1231 files changed, 38251 insertions, 41953 deletions

diff --git a/.gitignore b/.gitignore
index a79bcf97c4..7bc051278c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -261,7 +261,6 @@ JAVADOC-GENERATED
 
 # edoc
 
-/lib/edoc/priv/edoc_generate
 /lib/edoc/src/edoc_parser.erl
 
 # erts
diff --git a/HOWTO/INSTALL.md b/HOWTO/INSTALL.md
index d61aedf5a3..f62429a3ff 100644
--- a/HOWTO/INSTALL.md
+++ b/HOWTO/INSTALL.md
@@ -417,11 +417,6 @@ Some of the available `configure` options are:
     and scalability compared to the default clock sources chosen.
 *   `--disable-saved-compile-time` - Disable saving of compile date and time
     in the emulator binary.
-*   `--enable-dirty-schedulers` - Enable the **experimental** dirty schedulers
-    functionality. Note that the dirty schedulers functionality is experimental,
-    and **not supported**. This functionality **will** be subject to backward
-    incompatible changes. Note that you should **not** enable the dirty scheduler
-    functionality on production systems. It is only provided for testing.
 
 If you or your system has special requirements please read the `Makefile` for
 additional configuration information.
diff --git a/bootstrap/bin/no_dot_erlang.boot b/bootstrap/bin/no_dot_erlang.boot
new file mode 100644
index 0000000000..fc355b9c10
--- /dev/null
+++ b/bootstrap/bin/no_dot_erlang.boot
diff --git a/bootstrap/bin/start.boot b/bootstrap/bin/start.boot
index 0fa43faa1f..fc355b9c10 100644
--- a/bootstrap/bin/start.boot
+++ b/bootstrap/bin/start.boot
diff --git a/bootstrap/bin/start_clean.boot b/bootstrap/bin/start_clean.boot
index 0fa43faa1f..fc355b9c10 100644
--- a/bootstrap/bin/start_clean.boot
+++ b/bootstrap/bin/start_clean.boot
diff --git a/bootstrap/lib/compiler/ebin/beam_asm.beam b/bootstrap/lib/compiler/ebin/beam_asm.beam
index 28eaae1003..62f4438b43 100644
--- a/bootstrap/lib/compiler/ebin/beam_asm.beam
+++ b/bootstrap/lib/compiler/ebin/beam_asm.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_bs.beam b/bootstrap/lib/compiler/ebin/beam_bs.beam
index 6a5532ea9e..9c398ae80c 100644
--- a/bootstrap/lib/compiler/ebin/beam_bs.beam
+++ b/bootstrap/lib/compiler/ebin/beam_bs.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_dict.beam b/bootstrap/lib/compiler/ebin/beam_dict.beam
index 5b4ba12152..a9ea05ab77 100644
--- a/bootstrap/lib/compiler/ebin/beam_dict.beam
+++ b/bootstrap/lib/compiler/ebin/beam_dict.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_listing.beam b/bootstrap/lib/compiler/ebin/beam_listing.beam
index 74695349ba..281e9c2d03 100644
--- a/bootstrap/lib/compiler/ebin/beam_listing.beam
+++ b/bootstrap/lib/compiler/ebin/beam_listing.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_peep.beam b/bootstrap/lib/compiler/ebin/beam_peep.beam
index a26cb84590..2bb2df33a3 100644
--- a/bootstrap/lib/compiler/ebin/beam_peep.beam
+++ b/bootstrap/lib/compiler/ebin/beam_peep.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_receive.beam b/bootstrap/lib/compiler/ebin/beam_receive.beam
index 1152825b01..e09c50db25 100644
--- a/bootstrap/lib/compiler/ebin/beam_receive.beam
+++ b/bootstrap/lib/compiler/ebin/beam_receive.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_type.beam b/bootstrap/lib/compiler/ebin/beam_type.beam
index d0e6da02a8..893a91a4ad 100644
--- a/bootstrap/lib/compiler/ebin/beam_type.beam
+++ b/bootstrap/lib/compiler/ebin/beam_type.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_utils.beam b/bootstrap/lib/compiler/ebin/beam_utils.beam
index 6d50d4fca5..8d83f5eadc 100644
--- a/bootstrap/lib/compiler/ebin/beam_utils.beam
+++ b/bootstrap/lib/compiler/ebin/beam_utils.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_validator.beam b/bootstrap/lib/compiler/ebin/beam_validator.beam
index f937205789..9c2e1a2c4c 100644
--- a/bootstrap/lib/compiler/ebin/beam_validator.beam
+++ b/bootstrap/lib/compiler/ebin/beam_validator.beam
diff --git a/bootstrap/lib/compiler/ebin/beam_z.beam b/bootstrap/lib/compiler/ebin/beam_z.beam
index 71db427c29..fafd2065e5 100644
--- a/bootstrap/lib/compiler/ebin/beam_z.beam
+++ b/bootstrap/lib/compiler/ebin/beam_z.beam
diff --git a/bootstrap/lib/compiler/ebin/compile.beam b/bootstrap/lib/compiler/ebin/compile.beam
index a92341690d..5387a0074d 100644
--- a/bootstrap/lib/compiler/ebin/compile.beam
+++ b/bootstrap/lib/compiler/ebin/compile.beam
diff --git a/bootstrap/lib/compiler/ebin/compiler.app b/bootstrap/lib/compiler/ebin/compiler.app
index 3482c44d09..01e2c478d4 100644
--- a/bootstrap/lib/compiler/ebin/compiler.app
+++ b/bootstrap/lib/compiler/ebin/compiler.app
@@ -19,7 +19,7 @@
 
 {application, compiler,
  [{description, "ERTS  CXC 138 10"},
-  {vsn, "7.1"},
+  {vsn, "7.1.3"},
   {modules, [
 	     beam_a,
 	     beam_asm,
@@ -68,8 +68,7 @@
 	     v3_codegen,
 	     v3_core,
 	     v3_kernel,
-	     v3_kernel_pp,
-	     v3_life
+	     v3_kernel_pp
 	    ]},
   {registered, []},
   {applications, [kernel, stdlib]},
diff --git a/bootstrap/lib/compiler/ebin/compiler.appup b/bootstrap/lib/compiler/ebin/compiler.appup
index 46d858ee26..277b35faa8 100644
--- a/bootstrap/lib/compiler/ebin/compiler.appup
+++ b/bootstrap/lib/compiler/ebin/compiler.appup
@@ -16,7 +16,7 @@
 %% limitations under the License.
 %%
 %% %CopyrightEnd%
-{"7.1",
+{"7.1.1",
  [{<<".*">>,[{restart_application, compiler}]}],
  [{<<".*">>,[{restart_application, compiler}]}]
 }.
diff --git a/bootstrap/lib/compiler/ebin/core_parse.beam b/bootstrap/lib/compiler/ebin/core_parse.beam
index f95a6fca4e..540a6d8658 100644
--- a/bootstrap/lib/compiler/ebin/core_parse.beam
+++ b/bootstrap/lib/compiler/ebin/core_parse.beam
diff --git a/bootstrap/lib/compiler/ebin/core_pp.beam b/bootstrap/lib/compiler/ebin/core_pp.beam
index 8f4137db70..f0573bd200 100644
--- a/bootstrap/lib/compiler/ebin/core_pp.beam
+++ b/bootstrap/lib/compiler/ebin/core_pp.beam
diff --git a/bootstrap/lib/compiler/ebin/core_scan.beam b/bootstrap/lib/compiler/ebin/core_scan.beam
index cacdac171a..398c538178 100644
--- a/bootstrap/lib/compiler/ebin/core_scan.beam
+++ b/bootstrap/lib/compiler/ebin/core_scan.beam
diff --git a/bootstrap/lib/compiler/ebin/sys_core_fold.beam b/bootstrap/lib/compiler/ebin/sys_core_fold.beam
index dfedc09f49..06675205bc 100644
--- a/bootstrap/lib/compiler/ebin/sys_core_fold.beam
+++ b/bootstrap/lib/compiler/ebin/sys_core_fold.beam
diff --git a/bootstrap/lib/compiler/ebin/v3_codegen.beam b/bootstrap/lib/compiler/ebin/v3_codegen.beam
index 7dbf6a4650..09ff7b253d 100644
--- a/bootstrap/lib/compiler/ebin/v3_codegen.beam
+++ b/bootstrap/lib/compiler/ebin/v3_codegen.beam
diff --git a/bootstrap/lib/compiler/ebin/v3_kernel.beam b/bootstrap/lib/compiler/ebin/v3_kernel.beam
index 6143af9050..56af498763 100644
--- a/bootstrap/lib/compiler/ebin/v3_kernel.beam
+++ b/bootstrap/lib/compiler/ebin/v3_kernel.beam
diff --git a/bootstrap/lib/compiler/ebin/v3_kernel_pp.beam b/bootstrap/lib/compiler/ebin/v3_kernel_pp.beam
index 6b127e86d0..b67d012f34 100644
--- a/bootstrap/lib/compiler/ebin/v3_kernel_pp.beam
+++ b/bootstrap/lib/compiler/ebin/v3_kernel_pp.beam
diff --git a/bootstrap/lib/compiler/ebin/v3_life.beam b/bootstrap/lib/compiler/ebin/v3_life.beam
deleted file mode 100644
index c20070cf34..0000000000
--- a/bootstrap/lib/compiler/ebin/v3_life.beam
+++ /dev/null
diff --git a/bootstrap/lib/kernel/ebin/application.beam b/bootstrap/lib/kernel/ebin/application.beam
index 05ecd20859..d242e045a1 100644
--- a/bootstrap/lib/kernel/ebin/application.beam
+++ b/bootstrap/lib/kernel/ebin/application.beam
diff --git a/bootstrap/lib/kernel/ebin/application_controller.beam b/bootstrap/lib/kernel/ebin/application_controller.beam
index 2f480b5e37..834cabf0fc 100644
--- a/bootstrap/lib/kernel/ebin/application_controller.beam
+++ b/bootstrap/lib/kernel/ebin/application_controller.beam
diff --git a/bootstrap/lib/kernel/ebin/application_master.beam b/bootstrap/lib/kernel/ebin/application_master.beam
index 59606bc90d..7b15fc7633 100644
--- a/bootstrap/lib/kernel/ebin/application_master.beam
+++ b/bootstrap/lib/kernel/ebin/application_master.beam
diff --git a/bootstrap/lib/kernel/ebin/auth.beam b/bootstrap/lib/kernel/ebin/auth.beam
index f1126ac7c8..45afd111e8 100644
--- a/bootstrap/lib/kernel/ebin/auth.beam
+++ b/bootstrap/lib/kernel/ebin/auth.beam
diff --git a/bootstrap/lib/kernel/ebin/code.beam b/bootstrap/lib/kernel/ebin/code.beam
index 418816a351..9ebd823d58 100644
--- a/bootstrap/lib/kernel/ebin/code.beam
+++ b/bootstrap/lib/kernel/ebin/code.beam
diff --git a/bootstrap/lib/kernel/ebin/code_server.beam b/bootstrap/lib/kernel/ebin/code_server.beam
index 536da5c692..f9ca469b0d 100644
--- a/bootstrap/lib/kernel/ebin/code_server.beam
+++ b/bootstrap/lib/kernel/ebin/code_server.beam
diff --git a/bootstrap/lib/kernel/ebin/disk_log.beam b/bootstrap/lib/kernel/ebin/disk_log.beam
index 4dc0ef29f2..fc71affe55 100644
--- a/bootstrap/lib/kernel/ebin/disk_log.beam
+++ b/bootstrap/lib/kernel/ebin/disk_log.beam
diff --git a/bootstrap/lib/kernel/ebin/disk_log_1.beam b/bootstrap/lib/kernel/ebin/disk_log_1.beam
index 8c4dff2c02..a42a4c1b86 100644
--- a/bootstrap/lib/kernel/ebin/disk_log_1.beam
+++ b/bootstrap/lib/kernel/ebin/disk_log_1.beam
diff --git a/bootstrap/lib/kernel/ebin/disk_log_server.beam b/bootstrap/lib/kernel/ebin/disk_log_server.beam
index 9adde8e499..96bad0104e 100644
--- a/bootstrap/lib/kernel/ebin/disk_log_server.beam
+++ b/bootstrap/lib/kernel/ebin/disk_log_server.beam
diff --git a/bootstrap/lib/kernel/ebin/dist_util.beam b/bootstrap/lib/kernel/ebin/dist_util.beam
index 6376d791cf..fd4e4fb5de 100644
--- a/bootstrap/lib/kernel/ebin/dist_util.beam
+++ b/bootstrap/lib/kernel/ebin/dist_util.beam
diff --git a/bootstrap/lib/kernel/ebin/erl_boot_server.beam b/bootstrap/lib/kernel/ebin/erl_boot_server.beam
index ef3fe6fdea..d9de814e60 100644
--- a/bootstrap/lib/kernel/ebin/erl_boot_server.beam
+++ b/bootstrap/lib/kernel/ebin/erl_boot_server.beam
diff --git a/bootstrap/lib/kernel/ebin/erl_reply.beam b/bootstrap/lib/kernel/ebin/erl_reply.beam
index 6266aaa37c..d9dee00b6a 100644
--- a/bootstrap/lib/kernel/ebin/erl_reply.beam
+++ b/bootstrap/lib/kernel/ebin/erl_reply.beam
diff --git a/bootstrap/lib/kernel/ebin/error_logger.beam b/bootstrap/lib/kernel/ebin/error_logger.beam
index ea0cf3bfe9..2415215395 100644
--- a/bootstrap/lib/kernel/ebin/error_logger.beam
+++ b/bootstrap/lib/kernel/ebin/error_logger.beam
diff --git a/bootstrap/lib/kernel/ebin/erts_debug.beam b/bootstrap/lib/kernel/ebin/erts_debug.beam
index a47aec4a2e..41ce96a83d 100644
--- a/bootstrap/lib/kernel/ebin/erts_debug.beam
+++ b/bootstrap/lib/kernel/ebin/erts_debug.beam
diff --git a/bootstrap/lib/kernel/ebin/file_io_server.beam b/bootstrap/lib/kernel/ebin/file_io_server.beam
index d0279971b0..74a62d6388 100644
--- a/bootstrap/lib/kernel/ebin/file_io_server.beam
+++ b/bootstrap/lib/kernel/ebin/file_io_server.beam
diff --git a/bootstrap/lib/kernel/ebin/file_server.beam b/bootstrap/lib/kernel/ebin/file_server.beam
index 464f1222e6..d609725fa8 100644
--- a/bootstrap/lib/kernel/ebin/file_server.beam
+++ b/bootstrap/lib/kernel/ebin/file_server.beam
diff --git a/bootstrap/lib/kernel/ebin/global.beam b/bootstrap/lib/kernel/ebin/global.beam
index bf95e63f23..ff9a409bf8 100644
--- a/bootstrap/lib/kernel/ebin/global.beam
+++ b/bootstrap/lib/kernel/ebin/global.beam
diff --git a/bootstrap/lib/kernel/ebin/global_group.beam b/bootstrap/lib/kernel/ebin/global_group.beam
index ef0913f98d..1e496fdbbf 100644
--- a/bootstrap/lib/kernel/ebin/global_group.beam
+++ b/bootstrap/lib/kernel/ebin/global_group.beam
diff --git a/bootstrap/lib/kernel/ebin/group.beam b/bootstrap/lib/kernel/ebin/group.beam
index 57851fcb6e..5eecaecec8 100644
--- a/bootstrap/lib/kernel/ebin/group.beam
+++ b/bootstrap/lib/kernel/ebin/group.beam
diff --git a/bootstrap/lib/kernel/ebin/group_history.beam b/bootstrap/lib/kernel/ebin/group_history.beam
index 1def2a5d42..80afde896f 100644
--- a/bootstrap/lib/kernel/ebin/group_history.beam
+++ b/bootstrap/lib/kernel/ebin/group_history.beam
diff --git a/bootstrap/lib/kernel/ebin/hipe_unified_loader.beam b/bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
index 2682b088ea..286f4aa309 100644
--- a/bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
+++ b/bootstrap/lib/kernel/ebin/hipe_unified_loader.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_config.beam b/bootstrap/lib/kernel/ebin/inet_config.beam
index ab06763c7d..6e02c48609 100644
--- a/bootstrap/lib/kernel/ebin/inet_config.beam
+++ b/bootstrap/lib/kernel/ebin/inet_config.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_db.beam b/bootstrap/lib/kernel/ebin/inet_db.beam
index e2b5639720..0c77cee005 100644
--- a/bootstrap/lib/kernel/ebin/inet_db.beam
+++ b/bootstrap/lib/kernel/ebin/inet_db.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_dns.beam b/bootstrap/lib/kernel/ebin/inet_dns.beam
index cebe72a7f0..f36b12952e 100644
--- a/bootstrap/lib/kernel/ebin/inet_dns.beam
+++ b/bootstrap/lib/kernel/ebin/inet_dns.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_gethost_native.beam b/bootstrap/lib/kernel/ebin/inet_gethost_native.beam
index 177603b397..c68dd12796 100644
--- a/bootstrap/lib/kernel/ebin/inet_gethost_native.beam
+++ b/bootstrap/lib/kernel/ebin/inet_gethost_native.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_parse.beam b/bootstrap/lib/kernel/ebin/inet_parse.beam
index a5b4d7611f..cd27ee7265 100644
--- a/bootstrap/lib/kernel/ebin/inet_parse.beam
+++ b/bootstrap/lib/kernel/ebin/inet_parse.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_res.beam b/bootstrap/lib/kernel/ebin/inet_res.beam
index 4c7b77c558..d0bef34afd 100644
--- a/bootstrap/lib/kernel/ebin/inet_res.beam
+++ b/bootstrap/lib/kernel/ebin/inet_res.beam
diff --git a/bootstrap/lib/kernel/ebin/inet_tcp_dist.beam b/bootstrap/lib/kernel/ebin/inet_tcp_dist.beam
index dd71c19115..f25d7689f5 100644
--- a/bootstrap/lib/kernel/ebin/inet_tcp_dist.beam
+++ b/bootstrap/lib/kernel/ebin/inet_tcp_dist.beam
diff --git a/bootstrap/lib/kernel/ebin/kernel.app b/bootstrap/lib/kernel/ebin/kernel.app
index b888d914e8..68dcf6b930 100644
--- a/bootstrap/lib/kernel/ebin/kernel.app
+++ b/bootstrap/lib/kernel/ebin/kernel.app
@@ -22,7 +22,7 @@
 {application, kernel,
  [
   {description, "ERTS  CXC 138 10"},
-  {vsn, "5.3.1"},
+  {vsn, "5.4"},
   {modules, [application,
 	     application_controller,
 	     application_master,
@@ -120,6 +120,6 @@
   {applications, []},
   {env, [{error_logger, tty}]},
   {mod, {kernel, []}},
-  {runtime_dependencies, ["erts-9.1", "stdlib-3.0", "sasl-3.0"]}
+  {runtime_dependencies, ["erts-10.0", "stdlib-3.5", "sasl-3.0"]}
  ]
 }.
diff --git a/bootstrap/lib/kernel/ebin/kernel.appup b/bootstrap/lib/kernel/ebin/kernel.appup
index 519e83f7e4..7ddb592671 100644
--- a/bootstrap/lib/kernel/ebin/kernel.appup
+++ b/bootstrap/lib/kernel/ebin/kernel.appup
@@ -16,7 +16,7 @@
 %% limitations under the License.
 %%
 %% %CopyrightEnd%
-{"5.3.1",
+{"5.4",
  %% Up from - max one major revision back
  [{<<"5\\.3(\\.[0-9]+)*">>,[restart_new_emulator]}], % OTP-20.*
  %% Down to - max one major revision back
diff --git a/bootstrap/lib/kernel/ebin/net_kernel.beam b/bootstrap/lib/kernel/ebin/net_kernel.beam
index a1b21b2b97..3d59085f05 100644
--- a/bootstrap/lib/kernel/ebin/net_kernel.beam
+++ b/bootstrap/lib/kernel/ebin/net_kernel.beam
diff --git a/bootstrap/lib/kernel/ebin/os.beam b/bootstrap/lib/kernel/ebin/os.beam
index 0bc6403871..e8cac1d153 100644
--- a/bootstrap/lib/kernel/ebin/os.beam
+++ b/bootstrap/lib/kernel/ebin/os.beam
diff --git a/bootstrap/lib/kernel/ebin/pg2.beam b/bootstrap/lib/kernel/ebin/pg2.beam
index 9a0f8169f6..56f75405fd 100644
--- a/bootstrap/lib/kernel/ebin/pg2.beam
+++ b/bootstrap/lib/kernel/ebin/pg2.beam
diff --git a/bootstrap/lib/kernel/ebin/ram_file.beam b/bootstrap/lib/kernel/ebin/ram_file.beam
index 8f4e066f3a..af9159a318 100644
--- a/bootstrap/lib/kernel/ebin/ram_file.beam
+++ b/bootstrap/lib/kernel/ebin/ram_file.beam
diff --git a/bootstrap/lib/kernel/ebin/rpc.beam b/bootstrap/lib/kernel/ebin/rpc.beam
index 909cf49410..aaf7ef0483 100644
--- a/bootstrap/lib/kernel/ebin/rpc.beam
+++ b/bootstrap/lib/kernel/ebin/rpc.beam
diff --git a/bootstrap/lib/kernel/ebin/standard_error.beam b/bootstrap/lib/kernel/ebin/standard_error.beam
index 015f2c19cb..e50302a387 100644
--- a/bootstrap/lib/kernel/ebin/standard_error.beam
+++ b/bootstrap/lib/kernel/ebin/standard_error.beam
diff --git a/bootstrap/lib/kernel/ebin/user.beam b/bootstrap/lib/kernel/ebin/user.beam
index cf4e55254c..e8b49b2b33 100644
--- a/bootstrap/lib/kernel/ebin/user.beam
+++ b/bootstrap/lib/kernel/ebin/user.beam
diff --git a/bootstrap/lib/kernel/ebin/user_drv.beam b/bootstrap/lib/kernel/ebin/user_drv.beam
index 0b2b06ae5b..b6ac29d5c4 100644
--- a/bootstrap/lib/kernel/ebin/user_drv.beam
+++ b/bootstrap/lib/kernel/ebin/user_drv.beam
diff --git a/bootstrap/lib/kernel/include/dist.hrl b/bootstrap/lib/kernel/include/dist.hrl
index d6bccdf474..db4a5eaebc 100644
--- a/bootstrap/lib/kernel/include/dist.hrl
+++ b/bootstrap/lib/kernel/include/dist.hrl
@@ -40,3 +40,33 @@
 -define(DFLAG_UTF8_ATOMS, 16#10000).
 -define(DFLAG_MAP_TAG, 16#20000).
 -define(DFLAG_BIG_CREATION, 16#40000).
+-define(DFLAG_SEND_SENDER, 16#80000).
+
+%% DFLAGs that require strict ordering or:ed together...
+-define(DFLAGS_STRICT_ORDER_DELIVERY,
+        ?DFLAG_DIST_HDR_ATOM_CACHE).
+
+
+%% Also update dflag2str() in ../src/dist_util.erl
+%% when adding flags...
+
+-define(DFLAGS_ALL,
+        (?DFLAG_PUBLISHED
+             bor ?DFLAG_ATOM_CACHE
+             bor ?DFLAG_EXTENDED_REFERENCES
+             bor ?DFLAG_DIST_MONITOR
+             bor ?DFLAG_FUN_TAGS
+             bor ?DFLAG_DIST_MONITOR_NAME
+             bor ?DFLAG_HIDDEN_ATOM_CACHE
+             bor ?DFLAG_NEW_FUN_TAGS
+             bor ?DFLAG_EXTENDED_PIDS_PORTS
+             bor ?DFLAG_EXPORT_PTR_TAG
+             bor ?DFLAG_BIT_BINARIES
+             bor ?DFLAG_NEW_FLOATS
+             bor ?DFLAG_UNICODE_IO
+             bor ?DFLAG_DIST_HDR_ATOM_CACHE
+             bor ?DFLAG_SMALL_ATOM_TAGS
+             bor ?DFLAG_UTF8_ATOMS
+             bor ?DFLAG_MAP_TAG
+             bor ?DFLAG_BIG_CREATION
+             bor ?DFLAG_SEND_SENDER)).
diff --git a/bootstrap/lib/kernel/include/dist_util.hrl b/bootstrap/lib/kernel/include/dist_util.hrl
index e3d2fe0eb6..eeb0f8dd43 100644
--- a/bootstrap/lib/kernel/include/dist_util.hrl
+++ b/bootstrap/lib/kernel/include/dist_util.hrl
@@ -29,9 +29,9 @@
 -endif.
 
 -ifdef(dist_trace).
--define(trace(Fmt,Args), io:format("~p ~p:~s",[erlang:timestamp(),node(),lists:flatten(io_lib:format(Fmt, Args))])).
+-define(trace(Fmt,Args), io:format("~p ~p:~s",[erlang:convert_time_unit(erlang:monotonic_time()-erlang:system_info(start_time), native, microsecond),node(),lists:flatten(io_lib:format(Fmt, Args))])).
 % Use the one below for config-file (early boot) connection tracing
-%-define(trace(Fmt,Args), erlang:display([erlang:now(),node(),lists:flatten(io_lib:format(Fmt, Args))])).
+%-define(trace(Fmt,Args), erlang:display([erlang:convert_time_unit(erlang:monotonic_time()-erlang:system_info(start_time), native, microsecond),node(),lists:flatten(io_lib:format(Fmt, Args))])).
 -define(trace_factor,8).
 -else.
 -define(trace(Fmt,Args), ok).
@@ -78,7 +78,13 @@
 
 	  %% New in kernel-5.1 (OTP 19.1):
 	  mf_setopts,        %% netkernel:setopts on active connection
-	  mf_getopts         %% netkernel:getopts on active connection
+	  mf_getopts,         %% netkernel:getopts on active connection
+
+          %% New in kernel-6.0 (OTP 21.0)
+          f_handshake_complete, %% Notify handshake complete
+          add_flags,         %% dflags to add
+          reject_flags,      %% dflags not to use (not all can be rejected)
+          require_flags     %% dflags that are required
 }).
 	  
 
diff --git a/bootstrap/lib/stdlib/ebin/base64.beam b/bootstrap/lib/stdlib/ebin/base64.beam
index 00c908062a..4d8141a9c1 100644
--- a/bootstrap/lib/stdlib/ebin/base64.beam
+++ b/bootstrap/lib/stdlib/ebin/base64.beam
diff --git a/bootstrap/lib/stdlib/ebin/beam_lib.beam b/bootstrap/lib/stdlib/ebin/beam_lib.beam
index 8255fc6f82..a9643f6a83 100644
--- a/bootstrap/lib/stdlib/ebin/beam_lib.beam
+++ b/bootstrap/lib/stdlib/ebin/beam_lib.beam
diff --git a/bootstrap/lib/stdlib/ebin/binary.beam b/bootstrap/lib/stdlib/ebin/binary.beam
index 70c0873a8e..c392aa2871 100644
--- a/bootstrap/lib/stdlib/ebin/binary.beam
+++ b/bootstrap/lib/stdlib/ebin/binary.beam
diff --git a/bootstrap/lib/stdlib/ebin/c.beam b/bootstrap/lib/stdlib/ebin/c.beam
index 9e30687b57..3baf074b66 100644
--- a/bootstrap/lib/stdlib/ebin/c.beam
+++ b/bootstrap/lib/stdlib/ebin/c.beam
diff --git a/bootstrap/lib/stdlib/ebin/dets.beam b/bootstrap/lib/stdlib/ebin/dets.beam
index 87e12c295a..e57da59d9d 100644
--- a/bootstrap/lib/stdlib/ebin/dets.beam
+++ b/bootstrap/lib/stdlib/ebin/dets.beam
diff --git a/bootstrap/lib/stdlib/ebin/dets_utils.beam b/bootstrap/lib/stdlib/ebin/dets_utils.beam
index 29ca601743..3a3801fd5d 100644
--- a/bootstrap/lib/stdlib/ebin/dets_utils.beam
+++ b/bootstrap/lib/stdlib/ebin/dets_utils.beam
diff --git a/bootstrap/lib/stdlib/ebin/dets_v9.beam b/bootstrap/lib/stdlib/ebin/dets_v9.beam
index 0590996d82..7328637dde 100644
--- a/bootstrap/lib/stdlib/ebin/dets_v9.beam
+++ b/bootstrap/lib/stdlib/ebin/dets_v9.beam
diff --git a/bootstrap/lib/stdlib/ebin/digraph_utils.beam b/bootstrap/lib/stdlib/ebin/digraph_utils.beam
index 11ec1d3b7c..a1fd652de6 100644
--- a/bootstrap/lib/stdlib/ebin/digraph_utils.beam
+++ b/bootstrap/lib/stdlib/ebin/digraph_utils.beam
diff --git a/bootstrap/lib/stdlib/ebin/edlin.beam b/bootstrap/lib/stdlib/ebin/edlin.beam
index 7918c739f6..06b7ba8b81 100644
--- a/bootstrap/lib/stdlib/ebin/edlin.beam
+++ b/bootstrap/lib/stdlib/ebin/edlin.beam
diff --git a/bootstrap/lib/stdlib/ebin/edlin_expand.beam b/bootstrap/lib/stdlib/ebin/edlin_expand.beam
index 3ed148ace7..8579266b8f 100644
--- a/bootstrap/lib/stdlib/ebin/edlin_expand.beam
+++ b/bootstrap/lib/stdlib/ebin/edlin_expand.beam
diff --git a/bootstrap/lib/stdlib/ebin/epp.beam b/bootstrap/lib/stdlib/ebin/epp.beam
index 36c2b2219e..b41a852d89 100644
--- a/bootstrap/lib/stdlib/ebin/epp.beam
+++ b/bootstrap/lib/stdlib/ebin/epp.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_anno.beam b/bootstrap/lib/stdlib/ebin/erl_anno.beam
index 11bd496e2e..8797a1a2b8 100644
--- a/bootstrap/lib/stdlib/ebin/erl_anno.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_anno.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_compile.beam b/bootstrap/lib/stdlib/ebin/erl_compile.beam
index d39b5a29b0..749c05c54f 100644
--- a/bootstrap/lib/stdlib/ebin/erl_compile.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_compile.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_eval.beam b/bootstrap/lib/stdlib/ebin/erl_eval.beam
index 9244cff669..fc33e5d727 100644
--- a/bootstrap/lib/stdlib/ebin/erl_eval.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_eval.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_lint.beam b/bootstrap/lib/stdlib/ebin/erl_lint.beam
index 660ac92074..616c211390 100644
--- a/bootstrap/lib/stdlib/ebin/erl_lint.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_lint.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_parse.beam b/bootstrap/lib/stdlib/ebin/erl_parse.beam
index ce2c86c6e9..5bcbf9189f 100644
--- a/bootstrap/lib/stdlib/ebin/erl_parse.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_parse.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_pp.beam b/bootstrap/lib/stdlib/ebin/erl_pp.beam
index 49a9908831..e2886be779 100644
--- a/bootstrap/lib/stdlib/ebin/erl_pp.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_pp.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_scan.beam b/bootstrap/lib/stdlib/ebin/erl_scan.beam
index 86307bc790..d36202515a 100644
--- a/bootstrap/lib/stdlib/ebin/erl_scan.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_scan.beam
diff --git a/bootstrap/lib/stdlib/ebin/erl_tar.beam b/bootstrap/lib/stdlib/ebin/erl_tar.beam
index 08fd3049ce..df0d6cf1b8 100644
--- a/bootstrap/lib/stdlib/ebin/erl_tar.beam
+++ b/bootstrap/lib/stdlib/ebin/erl_tar.beam
diff --git a/bootstrap/lib/stdlib/ebin/error_logger_file_h.beam b/bootstrap/lib/stdlib/ebin/error_logger_file_h.beam
index 957843b319..579a564783 100644
--- a/bootstrap/lib/stdlib/ebin/error_logger_file_h.beam
+++ b/bootstrap/lib/stdlib/ebin/error_logger_file_h.beam
diff --git a/bootstrap/lib/stdlib/ebin/error_logger_tty_h.beam b/bootstrap/lib/stdlib/ebin/error_logger_tty_h.beam
index f1a884a0c9..5152c14d82 100644
--- a/bootstrap/lib/stdlib/ebin/error_logger_tty_h.beam
+++ b/bootstrap/lib/stdlib/ebin/error_logger_tty_h.beam
diff --git a/bootstrap/lib/stdlib/ebin/escript.beam b/bootstrap/lib/stdlib/ebin/escript.beam
index 7247d35dfc..10982c84ce 100644
--- a/bootstrap/lib/stdlib/ebin/escript.beam
+++ b/bootstrap/lib/stdlib/ebin/escript.beam
diff --git a/bootstrap/lib/stdlib/ebin/ets.beam b/bootstrap/lib/stdlib/ebin/ets.beam
index 006e02496f..95fbd243c3 100644
--- a/bootstrap/lib/stdlib/ebin/ets.beam
+++ b/bootstrap/lib/stdlib/ebin/ets.beam
diff --git a/bootstrap/lib/stdlib/ebin/eval_bits.beam b/bootstrap/lib/stdlib/ebin/eval_bits.beam
index 08707d9147..9b9c9fe3f6 100644
--- a/bootstrap/lib/stdlib/ebin/eval_bits.beam
+++ b/bootstrap/lib/stdlib/ebin/eval_bits.beam
diff --git a/bootstrap/lib/stdlib/ebin/file_sorter.beam b/bootstrap/lib/stdlib/ebin/file_sorter.beam
index f2a1fd74d0..c5d371f463 100644
--- a/bootstrap/lib/stdlib/ebin/file_sorter.beam
+++ b/bootstrap/lib/stdlib/ebin/file_sorter.beam
diff --git a/bootstrap/lib/stdlib/ebin/filelib.beam b/bootstrap/lib/stdlib/ebin/filelib.beam
index 1378390c61..4921d0631d 100644
--- a/bootstrap/lib/stdlib/ebin/filelib.beam
+++ b/bootstrap/lib/stdlib/ebin/filelib.beam
diff --git a/bootstrap/lib/stdlib/ebin/filename.beam b/bootstrap/lib/stdlib/ebin/filename.beam
index a94acbb852..9ac0d3272c 100644
--- a/bootstrap/lib/stdlib/ebin/filename.beam
+++ b/bootstrap/lib/stdlib/ebin/filename.beam
diff --git a/bootstrap/lib/stdlib/ebin/gen.beam b/bootstrap/lib/stdlib/ebin/gen.beam
index a8155b1cb4..916bafd013 100644
--- a/bootstrap/lib/stdlib/ebin/gen.beam
+++ b/bootstrap/lib/stdlib/ebin/gen.beam
diff --git a/bootstrap/lib/stdlib/ebin/gen_event.beam b/bootstrap/lib/stdlib/ebin/gen_event.beam
index d2a2986d4f..8e7696b689 100644
--- a/bootstrap/lib/stdlib/ebin/gen_event.beam
+++ b/bootstrap/lib/stdlib/ebin/gen_event.beam
diff --git a/bootstrap/lib/stdlib/ebin/gen_fsm.beam b/bootstrap/lib/stdlib/ebin/gen_fsm.beam
index 4a85d11c8b..ab6419dd87 100644
--- a/bootstrap/lib/stdlib/ebin/gen_fsm.beam
+++ b/bootstrap/lib/stdlib/ebin/gen_fsm.beam
diff --git a/bootstrap/lib/stdlib/ebin/gen_server.beam b/bootstrap/lib/stdlib/ebin/gen_server.beam
index df740137a1..ffa191a785 100644
--- a/bootstrap/lib/stdlib/ebin/gen_server.beam
+++ b/bootstrap/lib/stdlib/ebin/gen_server.beam
diff --git a/bootstrap/lib/stdlib/ebin/gen_statem.beam b/bootstrap/lib/stdlib/ebin/gen_statem.beam
index b5cd1a96ca..9b86faed77 100644
--- a/bootstrap/lib/stdlib/ebin/gen_statem.beam
+++ b/bootstrap/lib/stdlib/ebin/gen_statem.beam
diff --git a/bootstrap/lib/stdlib/ebin/io.beam b/bootstrap/lib/stdlib/ebin/io.beam
index 7baa73f7ff..18f66f5443 100644
--- a/bootstrap/lib/stdlib/ebin/io.beam
+++ b/bootstrap/lib/stdlib/ebin/io.beam
diff --git a/bootstrap/lib/stdlib/ebin/io_lib.beam b/bootstrap/lib/stdlib/ebin/io_lib.beam
index 20e0427c80..3884967cba 100644
--- a/bootstrap/lib/stdlib/ebin/io_lib.beam
+++ b/bootstrap/lib/stdlib/ebin/io_lib.beam
diff --git a/bootstrap/lib/stdlib/ebin/io_lib_format.beam b/bootstrap/lib/stdlib/ebin/io_lib_format.beam
index e85995c1de..c02da85965 100644
--- a/bootstrap/lib/stdlib/ebin/io_lib_format.beam
+++ b/bootstrap/lib/stdlib/ebin/io_lib_format.beam
diff --git a/bootstrap/lib/stdlib/ebin/io_lib_pretty.beam b/bootstrap/lib/stdlib/ebin/io_lib_pretty.beam
index 6ed1e3b7cc..183e5b6278 100644
--- a/bootstrap/lib/stdlib/ebin/io_lib_pretty.beam
+++ b/bootstrap/lib/stdlib/ebin/io_lib_pretty.beam
diff --git a/bootstrap/lib/stdlib/ebin/lib.beam b/bootstrap/lib/stdlib/ebin/lib.beam
index 6ad7dff7da..d7bf939406 100644
--- a/bootstrap/lib/stdlib/ebin/lib.beam
+++ b/bootstrap/lib/stdlib/ebin/lib.beam
diff --git a/bootstrap/lib/stdlib/ebin/otp_internal.beam b/bootstrap/lib/stdlib/ebin/otp_internal.beam
index 850a6b3c2f..166574e0f6 100644
--- a/bootstrap/lib/stdlib/ebin/otp_internal.beam
+++ b/bootstrap/lib/stdlib/ebin/otp_internal.beam
diff --git a/bootstrap/lib/stdlib/ebin/proc_lib.beam b/bootstrap/lib/stdlib/ebin/proc_lib.beam
index 5fd1cf52e2..7c9cfad78e 100644
--- a/bootstrap/lib/stdlib/ebin/proc_lib.beam
+++ b/bootstrap/lib/stdlib/ebin/proc_lib.beam
diff --git a/bootstrap/lib/stdlib/ebin/proplists.beam b/bootstrap/lib/stdlib/ebin/proplists.beam
index bec0de2782..176a0e0db5 100644
--- a/bootstrap/lib/stdlib/ebin/proplists.beam
+++ b/bootstrap/lib/stdlib/ebin/proplists.beam
diff --git a/bootstrap/lib/stdlib/ebin/qlc.beam b/bootstrap/lib/stdlib/ebin/qlc.beam
index 4c3091a85f..f0e42efbaa 100644
--- a/bootstrap/lib/stdlib/ebin/qlc.beam
+++ b/bootstrap/lib/stdlib/ebin/qlc.beam
diff --git a/bootstrap/lib/stdlib/ebin/qlc_pt.beam b/bootstrap/lib/stdlib/ebin/qlc_pt.beam
index ac343d8abd..c64367d023 100644
--- a/bootstrap/lib/stdlib/ebin/qlc_pt.beam
+++ b/bootstrap/lib/stdlib/ebin/qlc_pt.beam
diff --git a/bootstrap/lib/stdlib/ebin/rand.beam b/bootstrap/lib/stdlib/ebin/rand.beam
index 887a09385c..2877b269c9 100644
--- a/bootstrap/lib/stdlib/ebin/rand.beam
+++ b/bootstrap/lib/stdlib/ebin/rand.beam
diff --git a/bootstrap/lib/stdlib/ebin/re.beam b/bootstrap/lib/stdlib/ebin/re.beam
index da68ad9240..e59c6b0bc6 100644
--- a/bootstrap/lib/stdlib/ebin/re.beam
+++ b/bootstrap/lib/stdlib/ebin/re.beam
diff --git a/bootstrap/lib/stdlib/ebin/shell.beam b/bootstrap/lib/stdlib/ebin/shell.beam
index 7c512da568..0c4edd211d 100644
--- a/bootstrap/lib/stdlib/ebin/shell.beam
+++ b/bootstrap/lib/stdlib/ebin/shell.beam
diff --git a/bootstrap/lib/stdlib/ebin/slave.beam b/bootstrap/lib/stdlib/ebin/slave.beam
index 4c1cb29615..abab0acf33 100644
--- a/bootstrap/lib/stdlib/ebin/slave.beam
+++ b/bootstrap/lib/stdlib/ebin/slave.beam
diff --git a/bootstrap/lib/stdlib/ebin/sofs.beam b/bootstrap/lib/stdlib/ebin/sofs.beam
index a2cc62d4af..2e6cea119a 100644
--- a/bootstrap/lib/stdlib/ebin/sofs.beam
+++ b/bootstrap/lib/stdlib/ebin/sofs.beam
diff --git a/bootstrap/lib/stdlib/ebin/stdlib.app b/bootstrap/lib/stdlib/ebin/stdlib.app
index 4f3f8e759f..07309b88c4 100644
--- a/bootstrap/lib/stdlib/ebin/stdlib.app
+++ b/bootstrap/lib/stdlib/ebin/stdlib.app
@@ -20,7 +20,7 @@
 %%
 {application, stdlib,
  [{description, "ERTS  CXC 138 10"},
-  {vsn, "3.4.1"},
+  {vsn, "3.4.2"},
   {modules, [array,
 	     base64,
 	     beam_lib,
@@ -107,7 +107,7 @@
                dets]},
   {applications, [kernel]},
   {env, []},
-  {runtime_dependencies, ["sasl-3.0","kernel-5.0","erts-9.0","crypto-3.3",
+  {runtime_dependencies, ["sasl-3.0","kernel-6.0","erts-10.0","crypto-3.3",
 			  "compiler-5.0"]}
 ]}.
 
diff --git a/bootstrap/lib/stdlib/ebin/stdlib.appup b/bootstrap/lib/stdlib/ebin/stdlib.appup
index 40ae15f055..9996bfae81 100644
--- a/bootstrap/lib/stdlib/ebin/stdlib.appup
+++ b/bootstrap/lib/stdlib/ebin/stdlib.appup
@@ -16,7 +16,7 @@
 %% limitations under the License.
 %%
 %% %CopyrightEnd%
-{"3.4.1",
+{"3.4.2",
  %% Up from - max one major revision back
  [{<<"3\\.4(\\.[0-9]+)*">>,[restart_new_emulator]}], % OTP-20.*
  %% Down to - max one major revision back
diff --git a/bootstrap/lib/stdlib/ebin/string.beam b/bootstrap/lib/stdlib/ebin/string.beam
index a281027902..406b2e19de 100644
--- a/bootstrap/lib/stdlib/ebin/string.beam
+++ b/bootstrap/lib/stdlib/ebin/string.beam
diff --git a/bootstrap/lib/stdlib/ebin/supervisor.beam b/bootstrap/lib/stdlib/ebin/supervisor.beam
index a9e324ec31..f7f11b9b26 100644
--- a/bootstrap/lib/stdlib/ebin/supervisor.beam
+++ b/bootstrap/lib/stdlib/ebin/supervisor.beam
diff --git a/bootstrap/lib/stdlib/ebin/timer.beam b/bootstrap/lib/stdlib/ebin/timer.beam
index 4c570cbee6..25ab0d760f 100644
--- a/bootstrap/lib/stdlib/ebin/timer.beam
+++ b/bootstrap/lib/stdlib/ebin/timer.beam
diff --git a/bootstrap/lib/stdlib/ebin/unicode.beam b/bootstrap/lib/stdlib/ebin/unicode.beam
index 07bbde8b14..8d5ad0ce98 100644
--- a/bootstrap/lib/stdlib/ebin/unicode.beam
+++ b/bootstrap/lib/stdlib/ebin/unicode.beam
diff --git a/bootstrap/lib/stdlib/ebin/unicode_util.beam b/bootstrap/lib/stdlib/ebin/unicode_util.beam
index 4fcf959fe6..1532f67ef4 100644
--- a/bootstrap/lib/stdlib/ebin/unicode_util.beam
+++ b/bootstrap/lib/stdlib/ebin/unicode_util.beam
diff --git a/bootstrap/lib/stdlib/ebin/zip.beam b/bootstrap/lib/stdlib/ebin/zip.beam
index e1aa2716cb..1582220c5d 100644
--- a/bootstrap/lib/stdlib/ebin/zip.beam
+++ b/bootstrap/lib/stdlib/ebin/zip.beam
diff --git a/erts/configure.in b/erts/configure.in
index b47d94b285..2f6043ee85 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -118,17 +118,9 @@ AS_HELP_STRING([--enable-bootstrap-only],
 	with_ssl_zlib=no
 	enable_hipe=no
 	enable_sctp=no
-        enable_dirty_schedulers=no
-  fi	
+  fi
 ])
 
-AC_ARG_ENABLE(dirty-schedulers,
-AS_HELP_STRING([--enable-dirty-schedulers], [enable dirty scheduler support]),
-[ case "$enableval" in
-    no) enable_dirty_schedulers=no ;;
-    *)  enable_dirty_schedulers=yes ;;
-  esac ], enable_dirty_schedulers=default)
-
 AC_ARG_ENABLE(dirty-schedulers-test,
 AS_HELP_STRING([--enable-dirty-schedulers-test], [enable dirty scheduler test (for debugging purposes)]),
 [ case "$enableval" in
@@ -1060,20 +1052,7 @@ fi
 
 TYPES=opt
 
-AC_MSG_CHECKING(whether dirty schedulers should be enabled)
-case $enable_dirty_schedulers in
-     yes)
-	DIRTY_SCHEDULER_SUPPORT=yes;;
-     default)
-	DIRTY_SCHEDULER_SUPPORT=yes;;
-     *)
-	DIRTY_SCHEDULER_SUPPORT=no;;
-esac
-AC_MSG_RESULT($DIRTY_SCHEDULER_SUPPORT)
-AC_SUBST(DIRTY_SCHEDULER_SUPPORT)
-
 DIRTY_SCHEDULER_TEST=$enable_dirty_schedulers_test
-test $DIRTY_SCHEDULER_SUPPORT = yes || DIRTY_SCHEDULER_TEST=no
 AC_SUBST(DIRTY_SCHEDULER_TEST)
 test $DIRTY_SCHEDULER_TEST != yes || {
     test -f "$ERL_TOP/erts/CONF_INFO" || echo "" > "$ERL_TOP/erts/CONF_INFO"
@@ -1654,6 +1633,8 @@ AC_CHECK_HEADER(sys/resource.h,
 		[#include <sys/resource.h>])],
 	[],[])
 
+AC_CHECK_FUNCS([getrusage])
+
 dnl Check if we have kernel poll support
 have_kernel_poll=no
 AC_CHECK_HEADER(sys/event.h, have_kernel_poll=kqueue)
@@ -2781,6 +2762,20 @@ if test X${enable_hipe} = Xyes && test X$ARCH = Xamd64; then
 			     LDFLAGS=$saved_LDFLAGS])])])
 fi
 
+if test X${enable_hipe} = Xyes; then
+   case $OPSYS in
+	linux)
+		ppcBEAMLDFLAGS="-Wl,-m,elf32ppc"
+		ppc64BEAMLDFLAGS="-Wl,-m,elf64ppc,-T,hipe/elf64ppc.x"
+		;;
+	darwin)
+		amd64BEAMLDFLAGS="-pagezero_size 0x10000000"
+		;;
+   esac
+   archVarName="${ARCH}BEAMLDFLAGS"
+   eval HIPEBEAMLDFLAGS=\$$archVarName
+fi
+AC_SUBST(HIPEBEAMLDFLAGS)
 
 if test X${enable_fp_exceptions} = Xauto ; then
    case $host_os in
@@ -3478,62 +3473,24 @@ case $poll_works-$host_os in
 esac
 
 #
-# If kqueue() found, check that it can be selected or polled on...
+# If kqueue() found
 #
 if test $have_kernel_poll = kqueue; then
-	if test $poll_works = yes; then
-		kqueue_with=poll
-	else
-		kqueue_with=select
-	fi
-	AC_MSG_CHECKING([whether kqueue() fd can be ${kqueue_with}()ed on])
-	AC_TRY_RUN([
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/event.h>
-#include <sys/time.h>
-#ifdef ERTS_USE_POLL
-#include <poll.h>
-#else
-#include <unistd.h>
-#endif
-int main(void) {
-    int kq = kqueue();
-    if (kq < 0) return 2;
-    {
-#ifdef ERTS_USE_POLL
-	struct pollfd pfds = {kq, POLLIN, 0};
-	if (poll(&pfds, 1, 0) < 0) return 1;
-#else
-	struct timeval tv = {0, 0};
-	fd_set set; FD_ZERO(&set); FD_SET(kq, &set);
-	if (select(kq+1, &set, NULL, NULL, &tv) < 0) return 1;
-#endif
-    }
-    return 0;
-}
-	],
-	ok_kqueue=yes,
-	ok_kqueue=no,
-	[
-	case X$erl_xcomp_kqueue in
-	    X) ok_kqueue=cross;;
-	    Xyes|Xno) ok_kqueue=$erl_xcomp_kqueue;;
-	    *) AC_MSG_ERROR([Bad erl_xcomp_kqueue value: $erl_xcomp_kqueue]);;
-	esac
-	])
-	AC_MSG_RESULT($ok_kqueue);
-	case $ok_kqueue in
-	    yes)
-		;;
-	    cross)
-		have_kernel_poll=no
-		AC_MSG_WARN([result no guessed because of cross compilation]);;
-	    *)
-		have_kernel_poll=no;;
-	esac
+## Some OS X kernel version seems to have bugs in them with regards to kqueue
+## Disable kernel poll on those versions
+   AC_MSG_CHECKING([whether host os has known kqueue bugs])
+   case $host_os in
+     # Any OS X version < 16 has known problems with using kqueue
+     # so we don't use it there. See erl_poll.c for details.
+     darwin[[0-9]].*|darwin1[[0-5]].*)
+        AC_MSG_RESULT([yes, disabling kernel poll])
+        have_kernel_poll=no
+        ;;
+     *)
+        AC_MSG_RESULT([no])
+        ;;
+   esac
 fi
-
 #
 # If epoll() found, check that it is level triggered.
 #
@@ -3560,6 +3517,7 @@ fi
 #
 AC_MSG_CHECKING(whether kernel poll support should be enabled)
 ERTS_ENABLE_KERNEL_POLL=no
+ERTS_BUILD_FALLBACK_POLL=no
 case $enable_kernel_poll-$have_kernel_poll in
     no-*)
 	AC_MSG_RESULT(no; disabled by user);;
@@ -3570,11 +3528,16 @@ case $enable_kernel_poll-$have_kernel_poll in
     *)
 	case $have_kernel_poll in
 	    epoll)
-		AC_DEFINE(HAVE_SYS_EPOLL_H, 1, [Define if you have the <sys/epoll.h> header file.]);;
+		AC_DEFINE(HAVE_SYS_EPOLL_H, 1, [Define if you have the <sys/epoll.h> header file.])
+                ERTS_BUILD_FALLBACK_POLL=yes
+                ;;
 	    /dev/poll)
-		AC_DEFINE(HAVE_SYS_DEVPOLL_H, 1, [Define if you have <sys/devpoll.h> header file.]);;
+		AC_DEFINE(HAVE_SYS_DEVPOLL_H, 1, [Define if you have <sys/devpoll.h> header file.])
+                ;;
 	    kqueue)
-		AC_DEFINE(HAVE_SYS_EVENT_H, 1, [Define if you have <sys/event.h> header file.]);;
+		AC_DEFINE(HAVE_SYS_EVENT_H, 1, [Define if you have <sys/event.h> header file.])
+                ERTS_BUILD_FALLBACK_POLL=yes
+                ;;
 	    *)
 		AC_MSG_ERROR(configure.in need to be updated);;
 	esac
@@ -3582,7 +3545,7 @@ case $enable_kernel_poll-$have_kernel_poll in
 	AC_DEFINE(ERTS_ENABLE_KERNEL_POLL, 1, [Define if you have kernel poll and want to use it])
 	AC_MSG_RESULT([yes; $have_kernel_poll]);;
 esac
-AC_SUBST(ERTS_ENABLE_KERNEL_POLL)
+AC_SUBST(ERTS_BUILD_FALLBACK_POLL)
 
 AC_MSG_CHECKING([whether putenv() stores a copy of the key-value pair])
 AC_TRY_RUN([
@@ -3807,6 +3770,39 @@ dnl
 LM_FIND_EMU_CC
 
 dnl
+dnl Test whether code pointers are always short (32 bits).
+dnl
+
+AC_MSG_CHECKING([whether the code model is small])
+saved_LDFLAGS="$LDFLAGS"
+LDFLAGS="$LDFLAGS $HIPEBEAMLDFLAGS"
+AC_TRY_RUN([
+   #include <stdlib.h>
+   int main() {
+    if ((unsigned long long)&main < (1ull << 32)) {
+       exit(0);
+    }
+    exit(1);
+   }
+],
+erl_code_model_small=yes,
+erl_code_model_small=no,
+erl_code_model_small=no)
+AC_MSG_RESULT([$erl_code_model_small])
+LDFLAGS="$saved_LDFLAGS"
+case $erl_code_model_small in
+     yes)
+        AC_DEFINE(CODE_MODEL_SMALL,[1],
+	[Define if the code model is small (code fits below 2Gb)])
+	CODE_MODEL=small
+	;;
+     no)
+	CODE_MODEL=unknown
+        ;;
+esac
+AC_SUBST(CODE_MODEL)
+
+dnl
 dnl DTrace & LTTNG
 dnl
 case $DYNAMIC_TRACE_FRAMEWORK in
diff --git a/erts/doc/src/Makefile b/erts/doc/src/Makefile
index b96cbbce40..9e68373af8 100644
--- a/erts/doc/src/Makefile
+++ b/erts/doc/src/Makefile
@@ -1,7 +1,7 @@
-# 
+#
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1997-2016. All Rights Reserved.
+# Copyright Ericsson AB 1997-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -16,7 +16,7 @@
 # limitations under the License.
 #
 # %CopyrightEnd%
-# 
+#
 
 SPECS_ESRC = ../../preloaded/src/
 
@@ -66,9 +66,7 @@ XML_REF3_FILES = \
 	zlib.xml
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml \
-	part_notes_history.xml
+	part.xml
 
 XML_CHAPTER_FILES = \
 	tty.xml \
@@ -116,9 +114,9 @@ SPECS_FILES = $(XML_REF3_EFILES:%.xml=$(SPECDIR)/specs_%.xml)
 TOP_SPECS_FILE = specs.xml
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 
 KERNEL_SRC=$(ERL_TOP)/lib/kernel/src
 KERNEL_INCLUDE=$(ERL_TOP)/lib/kernel/include
@@ -146,7 +144,7 @@ $(INFO_FILE): $(INFO_FILE_SRC) $(ERL_TOP)/make/$(TARGET)/otp.mk
 	sed -e 's;%RELEASE%;$(SYSTEM_VSN);' $(INFO_FILE_SRC) > $(INFO_FILE)
 
 
-debug opt: 
+debug opt:
 
 clean:
 	rm -rf $(HTMLDIR)/*
@@ -154,7 +152,7 @@ clean:
 	rm -f $(MAN3DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
 	rm -f $(SPECDIR)/*
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 $(SPECDIR)/specs_%.xml:
 	escript $(SPECS_EXTRACTOR) $(SPECS_FLAGS) \
@@ -162,7 +160,7 @@ $(SPECDIR)/specs_%.xml:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -173,6 +171,8 @@ release_docs_spec: docs
 		"$(RELSYSDIR)/doc/html"
 	$(INSTALL_DATA) $(ERL_TOP)/erts/example/time_compat.erl \
 		"$(RELSYSDIR)/doc/html"
+	$(INSTALL_DATA) $(ERL_TOP)/lib/kernel/examples/gen_tcp_dist/src/gen_tcp_dist.erl \
+		"$(RELSYSDIR)/doc/html"
 	$(INSTALL_DATA) $(INFO_FILE) "$(RELSYSDIR)"
 	$(INSTALL_DIR) "$(RELEASE_PATH)/man/man3"
 	$(INSTALL_DATA) $(MAN3DIR)/* "$(RELEASE_PATH)/man/man3"
diff --git a/erts/doc/src/alt_dist.xml b/erts/doc/src/alt_dist.xml
index be969a8267..d3731a5391 100644
--- a/erts/doc/src/alt_dist.xml
+++ b/erts/doc/src/alt_dist.xml
@@ -47,23 +47,30 @@
     runs on. The reason the C code is not made portable, is simply
     readability.</p>
 
-  <note>
-    <p>This section was written a long time ago. Most of it is still
-      valid, but some things have changed since then.
-      Most notably is the driver interface. Some updates have been made
-      to the documentation of the driver presented here,
-      but more can be done and is planned for the future.
-      The reader is encouraged to read the
-      <seealso marker="erl_driver"><c>erl_driver</c></seealso> and
-      <seealso marker="driver_entry"><c>driver_entry</c></seealso>
-      documentation also.</p>
-  </note>
-
   <section>
     <title>Introduction</title>
     <p>To implement a new carrier for the Erlang distribution, the main
       steps are as follows.</p>
 
+      <note><p>
+	As of ERTS version 10.0 support for distribution controller
+	processes has been introduced. That is, the traffic over a
+	distribution channel can be managed by a process instead of
+	only by a port. This makes it possible to implement large
+	parts of the logic in Erlang code, and you perhaps do not
+	even need a new driver for the protocol. One example could
+	be Erlang distribution over UDP using <c>gen_udp</c> (your
+	Erlang code will of course have to take care of retranspissions,
+	etc in this example). That is, depending on what you want
+	to do you perhaps do not need to implement a driver at all
+	and can then skip the driver related sections below.
+	The <c>gen_tcp_dist</c> example described in the
+	<seealso marker="#distribution_module">Distribution
+	Module</seealso> section utilize distribution controller
+	processes and can be worth having a look at if you want to
+	use distribution controller processes.
+      </p></note>
+
     <section>
       <title>Writing an Erlang Driver</title>
       <p>First, the protocol must be available to the Erlang machine, which
@@ -152,7 +159,712 @@
   </section>
 
   <section>
+    <marker id="distribution_module"/>
+    <title>Distribution Module</title>
+    <p>
+      The distribution module expose an API that <c>net_kernel</c> call
+      in order to manage connections to other nodes. The module name
+      should have the suffix <c>_dist</c>.
+    </p>
+    <p>
+      The module needs to create some kind of listening entity (process
+      or port) and an acceptor process that accepts incoming connections
+      using the listening entity. For each connection, the module at least
+      needs to create one connection supervisor process, which also is
+      responsible for the handshake when setting up the connection, and
+      a distribution controller (process or port) responsible for
+      transport of data over the connection. The distribution controller
+      and the connection supervisor process should be linked together
+      so both of them are cleaned up when the connection is taken down.
+    </p>
+    <p>
+      Note that there need to be exactly one distribution controller
+      per connection. A process or port can only be distribution
+      controller for one connection. The registration as distribution
+      controller cannot be undone. It will stick until the distribution
+      controller terminates. The distribution controller should not
+      ignore exit signals. It is allowed to trap exits, but it should
+      then voluntarily terminate when an exit signal is received.
+    </p>
+    <p>
+      An example implementation of a distribution module can be found
+      in
+      <url href="gen_tcp_dist.erl">$ERL_TOP/lib/kernel/examples/gen_tcp_dist/src/gen_tcp_dist.erl</url>.
+      It implements the distribution over TCP/IP using the <c>gen_tcp</c>
+      API with distribution controllers implemented by processes. This
+      instead of using port distribution controllers as the ordinary TCP/IP
+      distribution uses.
+    </p>
+
+    <section>
+      <marker id="distribution_module_exported_callback_functions"/>
+      <title>Exported Callback Functions</title>
+
+      <p>
+	The following functions are mandatory:
+      </p>
+      <taglist>
+	<tag><marker id="listen"/><c>listen(Name) -></c><br/>&nbsp;&nbsp;<c>{ok, {Listen, Address, Creation}} | {error, Error} </c></tag>
+	<item>
+	  <p>
+	    <c>listen/1</c> is called once in order to listen for incoming
+	    connection requests. The call is made when the distribution is brought
+	    up. The argument <c>Name</c> is the part of the node name before
+	    the <c>@</c> sign in the full node name. It can be either an atom or a
+	    string.
+	  </p>
+	  <p>
+	    The return value consists of a <c>Listen</c> handle (which is
+	    later passed to the <seealso marker="#accept"><c>accept/1</c></seealso>
+	    callback), <c>Address</c> which is a <c>#net_address{}</c> record
+	    with information about the address for the node (the
+	    <c>#net_address{}</c> record is defined in
+	    <c>kernel/include/net_address.hrl</c>), and <c>Creation</c> which
+	    (currently) is an integer <c>1</c>, <c>2</c>, or <c>3</c>.
+	  </p>
+	  <p>
+	    If <seealso marker="erts:epmd"><c>epmd</c></seealso> is to be used 
+	    for node discovery, you typically want to use the (unfortunately
+	    undocumented) <c>erl_epmd</c> module (part of the <c>kernel</c>
+	    application) in order to register the listen port with <c>epmd</c>
+	    and retrieve <c>Creation</c> to use.
+	  </p>
+	</item>
+
+	<tag><marker id="accept"/><c>accept(Listen) -></c><br/>&nbsp;&nbsp;<c>AcceptorPid</c></tag>
+	<item>
+	  <p>
+	    <c>accept/1</c> should spawn a process that accepts connections. This
+	    process should preferably execute on <c>max</c> priority. The process
+	    identifier of this process should be returned.
+	  </p>
+	  <p>
+	    The <c>Listen</c> argument will be the same as the <c>Listen</c> handle
+	    part of the return value of the
+	    <seealso marker="#listen"><c>listen/1</c></seealso> callback above.
+	    <c>accept/1</c> is called only once when the distribution protocol is
+	    started.
+	  </p>
+	  <p>
+	    The caller of this function is a representative for <c>net_kernel</c>
+	    (this may or may not be the process registered as <c>net_kernel</c>)
+	    and is in this document identified as <c>Kernel</c>.
+	    When a connection has been accepted by the acceptor process, it needs
+	    to inform <c>Kernel</c> about the accepted connection. This is done by
+	    passing a message on the form:
+	  </p>
+	  <code type="none"><![CDATA[Kernel ! {accept, AcceptorPid, DistController, Family, Proto}]]></code>
+	  <p>
+	    <c>DistController</c> is either the process or port identifier
+	    of the distribution controller for the connection. The
+	    distribution controller should be created by the acceptor
+	    processes when a new connection is accepted. Its job is to
+	    dispatch traffic on the connection.
+	  </p>
+	  <c>Kernel</c> responds with one of the following messages:
+	  <taglist>
+	    <tag><c>{Kernel, controller, SupervisorPid}</c></tag>
+	    <item>
+	      <p>
+		The request was accepted and <c>SupervisorPid</c> is the
+		process identifier of the connection supervisor process
+		(which is created in the
+		<seealso marker="#accept_connection"><c>accept_connection/5</c></seealso>
+		callback).
+	      </p>
+	    </item>
+	    <tag><c>{Kernel, unsupported_protocol}</c></tag>
+	    <item>
+	      <p>
+		The request was rejected. This is a fatal error. The acceptor
+		process should terminate.
+	      </p>
+	    </item>
+	  </taglist>
+	  <p>
+	    When an accept sequence has been completed the acceptor process
+	    is expected to continue accepting further requests.
+	  </p>
+	</item>
+
+	<tag><marker id="accept_connection"/><c>accept_connection(AcceptorPid, DistCtrl, MyNode, Allowed, SetupTime) -></c><br/>&nbsp;&nbsp;<c>ConnectionSupervisorPid</c></tag>
+	<item>
+	  <p>
+	    <c>accept_connection/5</c> should spawn a process that will
+	    perform the Erlang distribution handshake for the connection.
+	    If the handshake successfully completes it should continue to
+	    function as a connection supervisor. This process
+	    should preferably execute on <c>max</c> priority.
+	  </p>
+	  <p>The arguments:</p>
+	  <taglist>
+	    <tag><c>AcceptorPid</c></tag>
+	    <item>
+	      <p>
+		Process identifier of the process created by the
+		<seealso marker="#accept"><c>accept/1</c></seealso>
+		callback.
+	      </p>
+	    </item>
+	    <tag><c>DistCtrl</c></tag>
+	    <item>
+	      <p>The identifier of the distribution controller identifier
+	      created by the acceptor process. To be passed along to
+	      <c>dist_util:handshake_other_started(HsData)</c>.
+	      </p>
+	    </item>
+	    <tag><c>MyNode</c></tag>
+	    <item>
+	      <p>
+		Node name of this node. To be passed along to
+	      <c>dist_util:handshake_other_started(HsData)</c>.
+	      </p>
+	    </item>
+	    <tag><c>Allowed</c></tag>
+	    <item>
+	      <p>
+		To be passed along to
+		<c>dist_util:handshake_other_started(HsData)</c>.
+	      </p>
+	    </item>
+	    <tag><c>SetupTime</c></tag>
+	    <item>
+	      <p>
+		Time used for creating a setup timer by a
+		call to <c>dist_util:start_timer(SetupTime)</c>.
+		The timer should be passed along to
+		<c>dist_util:handshake_other_started(HsData)</c>.
+	      </p>
+	    </item>
+	  </taglist>
+	  <p>
+	    The created process should provide callbacks and other
+	    information needed for the handshake in a
+	    <seealso marker="#hs_data_record"><c>#hs_data{}</c></seealso>
+	    record and call <c>dist_util:handshake_other_started(HsData)</c>
+	    with this record.
+	  </p>
+	  <p>
+	    <c>dist_util:handshake_other_started(HsData)</c> will perform
+	    the handshake and if the handshake successfully completes this
+	    process will then continue in a connection supervisor loop
+	    as long as the connection is up.
+	  </p>
+	</item>
+	
+	<tag><marker id="setup"/><c>setup(Node, Type, MyNode, LongOrShortNames, SetupTime) -></c><br/>&nbsp;&nbsp;<c>ConnectionSupervisorPid</c></tag>
+	<item>
+	  <p>
+	    <c>setup/5</c> should spawn a process that connects to
+	    <c>Node</c>. When connection has been established it should
+	    perform the Erlang distribution handshake for the connection.
+	    If the handshake successfully completes it should continue to
+	    function as a connection supervisor. This process
+	    should preferably execute on <c>max</c> priority.
+	  </p>
+	  <p>The arguments:</p>
+	  <taglist>
+	    <tag><c>Node</c></tag>
+	    <item>
+	      <p>
+		Node name of remote node. To be passed along to
+		<c>dist_util:handshake_we_started(HsData)</c>.
+	      </p>
+	    </item>
+	    <tag><c>Type</c></tag>
+	    <item>
+	      <p>
+		Connection type. To be passed along to
+		<c>dist_util:handshake_we_started(HsData)</c>.
+	      </p>
+	    </item>
+	    <tag><c>MyNode</c></tag>
+	    <item>
+	      <p>
+		Node name of this node. To be passed along to
+		<c>dist_util:handshake_we_started(HsData)</c>.
+	      </p>
+	    </item>
+	    <tag><c>LongOrShortNames</c></tag>
+	    <item>
+	      <p>
+		Either the atom <c>longnames</c> or
+		the atom <c>shortnames</c> indicating
+		whether long or short names is used.
+	      </p>
+	    </item>
+	    <tag><c>SetupTime</c></tag>
+	    <item>
+	      <p>
+		Time used for creating a setup timer by a
+		call to <c>dist_util:start_timer(SetupTime)</c>.
+		The timer should be passed along to
+		<c>dist_util:handshake_we_started(HsData)</c>.
+	      </p>
+	    </item>
+	  </taglist>
+	  <p>
+	    The caller of this function is a representative for <c>net_kernel</c>
+	    (this may or may not be the process registered as <c>net_kernel</c>)
+	    and is in this document identified as <c>Kernel</c>. 
+	  </p>
+	  <p>
+	    This function should, besides spawning the connection supervisor,
+	    also create a distribution controller. The distribution
+	    controller is either a process or a port which is responsible
+	    for dispatching traffic.
+	  </p>
+	  <p>
+	    The created process should provide callbacks and other
+	    information needed for the handshake in a
+	    <seealso marker="#hs_data_record"><c>#hs_data{}</c></seealso>
+	    record and call <c>dist_util:handshake_we_started(HsData)</c>
+	    with this record.
+	  </p>
+	  <p>
+	    <c>dist_util:handshake_we_started(HsData)</c> will perform
+	    the handshake and the handshake successfully completes this
+	    process will then continue in a connection supervisor loop
+	    as long as the connection is up.
+	  </p>
+	</item>
+	
+	<tag><marker id="close"/><c>close(Listen) -></c><br/>&nbsp;&nbsp;<c>void()</c></tag>
+	
+	<item><p>
+	  Called in order to close the <c>Listen</c> handle
+	  that originally was passed from the
+	  <seealso marker="#listen"><c>listen/1</c></seealso> callback.
+	</p></item>
+	
+	<tag><marker id="select"/><c>select(NodeName) -></c><br/>&nbsp;&nbsp;<c>boolean()</c></tag>
+	<item>
+	  <p>Return <c>true</c> if the host name part
+	  of the <c>NodeName</c> is valid for use
+	  with this protocol; otherwise, <c>false</c>.
+	  </p>
+	</item>
+	
+      </taglist>
+
+      <p>
+	There are also two optional functions that may be
+	exported:
+      </p>
+      <taglist>
+	<tag><marker id="select"/><c>setopts(Listen, Opts) -></c><br/>&nbsp;&nbsp;<c>ok | {error, Error}</c></tag>
+	<item>
+	  <p>
+	    The argument <c>Listen</c> is the handle originally passed
+	    from the
+	    <seealso marker="#listen"><c>listen/1</c></seealso> callback.
+	    The argument <c>Opts</c> is a list of options to set on future
+	    connections.
+	  </p>
+	</item>
+
+	<tag><marker id="select"/><c>getopts(Listen, Opts) -></c><br/>&nbsp;&nbsp;<c>{ok, OptionValues} | {error, Error}</c></tag>
+	<item>
+	  <p>
+	    The argument <c>Listen</c> is the handle originally passed
+	    from the
+	    <seealso marker="#listen"><c>listen/1</c></seealso> callback.
+	    The argument <c>Opts</c> is a list of options to read for future
+	    connections.
+	  </p>
+	</item>
+      </taglist>
+      
+    </section>
+    <section>
+      <marker id="hs_data_record"/>
+      <title>The #hs_data{} Record</title>
+      <p>
+	The <c>dist_util:handshake_we_started/1</c> and
+	<c>dist_util:handshake_other_started/1</c> functions
+	takes a <c>#hs_data{}</c> record as argument. There
+	are quite a lot of fields in this record that you
+	need to set. The record is defined in
+	<c>kernel/include/dist_util.hrl</c>. Not documented
+	fields should not be set, i.e., should be left as
+	<c>undefined</c>.
+      </p>
+      <p>
+	The following <c>#hs_data{}</c> record fields need
+	to be set unless otherwise stated:</p>
+      <taglist>
+	<tag><marker id="hs_data_kernel_pid"/><c>kernel_pid</c></tag>
+	<item>
+	  <p>
+	    Process identifier of the <c>Kernel</c> process. That is,
+	    the process that called either
+	    <seealso marker="#setup"><c>setup/5</c></seealso> or
+	    <seealso marker="#accept_connection"><c>accept_connection/5</c></seealso>.
+	  </p>
+	</item>
+
+	<tag><marker id="hs_data_other_node"/><c>other_node</c></tag>
+	<item>
+	  <p>Name of the other node. This field is only
+	  mandatory when this node initiates the connection.
+	  That is, when connection is set up via
+	  <seealso marker="#setup"><c>setup/5</c></seealso>.
+	  </p>
+	</item>
+
+	<tag><marker id="hs_data_this_node"/><c>this_node</c></tag>
+	<item>
+	  <p>
+	    The node name of this node.
+	  </p>
+	</item>
+
+	<tag><marker id="hs_data_socket"/><c>socket</c></tag>
+	<item>
+	  <p>
+	    The identifier of the distribution controller.
+	  </p>
+	</item>
+	
+	<tag><marker id="hs_data_timer"/><c>timer</c></tag>
+	<item>
+	  <p>
+	    The timer created using <c>dist_util:start_timer/1</c>.
+	  </p>
+	</item>
+
+	<tag><marker id="hs_data_allowed"/><c>allowed</c></tag>
+	<item>
+	  <p>Information passed as <c>Allowed</c> to
+	  <c>accept_connection/5</c>. This field is only
+	  mandatory when the remote node initiated the
+	  connection. That is, when the connection is set
+	  up via
+	  <seealso marker="#accept_connection"><c>accept_connection/5</c></seealso>.
+	  </p>
+	</item>
+      
+	<tag><marker id="hs_data_f_send"/><c>f_send</c></tag>
+	<item>
+	  <p>
+	    A fun with the following signature:
+	  </p>
+	  <code type="none"><![CDATA[fun (DistCtrlr, Data) -> ok | {error, Error}]]></code>
+	  <p>
+	    where <c>DistCtrlr</c> is the identifier of
+	    the distribution controller and <c>Data</c>
+	    is io data to pass to the other side.
+	  </p>
+	  <p>Only used during handshake phase.</p>
+	</item>
+	
+	<tag><marker id="hs_data_f_recv"/><c>f_recv</c></tag>
+	<item>
+	  <p>
+	    A fun with the following signature:
+	  </p>
+	  <code type="none"><![CDATA[fun (DistCtrlr, Length) -> {ok, Packet} | {error, Reason}]]></code>
+	  <p>
+	    where <c>DistCtrlr</c> is the identifier of the distribution
+	    controller.
+	    If <c>Length</c> is <c>0</c>, all available bytes should be
+	    returned. If <c>Length > 0</c>, exactly <c>Length</c> bytes
+	    should be returned, or an error; possibly discarding less
+	    than <c>Length</c> bytes of data when the connection is
+	    closed from the other side.
+	    It is used for passive receive of data from the
+	    other end.
+	  </p>
+	  <p>Only used during handshake phase.</p>
+	</item>
+
+	<tag><marker id="hs_data_f_setopts_pre_nodeup"/><c>f_setopts_pre_nodeup</c></tag>
+	<item>
+	  <p>
+	    A fun with the following signature:
+	  </p>
+	  <code type="none"><![CDATA[fun (DistCtrlr) -> ok | {error, Error}]]></code>
+	  <p>
+	    where <c>DistCtrlr</c> is the identifier of
+	    the distribution controller. Called just
+	    before the distribution channel is taken up
+	    for normal traffic.
+	  </p>
+	  <p>Only used during handshake phase.</p>
+	</item>
+
+	<tag><marker id="hs_data_f_setopts_post_nodeup"/><c>f_setopts_post_nodeup</c></tag>
+	<item>
+	  <p>
+	    A fun with the following signature:
+	  </p>
+	  <code type="none"><![CDATA[fun (DistCtrlr) -> ok | {error, Error}]]></code>
+	  <p>
+	    where <c>DistCtrlr</c> is the identifier of
+	    the distribution controller. Called just
+	    after distribution channel has been taken
+	    up for normal traffic.
+	  </p>
+	  <p>Only used during handshake phase.</p>
+	</item>
+
+	<tag><marker id="hs_data_f_getll"/><c>f_getll</c></tag>
+	<item>
+	  <p>
+	    A fun with the following signature:
+	  </p>
+	  <code type="none"><![CDATA[fun (DistCtrlr) -> ID]]></code>
+	  <p>
+	    where <c>DistCtrlr</c> is the identifier of
+	    the distribution controller and <c>ID</c> is
+	    the identifier of the low level entity that
+	    handles the connection (often <c>DistCtrlr</c>
+	    itself).
+	  </p>
+	  <p>Only used during handshake phase.</p>
+	</item>
+
+	<tag><marker id="hs_data_f_address"/><c>f_address</c></tag>
+	<item>
+	  <p>
+	    A fun with the following signature:
+	  </p>
+	  <code type="none"><![CDATA[fun (DistCtrlr, Node) -> NetAddress]]></code>
+	  <p>
+	    where <c>DistCtrlr</c> is the identifier of
+	    the distribution controller, <c>Node</c>
+	    is the node name of the node on the other end,
+	    and <c>NetAddress</c> is a <c>#net_address{}</c>
+	    record with information about the address
+	    for the <c>Node</c> on the other end of the
+	    connection. The <c>#net_address{}</c> record
+	    is defined in
+	    <c>kernel/include/net_address.hrl</c>.
+	  </p>
+	  <p>Only used during handshake phase.</p>
+	</item>
+
+	<tag><marker id="hs_data_mf_tick"/><c>mf_tick</c></tag>
+	<item>
+	  <p>
+	    A fun with the following signature:
+	  </p>
+	  <code type="none"><![CDATA[fun (DistCtrlr) -> void()]]></code>
+	  <p>
+	    where <c>DistCtrlr</c> is the identifier
+	    of the distribution controller. This
+	    function should send information over
+	    the connection that is not interpreted
+	    by the other end while increasing the
+	    statistics of received packets on the
+	    other end. This is usually implemented by
+	    sending an empty packet.
+	  </p>
+	  <note><p>
+	    It is of vital importance that this operation
+	    does not block the caller for a long time.
+	    This since it is called from the connection
+	    supervisor.
+	  </p></note>
+	  <p>Used when connection is up.</p>
+	</item>
+
+	<tag><marker id="hs_data_mf_getstat"/><c>mf_getstat</c></tag>
+	<item>
+	  <p>
+	    A fun with the following signature:
+	  </p>
+	  <code type="none"><![CDATA[fun (DistCtrlr) -> {ok, Received, Sent, PendSend}]]></code>
+	  <p>
+	    where <c>DistCtrlr</c> is the identifier
+	    of the distribution controller, <c>Received</c>
+	    is received packets, <c>Sent</c> is
+	    sent packets, and <c>PendSend</c> is
+	    amount of packets in queue to be sent
+	    or a <c>boolean()</c> indicating whether
+	    there are packets in queue to be sent.
+	  </p>
+	  <note><p>
+	    It is of vital importance that this operation
+	    does not block the caller for a long time.
+	    This since it is called from the connection
+	    supervisor.
+	  </p></note>
+	  <p>Used when connection is up.</p>
+	</item>
+
+	<tag><marker id="hs_data_request_type"/><c>request_type</c></tag>
+	<item>
+	  <p>
+	    The request <c>Type</c> as passed to
+	    <seealso marker="#setup"><c>setup/5</c></seealso>.
+	    This is only mandatory when the connection has
+	    been initiated by this node. That is, the connection
+	    is set up via <c>setup/5</c>.
+	  </p>
+	</item>
+
+	<tag><marker id="hs_data_mf_setopts"/><c>mf_setopts</c></tag>
+	<item>
+	  <p>
+	    A fun with the following signature:
+	  </p>
+	  <code type="none"><![CDATA[fun (DistCtrl, Opts) -> ok | {error, Error}]]></code>
+	  <p>
+	    where <c>DistCtrlr</c> is the identifier
+	    of the distribution controller and <c>Opts</c>
+	    is a list of options to set on the connection.
+	  </p>
+	  <p>This function is optional. Used when connection is up.</p>
+	</item>
+	
+	<tag><marker id="hs_data_mf_getopts"/><c>mf_getopts</c></tag>
+	<item>
+	  <p>
+	    A fun with the following signature:
+	  </p>
+	  <code type="none"><![CDATA[fun (DistCtrl, Opts) -> {ok, OptionValues} | {error, Error}]]></code>
+	  <p>
+	    where <c>DistCtrlr</c> is the identifier
+	    of the distribution controller and <c>Opts</c>
+	    is a list of options to read for the connection.
+	  </p>
+	  <p>This function is optional. Used when connection is up.</p>
+	</item>
+
+	<tag><marker id="hs_data_f_handshake_complete"/><c>f_handshake_complete</c></tag>
+	<item>
+	  <p>
+	    A fun with the following signature:
+	  </p>
+	  <code type="none"><![CDATA[fun (DistCtrlr, Node, DHandle) -> void()]]></code>
+	  <p>
+	    where <c>DistCtrlr</c> is the identifier
+	    of the distribution controller, <c>Node</c> is
+	    the node name of the node connected at the other
+	    end, and <c>DHandle</c> is a distribution handle
+	    needed by a distribution controller process when
+	    calling the following BIFs:
+	  </p>
+	  <list>
+	    <item><p><seealso marker="erts:erlang#dist_ctrl_get_data/1"><c>erlang:dist_ctrl_get_data/1</c></seealso></p></item>
+	    <item><p><seealso marker="erts:erlang#dist_ctrl_get_data_notification/1"><c>erlang:dist_ctrl_get_data_notification/1</c></seealso></p></item>
+	    <item><p><seealso marker="erts:erlang#dist_ctrl_input_handler/2"><c>erlang:dist_ctrl_input_handler/2</c></seealso></p></item>
+	    <item><p><seealso marker="erts:erlang#dist_ctrl_put_data/2"><c>erlang:dist_ctrl_put_data/2</c></seealso></p></item>
+	  </list>
+	  <p>
+	    This function is called when the handshake has
+	    completed and the distribution channel is up.
+	    The distribution controller can begin dispatching
+	    traffic over the channel. This function is optional.
+	  </p>
+	  <p>Only used during handshake phase.</p>
+	</item>
+	
+	<tag><marker id="hs_data_add_flags"/><c>add_flags</c></tag>
+	<item>
+	  <p>
+	    <seealso marker="erl_dist_protocol#dflags">Distribution flags</seealso>
+	    to add to the connection. Currently all (non obsolete) flags will
+	    automatically be enabled.
+	  </p>
+	  <p>
+	    This flag field is optional.
+	  </p>
+	</item>
+
+	<tag><marker id="hs_data_reject_flags"/><c>reject_flags</c></tag>
+	<item>
+	  <p>
+	    <seealso marker="erl_dist_protocol#dflags">Distribution flags</seealso>
+	    to reject. Currently the following distribution flags can be rejected:
+	  </p>
+	  <taglist>
+	    <tag><c>DFLAG_DIST_HDR_ATOM_CACHE</c></tag>
+	    <item>Do not use atom cache over this connection.</item>
+	    <tag><c>DFLAGS_STRICT_ORDER_DELIVERY</c></tag>
+	    <item>Do not use any features that require strict
+	    order delivery.</item>
+	  </taglist>
+	  <p>
+	    This flag field is optional.
+	  </p>
+	</item>
+
+	<tag><marker id="hs_data_require_flags"/><c>require_flags</c></tag>
+	<item>
+	  <p>
+	    Require these <seealso marker="erl_dist_protocol#dflags">distribution
+	    flags</seealso> to be used. The connection will be aborted during the
+	    handshake if the other end does not use them.
+	  </p>
+	  <p>
+	    This flag field is optional.
+	  </p>
+	</item>
+
+      </taglist>
+    </section>
+
+    <section>
+      <marker id="distribution_data_delivery"/>
+      <title>Distribution Data Delivery</title>
+      <p>
+	When using the default configuration, the data to pass
+	over a connection needs to be delivered as is
+	to the node on the receiving end in the <em>exact same
+	order</em>, with no loss of data what so ever, as sent
+	from the sending node.
+      </p>
+      <p>
+	The data delivery order can be relaxed by disabling
+	features that require strict ordering. This is done by
+	passing the <c>?DFLAGS_STRICT_ORDER_DELIVERY</c>
+	<seealso marker="erl_dist_protocol#dflags">distribution
+	flags</seealso> in the
+	<seealso marker="alt_dist#hs_data_reject_flags"><c>reject_flags</c></seealso>
+	field of the <seealso marker="#hs_data_record"><c>#hs_data{}</c></seealso>
+	record used when setting up the connection. When relaxed
+	ordering is used, only the order of signals with the same
+	sender/receiver pair has to be preserved.
+	However, note that disabling the features that require
+	strict ordering may have a negative impact on performance,
+	throughput, and/or latency. 
+      </p>
+    </section>
+
+    <section>
+      <marker id="enable_your_distribution_module"/>
+      <title>Enable Your Distribution Module</title>
+
+      <p>For <c>net_kernel</c> to find out which distribution module to use,
+      the <c>erl</c> command-line argument <c>-proto_dist</c> is used. It
+      is followed by one or more distribution module names, with suffix
+      "_dist" removed. That is, <c>gen_tcp_dist</c> as a distribution module
+      is specified as <c>-proto_dist gen_tcp</c>.</p>
+
+      <p>If no <c>epmd</c> (TCP port mapper daemon) is used, also command-line
+      option <c>-no_epmd</c> is to be specified, which makes
+      Erlang skip the <c>epmd</c> startup, both as an OS process and as an
+      Erlang ditto.</p>
+    </section>
+
+  </section>
+
+  <section>
     <title>The Driver</title>
+
+    <note>
+      <p>This section was written a long time ago. Most of it is still
+      valid, but some things have changed since then. Some updates have
+      been made to the documentation of the driver presented here,
+      but more can be done and is planned for the future.
+      The reader is encouraged to read the
+      <seealso marker="erl_driver"><c>erl_driver</c></seealso> and
+      <seealso marker="driver_entry"><c>driver_entry</c></seealso>
+      documentation also.</p>
+    </note>
+
     <p>Although Erlang drivers in general can be beyond the scope of this
       section, a brief introduction seems to be in place.</p>
 
diff --git a/erts/doc/src/driver_entry.xml b/erts/doc/src/driver_entry.xml
index 2421e0a8d9..e8c7e26457 100644
--- a/erts/doc/src/driver_entry.xml
+++ b/erts/doc/src/driver_entry.xml
@@ -196,10 +196,7 @@ typedef struct erl_drv_entry {
 			 char **rbuf, ErlDrvSizeT rlen, unsigned int *flags);
                                 /* Works mostly like 'control', a synchronous
                                    call into the driver */
-    void (*event)(ErlDrvData drv_data, ErlDrvEvent event,
-                  ErlDrvEventData event_data);
-                                /* Called when an event selected by
-                                   driver_event() has occurred */
+    void* unused_event_callback;
     int extended_marker;        /* ERL_DRV_EXTENDED_MARKER */
     int major_version;          /* ERL_DRV_EXTENDED_MAJOR_VERSION */
     int minor_version;          /* ERL_DRV_EXTENDED_MINOR_VERSION */
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index 71fe08d4e6..bd824b3405 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -762,13 +762,40 @@
           <seealso marker="erlang#process_flag_message_queue_data">
           <c>process_flag(message_queue_data, MQD)</c></seealso>.</p>
       </item>
-      <tag><c><![CDATA[+K true | false]]></c></tag>
+      <tag><marker id="+IOp"/><c>+IOp PollSets</c></tag>
       <item>
-        <p>Enables or disables the kernel poll functionality if supported by
-          the emulator. Defaults to <c><![CDATA[false]]></c> (disabled).
-          If the emulator does not support kernel poll, and flag
-          <c><![CDATA[+K]]></c> is passed to the emulator, a warning is
-          issued at startup.</p>
+        <p>Sets the number of IO pollsets to use when polling for I/O.
+          This option is only used on platforms that support concurrent
+          updates of a pollset, otherwise the same number of pollsets
+          are used as IO poll threads.
+          The default is 1.
+        </p>
+      </item>
+      <tag><marker id="+IOt"/><c>+IOt PollThreads</c></tag>
+      <item>
+        <p>Sets the number of IO poll threads to use when polling for I/O.
+          The maximum number of poll threads allowed is 1024. The default is 1.
+        </p>
+        <p>A good way to check if more IO poll threads are needed is to use
+          <seealso marker="runtime_tools:msacc">microstate accounting</seealso>
+          and see what the load of the IO poll thread is. If it is high it could
+          be a good idea to add more threads.</p>
+      </item>
+      <tag><marker id="+IOPp"/><c>+IOPp PollSetsPercentage</c></tag>
+      <item>
+        <p>Similar to <seealso marker="#+IOp"><c>+IOp</c></seealso> but uses
+          percentages to set the number of IO pollsets to create, based on the
+          number of poll threads configured. If both <c>+IOPp</c> and <c>+IOp</c>
+          are used, <c>+IOPp</c> is ignored.
+        </p>
+      </item>
+      <tag><marker id="+IOPt"/><c>+IOPt PollThreadsPercentage</c></tag>
+      <item>
+        <p>Similar to <seealso marker="#+IOt"><c>+IOt</c></seealso> but uses
+          percentages to set the number of IO poll threads to create, based on
+          the number of schedulers configured. If both <c>+IOPt</c> and
+          <c>+IOt</c> are used, <c>+IOPt</c> is ignored.
+        </p>
       </item>
       <tag><c><![CDATA[+l]]></c></tag>
       <item>
@@ -1273,25 +1300,6 @@
               <seealso marker="erlang#system_info_cpu_topology">
               <c>erlang:system_info(cpu_topology)</c></seealso>.</p>
           </item>
-          <tag><marker id="+secio"/><c>+secio true|false</c></tag>
-          <item>
-            <p>Enables or disables eager check I/O scheduling. Defaults
-              to <c>true</c>. The default was changed from <c>false</c>
-              as from ERTS 7.0. The behavior before this
-              flag was introduced corresponds to <c>+secio false</c>.</p>
-            <p>The flag effects when schedulers will check for I/O
-              operations possible to execute, and when such I/O operations
-              will execute. As the parameter name implies,
-              schedulers are more eager to check for I/O when
-              <c>true</c> is passed. This, however, also implies that
-              execution of outstanding I/O operation is not
-              prioritized to the same extent as when <c>false</c> is
-              passed.</p>
-            <p><seealso marker="erlang#system_info_eager_check_io">
-              <c>erlang:system_info(eager_check_io)</c></seealso>
-              returns the value of this parameter used when starting
-              the virtual machine.</p>
-          </item>
           <tag><marker id="+sfwi"/><c>+sfwi Interval</c></tag>
           <item>
             <p>Sets scheduler-forced wakeup interval. All run queues are
@@ -1633,9 +1641,7 @@
       <tag>The <c>.erlang</c> startup file</tag>
       <item>
         <p>When Erlang/OTP is started, the system searches for a file named
-          <c>.erlang</c> in the directory where Erlang/OTP is started. If not
-          found, the user's home directory is searched for an <c>.erlang</c>
-          file.</p>
+        <c>.erlang</c> in the user's home directory.</p>
         <p>If an <c>.erlang</c> file is found, it is assumed to contain valid
           Erlang expressions. These expressions are evaluated as if they were
           input to the shell.</p>
diff --git a/erts/doc/src/erl_dist_protocol.xml b/erts/doc/src/erl_dist_protocol.xml
index 610351db6c..a78b13aaa4 100644
--- a/erts/doc/src/erl_dist_protocol.xml
+++ b/erts/doc/src/erl_dist_protocol.xml
@@ -829,7 +829,31 @@ DiB == gen_digest(ChA, ICA)?
         <item>
           <p>The node understand UTF-8 encoded atoms.</p>
         </item>
+        <tag><c>-define(DFLAG_MAP_TAG, 16#20000).</c></tag>
+        <item>
+          <p>The node understand the map tag.</p>
+        </item>
+        <tag><c>-define(DFLAG_BIG_CREATION, 16#40000).</c></tag>
+        <item>
+          <p>The node understand big node creation.</p>
+        </item>
+        <tag><c>-define(DFLAG_SEND_SENDER, 16#80000).</c></tag>
+        <item>
+          <p>
+	    Use the <c>SEND_SENDER</c>
+	    <seealso marker="#control_message">control message</seealso>
+	    instead of the <c>SEND</c> control message and use the
+	    <c>SEND_SENDER_TT</c> control message instead
+	    of the <c>SEND_TT</c> control message.
+	  </p>
+        </item>
       </taglist>
+      <p>
+	There are also a collection of <c>DFLAG</c>s bitwise or:ed
+	together in the <c>DFLAGS_STRICT_ORDER_DELIVERY</c> macro.
+	These flags corresponds to features that require strict
+	ordering of data over distribution channels.
+      </p>
     </section>
   </section>
 
@@ -922,6 +946,7 @@ DiB == gen_digest(ChA, ICA)?
       </item>
     </taglist>
 
+    <marker id="control_message"/>
     <p>The <c>ControlMessage</c> is a tuple, where the first element indicates
       which distributed operation it encodes:</p>
 
@@ -1028,4 +1053,49 @@ DiB == gen_digest(ChA, ICA)?
       </item>
     </taglist>
   </section>
+
+  <section>
+    <title>New Ctrlmessages for Erlang/OTP 21</title>
+    <taglist>
+      <tag><c>SEND_SENDER</c></tag>
+      <item>
+        <p><c>{22, FromPid, ToPid}</c></p>
+        <p>Followed by <c>Message</c>.</p>
+	<p>
+	  This control messages replace the <c>SEND</c> control
+	  message and will be sent when the distribution flag
+	  <seealso marker="erl_dist_protocol#dflags"><c>DFLAG_SEND_SENDER</c></seealso>
+	  has been negotiated in the connection setup handshake.
+	</p>
+	<note><p>
+	  Messages encoded before the connection has
+	  been set up may still use the <c>SEND</c> control
+	  message. However, once a <c>SEND_SENDER</c> or <c>SEND_SENDER_TT</c>
+	  control message has been sent, no more <c>SEND</c>
+	  control messages will be sent in the same direction
+	  on the connection.
+	</p></note>
+      </item>
+      <tag><c>SEND_SENDER_TT</c></tag>
+      <item>
+        <p><c>{23, FromPid, ToPid, TraceToken}</c></p>
+        <p>Followed by <c>Message</c>.</p>
+	<p>
+	  This control messages replace the <c>SEND_TT</c> control
+	  message and will be sent when the distribution flag
+	  <seealso marker="erl_dist_protocol#dflags"><c>DFLAG_SEND_SENDER</c></seealso>
+	  has been negotiated in the connection setup handshake.
+	</p>
+	<note><p>
+	  Messages encoded before the connection has
+	  been set up may still use the <c>SEND_TT</c> control
+	  message. However, once a <c>SEND_SENDER</c> or <c>SEND_SENDER_TT</c>
+	  control message has been sent, no more <c>SEND_TT</c>
+	  control messages will be sent in the same direction
+	  on the connection.
+	</p></note>
+      </item>
+    </taglist>
+  </section>
+
 </chapter>
diff --git a/erts/doc/src/erl_driver.xml b/erts/doc/src/erl_driver.xml
index 5705100ab2..ca9d458e1e 100644
--- a/erts/doc/src/erl_driver.xml
+++ b/erts/doc/src/erl_driver.xml
@@ -157,7 +157,7 @@
     </note>
 
     <p>Most functions in this API are <em>not</em> thread-safe, that is,
-      they <em>cannot</em> be called from any thread. Functions
+      they <em>cannot</em> be called from arbitrary threads. Functions
       that are not documented as thread-safe can only be called from
       driver callbacks or function calls descending from a driver
       callback call. Notice that driver callbacks can be called from
diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml
index 5a69bed34c..419e41693e 100644
--- a/erts/doc/src/erl_nif.xml
+++ b/erts/doc/src/erl_nif.xml
@@ -206,7 +206,7 @@ ok
           <seealso marker="#enif_make_resource">
           <c>enif_make_resource</c></seealso>.
           The term returned by <c>enif_make_resource</c> is opaque in nature.
-          It can be stored and passed between processes on the same node, but
+          It can be stored and passed between processes, but
           the only real end usage is to pass it back as an argument to a NIF.
           The NIF can then call <seealso marker="#enif_get_resource">
           <c>enif_get_resource</c></seealso> and get back a pointer to the
@@ -344,6 +344,81 @@ return term;</code>
             <c>enif_convert_time_unit()</c></seealso></item>
       </list>
       </item>
+      <tag><marker id="enif_ioq"/>I/O Queues</tag>
+      <item>
+        <p>The Erlang nif library contains function for easily working
+          with I/O vectors as used by the unix system call <c>writev</c>.
+          The I/O Queue is not thread safe, so some other synchronization
+          mechanism has to be used.</p>
+          <list type="bulleted">
+            <item><seealso marker="#SysIOVec">
+            <c>SysIOVec</c></seealso></item>
+            <item><seealso marker="#ErlNifIOVec">
+            <c>ErlNifIOVec</c></seealso></item>
+            <item><seealso marker="#enif_ioq_create">
+            <c>enif_ioq_create()</c></seealso></item>
+            <item><seealso marker="#enif_ioq_destroy">
+            <c>enif_ioq_destroy()</c></seealso></item>
+            <item><seealso marker="#enif_ioq_enq_binary">
+            <c>enif_ioq_enq_binary()</c></seealso></item>
+            <item><seealso marker="#enif_ioq_enqv">
+            <c>enif_ioq_enqv()</c></seealso></item>
+            <item><seealso marker="#enif_ioq_deq">
+            <c>enif_ioq_deq()</c></seealso></item>
+            <item><seealso marker="#enif_ioq_peek">
+            <c>enif_ioq_peek()</c></seealso></item>
+            <item><seealso marker="#enif_inspect_iovec">
+            <c>enif_inspect_iovec()</c></seealso></item>
+            <item><seealso marker="#enif_free_iovec">
+            <c>enif_free_iovec()</c></seealso></item>
+          </list>
+        <p>Typical usage when writing to a file descriptor looks like this:</p>
+          <code type="none"><![CDATA[
+int writeiovec(ErlNifEnv *env, ERL_NIF_TERM term, ERL_NIF_TERM *tail,
+               ErlNifIOQueue *q, int fd) {
+
+    ErlNifIOVec vec, *iovec = &vec;
+    SysIOVec *sysiovec;
+    int saved_errno;
+    int iovcnt, n;
+
+    if (!enif_inspect_iovec(env, 64, term, tail, &iovec))
+        return -2;
+
+    if (enif_ioq_size(q) > 0) {
+        /* If the I/O queue contains data we enqueue the iovec and
+           then peek the data to write out of the queue. */
+        if (!enif_ioq_enqv(q, iovec, 0))
+            return -3;
+
+        sysiovec = enif_ioq_peek(q, &iovcnt);
+    } else {
+        /* If the I/O queue is empty we skip the trip through it. */
+        iovcnt = iovec->iovcnt;
+        sysiovec = iovec->iov;
+    }
+
+    /* Attempt to write the data */
+    n = writev(fd, sysiovec, iovcnt);
+    saved_errno = errno;
+
+    if (enif_ioq_size(q) == 0) {
+        /* If the I/O queue was initially empty we enqueue any
+           remaining data into the queue for writing later. */
+        if (n >= 0 && !enif_ioq_enqv(q, iovec, n))
+            return -3;
+    } else {
+        /* Dequeue any data that was written from the queue. */
+        if (n > 0 && !enif_ioq_deq(q, n, NULL))
+            return -4;
+    }
+
+    /* return n, which is either number of bytes written or -1 if
+       some error happened */
+    errno = saved_errno;
+    return n;
+}]]></code>
+      </item>
       <tag><marker id="lengthy_work"/>Long-running NIFs</tag>
       <item>
         <p>As mentioned in the <seealso marker="#WARNING">warning</seealso> text
@@ -837,6 +912,36 @@ typedef enum {
           </item>
         </taglist>
       </item>
+      <tag><marker id="SysIOVec"/><c>SysIOVec</c></tag>
+      <item>
+        <p>A system I/O vector, as used by <c>writev</c> on
+          Unix and <c>WSASend</c> on Win32. It is used in
+          <c>ErlNifIOVec</c> and by
+          <seealso marker="#enif_ioq_peek"><c>enif_ioq_peek</c></seealso>.</p>
+      </item>
+      <tag><marker id="ErlNifIOVec"/><c>ErlNifIOVec</c></tag>
+      <item>
+        <code type="none">
+typedef struct {
+  int iovcnt;
+  size_t size;
+  SysIOVec* iov;
+} ErlNifIOVec;</code>
+        <p>An I/O vector containing <c>iovcnt</c> <c>SysIOVec</c>s
+          pointing to the data. It is used by
+          <seealso marker="#enif_inspect_iovec">
+            <c>enif_inspect_iovec</c></seealso> and
+          <seealso marker="#enif_ioq_enqv">
+            <c>enif_ioq_enqv</c></seealso>.</p>
+      </item>
+      <tag><marker id="ErlNifIOQueueOpts"/><c>ErlNifIOQueueOpts</c></tag>
+      <item>
+        Options to configure a <c>ErlNifIOQueue</c>.
+        <taglist>
+          <tag>ERL_NIF_IOQ_NORMAL</tag>
+          <item><p>Create a normal I/O Queue</p></item>
+        </taglist>
+      </item>
     </taglist>
   </section>
 
@@ -1143,6 +1248,31 @@ typedef enum {
     </func>
 
     <func>
+      <name><ret>void</ret>
+        <nametext>enif_free_iovec(ErlNifIOvec* iov)</nametext></name>
+      <fsummary>Free an ErlIOVec</fsummary>
+      <desc>
+        <p>Frees an io vector returned from
+          <seealso marker="#enif_inspect_iovec">
+            <c>enif_inspect_iovec</c></seealso>.
+          This is needed only if a <c>NULL</c> environment is passed to
+          <seealso marker="#enif_inspect_iovec">
+          <c>enif_inspect_iovec</c></seealso>.</p>
+          <code type="none"><![CDATA[
+ErlNifIOVec *iovec = NULL;
+size_t max_elements = 128;
+ERL_NIF_TERM tail;
+if (!enif_inspect_iovec(NULL, max_elements, term, &tail, iovec))
+  return 0;
+
+// Do things with the iovec
+
+/* Free the iovector, possibly in another thread or nif function call */
+enif_free_iovec(iovec);]]></code>
+      </desc>
+    </func>
+
+    <func>
       <name><ret>int</ret><nametext>enif_get_atom(ErlNifEnv* env, ERL_NIF_TERM
         term, char* buf, unsigned size, ErlNifCharEncoding encode)</nametext>
       </name>
@@ -1449,6 +1579,127 @@ typedef enum {
     </func>
 
     <func>
+      <name><ret>int</ret><nametext>enif_inspect_iovec(ErlNifEnv*
+        env, size_t max_elements, ERL_NIF_TERM iovec_term, ERL_NIF_TERM* tail,
+        ErlNifIOVec** iovec)</nametext></name>
+      <fsummary>Inspect a list of binaries as an ErlNifIOVec.</fsummary>
+      <desc>
+        <p>Fills <c>iovec</c> with the list of binaries provided in
+           <c>iovec_term</c>. The number of elements handled in the call is
+           limited to <c>max_elements</c>, and <c>tail</c> is set to the
+           remainder of the list. Note that the output may be longer than
+           <c>max_elements</c> on some platforms.
+        </p>
+        <p>To create a list of binaries from an arbitrary iolist, use
+           <seealso marker="erts:erlang#iolist_to_iovec/1">
+           <c>erlang:iolist_to_iovec/1</c></seealso>.</p>
+        <p>When calling this function, <c>iovec</c> should contain a pointer to
+           <c>NULL</c> or a ErlNifIOVec structure that should be used if
+           possible. e.g.
+        </p>
+        <code type="none">
+/* Don't use a pre-allocated structure */
+ErlNifIOVec *iovec = NULL;
+enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
+
+/* Use a stack-allocated vector as an optimization for vectors with few elements */
+ErlNifIOVec vec, *iovec = &amp;vec;
+enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
+</code>
+        <p>The contents of the <c>iovec</c> is valid until the called nif
+           function returns. If the <c>iovec</c> should be valid after the nif
+           call returns, it is possible to call this function with a
+           <c>NULL</c> environment. If no environment is given the <c>iovec</c>
+           owns the data in the vector and it has to be explicitly freed using
+           <seealso marker="#enif_free_iovec"><c>enif_free_iovec</c>
+           </seealso>.</p>
+        <p>Returns <c>true</c> on success, or <c>false</c> if <c>iovec_term</c>
+           not an iovec.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name><ret>ErlNifIOQueue *</ret>
+      <nametext>enif_ioq_create(ErlNifIOQueueOpts opts)</nametext></name>
+      <fsummary>Create a new IO Queue</fsummary>
+      <desc>
+        <p>Create a new I/O Queue that can be used to store data.
+          <c>opts</c> has to be set to <c>ERL_NIF_IOQ_NORMAL</c>.
+        </p>
+      </desc>
+    </func>
+
+    <func>
+      <name><ret>void</ret>
+      <nametext>enif_ioq_destroy(ErlNifIOQueue *q)</nametext></name>
+      <fsummary>Destroy an IO Queue and free it's content</fsummary>
+      <desc>
+        <p>Destroy the I/O queue and free all of it's contents</p>
+      </desc>
+    </func>
+
+    <func>
+      <name><ret>int</ret>
+      <nametext>enif_ioq_deq(ErlNifIOQueue *q, size_t count, size_t *size)</nametext></name>
+      <fsummary>Dequeue count bytes from the IO Queue</fsummary>
+      <desc>
+        <p>Dequeue <c>count</c> bytes from the I/O queue.
+          If <c>size</c> is not <c>NULL</c>, the new size of the queue
+          is placed there.</p>
+        <p>Returns <c>true</c> on success, or <c>false</c> if the I/O does
+          not contain <c>count</c> bytes. On failure the queue is left un-altered.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name><ret>int</ret>
+      <nametext>enif_ioq_enq_binary(ErlNifIOQueue *q, ErlNifBinary *bin, size_t skip)</nametext></name>
+      <fsummary>Enqueue the binary into the IO Queue</fsummary>
+      <desc>
+        <p>Enqueue the <c>bin</c> into <c>q</c> skipping the first <c>skip</c> bytes.</p>
+        <p>Returns <c>true</c> on success, or <c>false</c> if <c>skip</c> is greater
+        than the size of <c>bin</c>. Any ownership of the binary data is transferred
+        to the queue and <c>bin</c> is to be considered read-only for the rest of the NIF
+        call and then as released.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name><ret>int</ret>
+      <nametext>enif_ioq_enqv(ErlNifIOQueue *q, ErlNifIOVec *iovec, size_t skip)</nametext></name>
+      <fsummary>Enqueue the iovec into the IO Queue</fsummary>
+      <desc>
+        <p>Enqueue the <c>iovec</c> into <c>q</c> skipping the first <c>skip</c> bytes.</p>
+        <p>Returns <c>true</c> on success, or <c>false</c> if <c>skip</c> is greater
+        than the size of <c>iovec</c>.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name><ret>SysIOVec *</ret>
+      <nametext>enif_ioq_peek(ErlNifIOQueue *q, int *iovlen)</nametext></name>
+      <fsummary>Peek inside the IO Queue</fsummary>
+      <desc>
+        <p>Get the I/O queue as a pointer to an array of <c>SysIOVec</c>s.
+          It also returns the number of elements in <c>iovlen</c>.
+          This is the only way to get data out of the queue.</p>
+        <p>Nothing is removed from the queue by this function, that must be done
+          with <seealso marker="#enif_ioq_deq"><c>enif_ioq_deq</c></seealso>.</p>
+         <p>The returned array is suitable to use with the Unix system
+          call <c>writev</c>.</p>
+      </desc>
+    </func>
+
+    <func>
+      <name><ret>size_t</ret>
+      <nametext>enif_ioq_size(ErlNifIOQueue *q)</nametext></name>
+      <fsummary>Get the current size of the IO Queue</fsummary>
+      <desc>
+        <p>Get the size of <c>q</c>.</p>
+      </desc>
+    </func>
+
+    <func>
       <name><ret>int</ret>
         <nametext>enif_is_atom(ErlNifEnv* env, ERL_NIF_TERM term)</nametext>
       </name>
@@ -1952,10 +2203,33 @@ typedef enum {
           details, see the <seealso marker="#enif_resource_example">example of
           creating and returning a resource object</seealso> in the User's
           Guide.</p>
-        <p>Notice that the only defined behavior of using a resource term in
-          an Erlang program is to store it and send it between processes on the
-          same node. Other operations, such as matching or
-          <c>term_to_binary</c>, have unpredictable (but harmless) results.</p>
+	<note>
+	  <p>Since ERTS 9.0 (OTP-20.0), resource terms have a defined behavior
+	  when compared and serialized through <c>term_to_binary</c> or passed
+	  between nodes.</p>
+	  <list type="bulleted">
+	    <item>
+	      <p>Two resource terms will compare equal iff they
+	      would yield the same resource object pointer when passed to
+	      <seealso marker="#enif_get_resource"><c>enif_get_resource</c></seealso>.</p>
+	    </item>
+	    <item>
+	      <p>A resoure term can be serialized with <c>term_to_binary</c> and later
+	      be fully recreated if the resource object is still alive when
+	      <c>binary_to_term</c> is called. A <em>stale</em> resource term will be
+	      returned from <c>binary_to_term</c> if the resource object has
+	      been deallocated. <seealso marker="#enif_get_resource"><c>enif_get_resource</c></seealso>
+	      will return false for stale resource terms.</p>
+	      <p>The same principles of serialization apply when passing
+	      resource terms in messages to remote nodes and back again. A
+	      resource term will act stale on all nodes except the node where
+	      its resource object is still alive in memory.</p>
+	    </item>
+	  </list>
+	  <p>Before ERTS 9.0 (OTP-20.0), all resource terms did
+	  compare equal to each other and to empty binaries (<c>&lt;&lt;&gt;&gt;</c>).
+	  If serialized, they would be recreated as plain empty binaries.</p>
+	</note>
       </desc>
     </func>
 
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 5664609f60..d0588fe3c1 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -60,6 +60,14 @@
       </desc>
     </datatype>
     <datatype>
+      <name>iovec()</name>
+      <desc>
+        <p>A list of binaries. This datatype is useful to use
+          together with <seealso marker="erl_nif#enif_inspect_iovec">
+          <c>enif_inspect_iovec</c></seealso>.</p>
+      </desc>
+    </datatype>
+    <datatype>
       <name name="message_queue_data"></name>
       <desc>
         <p>See <seealso marker="#process_flag_message_queue_data">
@@ -181,6 +189,14 @@
 	</taglist>
       </desc>
     </datatype>
+
+    <datatype>
+      <name name="dist_handle"></name>
+      <desc>
+        <p>An opaque handle identifing a distribution channel.</p>
+      </desc>
+    </datatype>
+
   </datatypes>
 
   <funcs>
@@ -424,6 +440,16 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
           <seealso marker="#binary_to_atom/2"><c>binary_to_atom/2</c></seealso>,
           but the atom must exist.</p>
         <p>Failure: <c>badarg</c> if the atom does not exist.</p>
+	<note>
+	  <p>Note that the compiler may optimize away atoms. For
+	  example, the compiler will rewrite
+	  <c>atom_to_list(some_atom)</c> to <c>"some_atom"</c>. If
+	  that expression is the only mention of the atom
+	  <c>some_atom</c> in the containing module, the atom will not
+	  be created when the module is loaded, and a subsequent call
+	  to <c>binary_to_existing_atom(&lt;&lt;"some_atom"&gt;&gt;, utf8)</c>
+	  will fail.</p>
+	</note>
       </desc>
     </func>
 
@@ -1215,6 +1241,141 @@ end</code>
     </func>
 
     <func>
+      <name name="dist_ctrl_get_data" arity="1"/>
+      <fsummary>Get distribution channel data to pass to another node.</fsummary>
+      <desc>
+        <p>
+	  Get distribution channel data from the local node that is
+	  to be passed to the remote node. The distribution channel
+	  is identified by <c><anno>DHandle</anno></c>. If no data
+	  is available, the atom <c>none</c> is returned. One
+	  can request to be informed by a message when more
+	  data is available by calling
+	  <seealso marker="erlang#dist_ctrl_get_data_notification/1"><c>erlang:dist_ctrl_get_data_notification(DHandle)</c></seealso>.
+	</p>
+	<note><p>
+	  Only the process registered as distribution
+	  controller for the distribution channel identified by
+	  <c><anno>DHandle</anno></c> is allowed to call this
+	  function.
+	</p></note>
+	<p>
+	  This function is used when implementing an alternative
+	  distribution carrier using processes as distribution
+	  controllers. <c><anno>DHandle</anno></c> is retrived
+	  via the callback
+	  <seealso marker="erts:alt_dist#hs_data_f_handshake_complete"><c>f_handshake_complete</c></seealso>.
+	  More information can be found in the documentation of
+	  <seealso marker="erts:alt_dist#distribution_module">ERTS
+	  User's Guide ➜ How to implement an Alternative Carrier
+	  for the Erlang Distribution ➜ Distribution Module</seealso>.
+	</p>
+      </desc>
+    </func>
+
+    <func>
+      <name name="dist_ctrl_get_data_notification" arity="1"/>
+      <fsummary>Request notification about available outgoing distribution channel data.</fsummary>
+      <desc>
+        <p>
+	  Request notification when more data is available to
+	  fetch using
+	  <seealso marker="erlang#dist_ctrl_get_data/1"><c>erlang:dist_ctrl_get_data(DHandle)</c></seealso>
+	  for the distribution channel identified by
+	  <c><anno>DHandle</anno></c>. When more data is present,
+	  the caller will be sent the message <c>dist_data</c>.
+	  Once a <c>dist_data</c> messages has been sent, no
+	  more <c>dist_data</c> messages will be sent until
+	  the <c>dist_ctrl_get_data_notification/1</c> function has been called
+	  again.
+	</p>
+	<note><p>
+	  Only the process registered as distribution
+	  controller for the distribution channel identified by
+	  <c><anno>DHandle</anno></c> is allowed to call this
+	  function.
+	</p></note>
+	<p>
+	  This function is used when implementing an alternative
+	  distribution carrier using processes as distribution
+	  controllers. <c><anno>DHandle</anno></c> is retrived
+	  via the callback
+	  <seealso marker="erts:alt_dist#hs_data_f_handshake_complete"><c>f_handshake_complete</c></seealso>.
+	  More information can be found in the documentation of
+	  <seealso marker="erts:alt_dist#distribution_module">ERTS
+	  User's Guide ➜ How to implement an Alternative Carrier
+	  for the Erlang Distribution ➜ Distribution Module</seealso>.
+	</p>
+      </desc>
+    </func>
+
+    <func>
+      <name name="dist_ctrl_input_handler" arity="2"/>
+      <fsummary>Register distribution channel input handler process.</fsummary>
+      <desc>
+        <p>
+	  Register an alternate input handler process for the
+	  distribution channel identified by <c><anno>DHandle</anno></c>.
+	  Once this function has been called, <c><anno>InputHandler</anno></c>
+	  is the only process allowed to call
+	  <seealso marker="erlang#dist_ctrl_put_data/2"><c>erlang:dist_ctrl_put_data(DHandle, Data)</c></seealso>
+	  with the <c><anno>DHandle</anno></c> identifing this distribution
+	  channel.
+	</p>
+	<note><p>
+	  Only the process registered as distribution
+	  controller for the distribution channel identified by
+	  <c><anno>DHandle</anno></c> is allowed to call this
+	  function.
+	</p></note>
+	<p>
+	  This function is used when implementing an alternative
+	  distribution carrier using processes as distribution
+	  controllers. <c><anno>DHandle</anno></c> is retrived
+	  via the callback
+	  <seealso marker="erts:alt_dist#hs_data_f_handshake_complete"><c>f_handshake_complete</c></seealso>.
+	  More information can be found in the documentation of
+	  <seealso marker="erts:alt_dist#distribution_module">ERTS
+	  User's Guide ➜ How to implement an Alternative Carrier
+	  for the Erlang Distribution ➜ Distribution Module</seealso>.
+	</p>
+      </desc>
+    </func>
+
+    <func>
+      <name name="dist_ctrl_put_data" arity="2"/>
+      <fsummary>Pass data into the VM from a distribution channel.</fsummary>
+      <desc>
+        <p>
+	  Deliver distribution channel data from a remote node to the
+	  local node.
+	</p>
+	<note><p>
+	  Only the process registered as distribution
+	  controller for the distribution channel identified by
+	  <c><anno>DHandle</anno></c> is allowed to call this
+	  function unless an alternate input handler process
+	  has been registered using
+	  <seealso marker="erlang#dist_ctrl_input_handler/2"><c>erlang:dist_ctrl_input_handler(DHandle, InputHandler)</c></seealso>.
+	  If an alternate input handler has been registered, only
+	  the registered input handler process is allowed to call
+	  this function.
+	</p></note>
+	<p>
+	  This function is used when implementing an alternative
+	  distribution carrier using processes as distribution
+	  controllers. <c><anno>DHandle</anno></c> is retrived
+	  via the callback
+	  <seealso marker="erts:alt_dist#hs_data_f_handshake_complete"><c>f_handshake_complete</c></seealso>.
+	  More information can be found in the documentation of
+	  <seealso marker="erts:alt_dist#distribution_module">ERTS
+	  User's Guide ➜ How to implement an Alternative Carrier
+	  for the Erlang Distribution ➜ Distribution Module</seealso>.
+	</p>
+      </desc>
+    </func>
+
+    <func>
       <name name="element" arity="2"/>
       <fsummary>Return the Nth element of a tuple.</fsummary>
       <type_desc variable="N">1..tuple_size(<anno>Tuple</anno>)</type_desc>
@@ -1868,6 +2029,18 @@ helper() ->
             where the exception occurred or the function was called.
           </item>
         </taglist>
+        <warning><p>Developers should rely on stacktrace entries only for
+          debugging purposes.</p>
+          <p>The VM performs tail call optimization, which
+          does not add new entries to the stacktrace, and also limits stacktraces
+          to a certain depth. Furthermore, compiler options, optimizations and
+          future changes may add or remove stacktrace entries, causing any code
+          that expects the stacktrace to be in a certain order or contain specific
+          items to fail.</p>
+          <p>The only exception to this rule is <c>error:undef</c> which
+          guarantees to include the <anno>Module</anno>, <anno>Function</anno> and <anno>Arity</anno>
+          of the attempted function as the first stacktrace entry.</p>
+        </warning>	
         <p>See also
           <seealso marker="#error/1"><c>error/1</c></seealso> and
           <seealso marker="#error/2"><c>error/2</c></seealso>.</p>
@@ -2128,6 +2301,15 @@ os_prompt%</pre>
     </func>
 
     <func>
+      <name name="iolist_to_iovec" arity="1"/>
+      <fsummary>Converts an iolist to a iovec.</fsummary>
+      <desc>
+        <p>Returns an iovec that is made from the integers and binaries in
+          <c><anno>IoListOrBinary</anno></c>.</p>
+      </desc>
+    </func>
+
+    <func>
       <name name="is_alive" arity="0"/>
       <fsummary>Check whether the local node is alive.</fsummary>
       <desc>
@@ -2461,6 +2643,15 @@ os_prompt%</pre>
           but only if there already exists such atom.</p>
         <p>Failure: <c>badarg</c> if there does not already exist an atom
           whose text representation is <c><anno>String</anno></c>.</p>
+	<note>
+	  <p>Note that the compiler may optimize away atoms. For
+	  example, the compiler will rewrite
+	  <c>atom_to_list(some_atom)</c> to <c>"some_atom"</c>. If
+	  that expression is the only mention of the atom
+	  <c>some_atom</c> in the containing module, the atom will not
+	  be created when the module is loaded, and a subsequent call
+	  to <c>list_to_existing_atom("some_atom")</c> will fail.</p>
+	</note>
       </desc>
     </func>
 
@@ -3647,6 +3838,12 @@ RealSystem = system + MissedSystem</code>
           </item>
           <tag><c>{env, <anno>Env</anno>}</c></tag>
           <item>
+	    <p>
+	      Types:<br/>
+	      &nbsp;&nbsp;<c><anno>Name</anno> = </c><seealso marker="kernel:os#type-env_var_name"><c>os:env_var_name()</c></seealso><br/>
+	      &nbsp;&nbsp;<c><anno>Val</anno> = </c><seealso marker="kernel:os#type-env_var_value"><c>os:env_var_value()</c></seealso><c> | false</c><br/>
+	      &nbsp;&nbsp;<c>Env = [{<anno>Name</anno>, <anno>Val</anno>}]</c>
+	    </p>
             <p>Only valid for <c>{spawn, <anno>Command</anno>}</c>, and
               <c>{spawn_executable, <anno>FileName</anno>}</c>.
               The environment of the started process is extended using
@@ -3661,7 +3858,13 @@ RealSystem = system + MissedSystem</code>
               exception is <c><anno>Val</anno></c> being the atom
               <c>false</c> (in analogy with
               <seealso marker="kernel:os#getenv/1"><c>os:getenv/1</c></seealso>,
-              which removes the environment variable.</p>
+              which removes the environment variable.
+	    </p>
+	    <p>
+	      For information about encoding requirements, see documentation
+	      of the types for <c><anno>Name</anno></c> and
+	      <c><anno>Val</anno></c>.
+	    </p>
           </item>
           <tag><c>{args, [ string() | binary() ]}</c></tag>
           <item>
@@ -6296,17 +6499,24 @@ lists:map(
         <p><c><anno>MSAcc_Thread_Type</anno></c>s:</p>
         <taglist>
           <tag><c>scheduler</c></tag>
-          <item>The main execution threads that do most of the work.</item>
+          <item>The main execution threads that do most of the work. See
+            <seealso marker="erts:erl#+S">erl +S</seealso> for more details.</item>
           <tag><c>dirty_cpu_scheduler</c></tag>
-          <item>The threads for long running cpu intensive work.</item>
+          <item>The threads for long running cpu intensive work. See
+            <seealso marker="erts:erl#+SDcpu">erl +SDcpu</seealso> for more details.</item>
           <tag><c>dirty_io_scheduler</c></tag>
-          <item>The threads for long running I/O work.</item>
+          <item>The threads for long running I/O work. See
+            <seealso marker="erts:erl#+SDio">erl +SDio</seealso> for more details.</item>
           <tag><c>async</c></tag>
           <item>Async threads are used by various linked-in drivers (mainly the
-            file drivers) do offload non-CPU intensive work.</item>
+            file drivers) do offload non-CPU intensive work. See
+            <seealso marker="erts:erl#+async_thread_pool_size">erl +A</seealso> for more details.</item>
           <tag><c>aux</c></tag>
           <item>Takes care of any work that is not
             specifically assigned to a scheduler.</item>
+          <tag><c>poll</c></tag>
+          <item>Does the IO polling for the emulator. See
+            <seealso marker="erts:erl#+IOt">erl +IOt</seealso> for more details.</item>
         </taglist>
         <p>The following <c><anno>MSAcc_Thread_State</anno></c>s are available.
           All states are exclusive, meaning that a thread cannot be in two
@@ -7863,15 +8073,6 @@ ok
               The return value will always be <c>false</c>, as the
               <c>elib_malloc</c> allocator has been removed.</p>
           </item>
-          <tag><marker id="system_info_eager_check_io"/>
-            <c>eager_check_io</c></tag>
-          <item>
-            <p>Returns the value of command-line flag
-              <seealso marker="erl#+secio"><c>+secio</c></seealso> in
-              <c>erl(1)</c>, which is either <c>true</c> or <c>false</c>.
-              For information about the different values, see the
-              documentation of the command-line flag.</p>
-          </item>
           <tag><c>ets_limit</c></tag>
           <item>
             <p>Returns the maximum number of ETS tables allowed. This
diff --git a/erts/doc/src/erts_alloc.xml b/erts/doc/src/erts_alloc.xml
index d3f725ef99..580780e73b 100644
--- a/erts/doc/src/erts_alloc.xml
+++ b/erts/doc/src/erts_alloc.xml
@@ -87,9 +87,9 @@
         the number of system calls made.</item>
     </taglist>
 
-    <p><c>sys_alloc</c> and <c>literal_alloc</c> are always enabled and
-      cannot be disabled. <c>exec_alloc</c> is only available if it is needed
-      and cannot be disabled. <c>mseg_alloc</c> is always enabled if it is
+    <p><c>sys_alloc</c>, <c>literal_alloc</c> and <c>temp_alloc</c> are always
+      enabled and cannot be disabled. <c>exec_alloc</c> is only available if it
+      is needed and cannot be disabled. <c>mseg_alloc</c> is always enabled if it is
       available and an allocator that uses it is enabled. All other
       allocators can be <seealso marker="#M_e">enabled or disabled</seealso>.
       By default all allocators are enabled.
diff --git a/erts/doc/src/fascicules.xml b/erts/doc/src/fascicules.xml
deleted file mode 100644
index 1c371bd9c8..0000000000
--- a/erts/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    ERTS User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    ERTS Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml
index 76aab90e9d..25b72ce774 100644
--- a/erts/doc/src/notes.xml
+++ b/erts/doc/src/notes.xml
@@ -31,6 +31,269 @@
   </header>
   <p>This document describes the changes made to the ERTS application.</p>
 
+<section><title>Erts 9.1.3</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p>Added zlib:set_controlling_process/2 to move a
+	    zstream() between processes.</p>
+          <p>
+	    Own Id: OTP-14672 Aux Id: ERL-494 </p>
+        </item>
+        <item>
+          <p>
+	    Fix so that schedulers are bound correctly when the first
+	    available cpu is not the first detected cpu. e.g. when
+	    using "taskset -c X..Y" when X is not equal to 0.</p>
+          <p>
+	    Own Id: OTP-14694</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Erts 9.1.2</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Fixed bug that could cause a VM crash when a corrupt
+	    message is received on distribution channel from other
+	    node.</p>
+          <p>
+	    Own Id: OTP-14661 Aux Id: ERIERL-80 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Erts 9.1.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p>The new zlib module returned a data_error when
+	    inflating concatenated streams, which was incompatible
+	    with the old module's behavior of returning the
+	    uncompressed data up to the end of the first stream.</p>
+          <p>
+	    Own Id: OTP-14648</p>
+        </item>
+        <item>
+	    <p>zlib:gunzip/1 will no longer stop at the end of the
+	    first stream when decompressing concatenated gzip
+	    files.</p>
+          <p>
+	    Own Id: OTP-14649</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Erts 9.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Changed <c>erlang:apply/2</c> to raise a <c>badarg</c>
+	    exception if the second argument is not a proper list.
+	    Previous behavior was a misleading <c>undef</c>
+	    exception.</p>
+          <p>
+	    Own Id: OTP-14490 Aux Id: ERL-432 </p>
+        </item>
+        <item>
+	    <p>On macOS, <c>crypto</c> would crash if <c>observer</c>
+	    had been started before <c>crypto</c>. On the beta for
+	    macOS 10.13 (High Sierra), <c>crypto</c> would crash.
+	    Both of those bugs have been fixed.</p>
+          <p>
+	    Own Id: OTP-14499 Aux Id: ERL-251 ERL-439 </p>
+        </item>
+        <item>
+          <p>
+	    Fixed bug in enif_whereis_pid/port that could cause heap
+	    corruption in rare cases.</p>
+          <p>
+	    Own Id: OTP-14523</p>
+        </item>
+        <item>
+          <p>
+	    Fix so that trace messages generated when in a dirty nif
+	    are flushed correctly when the dirty nif is done
+	    executing.</p>
+          <p>
+	    Own Id: OTP-14538</p>
+        </item>
+        <item>
+          <p>
+	    Fix escape code handling when using ANSI color codes in
+	    the shell.</p>
+          <p>
+	    Own Id: OTP-14549 Aux Id: PR1536 </p>
+        </item>
+        <item>
+          <p>
+	    Upgraded the ERTS internal PCRE library from version 8.40
+	    to version 8.41. See <url
+	    href="http://pcre.org/original/changelog.txt">http://pcre.org/original/changelog.txt</url>
+	    for information about changes made to PCRE. This library
+	    implements major parts of the <seealso
+	    marker="stdlib:re"><c>re</c></seealso> regular
+	    expressions module.</p>
+          <p>
+	    Own Id: OTP-14574</p>
+        </item>
+        <item>
+          <p>
+	    Fixed a bug causing <c>statistics(runtime)</c> to produce
+	    negative values and a bug in
+	    <c>statistics(wall_clock)</c> causing it to produce
+	    values one second too long.</p>
+          <p>
+	    <c>statistics(runtime)</c> now also use
+	    <c>getrusage()</c> as source when available preventing
+	    the returned value from wrapping as frequent as before.</p>
+          <p>
+	    Own Id: OTP-14597 Aux Id: ERL-465 </p>
+        </item>
+        <item>
+          <p>
+	    Fixed small memory leak that could occur when sending to
+	    a terminating port.</p>
+          <p>
+	    Own Id: OTP-14609</p>
+        </item>
+        <item>
+          <p>
+	    Fix bug causing VM crash when a module with
+	    <c>-on_load</c> directive is loaded while
+	    <c>erlang:trace(on_load, ...)</c> is enabled.</p>
+          <p>
+	    Own Id: OTP-14612</p>
+        </item>
+        <item>
+	    <p>A warning that the compiler may optimize away atoms
+	    have been added to the documentation of
+	    <c>list_to_existing_atom/1</c> and
+	    <c>binary_to_existing_atom/2</c>.</p>
+          <p>
+	    Own Id: OTP-14614 Aux Id: ERL-453 </p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+	    <p>Lock counting can now be fully toggled at runtime in
+	    the lock counting emulator (<c>-emu_type lcnt</c>).
+	    Everything is enabled by default to match the old
+	    behavior, but specific categories can be toggled at will
+	    with minimal runtime overhead when disabled. Refer to the
+	    documentation on <c>lcnt:rt_mask/1</c> for details.</p>
+          <p>
+	    Own Id: OTP-13170</p>
+        </item>
+        <item>
+	    <p>The <c>zlib</c> module has been refactored and all its
+	    operations will now yield appropriately, allowing them to
+	    be used freely in concurrent applications.</p> <p>The
+	    following functions have been deprecated, but will not
+	    produce compiler warnings until OTP 21:
+	    <c>zlib:adler32</c>, <c>zlib:crc32</c>,
+	    <c>zlib:inflateChunk</c>, <c>zlib:getBufSize</c>,
+	    <c>zlib:setBufSize</c>.</p> <p>The behavior of throwing
+	    an error when a dictionary is required for decompression
+	    has also been deprecated. Refer to the documentation on
+	    <c>inflateSetDictionary/2</c> for details.</p>
+          <p>
+	    Own Id: OTP-14185</p>
+        </item>
+        <item>
+	    <p><c>lcnt:collect</c> and <c>lcnt:clear</c> will no
+	    longer block all other threads in the runtime system.</p>
+          <p>
+	    Own Id: OTP-14412</p>
+        </item>
+        <item>
+	    <p>Add <c>erlang:iolist_to_iovec/1</c>, which converts an
+	    iolist() to an erlang:iovec(), which suitable for use
+	    with <c>enif_inspect_iovec</c>.</p>
+          <p>
+	    Own Id: OTP-14520</p>
+        </item>
+        <item>
+	    <p>When provided with bad arguments, the <c>zlib</c>
+	    module will now raise named exceptions instead of just
+	    <c>badarg</c>. For example, <c>not_initialized</c> when
+	    using <c>zlib:inflate/2</c> with an uninitialized
+	    stream.</p>
+          <p>
+	    Own Id: OTP-14527</p>
+        </item>
+        <item>
+          <p>
+	    <c>erlang:halt/2</c> allows any Unicode string as slogan
+	    for the crash dump.</p>
+          <p>
+	    Own Id: OTP-14553</p>
+        </item>
+        <item>
+	    <p>Add new nif API functions for managing an I/O Queue.
+	    The added functions are:</p> <list type="bulleted">
+	    <item><seealso marker="erl_nif#enif_ioq_create">
+	    <c>enif_ioq_create()</c></seealso></item> <item><seealso
+	    marker="erl_nif#enif_ioq_destroy">
+	    <c>enif_ioq_destroy()</c></seealso></item> <item><seealso
+	    marker="erl_nif#enif_ioq_enq_binary">
+	    <c>enif_ioq_enq_binary()</c></seealso></item>
+	    <item><seealso marker="erl_nif#enif_ioq_enqv">
+	    <c>enif_ioq_enqv()</c></seealso></item> <item><seealso
+	    marker="erl_nif#enif_ioq_deq">
+	    <c>enif_ioq_deq()</c></seealso></item> <item><seealso
+	    marker="erl_nif#enif_ioq_peek">
+	    <c>enif_ioq_peek()</c></seealso></item> <item><seealso
+	    marker="erl_nif#enif_inspect_iovec">
+	    <c>enif_inspect_iovec()</c></seealso></item>
+	    <item><seealso marker="erl_nif#enif_free_iovec">
+	    <c>enif_free_iovec()</c></seealso></item> </list>
+          <p>
+	    Own Id: OTP-14598</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Erts 9.0.5</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Fixed bug in <c>binary_to_term</c> and
+	    <c>binary_to_atom</c> that could cause VM crash.
+	    Typically happens when the last character of an UTF8
+	    string is in the range 128 to 255, but truncated to only
+	    one byte. Bug exists in <c>binary_to_term</c> since ERTS
+	    version 5.10.2 (OTP_R16B01) and <c>binary_to_atom</c>
+	    since ERTS version 9.0 (OTP-20.0).</p>
+          <p>
+	    Own Id: OTP-14590 Aux Id: ERL-474 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Erts 9.0.4</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
@@ -603,7 +866,7 @@
 	    marker="erts:erl"><c>erl</c></seealso> command.</p>
           <p>
 	    See <url
-	    href="http://pcre.org/original/changelog.txt"><c>http://pcre.org/original/changelog.txt</c></url>
+	    href="http://pcre.org/original/changelog.txt">http://pcre.org/original/changelog.txt</url>
 	    for information about changes made to PCRE between the
 	    versions 8.33 and 8.40.</p>
           <p>
@@ -760,6 +1023,91 @@
 
 </section>
 
+<section><title>Erts 8.3.5.3</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    A timer internal bit-field used for storing scheduler id
+	    was too small. As a result, VM internal timer data
+	    structures could become inconsistent when using 1024
+	    schedulers on the system. Note that systems with less
+	    than 1024 schedulers are not effected by this bug.</p>
+          <p>
+	    This bug was introduced in ERTS version 7.0 (OTP 18.0).</p>
+          <p>
+	    Own Id: OTP-14548 Aux Id: OTP-11997, ERL-468 </p>
+        </item>
+        <item>
+          <p>
+	    Fixed bug in <c>binary_to_term</c> and
+	    <c>binary_to_atom</c> that could cause VM crash.
+	    Typically happens when the last character of an UTF8
+	    string is in the range 128 to 255, but truncated to only
+	    one byte. Bug exists in <c>binary_to_term</c> since ERTS
+	    version 5.10.2 (OTP_R16B01) and <c>binary_to_atom</c>
+	    since ERTS version 9.0 (OTP-20.0).</p>
+          <p>
+	    Own Id: OTP-14590 Aux Id: ERL-474 </p>
+        </item>
+        <item>
+          <p>
+	    Fix bug causing VM crash when a module with
+	    <c>-on_load</c> directive is loaded while
+	    <c>erlang:trace(on_load, ...)</c> is enabled.</p>
+          <p>
+	    Own Id: OTP-14612</p>
+        </item>
+        <item>
+          <p>
+	    Fixed bug that could cause a VM crash when a corrupt
+	    message is received on distribution channel from other
+	    node.</p>
+          <p>
+	    Own Id: OTP-14661 Aux Id: ERIERL-80 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Erts 8.3.5.2</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Fix performance bug in pre-allocators that could cause
+	    them to permanently fall back on normal more expensive
+	    memory allocation. Pre-allocators are used for quick
+	    allocation of short lived meta data used by messages and
+	    other scheduled tasks. Bug exists since OTP_R15B02.</p>
+          <p>
+	    Own Id: OTP-14491</p>
+        </item>
+        <item>
+	    <p>Fixed a bug that prevented TCP sockets from being
+	    closed properly on send timeouts.</p>
+          <p>
+	    Own Id: OTP-14509</p>
+        </item>
+        <item>
+          <p>
+	    Fixed bug in operator <c>bxor</c> causing erroneuos
+	    result when one operand is a big <em>negative</em>
+	    integer with the lowest <c>N*W</c> bits as zero and the
+	    other operand not larger than <c>N*W</c> bits. <c>N</c>
+	    is an integer of 1 or larger and <c>W</c> is 32 or 64
+	    depending on word size.</p>
+          <p>
+	    Own Id: OTP-14514</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Erts 8.3.5.1</title>
     <section><title>Fixed Bugs and Malfunctions</title>
       <list>
diff --git a/erts/doc/src/part_notes.xml b/erts/doc/src/part_notes.xml
deleted file mode 100644
index e579b7635d..0000000000
--- a/erts/doc/src/part_notes.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>ERTS Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date>2004-09-07</date>
-    <rev>1.0</rev>
-  </header>
-  <description>
-    <p>The Erlang Runtime System application <em>ERTS</em>.</p>
-    <p>For information about older versions, see
-      <url href="part_notes_history_frame.html">Release Notes History</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/erts/doc/src/part_notes_history.xml b/erts/doc/src/part_notes_history.xml
deleted file mode 100644
index 277683a2b5..0000000000
--- a/erts/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2006</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>ERTS Release Notes History</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The Erlang Runtime System application <em>ERTS</em>.</p>
-  </description>
-  <xi:include href="notes_history.xml"/>
-</part>
-
diff --git a/erts/doc/src/zlib.xml b/erts/doc/src/zlib.xml
index 1d272c4c18..6f4c42da27 100644
--- a/erts/doc/src/zlib.xml
+++ b/erts/doc/src/zlib.xml
@@ -65,13 +65,22 @@ list_to_binary([Compressed|Last])</pre>
       <tag><c>badarg</c></tag>
       <item>Bad argument.
       </item>
+      <tag><c>not_initialized</c></tag>
+      <item>The stream hasn't been initialized, eg. if
+      <seealso marker="#inflateInit/1"><c>inflateInit/1</c></seealso> wasn't
+      called prior to a call to
+      <seealso marker="#inflate/2"><c>inflate/2</c></seealso>.
+      </item>
+      <tag><c>not_on_controlling_process</c></tag>
+      <item>The stream was used by a process that doesn't control it. Use
+      <seealso marker="#set_controlling_process/2">
+      <c>set_controlling_process/2</c></seealso> if you need to transfer
+      a stream to a different process.</item>
       <tag><c>data_error</c></tag>
       <item>The data contains errors.
       </item>
       <tag><c>stream_error</c></tag>
       <item>Inconsistent stream state.</item>
-      <tag><c>einval</c></tag>
-      <item>Bad value or wrong function called.</item>
       <tag><c>{need_dictionary,Adler32}</c></tag>
       <item>See <seealso marker="#inflate/2"><c>inflate/2</c></seealso>.
       </item>
@@ -90,6 +99,9 @@ list_to_binary([Compressed|Last])</pre>
       <name name="zlevel"/>
     </datatype>
     <datatype>
+      <name name="zflush"/>
+    </datatype>
+    <datatype>
       <name name="zmemlevel"/>
     </datatype>
     <datatype>
@@ -112,6 +124,11 @@ list_to_binary([Compressed|Last])</pre>
       <fsummary>Calculate the Adler checksum.</fsummary>
       <desc>
         <p>Calculates the Adler-32 checksum for <c><anno>Data</anno></c>.</p>
+        <warning>
+          <p>This function is deprecated and will be removed in a future
+             release. Use <seealso marker="erts:erlang#adler32/1">
+             <c>erlang:adler32/1</c></seealso> instead.</p>
+        </warning>
       </desc>
     </func>
 
@@ -127,6 +144,11 @@ list_to_binary([Compressed|Last])</pre>
 Crc = lists:foldl(fun(Data,Crc0) ->
                       zlib:adler32(Z, Crc0, Data),
                   end, zlib:adler32(Z,&lt;&lt; &gt;&gt;), Datas)</pre>
+        <warning>
+          <p>This function is deprecated and will be removed in a future
+             release. Use <seealso marker="erts:erlang#adler32/2">
+             <c>erlang:adler32/2</c></seealso> instead.</p>
+        </warning>
       </desc>
     </func>
 
@@ -141,6 +163,11 @@ Crc = lists:foldl(fun(Data,Crc0) ->
         <p>This function returns the <c><anno>Adler</anno></c> checksum of
           <c>[Data1,Data2]</c>, requiring only <c><anno>Adler1</anno></c>,
           <c><anno>Adler2</anno></c>, and <c><anno>Size2</anno></c>.</p>
+        <warning>
+          <p>This function is deprecated and will be removed in a future
+             release. Use <seealso marker="erts:erlang#adler32_combine/3">
+             <c>erlang:adler32_combine/3</c></seealso> instead.</p>
+        </warning>
       </desc>
     </func>
 
@@ -165,6 +192,12 @@ Crc = lists:foldl(fun(Data,Crc0) ->
       <fsummary>Get current CRC.</fsummary>
       <desc>
         <p>Gets the current calculated CRC checksum.</p>
+        <warning>
+          <p>This function is deprecated and will be removed in a future
+             release. Use <seealso marker="erts:erlang#crc32/1">
+             <c>erlang:crc32/1</c></seealso> on the uncompressed data
+             instead.</p>
+        </warning>
       </desc>
     </func>
 
@@ -173,6 +206,11 @@ Crc = lists:foldl(fun(Data,Crc0) ->
       <fsummary>Calculate CRC.</fsummary>
       <desc>
         <p>Calculates the CRC checksum for <c><anno>Data</anno></c>.</p>
+        <warning>
+          <p>This function is deprecated and will be removed in a future
+             release. Use <seealso marker="erts:erlang#crc32/1">
+             <c>erlang:crc32/1</c></seealso> instead.</p>
+        </warning>
       </desc>
     </func>
 
@@ -188,6 +226,11 @@ Crc = lists:foldl(fun(Data,Crc0) ->
 Crc = lists:foldl(fun(Data,Crc0) ->
                       zlib:crc32(Z, Crc0, Data),
                   end, zlib:crc32(Z,&lt;&lt; &gt;&gt;), Datas)</pre>
+        <warning>
+          <p>This function is deprecated and will be removed in a future
+             release. Use <seealso marker="erts:erlang#crc32/2">
+             <c>erlang:crc32/2</c></seealso> instead.</p>
+        </warning>
       </desc>
     </func>
 
@@ -202,6 +245,11 @@ Crc = lists:foldl(fun(Data,Crc0) ->
         <p>This function returns the <c><anno>CRC</anno></c> checksum of
           <c>[Data1,Data2]</c>, requiring only <c><anno>CRC1</anno></c>,
           <c><anno>CRC2</anno></c>, and <c><anno>Size2</anno></c>.</p>
+        <warning>
+          <p>This function is deprecated and will be removed in a future
+             release. Use <seealso marker="erts:erlang#crc32_combine/3">
+             <c>erlang:crc32_combine/3</c></seealso> instead.</p>
+        </warning>
       </desc>
     </func>
 
@@ -407,8 +455,8 @@ list_to_binary([B1,B2])</pre>
           <seealso marker="#deflateInit/1"><c>deflateInit/1,2,6</c></seealso> or
           <seealso marker="#deflateReset/1"><c>deflateReset/1</c></seealso>,
           before any call of
-          <seealso marker="#deflate/3"><c>deflate/3</c></seealso>.
-          The compressor and decompressor must use the same dictionary (see
+          <seealso marker="#deflate/3"><c>deflate/3</c></seealso>.</p>
+        <p>The compressor and decompressor must use the same dictionary (see
           <seealso marker="#inflateSetDictionary/2">
           <c>inflateSetDictionary/2</c></seealso>).</p>
         <p>The Adler checksum of the dictionary is returned.</p>
@@ -420,6 +468,10 @@ list_to_binary([B1,B2])</pre>
       <fsummary>Get buffer size.</fsummary>
       <desc>
         <p>Gets the size of the intermediate buffer.</p>
+        <warning>
+          <p>This function is deprecated and will be removed in a future
+             release.</p>
+        </warning>
       </desc>
     </func>
 
@@ -443,14 +495,31 @@ list_to_binary([B1,B2])</pre>
       <name name="inflate" arity="2"/>
       <fsummary>Decompress data.</fsummary>
       <desc>
-        <p>Decompresses as much data as possible.
-          It can introduce some output latency (reading
-          input without producing any output).</p>
-        <p>If a preset dictionary is needed at this point (see
-          <seealso marker="#inflateSetDictionary/2">
-          <c>inflateSetDictionary/2</c></seealso>), <c>inflate/2</c> throws a
-          <c>{need_dictionary,Adler}</c> exception, where <c>Adler</c> is
-          the Adler-32 checksum of the dictionary chosen by the compressor.</p>
+        <p>Equivalent to
+           <seealso marker="#inflate/3"><c>inflate(Z, Data, [])</c></seealso>
+           </p>
+      </desc>
+    </func>
+
+    <func>
+      <name name="inflate" arity="3"/>
+      <fsummary>Decompress data.</fsummary>
+      <desc>
+        <p>Decompresses as much data as possible. It can introduce some output
+           latency (reading input without producing any output).</p>
+        <p>Currently the only available option is
+           <c>{exception_on_need_dict,boolean()}</c> which controls whether the
+           function should throw an exception when a preset dictionary is
+           required for decompression. When set to false, a
+           <c>need_dictionary</c> tuple will be returned instead. See
+           <seealso marker="#inflateSetDictionary/2">
+           <c>inflateSetDictionary/2</c></seealso> for details.</p>
+        <warning>
+           <p>This option defaults to <c>true</c> for backwards compatibility
+              but we intend to remove the exception behavior in a future
+              release. New code that needs to handle dictionaries manually
+              should always specify <c>{exception_on_need_dict,false}</c>.</p>
+        </warning>
       </desc>
     </func>
 
@@ -458,6 +527,11 @@ list_to_binary([B1,B2])</pre>
       <name name="inflateChunk" arity="1"/>
       <fsummary>Read next uncompressed chunk.</fsummary>
       <desc>
+        <warning>
+          <p>This function is deprecated and will be removed in a future
+             release. Use <seealso marker="#safeInflate/2"><c>safeInflate/2</c>
+             </seealso> instead.</p>
+        </warning>
         <p>Reads the next chunk of uncompressed data, initialized by
           <seealso marker="#inflateChunk/2"><c>inflateChunk/2</c></seealso>.</p>
         <p>This function is to be repeatedly called, while it returns
@@ -469,23 +543,27 @@ list_to_binary([B1,B2])</pre>
       <name name="inflateChunk" arity="2"/>
       <fsummary>Decompress data with limited output size.</fsummary>
       <desc>
+        <warning>
+          <p>This function is deprecated and will be removed in a future
+             release. Use <seealso marker="#safeInflate/2"><c>safeInflate/2</c>
+             </seealso> instead.</p>
+        </warning>
         <p>Like <seealso marker="#inflate/2"><c>inflate/2</c></seealso>,
-          but decompresses no more data than will fit in the buffer configured
-          through <seealso marker="#setBufSize/2"><c>setBufSize/2</c></seealso>.
-          Is is useful when decompressing a stream with a high compression
-          ratio, such that a small amount of compressed input can expand up to
-          1000 times.</p>
+           but decompresses no more data than will fit in the buffer configured
+           through <seealso marker="#setBufSize/2"><c>setBufSize/2</c>
+           </seealso>. Is is useful when decompressing a stream with a high
+           compression ratio, such that a small amount of compressed input can
+           expand up to 1000 times.</p>
         <p>This function returns <c>{more, Decompressed}</c>, when there is
-          more output available, and
-          <seealso marker="#inflateChunk/1"><c>inflateChunk/1</c></seealso>
-          is to be used to read it.</p>
-        <p>This function can introduce some output latency (reading
-          input without producing any output).</p>
-        <p>If a preset dictionary is needed at this point (see
-          <seealso marker="#inflateSetDictionary/2">
-          <c>inflateSetDictionary/2</c></seealso>), this function throws a
-          <c>{need_dictionary,Adler}</c> exception, where <c>Adler</c> is
-          the Adler-32 checksum of the dictionary chosen by the compressor.</p>
+           more output available, and
+           <seealso marker="#inflateChunk/1"><c>inflateChunk/1</c></seealso>
+           is to be used to read it.</p>
+        <p>This function can introduce some output latency (reading input
+           without producing any output).</p>
+        <p>An exception will be thrown if a preset dictionary is required for
+           further decompression. See
+           <seealso marker="#inflateSetDictionary/2">
+           <c>inflateSetDictionary/2</c></seealso> for details.</p>
         <p>Example:</p>
         <pre>
 walk(Compressed, Handler) ->
@@ -517,6 +595,18 @@ loop(Z, Handler, Uncompressed) ->
     </func>
 
     <func>
+      <name name="inflateGetDictionary" arity="1"/>
+      <fsummary>Return the decompression dictionary.</fsummary>
+      <desc>
+        <p>Returns the decompression dictionary currently in use
+          by the stream. This function must be called between
+          <seealso marker="#inflateInit/1"><c>inflateInit/1,2</c></seealso>
+          and <seealso marker="#inflateEnd/1"><c>inflateEnd</c></seealso>.</p>
+        <p>Only supported if ERTS was compiled with zlib >= 1.2.8.</p>
+      </desc>
+    </func>
+
+    <func>
       <name name="inflateInit" arity="1"/>
       <fsummary>Initialize a session for decompression.</fsummary>
       <desc>
@@ -562,45 +652,83 @@ loop(Z, Handler, Uncompressed) ->
       <fsummary>Initialize the decompression dictionary.</fsummary>
       <desc>
         <p>Initializes the decompression dictionary from the specified
-          uncompressed byte sequence. This function must be called
-          immediately after a call of
-          <seealso marker="#inflate/2"><c>inflate/2</c></seealso>
-          if this call threw a <c>{need_dictionary,Adler}</c> exception.
-          The dictionary chosen by the compressor can be determined from the
-          Adler value thrown by the call to <c>inflate/2</c>.
-          The compressor and decompressor must use the same dictionary (see
-          <seealso marker="#deflateSetDictionary/2">
-          <c>deflateSetDictionary/2</c></seealso>).</p>
+           uncompressed byte sequence. This function must be called as a
+           response to an inflate operation (eg.
+           <seealso marker="#safeInflate/2"><c>safeInflate/2</c></seealso>)
+           returning <c>{need_dictionary,Adler,Output}</c> or in the case of
+           deprecated functions, throwing an
+           <c>{'EXIT',{{need_dictionary,Adler},_StackTrace}}</c> exception.</p>
+        <p>The dictionary chosen by the compressor can be determined from the
+           Adler value returned or thrown by the call to the inflate function.
+           The compressor and decompressor must use the same dictionary (See
+           <seealso marker="#deflateSetDictionary/2">
+           <c>deflateSetDictionary/2</c></seealso>).</p>
+        <p>After setting the dictionary the inflate operation should be
+           retried without new input.</p>
         <p>Example:</p>
         <pre>
-unpack(Z, Compressed, Dict) ->
+deprecated_unpack(Z, Compressed, Dict) ->
      case catch zlib:inflate(Z, Compressed) of
-          {'EXIT',{{need_dictionary,DictID},_}} ->
-                   zlib:inflateSetDictionary(Z, Dict),
+          {'EXIT',{{need_dictionary,_DictID},_}} ->
+                 ok = zlib:inflateSetDictionary(Z, Dict),
                  Uncompressed = zlib:inflate(Z, []);
           Uncompressed ->
                  Uncompressed
-     end.</pre>
+     end.
+
+new_unpack(Z, Compressed, Dict) ->
+    case zlib:inflate(Z, Compressed, [{exception_on_need_dict, false}]) of
+        {need_dictionary, _DictId, Output} ->
+            ok = zlib:inflateSetDictionary(Z, Dict),
+            [Output | zlib:inflate(Z, [])];
+        Uncompressed ->
+            Uncompressed
+    end.</pre>
       </desc>
     </func>
 
     <func>
-      <name name="inflateGetDictionary" arity="1"/>
-      <fsummary>Return the decompression dictionary.</fsummary>
+      <name name="open" arity="0"/>
+      <fsummary>Open a stream and return a stream reference.</fsummary>
       <desc>
-        <p>Returns the decompression dictionary currently in use
-          by the stream. This function must be called between
-          <seealso marker="#inflateInit/1"><c>inflateInit/1,2</c></seealso>
-          and <seealso marker="#inflateEnd/1"><c>inflateEnd</c></seealso>.</p>
-        <p>Only supported if ERTS was compiled with zlib >= 1.2.8.</p>
+        <p>Opens a zlib stream.</p>
       </desc>
     </func>
 
     <func>
-      <name name="open" arity="0"/>
-      <fsummary>Open a stream and return a stream reference.</fsummary>
+      <name name="safeInflate" arity="2"/>
+      <fsummary>Decompress data with limited output size.</fsummary>
       <desc>
-        <p>Opens a zlib stream.</p>
+        <p>Like <seealso marker="#inflate/2"><c>inflate/2</c></seealso>,
+           but returns once it has expanded beyond a small 
+           implementation-defined threshold. It's useful when decompressing
+           untrusted input which could have been maliciously crafted to expand
+           until the system runs out of memory.</p>
+        <p>This function returns <c>{continue | finished, Output}</c>, where
+           <anno>Output</anno> is the data that was decompressed in this call.
+           New input can be queued up on each call if desired, and the function
+           will return <c>{finished, Output}</c> once all queued data has been
+           decompressed.</p>
+        <p>This function can introduce some output latency (reading
+           input without producing any output).</p>
+        <p>If a preset dictionary is required for further decompression, this
+           function returns a <c>need_dictionary</c> tuple. See
+           <seealso marker="#inflateSetDictionary/2">
+           <c>inflateSetDictionary/2</c></seealso>) for details.</p>
+        <p>Example:</p>
+        <pre>
+walk(Compressed, Handler) ->
+    Z = zlib:open(),
+    zlib:inflateInit(Z),
+    loop(Z, Handler, zlib:safeInflate(Z, Compressed)),
+    zlib:inflateEnd(Z),
+    zlib:close(Z).
+
+loop(Z, Handler, {continue, Output}) ->
+    Handler(Output),
+    loop(Z, Handler, zlib:safeInflate(Z, []));
+loop(Z, Handler, {finished, Output}) ->
+    Handler(Output).</pre>
       </desc>
     </func>
 
@@ -609,6 +737,19 @@ unpack(Z, Compressed, Dict) ->
       <fsummary>Set buffer size.</fsummary>
       <desc>
         <p>Sets the intermediate buffer size.</p>
+        <warning>
+          <p>This function is deprecated and will be removed in a future
+             release.</p>
+        </warning>
+      </desc>
+    </func>
+
+    <func>
+      <name name="set_controlling_process" arity="2"/>
+      <fsummary>Transfers ownership of a zlib stream.</fsummary>
+      <desc>
+        <p>Changes the controlling process of <c><anno>Z</anno></c> to
+           <c><anno>Pid</anno></c>, which must be a local process.</p>
       </desc>
     </func>
 
diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in
index 47d8ee8811..fdaf253fe5 100644
--- a/erts/emulator/Makefile.in
+++ b/erts/emulator/Makefile.in
@@ -84,7 +84,6 @@ PROFILE_USE=-fprofile-instr-use=$(OBJDIR)/default.profdata
 PROFILE_USE_DEPS=$(OBJDIR)/default.profdata
 endif
 
-DIRTY_SCHEDULER_SUPPORT=@DIRTY_SCHEDULER_SUPPORT@
 DIRTY_SCHEDULER_TEST=@DIRTY_SCHEDULER_TEST@
 
 ifeq ($(TYPE),debug)
@@ -215,10 +214,6 @@ override FLAVOR=smp
 
 FLAVOR_MARKER=.smp
 ENABLE_ALLOC_TYPE_VARS += nofrag
-ifeq ($(DIRTY_SCHEDULER_SUPPORT),yes)
-THR_DEFS += -DERTS_DIRTY_SCHEDULERS
-DS_SUPPORT=yes
-
 ifeq ($(DIRTY_SCHEDULER_TEST),yes)
 DS_TEST=yes
 THR_DEFS += -DERTS_DIRTY_SCHEDULERS_TEST
@@ -226,11 +221,6 @@ else # DIRTY_SCHEDULER_TEST
 DS_TEST=no
 endif # DIRTY_SCHEDULER_TEST
 
-else # DIRTY_SCHEDULER_SUPPORT
-DS_SUPPORT=no
-DS_TEST=no
-endif # DIRTY_SCHEDULER_SUPPORT
-
 TF_MARKER=$(TYPEMARKER)$(FLAVOR_MARKER)
 
 ifeq ($(TYPE)-@HAVE_VALGRIND@,valgrind-no)
@@ -249,18 +239,9 @@ ARCH=@ARCH@
 ultrasparcCFLAGS=-Wa,-xarch=v8plusa
 ARCHCFLAGS=$($(ARCH)CFLAGS)
 
-ifdef HIPE_ENABLED
-ifeq ($(OPSYS),linux)
-ppcBEAMLDFLAGS=-Wl,-m,elf32ppc
-ppc64BEAMLDFLAGS=-Wl,-m,elf64ppc,-T,hipe/elf64ppc.x
-endif
-ifeq ($(OPSYS),darwin)
-amd64BEAMLDFLAGS=-pagezero_size 0x10000000
-endif
-HIPEBEAMLDFLAGS=$($(ARCH)BEAMLDFLAGS)
-endif
+HIPEBEAMLDFLAGS=@HIPEBEAMLDFLAGS@
 
-ERTS_ENABLE_KERNEL_POLL=@ERTS_ENABLE_KERNEL_POLL@
+ERTS_BUILD_FALLBACK_POLL=@ERTS_BUILD_FALLBACK_POLL@
 
 #
 #
@@ -508,7 +489,6 @@ ifeq ($(TARGET),win32)
 RELEASE_INCLUDES += sys/$(ERLANG_OSTYPE)/erl_win_dyn_driver.h
 endif
 
-
 .PHONY: release_spec
 ifdef VOID_EMULATOR
 release_spec:
@@ -577,6 +557,7 @@ OPCODE_TABLES += hipe/hipe_ops.tab hipe/hipe_instrs.tab
 endif
 
 $(TTF_DIR)/beam_cold.h \
+$(TTF_DIR)/beam_warm.h \
 $(TTF_DIR)/beam_hot.h \
 $(TTF_DIR)/beam_opcodes.c \
 $(TTF_DIR)/beam_opcodes.h \
@@ -586,6 +567,7 @@ $(TTF_DIR)/beam_tr_funcs.h \
 $(TTF_DIR)/OPCODES-GENERATED: $(OPCODE_TABLES) utils/beam_makeops
 	$(gen_verbose)LANG=C $(PERL) utils/beam_makeops \
 		-wordsize @EXTERNAL_WORD_SIZE@ \
+		-code-model @CODE_MODEL@ \
 		-outdir $(TTF_DIR) \
 		-DUSE_VM_PROBES=$(if $(USE_VM_PROBES),1,0) \
 		-DNO_FPE_SIGNALS=$(if $filter(unreliable,$(FPE)),1,0) \
@@ -625,7 +607,7 @@ $(HIPE_NBIF_FILES) \
 	: $(TTF_DIR)/TABLES-GENERATED
 $(TTF_DIR)/TABLES-GENERATED: $(ATOMS) $(DIRTY_BIFS) $(BIFS) utils/make_tables
 	$(gen_verbose)LANG=C $(PERL) utils/make_tables -src $(TTF_DIR) -include $(TTF_DIR)\
-		-ds $(DS_SUPPORT) -dst $(DS_TEST) -hipe $(HIPE) $(ATOMS) $(DIRTY_BIFS) $(BIFS) && echo $? >$(TTF_DIR)/TABLES-GENERATED
+		-dst $(DS_TEST) -hipe $(HIPE) $(ATOMS) $(DIRTY_BIFS) $(BIFS) && echo $? >$(TTF_DIR)/TABLES-GENERATED
 GENERATE += $(TTF_DIR)/TABLES-GENERATED
 
 $(TTF_DIR)/erl_alloc_types.h: beam/erl_alloc.types utils/make_alloc_types
@@ -719,16 +701,27 @@ $(OBJDIR)/beams.$(RES_EXT): $(TARGET)/beams.rc
 
 endif
 
+# We disable the implicit rule of .S -> .o so that the verbose asm
+# generate is not used for compiling erts. This is only a problem on
+# old solaris make
+%.o : %.S
+
 # Usually the same as the default rule, but certain platforms (e.g. win32) mix
 # different compilers
 $(OBJDIR)/beam_emu.o: beam/beam_emu.c
 	$(V_EMU_CC) $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
 
+$(OBJDIR)/beam_emu.S: beam/beam_emu.c
+	$(V_EMU_CC) -S -fverbose-asm $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
+
 $(OBJDIR)/%_pg.o: beam/%.c
 	$(V_CC) $(PROFILE_GENERATE) $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
 $(OBJDIR)/%_pu.o: beam/%.c $(PROFILE_USE_DEPS)
 	$(V_CC) $(PROFILE_USE) $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
 
+$(OBJDIR)/%_pu.S: beam/%.c $(PROFILE_USE_DEPS)
+	$(V_CC) -S -fverbose-asm $(PROFILE_USE) $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
+
 $(OBJDIR)/PROFILE: $(BINDIR)/$(PROFILE_EXECUTABLE)
 	$(V_at)echo " PROFILE ${PROFILE_EXECUTABLE}"
 	$(V_at)rm -f $(OBJDIR)/erl*.profraw
@@ -740,6 +733,8 @@ $(OBJDIR)/PROFILE: $(BINDIR)/$(PROFILE_EXECUTABLE)
 	  -noshell -s estone_SUITE pgo -s init stop >> $(OBJDIR)/PROFILE_LOG
 	$(V_at)touch $@
 
+.SECONDARY: $(patsubst %.o,%_pu.gcda,$(PROFILE_OBJS))
+
 $(OBJDIR)/%_pu.gcda: $(OBJDIR)/PROFILE
 	$(V_at)mv $(OBJDIR)/$*_pg.gcda $@
 	$(V_at)touch $@
@@ -747,6 +742,25 @@ $(OBJDIR)/%_pu.gcda: $(OBJDIR)/PROFILE
 $(OBJDIR)/default.profdata: $(OBJDIR)/PROFILE
 	$(V_LLVM_PROFDATA) merge -output $@ $(OBJDIR)/*.profraw
 
+ifeq ($(ERTS_BUILD_FALLBACK_POLL),yes)
+# Have to treat erl_poll differently as the same .c file is used
+# twice for kernel poll builds.
+$(OBJDIR)/erl_poll.o: sys/common/erl_poll.c
+	$(V_CC) -DERTS_KERNEL_POLL_VERSION $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
+
+# Do a copy in order to make debuggers less confused
+$(TTF_DIR)/erl_poll.flbk.c: sys/common/erl_poll.c
+	$(V_at) cp $< $@
+	@touch $@
+
+$(OBJDIR)/erl_poll.flbk.o: $(TTF_DIR)/erl_poll.flbk.c
+	$(V_CC) -DERTS_NO_KERNEL_POLL_VERSION $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
+endif
+
+
+# ----------------------------------------------------------------------
+# General targets
+#
 $(OBJDIR)/%.o: beam/%.c
 	$(V_CC) $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
 
@@ -780,12 +794,6 @@ $(BINDIR)/$(CS_EXECUTABLE): $(TTF_DIR)/GENERATED $(PRELOAD_SRC) $(CS_OBJ) $(ERTS
 	$(ld_verbose)$(CS_PURIFY) $(LD) $(CS_LDFLAGS) -o $(BINDIR)/$(CS_EXECUTABLE) \
                $(CS_CFLAGS) $(COMMON_INCLUDES) $(CS_OBJ) $(CS_LIBS)
 
-$(OBJDIR)/%.kp.o: sys/common/%.c
-	$(V_CC) -DERTS_KERNEL_POLL_VERSION $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
-
-$(OBJDIR)/%.nkp.o: sys/common/%.c
-	$(V_CC) -DERTS_NO_KERNEL_POLL_VERSION $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
-
 ifeq ($(GCC),yes)
 
 $(OBJDIR)/erl_goodfit_alloc.o: beam/erl_goodfit_alloc.c
@@ -859,17 +867,19 @@ RUN_OBJS += \
 	$(OBJDIR)/erl_bif_binary.o      $(OBJDIR)/erl_ao_firstfit_alloc.o \
 	$(OBJDIR)/erl_thr_queue.o	$(OBJDIR)/erl_sched_spec_pre_alloc.o \
 	$(OBJDIR)/erl_ptab.o		$(OBJDIR)/erl_map.o \
-	$(OBJDIR)/erl_msacc.o		$(OBJDIR)/erl_lock_flags.o
+	$(OBJDIR)/erl_msacc.o		$(OBJDIR)/erl_lock_flags.o \
+	$(OBJDIR)/erl_io_queue.o
 
 LTTNG_OBJS = $(OBJDIR)/erlang_lttng.o
-NIF_OBJS = $(OBJDIR)/erl_tracer_nif.o
+NIF_OBJS = \
+	   $(OBJDIR)/erl_tracer_nif.o \
+	   $(OBJDIR)/zlib_nif.o
 
 ifeq ($(TARGET),win32)
 DRV_OBJS = \
 	$(OBJDIR)/registry_drv.o \
 	$(OBJDIR)/efile_drv.o \
 	$(OBJDIR)/inet_drv.o \
-	$(OBJDIR)/zlib_drv.o \
 	$(OBJDIR)/ram_file_drv.o \
 	$(OBJDIR)/ttsl_drv.o
 OS_OBJS = \
@@ -899,7 +909,6 @@ OS_OBJS = \
 DRV_OBJS = \
 	$(OBJDIR)/efile_drv.o \
 	$(OBJDIR)/inet_drv.o \
-	$(OBJDIR)/zlib_drv.o \
 	$(OBJDIR)/ram_file_drv.o \
 	$(OBJDIR)/ttsl_drv.o
 endif
@@ -928,23 +937,19 @@ $(STATIC_NIF_LIBS) $(STATIC_DRIVER_LIBS):
 	echo "=== Leaving lib after making static libs"
 endif
 
-ifeq ($(ERTS_ENABLE_KERNEL_POLL),yes)
-OS_OBJS += 	$(OBJDIR)/erl_poll.kp.o \
-		$(OBJDIR)/erl_check_io.kp.o \
-		$(OBJDIR)/erl_poll.nkp.o \
-		$(OBJDIR)/erl_check_io.nkp.o
-else
 OS_OBJS +=	$(OBJDIR)/erl_poll.o \
-		$(OBJDIR)/erl_check_io.o
-endif
-
-OS_OBJS +=	$(OBJDIR)/erl_mseg.o \
+		$(OBJDIR)/erl_check_io.o \
+		$(OBJDIR)/erl_mseg.o \
 		$(OBJDIR)/erl_mmap.o \
 		$(OBJDIR)/erl_$(ERLANG_OSTYPE)_sys_ddll.o \
 		$(OBJDIR)/erl_mtrace_sys_wrap.o \
 		$(OBJDIR)/erl_sys_common_misc.o \
 		$(OBJDIR)/erl_os_monotonic_time_extender.o
 
+ifeq ($(ERTS_BUILD_FALLBACK_POLL),yes)
+OS_OBJS += 	$(OBJDIR)/erl_poll.flbk.o
+endif
+
 HIPE_ARCH64_OBJS=$(OBJDIR)/hipe_bif64.o
 
 HIPE_x86_OS_OBJS=$(HIPE_x86_$(OPSYS)_OBJS)
@@ -1101,8 +1106,7 @@ SED_REPL_O=s|^\([^:]*:\)|$$(OBJDIR)/\1|g
 SED_REPL_O_ZLIB=s|^\([^:]*:\)|$$(ZLIB_OBJDIR)/\1|g
 SED_REPL_TTF_DIR=s|$(TTF_DIR)/|$$(TTF_DIR)/|g
 SED_REPL_ERL_TOP=s|\([ 	]\)$(ERL_TOP)/|\1$$(ERL_TOP)/|g;s|^$(ERL_TOP)/|$$(ERL_TOP)/|g
-SED_REPL_POLL=s|$$(OBJDIR)/erl_poll.o|$$(OBJDIR)/erl_poll.kp.o $$(OBJDIR)/erl_poll.nkp.o|g
-SED_REPL_CHK_IO=s|$$(OBJDIR)/erl_check_io.o|$$(OBJDIR)/erl_check_io.kp.o $$(OBJDIR)/erl_check_io.nkp.o|g
+SED_REPL_POLL=s|$$(OBJDIR)/erl_poll.o|$$(OBJDIR)/erl_poll.o $$(OBJDIR)/erl_poll.flbk.o|g
 SED_REPL_TTF_COMP_FLAGS=s|\([^/]\)erl_compile_flags\.h|\1$$(TTF_DIR)/erl_compile_flags\.h|g
 
 ifeq ($(TARGET),win32)
@@ -1112,8 +1116,8 @@ else
 SED_PREFIX=
 endif
 
-ifeq ($(ERTS_ENABLE_KERNEL_POLL),yes)
-SED_SUFFIX=;$(SED_REPL_POLL);$(SED_REPL_CHK_IO)
+ifeq ($(ERTS_BUILD_FALLBACK_POLL),yes)
+SED_SUFFIX=;$(SED_REPL_POLL)
 else
 SED_SUFFIX=
 endif
@@ -1167,6 +1171,10 @@ DEP_FLAGS=-MM $(MG_FLAG) $(CFLAGS) $(INCLUDES) -Inifs/common -Idrivers/common -I
 SYS_SRC=$(ALL_SYS_SRC)
 endif
 
+.PHONY: check_emu_registers
+check_emu_registers: $(OBJDIR)/beam_emu$(PROFILE_MARKER).S
+	utils/beam_emu_vars -vars 'c_p E HTOP FCALLS I reg' $^
+
 .PHONY: $(TARGET)/gen_git_version.mk
 $(TARGET)/gen_git_version.mk:
 # We touch beam/erl_bif.info.c if we regenerated the git version to force a
diff --git a/erts/emulator/beam/arith_instrs.tab b/erts/emulator/beam/arith_instrs.tab
index 67cd7c6a2a..b828e86788 100644
--- a/erts/emulator/beam/arith_instrs.tab
+++ b/erts/emulator/beam/arith_instrs.tab
@@ -28,7 +28,7 @@ OUTLINED_ARITH_2(Fail, Live, Name, BIF, Op1, Op2, Dst) {
     result = erts_gc_$Name (c_p, reg, live);
     HEAVY_SWAPIN;
     ERTS_HOLE_CHECK(c_p);
-    if (is_value(result)) {
+    if (ERTS_LIKELY(is_value(result))) {
         $REFRESH_GEN_DEST();
         $Dst = result;
         $NEXT0();
@@ -49,10 +49,9 @@ plus.fetch(Op1, Op2) {
 }
 
 plus.execute(Fail, Live, Dst) {
-    if (is_both_small(PlusOp1, PlusOp2)) {
+    if (ERTS_LIKELY(is_both_small(PlusOp1, PlusOp2))) {
         Sint i = signed_val(PlusOp1) + signed_val(PlusOp2);
-        ASSERT(MY_IS_SSMALL(i) == IS_SSMALL(i));
-        if (MY_IS_SSMALL(i)) {
+        if (ERTS_LIKELY(IS_SSMALL(i))) {
             $Dst = make_small(i);
             $NEXT0();
         }
@@ -72,10 +71,9 @@ minus.fetch(Op1, Op2) {
 }
 
 minus.execute(Fail, Live, Dst) {
-    if (is_both_small(MinusOp1, MinusOp2)) {
+    if (ERTS_LIKELY(is_both_small(MinusOp1, MinusOp2))) {
         Sint i = signed_val(MinusOp1) - signed_val(MinusOp2);
-        ASSERT(MY_IS_SSMALL(i) == IS_SSMALL(i));
-        if (MY_IS_SSMALL(i)) {
+        if (ERTS_LIKELY(IS_SSMALL(i))) {
             $Dst = make_small(i);
             $NEXT0();
         }
@@ -87,9 +85,6 @@ i_increment := increment.fetch.execute;
 
 increment.head() {
     Eterm increment_reg_val;
-    Eterm increment_val;
-    Uint live;
-    Eterm result;
 }
 
 increment.fetch(Src) {
@@ -97,11 +92,13 @@ increment.fetch(Src) {
 }
 
 increment.execute(IncrementVal, Live, Dst) {
-    increment_val = $IncrementVal;
-    if (is_small(increment_reg_val)) {
+    Eterm increment_val = $IncrementVal;
+    Uint live;
+    Eterm result;
+
+    if (ERTS_LIKELY(is_small(increment_reg_val))) {
         Sint i = signed_val(increment_reg_val) + increment_val;
-        ASSERT(MY_IS_SSMALL(i) == IS_SSMALL(i));
-        if (MY_IS_SSMALL(i)) {
+        if (ERTS_LIKELY(IS_SSMALL(i))) {
             $Dst = make_small(i);
             $NEXT0();
         }
@@ -113,7 +110,7 @@ increment.execute(IncrementVal, Live, Dst) {
     result = erts_gc_mixed_plus(c_p, reg, live);
     HEAVY_SWAPIN;
     ERTS_HOLE_CHECK(c_p);
-    if (is_value(result)) {
+    if (ERTS_LIKELY(is_value(result))) {
         $REFRESH_GEN_DEST();
         $Dst = result;
         $NEXT0();
@@ -137,12 +134,12 @@ i_m_div(Fail, Live, Op1, Op2, Dst) {
 i_int_div(Fail, Live, Op1, Op2, Dst) {
     Eterm op1 = $Op1;
     Eterm op2 = $Op2;
-    if (op2 == SMALL_ZERO) {
+    if (ERTS_UNLIKELY(op2 == SMALL_ZERO)) {
         c_p->freason = BADARITH;
         $BIF_ERROR_ARITY_2($Fail, BIF_intdiv_2, op1, op2);
-    } else if (is_both_small(op1, op2)) {
+    } else if (ERTS_LIKELY(is_both_small(op1, op2))) {
         Sint ires = signed_val(op1) / signed_val(op2);
-        if (MY_IS_SSMALL(ires)) {
+        if (ERTS_LIKELY(IS_SSMALL(ires))) {
             $Dst = make_small(ires);
             $NEXT0();
         }
@@ -162,15 +159,15 @@ rem.fetch(Src1, Src2) {
 }
 
 rem.execute(Fail, Live, Dst) {
-     if (RemOp2 == SMALL_ZERO) {
-         c_p->freason = BADARITH;
-         $BIF_ERROR_ARITY_2($Fail, BIF_rem_2, RemOp1, RemOp2);
-     } else if (is_both_small(RemOp1, RemOp2)) {
-         $Dst = make_small(signed_val(RemOp1) % signed_val(RemOp2));
-         $NEXT0();
-     } else {
-         $OUTLINED_ARITH_2($Fail, $Live, int_rem, BIF_rem_2, RemOp1, RemOp2, $Dst);
-     }
+    if (ERTS_UNLIKELY(RemOp2 == SMALL_ZERO)) {
+        c_p->freason = BADARITH;
+        $BIF_ERROR_ARITY_2($Fail, BIF_rem_2, RemOp1, RemOp2);
+    } else if (ERTS_LIKELY(is_both_small(RemOp1, RemOp2))) {
+        $Dst = make_small(signed_val(RemOp1) % signed_val(RemOp2));
+        $NEXT0();
+    } else {
+        $OUTLINED_ARITH_2($Fail, $Live, int_rem, BIF_rem_2, RemOp1, RemOp2, $Dst);
+    }
 }
 
 i_band := band.fetch.execute;
@@ -185,7 +182,7 @@ band.fetch(Src1, Src2) {
 }
 
 band.execute(Fail, Live, Dst) {
-    if (is_both_small(BandOp1, BandOp2)) {
+    if (ERTS_LIKELY(is_both_small(BandOp1, BandOp2))) {
         /*
          * No need to untag -- TAG & TAG == TAG.
          */
@@ -196,7 +193,7 @@ band.execute(Fail, Live, Dst) {
 }
 
 i_bor(Fail, Live, Src1, Src2, Dst) {
-    if (is_both_small($Src1, $Src2)) {
+    if (ERTS_LIKELY(is_both_small($Src1, $Src2))) {
         /*
          * No need to untag -- TAG | TAG == TAG.
          */
@@ -207,7 +204,7 @@ i_bor(Fail, Live, Src1, Src2, Dst) {
 }
 
 i_bxor(Fail, Live, Src1, Src2, Dst) {
-    if (is_both_small($Src1, $Src2)) {
+    if (ERTS_LIKELY(is_both_small($Src1, $Src2))) {
         /*
          * TAG ^ TAG == 0.
          *
@@ -232,7 +229,7 @@ shift.setup_bsr(Src1, Src2) {
     Op1 = $Src1;
     Op2 = $Src2;
     shift_left_count = 0;
-    if (is_small(Op2)) {
+    if (ERTS_LIKELY(is_small(Op2))) {
         shift_left_count = -signed_val(Op2);
     } else if (is_big(Op2)) {
         /*
@@ -248,7 +245,7 @@ shift.setup_bsl(Src1, Src2) {
     Op1 = $Src1;
     Op2 = $Src2;
     shift_left_count = 0;
-    if (is_small(Op2)) {
+    if (ERTS_LIKELY(is_small(Op2))) {
         shift_left_count = signed_val(Op2);
     } else if (is_big(Op2)) {
         if (bignum_header_is_neg(*big_val(Op2))) {
@@ -271,10 +268,10 @@ shift.setup_bsl(Src1, Src2) {
 shift.execute(Fail, Live, Dst) {
     Uint big_words_needed;
 
-    if (is_small(Op1)) {
+    if (ERTS_LIKELY(is_small(Op1))) {
         Sint int_res = signed_val(Op1);
-        if (shift_left_count == 0 || int_res == 0) {
-            if (is_not_integer(Op2)) {
+        if (ERTS_UNLIKELY(shift_left_count == 0 || int_res == 0)) {
+            if (ERTS_UNLIKELY(is_not_integer(Op2))) {
                 goto shift_error;
             }
             if (int_res == 0) {
@@ -343,7 +340,7 @@ shift.execute(Fail, Live, Dst) {
                 HTOP += bignum_header_arity(*HTOP) + 1;
             }
             HEAP_SPACE_VERIFIED(0);
-            if (is_nil(Op1)) {
+            if (ERTS_UNLIKELY(is_nil(Op1))) {
                 /*
                  * This result must have been only slighty larger
                  * than allowed since it wasn't caught by the
@@ -369,10 +366,10 @@ shift.execute(Fail, Live, Dst) {
         reg[0] = Op1;
         reg[1] = Op2;
         SWAPOUT;
-        if (I[0] == (BeamInstr) OpCode(i_bsl_ssjtd)) {
+        if (IsOpCode(I[0], i_bsl_ssjtd)) {
             I = handle_error(c_p, I, reg, &bif_export[BIF_bsl_2]->info.mfa);
         } else {
-            ASSERT(I[0] == (BeamInstr) OpCode(i_bsr_ssjtd));
+            ASSERT(IsOpCode(I[0], i_bsr_ssjtd));
             I = handle_error(c_p, I, reg, &bif_export[BIF_bsr_2]->info.mfa);
         }
         goto post_error_handling;
@@ -381,7 +378,7 @@ shift.execute(Fail, Live, Dst) {
 
 i_int_bnot(Fail, Src, Live, Dst) {
     Eterm bnot_val = $Src;
-    if (is_small(bnot_val)) {
+    if (ERTS_LIKELY(is_small(bnot_val))) {
         bnot_val = make_small(~signed_val(bnot_val));
     } else {
         Uint live = $Live;
@@ -390,7 +387,7 @@ i_int_bnot(Fail, Src, Live, Dst) {
         bnot_val = erts_gc_bnot(c_p, reg, live);
         HEAVY_SWAPIN;
         ERTS_HOLE_CHECK(c_p);
-        if (is_nil(bnot_val)) {
+        if (ERTS_UNLIKELY(is_nil(bnot_val))) {
             $BIF_ERROR_ARITY_1($Fail, BIF_bnot_1, reg[live]);
         }
         $REFRESH_GEN_DEST();
diff --git a/erts/emulator/beam/atom.c b/erts/emulator/beam/atom.c
index 1b691386eb..bbe1cb3e11 100644
--- a/erts/emulator/beam/atom.c
+++ b/erts/emulator/beam/atom.c
@@ -136,7 +136,7 @@ atom_hash(Atom* obj)
     while(len--) {
 	v = *p++;
 	/* latin1 clutch for r16 */
-	if ((v & 0xFE) == 0xC2 && (*p & 0xC0) == 0x80) {
+	if (len && (v & 0xFE) == 0xC2 && (*p & 0xC0) == 0x80) {
 	    v = (v << 6) | (*p & 0x3F);
 	    p++; len--;
 	}
diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names
index a44d23b181..fc55b687d4 100644
--- a/erts/emulator/beam/atom.names
+++ b/erts/emulator/beam/atom.names
@@ -217,6 +217,8 @@ atom discard
 atom display_items
 atom dist
 atom dist_cmd
+atom dist_ctrl_put_data
+atom dist_data
 atom Div='/'
 atom div
 atom dlink
diff --git a/erts/emulator/beam/beam_bif_load.c b/erts/emulator/beam/beam_bif_load.c
index b78f617560..87367b44ab 100644
--- a/erts/emulator/beam/beam_bif_load.c
+++ b/erts/emulator/beam/beam_bif_load.c
@@ -65,9 +65,7 @@ static struct {
 
 Process *erts_code_purger = NULL;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 Process *erts_dirty_process_code_checker;
-#endif
 erts_atomic_t erts_copy_literal_area__;
 #define ERTS_SET_COPY_LITERAL_AREA(LA)			\
     erts_atomic_set_nob(&erts_copy_literal_area__,	\
@@ -261,7 +259,7 @@ struct m {
     Binary* code;
     Eterm module;
     Module* modp;
-    Uint exception;
+    Eterm exception;
 };
 
 static Eterm staging_epilogue(Process* c_p, int, Eterm res, int, struct m*, int, int);
@@ -280,7 +278,7 @@ exception_list(Process* p, Eterm tag, struct m* mp, Sint exceptions)
     Eterm res = NIL;
 
     while (exceptions > 0) {
-	if (mp->exception) {
+	if (is_value(mp->exception)) {
 	    res = CONS(hp, mp->module, res);
 	    hp += 2;
 	    exceptions--;
@@ -381,9 +379,9 @@ finish_loading_1(BIF_ALIST_1)
 
     exceptions = 0;
     for (i = 0; i < n; i++) {
-	p[i].exception = 0;
+	p[i].exception = THE_NON_VALUE;
 	if (p[i].modp->seen) {
-	    p[i].exception = 1;
+	    p[i].exception = am_duplicated;
 	    exceptions++;
 	}
 	p[i].modp->seen = 1;
@@ -417,9 +415,9 @@ finish_loading_1(BIF_ALIST_1)
 
     exceptions = 0;
     for (i = 0; i < n; i++) {
-	p[i].exception = 0;
+	p[i].exception = THE_NON_VALUE;
 	if (p[i].modp->curr.code_hdr && p[i].modp->old.code_hdr) {
-	    p[i].exception = 1;
+	    p[i].exception = am_not_purged;
 	    exceptions++;
 	}
     }
@@ -440,7 +438,7 @@ finish_loading_1(BIF_ALIST_1)
 	    retval = erts_finish_loading(p[i].code, BIF_P, 0, &mod);
 	    ASSERT(retval == NIL || retval == am_on_load);
 	    if (retval == am_on_load) {
-		p[i].exception = 1;
+		p[i].exception = am_on_load;
 		exceptions++;
 	    }
 	}
@@ -471,7 +469,8 @@ staging_epilogue(Process* c_p, int commit, Eterm res, int is_blocking,
 	    erts_commit_staging_code_ix();
 
 	    for (i=0; i < nmods; i++) {
-		if (mods[i].modp->curr.code_hdr) {
+		if (mods[i].modp->curr.code_hdr
+                    && mods[i].exception != am_on_load) {
 		    set_default_trace_pattern(mods[i].module);
 		}
 	      #ifdef HIPE
@@ -604,9 +603,6 @@ badarg:
 
 BIF_RETTYPE erts_internal_check_dirty_process_code_2(BIF_ALIST_2)
 {
-#if !defined(ERTS_DIRTY_SCHEDULERS)
-    BIF_ERROR(BIF_P, EXC_NOTSUP);
-#else
     Process *rp;
     int reds = 0;
     Eterm res;
@@ -636,7 +632,6 @@ BIF_RETTYPE erts_internal_check_dirty_process_code_2(BIF_ALIST_2)
     ASSERT(is_value(res));
 
     BIF_RET2(res, reds);
-#endif
 }
 
 BIF_RETTYPE delete_module_1(BIF_ALIST_1)
@@ -692,6 +687,7 @@ BIF_RETTYPE delete_module_1(BIF_ALIST_1)
 	Eterm retval;
 	mod.module = BIF_ARG_1;
 	mod.modp = modp;
+        mod.exception = THE_NON_VALUE;
 	retval = staging_epilogue(BIF_P, success, res, is_blocking, &mod, 1, 0);
 	return retval;
     }
@@ -772,36 +768,45 @@ BIF_RETTYPE finish_after_on_load_2(BIF_ALIST_2)
     ErtsCodeIndex code_ix;
     Module* modp;
 
+    if (BIF_ARG_2 != am_false && BIF_ARG_2 != am_true) {
+	BIF_ERROR(BIF_P, BADARG);
+    }
+
     if (!erts_try_seize_code_write_permission(BIF_P)) {
 	ERTS_BIF_YIELD2(bif_export[BIF_finish_after_on_load_2],
 			BIF_P, BIF_ARG_1, BIF_ARG_2);
     }
 
-    /* ToDo: Use code_ix staging instead of thread blocking */
-
-    erts_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
-    erts_thr_progress_block();
-
     code_ix = erts_active_code_ix();
     modp = erts_get_module(BIF_ARG_1, code_ix);
 
-    if (!modp || !modp->on_load || !modp->on_load->code_hdr) {
-    error:
-	erts_thr_progress_unblock();
-        erts_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+    if (!modp || !modp->on_load || !modp->on_load->code_hdr
+	|| !modp->on_load->code_hdr->on_load_function_ptr) {
+
 	erts_release_code_write_permission();
 	BIF_ERROR(BIF_P, BADARG);
     }
-    if (modp->on_load->code_hdr->on_load_function_ptr == NULL) {
-	goto error;
-    }
-    if (BIF_ARG_2 != am_false && BIF_ARG_2 != am_true) {
-	goto error;
-    }
 
     if (BIF_ARG_2 == am_true) {
+	struct m mods[1];
+	int is_blocking = 0;
 	int i, num_exps;
 
+	erts_start_staging_code_ix(0);
+	code_ix = erts_staging_code_ix();
+	modp = erts_get_module(BIF_ARG_1, code_ix);
+
+	ASSERT(modp && modp->on_load && modp->on_load->code_hdr
+	       && modp->on_load->code_hdr->on_load_function_ptr);
+
+        if (erts_is_default_trace_enabled()
+	    || IF_HIPE(hipe_need_blocking(modp))) {
+
+            erts_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+            erts_thr_progress_block();
+            is_blocking = 1;
+	}
+
 	/*
 	 * Make the code with the on_load function current.
 	 */
@@ -827,19 +832,21 @@ BIF_RETTYPE finish_after_on_load_2(BIF_ALIST_2)
 		ep->beam[1] = 0;
 	    } else {
 		if (ep->addressv[code_ix] == ep->beam &&
-		    ep->beam[0] == (BeamInstr) em_apply_bif) {
+		    BeamIsOpCode(ep->beam[0], op_apply_bif)) {
 		    continue;
 		}
-		ep->addressv[code_ix] = ep->beam;
-		ep->beam[0] = (BeamInstr) em_call_error_handler;
+                ep->addressv[code_ix] = ep->beam;
+                ep->beam[0] = BeamOpCodeAddr(op_call_error_handler);
 	    }
 	}
 	modp->curr.code_hdr->on_load_function_ptr = NULL;
-	set_default_trace_pattern(BIF_ARG_1);
-      #ifdef HIPE
-        hipe_redirect_to_module(modp);
-      #endif
-    } else if (BIF_ARG_2 == am_false) {
+
+	mods[0].modp = modp;
+	mods[0].module = BIF_ARG_1;
+        mods[0].exception = THE_NON_VALUE;
+	return staging_epilogue(BIF_P, 1, am_true, is_blocking, mods, 1, 0);
+    }
+    else if (BIF_ARG_2 == am_false) {
 	int i, num_exps;
 
 	/*
@@ -853,14 +860,12 @@ BIF_RETTYPE finish_after_on_load_2(BIF_ALIST_2)
 	    if (ep == NULL || ep->info.mfa.module != BIF_ARG_1) {
 		continue;
 	    }
-	    if (ep->beam[0] == (BeamInstr) em_apply_bif) {
+	    if (BeamIsOpCode(ep->beam[0], op_apply_bif)) {
 		continue;
 	    }
 	    ep->beam[1] = 0;
 	}
     }
-    erts_thr_progress_unblock();
-    erts_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
     erts_release_code_write_permission();
     BIF_RET(am_true);
 }
@@ -1053,10 +1058,8 @@ erts_proc_copy_literal_area(Process *c_p, int *redsp, int fcalls, int gc_allowed
 
 return_ok:
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (ERTS_SCHEDULER_IS_DIRTY(erts_proc_sched_data(c_p)))
 	c_p->flags &= ~F_DIRTY_CLA;
-#endif
 
     return am_ok;
 
@@ -1071,10 +1074,8 @@ literal_gc:
     *redsp += erts_garbage_collect_literals(c_p, (Eterm *) literals, lit_bsize,
 					    oh, fcalls);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (c_p->flags & F_DIRTY_CLA)
 	return THE_NON_VALUE;
-#endif
 
     return am_ok;
 }
@@ -1774,22 +1775,23 @@ delete_code(Module* modp)
 	Export *ep = export_list(i, code_ix);
         if (ep != NULL && (ep->info.mfa.module == module)) {
 	    if (ep->addressv[code_ix] == ep->beam) {
-		if (ep->beam[0] == (BeamInstr) em_apply_bif) {
+		if (BeamIsOpCode(ep->beam[0], op_apply_bif)) {
 		    continue;
 		}
-		else if (ep->beam[0] ==
-			 (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
+		else if (BeamIsOpCode(ep->beam[0], op_i_generic_breakpoint)) {
 		    ERTS_LC_ASSERT(erts_thr_progress_is_blocking());
 		    ASSERT(modp->curr.num_traced_exports > 0);
 		    DBG_TRACE_MFA_P(&ep->info.mfa,
 				  "export trace cleared, code_ix=%d", code_ix);
 		    erts_clear_export_break(modp, &ep->info);
 		}
-		else ASSERT(ep->beam[0] == (BeamInstr) em_call_error_handler
-			    || !erts_initialized);
-	    }
+		else {
+                    ASSERT(BeamIsOpCode(ep->beam[0], op_call_error_handler) ||
+                           !erts_initialized);
+                }
+            }
 	    ep->addressv[code_ix] = ep->beam;
-	    ep->beam[0] = (BeamInstr) em_call_error_handler;
+	    ep->beam[0] = BeamOpCodeAddr(op_call_error_handler);
 	    ep->beam[1] = 0;
 	    DBG_TRACE_MFA_P(&ep->info.mfa,
 			    "export invalidation, code_ix=%d", code_ix);
diff --git a/erts/emulator/beam/beam_bp.c b/erts/emulator/beam/beam_bp.c
index 79a75f6698..fe1e15701b 100644
--- a/erts/emulator/beam/beam_bp.c
+++ b/erts/emulator/beam/beam_bp.c
@@ -75,9 +75,7 @@ extern BeamInstr beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */
 
 erts_atomic32_t erts_active_bp_index;
 erts_atomic32_t erts_staging_bp_index;
-#ifdef ERTS_DIRTY_SCHEDULERS
 erts_mtx_t erts_dirty_bp_ix_mtx;
-#endif
 
 /*
  * Inlined helpers
@@ -94,22 +92,18 @@ acquire_bp_sched_ix(Process *c_p)
 {
     ErtsSchedulerData *esdp = erts_proc_sched_data(c_p);
     ASSERT(esdp);
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (ERTS_SCHEDULER_IS_DIRTY(esdp)) {
 	erts_mtx_lock(&erts_dirty_bp_ix_mtx);
         return (Uint32) erts_no_schedulers;
     }
-#endif
     return (Uint32) esdp->no - 1;
 }
 
 static ERTS_INLINE void
 release_bp_sched_ix(Uint32 ix)
 {
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (ix == (Uint32) erts_no_schedulers)
         erts_mtx_unlock(&erts_dirty_bp_ix_mtx);
-#endif
 }
 
 
@@ -164,10 +158,8 @@ void
 erts_bp_init(void) {
     erts_atomic32_init_nob(&erts_active_bp_index, 0);
     erts_atomic32_init_nob(&erts_staging_bp_index, 1);
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_mtx_init(&erts_dirty_bp_ix_mtx, "dirty_break_point_index", NIL,
         ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_DEBUG);
-#endif
 }
 
 
@@ -211,7 +203,7 @@ erts_bp_match_functions(BpFunctions* f, ErtsCodeMFA *mfa, int specified)
 	for (fi = 0; fi < num_functions; fi++) {
 
 	    ci = code_hdr->functions[fi];
-	    ASSERT(ci->op == (BeamInstr) BeamOp(op_i_func_info_IaaI));
+	    ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI));
 	    if (erts_is_function_native(ci)) {
 		continue;
 	    }
@@ -273,11 +265,11 @@ erts_bp_match_export(BpFunctions* f, ErtsCodeMFA *mfa, int specified)
 
 	pc = ep->beam;
 	if (ep->addressv[code_ix] == pc) {
-	    if ((*pc == (BeamInstr) em_apply_bif ||
-		 *pc == (BeamInstr) em_call_error_handler)) {
-		continue;
+	    if (BeamIsOpCode(*pc, op_apply_bif) ||
+                BeamIsOpCode(*pc, op_call_error_handler)) {
+                continue;
 	    }
-	    ASSERT(*pc == (BeamInstr) BeamOp(op_i_generic_breakpoint));
+	    ASSERT(BeamIsOpCode(*pc, op_i_generic_breakpoint));
 	} else if (erts_is_function_native(erts_code_to_codeinfo(ep->addressv[code_ix]))) {
 	    continue;
 	}
@@ -374,8 +366,8 @@ consolidate_bp_data(Module* modp, ErtsCodeInfo *ci, int local)
 	    }
 	    ASSERT(modp->curr.num_breakpoints >= 0);
 	    ASSERT(modp->curr.num_traced_exports >= 0);
-	    ASSERT(*erts_codeinfo_to_code(ci) !=
-                   (BeamInstr) BeamOp(op_i_generic_breakpoint));
+	    ASSERT(! BeamIsOpCode(*erts_codeinfo_to_code(ci),
+                                  op_i_generic_breakpoint));
 	}
 	ci->u.gen_bp = NULL;
 	Free(g);
@@ -423,13 +415,15 @@ erts_install_breakpoints(BpFunctions* f)
 {
     Uint i;
     Uint n = f->matched;
-    BeamInstr br = (BeamInstr) BeamOp(op_i_generic_breakpoint);
+    BeamInstr br = BeamOpCodeAddr(op_i_generic_breakpoint);
 
     for (i = 0; i < n; i++) {
 	ErtsCodeInfo* ci = f->matching[i].ci;
-        BeamInstr *pc = erts_codeinfo_to_code(ci);
 	GenericBp* g = ci->u.gen_bp;
-	if (*pc != br && g) {
+        BeamInstr volatile *pc = erts_codeinfo_to_code(ci);
+        BeamInstr instr = *pc;
+
+	if (!BeamIsOpCode(instr, op_i_generic_breakpoint) && g) {
 	    Module* modp = f->matching[i].mod;
 
 	    /*
@@ -443,11 +437,16 @@ erts_install_breakpoints(BpFunctions* f)
 	    /*
 	     * The following write is not protected by any lock. We
 	     * assume that the hardware guarantees that a write of an
-	     * aligned word-size (or half-word) writes is atomic
-	     * (i.e. that other processes executing this code will not
-	     * see a half pointer).
+	     * aligned word-size writes is atomic (i.e. that other
+	     * processes executing this code will not see a half
+	     * pointer).
+             *
+             * The contents of *pc is marked 'volatile' to ensure that
+             * the compiler will do a single full-word write, and not
+             * try any fancy optimizations to write a half word.
 	     */
-	    *pc = br;
+            instr = BeamSetCodeAddr(instr, br);
+            *pc = instr;
 	    modp->curr.num_breakpoints++;
 	}
     }
@@ -468,7 +467,7 @@ static void
 uninstall_breakpoint(ErtsCodeInfo *ci)
 {
     BeamInstr *pc = erts_codeinfo_to_code(ci);
-    if (*pc == (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
+    if (BeamIsOpCode(*pc, op_i_generic_breakpoint)) {
 	GenericBp* g = ci->u.gen_bp;
 	if (g->data[erts_active_bp_ix()].flags == 0) {
 	    /*
@@ -642,6 +641,49 @@ erts_clear_export_break(Module* modp, ErtsCodeInfo *ci)
     ASSERT(ci->u.gen_bp == NULL);
 }
 
+/*
+ * If c_p->cp is a trace return instruction, we set cp
+ * to be the place where we again start to execute code.
+ *
+ * cp is used by match spec {caller} to get the calling
+ * function, and if we don't do this fixup it will be
+ * 'undefined'. This has the odd side effect of {caller}
+ * not really being which function is the caller, but
+ * rather which function we are about to return to.
+ */
+static void fixup_cp_before_trace(Process *c_p, int *return_to_trace)
+{
+    Eterm *cpp, *E = c_p->stop;
+    BeamInstr w = *c_p->cp;
+    if (BeamIsOpCode(w, op_return_trace)) {
+        cpp = &E[2];
+    } else if (BeamIsOpCode(w, op_i_return_to_trace)) {
+        *return_to_trace = 1;
+        cpp = &E[0];
+    } else if (BeamIsOpCode(w, op_i_return_time_trace)) {
+        cpp = &E[0];
+    } else {
+        cpp = NULL;
+    }
+    if (cpp) {
+        for (;;) {
+            BeamInstr w = *cp_val(*cpp);
+            if (BeamIsOpCode(w, op_return_trace)) {
+                cpp += 3;
+            } else if (BeamIsOpCode(w, op_i_return_to_trace)) {
+                *return_to_trace = 1;
+                cpp += 1;
+            } else if (BeamIsOpCode(w, op_i_return_time_trace)) {
+                cpp += 2;
+            } else {
+                break;
+            }
+        }
+        c_p->cp = (BeamInstr *) cp_val(*cpp);
+        ASSERT(is_CP(*cpp));
+    }
+}
+
 BeamInstr
 erts_generic_breakpoint(Process* c_p, ErtsCodeInfo *info, Eterm* reg)
 {
@@ -650,7 +692,7 @@ erts_generic_breakpoint(Process* c_p, ErtsCodeInfo *info, Eterm* reg)
     Uint bp_flags;
     ErtsBpIndex ix = erts_active_bp_ix();
 
-    ASSERT(info->op == (BeamInstr) BeamOp(op_i_func_info_IaaI));
+    ASSERT(BeamIsOpCode(info->op, op_i_func_info_IaaI));
 
     g = info->u.gen_bp;
     bp = &g->data[ix];
@@ -703,9 +745,9 @@ erts_generic_breakpoint(Process* c_p, ErtsCodeInfo *info, Eterm* reg)
 	Eterm w;
 	erts_trace_time_call(c_p, info, bp->time);
 	w = (BeamInstr) *c_p->cp;
-	if (! (w == (BeamInstr) BeamOp(op_i_return_time_trace) ||
-	       w == (BeamInstr) BeamOp(op_return_trace) ||
-	       w == (BeamInstr) BeamOp(op_i_return_to_trace)) ) {
+	if (! (BeamIsOpCode(w, op_i_return_time_trace) ||
+	       BeamIsOpCode(w, op_return_trace) ||
+               BeamIsOpCode(w, op_i_return_to_trace)) ) {
 	    Eterm* E = c_p->stop;
 	    ASSERT(c_p->htop <= E && E <= c_p->hend);
 	    if (E - 2 < c_p->htop) {
@@ -725,7 +767,7 @@ erts_generic_breakpoint(Process* c_p, ErtsCodeInfo *info, Eterm* reg)
     }
 
     if (bp_flags & ERTS_BPF_DEBUG) {
-	return (BeamInstr) BeamOp(op_i_debug_breakpoint);
+	return BeamOpCodeAddr(op_i_debug_breakpoint);
     } else {
 	return g->orig_instr;
     }
@@ -752,6 +794,7 @@ erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr* I)
     GenericBp* g;
     GenericBpData* bp = NULL;
     Uint bp_flags = 0;
+    int return_to_trace = 0;
 
     ERTS_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
 
@@ -767,6 +810,8 @@ erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr* I)
      */
     if (!applying) {
 	p->cp = I;
+    } else {
+        fixup_cp_before_trace(p, &return_to_trace);
     }
     if (bp_flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE) &&
 	IS_TRACED_FL(p, F_TRACE_CALLS)) {
@@ -945,49 +990,18 @@ static ErtsTracer
 do_call_trace(Process* c_p, ErtsCodeInfo* info, Eterm* reg,
 	      int local, Binary* ms, ErtsTracer tracer)
 {
-    Eterm* cpp;
     int return_to_trace = 0;
-    BeamInstr w;
     BeamInstr *cp_save = c_p->cp;
     Uint32 flags;
     Uint need = 0;
     Eterm* E = c_p->stop;
 
-    w = *c_p->cp;
-    if (w == (BeamInstr) BeamOp(op_return_trace)) {
-	cpp = &E[2];
-    } else if (w == (BeamInstr) BeamOp(op_i_return_to_trace)) {
-	return_to_trace = 1;
-	cpp = &E[0];
-    } else if (w == (BeamInstr) BeamOp(op_i_return_time_trace)) {
-	cpp = &E[0];
-    } else {
-	cpp = NULL;
-    }
-    if (cpp) {
-	for (;;) {
-	    BeamInstr w = *cp_val(*cpp);
-	    if (w == (BeamInstr) BeamOp(op_return_trace)) {
-		cpp += 3;
-	    } else if (w == (BeamInstr) BeamOp(op_i_return_to_trace)) {
-		return_to_trace = 1;
-		cpp += 1;
-	    } else if (w == (BeamInstr) BeamOp(op_i_return_time_trace)) {
-		cpp += 2;
-	    } else {
-		break;
-	    }
-	}
-	cp_save = c_p->cp;
-	c_p->cp = (BeamInstr *) cp_val(*cpp);
-	ASSERT(is_CP(*cpp));
-    }
-    ERTS_UNREQ_PROC_MAIN_LOCK(c_p);
+    fixup_cp_before_trace(c_p, &return_to_trace);
+
     flags = erts_call_trace(c_p, info, ms, reg, local, &tracer);
-    ERTS_REQ_PROC_MAIN_LOCK(c_p);
-    if (cpp) {
-	c_p->cp = cp_save;
-    }
+
+    /* restore cp after potential fixup */
+    c_p->cp = cp_save;
 
     ASSERT(!ERTS_PROC_IS_EXITING(c_p));
     if ((flags & MATCH_SET_RETURN_TO_TRACE) && !return_to_trace) {
@@ -1301,7 +1315,7 @@ erts_find_local_func(ErtsCodeMFA *mfa) {
     n = (BeamInstr) code_hdr->num_functions;
     for (i = 0; i < n; ++i) {
 	ci = code_hdr->functions[i];
-	ASSERT(((BeamInstr) BeamOp(op_i_func_info_IaaI)) == ci->op);
+	ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI));
 	ASSERT(mfa->module == ci->mfa.module || is_nil(ci->mfa.module));
 	if (mfa->function == ci->mfa.function &&
 	    mfa->arity == ci->mfa.arity) {
@@ -1585,11 +1599,7 @@ set_function_break(ErtsCodeInfo *ci, Binary *match_spec, Uint break_flags,
 	ASSERT((bp->flags & ERTS_BPF_TIME_TRACE) == 0);
 	bdt = Alloc(sizeof(BpDataTime));
 	erts_refc_init(&bdt->refc, 1);
-#ifdef ERTS_DIRTY_SCHEDULERS
 	bdt->n = erts_no_schedulers + 1;
-#else
-	bdt->n = erts_no_schedulers;
-#endif
 	bdt->hash = Alloc(sizeof(bp_time_hash_t)*(bdt->n));
 	for (i = 0; i < bdt->n; i++) {
 	    bp_hash_init(&(bdt->hash[i]), 32);
@@ -1720,7 +1730,7 @@ check_break(ErtsCodeInfo *ci, Uint break_flags)
 {
     GenericBp* g = ci->u.gen_bp;
 
-    ASSERT(ci->op == (BeamInstr) BeamOp(op_i_func_info_IaaI));
+    ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI));
     if (erts_is_function_native(ci)) {
 	return 0;
     }
diff --git a/erts/emulator/beam/beam_bp.h b/erts/emulator/beam/beam_bp.h
index 1e1f6a7534..a64765822b 100644
--- a/erts/emulator/beam/beam_bp.h
+++ b/erts/emulator/beam/beam_bp.h
@@ -79,9 +79,7 @@ typedef struct generic_bp {
 #define ERTS_BP_CALL_TIME_SCHEDULE_OUT     (1)
 #define ERTS_BP_CALL_TIME_SCHEDULE_EXITING (2)
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 extern erts_mtx_t erts_dirty_bp_ix_mtx;
-#endif
 
 enum erts_break_op{
     ERTS_BREAK_NOP   =  0, /* Must be false */
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c
index 49414ae8fc..70078c8c59 100644
--- a/erts/emulator/beam/beam_debug.c
+++ b/erts/emulator/beam/beam_debug.c
@@ -53,6 +53,8 @@ void dbg_where(BeamInstr* addr, Eterm x0, Eterm* reg);
 
 static int print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr);
 static void print_bif_name(fmtfn_t to, void* to_arg, BifFunction bif);
+static BeamInstr* f_to_addr(BeamInstr* base, int op, BeamInstr* ap);
+static BeamInstr* f_to_addr_packed(BeamInstr* base, int op, Sint32* ap);
 
 BIF_RETTYPE
 erts_debug_same_2(BIF_ALIST_2)
@@ -197,9 +199,9 @@ void debug_dump_code(BeamInstr *I, int num)
 	erts_print(ERTS_PRINT_DSBUF, (void *) dsbufp, HEXF ": ", code_ptr);
 	instr = (BeamInstr) code_ptr[0];
 	for (i = 0; i < NUM_SPECIFIC_OPS; i++) {
-	    if (instr == (BeamInstr) BeamOp(i) && opc[i].name[0] != '\0') {
+	    if (BeamIsOpCode(instr, i) && opc[i].name[0] != '\0') {
 		code_ptr += print_op(ERTS_PRINT_DSBUF, (void *) dsbufp,
-				     i, opc[i].sz-1, code_ptr+1) + 1;
+				     i, opc[i].sz-1, code_ptr) + 1;
 		break;
 	    }
 	}
@@ -317,9 +319,9 @@ erts_debug_disassemble_1(BIF_ALIST_1)
     erts_print(ERTS_PRINT_DSBUF, (void *) dsbufp, HEXF ": ", code_ptr);
     instr = (BeamInstr) code_ptr[0];
     for (i = 0; i < NUM_SPECIFIC_OPS; i++) {
-	if (instr == (BeamInstr) BeamOp(i) && opc[i].name[0] != '\0') {
+	if (BeamIsOpCode(instr, i) && opc[i].name[0] != '\0') {
 	    code_ptr += print_op(ERTS_PRINT_DSBUF, (void *) dsbufp,
-				 i, opc[i].sz-1, code_ptr+1) + 1;
+				 i, opc[i].sz-1, code_ptr) + 1;
 	    break;
 	}
     }
@@ -403,8 +405,11 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
 	 * Avoid copying because instructions containing bignum operands
 	 * are bigger than actually declared.
 	 */
-	ap = (BeamInstr *) addr;
+        addr++;
+        ap = addr;
     } else {
+        BeamInstr instr_word = addr++[0];
+
 	/*
 	 * Copy all arguments to a local buffer for the unpacking.
 	 */
@@ -424,26 +429,27 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
 	while (start_prog < prog) {
 	    prog--;
 	    switch (*prog) {
+	    case 'f':
 	    case 'g':
+	    case 'q':
 		*ap++ = *--sp;
 		break;
-	    case 'i':		/* Initialize packing accumulator. */
-		*ap++ = packed;
-		break;
-	    case 's':
-		*ap++ = packed & 0x3ff;
-		packed >>= 10;
+#ifdef ARCH_64
+	    case '1':		/* Tightest shift */
+		*ap++ = (packed & BEAM_TIGHTEST_MASK) << 3;
+		packed >>= BEAM_TIGHTEST_SHIFT;
 		break;
-	    case '0':		/* Tight shift */
+#endif
+	    case '2':		/* Tight shift */
 		*ap++ = packed & BEAM_TIGHT_MASK;
 		packed >>= BEAM_TIGHT_SHIFT;
 		break;
-	    case '6':		/* Shift 16 steps */
+	    case '3':		/* Loose shift */
 		*ap++ = packed & BEAM_LOOSE_MASK;
 		packed >>= BEAM_LOOSE_SHIFT;
 		break;
 #ifdef ARCH_64
-	    case 'w':		/* Shift 32 steps */
+	    case '4':		/* Shift 32 steps */
 		*ap++ = packed & BEAM_WIDE_MASK;
 		packed >>= BEAM_WIDE_SHIFT;
 		break;
@@ -454,8 +460,18 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
 	    case 'P':
 		packed = *--sp;
 		break;
+#if defined(ARCH_64) && defined(CODE_MODEL_SMALL)
+            case '#':       /* -1 */
+            case '$':       /* -2 */
+            case '%':       /* -3 */
+            case '&':       /* -4 */
+            case '\'':      /* -5 */
+            case '(':       /* -6 */
+                packed = (packed << BEAM_WIDE_SHIFT) | BeamExtraData(instr_word);
+		break;
+#endif
 	    default:
-		ASSERT(0);
+                erts_exit(ERTS_ERROR_EXIT, "beam_debug: invalid packing op: %c\n", *prog);
 	    }
 	}
 	ap = args;
@@ -489,6 +505,14 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
 	case 'n':		/* Nil */
 	    erts_print(to, to_arg, "[]");
 	    break;
+        case 'S':               /* Register */
+            {
+                Uint reg_type = (*ap & 1) ? 'y' : 'x';
+                Uint n = ap[0] / sizeof(Eterm);
+                erts_print(to, to_arg, "%c(%d)", reg_type, n);
+		ap++;
+                break;
+            }
 	case 's':		/* Any source (tagged constant or register) */
 	    tag = loader_tag(*ap);
 	    if (tag == LOADER_X_REG) {
@@ -550,9 +574,10 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
 	    break;
 	case 'f':		/* Destination label */
 	    {
-		ErtsCodeMFA* cmfa = find_function_from_pc((BeamInstr *)*ap);
-		if (!cmfa || erts_codemfa_to_code(cmfa) != (BeamInstr *) *ap) {
-		    erts_print(to, to_arg, "f(" HEXF ")", *ap);
+                BeamInstr* target = f_to_addr(addr, op, ap);
+		ErtsCodeMFA* cmfa = find_function_from_pc(target);
+		if (!cmfa || erts_codemfa_to_code(cmfa) != target) {
+		    erts_print(to, to_arg, "f(" HEXF ")", target);
 		} else {
 		    erts_print(to, to_arg, "%T:%T/%bpu", cmfa->module,
                                cmfa->function, cmfa->arity);
@@ -562,18 +587,18 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
 	    break;
 	case 'p':		/* Pointer (to label) */
 	    {
-		ErtsCodeMFA* cmfa = find_function_from_pc((BeamInstr *)*ap);
-		if (!cmfa || erts_codemfa_to_code(cmfa) != (BeamInstr *) *ap) {
-		    erts_print(to, to_arg, "p(" HEXF ")", *ap);
-		} else {
-		    erts_print(to, to_arg, "%T:%T/%bpu", cmfa->module,
-                               cmfa->function, cmfa->arity);
-		}
+                BeamInstr* target = f_to_addr(addr, op, ap);
+                erts_print(to, to_arg, "p(" HEXF ")", target);
 		ap++;
 	    }
 	    break;
 	case 'j':		/* Pointer (to label) */
-	    erts_print(to, to_arg, "j(" HEXF ")", *ap);
+            if (*ap == 0) {
+                erts_print(to, to_arg, "j(0)");
+            } else {
+                BeamInstr* target = f_to_addr(addr, op, ap);
+                erts_print(to, to_arg, "j(" HEXF ")", target);
+            }
 	    ap++;
 	    break;
 	case 'e':		/* Export entry */
@@ -616,12 +641,22 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
 
     unpacked = ap;
     ap = addr + size;
+
+    /*
+     * In the code below, never use ap[-1], ap[-2], ...
+     * (will not work if the arguments have been packed).
+     *
+     * Instead use unpacked[-1], unpacked[-2], ...
+     */
     switch (op) {
     case op_i_select_val_lins_xfI:
     case op_i_select_val_lins_yfI:
+    case op_i_select_val_bins_xfI:
+    case op_i_select_val_bins_yfI:
 	{
-	    int n = ap[-1];
+	    int n = unpacked[-1];
 	    int ix = n;
+            Sint32* jump_tab = (Sint32 *)(ap + n);
 
 	    while (ix--) {
 		erts_print(to, to_arg, "%T ", (Eterm) ap[0]);
@@ -630,30 +665,19 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
 	    }
 	    ix = n;
 	    while (ix--) {
-		erts_print(to, to_arg, "f(" HEXF ") ", (Eterm) ap[0]);
-		ap++;
-		size++;
-	    }
-	}
-	break;
-    case op_i_select_val_bins_xfI:
-    case op_i_select_val_bins_yfI:
-	{
-	    int n = ap[-1];
-
-	    while (n > 0) {
-		erts_print(to, to_arg, "%T f(" HEXF ") ", (Eterm) ap[0], ap[1]);
-		ap += 2;
-		size += 2;
-		n--;
+                BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
+		erts_print(to, to_arg, "f(" HEXF ") ", target);
+                jump_tab++;
 	    }
+            size += (n+1) / 2;
 	}
 	break;
     case op_i_select_tuple_arity_xfI:
     case op_i_select_tuple_arity_yfI:
         {
-            int n = ap[-1];
+            int n = unpacked[-1];
             int ix = n - 1; /* without sentinel */
+            Sint32* jump_tab = (Sint32 *)(ap + n);
 
             while (ix--) {
                 Uint arity = arityval(ap[0]);
@@ -667,31 +691,54 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
             size++;
             ix = n;
             while (ix--) {
-                erts_print(to, to_arg, "f(" HEXF ") ", ap[0]);
-                ap++;
-                size++;
+                BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
+                erts_print(to, to_arg, "f(" HEXF ") ", target);
+                jump_tab++;
+            }
+            size += (n+1) / 2;
+        }
+        break;
+    case op_i_select_val2_xfcc:
+    case op_i_select_val2_yfcc:
+    case op_i_select_tuple_arity2_xfAA:
+    case op_i_select_tuple_arity2_yfAA:
+        {
+            Sint32* jump_tab = (Sint32 *) ap;
+            BeamInstr* target;
+            int i;
+
+            for (i = 0; i < 2; i++) {
+                target = f_to_addr_packed(addr, op, jump_tab++);
+                erts_print(to, to_arg, "f(" HEXF ") ", target);
             }
+            size += 1;
         }
         break;
     case op_i_jump_on_val_xfIW:
     case op_i_jump_on_val_yfIW:
 	{
-	    int n;
-	    for (n = ap[-2]; n > 0; n--) {
-		erts_print(to, to_arg, "f(" HEXF ") ", ap[0]);
-		ap++;
-		size++;
+	    int n = unpacked[-2];
+            Sint32* jump_tab = (Sint32 *) ap;
+
+            size += (n+1) / 2;
+            while (n-- > 0) {
+                BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
+		erts_print(to, to_arg, "f(" HEXF ") ", target);
+                jump_tab++;
 	    }
 	}
 	break;
     case op_i_jump_on_val_zero_xfI:
     case op_i_jump_on_val_zero_yfI:
 	{
-	    int n;
-	    for (n = ap[-1]; n > 0; n--) {
-		erts_print(to, to_arg, "f(" HEXF ") ", ap[0]);
-		ap++;
-		size++;
+	    int n = unpacked[-1];
+            Sint32* jump_tab = (Sint32 *) ap;
+
+            size += (n+1) / 2;
+            while (n-- > 0) {
+                BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
+		erts_print(to, to_arg, "f(" HEXF ") ", target);
+                jump_tab++;
 	    }
 	}
 	break;
@@ -709,7 +756,7 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
 		    erts_print(to, to_arg, " x(%d)", loader_x_reg_index(ap[0]));
 		    break;
 		case LOADER_Y_REG:
-		    erts_print(to, to_arg, " x(%d)", loader_y_reg_index(ap[0]));
+		    erts_print(to, to_arg, " y(%d)", loader_y_reg_index(ap[0]) - CP_SIZE);
 		    break;
 		default:
 		    erts_print(to, to_arg, " %T", (Eterm) ap[0]);
@@ -730,7 +777,7 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
                     erts_print(to, to_arg, " x(%d)", loader_x_reg_index(ap[0]));
                     break;
                 case LOADER_Y_REG:
-		    erts_print(to, to_arg, " x(%d)", loader_y_reg_index(ap[0]));
+		    erts_print(to, to_arg, " y(%d)", loader_y_reg_index(ap[0]) - CP_SIZE);
 		    break;
                 default:
 		    erts_print(to, to_arg, " %T", (Eterm) ap[0]);
@@ -753,7 +800,7 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
 			erts_print(to, to_arg, " x(%d)", loader_x_reg_index(ap[0]));
 			break;
 		    case LOADER_Y_REG:
-			erts_print(to, to_arg, " y(%d)", loader_y_reg_index(ap[0]));
+			erts_print(to, to_arg, " y(%d)", loader_y_reg_index(ap[0]) - CP_SIZE);
 			break;
 		    default:
 			erts_print(to, to_arg, " %T", (Eterm) ap[0]);
@@ -788,6 +835,17 @@ static void print_bif_name(fmtfn_t to, void* to_arg, BifFunction bif)
     }
 }
 
+static BeamInstr* f_to_addr(BeamInstr* base, int op, BeamInstr* ap)
+{
+    return base - 1 + opc[op].adjust + (Sint32) *ap;
+}
+
+static BeamInstr* f_to_addr_packed(BeamInstr* base, int op, Sint32* ap)
+{
+    return base - 1 + opc[op].adjust + *ap;
+}
+
+
 /*
  * Dirty BIF testing.
  *
@@ -796,10 +854,8 @@ static void print_bif_name(fmtfn_t to, void* to_arg, BifFunction bif)
  * test suite.
  */
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 static int ms_wait(Process *c_p, Eterm etimeout, int busy);
 static int dirty_send_message(Process *c_p, Eterm to, Eterm tag);
-#endif
 static BIF_RETTYPE dirty_test(Process *c_p, Eterm type, Eterm arg1, Eterm arg2, UWord *I);
 
 /*
@@ -828,7 +884,6 @@ erts_debug_dirty_io_2(BIF_ALIST_2)
 BIF_RETTYPE
 erts_debug_dirty_3(BIF_ALIST_3)
 {
-#ifdef ERTS_DIRTY_SCHEDULERS
     Eterm argv[2];
     switch (BIF_ARG_1) {
     case am_normal:
@@ -858,9 +913,6 @@ erts_debug_dirty_3(BIF_ALIST_3)
     default:
 	BIF_ERROR(BIF_P, EXC_BADARG);
     }
-#else
-	BIF_ERROR(BIF_P, EXC_UNDEF);
-#endif
 }
 
 
@@ -868,7 +920,6 @@ static BIF_RETTYPE
 dirty_test(Process *c_p, Eterm type, Eterm arg1, Eterm arg2, UWord *I)
 {
     BIF_RETTYPE ret;
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (am_scheduler == arg1) {
 	ErtsSchedulerData *esdp;
 	if (arg2 != am_type) 
@@ -1054,13 +1105,9 @@ dirty_test(Process *c_p, Eterm type, Eterm arg1, Eterm arg2, UWord *I)
     badarg:
 	ERTS_BIF_PREP_ERROR(ret, c_p, BADARG);
     }
-#else
-    ERTS_BIF_PREP_ERROR(ret, c_p, EXC_UNDEF);
-#endif
     return ret;
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 static int
 dirty_send_message(Process *c_p, Eterm to, Eterm tag)
@@ -1147,7 +1194,6 @@ ms_wait(Process *c_p, Eterm etimeout, int busy)
     return 1;
 }
 
-#endif /* ERTS_DIRTY_SCHEDULERS */
 
 #  define ERTS_STACK_LIMIT ((char *) ethr_get_stacklimit())
 
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index 2c37dc42b3..60d0008d8f 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -50,15 +50,16 @@
 #if defined(NO_JUMP_TABLE)
 #  define OpCase(OpCode)    case op_##OpCode
 #  define CountCase(OpCode) case op_count_##OpCode
-#  define OpCode(OpCode)    ((Uint*)op_##OpCode)
-#  define Goto(Rel) {Go = (int)(UWord)(Rel); goto emulator_loop;}
-#  define LabelAddr(Addr) &&##Addr
+#  define IsOpCode(InstrWord, OpCode)  (BeamCodeAddr(InstrWord) == (BeamInstr)op_##OpCode)
+#  define Goto(Rel)         {Go = BeamCodeAddr(Rel); goto emulator_loop;}
+#  define GotoPF(Rel)       Goto(Rel)
 #else
 #  define OpCase(OpCode)    lb_##OpCode
 #  define CountCase(OpCode) lb_count_##OpCode
-#  define Goto(Rel) goto *((void *)Rel)
-#  define LabelAddr(Label) &&Label
-#  define OpCode(OpCode)  (&&lb_##OpCode)
+#  define IsOpCode(InstrWord, OpCode)  (BeamCodeAddr(InstrWord) == (BeamInstr)&&lb_##OpCode)
+#  define Goto(Rel)         goto *((void *)BeamCodeAddr(Rel))
+#  define GotoPF(Rel)       goto *((void *)Rel)
+#  define LabelAddr(Label)  &&Label
 #endif
 
 #ifdef ERTS_ENABLE_LOCK_CHECK
@@ -107,9 +108,7 @@ do {                                     \
 #  define CHECK_ARGS(T)
 #endif
 
-#ifndef MAX
-#define MAX(x, y) (((x) > (y)) ? (x) : (y))
-#endif
+#define CHECK_ALIGNED(Dst) ASSERT((((Uint)&Dst) & (sizeof(Uint)-1)) == 0)
 
 #define GET_BIF_MODULE(p)  (p->info.mfa.module)
 #define GET_BIF_FUNCTION(p)  (p->info.mfa.function)
@@ -134,11 +133,11 @@ do {                                     \
 
 /* We don't check the range if an ordinary switch is used */
 #ifdef NO_JUMP_TABLE
-#define VALID_INSTR(IP) ((UWord)(IP) < (NUMBER_OF_OPCODES*2+10))
+#  define VALID_INSTR(IP) (BeamCodeAddr(IP) < (NUMBER_OF_OPCODES*2+10))
 #else
-#define VALID_INSTR(IP) \
-   ((SWord)LabelAddr(emulator_loop) <= (SWord)(IP) && \
-    (SWord)(IP) < (SWord)LabelAddr(end_emulator_loop))
+#  define VALID_INSTR(IP) \
+    ((BeamInstr)LabelAddr(emulator_loop) <= BeamCodeAddr(IP) && \
+     BeamCodeAddr(IP) < (BeamInstr)LabelAddr(end_emulator_loop))
 #endif /* NO_JUMP_TABLE */
 
 #define SET_CP(p, ip)           \
@@ -163,11 +162,6 @@ BeamInstr beam_apply[2];
 BeamInstr beam_exit[1];
 BeamInstr beam_continue_exit[1];
 
-BeamInstr* em_call_error_handler;
-BeamInstr* em_apply_bif;
-BeamInstr* em_call_nif;
-BeamInstr* em_call_bif_e;
-
 
 /* NOTE These should be the only variables containing trace instructions.
 **      Sometimes tests are form the instruction value, and sometimes
@@ -239,16 +233,21 @@ void** beam_ops;
      ERTS_UNREQ_PROC_MAIN_LOCK((P))
 
 #define db(N) (N)
+#define fb(N) ((Sint)(Sint32)(N))
+#define jb(N) ((Sint)(Sint32)(N))
 #define tb(N) (N)
-#define xb(N) (*(Eterm *) (((unsigned char *)reg) + (N)))
-#define yb(N) (*(Eterm *) (((unsigned char *)E) + (N)))
+#define xb(N) (*ADD_BYTE_OFFSET(reg, N))
+#define yb(N) (*ADD_BYTE_OFFSET(E, N))
 #define Sb(N) (*REG_TARGET_PTR(N))
 #define lb(N) (*(double *) (((unsigned char *)&(freg[0].fd)) + (N)))
 #define Qb(N) (N)
 #define Ib(N) (N)
+
 #define x(N) reg[N]
 #define y(N) E[N]
 #define r(N) x(N)
+#define Q(N) (N*sizeof(Eterm *))
+#define l(N) (freg[N].fd)
 
 /*
  * Check that we haven't used the reductions and jump to function pointed to by
@@ -257,8 +256,8 @@ void** beam_ops;
 
 #define DispatchMacro()				\
   do {						\
-     BeamInstr* dis_next;				\
-     dis_next = (BeamInstr *) *I;			\
+     BeamInstr dis_next;                        \
+     dis_next = *I;                             \
      CHECK_ARGS(I);				\
      if (FCALLS > 0 || FCALLS > neg_o_reds) {	\
         FCALLS--;				\
@@ -266,12 +265,12 @@ void** beam_ops;
      } else {					\
 	goto context_switch;			\
      }						\
- } while (0)
+ } while (0)                                    \
 
 #define DispatchMacroFun()			\
   do {						\
-     BeamInstr* dis_next;				\
-     dis_next = (BeamInstr *) *I;			\
+     BeamInstr dis_next;                        \
+     dis_next = *I;                             \
      CHECK_ARGS(I);				\
      if (FCALLS > 0 || FCALLS > neg_o_reds) {	\
         FCALLS--;				\
@@ -281,23 +280,23 @@ void** beam_ops;
      }						\
  } while (0)
 
-#define DispatchMacrox()					\
-  do {								\
-     if (FCALLS > 0) {						\
-        Eterm* dis_next;					\
-        SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]); \
-        dis_next = (Eterm *) *I;				\
-        FCALLS--;						\
-        CHECK_ARGS(I);						\
-        Goto(dis_next);						\
-     } else if (ERTS_PROC_GET_SAVED_CALLS_BUF(c_p)		\
-		&& FCALLS > neg_o_reds) {			\
-        goto save_calls1;					\
-     } else {							\
-        SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]); \
-        CHECK_ARGS(I);						\
-	goto context_switch;					\
-     }								\
+#define DispatchMacrox()                                                \
+  do {                                                                  \
+     if (FCALLS > 0) {                                                  \
+        BeamInstr dis_next;                                             \
+        SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]);    \
+        dis_next = *I;                                                  \
+        FCALLS--;                                                       \
+        CHECK_ARGS(I);                                                  \
+        Goto(dis_next);                                                 \
+     } else if (ERTS_PROC_GET_SAVED_CALLS_BUF(c_p)                      \
+		&& FCALLS > neg_o_reds) {                               \
+        goto save_calls1;                                               \
+     } else {                                                           \
+        SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]);    \
+        CHECK_ARGS(I);                                                  \
+	goto context_switch;                                            \
+     }                                                                  \
  } while (0)
 
 #ifdef DEBUG
@@ -384,6 +383,7 @@ do {                                            \
  * The following functions are called directly by process_main().
  * Don't inline them.
  */
+static void init_emulator_finish(void) NOINLINE;
 static ErtsCodeMFA *ubif2mfa(void* uf) NOINLINE;
 static ErtsCodeMFA *gcbif2mfa(void* gcf) NOINLINE;
 static BeamInstr* handle_error(Process* c_p, BeamInstr* pc,
@@ -392,9 +392,8 @@ static BeamInstr* call_error_handler(Process* p, ErtsCodeMFA* mfa,
 				     Eterm* reg, Eterm func) NOINLINE;
 static BeamInstr* fixed_apply(Process* p, Eterm* reg, Uint arity,
 			      BeamInstr *I, Uint offs) NOINLINE;
-static BeamInstr* apply(Process* p, Eterm module, Eterm function,
-			Eterm args, Eterm* reg,
-			BeamInstr *I, Uint offs) NOINLINE;
+static BeamInstr* apply(Process* p, Eterm* reg,
+                        BeamInstr *I, Uint offs) NOINLINE;
 static BeamInstr* call_fun(Process* p, int arity,
 			   Eterm* reg, Eterm args) NOINLINE;
 static BeamInstr* apply_fun(Process* p, Eterm fun,
@@ -439,6 +438,12 @@ init_emulator(void)
 #  define REG_stop asm("%l3")
 #  define REG_I asm("%l4")
 #  define REG_fcalls asm("%l5")
+#elif defined(__GNUC__) && defined(__amd64__) && !defined(DEBUG)
+#  define REG_xregs asm("%r12")
+#  define REG_htop
+#  define REG_stop asm("%r13")
+#  define REG_I asm("%rbx")
+#  define REG_fcalls asm("%r14")
 #else
 #  define REG_xregs
 #  define REG_htop
@@ -624,7 +629,7 @@ void process_main(Eterm * x_reg_array, FloatDef* f_reg_array)
 #ifndef NO_JUMP_TABLE
     static void* opcodes[] = { DEFINE_OPCODES };
 #else
-    int Go;
+    register BeamInstr Go;
 #endif
 #endif
 
@@ -644,7 +649,7 @@ void process_main(Eterm * x_reg_array, FloatDef* f_reg_array)
      * Note: c_p->arity must be set to reflect the number of useful terms in
      * c_p->arg_reg before calling the scheduler.
      */
-    if (!init_done) {
+    if (ERTS_UNLIKELY(!init_done)) {
        /* This should only be reached during the init phase when only the main
         * process is running. I.e. there is no race for init_done.
         */
@@ -700,7 +705,7 @@ void process_main(Eterm * x_reg_array, FloatDef* f_reg_array)
     {
 	int reds;
 	Eterm* argp;
-	BeamInstr *next;
+	BeamInstr next;
 	int i;
 
 	argp = c_p->arg_reg;
@@ -732,7 +737,7 @@ void process_main(Eterm * x_reg_array, FloatDef* f_reg_array)
 
 	ERTS_DBG_CHK_REDS(c_p, FCALLS);
 
-	next = (BeamInstr *) *I;
+	next = *I;
 	SWAPIN;
 	ASSERT(VALID_INSTR(next));
 
@@ -870,6 +875,8 @@ void process_main(Eterm * x_reg_array, FloatDef* f_reg_array)
      goto do_schedule1;
  }
 
+#include "beam_warm.h"
+
  OpCase(normal_exit): {
      SWAPOUT;
      c_p->freason = EXC_NORMAL;
@@ -958,9 +965,6 @@ void process_main(Eterm * x_reg_array, FloatDef* f_reg_array)
 
  init_emulator:
  {
-     int i;
-     Export* ep;
-
 #ifndef NO_JUMP_TABLE
 #ifdef ERTS_OPCODE_COUNTER_SUPPORT
 #ifdef DEBUG
@@ -972,35 +976,8 @@ void process_main(Eterm * x_reg_array, FloatDef* f_reg_array)
      beam_ops = opcodes;
 #endif /* ERTS_OPCODE_COUNTER_SUPPORT */
 #endif /* NO_JUMP_TABLE */
-     
-     em_call_error_handler = OpCode(call_error_handler);
-     em_apply_bif = OpCode(apply_bif);
-     em_call_nif = OpCode(call_nif);
-     em_call_bif_e = OpCode(call_bif_e);
-
-     beam_apply[0]             = (BeamInstr) OpCode(i_apply);
-     beam_apply[1]             = (BeamInstr) OpCode(normal_exit);
-     beam_exit[0]              = (BeamInstr) OpCode(error_action_code);
-     beam_continue_exit[0]     = (BeamInstr) OpCode(continue_exit);
-     beam_return_to_trace[0]   = (BeamInstr) OpCode(i_return_to_trace);
-     beam_return_trace[0]      = (BeamInstr) OpCode(return_trace);
-     beam_exception_trace[0]   = (BeamInstr) OpCode(return_trace); /* UGLY */
-     beam_return_time_trace[0] = (BeamInstr) OpCode(i_return_time_trace);
-
-     /*
-      * Enter all BIFs into the export table.
-      */
-     for (i = 0; i < BIF_SIZE; i++) {
-	 ep = erts_export_put(bif_table[i].module,
-			      bif_table[i].name,
-			      bif_table[i].arity);
-	 bif_export[i] = ep;
-	 ep->beam[0] = (BeamInstr) OpCode(apply_bif);
-	 ep->beam[1] = (BeamInstr) bif_table[i].f;
-	 /* XXX: set func info for bifs */
-	 ep->info.op = (BeamInstr) BeamOp(op_i_func_info_IaaI);
-     }
 
+     init_emulator_finish();
      return;
  }
 #ifdef NO_JUMP_TABLE
@@ -1012,26 +989,71 @@ void process_main(Eterm * x_reg_array, FloatDef* f_reg_array)
 
   save_calls1:
     {
-	Eterm* dis_next;
+	BeamInstr dis_next;
 
 	save_calls(c_p, (Export *) Arg(0));
 
 	SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]);
 
-	dis_next = (Eterm *) *I;
+	dis_next = *I;
 	FCALLS--;
 	Goto(dis_next);
     }
 }
 
 /*
+ * One-time initialization of emulator. Does not need to be
+ * in process_main().
+ */
+static void
+init_emulator_finish(void)
+{
+     int i;
+     Export* ep;
+
+#if defined(ARCH_64) && defined(CODE_MODEL_SMALL)
+     for (i = 0; i < NUMBER_OF_OPCODES; i++) {
+         BeamInstr instr = BeamOpCodeAddr(i);
+         if (instr >= (1ull << 32)) {
+             erts_exit(ERTS_ERROR_EXIT,
+                       "This run-time was supposed be compiled with all code below 2Gb,\n"
+                       "but the instruction '%s' is located at %016lx.\n",
+                       opc[i].name, instr);
+         }
+     }
+#endif
+
+     beam_apply[0]             = BeamOpCodeAddr(op_i_apply);
+     beam_apply[1]             = BeamOpCodeAddr(op_normal_exit);
+     beam_exit[0]              = BeamOpCodeAddr(op_error_action_code);
+     beam_continue_exit[0]     = BeamOpCodeAddr(op_continue_exit);
+     beam_return_to_trace[0]   = BeamOpCodeAddr(op_i_return_to_trace);
+     beam_return_trace[0]      = BeamOpCodeAddr(op_return_trace);
+     beam_exception_trace[0]   = BeamOpCodeAddr(op_return_trace); /* UGLY */
+     beam_return_time_trace[0] = BeamOpCodeAddr(op_i_return_time_trace);
+
+     /*
+      * Enter all BIFs into the export table.
+      */
+     for (i = 0; i < BIF_SIZE; i++) {
+	 ep = erts_export_put(bif_table[i].module,
+			      bif_table[i].name,
+			      bif_table[i].arity);
+	 bif_export[i] = ep;
+	 ep->beam[0] = BeamOpCodeAddr(op_apply_bif);
+	 ep->beam[1] = (BeamInstr) bif_table[i].f;
+	 /* XXX: set func info for bifs */
+	 ep->info.op = BeamOpCodeAddr(op_i_func_info_IaaI);
+     }
+}
+
+/*
  * erts_dirty_process_main() is what dirty schedulers execute. Since they handle
  * only NIF calls they do not need to be able to execute all BEAM
  * instructions.
  */
 void erts_dirty_process_main(ErtsSchedulerData *esdp)
 {
-#ifdef ERTS_DIRTY_SCHEDULERS
     Process* c_p = NULL;
     ErtsMonotonicTime start_time;
 #ifdef DEBUG
@@ -1246,12 +1268,12 @@ void erts_dirty_process_main(ErtsSchedulerData *esdp)
 	ERTS_UNREQ_PROC_MAIN_LOCK(c_p);
 
 	ASSERT(!ERTS_PROC_IS_EXITING(c_p));
-	if (em_apply_bif == (BeamInstr *) *I) {
+	if (BeamIsOpCode(*I, op_apply_bif)) {
 	    exiting = erts_call_dirty_bif(esdp, c_p, I, reg);
 	}
 	else {
-	    ASSERT(em_call_nif == (BeamInstr *) *I);
-	    exiting = erts_call_dirty_nif(esdp, c_p, I, reg);
+	    ASSERT(BeamIsOpCode(*I, op_call_nif));
+            exiting = erts_call_dirty_nif(esdp, c_p, I, reg);
 	}
 
 	ASSERT(!(c_p->flags & F_HIBERNATE_SCHED));
@@ -1270,7 +1292,6 @@ void erts_dirty_process_main(ErtsSchedulerData *esdp)
 	I = c_p->i;
 	goto context_switch;
     }
-#endif /* ERTS_DIRTY_SCHEDULERS */
 }
 
 static ErtsCodeMFA *
@@ -2087,8 +2108,8 @@ apply_bif_error_adjustment(Process *p, Export *ep,
      * and apply_last_IP.
      */
     if (I
-	&& ep->beam[0] == (BeamInstr) em_apply_bif
-	&& (ep == bif_export[BIF_error_1]
+	&& BeamIsOpCode(ep->beam[0], op_apply_bif)
+        && (ep == bif_export[BIF_error_1]
 	    || ep == bif_export[BIF_error_2]
 	    || ep == bif_export[BIF_exit_1]
 	    || ep == bif_export[BIF_throw_1])) {
@@ -2174,13 +2195,14 @@ apply_bif_error_adjustment(Process *p, Export *ep,
 }
 
 static BeamInstr*
-apply(
-Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg,
-BeamInstr *I, Uint stack_offset)
+apply(Process* p, Eterm* reg, BeamInstr *I, Uint stack_offset)
 {
     int arity;
     Export* ep;
     Eterm tmp;
+    Eterm module = reg[0];
+    Eterm function = reg[1];
+    Eterm args = reg[2];
 
     /*
      * Check the arguments which should be of the form apply(Module,
@@ -2297,8 +2319,9 @@ fixed_apply(Process* p, Eterm* reg, Uint arity,
     if (is_not_atom(module)) goto error;
 
     /* Handle apply of apply/3... */
-    if (module == am_erlang && function == am_apply && arity == 3)
-	return apply(p, reg[0], reg[1], reg[2], reg, I, stack_offset);
+    if (module == am_erlang && function == am_apply && arity == 3) {
+	return apply(p, reg, I, stack_offset);
+    }
     
     /*
      * Get the index into the export table, or failing that the export
@@ -2319,10 +2342,13 @@ fixed_apply(Process* p, Eterm* reg, Uint arity,
 }
 
 int
-erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* reg)
+erts_hibernate(Process* c_p, Eterm* reg)
 {
     int arity;
     Eterm tmp;
+    Eterm module = reg[0];
+    Eterm function = reg[1];
+    Eterm args = reg[2];
 
     if (is_not_atom(module) || is_not_atom(function)) {
 	/*
@@ -3173,13 +3199,16 @@ erts_is_builtin(Eterm Mod, Eterm Name, int arity)
     Export e;
     Export* ep;
 
-    if (Mod == am_erlang && Name == am_apply && arity == 3) {
-	/*
-	 * Special case. apply/3 is built-in (implemented in C),
-	 * but implemented in a different way than all other
-	 * BIFs.
-	 */
-	return 1;
+    if (Mod == am_erlang) {
+        /*
+         * Special case for built-in functions that are implemented
+         * as instructions as opposed to SNIFs.
+         */
+        if (Name == am_apply && (arity == 2 || arity == 3)) {
+            return 1;
+        } else if (Name == am_yield && arity == 0) {
+            return 1;
+        }
     }
 
     e.info.mfa.module = Mod;
@@ -3189,8 +3218,8 @@ erts_is_builtin(Eterm Mod, Eterm Name, int arity)
     if ((ep = export_get(&e)) == NULL) {
 	return 0;
     }
-    return ep->addressv[erts_active_code_ix()] == ep->beam
-	&& (ep->beam[0] == (BeamInstr) em_apply_bif);
+    return ep->addressv[erts_active_code_ix()] == ep->beam &&
+	BeamIsOpCode(ep->beam[0], op_apply_bif);
 }
 
 
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index 9ff32e30f3..bbccd0b79d 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -55,12 +55,6 @@ ErlDrvBinary* erts_gzinflate_buffer(char*, int);
 #define DEFINED   1
 #define EXPORTED  2
 
-#ifdef NO_JUMP_TABLE
-#  define BeamOpCode(Op) ((BeamInstr)(Op))
-#else
-#  define BeamOpCode(Op) ((BeamInstr)beam_ops[Op])
-#endif
-
 #if defined(WORDS_BIGENDIAN)
 # define NATIVE_ENDIAN(F)			\
   if ((F).val & BSF_NATIVE) {			\
@@ -81,15 +75,28 @@ ErlDrvBinary* erts_gzinflate_buffer(char*, int);
 #define TE_FAIL (-1)
 #define TE_SHORT_WINDOW (-2)
 
+/*
+ * Type for a reference to a label that must be patched.
+ */
+
 typedef struct {
-    Uint value;			/* Value of label (NULL if not known yet). */
-    Sint patches;		/* Index (into code buffer) to first
-				 * location which must be patched with
-				 * the value of this label.
-				 */
+    Uint pos;                   /* Position of label reference to patch. */
+    Uint offset;                /* Offset from patch location.  */
+    int packed;                 /* 0 (not packed), 1 (lsw), 2 (msw) */
+} LabelPatch;
+
+/*
+ * Type for a label.
+ */
+
+typedef struct {
+    Uint value;			/* Value of label (0 if not known yet). */
     Uint looprec_targeted;	/* Non-zero if this label is the target of a loop_rec
 				 * instruction.
 				 */
+    LabelPatch* patches;       /* Array of label patches. */
+    Uint num_patches;           /* Number of patches in array. */
+    Uint num_allocated;         /* Number of allocated patches. */
 } Label;
 
 /*
@@ -226,7 +233,7 @@ typedef struct {
 
 typedef struct literal_patch LiteralPatch;
 struct literal_patch {
-    int pos;			/* Position in code */
+    Uint pos;			/* Position in code */
     LiteralPatch* next;
 };
 
@@ -507,6 +514,7 @@ static int read_lambda_table(LoaderState* stp);
 static int read_literal_table(LoaderState* stp);
 static int read_line_table(LoaderState* stp);
 static int read_code_header(LoaderState* stp);
+static void init_label(Label* lp);
 static int load_code(LoaderState* stp);
 static GenOp* gen_element(LoaderState* stp, GenOpArg Fail, GenOpArg Index,
 			  GenOpArg Tuple, GenOpArg Dst);
@@ -798,11 +806,6 @@ erts_finish_loading(Binary* magic, Process* c_p,
     struct erl_module_instance* inst_p;
     Uint size;
 
-    /*
-     * No other process may run since we will update the export
-     * table which is not protected by any locks.
-     */
-
     ERTS_LC_ASSERT(erts_initialized == 0 || erts_has_code_write_permission() ||
 		       erts_thr_progress_is_blocking());
     /*
@@ -835,10 +838,9 @@ erts_finish_loading(Binary* magic, Process* c_p,
 		continue;
 	    }
 	    if (ep->addressv[code_ix] == ep->beam) {
-		if (ep->beam[0] == (BeamInstr) em_apply_bif) {
+		if (BeamIsOpCode(ep->beam[0], op_apply_bif)) {
 		    continue;
-		} else if (ep->beam[0] ==
-			   (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
+		} else if (BeamIsOpCode(ep->beam[0], op_i_generic_breakpoint)) {
 		    ERTS_LC_ASSERT(erts_thr_progress_is_blocking());
 		    ASSERT(mod_tab_p->curr.num_traced_exports > 0);
 		    erts_clear_export_break(mod_tab_p, &ep->info);
@@ -1051,6 +1053,10 @@ loader_state_dtor(Binary* magic)
         stp->codev = 0;
     }
     if (stp->labels != 0) {
+        Uint num;
+        for (num = 0; num < stp->num_labels; num++) {
+            erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->labels[num].patches);
+        }
 	erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->labels);
 	stp->labels = 0;
     }
@@ -1464,7 +1470,7 @@ load_import_table(LoaderState* stp)
 	 * the BIF function.
 	 */
 	if ((e = erts_active_export_entry(mod, func, arity)) != NULL) {
-	    if (e->beam[0] == (BeamInstr) em_apply_bif) {
+	    if (BeamIsOpCode(e->beam[0], op_apply_bif)) {
 		stp->import[i].bf = (BifFunction) e->beam[1];
 		if (func == am_load_nif && mod == am_erlang && arity == 2) {
 		    stp->may_load_nif = 1;
@@ -1534,7 +1540,7 @@ read_export_table(LoaderState* stp)
 	 * any other functions that walk through all local functions.
 	 */
 
-	if (stp->labels[n].patches >= 0) {
+	if (stp->labels[n].num_patches > 0) {
 	    LoadError3(stp, "there are local calls to the stub for "
 		       "the BIF %T:%T/%d",
 		       stp->module, func, arity);
@@ -1558,7 +1564,7 @@ is_bif(Eterm mod, Eterm func, unsigned arity)
     if (e == NULL) {
 	return 0;
     }
-    if (e->beam[0] != (BeamInstr) em_apply_bif) {
+    if (! BeamIsOpCode(e->beam[0], op_apply_bif)) {
 	return 0;
     }
     if (mod == am_erlang && func == am_apply && arity == 3) {
@@ -1880,9 +1886,7 @@ read_code_header(LoaderState* stp)
     stp->labels = (Label *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
 				       stp->num_labels * sizeof(Label));
     for (i = 0; i < stp->num_labels; i++) {
-	stp->labels[i].value = 0;
-	stp->labels[i].patches = -1;
-	stp->labels[i].looprec_targeted = 0;
+        init_label(&stp->labels[i]);
     }
 
     stp->catches = 0;
@@ -1911,12 +1915,43 @@ read_code_header(LoaderState* stp)
     
 #define TermWords(t) (((t) / (sizeof(BeamInstr)/sizeof(Eterm))) + !!((t) % (sizeof(BeamInstr)/sizeof(Eterm))))
 
+static void init_label(Label* lp)
+{
+    lp->value = 0;
+    lp->looprec_targeted = 0;
+    lp->num_patches = 0;
+    lp->num_allocated = 4;
+    lp->patches = erts_alloc(ERTS_ALC_T_PREPARED_CODE,
+                             lp->num_allocated * sizeof(LabelPatch));
+}
+
+static void
+register_label_patch(LoaderState* stp, Uint label, Uint ci, Uint offset)
+{
+    Label* lp;
+
+    ASSERT(label < stp->num_labels);
+    lp = &stp->labels[label];
+    if (lp->num_allocated <= lp->num_patches) {
+        lp->num_allocated *= 2;
+        lp->patches = erts_realloc(ERTS_ALC_T_PREPARED_CODE,
+                                   (void *) lp->patches,
+                                   lp->num_allocated * sizeof(LabelPatch));
+    }
+    lp->patches[lp->num_patches].pos = ci;
+    lp->patches[lp->num_patches].offset = offset;
+    lp->patches[lp->num_patches].packed = 0;
+    lp->num_patches++;
+    stp->codev[ci] = label;
+}
+
 static int
 load_code(LoaderState* stp)
 {
     int i;
-    int ci;
-    int last_func_start = 0;	/* Needed by nif loading and line instructions */
+    Uint ci;
+    Uint last_instr_start;       /* Needed for relative jumps */
+    Uint last_func_start = 0;	/* Needed by nif loading and line instructions */
     char* sign;
     int arg;			/* Number of current argument. */
     int num_specific;		/* Number of specific ops for current. */
@@ -1929,6 +1964,9 @@ load_code(LoaderState* stp)
     GenOp** last_op_next = NULL;
     int arity;
     int retval = 1;
+#if defined(BEAM_WIDE_SHIFT)
+    int num_trailing_f;     /* Number of extra 'f' arguments in a list */
+#endif
 
     /*
      * The size of the loaded func_info instruction is needed
@@ -2034,30 +2072,10 @@ load_code(LoaderState* stp)
 		    case 0:
 			/* Floating point number.
 			 * Not generated by the compiler in R16B and later.
+                         * (The literal pool is used instead.)
 			 */
-			{
-			    Eterm* hp;
-#if !defined(ARCH_64)
-			    Uint high, low;
-# endif
-			    last_op->a[arg].val = new_literal(stp, &hp,
-							      FLOAT_SIZE_OBJECT);
-			    hp[0] = HEADER_FLONUM;
-			    last_op->a[arg].type = TAG_q;
-#if defined(ARCH_64)
-			    GetInt(stp, 8, hp[1]);
-# else
-			    GetInt(stp, 4, high);
-			    GetInt(stp, 4, low);
-			    if (must_swap_floats) {
-				Uint t = high;
-				high = low;
-				low = t;
-			    }
-			    hp[1] = high;
-			    hp[2] = low;
-# endif
-			}
+                        LoadError0(stp, "please re-compile this module with an "
+                                   ERLANG_OTP_RELEASE " compiler");
 			break;
 		    case 1:	/* List. */
 			if (arg+1 != arity) {
@@ -2292,7 +2310,8 @@ load_code(LoaderState* stp)
 
 	    stp->specific_op = specific;
 	    CodeNeed(opc[stp->specific_op].sz+16); /* Extra margin for packing */
-	    code[ci++] = BeamOpCode(stp->specific_op);
+            last_instr_start = ci + opc[stp->specific_op].adjust;
+	    code[ci++] = BeamOpCodeAddr(stp->specific_op);
 	}
 	
 	/*
@@ -2421,16 +2440,14 @@ load_code(LoaderState* stp)
 		break;
 	    case 'f':		/* Destination label */
 		VerifyTag(stp, tag_to_letter[tag], *sign);
-		code[ci] = stp->labels[tmp_op->a[arg].val].patches;
-		stp->labels[tmp_op->a[arg].val].patches = ci;
+                register_label_patch(stp, tmp_op->a[arg].val, ci, -last_instr_start);
 		ci++;
 		break;
 	    case 'j':		/* 'f' or 'p' */
 		if (tag == TAG_p) {
 		    code[ci] = 0;
 		} else if (tag == TAG_f) {
-		    code[ci] = stp->labels[tmp_op->a[arg].val].patches;
-		    stp->labels[tmp_op->a[arg].val].patches = ci;
+                    register_label_patch(stp, tmp_op->a[arg].val, ci, -last_instr_start);
 		} else {
 		    LoadError3(stp, "bad tag %d; expected %d or %d",
 			       tag, TAG_f, TAG_p);
@@ -2450,7 +2467,6 @@ load_code(LoaderState* stp)
 		    LoadError1(stp, "label %d defined more than once", last_label);
 		}
 		stp->labels[last_label].value = ci;
-		ASSERT(stp->labels[last_label].patches < ci);
 		break;
 	    case 'e':		/* Export entry */
 		VerifyTag(stp, tag, TAG_u);
@@ -2499,59 +2515,165 @@ load_code(LoaderState* stp)
 	    char* prog;            /* Program for packing engine. */
 	    struct pack_stack {
                 BeamInstr instr;
-                LiteralPatch* patch;
+                Uint* patch_pos;
             } stack[8];            /* Stack. */
 	    struct pack_stack* sp = stack; /* Points to next free position. */
 	    BeamInstr packed = 0; /* Accumulator for packed operations. */
+            LabelPatch* packed_label = 0;
 
 	    for (prog = opc[stp->specific_op].pack; *prog; prog++) {
 		switch (*prog) {
-		case 'g':	/* Get instruction; push on stack. */
+		case 'g':	/* Get operand and push on stack. */
+                    ci--;
+                    sp->instr = code[ci];
+                    sp->patch_pos = 0;
+                    sp++;
+                    break;
+		case 'f':	/* Get possible 'f' operand and push on stack. */
+                    {
+                        Uint w = code[--ci];
+                        sp->instr = w;
+                        sp->patch_pos = 0;
+
+                        if (w != 0) {
+                            LabelPatch* lbl_p;
+                            int num_patches;
+                            int patch;
+
+                            ASSERT(w < stp->num_labels);
+                            lbl_p = stp->labels[w].patches;
+                            num_patches = stp->labels[w].num_patches;
+                            for (patch = num_patches - 1; patch >= 0; patch--) {
+                                if (lbl_p[patch].pos == ci) {
+                                    sp->patch_pos = &lbl_p[patch].pos;
+                                    break;
+                                }
+                            }
+                            ASSERT(sp->patch_pos);
+                        }
+                        sp++;
+                    }
+                    break;
+		case 'q':	/* Get possible 'q' operand and push on stack. */
                     {
                         LiteralPatch* lp;
 
                         ci--;
                         sp->instr = code[ci];
-                        sp->patch = 0;
-                        for (lp = stp->literal_patches; lp && lp->pos > ci-MAX_OPARGS; lp = lp->next) {
+                        sp->patch_pos = 0;
+
+                        for (lp = stp->literal_patches;
+                             lp && lp->pos > ci-MAX_OPARGS;
+                             lp = lp->next) {
                             if (lp->pos == ci) {
-                                sp->patch = lp;
+                                sp->patch_pos = &lp->pos;
                                 break;
                             }
                         }
                         sp++;
                     }
                     break;
-		case 'i':	/* Initialize packing accumulator. */
-		    packed = code[--ci];
+#ifdef ARCH_64
+		case '1':	/* Tightest shift (always 10 bits) */
+                    ci--;
+                    ASSERT((code[ci] & ~0x1FF8ull) == 0); /* Fits in 10 bits */
+                    packed = (packed << BEAM_TIGHTEST_SHIFT);
+                    packed |= code[ci] >> 3;
+                    if (packed_label) {
+                        packed_label->packed++;
+                    }
 		    break;
-		case '0':	/* Tight shift */
+#endif
+		case '2':	/* Tight shift (10 or 16 bits) */
 		    packed = (packed << BEAM_TIGHT_SHIFT) | code[--ci];
+                    if (packed_label) {
+                        packed_label->packed++;
+                    }
 		    break;
-		case '6':	/* Shift 16 steps */
+		case '3':	/* Loose shift (16 bits) */
 		    packed = (packed << BEAM_LOOSE_SHIFT) | code[--ci];
+                    if (packed_label) {
+                        packed_label->packed++;
+                    }
 		    break;
 #ifdef ARCH_64
-		case 'w':	/* Shift 32 steps */
-		    packed = (packed << BEAM_WIDE_SHIFT) | code[--ci];
-		    break;
+		case '4':	/* Wide shift (32 bits) */
+                    {
+                        Uint w = code[--ci];
+
+                        if (packed_label) {
+                            packed_label->packed++;
+                        }
+
+                        /*
+                         * 'w' can handle both labels ('f' and 'j'), as well
+                         * as 'I'. Test whether this is a label.
+                         */
+
+                        if (w < stp->num_labels) {
+                            /*
+                             * Probably a label. Look for patch pointing to this
+                             * position.
+                             */
+                            LabelPatch* lp = stp->labels[w].patches;
+                            int num_patches = stp->labels[w].num_patches;
+                            int patch;
+                            for (patch = num_patches - 1; patch >= 0; patch--) {
+                                if (lp[patch].pos == ci) {
+                                    lp[patch].packed = 1;
+                                    packed_label = &lp[patch];
+                                    break;
+                                }
+                            }
+                        }
+                        packed = (packed << BEAM_WIDE_SHIFT) |
+                            (code[ci] & BEAM_WIDE_MASK);
+                    }
+                    break;
 #endif
 		case 'p':	/* Put instruction (from stack). */
                     --sp;
                     code[ci] = sp->instr;
-                    if (sp->patch) {
-                        sp->patch->pos = ci;
+                    if (sp->patch_pos) {
+                        *sp->patch_pos = ci;
                     }
                     ci++;
 		    break;
-		case 'P':	/* Put packed operands. */
+		case 'P':	/* Put packed operands (on the stack). */
                     sp->instr = packed;
-                    sp->patch = 0;
+                    sp->patch_pos = 0;
+                    if (packed_label) {
+                        sp->patch_pos = &packed_label->pos;
+                        packed_label = 0;
+                    }
                     sp++;
 		    packed = 0;
 		    break;
+#if defined(ARCH_64) && defined(CODE_MODEL_SMALL)
+                case '#':       /* -1 */
+                case '$':       /* -2 */
+                case '%':       /* -3 */
+                case '&':       /* -4 */
+                case '\'':      /* -5 */
+                case '(':       /* -6 */
+                    /* Pack accumulator contents into instruction word. */
+                    {
+                        Sint pos = ci - (*prog - '#' + 1);
+                        /* Are the high 32 bits of the instruction word zero? */
+                        ASSERT((code[pos] & ~((1ull << BEAM_WIDE_SHIFT)-1)) == 0);
+                        code[pos] |= packed << BEAM_WIDE_SHIFT;
+                        if (packed_label) {
+                            ASSERT(packed_label->packed == 1);
+                            packed_label->pos = pos;
+                            packed_label->packed = 2;
+                            packed_label = 0;
+                        }
+                        packed >>= BEAM_WIDE_SHIFT;
+                    }
+		    break;
+#endif
 		default:
-		    ASSERT(0);
+                    erts_exit(ERTS_ERROR_EXIT, "beam_load: invalid packing op: %c\n", *prog);
 		}
 	    }
 	    ASSERT(sp == stack); /* Incorrect program? */
@@ -2561,7 +2683,17 @@ load_code(LoaderState* stp)
 	 * Load any list arguments using the primitive tags.
 	 */
 
+#if defined(BEAM_WIDE_SHIFT)
+        num_trailing_f = 0;
+#endif
 	for ( ; arg < tmp_op->arity; arg++) {
+#if defined(BEAM_WIDE_SHIFT)
+	    if (tmp_op->a[arg].type == TAG_f) {
+                num_trailing_f++;
+            } else {
+                num_trailing_f = 0;
+            }
+#endif
 	    switch (tmp_op->a[arg].type) {
 	    case TAG_i:
 		CodeNeed(1);
@@ -2575,8 +2707,7 @@ load_code(LoaderState* stp)
 		break;
 	    case TAG_f:
 		CodeNeed(1);
-		code[ci] = stp->labels[tmp_op->a[arg].val].patches;
-		stp->labels[tmp_op->a[arg].val].patches = ci;
+                register_label_patch(stp, tmp_op->a[arg].val, ci, -last_instr_start);
 		ci++;
 		break;
 	    case TAG_x:
@@ -2602,6 +2733,61 @@ load_code(LoaderState* stp)
 	    }
 	}
 
+        /*
+         * If all the extra arguments were 'f' operands,
+         * and the wordsize is 64 bits, pack two 'f' operands
+         * into each word.
+         */
+
+#if defined(BEAM_WIDE_SHIFT)
+        if (num_trailing_f >= 1) {
+            Uint src_index = ci - num_trailing_f;
+            Uint src_limit = ci;
+            Uint dst_limit = src_index + (num_trailing_f+1)/2;
+
+            ci = src_index;
+            while (ci < dst_limit) {
+                Uint w[2];
+                BeamInstr packed = 0;
+                int wi;
+
+                w[0] = code[src_index];
+                if (src_index+1 < src_limit) {
+                    w[1] = code[src_index+1];
+                } else {
+                    w[1] = 0;
+                }
+                for (wi = 0; wi < 2; wi++) {
+                    Uint lbl = w[wi];
+                    LabelPatch* lp = stp->labels[lbl].patches;
+                    int num_patches = stp->labels[lbl].num_patches;
+
+#if defined(WORDS_BIGENDIAN)
+                    packed <<= BEAM_WIDE_SHIFT;
+                    packed |= lbl & BEAM_WIDE_MASK;
+#else
+                    packed >>= BEAM_WIDE_SHIFT;
+                    packed |= lbl << BEAM_WIDE_SHIFT;
+#endif
+                    while (num_patches-- > 0) {
+                        if (lp->pos == src_index + wi) {
+                            lp->pos = ci;
+#if defined(WORDS_BIGENDIAN)
+                            lp->packed = 2 - wi;
+#else
+                            lp->packed = wi + 1;
+#endif
+                            break;
+                        }
+                        lp++;
+                    }
+                }
+                code[ci++] = packed;
+                src_index += 2;
+            }
+        }
+#endif
+
 	/*
 	 * Handle a few special cases.
 	 */
@@ -2648,17 +2834,16 @@ load_code(LoaderState* stp)
                    the size of the ops.tab i_func_info instruction is not
                    the same as FUNC_INFO_SZ */
 		ASSERT(stp->labels[last_label].value == ci - FUNC_INFO_SZ);
-		stp->hdr->functions[function_number] = (ErtsCodeInfo*) stp->labels[last_label].patches;
 		offset = function_number;
-		stp->labels[last_label].patches = offset;
+                register_label_patch(stp, last_label, offset, 0);
 		function_number++;
 		if (stp->arity > MAX_ARG) {
 		    LoadError1(stp, "too many arguments: %d", stp->arity);
 		}
 #ifdef DEBUG
-		ASSERT(stp->labels[0].patches < 0); /* Should not be referenced. */
+		ASSERT(stp->labels[0].num_patches == 0); /* Should not be referenced. */
 		for (i = 1; i < stp->num_labels; i++) {
-		    ASSERT(stp->labels[i].patches < ci);
+                    ASSERT(stp->labels[i].num_patches <= stp->labels[i].num_allocated);
 		}
 #endif
 	    }
@@ -3583,7 +3768,7 @@ gen_select_tuple_arity(LoaderState* stp, GenOpArg S, GenOpArg Fail,
     if (size == 2) {
 	NEW_GENOP(stp, op);
 	op->next = NULL;
-	op->op = genop_i_select_tuple_arity2_6;
+	op->op = genop_i_select_tuple_arity2_4;
 	GENOP_ARITY(op, arity - 1);
 	op->a[0] = S;
 	op->a[1] = Fail;
@@ -3873,14 +4058,13 @@ gen_select_val(LoaderState* stp, GenOpArg S, GenOpArg Fail,
     int i, j, align = 0;
 
     if (size == 2) {
-
 	/*
 	 * Use a special-cased instruction if there are only two values.
 	 */
 
 	NEW_GENOP(stp, op);
 	op->next = NULL;
-	op->op = genop_i_select_val2_6;
+	op->op = genop_i_select_val2_4;
 	GENOP_ARITY(op, arity - 1);
 	op->a[0] = S;
 	op->a[1] = Fail;
@@ -3890,47 +4074,19 @@ gen_select_val(LoaderState* stp, GenOpArg S, GenOpArg Fail,
 	op->a[5] = Rest[3];
 
 	return op;
-
-    } else if (size > 10) {
-
-	/* binary search instruction */
-
-	NEW_GENOP(stp, op);
-	op->next = NULL;
-	op->op = genop_i_select_val_bins_3;
-	GENOP_ARITY(op, arity);
-	op->a[0] = S;
-	op->a[1] = Fail;
-	op->a[2].type = TAG_u;
-	op->a[2].val = size;
-	for (i = 3; i < arity; i++) {
-	    op->a[i] = Rest[i-3];
-	}
-
-	/*
-	 * Sort the values to make them useful for a binary search.
-	 */
-
-	qsort(op->a+3, size, 2*sizeof(GenOpArg),
-		(int (*)(const void *, const void *)) genopargcompare);
-#ifdef DEBUG
-	for (i = 3; i < arity-2; i += 2) {
-	    ASSERT(op->a[i].val < op->a[i+2].val);
-	}
-#endif
-	return op;
     }
 
-    /* linear search instruction */
-
-    align = 1;
+    if (size <= 10) {
+        /* Use linear search. Reserve place for a sentinel. */
+        align = 1;
+    }
 
     arity += 2*align;
     size  += align;
 
     NEW_GENOP(stp, op);
     op->next = NULL;
-    op->op = genop_i_select_val_lins_3;
+    op->op = (align == 0) ? genop_i_select_val_bins_3 : genop_i_select_val_lins_3;
     GENOP_ARITY(op, arity);
     op->a[0] = S;
     op->a[1] = Fail;
@@ -3944,7 +4100,7 @@ gen_select_val(LoaderState* stp, GenOpArg S, GenOpArg Fail,
     }
 
     /*
-     * Sort the values to make them useful for a sentinel search
+     * Sort the values to make them useful for a binary or sentinel search.
      */
 
     qsort(tmp, size - align, 2*sizeof(GenOpArg),
@@ -3959,11 +4115,12 @@ gen_select_val(LoaderState* stp, GenOpArg S, GenOpArg Fail,
 
     erts_free(ERTS_ALC_T_LOADER_TMP, (void *) tmp);
 
-    /* add sentinel */
-
-    op->a[j].type = TAG_u;
-    op->a[j].val  = ~((BeamInstr)0);
-    op->a[j+size] = Fail;
+    if (align) {
+        /* Add sentinel for linear search. */
+        op->a[j].type = TAG_u;
+        op->a[j].val  = ~((BeamInstr)0);
+        op->a[j+size] = Fail;
+    }
 
 #ifdef DEBUG
     for (i = 0; i < size - 1; i++) {
@@ -4847,21 +5004,57 @@ freeze_code(LoaderState* stp)
      */
 
     for (i = 0; i < stp->num_labels; i++) {
-	Sint this_patch;
-	Sint next_patch;
+	Uint patch;
 	Uint value = stp->labels[i].value;
-	
-	if (value == 0 && stp->labels[i].patches >= 0) {
+
+	if (value == 0 && stp->labels[i].num_patches != 0) {
 	    LoadError1(stp, "label %d not resolved", i);
 	}
 	ASSERT(value < stp->ci);
-	this_patch = stp->labels[i].patches;
-	while (this_patch >= 0) {
-	    ASSERT(this_patch < stp->ci);
-	    next_patch = codev[this_patch];
-	    ASSERT(next_patch < stp->ci);
-	    codev[this_patch] = (BeamInstr) (codev + value);
-	    this_patch = next_patch;
+        for (patch = 0; patch < stp->labels[i].num_patches; patch++) {
+            LabelPatch* lp = &stp->labels[i].patches[patch];
+            Uint pos = lp->pos;
+	    ASSERT(pos < stp->ci);
+            if (pos < stp->num_functions) {
+                /*
+                 * This is the array of pointers to the beginning of
+                 * each function. The pointers must remain absolute.
+                 */
+                codev[pos] = (BeamInstr) (codev + value);
+            } else {
+#ifdef DEBUG
+                Uint w;
+#endif
+                Sint32 rel = lp->offset + value;
+                switch (lp->packed) {
+                case 0:         /* Not packed */
+                    ASSERT(codev[pos] == i);
+                    codev[pos] = rel;
+                    break;
+#ifdef BEAM_WIDE_MASK
+                case 1:         /* Least significant word. */
+#ifdef DEBUG
+                    w = codev[pos] & BEAM_WIDE_MASK;
+                    /* Correct label in least significant word? */
+                    ASSERT(w == i);
+#endif
+                    codev[pos] = (codev[pos] & ~BEAM_WIDE_MASK) |
+                        (rel & BEAM_WIDE_MASK);
+                    break;
+                case 2:         /* Most significant word */
+#ifdef DEBUG
+                    w = (codev[pos] >> BEAM_WIDE_SHIFT) & BEAM_WIDE_MASK;
+                    /* Correct label in most significant word? */
+                    ASSERT(w == i);
+#endif
+                    codev[pos] = ((Uint)rel << BEAM_WIDE_SHIFT) |
+                        (codev[pos] & BEAM_WIDE_MASK);
+                    break;
+#endif
+                default:
+                    ASSERT(0);
+                }
+            }
 	}
     }
     CHKBLK(ERTS_ALC_T_CODE,code_hdr);
@@ -4904,8 +5097,11 @@ final_touch(LoaderState* stp, struct erl_module_instance* inst_p)
     catches = BEAM_CATCHES_NIL;
     while (index != 0) {
 	BeamInstr next = codev[index];
-	codev[index] = BeamOpCode(op_catch_yf);
-	catches = beam_catches_cons((BeamInstr *)codev[index+2], catches);
+        BeamInstr* abs_addr;
+	codev[index] = BeamOpCodeAddr(op_catch_yf);
+        /* We must make the address of the label absolute again. */
+        abs_addr = (BeamInstr *)codev + index + codev[index+2];
+	catches = beam_catches_cons(abs_addr, catches);
 	codev[index+2] = make_catch(catches);
 	index = next;
     }
@@ -5372,12 +5568,15 @@ get_tag_and_value(LoaderState* stp, Uint len_code,
 {
     Uint count;
     Sint val;
-    byte default_buf[128];
-    byte* bigbuf = default_buf;
+    byte default_byte_buf[128];
+    byte* byte_buf = default_byte_buf;
+    Eterm default_big_buf[128/sizeof(Eterm)];
+    Eterm* big_buf = default_big_buf;
+    Eterm tmp_big;
     byte* s;
     int i;
     int neg = 0;
-    Uint arity;
+    Uint words_needed;
     Eterm* hp;
 
     /*
@@ -5454,8 +5653,11 @@ get_tag_and_value(LoaderState* stp, Uint len_code,
 	    *result = val;
 	    return TAG_i;
 	} else {
-	    *result = new_literal(stp, &hp, BIG_UINT_HEAP_SIZE);
-	    (void) small_to_big(val, hp);
+            tmp_big = small_to_big(val, big_buf);
+            if (!find_literal(stp, tmp_big, result)) {
+                *result = new_literal(stp, &hp, BIG_UINT_HEAP_SIZE);
+                sys_memcpy(hp, big_buf, BIG_UINT_HEAP_SIZE*sizeof(Eterm));
+            }
 	    return TAG_q;
 	}
     }
@@ -5465,8 +5667,8 @@ get_tag_and_value(LoaderState* stp, Uint len_code,
      * (including margin).
      */
 
-    if (count+8 > sizeof(default_buf)) {
-	bigbuf = erts_alloc(ERTS_ALC_T_LOADER_TMP, count+8);
+    if (count+8 > sizeof(default_byte_buf)) {
+	byte_buf = erts_alloc(ERTS_ALC_T_LOADER_TMP, count+8);
     }
 
     /*
@@ -5475,20 +5677,20 @@ get_tag_and_value(LoaderState* stp, Uint len_code,
 
     GetString(stp, s, count);
     for (i = 0; i < count; i++) {
-	bigbuf[count-i-1] = *s++;
+	byte_buf[count-i-1] = *s++;
     }
 
     /*
      * Check if the number is negative, and negate it if so.
      */
 
-    if ((bigbuf[count-1] & 0x80) != 0) {
+    if ((byte_buf[count-1] & 0x80) != 0) {
 	unsigned carry = 1;
 
 	neg = 1;
 	for (i = 0; i < count; i++) {
-	    bigbuf[i] = ~bigbuf[i] + carry;
-	    carry = (bigbuf[i] == 0 && carry == 1);
+	    byte_buf[i] = ~byte_buf[i] + carry;
+	    carry = (byte_buf[i] == 0 && carry == 1);
 	}
 	ASSERT(carry == 0);
     }
@@ -5497,33 +5699,52 @@ get_tag_and_value(LoaderState* stp, Uint len_code,
      * Align to word boundary.
      */
 
-    if (bigbuf[count-1] == 0) {
+    if (byte_buf[count-1] == 0) {
 	count--;
     }
-    if (bigbuf[count-1] == 0) {
+    if (byte_buf[count-1] == 0) {
 	LoadError0(stp, "bignum not normalized");
     }
     while (count % sizeof(Eterm) != 0) {
-	bigbuf[count++] = 0;
+	byte_buf[count++] = 0;
     }
 
     /*
-     * Allocate heap space for the bignum and copy it.
+     * Convert to a bignum.
      */
 
-    arity = count/sizeof(Eterm);
-    *result = new_literal(stp, &hp, arity+1);
-    if (is_nil(bytes_to_big(bigbuf, count, neg, hp)))
-	goto load_error;
+    words_needed = count/sizeof(Eterm) + 1;
+    if (words_needed*sizeof(Eterm) > sizeof(default_big_buf)) {
+        big_buf = erts_alloc(ERTS_ALC_T_LOADER_TMP, words_needed*sizeof(Eterm));
+    }
+    tmp_big = bytes_to_big(byte_buf, count, neg, big_buf);
+    if (is_nil(tmp_big)) {
+        goto load_error;
+    }
+
+    /*
+     * Create a literal if there is no previous literal with the same value.
+     */
 
-    if (bigbuf != default_buf) {
-	erts_free(ERTS_ALC_T_LOADER_TMP, (void *) bigbuf);
+    if (!find_literal(stp, tmp_big, result)) {
+        *result = new_literal(stp, &hp, words_needed);
+        sys_memcpy(hp, big_buf, words_needed*sizeof(Eterm));
+    }
+
+    if (byte_buf != default_byte_buf) {
+	erts_free(ERTS_ALC_T_LOADER_TMP, (void *) byte_buf);
+    }
+    if (big_buf != default_big_buf) {
+	erts_free(ERTS_ALC_T_LOADER_TMP, (void *) big_buf);
     }
     return TAG_q;
 
  load_error:
-    if (bigbuf != default_buf) {
-	erts_free(ERTS_ALC_T_LOADER_TMP, (void *) bigbuf);
+    if (byte_buf != default_byte_buf) {
+	erts_free(ERTS_ALC_T_LOADER_TMP, (void *) byte_buf);
+    }
+    if (big_buf != default_big_buf) {
+	erts_free(ERTS_ALC_T_LOADER_TMP, (void *) big_buf);
     }
     return -1;
 }
@@ -5568,8 +5789,7 @@ new_label(LoaderState* stp)
     stp->labels = (Label *) erts_realloc(ERTS_ALC_T_PREPARED_CODE,
 					 (void *) stp->labels,
 					 stp->num_labels * sizeof(Label));
-    stp->labels[num].value = 0;
-    stp->labels[num].patches = -1;
+    init_label(&stp->labels[num]);
     return num;
 }
 
@@ -5832,9 +6052,9 @@ int
 erts_is_function_native(ErtsCodeInfo *ci)
 {
 #ifdef HIPE
-    ASSERT(ci->op == (BeamInstr) BeamOp(op_i_func_info_IaaI));
-    return erts_codeinfo_to_code(ci)[0] == (BeamInstr) BeamOp(op_hipe_trap_call)
-	|| erts_codeinfo_to_code(ci)[0] == (BeamInstr) BeamOp(op_hipe_trap_call_closure);
+    ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI));
+    return BeamIsOpCode(erts_codeinfo_to_code(ci)[0], op_hipe_trap_call) ||
+	BeamIsOpCode(erts_codeinfo_to_code(ci)[0], op_hipe_trap_call_closure);
 #else
     return 0;
 #endif
@@ -5903,7 +6123,7 @@ exported_from_module(Process* p, /* Process whose heap to use. */
 	    Eterm tuple;
 	    
 	    if (ep->addressv[code_ix] == ep->beam &&
-		ep->beam[0] == (BeamInstr) em_call_error_handler) {
+		BeamIsOpCode(ep->beam[0], op_call_error_handler)) {
 		/* There is a call to the function, but it does not exist. */ 
 		continue;
 	    }
@@ -6174,7 +6394,7 @@ make_stub(ErtsCodeInfo* info, Eterm mod, Eterm func, Uint arity, Uint native, Be
 {
     DBG_TRACE_MFA(mod,func,arity,"make beam stub at %p", erts_codeinfo_to_code(info));
     ASSERT(WORDS_PER_FUNCTION == 6);
-    info->op = (BeamInstr) BeamOp(op_i_func_info_IaaI);
+    info->op = BeamOpCodeAddr(op_i_func_info_IaaI);
     info->u.ncallee = (void (*)(void)) native;
     info->mfa.module = mod;
     info->mfa.function = func;
@@ -6279,7 +6499,7 @@ stub_final_touch(LoaderState* stp, ErtsCodeInfo* ci)
     for (i = 0, lp = stp->lambdas; i < n; i++, lp++) {
         ErlFunEntry* fe = stp->lambdas[i].fe;
 	if (lp->function == ci->mfa.function && lp->arity == ci->mfa.arity) {
-	    *erts_codeinfo_to_code(ci) = (Eterm) BeamOpCode(op_hipe_trap_call_closure);
+	    *erts_codeinfo_to_code(ci) = BeamOpCodeAddr(op_hipe_trap_call_closure);
             fe->address = erts_codeinfo_to_code(ci);
 	}
     }
@@ -6603,7 +6823,7 @@ erts_make_stub_module(Process* p, Eterm hipe_magic_bin, Eterm Beam, Eterm Info)
 	 * as the body until we know what kind of trap we should put there.
 	 */
 	code_hdr->functions[i] = (ErtsCodeInfo*)fp;
-	op = (Eterm) BeamOpCode(op_hipe_trap_call); /* Might be changed later. */
+	op = BeamOpCodeAddr(op_hipe_trap_call); /* Might be changed later. */
 	fp = make_stub((ErtsCodeInfo*)fp, hipe_stp->module, func, arity,
                        (Uint)native_address, op);
     }
@@ -6613,7 +6833,7 @@ erts_make_stub_module(Process* p, Eterm hipe_magic_bin, Eterm Beam, Eterm Info)
      */
 
     code_hdr->functions[i] = (ErtsCodeInfo*)fp;
-    *fp++ = (BeamInstr) BeamOp(op_int_code_end);
+    *fp++ = BeamOpCodeAddr(op_int_code_end);
 
     /*
      * Copy attributes and compilation information.
diff --git a/erts/emulator/beam/beam_load.h b/erts/emulator/beam/beam_load.h
index c088bdb751..156c3c45e2 100644
--- a/erts/emulator/beam/beam_load.h
+++ b/erts/emulator/beam/beam_load.h
@@ -37,11 +37,6 @@ typedef struct gen_op_entry {
 
 extern const GenOpEntry gen_opc[];
 
-extern BeamInstr beam_debug_apply[];
-extern BeamInstr* em_call_error_handler;
-extern BeamInstr* em_apply_bif;
-extern BeamInstr* em_call_nif;
-
 struct ErtsLiteralArea_;
 
 /*
@@ -111,11 +106,7 @@ typedef struct beam_code_header {
 
 }BeamCodeHeader;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 #  define BEAM_NIF_MIN_FUNC_SZ 4
-#else
-#  define BEAM_NIF_MIN_FUNC_SZ 3
-#endif
 
 void erts_release_literal_area(struct ErtsLiteralArea_* literal_area);
 int erts_is_module_native(BeamCodeHeader* code);
diff --git a/erts/emulator/beam/beam_ranges.c b/erts/emulator/beam/beam_ranges.c
index 6e373a3480..01bda7f3c1 100644
--- a/erts/emulator/beam/beam_ranges.c
+++ b/erts/emulator/beam/beam_ranges.c
@@ -32,6 +32,15 @@ typedef struct {
     erts_atomic_t end; /* (BeamInstr*) Points one word beyond last function in module. */
 } Range;
 
+/*
+ * Used for crash dumping of literals. The size of erts_dump_lit_areas is
+ * always twice the number of active ranges (to allow for literals in both
+ * current and old code).
+ */
+
+ErtsLiteralArea** erts_dump_lit_areas;
+Uint erts_dump_num_lit_areas;
+
 /* Range 'end' needs to be atomic as we purge module
     by setting end=start in active code_ix */
 #define RANGE_END(R) ((BeamInstr*)erts_atomic_read_nob(&(R)->end))
@@ -97,6 +106,11 @@ erts_init_ranges(void)
 	r[i].allocated = 0;
 	erts_atomic_init_nob(&r[i].mid, 0);
     }
+
+    erts_dump_num_lit_areas = 8;
+    erts_dump_lit_areas = (ErtsLiteralArea **)
+        erts_alloc(ERTS_ALC_T_CRASH_DUMP,
+                   erts_dump_num_lit_areas * sizeof(ErtsLiteralArea*));
 }
 
 void
@@ -164,6 +178,14 @@ erts_end_staging_ranges(int commit)
 	erts_atomic_set_nob(&r[dst].mid,
 				(erts_aint_t) (r[dst].modules +
 					       r[dst].n / 2));
+
+        if (r[dst].allocated * 2 > erts_dump_num_lit_areas) {
+            erts_dump_num_lit_areas *= 2;
+            erts_dump_lit_areas = (ErtsLiteralArea **)
+                erts_realloc(ERTS_ALC_T_CRASH_DUMP,
+                             (void *) erts_dump_lit_areas,
+                             erts_dump_num_lit_areas * sizeof(ErtsLiteralArea*));
+        }
     }
 }
 
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index 7e26af5abd..ad555bb195 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -437,7 +437,6 @@ BIF_RETTYPE demonitor(Process *c_p, Eterm ref, Eterm *multip)
    ErtsMonitor  *mon = NULL;  /* The monitor entry to delete */
    Eterm        to = NIL;     /* Monitor link traget */
    DistEntry    *dep = NULL;  /* Target's distribution entry */
-   int          deref_de = 0;
    BIF_RETTYPE  res = am_false;
    int          unlock_link = 1;
 
@@ -467,8 +466,6 @@ BIF_RETTYPE demonitor(Process *c_p, Eterm ref, Eterm *multip)
            ASSERT(is_node_name_atom(to));
            dep = erts_sysname_to_connected_dist_entry(to);
            ASSERT(dep != erts_this_dist_entry);
-           if (dep)
-               deref_de = 1;
        } else if (is_port(to)) {
            if (port_dist_entry(to) != erts_this_dist_entry) {
                goto badarg;
@@ -486,11 +483,6 @@ BIF_RETTYPE demonitor(Process *c_p, Eterm ref, Eterm *multip)
            unlock_link = 0;
        }
        else { /* Local monitor */
-           if (deref_de) {
-               deref_de = 0;
-               erts_deref_dist_entry(dep);
-           }
-           dep = NULL;
            demonitor_local_process(c_p, ref, to, &res);
        }
        break;
@@ -505,11 +497,6 @@ done:
    if (unlock_link)
        erts_proc_unlock(c_p, ERTS_PROC_LOCK_LINK);
 
-   if (deref_de) {
-       ASSERT(dep);
-       erts_deref_dist_entry(dep);
-   }
-
    ERTS_LC_ASSERT(ERTS_PROC_LOCK_MAIN == erts_proc_lc_my_proc_locks(c_p));
    BIF_RET(res);
 }
@@ -844,7 +831,6 @@ BIF_RETTYPE monitor_2(BIF_ALIST_2)
     Eterm target = BIF_ARG_2;
     BIF_RETTYPE ret;
     DistEntry  *dep = NULL; 
-    int deref_de = 0;
 
     /* Only process monitors are implemented */
     switch (BIF_ARG_1) {
@@ -904,21 +890,14 @@ local_port:
 	}
 	dep = erts_sysname_to_connected_dist_entry(remote_node);
 	if (dep == erts_this_dist_entry) {
-	    deref_de = 1;
             ret = local_name_monitor(BIF_P, BIF_ARG_1, name);
 	} else {
-	    if (dep)
-		deref_de = 1;
 	    ret = remote_monitor(BIF_P, BIF_ARG_1, BIF_ARG_2, dep, name, 1);
 	}
     } else {
 badarg:
 	ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG);
     }
-    if (deref_de) {
-	deref_de = 0;
-	erts_deref_dist_entry(dep);
-    }
 
     return ret;
 }
@@ -1271,7 +1250,11 @@ BIF_RETTYPE hibernate_3(BIF_ALIST_3)
      */
     Eterm reg[3];
 
-    if (erts_hibernate(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, reg)) {
+    reg[0] = BIF_ARG_1;
+    reg[1] = BIF_ARG_2;
+    reg[2] = BIF_ARG_3;
+
+    if (erts_hibernate(BIF_P, reg)) {
         /*
          * If hibernate succeeded, TRAP. The process will be wait in a
          * hibernated state if its state is inactive (!ERTS_PSFLG_ACTIVE);
@@ -2000,6 +1983,7 @@ static Sint remote_send(Process *p, DistEntry *dep,
 
     ASSERT(is_atom(to) || is_external_pid(to));
 
+    ctx->dep = dep;
     code = erts_dsig_prepare(&ctx->dsd, dep, p, ERTS_DSP_NO_LOCK, !ctx->suspend);
     switch (code) {
     case ERTS_DSIG_PREP_NOT_ALIVE:
@@ -2201,7 +2185,6 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx)
 
 	if (dep == erts_this_dist_entry) {
 	    Eterm id;
-	    erts_deref_dist_entry(dep);
 	    if (IS_TRACED_FL(p, F_TRACE_SEND))
 		trace_send(p, to, msg);
 	    if (ERTS_PROC_GET_SAVED_CALLS_BUF(p))
@@ -2224,11 +2207,9 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx)
 	}
 
 	ret = remote_send(p, dep, tp[1], to, msg, ctx);
-	if (ret != SEND_YIELD_CONTINUE) {
-	    if (dep) {
-		erts_deref_dist_entry(dep);
-	    }
-	} else {
+	if (ret == SEND_YIELD_CONTINUE) {
+            if (dep)
+                erts_ref_dist_entry(dep);
 	    ctx->dep_to_deref = dep;
 	}
 	return ret;
@@ -4164,7 +4145,6 @@ BIF_RETTYPE list_to_pid_1(BIF_ALIST_1)
 	goto bad;
 
     if(dep == erts_this_dist_entry) {
-	erts_deref_dist_entry(dep);
 	BIF_RET(make_internal_pid(make_pid_data(c, b)));
     }
     else {
@@ -4184,13 +4164,10 @@ BIF_RETTYPE list_to_pid_1(BIF_ALIST_1)
       etp->data.ui[0] = make_pid_data(c, b);
 
       MSO(BIF_P).first = (struct erl_off_heap_header*) etp;
-      erts_deref_dist_entry(dep);
       BIF_RET(make_external_pid(etp));
     }
 
  bad:
-    if (dep)
-	erts_deref_dist_entry(dep);
     if (buf)
 	erts_free(ERTS_ALC_T_TMP, (void *) buf);
     BIF_ERROR(BIF_P, BADARG);
@@ -4235,7 +4212,6 @@ BIF_RETTYPE list_to_port_1(BIF_ALIST_1)
 	goto bad;
 
     if(dep == erts_this_dist_entry) {
-	erts_deref_dist_entry(dep);
 	BIF_RET(make_internal_port(p));
     }
     else {
@@ -4255,13 +4231,10 @@ BIF_RETTYPE list_to_port_1(BIF_ALIST_1)
       etp->data.ui[0] = p;
 
       MSO(BIF_P).first = (struct erl_off_heap_header*) etp;
-      erts_deref_dist_entry(dep);
       BIF_RET(make_external_port(etp));
     }
 
  bad:
-    if (dep)
-	erts_deref_dist_entry(dep);
     BIF_ERROR(BIF_P, BADARG);
 }
 
@@ -4381,12 +4354,9 @@ BIF_RETTYPE list_to_ref_1(BIF_ALIST_1)
       res = make_external_ref(etp);
     }
 
-    erts_deref_dist_entry(dep);
     BIF_RET(res);
 
  bad:
-    if (dep)
-	erts_deref_dist_entry(dep);
     BIF_ERROR(BIF_P, BADARG);
 }
 
@@ -4731,7 +4701,6 @@ BIF_RETTYPE system_flag_2(BIF_ALIST_2)
 		      ref,
 		      old ? am_true : am_false);
 	}
-#if defined(ERTS_DIRTY_SCHEDULERS)
     } else if (BIF_ARG_1 == am_dirty_cpu_schedulers_online) {
 	Sint old_no;
 	if (!is_small(BIF_ARG_2))
@@ -4757,7 +4726,6 @@ BIF_RETTYPE system_flag_2(BIF_ALIST_2)
 	    BIF_ERROR(BIF_P, EXC_INTERNAL_ERROR);
 	    break;
 	}
-#endif
     } else if (BIF_ARG_1 == am_time_offset
 	       && ERTS_IS_ATOM_STR("finalize", BIF_ARG_2)) {
 	ErtsTimeOffsetState res;
@@ -5063,7 +5031,7 @@ void erts_init_trap_export(Export* ep, Eterm m, Eterm f, Uint a,
     ep->info.mfa.module = m;
     ep->info.mfa.function = f;
     ep->info.mfa.arity = a;
-    ep->beam[0] = (BeamInstr) em_apply_bif;
+    ep->beam[0] = BeamOpCodeAddr(op_apply_bif);
     ep->beam[1] = (BeamInstr) bif;
 }
 
@@ -5128,13 +5096,12 @@ schedule(Process *c_p, Process *dirty_shadow_proc,
 {
     ERTS_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(c_p));
     (void) erts_nif_export_schedule(c_p, dirty_shadow_proc,
-				    mfa, pc, (BeamInstr) em_apply_bif,
+				    mfa, pc, BeamOpCodeAddr(op_apply_bif),
 				    dfunc, ifunc,
 				    module, function,
 				    argc, argv);
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 static BIF_RETTYPE dirty_bif_result(BIF_ALIST_1)
 {
@@ -5177,9 +5144,7 @@ static BIF_RETTYPE dirty_bif_exception(BIF_ALIST_2)
     BIF_ERROR(BIF_P, freason);
 }
 
-#endif /* ERTS_DIRTY_SCHEDULERS */
 
-extern BeamInstr* em_call_bif_e;
 static BIF_RETTYPE call_bif(Process *c_p, Eterm *reg, BeamInstr *I);
 
 BIF_RETTYPE
@@ -5195,7 +5160,6 @@ erts_schedule_bif(Process *proc,
     Process *c_p, *dirty_shadow_proc;
     ErtsCodeMFA *mfa;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (proc->static_flags & ERTS_STC_FLG_SHADOW_PROC) {
 	dirty_shadow_proc = proc;
 	c_p = proc->next;
@@ -5203,7 +5167,6 @@ erts_schedule_bif(Process *proc,
 	erts_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
     }
     else
-#endif
     {
 	dirty_shadow_proc = NULL;
 	c_p = proc;
@@ -5219,7 +5182,6 @@ erts_schedule_bif(Process *proc,
 	 * ibif - indirect bif
 	 */
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 	erts_aint32_t set, mask;
 	mask = (ERTS_PSFLG_DIRTY_CPU_PROC
 		| ERTS_PSFLG_DIRTY_IO_PROC);
@@ -5243,10 +5205,6 @@ erts_schedule_bif(Process *proc,
 	}
 
 	(void) erts_atomic32_read_bset_nob(&c_p->state, mask, set);
-#else
-	dbif = call_bif;
-	ibif = bif;
-#endif
 
 	if (i == NULL) {
 	    ERTS_INTERNAL_ERROR("Missing instruction pointer");
@@ -5259,13 +5217,13 @@ erts_schedule_bif(Process *proc,
 	    mfa = &exp->info.mfa;
 	}
 #endif
-	else if (em_call_bif_e == (BeamInstr *) *i) {
+	else if (BeamIsOpCode(*i, op_call_bif_e)) {
 	    /* Pointer to bif export in i+1 */
 	    exp = (Export *) i[1];
 	    pc = i;
 	    mfa = &exp->info.mfa;
 	}
-	else if (em_apply_bif == (BeamInstr *) *i) {
+	else if (BeamIsOpCode(*i, op_apply_bif)) {
 	    /* Pointer to bif in i+1, and mfa in i-3 */	    
 	    pc = c_p->cp;
 	    mfa = erts_code_to_codemfa(i);
@@ -5322,7 +5280,6 @@ call_bif(Process *c_p, Eterm *reg, BeamInstr *I)
     return ret;
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 int
 erts_call_dirty_bif(ErtsSchedulerData *esdp, Process *c_p, BeamInstr *I, Eterm *reg)
@@ -5416,7 +5373,6 @@ erts_call_dirty_bif(ErtsSchedulerData *esdp, Process *c_p, BeamInstr *I, Eterm *
     return exiting;
 }
 
-#endif /* ERTS_DIRTY_SCHEDULERS */
 
 
 #ifdef HARDDEBUG
diff --git a/erts/emulator/beam/bif.h b/erts/emulator/beam/bif.h
index 9b0870dee2..a2bc883dbe 100644
--- a/erts/emulator/beam/bif.h
+++ b/erts/emulator/beam/bif.h
@@ -498,10 +498,8 @@ erts_bif_prep_await_proc_exit_apply_trap(Process *c_p,
 					 Eterm args[],
 					 int nargs);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 int erts_call_dirty_bif(ErtsSchedulerData *esdp, Process *c_p,
 			BeamInstr *I, Eterm *reg);
-#endif
 
 BIF_RETTYPE
 erts_schedule_bif(Process *proc,
diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab
index 962b00ae7b..f7b4451890 100644
--- a/erts/emulator/beam/bif.tab
+++ b/erts/emulator/beam/bif.tab
@@ -154,6 +154,12 @@ bif erlang:spawn_opt/1
 bif erlang:setnode/2
 bif erlang:setnode/3
 bif erlang:dist_exit/3
+bif erlang:dist_get_stat/1
+bif erlang:dist_ctrl_input_handler/2
+bif erlang:dist_ctrl_put_data/2
+bif erlang:dist_ctrl_get_data/1
+bif erlang:dist_ctrl_get_data_notification/1
+
 
 # Static native functions in erts_internal
 bif erts_internal:port_info/1
@@ -679,3 +685,9 @@ bif math:ceil/1
 bif math:fmod/2
 bif os:set_signal/2
 bif erts_internal:maps_to_list/2
+
+#
+# New in 20.1
+#
+
+bif erlang:iolist_to_iovec/1
diff --git a/erts/emulator/beam/bif_instrs.tab b/erts/emulator/beam/bif_instrs.tab
index 5aa0523e06..0932b8b985 100644
--- a/erts/emulator/beam/bif_instrs.tab
+++ b/erts/emulator/beam/bif_instrs.tab
@@ -45,7 +45,7 @@ CALL_GUARD_BIF(BF, TmpReg, Dst) {
     ERTS_HOLE_CHECK(c_p);
     FCALLS = c_p->fcalls;
     ERTS_DBG_CHK_REDS(c_p, FCALLS);
-    if (is_value(result)) {
+    if (ERTS_LIKELY(is_value(result))) {
         $Dst = result;
         $NEXT0();
     }
@@ -145,13 +145,13 @@ i_gc_bif1(Fail, Bif, Src, Live, Dst) {
     ERTS_HOLE_CHECK(c_p);
     FCALLS = c_p->fcalls;
     ERTS_DBG_CHK_REDS(c_p, FCALLS);
-    if (is_value(result)) {
+    if (ERTS_LIKELY(is_value(result))) {
         $REFRESH_GEN_DEST();
         $Dst = result;
         $NEXT0();
     }
-    if ($Fail != 0) {          /* Handle error in guard. */
-        $NEXT($Fail);
+    if (ERTS_LIKELY($Fail != 0)) { /* Handle error in guard. */
+        $JUMP($Fail);
     }
 
     /* Handle error in body. */
@@ -195,14 +195,14 @@ i_gc_bif2(Fail, Bif, Live, Src1, Src2, Dst) {
     ERTS_HOLE_CHECK(c_p);
     FCALLS = c_p->fcalls;
     ERTS_DBG_CHK_REDS(c_p, FCALLS);
-    if (is_value(result)) {
+    if (ERTS_LIKELY(is_value(result))) {
         $REFRESH_GEN_DEST();
         $Dst = result;
         $NEXT0();
     }
 
-    if ($Fail != 0) {          /* Handle error in guard. */
-        $NEXT($Fail);
+    if (ERTS_LIKELY($Fail != 0)) { /* Handle error in guard. */
+        $JUMP($Fail);
     }
 
     /* Handle error in body. */
@@ -249,15 +249,15 @@ i_gc_bif3(Fail, Bif, Live, Src2, Src3, Dst) {
     ERTS_HOLE_CHECK(c_p);
     FCALLS = c_p->fcalls;
     ERTS_DBG_CHK_REDS(c_p, FCALLS);
-    if (is_value(result)) {
+    if (ERTS_LIKELY(is_value(result))) {
         $REFRESH_GEN_DEST();
         $Dst = result;
         $NEXT0();
     }
 
     /* Handle error in guard. */
-    if ($Fail != 0) {
-        $NEXT($Fail);
+    if (ERTS_LIKELY($Fail != 0)) {
+        $JUMP($Fail);
     }
 
     /* Handle error in body. */
@@ -325,7 +325,7 @@ call_bif(Exp) {
         ERTS_MSACC_UPDATE_CACHE_X();
     }
     ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_EMULATOR);
-    if (is_value(result)) {
+    if (ERTS_LIKELY(is_value(result))) {
         r(0) = result;
         CHECK_TERM(r(0));
         $NEXT0();
@@ -370,7 +370,7 @@ send() {
     PROCESS_MAIN_CHK_LOCKS(c_p);
     HTOP = HEAP_TOP(c_p);
     FCALLS = c_p->fcalls;
-    if (is_value(result)) {
+    if (ERTS_LIKELY(is_value(result))) {
         r(0) = result;
         CHECK_TERM(r(0));
     } else if (c_p->freason == TRAP) {
@@ -473,10 +473,10 @@ nif_bif.apply_bif() {
 
     /* In case we apply process_info/1,2 or load_nif/1 */
     c_p->current = codemfa;
-    c_p->i = I;		/* In case we apply check_process_code/2. */
-    c_p->arity = 0;		/* To allow garbage collection on ourselves
-                                 * (check_process_code/2).
-                                 */
+    $SET_CP_I_ABS(I);     /* In case we apply check_process_code/2. */
+    c_p->arity = 0;       /* To allow garbage collection on ourselves
+                           * (check_process_code/2).
+                           */
     DTRACE_BIF_ENTRY(c_p, codemfa);
 
     SWAPOUT;
@@ -520,7 +520,7 @@ nif_bif.epilogue() {
     SWAPIN;  /* There might have been a garbage collection. */
     FCALLS = c_p->fcalls;
     ERTS_DBG_CHK_REDS(c_p, FCALLS);
-    if (is_value(nif_bif_result)) {
+    if (ERTS_LIKELY(is_value(nif_bif_result))) {
         r(0) = nif_bif_result;
         CHECK_TERM(r(0));
         SET_I(c_p->cp);
diff --git a/erts/emulator/beam/big.h b/erts/emulator/beam/big.h
index 48efce20e7..7556205063 100644
--- a/erts/emulator/beam/big.h
+++ b/erts/emulator/beam/big.h
@@ -70,7 +70,20 @@ typedef Uint  dsize_t;	 /* Vector size type */
 
 /* Check for small */
 #define IS_USMALL(sgn,x)  ((sgn) ? ((x) <= MAX_SMALL+1) : ((x) <= MAX_SMALL))
-#define IS_SSMALL(x)      (((x) >= MIN_SMALL) && ((x) <= MAX_SMALL))
+
+/*
+ * It seems that both clang and gcc will generate sub-optimal code
+ * for the more obvious way to write the range check:
+ *
+ *    #define IS_SSMALL(x)  (((x) >= MIN_SMALL) && ((x) <= MAX_SMALL))
+ *
+ * Note that IS_SSMALL() may be used in the 32-bit emulator with
+ * a Uint64 argument. Therefore, we must test the size of the argument
+ * to ensure that the cast does not discard the high-order 32 bits.
+ */
+#define _IS_SSMALL32(x) (((Uint32) ((((x)) >> (SMALL_BITS-1)) + 1)) < 2)
+#define _IS_SSMALL64(x) (((Uint64) ((((x)) >> (SMALL_BITS-1)) + 1)) < 2)
+#define IS_SSMALL(x) (sizeof(x) == sizeof(Uint32) ? _IS_SSMALL32(x) : _IS_SSMALL64(x))
 
 /* The heap size needed for a bignum */
 #define BIG_NEED_SIZE(x)  ((x) + 1)
diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c
index 35b2365655..d9ee940662 100644
--- a/erts/emulator/beam/break.c
+++ b/erts/emulator/beam/break.c
@@ -58,6 +58,8 @@ static void dump_attributes(fmtfn_t to, void *to_arg, byte* ptr, int size);
 
 extern char* erts_system_version[];
 
+#define WRITE_BUFFER_SIZE (64*1024)
+
 static void
 port_info(fmtfn_t to, void *to_arg)
 {
@@ -673,18 +675,28 @@ bin_check(void)
 static Sint64 crash_dump_limit = ERTS_SINT64_MAX;
 static Sint64 crash_dump_written = 0;
 
-static int crash_dump_limited_writer(void* vfdp, char* buf, size_t len)
+typedef struct LimitedWriterInfo_ {
+    fmtfn_t to;
+    void* to_arg;
+} LimitedWriterInfo;
+
+static int
+crash_dump_limited_writer(void* vfdp, char* buf, size_t len)
 {
     const char stop_msg[] = "\n=abort:CRASH DUMP SIZE LIMIT REACHED\n";
+    LimitedWriterInfo* lwi = (LimitedWriterInfo *) vfdp;
 
     crash_dump_written += len;
     if (crash_dump_written <= crash_dump_limit) {
-        return erts_write_fd(vfdp, buf, len);
+        return lwi->to(lwi->to_arg, buf, len);
     }
 
     len -= (crash_dump_written - crash_dump_limit);
-    erts_write_fd(vfdp, buf, len);
-    erts_write_fd(vfdp, (char*)stop_msg, sizeof(stop_msg)-1);
+    lwi->to(lwi->to_arg, buf, len);
+    lwi->to(lwi->to_arg, (char*)stop_msg, sizeof(stop_msg)-1);
+    if (lwi->to == &erts_write_fp) {
+        fclose((FILE *) lwi->to_arg);
+    }
 
     /* We assume that crash dump was called from erts_exit_vv() */
     erts_exit_epilogue();
@@ -707,6 +719,9 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
     int i;
     fmtfn_t to = &erts_write_fd;
     void*   to_arg;
+    FILE* fp = 0;
+    LimitedWriterInfo lwi;
+    static char* write_buffer;  /* 'static' to avoid a leak warning in valgrind */
 
     if (ERTS_SOMEONE_IS_CRASH_DUMPING)
 	return;
@@ -810,9 +825,30 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
     fd = open(dumpname,O_WRONLY | O_CREAT | O_TRUNC,0640);
     if (fd < 0)
 	return; /* Can't create the crash dump, skip it */
-    to_arg = (void*)&fd;
+
+    /*
+     * Wrap into a FILE* so that we can use buffered output. Set an
+     * explicit buffer to make sure the first write does not fail because
+     * of a failure to allocate a buffer.
+     */
+    write_buffer = (char *) erts_alloc_fnf(ERTS_ALC_T_TMP, WRITE_BUFFER_SIZE);
+    if (write_buffer && (fp = fdopen(fd, "w")) != NULL) {
+        setvbuf(fp, write_buffer, _IOFBF, WRITE_BUFFER_SIZE);
+        lwi.to = &erts_write_fp;
+        lwi.to_arg = (void*)fp;
+    } else {
+        lwi.to = &erts_write_fd;
+        lwi.to_arg = (void*)&fd;
+    }
+    if (to == &crash_dump_limited_writer) {
+        to_arg = (void *) &lwi;
+    } else {
+        to = lwi.to;
+        to_arg = lwi.to_arg;
+    }
+
     time(&now);
-    erts_cbprintf(to, to_arg, "=erl_crash_dump:0.3\n%s", ctime(&now));
+    erts_cbprintf(to, to_arg, "=erl_crash_dump:0.4\n%s", ctime(&now));
 
     if (file != NULL)
        erts_cbprintf(to, to_arg, "The error occurred in file %s, line %d\n", file, line);
@@ -916,6 +952,9 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
     }
 
     erts_cbprintf(to, to_arg, "=end\n");
+    if (fp) {
+        fclose(fp);
+    }
     close(fd);
     erts_fprintf(stderr,"done\n");
 }
diff --git a/erts/emulator/beam/bs_instrs.tab b/erts/emulator/beam/bs_instrs.tab
index a4d4afe7d4..9f03b19731 100644
--- a/erts/emulator/beam/bs_instrs.tab
+++ b/erts/emulator/beam/bs_instrs.tab
@@ -364,11 +364,9 @@ i_bs_init_bits_fail      := bs_init_bits.fail.verify.execute;
 i_bs_init_bits_fail_heap := bs_init_bits.fail_heap.verify.execute;
 
 bs_init_bits.head() {
-    Eterm new_binary;
     Eterm num_bits_term;
     Uint num_bits;
     Uint alloc;
-    Uint num_bytes;
 }
 
 bs_init_bits.plain(NumBits) {
@@ -410,7 +408,9 @@ bs_init_bits.verify(Fail) {
 }
 
 bs_init_bits.execute(Live, Dst) {
-     num_bytes = ((Uint64)num_bits+(Uint64)7) >> 3;
+     Eterm new_binary;
+     Uint num_bytes = ((Uint64)num_bits+(Uint64)7) >> 3;
+
      if (num_bits & 7) {
 	 alloc += ERL_SUB_BIN_SIZE;
      }
@@ -709,9 +709,6 @@ i_bs_validate_unicode_retract(Fail, Src, Ms) {
 i_bs_start_match2 := bs_start_match.fetch.execute;
 
 bs_start_match.head() {
-    Uint slots;
-    Uint live;
-    Eterm header;
     Eterm context;
 }
 
@@ -720,6 +717,9 @@ bs_start_match.fetch(Src) {
 }
 
 bs_start_match.execute(Fail, Live, Slots, Dst) {
+    Uint slots;
+    Uint live;
+    Eterm header;
     if (!is_boxed(context)) {
         $FAIL($Fail);
     }
@@ -942,13 +942,10 @@ bs_context_to_binary := ctx_to_bin.fetch.execute;
 i_bs_get_binary_all_reuse := ctx_to_bin.fetch_bin.execute;
 
 ctx_to_bin.head() {
-     Eterm context;
-     ErlBinMatchBuffer* mb;
-     ErlSubBin* sb;
-     Uint size;
-     Uint offs;
-     Uint orig;
-     Uint hole_size;
+    Eterm context;
+    ErlBinMatchBuffer* mb;
+    Uint size;
+    Uint offs;
 }
 
 ctx_to_bin.fetch(Src) {
@@ -976,8 +973,9 @@ ctx_to_bin.fetch_bin(Src, Fail, Unit) {
 }
 
 ctx_to_bin.execute() {
-    orig = mb->orig;
-    sb = (ErlSubBin *) boxed_val(context);
+    Uint hole_size;
+    Uint orig = mb->orig;
+    ErlSubBin* sb = (ErlSubBin *) boxed_val(context);
     hole_size = 1 + header_arity(sb->thing_word) - ERL_SUB_BIN_SIZE;
     sb->thing_word = HEADER_SUB_BIN;
     sb->size = BYTE_OFFSET(size);
diff --git a/erts/emulator/beam/code_ix.h b/erts/emulator/beam/code_ix.h
index 9e3280cd98..42976d2301 100644
--- a/erts/emulator/beam/code_ix.h
+++ b/erts/emulator/beam/code_ix.h
@@ -176,7 +176,7 @@ int erts_has_code_write_permission(void);
 ERTS_GLB_INLINE
 BeamInstr *erts_codeinfo_to_code(ErtsCodeInfo *ci)
 {
-    ASSERT(ci->op == (BeamInstr) BeamOp(op_i_func_info_IaaI) || !ci->op);
+    ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI) || !ci->op);
     ASSERT_MFA(&ci->mfa);
     return (BeamInstr*)(ci + 1);
 }
@@ -185,7 +185,7 @@ ERTS_GLB_INLINE
 ErtsCodeInfo *erts_code_to_codeinfo(BeamInstr *I)
 {
     ErtsCodeInfo *ci = ((ErtsCodeInfo *)(((char *)(I)) - sizeof(ErtsCodeInfo)));
-    ASSERT(ci->op == (BeamInstr) BeamOp(op_i_func_info_IaaI) || !ci->op);
+    ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI) || !ci->op);
     ASSERT_MFA(&ci->mfa);
     return ci;
 }
diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c
index 491c4d378e..bc168fc58d 100644
--- a/erts/emulator/beam/dist.c
+++ b/erts/emulator/beam/dist.c
@@ -121,7 +121,7 @@ Export* dexit_trap = NULL;
 Export* dmonitor_p_trap = NULL;
 
 /* local variables */
-
+static Export *dist_ctrl_put_data_trap;
 
 /* forward declarations */
 
@@ -156,9 +156,7 @@ create_cache(DistEntry *dep)
     int i;
     ErtsAtomCache *cp;
 
-    ERTS_LC_ASSERT(
-	is_internal_port(dep->cid)
-	&& erts_lc_is_port_locked(erts_port_lookup_raw(dep->cid)));
+    ERTS_LC_ASSERT(is_nil(dep->cid));
     ASSERT(!dep->cache);
 
     dep->cache = cp = (ErtsAtomCache*) erts_alloc(ERTS_ALC_T_DCACHE,
@@ -176,11 +174,13 @@ Uint erts_dist_cache_size(void)
 }
 
 static ErtsProcList *
-get_suspended_on_de(DistEntry *dep, Uint32 unset_qflgs)
+get_suspended_on_de(DistEntry *dep, erts_aint32_t unset_qflgs)
 {
+    erts_aint32_t qflgs;
     ERTS_LC_ASSERT(erts_lc_mtx_is_locked(&dep->qlock));
-    dep->qflgs &= ~unset_qflgs;
-    if (dep->qflgs & ERTS_DE_QFLG_EXIT) {
+    qflgs = erts_atomic32_read_band_acqb(&dep->qflgs, ~unset_qflgs);
+    qflgs &= ~unset_qflgs;
+    if (qflgs & ERTS_DE_QFLG_EXIT) {
 	/* No resume when exit has been scheduled */
 	return NULL;
     }
@@ -446,7 +446,35 @@ inc_no_nodes(void)
 #endif
     erts_atomic_inc_mb(&no_nodes);
 }
-	
+
+static void
+kill_dist_ctrl_proc(void *vpid)
+{
+    Eterm pid = (Eterm) vpid;
+    ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
+    Process *rp = erts_pid2proc(NULL, 0, pid, rp_locks);
+    if (rp) {
+        erts_send_exit_signal(NULL, rp->common.id, rp, &rp_locks,
+                              am_kill, NIL, NULL, 0);
+        if (rp_locks)
+            erts_proc_unlock(rp, rp_locks);
+    }
+}
+
+static void
+schedule_kill_dist_ctrl_proc(Eterm pid)
+{
+    ErtsSchedulerData *esdp = erts_get_scheduler_data();
+    int sched_id = 1;
+    if (!esdp || ERTS_SCHEDULER_IS_DIRTY(esdp))
+        sched_id = 1;
+    else
+        sched_id = (int) esdp->no;
+    erts_schedule_misc_aux_work(sched_id,
+                                kill_dist_ctrl_proc,
+                                (void *) (UWord) pid);
+}
+
 /*
  * proc is currently running or exiting process.
  */
@@ -456,58 +484,62 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason)
 
     if (dep == erts_this_dist_entry) {  /* Net kernel has died (clean up!!) */
 	DistEntry *tdep;
-	int no_dist_port = 0;
+	int no_dist_ctrl = 0;
 	Eterm nd_reason = (reason == am_no_network
 			   ? am_no_network
 			   : am_net_kernel_terminated);
 	erts_rwmtx_rlock(&erts_dist_table_rwmtx);
 
 	for (tdep = erts_hidden_dist_entries; tdep; tdep = tdep->next)
-	    no_dist_port++;
+	    no_dist_ctrl++;
 	for (tdep = erts_visible_dist_entries; tdep; tdep = tdep->next)
-	    no_dist_port++;
+	    no_dist_ctrl++;
 
 	/* KILL all port controllers */
-	if (no_dist_port == 0)
+	if (no_dist_ctrl == 0)
 	    erts_rwmtx_runlock(&erts_dist_table_rwmtx);
 	else {
 	    Eterm def_buf[128];
 	    int i = 0;
-	    Eterm *dist_port;
+	    Eterm *dist_ctrl;
 
-	    if (no_dist_port <= sizeof(def_buf)/sizeof(def_buf[0]))
-		dist_port = &def_buf[0];
+	    if (no_dist_ctrl <= sizeof(def_buf)/sizeof(def_buf[0]))
+		dist_ctrl = &def_buf[0];
 	    else
-		dist_port = erts_alloc(ERTS_ALC_T_TMP,
-				       sizeof(Eterm)*no_dist_port);
+		dist_ctrl = erts_alloc(ERTS_ALC_T_TMP,
+				       sizeof(Eterm)*no_dist_ctrl);
 	    for (tdep = erts_hidden_dist_entries; tdep; tdep = tdep->next) {
-		ASSERT(is_internal_port(tdep->cid));
-		dist_port[i++] = tdep->cid;
+		ASSERT(is_internal_port(tdep->cid) || is_internal_pid(tdep->cid));
+		dist_ctrl[i++] = tdep->cid;
 	    }
 	    for (tdep = erts_visible_dist_entries; tdep; tdep = tdep->next) {
-		ASSERT(is_internal_port(tdep->cid));
-		dist_port[i++] = tdep->cid;
+		ASSERT(is_internal_port(tdep->cid) || is_internal_pid(tdep->cid));
+		dist_ctrl[i++] = tdep->cid;
 	    }
 	    erts_rwmtx_runlock(&erts_dist_table_rwmtx);
 
-	    for (i = 0; i < no_dist_port; i++) {
-		Port *prt = erts_port_lookup(dist_port[i],
-					     ERTS_PORT_SFLGS_INVALID_LOOKUP);
-		if (!prt)
-		    continue;
-		ASSERT(erts_atomic32_read_nob(&prt->state)
-		       & ERTS_PORT_SFLG_DISTRIBUTION);
-
-		erts_port_exit(NULL, ERTS_PORT_SIG_FLG_FORCE_SCHED,
-			       prt, dist_port[i], nd_reason, NULL);
+	    for (i = 0; i < no_dist_ctrl; i++) {
+                if (is_internal_pid(dist_ctrl[i]))
+                    schedule_kill_dist_ctrl_proc(dist_ctrl[i]);
+                else {
+                    Port *prt = erts_port_lookup(dist_ctrl[i],
+                                                 ERTS_PORT_SFLGS_INVALID_LOOKUP);
+                    if (prt) {
+                        ASSERT(erts_atomic32_read_nob(&prt->state)
+                               & ERTS_PORT_SFLG_DISTRIBUTION);
+
+                        erts_port_exit(NULL, ERTS_PORT_SIG_FLG_FORCE_SCHED,
+                                       prt, dist_ctrl[i], nd_reason, NULL);
+                    }
+                }
 	    }
 
-	    if (dist_port != &def_buf[0])
-		erts_free(ERTS_ALC_T_TMP, dist_port);
+	    if (dist_ctrl != &def_buf[0])
+		erts_free(ERTS_ALC_T_TMP, dist_ctrl);
 	}
 
 	/*
-	 * When last dist port exits, node will be taken
+	 * When last dist ctrl exits, node will be taken
 	 * from alive to not alive.
 	 */
 	ASSERT(is_nil(nodedown.reason) && !nodedown.bp);
@@ -524,7 +556,7 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason)
 					  &nodedown.bp->off_heap);
 	}
     }
-    else { /* Call from distribution port */
+    else { /* Call from distribution controller (port/process) */
 	NetExitsContext nec = {dep};
 	ErtsLink *nlinks;
 	ErtsLink *node_links;
@@ -534,24 +566,23 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason)
 	erts_atomic_set_mb(&dep->dist_cmd_scheduled, 1);
 	erts_de_rwlock(dep);
 
-	ERTS_LC_ASSERT(is_internal_port(dep->cid)
-			   && erts_lc_is_port_locked(erts_port_lookup_raw(dep->cid)));
+        if (is_internal_port(dep->cid)) {
+            ERTS_LC_ASSERT(erts_lc_is_port_locked(erts_port_lookup_raw(dep->cid)));
 
-	if (erts_port_task_is_scheduled(&dep->dist_cmd))
-	    erts_port_task_abort(&dep->dist_cmd);
+            if (erts_port_task_is_scheduled(&dep->dist_cmd))
+                erts_port_task_abort(&dep->dist_cmd);
+        }
 
 	if (dep->status & ERTS_DE_SFLG_EXITING) {
 #ifdef DEBUG
-	    erts_mtx_lock(&dep->qlock);
-	    ASSERT(dep->qflgs & ERTS_DE_QFLG_EXIT);
-	    erts_mtx_unlock(&dep->qlock);
+	    ASSERT(erts_atomic32_read_nob(&dep->qflgs) & ERTS_DE_QFLG_EXIT);
 #endif
 	}
 	else {
 	    dep->status |= ERTS_DE_SFLG_EXITING;
 	    erts_mtx_lock(&dep->qlock);
-	    ASSERT(!(dep->qflgs & ERTS_DE_QFLG_EXIT));
-	    dep->qflgs |= ERTS_DE_QFLG_EXIT;
+	    ASSERT(!(erts_atomic32_read_nob(&dep->qflgs) & ERTS_DE_QFLG_EXIT));
+	    erts_atomic32_read_bor_relb(&dep->qflgs, ERTS_DE_QFLG_EXIT);
 	    erts_mtx_unlock(&dep->qlock);
 	}
 
@@ -616,6 +647,9 @@ void init_dist(void)
     dgroup_leader_trap = trap_function(am_dgroup_leader,2);
     dexit_trap = trap_function(am_dexit, 2);
     dmonitor_p_trap = trap_function(am_dmonitor_p, 2);
+    dist_ctrl_put_data_trap = erts_export_put(am_erts_internal,
+                                              am_dist_ctrl_put_data,
+                                              2);
 }
 
 #define ErtsDistOutputBuf2Binary(OB) \
@@ -658,6 +692,8 @@ static void clear_dist_entry(DistEntry *dep)
     ErtsDistOutputBuf *obuf;
 
     erts_de_rwlock(dep);
+    erts_atomic_set_nob(&dep->input_handler,
+                        (erts_aint_t) NIL);
     cache = dep->cache;
     dep->cache = NULL;
 
@@ -671,6 +707,9 @@ static void clear_dist_entry(DistEntry *dep)
 
     erts_mtx_lock(&dep->qlock);
 
+    erts_atomic64_set_nob(&dep->in, 0);
+    erts_atomic64_set_nob(&dep->out, 0);
+
     if (!dep->out_queue.last)
 	obuf = dep->finalized_out_queue.first;
     else {
@@ -678,8 +717,15 @@ static void clear_dist_entry(DistEntry *dep)
 	obuf = dep->out_queue.first;
     }
 
+    if (dep->tmp_out_queue.first) {
+        dep->tmp_out_queue.last->next = obuf;
+        obuf = dep->tmp_out_queue.first;
+    }
+
     dep->out_queue.first = NULL;
     dep->out_queue.last = NULL;
+    dep->tmp_out_queue.first = NULL;
+    dep->tmp_out_queue.last = NULL;
     dep->finalized_out_queue.first = NULL;
     dep->finalized_out_queue.last = NULL;
     dep->status = 0;
@@ -704,8 +750,9 @@ static void clear_dist_entry(DistEntry *dep)
 
     if (obufsize) {
 	erts_mtx_lock(&dep->qlock);
-	ASSERT(dep->qsize >= obufsize);
-	dep->qsize -= obufsize;
+	ASSERT(erts_atomic_read_nob(&dep->qsize) >= obufsize);
+        erts_atomic_add_nob(&dep->qsize,
+                            (erts_aint_t) -obufsize);
 	erts_mtx_unlock(&dep->qlock);
     }
 }
@@ -904,11 +951,30 @@ erts_dsig_send_msg(Eterm remote, Eterm message, ErtsSendContext* ctx)
     }
 #endif
 
-    if (token != NIL)
-	ctl = TUPLE4(&ctx->ctl_heap[0],
-		     make_small(DOP_SEND_TT), am_Empty, remote, token);
-    else
-	ctl = TUPLE3(&ctx->ctl_heap[0], make_small(DOP_SEND), am_Empty, remote);
+    if (token != NIL) {
+        Eterm el1, el2;
+        if (ctx->dep->flags & DFLAG_SEND_SENDER) {
+            el1 = make_small(DOP_SEND_SENDER_TT);
+            el2 = sender->common.id;
+        }
+        else {
+            el1 = make_small(DOP_SEND_TT);
+            el2 = am_Empty;
+        }
+	ctl = TUPLE4(&ctx->ctl_heap[0], el1, el2, remote, token);
+    }
+    else {
+        Eterm el1, el2;
+        if (ctx->dep->flags & DFLAG_SEND_SENDER) {
+            el1 = make_small(DOP_SEND_SENDER);
+            el2 = sender->common.id;
+        }
+        else {
+            el1 = make_small(DOP_SEND);
+            el2 = am_Empty;
+        }
+	ctl = TUPLE3(&ctx->ctl_heap[0], el1, el2, remote);
+    }
     DTRACE6(message_send, sender_name, receiver_name,
             msize, tok_label, tok_lastcnt, tok_serial);
     DTRACE7(message_send_remote, sender_name, node_name, receiver_name,
@@ -1145,6 +1211,7 @@ int erts_net_message(Port *prt,
     ErtsLink *lnk;
     Uint tuple_arity;
     int res;
+    Uint32 connection_id;
 #ifdef ERTS_DIST_MSG_DBG
     ErlDrvSizeT orig_len = len;
 #endif
@@ -1153,14 +1220,16 @@ int erts_net_message(Port *prt,
 
     ERTS_CHK_NO_PROC_LOCKS;
 
-    ERTS_LC_ASSERT(erts_lc_is_port_locked(prt));
+    ERTS_LC_ASSERT(!prt || erts_lc_is_port_locked(prt));
 
     if (!erts_is_alive) {
 	UnUseTmpHeapNoproc(DIST_CTL_DEFAULT_SIZE);
 	return 0;
     }
-    if (hlen != 0)
-	goto data_error;
+
+
+    ASSERT(hlen == 0);
+
     if (len == 0) {  /* HANDLE TICK !!! */
 	UnUseTmpHeapNoproc(DIST_CTL_DEFAULT_SIZE);
 	return 0;
@@ -1179,30 +1248,31 @@ int erts_net_message(Port *prt,
 	len--;
     }
 
-    if (len == 0) {
-	PURIFY_MSG("data error");
-	goto data_error;
-    }
-
-    res = erts_prepare_dist_ext(&ede, t, len, dep, dep->cache);
+    res = erts_prepare_dist_ext(&ede, t, len, dep, dep->cache, &connection_id);
 
-    if (res >= 0)
-	res = ctl_len = erts_decode_dist_ext_size(&ede);
-    else {
+    switch (res) {
+    case ERTS_PREP_DIST_EXT_CLOSED:
+        return 0; /* Connection not alive; ignore signal... */
+    case ERTS_PREP_DIST_EXT_FAILED:
 #ifdef ERTS_DIST_MSG_DBG
 	erts_fprintf(stderr, "DIST MSG DEBUG: erts_prepare_dist_ext() failed:\n");
 	bw(buf, orig_len);
 #endif
-	ctl_len = 0;
-    }
-
-    if (res < 0) {
+        goto data_error;
+    case ERTS_PREP_DIST_EXT_SUCCESS:
+	ctl_len = erts_decode_dist_ext_size(&ede);
+        if (ctl_len < 0) {
 #ifdef ERTS_DIST_MSG_DBG
-	erts_fprintf(stderr, "DIST MSG DEBUG: erts_decode_dist_ext_size(CTL) failed:\n");
-	bw(buf, orig_len);
+            erts_fprintf(stderr, "DIST MSG DEBUG: erts_decode_dist_ext_size(CTL) failed:\n");
+            bw(buf, orig_len);
 #endif
-	PURIFY_MSG("data error");
-	goto data_error;
+            PURIFY_MSG("data error");
+            goto data_error;
+        }
+        break;
+    default:
+        ERTS_INTERNAL_ERROR("Unexpected result from erts_prepare_dist_ext()");
+        break;
     }
 
     if (ctl_len > DIST_CTL_DEFAULT_SIZE) {
@@ -1233,6 +1303,7 @@ int erts_net_message(Port *prt,
     }
 
     token_size = 0;
+    token = NIL;
 
     switch (type = unsigned_val(tuple[1])) {
     case DOP_LINK:
@@ -1462,38 +1533,52 @@ int erts_net_message(Port *prt,
 	}
 	break;
 
+    case DOP_SEND_SENDER_TT: {
+        Uint xsize;
     case DOP_SEND_TT:
+
 	if (tuple_arity != 4) {
 	    goto invalid_message;
 	}
-	
-	token_size = size_object(tuple[4]);
-	/* Fall through ... */
+
+	token = tuple[4];
+	token_size = size_object(token);
+        xsize = ERTS_HEAP_FRAG_SIZE(token_size);
+        goto send_common;
+
+    case DOP_SEND_SENDER:
     case DOP_SEND:
+
+        token = NIL;
+        xsize = 0;
+	if (tuple_arity != 3)
+	    goto invalid_message;
+
+    send_common:
+
 	/*
-	 * There is intentionally no testing of the cookie (it is always '')
-	 * from R9B and onwards.
+         * If DOP_SEND_SENDER or DOP_SEND_SENDER_TT element 2 contains
+         * the sender pid (i.e. DFLAG_SEND_SENDER is set); otherwise,
+         * the atom '' (empty cookie).
 	 */
+        ASSERT((type == DOP_SEND_SENDER || type == DOP_SEND_SENDER_TT)
+               ? (is_pid(tuple[2]) && (dep->flags & DFLAG_SEND_SENDER))
+               : tuple[2] == am_Empty);
+
 #ifdef ERTS_DIST_MSG_DBG
 	dist_msg_dbg(&ede, "MSG", buf, orig_len);
 #endif
-	if (type != DOP_SEND_TT && tuple_arity != 3) {
-	    goto invalid_message;
-	}
 	to = tuple[3];
 	if (is_not_pid(to)) {
 	    goto invalid_message;
 	}
 	rp = erts_proc_lookup(to);
 	if (rp) {
-	    Uint xsize = type == DOP_SEND ? 0 : ERTS_HEAP_FRAG_SIZE(token_size);
 	    ErtsProcLocks locks = 0;
 	    ErtsDistExternal *ede_copy;
 
 	    ede_copy = erts_make_dist_ext_copy(&ede, xsize);
-	    if (type == DOP_SEND) {
-		token = NIL;
-	    } else {
+	    if (is_not_nil(token)) {
 		ErlHeapFragment *heap_frag;
 		ErlOffHeap *ohp;
 		ASSERT(xsize);
@@ -1501,15 +1586,15 @@ int erts_net_message(Port *prt,
 		ERTS_INIT_HEAP_FRAG(heap_frag, token_size, token_size);
 		hp = heap_frag->mem;
 		ohp = &heap_frag->off_heap;
-		token = tuple[4];
 		token = copy_struct(token, token_size, &hp, ohp);
 	    }
 
-	    erts_queue_dist_message(rp, locks, ede_copy, token, tuple[2]);
+	    erts_queue_dist_message(rp, locks, ede_copy, token, am_Empty);
 	    if (locks)
 		erts_proc_unlock(rp, locks);
 	}
 	break;
+    }
 
     case DOP_MONITOR_P_EXIT: {
 	/* We are monitoring a process on the remote node which dies, we get
@@ -1723,7 +1808,7 @@ decode_error:
     }
 data_error:
     UnUseTmpHeapNoproc(DIST_CTL_DEFAULT_SIZE);
-    erts_deliver_port_exit(prt, dep->cid, am_killed, 0, 1);
+    erts_kill_dist_connection(dep, connection_id);
     ERTS_CHK_NO_PROC_LOCKS;
     return -1;
 }
@@ -1744,6 +1829,31 @@ static int dsig_send_ctl(ErtsDSigData* dsdp, Eterm ctl, int force_busy)
     return ret;
 }
 
+static ERTS_INLINE void
+notify_dist_data(Process *c_p, Eterm pid)
+{
+    Process *rp;
+    ErtsProcLocks rp_locks;
+
+    ASSERT(erts_get_scheduler_data()
+           && !ERTS_SCHEDULER_IS_DIRTY(erts_get_scheduler_data()));
+    ASSERT(is_internal_pid(pid));
+
+    if (c_p && c_p->common.id == pid) {
+        rp = c_p;
+        rp_locks = ERTS_PROC_LOCK_MAIN;
+    }
+    else {
+        rp = erts_proc_lookup(pid);
+        rp_locks = 0;
+    }
+
+    if (rp) {
+        ErtsMessage *mp = erts_alloc_message(0, NULL);
+        erts_queue_message(rp, rp_locks, mp, am_dist_data, am_system);
+    }
+}
+
 int
 erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx)
 {
@@ -1859,12 +1969,32 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx)
 		free_dist_obuf(ctx->obuf);
 	    }
 	    else {
+                Sint qsize;
+                erts_aint32_t qflgs;
 		ErtsProcList *plp = NULL;
+                Eterm notify_proc = NIL;
+                Sint obsz = size_obuf(ctx->obuf);
+
 		erts_mtx_lock(&dep->qlock);
-		dep->qsize += size_obuf(ctx->obuf);
-		if (dep->qsize >= erts_dist_buf_busy_limit)
-		    dep->qflgs |= ERTS_DE_QFLG_BUSY;
-		if (!ctx->force_busy && (dep->qflgs & ERTS_DE_QFLG_BUSY)) {
+		qsize = erts_atomic_add_read_nob(&dep->qsize, (erts_aint_t) obsz);
+                ASSERT(qsize >= obsz);
+                qflgs = erts_atomic32_read_nob(&dep->qflgs);
+		if (!(qflgs & ERTS_DE_QFLG_BUSY) && qsize >= erts_dist_buf_busy_limit) {
+		    erts_atomic32_read_bor_relb(&dep->qflgs, ERTS_DE_QFLG_BUSY);
+                    qflgs |= ERTS_DE_QFLG_BUSY;
+                }
+                if (qsize == obsz && (qflgs & ERTS_DE_QFLG_REQ_INFO)) {
+                    /* Previously empty queue and info requested... */
+                    qflgs = erts_atomic32_read_band_mb(&dep->qflgs,
+                                                       ~ERTS_DE_QFLG_REQ_INFO);
+                    if (qflgs & ERTS_DE_QFLG_REQ_INFO) {
+                        notify_proc = dep->cid;
+                        ASSERT(is_internal_pid(notify_proc));
+                    }
+                    /* else: requester will send itself the message... */
+                    qflgs &= ~ERTS_DE_QFLG_REQ_INFO;
+                }
+		if (!ctx->force_busy && (qflgs & ERTS_DE_QFLG_BUSY)) {
 		    erts_mtx_unlock(&dep->qlock);
 
 		    plp = erts_proclist_create(ctx->c_p);
@@ -1881,7 +2011,8 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx)
 		dep->out_queue.last = ctx->obuf;
 
 		if (!ctx->force_busy) {
-		    if (!(dep->qflgs & ERTS_DE_QFLG_BUSY)) {
+                    qflgs = erts_atomic32_read_nob(&dep->qflgs);
+		    if (!(qflgs & ERTS_DE_QFLG_BUSY)) {
 			if (suspended)
 			    resume = 1; /* was busy when we started, but isn't now */
     #ifdef USE_VM_PROBES
@@ -1906,8 +2037,11 @@ erts_dsig_send(ErtsDSigData *dsdp, struct erts_dsig_send_context* ctx)
 		}
 
 		erts_mtx_unlock(&dep->qlock);
-		erts_schedule_dist_command(NULL, dep);
+                if (is_internal_port(dep->cid))
+                    erts_schedule_dist_command(NULL, dep);
 		erts_de_runlock(dep);
+                if (is_internal_pid(notify_proc))
+                    notify_dist_data(ctx->c_p, notify_proc);
 
 		if (resume) {
 		    erts_resume(ctx->c_p, ERTS_PROC_LOCK_MAIN);
@@ -1961,16 +2095,20 @@ static Uint
 dist_port_command(Port *prt, ErtsDistOutputBuf *obuf)
 {
     int fpe_was_unmasked;
-    Uint size = obuf->ext_endp - obuf->extp;
+    ErlDrvSizeT size;
+    char *bufp;
 
     ERTS_CHK_NO_PROC_LOCKS;
     ERTS_LC_ASSERT(erts_lc_is_port_locked(prt));
 
-    if (size > (Uint) INT_MAX)
-	erts_exit(ERTS_DUMP_EXIT,
-		 "Absurdly large distribution output data buffer "
-		 "(%beu bytes) passed.\n",
-		 size);
+    if (!obuf) {
+        size = 0;
+        bufp = NULL;
+    }
+    else {
+        size = obuf->ext_endp - obuf->extp;
+        bufp = (char*) obuf->extp;
+    }
 
 #ifdef USE_VM_PROBES
     if (DTRACE_ENABLED(dist_output)) {
@@ -1985,11 +2123,10 @@ dist_port_command(Port *prt, ErtsDistOutputBuf *obuf)
                 remote_str, size);
     }
 #endif
+
     prt->caller = NIL;
     fpe_was_unmasked = erts_block_fpe();
-    (*prt->drv_ptr->output)((ErlDrvData) prt->drv_data,
-			    (char*) obuf->extp,
-			    (int) size);
+    (*prt->drv_ptr->output)((ErlDrvData) prt->drv_data, bufp, size);
     erts_unblock_fpe(fpe_was_unmasked);
     return size;
 }
@@ -1998,7 +2135,7 @@ static Uint
 dist_port_commandv(Port *prt, ErtsDistOutputBuf *obuf)
 {
     int fpe_was_unmasked;
-    Uint size = obuf->ext_endp - obuf->extp;
+    ErlDrvSizeT size;
     SysIOVec iov[2];
     ErlDrvBinary* bv[2];
     ErlIOVec eiov;
@@ -2006,25 +2143,33 @@ dist_port_commandv(Port *prt, ErtsDistOutputBuf *obuf)
     ERTS_CHK_NO_PROC_LOCKS;
     ERTS_LC_ASSERT(erts_lc_is_port_locked(prt));
 
-    if (size > (Uint) INT_MAX)
-	erts_exit(ERTS_DUMP_EXIT,
-		 "Absurdly large distribution output data buffer "
-		 "(%beu bytes) passed.\n",
-		 size);
-
     iov[0].iov_base = NULL;
     iov[0].iov_len = 0;
     bv[0] = NULL;
 
-    iov[1].iov_base = obuf->extp;
-    iov[1].iov_len = size;
-    bv[1] = Binary2ErlDrvBinary(ErtsDistOutputBuf2Binary(obuf));
+    if (!obuf) {
+        size = 0;
+        eiov.vsize = 1;
+    }
+    else {
+        size = obuf->ext_endp - obuf->extp;
+        eiov.vsize = 2;
+
+        iov[1].iov_base = obuf->extp;
+        iov[1].iov_len = size;
+        bv[1] = Binary2ErlDrvBinary(ErtsDistOutputBuf2Binary(obuf));
+    }
 
-    eiov.vsize = 2;
     eiov.size = size;
     eiov.iov = iov;
     eiov.binv = bv;
 
+    if (size > (Uint) INT_MAX)
+	erts_exit(ERTS_DUMP_EXIT,
+		 "Absurdly large distribution output data buffer "
+		 "(%beu bytes) passed.\n",
+		 size);
+
     ASSERT(prt->drv_ptr->outputv);
 
 #ifdef USE_VM_PROBES
@@ -2072,7 +2217,7 @@ erts_dist_command(Port *prt, int reds_limit)
     Sint reds = ERTS_PORT_REDS_DIST_CMD_START;
     Uint32 status;
     Uint32 flags;
-    Sint obufsize = 0;
+    Sint qsize, obufsize = 0;
     ErtsDistOutputQueue oq, foq;
     DistEntry *dep = prt->dist_entry;
     Uint (*send)(Port *prt, ErtsDistOutputBuf *obuf);
@@ -2081,9 +2226,6 @@ erts_dist_command(Port *prt, int reds_limit)
 
     ERTS_LC_ASSERT(erts_lc_is_port_locked(prt));
 
-    erts_refc_inc(&dep->refc, 1); /* Otherwise dist_entry might be
-				     removed if port command fails */
-
     erts_atomic_set_mb(&dep->dist_cmd_scheduled, 0);
 
     erts_de_rlock(dep);
@@ -2094,7 +2236,6 @@ erts_dist_command(Port *prt, int reds_limit)
 
     if (status & ERTS_DE_SFLG_EXITING) {
 	erts_deliver_port_exit(prt, prt->common.id, am_killed, 0, 1);
-	erts_deref_dist_entry(dep);
 	return reds + ERTS_PORT_REDS_DIST_CMD_EXIT;
     }
 
@@ -2128,20 +2269,20 @@ erts_dist_command(Port *prt, int reds_limit)
     if (!(sched_flags & ERTS_PTS_FLG_BUSY_PORT) && foq.first) {
 	int preempt = 0;
 	do {
-	    Uint size;
-	    ErtsDistOutputBuf *fob;
-
-	    size = (*send)(prt, foq.first);
-	    esdp->io.out += (Uint64) size;
+            Uint size;
+            ErtsDistOutputBuf *fob;
+            size = (*send)(prt, foq.first);
+            erts_atomic64_inc_nob(&dep->out);
+            esdp->io.out += (Uint64) size;
 #ifdef ERTS_RAW_DIST_MSG_DBG
-	    erts_fprintf(stderr, ">> ");
-	    bw(foq.first->extp, size);
+            erts_fprintf(stderr, ">> ");
+            bw(foq.first->extp, size);
 #endif
-	    reds += ERTS_PORT_REDS_DIST_CMD_DATA(size);
-	    fob = foq.first;
-	    obufsize += size_obuf(fob);
-	    foq.first = foq.first->next;
-	    free_dist_obuf(fob);
+            reds += ERTS_PORT_REDS_DIST_CMD_DATA(size);
+            fob = foq.first;
+            obufsize += size_obuf(fob);
+            foq.first = foq.first->next;
+            free_dist_obuf(fob);
 	    sched_flags = erts_atomic32_read_nob(&prt->sched.flags);
 	    preempt = reds > reds_limit || (sched_flags & ERTS_PTS_FLG_EXIT);
 	    if (sched_flags & ERTS_PTS_FLG_BUSY_PORT)
@@ -2202,31 +2343,33 @@ erts_dist_command(Port *prt, int reds_limit)
 	}
     }
     else {
+        int de_busy;
 	int preempt = 0;
 	while (oq.first && !preempt) {
-	    ErtsDistOutputBuf *fob;
-	    Uint size;
-	    oq.first->extp
-		= erts_encode_ext_dist_header_finalize(oq.first->extp,
-						       dep->cache,
-						       flags);
-	    reds += ERTS_PORT_REDS_DIST_CMD_FINALIZE;
-	    if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE))
-		*--oq.first->extp = PASS_THROUGH; /* Old node; 'pass through'
-						     needed */
-	    ASSERT(&oq.first->data[0] <= oq.first->extp
-		   && oq.first->extp < oq.first->ext_endp);
-	    size = (*send)(prt, oq.first);
-	    esdp->io.out += (Uint64) size;
+            ErtsDistOutputBuf *fob;
+            Uint size;
+            oq.first->extp
+                = erts_encode_ext_dist_header_finalize(oq.first->extp,
+                                                       dep->cache,
+                                                       flags);
+            reds += ERTS_PORT_REDS_DIST_CMD_FINALIZE;
+            if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE))
+                *--oq.first->extp = PASS_THROUGH; /* Old node; 'pass through'
+                                                     needed */
+            ASSERT(&oq.first->data[0] <= oq.first->extp
+                   && oq.first->extp < oq.first->ext_endp);
+            size = (*send)(prt, oq.first);
+            erts_atomic64_inc_nob(&dep->out);
+            esdp->io.out += (Uint64) size;
 #ifdef ERTS_RAW_DIST_MSG_DBG
-	    erts_fprintf(stderr, ">> ");
-	    bw(oq.first->extp, size);
+            erts_fprintf(stderr, ">> ");
+            bw(oq.first->extp, size);
 #endif
-	    reds += ERTS_PORT_REDS_DIST_CMD_DATA(size);
-	    fob = oq.first;
-	    obufsize += size_obuf(fob);
-	    oq.first = oq.first->next;
-	    free_dist_obuf(fob);
+            reds += ERTS_PORT_REDS_DIST_CMD_DATA(size);
+            fob = oq.first;
+            obufsize += size_obuf(fob);
+            oq.first = oq.first->next;
+            free_dist_obuf(fob);
 	    sched_flags = erts_atomic32_read_nob(&prt->sched.flags);
 	    preempt = reds > reds_limit || (sched_flags & ERTS_PTS_FLG_EXIT);
 	    if ((sched_flags & ERTS_PTS_FLG_BUSY_PORT) && oq.first && !preempt)
@@ -2255,12 +2398,13 @@ erts_dist_command(Port *prt, int reds_limit)
 	 * processes.
 	 */
 	erts_mtx_lock(&dep->qlock);
-	ASSERT(dep->qsize >= obufsize);
-	dep->qsize -= obufsize;
+        de_busy = !!(erts_atomic32_read_nob(&dep->qflgs) & ERTS_DE_QFLG_BUSY);
+        qsize = (Sint) erts_atomic_add_read_nob(&dep->qsize,
+                                                (erts_aint_t) -obufsize);
+	ASSERT(qsize >= 0);
 	obufsize = 0;
 	if (!(sched_flags & ERTS_PTS_FLG_BUSY_PORT)
-	    && (dep->qflgs & ERTS_DE_QFLG_BUSY)
-	    && dep->qsize < erts_dist_buf_busy_limit) {
+	    && de_busy && qsize < erts_dist_buf_busy_limit) {
 	    ErtsProcList *suspendees;
 	    int resumed;
 	    suspendees = get_suspended_on_de(dep, ERTS_DE_QFLG_BUSY);
@@ -2280,8 +2424,13 @@ erts_dist_command(Port *prt, int reds_limit)
     if (obufsize != 0) {
 	ASSERT(obufsize > 0);
 	erts_mtx_lock(&dep->qlock);
-	ASSERT(dep->qsize >= obufsize);
-	dep->qsize -= obufsize;
+#ifdef DEBUG
+        qsize = (Sint) erts_atomic_add_read_nob(&dep->qsize,
+                                                (erts_aint_t) -obufsize);
+	ASSERT(qsize >= 0);
+#else
+        erts_atomic_add_nob(&dep->qsize, (erts_aint_t) -obufsize);
+#endif
 	erts_mtx_unlock(&dep->qlock);
     }
 
@@ -2299,8 +2448,6 @@ erts_dist_command(Port *prt, int reds_limit)
     if (reds > INT_MAX/2)
 	reds = INT_MAX/2;
 
-    erts_deref_dist_entry(dep);
-
     return reds;
 
  preempted:
@@ -2337,7 +2484,7 @@ erts_dist_command(Port *prt, int reds_limit)
 
 #ifdef DEBUG
 	erts_mtx_lock(&dep->qlock);
-	ASSERT(dep->qsize == obufsize);
+	ASSERT(erts_atomic_read_nob(&dep->qsize) == obufsize);
 	erts_mtx_unlock(&dep->qlock);
 #endif
     }
@@ -2348,7 +2495,7 @@ erts_dist_command(Port *prt, int reds_limit)
 	     * in out_queue.
 	     */
 	    erts_mtx_lock(&dep->qlock);
-	    dep->qsize -= obufsize;
+	    erts_atomic_add_nob(&dep->qsize, -obufsize);
 	    obufsize = 0;
 	    oq.last->next = dep->out_queue.first;
 	    dep->out_queue.first = oq.first;
@@ -2362,6 +2509,370 @@ erts_dist_command(Port *prt, int reds_limit)
     goto done;
 }
 
+#if 0
+
+int
+dist_data_finalize(Process *c_p, int reds_limit)
+{
+    int reds = 5;
+    DistEntry *dep = ;
+    ErtsDistOutputQueue oq, foq;
+    ErtsDistOutputBuf *ob;
+    int preempt;
+
+
+    erts_mtx_lock(&dep->qlock);
+    flags = dep->flags;
+    oq.first = dep->out_queue.first;
+    oq.last = dep->out_queue.last;
+    dep->out_queue.first = NULL;
+    dep->out_queue.last = NULL;
+    erts_mtx_unlock(&dep->qlock);
+
+    if (!oq.first) {
+        ASSERT(!oq.last);
+        oq.first = dep->tmp_out_queue.first;
+        oq.last = dep->tmp_out_queue.last;
+    }
+    else {
+        ErtsDistOutputBuf *f, *l;
+        ASSERT(oq.last);
+        if (dep->tmp_out_queue.last) {
+            dep->tmp_out_queue.last->next = oq.first;
+            oq.first = dep->tmp_out_queue.first;
+        }
+    }
+
+    if (!oq.first) {
+        /* Nothing to do... */
+        ASSERT(!oq.last);
+        return reds;
+    }
+
+    foq.first = dep->finalized_out_queue.first;
+    foq.last = dep->finalized_out_queue.last;
+
+    preempt = 0;
+    ob = oq.first;
+    ASSERT(ob);
+
+    do {
+        ob->extp = erts_encode_ext_dist_header_finalize(ob->extp,
+                                                        dep->cache,
+                                                        flags);
+        if (!(flags & DFLAG_DIST_HDR_ATOM_CACHE))
+            *--ob->extp = PASS_THROUGH; /* Old node; 'pass through'
+                                           needed */
+        ASSERT(&ob->data[0] <= ob->extp && ob->extp < ob->ext_endp);
+        reds += ERTS_PORT_REDS_DIST_CMD_FINALIZE;
+        preempt = reds > reds_limit;
+        if (preempt)
+            break;
+        ob = ob->next;
+    } while (ob);
+    /*
+     * At least one buffer was finalized; if we got preempted,
+     * ob points to the last buffer that we finalized.
+     */
+    if (foq.last)
+        foq.last->next = oq.first;
+    else
+        foq.first = oq.first;
+    if (!preempt) {
+        /* All buffers finalized */
+        foq.last = oq.last;
+        oq.first = oq.last = NULL;
+    }
+    else {
+        /* Not all buffers finalized; split oq. */
+        foq.last = ob;
+        oq.first = ob->next;
+        if (oq.first)
+            ob->next = NULL;
+        else
+            oq.last = NULL;
+    }
+
+    dep->finalized_out_queue.first = foq.first;
+    dep->finalized_out_queue.last = foq.last;
+    dep->tmp_out_queue.first = oq.first;
+    dep->tmp_out_queue.last = oq.last;
+
+    return reds;
+}
+
+#endif
+
+BIF_RETTYPE
+dist_ctrl_get_data_notification_1(BIF_ALIST_1)
+{
+    DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(BIF_P);
+    erts_aint32_t qflgs;
+    erts_aint_t qsize;
+    Eterm receiver = NIL;
+
+    if (!dep)
+        BIF_ERROR(BIF_P, EXC_NOTSUP);
+
+    if (erts_dhandle_to_dist_entry(BIF_ARG_1) != dep)
+        BIF_ERROR(BIF_P, BADARG);
+
+    /*
+     * Caller is the only one that can consume from this queue
+     * and the only one that can set the req-info flag...
+     */
+
+    erts_de_rlock(dep);
+
+    ASSERT(dep->cid == BIF_P->common.id);
+
+    qflgs = erts_atomic32_read_acqb(&dep->qflgs);
+
+    if (!(qflgs & ERTS_DE_QFLG_REQ_INFO)) {
+        qsize = erts_atomic_read_acqb(&dep->qsize);
+        ASSERT(qsize >= 0);
+        if (qsize > 0)
+            receiver = BIF_P->common.id; /* Notify ourselves... */
+        else { /* Empty queue; set req-info flag... */
+            qflgs = erts_atomic32_read_bor_mb(&dep->qflgs,
+                                                  ERTS_DE_QFLG_REQ_INFO);
+            qsize = erts_atomic_read_acqb(&dep->qsize);
+            ASSERT(qsize >= 0);
+            if (qsize > 0) {
+                qflgs = erts_atomic32_read_band_mb(&dep->qflgs,
+                                                       ~ERTS_DE_QFLG_REQ_INFO);
+                if (qflgs & ERTS_DE_QFLG_REQ_INFO)
+                    receiver = BIF_P->common.id; /* Notify ourselves... */
+                /* else: someone else will notify us... */
+            }
+            /* else: still empty queue... */
+        }
+    }
+    /* else: Already requested... */
+
+    erts_de_runlock(dep);
+
+    if (is_internal_pid(receiver))
+        notify_dist_data(BIF_P, receiver);
+
+    BIF_RET(am_ok);
+}
+
+BIF_RETTYPE
+dist_ctrl_put_data_2(BIF_ALIST_2)
+{
+    DistEntry *dep;
+    ErlDrvSizeT size;
+    Eterm input_handler;
+
+    if (is_binary(BIF_ARG_2))
+        size = binary_size(BIF_ARG_2);
+    else if (is_nil(BIF_ARG_2))
+        size = 0;
+    else if (is_list(BIF_ARG_2))
+        BIF_TRAP2(dist_ctrl_put_data_trap,
+                  BIF_P, BIF_ARG_1, BIF_ARG_2);
+    else
+        BIF_ERROR(BIF_P, BADARG);
+
+    dep = erts_dhandle_to_dist_entry(BIF_ARG_1);
+    if (!dep)
+        BIF_ERROR(BIF_P, BADARG);
+
+    input_handler = (Eterm) erts_atomic_read_nob(&dep->input_handler);
+
+    if (input_handler != BIF_P->common.id)
+        BIF_ERROR(BIF_P, EXC_NOTSUP);
+
+    erts_atomic64_inc_nob(&dep->in);
+
+    if (size != 0) {
+        byte *data, *temp_alloc = NULL;
+
+        data = (byte *) erts_get_aligned_binary_bytes(BIF_ARG_2, &temp_alloc);
+        if (!data)
+            BIF_ERROR(BIF_P, BADARG);
+
+        erts_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+
+        (void) erts_net_message(NULL, dep, NULL, 0, data, size);
+        /*
+         * We ignore any decode failures. On fatal failures the
+         * connection will be taken down by killing the
+         * distribution channel controller...
+         */
+
+        erts_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+
+        BUMP_REDS(BIF_P, 5);
+
+        erts_free_aligned_binary_bytes(temp_alloc);
+
+    }
+
+    BIF_RET(am_ok);
+}
+
+BIF_RETTYPE
+dist_get_stat_1(BIF_ALIST_1)
+{
+    Sint64 read, write, pend;
+    Eterm res, *hp, **hpp;
+    Uint sz, *szp;
+    DistEntry *dep = erts_dhandle_to_dist_entry(BIF_ARG_1);
+
+    if (!dep)
+        BIF_ERROR(BIF_P, BADARG);
+
+    erts_de_rlock(dep);
+
+    read = (Sint64) erts_atomic64_read_nob(&dep->in);
+    write = (Sint64) erts_atomic64_read_nob(&dep->out);
+    pend = (Sint64) erts_atomic_read_nob(&dep->qsize);
+
+    erts_de_runlock(dep);
+
+    sz = 0;
+    szp = &sz;
+    hpp = NULL;
+
+    while (1) {
+        res = erts_bld_tuple(hpp, szp, 4,
+                             am_ok,
+                             erts_bld_sint64(hpp, szp, read),
+                             erts_bld_sint64(hpp, szp, write),
+                             pend ? am_true : am_false);
+        if (hpp)
+            break;
+        hp = HAlloc(BIF_P, sz);
+        hpp = &hp;
+        szp = NULL;
+    }
+
+    BIF_RET(res);
+}
+
+BIF_RETTYPE
+dist_ctrl_input_handler_2(BIF_ALIST_2)
+{
+    DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(BIF_P);
+
+    if (!dep)
+        BIF_ERROR(BIF_P, EXC_NOTSUP);
+
+    if (erts_dhandle_to_dist_entry(BIF_ARG_1) != dep)
+        BIF_ERROR(BIF_P, BADARG);
+
+    if (is_not_internal_pid(BIF_ARG_2))
+        BIF_ERROR(BIF_P, BADARG);
+
+    erts_atomic_set_nob(&dep->input_handler,
+                        (erts_aint_t) BIF_ARG_2);
+
+    BIF_RET(am_ok);
+}
+
+BIF_RETTYPE
+dist_ctrl_get_data_1(BIF_ALIST_1)
+{
+    DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(BIF_P);
+    int reds = 1;
+    ErtsDistOutputBuf *obuf;
+    Eterm *hp;
+    ProcBin *pb;
+    erts_aint_t qsize;
+
+    if (!dep)
+        BIF_ERROR(BIF_P, EXC_NOTSUP);
+
+    if (erts_dhandle_to_dist_entry(BIF_ARG_1) != dep)
+        BIF_ERROR(BIF_P, BADARG);
+
+    erts_de_rlock(dep);
+
+    if (dep->status & ERTS_DE_SFLG_EXITING)
+        goto return_none;
+
+    ASSERT(dep->cid == BIF_P->common.id);
+
+#if 0
+    if (dep->finalized_out_queue.first) {
+        obuf = dep->finalized_out_queue.first;
+        dep->finalized_out_queue.first = obuf->next;
+        if (!obuf->next)
+            dep->finalized_out_queue.last = NULL;
+    }
+    else
+#endif
+    {
+        if (!dep->tmp_out_queue.first) {
+            ASSERT(!dep->tmp_out_queue.last);
+            qsize = erts_atomic_read_acqb(&dep->qsize);
+            if (qsize > 0) {
+                erts_mtx_lock(&dep->qlock);
+                dep->tmp_out_queue.first = dep->out_queue.first;
+                dep->tmp_out_queue.last = dep->out_queue.last;
+                dep->out_queue.first = NULL;
+                dep->out_queue.last = NULL;
+                erts_mtx_unlock(&dep->qlock);
+            }
+        }
+
+        if (!dep->tmp_out_queue.first) {
+            ASSERT(!dep->tmp_out_queue.last);
+        return_none:
+            erts_de_runlock(dep);
+            BIF_RET(am_none);
+        }
+        else {
+            obuf = dep->tmp_out_queue.first;
+            dep->tmp_out_queue.first = obuf->next;
+            if (!obuf->next)
+                dep->tmp_out_queue.last = NULL;
+        }
+
+        obuf->extp = erts_encode_ext_dist_header_finalize(obuf->extp,
+                                                          dep->cache,
+                                                          dep->flags);
+        reds += ERTS_PORT_REDS_DIST_CMD_FINALIZE;
+        if (!(dep->flags & DFLAG_DIST_HDR_ATOM_CACHE))
+            *--obuf->extp = PASS_THROUGH; /* 'pass through' needed */
+        ASSERT(&obuf->data[0] <= obuf->extp
+               && obuf->extp < obuf->ext_endp);
+    }
+
+    erts_atomic64_inc_nob(&dep->out);
+
+    erts_de_runlock(dep);
+
+    hp =  HAlloc(BIF_P, PROC_BIN_SIZE);
+    pb = (ProcBin *) (char *) hp;
+    pb->thing_word = HEADER_PROC_BIN;
+    pb->size = obuf->ext_endp - obuf->extp;
+    pb->next = MSO(BIF_P).first;
+    MSO(BIF_P).first = (struct erl_off_heap_header*) pb;
+    pb->val = ErtsDistOutputBuf2Binary(obuf);
+    pb->bytes = (byte*) obuf->extp;
+    pb->flags = 0;
+
+    qsize = erts_atomic_add_read_nob(&dep->qsize, -size_obuf(obuf));
+    ASSERT(qsize >= 0);
+
+    if (qsize < erts_dist_buf_busy_limit/2
+        && (erts_atomic32_read_acqb(&dep->qflgs) & ERTS_DE_QFLG_BUSY)) {
+        ErtsProcList *resume_procs = NULL;
+        erts_mtx_lock(&dep->qlock);
+        resume_procs = get_suspended_on_de(dep, ERTS_DE_QFLG_BUSY);
+        erts_mtx_unlock(&dep->qlock);
+        if (resume_procs) {
+            int resumed = erts_resume_processes(resume_procs);
+            reds += resumed*ERTS_PORT_REDS_DIST_CMD_RESUMED;
+        }
+    }
+
+    BIF_RET2(make_binary(pb), reds);
+}
+
 void
 erts_dist_port_not_busy(Port *prt)
 {
@@ -2385,18 +2896,20 @@ void
 erts_kill_dist_connection(DistEntry *dep, Uint32 connection_id)
 {
     erts_de_rwlock(dep);
-    if (is_internal_port(dep->cid)
-	&& connection_id == dep->connection_id
+    if (connection_id == dep->connection_id
 	&& !(dep->status & ERTS_DE_SFLG_EXITING)) {
 
 	dep->status |= ERTS_DE_SFLG_EXITING;
 
 	erts_mtx_lock(&dep->qlock);
-	ASSERT(!(dep->qflgs & ERTS_DE_QFLG_EXIT));
-	dep->qflgs |= ERTS_DE_QFLG_EXIT;
+	ASSERT(!(erts_atomic32_read_nob(&dep->qflgs) & ERTS_DE_QFLG_EXIT));
+	erts_atomic32_read_bor_nob(&dep->qflgs, ERTS_DE_QFLG_EXIT);
 	erts_mtx_unlock(&dep->qlock);
 
-	erts_schedule_dist_command(NULL, dep);
+        if (is_internal_port(dep->cid))
+            erts_schedule_dist_command(NULL, dep);
+        else if (is_internal_pid(dep->cid))
+            schedule_kill_dist_ctrl_proc(dep->cid);
     }
     erts_de_rwunlock(dep);
 }
@@ -2513,9 +3026,6 @@ info_dist_entry(fmtfn_t to, void *arg, DistEntry *dep, int visible, int connecte
   }
 
   erts_print(to, arg, "Name: %T", dep->sysname);
-#ifdef DEBUG
-  erts_print(to, arg, " (refc=%d)", erts_refc_read(&dep->refc, 0));
-#endif
   erts_print(to, arg, "\n");
   if (!connected && is_nil(dep->cid)) {
     if (dep->nlinks) {
@@ -2635,17 +3145,23 @@ BIF_RETTYPE setnode_2(BIF_ALIST_2)
 	goto error;
     }
 
-    net_kernel = erts_whereis_process(BIF_P, ERTS_PROC_LOCK_MAIN,
-				      am_net_kernel, ERTS_PROC_LOCK_MAIN, 0);
-    if (!net_kernel)
+    net_kernel = erts_whereis_process(BIF_P,
+                                      ERTS_PROC_LOCK_MAIN,
+				      am_net_kernel,
+                                      ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS,
+                                      0);
+    if (!net_kernel || ERTS_PROC_GET_DIST_ENTRY(net_kernel))
 	goto error;
 
     /* By setting F_DISTRIBUTION on net_kernel,
-     * do_net_exist will be called when net_kernel is terminated !! */
+     * erts_do_net_exits will be called when net_kernel is terminated !! */
     net_kernel->flags |= F_DISTRIBUTION;
 
-    if (net_kernel != BIF_P)
-	erts_proc_unlock(net_kernel, ERTS_PROC_LOCK_MAIN);
+    erts_proc_unlock(net_kernel,
+                     (ERTS_PROC_LOCK_STATUS
+                      | ((net_kernel != BIF_P)
+                         ? ERTS_PROC_LOCK_MAIN
+                         : 0)));
 
 #ifdef DEBUG
     erts_rwmtx_rlock(&erts_dist_table_rwmtx);
@@ -2662,6 +3178,14 @@ BIF_RETTYPE setnode_2(BIF_ALIST_2)
     erts_thr_progress_unblock();
     erts_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
 
+    /*
+     * Note erts_this_dist_entry is changed by erts_set_this_node(),
+     * so we *need* to use the new one after erts_set_this_node()
+     * is called.
+     */
+    erts_ref_dist_entry(erts_this_dist_entry);
+    ERTS_PROC_SET_DIST_ENTRY(net_kernel, erts_this_dist_entry);
+
     BIF_RET(am_true);
 
  error:
@@ -2691,18 +3215,18 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3)
     Eterm ic, oc;
     Eterm *tp;
     DistEntry *dep = NULL;
+    ErtsProcLocks proc_unlock = 0;
+    Process *proc;
     Port *pp = NULL;
 
-    /* Prepare for success */
-    ERTS_BIF_PREP_RET(ret, am_true);
-
     /*
      * Check and pick out arguments
      */
 
     if (!is_node_name_atom(BIF_ARG_1) ||
-	is_not_internal_port(BIF_ARG_2) ||
-	(erts_this_node->sysname == am_Noname)) {
+	!(is_internal_port(BIF_ARG_2)
+          || is_internal_pid(BIF_ARG_2))
+	|| (erts_this_node->sysname == am_Noname)) {
 	goto badarg;
     }
 
@@ -2746,77 +3270,124 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3)
     else if (!dep)
 	goto system_limit; /* Should never happen!!! */
 
-    pp = erts_id2port_sflgs(BIF_ARG_2,
-			    BIF_P,
-			    ERTS_PROC_LOCK_MAIN,
-			    ERTS_PORT_SFLGS_INVALID_LOOKUP);
-    erts_de_rwlock(dep);
+    if (is_internal_pid(BIF_ARG_2)) {
+        if (BIF_P->common.id == BIF_ARG_2) {
+            proc_unlock = 0;
+            proc = BIF_P;
+        }
+        else {
+            proc_unlock = ERTS_PROC_LOCK_MAIN;
+            proc = erts_pid2proc_not_running(BIF_P, ERTS_PROC_LOCK_MAIN,
+                                             BIF_ARG_2, proc_unlock);
+        }
+        erts_de_rwlock(dep);
 
-    if (!pp || (erts_atomic32_read_nob(&pp->state)
-		& ERTS_PORT_SFLG_EXITING))
-	goto badarg;
+        if (!proc)
+            goto badarg;
+        else if (proc == ERTS_PROC_LOCK_BUSY) {
+            proc_unlock = 0;
+            goto yield;
+        }
 
-    if ((pp->drv_ptr->flags & ERL_DRV_FLAG_SOFT_BUSY) == 0)
-	goto badarg;
+        erts_proc_lock(proc, ERTS_PROC_LOCK_STATUS);
+        proc_unlock |= ERTS_PROC_LOCK_STATUS;
+
+        if (ERTS_PROC_GET_DIST_ENTRY(proc)) {
+            if (dep == ERTS_PROC_GET_DIST_ENTRY(proc)
+                && (proc->flags & F_DISTRIBUTION)
+                && dep->cid == BIF_ARG_2) {
+                ERTS_BIF_PREP_RET(ret, erts_make_dhandle(BIF_P, dep));
+                goto done;
+            }
+            goto badarg;
+        }
 
-    if (dep->cid == BIF_ARG_2 && pp->dist_entry == dep)
-	goto done; /* Already set */
+        if (is_not_nil(dep->cid))
+            goto badarg;
+
+        proc->flags |= F_DISTRIBUTION;
+        ERTS_PROC_SET_DIST_ENTRY(proc, dep);
+
+        proc_unlock &= ~ERTS_PROC_LOCK_STATUS;
+        erts_proc_unlock(proc, ERTS_PROC_LOCK_STATUS);
+
+        dep->send = NULL; /* Only for distr ports... */
 
-    if (dep->status & ERTS_DE_SFLG_EXITING) {
-	/* Suspend on dist entry waiting for the exit to finish */
-	ErtsProcList *plp = erts_proclist_create(BIF_P);
-	plp->next = NULL;
-	erts_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, NULL);
-	erts_mtx_lock(&dep->qlock);
-	erts_proclist_store_last(&dep->suspended, plp);
-	erts_mtx_unlock(&dep->qlock);
-	goto yield;
     }
+    else {
 
-    ASSERT(!(dep->status & ERTS_DE_SFLG_EXITING));
+        pp = erts_id2port_sflgs(BIF_ARG_2,
+                                BIF_P,
+                                ERTS_PROC_LOCK_MAIN,
+                                ERTS_PORT_SFLGS_INVALID_LOOKUP);
+        erts_de_rwlock(dep);
 
-    if (pp->dist_entry || is_not_nil(dep->cid))
-	goto badarg;
+        if (!pp || (erts_atomic32_read_nob(&pp->state)
+                    & ERTS_PORT_SFLG_EXITING))
+            goto badarg;
 
-    erts_atomic32_read_bor_nob(&pp->state, ERTS_PORT_SFLG_DISTRIBUTION);
+        if ((pp->drv_ptr->flags & ERL_DRV_FLAG_SOFT_BUSY) == 0)
+            goto badarg;
 
-    /*
-     * Dist-ports do not use the "busy port message queue" functionality, but
-     * instead use "busy dist entry" functionality.
-     */
-    {
-	ErlDrvSizeT disable = ERL_DRV_BUSY_MSGQ_DISABLED;
-	erl_drv_busy_msgq_limits(ERTS_Port2ErlDrvPort(pp), &disable, NULL);
-    }
+        if (dep->cid == BIF_ARG_2 && pp->dist_entry == dep) {
+            ERTS_BIF_PREP_RET(ret, erts_make_dhandle(BIF_P, dep));
+            goto done; /* Already set */
+        }
 
-    pp->dist_entry = dep;
+        if (dep->status & ERTS_DE_SFLG_EXITING) {
+            /* Suspend on dist entry waiting for the exit to finish */
+            ErtsProcList *plp = erts_proclist_create(BIF_P);
+            plp->next = NULL;
+            erts_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, NULL);
+            erts_mtx_lock(&dep->qlock);
+            erts_proclist_store_last(&dep->suspended, plp);
+            erts_mtx_unlock(&dep->qlock);
+            goto yield;
+        }
 
-    dep->version = version;
-    dep->creation = 0;
+        ASSERT(!(dep->status & ERTS_DE_SFLG_EXITING));
 
-    ASSERT(pp->drv_ptr->outputv || pp->drv_ptr->output);
+        if (pp->dist_entry || is_not_nil(dep->cid))
+            goto badarg;
 
-#if 1
-    dep->send = (pp->drv_ptr->outputv
-		 ? dist_port_commandv
-		 : dist_port_command);
-#else
-    dep->send = dist_port_command;
-#endif
-    ASSERT(dep->send);
+        erts_atomic32_read_bor_nob(&pp->state, ERTS_PORT_SFLG_DISTRIBUTION);
+
+        pp->dist_entry = dep;
+
+        ASSERT(pp->drv_ptr->outputv || pp->drv_ptr->output);
+
+        dep->send = (pp->drv_ptr->outputv
+                     ? dist_port_commandv
+                     : dist_port_command);
+        ASSERT(dep->send);
+
+        /*
+         * Dist-ports do not use the "busy port message queue" functionality, but
+         * instead use "busy dist entry" functionality.
+         */
+        {
+            ErlDrvSizeT disable = ERL_DRV_BUSY_MSGQ_DISABLED;
+            erl_drv_busy_msgq_limits(ERTS_Port2ErlDrvPort(pp), &disable, NULL);
+        }
+
+    }
+
+    dep->version = version;
+    dep->creation = 0;
 
 #ifdef DEBUG
-    erts_mtx_lock(&dep->qlock);
-    ASSERT(dep->qsize == 0);
-    erts_mtx_unlock(&dep->qlock);
+    ASSERT(erts_atomic_read_nob(&dep->qsize) == 0);
 #endif
 
-    erts_set_dist_entry_connected(dep, BIF_ARG_2, flags);
-
     if (flags & DFLAG_DIST_HDR_ATOM_CACHE)
 	create_cache(dep);
 
+    erts_set_dist_entry_connected(dep, BIF_ARG_2, flags);
+
     erts_de_rwunlock(dep);
+
+    ERTS_BIF_PREP_RET(ret, erts_make_dhandle(BIF_P, dep));
+
     dep = NULL; /* inc of refc transferred to port (dist_entry field) */
 
     inc_no_nodes();
@@ -2836,6 +3407,9 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3)
     if (pp)
 	erts_port_release(pp);
 
+    if (proc_unlock)
+        erts_proc_unlock(proc, proc_unlock);
+
     return ret;
 
  yield:
@@ -3138,7 +3712,6 @@ monitor_node(Process* p, Eterm Node, Eterm Bool, Eterm Options)
     erts_proc_unlock(p, ERTS_PROC_LOCK_LINK);
 
  done:
-    erts_deref_dist_entry(dep);
     BIF_RET(am_true);
 }
 
diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h
index 05016cafc5..d4765c50b8 100644
--- a/erts/emulator/beam/dist.h
+++ b/erts/emulator/beam/dist.h
@@ -44,6 +44,7 @@
 #define DFLAG_UTF8_ATOMS          0x10000
 #define DFLAG_MAP_TAG             0x20000
 #define DFLAG_BIG_CREATION        0x40000
+#define DFLAG_SEND_SENDER         0x80000
 
 /* All flags that should be enabled when term_to_binary/1 is used. */
 #define TERM_TO_BINARY_DFLAGS (DFLAG_EXTENDED_REFERENCES	\
@@ -74,6 +75,9 @@
 #define DOP_DEMONITOR_P		20
 #define DOP_MONITOR_P_EXIT	21
 
+#define DOP_SEND_SENDER         22
+#define DOP_SEND_SENDER_TT      23
+
 /* distribution trap functions */
 extern Export* dsend2_trap;
 extern Export* dsend3_trap;
@@ -161,13 +165,10 @@ erts_dsig_prepare(ErtsDSigData *dsdp,
 	goto fail;
     }
     if (no_suspend) {
-	failure = ERTS_DSIG_PREP_CONNECTED;
-	erts_mtx_lock(&dep->qlock);
-	if (dep->qflgs & ERTS_DE_QFLG_BUSY)
+        if (erts_atomic32_read_acqb(&dep->qflgs) & ERTS_DE_QFLG_BUSY) {
 	    failure = ERTS_DSIG_PREP_WOULD_SUSPEND;
-	erts_mtx_unlock(&dep->qlock);
-	if (failure == ERTS_DSIG_PREP_WOULD_SUSPEND)
 	    goto fail;
+        }
     }
     dsdp->proc = proc;
     dsdp->dep = dep;
@@ -349,6 +350,7 @@ typedef struct {
     Eterm ctl_heap[6];
     ErtsDSigData dsd;
     DistEntry* dep_to_deref;
+    DistEntry *dep;
     struct erts_dsig_send_context dss;
 
     Eterm return_term;
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index aee54ad0a8..88285d8be6 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -385,6 +385,7 @@ set_default_temp_alloc_opts(struct au_init *ip)
     SET_DEFAULT_ALLOC_OPTS(ip);
     ip->enable			= AU_ALLOC_DEFAULT_ENABLE(1);
     ip->thr_spec		= 1;
+    ip->disable_allowed         = 0;
     ip->carrier_migration_allowed = 0;
     ip->atype			= AFIT;
     ip->init.util.name_prefix	= "temp_";
@@ -644,8 +645,6 @@ erts_alloc_init(int *argc, char **argv, ErtsAllocInitOpts *eaiop)
 	= ERTS_MONITOR_SH_SIZE * sizeof(Uint);
     fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_NLINK_SH)]
 	= ERTS_LINK_SH_SIZE * sizeof(Uint);
-    fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_DRV_EV_D_STATE)]
-	= sizeof(ErtsDrvEventDataState);
     fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_DRV_SEL_D_STATE)]
 	= sizeof(ErtsDrvSelectDataState);
     fix_type_sizes[ERTS_ALC_FIX_TYPE_IX(ERTS_ALC_T_NIF_SEL_D_STATE)]
@@ -1494,8 +1493,7 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init)
 	&init->ll_alloc,
 	&init->driver_alloc,
 	&init->fix_alloc,
-	&init->sl_alloc,
-	&init->temp_alloc
+	&init->sl_alloc
 	/* test_alloc not affected by +Mea??? or +Mu???  */
     };
     int aui_sz = (int) sizeof(aui)/sizeof(aui[0]);
@@ -1841,9 +1839,7 @@ erts_alloc_register_scheduler(void *vesdp)
     int ix = (int) esdp->no;
     int aix;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     ASSERT(!ERTS_SCHEDULER_IS_DIRTY(esdp));
-#endif
     for (aix = ERTS_ALC_A_MIN; aix <= ERTS_ALC_A_MAX; aix++) {
 	ErtsAllocatorThrSpec_t *tspec = &erts_allctr_thr_spec[aix];
 	esdp->alloc_data.deallctr[aix] = NULL;
diff --git a/erts/emulator/beam/erl_alloc.h b/erts/emulator/beam/erl_alloc.h
index c661d0b226..117f96a4ad 100644
--- a/erts/emulator/beam/erl_alloc.h
+++ b/erts/emulator/beam/erl_alloc.h
@@ -402,6 +402,32 @@ NAME##_free(TYPE *p)							\
 	erts_free(ALCT, (void *) p);					\
 }
 
+#define ERTS_THR_PREF_AUX(NAME, TYPE, PASZ)				\
+ERTS_THR_PREF_PRE_ALLOC_IMPL(NAME##_pre, TYPE, PASZ)
+
+#define ERTS_THR_PREF_QUICK_ALLOC_IMPL(NAME, TYPE, PASZ, ALCT)	        \
+ERTS_THR_PREF_AUX(NAME, TYPE, PASZ)					\
+static void								\
+init_##NAME##_alloc(int nthreads)					\
+{									\
+    init_##NAME##_pre_alloc(nthreads);			                \
+}									\
+static ERTS_INLINE TYPE *						\
+NAME##_alloc(void)							\
+{									\
+    TYPE *res = NAME##_pre_alloc();					\
+    if (!res)								\
+	res = erts_alloc(ALCT, sizeof(TYPE));				\
+    return res;								\
+}									\
+static ERTS_INLINE void							\
+NAME##_free(TYPE *p)							\
+{									\
+    if (!NAME##_pre_free(p))						\
+	erts_free(ALCT, (void *) p);					\
+}
+
+
 #ifdef DEBUG
 #define ERTS_PRE_ALLOC_SIZE(SZ) ((SZ) < 1000 ? (SZ)/10 + 10 : 100)
 #define ERTS_PRE_ALLOC_CLOBBER(P, T) memset((void *) (P), 0xfd, sizeof(T))
@@ -482,7 +508,8 @@ init_##NAME##_alloc(void)						\
 {									\
     sspa_data_##NAME##__ =						\
 	erts_sspa_create(sizeof(union erts_sspa_##NAME##__),		\
-			 ERTS_PRE_ALLOC_SIZE((PASZ)));			\
+			 ERTS_PRE_ALLOC_SIZE((PASZ)), 			\
+                         0, NULL);                                      \
 }									\
 									\
 static TYPE *								\
@@ -504,6 +531,57 @@ NAME##_free(TYPE *p)							\
 			  (char *) p);					\
 }
 
+
+#define ERTS_THR_PREF_PRE_ALLOC_IMPL(NAME, TYPE, PASZ)		        \
+union erts_sspa_##NAME##__ {						\
+    erts_sspa_blk_t next;						\
+    TYPE type;								\
+};									\
+									\
+static erts_sspa_data_t *sspa_data_##NAME##__;				\
+									\
+static void								\
+init_##NAME##_alloc(int nthreads)					\
+{									\
+    sspa_data_##NAME##__ =						\
+	erts_sspa_create(sizeof(union erts_sspa_##NAME##__),		\
+			 ERTS_PRE_ALLOC_SIZE((PASZ)),			\
+                         nthreads,                                      \
+                         #NAME);                                        \
+}									\
+                                                                        \
+void								        \
+erts_##NAME##_alloc_init_thread(void)				        \
+{									\
+    int id = erts_atomic_inc_read_nob(&sspa_data_##NAME##__->id_generator);\
+    if (id > sspa_data_##NAME##__->nthreads) {                          \
+        erts_exit(ERTS_ABORT_EXIT,                                      \
+                  "%s:%d:%s(): Too many threads for '" #NAME "'\n",     \
+                  __FILE__, __LINE__, __func__);                        \
+    }                                                                   \
+    erts_tsd_set(sspa_data_##NAME##__->tsd_key, (void*)(SWord)id);      \
+}									\
+									\
+static TYPE *								\
+NAME##_alloc(void)							\
+{									\
+    int id = (int)(SWord)erts_tsd_get(sspa_data_##NAME##__->tsd_key);   \
+    if (id == 0)                                                        \
+        return NULL;                                                    \
+    return (TYPE *) erts_sspa_alloc(sspa_data_##NAME##__,		\
+                                    id-1);		                \
+}									\
+									\
+static int								\
+NAME##_free(TYPE *p)							\
+{									\
+    int id = (int)(SWord)erts_tsd_get(sspa_data_##NAME##__->tsd_key);   \
+    return erts_sspa_free(sspa_data_##NAME##__,				\
+			  id - 1,		                        \
+			  (char *) p);					\
+}
+
+
 #ifdef DEBUG
 #define ERTS_ALC_DBG_BLK_SZ(PTR) (*(((UWord *) (PTR)) - 2))
 #endif /* #ifdef DEBUG */
diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types
index 8142ea8893..2960272eab 100644
--- a/erts/emulator/beam/erl_alloc.types
+++ b/erts/emulator/beam/erl_alloc.types
@@ -258,6 +258,9 @@ type    MREF_ENT	STANDARD	SYSTEM		magic_ref_entry
 type	MREF_TAB_BKTS	STANDARD	SYSTEM		magic_ref_table_buckets
 type	MREF_TAB	LONG_LIVED	SYSTEM		magic_ref_table
 type	MINDIRECTION	FIXED_SIZE	SYSTEM		magic_indirection
+type	BINARY_FIND	SHORT_LIVED	PROCESSES	binary_find
+type  	OPEN_PORT_ENV 	TEMPORARY	SYSTEM		open_port_env
+type	CRASH_DUMP	STANDARD	SYSTEM		crash_dump
 
 type	THR_Q_EL	STANDARD   	SYSTEM		thr_q_element
 type	THR_Q_EL_SL	FIXED_SIZE	SYSTEM		sl_thr_q_element
@@ -350,11 +353,9 @@ type	SYS_CHECK_REQ	SHORT_LIVED	SYSTEM		system_check_request
 type  	TEMP_TERM 	TEMPORARY	SYSTEM		temp_term
 type	DRV_TAB		LONG_LIVED	SYSTEM		drv_tab
 type	DRV_EV_STATE	LONG_LIVED	SYSTEM		driver_event_state
-type	DRV_EV_D_STATE	FIXED_SIZE	SYSTEM		driver_event_data_state
 type	DRV_SEL_D_STATE	FIXED_SIZE	SYSTEM		driver_select_data_state
 type	NIF_SEL_D_STATE	FIXED_SIZE	SYSTEM		enif_select_data_state
 type	FD_LIST		SHORT_LIVED	SYSTEM		fd_list
-type	ACTIVE_FD_ARR	SHORT_LIVED	SYSTEM		active_fd_array
 type	POLLSET		LONG_LIVED	SYSTEM		pollset
 type	POLLSET_UPDREQ	SHORT_LIVED	SYSTEM		pollset_update_req
 type	POLL_FDS	LONG_LIVED	SYSTEM		poll_fds
diff --git a/erts/emulator/beam/erl_alloc_util.h b/erts/emulator/beam/erl_alloc_util.h
index 30d7baf769..faeb5ef368 100644
--- a/erts/emulator/beam/erl_alloc_util.h
+++ b/erts/emulator/beam/erl_alloc_util.h
@@ -230,10 +230,6 @@ void erts_lcnt_update_allocator_locks(int enable);
 #  endif
 #endif
 
-#undef MIN
-#undef MAX
-#define MIN(X, Y) ((X) < (Y) ? (X) : (Y))
-#define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
 #define FLOOR(X, I) (((X)/(I))*(I))
 #define CEILING(X, I)  ((((X) - 1)/(I) + 1)*(I))
 
diff --git a/erts/emulator/beam/erl_arith.c b/erts/emulator/beam/erl_arith.c
index f2a3e411ec..b6625db0d3 100644
--- a/erts/emulator/beam/erl_arith.c
+++ b/erts/emulator/beam/erl_arith.c
@@ -114,7 +114,7 @@ BIF_RETTYPE intdiv_2(BIF_ALIST_2)
     }
     if (is_both_small(BIF_ARG_1,BIF_ARG_2)){
 	Sint ires = signed_val(BIF_ARG_1) / signed_val(BIF_ARG_2);
-	if (MY_IS_SSMALL(ires))
+	if (IS_SSMALL(ires))
 	    BIF_RET(make_small(ires));
     } 
     BIF_RET(erts_int_div(BIF_P, BIF_ARG_1, BIF_ARG_2));
@@ -340,8 +340,7 @@ erts_mixed_plus(Process* p, Eterm arg1, Eterm arg2)
 		switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) {
 		case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE):
 		    ires = signed_val(arg1) + signed_val(arg2);
-		    ASSERT(MY_IS_SSMALL(ires) == IS_SSMALL(ires));
-		    if (MY_IS_SSMALL(ires)) {
+		    if (IS_SSMALL(ires)) {
 			return make_small(ires);
 		    } else {
 			hp = HAlloc(p, 2);
@@ -486,8 +485,7 @@ erts_mixed_minus(Process* p, Eterm arg1, Eterm arg2)
 		switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) {
 		case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE):
 		    ires = signed_val(arg1) - signed_val(arg2);
-		    ASSERT(MY_IS_SSMALL(ires) == IS_SSMALL(ires));
-		    if (MY_IS_SSMALL(ires)) {
+		    if (IS_SSMALL(ires)) {
 			return make_small(ires);
 		    } else {
 			hp = HAlloc(p, 2);
@@ -1181,8 +1179,7 @@ erts_gc_mixed_plus(Process* p, Eterm* reg, Uint live)
 		switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) {
 		case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE):
 		    ires = signed_val(arg1) + signed_val(arg2);
-		    ASSERT(MY_IS_SSMALL(ires) == IS_SSMALL(ires));
-		    if (MY_IS_SSMALL(ires)) {
+		    if (IS_SSMALL(ires)) {
 			return make_small(ires);
 		    } else {
 			if (ERTS_NEED_GC(p, 2)) {
@@ -1349,8 +1346,7 @@ erts_gc_mixed_minus(Process* p, Eterm* reg, Uint live)
 		switch ((arg2 & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) {
 		case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE):
 		    ires = signed_val(arg1) - signed_val(arg2);
-		    ASSERT(MY_IS_SSMALL(ires) == IS_SSMALL(ires));
-		    if (MY_IS_SSMALL(ires)) {
+		    if (IS_SSMALL(ires)) {
 			return make_small(ires);
 		    } else {
 			if (ERTS_NEED_GC(p, 2)) {
diff --git a/erts/emulator/beam/erl_bif_binary.c b/erts/emulator/beam/erl_bif_binary.c
index 756c7dce05..4cafa499a9 100644
--- a/erts/emulator/beam/erl_bif_binary.c
+++ b/erts/emulator/beam/erl_bif_binary.c
@@ -171,6 +171,16 @@ static void *my_alloc(MyAllocator *my, Uint size)
 
 #define ALPHABET_SIZE 256
 
+typedef struct _findall_data {
+    Uint pos;
+    Uint len;
+#ifdef HARDDEBUG
+    Uint id;
+#endif
+    Eterm epos;
+    Eterm elen;
+} FindallData;
+
 typedef struct _ac_node {
 #ifdef HARDDEBUG
     Uint32 id;                        /* To identify h pointer targets when
@@ -208,6 +218,103 @@ typedef struct _bm_data {
     Sint badshift[ALPHABET_SIZE];
 } BMData;
 
+typedef struct _ac_find_all_state {
+    ACNode *q;
+    Uint pos;
+    Uint len;
+    Uint m;
+    Uint allocated;
+    FindallData *out;
+} ACFindAllState;
+
+typedef struct _ac_find_first_state {
+    ACNode *q;
+    Uint pos;
+    Uint len;
+    ACNode *candidate;
+    Uint candidate_start;
+} ACFindFirstState;
+
+typedef struct _bm_find_all_state {
+    Sint pos;
+    Sint len;
+    Uint m;
+    Uint allocated;
+    FindallData *out;
+} BMFindAllState;
+
+typedef struct _bm_find_first_state {
+    Sint pos;
+    Sint len;
+} BMFindFirstState;
+
+typedef enum _bf_return {
+    BF_RESTART = -3,
+    BF_NOT_FOUND,
+    BF_BADARG,
+    BF_OK
+} BFReturn;
+
+typedef struct _binary_find_all_context {
+    ErtsHeapFactory factory;
+    Eterm term;
+    Sint head;
+    Sint tail;
+    Uint end_pos;
+    Uint size;
+    FindallData *data;
+    union {
+	ACFindAllState ac;
+	BMFindAllState bm;
+    } d;
+} BinaryFindAllContext;
+
+typedef struct _binary_find_first_context {
+    Uint pos;
+    Uint len;
+    union {
+	ACFindFirstState ac;
+	BMFindFirstState bm;
+    } d;
+} BinaryFindFirstContext;
+
+typedef struct _binary_find_context BinaryFindContext;
+
+typedef struct _binary_find_search {
+    void (*init) (BinaryFindContext *);
+    BFReturn (*find) (BinaryFindContext *, byte *);
+    void (*done) (BinaryFindContext *);
+} BinaryFindSearch;
+
+typedef Eterm (*BinaryFindResult)(Process *, Eterm, BinaryFindContext **);
+
+typedef enum _binary_find_state {
+    BFSearch,
+    BFResult,
+    BFDone
+} BinaryFindState;
+
+struct _binary_find_context {
+    Eterm pat_type;
+    Eterm pat_term;
+    Binary *pat_bin;
+    Uint flags;
+    Uint hsstart;
+    Uint hsend;
+    int loop_factor;
+    int exported;
+    Uint reds;
+    BinaryFindState state;
+    Eterm trap_term;
+    BinaryFindSearch *search;
+    BinaryFindResult not_found;
+    BinaryFindResult found;
+    union {
+	BinaryFindAllContext fa;
+	BinaryFindFirstContext ff;
+    } u;
+};
+
 #ifdef HARDDEBUG
 static void dump_bm_data(BMData *bm);
 static void dump_ac_trie(ACTrie *act);
@@ -229,13 +336,6 @@ static void dump_ac_node(ACNode *node, int indent, int ch);
  MYALIGN(sizeof(ACTrie)))      /* Structure */
 
 
-#ifndef MAX
-#define MAX(A,B) (((A) > (B)) ? (A) : (B))
-#endif
-
-#ifndef MIN
-#define MIN(A,B) (((A) > (B)) ? (B) : (A))
-#endif
 /*
  * Callback for the magic binary
  */
@@ -421,32 +521,25 @@ static void ac_compute_failure_functions(ACTrie *act, ACNode **qbuff)
  * Basic AC finds the first end before the first start...
  *
  */
-typedef struct {
-    ACNode *q;
-    Uint pos;
-    Uint len;
-    ACNode *candidate;
-    Uint candidate_start;
-} ACFindFirstState;
-
-
-static void ac_init_find_first_match(ACFindFirstState *state, ACTrie *act, Sint startpos, Uint len)
+static void ac_init_find_first_match(BinaryFindContext *ctx)
 {
+    ACFindFirstState *state = &(ctx->u.ff.d.ac);
+    ACTrie *act = ERTS_MAGIC_BIN_DATA(ctx->pat_bin);
     state->q = act->root;
-    state->pos = startpos;
-    state->len = len;
+    state->pos = ctx->hsstart;
+    state->len = ctx->hsend;
     state->candidate = NULL;
     state->candidate_start = 0;
 }
-#define AC_OK 0
-#define AC_NOT_FOUND -1
-#define AC_RESTART -2
 
 #define AC_LOOP_FACTOR 10
 
-static int ac_find_first_match(ACFindFirstState *state, byte *haystack,
-				Uint *mpos, Uint *mlen, Uint *reductions)
+static BFReturn ac_find_first_match(BinaryFindContext *ctx, byte *haystack)
 {
+    ACFindFirstState *state = &(ctx->u.ff.d.ac);
+    Uint *mpos = &(ctx->u.ff.pos);
+    Uint *mlen = &(ctx->u.ff.len);
+    Uint *reductions = &(ctx->reds);
     ACNode *q = state->q;
     Uint i = state->pos;
     ACNode *candidate = state->candidate, *r;
@@ -462,7 +555,7 @@ static int ac_find_first_match(ACFindFirstState *state, byte *haystack,
 	    state->len = len;
 	    state->candidate = candidate;
 	    state->candidate_start = candidate_start;
-	    return AC_RESTART;
+	    return BF_RESTART;
 	}
 
 	while (q->g[haystack[i]] == NULL && q->h != q) {
@@ -492,68 +585,33 @@ static int ac_find_first_match(ACFindFirstState *state, byte *haystack,
     }
     *reductions = reds;
     if (!candidate) {
-	return AC_NOT_FOUND;
+	return BF_NOT_FOUND;
     }
 #ifdef HARDDEBUG
     dump_ac_node(candidate,0,'?');
 #endif
     *mpos = candidate_start;
     *mlen = candidate->d;
-    return AC_OK;
+    return BF_OK;
 }
 
-typedef struct _findall_data {
-    Uint pos;
-    Uint len;
-#ifdef HARDDEBUG
-    Uint id;
-#endif
-    Eterm epos;
-    Eterm elen;
-} FindallData;
-
-typedef struct {
-    ACNode *q;
-    Uint pos;
-    Uint len;
-    Uint m;
-    Uint allocated;
-    FindallData *out;
-} ACFindAllState;
-
-static void ac_init_find_all(ACFindAllState *state, ACTrie *act, Sint startpos, Uint len)
+static void ac_init_find_all(BinaryFindContext *ctx)
 {
+    ACFindAllState *state = &(ctx->u.fa.d.ac);
+    ACTrie *act = ERTS_MAGIC_BIN_DATA(ctx->pat_bin);
     state->q = act->root;
-    state->pos = startpos;
-    state->len = len;
+    state->pos = ctx->hsstart;
+    state->len = ctx->hsend;
     state->m = 0;
     state->allocated = 0;
     state->out = NULL;
 }
 
-static void ac_restore_find_all(ACFindAllState *state,
-                                const ACFindAllState *src)
-{
-    memcpy(state, src, sizeof(ACFindAllState));
-    if (state->allocated > 0) {
-	state->out = erts_alloc(ERTS_ALC_T_TMP, sizeof(FindallData) * (state->allocated));
-	memcpy(state->out, src+1, sizeof(FindallData)*state->m);
-    } else {
-	state->out = NULL;
-    }
-}
-
-static void ac_serialize_find_all(const ACFindAllState *state,
-                                  ACFindAllState *dst)
-{
-    memcpy(dst, state, sizeof(ACFindAllState));
-    memcpy(dst+1, state->out, sizeof(FindallData)*state->m);
-}
-
-static void ac_clean_find_all(ACFindAllState *state)
+static void ac_clean_find_all(BinaryFindContext *ctx)
 {
+    ACFindAllState *state = &(ctx->u.fa.d.ac);
     if (state->out != NULL) {
-	erts_free(ERTS_ALC_T_TMP, state->out);
+	erts_free(ERTS_ALC_T_BINARY_FIND, state->out);
     }
 #ifdef HARDDEBUG
     state->out = NULL;
@@ -565,9 +623,10 @@ static void ac_clean_find_all(ACFindAllState *state)
  * Differs to the find_first function in that it stores all matches and the values
  * arte returned only in the state.
  */
-static int ac_find_all_non_overlapping(ACFindAllState *state, byte *haystack,
-				       Uint *reductions)
+static BFReturn ac_find_all_non_overlapping(BinaryFindContext *ctx, byte *haystack)
 {
+    ACFindAllState *state = &(ctx->u.fa.d.ac);
+    Uint *reductions = &(ctx->reds);
     ACNode *q = state->q;
     Uint i = state->pos;
     Uint rstart;
@@ -578,7 +637,6 @@ static int ac_find_all_non_overlapping(ACFindAllState *state, byte *haystack,
     FindallData *out = state->out;
     register Uint reds = *reductions;
 
-
     while (i < len) {
 	if (--reds == 0) {
 	    state->q = q;
@@ -587,7 +645,7 @@ static int ac_find_all_non_overlapping(ACFindAllState *state, byte *haystack,
 	    state->m = m;
 	    state->allocated = allocated;
 	    state->out = out;
-	    return AC_RESTART;
+	    return BF_RESTART;
 	}
 	while (q->g[haystack[i]] == NULL && q->h != q) {
 	    q = q->h;
@@ -625,11 +683,11 @@ static int ac_find_all_non_overlapping(ACFindAllState *state, byte *haystack,
 		    if (m >= allocated) {
 			if (!allocated) {
 			    allocated = 10;
-			    out = erts_alloc(ERTS_ALC_T_TMP,
+			    out = erts_alloc(ERTS_ALC_T_BINARY_FIND,
 					     sizeof(FindallData) * allocated);
 			} else {
 			    allocated *= 2;
-			    out = erts_realloc(ERTS_ALC_T_TMP, out,
+			    out = erts_realloc(ERTS_ALC_T_BINARY_FIND, out,
 					       sizeof(FindallData) *
 					       allocated);
 			}
@@ -656,7 +714,7 @@ static int ac_find_all_non_overlapping(ACFindAllState *state, byte *haystack,
     *reductions = reds;
     state->m = m;
     state->out = out;
-    return (m == 0) ? AC_NOT_FOUND : AC_OK;
+    return (m == 0) ? BF_NOT_FOUND : BF_OK;
 }
 
 /*
@@ -743,27 +801,22 @@ static void compute_goodshifts(BMData *bmd)
     erts_free(ERTS_ALC_T_TMP, suffixes);
 }
 
-typedef struct {
-    Sint pos;
-    Sint len;
-} BMFindFirstState;
-
-#define BM_OK 0 /* used only for find_all */
-#define BM_NOT_FOUND -1
-#define BM_RESTART -2
 #define BM_LOOP_FACTOR 10 /* Should we have a higher value? */
 
-static void bm_init_find_first_match(BMFindFirstState *state, Sint startpos,
-				     Uint len)
+static void bm_init_find_first_match(BinaryFindContext *ctx)
 {
-    state->pos = startpos;
-    state->len = (Sint) len;
+    BMFindFirstState *state = &(ctx->u.ff.d.bm);
+    state->pos = ctx->hsstart;
+    state->len = ctx->hsend;
 }
 
-
-static Sint bm_find_first_match(BMFindFirstState *state, BMData *bmd,
-				byte *haystack, Uint *reductions)
+static BFReturn bm_find_first_match(BinaryFindContext *ctx, byte *haystack)
 {
+    BMFindFirstState *state = &(ctx->u.ff.d.bm);
+    BMData *bmd = ERTS_MAGIC_BIN_DATA(ctx->pat_bin);
+    Uint *mpos = &(ctx->u.ff.pos);
+    Uint *mlen = &(ctx->u.ff.len);
+    Uint *reductions = &(ctx->reds);
     Sint blen = bmd->len;
     Sint len = state->len;
     Sint *gs = bmd->goodshift;
@@ -776,61 +829,37 @@ static Sint bm_find_first_match(BMFindFirstState *state, BMData *bmd,
     while (j <= len - blen) {
 	if (--reds == 0) {
 	    state->pos = j;
-	    return BM_RESTART;
+	    return BF_RESTART;
 	}
 	for (i = blen - 1; i >= 0 && needle[i] == haystack[i + j]; --i)
 	    ;
 	if (i < 0) { /* found */
 	    *reductions = reds;
-	    return j;
+	    *mpos = (Uint) j;
+	    *mlen = (Uint) blen;
+	    return BF_OK;
 	}
 	j += MAX(gs[i],bs[haystack[i+j]] - blen + 1 + i);
     }
     *reductions = reds;
-    return BM_NOT_FOUND;
+    return BF_NOT_FOUND;
 }
 
-typedef struct {
-    Sint pos;
-    Sint len;
-    Uint m;
-    Uint allocated;
-    FindallData *out;
-} BMFindAllState;
-
-static void bm_init_find_all(BMFindAllState *state, Sint startpos, Uint len)
+static void bm_init_find_all(BinaryFindContext *ctx)
 {
-    state->pos = startpos;
-    state->len = (Sint) len;
+    BMFindAllState *state = &(ctx->u.fa.d.bm);
+    state->pos = ctx->hsstart;
+    state->len = ctx->hsend;
     state->m = 0;
     state->allocated = 0;
     state->out = NULL;
 }
 
-static void bm_restore_find_all(BMFindAllState *state,
-                                const BMFindAllState *src)
-{
-    memcpy(state, src, sizeof(BMFindAllState));
-    if (state->allocated > 0) {
-	state->out = erts_alloc(ERTS_ALC_T_TMP, sizeof(FindallData) *
-				(state->allocated));
-	memcpy(state->out, src+1, sizeof(FindallData)*state->m);
-    } else {
-	state->out = NULL;
-    }
-}
-
-static void bm_serialize_find_all(const BMFindAllState *state,
-                                  BMFindAllState *dst)
-{
-    memcpy(dst, state, sizeof(BMFindAllState));
-    memcpy(dst+1, state->out, sizeof(FindallData)*state->m);
-}
-
-static void bm_clean_find_all(BMFindAllState *state)
+static void bm_clean_find_all(BinaryFindContext *ctx)
 {
+    BMFindAllState *state = &(ctx->u.fa.d.bm);
     if (state->out != NULL) {
-	erts_free(ERTS_ALC_T_TMP, state->out);
+	erts_free(ERTS_ALC_T_BINARY_FIND, state->out);
     }
 #ifdef HARDDEBUG
     state->out = NULL;
@@ -842,10 +871,11 @@ static void bm_clean_find_all(BMFindAllState *state)
  * Differs to the find_first function in that it stores all matches and the
  * values are returned only in the state.
  */
-static Sint bm_find_all_non_overlapping(BMFindAllState *state,
-					BMData *bmd, byte *haystack,
-					Uint *reductions)
+static BFReturn bm_find_all_non_overlapping(BinaryFindContext *ctx, byte *haystack)
 {
+    BMFindAllState *state = &(ctx->u.fa.d.bm);
+    BMData *bmd = ERTS_MAGIC_BIN_DATA(ctx->pat_bin);
+    Uint *reductions = &(ctx->reds);
     Sint blen = bmd->len;
     Sint len = state->len;
     Sint *gs = bmd->goodshift;
@@ -864,7 +894,7 @@ static Sint bm_find_all_non_overlapping(BMFindAllState *state,
 	    state->m = m;
 	    state->allocated = allocated;
 	    state->out = out;
-	    return BM_RESTART;
+	    return BF_RESTART;
 	}
 	for (i = blen - 1; i >= 0 && needle[i] == haystack[i + j]; --i)
 	    ;
@@ -872,10 +902,11 @@ static Sint bm_find_all_non_overlapping(BMFindAllState *state,
 	    if (m >= allocated) {
 		if (!allocated) {
 		    allocated = 10;
-		    out = erts_alloc(ERTS_ALC_T_TMP, sizeof(FindallData) * allocated);
+		    out = erts_alloc(ERTS_ALC_T_BINARY_FIND,
+				     sizeof(FindallData) * allocated);
 		} else {
 		    allocated *= 2;
-		    out = erts_realloc(ERTS_ALC_T_TMP, out,
+		    out = erts_realloc(ERTS_ALC_T_BINARY_FIND, out,
 				       sizeof(FindallData) * allocated);
 		}
 	    }
@@ -890,7 +921,7 @@ static Sint bm_find_all_non_overlapping(BMFindAllState *state,
     state->m = m;
     state->out = out;
     *reductions = reds;
-    return (m == 0) ? BM_NOT_FOUND : BM_OK;
+    return (m == 0) ? BF_NOT_FOUND : BF_OK;
 }
 
 /*
@@ -1016,51 +1047,160 @@ BIF_RETTYPE binary_compile_pattern_1(BIF_ALIST_1)
     BIF_RET(ret);
 }
 
-#define DO_BIN_MATCH_OK 0
-#define DO_BIN_MATCH_BADARG -1
-#define DO_BIN_MATCH_RESTART -2
+#define BF_FLAG_GLOBAL		0x01
+#define BF_FLAG_SPLIT_TRIM	0x02
+#define BF_FLAG_SPLIT_TRIM_ALL	0x04
 
-#define BINARY_FIND_ALL		0x01
-#define BINARY_SPLIT_TRIM	0x02
-#define BINARY_SPLIT_TRIM_ALL	0x04
+static void bf_context_init(BinaryFindContext *ctx, BinaryFindResult not_found,
+			    BinaryFindResult single, BinaryFindResult global,
+			    Binary *pat_bin);
+static BinaryFindContext *bf_context_export(Process *p, BinaryFindContext *src);
+static int bf_context_destructor(Binary *ctx_bin);
+#ifdef HARDDEBUG
+static void bf_context_dump(BinaryFindContext *ctx);
+#endif
 
-typedef struct BinaryFindState {
-    Eterm type;
-    Uint  flags;
-    Uint  hsstart;
-    Uint  hsend;
-    Eterm (*not_found_result) (Process *, Eterm, struct BinaryFindState *);
-    Eterm (*single_result)    (Process *, Eterm, struct BinaryFindState *, Sint, Sint);
-    Eterm (*global_result)    (Process *, Eterm, struct BinaryFindState *, FindallData *, Uint);
-} BinaryFindState;
+static BinaryFindSearch bf_search_ac_global = {
+    ac_init_find_all,
+    ac_find_all_non_overlapping,
+    ac_clean_find_all
+};
+
+static BinaryFindSearch bf_search_ac_single = {
+    ac_init_find_first_match,
+    ac_find_first_match,
+    NULL
+};
+
+static BinaryFindSearch bf_search_bm_global = {
+    bm_init_find_all,
+    bm_find_all_non_overlapping,
+    bm_clean_find_all
+};
+
+static BinaryFindSearch bf_search_bm_single = {
+    bm_init_find_first_match,
+    bm_find_first_match,
+    NULL
+};
+
+static void bf_context_init(BinaryFindContext *ctx, BinaryFindResult not_found,
+			    BinaryFindResult single, BinaryFindResult global,
+			    Binary *pat_bin)
+{
+    ctx->exported = 0;
+    ctx->state = BFSearch;
+    ctx->not_found = not_found;
+    if (ctx->flags & BF_FLAG_GLOBAL) {
+	ctx->found = global;
+	if (ctx->pat_type == am_bm) {
+	    ctx->search = &bf_search_bm_global;
+	    ctx->loop_factor = BM_LOOP_FACTOR;
+	} else if (ctx->pat_type == am_ac) {
+	    ctx->search = &bf_search_ac_global;
+	    ctx->loop_factor = AC_LOOP_FACTOR;
+	}
+    } else {
+	ctx->found = single;
+	if (ctx->pat_type == am_bm) {
+	    ctx->search = &bf_search_bm_single;
+	    ctx->loop_factor = BM_LOOP_FACTOR;
+	} else if (ctx->pat_type == am_ac) {
+	    ctx->search = &bf_search_ac_single;
+	    ctx->loop_factor = AC_LOOP_FACTOR;
+	}
+    }
+    ctx->trap_term = THE_NON_VALUE;
+    ctx->pat_bin = pat_bin;
+    ctx->search->init(ctx);
+}
 
-typedef struct BinaryFindState_bignum {
-    Eterm           bignum_hdr;
-    BinaryFindState bfs;
-    union {
-	BMFindFirstState bmffs;
-	BMFindAllState   bmfas;
-	ACFindFirstState acffs;
-	ACFindAllState   acfas;
-    } data;
-} BinaryFindState_bignum;
-
-#define SIZEOF_BINARY_FIND_STATE(S) \
-	  (sizeof(BinaryFindState)+sizeof(S))
-
-#define SIZEOF_BINARY_FIND_ALL_STATE(S) \
-	  (sizeof(BinaryFindState)+sizeof(S)+(sizeof(FindallData)*(S).m))
-
-static Eterm do_match_not_found_result(Process *p, Eterm subject, BinaryFindState *bfs);
-static Eterm do_match_single_result(Process *p, Eterm subject, BinaryFindState *bfs,
-				    Sint pos, Sint len);
-static Eterm do_match_global_result(Process *p, Eterm subject, BinaryFindState *bfs,
-				    FindallData *fad, Uint fad_sz);
-static Eterm do_split_not_found_result(Process *p, Eterm subject, BinaryFindState *bfs);
-static Eterm do_split_single_result(Process *p, Eterm subject, BinaryFindState *bfs,
-				    Sint pos, Sint len);
-static Eterm do_split_global_result(Process *p, Eterm subject, BinaryFindState *bfs,
-				    FindallData *fad, Uint fad_sz);
+static BinaryFindContext *bf_context_export(Process *p, BinaryFindContext *src)
+{
+    Binary *ctx_bin;
+    BinaryFindContext *ctx;
+    Eterm *hp;
+
+    ASSERT(src->exported == 0);
+    ctx_bin = erts_create_magic_binary(sizeof(BinaryFindContext),
+				       bf_context_destructor);
+    ctx = ERTS_MAGIC_BIN_DATA(ctx_bin);
+    sys_memcpy(ctx, src, sizeof(BinaryFindContext));
+    if (ctx->pat_bin != NULL && ctx->pat_term == THE_NON_VALUE) {
+	hp = HAlloc(p, ERTS_MAGIC_REF_THING_SIZE * 2);
+	ctx->pat_term = erts_mk_magic_ref(&hp, &MSO(p), ctx->pat_bin);
+    } else {
+	hp = HAlloc(p, ERTS_MAGIC_REF_THING_SIZE);
+    }
+    ctx->trap_term = erts_mk_magic_ref(&hp, &MSO(p), ctx_bin);
+    ctx->exported = 1;
+    return ctx;
+}
+
+static int bf_context_destructor(Binary *ctx_bin)
+{
+    BinaryFindContext *ctx;
+
+    ctx = ERTS_MAGIC_BIN_DATA(ctx_bin);
+    if (ctx->state != BFDone) {
+	if (ctx->search->done != NULL) {
+	    ctx->search->done(ctx);
+	}
+	ctx->state = BFDone;
+    }
+    return 1;
+}
+
+#ifdef HARDDEBUG
+static void bf_context_dump(BinaryFindContext *ctx)
+{
+    if (ctx->pat_type == am_bm) {
+	BMData *bm;
+	bm = ERTS_MAGIC_BIN_DATA(ctx->pat_bin);
+	dump_bm_data(bm);
+    } else {
+	ACTrie *act;
+	act = ERTS_MAGIC_BIN_DATA(ctx->pat_bin);
+	dump_ac_trie(act);
+    }
+}
+#endif
+
+static Eterm do_match_not_found_result(Process *p, Eterm subject, BinaryFindContext **ctxp);
+static Eterm do_match_single_result(Process *p, Eterm subject, BinaryFindContext **ctxp);
+static Eterm do_match_global_result(Process *p, Eterm subject, BinaryFindContext **ctxp);
+static Eterm do_split_not_found_result(Process *p, Eterm subject, BinaryFindContext **ctxp);
+static Eterm do_split_single_result(Process *p, Eterm subject, BinaryFindContext **ctxp);
+static Eterm do_split_global_result(Process *p, Eterm subject, BinaryFindContext **ctxp);
+
+static BFReturn maybe_binary_match_compile(BinaryFindContext *ctx, Eterm arg, Binary **pat_bin)
+{
+    Eterm *tp;
+    ctx->pat_term = THE_NON_VALUE;
+    if (is_tuple(arg)) {
+	tp = tuple_val(arg);
+	if (arityval(*tp) != 2 || is_not_atom(tp[1])) {
+	    return BF_BADARG;
+	}
+	if (((tp[1] != am_bm) && (tp[1] != am_ac)) ||
+	    !is_internal_magic_ref(tp[2])) {
+	    return BF_BADARG;
+	}
+	*pat_bin = erts_magic_ref2bin(tp[2]);
+	if ((tp[1] == am_bm &&
+	     ERTS_MAGIC_BIN_DESTRUCTOR(*pat_bin) != cleanup_my_data_bm) ||
+	    (tp[1] == am_ac &&
+	     ERTS_MAGIC_BIN_DESTRUCTOR(*pat_bin) != cleanup_my_data_ac)) {
+	    *pat_bin = NULL;
+	    return BF_BADARG;
+	}
+	ctx->pat_type = tp[1];
+	ctx->pat_term = tp[2];
+    } else if (do_binary_match_compile(arg, &(ctx->pat_type), pat_bin) != 0) {
+	return BF_BADARG;
+    }
+    return BF_OK;
+}
 
 static int parse_match_opts_list(Eterm l, Eterm bin, Uint *posp, Uint *endp)
 {
@@ -1141,17 +1281,17 @@ static int parse_split_opts_list(Eterm l, Eterm bin, Uint *posp, Uint *endp, Uin
 	    Uint orig_size;
 	    if (is_atom(t)) {
 		if (t == am_global) {
-		    *optp |= BINARY_FIND_ALL;
+		    *optp |= BF_FLAG_GLOBAL;
 		    l = CDR(list_val(l));
 		    continue;
 		}
 		if (t == am_trim) {
-		    *optp |= BINARY_SPLIT_TRIM;
+		    *optp |= BF_FLAG_SPLIT_TRIM;
 		    l = CDR(list_val(l));
 		    continue;
 		}
 		if (t == am_trim_all) {
-		    *optp |= BINARY_SPLIT_TRIM_ALL;
+		    *optp |= BF_FLAG_SPLIT_TRIM_ALL;
 		    l = CDR(list_val(l));
 		    continue;
 		}
@@ -1204,266 +1344,160 @@ static int parse_split_opts_list(Eterm l, Eterm bin, Uint *posp, Uint *endp, Uin
     }
 }
 
-static int do_binary_find(Process *p, Eterm subject, BinaryFindState *bfs, Binary *bin,
-			  Eterm state_term, Eterm *res_term)
+static BFReturn do_binary_find(Process *p, Eterm subject, BinaryFindContext **ctxp,
+			       Binary *pat_bin, Binary *ctx_bin, Eterm *res_term)
 {
-    byte *bytes;
-    Uint bitoffs, bitsize;
-    byte *temp_alloc = NULL;
-    BinaryFindState_bignum *state_ptr = NULL;
+    BinaryFindContext *ctx;
+    int is_first_call;
+    Uint initial_reds;
+    BFReturn runres;
 
-    ERTS_GET_BINARY_BYTES(subject, bytes, bitoffs, bitsize);
-    if (bitsize != 0) {
-	goto badarg;
-    }
-    if (bitoffs != 0) {
-	bytes = erts_get_aligned_binary_bytes(subject, &temp_alloc);
-    }
-    if (state_term != NIL) {
-	state_ptr = (BinaryFindState_bignum *)(big_val(state_term));
-	bfs = &(state_ptr->bfs);
+    if (ctx_bin == NULL) {
+	is_first_call = 1;
+	ctx = *ctxp;
+    } else {
+	is_first_call = 0;
+	ctx = ERTS_MAGIC_BIN_DATA(ctx_bin);
+	ctx->pat_bin = pat_bin;
+	*ctxp = ctx;
     }
 
-    if (bfs->flags & BINARY_FIND_ALL) {
-	if (bfs->type == am_bm) {
-	    BMData *bm;
-	    Sint pos;
-	    BMFindAllState state;
-	    Uint reds = get_reds(p, BM_LOOP_FACTOR);
-	    Uint save_reds = reds;
+    initial_reds = ctx->reds = get_reds(p, ctx->loop_factor);
 
-	    bm = (BMData *) ERTS_MAGIC_BIN_DATA(bin);
-#ifdef HARDDEBUG
-	    dump_bm_data(bm);
-#endif
-	    if (state_term == NIL) {
-		bm_init_find_all(&state, bfs->hsstart, bfs->hsend);
-	    } else {
-		bm_restore_find_all(&state, &(state_ptr->data.bmfas));
-	    }
+    switch (ctx->state) {
+    case BFSearch: {
+	byte *bytes;
+	Uint bitoffs, bitsize;
+	byte *temp_alloc = NULL;
 
-	    pos = bm_find_all_non_overlapping(&state, bm, bytes, &reds);
-	    if (pos == BM_NOT_FOUND) {
-		*res_term = bfs->not_found_result(p, subject, bfs);
-	    } else if (pos == BM_RESTART) {
-		int x =
-		    (SIZEOF_BINARY_FIND_ALL_STATE(state) / sizeof(Eterm)) +
-		    !!(SIZEOF_BINARY_FIND_ALL_STATE(state) % sizeof(Eterm));
-#ifdef HARDDEBUG
-		erts_printf("Trap bm!\n");
-#endif
-		state_ptr = (BinaryFindState_bignum*) HAlloc(p, x+1);
-		state_ptr->bignum_hdr = make_pos_bignum_header(x);
-		memcpy(&state_ptr->bfs, bfs, sizeof(BinaryFindState));
-		bm_serialize_find_all(&state, &state_ptr->data.bmfas);
-		*res_term = make_big(&state_ptr->bignum_hdr);
-		erts_free_aligned_binary_bytes(temp_alloc);
-		bm_clean_find_all(&state);
-		return DO_BIN_MATCH_RESTART;
-	    } else {
-		*res_term = bfs->global_result(p, subject, bfs, state.out, state.m);
-	    }
-	    erts_free_aligned_binary_bytes(temp_alloc);
-	    bm_clean_find_all(&state);
-	    BUMP_REDS(p, (save_reds - reds) / BM_LOOP_FACTOR);
-	    return DO_BIN_MATCH_OK;
-	} else if (bfs->type == am_ac) {
-	    ACTrie *act;
-	    int acr;
-	    ACFindAllState state;
-	    Uint reds = get_reds(p, AC_LOOP_FACTOR);
-	    Uint save_reds = reds;
-
-	    act = (ACTrie *) ERTS_MAGIC_BIN_DATA(bin);
+	ERTS_GET_BINARY_BYTES(subject, bytes, bitoffs, bitsize);
+	if (bitsize != 0) {
+	    goto badarg;
+	}
+	if (bitoffs != 0) {
+	    bytes = erts_get_aligned_binary_bytes(subject, &temp_alloc);
+	}
 #ifdef HARDDEBUG
-	    dump_ac_trie(act);
+	bf_context_dump(ctx);
 #endif
-	    if (state_term == NIL) {
-		ac_init_find_all(&state, act, bfs->hsstart, bfs->hsend);
-	    } else {
-		ac_restore_find_all(&state, &(state_ptr->data.acfas));
-	    }
-	    acr = ac_find_all_non_overlapping(&state, bytes, &reds);
-	    if (acr == AC_NOT_FOUND) {
-		*res_term = bfs->not_found_result(p, subject, bfs);
-	    } else if (acr == AC_RESTART) {
-		int x =
-		    (SIZEOF_BINARY_FIND_ALL_STATE(state) / sizeof(Eterm)) +
-		    !!(SIZEOF_BINARY_FIND_ALL_STATE(state) % sizeof(Eterm));
+	runres = ctx->search->find(ctx, bytes);
+	if (runres == BF_NOT_FOUND) {
+	    *res_term = ctx->not_found(p, subject, &ctx);
+	    *ctxp = ctx;
+	} else if (runres == BF_RESTART) {
 #ifdef HARDDEBUG
+	    if (ctx->pat_type == am_ac) {
 		erts_printf("Trap ac!\n");
-#endif
-                state_ptr = (BinaryFindState_bignum*) HAlloc(p, x+1);
-		state_ptr->bignum_hdr = make_pos_bignum_header(x);
-		memcpy(&state_ptr->bfs, bfs, sizeof(BinaryFindState));
-		ac_serialize_find_all(&state, &state_ptr->data.acfas);
-		*res_term = make_big(&state_ptr->bignum_hdr);
-		erts_free_aligned_binary_bytes(temp_alloc);
-		ac_clean_find_all(&state);
-		return DO_BIN_MATCH_RESTART;
-	    } else {
-		*res_term = bfs->global_result(p, subject, bfs, state.out, state.m);
-	    }
-	    erts_free_aligned_binary_bytes(temp_alloc);
-	    ac_clean_find_all(&state);
-	    BUMP_REDS(p, (save_reds - reds) / AC_LOOP_FACTOR);
-	    return DO_BIN_MATCH_OK;
-	}
-    } else {
-	if (bfs->type == am_bm) {
-	    BMData *bm;
-	    Sint pos;
-	    BMFindFirstState state;
-	    Uint reds = get_reds(p, BM_LOOP_FACTOR);
-	    Uint save_reds = reds;
-
-	    bm = (BMData *) ERTS_MAGIC_BIN_DATA(bin);
-#ifdef HARDDEBUG
-	    dump_bm_data(bm);
-#endif
-	    if (state_term == NIL) {
-		bm_init_find_first_match(&state, bfs->hsstart, bfs->hsend);
 	    } else {
-		memcpy(&state, &state_ptr->data.bmffs, sizeof(BMFindFirstState));
-	    }
-
-#ifdef HARDDEBUG
-	    erts_printf("(bm) state->pos = %ld, state->len = %lu\n",state.pos,
-			state.len);
-#endif
-	    pos = bm_find_first_match(&state, bm, bytes, &reds);
-	    if (pos == BM_NOT_FOUND) {
-		*res_term = bfs->not_found_result(p, subject, bfs);
-	    } else if (pos == BM_RESTART) {
-		int x =
-		    (SIZEOF_BINARY_FIND_STATE(state) / sizeof(Eterm)) +
-		    !!(SIZEOF_BINARY_FIND_STATE(state) % sizeof(Eterm));
-#ifdef HARDDEBUG
 		erts_printf("Trap bm!\n");
+	    }
 #endif
-                state_ptr = (BinaryFindState_bignum*) HAlloc(p, x+1);
-                state_ptr->bignum_hdr = make_pos_bignum_header(x);
-		memcpy(&state_ptr->bfs, bfs, sizeof(BinaryFindState));
-		memcpy(&state_ptr->data.acffs, &state, sizeof(BMFindFirstState));
-		*res_term = make_big(&state_ptr->bignum_hdr);
-		erts_free_aligned_binary_bytes(temp_alloc);
-		return DO_BIN_MATCH_RESTART;
-	    } else {
-		*res_term = bfs->single_result(p, subject, bfs, pos, bm->len);
+	    if (is_first_call) {
+		ctx = bf_context_export(p, ctx);
+		*ctxp = ctx;
+		erts_set_gc_state(p, 0);
 	    }
 	    erts_free_aligned_binary_bytes(temp_alloc);
-	    BUMP_REDS(p, (save_reds - reds) / BM_LOOP_FACTOR);
-	    return DO_BIN_MATCH_OK;
-	} else if (bfs->type == am_ac) {
-	    ACTrie *act;
-	    Uint pos, rlen;
-	    int acr;
-	    ACFindFirstState state;
-	    Uint reds = get_reds(p, AC_LOOP_FACTOR);
-	    Uint save_reds = reds;
-
-	    act = (ACTrie *) ERTS_MAGIC_BIN_DATA(bin);
-#ifdef HARDDEBUG
-	    dump_ac_trie(act);
-#endif
-	    if (state_term == NIL) {
-		ac_init_find_first_match(&state, act, bfs->hsstart, bfs->hsend);
-	    } else {
-		memcpy(&state, &state_ptr->data.acffs, sizeof(ACFindFirstState));
+	    *res_term = THE_NON_VALUE;
+	    BUMP_ALL_REDS(p);
+	    return BF_RESTART;
+	} else {
+	    *res_term = ctx->found(p, subject, &ctx);
+	    *ctxp = ctx;
+	}
+	erts_free_aligned_binary_bytes(temp_alloc);
+	if (*res_term == THE_NON_VALUE) {
+	    if (is_first_call) {
+		erts_set_gc_state(p, 0);
 	    }
-	    acr = ac_find_first_match(&state, bytes, &pos, &rlen, &reds);
-	    if (acr == AC_NOT_FOUND) {
-		*res_term = bfs->not_found_result(p, subject, bfs);
-	    } else if (acr == AC_RESTART) {
-		int x =
-		    (SIZEOF_BINARY_FIND_STATE(state) / sizeof(Eterm)) +
-		    !!(SIZEOF_BINARY_FIND_STATE(state) % sizeof(Eterm));
-#ifdef HARDDEBUG
-		erts_printf("Trap ac!\n");
-#endif
-		state_ptr = (BinaryFindState_bignum*) HAlloc(p, x+1);
-		state_ptr->bignum_hdr = make_pos_bignum_header(x);
-		memcpy(&state_ptr->bfs, bfs, sizeof(BinaryFindState));
-		memcpy(&state_ptr->data.acffs, &state, sizeof(ACFindFirstState));
-		*res_term = make_big(&state_ptr->bignum_hdr);
-		erts_free_aligned_binary_bytes(temp_alloc);
-		return DO_BIN_MATCH_RESTART;
-	    } else {
-		*res_term = bfs->single_result(p, subject, bfs, pos, rlen);
+	    BUMP_ALL_REDS(p);
+	    return BF_RESTART;
+	}
+	if (ctx->search->done != NULL) {
+	    ctx->search->done(ctx);
+	}
+	ctx->state = BFDone;
+	if (!is_first_call) {
+	    erts_set_gc_state(p, 1);
+	}
+	BUMP_REDS(p, (initial_reds - ctx->reds) / ctx->loop_factor);
+	return BF_OK;
+    }
+    case BFResult: {
+	*res_term = ctx->found(p, subject, &ctx);
+	*ctxp = ctx;
+	if (*res_term == THE_NON_VALUE) {
+	    if (is_first_call) {
+		erts_set_gc_state(p, 0);
 	    }
-	    erts_free_aligned_binary_bytes(temp_alloc);
-	    BUMP_REDS(p, (save_reds - reds) / AC_LOOP_FACTOR);
-	    return DO_BIN_MATCH_OK;
+	    BUMP_ALL_REDS(p);
+	    return BF_RESTART;
 	}
+	if (ctx->search->done != NULL) {
+	    ctx->search->done(ctx);
+	}
+	ctx->state = BFDone;
+	if (!is_first_call) {
+	    erts_set_gc_state(p, 1);
+	}
+	BUMP_REDS(p, (initial_reds - ctx->reds) / ctx->loop_factor);
+	return BF_OK;
     }
- badarg:
-    return DO_BIN_MATCH_BADARG;
+    default:
+	ASSERT(!"Unknown state in do_binary_find");
+    }
+
+badarg:
+    if (!is_first_call) {
+	if (ctx->search->done != NULL) {
+	    ctx->search->done(ctx);
+	}
+	ctx->state = BFDone;
+	erts_set_gc_state(p, 1);
+    }
+    return BF_BADARG;
 }
 
 static BIF_RETTYPE
 binary_match(Process *p, Eterm arg1, Eterm arg2, Eterm arg3, Uint flags)
 {
-    BinaryFindState bfs;
-    Eterm *tp;
-    Binary *bin;
-    Eterm bin_term = NIL;
+    BinaryFindContext c_buff;
+    BinaryFindContext *ctx = &c_buff;
+    Binary *pat_bin;
     int runres;
     Eterm result;
 
-    if (is_not_binary(arg1)) {
+    if (is_not_binary(arg1) || binary_bitsize(arg1) != 0) {
 	goto badarg;
     }
-    bfs.flags = flags;
-    if (parse_match_opts_list(arg3, arg1, &(bfs.hsstart), &(bfs.hsend))) {
+    ctx->flags = flags;
+    if (parse_match_opts_list(arg3, arg1, &(ctx->hsstart), &(ctx->hsend))) {
 	goto badarg;
     }
-    if (bfs.hsend == 0) {
-	BIF_RET(do_match_not_found_result(p, arg1, &bfs));
+    if (ctx->hsend == 0) {
+	result = do_match_not_found_result(p, arg1, &ctx);
+	BIF_RET(result);
     }
-    if (is_tuple(arg2)) {
-	tp = tuple_val(arg2);
-	if (arityval(*tp) != 2 || is_not_atom(tp[1])) {
-	    goto badarg;
-	}
-	if (((tp[1] != am_bm) && (tp[1] != am_ac)) ||
-	    !is_internal_magic_ref(tp[2])) {
-	    goto badarg;
-	}
-	bfs.type = tp[1];
-	bin = erts_magic_ref2bin(tp[2]);
-	if (bfs.type == am_bm &&
-	    ERTS_MAGIC_BIN_DESTRUCTOR(bin) != cleanup_my_data_bm) {
-	    goto badarg;
-	}
-	if (bfs.type == am_ac &&
-	    ERTS_MAGIC_BIN_DESTRUCTOR(bin) != cleanup_my_data_ac) {
-	    goto badarg;
-	}
-	bin_term = tp[2];
-    } else if (do_binary_match_compile(arg2, &(bfs.type), &bin)) {
+    if (maybe_binary_match_compile(ctx, arg2, &pat_bin) != BF_OK) {
 	goto badarg;
     }
-    bfs.not_found_result = &do_match_not_found_result;
-    bfs.single_result = &do_match_single_result;
-    bfs.global_result = &do_match_global_result;
-    runres = do_binary_find(p, arg1, &bfs, bin, NIL, &result);
-    if (runres == DO_BIN_MATCH_RESTART && bin_term == NIL) {
-	Eterm *hp = HAlloc(p, ERTS_MAGIC_REF_THING_SIZE);
-	bin_term = erts_mk_magic_ref(&hp, &MSO(p), bin);
-    } else if (bin_term == NIL) {
-	erts_bin_free(bin);
+    bf_context_init(ctx, do_match_not_found_result, do_match_single_result,
+		    do_match_global_result, pat_bin);
+    runres = do_binary_find(p, arg1, &ctx, pat_bin, NULL, &result);
+    if (runres == BF_OK && ctx->pat_term == THE_NON_VALUE) {
+	erts_bin_free(pat_bin);
     }
     switch (runres) {
-    case DO_BIN_MATCH_OK:
+    case BF_OK:
 	BIF_RET(result);
-    case DO_BIN_MATCH_RESTART:
-	BUMP_ALL_REDS(p);
-	BIF_TRAP3(&binary_find_trap_export, p, arg1, result, bin_term);
+    case BF_RESTART:
+	ASSERT(result == THE_NON_VALUE && ctx->trap_term != result && ctx->pat_term != result);
+	BIF_TRAP3(&binary_find_trap_export, p, arg1, ctx->trap_term, ctx->pat_term);
     default:
 	goto badarg;
     }
- badarg:
-    BIF_ERROR(p,BADARG);
+badarg:
+    BIF_ERROR(p, BADARG);
 }
 
 BIF_RETTYPE binary_match_2(BIF_ALIST_2)
@@ -1478,76 +1512,52 @@ BIF_RETTYPE binary_match_3(BIF_ALIST_3)
 
 BIF_RETTYPE binary_matches_2(BIF_ALIST_2)
 {
-    return binary_match(BIF_P, BIF_ARG_1, BIF_ARG_2, THE_NON_VALUE, BINARY_FIND_ALL);
+    return binary_match(BIF_P, BIF_ARG_1, BIF_ARG_2, THE_NON_VALUE, BF_FLAG_GLOBAL);
 }
 
 BIF_RETTYPE binary_matches_3(BIF_ALIST_3)
 {
-    return binary_match(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, BINARY_FIND_ALL);
+    return binary_match(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, BF_FLAG_GLOBAL);
 }
 
 static BIF_RETTYPE
 binary_split(Process *p, Eterm arg1, Eterm arg2, Eterm arg3)
 {
-    BinaryFindState bfs;
-    Eterm *tp;
-    Binary *bin;
-    Eterm bin_term = NIL;
+    BinaryFindContext c_buff;
+    BinaryFindContext *ctx = &c_buff;
+    Binary *pat_bin;
     int runres;
     Eterm result;
 
-    if (is_not_binary(arg1)) {
+    if (is_not_binary(arg1) || binary_bitsize(arg1) != 0) {
 	goto badarg;
     }
-    if (parse_split_opts_list(arg3, arg1, &(bfs.hsstart), &(bfs.hsend), &(bfs.flags))) {
+    if (parse_split_opts_list(arg3, arg1, &(ctx->hsstart), &(ctx->hsend), &(ctx->flags))) {
 	goto badarg;
     }
-    if (bfs.hsend == 0) {
-	result = do_split_not_found_result(p, arg1, &bfs);
+    if (ctx->hsend == 0) {
+	result = do_split_not_found_result(p, arg1, &ctx);
 	BIF_RET(result);
     }
-    if (is_tuple(arg2)) {
-	tp = tuple_val(arg2);
-	if (arityval(*tp) != 2 || is_not_atom(tp[1])) {
-	    goto badarg;
-	}
-	if (((tp[1] != am_bm) && (tp[1] != am_ac)) ||
-	    !is_internal_magic_ref(tp[2])) {
-	    goto badarg;
-	}
-	bfs.type = tp[1];
-	bin = erts_magic_ref2bin(tp[2]);
-	if (bfs.type == am_bm &&
-	    ERTS_MAGIC_BIN_DESTRUCTOR(bin) != cleanup_my_data_bm) {
-	    goto badarg;
-	}
-	if (bfs.type == am_ac &&
-	    ERTS_MAGIC_BIN_DESTRUCTOR(bin) != cleanup_my_data_ac) {
-	    goto badarg;
-	}
-	bin_term = tp[2];
-    } else if (do_binary_match_compile(arg2, &(bfs.type), &bin)) {
+    if (maybe_binary_match_compile(ctx, arg2, &pat_bin) != BF_OK) {
 	goto badarg;
     }
-    bfs.not_found_result = &do_split_not_found_result;
-    bfs.single_result = &do_split_single_result;
-    bfs.global_result = &do_split_global_result;
-    runres = do_binary_find(p, arg1, &bfs, bin, NIL, &result);
-    if (runres == DO_BIN_MATCH_RESTART && bin_term == NIL) {
-	Eterm *hp = HAlloc(p, ERTS_MAGIC_REF_THING_SIZE);
-	bin_term = erts_mk_magic_ref(&hp, &MSO(p), bin);
-    } else if (bin_term == NIL) {
-	erts_bin_free(bin);
-    }
-    switch(runres) {
-    case DO_BIN_MATCH_OK:
+    bf_context_init(ctx, do_split_not_found_result, do_split_single_result,
+		    do_split_global_result, pat_bin);
+    runres = do_binary_find(p, arg1, &ctx, pat_bin, NULL, &result);
+    if (runres == BF_OK && ctx->pat_term == THE_NON_VALUE) {
+	erts_bin_free(pat_bin);
+    }
+    switch (runres) {
+    case BF_OK:
 	BIF_RET(result);
-    case DO_BIN_MATCH_RESTART:
-	BIF_TRAP3(&binary_find_trap_export, p, arg1, result, bin_term);
+    case BF_RESTART:
+	ASSERT(result == THE_NON_VALUE && ctx->trap_term != result && ctx->pat_term != result);
+	BIF_TRAP3(&binary_find_trap_export, p, arg1, ctx->trap_term, ctx->pat_term);
     default:
 	goto badarg;
     }
- badarg:
+badarg:
     BIF_ERROR(p, BADARG);
 }
 
@@ -1561,72 +1571,117 @@ BIF_RETTYPE binary_split_3(BIF_ALIST_3)
     return binary_split(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
 }
 
-static Eterm do_match_not_found_result(Process *p, Eterm subject, BinaryFindState *bfs)
+static Eterm do_match_not_found_result(Process *p, Eterm subject, BinaryFindContext **ctxp)
 {
-    if (bfs->flags & BINARY_FIND_ALL) {
+    if ((*ctxp)->flags & BF_FLAG_GLOBAL) {
 	return NIL;
     } else {
 	return am_nomatch;
     }
 }
 
-static Eterm do_match_single_result(Process *p, Eterm subject, BinaryFindState *bfs,
-				    Sint pos, Sint len)
+static Eterm do_match_single_result(Process *p, Eterm subject, BinaryFindContext **ctxp)
 {
+    BinaryFindContext *ctx = (*ctxp);
+    BinaryFindFirstContext *ff = &(ctx->u.ff);
     Eterm erlen;
     Eterm *hp;
     Eterm ret;
 
-    erlen = erts_make_integer((Uint)(len), p);
-    ret = erts_make_integer(pos, p);
+    erlen = erts_make_integer((Uint)(ff->len), p);
+    ret = erts_make_integer(ff->pos, p);
     hp = HAlloc(p, 3);
     ret = TUPLE2(hp, ret, erlen);
 
     return ret;
 }
 
-static Eterm do_match_global_result(Process *p, Eterm subject, BinaryFindState *bfs,
-				    FindallData *fad, Uint fad_sz)
+static Eterm do_match_global_result(Process *p, Eterm subject, BinaryFindContext **ctxp)
 {
-    Sint i;
+    BinaryFindContext *ctx = (*ctxp);
+    BinaryFindAllContext *fa = &(ctx->u.fa);
+    FindallData *fad;
     Eterm tpl;
-    Eterm *hp;
-    Eterm ret;
+    Sint i;
+    register Uint reds = ctx->reds;
 
-    for (i = 0; i < fad_sz; ++i) {
-	fad[i].epos = erts_make_integer(fad[i].pos, p);
-	fad[i].elen = erts_make_integer(fad[i].len, p);
+    if (ctx->state == BFSearch) {
+	if (ctx->pat_type == am_ac) {
+	    fa->data = fa->d.ac.out;
+	    fa->size = fa->d.ac.m;
+	} else {
+	    fa->data = fa->d.bm.out;
+	    fa->size = fa->d.bm.m;
+	}
+	fa->tail = fa->size - 1;
+	fa->head = 0;
+	fa->end_pos = 0;
+	fa->term = NIL;
+	if (ctx->exported == 0 && ((fa->size * 2) >= reds)) {
+	    ctx = bf_context_export(p, ctx);
+	    *ctxp = ctx;
+	    fa = &(ctx->u.fa);
+	}
+	erts_factory_proc_prealloc_init(&(fa->factory), p, fa->size * (3 + 2));
+	ctx->state = BFResult;
+    }
+
+    fad = fa->data;
+
+    if (fa->end_pos == 0) {
+	for (i = fa->head; i < fa->size; ++i) {
+	    if (--reds == 0) {
+		ASSERT(ctx->exported == 1);
+		fa->head = i;
+		ctx->reds = reds;
+		return THE_NON_VALUE;
+	    }
+	    fad[i].epos = erts_make_integer(fad[i].pos, p);
+	    fad[i].elen = erts_make_integer(fad[i].len, p);
+	}
+	fa->end_pos = 1;
+	fa->head = fa->tail;
     }
-    hp = HAlloc(p, fad_sz * (3 + 2));
-    ret = NIL;
-    for (i = fad_sz - 1; i >= 0; --i) {
-	tpl = TUPLE2(hp, fad[i].epos, fad[i].elen);
-	hp += 3;
-	ret = CONS(hp, tpl, ret);
-	hp += 2;
+
+    for (i = fa->head; i >= 0; --i) {
+	if (--reds == 0) {
+	    ASSERT(ctx->exported == 1);
+	    fa->head = i;
+	    ctx->reds = reds;
+	    return THE_NON_VALUE;
+	}
+	tpl = TUPLE2(fa->factory.hp, fad[i].epos, fad[i].elen);
+	fa->factory.hp += 3;
+	fa->term = CONS(fa->factory.hp, tpl, fa->term);
+	fa->factory.hp += 2;
     }
+    ctx->reds = reds;
+    erts_factory_close(&(fa->factory));
 
-    return ret;
+    return fa->term;
 }
 
-static Eterm do_split_not_found_result(Process *p, Eterm subject, BinaryFindState *bfs)
+static Eterm do_split_not_found_result(Process *p, Eterm subject, BinaryFindContext **ctxp)
 {
+    BinaryFindContext *ctx = (*ctxp);
     Eterm *hp;
     Eterm ret;
 
-    if (bfs->flags & (BINARY_SPLIT_TRIM | BINARY_SPLIT_TRIM_ALL)
+    if (ctx->flags & (BF_FLAG_SPLIT_TRIM | BF_FLAG_SPLIT_TRIM_ALL)
         && binary_size(subject) == 0) {
-        return NIL;
+	return NIL;
     }
     hp = HAlloc(p, 2);
     ret = CONS(hp, subject, NIL);
-
     return ret;
 }
 
-static Eterm do_split_single_result(Process *p, Eterm subject, BinaryFindState *bfs,
-				    Sint pos, Sint len)
+static Eterm do_split_single_result(Process *p, Eterm subject, BinaryFindContext **ctxp)
 {
+    BinaryFindContext *ctx = (*ctxp);
+    BinaryFindFirstContext *ff = &(ctx->u.ff);
+    Sint pos;
+    Sint len;
     size_t orig_size;
     Eterm orig;
     Uint offset;
@@ -1637,9 +1692,12 @@ static Eterm do_split_single_result(Process *p, Eterm subject, BinaryFindState *
     Eterm *hp;
     Eterm ret;
 
+    pos = ff->pos;
+    len = ff->len;
+
     orig_size = binary_size(subject);
 
-    if ((bfs->flags & (BINARY_SPLIT_TRIM | BINARY_SPLIT_TRIM_ALL)) &&
+    if ((ctx->flags & (BF_FLAG_SPLIT_TRIM | BF_FLAG_SPLIT_TRIM_ALL)) &&
 	(orig_size - pos - len) == 0) {
 	if (pos == 0) {
 	    ret = NIL;
@@ -1660,7 +1718,7 @@ static Eterm do_split_single_result(Process *p, Eterm subject, BinaryFindState *
 	    hp += 2;
 	}
     } else {
-	if ((bfs->flags & BINARY_SPLIT_TRIM_ALL) && (pos == 0)) {
+	if ((ctx->flags & BF_FLAG_SPLIT_TRIM_ALL) && (pos == 0)) {
 	    hp = HAlloc(p, 1 * (ERL_SUB_BIN_SIZE + 2));
 	    ERTS_GET_REAL_BIN(subject, orig, offset, bit_offset, bit_size);
 	    sb1 = NULL;
@@ -1698,39 +1756,60 @@ static Eterm do_split_single_result(Process *p, Eterm subject, BinaryFindState *
     return ret;
 }
 
-static Eterm do_split_global_result(Process *p, Eterm subject, BinaryFindState *bfs,
-				    FindallData *fad, Uint fad_sz)
+static Eterm do_split_global_result(Process *p, Eterm subject, BinaryFindContext **ctxp)
 {
-    size_t orig_size;
+    BinaryFindContext *ctx = (*ctxp);
+    BinaryFindAllContext *fa = &(ctx->u.fa);
+    FindallData *fad;
     Eterm orig;
+    size_t orig_size;
     Uint offset;
     Uint bit_offset;
     Uint bit_size;
     ErlSubBin *sb;
+    Uint do_trim;
     Sint i;
-    Sint tail;
-    Uint list_size;
-    Uint end_pos;
-    Uint do_trim = bfs->flags & (BINARY_SPLIT_TRIM | BINARY_SPLIT_TRIM_ALL);
-    Eterm *hp;
-    Eterm *hendp;
-    Eterm ret;
+    register Uint reds = ctx->reds;
 
-    tail = fad_sz - 1;
-    list_size = fad_sz + 1;
-    orig_size = binary_size(subject);
-    end_pos = (Uint)(orig_size);
+    if (ctx->state == BFSearch) {
+	if (ctx->pat_type == am_ac) {
+	    fa->data = fa->d.ac.out;
+	    fa->size = fa->d.ac.m;
+	} else {
+	    fa->data = fa->d.bm.out;
+	    fa->size = fa->d.bm.m;
+	}
+	fa->tail = fa->size - 1;
+	fa->head = fa->tail;
+	orig_size = binary_size(subject);
+	fa->end_pos = (Uint)(orig_size);
+	fa->term = NIL;
+	if (ctx->exported == 0 && ((fa->head + 1) >= reds)) {
+	    ctx = bf_context_export(p, ctx);
+	    *ctxp = ctx;
+	    fa = &(ctx->u.fa);
+	}
+	erts_factory_proc_prealloc_init(&(fa->factory), p, (fa->size + 1) * (ERL_SUB_BIN_SIZE + 2));
+	ctx->state = BFResult;
+    }
 
-    hp = HAlloc(p, list_size * (ERL_SUB_BIN_SIZE + 2));
-    hendp = hp + list_size * (ERL_SUB_BIN_SIZE + 2);
     ERTS_GET_REAL_BIN(subject, orig, offset, bit_offset, bit_size);
     ASSERT(bit_size == 0);
+    fad = fa->data;
+    do_trim = ctx->flags & (BF_FLAG_SPLIT_TRIM | BF_FLAG_SPLIT_TRIM_ALL);
 
-    ret = NIL;
-
-    for (i = tail; i >= 0; --i) {
-	sb = (ErlSubBin *)(hp);
-	sb->size = end_pos - (fad[i].pos + fad[i].len);
+    for (i = fa->head; i >= 0; --i) {
+	if (--reds == 0) {
+	    ASSERT(ctx->exported == 1);
+	    fa->head = i;
+	    ctx->reds = reds;
+	    if (!do_trim && (ctx->flags & BF_FLAG_SPLIT_TRIM)) {
+		ctx->flags &= ~BF_FLAG_SPLIT_TRIM;
+	    }
+	    return THE_NON_VALUE;
+	}
+	sb = (ErlSubBin *)(fa->factory.hp);
+	sb->size = fa->end_pos - (fad[i].pos + fad[i].len);
 	if (!(sb->size == 0 && do_trim)) {
 	    sb->thing_word = HEADER_SUB_BIN;
 	    sb->offs = offset + fad[i].pos + fad[i].len;
@@ -1738,15 +1817,18 @@ static Eterm do_split_global_result(Process *p, Eterm subject, BinaryFindState *
 	    sb->bitoffs = bit_offset;
 	    sb->bitsize = 0;
 	    sb->is_writable = 0;
-	    hp += ERL_SUB_BIN_SIZE;
-	    ret = CONS(hp, make_binary(sb), ret);
-	    hp += 2;
-	    do_trim &= ~BINARY_SPLIT_TRIM;
+	    fa->factory.hp += ERL_SUB_BIN_SIZE;
+	    fa->term = CONS(fa->factory.hp, make_binary(sb), fa->term);
+	    fa->factory.hp += 2;
+	    do_trim &= ~BF_FLAG_SPLIT_TRIM;
 	}
-	end_pos = fad[i].pos;
+	fa->end_pos = fad[i].pos;
     }
 
-    sb = (ErlSubBin *)(hp);
+    fa->head = i;
+    ctx->reds = reds;
+
+    sb = (ErlSubBin *)(fa->factory.hp);
     sb->size = fad[0].pos;
     if (!(sb->size == 0 && do_trim)) {
 	sb->thing_word = HEADER_SUB_BIN;
@@ -1755,26 +1837,31 @@ static Eterm do_split_global_result(Process *p, Eterm subject, BinaryFindState *
 	sb->bitoffs = bit_offset;
 	sb->bitsize = 0;
 	sb->is_writable = 0;
-	hp += ERL_SUB_BIN_SIZE;
-	ret = CONS(hp, make_binary(sb), ret);
-	hp += 2;
+	fa->factory.hp += ERL_SUB_BIN_SIZE;
+	fa->term = CONS(fa->factory.hp, make_binary(sb), fa->term);
+	fa->factory.hp += 2;
     }
-    HRelease(p, hendp, hp);
-    return ret;
+    erts_factory_close(&(fa->factory));
+
+    return fa->term;
 }
 
 static BIF_RETTYPE binary_find_trap(BIF_ALIST_3)
 {
     int runres;
     Eterm result;
-    Binary *bin = erts_magic_ref2bin(BIF_ARG_3);
-
-    runres = do_binary_find(BIF_P, BIF_ARG_1, NULL, bin, BIF_ARG_2, &result);
-    if (runres == DO_BIN_MATCH_OK) {
+    Binary *ctx_bin = erts_magic_ref2bin(BIF_ARG_2);
+    Binary *pat_bin = erts_magic_ref2bin(BIF_ARG_3);
+    BinaryFindContext *ctx = NULL;
+
+    ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(ctx_bin) == bf_context_destructor);
+    runres = do_binary_find(BIF_P, BIF_ARG_1, &ctx, pat_bin, ctx_bin, &result);
+    if (runres == BF_OK) {
+	ASSERT(result != THE_NON_VALUE);
 	BIF_RET(result);
     } else {
-	BUMP_ALL_REDS(BIF_P);
-	BIF_TRAP3(&binary_find_trap_export, BIF_P, BIF_ARG_1, result, BIF_ARG_3);
+	ASSERT(result == THE_NON_VALUE && ctx->trap_term != result && ctx->pat_term != result);
+	BIF_TRAP3(&binary_find_trap_export, BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
     }
 }
 
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 2ff95a3338..27bbf70c0b 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -46,8 +46,10 @@
 #include "erl_thr_progress.h"
 #include "erl_bif_unique.h"
 #include "erl_map.h"
+#include "erl_check_io.h"
 #define ERTS_PTAB_WANT_DEBUG_FUNCS__
 #include "erl_ptab.h"
+#include "erl_time.h"
 #ifdef HIPE
 #include "hipe_arch.h"
 #endif
@@ -88,9 +90,7 @@ static char erts_system_version[] = ("Erlang/OTP " ERLANG_OTP_RELEASE
 				     " [64-bit]"
 #endif
 				     " [smp:%beu:%beu]"
-#if defined(ERTS_DIRTY_SCHEDULERS)
 				     " [ds:%beu:%beu:%beu]"
-#endif
 #if defined(ERTS_DIRTY_SCHEDULERS_TEST)
 				     " [dirty-schedulers-TEST]"
 #endif
@@ -98,9 +98,6 @@ static char erts_system_version[] = ("Erlang/OTP " ERLANG_OTP_RELEASE
 #ifdef HIPE
 				     " [hipe]"
 #endif	
-#ifdef ERTS_ENABLE_KERNEL_POLL
-				     " [kernel-poll:%s]"
-#endif	
 #ifdef ET_DEBUG
 #if ET_DEBUG
 				     " [type-assertions]"
@@ -370,13 +367,8 @@ erts_print_system_version(fmtfn_t to, void *arg, Process *c_p)
     return erts_print(to, arg, erts_system_version,
 		      rc_str
 		      , total, online
-#ifdef ERTS_DIRTY_SCHEDULERS
 		      , dirty_cpu, dirty_cpu_onln, dirty_io
-#endif
 		      , erts_async_max_threads
-#ifdef ERTS_ENABLE_KERNEL_POLL
-		      , erts_use_kernel_poll ? "true" : "false"
-#endif
 	);
 }
 
@@ -2130,11 +2122,6 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
 	ASSERT(erts_compat_rel > 0);
 	BIF_RET(make_small(erts_compat_rel));
     } else if (BIF_ARG_1 == am_multi_scheduling) {
-#ifndef ERTS_DIRTY_SCHEDULERS
-	if (erts_no_schedulers == 1)
-	    BIF_RET(am_disabled);
-	else
-#endif
 	{
 	    int msb = erts_is_multi_scheduling_blocked();
 	    BIF_RET(!msb
@@ -2673,27 +2660,15 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
 	BIF_RET(make_small(active));
     } else if (ERTS_IS_ATOM_STR("dirty_cpu_schedulers", BIF_ARG_1)) {
 	Uint dirty_cpu;
-#ifdef ERTS_DIRTY_SCHEDULERS
 	erts_schedulers_state(NULL, NULL, NULL, &dirty_cpu, NULL, NULL, NULL, NULL);
-#else
-        dirty_cpu = 0;
-#endif
 	BIF_RET(make_small(dirty_cpu));
     } else if (ERTS_IS_ATOM_STR("dirty_cpu_schedulers_online", BIF_ARG_1)) {
 	Uint dirty_cpu_onln;
-#ifdef ERTS_DIRTY_SCHEDULERS
 	erts_schedulers_state(NULL, NULL, NULL, NULL, &dirty_cpu_onln, NULL, NULL, NULL);
-#else
-        dirty_cpu_onln = 0;
-#endif
 	BIF_RET(make_small(dirty_cpu_onln));
     } else if (ERTS_IS_ATOM_STR("dirty_io_schedulers", BIF_ARG_1)) {
 	Uint dirty_io;
-#ifdef ERTS_DIRTY_SCHEDULERS
 	erts_schedulers_state(NULL, NULL, NULL, NULL, NULL, NULL, &dirty_io, NULL);
-#else
-        dirty_io = 0;
-#endif
 	BIF_RET(make_small(dirty_io));
     } else if (ERTS_IS_ATOM_STR("run_queues", BIF_ARG_1)) {
 	res = make_small(erts_no_run_queues);
@@ -2715,7 +2690,7 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
 	BIF_RET(make_small(CONTEXT_REDS));
     } else if (ERTS_IS_ATOM_STR("kernel_poll", BIF_ARG_1)) {
 #ifdef ERTS_ENABLE_KERNEL_POLL
-	BIF_RET(erts_use_kernel_poll ? am_true : am_false);
+	BIF_RET(am_true);
 #else
 	BIF_RET(am_false);
 #endif    
@@ -2868,7 +2843,7 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
 	BIF_RET(am_disabled);
     }
     else if (ERTS_IS_ATOM_STR("eager_check_io",BIF_ARG_1)) {
-	BIF_RET(erts_eager_check_io ? am_true : am_false);
+	BIF_RET(am_true);
     }
     else if (ERTS_IS_ATOM_STR("literal_test",BIF_ARG_1)) {
 #ifdef ERTS_HAVE_IS_IN_LITERAL_RANGE
@@ -3467,7 +3442,7 @@ BIF_RETTYPE statistics_1(BIF_ALIST_1)
 	ErtsMonotonicTime u1, u2;
 	Eterm b1, b2;
         Uint hsz;
-	elapsed_time_both(&u1, NULL, &u2, NULL);
+	erts_runtime_elapsed_both(&u1, NULL, &u2, NULL);
         hsz = 3; /* 2-tuple */
         (void) erts_bld_monotonic_time(NULL, &hsz, u1);
         (void) erts_bld_monotonic_time(NULL, &hsz, u2);
@@ -3483,7 +3458,7 @@ BIF_RETTYPE statistics_1(BIF_ALIST_1)
 	ErtsMonotonicTime w1, w2;
 	Eterm b1, b2;
         Uint hsz;
-	wall_clock_elapsed_time_both(&w1, &w2);
+	erts_wall_clock_elapsed_both(&w1, &w2);
         hsz = 3; /* 2-tuple */
         (void) erts_bld_monotonic_time(NULL, &hsz, w1);
         (void) erts_bld_monotonic_time(NULL, &hsz, w2);
@@ -3600,8 +3575,8 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
 						   (Uint) ciodi.no_used_fds),
 				     erts_bld_uint(hpp, szp,
 						   (Uint) ciodi.no_driver_select_structs),
-				     erts_bld_uint(hpp, szp,
-						   (Uint) ciodi.no_driver_event_structs));
+                                     erts_bld_uint(hpp, szp,
+                                                   (Uint) ciodi.no_enif_select_structs));
 		if (hpp)
 		    break;
 		hp = HAlloc(BIF_P, sz);
@@ -3699,6 +3674,12 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
 		Eterm *hp = HAlloc(BIF_P, hsz);
 		BIF_RET(uword_to_big(size, hp));
 	    }
+        } else if (ERTS_IS_ATOM_STR("scheduler_dump", BIF_ARG_1)) {
+#if defined(ERTS_HAVE_TRY_CATCH) && defined(ERTS_SYS_SUSPEND_SIGNAL)
+            BIF_RET(am_true);
+#else
+            BIF_RET(am_false);
+#endif
         }
     }
     else if (is_tuple(BIF_ARG_1)) {
@@ -3750,7 +3731,6 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
 			subres = make_link_list(BIF_P, dep->nlinks, NIL);
 			subres = make_link_list(BIF_P, dep->node_links, subres);
 			erts_de_links_unlock(dep);
-			erts_deref_dist_entry(dep);
 			BIF_RET(subres);
 		    } else {
 			BIF_RET(am_undefined);
@@ -3781,7 +3761,6 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
 			erts_de_links_lock(dep);
 			ml = make_monitor_list(BIF_P, dep->monitors);
 			erts_de_links_unlock(dep);
-			erts_deref_dist_entry(dep);
 			BIF_RET(ml);
 		    } else {
 			BIF_RET(am_undefined);
@@ -3796,7 +3775,6 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
 		else {
 		    Uint cno = dist_entry_channel_no(dep);
 		    res = make_small(cno);
-		    erts_deref_dist_entry(dep);
 		}
 		BIF_RET(res);
 	    }
@@ -3858,15 +3836,14 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
 			       DFLAG_BIT_BINARIES);
 		BIF_RET(erts_term_to_binary(BIF_P, tp[2], 0, dflags));
 	    }
-	    else if (ERTS_IS_ATOM_STR("dist_port", tp[1])) {
+	    else if (ERTS_IS_ATOM_STR("dist_ctrl", tp[1])) {
 		Eterm res = am_undefined;
 		DistEntry *dep = erts_sysname_to_connected_dist_entry(tp[2]);
 		if (dep) {
 		    erts_de_rlock(dep);
-		    if (is_internal_port(dep->cid))
+		    if (is_internal_port(dep->cid) || is_internal_pid(dep->cid))
 			res = dep->cid;
 		    erts_de_runlock(dep);
-		    erts_deref_dist_entry(dep);
 		}
 		BIF_RET(res);
 	    }
@@ -4275,7 +4252,6 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2)
 		con_id = dep->connection_id;
 		erts_de_runlock(dep);
 		erts_kill_dist_connection(dep, con_id);
-		erts_deref_dist_entry(dep);
 		BIF_RET(am_true);
 	    }
 	}
diff --git a/erts/emulator/beam/erl_bif_os.c b/erts/emulator/beam/erl_bif_os.c
index 5cd172c26f..910325a2f4 100644
--- a/erts/emulator/beam/erl_bif_os.c
+++ b/erts/emulator/beam/erl_bif_os.c
@@ -37,6 +37,8 @@
 #include "dist.h"
 #include "erl_version.h"
 
+static int check_env_name(char *name);
+
 /*
  * Return the pid for the Erlang process in the host OS.
  */
@@ -101,8 +103,10 @@ BIF_RETTYPE os_getenv_1(BIF_ALIST_1)
     key_str = erts_convert_filename_to_native(BIF_ARG_1,buf,STATIC_BUF_SIZE,
 					      ERTS_ALC_T_TMP,1,0,&len);
 
-    if (!key_str) {
-	BIF_ERROR(p, BADARG);
+    if (!check_env_name(key_str)) {
+        if (key_str && key_str != &buf[0])
+            erts_free(ERTS_ALC_T_TMP, key_str);
+        BIF_ERROR(p, BADARG);
     }
 
     if (key_str != &buf[0])
@@ -143,25 +147,20 @@ BIF_RETTYPE os_putenv_2(BIF_ALIST_2)
 {
     char def_buf_key[STATIC_BUF_SIZE];
     char def_buf_value[STATIC_BUF_SIZE];
-    char *key_buf, *value_buf;
+    char *key_buf = NULL, *value_buf = NULL;
 
     key_buf = erts_convert_filename_to_native(BIF_ARG_1,def_buf_key,
 					      STATIC_BUF_SIZE,
 					      ERTS_ALC_T_TMP,0,0,NULL);
-    if (!key_buf) {
-	BIF_ERROR(BIF_P, BADARG);
-    }
+    if (!check_env_name(key_buf))
+        goto badarg;
+
     value_buf = erts_convert_filename_to_native(BIF_ARG_2,def_buf_value,
 						STATIC_BUF_SIZE,
 						ERTS_ALC_T_TMP,1,0,
 						NULL);
-    if (!value_buf) {
-	if (key_buf != def_buf_key) {
-	    erts_free(ERTS_ALC_T_TMP, key_buf);
-	}
-	BIF_ERROR(BIF_P, BADARG);
-    }
-	    
+    if (!value_buf)
+        goto badarg;
 
     if (erts_sys_putenv(key_buf, value_buf)) {
 	if (key_buf != def_buf_key) {
@@ -179,6 +178,13 @@ BIF_RETTYPE os_putenv_2(BIF_ALIST_2)
 	erts_free(ERTS_ALC_T_TMP, value_buf);
     }
     BIF_RET(am_true);
+
+badarg:
+    if (key_buf && key_buf != def_buf_key)
+	erts_free(ERTS_ALC_T_TMP, key_buf);
+    if (value_buf && value_buf != def_buf_value)
+	erts_free(ERTS_ALC_T_TMP, value_buf);
+    BIF_ERROR(BIF_P, BADARG);
 }
 
 BIF_RETTYPE os_unsetenv_1(BIF_ALIST_1)
@@ -188,20 +194,21 @@ BIF_RETTYPE os_unsetenv_1(BIF_ALIST_1)
 
     key_buf = erts_convert_filename_to_native(BIF_ARG_1,buf,STATIC_BUF_SIZE,
 					      ERTS_ALC_T_TMP,0,0,NULL);
-    if (!key_buf) {
-	BIF_ERROR(BIF_P, BADARG);
-    }
+    if (!check_env_name(key_buf))
+        goto badarg;
+
+    if (erts_sys_unsetenv(key_buf))
+        goto badarg;
 
-    if (erts_sys_unsetenv(key_buf)) {
-	if (key_buf != buf) {
-	    erts_free(ERTS_ALC_T_TMP, key_buf);
-	}
-	BIF_ERROR(BIF_P, BADARG);
-    }
     if (key_buf != buf) {
 	erts_free(ERTS_ALC_T_TMP, key_buf);
     }
     BIF_RET(am_true);
+
+badarg:
+    if (key_buf && key_buf != buf)
+        erts_free(ERTS_ALC_T_TMP, key_buf);
+    BIF_ERROR(BIF_P, BADARG);    
 }
 
 BIF_RETTYPE os_set_signal_2(BIF_ALIST_2) {
@@ -217,3 +224,27 @@ BIF_RETTYPE os_set_signal_2(BIF_ALIST_2) {
 error:
     BIF_ERROR(BIF_P, BADARG);
 }
+
+static int
+check_env_name(char *raw_name)
+{
+    byte *c = (byte *) raw_name;
+    int encoding;
+
+    if (!c)
+        return 0;
+    
+    encoding = erts_get_native_filename_encoding();
+
+    if (erts_raw_env_char_is_7bit_ascii_char('\0', c, encoding))
+        return 0; /* Do not allow empty name... */
+
+    /* Verify no '=' characters in variable name... */
+    do {
+        if (erts_raw_env_char_is_7bit_ascii_char('=', c, encoding))
+            return 0;
+        c = erts_raw_env_next_char(c, encoding);
+    } while (!erts_raw_env_char_is_7bit_ascii_char('\0', c, encoding));
+
+    return 1; /* Seems ok... */
+}
diff --git a/erts/emulator/beam/erl_bif_port.c b/erts/emulator/beam/erl_bif_port.c
index 4b73be55c6..c4a4dd5863 100644
--- a/erts/emulator/beam/erl_bif_port.c
+++ b/erts/emulator/beam/erl_bif_port.c
@@ -45,7 +45,7 @@
 #include "dtrace-wrapper.h"
 
 static Port *open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump);
-static byte* convert_environment(Process* p, Eterm env);
+static char* convert_environment(Eterm env);
 static char **convert_args(Eterm);
 static void free_args(char **);
 
@@ -718,11 +718,11 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump)
 			goto badarg;
 		    }
 		} else if (option == am_env) {
-		    byte* bytes;
-		    if ((bytes = convert_environment(p, *tp)) == NULL) {
+                    if (opts.envir) /* ignore previous env option... */
+                        erts_free(ERTS_ALC_T_OPEN_PORT_ENV, opts.envir);
+                    opts.envir = convert_environment(*tp);
+                    if (!opts.envir)
 			goto badarg;
-		    }
-		    opts.envir = (char *) bytes;
 		} else if (option == am_args) {
 		    char **av;
 		    char **oav = opts.argv;
@@ -956,6 +956,8 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump)
 	erts_atomic32_read_bor_relb(&port->state, sflgs);
  
  do_return:
+    if (opts.envir)
+        erts_free(ERTS_ALC_T_OPEN_PORT_ENV, opts.envir);
     if (name_buf)
 	erts_free(ERTS_ALC_T_TMP, (void *) name_buf);
     if (opts.argv) {
@@ -1021,74 +1023,129 @@ static void free_args(char **av)
     }
     erts_free(ERTS_ALC_T_TMP, av);
 }
-    
 
-static byte* convert_environment(Process* p, Eterm env)
+#ifdef DEBUG
+#define ERTS_CONV_ENV_BUF_EXTRA 2
+#else
+#define ERTS_CONV_ENV_BUF_EXTRA 1024
+#endif
+
+static char* convert_environment(Eterm env)
 {
-    Eterm all;
-    Eterm* temp_heap;
-    Eterm* hp;
-    Uint heap_size;
-    Sint n;
-    Sint size;
+    /*
+     * Returns environment buffer in memory allocated
+     * as ERTS_ALC_T_OPEN_PORT_ENV. Caller *needs*
+     * to deallocate...
+     */
+
+    Sint size, alloc_size;
     byte* bytes;
     int encoding = erts_get_native_filename_encoding();
 
-    if ((n = erts_list_length(env)) < 0) {
-	return NULL;
-    }
-    heap_size = 2*(5*n+1);
-    temp_heap = hp = (Eterm *) erts_alloc(ERTS_ALC_T_TMP, heap_size*sizeof(Eterm));
-    bytes = NULL;		/* Indicating error */
+    alloc_size = ERTS_CONV_ENV_BUF_EXTRA;
+    bytes = erts_alloc(ERTS_ALC_T_OPEN_PORT_ENV,
+                       alloc_size);
+    size = 0;
 
-    /*
-     * All errors below are handled by jumping to 'done', to ensure that the memory
-     * gets deallocated. Do NOT return directly from this function.
-     */
+    /* ERTS_CONV_ENV_BUF_EXTRA >= for end delimiter... */
+    ERTS_CT_ASSERT(ERTS_CONV_ENV_BUF_EXTRA >= 2);
 
-    all = CONS(hp, make_small(0), NIL);
-    hp += 2;
+    while (is_list(env)) {
+        Sint var_sz, val_sz, need;
+        byte *str, *limit;
+	Eterm tmp, *tp, *consp;
 
-    while(is_list(env)) {
-	Eterm tmp;
-	Eterm* tp;
+        consp = list_val(env);
+	tmp = CAR(consp);
+	if (is_not_tuple_arity(tmp, 2))
+	    goto error;
 
-	tmp = CAR(list_val(env));
-	if (is_not_tuple_arity(tmp, 2)) {
-	    goto done;
-	}
 	tp = tuple_val(tmp);
-	tmp = CONS(hp, make_small(0), NIL);
-	hp += 2;
-	if (tp[2] != am_false) {
-	    tmp = CONS(hp, tp[2], tmp);
-	    hp += 2;
-	}
-	tmp = CONS(hp, make_small('='), tmp);
-	hp += 2;
-	tmp = CONS(hp, tp[1], tmp);
-	hp += 2;
-	all = CONS(hp, tmp, all);
-	hp += 2;
-	env = CDR(list_val(env));
-    }
-    if (is_not_nil(env)) {
-	goto done;
-    }
 
-    if ((size = erts_native_filename_need(all,encoding)) < 0) {
-	goto done;
+        /* Check encoding of env variable... */
+        if (is_not_list(tp[1]))
+            goto error;
+        var_sz = erts_native_filename_need(tp[1], encoding);
+        if (var_sz <= 0)
+            goto error;
+        /* Check encoding of value... */
+        if (tp[2] == am_false || is_nil(tp[2]))
+            val_sz = 0;
+        else if (is_not_list(tp[2]))
+            goto error;
+        else {
+            val_sz = erts_native_filename_need(tp[2], encoding);
+            if (val_sz < 0)
+                goto error;
+        }
+
+        /* Ensure enough memory... */
+        need = size;
+        need += var_sz + val_sz;
+        /* '=' and '\0' */
+        need += 2 * erts_raw_env_7bit_ascii_char_need(encoding);
+        if (need > alloc_size) {
+            alloc_size = (need - alloc_size) + alloc_size;
+            alloc_size += ERTS_CONV_ENV_BUF_EXTRA;
+            bytes = erts_realloc(ERTS_ALC_T_OPEN_PORT_ENV,
+                                 bytes, alloc_size);
+        }
+
+        /* Write environment variable name... */
+        str = bytes + size;
+        erts_native_filename_put(tp[1], encoding, str);
+        /* empty variable name is not allowed... */
+        if (erts_raw_env_char_is_7bit_ascii_char('\0', str, encoding))
+            goto error;
+
+        /*
+         * Drop null characters at the end and verify that we do
+         * not have any '=' characters in the name...
+         */
+        limit = str + var_sz;
+        while (str < limit) {
+            if (erts_raw_env_char_is_7bit_ascii_char('\0', str, encoding))
+                break;
+            if (erts_raw_env_char_is_7bit_ascii_char('=', str, encoding))
+                goto error;
+            str = erts_raw_env_next_char(str, encoding);
+        }
+
+        /* Write the equals sign... */
+        str = erts_raw_env_7bit_ascii_char_put('=', str, encoding);
+
+        /* Write the value... */
+        if (val_sz > 0) {
+            limit = str + val_sz;
+            erts_native_filename_put(tp[2], encoding, str);
+            while (str < limit) {
+                if (erts_raw_env_char_is_7bit_ascii_char('\0', str, encoding))
+                    break;
+                str = erts_raw_env_next_char(str, encoding);
+            }
+        }
+
+        /* Delimit... */
+        str = erts_raw_env_7bit_ascii_char_put('\0', str, encoding);
+
+        size = str - bytes;
+        ASSERT(size <= alloc_size);
+
+        env = CDR(consp);
     }
 
-    /*
-     * Put the result in a binary (no risk for a memory leak that way).
-     */
-    (void) erts_new_heap_binary(p, NULL, size, &bytes);
-    erts_native_filename_put(all,encoding,bytes);
+    /* End delimit... */
+    (void) erts_raw_env_7bit_ascii_char_put('\0', &bytes[size], encoding);
+
+    if (is_nil(env))
+        return (char *) bytes;
+
+error:
+
+    if (bytes)
+        erts_free(ERTS_ALC_T_OPEN_PORT_ENV, bytes);
 
- done:
-    erts_free(ERTS_ALC_T_TMP, temp_heap);
-    return bytes;
+    return (char *) NULL; /* error... */
 }
 
 /* ------------ decode_packet() and friends: */
diff --git a/erts/emulator/beam/erl_bif_trace.c b/erts/emulator/beam/erl_bif_trace.c
index b02f966558..22942b40c4 100644
--- a/erts/emulator/beam/erl_bif_trace.c
+++ b/erts/emulator/beam/erl_bif_trace.c
@@ -966,12 +966,12 @@ static int function_is_traced(Process *p,
     if ((ep = export_get(&e)) != NULL) {
 	pc = ep->beam;
 	if (ep->addressv[erts_active_code_ix()] == pc &&
-	    *pc != (BeamInstr) em_call_error_handler) {
+	    ! BeamIsOpCode(*pc, op_call_error_handler)) {
 
 	    int r = 0;
 
-	    ASSERT(*pc == (BeamInstr) em_apply_bif ||
-		   *pc == (BeamInstr) BeamOp(op_i_generic_breakpoint));
+	    ASSERT(BeamIsOpCode(*pc, op_apply_bif) ||
+		   BeamIsOpCode(*pc, op_i_generic_breakpoint));
 
 	    if (erts_is_trace_break(&ep->info, ms, 0)) {
 		return FUNC_TRACE_GLOBAL_TRACE;
@@ -1043,16 +1043,12 @@ trace_info_func(Process* p, Eterm func_spec, Eterm key)
 	erts_proc_unlock(p, ERTS_PROC_LOCK_MAIN);
 	erts_thr_progress_block();
     }
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_mtx_lock(&erts_dirty_bp_ix_mtx);
-#endif
 
 
     r = function_is_traced(p, mfa, &ms, &ms_meta, &meta, &count, &call_time);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_mtx_unlock(&erts_dirty_bp_ix_mtx);
-#endif
     if ( (key == am_call_time) || (key == am_all)) {
 	erts_thr_progress_unblock();
 	erts_proc_lock(p, ERTS_PROC_LOCK_MAIN);
@@ -1365,14 +1361,14 @@ erts_set_trace_pattern(Process*p, ErtsCodeMFA *mfa, int specified,
 	    if (ep->addressv[code_ix] != pc) {
 		fp[i].mod->curr.num_traced_exports++;
 #ifdef DEBUG
-		ep->info.op = (BeamInstr) BeamOp(op_i_func_info_IaaI);
+		ep->info.op = BeamOpCodeAddr(op_i_func_info_IaaI);
 #endif
-                ep->beam[0] = (BeamInstr) BeamOp(op_jump_f);
+                ep->beam[0] = BeamOpCodeAddr(op_trace_jump_W);
 		ep->beam[1] = (BeamInstr) ep->addressv[code_ix];
 	    }
 	    erts_set_call_trace_bif(ci, match_prog_set, 0);
 	    if (ep->addressv[code_ix] != pc) {
-		ep->beam[0] = (BeamInstr) BeamOp(op_i_generic_breakpoint);
+		ep->beam[0] = BeamOpCodeAddr(op_i_generic_breakpoint);
 	    }
 	} else if (!on && flags.breakpoint) {
 	    /* Turn off breakpoint tracing -- nothing to do here. */
@@ -1382,8 +1378,8 @@ erts_set_trace_pattern(Process*p, ErtsCodeMFA *mfa, int specified,
 	     * before turning on breakpoint tracing.
 	     */
 	    erts_clear_call_trace_bif(ci, 0);
-	    if (ep->beam[0] == (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
-		ep->beam[0] = (BeamInstr) BeamOp(op_jump_f);
+	    if (BeamIsOpCode(ep->beam[0], op_i_generic_breakpoint)) {
+		ep->beam[0] = BeamOpCodeAddr(op_trace_jump_W);
 	    }
 	}
     }
@@ -1675,7 +1671,7 @@ uninstall_exp_breakpoints(BpFunctions* f)
 	if (ep->addressv[code_ix] != ep->beam) {
 	    continue;
 	}
-	ASSERT(ep->beam[0] == (BeamInstr) BeamOp(op_jump_f));
+	ASSERT(BeamIsOpCode(ep->beam[0], op_trace_jump_W));
 	ep->addressv[code_ix] = (BeamInstr *) ep->beam[1];
     }
 }
@@ -1694,7 +1690,7 @@ clean_export_entries(BpFunctions* f)
 	if (ep->addressv[code_ix] == ep->beam) {
 	    continue;
 	}
-	if (ep->beam[0] == (BeamInstr) BeamOp(op_jump_f)) {
+	if (BeamIsOpCode(ep->beam[0], op_trace_jump_W)) {
 	    ep->beam[0] = (BeamInstr) 0;
 	    ep->beam[1] = (BeamInstr) 0;
 	}
diff --git a/erts/emulator/beam/erl_bif_unique.c b/erts/emulator/beam/erl_bif_unique.c
index aa79503819..19d46537f9 100644
--- a/erts/emulator/beam/erl_bif_unique.c
+++ b/erts/emulator/beam/erl_bif_unique.c
@@ -77,11 +77,9 @@ init_reference(void)
     ref_init_value += (Uint64) tv.tv_usec;
 #ifdef DEBUG
     max_thr_id = (Uint32) erts_no_schedulers;
-#ifdef ERTS_DIRTY_SCHEDULERS
     max_thr_id += (Uint32) erts_no_dirty_cpu_schedulers;
     max_thr_id += (Uint32) erts_no_dirty_io_schedulers;
 #endif
-#endif
     erts_atomic64_init_nob(&global_reference.count,
 			   (erts_aint64_t) ref_init_value);
     init_magic_ref_tables();
@@ -439,10 +437,8 @@ init_unique_integer(void)
 {
     int bits;
     unique_data.r.o.val0_max = (Uint64) erts_no_schedulers;
-#ifdef ERTS_DIRTY_SCHEDULERS
     unique_data.r.o.val0_max += (Uint64) erts_no_dirty_cpu_schedulers;
     unique_data.r.o.val0_max += (Uint64) erts_no_dirty_io_schedulers;
-#endif
     bits = erts_fit_in_bits_int64(unique_data.r.o.val0_max);
     unique_data.r.o.left_shift = bits;
     unique_data.r.o.right_shift = 64 - bits;
diff --git a/erts/emulator/beam/erl_bits.c b/erts/emulator/beam/erl_bits.c
index 637c7467b2..3a16913473 100644
--- a/erts/emulator/beam/erl_bits.c
+++ b/erts/emulator/beam/erl_bits.c
@@ -32,15 +32,6 @@
 #include "erl_bits.h"
 #include "erl_binary.h"
 
-#ifdef MAX
-#undef MAX
-#endif
-#define MAX(x,y) (((x)>(y))?(x):(y))
-#ifdef MIN
-#undef MIN
-#endif
-#define MIN(x,y) (((x)<(y))?(x):(y))
-
 #if defined(WORDS_BIGENDIAN)
 # define BIT_ENDIAN_MACHINE 0
 #else
diff --git a/erts/emulator/beam/erl_cpu_topology.c b/erts/emulator/beam/erl_cpu_topology.c
index 49f9beb19f..6f8d2f8c35 100644
--- a/erts/emulator/beam/erl_cpu_topology.c
+++ b/erts/emulator/beam/erl_cpu_topology.c
@@ -602,7 +602,7 @@ write_schedulers_bind_change(erts_cpu_topology_t *cpudata, int size)
 
 	cpu_bind_order_sort(cpudata, size, cpu_bind_order, 1);
 
-	for (cpu_ix = 0; cpu_ix < size && cpu_ix < erts_no_schedulers; cpu_ix++)
+	for (cpu_ix = 0; cpu_ix < size && s_ix <= erts_no_schedulers; cpu_ix++)
 	    if (erts_is_cpu_available(cpuinfo, cpudata[cpu_ix].logical))
 		scheduler2cpu_map[s_ix++].bind_id = cpudata[cpu_ix].logical;
     }
diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c
index a21b9b9c0c..3ba0886464 100644
--- a/erts/emulator/beam/erl_db.c
+++ b/erts/emulator/beam/erl_db.c
@@ -3550,14 +3550,8 @@ static SWord proc_cleanup_fixed_table(Process* p, DbFixation* fix)
 	    ASSERT(sizeof(DbFixation) == ERTS_ALC_DBG_BLK_SZ(fix));
 	    ERTS_DB_ALC_MEM_UPDATE_(tb, sizeof(DbFixation), 0);
 	}
-	else {
-	    ASSERT(fix->counter == 0);
-	}
 	db_unlock(tb, LCK_WRITE_REC);
     }
-    else {
-	ASSERT(fix->counter == 0);
-    }
 
     erts_bin_release(fix->tabs.btid);
     erts_free(ERTS_ALC_T_DB_FIXATION, fix);
@@ -3785,11 +3779,8 @@ static void free_fixations_op(DbFixation* fix, void* vctx)
 {
     struct free_fixations_ctx* ctx = (struct free_fixations_ctx*) vctx;
     erts_aint_t diff;
-#ifdef DEBUG
-    DbTable* dbg_tb = btid2tab(fix->tabs.btid);
-#endif
 
-    ASSERT(!dbg_tb || dbg_tb == ctx->tb);
+    ASSERT(!btid2tab(fix->tabs.btid));
     ASSERT(fix->counter > 0);
     ASSERT(ctx->tb->common.status & DB_DELETE);
 
diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c
index 25072ede97..5d49b2ea14 100644
--- a/erts/emulator/beam/erl_db_hash.c
+++ b/erts/emulator/beam/erl_db_hash.c
@@ -269,9 +269,6 @@ static ERTS_INLINE Sint next_slot_w(DbTableHash* tb, Uint ix,
     return ix;
 }
 
-#ifndef MIN
-#define MIN(X, Y) ((X) < (Y) ? (X) : (Y))
-#endif
 
 /*
  * Some special binary flags
diff --git a/erts/emulator/beam/erl_db_tree.c b/erts/emulator/beam/erl_db_tree.c
index 038f6602bf..5a276b9d88 100644
--- a/erts/emulator/beam/erl_db_tree.c
+++ b/erts/emulator/beam/erl_db_tree.c
@@ -85,9 +85,6 @@
 
 #define EMPTY_NODE(Dtt) (TOP_NODE(Dtt) == NULL)
 
-#ifndef MIN
-#define MIN(X, Y) ((X) < (Y) ? (X) : (Y))
-#endif
 
 /* Obtain table static stack if available. NULL if not.
 ** Must be released with release_stack()
diff --git a/erts/emulator/beam/erl_db_util.h b/erts/emulator/beam/erl_db_util.h
index 1c99b661e4..6b126f35d6 100644
--- a/erts/emulator/beam/erl_db_util.h
+++ b/erts/emulator/beam/erl_db_util.h
@@ -220,6 +220,9 @@ typedef struct db_fixation {
         Process* p;
     } procs;
 
+    /* Number of fixations on table from procs.p
+     * Protected by table write lock or read lock + fixlock
+     */
     Uint counter;
 } DbFixation;
 
diff --git a/erts/emulator/beam/erl_driver.h b/erts/emulator/beam/erl_driver.h
index 0e8ebf0c98..d5379a40d5 100644
--- a/erts/emulator/beam/erl_driver.h
+++ b/erts/emulator/beam/erl_driver.h
@@ -40,7 +40,6 @@
 #include "erl_drv_nif.h"
 
 #include <stdlib.h>
-#include <sys/types.h>	/* ssize_t */
 
 #if defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_)
 #ifndef STATIC_ERLANG_DRIVER
@@ -48,24 +47,6 @@
 #define ERL_DRIVER_TYPES_ONLY
 #define WIN32_DYNAMIC_ERL_DRIVER
 #endif
-/*
- * This structure can be cast to a WSABUF structure.
- */
-typedef struct _SysIOVec {
-    unsigned long iov_len;
-    char* iov_base;
-} SysIOVec;
-#else  /* Unix */
-#  ifdef HAVE_SYS_UIO_H
-#    include <sys/types.h>
-#    include <sys/uio.h>
-typedef struct iovec SysIOVec;
-#  else
-typedef struct {
-    char* iov_base;
-    size_t iov_len;
-} SysIOVec;
-#  endif
 #endif
 
 #ifndef EXTERN
@@ -167,14 +148,6 @@ typedef struct _erl_drv_event* ErlDrvEvent; /* An event to be selected on. */
 typedef struct _erl_drv_port* ErlDrvPort; /* A port descriptor. */
 typedef struct _erl_drv_port* ErlDrvThreadData; /* Thread data. */
 
-#if !defined(__WIN32__) && !defined(_WIN32) && !defined(_WIN32_) && !defined(USE_SELECT)
-struct erl_drv_event_data {
-    short events;
-    short revents;
-};
-#endif
-typedef struct erl_drv_event_data *ErlDrvEventData; /* Event data */
-
 typedef struct {
     unsigned long megasecs;
     unsigned long secs;
@@ -289,10 +262,7 @@ typedef struct erl_drv_entry {
 			 unsigned int *flags); /* Works mostly like 'control',
 						  a synchronous
 						  call into the driver. */
-    void (*event)(ErlDrvData drv_data, ErlDrvEvent event,
-		  ErlDrvEventData event_data);
-                                /* Called when an event selected by 
-				   driver_event() has occurred */
+    void (*unused_event_callback)(void);
     int extended_marker;	/* ERL_DRV_EXTENDED_MARKER */
     int major_version;		/* ERL_DRV_EXTENDED_MAJOR_VERSION */
     int minor_version;		/* ERL_DRV_EXTENDED_MINOR_VERSION */
@@ -359,8 +329,6 @@ EXTERN void erl_drv_busy_msgq_limits(ErlDrvPort port,
 				     ErlDrvSizeT *high);
 
 EXTERN int driver_select(ErlDrvPort port, ErlDrvEvent event, int mode, int on);
-EXTERN int driver_event(ErlDrvPort port, ErlDrvEvent event, 
-			ErlDrvEventData event_data);
 
 EXTERN int driver_output(ErlDrvPort port, char *buf, ErlDrvSizeT len);
 EXTERN int driver_output2(ErlDrvPort port, char *hbuf, ErlDrvSizeT hlen,
diff --git a/erts/emulator/beam/erl_drv_nif.h b/erts/emulator/beam/erl_drv_nif.h
index f88138063e..31b4817fb1 100644
--- a/erts/emulator/beam/erl_drv_nif.h
+++ b/erts/emulator/beam/erl_drv_nif.h
@@ -144,8 +144,25 @@ typedef signed int ErlNapiSInt;
 #define ERTS_NAPI_USEC__	2
 #define ERTS_NAPI_NSEC__	3
 
-#endif  /* __ERL_DRV_NIF_H__ */
-
-
-
+#if (defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_))
+/*
+ * This structure can be cast to a WSABUF structure.
+ */
+typedef struct _SysIOVec {
+    unsigned long iov_len;
+    char* iov_base;
+} SysIOVec;
+#else  /* Unix */
+#  include <sys/types.h>
+#  ifdef HAVE_SYS_UIO_H
+#    include <sys/uio.h>
+typedef struct iovec SysIOVec;
+#  else
+typedef struct {
+    char* iov_base;
+    size_t iov_len;
+} SysIOVec;
+#  endif
+#endif
 
+#endif  /* __ERL_DRV_NIF_H__ */
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index bc3bcdc9ad..97a1ca915f 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -183,12 +183,10 @@ typedef struct {
     erts_atomic32_t refc;
 } ErtsGCInfoReq;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 static struct {
     erts_mtx_t mtx;
     ErtsGCInfo info;
 } dirty_gc;
-#endif
 
 static ERTS_INLINE int
 gc_cost(Uint gc_moved_live_words, Uint resize_moved_words)
@@ -273,11 +271,9 @@ erts_init_gc(void)
       init_gc_info(&esdp->gc_info);
     }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_mtx_init(&dirty_gc.mtx, "dirty_gc_info", NIL,
         ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_GENERIC);
     init_gc_info(&dirty_gc.info);
-#endif
 
     init_gcireq_alloc();
 }
@@ -341,7 +337,7 @@ erts_heap_sizes(Process* p)
 
     for (i = num_heap_sizes-1; i >= 0; i--) {
 	n += 2;
-	if (!MY_IS_SSMALL(heap_sizes[i])) {
+	if (!IS_SSMALL(heap_sizes[i])) {
 	    big += BIG_UINT_HEAP_SIZE;
 	}
     }
@@ -356,7 +352,7 @@ erts_heap_sizes(Process* p)
 	Eterm num;
 	Sint sz = heap_sizes[i];
 
-	if (MY_IS_SSMALL(sz)) {
+	if (IS_SSMALL(sz)) {
 	    num = make_small(sz);
 	} else {
 	    num = uint_to_big(sz, bigp);
@@ -481,12 +477,10 @@ delay_garbage_collection(Process *p, ErlHeapFragment *live_hf_end, int need, int
     }
 
     if (need == 0) {
-#ifdef ERTS_DIRTY_SCHEDULERS
         if (p->flags & (F_DIRTY_MAJOR_GC|F_DIRTY_MINOR_GC)) {
             ASSERT(!ERTS_SCHEDULER_IS_DIRTY(erts_proc_sched_data(p)));
             goto force_reschedule;
         }
-#endif
 	return 1;
     }
     /*
@@ -541,9 +535,7 @@ delay_garbage_collection(Process *p, ErlHeapFragment *live_hf_end, int need, int
     p->heap_hfrag = hfrag;
 #endif
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 force_reschedule:
-#endif
 
     /* Make sure that we do a proper GC as soon as possible... */
     p->flags |= F_FORCE_GC;
@@ -616,7 +608,6 @@ young_gen_usage(Process *p)
 	}							\
     } while (0)
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 static ERTS_INLINE void
 check_for_possibly_long_gc(Process *p, Uint ygen_usage)
@@ -640,7 +631,6 @@ check_for_possibly_long_gc(Process *p, Uint ygen_usage)
     }
 }
 
-#endif
 
 /*
  * Garbage collect a process.
@@ -675,21 +665,17 @@ garbage_collect(Process* p, ErlHeapFragment *live_hf_end,
     state = erts_atomic32_read_nob(&p->state);
 
     if ((p->flags & (F_DISABLE_GC|F_DELAY_GC)) || state & ERTS_PSFLG_EXITING) {
-#ifdef ERTS_DIRTY_SCHEDULERS
     delay_gc_before_start:
-#endif
 	return delay_garbage_collection(p, live_hf_end, need, fcalls);
     }
 
     ygen_usage = max_young_gen_usage ? max_young_gen_usage : young_gen_usage(p);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
 	check_for_possibly_long_gc(p, ygen_usage);
 	if (p->flags & (F_DIRTY_MAJOR_GC|F_DIRTY_MINOR_GC))
 	    goto delay_gc_before_start;
     }
-#endif
 
     if (p->abandoned_heap)
 	live_hf_end = ERTS_INVALID_HFRAG_PTR;
@@ -731,14 +717,12 @@ garbage_collect(Process* p, ErlHeapFragment *live_hf_end,
             if (IS_TRACED_FL(p, F_TRACE_GC)) {
                 trace_gc(p, am_gc_minor_end, reclaimed_now, THE_NON_VALUE);
             }
-#ifdef ERTS_DIRTY_SCHEDULERS
 	    if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
 		p->flags |= F_NEED_FULLSWEEP;
 		check_for_possibly_long_gc(p, ygen_usage);
 		if (p->flags & F_DIRTY_MAJOR_GC)
 		    goto delay_gc_after_start;
 	    }
-#endif
             goto do_major_collection;
         }
         if (ERTS_SCHEDULER_IS_DIRTY(esdp))
@@ -784,9 +768,7 @@ do_major_collection:
                               am_kill, NIL, NULL, 0);
         erts_proc_unlock(p, locks & ERTS_PROC_LOCKS_ALL_MINOR);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     delay_gc_after_start:
-#endif
         /* erts_send_exit_signal looks for ERTS_PSFLG_GC, so
            we have to remove it after the signal is sent */
         erts_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC);
@@ -821,7 +803,6 @@ do_major_collection:
 	    monitor_large_heap(p);
     }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (ERTS_SCHEDULER_IS_DIRTY(esdp)) {
 	erts_mtx_lock(&dirty_gc.mtx);
 	dirty_gc.info.garbage_cols++;
@@ -829,7 +810,6 @@ do_major_collection:
 	erts_mtx_unlock(&dirty_gc.mtx);
     }
     else
-#endif
     {
 	esdp->gc_info.garbage_cols++;
 	esdp->gc_info.reclaimed += reclaimed_now;
@@ -907,7 +887,6 @@ garbage_collect_hibernate(Process* p, int check_long_gc)
     if (p->flags & F_DISABLE_GC)
 	ERTS_INTERNAL_ERROR("GC disabled");
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (ERTS_SCHEDULER_IS_DIRTY(erts_proc_sched_data(p)))
         p->flags &= ~(F_DIRTY_GC_HIBERNATE|F_DIRTY_MAJOR_GC|F_DIRTY_MINOR_GC);
     else if (check_long_gc) {
@@ -920,7 +899,6 @@ garbage_collect_hibernate(Process* p, int check_long_gc)
 	}
 	p->flags = flags;
     }
-#endif
     /*
      * Preliminaries.
      */
@@ -1110,7 +1088,6 @@ erts_garbage_collect_literals(Process* p, Eterm* literals,
 
     p->flags |= F_NEED_FULLSWEEP;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (ERTS_SCHEDULER_IS_DIRTY(erts_proc_sched_data(p)))
 	p->flags &= ~F_DIRTY_CLA;
     else {
@@ -1126,7 +1103,6 @@ erts_garbage_collect_literals(Process* p, Eterm* literals,
 	    return 10;
 	}
     }
-#endif
 
     reds = (Sint64) garbage_collect(p, ERTS_INVALID_HFRAG_PTR, 0,
 				    p->arg_reg, p->arity, fcalls,
@@ -3230,7 +3206,6 @@ reply_gc_info(void *vgcirp)
 
     reclaimed = esdp->gc_info.reclaimed;
     garbage_cols = esdp->gc_info.garbage_cols;
-#ifdef ERTS_DIRTY_SCHEDULERS
     /*
      * Add dirty schedulers info on requesting
      * schedulers info
@@ -3241,7 +3216,6 @@ reply_gc_info(void *vgcirp)
 	garbage_cols += dirty_gc.info.garbage_cols;
 	erts_mtx_unlock(&dirty_gc.mtx);
     }
-#endif
 
     sz = 0;
     hpp = NULL;
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index 34affaa015..6cef9bd0e3 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -49,6 +49,7 @@
 #include "erl_bif_unique.h"
 #define ERTS_WANT_TIMER_WHEEL_API
 #include "erl_time.h"
+#include "erl_check_io.h"
 
 #ifdef HIPE
 #include "hipe_mode_switch.h"	/* for hipe_mode_switch_init() */
@@ -76,8 +77,10 @@ const char etp_otp_release[] = ERLANG_OTP_RELEASE;
 const char etp_compile_date[] = ERLANG_COMPILE_DATE;
 const char etp_arch[] = ERLANG_ARCHITECTURE;
 #ifdef ERTS_ENABLE_KERNEL_POLL
+const int erts_use_kernel_poll = 1;
 const int etp_kernel_poll_support = 1;
 #else
+const int erts_use_kernel_poll = 0;
 const int etp_kernel_poll_support = 0;
 #endif
 #if defined(ARCH_64)
@@ -180,11 +183,9 @@ int erts_compat_rel;
 
 static int no_schedulers;
 static int no_schedulers_online;
-#ifdef ERTS_DIRTY_SCHEDULERS
 static int no_dirty_cpu_schedulers;
 static int no_dirty_cpu_schedulers_online;
 static int no_dirty_io_schedulers;
-#endif
 
 #ifdef DEBUG
 Uint32 verbose;             /* See erl_debug.h for information about verbose */
@@ -205,16 +206,16 @@ int erts_no_line_info = 0;	/* -L: Don't load line information */
  */
 
 ErtsModifiedTimings erts_modified_timings[] = {
-    /* 0 */	{make_small(0), CONTEXT_REDS, INPUT_REDUCTIONS},
-    /* 1 */	{make_small(0), (3*CONTEXT_REDS)/4, 2*INPUT_REDUCTIONS},
-    /* 2 */	{make_small(0), CONTEXT_REDS/2, INPUT_REDUCTIONS/2},
-    /* 3 */	{make_small(0), (7*CONTEXT_REDS)/8, 3*INPUT_REDUCTIONS},
-    /* 4 */	{make_small(0), CONTEXT_REDS/3, 3*INPUT_REDUCTIONS},
-    /* 5 */	{make_small(0), (10*CONTEXT_REDS)/11, INPUT_REDUCTIONS/2},
-    /* 6 */	{make_small(1), CONTEXT_REDS/4, 2*INPUT_REDUCTIONS},
-    /* 7 */	{make_small(1), (5*CONTEXT_REDS)/7, INPUT_REDUCTIONS/3},
-    /* 8 */	{make_small(10), CONTEXT_REDS/5, 3*INPUT_REDUCTIONS},
-    /* 9 */	{make_small(10), (6*CONTEXT_REDS)/7, INPUT_REDUCTIONS/4}
+    /* 0 */	{make_small(0), CONTEXT_REDS},
+    /* 1 */	{make_small(0), (3*CONTEXT_REDS)/4},
+    /* 2 */	{make_small(0), CONTEXT_REDS/2},
+    /* 3 */	{make_small(0), (7*CONTEXT_REDS)/8},
+    /* 4 */	{make_small(0), CONTEXT_REDS/3},
+    /* 5 */	{make_small(0), (10*CONTEXT_REDS)/11},
+    /* 6 */	{make_small(1), CONTEXT_REDS/4},
+    /* 7 */	{make_small(1), (5*CONTEXT_REDS)/7},
+    /* 8 */	{make_small(10), CONTEXT_REDS/5},
+    /* 9 */	{make_small(10), (6*CONTEXT_REDS)/7}
 };
 
 #define ERTS_MODIFIED_TIMING_LEVELS \
@@ -312,12 +313,11 @@ erl_init(int ncpu,
     erts_init_sys_common_misc();
     erts_init_process(ncpu, proc_tab_sz, legacy_proc_tab);
     erts_init_scheduling(no_schedulers,
-			 no_schedulers_online
-#ifdef ERTS_DIRTY_SCHEDULERS
-			 , no_dirty_cpu_schedulers,
+			 no_schedulers_online,
+                         erts_no_poll_threads,
+			 no_dirty_cpu_schedulers,
 			 no_dirty_cpu_schedulers_online,
 			 no_dirty_io_schedulers
-#endif
 			 );
     erts_late_init_time_sup();
     erts_init_cpu_topology(); /* Must be after init_scheduling */
@@ -562,9 +562,19 @@ void erts_usage(void)
     erts_fprintf(stderr, "-hmqd  val     set default message queue data flag for processes,\n");
     erts_fprintf(stderr, "               valid values are: off_heap | on_heap\n");
 
+    erts_fprintf(stderr, "-IOp number    set number of pollsets to be used to poll for I/O,\n");
+    erts_fprintf(stderr, "               This value has to be equal or smaller than the\n");
+    erts_fprintf(stderr, "               number of poll threads. If the current platform\n");
+    erts_fprintf(stderr, "               does not support concurrent update of pollsets\n");
+    erts_fprintf(stderr, "               this value is ignored.\n");
+    erts_fprintf(stderr, "-IOt number    set number of threads to be used to poll for I/O\n");
+    erts_fprintf(stderr, "-IOPp number   set number of pollsets as a percentage of the\n");
+    erts_fprintf(stderr, "               number of poll threads.");
+    erts_fprintf(stderr, "-IOPt number   set number of threads to be used to poll for I/O\n");
+    erts_fprintf(stderr, "               as a percentage of the number of schedulers.");
+
     /*    erts_fprintf(stderr, "-i module  set the boot module (default init)\n"); */
 
-    erts_fprintf(stderr, "-K boolean     enable or disable kernel poll\n");
     erts_fprintf(stderr, "-n[s|a|d]      Control behavior of signals to ports\n");
     erts_fprintf(stderr, "               Note that this flag is deprecated!\n");
     erts_fprintf(stderr, "-M<X> <Y>      memory allocator switches,\n");
@@ -609,7 +619,6 @@ void erts_usage(void)
 		 ERTS_SCHED_THREAD_MIN_STACK_SIZE,
 		 ERTS_SCHED_THREAD_MAX_STACK_SIZE,
                  ERTS_DEFAULT_SCHED_STACK_SIZE);
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_fprintf(stderr, "-sssdcpu size  suggested stack size in kilo words for dirty CPU scheduler\n");
     erts_fprintf(stderr, "               threads, valid range is [%d-%d] (default %d)\n",
 		 ERTS_SCHED_THREAD_MIN_STACK_SIZE,
@@ -620,7 +629,6 @@ void erts_usage(void)
 		 ERTS_SCHED_THREAD_MIN_STACK_SIZE,
 		 ERTS_SCHED_THREAD_MAX_STACK_SIZE,
                  ERTS_DEFAULT_DIO_SCHED_STACK_SIZE);
-#endif
     erts_fprintf(stderr, "-spp Bool      set port parallelism scheduling hint\n");
     erts_fprintf(stderr, "-S n1:n2       set number of schedulers (n1), and number of\n");
     erts_fprintf(stderr, "               schedulers online (n2), maximum for both\n");
@@ -629,7 +637,6 @@ void erts_usage(void)
     erts_fprintf(stderr, "-SP p1:p2      specify schedulers (p1) and schedulers online (p2)\n");
     erts_fprintf(stderr, "               as percentages of logical processors configured and logical\n");
     erts_fprintf(stderr, "               processors available, respectively\n");
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_fprintf(stderr, "-SDcpu n1:n2   set number of dirty CPU schedulers (n1), and number of\n");
     erts_fprintf(stderr, "               dirty CPU schedulers online (n2), valid range for both\n");
     erts_fprintf(stderr, "               numbers is [1-%d], and n2 must be less than or equal to n1\n",
@@ -639,7 +646,6 @@ void erts_usage(void)
     erts_fprintf(stderr, "               and logical processors available, respectively\n");
     erts_fprintf(stderr, "-SDio n        set number of dirty I/O schedulers, valid range is [0-%d]\n",
 		 ERTS_MAX_NO_OF_DIRTY_IO_SCHEDULERS);
-#endif
     erts_fprintf(stderr, "-t size        set the maximum number of atoms the emulator can handle\n");
     erts_fprintf(stderr, "               valid range is [%d-%d]\n",
 		 MIN_ATOM_TABLE_SIZE, MAX_ATOM_TABLE_SIZE);
@@ -725,19 +731,16 @@ early_init(int *argc, char **argv) /*
     int schdlrs_percentage = 100;
     int schdlrs_onln_percentage = 100;
     int max_main_threads;
-#ifdef ERTS_DIRTY_SCHEDULERS
     int dirty_cpu_scheds;
     int dirty_cpu_scheds_online;
     int dirty_cpu_scheds_pctg = 100;
     int dirty_cpu_scheds_onln_pctg = 100;
     int dirty_io_scheds;
-#endif
     int max_reader_groups;
     int reader_groups;
     char envbuf[21]; /* enough for any 64-bit integer */
     size_t envbufsz;
 
-
     erts_save_emu_args(*argc, argv);
 
     erts_sched_compact_load = 1;
@@ -794,11 +797,9 @@ early_init(int *argc, char **argv) /*
     schdlrs = no_schedulers;
     schdlrs_onln = no_schedulers_online;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     dirty_cpu_scheds = no_schedulers;
     dirty_cpu_scheds_online = no_schedulers_online;
     dirty_io_scheds = 10;
-#endif
 
     envbufsz = sizeof(envbuf);
 
@@ -851,6 +852,7 @@ early_init(int *argc, char **argv) /*
 		    }
 		    break;
 		}
+
 		case 'S' :
 		    if (argv[i][2] == 'P') {
 			int ptot, ponln;
@@ -891,7 +893,6 @@ early_init(int *argc, char **argv) /*
                                 ("using %d:%d scheduler percentages\n",
                                  schdlrs_percentage, schdlrs_onln_percentage));
                     }
-#ifdef ERTS_DIRTY_SCHEDULERS
 		    else if (argv[i][2] == 'D') {
 			char *arg;
 			char *type = argv[i]+3;
@@ -1003,7 +1004,6 @@ early_init(int *argc, char **argv) /*
 			    break;
 			}
 		    }
-#endif
 		    else {
 			int tot, onln;
 			char *arg = get_arg(argv[i]+2, argv[i+1], &i);
@@ -1085,7 +1085,6 @@ early_init(int *argc, char **argv) /*
 		erts_usage();
 	    }
 	}
-#ifdef ERTS_DIRTY_SCHEDULERS
 	/* apply any dirty scheduler precentages */
 	if (dirty_cpu_scheds_pctg != 100 || dirty_cpu_scheds_onln_pctg != 100) {
 	    dirty_cpu_scheds = dirty_cpu_scheds * dirty_cpu_scheds_pctg / 100;
@@ -1099,7 +1098,6 @@ early_init(int *argc, char **argv) /*
 	    dirty_cpu_scheds_online = schdlrs_onln;
 	if (dirty_cpu_scheds_online < 1)
 	    dirty_cpu_scheds_online = 1;
-#endif
     }
 
 
@@ -1107,17 +1105,18 @@ early_init(int *argc, char **argv) /*
     no_schedulers_online = schdlrs_onln;
 
     erts_no_schedulers = (Uint) no_schedulers;
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_no_dirty_cpu_schedulers = no_dirty_cpu_schedulers = dirty_cpu_scheds;
     no_dirty_cpu_schedulers_online = dirty_cpu_scheds_online;
     erts_no_dirty_io_schedulers = no_dirty_io_schedulers = dirty_io_scheds;
-#endif
     erts_early_init_scheduling(no_schedulers);
 
     alloc_opts.ncpu = ncpu;
     erts_alloc_init(argc, argv, &alloc_opts); /* Handles (and removes)
 						 -M flags. */
     /* Require allocators */
+
+    erts_init_check_io(argc, argv);
+
     /*
      * Thread progress management:
      *
@@ -1125,20 +1124,17 @@ early_init(int *argc, char **argv) /*
      * ** Scheduler threads (see erl_process.c)
      * ** Aux thread (see erl_process.c)
      * ** Sys message dispatcher thread (see erl_trace.c)
+     * ** IO Poll threads (see erl_check_io.c)
      *
      * * Unmanaged threads that need to register:
      * ** Async threads (see erl_async.c)
      * ** Dirty scheduler threads
      */
     erts_thr_progress_init(no_schedulers,
-			   no_schedulers+2,
-#ifndef ERTS_DIRTY_SCHEDULERS
-			   erts_async_max_threads
-#else
+			   no_schedulers+2+erts_no_poll_threads,
 			   erts_async_max_threads +
 			   erts_no_dirty_cpu_schedulers +
 			   erts_no_dirty_io_schedulers
-#endif
 			   );
     erts_thr_q_init();
     erts_init_utils();
@@ -1237,10 +1233,8 @@ erl_start(int argc, char **argv)
      * a lot of stack.
      */
     erts_sched_thread_suggested_stack_size = ERTS_DEFAULT_SCHED_STACK_SIZE;
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_dcpu_sched_thread_suggested_stack_size = ERTS_DEFAULT_DCPU_SCHED_STACK_SIZE;
     erts_dio_sched_thread_suggested_stack_size = ERTS_DEFAULT_DIO_SCHED_STACK_SIZE;
-#endif
 
 #ifdef DEBUG
     verbose = DEBUG_DEFAULT;
@@ -1585,16 +1579,6 @@ erl_start(int argc, char **argv)
 	    have_break_handler = 0;
 	  break;
 
-	case 'K':
-	    /* If kernel poll support is present,
-	       erl_sys_args() will remove the K parameter
-	       and value */
-	    get_arg(argv[i]+2, argv[i+1], &i);
-	    erts_fprintf(stderr,
-		       "kernel-poll not supported; \"K\" parameter ignored\n",
-		       arg);
-	    break;
-
 	case 'n':
 	    arg = get_arg(argv[i]+2, argv[i+1], &i);
 	    switch (arg[0]) {
@@ -1764,22 +1748,9 @@ erl_start(int argc, char **argv)
 		    erts_usage();
 		}
 	    }
-	    else if (has_prefix("ecio", sub_param)) {
-		arg = get_arg(sub_param+4, argv[i+1], &i);
-#ifndef __OSE__
-		if (sys_strcmp("true", arg) == 0)
-		    erts_eager_check_io = 1;
-		else
-#endif
-		if (sys_strcmp("false", arg) == 0)
-		    erts_eager_check_io = 0;
-		else {
-		    erts_fprintf(stderr,
-				 "bad schedule eager check I/O value '%s'\n",
-				 arg);
-		    erts_usage();
-		}
-	    }
+            else if (has_prefix("ecio", sub_param)) {
+                /* ignore argument, eager check io no longer used */
+            }
 	    else if (has_prefix("pp", sub_param)) {
 		arg = get_arg(sub_param+2, argv[i+1], &i);
 		if (sys_strcmp(arg, "true") == 0)
@@ -1855,7 +1826,6 @@ erl_start(int argc, char **argv)
 		VERBOSE(DEBUG_SYSTEM,
 			("scheduler wakeup threshold: %s\n", arg));
 	    }
-#ifdef ERTS_DIRTY_SCHEDULERS
 	    else if (has_prefix("ssdcpu", sub_param)) {
 		/* suggested stack size (Kilo Words) for dirty CPU scheduler threads */
 		arg = get_arg(sub_param+6, argv[i+1], &i);
@@ -1890,7 +1860,6 @@ erl_start(int argc, char **argv)
 			("suggested dirty IO scheduler thread stack size %d kilo words\n",
 			 erts_dio_sched_thread_suggested_stack_size));
 	    }
-#endif
 	    else if (has_prefix("ss", sub_param)) {
 		/* suggested stack size (Kilo Words) for scheduler threads */
 		arg = get_arg(sub_param+2, argv[i+1], &i);
@@ -2205,12 +2174,10 @@ erl_start(int argc, char **argv)
 
     if (erts_sched_thread_suggested_stack_size < ERTS_SCHED_THREAD_MIN_STACK_SIZE)
         erts_sched_thread_suggested_stack_size = ERTS_SCHED_THREAD_MIN_STACK_SIZE;
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (erts_dcpu_sched_thread_suggested_stack_size < ERTS_SCHED_THREAD_MIN_STACK_SIZE)
         erts_dcpu_sched_thread_suggested_stack_size = ERTS_SCHED_THREAD_MIN_STACK_SIZE;
     if (erts_dio_sched_thread_suggested_stack_size < ERTS_SCHED_THREAD_MIN_STACK_SIZE)
         erts_dio_sched_thread_suggested_stack_size = ERTS_SCHED_THREAD_MIN_STACK_SIZE;
-#endif
 
     erl_init(ncpu,
 	     proc_tab_sz,
@@ -2255,7 +2222,6 @@ erl_start(int argc, char **argv)
 	       && erts_literal_area_collector->common.id == pid);
 	erts_proc_inc_refc(erts_literal_area_collector);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 	pid = erl_system_process_otp(otp_ring0_pid, "erts_dirty_process_code_checker", !0);
 	erts_dirty_process_code_checker
 	    = (Process *) erts_ptab_pix2intptr_ddrb(&erts_proc,
@@ -2263,7 +2229,6 @@ erl_start(int argc, char **argv)
 	ASSERT(erts_dirty_process_code_checker
 	       && erts_dirty_process_code_checker->common.id == pid);
 	erts_proc_inc_refc(erts_dirty_process_code_checker);
-#endif
 
     }
 
diff --git a/erts/emulator/beam/erl_io_queue.c b/erts/emulator/beam/erl_io_queue.c
new file mode 100644
index 0000000000..190ba6bbb9
--- /dev/null
+++ b/erts/emulator/beam/erl_io_queue.c
@@ -0,0 +1,1231 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2017. All Rights Reserved.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * %CopyrightEnd%
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include "sys.h"
+#include "global.h"
+
+#define ERL_WANT_HIPE_BIF_WRAPPER__
+#include "bif.h"
+#undef ERL_WANT_HIPE_BIF_WRAPPER__
+
+#include "erl_bits.h"
+#include "erl_io_queue.h"
+
+#define IOL2V_SMALL_BIN_LIMIT (ERL_ONHEAP_BIN_LIMIT * 4)
+
+static void free_binary(ErtsIOQBinary *b, int driver);
+static ErtsIOQBinary *alloc_binary(Uint size, char *source, void **iov_base, int driver);
+
+void erts_ioq_init(ErtsIOQueue *q, ErtsAlcType_t alct, int driver)
+{
+
+    ERTS_CT_ASSERT(offsetof(ErlNifIOVec,flags) == sizeof(ErtsIOVecCommon));
+    ERTS_CT_ASSERT(sizeof(ErlIOVec) == sizeof(ErtsIOVecCommon));
+    ERTS_CT_ASSERT(sizeof(size_t) == sizeof(ErlDrvSizeT));
+    ERTS_CT_ASSERT(sizeof(size_t) == sizeof(Uint));
+
+    q->alct = alct;
+    q->driver = driver;
+    q->size = 0;
+    q->v_head = q->v_tail = q->v_start = q->v_small;
+    q->v_end = q->v_small + ERTS_SMALL_IO_QUEUE;
+    q->b_head = q->b_tail = q->b_start = q->b_small;
+    q->b_end = q->b_small + ERTS_SMALL_IO_QUEUE;
+}
+
+void erts_ioq_clear(ErtsIOQueue *q)
+{
+    ErtsIOQBinary** binp = q->b_head;
+    int driver = q->driver;
+
+    if (q->v_start != q->v_small)
+	erts_free(q->alct, (void *) q->v_start);
+
+    while(binp < q->b_tail) {
+	if (*binp != NULL)
+            free_binary(*binp, driver);
+	binp++;
+    }
+    if (q->b_start != q->b_small)
+	erts_free(q->alct, (void *) q->b_start);
+    q->v_start = q->v_end = q->v_head = q->v_tail = NULL;
+    q->b_start = q->b_end = q->b_head = q->b_tail = NULL;
+    q->size = 0;
+}
+
+static void free_binary(ErtsIOQBinary *b, int driver)
+{
+    if (driver)
+        driver_free_binary(&b->driver);
+    else if (erts_refc_dectest(&b->nif.intern.refc, 0) == 0)
+        erts_bin_free(&b->nif);
+}
+
+static ErtsIOQBinary *alloc_binary(Uint size, char *source, void **iov_base, int driver)
+{
+    if (driver) {
+        ErlDrvBinary *bin = driver_alloc_binary(size);
+        if (!bin) return NULL;
+        sys_memcpy(bin->orig_bytes, source, size);
+        *iov_base = bin->orig_bytes;
+        return (ErtsIOQBinary *)bin;
+    } else {
+        /* This clause can be triggered in enif_ioq_enq_binary is used */
+        Binary *bin = erts_bin_nrml_alloc(size);
+        if (!bin) return NULL;
+        erts_refc_init(&bin->intern.refc, 1);
+        sys_memcpy(bin->orig_bytes, source, size);
+        *iov_base = bin->orig_bytes;
+        return (ErtsIOQBinary *)bin;
+    }
+}
+
+Uint erts_ioq_size(ErtsIOQueue *q)
+{
+    return q->size;
+}
+
+/* expand queue to hold n elements in tail or head */
+static int expandq(ErtsIOQueue* q, int n, int tail)
+/* tail: 0 if make room in head, make room in tail otherwise */
+{
+    int h_sz;  /* room before header */
+    int t_sz;  /* room after tail */
+    int q_sz;  /* occupied */
+    int nvsz;
+    SysIOVec* niov;
+    ErtsIOQBinary** nbinv;
+
+    h_sz = q->v_head - q->v_start;
+    t_sz = q->v_end -  q->v_tail;
+    q_sz = q->v_tail - q->v_head;
+
+    if (tail && (n <= t_sz)) /* do we need to expand tail? */
+	return 0;
+    else if (!tail && (n <= h_sz))  /* do we need to expand head? */
+	return 0;
+    else if (n > (h_sz + t_sz)) { /* need to allocate */
+	/* we may get little extra but it ok */
+	nvsz = (q->v_end - q->v_start) + n;
+
+	niov = erts_alloc_fnf(q->alct, nvsz * sizeof(SysIOVec));
+	if (!niov)
+	    return -1;
+	nbinv = erts_alloc_fnf(q->alct, nvsz * sizeof(ErtsIOQBinary**));
+	if (!nbinv) {
+	    erts_free(q->alct, (void *) niov);
+	    return -1;
+	}
+	if (tail) {
+	    sys_memcpy(niov, q->v_head, q_sz*sizeof(SysIOVec));
+	    if (q->v_start != q->v_small)
+		erts_free(q->alct, (void *) q->v_start);
+	    q->v_start = niov;
+	    q->v_end = niov + nvsz;
+	    q->v_head = q->v_start;
+	    q->v_tail = q->v_head + q_sz;
+
+	    sys_memcpy(nbinv, q->b_head, q_sz*sizeof(ErtsIOQBinary*));
+	    if (q->b_start != q->b_small)
+		erts_free(q->alct, (void *) q->b_start);
+	    q->b_start = nbinv;
+	    q->b_end = nbinv + nvsz;
+	    q->b_head = q->b_start;
+	    q->b_tail = q->b_head + q_sz;
+	}
+	else {
+	    sys_memcpy(niov+nvsz-q_sz, q->v_head, q_sz*sizeof(SysIOVec));
+	    if (q->v_start != q->v_small)
+		erts_free(q->alct, (void *) q->v_start);
+	    q->v_start = niov;
+	    q->v_end = niov + nvsz;
+	    q->v_tail = q->v_end;
+	    q->v_head = q->v_tail - q_sz;
+
+	    sys_memcpy(nbinv+nvsz-q_sz, q->b_head, q_sz*sizeof(ErtsIOQBinary*));
+	    if (q->b_start != q->b_small)
+		erts_free(q->alct, (void *) q->b_start);
+	    q->b_start = nbinv;
+	    q->b_end = nbinv + nvsz;
+	    q->b_tail = q->b_end;
+	    q->b_head = q->b_tail - q_sz;
+	}
+    }
+    else if (tail) {  /* move to beginning to make room in tail */
+	sys_memmove(q->v_start, q->v_head, q_sz*sizeof(SysIOVec));
+	q->v_head = q->v_start;
+	q->v_tail = q->v_head + q_sz;
+	sys_memmove(q->b_start, q->b_head, q_sz*sizeof(ErtsIOQBinary*));
+	q->b_head = q->b_start;
+	q->b_tail = q->b_head + q_sz;
+    }
+    else {   /* move to end to make room */
+	sys_memmove(q->v_end-q_sz, q->v_head, q_sz*sizeof(SysIOVec));
+	q->v_tail = q->v_end;
+	q->v_head = q->v_tail-q_sz;
+	sys_memmove(q->b_end-q_sz, q->b_head, q_sz*sizeof(ErtsIOQBinary*));
+	q->b_tail = q->b_end;
+	q->b_head = q->b_tail-q_sz;
+    }
+
+    return 0;
+}
+
+static
+int skip(ErtsIOVec* vec, Uint skipbytes,
+         SysIOVec **iovp, ErtsIOQBinary ***binvp,
+         Uint *lenp)
+{
+    int n;
+    Uint len;
+    SysIOVec* iov;
+    ErtsIOQBinary** binv;
+
+    if (vec->common.size <= skipbytes)
+	return -1;
+
+    iov = vec->common.iov;
+    binv = vec->common.binv;
+    n = vec->common.vsize;
+    /* we use do here to strip iov_len=0 from beginning */
+    do {
+	len = iov->iov_len;
+	if (len <= skipbytes) {
+	    skipbytes -= len;
+	    iov++;
+	    binv++;
+	    n--;
+	}
+	else {
+	    iov->iov_base = ((char *)(iov->iov_base)) + skipbytes;
+	    iov->iov_len -= skipbytes;
+	    skipbytes = 0;
+	}
+    } while(skipbytes > 0);
+
+    *binvp = binv;
+    *iovp = iov;
+    *lenp = len;
+
+    return n;
+}
+
+/* Put elements from vec at q tail */
+int erts_ioq_enqv(ErtsIOQueue *q, ErtsIOVec *eiov, Uint skipbytes)
+{
+    int n;
+    Uint len;
+    Uint size = eiov->common.size - skipbytes;
+    SysIOVec *iov;
+    ErtsIOQBinary** binv;
+    ErtsIOQBinary*  b;
+
+    if (q == NULL)
+	return -1;
+
+    ASSERT(eiov->common.size >= skipbytes);
+    if (eiov->common.size <= skipbytes)
+	return 0;
+
+    n = skip(eiov, skipbytes, &iov, &binv, &len);
+
+    if (n < 0)
+        return n;
+
+    if (q->v_tail + n >= q->v_end)
+	if (expandq(q, n, 1))
+            return -1;
+
+    /* Queue and reference all binaries (remove zero length items) */
+    while(n--) {
+	if ((len = iov->iov_len) > 0) {
+	    if ((b = *binv) == NULL) { /* special case create binary ! */
+		b = alloc_binary(len, iov->iov_base, (void**)&q->v_tail->iov_base,
+                                 q->driver);
+                if (!b) return -1;
+		*q->b_tail++ = b;
+		q->v_tail->iov_len = len;
+		q->v_tail++;
+	    }
+	    else {
+                if (q->driver)
+                    driver_binary_inc_refc(&b->driver);
+                else
+                    erts_refc_inc(&b->nif.intern.refc, 1);
+		*q->b_tail++ = b;
+		*q->v_tail++ = *iov;
+	    }
+	}
+	iov++;
+	binv++;
+    }
+    q->size += size;      /* update total size in queue */
+    return 0;
+}
+
+/* Put elements from vec at q head */
+int erts_ioq_pushqv(ErtsIOQueue *q, ErtsIOVec* vec, Uint skipbytes)
+{
+    int n;
+    Uint len;
+    Uint size = vec->common.size - skipbytes;
+    SysIOVec* iov;
+    ErtsIOQBinary** binv;
+    ErtsIOQBinary* b;
+
+    if (q == NULL)
+	return -1;
+
+    ASSERT(vec->common.size >= skipbytes);
+    if (vec->common.size <= skipbytes)
+	return 0;
+
+    n = skip(vec, skipbytes, &iov, &binv, &len);
+
+    if (n < 0)
+        return n;
+
+    if (q->v_head - n < q->v_start)
+	if (expandq(q, n, 0))
+            return -1;
+
+    /* Queue and reference all binaries (remove zero length items) */
+    iov += (n-1);  /* move to end */
+    binv += (n-1); /* move to end */
+    while(n--) {
+	if ((len = iov->iov_len) > 0) {
+	    if ((b = *binv) == NULL) { /* special case create binary ! */
+                if (q->driver) {
+                    ErlDrvBinary *bin = driver_alloc_binary(len);
+                    if (!bin) return -1;
+                    sys_memcpy(bin->orig_bytes, iov->iov_base, len);
+                    b = (ErtsIOQBinary *)bin;
+                    q->v_head->iov_base = bin->orig_bytes;
+                }
+		*--q->b_head = b;
+		q->v_head--;
+		q->v_head->iov_len = len;
+	    }
+	    else {
+                if (q->driver)
+                    driver_binary_inc_refc(&b->driver);
+                else
+                    erts_refc_inc(&b->nif.intern.refc, 1);
+		*--q->b_head = b;
+		*--q->v_head = *iov;
+	    }
+	}
+	iov--;
+	binv--;
+    }
+    q->size += size;      /* update total size in queue */
+    return 0;
+}
+
+
+/*
+** Remove size bytes from queue head
+** Return number of bytes that remain in queue
+*/
+int erts_ioq_deq(ErtsIOQueue *q, Uint size)
+{
+    Uint len;
+
+    if ((q == NULL) || (q->size < size))
+	return -1;
+    q->size -= size;
+    while (size > 0) {
+	ASSERT(q->v_head != q->v_tail);
+
+	len = q->v_head->iov_len;
+	if (len <= size) {
+	    size -= len;
+            free_binary(*q->b_head, q->driver);
+	    *q->b_head++ = NULL;
+	    q->v_head++;
+	}
+	else {
+	    q->v_head->iov_base = ((char *)(q->v_head->iov_base)) + size;
+	    q->v_head->iov_len -= size;
+	    size = 0;
+	}
+    }
+
+    /* restart pointers (optimised for enq) */
+    if (q->v_head == q->v_tail) {
+	q->v_head = q->v_tail = q->v_start;
+	q->b_head = q->b_tail = q->b_start;
+    }
+    return 0;
+}
+
+
+Uint erts_ioq_peekqv(ErtsIOQueue *q, ErtsIOVec *ev) {
+    ASSERT(ev);
+
+    if (! q) {
+	return (Uint) -1;
+    } else {
+	if ((ev->common.vsize = q->v_tail - q->v_head) == 0) {
+	    ev->common.size = 0;
+	    ev->common.iov = NULL;
+	    ev->common.binv = NULL;
+	} else {
+	    ev->common.size = q->size;
+	    ev->common.iov = q->v_head;
+	    ev->common.binv = q->b_head;
+	}
+	return q->size;
+    }
+}
+
+SysIOVec* erts_ioq_peekq(ErtsIOQueue *q, int* vlenp)  /* length of io-vector */
+{
+
+    if (q == NULL) {
+	*vlenp = -1;
+	return NULL;
+    }
+    if ((*vlenp = (q->v_tail - q->v_head)) == 0)
+	return NULL;
+    return q->v_head;
+}
+
+/* Fills a possibly deep list of chars and binaries into vec
+** Small characters are first stored in the buffer buf of length ln
+** binaries found are copied and linked into msoh
+** Return  vector length on succsess,
+**        -1 on overflow
+**        -2 on type error
+*/
+
+static ERTS_INLINE void
+io_list_to_vec_set_vec(SysIOVec **iov, ErtsIOQBinary ***binv,
+                       ErtsIOQBinary *bin, byte *ptr, Uint len,
+                       int *vlen)
+{
+    while (len > MAX_SYSIOVEC_IOVLEN) {
+        (*iov)->iov_base = ptr;
+        (*iov)->iov_len = MAX_SYSIOVEC_IOVLEN;
+        ptr += MAX_SYSIOVEC_IOVLEN;
+        len -= MAX_SYSIOVEC_IOVLEN;
+        (*iov)++;
+        (*vlen)++;
+        *(*binv)++ = bin;
+    }
+    (*iov)->iov_base = ptr;
+    (*iov)->iov_len = len;
+    *(*binv)++ = bin;
+    (*iov)++;
+    (*vlen)++;
+}
+
+int
+erts_ioq_iolist_to_vec(Eterm obj,	  /* io-list */
+                       SysIOVec* iov,	  /* io vector */
+                       ErtsIOQBinary** binv,       /* binary reference vector */
+                       ErtsIOQBinary* cbin,        /* binary to store characters */
+                       Uint bin_limit,  /* small binaries limit */
+                       int driver)
+{
+    DECLARE_ESTACK(s);
+    Eterm* objp;
+    byte *buf  = NULL;
+    Uint len = 0;
+    Uint csize  = 0;
+    int vlen   = 0;
+    byte* cptr;
+
+    if (cbin) {
+        if (driver) {
+            buf = (byte*)cbin->driver.orig_bytes;
+            len = cbin->driver.orig_size;
+        } else {
+            buf = (byte*)cbin->nif.orig_bytes;
+            len = cbin->nif.orig_size;
+        }
+    }
+    cptr = buf;
+
+    goto L_jump_start;  /* avoid push */
+
+    while (!ESTACK_ISEMPTY(s)) {
+	obj = ESTACK_POP(s);
+    L_jump_start:
+	if (is_list(obj)) {
+	L_iter_list:
+	    objp = list_val(obj);
+	    obj = CAR(objp);
+	    if (is_byte(obj)) {
+		if (len == 0)
+		    goto L_overflow;
+		*buf++ = unsigned_val(obj);
+		csize++;
+		len--;
+	    } else if (is_binary(obj)) {
+		ESTACK_PUSH(s, CDR(objp));
+		goto handle_binary;
+	    } else if (is_list(obj)) {
+		ESTACK_PUSH(s, CDR(objp));
+		goto L_iter_list;    /* on head */
+	    } else if (!is_nil(obj)) {
+		goto L_type_error;
+	    }
+	    obj = CDR(objp);
+	    if (is_list(obj))
+		goto L_iter_list; /* on tail */
+	    else if (is_binary(obj)) {
+		goto handle_binary;
+	    } else if (!is_nil(obj)) {
+		goto L_type_error;
+	    }
+	} else if (is_binary(obj)) {
+	    Eterm real_bin;
+	    Uint offset;
+	    Eterm* bptr;
+	    Uint size;
+	    int bitoffs;
+	    int bitsize;
+
+	handle_binary:
+	    size = binary_size(obj);
+	    ERTS_GET_REAL_BIN(obj, real_bin, offset, bitoffs, bitsize);
+	    ASSERT(bitsize == 0);
+	    bptr = binary_val(real_bin);
+	    if (*bptr == HEADER_PROC_BIN) {
+		ProcBin* pb = (ProcBin *) bptr;
+		if (bitoffs != 0) {
+		    if (len < size) {
+			goto L_overflow;
+		    }
+		    erts_copy_bits(pb->bytes+offset, bitoffs, 1,
+				   (byte *) buf, 0, 1, size*8);
+		    csize += size;
+		    buf += size;
+		    len -= size;
+		} else if (bin_limit && size < bin_limit) {
+		    if (len < size) {
+			goto L_overflow;
+		    }
+		    sys_memcpy(buf, pb->bytes+offset, size);
+		    csize += size;
+		    buf += size;
+		    len -= size;
+		} else {
+                    ErtsIOQBinary *qbin;
+		    if (csize != 0) {
+                        io_list_to_vec_set_vec(&iov, &binv, cbin,
+                                               cptr, csize, &vlen);
+			cptr = buf;
+			csize = 0;
+		    }
+		    if (pb->flags) {
+			erts_emasculate_writable_binary(pb);
+		    }
+                    if (driver)
+                        qbin = (ErtsIOQBinary*)Binary2ErlDrvBinary(pb->val);
+                    else
+                        qbin = (ErtsIOQBinary*)pb->val;
+
+                    io_list_to_vec_set_vec(
+                        &iov, &binv, qbin,
+                        pb->bytes+offset, size, &vlen);
+		}
+	    } else {
+		ErlHeapBin* hb = (ErlHeapBin *) bptr;
+		if (len < size) {
+		    goto L_overflow;
+		}
+		copy_binary_to_buffer(buf, 0,
+				      ((byte *) hb->data)+offset, bitoffs,
+				      8*size);
+		csize += size;
+		buf += size;
+		len -= size;
+	    }
+	} else if (!is_nil(obj)) {
+	    goto L_type_error;
+	}
+    }
+
+    if (csize != 0) {
+        io_list_to_vec_set_vec(&iov, &binv, cbin, cptr, csize, &vlen);
+    }
+
+    DESTROY_ESTACK(s);
+    return vlen;
+
+ L_type_error:
+    DESTROY_ESTACK(s);
+    return -2;
+
+ L_overflow:
+    DESTROY_ESTACK(s);
+    return -1;
+}
+
+static ERTS_INLINE int
+io_list_vec_count(Eterm obj, Uint *v_size,
+                  Uint *c_size, Uint *b_size, Uint *in_clist,
+                  Uint *p_v_size, Uint *p_c_size, Uint *p_in_clist,
+                  Uint blimit)
+{
+    Uint size = binary_size(obj);
+    Eterm real;
+    ERTS_DECLARE_DUMMY(Uint offset);
+    int bitoffs;
+    int bitsize;
+    ERTS_GET_REAL_BIN(obj, real, offset, bitoffs, bitsize);
+    if (bitsize != 0) return 1;
+    if (thing_subtag(*binary_val(real)) == REFC_BINARY_SUBTAG &&
+	bitoffs == 0) {
+	*b_size += size;
+        if (*b_size < size) return 2;
+	*in_clist = 0;
+        ++*v_size;
+        /* If iov_len is smaller then Uint we split the binary into*/
+        /* multiple smaller (2GB) elements in the iolist.*/
+	*v_size += size / MAX_SYSIOVEC_IOVLEN;
+        if (size >= blimit) {
+            *p_in_clist = 0;
+            ++*p_v_size;
+        } else {
+            *p_c_size += size;
+            if (!*p_in_clist) {
+                *p_in_clist = 1;
+                ++*p_v_size;
+            }
+        }
+    } else {
+	*c_size += size;
+        if (*c_size < size) return 2;
+	if (!*in_clist) {
+	    *in_clist = 1;
+	    ++*v_size;
+	}
+	*p_c_size += size;
+	if (!*p_in_clist) {
+	    *p_in_clist = 1;
+	    ++*p_v_size;
+	}
+    }
+    return 0;
+}
+
+#define IO_LIST_VEC_COUNT(obj)                                          \
+    do {                                                                \
+        switch (io_list_vec_count(obj, &v_size, &c_size,                \
+                                  &b_size, &in_clist,                   \
+                                  &p_v_size, &p_c_size, &p_in_clist,    \
+                                  blimit)) {                            \
+        case 1: goto L_type_error;                                      \
+        case 2: goto L_overflow_error;                                  \
+        default: break;                                                 \
+        }                                                               \
+    } while(0)
+
+/* 
+ * Returns 0 if successful and a non-zero value otherwise.
+ *
+ * Return values through pointers:
+ *    *vsize      - SysIOVec size needed for a writev
+ *    *csize      - Number of bytes not in binary (in the common binary)
+ *    *pvsize     - SysIOVec size needed if packing small binaries
+ *    *pcsize     - Number of bytes in the common binary if packing
+ *    *total_size - Total size of iolist in bytes
+ */
+int
+erts_ioq_iolist_vec_len(Eterm obj, int* vsize, Uint* csize,
+                        Uint* pvsize, Uint* pcsize,
+                        Uint* total_size, Uint blimit)
+{
+    DECLARE_ESTACK(s);
+    Eterm* objp;
+    Uint v_size = 0;
+    Uint c_size = 0;
+    Uint b_size = 0;
+    Uint in_clist = 0;
+    Uint p_v_size = 0;
+    Uint p_c_size = 0;
+    Uint p_in_clist = 0;
+    Uint total;
+
+    goto L_jump_start;  /* avoid a push */
+
+    while (!ESTACK_ISEMPTY(s)) {
+	obj = ESTACK_POP(s);
+    L_jump_start:
+	if (is_list(obj)) {
+	L_iter_list:
+	    objp = list_val(obj);
+	    obj = CAR(objp);
+
+	    if (is_byte(obj)) {
+		c_size++;
+		if (c_size == 0) {
+		    goto L_overflow_error;
+		}
+		if (!in_clist) {
+		    in_clist = 1;
+		    v_size++;
+		}
+		p_c_size++;
+		if (!p_in_clist) {
+		    p_in_clist = 1;
+		    p_v_size++;
+		}
+	    }
+	    else if (is_binary(obj)) {
+                IO_LIST_VEC_COUNT(obj);
+	    }
+	    else if (is_list(obj)) {
+		ESTACK_PUSH(s, CDR(objp));
+		goto L_iter_list;   /* on head */
+	    }
+	    else if (!is_nil(obj)) {
+		goto L_type_error;
+	    }
+
+	    obj = CDR(objp);
+	    if (is_list(obj))
+		goto L_iter_list;   /* on tail */
+	    else if (is_binary(obj)) {  /* binary tail is OK */
+		IO_LIST_VEC_COUNT(obj);
+	    }
+	    else if (!is_nil(obj)) {
+		goto L_type_error;
+	    }
+	}
+	else if (is_binary(obj)) {
+	    IO_LIST_VEC_COUNT(obj);
+	}
+	else if (!is_nil(obj)) {
+	    goto L_type_error;
+	}
+    }
+
+    total = c_size + b_size;
+    if (total < c_size) {
+	goto L_overflow_error;
+    }
+    *total_size = total;
+
+    DESTROY_ESTACK(s);
+    *vsize = v_size;
+    *csize = c_size;
+    *pvsize = p_v_size;
+    *pcsize = p_c_size;
+    return 0;
+
+ L_type_error:
+ L_overflow_error:
+    DESTROY_ESTACK(s);
+    return 1;
+}
+
+typedef struct {
+    Eterm result_head;
+    Eterm result_tail;
+    Eterm input_list;
+
+    UWord acc_size;
+    Binary *acc;
+
+    /* We yield after copying this many bytes into the accumulator (Minus
+     * eating a few on consing etc). Large binaries will only count to the
+     * extent their split (if any) resulted in a copy op. */
+    UWord bytereds_available;
+    UWord bytereds_spent;
+
+    Process *process;
+    ErtsEStack estack;
+
+    Eterm magic_reference;
+} iol2v_state_t;
+
+static int iol2v_state_destructor(Binary *data) {
+    iol2v_state_t *state = ERTS_MAGIC_BIN_UNALIGNED_DATA(data);
+
+    DESTROY_SAVED_ESTACK(&state->estack);
+
+    if (state->acc != NULL) {
+        erts_bin_free(state->acc);
+    }
+
+    return 1;
+}
+
+static void iol2v_init(iol2v_state_t *state, Process *process, Eterm input) {
+    state->process = process;
+
+    state->result_head = NIL;
+    state->result_tail = NIL;
+    state->input_list = input;
+
+    state->magic_reference = NIL;
+    state->acc_size = 0;
+    state->acc = NULL;
+
+    CLEAR_SAVED_ESTACK(&state->estack);
+}
+
+static Eterm iol2v_make_sub_bin(iol2v_state_t *state, Eterm bin_term,
+        UWord offset, UWord size) {
+    Uint byte_offset, bit_offset, bit_size;
+    ErlSubBin *sb;
+    Eterm orig_pb_term;
+
+    sb = (ErlSubBin*)HAlloc(state->process, ERL_SUB_BIN_SIZE);
+
+    ERTS_GET_REAL_BIN(bin_term, orig_pb_term,
+        byte_offset, bit_offset, bit_size);
+
+    (void)bit_offset;
+    (void)bit_size;
+
+    sb->thing_word = HEADER_SUB_BIN;
+    sb->bitsize = 0;
+    sb->bitoffs = 0;
+    sb->orig = orig_pb_term;
+    sb->is_writable = 0;
+
+    sb->offs = byte_offset + offset;
+    sb->size = size;
+
+    return make_binary(sb);
+}
+
+static Eterm iol2v_promote_acc(iol2v_state_t *state) {
+    ProcBin *pb;
+
+    state->acc = erts_bin_realloc(state->acc, state->acc_size);
+
+    pb = (ProcBin*)HAlloc(state->process, PROC_BIN_SIZE);
+    pb->thing_word = HEADER_PROC_BIN;
+    pb->size = state->acc_size;
+    pb->val = state->acc;
+    pb->bytes = (byte*)(state->acc)->orig_bytes;
+    pb->flags = 0;
+    pb->next = MSO(state->process).first;
+    OH_OVERHEAD(&(MSO(state->process)), pb->size / sizeof(Eterm));
+    MSO(state->process).first = (struct erl_off_heap_header*)pb;
+
+    state->acc_size = 0;
+    state->acc = NULL;
+
+    return make_binary(pb);
+}
+
+/* Destructively enqueues a term to the result list, saving us the hassle of
+ * having to reverse it later. This is safe since GC is disabled and we never
+ * leak the unfinished term to the outside. */
+static void iol2v_enqueue_result(iol2v_state_t *state, Eterm term) {
+    Eterm prev_tail;
+    Eterm *hp;
+
+    prev_tail = state->result_tail;
+
+    hp = HAlloc(state->process, 2);
+    state->result_tail = CONS(hp, term, NIL);
+
+    if(prev_tail != NIL) {
+        Eterm *prev_cell = list_val(prev_tail);
+        CDR(prev_cell) = state->result_tail;
+    } else {
+        state->result_head = state->result_tail;
+    }
+
+    state->bytereds_spent += 1;
+}
+
+#ifndef DEBUG
+    #define ACC_REALLOCATION_LIMIT (IOL2V_SMALL_BIN_LIMIT * 32)
+#else
+    #define ACC_REALLOCATION_LIMIT (IOL2V_SMALL_BIN_LIMIT * 4)
+#endif
+
+static void iol2v_expand_acc(iol2v_state_t *state, UWord extra) {
+    UWord required_bytes, acc_alloc_size;
+
+    ERTS_CT_ASSERT(ERTS_UWORD_MAX > ACC_REALLOCATION_LIMIT / 2);
+    ASSERT(extra >= 1);
+
+    acc_alloc_size = state->acc != NULL ? (state->acc)->orig_size : 0;
+    required_bytes = state->acc_size + extra;
+
+    if (state->acc == NULL) {
+        UWord new_size = MAX(required_bytes, IOL2V_SMALL_BIN_LIMIT);
+
+        state->acc = erts_bin_nrml_alloc(new_size);
+    } else if (required_bytes > acc_alloc_size) {
+        Binary *prev_acc;
+        UWord new_size;
+
+        if (acc_alloc_size >= ACC_REALLOCATION_LIMIT) {
+            /* We skip reallocating once we hit a certain point; it often
+             * results in extra copying and we're very likely to overallocate
+             * on anything other than absurdly long byte/heapbin sequences. */
+            iol2v_enqueue_result(state, iol2v_promote_acc(state));
+            iol2v_expand_acc(state, extra);
+            return;
+        }
+
+        new_size = MAX(required_bytes, acc_alloc_size * 2);
+        prev_acc = state->acc;
+
+        state->acc = erts_bin_realloc(prev_acc, new_size);
+
+        if (prev_acc != state->acc) {
+            state->bytereds_spent += state->acc_size;
+        }
+    }
+
+    state->bytereds_spent += extra;
+}
+
+static int iol2v_append_byte_seq(iol2v_state_t *state, Eterm seq_start, Eterm *seq_end) {
+    Eterm lookahead, iterator;
+    Uint observed_bits;
+    SWord seq_length;
+    char *acc_data;
+
+    lookahead = seq_start;
+    seq_length = 0;
+
+    ASSERT(state->bytereds_available > state->bytereds_spent);
+
+    while (is_list(lookahead)) {
+        Eterm *cell = list_val(lookahead);
+
+        if (!is_small(CAR(cell))) {
+            break;
+        }
+
+        if (seq_length * 2 >= (state->bytereds_available - state->bytereds_spent)) {
+            break;
+        }
+
+        lookahead = CDR(cell);
+        seq_length += 1;
+    }
+
+    ASSERT(seq_length >= 1);
+
+    iol2v_expand_acc(state, seq_length);
+
+    /* Bump a few extra reductions to account for list traversal. */
+    state->bytereds_spent += seq_length;
+
+    acc_data = &(state->acc)->orig_bytes[state->acc_size];
+    state->acc_size += seq_length;
+
+    iterator = seq_start;
+    observed_bits = 0;
+
+    while (iterator != lookahead) {
+        Eterm *cell;
+        Uint byte;
+
+        cell = list_val(iterator);
+        iterator = CDR(cell);
+
+        byte = unsigned_val(CAR(cell));
+        observed_bits |= byte;
+
+        ASSERT(acc_data < &(state->acc)->orig_bytes[state->acc_size]);
+        *(acc_data++) = byte;
+    }
+
+    if (observed_bits > UCHAR_MAX) {
+        return 0;
+    }
+
+    ASSERT(acc_data == &(state->acc)->orig_bytes[state->acc_size]);
+    *seq_end = iterator;
+
+    return 1;
+}
+
+static int iol2v_append_binary(iol2v_state_t *state, Eterm bin_term) {
+    int is_acc_small, is_bin_small;
+    UWord combined_size;
+    UWord binary_size;
+
+    Uint byte_offset, bit_offset, bit_size;
+    byte *binary_data;
+
+    Eterm *parent_header;
+    Eterm parent_binary;
+
+    ASSERT(state->bytereds_available > state->bytereds_spent);
+
+    ERTS_GET_REAL_BIN(bin_term, parent_binary, byte_offset, bit_offset, bit_size);
+    parent_header = binary_val(parent_binary);
+    binary_size = binary_size(bin_term);
+
+    if (bit_offset != 0 || bit_size != 0) {
+        return 0;
+    } else if (binary_size == 0) {
+        state->bytereds_spent += 1;
+        return 1;
+    }
+
+    is_acc_small = state->acc_size < IOL2V_SMALL_BIN_LIMIT;
+    is_bin_small = binary_size < IOL2V_SMALL_BIN_LIMIT;
+    combined_size = binary_size + state->acc_size;
+
+    if (thing_subtag(*parent_header) == REFC_BINARY_SUBTAG) {
+        ProcBin *pb = (ProcBin*)parent_header;
+
+        if (pb->flags) {
+            erts_emasculate_writable_binary(pb);
+        }
+
+        binary_data = &((byte*)pb->bytes)[byte_offset];
+    } else {
+        ErlHeapBin *hb = (ErlHeapBin*)parent_header;
+
+        ASSERT(thing_subtag(*parent_header) == HEAP_BINARY_SUBTAG);
+        ASSERT(is_bin_small);
+
+        binary_data = &((byte*)&hb->data)[byte_offset];
+    }
+
+    if (!is_bin_small && (state->acc_size == 0 || !is_acc_small)) {
+        /* Avoid combining if we encounter an acceptably large binary while the
+         * accumulator is either empty or large enough to be returned on its
+         * own. */
+        if (state->acc_size != 0) {
+            iol2v_enqueue_result(state, iol2v_promote_acc(state));
+        }
+
+        iol2v_enqueue_result(state, bin_term);
+    } else if (is_bin_small || combined_size < (IOL2V_SMALL_BIN_LIMIT * 2)) {
+        /* If the candidate is small or we can't split the combination in two,
+         * then just copy it into the accumulator. */
+        iol2v_expand_acc(state, binary_size);
+
+        sys_memcpy(&(state->acc)->orig_bytes[state->acc_size],
+            binary_data, binary_size);
+
+        state->acc_size += binary_size;
+    } else {
+        /* Otherwise, append enough data for the accumulator to be valid, and
+         * then return the rest as a sub-binary. */
+        UWord spill = IOL2V_SMALL_BIN_LIMIT - state->acc_size;
+        Eterm binary_tail;
+
+        iol2v_expand_acc(state, spill);
+
+        sys_memcpy(&(state->acc)->orig_bytes[state->acc_size],
+            binary_data, spill);
+
+        state->acc_size += spill;
+
+        binary_tail = iol2v_make_sub_bin(state, bin_term, spill,
+            binary_size - spill);
+
+        iol2v_enqueue_result(state, iol2v_promote_acc(state));
+        iol2v_enqueue_result(state, binary_tail);
+    }
+
+    return 1;
+}
+
+static BIF_RETTYPE iol2v_yield(iol2v_state_t *state) {
+    if (is_nil(state->magic_reference)) {
+        iol2v_state_t *boxed_state;
+        Binary *magic_binary;
+        Eterm *hp;
+
+        magic_binary = erts_create_magic_binary_x(sizeof(*state),
+            &iol2v_state_destructor, ERTS_ALC_T_BINARY, 1);
+
+        boxed_state = ERTS_MAGIC_BIN_UNALIGNED_DATA(magic_binary);
+        sys_memcpy(boxed_state, state, sizeof(*state));
+
+        hp = HAlloc(boxed_state->process, ERTS_MAGIC_REF_THING_SIZE);
+        boxed_state->magic_reference =
+            erts_mk_magic_ref(&hp, &MSO(boxed_state->process), magic_binary);
+
+        state = boxed_state;
+    }
+
+    ERTS_BIF_YIELD1(bif_export[BIF_iolist_to_iovec_1],
+        state->process, state->magic_reference);
+}
+
+static BIF_RETTYPE iol2v_continue(iol2v_state_t *state) {
+    Eterm iterator;
+
+    DECLARE_ESTACK(s);
+    ESTACK_CHANGE_ALLOCATOR(s, ERTS_ALC_T_SAVED_ESTACK);
+
+    state->bytereds_available =
+        ERTS_BIF_REDS_LEFT(state->process) * IOL2V_SMALL_BIN_LIMIT;
+    state->bytereds_spent = 0;
+
+    if (state->estack.start) {
+        ESTACK_RESTORE(s, &state->estack);
+    }
+
+    iterator = state->input_list;
+
+    for(;;) {
+        if (state->bytereds_spent >= state->bytereds_available) {
+            ESTACK_SAVE(s, &state->estack);
+            state->input_list = iterator;
+
+            return iol2v_yield(state);
+        }
+
+        while (is_list(iterator)) {
+            Eterm *cell;
+            Eterm head;
+
+            cell = list_val(iterator);
+            head = CAR(cell);
+
+            if (is_binary(head)) {
+                if (!iol2v_append_binary(state, head)) {
+                    goto l_badarg;
+                }
+
+                iterator = CDR(cell);
+            } else if (is_small(head)) {
+                Eterm seq_end;
+
+                if (!iol2v_append_byte_seq(state, iterator, &seq_end)) {
+                    goto l_badarg;
+                }
+
+                iterator = seq_end;
+            } else if (is_list(head) || is_nil(head)) {
+                Eterm tail = CDR(cell);
+
+                if (!is_nil(tail)) {
+                    ESTACK_PUSH(s, tail);
+                }
+
+                state->bytereds_spent += 1;
+                iterator = head;
+            } else {
+                goto l_badarg;
+            }
+
+            if (state->bytereds_spent >= state->bytereds_available) {
+                ESTACK_SAVE(s, &state->estack);
+                state->input_list = iterator;
+
+                return iol2v_yield(state);
+            }
+        }
+
+        if (is_binary(iterator)) {
+            if (!iol2v_append_binary(state, iterator)) {
+                goto l_badarg;
+            }
+        } else if (!is_nil(iterator)) {
+            goto l_badarg;
+        }
+
+        if(ESTACK_ISEMPTY(s)) {
+            break;
+        }
+
+        iterator = ESTACK_POP(s);
+    }
+
+    if (state->acc_size != 0) {
+        iol2v_enqueue_result(state, iol2v_promote_acc(state));
+    }
+
+    BUMP_REDS(state->process, state->bytereds_spent / IOL2V_SMALL_BIN_LIMIT);
+
+    CLEAR_SAVED_ESTACK(&state->estack);
+    DESTROY_ESTACK(s);
+
+    BIF_RET(state->result_head);
+
+l_badarg:
+    CLEAR_SAVED_ESTACK(&state->estack);
+    DESTROY_ESTACK(s);
+
+    if (state->acc != NULL) {
+        erts_bin_free(state->acc);
+        state->acc = NULL;
+    }
+
+    BIF_ERROR(state->process, BADARG);
+}
+
+HIPE_WRAPPER_BIF_DISABLE_GC(iolist_to_iovec, 1)
+
+BIF_RETTYPE iolist_to_iovec_1(BIF_ALIST_1) {
+    BIF_RETTYPE result;
+
+    if (is_nil(BIF_ARG_1)) {
+        BIF_RET(NIL);
+    } else if (is_binary(BIF_ARG_1)) {
+        if (binary_size(BIF_ARG_1) != 0) {
+            Eterm *hp = HAlloc(BIF_P, 2);
+
+            BIF_RET(CONS(hp, BIF_ARG_1, NIL));
+        } else {
+            BIF_RET(NIL);
+        }
+    } else if (is_internal_magic_ref(BIF_ARG_1)) {
+        iol2v_state_t *state;
+        Binary *magic;
+
+        magic = erts_magic_ref2bin(BIF_ARG_1);
+
+        if (ERTS_MAGIC_BIN_DESTRUCTOR(magic) != &iol2v_state_destructor) {
+            ASSERT(!(BIF_P->flags & F_DISABLE_GC));
+            BIF_ERROR(BIF_P, BADARG);
+        }
+
+        ASSERT(BIF_P->flags & F_DISABLE_GC);
+
+        state = ERTS_MAGIC_BIN_UNALIGNED_DATA(magic);
+        result = iol2v_continue(state);
+    } else if (!is_list(BIF_ARG_1)) {
+        ASSERT(!(BIF_P->flags & F_DISABLE_GC));
+        BIF_ERROR(BIF_P, BADARG);
+    } else {
+        iol2v_state_t state;
+
+        iol2v_init(&state, BIF_P, BIF_ARG_1);
+
+        erts_set_gc_state(BIF_P, 0);
+
+        result = iol2v_continue(&state);
+    }
+
+    if (result != THE_NON_VALUE || BIF_P->freason != TRAP) {
+        erts_set_gc_state(BIF_P, 1);
+    }
+
+    BIF_RET(result);
+}
diff --git a/erts/emulator/beam/erl_io_queue.h b/erts/emulator/beam/erl_io_queue.h
new file mode 100644
index 0000000000..51abe99510
--- /dev/null
+++ b/erts/emulator/beam/erl_io_queue.h
@@ -0,0 +1,201 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2017. All Rights Reserved.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * 
+ * %CopyrightEnd%
+ */
+
+/*
+ * Description: A queue used for storing binary data that should be
+ *              passed to writev or similar functions. Used by both
+ *              the nif and driver api.
+ *
+ * Author:      Lukas Larsson
+ */
+
+#ifndef ERL_IO_QUEUE_H__TYPES__
+#define ERL_IO_QUEUE_H__TYPES__
+
+#define ERTS_BINARY_TYPES_ONLY__
+#include "erl_binary.h"
+#undef ERTS_BINARY_TYPES_ONLY__
+#include "erl_nif.h"
+
+#ifdef DEBUG
+#define MAX_SYSIOVEC_IOVLEN (1ull << (32 - 1))
+#else
+#define MAX_SYSIOVEC_IOVLEN (1ull << (sizeof(((SysIOVec*)0)->iov_len) * 8 - 1))
+#endif
+
+#define ERTS_SMALL_IO_QUEUE 5
+
+typedef union {
+    ErlDrvBinary driver;
+    Binary nif;
+} ErtsIOQBinary;
+
+typedef struct {
+    int vsize;         /* length of vectors */
+    Uint size;         /* total size in bytes */
+    SysIOVec* iov;
+    ErtsIOQBinary** binv;
+} ErtsIOVecCommon;
+
+typedef union {
+    ErtsIOVecCommon common;
+    ErlIOVec driver;
+    ErlNifIOVec nif;
+} ErtsIOVec;
+
+/* head/tail represent the data in the queue
+ * start/end represent the edges of the allocated queue
+ * small is used when the number of iovec elements is < SMALL_IO_QUEUE
+ */
+typedef struct erts_io_queue {
+    ErtsAlcType_t alct;
+    int driver;
+    Uint size;       /* total size in bytes */
+
+    SysIOVec* v_start;
+    SysIOVec* v_end;
+    SysIOVec* v_head;
+    SysIOVec* v_tail;
+    SysIOVec  v_small[ERTS_SMALL_IO_QUEUE];
+
+    ErtsIOQBinary **b_start;
+    ErtsIOQBinary **b_end;
+    ErtsIOQBinary **b_head;
+    ErtsIOQBinary **b_tail;
+    ErtsIOQBinary  *b_small[ERTS_SMALL_IO_QUEUE];
+
+} ErtsIOQueue;
+
+#endif /* ERL_IO_QUEUE_H__TYPES__ */
+
+#if !defined(ERL_IO_QUEUE_H) && !defined(ERTS_IO_QUEUE_TYPES_ONLY__)
+#define ERL_IO_QUEUE_H
+
+#include "erl_binary.h"
+#include "erl_bits.h"
+
+void erts_ioq_init(ErtsIOQueue *q, ErtsAlcType_t alct, int driver);
+void erts_ioq_clear(ErtsIOQueue *q);
+Uint erts_ioq_size(ErtsIOQueue *q);
+int erts_ioq_enqv(ErtsIOQueue *q, ErtsIOVec *vec, Uint skip);
+int erts_ioq_pushqv(ErtsIOQueue *q, ErtsIOVec *vec, Uint skip);
+int erts_ioq_deq(ErtsIOQueue *q, Uint Uint);
+Uint erts_ioq_peekqv(ErtsIOQueue *q, ErtsIOVec *ev);
+SysIOVec *erts_ioq_peekq(ErtsIOQueue *q, int *vlenp);
+Uint erts_ioq_sizeq(ErtsIOQueue *q);
+
+int erts_ioq_iolist_vec_len(Eterm obj, int* vsize, Uint* csize,
+                            Uint* pvsize, Uint* pcsize,
+                            Uint* total_size, Uint blimit);
+int erts_ioq_iolist_to_vec(Eterm obj, SysIOVec* iov,
+                           ErtsIOQBinary** binv, ErtsIOQBinary* cbin,
+                           Uint bin_limit, int driver_binary);
+
+ERTS_GLB_INLINE
+int erts_ioq_iodata_vec_len(Eterm obj, int* vsize, Uint* csize,
+                            Uint* pvsize, Uint* pcsize,
+                            Uint* total_size, Uint blimit);
+ERTS_GLB_INLINE
+int erts_ioq_iodata_to_vec(Eterm obj, SysIOVec* iov,
+                           ErtsIOQBinary** binv, ErtsIOQBinary* cbin,
+                           Uint bin_limit, int driver_binary);
+
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE
+int erts_ioq_iodata_vec_len(Eterm obj, int* vsize, Uint* csize,
+                            Uint* pvsize, Uint* pcsize,
+                            Uint* total_size, Uint blimit) {
+  if (is_binary(obj)) {
+    /* We optimize for when we get a procbin without a bit-offset
+     * that fits in one iov slot
+     */
+    Eterm real_bin;
+    byte bitoffs;
+    byte bitsize;
+    ERTS_DECLARE_DUMMY(Uint offset);
+    Uint size = binary_size(obj);
+    ERTS_GET_REAL_BIN(obj, real_bin, offset, bitoffs, bitsize);
+    if (size < MAX_SYSIOVEC_IOVLEN && bitoffs == 0 && bitsize == 0) {
+      *vsize = 1;
+      *pvsize = 1;
+      if (thing_subtag(*binary_val(real_bin)) == REFC_BINARY_SUBTAG) {
+          *csize = 0;
+          *pcsize = 0;
+      } else {
+          *csize = size;
+          *pcsize = size;
+      }
+      *total_size = size;
+      return 0;
+    }
+  }
+
+  return erts_ioq_iolist_vec_len(obj, vsize, csize,
+                                 pvsize, pcsize, total_size, blimit);
+}
+
+ERTS_GLB_INLINE
+int erts_ioq_iodata_to_vec(Eterm obj,
+                           SysIOVec *iov,
+                           ErtsIOQBinary **binv,
+                           ErtsIOQBinary  *cbin,
+                           Uint bin_limit,
+                           int driver)
+{
+    if (is_binary(obj)) {
+        Eterm real_bin;
+        byte bitoffs;
+        byte bitsize;
+        Uint offset;
+        Uint size = binary_size(obj);
+        ERTS_GET_REAL_BIN(obj, real_bin, offset, bitoffs, bitsize);
+        if (size < MAX_SYSIOVEC_IOVLEN && bitoffs == 0 && bitsize == 0) {
+            Eterm *bptr = binary_val(real_bin);
+            if (thing_subtag(*bptr) == REFC_BINARY_SUBTAG) {
+                ProcBin *pb = (ProcBin *)bptr;
+                if (pb->flags)
+                    erts_emasculate_writable_binary(pb);
+                iov[0].iov_base = pb->bytes+offset;
+                iov[0].iov_len = size;
+                if (driver)
+                    binv[0] = (ErtsIOQBinary*)Binary2ErlDrvBinary(pb->val);
+                else
+                    binv[0] = (ErtsIOQBinary*)pb->val;
+                return 1;
+            } else {
+                ErlHeapBin* hb = (ErlHeapBin *)bptr;
+                byte *buf = driver ? (byte*)cbin->driver.orig_bytes :
+                    (byte*)cbin->nif.orig_bytes;
+		copy_binary_to_buffer(buf, 0, ((byte *) hb->data)+offset, 0, 8*size);
+                iov[0].iov_base = buf;
+                iov[0].iov_len = size;
+                binv[0] = cbin;
+                return 1;
+            }
+        }
+    }
+    return erts_ioq_iolist_to_vec(obj, iov, binv, cbin, bin_limit, driver);
+}
+
+#endif
+
+#endif /* ERL_IO_QUEUE_H */
diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c
index b68b48874d..4cdef0200f 100644
--- a/erts/emulator/beam/erl_lock_check.c
+++ b/erts/emulator/beam/erl_lock_check.c
@@ -113,17 +113,14 @@ static erts_lc_lock_order_t erts_lock_order[] = {
     {	"drv_ev_state_grow",			NULL,   		},
     {	"drv_ev_state",				"address"		},
     {	"safe_hash",				"address"		},
-    {   "pollset_rm_list",                      NULL                    },
     {   "removed_fd_pre_alloc_lock",            "address"               },
     {   "state_prealloc",                       NULL                    },
     {	"schdlr_sspnd",				NULL			},
     {	"migration_info_update",		NULL			},
     {	"run_queue",				"address"		},
-#ifdef ERTS_DIRTY_SCHEDULERS
     {   "dirty_run_queue_sleep_list",		"address"		},
     {	"dirty_gc_info",			NULL			},
     {	"dirty_break_point_index",		NULL			},
-#endif
     {	"process_table",			NULL			},
     {	"cpu_info",				NULL			},
     {	"pollset",				"address"		},
@@ -160,9 +157,9 @@ static erts_lc_lock_order_t erts_lock_order[] = {
     {	"xports_list_pre_alloc_lock",		"address"		},
     {	"inet_buffer_stack_lock",		NULL			},
     {	"system_block",				NULL			},
-    {	"timeofday",				NULL			},
     {	"get_time",				NULL			},
     {	"get_corrected_time",			NULL			},
+    {	"runtime",				NULL			},
     {	"breakpoints",				NULL			},
     {	"pix_lock",				"address"		},
     {	"run_queues_lists",			NULL			},
diff --git a/erts/emulator/beam/erl_lock_count.c b/erts/emulator/beam/erl_lock_count.c
index d2e8f47d59..1ae6076b12 100644
--- a/erts/emulator/beam/erl_lock_count.c
+++ b/erts/emulator/beam/erl_lock_count.c
@@ -554,16 +554,6 @@ erts_lock_flags_t erts_lcnt_get_category_mask() {
     return lcnt_category_mask__;
 }
 
-#ifdef ERTS_ENABLE_KERNEL_POLL
-/* erl_poll/erl_check_io only exports one of these variants at a time, and we
- * may need to use either one depending on emulator startup flags. */
-void erts_lcnt_update_pollset_locks_nkp(int);
-void erts_lcnt_update_pollset_locks_kp(int);
-
-void erts_lcnt_update_cio_locks_nkp(int);
-void erts_lcnt_update_cio_locks_kp(int);
-#endif
-
 void erts_lcnt_set_category_mask(erts_lock_flags_t mask) {
     erts_lock_flags_t changed_categories;
 
@@ -590,19 +580,7 @@ void erts_lcnt_set_category_mask(erts_lock_flags_t mask) {
     }
 
     if(changed_categories & ERTS_LOCK_FLAGS_CATEGORY_IO) {
-#ifdef ERTS_ENABLE_KERNEL_POLL
-        if(erts_use_kernel_poll) {
-            erts_lcnt_update_pollset_locks_kp(mask & ERTS_LOCK_FLAGS_CATEGORY_IO);
-            erts_lcnt_update_cio_locks_kp(mask & ERTS_LOCK_FLAGS_CATEGORY_IO);
-        } else {
-            erts_lcnt_update_pollset_locks_nkp(mask & ERTS_LOCK_FLAGS_CATEGORY_IO);
-            erts_lcnt_update_cio_locks_nkp(mask & ERTS_LOCK_FLAGS_CATEGORY_IO);
-        }
-#else
-        erts_lcnt_update_pollset_locks(mask & ERTS_LOCK_FLAGS_CATEGORY_IO);
         erts_lcnt_update_cio_locks(mask & ERTS_LOCK_FLAGS_CATEGORY_IO);
-#endif
-
         erts_lcnt_update_driver_locks(mask & ERTS_LOCK_FLAGS_CATEGORY_IO);
         erts_lcnt_update_port_locks(mask & ERTS_LOCK_FLAGS_CATEGORY_IO);
     }
diff --git a/erts/emulator/beam/erl_message.c b/erts/emulator/beam/erl_message.c
index 3418a7f4df..abf194cf94 100644
--- a/erts/emulator/beam/erl_message.c
+++ b/erts/emulator/beam/erl_message.c
@@ -550,14 +550,11 @@ erts_msg_attached_data_size_aux(ErtsMessage *msg)
 
     sz = erts_decode_dist_ext_size(msg->data.dist_ext);
     if (sz < 0) {
-	/* Bad external; remove it */
-	if (is_not_nil(ERL_MESSAGE_TOKEN(msg))) {
-	    ErlHeapFragment *heap_frag;
-	    heap_frag = erts_dist_ext_trailer(msg->data.dist_ext);
-	    erts_cleanup_offheap(&heap_frag->off_heap);
-	}
-	erts_free_dist_ext_copy(msg->data.dist_ext);
-	msg->data.dist_ext = NULL;
+	/* Bad external
+	 * We leave the message intact in this case as it's not worth the trouble
+	 * to make all callers remove it from queue. It will be detected again
+	 * and removed from message queue later anyway.
+	 */
 	return 0;
     }
 
diff --git a/erts/emulator/beam/erl_monitors.c b/erts/emulator/beam/erl_monitors.c
index 67c552b364..1c840d89f6 100644
--- a/erts/emulator/beam/erl_monitors.c
+++ b/erts/emulator/beam/erl_monitors.c
@@ -993,7 +993,6 @@ Eterm erts_debug_dump_monitors_1(BIF_ALIST_1)
 	    erts_dump_monitors(dep->monitors,0);
 	    erts_de_links_unlock(dep);
 	    erts_printf("Monitors dumped-------------------------\n");
-	    erts_deref_dist_entry(dep);
 	    BIF_RET(am_true);
 	} else {
 	    BIF_ERROR(p,BADARG);
@@ -1038,7 +1037,6 @@ Eterm erts_debug_dump_links_1(BIF_ALIST_1)
 		erts_dump_links(dep->nlinks,0);
 		erts_de_links_unlock(dep);
 		erts_printf("Links dumped----------------------------\n");
-		erts_deref_dist_entry(dep);
 		BIF_RET(am_true);
 	    } else {
 		BIF_ERROR(p,BADARG);
diff --git a/erts/emulator/beam/erl_msacc.h b/erts/emulator/beam/erl_msacc.h
index 8349a7e297..2d4637f800 100644
--- a/erts/emulator/beam/erl_msacc.h
+++ b/erts/emulator/beam/erl_msacc.h
@@ -318,8 +318,8 @@ ERTS_GLB_INLINE
 void erts_msacc_set_state_um__(ErtsMsAcc *msacc, Uint new_state, int increment) {
     if (ERTS_UNLIKELY(msacc->unmanaged)) {
         erts_mtx_lock(&msacc->mtx);
-        msacc->state = new_state;
         if (ERTS_LIKELY(!msacc->perf_counter)) {
+            msacc->state = new_state;
             erts_mtx_unlock(&msacc->mtx);
             return;
         }
diff --git a/erts/emulator/beam/erl_nfunc_sched.h b/erts/emulator/beam/erl_nfunc_sched.h
index 69008084df..b8a4e4ebc3 100644
--- a/erts/emulator/beam/erl_nfunc_sched.h
+++ b/erts/emulator/beam/erl_nfunc_sched.h
@@ -193,7 +193,6 @@ erts_nif_export_check_save_trace(Process *c_p, Eterm result,
 ERTS_GLB_INLINE Process *
 erts_proc_shadow2real(Process *c_p)
 {
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (c_p->static_flags & ERTS_STC_FLG_SHADOW_PROC) {
 	Process *real_c_p = c_p->next;
 	ASSERT(ERTS_SCHEDULER_IS_DIRTY(erts_get_scheduler_data()));
@@ -201,7 +200,6 @@ erts_proc_shadow2real(Process *c_p)
 	return real_c_p;
     }
     ASSERT(!ERTS_SCHEDULER_IS_DIRTY(erts_get_scheduler_data()));
-#endif
     return c_p;
 }
 
@@ -213,11 +211,10 @@ erts_proc_shadow2real(Process *c_p)
 #define ERTS_NFUNC_SCHED_INTERNALS__
 
 #define ERTS_I_BEAM_OP_TO_NIF_EXPORT(I)					\
-    (ASSERT(BeamOp(op_apply_bif) == (BeamInstr *) (*(I))		\
-	    || BeamOp(op_call_nif) == (BeamInstr *) (*(I))),		\
+    (ASSERT(BeamIsOpCode(*(I), op_apply_bif) ||                         \
+            BeamIsOpCode(*(I), op_call_nif)),                           \
      ((NifExport *) (((char *) (I)) - offsetof(NifExport, exp.beam[0]))))
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 #include "erl_message.h"
 #include <stddef.h>
@@ -326,7 +323,6 @@ erts_make_dirty_shadow_proc(ErtsSchedulerData *esdp, Process *c_p)
 
 #endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
 
-#endif /* ERTS_DIRTY_SCHEDULERS */
 
 #endif /* defined(ERTS_WANT_NFUNC_SCHED_INTERNALS__) && !defined(ERTS_NFUNC_SCHED_INTERNALS__) */
 
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 05bcf73451..f7f12efe28 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -56,6 +56,7 @@
 #include "erl_process.h"
 #include "erl_bif_unique.h"
 #include "erl_utils.h"
+#include "erl_io_queue.h"
 #undef ERTS_WANT_NFUNC_SCHED_INTERNALS__
 #define ERTS_WANT_NFUNC_SCHED_INTERNALS__
 #include "erl_nfunc_sched.h"
@@ -66,7 +67,6 @@
 #include <limits.h>
 #include <stddef.h> /* offsetof */
 
-
 /* Information about a loaded nif library.
  * Each successful call to erlang:load_nif will allocate an instance of
  * erl_module_nif. Two calls opening the same library will thus have the same
@@ -292,7 +292,7 @@ schedule(ErlNifEnv* env, NativeFunPtr direct_fp, NativeFunPtr indirect_fp,
     ep = erts_nif_export_schedule(c_p, dirty_shadow_proc,
 				  c_p->current,
 				  c_p->cp,
-				  (BeamInstr) em_call_nif,
+				  BeamOpCodeAddr(op_call_nif),
 				  direct_fp, indirect_fp,
 				  mod, func_name,
 				  argc, (const Eterm *) argv);
@@ -304,7 +304,6 @@ schedule(ErlNifEnv* env, NativeFunPtr direct_fp, NativeFunPtr indirect_fp,
     return (ERL_NIF_TERM) THE_NON_VALUE;
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 static ERL_NIF_TERM dirty_nif_finalizer(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 static ERL_NIF_TERM dirty_nif_exception(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
@@ -394,24 +393,19 @@ erts_call_dirty_nif(ErtsSchedulerData *esdp, Process *c_p, BeamInstr *I, Eterm *
     return exiting;
 }
 
-#endif
 
 static void full_flush_env(ErlNifEnv* env)
 {
     flush_env(env);
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (env->proc->static_flags & ERTS_STC_FLG_SHADOW_PROC)
 	/* Dirty nif call using shadow process struct */
 	erts_flush_dirty_shadow_proc(env->proc);
-#endif
 }
 
 static void full_cache_env(ErlNifEnv* env)
 {    
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (env->proc->static_flags & ERTS_STC_FLG_SHADOW_PROC)
 	erts_cache_dirty_shadow_proc(env->proc);
-#endif
     cache_env(env);
 }
 
@@ -2591,7 +2585,6 @@ nif_export_restore(Process *c_p, NifExport *ep, Eterm res)
 }
 
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 /*
  * Finalize a dirty NIF call. This function is scheduled to cause the VM to
@@ -2719,7 +2712,6 @@ static_schedule_dirty_cpu_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[
     return static_schedule_dirty_nif(env, ERTS_PSFLG_DIRTY_CPU_PROC, argc, argv);
 }
 
-#endif /* ERTS_DIRTY_SCHEDULERS */
 
 /*
  * NIF execution wrapper used by enif_schedule_nif() for regular NIFs. It
@@ -2800,11 +2792,7 @@ enif_schedule_nif(ErlNifEnv* env, const char* fun_name, int flags,
 	result = schedule(env, execute_nif, fp, proc->current->module,
 			  fun_name_atom, argc, argv);
     else if (!(flags & ~(ERL_NIF_DIRTY_JOB_IO_BOUND|ERL_NIF_DIRTY_JOB_CPU_BOUND))) {
-#ifdef ERTS_DIRTY_SCHEDULERS
 	result = schedule_dirty_nif(env, flags, fp, fun_name_atom, argc, argv);
-#else
-        result = enif_raise_exception(env, am_notsup);
-#endif
     }
     else
 	result = enif_make_badarg(env);
@@ -2826,12 +2814,10 @@ enif_thread_type(void)
     switch (esdp->type) {
     case ERTS_SCHED_NORMAL:
 	return ERL_NIF_THR_NORMAL_SCHEDULER;
-#ifdef ERTS_DIRTY_SCHEDULERS
     case ERTS_SCHED_DIRTY_CPU:
 	return ERL_NIF_THR_DIRTY_CPU_SCHEDULER;
     case ERTS_SCHED_DIRTY_IO:
         return ERL_NIF_THR_DIRTY_IO_SCHEDULER;
-#endif
     default:
         ERTS_INTERNAL_ERROR("Invalid scheduler type");
 	return -1;
@@ -3259,6 +3245,363 @@ int enif_compare_monitors(const ErlNifMonitor *monitor1,
                       ERTS_REF_THING_SIZE*sizeof(Eterm));
 }
 
+ErlNifIOQueue *enif_ioq_create(ErlNifIOQueueOpts opts)
+{
+    ErlNifIOQueue *q;
+
+    if (opts != ERL_NIF_IOQ_NORMAL)
+        return NULL;
+
+    q = enif_alloc(sizeof(ErlNifIOQueue));
+    if (!q) return NULL;
+    erts_ioq_init(q, ERTS_ALC_T_NIF, 0);
+
+    return q;
+}
+
+void enif_ioq_destroy(ErlNifIOQueue *q)
+{
+    erts_ioq_clear(q);
+    enif_free(q);
+}
+
+/* If the iovec was preallocated (Stack or otherwise) it needs to be marked as
+ * such to perform a proper free. */
+#define ERL_NIF_IOVEC_FLAGS_PREALLOC (1 << 0)
+
+void enif_free_iovec(ErlNifIOVec *iov)
+{
+    int i;
+    /* Decrement the refc of all the binaries */
+    for (i = 0; i < iov->iovcnt; i++) {
+        Binary *bptr = ((Binary**)iov->ref_bins)[i];
+        /* bptr can be null if enq_binary was used */
+        if (bptr && erts_refc_dectest(&bptr->intern.refc, 0) == 0) {
+            erts_bin_free(bptr);
+        }
+    }
+
+    if (!(iov->flags & ERL_NIF_IOVEC_FLAGS_PREALLOC)) {
+        enif_free(iov);
+    }
+}
+
+typedef struct {
+    UWord sublist_length;
+    Eterm sublist_start;
+    Eterm sublist_end;
+
+    UWord offheap_size;
+    UWord onheap_size;
+
+    UWord iovec_len;
+} iovec_slice_t;
+
+static int examine_iovec_term(Eterm list, UWord max_length, iovec_slice_t *result) {
+    Eterm lookahead;
+
+    result->sublist_start = list;
+    result->sublist_length = 0;
+    result->offheap_size = 0;
+    result->onheap_size = 0;
+    result->iovec_len = 0;
+
+    lookahead = result->sublist_start;
+
+    while (is_list(lookahead)) {
+        Eterm *binary_header, binary;
+        Eterm *cell;
+        UWord size;
+
+        cell = list_val(lookahead);
+        binary = CAR(cell);
+
+        if (!is_binary(binary)) {
+            return 0;
+        }
+
+        size = binary_size(binary);
+        binary_header = binary_val(binary);
+
+        /* If we're a sub-binary we'll need to check our underlying binary to
+         * determine whether we're on-heap or not. */
+        if(thing_subtag(*binary_header) == SUB_BINARY_SUBTAG) {
+            ErlSubBin *sb = (ErlSubBin*)binary_header;
+
+            /* Reject bitstrings */
+            if((sb->bitoffs + sb->bitsize) > 0) {
+                return 0;
+            }
+
+            ASSERT(size <= binary_size(sb->orig));
+            binary_header = binary_val(sb->orig);
+        }
+
+        if(thing_subtag(*binary_header) == HEAP_BINARY_SUBTAG) {
+            ASSERT(size <= ERL_ONHEAP_BIN_LIMIT);
+
+            result->iovec_len += 1;
+            result->onheap_size += size;
+        } else {
+            ASSERT(thing_subtag(*binary_header) == REFC_BINARY_SUBTAG);
+
+            result->iovec_len += 1 + size / MAX_SYSIOVEC_IOVLEN;
+            result->offheap_size += size;
+        }
+
+        result->sublist_length += 1;
+        lookahead = CDR(cell);
+
+        if(result->sublist_length >= max_length) {
+            break;
+        }
+    }
+
+    if (!is_nil(lookahead) && !is_list(lookahead)) {
+        return 0;
+    }
+
+    result->sublist_end = lookahead;
+
+    return 1;
+}
+
+static void inspect_raw_binary_data(Eterm binary, ErlNifBinary *result) {
+    Eterm *parent_header;
+    Eterm parent_binary;
+
+    int bit_offset, bit_size;
+    Uint byte_offset;
+
+    ASSERT(is_binary(binary));
+
+    ERTS_GET_REAL_BIN(binary, parent_binary, byte_offset, bit_offset, bit_size);
+
+    parent_header = binary_val(parent_binary);
+
+    result->size = binary_size(binary);
+    result->bin_term = binary;
+
+    if (thing_subtag(*parent_header) == REFC_BINARY_SUBTAG) {
+        ProcBin *pb = (ProcBin*)parent_header;
+
+        ASSERT(pb->val != NULL);
+        ASSERT(byte_offset < pb->size);
+        ASSERT(&pb->bytes[byte_offset] >= (byte*)(pb->val)->orig_bytes);
+
+        result->data = (unsigned char*)&pb->bytes[byte_offset];
+        result->ref_bin = (void*)pb->val;
+    } else {
+        ErlHeapBin *hb = (ErlHeapBin*)parent_header;
+
+        ASSERT(thing_subtag(*parent_header) == HEAP_BINARY_SUBTAG);
+
+        result->data = &((unsigned char*)&hb->data)[byte_offset];
+        result->ref_bin = NULL;
+    }
+}
+
+static int fill_iovec_with_slice(ErlNifEnv *env,
+                                 iovec_slice_t *slice,
+                                 ErlNifIOVec *iovec) {
+    UWord onheap_offset, iovec_idx;
+    ErlNifBinary onheap_data;
+    Eterm sublist_iterator;
+
+    /* Set up a common refc binary for all on-heap binaries. */
+    if (slice->onheap_size > 0) {
+        if (!enif_alloc_binary(slice->onheap_size, &onheap_data)) {
+            return 0;
+        }
+    }
+
+    sublist_iterator = slice->sublist_start;
+    onheap_offset = 0;
+    iovec_idx = 0;
+
+    while (sublist_iterator != slice->sublist_end) {
+        ErlNifBinary raw_data;
+        Eterm *cell;
+
+        cell = list_val(sublist_iterator);
+        inspect_raw_binary_data(CAR(cell), &raw_data);
+
+        /* If this isn't a refc binary, copy its contents to the onheap buffer
+         * and reference that instead. */
+        if (raw_data.ref_bin == NULL) {
+            ASSERT(onheap_offset < onheap_data.size);
+            ASSERT(slice->onheap_size > 0);
+
+            sys_memcpy(&onheap_data.data[onheap_offset],
+                       raw_data.data, raw_data.size);
+
+            raw_data.data = &onheap_data.data[onheap_offset];
+            raw_data.ref_bin = onheap_data.ref_bin;
+        }
+
+        ASSERT(raw_data.ref_bin != NULL);
+
+        while (raw_data.size > 0) {
+            UWord chunk_len = MIN(raw_data.size, MAX_SYSIOVEC_IOVLEN);
+
+            ASSERT(iovec_idx < iovec->iovcnt);
+
+            iovec->iov[iovec_idx].iov_base = raw_data.data;
+            iovec->iov[iovec_idx].iov_len = chunk_len;
+
+            iovec->ref_bins[iovec_idx] = raw_data.ref_bin;
+
+            raw_data.data += chunk_len;
+            raw_data.size -= chunk_len;
+
+            iovec_idx += 1;
+        }
+
+        sublist_iterator = CDR(cell);
+    }
+
+    ASSERT(iovec_idx == iovec->iovcnt);
+
+    if (env == NULL) {
+        int i;
+        for (i = 0; i < iovec->iovcnt; i++) {
+            Binary *refc_binary = (Binary*)(iovec->ref_bins[i]);
+            erts_refc_inc(&refc_binary->intern.refc, 1);
+        }
+
+        if (slice->onheap_size > 0) {
+            /* Transfer ownership to the iovec; we've taken references to it in
+             * the above loop. */
+            enif_release_binary(&onheap_data);
+        }
+    } else {
+        if (slice->onheap_size > 0) {
+            /* Attach the binary to our environment and let the GC take care of
+             * it after returning. */
+            enif_make_binary(env, &onheap_data);
+        }
+    }
+
+    return 1;
+}
+
+static int create_iovec_from_slice(ErlNifEnv *env,
+                                   iovec_slice_t *slice,
+                                   ErlNifIOVec **result) {
+    ErlNifIOVec *iovec = *result;
+
+    if (iovec && slice->iovec_len < ERL_NIF_IOVEC_SIZE) {
+        iovec->iov = iovec->small_iov;
+        iovec->ref_bins = iovec->small_ref_bin;
+        iovec->flags = ERL_NIF_IOVEC_FLAGS_PREALLOC;
+    } else {
+        UWord iov_offset, binv_offset, alloc_size;
+        char *alloc_base;
+
+        iov_offset = ERTS_ALC_DATA_ALIGN_SIZE(sizeof(ErlNifIOVec));
+        binv_offset = iov_offset;
+        binv_offset += ERTS_ALC_DATA_ALIGN_SIZE(slice->iovec_len * sizeof(SysIOVec));
+        alloc_size = binv_offset;
+        alloc_size += slice->iovec_len * sizeof(Binary*);
+
+        /* If we have an environment we'll attach the allocated data to it. The
+         * GC will take care of releasing it later on. */
+        if (env != NULL) {
+            ErlNifBinary gc_bin;
+
+            if (!enif_alloc_binary(alloc_size, &gc_bin)) {
+                return 0;
+            }
+
+            alloc_base = (char*)gc_bin.data;
+            enif_make_binary(env, &gc_bin);
+        } else {
+            alloc_base = enif_alloc(alloc_size);
+        }
+
+        iovec = (ErlNifIOVec*)alloc_base;
+        iovec->iov = (SysIOVec*)(alloc_base + iov_offset);
+        iovec->ref_bins = (void**)(alloc_base + binv_offset);
+        iovec->flags = 0;
+    }
+
+    iovec->size = slice->offheap_size + slice->onheap_size;
+    iovec->iovcnt = slice->iovec_len;
+
+    if(!fill_iovec_with_slice(env, slice, iovec)) {
+        if (env == NULL && !(iovec->flags & ERL_NIF_IOVEC_FLAGS_PREALLOC)) {
+            enif_free(iovec);
+        }
+
+        return 0;
+    }
+
+    *result = iovec;
+
+    return 1;
+}
+
+int enif_inspect_iovec(ErlNifEnv *env, size_t max_elements,
+                       ERL_NIF_TERM list, ERL_NIF_TERM *tail,
+                       ErlNifIOVec **iov) {
+    iovec_slice_t slice;
+
+    if(!examine_iovec_term(list, max_elements, &slice)) {
+        return 0;
+    } else if(!create_iovec_from_slice(env, &slice, iov)) {
+        return 0;
+    }
+
+    (*tail) = slice.sublist_end;
+
+    return 1;
+}
+
+/* */
+int enif_ioq_enqv(ErlNifIOQueue *q, ErlNifIOVec *iov, size_t skip)
+{
+    if(skip <= iov->size) {
+        return !erts_ioq_enqv(q, (ErtsIOVec*)iov, skip);
+    }
+
+    return 0;
+}
+
+int enif_ioq_enq_binary(ErlNifIOQueue *q, ErlNifBinary *bin, size_t skip)
+{
+    ErlNifIOVec vec = {1, bin->size, NULL, NULL, ERL_NIF_IOVEC_FLAGS_PREALLOC };
+    Binary *ref_bin = (Binary*)bin->ref_bin;
+    int res;
+    vec.iov = vec.small_iov;
+    vec.ref_bins = vec.small_ref_bin;
+    vec.iov[0].iov_base = bin->data;
+    vec.iov[0].iov_len = bin->size;
+    ((Binary**)(vec.ref_bins))[0] = ref_bin;
+
+    res = enif_ioq_enqv(q, &vec, skip);
+    enif_release_binary(bin);
+    return res;
+}
+
+size_t enif_ioq_size(ErlNifIOQueue *q)
+{
+    return erts_ioq_size(q);
+}
+
+int enif_ioq_deq(ErlNifIOQueue *q, size_t elems, size_t *size)
+{
+    if (erts_ioq_deq(q, elems) == -1)
+        return 0;
+    if (size)
+        *size = erts_ioq_size(q);
+    return 1;
+}
+
+SysIOVec *enif_ioq_peek(ErlNifIOQueue *q, int *iovlen)
+{
+    return erts_ioq_peekq(q, iovlen);
+}
+
 /***************************************************************************
  **                              load_nif/2                               **
  ***************************************************************************/
@@ -3270,7 +3613,7 @@ static ErtsCodeInfo** get_func_pp(BeamCodeHeader* mod_code, Eterm f_atom, unsign
     int j;
     for (j = 0; j < n; ++j) {
 	ErtsCodeInfo* ci = mod_code->functions[j];
-	ASSERT(ci->op == (BeamInstr) BeamOp(op_i_func_info_IaaI));
+	ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI));
 	if (f_atom == ci->mfa.function
 	    && arity == ci->mfa.arity) {
 	    return mod_code->functions+j;
@@ -3572,14 +3915,9 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
 		 * dirty scheduler support, treat a non-zero flags field as
 		 * a load error.
 		 */
-#ifdef ERTS_DIRTY_SCHEDULERS
 		if (f->flags != ERL_NIF_DIRTY_JOB_IO_BOUND && f->flags != ERL_NIF_DIRTY_JOB_CPU_BOUND)
 		    ret = load_nif_error(BIF_P, bad_lib, "Illegal flags field value %d for NIF %T:%s/%u",
 					 f->flags, mod_atom, f->name, f->arity);
-#else
-		ret = load_nif_error(BIF_P, bad_lib, "NIF %T:%s/%u requires a runtime with dirty scheduler support.",
-				     mod_atom, f->name, f->arity);
-#endif
 	    }
 	    else if (erts_codeinfo_to_code(ci_pp[1]) - erts_codeinfo_to_code(ci_pp[0])
                      < BEAM_NIF_MIN_FUNC_SZ)
@@ -3644,15 +3982,13 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
             code_ptr = erts_codeinfo_to_code(ci);
 
 	    if (ci->u.gen_bp == NULL) {
-		code_ptr[0] = (BeamInstr) BeamOp(op_call_nif);
+		code_ptr[0] = BeamOpCodeAddr(op_call_nif);
 	    }
 	    else { /* Function traced, patch the original instruction word */
 		GenericBp* g = ci->u.gen_bp;
-		ASSERT(code_ptr[0] ==
-		       (BeamInstr) BeamOp(op_i_generic_breakpoint));
-		g->orig_instr = (BeamInstr) BeamOp(op_call_nif);
+		ASSERT(BeamIsOpCode(code_ptr[0], op_i_generic_breakpoint));
+		g->orig_instr = BeamOpCodeAddr(op_call_nif);
 	    }
-#ifdef ERTS_DIRTY_SCHEDULERS
 	    if (f->flags) {
 		code_ptr[3] = (BeamInstr) f->fptr;
 		code_ptr[1] = (f->flags == ERL_NIF_DIRTY_JOB_IO_BOUND) ?
@@ -3660,7 +3996,6 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
 		    (BeamInstr) static_schedule_dirty_cpu_nif;
 	    }
 	    else
-#endif
 		code_ptr[1] = (BeamInstr) f->fptr;
 	    code_ptr[2] = (BeamInstr) lib;
 	}
diff --git a/erts/emulator/beam/erl_nif.h b/erts/emulator/beam/erl_nif.h
index b0d5c39798..d195721054 100644
--- a/erts/emulator/beam/erl_nif.h
+++ b/erts/emulator/beam/erl_nif.h
@@ -50,6 +50,7 @@
 ** 2.9: 18.2 enif_getenv
 ** 2.10: Time API
 ** 2.11: 19.0 enif_snprintf 
+** 2.12: 20.0 add enif_queue
 */
 #define ERL_NIF_MAJOR_VERSION 2
 #define ERL_NIF_MINOR_VERSION 12
@@ -241,6 +242,28 @@ typedef enum {
     ERL_NIF_PHASH2 = 2
 } ErlNifHash;
 
+#define ERL_NIF_IOVEC_SIZE 16
+
+typedef struct erl_nif_io_vec {
+    int iovcnt;  /* length of vectors */
+    size_t size; /* total size in bytes */
+    SysIOVec *iov;
+
+    /* internals (avert your eyes) */
+    void **ref_bins; /* Binary[] */
+    int flags;
+
+    /* Used when stack allocating the io vec */
+    SysIOVec small_iov[ERL_NIF_IOVEC_SIZE];
+    void *small_ref_bin[ERL_NIF_IOVEC_SIZE];
+} ErlNifIOVec;
+
+typedef struct erts_io_queue ErlNifIOQueue;
+
+typedef enum {
+    ERL_NIF_IOQ_NORMAL = 1
+} ErlNifIOQueueOpts;
+
 /*
  * Return values from enif_thread_type(). Negative values
  * reserved for specific types of non-scheduler threads.
diff --git a/erts/emulator/beam/erl_nif_api_funcs.h b/erts/emulator/beam/erl_nif_api_funcs.h
index 94c04cd126..9e573307d8 100644
--- a/erts/emulator/beam/erl_nif_api_funcs.h
+++ b/erts/emulator/beam/erl_nif_api_funcs.h
@@ -184,6 +184,21 @@ ERL_NIF_API_FUNC_DECL(ErlNifUInt64,enif_hash,(ErlNifHash type, ERL_NIF_TERM term
 ERL_NIF_API_FUNC_DECL(int, enif_whereis_pid, (ErlNifEnv *env, ERL_NIF_TERM name, ErlNifPid *pid));
 ERL_NIF_API_FUNC_DECL(int, enif_whereis_port, (ErlNifEnv *env, ERL_NIF_TERM name, ErlNifPort *port));
 
+ERL_NIF_API_FUNC_DECL(ErlNifIOQueue *,enif_ioq_create,(ErlNifIOQueueOpts opts));
+ERL_NIF_API_FUNC_DECL(void,enif_ioq_destroy,(ErlNifIOQueue *q));
+
+ERL_NIF_API_FUNC_DECL(int,enif_ioq_enq_binary,(ErlNifIOQueue *q, ErlNifBinary *bin, size_t skip));
+ERL_NIF_API_FUNC_DECL(int,enif_ioq_enqv,(ErlNifIOQueue *q, ErlNifIOVec *iov, size_t skip));
+
+ERL_NIF_API_FUNC_DECL(size_t,enif_ioq_size,(ErlNifIOQueue *q));
+ERL_NIF_API_FUNC_DECL(int,enif_ioq_deq,(ErlNifIOQueue *q, size_t count, size_t *size));
+
+ERL_NIF_API_FUNC_DECL(SysIOVec*,enif_ioq_peek,(ErlNifIOQueue *q, int *iovlen));
+
+ERL_NIF_API_FUNC_DECL(int,enif_inspect_iovec,(ErlNifEnv *env, size_t max_length, ERL_NIF_TERM iovec_term, ERL_NIF_TERM *tail, ErlNifIOVec **iovec));
+ERL_NIF_API_FUNC_DECL(void,enif_free_iovec,(ErlNifIOVec *iov));
+
+
 /*
 ** ADD NEW ENTRIES HERE (before this comment) !!!
 */
@@ -348,6 +363,16 @@ ERL_NIF_API_FUNC_DECL(int, enif_whereis_port, (ErlNifEnv *env, ERL_NIF_TERM name
 #  define enif_hash ERL_NIF_API_FUNC_MACRO(enif_hash)
 #  define enif_whereis_pid ERL_NIF_API_FUNC_MACRO(enif_whereis_pid)
 #  define enif_whereis_port ERL_NIF_API_FUNC_MACRO(enif_whereis_port)
+#  define enif_ioq_create ERL_NIF_API_FUNC_MACRO(enif_ioq_create)
+#  define enif_ioq_destroy ERL_NIF_API_FUNC_MACRO(enif_ioq_destroy)
+#  define enif_ioq_enq ERL_NIF_API_FUNC_MACRO(enif_ioq_enq)
+#  define enif_ioq_enq_binary ERL_NIF_API_FUNC_MACRO(enif_ioq_enq_binary)
+#  define enif_ioq_enqv ERL_NIF_API_FUNC_MACRO(enif_ioq_enqv)
+#  define enif_ioq_size ERL_NIF_API_FUNC_MACRO(enif_ioq_size)
+#  define enif_ioq_deq ERL_NIF_API_FUNC_MACRO(enif_ioq_deq)
+#  define enif_ioq_peek ERL_NIF_API_FUNC_MACRO(enif_ioq_peek)
+#  define enif_inspect_iovec ERL_NIF_API_FUNC_MACRO(enif_inspect_iovec)
+#  define enif_free_iovec ERL_NIF_API_FUNC_MACRO(enif_free_iovec)
 
 /*
 ** ADD NEW ENTRIES HERE (before this comment)
diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c
index f8e9fec27a..0f3dfa797c 100644
--- a/erts/emulator/beam/erl_node_tables.c
+++ b/erts/emulator/beam/erl_node_tables.c
@@ -29,6 +29,8 @@
 #include "error.h"
 #include "erl_thr_progress.h"
 #include "dtrace-wrapper.h"
+#include "erl_binary.h"
+#include "erl_bif_unique.h"
 
 Hash erts_dist_table;
 Hash erts_node_table;
@@ -57,6 +59,58 @@ static ErtsMonotonicTime node_tab_delete_delay;
 
 /* -- The distribution table ---------------------------------------------- */
 
+#define ErtsBin2DistEntry(B) \
+    ((DistEntry *) ERTS_MAGIC_BIN_DATA((B)))
+#define ErtsDistEntry2Bin(DEP) \
+    ((Binary *) ERTS_MAGIC_BIN_FROM_DATA((DEP)))
+
+static ERTS_INLINE erts_aint_t
+de_refc_read(DistEntry *dep, erts_aint_t min)
+{
+    return erts_refc_read(&ErtsDistEntry2Bin(dep)->intern.refc, min);
+}
+
+static ERTS_INLINE erts_aint_t
+de_refc_inc_read(DistEntry *dep, erts_aint_t min)
+{
+    return erts_refc_inctest(&ErtsDistEntry2Bin(dep)->intern.refc, min);
+}
+
+static ERTS_INLINE void
+de_refc_inc(DistEntry *dep, erts_aint_t min)
+{
+    erts_refc_inc(&ErtsDistEntry2Bin(dep)->intern.refc, min);
+}
+
+static ERTS_INLINE void
+de_refc_dec(DistEntry *dep, erts_aint_t min)
+{
+#ifdef DEBUG
+    (void) erts_refc_read(&ErtsDistEntry2Bin(dep)->intern.refc, min+1);
+#endif
+    erts_bin_release(ErtsDistEntry2Bin(dep));
+}
+
+static ERTS_INLINE erts_aint_t
+de_refc_dec_read(DistEntry *dep, erts_aint_t min)
+{
+    return erts_refc_dectest(&ErtsDistEntry2Bin(dep)->intern.refc, min);
+}
+
+void
+erts_ref_dist_entry(DistEntry *dep)
+{
+    ASSERT(dep);
+    de_refc_inc(dep, 1);
+}
+
+void
+erts_deref_dist_entry(DistEntry *dep)
+{
+    ASSERT(dep);
+    de_refc_dec(dep, 0);
+}
+
 #ifdef DEBUG
 static int
 is_in_de_list(DistEntry *dep, DistEntry *dep_list)
@@ -85,22 +139,39 @@ dist_table_cmp(void *dep1, void *dep2)
 static void*
 dist_table_alloc(void *dep_tmpl)
 {
+#ifdef DEBUG
+    erts_aint_t refc;
+#endif
     Eterm sysname;
+    Binary *bin;
     DistEntry *dep;
     erts_rwmtx_opt_t rwmtx_opt = ERTS_RWMTX_OPT_DEFAULT_INITER;
     rwmtx_opt.type = ERTS_RWMTX_TYPE_FREQUENT_READ;
 
     sysname = ((DistEntry *) dep_tmpl)->sysname;
-    dep = (DistEntry *) erts_alloc(ERTS_ALC_T_DIST_ENTRY, sizeof(DistEntry));
+
+    bin = erts_create_magic_binary_x(sizeof(DistEntry),
+                                     erts_dist_entry_destructor,
+                                     ERTS_ALC_T_DIST_ENTRY,
+                                     0);
+    dep = ErtsBin2DistEntry(bin);
 
     dist_entries++;
 
+#ifdef DEBUG
+    refc =
+#else
+    (void)
+#endif
+        de_refc_dec_read(dep, -1);
+    ASSERT(refc == -1);
+
     dep->prev				= NULL;
-    erts_refc_init(&dep->refc, -1);
     erts_rwmtx_init_opt(&dep->rwmtx, &rwmtx_opt, "dist_entry", sysname,
         ERTS_LOCK_FLAGS_CATEGORY_DISTRIBUTION);
     dep->sysname			= sysname;
     dep->cid				= NIL;
+    erts_atomic_init_nob(&dep->input_handler, (erts_aint_t) NIL);
     dep->connection_id			= 0;
     dep->status				= 0;
     dep->flags				= 0;
@@ -114,12 +185,16 @@ dist_table_alloc(void *dep_tmpl)
 
     erts_mtx_init(&dep->qlock, "dist_entry_out_queue", sysname,
         ERTS_LOCK_FLAGS_CATEGORY_DISTRIBUTION);
-    dep->qflgs				= 0;
-    dep->qsize				= 0;
+    erts_atomic32_init_nob(&dep->qflgs, 0);
+    erts_atomic_init_nob(&dep->qsize, 0);
+    erts_atomic64_init_nob(&dep->in, 0);
+    erts_atomic64_init_nob(&dep->out, 0);
     dep->out_queue.first		= NULL;
     dep->out_queue.last			= NULL;
     dep->suspended			= NULL;
 
+    dep->tmp_out_queue.first    	= NULL;
+    dep->tmp_out_queue.last     	= NULL;
     dep->finalized_out_queue.first	= NULL;
     dep->finalized_out_queue.last	= NULL;
 
@@ -181,7 +256,7 @@ dist_table_free(void *vdep)
 #ifdef DEBUG
     sys_memset(vdep, 0x77, sizeof(DistEntry));
 #endif
-    erts_free(ERTS_ALC_T_DIST_ENTRY, (void *) dep);
+    erts_bin_free(ErtsDistEntry2Bin(dep));
 
     ASSERT(dist_entries > 0);
     dist_entries--;
@@ -199,19 +274,52 @@ erts_dist_table_info(fmtfn_t to, void *to_arg)
 	erts_rwmtx_runlock(&erts_dist_table_rwmtx);
 }
 
+static ERTS_INLINE DistEntry *find_dist_entry(Eterm sysname,
+                                              int inc_refc,
+                                              int connected_only)
+{
+    DistEntry *res;
+    DistEntry de;
+    de.sysname = sysname;
+    erts_rwmtx_rlock(&erts_dist_table_rwmtx);
+    res = hash_get(&erts_dist_table, (void *) &de);
+    if (res) {
+        if (connected_only && is_nil(res->cid))
+            res = NULL;
+        else {
+            int pend_delete;
+            erts_aint_t refc;
+            if (inc_refc) {
+                refc = de_refc_inc_read(res, 1);
+                pend_delete = refc < 2;
+            }
+            else {
+                refc = de_refc_read(res, 0);
+                pend_delete = refc < 1;
+            }
+            if (pend_delete) /* Pending delete */
+                de_refc_inc(res, 1);
+        }
+    }
+    erts_rwmtx_runlock(&erts_dist_table_rwmtx);
+    return res;
+}
+
 DistEntry *
 erts_channel_no_to_dist_entry(Uint cno)
 {
+    /*
+     * Does NOT increase reference count!
+     */
+
 /*
  * For this node (and previous incarnations of this node),
  * ERST_INTERNAL_CHANNEL_NO (will always be 0 I guess) is used as
  * channel no. For other nodes, the atom index of the atom corresponding
  * to the node name is used as channel no.
  */
-    if(cno == ERST_INTERNAL_CHANNEL_NO) {
-	erts_refc_inc(&erts_this_dist_entry->refc, 2);
+    if (cno == ERST_INTERNAL_CHANNEL_NO)
 	return erts_this_dist_entry;
-    }
 
     if((cno > MAX_ATOM_INDEX)
        || (cno >= atom_table_size())
@@ -220,80 +328,97 @@ erts_channel_no_to_dist_entry(Uint cno)
         
     /* cno is a valid atom index; find corresponding dist entry (if there
        is one) */
-    return erts_find_dist_entry(make_atom(cno));
+    return find_dist_entry(make_atom(cno), 0, 0);
 }
 
-
 DistEntry *
 erts_sysname_to_connected_dist_entry(Eterm sysname)
 {
-    DistEntry de;
-    DistEntry *res_dep;
-    de.sysname = sysname;
-  
-    if(erts_this_dist_entry->sysname == sysname) {
-	erts_refc_inc(&erts_this_dist_entry->refc, 2);
+    /*
+     * Does NOT increase reference count!
+     */
+    if(erts_this_dist_entry->sysname == sysname)
 	return erts_this_dist_entry;
-    }
-
-    erts_rwmtx_rlock(&erts_dist_table_rwmtx);
-    res_dep = (DistEntry *) hash_get(&erts_dist_table, (void *) &de);
-    if (res_dep) {
-	erts_aint_t refc = erts_refc_inctest(&res_dep->refc, 1);
-	if (refc < 2) /* Pending delete */
-	    erts_refc_inc(&res_dep->refc, 1);
-    }
-    erts_rwmtx_runlock(&erts_dist_table_rwmtx);
-    if (res_dep) {
-	int deref;
-	erts_rwmtx_rlock(&res_dep->rwmtx);
-	deref = is_nil(res_dep->cid);
-	erts_rwmtx_runlock(&res_dep->rwmtx);
-	if (deref) {
-	    erts_deref_dist_entry(res_dep);
-	    res_dep = NULL;
-	}
-    }
-    return res_dep;
+    return find_dist_entry(sysname, 0, 1);
 }
 
 DistEntry *erts_find_or_insert_dist_entry(Eterm sysname)
 {
+    /*
+     * This function DOES increase reference count!
+     */
     DistEntry *res;
     DistEntry de;
     erts_aint_t refc;
-    res = erts_find_dist_entry(sysname);
+    res = find_dist_entry(sysname, 1, 0);
     if (res)
 	return res;
     de.sysname = sysname;
     erts_rwmtx_rwlock(&erts_dist_table_rwmtx);
     res = hash_put(&erts_dist_table, (void *) &de);
-    refc = erts_refc_inctest(&res->refc, 0);
+    refc = de_refc_inc_read(res, 0);
     if (refc < 2) /* New or pending delete */
-	erts_refc_inc(&res->refc, 1);
+        de_refc_inc(res, 1);
     erts_rwmtx_rwunlock(&erts_dist_table_rwmtx);
     return res;
 }
 
 DistEntry *erts_find_dist_entry(Eterm sysname)
 {
-    DistEntry *res;
-    DistEntry de;
-    de.sysname = sysname;
-    erts_rwmtx_rlock(&erts_dist_table_rwmtx);
-    res = hash_get(&erts_dist_table, (void *) &de);
-    if (res) {
-	erts_aint_t refc = erts_refc_inctest(&res->refc, 1);
-	if (refc < 2) /* Pending delete */
-	    erts_refc_inc(&res->refc, 1);
-    }
-    erts_rwmtx_runlock(&erts_dist_table_rwmtx);
-    return res;
+    /*
+     * Does NOT increase reference count!
+     */
+    return find_dist_entry(sysname, 0, 0);
 }
 
-static void try_delete_dist_entry(void *vdep)
+DistEntry *
+erts_dhandle_to_dist_entry(Eterm dhandle)
 {
-    DistEntry *dep = (DistEntry *) vdep;
+    Binary *bin;
+    if (!is_internal_magic_ref(dhandle))
+        return NULL;
+    bin = erts_magic_ref2bin(dhandle);
+    if (ERTS_MAGIC_BIN_DESTRUCTOR(bin) != erts_dist_entry_destructor)
+        return NULL;
+    return ErtsBin2DistEntry(bin);
+}
+
+Eterm
+erts_make_dhandle(Process *c_p, DistEntry *dep)
+{
+    Binary *bin;
+    Eterm *hp;
+
+    bin = ErtsDistEntry2Bin(dep);
+    ASSERT(bin);
+    ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(bin) == erts_dist_entry_destructor);
+    hp = HAlloc(c_p, ERTS_MAGIC_REF_THING_SIZE);
+    return erts_mk_magic_ref(&hp, &c_p->off_heap, bin);
+}
+
+static void try_delete_dist_entry(void *vbin);
+
+static void
+prepare_try_delete_dist_entry(void *vbin)
+{
+    Binary *bin = (Binary *) vbin;
+    DistEntry *dep = ErtsBin2DistEntry(bin);
+    Uint size;
+    erts_aint_t refc;
+
+    refc = de_refc_read(dep, 0);
+    if (refc > 0)
+        return;
+
+    size = ERTS_MAGIC_BIN_SIZE(sizeof(DistEntry));
+    erts_schedule_thr_prgr_later_cleanup_op(try_delete_dist_entry,
+                                            vbin, &dep->later_op, size);
+}
+
+static void try_delete_dist_entry(void *vbin)
+{
+    Binary *bin = (Binary *) vbin;
+    DistEntry *dep = ErtsBin2DistEntry(bin);
     erts_aint_t refc;
 
     erts_rwmtx_rwlock(&erts_dist_table_rwmtx);
@@ -312,26 +437,39 @@ static void try_delete_dist_entry(void *vdep)
      *
      * If refc > 0, the entry is in use. Keep the entry.
      */
-    refc = erts_refc_dectest(&dep->refc, -1);
+    refc = de_refc_dec_read(dep, -1);
     if (refc == -1)
 	(void) hash_erase(&erts_dist_table, (void *) dep);
     erts_rwmtx_rwunlock(&erts_dist_table_rwmtx);
 
-    if (refc == 0)
-	erts_schedule_delete_dist_entry(dep);
+    if (refc == 0) {
+        if (node_tab_delete_delay == 0)
+            prepare_try_delete_dist_entry(vbin);
+        else if (node_tab_delete_delay > 0)
+            erts_start_timer_callback(node_tab_delete_delay,
+                                      prepare_try_delete_dist_entry,
+                                      vbin);
+    }
 }
 
-void erts_schedule_delete_dist_entry(DistEntry *dep)
+int erts_dist_entry_destructor(Binary *bin)
 {
-    ASSERT(dep != erts_this_dist_entry);
-    if (dep != erts_this_dist_entry) {
-	if (node_tab_delete_delay == 0)
-	    try_delete_dist_entry((void *) dep);
-	else if (node_tab_delete_delay > 0)
-	    erts_start_timer_callback(node_tab_delete_delay,
-				      try_delete_dist_entry,
-				      (void *) dep);
-    }
+    DistEntry *dep = ErtsBin2DistEntry(bin);
+    erts_aint_t refc;
+
+    refc = de_refc_read(dep, -1);
+
+    if (refc == -1)
+        return 1; /* Allow deallocation of structure... */
+
+    if (node_tab_delete_delay == 0)
+        prepare_try_delete_dist_entry((void *) bin);
+    else if (node_tab_delete_delay > 0)
+        erts_start_timer_callback(node_tab_delete_delay,
+                                  prepare_try_delete_dist_entry,
+                                  (void *) bin);
+
+    return 0;
 }
 
 Uint
@@ -384,7 +522,7 @@ erts_set_dist_entry_not_connected(DistEntry *dep)
     erts_rwmtx_rwlock(&erts_dist_table_rwmtx);
 
     ASSERT(dep != erts_this_dist_entry);
-    ASSERT(is_internal_port(dep->cid));
+    ASSERT(is_internal_port(dep->cid) || is_internal_pid(dep->cid));
 
     if(dep->flags & DFLAG_PUBLISHED) {
 	if(dep->prev) {
@@ -439,7 +577,7 @@ erts_set_dist_entry_connected(DistEntry *dep, Eterm cid, Uint flags)
 
     ASSERT(dep != erts_this_dist_entry);
     ASSERT(is_nil(dep->cid));
-    ASSERT(is_internal_port(cid));
+    ASSERT(is_internal_port(cid) || is_internal_pid(cid));
 
     if(dep->prev) {
 	ASSERT(is_in_de_list(dep, erts_not_connected_dist_entries));
@@ -459,10 +597,19 @@ erts_set_dist_entry_connected(DistEntry *dep, Eterm cid, Uint flags)
     dep->status |= ERTS_DE_SFLG_CONNECTED;
     dep->flags = flags;
     dep->cid = cid;
+    erts_atomic_set_nob(&dep->input_handler,
+                            (erts_aint_t) cid);
+
     dep->connection_id++;
     dep->connection_id &= ERTS_DIST_EXT_CON_ID_MASK;
     dep->prev = NULL;
 
+    erts_atomic64_set_nob(&dep->in, 0);
+    erts_atomic64_set_nob(&dep->out, 0);
+    erts_atomic32_set_nob(&dep->qflgs,
+                          (is_internal_port(cid)
+                           ? ERTS_DE_QFLG_PORT_CTRL
+                           : ERTS_DE_QFLG_PROC_CTRL));
     if(flags & DFLAG_PUBLISHED) {
 	dep->next = erts_visible_dist_entries;
 	if(erts_visible_dist_entries) {
@@ -716,19 +863,18 @@ void
 erts_set_this_node(Eterm sysname, Uint creation)
 {
     ERTS_LC_ASSERT(erts_thr_progress_is_blocking());
-    ASSERT(erts_refc_read(&erts_this_dist_entry->refc, 2));
+    ASSERT(2 <= de_refc_read(erts_this_dist_entry, 2));
 
     if (erts_refc_dectest(&erts_this_node->refc, 0) == 0)
         try_delete_node(erts_this_node);
 
-    if (erts_refc_dectest(&erts_this_dist_entry->refc, 0) == 0)
-        try_delete_dist_entry(erts_this_dist_entry);
+    erts_deref_dist_entry(erts_this_dist_entry);
 
     erts_this_node = NULL; /* to make sure refc is bumped for this node */
     erts_this_node = erts_find_or_insert_node(sysname, creation);
     erts_this_dist_entry = erts_this_node->dist_entry;
 
-    erts_refc_inc(&erts_this_dist_entry->refc, 2);
+    erts_ref_dist_entry(erts_this_dist_entry);
 
     erts_this_node_sysname = erts_this_node_sysname_BUFFER;
     erts_snprintf(erts_this_node_sysname, sizeof(erts_this_node_sysname_BUFFER),
@@ -797,9 +943,9 @@ void erts_init_node_tables(int dd_sec)
     ASSERT(erts_this_node->dist_entry != NULL);
     erts_this_dist_entry = erts_this_node->dist_entry;
     /* +1 for erts_this_dist_entry */
-    /* +1 for erts_this_node->dist_entry */
-    erts_refc_init(&erts_this_dist_entry->refc, 2);
+    erts_ref_dist_entry(erts_this_dist_entry);
 
+    ASSERT(2 == de_refc_read(erts_this_dist_entry, 2));
 
     erts_this_node_sysname = erts_this_node_sysname_BUFFER;
     erts_snprintf(erts_this_node_sysname, sizeof(erts_this_node_sysname_BUFFER),
@@ -876,6 +1022,7 @@ static Eterm AM_node_references;
 static Eterm AM_system;
 static Eterm AM_timer;
 static Eterm AM_delayed_delete_timer;
+static Eterm AM_thread_progress_delete_timer;
 
 static void setup_reference_table(void);
 static Eterm reference_table_term(Uint **hpp, ErlOffHeap *ohp, Uint *szp);
@@ -965,6 +1112,7 @@ erts_get_node_and_dist_references(struct process *proc)
 	INIT_AM(timer);
 	INIT_AM(system);
 	INIT_AM(delayed_delete_timer);
+        INIT_AM(thread_progress_delete_timer);
 	references_atoms_need_init = 0;
     }
 
@@ -1148,6 +1296,10 @@ insert_offheap2(ErlOffHeap *oh, void *arg)
     insert_offheap(oh, a->type, a->id);
 }
 
+#define ErtsIsDistEntryBinary(Bin)                                      \
+    (((Bin)->intern.flags & BIN_FLAG_MAGIC)                             \
+     && ERTS_MAGIC_BIN_DESTRUCTOR((Bin)) == erts_dist_entry_destructor)
+
 static void
 insert_offheap(ErlOffHeap *oh, int type, Eterm id)
 {
@@ -1158,7 +1310,10 @@ insert_offheap(ErlOffHeap *oh, int type, Eterm id)
     for (u.hdr = oh->first; u.hdr; u.hdr = u.hdr->next) {
 	switch (thing_subtag(u.hdr->thing_word)) {
 	case REF_SUBTAG:
-	    if(IsMatchProgBinary(u.mref->mb)) {
+            if (ErtsIsDistEntryBinary(u.mref->mb))
+                insert_dist_entry(ErtsBin2DistEntry(u.mref->mb),
+                                  type, id, 0);
+	    else if(IsMatchProgBinary(u.mref->mb)) {
 		InsertedBin *ib;
 		int insert_bin = 1;
 		for (ib = inserted_bins; ib; ib = ib->next)
@@ -1301,26 +1456,34 @@ insert_delayed_delete_node(void *state,
 			   ErtsMonotonicTime timeout_pos,
 			   void *vnp)
 {
-    DeclareTmpHeapNoproc(heap,3);
-    UseTmpHeapNoproc(3);
+    Eterm heap[3];
     insert_node((ErlNode *) vnp,
 		SYSTEM_REF,
 		TUPLE2(&heap[0], AM_system, AM_delayed_delete_timer));
-    UnUseTmpHeapNoproc(3);
+}
+
+static void
+insert_thr_prgr_delete_dist_entry(void *arg, ErtsThrPrgrVal thr_prgr, void *vbin)
+{
+    DistEntry *dep = ErtsBin2DistEntry(vbin);
+    Eterm heap[3];
+    insert_dist_entry(dep,
+		      SYSTEM_REF,
+		      TUPLE2(&heap[0], AM_system, AM_thread_progress_delete_timer),
+		      0);
 }
 
 static void
 insert_delayed_delete_dist_entry(void *state,
 				 ErtsMonotonicTime timeout_pos,
-				 void *vdep)
+				 void *vbin)
 {
-    DeclareTmpHeapNoproc(heap,3);
-    UseTmpHeapNoproc(3);
-    insert_dist_entry((DistEntry *) vdep,
+    DistEntry *dep = ErtsBin2DistEntry(vbin);
+    Eterm heap[3];
+    insert_dist_entry(dep,
 		      SYSTEM_REF,
 		      TUPLE2(&heap[0], AM_system, AM_delayed_delete_timer),
 		      0);
-    UnUseTmpHeapNoproc(3);
 }
 
 static void
@@ -1354,9 +1517,12 @@ setup_reference_table(void)
     erts_debug_callback_timer_foreach(try_delete_node,
 				      insert_delayed_delete_node,
 				      NULL);
-    erts_debug_callback_timer_foreach(try_delete_dist_entry,
+    erts_debug_callback_timer_foreach(prepare_try_delete_dist_entry,
 				      insert_delayed_delete_dist_entry,
 				      NULL);
+    erts_debug_later_op_foreach(try_delete_dist_entry,
+                                insert_thr_prgr_delete_dist_entry,
+                                NULL);
 
     UseTmpHeapNoproc(3);
     insert_node(erts_this_node,
@@ -1421,6 +1587,14 @@ setup_reference_table(void)
 		insert_links(ERTS_P_LINKS(proc), proc->common.id);
 	    if (ERTS_P_MONITORS(proc))
 		insert_monitors(ERTS_P_MONITORS(proc), proc->common.id);
+            {
+                DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(proc);
+                if (dep)
+                    insert_dist_entry(dep,
+                                      CTRL_REF,
+                                      proc->common.id,
+                                      0);
+            }
 	}
     }
     
@@ -1719,7 +1893,7 @@ reference_table_term(Uint **hpp, ErlOffHeap *ohp, Uint *szp)
 
 	/* DistList = [{Dist, Refc, ReferenceIdList}] */
 	tup = MK_3TUP(referred_dists[i].dist->sysname,
-		      MK_UINT(erts_refc_read(&referred_dists[i].dist->refc, 0)),
+		      MK_UINT(de_refc_read(referred_dists[i].dist, 0)),
 		      dril);
 	dl = MK_CONS(tup, dl);
     }
diff --git a/erts/emulator/beam/erl_node_tables.h b/erts/emulator/beam/erl_node_tables.h
index 7974b25444..3bba673435 100644
--- a/erts/emulator/beam/erl_node_tables.h
+++ b/erts/emulator/beam/erl_node_tables.h
@@ -47,6 +47,9 @@
 #define ERTS_PORT_TASK_ONLY_BASIC_TYPES__
 #include "erl_port_task.h"
 #undef ERTS_PORT_TASK_ONLY_BASIC_TYPES__
+#define ERTS_BINARY_TYPES_ONLY__
+#include "erl_binary.h"
+#undef ERTS_BINARY_TYPES_ONLY__
 
 #define ERTS_NODE_TAB_DELAY_GC_DEFAULT (60)
 #define ERTS_NODE_TAB_DELAY_GC_MAX (100*1000*1000)
@@ -60,11 +63,17 @@
 #define ERTS_DE_SFLGS_ALL			(ERTS_DE_SFLG_CONNECTED \
 						 | ERTS_DE_SFLG_EXITING)
 
-#define ERTS_DE_QFLG_BUSY			(((Uint32) 1) <<  0)
-#define ERTS_DE_QFLG_EXIT			(((Uint32) 1) <<  1)
+#define ERTS_DE_QFLG_BUSY			(((erts_aint32_t) 1) <<  0)
+#define ERTS_DE_QFLG_EXIT			(((erts_aint32_t) 1) <<  1)
+#define ERTS_DE_QFLG_REQ_INFO			(((erts_aint32_t) 1) <<  2)
+#define ERTS_DE_QFLG_PORT_CTRL                  (((erts_aint32_t) 1) <<  3)
+#define ERTS_DE_QFLG_PROC_CTRL                  (((erts_aint32_t) 1) <<  4)
 
 #define ERTS_DE_QFLGS_ALL			(ERTS_DE_QFLG_BUSY \
-						 | ERTS_DE_QFLG_EXIT)
+						 | ERTS_DE_QFLG_EXIT \
+                                                 | ERTS_DE_QFLG_REQ_INFO \
+                                                 | ERTS_DE_QFLG_PORT_CTRL \
+                                                 | ERTS_DE_QFLG_PROC_CTRL)
 
 #if defined(ARCH_64)
 #define ERTS_DIST_OUTPUT_BUF_DBG_PATTERN ((Uint) 0xf713f713f713f713UL)
@@ -106,12 +115,13 @@ typedef struct dist_entry_ {
     HashBucket hash_bucket;     /* Hash bucket */
     struct dist_entry_ *next;	/* Next entry in dist_table (not sorted) */
     struct dist_entry_ *prev;	/* Previous entry in dist_table (not sorted) */
-    erts_refc_t refc;		/* Reference count */
 
-    erts_rwmtx_t rwmtx;     /* Protects all fields below until lck_mtx. */
+    erts_rwmtx_t rwmtx;         /* Protects all fields below until lck_mtx. */
     Eterm sysname;		/* name@host atom for efficiency */
     Uint32 creation;		/* creation of connected node */
-    Eterm cid;			/* connection handler (pid or port), NIL == free */
+    erts_atomic_t input_handler; /* Input handler */
+    Eterm cid;			/* connection handler (pid or port),
+                                   NIL == free */
     Uint32 connection_id;	/* Connection id incremented on connect */
     Uint32 status;		/* Slot status, like exiting reserved etc */
     Uint32 flags;		/* Distribution flags, like hidden, 
@@ -119,7 +129,7 @@ typedef struct dist_entry_ {
     unsigned long version;	/* Protocol version */
 
 
-    erts_mtx_t lnk_mtx;     /* Protects node_links, nlinks, and
+    erts_mtx_t lnk_mtx;         /* Protects node_links, nlinks, and
 				   monitors. */
     ErtsLink *node_links;       /* In a dist entry, node links are kept 
 				   in a separate tree, while they are 
@@ -131,12 +141,15 @@ typedef struct dist_entry_ {
     ErtsLink *nlinks;           /* Link tree with subtrees */
     ErtsMonitor *monitors;      /* Monitor tree */
 
-    erts_mtx_t qlock;       /* Protects qflgs and out_queue */
-    Uint32 qflgs;
-    Sint qsize;
+    erts_mtx_t qlock;           /* Protects qflgs and out_queue */
+    erts_atomic32_t qflgs;
+    erts_atomic_t qsize;
+    erts_atomic64_t in;
+    erts_atomic64_t out;
     ErtsDistOutputQueue out_queue;
     struct ErtsProcList_ *suspended;
 
+    ErtsDistOutputQueue tmp_out_queue;
     ErtsDistOutputQueue finalized_out_queue;
     erts_atomic_t dist_cmd_scheduled;
     ErtsPortTaskHandle dist_cmd;
@@ -144,6 +157,8 @@ typedef struct dist_entry_ {
     Uint (*send)(Port *prt, ErtsDistOutputBuf *obuf);
 
     struct cache* cache;	/* The atom cache */
+
+    ErtsThrPrgrLaterOp later_op;
 } DistEntry;
 
 typedef struct erl_node_ {
@@ -193,12 +208,12 @@ Eterm erts_get_node_and_dist_references(struct process *);
 int erts_lc_is_de_rwlocked(DistEntry *);
 int erts_lc_is_de_rlocked(DistEntry *);
 #endif
+int erts_dist_entry_destructor(Binary *bin);
+DistEntry *erts_dhandle_to_dist_entry(Eterm dhandle);
+Eterm erts_make_dhandle(Process *c_p, DistEntry *dep);
+void erts_ref_dist_entry(DistEntry *dep);
+void erts_deref_dist_entry(DistEntry *dep);
 
-#ifdef ERTS_ENABLE_LOCK_COUNT
-void erts_lcnt_update_distribution_locks(int enable);
-#endif
-
-ERTS_GLB_INLINE void erts_deref_dist_entry(DistEntry *dep);
 ERTS_GLB_INLINE void erts_deref_node_entry(ErlNode *np);
 ERTS_GLB_INLINE void erts_de_rlock(DistEntry *dep);
 ERTS_GLB_INLINE void erts_de_runlock(DistEntry *dep);
@@ -210,14 +225,6 @@ ERTS_GLB_INLINE void erts_de_links_unlock(DistEntry *dep);
 #if ERTS_GLB_INLINE_INCL_FUNC_DEF
 
 ERTS_GLB_INLINE void
-erts_deref_dist_entry(DistEntry *dep)
-{
-    ASSERT(dep);
-    if (erts_refc_dectest(&dep->refc, 0) == 0)
-	erts_schedule_delete_dist_entry(dep);
-}
-
-ERTS_GLB_INLINE void
 erts_deref_node_entry(ErlNode *np)
 {
     ASSERT(np);
diff --git a/erts/emulator/beam/erl_port.h b/erts/emulator/beam/erl_port.h
index 98e9b9ccaf..9117eb1f72 100644
--- a/erts/emulator/beam/erl_port.h
+++ b/erts/emulator/beam/erl_port.h
@@ -31,6 +31,9 @@ typedef struct ErtsProc2PortSigData_ ErtsProc2PortSigData;
 #include "erl_ptab.h"
 #include "erl_thr_progress.h"
 #include "erl_trace.h"
+#define ERTS_IO_QUEUE_TYPES_ONLY__
+#include "erl_io_queue.h"
+#undef ERTS_IO_QUEUE_TYPES_ONLY__
 
 #ifndef __WIN32__
 #define ERTS_DEFAULT_MAX_PORTS (1 << 16)
@@ -75,23 +78,8 @@ typedef struct erts_driver_t_ erts_driver_t;
 #define ERTS_Port2ErlDrvPort(PH) ((ErlDrvPort) (PH))
 #endif
 
-#define SMALL_IO_QUEUE 5   /* Number of fixed elements */
+typedef ErtsIOQueue ErlPortIOQueue;
 
-typedef struct {
-    ErlDrvSizeT size;       /* total size in bytes */
-
-    SysIOVec* v_start;
-    SysIOVec* v_end;
-    SysIOVec* v_head;
-    SysIOVec* v_tail;
-    SysIOVec  v_small[SMALL_IO_QUEUE];
-
-    ErlDrvBinary** b_start;
-    ErlDrvBinary** b_end;
-    ErlDrvBinary** b_head;
-    ErlDrvBinary** b_tail;
-    ErlDrvBinary*  b_small[SMALL_IO_QUEUE];
-} ErlIOQueue;
 
 typedef struct line_buf {  /* Buffer used in line oriented I/O */
     ErlDrvSizeT bufsiz;      /* Size of character buffer */
@@ -165,7 +153,7 @@ struct _erl_drv_port {
     Uint bytes_in;		/* Number of bytes read */
     Uint bytes_out;		/* Number of bytes written */
 
-    ErlIOQueue ioq;              /* driver accessible i/o queue */
+    ErlPortIOQueue ioq;          /* driver accessible i/o queue */
     DistEntry *dist_entry;       /* Dist entry used in DISTRIBUTION */
     char *name;		         /* String used in the open */
     erts_driver_t* drv_ptr;
diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c
index 1420fb9c06..a588477320 100644
--- a/erts/emulator/beam/erl_port_task.c
+++ b/erts/emulator/beam/erl_port_task.c
@@ -36,6 +36,7 @@
 #include "erl_check_io.h"
 #include "dtrace-wrapper.h"
 #include "lttng-wrapper.h"
+#include "erl_check_io.h"
 #include <stdarg.h>
 
 /*
@@ -90,8 +91,6 @@ static void chk_task_queues(Port *pp, ErtsPortTask *execq, int processing_busy_q
 				    erts_atomic_read_nob(&(PP)->run_queue))); \
     } while (0)
 
-erts_atomic_t erts_port_task_outstanding_io_tasks;
-
 #define ERTS_PT_STATE_SCHEDULED		0
 #define ERTS_PT_STATE_ABORTED		1
 #define ERTS_PT_STATE_EXECUTING		2
@@ -99,7 +98,6 @@ erts_atomic_t erts_port_task_outstanding_io_tasks;
 typedef union {
     struct { /* I/O tasks */
 	ErlDrvEvent event;
-	ErlDrvEventData event_data;
     } io;
     struct {
 	ErtsProc2PortSigCallback callback;
@@ -149,10 +147,10 @@ static void begin_port_cleanup(Port *pp,
 			       ErtsPortTask **execq,
 			       int *processing_busy_q_p);
 
-ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(port_task,
-				 ErtsPortTask,
-				 1000,
-				 ERTS_ALC_T_PORT_TASK)
+ERTS_THR_PREF_QUICK_ALLOC_IMPL(port_task,
+                               ErtsPortTask,
+                               1000,
+                               ERTS_ALC_T_PORT_TASK)
 
 ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(busy_caller_table,
 				 ErtsPortTaskBusyCallerTable,
@@ -585,8 +583,9 @@ reset_executed_io_task_handle(ErtsPortTask *ptp)
 {
     if (ptp->u.alive.handle) {
 	ASSERT(ptp == handle2task(ptp->u.alive.handle));
-	erts_io_notify_port_task_executed(ptp->u.alive.handle);
-	reset_port_task_handle(ptp->u.alive.handle);
+        /* The port task handle is reset inside task_executed */
+	erts_io_notify_port_task_executed(ptp->type, ptp->u.alive.handle,
+                                          reset_port_task_handle);
     }
 }
 
@@ -1308,21 +1307,7 @@ erts_port_task_abort(ErtsPortTaskHandle *pthp)
 	if (old_state != ERTS_PT_STATE_SCHEDULED)
 	    res = - 1; /* Task already aborted, executing, or executed */
 	else {
-
 	    reset_port_task_handle(pthp);
-
-	    switch (ptp->type) {
-	    case ERTS_PORT_TASK_INPUT:
-	    case ERTS_PORT_TASK_OUTPUT:
-	    case ERTS_PORT_TASK_EVENT:
-		ASSERT(erts_atomic_read_nob(
-			   &erts_port_task_outstanding_io_tasks) > 0);
-		erts_atomic_dec_relb(&erts_port_task_outstanding_io_tasks);
-		break;
-	    default:
-		break;
-	    }
-
 	    res = 0;
 	}
     }
@@ -1438,10 +1423,10 @@ erts_port_task_schedule(Eterm id,
 	erts_thr_progress_unmanaged_continue(dhndl);
     }
 
-    if (!pp)
-	goto fail;
-
     if (type != ERTS_PORT_TASK_PROC_SIG) {
+        if (!pp)
+            goto fail;
+
 	ptp = port_task_alloc();
 
 	ptp->type = type;
@@ -1459,16 +1444,6 @@ erts_port_task_schedule(Eterm id,
 	va_start(argp, type);
 	ptp->u.alive.td.io.event = va_arg(argp, ErlDrvEvent);
 	va_end(argp);
-	erts_atomic_inc_relb(&erts_port_task_outstanding_io_tasks);
-	break;
-    }
-    case ERTS_PORT_TASK_EVENT: {
-	va_list argp;
-	va_start(argp, type);
-	ptp->u.alive.td.io.event = va_arg(argp, ErlDrvEvent);
-	ptp->u.alive.td.io.event_data = va_arg(argp, ErlDrvEventData);
-	va_end(argp);
-	erts_atomic_inc_relb(&erts_port_task_outstanding_io_tasks);
 	break;
     }
     case ERTS_PORT_TASK_PROC_SIG: {
@@ -1479,6 +1454,9 @@ erts_port_task_schedule(Eterm id,
 	ptp->u.alive.td.psig.callback = va_arg(argp, ErtsProc2PortSigCallback);
  	ptp->u.alive.flags |= va_arg(argp, int);
 	va_end(argp);
+        if (!pp)
+            goto fail;
+
 	if (!(ptp->u.alive.flags & ERTS_PT_FLG_NOSUSPEND))
 	    set_tmp_handle(ptp, pthp);
 	else {
@@ -1641,13 +1619,12 @@ erts_port_task_free_port(Port *pp)
  * scheduling of processes. Run-queue lock should be held by caller.
  */
 
-int
+void
 erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
 {
     Port *pp;
     ErtsPortTask *execq;
     int processing_busy_q;
-    int res = 0;
     int vreds = 0;
     int reds = 0;
     erts_aint_t io_tasks_executed = 0;
@@ -1662,7 +1639,6 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
 
     pp = pop_port(runq);
     if (!pp) {
-	res = 0;
 	goto done;
     }
 
@@ -1765,17 +1741,6 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
 	    reset_executed_io_task_handle(ptp);
 	    io_tasks_executed++;
 	    break;
-	case ERTS_PORT_TASK_EVENT:
-	    reds = ERTS_PORT_REDS_EVENT;
-	    ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0);
-            DTRACE_DRIVER(driver_event, pp);
-            LTTNG_DRIVER(driver_event, pp);
-	    (*pp->drv_ptr->event)((ErlDrvData) pp->drv_data,
-				  ptp->u.alive.td.io.event,
-				  ptp->u.alive.td.io.event_data);
-	    reset_executed_io_task_handle(ptp);
-	    io_tasks_executed++;
-	    break;
 	case ERTS_PORT_TASK_PROC_SIG: {
 	    ErtsProc2PortSigData *sigdp = &ptp->u.alive.td.psig.data;
 	    reset_handle(ptp);
@@ -1840,14 +1805,6 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
     erts_unblock_fpe(fpe_was_unmasked);
     ERTS_MSACC_POP_STATE_M();
 
-
-    if (io_tasks_executed) {
-	ASSERT(erts_atomic_read_nob(&erts_port_task_outstanding_io_tasks)
-	       >= io_tasks_executed);
-	erts_atomic_add_relb(&erts_port_task_outstanding_io_tasks,
-				 -1*io_tasks_executed);
-    }
-
     ASSERT(runq == (ErtsRunQueue *) erts_atomic_read_nob(&pp->run_queue));
 
     active = finalize_exec(pp, &execq, processing_busy_q);
@@ -1888,15 +1845,11 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
     }
 
  done:
-    res = (erts_atomic_read_nob(&erts_port_task_outstanding_io_tasks)
-	   != (erts_aint_t) 0);
 
     runq->scheduler->reductions += reds;
 
     ERTS_LC_ASSERT(erts_lc_runq_is_locked(runq));
     ERTS_PORT_REDUCTIONS_EXECUTED(esdp, runq, reds);
-
-    return res;
 }
 
 static void
@@ -2028,13 +1981,6 @@ begin_port_cleanup(Port *pp, ErtsPortTask **execqp, int *processing_busy_q_p)
 				      DO_WRITE,
 				      1);
 		break;
-	    case ERTS_PORT_TASK_EVENT:
-		erts_stale_drv_select(pp->common.id,
-				      ERTS_Port2ErlDrvPort(pp),
-				      ptp->u.alive.td.io.event,
-				      0,
-				      1);
-		break;
 	    case ERTS_PORT_TASK_DIST_CMD:
 		break;
 	    case ERTS_PORT_TASK_PROC_SIG: {
@@ -2148,8 +2094,7 @@ erts_dequeue_port(ErtsRunQueue *rq)
 void
 erts_port_task_init(void)
 {
-    erts_atomic_init_nob(&erts_port_task_outstanding_io_tasks,
-			     (erts_aint_t) 0);
-    init_port_task_alloc();
+    init_port_task_alloc(erts_no_schedulers + erts_no_poll_threads
+                         + 1); /* aux_thread */
     init_busy_caller_table_alloc();
 }
diff --git a/erts/emulator/beam/erl_port_task.h b/erts/emulator/beam/erl_port_task.h
index 561f4ca936..ae78a7d8a3 100644
--- a/erts/emulator/beam/erl_port_task.h
+++ b/erts/emulator/beam/erl_port_task.h
@@ -56,17 +56,11 @@ typedef erts_atomic_t ErtsPortTaskHandle;
 typedef enum {
     ERTS_PORT_TASK_INPUT,
     ERTS_PORT_TASK_OUTPUT,
-    ERTS_PORT_TASK_EVENT,
     ERTS_PORT_TASK_TIMEOUT,
     ERTS_PORT_TASK_DIST_CMD,
     ERTS_PORT_TASK_PROC_SIG
 } ErtsPortTaskType;
 
-#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
-/* NOTE: Do not access any of the exported variables directly */
-extern erts_atomic_t erts_port_task_outstanding_io_tasks;
-#endif
-
 #define ERTS_PTS_FLG_IN_RUNQ			(((erts_aint32_t) 1) <<  0)
 #define ERTS_PTS_FLG_EXEC			(((erts_aint32_t) 1) <<  1)
 #define ERTS_PTS_FLG_HAVE_TASKS			(((erts_aint32_t) 1) <<  2)
@@ -140,10 +134,6 @@ ERTS_GLB_INLINE void erts_port_task_sched_unlock(ErtsPortTaskSched *ptsp);
 ERTS_GLB_INLINE int erts_port_task_sched_lock_is_locked(ErtsPortTaskSched *ptsp);
 ERTS_GLB_INLINE void erts_port_task_sched_enter_exiting_state(ErtsPortTaskSched *ptsp);
 
-#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
-ERTS_GLB_INLINE int erts_port_task_have_outstanding_io_tasks(void);
-#endif
-
 #if ERTS_GLB_INLINE_INCL_FUNC_DEF
 
 ERTS_GLB_INLINE void
@@ -221,24 +211,16 @@ erts_port_task_sched_enter_exiting_state(ErtsPortTaskSched *ptsp)
     erts_atomic32_read_bor_nob(&ptsp->flags, ERTS_PTS_FLG_EXITING);
 }
 
-#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
-
-ERTS_GLB_INLINE int
-erts_port_task_have_outstanding_io_tasks(void)
-{
-    return (erts_atomic_read_acqb(&erts_port_task_outstanding_io_tasks)
-	    != 0);
-}
-
-#endif /* ERTS_INCLUDE_SCHEDULER_INTERNALS */
-
 #endif
 
 #ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
-int erts_port_task_execute(ErtsRunQueue *, Port **);
+void erts_port_task_execute(ErtsRunQueue *, Port **);
 void erts_port_task_init(void);
 #endif
 
+/* generated for 'port_task' quick allocator */
+void erts_port_task_pre_alloc_init_thread(void);
+
 void erts_port_task_tmp_handle_detach(ErtsPortTaskHandle *);
 int erts_port_task_abort(ErtsPortTaskHandle *);
 
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index c29b13c6c1..3d12b3bc21 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -24,6 +24,8 @@
 #  include "config.h"
 #endif
 
+#define ERTS_WANT_BREAK_HANDLING
+
 #include <stddef.h> /* offsetof() */
 #include "sys.h"
 #include "erl_vm.h"
@@ -49,6 +51,8 @@
 #define ERTS_WANT_TIMER_WHEEL_API
 #include "erl_time.h"
 #include "erl_nfunc_sched.h"
+#include "erl_check_io.h"
+#include "erl_poll.h"
 
 #define ERTS_CHECK_TIME_REDS CONTEXT_REDS
 #define ERTS_DELAYED_WAKEUP_INFINITY (~(Uint64) 0)
@@ -170,7 +174,6 @@ extern BeamInstr beam_exit[];
 extern BeamInstr beam_continue_exit[];
 
 int ERTS_WRITE_UNLIKELY(erts_default_spo_flags) = SPO_ON_HEAP_MSGQ;
-int ERTS_WRITE_UNLIKELY(erts_eager_check_io) = 1;
 int ERTS_WRITE_UNLIKELY(erts_sched_compact_load);
 int ERTS_WRITE_UNLIKELY(erts_sched_balance_util) = 0;
 Uint ERTS_WRITE_UNLIKELY(erts_no_schedulers);
@@ -192,15 +195,13 @@ static UWord thr_prgr_later_cleanup_op_threshold = ERTS_THR_PRGR_LATER_CLEANUP_O
 ErtsPTab erts_proc erts_align_attribute(ERTS_CACHE_LINE_SIZE);
 
 int erts_sched_thread_suggested_stack_size = -1;
-#ifdef ERTS_DIRTY_SCHEDULERS
 int erts_dcpu_sched_thread_suggested_stack_size = -1;
 int erts_dio_sched_thread_suggested_stack_size = -1;
-#endif
 #ifdef ERTS_ENABLE_LOCK_CHECK
 ErtsLcPSDLocks erts_psd_required_locks[ERTS_PSD_SIZE];
 #endif
 
-static struct {
+static struct ErtsSchedBusyWait_ {
     int aux_work;
     int tse;
     int sys_schedule;
@@ -209,27 +210,26 @@ static struct {
 int erts_disable_proc_not_running_opt;
 
 static ErtsAuxWorkData *aux_thread_aux_work_data;
+static ErtsAuxWorkData *poll_thread_aux_work_data;
 
 #define ERTS_SCHDLR_SSPND_CHNG_NMSB		(((erts_aint32_t) 1) << 0)
 #define ERTS_SCHDLR_SSPND_CHNG_MSB		(((erts_aint32_t) 1) << 1)
 #define ERTS_SCHDLR_SSPND_CHNG_ONLN		(((erts_aint32_t) 1) << 2)
 #define ERTS_SCHDLR_SSPND_CHNG_DCPU_ONLN	(((erts_aint32_t) 1) << 3)
 
-typedef struct {
+typedef struct ErtsMultiSchedulingBlock_ {
     int ongoing;
     ErtsProcList *blckrs;
     ErtsProcList *chngq;
 } ErtsMultiSchedulingBlock;
 
-typedef struct {
+typedef struct ErtsSchedTypeCounters_ {
     Uint32 normal;
-#ifdef ERTS_DIRTY_SCHEDULERS
     Uint32 dirty_cpu;
     Uint32 dirty_io;
-#endif
 } ErtsSchedTypeCounters;
 
-static struct {
+static struct ErtsSchedSuspend_ {
     erts_mtx_t mtx;
     ErtsSchedTypeCounters online;
     ErtsSchedTypeCounters curr_online;
@@ -239,9 +239,7 @@ static struct {
     Eterm changer;
     ErtsMultiSchedulingBlock nmsb; /* Normal multi Scheduling Block */
     ErtsMultiSchedulingBlock msb; /* Multi Scheduling Block */
-#ifdef ERTS_DIRTY_SCHEDULERS
     ErtsSchedType last_msb_dirty_type;
-#endif
 } schdlr_sspnd;
 
 static void init_scheduler_suspend(void);
@@ -250,10 +248,8 @@ static ERTS_INLINE Uint32
 schdlr_sspnd_eq_nscheds(ErtsSchedTypeCounters *val1p, ErtsSchedTypeCounters *val2p)
 {
     int res = val1p->normal == val2p->normal;
-#ifdef ERTS_DIRTY_SCHEDULERS
     res &= val1p->dirty_cpu == val2p->dirty_cpu;
     res &= val1p->dirty_io == val2p->dirty_io;
-#endif
     return res;
 }
 
@@ -264,16 +260,10 @@ schdlr_sspnd_get_nscheds(ErtsSchedTypeCounters *valp,
     switch (type) {
     case ERTS_SCHED_NORMAL:
         return valp->normal;
-#ifdef ERTS_DIRTY_SCHEDULERS
     case ERTS_SCHED_DIRTY_CPU:
         return valp->dirty_cpu;
     case ERTS_SCHED_DIRTY_IO:
         return valp->dirty_io;
-#else
-    case ERTS_SCHED_DIRTY_CPU:
-    case ERTS_SCHED_DIRTY_IO:
-        return 0;
-#endif
     default:
 	ERTS_INTERNAL_ERROR("Invalid scheduler type");
 	return 0;
@@ -285,10 +275,8 @@ static ERTS_INLINE Uint32
 schdlr_sspnd_get_nscheds_tot(ErtsSchedTypeCounters *valp)
 {
     Uint32 res = valp->normal;
-#ifdef ERTS_DIRTY_SCHEDULERS
     res += valp->dirty_cpu;
     res += valp->dirty_io;
-#endif
     return res;
 }
 #endif
@@ -303,14 +291,12 @@ schdlr_sspnd_dec_nscheds(ErtsSchedTypeCounters *valp,
     case ERTS_SCHED_NORMAL:
         valp->normal--;
 	break;
-#ifdef ERTS_DIRTY_SCHEDULERS
     case ERTS_SCHED_DIRTY_CPU:
         valp->dirty_cpu--;
 	break;
     case ERTS_SCHED_DIRTY_IO:
         valp->dirty_io--;
 	break;
-#endif
     default:
 	ERTS_INTERNAL_ERROR("Invalid scheduler type");
     }
@@ -324,14 +310,12 @@ schdlr_sspnd_inc_nscheds(ErtsSchedTypeCounters *valp,
     case ERTS_SCHED_NORMAL:
         valp->normal++;
 	break;
-#ifdef ERTS_DIRTY_SCHEDULERS
     case ERTS_SCHED_DIRTY_CPU:
         valp->dirty_cpu++;
 	break;
     case ERTS_SCHED_DIRTY_IO:
         valp->dirty_io++;
 	break;
-#endif
     default:
 	ERTS_INTERNAL_ERROR("Invalid scheduler type");
     }
@@ -345,14 +329,12 @@ schdlr_sspnd_set_nscheds(ErtsSchedTypeCounters *valp,
     case ERTS_SCHED_NORMAL:
         valp->normal = no;
 	break;
-#ifdef ERTS_DIRTY_SCHEDULERS
     case ERTS_SCHED_DIRTY_CPU:
         valp->dirty_cpu = no;
 	break;
     case ERTS_SCHED_DIRTY_IO:
         valp->dirty_io = no;
 	break;
-#endif
     default:
 	ERTS_INTERNAL_ERROR("Invalid scheduler type");
     }
@@ -386,9 +368,6 @@ erts_sched_stat_t erts_sched_stat;
 
 static erts_tsd_key_t ERTS_WRITE_UNLIKELY(sched_data_key);
 
-static erts_atomic32_t function_calls;
-
-static erts_atomic32_t doing_sys_schedule;
 static erts_atomic32_t no_empty_run_queues;
 long erts_runq_supervision_interval = 0;
 static ethr_event runq_supervision_event;
@@ -398,7 +377,6 @@ static erts_atomic_t runq_supervisor_sleeping;
 ErtsAlignedRunQueue * ERTS_WRITE_UNLIKELY(erts_aligned_run_queues);
 Uint ERTS_WRITE_UNLIKELY(erts_no_run_queues);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 struct {
     union {
@@ -411,12 +389,10 @@ struct {
     } io;
 } dirty_count erts_align_attribute(ERTS_CACHE_LINE_SIZE);
 
-#endif
 
 static ERTS_INLINE void
 dirty_active(ErtsSchedulerData *esdp, erts_aint32_t add)
 {
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_aint32_t val;
     erts_atomic32_t *ap;
     switch (esdp->type) {
@@ -441,18 +417,15 @@ dirty_active(ErtsSchedulerData *esdp, erts_aint32_t add)
     val = erts_atomic32_read_nob(ap);
     val += add;
     erts_atomic32_set_nob(ap, val);
-#endif
 }
 
 ErtsAlignedSchedulerData * ERTS_WRITE_UNLIKELY(erts_aligned_scheduler_data);
-#ifdef ERTS_DIRTY_SCHEDULERS
 ErtsAlignedSchedulerData * ERTS_WRITE_UNLIKELY(erts_aligned_dirty_cpu_scheduler_data);
 ErtsAlignedSchedulerData * ERTS_WRITE_UNLIKELY(erts_aligned_dirty_io_scheduler_data);
 typedef union {
     Process dsp;
     char align[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(Process))];
 } ErtsAlignedDirtyShadowProcess;
-#endif
 
 typedef union {
     ErtsSchedulerSleepInfo ssi;
@@ -460,10 +433,9 @@ typedef union {
 } ErtsAlignedSchedulerSleepInfo;
 
 static ErtsAlignedSchedulerSleepInfo *aligned_sched_sleep_info;
-#ifdef ERTS_DIRTY_SCHEDULERS
 static ErtsAlignedSchedulerSleepInfo *aligned_dirty_cpu_sched_sleep_info;
 static ErtsAlignedSchedulerSleepInfo *aligned_dirty_io_sched_sleep_info;
-#endif
+static ErtsAlignedSchedulerSleepInfo *aligned_poll_thread_sleep_info;
 
 static Uint last_reductions;
 static Uint last_exact_reductions;
@@ -531,11 +503,14 @@ ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(proclist,
 				 200,
 				 ERTS_ALC_T_PROC_LIST)
 
+#define ERTS_POLL_THREAD_SLEEP_INFO_IX(IX)                              \
+        (ASSERT(0 <= ((int) (IX))                                       \
+                && ((int) (IX)) < ((int) erts_no_poll_threads)),        \
+         &aligned_poll_thread_sleep_info[(IX)].ssi)
 #define ERTS_SCHED_SLEEP_INFO_IX(IX)					\
-    (ASSERT(-1 <= ((int) (IX))					        \
-		 && ((int) (IX)) < ((int) erts_no_schedulers)),		\
+    (ASSERT(((int)-1) <= ((int) (IX))                 \
+            && ((int) (IX)) < ((int) erts_no_schedulers)),		\
      &aligned_sched_sleep_info[(IX)].ssi)
-#ifdef ERTS_DIRTY_SCHEDULERS
 #define ERTS_DIRTY_CPU_SCHED_SLEEP_INFO_IX(IX)				\
     (ASSERT(0 <= ((int) (IX))					        \
 	    && ((int) (IX)) < ((int) erts_no_dirty_cpu_schedulers)),	\
@@ -544,7 +519,6 @@ ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(proclist,
     (ASSERT(0 <= ((int) (IX))					        \
 	    && ((int) (IX)) < ((int) erts_no_dirty_io_schedulers)),	\
      &aligned_dirty_io_sched_sleep_info[(IX)].ssi)
-#endif
 
 #define ERTS_FOREACH_RUNQ(RQVAR, DO)					\
 do {									\
@@ -776,6 +750,11 @@ erts_pre_init_process(void)
         = ERTS_PSD_ETS_FIXED_TABLES_GET_LOCKS;
     erts_psd_required_locks[ERTS_PSD_ETS_FIXED_TABLES].set_locks
         = ERTS_PSD_ETS_FIXED_TABLES_SET_LOCKS;
+
+    erts_psd_required_locks[ERTS_PSD_DIST_ENTRY].get_locks
+        = ERTS_PSD_DIST_ENTRY_GET_LOCKS;
+    erts_psd_required_locks[ERTS_PSD_DIST_ENTRY].set_locks
+        = ERTS_PSD_DIST_ENTRY_SET_LOCKS;
 #endif
 }
 
@@ -857,7 +836,6 @@ erts_late_init_process(void)
 static void
 init_sched_wall_time(ErtsSchedulerData *esdp, Uint64 time_stamp)
 {
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (esdp->type != ERTS_SCHED_NORMAL) {
         erts_atomic32_init_nob(&esdp->sched_wall_time.u.mod, 0);
         esdp->sched_wall_time.enabled = 1;
@@ -866,7 +844,6 @@ init_sched_wall_time(ErtsSchedulerData *esdp, Uint64 time_stamp)
         esdp->sched_wall_time.working.start = ERTS_SCHED_WTIME_IDLE;
     }
     else
-#endif
     {
         esdp->sched_wall_time.u.need = erts_sched_balance_util;
         esdp->sched_wall_time.enabled = 0;
@@ -1064,7 +1041,6 @@ init_runq_sched_util(ErtsRunQueueSchedUtil *rqsu, int enabled)
 
 #endif /* ERTS_HAVE_SCHED_UTIL_BALANCING_SUPPORT */
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 typedef struct {
     Uint64 working;
@@ -1117,7 +1093,6 @@ read_dirty_sched_wall_time(ErtsSchedulerData *esdp, ErtsDirtySchedWallTime *info
         info->working = info->total;
 }
 
-#endif
 
 
 static void
@@ -1166,13 +1141,11 @@ dirty_sched_wall_time_change(ErtsSchedulerData *esdp, int working)
     mod++;
     erts_atomic32_set_nob(&esdp->sched_wall_time.u.mod, mod);
 
-#if 0
     if (!working) {
-        ERTS_MSACC_SET_STATE_M_X(ERTS_MSACC_STATE_BUSY_WAIT);
+        ERTS_MSACC_SET_STATE_X(ERTS_MSACC_STATE_BUSY_WAIT);
     } else {
-        ERTS_MSACC_SET_STATE_M_X(ERTS_MSACC_STATE_OTHER);
+        ERTS_MSACC_SET_STATE_X(ERTS_MSACC_STATE_OTHER);
     }
-#endif
 }
 
 
@@ -1220,10 +1193,8 @@ typedef struct {
     Eterm ref_heap[ERTS_REF_THING_SIZE];
     Uint req_sched;
     erts_atomic32_t refc;
-#ifdef ERTS_DIRTY_SCHEDULERS
     int want_dirty_cpu;
     int want_dirty_io;
-#endif
 } ErtsSchedWallTimeReq;
 
 typedef struct {
@@ -1294,7 +1265,6 @@ reply_sched_wall_time(void *vswtrp)
     hpp = NULL;
     szp = &sz;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (esdp->sched_wall_time.enabled
         && swtrp->req_sched == esdp->no
         && (swtrp->want_dirty_cpu || swtrp->want_dirty_io)) {
@@ -1376,7 +1346,6 @@ reply_sched_wall_time(void *vswtrp)
         erts_free(ERTS_ALC_T_TMP, dswt);
     }
     else
-#endif
     {
         /* Reply with info about this scheduler only... */
 
@@ -1444,10 +1413,8 @@ erts_sched_wall_time_request(Process *c_p, int set, int enable,
     swtrp->proc = c_p;
     swtrp->ref = STORE_NC(&hp, NULL, ref);
     swtrp->req_sched = esdp->no;
-#ifdef ERTS_DIRTY_SCHEDULERS
     swtrp->want_dirty_cpu = want_dirty_cpu;
     swtrp->want_dirty_io = want_dirty_io;
-#endif
     erts_atomic32_init_nob(&swtrp->refc,
 			       (erts_aint32_t) erts_no_schedulers);
 
@@ -1559,6 +1526,12 @@ erts_proclist_create(Process *p)
     return proclist_create(p);
 }
 
+ErtsProcList *
+erts_proclist_copy(ErtsProcList *plp)
+{
+    return proclist_copy(plp);
+}
+
 void
 erts_proclist_destroy(ErtsProcList *plp)
 {
@@ -1590,18 +1563,19 @@ erts_psd_set_init(Process *p, int ix, void *data)
 
 
 void
-erts_sched_finish_poke(ErtsSchedulerSleepInfo *ssi, erts_aint32_t flags)
+erts_sched_finish_poke(ErtsSchedulerSleepInfo *ssi,
+                       erts_aint32_t flags)
 {
     switch (flags & ERTS_SSI_FLGS_SLEEP_TYPE) {
     case ERTS_SSI_FLG_POLL_SLEEPING:
-	erts_sys_schedule_interrupt(1);
+	erts_check_io_interrupt(ssi->psi, 1);
 	break;
     case ERTS_SSI_FLG_POLL_SLEEPING|ERTS_SSI_FLG_TSE_SLEEPING:
 	/*
 	 * Thread progress blocking while poll sleeping; need
 	 * to signal on both...
 	 */
-	erts_sys_schedule_interrupt(1);
+	erts_check_io_interrupt(ssi->psi, 1);
 	/* fall through */
     case ERTS_SSI_FLG_TSE_SLEEPING:
 	erts_tse_set(ssi->event);
@@ -2861,36 +2835,6 @@ erts_set_aux_work_timeout(int ix, erts_aint32_t type, int enable)
     return old;
 }
 
-
-
-static ERTS_INLINE void
-sched_waiting_sys(Uint no, ErtsRunQueue *rq)
-{
-    ERTS_LC_ASSERT(erts_lc_runq_is_locked(rq));
-    ASSERT(rq->waiting >= 0);
-    (void) ERTS_RUNQ_FLGS_SET(rq, (ERTS_RUNQ_FLG_OUT_OF_WORK
-				   | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK));
-    rq->waiting++;
-    rq->waiting *= -1;
-    rq->woken = 0;
-    if (erts_system_profile_flags.scheduler)
-	profile_scheduler(make_small(no), am_inactive);
-}
-
-static ERTS_INLINE void
-sched_active_sys(Uint no, ErtsRunQueue *rq)
-{
-    ERTS_LC_ASSERT(erts_lc_runq_is_locked(rq));
-
-    ASSERT(!ERTS_RUNQ_IX_IS_DIRTY(rq->ix));
-
-    ASSERT(rq->waiting < 0);
-    rq->waiting *= -1;
-    rq->waiting--;
-    if (erts_system_profile_flags.scheduler)
-	profile_scheduler(make_small(no), am_active);
-}
-
 Uint
 erts_active_schedulers(void)
 {
@@ -2901,49 +2845,6 @@ erts_active_schedulers(void)
     return as;
 }
 
-
-static ERTS_INLINE void
-clear_sys_scheduling(void)
-{
-    erts_atomic32_set_mb(&doing_sys_schedule, 0);
-}
-
-static ERTS_INLINE int
-try_set_sys_scheduling(void)
-{
-    return 0 == erts_atomic32_cmpxchg_acqb(&doing_sys_schedule, 1, 0);
-}
-
-
-static ERTS_INLINE int
-prepare_for_sys_schedule(int non_blocking)
-{
-    if (non_blocking && erts_eager_check_io) {
-	return try_set_sys_scheduling();
-    }
-    else {
-	while (!erts_port_task_have_outstanding_io_tasks()
-	       && try_set_sys_scheduling()) {
-	    if (!erts_port_task_have_outstanding_io_tasks())
-		return 1;
-	    clear_sys_scheduling();
-	}
-	return 0;
-    }
-}
-
-
-static ERTS_INLINE void
-sched_change_waiting_sys_to_waiting(Uint no, ErtsRunQueue *rq)
-{
-    ERTS_LC_ASSERT(erts_lc_runq_is_locked(rq));
-
-    ASSERT(!ERTS_RUNQ_IX_IS_DIRTY(rq->ix));
-
-    ASSERT(rq->waiting < 0);
-    rq->waiting *= -1;
-}
-
 static ERTS_INLINE void
 sched_waiting(Uint no, ErtsRunQueue *rq)
 {
@@ -3115,7 +3016,7 @@ sched_set_sleeptype(ErtsSchedulerSleepInfo *ssi, erts_aint32_t sleep_type)
 	erts_tse_reset(ssi->event);
     else {
 	ASSERT(sleep_type == ERTS_SSI_FLG_POLL_SLEEPING);
-	erts_sys_schedule_interrupt(0);
+        erts_check_io_interrupt(ssi->psi, 0);
     }
 
     while (1) {
@@ -3183,6 +3084,12 @@ thr_prgr_fin_wait(void *vssi)
 
 static void init_aux_work_data(ErtsAuxWorkData *awdp, ErtsSchedulerData *esdp, char *dawwp);
 
+void
+erts_aux_thread_poke()
+{
+    erts_sched_poke(ERTS_SCHED_SLEEP_INFO_IX(-1));
+}
+
 static void *
 aux_thread(void *unused)
 {
@@ -3191,6 +3098,7 @@ aux_thread(void *unused)
     erts_aint32_t aux_work;
     ErtsThrPrgrCallbacks callbacks;
     int thr_prgr_active = 1;
+    ERTS_MSACC_DECLARE_CACHE();
 
 #ifdef ERTS_ENABLE_LOCK_CHECK
     {
@@ -3199,6 +3107,7 @@ aux_thread(void *unused)
     }
 #endif
 
+    erts_port_task_pre_alloc_init_thread();
     ssi->event = erts_tse_fetch();
 
     erts_msacc_init_thread("aux", 1, 1);
@@ -3213,9 +3122,14 @@ aux_thread(void *unused)
     init_aux_work_data(awdp, NULL, NULL);
     awdp->ssi = ssi;
 
+#if ERTS_POLL_USE_FALLBACK
+    ssi->psi = erts_create_pollset_thread(-1);
+#endif
 
     sched_prep_spin_wait(ssi);
 
+    ERTS_MSACC_SET_STATE_CACHED(ERTS_MSACC_STATE_OTHER);
+
     while (1) {
 	erts_aint32_t flgs;
 
@@ -3224,30 +3138,54 @@ aux_thread(void *unused)
 	    if (!thr_prgr_active)
 		erts_thr_progress_active(NULL, thr_prgr_active = 1);
 	    aux_work = handle_aux_work(awdp, aux_work, 1);
+            ERTS_MSACC_UPDATE_CACHE();
 	    if (aux_work && erts_thr_progress_update(NULL))
 		erts_thr_progress_leader_update(NULL);
 	}
 
 	if (!aux_work) {
+
+#ifdef ERTS_BREAK_REQUESTED
+            if (ERTS_BREAK_REQUESTED)
+                erts_do_break_handling();
+#endif
+
 	    if (thr_prgr_active)
 		erts_thr_progress_active(NULL, thr_prgr_active = 0);
-	    erts_thr_progress_prepare_wait(NULL);
+
+#if ERTS_POLL_USE_FALLBACK
 
 	    flgs = sched_spin_wait(ssi, 0);
 
 	    if (flgs & ERTS_SSI_FLG_SLEEPING) {
 		ASSERT(flgs & ERTS_SSI_FLG_WAITING);
+		flgs = sched_set_sleeptype(ssi, ERTS_SSI_FLG_POLL_SLEEPING);
+		if (flgs & ERTS_SSI_FLG_SLEEPING) {
+		    ASSERT(flgs & ERTS_SSI_FLG_POLL_SLEEPING);
+		    ASSERT(flgs & ERTS_SSI_FLG_WAITING);
+                    erts_check_io(ssi->psi);
+		}
+            }
+#else
+            erts_thr_progress_prepare_wait(NULL);
+
+	    flgs = sched_spin_wait(ssi, 0);
+
+	    if (flgs & ERTS_SSI_FLG_SLEEPING) {
 		flgs = sched_set_sleeptype(ssi, ERTS_SSI_FLG_TSE_SLEEPING);
 		if (flgs & ERTS_SSI_FLG_SLEEPING) {
-		    int res;
+                    int res;
 		    ASSERT(flgs & ERTS_SSI_FLG_TSE_SLEEPING);
 		    ASSERT(flgs & ERTS_SSI_FLG_WAITING);
-		    do {
-			res = erts_tse_wait(ssi->event);
-		    } while (res == EINTR);
+                    ERTS_MSACC_SET_STATE_CACHED(ERTS_MSACC_STATE_SLEEP);
+                    do {
+                        res = erts_tse_wait(ssi->event);
+                    } while (res == EINTR);
+                    ERTS_MSACC_SET_STATE_CACHED(ERTS_MSACC_STATE_OTHER);
 		}
-	    }
-	    erts_thr_progress_finalize_wait(NULL);
+            }
+            erts_thr_progress_finalize_wait(NULL);
+#endif
 	}
 
 	flgs = sched_prep_spin_wait(ssi);
@@ -3255,8 +3193,79 @@ aux_thread(void *unused)
     return NULL;
 }
 
-static void suspend_scheduler(ErtsSchedulerData *esdp);
+static void *
+poll_thread(void *arg)
+{
+    int id = (int)(UWord)arg;
+    ErtsAuxWorkData *awdp = poll_thread_aux_work_data+id;
+    ErtsSchedulerSleepInfo *ssi = ERTS_POLL_THREAD_SLEEP_INFO_IX(id);
+    erts_aint32_t aux_work;
+    ErtsThrPrgrCallbacks callbacks;
+    int thr_prgr_active = 1;
+    struct erts_poll_thread *psi = erts_create_pollset_thread(id);
+    ERTS_MSACC_DECLARE_CACHE();
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+    {
+	char buf[] = "poll_thread";
+	erts_lc_set_thread_name(buf);
+    }
+#endif
+
+    erts_port_task_pre_alloc_init_thread();
+    ssi->event = erts_tse_fetch();
+
+    erts_msacc_init_thread("poll", id, 0);
+
+    callbacks.arg = (void *) ssi;
+    callbacks.wakeup = thr_prgr_wakeup;
+    callbacks.prepare_wait = thr_prgr_prep_wait;
+    callbacks.wait = thr_prgr_wait;
+    callbacks.finalize_wait = thr_prgr_fin_wait;
 
+    erts_thr_progress_register_managed_thread(NULL, &callbacks, 0);
+    init_aux_work_data(awdp, NULL, NULL);
+    awdp->ssi = ssi;
+    ssi->psi = psi;
+
+    sched_prep_spin_wait(ssi);
+
+    ERTS_MSACC_SET_STATE_CACHED(ERTS_MSACC_STATE_OTHER);
+
+    while (1) {
+	erts_aint32_t flgs;
+
+	aux_work = erts_atomic32_read_acqb(&ssi->aux_work);
+	if (aux_work) {
+	    if (!thr_prgr_active)
+		erts_thr_progress_active(NULL, thr_prgr_active = 1);
+	    aux_work = handle_aux_work(awdp, aux_work, 1);
+            ERTS_MSACC_UPDATE_CACHE();
+	    if (aux_work && erts_thr_progress_update(NULL))
+		erts_thr_progress_leader_update(NULL);
+	}
+
+	if (!aux_work) {
+	    if (thr_prgr_active)
+		erts_thr_progress_active(NULL, thr_prgr_active = 0);
+
+	    flgs = sched_spin_wait(ssi, 0);
+
+	    if (flgs & ERTS_SSI_FLG_SLEEPING) {
+		ASSERT(flgs & ERTS_SSI_FLG_WAITING);
+		flgs = sched_set_sleeptype(ssi, ERTS_SSI_FLG_POLL_SLEEPING);
+		if (flgs & ERTS_SSI_FLG_SLEEPING) {
+		    ASSERT(flgs & ERTS_SSI_FLG_POLL_SLEEPING);
+		    ASSERT(flgs & ERTS_SSI_FLG_WAITING);
+                    erts_check_io(psi);
+		}
+	    }
+	}
+
+	flgs = sched_prep_spin_wait(ssi);
+    }
+    return NULL;
+}
 
 static void
 scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
@@ -3271,21 +3280,16 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
 
     ERTS_LC_ASSERT(erts_lc_runq_is_locked(rq));
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix))
 	erts_spin_lock(&rq->sleepers.lock);
-#endif
     flgs = sched_prep_spin_wait(ssi);
     if (flgs & ERTS_SSI_FLG_SUSPENDED) {
 	/* Go suspend instead... */
-#ifdef ERTS_DIRTY_SCHEDULERS
 	if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix))
 	    erts_spin_unlock(&rq->sleepers.lock);
-#endif
 	return;
     }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) {
 	ssi->prev = NULL;
 	ssi->next = rq->sleepers.list;
@@ -3295,320 +3299,137 @@ scheduler_wait(int *fcalls, ErtsSchedulerData *esdp, ErtsRunQueue *rq)
 	erts_spin_unlock(&rq->sleepers.lock);
         dirty_active(esdp, -1);
     }
-#endif
-
-    /*
-     * If all schedulers are waiting, one of them *should*
-     * be waiting in erl_sys_schedule()
-     */
-
-    if (ERTS_SCHEDULER_IS_DIRTY(esdp) || !prepare_for_sys_schedule(0)) {
 
-	sched_waiting(esdp->no, rq);
-
-	erts_runq_unlock(rq);
+    sched_waiting(esdp->no, rq);
 
-	spincount = sched_busy_wait.tse;
-
-    tse_wait:
-
-	if (ERTS_SCHEDULER_IS_DIRTY(esdp))
-	    dirty_sched_wall_time_change(esdp, working = 0);
-        else if (thr_prgr_active != working)
-	    sched_wall_time_change(esdp, working = thr_prgr_active);
-
-	while (1) {
-	    ErtsMonotonicTime current_time = 0;
+    erts_runq_unlock(rq);
 
-	    aux_work = erts_atomic32_read_acqb(&ssi->aux_work);
-	    if (aux_work && !ERTS_SCHEDULER_IS_DIRTY(esdp)) {
-		if (!thr_prgr_active) {
-		    erts_thr_progress_active(esdp, thr_prgr_active = 1);
-		    sched_wall_time_change(esdp, 1);
-		}
-		aux_work = handle_aux_work(&esdp->aux_work_data, aux_work, 1);
-                ERTS_MSACC_UPDATE_CACHE();
-		if (aux_work && erts_thr_progress_update(esdp))
-		    erts_thr_progress_leader_update(esdp);
-	    }
+    spincount = sched_busy_wait.tse;
 
-	    if (aux_work) {
-		if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
-		    flgs = erts_atomic32_read_acqb(&ssi->flags);
-		    current_time = erts_get_monotonic_time(esdp);
-		    if (current_time >= erts_next_timeout_time(esdp->next_tmo_ref)) {
-			if (!thr_prgr_active) {
-			    erts_thr_progress_active(esdp, thr_prgr_active = 1);
-			    sched_wall_time_change(esdp, 1);
-			}
-			erts_bump_timers(esdp->timer_wheel, current_time);
-		    }
-		}
-	    }
-	    else {
-		ErtsMonotonicTime timeout_time;
-		int do_timeout = 0;
-		if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
-		    timeout_time = erts_check_next_timeout_time(esdp);
-		    current_time = erts_get_monotonic_time(esdp);
-		    do_timeout = (current_time >= timeout_time);
-		} else {
-		    current_time = 0;
-		    timeout_time = ERTS_MONOTONIC_TIME_MAX;
-		}
-		if (do_timeout) {
-		    if (!thr_prgr_active) {
-			erts_thr_progress_active(esdp, thr_prgr_active = 1);
-			sched_wall_time_change(esdp, 1);
-		    }
-		}
-		else {
-		    if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
-			if (thr_prgr_active) {
-			    erts_thr_progress_active(esdp, thr_prgr_active = 0);
-			    sched_wall_time_change(esdp, 0);
-			}
-			erts_thr_progress_prepare_wait(esdp);
-		    }
+    if (ERTS_SCHEDULER_IS_DIRTY(esdp))
+        dirty_sched_wall_time_change(esdp, working = 0);
+    else if (thr_prgr_active != working)
+        sched_wall_time_change(esdp, working = thr_prgr_active);
 
-		    flgs = sched_spin_wait(ssi, spincount);
-		    if (flgs & ERTS_SSI_FLG_SLEEPING) {
-			ASSERT(flgs & ERTS_SSI_FLG_WAITING);
-			flgs = sched_set_sleeptype(ssi, ERTS_SSI_FLG_TSE_SLEEPING);
-			if (flgs & ERTS_SSI_FLG_SLEEPING) {
-			    int res;
-			    ASSERT(flgs & ERTS_SSI_FLG_TSE_SLEEPING);
-			    ASSERT(flgs & ERTS_SSI_FLG_WAITING);
-			    current_time = ERTS_SCHEDULER_IS_DIRTY(esdp) ? 0 :
-				erts_get_monotonic_time(esdp);
-			    do {
-				Sint64 timeout;
-				if (current_time >= timeout_time)
-				    break;
-				if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
-				    timeout = ERTS_MONOTONIC_TO_NSEC(timeout_time
-								     - current_time
-								     - 1) + 1;
-				} else
-				    timeout = -1;
-                                ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP);
-				res = erts_tse_twait(ssi->event, timeout);
-                                ERTS_MSACC_POP_STATE_M();
-				current_time = ERTS_SCHEDULER_IS_DIRTY(esdp) ? 0 :
-				    erts_get_monotonic_time(esdp);
-			    } while (res == EINTR);
-			}
-		    }
-		    if (!ERTS_SCHEDULER_IS_DIRTY(esdp))
-			erts_thr_progress_finalize_wait(esdp);
-		}
-		if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && current_time >= timeout_time)
-		    erts_bump_timers(esdp->timer_wheel, current_time);
-	    }
+    while (1) {
+        ErtsMonotonicTime current_time = 0;
 
-	    if (!(flgs & ERTS_SSI_FLG_WAITING)) {
-		ASSERT(!(flgs & ERTS_SSI_FLG_SLEEPING));
-		break;
-	    }
+        aux_work = erts_atomic32_read_acqb(&ssi->aux_work);
+        if (aux_work && !ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+            if (!thr_prgr_active) {
+                erts_thr_progress_active(esdp, thr_prgr_active = 1);
+                sched_wall_time_change(esdp, 1);
+            }
+            aux_work = handle_aux_work(&esdp->aux_work_data, aux_work, 1);
+            ERTS_MSACC_UPDATE_CACHE();
+            if (aux_work && erts_thr_progress_update(esdp))
+                erts_thr_progress_leader_update(esdp);
+        }
 
-	    flgs = sched_prep_cont_spin_wait(ssi);
-	    spincount = sched_busy_wait.aux_work;
+        if (aux_work) {
+            if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+                flgs = erts_atomic32_read_acqb(&ssi->flags);
+                current_time = erts_get_monotonic_time(esdp);
+                if (current_time >= erts_next_timeout_time(esdp->next_tmo_ref)) {
+                    if (!thr_prgr_active) {
+                        erts_thr_progress_active(esdp, thr_prgr_active = 1);
+                        sched_wall_time_change(esdp, 1);
+                    }
+                    erts_bump_timers(esdp->timer_wheel, current_time);
+                }
+            }
+        }
+        else {
+            ErtsMonotonicTime timeout_time;
+            int do_timeout = 0;
+            if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+                timeout_time = erts_check_next_timeout_time(esdp);
+                current_time = erts_get_monotonic_time(esdp);
+                do_timeout = (current_time >= timeout_time);
+            } else {
+                current_time = 0;
+                timeout_time = ERTS_MONOTONIC_TIME_MAX;
+            }
+            if (do_timeout) {
+                if (!thr_prgr_active) {
+                    erts_thr_progress_active(esdp, thr_prgr_active = 1);
+                    sched_wall_time_change(esdp, 1);
+                }
+            }
+            else {
+                if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+                    if (thr_prgr_active) {
+                        erts_thr_progress_active(esdp, thr_prgr_active = 0);
+                        sched_wall_time_change(esdp, 0);
+                    }
+                    erts_thr_progress_prepare_wait(esdp);
+                }
 
-	    if (!(flgs & ERTS_SSI_FLG_WAITING)) {
-		ASSERT(!(flgs & ERTS_SSI_FLG_SLEEPING));
-		break;
-	    }
+                flgs = sched_spin_wait(ssi, spincount);
+                if (flgs & ERTS_SSI_FLG_SLEEPING) {
+                    ASSERT(flgs & ERTS_SSI_FLG_WAITING);
+                    flgs = sched_set_sleeptype(ssi, ERTS_SSI_FLG_TSE_SLEEPING);
+                    if (flgs & ERTS_SSI_FLG_SLEEPING) {
+                        int res;
+                        ASSERT(flgs & ERTS_SSI_FLG_TSE_SLEEPING);
+                        ASSERT(flgs & ERTS_SSI_FLG_WAITING);
+                        current_time = ERTS_SCHEDULER_IS_DIRTY(esdp) ? 0 :
+                            erts_get_monotonic_time(esdp);
+                        do {
+                            Sint64 timeout;
+                            if (current_time >= timeout_time)
+                                break;
+                            if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
+                                timeout = ERTS_MONOTONIC_TO_NSEC(timeout_time
+                                                                 - current_time
+                                                                 - 1) + 1;
+                            } else
+                                timeout = -1;
+                            ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP);
+                            res = erts_tse_twait(ssi->event, timeout);
+                            ERTS_MSACC_POP_STATE_M();
+                            current_time = ERTS_SCHEDULER_IS_DIRTY(esdp) ? 0 :
+                                erts_get_monotonic_time(esdp);
+                        } while (res == EINTR);
+                    }
+                }
+                if (!ERTS_SCHEDULER_IS_DIRTY(esdp))
+                    erts_thr_progress_finalize_wait(esdp);
+            }
+            if (!ERTS_SCHEDULER_IS_DIRTY(esdp) && current_time >= timeout_time)
+                erts_bump_timers(esdp->timer_wheel, current_time);
+        }
 
-	}
+        if (!(flgs & ERTS_SSI_FLG_WAITING)) {
+            ASSERT(!(flgs & ERTS_SSI_FLG_SLEEPING));
+            break;
+        }
 
-	if (flgs & ~(ERTS_SSI_FLG_SUSPENDED|ERTS_SSI_FLG_MSB_EXEC))
-	    erts_atomic32_read_band_nob(&ssi->flags,
-                                            (ERTS_SSI_FLG_SUSPENDED
-                                             | ERTS_SSI_FLG_MSB_EXEC));
+        flgs = sched_prep_cont_spin_wait(ssi);
+        spincount = sched_busy_wait.aux_work;
 
-	if (ERTS_SCHEDULER_IS_DIRTY(esdp))
-	    dirty_sched_wall_time_change(esdp, working = 1);
-        else if (!thr_prgr_active) {
-	    erts_thr_progress_active(esdp, thr_prgr_active = 1);
-	    sched_wall_time_change(esdp, 1);
+        if (!(flgs & ERTS_SSI_FLG_WAITING)) {
+            ASSERT(!(flgs & ERTS_SSI_FLG_SLEEPING));
+            break;
         }
 
-	erts_runq_lock(rq);
-	sched_active(esdp->no, rq);
-
     }
-    else
-    {
-
-	erts_atomic32_set_relb(&function_calls, 0);
-	*fcalls = 0;
-
-	ASSERT(!ERTS_SCHEDULER_IS_DIRTY(esdp));
-
-	sched_waiting_sys(esdp->no, rq);
-
-	erts_runq_unlock(rq);
-
-	ASSERT(working);
-	sched_wall_time_change(esdp, working = 0);
-
-	spincount = sched_busy_wait.sys_schedule;
-	if (spincount == 0)
-	    goto sys_aux_work;
-
-	while (spincount-- > 0) {
-	    ErtsMonotonicTime current_time;
-
-	sys_poll_aux_work:
-
-	    if (working)
-		sched_wall_time_change(esdp, working = 0);
 
-	    ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_CHECK_IO);
+    if (flgs & ~(ERTS_SSI_FLG_SUSPENDED|ERTS_SSI_FLG_MSB_EXEC))
+        erts_atomic32_read_band_nob(&ssi->flags,
+                                        (ERTS_SSI_FLG_SUSPENDED
+                                         | ERTS_SSI_FLG_MSB_EXEC));
 
-	    ASSERT(!erts_port_task_have_outstanding_io_tasks());
-            LTTNG2(scheduler_poll, esdp->no, 1);
-	    erl_sys_schedule(1); /* Might give us something to do */
-
-	    ERTS_MSACC_POP_STATE_M();
-
-	    if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
-		current_time = erts_get_monotonic_time(esdp);
-		if (current_time >= erts_next_timeout_time(esdp->next_tmo_ref))
-		    erts_bump_timers(esdp->timer_wheel, current_time);
-	    }
-
-	sys_aux_work:
-
-	    aux_work = erts_atomic32_read_acqb(&ssi->aux_work);
-	    if (aux_work && !ERTS_SCHEDULER_IS_DIRTY(esdp)) {
-		if (!working)
-		    sched_wall_time_change(esdp, working = 1);
-		if (!thr_prgr_active)
-		    erts_thr_progress_active(esdp, thr_prgr_active = 1);
-		aux_work = handle_aux_work(&esdp->aux_work_data, aux_work, 1);
-                ERTS_MSACC_UPDATE_CACHE();
-		if (aux_work && erts_thr_progress_update(esdp))
-		    erts_thr_progress_leader_update(esdp);
-	    }
-
-	    flgs = erts_atomic32_read_acqb(&ssi->flags);
-	    if (!(flgs & ERTS_SSI_FLG_WAITING)) {
-		ASSERT(!(flgs & ERTS_SSI_FLG_SLEEPING));
-		goto sys_woken;
-	    }
-
-	    /*
-	     * If we got new I/O tasks we aren't allowed to
-	     * call erl_sys_schedule() until it is handled.
-	     */
-	    if (erts_port_task_have_outstanding_io_tasks()) {
-		clear_sys_scheduling();
-		/*
-		 * Got to check that we still got I/O tasks; otherwise
-		 * we have to continue checking for I/O...
-		 */
-		if (!prepare_for_sys_schedule(0)) {
-		    spincount *= ERTS_SCHED_TSE_SLEEP_SPINCOUNT_FACT;
-		    goto tse_wait;
-		}
-	    }
-	}
-
-	erts_runq_lock(rq);
-
-	/*
-	 * If we got new I/O tasks we aren't allowed to
-	 * sleep in erl_sys_schedule().
-	 */
-	if (erts_port_task_have_outstanding_io_tasks()) {
-	    clear_sys_scheduling();
-
-	    /*
-	     * Got to check that we still got I/O tasks; otherwise
-	     * we have to wait in erl_sys_schedule() after all...
-	     */
-	    if (!prepare_for_sys_schedule(0)) {
-		/*
-		 * Not allowed to wait in erl_sys_schedule;
-		 * do tse wait instead...
-		 */
-		sched_change_waiting_sys_to_waiting(esdp->no, rq);
-		erts_runq_unlock(rq);
-		spincount = 0;
-		goto tse_wait;
-	    }
-	}
-	if (aux_work) {
-	    erts_runq_unlock(rq);
-	    goto sys_poll_aux_work;
-	}
-	flgs = sched_set_sleeptype(ssi, ERTS_SSI_FLG_POLL_SLEEPING);
-	if (!(flgs & ERTS_SSI_FLG_SLEEPING)) {
-	    if (!(flgs & ERTS_SSI_FLG_WAITING)) {
-		ASSERT(!(flgs & ERTS_SSI_FLG_SLEEPING));
-		goto sys_locked_woken;
-	    }
-	    erts_runq_unlock(rq);
-	    flgs = sched_prep_cont_spin_wait(ssi);
-	    if (!(flgs & ERTS_SSI_FLG_WAITING)) {
-		ASSERT(!(flgs & ERTS_SSI_FLG_SLEEPING));
-		goto sys_woken;
-	    }
-	    ASSERT(!erts_port_task_have_outstanding_io_tasks());
-	    goto sys_poll_aux_work;
-	}
-
-	ASSERT(flgs & ERTS_SSI_FLG_POLL_SLEEPING);
-	ASSERT(flgs & ERTS_SSI_FLG_WAITING);
-
-	erts_runq_unlock(rq);
-
-	if (working)
-	    sched_wall_time_change(esdp, working = 0);
-
-	if (thr_prgr_active)
-	    erts_thr_progress_active(esdp, thr_prgr_active = 0);
-
-	ASSERT(!erts_port_task_have_outstanding_io_tasks());
-
-	ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_CHECK_IO);
-        LTTNG2(scheduler_poll, esdp->no, 0);
-
-	erl_sys_schedule(0);
-
-	ERTS_MSACC_POP_STATE_M();
-
-	if (!ERTS_SCHEDULER_IS_DIRTY(esdp)) {
-	    ErtsMonotonicTime current_time = erts_get_monotonic_time(esdp);
-	    if (current_time >= erts_next_timeout_time(esdp->next_tmo_ref))
-		erts_bump_timers(esdp->timer_wheel, current_time);
-	}
-
-	flgs = sched_prep_cont_spin_wait(ssi);
-	if (flgs & ERTS_SSI_FLG_WAITING)
-	    goto sys_aux_work;
-
-    sys_woken:
-	if (!thr_prgr_active)
-	    erts_thr_progress_active(esdp, thr_prgr_active = 1);
-	erts_runq_lock(rq);
-    sys_locked_woken:
-	if (!thr_prgr_active) {
-	    erts_runq_unlock(rq);
-	    erts_thr_progress_active(esdp, thr_prgr_active = 1);
-	    erts_runq_lock(rq);
-	}
-	clear_sys_scheduling();
-	if (flgs & ~(ERTS_SSI_FLG_SUSPENDED|ERTS_SSI_FLG_MSB_EXEC))
-	    erts_atomic32_read_band_nob(&ssi->flags,
-                                            (ERTS_SSI_FLG_SUSPENDED
-                                             | ERTS_SSI_FLG_MSB_EXEC));
-	if (!working)
-	    sched_wall_time_change(esdp, working = 1);
-	sched_active_sys(esdp->no, rq);
+    if (ERTS_SCHEDULER_IS_DIRTY(esdp))
+        dirty_sched_wall_time_change(esdp, working = 1);
+    else if (!thr_prgr_active) {
+        erts_thr_progress_active(esdp, thr_prgr_active = 1);
+        sched_wall_time_change(esdp, 1);
     }
 
+    erts_runq_lock(rq);
+    sched_active(esdp->no, rq);
+
     if (ERTS_SCHEDULER_IS_DIRTY(esdp))
         dirty_active(esdp, 1);
 
@@ -3638,7 +3459,6 @@ ssi_wake(ErtsSchedulerSleepInfo *ssi)
     erts_sched_finish_poke(ssi, ssi_flags_set_wake(ssi));
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 static void
 dcpu_sched_ix_suspend_wake(Uint ix)
@@ -3670,7 +3490,6 @@ dio_sched_ix_wake(Uint ix)
 }
 #endif
 
-#endif
 
 static void
 wake_scheduler(ErtsRunQueue *rq)
@@ -3689,7 +3508,6 @@ wake_scheduler(ErtsRunQueue *rq)
     ssi_wake(rq->scheduler->ssi);
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 static void
 wake_dirty_schedulers(ErtsRunQueue *rq, int one)
 {
@@ -3740,7 +3558,6 @@ wake_dirty_scheduler(ErtsRunQueue *rq)
     wake_dirty_schedulers(rq, 1);
 }
 
-#endif
 
 #define ERTS_NO_USED_RUNQS_SHIFT 16
 #define ERTS_NO_RUNQS_MASK 0xffffU
@@ -3876,11 +3693,9 @@ static ERTS_INLINE void
 smp_notify_inc_runq(ErtsRunQueue *runq)
 {
     if (runq) {
-#ifdef ERTS_DIRTY_SCHEDULERS
 	if (ERTS_RUNQ_IX_IS_DIRTY(runq->ix))
 	    wake_dirty_scheduler(runq);
 	else
-#endif
 	    wake_scheduler(runq);
     }
 }
@@ -4239,7 +4054,6 @@ schedule_bound_processes(ErtsRunQueue *rq,
     }
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 static ERTS_INLINE void
 clear_proc_dirty_queue_bit(Process *p, ErtsRunQueue *rq, int prio_bit)
@@ -4263,7 +4077,6 @@ clear_proc_dirty_queue_bit(Process *p, ErtsRunQueue *rq, int prio_bit)
     ASSERT(old & qb);
 }
 
-#endif /* ERTS_DIRTY_SCHEDULERS */
 
 
 static void
@@ -5534,13 +5347,11 @@ wakeup_other_check(ErtsRunQueue *rq, Uint32 flags)
 	    rq->wakeup_other += (left_len*wo_reds
 				 + ERTS_WAKEUP_OTHER_FIXED_INC);
 	    if (rq->wakeup_other > wakeup_other.limit) {
-#ifdef ERTS_DIRTY_SCHEDULERS
 		if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) {
 		    if (rq->waiting) {
 			wake_dirty_scheduler(rq);
 		    }
 		} else
-#endif
 		{
 		    int empty_rqs =
 			erts_atomic32_read_acqb(&no_empty_run_queues);
@@ -5817,7 +5628,6 @@ init_aux_work_data(ErtsAuxWorkData *awdp, ErtsSchedulerData *esdp, char *dawwp)
         case ERTS_SCHED_NORMAL:
             id = (int) esdp->no;
             break;
-#ifdef ERTS_DIRTY_SCHEDULERS
         case ERTS_SCHED_DIRTY_CPU:
             id = (int) erts_no_schedulers;
             id += (int) esdp->dirty_no;
@@ -5827,7 +5637,6 @@ init_aux_work_data(ErtsAuxWorkData *awdp, ErtsSchedulerData *esdp, char *dawwp)
             id += (int) erts_no_dirty_cpu_schedulers;
             id += (int) esdp->dirty_no;
             break;
-#endif
         default:
             ERTS_INTERNAL_ERROR("Invalid scheduler type");
             break;
@@ -5887,7 +5696,6 @@ init_scheduler_data(ErtsSchedulerData* esdp, int num,
     esdp->f_reg_array =
 	erts_alloc_permanent_cache_aligned(ERTS_ALC_T_BEAM_REGISTER,
 					   MAX_REG * sizeof(FloatDef));
-#ifdef ERTS_DIRTY_SCHEDULERS
     esdp->run_queue = runq;
     if (ERTS_RUNQ_IX_IS_DIRTY(runq->ix)) {
 	esdp->no = 0;
@@ -5921,13 +5729,8 @@ init_scheduler_data(ErtsSchedulerData* esdp, int num,
 				    | ERTS_PSFLG_PROXY));
 	shadow_proc->static_flags = ERTS_STC_FLG_SHADOW_PROC;
     }
-#else
-    runq->scheduler = esdp;
-    esdp->run_queue = runq;
-    esdp->no = (Uint) num;
-    esdp->type = ERTS_SCHED_NORMAL;
-#endif
 
+    ssi->esdp = esdp;
     esdp->ssi = ssi;
     esdp->current_process = NULL;
     esdp->current_port = NULL;
@@ -5958,11 +5761,9 @@ init_scheduler_data(ErtsSchedulerData* esdp, int num,
 }
 
 void
-erts_init_scheduling(int no_schedulers, int no_schedulers_online
-#ifdef ERTS_DIRTY_SCHEDULERS
-		     , int no_dirty_cpu_schedulers, int no_dirty_cpu_schedulers_online,
+erts_init_scheduling(int no_schedulers, int no_schedulers_online, int no_poll_threads,
+		     int no_dirty_cpu_schedulers, int no_dirty_cpu_schedulers_online,
 		     int no_dirty_io_schedulers
-#endif
 		     )
 {
     int ix, n, no_ssi, tot_rqs;
@@ -5984,12 +5785,11 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online
     ASSERT(no_schedulers_online <= no_schedulers);
     ASSERT(no_schedulers_online >= 1);
     ASSERT(no_schedulers >= 1);
-#ifdef ERTS_DIRTY_SCHEDULERS
     ASSERT(no_dirty_cpu_schedulers <= no_schedulers);
     ASSERT(no_dirty_cpu_schedulers >= 1);
     ASSERT(no_dirty_cpu_schedulers_online <= no_schedulers_online);
     ASSERT(no_dirty_cpu_schedulers_online >= 1);
-#endif
+    ASSERT(erts_no_poll_threads == no_poll_threads);
 
     /* Create and initialize run queues */
 
@@ -6016,14 +5816,12 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online
         ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_SCHEDULER);
 	erts_cnd_init(&rq->cnd);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
         if (ERTS_RUNQ_IX_IS_DIRTY(ix)) {
             erts_spinlock_init(&rq->sleepers.lock, "dirty_run_queue_sleep_list",
                 make_small(ix + 1),
                 ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_SCHEDULER);
         }
 	rq->sleepers.list = NULL;
-#endif
 
 	rq->waiting = 0;
 	rq->woken = 0;
@@ -6083,15 +5881,13 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online
     n = (int) no_schedulers;
     erts_no_schedulers = n;
     erts_no_total_schedulers = n;
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_no_dirty_cpu_schedulers = no_dirty_cpu_schedulers;
     erts_no_total_schedulers += no_dirty_cpu_schedulers;
     erts_no_dirty_io_schedulers = no_dirty_io_schedulers;
     erts_no_total_schedulers += no_dirty_io_schedulers;
-#endif
 
     /* Create and initialize scheduler sleep info */
-    no_ssi = n+1;
+    no_ssi = n + 1 /* aux thread */;
     aligned_sched_sleep_info =
 	erts_alloc_permanent_cache_aligned(
 	    ERTS_ALC_T_SCHDLR_SLP_INFO,
@@ -6102,14 +5898,14 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online
 	ssi->next = NULL;
 	ssi->prev = NULL;
 #endif
+        ssi->esdp = NULL;
 	erts_atomic32_init_nob(&ssi->flags, 0);
 	ssi->event = NULL; /* initialized in sched_thread_func */
 	erts_atomic32_init_nob(&ssi->aux_work, 0);
     }
 
-    aligned_sched_sleep_info++;
+    aligned_sched_sleep_info += 1 /* aux thread */;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     aligned_dirty_cpu_sched_sleep_info =
 	erts_alloc_permanent_cache_aligned(
 	    ERTS_ALC_T_SCHDLR_SLP_INFO,
@@ -6130,7 +5926,18 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online
 	ssi->event = NULL; /* initialized in sched_dirty_io_thread_func */
 	erts_atomic32_init_nob(&ssi->aux_work, 0);
     }
-#endif
+
+    aligned_poll_thread_sleep_info =
+        erts_alloc_permanent_cache_aligned(
+	    ERTS_ALC_T_SCHDLR_SLP_INFO,
+	    no_poll_threads*sizeof(ErtsAlignedSchedulerSleepInfo));
+    for (ix = 0; ix < no_poll_threads; ix++) {
+        ErtsSchedulerSleepInfo *ssi = &aligned_poll_thread_sleep_info[ix].ssi;
+        ssi->esdp = NULL;
+	erts_atomic32_init_nob(&ssi->flags, 0);
+	ssi->event = NULL; /* initialized in poll_thread */
+	erts_atomic32_init_nob(&ssi->aux_work, 0);
+    }
 
     /* Create and initialize scheduler specific data */
 
@@ -6150,7 +5957,6 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online
 			    NULL, 0);
     }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     {
         Uint64 ts = sched_wall_time_ts();
 	int dirty_scheds = no_dirty_cpu_schedulers + no_dirty_io_schedulers;
@@ -6181,7 +5987,6 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online
 				&adsp[adspix++].dsp, ts);
 	}
     }
-#endif
 
     init_misc_aux_work();
     init_swtreq_alloc();
@@ -6190,11 +5995,14 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online
     erts_atomic32_init_nob(&debug_wait_completed_count, 0); /* debug only */
     debug_wait_completed_flags = 0;
 
-
     aux_thread_aux_work_data =
 	erts_alloc_permanent_cache_aligned(ERTS_ALC_T_SCHDLR_DATA,
 					   sizeof(ErtsAuxWorkData));
 
+    poll_thread_aux_work_data =
+	erts_alloc_permanent_cache_aligned(ERTS_ALC_T_SCHDLR_DATA,
+					   no_poll_threads * sizeof(ErtsAuxWorkData));
+
     init_no_runqs(no_schedulers_online, no_schedulers_online);
     balance_info.last_active_runqs = no_schedulers;
     erts_mtx_init(&balance_info.update_mtx, "migration_info_update", NIL,
@@ -6233,7 +6041,6 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online
 	    suspend_run_queue(ERTS_RUNQ_IX(ix));
     }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
     schdlr_sspnd_set_nscheds(&schdlr_sspnd.online,
 			     ERTS_SCHED_DIRTY_CPU,
@@ -6269,19 +6076,14 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online
     erts_atomic32_init_nob(&dirty_count.io.active,
                                (erts_aint32_t) no_dirty_io_schedulers);
 
-#endif
 
     if (set_schdlr_sspnd_change_flags)
 	erts_atomic32_set_nob(&schdlr_sspnd.changing,
 				  set_schdlr_sspnd_change_flags);
 
-    erts_atomic32_init_nob(&doing_sys_schedule, 0);
-
     init_misc_aux_work();
 
 
-    erts_atomic32_init_nob(&function_calls, 0);
-
     /* init port tasks */
     erts_port_task_init();
 
@@ -6354,7 +6156,6 @@ make_proxy_proc(Process *prev_proxy, Process *proc, erts_aint32_t prio)
 #define ERTS_ENQUEUE_DIRTY_CPU_QUEUE 2
 #define ERTS_ENQUEUE_DIRTY_IO_QUEUE 3
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 static int
 check_dirty_enqueue_in_prio_queue(Process *c_p,
@@ -6448,7 +6249,6 @@ fin_dirty_enq_s_change(Process *p,
     return !0;
 }
 
-#endif /* ERTS_DIRTY_SCHEDULERS */
 
 static ERTS_INLINE int
 check_enqueue_in_prio_queue(Process *c_p,
@@ -6463,14 +6263,12 @@ check_enqueue_in_prio_queue(Process *c_p,
 
     *prq_prio_p = aprio;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (actual & ERTS_PSFLGS_DIRTY_WORK) {
 	int res = check_dirty_enqueue_in_prio_queue(c_p, newp, actual,
 						    aprio, qbit);
 	if (res != ERTS_ENQUEUE_NORMAL_QUEUE)
 	    return res;
     }
-#endif
 
     max_qbit = (actual >> ERTS_PSFLGS_IN_PRQ_MASK_OFFSET) & ERTS_PSFLGS_QMASK;
     max_qbit |= 1 << ERTS_PSFLGS_QMASK_BITS;
@@ -6513,7 +6311,6 @@ select_enqueue_run_queue(int enqueue, int enq_prio, Process *p, erts_aint32_t st
 
 	return NULL;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
     case ERTS_ENQUEUE_DIRTY_CPU_QUEUE:
     case -ERTS_ENQUEUE_DIRTY_CPU_QUEUE:
@@ -6534,7 +6331,6 @@ select_enqueue_run_queue(int enqueue, int enq_prio, Process *p, erts_aint32_t st
 
 	return NULL;
 
-#endif
 
     default: {
 	ErtsRunQueue* runq;
@@ -6578,7 +6374,6 @@ schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p,
 	running_flgs = ERTS_PSFLG_DIRTY_RUNNING|ERTS_PSFLG_DIRTY_RUNNING_SYS;
     else {
 	running_flgs = ERTS_PSFLG_RUNNING|ERTS_PSFLG_RUNNING_SYS;
-#ifdef ERTS_DIRTY_SCHEDULERS
         if (state & ERTS_PSFLG_DIRTY_ACTIVE_SYS
             && (p->flags & (F_DELAY_GC|F_DISABLE_GC))) {
             /*
@@ -6596,7 +6391,6 @@ schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p,
                                                     ~ERTS_PSFLG_DIRTY_ACTIVE_SYS);
             state &= ~ERTS_PSFLG_DIRTY_ACTIVE_SYS;
         }
-#endif
     }
 
     a = state;
@@ -6791,11 +6585,9 @@ change_proc_schedule_state(Process *p,
 		  | ERTS_PSFLG_DIRTY_RUNNING_SYS
 		  | ERTS_PSFLG_IN_RUNQ
 		  | ERTS_PSFLG_ACTIVE)) == ERTS_PSFLG_ACTIVE
-#ifdef ERTS_DIRTY_SCHEDULERS
 	    || (n & (ERTS_PSFLG_RUNNING
 		     | ERTS_PSFLG_RUNNING_SYS
 		     | ERTS_PSFLG_EXITING)) == ERTS_PSFLG_EXITING
-#endif
 	    ) {
 	    /*
 	     * Active and seemingly need to be enqueued, but
@@ -7127,7 +6919,6 @@ nrml_sched_ix_resume_wake(Uint ix)
     sched_resume_wake__(ERTS_SCHED_SLEEP_INFO_IX(ix));
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 static void
 dcpu_sched_ix_resume_wake(Uint ix)
@@ -7141,7 +6932,6 @@ dio_sched_ix_resume_wake(Uint ix)
     sched_resume_wake__(ERTS_DIRTY_IO_SCHED_SLEEP_INFO_IX(ix));
 }
 
-#endif
 
 static erts_aint32_t
 sched_prep_spin_suspended(ErtsSchedulerSleepInfo *ssi, erts_aint32_t xpct)
@@ -7189,17 +6979,19 @@ sched_spin_suspended(ErtsSchedulerSleepInfo *ssi, int spincount)
 }
 
 static erts_aint32_t
-sched_set_suspended_sleeptype(ErtsSchedulerSleepInfo *ssi)
+sched_set_suspended_sleeptype(ErtsSchedulerSleepInfo *ssi,
+                              erts_aint32_t sleep_type)
 {
     erts_aint32_t oflgs;
-    erts_aint32_t nflgs = (ERTS_SSI_FLG_SLEEPING
-			   | ERTS_SSI_FLG_TSE_SLEEPING
-			   | ERTS_SSI_FLG_WAITING
-			   | ERTS_SSI_FLG_SUSPENDED);
+    erts_aint32_t nflgs = ((ERTS_SSI_FLG_SLEEPING
+                            | ERTS_SSI_FLG_WAITING
+                            | ERTS_SSI_FLG_SUSPENDED)
+                           | sleep_type);
     erts_aint32_t xflgs = (ERTS_SSI_FLG_SLEEPING
 			   | ERTS_SSI_FLG_WAITING
 			   | ERTS_SSI_FLG_SUSPENDED);
 
+    ASSERT(sleep_type == ERTS_SSI_FLG_TSE_SLEEPING);
     erts_tse_reset(ssi->event);
 
     while (1) {
@@ -7226,7 +7018,6 @@ init_scheduler_suspend(void)
     schdlr_sspnd.online.normal = 1;
     schdlr_sspnd.curr_online.normal = 1;
     schdlr_sspnd.active.normal = 1;
-#ifdef ERTS_DIRTY_SCHEDULERS
     schdlr_sspnd.online.dirty_cpu = 0;
     schdlr_sspnd.curr_online.dirty_cpu = 0;
     schdlr_sspnd.active.dirty_cpu = 0;
@@ -7234,7 +7025,6 @@ init_scheduler_suspend(void)
     schdlr_sspnd.curr_online.dirty_io = 0;
     schdlr_sspnd.active.dirty_io = 0;
     schdlr_sspnd.last_msb_dirty_type = ERTS_SCHED_DIRTY_IO;
-#endif
     erts_atomic32_init_nob(&schdlr_sspnd.changing, 0);
     schdlr_sspnd.chngq = NULL;
     schdlr_sspnd.changer = am_false;
@@ -7295,7 +7085,6 @@ schdlr_sspnd_resume_procs(ErtsSchedType sched_type,
     }
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 static ERTS_INLINE int
 have_dirty_work(void)
@@ -7455,17 +7244,6 @@ msb_scheduler_type_switch(ErtsSchedType sched_type,
     if (exec_type != ERTS_SCHED_NORMAL)
         schdlr_sspnd.last_msb_dirty_type = exec_type;
     else {
-        erts_aint32_t calls;
-        /*
-         * Going back to normal scheduler after
-         * dirty execution; make sure it will check
-         * for I/O...
-         */
-        if (ERTS_USE_MODIFIED_TIMING())
-            calls = ERTS_MODIFIED_TIMING_INPUT_REDS + 1;
-        else
-            calls = INPUT_REDUCTIONS + 1;
-        erts_atomic32_set_nob(&function_calls, calls);
 
         if ((nrml_prio == ERTS_MSB_NONE_PRIO_BIT)
             & ((dcpu_prio != ERTS_MSB_NONE_PRIO_BIT)
@@ -7539,7 +7317,34 @@ msb_scheduler_type_switch(ErtsSchedType sched_type,
 
 }
 
-#endif
+static ERTS_INLINE void
+suspend_normal_scheduler_sleep(ErtsSchedulerData *esdp)
+{
+    ErtsSchedulerSleepInfo *ssi = esdp->ssi;
+    erts_aint32_t flgs = sched_spin_suspended(ssi,
+                                              ERTS_SCHED_SUSPEND_SLEEP_SPINCOUNT);
+    if (flgs == (ERTS_SSI_FLG_SLEEPING
+                 | ERTS_SSI_FLG_WAITING
+                 | ERTS_SSI_FLG_SUSPENDED)) {
+        flgs = sched_set_suspended_sleeptype(ssi, ERTS_SSI_FLG_TSE_SLEEPING);
+        if (flgs == (ERTS_SSI_FLG_SLEEPING
+                     | ERTS_SSI_FLG_TSE_SLEEPING
+                     | ERTS_SSI_FLG_WAITING
+                     | ERTS_SSI_FLG_SUSPENDED)) {
+            int res;
+
+            do {
+                res = erts_tse_wait(ssi->event);
+            } while (res == EINTR);
+        }
+    }
+}
+
+static ERTS_INLINE void
+suspend_dirty_scheduler_sleep(ErtsSchedulerData *esdp)
+{
+    suspend_normal_scheduler_sleep(esdp);
+}
 
 static void
 suspend_scheduler(ErtsSchedulerData *esdp)
@@ -7567,14 +7372,6 @@ suspend_scheduler(ErtsSchedulerData *esdp)
      */
 
 
-#if !defined(ERTS_DIRTY_SCHEDULERS)
-
-    sched_type = ERTS_SCHED_NORMAL;
-    online_flag = ERTS_SCHDLR_SSPND_CHNG_ONLN;
-    no = esdp->no;
-    ASSERT(no != 1);
-
-#else
 
     sched_type = esdp->type;
     switch (sched_type) {
@@ -7602,7 +7399,6 @@ suspend_scheduler(ErtsSchedulerData *esdp)
         /* Suspend and let scheduler 1 of another type execute... */
     }
 
-#endif
 
     if (sched_type != ERTS_SCHED_NORMAL) {
         dirty_active(esdp, -1);
@@ -7737,14 +7533,15 @@ suspend_scheduler(ErtsSchedulerData *esdp)
 	    schdlr_sspnd_resume_procs(sched_type, &resume);
 
 	    while (1) {
-		ErtsMonotonicTime current_time;
-		erts_aint32_t flgs;
-
 		if (sched_type != ERTS_SCHED_NORMAL)
-		    aux_work = 0;
-		else {
+                    suspend_dirty_scheduler_sleep(esdp);
+		else
+                {
+                    ErtsMonotonicTime current_time, timeout_time;
                     int evacuate = no == 1 ? 0 : !ERTS_EMPTY_RUNQ(esdp->run_queue);
 
+		    ASSERT(sched_type == ERTS_SCHED_NORMAL);
+
 		    aux_work = erts_atomic32_read_acqb(&ssi->aux_work);
 
 		    if (aux_work|evacuate) {
@@ -7766,95 +7563,34 @@ suspend_scheduler(ErtsSchedulerData *esdp)
 			}
 		    }
 
-		}
 
-		if (aux_work) {
-		    ASSERT(sched_type == ERTS_SCHED_NORMAL);
-		    current_time = erts_get_monotonic_time(esdp);
-		    if (current_time >= erts_next_timeout_time(esdp->next_tmo_ref)) {
-			if (!thr_prgr_active) {
-			    erts_thr_progress_active(esdp, thr_prgr_active = 1);
-			    sched_wall_time_change(esdp, 1);
-			}
-			erts_bump_timers(esdp->timer_wheel, current_time);
-		    }
-		}
-		else {
-		    ErtsMonotonicTime timeout_time;
-		    int do_timeout;
+                    if (aux_work)
+                        timeout_time = erts_next_timeout_time(esdp->next_tmo_ref);
+                    else
+                        timeout_time = erts_check_next_timeout_time(esdp);
 
-		    if (sched_type == ERTS_SCHED_NORMAL) {
-			timeout_time = erts_check_next_timeout_time(esdp);
-			current_time = erts_get_monotonic_time(esdp);
-			do_timeout = (current_time >= timeout_time);
-		    }
-		    else {
-			timeout_time = ERTS_MONOTONIC_TIME_MAX;
-			current_time = 0;
-			do_timeout = 0;
-		    }
+                    current_time = erts_get_monotonic_time(esdp);
 
-		    if (do_timeout) {
-			ASSERT(sched_type == ERTS_SCHED_NORMAL);
-			if (!thr_prgr_active) {
-			    erts_thr_progress_active(esdp, thr_prgr_active = 1);
-			    sched_wall_time_change(esdp, 1);
-			}
-		    }
-		    else {
-			if (sched_type == ERTS_SCHED_NORMAL) {
-			    if (thr_prgr_active) {
-				erts_thr_progress_active(esdp, thr_prgr_active = 0);
-				sched_wall_time_change(esdp, 0);
-			    }
-			    erts_thr_progress_prepare_wait(esdp);
-			}
-			flgs = sched_spin_suspended(ssi,
-						    ERTS_SCHED_SUSPEND_SLEEP_SPINCOUNT);
-			if (flgs == (ERTS_SSI_FLG_SLEEPING
-				     | ERTS_SSI_FLG_WAITING
-				     | ERTS_SSI_FLG_SUSPENDED)) {
-			    flgs = sched_set_suspended_sleeptype(ssi);
-			    if (flgs == (ERTS_SSI_FLG_SLEEPING
-					 | ERTS_SSI_FLG_TSE_SLEEPING
-					 | ERTS_SSI_FLG_WAITING
-					 | ERTS_SSI_FLG_SUSPENDED)) {
-				int res;
-
-				if (sched_type == ERTS_SCHED_NORMAL)
-				    current_time = erts_get_monotonic_time(esdp);
-				else
-				    current_time = 0;
-
-				do {
-				    Sint64 timeout;
-				    if (current_time >= timeout_time)
-					break;
-				    if (sched_type != ERTS_SCHED_NORMAL)
-					timeout = -1;
-				    else
-					timeout = ERTS_MONOTONIC_TO_NSEC(timeout_time
-									 - current_time
-									 - 1) + 1;
-				    res = erts_tse_twait(ssi->event, timeout);
-
-				    if (sched_type == ERTS_SCHED_NORMAL)
-					current_time = erts_get_monotonic_time(esdp);
-				    else
-					current_time = 0;
-
-				} while (res == EINTR);
-			    }
-			}
-			if (sched_type == ERTS_SCHED_NORMAL)
-			    erts_thr_progress_finalize_wait(esdp);
-		    }
+                    if (!aux_work && current_time < timeout_time) {
+                        /* go to sleep... */
+                        if (thr_prgr_active) {
+                            erts_thr_progress_active(esdp, thr_prgr_active = 0);
+                            sched_wall_time_change(esdp, 0);
+                        }
+                        erts_thr_progress_prepare_wait(NULL);
+                        suspend_normal_scheduler_sleep(esdp);
+                        erts_thr_progress_finalize_wait(NULL);
+                        current_time = erts_get_monotonic_time(esdp);
+                    }
 
-		    if (current_time >= timeout_time) {
-			ASSERT(sched_type == ERTS_SCHED_NORMAL);
-			erts_bump_timers(esdp->timer_wheel, current_time);
-		    }
-		}
+                    if (current_time >= timeout_time) {
+                        if (!thr_prgr_active) {
+                            erts_thr_progress_active(esdp, thr_prgr_active = 1);
+                            sched_wall_time_change(esdp, 1);
+                        }
+                        erts_bump_timers(esdp->timer_wheel, current_time);
+                    }
+                }
 
 		flgs = sched_prep_spin_suspended(ssi, (ERTS_SSI_FLG_WAITING
 						       | ERTS_SSI_FLG_SUSPENDED));
@@ -8034,11 +7770,7 @@ erts_set_schedulers_online(Process *p,
     erts_aint32_t changing = 0, change_flags;
     int online, increase;
     ErtsProcList *plp;
-#ifdef ERTS_DIRTY_SCHEDULERS
     int dirty_no, change_dirty, dirty_online;
-#else
-    ASSERT(!dirty_only);
-#endif
 
     if (new_no < 1)
 	return ERTS_SCHDLR_SSPND_EINVAL;
@@ -8047,11 +7779,9 @@ erts_set_schedulers_online(Process *p,
     else if (erts_no_schedulers < new_no)
 	return ERTS_SCHDLR_SSPND_EINVAL;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (dirty_only)
 	resume_proc = 0;
     else
-#endif
     {
 	resume_proc = 1;
 	/*
@@ -8072,9 +7802,7 @@ erts_set_schedulers_online(Process *p,
     have_unlocked_plocks = 0;
     no = (int) new_no;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (!dirty_only)
-#endif
     {
 	changing = erts_atomic32_read_nob(&schdlr_sspnd.changing);
 	if (changing & ERTS_SCHDLR_SSPND_CHNG_ONLN) {
@@ -8102,12 +7830,6 @@ erts_set_schedulers_online(Process *p,
 
     *old_no = online = schdlr_sspnd_get_nscheds(&schdlr_sspnd.online,
 						ERTS_SCHED_NORMAL);
-#ifndef ERTS_DIRTY_SCHEDULERS
-    if (no == online) {
-	res = ERTS_SCHDLR_SSPND_DONE;
-	goto done;
-    }
-#else /* ERTS_DIRTY_SCHEDULERS */
     dirty_online = schdlr_sspnd_get_nscheds(&schdlr_sspnd.online,
 					    ERTS_SCHED_DIRTY_CPU);
     if (dirty_only)
@@ -8159,7 +7881,6 @@ erts_set_schedulers_online(Process *p,
     if (dirty_only)
 	increase = (dirty_no > dirty_online);
     else
-#endif /* ERTS_DIRTY_SCHEDULERS */
     {
 	change_flags |= ERTS_SCHDLR_SSPND_CHNG_ONLN;
 	schdlr_sspnd_set_nscheds(&schdlr_sspnd.online,
@@ -8173,7 +7894,6 @@ erts_set_schedulers_online(Process *p,
     res = ERTS_SCHDLR_SSPND_DONE;
     if (increase) {
 	int ix;
-#ifdef ERTS_DIRTY_SCHEDULERS
 	if (change_dirty) {
 	    ErtsSchedulerSleepInfo* ssi;
 	    if (schdlr_sspnd.msb.ongoing) {
@@ -8187,7 +7907,6 @@ erts_set_schedulers_online(Process *p,
 	    }
 	}
 	if (!dirty_only)
-#endif
 	{
 	    if (schdlr_sspnd.msb.ongoing|schdlr_sspnd.nmsb.ongoing) {
 		for (ix = online; ix < no; ix++)
@@ -8209,7 +7928,6 @@ erts_set_schedulers_online(Process *p,
 	}
     }
     else /* if decrease */ {
-#ifdef ERTS_DIRTY_SCHEDULERS
 	if (change_dirty) {
 	    if (schdlr_sspnd.msb.ongoing) {
 		for (ix = dirty_no; ix < dirty_online; ix++)
@@ -8227,7 +7945,6 @@ erts_set_schedulers_online(Process *p,
 	    }
 	}
 	if (!dirty_only)
-#endif
 	{
 	    if (schdlr_sspnd.msb.ongoing|schdlr_sspnd.nmsb.ongoing) {
 		for (ix = no; ix < online; ix++)
@@ -8365,7 +8082,6 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int normal
                 wake_scheduler(rq);
             }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
             if (!normal) {
                 ERTS_RUNQ_FLGS_SET_NOB(ERTS_RUNQ_IX(0), ERTS_RUNQ_FLG_MSB_EXEC);
                 erts_atomic32_read_bor_nob(&ERTS_RUNQ_IX(0)->scheduler->ssi->flags,
@@ -8375,7 +8091,6 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int normal
                 for (ix = 0; ix < erts_no_dirty_io_schedulers; ix++)
                     dio_sched_ix_suspend_wake(ix);
             }
-#endif
 
         wait_until_msb:
 
@@ -8441,7 +8156,6 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int normal
 		for (ix = online; ix < erts_no_run_queues; ix++)
 		    suspend_run_queue(ERTS_RUNQ_IX(ix));
 	    }
-#ifdef ERTS_DIRTY_SCHEDULERS
             if (!schdlr_sspnd.msb.ongoing) {
                 /* Get rid of msb-exec flag in run-queue of scheduler 1 */
                 resume_run_queue(ERTS_RUNQ_IX(0));
@@ -8452,7 +8166,6 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int normal
 		for (ix = 0; ix < erts_no_dirty_io_schedulers; ix++)
 		    dio_sched_ix_resume_wake(ix);
 	    }
-#endif
 	}
 
     unblock_res:
@@ -8543,6 +8256,7 @@ sched_thread_func(void *vesdp)
     Uint no = esdp->no;
     erts_tse_t *tse;
 
+    erts_port_task_pre_alloc_init_thread();
     erts_sched_init_time_sup(esdp);
 
     if (no == 1)
@@ -8604,7 +8318,6 @@ sched_thread_func(void *vesdp)
     return NULL;
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 static void*
 sched_dirty_cpu_thread_func(void *vesdp)
 {
@@ -8696,19 +8409,18 @@ sched_dirty_io_thread_func(void *vesdp)
 	     no);
     return NULL;
 }
-#endif
-
-static ethr_tid aux_tid;
 
 void
 erts_start_schedulers(void)
 {
+    ethr_tid tid;
     int res = 0;
     Uint actual;
     Uint wanted = erts_no_schedulers;
     Uint wanted_no_schedulers = erts_no_schedulers;
     char name[16];
     ethr_thr_opts opts = ETHR_THR_OPTS_DEFAULT_INITER;
+    int ix;
 
     opts.detached = 1;
 
@@ -8720,11 +8432,13 @@ erts_start_schedulers(void)
 	erts_atomic_init_nob(&runq_supervisor_sleeping, 0);
 	if (0 != ethr_event_init(&runq_supervision_event))
 	    erts_exit(ERTS_ERROR_EXIT, "Failed to create run-queue supervision event\n");
-	if (0 != ethr_thr_create(&runq_supervisor_tid,
-				 runq_supervisor,
-				 NULL,
-				 &opts))
-	    erts_exit(ERTS_ERROR_EXIT, "Failed to create run-queue supervision thread\n");
+        res = ethr_thr_create(&runq_supervisor_tid,
+                              runq_supervisor,
+                              NULL,
+                              &opts);
+	if (0 != res)
+	    erts_exit(ERTS_ERROR_EXIT, "Failed to create run-queue supervision thread, "
+                      "error = %d\n", res);
 
     }
 
@@ -8752,16 +8466,14 @@ erts_start_schedulers(void)
     }
     erts_no_schedulers = actual;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     {
-	int ix;
 	for (ix = 0; ix < erts_no_dirty_cpu_schedulers; ix++) {
 	    ErtsSchedulerData *esdp = ERTS_DIRTY_CPU_SCHEDULER_IX(ix);
 	    erts_snprintf(opts.name, 16, "%d_dirty_cpu_scheduler", ix + 1);
             opts.suggested_stack_size = erts_dcpu_sched_thread_suggested_stack_size;
 	    res = ethr_thr_create(&esdp->tid,sched_dirty_cpu_thread_func,(void*)esdp,&opts);
 	    if (res != 0)
-		erts_exit(ERTS_ERROR_EXIT, "Failed to create dirty cpu scheduler thread %d\n", ix);
+		erts_exit(ERTS_ERROR_EXIT, "Failed to create dirty cpu scheduler thread %d, error = %d\n", ix, res);
 	}
 	for (ix = 0; ix < erts_no_dirty_io_schedulers; ix++) {
 	    ErtsSchedulerData *esdp = ERTS_DIRTY_IO_SCHEDULER_IX(ix);
@@ -8769,18 +8481,25 @@ erts_start_schedulers(void)
             opts.suggested_stack_size = erts_dio_sched_thread_suggested_stack_size;
 	    res = ethr_thr_create(&esdp->tid,sched_dirty_io_thread_func,(void*)esdp,&opts);
 	    if (res != 0)
-		erts_exit(ERTS_ERROR_EXIT, "Failed to create dirty io scheduler thread %d\n", ix);
+		erts_exit(ERTS_ERROR_EXIT, "Failed to create dirty io scheduler thread %d, error = %d\n", ix, res);
 	}
     }
-#endif
 
     ERTS_THR_MEMORY_BARRIER;
 
     erts_snprintf(opts.name, 16, "aux");
 
-    res = ethr_thr_create(&aux_tid, aux_thread, NULL, &opts);
+    res = ethr_thr_create(&tid, aux_thread, NULL, &opts);
     if (res != 0)
-	erts_exit(ERTS_ERROR_EXIT, "Failed to create aux thread\n");
+	erts_exit(ERTS_ERROR_EXIT, "Failed to create aux thread, error = %d\n", res);
+
+    for (ix = 0; ix < erts_no_poll_threads; ix++) {
+        erts_snprintf(opts.name, 16, "%d_poller", ix);
+
+        res = ethr_thr_create(&tid, poll_thread, (void*)(UWord)ix, &opts);
+        if (res != 0)
+            erts_exit(ERTS_ERROR_EXIT, "Failed to create poll thread\n");
+    }
 
     if (actual < 1)
 	erts_exit(ERTS_ERROR_EXIT,
@@ -8962,7 +8681,6 @@ pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
 	    ASSERT((ERTS_PSFLG_RUNNING | ERTS_PSFLG_DIRTY_RUNNING)
 		   & erts_atomic32_read_nob(&rp->state));
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 	    if (!suspend
 		&& (erts_atomic32_read_nob(&rp->state)
 		    & ERTS_PSFLG_DIRTY_RUNNING)) {
@@ -8974,7 +8692,6 @@ pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
 		}
 		goto done;
 	    }
-#endif
 
 	running:
 
@@ -9490,7 +9207,6 @@ erts_internal_is_process_executing_dirty_1(BIF_ALIST_1)
 {
     if (is_not_internal_pid(BIF_ARG_1))
 	BIF_ERROR(BIF_P, BADARG);
-#ifdef ERTS_DIRTY_SCHEDULERS
     else {
 	Process *rp = erts_proc_lookup(BIF_ARG_1);
 	if (rp) {
@@ -9501,7 +9217,6 @@ erts_internal_is_process_executing_dirty_1(BIF_ALIST_1)
 	    }
 	}
     }
-#endif
     BIF_RET(am_false);
 }
 
@@ -9517,7 +9232,6 @@ run_queues_len_aux(ErtsRunQueue *rq, Uint *tot_len, Uint *qlen, int *ip, int inc
     ASSERT(rq_len >= 0);
 
     if (incl_active_sched) {
-#ifdef ERTS_DIRTY_SCHEDULERS
         if (ERTS_RUNQ_IX_IS_DIRTY(rq->ix)) {
             erts_aint32_t dcnt;
             if (ERTS_RUNQ_IS_DIRTY_CPU_RUNQ(rq)) {
@@ -9532,7 +9246,6 @@ run_queues_len_aux(ErtsRunQueue *rq, Uint *tot_len, Uint *qlen, int *ip, int inc
             rq_len += (Sint) dcnt;
         }
         else
-#endif
         {
             if (ERTS_RUNQ_FLGS_GET_NOB(rq) & ERTS_RUNQ_FLG_EXEC)
                 rq_len++;
@@ -9551,12 +9264,10 @@ erts_run_queues_len(Uint *qlen, int atomic_queues_read, int incl_active_sched,
     Uint len = 0;
     int no_rqs = erts_no_run_queues;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (incl_dirty_io)
         no_rqs += ERTS_NUM_DIRTY_RUNQS;
     else
         no_rqs += ERTS_NUM_DIRTY_CPU_RUNQS;
-#endif
 
     if (atomic_queues_read) {
         ERTS_ATOMIC_FOREACH_RUNQ_X(rq, no_rqs,
@@ -9856,7 +9567,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
     ErtsRunQueue *rq;
     int context_reds;
     int fcalls;
-    int input_reductions;
     int actual_reds;
     int reds;
     Uint32 flags;
@@ -9876,11 +9586,9 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 
     if (ERTS_USE_MODIFIED_TIMING()) {
 	context_reds = ERTS_MODIFIED_TIMING_CONTEXT_REDS;
-	input_reductions = ERTS_MODIFIED_TIMING_INPUT_REDS;
     }
     else {
 	context_reds = CONTEXT_REDS;
-	input_reductions = INPUT_REDUCTIONS;
     }
 
     ERTS_LC_ASSERT(ERTS_SCHEDULER_IS_DIRTY(erts_get_scheduler_data())
@@ -9890,7 +9598,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
      * Clean up after the process being scheduled out.
      */
     if (!p) {	/* NULL in the very first schedule() call */
-#ifdef ERTS_DIRTY_SCHEDULERS
 	is_normal_sched = !esdp;
 	if (is_normal_sched) {
 	    esdp = erts_get_scheduler_data();
@@ -9899,17 +9606,11 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 	else {
 	    ASSERT(ERTS_SCHEDULER_IS_DIRTY(esdp));
 	}
-#else
-	esdp = erts_get_scheduler_data();
-	is_normal_sched = 1;
-#endif
 	rq = erts_get_runq_current(esdp);
 	ASSERT(esdp);
-	fcalls = (int) erts_atomic32_read_acqb(&function_calls);
 	actual_reds = reds = 0;
 	erts_runq_lock(rq);
     } else {
-#ifdef ERTS_DIRTY_SCHEDULERS
 	is_normal_sched = !esdp;
 	if (is_normal_sched) {
 	    esdp = p->scheduler_data;
@@ -9918,10 +9619,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 	else {
 	    ASSERT(ERTS_SCHEDULER_IS_DIRTY(esdp));
 	}
-#else
-	esdp = p->scheduler_data;
-	is_normal_sched = 1;
-#endif
 	ASSERT(esdp->current_process == p
 	       || esdp->free_process == p);
 
@@ -9936,7 +9633,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 	    reds = ERTS_PROC_MIN_CONTEXT_SWITCH_REDS_COST;
 	esdp->virtual_reds = 0;
 
-	fcalls = (int) erts_atomic32_add_read_acqb(&function_calls, reds);
 	ASSERT(esdp && esdp == erts_get_scheduler_data());
 
 	rq = erts_get_runq_current(esdp);
@@ -10026,16 +9722,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 
 	ERTS_CHK_NO_PROC_LOCKS;
 
-	if (is_normal_sched) {
-	    if (esdp->check_time_reds >= ERTS_CHECK_TIME_REDS)
-		(void) erts_get_monotonic_time(esdp);
-
-	    if (esdp->last_monotonic_time >= erts_next_timeout_time(esdp->next_tmo_ref)) {
-		erts_runq_unlock(rq);
-		erts_bump_timers(esdp->timer_wheel, esdp->last_monotonic_time);
-		erts_runq_lock(rq);
-	    }
-	}
     }
 
     ERTS_LC_ASSERT(!is_normal_sched || !erts_thr_progress_is_blocking());
@@ -10046,6 +9732,16 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 	ErtsMigrationPath *mp;
 
 	if (is_normal_sched) {
+
+	    if (esdp->check_time_reds >= ERTS_CHECK_TIME_REDS)
+		(void) erts_get_monotonic_time(esdp);
+
+	    if (esdp->last_monotonic_time >= erts_next_timeout_time(esdp->next_tmo_ref)) {
+		erts_runq_unlock(rq);
+		erts_bump_timers(esdp->timer_wheel, esdp->last_monotonic_time);
+		erts_runq_lock(rq);
+	    }
+
 	    if (rq->check_balance_reds <= 0)
 		check_balance(rq);
 
@@ -10147,7 +9843,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
                      */
                     flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
                     if ((flags & ERTS_RUNQ_FLG_SUSPENDED)
-#ifdef ERTS_DIRTY_SCHEDULERS
                         /* If multi scheduling block and we have
                          * dirty work, suspend and let dirty
                          * scheduler handle work... */
@@ -10155,7 +9850,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
                                        | ERTS_RUNQ_FLG_MSB_EXEC))
                               == ERTS_RUNQ_FLG_MSB_EXEC))
                             && have_dirty_work())
-#endif
                         ) {
                         non_empty_runq(rq);
                         flags |= ERTS_RUNQ_FLG_NONEMPTY;
@@ -10177,38 +9871,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 
 	    goto check_activities_to_run;
 	}
-	else if (is_normal_sched
-		 && (fcalls > input_reductions
-		     && prepare_for_sys_schedule(!0))) {
-	    ErtsMonotonicTime current_time;
-	    /*
-	     * Schedule system-level activities.
-	     */
-
-	    ERTS_MSACC_PUSH_STATE_CACHED_M();
-
-	    erts_atomic32_set_relb(&function_calls, 0);
-	    fcalls = 0;
-
-#if 0 /* Not needed since we wont wait in sys schedule */
-	    erts_sys_schedule_interrupt(0);
-#endif
-	    erts_runq_unlock(rq);
-
-            ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_CHECK_IO);
-            LTTNG2(scheduler_poll, esdp->no, 1);
-
-	    erl_sys_schedule(1);
-	    ERTS_MSACC_POP_STATE_M();
-
-	    current_time = erts_get_monotonic_time(esdp);
-	    if (current_time >= erts_next_timeout_time(esdp->next_tmo_ref))
-		erts_bump_timers(esdp->timer_wheel, current_time);
-
-	    erts_runq_lock(rq);
-	    clear_sys_scheduling();
-	    goto continue_check_activities_to_run;
-	}
 
         if (flags & ERTS_RUNQ_FLG_MISC_OP)
 	    exec_misc_ops(rq);
@@ -10222,29 +9884,9 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
         flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
 
 	if (flags & PORT_BIT) {
-	    int have_outstanding_io;
-	    have_outstanding_io = erts_port_task_execute(rq, &esdp->current_port);
-	    if ((!erts_eager_check_io
-		 && have_outstanding_io
-		 && fcalls > 2*input_reductions)
-		|| (flags & ERTS_RUNQ_FLG_HALTING)) {
-		/*
-		 * If we have performed more than 2*INPUT_REDUCTIONS since
-		 * last call to erl_sys_schedule() and we still haven't
-		 * handled all I/O tasks we stop running processes and
-		 * focus completely on ports.
-		 *
-		 * One could argue that this is a strange behavior. The
-		 * reason for doing it this way is that it is similar
-		 * to the behavior before port tasks were introduced.
-		 * We don't want to change the behavior too much, at
-		 * least not at the time of writing. This behavior
-		 * might change in the future.
-		 *
-		 * /rickard
-		 */
-		goto check_activities_to_run;
-	    }
+	    erts_port_task_execute(rq, &esdp->current_port);
+            if (flags & ERTS_RUNQ_FLG_HALTING)
+                goto check_activities_to_run;
 	}
 
 	/*
@@ -10314,10 +9956,8 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 		state = erts_atomic32_read_nob(&p->state);
 	    }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 	    if (!is_normal_sched)
 		clear_proc_dirty_queue_bit(p, rq, qbit);
-#endif
 
 	    while (1) {
 		erts_aint32_t exp, new;
@@ -10335,7 +9975,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 					    | ERTS_PSFLG_DIRTY_RUNNING
 					    | ERTS_PSFLG_DIRTY_RUNNING_SYS
 					    | ERTS_PSFLG_FREE)))
-#ifdef ERTS_DIRTY_SCHEDULERS
 				| (((state & (ERTS_PSFLG_RUNNING
 
 					      | ERTS_PSFLG_FREE
@@ -10344,7 +9983,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 					      | ERTS_PSFLG_EXITING))
 				    == ERTS_PSFLG_EXITING)
 				   & (!!is_normal_sched))
-#endif
 				   )
 			       & ((state & (ERTS_PSFLG_SUSPENDED
 					    | ERTS_PSFLG_EXITING
@@ -10353,11 +9991,9 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 					    | ERTS_PSFLG_ACTIVE_SYS
 					    | ERTS_PSFLG_DIRTY_ACTIVE_SYS))
 				  != ERTS_PSFLG_SUSPENDED)
-#ifdef ERTS_DIRTY_SCHEDULERS
                                & (!(state & (ERTS_PSFLG_EXITING
                                              | ERTS_PSFLG_PENDING_EXIT))
                                   | (!!is_normal_sched))
-#endif
                     );
 
 		if (run_process) {
@@ -10431,10 +10067,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 
 	state = erts_atomic32_read_nob(&p->state);
 
-#ifndef ERTS_DIRTY_SCHEDULERS
-	ASSERT(!p->scheduler_data);
-	p->scheduler_data = esdp;
-#else /* ERTS_DIRTY_SCHEDULERS */
 	if (is_normal_sched) {
 	    if ((!!(state & ERTS_PSFLGS_DIRTY_WORK))
 		& (!(state & ERTS_PSFLG_ACTIVE_SYS))) {
@@ -10470,7 +10102,6 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
 		   : (rq == ERTS_DIRTY_IO_RUNQ
 		      && (state & ERTS_PSFLG_DIRTY_IO_PROC)));	    
 	}
-#endif
 
 	if (state & ERTS_PSFLG_PENDING_EXIT) {
 	    erts_handle_pending_exit(p,
@@ -10515,10 +10146,8 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
                     reds -= cost;
                     if (reds <= 0)
                         goto sched_out_proc;
-#ifdef ERTS_DIRTY_SCHEDULERS
                     if (state & ERTS_PSFLGS_DIRTY_WORK)
                         goto sched_out_proc;
-#endif
                 }
 
                 ASSERT(state & psflg_running_sys);
@@ -10556,10 +10185,8 @@ Process *erts_schedule(ErtsSchedulerData *esdp, Process *p, int calls)
                     reds -= cost;
                     if (reds <= 0)
                         goto sched_out_proc;
-#ifdef ERTS_DIRTY_SCHEDULERS
                     if (p->flags & (F_DIRTY_MAJOR_GC|F_DIRTY_MINOR_GC))
                         goto sched_out_proc;
-#endif
                 }
             }
         }
@@ -10603,13 +10230,11 @@ notify_sys_task_executed(Process *c_p, ErtsProcSysTask *st,
 			 Eterm st_result, int normal_sched)
 {
     Process *rp;
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (!normal_sched)
 	rp = erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN,
 			       st->requester, 0,
 			       ERTS_P2P_FLG_INC_REFC);
     else
-#endif
 	rp = erts_proc_lookup(st->requester);
     if (rp) {
 	ErtsProcLocks rp_locks;
@@ -10659,10 +10284,8 @@ notify_sys_task_executed(Process *c_p, ErtsProcSysTask *st,
 	if (rp_locks)
 	    erts_proc_unlock(rp, rp_locks);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 	if (!normal_sched)
 	    erts_proc_dec_refc(rp);
-#endif
     }
 
     erts_cleanup_offheap(&st->off_heap);
@@ -10818,9 +10441,7 @@ done:
 }
 
 static void save_gc_task(Process *c_p, ErtsProcSysTask *st, int prio);
-#ifdef ERTS_DIRTY_SCHEDULERS
 static void save_dirty_task(Process *c_p, ErtsProcSysTask *st);
-#endif
 
 static int
 execute_sys_tasks(Process *c_p, erts_aint32_t *statep, int in_reds)
@@ -10868,13 +10489,11 @@ execute_sys_tasks(Process *c_p, erts_aint32_t *statep, int in_reds)
                         FLAGS(c_p) |= F_NEED_FULLSWEEP;
                     }
 		    reds -= scheduler_gc_proc(c_p, reds);
-#ifdef ERTS_DIRTY_SCHEDULERS
 		    if (c_p->flags & (F_DIRTY_MAJOR_GC|F_DIRTY_MINOR_GC)) {
 			save_dirty_task(c_p, st);
 			st = NULL;
 			break;
 		    }
-#endif
 		    if (type == ERTS_PSTT_GC_MAJOR)
 			minor_gc = major_gc = 1;
 		    else
@@ -10916,13 +10535,11 @@ execute_sys_tasks(Process *c_p, erts_aint32_t *statep, int in_reds)
 						 fcalls, do_gc);
             reds -= cla_reds;
 	    if (is_non_value(st_res)) {
-#ifdef ERTS_DIRTY_SCHEDULERS
 		if (c_p->flags & F_DIRTY_CLA) {
 		    save_dirty_task(c_p, st);
 		    st = NULL;
 		    break;
 		}
-#endif
 		/* Needed gc, but gc was disabled */
 		save_gc_task(c_p, st, st_prio);
 		st = NULL;
@@ -10980,13 +10597,11 @@ cleanup_sys_tasks(Process *c_p, erts_aint32_t in_state, int in_reds)
 	Eterm st_res;
 	int st_prio;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 	if (c_p->dirty_sys_tasks) {
 	    st = c_p->dirty_sys_tasks;
 	    c_p->dirty_sys_tasks = st->next;
 	}
 	else
-#endif
 	{
 	    st = fetch_sys_task(c_p, state, &qmask, &st_prio);
 	    if (!st)
@@ -11022,7 +10637,6 @@ cleanup_sys_tasks(Process *c_p, erts_aint32_t in_state, int in_reds)
     return reds;
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 void
 erts_execute_dirty_system_task(Process *c_p)
@@ -11165,7 +10779,6 @@ dispatch_system_task(Process *c_p, erts_aint_t fail_state,
     return ret;
 }
 
-#endif
 
 static BIF_RETTYPE
 request_system_task(Process *c_p, Eterm requester, Eterm target,
@@ -11270,7 +10883,6 @@ request_system_task(Process *c_p, Eterm requester, Eterm target,
 	st->type = ERTS_PSTT_CPC;
 	if (!rp)
 	    goto noproc;
-#ifdef ERTS_DIRTY_SCHEDULERS
 	/*
 	 * If the process should start executing dirty
 	 * code it is important that this task is
@@ -11278,7 +10890,6 @@ request_system_task(Process *c_p, Eterm requester, Eterm target,
 	 */
 	fail_state |= (ERTS_PSFLG_DIRTY_RUNNING
 		       | ERTS_PSFLG_DIRTY_RUNNING_SYS);
-#endif
 	break;
 
     case am_copy_literals:
@@ -11300,14 +10911,12 @@ request_system_task(Process *c_p, Eterm requester, Eterm target,
 	noproc:
 	    failure = noproc_res;
 	}
-#ifdef ERTS_DIRTY_SCHEDULERS
 	else if (fail_state & (ERTS_PSFLG_DIRTY_RUNNING
 			       | ERTS_PSFLG_DIRTY_RUNNING_SYS)) {
 	    ret = dispatch_system_task(c_p, fail_state, st,
 				       target, priority, operation);
 	    goto cleanup_return;
 	}
-#endif
 	else {
 	    ERTS_INTERNAL_ERROR("Unknown failure schedule_process_sys_task()");
 	    failure = am_internal_error;
@@ -11323,9 +10932,7 @@ badarg:
 
     ERTS_BIF_PREP_ERROR(ret, c_p, BADARG);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 cleanup_return:
-#endif
 
     if (st) {
 	erts_cleanup_offheap(&st->off_heap);
@@ -11389,7 +10996,6 @@ erts_schedule_ets_free_fixation(Eterm pid, DbFixation* fix)
     erts_schedule_generic_sys_task(pid, ERTS_PSTT_ETS_FREE_FIXATION, fix);
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 static void
 flush_dirty_trace_messages(void *vpid)
@@ -11410,7 +11016,6 @@ flush_dirty_trace_messages(void *vpid)
     }
 }
 
-#endif /* ERTS_DIRTY_SCHEDULERS */
 
 void
 erts_schedule_flush_trace_messages(Process *proc, int force_on_proc)
@@ -11418,7 +11023,6 @@ erts_schedule_flush_trace_messages(Process *proc, int force_on_proc)
     ErtsThrPrgrDelayHandle dhndl;
     Eterm pid = proc->common.id;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_aint32_t state;
 
     if (!force_on_proc) {
@@ -11428,7 +11032,6 @@ erts_schedule_flush_trace_messages(Process *proc, int force_on_proc)
 	    goto sched_flush_dirty;
 	}
     }
-#endif
 
     dhndl = erts_thr_progress_unmanaged_delay();
 
@@ -11436,7 +11039,6 @@ erts_schedule_flush_trace_messages(Process *proc, int force_on_proc)
 
     erts_thr_progress_unmanaged_continue(dhndl);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (!force_on_proc) {
 	state = erts_atomic32_read_mb(&proc->state);
 	if (state & (ERTS_PSFLG_DIRTY_RUNNING
@@ -11466,7 +11068,6 @@ erts_schedule_flush_trace_messages(Process *proc, int force_on_proc)
 	    erts_schedule_misc_aux_work(1, flush_dirty_trace_messages, vargp);
 	}
     }
-#endif
 }
 
 static void
@@ -11527,14 +11128,12 @@ save_gc_task(Process *c_p, ErtsProcSysTask *st, int prio)
     }
 }
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 static void
 save_dirty_task(Process *c_p, ErtsProcSysTask *st)
 {
     st->next = c_p->dirty_sys_tasks;
     c_p->dirty_sys_tasks = st;
 }
-#endif
 
 int
 erts_set_gc_state(Process *c_p, int enable)
@@ -11871,10 +11470,8 @@ static void early_init_process_struct(void *varg, Eterm data)
     Process *proc = arg->proc;
 
     proc->common.id = make_internal_pid(data);
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_atomic32_init_nob(&proc->dirty_state, 0);
     proc->dirty_sys_tasks = NULL;
-#endif
     erts_atomic32_init_relb(&proc->state, arg->state);
 
     RUNQ_SET_RQ(&proc->run_queue, arg->run_queue);
@@ -12122,6 +11719,7 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
     p->msg.first = NULL;
     p->msg.last = &p->msg.first;
     p->msg.save = &p->msg.first;
+    p->msg.saved_last = &p->msg.first;
     p->msg.len = 0;
     p->msg_inq.first = NULL;
     p->msg_inq.last = &p->msg_inq.first;
@@ -12364,10 +11962,8 @@ void erts_init_empty_process(Process *p)
     p->last_old_htop = NULL;
 #endif
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_atomic32_init_nob(&p->dirty_state, 0);
     p->dirty_sys_tasks = NULL;
-#endif
     erts_atomic32_init_nob(&p->state, (erts_aint32_t) PRIORITY_NORMAL);
 
     p->scheduler_data = NULL;
@@ -12880,9 +12476,9 @@ send_exit_signal(Process *c_p,		/* current process if and only
 
     if ((state & ERTS_PSFLG_TRAP_EXIT)
 	&& (reason != am_kill || (flags & ERTS_XSIG_FLG_IGN_KILL))) {
-        /* have to release the status lock in order to send the exit message */
-        erts_proc_unlock(rp, *rp_locks & ERTS_PROC_LOCKS_XSIG_SEND);
-        *rp_locks &= ~ERTS_PROC_LOCKS_XSIG_SEND;
+        /* have to release the status and trace lock in order to send the exit message */
+        erts_proc_unlock(rp, *rp_locks & (ERTS_PROC_LOCKS_XSIG_SEND|ERTS_PROC_LOCK_TRACE));
+        *rp_locks &= ~(ERTS_PROC_LOCKS_XSIG_SEND|ERTS_PROC_LOCK_TRACE);
         if (have_seqtrace(token) && token_update)
 	    seq_trace_update_send(token_update);
 	if (is_value(exit_tuple))
@@ -12938,14 +12534,12 @@ send_exit_signal(Process *c_p,		/* current process if and only
 		    Eterm *hp;
 		    ErlOffHeap *ohp;
 		    Uint rsn_sz = size_object(rsn);
-#ifdef ERTS_DIRTY_SCHEDULERS
 		    if (state & ERTS_PSFLG_DIRTY_RUNNING) {
 			bp = new_message_buffer(rsn_sz);
 			ohp = &bp->off_heap;
 			hp = &bp->mem[0];
 		    }
 		    else
-#endif
 		    {
 			hp = HAlloc(rp, rsn_sz);
 			ohp = &rp->off_heap;
@@ -12985,10 +12579,6 @@ send_exit_signal(Process *c_p,		/* current process if and only
                  * has been scheduled, we may need to add it to a normal run
                  * queue...
 		 */
-#ifndef ERTS_DIRTY_SCHEDULERS
-                (void) erts_atomic32_read_bor_relb(&rp->state,
-                                                       ERTS_PSFLG_PENDING_EXIT);
-#else
                 {
                     erts_aint32_t a = erts_atomic32_read_nob(&rp->state);
                     while (1) {
@@ -13006,7 +12596,6 @@ send_exit_signal(Process *c_p,		/* current process if and only
                         }
                     }
                 }
-#endif
 	    }
 	}
 	/* else:
@@ -13082,7 +12671,6 @@ static void doit_exit_monitor(ErtsMonitor *mon, void *vpcontext)
 		    }
 		    erts_destroy_monitor(rmon);
 		}
-		erts_deref_dist_entry(dep);
 	    }
 	} else {
             ASSERT(is_pid(mon->u.pid) || is_port(mon->u.pid));
@@ -13322,7 +12910,6 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext)
 	    erts_de_links_unlock(dep);
 	    if (rlnk)
 		erts_destroy_link(rlnk);
-	    erts_deref_dist_entry(dep);
 	}
 	break;
 	
@@ -13430,7 +13017,7 @@ erts_continue_exit_process(Process *p)
     ErtsMonitor *mon;
     ErtsProcLocks curr_locks = ERTS_PROC_LOCK_MAIN;
     Eterm reason = p->fvalue;
-    DistEntry *dep;
+    DistEntry *dep = NULL;
     erts_aint32_t state;
     int delay_del_proc = 0;
 
@@ -13505,9 +13092,7 @@ erts_continue_exit_process(Process *p)
     erts_set_gc_state(p, 1);
     state = erts_atomic32_read_acqb(&p->state);
     if (state & ERTS_PSFLG_ACTIVE_SYS
-#ifdef ERTS_DIRTY_SCHEDULERS
         || p->dirty_sys_tasks
-#endif
         ) {
 	if (cleanup_sys_tasks(p, state, CONTEXT_REDS) >= CONTEXT_REDS/2)
 	    goto yield;
@@ -13517,9 +13102,7 @@ erts_continue_exit_process(Process *p)
     erts_proc_lock(p, ERTS_PROC_LOCK_STATUS);
     ASSERT(p->sys_task_qs == NULL);
     ASSERT(ERTS_PROC_GET_DELAYED_GC_TASK_QS(p) == NULL);
-#ifdef ERTS_DIRTY_SCHEDULERS
     ASSERT(p->dirty_sys_tasks == NULL);
-#endif
     erts_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
 #endif
 
@@ -13616,7 +13199,6 @@ erts_continue_exit_process(Process *p)
 		break;
 	}
 
-#ifdef ERTS_DIRTY_SCHEDULERS
         if (a & (ERTS_PSFLG_DIRTY_RUNNING
                  | ERTS_PSFLG_DIRTY_RUNNING_SYS)) {
 	    p->flags |= F_DELAYED_DEL_PROC;
@@ -13626,18 +13208,20 @@ erts_continue_exit_process(Process *p)
              * when done with the process...
 	     */
 	}
-#endif
 
 	if (refc_inced && !(n & ERTS_PSFLG_IN_RUNQ))
 	    erts_proc_dec_refc(p);
     }
-    
-    dep = (p->flags & F_DISTRIBUTION) ? erts_this_dist_entry : NULL;
+
+    dep = ((p->flags & F_DISTRIBUTION)
+           ? ERTS_PROC_SET_DIST_ENTRY(p, NULL)
+           : NULL);
 
     erts_proc_unlock(p, ERTS_PROC_LOCKS_ALL);
 
     if (dep) {
-	erts_do_net_exits(dep, reason);
+        erts_do_net_exits(dep, (reason == am_kill) ? am_killed : reason);
+        erts_deref_dist_entry(dep);
     }
 
     /*
@@ -14016,10 +13600,8 @@ void erts_halt(int code)
     if (-1 == erts_atomic32_cmpxchg_acqb(&erts_halt_progress,
 					     erts_no_schedulers,
 					     -1)) {
-#ifdef ERTS_DIRTY_SCHEDULERS
         ERTS_RUNQ_FLGS_SET(ERTS_DIRTY_CPU_RUNQ, ERTS_RUNQ_FLG_HALTING);
         ERTS_RUNQ_FLGS_SET(ERTS_DIRTY_IO_RUNQ, ERTS_RUNQ_FLG_HALTING);
-#endif
 	erts_halt_code = code;
 	notify_reap_ports_relb();
     }
@@ -14045,3 +13627,24 @@ erts_dbg_check_halloc_lock(Process *p)
     return 0;
 }
 #endif
+
+void
+erts_debug_later_op_foreach(void (*callback)(void*),
+                            void (*func)(void *, ErtsThrPrgrVal, void *),
+                            void *arg)
+{
+    int six;
+    if (!erts_thr_progress_is_blocking())
+	ERTS_INTERNAL_ERROR("Not blocking thread progress");
+
+    for (six = 0; six < erts_no_schedulers; six++) {
+        ErtsSchedulerData *esdp = &erts_aligned_scheduler_data[six].esd;
+	ErtsThrPrgrLaterOp *lop = esdp->aux_work_data.later_op.first;
+
+        while (lop) {
+            if (lop->func == callback)
+                func(arg, lop->later, lop->data);
+            lop = lop->next;
+        }
+    }
+}
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 7ca37882c2..66d7848f89 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -105,21 +105,16 @@ struct saved_calls {
 };
 
 extern Export exp_send, exp_receive, exp_timeout;
-extern int erts_eager_check_io;
 extern int erts_sched_compact_load;
 extern int erts_sched_balance_util;
 extern Uint erts_no_schedulers;
 extern Uint erts_no_total_schedulers;
-#ifdef ERTS_DIRTY_SCHEDULERS
 extern Uint erts_no_dirty_cpu_schedulers;
 extern Uint erts_no_dirty_io_schedulers;
-#endif
 extern Uint erts_no_run_queues;
 extern int erts_sched_thread_suggested_stack_size;
-#ifdef ERTS_DIRTY_SCHEDULERS
 extern int erts_dcpu_sched_thread_suggested_stack_size;
 extern int erts_dio_sched_thread_suggested_stack_size;
-#endif
 #define ERTS_SCHED_THREAD_MIN_STACK_SIZE 20	/* Kilo words */
 #define ERTS_SCHED_THREAD_MAX_STACK_SIZE 8192	/* Kilo words */
 
@@ -362,18 +357,18 @@ typedef enum {
 
 typedef struct ErtsSchedulerSleepInfo_ ErtsSchedulerSleepInfo;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 typedef struct {
     erts_spinlock_t lock;
     ErtsSchedulerSleepInfo *list;
 } ErtsSchedulerSleepList;
-#endif
 
 struct ErtsSchedulerSleepInfo_ {
+    struct ErtsSchedulerData_ *esdp;
     ErtsSchedulerSleepInfo *next;
     ErtsSchedulerSleepInfo *prev;
     erts_atomic32_t flags;
     erts_tse_t *event;
+    struct erts_poll_thread *psi;
     erts_atomic32_t aux_work;
 };
 
@@ -477,9 +472,7 @@ struct ErtsRunQueue_ {
     erts_mtx_t mtx;
     erts_cnd_t cnd;
 
-#ifdef ERTS_DIRTY_SCHEDULERS
     ErtsSchedulerSleepList sleepers;
-#endif
 
     ErtsSchedulerData *scheduler;
     int waiting; /* < 0 in sys schedule; > 0 on cnd variable */
@@ -616,13 +609,11 @@ typedef struct {
     (&(ESDP)->aux_work_data.yield.NAME)
 void erts_notify_new_aux_yield_work(ErtsSchedulerData *esdp);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 typedef enum {
     ERTS_DIRTY_CPU_SCHEDULER,
     ERTS_DIRTY_IO_SCHEDULER
 } ErtsDirtySchedulerType;
 
-#endif
 
 struct ErtsSchedulerData_ {
     /*
@@ -645,10 +636,8 @@ struct ErtsSchedulerData_ {
     Process *current_process;
     ErtsSchedType type;
     Uint no;			/* Scheduler number for normal schedulers */
-#ifdef ERTS_DIRTY_SCHEDULERS
     Uint dirty_no;  /* Scheduler number for dirty schedulers */
     Process *dirty_shadow_process;
-#endif
     Port *current_port;
     ErtsRunQueue *run_queue;
     int virtual_reds;
@@ -687,16 +676,19 @@ typedef union {
 } ErtsAlignedSchedulerData;
 
 extern ErtsAlignedSchedulerData *erts_aligned_scheduler_data;
-#ifdef ERTS_DIRTY_SCHEDULERS
 extern ErtsAlignedSchedulerData *erts_aligned_dirty_cpu_scheduler_data;
 extern ErtsAlignedSchedulerData *erts_aligned_dirty_io_scheduler_data;
-#endif
 
 
 #if defined(ERTS_ENABLE_LOCK_CHECK)
 int erts_lc_runq_is_locked(ErtsRunQueue *);
 #endif
 
+void
+erts_debug_later_op_foreach(void (*callback)(void*),
+                            void (*func)(void *, ErtsThrPrgrVal, void *),
+                            void *arg);
+
 #ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
 
 void erts_empty_runq(ErtsRunQueue *rq);
@@ -803,14 +795,15 @@ erts_reset_max_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi)
 #define ERTS_PSD_NIF_TRAP_EXPORT		5
 #define ERTS_PSD_ETS_OWNED_TABLES               6
 #define ERTS_PSD_ETS_FIXED_TABLES               7
-#define ERTS_PSD_SUSPENDED_SAVED_CALLS_BUF	8
+#define ERTS_PSD_DIST_ENTRY	                8
+#define ERTS_PSD_SUSPENDED_SAVED_CALLS_BUF	9 /* keep last... */
 
-#define ERTS_PSD_SIZE				9
+#define ERTS_PSD_SIZE				10
 
 #if !defined(HIPE)
 #  undef ERTS_PSD_SUSPENDED_SAVED_CALLS_BUF
 #  undef ERTS_PSD_SIZE
-#  define ERTS_PSD_SIZE 8
+#  define ERTS_PSD_SIZE 9
 #endif
 
 typedef struct {
@@ -844,6 +837,9 @@ typedef struct {
 #define ERTS_PSD_ETS_FIXED_TABLES_GET_LOCKS ERTS_PROC_LOCK_MAIN
 #define ERTS_PSD_ETS_FIXED_TABLES_SET_LOCKS ERTS_PROC_LOCK_MAIN
 
+#define ERTS_PSD_DIST_ENTRY_GET_LOCKS ERTS_PROC_LOCK_MAIN
+#define ERTS_PSD_DIST_ENTRY_SET_LOCKS ERTS_PROC_LOCK_MAIN
+
 typedef struct {
     ErtsProcLocks get_locks;
     ErtsProcLocks set_locks;
@@ -1049,14 +1045,10 @@ struct process {
     Uint64 bin_old_vheap;	/* Virtual old heap size for binaries */
 
     ErtsProcSysTaskQs *sys_task_qs;
-#ifdef ERTS_DIRTY_SCHEDULERS
     ErtsProcSysTask *dirty_sys_tasks;
-#endif
 
     erts_atomic32_t state;  /* Process state flags (see ERTS_PSFLG_*) */
-#ifdef ERTS_DIRTY_SCHEDULERS
     erts_atomic32_t dirty_state; /* Process dirty state flags (see ERTS_PDSFLG_*) */
-#endif
 
     ErlMessageInQueue msg_inq;
     ErlTraceMessageQueue *trace_msg_q;
@@ -1213,7 +1205,6 @@ void erts_check_for_holes(Process* p);
 #define ERTS_PSFLGS_GET_PRQ_PRIO(PSFLGS) \
     (((PSFLGS) >> ERTS_PSFLGS_PRQ_PRIO_OFFSET) & ERTS_PSFLGS_PRIO_MASK)
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 
 /*
  * Flags in the dirty_state field.
@@ -1240,7 +1231,6 @@ void erts_check_for_holes(Process* p);
 					 | ERTS_PDSFLG_IN_CPU_PRQ_HIGH	\
 					 | ERTS_PDSFLG_IN_CPU_PRQ_NORMAL\
 					 | ERTS_PDSFLG_IN_CPU_PRQ_LOW)
-#endif
 
 
 /*
@@ -1505,20 +1495,14 @@ extern int erts_system_profile_ts_type;
 	}						\
     } while (0)
 
-#if defined(ERTS_DIRTY_SCHEDULERS)
 #define ERTS_NUM_DIRTY_CPU_RUNQS 1
 #define ERTS_NUM_DIRTY_IO_RUNQS 1
-#else
-#define ERTS_NUM_DIRTY_CPU_RUNQS 0
-#define ERTS_NUM_DIRTY_IO_RUNQS 0
-#endif
 
 #define ERTS_NUM_DIRTY_RUNQS (ERTS_NUM_DIRTY_CPU_RUNQS+ERTS_NUM_DIRTY_IO_RUNQS)
 
 #define ERTS_RUNQ_IX(IX)						\
   (ASSERT(0 <= (IX) && (IX) < erts_no_run_queues+ERTS_NUM_DIRTY_RUNQS), \
    &erts_aligned_run_queues[(IX)].runq)
-#ifdef ERTS_DIRTY_SCHEDULERS
 #define ERTS_RUNQ_IX_IS_DIRTY(IX)					\
   (ASSERT(0 <= (IX) && (IX) < erts_no_run_queues+ERTS_NUM_DIRTY_RUNQS), \
    (erts_no_run_queues <= (IX)))
@@ -1529,13 +1513,9 @@ extern int erts_system_profile_ts_type;
 #define ERTS_DIRTY_IO_RUNQ  (&erts_aligned_run_queues[erts_no_run_queues+1].runq)
 #define ERTS_RUNQ_IS_DIRTY_CPU_RUNQ(RQ) ((RQ) == ERTS_DIRTY_CPU_RUNQ)
 #define ERTS_RUNQ_IS_DIRTY_IO_RUNQ(RQ) ((RQ) == ERTS_DIRTY_IO_RUNQ)
-#else
-#define ERTS_RUNQ_IX_IS_DIRTY(IX) 0
-#endif
 #define ERTS_SCHEDULER_IX(IX)						\
   (ASSERT(0 <= (IX) && (IX) < erts_no_schedulers),			\
    &erts_aligned_scheduler_data[(IX)].esd)
-#ifdef ERTS_DIRTY_SCHEDULERS
 #define ERTS_DIRTY_CPU_SCHEDULER_IX(IX)					\
   (ASSERT(0 <= (IX) && (IX) < erts_no_dirty_cpu_schedulers),		\
    &erts_aligned_dirty_cpu_scheduler_data[(IX)].esd)
@@ -1548,24 +1528,12 @@ extern int erts_system_profile_ts_type;
     ((ESDP)->type == ERTS_SCHED_DIRTY_CPU)
 #define ERTS_SCHEDULER_IS_DIRTY_IO(ESDP)				\
     ((ESDP)->type == ERTS_SCHED_DIRTY_IO)
-#else /* !ERTS_DIRTY_SCHEDULERS */
-#define ERTS_RUNQ_IX_IS_DIRTY(IX) 0
-#define ERTS_SCHEDULER_IS_DIRTY(ESDP) 0
-#define ERTS_SCHEDULER_IS_DIRTY_CPU(ESDP) 0
-#define ERTS_SCHEDULER_IS_DIRTY_IO(ESDP) 0
-#endif
 
 void erts_pre_init_process(void);
 void erts_late_init_process(void);
 void erts_early_init_scheduling(int);
-void erts_init_scheduling(int, int
-#ifdef ERTS_DIRTY_SCHEDULERS
-			  , int, int, int
-#endif
-			  );
-#ifdef ERTS_DIRTY_SCHEDULERS
+void erts_init_scheduling(int, int, int, int, int, int);
 void erts_execute_dirty_system_task(Process *c_p);
-#endif
 int erts_set_gc_state(Process *c_p, int enable);
 Eterm erts_sched_wall_time_request(Process *c_p, int set, int enable,
                                    int dirty_cpu, int want_dirty_io);
@@ -1576,6 +1544,7 @@ Uint64 erts_ensure_later_proc_interval(Uint64);
 Uint64 erts_step_proc_interval(void);
 
 ErtsProcList *erts_proclist_create(Process *);
+ErtsProcList *erts_proclist_copy(ErtsProcList *);
 void erts_proclist_destroy(ErtsProcList *);
 
 ERTS_GLB_INLINE int erts_proclist_same(ErtsProcList *, Process *);
@@ -2041,6 +2010,11 @@ erts_psd_set(Process *p, int ix, void *data)
 #define ERTS_PROC_SET_NIF_TRAP_EXPORT(P, NTE) \
     erts_psd_set((P), ERTS_PSD_NIF_TRAP_EXPORT, (void *) (NTE))
 
+#define ERTS_PROC_GET_DIST_ENTRY(P) \
+    ((DistEntry *) erts_psd_get((P), ERTS_PSD_DIST_ENTRY))
+#define ERTS_PROC_SET_DIST_ENTRY(P, DE) \
+    ((DistEntry *) erts_psd_set((P), ERTS_PSD_DIST_ENTRY, (void *) (DE)))
+
 #ifdef HIPE
 #define ERTS_PROC_GET_SUSPENDED_SAVED_CALLS_BUF(P) \
   ((struct saved_calls *) erts_psd_get((P), ERTS_PSD_SUSPENDED_SAVED_CALLS_BUF))
@@ -2227,7 +2201,6 @@ ErtsSchedulerData *erts_proc_sched_data(Process *c_p)
     ErtsSchedulerData *esdp;
     ASSERT(c_p);
     esdp = c_p->scheduler_data;
-#  if defined(ERTS_DIRTY_SCHEDULERS)
     if (esdp) {
 	ASSERT(esdp == erts_get_scheduler_data());
 	ASSERT(!ERTS_SCHEDULER_IS_DIRTY(esdp));
@@ -2237,7 +2210,6 @@ ErtsSchedulerData *erts_proc_sched_data(Process *c_p)
 	ASSERT(esdp);
 	ASSERT(ERTS_SCHEDULER_IS_DIRTY(esdp));
     }
-#  endif
     ASSERT(esdp);
     return esdp;
 }
@@ -2269,11 +2241,9 @@ ERTS_GLB_INLINE
 Uint erts_get_scheduler_id(void)
 {
     ErtsSchedulerData *esdp = erts_get_scheduler_data();
-#ifdef ERTS_DIRTY_SCHEDULERS
     if (esdp && ERTS_SCHEDULER_IS_DIRTY(esdp))
 	return 0;
     else
-#endif
 	return esdp ? esdp->no : (Uint) 0;
 }
 
@@ -2499,6 +2469,7 @@ void erts_notify_inc_runq(ErtsRunQueue *runq);
 
 void erts_sched_finish_poke(ErtsSchedulerSleepInfo *, erts_aint32_t);
 ERTS_GLB_INLINE void erts_sched_poke(ErtsSchedulerSleepInfo *ssi);
+void erts_aux_thread_poke(void);
 
 #if ERTS_GLB_INLINE_INCL_FUNC_DEF
 
diff --git a/erts/emulator/beam/erl_process_dump.c b/erts/emulator/beam/erl_process_dump.c
index 5a2c262ff1..0b7f361622 100644
--- a/erts/emulator/beam/erl_process_dump.c
+++ b/erts/emulator/beam/erl_process_dump.c
@@ -32,6 +32,7 @@
 #include "dist.h"
 #include "beam_catches.h"
 #include "erl_binary.h"
+#include "erl_map.h"
 #define ERTS_WANT_EXTERNAL_TAGS
 #include "external.h"
 
@@ -51,6 +52,11 @@ static void print_function_from_pc(fmtfn_t to, void *to_arg, BeamInstr* x);
 static void heap_dump(fmtfn_t to, void *to_arg, Eterm x);
 static void dump_binaries(fmtfn_t to, void *to_arg, Binary* root);
 static void dump_externally(fmtfn_t to, void *to_arg, Eterm term);
+static void mark_literal(Eterm* ptr);
+static void init_literal_areas(void);
+static void dump_literals(fmtfn_t to, void *to_arg);
+static void dump_module_literals(fmtfn_t to, void *to_arg,
+                                 ErtsLiteralArea* lit_area);
 
 static Binary* all_binaries;
 
@@ -58,14 +64,14 @@ extern BeamInstr beam_apply[];
 extern BeamInstr beam_exit[];
 extern BeamInstr beam_continue_exit[];
 
-
 void
 erts_deep_process_dump(fmtfn_t to, void *to_arg)
 {
     int i, max = erts_ptab_max(&erts_proc);
 
     all_binaries = NULL;
-    
+    init_literal_areas();
+
     for (i = 0; i < max; i++) {
 	Process *p = erts_pix2proc(i);
 	if (p && p->i != ENULL) {
@@ -75,6 +81,7 @@ erts_deep_process_dump(fmtfn_t to, void *to_arg)
        }
     }
 
+    dump_literals(to, to_arg);
     dump_binaries(to, to_arg, all_binaries);
 }
 
@@ -373,7 +380,9 @@ heap_dump(fmtfn_t to, void *to_arg, Eterm x)
 	    next = (Eterm *) x;
 	} else if (is_list(x)) {
 	    ptr = list_val(x);
-	    if (ptr[0] != OUR_NIL) {
+            if (erts_is_literal(x, ptr)) {
+                mark_literal(ptr);
+            } else if (ptr[0] != OUR_NIL) {
 		erts_print(to, to_arg, PTR_FMT ":l", ptr);
 		dump_element(to, to_arg, ptr[0]);
 		erts_putc(to, to_arg, '|');
@@ -392,7 +401,9 @@ heap_dump(fmtfn_t to, void *to_arg, Eterm x)
 
 	    ptr = boxed_val(x);
 	    hdr = *ptr;
-	    if (hdr != OUR_NIL) {	/* If not visited */
+            if (erts_is_literal(x, ptr)) {
+                mark_literal(ptr);
+            } else if (hdr != OUR_NIL) {
 		erts_print(to, to_arg, PTR_FMT ":", ptr);
 	        if (is_arity_value(hdr)) {
 		    Uint i;
@@ -498,11 +509,77 @@ heap_dump(fmtfn_t to, void *to_arg, Eterm x)
 		    erts_print(to, to_arg, "p<%beu.%beu>\n",
 			       port_channel_no(x), port_number(x));
 		    *ptr = OUR_NIL;
+		} else if (is_map_header(hdr)) {
+                    if (is_flatmap_header(hdr)) {
+                        flatmap_t* fmp = (flatmap_t *) flatmap_val(x);
+                        Eterm* values = ptr + sizeof(flatmap_t) / sizeof(Eterm);
+                        Uint map_size = fmp->size;
+                        int i;
+
+                        erts_print(to, to_arg, "Mf" ETERM_FMT ":", map_size);
+                        dump_element(to, to_arg, fmp->keys);
+                        erts_putc(to, to_arg, ':');
+                        for (i = 0; i < map_size; i++) {
+                            dump_element(to, to_arg, values[i]);
+                            if (is_immed(values[i])) {
+                                values[i] = make_small(0);
+                            }
+                            if (i < map_size-1) {
+                                erts_putc(to, to_arg, ',');
+                            }
+                        }
+                        erts_putc(to, to_arg, '\n');
+                        *ptr = OUR_NIL;
+                        x = fmp->keys;
+                        if (map_size) {
+                            fmp->keys = (Eterm) next;
+                            next = &values[map_size-1];
+                        }
+                        continue;
+                    } else {
+                        Uint i;
+                        Uint sz = 0;
+                        Eterm* nodes = ptr + 1;
+
+                        switch (MAP_HEADER_TYPE(hdr)) {
+                        case MAP_HEADER_TAG_HAMT_HEAD_ARRAY:
+                            nodes++;
+                            sz = 16;
+                            erts_print(to, to_arg, "Mh" ETERM_FMT ":" ETERM_FMT ":",
+                                       hashmap_size(x), sz);
+                            break;
+                        case MAP_HEADER_TAG_HAMT_HEAD_BITMAP:
+                            nodes++;
+                            sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+                            erts_print(to, to_arg, "Mh" ETERM_FMT ":" ETERM_FMT ":",
+                                       hashmap_size(x), sz);
+                            break;
+                        case MAP_HEADER_TAG_HAMT_NODE_BITMAP:
+                            sz = hashmap_bitcount(MAP_HEADER_VAL(hdr));
+                            erts_print(to, to_arg, "Mn" ETERM_FMT ":", sz);
+                            break;
+                        }
+                        *ptr = OUR_NIL;
+                        for (i = 0; i < sz; i++) {
+                            dump_element(to, to_arg, nodes[i]);
+                            if (is_immed(nodes[i])) {
+                                nodes[i] = make_small(0);
+                            }
+                            if (i < sz-1) {
+                                erts_putc(to, to_arg, ',');
+                            }
+                        }
+                        erts_putc(to, to_arg, '\n');
+                        x = nodes[0];
+                        nodes[0] = (Eterm) next;
+                        next = &nodes[sz-1];
+                        continue;
+                    }
 		} else {
 		    /*
 		     * All other we dump in the external term format.
 		     */
-			dump_externally(to, to_arg, x);
+                    dump_externally(to, to_arg, x);
 		    erts_putc(to, to_arg, '\n');
 		    *ptr = OUR_NIL;
 		}
@@ -564,11 +641,6 @@ dump_externally(fmtfn_t to, void *to_arg, Eterm term)
 	}
     }
 
-    /* Do not handle maps */
-    if (is_map(term)) {
-        term = am_undefined;
-    }
-
     s = p = sbuf;
     erts_encode_ext(term, &p);
     erts_print(to, to_arg, "E%X:", p-s);
@@ -577,6 +649,284 @@ dump_externally(fmtfn_t to, void *to_arg, Eterm term)
     }
 }
 
+/*
+ * Handle dumping of literal areas.
+ */
+
+static ErtsLiteralArea** lit_areas;
+static Uint num_lit_areas;
+
+static int compare_areas(const void * a, const void * b)
+{
+    ErtsLiteralArea** a_p = (ErtsLiteralArea **) a;
+    ErtsLiteralArea** b_p = (ErtsLiteralArea **) b;
+
+    if (*a_p < *b_p) {
+        return -1;
+    } else if (*b_p < *a_p) {
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+
+static void
+init_literal_areas(void)
+{
+    int i;
+    Module* modp;
+    ErtsCodeIndex code_ix;
+    ErtsLiteralArea** area_p;
+
+    code_ix = erts_active_code_ix();
+    erts_rlock_old_code(code_ix);
+
+    lit_areas = area_p = erts_dump_lit_areas;
+    num_lit_areas = 0;
+    for (i = 0; i < module_code_size(code_ix); i++) {
+	modp = module_code(i, code_ix);
+        if (modp == NULL) {
+            continue;
+        }
+        if (modp->curr.code_length > 0 &&
+            modp->curr.code_hdr->literal_area) {
+            *area_p++ = modp->curr.code_hdr->literal_area;
+        }
+        if (modp->old.code_length > 0 && modp->old.code_hdr->literal_area) {
+            *area_p++ = modp->old.code_hdr->literal_area;
+        }
+    }
+
+    num_lit_areas = area_p - lit_areas;
+    ASSERT(num_lit_areas <= erts_dump_num_lit_areas);
+    for (i = 0; i < num_lit_areas; i++) {
+        lit_areas[i]->off_heap = 0;
+    }
+
+    qsort(lit_areas, num_lit_areas, sizeof(ErtsLiteralArea *),
+          compare_areas);
+
+    erts_runlock_old_code(code_ix);
+}
+
+static int search_areas(const void * a, const void * b) {
+    Eterm* key = (Eterm *) a;
+    ErtsLiteralArea** b_p = (ErtsLiteralArea **) b;
+    if (key < b_p[0]->start) {
+        return -1;
+    } else if (b_p[0]->end <= key) {
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+static void mark_literal(Eterm* ptr)
+{
+    ErtsLiteralArea** ap;
+
+    ap = bsearch(ptr, lit_areas, num_lit_areas, sizeof(ErtsLiteralArea*),
+                 search_areas);
+
+    /*
+     * If the literal was created by native code, this search will not
+     * find it and ap will be NULL.
+     */
+
+    if (ap) {
+        ap[0]->off_heap = (struct erl_off_heap_header *) 1;
+    }
+}
+
+
+static void
+dump_literals(fmtfn_t to, void *to_arg)
+{
+    ErtsCodeIndex code_ix;
+    int i;
+
+    code_ix = erts_active_code_ix();
+    erts_rlock_old_code(code_ix);
+
+    erts_print(to, to_arg, "=literals\n");
+    for (i = 0; i < num_lit_areas; i++) {
+        if (lit_areas[i]->off_heap) {
+            dump_module_literals(to, to_arg, lit_areas[i]);
+        }
+    }
+
+    erts_runlock_old_code(code_ix);
+}
+
+static void
+dump_module_literals(fmtfn_t to, void *to_arg, ErtsLiteralArea* lit_area)
+{
+    Eterm* htop;
+    Eterm* hend;
+
+    htop = lit_area->start;
+    hend = lit_area->end;
+    while (htop < hend) {
+        Eterm w = *htop;
+        Eterm term;
+        Uint size;
+
+        switch (primary_tag(w)) {
+        case TAG_PRIMARY_HEADER:
+            term = make_boxed(htop);
+            erts_print(to, to_arg, PTR_FMT ":", htop);
+            if (is_arity_value(w)) {
+                Uint i;
+                Uint arity = arityval(w);
+
+                erts_print(to, to_arg, "t" ETERM_FMT ":", arity);
+                for (i = 1; i <= arity; i++) {
+                    dump_element(to, to_arg, htop[i]);
+                    if (i < arity) {
+                        erts_putc(to, to_arg, ',');
+                    }
+                }
+                erts_putc(to, to_arg, '\n');
+            } else if (w == HEADER_FLONUM) {
+                FloatDef f;
+                char sbuf[31];
+                int i;
+
+                GET_DOUBLE_DATA((htop+1), f);
+                i = sys_double_to_chars(f.fd, sbuf, sizeof(sbuf));
+                sys_memset(sbuf+i, 0, 31-i);
+                erts_print(to, to_arg, "F%X:%s\n", i, sbuf);
+            } else if (_is_bignum_header(w)) {
+                erts_print(to, to_arg, "B%T\n", term);
+            } else if (is_binary_header(w)) {
+                Uint tag = thing_subtag(w);
+                Uint size = binary_size(term);
+                Uint i;
+
+                if (tag == HEAP_BINARY_SUBTAG) {
+                    byte* p;
+
+                    erts_print(to, to_arg, "Yh%X:", size);
+                    p = binary_bytes(term);
+                    for (i = 0; i < size; i++) {
+                        erts_print(to, to_arg, "%02X", p[i]);
+                    }
+                } else if (tag == REFC_BINARY_SUBTAG) {
+                    ProcBin* pb = (ProcBin *) binary_val(term);
+                    Binary* val = pb->val;
+
+                    if (erts_atomic_xchg_nob(&val->intern.refc, 0) != 0) {
+                        val->intern.flags = (UWord) all_binaries;
+                        all_binaries = val;
+                    }
+                    erts_print(to, to_arg,
+                               "Yc" PTR_FMT ":" PTR_FMT ":" PTR_FMT,
+                               val,
+                               pb->bytes - (byte *)val->orig_bytes,
+                               size);
+                } else if (tag == SUB_BINARY_SUBTAG) {
+                    ErlSubBin* Sb = (ErlSubBin *) binary_val(term);
+                    Eterm* real_bin;
+                    void* val;
+
+                    real_bin = boxed_val(Sb->orig);
+                    if (thing_subtag(*real_bin) == REFC_BINARY_SUBTAG) {
+                        /*
+                         * Unvisited REFC_BINARY: Point directly to
+                         * the binary.
+                         */
+                        ProcBin* pb = (ProcBin *) real_bin;
+                        val = pb->val;
+                    } else {
+                        /*
+                         * Heap binary or visited REFC binary: Point
+                         * to heap binary or ProcBin on the heap.
+                         */
+                        val = real_bin;
+                    }
+                    erts_print(to, to_arg,
+                               "Ys" PTR_FMT ":" PTR_FMT ":" PTR_FMT,
+                               val, Sb->offs, size);
+                }
+                erts_putc(to, to_arg, '\n');
+            } else if (is_map_header(w)) {
+                if (is_flatmap_header(w)) {
+                    flatmap_t* fmp = (flatmap_t *) flatmap_val(term);
+                    Eterm* values = htop + sizeof(flatmap_t) / sizeof(Eterm);
+                    Uint map_size = fmp->size;
+                    int i;
+
+                    erts_print(to, to_arg, "Mf" ETERM_FMT ":", map_size);
+                    dump_element(to, to_arg, fmp->keys);
+                    erts_putc(to, to_arg, ':');
+                    for (i = 0; i < map_size; i++) {
+                        dump_element(to, to_arg, values[i]);
+                        if (i < map_size-1) {
+                            erts_putc(to, to_arg, ',');
+                        }
+                    }
+                    erts_putc(to, to_arg, '\n');
+                } else {
+                    Uint i;
+                    Uint sz = 0;
+                    Eterm* nodes = htop + 1;
+
+                    switch (MAP_HEADER_TYPE(w)) {
+                    case MAP_HEADER_TAG_HAMT_HEAD_ARRAY:
+                        nodes++;
+                        sz = 16;
+                        erts_print(to, to_arg, "Mh" ETERM_FMT ":" ETERM_FMT ":",
+                                   hashmap_size(term), sz);
+                        break;
+                    case MAP_HEADER_TAG_HAMT_HEAD_BITMAP:
+                        nodes++;
+                        sz = hashmap_bitcount(MAP_HEADER_VAL(w));
+                        erts_print(to, to_arg, "Mh" ETERM_FMT ":" ETERM_FMT ":",
+                                   hashmap_size(term), sz);
+                        break;
+                    case MAP_HEADER_TAG_HAMT_NODE_BITMAP:
+                        sz = hashmap_bitcount(MAP_HEADER_VAL(w));
+                        erts_print(to, to_arg, "Mn" ETERM_FMT ":", sz);
+                        break;
+                    }
+                    for (i = 0; i < sz; i++) {
+                        dump_element(to, to_arg, nodes[i]);
+                        if (i < sz-1) {
+                            erts_putc(to, to_arg, ',');
+                        }
+                    }
+                    erts_putc(to, to_arg, '\n');
+                }
+            }
+            size = 1 + header_arity(w);
+            switch (w & _HEADER_SUBTAG_MASK) {
+            case MAP_SUBTAG:
+                if (is_flatmap_header(w)) {
+                    size += 1 + flatmap_get_size(htop);
+                } else {
+                    size += hashmap_bitcount(MAP_HEADER_VAL(w));
+                }
+                break;
+            case SUB_BINARY_SUBTAG:
+                size += 1;
+                break;
+            }
+            break;
+        default:
+            ASSERT(!is_header(htop[1]));
+            erts_print(to, to_arg, PTR_FMT ":l", htop);
+            dump_element(to, to_arg, htop[0]);
+            erts_putc(to, to_arg, '|');
+            dump_element(to, to_arg, htop[1]);
+            erts_putc(to, to_arg, '\n');
+            size = 2;
+            break;
+        }
+        htop += size;
+    }
+}
+
 void erts_dump_process_state(fmtfn_t to, void *to_arg, erts_aint32_t psflg)
 {
     char *s;
diff --git a/erts/emulator/beam/erl_sched_spec_pre_alloc.c b/erts/emulator/beam/erl_sched_spec_pre_alloc.c
index 6cb7ccab8d..ab204303d7 100644
--- a/erts/emulator/beam/erl_sched_spec_pre_alloc.c
+++ b/erts/emulator/beam/erl_sched_spec_pre_alloc.c
@@ -37,7 +37,7 @@
 #include "erl_thr_progress.h"
 
 erts_sspa_data_t *
-erts_sspa_create(size_t blk_sz, int pa_size)
+erts_sspa_create(size_t blk_sz, int pa_size, int nthreads, const char* name)
 {
     erts_sspa_data_t *data;
     size_t tot_size;
@@ -48,22 +48,30 @@ erts_sspa_create(size_t blk_sz, int pa_size)
     int no_blocks = pa_size;
     int no_blocks_per_chunk;
 
-    if (erts_no_schedulers == 1)
+    if (!name) { /* schedulers only variant */
+        ASSERT(!nthreads);
+        nthreads = erts_no_schedulers;
+    }
+    else {
+        ASSERT(nthreads > 0);
+    }
+
+    if (nthreads == 1)
 	no_blocks_per_chunk = no_blocks;
     else {
 	int extra = (no_blocks - 1)/4 + 1;
 	if (extra == 0)
 	    extra = 1;
 	no_blocks_per_chunk = no_blocks;
-	no_blocks_per_chunk += extra*erts_no_schedulers;
-	no_blocks_per_chunk /= erts_no_schedulers;
+	no_blocks_per_chunk += extra * nthreads;
+	no_blocks_per_chunk /= nthreads;
     }
-    no_blocks = no_blocks_per_chunk * erts_no_schedulers;
+    no_blocks = no_blocks_per_chunk * nthreads;
     chunk_mem_size = ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(erts_sspa_chunk_header_t));
     chunk_mem_size += blk_sz * no_blocks_per_chunk;
     chunk_mem_size = ERTS_ALC_CACHE_LINE_ALIGN_SIZE(chunk_mem_size);
     tot_size = ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(erts_sspa_data_t));
-    tot_size += chunk_mem_size*erts_no_schedulers;
+    tot_size += chunk_mem_size * nthreads;
 
     p = erts_alloc_permanent_cache_aligned(ERTS_ALC_T_PRE_ALLOC_DATA, tot_size);
     data = (erts_sspa_data_t *) p;
@@ -72,10 +80,16 @@ erts_sspa_create(size_t blk_sz, int pa_size)
 
     data->chunks_mem_size = chunk_mem_size;
     data->start = chunk_start;
-    data->end = chunk_start + chunk_mem_size*erts_no_schedulers;
+    data->end = chunk_start + chunk_mem_size * nthreads;
+    data->nthreads = nthreads;
+
+    if (name) { /* thread variant */
+        erts_tsd_key_create(&data->tsd_key, (char*)name);
+        erts_atomic_init_nob(&data->id_generator, 0);
+    }
 
     /* Initialize all chunks */
-    for (cix = 0; cix < erts_no_schedulers; cix++) {
+    for (cix = 0; cix < nthreads; cix++) {
 	erts_sspa_chunk_t *chnk = erts_sspa_cix2chunk(data, cix);
 	erts_sspa_chunk_header_t *chdr = &chnk->aligned.header;
 	erts_sspa_blk_t *blk;
diff --git a/erts/emulator/beam/erl_sched_spec_pre_alloc.h b/erts/emulator/beam/erl_sched_spec_pre_alloc.h
index 1307e65962..d232db0e69 100644
--- a/erts/emulator/beam/erl_sched_spec_pre_alloc.h
+++ b/erts/emulator/beam/erl_sched_spec_pre_alloc.h
@@ -59,6 +59,11 @@ typedef struct {
     char *start;
     char *end;
     int chunks_mem_size;
+    int nthreads;
+
+    /* Used only by thread variant: */
+    erts_tsd_key_t tsd_key;
+    erts_atomic_t id_generator;
 } erts_sspa_data_t;
 
 typedef union erts_sspa_blk_t_ erts_sspa_blk_t;
@@ -140,7 +145,9 @@ check_local_list(erts_sspa_chunk_header_t *chdr)
 #endif
 
 erts_sspa_data_t *erts_sspa_create(size_t blk_sz,
-				   int pa_size);
+				   int pa_size,
+                                   int nthreads,
+                                   const char* name);
 void erts_sspa_remote_free(erts_sspa_chunk_header_t *chdr,
 			   erts_sspa_blk_t *blk,
 			   int cinit);
@@ -158,7 +165,7 @@ ERTS_GLB_INLINE int erts_sspa_free(erts_sspa_data_t *data, int cix, char *blk);
 ERTS_GLB_INLINE erts_sspa_chunk_t *
 erts_sspa_cix2chunk(erts_sspa_data_t *data, int cix)
 {
-    ASSERT(0 <= cix && cix < erts_no_schedulers);
+    ASSERT(0 <= cix && cix < data->nthreads);
     return (erts_sspa_chunk_t *) (data->start + cix*data->chunks_mem_size);
 }
 
@@ -171,7 +178,7 @@ erts_sspa_ptr2cix(erts_sspa_data_t *data, void *ptr)
 	return -1;
     diff = ((char *) ptr) - data->start;
     cix = (int) diff / data->chunks_mem_size;
-    ASSERT(0 <= cix && cix < erts_no_schedulers);
+    ASSERT(0 <= cix && cix < data->nthreads);
     return cix;
 }
 
diff --git a/erts/emulator/beam/erl_term.h b/erts/emulator/beam/erl_term.h
index 842802f8d9..6daf043117 100644
--- a/erts/emulator/beam/erl_term.h
+++ b/erts/emulator/beam/erl_term.h
@@ -270,7 +270,6 @@ _ET_DECLARE_CHECKED(Eterm*,list_val,Wterm)
 #define is_byte(x)	(((x) & ((~(Uint)0 << (_TAG_IMMED1_SIZE+8)) + _TAG_IMMED1_MASK)) == _TAG_IMMED1_SMALL)
 #define is_valid_bit_size(x) (((Sint)(x)) >= 0 && ((x) & 0x7F) == _TAG_IMMED1_SMALL)
 #define is_not_valid_bit_size(x) (!is_valid_bit_size((x)))
-#define MY_IS_SSMALL(x) (((Uint) ((((x)) >> (SMALL_BITS-1)) + 1)) < 2)
 #define _unchecked_unsigned_val(x)	((x) >> _TAG_IMMED1_SIZE)
 _ET_DECLARE_CHECKED(Uint,unsigned_val,Eterm)
 #define unsigned_val(x)	_ET_APPLY(unsigned_val,(x))
diff --git a/erts/emulator/beam/erl_threads.h b/erts/emulator/beam/erl_threads.h
index e306df818d..aedceb6fc2 100644
--- a/erts/emulator/beam/erl_threads.h
+++ b/erts/emulator/beam/erl_threads.h
@@ -454,7 +454,6 @@ ERTS_GLB_INLINE void erts_rwmtx_runlock(erts_rwmtx_t *rwmtx);
 ERTS_GLB_INLINE void erts_rwmtx_rwunlock(erts_rwmtx_t *rwmtx);
 ERTS_GLB_INLINE int erts_lc_rwmtx_is_rlocked(erts_rwmtx_t *mtx);
 ERTS_GLB_INLINE int erts_lc_rwmtx_is_rwlocked(erts_rwmtx_t *mtx);
-
 ERTS_GLB_INLINE void erts_spinlock_init(erts_spinlock_t *lock,
                                         char *name,
                                         Eterm extra,
diff --git a/erts/emulator/beam/erl_time.h b/erts/emulator/beam/erl_time.h
index ccc5526664..27164d50a0 100644
--- a/erts/emulator/beam/erl_time.h
+++ b/erts/emulator/beam/erl_time.h
@@ -130,6 +130,13 @@ Eterm erts_get_monotonic_end_time(struct process *c_p);
 Eterm erts_monotonic_time_source(struct process*c_p);
 Eterm erts_system_time_source(struct process*c_p);
 
+void erts_runtime_elapsed_both(ErtsMonotonicTime *ms_user,
+                               ErtsMonotonicTime *ms_sys, 
+                               ErtsMonotonicTime *ms_user_diff,
+                               ErtsMonotonicTime *ms_sys_diff);
+void erts_wall_clock_elapsed_both(ErtsMonotonicTime *total,
+                                  ErtsMonotonicTime *diff);
+
 #ifdef SYS_CLOCK_RESOLUTION
 #define ERTS_CLKTCK_RESOLUTION ((ErtsMonotonicTime) (SYS_CLOCK_RESOLUTION*1000))
 #else
diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c
index c06b464458..f2e0900fec 100644
--- a/erts/emulator/beam/erl_time_sup.c
+++ b/erts/emulator/beam/erl_time_sup.c
@@ -36,12 +36,29 @@
 #include "erl_driver.h"
 #include "erl_nif.h"
  
-static erts_mtx_t erts_timeofday_mtx;
 static erts_mtx_t erts_get_time_mtx;
 
-static SysTimes t_start; /* Used in elapsed_time_both */
-static ErtsMonotonicTime prev_wall_clock_elapsed; /* Used in wall_clock_elapsed_time_both */
-static ErtsMonotonicTime previous_now; /* Used in get_now */
+ /* used by erts_runtime_elapsed_both */
+typedef struct {
+    erts_mtx_t mtx;
+    ErtsMonotonicTime user;
+    ErtsMonotonicTime sys;
+} ErtsRunTimePrevData;
+
+static union {
+    ErtsRunTimePrevData data;
+    char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsRunTimePrevData))];
+} runtime_prev erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+static union {
+    erts_atomic64_t time;
+    char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(erts_atomic64_t))];
+} wall_clock_prev erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+static union {
+    erts_atomic64_t time;
+    char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(erts_atomic64_t))];
+} now_prev erts_align_attribute(ERTS_CACHE_LINE_SIZE);
 
 static ErtsMonitor *time_offset_monitors = NULL;
 static Uint no_time_offset_monitors = 0;
@@ -954,10 +971,12 @@ erts_init_time_sup(int time_correction, ErtsTimeWarpMode time_warp_mode)
 
     ASSERT(ERTS_MONOTONIC_TIME_MIN < ERTS_MONOTONIC_TIME_MAX);
 
-    erts_mtx_init(&erts_timeofday_mtx, "timeofday", NIL,
-        ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_GENERIC);
     erts_mtx_init(&erts_get_time_mtx, "get_time", NIL,
         ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_GENERIC);
+    erts_mtx_init(&runtime_prev.data.mtx, "runtime", NIL,
+        ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_GENERIC);
+    runtime_prev.data.user = 0;
+    runtime_prev.data.sys = 0;
 
     time_sup.r.o.correction = time_correction;
     time_sup.r.o.warp_mode = time_warp_mode;
@@ -1157,9 +1176,13 @@ erts_init_time_sup(int time_correction, ErtsTimeWarpMode time_warp_mode)
 	time_sup.f.c.last_not_corrected_time = 0;
     }
 
-    prev_wall_clock_elapsed = 0;
+    erts_atomic64_init_nob(&wall_clock_prev.time,
+                           (erts_aint64_t) 0);
+
+    erts_atomic64_init_nob(
+        &now_prev.time,
+        (erts_aint64_t) ERTS_MONOTONIC_TO_USEC(get_time_offset()));
 
-    previous_now = ERTS_MONOTONIC_TO_USEC(get_time_offset());
 
 #ifdef DEBUG
     time_sup_initialized = 1;
@@ -1289,36 +1312,65 @@ erts_finalize_time_offset(void)
 /* info functions */
 
 void 
-elapsed_time_both(ErtsMonotonicTime *ms_user, ErtsMonotonicTime *ms_sys, 
-		  ErtsMonotonicTime *ms_user_diff, ErtsMonotonicTime *ms_sys_diff)
+erts_runtime_elapsed_both(ErtsMonotonicTime *ms_user, ErtsMonotonicTime *ms_sys, 
+                          ErtsMonotonicTime *ms_user_diff, ErtsMonotonicTime *ms_sys_diff)
 {
-    ErtsMonotonicTime prev_total_user, prev_total_sys;
-    ErtsMonotonicTime total_user, total_sys;
+    ErtsMonotonicTime prev_user, prev_sys, user, sys;
+
+#ifdef HAVE_GETRUSAGE
+
+    struct rusage now;
+
+    if (getrusage(RUSAGE_SELF, &now) != 0) {
+        erts_exit(ERTS_ABORT_EXIT, "getrusage(RUSAGE_SELF, _) failed: %d\n", errno);
+	return;
+    }
+
+    user = (ErtsMonotonicTime) now.ru_utime.tv_sec;
+    user *= (ErtsMonotonicTime) 1000000;
+    user += (ErtsMonotonicTime) now.ru_utime.tv_usec;
+    user /= (ErtsMonotonicTime) 1000;
+
+    sys = (ErtsMonotonicTime) now.ru_stime.tv_sec;
+    sys *= (ErtsMonotonicTime) 1000000;
+    sys += (ErtsMonotonicTime) now.ru_stime.tv_usec;
+    sys /= (ErtsMonotonicTime) 1000;
+
+#else
+
     SysTimes now;
 
     sys_times(&now);
-    total_user = (ErtsMonotonicTime) ((now.tms_utime * 1000) / SYS_CLK_TCK);
-    total_sys = (ErtsMonotonicTime) ((now.tms_stime * 1000) / SYS_CLK_TCK);
+    user = (ErtsMonotonicTime) now.tms_utime;
+    user *= (ErtsMonotonicTime) 1000;
+    user /= (ErtsMonotonicTime) SYS_CLK_TCK;
 
-    if (ms_user != NULL)
-	*ms_user = total_user;
-    if (ms_sys != NULL)
-	*ms_sys = total_sys;
+    sys = (ErtsMonotonicTime) now.tms_stime;
+    sys *= (ErtsMonotonicTime) 1000;
+    sys /= (ErtsMonotonicTime) SYS_CLK_TCK;
+
+#endif
+
+    if (ms_user)
+	*ms_user = user;
+    if (ms_sys)
+	*ms_sys = sys;
 
     if (ms_user_diff || ms_sys_diff) {
-        erts_mtx_lock(&erts_timeofday_mtx);
-    
-        prev_total_user = (ErtsMonotonicTime) ((t_start.tms_utime * 1000) / SYS_CLK_TCK);
-        prev_total_sys = (ErtsMonotonicTime) ((t_start.tms_stime * 1000) / SYS_CLK_TCK);
-        t_start = now;
-    
-        erts_mtx_unlock(&erts_timeofday_mtx);
+ 
+        erts_mtx_lock(&runtime_prev.data.mtx);
 
-        if (ms_user_diff != NULL)
-            *ms_user_diff = total_user - prev_total_user;
-	  
-        if (ms_sys_diff != NULL)
-            *ms_sys_diff = total_sys - prev_total_sys;
+        prev_user = runtime_prev.data.user;
+        prev_sys = runtime_prev.data.sys;
+        runtime_prev.data.user = user;
+        runtime_prev.data.sys = sys;
+
+        erts_mtx_unlock(&runtime_prev.data.mtx);
+
+        if (ms_user_diff)
+            *ms_user_diff = user - prev_user;
+        if (ms_sys_diff)
+            *ms_sys_diff = sys - prev_sys;
     }
 }
 
@@ -1326,7 +1378,7 @@ elapsed_time_both(ErtsMonotonicTime *ms_user, ErtsMonotonicTime *ms_sys,
 /* wall clock routines */
 
 void 
-wall_clock_elapsed_time_both(ErtsMonotonicTime *ms_total, ErtsMonotonicTime *ms_diff)
+erts_wall_clock_elapsed_both(ErtsMonotonicTime *ms_total, ErtsMonotonicTime *ms_diff)
 {
     ErtsMonotonicTime now, elapsed;
 
@@ -1334,16 +1386,18 @@ wall_clock_elapsed_time_both(ErtsMonotonicTime *ms_total, ErtsMonotonicTime *ms_
     update_last_mtime(NULL, now);
 
     elapsed = ERTS_MONOTONIC_TO_MSEC(now);
+    elapsed -= ERTS_MONOTONIC_TO_MSEC(ERTS_MONOTONIC_BEGIN);
 
     *ms_total = elapsed;
 
     if (ms_diff) {
-        erts_mtx_lock(&erts_timeofday_mtx);
+        ErtsMonotonicTime prev;
 
-        *ms_diff = elapsed - prev_wall_clock_elapsed;
-        prev_wall_clock_elapsed = elapsed;
+        prev = ((ErtsMonotonicTime)
+                erts_atomic64_xchg_mb(&wall_clock_prev.time,
+                                      (erts_aint64_t) elapsed));
 
-        erts_mtx_unlock(&erts_timeofday_mtx);
+        *ms_diff = elapsed - prev;
     }
 }
 
@@ -1722,22 +1776,27 @@ univ_to_local(Sint *year, Sint *month, Sint *day,
 void
 get_now(Uint* megasec, Uint* sec, Uint* microsec)
 {
-    ErtsMonotonicTime now_megasec, now_sec, now, mtime, time_offset;
+    ErtsMonotonicTime now_megasec, now_sec, now, prev, mtime, time_offset;
     
     mtime = time_sup.r.o.get_time();
     time_offset = get_time_offset();
     update_last_mtime(NULL, mtime);
     now = ERTS_MONOTONIC_TO_USEC(mtime + time_offset);
 
-    erts_mtx_lock(&erts_timeofday_mtx);
-
     /* Make sure now time is later than last time */
-    if (now <= previous_now)
-	now = previous_now + 1;
-
-    previous_now = now;
-    
-    erts_mtx_unlock(&erts_timeofday_mtx);
+    prev = erts_atomic64_read_nob(&now_prev.time);
+    while (1) {
+        ErtsMonotonicTime act;
+        if (now <= prev)
+            now = prev + 1;
+        act = ((ErtsMonotonicTime)
+               erts_atomic64_cmpxchg_mb(&now_prev.time,
+                                        (erts_aint64_t) now,
+                                        (erts_aint64_t) prev));
+        if (act == prev)
+            break;
+        prev = act;
+    }
 
     now_megasec = now / ERTS_MONOTONIC_TIME_TERA;
     now_sec = now / ERTS_MONOTONIC_TIME_MEGA;
diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index a07e3642f6..4b996d8fc2 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -1449,7 +1449,6 @@ monitor_long_schedule_port(Port *pp, ErtsPortTaskType type, Uint time)
     case ERTS_PORT_TASK_TIMEOUT: op = am_timeout; break;
     case ERTS_PORT_TASK_INPUT: op = am_input; break;
     case ERTS_PORT_TASK_OUTPUT: op = am_output; break;
-    case ERTS_PORT_TASK_EVENT: op = am_event; break;
     case ERTS_PORT_TASK_DIST_CMD: op = am_dist_cmd; break;
     default: op = am_undefined; break;
     }
diff --git a/erts/emulator/beam/erl_unicode.c b/erts/emulator/beam/erl_unicode.c
index 2d1d1443a7..b7a5c45fea 100644
--- a/erts/emulator/beam/erl_unicode.c
+++ b/erts/emulator/beam/erl_unicode.c
@@ -1988,7 +1988,7 @@ char *erts_convert_filename_to_encoding(Eterm name, char *statbuf, size_t statbu
 	is_list(name) || 
 	(allow_empty && is_nil(name))) {
 	Sint need;
-	if ((need = erts_native_filename_need(name,encoding)) < 0) {
+	if ((need = erts_native_filename_need(name, encoding)) < 0) {
 	    return NULL;
 	}
 	if (encoding == ERL_FILENAME_WIN_WCHAR) {
@@ -2152,12 +2152,13 @@ Eterm erts_convert_native_to_filename(Process *p, byte *bytes)
 }
 
 
-Sint erts_native_filename_need(Eterm ioterm, int encoding) 
+Sint erts_native_filename_need(Eterm ioterm, int encoding)
 {
     Eterm *objp;
     Eterm obj;
     DECLARE_ESTACK(stack);
     Sint need = 0;
+    int seen_null = 0;
 
     if (is_atom(ioterm)) {
 	Atom* ap;
@@ -2194,6 +2195,22 @@ Sint erts_native_filename_need(Eterm ioterm, int encoding)
 	default:
 	    need = -1;
 	}
+        /*
+         * Do not allow null in
+         * the middle of filenames
+         */
+        if (need > 0) {
+            byte *name = ap->name;
+            int len = ap->len;
+            for (i = 0; i < len; i++) {
+                if (name[i] == 0)
+                    seen_null = 1;
+                else if (seen_null) {
+                    need = -1;
+                    break;
+                }
+            }
+        }
 	DESTROY_ESTACK(stack);
 	return need;
     }
@@ -2224,6 +2241,16 @@ L_Again:   /* Restart with sublist, old listend was pushed on stack */
 		if (is_small(obj)) { /* Always small */
 		    for(;;) {
 			Uint x = unsigned_val(obj);
+                        /*
+                         * Do not allow null in
+                         * the middle of filenames
+                         */
+                        if (x == 0)
+                            seen_null = 1;
+                        else if (seen_null) {
+                            DESTROY_ESTACK(stack);
+                            return ((Sint) -1);
+                        }
 			switch (encoding) {
 			case ERL_FILENAME_LATIN1:
 			    if (x > 255) {
@@ -2497,6 +2524,38 @@ void erts_copy_utf8_to_utf16_little(byte *target, byte *bytes, int num_chars)
 }
 
 /*
+ * *** Requirements on Raw Filename Format ***
+ *
+ * These requirements are due to the 'filename' module
+ * in stdlib. This since it is documented that it
+ * should be able to operate on raw filenames as well
+ * as ordinary filenames.
+ *
+ * A raw filename *must* be a byte sequence where:
+ * 1. Codepoints 0-127 (7-bit ascii) *must* be encoded
+ *    as a byte with the corresponding value. That is,
+ *    the most significant bit in the byte encoding the
+ *    codepoint is never set.
+ * 2. Codepoints greater than 127 *must* be encoded
+ *    with the most significant bit set in *every* byte
+ *    encoding it.
+ *
+ * Latin1 and UTF-8 meet these requirements while
+ * UTF-16 and UTF-32 don't.
+ *
+ * On Windows filenames are natively stored as malformed
+ * UTF-16LE (lonely surrogates may appear). A more correct
+ * description than UTF-16 would be an array of 16-bit
+ * words... In order to meet the requirements of the
+ * raw file format we convert the malformed UTF-16LE to
+ * malformed UTF-8 which meet the requirements.
+ *
+ * Note that these requirements are today only OTP
+ * internal (erts-stdlib internal) requirements that
+ * could be changed.
+ */
+
+/*
  * This internal bif converts a filename to whatever format is suitable for the file driver
  * It also adds zero termination so that prim_file needn't bother with the character encoding
  * of the file driver 
@@ -2507,6 +2566,12 @@ BIF_RETTYPE prim_file_internal_name2native_1(BIF_ALIST_1)
     Sint need;
     Eterm bin_term;
     byte* bin_p;
+
+    /*
+     * See comment on "Requirements on Raw Filename Format"
+     * above.
+     */
+
     /* Prim file explicitly does not allow atoms, although we could 
        very well cope with it. Instead of letting 'file' handle them,
        it would probably be more efficient to handle them here. Subject to 
@@ -2515,6 +2580,7 @@ BIF_RETTYPE prim_file_internal_name2native_1(BIF_ALIST_1)
 	BIF_ERROR(BIF_P,BADARG);
     }
     if (is_binary(BIF_ARG_1)) {
+        int seen_null = 0;
 	byte *temp_alloc = NULL;
 	byte *bytes;
 	byte *err_pos;
@@ -2524,10 +2590,18 @@ BIF_RETTYPE prim_file_internal_name2native_1(BIF_ALIST_1)
 	size = binary_size(BIF_ARG_1);
 	bytes = erts_get_aligned_binary_bytes(BIF_ARG_1, &temp_alloc);
 	if (encoding != ERL_FILENAME_WIN_WCHAR) {
+            Uint i;
 	    /*Add 0 termination only*/
 	    bin_term = new_binary(BIF_P, NULL, size+1);
 	    bin_p = binary_bytes(bin_term);
-	    memcpy(bin_p,bytes,size);
+            for (i = 0; i < size; i++) {
+                /* Don't allow null in the middle of filenames... */
+                if (bytes[i] == 0)
+                    seen_null = 1;
+                else if (seen_null)
+                    goto bin_name_error;
+                bin_p[i] = bytes[i];
+            }
 	    bin_p[size]=0;
 	    erts_free_aligned_binary_bytes(temp_alloc);
 	    BIF_RET(bin_term);
@@ -2541,6 +2615,11 @@ BIF_RETTYPE prim_file_internal_name2native_1(BIF_ALIST_1)
 	    bin_term = new_binary(BIF_P, 0, (size+1)*2);
 	    bin_p = binary_bytes(bin_term);
 	    while (size--) {
+                /* Don't allow null in the middle of filenames... */
+                if (*bytes == 0)
+                    seen_null = 1;
+                else if (seen_null)
+                    goto bin_name_error;
 		*bin_p++ = *bytes++;
 		*bin_p++ = 0;
 	    }
@@ -2558,11 +2637,14 @@ BIF_RETTYPE prim_file_internal_name2native_1(BIF_ALIST_1)
 	bin_p[num_chars*2+1] = 0;
 	erts_free_aligned_binary_bytes(temp_alloc);
 	BIF_RET(bin_term);
+    bin_name_error:
+        erts_free_aligned_binary_bytes(temp_alloc);
+        BIF_ERROR(BIF_P,BADARG);
     } /* binary */   
 	    
 
-    if ((need = erts_native_filename_need(BIF_ARG_1,encoding)) < 0) {
-	BIF_ERROR(BIF_P,BADARG);
+    if ((need = erts_native_filename_need(BIF_ARG_1, encoding)) < 0) {
+        BIF_ERROR(BIF_P,BADARG);
     }
     if (encoding == ERL_FILENAME_WIN_WCHAR) {
 	need += 2;
@@ -2596,6 +2678,11 @@ BIF_RETTYPE prim_file_internal_native2name_1(BIF_ALIST_1)
     Eterm ret;
     int mac = 0;
 
+    /*
+     * See comment on "Requirements on Raw Filename Format"
+     * above.
+     */
+
     if (is_not_binary(BIF_ARG_1)) {
 	BIF_ERROR(BIF_P,BADARG);
     }
diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h
index f2d0af64df..76980b5871 100644
--- a/erts/emulator/beam/erl_vm.h
+++ b/erts/emulator/beam/erl_vm.h
@@ -46,8 +46,6 @@
  */
 #define ERTS_X_REGS_ALLOCATED (MAX_REG+3)
 
-#define INPUT_REDUCTIONS (2 * CONTEXT_REDS)
-
 #define H_DEFAULT_SIZE  233        /* default (heap + stack) min size */
 #define VH_DEFAULT_SIZE  32768     /* default virtual (bin) heap min size (words) */
 #define H_DEFAULT_MAX_SIZE 0       /* default max heap size is off */
@@ -159,6 +157,7 @@ typedef struct op_entry {
    Uint32 mask[3];		/* Signature mask. */
    unsigned involves_r;		/* Needs special attention when matching. */
    int sz;			/* Number of loaded words. */
+   int adjust;                  /* Adjustment for start of instruction. */
    char* pack;			/* Instructions for packing engine. */
    char* sign;			/* Signature string. */
 } OpEntry;
@@ -201,11 +200,24 @@ extern int erts_pd_initial_size;/* Initial Process dictionary table size */
 
 #include "erl_term.h"
 
-#ifdef NO_JUMP_TABLE 
-#define BeamOp(Op) (Op)
+#if defined(NO_JUMP_TABLE)
+#  define BeamOpsAreInitialized() (1)
+#  define BeamOpCodeAddr(OpCode) ((BeamInstr)(OpCode))
 #else
 extern void** beam_ops;
-#define BeamOp(Op) beam_ops[(Op)]
+#  define BeamOpsAreInitialized() (beam_ops != 0)
+#  define BeamOpCodeAddr(OpCode) ((BeamInstr)beam_ops[(OpCode)])
 #endif
 
+#if defined(ARCH_64) && defined(CODE_MODEL_SMALL)
+#  define BeamCodeAddr(InstrWord) ((BeamInstr)(Uint32)(InstrWord))
+#  define BeamSetCodeAddr(InstrWord, Addr) (((InstrWord) & ~((1ull << 32)-1)) | (Addr))
+#  define BeamExtraData(InstrWord) ((InstrWord) >> 32)
+#else
+#  define BeamCodeAddr(InstrWord) ((BeamInstr)(InstrWord))
+#  define BeamSetCodeAddr(InstrWord, Addr) (Addr)
+#endif
+
+#define BeamIsOpCode(InstrWord, OpCode) (BeamCodeAddr(InstrWord) == BeamOpCodeAddr(OpCode))
+
 #endif	/* __ERL_VM_H__ */
diff --git a/erts/emulator/beam/erlang_lttng.h b/erts/emulator/beam/erlang_lttng.h
index 4e869671f7..feb05f4f4c 100644
--- a/erts/emulator/beam/erlang_lttng.h
+++ b/erts/emulator/beam/erlang_lttng.h
@@ -159,21 +159,6 @@ TRACEPOINT_EVENT(
 
 TRACEPOINT_EVENT(
     org_erlang_otp,
-    driver_event,
-    TP_ARGS(
-        char*, pid,
-        char*, port,
-        char*, driver
-    ),
-    TP_FIELDS(
-        ctf_string(pid, pid)
-        ctf_string(port, port)
-        ctf_string(driver, driver)
-    )
-)
-
-TRACEPOINT_EVENT(
-    org_erlang_otp,
     driver_timeout,
     TP_ARGS(
         char*, pid,
diff --git a/erts/emulator/beam/export.c b/erts/emulator/beam/export.c
index c81503f722..946ffeffb8 100644
--- a/erts/emulator/beam/export.c
+++ b/erts/emulator/beam/export.c
@@ -48,7 +48,6 @@ static erts_atomic_t total_entries_bytes;
  */
 erts_mtx_t export_staging_lock;
 
-extern BeamInstr* em_call_error_handler;
 extern BeamInstr* em_call_traced_function;
 
 struct export_entry
@@ -130,7 +129,10 @@ export_alloc(struct export_entry* tmpl_e)
 	obj->info.mfa.module = tmpl->info.mfa.module;
 	obj->info.mfa.function = tmpl->info.mfa.function;
 	obj->info.mfa.arity = tmpl->info.mfa.arity;
-	obj->beam[0] = (BeamInstr) em_call_error_handler;
+        obj->beam[0] = 0;
+        if (BeamOpsAreInitialized()) {
+            obj->beam[0] = BeamOpCodeAddr(op_call_error_handler);
+        }
 	obj->beam[1] = 0;
 
 	for (ix=0; ix<ERTS_NUM_CODE_IX; ix++) {
@@ -267,7 +269,7 @@ erts_find_function(Eterm m, Eterm f, unsigned int a, ErtsCodeIndex code_ix)
     ee = hash_get(&export_tables[code_ix].htable, init_template(&templ, m, f, a));
     if (ee == NULL ||
 	(ee->ep->addressv[code_ix] == ee->ep->beam &&
-	 ee->ep->beam[0] != (BeamInstr) BeamOp(op_i_generic_breakpoint))) {
+	 ! BeamIsOpCode(ee->ep->beam[0], op_i_generic_breakpoint))) {
 	return NULL;
     }
     return ee->ep;
diff --git a/erts/emulator/beam/export.h b/erts/emulator/beam/export.h
index be6cce07bf..194e514b12 100644
--- a/erts/emulator/beam/export.h
+++ b/erts/emulator/beam/export.h
@@ -73,7 +73,7 @@ extern erts_mtx_t export_staging_lock;
 #include "beam_load.h" /* For em_* extern declarations */ 
 #define ExportIsBuiltIn(EntryPtr) 			\
 (((EntryPtr)->addressv[erts_active_code_ix()] == (EntryPtr)->beam) && \
- ((EntryPtr)->beam[0] == (BeamInstr) em_apply_bif))
+ (BeamIsOpCode((EntryPtr)->beam[0], op_apply_bif)))
 
 #if ERTS_GLB_INLINE_INCL_FUNC_DEF
 
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c
index 0874be7250..970158933f 100644
--- a/erts/emulator/beam/external.c
+++ b/erts/emulator/beam/external.c
@@ -616,7 +616,7 @@ erts_make_dist_ext_copy(ErtsDistExternal *edep, Uint xsize)
     sys_memcpy((void *) ep, (void *) edep, dist_ext_sz);
     ep += dist_ext_sz;
     if (new_edep->dep)
-	erts_refc_inc(&new_edep->dep->refc, 1);
+        erts_ref_dist_entry(new_edep->dep);
     new_edep->extp = ep;
     new_edep->ext_endp = ep + ext_sz;
     new_edep->heap_size = -1;
@@ -629,7 +629,8 @@ erts_prepare_dist_ext(ErtsDistExternal *edep,
 		      byte *ext,
 		      Uint size,
 		      DistEntry *dep,
-		      ErtsAtomCache *cache)
+		      ErtsAtomCache *cache,
+                      Uint32 *connection_id)
 {
 #undef ERTS_EXT_FAIL
 #undef ERTS_EXT_HDR_FAIL
@@ -650,33 +651,36 @@ erts_prepare_dist_ext(ErtsDistExternal *edep,
     if (size < 2)
 	ERTS_EXT_FAIL;
 
+    if (!dep)
+        ERTS_INTERNAL_ERROR("Invalid use");
+
     if (ep[0] != VERSION_MAGIC) {
 	erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
-	if (dep)
-	    erts_dsprintf(dsbufp,
-			  "** Got message from incompatible erlang on "
-			  "channel %d\n",
-			  dist_entry_channel_no(dep));
-	else
-	    erts_dsprintf(dsbufp,
-			  "** Attempt to convert old incompatible "
-			  "binary %d\n",
-			  *ep);
+        erts_dsprintf(dsbufp,
+                      "** Got message from incompatible erlang on "
+                      "channel %d\n",
+                      dist_entry_channel_no(dep));
 	erts_send_error_to_logger_nogl(dsbufp);
 	ERTS_EXT_FAIL;
     }
 
     edep->flags = 0;
     edep->dep = dep;
-    if (dep) {
-	erts_de_rlock(dep);
-	if (dep->flags & DFLAG_DIST_HDR_ATOM_CACHE)
-	    edep->flags |= ERTS_DIST_EXT_DFLAG_HDR;
-	    
-	edep->flags |= (dep->connection_id & ERTS_DIST_EXT_CON_ID_MASK);
-	erts_de_runlock(dep);
+
+    erts_de_rlock(dep);
+
+    if ((dep->status & (ERTS_DE_SFLG_EXITING|ERTS_DE_SFLG_CONNECTED))
+        != ERTS_DE_SFLG_CONNECTED) {
+        erts_de_runlock(dep);
+        return ERTS_PREP_DIST_EXT_CLOSED;
     }
 
+    if (dep->flags & DFLAG_DIST_HDR_ATOM_CACHE)
+        edep->flags |= ERTS_DIST_EXT_DFLAG_HDR;
+
+    *connection_id = dep->connection_id;
+    edep->flags |= (dep->connection_id & ERTS_DIST_EXT_CON_ID_MASK);
+
     if (ep[1] != DIST_HEADER) {
 	if (edep->flags & ERTS_DIST_EXT_DFLAG_HDR)
 	    ERTS_EXT_HDR_FAIL;
@@ -835,14 +839,15 @@ erts_prepare_dist_ext(ErtsDistExternal *edep,
 	ERTS_EXT_FAIL;
 #endif
 
-    return 0;
+    erts_de_runlock(dep);
+
+    return ERTS_PREP_DIST_EXT_SUCCESS;
 
 #undef CHKSIZE
 #undef ERTS_EXT_FAIL
 #undef ERTS_EXT_HDR_FAIL
 
- bad_hdr:
-    if (dep) {
+ bad_hdr: {
 	erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
 	erts_dsprintf(dsbufp,
 		      "%T got a corrupted distribution header from %T "
@@ -855,10 +860,11 @@ erts_prepare_dist_ext(ErtsDistExternal *edep,
 	erts_dsprintf(dsbufp, ">>");
 	erts_send_warning_to_logger_nogl(dsbufp);
     }
- fail:
-    if (dep)
-	erts_kill_dist_connection(dep, dep->connection_id);
-    return -1;
+ fail: {
+	erts_de_runlock(dep);
+	erts_kill_dist_connection(dep, *connection_id);
+    }
+    return ERTS_PREP_DIST_EXT_FAILED;
 }
 
 static void
@@ -1923,7 +1929,7 @@ static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint fla
 		}
 
 		result_bin = erts_bin_nrml_alloc(size);
-		result_bin->orig_bytes[0] = VERSION_MAGIC;
+		result_bin->orig_bytes[0] = (byte)VERSION_MAGIC;
 		/* Next state immediately, no need to export context */
 		context->state = TTBEncode;
 		context->s.ec.flags = flags;
@@ -1981,7 +1987,7 @@ static Eterm erts_term_to_binary_int(Process* p, Eterm Term, int level, Uint fla
 		context->s.cc.result_bin = result_bin;
 
 		result_bin = erts_bin_nrml_alloc(real_size);
-		result_bin->orig_bytes[0] = VERSION_MAGIC;
+		result_bin->orig_bytes[0] = (byte) VERSION_MAGIC;
 
 		context->s.cc.destination_bin = result_bin;
 		context->s.cc.dest_len = 0;
@@ -3109,7 +3115,7 @@ dec_term(ErtsDistExternal *edep,
 #if defined(ARCH_64)
 		*objp = make_small(sn);
 #else
-		if (MY_IS_SSMALL(sn)) {
+		if (IS_SSMALL(sn)) {
 		    *objp = make_small(sn);
 		} else {
 		    *objp = small_to_big(sn, hp);
diff --git a/erts/emulator/beam/external.h b/erts/emulator/beam/external.h
index f00426cc16..3c61d013da 100644
--- a/erts/emulator/beam/external.h
+++ b/erts/emulator/beam/external.h
@@ -185,8 +185,13 @@ ERTS_GLB_INLINE void *erts_dist_ext_trailer(ErtsDistExternal *);
 ErtsDistExternal *erts_make_dist_ext_copy(ErtsDistExternal *, Uint);
 void *erts_dist_ext_trailer(ErtsDistExternal *);
 void erts_destroy_dist_ext_copy(ErtsDistExternal *);
+
+#define ERTS_PREP_DIST_EXT_FAILED       (-1)
+#define ERTS_PREP_DIST_EXT_SUCCESS      (0)
+#define ERTS_PREP_DIST_EXT_CLOSED       (1)
+
 int erts_prepare_dist_ext(ErtsDistExternal *, byte *, Uint,
-			  DistEntry *, ErtsAtomCache *);
+			  DistEntry *, ErtsAtomCache *, Uint32 *);
 Sint erts_decode_dist_ext_size(ErtsDistExternal *);
 Eterm erts_decode_dist_ext(ErtsHeapFactory* factory, ErtsDistExternal *);
 
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 27a6202bb7..3dd3a60939 100644
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -128,10 +128,8 @@ extern Eterm erts_nif_call_function(Process *p, Process *tracee,
                                     struct enif_func_t *,
                                     int argc, Eterm *argv);
 
-#ifdef ERTS_DIRTY_SCHEDULERS
 int erts_call_dirty_nif(ErtsSchedulerData *esdp, Process *c_p,
 			BeamInstr *I, Eterm *reg);
-#endif /* ERTS_DIRTY_SCHEDULERS */
 
 
 /* Driver handle (wrapper for old plain handle) */
@@ -224,8 +222,6 @@ struct erts_driver_t_ {
 			 char *buf, ErlDrvSizeT len,
 			 char **rbuf, ErlDrvSizeT rlen, /* Might be NULL */
 			 unsigned int *flags);
-    void (*event)(ErlDrvData drv_data, ErlDrvEvent event,
-		  ErlDrvEventData event_data);
     void (*ready_input)(ErlDrvData drv_data, ErlDrvEvent event); 
     void (*ready_output)(ErlDrvData drv_data, ErlDrvEvent event);  
     void (*timeout)(ErlDrvData drv_data);
@@ -911,9 +907,7 @@ extern erts_atomic_t erts_copy_literal_area__;
 #define ERTS_COPY_LITERAL_AREA()					\
     ((ErtsLiteralArea *) erts_atomic_read_nob(&erts_copy_literal_area__))
 extern Process *erts_literal_area_collector;
-#ifdef ERTS_DIRTY_SCHEDULERS
 extern Process *erts_dirty_process_code_checker;
-#endif
 
 extern Process *erts_code_purger;
 
@@ -953,6 +947,8 @@ void erts_update_ranges(BeamInstr* code, Uint size);
 void erts_remove_from_ranges(BeamInstr* code);
 UWord erts_ranges_sz(void);
 void erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info);
+ErtsLiteralArea** erts_dump_lit_areas;
+Uint erts_dump_num_lit_areas;
 
 /* break.c */
 void init_break_handler(void);
@@ -1107,7 +1103,6 @@ void erts_save_stacktrace(Process* p, struct StackTrace* s, int depth);
 typedef struct {
     Eterm delay_time;
     int context_reds;
-    int input_reds;
 } ErtsModifiedTimings;
 
 extern Export *erts_delay_trap;
@@ -1386,7 +1381,7 @@ Uint erts_current_reductions(Process* current, Process *p);
 
 int erts_print_system_version(fmtfn_t to, void *arg, Process *c_p);
 
-int erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* reg);
+int erts_hibernate(Process* c_p, Eterm* reg);
 
 ERTS_GLB_FORCE_INLINE int erts_is_literal(Eterm tptr, Eterm *ptr);
 
diff --git a/erts/emulator/beam/instrs.tab b/erts/emulator/beam/instrs.tab
index 1af01e53bd..c17d1a8f69 100644
--- a/erts/emulator/beam/instrs.tab
+++ b/erts/emulator/beam/instrs.tab
@@ -78,7 +78,14 @@ move_deallocate_return(Src, Deallocate) {
 
 // Call instructions
 
-DISPATCH(CallDest) {
+DISPATCH_REL(CallDest) {
+    //| -no_next
+    $SET_I_REL($CallDest);
+    DTRACE_LOCAL_CALL(c_p, erts_code_to_codemfa(I));
+    Dispatch();
+}
+
+DISPATCH_ABS(CallDest) {
     //| -no_next
     SET_I((BeamInstr *) $CallDest);
     DTRACE_LOCAL_CALL(c_p, erts_code_to_codemfa(I));
@@ -87,18 +94,18 @@ DISPATCH(CallDest) {
 
 i_call(CallDest) {
     SET_CP(c_p, $NEXT_INSTRUCTION);
-    $DISPATCH($CallDest);
+    $DISPATCH_REL($CallDest);
 }
 
 move_call(Src, CallDest) {
     x(0) = $Src;
     SET_CP(c_p, $NEXT_INSTRUCTION);
-    $DISPATCH($CallDest);
+    $DISPATCH_REL($CallDest);
 }
 
 i_call_last(CallDest, Deallocate) {
     $deallocate($Deallocate);
-    $DISPATCH($CallDest);
+    $DISPATCH_REL($CallDest);
 }
 
 move_call_last(Src, CallDest, Deallocate) {
@@ -107,18 +114,14 @@ move_call_last(Src, CallDest, Deallocate) {
 }
 
 i_call_only(CallDest) {
-    $DISPATCH($CallDest);
+    $DISPATCH_REL($CallDest);
 }
 
-i_move_call_only(CallDest, Src) {
+move_call_only(Src, CallDest) {
     x(0) = $Src;
     $i_call_only($CallDest);
 }
 
-move_call_only(Src, CallDest) {
-    $i_move_call_only($CallDest, $Src);
-}
-
 DISPATCHX(Dest) {
     //| -no_next
     DTRACE_GLOBAL_CALL_FROM_EXPORT(c_p, $Dest);
@@ -156,10 +159,10 @@ i_move_call_ext_last(Dest, StackOffset, Src) {
     $i_call_ext_last($Dest, $StackOffset);
 }
 
-APPLY(I, Deallocate) {
+APPLY(I, Deallocate, Next) {
     //| -no_next
     HEAVY_SWAPOUT;
-    next = apply(c_p, r(0), x(1), x(2), reg, $I, $Deallocate);
+    $Next = apply(c_p, reg, $I, $Deallocate);
     HEAVY_SWAPIN;
 }
 
@@ -170,59 +173,63 @@ HANDLE_APPLY_ERROR() {
 
 i_apply() {
     BeamInstr *next;
-    $APPLY(NULL, 0);
-    if (next != NULL) {
-        $i_call(next);
+    $APPLY(NULL, 0, next);
+    if (ERTS_LIKELY(next != NULL)) {
+        SET_CP(c_p, $NEXT_INSTRUCTION);
+        $DISPATCH_ABS(next);
     }
     $HANDLE_APPLY_ERROR();
 }
 
 i_apply_last(Deallocate) {
     BeamInstr *next;
-    $APPLY(I, $Deallocate);
-    if (next != NULL) {
-        $i_call_last(next, $Deallocate);
+    $APPLY(I, $Deallocate, next);
+    if (ERTS_LIKELY(next != NULL)) {
+        $deallocate($Deallocate);
+        $DISPATCH_ABS(next);
     }
     $HANDLE_APPLY_ERROR();
 }
 
 i_apply_only() {
     BeamInstr *next;
-    $APPLY(I, 0);
-    if (next != NULL) {
-        $i_call_only(next);
+    $APPLY(I, 0, next);
+    if (ERTS_LIKELY(next != NULL)) {
+        $DISPATCH_ABS(next);
     }
     $HANDLE_APPLY_ERROR();
 }
 
-FIXED_APPLY(Arity, I, Deallocate) {
+FIXED_APPLY(Arity, I, Deallocate, Next) {
     //| -no_next
     HEAVY_SWAPOUT;
-    next = fixed_apply(c_p, reg, $Arity, $I, $Deallocate);
+    $Next = fixed_apply(c_p, reg, $Arity, $I, $Deallocate);
     HEAVY_SWAPIN;
 }
 
 apply(Arity) {
     BeamInstr *next;
-    $FIXED_APPLY($Arity, NULL, 0);
-    if (next != NULL) {
-        $i_call(next);
+    $FIXED_APPLY($Arity, NULL, 0, next);
+    if (ERTS_LIKELY(next != NULL)) {
+        SET_CP(c_p, $NEXT_INSTRUCTION);
+        $DISPATCH_ABS(next);
     }
     $HANDLE_APPLY_ERROR();
 }
 
 apply_last(Arity, Deallocate) {
     BeamInstr *next;
-    $FIXED_APPLY($Arity, I, $Deallocate);
-    if (next != NULL) {
-        $i_call_last(next, $Deallocate);
+    $FIXED_APPLY($Arity, I, $Deallocate, next);
+    if (ERTS_LIKELY(next != NULL)) {
+        $deallocate($Deallocate);
+        $DISPATCH_ABS(next);
     }
     $HANDLE_APPLY_ERROR();
 }
 
-APPLY_FUN() {
+APPLY_FUN(Next) {
     HEAVY_SWAPOUT;
-    next = apply_fun(c_p, r(0), x(1), reg);
+    $Next = apply_fun(c_p, r(0), x(1), reg);
     HEAVY_SWAPIN;
 }
 
@@ -237,8 +244,8 @@ DISPATCH_FUN(I) {
 
 i_apply_fun() {
     BeamInstr *next;
-    $APPLY_FUN();
-    if (next != NULL) {
+    $APPLY_FUN(next);
+    if (ERTS_LIKELY(next != NULL)) {
         SET_CP(c_p, $NEXT_INSTRUCTION);
         $DISPATCH_FUN(next);
     }
@@ -247,8 +254,8 @@ i_apply_fun() {
 
 i_apply_fun_last(Deallocate) {
     BeamInstr *next;
-    $APPLY_FUN();
-    if (next != NULL) {
+    $APPLY_FUN(next);
+    if (ERTS_LIKELY(next != NULL)) {
         $deallocate($Deallocate);
         $DISPATCH_FUN(next);
     }
@@ -257,24 +264,24 @@ i_apply_fun_last(Deallocate) {
 
 i_apply_fun_only() {
     BeamInstr *next;
-    $APPLY_FUN();
-    if (next != NULL) {
+    $APPLY_FUN(next);
+    if (ERTS_LIKELY(next != NULL)) {
         $DISPATCH_FUN(next);
     }
     $HANDLE_APPLY_FUN_ERROR();
 }
 
-CALL_FUN(Fun) {
+CALL_FUN(Fun, Next) {
     //| -no_next
     HEAVY_SWAPOUT;
-    next = call_fun(c_p, $Fun, reg, THE_NON_VALUE);
+    $Next = call_fun(c_p, $Fun, reg, THE_NON_VALUE);
     HEAVY_SWAPIN;
 }
 
 i_call_fun(Fun) {
     BeamInstr *next;
-    $CALL_FUN($Fun);
-    if (next != NULL) {
+    $CALL_FUN($Fun, next);
+    if (ERTS_LIKELY(next != NULL)) {
         SET_CP(c_p, $NEXT_INSTRUCTION);
         $DISPATCH_FUN(next);
     }
@@ -283,8 +290,8 @@ i_call_fun(Fun) {
 
 i_call_fun_last(Fun, Deallocate) {
     BeamInstr *next;
-    $CALL_FUN($Fun);
-    if (next != NULL) {
+    $CALL_FUN($Fun, next);
+    if (ERTS_LIKELY(next != NULL)) {
         $deallocate($Deallocate);
         $DISPATCH_FUN(next);
     }
@@ -368,7 +375,6 @@ i_element := element_group.fetch.execute;
 
 
 element_group.head() {
-    Eterm element_index;
     Eterm element_tuple;
 }
 
@@ -377,8 +383,8 @@ element_group.fetch(Src) {
 }
 
 element_group.execute(Fail, Index, Dst) {
-    element_index = $Index;
-    if (is_small(element_index) && is_tuple(element_tuple)) {
+    Eterm element_index = $Index;
+    if (ERTS_LIKELY(is_small(element_index) && is_tuple(element_tuple))) {
         Eterm* tp = tuple_val(element_tuple);
 
         if ((signed_val(element_index) >= 1) &&
@@ -402,7 +408,7 @@ fast_element_group.fetch(Src) {
 }
 
 fast_element_group.execute(Fail, Index, Dst) {
-    if (is_tuple(fast_element_tuple)) {
+    if (ERTS_LIKELY(is_tuple(fast_element_tuple))) {
         Eterm* tp = tuple_val(fast_element_tuple);
         Eterm pos = $Index;	/* Untagged integer >= 1 */
         if (pos <= arityval(*tp)) {
@@ -564,6 +570,7 @@ i_put_tuple.fill(Arity) {
         }
     } while (--arity != 0);
     HTOP = hp;
+    ASSERT(VALID_INSTR(* (Eterm *)I));
     Goto(*I);
 }
 
@@ -735,9 +742,10 @@ is_reference(Fail, Src) {
 }
 
 is_tagged_tuple(Fail, Src, Arityval, Tag) {
-    if (!(BEAM_IS_TUPLE($Src) &&
-          (tuple_val($Src))[0] == $Arityval &&
-          (tuple_val($Src))[1] == $Tag)) {
+    Eterm term = $Src;
+    if (!(BEAM_IS_TUPLE(term) &&
+          (tuple_val(term))[0] == $Arityval &&
+          (tuple_val(term))[1] == $Tag)) {
         $FAIL($Fail);
     }
 }
@@ -749,7 +757,8 @@ is_tuple(Fail, Src) {
 }
 
 is_tuple_of_arity(Fail, Src, Arityval) {
-    if (!(BEAM_IS_TUPLE($Src) && *tuple_val($Src) == $Arityval)) {
+    Eterm term = $Src;
+    if (!(BEAM_IS_TUPLE(term) && *tuple_val(term) == $Arityval)) {
         $FAIL($Fail);
     }
 }
@@ -779,7 +788,8 @@ is_eq_exact(Fail, X, Y) {
 }
 
 i_is_eq_exact_literal(Fail, Src, Literal) {
-    if (!eq($Src, $Literal)) {
+    Eterm src = $Src;
+    if (is_immed(src) || !eq(src, $Literal)) {
         $FAIL($Fail);
     }
 }
@@ -791,7 +801,8 @@ is_ne_exact(Fail, X, Y) {
 }
 
 i_is_ne_exact_literal(Fail, Src, Literal) {
-    if (eq($Src, $Literal)) {
+    Eterm src = $Src;
+    if (!is_immed(src) && eq(src, $Literal)) {
         $FAIL($Fail);
     }
 }
@@ -821,12 +832,14 @@ badmatch(Src) {
     c_p->fvalue = $Src;
     c_p->freason = BADMATCH;
     goto find_func_info;
+    //| -no_next;
 }
 
 case_end(Src) {
     c_p->fvalue = $Src;
     c_p->freason = EXC_CASE_CLAUSE;
     goto find_func_info;
+    //| -no_next;
 }
 
 if_end() {
@@ -846,8 +859,7 @@ catch(Y, Fail) {
 }
 
 catch_end(Y) {
-    c_p->catches--;
-    make_blank($Y);
+    $try_end($Y);
     if (is_non_value(r(0))) {
         c_p->fvalue = NIL;
         if (x(1) == am_throw) {
@@ -877,12 +889,15 @@ catch_end(Y) {
 try_end(Y) {
     c_p->catches--;
     make_blank($Y);
-    if (is_non_value(r(0))) {
-        c_p->fvalue = NIL;
-        r(0) = x(1);
-        x(1) = x(2);
-        x(2) = x(3);
-    }
+}
+
+try_case(Y) {
+    $try_end($Y);
+    ASSERT(is_non_value(r(0)));
+    c_p->fvalue = NIL;
+    r(0) = x(1);
+    x(1) = x(2);
+    x(2) = x(3);
 }
 
 try_case_end(Src) {
@@ -906,5 +921,6 @@ i_raise() {
         c_p->freason = PRIMARY_EXCEPTION(s->freason);
     }
     goto find_func_info;
+    //| -no_next
 }
 
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index c8925e159e..85013af3ad 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -52,6 +52,7 @@
 #include "erl_bif_unique.h"
 #include "erl_hl_timer.h"
 #include "erl_time.h"
+#include "erl_io_queue.h"
 
 extern ErlDrvEntry fd_driver_entry;
 extern ErlDrvEntry vanilla_driver_entry;
@@ -102,7 +103,7 @@ static void driver_monitor_unlock_pdl(Port *p);
 #define ERL_SMALL_IO_BIN_LIMIT (4*ERL_ONHEAP_BIN_LIMIT)
 #define SMALL_WRITE_VEC  16
 
-static ERTS_INLINE ErlIOQueue*
+static ERTS_INLINE ErlPortIOQueue*
 drvport2ioq(ErlDrvPort drvport)
 {
     Port *prt = erts_thr_drvport2port(drvport, 0);
@@ -117,11 +118,11 @@ is_port_ioq_empty(Port *pp)
     int res;
     ERTS_LC_ASSERT(erts_lc_is_port_locked(pp));
     if (!pp->port_data_lock)
-	res = (pp->ioq.size == 0);
+	res = (erts_ioq_size(&pp->ioq) == 0);
     else {
 	ErlDrvPDL pdl = pp->port_data_lock;
 	erts_mtx_lock(&pdl->mtx);
-	res = (pp->ioq.size == 0);
+	res = (erts_ioq_size(&pp->ioq) == 0);
 	erts_mtx_unlock(&pdl->mtx);
     }
     return res;
@@ -136,14 +137,14 @@ erts_is_port_ioq_empty(Port *pp)
 Uint
 erts_port_ioq_size(Port *pp)
 {
-    int res;
+    ErlDrvSizeT res;
     ERTS_LC_ASSERT(erts_lc_is_port_locked(pp));
     if (!pp->port_data_lock)
-	res = pp->ioq.size;
+	res = erts_ioq_size(&pp->ioq);
     else {
 	ErlDrvPDL pdl = pp->port_data_lock;
 	erts_mtx_lock(&pdl->mtx);
-	res = pp->ioq.size;
+	res = erts_ioq_size(&pp->ioq);
 	erts_mtx_unlock(&pdl->mtx);
     }
     return (Uint) res;
@@ -473,41 +474,17 @@ erts_port_free(Port *prt)
 */
 static void initq(Port* prt)
 {
-    ErlIOQueue* q = &prt->ioq;
-
     ERTS_LC_ASSERT(!prt->port_data_lock);
-
-    q->size = 0;
-    q->v_head = q->v_tail = q->v_start = q->v_small;
-    q->v_end = q->v_small + SMALL_IO_QUEUE;
-    q->b_head = q->b_tail = q->b_start = q->b_small;
-    q->b_end = q->b_small + SMALL_IO_QUEUE;
+    erts_ioq_init(&prt->ioq, ERTS_ALC_T_IOQ, 1);
 }
 
 static void stopq(Port* prt)
 {
-    ErlIOQueue* q;
-    ErlDrvBinary** binp;
 
     if (prt->port_data_lock)
 	driver_pdl_lock(prt->port_data_lock);
 
-    q = &prt->ioq;
-    binp = q->b_head;
-
-    if (q->v_start != q->v_small)
-	erts_free(ERTS_ALC_T_IOQ, (void *) q->v_start);
-
-    while(binp < q->b_tail) {
-	if (*binp != NULL)
-	    driver_free_binary(*binp);
-	binp++;
-    }
-    if (q->b_start != q->b_small)
-	erts_free(ERTS_ALC_T_IOQ, (void *) q->b_start);
-    q->v_start = q->v_end = q->v_head = q->v_tail = NULL;
-    q->b_start = q->b_end = q->b_head = q->b_tail = NULL;
-    q->size = 0;
+    erts_ioq_clear(&prt->ioq);
 
     if (prt->port_data_lock) {
 	driver_pdl_unlock(prt->port_data_lock);
@@ -876,311 +853,6 @@ int erts_port_handle_xports(Port *prt)
     return reds;
 }
 
-/* Fills a possibly deep list of chars and binaries into vec
-** Small characters are first stored in the buffer buf of length ln
-** binaries found are copied and linked into msoh
-** Return  vector length on succsess,
-**        -1 on overflow
-**        -2 on type error
-*/
-
-#ifdef DEBUG
-#define MAX_SYSIOVEC_IOVLEN (1ull << (32 - 1))
-#else
-#define MAX_SYSIOVEC_IOVLEN (1ull << (sizeof(((SysIOVec*)0)->iov_len) * 8 - 1))
-#endif
-
-static ERTS_INLINE void
-io_list_to_vec_set_vec(SysIOVec **iov, ErlDrvBinary ***binv,
-                        ErlDrvBinary *bin, byte *ptr, Uint len,
-                        int *vlen)
-{
-    while (len > MAX_SYSIOVEC_IOVLEN) {
-        (*iov)->iov_base = ptr;
-        (*iov)->iov_len = MAX_SYSIOVEC_IOVLEN;
-        ptr += MAX_SYSIOVEC_IOVLEN;
-        len -= MAX_SYSIOVEC_IOVLEN;
-        (*iov)++;
-        (*vlen)++;
-        *(*binv)++ = bin;
-    }
-    (*iov)->iov_base = ptr;
-    (*iov)->iov_len = len;
-    *(*binv)++ = bin;
-    (*iov)++;
-    (*vlen)++;
-}
-
-static int
-io_list_to_vec(Eterm obj,	/* io-list */
-	       SysIOVec* iov,	/* io vector */
-	       ErlDrvBinary** binv, /* binary reference vector */
-	       ErlDrvBinary* cbin, /* binary to store characters */
-	       ErlDrvSizeT bin_limit)	/* small binaries limit */
-{
-    DECLARE_ESTACK(s);
-    Eterm* objp;
-    byte *buf  = (byte*)cbin->orig_bytes;
-    Uint len = cbin->orig_size;
-    Uint csize  = 0;
-    int vlen   = 0;
-    byte* cptr = buf;
-
-    goto L_jump_start;  /* avoid push */
-
-    while (!ESTACK_ISEMPTY(s)) {
-	obj = ESTACK_POP(s);
-    L_jump_start:
-	if (is_list(obj)) {
-	L_iter_list:
-	    objp = list_val(obj);
-	    obj = CAR(objp);
-	    if (is_byte(obj)) {
-		if (len == 0)
-		    goto L_overflow;
-		*buf++ = unsigned_val(obj);
-		csize++;
-		len--;
-	    } else if (is_binary(obj)) {
-		ESTACK_PUSH(s, CDR(objp));
-		goto handle_binary;
-	    } else if (is_list(obj)) {
-		ESTACK_PUSH(s, CDR(objp));
-		goto L_iter_list;    /* on head */
-	    } else if (!is_nil(obj)) {
-		goto L_type_error;
-	    }	    
-	    obj = CDR(objp);
-	    if (is_list(obj))
-		goto L_iter_list; /* on tail */
-	    else if (is_binary(obj)) {
-		goto handle_binary;
-	    } else if (!is_nil(obj)) {
-		goto L_type_error;
-	    }
-	} else if (is_binary(obj)) {
-	    Eterm real_bin;
-	    Uint offset;
-	    Eterm* bptr;
-	    ErlDrvSizeT size;
-	    int bitoffs;
-	    int bitsize;
-
-	handle_binary:
-	    size = binary_size(obj);
-	    ERTS_GET_REAL_BIN(obj, real_bin, offset, bitoffs, bitsize);
-	    ASSERT(bitsize == 0);
-	    bptr = binary_val(real_bin);
-	    if (*bptr == HEADER_PROC_BIN) {
-		ProcBin* pb = (ProcBin *) bptr;
-		if (bitoffs != 0) {
-		    if (len < size) {
-			goto L_overflow;
-		    }
-		    erts_copy_bits(pb->bytes+offset, bitoffs, 1,
-				   (byte *) buf, 0, 1, size*8);
-		    csize += size;
-		    buf += size;
-		    len -= size;
-		} else if (bin_limit && size < bin_limit) {
-		    if (len < size) {
-			goto L_overflow;
-		    }
-		    sys_memcpy(buf, pb->bytes+offset, size);
-		    csize += size;
-		    buf += size;
-		    len -= size;
-		} else {
-		    if (csize != 0) {
-                        io_list_to_vec_set_vec(&iov, &binv, cbin,
-                                               cptr, csize, &vlen);
-			cptr = buf;
-			csize = 0;
-		    }
-		    if (pb->flags) {
-			erts_emasculate_writable_binary(pb);
-		    }
-                    io_list_to_vec_set_vec(
-                        &iov, &binv, Binary2ErlDrvBinary(pb->val),
-                        pb->bytes+offset, size, &vlen);
-		}
-	    } else {
-		ErlHeapBin* hb = (ErlHeapBin *) bptr;
-		if (len < size) {
-		    goto L_overflow;
-		}
-		copy_binary_to_buffer(buf, 0,
-				      ((byte *) hb->data)+offset, bitoffs,
-				      8*size);
-		csize += size;
-		buf += size;
-		len -= size;
-	    }
-	} else if (!is_nil(obj)) {
-	    goto L_type_error;
-	}
-    }
-
-    if (csize != 0) {
-        io_list_to_vec_set_vec(&iov, &binv, cbin, cptr, csize, &vlen);
-    }
-
-    DESTROY_ESTACK(s);
-    return vlen;
-
- L_type_error:
-    DESTROY_ESTACK(s);
-    return -2;
-
- L_overflow:
-    DESTROY_ESTACK(s);
-    return -1;
-}
-
-#define IO_LIST_VEC_COUNT(obj)						\
-do {									\
-    Uint _size = binary_size(obj);					\
-    Eterm _real;							\
-    ERTS_DECLARE_DUMMY(Uint _offset);					\
-    int _bitoffs;							\
-    int _bitsize;							\
-    ERTS_GET_REAL_BIN(obj, _real, _offset, _bitoffs, _bitsize);		\
-    if (_bitsize != 0) goto L_type_error;				\
-    if (thing_subtag(*binary_val(_real)) == REFC_BINARY_SUBTAG &&	\
-	_bitoffs == 0) {						\
-	b_size += _size;                                                \
-        if (b_size < _size) goto L_overflow_error;			\
-	in_clist = 0;							\
-        v_size++;                                                       \
-        /* If iov_len is smaller then Uint we split the binary into*/   \
-        /* multiple smaller (2GB) elements in the iolist.*/             \
-	v_size += _size / MAX_SYSIOVEC_IOVLEN;                          \
-        if (_size >= ERL_SMALL_IO_BIN_LIMIT) {				\
-            p_in_clist = 0;						\
-            p_v_size++;							\
-        } else {							\
-            p_c_size += _size;						\
-            if (!p_in_clist) {						\
-                p_in_clist = 1;						\
-                p_v_size++;						\
-            }								\
-        }								\
-    } else {								\
-	c_size += _size;						\
-        if (c_size < _size) goto L_overflow_error;			\
-	if (!in_clist) {						\
-	    in_clist = 1;						\
-	    v_size++;							\
-	}								\
-	p_c_size += _size;						\
-	if (!p_in_clist) {						\
-	    p_in_clist = 1;						\
-	    p_v_size++;							\
-	}								\
-    }									\
-} while (0)
-
-
-/* 
- * Returns 0 if successful and a non-zero value otherwise.
- *
- * Return values through pointers:
- *    *vsize      - SysIOVec size needed for a writev
- *    *csize      - Number of bytes not in binary (in the common binary)
- *    *pvsize     - SysIOVec size needed if packing small binaries
- *    *pcsize     - Number of bytes in the common binary if packing
- *    *total_size - Total size of iolist in bytes
- */
-
-static int 
-io_list_vec_len(Eterm obj, int* vsize, Uint* csize,
-		Uint* pvsize, Uint* pcsize,
-		ErlDrvSizeT* total_size)
-{
-    DECLARE_ESTACK(s);
-    Eterm* objp;
-    Uint v_size = 0;
-    Uint c_size = 0;
-    Uint b_size = 0;
-    Uint in_clist = 0;
-    Uint p_v_size = 0;
-    Uint p_c_size = 0;
-    Uint p_in_clist = 0;
-    Uint total;
-
-    goto L_jump_start;  /* avoid a push */
-
-    while (!ESTACK_ISEMPTY(s)) {
-	obj = ESTACK_POP(s);
-    L_jump_start:
-	if (is_list(obj)) {
-	L_iter_list:
-	    objp = list_val(obj);
-	    obj = CAR(objp);
-
-	    if (is_byte(obj)) {
-		c_size++;
-		if (c_size == 0) {
-		    goto L_overflow_error;
-		}
-		if (!in_clist) {
-		    in_clist = 1;
-		    v_size++;
-		}
-		p_c_size++;
-		if (!p_in_clist) {
-		    p_in_clist = 1;
-		    p_v_size++;
-		}
-	    }
-	    else if (is_binary(obj)) {
-		IO_LIST_VEC_COUNT(obj);
-	    }
-	    else if (is_list(obj)) {
-		ESTACK_PUSH(s, CDR(objp));
-		goto L_iter_list;   /* on head */
-	    }
-	    else if (!is_nil(obj)) {
-		goto L_type_error;
-	    }
-
-	    obj = CDR(objp);
-	    if (is_list(obj))
-		goto L_iter_list;   /* on tail */
-	    else if (is_binary(obj)) {  /* binary tail is OK */
-		IO_LIST_VEC_COUNT(obj);
-	    }
-	    else if (!is_nil(obj)) {
-		goto L_type_error;
-	    }
-	}
-	else if (is_binary(obj)) {
-	    IO_LIST_VEC_COUNT(obj);
-	}
-	else if (!is_nil(obj)) {
-	    goto L_type_error;
-	}
-    }
-
-    total = c_size + b_size;
-    if (total < c_size) {
-	goto L_overflow_error;
-    }
-    *total_size = (ErlDrvSizeT) total;
-
-    DESTROY_ESTACK(s);
-    *vsize = v_size;
-    *csize = c_size;
-    *pvsize = p_v_size;
-    *pcsize = p_c_size;
-    return 0;
-
- L_type_error:
- L_overflow_error:
-    DESTROY_ESTACK(s);
-    return 1;
-}
-
 typedef enum {
     ERTS_TRY_IMM_DRV_CALL_OK,
     ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK,
@@ -1750,8 +1422,7 @@ cleanup_scheduled_outputv(ErlIOVec *ev, ErlDrvBinary *cbinp)
     int i;
     /* Need to free all binaries */
     for (i = 1; i < ev->vsize; i++)
-	if (ev->binv[i])
-	    driver_free_binary(ev->binv[i]);
+        driver_free_binary(ev->binv[i]);
     if (cbinp)
 	driver_free_binary(cbinp);
 }
@@ -1919,15 +1590,14 @@ erts_port_output_async(Port *prt, Eterm from, Eterm list)
     size_t size;
     int task_flags;
     ErtsProc2PortSigCallback port_sig_callback;
-    ErlDrvBinary *cbin = NULL;
-    ErlIOVec *evp = NULL;
+    ErtsIOQBinary *cbin = NULL;
+    ErtsIOVec *evp = NULL;
     char *buf = NULL;
     ErtsPortTaskHandle *ns_pthp;
 
     if (drv->outputv) {
-        ErlIOVec ev;
 	SysIOVec* ivp;
-	ErlDrvBinary**  bvp;
+	ErtsIOQBinary**  bvp;
         int vsize;
 	Uint csize;
 	Uint pvsize;
@@ -1937,91 +1607,63 @@ erts_port_output_async(Port *prt, Eterm from, Eterm list)
         char *ptr;
         int i;
 
-        Eterm* bptr = NULL;
-        Uint offset;
-
-        if (is_binary(list)) {
-            /* We optimize for when we get a procbin without offset */
-            Eterm real_bin;
-            int bitoffs;
-            int bitsize;
-            ERTS_GET_REAL_BIN(list, real_bin, offset, bitoffs, bitsize);
-            bptr = binary_val(real_bin);
-            if (*bptr == HEADER_PROC_BIN && bitoffs == 0) {
-                size = binary_size(list);
-                vsize = 1;
-            } else
-                bptr = NULL;
-        }
-
-        if (!bptr) {
-            if (io_list_vec_len(list, &vsize, &csize, &pvsize, &pcsize, &size))
-                goto bad_value;
+        if (erts_ioq_iodata_vec_len(list, &vsize, &csize, &pvsize, &pcsize,
+                                    &size, ERL_SMALL_IO_BIN_LIMIT))
+            goto bad_value;
 
-            /* To pack or not to pack (small binaries) ...? */
-            if (vsize >= SMALL_WRITE_VEC) {
-                /* Do pack */
-                vsize = pvsize + 1;
-                csize = pcsize;
-                blimit = ERL_SMALL_IO_BIN_LIMIT;
-            }
-            cbin = driver_alloc_binary(csize);
+        /* To pack or not to pack (small binaries) ...? */
+        if (vsize >= SMALL_WRITE_VEC) {
+            /* Do pack */
+            vsize = pvsize + 1;
+            csize = pcsize;
+            blimit = ERL_SMALL_IO_BIN_LIMIT;
+        }
+        if (csize) {
+            cbin = (ErtsIOQBinary *)driver_alloc_binary(csize);
             if (!cbin)
                 erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, ERTS_SIZEOF_Binary(csize));
         }
 
-
         iov_offset = ERTS_ALC_DATA_ALIGN_SIZE(sizeof(ErlIOVec));
 	binv_offset = iov_offset;
         binv_offset += ERTS_ALC_DATA_ALIGN_SIZE((vsize+1)*sizeof(SysIOVec));
         alloc_size = binv_offset;
-	alloc_size += (vsize+1)*sizeof(ErlDrvBinary *);
+	alloc_size += (vsize+1)*sizeof(ErtsIOQBinary *);
 
         sigdp = erts_port_task_alloc_p2p_sig_data_extra(alloc_size, (void**)&ptr);
 
-        evp = (ErlIOVec *) ptr;
-        ivp = evp->iov = (SysIOVec *) (ptr + iov_offset);
-        bvp = evp->binv = (ErlDrvBinary **) (ptr + binv_offset);
+        evp = (ErtsIOVec *) ptr;
+        ivp = evp->driver.iov = (SysIOVec *) (ptr + iov_offset);
+        bvp = evp->common.binv = (ErtsIOQBinary **) (ptr + binv_offset);
 
         ivp[0].iov_base = NULL;
 	ivp[0].iov_len = 0;
 	bvp[0] = NULL;
 
-        if (bptr) {
-            ProcBin* pb = (ProcBin *) bptr;
-
-            ivp[1].iov_base = pb->bytes+offset;
-            ivp[1].iov_len = size;
-            bvp[1] = Binary2ErlDrvBinary(pb->val);
-
-            evp->vsize = 1;
-        } else {
-
-            evp->vsize = io_list_to_vec(list, ivp+1, bvp+1, cbin, blimit);
-            if (evp->vsize < 0) {
-                if (evp != &ev)
-                    erts_free(ERTS_ALC_T_DRV_CMD_DATA, evp);
-                driver_free_binary(cbin);
-                goto bad_value;
-            }
+        evp->driver.vsize = erts_ioq_iodata_to_vec(list, ivp+1, bvp+1, cbin,
+                                                   blimit, 1);
+        if (evp->driver.vsize < 0) {
+            erts_free(ERTS_ALC_T_DRV_CMD_DATA, evp);
+            driver_free_binary(&cbin->driver);
+            goto bad_value;
         }
 #if 0
 	/* This assertion may say something useful, but it can
         be falsified during the emulator test suites. */
 	ASSERT(evp->vsize == vsize);
 #endif
-	evp->vsize++;
-	evp->size = size;  /* total size */
+	evp->driver.vsize++;
+	evp->driver.size = size;  /* total size */
 
         /* Need to increase refc on all binaries */
-        for (i = 1; i < evp->vsize; i++)
+        for (i = 1; i < evp->driver.vsize; i++)
             if (bvp[i])
-                driver_binary_inc_refc(bvp[i]);
+                driver_binary_inc_refc(&bvp[i]->driver);
 
 	sigdp->flags = ERTS_P2P_SIG_TYPE_OUTPUTV;
 	sigdp->u.outputv.from = from;
-	sigdp->u.outputv.evp = evp;
-	sigdp->u.outputv.cbinp = cbin;
+	sigdp->u.outputv.evp = &evp->driver;
+	sigdp->u.outputv.cbinp = &cbin->driver;
 	port_sig_callback = port_sig_outputv;
     } else {
         ErlDrvSizeT ERTS_DECLARE_DUMMY(r);
@@ -2092,8 +1734,8 @@ erts_port_output(Process *c_p,
     erts_aint32_t sched_flags, busy_flgs, invalid_flags;
     int task_flags;
     ErtsProc2PortSigCallback port_sig_callback;
-    ErlDrvBinary *cbin = NULL;
-    ErlIOVec *evp = NULL;
+    ErtsIOQBinary *cbin = NULL;
+    ErtsIOVec *evp = NULL;
     char *buf = NULL;
     int force_immediate_call = (flags & ERTS_PORT_SIG_FLG_FORCE_IMM_CALL);
     int async_nosuspend;
@@ -2139,11 +1781,11 @@ erts_port_output(Process *c_p,
     }
 #endif
     if (drv->outputv) {
-	ErlIOVec ev;
+	ErtsIOVec ev;
 	SysIOVec iv[SMALL_WRITE_VEC];
-	ErlDrvBinary* bv[SMALL_WRITE_VEC];
+	ErtsIOQBinary* bv[SMALL_WRITE_VEC];
 	SysIOVec* ivp;
-	ErlDrvBinary**  bvp;
+	ErtsIOQBinary**  bvp;
 	int vsize;
 	Uint csize;
 	Uint pvsize;
@@ -2151,18 +1793,19 @@ erts_port_output(Process *c_p,
 	Uint blimit;
 	size_t iov_offset, binv_offset, alloc_size;
 
-	if (io_list_vec_len(list, &vsize, &csize, &pvsize, &pcsize, &size))
+	if (erts_ioq_iodata_vec_len(list, &vsize, &csize, &pvsize, &pcsize,
+                                    &size, ERL_SMALL_IO_BIN_LIMIT))
 	    goto bad_value;
 
 	iov_offset = ERTS_ALC_DATA_ALIGN_SIZE(sizeof(ErlIOVec));
 	binv_offset = iov_offset;
 	binv_offset += ERTS_ALC_DATA_ALIGN_SIZE((vsize+1)*sizeof(SysIOVec));
 	alloc_size = binv_offset;
-	alloc_size += (vsize+1)*sizeof(ErlDrvBinary *);
+	alloc_size += (vsize+1)*sizeof(ErtsIOQBinary *);
 
 	if (try_call && vsize < SMALL_WRITE_VEC) {
-	    ivp = ev.iov = iv;
-	    bvp = ev.binv = bv;
+	    ivp = ev.common.iov = iv;
+	    bvp = ev.common.binv = bv;
 	    evp = &ev;
 	}
 	else {
@@ -2173,9 +1816,9 @@ erts_port_output(Process *c_p,
                 sigdp = erts_port_task_alloc_p2p_sig_data_extra(
                     alloc_size, (void**)&ptr);
             }
-	    evp = (ErlIOVec *) ptr;
-	    ivp = evp->iov = (SysIOVec *) (ptr + iov_offset);
-	    bvp = evp->binv = (ErlDrvBinary **) (ptr + binv_offset);
+	    evp = (ErtsIOVec *) ptr;
+	    ivp = evp->driver.iov = (SysIOVec *) (ptr + iov_offset);
+	    bvp = evp->common.binv = (ErtsIOQBinary **) (ptr + binv_offset);
 	}
 
 	/* To pack or not to pack (small binaries) ...? */
@@ -2191,23 +1834,26 @@ erts_port_output(Process *c_p,
 	}
 	/* Use vsize and csize from now on */
 
-	cbin = driver_alloc_binary(csize);
-	if (!cbin)
-	    erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, ERTS_SIZEOF_Binary(csize));
+        if (csize) {
+            cbin = (ErtsIOQBinary *)driver_alloc_binary(csize);
+            if (!cbin)
+                erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, ERTS_SIZEOF_Binary(csize));
+        }
 
 	/* Element 0 is for driver usage to add header block */
 	ivp[0].iov_base = NULL;
 	ivp[0].iov_len = 0;
 	bvp[0] = NULL;
-	evp->vsize = io_list_to_vec(list, ivp+1, bvp+1, cbin, blimit);
-	if (evp->vsize < 0) {
+	evp->driver.vsize = erts_ioq_iodata_to_vec(list, ivp+1, bvp+1,
+                                                   cbin, blimit, 1);
+	if (evp->driver.vsize < 0) {
             if (evp != &ev) {
                 if (try_call)
                     erts_free(ERTS_ALC_T_TMP, evp);
                 else
                     erts_port_task_free_p2p_sig_data(sigdp);
             }
-	    driver_free_binary(cbin);
+            driver_free_binary(&cbin->driver);
 	    goto bad_value;
 	}
 #if 0
@@ -2215,19 +1861,19 @@ erts_port_output(Process *c_p,
 	   be falsified during the emulator test suites. */
 	ASSERT(evp->vsize == vsize);
 #endif
-	evp->vsize++;
-	evp->size = size;  /* total size */
+	evp->driver.vsize++;
+	evp->driver.size = size;  /* total size */
 
 	if (!try_call) {
 	    int i;
 	    /* Need to increase refc on all binaries */
-	    for (i = 1; i < evp->vsize; i++)
-		if (bvp[i])
-		    driver_binary_inc_refc(bvp[i]);
+	    for (i = 1; i < evp->driver.vsize; i++)
+                if (bvp[i])
+                    driver_binary_inc_refc(&bvp[i]->driver);
 	}
 	else {
 	    int i;
-	    ErlIOVec *new_evp;
+	    ErtsIOVec *new_evp;
 	    ErtsTryImmDrvCallResult try_call_res;
 	    ErtsTryImmDrvCallState try_call_state
 		= ERTS_INIT_TRY_IMM_DRV_CALL_STATE(
@@ -2250,14 +1896,14 @@ erts_port_output(Process *c_p,
 				    from,
 				    prt,
 				    drv,
-				    evp);
+				    &evp->driver);
 		if (force_immediate_call)
 		    finalize_force_imm_drv_call(&try_call_state);
 		else
 		    finalize_imm_drv_call(&try_call_state);
 		/* Fall through... */
 	    case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
-		driver_free_binary(cbin);
+		driver_free_binary(&cbin->driver);
 		if (evp != &ev) {
                     ASSERT(!sigdp);
 		    erts_free(ERTS_ALC_T_TMP, evp);
@@ -2271,7 +1917,7 @@ erts_port_output(Process *c_p,
 		sched_flags = try_call_state.sched_flags;
 		if (async_nosuspend
 		    && (sched_flags & (busy_flgs|ERTS_PTS_FLG_EXIT))) {
-		    driver_free_binary(cbin);
+		    driver_free_binary(&cbin->driver);
                     if (evp != &ev) {
                         ASSERT(!sigdp);
 			erts_free(ERTS_ALC_T_TMP, evp);
@@ -2286,9 +1932,9 @@ erts_port_output(Process *c_p,
 	    }
 
 	    /* Need to increase refc on all binaries */
-	    for (i = 1; i < evp->vsize; i++)
+	    for (i = 1; i < evp->driver.vsize; i++)
 		if (bvp[i])
-		    driver_binary_inc_refc(bvp[i]);
+		    driver_binary_inc_refc(&bvp[i]->driver);
 
             /* The port task and iovec is allocated in the
                same structure as an optimization. This
@@ -2301,18 +1947,18 @@ erts_port_output(Process *c_p,
 	    if (evp != &ev) {
                 /* Copy from TMP alloc to port task */
 		sys_memcpy((void *) new_evp, (void *) evp, alloc_size);
-		new_evp->iov = (SysIOVec *) (((char *) new_evp)
-					     + iov_offset);
-		bvp = new_evp->binv = (ErlDrvBinary **) (((char *) new_evp)
-							 + binv_offset);
+		new_evp->driver.iov = (SysIOVec *) (((char *) new_evp)
+                                                    + iov_offset);
+		bvp = new_evp->common.binv = (ErtsIOQBinary **) (((char *) new_evp)
+                                                                 + binv_offset);
 
 #ifdef DEBUG
-		ASSERT(new_evp->vsize == evp->vsize);
-		ASSERT(new_evp->size == evp->size);
-		for (i = 0; i < evp->vsize; i++) {
-		    ASSERT(new_evp->iov[i].iov_len == evp->iov[i].iov_len);
-		    ASSERT(new_evp->iov[i].iov_base == evp->iov[i].iov_base);
-		    ASSERT(new_evp->binv[i] == evp->binv[i]);
+		ASSERT(new_evp->driver.vsize == evp->driver.vsize);
+		ASSERT(new_evp->driver.size == evp->driver.size);
+		for (i = 0; i < evp->driver.vsize; i++) {
+		    ASSERT(new_evp->driver.iov[i].iov_len == evp->driver.iov[i].iov_len);
+		    ASSERT(new_evp->driver.iov[i].iov_base == evp->driver.iov[i].iov_base);
+		    ASSERT(new_evp->driver.binv[i] == evp->driver.binv[i]);
 		}
 #endif
 
@@ -2321,24 +1967,24 @@ erts_port_output(Process *c_p,
 	    else { /* from stack allocated structure; offsets may differ */
 
 		sys_memcpy((void *) new_evp, (void *) evp, sizeof(ErlIOVec));
-		new_evp->iov = (SysIOVec *) (((char *) new_evp)
-					     + iov_offset);
-		sys_memcpy((void *) new_evp->iov,
-			   (void *) evp->iov,
-			   evp->vsize * sizeof(SysIOVec));
-		new_evp->binv = (ErlDrvBinary **) (((char *) new_evp)
-						   + binv_offset);
-		sys_memcpy((void *) new_evp->binv,
-			   (void *) evp->binv,
-			   evp->vsize * sizeof(ErlDrvBinary *));
+		new_evp->driver.iov = (SysIOVec *) (((char *) new_evp)
+                                                    + iov_offset);
+		sys_memcpy((void *) new_evp->driver.iov,
+			   (void *) evp->driver.iov,
+			   evp->driver.vsize * sizeof(SysIOVec));
+		new_evp->common.binv = (ErtsIOQBinary **) (((char *) new_evp)
+                                                           + binv_offset);
+		sys_memcpy((void *) new_evp->common.binv,
+			   (void *) evp->common.binv,
+			   evp->driver.vsize * sizeof(ErtsIOQBinary *));
 
 #ifdef DEBUG
-		ASSERT(new_evp->vsize == evp->vsize);
-		ASSERT(new_evp->size == evp->size);
-		for (i = 0; i < evp->vsize; i++) {
-		    ASSERT(new_evp->iov[i].iov_len == evp->iov[i].iov_len);
-		    ASSERT(new_evp->iov[i].iov_base == evp->iov[i].iov_base);
-		    ASSERT(new_evp->binv[i] == evp->binv[i]);
+		ASSERT(new_evp->driver.vsize == evp->driver.vsize);
+		ASSERT(new_evp->driver.size == evp->driver.size);
+		for (i = 0; i < evp->driver.vsize; i++) {
+		    ASSERT(new_evp->driver.iov[i].iov_len == evp->driver.iov[i].iov_len);
+		    ASSERT(new_evp->driver.iov[i].iov_base == evp->driver.iov[i].iov_base);
+		    ASSERT(new_evp->driver.binv[i] == evp->driver.binv[i]);
 		}
 #endif
 
@@ -2349,8 +1995,8 @@ erts_port_output(Process *c_p,
 
 	sigdp->flags = ERTS_P2P_SIG_TYPE_OUTPUTV;
 	sigdp->u.outputv.from = from;
-	sigdp->u.outputv.evp = evp;
-	sigdp->u.outputv.cbinp = cbin;
+	sigdp->u.outputv.evp = &evp->driver;
+	sigdp->u.outputv.cbinp = &cbin->driver;
 	port_sig_callback = port_sig_outputv;
     }
     else {
@@ -5744,24 +5390,17 @@ erts_stale_drv_select(Eterm port,
     switch (mode) {
     case ERL_DRV_READ | ERL_DRV_WRITE:
 	type = "Input/Output";
-	goto deselect;
     case ERL_DRV_WRITE:
 	type = "Output";
-	goto deselect;
     case ERL_DRV_READ:
 	type = "Input";
-    deselect:
-	if (deselect) {
-	    driver_select(drv_port, hndl,
-			  mode | ERL_DRV_USE_NO_CALLBACK,
-			  0);
-	}
-	break;
     default:
-	type = "Event";
-	if (deselect)
-	    driver_event(drv_port, hndl, NULL);
-	break;
+        type = "";
+    }
+    if (deselect) {
+        driver_select(drv_port, hndl,
+                      mode | ERL_DRV_USE_NO_CALLBACK,
+                      0);
     }
 
     dsbufp = erts_create_logger_dsbuf();
@@ -6682,6 +6321,7 @@ int driver_output_binary(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen,
     else
 	erts_atomic64_add_nob(&bytes_in, (erts_aint64_t) (hlen + len));
     if (state & ERTS_PORT_SFLG_DISTRIBUTION) {
+        erts_atomic64_inc_nob(&prt->dist_entry->in);
 	return erts_net_message(prt,
 				prt->dist_entry,
 				(byte*) hbuf, hlen,
@@ -6722,6 +6362,7 @@ int driver_output2(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen,
     else
 	erts_atomic64_add_nob(&bytes_in, (erts_aint64_t) (hlen + len));
     if (state & ERTS_PORT_SFLG_DISTRIBUTION) {
+        erts_atomic64_inc_nob(&prt->dist_entry->in);
 	if (len == 0)
 	    return erts_net_message(prt,
 				    prt->dist_entry,
@@ -7088,307 +6729,51 @@ driver_pdl_dec_refc(ErlDrvPDL pdl)
     return refc;
 }
 
-/* expand queue to hold n elements in tail or head */
-static int expandq(ErlIOQueue* q, int n, int tail)
-/* tail: 0 if make room in head, make room in tail otherwise */
-{
-    int h_sz;  /* room before header */
-    int t_sz;  /* room after tail */
-    int q_sz;  /* occupied */
-    int nvsz;
-    SysIOVec* niov;
-    ErlDrvBinary** nbinv;
-
-    h_sz = q->v_head - q->v_start;
-    t_sz = q->v_end -  q->v_tail;
-    q_sz = q->v_tail - q->v_head;
-
-    if (tail && (n <= t_sz)) /* do we need to expand tail? */
-	return 0;
-    else if (!tail && (n <= h_sz))  /* do we need to expand head? */
-	return 0;
-    else if (n > (h_sz + t_sz)) { /* need to allocate */
-	/* we may get little extra but it ok */
-	nvsz = (q->v_end - q->v_start) + n; 
-
-	niov = erts_alloc_fnf(ERTS_ALC_T_IOQ, nvsz * sizeof(SysIOVec));
-	if (!niov)
-	    return -1;
-	nbinv = erts_alloc_fnf(ERTS_ALC_T_IOQ, nvsz * sizeof(ErlDrvBinary**));
-	if (!nbinv) {
-	    erts_free(ERTS_ALC_T_IOQ, (void *) niov);
-	    return -1;
-	}
-	if (tail) {
-	    sys_memcpy(niov, q->v_head, q_sz*sizeof(SysIOVec));
-	    if (q->v_start != q->v_small)
-		erts_free(ERTS_ALC_T_IOQ, (void *) q->v_start);
-	    q->v_start = niov;
-	    q->v_end = niov + nvsz;
-	    q->v_head = q->v_start;
-	    q->v_tail = q->v_head + q_sz;
-
-	    sys_memcpy(nbinv, q->b_head, q_sz*sizeof(ErlDrvBinary*));
-	    if (q->b_start != q->b_small)
-		erts_free(ERTS_ALC_T_IOQ, (void *) q->b_start);
-	    q->b_start = nbinv;
-	    q->b_end = nbinv + nvsz;
-	    q->b_head = q->b_start;
-	    q->b_tail = q->b_head + q_sz;	
-	}
-	else {
-	    sys_memcpy(niov+nvsz-q_sz, q->v_head, q_sz*sizeof(SysIOVec));
-	    if (q->v_start != q->v_small)
-		erts_free(ERTS_ALC_T_IOQ, (void *) q->v_start);
-	    q->v_start = niov;
-	    q->v_end = niov + nvsz;
-	    q->v_tail = q->v_end;
-	    q->v_head = q->v_tail - q_sz;
-	    
-	    sys_memcpy(nbinv+nvsz-q_sz, q->b_head, q_sz*sizeof(ErlDrvBinary*));
-	    if (q->b_start != q->b_small)
-		erts_free(ERTS_ALC_T_IOQ, (void *) q->b_start);
-	    q->b_start = nbinv;
-	    q->b_end = nbinv + nvsz;
-	    q->b_tail = q->b_end;
-	    q->b_head = q->b_tail - q_sz;
-	}
-    }
-    else if (tail) {  /* move to beginning to make room in tail */
-	sys_memmove(q->v_start, q->v_head, q_sz*sizeof(SysIOVec));
-	q->v_head = q->v_start;
-	q->v_tail = q->v_head + q_sz;
-	sys_memmove(q->b_start, q->b_head, q_sz*sizeof(ErlDrvBinary*));
-	q->b_head = q->b_start;
-	q->b_tail = q->b_head + q_sz;
-    }
-    else {   /* move to end to make room */
-	sys_memmove(q->v_end-q_sz, q->v_head, q_sz*sizeof(SysIOVec));
-	q->v_tail = q->v_end;
-	q->v_head = q->v_tail-q_sz;
-	sys_memmove(q->b_end-q_sz, q->b_head, q_sz*sizeof(ErlDrvBinary*));
-	q->b_tail = q->b_end;
-	q->b_head = q->b_tail-q_sz;
-    }
-
-    return 0;
-}
-
-
-
 /* Put elements from vec at q tail */
 int driver_enqv(ErlDrvPort ix, ErlIOVec* vec, ErlDrvSizeT skip)
 {
-    int n;
-    size_t len;
-    ErlDrvSizeT size;
-    SysIOVec* iov;
-    ErlDrvBinary** binv;
-    ErlDrvBinary*  b;
-    ErlIOQueue* q = drvport2ioq(ix);
-
-    if (q == NULL)
-	return -1;
-
-    ASSERT(vec->size >= skip);       /* debug only */
-    if (vec->size <= skip)
-	return 0;
-    size = vec->size - skip;
-
-    iov = vec->iov;
-    binv = vec->binv;
-    n = vec->vsize;
-
-    /* we use do here to strip iov_len=0 from beginning */
-    do {
-	len = iov->iov_len;
-	if (len <= skip) {
-	    skip -= len;
-	    iov++;
-	    binv++;
-	    n--;
-	}
-	else {
-	    iov->iov_base = ((char *)(iov->iov_base)) + skip;
-	    iov->iov_len -= skip;
-	    skip = 0;
-	}
-    } while(skip > 0);
-
-    if (q->v_tail + n >= q->v_end)
-	expandq(q, n, 1);
-
-    /* Queue and reference all binaries (remove zero length items) */
-    while(n--) {
-	if ((len = iov->iov_len) > 0) {
-	    if ((b = *binv) == NULL) { /* speical case create binary ! */
-		b = driver_alloc_binary(len);
-		sys_memcpy(b->orig_bytes, iov->iov_base, len);
-		*q->b_tail++ = b;
-		q->v_tail->iov_len = len;
-		q->v_tail->iov_base = b->orig_bytes;
-		q->v_tail++;
-	    }
-	    else {
-		driver_binary_inc_refc(b);
-		*q->b_tail++ = b;
-		*q->v_tail++ = *iov;
-	    }
-	}
-	iov++;
-	binv++;
-    }
-    q->size += size;      /* update total size in queue */
-    return 0;
+    ASSERT(vec->size >= skip);
+    return erts_ioq_enqv(drvport2ioq(ix), (ErtsIOVec*)vec, skip);
 }
 
 /* Put elements from vec at q head */
 int driver_pushqv(ErlDrvPort ix, ErlIOVec* vec, ErlDrvSizeT skip)
 {
-    int n;
-    size_t len;
-    ErlDrvSizeT size;
-    SysIOVec* iov;
-    ErlDrvBinary** binv;
-    ErlDrvBinary* b;
-    ErlIOQueue* q = drvport2ioq(ix);
-
-    if (q == NULL)
-	return -1;
-
-    if (vec->size <= skip)
-	return 0;
-    size = vec->size - skip;
-
-    iov = vec->iov;
-    binv = vec->binv;
-    n = vec->vsize;
-
-    /* we use do here to strip iov_len=0 from beginning */
-    do {
-	len = iov->iov_len;
-	if (len <= skip) {
-	    skip -= len;
-	    iov++;
-	    binv++;
-	    n--;
-	}
-	else {
-	    iov->iov_base = ((char *)(iov->iov_base)) + skip;
-	    iov->iov_len -= skip;
-	    skip = 0;
-	}
-    } while(skip > 0);
-
-    if (q->v_head - n < q->v_start)
-	expandq(q, n, 0);
-
-    /* Queue and reference all binaries (remove zero length items) */
-    iov += (n-1);  /* move to end */
-    binv += (n-1); /* move to end */
-    while(n--) {
-	if ((len = iov->iov_len) > 0) {
-	    if ((b = *binv) == NULL) { /* speical case create binary ! */
-		b = driver_alloc_binary(len);
-		sys_memcpy(b->orig_bytes, iov->iov_base, len);
-		*--q->b_head = b;
-		q->v_head--;
-		q->v_head->iov_len = len;
-		q->v_head->iov_base = b->orig_bytes;
-	    }
-	    else {
-		driver_binary_inc_refc(b);
-		*--q->b_head = b;
-		*--q->v_head = *iov;
-	    }
-	}
-	iov--;
-	binv--;
-    }
-    q->size += size;      /* update total size in queue */
-    return 0;
+    ASSERT(vec->size >= skip);
+    return erts_ioq_pushqv(drvport2ioq(ix), (ErtsIOVec*)vec, skip);
 }
 
-
 /*
 ** Remove size bytes from queue head
 ** Return number of bytes that remain in queue
 */
 ErlDrvSizeT driver_deq(ErlDrvPort ix, ErlDrvSizeT size)
 {
-    ErlIOQueue* q = drvport2ioq(ix);
-    ErlDrvSizeT len;
-
-    if ((q == NULL) || (q->size < size))
-	return -1;
-    q->size -= size;
-    while (size > 0) {
-	ASSERT(q->v_head != q->v_tail);
-
-	len = q->v_head->iov_len;
-	if (len <= size) {
-	    size -= len;
-	    driver_free_binary(*q->b_head);
-	    *q->b_head++ = NULL;
-	    q->v_head++;
-	}
-	else {
-	    q->v_head->iov_base = ((char *)(q->v_head->iov_base)) + size;
-	    q->v_head->iov_len -= size;
-	    size = 0;
-	}
-    }
-
-    /* restart pointers (optimised for enq) */
-    if (q->v_head == q->v_tail) {
-	q->v_head = q->v_tail = q->v_start;
-	q->b_head = q->b_tail = q->b_start;
-    }
-    return q->size;
+    ErlPortIOQueue *q = drvport2ioq(ix);
+    if (erts_ioq_deq(q, size) == -1)
+        return -1;
+    return erts_ioq_size(q);
 }
 
 
-ErlDrvSizeT driver_peekqv(ErlDrvPort ix, ErlIOVec *ev) {
-    ErlIOQueue *q = drvport2ioq(ix);
-    ASSERT(ev);
-
-    if (! q) {
-	return (ErlDrvSizeT) -1;
-    } else {
-	if ((ev->vsize = q->v_tail - q->v_head) == 0) {
-	    ev->size = 0;
-	    ev->iov = NULL;
-	    ev->binv = NULL;
-	} else {
-	    ev->size = q->size;
-	    ev->iov = q->v_head;
-	    ev->binv = q->b_head;
-	}
-	return q->size;
-    }
+ErlDrvSizeT driver_peekqv(ErlDrvPort ix, ErlIOVec *ev)
+{
+    return erts_ioq_peekqv(drvport2ioq(ix), (ErtsIOVec*)ev);
 }
 
 SysIOVec* driver_peekq(ErlDrvPort ix, int* vlenp)  /* length of io-vector */
 {
-    ErlIOQueue* q = drvport2ioq(ix);
-
-    if (q == NULL) {
-	*vlenp = -1;
-	return NULL;
-    }
-    if ((*vlenp = (q->v_tail - q->v_head)) == 0)
-	return NULL;
-    return q->v_head;
+    return erts_ioq_peekq(drvport2ioq(ix), vlenp);
 }
 
 
 ErlDrvSizeT driver_sizeq(ErlDrvPort ix)
 {
-    ErlIOQueue* q = drvport2ioq(ix);
+    ErlPortIOQueue *q = drvport2ioq(ix);
 
     if (q == NULL)
-	return (size_t) -1;
-    return q->size;
+	return (ErlDrvSizeT) -1;
+    return erts_ioq_size(q);
 }
 
 
@@ -8092,11 +7477,7 @@ driver_system_info(ErlDrvSysInfo *sip, size_t si_size)
      */
     if (si_size >= ERL_DRV_SYS_INFO_SIZE(dirty_scheduler_support)) {
 	sip->dirty_scheduler_support =
-#ifdef ERTS_DIRTY_SCHEDULERS
 	    1
-#else
-	    0
-#endif
 	    ;
     }
 
@@ -8123,14 +7504,6 @@ no_output_callback(ErlDrvData drv_data, char *buf, ErlDrvSizeT len)
 }
 
 static void
-no_event_callback(ErlDrvData drv_data, ErlDrvEvent event, ErlDrvEventData event_data)
-{
-    Port *prt = get_current_port();
-    report_missing_drv_callback(prt, "Event", "event()");
-    driver_event(ERTS_Port2ErlDrvPort(prt), event, NULL);
-}
-
-static void
 no_ready_input_callback(ErlDrvData drv_data, ErlDrvEvent event)
 {
     Port *prt = get_current_port();
@@ -8197,7 +7570,6 @@ init_driver(erts_driver_t *drv, ErlDrvEntry *de, DE_Handle *handle)
     drv->outputv = de->outputv;
     drv->control = de->control;
     drv->call = de->call;
-    drv->event = de->event ? de->event : no_event_callback;
     drv->ready_input = de->ready_input ? de->ready_input : no_ready_input_callback;
     drv->ready_output = de->ready_output ? de->ready_output : no_ready_output_callback;
     drv->timeout = de->timeout ? de->timeout : no_timeout_callback;
diff --git a/erts/emulator/beam/macros.tab b/erts/emulator/beam/macros.tab
index 41dc761e90..e0b5f56b53 100644
--- a/erts/emulator/beam/macros.tab
+++ b/erts/emulator/beam/macros.tab
@@ -28,21 +28,45 @@ REFRESH_GEN_DEST() {
     dst_ptr = REG_TARGET_PTR(dst);
 }
 
+// $Offset is relative to the start of the instruction (not to the
+// location of the failure label reference). Since combined
+// instructions may increment the instruction pointer (e.g. in
+// 'increment') for some of the instructions in the group, we actually
+// use a virtual start position common to all instructions in the
+// group. To calculate the correct virtual position, we will need to
+// add $IP_ADJUSTMENT to the offset. ($IP_ADJUSTMENT will usually be
+// zero, except in a few bit syntax instructions.)
+
+SET_I_REL(Offset) {
+    ASSERT(VALID_INSTR(*(I + ($Offset) + $IP_ADJUSTMENT)));
+    I += $Offset + $IP_ADJUSTMENT;
+}
+
+SET_CP_I_ABS(Target) {
+    c_p->i = $Target;
+    ASSERT(VALID_INSTR(*c_p->i));
+}
+
+SET_REL_I(Dst, Offset) {
+    $Dst = I + ($Offset);
+    ASSERT(VALID_INSTR(*$Dst));
+}
+
 FAIL(Fail) {
     //| -no_prefetch
-    SET_I((BeamInstr *) $Fail);
+    $SET_I_REL($Fail);
     Goto(*I);
 }
 
 JUMP(Fail) {
     //| -no_next
-    SET_I((BeamInstr *) $Fail);
+    $SET_I_REL($Fail);
     Goto(*I);
 }
 
 GC_TEST(Ns, Nh, Live) {
     Uint need = $Nh + $Ns;
-    if (E - HTOP < need) {
+    if (ERTS_UNLIKELY(E - HTOP < need)) {
        SWAPOUT;
        PROCESS_MAIN_CHK_LOCKS(c_p);
        FCALLS -= erts_garbage_collect_nobump(c_p, need, reg, $Live, FCALLS);
@@ -55,7 +79,7 @@ GC_TEST(Ns, Nh, Live) {
 
 GC_TEST_PRESERVE(NeedHeap, Live, PreserveTerm) {
     Uint need = $NeedHeap;
-    if (E - HTOP < need) {
+    if (ERTS_UNLIKELY(E - HTOP < need)) {
        SWAPOUT;
        reg[$Live] = $PreserveTerm;
        PROCESS_MAIN_CHK_LOCKS(c_p);
@@ -65,7 +89,7 @@ GC_TEST_PRESERVE(NeedHeap, Live, PreserveTerm) {
        $PreserveTerm = reg[$Live];
        SWAPIN;
     }
-    HEAP_SPACE_VERIFIED($Nh);
+    HEAP_SPACE_VERIFIED($NeedHeap);
 }
 
 
@@ -99,7 +123,13 @@ FAIL_BODY() {
 
 FAIL_HEAD_OR_BODY(Fail) {
     //| -no_prefetch
-    if ($Fail) {
+
+    /*
+     * In a correctly working program, we expect failures in
+     * guards to be more likely than failures in bodies.
+     */
+
+    if (ERTS_LIKELY($Fail)) {
         $FAIL($Fail);
     }
     goto find_func_info;
@@ -122,7 +152,7 @@ SYSTEM_LIMIT(Fail) {
 
 BIF_ERROR_ARITY_1(Fail, BIF, Op1) {
     //| -no_prefetch
-    if ($Fail) {
+    if (ERTS_LIKELY($Fail)) {
         $FAIL($Fail);
     }
     reg[0] = $Op1;
@@ -133,7 +163,7 @@ BIF_ERROR_ARITY_1(Fail, BIF, Op1) {
 
 BIF_ERROR_ARITY_2(Fail, BIF, Op1, Op2) {
     //| -no_prefetch
-    if ($Fail) {
+    if (ERTS_LIKELY($Fail)) {
         $FAIL($Fail);
     }
     reg[0] = $Op1;
diff --git a/erts/emulator/beam/module.c b/erts/emulator/beam/module.c
index baeec115ea..1712dc803c 100644
--- a/erts/emulator/beam/module.c
+++ b/erts/emulator/beam/module.c
@@ -254,4 +254,3 @@ void module_end_staging(int commit)
 
     IF_DEBUG(dbg_load_code_ix = -1);
 }
-
diff --git a/erts/emulator/beam/module.h b/erts/emulator/beam/module.h
index 9a81e6035b..a3f1ce1705 100644
--- a/erts/emulator/beam/module.h
+++ b/erts/emulator/beam/module.h
@@ -45,7 +45,7 @@ typedef struct erl_module {
     int seen;			/* Used by finish_loading() */
 
     struct erl_module_instance curr;
-    struct erl_module_instance old; /* protected by "old_code" rwlock */
+    struct erl_module_instance old; /* active protected by "old_code" rwlock */
     struct erl_module_instance* on_load;
 } Module; 
 
diff --git a/erts/emulator/beam/msg_instrs.tab b/erts/emulator/beam/msg_instrs.tab
index 509143268b..8055a8616f 100644
--- a/erts/emulator/beam/msg_instrs.tab
+++ b/erts/emulator/beam/msg_instrs.tab
@@ -49,7 +49,7 @@ recv_mark(Dest) {
      * the label for the loop_rec/2 instruction for the
      * the receive statement.
      */
-    c_p->msg.mark = (BeamInstr *) $Dest;
+    $SET_REL_I(c_p->msg.mark, $Dest);
     c_p->msg.saved_last = c_p->msg.last;
 }
 
@@ -66,7 +66,9 @@ i_recv_set() {
     if (c_p->msg.mark == (BeamInstr *) ($NEXT_INSTRUCTION)) {
         c_p->msg.save = c_p->msg.saved_last;
     }
-    /* Fall through to the loop_rec/2 instruction */
+    SET_I($NEXT_INSTRUCTION);
+    goto loop_rec_top__;
+    //| -no_next
 }
 
 i_loop_rec(Dest) {
@@ -79,6 +81,10 @@ i_loop_rec(Dest) {
 
     ErtsMessage* msgp;
 
+    /* Entry point from recv_set */
+ loop_rec_top__:
+    ;
+
     /*
      * We need to disable GC while matching messages
      * in the queue. This since messages with data outside
@@ -87,7 +93,8 @@ i_loop_rec(Dest) {
     ASSERT(!(c_p->flags & F_DELAY_GC));
     c_p->flags |= F_DELAY_GC;
 
-loop_rec__:
+    /* Entry point from loop_rec_end */
+ loop_rec__:
 
     PROCESS_MAIN_CHK_LOCKS(c_p);
 
@@ -109,7 +116,7 @@ loop_rec__:
             erts_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE);
         } else {
             c_p->flags &= ~F_DELAY_GC;
-            SET_I((BeamInstr *) $Dest);
+            $SET_I_REL($Dest);
             Goto(*I);		/* Jump to a wait or wait_timeout instruction */
         }
     }
@@ -246,7 +253,7 @@ loop_rec_end(Dest) {
 
     ASSERT(c_p->flags & F_DELAY_GC);
 
-    SET_I((BeamInstr *) $Dest);
+    $SET_I_REL($Dest);
     SAVE_MESSAGE(c_p);
     if (FCALLS > 0 || FCALLS > neg_o_reds) {
         FCALLS--;
@@ -254,7 +261,7 @@ loop_rec_end(Dest) {
     }
 
     c_p->flags &= ~F_DELAY_GC;
-    c_p->i = I;
+    $SET_CP_I_ABS(I);
     SWAPOUT;
     c_p->arity = 0;
     c_p->current = NULL;
@@ -285,6 +292,7 @@ timeout() {
 TIMEOUT_VALUE() {
     c_p->freason = EXC_TIMEOUT_VALUE;
     goto find_func_info;
+    //| -no_next
 }
 
 i_wait_error_locked() {
@@ -366,7 +374,7 @@ wait.src(Src) {
 //
 
 wait.execute(JumpTarget) {
-    c_p->i = (BeamInstr *) $JumpTarget; /* L1 */
+    $SET_REL_I(c_p->i, $JumpTarget); /* L1 */
     SWAPOUT;
     c_p->arity = 0;
 
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index b6e995fdbe..7a2c39b3a8 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -59,6 +59,7 @@ put_tuple u==0 d => too_old_compiler
 # All the other instructions.
 #
 
+%cold
 label L
 i_func_info I a a I
 int_code_end
@@ -68,6 +69,8 @@ i_debug_breakpoint
 i_return_time_trace
 i_return_to_trace
 i_yield
+trace_jump W
+%hot
 
 return
 
@@ -96,21 +99,21 @@ line Loc | func_info M F A => func_info M F A | line Loc
 
 line I
 
-allocate t t
-allocate_heap t I t
+allocate t t?
+allocate_heap t I t?
 
 %cold
 deallocate Q
 %hot
 
 init y
-allocate_zero t t
-allocate_heap_zero t I t
+allocate_zero t t?
+allocate_heap_zero t I t?
 
 trim N Remaining => i_trim N
 i_trim t
 
-test_heap I t
+test_heap I t?
 
 allocate_heap S u==0 R => allocate S R
 allocate_heap_zero S u==0 R => allocate_zero S R
@@ -155,19 +158,19 @@ is_tuple Fail=f S | select_tuple_arity S=d Fail=f Size=u Rest=* => \
 select_tuple_arity S=d Fail=f Size=u Rest=* => \
   gen_select_tuple_arity(S, Fail, Size, Rest)
 
-i_select_val_bins xy f I
+i_select_val_bins xy f? I
 
-i_select_val_lins xy f I
+i_select_val_lins xy f? I
 
-i_select_val2 xy f c c f f
+i_select_val2 xy f? c c
 
-i_select_tuple_arity xy f I
+i_select_tuple_arity xy f? I
 
-i_select_tuple_arity2 xy f A A f f
+i_select_tuple_arity2 xy f? A A
 
-i_jump_on_val_zero xy f I
+i_jump_on_val_zero xy f? I
 
-i_jump_on_val xy f I W
+i_jump_on_val xy f? I W
 
 get_list xy xy xy
 
@@ -185,10 +188,13 @@ catch_end y
 
 # Try/catch.
 try Y F => catch Y F
-try_case Y => try_end Y
+
+try_case y
 try_end y
 
+%cold
 try_case_end s
+%hot
 
 # Destructive set tuple element
 
@@ -208,15 +214,20 @@ i_get_tuple_element2y x P y y
 i_get_tuple_element3 x P x
 
 %cold
-is_number f x
-is_number f y
+is_number f? xy
 %hot
+
 is_number Fail=f i =>
 is_number Fail=f na => jump Fail
 is_number Fail Literal=q => move Literal x | is_number Fail x
 
 jump f
 
+#
+# Expection rasing instructions. Infrequently executed.
+#
+
+%cold
 case_end NotInX=cy => move NotInX x | case_end x
 badmatch NotInX=cy => move NotInX x | badmatch x
 
@@ -238,6 +249,12 @@ i_raise
 badarg j
 system_limit j
 
+%hot
+
+#
+# Move instructions.
+#
+
 move C=cxy x==0 | jump Lbl => move_jump Lbl C
 
 move_jump f ncxy
@@ -404,8 +421,10 @@ wait_timeout_unlocked s f
 wait_timeout_locked_int I f
 wait_timeout_locked s f
 
+%cold
 i_wait_error
 i_wait_error_locked
+%hot
 
 send
 
@@ -413,43 +432,52 @@ send
 # Optimized comparisons with one immediate/literal operand.
 #
 
-is_eq_exact Lbl R=xy C=ian => i_is_eq_exact_immed Lbl R C
+is_eq_exact Lbl S S =>
+is_eq_exact Lbl C1=c C2=c => move C1 x | is_eq_exact Lbl x C2
+is_eq_exact Lbl C=c R=xy => is_eq_exact Lbl R C
+
+is_eq_exact Lbl R=xy n => is_nil Lbl R
+is_eq_exact Lbl R=xy C=ia => i_is_eq_exact_immed Lbl R C
 is_eq_exact Lbl R=xy C=q => i_is_eq_exact_literal Lbl R C
 
+is_ne_exact Lbl S S => jump Lbl
+is_ne_exact Lbl C1=c C2=c => move C1 x | is_ne_exact Lbl x C2
+is_ne_exact Lbl C=c R=xy => is_ne_exact Lbl R C
+
 is_ne_exact Lbl R=xy C=ian => i_is_ne_exact_immed Lbl R C
 is_ne_exact Lbl R=xy C=q => i_is_ne_exact_literal Lbl R C
 
-i_is_eq_exact_immed f rxy c
+i_is_eq_exact_immed f? rxy c
 
-i_is_eq_exact_literal f xy c
+i_is_eq_exact_literal f? xy c
 
-i_is_ne_exact_immed f xy c
+i_is_ne_exact_immed f? xy c
 
-i_is_ne_exact_literal f xy c
+i_is_ne_exact_literal f? xy c
 
 is_eq_exact Lbl Y=y X=x => is_eq_exact Lbl X Y
-is_eq_exact f x xy
-is_eq_exact f s s
+is_eq_exact f? x xy
+is_eq_exact f? y y
 
-is_lt f x x
-is_lt f x c
-is_lt f c x
+is_ne_exact f? S S
+
+is_lt f? x x
+is_lt f? x c
+is_lt f? c x
 %cold
-is_lt f s s
+is_lt f? s s
 %hot
 
-is_ge f x x
-is_ge f x c
-is_ge f c x
+is_ge f? x x
+is_ge f? x c
+is_ge f? c x
 %cold
-is_ge f s s
+is_ge f? s s
 %hot
 
-is_ne_exact f s s
-
-is_eq f s s
+is_eq f? s s
 
-is_ne f s s
+is_ne f? s s
 
 #
 # Putting things.
@@ -515,6 +543,7 @@ put_list s s d
 # Some more only used by the emulator
 #
 
+%cold
 normal_exit
 continue_exit
 apply_bif
@@ -522,6 +551,7 @@ call_nif
 call_error_handler
 error_action_code
 return_trace
+%hot
 
 #
 # Instruction transformations & folded instructions.
@@ -554,7 +584,7 @@ is_tagged_tuple Fail Literal=q Arity Atom => \
     move Literal x | is_tagged_tuple Fail x Arity Atom
 is_tagged_tuple Fail=f c Arity Atom  => jump Fail
 
-is_tagged_tuple f rxy A a
+is_tagged_tuple f? rxy A a
 
 # Test tuple & arity (head)
 
@@ -562,14 +592,14 @@ is_tuple Fail Literal=q => move Literal x | is_tuple Fail x
 is_tuple Fail=f c => jump Fail
 is_tuple Fail=f S=xy | test_arity Fail=f S=xy Arity => is_tuple_of_arity Fail S Arity
 
-is_tuple_of_arity f rxy A
+is_tuple_of_arity f? rxy A
 
-is_tuple f rxy
+is_tuple f? rxy
 
 test_arity Fail Literal=q Arity => move Literal x | test_arity Fail x Arity
 test_arity Fail=f c Arity => jump Fail
 
-test_arity f xy A
+test_arity f? xy A
 
 get_tuple_element Reg=x P1 D1=x | get_tuple_element Reg=x P2 D2=x | \
    get_tuple_element Reg=x P3 D3=x | \
@@ -590,16 +620,16 @@ is_integer Fail Literal=q => move Literal x | is_integer Fail x
 
 is_integer Fail=f S=x | allocate Need Regs => is_integer_allocate Fail S Need Regs
 
-is_integer_allocate f x t t
+is_integer_allocate f? x t t
 
-is_integer f xy
+is_integer f? xy
 
 is_list Fail=f n =>
 is_list Fail Literal=q => move Literal x | is_list Fail x
 is_list Fail=f c => jump Fail
-is_list f x
+is_list f? x
 %cold
-is_list f y
+is_list f? y
 %hot
 
 is_nonempty_list Fail=f S=x | allocate Need Rs => is_nonempty_list_allocate Fail S Need Rs
@@ -609,21 +639,21 @@ is_nonempty_list F=f x==0 | test_heap I1 I2 => is_nonempty_list_test_heap F I1 I
 is_nonempty_list Fail=f S=x | get_list S D1=x D2=x => \
   is_nonempty_list_get_list Fail S D1 D2
 
-is_nonempty_list_allocate f rx t t
-is_nonempty_list_test_heap f I t
-is_nonempty_list_get_list f rx x x
-is_nonempty_list f xy
+is_nonempty_list_allocate f? rx t t
+is_nonempty_list_test_heap f? I t
+is_nonempty_list_get_list f? rx x x
+is_nonempty_list f? xy
 
-is_atom f x
+is_atom f? x
 %cold
-is_atom f y
+is_atom f? y
 %hot
 is_atom Fail=f a =>
 is_atom Fail=f niq => jump Fail
 
-is_float f x
+is_float f? x
 %cold
-is_float f y
+is_float f? y
 %hot
 is_float Fail=f nai => jump Fail
 is_float Fail Literal=q => move Literal x | is_float Fail x
@@ -631,13 +661,13 @@ is_float Fail Literal=q => move Literal x | is_float Fail x
 is_nil Fail=f n =>
 is_nil Fail=f qia => jump Fail
 
-is_nil f xy
+is_nil f? xy
 
 is_binary Fail Literal=q => move Literal x | is_binary Fail x
 is_binary Fail=f c => jump Fail
-is_binary f x
+is_binary f? x
 %cold
-is_binary f y
+is_binary f? y
 %hot
 
 # XXX Deprecated.
@@ -645,27 +675,27 @@ is_bitstr Fail Term => is_bitstring Fail Term
 
 is_bitstring Fail Literal=q => move Literal x | is_bitstring Fail x
 is_bitstring Fail=f c => jump Fail
-is_bitstring f x
+is_bitstring f? x
 %cold
-is_bitstring f y
+is_bitstring f? y
 %hot
 
 is_reference Fail=f cq => jump Fail
-is_reference f x
+is_reference f? x
 %cold
-is_reference f y
+is_reference f? y
 %hot
 
 is_pid Fail=f cq => jump Fail
-is_pid f x
+is_pid f? x
 %cold
-is_pid f y
+is_pid f? y
 %hot
 
 is_port Fail=f cq => jump Fail
-is_port f x
+is_port f? x
 %cold
-is_port f y
+is_port f? y
 %hot
 
 is_boolean Fail=f a==am_true =>
@@ -673,19 +703,19 @@ is_boolean Fail=f a==am_false =>
 is_boolean Fail=f ac => jump Fail
 
 %cold
-is_boolean f xy
+is_boolean f? xy
 %hot
 
 is_function2 Fail=f acq Arity => jump Fail
 is_function2 Fail=f Fun a => jump Fail
 
-is_function2 f s s
+is_function2 f? S s
 
 # Allocating & initializing.
 allocate Need Regs | init Y => allocate_init Need Regs Y
 init Y1 | init Y2 => init2 Y1 Y2
 
-allocate_init t t y
+allocate_init t t? y
 
 #################################################################
 # External function and bif calls.
@@ -932,16 +962,18 @@ call_ext_last Ar Func D => i_call_ext_last Func D
 call_ext_only Ar Func   => i_call_ext_only Func
 
 i_apply
-i_apply_last P
+i_apply_last Q
 i_apply_only
 
 i_apply_fun
-i_apply_fun_last P
+i_apply_fun_last Q
 i_apply_fun_only
 
+%cold
 i_hibernate
 
 i_perf_counter
+%hot
 
 call_bif e
 
@@ -973,13 +1005,13 @@ node y
 
 # Note: 'I' is sufficient because this instruction will only be used
 # if the arity fits in 24 bits.
-i_fast_element xy j I d
+i_fast_element xy j? I d
 
-i_element xy j s d
+i_element xy j? s d
 
-bif1 f b s d
+bif1 f? b s d
 bif1_body b s d
-i_bif2 f b s s d
+i_bif2 f? b s s d
 i_bif2_body b s s d
 
 #
@@ -1031,7 +1063,7 @@ make_fun2 OldIndex=u => gen_make_fun2(OldIndex)
 i_make_fun W t
 %hot
 
-is_function f xy
+is_function f? xy
 is_function Fail=f c => jump Fail
 
 func_info M F A => i_func_info u M F A
@@ -1040,16 +1072,16 @@ func_info M F A => i_func_info u M F A
 # New bit syntax matching (R11B).
 # ================================================================
 
-%cold
+%warm
 bs_start_match2 Fail=f ica X Y D => jump Fail
 bs_start_match2 Fail Bin X Y D => i_bs_start_match2 Bin Fail X Y D
-i_bs_start_match2 xy f I I x
+i_bs_start_match2 xy f t t x
 
 bs_save2 Reg Index => gen_bs_save(Reg, Index)
-i_bs_save2 x I
+i_bs_save2 x t
 
 bs_restore2 Reg Index => gen_bs_restore(Reg, Index)
-i_bs_restore2 x I
+i_bs_restore2 x t
 
 # Matching integers
 bs_match_string Fail Ms Bits Val => i_bs_match_string Ms Fail Bits Val
@@ -1060,24 +1092,24 @@ i_bs_match_string x f W W
 bs_get_integer2 Fail=f Ms=x Live=u Sz=sq Unit=u Flags=u Dst=d => \
 			gen_get_integer2(Fail, Ms, Live, Sz, Unit, Flags, Dst)
 
-i_bs_get_integer_small_imm x W f t x
-i_bs_get_integer_imm x W t f t x
-i_bs_get_integer f I I s s x
-i_bs_get_integer_8 x f x
-i_bs_get_integer_16 x f x
+i_bs_get_integer_small_imm x W f? t x
+i_bs_get_integer_imm x W t f? t x
+i_bs_get_integer f? t t x s x
+i_bs_get_integer_8 x f? x
+i_bs_get_integer_16 x f? x
 
 %if ARCH_64
-i_bs_get_integer_32 x f x
+i_bs_get_integer_32 x f? x
 %endif
 
 # Fetching binaries from binaries.
 bs_get_binary2 Fail=f Ms=x Live=u Sz=sq Unit=u Flags=u Dst=d => \
 			gen_get_binary2(Fail, Ms, Live, Sz, Unit, Flags, Dst)
 
-i_bs_get_binary_imm2 f x t W t x
-i_bs_get_binary2 f x I s I x
-i_bs_get_binary_all2 f x I I x
-i_bs_get_binary_all_reuse x f I
+i_bs_get_binary_imm2 f? x t W t x
+i_bs_get_binary2 f x t? s t x
+i_bs_get_binary_all2 f? x t t x
+i_bs_get_binary_all_reuse x f? t
 
 # Fetching float from binaries.
 bs_get_float2 Fail=f Ms=x Live=u Sz=s Unit=u Flags=u Dst=d => \
@@ -1085,29 +1117,32 @@ bs_get_float2 Fail=f Ms=x Live=u Sz=s Unit=u Flags=u Dst=d => \
 
 bs_get_float2 Fail=f Ms=x Live=u Sz=q Unit=u Flags=u Dst=d => jump Fail
 
-i_bs_get_float2 f x I s I x
+i_bs_get_float2 f? x t s t x
 
 # Miscellanous
 
 bs_skip_bits2 Fail=f Ms=x Sz=sq Unit=u Flags=u => \
 			gen_skip_bits2(Fail, Ms, Sz, Unit, Flags)
 
-i_bs_skip_bits_imm2 f x W
-i_bs_skip_bits2 f x xy I
-i_bs_skip_bits_all2 f x I
+i_bs_skip_bits_imm2 f? x W
+i_bs_skip_bits2 f? x xy t
+i_bs_skip_bits_all2 f? x t
 
 bs_test_tail2 Fail=f Ms=x Bits=u==0 => bs_test_zero_tail2 Fail Ms
 bs_test_tail2 Fail=f Ms=x Bits=u => bs_test_tail_imm2 Fail Ms Bits
-bs_test_zero_tail2 f x
-bs_test_tail_imm2 f x W
+bs_test_zero_tail2 f? x
+bs_test_tail_imm2 f? x W
 
 bs_test_unit F Ms Unit=u==8 => bs_test_unit8 F Ms
-bs_test_unit f x I
-bs_test_unit8 f x
+bs_test_unit f? x t
+bs_test_unit8 f? x
 
 # An y register operand for bs_context_to_binary is rare,
 # but can happen because of inlining.
 
+bs_context_to_binary Y=y | line L | badmatch Y => \
+    move Y x | bs_context_to_binary x | line L | badmatch x
+
 bs_context_to_binary Y=y => move Y x | bs_context_to_binary x
 
 bs_context_to_binary x
@@ -1116,14 +1151,14 @@ bs_context_to_binary x
 # Utf8/utf16/utf32 support. (R12B-5)
 #
 bs_get_utf8 Fail=f Ms=x u u Dst=d => i_bs_get_utf8 Ms Fail Dst
-i_bs_get_utf8 x f x
+i_bs_get_utf8 x f? x
 
 bs_skip_utf8 Fail=f Ms=x u u => i_bs_get_utf8 Ms Fail x
 
 bs_get_utf16 Fail=f Ms=x u Flags=u Dst=d => i_bs_get_utf16 Ms Fail Flags Dst
 bs_skip_utf16 Fail=f Ms=x u Flags=u => i_bs_get_utf16 Ms Fail Flags x
 
-i_bs_get_utf16 x f I x
+i_bs_get_utf16 x f? t x
 
 bs_get_utf32 Fail=f Ms=x Live=u Flags=u Dst=d => \
 	bs_get_integer2 Fail Ms Live i=32 u=1 Flags Dst | \
@@ -1132,13 +1167,13 @@ bs_skip_utf32 Fail=f Ms=x Live=u Flags=u => \
 	bs_get_integer2 Fail Ms Live i=32 u=1 Flags x | \
 	i_bs_validate_unicode_retract Fail x Ms
 
-i_bs_validate_unicode_retract j s s
+i_bs_validate_unicode_retract j s S
 %hot
 
 #
 # Constructing binaries
 #
-%cold
+%warm
 
 bs_init2 Fail Sz Words Regs Flags Dst | binary_too_big(Sz) => system_limit Fail
 
@@ -1152,13 +1187,13 @@ bs_init2 Fail Sz Words=u==0 Regs Flags Dst => \
 bs_init2 Fail Sz Words Regs Flags Dst => \
   i_bs_init_fail_heap Sz Words Fail Regs Dst
 
-i_bs_init_fail xy j t x
+i_bs_init_fail xy j? t? x
 
-i_bs_init_fail_heap s I j t x
+i_bs_init_fail_heap s I j? t? x
 
-i_bs_init W t x
+i_bs_init W t? x
 
-i_bs_init_heap W I t x
+i_bs_init_heap W I t? x
 
 
 bs_init_bits Fail Sz=o Words Regs Flags Dst => system_limit Fail
@@ -1171,16 +1206,16 @@ bs_init_bits Fail Sz Words=u==0 Regs Flags Dst => \
 bs_init_bits Fail Sz Words Regs Flags Dst => \
   i_bs_init_bits_fail_heap Sz Words Fail Regs Dst
 
-i_bs_init_bits_fail xy j t x
+i_bs_init_bits_fail xy j? t? x
 
-i_bs_init_bits_fail_heap s I j t x
+i_bs_init_bits_fail_heap s I j? t? x
 
-i_bs_init_bits W t x
-i_bs_init_bits_heap W I t x
+i_bs_init_bits W t? x
+i_bs_init_bits_heap W I t? x
 
 bs_add Fail S1=i==0 S2 Unit=u==1 D => move S2 D
 
-bs_add j s s t x
+bs_add j? s s t? x
 
 bs_append Fail Size Extra Live Unit Bin Flags Dst => \
   move Bin x | i_bs_append Fail Extra Live Unit Size Dst
@@ -1190,8 +1225,8 @@ bs_private_append Fail Size Unit Bin Flags Dst => \
 
 bs_init_writable
 
-i_bs_append j I t t s x
-i_bs_private_append j t s s x
+i_bs_append j? I t? t s x
+i_bs_private_append j? t s S x
 
 #
 # Storing integers into binaries.
@@ -1200,8 +1235,8 @@ i_bs_private_append j t s s x
 bs_put_integer Fail=j Sz=sq Unit=u Flags=u Src=s => \
 			gen_put_integer(Fail, Sz, Unit, Flags, Src)
 
-i_new_bs_put_integer j s t s
-i_new_bs_put_integer_imm j W t s
+i_new_bs_put_integer j? s t s
+i_new_bs_put_integer_imm j? W t s
 
 #
 # Utf8/utf16/utf32 support. (R12B-5)
@@ -1217,14 +1252,14 @@ i_bs_utf16_size s x
 
 bs_put_utf8 Fail u Src=s => i_bs_put_utf8 Fail Src
 
-i_bs_put_utf8 j s
+i_bs_put_utf8 j? s
 
-bs_put_utf16 j t s
+bs_put_utf16 j? t s
 
 bs_put_utf32 Fail=j Flags=u Src=s => \
    i_bs_validate_unicode Fail Src | bs_put_integer Fail i=32 u=1 Flags Src
 
-i_bs_validate_unicode j s
+i_bs_validate_unicode j? s
 
 #
 # Storing floats into binaries.
@@ -1234,8 +1269,8 @@ bs_put_float Fail Sz=q Unit Flags Val => badarg Fail
 bs_put_float Fail=j Sz=s Unit=u Flags=u Src=s => \
 			gen_put_float(Fail, Sz, Unit, Flags, Src)
 
-i_new_bs_put_float j s t s
-i_new_bs_put_float_imm j W t s
+i_new_bs_put_float j? s t s
+i_new_bs_put_float_imm j? W t s
 
 #
 # Storing binaries into binaries.
@@ -1244,9 +1279,9 @@ i_new_bs_put_float_imm j W t s
 bs_put_binary Fail=j Sz=s Unit=u Flags=u Src=s => \
 			gen_put_binary(Fail, Sz, Unit, Flags, Src)
 
-i_new_bs_put_binary j s t s
-i_new_bs_put_binary_imm j W s
-i_new_bs_put_binary_all j s t
+i_new_bs_put_binary j? s t s
+i_new_bs_put_binary_imm j? W s
+i_new_bs_put_binary_all j? s t
 
 #
 # Warning: The i_bs_put_string and i_new_bs_put_string instructions
@@ -1360,12 +1395,12 @@ new_map Dst Live Size Rest=* | is_small_map_literal_keys(Size, Rest) => \
 new_map d t I
 i_new_small_map_lit d t q
 update_map_assoc s d t I
-update_map_exact j s d t I
+update_map_exact j? s d t I
 
 is_map Fail Lit=q | literal_is_map(Lit) =>
 is_map Fail cq => jump Fail
 
-is_map f xy
+is_map f? xy
 
 ## Transform has_map_fields #{ K1 := _, K2 := _ } to has_map_elements
 
@@ -1379,14 +1414,14 @@ get_map_elements Fail Src=xy Size=u==2 Rest=* => \
 get_map_elements Fail Src Size Rest=* | map_key_sort(Size, Rest) => \
    gen_get_map_elements(Fail, Src, Size, Rest)
 
-i_get_map_elements f s I
+i_get_map_elements f? s I
 
 i_get_map_element Fail Src=xy Key=y Dst => \
     move Key x | i_get_map_element Fail Src x Dst
 
-i_get_map_element_hash f xy c I xy
+i_get_map_element_hash f? xy c I xy
 
-i_get_map_element f xy x xy
+i_get_map_element f? xy x xy
 
 #
 # Convert the plus operations to a generic plus instruction.
@@ -1454,30 +1489,32 @@ gc_bif1 Fail I u$bif:erlang:bnot/1 Src Dst=d => i_int_bnot Fail Src I Dst
 
 i_increment rxy W t d
 
-i_plus x xy j t d
-i_plus s s  j t d
+i_plus x xy j? t d
+i_plus s s  j? t d
+
+i_minus x x j? t d
+i_minus s s j? t d
 
-i_minus x x j t d
-i_minus s s j t d
+i_times j? t s s d
 
-i_times j t s s d
+i_m_div j? t s s d
+i_int_div j? t s s d
 
-i_m_div j t s s d
-i_int_div j t s s d
+i_rem x x j? t d
+i_rem s s j? t d
 
-i_rem x x j t d
-i_rem s s j t d
+i_bsl s s j? t d
+i_bsr s s j? t d
 
-i_bsl s s j t d
-i_bsr s s j t d
+i_band x c j? t d
+i_band s s j? t d
 
-i_band x c j t d
-i_band s s j t d
+i_bor j? I s s d
+i_bxor j? I s s d
 
-i_bor j I s s d
-i_bxor j I s s d
+i_int_bnot Fail Src=c Live Dst => move Src x | i_int_bnot Fail x Live Dst
 
-i_int_bnot j s t d
+i_int_bnot j? S t d
 
 #
 # Old guard BIFs that creates heap fragments are no longer allowed.
@@ -1501,9 +1538,9 @@ gc_bif2 Fail I Bif S1 S2 Dst => \
 gc_bif3 Fail I Bif S1 S2 S3 Dst => \
 	gen_guard_bif3(Fail, I, Bif, S1, S2, S3, Dst)
 
-i_gc_bif1 j W s t d
+i_gc_bif1 j? W s t? d
 
-i_gc_bif2 j W t s s d
+i_gc_bif2 j? W t? s s d
 
 ii_gc_bif3/7
 
@@ -1512,7 +1549,7 @@ ii_gc_bif3/7
 ii_gc_bif3 Fail Bif Live S1 S2 S3 Dst => \
   move S1 x | i_gc_bif3 Fail Bif Live S2 S3 Dst
 
-i_gc_bif3 j W t s s d
+i_gc_bif3 j? W t? s s d
 
 #
 # The following instruction is specially handled in beam_load.c
diff --git a/erts/emulator/beam/safe_hash.c b/erts/emulator/beam/safe_hash.c
index ac9ebd4714..73306030ae 100644
--- a/erts/emulator/beam/safe_hash.c
+++ b/erts/emulator/beam/safe_hash.c
@@ -260,16 +260,17 @@ void* safe_hash_erase(SafeHash* h, void* tmpl)
 }
 
 /*
-** Call 'func(obj,func_arg2)' for all objects in table. NOT SAFE!!!
+** Call 'func(obj,func_arg2,func_arg3)' for all objects in table. NOT SAFE!!!
 */
-void safe_hash_for_each(SafeHash* h, void (*func)(void *, void *), void *func_arg2)
+void safe_hash_for_each(SafeHash* h, void (*func)(void *, void *, void *),
+                        void *func_arg2, void *func_arg3)
 {
     int i;
 
     for (i = 0; i <= h->size_mask; i++) {
 	SafeHashBucket* b = h->tab[i];
 	while (b != NULL) {
-	    (*func)((void *) b, func_arg2);
+	    (*func)((void *) b, func_arg2, func_arg3);
 	    b = b->next;
 	}
     }
diff --git a/erts/emulator/beam/safe_hash.h b/erts/emulator/beam/safe_hash.h
index 259c58cff9..af97b4cb4d 100644
--- a/erts/emulator/beam/safe_hash.h
+++ b/erts/emulator/beam/safe_hash.h
@@ -95,7 +95,7 @@ void* safe_hash_get(SafeHash*, void*);
 void* safe_hash_put(SafeHash*, void*);
 void* safe_hash_erase(SafeHash*, void*);
 
-void  safe_hash_for_each(SafeHash*, void (*func)(void *, void *), void *);
+void  safe_hash_for_each(SafeHash*, void (*func)(void *, void *, void *), void *, void *);
 
 #ifdef ERTS_ENABLE_LOCK_COUNT
 void erts_lcnt_enable_hash_lock_count(SafeHash*, erts_lock_flags_t, int);
diff --git a/erts/emulator/beam/select_instrs.tab b/erts/emulator/beam/select_instrs.tab
index e85ed2c304..2951949d38 100644
--- a/erts/emulator/beam/select_instrs.tab
+++ b/erts/emulator/beam/select_instrs.tab
@@ -30,16 +30,15 @@ select_val_bins.fetch(Src) {
 }
 
 select_val_bins.select(Fail, NumElements) {
-    struct Pairs {
+    struct Singleton {
         BeamInstr val;
-        BeamInstr* addr;
     };
-    struct Pairs* low;
-    struct Pairs* high;
-    struct Pairs* mid;
+    struct Singleton* low;
+    struct Singleton* high;
+    struct Singleton* mid;
     int bdiff; /* int not long because the arrays aren't that large */
 
-    low = (struct Pairs *) (&$NumElements + 1);
+    low = (struct Singleton *) ($NEXT_INSTRUCTION);
     high = low + $NumElements;
 
     /* The pointer subtraction (high-low) below must produce
@@ -60,80 +59,73 @@ select_val_bins.select(Fail, NumElements) {
      *
      */
     while ((bdiff = (int)((char*)high - (char*)low)) > 0) {
-        unsigned int boffset = ((unsigned int)bdiff >> 1) & ~(sizeof(struct Pairs)-1);
+        unsigned int boffset = ((unsigned int)bdiff >> 1) & ~(sizeof(struct Singleton)-1);
 
-        mid = (struct Pairs*)((char*)low + boffset);
+        mid = (struct Singleton*)((char*)low + boffset);
         if (select_val < mid->val) {
             high = mid;
         } else if (select_val > mid->val) {
             low = mid + 1;
         } else {
-            $NEXT(mid->addr);
+            Sint32* jump_tab = (Sint32 *) ($NEXT_INSTRUCTION + $NumElements);
+            Sint32 offset = jump_tab[mid - (struct Singleton *)($NEXT_INSTRUCTION)];
+            $JUMP(offset);
         }
     }
-    $NEXT($Fail);
+    $JUMP($Fail);
 }
 
-i_select_tuple_arity2 := select_val2.src.ta_fail.execute;
-i_select_val2 := select_val2.src.fail.execute;
+i_select_tuple_arity2 := select_val2.src.get_arity.execute;
+i_select_val2 := select_val2.src.execute;
 
 select_val2.head() {
     Eterm select_val2;
-    BeamInstr* select_fail;
 }
 
 select_val2.src(Src) {
     select_val2 = $Src;
 }
 
-select_val2.ta_fail(Fail) {
-    select_fail = &$Fail;
-    if (is_not_tuple(select_val2)) {
-        $FAIL(*select_fail);
+select_val2.get_arity() {
+    if (ERTS_LIKELY(is_tuple(select_val2))) {
+        select_val2 = *tuple_val(select_val2);
+    } else {
+        select_val2 = NIL;
     }
-    select_val2 = *tuple_val(select_val2);
 }
 
-select_val2.fail(Fail) {
-    select_fail = &$Fail;
-}
+select_val2.execute(Fail, T1, T2) {
+    Sint32* jump_tab = (Sint32 *) ($NEXT_INSTRUCTION);
 
-select_val2.execute(T1, T2, D1, D2) {
     if (select_val2 == $T1) {
-        $JUMP($D1);
+        $JUMP(jump_tab[0]);
     } else if (select_val2 == $T2) {
-        $JUMP($D2);
+        $JUMP(jump_tab[1]);
     } else {
-        $FAIL(*select_fail);
+        $FAIL($Fail);
     }
 }
 
-i_select_tuple_arity := select_val_lin.fetch.ta_fail.execute;
-i_select_val_lins := select_val_lin.fetch.fail.execute;
+i_select_tuple_arity := select_val_lin.fetch.get_arity.execute;
+i_select_val_lins := select_val_lin.fetch.execute;
 
 select_val_lin.head() {
     Eterm select_val;
-    BeamInstr* select_fail;
 }
 
 select_val_lin.fetch(Src) {
     select_val = $Src;
 }
 
-select_val_lin.ta_fail(Fail) {
-    select_fail = &$Fail;
-    if (is_tuple(select_val)) {
+select_val_lin.get_arity() {
+    if (ERTS_LIKELY(is_tuple(select_val))) {
         select_val = *tuple_val(select_val);
     } else {
-        $JUMP(*select_fail);
+        select_val = NIL;
     }
 }
 
-select_val_lin.fail(Fail) {
-    select_fail = &$Fail;
-}
-
-select_val_lin.execute(N) {
+select_val_lin.execute(Fail, N) {
     BeamInstr* vs = $NEXT_INSTRUCTION;
     int ix = 0;
 
@@ -150,10 +142,11 @@ select_val_lin.execute(N) {
     }
 
     if (vs[ix] == select_val) {
-        I = $NEXT_INSTRUCTION + $N + ix;
-        $JUMP(*I);
+        Sint32* jump_tab = (Sint32 *) ($NEXT_INSTRUCTION + $N);
+        Eterm offset = jump_tab[ix];
+        $JUMP(offset);
     } else {
-        $JUMP(*select_fail);
+        $JUMP($Fail);
     }
 }
 
@@ -161,7 +154,8 @@ JUMP_ON_VAL(Fail, Index, N, Base) {
     if (is_small($Index)) {
         $Index = (Uint) (signed_val($Index) - $Base);
         if ($Index < $N) {
-            $JUMP((($NEXT_INSTRUCTION)[$Index]));
+            Sint32* jump_tab = (Sint32 *) ($NEXT_INSTRUCTION);
+            $JUMP(jump_tab[$Index]);
         }
     }
     $FAIL($Fail);
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 615f44364b..bf7d310568 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -575,8 +575,6 @@ __decl_noreturn void __noreturn erts_exit(int n, char*, ...);
     erts_exit(ERTS_ABORT_EXIT, "%s:%d:%s(): Internal error: %s\n", \
 	     __FILE__, __LINE__, __func__, What)
 
-Eterm erts_check_io_info(void *p);
-
 UWord erts_sys_get_page_size(void);
 
 /* Size of misc memory allocated from system dependent code */
@@ -739,8 +737,6 @@ extern char *erts_sys_ddll_error(int code);
 /*
  * System interfaces for startup.
  */
-void erts_sys_schedule_interrupt(int set);
-void erts_sys_schedule_interrupt_timed(int, ErtsMonotonicTime);
 void erts_sys_main_thread(void);
 
 extern int erts_sys_prepare_crash_dump(int secs);
@@ -757,10 +753,6 @@ Preload* sys_preloaded(void);
 unsigned char* sys_preload_begin(Preload*);
 void sys_preload_end(Preload*);
 int sys_get_key(int);
-void elapsed_time_both(ErtsMonotonicTime *ms_user, ErtsMonotonicTime *ms_sys, 
-		       ErtsMonotonicTime *ms_user_diff, ErtsMonotonicTime *ms_sys_diff);
-void wall_clock_elapsed_time_both(ErtsMonotonicTime *ms_total, 
-				  ErtsMonotonicTime *ms_diff);
 void get_time(int *hour, int *minute, int *second);
 void get_date(int *year, int *month, int *day);
 void get_localtime(int *year, int *month, int *day, 
@@ -798,7 +790,7 @@ void fini_getenv_state(GETENV_STATE *);
 typedef struct {
     int no_used_fds;
     int no_driver_select_structs;
-    int no_driver_event_structs;
+    int no_enif_select_structs;
 } ErtsCheckIoDebugInfo;
 int erts_check_io_debug(ErtsCheckIoDebugInfo *ip);
 
@@ -832,11 +824,16 @@ int erts_sys_unsetenv(char *key);
 char *erts_read_env(char *key);
 void erts_free_read_env(void *value);
 
-#if defined(ERTS_THR_HAVE_SIG_FUNCS) && !defined(ETHR_UNUSABLE_SIGUSRX)
+#if defined(ERTS_THR_HAVE_SIG_FUNCS) &&                         \
+    (!defined(ETHR_UNUSABLE_SIGUSRX) || defined(SIGRTMIN))
 extern void sys_thr_resume(erts_tid_t tid);
 extern void sys_thr_suspend(erts_tid_t tid);
-#define ERTS_SYS_SUSPEND_SIGNAL SIGUSR2
-#endif
+#ifdef SIGRTMIN
+#define ERTS_SYS_SUSPEND_SIGNAL (SIGRTMIN+1)
+#else
+#define ERTS_SYS_SUSPEND_SIGNAL (SIGUSR2)
+#endif /* SIGRTMIN */
+#endif /* HAVE_SIG_FUNCS */
 
 /* utils.c */
 
@@ -1000,10 +997,6 @@ erts_refc_read(erts_refc_t *refcp, erts_aint_t min_val)
 
 #endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
 
-#ifdef ERTS_ENABLE_KERNEL_POLL
-extern int erts_use_kernel_poll;
-#endif
-
 #define sys_memcpy(s1,s2,n)  memcpy(s1,s2,n)
 #define sys_memmove(s1,s2,n) memmove(s1,s2,n)
 #define sys_memcmp(s1,s2,n)  memcmp(s1,s2,n)
@@ -1109,6 +1102,14 @@ void erl_bin_write(unsigned char *, int, int);
 #  define DEBUGF(x)
 #endif
 
+#ifndef MAX
+#define MAX(A, B) ((A) > (B) ? (A) : (B))
+#endif
+
+#ifndef MIN
+#define MIN(A, B) ((A) < (B) ? (A) : (B))
+#endif
+
 #ifdef __WIN32__
 #ifdef ARCH_64
 #define ERTS_ALLOC_ALIGN_BYTES 16
@@ -1174,4 +1175,52 @@ int erts_get_printable_characters(void);
 
 void erts_init_sys_common_misc(void);
 
+ERTS_GLB_INLINE Sint erts_raw_env_7bit_ascii_char_need(int encoding);
+ERTS_GLB_INLINE byte *erts_raw_env_7bit_ascii_char_put(byte c, byte *p,
+                                                       int encoding);
+ERTS_GLB_INLINE int  erts_raw_env_char_is_7bit_ascii_char(byte c, byte *p,
+                                                          int encoding);
+ERTS_GLB_INLINE byte *erts_raw_env_next_char(byte *p, int encoding);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE Sint
+erts_raw_env_7bit_ascii_char_need(int encoding)
+{
+    return (encoding == ERL_FILENAME_WIN_WCHAR) ? 2 : 1;
+}
+
+ERTS_GLB_INLINE byte *
+erts_raw_env_7bit_ascii_char_put(byte c,
+                                 byte *p,
+                                 int encoding)
+{
+    *(p++) = c;
+    if (encoding == ERL_FILENAME_WIN_WCHAR)
+        *(p++) = 0;
+    return p;
+}
+
+ERTS_GLB_INLINE int
+erts_raw_env_char_is_7bit_ascii_char(byte c,
+                                     byte *p,
+                                     int encoding)
+{
+    if (encoding == ERL_FILENAME_WIN_WCHAR)
+        return (p[0] == c) & (p[1] == 0);
+    else
+        return p[0] == c;
+}
+
+ERTS_GLB_INLINE byte *
+erts_raw_env_next_char(byte *p, int encoding)
+{
+    if (encoding == ERL_FILENAME_WIN_WCHAR)
+        return p + 2;
+    else
+        return p + 1;
+}
+
+#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
 #endif
diff --git a/erts/emulator/beam/trace_instrs.tab b/erts/emulator/beam/trace_instrs.tab
index dfd1d16d58..3eee81c053 100644
--- a/erts/emulator/beam/trace_instrs.tab
+++ b/erts/emulator/beam/trace_instrs.tab
@@ -61,12 +61,12 @@ i_return_to_trace() {
         Uint *cpp = (Uint*) E;
         for(;;) {
             ASSERT(is_CP(*cpp));
-            if (*cp_val(*cpp) == (BeamInstr) OpCode(return_trace)) {
+            if (IsOpCode(*cp_val(*cpp), return_trace)) {
                 do
                     ++cpp;
                 while (is_not_CP(*cpp));
                 cpp += 2;
-            } else if (*cp_val(*cpp) == (BeamInstr) OpCode(i_return_to_trace)) {
+            } else if (IsOpCode(*cp_val(*cpp), i_return_to_trace)) {
                 do
                     ++cpp;
                 while (is_not_CP(*cpp));
@@ -94,7 +94,7 @@ i_yield() {
     c_p->arg_reg[0] = am_true;
     c_p->arity = 1; /* One living register (the 'true' return value) */
     SWAPOUT;
-    c_p->i = $NEXT_INSTRUCTION;
+    $SET_CP_I_ABS($NEXT_INSTRUCTION);
     c_p->current = NULL;
     goto do_schedule;
     //| -no_next
@@ -102,7 +102,7 @@ i_yield() {
 
 i_hibernate() {
     HEAVY_SWAPOUT;
-    if (erts_hibernate(c_p, r(0), x(1), x(2), reg)) {
+    if (erts_hibernate(c_p, reg)) {
         FCALLS = c_p->fcalls;
         c_p->flags &= ~F_HIBERNATE_SCHED;
         goto do_schedule;
@@ -153,3 +153,16 @@ i_debug_breakpoint() {
     goto handle_error;
     //| -no_next
 }
+
+
+
+//
+// Special jump instruction used for tracing. Takes an absolute
+// failure address.
+//
+
+trace_jump(Fail) {
+    //| -no_next
+    SET_I((BeamInstr *) $Fail);
+    Goto(*I);
+}
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index d93c232d66..993585be10 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -51,6 +51,7 @@
 #include "erl_ptab.h"
 #include "erl_check_io.h"
 #include "erl_bif_unique.h"
+#include "erl_io_queue.h"
 #define ERTS_WANT_TIMER_WHEEL_API
 #include "erl_time.h"
 #ifdef HIPE
diff --git a/erts/emulator/drivers/common/efile_drv.c b/erts/emulator/drivers/common/efile_drv.c
index a1b15a2199..4e1d2f0d7f 100644
--- a/erts/emulator/drivers/common/efile_drv.c
+++ b/erts/emulator/drivers/common/efile_drv.c
@@ -1261,6 +1261,50 @@ static void free_read_line(void *data)
     EF_FREE(d);
 }
 
+void read_file_zero_size(struct t_data* d);
+#define ZERO_FILE_CHUNK (64 * 1024)
+
+/* [ERL-327] Some special files like /proc/... have reported size 0 */
+void read_file_zero_size(struct t_data* d) {
+    size_t total_read_size = 0;
+    size_t allocated_size = ZERO_FILE_CHUNK; /* allocd in invoke_read_file */
+    for (;;) {
+        size_t read_result;
+
+        /* Read until we hit EOF (read less than FILE_SEGMENT_READ) */
+        d->result_ok = efile_read(&d->errInfo,
+                                  EFILE_MODE_READ,
+                                  (int) d->fd,
+                                  (d->c.read_file.binp->orig_bytes +
+                                   total_read_size),
+                                  ZERO_FILE_CHUNK,
+                                  &read_result);
+        if (!d->result_ok) {
+            break;
+        }
+
+        total_read_size += read_result;
+        d->c.read_file.offset += read_result;
+        if (read_result < ZERO_FILE_CHUNK) {
+            break;
+        }
+
+        /* Grow before the next read call */
+        allocated_size = total_read_size + ZERO_FILE_CHUNK;
+        d->c.read_file.binp = driver_realloc_binary(d->c.read_file.binp,
+                                                    allocated_size);
+    }
+
+    /* Finalize the memory usage. Hopefully it was read fully on the first
+     * go, so the binary allocation overhead becomes:
+     * alloc ZERO_FILE_CHUNK (64kb) -> realloc real_size */
+    if (allocated_size != total_read_size) {
+        d->c.read_file.binp = driver_realloc_binary(d->c.read_file.binp,
+                                                    total_read_size);
+    }
+    d->again = 0;
+}
+
 static void invoke_read_file(void *data)
 {
     struct t_data *d = (struct t_data *) data;
@@ -1279,9 +1323,15 @@ static void invoke_read_file(void *data)
 	}
 	d->fd = fd;
 	d->c.read_file.size = (int) size;
-	if (size < 0 || size != d->c.read_file.size ||
-	    ! (d->c.read_file.binp = 
-	       driver_alloc_binary(d->c.read_file.size))) {
+
+        /* For zero sized files allocate a reasonable chunk to attempt reading
+         * anyway. Note: This will eat ZERO_FILE_CHUNK bytes for any 0 file
+         * and free them immediately after (if the file was empty). */
+        ERTS_ASSERT(size >= 0);
+        d->c.read_file.binp = driver_alloc_binary(size != 0 ? (size_t)size
+                                                            : ZERO_FILE_CHUNK);
+
+	if (size < 0 || size != d->c.read_file.size || !d->c.read_file.binp) {
 	    d->result_ok = 0;
 	    d->errInfo.posix_errno = ENOMEM;
 	    goto close;
@@ -1290,6 +1340,11 @@ static void invoke_read_file(void *data)
     }
     /* Invariant: d->c.read_file.size >= d->c.read_file.offset */
     
+    if (d->c.read_file.size == 0) {
+        read_file_zero_size(d);
+        goto close;
+    }
+
     read_size = (size_t) (d->c.read_file.size - d->c.read_file.offset);
     if (! read_size) goto close;
     chop = d->again && read_size >= FILE_SEGMENT_READ*2;
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index 7b1f4a0e9c..554c48059f 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -2199,13 +2199,16 @@ static int inet_reply_ok(inet_descriptor* desc)
     ErlDrvTermData caller = desc->caller;
     int i = 0;
     
+    desc->caller = 0;
+    if (is_not_internal_pid(caller))
+        return 0;
+
     i = LOAD_ATOM(spec, i, am_inet_reply);
     i = LOAD_PORT(spec, i, desc->dport);
     i = LOAD_ATOM(spec, i, am_ok);
     i = LOAD_TUPLE(spec, i, 3);
     ASSERT(i == sizeof(spec)/sizeof(*spec));
     
-    desc->caller = 0;
     return erl_drv_send_term(desc->dport, caller, spec, i);    
 }
 
diff --git a/erts/emulator/drivers/common/zlib_drv.c b/erts/emulator/drivers/common/zlib_drv.c
deleted file mode 100644
index e342e414b5..0000000000
--- a/erts/emulator/drivers/common/zlib_drv.c
+++ /dev/null
@@ -1,792 +0,0 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 2003-2017. All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * %CopyrightEnd%
- */
-
-/*
- * ZLib interface for erlang
- *
- */
-#ifdef HAVE_CONFIG_H
-#  include "config.h"
-#endif
-#include <stdio.h>
-#include <zlib.h>
-#include <errno.h>
-#include <string.h>
-
-#include "erl_driver.h"
-
-
-#define DEFLATE_INIT    1
-#define DEFLATE_INIT2   2
-#define DEFLATE_SETDICT 3
-#define DEFLATE_RESET   4
-#define DEFLATE_END     5
-#define DEFLATE_PARAMS  6
-#define DEFLATE         7
-
-#define INFLATE_INIT    8
-#define INFLATE_INIT2   9
-#define INFLATE_SETDICT 10
-#define INFLATE_GETDICT 11
-#define INFLATE_SYNC    12
-#define INFLATE_RESET   13
-#define INFLATE_END     14
-#define INFLATE         15
-
-#define CRC32_0         16
-#define CRC32_1         17
-#define CRC32_2         18
-
-#define SET_BUFSZ       19
-#define GET_BUFSZ       20
-#define GET_QSIZE       21
-
-#define ADLER32_1       22
-#define ADLER32_2       23
-
-#define CRC32_COMBINE   24
-#define ADLER32_COMBINE 25
-
-#define INFLATE_CHUNK   26
-
-
-#define DEFAULT_BUFSZ   4000
-
-/* According to zlib documentation, it can never exceed this */
-#define INFL_DICT_SZ    32768
-
-/* This flag is used in the same places, where zlib return codes
- * (Z_OK, Z_STREAM_END, Z_NEED_DICT) are. So, we need to set it to
- * relatively large value to avoid possible value clashes in future.
- * */
-#define INFLATE_HAS_MORE 100
-
-static int zlib_init(void);
-static ErlDrvData zlib_start(ErlDrvPort port, char* buf);
-static void zlib_stop(ErlDrvData e);
-static void zlib_flush(ErlDrvData e);
-static ErlDrvSSizeT zlib_ctl(ErlDrvData drv_data, unsigned int command, char *buf,
-			     ErlDrvSizeT len, char **rbuf, ErlDrvSizeT rlen);
-static void zlib_outputv(ErlDrvData drv_data, ErlIOVec *ev);
-
-ErlDrvEntry zlib_driver_entry = {
-    zlib_init,
-    zlib_start,
-    zlib_stop,
-    NULL,                           /* output */
-    NULL,                           /* ready_input */
-    NULL,                           /* ready_output */
-    "zlib_drv",
-    NULL,                           /* finish */
-    NULL,                           /* handle */
-    zlib_ctl,
-    NULL,                           /* timeout */
-    zlib_outputv,
-    NULL,                           /* read_async */
-    zlib_flush,
-    NULL,                           /* call */
-    NULL,                           /* event */
-    ERL_DRV_EXTENDED_MARKER,
-    ERL_DRV_EXTENDED_MAJOR_VERSION,
-    ERL_DRV_EXTENDED_MINOR_VERSION,
-    ERL_DRV_FLAG_USE_PORT_LOCKING,
-    NULL,                           /* handle2 */
-    NULL,                           /* process_exit */
-};
-
-typedef enum {
-    ST_NONE    = 0,
-    ST_DEFLATE = 1,
-    ST_INFLATE = 2
-} ZLibState;
-
-
-typedef struct {
-    z_stream s;
-    ZLibState state;
-    ErlDrvBinary* bin;
-    int binsz;
-    int binsz_need;
-    uLong crc;
-    int inflate_eos_seen;
-    int want_crc;       /* 1 if crc is calculated on clear text */
-    ErlDrvPort port;    /* the associcated port */
-} ZLibData;
-
-static int zlib_inflate(ZLibData* d, int flush);
-static int zlib_deflate(ZLibData* d, int flush);
-
-#if defined(__WIN32__)
-static int i32(char* buf)
-#else
-static __inline__ int i32(char* buf)
-#endif
-{
-    return (int) (
-		  (((int)((unsigned char*)buf)[0]) << 24) |
-		  (((int)((unsigned char*)buf)[1]) << 16) |
-		  (((int)((unsigned char*)buf)[2]) << 8) |
-		  (((int)((unsigned char*)buf)[3]) << 0));
-}
-
-static char* zlib_reason(int code, int* err)
-{
-    switch(code) {
-    case Z_OK:
-	*err = 0;
-	return "ok";
-    case Z_STREAM_END:
-	*err = 0;
-	return "stream_end"; 
-    case Z_ERRNO:
-	*err = 1;
-	return erl_errno_id(errno);
-    case Z_STREAM_ERROR:
-	*err = 1;
-	return "stream_error";
-    case Z_DATA_ERROR:
-	*err = 1;
-	return "data_error";
-    case Z_MEM_ERROR:
-	*err = 1;
-	return "mem_error";
-    case Z_BUF_ERROR:
-	*err = 1;
-	return "buf_error";
-    case Z_VERSION_ERROR:
-	*err = 1;
-	return "version_error";
-    default:
-	*err = 1;
-	return "unknown_error";
-    }
-}
-
-
-static ErlDrvSSizeT zlib_return(int code, char** rbuf, ErlDrvSizeT rlen)
-{
-    int msg_code = 0; /* 0=ok, 1=error */
-    char* dst = *rbuf;
-    char* src;
-    ErlDrvSizeT len = 0;
-
-    src = zlib_reason(code, &msg_code);
-    *dst++ = msg_code;
-    rlen--;
-    len = 1;
-
-    while((rlen > 0) && *src) {
-	*dst++ = *src++;
-	rlen--;
-	len++;
-    }
-    return len;
-}
-
-static ErlDrvSSizeT zlib_value2(int msg_code, int value,
-				char** rbuf, ErlDrvSizeT rlen)
-{
-    char* dst = *rbuf;
-
-    if (rlen  < 5) {
-	return -1;
-    }
-    *dst++ = msg_code;
-    *dst++ = (value >> 24) & 0xff;
-    *dst++ = (value >> 16) & 0xff;
-    *dst++ = (value >> 8) & 0xff;
-    *dst++ = value & 0xff;
-    return 5;
-}
-
-static ErlDrvSSizeT zlib_value(int value, char** rbuf, ErlDrvSizeT rlen)
-{
-    return zlib_value2(2, value, rbuf, rlen);
-}
-
-static int zlib_output_init(ZLibData* d)
-{
-    if (d->bin != NULL)
-	driver_free_binary(d->bin);
-    if ((d->bin = driver_alloc_binary(d->binsz_need)) == NULL)
-	return -1;
-    d->binsz = d->binsz_need;
-    d->s.next_out = (unsigned char*)d->bin->orig_bytes;
-    d->s.avail_out = d->binsz;
-    return 0;
-}
-
-/*
- * Send compressed or uncompressed data
- * and restart output procesing
- */
-static int zlib_output(ZLibData* d)
-{
-    if (d->bin != NULL) {
-	int len = d->binsz - d->s.avail_out;
-	if (len > 0) {
-	    if (driver_output_binary(d->port, NULL, 0, d->bin, 0, len) < 0) 
-		return -1;
-	}
-	driver_free_binary(d->bin);
-	d->bin = NULL;
-	d->binsz = 0;
-    }
-    return zlib_output_init(d);
-}
-
-static int zlib_inflate_get_dictionary(ZLibData* d)
-{
-#ifdef HAVE_ZLIB_INFLATEGETDICTIONARY
-    ErlDrvBinary* dbin = driver_alloc_binary(INFL_DICT_SZ);
-    uInt dlen = 0;
-    int res = inflateGetDictionary(&d->s, (unsigned char*)dbin->orig_bytes, &dlen);
-    if ((res == Z_OK) && (driver_output_binary(d->port, NULL, 0, dbin, 0, dlen) < 0)) {
-        res = Z_ERRNO;
-    }
-    driver_free_binary(dbin);
-    return res;
-#else
-    abort(); /* never called, just to silence 'unresolved symbol'
-                for non-optimizing compiler */
-#endif
-}
-
-static int zlib_inflate(ZLibData* d, int flush)
-{
-    int res = Z_OK;
-
-    if ((d->bin == NULL) && (zlib_output_init(d) < 0)) {
-	errno = ENOMEM;
-	return Z_ERRNO;
-    }
-
-    while ((driver_sizeq(d->port) > 0) && (res != Z_STREAM_END)) {
-	int vlen;
-	SysIOVec* iov = driver_peekq(d->port, &vlen);
-	int len;
-	int possibly_more_output = 0;
-
-	d->s.next_in = iov[0].iov_base;
-	d->s.avail_in = iov[0].iov_len;
-	while((possibly_more_output || (d->s.avail_in > 0)) && (res != Z_STREAM_END)) {
-	    res = inflate(&d->s, Z_NO_FLUSH);
-	    if (res == Z_NEED_DICT) {
-		/* Essential to eat the header bytes that zlib has looked at */
-		len = iov[0].iov_len - d->s.avail_in;
-		driver_deq(d->port, len);
-		return res;
-	    }
-	    if (res == Z_BUF_ERROR) {
-		/* Was possible more output, but actually not */
-		res = Z_OK;
-	    }
-	    else if (res < 0) {
-		return res;
-	    }
-	    if (d->s.avail_out != 0) {
-		possibly_more_output = 0;
-	    } else {
-		if (d->want_crc)
-		    d->crc = crc32(d->crc, (unsigned char*)d->bin->orig_bytes,
-				   d->binsz - d->s.avail_out);
-		zlib_output(d);
-		possibly_more_output = 1;
-	    }
-	}
-	len = iov[0].iov_len - d->s.avail_in;
-	driver_deq(d->port, len);
-    }
-
-    if (d->want_crc) {
-       d->crc = crc32(d->crc, (unsigned char*) d->bin->orig_bytes,
-		      d->binsz - d->s.avail_out);
-    }
-    zlib_output(d);
-    if (res == Z_STREAM_END) {       
-       d->inflate_eos_seen = 1;
-    }
-    return res;
-}
-
-static int zlib_inflate_chunk(ZLibData* d)
-{
-    int res = Z_OK;
-
-    if ((d->bin == NULL) && (zlib_output_init(d) < 0)) {
-	errno = ENOMEM;
-	return Z_ERRNO;
-    }
-
-    while ((driver_sizeq(d->port) > 0) && (d->s.avail_out > 0) &&
-           (res != Z_STREAM_END)) {
-	int vlen;
-	SysIOVec* iov = driver_peekq(d->port, &vlen);
-	int len;
-
-	d->s.next_in = iov[0].iov_base;
-	d->s.avail_in = iov[0].iov_len;
-	while((d->s.avail_in > 0) && (d->s.avail_out > 0) && (res != Z_STREAM_END)) {
-	    res = inflate(&d->s, Z_NO_FLUSH);
-	    if (res == Z_NEED_DICT) {
-		/* Essential to eat the header bytes that zlib has looked at */
-		len = iov[0].iov_len - d->s.avail_in;
-		driver_deq(d->port, len);
-		return res;
-	    }
-	    if (res == Z_BUF_ERROR) {
-		/* Was possible more output, but actually not */
-		res = Z_OK;
-	    }
-	    else if (res < 0) {
-		return res;
-	    }
-	}
-	len = iov[0].iov_len - d->s.avail_in;
-	driver_deq(d->port, len);
-    }
-
-    /* We are here because all input was consumed or EOS reached or output
-     * buffer is full */
-    if (d->want_crc) {
-       d->crc = crc32(d->crc, (unsigned char*) d->bin->orig_bytes,
-		      d->binsz - d->s.avail_out);
-    }
-    zlib_output(d);
-    if ((res == Z_OK) && (d->s.avail_in > 0))
-       res = INFLATE_HAS_MORE;
-    else if (res == Z_STREAM_END) {
-       d->inflate_eos_seen = 1;
-    }
-    return res;
-}
-
-static int zlib_deflate(ZLibData* d, int flush)
-{
-    int res = Z_OK;
-
-    if ((d->bin == NULL) && (zlib_output_init(d) < 0)) {
-	errno = ENOMEM;
-	return Z_ERRNO;
-    }
-
-    while ((driver_sizeq(d->port) > 0) && (res != Z_STREAM_END)) {
-	int vlen;
-	SysIOVec* iov = driver_peekq(d->port, &vlen);
-	int len;
-
-	d->s.next_in = iov[0].iov_base;
-	d->s.avail_in = iov[0].iov_len;
-
-	while((d->s.avail_in > 0) && (res != Z_STREAM_END)) {
-	    if ((res = deflate(&d->s, Z_NO_FLUSH)) < 0) {
-		return res;
-	    }
-	    if (d->s.avail_out == 0) {
-		zlib_output(d);
-	    }
-	}
-	len = iov[0].iov_len - d->s.avail_in;
-	if (d->want_crc) {
-	    d->crc = crc32(d->crc, iov[0].iov_base, len);
-	}
-	driver_deq(d->port, len);
-    }
-
-    if (flush != Z_NO_FLUSH) {
-	if ((res = deflate(&d->s, flush)) < 0) {
-	    return res;
-	}
-	if (flush == Z_FINISH) {
-	    while (d->s.avail_out < d->binsz) {
-		zlib_output(d);
-		if (res == Z_STREAM_END) {
-		    break;
-		}
-		if ((res = deflate(&d->s, flush)) < 0) {
-		    return res;
-		}
-	    }
-	} else {
-	    while (d->s.avail_out == 0) {
-	       zlib_output(d);
-	       if ((res = deflate(&d->s, flush)) < 0) {
-		  return res;
-	       }
-	    }
-	    if (d->s.avail_out < d->binsz) {
-	       zlib_output(d);
-	    }
-	}
-    }
-    return res;
-}
-
-
-
-static void* zlib_alloc(void* data, unsigned int items, unsigned int size)
-{
-    return (void*) driver_alloc(items*size);
-}
-
-static void zlib_free(void* data, void* addr)
-{
-    driver_free(addr);
-}
-
-#if defined(__APPLE__) && defined(__MACH__) && defined(HAVE_ZLIB_INFLATEGETDICTIONARY)
-
-/* Work around broken build system with runtime version test */
-static int have_inflateGetDictionary;
-
-static int zlib_init()
-{
-    unsigned int v[4] = {0, 0, 0, 0};
-    unsigned hexver;
-
-    sscanf(zlibVersion(), "%u.%u.%u.%u", &v[0], &v[1], &v[2], &v[3]);
-
-    hexver = (v[0] << (8*3)) | (v[1] << (8*2)) | (v[2] << (8)) | v[3];
-
-    have_inflateGetDictionary = (hexver >= 0x1020701); /* 1.2.7.1 */
-
-    return 0;
-}
-#else /* trust configure got it right */
-#  ifdef HAVE_ZLIB_INFLATEGETDICTIONARY
-#    define have_inflateGetDictionary 1
-#  else
-#    define have_inflateGetDictionary 0
-#  endif
-static int zlib_init()
-{
-    return 0;
-}
-#endif
-
-static ErlDrvData zlib_start(ErlDrvPort port, char* buf)
-{
-    ZLibData* d;
-
-    if ((d = (ZLibData*) driver_alloc(sizeof(ZLibData))) == NULL)
-        return ERL_DRV_ERROR_GENERAL;
-
-    memset(&d->s, 0, sizeof(z_stream));
-
-    d->s.zalloc = zlib_alloc;
-    d->s.zfree  = zlib_free;
-    d->s.opaque = d;
-    d->s.data_type = Z_BINARY;
-
-    d->port      = port;
-    d->state     = ST_NONE;
-    d->bin       = NULL;
-    d->binsz     = 0;
-    d->binsz_need = DEFAULT_BUFSZ;
-    d->crc       = crc32(0L, Z_NULL, 0);
-    d->inflate_eos_seen = 0;
-    d->want_crc  = 0;
-    return (ErlDrvData)d;
-}
-
-
-static void zlib_stop(ErlDrvData e)
-{
-    ZLibData* d = (ZLibData*)e;
-
-    if (d->state == ST_DEFLATE)
-	deflateEnd(&d->s);
-    else if (d->state == ST_INFLATE)
-	inflateEnd(&d->s);
-
-    if (d->bin != NULL)
-	driver_free_binary(d->bin);
-
-    driver_free(d);
-}
-
-static void zlib_flush(ErlDrvData drv_data)
-{
-    ZLibData* d = (ZLibData*) drv_data;
-
-    driver_deq(d->port, driver_sizeq(d->port));
-}
-
-static ErlDrvSSizeT zlib_ctl(ErlDrvData drv_data, unsigned int command, char *buf,
-			     ErlDrvSizeT len, char **rbuf, ErlDrvSizeT rlen)
-{
-    ZLibData* d = (ZLibData*)drv_data;
-    int res;
-
-    switch(command) {
-    case DEFLATE_INIT:
-	if (len != 4) goto badarg;
-	if (d->state != ST_NONE) goto badarg;
-	res = deflateInit(&d->s, i32(buf));
-	if (res == Z_OK) {
-	    d->state = ST_DEFLATE;
-	    d->want_crc = 0;
-	    d->crc = crc32(0L, Z_NULL, 0);
-	}
-	return zlib_return(res, rbuf, rlen);
-
-    case DEFLATE_INIT2: {
-	int wbits;
-
-	if (len != 20) goto badarg;
-	if (d->state != ST_NONE) goto badarg;
-	wbits = i32(buf+8);
-	res = deflateInit2(&d->s, i32(buf), i32(buf+4), wbits, 
-			   i32(buf+12), i32(buf+16));
-	if (res == Z_OK) {
-	    d->state = ST_DEFLATE;
-	    d->want_crc = (wbits < 0);
-	    d->crc = crc32(0L, Z_NULL, 0);
-	}
-	return zlib_return(res, rbuf, rlen);
-    }
-	
-    case DEFLATE_SETDICT:
-	if (d->state != ST_DEFLATE) goto badarg;
-	res = deflateSetDictionary(&d->s, (unsigned char*)buf, len);
-	if (res == Z_OK) {
-	    return zlib_value(d->s.adler, rbuf, rlen);
-	} else {
-	    return zlib_return(res, rbuf, rlen);
-	}
-
-    case DEFLATE_RESET:
-	if (len != 0) goto badarg;
-	if (d->state != ST_DEFLATE) goto badarg;
-	driver_deq(d->port, driver_sizeq(d->port));
-	res = deflateReset(&d->s);
-	return zlib_return(res, rbuf, rlen);	
-	
-    case DEFLATE_END:
-	if (len != 0) goto badarg;
-	if (d->state != ST_DEFLATE) goto badarg;
-	driver_deq(d->port, driver_sizeq(d->port));
-	res = deflateEnd(&d->s);
-	d->state = ST_NONE;
-	return zlib_return(res, rbuf, rlen);
-
-    case DEFLATE_PARAMS:
-	if (len != 8) goto badarg;
-	if (d->state != ST_DEFLATE) goto badarg;
-	res = deflateParams(&d->s, i32(buf), i32(buf+4));
-	return zlib_return(res, rbuf, rlen);
-
-    case DEFLATE:
-	if (d->state != ST_DEFLATE) goto badarg;
-	if (len != 4) goto badarg;
-	res = zlib_deflate(d, i32(buf));
-	return zlib_return(res, rbuf, rlen);
-
-    case INFLATE_INIT:
-	if (len != 0) goto badarg;
-	if (d->state != ST_NONE) goto badarg;
-	res = inflateInit(&d->s);
-	if (res == Z_OK) {
-	    d->state = ST_INFLATE;
-	    d->inflate_eos_seen = 0;
-	    d->want_crc = 0;
-	    d->crc = crc32(0L, Z_NULL, 0);
-	}
-	return zlib_return(res, rbuf, rlen);	
-	
-    case INFLATE_INIT2: {
-	int wbits;
-
-	if (len != 4) goto badarg;	
-	if (d->state != ST_NONE) goto badarg;
-	wbits = i32(buf);
-	res = inflateInit2(&d->s, wbits);
-	if (res == Z_OK) {
-	    d->state = ST_INFLATE;
-	    d->inflate_eos_seen = 0;
-	    d->want_crc = (wbits < 0);
-	    d->crc = crc32(0L, Z_NULL, 0);
-	}
-	return zlib_return(res, rbuf, rlen);
-    }
-	
-    case INFLATE_SETDICT:
-	if (d->state != ST_INFLATE) goto badarg;
-	res = inflateSetDictionary(&d->s, (unsigned char*)buf, len);
-	return zlib_return(res, rbuf, rlen);
-
-    case INFLATE_GETDICT:
-        if (have_inflateGetDictionary) {
-            if (d->state != ST_INFLATE) goto badarg;
-            res = zlib_inflate_get_dictionary(d);
-        } else {
-            errno = ENOTSUP;
-            res = Z_ERRNO;
-        }
-        return zlib_return(res, rbuf, rlen);
-
-    case INFLATE_SYNC:
-	if (d->state != ST_INFLATE) goto badarg;
-	if (len != 0) goto badarg;
-	if (driver_sizeq(d->port) == 0) {
-	    res = Z_BUF_ERROR;
-	} else {
-	    int vlen;
-	    SysIOVec* iov = driver_peekq(d->port, &vlen);
-
-	    d->s.next_in = iov[0].iov_base;
-	    d->s.avail_in = iov[0].iov_len;
-	    res = inflateSync(&d->s);
-	}
-	return zlib_return(res, rbuf, rlen);
-
-    case INFLATE_RESET:
-	if (d->state != ST_INFLATE) goto badarg;
-	if (len != 0) goto badarg;
-	driver_deq(d->port, driver_sizeq(d->port));
-	res = inflateReset(&d->s);
-	d->inflate_eos_seen = 0;
-	return zlib_return(res, rbuf, rlen);
-
-    case INFLATE_END:
-	if (d->state != ST_INFLATE) goto badarg;
-	if (len != 0) goto badarg;
-	driver_deq(d->port, driver_sizeq(d->port));
-	res = inflateEnd(&d->s);
-	if (res == Z_OK && d->inflate_eos_seen == 0) {
-	    res = Z_DATA_ERROR;
-	}
-	d->state = ST_NONE;
-	return zlib_return(res, rbuf, rlen);
-
-    case INFLATE:
-	if (d->state != ST_INFLATE) goto badarg;
-	if (len != 4) goto badarg;
-	res = zlib_inflate(d, i32(buf));
-	if (res == Z_NEED_DICT) {
-	    return zlib_value2(3, d->s.adler, rbuf, rlen);
-	} else {
-	    return zlib_return(res, rbuf, rlen);
-	}
-
-    case INFLATE_CHUNK:
-	if (d->state != ST_INFLATE) goto badarg;
-	if (len != 0) goto badarg;
-	res = zlib_inflate_chunk(d);
-	if (res == INFLATE_HAS_MORE) {
-	    return zlib_value2(4, 0, rbuf, rlen);
-	} else if (res == Z_NEED_DICT) {
-	    return zlib_value2(3, d->s.adler, rbuf, rlen);
-	} else {
-	    return zlib_return(res, rbuf, rlen);
-	}
-
-    case GET_QSIZE:
-	return zlib_value(driver_sizeq(d->port), rbuf, rlen);
-
-    case GET_BUFSZ:
-	return zlib_value(d->binsz_need, rbuf, rlen);
-
-    case SET_BUFSZ: {
-	int need;
-	if (len != 4) goto badarg;
-	need = i32(buf);
-	if ((need < 16) || (need > 0x00ffffff))
-	    goto badarg;
-	if (d->binsz_need != need) {
-	    d->binsz_need = need;
-	    if (d->bin != NULL) {
-		if (d->s.avail_out == d->binsz) {
-		    driver_free_binary(d->bin);
-		    d->bin = NULL;
-		    d->binsz = 0;
-		}
-		else
-		    zlib_output(d);
-	    }
-	}
-	return zlib_return(Z_OK, rbuf, rlen);
-    }
-
-    case CRC32_0:
-	return zlib_value(d->crc, rbuf, rlen);
-
-    case CRC32_1: {
-	uLong crc = crc32(0L, Z_NULL, 0);
-	crc = crc32(crc, (unsigned char*) buf, len);
-	return zlib_value(crc, rbuf, rlen);
-    }
-	
-    case CRC32_2: {
-	uLong crc;
-	if (len < 4) goto badarg;
-	crc = (unsigned int) i32(buf);
-	crc = crc32(crc, (unsigned char*) buf+4, len-4);
-	return zlib_value(crc, rbuf, rlen);
-    }
-
-    case ADLER32_1: {
-	uLong adler = adler32(0L, Z_NULL, 0);
-	adler = adler32(adler, (unsigned char*) buf, len);
-	return zlib_value(adler, rbuf, rlen);
-    }
-	
-    case ADLER32_2: {
-       uLong adler;
-       if (len < 4) goto badarg;
-       adler = (unsigned int) i32(buf);
-       adler = adler32(adler, (unsigned char*) buf+4, len-4);
-       return zlib_value(adler, rbuf, rlen);
-    }
-
-    case CRC32_COMBINE: {
-       uLong crc, crc1, crc2, len2;
-       if (len != 12) goto badarg;
-       crc1 = (unsigned int) i32(buf);
-       crc2 = (unsigned int) i32(buf+4);
-       len2 = (unsigned int) i32(buf+8);
-       crc = crc32_combine(crc1, crc2, len2);
-       return zlib_value(crc, rbuf, rlen);
-    }
-
-    case ADLER32_COMBINE: {
-       uLong adler, adler1, adler2, len2;
-       if (len != 12) goto badarg;
-       adler1 = (unsigned int) i32(buf);
-       adler2 = (unsigned int) i32(buf+4);
-       len2   = (unsigned int) i32(buf+8);
-       adler  = adler32_combine(adler1, adler2, len2);
-       return zlib_value(adler, rbuf, rlen);
-    }       
-    }
-
- badarg:
-    errno = EINVAL;
-    return zlib_return(Z_ERRNO, rbuf, rlen);
-}
-
-
-
-static void zlib_outputv(ErlDrvData drv_data, ErlIOVec *ev)
-{
-    ZLibData* d = (ZLibData*) drv_data;
-
-    driver_enqv(d->port, ev, 0);
-}
diff --git a/erts/emulator/drivers/unix/ttsl_drv.c b/erts/emulator/drivers/unix/ttsl_drv.c
index f3c1aa1c4a..7355df6059 100644
--- a/erts/emulator/drivers/unix/ttsl_drv.c
+++ b/erts/emulator/drivers/unix/ttsl_drv.c
@@ -892,8 +892,8 @@ static void ttysl_from_tty(ErlDrvData ttysl_data, ErlDrvEvent fd)
 		tpos = 0;
 	    }
 	}
-    } else {
-        DEBUGLOG(("ttysl_from_tty: driver failure in read(%d,..) = %d\n", (int)(SWord)fd, i)); 
+    } else if (errno != EAGAIN && errno != EWOULDBLOCK) {
+        DEBUGLOG(("ttysl_from_tty: driver failure in read(%d,..) = %d (errno = %d)\n", (int)(SWord)fd, i, errno));
 	driver_failure(ttysl_port, -1);
     }
 }
@@ -936,10 +936,10 @@ static int put_chars(byte *s, int l)
     int n;
 
     n = insert_buf(s, l);
+    if (lpos > llen)
+        llen = lpos;
     if (n > 0)
       write_buf(lbuf + lpos - n, n);
-    if (lpos > llen)
-      llen = lpos;
     return TRUE;
 }
 
@@ -1016,7 +1016,7 @@ static int del_chars(int n)
 	   outc(' ');
 	   move_left(1);
 	}
-	move_cursor(llen + l, lpos);
+	move_cursor(llen + gcs, lpos);
     }
     else if (pos < lpos) {
 	l = lpos - pos;		/* Buffer characters */
@@ -1036,7 +1036,7 @@ static int del_chars(int n)
           outc(' ');
           move_left(1);
 	}
-        move_cursor(llen + l, lpos);
+        move_cursor(llen + gcs, lpos);
     }
     return TRUE;
 }
@@ -1095,6 +1095,7 @@ static int insert_buf(byte *s, int n)
 		ch = 0;
 	    } while (lpos % 8);
 	} else if (ch == '\e') {
+	    DEBUGLOG(("insert_buf: ANSI Escape: \\e"));
 	    lbuf[lpos++] = (CONTROL_TAG | ((Uint32) ch));
 	} else if (ch == '\n' || ch == '\r') {
 	    write_buf(lbuf + buffpos, lpos - buffpos);
@@ -1156,7 +1157,7 @@ static int write_buf(Uint32 *s, int n)
 		--n; s++;
 	    }
 	} else if (*s == (CONTROL_TAG | ((Uint32) '\e'))) {
-	    outc('\e');
+	    outc(lastput = '\e');
 	    --n;
 	    ++s;
 	} else if (*s & CONTROL_TAG) {
@@ -1251,26 +1252,63 @@ static int move_cursor(int from_pos, int to_pos)
     return to_col-from_col;
 }
 
-static int cp_pos_to_col(int cp_pos)
+/*
+ * Returns the length of an ANSI escape code in a buffer, this function only consider
+ * color escape sequences like `\e[33m` or `\e[21;33m`. If a sequence has no valid
+ * terminator, the length is equal the number of characters between `\e` and the first
+ * invalid character, inclusive.
+ */
+
+static int ansi_escape_width(Uint32 *s, int max_length)
 {
-#ifdef HAVE_WCWIDTH
     int i;
-    int col = 0;
-
-    for (i = 0; i < cp_pos; i++) {
-        int w = wcwidth(lbuf[i]);
-        if (w > 0) {
-            col += w;
-        }
+    
+    if (*s != (CONTROL_TAG | ((Uint32) '\e'))) {
+       return 0;
+    } else if (max_length <= 1) {
+       return 1;
+    } else if (s[1] != '[') {
+       return 2;
     }
-    return col;
-#else
+    
+    for (i = 2; i < max_length && (s[i] == ';' || (s[i] >= '0' && s[i] <= '9')); i++);
+
+    return i + 1;
+}
+
+static int cp_pos_to_col(int cp_pos)
+{
     /*
-     * We dont' have any character width information. Assume that
-     * code points are one column wide.
+     * If we don't have any character width information. Assume that
+     * code points are one column wide
      */
-    return cp_pos;
+    int w = 1;
+    int col = 0;
+    int i = 0;
+    int j;
+
+    if (cp_pos > llen) {
+        col += cp_pos - llen;
+        cp_pos = llen;
+    }
+
+    while (i < cp_pos) {
+       j = ansi_escape_width(lbuf + i, llen - i);
+
+       if (j > 0) {
+           i += j;
+       } else {
+#ifdef HAVE_WCWIDTH
+           w = wcwidth(lbuf[i]);
 #endif
+           if (w > 0) {
+              col += w;
+           }
+           i++;
+       }
+    }
+
+    return col;    
 }
 
 static int start_termcap(void)
diff --git a/erts/emulator/hipe/hipe_bif0.c b/erts/emulator/hipe/hipe_bif0.c
index 05663648e9..380031bf13 100644
--- a/erts/emulator/hipe/hipe_bif0.c
+++ b/erts/emulator/hipe/hipe_bif0.c
@@ -53,8 +53,6 @@
 #include "hipe_literals.h"
 #endif
 
-#define BeamOpCode(Op)	((Uint)BeamOp(Op))
-
 
 int term_to_Sint32(Eterm term, Sint *sp)
 {
@@ -615,7 +613,7 @@ static ErtsCodeInfo* hipe_find_emu_address(Eterm mod, Eterm name, unsigned int a
     n = code_hdr->num_functions;
     for (i = 0; i < n; ++i) {
 	ErtsCodeInfo *ci = code_hdr->functions[i];
-	ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI));
+	ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI));
 	if (ci->mfa.function == name && ci->mfa.arity == arity)
 	    return ci;
     }
diff --git a/erts/emulator/hipe/hipe_bif1.c b/erts/emulator/hipe/hipe_bif1.c
index 3d3df4fd48..73d07f0ce5 100644
--- a/erts/emulator/hipe/hipe_bif1.c
+++ b/erts/emulator/hipe/hipe_bif1.c
@@ -32,11 +32,10 @@
 #include "big.h"
 #include "error.h"
 #include "beam_load.h"
+#include "erl_vm.h"
 #include "hipe_bif0.h"
 #include "hipe_bif1.h"
 
-#define BeamOpCode(Op)	((Uint)BeamOp(Op))
-
 BIF_RETTYPE hipe_bifs_call_count_on_1(BIF_ALIST_1)
 {
     ErtsCodeInfo *ci;
@@ -46,17 +45,17 @@ BIF_RETTYPE hipe_bifs_call_count_on_1(BIF_ALIST_1)
     ci = hipe_bifs_find_pc_from_mfa(BIF_ARG_1);
     if (!ci)
 	BIF_ERROR(BIF_P, BADARG);
-    ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI));
+    ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI));
     pc = erts_codeinfo_to_code(ci);
-    if (pc[0] == BeamOpCode(op_hipe_trap_call))
+    if (BeamIsOpCode(pc[0], op_hipe_trap_call))
 	BIF_ERROR(BIF_P, BADARG);
-    if (pc[0] == BeamOpCode(op_hipe_call_count))
+    if (BeamIsOpCode(pc[0], op_hipe_call_count))
 	BIF_RET(NIL);
     hcc = erts_alloc(ERTS_ALC_T_HIPE_SL, sizeof(*hcc));
     hcc->count = 0;
     hcc->opcode = pc[0];
     ci->u.hcc = hcc;
-    pc[0] = BeamOpCode(op_hipe_call_count);
+    pc[0] = BeamOpCodeAddr(op_hipe_call_count);
     BIF_RET(am_true);
 }
 
@@ -70,9 +69,9 @@ BIF_RETTYPE hipe_bifs_call_count_off_1(BIF_ALIST_1)
     ci = hipe_bifs_find_pc_from_mfa(BIF_ARG_1);
     if (!ci)
 	BIF_ERROR(BIF_P, BADARG);
-    ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI));
+    ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI));
     pc = erts_codeinfo_to_code(ci);
-    if (pc[0] != BeamOpCode(op_hipe_call_count))
+    if (! BeamIsOpCode(pc[0], op_hipe_call_count))
 	BIF_RET(am_false);
     hcc = ci->u.hcc;
     count = hcc->count;
@@ -91,9 +90,9 @@ BIF_RETTYPE hipe_bifs_call_count_get_1(BIF_ALIST_1)
     ci = hipe_bifs_find_pc_from_mfa(BIF_ARG_1);
     if (!ci)
 	BIF_ERROR(BIF_P, BADARG);
-    ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI));
+    ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI));
     pc = erts_codeinfo_to_code(ci);
-    if (pc[0] != BeamOpCode(op_hipe_call_count))
+    if (! BeamIsOpCode(pc[0], op_hipe_call_count))
 	BIF_RET(am_false);
     hcc = ci->u.hcc;
     BIF_RET(make_small(hcc->count));
@@ -109,9 +108,9 @@ BIF_RETTYPE hipe_bifs_call_count_clear_1(BIF_ALIST_1)
     ci = hipe_bifs_find_pc_from_mfa(BIF_ARG_1);
     if (!ci)
 	BIF_ERROR(BIF_P, BADARG);
-    ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI));
+    ASSERT(BeamIsOpCode(ci->op, op_i_func_info_IaaI));
     pc = erts_codeinfo_to_code(ci);
-    if (pc[0] != BeamOpCode(op_hipe_call_count))
+    if (! BeamIsOpCode(pc[0], op_hipe_call_count))
 	BIF_RET(am_false);
     hcc = ci->u.hcc;
     count = hcc->count;
diff --git a/erts/emulator/hipe/hipe_instrs.tab b/erts/emulator/hipe/hipe_instrs.tab
index bcce196a1d..a01baebddf 100644
--- a/erts/emulator/hipe/hipe_instrs.tab
+++ b/erts/emulator/hipe/hipe_instrs.tab
@@ -45,7 +45,7 @@ hipe_trap.call() {
      * ... remainder of original BEAM code
      */
     ErtsCodeInfo *ci = erts_code_to_codeinfo(I);
-    ASSERT(ci->op == (Uint) OpCode(i_func_info_IaaI));
+    ASSERT(IsOpCode(ci->op, i_func_info_IaaI));
     c_p->hipe.u.ncallee = ci->u.ncallee;
     ++hipe_trap_count;
     $HIPE_MODE_SWITCH(HIPE_MODE_SWITCH_CMD_CALL | (ci->mfa.arity << 8));
@@ -53,7 +53,7 @@ hipe_trap.call() {
 
 hipe_trap.call_closure() {
     ErtsCodeInfo *ci = erts_code_to_codeinfo(I);
-    ASSERT(ci->op == (Uint) OpCode(i_func_info_IaaI));
+    ASSERT(IsOpCode(ci->op, i_func_info_IaaI));
     c_p->hipe.u.ncallee = ci->u.ncallee;
     ++hipe_trap_count;
     $HIPE_MODE_SWITCH(HIPE_MODE_SWITCH_CMD_CALL_CLOSURE | (ci->mfa.arity << 8));
@@ -132,7 +132,7 @@ hipe_call_count() {
      */
     ErtsCodeInfo *ci = erts_code_to_codeinfo(I);
     struct hipe_call_count *hcc = ci->u.hcc;
-    ASSERT(ci->op == (Uint) OpCode(i_func_info_IaaI));
+    ASSERT(IsOpCode(ci->op, i_func_info_IaaI));
     ASSERT(hcc != NULL);
     ASSERT(VALID_INSTR(hcc->opcode));
     ++(hcc->count);
diff --git a/erts/emulator/hipe/hipe_mode_switch.c b/erts/emulator/hipe/hipe_mode_switch.c
index b7f81fc4a6..8b497c9970 100644
--- a/erts/emulator/hipe/hipe_mode_switch.c
+++ b/erts/emulator/hipe/hipe_mode_switch.c
@@ -155,8 +155,6 @@ void hipe_check_pcb(Process *p, const char *file, unsigned line)
 #include "hipe_arm_glue.h"
 #endif
 
-#define BeamOpCode(Op)		((Uint)BeamOp(Op))
-
 Uint hipe_beam_pc_return[1];	/* needed in hipe_debug.c */
 Uint hipe_beam_pc_throw[1];	/* needed in hipe_debug.c */
 Uint hipe_beam_pc_resume[1];	/* needed by hipe_set_timeout() */
@@ -166,9 +164,9 @@ void hipe_mode_switch_init(void)
 {
     hipe_arch_glue_init();
 
-    hipe_beam_pc_return[0] = BeamOpCode(op_hipe_trap_return);
-    hipe_beam_pc_throw[0] = BeamOpCode(op_hipe_trap_throw);
-    hipe_beam_pc_resume[0] = BeamOpCode(op_hipe_trap_resume);
+    hipe_beam_pc_return[0] = BeamOpCodeAddr(op_hipe_trap_return);
+    hipe_beam_pc_throw[0] = BeamOpCodeAddr(op_hipe_trap_throw);
+    hipe_beam_pc_resume[0] = BeamOpCodeAddr(op_hipe_trap_resume);
 
     hipe_beam_catch_throw =
 	make_catch(beam_catches_cons(hipe_beam_pc_throw, BEAM_CATCHES_NIL));
@@ -182,8 +180,8 @@ void hipe_set_call_trap(ErtsCodeInfo* ci, void *nfun, int is_closure)
     HIPE_ASSERT(ci->op == BeamOpCode(op_i_func_info_IaaI));
     bfun[0] =
 	is_closure
-	? BeamOpCode(op_hipe_trap_call_closure)
-	: BeamOpCode(op_hipe_trap_call);
+	? BeamOpCodeAddr(op_hipe_trap_call_closure)
+	: BeamOpCodeAddr(op_hipe_trap_call);
     ci->u.ncallee = (void (*)(void)) nfun;
 }
 
diff --git a/erts/emulator/hipe/hipe_ops.tab b/erts/emulator/hipe/hipe_ops.tab
index 96e4c0da91..19a3820a6a 100644
--- a/erts/emulator/hipe/hipe_ops.tab
+++ b/erts/emulator/hipe/hipe_ops.tab
@@ -23,4 +23,7 @@ hipe_trap_call_closure
 hipe_trap_return
 hipe_trap_throw
 hipe_trap_resume
+
+%cold
 hipe_call_count
+%hot
diff --git a/erts/emulator/internal_doc/GarbageCollection.md b/erts/emulator/internal_doc/GarbageCollection.md
new file mode 100644
index 0000000000..1d9e3f4160
--- /dev/null
+++ b/erts/emulator/internal_doc/GarbageCollection.md
@@ -0,0 +1,187 @@
+# Erlang Garbage Collector
+
+Erlang manages dynamic memory with a [tracing garbage collector](https://en.wikipedia.org/wiki/Tracing_garbage_collection). More precisely a per process generational semi-space copying collector using [Cheney's](#cheney) copy collection algorithm together with a global large object space.
+
+## Overview
+
+Each Erlang process has its own stack and heap which are allocated in the same memory block and grow towards each other. When the stack and the heap [meet](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/beam_emu.c#L387), the garbage collector is triggered and memory is reclaimed. If not enough memory was reclaimed, the heap will grow.
+
+### Creating Data
+
+Terms are created on the heap by evaluating expressions. There are two major types of terms: [immediate terms](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_term.h#L88-L97) which require no heap space (small integers, atoms, pids, port ids etc) and cons or [boxed terms](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_term.h#L106-L120) (tuple, big num, binaries etc) that do require heap space. Immediate terms do not need any heap space because they are embedded into the containing structure.
+
+Let's look at an example that returns a tuple with the newly created data.
+
+```erlang
+data(Foo) ->
+   Cons = [42|Foo],
+   Literal = {text, "hello world!"},
+   {tag, Cons, Literal}.
+```
+
+In this example we first create a new cons cell with an integer and a tuple with some text. Then a tuple of size three wrapping the other values with an atom tag is created and returned.
+
+On the heap tuples require a word size for each of its elements as well as for the header. Cons cells always require two words. Adding these things together, we get seven words for the tuples and 26 words for the cons cells. The string `"hello world!"` is a list of cons cells and thus requires 24 words. The atom `tag` and the integer `42` do not require any additional heap memory since it is an *immediate*. Adding all the terms together, the heap space required in this example should be 33 words.
+
+Compiling this code to beam assembly (`erlc -S`) shows exactly what is happening.
+
+```erlang
+    ...
+    {test_heap,6,1}.
+    {put_list,{integer,42},{x,0},{x,1}}.
+    {put_tuple,3,{x,0}}.
+    {put,{atom,tag}}.
+    {put,{x,1}}.
+    {put,{literal,{text,"hello world!"}}}.
+    return.
+```
+
+Looking at the assembler code we can see three things; The heap requirement in this function turns out to be only six words, as seen by the `{test_heap,6,1}` instruction. All the allocations are combined to a single instruction. The bulk of the data `{text, "hello world!"}` is a *literal*. Literals, sometimes referred to as constants, are not allocated in the function since they are a part of the module and allocated at load time.
+
+If there is not enough space available on the heap to satisfy the `test_heap` instructions request for memory, then a garbage collection is initiated. It may happen immediately in the `test_heap` instruction, or it can be delayed until a later time depending on what state the process is in. If the garbage collection is delayed, any memory needed will be allocated in heap fragments. Heap fragments are extra memory blocks that are a part of the young heap, but are not allocated in the contigious area where terms normally reside. See [The young heap](#the-young-heap) for more details.
+
+### The collector
+
+Erlang has a copying semi-space garbage collector. This means that when doing a garbage collection, the terms are copied from one distinct area, called the *from space*, to a new clean area, called the *to space*. The collector starts by [scanning the root-set](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1980) (stack, registers, etc).
+
+![Garbage collection: initial values](figures/gc-start.png)
+
+It follows all the pointers from the root-set to the heap and copies each term word by word to the *to space*.
+
+After the header word has been copied a [*move marker*](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.h#L45-L46) is destructively placed in it pointing to the term in the *to space*. Any other term that points to the already moved term will [see this move marker](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1125) and copy the referring pointer instead. For example, if the have the following Erlang code:
+
+```erlang
+foo(Arg) ->
+    T = {test, Arg},
+    {wrapper, T, T, T}.
+```
+
+Only one copy of T exists on the heap and during the garbage collection only the first time T is encountered will it be copied.
+
+![Garbage collection: root set scan](figures/gc-rootset-scan.png)
+
+After [all terms](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1089) referenced by the root-set have been copied, the collector scans the *to space* and copies all terms that these terms reference. When scanning, the collector steps through each term on the *to space* and any term still referencing the *from space* is copied over to the *to space*. Some terms contain non-term data (the payload of a on heap binary for instance). When encountered by the collector, these values are simply skipped.
+
+![Garbage collection: heap scan](figures/gc-heap-scan1.png)
+
+Every term object we can reach is copied to the *to space* and stored on top off the *scan stop* line, and then the scan stop is moved to the end of the last object.
+
+![Garbage collection: heap scan](figures/gc-heap-stop.png)
+
+When *scan stop* marker [catches up](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1103) to the *scan start* marker, the garbage collection is done. At this point we can [deallocate](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1206) the entire *from space* and therefore reclaim the entire young heap.
+
+## Generational Garbage Collection
+
+In addition to the collection algorithm described above, the Erlang garbage collector also provides generational garbage collection. An additional heap, called the old heap, is used where the long lived data is stored. The original heap is called the young heap, or sometimes the allocation heap.
+
+With this in mind we can look at the Erlang's garbage collection again. During the copy stage anything that should be copied to the young *to space* is instead copied to the old *to space* *if* it is [below the *high-watermark*](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L1127).
+
+![Garbage collection: heap scan](figures/gc-watermark.png)
+
+The [*high-watermark*](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_process.h#L1021) is placed where the previous garbage collection (described in [Overview](#overview)) ended and we have introduced a new area called the old heap. When doing the normal garbage collection pass, any term that is located below the high-watermark is copied to the old *to space* instead of the young.
+
+![Garbage collection: heap scan](figures/gc-watermark-2.png)
+
+In the next garbage collection, any pointers to the old heap will be ignored and not scanned. This way the garbage collector does not have to scan the long-lived terms.
+
+Generational garbage collection aims to increase performance at the expense of memory. This is achieved because only the young, smaller, heap is considered in most garbage collections.
+
+The generational [hypothesis](#ungar) predicts that most terms tend to die young, and for an immutable language such as Erlang, young terms die even faster than in other languages. So for most usage patterns the data in the new heap will die very soon after it is allocated. This is good because it limits the amount of data copied to the old heap and also because the garbage collection algorithm used is proportional to the amount of live data on the heap.
+
+One critical issue to note here is that any term on the young heap can reference terms on the old heap but *no* term on the old heap may refer to a term on the young heap. This is due to the nature of the copy algorithm. Anything referenced by an old heap term is not included in the reference tree, root-set and its followers, and hence is not copied. If it was, the data would be lost, fire and brimstone would rise to cover the earth. Fortunately, this comes naturally for Erlang because the terms are immutable and thus there can be no pointers modified on the old heap to point to the young heap.
+
+To reclaim data from the old heap, both young and old heaps are included during the collection and copied to a common *to space*. Both the *from space* of the young and old heap are then deallocated and the procedure will start over from the beginning. This type of garbage collection is called a full sweep and is triggered when the size of the area under the high-watermark is larger than the size of the free area of the old heap. It can also be triggered by doing a manual call to [erlang:garbage_collect()](http://erlang.org/doc/man/erlang.html#garbage_collect-0), or by running into the young garbage collection limit set by [spawn_opt(fun(),[{fullsweep_after, N}])](http://erlang.org/doc/man/erlang.html#spawn_opt-4) where N is the number of young garbage collections to do before forcing a garbage collection of both young and old heap.
+
+## The young heap
+
+The young heap, or the allocation heap, consists of the stack and heap as described in the Overview. However, it also includes any heap fragments that are attached to the heap. All of the heap fragments are considered to be above the high-watermark and part of the young generation. Heap fragments contain terms that either did not fit on the heap, or were created by another process and then attached to the heap. For instance if the bif binary_to_term created a term which does not fit on the current heap without doing a garbage collection, it will create a heap-fragment for the term and then schedule a garbage collection for later. Also if a message is sent to the process, the payload may be placed in a heap-fragment and that fragment is added to young heap when the message is matched in a receive clause.
+
+This procedure differs from how it worked prior to Erlang/OTP 19.0. Before 19.0, only a contiguous memory block where the young heap and stack resided was considered to be part of the young heap. Heap fragments and messages were immediately copied into the young heap before they could be inspected by the Erlang program. The behaviour introduced in 19.0 is superior in many ways - most significantly it reduces the number of necessary copy operations and the root set for garbage collection.
+
+## Sizing the heap
+
+As mentioned in the Overview the size of the heap [grows](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L247) to accommodate more data. Heaps grow in two stages, first a [variation of the Fibonacci sequence](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L199-L208) is used starting at 233 words. Then at about 1 mega words the heap only [grows in 20% increments](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L215-L227).
+
+There are two occasions when the young heap grows:
+
+* if the total size of the heap + message and heap fragments exceeds the current heap size.
+* if after a fullsweep, the total amount of live objects is greater than 75%.
+
+There are two occasions when the young heap is shrunk:
+
+* if after a young collection, the total amount of live objects is less than 25% of the heap and the young heap is "big"
+* if after a fullsweep, the total amount of live objects is less than 25% of the heap.
+
+The old heap is always one step ahead in the heap growth stages than the young heap.
+
+## Literals
+
+When garbage collecting a heap (young or old) all literals are left in place and not copied. To figure out if a term should be copied or not when doing a garbage collection the following pseudo code is used:
+
+```c
+if (erts_is_literal(ptr) || (on_old_heap(ptr) && !fullsweep)) {
+  /* literal or non fullsweep - do not copy */
+} else {
+  copy(ptr);
+}
+```
+
+The [`erts_is_literal`](https://github.com/erlang/otp/blob/OTP-19.0/erts/emulator/beam/global.h#L1452-L1465) check works differently on different architectures and operating systems.
+
+On 64 bit systems that allow mapping of unreserved virtual memory areas (most operating systems except Windows), an area of size 1 GB (by default) is mapped and then all literals are placed within that area. Then all that has to be done to determine if something is a literal or not is [two quick pointer checks](https://github.com/erlang/otp/blob/OTP-19.0/erts/emulator/beam/erl_alloc.h#L322-L324). This system relies on the fact that a memory page that has not been touched yet does not take any actual space. So even if 1 GB of virtual memory is mapped, only the memory which is actually needed for literals is allocated in ram. The size of the literal area is configurable through the +MIscs erts_alloc option.
+
+On 32 bit systems, there is not enough virtual memory space to allocate 1 GB for just literals, so instead small 256 KB sized literal regions are created on demand and a card mark bit-array of the entire 32 bit memory space is then used to determine if a term is a literal or not. Since the total memory space is only 32 bits, the card mark bit-array is only 256 words large. On a 64 bit system the same bit-array would have to be 1 tera words large, so this technique is only viable on 32 bit systems. Doing [lookups in the array](https://github.com/erlang/otp/blob/OTP-19.0/erts/emulator/beam/erl_alloc.h#L316-L319) is a little more expensive then just doing the pointer checks that can be done in 64 bit systems, but not extremely so.
+
+On 64 bit windows, on which erts_alloc cannot do unreserved virtual memory mappings, a [special tag](https://github.com/erlang/otp/blob/OTP-19.0/erts/emulator/beam/erl_term.h#L59) within the Erlang term object is used to determine if something [is a literal or not](https://github.com/erlang/otp/blob/OTP-19.0/erts/emulator/beam/erl_term.h#L248-L252). This is very cheap, however, the tag is only available on 64 bit machines, and it is possible to do a great deal of other nice optimizations with this tag in the future (like for instance a more compact list implementation) so it is not used on operating systems where it is not needed.
+
+This behaviour is different from how it worked prior to Erlang/OTP 19.0. Before 19.0 the literal check was done by checking if the pointer pointed to the young or old heap block. If it did not, then it was considered a literal. This lead to considerable overhead and strange memory usage scenarios, so it was removed in 19.0.
+
+## Binary heap
+
+The binary heap works as a large object space for binary terms that are greater than 64 bytes (from now on called off-heap binaries). The binary heap is [reference counted](https://en.wikipedia.org/wiki/Reference_counting) and a pointer to the off-heap binary is stored on the process heap. To keep track of when to decrement the reference counter of the off-heap binary, a linked list (the MSO - mark and sweep object list) containing funs and externals as well as off-heap binaries is woven through the heap. After a garbage collection is done, the [MSO list is swept](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2299) and any off-heap binary that does not have a [move marker](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2325) written into the header words has its reference [decremented and is potentially freed](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2344-L2367).
+
+All items in the MSO list are ordered by the time they were added to the process heap, so when doing a minor garbage collection, the MSO sweeper only has to sweep until it [encounters an off-heap binary that is on the old heap](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_gc.c#L2369).
+
+### Virtual Binary heap
+
+Each process has a virtual binary heap associated with it that has the size of all the current off-heap binaries that the process has references to. The virtual binary heap also has a limit and grows and shrinks depending on how off-heap binaries are used by the process. The same growth and shrink mechanisms are used for the binary heap and for the term heap, so first a Fibonacci like series and then 20% growth.
+
+The virtual binary heap exists in order to [trigger](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/beam_emu.c#L364) garbage collections earlier when potentially there is a very large amount of off-heap binary data that could be reclaimed. This approach does not catch all problems with binary memory not being released soon enough, but it does catch a lot of them.
+
+## Messages
+
+Messages can become a part of the process heap at different times. This depends on how the process is configured.
+We can configure the behaviour of each process using `process_flag(message_queue_data, off_heap | on_heap)` or we can set a default for all processes at start using the option `+hmqd`.
+
+What do these different configurations do and when should we use them?
+Let's start by going through what happens when one Erlang process sends a message to another.
+The sending process needs to do a couple of things:
+
+1. calculate [how large](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_message.c#L1031) the message to be sent is
+2. [allocate enough space](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_message.c#L1033) to fit the entire message
+3. [copy](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_message.c#L1040) the message payload
+4. allocate a message container with some meta data
+5. [insert](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_message.c#L502) the message container in the receiver process' [message queue](https://github.com/erlang/otp/blob/OTP-18.0/erts/emulator/beam/erl_process.h#L1042)
+
+The process flag `message_queue_data`, of the receiver process, controls the message allocating strategy of the sender process in step 2 and also how the message data is treated by the garbage collector.
+
+The procedure above is different from how it worked prior to 19.0. Before 19.0 there was no configuration option, the behaviour was always very similar to how the `on_heap` option is in 19.0.
+
+### Message allocating strategies
+
+If set to `on_heap`, the sending process will first attempt to allocate the space for the message directly on the young heap block of the receiving process.
+This is not always possible as it requires taking the *main lock* of the receiving process. The main lock is also held when the process is executing. The possibility for a lock conflict is thus likely in an intensely collaborating system.
+If the sending process cannot acquire the main lock, a heap fragment is instead created for the message and the message payload is copied onto that.
+With the `off_heap` option the sender process always creates heap fragments for messages sent to that process.
+
+There are a bunch of different tradeoffs that come into play when trying to figure out which of the strategies you want to use.
+
+Using `off_heap` may seem like a nice way to get a more scalable system as you get very little contention on the main locks, however, allocating a heap fragment is more expensive than allocating on the heap of the receiving process. So if it is very unlikely that contention will occur, it is more efficient to try to allocate the message directly on the receiving process' heap.
+
+Using `on_heap` will force all messages to be part of on the young heap which will increase the amount of data that the garbage collector has to move. So if a garbage collection is triggered while processing a large amount of messages, they will be copied to the young heap. This in turn will lead to that the messages will quickly be promoted to the old heap and thus increase its size. This may be good or bad depending on exactly what the process does. A large old heap means that the young heap will also be larger, which in turn means that less garbage collections will be triggered while processing the message queue. This will temporarly increase the throughput of the process at the cost of more memory usage. However, if after all the messages have been consumed the process enters a state where a lot less messages are being received. Then it may be a long time before the next fullsweep garbage collection happens and the messages that are on the old heap will be there until that happens. So while `on_heap` is potentially faster than the other modes, it uses more memory for a longer time. This mode is the legacy mode which is almost how the message queue was handled before Erlang/OTP 19.0.
+
+Which one of these strategies is best depends a lot on what the process is doing and how it interacts with other processes. So, as always, profile the application and see how it behaves with the different options.
+
+   <a name="cheney">[1]</a>: C. J. Cheney. A nonrecursive list compacting algorithm. Commun. ACM, 13(11):677–678, Nov. 1970.
+
+   <a name="ungar">[2]</a>: D. Ungar. Generation scavenging: A non-disruptive high performance storage reclamation algorithm. SIGSOFT Softw. Eng. Notes, 9(3):157–167, Apr. 1984.
diff --git a/erts/emulator/internal_doc/figures/.gitignore b/erts/emulator/internal_doc/figures/.gitignore
new file mode 100644
index 0000000000..c2813ac866
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/.gitignore
@@ -0,0 +1 @@
+*.eps
\ No newline at end of file
diff --git a/erts/emulator/internal_doc/figures/Makefile b/erts/emulator/internal_doc/figures/Makefile
new file mode 100644
index 0000000000..111cb393fb
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/Makefile
@@ -0,0 +1,20 @@
+# In order to update the figures you have to have both dia
+# and imagemagick installed.
+
+DIAGRAMS=$(wildcard *.dia)
+EPS_DIAGRAMS=$(patsubst %.dia,%.eps,$(DIAGRAMS))
+PNG_DIAGRAMS=$(patsubst %.dia,%.png,$(DIAGRAMS))
+
+diagrams: $(EPS_DIAGRAMS)
+
+png: $(PNG_DIAGRAMS)
+
+update_png: png
+	git add $(PNG_DIAGRAMS)
+	git commit -m "Update internal docs figures"
+
+%.eps: %.dia
+	dia --export=$@ $<
+
+%.png: %.eps
+	convert $< -resize 65% $@
diff --git a/erts/emulator/internal_doc/figures/gc-heap-scan1.dia b/erts/emulator/internal_doc/figures/gc-heap-scan1.dia
new file mode 100644
index 0000000000..b8a32dc092
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-heap-scan1.dia
diff --git a/erts/emulator/internal_doc/figures/gc-heap-scan1.png b/erts/emulator/internal_doc/figures/gc-heap-scan1.png
new file mode 100644
index 0000000000..9724fc8698
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-heap-scan1.png
diff --git a/erts/emulator/internal_doc/figures/gc-heap-stop.dia b/erts/emulator/internal_doc/figures/gc-heap-stop.dia
new file mode 100644
index 0000000000..af219958c6
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-heap-stop.dia
diff --git a/erts/emulator/internal_doc/figures/gc-heap-stop.png b/erts/emulator/internal_doc/figures/gc-heap-stop.png
new file mode 100644
index 0000000000..ec79790d36
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-heap-stop.png
diff --git a/erts/emulator/internal_doc/figures/gc-rootset-scan.dia b/erts/emulator/internal_doc/figures/gc-rootset-scan.dia
new file mode 100644
index 0000000000..d6147740e5
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-rootset-scan.dia
diff --git a/erts/emulator/internal_doc/figures/gc-rootset-scan.png b/erts/emulator/internal_doc/figures/gc-rootset-scan.png
new file mode 100644
index 0000000000..06509f83c3
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-rootset-scan.png
diff --git a/erts/emulator/internal_doc/figures/gc-start.dia b/erts/emulator/internal_doc/figures/gc-start.dia
new file mode 100644
index 0000000000..41832d29b0
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-start.dia
diff --git a/erts/emulator/internal_doc/figures/gc-start.png b/erts/emulator/internal_doc/figures/gc-start.png
new file mode 100644
index 0000000000..6c29e9adb0
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-start.png
diff --git a/erts/emulator/internal_doc/figures/gc-watermark-2.dia b/erts/emulator/internal_doc/figures/gc-watermark-2.dia
new file mode 100644
index 0000000000..2ea3be3fb2
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-watermark-2.dia
diff --git a/erts/emulator/internal_doc/figures/gc-watermark-2.png b/erts/emulator/internal_doc/figures/gc-watermark-2.png
new file mode 100644
index 0000000000..bca110282d
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-watermark-2.png
diff --git a/erts/emulator/internal_doc/figures/gc-watermark.dia b/erts/emulator/internal_doc/figures/gc-watermark.dia
new file mode 100644
index 0000000000..a5de7565dc
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-watermark.dia
diff --git a/erts/emulator/internal_doc/figures/gc-watermark.png b/erts/emulator/internal_doc/figures/gc-watermark.png
new file mode 100644
index 0000000000..b835c7694e
--- /dev/null
+++ b/erts/emulator/internal_doc/figures/gc-watermark.png
diff --git a/erts/emulator/nifs/common/zlib_nif.c b/erts/emulator/nifs/common/zlib_nif.c
new file mode 100644
index 0000000000..fa29b4fb71
--- /dev/null
+++ b/erts/emulator/nifs/common/zlib_nif.c
@@ -0,0 +1,1028 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson 2017. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#define STATIC_ERLANG_NIF 1
+
+#include <stdio.h>
+#include <zlib.h>
+
+#include "erl_nif.h"
+#include "config.h"
+#include "sys.h"
+
+#ifdef VALGRIND
+#  include <valgrind/memcheck.h>
+#endif
+
+#define INFL_DICT_SZ    (32768)
+
+/* NIF interface declarations */
+static int load(ErlNifEnv *env, void** priv_data, ERL_NIF_TERM load_info);
+static int upgrade(ErlNifEnv *env, void** priv_data, void** old_priv_data, ERL_NIF_TERM load_info);
+static void unload(ErlNifEnv *env, void* priv_data);
+
+static ErlNifResourceType *rtype_zlib;
+
+static ERL_NIF_TERM am_not_on_controlling_process;
+
+static ERL_NIF_TERM am_not_initialized;
+static ERL_NIF_TERM am_already_initialized;
+
+static ERL_NIF_TERM am_ok;
+static ERL_NIF_TERM am_error;
+
+static ERL_NIF_TERM am_continue;
+static ERL_NIF_TERM am_finished;
+
+static ERL_NIF_TERM am_not_supported;
+static ERL_NIF_TERM am_need_dictionary;
+
+static ERL_NIF_TERM am_empty;
+
+static ERL_NIF_TERM am_stream_end;
+static ERL_NIF_TERM am_stream_error;
+static ERL_NIF_TERM am_data_error;
+static ERL_NIF_TERM am_mem_error;
+static ERL_NIF_TERM am_buf_error;
+static ERL_NIF_TERM am_version_error;
+static ERL_NIF_TERM am_unknown_error;
+
+typedef enum {
+    ST_NONE    = 0,
+    ST_DEFLATE = 1,
+    ST_INFLATE = 2,
+    ST_CLOSED = 3
+} zlib_state_t;
+
+/* Controls what to do when the user attempts to decompress more data after
+ * Z_STREAM_END has been returned:
+ *
+ * - 'cut' wipes all further input and returns empty results until reset by
+ * the user. This is the default behavior, matching that of the old driver.
+ * - 'reset' resets the state without discarding any input, making it possible
+ * to decompress blindly concatenated streams.
+ * - 'error' crashes with a data error. */
+typedef enum {
+    EOS_BEHAVIOR_ERROR = 0,
+    EOS_BEHAVIOR_RESET = 1,
+    EOS_BEHAVIOR_CUT = 2
+} zlib_eos_behavior_t;
+
+typedef struct {
+    z_stream s;
+    zlib_state_t state;
+
+    zlib_eos_behavior_t eos_behavior;
+
+    /* These refer to the plaintext CRC, and are only needed for zlib:crc32/1
+     * which is deprecated. */
+    uLong input_crc;
+    uLong output_crc;
+    int want_input_crc;
+    int want_output_crc;
+
+    int is_raw_stream;
+
+    int eos_seen;
+
+    /* DEPRECATED */
+    int inflateChunk_buffer_size;
+
+    ErlNifPid controlling_process;
+    ErlNifMutex *controller_lock;
+
+    ErlNifIOQueue *input_queue;
+
+    ErlNifEnv *stash_env;
+    ERL_NIF_TERM stash_term;
+} zlib_data_t;
+
+/* The NIFs: */
+
+static ERL_NIF_TERM zlib_open(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_close(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_set_controller(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+
+static ERL_NIF_TERM zlib_deflateInit(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_deflateSetDictionary(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_deflateReset(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_deflateEnd(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_deflateParams(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_deflate(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+
+static ERL_NIF_TERM zlib_inflateInit(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_inflateSetDictionary(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_inflateGetDictionary(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_inflateReset(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_inflateEnd(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_inflate(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+
+static ERL_NIF_TERM zlib_crc32(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+
+static ERL_NIF_TERM zlib_clearStash(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_setStash(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_getStash(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+
+static ERL_NIF_TERM zlib_getBufSize(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM zlib_setBufSize(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+
+static ERL_NIF_TERM zlib_enqueue_input(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
+
+static ErlNifFunc nif_funcs[] = {
+    {"close_nif", 1, zlib_close},
+    {"open_nif", 0, zlib_open},
+
+    {"set_controller_nif", 2, zlib_set_controller},
+
+    /* deflate */
+    {"deflateInit_nif", 6, zlib_deflateInit},
+    {"deflateSetDictionary_nif", 2, zlib_deflateSetDictionary},
+    {"deflateReset_nif", 1, zlib_deflateReset},
+    {"deflateEnd_nif", 1, zlib_deflateEnd},
+    {"deflateParams_nif", 3, zlib_deflateParams},
+    {"deflate_nif", 4, zlib_deflate},
+
+    /* inflate */
+    {"inflateInit_nif", 3, zlib_inflateInit},
+    {"inflateSetDictionary_nif", 2, zlib_inflateSetDictionary},
+    {"inflateGetDictionary_nif", 1, zlib_inflateGetDictionary},
+    {"inflateReset_nif", 1, zlib_inflateReset},
+    {"inflateEnd_nif", 1, zlib_inflateEnd},
+    {"inflate_nif", 4, zlib_inflate},
+
+    /* running checksum */
+    {"crc32_nif", 1, zlib_crc32},
+
+    /* The stash keeps a single term alive across calls, and is used in
+     * exception_on_need_dict/1 to retain the old error behavior, and for
+     * saving data flushed through deflateParams/3. */
+    {"getStash_nif", 1, zlib_getStash},
+    {"clearStash_nif", 1, zlib_clearStash},
+    {"setStash_nif", 2, zlib_setStash},
+
+    /* DEPRECATED: buffer size for inflateChunk */
+    {"getBufSize_nif", 1, zlib_getBufSize},
+    {"setBufSize_nif", 2, zlib_setBufSize},
+
+    {"enqueue_nif", 2, zlib_enqueue_input},
+};
+
+ERL_NIF_INIT(zlib, nif_funcs, load, NULL, upgrade, unload)
+
+static void gc_zlib(ErlNifEnv *env, void* data);
+
+static int load(ErlNifEnv *env, void** priv_data, ERL_NIF_TERM load_info)
+{
+    am_not_on_controlling_process =
+        enif_make_atom(env, "not_on_controlling_process");
+
+    am_not_initialized = enif_make_atom(env, "not_initialized");
+    am_already_initialized = enif_make_atom(env, "already_initialized");
+
+    am_ok = enif_make_atom(env, "ok");
+    am_error = enif_make_atom(env, "error");
+
+    am_continue = enif_make_atom(env, "continue");
+    am_finished = enif_make_atom(env, "finished");
+
+    am_not_supported = enif_make_atom(env, "not_supported");
+    am_need_dictionary = enif_make_atom(env, "need_dictionary");
+
+    am_empty = enif_make_atom(env, "empty");
+
+    am_stream_end = enif_make_atom(env, "stream_end");
+    am_stream_error = enif_make_atom(env, "stream_error");
+    am_data_error = enif_make_atom(env, "data_error");
+    am_mem_error = enif_make_atom(env, "mem_error");
+    am_buf_error = enif_make_atom(env, "buf_error");
+    am_version_error = enif_make_atom(env, "version_error");
+    am_unknown_error = enif_make_atom(env, "unknown_error");
+
+    rtype_zlib = enif_open_resource_type(env, NULL,
+            "gc_zlib", gc_zlib, ERL_NIF_RT_CREATE, NULL);
+    *priv_data = NULL;
+
+    return 0;
+}
+
+static void unload(ErlNifEnv *env, void* priv_data)
+{
+
+}
+
+static int upgrade(ErlNifEnv *env, void** priv_data, void** old_priv_data, ERL_NIF_TERM load_info)
+{
+    if(*old_priv_data != NULL) {
+        return -1; /* Don't know how to do that */
+    }
+    if(*priv_data != NULL) {
+        return -1; /* Don't know how to do that */
+    }
+    if(load(env, priv_data, load_info)) {
+        return -1;
+    }
+    return 0;
+}
+
+static void* zlib_alloc(void* data, unsigned int items, unsigned int size)
+{
+    return (void*) enif_alloc(items * size);
+}
+
+static void zlib_free(void* data, void* addr)
+{
+    enif_free(addr);
+}
+
+static ERL_NIF_TERM zlib_return(ErlNifEnv *env, int code) {
+    ERL_NIF_TERM reason;
+    switch(code) {
+    case Z_OK:
+        reason = am_ok;
+        break;
+    case Z_STREAM_END:
+        reason = am_stream_end;
+        break;
+    case Z_ERRNO:
+        reason = enif_make_int(env, errno);
+        break;
+    case Z_STREAM_ERROR:
+        reason = enif_raise_exception(env, am_stream_error);
+        break;
+    case Z_DATA_ERROR:
+        reason = enif_raise_exception(env, am_data_error);
+        break;
+    case Z_MEM_ERROR:
+        reason = am_mem_error;
+        break;
+    case Z_BUF_ERROR:
+        reason = am_buf_error;
+        break;
+    case Z_VERSION_ERROR:
+        reason = am_version_error;
+        break;
+    default:
+        reason = am_unknown_error;
+        break;
+    }
+    return reason;
+}
+
+static void zlib_internal_close(zlib_data_t *d) {
+    if(d->state == ST_DEFLATE) {
+        deflateEnd(&d->s);
+    } else if(d->state == ST_INFLATE) {
+        inflateEnd(&d->s);
+    }
+
+    if(d->state != ST_CLOSED) {
+        if(d->stash_env != NULL) {
+            enif_free_env(d->stash_env);
+        }
+
+        d->state = ST_CLOSED;
+    }
+}
+
+static void gc_zlib(ErlNifEnv *env, void* data) {
+    zlib_data_t *d = (zlib_data_t*)data;
+
+    enif_mutex_destroy(d->controller_lock);
+    enif_ioq_destroy(d->input_queue);
+
+    zlib_internal_close(d);
+
+    (void)env;
+}
+
+static int get_zlib_data(ErlNifEnv *env, ERL_NIF_TERM opaque, zlib_data_t **d) {
+    return enif_get_resource(env, opaque, rtype_zlib, (void **)d);
+}
+
+static int zlib_process_check(ErlNifEnv *env, zlib_data_t *d) {
+    int is_controlling_process;
+    ErlNifPid current_process;
+
+    enif_self(env, &current_process);
+
+    enif_mutex_lock(d->controller_lock);
+
+    is_controlling_process = enif_is_identical(
+        enif_make_pid(env, &current_process),
+        enif_make_pid(env, &d->controlling_process));
+
+    enif_mutex_unlock(d->controller_lock);
+
+    return is_controlling_process;
+}
+
+static void zlib_reset_input(zlib_data_t *d) {
+    enif_ioq_destroy(d->input_queue);
+    d->input_queue = enif_ioq_create(ERL_NIF_IOQ_NORMAL);
+
+    if(d->stash_env != NULL) {
+        enif_free_env(d->stash_env);
+        d->stash_env = NULL;
+        d->stash_term = NIL;
+    }
+}
+
+static int zlib_flush_queue(int (*codec)(z_stream*, int), ErlNifEnv *env,
+        zlib_data_t *d, size_t input_limit, ErlNifBinary *output_buffer, int flush,
+        size_t *bytes_produced, size_t *bytes_consumed, size_t *bytes_remaining) {
+
+    int vec_len, vec_idx;
+    SysIOVec *input_vec;
+    int res;
+
+    input_vec = enif_ioq_peek(d->input_queue, &vec_len);
+    vec_idx = 0;
+    res = Z_OK;
+
+    *bytes_produced = 0;
+    *bytes_consumed = 0;
+
+    d->s.avail_out = output_buffer->size;
+    d->s.next_out = output_buffer->data;
+
+    while(res == Z_OK && vec_idx < vec_len && *bytes_consumed < input_limit) {
+        size_t timeslice_percent, block_consumed, block_size;
+
+        block_size = MIN(input_vec[vec_idx].iov_len, input_limit);
+
+        d->s.next_in = input_vec[vec_idx].iov_base;
+        d->s.avail_in = block_size;
+
+        res = codec(&d->s, Z_NO_FLUSH);
+
+        ASSERT(d->s.avail_in == 0 || d->s.avail_out == 0 || res != Z_OK);
+
+        block_consumed = block_size - d->s.avail_in;
+        *bytes_consumed += block_consumed;
+
+        if(d->want_input_crc) {
+            d->input_crc =
+                crc32(d->input_crc, input_vec[vec_idx].iov_base, block_consumed);
+        }
+
+        timeslice_percent = (100 * block_consumed) / input_limit;
+        if(enif_consume_timeslice(env, MAX(1, timeslice_percent))) {
+            break;
+        }
+
+        vec_idx++;
+    }
+
+    if(!enif_ioq_deq(d->input_queue, *bytes_consumed, bytes_remaining)) {
+        *bytes_remaining = 0;
+        res = Z_BUF_ERROR;
+    }
+
+    if(res == Z_OK && flush != Z_NO_FLUSH && (*bytes_remaining == 0)) {
+        d->s.next_in = NULL;
+        d->s.avail_in = 0;
+
+        res = codec(&d->s, flush);
+    }
+
+    *bytes_produced = output_buffer->size - d->s.avail_out;
+
+    return res;
+}
+
+static ERL_NIF_TERM zlib_codec(int (*codec)(z_stream*, int),
+                               ErlNifEnv *env, zlib_data_t *d,
+                               int input_chunk_size,
+                               int output_chunk_size,
+                               int flush) {
+
+    size_t bytes_produced, bytes_consumed, bytes_remaining;
+    ErlNifBinary output_buffer;
+    int res;
+
+    if(!enif_alloc_binary(output_chunk_size, &output_buffer)) {
+        return zlib_return(env, Z_MEM_ERROR);
+    }
+
+    res = zlib_flush_queue(codec, env, d, input_chunk_size, &output_buffer,
+        flush, &bytes_produced, &bytes_consumed, &bytes_remaining);
+
+    if(res < 0 && res != Z_BUF_ERROR) {
+        enif_release_binary(&output_buffer);
+        return zlib_return(env, res);
+    }
+
+    if(res == Z_STREAM_END) {
+        d->eos_seen = 1;
+    }
+
+    if(d->want_output_crc) {
+        d->output_crc =
+            crc32(d->output_crc, output_buffer.data, bytes_produced);
+    }
+
+    if(bytes_consumed == 0 && bytes_produced == 0 && bytes_remaining != 0) {
+        /* Die if we've made zero progress; this should not happen on
+         * well-formed input. */
+
+        enif_release_binary(&output_buffer);
+        return zlib_return(env, Z_DATA_ERROR);
+    } else {
+        ERL_NIF_TERM flushed_output;
+
+        if(bytes_produced > 0) {
+            if(bytes_produced < output_buffer.size) {
+                enif_realloc_binary(&output_buffer, bytes_produced);
+            }
+
+            flushed_output =
+                enif_make_list1(env, enif_make_binary(env, &output_buffer));
+        } else {
+            enif_release_binary(&output_buffer);
+            flushed_output = enif_make_list(env, 0);
+        }
+
+        if(bytes_remaining == 0 && bytes_produced < output_chunk_size) {
+            return enif_make_tuple2(env, am_finished, flushed_output);
+        } else if(res != Z_NEED_DICT) {
+            return enif_make_tuple2(env, am_continue, flushed_output);
+        }
+
+        return enif_make_tuple3(env, am_need_dictionary,
+            enif_make_int(env, d->s.adler), flushed_output);
+    }
+}
+
+/* zlib nifs */
+
+static ERL_NIF_TERM zlib_getStash(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    if(argc != 1 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    }
+
+    if(d->stash_env == NULL) {
+        return am_empty;
+    }
+
+    return enif_make_tuple2(env, am_ok, enif_make_copy(env, d->stash_term));
+}
+
+static ERL_NIF_TERM zlib_clearStash(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    if(argc != 1 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->stash_env == NULL) {
+        return enif_raise_exception(env, am_error);
+    }
+
+    enif_free_env(d->stash_env);
+    d->stash_env = NULL;
+    d->stash_term = NIL;
+
+    return am_ok;
+}
+
+static ERL_NIF_TERM zlib_setStash(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    if(argc != 2 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->stash_env != NULL) {
+        return enif_raise_exception(env, am_error);
+    }
+
+    d->stash_env = enif_alloc_env();
+    d->stash_term = enif_make_copy(d->stash_env, argv[1]);
+
+    return am_ok;
+}
+
+static ERL_NIF_TERM zlib_open(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+    ERL_NIF_TERM result;
+
+    d = (zlib_data_t *) enif_alloc_resource(rtype_zlib, sizeof(zlib_data_t));
+
+    memset(&d->s, 0, sizeof(z_stream));
+
+    enif_self(env, &d->controlling_process);
+
+    d->input_queue = enif_ioq_create(ERL_NIF_IOQ_NORMAL);
+
+    d->controller_lock = enif_mutex_create("zlib_controller_lock");
+
+    d->s.zalloc = zlib_alloc;
+    d->s.zfree  = zlib_free;
+    d->s.opaque = d;
+    d->s.data_type = Z_BINARY;
+
+    d->eos_behavior = EOS_BEHAVIOR_CUT;
+    d->eos_seen = 0;
+
+    d->state = ST_NONE;
+
+    d->want_output_crc = 0;
+    d->want_input_crc = 0;
+    d->is_raw_stream = 0;
+
+    d->output_crc = crc32(0L, Z_NULL, 0);
+    d->input_crc = crc32(0L, Z_NULL, 0);
+
+    d->stash_env = NULL;
+    d->stash_term = NIL;
+
+    d->inflateChunk_buffer_size = 4000;
+
+    result = enif_make_resource(env, d);
+    enif_release_resource(d);
+
+    return result;
+}
+
+static ERL_NIF_TERM zlib_close(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    /* strictly speaking not needed since the gc will handle this */
+    if(argc != 1 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state == ST_CLOSED) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+    zlib_internal_close(d);
+
+    return am_ok;
+}
+
+static ERL_NIF_TERM zlib_set_controller(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    ErlNifPid new_owner;
+
+    if(argc != 2 || !get_zlib_data(env, argv[0], &d)
+                 || !enif_get_local_pid(env, argv[1], &new_owner)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    }
+
+    enif_mutex_lock(d->controller_lock);
+
+    d->controlling_process = new_owner;
+
+    enif_mutex_unlock(d->controller_lock);
+
+    return am_ok;
+}
+
+/* deflate */
+
+static ERL_NIF_TERM zlib_deflateInit(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+    int level, method, windowBits, memLevel, strategy, res;
+
+    if(argc != 6 || !get_zlib_data(env, argv[0], &d) 
+                 || !enif_get_int(env, argv[1], &level)
+                 || !enif_get_int(env, argv[2], &method)
+                 || !enif_get_int(env, argv[3], &windowBits)
+                 || !enif_get_int(env, argv[4], &memLevel)
+                 || !enif_get_int(env, argv[5], &strategy)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_NONE) {
+        return enif_raise_exception(env, am_already_initialized);
+    }
+
+    res = deflateInit2(&d->s, level, method, windowBits, memLevel, strategy);
+
+    if(res == Z_OK) {
+        d->state = ST_DEFLATE;
+        d->eos_seen = 0;
+
+        d->is_raw_stream = (windowBits < 0);
+
+        d->want_output_crc = 0;
+        d->want_input_crc = d->is_raw_stream;
+
+        d->output_crc = crc32(0L, Z_NULL, 0);
+        d->input_crc = crc32(0L, Z_NULL, 0);
+    }
+
+    return zlib_return(env, res);
+}
+
+static ERL_NIF_TERM zlib_deflateSetDictionary(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+    ErlNifBinary bin;
+    int res;
+
+    if(argc != 2 || !get_zlib_data(env, argv[0], &d)
+                 || !enif_inspect_iolist_as_binary(env, argv[1], &bin)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_DEFLATE) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+    if((res = deflateSetDictionary(&d->s, bin.data, bin.size)) == Z_OK) {
+        uLong checksum = d->s.adler;
+
+        /* d->s.adler is not updated in raw deflate mode, so we'll calculate it
+         * ourselves in case the user wants to rely on that behavior. */
+        if(d->is_raw_stream) {
+            checksum = adler32(0, bin.data, bin.size);
+        }
+
+        return enif_make_int(env, checksum);
+    }
+
+    return zlib_return(env, res);
+}
+
+static ERL_NIF_TERM zlib_deflateReset(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+    int res;
+
+    if(argc != 1 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_DEFLATE) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+    res = deflateReset(&d->s);
+
+    d->input_crc = crc32(0L, Z_NULL, 0);
+    d->eos_seen = 0;
+
+    zlib_reset_input(d);
+
+    return zlib_return(env, res);
+}
+
+static ERL_NIF_TERM zlib_deflateEnd(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+    int res;
+
+    if(argc != 1 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_DEFLATE) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+    res = deflateEnd(&d->s);
+
+    if(res == Z_OK && enif_ioq_size(d->input_queue) > 0) {
+        res = Z_DATA_ERROR;
+    }
+
+    zlib_reset_input(d);
+    d->state = ST_NONE;
+
+    return zlib_return(env, res);
+}
+
+static ERL_NIF_TERM zlib_deflateParams(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+    int res, level, strategy;
+
+    if(argc != 3 || !get_zlib_data(env, argv[0], &d)
+                 || !enif_get_int(env, argv[1], &level)
+                 || !enif_get_int(env, argv[2], &strategy)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_DEFLATE) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+    /* deflateParams will flush everything currently in the stream, corrupting
+     * the heap unless it's empty. We therefore pretend to have a full output
+     * buffer, forcing a Z_BUF_ERROR if there's anything left to be flushed. */
+    d->s.avail_out = 0;
+    res = deflateParams(&d->s, level, strategy);
+
+    return zlib_return(env, res);
+}
+
+static ERL_NIF_TERM zlib_deflate(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    int input_chunk_size, output_chunk_size, flush;
+
+    if(argc != 4 || !get_zlib_data(env, argv[0], &d)
+                 || !enif_get_int(env, argv[1], &input_chunk_size)
+                 || !enif_get_int(env, argv[2], &output_chunk_size)
+                 || !enif_get_int(env, argv[3], &flush)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_DEFLATE) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+    return zlib_codec(&deflate, env, d, input_chunk_size, output_chunk_size, flush);
+}
+
+/* inflate */
+
+static ERL_NIF_TERM zlib_inflateInit(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    int windowBits, eosBehavior, res;
+
+    if(argc != 3 || !get_zlib_data(env, argv[0], &d)
+                 || !enif_get_int(env, argv[1], &windowBits)
+                 || !enif_get_int(env, argv[2], &eosBehavior)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_NONE) {
+        return enif_raise_exception(env, am_already_initialized);
+    }
+
+    res = inflateInit2(&d->s, windowBits);
+
+    if(res == Z_OK) {
+        d->state = ST_INFLATE;
+
+        d->eos_behavior = eosBehavior;
+        d->eos_seen = 0;
+
+        d->is_raw_stream = (windowBits < 0);
+
+        d->want_output_crc = d->is_raw_stream;
+        d->want_input_crc = 0;
+
+        d->output_crc = crc32(0L, Z_NULL, 0);
+        d->input_crc = crc32(0L, Z_NULL, 0);
+    }
+
+    return zlib_return(env, res);
+}
+
+static ERL_NIF_TERM zlib_inflateSetDictionary(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+    ErlNifBinary bin;
+    int res;
+
+    if(argc != 2 || !get_zlib_data(env, argv[0], &d)
+                 || !enif_inspect_iolist_as_binary(env, argv[1], &bin)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_INFLATE) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+    res = inflateSetDictionary(&d->s, bin.data, bin.size);
+
+    return zlib_return(env, res);
+}
+
+#ifdef HAVE_ZLIB_INFLATEGETDICTIONARY
+/* Work around broken build system with runtime version test */
+static int zlib_supports_inflateGetDictionary(void) {
+    static int supportsGetDictionary = -1;
+
+#if defined(__APPLE__) && defined(__MACH__)
+    if(supportsGetDictionary < 0) {
+        unsigned int v[4] = {0, 0, 0, 0};
+        unsigned hexver;
+
+        sscanf(zlibVersion(), "%u.%u.%u.%u", &v[0], &v[1], &v[2], &v[3]);
+
+        hexver = (v[0] << (8*3)) | (v[1] << (8*2)) | (v[2] << (8)) | v[3];
+        supportsGetDictionary = (hexver >= 0x1020701); /* 1.2.7.1 */
+    }
+#endif
+
+    return supportsGetDictionary;
+}
+#endif
+
+static ERL_NIF_TERM zlib_inflateGetDictionary(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    if(argc != 1 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_INFLATE) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+#ifdef HAVE_ZLIB_INFLATEGETDICTIONARY
+    if(zlib_supports_inflateGetDictionary()) {
+        ErlNifBinary obin;
+        uInt len;
+        int res;
+
+        enif_alloc_binary(INFL_DICT_SZ, &obin);
+        len = 0;
+
+        if((res = inflateGetDictionary(&d->s, obin.data, &len)) < 0) {
+            enif_release_binary(&obin);
+            return zlib_return(env, res);
+        }
+
+        enif_realloc_binary(&obin, (size_t)len);
+        return enif_make_binary(env, &obin);
+    }
+#endif
+
+    return enif_raise_exception(env, am_not_supported);
+}
+
+static ERL_NIF_TERM zlib_inflateReset(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+    int res;
+
+    if(argc != 1 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_INFLATE) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+    res = inflateReset(&d->s);
+
+    d->output_crc = crc32(0L, Z_NULL, 0);
+    d->eos_seen = 0;
+
+    zlib_reset_input(d);
+
+    return zlib_return(env, res);
+}
+
+static ERL_NIF_TERM zlib_inflateEnd(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+    int res;
+
+    if(argc != 1 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_INFLATE) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+    res = inflateEnd(&d->s);
+
+    if(res == Z_OK && (!d->eos_seen || enif_ioq_size(d->input_queue) > 0)) {
+        res = Z_DATA_ERROR;
+    }
+
+    zlib_reset_input(d);
+    d->state = ST_NONE;
+
+    return zlib_return(env, res);
+}
+
+static ERL_NIF_TERM zlib_inflate(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    int input_chunk_size, output_chunk_size, flush;
+
+    if(argc != 4 || !get_zlib_data(env, argv[0], &d)
+                 || !enif_get_int(env, argv[1], &input_chunk_size)
+                 || !enif_get_int(env, argv[2], &output_chunk_size)
+                 || !enif_get_int(env, argv[3], &flush)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_INFLATE) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+    if(d->eos_seen) {
+        int res;
+
+        switch(d->eos_behavior) {
+        case EOS_BEHAVIOR_ERROR:
+            return zlib_return(env, Z_DATA_ERROR);
+        case EOS_BEHAVIOR_RESET:
+            res = inflateReset(&d->s);
+
+            if(res != Z_OK) {
+                return zlib_return(env, res);
+            }
+
+            d->eos_seen = 0;
+            break;
+        case EOS_BEHAVIOR_CUT:
+            zlib_reset_input(d);
+
+            return enif_make_tuple2(env, am_finished, enif_make_list(env, 0));
+        }
+    }
+
+    return zlib_codec(&inflate, env, d, input_chunk_size, output_chunk_size, flush);
+}
+
+static ERL_NIF_TERM zlib_crc32(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    if(argc != 1 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    }
+
+    if(d->state == ST_DEFLATE) {
+        return enif_make_ulong(env, d->input_crc);
+    } else if(d->state == ST_INFLATE) {
+        return enif_make_ulong(env, d->output_crc);
+    }
+
+    return enif_raise_exception(env, am_not_initialized);
+}
+
+static ERL_NIF_TERM zlib_getBufSize(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    if(argc != 1 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    }
+
+    return enif_make_int(env, d->inflateChunk_buffer_size);
+}
+
+static ERL_NIF_TERM zlib_setBufSize(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    if(argc != 2 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    }
+
+    if(!enif_get_int(env, argv[1], &d->inflateChunk_buffer_size)) {
+        return enif_make_badarg(env);
+    }
+
+    return am_ok;
+}
+
+static ERL_NIF_TERM zlib_enqueue_input(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]) {
+    zlib_data_t *d;
+
+    ErlNifIOVec prealloc, *iovec = &prealloc;
+    ERL_NIF_TERM tail;
+
+    if(argc != 2 || !get_zlib_data(env, argv[0], &d)) {
+        return enif_make_badarg(env);
+    } else if(!zlib_process_check(env, d)) {
+        return enif_raise_exception(env, am_not_on_controlling_process);
+    } else if(d->state != ST_DEFLATE && d->state != ST_INFLATE) {
+        return enif_raise_exception(env, am_not_initialized);
+    }
+
+    if(!enif_inspect_iovec(env, 256, argv[1], &tail, &iovec)) {
+        return enif_make_badarg(env);
+    } else if(!enif_ioq_enqv(d->input_queue, iovec, 0)) {
+        return enif_make_badarg(env);
+    }
+
+    if(!enif_is_empty_list(env, tail)) {
+        return enif_make_tuple2(env, am_continue, tail);
+    }
+
+    return am_ok;
+}
diff --git a/erts/emulator/pcre/README.pcre_update.md b/erts/emulator/pcre/README.pcre_update.md
index 8caf575d31..599e3d0d12 100644
--- a/erts/emulator/pcre/README.pcre_update.md
+++ b/erts/emulator/pcre/README.pcre_update.md
@@ -2,7 +2,7 @@
 
 ## The basic changes to the PCRE library
 
-To work with the Erlang VM, PCRE has been changed in two important ways:
+To work with the Erlang VM, PCRE has been changed in three important ways:
 
 1. The main execution machine in pcre\_exec has been modified so that
 matching can be interrupted and restarted. This functionality utilizes
diff --git a/erts/emulator/pcre/local_config.h b/erts/emulator/pcre/local_config.h
index e90f4dcada..c6af423d72 100644
--- a/erts/emulator/pcre/local_config.h
+++ b/erts/emulator/pcre/local_config.h
@@ -86,4 +86,4 @@
 #define SUPPORT_UTF 
 
 /* Version number of package */
-#define VERSION "8.40"
+#define VERSION "8.41"
diff --git a/erts/emulator/pcre/pcre-8.40.tar.bz2 b/erts/emulator/pcre/pcre-8.40.tar.bz2
deleted file mode 100644
index 6147917f4e..0000000000
--- a/erts/emulator/pcre/pcre-8.40.tar.bz2
+++ /dev/null
diff --git a/erts/emulator/pcre/pcre-8.41.tar.bz2 b/erts/emulator/pcre/pcre-8.41.tar.bz2
new file mode 100644
index 0000000000..1798432dc9
--- /dev/null
+++ b/erts/emulator/pcre/pcre-8.41.tar.bz2
diff --git a/erts/emulator/pcre/pcre.h b/erts/emulator/pcre/pcre.h
index 9cbd9c0293..ab8f40cfc1 100644
--- a/erts/emulator/pcre/pcre.h
+++ b/erts/emulator/pcre/pcre.h
@@ -43,9 +43,9 @@ POSSIBILITY OF SUCH DAMAGE.
 /* The current PCRE version information. */
 
 #define PCRE_MAJOR          8
-#define PCRE_MINOR          40
+#define PCRE_MINOR          41
 #define PCRE_PRERELEASE     
-#define PCRE_DATE           2017-01-11
+#define PCRE_DATE           2017-07-05
 
 /* When an application links to a PCRE DLL in Windows, the symbols that are
 imported have to be identified as such. When building PCRE, the appropriate
diff --git a/erts/emulator/pcre/pcre_compile.c b/erts/emulator/pcre/pcre_compile.c
index 6e841c9cf8..e79284ab79 100644
--- a/erts/emulator/pcre/pcre_compile.c
+++ b/erts/emulator/pcre/pcre_compile.c
@@ -5740,6 +5740,21 @@ for (;; ptr++)
       ptr = p - 1;    /* Character before the next significant one. */
       }
 
+    /* We also need to skip over (?# comments, which are not dependent on
+    extended mode. */
+
+    if (ptr[1] == CHAR_LEFT_PARENTHESIS && ptr[2] == CHAR_QUESTION_MARK &&
+        ptr[3] == CHAR_NUMBER_SIGN)
+      {
+      ptr += 4;
+      while (*ptr != CHAR_NULL && *ptr != CHAR_RIGHT_PARENTHESIS) ptr++;
+      if (*ptr == CHAR_NULL)
+        {
+        *errorcodeptr = ERR18;
+        goto FAILED;
+        }
+      }
+
     /* If the next character is '+', we have a possessive quantifier. This
     implies greediness, whatever the setting of the PCRE_UNGREEDY option.
     If the next character is '?' this is a minimizing repeat, by default,
@@ -8211,7 +8226,6 @@ for (;; ptr++)
 
       if (mclength == 1 || req_caseopt == 0)
         {
-        firstchar = mcbuffer[0] | req_caseopt;
         firstchar = mcbuffer[0];
         firstcharflags = req_caseopt;
 
diff --git a/erts/emulator/pcre/pcre_dfa_exec.c b/erts/emulator/pcre/pcre_dfa_exec.c
index 529f40685b..c859d67fc7 100644
--- a/erts/emulator/pcre/pcre_dfa_exec.c
+++ b/erts/emulator/pcre/pcre_dfa_exec.c
@@ -7,7 +7,7 @@ and semantics are as close as possible to those of the Perl 5 language (but see
 below for why this module is different).
 
                        Written by Philip Hazel
-           Copyright (c) 1997-2014 University of Cambridge
+           Copyright (c) 1997-2017 University of Cambridge
 
 -----------------------------------------------------------------------------
 Redistribution and use in source and binary forms, with or without
@@ -2626,7 +2626,7 @@ for (;;)
           if (isinclass)
             {
             int max = (int)GET2(ecode, 1 + IMM2_SIZE);
-            if (*ecode == OP_CRPOSRANGE)
+            if (*ecode == OP_CRPOSRANGE && count >= (int)GET2(ecode, 1))
               {
               active_count--;           /* Remove non-match possibility */
               next_active_state--;
diff --git a/erts/emulator/pcre/pcre_exec.c b/erts/emulator/pcre/pcre_exec.c
index 0f682d3daf..6708ba92a6 100644
--- a/erts/emulator/pcre/pcre_exec.c
+++ b/erts/emulator/pcre/pcre_exec.c
@@ -755,7 +755,7 @@ if (ecode == NULL)
     return match((PCRE_PUCHAR)&rdepth, NULL, NULL, 0, NULL, NULL, 1);
   else
     {
-    int len = (char *)&rdepth - (char *)eptr;
+    int len = (int)((char *)&rdepth - (char *)eptr);
     return (len > 0)? -len : len;
     }
   }
diff --git a/erts/emulator/pcre/pcre_internal.h b/erts/emulator/pcre/pcre_internal.h
index cc4f171438..c84dcb5a38 100644
--- a/erts/emulator/pcre/pcre_internal.h
+++ b/erts/emulator/pcre/pcre_internal.h
@@ -2791,6 +2791,9 @@ extern const pcre_uint8  PRIV(ucd_stage1)[];
 extern const pcre_uint16 PRIV(ucd_stage2)[];
 extern const pcre_uint32 PRIV(ucp_gentype)[];
 extern const pcre_uint32 PRIV(ucp_gbtable)[];
+#ifdef COMPILE_PCRE32
+extern const ucd_record  PRIV(dummy_ucd_record)[];
+#endif
 #ifdef SUPPORT_JIT
 extern const int         PRIV(ucp_typerange)[];
 #endif
@@ -2799,10 +2802,16 @@ extern const int         PRIV(ucp_typerange)[];
 /* UCD access macros */
 
 #define UCD_BLOCK_SIZE 128
-#define GET_UCD(ch) (PRIV(ucd_records) + \
+#define REAL_GET_UCD(ch) (PRIV(ucd_records) + \
         PRIV(ucd_stage2)[PRIV(ucd_stage1)[(int)(ch) / UCD_BLOCK_SIZE] * \
         UCD_BLOCK_SIZE + (int)(ch) % UCD_BLOCK_SIZE])
 
+#ifdef COMPILE_PCRE32
+#define GET_UCD(ch) ((ch > 0x10ffff)? PRIV(dummy_ucd_record) : REAL_GET_UCD(ch))
+#else
+#define GET_UCD(ch) REAL_GET_UCD(ch)
+#endif
+
 #define UCD_CHARTYPE(ch)    GET_UCD(ch)->chartype
 #define UCD_SCRIPT(ch)      GET_UCD(ch)->script
 #define UCD_CATEGORY(ch)    PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
diff --git a/erts/emulator/pcre/pcre_jit_compile.c b/erts/emulator/pcre/pcre_jit_compile.c
index 89400498f0..932ca2c389 100644
--- a/erts/emulator/pcre/pcre_jit_compile.c
+++ b/erts/emulator/pcre/pcre_jit_compile.c
@@ -487,7 +487,7 @@ typedef struct compare_context {
 #undef CMP
 
 /* Used for accessing the elements of the stack. */
-#define STACK(i)      ((-(i) - 1) * (int)sizeof(sljit_sw))
+#define STACK(i)      ((i) * (int)sizeof(sljit_sw))
 
 #define TMP1          SLJIT_R0
 #define TMP2          SLJIT_R2
@@ -552,13 +552,15 @@ the start pointers when the end of the capturing group has not yet reached. */
   sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w))
 #define CMPTO(type, src1, src1w, src2, src2w, label) \
   sljit_set_label(sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w)), (label))
-#define OP_FLAGS(op, dst, dstw, src, srcw, type) \
-  sljit_emit_op_flags(compiler, (op), (dst), (dstw), (src), (srcw), (type))
+#define OP_FLAGS(op, dst, dstw, type) \
+  sljit_emit_op_flags(compiler, (op), (dst), (dstw), (type))
 #define GET_LOCAL_BASE(dst, dstw, offset) \
   sljit_get_local_base(compiler, (dst), (dstw), (offset))
 
 #define READ_CHAR_MAX 0x7fffffff
 
+#define INVALID_UTF_CHAR 888
+
 static pcre_uchar *bracketend(pcre_uchar *cc)
 {
 SLJIT_ASSERT((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NOT) || (*cc >= OP_ONCE && *cc <= OP_SCOND));
@@ -784,7 +786,7 @@ switch(*cc)
 
   default:
   /* All opcodes are supported now! */
-  SLJIT_ASSERT_STOP();
+  SLJIT_UNREACHABLE();
   return NULL;
   }
 }
@@ -1660,9 +1662,9 @@ while (cc < ccend)
       {
       OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0));
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -OVECTOR(0));
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       setsom_found = TRUE;
       }
     cc += 1;
@@ -1676,9 +1678,9 @@ while (cc < ccend)
       {
       OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr);
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->mark_ptr);
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       setmark_found = TRUE;
       }
     cc += 1 + 2 + cc[1];
@@ -1689,27 +1691,27 @@ while (cc < ccend)
       {
       OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0));
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -OVECTOR(0));
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       setsom_found = TRUE;
       }
     if (common->mark_ptr != 0 && !setmark_found)
       {
       OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr);
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->mark_ptr);
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       setmark_found = TRUE;
       }
     if (common->capture_last_ptr != 0 && !capture_last_found)
       {
       OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr);
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->capture_last_ptr);
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       capture_last_found = TRUE;
       }
     cc += 1 + LINK_SIZE;
@@ -1723,20 +1725,20 @@ while (cc < ccend)
       {
       OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr);
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->capture_last_ptr);
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
-      stackpos += (int)sizeof(sljit_sw);
+      stackpos -= (int)sizeof(sljit_sw);
       capture_last_found = TRUE;
       }
     offset = (GET2(cc, 1 + LINK_SIZE)) << 1;
     OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, OVECTOR(offset));
-    stackpos += (int)sizeof(sljit_sw);
+    stackpos -= (int)sizeof(sljit_sw);
     OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset));
     OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1));
     OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0);
-    stackpos += (int)sizeof(sljit_sw);
+    stackpos -= (int)sizeof(sljit_sw);
     OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP2, 0);
-    stackpos += (int)sizeof(sljit_sw);
+    stackpos -= (int)sizeof(sljit_sw);
 
     cc += 1 + LINK_SIZE + IMM2_SIZE;
     break;
@@ -1887,18 +1889,17 @@ BOOL tmp1empty = TRUE;
 BOOL tmp2empty = TRUE;
 pcre_uchar *alternative;
 enum {
-  start,
   loop,
   end
 } status;
 
-status = save ? start : loop;
-stackptr = STACK(stackptr - 2);
+status = loop;
+stackptr = STACK(stackptr);
 stacktop = STACK(stacktop - 1);
 
 if (!save)
   {
-  stackptr += (needs_control_head ? 2 : 1) * sizeof(sljit_sw);
+  stacktop -= (needs_control_head ? 2 : 1) * sizeof(sljit_sw);
   if (stackptr < stacktop)
     {
     OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), stackptr);
@@ -1914,196 +1915,186 @@ if (!save)
   /* The tmp1next must be TRUE in either way. */
   }
 
+SLJIT_ASSERT(common->recursive_head_ptr != 0);
+
 do
   {
   count = 0;
-  switch(status)
+  if (cc >= ccend)
     {
-    case start:
-    SLJIT_ASSERT(save && common->recursive_head_ptr != 0);
+    if (!save)
+      break;
+
     count = 1;
     srcw[0] = common->recursive_head_ptr;
     if (needs_control_head)
       {
       SLJIT_ASSERT(common->control_head_ptr != 0);
       count = 2;
-      srcw[1] = common->control_head_ptr;
+      srcw[0] = common->control_head_ptr;
+      srcw[1] = common->recursive_head_ptr;
+      }
+    status = end;
+    }
+  else switch(*cc)
+    {
+    case OP_KET:
+    if (PRIVATE_DATA(cc) != 0)
+      {
+      count = 1;
+      srcw[0] = PRIVATE_DATA(cc);
+      SLJIT_ASSERT(PRIVATE_DATA(cc + 1) != 0);
+      cc += PRIVATE_DATA(cc + 1);
       }
-    status = loop;
+    cc += 1 + LINK_SIZE;
+    break;
+
+    case OP_ASSERT:
+    case OP_ASSERT_NOT:
+    case OP_ASSERTBACK:
+    case OP_ASSERTBACK_NOT:
+    case OP_ONCE:
+    case OP_ONCE_NC:
+    case OP_BRAPOS:
+    case OP_SBRA:
+    case OP_SBRAPOS:
+    case OP_SCOND:
+    count = 1;
+    srcw[0] = PRIVATE_DATA(cc);
+    SLJIT_ASSERT(srcw[0] != 0);
+    cc += 1 + LINK_SIZE;
     break;
 
-    case loop:
-    if (cc >= ccend)
+    case OP_CBRA:
+    case OP_SCBRA:
+    if (common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] == 0)
       {
-      status = end;
-      break;
+      count = 1;
+      srcw[0] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
       }
+    cc += 1 + LINK_SIZE + IMM2_SIZE;
+    break;
 
-    switch(*cc)
-      {
-      case OP_KET:
-      if (PRIVATE_DATA(cc) != 0)
-        {
-        count = 1;
-        srcw[0] = PRIVATE_DATA(cc);
-        SLJIT_ASSERT(PRIVATE_DATA(cc + 1) != 0);
-        cc += PRIVATE_DATA(cc + 1);
-        }
-      cc += 1 + LINK_SIZE;
-      break;
+    case OP_CBRAPOS:
+    case OP_SCBRAPOS:
+    count = 2;
+    srcw[0] = PRIVATE_DATA(cc);
+    srcw[1] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
+    SLJIT_ASSERT(srcw[0] != 0 && srcw[1] != 0);
+    cc += 1 + LINK_SIZE + IMM2_SIZE;
+    break;
 
-      case OP_ASSERT:
-      case OP_ASSERT_NOT:
-      case OP_ASSERTBACK:
-      case OP_ASSERTBACK_NOT:
-      case OP_ONCE:
-      case OP_ONCE_NC:
-      case OP_BRAPOS:
-      case OP_SBRA:
-      case OP_SBRAPOS:
-      case OP_SCOND:
+    case OP_COND:
+    /* Might be a hidden SCOND. */
+    alternative = cc + GET(cc, 1);
+    if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
+      {
       count = 1;
       srcw[0] = PRIVATE_DATA(cc);
       SLJIT_ASSERT(srcw[0] != 0);
-      cc += 1 + LINK_SIZE;
-      break;
-
-      case OP_CBRA:
-      case OP_SCBRA:
-      if (common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] == 0)
-        {
-        count = 1;
-        srcw[0] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
-        }
-      cc += 1 + LINK_SIZE + IMM2_SIZE;
-      break;
+      }
+    cc += 1 + LINK_SIZE;
+    break;
 
-      case OP_CBRAPOS:
-      case OP_SCBRAPOS:
-      count = 2;
+    CASE_ITERATOR_PRIVATE_DATA_1
+    if (PRIVATE_DATA(cc))
+      {
+      count = 1;
       srcw[0] = PRIVATE_DATA(cc);
-      srcw[1] = OVECTOR_PRIV(GET2(cc, 1 + LINK_SIZE));
-      SLJIT_ASSERT(srcw[0] != 0 && srcw[1] != 0);
-      cc += 1 + LINK_SIZE + IMM2_SIZE;
-      break;
-
-      case OP_COND:
-      /* Might be a hidden SCOND. */
-      alternative = cc + GET(cc, 1);
-      if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN)
-        {
-        count = 1;
-        srcw[0] = PRIVATE_DATA(cc);
-        SLJIT_ASSERT(srcw[0] != 0);
-        }
-      cc += 1 + LINK_SIZE;
-      break;
-
-      CASE_ITERATOR_PRIVATE_DATA_1
-      if (PRIVATE_DATA(cc))
-        {
-        count = 1;
-        srcw[0] = PRIVATE_DATA(cc);
-        }
-      cc += 2;
+      }
+    cc += 2;
 #ifdef SUPPORT_UTF
-      if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+    if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
 #endif
-      break;
+    break;
 
-      CASE_ITERATOR_PRIVATE_DATA_2A
-      if (PRIVATE_DATA(cc))
-        {
-        count = 2;
-        srcw[0] = PRIVATE_DATA(cc);
-        srcw[1] = PRIVATE_DATA(cc) + sizeof(sljit_sw);
-        }
-      cc += 2;
+    CASE_ITERATOR_PRIVATE_DATA_2A
+    if (PRIVATE_DATA(cc))
+      {
+      count = 2;
+      srcw[0] = PRIVATE_DATA(cc);
+      srcw[1] = PRIVATE_DATA(cc) + sizeof(sljit_sw);
+      }
+    cc += 2;
 #ifdef SUPPORT_UTF
-      if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+    if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
 #endif
-      break;
+    break;
 
-      CASE_ITERATOR_PRIVATE_DATA_2B
-      if (PRIVATE_DATA(cc))
-        {
-        count = 2;
-        srcw[0] = PRIVATE_DATA(cc);
-        srcw[1] = PRIVATE_DATA(cc) + sizeof(sljit_sw);
-        }
-      cc += 2 + IMM2_SIZE;
+    CASE_ITERATOR_PRIVATE_DATA_2B
+    if (PRIVATE_DATA(cc))
+      {
+      count = 2;
+      srcw[0] = PRIVATE_DATA(cc);
+      srcw[1] = PRIVATE_DATA(cc) + sizeof(sljit_sw);
+      }
+    cc += 2 + IMM2_SIZE;
 #ifdef SUPPORT_UTF
-      if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
+    if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]);
 #endif
-      break;
+    break;
 
-      CASE_ITERATOR_TYPE_PRIVATE_DATA_1
-      if (PRIVATE_DATA(cc))
+    CASE_ITERATOR_TYPE_PRIVATE_DATA_1
+    if (PRIVATE_DATA(cc))
+      {
+      count = 1;
+      srcw[0] = PRIVATE_DATA(cc);
+      }
+    cc += 1;
+    break;
+
+    CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
+    if (PRIVATE_DATA(cc))
+      {
+      count = 2;
+      srcw[0] = PRIVATE_DATA(cc);
+      srcw[1] = srcw[0] + sizeof(sljit_sw);
+      }
+    cc += 1;
+    break;
+
+    CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
+    if (PRIVATE_DATA(cc))
+      {
+      count = 2;
+      srcw[0] = PRIVATE_DATA(cc);
+      srcw[1] = srcw[0] + sizeof(sljit_sw);
+      }
+    cc += 1 + IMM2_SIZE;
+    break;
+
+    case OP_CLASS:
+    case OP_NCLASS:
+#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
+    case OP_XCLASS:
+    size = (*cc == OP_XCLASS) ? GET(cc, 1) : 1 + 32 / (int)sizeof(pcre_uchar);
+#else
+    size = 1 + 32 / (int)sizeof(pcre_uchar);
+#endif
+    if (PRIVATE_DATA(cc))
+      switch(get_class_iterator_size(cc + size))
         {
+        case 1:
         count = 1;
         srcw[0] = PRIVATE_DATA(cc);
-        }
-      cc += 1;
-      break;
+        break;
 
-      CASE_ITERATOR_TYPE_PRIVATE_DATA_2A
-      if (PRIVATE_DATA(cc))
-        {
+        case 2:
         count = 2;
         srcw[0] = PRIVATE_DATA(cc);
         srcw[1] = srcw[0] + sizeof(sljit_sw);
-        }
-      cc += 1;
-      break;
+        break;
 
-      CASE_ITERATOR_TYPE_PRIVATE_DATA_2B
-      if (PRIVATE_DATA(cc))
-        {
-        count = 2;
-        srcw[0] = PRIVATE_DATA(cc);
-        srcw[1] = srcw[0] + sizeof(sljit_sw);
+        default:
+        SLJIT_UNREACHABLE();
+        break;
         }
-      cc += 1 + IMM2_SIZE;
-      break;
-
-      case OP_CLASS:
-      case OP_NCLASS:
-#if defined SUPPORT_UTF || !defined COMPILE_PCRE8
-      case OP_XCLASS:
-      size = (*cc == OP_XCLASS) ? GET(cc, 1) : 1 + 32 / (int)sizeof(pcre_uchar);
-#else
-      size = 1 + 32 / (int)sizeof(pcre_uchar);
-#endif
-      if (PRIVATE_DATA(cc))
-        switch(get_class_iterator_size(cc + size))
-          {
-          case 1:
-          count = 1;
-          srcw[0] = PRIVATE_DATA(cc);
-          break;
-
-          case 2:
-          count = 2;
-          srcw[0] = PRIVATE_DATA(cc);
-          srcw[1] = srcw[0] + sizeof(sljit_sw);
-          break;
-
-          default:
-          SLJIT_ASSERT_STOP();
-          break;
-          }
-      cc += size;
-      break;
-
-      default:
-      cc = next_opcode(common, cc);
-      SLJIT_ASSERT(cc != NULL);
-      break;
-      }
+    cc += size;
     break;
 
-    case end:
-    SLJIT_ASSERT_STOP();
+    default:
+    cc = next_opcode(common, cc);
+    SLJIT_ASSERT(cc != NULL);
     break;
     }
 
@@ -2312,7 +2303,7 @@ static SLJIT_INLINE void count_match(compiler_common *common)
 {
 DEFINE_COMPILER;
 
-OP2(SLJIT_SUB | SLJIT_SET_E, COUNT_MATCH, 0, COUNT_MATCH, 0, SLJIT_IMM, 1);
+OP2(SLJIT_SUB | SLJIT_SET_Z, COUNT_MATCH, 0, COUNT_MATCH, 0, SLJIT_IMM, 1);
 add_jump(compiler, &common->calllimit, JUMP(SLJIT_ZERO));
 }
 
@@ -2322,7 +2313,7 @@ static SLJIT_INLINE void allocate_stack(compiler_common *common, int size)
 DEFINE_COMPILER;
 
 SLJIT_ASSERT(size > 0);
-OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw));
+OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw));
 #ifdef DESTROY_REGISTERS
 OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 12345);
 OP1(SLJIT_MOV, TMP3, 0, TMP1, 0);
@@ -2330,7 +2321,7 @@ OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0);
 OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, TMP1, 0);
 OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP1, 0);
 #endif
-add_stub(common, CMP(SLJIT_GREATER, STACK_TOP, 0, STACK_LIMIT, 0));
+add_stub(common, CMP(SLJIT_LESS, STACK_TOP, 0, STACK_LIMIT, 0));
 }
 
 static SLJIT_INLINE void free_stack(compiler_common *common, int size)
@@ -2338,7 +2329,7 @@ static SLJIT_INLINE void free_stack(compiler_common *common, int size)
 DEFINE_COMPILER;
 
 SLJIT_ASSERT(size > 0);
-OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw));
+OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw));
 }
 
 static sljit_uw * allocate_read_only_data(compiler_common *common, sljit_uw size)
@@ -2396,7 +2387,7 @@ else
   OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_IMM, length - 1);
   loop = LABEL();
   OP1(SLJIT_MOVU, SLJIT_MEM1(SLJIT_R1), sizeof(sljit_sw), SLJIT_R0, 0);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, 1);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, 1);
   JUMPTO(SLJIT_NOT_ZERO, loop);
   }
 }
@@ -2434,7 +2425,7 @@ else
   OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_IMM, length - 2);
   loop = LABEL();
   OP1(SLJIT_MOVU, SLJIT_MEM1(TMP2), sizeof(sljit_sw), TMP1, 0);
-  OP2(SLJIT_SUB | SLJIT_SET_E, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 1);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 1);
   JUMPTO(SLJIT_NOT_ZERO, loop);
   }
 
@@ -2452,22 +2443,22 @@ static sljit_sw SLJIT_CALL do_search_mark(sljit_sw *current, const pcre_uchar *s
 {
 while (current != NULL)
   {
-  switch (current[-2])
+  switch (current[1])
     {
     case type_then_trap:
     break;
 
     case type_mark:
-    if (STRCMP_UC_UC(skip_arg, (pcre_uchar *)current[-3]) == 0)
-      return current[-4];
+    if (STRCMP_UC_UC(skip_arg, (pcre_uchar *)current[2]) == 0)
+      return current[3];
     break;
 
     default:
-    SLJIT_ASSERT_STOP();
+    SLJIT_UNREACHABLE();
     break;
     }
-  SLJIT_ASSERT(current > (sljit_sw*)current[-1]);
-  current = (sljit_sw*)current[-1];
+  SLJIT_ASSERT(current[0] == 0 || current < (sljit_sw*)current[0]);
+  current = (sljit_sw*)current[0];
   }
 return -1;
 }
@@ -2501,7 +2492,7 @@ OP2(SLJIT_ADD, SLJIT_S0, 0, SLJIT_S0, 0, SLJIT_IMM, sizeof(sljit_sw));
 OP2(SLJIT_ASHR, SLJIT_S1, 0, SLJIT_S1, 0, SLJIT_IMM, UCHAR_SHIFT);
 #endif
 OP1(SLJIT_MOVU_S32, SLJIT_MEM1(SLJIT_R2), sizeof(int), SLJIT_S1, 0);
-OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1);
+OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1);
 JUMPTO(SLJIT_NOT_ZERO, loop);
 JUMPHERE(early_quit);
 
@@ -3106,8 +3097,8 @@ if (common->utf)
   OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
   /* Skip low surrogate if necessary. */
   OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xdc00);
-  OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xdc00);
+  OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_EQUAL);
   OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
   OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
   return;
@@ -3126,6 +3117,7 @@ struct sljit_jump *jump;
 if (nltype == NLTYPE_ANY)
   {
   add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL));
+  sljit_set_current_flags(compiler, SLJIT_SET_Z);
   add_jump(compiler, backtracks, JUMP(jumpifmatch ? SLJIT_NOT_ZERO : SLJIT_ZERO));
   }
 else if (nltype == NLTYPE_ANYCRLF)
@@ -3167,7 +3159,7 @@ OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
 OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
 
 /* Searching for the first zero. */
-OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x800);
+OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x800);
 jump = JUMP(SLJIT_NOT_ZERO);
 /* Two byte sequence. */
 OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
@@ -3181,7 +3173,7 @@ OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6);
 OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
 OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
 
-OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x10000);
+OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x10000);
 jump = JUMP(SLJIT_NOT_ZERO);
 /* Three byte sequence. */
 OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
@@ -3215,15 +3207,15 @@ OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f);
 OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0);
 
 /* Searching for the first zero. */
-OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x800);
+OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x800);
 jump = JUMP(SLJIT_NOT_ZERO);
 /* Two byte sequence. */
 OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
 sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
 
 JUMPHERE(jump);
-OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x400);
-OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_NOT_ZERO);
+OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x400);
+OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_NOT_ZERO);
 /* This code runs only in 8 bit mode. No need to shift the value. */
 OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0);
 OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
@@ -3246,7 +3238,7 @@ struct sljit_jump *compare;
 
 sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
 
-OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0x20);
+OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0x20);
 jump = JUMP(SLJIT_NOT_ZERO);
 /* Two byte sequence. */
 OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
@@ -3287,10 +3279,30 @@ static void do_getucd(compiler_common *common)
 /* Search the UCD record for the character comes in TMP1.
 Returns chartype in TMP1 and UCD offset in TMP2. */
 DEFINE_COMPILER;
+#ifdef COMPILE_PCRE32
+struct sljit_jump *jump;
+#endif
+
+#if defined SLJIT_DEBUG && SLJIT_DEBUG
+/* dummy_ucd_record */
+const ucd_record *record = GET_UCD(INVALID_UTF_CHAR);
+SLJIT_ASSERT(record->script == ucp_Common && record->chartype == ucp_Cn && record->gbprop == ucp_gbOther);
+SLJIT_ASSERT(record->caseset == 0 && record->other_case == 0);
+#endif
 
 SLJIT_ASSERT(UCD_BLOCK_SIZE == 128 && sizeof(ucd_record) == 8);
 
 sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
+
+#ifdef COMPILE_PCRE32
+if (!common->utf)
+  {
+  jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x10ffff + 1);
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR);
+  JUMPHERE(jump);
+  }
+#endif
+
 OP2(SLJIT_LSHR, TMP2, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
 OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_stage1));
 OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_MASK);
@@ -3365,8 +3377,8 @@ if (newlinecheck)
   OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
   end = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
   OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, common->newline & 0xff);
-  OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, common->newline & 0xff);
+  OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_EQUAL);
 #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
   OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT);
 #endif
@@ -3403,8 +3415,8 @@ if (common->utf)
   {
   singlechar = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
   OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
-  OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
+  OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_EQUAL);
   OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
   OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
   JUMPHERE(singlechar);
@@ -3853,7 +3865,7 @@ while (TRUE)
   }
 }
 
-#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
+#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86) && !(defined SUPPORT_VALGRIND)
 
 static sljit_s32 character_to_int32(pcre_uchar chr)
 {
@@ -4019,6 +4031,7 @@ instruction[0] = 0x0f;
 instruction[1] = 0xbc;
 instruction[2] = 0xc0 | (tmp1_ind << 3) | tmp1_ind;
 sljit_emit_op_custom(compiler, instruction, 3);
+sljit_set_current_flags(compiler, SLJIT_SET_Z);
 
 nomatch = JUMP(SLJIT_ZERO);
 
@@ -4119,6 +4132,7 @@ instruction[0] = 0x0f;
 instruction[1] = 0xbc;
 instruction[2] = 0xc0 | (tmp1_ind << 3) | tmp1_ind;
 sljit_emit_op_custom(compiler, instruction, 3);
+sljit_set_current_flags(compiler, SLJIT_SET_Z);
 
 JUMPTO(SLJIT_ZERO, start);
 
@@ -4155,18 +4169,8 @@ if (has_match_end)
   OP1(SLJIT_MOV, TMP3, 0, STR_END, 0);
 
   OP2(SLJIT_ADD, STR_END, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr, SLJIT_IMM, IN_UCHARS(offset + 1));
-#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
-  if (sljit_x86_is_cmov_available())
-    {
-    OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, STR_END, 0, TMP3, 0);
-    sljit_x86_emit_cmov(compiler, SLJIT_GREATER, STR_END, TMP3, 0);
-    }
-#endif
-    {
-    quit = CMP(SLJIT_LESS_EQUAL, STR_END, 0, TMP3, 0);
-    OP1(SLJIT_MOV, STR_END, 0, TMP3, 0);
-    JUMPHERE(quit);
-    }
+  OP2(SLJIT_SUB | SLJIT_SET_GREATER, SLJIT_UNUSED, 0, STR_END, 0, TMP3, 0);
+  sljit_emit_cmov(compiler, SLJIT_GREATER, STR_END, TMP3, 0);
   }
 
 #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
@@ -4174,11 +4178,11 @@ if (common->utf && offset > 0)
   utf_start = LABEL();
 #endif
 
-#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
+#if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86) && !(defined SUPPORT_VALGRIND)
 
 /* SSE2 accelerated first character search. */
 
-if (sljit_x86_is_sse2_available())
+if (sljit_has_cpu_feature(SLJIT_HAS_SSE2))
   {
   fast_forward_first_char2_sse2(common, char1, char2);
 
@@ -4213,16 +4217,16 @@ if (sljit_x86_is_sse2_available())
     if (offset > 0)
       OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offset));
     }
-  else if (sljit_x86_is_cmov_available())
-    {
-    OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, STR_PTR, 0, STR_END, 0);
-    sljit_x86_emit_cmov(compiler, SLJIT_GREATER_EQUAL, STR_PTR, has_match_end ? SLJIT_MEM1(SLJIT_SP) : STR_END, has_match_end ? common->match_end_ptr : 0);
-    }
   else
     {
-    quit = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0);
-    OP1(SLJIT_MOV, STR_PTR, 0, has_match_end ? SLJIT_MEM1(SLJIT_SP) : STR_END, has_match_end ? common->match_end_ptr : 0);
-    JUMPHERE(quit);
+    OP2(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, SLJIT_UNUSED, 0, STR_PTR, 0, STR_END, 0);
+    if (has_match_end)
+      {
+      OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr);
+      sljit_emit_cmov(compiler, SLJIT_GREATER_EQUAL, STR_PTR, TMP1, 0);
+      }
+    else
+      sljit_emit_cmov(compiler, SLJIT_GREATER_EQUAL, STR_PTR, STR_END, 0);
     }
 
   if (has_match_end)
@@ -4249,10 +4253,10 @@ else
     }
   else
     {
-    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, char1);
-    OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
-    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, char2);
-    OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+    OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, char1);
+    OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL);
+    OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, char2);
+    OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_EQUAL);
     found = JUMP(SLJIT_NOT_ZERO);
     }
   }
@@ -4571,8 +4575,8 @@ if (common->nltype == NLTYPE_FIXED && common->newline > 255)
   firstchar = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP2, 0);
 
   OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(2));
-  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, STR_PTR, 0, TMP1, 0);
-  OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_GREATER_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, SLJIT_UNUSED, 0, STR_PTR, 0, TMP1, 0);
+  OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_GREATER_EQUAL);
 #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
   OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCHAR_SHIFT);
 #endif
@@ -4616,8 +4620,8 @@ if (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF)
   JUMPHERE(foundcr);
   notfoundnl = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0);
   OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_NL);
-  OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, CHAR_NL);
+  OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_EQUAL);
 #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
   OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT);
 #endif
@@ -4670,7 +4674,7 @@ if (!check_class_ranges(common, start_bits, (start_bits[31] & 0x80) != 0, TRUE,
   OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
   OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)start_bits);
   OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
-  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+  OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
   found = JUMP(SLJIT_NOT_ZERO);
   }
 
@@ -4692,8 +4696,8 @@ if (common->utf)
   {
   CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xd800, start);
   OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
-  OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
+  OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_EQUAL);
   OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
   OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
   }
@@ -4780,31 +4784,31 @@ struct sljit_jump *jump;
 struct sljit_label *mainloop;
 
 sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
-OP1(SLJIT_MOV, TMP1, 0, STACK_TOP, 0);
-GET_LOCAL_BASE(TMP3, 0, 0);
+OP1(SLJIT_MOV, TMP3, 0, STACK_TOP, 0);
+GET_LOCAL_BASE(TMP1, 0, 0);
 
 /* Drop frames until we reach STACK_TOP. */
 mainloop = LABEL();
-OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), 0);
-OP2(SLJIT_SUB | SLJIT_SET_S, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, 0);
-jump = JUMP(SLJIT_SIG_LESS_EQUAL);
-
-OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP3, 0);
-OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, SLJIT_MEM1(TMP1), sizeof(sljit_sw));
-OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), sizeof(sljit_sw), SLJIT_MEM1(TMP1), 2 * sizeof(sljit_sw));
-OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 3 * sizeof(sljit_sw));
+OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), -sizeof(sljit_sw));
+jump = CMP(SLJIT_SIG_LESS_EQUAL, TMP2, 0, SLJIT_IMM, 0);
+
+OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, SLJIT_MEM1(STACK_TOP), -2 * sizeof(sljit_sw));
+OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), sizeof(sljit_sw), SLJIT_MEM1(STACK_TOP), -3 * sizeof(sljit_sw));
+OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 3 * sizeof(sljit_sw));
 JUMPTO(SLJIT_JUMP, mainloop);
 
 JUMPHERE(jump);
-jump = JUMP(SLJIT_SIG_LESS);
-/* End of dropping frames. */
+jump = CMP(SLJIT_NOT_ZERO /* SIG_LESS */, TMP2, 0, SLJIT_IMM, 0);
+/* End of reverting values. */
+OP1(SLJIT_MOV, STACK_TOP, 0, TMP3, 0);
 sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
 
 JUMPHERE(jump);
 OP1(SLJIT_NEG, TMP2, 0, TMP2, 0);
-OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP3, 0);
-OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, SLJIT_MEM1(TMP1), sizeof(sljit_sw));
-OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 2 * sizeof(sljit_sw));
+OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0);
+OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, SLJIT_MEM1(STACK_TOP), -2 * sizeof(sljit_sw));
+OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 2 * sizeof(sljit_sw));
 JUMPTO(SLJIT_JUMP, mainloop);
 }
 
@@ -4837,11 +4841,11 @@ if (common->use_ucp)
   jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE);
   add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
   OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Ll);
-  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
-  OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
+  OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL);
   OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Nd - ucp_Ll);
-  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd);
-  OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd);
+  OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL);
   JUMPHERE(jump);
   OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP2, 0);
   }
@@ -4881,11 +4885,11 @@ if (common->use_ucp)
   jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE);
   add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL));
   OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Ll);
-  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
-  OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
+  OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL);
   OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Nd - ucp_Ll);
-  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd);
-  OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd);
+  OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL);
   JUMPHERE(jump);
   }
 else
@@ -4913,7 +4917,7 @@ else
   }
 set_jumps(skipread_list, LABEL());
 
-OP2(SLJIT_XOR | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_MEM1(SLJIT_SP), LOCALS1);
+OP2(SLJIT_XOR | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_MEM1(SLJIT_SP), LOCALS1);
 sljit_emit_fast_return(compiler, SLJIT_MEM1(SLJIT_SP), LOCALS0);
 }
 
@@ -5064,7 +5068,7 @@ switch(length)
   return TRUE;
 
   default:
-  SLJIT_ASSERT_STOP();
+  SLJIT_UNREACHABLE();
   return FALSE;
   }
 }
@@ -5077,22 +5081,22 @@ DEFINE_COMPILER;
 sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
 
 OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0a);
-OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a);
-OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
-OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a);
+OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a);
+OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a);
 #if defined SUPPORT_UTF || defined COMPILE_PCRE16 || defined COMPILE_PCRE32
 #ifdef COMPILE_PCRE8
 if (common->utf)
   {
 #endif
-  OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+  OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
   OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a);
 #ifdef COMPILE_PCRE8
   }
 #endif
 #endif /* SUPPORT_UTF || COMPILE_PCRE16 || COMPILE_PCRE32 */
-OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_EQUAL);
 sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
 }
 
@@ -5103,34 +5107,34 @@ DEFINE_COMPILER;
 
 sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
 
-OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x09);
-OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
-OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x20);
-OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
-OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xa0);
+OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x09);
+OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x20);
+OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xa0);
 #if defined SUPPORT_UTF || defined COMPILE_PCRE16 || defined COMPILE_PCRE32
 #ifdef COMPILE_PCRE8
 if (common->utf)
   {
 #endif
-  OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x1680);
-  OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e);
-  OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+  OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x1680);
+  OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e);
+  OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
   OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x2000);
-  OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x200A - 0x2000);
-  OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x202f - 0x2000);
-  OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x205f - 0x2000);
-  OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x3000 - 0x2000);
+  OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x200A - 0x2000);
+  OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x202f - 0x2000);
+  OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x205f - 0x2000);
+  OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x3000 - 0x2000);
 #ifdef COMPILE_PCRE8
   }
 #endif
 #endif /* SUPPORT_UTF || COMPILE_PCRE16 || COMPILE_PCRE32 */
-OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_EQUAL);
 
 sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
 }
@@ -5143,22 +5147,22 @@ DEFINE_COMPILER;
 sljit_emit_fast_enter(compiler, RETURN_ADDR, 0);
 
 OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0a);
-OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a);
-OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
-OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a);
+OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a);
+OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL);
+OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a);
 #if defined SUPPORT_UTF || defined COMPILE_PCRE16 || defined COMPILE_PCRE32
 #ifdef COMPILE_PCRE8
 if (common->utf)
   {
 #endif
-  OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+  OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
   OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a);
 #ifdef COMPILE_PCRE8
   }
 #endif
 #endif /* SUPPORT_UTF || COMPILE_PCRE16 || COMPILE_PCRE32 */
-OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_EQUAL);
 
 sljit_emit_fast_return(compiler, RETURN_ADDR, 0);
 }
@@ -5183,7 +5187,7 @@ label = LABEL();
 OP1(MOVU_UCHAR, CHAR1, 0, SLJIT_MEM1(TMP1), IN_UCHARS(1));
 OP1(MOVU_UCHAR, CHAR2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
 jump = CMP(SLJIT_NOT_EQUAL, CHAR1, 0, CHAR2, 0);
-OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
 JUMPTO(SLJIT_NOT_ZERO, label);
 
 JUMPHERE(jump);
@@ -5227,7 +5231,7 @@ OP1(SLJIT_MOV_U8, CHAR2, 0, SLJIT_MEM2(LCC_TABLE, CHAR2), 0);
 JUMPHERE(jump);
 #endif
 jump = CMP(SLJIT_NOT_EQUAL, CHAR1, 0, CHAR2, 0);
-OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
+OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1));
 JUMPTO(SLJIT_NOT_ZERO, label);
 
 JUMPHERE(jump);
@@ -5394,7 +5398,7 @@ do
 #endif
 
       default:
-      SLJIT_ASSERT_STOP();
+      SLJIT_UNREACHABLE();
       break;
       }
     context->ucharptr = 0;
@@ -5568,7 +5572,7 @@ while (*cc != XCL_END)
       break;
 
       default:
-      SLJIT_ASSERT_STOP();
+      SLJIT_UNREACHABLE();
       break;
       }
     cc += 2;
@@ -5592,7 +5596,7 @@ if ((cc[-1] & XCL_HASPROP) == 0)
       OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
       OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)cc);
       OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
-      OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+      OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
       add_jump(compiler, &found, JUMP(SLJIT_NOT_ZERO));
       }
 
@@ -5625,7 +5629,7 @@ else if ((cc[-1] & XCL_MAP) != 0)
     OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
     OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)cc);
     OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
-    OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+    OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
     add_jump(compiler, list, JUMP(SLJIT_NOT_ZERO));
 
 #ifdef COMPILE_PCRE8
@@ -5644,6 +5648,15 @@ if (needstype || needsscript)
   if (needschar && !charsaved)
     OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0);
 
+#ifdef COMPILE_PCRE32
+  if (!common->utf)
+    {
+    jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x10ffff + 1);
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR);
+    JUMPHERE(jump);
+    }
+#endif
+
   OP2(SLJIT_LSHR, TMP2, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_SHIFT);
   OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_stage1));
   OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_MASK);
@@ -5735,14 +5748,14 @@ while (*cc != XCL_END)
 
     if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE))
       {
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
-      OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, numberofcmps == 0 ? SLJIT_UNUSED : TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
+      OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
       numberofcmps++;
       }
     else if (numberofcmps > 0)
       {
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
-      OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
+      OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_EQUAL);
       jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
       numberofcmps = 0;
       }
@@ -5761,14 +5774,14 @@ while (*cc != XCL_END)
 
     if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE))
       {
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
-      OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, numberofcmps == 0 ? SLJIT_UNUSED : TMP2, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
+      OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL);
       numberofcmps++;
       }
     else if (numberofcmps > 0)
       {
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
-      OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset));
+      OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_LESS_EQUAL);
       jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
       numberofcmps = 0;
       }
@@ -5793,12 +5806,12 @@ while (*cc != XCL_END)
       break;
 
       case PT_LAMP:
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lu - typeoffset);
-      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Ll - typeoffset);
-      OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lt - typeoffset);
-      OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lu - typeoffset);
+      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Ll - typeoffset);
+      OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lt - typeoffset);
+      OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_EQUAL);
       jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
       break;
 
@@ -5820,33 +5833,33 @@ while (*cc != XCL_END)
       case PT_SPACE:
       case PT_PXSPACE:
       SET_CHAR_OFFSET(9);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd - 0x9);
-      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd - 0x9);
+      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL);
 
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x9);
-      OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x85 - 0x9);
+      OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
 
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e - 0x9);
-      OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e - 0x9);
+      OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
 
       SET_TYPE_OFFSET(ucp_Zl);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Zs - ucp_Zl);
-      OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Zs - ucp_Zl);
+      OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_LESS_EQUAL);
       jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
       break;
 
       case PT_WORD:
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_UNDERSCORE - charoffset));
-      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_UNDERSCORE - charoffset));
+      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL);
       /* Fall through. */
 
       case PT_ALNUM:
       SET_TYPE_OFFSET(ucp_Ll);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
-      OP_FLAGS((*cc == PT_ALNUM) ? SLJIT_MOV : SLJIT_OR, TMP2, 0, (*cc == PT_ALNUM) ? SLJIT_UNUSED : TMP2, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Lu - ucp_Ll);
+      OP_FLAGS((*cc == PT_ALNUM) ? SLJIT_MOV : SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL);
       SET_TYPE_OFFSET(ucp_Nd);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_No - ucp_Nd);
-      OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_No - ucp_Nd);
+      OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_LESS_EQUAL);
       jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
       break;
 
@@ -5868,8 +5881,8 @@ while (*cc != XCL_END)
           OP2(SLJIT_ADD, TMP2, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)charoffset);
           OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, other_cases[1] ^ other_cases[0]);
           }
-        OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, other_cases[1]);
-        OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
+        OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, other_cases[1]);
+        OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL);
         other_cases += 2;
         }
       else if (is_powerof2(other_cases[2] ^ other_cases[1]))
@@ -5881,63 +5894,63 @@ while (*cc != XCL_END)
           OP2(SLJIT_ADD, TMP2, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)charoffset);
           OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, other_cases[1] ^ other_cases[0]);
           }
-        OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, other_cases[2]);
-        OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
+        OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP2, 0, SLJIT_IMM, other_cases[2]);
+        OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL);
 
-        OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(other_cases[0] - charoffset));
-        OP_FLAGS(SLJIT_OR | ((other_cases[3] == NOTACHAR) ? SLJIT_SET_E : 0), TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+        OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(other_cases[0] - charoffset));
+        OP_FLAGS(SLJIT_OR | ((other_cases[3] == NOTACHAR) ? SLJIT_SET_Z : 0), TMP2, 0, SLJIT_EQUAL);
 
         other_cases += 3;
         }
       else
         {
-        OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(*other_cases++ - charoffset));
-        OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
+        OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(*other_cases++ - charoffset));
+        OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL);
         }
 
       while (*other_cases != NOTACHAR)
         {
-        OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(*other_cases++ - charoffset));
-        OP_FLAGS(SLJIT_OR | ((*other_cases == NOTACHAR) ? SLJIT_SET_E : 0), TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+        OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(*other_cases++ - charoffset));
+        OP_FLAGS(SLJIT_OR | ((*other_cases == NOTACHAR) ? SLJIT_SET_Z : 0), TMP2, 0, SLJIT_EQUAL);
         }
       jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
       break;
 
       case PT_UCNC:
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_DOLLAR_SIGN - charoffset));
-      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_COMMERCIAL_AT - charoffset));
-      OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_GRAVE_ACCENT - charoffset));
-      OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_DOLLAR_SIGN - charoffset));
+      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_COMMERCIAL_AT - charoffset));
+      OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_GRAVE_ACCENT - charoffset));
+      OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
 
       SET_CHAR_OFFSET(0xa0);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(0xd7ff - charoffset));
-      OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(0xd7ff - charoffset));
+      OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL);
       SET_CHAR_OFFSET(0);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xe000 - 0);
-      OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_GREATER_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xe000 - 0);
+      OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_GREATER_EQUAL);
       jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
       break;
 
       case PT_PXGRAPH:
       /* C and Z groups are the farthest two groups. */
       SET_TYPE_OFFSET(ucp_Ll);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Ll);
-      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_GREATER);
+      OP2(SLJIT_SUB | SLJIT_SET_GREATER, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Ll);
+      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_GREATER);
 
       jump = CMP(SLJIT_NOT_EQUAL, typereg, 0, SLJIT_IMM, ucp_Cf - ucp_Ll);
 
       /* In case of ucp_Cf, we overwrite the result. */
       SET_CHAR_OFFSET(0x2066);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2069 - 0x2066);
-      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2069 - 0x2066);
+      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL);
 
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x061c - 0x2066);
-      OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x061c - 0x2066);
+      OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
 
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e - 0x2066);
-      OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x180e - 0x2066);
+      OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
 
       JUMPHERE(jump);
       jump = CMP(SLJIT_ZERO ^ invertcmp, TMP2, 0, SLJIT_IMM, 0);
@@ -5946,21 +5959,21 @@ while (*cc != XCL_END)
       case PT_PXPRINT:
       /* C and Z groups are the farthest two groups. */
       SET_TYPE_OFFSET(ucp_Ll);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Ll);
-      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_GREATER);
+      OP2(SLJIT_SUB | SLJIT_SET_GREATER, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Ll);
+      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_GREATER);
 
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Zs - ucp_Ll);
-      OP_FLAGS(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_NOT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Zs - ucp_Ll);
+      OP_FLAGS(SLJIT_AND, TMP2, 0, SLJIT_NOT_EQUAL);
 
       jump = CMP(SLJIT_NOT_EQUAL, typereg, 0, SLJIT_IMM, ucp_Cf - ucp_Ll);
 
       /* In case of ucp_Cf, we overwrite the result. */
       SET_CHAR_OFFSET(0x2066);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2069 - 0x2066);
-      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x2069 - 0x2066);
+      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL);
 
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x061c - 0x2066);
-      OP_FLAGS(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x061c - 0x2066);
+      OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL);
 
       JUMPHERE(jump);
       jump = CMP(SLJIT_ZERO ^ invertcmp, TMP2, 0, SLJIT_IMM, 0);
@@ -5968,21 +5981,21 @@ while (*cc != XCL_END)
 
       case PT_PXPUNCT:
       SET_TYPE_OFFSET(ucp_Sc);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Sc);
-      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_So - ucp_Sc);
+      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL);
 
       SET_CHAR_OFFSET(0);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x7f);
-      OP_FLAGS(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0x7f);
+      OP_FLAGS(SLJIT_AND, TMP2, 0, SLJIT_LESS_EQUAL);
 
       SET_TYPE_OFFSET(ucp_Pc);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Ps - ucp_Pc);
-      OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_LESS_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, SLJIT_UNUSED, 0, typereg, 0, SLJIT_IMM, ucp_Ps - ucp_Pc);
+      OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_LESS_EQUAL);
       jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp);
       break;
 
       default:
-      SLJIT_ASSERT_STOP();
+      SLJIT_UNREACHABLE();
       break;
       }
     cc += 2;
@@ -6028,6 +6041,7 @@ switch(type)
   case OP_NOT_WORD_BOUNDARY:
   case OP_WORD_BOUNDARY:
   add_jump(compiler, &common->wordboundary, JUMP(SLJIT_FAST_CALL));
+  sljit_set_current_flags(compiler, SLJIT_SET_Z);
   add_jump(compiler, backtracks, JUMP(type == OP_NOT_WORD_BOUNDARY ? SLJIT_NOT_ZERO : SLJIT_ZERO));
   return cc;
 
@@ -6043,10 +6057,10 @@ switch(type)
     else
       {
       jump[1] = CMP(SLJIT_EQUAL, TMP2, 0, STR_END, 0);
-      OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP2, 0, STR_END, 0);
-      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_UNUSED, 0, SLJIT_LESS);
-      OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff);
-      OP_FLAGS(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_NOT_EQUAL);
+      OP2(SLJIT_SUB | SLJIT_SET_LESS, SLJIT_UNUSED, 0, TMP2, 0, STR_END, 0);
+      OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff);
+      OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_NOT_EQUAL);
       add_jump(compiler, backtracks, JUMP(SLJIT_NOT_EQUAL));
       check_partial(common, TRUE);
       add_jump(compiler, backtracks, JUMP(SLJIT_JUMP));
@@ -6068,9 +6082,9 @@ switch(type)
     OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0));
     jump[1] = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR);
     OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2));
-    OP2(SLJIT_SUB | SLJIT_SET_U, SLJIT_UNUSED, 0, TMP2, 0, STR_END, 0);
+    OP2(SLJIT_SUB | SLJIT_SET_Z | SLJIT_SET_GREATER, SLJIT_UNUSED, 0, TMP2, 0, STR_END, 0);
     jump[2] = JUMP(SLJIT_GREATER);
-    add_jump(compiler, backtracks, JUMP(SLJIT_LESS));
+    add_jump(compiler, backtracks, JUMP(SLJIT_NOT_EQUAL) /* LESS */);
     /* Equal. */
     OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1));
     jump[3] = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL);
@@ -6089,6 +6103,7 @@ switch(type)
       read_char_range(common, common->nlmin, common->nlmax, TRUE);
       add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, STR_END, 0));
       add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL));
+      sljit_set_current_flags(compiler, SLJIT_SET_Z);
       add_jump(compiler, backtracks, JUMP(SLJIT_ZERO));
       OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), LOCALS1);
       }
@@ -6204,7 +6219,7 @@ switch(type)
     label = LABEL();
     add_jump(compiler, backtracks, CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP3, 0));
     skip_char_back(common);
-    OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);
+    OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, TMP2, 0, SLJIT_IMM, 1);
     JUMPTO(SLJIT_NOT_ZERO, label);
     }
   else
@@ -6217,7 +6232,7 @@ switch(type)
   check_start_used_ptr(common);
   return cc + LINK_SIZE;
   }
-SLJIT_ASSERT_STOP();
+SLJIT_UNREACHABLE();
 return cc;
 }
 
@@ -6250,7 +6265,7 @@ switch(type)
 #endif
     read_char8_type(common, type == OP_NOT_DIGIT);
     /* Flip the starting bit in the negative case. */
-  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_digit);
+  OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_digit);
   add_jump(compiler, backtracks, JUMP(type == OP_DIGIT ? SLJIT_ZERO : SLJIT_NOT_ZERO));
   return cc;
 
@@ -6264,7 +6279,7 @@ switch(type)
   else
 #endif
     read_char8_type(common, type == OP_NOT_WHITESPACE);
-  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_space);
+  OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_space);
   add_jump(compiler, backtracks, JUMP(type == OP_WHITESPACE ? SLJIT_ZERO : SLJIT_NOT_ZERO));
   return cc;
 
@@ -6278,7 +6293,7 @@ switch(type)
   else
 #endif
     read_char8_type(common, type == OP_NOT_WORDCHAR);
-  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_word);
+  OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, ctype_word);
   add_jump(compiler, backtracks, JUMP(type == OP_WORDCHAR ? SLJIT_ZERO : SLJIT_NOT_ZERO));
   return cc;
 
@@ -6320,8 +6335,8 @@ switch(type)
 #elif defined COMPILE_PCRE16
     jump[0] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xd800);
     OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00);
-    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
-    OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_UNUSED, 0, SLJIT_EQUAL);
+    OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, SLJIT_IMM, 0xd800);
+    OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_EQUAL);
     OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
     OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0);
 #endif
@@ -6383,6 +6398,7 @@ switch(type)
     detect_partial_match(common, backtracks);
   read_char_range(common, 0x9, 0x3000, type == OP_NOT_HSPACE);
   add_jump(compiler, &common->hspace, JUMP(SLJIT_FAST_CALL));
+  sljit_set_current_flags(compiler, SLJIT_SET_Z);
   add_jump(compiler, backtracks, JUMP(type == OP_NOT_HSPACE ? SLJIT_NOT_ZERO : SLJIT_ZERO));
   return cc;
 
@@ -6392,6 +6408,7 @@ switch(type)
     detect_partial_match(common, backtracks);
   read_char_range(common, 0xa, 0x2029, type == OP_NOT_VSPACE);
   add_jump(compiler, &common->vspace, JUMP(SLJIT_FAST_CALL));
+  sljit_set_current_flags(compiler, SLJIT_SET_Z);
   add_jump(compiler, backtracks, JUMP(type == OP_NOT_VSPACE ? SLJIT_NOT_ZERO : SLJIT_ZERO));
   return cc;
 
@@ -6418,7 +6435,7 @@ switch(type)
   OP1(SLJIT_MOV_U32, TMP1, 0, SLJIT_MEM1(STACK_TOP), (sljit_sw)PRIV(ucp_gbtable));
   OP1(SLJIT_MOV, STACK_TOP, 0, TMP2, 0);
   OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
-  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+  OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
   JUMPTO(SLJIT_NOT_ZERO, label);
 
   OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0);
@@ -6587,7 +6604,7 @@ switch(type)
   OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3);
   OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)cc);
   OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0);
-  OP2(SLJIT_AND | SLJIT_SET_E, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
+  OP2(SLJIT_AND | SLJIT_SET_Z, SLJIT_UNUSED, 0, TMP1, 0, TMP2, 0);
   add_jump(compiler, backtracks, JUMP(SLJIT_ZERO));
 
 #if defined SUPPORT_UTF || !defined COMPILE_PCRE8
@@ -6604,7 +6621,7 @@ switch(type)
   return cc + GET(cc, 0) - 1;
 #endif
   }
-SLJIT_ASSERT_STOP();
+SLJIT_UNREACHABLE();
 return cc;
 }
 
@@ -6790,9 +6807,9 @@ else
 #endif /* SUPPORT_UTF && SUPPORT_UCP */
   {
   if (ref)
-    OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP1, 0);
+    OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP1, 0);
   else
-    OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw), TMP1, 0);
+    OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw), TMP1, 0);
 
   if (withchecks)
     jump = JUMP(SLJIT_ZERO);
@@ -6883,7 +6900,7 @@ switch(type)
   cc += 1 + IMM2_SIZE + 1 + 2 * IMM2_SIZE;
   break;
   default:
-  SLJIT_ASSERT_STOP();
+  SLJIT_UNREACHABLE();
   break;
   }
 
@@ -6897,7 +6914,7 @@ if (!minimize)
     OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
     OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0);
     /* Temporary release of STR_PTR. */
-    OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+    OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
     /* Handles both invalid and empty cases. Since the minimum repeat,
     is zero the invalid case is basically the same as an empty case. */
     if (ref)
@@ -6910,7 +6927,7 @@ if (!minimize)
       zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw));
       }
     /* Restore if not zero length. */
-    OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+    OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
     }
   else
     {
@@ -7157,7 +7174,7 @@ return (*PUBL(callout))(callout_block);
     (((int)sizeof(PUBL(callout_block)) + 7) & ~7)
 
 #define CALLOUT_ARG_OFFSET(arg) \
-    (-CALLOUT_ARG_SIZE + SLJIT_OFFSETOF(PUBL(callout_block), arg))
+    SLJIT_OFFSETOF(PUBL(callout_block), arg)
 
 static SLJIT_INLINE pcre_uchar *compile_callout_matchingpath(compiler_common *common, pcre_uchar *cc, backtrack_common *parent)
 {
@@ -7187,7 +7204,8 @@ OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(mark), (common->mark_pt
 
 /* Needed to save important temporary registers. */
 OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, STACK_TOP, 0);
-OP2(SLJIT_SUB, SLJIT_R1, 0, STACK_TOP, 0, SLJIT_IMM, CALLOUT_ARG_SIZE);
+/* SLJIT_R0 = arguments */
+OP1(SLJIT_MOV, SLJIT_R1, 0, STACK_TOP, 0);
 GET_LOCAL_BASE(SLJIT_R2, 0, OVECTOR_START);
 sljit_emit_ijump(compiler, SLJIT_CALL3, SLJIT_IMM, SLJIT_FUNC_OFFSET(do_callout));
 OP1(SLJIT_MOV_S32, SLJIT_RETURN_REG, 0, SLJIT_RETURN_REG, 0);
@@ -7195,12 +7213,12 @@ OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0);
 free_stack(common, CALLOUT_ARG_SIZE / sizeof(sljit_sw));
 
 /* Check return value. */
-OP2(SLJIT_SUB | SLJIT_SET_S, SLJIT_UNUSED, 0, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0);
+OP2(SLJIT_SUB | SLJIT_SET_Z | SLJIT_SET_SIG_GREATER, SLJIT_UNUSED, 0, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0);
 add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_SIG_GREATER));
 if (common->forced_quit_label == NULL)
-  add_jump(compiler, &common->forced_quit, JUMP(SLJIT_SIG_LESS));
+  add_jump(compiler, &common->forced_quit, JUMP(SLJIT_NOT_EQUAL) /* SIG_LESS */);
 else
-  JUMPTO(SLJIT_SIG_LESS, common->forced_quit_label);
+  JUMPTO(SLJIT_NOT_EQUAL /* SIG_LESS */, common->forced_quit_label);
 return cc + 2 + 2 * LINK_SIZE;
 }
 
@@ -7321,7 +7339,7 @@ else
   allocate_stack(common, framesize + extrasize);
 
   OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
-  OP2(SLJIT_SUB, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + extrasize) * sizeof(sljit_sw));
+  OP2(SLJIT_ADD, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + extrasize) * sizeof(sljit_sw));
   OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP2, 0);
   if (needs_control_head)
     OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
@@ -7392,22 +7410,22 @@ while (1)
       free_stack(common, extrasize);
 
     if (needs_control_head)
-      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), 0);
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(-1));
     }
   else
     {
     if ((opcode != OP_ASSERT_NOT && opcode != OP_ASSERTBACK_NOT) || conditional)
       {
       /* We don't need to keep the STR_PTR, only the previous private_data_ptr. */
-      OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_sw));
+      OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_sw));
       if (needs_control_head)
-        OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), 0);
+        OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(-1));
       }
     else
       {
       OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
       if (needs_control_head)
-        OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), (framesize + 1) * sizeof(sljit_sw));
+        OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(-framesize - 2));
       add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
       }
     }
@@ -7418,25 +7436,25 @@ while (1)
     if (conditional)
       {
       if (extrasize > 0)
-        OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), needs_control_head ? sizeof(sljit_sw) : 0);
+        OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), needs_control_head ? STACK(-2) : STACK(-1));
       }
     else if (bra == OP_BRAZERO)
       {
       if (framesize < 0)
-        OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (extrasize - 1) * sizeof(sljit_sw));
+        OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(-extrasize));
       else
         {
-        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_sw));
-        OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (framesize + extrasize - 1) * sizeof(sljit_sw));
+        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(-framesize - 1));
+        OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(-framesize - extrasize));
         OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0);
         }
-      OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+      OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
       }
     else if (framesize >= 0)
       {
       /* For OP_BRA and OP_BRAMINZERO. */
-      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_sw));
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-framesize - 1));
       }
     }
   add_jump(compiler, found, JUMP(SLJIT_JUMP));
@@ -7480,12 +7498,12 @@ if (common->positive_assert_quit != NULL)
   set_jumps(common->positive_assert_quit, LABEL());
   SLJIT_ASSERT(framesize != no_stack);
   if (framesize < 0)
-    OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, extrasize * sizeof(sljit_sw));
+    OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, extrasize * sizeof(sljit_sw));
   else
     {
     OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
     add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
-    OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + extrasize) * sizeof(sljit_sw));
+    OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + extrasize) * sizeof(sljit_sw));
     }
   JUMPHERE(jump);
   }
@@ -7534,18 +7552,18 @@ if (opcode == OP_ASSERT || opcode == OP_ASSERTBACK)
     {
     /* We know that STR_PTR was stored on the top of the stack. */
     if (extrasize > 0)
-      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (extrasize - 1) * sizeof(sljit_sw));
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(-extrasize));
 
     /* Keep the STR_PTR on the top of the stack. */
     if (bra == OP_BRAZERO)
       {
-      OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+      OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
       if (extrasize == 2)
         OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0);
       }
     else if (bra == OP_BRAMINZERO)
       {
-      OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+      OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
       }
     }
@@ -7554,13 +7572,13 @@ if (opcode == OP_ASSERT || opcode == OP_ASSERTBACK)
     if (bra == OP_BRA)
       {
       /* We don't need to keep the STR_PTR, only the previous private_data_ptr. */
-      OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_sw));
-      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), (extrasize - 2) * sizeof(sljit_sw));
+      OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_sw));
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(-extrasize + 1));
       }
     else
       {
       /* We don't need to keep the STR_PTR, only the previous private_data_ptr. */
-      OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 2) * sizeof(sljit_sw));
+      OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 2) * sizeof(sljit_sw));
       if (extrasize == 2)
         {
         OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
@@ -7588,7 +7606,7 @@ if (opcode == OP_ASSERT || opcode == OP_ASSERTBACK)
       {
       OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
       add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
-      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), framesize * sizeof(sljit_sw));
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-framesize - 1));
       }
     set_jumps(backtrack->common.topbacktracks, LABEL());
     }
@@ -7675,23 +7693,23 @@ if (framesize < 0)
     }
 
   if (needs_control_head)
-    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), (ket != OP_KET || has_alternatives) ? sizeof(sljit_sw) : 0);
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), (ket != OP_KET || has_alternatives) ? STACK(-2) : STACK(-1));
 
   /* TMP2 which is set here used by OP_KETRMAX below. */
   if (ket == OP_KETRMAX)
-    OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), 0);
+    OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(-1));
   else if (ket == OP_KETRMIN)
     {
     /* Move the STR_PTR to the private_data_ptr. */
-    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), 0);
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-1));
     }
   }
 else
   {
   stacksize = (ket != OP_KET || has_alternatives) ? 2 : 1;
-  OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + stacksize) * sizeof(sljit_sw));
+  OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + stacksize) * sizeof(sljit_sw));
   if (needs_control_head)
-    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), 0);
+    OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(-1));
 
   if (ket == OP_KETRMAX)
     {
@@ -7927,7 +7945,7 @@ if (bra == OP_BRAMINZERO)
         {
         /* Except when the whole stack frame must be saved. */
         OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
-        braminzero = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), (BACKTRACK_AS(bracket_backtrack)->u.framesize + 1) * sizeof(sljit_sw));
+        braminzero = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), STACK(-BACKTRACK_AS(bracket_backtrack)->u.framesize - 2));
         }
       JUMPHERE(skip);
       }
@@ -8000,7 +8018,7 @@ if (opcode == OP_ONCE)
         OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0);
       if (BACKTRACK_AS(bracket_backtrack)->u.framesize == no_frame)
-        OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0, SLJIT_IMM, needs_control_head ? (2 * sizeof(sljit_sw)) : sizeof(sljit_sw));
+        OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0, SLJIT_IMM, needs_control_head ? (2 * sizeof(sljit_sw)) : sizeof(sljit_sw));
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize + 1), TMP2, 0);
       }
     else if (ket == OP_KETRMAX || has_alternatives)
@@ -8018,7 +8036,7 @@ if (opcode == OP_ONCE)
       OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0);
 
     OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
-    OP2(SLJIT_SUB, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw));
+    OP2(SLJIT_ADD, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw));
 
     stacksize = needs_control_head ? 1 : 0;
     if (ket != OP_KET || has_alternatives)
@@ -8090,13 +8108,13 @@ if (opcode == OP_COND || opcode == OP_SCOND)
     slot = common->name_table + GET2(matchingpath, 1) * common->name_entry_size;
     OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0);
     OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1));
-    OP2(SLJIT_SUB | SLJIT_SET_E, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(slot, 0) << 1), TMP1, 0);
+    OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(slot, 0) << 1), TMP1, 0);
     slot += common->name_entry_size;
     i--;
     while (i-- > 0)
       {
       OP2(SLJIT_SUB, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(slot, 0) << 1), TMP1, 0);
-      OP2(SLJIT_OR | SLJIT_SET_E, TMP2, 0, TMP2, 0, STR_PTR, 0);
+      OP2(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, TMP2, 0, STR_PTR, 0);
       slot += common->name_entry_size;
       }
     OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0);
@@ -8111,7 +8129,7 @@ if (opcode == OP_COND || opcode == OP_SCOND)
 
     if (*matchingpath == OP_FAIL)
       stacksize = 0;
-    if (*matchingpath == OP_RREF)
+    else if (*matchingpath == OP_RREF)
       {
       stacksize = GET2(matchingpath, 1);
       if (common->currententry == NULL)
@@ -8244,7 +8262,7 @@ if (ket == OP_KETRMAX)
     {
     if (has_alternatives)
       BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL();
-    OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1);
+    OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1);
     JUMPTO(SLJIT_NOT_ZERO, rmax_label);
     /* Drop STR_PTR for greedy plus quantifier. */
     if (opcode != OP_ONCE)
@@ -8274,7 +8292,7 @@ if (ket == OP_KETRMAX)
 if (repeat_type == OP_EXACT)
   {
   count_match(common);
-  OP2(SLJIT_SUB | SLJIT_SET_E, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1);
   JUMPTO(SLJIT_NOT_ZERO, rmax_label);
   }
 else if (repeat_type == OP_UPTO)
@@ -8374,7 +8392,7 @@ switch(opcode)
   break;
 
   default:
-  SLJIT_ASSERT_STOP();
+  SLJIT_UNREACHABLE();
   break;
   }
 
@@ -8452,7 +8470,7 @@ else
   OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
   if (needs_control_head)
     OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
-  OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0, SLJIT_IMM, -STACK(stacksize - 1));
+  OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw));
 
   stack = 0;
   if (!zero)
@@ -8524,7 +8542,7 @@ while (*cc != OP_KETRPOS)
     {
     if (offset != 0)
       {
-      OP2(SLJIT_ADD, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, stacksize * sizeof(sljit_sw));
+      OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, stacksize * sizeof(sljit_sw));
       OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr);
       OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0);
       OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), cbraprivptr, STR_PTR, 0);
@@ -8535,10 +8553,10 @@ while (*cc != OP_KETRPOS)
     else
       {
       OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
-      OP2(SLJIT_ADD, STACK_TOP, 0, TMP2, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw));
+      OP2(SLJIT_SUB, STACK_TOP, 0, TMP2, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw));
       if (opcode == OP_SBRAPOS)
-        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_sw));
-      OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_sw), STR_PTR, 0);
+        OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), STACK(-framesize - 2));
+      OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), STACK(-framesize - 2), STR_PTR, 0);
       }
 
     /* Even if the match is empty, we need to reset the control head. */
@@ -8584,7 +8602,7 @@ while (*cc != OP_KETRPOS)
     else
       {
       OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
-      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(TMP2), (framesize + 1) * sizeof(sljit_sw));
+      OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(TMP2), STACK(-framesize - 2));
       }
     }
 
@@ -8601,7 +8619,7 @@ if (!zero)
   if (framesize < 0)
     add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0));
   else /* TMP2 is set to [private_data_ptr] above. */
-    add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(TMP2), (stacksize - 1) * sizeof(sljit_sw), SLJIT_IMM, 0));
+    add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(TMP2), STACK(-stacksize), SLJIT_IMM, 0));
   }
 
 /* None of them matched. */
@@ -8824,7 +8842,7 @@ if (exact > 1)
     OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, exact);
     label = LABEL();
     compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks, FALSE);
-    OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
+    OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
     JUMPTO(SLJIT_NOT_ZERO, label);
     }
   else
@@ -8832,7 +8850,7 @@ if (exact > 1)
     OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, exact);
     label = LABEL();
     compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks, TRUE);
-    OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
+    OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
     JUMPTO(SLJIT_NOT_ZERO, label);
     }
   }
@@ -8862,7 +8880,7 @@ switch(opcode)
     if (opcode == OP_UPTO)
       {
       OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0);
-      OP2(SLJIT_SUB | SLJIT_SET_E, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+      OP2(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
       jump = JUMP(SLJIT_ZERO);
       OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0, TMP1, 0);
       }
@@ -8924,7 +8942,7 @@ switch(opcode)
       label = LABEL();
       if (opcode == OP_UPTO)
         {
-        OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
+        OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
         add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_ZERO));
         }
       compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks, FALSE);
@@ -8944,7 +8962,7 @@ switch(opcode)
       OP1(SLJIT_MOV, base, offset1, STR_PTR, 0);
       if (opcode == OP_UPTO)
         {
-        OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
+        OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
         add_jump(compiler, &no_match, JUMP(SLJIT_ZERO));
         }
 
@@ -8971,7 +8989,7 @@ switch(opcode)
 
       if (opcode == OP_UPTO)
         {
-        OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
+        OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
         JUMPTO(SLJIT_NOT_ZERO, label);
         }
       else
@@ -9000,7 +9018,7 @@ switch(opcode)
 
       if (opcode == OP_UPTO)
         {
-        OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
+        OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
         JUMPTO(SLJIT_NOT_ZERO, label);
         }
       else
@@ -9026,7 +9044,7 @@ switch(opcode)
       compile_char1_matchingpath(common, type, cc, &no_char1_match, FALSE);
       if (opcode == OP_UPTO)
         {
-        OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
+        OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
         JUMPTO(SLJIT_NOT_ZERO, label);
         OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
         }
@@ -9113,7 +9131,7 @@ switch(opcode)
     label = LABEL();
     compile_char1_matchingpath(common, type, cc, &no_match, TRUE);
     OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, STR_PTR, 0);
-    OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
+    OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
     JUMPTO(SLJIT_NOT_ZERO, label);
     set_jumps(no_match, LABEL());
     OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1);
@@ -9124,7 +9142,7 @@ switch(opcode)
   label = LABEL();
   detect_partial_match(common, &no_match);
   compile_char1_matchingpath(common, type, cc, &no_char1_match, FALSE);
-  OP2(SLJIT_SUB | SLJIT_SET_E, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1);
   JUMPTO(SLJIT_NOT_ZERO, label);
   OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
   set_jumps(no_char1_match, LABEL());
@@ -9142,7 +9160,7 @@ switch(opcode)
   break;
 
   default:
-  SLJIT_ASSERT_STOP();
+  SLJIT_UNREACHABLE();
   break;
   }
 
@@ -9264,7 +9282,7 @@ size = 3 + (size < 0 ? 0 : size);
 OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr);
 allocate_stack(common, size);
 if (size > 3)
-  OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, STACK_TOP, 0, SLJIT_IMM, (size - 3) * sizeof(sljit_sw));
+  OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, STACK_TOP, 0, SLJIT_IMM, (size - 3) * sizeof(sljit_sw));
 else
   OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, STACK_TOP, 0);
 OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(size - 1), SLJIT_IMM, BACKTRACK_AS(then_trap_backtrack)->start);
@@ -9569,7 +9587,7 @@ while (cc < ccend)
     break;
 
     default:
-    SLJIT_ASSERT_STOP();
+    SLJIT_UNREACHABLE();
     return;
     }
   if (cc == NULL)
@@ -9677,7 +9695,7 @@ switch(opcode)
   case OP_MINUPTO:
   OP1(SLJIT_MOV, TMP1, 0, base, offset1);
   OP1(SLJIT_MOV, STR_PTR, 0, base, offset0);
-  OP2(SLJIT_SUB | SLJIT_SET_E, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
+  OP2(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, TMP1, 0, SLJIT_IMM, 1);
   add_jump(compiler, &jumplist, JUMP(SLJIT_ZERO));
 
   OP1(SLJIT_MOV, base, offset1, TMP1, 0);
@@ -9723,7 +9741,7 @@ switch(opcode)
   break;
 
   default:
-  SLJIT_ASSERT_STOP();
+  SLJIT_UNREACHABLE();
   break;
   }
 
@@ -9831,7 +9849,7 @@ if (*cc == OP_ASSERT || *cc == OP_ASSERTBACK)
   {
   OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(assert_backtrack)->private_data_ptr);
   add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
-  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(assert_backtrack)->private_data_ptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(assert_backtrack)->framesize * sizeof(sljit_sw));
+  OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(assert_backtrack)->private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-CURRENT_AS(assert_backtrack)->framesize - 1));
 
   set_jumps(current->topbacktracks, LABEL());
   }
@@ -9841,7 +9859,7 @@ else
 if (bra == OP_BRAZERO)
   {
   /* We know there is enough place on the stack. */
-  OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
+  OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw));
   OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0);
   JUMPTO(SLJIT_JUMP, CURRENT_AS(assert_backtrack)->matchingpath);
   JUMPHERE(brajump);
@@ -9954,7 +9972,7 @@ else if (ket == OP_KETRMIN)
       else
         {
         OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr);
-        CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), (CURRENT_AS(bracket_backtrack)->u.framesize + 1) * sizeof(sljit_sw), CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
+        CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), STACK(-CURRENT_AS(bracket_backtrack)->u.framesize - 2), CURRENT_AS(bracket_backtrack)->recursive_matchingpath);
         }
       /* Drop STR_PTR for non-greedy plus quantifier. */
       if (opcode != OP_ONCE)
@@ -10060,7 +10078,7 @@ if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND))
       {
       OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr);
       add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
-      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr, SLJIT_MEM1(STACK_TOP), assert->framesize * sizeof(sljit_sw));
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-assert->framesize - 1));
       }
     cond = JUMP(SLJIT_JUMP);
     set_jumps(CURRENT_AS(bracket_backtrack)->u.assert->condfailed, LABEL());
@@ -10201,7 +10219,7 @@ if (has_alternatives)
       {
       OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr);
       add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
-      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr, SLJIT_MEM1(STACK_TOP), assert->framesize * sizeof(sljit_sw));
+      OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-assert->framesize - 1));
       }
     JUMPHERE(cond);
     }
@@ -10256,7 +10274,7 @@ else if (opcode == OP_ONCE)
   JUMPHERE(once);
   /* Restore previous private_data_ptr */
   if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0)
-    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(bracket_backtrack)->u.framesize * sizeof(sljit_sw));
+    OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-CURRENT_AS(bracket_backtrack)->u.framesize - 1));
   else if (ket == OP_KETRMIN)
     {
     OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1));
@@ -10346,7 +10364,7 @@ if (current->topbacktracks)
   free_stack(common, CURRENT_AS(bracketpos_backtrack)->stacksize);
   JUMPHERE(jump);
   }
-OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(bracketpos_backtrack)->private_data_ptr, SLJIT_MEM1(STACK_TOP), CURRENT_AS(bracketpos_backtrack)->framesize * sizeof(sljit_sw));
+OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(bracketpos_backtrack)->private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-CURRENT_AS(bracketpos_backtrack)->framesize - 1));
 }
 
 static SLJIT_INLINE void compile_braminzero_backtrackingpath(compiler_common *common, struct backtrack_common *current)
@@ -10392,10 +10410,10 @@ if (opcode == OP_THEN || opcode == OP_THEN_ARG)
     jump = JUMP(SLJIT_JUMP);
 
     loop = LABEL();
-    OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), -(int)sizeof(sljit_sw));
+    OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), STACK(0));
     JUMPHERE(jump);
-    CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), -(int)(2 * sizeof(sljit_sw)), TMP1, 0, loop);
-    CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), -(int)(3 * sizeof(sljit_sw)), TMP2, 0, loop);
+    CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0, loop);
+    CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(2), TMP2, 0, loop);
     add_jump(compiler, &common->then_trap->quit, JUMP(SLJIT_JUMP));
     return;
     }
@@ -10645,7 +10663,7 @@ while (current)
     break;
 
     default:
-    SLJIT_ASSERT_STOP();
+    SLJIT_UNREACHABLE();
     break;
     }
   current = current->prev;
@@ -10684,7 +10702,7 @@ sljit_emit_fast_enter(compiler, TMP2, 0);
 count_match(common);
 allocate_stack(common, private_data_size + framesize + alternativesize);
 OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(private_data_size + framesize + alternativesize - 1), TMP2, 0);
-copy_private_data(common, ccbegin, ccend, TRUE, private_data_size + framesize + alternativesize, framesize + alternativesize, needs_control_head);
+copy_private_data(common, ccbegin, ccend, TRUE, framesize + alternativesize, private_data_size + framesize + alternativesize, needs_control_head);
 if (needs_control_head)
   OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0);
 OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr, STACK_TOP, 0);
@@ -10737,9 +10755,9 @@ if (common->quit != NULL)
   OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr);
   if (needs_frame)
     {
-    OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
-    add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
     OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
+    add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+    OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
     }
   OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 0);
   common->quit = NULL;
@@ -10750,32 +10768,32 @@ set_jumps(common->accept, LABEL());
 OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr);
 if (needs_frame)
   {
-  OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
-  add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
   OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
+  add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL));
+  OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + alternativesize) * sizeof(sljit_sw));
   }
 OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 1);
 
 JUMPHERE(jump);
 if (common->quit != NULL)
   set_jumps(common->quit, LABEL());
-copy_private_data(common, ccbegin, ccend, FALSE, private_data_size + framesize + alternativesize, framesize + alternativesize, needs_control_head);
+copy_private_data(common, ccbegin, ccend, FALSE, framesize + alternativesize, private_data_size + framesize + alternativesize, needs_control_head);
 free_stack(common, private_data_size + framesize + alternativesize);
 if (needs_control_head)
   {
-  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), 2 * sizeof(sljit_sw));
-  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), sizeof(sljit_sw));
+  OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(-3));
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(-2));
   OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr, TMP1, 0);
   OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
   OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, TMP2, 0);
   }
 else
   {
-  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), sizeof(sljit_sw));
+  OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(-2));
   OP1(SLJIT_MOV, TMP1, 0, TMP3, 0);
   OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr, TMP2, 0);
   }
-sljit_emit_fast_return(compiler, SLJIT_MEM1(STACK_TOP), 0);
+sljit_emit_fast_return(compiler, SLJIT_MEM1(STACK_TOP), STACK(-1));
 }
 
 #undef COMPILE_BACKTRACKINGPATH
@@ -11237,7 +11255,7 @@ OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP2, 0);
 OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0);
 OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, stack));
 OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, top), STACK_TOP, 0);
-OP2(SLJIT_ADD, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, limit), SLJIT_IMM, STACK_GROWTH_RATE);
+OP2(SLJIT_SUB, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(struct sljit_stack, limit), SLJIT_IMM, STACK_GROWTH_RATE);
 
 sljit_emit_ijump(compiler, SLJIT_CALL2, SLJIT_IMM, SLJIT_FUNC_OFFSET(sljit_stack_resize));
 jump = CMP(SLJIT_NOT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0);
@@ -11391,10 +11409,10 @@ union {
 sljit_u8 local_space[MACHINE_STACK_SIZE];
 struct sljit_stack local_stack;
 
-local_stack.top = (sljit_sw)&local_space;
-local_stack.base = local_stack.top;
-local_stack.limit = local_stack.base + MACHINE_STACK_SIZE;
-local_stack.max_limit = local_stack.limit;
+local_stack.max_limit = local_space;
+local_stack.limit = local_space;
+local_stack.base = local_space + MACHINE_STACK_SIZE;
+local_stack.top = local_space + MACHINE_STACK_SIZE;
 arguments->stack = &local_stack;
 convert_executable_func.executable_func = executable_func;
 return convert_executable_func.call_executable_func(arguments);
diff --git a/erts/emulator/pcre/pcre_tables.c b/erts/emulator/pcre/pcre_tables.c
index 2f6302e2e1..08e31f1460 100644
--- a/erts/emulator/pcre/pcre_tables.c
+++ b/erts/emulator/pcre/pcre_tables.c
@@ -6,7 +6,7 @@
 and semantics are as close as possible to those of the Perl 5 language.
 
                        Written by Philip Hazel
-           Copyright (c) 1997-2012 University of Cambridge
+           Copyright (c) 1997-2017 University of Cambridge
 
 -----------------------------------------------------------------------------
 Redistribution and use in source and binary forms, with or without
@@ -162,7 +162,7 @@ const pcre_uint32 PRIV(ucp_gbtable[]) = {
 
    (1<<ucp_gbExtend)|(1<<ucp_gbSpacingMark),                /*  5 SpacingMark */
    (1<<ucp_gbExtend)|(1<<ucp_gbSpacingMark)|(1<<ucp_gbL)|   /*  6 L */
-     (1<<ucp_gbL)|(1<<ucp_gbV)|(1<<ucp_gbLV)|(1<<ucp_gbLVT),
+     (1<<ucp_gbV)|(1<<ucp_gbLV)|(1<<ucp_gbLVT),
 
    (1<<ucp_gbExtend)|(1<<ucp_gbSpacingMark)|(1<<ucp_gbV)|   /*  7 V */
      (1<<ucp_gbT),
diff --git a/erts/emulator/pcre/pcre_ucd.c b/erts/emulator/pcre/pcre_ucd.c
index 9b700c0785..2dd4b05751 100644
--- a/erts/emulator/pcre/pcre_ucd.c
+++ b/erts/emulator/pcre/pcre_ucd.c
@@ -38,6 +38,20 @@ const pcre_uint16 PRIV(ucd_stage2)[] = {0};
 const pcre_uint32 PRIV(ucd_caseless_sets)[] = {0};
 #else
 
+/* If the 32-bit library is run in non-32-bit mode, character values
+greater than 0x10ffff may be encountered. For these we set up a
+special record. */
+
+#ifdef COMPILE_PCRE32
+const ucd_record PRIV(dummy_ucd_record)[] = {{
+  ucp_Common,    /* script */
+  ucp_Cn,        /* type unassigned */
+  ucp_gbOther,   /* grapheme break property */
+  0,             /* case set */
+  0,             /* other case */
+  }};
+#endif
+
 /* When recompiling tables with a new Unicode version, please check the
 types in this structure definition from pcre_internal.h (the actual
 field names will be different):
diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c
index 834b77eb58..f93d4c1557 100644
--- a/erts/emulator/sys/common/erl_check_io.c
+++ b/erts/emulator/sys/common/erl_check_io.c
@@ -29,7 +29,6 @@
 #endif
 
 #define ERL_CHECK_IO_C__
-#define ERTS_WANT_BREAK_HANDLING
 #ifndef WANT_NONBLOCKING
 #  define WANT_NONBLOCKING
 #endif
@@ -44,71 +43,79 @@
 #define ERTS_WANT_TIMER_WHEEL_API
 #include "erl_time.h"
 
-#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
-#  include "safe_hash.h"
-#  define DRV_EV_STATE_HTAB_SIZE 1024
+#if 0
+#define DEBUG_PRINT(FMT, ...) erts_printf(FMT "\r\n", ##__VA_ARGS__)
+#define DEBUG_PRINT_FD(FMT, STATE, ...)                                 \
+    DEBUG_PRINT("%d: " FMT " (ev=%s, ac=%s, flg=%d)",                   \
+                (STATE) ? (STATE)->fd : (ErtsSysFdType)-1, ##__VA_ARGS__, \
+                ev2str((STATE) ? (STATE)->events : ERTS_POLL_EV_NONE),  \
+                ev2str((STATE) ? (STATE)->active_events : ERTS_POLL_EV_NONE), \
+                (STATE) ? (STATE)->flags : ERTS_EV_FLAG_CLEAR)
+#define DEBUG_PRINT_MODE
+#else
+#define DEBUG_PRINT(...)
 #endif
 
-typedef char EventStateType;
-#define ERTS_EV_TYPE_NONE     ((EventStateType) 0)
-#define ERTS_EV_TYPE_DRV_SEL  ((EventStateType) 1) /* driver_select */
-#define ERTS_EV_TYPE_DRV_EV   ((EventStateType) 2) /* driver_event */
-#define ERTS_EV_TYPE_STOP_USE ((EventStateType) 3) /* pending stop_select */
-#define ERTS_EV_TYPE_NIF      ((EventStateType) 4) /* enif_select */
-#define ERTS_EV_TYPE_STOP_NIF ((EventStateType) 5) /* pending nif stop */
-
-typedef char EventStateFlags;
-#define ERTS_EV_FLAG_USED         ((EventStateFlags) 1)   /* ERL_DRV_USE has been turned on */
-#define ERTS_EV_FLAG_DEFER_IN_EV  ((EventStateFlags) 2)
-#define ERTS_EV_FLAG_DEFER_OUT_EV ((EventStateFlags) 4)
-
-#ifdef DEBUG
-#  define ERTS_ACTIVE_FD_INC 2
-#else
-#  define ERTS_ACTIVE_FD_INC 128
+#ifndef DEBUG_PRINT_FD
+#define DEBUG_PRINT_FD(...)
 #endif
 
-#define ERTS_CHECK_IO_POLL_RES_LEN 512
+#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
+#  include "safe_hash.h"
+#  define DRV_EV_STATE_HTAB_SIZE 1024
+#endif
 
-#if defined(ERTS_KERNEL_POLL_VERSION)
-#  define ERTS_CIO_EXPORT(FUNC) FUNC ## _kp
-#elif defined(ERTS_NO_KERNEL_POLL_VERSION)
-#  define ERTS_CIO_EXPORT(FUNC) FUNC ## _nkp
+typedef enum {
+    ERTS_EV_TYPE_NONE     = 0,
+    ERTS_EV_TYPE_DRV_SEL  = 1, /* driver_select */
+    ERTS_EV_TYPE_STOP_USE = 2, /* pending stop_select */
+    ERTS_EV_TYPE_NIF      = 3, /* enif_select */
+    ERTS_EV_TYPE_STOP_NIF = 4  /* pending nif stop */
+} EventStateType;
+
+typedef enum {
+    ERTS_EV_FLAG_CLEAR         = 0,
+    ERTS_EV_FLAG_USED          = 1,   /* ERL_DRV_USE has been turned on */
+#ifdef ERTS_ENABLE_KERNEL_POLL
+    ERTS_EV_FLAG_FALLBACK      = 2,   /* Set when kernel poll rejected fd
+                                         and it was put in the nkp version */
 #else
-#  define ERTS_CIO_EXPORT(FUNC) FUNC
+    ERTS_EV_FLAG_FALLBACK      = ERTS_EV_FLAG_CLEAR,
 #endif
 
-#define ERTS_CIO_HAVE_DRV_EVENT \
-  (ERTS_POLL_USE_POLL && !ERTS_POLL_USE_KERNEL_POLL)
+    /* Combinations */
+    ERTS_EV_FLAG_USED_FALLBACK = ERTS_EV_FLAG_USED | ERTS_EV_FLAG_FALLBACK
+} EventStateFlags;
 
-#define ERTS_CIO_POLL_CTL	ERTS_POLL_EXPORT(erts_poll_control)
-#define ERTS_CIO_POLL_CTLV	ERTS_POLL_EXPORT(erts_poll_controlv)
-#define ERTS_CIO_POLL_WAIT	ERTS_POLL_EXPORT(erts_poll_wait)
-#define ERTS_CIO_POLL_INTR 	ERTS_POLL_EXPORT(erts_poll_interrupt)
-#define ERTS_CIO_POLL_INTR_TMD	ERTS_POLL_EXPORT(erts_poll_interrupt_timed)
-#define ERTS_CIO_NEW_POLLSET 	ERTS_POLL_EXPORT(erts_poll_create_pollset)
-#define ERTS_CIO_FREE_POLLSET	ERTS_POLL_EXPORT(erts_poll_destroy_pollset)
-#define ERTS_CIO_POLL_MAX_FDS	ERTS_POLL_EXPORT(erts_poll_max_fds)
-#define ERTS_CIO_POLL_INIT	ERTS_POLL_EXPORT(erts_poll_init)
-#define ERTS_CIO_POLL_INFO	ERTS_POLL_EXPORT(erts_poll_info)
+#define flag2str(flags)                                                 \
+    ((flags) == ERTS_EV_FLAG_CLEAR ? "CLEAR" :                          \
+     ((flags) == ERTS_EV_FLAG_USED ? "USED" :                           \
+      ((flags) == ERTS_EV_FLAG_FALLBACK ? "FLBK" :                      \
+       ((flags) == ERTS_EV_FLAG_USED_FALLBACK ? "USED|FLBK" : "ERROR"))))
 
-#define GET_FD(fd) fd
+/* How many events that can be handled at once by one erts_poll_wait call */
+#define ERTS_CHECK_IO_POLL_RES_LEN 512
 
-static struct pollset_info
+/* Each I/O Poll Thread has one ErtsPollThread each. The ps field
+   can point to either a private ErtsPollSet or a shared one.
+   At the moment only kqueue and epoll pollsets can be
+   shared across threads.
+*/
+typedef struct erts_poll_thread
 {
-    ErtsPollSet ps;
-    erts_atomic_t in_poll_wait;        /* set while doing poll */
-    struct {
-	int six; /* start index */
-	int eix; /* end index */
-	erts_atomic32_t no;
-	int size;
-	ErtsSysFdType *array;
-    } active_fd;
-    struct removed_fd* removed_list;       /* list of deselected fd's*/
-    erts_spinlock_t removed_list_lock;
-}pollset;
-#define NUM_OF_POLLSETS 1
+    ErtsPollSet *ps;
+    ErtsPollResFd *pollres;
+    int pollres_len;
+} ErtsPollThread;
+
+/* pollsetv contains pointers to the ErtsPollSets that are in use.
+ * Which pollset to use is determined by hashing the fd.
+ */
+static ErtsPollSet **pollsetv;
+#if ERTS_POLL_USE_FALLBACK
+static ErtsPollSet *flbk_pollset;
+#endif
+static ErtsPollThread *psiv;
 
 typedef struct {
 #ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
@@ -117,92 +124,151 @@ typedef struct {
     ErtsSysFdType fd;
     struct {
 	ErtsDrvSelectDataState *select;   /* ERTS_EV_TYPE_DRV_SEL */
-#if ERTS_CIO_HAVE_DRV_EVENT
-	ErtsDrvEventDataState *event;     /* ERTS_EV_TYPE_DRV_EV */
-#endif
         ErtsNifSelectDataState *nif;      /* ERTS_EV_TYPE_NIF */
         union {
             erts_driver_t*  drv_ptr;    /* ERTS_EV_TYPE_STOP_USE */
             ErtsResource* resource;   /* ERTS_EV_TYPE_STOP_NIF */
-        }stop;
+        } stop;
     } driver;
-    ErtsPollEvents events;
-    unsigned short remove_cnt; /* number of removed_fd's referring to this fd */
+    ErtsPollEvents events; /* The events that have been selected upon */
+    ErtsPollEvents active_events; /* The events currently active in the pollset */
     EventStateType type;
     EventStateFlags flags;
 } ErtsDrvEventState;
 
-struct removed_fd {
-    struct removed_fd *next;
+struct drv_ev_state_shared {
+
+    union {
+        erts_mtx_t lck;
+        byte _cache_line_alignment[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(erts_mtx_t))];
+    } locks[ERTS_CHECK_IO_DRV_EV_STATE_LOCK_CNT];
+
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    ErtsSysFdType fd;
+    int max_fds;
+    erts_atomic_t len;
+    ErtsDrvEventState *v;
+    erts_mtx_t grow_lock; /* prevent lock-hogging of racing growers */
 #else
-    ErtsDrvEventState* state;
-    #ifdef DEBUG
-    ErtsSysFdType fd;
-    #endif
+    SafeHash tab;
+    int num_prealloc;
+    ErtsDrvEventState *prealloc_first;
+    erts_spinlock_t prealloc_lock;
 #endif
-
 };
 
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-static int max_fds = -1;
-#endif
-#define DRV_EV_STATE_LOCK_CNT 16
-static union {
-    erts_mtx_t lck;
-    byte _cache_line_alignment[64];
-}drv_ev_state_locks[DRV_EV_STATE_LOCK_CNT];
+int ERTS_WRITE_UNLIKELY(erts_no_pollsets) = 1;
+int ERTS_WRITE_UNLIKELY(erts_no_poll_threads) = 1;
+struct drv_ev_state_shared drv_ev_state;
 
-static ERTS_INLINE erts_mtx_t* fd_mtx(ErtsSysFdType fd)
-{
+static ERTS_INLINE int fd_hash(ErtsSysFdType fd) {
     int hash = (int)fd;
 # ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
     hash ^= (hash >> 9);
 # endif
-    return &drv_ev_state_locks[hash % DRV_EV_STATE_LOCK_CNT].lck;
+    return hash;
+}
+
+static ERTS_INLINE erts_mtx_t* fd_mtx(ErtsSysFdType fd)
+{
+    return &drv_ev_state.locks[fd_hash(fd) % ERTS_CHECK_IO_DRV_EV_STATE_LOCK_CNT].lck;
 }
 
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
 
-static erts_atomic_t drv_ev_state_len;
-static ErtsDrvEventState *drv_ev_state;
-static erts_mtx_t drv_ev_state_grow_lock; /* prevent lock-hogging of racing growers */
+static ERTS_INLINE ErtsDrvEventState *get_drv_ev_state(ErtsSysFdType fd)
+{
+    return &drv_ev_state.v[(int) fd];
+}
 
-#else
-static SafeHash drv_ev_state_tab;
-static int num_state_prealloc;
-static ErtsDrvEventState *state_prealloc_first;
-erts_spinlock_t state_prealloc_lock;
+#define new_drv_ev_state(State, fd) (State)
+#define erase_drv_ev_state(State)
+
+static ERTS_INLINE int grow_drv_ev_state(ErtsSysFdType fd) {
+    int i;
+    int old_len;
+    int new_len;
+
+    if ((unsigned)fd >= (unsigned)erts_atomic_read_nob(&drv_ev_state.len)) {
+
+	if (fd < 0 || fd >= drv_ev_state.max_fds)
+            return 0;
+
+        erts_mtx_lock(&drv_ev_state.grow_lock);
+        old_len = erts_atomic_read_nob(&drv_ev_state.len);
+        if (fd >= old_len) {
+            new_len = erts_poll_new_table_len(old_len, fd + 1);
+            if (new_len > drv_ev_state.max_fds)
+                new_len = drv_ev_state.max_fds;
+
+            for (i=0; i<ERTS_CHECK_IO_DRV_EV_STATE_LOCK_CNT; i++) { /* lock all fd's */
+                erts_mtx_lock(&drv_ev_state.locks[i].lck);
+            }
+            drv_ev_state.v = (drv_ev_state.v
+                              ? erts_realloc(ERTS_ALC_T_DRV_EV_STATE,
+                                             drv_ev_state.v,
+                                             sizeof(ErtsDrvEventState)*new_len)
+                              : erts_alloc(ERTS_ALC_T_DRV_EV_STATE,
+                                           sizeof(ErtsDrvEventState)*new_len));
+            ERTS_CT_ASSERT(ERTS_EV_TYPE_NONE == 0);
+            sys_memzero(drv_ev_state.v+old_len,
+                        sizeof(ErtsDrvEventState) * (new_len - old_len));
+            for (i = old_len; i < new_len; i++) {
+                drv_ev_state.v[i].fd = (ErtsSysFdType) i;
+            }
+            erts_atomic_set_nob(&drv_ev_state.len, new_len);
+            for (i=0; i<ERTS_CHECK_IO_DRV_EV_STATE_LOCK_CNT; i++) {
+                erts_mtx_unlock(&drv_ev_state.locks[i].lck);
+            }
+        }
+        /*else already grown by racing thread */
+
+        erts_mtx_unlock(&drv_ev_state.grow_lock);
+    }
+    return 1;
+}
 
-static ERTS_INLINE ErtsDrvEventState *hash_get_drv_ev_state(ErtsSysFdType fd)
+static int drv_ev_state_len(void)
+{
+    return erts_atomic_read_nob(&drv_ev_state.len);
+}
+
+#else /* !ERTS_SYS_CONTINOUS_FD_NUMBERS */
+
+static ERTS_INLINE ErtsDrvEventState *get_drv_ev_state(ErtsSysFdType fd)
 {
     ErtsDrvEventState tmpl;
     tmpl.fd = fd;
-    return  (ErtsDrvEventState *) safe_hash_get(&drv_ev_state_tab, (void *) &tmpl);
+    return  (ErtsDrvEventState *) safe_hash_get(&drv_ev_state.tab, (void *) &tmpl);
 }
 
-static ERTS_INLINE ErtsDrvEventState* hash_new_drv_ev_state(ErtsSysFdType fd)
+static ERTS_INLINE ErtsDrvEventState* new_drv_ev_state(ErtsDrvEventState *state,
+                                                       ErtsSysFdType fd)
 {
     ErtsDrvEventState tmpl;
+
+    if (state)
+        return state;
+
     tmpl.fd = fd;
     tmpl.driver.select = NULL;
-#if ERTS_CIO_HAVE_DRV_EVENT
-    tmpl.driver.event = NULL;
-#endif
     tmpl.driver.nif = NULL;
     tmpl.driver.stop.drv_ptr = NULL;
     tmpl.events = 0;
-    tmpl.remove_cnt = 0;
+    tmpl.active_events = 0;
     tmpl.type = ERTS_EV_TYPE_NONE;
     tmpl.flags = 0;
-    return  (ErtsDrvEventState *) safe_hash_put(&drv_ev_state_tab, (void *) &tmpl);
+
+    return  (ErtsDrvEventState *) safe_hash_put(&drv_ev_state.tab, (void *) &tmpl);
+}
+
+static ERTS_INLINE void erase_drv_ev_state(ErtsDrvEventState *state)
+{
+    safe_hash_erase(&drv_ev_state.tab, (void *) state);
 }
 
-static ERTS_INLINE void hash_erase_drv_ev_state(ErtsDrvEventState *state)
+static int drv_ev_state_len(void)
 {
-    ASSERT(state->remove_cnt == 0);
-    safe_hash_erase(&drv_ev_state_tab, (void *) state);
+    return erts_atomic_read_nob(&drv_ev_state.tab.nitems);
 }
 
 #endif /* !ERTS_SYS_CONTINOUS_FD_NUMBERS */
@@ -222,50 +288,47 @@ static void print_nif_select_op(erts_dsprintf_buf_t*, ErtsSysFdType,
 static void drv_select_large_fd_error(ErlDrvPort, ErtsSysFdType, int, int);
 static void nif_select_large_fd_error(ErtsSysFdType, int, ErtsResource*,Eterm ref);
 #endif
-#if ERTS_CIO_HAVE_DRV_EVENT
-static void drv_event_steal(ErlDrvPort ix, ErtsDrvEventState *state,
-			ErlDrvEventData event_data);
-static void print_drv_event_op(erts_dsprintf_buf_t *dsbufp,
-                               ErlDrvPort, ErtsSysFdType, ErlDrvEventData);
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-static void event_large_fd_error(ErlDrvPort, ErtsSysFdType, ErlDrvEventData);
-#endif
-#endif
 static void
 steal_pending_stop_use(erts_dsprintf_buf_t*, ErlDrvPort, ErtsDrvEventState*,
                        int mode, int on);
 static void
 steal_pending_stop_nif(erts_dsprintf_buf_t *dsbufp, ErtsResource*,
                        ErtsDrvEventState *state, int mode, int on);
-
-ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(removed_fd, struct removed_fd, 64, ERTS_ALC_T_FD_LIST)
+static ERTS_INLINE void
+check_fd_cleanup(ErtsDrvEventState *state,
+		 ErtsDrvSelectDataState **free_select,
+                 ErtsNifSelectDataState **free_nif);
+static ERTS_INLINE void iready(Eterm id, ErtsDrvEventState *state);
+static ERTS_INLINE void oready(Eterm id, ErtsDrvEventState *state);
+#ifdef DEBUG_PRINT_MODE
+static char *drvmode2str(int mode);
+static char *nifmode2str(enum ErlNifSelectFlags mode);
+#endif
 
 static ERTS_INLINE void
-init_iotask(ErtsIoTask *io_task)
+init_iotask(ErtsIoTask *io_task, ErtsSysFdType fd)
 {
     erts_port_task_handle_init(&io_task->task);
-    erts_atomic_init_nob(&io_task->executed_time, ~((erts_aint_t) 0));
+    io_task->fd = fd;
 }
 
 static ERTS_INLINE int
-is_iotask_active(ErtsIoTask *io_task, erts_aint_t current_cio_time)
-{    
+is_iotask_active(ErtsIoTask *io_task)
+{
     if (erts_port_task_is_scheduled(&io_task->task))
 	return 1;
-    if (erts_atomic_read_nob(&io_task->executed_time) == current_cio_time)
-	return 1;
     return 0;
 }
 
 static ERTS_INLINE ErtsDrvSelectDataState *
-alloc_drv_select_data(void)
+alloc_drv_select_data(ErtsSysFdType fd)
 {
     ErtsDrvSelectDataState *dsp = erts_alloc(ERTS_ALC_T_DRV_SEL_D_STATE,
 					     sizeof(ErtsDrvSelectDataState));
     dsp->inport = NIL;
     dsp->outport = NIL;
-    init_iotask(&dsp->iniotask);
-    init_iotask(&dsp->outiotask);
+    init_iotask(&dsp->iniotask, fd);
+    init_iotask(&dsp->outiotask, fd);
     return dsp;
 }
 
@@ -276,8 +339,6 @@ alloc_nif_select_data(void)
 					     sizeof(ErtsNifSelectDataState));
     dsp->in.pid = NIL;
     dsp->out.pid = NIL;
-    dsp->in.ddeselect_cnt = 0;
-    dsp->out.ddeselect_cnt = 0;
     return dsp;
 }
 
@@ -295,201 +356,136 @@ free_nif_select_data(ErtsNifSelectDataState *dsp)
     erts_free(ERTS_ALC_T_NIF_SEL_D_STATE, dsp);
 }
 
-#if ERTS_CIO_HAVE_DRV_EVENT
-
-static ERTS_INLINE ErtsDrvEventDataState *
-alloc_drv_event_data(void)
+static ERTS_INLINE int
+get_pollset_id(ErtsSysFdType fd)
 {
-    ErtsDrvEventDataState *dep = erts_alloc(ERTS_ALC_T_DRV_EV_D_STATE,
-					    sizeof(ErtsDrvEventDataState));
-    dep->port = NIL;
-    dep->data = NULL;
-    dep->removed_events = 0;
-#if ERTS_CIO_DEFER_ACTIVE_EVENTS
-    dep->deferred_events = 0;
-#endif
-    init_iotask(&dep->iotask);
-    return dep;
+    return fd_hash(fd) % erts_no_pollsets;
 }
 
-static ERTS_INLINE void
-free_drv_event_data(ErtsDrvEventDataState *dep)
+static ERTS_INLINE ErtsPollSet *
+get_pollset(ErtsSysFdType fd)
 {
-    ASSERT(!erts_port_task_is_scheduled(&dep->iotask.task));
-    erts_free(ERTS_ALC_T_DRV_EV_D_STATE, dep);   
+    return pollsetv[get_pollset_id(fd)];
 }
 
-#endif /* ERTS_CIO_HAVE_DRV_EVENT */
+#if ERTS_POLL_USE_FALLBACK
+static ERTS_INLINE ErtsPollSet *
+get_fallback(void)
+{
+    return flbk_pollset;
+}
+#endif
 
-static ERTS_INLINE void
-remember_removed(ErtsDrvEventState *state, struct pollset_info* psi)
+/*
+ * Place a fd within a pollset. This will automatically use
+ * the fallback ps if needed.
+ */
+static ERTS_INLINE ErtsPollEvents
+erts_io_control_wakeup(ErtsDrvEventState *state, ErtsPollOp op,
+                       ErtsPollEvents pe, int *wake_poller)
 {
-    struct removed_fd *fdlp;
+    ErtsSysFdType fd = state->fd;
+    ErtsPollEvents res = 0;
+    EventStateFlags flags = state->flags;
+
     ERTS_LC_ASSERT(erts_lc_mtx_is_locked(fd_mtx(state->fd)));
-    if (erts_atomic_read_nob(&psi->in_poll_wait)) {
-	state->remove_cnt++;
-	ASSERT(state->remove_cnt > 0);
-	fdlp = removed_fd_alloc();
-    #if defined(ERTS_SYS_CONTINOUS_FD_NUMBERS) || defined(DEBUG)
-    	fdlp->fd = state->fd;
-    #endif
-    #ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
-	fdlp->state = state;
-    #endif
-	erts_spin_lock(&psi->removed_list_lock);
-	fdlp->next = psi->removed_list;
-	psi->removed_list = fdlp;
-	erts_spin_unlock(&psi->removed_list_lock);
+
+    if (!(flags & ERTS_EV_FLAG_FALLBACK)) {
+        res = erts_poll_control(get_pollset(fd), fd, op, pe, wake_poller);
+
+#if ERTS_POLL_USE_FALLBACK
+        if (op == ERTS_POLL_OP_ADD && res == ERTS_POLL_EV_NVAL) {
+            /* When an add fails with NVAL, the poll/kevent operation could not
+               put that fd in the pollset, so we instead put it into a fallback pollset */
+            state->flags |= ERTS_EV_FLAG_FALLBACK;
+            res = erts_poll_control_flbk(get_fallback(), fd, op, pe, wake_poller);
+        }
+    } else {
+        ASSERT(op != ERTS_POLL_OP_ADD);
+        res = erts_poll_control_flbk(get_fallback(), fd, op, pe, wake_poller);
+#endif
     }
-}
 
+    return res;
+}
 
-static ERTS_INLINE int
-is_removed(ErtsDrvEventState *state)
+static ERTS_INLINE ErtsPollEvents
+erts_io_control(ErtsDrvEventState *state, ErtsPollOp op, ErtsPollEvents pe)
 {
-    /* Note that there is a possible race here, where an fd is removed
-       (increasing remove_cnt) and then added again just before erts_poll_wait
-       is called by erts_check_io. Any polled event on the re-added fd will then
-       be falsely ignored. But that does not matter, as the event will trigger
-       again next time erl_check_io is called. */
-    return state->remove_cnt > 0;
+    int wake_poller = 0;
+    return erts_io_control_wakeup(state, op, pe, &wake_poller);
 }
 
-static void
-forget_removed(struct pollset_info* psi)
+/* ToDo: Was inline in erl_check_io.h but now need struct erts_poll_thread */
+void
+erts_io_notify_port_task_executed(ErtsPortTaskType type,
+                                  ErtsPortTaskHandle *pthp,
+                                  void (*reset_handle)(ErtsPortTaskHandle *))
 {
-    struct removed_fd* fdlp;
-    struct removed_fd* tofree;
+    ErtsIoTask *itp = ErtsContainerStruct(pthp, ErtsIoTask, task);
+    ErtsSysFdType fd = itp->fd;
+    erts_mtx_t *mtx = fd_mtx(fd);
+    int active_events;
+    ErtsDrvEventState *state;
+    ErtsDrvSelectDataState *free_select = NULL;
+    ErtsNifSelectDataState *free_nif = NULL;
 
-    /* Fast track: if (atomic_ptr(removed_list)==NULL) return; */
+    erts_mtx_lock(mtx);
+    state = get_drv_ev_state(fd);
 
-    erts_spin_lock(&psi->removed_list_lock);
-    fdlp = psi->removed_list;
-    psi->removed_list = NULL;
-    erts_spin_unlock(&psi->removed_list_lock);
+    active_events = state->active_events;
 
-    while (fdlp) {
-        ErtsResource* resource = NULL;
-	erts_driver_t* drv_ptr = NULL;
-	erts_mtx_t* mtx;
-	ErtsSysFdType fd;
-	ErtsDrvEventState *state;
+    switch (type) {
+    case ERTS_PORT_TASK_INPUT:
 
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-	fd = fdlp->fd;
-	mtx = fd_mtx(fd);
-	erts_mtx_lock(mtx);
-	state = &drv_ev_state[(int) fd];
-#else
-	state = fdlp->state;
-	fd = state->fd;
-	ASSERT(fd == fdlp->fd);
-	mtx = fd_mtx(fd);
-	erts_mtx_lock(mtx);
-#endif
-	ASSERT(state->remove_cnt > 0);
-	if (--state->remove_cnt == 0) {
-	    switch (state->type) {
-	    case ERTS_EV_TYPE_STOP_NIF:
-		/* Now we can call stop */
-		resource = state->driver.stop.resource;
-                state->driver.stop.resource = NULL;
-                ASSERT(resource);
-		state->type = ERTS_EV_TYPE_NONE;
-		state->flags &= ~ERTS_EV_FLAG_USED;
-                goto case_ERTS_EV_TYPE_NONE;
-
-	    case ERTS_EV_TYPE_STOP_USE:
-		/* Now we can call stop_select */
-		drv_ptr = state->driver.stop.drv_ptr;
-		ASSERT(drv_ptr);
-		state->type = ERTS_EV_TYPE_NONE;
-		state->flags &= ~ERTS_EV_FLAG_USED;
-		state->driver.stop.drv_ptr = NULL;
-		/* Fall through */
-            case ERTS_EV_TYPE_NONE:
-            case_ERTS_EV_TYPE_NONE:
-#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
-		hash_erase_drv_ev_state(state);
-#endif
-		break;
-	    case ERTS_EV_TYPE_DRV_SEL:
-	    case ERTS_EV_TYPE_DRV_EV:
-		break;
-	    default:
-		ASSERT(0);
-	    }
-	}
-	erts_mtx_unlock(mtx);
-	if (drv_ptr) {
-	    int was_unmasked = erts_block_fpe();
-	    DTRACE1(driver_stop_select, drv_ptr->name);
-	    LTTNG1(driver_stop_select, drv_ptr->name);
-	    (*drv_ptr->stop_select) ((ErlDrvEvent) fd, NULL);
-	    erts_unblock_fpe(was_unmasked);
-	    if (drv_ptr->handle) {
-		erts_ddll_dereference_driver(drv_ptr->handle);
-	    }
-	}
-        if (resource) {
-            erts_resource_stop(resource, (ErlNifEvent)fd, 0);
-            enif_release_resource(resource->data);
-        }
+        DEBUG_PRINT_FD("executed ready_input", state);
+
+        ASSERT(!(state->active_events & ERTS_POLL_EV_IN));
+        if (state->events & ERTS_POLL_EV_IN)
+            active_events |= ERTS_POLL_EV_IN;
+        break;
+    case ERTS_PORT_TASK_OUTPUT:
 
-	tofree = fdlp;
-	fdlp = fdlp->next;
-	removed_fd_free(tofree);
+        DEBUG_PRINT_FD("executed ready_output", state);
+
+        ASSERT(!(state->active_events & ERTS_POLL_EV_OUT));
+        if (state->events & ERTS_POLL_EV_OUT)
+            active_events |= ERTS_POLL_EV_OUT;
+        break;
+    default:
+        erts_exit(ERTS_ABORT_EXIT, "Invalid IO port task type");
+        break;
     }
-}
 
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-static void
-grow_drv_ev_state(int min_ix)
-{
-    int i;
-    int old_len;
-    int new_len;
+    reset_handle(pthp);
 
-    erts_mtx_lock(&drv_ev_state_grow_lock);
-    old_len = erts_atomic_read_nob(&drv_ev_state_len);
-    if (min_ix >= old_len) {
-        new_len = erts_poll_new_table_len(old_len, min_ix + 1);
-        if (new_len > max_fds)
-            new_len = max_fds;
+    if (active_events) {
+        /* This is not needed if active_events has not changed */
+        if (state->active_events != active_events) {
+            ErtsPollEvents new_events;
+            state->active_events = active_events;
+            new_events = erts_io_control(state, ERTS_POLL_OP_MOD, active_events);
 
-	for (i=0; i<DRV_EV_STATE_LOCK_CNT; i++) { /* lock all fd's */
-	    erts_mtx_lock(&drv_ev_state_locks[i].lck);
-	}
-	drv_ev_state = (drv_ev_state
-			? erts_realloc(ERTS_ALC_T_DRV_EV_STATE,
-				       drv_ev_state,
-				       sizeof(ErtsDrvEventState)*new_len)
-			: erts_alloc(ERTS_ALC_T_DRV_EV_STATE,
-				     sizeof(ErtsDrvEventState)*new_len));
-	for (i = old_len; i < new_len; i++) {
-	    drv_ev_state[i].fd = (ErtsSysFdType) i;
-	    drv_ev_state[i].driver.select = NULL;
-#if ERTS_CIO_HAVE_DRV_EVENT
-	    drv_ev_state[i].driver.event = NULL;
-#endif
-	    drv_ev_state[i].driver.stop.drv_ptr = NULL;
-            drv_ev_state[i].driver.nif = NULL;
-	    drv_ev_state[i].events = 0;
-	    drv_ev_state[i].remove_cnt = 0;
-	    drv_ev_state[i].type = ERTS_EV_TYPE_NONE;
-	    drv_ev_state[i].flags = 0;
-	}
-	erts_atomic_set_nob(&drv_ev_state_len, new_len);
-	for (i=0; i<DRV_EV_STATE_LOCK_CNT; i++) {
-	    erts_mtx_unlock(&drv_ev_state_locks[i].lck);
-	}
+            /* We were unable to re-insert the fd into the pollset, signal the callback. */
+            if (new_events & (ERTS_POLL_EV_ERR|ERTS_POLL_EV_NVAL)) {
+                if (active_events & ERTS_POLL_EV_IN)
+                    iready(state->driver.select->inport, state);
+                if (active_events & ERTS_POLL_EV_OUT)
+                    oready(state->driver.select->outport, state);
+                state->active_events = 0;
+            }
+        }
+    } else {
+        check_fd_cleanup(state, &free_select, &free_nif);
     }
-    /*else already grown by racing thread */
 
-    erts_mtx_unlock(&drv_ev_state_grow_lock);
-}
-#endif /* ERTS_SYS_CONTINOUS_FD_NUMBERS */
+    erts_mtx_unlock(mtx);
 
+    if (free_select)
+        free_drv_select_data(free_select);
+    if (free_nif)
+        free_nif_select_data(free_nif);
+}
 
 static ERTS_INLINE void
 abort_task(Eterm id, ErtsPortTaskHandle *pthp, EventStateType type)
@@ -506,13 +502,6 @@ abort_tasks(ErtsDrvEventState *state, int mode)
     switch (mode) {
     case 0: check_type:
 	switch (state->type) {
-#if ERTS_CIO_HAVE_DRV_EVENT
-	case ERTS_EV_TYPE_DRV_EV:
-	    abort_task(state->driver.event->port,
-		       &state->driver.event->iotask.task,
-		       ERTS_EV_TYPE_DRV_EV);
-	    return;
-#endif
         case ERTS_EV_TYPE_NIF:
 	case ERTS_EV_TYPE_NONE:
 	    return;
@@ -542,16 +531,14 @@ abort_tasks(ErtsDrvEventState *state, int mode)
 static void
 deselect(ErtsDrvEventState *state, int mode)
 {
-    int do_wake = 0;
     ErtsPollEvents rm_events;
     ERTS_LC_ASSERT(erts_lc_mtx_is_locked(fd_mtx(state->fd)));
-    ASSERT(state->events);
 
     abort_tasks(state, mode);
 
-    if (!mode)
+    if (!mode) {
 	rm_events = state->events;
-    else {
+    } else {
 	rm_events = 0;
 	ASSERT(state->type == ERTS_EV_TYPE_DRV_SEL);
 	if (mode & ERL_DRV_READ) {
@@ -564,67 +551,63 @@ deselect(ErtsDrvEventState *state, int mode)
 	}
     }
 
-    state->events = ERTS_CIO_POLL_CTL(pollset.ps, state->fd, rm_events, 0, &do_wake);
+    state->events &= ~rm_events;
+    state->active_events &= ~rm_events;
 
     if (!(state->events)) {
+        erts_io_control(state, ERTS_POLL_OP_DEL, 0);
 	switch (state->type) {
         case ERTS_EV_TYPE_NIF:
             state->driver.nif->in.pid = NIL;
             state->driver.nif->out.pid = NIL;
-            state->driver.nif->in.ddeselect_cnt = 0;
-            state->driver.nif->out.ddeselect_cnt = 0;
-            enif_release_resource(state->driver.stop.resource);
+            enif_release_resource(state->driver.stop.resource->data);
             state->driver.stop.resource = NULL;
             break;
 	case ERTS_EV_TYPE_DRV_SEL:
 	    state->driver.select->inport = NIL;
 	    state->driver.select->outport = NIL;
 	    break;
-#if ERTS_CIO_HAVE_DRV_EVENT
-	case ERTS_EV_TYPE_DRV_EV:
-	    state->driver.event->port = NIL;
-	    state->driver.event->data = NULL;
-	    state->driver.event->removed_events = (ErtsPollEvents) 0;
-	    break;
-#endif
 	case ERTS_EV_TYPE_NONE:
 	    break;
 	default:
 	    ASSERT(0);
 	    break;
 	}
-	    
 	state->type = ERTS_EV_TYPE_NONE;
-	state->flags &= ~ERTS_EV_FLAG_USED;
-	remember_removed(state, &pollset);
+	state->flags = 0;
+    } else {
+        ErtsPollEvents new_events =
+            erts_io_control(state, ERTS_POLL_OP_MOD, state->active_events);
+
+        /* We were unable to re-insert the fd into the pollset, signal the callback. */
+        if (new_events & (ERTS_POLL_EV_ERR|ERTS_POLL_EV_NVAL)) {
+            if (state->active_events & ERTS_POLL_EV_IN)
+                iready(state->driver.select->inport, state);
+            if (state->active_events & ERTS_POLL_EV_OUT)
+                oready(state->driver.select->outport, state);
+            state->active_events = 0;
+        }
     }
 }
 
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-#  define IS_FD_UNKNOWN(state) ((state)->type == ERTS_EV_TYPE_NONE && (state)->remove_cnt == 0)
+#  define IS_FD_UNKNOWN(state) ((state)->type == ERTS_EV_TYPE_NONE)
 #else
 #  define IS_FD_UNKNOWN(state) ((state) == NULL)
 #endif
 
 static ERTS_INLINE void
 check_fd_cleanup(ErtsDrvEventState *state,
-#if ERTS_CIO_HAVE_DRV_EVENT
-		 ErtsDrvEventDataState **free_event,
-#endif
 		 ErtsDrvSelectDataState **free_select,
                  ErtsNifSelectDataState **free_nif)
 {
-    erts_aint_t current_cio_time;
-
     ERTS_LC_ASSERT(erts_lc_mtx_is_locked(fd_mtx(state->fd)));
-
-    current_cio_time = erts_atomic_read_acqb(&erts_check_io_time);
     *free_select = NULL;
     if (state->driver.select
 	&& (state->type != ERTS_EV_TYPE_DRV_SEL)
-	&& !is_iotask_active(&state->driver.select->iniotask, current_cio_time)
-	&& !is_iotask_active(&state->driver.select->outiotask, current_cio_time)) {
-	
+	&& !is_iotask_active(&state->driver.select->iniotask)
+	&& !is_iotask_active(&state->driver.select->outiotask)) {
+
 	*free_select = state->driver.select;
 	state->driver.select = NULL;
     }
@@ -635,382 +618,85 @@ check_fd_cleanup(ErtsDrvEventState *state,
         state->driver.nif = NULL;
     }
 
-#if ERTS_CIO_HAVE_DRV_EVENT
-    *free_event = NULL;
-    if (state->driver.event
-	&& (state->type != ERTS_EV_TYPE_DRV_EV)
-	&& !is_iotask_active(&state->driver.event->iotask,  current_cio_time)) {
-	
-	*free_event = state->driver.event;
-	state->driver.event = NULL;
-    }
-#endif
-
-#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
     if (((state->type != ERTS_EV_TYPE_NONE)
-	 | state->remove_cnt
-#if ERTS_CIO_HAVE_DRV_EVENT
-	 | (state->driver.event != NULL)
-#endif
+         | (state->driver.nif != NULL)
 	 | (state->driver.select != NULL)) == 0) {
 
-	hash_erase_drv_ev_state(state);
-
+	erase_drv_ev_state(state);
     }
-#endif
 }
 
-static ERTS_INLINE int
-check_cleanup_active_fd(ErtsSysFdType fd,
-#if ERTS_CIO_DEFER_ACTIVE_EVENTS
-			ErtsPollControlEntry *pce,
-			int *pce_ix,
-#endif
-			erts_aint_t current_cio_time,
-                        int may_sleep)
-{
-    ErtsDrvEventState *state;
-    int active = 0;
-    erts_mtx_t *mtx = fd_mtx(fd);
-    void *free_select = NULL;
-    void *free_nif = NULL;
-#if ERTS_CIO_HAVE_DRV_EVENT
-    void *free_event = NULL;
-#endif
-#if ERTS_CIO_DEFER_ACTIVE_EVENTS
-    ErtsPollEvents evon = 0, evoff = 0;
-#endif
-
-    erts_mtx_lock(mtx);
-
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    state = &drv_ev_state[(int) fd];
+#ifdef __WIN32__
+# define MUST_DEFER(MAY_SLEEP) 1
 #else
-    state = hash_get_drv_ev_state(fd); /* may be NULL! */
-    if (state)
-#endif
-    {
-	if (state->driver.select) {
-#if ERTS_CIO_DEFER_ACTIVE_EVENTS
-	    if (is_iotask_active(&state->driver.select->iniotask, current_cio_time)) {
-		active = 1;
-		if ((state->events & ERTS_POLL_EV_IN)
-		    && !(state->flags & ERTS_EV_FLAG_DEFER_IN_EV)) {
-		    evoff |= ERTS_POLL_EV_IN;
-		    state->flags |= ERTS_EV_FLAG_DEFER_IN_EV;
-		}
-	    }
-	    else if (state->flags & ERTS_EV_FLAG_DEFER_IN_EV) {
-		if (state->events & ERTS_POLL_EV_IN)
-		    evon |= ERTS_POLL_EV_IN;
-		state->flags &= ~ERTS_EV_FLAG_DEFER_IN_EV;
-	    }
-	    if (is_iotask_active(&state->driver.select->outiotask, current_cio_time)) {
-		active = 1;
-		if ((state->events & ERTS_POLL_EV_OUT)
-		    && !(state->flags & ERTS_EV_FLAG_DEFER_OUT_EV)) {
-		    evoff |= ERTS_POLL_EV_OUT;
-		    state->flags |= ERTS_EV_FLAG_DEFER_OUT_EV;
-		}
-	    }
-	    else if (state->flags & ERTS_EV_FLAG_DEFER_OUT_EV) {
-		if (state->events & ERTS_POLL_EV_OUT)
-		    evon |= ERTS_POLL_EV_OUT;
-		state->flags &= ~ERTS_EV_FLAG_DEFER_OUT_EV;
-	    }
-	    if (active)
-		(void) 0;
-	    else
-#else
-	    if (is_iotask_active(&state->driver.select->iniotask, current_cio_time)
-		|| is_iotask_active(&state->driver.select->outiotask, current_cio_time))
-		active = 1;
-	    else
-#endif
-		if (state->type != ERTS_EV_TYPE_DRV_SEL) {
-		free_select = state->driver.select;
-		state->driver.select = NULL;
-	    }
-	}
-
-        if (state->driver.nif) {
-            ErtsPollEvents rm_events = 0;
-            if (state->driver.nif->in.ddeselect_cnt) {
-                ASSERT(state->type == ERTS_EV_TYPE_NIF);
-                ASSERT(state->events & ERTS_POLL_EV_IN);
-                ASSERT(is_nil(state->driver.nif->in.pid));
-                if (may_sleep || state->driver.nif->in.ddeselect_cnt == 1) {
-                    rm_events = ERTS_POLL_EV_IN;
-                    state->driver.nif->in.ddeselect_cnt = 0;
-                }
-            }
-            if (state->driver.nif->out.ddeselect_cnt) {
-                ASSERT(state->type == ERTS_EV_TYPE_NIF);
-                ASSERT(state->events & ERTS_POLL_EV_OUT);
-                ASSERT(is_nil(state->driver.nif->out.pid));
-                if (may_sleep || state->driver.nif->out.ddeselect_cnt == 1) {
-                    rm_events |= ERTS_POLL_EV_OUT;
-                    state->driver.nif->out.ddeselect_cnt = 0;
-                }
-            }
-            if (rm_events) {
-                int do_wake = 0;
-                state->events = ERTS_CIO_POLL_CTL(pollset.ps, state->fd,
-                                                  rm_events, 0, &do_wake);
-            }
-            if (state->events)
-                active = 1;
-            else if (state->type != ERTS_EV_TYPE_NIF) {
-                free_nif = state->driver.nif;
-                state->driver.nif = NULL;
-            }
-        }
-
-#if ERTS_CIO_HAVE_DRV_EVENT
-	if (state->driver.event) {
-	    if (is_iotask_active(&state->driver.event->iotask, current_cio_time)) {
-#if ERTS_CIO_DEFER_ACTIVE_EVENTS
-		ErtsPollEvents evs = state->events & ~state->driver.event->deferred_events;
-		if (evs) {
-		    evoff |= evs;
-		    state->driver.event->deferred_events |= evs;
-		}
-#endif
-		active = 1;
-	    }
-	    else if (state->type != ERTS_EV_TYPE_DRV_EV) {
-		free_event = state->driver.event;
-		state->driver.event = NULL;
-	    }
-#if ERTS_CIO_DEFER_ACTIVE_EVENTS
-	    else {
-		ErtsPollEvents evs = state->events & state->driver.event->deferred_events;
-		if (evs) {
-		    evon |= evs;
-		    state->driver.event->deferred_events = 0;
-		}
-	    }
-#endif
-
-	}
-#endif
-
-#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
-	if (((state->type != ERTS_EV_TYPE_NONE) | state->remove_cnt | active) == 0)
-	    hash_erase_drv_ev_state(state);
-#endif
-
-    }
-
-    erts_mtx_unlock(mtx);
-
-    if (free_select)
-	free_drv_select_data(free_select);
-    if (free_nif)
-        free_nif_select_data(free_nif);
-#if ERTS_CIO_HAVE_DRV_EVENT
-    if (free_event)
-	free_drv_event_data(free_event);
+# define MUST_DEFER(MAY_SLEEP) (MAY_SLEEP)
 #endif
 
-#if ERTS_CIO_DEFER_ACTIVE_EVENTS
-    if (evoff) {
-	ErtsPollControlEntry *pcep = &pce[(*pce_ix)++];
-	pcep->fd = fd;
-	pcep->events = evoff;
-	pcep->on = 0;
-    }
-    if (evon) {
-	ErtsPollControlEntry *pcep = &pce[(*pce_ix)++];
-	pcep->fd = fd;
-	pcep->events = evon;
-	pcep->on = 1;
-    }
-#endif
-
-    return active;
-}
-
-static void
-check_cleanup_active_fds(erts_aint_t current_cio_time, int may_sleep)
-{
-    int six = pollset.active_fd.six;
-    int eix = pollset.active_fd.eix;
-    erts_aint32_t no = erts_atomic32_read_dirty(&pollset.active_fd.no);
-    int size = pollset.active_fd.size;
-    int ix = six;
-#if ERTS_CIO_DEFER_ACTIVE_EVENTS
-    /* every fd might add two entries */
-    Uint pce_sz = 2*sizeof(ErtsPollControlEntry)*no;
-    ErtsPollControlEntry *pctrl_entries = (pce_sz
-					   ? erts_alloc(ERTS_ALC_T_TMP, pce_sz)
-					   : NULL);
-    int pctrl_ix = 0;
-#endif
-
-    while (ix != eix) {
-	ErtsSysFdType fd = pollset.active_fd.array[ix];
-	int nix = ix + 1;
-	if (nix >= size)
-	    nix = 0;
-	ASSERT(fd != ERTS_SYS_FD_INVALID);
-	if (!check_cleanup_active_fd(fd,
-#if ERTS_CIO_DEFER_ACTIVE_EVENTS
-				     pctrl_entries,
-				     &pctrl_ix,
-#endif
-				     current_cio_time,
-                                     may_sleep)) {
-	    no--;
-	    if (ix == six) {
-#ifdef DEBUG
-		pollset.active_fd.array[ix] = ERTS_SYS_FD_INVALID;
-#endif
-		six = nix;
-	    }
-	    else {
-		pollset.active_fd.array[ix] = pollset.active_fd.array[six];
-#ifdef DEBUG
-		pollset.active_fd.array[six] = ERTS_SYS_FD_INVALID;
-#endif
-		six++;
-		if (six >= size)
-		    six = 0;
-	    }
-	}
-	ix = nix;
-    }
-
-#if ERTS_CIO_DEFER_ACTIVE_EVENTS
-    ASSERT(pctrl_ix <= pce_sz/sizeof(ErtsPollControlEntry));
-    if (pctrl_ix)
-	ERTS_CIO_POLL_CTLV(pollset.ps, pctrl_entries, pctrl_ix);
-    if (pctrl_entries)
-	erts_free(ERTS_ALC_T_TMP, pctrl_entries);
-#endif
-
-    pollset.active_fd.six = six;
-    pollset.active_fd.eix = eix;
-    erts_atomic32_set_relb(&pollset.active_fd.no, no);
-}
-
-static void grow_active_fds(void)
-{
-    ASSERT(pollset.active_fd.six == pollset.active_fd.eix);
-    pollset.active_fd.six = 0;
-    pollset.active_fd.eix = pollset.active_fd.size;
-    pollset.active_fd.size += ERTS_ACTIVE_FD_INC;
-    pollset.active_fd.array = erts_realloc(ERTS_ALC_T_ACTIVE_FD_ARR,
-                                           pollset.active_fd.array,
-                                           pollset.active_fd.size*sizeof(ErtsSysFdType));
-#ifdef DEBUG
-    {
-        int i;
-        for (i = pollset.active_fd.eix + 1; i < pollset.active_fd.size; i++)
-            pollset.active_fd.array[i] = ERTS_SYS_FD_INVALID;
-    }
-#endif
-}
-
-static ERTS_INLINE void
-add_active_fd(ErtsSysFdType fd)
-{
-    int eix = pollset.active_fd.eix;
-    int size = pollset.active_fd.size;
-    
-    pollset.active_fd.array[eix] = fd;
-
-    erts_atomic32_set_relb(&pollset.active_fd.no,
-			       (erts_atomic32_read_dirty(&pollset.active_fd.no)
-				+ 1));
-
-    eix++;
-    if (eix >= size)
-	eix = 0;
-    pollset.active_fd.eix = eix;
-
-    if (pollset.active_fd.six == eix) {
-        grow_active_fds();
-    }
-}
-
 int
-ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix,
-			       ErlDrvEvent e,
-			       int mode,
-			       int on)
+driver_select(ErlDrvPort ix, ErlDrvEvent e, int mode, int on)
 {
     void (*stop_select_fn)(ErlDrvEvent, void*) = NULL;
     Port *prt = erts_drvport2port(ix);
     Eterm id = erts_drvport2id(ix);
     ErtsSysFdType fd = (ErtsSysFdType) e;
     ErtsPollEvents ctl_events = (ErtsPollEvents) 0;
-    ErtsPollEvents new_events, old_events;
+    ErtsPollEvents old_events;
+    ErtsPollEvents new_events;
+    ErtsPollOp ctl_op = ERTS_POLL_OP_MOD;
     ErtsDrvEventState *state;
-    int wake_poller;
+    int wake_poller = 0;
     int ret;
-#if ERTS_CIO_HAVE_DRV_EVENT
-    ErtsDrvEventDataState *free_event = NULL;
-#endif
     ErtsDrvSelectDataState *free_select = NULL;
     ErtsNifSelectDataState *free_nif = NULL;
 #ifdef USE_VM_PROBES
     DTRACE_CHARBUF(name, 64);
 #endif
+    ERTS_MSACC_PUSH_AND_SET_STATE(ERTS_MSACC_STATE_CHECK_IO);
 
-    if (prt == ERTS_INVALID_ERL_DRV_PORT)
+    if (prt == ERTS_INVALID_ERL_DRV_PORT) {
+        ERTS_MSACC_POP_STATE();
 	return -1;
+    }
 
     ERTS_LC_ASSERT(erts_lc_is_port_locked(prt));
 
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    if ((unsigned)fd >= (unsigned)erts_atomic_read_nob(&drv_ev_state_len)) {
-	if (fd < 0) {
-	    return -1;    
-	}
-	if (fd >= max_fds) {
-	    drv_select_large_fd_error(ix, fd, mode, on);
-	    return -1;
-	}
-	grow_drv_ev_state(fd);
+    if (!grow_drv_ev_state(fd)) {
+        if (fd > 0) drv_select_large_fd_error(ix, fd, mode, on);
+        ERTS_MSACC_POP_STATE();
+        return -1;
     }
 #endif
 
     erts_mtx_lock(fd_mtx(fd));
 
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    state = &drv_ev_state[(int) fd];
-#else
-    state = hash_get_drv_ev_state(fd); /* may be NULL! */
-#endif
+    state = get_drv_ev_state(fd); /* may be NULL! */
 
-    if (!on && (mode&ERL_DRV_USE_NO_CALLBACK) == ERL_DRV_USE) {
-	if (IS_FD_UNKNOWN(state)) {
-	    /* fast track to stop_select callback */
-	    stop_select_fn = prt->drv_ptr->stop_select;
-#ifdef USE_VM_PROBES
-	    strncpy(name, prt->drv_ptr->name,
-		    sizeof(DTRACE_CHARBUF_NAME(name))-1);
-	    name[sizeof(name)-1] = '\0';
-#endif
-	    ret = 0;
-	    goto done_unknown;
-	}
-	mode |= (ERL_DRV_READ | ERL_DRV_WRITE);
-	wake_poller = 1; /* to eject fd from pollset (if needed) */
-    }
-    else wake_poller = 0;
+    DEBUG_PRINT_FD("driver_select(%T, %p, %s, %d)",
+                   state, id, fd, drvmode2str(mode), on);
 
-#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    if (state == NULL) {
-	state = hash_new_drv_ev_state(fd);
+    if (!on) {
+        if (IS_FD_UNKNOWN(state)) {
+            if ((mode&ERL_DRV_USE_NO_CALLBACK) == ERL_DRV_USE) {
+                /* fast track to stop_select callback */
+                stop_select_fn = prt->drv_ptr->stop_select;
+        #ifdef USE_VM_PROBES
+                strncpy(name, prt->drv_ptr->name,
+                        sizeof(DTRACE_CHARBUF_NAME(name))-1);
+                name[sizeof(name)-1] = '\0';
+        #endif
+            }
+            ret = 0;
+            goto done_unknown;
+        }
+        else if ((mode&ERL_DRV_USE_NO_CALLBACK) == ERL_DRV_USE) {
+            mode |= (ERL_DRV_READ | ERL_DRV_WRITE);
+        }
     }
-#endif
+
+    state = new_drv_ev_state(state, fd);
 
     switch (state->type) {
-#if ERTS_CIO_HAVE_DRV_EVENT
-    case ERTS_EV_TYPE_DRV_EV:
-#endif
     case ERTS_EV_TYPE_NIF:
         drv_select_steal(ix, state, mode, on);
         break;
@@ -1032,7 +718,9 @@ ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix,
         ASSERT(state->type == ERTS_EV_TYPE_NONE);
         break;
 
-    }}
+    }
+    default: break;
+    }
 
     if (mode & ERL_DRV_READ) {
 	if (state->type == ERTS_EV_TYPE_DRV_SEL) {
@@ -1040,7 +728,7 @@ ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix,
 	    if (owner != id && is_not_nil(owner))
 		drv_select_steal(ix, state, mode, on);
 	}
-	ctl_events |= ERTS_POLL_EV_IN;
+        ctl_events = ERTS_POLL_EV_IN;
     }
     if (mode & ERL_DRV_WRITE) {
 	if (state->type == ERTS_EV_TYPE_DRV_SEL) {
@@ -1049,100 +737,105 @@ ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix,
 		drv_select_steal(ix, state, mode, on);
 	}
 	ctl_events |= ERTS_POLL_EV_OUT;
-    }	
+    }
+
 
     ASSERT((state->type == ERTS_EV_TYPE_DRV_SEL) ||
 	   (state->type == ERTS_EV_TYPE_NONE && !state->events));
 
-    if (!on && !(state->flags & ERTS_EV_FLAG_USED) 
-	&& state->events && !(state->events & ~ctl_events)) {	
-	/* Old driver removing all events. At least wake poller.
-	   It will not make close() 100% safe but it will prevent
-	   actions delayed by poll timeout. */
-	wake_poller = 1;
-    }
+    old_events = state->events;
 
-    new_events = ERTS_CIO_POLL_CTL(pollset.ps, state->fd, ctl_events, on, &wake_poller);
+    if (on) {
+        ctl_events &= ~old_events;
+        state->events |= ctl_events;
+        if (ctl_events & ERTS_POLL_EV_IN && (!state->driver.select || !is_iotask_active(&state->driver.select->iniotask)))
+            state->active_events |= ERTS_POLL_EV_IN;
+        if (ctl_events & ERTS_POLL_EV_OUT && (!state->driver.select || !is_iotask_active(&state->driver.select->outiotask)))
+            state->active_events |= ERTS_POLL_EV_OUT;
+        if (old_events == 0 && !(state->flags & ERTS_EV_FLAG_USED)) {
+            ctl_op = ERTS_POLL_OP_ADD;
+        }
+    }
+    else {
+        ctl_events &= old_events;
+        state->events &= ~ctl_events;
+        state->active_events &= ~ctl_events;
 
-    if (new_events & (ERTS_POLL_EV_ERR|ERTS_POLL_EV_NVAL)) {
-	if (state->type == ERTS_EV_TYPE_DRV_SEL && !state->events) {
-	    state->type = ERTS_EV_TYPE_NONE;
-	    state->flags &= ~ERTS_EV_FLAG_USED;
-	    state->driver.select->inport = NIL;
-	    state->driver.select->outport = NIL;
-	}
-	ret = -1;
-	goto done;
+        if (!state->events) {
+            if (!(state->flags & ERTS_EV_FLAG_USED) || mode & ERL_DRV_USE)
+                ctl_op = ERTS_POLL_OP_DEL;
+        }
     }
 
-    old_events = state->events;
+    if (ctl_events || ctl_op == ERTS_POLL_OP_DEL) {
 
-    ASSERT(on
-	   ? (new_events == (state->events | ctl_events))
-	   : (new_events == (state->events & ~ctl_events)));
+        new_events = erts_io_control_wakeup(state, ctl_op,
+                                            state->active_events,
+                                            &wake_poller);
 
-    ASSERT(state->type == ERTS_EV_TYPE_DRV_SEL
-	   || state->type == ERTS_EV_TYPE_NONE);
+        ASSERT(state->type == ERTS_EV_TYPE_DRV_SEL || state->type == ERTS_EV_TYPE_NONE);
+    }
 
-    state->events = new_events;
-    if (ctl_events) {
-	if (on) {
+    if (on) {
+        if (ctl_events) {
 	    if (!state->driver.select)
-		state->driver.select = alloc_drv_select_data();
+		state->driver.select = alloc_drv_select_data(state->fd);
 	    if (state->type == ERTS_EV_TYPE_NONE)
 		state->type = ERTS_EV_TYPE_DRV_SEL;
 	    ASSERT(state->type == ERTS_EV_TYPE_DRV_SEL);
-	    if (ctl_events & ERTS_POLL_EV_IN)
+	    if (ctl_events & ERTS_POLL_EV_IN) {
 		state->driver.select->inport = id;
-	    if (ctl_events & ERTS_POLL_EV_OUT)
+                if (new_events & (ERTS_POLL_EV_ERR|ERTS_POLL_EV_NVAL))
+                    iready(id, state);
+            }
+	    if (ctl_events & ERTS_POLL_EV_OUT) {
 		state->driver.select->outport = id;
-	    if (mode & ERL_DRV_USE) {
+                if (new_events & (ERTS_POLL_EV_ERR|ERTS_POLL_EV_NVAL))
+                    oready(id, state);
+            }
+	    if (mode & ERL_DRV_USE)
 		state->flags |= ERTS_EV_FLAG_USED;
-	    }
-	}
-	else { /* off */
-	    if (state->type == ERTS_EV_TYPE_DRV_SEL) {
-		if (ctl_events & ERTS_POLL_EV_IN) {
-		    abort_tasks(state, ERL_DRV_READ);
-		    state->driver.select->inport = NIL;
-		}
-		if (ctl_events & ERTS_POLL_EV_OUT) {
-		    abort_tasks(state, ERL_DRV_WRITE);
-		    state->driver.select->outport = NIL;
-		}
-		if (new_events == 0) {
-		    if (old_events != 0) {
-			remember_removed(state, &pollset);
-		    }		    
-		    if ((mode & ERL_DRV_USE) || !(state->flags & ERTS_EV_FLAG_USED)) {
-			state->type = ERTS_EV_TYPE_NONE;
-			state->flags &= ~ERTS_EV_FLAG_USED;
-		    }
-		    /*else keep it, as fd will probably be selected upon again */
-		}
-	    }
-	    if ((mode & ERL_DRV_USE_NO_CALLBACK) == ERL_DRV_USE) {
-		erts_driver_t* drv_ptr = prt->drv_ptr;
-		ASSERT(new_events==0);
-		if (state->remove_cnt == 0 || !wake_poller) {
-		    /* Safe to close fd now as it is not in pollset
-		       or there was no need to eject fd (kernel poll) */
-		    stop_select_fn = drv_ptr->stop_select;
+        }
+    }
+    else { /* off */
+        if (state->type == ERTS_EV_TYPE_DRV_SEL) {
+            if (ctl_events & ERTS_POLL_EV_IN) {
+                abort_tasks(state, ERL_DRV_READ);
+                state->driver.select->inport = NIL;
+            }
+            if (ctl_events & ERTS_POLL_EV_OUT) {
+                abort_tasks(state, ERL_DRV_WRITE);
+                state->driver.select->outport = NIL;
+            }
+            if (state->events == 0) {
+                if ((mode & ERL_DRV_USE) || !(state->flags & ERTS_EV_FLAG_USED)) {
+                    state->type = ERTS_EV_TYPE_NONE;
+                    state->flags = 0;
+                }
+                /*else keep it, as fd will probably be selected upon again */
+            }
+        }
+        if ((mode & ERL_DRV_USE_NO_CALLBACK) == ERL_DRV_USE) {
+            erts_driver_t* drv_ptr = prt->drv_ptr;
+            ASSERT(state->events==0);
+            if (!wake_poller) {
+                /* Safe to close fd now as it is not in pollset
+                   or there was no need to eject fd (kernel poll) */
+                stop_select_fn = drv_ptr->stop_select;
 #ifdef USE_VM_PROBES
-		    strncpy(name, prt->drv_ptr->name, sizeof(name)-1);
-		    name[sizeof(name)-1] = '\0';
+                strncpy(name, prt->drv_ptr->name, sizeof(name)-1);
+                name[sizeof(name)-1] = '\0';
 #endif
-		}
-		else {
-		    /* Not safe to close fd, postpone stop_select callback. */
-		    state->type = ERTS_EV_TYPE_STOP_USE;
-		    state->driver.stop.drv_ptr = drv_ptr;
-		    if (drv_ptr->handle) {
-			erts_ddll_reference_referenced_driver(drv_ptr->handle);
-		    }
-		}
-	    }
-	}
+            }
+            else {
+                /* Not safe to close fd, postpone stop_select callback. */
+                state->type = ERTS_EV_TYPE_STOP_USE;
+                state->driver.stop.drv_ptr = drv_ptr;
+                if (drv_ptr->handle) {
+                    erts_ddll_reference_referenced_driver(drv_ptr->handle);
+                }
+            }
+        }
     }
    
     ret = 0;
@@ -1150,9 +843,6 @@ ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix,
 done:
 
     check_fd_cleanup(state,
-#if ERTS_CIO_HAVE_DRV_EVENT
-		     &free_event,
-#endif
 		     &free_select,
                      &free_nif);
 
@@ -1170,61 +860,47 @@ done_unknown:
     if (free_nif)
         free_nif_select_data(free_nif);
 
-#if ERTS_CIO_HAVE_DRV_EVENT
-    if (free_event)
-	free_drv_event_data(free_event);
-#endif
+    ERTS_MSACC_POP_STATE();
+
     return ret;
 }
 
 int
-ERTS_CIO_EXPORT(enif_select)(ErlNifEnv* env,
-                             ErlNifEvent e,
-                             enum ErlNifSelectFlags mode,
-                             void* obj,
-                             const ErlNifPid* pid,
-                             Eterm ref)
+enif_select(ErlNifEnv* env,
+            ErlNifEvent e,
+            enum ErlNifSelectFlags mode,
+            void* obj,
+            const ErlNifPid* pid,
+            Eterm ref)
 {
     int on;
     ErtsResource* resource = DATA_TO_RESOURCE(obj);
     ErtsSysFdType fd = (ErtsSysFdType) e;
     ErtsPollEvents ctl_events = (ErtsPollEvents) 0;
-    ErtsPollEvents new_events, old_events;
+    ErtsPollEvents old_events;
+    ErtsPollOp ctl_op = ERTS_POLL_OP_MOD;
     ErtsDrvEventState *state;
-    int wake_poller;
-    int ret;
+    int ret, wake_poller = 0;
     enum { NO_STOP=0, CALL_STOP, CALL_STOP_AND_RELEASE } call_stop = NO_STOP;
-#if ERTS_CIO_HAVE_DRV_EVENT
-    ErtsDrvEventDataState *free_event = NULL;
-#endif
     ErtsDrvSelectDataState *free_select = NULL;
     ErtsNifSelectDataState *free_nif = NULL;
-#ifdef USE_VM_PROBES
-    DTRACE_CHARBUF(name, 64);
-#endif
 
     ASSERT(!(resource->monitors && resource->monitors->is_dying));
 
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    if ((unsigned)fd >= (unsigned)erts_atomic_read_nob(&drv_ev_state_len)) {
-	if (fd < 0) {
-	    return INT_MIN | ERL_NIF_SELECT_INVALID_EVENT;
-	}
-	if (fd >= max_fds) {
-	    nif_select_large_fd_error(fd, mode, resource, ref);
-            return INT_MIN | ERL_NIF_SELECT_INVALID_EVENT;
-	}
-	grow_drv_ev_state(fd);
+    if (!grow_drv_ev_state(fd)) {
+        if (fd > 0) nif_select_large_fd_error(fd, mode, resource, ref);
+        return INT_MIN | ERL_NIF_SELECT_INVALID_EVENT;
     }
 #endif
 
     erts_mtx_lock(fd_mtx(fd));
 
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    state = &drv_ev_state[(int) fd];
-#else
-    state = hash_get_drv_ev_state(fd); /* may be NULL! */
-#endif
+    state = get_drv_ev_state(fd); /* may be NULL! */
+
+    DEBUG_PRINT_FD("enif_select(%T, %d, %s, %p, %T, %T)",
+                   state, env->proc->common.id, fd, nifmode2str(mode), resource,
+                   pid ? pid->pid : THE_NON_VALUE, ref);
 
     if (mode & ERL_NIF_SELECT_STOP) {
         ASSERT(resource->type->stop);
@@ -1236,13 +912,12 @@ ERTS_CIO_EXPORT(enif_select)(ErlNifEnv* env,
         }
         on = 0;
         mode = ERL_DRV_READ | ERL_DRV_WRITE | ERL_DRV_USE;
-        wake_poller = 1; /* to eject fd from pollset (if needed) */
         ctl_events = ERTS_POLL_EV_IN | ERTS_POLL_EV_OUT;
+        ctl_op = ERTS_POLL_OP_DEL;
     }
     else {
         on = 1;
         ASSERT(mode);
-        wake_poller = 0;
         if (mode & ERL_DRV_READ) {
             ctl_events |= ERTS_POLL_EV_IN;
         }
@@ -1251,11 +926,7 @@ ERTS_CIO_EXPORT(enif_select)(ErlNifEnv* env,
         }
     }
 
-#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    if (state == NULL) {
-	state = hash_new_drv_ev_state(fd);
-    }
-#endif
+    state = new_drv_ev_state(state,fd);
 
     switch (state->type) {
     case ERTS_EV_TYPE_NIF:
@@ -1266,9 +937,6 @@ ERTS_CIO_EXPORT(enif_select)(ErlNifEnv* env,
         if (state->driver.stop.resource != resource)
             nif_select_steal(state, ERL_DRV_READ | ERL_DRV_WRITE, resource, ref);
         break;
-#if ERTS_CIO_HAVE_DRV_EVENT
-    case ERTS_EV_TYPE_DRV_EV:
-#endif
     case ERTS_EV_TYPE_DRV_SEL:
         nif_select_steal(state, mode, resource, ref);
         break;
@@ -1289,37 +957,52 @@ ERTS_CIO_EXPORT(enif_select)(ErlNifEnv* env,
         }
         ASSERT(state->type == ERTS_EV_TYPE_NONE);
         break;
-    }}
+    }
+    default: break;
+    }
 
     ASSERT((state->type == ERTS_EV_TYPE_NIF) ||
 	   (state->type == ERTS_EV_TYPE_NONE && !state->events));
 
-    new_events = ERTS_CIO_POLL_CTL(pollset.ps, state->fd, ctl_events, on, &wake_poller);
+    old_events = state->events;
 
-    if (new_events & (ERTS_POLL_EV_ERR|ERTS_POLL_EV_NVAL)) {
-	if (state->type == ERTS_EV_TYPE_NIF && !state->events) {
-	    state->type = ERTS_EV_TYPE_NONE;
-	    state->flags &= ~ERTS_EV_FLAG_USED;
-	    state->driver.nif->in.pid = NIL;
-	    state->driver.nif->out.pid = NIL;
-            state->driver.nif->in.ddeselect_cnt = 0;
-            state->driver.nif->out.ddeselect_cnt = 0;
-            state->driver.stop.resource = NULL;
-	}
-	ret = INT_MIN | ERL_NIF_SELECT_FAILED;
-	goto done;
+    if (on) {
+        ctl_events &= ~old_events;
+        state->events |= ctl_events;
+        state->active_events |= ctl_events;
+        if (state->type == ERTS_EV_TYPE_NONE)
+            ctl_op = ERTS_POLL_OP_ADD;
+    }
+    else {
+        ctl_events &= old_events;
+        state->events &= ~ctl_events;
+        state->active_events &= ~ctl_events;
     }
 
-    old_events = state->events;
+    if (ctl_events || ctl_op == ERTS_POLL_OP_DEL) {
+        ErtsPollEvents new_events;
 
-    ASSERT(on
-	   ? (new_events == (state->events | ctl_events))
-	   : (new_events == (state->events & ~ctl_events)));
+        new_events = erts_io_control_wakeup(state, ctl_op,
+                                            state->active_events,
+                                            &wake_poller);
+
+        if (new_events & (ERTS_POLL_EV_ERR|ERTS_POLL_EV_NVAL)) {
+            if (state->type == ERTS_EV_TYPE_NIF && !old_events) {
+                state->type = ERTS_EV_TYPE_NONE;
+                state->flags = 0;
+                state->driver.nif->in.pid = NIL;
+                state->driver.nif->out.pid = NIL;
+                state->driver.stop.resource = NULL;
+            }
+            ret = INT_MIN | ERL_NIF_SELECT_FAILED;
+            goto done;
+        }
+        ASSERT(new_events == state->events);
+    }
 
     ASSERT(state->type == ERTS_EV_TYPE_NIF
 	   || state->type == ERTS_EV_TYPE_NONE);
 
-    state->events = new_events;
     if (on) {
         const Eterm recipient = pid ? pid->pid : env->proc->common.id;
         Uint32* refn;
@@ -1332,7 +1015,7 @@ ERTS_CIO_EXPORT(enif_select)(ErlNifEnv* env,
         }
         ASSERT(state->type == ERTS_EV_TYPE_NIF);
         ASSERT(state->driver.stop.resource == resource);
-        if (ctl_events & ERTS_POLL_EV_IN) {
+        if (mode & ERL_DRV_READ) {
             state->driver.nif->in.pid = recipient;
             if (is_immed(ref)) {
                 state->driver.nif->in.immed = ref;
@@ -1340,13 +1023,11 @@ ERTS_CIO_EXPORT(enif_select)(ErlNifEnv* env,
                 ASSERT(is_internal_ref(ref));
                 refn = internal_ref_numbers(ref);
                 state->driver.nif->in.immed = THE_NON_VALUE;
-                state->driver.nif->in.refn[0] = refn[0];
-                state->driver.nif->in.refn[1] = refn[1];
-                state->driver.nif->in.refn[2] = refn[2];
+                sys_memcpy(state->driver.nif->in.refn, refn,
+                           sizeof(state->driver.nif->in.refn));
             }
-            state->driver.nif->in.ddeselect_cnt = 0;
         }
-        if (ctl_events & ERTS_POLL_EV_OUT) {
+        if (mode & ERL_DRV_WRITE) {
             state->driver.nif->out.pid = recipient;
             if (is_immed(ref)) {
                 state->driver.nif->out.immed = ref;
@@ -1354,11 +1035,9 @@ ERTS_CIO_EXPORT(enif_select)(ErlNifEnv* env,
                 ASSERT(is_internal_ref(ref));
                 refn = internal_ref_numbers(ref);
                 state->driver.nif->out.immed = THE_NON_VALUE;
-                state->driver.nif->out.refn[0] = refn[0];
-                state->driver.nif->out.refn[1] = refn[1];
-                state->driver.nif->out.refn[2] = refn[2];
+                sys_memcpy(state->driver.nif->out.refn, refn,
+                           sizeof(state->driver.nif->out.refn));
             }
-            state->driver.nif->out.ddeselect_cnt = 0;
         }
         ret = 0;
     }
@@ -1366,14 +1045,9 @@ ERTS_CIO_EXPORT(enif_select)(ErlNifEnv* env,
         if (state->type == ERTS_EV_TYPE_NIF) {
             state->driver.nif->in.pid = NIL;
             state->driver.nif->out.pid = NIL;
-            state->driver.nif->in.ddeselect_cnt = 0;
-            state->driver.nif->out.ddeselect_cnt = 0;
-            if (old_events != 0) {
-                remember_removed(state, &pollset);
-            }
         }
-        ASSERT(new_events==0);
-        if (state->remove_cnt == 0 || !wake_poller) {
+        ASSERT(state->events==0);
+        if (!wake_poller) {
             /*
              * Safe to close fd now as it is not in pollset
              * or there was no need to eject fd (kernel poll)
@@ -1405,9 +1079,6 @@ ERTS_CIO_EXPORT(enif_select)(ErlNifEnv* env,
 done:
 
     check_fd_cleanup(state,
-#if ERTS_CIO_HAVE_DRV_EVENT
-		     &free_event,
-#endif
 		     &free_select,
                      &free_nif);
 
@@ -1424,160 +1095,7 @@ done_unknown:
     if (free_nif)
         free_nif_select_data(free_nif);
 
-#if ERTS_CIO_HAVE_DRV_EVENT
-    if (free_event)
-	free_drv_event_data(free_event);
-#endif
-    return ret;
-}
-
-
-int
-ERTS_CIO_EXPORT(driver_event)(ErlDrvPort ix,
-			      ErlDrvEvent e,
-			      ErlDrvEventData event_data)
-{
-#if !ERTS_CIO_HAVE_DRV_EVENT
-    return -1;
-#else
-    ErtsSysFdType fd = (ErtsSysFdType) e;
-    ErtsPollEvents events;
-    ErtsPollEvents add_events;
-    ErtsPollEvents remove_events;
-    Eterm id = erts_drvport2id(ix);
-    ErtsDrvEventState *state;
-    int do_wake = 0;
-    int ret;
-#if ERTS_CIO_HAVE_DRV_EVENT
-    ErtsDrvEventDataState *free_event;
-#endif
-    ErtsDrvSelectDataState *free_select;
-    ErtsNifSelectDataState *free_nif;
-    Port *prt = erts_drvport2port(ix);
-
-    if (prt == ERTS_INVALID_ERL_DRV_PORT)
-	return -1;
-
-    ERTS_LC_ASSERT(erts_lc_is_port_locked(prt));
-
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    if ((unsigned)fd >= (unsigned)erts_atomic_read_nob(&drv_ev_state_len)) {
-	if (fd < 0)
-	    return -1;    
-	if (fd >= max_fds) {
-	    event_large_fd_error(ix, fd, event_data);
-	    return -1;
-	}
-	grow_drv_ev_state(fd);
-    }
-#endif
-
-    erts_mtx_lock(fd_mtx(fd));
-
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    state = &drv_ev_state[(int) fd];
-#else
-    /* Could use hash_new directly, but want to keep the normal case fast */
-    state = hash_get_drv_ev_state(fd);
-    if (state == NULL) {
-	state = hash_new_drv_ev_state(fd);
-    }
-#endif
-
-    switch (state->type) {
-    case ERTS_EV_TYPE_DRV_EV:
-	if (state->driver.event->port == id) break;
-	/*fall through*/
-    case ERTS_EV_TYPE_DRV_SEL:
-	drv_event_steal(ix, state, event_data);
-	break;
-    case ERTS_EV_TYPE_STOP_USE: {
-	erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
-	print_drv_event_op(dsbufp, ix, fd, event_data);
-	steal_pending_stop_use(dsbufp, ix, state, 0, 1);
-	break;
-      }
-    }
-
-    ASSERT(state->type == ERTS_EV_TYPE_DRV_EV
-	   || state->type == ERTS_EV_TYPE_NONE);
-
-    events = state->events;
-
-    if (!event_data) {
-	remove_events = events;
-	add_events = 0;
-    }
-    else {
-	remove_events = ~event_data->events & events;
-	add_events = ~events & event_data->events;
-    }
-
-    if (add_events) {
-	events = ERTS_CIO_POLL_CTL(pollset.ps, state->fd, add_events, 1, &do_wake);
-	if (events & (ERTS_POLL_EV_ERR|ERTS_POLL_EV_NVAL)) {
-	    ret = -1;
-	    goto done;
-	}
-    }
-    if (remove_events) {
-	events = ERTS_CIO_POLL_CTL(pollset.ps, state->fd, remove_events, 0, &do_wake);
-	if (events & (ERTS_POLL_EV_ERR|ERTS_POLL_EV_NVAL)) {
-	    ret = -1;
-	    goto done;
-	}
-    }
-    if (event_data && event_data->events != 0) {
-	if (state->type == ERTS_EV_TYPE_DRV_EV) {
-	    state->driver.event->removed_events &= ~add_events;
-	    state->driver.event->removed_events |= remove_events;
-	}
-	else {
-	    if (!state->driver.event)
-		state->driver.event = alloc_drv_event_data();
-	    state->driver.event->port = id;
-	    state->driver.event->removed_events = (ErtsPollEvents) 0;
-	    state->type = ERTS_EV_TYPE_DRV_EV;
-	}
-	state->driver.event->data = event_data;
-    }
-    else {
-	if (state->type == ERTS_EV_TYPE_DRV_EV) {
-	    abort_tasks(state, 0);
-	    state->driver.event->port = NIL;
-	    state->driver.event->data = NULL;
-	    state->driver.event->removed_events = (ErtsPollEvents) 0;
-	}
-	state->type = ERTS_EV_TYPE_NONE;
-	remember_removed(state, &pollset);
-    }
-    state->events = events;
-    ASSERT(event_data ? events == event_data->events : events == 0); 
-
-    ret = 0;
-
-done:
-
-    check_fd_cleanup(state,
-#if ERTS_CIO_HAVE_DRV_EVENT
-		     &free_event,
-#endif
-		     &free_select,
-                     &free_nif);
-
-    erts_mtx_unlock(fd_mtx(fd));
-
-    if (free_select)
-	free_drv_select_data(free_select);
-    if (free_nif)
-        free_nif_select_data(free_nif);
-#if ERTS_CIO_HAVE_DRV_EVENT
-    if (free_event)
-	free_drv_event_data(free_event);
-#endif
-
     return ret;
-#endif
 }
 
 static ERTS_INLINE int
@@ -1611,11 +1129,6 @@ need2steal(ErtsDrvEventState *state, int mode)
         do_steal = 1;
         break;
 
-#if ERTS_CIO_HAVE_DRV_EVENT
-    case ERTS_EV_TYPE_DRV_EV:
-	do_steal |= chk_stale(state->driver.event->port, state, 0);
-	break;
-#endif
     case ERTS_EV_TYPE_STOP_USE:
     case ERTS_EV_TYPE_STOP_NIF:
         ASSERT(0);
@@ -1649,7 +1162,7 @@ print_driver_name(erts_dsprintf_buf_t *dsbufp, Eterm id)
 static void
 steal(erts_dsprintf_buf_t *dsbufp, ErtsDrvEventState *state, int mode)
 {
-    erts_dsprintf(dsbufp, "stealing control of fd=%d from ", (int) GET_FD(state->fd));
+    erts_dsprintf(dsbufp, "stealing control of fd=%d from ", (int) state->fd);
     switch (state->type) {
     case ERTS_EV_TYPE_DRV_SEL: {
 	int deselect_mode = 0;
@@ -1673,7 +1186,7 @@ steal(erts_dsprintf_buf_t *dsbufp, ErtsDrvEventState *state, int mode)
 	if (deselect_mode)
 	    deselect(state, deselect_mode);
 	else {
-	    erts_dsprintf(dsbufp, "no one", (int) GET_FD(state->fd));
+	    erts_dsprintf(dsbufp, "no one", (int) state->fd);
 	    ASSERT(0);
 	}
 	erts_dsprintf(dsbufp, "\n");
@@ -1698,30 +1211,13 @@ steal(erts_dsprintf_buf_t *dsbufp, ErtsDrvEventState *state, int mode)
         erts_dsprintf(dsbufp, "\n");
         break;
     }
-#if ERTS_CIO_HAVE_DRV_EVENT
-    case ERTS_EV_TYPE_DRV_EV: {
-	Eterm eid = state->driver.event->port;
-	if (is_nil(eid)) {
-	    erts_dsprintf(dsbufp, "no one", (int) state->fd);
-	    ASSERT(0);
-	}
-	else {
-	    erts_dsprintf(dsbufp, "event driver ");
-	    print_driver_name(dsbufp, eid);
-	    erts_dsprintf(dsbufp, "%T ", eid);
-	}
-	erts_dsprintf(dsbufp, "\n");
-	deselect(state, 0);
-	break;
-    }
-#endif
     case ERTS_EV_TYPE_STOP_USE:
     case ERTS_EV_TYPE_STOP_NIF: {
 	ASSERT(0);
 	break;
     }
     default:
-	erts_dsprintf(dsbufp, "no one\n", (int) GET_FD(state->fd));
+	erts_dsprintf(dsbufp, "no one\n", (int) state->fd);
 	ASSERT(0);
     }
 }
@@ -1735,7 +1231,7 @@ print_drv_select_op(erts_dsprintf_buf_t *dsbufp,
 		  "driver_select(%p, %d,%s%s%s%s, %d) "
 		  "by ",
 		  ix,
-		  (int) GET_FD(fd),
+		  (int) fd,
 		  mode & ERL_DRV_READ ? " ERL_DRV_READ" : "",
 		  mode & ERL_DRV_WRITE ? " ERL_DRV_WRITE" : "",
 		  mode & ERL_DRV_USE ? " ERL_DRV_USE" : "",
@@ -1752,7 +1248,7 @@ print_nif_select_op(erts_dsprintf_buf_t *dsbufp,
 {
     erts_dsprintf(dsbufp,
 		  "enif_select(_, %d,%s%s%s, %T:%T, %T) ",
-		  (int) GET_FD(fd),
+		  (int) fd,
 		  mode & ERL_NIF_SELECT_READ ? " READ" : "",
 		  mode & ERL_NIF_SELECT_WRITE ? " WRITE" : "",
 		  mode & ERL_NIF_SELECT_STOP ? " STOP" : "",
@@ -1791,7 +1287,7 @@ large_fd_error_common(erts_dsprintf_buf_t *dsbufp, ErtsSysFdType fd)
 {
     erts_dsprintf(dsbufp,
 		  "fd=%d is larger than the largest allowed fd=%d\n",
-		  (int) fd, max_fds - 1);
+		  (int) fd, drv_ev_state.max_fds - 1);
 }
 
 static void
@@ -1847,7 +1343,7 @@ steal_pending_stop_use(erts_dsprintf_buf_t *dsbufp, ErlDrvPort ix,
             erts_ddll_dereference_driver(state->driver.stop.drv_ptr->handle);
         }
         state->type = ERTS_EV_TYPE_NONE;
-        state->flags &= ~ERTS_EV_FLAG_USED;
+        state->flags = 0;
         state->driver.stop.drv_ptr = NULL;
     }
     else {
@@ -1884,9 +1380,9 @@ steal_pending_stop_nif(erts_dsprintf_buf_t *dsbufp, ErtsResource* resource,
         erts_dsprintf(dsbufp, "called before stop was called for NIF resource %T:%T\n",
                       rt->module, rt->name);
 
-        enif_release_resource(state->driver.stop.resource);
+        enif_release_resource(state->driver.stop.resource->data);
         state->type = ERTS_EV_TYPE_NONE;
-        state->flags &= ~ERTS_EV_FLAG_USED;
+        state->flags = 0;
         state->driver.stop.resource = NULL;
     }
     else {
@@ -1896,59 +1392,9 @@ steal_pending_stop_nif(erts_dsprintf_buf_t *dsbufp, ErtsResource* resource,
 
 }
 
-
-#if ERTS_CIO_HAVE_DRV_EVENT
-
-static void
-print_drv_event_op(erts_dsprintf_buf_t *dsbufp,
-                   ErlDrvPort ix, ErtsSysFdType fd, ErlDrvEventData event_data)
-{
-    Port *pp = erts_drvport2port(ix);
-    erts_dsprintf(dsbufp, "driver_event(%p, %d, ", ix, (int) fd);
-    if (!event_data)
-	erts_dsprintf(dsbufp, "NULL");
-    else
-	erts_dsprintf(dsbufp, "{0x%x, 0x%x}",
-		      (unsigned int) event_data->events,
-		      (unsigned int) event_data->revents);
-    erts_dsprintf(dsbufp, ") by ");
-    if (pp != ERTS_INVALID_ERL_DRV_PORT)
-	print_driver_name(dsbufp, pp->common.id);
-    erts_dsprintf(dsbufp, "driver %T ", pp != ERTS_INVALID_ERL_DRV_PORT ? pp->common.id : NIL);
-}
-
-static void
-drv_event_steal(ErlDrvPort ix, ErtsDrvEventState *state, ErlDrvEventData event_data)
-{
-    if (need2steal(state, ERL_DRV_READ|ERL_DRV_WRITE)) {
-	erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
-	print_drv_event_op(dsbufp, ix, state->fd, event_data);
-	steal(dsbufp, state, ERL_DRV_READ|ERL_DRV_WRITE);
-	erts_send_error_to_logger_nogl(dsbufp);
-    }
-    else if (state->type == ERTS_EV_TYPE_DRV_SEL) {
-	ASSERT(state->flags & ERTS_EV_FLAG_USED);
-	deselect(state, 0);
-    }
-}
-
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-static void
-event_large_fd_error(ErlDrvPort ix, ErtsSysFdType fd, ErlDrvEventData event_data)
-{
-    erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
-    print_drv_event_op(dsbufp, ix, fd, event_data);
-    erts_dsprintf(dsbufp, "failed: ");
-    large_fd_error_common(dsbufp, fd);
-    erts_send_error_to_logger_nogl(dsbufp);
-}
-#endif
-#endif
-
 static ERTS_INLINE int
 io_task_schedule_allowed(ErtsDrvEventState *state,
-			 ErtsPortTaskType type,
-			 erts_aint_t current_cio_time)
+			 ErtsPortTaskType type)
 {
     ErtsIoTask *io_task;
 
@@ -1956,71 +1402,53 @@ io_task_schedule_allowed(ErtsDrvEventState *state,
     case ERTS_PORT_TASK_INPUT:
 	if (!state->driver.select)
 	    return 0;
-#if ERTS_CIO_HAVE_DRV_EVENT
-	if (state->driver.event)
-	    return 0;
-#endif
 	io_task = &state->driver.select->iniotask;
 	break;
     case ERTS_PORT_TASK_OUTPUT:
 	if (!state->driver.select)
 	    return 0;
-#if ERTS_CIO_HAVE_DRV_EVENT
-	if (state->driver.event)
-	    return 0;
-#endif
 	io_task = &state->driver.select->outiotask;
 	break;
-#if ERTS_CIO_HAVE_DRV_EVENT
-    case ERTS_PORT_TASK_EVENT:
-	if (!state->driver.event)
-	    return 0;
-	if (state->driver.select)
-	    return 0;
-	io_task = &state->driver.event->iotask;
-	break;
-#endif
     default:
 	ERTS_INTERNAL_ERROR("Invalid I/O-task type");
 	return 0;
     }
 
-    return !is_iotask_active(io_task, current_cio_time);
+    return !is_iotask_active(io_task);
 }
 
 static ERTS_INLINE void
-iready(Eterm id, ErtsDrvEventState *state, erts_aint_t current_cio_time)
+iready(Eterm id, ErtsDrvEventState *state)
 {
     if (io_task_schedule_allowed(state,
-				 ERTS_PORT_TASK_INPUT,
-				 current_cio_time)) {
+				 ERTS_PORT_TASK_INPUT)) {
 	ErtsIoTask *iotask = &state->driver.select->iniotask;
-	erts_atomic_set_nob(&iotask->executed_time, current_cio_time);
 	if (erts_port_task_schedule(id,
 				    &iotask->task,
 				    ERTS_PORT_TASK_INPUT,
 				    (ErlDrvEvent) state->fd) != 0) {
 	    stale_drv_select(id, state, ERL_DRV_READ);
-	}
-	add_active_fd(state->fd);
+	} else {
+            DEBUG_PRINT_FD("schedule ready_input(%T, %d)",
+                           state, id, state->fd);
+        }
     }
 }
 
 static ERTS_INLINE void
-oready(Eterm id, ErtsDrvEventState *state, erts_aint_t current_cio_time)
+oready(Eterm id, ErtsDrvEventState *state)
 {
     if (io_task_schedule_allowed(state,
-				 ERTS_PORT_TASK_OUTPUT,
-				 current_cio_time)) {
+				 ERTS_PORT_TASK_OUTPUT)) {
 	ErtsIoTask *iotask = &state->driver.select->outiotask;
-	erts_atomic_set_nob(&iotask->executed_time, current_cio_time);
 	if (erts_port_task_schedule(id,
 				    &iotask->task,
 				    ERTS_PORT_TASK_OUTPUT,
 				    (ErlDrvEvent) state->fd) != 0) {
 	    stale_drv_select(id, state, ERL_DRV_WRITE);
-	}
-	add_active_fd(state->fd);
+	} else {
+            DEBUG_PRINT_FD("schedule ready_output(%T, %d)", state, id, state->fd);
+        }
     }
 }
 
@@ -2072,131 +1500,59 @@ send_event_tuple(struct erts_nif_select_event* e, ErtsResource* resource,
         erts_proc_unlock(rp, rp_locks);
 }
 
-
-#if ERTS_CIO_HAVE_DRV_EVENT
-static ERTS_INLINE void
-eready(Eterm id, ErtsDrvEventState *state, ErlDrvEventData event_data,
-       erts_aint_t current_cio_time)
-{
-    if (io_task_schedule_allowed(state,
-				 ERTS_PORT_TASK_EVENT,
-				 current_cio_time)) {
-	ErtsIoTask *iotask = &state->driver.event->iotask;
-	erts_atomic_set_nob(&iotask->executed_time, current_cio_time);
-	if (erts_port_task_schedule(id,
-				    &iotask->task,
-				    ERTS_PORT_TASK_EVENT,
-				    (ErlDrvEvent) state->fd,
-				    event_data) != 0) {
-	    stale_drv_select(id, state, 0);
-	}
-	add_active_fd(state->fd);
-    }
-}
-#endif
-
 static void bad_fd_in_pollset(ErtsDrvEventState *, Eterm inport, Eterm outport);
 
-
 void
-ERTS_CIO_EXPORT(erts_check_io_interrupt)(int set)
+erts_check_io_interrupt(ErtsPollThread *psi, int set)
 {
-    ERTS_CIO_POLL_INTR(pollset.ps, set);
+    if (psi) {
+#if ERTS_POLL_USE_FALLBACK
+        if (psi->ps == get_fallback()) {
+            erts_poll_interrupt_flbk(psi->ps, set);
+            return;
+        }
+#endif
+        erts_poll_interrupt(psi->ps, set);
+    }
 }
 
-void
-ERTS_CIO_EXPORT(erts_check_io_interrupt_timed)(int set,
-					       ErtsMonotonicTime timeout_time)
-{
-    ERTS_CIO_POLL_INTR_TMD(pollset.ps, set, timeout_time);
+ErtsPollThread *
+erts_create_pollset_thread(int id) {
+    return psiv+id;
 }
 
-#if !ERTS_CIO_DEFER_ACTIVE_EVENTS
-/*
- * Number of ignored events, for a lingering fd added by enif_select(),
- * until we deselect fd-event from pollset.
- */
-# define ERTS_NIF_DELAYED_DESELECT 20
-#else
-/* Disable delayed deselect as pollset cannot handle active events */
-# define ERTS_NIF_DELAYED_DESELECT 1
-#endif
-
 void
-ERTS_CIO_EXPORT(erts_check_io)(int do_wait)
+erts_check_io(ErtsPollThread *psi)
 {
-    ErtsPollResFd *pollres;
     int pollres_len;
-    ErtsMonotonicTime timeout_time;
     int poll_ret, i;
-    erts_aint_t current_cio_time;
-    ErtsSchedulerData *esdp = erts_get_scheduler_data();
-
-    ASSERT(esdp);
+    ERTS_MSACC_PUSH_AND_SET_STATE(ERTS_MSACC_STATE_CHECK_IO);
 
  restart:
 
-#ifdef ERTS_BREAK_REQUESTED
-    if (ERTS_BREAK_REQUESTED)
-	erts_do_break_handling();
-#endif
-
-#ifdef ERTS_SIGNAL_STATE /* ifndef ERTS_SMP */
-    if (ERTS_SIGNAL_STATE) {
-        erts_handle_signal_state();
-    }
-#endif
-
-    /* Figure out timeout value */
-    timeout_time = (do_wait
-		    ? erts_check_next_timeout_time(esdp)
-		    : ERTS_POLL_NO_TIMEOUT /* poll only */);
-
-    /*
-     * No need for an atomic inc op when incrementing
-     * erts_check_io_time, since only one thread can
-     * check io at a time.
-     */
-    current_cio_time = erts_atomic_read_dirty(&erts_check_io_time);
-    current_cio_time++;
-    erts_atomic_set_relb(&erts_check_io_time, current_cio_time);
-
-    check_cleanup_active_fds(current_cio_time,
-                             timeout_time != ERTS_POLL_NO_TIMEOUT);
-
 #ifdef ERTS_ENABLE_LOCK_CHECK
     erts_lc_check_exact(NULL, 0); /* No locks should be locked */
 #endif
 
-    pollres_len = erts_atomic32_read_dirty(&pollset.active_fd.no) + ERTS_CHECK_IO_POLL_RES_LEN;
+    pollres_len = psi->pollres_len;
 
-    pollres = erts_alloc(ERTS_ALC_T_TMP, sizeof(ErtsPollResFd)*pollres_len);
+#if ERTS_POLL_USE_FALLBACK
+    if (psi->ps == get_fallback()) {
 
-    erts_atomic_set_nob(&pollset.in_poll_wait, 1);
+        poll_ret = erts_poll_wait_flbk(psi->ps, psi->pollres, &pollres_len);
 
-    poll_ret = ERTS_CIO_POLL_WAIT(pollset.ps, pollres, &pollres_len, timeout_time);
+    } else
+#endif
+    {
+        poll_ret = erts_poll_wait(psi->ps, psi->pollres, &pollres_len);
+    }
 
 #ifdef ERTS_ENABLE_LOCK_CHECK
     erts_lc_check_exact(NULL, 0); /* No locks should be locked */
 #endif
 
-#ifdef ERTS_BREAK_REQUESTED
-    if (ERTS_BREAK_REQUESTED)
-	erts_do_break_handling();
-#endif
-
-
-#ifdef ERTS_SIGNAL_STATE /* ifndef ERTS_SMP */
-    if (ERTS_SIGNAL_STATE) {
-        erts_handle_signal_state();
-    }
-#endif
-
-
     if (poll_ret != 0) {
-	erts_atomic_set_nob(&pollset.in_poll_wait, 0);
-	forget_removed(&pollset);
-	erts_free(ERTS_ALC_T_TMP, pollres);
+
 	if (poll_ret == EAGAIN) {
 	    goto restart;
 	}
@@ -2212,65 +1568,86 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait)
 			  erl_errno_id(poll_ret), poll_ret);
 	    erts_send_error_to_logger_nogl(dsbufp);
 	}
+        ERTS_MSACC_POP_STATE();
 	return;
     }
 
     for (i = 0; i < pollres_len; i++) {
 
-	ErtsSysFdType fd = (ErtsSysFdType) pollres[i].fd;
+        erts_driver_t* drv_ptr = NULL;
+        ErtsResource* resource = NULL;
+        ErtsDrvSelectDataState *free_select = NULL;
+        ErtsNifSelectDataState *free_nif = NULL;
+	ErtsSysFdType fd = (ErtsSysFdType) ERTS_POLL_RES_GET_FD(&psi->pollres[i]);
 	ErtsDrvEventState *state;
+        ErtsPollEvents revents;
 
 	erts_mtx_lock(fd_mtx(fd));
 
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-	state = &drv_ev_state[ (int) fd];
-#else
-	state = hash_get_drv_ev_state(fd);
+	state = get_drv_ev_state(fd);
+
 	if (!state) {
-	    goto next_pollres;
+            erts_mtx_unlock(fd_mtx(fd));
+            continue;
 	}
-#endif
 
-	/* Skip this fd if it was removed from pollset */
-	if (is_removed(state)) {
-	    goto next_pollres;
-	}
+        revents = ERTS_POLL_RES_GET_EVTS(&psi->pollres[i]);
+
+        DEBUG_PRINT_FD("triggered %s", state, ev2str(revents));
+
+        if (revents & ERTS_POLL_EV_ERR) {
+            /*
+             * Handle error events by triggering all in/out events
+             * that has been selected on.
+             * We *do not* want to call a callback that corresponds
+             * to an event not selected.
+             */
+            revents = state->active_events;
+            state->active_events = 0;
+        } else {
+
+            /* Disregard any events that are not active at the moment,
+               for instance this could happen if the driver/nif does
+               select/deselect in rapid succession. */
+            revents &= state->active_events | ERTS_POLL_EV_NVAL;
+            state->active_events &= ~revents;
+
+            /* Reactivate the poll op if there are still active events */
+            if (state->active_events) {
+                ErtsPollEvents new_events;
+                DEBUG_PRINT_FD("re-enable %s", state, ev2str(state->active_events));
+
+                new_events = erts_io_control(state, ERTS_POLL_OP_MOD, state->active_events);
+
+                /* Unable to re-enable the fd, signal all callbacks */
+                if (new_events & (ERTS_POLL_EV_ERR|ERTS_POLL_EV_NVAL)) {
+                    revents |= state->active_events;
+                    state->active_events = 0;
+                }
+            }
+        }
 
 	switch (state->type) {
 	case ERTS_EV_TYPE_DRV_SEL: { /* Requested via driver_select()... */
-	    ErtsPollEvents revents = pollres[i].events;
-
-            if (revents & ERTS_POLL_EV_ERR) {
-                /*
-                 * Handle error events by triggering all in/out events
-                 * that the driver has selected.
-                 * We *do not* want to call a callback that corresponds
-		 * to an event not selected.
-                 */
-                revents = state->events;
-            }
-            else {
-                revents &= (state->events | ERTS_POLL_EV_NVAL);
-            }
 
             if (revents & (ERTS_POLL_EV_IN|ERTS_POLL_EV_OUT)) {
 		if (revents & ERTS_POLL_EV_OUT) {
-		    oready(state->driver.select->outport, state, current_cio_time);
+		    oready(state->driver.select->outport, state);
 		}
 		/* Someone might have deselected input since revents
 		   was read (true also on the non-smp emulator since
 		   oready() may have been called); therefore, update
 		   revents... */
-		revents &= state->events;
+                revents &= state->events;
 		if (revents & ERTS_POLL_EV_IN) {
-		    iready(state->driver.select->inport, state, current_cio_time);
+		    iready(state->driver.select->inport, state);
 		}
 	    }
 	    else if (revents & ERTS_POLL_EV_NVAL) {
 		bad_fd_in_pollset(state,
                                   state->driver.select->inport,
                                   state->driver.select->outport);
-		add_active_fd(state->fd);
+                check_fd_cleanup(state, &free_select, &free_nif);
 	    }
 	    break;
 	}
@@ -2279,108 +1656,116 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait)
             struct erts_nif_select_event in = {NIL};
             struct erts_nif_select_event out = {NIL};
             ErtsResource* resource = NULL;
-            ErtsPollEvents revents = pollres[i].events;
-
-            if (revents & ERTS_POLL_EV_ERR) {
-                /*
-                 * Handle error events by triggering all in/out events
-                 * that the NIF has selected.
-                 * We *do not* want to send a message that corresponds
-		 * to an event not selected.
-                 */
-                revents = state->events;
-            }
-            else {
-                revents &= (state->events | ERTS_POLL_EV_NVAL);
-            }
 
             if (revents & (ERTS_POLL_EV_IN|ERTS_POLL_EV_OUT)) {
                 if (revents & ERTS_POLL_EV_OUT) {
                     if (is_not_nil(state->driver.nif->out.pid)) {
                         out = state->driver.nif->out;
                         resource = state->driver.stop.resource;
-                        state->driver.nif->out.ddeselect_cnt = ERTS_NIF_DELAYED_DESELECT;
                         state->driver.nif->out.pid = NIL;
-                        add_active_fd(state->fd);
-                    }
-                    else {
-                        ASSERT(state->driver.nif->out.ddeselect_cnt >= 2);
-                        state->driver.nif->out.ddeselect_cnt--;
                     }
                 }
                 if (revents & ERTS_POLL_EV_IN) {
                     if (is_not_nil(state->driver.nif->in.pid)) {
                         in = state->driver.nif->in;
                         resource = state->driver.stop.resource;
-                        state->driver.nif->in.ddeselect_cnt = ERTS_NIF_DELAYED_DESELECT;
                         state->driver.nif->in.pid = NIL;
-                        add_active_fd(state->fd);
-                    }
-                    else {
-                        ASSERT(state->driver.nif->in.ddeselect_cnt >= 2);
-                        state->driver.nif->in.ddeselect_cnt--;
                     }
                 }
+                state->events &= ~revents;
             }
             else if (revents & ERTS_POLL_EV_NVAL) {
                 bad_fd_in_pollset(state, NIL, NIL);
-                add_active_fd(state->fd);
+                check_fd_cleanup(state, &free_select, &free_nif);
             }
 
             erts_mtx_unlock(fd_mtx(fd));
+
             if (is_not_nil(in.pid)) {
                 send_event_tuple(&in, resource, am_ready_input);
             }
             if (is_not_nil(out.pid)) {
                 send_event_tuple(&out, resource, am_ready_output);
             }
-            goto next_pollres_unlocked;
+            continue;
         }
 
-#if ERTS_CIO_HAVE_DRV_EVENT
-	case ERTS_EV_TYPE_DRV_EV: { /* Requested via driver_event()... */
-	    ErlDrvEventData event_data;
-	    ErtsPollEvents revents;
-	    ASSERT(state->driver.event);
-	    ASSERT(state->driver.event->data);
-	    event_data = state->driver.event->data;
-	    revents = pollres[i].events;
-	    revents &= ~state->driver.event->removed_events;
-
-	    if (revents) {
-		event_data->events = state->events;
-		event_data->revents = revents;
-		eready(state->driver.event->port, state, event_data, current_cio_time);
-	    }
-	    break;
-	}
-#endif
+        case ERTS_EV_TYPE_STOP_NIF: {
+            resource = state->driver.stop.resource;
+            state->type = ERTS_EV_TYPE_NONE;
+            goto case_ERTS_EV_TYPE_NONE;
+        }
 
+        case ERTS_EV_TYPE_STOP_USE: {
+#if ERTS_POLL_USE_FALLBACK
+            ASSERT(psi->ps == get_fallback());
+#endif
+            drv_ptr = state->driver.stop.drv_ptr;
+            state->type = ERTS_EV_TYPE_NONE;
+            /* fallthrough */
 	case ERTS_EV_TYPE_NONE: /* Deselected ... */
+        case_ERTS_EV_TYPE_NONE:
+            ASSERT(!state->events && !state->active_events && !state->flags);
+            check_fd_cleanup(state, &free_select, &free_nif);
 	    break;
+        }
 
 	default: { /* Error */
 	    erts_dsprintf_buf_t *dsbufp;
 	    dsbufp = erts_create_logger_dsbuf();
 	    erts_dsprintf(dsbufp,
 			  "Invalid event request type for fd in erts_poll()! "
-			  "fd=%d, event request type=%sd\n", (int) state->fd,
+			  "fd=%d, event request type=%d\n", (int) state->fd,
 			  (int) state->type);
 	    ASSERT(0);
 	    deselect(state, 0);
-	    add_active_fd(state->fd);
 	    break;
 	}
 	}
 
-	next_pollres:;
 	erts_mtx_unlock(fd_mtx(fd));
-        next_pollres_unlocked:;
-    }
 
-    erts_atomic_set_nob(&pollset.in_poll_wait, 0);
-    erts_free(ERTS_ALC_T_TMP, pollres);
-    forget_removed(&pollset);
+        if (drv_ptr) {
+            int was_unmasked = erts_block_fpe();
+            DTRACE1(driver_stop_select, drv_ptr->name);
+            LTTNG1(driver_stop_select, drv_ptr->name);
+            (*drv_ptr->stop_select)((ErlDrvEvent) fd, NULL);
+            erts_unblock_fpe(was_unmasked);
+            if (drv_ptr->handle) {
+		erts_ddll_dereference_driver(drv_ptr->handle);
+	    }
+        }
+        if (resource) {
+            erts_resource_stop(resource, (ErlNifEvent)fd, 1);
+            enif_release_resource(resource->data);
+        }
+        if (free_select)
+            free_drv_select_data(free_select);
+        if (free_nif)
+            free_nif_select_data(free_nif);
+    }
+
+    /* The entire pollres array was filled with events,
+     * grow it for the next call. We do this for two reasons:
+     * 1. Pulling out more events in on go will increase throughput
+     * 2. If the polling implementation is not fair, this will make
+     *    sure that we get all fds that we can. i.e. if 12 fds are
+     *    constantly active, but we only have a pollres_len of 10,
+     *    two of the fds may never be triggered depending on what the
+     *    kernel decides to do.
+     **/
+    if (pollres_len == psi->pollres_len) {
+        int ev_state_len = drv_ev_state_len();
+        erts_free(ERTS_ALC_T_POLLSET, psi->pollres);
+        psi->pollres_len *= 2;
+        /* Never grow it larger than the current drv_ev_state.len size */
+        if (psi->pollres_len > ev_state_len)
+            psi->pollres_len = ev_state_len;
+        psi->pollres = erts_alloc(ERTS_ALC_T_POLLSET,
+                                  sizeof(ErtsPollResFd) * psi->pollres_len);
+    }
+
+    ERTS_MSACC_POP_STATE();
 }
 
 static void
@@ -2474,16 +1859,16 @@ static int drv_ev_state_cmp(void *des1, void *des2)
 static void *drv_ev_state_alloc(void *des_tmpl)
 {
     ErtsDrvEventState *evstate;
-    erts_spin_lock(&state_prealloc_lock);
-    if (state_prealloc_first == NULL) {
-	erts_spin_unlock(&state_prealloc_lock);
+    erts_spin_lock(&drv_ev_state.prealloc_lock);
+    if (drv_ev_state.prealloc_first == NULL) {
+	erts_spin_unlock(&drv_ev_state.prealloc_lock);
 	evstate = (ErtsDrvEventState *) 
 	    erts_alloc(ERTS_ALC_T_DRV_EV_STATE, sizeof(ErtsDrvEventState));
     } else {
-	evstate = state_prealloc_first;
-	state_prealloc_first = (ErtsDrvEventState *) evstate->hb.next;
-	--num_state_prealloc;
-	erts_spin_unlock(&state_prealloc_lock);
+	evstate = drv_ev_state.prealloc_first;
+	drv_ev_state.prealloc_first = (ErtsDrvEventState *) evstate->hb.next;
+	--drv_ev_state.num_prealloc;
+	erts_spin_unlock(&drv_ev_state.prealloc_lock);
     }
     /* XXX: Already valid data if prealloced, could ignore template! */
     *evstate = *((ErtsDrvEventState *) des_tmpl);
@@ -2493,58 +1878,200 @@ static void *drv_ev_state_alloc(void *des_tmpl)
 
 static void drv_ev_state_free(void *des)
 {
-    erts_spin_lock(&state_prealloc_lock);
-    ((ErtsDrvEventState *) des)->hb.next = &state_prealloc_first->hb;
-    state_prealloc_first = (ErtsDrvEventState *) des;
-    ++num_state_prealloc;
-    erts_spin_unlock(&state_prealloc_lock);
+    erts_spin_lock(&drv_ev_state.prealloc_lock);
+    ((ErtsDrvEventState *) des)->hb.next = &drv_ev_state.prealloc_first->hb;
+    drv_ev_state.prealloc_first = (ErtsDrvEventState *) des;
+    ++drv_ev_state.num_prealloc;
+    erts_spin_unlock(&drv_ev_state.prealloc_lock);
 }
 #endif
 
+#define ERTS_MAX_NO_OF_POLL_THREADS ERTS_MAX_NO_OF_SCHEDULERS
+
+static char *
+get_arg(char* rest, char** argv, int* ip)
+{
+    int i = *ip;
+    if (*rest == '\0') {
+	if (argv[i+1] == NULL) {
+	    erts_fprintf(stderr, "too few arguments\n");
+	    erts_usage();
+	}
+        argv[i++] = NULL;
+        rest = argv[i];
+    }
+    argv[i] = NULL;
+    *ip = i;
+    return rest;
+}
+
+static void
+parse_args(int *argc, char **argv, int concurrent_waiters)
+{
+    int i = 0, j;
+    int no_pollsets = 0, no_poll_threads = 0,
+        no_pollsets_percentage = 0,
+        no_poll_threads_percentage = 0;
+    ASSERT(argc && argv);
+    while (i < *argc) {
+	if(argv[i][0] == '-') {
+	    switch (argv[i][1]) {
+            case 'I': {
+                if (strncmp(argv[i]+2, "Ot", 2) == 0) {
+                    char *arg = get_arg(argv[i]+4, argv, &i);
+                    if (sscanf(arg, "%d", &no_poll_threads) != 1 ||
+                        no_poll_threads < 1 ||
+                        ERTS_MAX_NO_OF_POLL_THREADS < no_poll_threads) {
+                        erts_fprintf(stderr,"bad I/O poll threads number: %s\n", arg);
+                        erts_usage();
+                    }
+                } else if (strncmp(argv[i]+2, "Op", 3) == 0) {
+                    char *arg = get_arg(argv[i]+4, argv, &i);
+                    if (sscanf(arg, "%d", &no_pollsets) != 1 ||
+                        no_pollsets < 1) {
+                        erts_fprintf(stderr,"bad I/O pollset number: %s\n", arg);
+                        erts_usage();
+                    }
+                } else if (strncmp(argv[i]+2, "OPt", 4) == 0) {
+                    char *arg = get_arg(argv[i]+5, argv, &i);
+                    if (sscanf(arg, "%d", &no_poll_threads_percentage) != 1 ||
+                        no_poll_threads_percentage < 0 ||
+                        no_poll_threads_percentage > 100) {
+                        erts_fprintf(stderr,"bad I/O poll thread percentage number: %s\n", arg);
+                        erts_usage();
+                    }
+                } else if (strncmp(argv[i]+2, "OPp", 4) == 0) {
+                    char *arg = get_arg(argv[i]+5, argv, &i);
+                    if (sscanf(arg, "%d", &no_pollsets_percentage) != 1 ||
+                        no_pollsets_percentage < 0 ||
+                        no_pollsets_percentage > 100) {
+                        erts_fprintf(stderr,"bad I/O pollset percentage number: %s\n", arg);
+                        erts_usage();
+                    }
+                } else {
+                    break;
+                }
+                break;
+            }
+            case 'K':
+                (void)get_arg(argv[i]+2, argv, &i);
+                break;
+            case '-':
+                goto args_parsed;
+            default:
+                break;
+            }
+        }
+        i++;
+    }
+
+args_parsed:
+
+    if (!concurrent_waiters) {
+        no_pollsets = no_poll_threads;
+        no_pollsets_percentage = 100;
+    }
+
+    if (no_poll_threads == 0) {
+        if (no_poll_threads_percentage == 0)
+            no_poll_threads = 1; /* This is the default */
+        else {
+            no_poll_threads = erts_no_schedulers * no_poll_threads_percentage / 100;
+            if (no_poll_threads < 1)
+                no_poll_threads = 1;
+        }
+    }
+
+    if (no_pollsets == 0) {
+        if (no_pollsets_percentage == 0)
+            no_pollsets = 1; /* This is the default */
+        else {
+            no_pollsets = no_poll_threads * no_pollsets_percentage / 100;
+            if (no_pollsets < 1)
+                no_pollsets = 1;
+        }
+    }
+
+    if (no_poll_threads < no_pollsets) {
+        erts_fprintf(stderr,
+                     "number of IO poll threads has to be greater or equal to "
+                     "the number of \nIO pollsets. Current values are set to: \n"
+                     "  -IOt %d -IOp %d\n",
+                     no_poll_threads, no_pollsets);
+        erts_usage();
+    }
+
+    /* Handled arguments have been marked with NULL. Slide arguments
+       not handled towards the beginning of argv. */
+    for (i = 0, j = 0; i < *argc; i++) {
+	if (argv[i])
+	    argv[j++] = argv[i];
+    }
+    *argc = j;
+
+    erts_no_pollsets = no_pollsets;
+    erts_no_poll_threads = no_poll_threads;
+}
+
 void
-ERTS_CIO_EXPORT(erts_init_check_io)(void)
+erts_init_check_io(int *argc, char **argv)
 {
+    int j, concurrent_waiters, no_poll_threads;
     ERTS_CT_ASSERT((INT_MIN & (ERL_NIF_SELECT_STOP_CALLED |
                                ERL_NIF_SELECT_STOP_SCHEDULED |
                                ERL_NIF_SELECT_INVALID_EVENT |
                                ERL_NIF_SELECT_FAILED)) == 0);
-    erts_atomic_init_nob(&erts_check_io_time, 0);
-    erts_atomic_init_nob(&pollset.in_poll_wait, 0);
-
-    ERTS_CIO_POLL_INIT();
-    pollset.ps = ERTS_CIO_NEW_POLLSET();
-
-    pollset.active_fd.six = 0;
-    pollset.active_fd.eix = 0;
-    erts_atomic32_init_nob(&pollset.active_fd.no, 0);
-    pollset.active_fd.size = ERTS_ACTIVE_FD_INC;
-    pollset.active_fd.array = erts_alloc(ERTS_ALC_T_ACTIVE_FD_ARR,
-					 sizeof(ErtsSysFdType)*ERTS_ACTIVE_FD_INC);
-#ifdef DEBUG
-    {
-	int i;
-	for (i = 0; i < ERTS_ACTIVE_FD_INC; i++)
-	    pollset.active_fd.array[i] = ERTS_SYS_FD_INVALID;
-    }
+
+
+    erts_poll_init(&concurrent_waiters);
+#if ERTS_POLL_USE_FALLBACK
+    erts_poll_init_flbk(NULL);
 #endif
 
+    parse_args(argc, argv, concurrent_waiters);
 
-    init_removed_fd_alloc();
-    pollset.removed_list = NULL;
-    erts_spinlock_init(&pollset.removed_list_lock, "pollset_rm_list", NIL,
-        ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_IO);
-    {
-        int i;
-        for (i=0; i<DRV_EV_STATE_LOCK_CNT; i++) {
-            erts_mtx_init(&drv_ev_state_locks[i].lck, "drv_ev_state", make_small(i),
-                ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_IO);
-        }
+    /* Create the actual pollsets */
+    pollsetv = erts_alloc(ERTS_ALC_T_POLLSET,sizeof(ErtsPollSet *) * erts_no_pollsets);
+
+    for (j=0; j < erts_no_pollsets; j++)
+        pollsetv[j] = erts_poll_create_pollset(j);
+
+#if ERTS_POLL_USE_FALLBACK
+    flbk_pollset = erts_poll_create_pollset_flbk(-1);
+#endif
+
+    no_poll_threads = erts_no_poll_threads;
+#if ERTS_POLL_USE_FALLBACK
+    no_poll_threads++;
+#endif
+
+    psiv = erts_alloc(ERTS_ALC_T_POLLSET, sizeof(ErtsPollThread) * no_poll_threads);
+
+#if ERTS_POLL_USE_FALLBACK
+    psiv[0].pollres_len = ERTS_CHECK_IO_POLL_RES_LEN;
+    psiv[0].pollres = erts_alloc(ERTS_ALC_T_POLLSET,
+        sizeof(ErtsPollResFd) * ERTS_CHECK_IO_POLL_RES_LEN);
+    psiv[0].ps = get_fallback();
+    psiv++;
+#endif
+
+    for (j = 0; j < erts_no_poll_threads; j++) {
+        psiv[j].pollres_len = ERTS_CHECK_IO_POLL_RES_LEN;
+        psiv[j].pollres = erts_alloc(ERTS_ALC_T_POLLSET,
+                                      sizeof(ErtsPollResFd) * ERTS_CHECK_IO_POLL_RES_LEN);
+        psiv[j].ps = pollsetv[j % erts_no_pollsets];
     }
+
+    for (j=0; j < ERTS_CHECK_IO_DRV_EV_STATE_LOCK_CNT; j++) {
+        erts_mtx_init(&drv_ev_state.locks[j].lck, "drv_ev_state", make_small(j),
+                          ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_IO);
+    }
+
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    max_fds = ERTS_CIO_POLL_MAX_FDS();
-    erts_atomic_init_nob(&drv_ev_state_len, 0);
-    drv_ev_state = NULL;
-    erts_mtx_init(&drv_ev_state_grow_lock, "drv_ev_state_grow", NIL,
+    drv_ev_state.max_fds = erts_poll_max_fds();
+    erts_atomic_init_nob(&drv_ev_state.len, 0);
+    drv_ev_state.v = NULL;
+    erts_mtx_init(&drv_ev_state.grow_lock, "drv_ev_state_grow", NIL,
         ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_IO);
 #else
     {
@@ -2553,153 +2080,182 @@ ERTS_CIO_EXPORT(erts_init_check_io)(void)
 	hf.cmp = &drv_ev_state_cmp;
 	hf.alloc = &drv_ev_state_alloc;
 	hf.free = &drv_ev_state_free;
-	num_state_prealloc = 0;
-	state_prealloc_first = NULL;
-	erts_spinlock_init(&state_prealloc_lock,"state_prealloc", NIL,
-        ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_IO);
-
-	safe_hash_init(ERTS_ALC_T_DRV_EV_STATE, &drv_ev_state_tab, "drv_ev_state_tab",
+	drv_ev_state.num_prealloc = 0;
+	drv_ev_state.prealloc_first = NULL;
+	erts_spinlock_init(&drv_ev_state.prealloc_lock, "state_prealloc", NIL,
+                               ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_IO);
+	safe_hash_init(ERTS_ALC_T_DRV_EV_STATE, &drv_ev_state.tab, "drv_ev_state_tab",
             ERTS_LOCK_FLAGS_CATEGORY_IO, DRV_EV_STATE_HTAB_SIZE, hf);
     }
 #endif
 }
 
 int
-ERTS_CIO_EXPORT(erts_check_io_max_files)(void)
+erts_check_io_max_files(void)
 {
 #ifdef  ERTS_SYS_CONTINOUS_FD_NUMBERS
-    return max_fds;
+    return drv_ev_state.max_fds;
 #else
-    return ERTS_POLL_EXPORT(erts_poll_max_fds)();
+    return erts_poll_max_fds();
 #endif
 }
 
 Uint
-ERTS_CIO_EXPORT(erts_check_io_size)(void)
+erts_check_io_size(void)
 {
-    Uint res;
+    Uint res = 0;
     ErtsPollInfo pi;
-    ERTS_CIO_POLL_INFO(pollset.ps, &pi);
-    res = pi.memory_size;
+    int i;
+
+#if ERTS_POLL_USE_FALLBACK
+    erts_poll_info(get_fallback(), &pi);
+    res += pi.memory_size;
+#endif
+
+    for (i = 0; i < erts_no_pollsets; i++) {
+        erts_poll_info(pollsetv[i], &pi);
+        res += pi.memory_size;
+    }
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    res += sizeof(ErtsDrvEventState) * erts_atomic_read_nob(&drv_ev_state_len);
+    res += sizeof(ErtsDrvEventState) * erts_atomic_read_nob(&drv_ev_state.len);
 #else
-    res += safe_hash_table_sz(&drv_ev_state_tab);
+    res += safe_hash_table_sz(&drv_ev_state.tab);
     {
 	SafeHashInfo hi;
-	safe_hash_get_info(&hi, &drv_ev_state_tab);
+	safe_hash_get_info(&hi, &drv_ev_state.tab);
 	res += hi.objs * sizeof(ErtsDrvEventState);
     }
-    erts_spin_lock(&state_prealloc_lock);
-    res += num_state_prealloc * sizeof(ErtsDrvEventState);
-    erts_spin_unlock(&state_prealloc_lock);
+    erts_spin_lock(&drv_ev_state.prealloc_lock);
+    res += drv_ev_state.num_prealloc * sizeof(ErtsDrvEventState);
+    erts_spin_unlock(&drv_ev_state.prealloc_lock);
 #endif
     return res;
 }
 
 Eterm
-ERTS_CIO_EXPORT(erts_check_io_info)(void *proc)
+erts_check_io_info(void *proc)
 {
     Process *p = (Process *) proc;
-    Eterm tags[16], values[16], res;
-    Uint sz, *szp, *hp, **hpp, memory_size;
-    Sint i;
-    ErtsPollInfo pi;
-    erts_aint_t cio_time = erts_atomic_read_acqb(&erts_check_io_time);
-    int active_fds = (int) erts_atomic32_read_acqb(&pollset.active_fd.no);
+    Eterm tags[16], values[16], res, list = NIL;
+    Uint sz, *szp, *hp, **hpp;
+    ErtsPollInfo *piv;
+    Sint i, j = 0, len;
+    int no_pollsets = erts_no_pollsets + ERTS_POLL_USE_FALLBACK;
+    ERTS_CT_ASSERT(ERTS_POLL_USE_FALLBACK == 0 || ERTS_POLL_USE_FALLBACK == 1);
 
-    while (1) {
-	erts_aint_t post_cio_time;
-	int post_active_fds;
+    piv = erts_alloc(ERTS_ALC_T_TMP, sizeof(ErtsPollInfo) * no_pollsets);
 
-	ERTS_CIO_POLL_INFO(pollset.ps, &pi);
+#if ERTS_POLL_USE_FALLBACK
+    erts_poll_info_flbk(get_fallback(), &piv[0]);
+    piv[0].poll_threads = 1;
+    piv[0].active_fds = 0;
+    piv++;
+#endif
 
-	post_cio_time = erts_atomic_read_mb(&erts_check_io_time);
-	post_active_fds = (int) erts_atomic32_read_acqb(&pollset.active_fd.no);
-	if (cio_time == post_cio_time && active_fds == post_active_fds)
-	    break;
-	cio_time = post_cio_time;
-	active_fds = post_active_fds;
+    for (j = 0; j < erts_no_pollsets; j++) {
+        erts_poll_info(pollsetv[j], &piv[j]);
+        piv[j].active_fds = 0;
+        piv[j].poll_threads = erts_no_poll_threads / erts_no_pollsets;
+        if (erts_no_poll_threads % erts_no_pollsets > j)
+            piv[j].poll_threads++;
     }
 
-    memory_size = pi.memory_size;
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    memory_size += sizeof(ErtsDrvEventState) * erts_atomic_read_nob(&drv_ev_state_len);
+    i = 0;
+    erts_mtx_lock(&drv_ev_state.grow_lock);
+    len = erts_atomic_read_nob(&drv_ev_state.len);
+    for (i = 0; i < ERTS_CHECK_IO_DRV_EV_STATE_LOCK_CNT; i++) {
+        erts_mtx_lock(&drv_ev_state.locks[i].lck);
+        for (j = i; j < len; j+=ERTS_CHECK_IO_DRV_EV_STATE_LOCK_CNT) {
+            ErtsDrvEventState *state = get_drv_ev_state(j);
+            int pollsetid = get_pollset_id(j);
+            ASSERT(fd_mtx(j) == &drv_ev_state.locks[i].lck);
+            if (state->flags & ERTS_EV_FLAG_FALLBACK)
+                pollsetid = -1;
+            if (state->driver.select
+                && (state->type == ERTS_EV_TYPE_DRV_SEL)
+                && (is_iotask_active(&state->driver.select->iniotask)
+                    || is_iotask_active(&state->driver.select->outiotask)))
+                piv[pollsetid].active_fds++;
+        }
+        erts_mtx_unlock(&drv_ev_state.locks[i].lck);
+    }
+    erts_mtx_unlock(&drv_ev_state.grow_lock);
+
+    piv[0].memory_size += sizeof(ErtsDrvEventState) * erts_atomic_read_nob(&drv_ev_state.len);
 #else
-    memory_size += safe_hash_table_sz(&drv_ev_state_tab);
+    piv[0].memory_size += safe_hash_table_sz(&drv_ev_state.tab);
     {
-	SafeHashInfo hi;
-	safe_hash_get_info(&hi, &drv_ev_state_tab);
-	memory_size += hi.objs * sizeof(ErtsDrvEventState);
+        SafeHashInfo hi;
+        safe_hash_get_info(&hi, &drv_ev_state.tab);
+        piv[0].memory_size += hi.objs * sizeof(ErtsDrvEventState);
     }
-    erts_spin_lock(&state_prealloc_lock);
-    memory_size += num_state_prealloc * sizeof(ErtsDrvEventState);
-    erts_spin_unlock(&state_prealloc_lock);
+    erts_spin_lock(&drv_ev_state.prealloc_lock);
+    piv[0].memory_size += drv_ev_state.num_prealloc * sizeof(ErtsDrvEventState);
+    erts_spin_unlock(&drv_ev_state.prealloc_lock);
 #endif
 
     hpp = NULL;
     szp = &sz;
     sz = 0;
 
- bld_it:
-    i = 0;
+    piv -= ERTS_POLL_USE_FALLBACK;
 
-    tags[i] = erts_bld_atom(hpp, szp, "name");
-    values[i++] = erts_bld_atom(hpp, szp, "erts_poll");
+ bld_it:
 
-    tags[i] = erts_bld_atom(hpp, szp, "primary");
-    values[i++] = erts_bld_atom(hpp, szp, pi.primary);
+    for (j = no_pollsets-1; j >= 0; j--) {
+        i = 0;
 
-    tags[i] = erts_bld_atom(hpp, szp, "fallback");
-    values[i++] = erts_bld_atom(hpp, szp, pi.fallback ? pi.fallback : "false");
+        tags[i] = erts_bld_atom(hpp, szp, "name");
+        values[i++] = erts_bld_atom(hpp, szp, "erts_poll");
 
-    tags[i] = erts_bld_atom(hpp, szp, "kernel_poll");
-    values[i++] = erts_bld_atom(hpp, szp,
-				pi.kernel_poll ? pi.kernel_poll : "false");
+        tags[i] = erts_bld_atom(hpp, szp, "primary");
+        values[i++] = erts_bld_atom(hpp, szp, piv[j].primary);
 
-    tags[i] = erts_bld_atom(hpp, szp, "memory_size");
-    values[i++] = erts_bld_uint(hpp, szp, memory_size);
+        tags[i] = erts_bld_atom(hpp, szp, "kernel_poll");
+        values[i++] = erts_bld_atom(hpp, szp,
+                                    piv[j].kernel_poll ? piv[j].kernel_poll : "false");
 
-    tags[i] = erts_bld_atom(hpp, szp, "total_poll_set_size");
-    values[i++] = erts_bld_uint(hpp, szp, (Uint) pi.poll_set_size);
+        tags[i] = erts_bld_atom(hpp, szp, "memory_size");
+        values[i++] = erts_bld_uint(hpp, szp, piv[j].memory_size);
 
-    if (pi.fallback) {
-	tags[i] = erts_bld_atom(hpp, szp, "fallback_poll_set_size");
-	values[i++] = erts_bld_uint(hpp, szp, (Uint) pi.fallback_poll_set_size);
-    }
+        tags[i] = erts_bld_atom(hpp, szp, "total_poll_set_size");
+        values[i++] = erts_bld_uint(hpp, szp, piv[j].poll_set_size);
 
-    tags[i] = erts_bld_atom(hpp, szp, "lazy_updates");
-    values[i++] = pi.lazy_updates ? am_true : am_false;
+        tags[i] = erts_bld_atom(hpp, szp, "lazy_updates");
+        values[i++] = piv[j].lazy_updates ? am_true : am_false;
 
-    if (pi.lazy_updates) {
-	tags[i] = erts_bld_atom(hpp, szp, "pending_updates");
-	values[i++] = erts_bld_uint(hpp, szp, (Uint) pi.pending_updates);
-    }
+        tags[i] = erts_bld_atom(hpp, szp, "pending_updates");
+        values[i++] = erts_bld_uint(hpp, szp, piv[j].pending_updates);
 
-    tags[i] = erts_bld_atom(hpp, szp, "batch_updates");
-    values[i++] = pi.batch_updates ? am_true : am_false;
+        tags[i] = erts_bld_atom(hpp, szp, "batch_updates");
+        values[i++] = piv[j].batch_updates ? am_true : am_false;
 
-    tags[i] = erts_bld_atom(hpp, szp, "concurrent_updates");
-    values[i++] = pi.concurrent_updates ? am_true : am_false;
+        tags[i] = erts_bld_atom(hpp, szp, "concurrent_updates");
+        values[i++] = piv[j].concurrent_updates ? am_true : am_false;
 
-    tags[i] = erts_bld_atom(hpp, szp, "max_fds");
-    values[i++] = erts_bld_uint(hpp, szp, (Uint) pi.max_fds);
+        tags[i] = erts_bld_atom(hpp, szp, "fallback");
+        values[i++] = piv[j].is_fallback ? am_true : am_false;
 
-    tags[i] = erts_bld_atom(hpp, szp, "active_fds");
-    values[i++] = erts_bld_uint(hpp, szp, (Uint) active_fds);
+        tags[i] = erts_bld_atom(hpp, szp, "max_fds");
+        values[i++] = erts_bld_uint(hpp, szp, piv[j].max_fds);
 
-#ifdef ERTS_POLL_COUNT_AVOIDED_WAKEUPS
-    tags[i] = erts_bld_atom(hpp, szp, "no_avoided_wakeups");
-    values[i++] = erts_bld_uint(hpp, szp, (Uint) pi.no_avoided_wakeups);
+        tags[i] = erts_bld_atom(hpp, szp, "active_fds");
+        values[i++] = erts_bld_uint(hpp, szp, piv[j].active_fds);
 
-    tags[i] = erts_bld_atom(hpp, szp, "no_avoided_interrupts");
-    values[i++] = erts_bld_uint(hpp, szp, (Uint) pi.no_avoided_interrupts);
+        tags[i] = erts_bld_atom(hpp, szp, "poll_threads");
+        values[i++] = erts_bld_uint(hpp, szp, piv[j].poll_threads);
 
-    tags[i] = erts_bld_atom(hpp, szp, "no_interrupt_timed");
-    values[i++] = erts_bld_uint(hpp, szp, (Uint) pi.no_interrupt_timed);
-#endif
+        res = erts_bld_2tup_list(hpp, szp, i, tags, values);
 
-    res = erts_bld_2tup_list(hpp, szp, i, tags, values);
+        if (!hpp) {
+            *szp += 2;
+        }
+        else {
+            list = CONS(*hpp, res, list);
+            *hpp += 2;
+        }
+    }
 
     if (!hpp) {
 	hp = HAlloc(p, sz);
@@ -2708,386 +2264,442 @@ ERTS_CIO_EXPORT(erts_check_io_info)(void *proc)
 	goto bld_it;
     }
 
-    return res;
+    erts_free(ERTS_ALC_T_TMP, piv);
+
+    return list;
 }
 
 static ERTS_INLINE ErtsPollEvents
-print_events(ErtsPollEvents ev)
+print_events(erts_dsprintf_buf_t *dsbufp, ErtsPollEvents ev)
 {
     int first = 1;
+    if(ev == ERTS_POLL_EV_NONE) {
+        erts_dsprintf(dsbufp, "N/A");
+        return 0;
+    }
     if(ev & ERTS_POLL_EV_IN) {
 	ev &= ~ERTS_POLL_EV_IN;
-	erts_printf("%s%s", first ? "" : "|", "IN");
+	erts_dsprintf(dsbufp, "%s%s", first ? "" : "|", "IN");
 	first = 0;
     }
     if(ev & ERTS_POLL_EV_OUT) {
 	ev &= ~ERTS_POLL_EV_OUT;
-	erts_printf("%s%s", first ? "" : "|", "OUT");
+	erts_dsprintf(dsbufp, "%s%s", first ? "" : "|", "OUT");
 	first = 0;
     }
     /* The following should not appear... */
     if(ev & ERTS_POLL_EV_NVAL) {
-	erts_printf("%s%s", first ? "" : "|", "NVAL");
+	erts_dsprintf(dsbufp, "%s%s", first ? "" : "|", "NVAL");
 	first = 0;
     }
     if(ev & ERTS_POLL_EV_ERR) {
-	erts_printf("%s%s", first ? "" : "|", "ERR");
+	erts_dsprintf(dsbufp, "%s%s", first ? "" : "|", "ERR");
 	first = 0;
     }
     if (ev)
-	erts_printf("%s0x%b32x", first ? "" : "|", (Uint32) ev);
+	erts_dsprintf(dsbufp, "%s0x%b32x", first ? "" : "|", (Uint32) ev);
     return ev;
 }
 
+static ERTS_INLINE void
+print_flags(erts_dsprintf_buf_t *dsbufp, EventStateFlags f)
+{
+    const char* delim = "";
+    if(f & ERTS_EV_FLAG_USED) {
+	erts_dsprintf(dsbufp, "%s","USED");
+	delim = "|";
+    }
+    if(f & ERTS_EV_FLAG_FALLBACK) {
+	erts_dsprintf(dsbufp, "%s%s", delim, "FLBK");
+        delim = "|";
+    }
+}
+
+#ifdef DEBUG_PRINT_MODE
+
+static ERTS_INLINE char *
+drvmode2str(int mode) {
+    switch (mode) {
+    case ERL_DRV_READ|ERL_DRV_USE: return "READ|USE";
+    case ERL_DRV_WRITE|ERL_DRV_USE: return "WRITE|USE";
+    case ERL_DRV_READ|ERL_DRV_WRITE|ERL_DRV_USE: return "READ|WRITE|USE";
+    case ERL_DRV_USE: return "USE";
+    case ERL_DRV_READ: return "READ";
+    case ERL_DRV_WRITE: return "WRITE";
+    case ERL_DRV_READ|ERL_DRV_WRITE: return "READ|WRITE";
+    default: return "UNKNOWN";
+    }
+}
+
+static ERTS_INLINE char *
+nifmode2str(enum ErlNifSelectFlags mode) {
+    switch (mode) {
+    case ERL_NIF_SELECT_READ: return "READ";
+    case ERL_NIF_SELECT_WRITE: return "WRITE";
+    case ERL_NIF_SELECT_STOP: return "STOP";
+    default: return "UNKNOWN";
+    }
+}
+
+#endif
+
 typedef struct {
     int used_fds;
     int num_errors;
     int no_driver_select_structs;
-    int no_driver_event_structs;
+    int no_enif_select_structs;
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
     int internal_fds;
     ErtsPollEvents *epep;
 #endif
 } IterDebugCounters;
 
-static void doit_erts_check_io_debug(void *vstate, void *vcounters)
+static int erts_debug_print_checkio_state(erts_dsprintf_buf_t *dsbufp,
+                                          ErtsDrvEventState *state,
+                                          ErtsPollEvents ep_events,
+                                          int internal)
 {
-    ErtsDrvEventState *state = (ErtsDrvEventState *) vstate;
-    IterDebugCounters *counters = (IterDebugCounters *) vcounters;
-    ErtsPollEvents cio_events = state->events;
-    ErtsSysFdType fd = state->fd;
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    int internal = 0;
-    ErtsPollEvents ep_events = counters->epep[(int) fd];
-#endif
-    int err = 0;
-
 #if defined(HAVE_FSTAT) && !defined(NO_FSTAT_ON_SYS_FD_TYPE)
     struct stat stat_buf;
 #endif
-
-    if (state->driver.select)
-	counters->no_driver_select_structs++;
-#if ERTS_CIO_HAVE_DRV_EVENT
-    if (state->driver.event)
-	counters->no_driver_event_structs++;
-#endif
-
+    ErtsSysFdType fd = state->fd;
+    ErtsPollEvents cio_events = state->events;
+    int err = 0;
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    if (state->events || ep_events) {
-	if (ep_events & ERTS_POLL_EV_NVAL) {
-	    ep_events &= ~ERTS_POLL_EV_NVAL;
-	    internal = 1;
-	    counters->internal_fds++;
-	}
-	else
-	    counters->used_fds++;
-#else
-    if (state->events) {
-	counters->used_fds++;
+    ErtsPollEvents aio_events = state->active_events;
 #endif
-	
-	erts_printf("fd=%d ", (int) fd);
-	
+    erts_dsprintf(dsbufp, "pollset=%d fd=%d ",
+                state->flags & ERTS_EV_FLAG_FALLBACK ? -1 : get_pollset_id(fd), (int) fd);
+
 #if defined(HAVE_FSTAT) && !defined(NO_FSTAT_ON_SYS_FD_TYPE)
-	if (fstat((int) fd, &stat_buf) < 0)
-	    erts_printf("type=unknown ");
-	else {
-	    erts_printf("type=");
+    if (fstat((int) fd, &stat_buf) < 0)
+        erts_dsprintf(dsbufp, "type=unknown ");
+    else {
+        erts_dsprintf(dsbufp, "type=");
 #ifdef S_ISSOCK
-	    if (S_ISSOCK(stat_buf.st_mode))
-		erts_printf("sock ");
-	    else
+        if (S_ISSOCK(stat_buf.st_mode))
+            erts_dsprintf(dsbufp, "sock ");
+        else
 #endif
 #ifdef S_ISFIFO
 	    if (S_ISFIFO(stat_buf.st_mode))
-		erts_printf("fifo ");
+		erts_dsprintf(dsbufp, "fifo ");
 	    else
 #endif
 #ifdef S_ISCHR
-	    if (S_ISCHR(stat_buf.st_mode))
-		erts_printf("chr ");
-	    else
+                if (S_ISCHR(stat_buf.st_mode))
+                    erts_dsprintf(dsbufp, "chr ");
+                else
 #endif
 #ifdef S_ISDIR
-	    if (S_ISDIR(stat_buf.st_mode))
-		erts_printf("dir ");
-	    else
+                    if (S_ISDIR(stat_buf.st_mode))
+                        erts_dsprintf(dsbufp, "dir ");
+                    else
 #endif
 #ifdef S_ISBLK
-	    if (S_ISBLK(stat_buf.st_mode))
-		erts_printf("blk ");
-	    else
+                        if (S_ISBLK(stat_buf.st_mode))
+                            erts_dsprintf(dsbufp, "blk ");
+                        else
 #endif
 #ifdef S_ISREG
-	    if (S_ISREG(stat_buf.st_mode))
-		erts_printf("reg ");
-	    else
+                            if (S_ISREG(stat_buf.st_mode))
+                                erts_dsprintf(dsbufp, "reg ");
+                            else
 #endif
 #ifdef S_ISLNK
-	    if (S_ISLNK(stat_buf.st_mode))
-		erts_printf("lnk ");
-	    else
+                                if (S_ISLNK(stat_buf.st_mode))
+                                    erts_dsprintf(dsbufp, "lnk ");
+                                else
 #endif
 #ifdef S_ISDOOR
-	    if (S_ISDOOR(stat_buf.st_mode))
-		erts_printf("door ");
-	    else
+                                    if (S_ISDOOR(stat_buf.st_mode))
+                                        erts_dsprintf(dsbufp, "door ");
+                                    else
 #endif
 #ifdef S_ISWHT
-	    if (S_ISWHT(stat_buf.st_mode))
-		erts_printf("wht ");
-	    else
+                                        if (S_ISWHT(stat_buf.st_mode))
+                                            erts_dsprintf(dsbufp, "wht ");
+                                        else
 #endif
 #ifdef S_ISXATTR
-	    if (S_ISXATTR(stat_buf.st_mode))
-		erts_printf("xattr ");
-	    else
+                                            if (S_ISXATTR(stat_buf.st_mode))
+                                                erts_dsprintf(dsbufp, "xattr ");
+                                            else
 #endif
-		erts_printf("unknown ");
-	}
+                                                erts_dsprintf(dsbufp, "unknown ");
+    }
 #else
-	erts_printf("type=unknown ");
+    erts_dsprintf(dsbufp, "type=unknown ");
 #endif
 
-	if (state->type == ERTS_EV_TYPE_DRV_SEL) {
-	    erts_printf("driver_select ");
-	    
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-	    if (internal) {
-		erts_printf("internal ");
-		err = 1;		    
-	    }
-	    
-	    if (cio_events == ep_events) {
-		erts_printf("ev=");
-		if (print_events(cio_events) != 0)
-		    err = 1;
-	    }
-	    else {
-		err = 1;
-		erts_printf("cio_ev=");
-		print_events(cio_events);
-		erts_printf(" ep_ev=");
-		print_events(ep_events);
-	    }
-#else
-	    if (print_events(cio_events) != 0)
-		err = 1;
-#endif
-	    erts_printf(" ");
-	    if (cio_events & ERTS_POLL_EV_IN) {
-		Eterm id = state->driver.select->inport;
-		if (is_nil(id)) {
-		    erts_printf("inport=none inname=none indrv=none ");
-		    err = 1;
-		}
-		else {
-		    ErtsPortNames *pnp = erts_get_port_names(id, ERTS_INVALID_ERL_DRV_PORT);
-		    erts_printf(" inport=%T inname=%s indrv=%s ",
-				id,
-				pnp->name ? pnp->name : "unknown",
-				(pnp->driver_name
-				 ? pnp->driver_name
-				 : "unknown"));
-		    erts_free_port_names(pnp);
-		}
-	    }
-	    if (cio_events & ERTS_POLL_EV_OUT) {
-		Eterm id = state->driver.select->outport;
-		if (is_nil(id)) {
-		    erts_printf("outport=none outname=none outdrv=none ");
-		    err = 1;
-		}
-		else {
-		    ErtsPortNames *pnp = erts_get_port_names(id, ERTS_INVALID_ERL_DRV_PORT);
-		    erts_printf(" outport=%T outname=%s outdrv=%s ",
-				id,
-				pnp->name ? pnp->name : "unknown",
-				(pnp->driver_name
-				 ? pnp->driver_name
-				 : "unknown"));
-		    erts_free_port_names(pnp);
-		}
-	    }
-	}
-        else if (state->type == ERTS_EV_TYPE_NIF) {
-            ErtsResource* r;
-            erts_printf("enif_select ");
+    if (state->type == ERTS_EV_TYPE_DRV_SEL) {
+        erts_dsprintf(dsbufp, "driver_select ");
 
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-            if (internal) {
-                erts_printf("internal ");
-                err = 1;
-            }
-
+        if (internal) {
+            erts_dsprintf(dsbufp, "internal ");
+            err = 1;
+        }
+        if (aio_events == cio_events) {
             if (cio_events == ep_events) {
-                erts_printf("ev=");
-                if (print_events(cio_events) != 0)
+                erts_dsprintf(dsbufp, "ev=");
+                if (print_events(dsbufp, cio_events) != 0)
                     err = 1;
             }
             else {
+                ErtsPollEvents ev = cio_events;
+                if (ev != ep_events && ep_events != ERTS_POLL_EV_NONE)
+                    err = 1;
+                erts_dsprintf(dsbufp, "cio_ev=");
+                print_events(dsbufp, cio_events);
+                erts_dsprintf(dsbufp, " ep_ev=");
+                print_events(dsbufp, ep_events);
+            }
+        } else {
+            erts_dsprintf(dsbufp, "cio_ev=");
+            print_events(dsbufp, cio_events);
+            erts_dsprintf(dsbufp, " aio_ev=");
+            print_events(dsbufp, aio_events);
+            if ((aio_events != ep_events && ep_events != ERTS_POLL_EV_NONE) ||
+                (aio_events != 0 && ep_events == ERTS_POLL_EV_NONE)) {
+                erts_dsprintf(dsbufp, " ep_ev=");
+                print_events(dsbufp, ep_events);
                 err = 1;
-                erts_printf("cio_ev=");
-                print_events(cio_events);
-                erts_printf(" ep_ev=");
-                print_events(ep_events);
             }
+        }
 #else
-            if (print_events(cio_events) != 0)
+        if (print_events(dsbufp, cio_events) != 0)
+            err = 1;
+#endif
+        erts_dsprintf(dsbufp, " ");
+        if (cio_events & ERTS_POLL_EV_IN) {
+            Eterm id = state->driver.select->inport;
+            if (is_nil(id)) {
+                erts_dsprintf(dsbufp, "inport=none inname=none indrv=none ");
                 err = 1;
-#endif
-            erts_printf(" inpid=%T dd_cnt=%b32d", state->driver.nif->in.pid,
-                        state->driver.nif->in.ddeselect_cnt);
-            erts_printf(" outpid=%T dd_cnt=%b32d", state->driver.nif->out.pid,
-                        state->driver.nif->out.ddeselect_cnt);
-            r = state->driver.stop.resource;
-            erts_printf(" resource=%p(%T:%T)", r, r->type->module, r->type->name);
+            }
+            else {
+                ErtsPortNames *pnp = erts_get_port_names(id, ERTS_INVALID_ERL_DRV_PORT);
+                erts_dsprintf(dsbufp, " inport=%T inname=%s indrv=%s ",
+                            id,
+                            pnp->name ? pnp->name : "unknown",
+                            (pnp->driver_name
+                             ? pnp->driver_name
+                             : "unknown"));
+                erts_free_port_names(pnp);
+            }
         }
-#if ERTS_CIO_HAVE_DRV_EVENT
-	else if (state->type == ERTS_EV_TYPE_DRV_EV) {
-	    Eterm id;
-	    erts_printf("driver_event ");
+        if (cio_events & ERTS_POLL_EV_OUT) {
+            Eterm id = state->driver.select->outport;
+            if (is_nil(id)) {
+                erts_dsprintf(dsbufp, "outport=none outname=none outdrv=none ");
+                err = 1;
+            }
+            else {
+                ErtsPortNames *pnp = erts_get_port_names(id, ERTS_INVALID_ERL_DRV_PORT);
+                erts_dsprintf(dsbufp, " outport=%T outname=%s outdrv=%s ",
+                            id,
+                            pnp->name ? pnp->name : "unknown",
+                            (pnp->driver_name
+                             ? pnp->driver_name
+                             : "unknown"));
+                erts_free_port_names(pnp);
+            }
+        }
+    }
+    else if (state->type == ERTS_EV_TYPE_NIF) {
+        ErtsResource* r;
+        erts_dsprintf(dsbufp, "enif_select ");
+
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-	    if (internal) {
-		erts_printf("internal ");
-		err = 1;		    
-	    }
-	    if (cio_events == ep_events) {
-		erts_printf("ev=0x%b32x", (Uint32) cio_events);
-	    }
-	    else {
-		err = 1;
-		erts_printf("cio_ev=0x%b32x", (Uint32) cio_events);
-		erts_printf(" ep_ev=0x%b32x", (Uint32) ep_events);
-	    }
+        if (internal) {
+            erts_dsprintf(dsbufp, "internal ");
+            err = 1;
+        }
+
+        if (cio_events == ep_events) {
+            erts_dsprintf(dsbufp, "ev=");
+            if (print_events(dsbufp, cio_events) != 0)
+                err = 1;
+        }
+        else {
+            err = 1;
+            erts_dsprintf(dsbufp, "cio_ev=");
+            print_events(dsbufp, cio_events);
+            erts_dsprintf(dsbufp, " ep_ev=");
+            print_events(dsbufp, ep_events);
+        }
 #else
-	    erts_printf("ev=0x%b32x", (Uint32) cio_events);
+        if (print_events(dsbufp, cio_events) != 0)
+            err = 1;
 #endif
-	    id = state->driver.event->port;
-	    if (is_nil(id)) {
-		erts_printf(" port=none name=none drv=none ");
-		err = 1;
-	    }
-	    else {
-		ErtsPortNames *pnp = erts_get_port_names(id, ERTS_INVALID_ERL_DRV_PORT);
-		erts_printf(" port=%T name=%s drv=%s ",
-			    id,
-			    pnp->name ? pnp->name : "unknown",
-			    (pnp->driver_name
-			     ? pnp->driver_name
-			     : "unknown"));
-		erts_free_port_names(pnp);
-	    }
-	}
+        erts_dsprintf(dsbufp, " inpid=%T", state->driver.nif->in.pid);
+        erts_dsprintf(dsbufp, " outpid=%T", state->driver.nif->out.pid);
+        r = state->driver.stop.resource;
+        erts_dsprintf(dsbufp, " resource=%p(%T:%T)", r, r->type->module, r->type->name);
+    }
+#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
+    else if (internal) {
+        erts_dsprintf(dsbufp, "internal ");
+        if (cio_events) {
+            err = 1;
+            erts_dsprintf(dsbufp, "cio_ev=");
+            print_events(dsbufp, cio_events);
+        }
+        if (ep_events) {
+            erts_dsprintf(dsbufp, "ep_ev=");
+            print_events(dsbufp, ep_events);
+        }
+    }
 #endif
+    else {
+        err = 1;
+        erts_dsprintf(dsbufp, "control_type=%d ", (int)state->type);
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-	else if (internal) {
-	    erts_printf("internal ");
-	    if (cio_events) {
-		err = 1;
-		erts_printf("cio_ev=");
-		print_events(cio_events);
-	    }
-	    if (ep_events) {
-		erts_printf("ep_ev=");
-		print_events(ep_events);
-	    }
-	}
+        if (cio_events == ep_events) {
+            erts_dsprintf(dsbufp, "ev=");
+            print_events(dsbufp, cio_events);
+        }
+        else {
+            erts_dsprintf(dsbufp, "cio_ev="); print_events(dsbufp, cio_events);
+            erts_dsprintf(dsbufp, " ep_ev="); print_events(dsbufp, ep_events);
+        }
+#else
+        erts_dsprintf(dsbufp, "ev=0x%b32x", (Uint32) cio_events);
 #endif
-	else {
-	    err = 1;
-	    erts_printf("control_type=%d ", (int)state->type);
+    }
+
+    erts_dsprintf(dsbufp, " flags="); print_flags(dsbufp, state->flags);
+    if (err) {
+        erts_dsprintf(dsbufp, " ERROR");
+    }
+    erts_dsprintf(dsbufp, "\r\n");
+    return err;
+}
+
+static void doit_erts_check_io_debug(void *vstate, void *vcounters,
+                                     erts_dsprintf_buf_t *dsbufp)
+{
+    ErtsDrvEventState *state = (ErtsDrvEventState *) vstate;
+    IterDebugCounters *counters = (IterDebugCounters *) vcounters;
+    int internal = 0;
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-	    if (cio_events == ep_events) {
-                erts_printf("ev=");
-                print_events(cio_events);
-	    }
-	    else {
-		erts_printf("cio_ev="); print_events(cio_events);
-		erts_printf(" ep_ev="); print_events(ep_events);
-	    }
+    ErtsSysFdType fd = state->fd;
+    ErtsPollEvents ep_events = counters->epep[(int) fd];
 #else
-	    erts_printf("ev=0x%b32x", (Uint32) cio_events);
+    ErtsPollEvents ep_events = ERTS_POLL_EV_NONE;
 #endif
+
+    if (state->driver.select) {
+	counters->no_driver_select_structs++;
+        ASSERT(state->events || (ep_events != 0 && ep_events != ERTS_POLL_EV_NONE));
+    }
+    if (state->driver.nif) {
+        counters->no_enif_select_structs++;
+        ASSERT(state->events || (ep_events != 0 && ep_events != ERTS_POLL_EV_NONE));
+    }
+
+#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
+    if (state->events || (ep_events != 0 && ep_events != ERTS_POLL_EV_NONE)) {
+	if (ep_events & ERTS_POLL_EV_NVAL) {
+	    ep_events &= ~ERTS_POLL_EV_NVAL;
+	    internal = 1;
+	    counters->internal_fds++;
 	}
-	
-	if (err) {
+	else
+	    counters->used_fds++;
+#else
+    if (state->events) {
+	counters->used_fds++;
+#endif
+	if (erts_debug_print_checkio_state(dsbufp, state, ep_events, internal)) {
 	    counters->num_errors++;
-	    erts_printf(" ERROR");
 	}
-	erts_printf("\n");
     }
 }
-    
+
+/* ciodpi can be NULL when called from etp-commands */
 int
-ERTS_CIO_EXPORT(erts_check_io_debug)(ErtsCheckIoDebugInfo *ciodip)
+erts_check_io_debug(ErtsCheckIoDebugInfo *ciodip)
 {
+    erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    int fd, len;
+    int fd, len, i;
 #endif
-    IterDebugCounters counters;
+    IterDebugCounters counters = {0};
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
     ErtsDrvEventState null_des;
 
     null_des.driver.select = NULL;
-#if ERTS_CIO_HAVE_DRV_EVENT
-    null_des.driver.event = NULL;
-#endif
+    null_des.driver.nif = NULL;
     null_des.driver.stop.drv_ptr = NULL;
     null_des.events = 0;
-    null_des.remove_cnt = 0;
     null_des.type = ERTS_EV_TYPE_NONE;
+    null_des.flags = 0;
+
+    counters.epep = erts_alloc(ERTS_ALC_T_TMP,
+                               sizeof(ErtsPollEvents)*drv_ev_state.max_fds);
 #endif
 
-    erts_printf("--- fds in pollset --------------------------------------\n");
 
 #if defined(ERTS_ENABLE_LOCK_CHECK)
     erts_lc_check_exact(NULL, 0); /* No locks should be locked */
 #endif
 
-    erts_thr_progress_block(); /* stop the world to avoid messy locking */
+    if (ciodip)
+        erts_thr_progress_block(); /* stop the world to avoid messy locking */
 
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    counters.epep = erts_alloc(ERTS_ALC_T_TMP, sizeof(ErtsPollEvents)*max_fds);
-    ERTS_POLL_EXPORT(erts_poll_get_selected_events)(pollset.ps, counters.epep, max_fds);
-    counters.internal_fds = 0;
-#endif
-    counters.used_fds = 0;
-    counters.num_errors = 0;
-    counters.no_driver_select_structs = 0;
-    counters.no_driver_event_structs = 0;
+    len = erts_atomic_read_nob(&drv_ev_state.len);
 
-#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    len = erts_atomic_read_nob(&drv_ev_state_len);
+#if ERTS_POLL_USE_FALLBACK
+    erts_dsprintf(dsbufp, "--- fds in flbk pollset ---------------------------------\n");
+    erts_poll_get_selected_events_flbk(get_fallback(), counters.epep,
+                                       drv_ev_state.max_fds);
     for (fd = 0; fd < len; fd++) {
-	doit_erts_check_io_debug((void *) &drv_ev_state[fd], (void *) &counters);
+        if (drv_ev_state.v[fd].flags & ERTS_EV_FLAG_FALLBACK)
+            doit_erts_check_io_debug(&drv_ev_state.v[fd], &counters, dsbufp);
+    }
+#endif
+    erts_dsprintf(dsbufp, "--- fds in pollset --------------------------------------\n");
+
+    for (i = 0; i < erts_no_pollsets; i++) {
+        erts_poll_get_selected_events(pollsetv[i],
+                                      counters.epep,
+                                      drv_ev_state.max_fds);
+        for (fd = 0; fd < len; fd++) {
+            if (!(drv_ev_state.v[fd].flags & ERTS_EV_FLAG_FALLBACK)
+                && get_pollset_id(fd) == i)
+                doit_erts_check_io_debug(&drv_ev_state.v[fd], &counters, dsbufp);
+        }
     }
-    for ( ; fd < max_fds; fd++) {
-	null_des.fd = fd;
-	doit_erts_check_io_debug((void *) &null_des, (void *) &counters);
+    for (fd = len ; fd < drv_ev_state.max_fds; fd++) {
+        null_des.fd = fd;
+        doit_erts_check_io_debug(&null_des, &counters, dsbufp);
     }
 #else
-    safe_hash_for_each(&drv_ev_state_tab, &doit_erts_check_io_debug, (void *) &counters);
+    safe_hash_for_each(&drv_ev_state.tab, &doit_erts_check_io_debug,
+                       &counters, dsbufp);
 #endif
 
-    erts_thr_progress_unblock();
+    if (ciodip)
+        erts_thr_progress_unblock();
 
-    ciodip->no_used_fds = counters.used_fds;
-    ciodip->no_driver_select_structs = counters.no_driver_select_structs;
-    ciodip->no_driver_event_structs = counters.no_driver_event_structs;
+    if (ciodip) {
+        ciodip->no_used_fds = counters.used_fds;
+        ciodip->no_driver_select_structs = counters.no_driver_select_structs;
+        ciodip->no_enif_select_structs = counters.no_enif_select_structs;
+    }
 
-    erts_printf("\n");
-    erts_printf("used fds=%d\n", counters.used_fds);
-    erts_printf("Number of driver_select() structures=%d\n", counters.no_driver_select_structs);
-#if ERTS_CIO_HAVE_DRV_EVENT
-    erts_printf("Number of driver_event() structures=%d\n", counters.no_driver_event_structs);
-#endif
+    erts_dsprintf(dsbufp, "\n");
+    erts_dsprintf(dsbufp, "used fds=%d\n", counters.used_fds);
+    erts_dsprintf(dsbufp, "Number of driver_select() structures=%d\n", counters.no_driver_select_structs);
+    erts_dsprintf(dsbufp, "Number of enif_select() structures=%d\n", counters.no_enif_select_structs);
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    erts_printf("internal fds=%d\n", counters.internal_fds);
+    erts_dsprintf(dsbufp, "internal fds=%d\n", counters.internal_fds);
 #endif
-    erts_printf("---------------------------------------------------------\n");
-    fflush(stdout);
+    erts_dsprintf(dsbufp, "---------------------------------------------------------\n");
+    erts_send_error_to_logger_nogl(dsbufp);
 #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
     erts_free(ERTS_ALC_T_TMP, (void *) counters.epep);
 #endif
@@ -3096,11 +2708,19 @@ ERTS_CIO_EXPORT(erts_check_io_debug)(ErtsCheckIoDebugInfo *ciodip)
 }
 
 #ifdef ERTS_ENABLE_LOCK_COUNT
-void ERTS_CIO_EXPORT(erts_lcnt_update_cio_locks)(int enable) {
+void erts_lcnt_update_cio_locks(int enable) {
+    int i;
 #ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS
-    erts_lcnt_enable_hash_lock_count(&drv_ev_state_tab, ERTS_LOCK_FLAGS_CATEGORY_IO, enable);
+    erts_lcnt_enable_hash_lock_count(&drv_ev_state.tab, ERTS_LOCK_FLAGS_CATEGORY_IO, enable);
 #else
     (void)enable;
 #endif
+
+#if ERTS_POLL_USE_FALLBACK
+    erts_lcnt_enable_pollset_lock_count_flbk(get_fallback(), enable);
+#endif
+
+    for (i = 0; i < erts_no_pollsets; i++)
+        erts_lcnt_enable_pollset_lock_count(pollsetv[i], enable);
 }
 #endif /* ERTS_ENABLE_LOCK_COUNT */
diff --git a/erts/emulator/sys/common/erl_check_io.h b/erts/emulator/sys/common/erl_check_io.h
index 777942a473..443ef1264c 100644
--- a/erts/emulator/sys/common/erl_check_io.h
+++ b/erts/emulator/sys/common/erl_check_io.h
@@ -18,10 +18,11 @@
  * %CopyrightEnd%
  */
 
-/*
- * Description:	Check I/O
+/**
+ * @description Check I/O, a cross platform IO polling framework for ERTS
  *
- * Author: 	Rickard Green
+ * @author Rickard Green
+ * @author Lukas Larsson
  */
 
 #ifndef ERL_CHECK_IO_H__
@@ -30,72 +31,79 @@
 #include "sys.h"
 #include "erl_sys_driver.h"
 
-#ifdef ERTS_ENABLE_KERNEL_POLL
-
-int driver_select_kp(ErlDrvPort, ErlDrvEvent, int, int);
-int driver_select_nkp(ErlDrvPort, ErlDrvEvent, int, int);
-int enif_select_kp(ErlNifEnv*, ErlNifEvent, enum ErlNifSelectFlags, void*, const ErlNifPid*, Eterm);
-int enif_select_nkp(ErlNifEnv*, ErlNifEvent, enum ErlNifSelectFlags, void*, const ErlNifPid*, Eterm);
-int driver_event_kp(ErlDrvPort, ErlDrvEvent, ErlDrvEventData);
-int driver_event_nkp(ErlDrvPort, ErlDrvEvent, ErlDrvEventData);
-Uint erts_check_io_size_kp(void);
-Uint erts_check_io_size_nkp(void);
-Eterm erts_check_io_info_kp(void *);
-Eterm erts_check_io_info_nkp(void *);
-int erts_check_io_max_files_kp(void);
-int erts_check_io_max_files_nkp(void);
-void erts_check_io_interrupt_kp(int);
-void erts_check_io_interrupt_nkp(int);
-void erts_check_io_interrupt_timed_kp(int, ErtsMonotonicTime);
-void erts_check_io_interrupt_timed_nkp(int, ErtsMonotonicTime);
-void erts_check_io_kp(int);
-void erts_check_io_nkp(int);
-void erts_init_check_io_kp(void);
-void erts_init_check_io_nkp(void);
-int erts_check_io_debug_kp(ErtsCheckIoDebugInfo *);
-int erts_check_io_debug_nkp(ErtsCheckIoDebugInfo *);
-
-#ifdef ERTS_ENABLE_LOCK_COUNT
-void erts_lcnt_update_cio_locks_kp(int enable);
-void erts_lcnt_update_cio_locks_nkp(int enable);
-#endif
-
-#else /* !ERTS_ENABLE_KERNEL_POLL */
+/** @brief a structure that is used by each polling thread */
+struct erts_poll_thread;
 
+/**
+ * Get the memory size of the check io framework
+ */
 Uint erts_check_io_size(void);
-Eterm erts_check_io_info(void *);
+/**
+ * Returns an Eterm with information about all the pollsets active at the
+ * moment.
+ *
+ * @param proc the Process* to allocate the result on. It is passed as
+ *  void * because of header include problems.
+ */
+Eterm erts_check_io_info(void *proc);
+/**
+ * Should be called when a port IO task has been executed in order to re-enable
+ * or clear the information about the fd.
+ *
+ * @param type The type of event that has been completed.
+ * @param handle The port task handle of the event.
+ * @param reset A function pointer to be called when the port task handle
+ *  should be reset.
+ */
+void erts_io_notify_port_task_executed(ErtsPortTaskType type,
+                                       ErtsPortTaskHandle *handle,
+                                       void (*reset)(ErtsPortTaskHandle *));
+/**
+ * Returns the maximum number of fds that the check io framework can handle.
+ */
 int erts_check_io_max_files(void);
-void erts_check_io_interrupt(int);
-void erts_check_io_interrupt_timed(int, ErtsMonotonicTime);
-void erts_check_io(int);
-void erts_init_check_io(void);
-
+/**
+ * Called by any thread that should check for new IO events. This function will
+ * not return unless erts_check_io_interrupt(pt, 1) is called by another thread.
+ *
+ * @param pt the poll thread structure to use.
+ */
+void erts_check_io(struct erts_poll_thread *pt);
+/**
+ * Initialize the check io framework. This function will parse the arguments
+ * and delete any entries that it is interested in.
+ *
+ * @param argc the number of arguments
+ * @param argv an array with the arguments
+ */
+void erts_init_check_io(int *argc, char **argv);
+/**
+ * Interrupt the poll thread so that it can execute other code.
+ *
+ * Should be called with set = 0 by the waiting thread before calling
+ * erts_check_io.
+ *
+ * @param pt the poll thread to wake
+ * @param set whether to set or clear the interrupt flag
+ */
+void erts_check_io_interrupt(struct erts_poll_thread *pt, int set);
+/**
+ * Create a new poll thread structure that is associated with the number no.
+ * It is the callers responsibility that no is unique.
+ */
+struct erts_poll_thread* erts_create_pollset_thread(int no);
 #ifdef ERTS_ENABLE_LOCK_COUNT
+/**
+ * Toggle lock counting on all check io locks
+ */
 void erts_lcnt_update_cio_locks(int enable);
 #endif
 
-#endif
-
-extern erts_atomic_t erts_check_io_time;
-
 typedef struct {
     ErtsPortTaskHandle task;
-    erts_atomic_t executed_time;
+    ErtsSysFdType fd;
 } ErtsIoTask;
 
-ERTS_GLB_INLINE void erts_io_notify_port_task_executed(ErtsPortTaskHandle *pthp);
-
-#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-
-ERTS_GLB_INLINE void
-erts_io_notify_port_task_executed(ErtsPortTaskHandle *pthp)
-{
-    ErtsIoTask *itp = (ErtsIoTask *) (((char *) pthp) - offsetof(ErtsIoTask, task));
-    erts_aint_t ci_time = erts_atomic_read_acqb(&erts_check_io_time);
-    erts_atomic_set_relb(&itp->executed_time, ci_time);
-}
-
-#endif
 
 #endif /*  ERL_CHECK_IO_H__ */
 
@@ -103,6 +111,16 @@ erts_io_notify_port_task_executed(ErtsPortTaskHandle *pthp)
 #define ERL_CHECK_IO_INTERNAL__
 #endif
 
+#define ERTS_CHECK_IO_DRV_EV_STATE_LOCK_CNT 128
+
+/* Controls how many pollsets to allocate. Fd's are hashed into
+   each pollset based on the FD. When doing non-concurrent updates
+   there will be one pollset per thread.
+*/
+extern int erts_no_pollsets;
+extern int erts_no_poll_threads;
+
+
 #ifndef ERL_CHECK_IO_INTERNAL__
 #define ERL_CHECK_IO_INTERNAL__
 #include "erl_poll.h"
@@ -115,24 +133,8 @@ erts_io_notify_port_task_executed(ErtsPortTaskHandle *pthp)
  */
 #  define ERTS_CIO_DEFER_ACTIVE_EVENTS 1
 #else
-#  define ERTS_CIO_DEFER_ACTIVE_EVENTS 0
-#endif
-
-/*
- * ErtsDrvEventDataState is used by driver_event() which is almost never
- * used. We allocate ErtsDrvEventDataState separate since we dont wan't
- * the size of ErtsDrvEventState to increase due to driver_event()
- * information.
- */
-typedef struct {
-    Eterm port;
-    ErlDrvEventData data;
-    ErtsPollEvents removed_events;
-#if ERTS_CIO_DEFER_ACTIVE_EVENTS
-    ErtsPollEvents deferred_events;
+#  define ERTS_CIO_DEFER_ACTIVE_EVENTS 1
 #endif
-    ErtsIoTask iotask;
-} ErtsDrvEventDataState;
 
 typedef struct {
     Eterm inport;
diff --git a/erts/emulator/sys/common/erl_poll.c b/erts/emulator/sys/common/erl_poll.c
index 7d26839b0f..30a595c17a 100644
--- a/erts/emulator/sys/common/erl_poll.c
+++ b/erts/emulator/sys/common/erl_poll.c
@@ -18,9 +18,8 @@
  * %CopyrightEnd%
  */
 
-/*
- * Description:	Poll interface suitable for ERTS with or without
- *              SMP support.
+/**
+ * @description Poll interface suitable for ERTS
  *
  *		The interface is currently implemented using:
  *		- select
@@ -29,12 +28,36 @@
  *              - epoll with poll or select as fallback
  *              - kqueue with poll or select as fallback
  *
- *		Some time in the future it will also be
- *		implemented using Solaris ports.
  *
+ * @author Rickard Green
+ * @author Lukas Larsson
+ *
+ * There are two major different implementations off IO polling in this
+ * file. The concurrent and non-concurrent implementations.
+ * When available epoll/kqueue are used to implement the concurrent
+ * versions. poll, select and dev/poll use non-concurrent updates.
+ *
+ * Concurrent version:
+ *   In the concurrent version erts_poll_control directly modifies
+ *   the kernel pollset without waking the thread that is waiting
+ *   on events. Also the ErtsPollResFd type is directly mapped to
+ *   the native event type, so no extra copying is needed. Note that
+ *   as no locking at all is done, fds can be triggered that have been
+ *   removed from the pollset. The check_io layer has to deal with this.
+ *
+ * Non-concurrent version:
+ *   In the non-concurrent version, the pollset has an internal representation
+ *   of the pollset that is updated by erts_poll_control. When an fd is updated,
+ *   its number is placed in the update request queue and then the waiting thread
+ *   is woken in order to see the change. The internal data in the pollset is
+ *   protected by a mutex that has to be taken by both the modifying and waiting
+ *   thread at different times.
  *
+ *   The non-concurrent pollset cannot have fd's closed in it while a thread is
+ *   waiting on that fd. In order to fix this, when an ERTS_POLL_OP_DEL command
+ *   is issued, the fd is marked as closing and the waiting thread is woken. The
+ *   fd is then returned in the waiting threads results as ERTS_POLL_EV_NONE.
  *
- * Author: 	Rickard Green
  */
 
 #ifdef HAVE_CONFIG_H
@@ -62,6 +85,8 @@
 #  ifdef SYS_SELECT_H
 #    include <sys/select.h>
 #  endif
+#elif defined(_DARWIN_UNLIMITED_SELECT)
+#  undef _DARWIN_UNLIMITED_SELECT
 #endif
 #ifdef NO_SYSCONF
 #  if ERTS_POLL_USE_SELECT
@@ -83,20 +108,35 @@
 #error "Missing implementation of erts_poll()"
 #endif
 
-#if defined(ERTS_KERNEL_POLL_VERSION) && !ERTS_POLL_USE_KERNEL_POLL
-#error "Missing kernel poll implementation of erts_poll()"
-#endif
+#if 0
+#define ERTS_POLL_DEBUG_PRINT 1
+
+#define DEBUG_PRINT(FMT, PS, ...)                                       \
+    do {                                                                \
+        int myerrno = errno;                                            \
+        erts_printf("%d: " FMT "\r\n", (PS)->id, ##__VA_ARGS__);        \
+        errno = myerrno;                                                \
+    } while(0)
 
-#if defined(ERTS_NO_KERNEL_POLL_VERSION) && ERTS_POLL_USE_KERNEL_POLL
-#error "Kernel poll used when it shouldn't be used"
+/* Define to print info about modifications done to each fd */
+#define DEBUG_PRINT_FD(FMT, PS, FD, ...) DEBUG_PRINT("%d: " FMT, PS, FD, ##__VA_ARGS__)
+/* Define to print entry and exit from erts_poll_wait (can be very spammy) */
+//#define DEBUG_PRINT_WAIT(FMT, PS, ...) DEBUG_PRINT(FMT, PS, ##__VA_ARGS__)
+
+#else
+#define ERTS_POLL_DEBUG_PRINT 0
+#define DEBUG_PRINT(...)
 #endif
 
-#if 0
-#define ERTS_POLL_DEBUG_PRINT
+#ifndef DEBUG_PRINT_FD
+#define DEBUG_PRINT_FD(...)
+#endif
+#ifndef DEBUG_PRINT_WAIT
+#define DEBUG_PRINT_WAIT(...)
 #endif
 
 
-#ifdef _DARWIN_UNLIMITED_SELECT
+#if defined(_DARWIN_UNLIMITED_SELECT) && ERTS_POLL_USE_SELECT
 typedef struct {
     size_t sz;
     fd_set* ptr;
@@ -142,25 +182,13 @@ int ERTS_SELECT(int nfds, ERTS_fd_set *readfds, ERTS_fd_set *writefds,
 #  define ERTS_SELECT	select
 #endif
 
-#define ERTS_POLL_USE_BATCH_UPDATE_POLLSET (ERTS_POLL_USE_DEVPOLL \
-					    || ERTS_POLL_USE_KQUEUE)
+#define ERTS_POLL_IS_FALLBACK (ERTS_POLL_USE_POLL || ERTS_POLL_USE_SELECT) && ERTS_ENABLE_KERNEL_POLL
 
-#define ERTS_POLL_USE_CONCURRENT_UPDATE ERTS_POLL_USE_EPOLL
+#define ERTS_POLL_USE_CONCURRENT_UPDATE (ERTS_POLL_USE_EPOLL || ERTS_POLL_USE_KQUEUE)
 
-#define ERTS_POLL_COALESCE_KP_RES (ERTS_POLL_USE_KQUEUE || ERTS_POLL_USE_EPOLL)
-
-#define ERTS_POLLSET_LOCK(PS) \
-  erts_mtx_lock(&(PS)->mtx)
-#define ERTS_POLLSET_UNLOCK(PS) \
-  erts_mtx_unlock(&(PS)->mtx)
-
-#define ERTS_POLLSET_SET_POLLED_CHK(PS) \
-  ((int) erts_atomic32_xchg_nob(&(PS)->polled, (erts_aint32_t) 1))
-#define ERTS_POLLSET_UNSET_POLLED(PS) \
-  erts_atomic32_set_nob(&(PS)->polled, (erts_aint32_t) 0)
-#define ERTS_POLLSET_IS_POLLED(PS) \
-  ((int) erts_atomic32_read_nob(&(PS)->polled))
+#define ERTS_POLL_USE_WAKEUP_PIPE (!ERTS_POLL_USE_CONCURRENT_UPDATE)
 
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
 
 #define ERTS_POLLSET_SET_HAVE_UPDATE_REQUESTS(PS) \
   erts_atomic32_set_nob(&(PS)->have_update_requests, (erts_aint32_t) 1)
@@ -169,17 +197,28 @@ int ERTS_SELECT(int nfds, ERTS_fd_set *readfds, ERTS_fd_set *writefds,
 #define ERTS_POLLSET_HAVE_UPDATE_REQUESTS(PS) \
   ((int) erts_atomic32_read_nob(&(PS)->have_update_requests))
 
-#if ERTS_POLL_USE_FALLBACK
-#  if ERTS_POLL_USE_POLL
-#    define ERTS_POLL_NEED_FALLBACK(PS) ((PS)->no_poll_fds > 1)
-#  elif ERTS_POLL_USE_SELECT
-#    define ERTS_POLL_NEED_FALLBACK(PS) ((PS)->no_select_fds > 1)
-#  endif
+#define ERTS_POLLSET_LOCK(PS) \
+  erts_mtx_lock(&(PS)->mtx)
+#define ERTS_POLLSET_UNLOCK(PS) \
+  erts_mtx_unlock(&(PS)->mtx)
+
+#else
+
+#define ERTS_POLLSET_SET_HAVE_UPDATE_REQUESTS(PS)
+#define ERTS_POLLSET_UNSET_HAVE_UPDATE_REQUESTS(PS)
+#define ERTS_POLLSET_HAVE_UPDATE_REQUESTS(PS) 0
+
+#define ERTS_POLLSET_LOCK(PS)
+#define ERTS_POLLSET_UNLOCK(PS)
+
 #endif
+
 /*
  * --- Data types ------------------------------------------------------------
  */
 
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
+
 #define ERTS_POLLSET_UPDATE_REQ_BLOCK_SIZE 128
 
 typedef struct ErtsPollSetUpdateRequestsBlock_ ErtsPollSetUpdateRequestsBlock;
@@ -189,237 +228,200 @@ struct ErtsPollSetUpdateRequestsBlock_ {
     int fds[ERTS_POLLSET_UPDATE_REQ_BLOCK_SIZE];
 };
 
-
-
 #  define ERTS_POLL_FD_FLG_INURQ	(((unsigned short) 1) << 0)
-#if ERTS_POLL_USE_FALLBACK
-#  define ERTS_POLL_FD_FLG_INFLBCK	(((unsigned short) 1) << 1)
-#  define ERTS_POLL_FD_FLG_USEFLBCK	(((unsigned short) 1) << 2)
-#endif
-#  define ERTS_POLL_FD_FLG_RST		(((unsigned short) 1) << 3)
+#  define ERTS_POLL_FD_FLG_RST		(((unsigned short) 1) << 1)
+
 typedef struct {
 #if ERTS_POLL_USE_POLL
     int pix;
 #endif
+
     ErtsPollEvents used_events;
     ErtsPollEvents events;
-#if ERTS_POLL_COALESCE_KP_RES
-    unsigned short res_ev_ix;
-#endif
     unsigned short flags;
 
 } ErtsFdStatus;
 
-
-#if ERTS_POLL_COALESCE_KP_RES
-/* res_ev_ix max value */
-#define ERTS_POLL_MAX_RES ((1 << sizeof(unsigned short)*8) - 1)
 #endif
 
-#if ERTS_POLL_USE_KQUEUE
-
-#define ERTS_POLL_KQ_OP_HANDLED			1
-#define ERTS_POLL_KQ_OP_DEL_R			2
-#define ERTS_POLL_KQ_OP_DEL_W			3
-#define ERTS_POLL_KQ_OP_ADD_R			4
-#define ERTS_POLL_KQ_OP_ADD_W			5
-#define ERTS_POLL_KQ_OP_ADD2_R			6
-#define ERTS_POLL_KQ_OP_ADD2_W			7
-
-#endif
-
-struct ErtsPollSet_ {
-    ErtsPollSet next;
+/*
+ * This struct is not really exported, but it's nice to
+ * get unique names in debugger for kp/nkp
+ */
+struct ERTS_POLL_EXPORT(erts_pollset) {
+    int id;
     int internal_fd_limit;
-    ErtsFdStatus *fds_status;
     erts_atomic_t no_of_user_fds;
-    int fds_status_len;
+
 #if ERTS_POLL_USE_KERNEL_POLL
     int kp_fd;
-    int res_events_len;
-#if ERTS_POLL_USE_EPOLL
-    struct epoll_event *res_events;
-#elif ERTS_POLL_USE_KQUEUE
-    struct kevent *res_events;
-#elif ERTS_POLL_USE_DEVPOLL
-    struct pollfd *res_events;
-#endif
 #endif /* ERTS_POLL_USE_KERNEL_POLL */
+
 #if ERTS_POLL_USE_POLL
     int next_poll_fds_ix;
     int no_poll_fds;
     int poll_fds_len;
-    struct pollfd*poll_fds;
+    struct pollfd *poll_fds;
 #elif ERTS_POLL_USE_SELECT
     int next_sel_fd;
     int max_fd;
-#if ERTS_POLL_USE_FALLBACK
-    int no_select_fds;
-#endif
     ERTS_fd_set input_fds;
     ERTS_fd_set res_input_fds;
     ERTS_fd_set output_fds;
     ERTS_fd_set res_output_fds;
+#elif ERTS_POLL_USE_DEVPOLL
+    struct pollfd *poll_fds;
+    int poll_fds_ix;
 #endif
+
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
+    ErtsFdStatus *fds_status;
+    int fds_status_len;
     ErtsPollSetUpdateRequestsBlock update_requests;
     ErtsPollSetUpdateRequestsBlock *curr_upd_req_block;
     erts_atomic32_t have_update_requests;
-    erts_atomic32_t polled;
     erts_mtx_t mtx;
-    int wake_fds[2];
-#if ERTS_POLL_USE_TIMERFD
-    int timer_fd;
-#endif
-#if ERTS_POLL_USE_FALLBACK
-    int fallback_used;
-#endif
     erts_atomic32_t wakeup_state;
-    erts_atomic64_t timeout_time;
-#ifdef ERTS_POLL_COUNT_AVOIDED_WAKEUPS
-    erts_atomic_t no_avoided_wakeups;
-    erts_atomic_t no_avoided_interrupts;
-    erts_atomic_t no_interrupt_timed;
+#endif
+
+#if ERTS_POLL_USE_WAKEUP_PIPE
+    int wake_fds[2];
 #endif
 };
 
 void erts_silence_warn_unused_result(long unused);
 static void fatal_error(char *format, ...);
-static void fatal_error_async_signal_safe(char *error_str);
 
 static int max_fds = -1;
-static ErtsPollSet pollsets;
-static erts_mtx_t pollsets_lock;
 
 #if ERTS_POLL_USE_POLL
 
+#if !ERTS_POLL_IS_FALLBACK
+static ERTS_INLINE short ev2pollev(ErtsPollEvents ev)
+{
+    return ERTS_POLL_EV_E2N(ev);
+}
+
+static ERTS_INLINE ErtsPollEvents pollev2ev(short ev)
+{
+    return ERTS_POLL_EV_N2E(ev);
+}
+
+#else /* ERTS_POLL_IS_FALLBACK */
+
 static ERTS_INLINE short
 ev2pollev(ErtsPollEvents ev)
 {
-#if !ERTS_POLL_USE_FALLBACK || ERTS_POLL_USE_KQUEUE
-    return ERTS_POLL_EV_E2N(ev);
-#else /* Note, we only map events we are interested in */
     short res_ev = (short) 0;
     if (ev & ERTS_POLL_EV_IN)
-	res_ev |= ERTS_POLL_EV_NKP_IN;
+       res_ev |= ERTS_POLL_EV_NKP_IN;
     if (ev & ERTS_POLL_EV_OUT)
-	res_ev |= ERTS_POLL_EV_NKP_OUT;
+       res_ev |= ERTS_POLL_EV_NKP_OUT;
     return res_ev;
-#endif
 }
 
 static ERTS_INLINE ErtsPollEvents
 pollev2ev(short ev)
 {
-#if !ERTS_POLL_USE_FALLBACK || ERTS_POLL_USE_KQUEUE
-    return ERTS_POLL_EV_N2E(ev);
-#else /* Note, we only map events we are interested in */
     ErtsPollEvents res_ev = (ErtsPollEvents) 0;
     if (ev & ERTS_POLL_EV_NKP_IN)
-	res_ev |= ERTS_POLL_EV_IN;
+       res_ev |= ERTS_POLL_EV_IN;
     if (ev & ERTS_POLL_EV_NKP_OUT)
-	res_ev |= ERTS_POLL_EV_OUT;
+       res_ev |= ERTS_POLL_EV_OUT;
     if (ev & ERTS_POLL_EV_NKP_ERR)
-	res_ev |= ERTS_POLL_EV_ERR;
+       res_ev |= ERTS_POLL_EV_ERR;
     if (ev & ERTS_POLL_EV_NKP_NVAL)
-	res_ev |= ERTS_POLL_EV_NVAL;
-    return res_ev;
-#endif
+       res_ev |= ERTS_POLL_EV_NVAL;
+   return res_ev;
 }
 
-#endif
+#endif /* !ERTS_POLL_IS_FALLBACK */
+
+#endif /* ERTS_POLL_USE_POLL */
+
 
 #ifdef HARD_DEBUG
 static void check_poll_result(ErtsPollResFd pr[], int len);
-#if ERTS_POLL_USE_DEVPOLL
-static void check_poll_status(ErtsPollSet ps);
-#endif /* ERTS_POLL_USE_DEVPOLL */
 #endif /* HARD_DEBUG */
-#ifdef ERTS_POLL_DEBUG_PRINT
+#if ERTS_POLL_USE_DEVPOLL && defined(DEBUG)
+static void check_poll_status(ErtsPollSet *ps);
+#endif /* ERTS_POLL_USE_DEVPOLL && DEBUG */
 static void print_misc_debug_info(void);
+#if ERTS_POLL_USE_EPOLL
+uint32_t epoll_events(int kp_fd, int fd);
 #endif
 
-static ERTS_INLINE void
-init_timeout_time(ErtsPollSet ps)
-{
-    erts_atomic64_init_nob(&ps->timeout_time,
-			   (erts_aint64_t) ERTS_MONOTONIC_TIME_MAX);
-}
-
-static ERTS_INLINE void
-set_timeout_time(ErtsPollSet ps, ErtsMonotonicTime time)
-{
-    erts_atomic64_set_relb(&ps->timeout_time,
-			   (erts_aint64_t) time);
-}
-
-static ERTS_INLINE ErtsMonotonicTime
-get_timeout_time(ErtsPollSet ps)
-{
-    return (ErtsMonotonicTime) erts_atomic64_read_acqb(&ps->timeout_time);
-}
 
 #define ERTS_POLL_NOT_WOKEN	0
 #define ERTS_POLL_WOKEN		-1
 #define ERTS_POLL_WOKEN_INTR	1
 
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
 static ERTS_INLINE void
-reset_wakeup_state(ErtsPollSet ps)
+reset_wakeup_state(ErtsPollSet *ps)
 {
     erts_atomic32_set_mb(&ps->wakeup_state, ERTS_POLL_NOT_WOKEN);
 }
+#endif
 
 static ERTS_INLINE int
-is_woken(ErtsPollSet ps)
+is_woken(ErtsPollSet *ps)
 {
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     return erts_atomic32_read_acqb(&ps->wakeup_state) != ERTS_POLL_NOT_WOKEN;
+#else
+    return 0;
+#endif
 }
 
 static ERTS_INLINE int
-is_interrupted_reset(ErtsPollSet ps)
+is_interrupted_reset(ErtsPollSet *ps)
 {
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     return (erts_atomic32_xchg_acqb(&ps->wakeup_state, ERTS_POLL_NOT_WOKEN)
 	    == ERTS_POLL_WOKEN_INTR);
+#else
+    return 0;
+#endif
 }
 
 static ERTS_INLINE void
-woke_up(ErtsPollSet ps)
+woke_up(ErtsPollSet *ps)
 {
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     erts_aint32_t wakeup_state = erts_atomic32_read_acqb(&ps->wakeup_state);
     if (wakeup_state == ERTS_POLL_NOT_WOKEN)
 	(void) erts_atomic32_cmpxchg_nob(&ps->wakeup_state,
 					 ERTS_POLL_WOKEN,
 					 ERTS_POLL_NOT_WOKEN);
     ASSERT(erts_atomic32_read_nob(&ps->wakeup_state) != ERTS_POLL_NOT_WOKEN);
+#endif
 }
 
 /*
  * --- Wakeup pipe -----------------------------------------------------------
  */
 
+#if ERTS_POLL_USE_WAKEUP_PIPE
 
 static ERTS_INLINE void
-wake_poller(ErtsPollSet ps, int interrupted, int async_signal_safe)
+wake_poller(ErtsPollSet *ps, int interrupted)
 {
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     int wake;
-    if (async_signal_safe)
-	wake = 1;
-    else {
-	erts_aint32_t wakeup_state;
-	if (!interrupted)
-	    wakeup_state = erts_atomic32_cmpxchg_relb(&ps->wakeup_state,
-						      ERTS_POLL_WOKEN,
-						      ERTS_POLL_NOT_WOKEN);
-	else
-            wakeup_state = erts_atomic32_xchg_relb(&ps->wakeup_state,
-                                                   ERTS_POLL_WOKEN_INTR);
-	wake = wakeup_state == ERTS_POLL_NOT_WOKEN;
-    }
-    /*
-     * NOTE: This function might be called from signal handlers in the
-     *       non-smp case; therefore, it has to be async-signal safe in
-     *       the non-smp case.
-     */
-    if (wake) {
+    erts_aint32_t wakeup_state;
+    if (!interrupted)
+        wakeup_state = erts_atomic32_cmpxchg_relb(&ps->wakeup_state,
+                                                  ERTS_POLL_WOKEN,
+                                                  ERTS_POLL_NOT_WOKEN);
+    else
+        wakeup_state = erts_atomic32_xchg_relb(&ps->wakeup_state,
+                                               ERTS_POLL_WOKEN_INTR);
+    wake = wakeup_state == ERTS_POLL_NOT_WOKEN;
+
+    if (wake)
+#endif
+    {
 	ssize_t res;
 	if (ps->wake_fds[1] < 0)
 	    return; /* Not initialized yet */
@@ -428,29 +430,27 @@ wake_poller(ErtsPollSet ps, int interrupted, int async_signal_safe)
 	    res = write(ps->wake_fds[1], "!", 1);
 	} while (res < 0 && errno == EINTR);
 	if (res <= 0 && errno != ERRNO_BLOCK) {
-	    if (async_signal_safe)
-		fatal_error_async_signal_safe(__FILE__
-					      ":XXX:wake_poller(): "
-					      "Failed to write on wakeup pipe\n");
-	    else
-		fatal_error("%s:%d:wake_poller(): "
-			    "Failed to write to wakeup pipe fd=%d: "
-			    "%s (%d)\n",
-			    __FILE__, __LINE__,
-			    ps->wake_fds[1],
-			    erl_errno_id(errno), errno);
+            fatal_error("%s:%d:wake_poller(): "
+                        "Failed to write to wakeup pipe fd=%d: "
+                        "%s (%d)\n",
+                        __FILE__, __LINE__,
+                        ps->wake_fds[1],
+                        erl_errno_id(errno), errno);
 	}
     }
 }
 
 static ERTS_INLINE void
-cleanup_wakeup_pipe(ErtsPollSet ps)
+cleanup_wakeup_pipe(ErtsPollSet *ps)
 {
+    int intr = 0;
     int fd = ps->wake_fds[0];
     int res;
     do {
 	char buf[32];
 	res = read(fd, buf, sizeof(buf));
+	if (res > 0)
+	    intr = 1;
     } while (res > 0 || (res < 0 && errno == EINTR));
     if (res < 0 && errno != ERRNO_BLOCK) {
 	fatal_error("%s:%d:cleanup_wakeup_pipe(): "
@@ -460,10 +460,14 @@ cleanup_wakeup_pipe(ErtsPollSet ps)
 		    fd,
 		    erl_errno_id(errno), errno);
     }
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
+    if (intr)
+	erts_atomic32_set_nob(&ps->wakeup_state, ERTS_POLL_WOKEN_INTR);
+#endif
 }
 
 static void
-create_wakeup_pipe(ErtsPollSet ps)
+create_wakeup_pipe(ErtsPollSet *ps)
 {
     int do_wake = 0;
     int wake_fds[2];
@@ -480,20 +484,13 @@ create_wakeup_pipe(ErtsPollSet ps)
     SET_NONBLOCKING(wake_fds[0]);
     SET_NONBLOCKING(wake_fds[1]);
 
-#ifdef ERTS_POLL_DEBUG_PRINT
-    erts_printf("wakeup fds = {%d, %d}\n", wake_fds[0], wake_fds[1]);
-#endif
+    DEBUG_PRINT("wakeup fds = {%d, %d}", ps, wake_fds[0], wake_fds[1]);
 
     ERTS_POLL_EXPORT(erts_poll_control)(ps,
 					wake_fds[0],
+                                        ERTS_POLL_OP_ADD,
 					ERTS_POLL_EV_IN,
-					1, &do_wake);
-#if ERTS_POLL_USE_FALLBACK
-    /* We depend on the wakeup pipe being handled by kernel poll */
-    if (ps->fds_status[wake_fds[0]].flags & ERTS_POLL_FD_FLG_INFLBCK)
-	fatal_error("%s:%d:create_wakeup_pipe(): Internal error\n",
-		    __FILE__, __LINE__);
-#endif
+                                        &do_wake);
     if (ps->internal_fd_limit <= wake_fds[1])
 	ps->internal_fd_limit = wake_fds[1] + 1;
     if (ps->internal_fd_limit <= wake_fds[0])
@@ -502,82 +499,16 @@ create_wakeup_pipe(ErtsPollSet ps)
     ps->wake_fds[1] = wake_fds[1];
 }
 
-
-/*
- * --- timer fd -----------------------------------------------------------
- */
-
-#if ERTS_POLL_USE_TIMERFD
-
-/* We use the timerfd when using epoll_wait to get high accuracy
-   timeouts, i.e. we want to sleep with < ms accuracy. */
-
-static void
-create_timerfd(ErtsPollSet ps)
-{
-    int do_wake = 0;
-    int timer_fd;
-    timer_fd = timerfd_create(CLOCK_MONOTONIC,0);
-    ERTS_POLL_EXPORT(erts_poll_control)(ps,
-					timer_fd,
-					ERTS_POLL_EV_IN,
-					1, &do_wake);
-#if ERTS_POLL_USE_FALLBACK
-    /* We depend on the wakeup pipe being handled by kernel poll */
-    if (ps->fds_status[timer_fd].flags & ERTS_POLL_FD_FLG_INFLBCK)
-	fatal_error("%s:%d:create_wakeup_pipe(): Internal error\n",
-		    __FILE__, __LINE__);
 #endif
-    if (ps->internal_fd_limit <= timer_fd)
-	ps->internal_fd_limit = timer_fd + 1;
-    ps->timer_fd = timer_fd;
-}
-
-static ERTS_INLINE void
-timerfd_set(ErtsPollSet ps, struct itimerspec *its)
-{
-#ifdef DEBUG
-    struct itimerspec old_its;
-    int res;
-    res = timerfd_settime(ps->timer_fd, 0, its, &old_its);
-    ASSERT(res == 0);
-    ASSERT(old_its.it_interval.tv_sec == 0 &&
-           old_its.it_interval.tv_nsec == 0 &&
-           old_its.it_value.tv_sec == 0 &&
-           old_its.it_value.tv_nsec == 0);
-
-#else
-    timerfd_settime(ps->timer_fd, 0, its, NULL);
-#endif
-}
-
-static ERTS_INLINE int
-timerfd_clear(ErtsPollSet ps, int res, int max_res) {
-
-    struct itimerspec its;
-    /* we always have to clear the timer */
-    its.it_interval.tv_sec = 0;
-    its.it_interval.tv_nsec = 0;
-    its.it_value.tv_sec = 0;
-    its.it_value.tv_nsec = 0;
-    timerfd_settime(ps->timer_fd, 0, &its, NULL);
-
-    /* only timeout fd triggered */
-    if (res == 1 && ps->res_events[0].data.fd == ps->timer_fd)
-        return 0;
-
-    return res;
-}
-
-#endif /* ERTS_POLL_USE_TIMERFD */
-
 
 /*
  * --- Poll set update requests ----------------------------------------------
  */
 
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
+
 static ERTS_INLINE void
-enqueue_update_request(ErtsPollSet ps, int fd)
+enqueue_update_request(ErtsPollSet *ps, int fd)
 {
     ErtsPollSetUpdateRequestsBlock *urqbp;
 
@@ -592,13 +523,11 @@ enqueue_update_request(ErtsPollSet ps, int fd)
     urqbp = ps->curr_upd_req_block;
 
     if (urqbp->len == ERTS_POLLSET_UPDATE_REQ_BLOCK_SIZE) {
-	ASSERT(!urqbp->next);
 	urqbp = erts_alloc(ERTS_ALC_T_POLLSET_UPDREQ,
 			   sizeof(ErtsPollSetUpdateRequestsBlock));
-	ps->curr_upd_req_block->next = urqbp;
-	ps->curr_upd_req_block = urqbp;
-	urqbp->next = NULL;
+	urqbp->next = ps->curr_upd_req_block;
 	urqbp->len = 0;
+	ps->curr_upd_req_block = urqbp;
     }
 
     ps->fds_status[fd].flags |= ERTS_POLL_FD_FLG_INURQ;
@@ -606,28 +535,29 @@ enqueue_update_request(ErtsPollSet ps, int fd)
 }
 
 static ERTS_INLINE void
-free_update_requests_block(ErtsPollSet ps,
+free_update_requests_block(ErtsPollSet *ps,
 			   ErtsPollSetUpdateRequestsBlock *urqbp)
 {
     if (urqbp != &ps->update_requests)
 	erts_free(ERTS_ALC_T_POLLSET_UPDREQ, (void *) urqbp);
     else {
-	urqbp->next = NULL;
 	urqbp->len = 0;
     }
 }
 
+#endif /* !ERTS_POLL_USE_CONCURRENT_UPDATE */
 
 /*
  * --- Growing poll set structures -------------------------------------------
  */
 
-#ifndef ERTS_KERNEL_POLL_VERSION   /* only one shared implementation */
+#if !ERTS_NO_KERNEL_POLL_VERSION || !ERTS_ENABLE_KERNEL_POLL
+/* only one shared implementation */
 
 #define ERTS_FD_TABLE_MIN_LENGTH	1024
 #define ERTS_FD_TABLE_EXP_THRESHOLD	(2048*1024)
 
-int erts_poll_new_table_len (int old_len, int need_len)
+int erts_poll_new_table_len(int old_len, int need_len)
 {
     int new_len;
 
@@ -637,7 +567,7 @@ int erts_poll_new_table_len (int old_len, int need_len)
     }
     else {
         new_len = old_len;
-        do {            
+        do {
             if (new_len < ERTS_FD_TABLE_EXP_THRESHOLD)
                 new_len *= 2;
             else
@@ -650,30 +580,9 @@ int erts_poll_new_table_len (int old_len, int need_len)
 }
 #endif
 
-#if ERTS_POLL_USE_KERNEL_POLL
-static void
-grow_res_events(ErtsPollSet ps, int new_len)
-{
-    size_t new_size = sizeof(
-#if ERTS_POLL_USE_EPOLL
-	struct epoll_event
-#elif ERTS_POLL_USE_DEVPOLL
-	struct pollfd
-#elif ERTS_POLL_USE_KQUEUE
-	struct kevent
-#endif
-	) * erts_poll_new_table_len(ps->res_events_len, new_len);
-    /* We do not need to save previously stored data */
-    if (ps->res_events)
-	erts_free(ERTS_ALC_T_POLL_RES_EVS, ps->res_events);
-    ps->res_events = erts_alloc(ERTS_ALC_T_POLL_RES_EVS, new_size);
-    ps->res_events_len = new_len;
-}
-#endif /* ERTS_POLL_USE_KERNEL_POLL */
-
 #if ERTS_POLL_USE_POLL
 static void
-grow_poll_fds(ErtsPollSet ps, int min_ix)
+grow_poll_fds(ErtsPollSet *ps, int min_ix)
 {
     int i;
     int new_len = erts_poll_new_table_len(ps->poll_fds_len, min_ix + 1);
@@ -721,8 +630,9 @@ ensure_select_fds(int fd, ERTS_fd_set* in, ERTS_fd_set* out)
 #  define ensure_select_fds(fd, in, out) do {} while(0)
 #endif /* _DARWIN_UNLIMITED_SELECT */
 
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
 static void
-grow_fds_status(ErtsPollSet ps, int min_fd)
+grow_fds_status(ErtsPollSet *ps, int min_fd)
 {
     int i;
     int new_len = erts_poll_new_table_len(ps->fds_status_len, min_fd + 1);
@@ -741,428 +651,26 @@ grow_fds_status(ErtsPollSet ps, int min_fd)
 #endif
 	ps->fds_status[i].used_events = (ErtsPollEvents) 0;
 	ps->fds_status[i].events = (ErtsPollEvents) 0;
-#if ERTS_POLL_COALESCE_KP_RES
-	ps->fds_status[i].res_ev_ix = (unsigned short) ERTS_POLL_MAX_RES;
-#endif
 	ps->fds_status[i].flags = (unsigned short) 0;
     }
     ps->fds_status_len = new_len;
 }
+#endif
 
 /*
  * --- Selecting fd to poll on -----------------------------------------------
  */
 
-#if ERTS_POLL_USE_FALLBACK
-static int update_fallback_pollset(ErtsPollSet ps, int fd);
-#endif
-
-static ERTS_INLINE int
-need_update(ErtsPollSet ps, int fd)
-{
-#if ERTS_POLL_USE_KERNEL_POLL
-    int reset;
-#endif
-
-    ASSERT(fd < ps->fds_status_len);
-
-#if ERTS_POLL_USE_KERNEL_POLL
-    reset = (int) (ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_RST);
-    if (reset && !ps->fds_status[fd].used_events) {
-	ps->fds_status[fd].flags &= ~ERTS_POLL_FD_FLG_RST;
-	reset = 0;
-    }
-#else
-    ps->fds_status[fd].flags &= ~ERTS_POLL_FD_FLG_RST;
-#endif
-
-    if (ps->fds_status[fd].used_events != ps->fds_status[fd].events)
-	return 1;
-
-#if ERTS_POLL_USE_KERNEL_POLL
-    return reset;
-#else
-    return 0;
-#endif
-}
-
-#if ERTS_POLL_USE_BATCH_UPDATE_POLLSET
-
-#if ERTS_POLL_USE_KQUEUE
-#define ERTS_POLL_MIN_BATCH_BUF_SIZE 128
-#else
-#define ERTS_POLL_MIN_BATCH_BUF_SIZE 64
-#endif
-
-typedef struct {
-    int len;
-    int size;
-#if ERTS_POLL_USE_DEVPOLL
-    struct pollfd *buf;
-#elif ERTS_POLL_USE_KQUEUE
-    struct kevent *buf;
-    struct kevent *ebuf;
-#endif
-} ErtsPollBatchBuf;
-
-
-static ERTS_INLINE void
-setup_batch_buf(ErtsPollSet ps, ErtsPollBatchBuf *bbp)
-{
-    bbp->len = 0;
-#if ERTS_POLL_USE_DEVPOLL
-    bbp->size = ps->res_events_len;
-    bbp->buf = ps->res_events;
-#elif ERTS_POLL_USE_KQUEUE
-    bbp->size = ps->res_events_len/2;
-    bbp->buf = ps->res_events;
-    bbp->ebuf = bbp->buf + bbp->size;
-#endif
-}
-
-
-#if ERTS_POLL_USE_DEVPOLL
-
-static void
-write_batch_buf(ErtsPollSet ps, ErtsPollBatchBuf *bbp)
-{
-    ssize_t wres;
-    char *buf = (char *) bbp->buf;
-    size_t buf_size = sizeof(struct pollfd)*bbp->len;
-    
-    while (1) {
-	wres = write(ps->kp_fd, (void *) buf, buf_size);
-	if (wres < 0) {
-	    if (errno == EINTR)
-		continue;
-	    fatal_error("%s:%d:write_batch_buf(): "
-			"Failed to write to /dev/poll: "
-			"%s (%d)\n",
-			__FILE__, __LINE__,
-			erl_errno_id(errno), errno);
-	}
-	buf_size -= wres;
-	if (buf_size <= 0)
-	    break;
-	buf += wres;
-    }
-
-    if (buf_size < 0) {
-	fatal_error("%s:%d:write_devpoll_buf(): Internal error\n",
-		    __FILE__, __LINE__);
-    }
-    bbp->len = 0;
-}
-
-#elif ERTS_POLL_USE_KQUEUE
-
-static void
-write_batch_buf(ErtsPollSet ps, ErtsPollBatchBuf *bbp)
-{
-    int res;
-    int len = bbp->len;
-    struct kevent *buf = bbp->buf;
-    struct timespec ts = {0, 0};
-
-    do {
-	res = kevent(ps->kp_fd, buf, len, NULL, 0, &ts);
-    } while (res < 0 && errno == EINTR);
-    if (res < 0) {
-	int i;
-	struct kevent *ebuf = bbp->ebuf;
-	do {
-	    res = kevent(ps->kp_fd, buf, len, ebuf, len, &ts);
-	} while (res < 0 && errno == EINTR);
-	if (res < 0) {
-	    fatal_error("%s:%d: kevent() failed: %s (%d)\n",
-			__FILE__, __LINE__, erl_errno_id(errno), errno);
-	}
-	for (i = 0; i < res; i++) {
-	    if (ebuf[i].flags & EV_ERROR) {
-		short filter;
-		int fd = (int) ebuf[i].ident;
-
-		switch ((int) (long) ebuf[i].udata) {
-
-		    /*
-		     * Since we use a lazy update approach EV_DELETE will
-		     * frequently fail. This since kqueue automatically
-		     * removes a file descriptor that is closed from the
-		     * poll set.
-		     */
-		case ERTS_POLL_KQ_OP_DEL_R:
-		case ERTS_POLL_KQ_OP_DEL_W:
-		case ERTS_POLL_KQ_OP_HANDLED:
-		    break;
-
-		    /*
-		     * According to the kqueue man page EVFILT_READ support
-		     * does not imply EVFILT_WRITE support; therefore,
-		     * if an EV_ADD fail, we may have to remove other
-		     * events on this fd in the kqueue pollset before
-		     * adding fd to the fallback pollset.
-		     */
-		case ERTS_POLL_KQ_OP_ADD_W:
-		    if (ps->fds_status[fd].used_events & ERTS_POLL_EV_IN) {
-			filter = EVFILT_READ;
-			goto rm_add_fb;
-		    }
-		    goto add_fb;
-		case ERTS_POLL_KQ_OP_ADD_R:
-		    if (ps->fds_status[fd].used_events & ERTS_POLL_EV_OUT) {
-			filter = EVFILT_WRITE;
-			goto rm_add_fb;
-		    }
-		    goto add_fb;
-		case ERTS_POLL_KQ_OP_ADD2_W:
-		case ERTS_POLL_KQ_OP_ADD2_R: {
-		    int j;
-		    for (j = i+1; j < res; j++) {
-			if (fd == (int) ebuf[j].ident) {
-			    ebuf[j].udata = (void *) ERTS_POLL_KQ_OP_HANDLED;
-			    if (!(ebuf[j].flags & EV_ERROR)) {
-				switch ((int) (long) ebuf[j].udata) {
-				case ERTS_POLL_KQ_OP_ADD2_W:
-				    filter = EVFILT_WRITE;
-				    goto rm_add_fb;
-				case ERTS_POLL_KQ_OP_ADD2_R:
-				    filter = EVFILT_READ;
-				    goto rm_add_fb;
-				default:
-				    fatal_error("%s:%d:write_batch_buf(): "
-						"Internal error",
-						__FILE__, __LINE__);
-				    break;
-				}
-			    }
-			    goto add_fb;
-			}
-		    }
-		    /* The other add succeded... */
-		    filter = ((((int) (long) ebuf[i].udata)
-			       == ERTS_POLL_KQ_OP_ADD2_W)
-			      ? EVFILT_READ
-			      : EVFILT_WRITE);
-		rm_add_fb:
-		    { 
-			struct kevent kev;
-			struct timespec ts = {0, 0};
-			EV_SET(&kev, fd, filter, EV_DELETE, 0, 0, 0);
-			(void) kevent(ps->kp_fd, &kev, 1, NULL, 0, &ts);
-		    }
-
-		add_fb:
-		    ps->fds_status[fd].flags |= ERTS_POLL_FD_FLG_USEFLBCK;
-		    ASSERT(ps->fds_status[fd].used_events);
-		    ps->fds_status[fd].used_events = 0;
-		    erts_atomic_dec_nob(&ps->no_of_user_fds);
-		    update_fallback_pollset(ps, fd);
-		    ASSERT(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK);
-		    break;
-		}
-		default:
-		    fatal_error("%s:%d:write_batch_buf(): Internal error",
-				__FILE__, __LINE__);
-		    break;
-		}
-	    }
-	}
-    }
-    bbp->len = 0;
-}
-
-#endif /* ERTS_POLL_USE_KQUEUE */
-
-static ERTS_INLINE void
-batch_update_pollset(ErtsPollSet ps, int fd, ErtsPollBatchBuf *bbp)
-{
-    int buf_len;
-#if ERTS_POLL_USE_DEVPOLL
-    short events;
-    struct pollfd *buf;
-#elif ERTS_POLL_USE_KQUEUE
-    struct kevent *buf;
-#endif
-
-#ifdef ERTS_POLL_DEBUG_PRINT
-    erts_printf("Doing lazy update on fd=%d\n", fd);
-#endif
-
-    if (!need_update(ps, fd))
-	return;
-
-    /* Make sure we have room for at least maximum no of entries
-       per fd */
-    if (bbp->size - bbp->len < 2)
-	write_batch_buf(ps, bbp);
-
-    buf_len = bbp->len;
-    buf = bbp->buf;
-
-    ASSERT(fd < ps->fds_status_len);
-
-#if ERTS_POLL_USE_DEVPOLL
-    events = ERTS_POLL_EV_E2N(ps->fds_status[fd].events);
-    if (!events) {
-	buf[buf_len].events = POLLREMOVE;
-	erts_atomic_dec_nob(&ps->no_of_user_fds);
-    }
-    else if (!ps->fds_status[fd].used_events) {
-	buf[buf_len].events = events;
-	erts_atomic_inc_nob(&ps->no_of_user_fds);
-    }
-    else {
-	if ((ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_RST)
-	    || (ps->fds_status[fd].used_events & ~events)) {
-	    /* Reset or removed events... */
-	    buf[buf_len].fd = fd;
-	    buf[buf_len].events = POLLREMOVE;
-	    buf[buf_len++].revents = 0;
-	}
-	buf[buf_len].events = events;
-    }
-    buf[buf_len].fd = fd;
-    buf[buf_len++].revents = 0;
-
-#elif ERTS_POLL_USE_KQUEUE
-
-    if (ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK) {
-	if (ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_USEFLBCK)
-	    update_fallback_pollset(ps, fd);
-	else { /* Remove from fallback and try kqueue */
-	    ErtsPollEvents events = ps->fds_status[fd].events;
-	    ps->fds_status[fd].events = (ErtsPollEvents) 0;
-	    update_fallback_pollset(ps, fd);
-	    ASSERT(!(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK));
-	    if (events) {
-		ps->fds_status[fd].events = events;
-		goto try_kqueue;
-	    }
-	}
-    }
-    else {
-	ErtsPollEvents events, used_events;
-	int mod_w, mod_r;
-    try_kqueue:
-	events = ERTS_POLL_EV_E2N(ps->fds_status[fd].events);
-	used_events = ERTS_POLL_EV_E2N(ps->fds_status[fd].used_events);
-	if (!(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_RST)) {
-	    if (!used_events &&
-		(events & ERTS_POLL_EV_IN) && (events & ERTS_POLL_EV_OUT))
-		goto do_add_rw;
-	    mod_r = ((events & ERTS_POLL_EV_IN)
-		     != (used_events & ERTS_POLL_EV_IN));
-	    mod_w = ((events & ERTS_POLL_EV_OUT)
-		     != (used_events & ERTS_POLL_EV_OUT));
-	    goto do_mod;
-	}
-	else { /* Reset */
-	    if ((events & ERTS_POLL_EV_IN) && (events & ERTS_POLL_EV_OUT)) {
-	    do_add_rw:
-		EV_SET(&buf[buf_len], fd, EVFILT_READ, EV_ADD,
-		       0, 0, (void *) ERTS_POLL_KQ_OP_ADD2_R);
-		buf_len++;
-		EV_SET(&buf[buf_len], fd, EVFILT_WRITE, EV_ADD,
-		       0, 0, (void *) ERTS_POLL_KQ_OP_ADD2_W);
-		buf_len++;
-
-	    }
-	    else {
-		mod_r = 1;
-		mod_w = 1;
-	    do_mod:
-		if (mod_r) {
-		    if (events & ERTS_POLL_EV_IN) {
-			EV_SET(&buf[buf_len], fd, EVFILT_READ, EV_ADD,
-			       0, 0, (void *) ERTS_POLL_KQ_OP_ADD_R);
-			buf_len++;
-		    }
-		    else if (used_events & ERTS_POLL_EV_IN) {
-			EV_SET(&buf[buf_len], fd, EVFILT_READ, EV_DELETE,
-			       0, 0, (void *) ERTS_POLL_KQ_OP_DEL_R);
-			buf_len++;
-		    }
-		}
-		if (mod_w) {
-		    if (events & ERTS_POLL_EV_OUT) {
-			EV_SET(&buf[buf_len], fd, EVFILT_WRITE, EV_ADD,
-			       0, 0, (void *) ERTS_POLL_KQ_OP_ADD_W);
-			buf_len++;
-		    }
-		    else if (used_events & ERTS_POLL_EV_OUT) {
-			EV_SET(&buf[buf_len], fd, EVFILT_WRITE, EV_DELETE,
-			       0, 0, (void *) ERTS_POLL_KQ_OP_DEL_W);
-			buf_len++;
-		    }
-		}
-	    }
-	}
-	if (used_events) {
-	    if (!events) {
-		erts_atomic_dec_nob(&ps->no_of_user_fds);
-	    }
-	}
-	else {
-	    if (events)
-		erts_atomic_inc_nob(&ps->no_of_user_fds);
-	}
-	ASSERT((events & ~(ERTS_POLL_EV_IN|ERTS_POLL_EV_OUT)) == 0);
-	ASSERT((used_events & ~(ERTS_POLL_EV_IN|ERTS_POLL_EV_OUT)) == 0);
-    }	    
-
-#endif
-
-    ps->fds_status[fd].flags &= ~ERTS_POLL_FD_FLG_RST;
-    ps->fds_status[fd].used_events = ps->fds_status[fd].events;
-
-    bbp->len = buf_len;
-}
-
-#else /* !ERTS_POLL_USE_BATCH_UPDATE_POLLSET */
-
 #if ERTS_POLL_USE_EPOLL
 static int
-#if ERTS_POLL_USE_CONCURRENT_UPDATE
-conc_update_pollset(ErtsPollSet ps, int fd, int *update_fallback)
-#else
-update_pollset(ErtsPollSet ps, int fd)
-#endif
+update_pollset(ErtsPollSet *ps, int fd, ErtsPollOp op, ErtsPollEvents events)
 {
     int res;
-    int op;
+    int epoll_op = EPOLL_CTL_MOD;
     struct epoll_event epe_templ;
     struct epoll_event epe;
 
-    ASSERT(fd < ps->fds_status_len);
-
-    if (!need_update(ps, fd))
-	return 0;
-
-#ifdef ERTS_POLL_DEBUG_PRINT
-    erts_printf("Doing update on fd=%d\n", fd);
-#endif
-    if (ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK) {
-#if ERTS_POLL_USE_CONCURRENT_UPDATE
-	if (!*update_fallback) {
-	    *update_fallback = 1;
-	    return 0;
-	}
-#endif
-	if (ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_USEFLBCK) {
-	    return update_fallback_pollset(ps, fd);
-	}
-	else { /* Remove from fallback and try epoll */
-	    ErtsPollEvents events = ps->fds_status[fd].events;
-	    ps->fds_status[fd].events = (ErtsPollEvents) 0;
-	    res = update_fallback_pollset(ps, fd);
-	    ASSERT(!(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK));
-	    if (!events)
-		return res;
-	    ps->fds_status[fd].events = events;
-	}
-    }
-
-    epe_templ.events = ERTS_POLL_EV_E2N(ps->fds_status[fd].events);
+    epe_templ.events = ERTS_POLL_EV_E2N(events) | EPOLLONESHOT;
     epe_templ.data.fd = fd;
 
 #ifdef VALGRIND
@@ -1170,30 +678,24 @@ update_pollset(ErtsPollSet ps, int fd)
     memset((void *) &epe.data, 0, sizeof(epoll_data_t));
 #endif
 
-    if (epe_templ.events && ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_RST) {
-	do {
-	    /* We init 'epe' every time since epoll_ctl() may modify it
-	       (not declared const and not documented as const). */
-	    epe.events = epe_templ.events;
-	    epe.data.fd = epe_templ.data.fd;
-	    res = epoll_ctl(ps->kp_fd, EPOLL_CTL_DEL, fd, &epe);
-	} while (res != 0 && errno == EINTR);
-	erts_atomic_dec_nob(&ps->no_of_user_fds);
-	ps->fds_status[fd].used_events = 0;
-    }
-
-    if (!epe_templ.events) {
+    switch (op) {
+    case ERTS_POLL_OP_DEL:
 	/* A note on EPOLL_CTL_DEL: linux kernel versions before 2.6.9
 	   need a non-NULL event pointer even though it is ignored... */
-	op = EPOLL_CTL_DEL;
+        epoll_op = EPOLL_CTL_DEL;
+        epe_templ.events = 0;
 	erts_atomic_dec_nob(&ps->no_of_user_fds);
-    }
-    else if (!ps->fds_status[fd].used_events) {
-	op = EPOLL_CTL_ADD;
+        break;
+    case ERTS_POLL_OP_ADD:
+        epoll_op = EPOLL_CTL_ADD;
 	erts_atomic_inc_nob(&ps->no_of_user_fds);
-    }
-    else {
-	op = EPOLL_CTL_MOD;
+        break;
+    case ERTS_POLL_OP_MOD:
+        epoll_op = EPOLL_CTL_MOD;
+        break;
+    default:
+        ASSERT(0);
+        break;
     }
 
     do {
@@ -1201,33 +703,32 @@ update_pollset(ErtsPollSet ps, int fd)
 	   (not declared const and not documented as const). */
 	epe.events = epe_templ.events;
 	epe.data.fd = epe_templ.data.fd;
-	res = epoll_ctl(ps->kp_fd, op, fd, &epe);
+	res = epoll_ctl(ps->kp_fd, epoll_op, fd, &epe);
     } while (res != 0 && errno == EINTR);
 
-#if defined(ERTS_POLL_DEBUG_PRINT) && 1
+#if ERTS_POLL_DEBUG_PRINT
     {
 	int saved_errno = errno;
-	erts_printf("%s = epoll_ctl(%d, %s, %d, {Ox%x, %d})\n",
-		     res == 0 ? "0" : erl_errno_id(errno),
-		     ps->kp_fd,
-		     (op == EPOLL_CTL_ADD
-		      ? "EPOLL_CTL_ADD"
-		      : (op == EPOLL_CTL_MOD
-			 ? "EPOLL_CTL_MOD"
-			 : (op == EPOLL_CTL_DEL
-			    ? "EPOLL_CTL_DEL"
-			    : "UNKNOWN"))),
-		     fd,
-		     epe_templ.events,
-		     fd);
+	DEBUG_PRINT_FD("%s = epoll_ctl(%d, %s, %d, {0x%x, %d})",
+                       ps, fd,
+                       res == 0 ? "0" : erl_errno_id(errno),
+                       ps->kp_fd,
+                       (epoll_op == EPOLL_CTL_ADD
+                        ? "EPOLL_CTL_ADD"
+                        : (epoll_op == EPOLL_CTL_MOD
+                           ? "EPOLL_CTL_MOD"
+                           : (epoll_op == EPOLL_CTL_DEL
+                              ? "EPOLL_CTL_DEL"
+                              : "UNKNOWN"))),
+                       fd,
+                       epe_templ.events,
+                       fd);
 	errno = saved_errno;
     }
 #endif
-    if (res == 0)
-	ps->fds_status[fd].used_events = ps->fds_status[fd].events;
-    else {
+    if (res != 0) {
 	switch (op) {
-	case EPOLL_CTL_MOD:
+	case ERTS_POLL_OP_MOD:
 	    epe.events = 0;
 	    do {
 		/* We init 'epe' every time since epoll_ctl() may modify it
@@ -1236,29 +737,18 @@ update_pollset(ErtsPollSet ps, int fd)
 		epe.data.fd = fd;
 		res = epoll_ctl(ps->kp_fd, EPOLL_CTL_DEL, fd, &epe);
 	    } while (res != 0 && errno == EINTR);
-	    ps->fds_status[fd].used_events = 0;
 	/* Fall through ... */
-	case EPOLL_CTL_ADD: {
-	    ps->fds_status[fd].flags |= ERTS_POLL_FD_FLG_USEFLBCK;
+	case ERTS_POLL_OP_ADD: {
 	    erts_atomic_dec_nob(&ps->no_of_user_fds);
-#if ERTS_POLL_USE_CONCURRENT_UPDATE
-	    if (!*update_fallback) {
-		*update_fallback = 1;
-		return 0;
-	    }
-#endif
-	    ASSERT(!(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK));
-	    res = update_fallback_pollset(ps, fd);
-	    ASSERT(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK);
+            res = ERTS_POLL_EV_NVAL;
 	    break;
 	}
-	case EPOLL_CTL_DEL: {
+	case ERTS_POLL_OP_DEL: {
 	    /*
 	     * Since we use a lazy update approach EPOLL_CTL_DEL will
 	     * frequently fail. This since epoll automatically removes
 	     * a filedescriptor that is closed from the poll set.
 	     */
-	    ps->fds_status[fd].used_events = 0;
 	    res = 0;
 	    break;
 	}
@@ -1267,67 +757,277 @@ update_pollset(ErtsPollSet ps, int fd)
 			__FILE__, __LINE__);
 	    break;
 	}
+    } else {
+        res = events;
     }
-    ps->fds_status[fd].flags &= ~ERTS_POLL_FD_FLG_RST;
     return res;
 }
 
-#if ERTS_POLL_USE_CONCURRENT_UPDATE
+#endif /* ERTS_POLL_USE_EPOLL */
+
+#if ERTS_POLL_USE_KQUEUE
+
+/* Some versions of the EV_SET macro used kevp multiple times,
+   so we define out own version that make sure that it is safe
+   to do kevp++ in the argument list. */
+#define ERTS_EV_SET(kevp, a, b, c, f) do {              \
+        struct kevent *kevp_ = kevp;                    \
+        EV_SET(kevp_, a, b, c, 0, 0, f);                \
+    } while(0)
+
 static int
-update_pollset(ErtsPollSet ps, int fd)
+update_pollset(ErtsPollSet *ps, int fd, ErtsPollOp op, ErtsPollEvents events)
 {
-    int update_fallback = 1;
-    return conc_update_pollset(ps, fd, &update_fallback);
-}
-#endif
-
-#endif /* ERTS_POLL_USE_EPOLL */
+    int res = 0, len = 0;
+    struct kevent evts[2];
+    struct timespec ts = {0, 0};
 
-#endif /* ERTS_POLL_USE_BATCH_UPDATE_POLLSET */
+#ifdef EV_DISPATCH
+    /* If we have EV_DISPATCH we use it. The kevent descriptions for both
+       read and write are added on OP_ADD and removed on OP_DEL. And then
+       after than only EV_ENABLE|EV_DISPATCH are used.
+
+       It could be possible to not modify the pollset when disabling and/or
+       deleting events, but that may cause the poll threads to be awoken
+       a lot more than they should so we take the cost here instead of
+       in the poll thread.
+
+       Note: We need to have EV_DISPATCH both when the event is enabled and
+       disabled, as otherwise the event may be triggered twice on each re-arm.
+       Not sure if this is intended or not (can't find anything about it in the
+       man page), but it seems to be the way it works...
+    */
+
+    if (op == ERTS_POLL_OP_DEL) {
+        erts_atomic_dec_nob(&ps->no_of_user_fds);
+        /* We could probably skip this delete, do we want to? */
+        ERTS_EV_SET(&evts[len++], fd, EVFILT_READ, EV_DELETE, (void *) 0);
+        ERTS_EV_SET(&evts[len++], fd, EVFILT_WRITE, EV_DELETE, (void *) 0);
+    } else if (op == ERTS_POLL_OP_ADD) {
+        uint32_t flags;
+        erts_atomic_inc_nob(&ps->no_of_user_fds);
+
+        flags = EV_ADD|EV_DISPATCH;
+        flags |= ((events & ERTS_POLL_EV_IN) ? 0 : EV_DISABLE);
+        ERTS_EV_SET(&evts[len++], fd, EVFILT_READ, flags, (void *) ERTS_POLL_EV_IN);
+
+        flags = EV_ADD|EV_DISPATCH;
+        flags |= ((events & ERTS_POLL_EV_OUT) ? 0 : EV_DISABLE);
+        ERTS_EV_SET(&evts[len++], fd, EVFILT_WRITE, flags, (void *) ERTS_POLL_EV_OUT);
+    } else {
+        uint32_t flags;
+        ASSERT(op == ERTS_POLL_OP_MOD);
 
-#if ERTS_POLL_USE_POLL || ERTS_POLL_USE_SELECT || ERTS_POLL_USE_FALLBACK
+        flags = EV_DISPATCH;
+        flags |= (events & ERTS_POLL_EV_IN) ? EV_ENABLE : EV_DISABLE;
+        ERTS_EV_SET(&evts[len++], fd, EVFILT_READ, flags, (void *) ERTS_POLL_EV_IN);
 
-#if ERTS_POLL_USE_FALLBACK
-static int update_fallback_pollset(ErtsPollSet ps, int fd)
+        flags = EV_DISPATCH;
+        flags |= (events & ERTS_POLL_EV_OUT) ? EV_ENABLE : EV_DISABLE;
+        ERTS_EV_SET(&evts[len++], fd, EVFILT_WRITE, flags, (void *) ERTS_POLL_EV_OUT);
+    }
 #else
-static int update_pollset(ErtsPollSet ps, int fd)
+    uint32_t flags = EV_ADD|EV_ONESHOT;
+
+    if (op == ERTS_POLL_OP_DEL) {
+        erts_atomic_dec_nob(&ps->no_of_user_fds);
+        /* We don't do anything when a delete is issued. The fds will be removed
+           when they are triggered, or when they are closed. */
+        events = 0;
+    } else if (op == ERTS_POLL_OP_ADD) {
+        erts_atomic_inc_nob(&ps->no_of_user_fds);
+    }
+
+    if (events & ERTS_POLL_EV_IN) {
+        ERTS_EV_SET(&evts[len++], fd, EVFILT_READ, flags, (void *) ERTS_POLL_EV_IN);
+    }
+    if (events & ERTS_POLL_EV_OUT) {
+        ERTS_EV_SET(&evts[len++], fd, EVFILT_WRITE, flags, (void *) ERTS_POLL_EV_OUT);
+    }
+
 #endif
-{
-#ifdef ERTS_POLL_DEBUG_PRINT
-#if ERTS_POLL_USE_FALLBACK
-    erts_printf("Doing fallback update on fd=%d\n", fd);
+    if (len)
+        do {
+            res = kevent(ps->kp_fd, evts, len, NULL, 0, &ts);
+        } while (res < 0 && errno == EINTR);
+#if ERTS_POLL_DEBUG_PRINT
+    {
+        int saved_errno = errno, i;
+        char keventb[255], *keventbp = keventb;
+        if (res < 0)
+            keventbp += sprintf(keventbp,"%s = ",erl_errno_id(saved_errno));
+        else
+            keventbp += sprintf(keventbp,"%d = ",res);
+        keventbp += sprintf(keventbp, "kevent(%d, {",ps->kp_fd);
+        for (i = 0; i < len; i++) {
+            const char *flags = "UNKNOWN";
+            if (evts[i].flags == EV_DELETE) flags = "EV_DELETE";
+            if (evts[i].flags == (EV_ADD|EV_ONESHOT)) flags = "EV_ADD|EV_ONESHOT";
+#ifdef EV_DISPATCH
+            if (evts[i].flags == (EV_ADD|EV_DISPATCH)) flags = "EV_ADD|EV_DISPATCH";
+            if (evts[i].flags == (EV_ADD|EV_DISABLE)) flags = "EV_ADD|EV_DISABLE";
+            if (evts[i].flags == (EV_ENABLE|EV_DISPATCH)) flags = "EV_ENABLE|EV_DISPATCH";
+            if (evts[i].flags == EV_DISABLE) flags = "EV_DISABLE";
+            if (evts[i].flags == (EV_DISABLE|EV_DISPATCH)) flags = "EV_DISABLE|EV_DISABLE";
+#endif
+
+            keventbp += sprintf(keventbp, "%s{%lu, %s, %s}",i > 0 ? ", " : "",
+                                evts[i].ident,
+                                (evts[i].filter == EVFILT_READ
+                                 ? "EVFILT_READ"
+                                 : (evts[i].filter == EVFILT_WRITE
+                                    ? "EVFILT_WRITE"
+                                    : "UNKNOWN")), flags);
+        }
+        keventbp += sprintf(keventbp, "}, %d)", len);
+        DEBUG_PRINT_FD("%s", ps, fd, keventb);
+        errno = saved_errno;
+    }
+#endif
+    if (res < 0) {
+        if (op != ERTS_POLL_OP_DEL) {
+#ifdef EV_RECEIPT
+            struct kevent receipt_evts[2];
+            len = 0;
+            ERTS_EV_SET(&evts[len++], fd, EVFILT_WRITE, EV_DELETE|EV_RECEIPT, (void *) 0);
+            ERTS_EV_SET(&evts[len++], fd, EVFILT_READ, EV_DELETE|EV_RECEIPT, (void *) 0);
+            do {
+                res = kevent(ps->kp_fd, evts, len, receipt_evts, 2, &ts);
+            } while (res < 0 && errno == EINTR);
 #else
-    erts_printf("Doing update on fd=%d\n", fd);
+            ERTS_EV_SET(&evts[0], fd, EVFILT_WRITE, EV_DELETE, (void *) 0);
+            do {
+                res = kevent(ps->kp_fd, evts, 1, NULL, 0, &ts);
+            } while (res < 0 && errno == EINTR);
+            ERTS_EV_SET(&evts[0], fd, EVFILT_READ, EV_DELETE, (void *) 0);
+            do {
+                res = kevent(ps->kp_fd, evts, 1, NULL, 0, &ts);
+            } while (res < 0 && errno == EINTR);
+#endif
+            if (op == ERTS_POLL_OP_ADD)
+                erts_atomic_dec_nob(&ps->no_of_user_fds);
+            events = ERTS_POLL_EV_NVAL;
+        } else
+            events = 0;
+    }
+    return events;
+}
+
+#endif /* ERTS_POLL_USE_KQUEUE */
+
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
+
+static ERTS_INLINE void
+init_batch_update(ErtsPollSet *ps, int len)
+{
+#if ERTS_POLL_USE_DEVPOLL
+    ASSERT(ps->poll_fds == NULL);
+    ps->poll_fds = erts_alloc(ERTS_ALC_T_TMP, sizeof(struct pollfd) * len);
+    ps->poll_fds_ix = 0;
 #endif
+}
+
+static ERTS_INLINE void
+write_batch_update(ErtsPollSet *ps)
+{
+#if ERTS_POLL_USE_DEVPOLL
+    ssize_t wres;
+    char *buf = (char *) ps->poll_fds;
+    size_t buf_size = sizeof(struct pollfd)*ps->poll_fds_ix;
+
+    while (1) {
+	wres = write(ps->kp_fd, (void *) buf, buf_size);
+	if (wres < 0) {
+	    if (errno == EINTR)
+		continue;
+	    fatal_error("%s:%d:write_batch_buf(): "
+			"Failed to write to /dev/poll: "
+			"%s (%d)\n",
+			__FILE__, __LINE__,
+			erl_errno_id(errno), errno);
+	}
+#if ERTS_POLL_DEBUG_PRINT
+        {
+            int saved_errno = errno, i;
+            char devpollb[2048], *devpollbp = devpollb;
+            devpollbp += sprintf(devpollbp, "%d = devpoll(%d, {", wres, ps->kp_fd);
+            for (i = 0; i < wres / sizeof(struct pollfd); i++) {
+                if (devpollbp == devpollb)
+                    devpollbp += sprintf(devpollbp, "%d = devpoll(%d, {", wres, ps->kp_fd);
+                devpollbp += sprintf(devpollbp, "%s{fd = %d, events = %s}",
+                                     i > 0 ? ", " : "",
+                                     ps->poll_fds[i].fd,
+                                     ev2str(ps->poll_fds[i].events));
+                if (devpollbp - devpollb > 512) {
+                    devpollbp += sprintf(devpollbp, "}, %d)", ps->poll_fds_ix);
+                    DEBUG_PRINT("%s", ps, devpollb);
+                    devpollbp = devpollb;
+                }
+            }
+            devpollbp += sprintf(devpollbp, "}, %d)", ps->poll_fds_ix);
+            DEBUG_PRINT("%s", ps, devpollb);
+            errno = saved_errno;
+        }
 #endif
 
-    ASSERT(fd < ps->fds_status_len);
-#if ERTS_POLL_USE_FALLBACK
-    ASSERT(ps->fds_status[fd].used_events
-	   ? (ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK)
-	   : (ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_USEFLBCK));
+	buf_size -= wres;
+	if (buf_size <= 0)
+	    break;
+	buf += wres;
+    }
+
+    if (buf_size < 0) {
+	fatal_error("%s:%d:write_devpoll_buf(): Internal error\n",
+		    __FILE__, __LINE__);
+    }
+    erts_free(ERTS_ALC_T_TMP, ps->poll_fds);
+    ps->poll_fds = NULL;
 #endif
+}
 
-    if (!need_update(ps, fd))
-	return 0;
+static ERTS_INLINE int
+need_update(ErtsPollSet *ps, int fd, int *resetp)
+{
+    int reset;
+    ASSERT(fd < ps->fds_status_len);
 
-#if ERTS_POLL_USE_FALLBACK
+    reset = (int) (ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_RST);
     ps->fds_status[fd].flags &= ~ERTS_POLL_FD_FLG_RST;
-#endif
+
+    *resetp = reset;
+
+    if (reset || ps->fds_status[fd].used_events != ps->fds_status[fd].events)
+	return 1;
+
+    return 0;
+}
+
+static int update_pollset(ErtsPollSet *ps, ErtsPollResFd pr[], int fd)
+{
+    int res = 0, reset = 0;
+    ErtsPollEvents events = ps->fds_status[fd].events;
+    ASSERT(fd < ps->fds_status_len);
+
+    if (!need_update(ps, fd, &reset))
+	return res;
 
 #if ERTS_POLL_USE_POLL	/* --- poll -------------------------------- */
-    if (!ps->fds_status[fd].events) {
+    if (!events) {
 	int pix = ps->fds_status[fd].pix;
 	int last_pix;
+
+        if (reset) {
+            /* When a fd has been reset, we tell the caller of erts_poll_wait
+               this by setting the fd as ERTS_POLL_EV_NONE */
+            ERTS_POLL_RES_SET_FD(&pr[res], fd);
+            ERTS_POLL_RES_SET_EVTS(&pr[res], ERTS_POLL_EV_NONE);
+            DEBUG_PRINT_FD("trig %s (poll)", ps, fd, ev2str(ERTS_POLL_EV_NONE));
+            res++;
+        }
+
 	if (pix < 0) {
-#if ERTS_POLL_USE_FALLBACK
-	    ASSERT(!(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK));
-#endif
-	    return -1;
+	    return res;
 	}
-#if ERTS_POLL_USE_FALLBACK
-	ASSERT(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK);
-#endif
 	erts_atomic_dec_nob(&ps->no_of_user_fds);
 	last_pix = --ps->no_poll_fds;
 	if (pix != last_pix) {
@@ -1344,126 +1044,151 @@ static int update_pollset(ErtsPollSet ps, int fd)
 	/* Clear this fd status */
 	ps->fds_status[fd].pix = -1;
 	ps->fds_status[fd].used_events = (ErtsPollEvents) 0;
-#if ERTS_POLL_USE_FALLBACK
-	ps->fds_status[fd].flags &= ~ERTS_POLL_FD_FLG_INFLBCK;
-#endif
+
     }
     else {
 	int pix = ps->fds_status[fd].pix;
 	if (pix < 0) {
-#if ERTS_POLL_USE_FALLBACK
-	    ASSERT(!(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK)
-		    || fd == ps->kp_fd);
-#endif
 	    erts_atomic_inc_nob(&ps->no_of_user_fds);
 	    ps->fds_status[fd].pix = pix = ps->no_poll_fds++;
 	    if (pix >= ps->poll_fds_len)
 		grow_poll_fds(ps, pix);
 	    ps->poll_fds[pix].fd = fd;
 	    ps->fds_status[fd].pix = pix;
-#if ERTS_POLL_USE_FALLBACK
-	    ps->fds_status[fd].flags |= ERTS_POLL_FD_FLG_INFLBCK;
-#endif
 	}
 
-#if ERTS_POLL_USE_FALLBACK
-	ASSERT(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK);
-#endif
-
 	/* Events to be used in next poll */
-	ps->poll_fds[pix].events = ev2pollev(ps->fds_status[fd].events);
+	ps->poll_fds[pix].events = ev2pollev(events);
 	if (ps->poll_fds[pix].revents) {
 	    /* Remove result events that we should not poll for anymore */
 	    ps->poll_fds[pix].revents
 		&= ev2pollev(~(~ps->fds_status[fd].used_events
-			       & ps->fds_status[fd].events));
+			       & events));
 	}
 	/* Save events to be used in next poll */
-	ps->fds_status[fd].used_events = ps->fds_status[fd].events;
+	ps->fds_status[fd].used_events = events;
     }
-    return 0;
+    return res;
 #elif ERTS_POLL_USE_SELECT	/* --- select ------------------------------ */
-    {
-	ErtsPollEvents events = ps->fds_status[fd].events;
+    if (!events) {
+
+        if (reset) {
+            /* When a fd has been reset, we tell the caller of erts_poll_wait
+               this by setting the fd as ERTS_POLL_EV_NONE */
+            ERTS_POLL_RES_SET_FD(&pr[res], fd);
+            ERTS_POLL_RES_SET_EVTS(&pr[res], ERTS_POLL_EV_NONE);
+            DEBUG_PRINT_FD("trig %s (select)", ps, fd, ev2str(ERTS_POLL_EV_NONE));
+            res++;
+        }
+
+        ERTS_FD_CLR(fd, &ps->input_fds);
+        ERTS_FD_CLR(fd, &ps->output_fds);
+
+        if (ps->fds_status[fd].used_events) {
+            erts_atomic_dec_nob(&ps->no_of_user_fds);
+            ps->fds_status[fd].used_events = (ErtsPollEvents) 0;
+        }
+
+        if (fd == ps->max_fd) {
+            int max = ps->max_fd;
+            for (max = ps->max_fd; max >= 0; max--)
+                if (ps->fds_status[max].used_events)
+                    break;
+            ps->max_fd = max;
+        }
+
+    } else {
+
 	ensure_select_fds(fd, &ps->input_fds, &ps->output_fds);
-	if ((ERTS_POLL_EV_IN & events)
-	    != (ERTS_POLL_EV_IN & ps->fds_status[fd].used_events)) {
-	    if (ERTS_POLL_EV_IN & events) {
-		ERTS_FD_SET(fd, &ps->input_fds);
-	    }
-	    else {
-		ERTS_FD_CLR(fd, &ps->input_fds);
-	    }
-	}
-	if ((ERTS_POLL_EV_OUT & events)
-	    != (ERTS_POLL_EV_OUT & ps->fds_status[fd].used_events)) {
-	    if (ERTS_POLL_EV_OUT & events) {
-		ERTS_FD_SET(fd, &ps->output_fds);
-	    }
-	    else {
-		ERTS_FD_CLR(fd, &ps->output_fds);
-	    }
-	}
 
-	if (!ps->fds_status[fd].used_events) {
-	    ASSERT(events);
-	    erts_atomic_inc_nob(&ps->no_of_user_fds);
-#if ERTS_POLL_USE_FALLBACK
-	    ps->no_select_fds++;
-	    ps->fds_status[fd].flags |= ERTS_POLL_FD_FLG_INFLBCK;
-#endif
-	}
-	else if (!events) {
-	    ASSERT(ps->fds_status[fd].used_events);
-	    erts_atomic_dec_nob(&ps->no_of_user_fds);
-	    ps->fds_status[fd].events = events;
-#if ERTS_POLL_USE_FALLBACK
-	    ps->no_select_fds--;
-	    ps->fds_status[fd].flags &= ~ERTS_POLL_FD_FLG_INFLBCK;
-#endif
-	}
+        if (!ps->fds_status[fd].used_events)
+            erts_atomic_inc_nob(&ps->no_of_user_fds);
+
+        if (events & ERTS_POLL_EV_IN)
+            ERTS_FD_SET(fd, &ps->input_fds);
+        else
+            ERTS_FD_CLR(fd, &ps->input_fds);
+
+        if (events & ERTS_POLL_EV_OUT)
+            ERTS_FD_SET(fd, &ps->output_fds);
+        else
+            ERTS_FD_CLR(fd, &ps->output_fds);
 
 	ps->fds_status[fd].used_events = events;
 
-	if (events && fd > ps->max_fd)
-	    ps->max_fd = fd;
-	else if (!events && fd == ps->max_fd) {
-	    int max = ps->max_fd;
-	    for (max = ps->max_fd; max >= 0; max--)
-		if (ps->fds_status[max].used_events)
-		    break;
-	    ps->max_fd = max;
-	}
+        if (fd > ps->max_fd)
+            ps->max_fd = fd;
     }
-    return 0;
-#endif
-}
 
-#endif /* ERTS_POLL_USE_POLL || ERTS_POLL_USE_SELECT || ERTS_POLL_USE_FALLBACK */
+    return res;
+#elif ERTS_POLL_USE_DEVPOLL
+
+    if (!events) {
 
+        if (reset) {
+            /* When a fd has been reset, we tell the caller of erts_poll_wait
+               this by setting the fd as ERTS_POLL_EV_NONE */
+            ERTS_POLL_RES_SET_FD(&pr[res], fd);
+            ERTS_POLL_RES_SET_EVTS(&pr[res], ERTS_POLL_EV_NONE);
+            DEBUG_PRINT_FD("trig %s (devpoll)", ps, fd, ev2str(ERTS_POLL_EV_NONE));
+            res++;
+        }
 
-static void
-handle_update_requests(ErtsPollSet ps)
-{
-    ErtsPollSetUpdateRequestsBlock *urqbp = &ps->update_requests;
-#if ERTS_POLL_USE_BATCH_UPDATE_POLLSET
-    ErtsPollBatchBuf bb;
-    setup_batch_buf(ps, &bb);
+        ps->poll_fds[ps->poll_fds_ix].fd = fd;
+        ps->poll_fds[ps->poll_fds_ix].revents = 0;
+        ps->poll_fds[ps->poll_fds_ix++].events = POLLREMOVE;
+
+        if (ps->fds_status[fd].used_events) {
+            erts_atomic_dec_nob(&ps->no_of_user_fds);
+            ps->fds_status[fd].used_events = 0;
+        }
+
+    } else {
+        if (!ps->fds_status[fd].used_events) {
+            erts_atomic_inc_nob(&ps->no_of_user_fds);
+        }
+        ps->poll_fds[ps->poll_fds_ix].fd = fd;
+        ps->poll_fds[ps->poll_fds_ix].revents = 0;
+        ps->poll_fds[ps->poll_fds_ix++].events = ERTS_POLL_EV_E2N(events);
+        ps->fds_status[fd].used_events = ps->fds_status[fd].events;
+    }
+
+    return res;
 #endif
+}
+
+static int
+handle_update_requests(ErtsPollSet *ps, ErtsPollResFd pr[], int no_fds)
+{
+    int res = 0;
+    ErtsPollSetUpdateRequestsBlock *urqbp = ps->curr_upd_req_block;
 
     while (urqbp) {
 	ErtsPollSetUpdateRequestsBlock *free_urqbp = urqbp;
 	int i;
 	int len = urqbp->len;
+
+        init_batch_update(ps, len);
+
 	for (i = 0; i < len; i++) {
 	    int fd = urqbp->fds[i];
 	    ASSERT(fd < ps->fds_status_len);
-	    ps->fds_status[fd].flags &= ~ERTS_POLL_FD_FLG_INURQ;
-#if ERTS_POLL_USE_BATCH_UPDATE_POLLSET
-	    batch_update_pollset(ps, fd, &bb);
-#else
-	    update_pollset(ps, fd);
-#endif
+            ASSERT(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INURQ);
+
+            /* We have run out of PollResFd slots to put results in,
+               so we yield here and return later for more. */
+            if (res == no_fds && pr != NULL) {
+                memmove(urqbp->fds, urqbp->fds+i, sizeof(int) * (len - i));
+                urqbp->len -= i;
+                ps->curr_upd_req_block = urqbp;
+                write_batch_update(ps);
+                return res;
+            }
+
+            if (ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INURQ) {
+                ps->fds_status[fd].flags &= ~ERTS_POLL_FD_FLG_INURQ;
+                res += update_pollset(ps, pr + res, fd);
+            }
 	}
 
 	free_urqbp = urqbp;
@@ -1471,12 +1196,9 @@ handle_update_requests(ErtsPollSet ps)
 
 	free_update_requests_block(ps, free_urqbp);
 
-    }
+        write_batch_update(ps);
 
-#if ERTS_POLL_USE_BATCH_UPDATE_POLLSET
-    if (bb.len)
-	write_batch_buf(ps, &bb);
-#endif
+    }
 
     ps->curr_upd_req_block = &ps->update_requests;
 
@@ -1485,16 +1207,19 @@ handle_update_requests(ErtsPollSet ps)
 #endif
 
     ERTS_POLLSET_UNSET_HAVE_UPDATE_REQUESTS(ps);
+    return res;
 }
 
+#endif /* !ERTS_POLL_USE_CONCURRENT_UPDATE */
 
 static ERTS_INLINE ErtsPollEvents
-poll_control(ErtsPollSet ps, int fd, ErtsPollEvents events, int on, int *do_wake)
+poll_control(ErtsPollSet *ps, int fd, ErtsPollOp op,
+             ErtsPollEvents events, int *do_wake)
 {
     ErtsPollEvents new_events;
 
     if (fd < ps->internal_fd_limit || fd >= max_fds) {
-	if (fd < 0) {
+	if (fd < 0 || fd >= max_fds) {
 	    new_events = ERTS_POLL_EV_ERR;
 	    goto done;
 	}
@@ -1504,115 +1229,55 @@ poll_control(ErtsPollSet ps, int fd, ErtsPollEvents events, int on, int *do_wake
 	    goto done;
 	}
 #endif
+#if ERTS_POLL_USE_WAKEUP_PIPE
 	if (fd == ps->wake_fds[0] || fd == ps->wake_fds[1]) {
 	    new_events = ERTS_POLL_EV_NVAL;
 	    goto done;
 	}
-#if ERTS_POLL_USE_TIMERFD
-	if (fd == ps->timer_fd) {
-	    new_events = ERTS_POLL_EV_NVAL;
-	    goto done;
-	}
 #endif
     }
 
+#if ERTS_POLL_USE_CONCURRENT_UPDATE
+
+    new_events = update_pollset(ps, fd, op, events);
+
+#else /* !ERTS_POLL_USE_CONCURRENT_UPDATE */
     if (fd >= ps->fds_status_len)
 	grow_fds_status(ps, fd);
 
     ASSERT(fd < ps->fds_status_len);
 
-    new_events = ps->fds_status[fd].events;
-
-    if (events == 0) {
-	*do_wake = 0;
-	goto done;
-    }
-
-    if (on)
-	new_events |= events;
-    else
-	new_events &= ~events;
-
-    if (new_events == (ErtsPollEvents) 0) {
-	ps->fds_status[fd].flags |= ERTS_POLL_FD_FLG_RST;
-#if ERTS_POLL_USE_FALLBACK
-	ps->fds_status[fd].flags &= ~ERTS_POLL_FD_FLG_USEFLBCK;
-#endif
-    }
-
-    ps->fds_status[fd].events = new_events;
-
-    if (new_events == ps->fds_status[fd].used_events
-	&& !(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_RST)
-	) {
-	*do_wake = 0;
-	goto done;
-    }
-
-
-#if ERTS_POLL_USE_CONCURRENT_UPDATE
-    if (ERTS_POLLSET_IS_POLLED(ps)) {
-	int update_fallback = 0;
-	conc_update_pollset(ps, fd, &update_fallback);
-	if (!update_fallback) {
-	    *do_wake = 0; /* no need to wake kernel poller */
-	    goto done;
-	}
+    if (op == ERTS_POLL_OP_DEL) {
+        ps->fds_status[fd].flags |= ERTS_POLL_FD_FLG_RST;
+        ps->fds_status[fd].events = 0;
+        *do_wake = 1;
+    } else if (op == ERTS_POLL_OP_ADD) {
+        ASSERT(ps->fds_status[fd].events == 0);
+        ps->fds_status[fd].events = events;
+        *do_wake = 1;
+    } else {
+        ASSERT(op == ERTS_POLL_OP_MOD);
+        ps->fds_status[fd].events = events;
+        *do_wake = 1;
     }
-#endif
+    new_events = ps->fds_status[fd].events;
 
     enqueue_update_request(ps, fd);
-	
-    /*
-     * If new events have been added, we need to wake up the
-     * polling thread, but if events have been removed we don't.
-     */
-    if ((new_events && (ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_RST))
-	|| (~ps->fds_status[fd].used_events & new_events))
-	*do_wake = 1;
 
+#endif /* !ERTS_POLL_USE_CONCURRENT_UPDATE */
 
  done:
-#ifdef ERTS_POLL_DEBUG_PRINT
-     erts_printf("0x%x = poll_control(ps, %d, 0x%x, %s) do_wake=%d\n",
-		 (int) new_events, fd, (int) events, (on ? "on" : "off"), *do_wake);
-#endif
+    DEBUG_PRINT_FD("%s = %s(%p, %d, %s, %s) do_wake=%d",
+                   ps, fd, ev2str(new_events), __FUNCTION__, ps,
+                   fd, op2str(op), ev2str(events), *do_wake);
     return new_events;
 }
 
-void
-ERTS_POLL_EXPORT(erts_poll_controlv)(ErtsPollSet ps,
-				     ErtsPollControlEntry pcev[],
-				     int len)
-{
-    int i;
-    int do_wake;
-    int final_do_wake = 0;
-
-    ERTS_POLLSET_LOCK(ps);
-
-    for (i = 0; i < len; i++) {
-	do_wake = 0;
-	pcev[i].events = poll_control(ps,
-				      pcev[i].fd,
-				      pcev[i].events,
-				      pcev[i].on,
-				      &do_wake);
-	final_do_wake |= do_wake;
-    }
-
-    ERTS_POLLSET_UNLOCK(ps);
-
-    if (final_do_wake)
-	wake_poller(ps, 0, 0);
-
-}
-
 ErtsPollEvents
-ERTS_POLL_EXPORT(erts_poll_control)(ErtsPollSet ps,
+ERTS_POLL_EXPORT(erts_poll_control)(ErtsPollSet *ps,
 				    ErtsSysFdType fd,
+                                    ErtsPollOp op,
 				    ErtsPollEvents events,
-				    int on,
 				    int* do_wake) /* In: Wake up polling thread */
 				                  /* Out: Poller is woken */
 {
@@ -1620,13 +1285,15 @@ ERTS_POLL_EXPORT(erts_poll_control)(ErtsPollSet ps,
 
     ERTS_POLLSET_LOCK(ps);
 
-    res = poll_control(ps, fd, events, on, do_wake);
+    res = poll_control(ps, fd, op, events, do_wake);
 
     ERTS_POLLSET_UNLOCK(ps);
 
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     if (*do_wake) {
-	wake_poller(ps, 0, 0);
+	wake_poller(ps, 0);
     }
+#endif
 
     return res;
 }
@@ -1638,180 +1305,64 @@ ERTS_POLL_EXPORT(erts_poll_control)(ErtsPollSet ps,
 #if ERTS_POLL_USE_KERNEL_POLL
 
 static ERTS_INLINE int
-save_kp_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res, int chk_fds_res)
+ERTS_POLL_EXPORT(save_result)(ErtsPollSet *ps, ErtsPollResFd pr[], int max_res, int chk_fds_res, int ebadf)
 {
-    int res = 0;
-    int i;
-    int n = chk_fds_res < max_res ? chk_fds_res : max_res;
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE || ERTS_POLL_DEBUG_PRINT || ERTS_POLL_USE_WAKEUP_PIPE
+    int n = chk_fds_res < max_res ? chk_fds_res : max_res, i;
+    int res = n;
+#if ERTS_POLL_USE_WAKEUP_PIPE
     int wake_fd = ps->wake_fds[0];
-#if ERTS_POLL_USE_TIMERFD
-    int timer_fd = ps->timer_fd;
 #endif
 
     for (i = 0; i < n; i++) {
-
-#if ERTS_POLL_USE_EPOLL		/* --- epoll ------------------------------- */
-
-	if (ps->res_events[i].events) {
-	    int fd = ps->res_events[i].data.fd;
-	    int ix;
-	    ErtsPollEvents revents;
-	    if (fd == wake_fd) {
-		cleanup_wakeup_pipe(ps);
-		continue;
-	    }
-#if ERTS_POLL_USE_TIMERFD
-            if (fd == timer_fd) {
-                continue;
-            }
-#endif
-	    ASSERT(!(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK));
-	    /* epoll_wait() can repeat the same fd in result array... */
-	    ix = (int) ps->fds_status[fd].res_ev_ix;
-	    ASSERT(ix >= 0);
-	    if (ix >= res || pr[ix].fd != fd) {
-		ix = res;
-		pr[ix].fd = fd;
-		pr[ix].events = (ErtsPollEvents) 0;
-	    }
-
-	    revents = ERTS_POLL_EV_N2E(ps->res_events[i].events);
-	    pr[ix].events |= revents;
-	    if (revents) {
-		if (res == ix) {
-		    ps->fds_status[fd].res_ev_ix = (unsigned short) ix;
-		    res++;
-		}
-	    }
-	}
-
-#elif ERTS_POLL_USE_KQUEUE	/* --- kqueue ------------------------------ */
-
-	struct kevent *ev;
-	int fd;
-	int ix;
-
-	ev = &ps->res_events[i];
-	fd = (int) ev->ident;
-	ASSERT(fd < ps->fds_status_len);
-	ASSERT(!(ps->fds_status[fd].flags & ERTS_POLL_FD_FLG_INFLBCK));
-	ix = (int) ps->fds_status[fd].res_ev_ix;
-
-	ASSERT(ix >= 0);
-	if (ix >= res || pr[ix].fd != fd) {
-	    ix = res;
-	    pr[ix].fd = (int) ev->ident;
-	    pr[ix].events = (ErtsPollEvents) 0;
-	}
-
-	if (ev->filter == EVFILT_READ) {
-	    if (fd == wake_fd) {
-		cleanup_wakeup_pipe(ps);
-		continue;
-	    }
-	    pr[ix].events |= ERTS_POLL_EV_IN;
-	}
-	else if (ev->filter == EVFILT_WRITE)
-	    pr[ix].events |= ERTS_POLL_EV_OUT;
-	if (ev->flags & (EV_ERROR|EV_EOF)) {
-	    if ((ev->flags & EV_ERROR) && (((int) ev->data) == EBADF))
-		pr[ix].events |= ERTS_POLL_EV_NVAL;
-	    else
-		pr[ix].events |= ERTS_POLL_EV_ERR;
-	}
-	if (pr[ix].events) {
-	    if (res == ix) {
-		ps->fds_status[fd].res_ev_ix = (unsigned short) ix;
-		res++;
-	    }
-	}
-
-#elif ERTS_POLL_USE_DEVPOLL	/* --- devpoll ----------------------------- */
-
-	if (ps->res_events[i].revents) {
-	    int fd = ps->res_events[i].fd;
-	    ErtsPollEvents revents;
-	    if (fd == wake_fd) {
-		cleanup_wakeup_pipe(ps);
-		continue;
-	    }
-#if ERTS_POLL_USE_TIMERFD
-	    if (fd == timer_fd) {
-		continue;
-	    }
-#endif
-	    revents = ERTS_POLL_EV_N2E(ps->res_events[i].events);
-	    pr[res].fd = fd;
-	    pr[res].events = revents;
-	    res++;
-	}
-
+        int fd = ERTS_POLL_RES_GET_FD(&pr[i]);
+#ifdef DEBUG_PRINT_MODE
+        ErtsPollEvents evts = ERTS_POLL_RES_GET_EVTS(pr+i);
 #endif
 
-    }
-
-    return res;
-}
-
-#endif /* ERTS_POLL_USE_KERNEL_POLL */
-
-#if ERTS_POLL_USE_FALLBACK
-
-static int
-get_kp_results(ErtsPollSet ps, ErtsPollResFd pr[], int max_res)
-{
-    int res;
+        DEBUG_PRINT_FD("trig %s (%s)", ps, fd,
+                       ev2str(evts),
 #if ERTS_POLL_USE_KQUEUE
-    struct timespec ts = {0, 0};
+                       "kqueue"
+#elif ERTS_POLL_USE_EPOLL
+                       "epoll"
+#else
+                       "/dev/poll"
 #endif
+            );
 
-    if (max_res > ps->res_events_len)
-	grow_res_events(ps, max_res);
-
-    do {
-#if ERTS_POLL_USE_EPOLL
-	res = epoll_wait(ps->kp_fd, ps->res_events, max_res, 0);
-#elif ERTS_POLL_USE_KQUEUE
-	res = kevent(ps->kp_fd, NULL, 0, ps->res_events, max_res, &ts);
+#if ERTS_POLL_USE_WAKEUP_PIPE
+        if (fd == wake_fd) {
+            cleanup_wakeup_pipe(ps);
+            ERTS_POLL_RES_SET_EVTS(&pr[i], ERTS_POLL_EV_NONE);
+            if (n == 1)
+                return 0;
+        }
 #endif
-    } while (res < 0 && errno == EINTR);
-
-    if (res < 0) {
-	fatal_error("%s:%d: %s() failed: %s (%d)\n",
-		    __FILE__, __LINE__,
-#if ERTS_POLL_USE_EPOLL
-		    "epoll_wait",
-#elif ERTS_POLL_USE_KQUEUE
-		    "kevent",
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
+        else {
+            /* Reset the events to emulate ONESHOT semantics */
+            ps->fds_status[fd].events = 0;
+            enqueue_update_request(ps, fd);
+        }
 #endif
-		    erl_errno_id(errno), errno);
     }
 
-    return save_kp_result(ps, pr, max_res, res);
+    return res;
+#else
+    ASSERT(chk_fds_res <= max_res);
+    return chk_fds_res;
+#endif
 }
 
-#endif /* ERTS_POLL_USE_FALLBACK */
-
-
+#else /* !ERTS_POLL_USE_KERNEL_POLL */
 
 static ERTS_INLINE int
-save_poll_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res,
-		 int chk_fds_res, int ebadf)
+ERTS_POLL_EXPORT(save_result)(ErtsPollSet *ps, ErtsPollResFd pr[], int max_res, int chk_fds_res, int ebadf)
 {
-#if ERTS_POLL_USE_DEVPOLL
-    return save_kp_result(ps, pr, max_res, chk_fds_res);
-#elif ERTS_POLL_USE_FALLBACK
-    if (!ps->fallback_used)
-	return save_kp_result(ps, pr, max_res, chk_fds_res);
-    else
-#endif /* ERTS_POLL_USE_FALLBACK */
-    {
-
 #if ERTS_POLL_USE_POLL	/* --- poll -------------------------------- */
 	int res = 0;
-#if !ERTS_POLL_USE_FALLBACK
 	int wake_fd = ps->wake_fds[0];
-#endif
 	int i, first_ix, end_ix;
 
 	/*
@@ -1828,23 +1379,30 @@ save_poll_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res,
 		if (ps->poll_fds[i].revents != (short) 0) {
 		    int fd = ps->poll_fds[i].fd;
 		    ErtsPollEvents revents;
-#if ERTS_POLL_USE_FALLBACK
-		    if (fd == ps->kp_fd) {
-			res += get_kp_results(ps, &pr[res], max_res-res);
-			i++;
-			continue;
-		    }
-#else
 		    if (fd == wake_fd) {
 			cleanup_wakeup_pipe(ps);
 			i++;
 			continue;
 		    }
-#endif
 		    revents = pollev2ev(ps->poll_fds[i].revents);
-		    pr[res].fd = fd;
-		    pr[res].events = revents;
+		    ERTS_POLL_RES_SET_FD(&pr[res], fd);
+		    ERTS_POLL_RES_SET_EVTS(&pr[res], revents);
+
+                    /* If an fd returns as error, we may want to check the
+                       update_requests queue to see if it has been reset
+                       before delivering the result?!?! This should allow
+                       the user to do driver_dselect + close without waiting
+                       for stop_select... */
+
+                    DEBUG_PRINT_FD("trig %s (poll)", ps, ERTS_POLL_RES_GET_FD(&pr[res]),
+                                   ev2str(ERTS_POLL_RES_GET_EVTS(&pr[res])));
+
 		    res++;
+
+                    /* Clear the events for this fd in order to mimic
+                       how epoll ONESHOT works */
+                    ps->fds_status[fd].events = 0;
+                    enqueue_update_request(ps, fd);
 		}
 		i++;
 	    }
@@ -1860,9 +1418,7 @@ save_poll_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res,
 
 #elif ERTS_POLL_USE_SELECT	/* --- select ------------------------------ */
 	int res = 0;
-#if !ERTS_POLL_USE_FALLBACK
 	int wake_fd = ps->wake_fds[0];
-#endif
 	int fd, first_fd, end_fd;
 
 	/*
@@ -1875,29 +1431,23 @@ save_poll_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res,
 	if (!ebadf) {
 	    while (1) {
 		while (fd < end_fd && res < max_res) {
-
-		    pr[res].events = (ErtsPollEvents) 0;
+                    ErtsPollEvents events = 0;
 		    if (ERTS_FD_ISSET(fd, &ps->res_input_fds)) {
-#if ERTS_POLL_USE_FALLBACK
-			if (fd == ps->kp_fd) {
-			    res += get_kp_results(ps, &pr[res], max_res-res);
-			    fd++;
-			    continue;
-			}
-#else
 			if (fd == wake_fd) {
 			    cleanup_wakeup_pipe(ps);
 			    fd++;
 			    continue;
 			}
-#endif
-			pr[res].events |= ERTS_POLL_EV_IN;
+			events |= ERTS_POLL_EV_IN;
 		    }
 		    if (ERTS_FD_ISSET(fd, &ps->res_output_fds))
-			pr[res].events |= ERTS_POLL_EV_OUT;
-		    if (pr[res].events) {
-			pr[res].fd = fd;
+			events |= ERTS_POLL_EV_OUT;
+		    if (events) {
+                        ERTS_POLL_RES_SET_FD(&pr[res], fd);
+                        ERTS_POLL_RES_SET_EVTS(&pr[res], events);
 			res++;
+                        ps->fds_status[fd].events = 0;
+                        enqueue_update_request(ps, fd);
 		    }
 		    fd++;
 		}
@@ -1930,7 +1480,7 @@ save_poll_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res,
 			if (ps->fds_status[fd].events & ERTS_POLL_EV_OUT) {
 			    oset = &ps->res_output_fds;
 			    ERTS_FD_ZERO(oset);
-			    ERTS_FD_SET(fd, oset);			
+			    ERTS_FD_SET(fd, oset);
 			}
 			do {
 			    /* Initiate 'tv' each time;
@@ -1939,49 +1489,31 @@ save_poll_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res,
 			    sres = ERTS_SELECT(ps->max_fd+1, iset, oset, NULL, &tv);
 			} while (sres < 0 && errno == EINTR);
 			if (sres < 0) {
-#if ERTS_POLL_USE_FALLBACK
-			    if (fd == ps->kp_fd) {
-				res += get_kp_results(ps,
-						      &pr[res],
-						      max_res-res);
-				fd++;
-				continue;
-			    }
-#else
 			    if (fd == wake_fd) {
 				cleanup_wakeup_pipe(ps);
 				fd++;
 				continue;
 			    }
-#endif
-			    pr[res].fd = fd;
-			    pr[res].events = ERTS_POLL_EV_NVAL;
+                            ERTS_POLL_RES_SET_FD(&pr[res], fd);
+                            ERTS_POLL_RES_SET_EVTS(&pr[res], ERTS_POLL_EV_NVAL);
 			    res++;
 			}
 			else if (sres > 0) {
-			    pr[res].fd = fd;
+                            ErtsPollEvents events = 0;
+                            ERTS_POLL_RES_SET_FD(&pr[res], fd);
 			    if (iset && ERTS_FD_ISSET(fd, iset)) {
-#if ERTS_POLL_USE_FALLBACK
-				if (fd == ps->kp_fd) {
-				    res += get_kp_results(ps,
-							  &pr[res],
-							  max_res-res);
-				    fd++;
-				    continue;
-				}
-#else
 				if (fd == wake_fd) {
 				    cleanup_wakeup_pipe(ps);
 				    fd++;
 				    continue;
 				}
-#endif
-				pr[res].events |= ERTS_POLL_EV_IN;
+				events |= ERTS_POLL_EV_IN;
 			    }
 			    if (oset && ERTS_FD_ISSET(fd, oset)) {
-				pr[res].events |= ERTS_POLL_EV_OUT;
+				events |= ERTS_POLL_EV_OUT;
 			    }
-			    ASSERT(pr[res].events);
+			    ASSERT(events);
+                            ERTS_POLL_RES_SET_EVTS(&pr[res], events);
 			    res++;
 			}
 		    }
@@ -1996,353 +1528,145 @@ save_poll_result(ErtsPollSet ps, ErtsPollResFd pr[], int max_res,
 	}
 	ps->next_sel_fd = fd;
 	return res;
-#endif
-    }
+#endif /* ERTS_POLL_USE_SELECT */
 }
 
-static ERTS_INLINE ErtsMonotonicTime
-get_timeout(ErtsPollSet ps,
-	    int resolution,
-	    ErtsMonotonicTime timeout_time)
-{
-    ErtsMonotonicTime timeout, save_timeout_time;
-
-    if (timeout_time == ERTS_POLL_NO_TIMEOUT) {
-	save_timeout_time = ERTS_MONOTONIC_TIME_MIN;
-	timeout = 0;
-    }
-    else {
-	ErtsMonotonicTime diff_time, current_time;
-	current_time = erts_get_monotonic_time(NULL);
-	diff_time = timeout_time - current_time;
-	if (diff_time <= 0) {
-	    save_timeout_time = ERTS_MONOTONIC_TIME_MIN;
-	    timeout = 0;
-	}
-	else {
-	    save_timeout_time = current_time;
-	    switch (resolution) {
-	    case 1000:
-		/* Round up to nearest even milli second */
-		timeout = ERTS_MONOTONIC_TO_MSEC(diff_time - 1) + 1;
-		if (timeout > (ErtsMonotonicTime) INT_MAX)
-		    timeout = (ErtsMonotonicTime) INT_MAX;
-		save_timeout_time += ERTS_MSEC_TO_MONOTONIC(timeout);
-		timeout -= ERTS_PREMATURE_TIMEOUT(timeout, 1000);
-		break;
-	    case 1000000:
-		/* Round up to nearest even micro second */
-		timeout = ERTS_MONOTONIC_TO_USEC(diff_time - 1) + 1;
-		save_timeout_time += ERTS_USEC_TO_MONOTONIC(timeout);
-		timeout -= ERTS_PREMATURE_TIMEOUT(timeout, 1000*1000);
-		break;
-	    case 1000000000:
-		/* Round up to nearest even nano second */
-		timeout = ERTS_MONOTONIC_TO_NSEC(diff_time - 1) + 1;
-		save_timeout_time += ERTS_NSEC_TO_MONOTONIC(timeout);
-		timeout -= ERTS_PREMATURE_TIMEOUT(timeout, 1000*1000*1000);
-		break;
-	    default:
-		ERTS_INTERNAL_ERROR("Invalid resolution");
-		timeout = 0;
-		save_timeout_time = 0;
-		break;
-	    }
-	}
-    }
-    set_timeout_time(ps, save_timeout_time);
-    return timeout;
-}
-
-#if ERTS_POLL_USE_SELECT
-
-static ERTS_INLINE int
-get_timeout_timeval(ErtsPollSet ps,
-		    SysTimeval *tvp,
-		    ErtsMonotonicTime timeout_time)
-{
-    ErtsMonotonicTime timeout = get_timeout(ps,
-					    1000*1000,
-					    timeout_time);
-
-    if (!timeout) {
-	tvp->tv_sec = 0;
-	tvp->tv_usec = 0;
-
-	return 0;
-    }
-    else {
-	ErtsMonotonicTime sec = timeout/(1000*1000);
-	tvp->tv_sec = sec;
-	tvp->tv_usec = timeout - sec*(1000*1000);
-
-	ASSERT(tvp->tv_sec >= 0);
-	ASSERT(tvp->tv_usec >= 0);
-	ASSERT(tvp->tv_usec < 1000*1000);
-
-	return !0;
-    }
-
-}
-
-#endif
-
-#if ERTS_POLL_USE_KQUEUE || (ERTS_POLL_USE_POLL && defined(HAVE_PPOLL)) || ERTS_POLL_USE_TIMERFD
-
-static ERTS_INLINE int
-get_timeout_timespec(ErtsPollSet ps,
-		     struct timespec *tsp,
-		     ErtsMonotonicTime timeout_time)
-{
-    ErtsMonotonicTime timeout = get_timeout(ps,
-					    1000*1000*1000,
-					    timeout_time);
-
-    if (!timeout) {
-	tsp->tv_sec = 0;
-	tsp->tv_nsec = 0;
-	return 0;
-    }
-    else {
-	ErtsMonotonicTime sec = timeout/(1000*1000*1000);
-	tsp->tv_sec = sec;
-	tsp->tv_nsec = timeout - sec*(1000*1000*1000);
-
-	ASSERT(tsp->tv_sec >= 0);
-	ASSERT(tsp->tv_nsec >= 0);
-	ASSERT(tsp->tv_nsec < 1000*1000*1000);
-
-	return !0;
-    }
-}
-
-#endif
-
-#if ERTS_POLL_USE_TIMERFD
-
-static ERTS_INLINE int
-get_timeout_itimerspec(ErtsPollSet ps,
-                       struct itimerspec *itsp,
-                       ErtsMonotonicTime timeout_time)
-{
-
-    itsp->it_interval.tv_sec = 0;
-    itsp->it_interval.tv_nsec = 0;
-
-    return get_timeout_timespec(ps, &itsp->it_value, timeout_time);
-}
-
-#endif
+#endif /* !ERTS_POLL_USE_KERNEL_POLL */
 
 static ERTS_INLINE int
-check_fd_events(ErtsPollSet ps, ErtsMonotonicTime timeout_time, int max_res)
+check_fd_events(ErtsPollSet *ps, ErtsPollResFd pr[], int do_wait, int max_res)
 {
     int res;
-    ERTS_MSACC_PUSH_STATE_M();
-    if (erts_atomic_read_nob(&ps->no_of_user_fds) == 0
-	&& timeout_time == ERTS_POLL_NO_TIMEOUT) {
-	/* Nothing to poll and zero timeout; done... */
-	return 0;
-    }
-    else {
-	int timeout;
-#if ERTS_POLL_USE_FALLBACK
-	if (!(ps->fallback_used = ERTS_POLL_NEED_FALLBACK(ps))) {
-
-#if ERTS_POLL_USE_EPOLL		/* --- epoll ------------------------------- */
-	    if (max_res > ps->res_events_len)
-		grow_res_events(ps, max_res);
-#if ERTS_POLL_USE_TIMERFD
-            {
-                struct itimerspec its;
-                timeout = get_timeout_itimerspec(ps, &its, timeout_time);
-                if (timeout) {
-                    erts_thr_progress_prepare_wait(NULL);
-                    ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP);
-                    timerfd_set(ps, &its);
-                    res = epoll_wait(ps->kp_fd, ps->res_events, max_res, -1);
-                    res = timerfd_clear(ps, res, max_res);
-                } else {
-                    res = epoll_wait(ps->kp_fd, ps->res_events, max_res, 0);
-                }
-            }
-#else /* !ERTS_POLL_USE_TIMERFD */
-	    timeout = (int) get_timeout(ps, 1000, timeout_time);
-            if (timeout) {
-		erts_thr_progress_prepare_wait(NULL);
-                ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP);
-            }
-	    res = epoll_wait(ps->kp_fd, ps->res_events, max_res, timeout);
-#endif /* !ERTS_POLL_USE_TIMERFD */
-#elif ERTS_POLL_USE_KQUEUE	/* --- kqueue ------------------------------ */
-	    struct timespec ts;
-	    if (max_res > ps->res_events_len)
-		grow_res_events(ps, max_res);
-	    timeout = get_timeout_timespec(ps, &ts, timeout_time);
-            if (timeout) {
-		erts_thr_progress_prepare_wait(NULL);
-		ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP);
-            }
-	    res = kevent(ps->kp_fd, NULL, 0, ps->res_events, max_res, &ts);
-#endif				/* ----------------------------------------- */
-	}
-	else /* use fallback (i.e. poll() or select()) */
-#endif /* ERTS_POLL_USE_FALLBACK */
-	{
+    int timeout = do_wait ? -1 : 0;
+    DEBUG_PRINT_WAIT("Entering check_fd_events(), do_wait=%d", ps, do_wait);
+    {
+#if ERTS_POLL_USE_EPOLL                /* --- epoll ------------------------------- */
+        res = epoll_wait(ps->kp_fd, pr, max_res, timeout);
+
+#elif ERTS_POLL_USE_KQUEUE     /* --- kqueue ------------------------------ */
+        struct timespec ts = {0, 0};
+        struct timespec *tsp = timeout ? NULL : &ts;
+        res = kevent(ps->kp_fd, NULL, 0, pr, max_res, tsp);
+#elif ERTS_POLL_USE_DEVPOLL	/* --- devpoll ----------------------------- */
+        /*
+         * The ioctl() will fail with EINVAL on Solaris 10 if dp_nfds
+         * is set too high. dp_nfds should not be set greater than
+         * the maximum number of file descriptors in the poll set.
+         */
+        struct dvpoll poll_res;
+        int nfds = (int) erts_atomic_read_nob(&ps->no_of_user_fds) + 1 /* wakeup pipe */;
+        poll_res.dp_nfds = nfds < max_res ? nfds : max_res;
+        poll_res.dp_fds = pr;
+        poll_res.dp_timeout = timeout;
+        res = ioctl(ps->kp_fd, DP_POLL, &poll_res);
 
-#if ERTS_POLL_USE_DEVPOLL	/* --- devpoll ----------------------------- */
-	    /*
-	     * The ioctl() will fail with EINVAL on Solaris 10 if dp_nfds
-	     * is set too high. dp_nfds should not be set greater than
-	     * the maximum number of file descriptors in the poll set.
-	     */
-	    struct dvpoll poll_res;
-	    int nfds = (int) erts_atomic_read_nob(&ps->no_of_user_fds);
-	    nfds++; /* Wakeup pipe */
-	    timeout = (int) get_timeout(ps, 1000, timeout_time);
-	    poll_res.dp_nfds = nfds < max_res ? nfds : max_res;
-	    if (poll_res.dp_nfds > ps->res_events_len)
-		grow_res_events(ps, poll_res.dp_nfds);
-	    poll_res.dp_fds = ps->res_events;
-	    if (timeout) {
-		erts_thr_progress_prepare_wait(NULL);
-                ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP);
-            }
-	    poll_res.dp_timeout = timeout;
-	    res = ioctl(ps->kp_fd, DP_POLL, &poll_res);
-#elif ERTS_POLL_USE_POLL && defined(HAVE_PPOLL)	/* --- ppoll ---------------- */
-            struct timespec ts;
-	    timeout = get_timeout_timespec(ps, &ts, timeout_time);
-            if (timeout) {
-		erts_thr_progress_prepare_wait(NULL);
-		ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP);
-            }
-            res = ppoll(ps->poll_fds, ps->no_poll_fds, &ts, NULL);
 #elif ERTS_POLL_USE_POLL        /* --- poll --------------------------------- */
-	    timeout = (int) get_timeout(ps, 1000, timeout_time);
 
-	    if (timeout) {
-		erts_thr_progress_prepare_wait(NULL);
-		ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP);
-            }
-	    res = poll(ps->poll_fds, ps->no_poll_fds, timeout);
+        res = poll(ps->poll_fds, ps->no_poll_fds, timeout);
+
 #elif ERTS_POLL_USE_SELECT	/* --- select ------------------------------ */
-	    SysTimeval to;
-	    timeout = get_timeout_timeval(ps, &to, timeout_time);
+        SysTimeval tv = {0, 0};
+        SysTimeval *tvp = timeout ? NULL : &tv;
 
-	    ERTS_FD_COPY(&ps->input_fds, &ps->res_input_fds);
-	    ERTS_FD_COPY(&ps->output_fds, &ps->res_output_fds);
+        ERTS_FD_COPY(&ps->input_fds, &ps->res_input_fds);
+        ERTS_FD_COPY(&ps->output_fds, &ps->res_output_fds);
 
-	    if (timeout) {
-		erts_thr_progress_prepare_wait(NULL);
-		ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP);
-	    }
-	    res = ERTS_SELECT(ps->max_fd + 1,
-			      &ps->res_input_fds,
-			      &ps->res_output_fds,
-			      NULL,
-			      &to);
-	    if (timeout) {
-		erts_thr_progress_finalize_wait(NULL);
-		ERTS_MSACC_POP_STATE_M();
-	    }
-	    if (res < 0
-		&& errno == EBADF
-		&& ERTS_POLLSET_HAVE_UPDATE_REQUESTS(ps)) {
-		/*
-		 * This may have happened because another thread deselected
-		 * a fd in our poll set and then closed it, i.e. the driver
-		 * behaved correctly. We wan't to avoid looking for a bad
-		 * fd, that may even not exist anymore. Therefore, handle
-		 * update requests and try again.
-		 *
-		 * We don't know how much of the timeout is left; therfore,
-		 * we use a zero timeout. If no error occur and no events
-		 * have triggered, we fake an EAGAIN error and let the caller
-		 * restart us.
-		 */
-		to.tv_sec = 0;
-		to.tv_usec = 0;
-		ERTS_POLLSET_LOCK(ps);
-		handle_update_requests(ps);
-		ERTS_POLLSET_UNLOCK(ps);
-		res = ERTS_SELECT(ps->max_fd + 1,
-				  &ps->res_input_fds,
-				  &ps->res_output_fds,
-				  NULL,
-				  &to);
-		if (res == 0) {
-		    errno = EAGAIN;
-		    res = -1;
-		}
-	    }
-	    return res;
+        res = ERTS_SELECT(ps->max_fd + 1,
+                          &ps->res_input_fds,
+                          &ps->res_output_fds,
+                          NULL,
+                          tvp);
 #endif				/* ----------------------------------------- */
-	}
-	if (timeout) {
-	    erts_thr_progress_finalize_wait(NULL);
-	    ERTS_MSACC_POP_STATE_M();
-	}
-	return res;
     }
+    DEBUG_PRINT_WAIT("Leaving check_fd_events(), res=%d", ps, res);
+    return res;
 }
 
 int
-ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet ps,
+ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet *ps,
 				 ErtsPollResFd pr[],
-				 int *len,
-				 ErtsMonotonicTime timeout_time)
+				 int *len)
 {
-    ErtsMonotonicTime to;
-    int res, no_fds;
+    int res, no_fds, used_fds = 0;
     int ebadf = 0;
+    int do_wait;
     int ps_locked = 0;
+    ERTS_MSACC_DECLARE_CACHE();
 
     no_fds = *len;
-#ifdef ERTS_POLL_MAX_RES
-    if (no_fds >= ERTS_POLL_MAX_RES)
-	no_fds = ERTS_POLL_MAX_RES;
-#endif
-
     *len = 0;
+    ASSERT(no_fds > 0);
 
-#ifdef ERTS_POLL_DEBUG_PRINT
-    erts_printf("Entering erts_poll_wait(), timeout_time=%bps\n",
-		timeout_time);
-#endif
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
+    if (ERTS_POLLSET_HAVE_UPDATE_REQUESTS(ps)) {
+	ERTS_POLLSET_LOCK(ps);
+	used_fds = handle_update_requests(ps, pr, no_fds);
+	ERTS_POLLSET_UNLOCK(ps);
 
-    if (ERTS_POLLSET_SET_POLLED_CHK(ps)) {
-	res = EINVAL; /* Another thread is in erts_poll_wait()
-			 on this pollset... */
-	goto done;
+        if (used_fds == no_fds) {
+            *len = used_fds;
+            return 0;
+        }
     }
+#endif
 
-    to = (is_woken(ps)
-	  ? ERTS_POLL_NO_TIMEOUT /* Use zero timeout */
-	  : timeout_time);
+    do_wait = !is_woken(ps) && used_fds == 0;
 
-    if (ERTS_POLLSET_HAVE_UPDATE_REQUESTS(ps)) {
-	ERTS_POLLSET_LOCK(ps);
-	handle_update_requests(ps);
-	ERTS_POLLSET_UNLOCK(ps);
+    DEBUG_PRINT_WAIT("Entering %s(), do_wait=%d", ps, __FUNCTION__, do_wait);
+
+    if (do_wait) {
+        erts_thr_progress_prepare_wait(NULL);
+        ERTS_MSACC_SET_STATE_CACHED(ERTS_MSACC_STATE_SLEEP);
     }
 
     while (1) {
-	res = check_fd_events(ps, to, no_fds);
+	res = check_fd_events(ps, pr + used_fds, do_wait, no_fds - used_fds);
+
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
+        if (res < 0
+            && errno == EBADF
+            && ERTS_POLLSET_HAVE_UPDATE_REQUESTS(ps)) {
+            /*
+             * This may have happened because another thread deselected
+             * a fd in our poll set and then closed it, i.e. the driver
+             * behaved correctly. We wan't to avoid looking for a bad
+             * fd, that may even not exist anymore. Therefore, handle
+             * update requests and try again. This behaviour should only
+             * happen when using SELECT as the polling mechanism.
+             */
+            ERTS_POLLSET_LOCK(ps);
+            used_fds += handle_update_requests(ps, pr + used_fds, no_fds - used_fds);
+            if (used_fds == no_fds) {
+                *len = used_fds;
+                ERTS_POLLSET_UNLOCK(ps);
+                return 0;
+            }
+            res = check_fd_events(ps, pr + used_fds, 0, no_fds - used_fds);
+            /* Keep the lock over the non-blocking poll in order to not
+               get any nasty races happening. */
+            ERTS_POLLSET_UNLOCK(ps);
+            if (res == 0) {
+                errno = EAGAIN;
+                res = -1;
+            }
+        }
+#endif
+
 	if (res != 0)
 	    break;
-	if (to == ERTS_POLL_NO_TIMEOUT)
-	    break;
-	if (erts_get_monotonic_time(NULL) >= timeout_time)
-	    break;
+        if (!do_wait)
+            break;
+    }
+
+    if (do_wait) {
+        erts_thr_progress_finalize_wait(NULL);
+        ERTS_MSACC_UPDATE_CACHE();
+        ERTS_MSACC_SET_STATE_CACHED(ERTS_MSACC_STATE_CHECK_IO);
     }
 
     woke_up(ps);
 
-    if (res == 0) {
-	res = ETIMEDOUT;
-    }
-    else if (res < 0) {
+    if (res < 0) {
 #if ERTS_POLL_USE_SELECT
 	if (errno == EBADF) {
 	    ebadf = 1;
@@ -2359,26 +1683,21 @@ ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet ps,
 	ps_locked = 1;
 	ERTS_POLLSET_LOCK(ps);
 
-	no_fds = save_poll_result(ps, pr, no_fds, res, ebadf);
+	used_fds += ERTS_POLL_EXPORT(save_result)(ps, pr + used_fds, no_fds - used_fds, res, ebadf);
 
 #ifdef HARD_DEBUG
-	check_poll_result(pr, no_fds);
+	check_poll_result(pr, used_fds);
 #endif
 
-	res = (no_fds == 0 ? (is_interrupted_reset(ps) ? EINTR : EAGAIN) : 0);
-	*len = no_fds;
+	res = (used_fds == 0 ? (is_interrupted_reset(ps) ? EINTR : EAGAIN) : 0);
+	*len = used_fds;
     }
 
     if (ps_locked)
 	ERTS_POLLSET_UNLOCK(ps);
-    ERTS_POLLSET_UNSET_POLLED(ps);
 
- done:
-    set_timeout_time(ps, ERTS_MONOTONIC_TIME_MAX);
-#ifdef ERTS_POLL_DEBUG_PRINT
-    erts_printf("Leaving %s = erts_poll_wait()\n",
-		 res == 0 ? "0" : erl_errno_id(res));
-#endif
+    DEBUG_PRINT_WAIT("Leaving %s = %s(len = %d)", ps,
+                     res == 0 ? "0" : erl_errno_id(res), __FUNCTION__, *len);
 
     return res;
 }
@@ -2388,40 +1707,14 @@ ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet ps,
  */
 
 void
-ERTS_POLL_EXPORT(erts_poll_interrupt)(ErtsPollSet ps, int set)
+ERTS_POLL_EXPORT(erts_poll_interrupt)(ErtsPollSet *ps, int set)
 {
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     if (!set)
 	reset_wakeup_state(ps);
     else
-	wake_poller(ps, 1, 0);
-}
-
-
-/*
- * erts_poll_interrupt_timed():
- *   If 'set' != 0, interrupt thread blocked in erts_poll_wait() if it
- * is not guaranteed that it will timeout before 'msec' milli seconds.
- */
-void
-ERTS_POLL_EXPORT(erts_poll_interrupt_timed)(ErtsPollSet ps,
-					    int set,
-					    ErtsMonotonicTime timeout_time)
-{
-    if (!set)
-	reset_wakeup_state(ps);
-    else {
-	ErtsMonotonicTime max_wait_time = get_timeout_time(ps);
-	if (max_wait_time > timeout_time)
-	    wake_poller(ps, 1, 0);
-#ifdef ERTS_POLL_COUNT_AVOIDED_WAKEUPS
-	else {
-	    if (ERTS_POLLSET_IS_POLLED(ps))
-		erts_atomic_inc_nob(&ps->no_avoided_wakeups);
-	    erts_atomic_inc_nob(&ps->no_avoided_interrupts);
-	}
-	erts_atomic_inc_nob(&ps->no_interrupt_timed);
+	wake_poller(ps, 1);
 #endif
-    }
 }
 
 int
@@ -2434,14 +1727,19 @@ ERTS_POLL_EXPORT(erts_poll_max_fds)(void)
  */
 
 void
-ERTS_POLL_EXPORT(erts_poll_init)(void)
+ERTS_POLL_EXPORT(erts_poll_init)(int *concurrent_updates)
 {
-    erts_mtx_init(&pollsets_lock, "pollsets_lock", NIL,
-        ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_IO);
-    pollsets = NULL;
 
     errno = 0;
 
+    if (concurrent_updates) {
+#if ERTS_POLL_USE_CONCURRENT_UPDATE
+        *concurrent_updates = 1;
+#else
+        *concurrent_updates = 0;
+#endif
+    }
+
 #if !defined(NO_SYSCONF)
     max_fds = sysconf(_SC_OPEN_MAX);
 #elif ERTS_POLL_USE_SELECT
@@ -2460,37 +1758,28 @@ ERTS_POLL_EXPORT(erts_poll_init)(void)
 	fatal_error("erts_poll_init(): Failed to get max number of files: %s\n",
 		    erl_errno_id(errno));
 
-#ifdef ERTS_POLL_DEBUG_PRINT
     print_misc_debug_info();
-#endif
 }
 
-ErtsPollSet
-ERTS_POLL_EXPORT(erts_poll_create_pollset)(void)
+ErtsPollSet *
+ERTS_POLL_EXPORT(erts_poll_create_pollset)(int id)
 {
 #if ERTS_POLL_USE_KERNEL_POLL
     int kp_fd;
 #endif
-    ErtsPollSet ps = erts_alloc(ERTS_ALC_T_POLLSET,
-				sizeof(struct ErtsPollSet_));
+    ErtsPollSet *ps = erts_alloc(ERTS_ALC_T_POLLSET,
+				sizeof(struct ERTS_POLL_EXPORT(erts_pollset)));
+    ps->id = id;
     ps->internal_fd_limit = 0;
-    ps->fds_status = NULL;
-    ps->fds_status_len = 0;
     erts_atomic_init_nob(&ps->no_of_user_fds, 0);
 #if ERTS_POLL_USE_KERNEL_POLL
     ps->kp_fd = -1;
 #if ERTS_POLL_USE_EPOLL
     kp_fd = epoll_create(256);
-    ps->res_events_len = 0;
-    ps->res_events = NULL;
 #elif ERTS_POLL_USE_DEVPOLL
     kp_fd = open("/dev/poll", O_RDWR);
-    ps->res_events_len = 0;
-    ps->res_events = NULL;
 #elif ERTS_POLL_USE_KQUEUE
     kp_fd = kqueue();
-    ps->res_events_len = 0;
-    ps->res_events = NULL;
 #endif
     if (kp_fd < 0)
 	fatal_error("erts_poll_create_pollset(): Failed to "
@@ -2504,10 +1793,6 @@ ERTS_POLL_EXPORT(erts_poll_create_pollset)(void)
 		    ": %s (%d)\n",
 		    erl_errno_id(errno), errno);
 #endif /* ERTS_POLL_USE_KERNEL_POLL */
-#if ERTS_POLL_USE_BATCH_UPDATE_POLLSET
-    /* res_events is also used as write buffer */
-    grow_res_events(ps, ERTS_POLL_MIN_BATCH_BUF_SIZE);
-#endif
 #if ERTS_POLL_USE_POLL
     ps->next_poll_fds_ix = 0;
     ps->no_poll_fds = 0;
@@ -2516,9 +1801,6 @@ ERTS_POLL_EXPORT(erts_poll_create_pollset)(void)
 #elif ERTS_POLL_USE_SELECT
     ps->next_sel_fd = 0;
     ps->max_fd = -1;
-#if ERTS_POLL_USE_FALLBACK
-    ps->no_select_fds = 0;
-#endif
 #ifdef _DARWIN_UNLIMITED_SELECT
     ps->input_fds.sz = 0;
     ps->input_fds.ptr = NULL;
@@ -2535,140 +1817,85 @@ ERTS_POLL_EXPORT(erts_poll_create_pollset)(void)
     ERTS_FD_ZERO(&ps->res_output_fds);
 #endif
 #endif
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
+    ps->fds_status = NULL;
+    ps->fds_status_len = 0;
     ps->update_requests.next = NULL;
     ps->update_requests.len = 0;
     ps->curr_upd_req_block = &ps->update_requests;
     erts_atomic32_init_nob(&ps->have_update_requests, 0);
-    erts_atomic32_init_nob(&ps->polled, 0);
     erts_mtx_init(&ps->mtx, "pollset", NIL, ERTS_LOCK_FLAGS_CATEGORY_IO);
-    erts_atomic32_init_nob(&ps->wakeup_state, (erts_aint32_t) 0);
-    create_wakeup_pipe(ps);
-#if ERTS_POLL_USE_TIMERFD
-    create_timerfd(ps);
-#endif
-#if ERTS_POLL_USE_FALLBACK
-    if (kp_fd >= ps->fds_status_len)
-	grow_fds_status(ps, kp_fd);
-    /* Force kernel poll fd into fallback (poll/select) set */
-    ps->fds_status[kp_fd].flags
-	|= ERTS_POLL_FD_FLG_INFLBCK|ERTS_POLL_FD_FLG_USEFLBCK;
-    {
-	int do_wake = 0;
-	ERTS_POLL_EXPORT(erts_poll_control)(ps, kp_fd, ERTS_POLL_EV_IN, 1,
-					    &do_wake);
-    }    
 #endif
 #if ERTS_POLL_USE_KERNEL_POLL
     if (ps->internal_fd_limit <= kp_fd)
 	ps->internal_fd_limit = kp_fd + 1;
     ps->kp_fd = kp_fd;
 #endif
-    init_timeout_time(ps);
-#ifdef ERTS_POLL_COUNT_AVOIDED_WAKEUPS
-    erts_atomic_init_nob(&ps->no_avoided_wakeups, 0);
-    erts_atomic_init_nob(&ps->no_avoided_interrupts, 0);
-    erts_atomic_init_nob(&ps->no_interrupt_timed, 0);
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
+    erts_atomic32_init_nob(&ps->wakeup_state, (erts_aint32_t) 0);
+    create_wakeup_pipe(ps);
+    handle_update_requests(ps, NULL, 0);
+    cleanup_wakeup_pipe(ps);
 #endif
-    handle_update_requests(ps);
-#if ERTS_POLL_USE_FALLBACK
-    ps->fallback_used = 0;
+#if ERTS_POLL_USE_KERNEL_POLL && (defined(__DARWIN__) || defined(__APPLE__) && defined(__MACH__))
+    {
+        /*
+         * Using kqueue on OS X is a mess of brokenness...
+         *
+         * On OS X version older than 15.6 (i.e. OS X El Capitan released in July 2015),
+         * a thread waiting in kevent is not woken if an event is inserted into the kqueue
+         * by another thread and the event becomes ready. However if a new call to kevent
+         * is done by the waiting thread, the new event is found.
+         *
+         * So on effected OS X versions we could trigger the wakeup pipe so that
+         * the waiters will be woken and re-issue the kevent. However...
+         *
+         * On OS X version older then 16 (i.e. OS X Sierra released in September 2016),
+         * running the emulator driver_SUITE smp_select testcase consistently causes a
+         * kernel panic. I don't know why or what events that trigger it. But it seems
+         * like updates of the pollset while another thread is sleeping in it Creates
+         * some kind of race that triggers the kernel panic.
+         *
+         * So to deal with this, the erts configure check what OS X version is run
+         * and only enabled kernel poll on OS X 16 or newer. In addition, if someone
+         * attempts to compile Erlang on OS X 16 and then run it on OS X 15, we do the
+         * run-time check below to disallow this.
+         */
+        int major, minor, build;
+        os_version(&major,&minor,&build);
+        if (major < 16) {
+            erts_fprintf(stderr,"BROKEN KQUEUE!\n"
+                         "Erlang has been compiled with kernel-poll support,\n"
+                         "but this OS X version is known to have kernel bugs\n"
+                         "when using kernel-poll. You have two options:\n"
+                         " 1) update to a newer OS X version (OS X Sierra or newer)\n"
+                         " 2) recompile erlang without kernel-poll support\n");
+            erts_exit(1, "");
+        }
+    }
 #endif
     erts_atomic_set_nob(&ps->no_of_user_fds, 0); /* Don't count wakeup pipe and fallback fd */
 
-    erts_mtx_lock(&pollsets_lock);
-    ps->next = pollsets;
-    pollsets = ps;
-    erts_mtx_unlock(&pollsets_lock);
-
     return ps;
 }
 
-void
-ERTS_POLL_EXPORT(erts_poll_destroy_pollset)(ErtsPollSet ps)
-{
-
-    if (ps->fds_status)
-	erts_free(ERTS_ALC_T_FD_STATUS, (void *) ps->fds_status);
-
-#if ERTS_POLL_USE_EPOLL
-    if (ps->kp_fd >= 0)
-	close(ps->kp_fd);
-    if (ps->res_events)
-	erts_free(ERTS_ALC_T_POLL_RES_EVS, (void *) ps->res_events);
-#elif ERTS_POLL_USE_DEVPOLL
-    if (ps->kp_fd >= 0)
-	close(ps->kp_fd);
-    if (ps->res_events)
-	erts_free(ERTS_ALC_T_POLL_RES_EVS, (void *) ps->res_events);
-#elif ERTS_POLL_USE_POLL
-    if (ps->poll_fds)
-	erts_free(ERTS_ALC_T_POLL_FDS, (void *) ps->poll_fds);
-#elif ERTS_POLL_USE_SELECT
-#ifdef _DARWIN_UNLIMITED_SELECT
-    if (ps->input_fds.ptr)
-	erts_free(ERTS_ALC_T_SELECT_FDS, (void *) ps->input_fds.ptr);
-    if (ps->res_input_fds.ptr)
-	erts_free(ERTS_ALC_T_SELECT_FDS, (void *) ps->res_input_fds.ptr);
-    if (ps->output_fds.ptr)
-	erts_free(ERTS_ALC_T_SELECT_FDS, (void *) ps->output_fds.ptr);
-    if (ps->res_output_fds.ptr)
-	erts_free(ERTS_ALC_T_SELECT_FDS, (void *) ps->res_output_fds.ptr);
-#endif
-#endif
-    {
-	ErtsPollSetUpdateRequestsBlock *urqbp = ps->update_requests.next;
-	while (urqbp) {
-	    ErtsPollSetUpdateRequestsBlock *free_urqbp = urqbp;
-	    urqbp = urqbp->next;
-	    free_update_requests_block(ps, free_urqbp);
-	}
-    }
-    erts_mtx_destroy(&ps->mtx);
-    if (ps->wake_fds[0] >= 0)
-	close(ps->wake_fds[0]);
-    if (ps->wake_fds[1] >= 0)
-	close(ps->wake_fds[1]);
-#if ERTS_POLL_USE_TIMERFD
-    if (ps->timer_fd >= 0)
-        close(ps->timer_fd);
-#endif
-
-    erts_mtx_lock(&pollsets_lock);
-    if (ps == pollsets)
-	pollsets = pollsets->next;
-    else {
-	ErtsPollSet prev_ps;
-	for (prev_ps = pollsets; ps != prev_ps->next; prev_ps = prev_ps->next)
-            ;
-	ASSERT(ps == prev_ps->next);
-	prev_ps->next = ps->next;
-    }
-    erts_mtx_unlock(&pollsets_lock);
-
-    erts_free(ERTS_ALC_T_POLLSET, (void *) ps);
-}
-
 /*
  * --- Info ------------------------------------------------------------------
  */
 
 void
-ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet ps, ErtsPollInfo *pip)
+ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet *ps, ErtsPollInfo *pip)
 {
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     int pending_updates;
+#endif
     Uint size = 0;
 
     ERTS_POLLSET_LOCK(ps);
 
-    size += sizeof(struct ErtsPollSet_);
+    size += sizeof(struct ERTS_POLL_EXPORT(erts_pollset));
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     size += ps->fds_status_len*sizeof(ErtsFdStatus);
-
-#if ERTS_POLL_USE_EPOLL
-    size += ps->res_events_len*sizeof(struct epoll_event);
-#elif ERTS_POLL_USE_DEVPOLL
-    size += ps->res_events_len*sizeof(struct pollfd);
-#elif ERTS_POLL_USE_KQUEUE
-    size += ps->res_events_len*sizeof(struct kevent);
 #endif
 
 #if ERTS_POLL_USE_POLL
@@ -2680,6 +1907,7 @@ ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet ps, ErtsPollInfo *pip)
 #endif
 #endif
 
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     {
 	ErtsPollSetUpdateRequestsBlock *urqbp = ps->update_requests.next;
 	pending_updates = ps->update_requests.len;
@@ -2689,8 +1917,9 @@ ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet ps, ErtsPollInfo *pip)
 	    urqbp = urqbp->next;
 	}
     }
+#endif
 
-    pip->primary = 
+    pip->primary =
 #if ERTS_POLL_USE_KQUEUE
 	"kqueue"
 #elif ERTS_POLL_USE_EPOLL
@@ -2704,17 +1933,7 @@ ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet ps, ErtsPollInfo *pip)
 #endif
 	;
 
-    pip->fallback = 
-#if !ERTS_POLL_USE_FALLBACK
-	NULL
-#elif ERTS_POLL_USE_POLL
-	"poll"
-#elif ERTS_POLL_USE_SELECT
-	"select"
-#endif
-	;
-
-    pip->kernel_poll = 
+    pip->kernel_poll =
 #if !ERTS_POLL_USE_KERNEL_POLL
 	NULL
 #elif ERTS_POLL_USE_KQUEUE
@@ -2729,40 +1948,21 @@ ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet ps, ErtsPollInfo *pip)
     pip->memory_size = size;
 
     pip->poll_set_size = (int) erts_atomic_read_nob(&ps->no_of_user_fds);
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     pip->poll_set_size++; /* Wakeup pipe */
-#if ERTS_POLL_USE_TIMERFD
-    pip->poll_set_size++; /* timerfd */
-#endif
-
-    pip->fallback_poll_set_size =
-#if !ERTS_POLL_USE_FALLBACK
-	0
-#elif ERTS_POLL_USE_POLL
-	ps->no_poll_fds
-#elif ERTS_POLL_USE_SELECT
-	ps->no_select_fds
-#endif
-	;
-
-#if ERTS_POLL_USE_FALLBACK
-    /* If only kp_fd is in fallback poll set we don't use fallback... */
-    if (pip->fallback_poll_set_size == 1)
-	pip->fallback_poll_set_size = 0;
-    else
-	pip->poll_set_size++; /* kp_fd */
 #endif
 
     pip->lazy_updates =
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
 	1
+#else
+	0
+#endif
 	;
 
     pip->pending_updates = 
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
 	pending_updates
-	;
-
-    pip->batch_updates = 
-#if ERTS_POLL_USE_BATCH_UPDATE_POLLSET
-	1
 #else
 	0
 #endif
@@ -2776,13 +1976,23 @@ ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet ps, ErtsPollInfo *pip)
 #endif
 	;
 
-    pip->max_fds = max_fds;
+    pip->is_fallback =
+#if ERTS_POLL_IS_FALLBACK
+        1
+#else
+        0
+#endif
+        ;
 
-#ifdef ERTS_POLL_COUNT_AVOIDED_WAKEUPS
-    pip->no_avoided_wakeups = erts_atomic_read_nob(&ps->no_avoided_wakeups);
-    pip->no_avoided_interrupts = erts_atomic_read_nob(&ps->no_avoided_interrupts);
-    pip->no_interrupt_timed = erts_atomic_read_nob(&ps->no_interrupt_timed);
+    pip->batch_updates =
+#if ERTS_POLL_USE_DEVPOLL
+        1
+#else
+        0
 #endif
+        ;
+
+    pip->max_fds = max_fds;
 
     ERTS_POLLSET_UNLOCK(ps);
 
@@ -2818,35 +2028,60 @@ fatal_error(char *format, ...)
     abort();
 }
 
-static void
-fatal_error_async_signal_safe(char *error_str)
+/*
+ * --- Debug -----------------------------------------------------------------
+ */
+
+#if ERTS_POLL_USE_EPOLL
+uint32_t epoll_events(int kp_fd, int fd)
 {
-    if (ERTS_SOMEONE_IS_CRASH_DUMPING || ERTS_GOT_SIGUSR1) {
-	/* See comment above in fatal_error() */
-	return;
+    /* For epoll we read the information about what is selected upon from the proc fs.*/
+    char fname[30];
+    FILE *f;
+    unsigned int pos, flags, mnt_id;
+    int line = 0;
+    sprintf(fname,"/proc/%d/fdinfo/%d",getpid(), kp_fd);
+    f = fopen(fname,"r");
+    if (!f) {
+        fprintf(stderr,"failed to open file %s, errno = %d\n", fname, errno);
+        ASSERT(0);
+        return 0;
     }
-    if (error_str) {
-	int len = 0;
-	while (error_str[len])
-	    len++;
-	if (len) {
-	    /* async signal safe */
-	    erts_silence_warn_unused_result(write(2, error_str, len));
-	}
+    if (fscanf(f,"pos:\t%x\nflags:\t%x", &pos, &flags) != 2) {
+        fprintf(stderr,"failed to parse file %s, errno = %d\n", fname, errno);
+        ASSERT(0);
+        return 0;
     }
-    abort();
+    if (fscanf(f,"\nmnt_id:\t%x\n", &mnt_id));
+    line += 3;
+    while (!feof(f)) {
+        /* tfd:       10 events: 40000019 data:       180000000a */
+        int ev_fd;
+        uint32_t events;
+        uint64_t data;
+        if (fscanf(f,"tfd:%d events:%x data:%lx\n", &ev_fd, &events, &data) != 3) {
+            fprintf(stderr,"failed to parse file %s on line %d, errno = %d\n", fname,
+                    line,
+                    errno);
+            return 0;
+        }
+        if (fd == ev_fd) {
+            fclose(f);
+            return events;
+        }
+    }
+    fclose(f);
+    return 0;
 }
- 
-/*
- * --- Debug -----------------------------------------------------------------
- */
+#endif
 
 void
-ERTS_POLL_EXPORT(erts_poll_get_selected_events)(ErtsPollSet ps,
+ERTS_POLL_EXPORT(erts_poll_get_selected_events)(ErtsPollSet *ps,
 						ErtsPollEvents ev[],
 						int len)
 {
     int fd;
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     ERTS_POLLSET_LOCK(ps);
     for (fd = 0; fd < len; fd++) {
 	if (fd >= ps->fds_status_len)
@@ -2855,9 +2090,6 @@ ERTS_POLL_EXPORT(erts_poll_get_selected_events)(ErtsPollSet ps,
 	    ev[fd] = ps->fds_status[fd].events;
             if (
                 fd == ps->wake_fds[0] || fd == ps->wake_fds[1] ||
-#if ERTS_POLL_USE_TIMERFD
-                fd == ps->timer_fd ||
-#endif
 #if ERTS_POLL_USE_KERNEL_POLL
                 fd == ps->kp_fd ||
 #endif
@@ -2866,7 +2098,50 @@ ERTS_POLL_EXPORT(erts_poll_get_selected_events)(ErtsPollSet ps,
 	}
     }
     ERTS_POLLSET_UNLOCK(ps);
+#elif ERTS_POLL_USE_EPOLL
 
+    /* For epoll we read the information about what is selected upon from the proc fs.*/
+    char fname[30];
+    FILE *f;
+    unsigned int pos, flags, mnt_id;
+    int line = 0;
+    sprintf(fname,"/proc/%d/fdinfo/%d",getpid(), ps->kp_fd);
+    for (fd = 0; fd < len; fd++)
+        ev[fd] = ERTS_POLL_EV_NONE;
+    f = fopen(fname,"r");
+    if (!f) {
+        fprintf(stderr,"failed to open file %s, errno = %d\n", fname, errno);
+        return;
+    }
+    if (fscanf(f,"pos:\t%x\nflags:\t%x", &pos, &flags) != 2) {
+        fprintf(stderr,"failed to parse file %s, errno = %d\n", fname, errno);
+        ASSERT(0);
+        return;
+    }
+    if (fscanf(f,"\nmnt_id:\t%x\n", &mnt_id));
+    line += 3;
+    while (!feof(f)) {
+        /* tfd:       10 events: 40000019 data:       180000000a */
+        int fd;
+        uint32_t events;
+        uint64_t data;
+        if (fscanf(f,"tfd:%d events:%x data:%lx\n", &fd, &events, &data) != 3) {
+            fprintf(stderr,"failed to parse file %s on line %d, errno = %d\n",
+                    fname, line, errno);
+            ASSERT(0);
+            return;
+        }
+        data &= 0xFFFFFFFF;
+        ASSERT(fd == data);
+        /* Events are the events that are being monitored, which of course include
+           error and hup events, but we are only interested in IN/OUT events */
+        ev[fd] = (ERTS_POLL_EV_IN|ERTS_POLL_EV_OUT) & ERTS_POLL_EV_N2E(events);
+        line++;
+    }
+#else
+    for (fd = 0; fd < len; fd++)
+        ev[fd] = ERTS_POLL_EV_NONE;
+#endif
 }
 
 #ifdef HARD_DEBUG
@@ -2886,10 +2161,10 @@ check_poll_result(ErtsPollResFd pr[], int len)
 }
 
 
-#if ERTS_POLL_USE_DEVPOLL
+#if ERTS_POLL_USE_DEVPOLL && defined(DEBUG)
 
 static void
-check_poll_status(ErtsPollSet ps)
+check_poll_status(ErtsPollSet *ps)
 {
     int i;
     for (i = 0; i < ps->fds_status_len; i++) {
@@ -2921,30 +2196,24 @@ check_poll_status(ErtsPollSet ps)
 #endif /* ERTS_POLL_USE_DEVPOLL */
 #endif /* HARD_DEBUG */
 
-#ifdef ERTS_POLL_DEBUG_PRINT
 static void
 print_misc_debug_info(void)
 {
-    erts_printf("erts_poll using: %s lazy_updates:%s batch_updates:%s\n",
+#if ERTS_POLL_DEBUG_PRINT
+    erts_printf("erts_poll using: %s lazy_updates:%s\n",
 #if ERTS_POLL_USE_KQUEUE
 		"kqueue"
 #elif ERTS_POLL_USE_EPOLL
 		"epoll"
 #elif ERTS_POLL_USE_DEVPOLL
 		"/dev/poll"
-#endif
-#if ERTS_POLL_USE_FALLBACK
-		"-"
-#endif
-#if ERTS_POLL_USE_POLL
+#elif ERTS_POLL_USE_POLL
 		"poll"
 #elif ERTS_POLL_USE_SELECT
 		"select"
 #endif
 		,
-		"true"
-		,
-#if ERTS_POLL_USE_BATCH_UPDATE_POLLSET
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
 		"true"
 #else
 		"false"
@@ -2963,29 +2232,20 @@ print_misc_debug_info(void)
 #ifdef FD_SETSIZE
     erts_printf("FD_SETSIZE=%d\n", FD_SETSIZE);
 #endif
-}
-    
 #endif
+}
 
 #ifdef ERTS_ENABLE_LOCK_COUNT
-static void erts_lcnt_enable_pollset_lock_count(ErtsPollSet pollset, int enable) {
+void ERTS_POLL_EXPORT(erts_lcnt_enable_pollset_lock_count)(ErtsPollSet *pollset, int enable)
+{
+#if !ERTS_POLL_USE_CONCURRENT_UPDATE
     if(enable) {
         erts_lcnt_install_new_lock_info(&pollset->mtx.lcnt, "pollset_rm", NIL,
             ERTS_LOCK_TYPE_MUTEX | ERTS_LOCK_FLAGS_CATEGORY_IO);
     } else {
         erts_lcnt_uninstall(&pollset->mtx.lcnt);
     }
-}
-
-void ERTS_POLL_EXPORT(erts_lcnt_update_pollset_locks)(int enable) {
-    ErtsPollSet iterator;
-
-    erts_mtx_lock(&pollsets_lock);
-
-    for(iterator = pollsets; iterator != NULL; iterator = iterator->next) {
-        erts_lcnt_enable_pollset_lock_count(iterator, enable);
-    }
-
-    erts_mtx_unlock(&pollsets_lock);
+#endif
+    return;
 }
 #endif
diff --git a/erts/emulator/sys/common/erl_poll.h b/erts/emulator/sys/common/erl_poll.h
index a57dc51e5b..e9a667cac1 100644
--- a/erts/emulator/sys/common/erl_poll.h
+++ b/erts/emulator/sys/common/erl_poll.h
@@ -18,11 +18,31 @@
  * %CopyrightEnd%
  */
 
-/*
- * Description:	Poll interface suitable for ERTS with or without
- *              SMP support.
+/**
+ * @description: Poll interface suitable for ERTS with SMP support.
+ *
+ * @author: 	Rickard Green
+ * @author: 	Lukas Larsson
+ *
+ * This header file exports macros and functions that are used to
+ * react to I/O polling events from file descriptors or wait-able
+ * objects. The API exported is the following:
  *
- * Author: 	Rickard Green
+ * defines:
+ *   ERTS_POLL_EV_NONE - No events have been set. This is not the same as 0.
+ *   ERTS_POLL_EV_IN   - Represent an IN event
+ *   ERTS_POLL_EV_OUT  - Represent an OUT event
+ *   ERTS_POLL_EV_ERR  - Represent an error event
+ *   ERTS_POLL_EV_NVAL - Represent an invalid event
+ *
+ * macro functions:
+ *   ErtsSysFdType ERTS_POLL_RES_GET_FD(ErtsPollResFd *evt);
+ *   void ERTS_POLL_RES_SET_FD(ErtsPollResFd *evt, ErtsSysFdType fd);
+ *   ErtsPollEvents ERTS_POLL_RES_GET_EVTS(ErtsPollResFd *evt)
+ *   void ERTS_POLL_RES_SET_EVTS(ErtsPollResFd *evt, ErtsPollEvents fd);
+ *
+ * functions:
+ *   See erl_poll_api.h
  */
 
 #ifndef ERL_POLL_H__
@@ -32,33 +52,27 @@
 
 #define ERTS_POLL_NO_TIMEOUT ERTS_MONOTONIC_TIME_MIN
 
-#if 0
-#define ERTS_POLL_COUNT_AVOIDED_WAKEUPS
-#endif
-
 #ifdef ERTS_ENABLE_KERNEL_POLL
-#  if defined(ERTS_KERNEL_POLL_VERSION)
-#    define ERTS_POLL_EXPORT(FUNC) FUNC ## _kp
+#  undef ERTS_ENABLE_KERNEL_POLL
+#  define ERTS_ENABLE_KERNEL_POLL 1
+#  if defined(ERTS_NO_KERNEL_POLL_VERSION)
+#    define ERTS_POLL_EXPORT(FUNC) FUNC ## _flbk
+#    undef ERTS_NO_KERNEL_POLL_VERSION
+#    define ERTS_NO_KERNEL_POLL_VERSION 1
+#    define ERTS_KERNEL_POLL_VERSION 0
 #  else
-#    define ERTS_POLL_EXPORT(FUNC) FUNC ## _nkp
-#    undef ERTS_POLL_DISABLE_KERNEL_POLL
-#    define ERTS_POLL_DISABLE_KERNEL_POLL
+#    undef ERTS_KERNEL_POLL_VERSION
+#    define ERTS_KERNEL_POLL_VERSION 1
+#    define ERTS_NO_KERNEL_POLL_VERSION 0
+#    define ERTS_POLL_EXPORT(FUNC) FUNC
 #  endif
 #else
 #    define ERTS_POLL_EXPORT(FUNC) FUNC
-#    undef ERTS_POLL_DISABLE_KERNEL_POLL
-#    define ERTS_POLL_DISABLE_KERNEL_POLL
-#endif
-
-#ifdef ERTS_POLL_DISABLE_KERNEL_POLL
-#  undef HAVE_SYS_EPOLL_H
-#  undef HAVE_SYS_EVENT_H
-#  undef HAVE_SYS_DEVPOLL_H
+#    define ERTS_ENABLE_KERNEL_POLL 0
+#    define ERTS_NO_KERNEL_POLL_VERSION 1
+#    define ERTS_KERNEL_POLL_VERSION 0
 #endif
 
-#undef ERTS_POLL_USE_KERNEL_POLL
-#define ERTS_POLL_USE_KERNEL_POLL 0
-
 #undef ERTS_POLL_USE_KQUEUE
 #define ERTS_POLL_USE_KQUEUE 0
 #undef ERTS_POLL_USE_EPOLL
@@ -70,68 +84,96 @@
 #undef ERTS_POLL_USE_SELECT
 #define ERTS_POLL_USE_SELECT 0
 
-#if defined(HAVE_SYS_EVENT_H)
-#  undef ERTS_POLL_USE_KQUEUE
-#  define ERTS_POLL_USE_KQUEUE 1
-#  undef ERTS_POLL_USE_KERNEL_POLL
-#  define ERTS_POLL_USE_KERNEL_POLL 1
-#elif defined(HAVE_SYS_EPOLL_H)
-#  undef ERTS_POLL_USE_EPOLL
-#  define ERTS_POLL_USE_EPOLL 1
-#  undef ERTS_POLL_USE_KERNEL_POLL
-#  define ERTS_POLL_USE_KERNEL_POLL 1
-#elif defined(HAVE_SYS_DEVPOLL_H)
-#  undef ERTS_POLL_USE_DEVPOLL
-#  define ERTS_POLL_USE_DEVPOLL 1
-#  undef ERTS_POLL_USE_KERNEL_POLL
-#  define ERTS_POLL_USE_KERNEL_POLL 1
+/* Defines which structure that erts_poll_wait should use to wait with
+   and how events should be represented */
+#define ERTS_POLL_USE_EPOLL_EVS 0
+#define ERTS_POLL_USE_KQUEUE_EVS 0
+#define ERTS_POLL_USE_DEVPOLL_EVS 0
+#define ERTS_POLL_USE_POLL_EVS 0
+#define ERTS_POLL_USE_SELECT_EVS 0
+
+#define ERTS_POLL_USE_KERNEL_POLL ERTS_KERNEL_POLL_VERSION
+
+#if ERTS_ENABLE_KERNEL_POLL
+#  if defined(HAVE_SYS_EVENT_H)
+#    undef ERTS_POLL_USE_KQUEUE_EVS
+#    define ERTS_POLL_USE_KQUEUE_EVS 1
+#    undef ERTS_POLL_USE_KQUEUE
+#    define ERTS_POLL_USE_KQUEUE ERTS_KERNEL_POLL_VERSION
+#  elif defined(HAVE_SYS_EPOLL_H)
+#    undef ERTS_POLL_USE_EPOLL_EVS
+#    define ERTS_POLL_USE_EPOLL_EVS 1
+#    undef ERTS_POLL_USE_EPOLL
+#    define ERTS_POLL_USE_EPOLL ERTS_KERNEL_POLL_VERSION
+#  elif defined(HAVE_SYS_DEVPOLL_H)
+#    undef ERTS_POLL_USE_DEVPOLL_EVS
+#    define ERTS_POLL_USE_DEVPOLL_EVS 1
+#    undef ERTS_POLL_USE_DEVPOLL
+#    define ERTS_POLL_USE_DEVPOLL ERTS_KERNEL_POLL_VERSION
+#  else
+#    error "Missing kernel poll implementation of erts_poll()"
+#  endif
 #endif
 
-#define ERTS_POLL_USE_FALLBACK (ERTS_POLL_USE_KQUEUE || ERTS_POLL_USE_EPOLL)
-
-#if !ERTS_POLL_USE_KERNEL_POLL || ERTS_POLL_USE_FALLBACK
+#if ERTS_NO_KERNEL_POLL_VERSION
 #  if defined(ERTS_USE_POLL)
+#    undef ERTS_POLL_USE_POLL_EVS
+#    define ERTS_POLL_USE_POLL_EVS 1
 #    undef ERTS_POLL_USE_POLL
 #    define ERTS_POLL_USE_POLL 1
 #  elif !defined(__WIN32__)
+#    undef ERTS_POLL_USE_SELECT_EVS
+#    define ERTS_POLL_USE_SELECT_EVS 1
 #    undef ERTS_POLL_USE_SELECT
 #    define ERTS_POLL_USE_SELECT 1
 #  endif
 #endif
 
-#define ERTS_POLL_USE_TIMERFD 0
+#define ERTS_POLL_USE_FALLBACK (ERTS_POLL_USE_KQUEUE || ERTS_POLL_USE_EPOLL)
 
 typedef Uint32 ErtsPollEvents;
-#undef ERTS_POLL_EV_E2N
+
+typedef enum {
+    ERTS_POLL_OP_ADD = 0,          /* Add the FD to the pollset */
+    ERTS_POLL_OP_MOD = 1,          /* Modify the FD in the pollset */
+    ERTS_POLL_OP_DEL = 2           /* Delete the FD from the pollset */
+} ErtsPollOp;
+
+#define op2str(op) (op == ERTS_POLL_OP_ADD ? "add" :            \
+                    (op == ERTS_POLL_OP_MOD ? "mod" : "del"))
 
 #if defined(__WIN32__)	/* --- win32  --------------------------------------- */
 
-#define ERTS_POLL_EV_IN   1
-#define ERTS_POLL_EV_OUT  2
-#define ERTS_POLL_EV_ERR  4
-#define ERTS_POLL_EV_NVAL 8
+#define ERTS_POLL_EV_IN    1
+#define ERTS_POLL_EV_OUT   2
+#define ERTS_POLL_EV_ERR   4
+#define ERTS_POLL_EV_NVAL  8
 
-#elif ERTS_POLL_USE_EPOLL	/* --- epoll ------------------------------- */
+#define ERTS_POLL_EV_E2N(EV) 		(EV)
+#define ERTS_POLL_EV_N2E(EV) 		(EV)
 
-#include <sys/epoll.h>
+#elif ERTS_POLL_USE_EPOLL_EVS	/* --- epoll ------------------------------- */
 
-#ifdef HAVE_SYS_TIMERFD_H
-#include <sys/timerfd.h>
-#undef ERTS_POLL_USE_TIMERFD
-#define ERTS_POLL_USE_TIMERFD 1
-#endif
+#include <sys/epoll.h>
 
 #define ERTS_POLL_EV_E2N(EV) \
   ((uint32_t) (EV))
 #define ERTS_POLL_EV_N2E(EV) \
-  ((ErtsPollEvents) (EV))
+  ((ErtsPollEvents) (EV) & ~EPOLLONESHOT)
 
 #define ERTS_POLL_EV_IN			ERTS_POLL_EV_N2E(EPOLLIN)
 #define ERTS_POLL_EV_OUT		ERTS_POLL_EV_N2E(EPOLLOUT)
 #define ERTS_POLL_EV_NVAL		ERTS_POLL_EV_N2E(EPOLLET)
 #define ERTS_POLL_EV_ERR		ERTS_POLL_EV_N2E(EPOLLERR|EPOLLHUP)
 
-#elif ERTS_POLL_USE_DEVPOLL	/* --- devpoll ----------------------------- */
+typedef struct epoll_event ErtsPollResFd;
+
+#define ERTS_POLL_RES_GET_FD(evt) ((ErtsSysFdType)((evt)->data.fd))
+#define ERTS_POLL_RES_SET_FD(evt, ident) (evt)->data.fd = ident
+#define ERTS_POLL_RES_GET_EVTS(evt) ERTS_POLL_EV_N2E((evt)->events)
+#define ERTS_POLL_RES_SET_EVTS(evt, evts) (evt)->events = ERTS_POLL_EV_E2N(evts)
+
+#elif ERTS_POLL_USE_DEVPOLL_EVS	/* --- devpoll ----------------------------- */
 
 #include <sys/devpoll.h>
 
@@ -145,12 +187,37 @@ typedef Uint32 ErtsPollEvents;
 #define ERTS_POLL_EV_NVAL		ERTS_POLL_EV_N2E(POLLNVAL)
 #define ERTS_POLL_EV_ERR		ERTS_POLL_EV_N2E(POLLERR|POLLHUP)
 
-#elif ERTS_POLL_USE_KQUEUE	/* --- kqueue ------------------------------ */
+typedef struct pollfd ErtsPollResFd;
+
+#define ERTS_POLL_RES_GET_FD(evt) ((ErtsSysFdType)((evt)->fd))
+#define ERTS_POLL_RES_SET_FD(evt, ident) (evt)->fd = ident
+#define ERTS_POLL_RES_GET_EVTS(evt) ERTS_POLL_EV_N2E((evt)->revents)
+#define ERTS_POLL_RES_SET_EVTS(evt, evts) (evt)->revents = ERTS_POLL_EV_E2N(evts)
+
+#elif ERTS_POLL_USE_KQUEUE_EVS	/* --- kqueue ------------------------------ */
 /* Kqueue use fallback defines (poll() or select()) */
+
+#include <sys/event.h>
+
+#ifdef ERTS_USE_POLL
+#  undef ERTS_POLL_USE_POLL_EVS
+#  define ERTS_POLL_USE_POLL_EVS   1
+#elif !defined(__WIN32__)
+#  undef ERTS_POLL_USE_SELECT_EVS
+#  define ERTS_POLL_USE_SELECT_EVS 1
 #endif
 
-#if ERTS_POLL_USE_POLL	/* --- poll -------------------------------- */
+typedef struct kevent ErtsPollResFd;
+
+#define ERTS_POLL_RES_GET_FD(evt) ((ErtsSysFdType)((evt)->ident))
+#define ERTS_POLL_RES_SET_FD(evt, fd) (evt)->ident = fd
+#define ERTS_POLL_RES_GET_EVTS(evt) ERTS_POLL_EV_N2E((ErtsPollEvents)(evt)->udata)
+#define ERTS_POLL_RES_SET_EVTS(evt, evts) (evt)->udata = (void*)(UWord)(ERTS_POLL_EV_E2N(evts))
+
+#endif
 
+#if ERTS_POLL_USE_POLL_EVS
+				/* --- poll -------------------------------- */
 #include <poll.h>
 
 #define ERTS_POLL_EV_NKP_E2N(EV) \
@@ -169,7 +236,7 @@ typedef Uint32 ErtsPollEvents;
 #define ERTS_POLL_EV_NKP_NVAL		ERTS_POLL_EV_N2E(POLLNVAL)
 #define ERTS_POLL_EV_NKP_ERR		ERTS_POLL_EV_N2E(POLLERR|POLLHUP)
 
-#elif ERTS_POLL_USE_SELECT	/* --- select ------------------------------ */
+#elif ERTS_POLL_USE_SELECT_EVS	/* --- select ------------------------------ */
 
 #define ERTS_POLL_EV_NKP_E2N(EV) (EV)
 #define ERTS_POLL_EV_NKP_N2E(EV) (EV)
@@ -195,70 +262,65 @@ typedef Uint32 ErtsPollEvents;
 
 #endif
 
-typedef struct ErtsPollSet_ *ErtsPollSet;
+#if !ERTS_ENABLE_KERNEL_POLL
 
-typedef struct {
-    ErtsSysFdType fd;
-    ErtsPollEvents events;
-    int on;
-} ErtsPollControlEntry;
-
-typedef struct {
+typedef struct _ErtsPollResFd {
     ErtsSysFdType fd;
     ErtsPollEvents events;
 } ErtsPollResFd;
 
+#define ERTS_POLL_RES_GET_FD(evt) (evt)->fd
+#define ERTS_POLL_RES_SET_FD(evt, ident) (evt)->fd = (ident)
+#define ERTS_POLL_RES_GET_EVTS(evt) ERTS_POLL_EV_N2E((evt)->events)
+#define ERTS_POLL_RES_SET_EVTS(evt, evts) (evt)->events = ERTS_POLL_EV_E2N(evts)
+
+#endif
+
+#define ERTS_POLL_EV_NONE (UINT_MAX & ~(ERTS_POLL_EV_IN|ERTS_POLL_EV_OUT|ERTS_POLL_EV_NVAL|ERTS_POLL_EV_ERR))
+
+#define ev2str(ev)                                                     \
+    (((ev) == 0 || (ev) == ERTS_POLL_EV_NONE) ? "NONE" :               \
+     ((ev) == ERTS_POLL_EV_IN ? "IN" :                                 \
+      ((ev) == ERTS_POLL_EV_OUT ? "OUT" :                              \
+       ((ev) == (ERTS_POLL_EV_IN|ERTS_POLL_EV_OUT) ? "IN|OUT" :        \
+        ((ev) & ERTS_POLL_EV_ERR ? "ERR" :                             \
+         ((ev) & ERTS_POLL_EV_NVAL ? "NVAL" : "OTHER"))))))
+
+
+typedef struct ERTS_POLL_EXPORT(erts_pollset) ErtsPollSet;
+
 typedef struct {
     char *primary;
-    char *fallback;
     char *kernel_poll;
     Uint memory_size;
-    int poll_set_size;
-    int fallback_poll_set_size;
+    Uint poll_set_size;
     int lazy_updates;
-    int pending_updates;
+    Uint pending_updates;
     int batch_updates;
     int concurrent_updates;
-    int max_fds;
-#ifdef ERTS_POLL_COUNT_AVOIDED_WAKEUPS
-    long no_avoided_wakeups;
-    long no_avoided_interrupts;
-    long no_interrupt_timed;
-#endif
+    int is_fallback;
+    Uint max_fds;
+    Uint active_fds;
+    Uint poll_threads;
 } ErtsPollInfo;
 
-void		ERTS_POLL_EXPORT(erts_poll_interrupt)(ErtsPollSet,
-						      int);
-void		ERTS_POLL_EXPORT(erts_poll_interrupt_timed)(ErtsPollSet,
-							    int,
-							    ErtsMonotonicTime);
-ErtsPollEvents	ERTS_POLL_EXPORT(erts_poll_control)(ErtsPollSet,
-						    ErtsSysFdType,
-						    ErtsPollEvents,
-						    int on,
-						    int* wake_poller
-						    );
-void		ERTS_POLL_EXPORT(erts_poll_controlv)(ErtsPollSet,
-						     ErtsPollControlEntry [],
-						     int on);
-int		ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet,
-						 ErtsPollResFd [],
-						 int *,
-						 ErtsMonotonicTime);
-int		ERTS_POLL_EXPORT(erts_poll_max_fds)(void);
-void		ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet,
-						 ErtsPollInfo *);
-ErtsPollSet	ERTS_POLL_EXPORT(erts_poll_create_pollset)(void);
-void		ERTS_POLL_EXPORT(erts_poll_destroy_pollset)(ErtsPollSet);
-void		ERTS_POLL_EXPORT(erts_poll_init)(void);
-void		ERTS_POLL_EXPORT(erts_poll_get_selected_events)(ErtsPollSet,
-								ErtsPollEvents [],
-								int);
+#if defined(ERTS_POLL_USE_FALLBACK) && ERTS_KERNEL_POLL_VERSION
+#  undef ERTS_POLL_EXPORT
+#  define ERTS_POLL_EXPORT(FUNC) FUNC ## _flbk
+#  include "erl_poll_api.h"
+#  undef ERTS_POLL_EXPORT
+#  define ERTS_POLL_EXPORT(FUNC) FUNC
+#elif !defined(ERTS_POLL_USE_FALLBACK)
+#  define ERTS_POLL_USE_FALLBACK 0
+#endif
 
-int erts_poll_new_table_len(int old_len, int need_len);
+#include "erl_poll_api.h"
 
-#ifdef ERTS_ENABLE_LOCK_COUNT
-void ERTS_POLL_EXPORT(erts_lcnt_update_pollset_locks)(int enable);
-#endif
+/**
+ * Get the next size of the array that holds the file descriptors.
+ * This function is used in order for the check io array and the
+ * pollset array to be of the same size.
+ */
+int erts_poll_new_table_len(int old_len, int need_len);
 
 #endif /* #ifndef ERL_POLL_H__ */
diff --git a/erts/emulator/sys/common/erl_poll_api.h b/erts/emulator/sys/common/erl_poll_api.h
new file mode 100644
index 0000000000..04beb37d1c
--- /dev/null
+++ b/erts/emulator/sys/common/erl_poll_api.h
@@ -0,0 +1,122 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2006-2016. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * %CopyrightEnd%
+ */
+/**
+ * @description: Poll interface functions
+ * @author Lukas Larsson
+ *
+ * The functions in the header are used to interact with the poll
+ * implementation. Iff the kernel-poll implementation needs a fallback
+ * pollset, then all functions are exported twice. Once with a _flbk
+ * suffix and once without any suffix. If no fallback is needed, then
+ * only the non-suffix version is exported.
+ */
+
+/**
+ * Initialize the poll implementation. Has to be called before any other function.
+ * @param[out] concurrent_waiters if not NULL, set to 1 if more then one thread
+ * is allowed to wait in the pollsets at the same time.
+ */
+void ERTS_POLL_EXPORT(erts_poll_init)(int *concurrent_waiters);
+/**
+ * @brief Create a new pollset.
+ * @param id The unique debug id of this pollset.
+ */
+ErtsPollSet *ERTS_POLL_EXPORT(erts_poll_create_pollset)(int id);
+
+/**
+ * Modify the contents of a pollset. This function can be called while one
+ * (or possibly more) thread is waiting in the pollset.
+ *
+ * @param ps the pollset to modify
+ * @param fd the file descriptor to modify
+ * @param op the type of operation to do. Normal usage is ADD,MOD...MOD,DEL.
+ * @param evts the events that we are changing interest to. Ignored if op is DEL.
+ * @param[in] wake_poller if set to 1 any thread waiting in the pollset will be woken.
+ *   This parameter is ignored if the pollset supports concurrent waiters.
+ * @param[out] wake_poller set to 1 if the waiting thread was woken.
+ * @return The events set, or ERTS_POLL_EV_NVAL if it was not possible to add the
+ * fd to the pollset.
+ */
+ErtsPollEvents ERTS_POLL_EXPORT(erts_poll_control)(ErtsPollSet *ps,
+                                                   ErtsSysFdType fd,
+                                                   ErtsPollOp op,
+                                                   ErtsPollEvents evts,
+                                                   int *wake_poller);
+
+/**
+ * Wait for events to be ready in the pollset. If the erts_poll_init call
+ * set concurrent_waiters to 1, then multiple threads are allowed to call
+ * this function at the same time.
+ *
+ * When an event has been triggered on a fd, that event is disabled. To
+ * re-enable it the implementation has to call erts_poll_control again.
+ *
+ * @param ps the pollset to wait for events in
+ * @param res an array of fd results that the ready fds are put in.
+ * @param[in] length the length of the res array
+ * @param[out] length the number of ready events returned in res
+ * @return 0 on success, else the ERRNO of the error that happened.
+ */
+int ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet *ps,
+                                     ErtsPollResFd res[],
+                                     int *length);
+/**
+ * Interrupt the thread waiting in the pollset. This function should be called
+ * with set = 0 before any thread calls erts_poll_wait in order to clear any
+ * interrupts that have happened while the thread was awake.
+ *
+ * This function has no effect on pollsets that support concurrent waiters.
+ *
+ * @param ps the pollset to wake
+ * @param set if 1, interrupt the pollset, if 0 clear the interrupt flag.
+ */
+void ERTS_POLL_EXPORT(erts_poll_interrupt)(ErtsPollSet *ps, int set);
+
+/* Debug functions */
+
+/**
+ * Get the maximum number of fds supported by the pollset
+ */
+int ERTS_POLL_EXPORT(erts_poll_max_fds)(void);
+/**
+ * Get information about the given pollset
+ */
+void ERTS_POLL_EXPORT(erts_poll_info)(ErtsPollSet *ps,
+                                      ErtsPollInfo *info);
+/**
+ * Get information about which events are currently selected.
+ *
+ * The unix fd is used to index into the array, so naturally this function does
+ * not work on windows. If the pollset cannot figure out what the selected
+ * events for a given fd is, it is set to ERTS_POLL_EV_NONE.
+ *
+ * @param ps the pollset to get events from
+ * @param evts an array of which events are selected on.
+ */
+void ERTS_POLL_EXPORT(erts_poll_get_selected_events)(ErtsPollSet *ps,
+                                                     ErtsPollEvents evts[],
+                                                     int length);
+
+#ifdef ERTS_ENABLE_LOCK_COUNT
+/**
+ * Enable lock counting of any locks within the pollset.
+ */
+void ERTS_POLL_EXPORT(erts_lcnt_enable_pollset_lock_count)(ErtsPollSet *, int enable);
+#endif
diff --git a/erts/emulator/sys/common/erl_sys_common_misc.c b/erts/emulator/sys/common/erl_sys_common_misc.c
index 09237c81ce..420138ff0a 100644
--- a/erts/emulator/sys/common/erl_sys_common_misc.c
+++ b/erts/emulator/sys/common/erl_sys_common_misc.c
@@ -45,14 +45,6 @@
 #endif
 #endif
 
-/*
- * erts_check_io_time is used by the erl_check_io implementation. The
- * global erts_check_io_time variable is declared here since there
- * (often) exist two versions of erl_check_io (kernel-poll and
- * non-kernel-poll), and we dont want two versions of this variable.
- */
-erts_atomic_t erts_check_io_time;
-
 /* Written once and only once */
 
 static int filename_encoding = ERL_FILENAME_UNKNOWN;
diff --git a/erts/emulator/sys/unix/erl_unix_sys.h b/erts/emulator/sys/unix/erl_unix_sys.h
index cbbd0e6f40..b6f5b319ee 100644
--- a/erts/emulator/sys/unix/erl_unix_sys.h
+++ b/erts/emulator/sys/unix/erl_unix_sys.h
@@ -86,6 +86,10 @@
 
 #include <sys/times.h>
 
+#ifdef HAVE_SYS_RESOURCE_H
+#  include <sys/resource.h>
+#endif
+
 #ifdef HAVE_IEEEFP_H
 #include <ieeefp.h>
 #endif
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index 237614b0fb..6315135151 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -131,121 +131,6 @@ static int replace_intr = 0;
 /* assume yes initially, ttsl_init will clear it */
 int using_oldshell = 1;
 
-#ifdef ERTS_ENABLE_KERNEL_POLL
-
-int erts_use_kernel_poll = 0;
-
-struct {
-    int (*select)(ErlDrvPort, ErlDrvEvent, int, int);
-    int (*enif_select)(ErlNifEnv*, ErlNifEvent, enum ErlNifSelectFlags, void*, const ErlNifPid*, Eterm);
-    int (*event)(ErlDrvPort, ErlDrvEvent, ErlDrvEventData);
-    void (*check_io_as_interrupt)(void);
-    void (*check_io_interrupt)(int);
-    void (*check_io_interrupt_tmd)(int, ErtsMonotonicTime);
-    void (*check_io)(int);
-    Uint (*size)(void);
-    Eterm (*info)(void *);
-    int (*check_io_debug)(ErtsCheckIoDebugInfo *);
-} io_func = {0};
-
-
-int
-driver_select(ErlDrvPort port, ErlDrvEvent event, int mode, int on)
-{
-    return (*io_func.select)(port, event, mode, on);
-}
-
-int
-driver_event(ErlDrvPort port, ErlDrvEvent event, ErlDrvEventData event_data)
-{
-    return (*io_func.event)(port, event, event_data);
-}
-
-int enif_select(ErlNifEnv* env, ErlNifEvent event,
-                enum ErlNifSelectFlags flags, void* obj, const ErlNifPid* pid, Eterm ref)
-{
-    return (*io_func.enif_select)(env, event, flags, obj, pid, ref);
-}
-
-
-Eterm erts_check_io_info(void *p)
-{
-    return (*io_func.info)(p);
-}
-
-int
-erts_check_io_debug(ErtsCheckIoDebugInfo *ip)
-{
-    return (*io_func.check_io_debug)(ip);
-}
-
-
-static void
-init_check_io(void)
-{
-    if (erts_use_kernel_poll) {
-	io_func.select			= driver_select_kp;
-        io_func.enif_select		= enif_select_kp;
-	io_func.event			= driver_event_kp;
-	io_func.check_io_interrupt	= erts_check_io_interrupt_kp;
-	io_func.check_io_interrupt_tmd	= erts_check_io_interrupt_timed_kp;
-	io_func.check_io		= erts_check_io_kp;
-	io_func.size			= erts_check_io_size_kp;
-	io_func.info			= erts_check_io_info_kp;
-	io_func.check_io_debug		= erts_check_io_debug_kp;
-	erts_init_check_io_kp();
-	max_files = erts_check_io_max_files_kp();
-    }
-    else {
-	io_func.select			= driver_select_nkp;
-        io_func.enif_select		= enif_select_nkp;
-	io_func.event			= driver_event_nkp;
-	io_func.check_io_interrupt	= erts_check_io_interrupt_nkp;
-	io_func.check_io_interrupt_tmd	= erts_check_io_interrupt_timed_nkp;
-	io_func.check_io		= erts_check_io_nkp;
-	io_func.size			= erts_check_io_size_nkp;
-	io_func.info			= erts_check_io_info_nkp;
-	io_func.check_io_debug		= erts_check_io_debug_nkp;
-	erts_init_check_io_nkp();
-	max_files = erts_check_io_max_files_nkp();
-    }
-}
-
-#define ERTS_CHK_IO_AS_INTR()	(*io_func.check_io_interrupt)(1)
-#define ERTS_CHK_IO_INTR	(*io_func.check_io_interrupt)
-#define ERTS_CHK_IO_INTR_TMD	(*io_func.check_io_interrupt_tmd)
-#define ERTS_CHK_IO		(*io_func.check_io)
-#define ERTS_CHK_IO_SZ		(*io_func.size)
-
-#else /* !ERTS_ENABLE_KERNEL_POLL */
-
-static void
-init_check_io(void)
-{
-    erts_init_check_io();
-    max_files = erts_check_io_max_files();
-}
-
-#define ERTS_CHK_IO_AS_INTR()	erts_check_io_interrupt(1)
-#define ERTS_CHK_IO_INTR	erts_check_io_interrupt
-#define ERTS_CHK_IO_INTR_TMD	erts_check_io_interrupt_timed
-#define ERTS_CHK_IO		erts_check_io
-#define ERTS_CHK_IO_SZ		erts_check_io_size
-
-#endif
-
-void
-erts_sys_schedule_interrupt(int set)
-{
-    ERTS_CHK_IO_INTR(set);
-}
-
-void
-erts_sys_schedule_interrupt_timed(int set, ErtsMonotonicTime timeout_time)
-{
-    ERTS_CHK_IO_INTR_TMD(set, timeout_time);
-}
-
 UWord
 erts_sys_get_page_size(void)
 {
@@ -261,7 +146,7 @@ erts_sys_get_page_size(void)
 Uint
 erts_sys_misc_mem_sz(void)
 {
-    Uint res = ERTS_CHK_IO_SZ();
+    Uint res = erts_check_io_size();
     res += erts_atomic_read_mb(&sys_misc_mem_sz);
     return res;
 }
@@ -618,14 +503,12 @@ break_requested(void)
    * just set a flag - checked for and handled by
    * scheduler threads erts_check_io() (not signal handler).
    */
-#ifdef DEBUG			
-  fprintf(stderr,"break!\n");
-#endif
   if (ERTS_BREAK_REQUESTED)
       erts_exit(ERTS_INTR_EXIT, "");
 
   ERTS_SET_BREAK_REQUESTED;
-  ERTS_CHK_IO_AS_INTR(); /* Make sure we don't sleep in poll */
+  /* Wake aux thread to get handle break */
+  erts_aux_thread_poke();
 }
 
 static RETSIGTYPE request_break(int signum)
@@ -739,7 +622,6 @@ signum_to_signalterm(int signum)
     }
 }
 
-
 static RETSIGTYPE generic_signal_handler(int signum)
 {
     smp_sig_notify(signum);
@@ -814,7 +696,7 @@ erts_sys_unix_later_init(void)
 
 int sys_max_files(void)
 {
-   return(max_files);
+   return max_files;
 }
 
 /************************** OS info *******************************/
@@ -1191,20 +1073,6 @@ erl_debug(char* fmt, ...)
 
 #endif /* DEBUG */
 
-/*
- * Called from schedule() when it runs out of runnable processes,
- * or when Erlang code has performed INPUT_REDUCTIONS reduction
- * steps. runnable == 0 iff there are no runnable Erlang processes.
- */
-void
-erl_sys_schedule(int runnable)
-{
-    ERTS_CHK_IO(!runnable);
-    ERTS_LC_ASSERT(!erts_thr_progress_is_blocking());
-}
-
-
-
 static erts_tid_t sig_dispatcher_tid;
 
 static void
@@ -1393,99 +1261,18 @@ erts_sys_main_thread(void)
 }
 
 
-#ifdef ERTS_ENABLE_KERNEL_POLL /* get_value() is currently only used when
-				  kernel-poll is enabled */
-
-/* Get arg marks argument as handled by
-   putting NULL in argv */
-static char *
-get_value(char* rest, char** argv, int* ip)
-{
-    char *param = argv[*ip]+1;
-    argv[*ip] = NULL;
-    if (*rest == '\0') {
-	char *next = argv[*ip + 1];
-	if (next[0] == '-'
-	    && next[1] == '-'
-	    &&  next[2] == '\0') {
-	    erts_fprintf(stderr, "bad \"%s\" value: \n", param);
-	    erts_usage();
-	}
-	(*ip)++;
-	argv[*ip] = NULL;
-	return next;
-    }
-    return rest;
-}
-
-#endif /* ERTS_ENABLE_KERNEL_POLL */
-
 void
 erl_sys_args(int* argc, char** argv)
 {
-    int i, j;
 
     erts_rwmtx_init(&environ_rwmtx, "environ", NIL,
         ERTS_LOCK_FLAGS_PROPERTY_STATIC | ERTS_LOCK_FLAGS_CATEGORY_GENERIC);
 
-    i = 1;
-
     ASSERT(argc && argv);
 
-    while (i < *argc) {
-	if(argv[i][0] == '-') {
-	    switch (argv[i][1]) {
-#ifdef ERTS_ENABLE_KERNEL_POLL
-	    case 'K': {
-		char *arg = get_value(argv[i] + 2, argv, &i);
-		if (strcmp("true", arg) == 0) {
-		    erts_use_kernel_poll = 1;
-		}
-		else if (strcmp("false", arg) == 0) {
-		    erts_use_kernel_poll = 0;
-		}
-		else {
-		    erts_fprintf(stderr, "bad \"K\" value: %s\n", arg);
-		    erts_usage();
-		}
-		break;
-	    }
-#endif
-	    case '-':
-		goto done_parsing;
-	    default:
-		break;
-	    }
-	}
-	i++;
-    }
-
- done_parsing:
-
-#ifdef ERTS_ENABLE_KERNEL_POLL
-    if (erts_use_kernel_poll) {
-	char no_kp[10];
-	size_t no_kp_sz = sizeof(no_kp);
-	int res = erts_sys_getenv_raw("ERL_NO_KERNEL_POLL", no_kp, &no_kp_sz);
-	if (res > 0
-	    || (res == 0
-		&& sys_strcmp("false", no_kp) != 0
-		&& sys_strcmp("FALSE", no_kp) != 0)) {
-	    erts_use_kernel_poll = 0;
-	}
-    }
-#endif
-
-    init_check_io();
+    max_files = erts_check_io_max_files();
 
     init_smp_sig_notify();
     init_smp_sig_suspend();
 
-    /* Handled arguments have been marked with NULL. Slide arguments
-       not handled towards the beginning of argv. */
-    for (i = 0, j = 0; i < *argc; i++) {
-	if (argv[i])
-	    argv[j++] = argv[i];
-    }
-    *argc = j;
 }
diff --git a/erts/emulator/sys/unix/sys_drivers.c b/erts/emulator/sys/unix/sys_drivers.c
index 7c9a532fed..0228e1af54 100644
--- a/erts/emulator/sys/unix/sys_drivers.c
+++ b/erts/emulator/sys/unix/sys_drivers.c
@@ -1723,8 +1723,6 @@ static ErlDrvData forker_start(ErlDrvPort port_num, char* name,
 
     SET_NONBLOCKING(forker_fd);
 
-    driver_select(port_num, forker_fd, ERL_DRV_READ|ERL_DRV_USE, 1);
-
     return (ErlDrvData)port_num;
 }
 
@@ -1821,10 +1819,19 @@ static void forker_ready_output(ErlDrvData e, ErlDrvEvent fd)
 static ErlDrvSSizeT forker_control(ErlDrvData e, unsigned int cmd, char *buf,
                                    ErlDrvSizeT len, char **rbuf, ErlDrvSizeT rlen)
 {
+    static int first_call = 1;
     ErtsSysForkerProto *proto = (ErtsSysForkerProto *)buf;
     ErlDrvPort port_num = (ErlDrvPort)e;
     int res;
 
+    if (first_call) {
+        /*
+         * Do driver_select here when schedulers and their pollsets have started.
+         */
+        driver_select(port_num, forker_fd, ERL_DRV_READ|ERL_DRV_USE, 1);
+        first_call = 0;
+    }
+
     driver_enq(port_num, buf, len);
     if (driver_sizeq(port_num) > sizeof(*proto)) {
         return 0;
diff --git a/erts/emulator/sys/win32/erl_poll.c b/erts/emulator/sys/win32/erl_poll.c
index 0bd43bb4fb..fd4c745c3b 100644
--- a/erts/emulator/sys/win32/erl_poll.c
+++ b/erts/emulator/sys/win32/erl_poll.c
@@ -34,6 +34,7 @@
  */
 
 /*#define HARDDEBUG */
+/*#define HARDTRACE */
 #ifdef HARDDEBUG
 #ifdef HARDTRACE
 #define HARDTRACEF(X) my_debug_printf##X
@@ -50,7 +51,7 @@ static void my_debug_printf(char *fmt, ...)
     va_start(args, fmt);
     erts_vsnprintf(buffer,1024,fmt,args);
     va_end(args);
-    erts_fprintf(stderr,"%s\r\n",buffer);
+    erts_printf("%s\r\n",buffer);
 }
 #else
 #define HARDTRACEF(X)
@@ -274,20 +275,17 @@ typedef struct _Waiter {
 /*
  * The structure for a pollset. There can currently be only one...
  */
-struct ErtsPollSet_ {
+struct erts_pollset {
     Waiter** waiter;
     int allocated_waiters;  /* Size ow waiter array */ 
     int num_waiters;	    /* Number of waiter threads. */
-    int restore_events;        /* Tells us to restore waiters events 
-				  next time around */
     HANDLE event_io_ready;     /* To be used when waiting for io */
     /* These are used to wait for workers to enter standby */
     volatile int standby_wait_counter; /* Number of threads to wait for */
     CRITICAL_SECTION standby_crit;     /* CS to guard the counter */
-    HANDLE standby_wait_event;         /* Event signalled when counte == 0 */
+    HANDLE standby_wait_event;         /* Event signalled when counter == 0 */
     erts_atomic32_t wakeup_state;
     erts_mtx_t mtx;
-    erts_atomic64_t timeout_time;
 };
 
 
@@ -352,39 +350,19 @@ do { \
     wait_standby(PS); \
  } while(0)
 
-static ERTS_INLINE void
-init_timeout_time(ErtsPollSet ps)
-{
-    erts_atomic64_init_nob(&ps->timeout_time,
-			   (erts_aint64_t) ERTS_MONOTONIC_TIME_MAX);
-}
-
-static ERTS_INLINE void
-set_timeout_time(ErtsPollSet ps, ErtsMonotonicTime time)
-{
-    erts_atomic64_set_relb(&ps->timeout_time,
-			   (erts_aint64_t) time);
-}
-
-static ERTS_INLINE ErtsMonotonicTime
-get_timeout_time(ErtsPollSet ps)
-{
-    return (ErtsMonotonicTime) erts_atomic64_read_acqb(&ps->timeout_time);
-}
-
 #define ERTS_POLL_NOT_WOKEN		((erts_aint32_t) 0)
 #define ERTS_POLL_WOKEN_IO_READY	((erts_aint32_t) 1)
 #define ERTS_POLL_WOKEN_INTR		((erts_aint32_t) 2)
 #define ERTS_POLL_WOKEN_TIMEDOUT	((erts_aint32_t) 3)
 
 static ERTS_INLINE int
-is_io_ready(ErtsPollSet ps)
+is_io_ready(ErtsPollSet *ps)
 {
     return erts_atomic32_read_nob(&ps->wakeup_state) == ERTS_POLL_WOKEN_IO_READY;
 }
 
 static ERTS_INLINE void
-woke_up(ErtsPollSet ps)
+woke_up(ErtsPollSet *ps)
 {
     if (erts_atomic32_read_nob(&ps->wakeup_state) == ERTS_POLL_NOT_WOKEN)
 	erts_atomic32_cmpxchg_nob(&ps->wakeup_state,
@@ -407,7 +385,7 @@ woke_up(ErtsPollSet ps)
 }
 
 static ERTS_INLINE int
-wakeup_cause(ErtsPollSet ps)
+wakeup_cause(ErtsPollSet *ps)
 {
     int res;
     erts_aint32_t wakeup_state = erts_atomic32_read_acqb(&ps->wakeup_state);
@@ -430,46 +408,8 @@ wakeup_cause(ErtsPollSet ps)
     return res;
 }
 
-static ERTS_INLINE DWORD
-poll_wait_timeout(ErtsPollSet ps, ErtsMonotonicTime timeout_time)
-{
-    ErtsMonotonicTime current_time, diff_time, timeout;
-
-    if (timeout_time == ERTS_POLL_NO_TIMEOUT) {
-    no_timeout:
-	set_timeout_time(ps, ERTS_MONOTONIC_TIME_MIN);
-	woke_up(ps);
-	return (DWORD) 0;
-    }
-
-    current_time = erts_get_monotonic_time(NULL);
-    diff_time = timeout_time - current_time;
-    if (diff_time <= 0)
-	goto no_timeout;
-
-    /* Round up to nearest milli second */
-    timeout = (ERTS_MONOTONIC_TO_MSEC(diff_time - 1) + 1);
-    if (timeout > INT_MAX)
-	timeout = INT_MAX; /* Also prevents DWORD overflow */
-
-    set_timeout_time(ps, current_time + ERTS_MSEC_TO_MONOTONIC(timeout));
-
-    ResetEvent(ps->event_io_ready);
-    /*
-     * Since we don't know the internals of ResetEvent() we issue
-     * a memory barrier as a safety precaution ensuring that
-     * the load of wakeup_state wont be reordered with stores made
-     * by ResetEvent().
-     */
-    ERTS_THR_MEMORY_BARRIER;
-    if (erts_atomic32_read_nob(&ps->wakeup_state) != ERTS_POLL_NOT_WOKEN)
-	return (DWORD) 0;
-
-    return (DWORD) timeout;
-}
-
 static ERTS_INLINE void
-wake_poller(ErtsPollSet ps, int io_ready)
+wake_poller(ErtsPollSet *ps, int io_ready)
 {
     erts_aint32_t wakeup_state;
     if (io_ready) {
@@ -504,13 +444,13 @@ wake_poller(ErtsPollSet ps, int io_ready)
 }
 
 static ERTS_INLINE void
-reset_io_ready(ErtsPollSet ps)
+reset_io_ready(ErtsPollSet *ps)
 {
     erts_atomic32_set_nob(&ps->wakeup_state, ERTS_POLL_NOT_WOKEN);
 }
 
 static ERTS_INLINE void
-restore_io_ready(ErtsPollSet ps)
+restore_io_ready(ErtsPollSet *ps)
 {
     erts_atomic32_set_nob(&ps->wakeup_state, ERTS_POLL_WOKEN_IO_READY);
 }
@@ -520,13 +460,13 @@ restore_io_ready(ErtsPollSet ps)
  * notifying a poller thread about I/O ready.
  */
 static ERTS_INLINE void
-notify_io_ready(ErtsPollSet ps)
+notify_io_ready(ErtsPollSet *ps)
 {
     wake_poller(ps, 1);
 }
 
 static ERTS_INLINE void
-reset_interrupt(ErtsPollSet ps)
+reset_interrupt(ErtsPollSet *ps)
 {
     /* We need to keep io-ready if set */
     erts_aint32_t wakeup_state = erts_atomic32_read_nob(&ps->wakeup_state);
@@ -543,12 +483,12 @@ reset_interrupt(ErtsPollSet ps)
 }
 
 static ERTS_INLINE void
-set_interrupt(ErtsPollSet ps)
+set_interrupt(ErtsPollSet *ps)
 {
     wake_poller(ps, 0);
 }
 
-static void setup_standby_wait(ErtsPollSet ps, int num_threads)
+static void setup_standby_wait(ErtsPollSet *ps, int num_threads)
 {
     EnterCriticalSection(&(ps->standby_crit));
     ps->standby_wait_counter = num_threads;
@@ -556,7 +496,7 @@ static void setup_standby_wait(ErtsPollSet ps, int num_threads)
     LeaveCriticalSection(&(ps->standby_crit));
 }
 
-static void signal_standby(ErtsPollSet ps) 
+static void signal_standby(ErtsPollSet *ps)
 {
     EnterCriticalSection(&(ps->standby_crit));
     --(ps->standby_wait_counter);
@@ -570,7 +510,7 @@ static void signal_standby(ErtsPollSet ps)
     LeaveCriticalSection(&(ps->standby_crit));
 }
 
-static void wait_standby(ErtsPollSet ps)
+static void wait_standby(ErtsPollSet *ps)
 {
     WaitForSingleObject(ps->standby_wait_event,INFINITE);
 }
@@ -638,7 +578,7 @@ static void consistency_check(Waiter* w)
 
 #endif
 
-static void new_waiter(ErtsPollSet ps)
+static void new_waiter(ErtsPollSet *ps)
 {
     register Waiter* w;
     DWORD tid;			/* Id for thread. */
@@ -732,7 +672,7 @@ static void *break_waiter(void *param)
 static void *threaded_waiter(void *param)
 {
     register Waiter* w = (Waiter *) param;
-    ErtsPollSet ps = (ErtsPollSet) w->xdata;
+    ErtsPollSet *ps = (ErtsPollSet*) w->xdata;
 #ifdef HARD_POLL_DEBUG2
     HANDLE oold_fired[64];
     int num_oold_fired;
@@ -835,9 +775,9 @@ event_happened:
 	    ASSERT(i >= WAIT_OBJECT_0+1);
 	    i -= WAIT_OBJECT_0;
 	    ASSERT(i >= 1);
-	    w->active_events--;
 	    HARDDEBUGF(("i = %d, a,h,t = %d,%d,%d",i,
 			w->active_events, w->highwater, w->total_events));
+	    w->active_events--;
 #ifdef HARD_POLL_DEBUG2
 	    fired[num_fired++] = w->events[i];
 #endif
@@ -867,7 +807,7 @@ event_happened:
  * The actual adding and removing from pollset utilities 
  */
 
-static int set_driver_select(ErtsPollSet ps, HANDLE event, ErtsPollEvents mode)
+static int set_driver_select(ErtsPollSet *ps, HANDLE event, ErtsPollEvents mode)
 {
     int i;
     int best_waiter = -1;	/* The waiter with lowest number of events. */
@@ -957,13 +897,13 @@ static int set_driver_select(ErtsPollSet ps, HANDLE event, ErtsPollEvents mode)
 #endif
     erts_mtx_unlock(&w->mtx);
     START_WAITER(ps,w);
-    HARDDEBUGF(("add select %d %d %d %d",best_waiter,
+    HARDDEBUGF(("%d: add select %d %d %d %d", event, best_waiter,
 		w->active_events,w->highwater,w->total_events));
     return mode;
 }
 
 
-static int cancel_driver_select(ErtsPollSet ps, HANDLE event)
+static int cancel_driver_select(ErtsPollSet *ps, HANDLE event)
 {
     int i;
 
@@ -1018,7 +958,7 @@ static int cancel_driver_select(ErtsPollSet ps, HANDLE event)
  * Interface functions
  */
 
-void  erts_poll_interrupt(ErtsPollSet ps, int set /* bool */)
+void  erts_poll_interrupt(ErtsPollSet *ps, int set /* bool */)
 {
     HARDTRACEF(("In erts_poll_interrupt(%d)",set));
     if (!set)
@@ -1028,35 +968,23 @@ void  erts_poll_interrupt(ErtsPollSet ps, int set /* bool */)
     HARDTRACEF(("Out erts_poll_interrupt(%d)",set));
 }
 
-void erts_poll_interrupt_timed(ErtsPollSet ps,
-			       int set /* bool */,
-			       ErtsMonotonicTime timeout_time)
-{
-    HARDTRACEF(("In erts_poll_interrupt_timed(%d,%ld)",set,timeout_time));
-    if (!set)
-	reset_interrupt(ps);
-    else if (get_timeout_time(ps) > timeout_time)
-	set_interrupt(ps);
-    HARDTRACEF(("Out erts_poll_interrupt_timed"));
-}
-
 
 /*
  * Windows is special, there is actually only one event type, and
  * the only difference between ERTS_POLL_EV_IN and ERTS_POLL_EV_OUT
  * is which driver callback will eventually be called.
  */
-static ErtsPollEvents do_poll_control(ErtsPollSet ps,
-				      ErtsSysFdType fd,
-				      ErtsPollEvents pe,
-				      int on /* bool */)
+static ErtsPollEvents do_poll_control(ErtsPollSet *ps,
+                                      ErtsSysFdType fd,
+                                      ErtsPollOp op,
+                                      ErtsPollEvents pe)
 {
     HANDLE event = (HANDLE) fd;
     ErtsPollEvents mode;
     ErtsPollEvents result;
     ASSERT(event != INVALID_HANDLE_VALUE);
 
-    if (on) {
+    if (op != ERTS_POLL_OP_DEL) {
 	if (pe & ERTS_POLL_EV_IN || !(pe & ERTS_POLL_EV_OUT )) {
 	    mode = ERTS_POLL_EV_IN;
 	} else {
@@ -1069,51 +997,30 @@ static ErtsPollEvents do_poll_control(ErtsPollSet ps,
     return result;
 }
 
-ErtsPollEvents erts_poll_control(ErtsPollSet ps,
+ErtsPollEvents erts_poll_control(ErtsPollSet *ps,
 				 ErtsSysFdType fd,
+                                 ErtsPollOp op,
 				 ErtsPollEvents pe,
-				 int on,
 				 int* do_wake) /* In: Wake up polling thread */
 				               /* Out: Poller is woken */
 {
     ErtsPollEvents result;
-    HARDTRACEF(("In erts_poll_control(0x%08X, %u, %d)",(unsigned long) fd, (unsigned) pe, on));
+    HARDTRACEF(("In erts_poll_control(0x%08X, %s, %s)",
+                (unsigned long) fd, op2str(op), ev2str(pe)));
     ERTS_POLLSET_LOCK(ps);
-    result=do_poll_control(ps,fd,pe,on);
+    result=do_poll_control(ps, fd, op, pe);
     ERTS_POLLSET_UNLOCK(ps);
     *do_wake = 0; /* Never any need to wake polling threads on windows */
     HARDTRACEF(("Out erts_poll_control -> %u",(unsigned) result));
     return result;
 }
 
-void erts_poll_controlv(ErtsPollSet ps,
-			ErtsPollControlEntry pcev[],
-			int len)
-{
-    int i;
-    int hshur = 0;
-    int do_wake = 0;
-
-    HARDTRACEF(("In erts_poll_controlv(%d)",len));
-    ERTS_POLLSET_LOCK(ps);
-
-    for (i = 0; i < len; i++) {
-	pcev[i].events = do_poll_control(ps,
-					 pcev[i].fd,
-					 pcev[i].events,
-					 pcev[i].on);
-    }
-    ERTS_POLLSET_UNLOCK(ps);
-    HARDTRACEF(("Out erts_poll_controlv"));
-}
-
-int erts_poll_wait(ErtsPollSet ps,
+int erts_poll_wait(ErtsPollSet *ps,
 		   ErtsPollResFd pr[],
-		   int *len,
-		   ErtsMonotonicTime timeout_time)
+		   int *len)
 {
     int no_fds;
-    DWORD timeout;
+    DWORD timeout = INFINITE;
     EventData* ev;
     int res = 0;
     int num = 0;
@@ -1124,42 +1031,6 @@ int erts_poll_wait(ErtsPollSet ps,
     HARDTRACEF(("In erts_poll_wait"));
     ERTS_POLLSET_LOCK(ps);
 
-    if (!is_io_ready(ps) && ps->restore_events) {
-	HARDDEBUGF(("Restore events: %d",ps->num_waiters));
-	ps->restore_events = 0;
-	for (i = 0; i < ps->num_waiters; ++i) {
-	   Waiter* w = ps->waiter[i];
-	   erts_mtx_lock(&w->mtx);
-	   HARDDEBUGF(("Maybe reset %d %d %d %d",i,
-		       w->active_events,w->highwater,w->total_events));
-	   if (w->active_events < w->total_events) {
-	       erts_mtx_unlock(&w->mtx);
-	       STOP_WAITER(ps,w);
-	       HARDDEBUGF(("Need reset %d %d %d %d",i,
-			   w->active_events,w->highwater,w->total_events));
-	       erts_mtx_lock(&w->mtx);	       
-	       /* Need reset, just check that it doesn't have got more to tell */
-	       if (w->highwater != w->active_events) {
-		   HARDDEBUGF(("Oups!"));
-		   /* Oups, got signalled before we took the lock, can't reset */
-		   if(!is_io_ready(ps)) {
-		       erts_exit(ERTS_ERROR_EXIT,"Internal error: "
-				"Inconsistent io structures in erl_poll.\n");
-		   }
-		   START_WAITER(ps,w);
-		   erts_mtx_unlock(&w->mtx);
-		   ps->restore_events = 1; 
-		   continue;
-	       }
-	       w->active_events = w->highwater =  w->total_events;
-	       START_WAITER(ps,w);
-	       erts_mtx_unlock(&w->mtx);
-	   } else {
-	       erts_mtx_unlock(&w->mtx);
-	   }
-	}
-    }
-
     no_fds = *len;
 
 #ifdef ERTS_POLL_MAX_RES
@@ -1167,22 +1038,29 @@ int erts_poll_wait(ErtsPollSet ps,
 	no_fds = ERTS_POLL_MAX_RES;
 #endif
 
-    timeout = poll_wait_timeout(ps, timeout_time);
-
-    /*HARDDEBUGF(("timeout = %ld",(long) timeout));*/
+    ResetEvent(ps->event_io_ready);
+    /*
+     * Since we don't know the internals of ResetEvent() we issue
+     * a memory barrier as a safety precaution ensuring that
+     * the load of wakeup_state wont be reordered with stores made
+     * by ResetEvent().
+     */
+    ERTS_THR_MEMORY_BARRIER;
+    if (erts_atomic32_read_nob(&ps->wakeup_state) != ERTS_POLL_NOT_WOKEN)
+       timeout = (DWORD) 0;
 
-    if (timeout > 0 && !erts_atomic32_read_nob(&break_waiter_state)) {
+    if (!erts_atomic32_read_nob(&break_waiter_state)) {
 	HANDLE harr[2] = {ps->event_io_ready, break_happened_event};
 	int num_h = 2;
-        ERTS_MSACC_PUSH_STATE_M();
+        ERTS_MSACC_PUSH_STATE();
 
 	HARDDEBUGF(("Start waiting %d [%d]",num_h, (int) timeout));
 	ERTS_POLLSET_UNLOCK(ps);
 	erts_thr_progress_prepare_wait(NULL);
-        ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP);
+        ERTS_MSACC_SET_STATE_CACHED(ERTS_MSACC_STATE_SLEEP);
 	WaitForMultipleObjects(num_h, harr, FALSE, timeout);
 	erts_thr_progress_finalize_wait(NULL);
-        ERTS_MSACC_POP_STATE_M();
+        ERTS_MSACC_POP_STATE();
 	ERTS_POLLSET_LOCK(ps);
 	HARDDEBUGF(("Stop waiting %d [%d]",num_h, (int) timeout));
 	woke_up(ps);
@@ -1215,7 +1093,7 @@ int erts_poll_wait(ErtsPollSet ps,
 
     reset_io_ready(ps);
 
-    n = ps->num_waiters;	
+    n = ps->num_waiters;
 
     for (i = 0; i < n; i++) {
 	Waiter* w = ps->waiter[i];
@@ -1241,11 +1119,10 @@ int erts_poll_wait(ErtsPollSet ps,
 		HARDDEBUGF(("To many FD's to report!"));
 		goto done;
 	    }
-	    HARDDEBUGF(("SET! Restore events"));
-	    ps->restore_events = 1;
 	    HARDDEBUGF(("Report %d,%d",i,j));
-	    pr[num].fd = (ErtsSysFdType) w->events[j];
-	    pr[num].events = w->evdata[j]->mode;
+	    ERTS_POLL_RES_SET_FD(&pr[num], w->events[j]);
+	    ERTS_POLL_RES_SET_EVTS(&pr[num], w->evdata[j]->mode);
+            remove_event_from_set(w, j);
 #ifdef HARD_POLL_DEBUG
 	    poll_debug_reported(w->events[j],w->highwater | (j << 16));
 	    poll_debug_reported(w->events[j],first | (last << 16));
@@ -1253,13 +1130,14 @@ int erts_poll_wait(ErtsPollSet ps,
 	    ++num;
 	}
 
+        w->total_events = w->highwater = w->active_events;
+
 #ifdef DEBUG
 	consistency_check(w);
 #endif
 	erts_mtx_unlock(&w->mtx);
     }
  done:
-    set_timeout_time(ps, ERTS_MONOTONIC_TIME_MAX);
     *len = num;
     ERTS_POLLSET_UNLOCK(ps);
     HARDTRACEF(("Out erts_poll_wait"));
@@ -1274,7 +1152,7 @@ int erts_poll_max_fds(void)
     return res;
 }
 
-void erts_poll_info(ErtsPollSet ps,
+void erts_poll_info(ErtsPollSet *ps,
 		    ErtsPollInfo *pip)
 {
     Uint size = 0;
@@ -1284,7 +1162,7 @@ void erts_poll_info(ErtsPollSet ps,
     HARDTRACEF(("In erts_poll_info"));
     ERTS_POLLSET_LOCK(ps);
 
-    size += sizeof(struct ErtsPollSet_);
+    size += sizeof(struct erts_pollset);
     size += sizeof(Waiter *) * ps->allocated_waiters;
     for (i = 0; i < ps->num_waiters; ++i) {
 	Waiter *w = ps->waiter[i];
@@ -1299,16 +1177,12 @@ void erts_poll_info(ErtsPollSet ps,
 
     pip->primary = "WaitForMultipleObjects"; 
 
-    pip->fallback = NULL;
-
     pip->kernel_poll = NULL;
 
     pip->memory_size = size;
 
     pip->poll_set_size = num_events;
 
-    pip->fallback_poll_set_size = 0;
-
     pip->lazy_updates = 0;
 
     pip->pending_updates = 0;
@@ -1316,6 +1190,8 @@ void erts_poll_info(ErtsPollSet ps,
     pip->batch_updates = 0;
 
     pip->concurrent_updates = 0;
+
+    pip->is_fallback = 0;
     ERTS_POLLSET_UNLOCK(ps);
 
     pip->max_fds = erts_poll_max_fds();
@@ -1323,10 +1199,10 @@ void erts_poll_info(ErtsPollSet ps,
 
 }
 
-ErtsPollSet erts_poll_create_pollset(void)
+ErtsPollSet *erts_poll_create_pollset(int no)
 {
-    ErtsPollSet ps = SEL_ALLOC(ERTS_ALC_T_POLLSET,
-			       sizeof(struct ErtsPollSet_));
+    ErtsPollSet *ps = SEL_ALLOC(ERTS_ALC_T_POLLSET,
+			       sizeof(struct erts_pollset));
     HARDTRACEF(("In erts_poll_create_pollset"));
 
     ps->num_waiters = 0;
@@ -1337,17 +1213,15 @@ ErtsPollSet erts_poll_create_pollset(void)
     ps->standby_wait_counter = 0;
     ps->event_io_ready = CreateManualEvent(FALSE);
     ps->standby_wait_event = CreateManualEvent(FALSE); 
-    ps->restore_events = 0;
 
     erts_atomic32_init_nob(&ps->wakeup_state, ERTS_POLL_NOT_WOKEN);
     erts_mtx_init(&ps->mtx, "pollset", NIL, ERTS_LOCK_FLAGS_CATEGORY_IO);
-    init_timeout_time(ps);
 
     HARDTRACEF(("Out erts_poll_create_pollset"));
     return ps;
 }
 
-void erts_poll_destroy_pollset(ErtsPollSet ps)
+void erts_poll_destroy_pollset(ErtsPollSet *ps)
 {
     int i;
     HARDTRACEF(("In erts_poll_destroy_pollset"));
@@ -1378,14 +1252,16 @@ void erts_poll_destroy_pollset(ErtsPollSet ps)
 /*
  * Actually mostly initializes the friend module sys_interrupt...
  */
-void  erts_poll_init(void)
+void  erts_poll_init(int *concurrent_updates)
 {
-    erts_tid_t thread;
 
 #ifdef HARD_POLL_DEBUG
     poll_debug_init();
 #endif
 
+    if (concurrent_updates)
+        *concurrent_updates = 0;
+
     HARDTRACEF(("In erts_poll_init"));
     erts_sys_break_event = CreateManualEvent(FALSE);
 
@@ -1394,21 +1270,26 @@ void  erts_poll_init(void)
     break_happened_event = CreateManualEvent(FALSE);
     erts_atomic32_init_nob(&break_waiter_state, 0); 
 
+    HARDTRACEF(("Out erts_poll_init"));
+}
+
+void erts_poll_late_init(void)
+{
+    erts_tid_t thread;
     erts_thr_create(&thread, &break_waiter, NULL, NULL);
     ERTS_UNSET_BREAK_REQUESTED;
-    HARDTRACEF(("Out erts_poll_init"));
 }
 
 /*
  * Non windows friendly interface, not used when fd's are not continous
  */
-void  erts_poll_get_selected_events(ErtsPollSet ps,
+void  erts_poll_get_selected_events(ErtsPollSet *ps,
 				    ErtsPollEvents ev[],
 				    int len)
 {
     int i;
     HARDTRACEF(("In erts_poll_get_selected_events"));
     for (i = 0; i < len; ++i)
-	ev[i] = 0;
+	ev[i] = ERTS_POLL_EV_NONE;
     HARDTRACEF(("Out erts_poll_get_selected_events"));
 }
diff --git a/erts/emulator/sys/win32/erl_win_dyn_driver.h b/erts/emulator/sys/win32/erl_win_dyn_driver.h
index 6f28d513c2..0d1a6d4c87 100644
--- a/erts/emulator/sys/win32/erl_win_dyn_driver.h
+++ b/erts/emulator/sys/win32/erl_win_dyn_driver.h
@@ -40,7 +40,6 @@ WDD_TYPEDEF(int, driver_exit, (ErlDrvPort, int));
 WDD_TYPEDEF(int, driver_failure_eof, (ErlDrvPort));
 WDD_TYPEDEF(void, erl_drv_busy_msgq_limits, (ErlDrvPort, ErlDrvSizeT *, ErlDrvSizeT *));
 WDD_TYPEDEF(int, driver_select, (ErlDrvPort, ErlDrvEvent, int, int));
-WDD_TYPEDEF(int, driver_event, (ErlDrvPort, ErlDrvEvent,ErlDrvEventData));
 WDD_TYPEDEF(int, driver_output, (ErlDrvPort, char *, ErlDrvSizeT));
 WDD_TYPEDEF(int, driver_output2, (ErlDrvPort, char *, ErlDrvSizeT ,char *, ErlDrvSizeT));
 WDD_TYPEDEF(int, driver_output_binary, (ErlDrvPort, char *, ErlDrvSizeT, ErlDrvBinary*, ErlDrvSizeT, ErlDrvSizeT));
@@ -162,7 +161,7 @@ typedef struct {
     WDD_FTYPE(driver_failure_eof) *driver_failure_eof;
     WDD_FTYPE(erl_drv_busy_msgq_limits) *erl_drv_busy_msgq_limits;
     WDD_FTYPE(driver_select) *driver_select;
-    WDD_FTYPE(driver_event) *driver_event;
+    void *REMOVED_driver_event;
     WDD_FTYPE(driver_output) *driver_output;
     WDD_FTYPE(driver_output2) *driver_output2;
     WDD_FTYPE(driver_output_binary) *driver_output_binary;
@@ -276,7 +275,6 @@ extern TWinDynDriverCallbacks WinDynDriverCallbacks;
 #define driver_failure_eof (WinDynDriverCallbacks.driver_failure_eof)
 #define erl_drv_busy_msgq_limits (WinDynDriverCallbacks.erl_drv_busy_msgq_limits)
 #define driver_select (WinDynDriverCallbacks.driver_select)
-#define driver_event (WinDynDriverCallbacks.driver_event)
 #define driver_output (WinDynDriverCallbacks.driver_output)
 #define driver_output2 (WinDynDriverCallbacks.driver_output2)
 #define driver_output_binary (WinDynDriverCallbacks.driver_output_binary)
@@ -414,7 +412,7 @@ do {				                        \
 ((W).driver_failure_eof) = driver_failure_eof;		\
 ((W).erl_drv_busy_msgq_limits) = erl_drv_busy_msgq_limits;\
 ((W).driver_select) = driver_select;			\
-((W).driver_event) = driver_event;			\
+((W).REMOVED_driver_event) = NULL;			\
 ((W).driver_output) = driver_output;			\
 ((W).driver_output2) = driver_output2;			\
 ((W).driver_output_binary) = driver_output_binary;	\
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index b23dbecbac..0598a12351 100644
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -3235,40 +3235,16 @@ void erl_sys_init(void)
 	SetStdHandle(STD_ERROR_HANDLE, GetStdHandle(STD_OUTPUT_HANDLE));
     }
     erts_sys_init_float();
-    erts_init_check_io();
 
     /* Suppress windows error message popups */
     SetErrorMode(SetErrorMode(0) |
 		 SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX); 
 }
+void erts_poll_late_init(void);
 
 void
 erl_sys_late_init(void)
 {
     /* do nothing */
+    erts_poll_late_init();
 }
-
-void
-erts_sys_schedule_interrupt(int set)
-{
-    erts_check_io_interrupt(set);
-}
-
-void
-erts_sys_schedule_interrupt_timed(int set, ErtsMonotonicTime timeout_time)
-{
-    erts_check_io_interrupt_timed(set, timeout_time);
-}
-
-/*
- * Called from schedule() when it runs out of runnable processes,
- * or when Erlang code has performed INPUT_REDUCTIONS reduction
- * steps. runnable == 0 iff there are no runnable Erlang processes.
- */
-void
-erl_sys_schedule(int runnable)
-{
-    erts_check_io(!runnable);
-    ERTS_LC_ASSERT(!erts_thr_progress_is_blocking());
-}
-
diff --git a/erts/emulator/test/Makefile b/erts/emulator/test/Makefile
index 370fcb0f3a..bf00de2204 100644
--- a/erts/emulator/test/Makefile
+++ b/erts/emulator/test/Makefile
@@ -57,6 +57,7 @@ MODULES= \
 	dirty_nif_SUITE \
 	distribution_SUITE \
 	driver_SUITE \
+	dump_SUITE \
 	efile_SUITE \
 	erts_debug_SUITE \
 	estone_SUITE \
@@ -71,6 +72,7 @@ MODULES= \
 	hash_SUITE \
 	hibernate_SUITE \
 	hipe_SUITE \
+	iovec_SUITE \
 	list_bif_SUITE \
 	lttng_SUITE \
 	lcnt_SUITE \
diff --git a/erts/emulator/test/alloc_SUITE.erl b/erts/emulator/test/alloc_SUITE.erl
index f0871ead7d..5e5cd6f578 100644
--- a/erts/emulator/test/alloc_SUITE.erl
+++ b/erts/emulator/test/alloc_SUITE.erl
@@ -89,10 +89,11 @@ mmsc_flags() ->
 mmsc_flags(Env) ->
     case os:getenv(Env) of
 	false -> false;
-	V -> case string:str(V, "+MMsc") of
-		 0 -> false;
-		 P -> Env ++ "=" ++ string:substr(V, P)
-	     end
+	V ->
+            case string:find(V, "+MMsc") of
+                nomatch -> false;
+                SubStr -> Env ++ "=" ++ SubStr
+            end
     end.
 
 erts_mmap_do(Config, SCO, SCRPM, SCRFSD) ->
diff --git a/erts/emulator/test/beam_SUITE.erl b/erts/emulator/test/beam_SUITE.erl
index 6a54fa87e0..bdf8f6c34e 100644
--- a/erts/emulator/test/beam_SUITE.erl
+++ b/erts/emulator/test/beam_SUITE.erl
@@ -113,20 +113,41 @@ packed_registers(Config) when is_list(Config) ->
 		   VarName = list_to_atom("M"++integer_to_list(V)),
 		   merl:var(VarName)
 	       end || V <- Seq],
+    MoreNewVars = [begin
+                       VarName = list_to_atom("MM"++integer_to_list(V)),
+                       merl:var(VarName)
+                   end || V <- Seq],
+    TupleEls = [?Q("id(_@Value@)") || {_,Value} <- S0],
     S = [?Q("_@Var = id(_@Value@)") || {Var,Value} <- S0],
     Code = ?Q(["-module('@Mod@').\n"
 	       "-export([f/0]).\n"
 	       "f() ->\n"
+               "Tuple = id({_@TupleEls}),\n"
+               "{_@MoreNewVars} = Tuple,\n"
 	       "_@S,\n"
 	       "_ = id(0),\n"
 	       "L = [_@Vars],\n"
 	       "_ = id(1),\n"
 	       "[_@NewVars] = L,\n"		%Test get_list/3.
 	       "_ = id(2),\n"
-	       "id([_@Vars,_@NewVars]).\n"
+	       "id([_@Vars,_@NewVars,_@MoreNewVars]).\n"
 	       "id(I) -> I.\n"]),
     merl:compile_and_load(Code),
-    CombinedSeq = Seq ++ Seq,
+
+    %% Optionally print the generated code.
+    PrintCode = false,                          %Change to true to print code.
+
+    case PrintCode of
+        false ->
+            ok;
+        true ->
+            merl:print(Code),
+            erts_debug:df(Mod),
+            {ok,Dis} = file:read_file(atom_to_list(Mod)++".dis"),
+            io:put_chars(Dis)
+    end,
+
+    CombinedSeq = Seq ++ Seq ++ Seq,
     CombinedSeq = Mod:f(),
 
     %% Clean up.
diff --git a/erts/emulator/test/bif_SUITE.erl b/erts/emulator/test/bif_SUITE.erl
index 2320870a0e..e1b42e5d85 100644
--- a/erts/emulator/test/bif_SUITE.erl
+++ b/erts/emulator/test/bif_SUITE.erl
@@ -525,6 +525,8 @@ binary_to_atom(Config) when is_list(Config) ->
     ?BADARG(binary_to_atom(id(<<255>>), utf8)),
     ?BADARG(binary_to_atom(id(<<255,0>>), utf8)),
     ?BADARG(binary_to_atom(id(<<16#C0,16#80>>), utf8)), %Overlong 0.
+    <<B:1/binary, _/binary>> = id(<<194, 163>>), %Truncated character ERL-474
+    ?BADARG(binary_to_atom(B, utf8)),
 
     %% system_limit failures.
     ?SYS_LIMIT(binary_to_atom(id(<<0:512/unit:8,255>>), utf8)),
@@ -729,10 +731,12 @@ erlang_halt(Config) when is_list(Config) ->
                                  [broken_halt, "Validate correct crash dump"]),
     {ok,_} = wait_until_stable_size(CrashDump,-1),
     {ok, Bin} = file:read_file(CrashDump),
-    case {string:str(binary_to_list(Bin),"\n=end\n"),
-          string:str(binary_to_list(Bin),"\r\n=end\r\n")} of
-        {0,0} -> ct:fail("Could not find end marker in crash dump");
-        _ -> ok
+    case {string:find(Bin, <<"\n=end\n">>),
+          string:find(Bin, <<"\r\n=end\r\n">>)} of
+        {nomatch,nomatch} ->
+            ct:fail("Could not find end marker in crash dump");
+        {_,_} ->
+            ok
     end.
 
 wait_until_stable_size(_File,-10) ->
@@ -777,14 +781,20 @@ is_builtin(_Config) ->
 		       {F,A} <- M:module_info(exports)],
     Exp = ordsets:from_list(Exp0),
 
-    %% erlang:apply/3 is considered to be built-in, but is not
-    %% implemented as other BIFs.
+    %% Built-ins implemented as special instructions.
+    Instructions = [{erlang,apply,2},{erlang,apply,3},{erlang,yield,0}],
 
-    Builtins0 = [{erlang,apply,3}|erlang:system_info(snifs)],
+    Builtins0 = Instructions ++ erlang:system_info(snifs),
     Builtins = ordsets:from_list(Builtins0),
-    NotBuiltin = ordsets:subtract(Exp, Builtins),
-    _ = [true = erlang:is_builtin(M, F, A) || {M,F,A} <- Builtins],
-    _ = [false = erlang:is_builtin(M, F, A) || {M,F,A} <- NotBuiltin],
+
+    Fakes = [{M,F,42} || {M,F,_} <- Instructions],
+    All = ordsets:from_list(Fakes ++ Exp),
+    NotBuiltin = ordsets:subtract(All, Builtins),
+
+    _ = [{true,_} = {erlang:is_builtin(M, F, A),MFA} ||
+            {M,F,A}=MFA <- Builtins],
+    _ = [{false,_} = {erlang:is_builtin(M, F, A),MFA} ||
+            {M,F,A}=MFA <- NotBuiltin],
 
     ok.
 
diff --git a/erts/emulator/test/binary_SUITE.erl b/erts/emulator/test/binary_SUITE.erl
index 4d17276e5c..61536bacd7 100644
--- a/erts/emulator/test/binary_SUITE.erl
+++ b/erts/emulator/test/binary_SUITE.erl
@@ -599,6 +599,9 @@ bad_binary_to_term(Config) when is_list(Config) ->
 
     %% Bad float.
     bad_bin_to_term(<<131,70,-1:64>>),
+
+    %% Truncated UTF8 character (ERL-474)
+    bad_bin_to_term(<<131,119,1,194,163>>),
     ok.
 
 bad_bin_to_term(BadBin) ->
diff --git a/erts/emulator/test/decode_packet_SUITE.erl b/erts/emulator/test/decode_packet_SUITE.erl
index 54ee4d5567..0ccdbd7ee8 100644
--- a/erts/emulator/test/decode_packet_SUITE.erl
+++ b/erts/emulator/test/decode_packet_SUITE.erl
@@ -239,7 +239,7 @@ packet_size(Config) when is_list(Config) ->
     %% Test OTP-9389, long HTTP header lines.
     Opts = [{packet_size, 128}],
     Pkt = list_to_binary(["GET / HTTP/1.1\r\nHost: localhost\r\nLink: /",
-                          string:chars($Y, 64), "\r\n\r\n"]),
+                          lists:duplicate(64, $Y), "\r\n\r\n"]),
     <<Pkt1:50/binary, Pkt2/binary>> = Pkt,
     {ok, {http_request,'GET',{abs_path,"/"},{1,1}}, Rest1} =
     erlang:decode_packet(http, Pkt1, Opts),
@@ -250,7 +250,7 @@ packet_size(Config) when is_list(Config) ->
     erlang:decode_packet(httph, list_to_binary([Rest2, Pkt2]), Opts),
 
     Pkt3 = list_to_binary(["GET / HTTP/1.1\r\nHost: localhost\r\nLink: /",
-                           string:chars($Y, 129), "\r\n\r\n"]),
+                           lists:duplicate(129, $Y), "\r\n\r\n"]),
     {ok, {http_request,'GET',{abs_path,"/"},{1,1}}, Rest3} =
     erlang:decode_packet(http, Pkt3, Opts),
     {ok, {http_header,_,'Host',_,"localhost"}, Rest4} =
@@ -509,9 +509,9 @@ decode_line(Bin,MaxLen) ->
     end.
 
 find_in_binary(Byte, Bin) ->
-    case string:chr(binary_to_list(Bin),Byte) of
-        0 -> notfound;	    
-        P -> P
+    case string:find(Bin, [Byte]) of
+        nomatch -> notfound;
+        Suffix -> byte_size(Bin) - byte_size(Suffix) + 1
     end.    
 
 ssl(Config) when is_list(Config) ->
@@ -562,7 +562,7 @@ decode_pkt(Type,Bin,Opts) ->
 otp_9389(Config) when is_list(Config) ->
     Opts = [{packet_size, 16384}, {line_length, 3000}],
     Pkt = list_to_binary(["GET / HTTP/1.1\r\nHost: localhost\r\nLink: /",
-                          string:chars($X, 8192),
+                          lists:duplicate(8192, $X),
                           "\r\nContent-Length: 0\r\n\r\n"]),
     <<Pkt1:5000/binary, Pkt2/binary>> = Pkt,
     {ok, {http_request,'GET',{abs_path,"/"},{1,1}}, Rest1} =
diff --git a/erts/emulator/test/distribution_SUITE.erl b/erts/emulator/test/distribution_SUITE.erl
index b4ec99f902..2d0ae9c83e 100644
--- a/erts/emulator/test/distribution_SUITE.erl
+++ b/erts/emulator/test/distribution_SUITE.erl
@@ -56,6 +56,7 @@
          bad_dist_ext_process_info/1,
          bad_dist_ext_control/1,
          bad_dist_ext_connection_id/1,
+         bad_dist_ext_size/1,
 	 start_epmd_false/1, epmd_module/1]).
 
 %% Internal exports.
@@ -92,6 +93,7 @@ groups() ->
       [dist_auto_connect_never, dist_auto_connect_once]},
      {bad_dist_ext, [],
       [bad_dist_ext_receive, bad_dist_ext_process_info,
+       bad_dist_ext_size,
        bad_dist_ext_control, bad_dist_ext_connection_id]}].
 
 %% Tests pinging a node in different ways.
@@ -418,18 +420,20 @@ make_busy(Node, Time) when is_integer(Time) ->
     Own = 500,
     freeze_node(Node, Time+Own),
     Data = make_busy_data(),
+    DCtrl = dctrl(Node),
     %% first make port busy
     Pid = spawn_link(fun () ->
                              forever(fun () ->
-                                             dport_reg_send(Node,
-                                                            '__noone__',
-                                                            Data)
+                                             dctrl_dop_reg_send(Node,
+                                                                '__noone__',
+                                                                Data)
                                      end)
                      end),
     receive after Own -> ok end,
     until(fun () ->
-                  case process_info(Pid, status) of
-                      {status, suspended} -> true;
+                  case {DCtrl, process_info(Pid, status)} of
+                      {DPrt, {status, suspended}} when is_port(DPrt) -> true;
+                      {DPid, {status, waiting}} when is_pid(DPid) -> true;
                       _ -> false
                   end
           end),
@@ -782,8 +786,8 @@ dist_auto_connect_once(Config) when is_list(Config) ->
     {ok, pong} = do_inet_rpc(Sock2,net_adm,ping,[NN]),
     {ok,[NN2]} = do_inet_rpc(Sock,erlang,nodes,[]),
     {ok,[NN]} = do_inet_rpc(Sock2,erlang,nodes,[]),
-    [_,HostPartPeer] = string:tokens(atom_to_list(NN),"@"),
-    [_,MyHostPart] = string:tokens(atom_to_list(node()),"@"),
+    [_,HostPartPeer] = string:lexemes(atom_to_list(NN),"@"),
+    [_,MyHostPart] = string:lexemes(atom_to_list(node()),"@"),
     % Give net_kernel a chance to change the state of the node to up to.
     receive after 1000 -> ok end,
     case HostPartPeer of
@@ -1672,6 +1676,57 @@ bad_dist_ext_connection_id(Config) when is_list(Config) ->
     stop_node(Offender),
     stop_node(Victim).
 
+%% OTP-14661: Bad message is discovered by erts_msg_attached_data_size
+bad_dist_ext_size(Config) when is_list(Config) ->
+    {ok, Offender} = start_node(bad_dist_ext_process_info_offender),
+    %%Prog = "Prog=/home/uabseri/src/otp_new3/bin/cerl -rr -debug",
+    Prog = [],
+    {ok, Victim} = start_node(bad_dist_ext_process_info_victim, [], Prog),
+    start_node_monitors([Offender,Victim]),
+
+    Parent = self(),
+    P = spawn_link(Victim,
+                   fun () ->
+                           Parent ! {self(), started},
+                           receive check_msgs -> ok end,  %% DID CRASH HERE
+                           bad_dist_ext_check_msgs([one]),
+                           Parent ! {self(), messages_checked}
+                   end),
+
+    receive {P, started} -> ok end,
+    P ! one,
+
+    Suspended = make_ref(),
+    S = spawn(Victim,
+              fun () ->
+                      erlang:suspend_process(P),
+                      Parent ! Suspended,
+                      receive after infinity -> ok end
+              end),
+
+    receive Suspended -> ok end,
+    pong = rpc:call(Victim, net_adm, ping, [Offender]),
+    verify_up(Offender, Victim),
+    send_bad_msgs(Offender, P, 1, dmsg_bad_tag()),
+
+    %% Make sure bad msgs has reached Victim
+    rpc:call(Offender, rpc, call, [Victim, erlang, node, []]),
+
+    verify_still_up(Offender, Victim),
+
+    rpc:call(Victim, erlang, process_info, [P, total_heap_size]),
+
+    verify_down(Offender, connection_closed, Victim, killed),
+
+    P ! check_msgs,
+    exit(S, bang),  % resume Victim
+    receive {P, messages_checked} -> ok end,
+
+    unlink(P),
+    verify_no_down(Offender, Victim),
+    stop_node(Offender),
+    stop_node(Victim).
+
 
 bad_dist_struct_check_msgs([]) ->
     receive
@@ -1703,37 +1758,38 @@ bad_dist_ext_check_msgs([M|Ms]) ->
             bad_dist_ext_check_msgs(Ms)
     end.
 
+ensure_dctrl(Node) ->
+    case dctrl(Node) of
+        undefined ->
+            pong = net_adm:ping(Node),
+            dctrl(Node);
+        DCtrl ->
+            DCtrl
+    end.
 
-dport_reg_send(Node, Name, Msg) ->
-    DPrt = case dport(Node) of
-               undefined ->
-                   pong = net_adm:ping(Node),
-                   dport(Node);
-               Prt ->
-                   Prt
-           end,
-    port_command(DPrt, [dmsg_hdr(),
-                        dmsg_ext({?DOP_REG_SEND,
-                                  self(),
-                                  ?COOKIE,
-                                  Name}),
-                        dmsg_ext(Msg)]).
-
-
-dport_send(To, Msg) ->
+dctrl_send(DPrt, Data) when is_port(DPrt) ->
+    port_command(DPrt, Data);
+dctrl_send(DPid, Data) when is_pid(DPid) ->
+    Ref = make_ref(),
+    DPid ! {send, self(), Ref, Data},
+    receive {Ref, Res} -> Res end.
+
+dctrl_dop_reg_send(Node, Name, Msg) ->
+    dctrl_send(ensure_dctrl(Node),
+               [dmsg_hdr(),
+                dmsg_ext({?DOP_REG_SEND,
+                          self(),
+                          ?COOKIE,
+                          Name}),
+                dmsg_ext(Msg)]).
+
+dctrl_dop_send(To, Msg) ->
     Node = node(To),
-    DPrt = case dport(Node) of
-               undefined ->
-                   pong = net_adm:ping(Node),
-                   dport(Node);
-               Prt ->
-                   Prt
-           end,
-    port_command(DPrt, [dmsg_hdr(),
-                        dmsg_ext({?DOP_SEND,
-                                  ?COOKIE,
-                                  To}),
-                        dmsg_ext(Msg)]).
+    dctrl_send(ensure_dctrl(Node),
+               [dmsg_hdr(),
+                dmsg_ext({?DOP_SEND, ?COOKIE, To}),
+                dmsg_ext(Msg)]).
+
 send_bad_structure(Offender,Victim,Bad,WhereToPutSelf) ->
     send_bad_structure(Offender,Victim,Bad,WhereToPutSelf,[]).
 send_bad_structure(Offender,Victim,Bad,WhereToPutSelf,PayLoad) ->
@@ -1743,7 +1799,7 @@ send_bad_structure(Offender,Victim,Bad,WhereToPutSelf,PayLoad) ->
           fun () ->
                   Node = node(Victim),
                   pong = net_adm:ping(Node),
-                  DPrt = dport(Node),
+                  DCtrl = dctrl(Node),
                   Bad1 = case WhereToPutSelf of
                              0 ->
                                  Bad;
@@ -1756,7 +1812,7 @@ send_bad_structure(Offender,Victim,Bad,WhereToPutSelf,PayLoad) ->
                       [] -> [];
                       _Other -> [dmsg_ext(PayLoad)]
                   end,
-                  port_command(DPrt, DData),
+                  dctrl_send(DCtrl, DData),
                   Parent ! {DData,Done}
           end),
     receive
@@ -1775,20 +1831,23 @@ send_bad_structure(Offender,Victim,Bad,WhereToPutSelf,PayLoad) ->
 send_bad_msg(BadNode, To) ->
     send_bad_msgs(BadNode, To, 1).
 
-send_bad_msgs(BadNode, To, Repeat) when is_atom(BadNode),
-                                        is_pid(To),
-                                        is_integer(Repeat) ->
+send_bad_msgs(BadNode, To, Repeat) ->
+    send_bad_msgs(BadNode, To, Repeat, dmsg_bad_atom_cache_ref()).
+
+send_bad_msgs(BadNode, To, Repeat, BadTerm) when is_atom(BadNode),
+                                                 is_pid(To),
+                                                 is_integer(Repeat) ->
     Parent = self(),
     Done = make_ref(),
     spawn_link(BadNode,
                fun () ->
                        Node = node(To),
                        pong = net_adm:ping(Node),
-                       DPrt = dport(Node),
+                       DCtrl = dctrl(Node),
                        DData = [dmsg_hdr(),
                                 dmsg_ext({?DOP_SEND, ?COOKIE, To}),
-                                dmsg_bad_atom_cache_ref()],
-                       repeat(fun () -> port_command(DPrt, DData) end, Repeat),
+                                BadTerm],
+		       repeat(fun () -> dctrl_send(DCtrl, DData) end, Repeat),
                        Parent ! Done
                end),
     receive Done -> ok end.
@@ -1810,11 +1869,12 @@ send_bad_ctl(BadNode, ToNode) when is_atom(BadNode), is_atom(ToNode) ->
                                        replace}),
                        CtlBeginSize = size(Ctl) - size(Replace),
                        <<CtlBegin:CtlBeginSize/binary, Replace/binary>> = Ctl,
-                       port_command(dport(ToNode),
-                                    [dmsg_fake_hdr2(),
-                                     CtlBegin,
-                                     dmsg_bad_atom_cache_ref(),
-                                     dmsg_ext({a, message})]),
+                       DCtrl = dctrl(ToNode),
+                       Data = [dmsg_fake_hdr2(),
+                               CtlBegin,
+                               dmsg_bad_atom_cache_ref(),
+                               dmsg_ext({a, message})],
+                       dctrl_send(DCtrl, Data),
                        Parent ! Done
                end),
     receive Done -> ok end.
@@ -1827,17 +1887,17 @@ send_bad_dhdr(BadNode, ToNode) when is_atom(BadNode), is_atom(ToNode) ->
     spawn_link(BadNode,
                fun () ->
                        pong = net_adm:ping(ToNode),
-                       port_command(dport(ToNode), dmsg_bad_hdr()),
+                       dctrl_send(dctrl(ToNode), dmsg_bad_hdr()),
                        Parent ! Done
                end),
     receive Done -> ok end.
 
-dport(Node) when is_atom(Node) ->
+dctrl(Node) when is_atom(Node) ->
     case catch erts_debug:get_internal_state(available_internal_state) of
         true -> true;
         _ -> erts_debug:set_internal_state(available_internal_state, true)
     end,
-    erts_debug:get_internal_state({dist_port, Node}).
+    erts_debug:get_internal_state({dist_ctrl, Node}).
 
 dmsg_hdr() ->
     [131, % Version Magic
@@ -1874,6 +1934,9 @@ dmsg_ext(Term) ->
 dmsg_bad_atom_cache_ref() ->
     [$R, 137].
 
+dmsg_bad_tag() ->  %% Will fail early at heap size calculation
+    [$?, 66].
+
 start_epmd_false(Config) when is_list(Config) ->
     %% Start a node with the option -start_epmd false.
     {ok, OtherNode} = start_node(start_epmd_false, "-start_epmd false"),
@@ -1979,7 +2042,7 @@ freeze_node(Node, MS) ->
                fun () ->
                        erts_debug:set_internal_state(available_internal_state,
                                                      true),
-                       dport_send(Freezer, DoingIt),
+                       dctrl_dop_send(Freezer, DoingIt),
                        receive after Own -> ok end,
                        erts_debug:set_internal_state(block, MS+Own)
                end),
@@ -2031,7 +2094,7 @@ start_relay_node(Node, Args) ->
                                       [{args, Args ++
                                         " -setcookie "++Cookie++" -pa "++Pa++" "++
                                         RunArg}]),
-    [N,H] = string:tokens(atom_to_list(NN),"@"),
+    [N,H] = string:lexemes(atom_to_list(NN),"@"),
     {ok, Sock} = gen_tcp:accept(LSock),
     pang = net_adm:ping(NN),
     {N,H,Sock}.
diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl
index 5fca191679..475e03087a 100644
--- a/erts/emulator/test/driver_SUITE.erl
+++ b/erts/emulator/test/driver_SUITE.erl
@@ -43,9 +43,9 @@
          outputv_errors/1,
          driver_unloaded/1,
          io_ready_exit/1,
+         use_fallback_pollset/0,
          use_fallback_pollset/1,
          bad_fd_in_pollset/1,
-         driver_event/1,
          fd_change/1,
          steal_control/1,
          otp_6602/1,
@@ -58,11 +58,9 @@
          ioq_exit_ready_output/1,
          ioq_exit_timeout/1,
          ioq_exit_ready_async/1,
-         ioq_exit_event/1,
          ioq_exit_ready_input_async/1,
          ioq_exit_ready_output_async/1,
          ioq_exit_timeout_async/1,
-         ioq_exit_event_async/1,
          zero_extended_marker_garb_drv/1,
          invalid_extended_marker_drv/1,
          larger_major_vsn_drv/1,
@@ -86,6 +84,8 @@
 
 -export([bin_prefix/2]).
 
+-export([get_check_io_total/1]).   % for z_SUITE.erl
+
 -include_lib("common_test/include/ct.hrl").
 
 
@@ -119,17 +119,26 @@
 -define(heap_binary_size, 64).
 
 init_per_testcase(Case, Config) when is_atom(Case), is_list(Config) ->
-    case catch erts_debug:get_internal_state(available_internal_state) of
-        true -> ok;
-        _ -> erts_debug:set_internal_state(available_internal_state, true)
-    end,
+    CIOD = rpc(Config,
+               fun() ->
+                       case catch erts_debug:get_internal_state(available_internal_state) of
+                           true -> ok;
+                           _ -> erts_debug:set_internal_state(available_internal_state, true)
+                       end,
+                       erts_debug:get_internal_state(check_io_debug)
+               end),
     erlang:display({init_per_testcase, Case}),
-    0 = element(1, erts_debug:get_internal_state(check_io_debug)),
+    0 = element(1, CIOD),
     [{testcase, Case}|Config].
 
-end_per_testcase(Case, _Config) ->
+end_per_testcase(Case, Config) ->
     erlang:display({end_per_testcase, Case}),
-    0 = element(1, erts_debug:get_internal_state(check_io_debug)),
+    CIOD = rpc(Config,
+               fun() ->
+                       get_stable_check_io_info(),
+                       erts_debug:get_internal_state(check_io_debug)
+               end),
+    0 = element(1, CIOD),
     ok.
 
 suite() ->
@@ -137,10 +146,13 @@ suite() ->
      {timetrap, {minutes, 1}}].
 
 all() -> %% Keep a_test first and z_test last...
-    [a_test, outputv_errors, outputv_echo, queue_echo, {group, timer},
-     driver_unloaded, io_ready_exit, use_fallback_pollset,
-     bad_fd_in_pollset, driver_event, fd_change,
-     steal_control, otp_6602, driver_system_info_base_ver,
+    [a_test, outputv_errors, outputv_echo, queue_echo,
+     {group, timer},
+     driver_unloaded, io_ready_exit, otp_6602,
+     {group, polling},
+     {group, poll_thread},
+     {group, poll_set},
+     driver_system_info_base_ver,
      driver_system_info_prev_ver,
      driver_system_info_current_ver, driver_monitor,
      {group, ioq_exit}, zero_extended_marker_garb_drv,
@@ -148,7 +160,6 @@ all() -> %% Keep a_test first and z_test last...
      larger_minor_vsn_drv, smaller_major_vsn_drv,
      smaller_minor_vsn_drv, peek_non_existing_queue,
      otp_6879, caller, many_events, missing_callbacks,
-     smp_select, driver_select_use,
      thread_mseg_alloc_cache_clean,
      otp_9302,
      thr_free_drv,
@@ -161,11 +172,18 @@ groups() ->
     [{timer, [],
       [timer_measure, timer_cancel, timer_delay,
        timer_change]},
+     {poll_thread, [], [{group, polling}]},
+     {poll_set, [], [{group, polling}]},
+     {polling, [],
+      [a_test, use_fallback_pollset,
+       bad_fd_in_pollset, fd_change,
+       steal_control, smp_select,
+       driver_select_use, z_test]},
      {ioq_exit, [],
       [ioq_exit_ready_input, ioq_exit_ready_output,
-       ioq_exit_timeout, ioq_exit_ready_async, ioq_exit_event,
+       ioq_exit_timeout, ioq_exit_ready_async,
        ioq_exit_ready_input_async, ioq_exit_ready_output_async,
-       ioq_exit_timeout_async, ioq_exit_event_async]}].
+       ioq_exit_timeout_async]}].
 
 init_per_suite(Config) ->
     Config.
@@ -173,10 +191,28 @@ init_per_suite(Config) ->
 end_per_suite(_Config) ->
     catch erts_debug:set_internal_state(available_internal_state, false).
 
+init_per_group(poll_thread, Config) ->
+    [{node_args, "+IOt 2"} | Config];
+init_per_group(poll_set, Config) ->
+    [{node_args, "+IOt 2 +IOp 2"} | Config];
+init_per_group(polling, Config) ->
+    case proplists:get_value(node_args, Config) of
+        undefined ->
+            Config;
+        Args ->
+            {ok, Node} = start_node(polling, Args),
+            [{node, Node} | Config]
+    end;
 init_per_group(_GroupName, Config) ->
     Config.
 
 end_per_group(_GroupName, Config) ->
+    case proplists:get_value(node, Config) of
+        undefined ->
+            ok;
+        Node ->
+            stop_node(Node)
+    end,
     Config.
 
 %% Test sending bad types to port with an outputv-capable driver.
@@ -778,21 +814,23 @@ io_ready_exit(Config) when is_list(Config) ->
 -define(CHKIO_STOP, 0).
 -define(CHKIO_USE_FALLBACK_POLLSET, 1).
 -define(CHKIO_BAD_FD_IN_POLLSET, 2).
--define(CHKIO_DRIVER_EVENT, 3).
 -define(CHKIO_FD_CHANGE, 4).
 -define(CHKIO_STEAL, 5).
 -define(CHKIO_STEAL_AUX, 6).
 -define(CHKIO_SMP_SELECT, 7).
 -define(CHKIO_DRV_USE, 8).
 
+use_fallback_pollset() ->
+    [{timetrap, {minutes, 2}}].
+
 use_fallback_pollset(Config) when is_list(Config) ->
+    rpc(Config, fun() -> use_fallback_pollset_t(Config) end).
+
+use_fallback_pollset_t(Config) when is_list(Config) ->
     FlbkFun = fun () ->
-                      ChkIoDuring = erlang:system_info(check_io),
-                      case lists:keysearch(fallback_poll_set_size,
-                                           1,
-                                           ChkIoDuring) of
-                          {value,
-                           {fallback_poll_set_size, N}} when N > 0 ->
+                      {Flbk, _} = get_fallback(erlang:system_info(check_io)),
+                      case lists:keysearch(total_poll_set_size, 1, Flbk) of
+                          {value, {total_poll_set_size, N}} when N > 0 ->
                               ok;
                           Error ->
                               ct:fail({failed_to_use_fallback, Error})
@@ -814,6 +852,7 @@ use_fallback_pollset(Config) when is_list(Config) ->
           Skip ->
               {fun () -> ok end, Skip, ok}
       end,
+    io:format("Node = ~p~n",[node()]),
     case chkio_test_fini(chkio_test(Handel,
                                     ?CHKIO_USE_FALLBACK_POLLSET,
                                     fun () ->
@@ -825,27 +864,31 @@ use_fallback_pollset(Config) when is_list(Config) ->
     end.
 
 bad_fd_in_pollset(Config) when is_list(Config) ->
-    chkio_test_fini(chkio_test(chkio_test_init(Config),
-                               ?CHKIO_BAD_FD_IN_POLLSET,
-                               fun () -> sleep(1000) end)).
-
-driver_event(Config) when is_list(Config) ->
-    chkio_test_fini(chkio_test(chkio_test_init(Config),
-                               ?CHKIO_DRIVER_EVENT,
-                               fun () -> sleep(1000) end)).
+    rpc(Config,
+        fun() ->
+                chkio_test_fini(chkio_test(chkio_test_init(Config),
+                                           ?CHKIO_BAD_FD_IN_POLLSET,
+                                           fun () -> sleep(1000) end))
+        end).
 
 fd_change(Config) when is_list(Config) ->
-    chkio_test_fini(chkio_test(chkio_test_init(Config),
-                               ?CHKIO_FD_CHANGE,
-                               fun () -> sleep(1000) end)).
+    rpc(Config,
+        fun() ->
+                chkio_test_fini(chkio_test(chkio_test_init(Config),
+                                           ?CHKIO_FD_CHANGE,
+                                           fun () -> sleep(1000) end))
+        end).
 
 steal_control(Config) when is_list(Config) ->
-    chkio_test_fini(case chkio_test_init(Config) of
-                        {erts_poll_info, _} = Hndl ->
-                            steal_control_test(Hndl);
-                        Skip ->
-                            Skip
-                    end).
+    rpc(Config,
+        fun() ->
+                chkio_test_fini(case chkio_test_init(Config) of
+                                    {erts_poll_info, _} = Hndl ->
+                                        steal_control_test(Hndl);
+                                    Skip ->
+                                        Skip
+                                end)
+        end).
 
 steal_control_test(Hndl = {erts_poll_info, Before}) ->
     Port = open_chkio_port(),
@@ -887,7 +930,7 @@ chkio_test_init(Config) when is_list(Config) ->
     ChkIo = get_stable_check_io_info(),
     case catch lists:keysearch(name, 1, ChkIo) of
         {value, {name, erts_poll}} ->
-            io:format("Before test: ~p~n", [ChkIo]),
+            ct:log("Before test: ~p~n", [ChkIo]),
             Path = proplists:get_value(data_dir, Config),
             erl_ddll:start(),
             ok = load_driver(Path, 'chkio_drv'),
@@ -948,8 +991,9 @@ chkio_test({erts_poll_info, Before},
         "ok" ->
             chk_chkio_port(Port),
             Fun(),
-            During = erlang:system_info(check_io),
+            During = get_check_io_total(erlang:system_info(check_io)),
             erlang:display(During),
+
             0 = element(1, erts_debug:get_internal_state(check_io_debug)),
             io:format("During test: ~p~n", [During]),
             chk_chkio_port(Port),
@@ -1001,22 +1045,83 @@ verify_chkio_state(Before, After) ->
     ok.
 
 get_stable_check_io_info() ->
-    ChkIo = erlang:system_info(check_io),
-    PendUpdNo = case lists:keysearch(pending_updates, 1, ChkIo) of
-                    {value, {pending_updates, PendNo}} ->
-                        PendNo;
-                    false ->
-                        0
-                end,
-    {value, {active_fds, ActFds}} = lists:keysearch(active_fds, 1, ChkIo),
+    get_stable_check_io_info(10).
+get_stable_check_io_info(0) ->
+    get_check_io_total(erlang:system_info(check_io));
+get_stable_check_io_info(N) ->
+    ChkIo = get_check_io_total(erlang:system_info(check_io)),
+    PendUpdNo = proplists:get_value(pending_updates, ChkIo, 0),
+    ActFds = proplists:get_value(active_fds, ChkIo),
     case {PendUpdNo, ActFds} of
         {0, 0} ->
             ChkIo;
         _ ->
-            receive after 10 -> ok end,
-            get_stable_check_io_info()
+            receive after 100 -> ok end,
+            get_stable_check_io_info(N-1)
     end.
 
+%% Merge return from erlang:system_info(check_io)
+%% as if it was one big pollset.
+get_check_io_total(ChkIo) ->
+    ct:log("ChkIo = ~p~n",[ChkIo]),
+    {Fallback, Rest} = get_fallback(ChkIo),
+    add_fallback_infos(Fallback,
+      lists:foldl(fun(Pollset, Acc) ->
+                          lists:zipwith(fun(A, B) ->
+                                                add_pollset_infos(A,B)
+                                        end,
+                                        Pollset, Acc)
+                  end,
+                  hd(Rest), tl(Rest))).
+
+add_pollset_infos({Tag, A}=TA , {Tag, B}=TB) ->
+    case tag_type(Tag) of
+        sum ->
+            {Tag, A + B};
+        const ->
+            case A of
+                B -> TA;
+                _ ->
+                    ct:fail("Unexpected diff in pollsets ~p != ~p",
+                            [TA,TB])
+            end
+    end.
+
+get_fallback([MaybeFallback | ChkIo] = AllChkIo) ->
+    case proplists:get_value(fallback, MaybeFallback) of
+        true ->
+            {MaybeFallback, ChkIo};
+        false ->
+            {undefined, AllChkIo}
+    end.
+
+add_fallback_infos(undefined, Acc) ->
+    Acc;
+add_fallback_infos(Flbk, Acc) ->
+    lists:zipwith(fun({Tag, A}=TA, {Tag, B}=TB) ->
+                          case tag_type(Tag) of
+                              sum -> {Tag, A + B};
+                              const when Tag =:= fallback -> TA;
+                              const -> TB
+                          end
+                  end,
+                  Flbk, Acc).
+
+tag_type(name) -> const;
+tag_type(primary) -> const;
+tag_type(fallback) -> const;
+tag_type(kernel_poll) -> const;
+tag_type(memory_size) -> sum;
+tag_type(total_poll_set_size) -> sum;
+tag_type(lazy_updates) -> const;
+tag_type(pending_updates) -> sum;
+tag_type(batch_updates) -> const;
+tag_type(concurrent_updates) -> const;
+tag_type(max_fds) -> const;
+tag_type(active_fds) -> sum;
+tag_type(poll_threads) -> sum.
+
+
 %% Missed port lock when stealing control of fd from a
 %% driver that didn't use the same lock. The lock checker
 %% used to trigger on this and dump core.
@@ -1087,9 +1192,9 @@ check_driver_system_info_result(Result) ->
     io:format("All names: ~p~n", [?EXPECTED_SYSTEM_INFO_NAMES]),
     io:format("Result: ~p~n", [Result]),
     {[], Ns, DDVSN} = chk_sis(lists:map(fun (Str) ->
-                                                string:tokens(Str, "=")
+                                                string:lexemes(Str, "=")
                                         end,
-                                        string:tokens(Result, " ")),
+                                        string:lexemes(Result, " ")),
                               ?EXPECTED_SYSTEM_INFO_NAMES),
     case {DDVSN,
           drv_vsn_str2tup(erlang:system_info(driver_version))} of
@@ -1336,11 +1441,9 @@ driver_monitor(Config) when is_list(Config) ->
 -define(IOQ_EXIT_READY_OUTPUT, 2).
 -define(IOQ_EXIT_TIMEOUT, 3).
 -define(IOQ_EXIT_READY_ASYNC, 4).
--define(IOQ_EXIT_EVENT, 5).
 -define(IOQ_EXIT_READY_INPUT_ASYNC, 6).
 -define(IOQ_EXIT_READY_OUTPUT_ASYNC, 7).
 -define(IOQ_EXIT_TIMEOUT_ASYNC, 8).
--define(IOQ_EXIT_EVENT_ASYNC, 9).
 
 ioq_exit_test(Config, TestNo) ->
     Drv = ioq_exit_drv,
@@ -1393,9 +1496,6 @@ ioq_exit_timeout(Config) when is_list(Config) ->
 ioq_exit_ready_async(Config) when is_list(Config) ->
     ioq_exit_test(Config, ?IOQ_EXIT_READY_ASYNC).
 
-ioq_exit_event(Config) when is_list(Config) ->
-    ioq_exit_test(Config, ?IOQ_EXIT_EVENT).
-
 ioq_exit_ready_input_async(Config) when is_list(Config) ->
     ioq_exit_test(Config, ?IOQ_EXIT_READY_INPUT_ASYNC).
 
@@ -1405,9 +1505,6 @@ ioq_exit_ready_output_async(Config) when is_list(Config) ->
 ioq_exit_timeout_async(Config) when is_list(Config) ->
     ioq_exit_test(Config, ?IOQ_EXIT_TIMEOUT_ASYNC).
 
-ioq_exit_event_async(Config) when is_list(Config) ->
-    ioq_exit_test(Config, ?IOQ_EXIT_EVENT_ASYNC).
-
 
 vsn_mismatch_test(Config, LoadResult) ->
     Path = proplists:get_value(data_dir, Config),
@@ -1641,7 +1738,7 @@ missing_callbacks(Config) when is_list(Config) ->
 smp_select(Config) when is_list(Config) -> 
     case os:type() of
         {win32,_} -> {skipped, "Test not implemented for this OS"};
-        _ -> smp_select0(Config)
+        _ -> rpc(Config, fun() -> smp_select0(Config) end)
     end.
 
 smp_select0(Config) ->
@@ -1697,7 +1794,7 @@ smp_select_wait(Pids, TimeoutMsg) ->
 driver_select_use(Config) when is_list(Config) -> 
     case os:type() of
         {win32,_} -> {skipped, "Test not implemented for this OS"};
-        _ -> driver_select_use0(Config)
+        _ -> rpc(Config, fun() -> driver_select_use0(Config) end)
     end.
 
 driver_select_use0(Config) ->
@@ -2264,10 +2361,10 @@ count_proc_sched(Ps, PNs) ->
     end.
 
 a_test(Config) when is_list(Config) ->
-    check_io_debug().
+    rpc(Config, fun check_io_debug/0).
 
 z_test(Config) when is_list(Config) ->
-    check_io_debug().
+    rpc(Config, fun check_io_debug/0).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% 		Utilities
@@ -2275,8 +2372,8 @@ z_test(Config) when is_list(Config) ->
 
 check_io_debug() ->
     get_stable_check_io_info(),
-    {NoErrorFds, NoUsedFds, NoDrvSelStructs, NoDrvEvStructs} = CheckIoDebug
-    = erts_debug:get_internal_state(check_io_debug),
+    {NoErrorFds, NoUsedFds, NoDrvSelStructs, NoEnifSelStructs}
+        = CheckIoDebug = erts_debug:get_internal_state(check_io_debug),
     HasGetHost = has_gethost(),
     ct:log("check_io_debug: ~p~n"
            "HasGetHost: ~p",[CheckIoDebug, HasGetHost]),
@@ -2289,7 +2386,7 @@ check_io_debug() ->
             %% one extra used fd that is not selected on
             ok
     end,
-    0 = NoDrvEvStructs,
+    0 = NoEnifSelStructs,
     ok.
 
 has_gethost() ->
@@ -2341,7 +2438,7 @@ wait_until(Fun) ->
     end.
 
 drv_vsn_str2tup(Str) ->
-    [Major, Minor] = string:tokens(Str, "."),
+    [Major, Minor] = string:lexemes(Str, "."),
     {list_to_integer(Major), list_to_integer(Minor)}.
 
 %% Build port data from a template.
@@ -2459,15 +2556,19 @@ sleep(Ms) when is_integer(Ms), Ms >= 0 ->
 
 
 start_node(Config) when is_list(Config) ->
+    start_node(proplists:get_value(testcase, Config));
+start_node(Name) ->
+    start_node(Name, "").
+start_node(NodeName, Args) ->
     Pa = filename:dirname(code:which(?MODULE)),
     Name = list_to_atom(atom_to_list(?MODULE)
                         ++ "-"
-                        ++ atom_to_list(proplists:get_value(testcase, Config))
+                        ++ atom_to_list(NodeName)
                         ++ "-"
                         ++ integer_to_list(erlang:system_time(second))
                         ++ "-"
                         ++ integer_to_list(erlang:unique_integer([positive]))),
-    test_server:start_node(Name, slave, [{args, "-pa "++Pa}]).
+    test_server:start_node(Name, slave, [{args, Args ++ " -pa "++Pa}]).
 
 stop_node(Node) ->
     test_server:stop_node(Node).
@@ -2500,3 +2601,35 @@ driver_alloc_size() ->
                       Sz0+Sz
               end, 0, CS)
     end.
+
+rpc(Config, Fun) ->
+    case proplists:get_value(node, Config) of
+        undefined ->
+            Fun();
+        Node ->
+            Self = self(),
+            Ref = make_ref(),
+            Pid = spawn(Node,
+                        fun() ->
+                                Result
+                                    = try Fun() of
+                                          Res -> Res
+                                      catch E:R ->
+                                              {'EXIT',E,R,erlang:get_stacktrace()}
+                                      end,
+                                Self ! {Ref, Result}
+                        end),
+            MRef = monitor(process, Pid),
+            receive
+                {'DOWN', MRef, _Type, _Object, Info} ->
+                    erlang:error({died, Pid, Info});
+                {Ref, {'EXIT',E,R,ST}} ->
+                    erlang:demonitor(MRef, [flush]),
+                    erlang:raise(E,R,ST);
+                {Ref, Ret} ->
+                    erlang:demonitor(MRef, [flush]),
+                    Ret;
+                Other ->
+                    ct:fail(Other)
+            end
+    end.
diff --git a/erts/emulator/test/driver_SUITE_data/chkio_drv.c b/erts/emulator/test/driver_SUITE_data/chkio_drv.c
index 8e5e81665c..d548c4b1dc 100644
--- a/erts/emulator/test/driver_SUITE_data/chkio_drv.c
+++ b/erts/emulator/test/driver_SUITE_data/chkio_drv.c
@@ -42,7 +42,6 @@
 #define CHKIO_STOP				0
 #define CHKIO_USE_FALLBACK_POLLSET		1
 #define CHKIO_BAD_FD_IN_POLLSET			2
-#define CHKIO_DRIVER_EVENT			3
 #define CHKIO_FD_CHANGE				4
 #define CHKIO_STEAL				5
 #define CHKIO_STEAL_AUX				6
@@ -67,15 +66,6 @@ typedef struct {
 } ChkioFallbackData;
 
 typedef struct {
-    int in_fd;
-    struct erl_drv_event_data in_data;
-    int in_ok;
-    int out_fd;
-    struct erl_drv_event_data out_data;
-    int out_ok;
-} ChkioDriverEvent;
-
-typedef struct {
     int fds[2];
     int same_fd;
 } ChkioFdChange;
@@ -86,14 +76,10 @@ typedef struct {
 
 typedef struct {
     int driver_select_fds[2];
-    int driver_event_fds[2];
-    struct erl_drv_event_data event_data[2];
 } ChkioSteal;
 
 typedef struct {
     int driver_select_fds[2];
-    int driver_event_fds[2];
-    struct erl_drv_event_data event_data[2];
 } ChkioStealAux;
 
 
@@ -141,7 +127,6 @@ static ErlDrvData chkio_drv_start(ErlDrvPort, char *);
 static void chkio_drv_stop(ErlDrvData);
 static void chkio_drv_ready_input(ErlDrvData, ErlDrvEvent);
 static void chkio_drv_ready_output(ErlDrvData, ErlDrvEvent);
-static void chkio_drv_ready_event(ErlDrvData, ErlDrvEvent, ErlDrvEventData);
 static ErlDrvSSizeT chkio_drv_control(ErlDrvData, unsigned int,
 				      char *, ErlDrvSizeT, char **, ErlDrvSizeT);
 static void chkio_drv_timeout(ErlDrvData);
@@ -164,7 +149,7 @@ static ErlDrvEntry chkio_drv_entry = {
     NULL, /* ready_async */
     NULL, /* flush */
     NULL, /* call */
-    chkio_drv_ready_event,
+    NULL, /* unused_event_callback */
 
     ERL_DRV_EXTENDED_MARKER,
     ERL_DRV_EXTENDED_MAJOR_VERSION,
@@ -243,25 +228,6 @@ stop_use_fallback_pollset(ChkioDrvData *cddp)
 }
 
 static void
-stop_driver_event(ChkioDrvData *cddp)
-{
-    if (cddp->test_data) {
-	ChkioDriverEvent *cdep = cddp->test_data;
-	cddp->test_data = NULL;
-
-	if (cdep->in_fd >= 0) {
-	    driver_event(cddp->port, (ErlDrvEvent) (ErlDrvSInt) cdep->in_fd, NULL);
-	    close(cdep->in_fd);
-	}
-	if (cdep->out_fd >= 0) {
-	    driver_event(cddp->port, (ErlDrvEvent) (ErlDrvSInt) cdep->out_fd, NULL);
-	    close(cdep->out_fd);
-	}
-	driver_free(cdep);	    
-    }
-}
-
-static void
 stop_fd_change(ChkioDrvData *cddp)
 {
     if (cddp->test_data) {
@@ -305,14 +271,6 @@ stop_steal(ChkioDrvData *cddp)
 			  (ErlDrvEvent) (ErlDrvSInt) csp->driver_select_fds[1],
 			  DO_WRITE,
 			  0);
-	if (csp->driver_event_fds[0] >= 0)
-	    driver_event(cddp->port,
-			 (ErlDrvEvent) (ErlDrvSInt) csp->driver_event_fds[0],
-			 NULL);
-	if (csp->driver_event_fds[1] >= 0)
-	    driver_event(cddp->port,
-			 (ErlDrvEvent) (ErlDrvSInt) csp->driver_event_fds[1],
-			 NULL);
 	driver_free(csp);
     }
 }
@@ -327,10 +285,6 @@ stop_steal_aux(ChkioDrvData *cddp)
 	    close(csap->driver_select_fds[0]);
 	if (csap->driver_select_fds[1] >= 0)
 	    close(csap->driver_select_fds[1]);
-	if (csap->driver_event_fds[0] >= 0)
-	    close(csap->driver_event_fds[0]);
-	if (csap->driver_event_fds[1] >= 0)
-	    close(csap->driver_event_fds[1]);
 	driver_free(csap);
     }
 }
@@ -354,10 +308,13 @@ static void free_smp_select(ChkioSmpSelect* pip, ErlDrvPort port)
 	abort();
     }
     case Selected:
-	driver_select(port, (ErlDrvEvent)(ErlDrvSInt)pip->read_fd, DO_READ, 0);
-	/*fall through*/ 
     case Opened:
-	close(pip->read_fd);
+        TRACEF(("%T: Close pipe [%d->%d]\n", driver_mk_port(port), pip->write_fd,
+                pip->read_fd));
+        if (pip->wasSelected)
+            driver_select(port, (ErlDrvEvent)(ErlDrvSInt)pip->read_fd, DO_READ|ERL_DRV_USE, 0);
+        else
+            close(pip->read_fd);
 	close(pip->write_fd);
 	pip->state = Closed;
 	break;
@@ -445,9 +402,6 @@ chkio_drv_stop(ErlDrvData drv_data) {
     case CHKIO_BAD_FD_IN_POLLSET:
 	stop_bad_fd_in_pollset(cddp);
 	break;
-    case CHKIO_DRIVER_EVENT:
-	stop_driver_event(cddp);
-	break;
     case CHKIO_FD_CHANGE:
 	stop_fd_change(cddp);
 	break;
@@ -557,6 +511,9 @@ chkio_drv_ready_input(ErlDrvData drv_data, ErlDrvEvent event)
 	    driver_failure_atom(cddp->port, "input_fd_not_found");
 	break;
     }
+    case CHKIO_FD_CHANGE:
+        /* This may be triggered when an fd is closed while being selected on. */
+        break;
     case CHKIO_STEAL:
 	break;
     case CHKIO_STEAL_AUX:
@@ -621,55 +578,6 @@ chkio_drv_ready_input(ErlDrvData drv_data, ErlDrvEvent event)
 }
 
 static void
-chkio_drv_ready_event(ErlDrvData drv_data,
-		      ErlDrvEvent event,
-		      ErlDrvEventData event_data)
-{
-#ifdef UNIX
-    ChkioDrvData *cddp = (ChkioDrvData *) drv_data;
-    switch (cddp->test) {
-    case CHKIO_DRIVER_EVENT: {
-#ifdef HAVE_POLL_H
-	ChkioDriverEvent *cdep = cddp->test_data;
-	int fd = (int) (ErlDrvSInt) event;
-	if (fd == cdep->in_fd) {
-	    if (event_data->events == POLLIN
-		&& event_data->revents == POLLIN) {
-		cdep->in_ok++;
-	    }
-	    else {
-		driver_failure_atom(cddp->port, "invalid_input_fd_events");
-	    }
-	    break;
-	}
-	if (fd == cdep->out_fd) {
-	    if (event_data->events == POLLOUT
-		&& event_data->revents == POLLOUT) {
-		cdep->out_ok++;
-	    }
-	    else {
-		driver_failure_atom(cddp->port, "invalid_output_fd_events");
-	    }
-	    break;
-	}
-#endif
-    }
-    case CHKIO_STEAL:
-#ifdef HAVE_POLL_H
-	break;
-#endif
-    case CHKIO_STEAL_AUX:
-#ifdef HAVE_POLL_H
-	break;
-#endif
-    default:
-	driver_failure_atom(cddp->port, "unexpected_ready_event");
-	break;
-    }
-#endif /* UNIX */
-}
-
-static void
 chkio_drv_timeout(ErlDrvData drv_data)
 {
 #ifdef UNIX
@@ -779,25 +687,6 @@ chkio_drv_control(ErlDrvData drv_data,
 	    res_len = -1;
 	    stop_bad_fd_in_pollset(cddp);
 	    break;
-	case CHKIO_DRIVER_EVENT: {
-	    ChkioDriverEvent *cdep = cddp->test_data;
-	    if (!cdep->in_ok || !cdep->out_ok) {
-		if (!cdep->in_ok)
-		    driver_failure_atom(cddp->port, "got_no_input_events");
-		if (!cdep->out_ok)
-		    driver_failure_atom(cddp->port, "got_no_output_events");
-	    }
-	    else {
-		char *c = driver_alloc(sizeof(char)*2*30);
-		if (!c)
-		    driver_failure_posix(cddp->port, ENOMEM);
-		*rbuf = c;
-		res_len = sprintf(c, "in=%d\nout=%d\n",
-				  cdep->in_ok, cdep->out_ok);
-	    }
-	    stop_driver_event(cddp);
-	    break;
-	}
 	case CHKIO_FD_CHANGE: {
 	    ChkioFdChange *cfcp = cddp->test_data;
 	    if (!cfcp->same_fd)
@@ -937,69 +826,6 @@ chkio_drv_control(ErlDrvData drv_data,
 	res_len = -1;
 	break;
     }
-    case CHKIO_DRIVER_EVENT: {
-#ifndef HAVE_POLL_H
-	res_str = "skip: Need the poll.h header for this test, but it doesn't exist";
-	res_len = -1;
-#else /* HAVE_POLL_H */
-	int in_fd = open("/dev/zero", O_RDONLY);
-	int out_fd = open("/dev/null", O_WRONLY);
-
-	if (in_fd < 0 || out_fd < 0) {
-	    if (in_fd >= 0)
-		close(in_fd);
-	    if (out_fd >= 0)
-		close(out_fd);
-	    driver_failure_posix(cddp->port, errno);
-	}
-	else {
-	    ChkioDriverEvent *cdep = driver_alloc(sizeof(ChkioDriverEvent));
-	    if (!cdep)
-		driver_failure_posix(cddp->port, ENOMEM);
-	    else {
-		int res;
-		cddp->test_data = cdep;
-
-		cdep->in_fd = in_fd;
-		cdep->in_data.events = POLLIN;
-		cdep->in_data.revents = 0;
-		cdep->in_ok = 0;
-
-		res = driver_event(cddp->port,
-				   (ErlDrvEvent) (ErlDrvSInt) in_fd,
-				   &cdep->in_data);
-		if (res < 0) {
-		    res_str = "skip: driver_event() not supported";
-		    res_len = -1;
-		    close(in_fd);
-		    close(out_fd);
-		    cdep->in_fd = -1;
-		    cdep->out_fd = -1;
-		}
-		else {
-		    res_str = "ok";
-		    res_len = -1;
-
-		    cdep->out_fd = out_fd;
-		    cdep->out_data.events = POLLOUT;
-		    cdep->out_data.revents = 0;
-		    cdep->out_ok = 0;
-
-		    res = driver_event(cddp->port,
-				       (ErlDrvEvent) (ErlDrvSInt) out_fd,
-				       &cdep->out_data);
-		    if (res < 0) {
-			close(out_fd);
-			cdep->out_fd = -1;
-			driver_failure_atom(cddp->port, "driver_event_failed");
-		    }
-		}
-
-	    }
-	}
-#endif /* HAVE_POLL_H */
-	break;
-    }
     case CHKIO_FD_CHANGE: {
 	ChkioFdChange *cfcp = driver_alloc(sizeof(ChkioFdChange));
 	if (!cfcp)
@@ -1028,58 +854,19 @@ chkio_drv_control(ErlDrvData drv_data,
 	    res_len = -1;
 	}
 	else {
-	    int driver_event_fds[2];
 	    int driver_select_fds[2];
 	    cddp->test_data = csp; 
 	    memcpy(c, buf, len);
 	    c[len] = '\0';
 	    if (sscanf(c,
-		       "fds:%d:%d:%d:%d",
+		       "fds:%d:%d",
 		       &driver_select_fds[0],
-		       &driver_select_fds[1],
-		       &driver_event_fds[0],
-		       &driver_event_fds[1]) != 4)
-		driver_failure_atom(cddp->port, "bad_input");
+		       &driver_select_fds[1]) != 2)
+                driver_failure_atom(cddp->port, "bad_input");
 	    else {
 		int res = 0;
-		if (driver_event_fds[0] < 0) { /* Have no working driver_event() ... */
-		    csp->driver_select_fds[0] = driver_select_fds[0]; /* In */
-		    csp->driver_select_fds[1] = driver_select_fds[1]; /* Out */
-		    csp->driver_event_fds[0] = -1;
-		    csp->driver_event_fds[1] = -1;
-		}
-		else { /* Have working driver_event() ... */
-#ifndef HAVE_POLL_H
-		    driver_failure_atom(cddp->port, "unexpected_result");
-		    res = -1;
-#else
-		    csp->driver_select_fds[0] = driver_select_fds[0]; /* In */
-		    csp->driver_event_fds[1] = driver_select_fds[1]; /* Out */
-		    csp->driver_event_fds[0] = driver_event_fds[0]; /* In */
-		    csp->driver_select_fds[1] = driver_event_fds[1]; /* Out */
-
-		    /* Steal with driver_event() */
-
-		    csp->event_data[0].events = POLLIN;
-		    csp->event_data[0].revents = 0;
-		    res = driver_event(cddp->port,
-				       (ErlDrvEvent) (ErlDrvSInt) csp->driver_event_fds[0],
-				       &csp->event_data[0]);
-		    if (res < 0)
-			driver_failure_atom(cddp->port,
-					    "driver_event_failed_to_steal");
-		    if (res >= 0) {
-			csp->event_data[1].events = POLLOUT;
-			csp->event_data[1].revents = 0;
-			res = driver_event(cddp->port,
-					   (ErlDrvEvent) (ErlDrvSInt) csp->driver_event_fds[1],
-					   &csp->event_data[1]);
-			if (res < 0)
-			    driver_failure_atom(cddp->port,
-						"driver_event_failed_to_steal");
-		    }
-#endif
-		}
+                csp->driver_select_fds[0] = driver_select_fds[0]; /* In */
+                csp->driver_select_fds[1] = driver_select_fds[1]; /* Out */
 
 		/* Steal with driver_select() */
 		if (res >= 0) {
@@ -1109,37 +896,17 @@ chkio_drv_control(ErlDrvData drv_data,
 	break;
     }
     case CHKIO_STEAL_AUX: {
-	int read_fds[2];
-	int write_fds[2];
+	int read_fd;
+	int write_fd;
 
-	read_fds[0] = open("/dev/zero", O_RDONLY);
-	write_fds[0] = open("/dev/null", O_WRONLY);
-
-#ifdef HAVE_POLL_H
-	read_fds[1] = open("/dev/zero", O_RDONLY);
-	write_fds[1] = open("/dev/null", O_WRONLY);
-#else
-	read_fds[1] = -1;
-	write_fds[1] = -1;
-#endif
+	read_fd = open("/dev/zero", O_RDONLY);
+	write_fd = open("/dev/null", O_WRONLY);
 	
-	if (read_fds[0] < 0
-	    || write_fds[0] < 0
-#ifdef HAVE_POLL_H
-	    || read_fds[1] < 0 
-	    || write_fds[1] < 0
-#endif
-	    ) {
-	    if (read_fds[0] < 0)
-		close(read_fds[0]);
-	    if (write_fds[0] < 0)
-		close(write_fds[0]);
-#ifdef HAVE_POLL_H
-	    if (read_fds[1] < 0)
-		close(read_fds[1]);
-	    if (write_fds[1] < 0)
-		close(write_fds[1]);
-#endif
+	if (read_fd < 0 || write_fd < 0) {
+	    if (read_fd < 0)
+		close(read_fd);
+	    if (write_fd < 0)
+		close(write_fd);
 	    driver_failure_posix(cddp->port, errno);
 	}
 	else {
@@ -1153,11 +920,8 @@ chkio_drv_control(ErlDrvData drv_data,
 		int res;
 		cddp->test_data = csap;
 
-		csap->driver_select_fds[0] = read_fds[0];
-		csap->driver_select_fds[1] = write_fds[0];
-
-		csap->driver_event_fds[0] = read_fds[1];
-		csap->driver_event_fds[1] = write_fds[1];
+		csap->driver_select_fds[0] = read_fd;
+		csap->driver_select_fds[1] = write_fd;
 
 		res = driver_select(cddp->port,
 				    (ErlDrvEvent) (ErlDrvSInt) csap->driver_select_fds[0],
@@ -1173,32 +937,6 @@ chkio_drv_control(ErlDrvData drv_data,
 		    if (res < 0)
 			driver_failure_atom(cddp->port, "driver_select_failed");
 		}
-#ifdef HAVE_POLL_H
-		if (res >= 0) {
-		    csap->event_data[0].events = POLLIN;
-		    csap->event_data[0].revents = 0;
-		    res = driver_event(cddp->port,
-				       (ErlDrvEvent) (ErlDrvSInt) csap->driver_event_fds[0],
-				       &csap->event_data[0]);
-		    if (res < 0) {
-			close(csap->driver_event_fds[0]);
-			csap->driver_event_fds[0] = -1;
-			close(csap->driver_event_fds[1]);
-			csap->driver_event_fds[1] = -1;
-			res = 0;
-		    }
-		    else {
-			csap->event_data[1].events = POLLOUT;
-			csap->event_data[1].revents = 0;
-			res = driver_event(cddp->port,
-					   (ErlDrvEvent) (ErlDrvSInt) csap->driver_event_fds[1],
-					   &csap->event_data[1]);
-			if (res < 0)
-			    driver_failure_atom(cddp->port,
-						"driver_event_failed");
-		    }
-		}
-#endif
 		if (res < 0) {
 		    res_str = "error";
 		    res_len = -1;
@@ -1213,11 +951,9 @@ chkio_drv_control(ErlDrvData drv_data,
 		    else {
 			*rbuf = c;
 			res_len = sprintf(c,
-					  "fds:%d:%d:%d:%d",
+					  "fds:%d:%d",
 					  csap->driver_select_fds[0],
-					  csap->driver_select_fds[1],
-					  csap->driver_event_fds[0],
-					  csap->driver_event_fds[1]);
+					  csap->driver_select_fds[1]);
 		    }
 		}
 	    }
@@ -1257,7 +993,7 @@ chkio_drv_control(ErlDrvData drv_data,
 		}
 		TRACEF(("%T: Created pipe [%d->%d]\n", cddp->id, fds[1], fds[0]));
 		pip->read_fd = fds[0];
-		pip->write_fd = fds[1];	       
+		pip->write_fd = fds[1];
 		pip->state = Opened;
 		pip->wasSelected = 0;
 		pip->next_write = pip->next_read = rand_r(&pip->rand_state) % 1024;
@@ -1267,7 +1003,8 @@ chkio_drv_control(ErlDrvData drv_data,
 	    }/*fall through*/
 	    case Opened: {
 		if (op & 1) {
-		    TRACEF(("%T: Write %d to opened pipe [%d->%d]\n", cddp->id, pip->next_write, pip->write_fd, pip->read_fd));
+		    TRACEF(("%T: Write %d to opened pipe [%d->%d]\n", cddp->id,
+                            pip->next_write, pip->write_fd, pip->read_fd));
 		    if (write(pip->write_fd, &pip->next_write, sizeof(int)) != sizeof(int)) {
 			fprintf(stderr, "Failed to write to pipe fd=%d, errno=%d\n", pip->write_fd, errno);
 			abort();
@@ -1276,8 +1013,12 @@ chkio_drv_control(ErlDrvData drv_data,
 		}
 		op >>= 1;
 		if (pip->wasSelected && (op & 1)) {
-		    TRACEF(("%T: Close pipe [%d->%d]\n", cddp->id, pip->write_fd, pip->read_fd));
-		    if (close(pip->read_fd) || close(pip->write_fd)) {
+		    TRACEF(("%T: Close pipe [%d->%d]\n", cddp->id, pip->write_fd,
+                            pip->read_fd));
+                    drv_use_singleton.fd_stop_select = -2; /* disable stop_select asserts */
+		    if (driver_select(cddp->port, (ErlDrvEvent)(ErlDrvSInt)pip->read_fd,
+                                      DO_READ|ERL_DRV_USE, 0)
+                        || close(pip->write_fd)) {
 			fprintf(stderr, "Failed to close pipe, errno=%d\n", errno);
 			abort();
 		    }
@@ -1285,8 +1026,10 @@ chkio_drv_control(ErlDrvData drv_data,
 		    break;
 		}
 		else {
-		    TRACEF(("%T: Select on pipe [%d->%d]\n", cddp->id, pip->write_fd, pip->read_fd));
-		    if (driver_select(cddp->port, (ErlDrvEvent)(ErlDrvSInt)pip->read_fd, DO_READ, 1)) {
+		    TRACEF(("%T: Select on pipe [%d->%d]\n", cddp->id,
+                            pip->write_fd, pip->read_fd));
+		    if (driver_select(cddp->port, (ErlDrvEvent)(ErlDrvSInt)pip->read_fd,
+                                      DO_READ|ERL_DRV_USE, 1)) {
 			fprintf(stderr, "driver_select failed for fd=%d\n", pip->read_fd);
 			abort();
 		    }
@@ -1294,13 +1037,13 @@ chkio_drv_control(ErlDrvData drv_data,
 		    pip->wasSelected = 1;
 		    op >>= 1;
 		    if (pip->next_write != pip->next_read) { /* pipe not empty */
-			if (op & 1) {  
+			if (op & 1) {
 			    pip->state = Waiting; /* Wait for reader */
 			    break;
 			}
 			op >>= 1;
 		    }
-		}  
+		}
 	    }/*fall through*/
 	    case Selected:
 		if (op & 1) {
@@ -1329,7 +1072,7 @@ chkio_drv_control(ErlDrvData drv_data,
 			fprintf(stderr, "Failed to write to pipe fd=%d, errno=%d\n", pip->write_fd, errno);
 			abort();
 		    }
-		    pip->next_write++;		    
+		    pip->next_write++;
 		}
 		break;
 	    case Waiting:
@@ -1583,7 +1326,12 @@ static void chkio_drv_stop_select(ErlDrvEvent e, void* null)
     if (!(drv_use_singleton.fd_stop_select < 0)) {
 	assert_print("fd_stop_select<0", __LINE__); abort(); 
     }
-    drv_use_singleton.fd_stop_select = (int)(long)e;
+    /* fd_stop_select counting is disabled if this is set to -2 */
+    if (drv_use_singleton.fd_stop_select == -2) {
+        TRACEF(("closing %d\n", (int)(long)e));
+        close((int)(long)e);
+    } else
+        drv_use_singleton.fd_stop_select = (int)(long)e;
     /* Can't call chkio_drv_use directly here. That could even be recursive.
      * Next timeout will detect it instead.
      */
diff --git a/erts/emulator/test/driver_SUITE_data/ioq_exit_drv.c b/erts/emulator/test/driver_SUITE_data/ioq_exit_drv.c
index d87c2bec93..fa58e9d5ec 100644
--- a/erts/emulator/test/driver_SUITE_data/ioq_exit_drv.c
+++ b/erts/emulator/test/driver_SUITE_data/ioq_exit_drv.c
@@ -25,8 +25,7 @@
  *		- ready_input(),
  *		- ready_output(),
  *		- timeout(),
- *		- driver_async() -> read_async(), and
- *		- event()
+ *		- driver_async() -> read_async()
  */
 
 #ifndef UNIX
@@ -65,11 +64,9 @@ typedef enum {
     IOQ_EXIT_READY_OUTPUT = 2,
     IOQ_EXIT_TIMEOUT = 3,
     IOQ_EXIT_READY_ASYNC = 4,
-    IOQ_EXIT_EVENT = 5,
     IOQ_EXIT_READY_INPUT_ASYNC = 6,
     IOQ_EXIT_READY_OUTPUT_ASYNC = 7,
     IOQ_EXIT_TIMEOUT_ASYNC = 8,
-    IOQ_EXIT_EVENT_ASYNC = 9
 } IOQExitTest;
 
 typedef struct {
@@ -80,9 +77,6 @@ typedef struct {
     int outstanding_async_task;
     long async_task;
     ErlDrvPDL pdl;
-#ifdef HAVE_POLL_H
-    struct erl_drv_event_data event_data;
-#endif
 } IOQExitDrvData;
 
 #define EV2FD(EV) ((int) ((long) (EV)))
@@ -97,8 +91,6 @@ static ErlDrvSSizeT control(ErlDrvData, unsigned int,
 static void timeout(ErlDrvData drv_data);
 static void ready_async(ErlDrvData drv_data, ErlDrvThreadData thread_data);
 static void flush(ErlDrvData drv_data);
-static void event(ErlDrvData drv_data, ErlDrvEvent event,
-		  ErlDrvEventData event_data);
 static void async_invoke(void*);
 static void do_driver_async(IOQExitDrvData *);
 
@@ -118,7 +110,7 @@ static ErlDrvEntry ioq_exit_drv_entry = {
     ready_async,
     flush,
     NULL /* call */,
-    event,
+    NULL /* unused_event_callback*/,
     ERL_DRV_EXTENDED_MARKER,
     ERL_DRV_EXTENDED_MAJOR_VERSION,
     ERL_DRV_EXTENDED_MINOR_VERSION,
@@ -149,10 +141,6 @@ start(ErlDrvPort port, char *command)
     ddp->outstanding_async_task = 0;
     ddp->async_task = -1;
     ddp->pdl = driver_pdl_create(port);
-#ifdef HAVE_POLL_H
-    ddp->event_data.events = (short) 0;
-    ddp->event_data.revents = (short) 0;
-#endif
 
     return (ErlDrvData) ddp;
 }
@@ -192,27 +180,6 @@ static ErlDrvSSizeT control(ErlDrvData drv_data,
 #else
 	goto done;
 #endif
-    case IOQ_EXIT_EVENT:
-    case IOQ_EXIT_EVENT_ASYNC:
-#ifdef UNIX
-#ifdef HAVE_POLL_H
-	ddp->ofd = open("/dev/null", O_WRONLY);
-	if (ddp->ofd < 0) {
-	    driver_failure_posix(ddp->port, errno);
-	    return 0;
-	}
-	else if (driver_event(ddp->port, FD2EV(ddp->ofd), NULL) != 0) {
-	    res_str = "skip: driver_event() not supported";
-	    goto done;
-	}
-#else
-	res_str = "skip: No poll.h found which is needed for this test";
-	goto done;
-#endif
-	break;
-#else /* UNIX */
-	goto done;
-#endif
     case IOQ_EXIT_TIMEOUT:
     case IOQ_EXIT_TIMEOUT_ASYNC:
 	break;
@@ -266,13 +233,6 @@ static void stop(ErlDrvData drv_data)
 		close(ddp->ofd);
 	    }
 	    break;
-	case IOQ_EXIT_EVENT:
-	case IOQ_EXIT_EVENT_ASYNC:
-	    if (ddp->ofd >= 0) {
-		driver_event(ddp->port, FD2EV(ddp->ofd), NULL);
-		close(ddp->ofd);
-	    }
-	    break;
 #endif
 	case IOQ_EXIT_TIMEOUT:
 	case IOQ_EXIT_TIMEOUT_ASYNC:
@@ -302,13 +262,6 @@ static void flush(ErlDrvData drv_data)
     case IOQ_EXIT_READY_OUTPUT_ASYNC:
 	driver_select(ddp->port, FD2EV(ddp->ofd), DO_WRITE, 1);
 	break;
-    case IOQ_EXIT_EVENT:
-    case IOQ_EXIT_EVENT_ASYNC:
-#ifdef HAVE_POLL_H
-	ddp->event_data.events |= POLLOUT;
-	driver_event(ddp->port, FD2EV(ddp->ofd), &ddp->event_data);
-#endif
-	break;
 #endif
     case IOQ_EXIT_TIMEOUT:
     case IOQ_EXIT_TIMEOUT_ASYNC:
@@ -395,30 +348,6 @@ static void ready_async(ErlDrvData drv_data, ErlDrvThreadData thread_data)
     }
 }
 
-static void event(ErlDrvData drv_data,
-		  ErlDrvEvent event,
-		  ErlDrvEventData event_data)
-{
-    IOQExitDrvData *ddp = (IOQExitDrvData *) drv_data;
-
-    PRINTF(("event(%p, %d, %p) called\r\n", drv_data, EV2FD(event), event_data));
-
-#if defined(UNIX) && defined(HAVE_POLL_H)
-    if (ddp->ofd == EV2FD(event)) {
-	driver_event(ddp->port, FD2EV(ddp->ofd), NULL);
-	close(ddp->ofd);
-	ddp->ofd = -1;
-	if (ddp->test == IOQ_EXIT_EVENT_ASYNC)
-	    do_driver_async(ddp);
-	else {
-	    driver_pdl_lock(ddp->pdl);
-	    driver_deq(ddp->port, 1);
-	    driver_pdl_unlock(ddp->pdl);
-	}
-    }
-#endif
-}
-
 static void async_invoke(void *arg)
 {
     PRINTF(("async_invoke(%p) called\r\n", arg));
diff --git a/erts/emulator/test/driver_SUITE_data/missing_callback_drv.c b/erts/emulator/test/driver_SUITE_data/missing_callback_drv.c
index e7480d2e00..14838f0377 100644
--- a/erts/emulator/test/driver_SUITE_data/missing_callback_drv.c
+++ b/erts/emulator/test/driver_SUITE_data/missing_callback_drv.c
@@ -41,10 +41,6 @@
 typedef struct {
     int ofd;
     int ifd;
-    int efd;
-#ifdef HAVE_POLL_H
-    struct erl_drv_event_data edata;
-#endif
 } mcd_data_t;
 
 static ErlDrvData start(ErlDrvPort port, char *command);
@@ -90,7 +86,6 @@ start(ErlDrvPort port, char *command)
 
     mcd->ofd = -1;
     mcd->ifd = -1;
-    mcd->efd = -1;
 
 #ifdef UNIX
 
@@ -105,15 +100,6 @@ start(ErlDrvPort port, char *command)
 	goto error;
     if (driver_select(port, (ErlDrvEvent) (long) mcd->ifd, DO_READ, 1) != 0)
 	goto error;
-
-#ifdef HAVE_POLL_H
-    mcd->efd = open("/dev/null", O_WRONLY);
-    if (mcd->efd < 0)
-	goto error;
-    mcd->edata.events = POLLOUT;
-    mcd->edata.revents = 0;
-    driver_event(port, (ErlDrvEvent) (long) mcd->efd, &mcd->edata);
-#endif
 #endif
 
     driver_set_timer(port, 0);
@@ -135,10 +121,6 @@ stop(ErlDrvData data)
 	    close(mcd->ofd);
 	if (mcd->ifd >= 0)
 	    close(mcd->ifd);
-#ifdef HAVE_POLL_H
-	if (mcd->efd >= 0)
-	    close(mcd->efd);
-#endif
 #endif
 	driver_free(mcd);
     }
diff --git a/erts/emulator/test/dump_SUITE.erl b/erts/emulator/test/dump_SUITE.erl
new file mode 100644
index 0000000000..38fa198ea6
--- /dev/null
+++ b/erts/emulator/test/dump_SUITE.erl
@@ -0,0 +1,125 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2005-2017. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(dump_SUITE).
+
+-include_lib("common_test/include/ct.hrl").
+
+-export([all/0, suite/0, init_per_testcase/2, end_per_testcase/2]).
+
+-export([signal_abort/1]).
+
+-export([load/0]).
+
+-include_lib("kernel/include/file.hrl").
+
+suite() ->
+    [{ct_hooks,[ts_install_cth]},
+     {timetrap, {minutes, 2}}].
+
+all() ->
+    [signal_abort].
+
+init_per_testcase(signal_abort, Config) ->
+    SO = erlang:system_info(schedulers_online),
+    erts_debug:set_internal_state(available_internal_state, true),
+    Dump = erts_debug:get_internal_state(scheduler_dump),
+    erts_debug:set_internal_state(available_internal_state, false),
+    if SO < 3 ->
+            {skip, "not enough schedulers"};
+       not Dump ->
+            {skip, "the platform does not support scheduler dump"};
+       Dump ->
+            Config
+    end.
+
+end_per_testcase(_, Config) ->
+    Config.
+
+%%%
+%%% The test cases -------------------------------------------------------------
+%%%
+
+%% Test that a snapshot is taken of other schedulers using a signal
+%% when a crash dump is generated.
+signal_abort(Config) ->
+
+    Dump = filename:join(proplists:get_value(priv_dir, Config),"signal_abort.dump"),
+
+    {ok, Node} = start_node(Config),
+
+    _P1 = spawn(Node, ?MODULE, load, []),
+    _P2 = spawn(Node, ?MODULE, load, []),
+    _P3 = spawn(Node, ?MODULE, load, []),
+    _P4 = spawn(Node, ?MODULE, load, []),
+    _P5 = spawn(Node, ?MODULE, load, []),
+    _P6 = spawn(Node, ?MODULE, load, []),
+
+    timer:sleep(500),
+
+    true = rpc:call(Node, os, putenv, ["ERL_CRASH_DUMP",Dump]),
+    rpc:call(Node, erlang, halt, ["dump"]),
+
+    {ok, Bin} = get_dump_when_done(Dump),
+
+    ct:log("~s",[Bin]),
+
+    {match, Matches} = re:run(Bin,"Current Process: <",[global]),
+
+    ct:log("Found ~p",[Matches]),
+
+    true = length(Matches) > 1,
+
+    file:delete(Dump),
+
+    ok.
+
+get_dump_when_done(Dump) ->
+    case file:read_file_info(Dump) of
+        {ok, #file_info{ size = Sz }} ->
+            get_dump_when_done(Dump, Sz);
+        {error, enoent} ->
+            timer:sleep(100),
+            get_dump_when_done(Dump)
+    end.
+
+get_dump_when_done(Dump, Sz) ->
+    timer:sleep(100),
+    case file:read_file_info(Dump) of
+        {ok, #file_info{ size = Sz }} ->
+            file:read_file(Dump);
+        {ok, #file_info{ size = NewSz }} ->
+            get_dump_when_done(Dump, NewSz)
+    end.
+
+load() ->
+    lists:seq(1,10000),
+    load().
+
+start_node(Config) when is_list(Config) ->
+    Pa = filename:dirname(code:which(?MODULE)),
+    Name = list_to_atom(atom_to_list(?MODULE)
+                        ++ "-"
+                        ++ atom_to_list(proplists:get_value(testcase, Config))
+                        ++ "-"
+                        ++ integer_to_list(erlang:system_time(second))
+                        ++ "-"
+                        ++ integer_to_list(erlang:unique_integer([positive]))),
+    test_server:start_node(Name, slave, [{args, "-pa "++Pa}]).
diff --git a/erts/emulator/test/efile_SUITE.erl b/erts/emulator/test/efile_SUITE.erl
index f0e1bcf04b..08d5597d78 100644
--- a/erts/emulator/test/efile_SUITE.erl
+++ b/erts/emulator/test/efile_SUITE.erl
@@ -19,16 +19,20 @@
 
 -module(efile_SUITE).
 -export([all/0, suite/0]).
--export([iter_max_files/1, async_dist/1]).
+-export([async_dist/1,
+         iter_max_files/1,
+         proc_zero_sized_files/1
+        ]).
 
 -export([do_iter_max_files/2, do_async_dist/1]).
 
 -include_lib("common_test/include/ct.hrl").
+-include_lib("stdlib/include/assert.hrl").
 
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
-    [iter_max_files, async_dist].
+    [iter_max_files, async_dist, proc_zero_sized_files].
 
 do_async_dist(Dir) ->
     X = 100,
@@ -162,3 +166,44 @@ open_files(Name) ->
             %		  io:format("Error reason: ~p", [_Reason]),
             []
     end.
+
+%% @doc If /proc filesystem exists (no way to know if it is real proc or just
+%% a /proc directory), let's read some zero sized files 500 times each, while
+%% ensuring that response isn't empty << >>
+proc_zero_sized_files(Config) when is_list(Config) ->
+    {Type, Flavor} = os:type(),
+    %% Some files which exist on Linux but might be missing on other systems
+    Inputs = ["/proc/cpuinfo",
+              "/proc/meminfo",
+              "/proc/partitions",
+              "/proc/swaps",
+              "/proc/version",
+              "/proc/uptime",
+              %% curproc is present on freebsd
+              "/proc/curproc/cmdline"],
+    case filelib:is_dir("/proc") of
+        false -> {skip, "/proc not found"}; % skip the test if no /proc
+        _ when Type =:= unix andalso Flavor =:= sunos ->
+            %% SunOS has a /proc, but no zero sized special files
+            {skip, "sunos does not have any zero sized special files"};
+        true ->
+            %% Take away files which do not exist in proc
+            Inputs1 = lists:filter(fun filelib:is_file/1, Inputs),
+
+            %% Fail if none of mentioned files exist in /proc, did we just get
+            %% a normal /proc directory without any special files?
+            ?assertNotEqual([], Inputs1),
+
+            %% For 6 inputs and 500 attempts each this do run anywhere
+            %% between 500 and 3000 function calls.
+            lists:foreach(
+                fun(Filename) -> do_proc_zero_sized(Filename, 500) end,
+                Inputs1)
+    end.
+
+%% @doc Test one file N times to also trigger possible leaking fds and memory
+do_proc_zero_sized(_Filename, 0) -> ok;
+do_proc_zero_sized(Filename, N) ->
+    Data = file:read_file(Filename),
+    ?assertNotEqual(<<>>, Data),
+    do_proc_zero_sized(Filename, N-1).
diff --git a/erts/emulator/test/emulator_smoke.spec b/erts/emulator/test/emulator_smoke.spec
index b2d0de8835..fc98ba6823 100644
--- a/erts/emulator/test/emulator_smoke.spec
+++ b/erts/emulator/test/emulator_smoke.spec
@@ -7,3 +7,4 @@
     [consistency],"Not reliable in October and March"}.
 {cases,'Dir',crypto_SUITE,[t_md5]}.
 {cases,'Dir',float_SUITE,[fpe,cmp_integer]}.
+{cases,'Dir',erts_debug_SUITE,[df]}.
diff --git a/erts/emulator/test/erl_link_SUITE.erl b/erts/emulator/test/erl_link_SUITE.erl
index 5622cce980..d8c5b663e3 100644
--- a/erts/emulator/test/erl_link_SUITE.erl
+++ b/erts/emulator/test/erl_link_SUITE.erl
@@ -533,7 +533,7 @@ freeze_node(Node, MS) ->
                fun () ->
                        erts_debug:set_internal_state(available_internal_state,
                                                      true),
-                       dport_send(Freezer, DoingIt),
+                       dctrl_dop_send(Freezer, DoingIt),
                        receive after Own -> ok end,
                        erts_debug:set_internal_state(block, MS+Own)
                end),
@@ -544,20 +544,22 @@ make_busy(Node, Time) when is_integer(Time) ->
     Own = 500,
     freeze_node(Node, Time+Own), 
     Data = busy_data(),
+    DCtrl = dctrl(Node),
     %% first make port busy
     Pid = spawn_link(fun () ->
                              forever(fun () ->
-                                             dport_reg_send(Node,
-                                                            '__noone__',
-                                                            Data)
+                                             dctrl_dop_reg_send(Node,
+                                                                '__noone__',
+                                                                Data)
                                      end)
                      end),
     receive after Own -> ok end,
     wait_until(fun () ->
-                       case process_info(Pid, status) of
-                           {status, suspended} -> true;
-                           _ -> false
-                       end
+                  case {DCtrl, process_info(Pid, status)} of
+                      {DPrt, {status, suspended}} when is_port(DPrt) -> true;
+                      {DPid, {status, waiting}} when is_pid(DPid) -> true;
+                      _ -> false
+                  end
                end),
     %% then dist entry
     make_busy(Node, [nosuspend], Data),
@@ -1048,42 +1050,45 @@ stop_node(Node) ->
 -define(DOP_DEMONITOR_P,	20).
 -define(DOP_MONITOR_P_EXIT,	21).
 
-dport_send(To, Msg) ->
-    Node = node(To),
-    DPrt = case dport(Node) of
-               undefined ->
-                   pong = net_adm:ping(Node),
-                   dport(Node);
-               Prt ->
-                   Prt
-           end,
-    port_command(DPrt, [dmsg_hdr(),
-                        dmsg_ext({?DOP_SEND,
-                                  ?COOKIE,
-                                  To}),
-                        dmsg_ext(Msg)]).
-
-dport_reg_send(Node, Name, Msg) ->
-    DPrt = case dport(Node) of
-               undefined ->
-                   pong = net_adm:ping(Node),
-                   dport(Node);
-               Prt ->
-                   Prt
-           end,
-    port_command(DPrt, [dmsg_hdr(),
-                        dmsg_ext({?DOP_REG_SEND,
-                                  self(),
-                                  ?COOKIE,
-                                  Name}),
-                        dmsg_ext(Msg)]).
-
-dport(Node) when is_atom(Node) ->
+ensure_dctrl(Node) ->
+    case dctrl(Node) of
+        undefined ->
+            pong = net_adm:ping(Node),
+            dctrl(Node);
+        DCtrl ->
+            DCtrl
+    end.
+
+dctrl_send(DPrt, Data) when is_port(DPrt) ->
+    port_command(DPrt, Data);
+dctrl_send(DPid, Data) when is_pid(DPid) ->
+    Ref = make_ref(),
+    DPid ! {send, self(), Ref, Data},
+    receive {Ref, Res} -> Res end.
+
+dctrl_dop_send(To, Msg) ->
+    dctrl_send(ensure_dctrl(node(To)),
+               [dmsg_hdr(),
+                dmsg_ext({?DOP_SEND,
+                          ?COOKIE,
+                          To}),
+                dmsg_ext(Msg)]).
+
+dctrl_dop_reg_send(Node, Name, Msg) ->
+    dctrl_send(ensure_dctrl(Node),
+               [dmsg_hdr(),
+                dmsg_ext({?DOP_REG_SEND,
+                          self(),
+                          ?COOKIE,
+                          Name}),
+                dmsg_ext(Msg)]).
+
+dctrl(Node) when is_atom(Node) ->
     case catch erts_debug:get_internal_state(available_internal_state) of
         true -> true;
         _ -> erts_debug:set_internal_state(available_internal_state, true)
     end,
-    erts_debug:get_internal_state({dist_port, Node}).
+    erts_debug:get_internal_state({dist_ctrl, Node}).
 
 dmsg_hdr() ->
     [131, % Version Magic
diff --git a/erts/emulator/test/estone_SUITE.erl b/erts/emulator/test/estone_SUITE.erl
index c4899967ca..c9c1867049 100644
--- a/erts/emulator/test/estone_SUITE.erl
+++ b/erts/emulator/test/estone_SUITE.erl
@@ -379,7 +379,7 @@ monotonic_time() ->
     try erlang:monotonic_time() catch error:undef -> erlang:now() end.
 
 subtr(Before, After) when is_integer(Before), is_integer(After) ->
-    erlang:convert_time_unit(After-Before, native, microsecond);
+    erlang:convert_time_unit(After-Before, native, 1000000);
 subtr({_,_,_}=Before, {_,_,_}=After) ->
     timer:now_diff(After, Before).
 
diff --git a/erts/emulator/test/exception_SUITE.erl b/erts/emulator/test/exception_SUITE.erl
index e473a10be7..be9b63d534 100644
--- a/erts/emulator/test/exception_SUITE.erl
+++ b/erts/emulator/test/exception_SUITE.erl
@@ -31,6 +31,10 @@
 -include_lib("common_test/include/ct.hrl").
 -import(lists, [foreach/2]).
 
+%% The range analysis of the HiPE compiler results in a system limit error
+%% during compilation instead of at runtime, so do not perform this analysis.
+-compile([{hipe, [no_icode_range]}]).
+
 suite() ->
     [{ct_hooks,[ts_install_cth]},
      {timetrap, {minutes, 1}}].
@@ -662,6 +666,15 @@ line_numbers(Config) when is_list(Config) ->
               {?MODULE,line_numbers,1,_}|_]}} =
     (catch applied_bif_2()),
 
+    {'EXIT',{badarith,
+             [{?MODULE,increment1,1,[{file,"increment.erl"},{line,45}]},
+              {?MODULE,line_numbers,1,_}|_]}} =
+        (catch increment1(x)),
+    {'EXIT',{badarith,
+             [{?MODULE,increment2,1,[{file,"increment.erl"},{line,48}]},
+              {?MODULE,line_numbers,1,_}|_]}} =
+        (catch increment2(x)),
+
     ok.
 
 id(I) -> I.
@@ -762,3 +775,15 @@ applied_bif_2() ->				%Line 8
     R = process_info(self(), current_location),	%Line 9
     fail = R,					%Line 10
     ok.						%Line 11
+
+%% The increment instruction used to decrement the instruction
+%% pointer, which would cause the line number in a stack trace to
+%% be the previous line number.
+
+-file("increment.erl", 42).
+increment1(Arg) ->                              %Line 43
+    Res = id(Arg),                              %Line 44
+    Res + 1.                                    %Line 45
+increment2(Arg) ->                              %Line 46
+    _ = id(Arg),                                %Line 47
+    Arg + 1.                                    %Line 48
diff --git a/erts/emulator/test/iovec_SUITE.erl b/erts/emulator/test/iovec_SUITE.erl
new file mode 100644
index 0000000000..49dc64b0d2
--- /dev/null
+++ b/erts/emulator/test/iovec_SUITE.erl
@@ -0,0 +1,176 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2017. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%% 
+%% %CopyrightEnd%
+%%
+
+-module(iovec_SUITE).
+
+-export([all/0, suite/0, init_per_suite/1, end_per_suite/1]).
+
+-export([integer_lists/1, binary_lists/1, empty_lists/1, empty_binary_lists/1,
+         mixed_lists/1, improper_lists/1, illegal_lists/1, cons_bomb/1,
+         sub_binary_lists/1, iolist_to_iovec_idempotence/1,
+         iolist_to_iovec_correctness/1]).
+
+-include_lib("common_test/include/ct.hrl").
+
+suite() ->
+    [{ct_hooks,[ts_install_cth]},
+     {timetrap, {minutes, 2}}].
+
+all() ->
+    [integer_lists, binary_lists, empty_lists, empty_binary_lists, mixed_lists,
+     sub_binary_lists, illegal_lists, improper_lists, cons_bomb,
+     iolist_to_iovec_idempotence, iolist_to_iovec_correctness].
+
+init_per_suite(Config) ->
+    Config.
+
+end_per_suite(Config) ->
+    application:stop(os_mon),
+    Config.
+
+integer_lists(Config) when is_list(Config) ->
+    Variations = gen_variations([I || I <- lists:seq(1, 255)]),
+    equivalence_test(fun erlang:iolist_to_iovec/1, Variations).
+
+sub_binary_lists(Config) when is_list(Config) ->
+    Parent = <<0:256/unit:8, "gazurka">>,
+    <<0:196/unit:8, Child/binary>> = Parent,
+    equivalence_test(fun erlang:iolist_to_iovec/1, gen_variations(Child)).
+
+binary_lists(Config) when is_list(Config) ->
+    Variations = gen_variations([<<I:8>> || I <- lists:seq(1, 255)]),
+    equivalence_test(fun erlang:iolist_to_iovec/1, Variations).
+
+empty_lists(Config) when is_list(Config) ->
+    Variations = gen_variations([[] || _ <- lists:seq(1, 256)]),
+    equivalence_test(fun erlang:iolist_to_iovec/1, Variations),
+    [] = erlang:iolist_to_iovec([]),
+    ok.
+
+empty_binary_lists(Config) when is_list(Config) ->
+    Variations = gen_variations([<<>> || _ <- lists:seq(1, 8192)]),
+    equivalence_test(fun erlang:iolist_to_iovec/1, Variations),
+    [] = erlang:iolist_to_iovec(Variations),
+    ok.
+
+mixed_lists(Config) when is_list(Config) ->
+    Variations = gen_variations([<<>>, lists:seq(1, 40), <<12, 45, 78>>]),
+    equivalence_test(fun erlang:iolist_to_iovec/1, Variations).
+
+illegal_lists(Config) when is_list(Config) ->
+    BitStrs = gen_variations(["gurka", <<1:1>>, "gaffel"]),
+    BadInts = gen_variations(["gurka", 890, "gaffel"]),
+    Atoms = gen_variations([gurka, "gaffel"]),
+    BadTails = [["test" | 0], ["gurka", gaffel]],
+
+    Variations =
+        BitStrs ++ BadInts ++ Atoms ++ BadTails,
+
+    illegality_test(fun erlang:iolist_to_iovec/1, Variations).
+
+improper_lists(Config) when is_list(Config) ->
+    Variations = [
+        [[[[1 | <<2>>] | <<3>>] | <<4>>] | <<5>>],
+        [[<<1>>, 2] | <<3, 4, 5>>],
+        [1, 2, 3 | <<4, 5>>]
+    ],
+    equivalence_test(fun erlang:iolist_to_iovec/1, Variations).
+
+cons_bomb(Config) when is_list(Config) ->
+    IntBase = gen_variations([I || I <- lists:seq(1, 255)]),
+    BinBase = gen_variations([<<I:8>> || I <- lists:seq(1, 255)]),
+    MixBase = gen_variations([<<12, 45, 78>>, lists:seq(1, 255)]),
+
+    Rounds =
+        case system_mem_size() of
+            Mem when Mem >= (16 bsl 30) -> 32;
+            Mem when Mem >= (3 bsl 30) -> 28;
+            _ -> 20
+        end,
+
+    Variations = gen_variations([IntBase, BinBase, MixBase], Rounds),
+    equivalence_test(fun erlang:iolist_to_iovec/1, Variations).
+
+iolist_to_iovec_idempotence(Config) when is_list(Config) ->
+    IntVariations = gen_variations([I || I <- lists:seq(1, 255)]),
+    BinVariations = gen_variations([<<I:8>> || I <- lists:seq(1, 255)]),
+    MixVariations = gen_variations([<<12, 45, 78>>, lists:seq(1, 255)]),
+
+    Variations = [IntVariations, BinVariations, MixVariations],
+    Optimized = erlang:iolist_to_iovec(Variations),
+
+    true = Optimized =:= erlang:iolist_to_iovec(Optimized),
+    ok.
+
+iolist_to_iovec_correctness(Config) when is_list(Config) ->
+    IntVariations = gen_variations([I || I <- lists:seq(1, 255)]),
+    BinVariations = gen_variations([<<I:8>> || I <- lists:seq(1, 255)]),
+    MixVariations = gen_variations([<<12, 45, 78>>, lists:seq(1, 255)]),
+
+    Variations = [IntVariations, BinVariations, MixVariations],
+    Optimized = erlang:iolist_to_iovec(Variations),
+
+    true = is_iolist_equal(Optimized, Variations),
+    ok.
+
+illegality_test(Fun, Variations) ->
+    [{'EXIT',{badarg, _}} = (catch Fun(Variation)) || Variation <- Variations],
+    ok.
+
+equivalence_test(Fun, [Head | _] = Variations) ->
+    %% Check that each variation is equal to the others, and that the sum of
+    %% them is equal to the input.
+    Comparand = Fun(Head),
+    [true = is_iolist_equal(Comparand, Fun(V)) || V <- Variations],
+    true = is_iolist_equal(Variations, Fun(Variations)),
+    ok.
+
+is_iolist_equal(A, B) ->
+    iolist_to_binary(A) =:= iolist_to_binary(B).
+
+%% Generates a bunch of lists whose contents will be equal to Base repeated a
+%% few times. The lists only differ by their structure, so their reduction to
+%% a simpler format should yield the same result.
+gen_variations(Base) ->
+    gen_variations(Base, 16).
+gen_variations(Base, N) ->
+    [gen_flat_list(Base, N),
+     gen_nested_list(Base, N),
+     gen_nasty_list(Base, N)].
+
+gen_flat_list(Base, N) ->
+    lists:flatten(gen_nested_list(Base, N)).
+
+gen_nested_list(Base, N) ->
+    [Base || _ <- lists:seq(1, N)].
+
+gen_nasty_list(Base, N) ->
+    gen_nasty_list_1(gen_nested_list(Base, N), []).
+gen_nasty_list_1([], Result) ->
+    Result;
+gen_nasty_list_1([Head | Base], Result) when is_list(Head) ->
+    gen_nasty_list_1(Base, [[Result], [gen_nasty_list_1(Head, [])]]);
+gen_nasty_list_1([Head | Base], Result) ->
+    gen_nasty_list_1(Base, [[Result], [Head]]).
+
+system_mem_size() ->
+    application:ensure_all_started(os_mon),
+    {Tot,_Used,_}  = memsup:get_memory_data(),
+    Tot.
diff --git a/erts/emulator/test/lttng_SUITE.erl b/erts/emulator/test/lttng_SUITE.erl
index a012fa1da2..19c3844c40 100644
--- a/erts/emulator/test/lttng_SUITE.erl
+++ b/erts/emulator/test/lttng_SUITE.erl
@@ -81,7 +81,6 @@ end_per_testcase(Case, _Config) ->
 
 %% Not tested yet
 %%   org_erlang_otp:driver_process_exit
-%%   org_erlang_otp:driver_event
 
 %% tracepoints
 %%
@@ -100,7 +99,6 @@ end_per_testcase(Case, _Config) ->
 %%   org_erlang_otp:driver_flush
 %%   org_erlang_otp:driver_stop_select
 %%   org_erlang_otp:driver_timeout
-%%   org_erlang_otp:driver_event
 %%   org_erlang_otp:driver_ready_output
 %%   org_erlang_otp:driver_ready_input
 %%   org_erlang_otp:driver_output
@@ -431,7 +429,6 @@ txt() ->
       "%%   org_erlang_otp:driver_flush\n"
       "%%   org_erlang_otp:driver_stop_select\n"
       "%%   org_erlang_otp:driver_timeout\n"
-      "%%   org_erlang_otp:driver_event\n"
       "%%   org_erlang_otp:driver_ready_output\n"
       "%%   org_erlang_otp:driver_ready_input\n"
       "%%   org_erlang_otp:driver_output\n"
diff --git a/erts/emulator/test/match_spec_SUITE.erl b/erts/emulator/test/match_spec_SUITE.erl
index 92ddc23592..08a7b4560c 100644
--- a/erts/emulator/test/match_spec_SUITE.erl
+++ b/erts/emulator/test/match_spec_SUITE.erl
@@ -21,7 +21,7 @@
 -module(match_spec_SUITE).
 
 -export([all/0, suite/0, not_run/1]).
--export([test_1/1, test_2/1, test_3/1, bad_match_spec_bin/1,
+-export([test_1/1, test_2/1, test_3/1, caller_and_return_to/1, bad_match_spec_bin/1,
 	 trace_control_word/1, silent/1, silent_no_ms/1, silent_test/1,
 	 ms_trace2/1, ms_trace3/1, ms_trace_dead/1, boxed_and_small/1,
 	 destructive_in_test_bif/1, guard_exceptions/1,
@@ -47,7 +47,7 @@ suite() ->
 all() -> 
     case test_server:is_native(match_spec_SUITE) of
 	false ->
-	    [test_1, test_2, test_3, bad_match_spec_bin,
+	    [test_1, test_2, test_3, caller_and_return_to, bad_match_spec_bin,
 	     trace_control_word, silent, silent_no_ms, silent_test, ms_trace2,
 	     ms_trace3, ms_trace_dead, boxed_and_small, destructive_in_test_bif,
 	     guard_exceptions, unary_plus, unary_minus, fpe,
@@ -180,6 +180,50 @@ test_3(Config) when is_list(Config) ->
     collect(P1, [{trace, P1, call, {?MODULE, f2, [a, b]}, [true]}]),
     ok.
 
+%% Test that caller and return to work as they should
+%% There was a bug where caller would be undefined when return_to was set
+%% for r the bif erlang:put().
+caller_and_return_to(Config) ->
+    tr(
+      fun do_put_wrapper/0,
+      fun (Tracee) ->
+              MsgCaller = [{'_',[],[{message,{caller}}]}],
+              1 = erlang:trace(Tracee, true, [call,return_to]),
+              1 = erlang:trace_pattern( {?MODULE,do_put,1}, MsgCaller, [local]),
+              1 = erlang:trace_pattern( {?MODULE,do_the_put,1}, MsgCaller, [local]),
+              1 = erlang:trace_pattern( {erlang,integer_to_list,1}, MsgCaller, [local]),
+              1 = erlang:trace_pattern( {erlang,put,2}, MsgCaller, [local]),
+
+              [{trace,Tracee,call,{?MODULE,do_put,[test]},{?MODULE,do_put_wrapper,0}},
+               {trace,Tracee,call,{?MODULE,do_the_put,[test]},{?MODULE,do_put,1}},
+               {trace,Tracee,call,{erlang,integer_to_list,[1]},{?MODULE,do_the_put,1}},
+               {trace,Tracee,return_to,{?MODULE,do_the_put,1}},
+               {trace,Tracee,call,{erlang,put,[test,"1"]},{?MODULE,do_put,1}},
+               {trace,Tracee,return_to,{?MODULE,do_put,1}},
+
+               %% These last trace messages are a bit strange...
+               %% if call tracing had been enabled for do_put_wrapper
+               %% then caller and return_to would have been {?MODULE,do_put_wrapper,1}
+               %% but since it is not, they are set to do_put instead, but we still
+               %% get the do_put_wrapper return_to message...
+               {trace,Tracee,call,{erlang,integer_to_list,[2]},{?MODULE,do_put,1}},
+               {trace,Tracee,return_to,{?MODULE,do_put,1}},
+               {trace,Tracee,return_to,{?MODULE,do_put_wrapper,0}}
+              ]
+      end),
+    ok.
+
+do_put_wrapper() ->
+    do_put(test),
+    ok.
+
+do_put(Var) ->
+    do_the_put(Var),
+    erlang:integer_to_list(id(2)).
+do_the_put(Var) ->
+    Lst = erlang:integer_to_list(id(1)),
+    erlang:put(Var, Lst).
+
 otp_9422(Config) when is_list(Config) ->
     Laps = 10000,
     Fun1 = fun() -> otp_9422_tracee() end,
diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl
index ef66f0bbfc..bec2291867 100644
--- a/erts/emulator/test/nif_SUITE.erl
+++ b/erts/emulator/test/nif_SUITE.erl
@@ -25,13 +25,14 @@
 %%-define(CHECK(Exp,Got), Exp = Got).
 
 -include_lib("common_test/include/ct.hrl").
+-include_lib("stdlib/include/assert.hrl").
 
 -export([all/0, suite/0, groups/0,
          init_per_group/2, end_per_group/2,
 	 init_per_testcase/2, end_per_testcase/2,
          basic/1, reload_error/1, upgrade/1, heap_frag/1,
          t_on_load/1,
-         select/1,
+         select/1, select_steal/1,
          monitor_process_a/1,
          monitor_process_b/1,
          monitor_process_c/1,
@@ -42,9 +43,9 @@
 	 types/1, many_args/1, binaries/1, get_string/1, get_atom/1,
 	 maps/1,
 	 api_macros/1,
-	 from_array/1, iolist_as_binary/1, resource/1, resource_binary/1, 
+	 from_array/1, iolist_as_binary/1, resource/1, resource_binary/1,
 	 resource_takeover/1,
-	 threading/1, send/1, send2/1, send3/1, send_threaded/1, neg/1, 
+	 threading/1, send/1, send2/1, send3/1, send_threaded/1, neg/1,
 	 is_checks/1,
 	 get_length/1, make_atom/1, make_string/1, reverse_list_test/1,
 	 otp_9828/1,
@@ -61,7 +62,8 @@
          nif_internal_hash_salted/1,
          nif_phash2/1,
          nif_whereis/1, nif_whereis_parallel/1,
-         nif_whereis_threaded/1, nif_whereis_proxy/1
+         nif_whereis_threaded/1, nif_whereis_proxy/1,
+         nif_ioq/1
 	]).
 
 -export([many_args_100/100]).
@@ -78,7 +80,7 @@ all() ->
     [{group, G} || G <- api_groups()]
         ++
     [reload_error, heap_frag, types, many_args,
-     select,
+     select, select_steal,
      {group, monitor},
      monitor_frenzy,
      hipe,
@@ -99,7 +101,8 @@ all() ->
      nif_internal_hash,
      nif_internal_hash_salted,
      nif_phash2,
-     nif_whereis, nif_whereis_parallel, nif_whereis_threaded].
+     nif_whereis, nif_whereis_parallel, nif_whereis_threaded,
+     nif_ioq].
 
 groups() ->
     [{G, [], api_repeaters()} || G <- api_groups()]
@@ -142,7 +145,8 @@ init_per_testcase(nif_whereis_threaded, Config) ->
         true -> Config;
         false -> {skip, "No thread support"}
     end;
-init_per_testcase(select, Config) ->
+init_per_testcase(Select, Config) when Select =:= select;
+                                       Select =:= select_steal ->
     case os:type() of
         {win32,_} ->
             {skip, "Test not yet implemented for windows"};
@@ -150,6 +154,9 @@ init_per_testcase(select, Config) ->
             Config
     end;
 init_per_testcase(_Case, Config) ->
+    %% Clear any resource dtor data before test starts in case another tc
+    %% left it in a bad state
+    catch last_resource_dtor_call(),
     Config.
 
 end_per_testcase(t_on_load, _Config) ->
@@ -588,7 +595,71 @@ select_3(_Config) ->
     {_,_,2} = last_resource_dtor_call(),
     ok.
 
-check_stop_ret(?ERL_NIF_SELECT_STOP_CALLED) -> ok;    
+%% @doc The stealing child process for the select_steal test. Duplicates given
+%% W/RFds and runs select on them to steal
+select_steal_child_process(Parent, RFd) ->
+    %% Duplicate the resource with the same FD
+    {R2Fd, _R2Ptr} = dupe_resource_nif(RFd),
+    Ref2 = make_ref(),
+
+    %% Try to select from the child pid (steal from parent)
+    ?assertEqual(0, select_nif(R2Fd, ?ERL_NIF_SELECT_READ, R2Fd, null, Ref2)),
+    ?assertEqual([], flush(0)),
+    ?assertEqual(eagain, read_nif(R2Fd, 1)),
+
+    %% Check that now events arrive to this temporary process
+    Parent ! {self(), stage1}, % signal parent to send the <<"stolen1">>
+
+    %% Receive <<"stolen1">> via enif_select
+    ?assertEqual(0, select_nif(R2Fd, ?ERL_NIF_SELECT_READ, R2Fd, null, Ref2)),
+    ?assertMatch([{select, R2Fd, Ref2, ready_input}], flush()),
+    ?assertEqual(<<"stolen1">>, read_nif(R2Fd, 7)),
+
+    clear_select_nif(R2Fd),
+
+    % do not do this here - stop_selecting(R2Fd, R2Rsrc, Ref2),
+    Parent ! {self(), done}.
+
+%% @doc Similar to select/1 test, make a double ended pipe. Then try to steal
+%% the socket, see what happens.
+select_steal(Config) when is_list(Config) ->
+    ensure_lib_loaded(Config),
+
+    Ref = make_ref(),
+    {{RFd, RPtr}, {WFd, WPtr}} = pipe_nif(),
+
+    %% Bind the socket to current pid in enif_select
+    ?assertEqual(0, select_nif(RFd, ?ERL_NIF_SELECT_READ, RFd, null, Ref)),
+    ?assertEqual([], flush(0)),
+
+    %% Spawn a process and do some stealing
+    Parent = self(),
+    Pid = spawn_link(fun() -> select_steal_child_process(Parent, RFd) end),
+
+    %% Signal from the child to send the first message
+    {Pid, stage1} = receive_any(),
+    ?assertEqual(ok, write_nif(WFd, <<"stolen1">>)),
+
+    ?assertMatch([{Pid, done}], flush(1)),  % synchronize with the child
+
+    %% Try to select from the parent pid (steal back)
+    ?assertEqual(0, select_nif(RFd, ?ERL_NIF_SELECT_READ, RFd, Pid, Ref)),
+
+    %% Ensure that no data is hanging and close.
+    %% Rfd is stolen at this point.
+    check_stop_ret(select_nif(WFd, ?ERL_NIF_SELECT_STOP, WFd, null, Ref)),
+    ?assertMatch([{fd_resource_stop, WPtr, _}], flush()),
+    {1, {WPtr, 1}} = last_fd_stop_call(),
+
+    check_stop_ret(select_nif(RFd, ?ERL_NIF_SELECT_STOP, RFd, null, Ref)),
+    ?assertMatch([{fd_resource_stop, RPtr, _}], flush()),
+    {1, {RPtr, 1}} = last_fd_stop_call(),
+
+    ?assert(is_closed_nif(WFd)),
+
+    ok.
+
+check_stop_ret(?ERL_NIF_SELECT_STOP_CALLED) -> ok;
 check_stop_ret(?ERL_NIF_SELECT_STOP_SCHEDULED) -> ok.
 
 write_full(W, C) ->
@@ -2952,6 +3023,180 @@ nif_whereis_proxy(Ref) ->
         {Ref, quit} ->
             ok
     end.
+nif_ioq(Config) ->
+    ensure_lib_loaded(Config),
+
+    Script =
+        [{create, a},
+
+         %% Test enq of erlang term binary
+         {enqb,   a},
+         {enqb,   a, 3},
+
+         %% Test enq of non-erlang term binary
+         {enqbraw,a},
+         {enqbraw,a, 5},
+         {peek,   a},
+         {deq,    a, 42},
+
+         %% Test enqv
+         {enqv,   a, 2, 100},
+         {deq,    a, all},
+
+         %% This skips all elements but one in the iolist
+         {enqv,   a, 5, iolist_size(nif_ioq_payload(5)) - 1},
+         {peek,   a},
+
+         %% Test to enqueue a bunch of refc binaries
+         {enqv,   a, [nif_ioq_payload(refcbin) || _ <- lists:seq(1,20)], 0},
+
+         %% Enq stuff to destroy with data in queue
+         {enqv,   a, 2, 100},
+         {destroy,a},
+
+         %% Test destroy of new queue
+         {create, a},
+         {destroy,a}
+        ],
+
+    nif_ioq_run(Script),
+
+    %% Test that only enif_inspect_as_vec works
+    Payload = nif_ioq_payload(5),
+    PayloadBin = iolist_to_binary(Payload),
+
+    [begin
+         PayloadBin = iolist_to_binary(ioq_nif(inspect,Payload,Stack,Env)),
+         <<>>       = iolist_to_binary(ioq_nif(inspect,[],Stack,Env))
+     end || Stack <- [no_stack, use_stack], Env <- [use_env, no_env]],
+
+    %% Test error cases
+
+    Q = ioq_nif(create),
+
+    {'EXIT', {badarg, _}} = (catch ioq_nif(deq, Q, 1)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(enqv, Q, 1, 1234)),
+
+    {'EXIT', {badarg, _}} = (catch ioq_nif(enqv, Q, [atom_in_list], 0)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(enqv, Q, [make_ref()], 0)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(enqv, Q, [256], 0)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(enqv, Q, [-1], 0)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(enqv, Q, [#{}], 0)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(enqv, Q, [1 bsl 64], 0)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(enqv, Q, [{tuple}], 0)),
+
+    {'EXIT', {badarg, _}} = (catch ioq_nif(inspect,  [atom_in_list], use_stack)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(inspect,  [make_ref()], no_stack)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(inspect,  [256], use_stack)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(inspect,  [-1], no_stack)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(inspect,  [#{}], use_stack)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(inspect,  [1 bsl 64], no_stack)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(inspect,  [{tuple}], use_stack)),
+    {'EXIT', {badarg, _}} = (catch ioq_nif(inspect,  <<"binary">>, use_stack)),
+
+    ioq_nif(destroy, Q),
+
+    %% Test that the example in the docs works
+    ExampleQ = ioq_nif(create),
+    true = ioq_nif(example, ExampleQ, nif_ioq_payload(5)),
+    ioq_nif(destroy, ExampleQ),
+
+    ok.
+
+
+nif_ioq_run(Script) ->
+    nif_ioq_run(Script, #{}).
+
+nif_ioq_run([{Action, Name}|T], State)
+  when Action =:= enqb; Action =:= enqbraw ->
+    nif_ioq_run([{Action, Name, heapbin}|T], State);
+nif_ioq_run([{Action, Name, Skip}|T], State)
+  when Action =:= enqb, is_integer(Skip);
+       Action =:= enqbraw, is_integer(Skip) ->
+    nif_ioq_run([{Action, Name, heapbin, Skip}|T], State);
+nif_ioq_run([{Action, Name, N}|T], State)
+  when Action =:= enqv; Action =:= enqb; Action =:= enqbraw ->
+    nif_ioq_run([{Action, Name, N, 0}|T], State);
+nif_ioq_run([{Action, Name, N, Skip}|T], State)
+  when Action =:= enqv; Action =:= enqb; Action =:= enqbraw ->
+
+    #{ q := IOQ, b := B } = Q = maps:get(Name, State),
+    true = ioq_nif(size, IOQ) == iolist_size(B),
+
+    %% Sanitize the log output a bit so that it doesn't become too large.
+    H = {Action, Name, try iolist_size(N) of Sz -> Sz catch _:_ -> N end, Skip},
+    ct:log("~p", [H]),
+
+    Data = nif_ioq_payload(N),
+    ioq_nif(Action, IOQ, Data, Skip),
+
+    <<_:Skip/binary, SkippedData/binary>> = iolist_to_binary(Data),
+
+    true = ioq_nif(size, IOQ) == (iolist_size([B|SkippedData])),
+
+    nif_ioq_run(T, State#{ Name := Q#{ b := [B|SkippedData]}});
+nif_ioq_run([{peek, Name} = H|T], State) ->
+    #{ q := IOQ, b := B } = maps:get(Name, State),
+    true = ioq_nif(size, IOQ) == iolist_size(B),
+
+    ct:log("~p", [H]),
+
+    Data = ioq_nif(peek, IOQ, ioq_nif(size, IOQ)),
+
+    true = iolist_to_binary(B) == iolist_to_binary(Data),
+    nif_ioq_run(T, State);
+nif_ioq_run([{deq, Name, all}|T], State) ->
+    #{ q := IOQ, b := B } = maps:get(Name, State),
+    Size = ioq_nif(size, IOQ),
+    true = Size == iolist_size(B),
+    nif_ioq_run([{deq, Name, Size}|T], State);
+nif_ioq_run([{deq, Name, N} = H|T], State) ->
+    #{ q := IOQ, b := B } = Q = maps:get(Name, State),
+    true = ioq_nif(size, IOQ) == iolist_size(B),
+
+    ct:log("~p", [H]),
+
+    <<_:N/binary,Remain/binary>> = iolist_to_binary(B),
+    NewQ = Q#{ b := Remain },
+
+    Sz = ioq_nif(deq, IOQ, N),
+
+    true = Sz == iolist_size(Remain),
+    true = ioq_nif(size, IOQ) == iolist_size(Remain),
+
+    nif_ioq_run(T, State#{ Name := NewQ });
+nif_ioq_run([{create, Name} = H|T], State) ->
+    ct:log("~p", [H]),
+    nif_ioq_run(T, State#{ Name => #{ q => ioq_nif(create), b => [] } });
+nif_ioq_run([{destroy, Name} = H|T], State) ->
+    #{ q := IOQ, b := B } = maps:get(Name, State),
+    true = ioq_nif(size, IOQ) == iolist_size(B),
+
+    ct:log("~p", [H]),
+
+    ioq_nif(destroy, IOQ),
+
+    nif_ioq_run(T, maps:remove(Name, State));
+nif_ioq_run([], State) ->
+    State.
+
+nif_ioq_payload(N) when is_integer(N) ->
+    Tail = if N > 3 -> nif_ioq_payload(N-3); true -> [] end,
+    Head = element(1, lists:split(N,[nif_ioq_payload(subbin),
+                                     nif_ioq_payload(heapbin),
+                                     nif_ioq_payload(refcbin) | Tail])),
+    erlang:iolist_to_iovec(Head);
+nif_ioq_payload(subbin) ->
+    Bin = nif_ioq_payload(refcbin),
+    Sz = size(Bin) - 1,
+    <<_:8,SubBin:Sz/binary,_/bits>> = Bin,
+    SubBin;
+nif_ioq_payload(heapbin) ->
+    <<"a literal heap binary">>;
+nif_ioq_payload(refcbin) ->
+    iolist_to_binary([lists:seq(1,255) || _ <- lists:seq(1,255)]);
+nif_ioq_payload(Else) ->
+    Else.
 
 %% The NIFs:
 lib_version() -> undefined.
@@ -3017,16 +3262,22 @@ binary_to_term_nif(_, _, _) -> ?nif_stub.
 port_command_nif(_, _) -> ?nif_stub.
 format_term_nif(_,_) -> ?nif_stub.
 select_nif(_,_,_,_,_) -> ?nif_stub.
+dupe_resource_nif(_) -> ?nif_stub.
 pipe_nif() -> ?nif_stub.
 write_nif(_,_) -> ?nif_stub.
 read_nif(_,_) -> ?nif_stub.
 is_closed_nif(_) -> ?nif_stub.
+clear_select_nif(_) -> ?nif_stub.
 last_fd_stop_call() -> ?nif_stub.
 alloc_monitor_resource_nif() -> ?nif_stub.
 monitor_process_nif(_,_,_,_) -> ?nif_stub.
 demonitor_process_nif(_,_) -> ?nif_stub.
 compare_monitors_nif(_,_) -> ?nif_stub.
 monitor_frenzy_nif(_,_,_,_) -> ?nif_stub.
+ioq_nif(_) -> ?nif_stub.
+ioq_nif(_,_) -> ?nif_stub.
+ioq_nif(_,_,_) -> ?nif_stub.
+ioq_nif(_,_,_,_) -> ?nif_stub.
 
 %% whereis
 whereis_send(_Type,_Name,_Msg) -> ?nif_stub.
diff --git a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
index 307d1c390f..79560a38aa 100644
--- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
+++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
@@ -186,6 +186,12 @@ static ErlNifResourceTypeInit frenzy_rt_init = {
 
 static ErlNifResourceType* whereis_resource_type;
 static void whereis_thread_resource_dtor(ErlNifEnv* env, void* obj);
+static ErlNifResourceType* ioq_resource_type;
+
+static void ioq_resource_dtor(ErlNifEnv* env, void* obj);
+struct ioq_resource {
+    ErlNifIOQueue *q;
+};
 
 static int get_pointer(ErlNifEnv* env, ERL_NIF_TERM term, void** pp)
 {
@@ -243,6 +249,10 @@ static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info)
     whereis_resource_type = enif_open_resource_type(env, NULL, "nif_SUITE.whereis",
                             whereis_thread_resource_dtor, ERL_NIF_RT_CREATE, NULL);
 
+    ioq_resource_type = enif_open_resource_type(env,NULL,"ioq",
+                                                ioq_resource_dtor,
+                                                ERL_NIF_RT_CREATE, NULL);
+
     atom_false = enif_make_atom(env,"false");
     atom_true = enif_make_atom(env,"true");
     atom_self = enif_make_atom(env,"self");
@@ -2430,7 +2440,6 @@ static ERL_NIF_TERM format_term(ErlNifEnv* env, int argc, const ERL_NIF_TERM arg
     return enif_make_binary(env,&obin);
 }
 
-
 static int get_fd(ErlNifEnv* env, ERL_NIF_TERM term, struct fd_resource** rsrc)
 {
     if (!enif_get_resource(env, term, fd_resource_type, (void**)rsrc)) {
@@ -2439,6 +2448,13 @@ static int get_fd(ErlNifEnv* env, ERL_NIF_TERM term, struct fd_resource** rsrc)
     return 1;
 }
 
+/* Returns: badarg
+ *    Or an enif_select result, which is a combination of bits:
+ *    ERL_NIF_SELECT_STOP_CALLED = 1
+ *    ERL_NIF_SELECT_STOP_SCHEDULED = 2
+ *    ERL_NIF_SELECT_INVALID_EVENT = 4
+ *    ERL_NIF_SELECT_FAILED = 8
+ */
 static ERL_NIF_TERM select_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
 {
     struct fd_resource* fdr;
@@ -2470,6 +2486,9 @@ static ERL_NIF_TERM select_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv
 }
 
 #ifndef __WIN32__
+/*
+ * Create a read-write pipe with two fds (to read and to write)
+ */
 static ERL_NIF_TERM pipe_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
 {
     struct fd_resource* read_rsrc;
@@ -2505,6 +2524,30 @@ static ERL_NIF_TERM pipe_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]
                enif_make_tuple2(env, write_fd, make_pointer(env, write_rsrc)));
 }
 
+/*
+ * Create (dupe) of a resource with the same fd, to test stealing
+ */
+static ERL_NIF_TERM dupe_resource_nif(ErlNifEnv* env, int argc,
+                                      const ERL_NIF_TERM argv[]) {
+    struct fd_resource* orig_rsrc;
+
+    if (!get_fd(env, argv[0], &orig_rsrc)) {
+        return enif_make_badarg(env);
+    } else {
+        struct fd_resource* new_rsrc;
+        ERL_NIF_TERM new_fd;
+
+        new_rsrc = enif_alloc_resource(fd_resource_type,
+                                       sizeof(struct fd_resource));
+        new_rsrc->fd = orig_rsrc->fd;
+        new_rsrc->was_selected = 0;
+        new_fd = enif_make_resource(env, new_rsrc);
+        enif_release_resource(new_rsrc);
+
+        return enif_make_tuple2(env, new_fd, make_pointer(env, new_rsrc));
+    }
+}
+
 static ERL_NIF_TERM write_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
 {
     struct fd_resource* fdr;
@@ -2580,6 +2623,20 @@ static ERL_NIF_TERM is_closed_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM a
 
     return fdr->fd < 0 ? atom_true : atom_false;
 }
+
+static ERL_NIF_TERM clear_select_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+    struct fd_resource* fdr = NULL;
+
+    if (!get_fd(env, argv[0], &fdr))
+        return enif_make_badarg(env);
+
+    fdr->fd = -1;
+    fdr->was_selected = 0;
+
+    return atom_ok;
+}
+
 #endif /* !__WIN32__ */
 
 
@@ -3158,7 +3215,231 @@ static void frenzy_resource_down(ErlNifEnv* env, void* obj, ErlNifPid* pid,
     abort();
 }
 
+/*********** testing ioq ************/
+
+static void ioq_resource_dtor(ErlNifEnv* env, void* obj) {
+
+}
+
+#ifndef __WIN32__
+static int writeiovec(ErlNifEnv *env, ERL_NIF_TERM term, ERL_NIF_TERM *tail, ErlNifIOQueue *q, int fd) {
+    ErlNifIOVec vec, *iovec = &vec;
+    SysIOVec *sysiovec;
+    int saved_errno;
+    int iovcnt, n;
+
+    if (!enif_inspect_iovec(env, 64, term, tail, &iovec))
+        return -2;
+
+    if (enif_ioq_size(q) > 0) {
+        /* If the I/O queue contains data we enqueue the iovec and then
+           peek the data to write out of the queue. */
+        if (!enif_ioq_enqv(q, iovec, 0))
+            return -3;
+
+        sysiovec = enif_ioq_peek(q, &iovcnt);
+    } else {
+        /* If the I/O queue is empty we skip the trip through it. */
+        iovcnt = iovec->iovcnt;
+        sysiovec = iovec->iov;
+    }
+
+    /* Attempt to write the data */
+    n = writev(fd, sysiovec, iovcnt);
+    saved_errno = errno;
+
+    if (enif_ioq_size(q) == 0) {
+        /* If the I/O queue was initially empty we enqueue any
+           remaining data into the queue for writing later. */
+        if (n >= 0 && !enif_ioq_enqv(q, iovec, n))
+            return -3;
+    } else {
+        /* Dequeue any data that was written from the queue. */
+        if (n > 0 && !enif_ioq_deq(q, n, NULL))
+            return -4;
+    }
+
+    /* return n, which is either number of bytes written or -1 if
+       some error happened */
+    errno = saved_errno;
+    return n;
+}
+#endif
+
+static ERL_NIF_TERM ioq(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+    struct ioq_resource *ioq;
+    ERL_NIF_TERM ret;
+    if (enif_is_identical(argv[0], enif_make_atom(env, "create"))) {
+        ErlNifIOQueue *q = enif_ioq_create(ERL_NIF_IOQ_NORMAL);
+        ioq = (struct ioq_resource *)enif_alloc_resource(ioq_resource_type,
+                                                         sizeof(*ioq));
+        ioq->q = q;
+        ret = enif_make_resource(env, ioq);
+        enif_release_resource(ioq);
+        return ret;
+    } else if (enif_is_identical(argv[0], enif_make_atom(env, "inspect"))) {
+        ErlNifIOVec vec, *iovec = NULL;
+        int i, iovcnt;
+        ERL_NIF_TERM *elems, tail, list;
+        ErlNifEnv *myenv = NULL;
+
+        if (enif_is_identical(argv[2], enif_make_atom(env, "use_stack")))
+            iovec = &vec;
+        if (enif_is_identical(argv[3], enif_make_atom(env, "use_env")))
+            myenv = env;
+        if (!enif_inspect_iovec(myenv, ~(size_t)0, argv[1], &tail, &iovec))
+            return enif_make_badarg(env);
+
+        iovcnt = iovec->iovcnt;
+        elems = enif_alloc(sizeof(ERL_NIF_TERM) * iovcnt);
 
+        for (i = 0; i < iovcnt; i++) {
+            ErlNifBinary bin;
+            if (!enif_alloc_binary(iovec->iov[i].iov_len, &bin)) {
+                enif_free_iovec(iovec);
+                enif_free(elems);
+                return enif_make_badarg(env);
+            }
+            memcpy(bin.data, iovec->iov[i].iov_base, iovec->iov[i].iov_len);
+            elems[i] = enif_make_binary(env, &bin);
+        }
+
+        if (!myenv)
+            enif_free_iovec(iovec);
+
+	list = enif_make_list_from_array(env, elems, iovcnt);
+	enif_free(elems);
+	return list;
+    } else {
+        unsigned skip;
+        if (!enif_get_resource(env, argv[1], ioq_resource_type, (void**)&ioq)
+            || !ioq->q)
+            return enif_make_badarg(env);
+
+        if (enif_is_identical(argv[0], enif_make_atom(env, "example"))) {
+#ifndef __WIN32__
+            int fd[2], res = 0, cnt = 0, queue_cnt;
+            ERL_NIF_TERM tail;
+            char buff[255];
+            pipe(fd);
+            fcntl(fd[0], F_SETFL, fcntl(fd[0], F_GETFL) | O_NONBLOCK);
+            fcntl(fd[1], F_SETFL, fcntl(fd[1], F_GETFL) | O_NONBLOCK);
+
+            /* Write until the pipe buffer is full, which should result in data
+             * being queued up. */
+            for (res = 0; res >= 0; ) {
+                cnt += res;
+                res = writeiovec(env, argv[2], &tail, ioq->q, fd[1]);
+            }
+
+            /* Flush the queue while reading from the other end of the pipe. */
+            tail = enif_make_list(env, 0);
+            while (enif_ioq_size(ioq->q) > 0) {
+                res = writeiovec(env, tail, &tail, ioq->q, fd[1]);
+
+                if (res < 0 && errno != EAGAIN) {
+                    break;
+                } else if (res > 0) {
+                    cnt += res;
+                }
+
+                for (res = 0; res >= 0; ) {
+                    cnt -= res;
+                    res = read(fd[0], buff, sizeof(buff));
+                }
+            }
+
+            close(fd[0]);
+            close(fd[1]);
+
+            /* Check that we read as much as we wrote */
+            if (cnt == 0 && enif_ioq_size(ioq->q) == 0)
+                return enif_make_atom(env, "true");
+
+            return enif_make_int(env, cnt);
+#else
+            return enif_make_atom(env, "true");
+#endif
+        }
+        if (enif_is_identical(argv[0], enif_make_atom(env, "destroy"))) {
+            enif_ioq_destroy(ioq->q);
+            ioq->q = NULL;
+            return enif_make_atom(env, "false");
+        } else if (enif_is_identical(argv[0], enif_make_atom(env, "enqv"))) {
+            ErlNifIOVec vec, *iovec = &vec;
+            ERL_NIF_TERM tail;
+
+            if (!enif_get_uint(env, argv[3], &skip))
+                return enif_make_badarg(env);
+            if (!enif_inspect_iovec(env, ~0ul, argv[2], &tail, &iovec))
+                return enif_make_badarg(env);
+            if (!enif_ioq_enqv(ioq->q, iovec, skip))
+                return enif_make_badarg(env);
+
+            return enif_make_atom(env, "true");
+        } else if (enif_is_identical(argv[0], enif_make_atom(env, "enqb"))) {
+            ErlNifBinary bin;
+            if (!enif_get_uint(env, argv[3], &skip) ||
+                !enif_inspect_binary(env, argv[2], &bin))
+                return enif_make_badarg(env);
+
+            if (!enif_ioq_enq_binary(ioq->q, &bin, skip))
+                return enif_make_badarg(env);
+
+            return enif_make_atom(env, "true");
+        } else if (enif_is_identical(argv[0], enif_make_atom(env, "enqbraw"))) {
+            ErlNifBinary bin;
+            ErlNifBinary localbin;
+	    int i;
+            if (!enif_get_uint(env, argv[3], &skip) ||
+                !enif_inspect_binary(env, argv[2], &bin) ||
+                !enif_alloc_binary(bin.size, &localbin))
+                return enif_make_badarg(env);
+
+            memcpy(localbin.data, bin.data, bin.size);
+            i = enif_ioq_enq_binary(ioq->q, &localbin, skip);
+	    if (!i)
+		return enif_make_badarg(env);
+	    else
+		return enif_make_atom(env, "true");
+        } else if (enif_is_identical(argv[0], enif_make_atom(env, "peek"))) {
+            int iovlen, num, i, off = 0;
+            SysIOVec *iov = enif_ioq_peek(ioq->q, &iovlen);
+            ErlNifBinary bin;
+
+            if (!enif_get_int(env, argv[2], &num) || !enif_alloc_binary(num, &bin))
+                return enif_make_badarg(env);
+
+            for (i = 0; i < iovlen && num > 0; i++) {
+                int to_copy = num < iov[i].iov_len ? num : iov[i].iov_len;
+                memcpy(bin.data + off, iov[i].iov_base, to_copy);
+                num -= to_copy;
+                off += to_copy;
+            }
+
+            return enif_make_binary(env, &bin);
+        } else if (enif_is_identical(argv[0], enif_make_atom(env, "deq"))) {
+            int num;
+            size_t sz;
+            ErlNifUInt64 sz64;
+            if (!enif_get_int(env, argv[2], &num))
+                return enif_make_badarg(env);
+
+            if (!enif_ioq_deq(ioq->q, num, &sz))
+                return enif_make_badarg(env);
+
+            sz64 = sz;
+
+            return enif_make_uint64(env, sz64);
+        } else if (enif_is_identical(argv[0], enif_make_atom(env, "size"))) {
+            ErlNifUInt64 size = enif_ioq_size(ioq->q);
+            return enif_make_uint64(env, size);
+        }
+    }
+
+    return enif_make_badarg(env);
+}
 
 static ErlNifFunc nif_funcs[] =
 {
@@ -3243,8 +3524,10 @@ static ErlNifFunc nif_funcs[] =
 #ifndef __WIN32__
     {"pipe_nif", 0, pipe_nif},
     {"write_nif", 2, write_nif},
+    {"dupe_resource_nif", 1, dupe_resource_nif},
     {"read_nif", 2, read_nif},
     {"is_closed_nif", 1, is_closed_nif},
+    {"clear_select_nif", 1, clear_select_nif},
 #endif
     {"last_fd_stop_call", 0, last_fd_stop_call},
     {"alloc_monitor_resource_nif", 0, alloc_monitor_resource_nif},
@@ -3255,7 +3538,11 @@ static ErlNifFunc nif_funcs[] =
     {"whereis_send", 3, whereis_send},
     {"whereis_term", 2, whereis_term},
     {"whereis_thd_lookup", 2, whereis_thd_lookup},
-    {"whereis_thd_result", 1, whereis_thd_result}
+    {"whereis_thd_result", 1, whereis_thd_result},
+    {"ioq_nif", 1, ioq},
+    {"ioq_nif", 2, ioq},
+    {"ioq_nif", 3, ioq},
+    {"ioq_nif", 4, ioq}
 };
 
 ERL_NIF_INIT(nif_SUITE,nif_funcs,load,NULL,upgrade,unload)
diff --git a/erts/emulator/test/node_container_SUITE.erl b/erts/emulator/test/node_container_SUITE.erl
index 8e9e3cb05a..be90f929df 100644
--- a/erts/emulator/test/node_container_SUITE.erl
+++ b/erts/emulator/test/node_container_SUITE.erl
@@ -405,6 +405,7 @@ node_table_gc(Config) when is_list(Config) ->
     PreKnown = nodes(known),
     io:format("PreKnown = ~p~n", [PreKnown]),
     make_node_garbage(0, 200000, 1000, []),
+    receive after 1000 -> ok end, %% Wait for thread progress...
     PostKnown = nodes(known),
     PostAreas = erlang:system_info(allocated_areas),
     io:format("PostKnown = ~p~n", [PostKnown]),
diff --git a/erts/emulator/test/num_bif_SUITE.erl b/erts/emulator/test/num_bif_SUITE.erl
index 1c76eb8019..17555d63c6 100644
--- a/erts/emulator/test/num_bif_SUITE.erl
+++ b/erts/emulator/test/num_bif_SUITE.erl
@@ -145,7 +145,7 @@ t_float_to_string(Config) when is_list(Config) ->
 				     123456789012345678.0, [{decimals, 237}])),
     {'EXIT', {badarg, _}} = (catch float_to_binary(
 				     123456789012345678.0, [{decimals, 237}])),
-    test_fts("1." ++ string:copies("0", 249) ++ "e+00",
+    test_fts("1." ++ lists:duplicate(249, $0) ++ "e+00",
 	     1.0,  [{scientific, 249}, compact]),
 
     X1 = float_to_list(1.0),
diff --git a/erts/emulator/test/port_SUITE.erl b/erts/emulator/test/port_SUITE.erl
index ab0b1a82bd..f29528a22f 100644
--- a/erts/emulator/test/port_SUITE.erl
+++ b/erts/emulator/test/port_SUITE.erl
@@ -159,7 +159,7 @@ suite() ->
 all() ->
     [otp_6224, {group, stream}, basic_ping, slow_writes,
      bad_packet, bad_port_messages, {group, options},
-     {group, multiple_packets}, parallell, dying_port,
+     {group, multiple_packets}, parallell, dying_port, dropped_commands,
      port_program_with_path, open_input_file_port,
      open_output_file_port, name1, env, huge_env, bad_env, cd,
      cd_relative, pipe_limit_env, bad_args,
@@ -569,12 +569,14 @@ dropped_commands(Config, Outputv, Cmd) ->
     [dropped_commands_test(Cmd) || _ <- lists:seq(1, 100)],
     timer:sleep(100),
     erl_ddll:unload_driver("echo_drv"),
+    os:unsetenv("ECHO_DRV_USE_OUTPUTV"),
     ok.
 
 dropped_commands_test(Cmd) ->
-    Port = erlang:open_port({spawn_driver, "echo_drv"}, [{parallelism, true}]),
     spawn_monitor(
       fun() ->
+              Port = erlang:open_port({spawn_driver, "echo_drv"},
+                                      [{parallelism, true}]),
               [spawn_link(fun() -> spin(Port, Cmd) end) || _ <- lists:seq(1,8)],
               timer:sleep(5),
               port_close(Port),
@@ -1660,13 +1662,7 @@ spawn_executable(Config) when is_list(Config) ->
     [ExactFile2,"hello world","dlrow olleh"] =
     run_echo_args_2(unicode:characters_to_binary("\""++ExactFile2++"\" "++"\"hello world\" \"dlrow olleh\"")),
 
-    ExeExt =
-    case string:to_lower(lists:last(string:tokens(ExactFile2,"."))) of
-        "exe" ->
-            ".exe";
-        _ ->
-            ""
-    end,
+    ExeExt = filename:extension(ExactFile2),
     Executable2 = "spoky name"++ExeExt,
     file:copy(ExactFile1,filename:join([SpaceDir,Executable2])),
     ExactFile3 = filename:nativename(filename:join([SpaceDir,Executable2])),
@@ -1834,7 +1830,7 @@ collect_data(Port) ->
     end.
 
 parse_echo_args_output(Data) ->
-    [lists:last(string:tokens(S,"|")) || S <- string:tokens(Data,"\r\n")].
+    [lists:last(string:lexemes(S,"|")) || S <- string:lexemes(Data,["\r\n",$\n])].
 
 %% Test that the emulator does not mix up ports when the port table wraps
 mix_up_ports(Config) when is_list(Config) ->
@@ -1960,7 +1956,7 @@ max_ports() ->
     erlang:system_info(port_limit).
 
 port_ix(Port) when is_port(Port) ->
-    ["#Port",_,PortIxStr] = string:tokens(erlang:port_to_list(Port),
+    ["#Port",_,PortIxStr] = string:lexemes(erlang:port_to_list(Port),
                                           "<.>"),
     list_to_integer(PortIxStr).
 
diff --git a/erts/emulator/test/process_SUITE.erl b/erts/emulator/test/process_SUITE.erl
index 6ded7ff1c9..a9f20f9928 100644
--- a/erts/emulator/test/process_SUITE.erl
+++ b/erts/emulator/test/process_SUITE.erl
@@ -152,7 +152,11 @@ spawn_with_binaries(Config) when is_list(Config) ->
     TwoMeg = lists:duplicate(1024, L),
     Fun = fun() -> spawn(?MODULE, binary_owner, [list_to_binary(TwoMeg)]),
 			 receive after 1 -> ok end end,
-    test_server:do_times(150, Fun),
+    Iter = case test_server:is_valgrind() of
+		     true -> 10;
+		     false -> 150
+		 end,
+    test_server:do_times(Iter, Fun),
     ok.
 
 binary_owner(Bin) when is_binary(Bin) ->
diff --git a/erts/emulator/test/scheduler_SUITE.erl b/erts/emulator/test/scheduler_SUITE.erl
index 12e26671c2..7eebbe8b19 100644
--- a/erts/emulator/test/scheduler_SUITE.erl
+++ b/erts/emulator/test/scheduler_SUITE.erl
@@ -57,6 +57,7 @@
 	 scheduler_suspend_basic/1,
 	 scheduler_suspend/1,
 	 dirty_scheduler_threads/1,
+         poll_threads/1,
 	 reader_groups/1]).
 
 suite() ->
@@ -72,6 +73,7 @@ all() ->
      {group, scheduler_bind}, scheduler_threads,
      scheduler_suspend_basic, scheduler_suspend,
      dirty_scheduler_threads,
+     poll_threads,
      reader_groups].
 
 groups() -> 
@@ -892,11 +894,9 @@ adjust_schedulers_online() ->
 
 read_affinity(Data) ->
     Exp = "pid " ++ os:getpid() ++ "'s current affinity mask",
-    case string:tokens(Data, ":") of
+    case string:lexemes(Data, ":") of
 	[Exp, DirtyAffinityStr] ->
-	    AffinityStr = string:strip(string:strip(DirtyAffinityStr,
-						    both, $ ),
-				       both, $\n),
+	    AffinityStr = string:trim(DirtyAffinityStr),
 	    case catch erlang:list_to_integer(AffinityStr, 16) of
 		Affinity when is_integer(Affinity) ->
 		    Affinity;
@@ -1446,6 +1446,79 @@ sst5_loop(N) ->
     erlang:system_flag(multi_scheduling, unblock_normal),
     sst5_loop(N-1).
 
+poll_threads(Config) when is_list(Config) ->
+    {Conc, PollType, KP} = get_ioconfig(Config),
+    {Sched, SchedOnln, _} = get_sstate(Config, ""),
+
+    [1, 1] = get_ionum(Config,"+IOt 2 +IOp 2"),
+    [1, 1, 1, 1, 1] = get_ionum(Config,"+IOt 5 +IOp 5"),
+
+    [1, 1] = get_ionum(Config, "+S 2 +IOPt 100 +IOPp 100"),
+
+    if
+        Conc ->
+            [5] = get_ionum(Config,"+IOt 5 +IOp 1"),
+            [3, 2] = get_ionum(Config,"+IOt 5 +IOp 2"),
+            [2, 2, 2, 2, 2] = get_ionum(Config,"+IOt 10 +IOPp 50"),
+
+            [2] = get_ionum(Config, "+S 2 +IOPt 100"),
+            [4] = get_ionum(Config, "+S 4 +IOPt 100"),
+            [4] = get_ionum(Config, "+S 4:2 +IOPt 100"),
+            [4, 4] = get_ionum(Config, "+S 8 +IOPt 100 +IOPp 25"),
+
+            fail = get_ionum(Config, "+IOt 1 +IOp 2"),
+
+            ok;
+        not Conc ->
+            [1, 1, 1, 1, 1] = get_ionum(Config,"+IOt 5 +IOp 1"),
+            [1, 1, 1, 1, 1] = get_ionum(Config,"+IOt 5 +IOp 2"),
+            [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] = get_ionum(Config,"+IOt 10 +IOPp 50"),
+
+            [1, 1] = get_ionum(Config, "+S 2 +IOPt 100"),
+            [1, 1, 1, 1] = get_ionum(Config, "+S 4 +IOPt 100"),
+            [1, 1, 1, 1] = get_ionum(Config, "+S 4:2 +IOPt 100"),
+            [1, 1, 1, 1, 1, 1, 1, 1] = get_ionum(Config, "+S 8 +IOPt 100 +IOPp 25"),
+
+            [1] = get_ionum(Config, "+IOt 1 +IOp 2"),
+
+            ok
+    end,
+
+    fail = get_ionum(Config, "+IOt 1 +IOPp 101"),
+    fail = get_ionum(Config, "+IOt 0"),
+    fail = get_ionum(Config, "+IOPt 101"),
+
+    ok.
+
+get_ioconfig(Config) ->
+    [PS | _] = get_iostate(Config, ""),
+    {proplists:get_value(concurrent_updates, PS),
+     proplists:get_value(primary, PS),
+     proplists:get_value(kernel_poll, PS)}.
+
+get_ionum(Config, Cmd) ->
+    case get_iostate(Config, Cmd) of
+        fail -> fail;
+        PSs ->
+            lists:reverse(
+              lists:sort(
+                [proplists:get_value(poll_threads, PS) || PS <- PSs]))
+    end.
+
+get_iostate(Config, Cmd)->
+    case start_node(Config, Cmd) of
+        {ok, Node} ->
+            [IOStates] = mcall(Node,[fun () ->
+                                             erlang:system_info(check_io)
+                                     end]),
+            IO = [IOState || IOState <- IOStates,
+                             proplists:get_value(fallback, IOState) == false],
+            stop_node(Node),
+            IO;
+        {error,timeout} ->
+            fail
+    end.
+
 reader_groups(Config) when is_list(Config) ->
     %% White box testing. These results are correct, but other results
     %% could be too...
@@ -1770,18 +1843,24 @@ mcall(Node, Funs) ->
     Parent = self(),
     Refs = lists:map(fun (Fun) ->
                              Ref = make_ref(),
-                             spawn_link(Node,
-                                        fun () ->
-                                                Res = Fun(),
-                                                unlink(Parent),
-                                                Parent ! {Ref, Res}
-                                        end),
-                             Ref
+                             Pid = spawn(Node,
+                                         fun () ->
+                                                 Res = Fun(),
+                                                 unlink(Parent),
+                                                 Parent ! {Ref, Res}
+                                         end),
+                             MRef = erlang:monitor(process, Pid),
+                             {Ref, MRef}
                      end, Funs),
-    lists:map(fun (Ref) ->
+    lists:map(fun ({Ref, MRef}) ->
                       receive
                           {Ref, Res} ->
-                              Res
+                              receive
+                                  {'DOWN',MRef,_,_,_} ->
+                                      Res
+                              end;
+                          {'DOWN',MRef,_,_,Reason} ->
+                              Reason
                       end
               end, Refs).
 
diff --git a/erts/emulator/test/statistics_SUITE.erl b/erts/emulator/test/statistics_SUITE.erl
index 6c01bfd45c..029a6de897 100644
--- a/erts/emulator/test/statistics_SUITE.erl
+++ b/erts/emulator/test/statistics_SUITE.erl
@@ -23,8 +23,10 @@
 %% Tests the statistics/1 bif.
 
 -export([all/0, suite/0, groups/0,
+         wall_clock_sanity/1,
 	 wall_clock_zero_diff/1, wall_clock_update/1,
-	 runtime_zero_diff/1,
+         runtime_sanity/1,
+         runtime_zero_diff/1,
 	 runtime_update/1, runtime_diff/1,
 	 run_queue_one/1,
 	 scheduler_wall_time/1,
@@ -54,11 +56,23 @@ all() ->
 
 groups() -> 
     [{wall_clock, [],
-      [wall_clock_zero_diff, wall_clock_update]},
+      [wall_clock_sanity, wall_clock_zero_diff, wall_clock_update]},
      {runtime, [],
-      [runtime_zero_diff, runtime_update, runtime_diff]},
+      [runtime_sanity, runtime_zero_diff, runtime_update, runtime_diff]},
      {run_queue, [], [run_queue_one]}].
 
+wall_clock_sanity(Config) when is_list(Config) ->
+    erlang:yield(),
+    {WallClock, _} = statistics(wall_clock),
+    MT = erlang:monotonic_time(),
+    Time = erlang:convert_time_unit(MT - erlang:system_info(start_time),
+                                    native, millisecond),
+    io:format("Time=~p WallClock=~p~n",
+              [Time, WallClock]),
+    true = WallClock =< Time,
+    true = Time - 100 =< WallClock,
+    ok.
+
 %%% Testing statistics(wall_clock).
 
 %% Tests that the 'Wall clock since last call' element of the result
@@ -102,6 +116,20 @@ wall_clock_update1(0) ->
 
 %%% Test statistics(runtime).
 
+runtime_sanity(Config) when is_list(Config) ->
+    case erlang:system_info(logical_processors_available) of
+        unknown ->
+            {skipped, "Don't know available logical processors"};
+        LP when is_integer(LP) ->
+            erlang:yield(),
+            {RunTime, _} = statistics(runtime),
+            MT = erlang:monotonic_time(),
+            Time = erlang:convert_time_unit(MT - erlang:system_info(start_time),
+                                            native, millisecond),
+            io:format("Time=~p RunTime=~p~n",
+                      [Time, RunTime]),
+            true = RunTime =< Time*LP
+    end.
 
 %% Tests that the difference between the times returned from two consectuitive
 %% calls to statistics(runtime) is zero.
@@ -646,6 +674,16 @@ msacc_test(TmpFile) ->
     ets:insert(Tid, {1, hello}),
     ets:delete(Tid),
 
+    %% Check some IO
+    {ok, L} = gen_tcp:listen(0, [{active, true},{reuseaddr,true}]),
+    {ok, Port} = inet:port(L),
+    Pid = spawn(fun() ->
+                        {ok, S} = gen_tcp:accept(L),
+                        (fun F() -> receive M -> F() end end)()
+                end),
+    {ok, C} = gen_tcp:connect("localhost", Port, []),
+    [begin gen_tcp:send(C,"hello"),timer:sleep(1) end || _ <- lists:seq(1,100)],
+
     %% Collect some garbage
     [erlang:garbage_collect() || _ <- lists:seq(1,100)],
 
diff --git a/erts/emulator/test/system_info_SUITE.erl b/erts/emulator/test/system_info_SUITE.erl
index 56522039da..fdf4aab24d 100644
--- a/erts/emulator/test/system_info_SUITE.erl
+++ b/erts/emulator/test/system_info_SUITE.erl
@@ -308,9 +308,9 @@ memory_test(_Config) ->
 
     mem_workers_call(MWs,
 		     fun () ->
-			     list_to_atom("an ugly atom "++integer_to_list(erlang:system_info(scheduler_id))),
-			     list_to_atom("another ugly atom "++integer_to_list(erlang:system_info(scheduler_id))),
-			     list_to_atom("yet another ugly atom "++integer_to_list(erlang:system_info(scheduler_id)))
+			     _ = list_to_atom("an ugly atom "++integer_to_list(erlang:system_info(scheduler_id))),
+			     _ = list_to_atom("another ugly atom "++integer_to_list(erlang:system_info(scheduler_id))),
+			     _ = list_to_atom("yet another ugly atom "++integer_to_list(erlang:system_info(scheduler_id)))
 		     end, []),
     cmp_memory(MWs, "new atoms"),
 
diff --git a/erts/emulator/test/trace_SUITE.erl b/erts/emulator/test/trace_SUITE.erl
index 72acd33033..a81aa64057 100644
--- a/erts/emulator/test/trace_SUITE.erl
+++ b/erts/emulator/test/trace_SUITE.erl
@@ -38,7 +38,7 @@
 	 system_monitor_long_gc_1/1, system_monitor_long_gc_2/1, 
 	 system_monitor_large_heap_1/1, system_monitor_large_heap_2/1,
 	 system_monitor_long_schedule/1,
-	 bad_flag/1, trace_delivered/1]).
+	 bad_flag/1, trace_delivered/1, trap_exit_self_receive/1]).
 
 -include_lib("common_test/include/ct.hrl").
 
@@ -61,7 +61,8 @@ all() ->
      more_system_monitor_args, system_monitor_long_gc_1,
      system_monitor_long_gc_2, system_monitor_large_heap_1,
      system_monitor_long_schedule,
-     system_monitor_large_heap_2, bad_flag, trace_delivered].
+     system_monitor_large_heap_2, bad_flag, trace_delivered,
+     trap_exit_self_receive].
 
 init_per_testcase(_Case, Config) ->
     [{receiver,spawn(fun receiver/0)}|Config].
@@ -1709,6 +1710,31 @@ trace_delivered(Config) when is_list(Config) ->
               ok
     end.
 
+%% This testcase checks that receive trace works on exit signal messages
+%% when the sender of the exit signal is the process itself.
+trap_exit_self_receive(Config) ->
+    Parent = self(),
+    Proc = spawn_link(fun() -> process(Parent) end),
+
+    1 = erlang:trace(Proc, true, ['receive']),
+    Proc ! {trap_exit_please, true},
+    {trace, Proc, 'receive', {trap_exit_please, true}} = receive_first_trace(),
+
+    %% Make the process call exit(self(), signal)
+    Reason1 = make_ref(),
+    Proc ! {exit_signal_please, Reason1},
+    {trace, Proc, 'receive', {exit_signal_please, Reason1}} = receive_first_trace(),
+    {trace, Proc, 'receive', {'EXIT', Proc, Reason1}} = receive_first_trace(),
+    receive {Proc, {'EXIT', Proc, Reason1}} -> ok end,
+    receive_nothing(),
+
+    unlink(Proc),
+    Reason2 = make_ref(),
+    Proc ! {exit_please, Reason2},
+    {trace, Proc, 'receive', {exit_please, Reason2}} = receive_first_trace(),
+    receive_nothing(),
+    ok.
+
 drop_trace_until_down(Proc, Mon) ->
     drop_trace_until_down(Proc, Mon, false, 0, 0).
 
@@ -1791,6 +1817,9 @@ process(Dest) ->
             process(Dest);
         {exit_please, Reason} ->
             exit(Reason);
+        {exit_signal_please, Reason} ->
+            exit(self(), Reason),
+            process(Dest);
         {trap_exit_please, State} ->
             process_flag(trap_exit, State),
             process(Dest);
diff --git a/erts/emulator/test/z_SUITE.erl b/erts/emulator/test/z_SUITE.erl
index feea7432a9..ac3df8bfbf 100644
--- a/erts/emulator/test/z_SUITE.erl
+++ b/erts/emulator/test/z_SUITE.erl
@@ -330,7 +330,7 @@ display_check_io(ChkIo) ->
     ok.
 
 get_check_io_info() ->
-    ChkIo = erlang:system_info(check_io),
+    ChkIo = driver_SUITE:get_check_io_total(erlang:system_info(check_io)),
     PendUpdNo = case lists:keysearch(pending_updates, 1, ChkIo) of
 		    {value, {pending_updates, PendNo}} ->
 			PendNo;
diff --git a/erts/emulator/utils/beam_emu_vars b/erts/emulator/utils/beam_emu_vars
new file mode 100755
index 0000000000..c798a4dada
--- /dev/null
+++ b/erts/emulator/utils/beam_emu_vars
@@ -0,0 +1,122 @@
+#!/usr/bin/perl -w
+use strict;
+
+# Analyse beam_emu.s and try to find out the registers
+# used for the important variables in process_main().
+#
+# Works for .s files from clang or gcc. For gcc, the -fverbose-asm
+# option must be used.
+#
+# Example:
+#
+# $ beam-emu-vars -vars 'c_p E HTOP FCALLS I reg freg' beam_emu.s
+# E: %r13
+# FCALLS: %rcx:98 %rax:88 16(%rsp):50 %rdi:6
+# HTOP: %r10:382 64(%rsp):88 72(%rsp):9 24(%rsp):7 %rcx:6 %r15:6 80(%rsp):3 88(%rsp):2
+# I: %rbx
+# c_p: %rbp
+# freg: 48(%rsp):11 %rcx:8 %rdi:5 %rax:4
+# reg: %r12
+#
+# That means that E, I, c_p, reg seems to be assigned to permanent registers.
+# HTOP seems to be assigned %r10, but it is saved to a scratch location
+# before any function calls. FCALLS and freg seems to be saved in a location on
+# the stack and loaded into a register when used.
+#
+# The exit status will be 0 if all variables are assigned to registers (most of
+# the time), and 1 if one or more variables are assigned to a stack location.
+
+my $vars = 'c_p E FCALLS freg HTOP I reg';
+
+while (@ARGV and $ARGV[0] =~ /^-(.*)/) {
+    $_ = $1;
+    shift;
+    ($vars = shift), next if /^vars/;
+    die "$0: Bad option: -$_\n";
+}
+
+my @vars = split(" ", $vars);
+my %vars;
+@vars{@vars} = @vars;
+
+my $inside;
+my %count;
+
+if (@ARGV != 1) {
+    usage();
+}
+
+while (<>) {
+    if (!$inside && /[.]globl\s*_?process_main/) {
+	$inside = 1;
+    } elsif ($inside && /[.]globl/) {
+	last;
+    }
+    if ($inside) {
+	if (/##DEBUG_VALUE:\s*process_main:([A-Za-z]*)\s*<-\s*(.*)/) {
+	    # clang
+	    my($var,$reg) = ($1,$2);
+	    next if $reg =~ /^[-\d]+$/; # Ignore if number.
+	    $count{$var}->{$reg}++ if $vars{$var};
+	    next;
+	}
+
+	# Parse gcc verbose arguments. Comments are marked with
+	# one '#' (clang marks its comments with two '#').
+	my($src,$dst,$comment) = /movq\s+([^#]+), ([^#]+)#(?!#)\s*(.*)/;
+	next unless $comment;
+	$dst =~ s/\s*$//;
+	my($vsrc,$vdst) = split /,/, $comment, 2;
+	$vdst =~ s/^\s//;
+	update_count(\%count, $vsrc, $src);
+	update_count(\%count, $vdst, $dst);
+	if ($vars{$vdst} and $vsrc eq '%sfp') {
+	    $count{$vdst}->{$src}++;
+	}
+    }
+}
+
+my @first;
+
+OUTER:
+for my $var (sort keys %count) {
+    my $total = 0;
+
+    foreach my $reg (keys %{$count{$var}}) {
+	$total += $count{$var}->{$reg}++;
+    }
+
+    foreach my $reg (keys %{$count{$var}}) {
+	if ($count{$var}->{$reg} > 0.9*$total) {
+	    print "$var: $reg\n";
+	    push @first, $var;
+	    next OUTER;
+	}
+    }
+
+    my @r;
+    foreach my $reg (keys %{$count{$var}}) {
+	push @r, $reg;
+    }
+    @r = sort { $count{$var}->{$b} <=> $count{$var}->{$a} } @r;
+    @r = map { "$_:$count{$var}->{$_}" } @r;
+    push @first, $r[0];
+    print "$var: ", join(' ', @r), "\n";
+}
+
+foreach (@first) {
+    exit 1 if /%rsp/;
+}
+exit 0;
+
+sub update_count {
+    my($count_ref,$var,$reg) = @_;
+    return unless $vars{$var};
+    ${${$count_ref}{$var}}{$reg}++;
+}
+
+sub usage {
+    die qq[usage: beam_emu_vars [ -vars "var1 var2..." ] <filename>.s\n\n] .
+	"The exit status is 0 if all variables are assigned to registers,\n" .
+	"and 1 if one or more variables are allocated to a stack location.\n";
+}
diff --git a/erts/emulator/utils/beam_makeops b/erts/emulator/utils/beam_makeops
index 6c54ab3421..d7791d23fa 100755
--- a/erts/emulator/utils/beam_makeops
+++ b/erts/emulator/utils/beam_makeops
@@ -20,39 +20,38 @@
 #
 use strict;
 use vars qw($BEAM_FORMAT_NUMBER);
+use constant COLD => 0;
+use constant WARM => 1;
+use constant HOT => 2;
+
+# Instructions for packing
+use constant PACK_JUMP => 1;
+use constant PACK_IN_INSTR_WORD => 2;
+use constant PACK_OPT_IN_INSTR_WORD => 4;
+
+# Packing commands
+use constant PACK_CMD_TIGHTEST => '1';
+use constant PACK_CMD_TIGHT => '2';
+use constant PACK_CMD_LOOSE => '3';
+use constant PACK_CMD_WIDE => '4';
 
 $BEAM_FORMAT_NUMBER = undef;
 
 my $target = \&emulator_output;
 my $outdir = ".";		# Directory for output files.
 my $verbose = 0;
-my $hot = 1;
+my $hotness = 1;
 my $num_file_opcodes = 0;
 my $wordsize = 32;
-my %defs;			# Defines (from command line).
+my $code_pointers_are_short = 0; # Whether code pointers (to C code) are short.
+my $code_model = 'unknown';
+my %defs;                        # Defines (from command line).
 
 # This is shift counts and mask for the packer.
 my $WHOLE_WORD = '';
-my @pack_instr;
-my @pack_shift;
-my @pack_mask;
-
-$pack_instr[2] = ['6', 'i'];
-$pack_instr[3] = ['0', '0', 'i'];
-$pack_instr[4] = ['6', '6', '6', 'i']; # Only for 64 bit wordsize
-
-$pack_shift[2] = ['0', 'BEAM_LOOSE_SHIFT'];
-$pack_shift[3] = ['0', 'BEAM_TIGHT_SHIFT', '(2*BEAM_TIGHT_SHIFT)'];
-$pack_shift[4] = ['0', 'BEAM_LOOSE_SHIFT', # Only for 64 bit wordsize
-		  '(2*BEAM_LOOSE_SHIFT)',
-		  '(3*BEAM_LOOSE_SHIFT)'];
-
-$pack_mask[2]  = ['BEAM_LOOSE_MASK', $WHOLE_WORD];
-$pack_mask[3]  = ['BEAM_TIGHT_MASK', 'BEAM_TIGHT_MASK', 'BEAM_TIGHT_MASK'];
-$pack_mask[4]  = ['BEAM_LOOSE_MASK', # Only for 64 bit wordsize
-		  'BEAM_LOOSE_MASK',
-		  'BEAM_LOOSE_MASK',
-		  $WHOLE_WORD];
+
+my @basic_pack_options = (0);
+my @extended_pack_options = @basic_pack_options;
 
 # There are two types of instructions: generic and specific.
 # The generic instructions are those generated by the Beam compiler.
@@ -78,6 +77,10 @@ my %num_specific;
 my %gen_to_spec;
 my %specific_op;
 
+# Information about each specific operator. Key is the print name (e.g. get_list_xxy).
+# Value is a hash.
+my %spec_op_info;
+
 my %gen_arity;
 my @gen_arity;
 
@@ -243,6 +246,7 @@ while (@ARGV && $ARGV[0] =~ /^-(.*)/) {
     ($target = \&compiler_output), next if /^compiler/;
     ($outdir = shift), next if /^outdir/;
     ($wordsize = shift), next if /^wordsize/;
+    ($code_model = shift), next if /^code-model/;
     ($verbose = 1), next if /^v/;
     ($defs{$1} = $2), next if /^D(\w+)=(\w+)/;
     die "$0: Bad option: -$_\n";
@@ -254,14 +258,31 @@ if ($wordsize == 32) {
 } elsif ($wordsize == 64) {
     $defs{'ARCH_32'} = 0;
     $defs{'ARCH_64'} = 1;
+    $code_pointers_are_short = $code_model eq 'small';
 }
 
 #
-# Initialize number of arguments per packed word.
+# Initialize pack options.
 #
 
 if ($wordsize == 64) {
-    $pack_mask[3] = ['BEAM_TIGHT_MASK', 'BEAM_TIGHT_MASK', $WHOLE_WORD];
+    @basic_pack_options = (0,PACK_JUMP);
+    @extended_pack_options = @basic_pack_options;
+    if ($code_pointers_are_short) {
+        foreach (@basic_pack_options) {
+            push @extended_pack_options, $_ | PACK_IN_INSTR_WORD;
+        }
+    }
+}
+
+#
+# Add placeholders for built-in macros.
+#
+
+$c_code{'IS_PACKED'} = ['$Expr',"built-in macro",('Expr')];
+$c_code{'ARG_POSITION'} = ['$Expr',"built-in macro",('Expr')];
+foreach my $name (keys %c_code) {
+    $c_code_used{$name} = 1;
 }
 
 #
@@ -344,13 +365,16 @@ while (<>) {
     }
 
     #
-    # Handle %hot/%cold.
+    # Handle %hot, %warm, and %cold.
     # 
     if (/^\%hot/) {
-	$hot = 1;
+	$hotness = HOT;
 	next;
+    } elsif (/^\%warm/) {
+	$hotness = WARM;
+        next;
     } elsif (/^\%cold/) {
-	$hot = 0;
+	$hotness = COLD;
 	next;
     }
 
@@ -430,15 +454,7 @@ while (<>) {
     # Parse specific instructions (only present in emulator/loader):
     #    Name Arg1 Arg2...
     #
-    my($name, @args) = split;
-    error("too many operands")
-	if @args > $max_spec_operands;
-    syntax_check($name, @args);
-    my $arity = @args;
-    if (defined $gen_opnum{$name,$arity} and $obsolete[$gen_opnum{$name,$arity}]) {
-	error("specific instructions may not be specified for obsolete instructions");
-    }
-    save_specific_ops($name, $arity, $hot, @args);
+    my($name,$arity) = parse_specific_op($_);
     if (defined $op_num) {
 	error("specific instructions must not be numbered");
     } elsif (!defined($gen_arity{$name}) && !defined($unnumbered{$name,$arity})) {
@@ -506,6 +522,36 @@ sub emulator_output {
     my $key;			# Loop variable.
 
     #
+    # Generate code and meta information for all instructions.
+    #
+    foreach $key (keys %specific_op) {
+	foreach (@{$specific_op{$key}}) {
+	    my($name, $hotness, @args) = @$_;
+	    my $print_name = print_name($name, @args);
+
+	    my($size, $code, $pack_spec) = cg_basic(name => $name, args => \@args);
+	    if (defined $code) {
+                $code = "OpCase($print_name):\n$code";
+                push @generated_code, [$hotness,$code,($print_name)];
+	    }
+
+            # Note: Some of the information below will be modified
+            # for combined instructions.
+            my %info = ('size' => $size,
+                        'pack_spec' => $pack_spec,
+                        'adj' => 0,
+                        'args' => \@args);
+            $spec_op_info{$print_name} = \%info;
+	}
+    }
+
+    #
+    # Combine micro instruction into instruction blocks and generate
+    # code for them.
+    #
+    combine_micro_instructions();
+
+    #
     # Information about opcodes (beam_opcodes.c).
     #
     $name = "$outdir/beam_opcodes.c";
@@ -534,14 +580,9 @@ sub emulator_output {
     print "\n";
 
     #
-    # Combine micro instruction into instruction blocks.
-    #
-    combine_micro_instructions();
-
-    #
     # Generate code for specific ops.
     #
-    my($spec_opnum) = 0;
+    my $spec_opnum = 0;
     print "const OpEntry opc[] = {\n";
     foreach $key (sort keys %specific_op) {
 	$gen_to_spec{$key} = $spec_opnum;
@@ -556,38 +597,26 @@ sub emulator_output {
 	foreach (@{$specific_op{$key}}) {
 	    my($name, $hot, @args) = @{$_};
 	    my($sign) = join('', @args);
+            $sign =~ s/[?]//g;
 
 	    # The primitive types should sort before other types.
 
-	    my($sort_key) = $sign;
+	    my $sort_key = $sign;
 	    eval "\$sort_key =~ tr/$genop_types/./";
 	    $sort_key .= ":$sign";
-	    $items{$sort_key} = [$name, $hot, $sign, @args];
+            my $print_name = print_name($name, @args);
+	    $items{$sort_key} = $print_name;
 	}
 
 	#
 	# Now call the generator for the sorted result.
 	#
-	foreach (sort keys %items) {
-	    my($name, $hot, $sign, @args) = @{$items{$_}};
+	foreach my $sort_key (sort keys %items) {
+            my $print_name = $items{$sort_key};
+            my $info = $spec_op_info{$print_name};
+            my(@args) = @{$info->{'args'}};
+            @args = map { s/[?]$//; $_ } @args;
 	    my $arity = @args;
-	    my($instr) = "${name}_$sign";
-	    $instr =~ s/_$//;
-
-	    #
-	    # Call a generator to calculate size and generate macros
-	    # for the emulator.
-	    #
-	    my($size, $code, $pack) =
-                basic_generator($name, 1, '', 0, undef, @args);
-
-	    #
-	    # Save the generated $code for later.
-	    #
-	    if (defined $code) {
-                $code = "OpCase($instr):\n$code";
-                push @generated_code, [$hot,$code,($instr)];
-	    }
 
 	    #
 	    # Calculate the bit mask which should be used to match this
@@ -609,7 +638,6 @@ sub emulator_output {
 	    }
 
 	    printf "/* %3d */  ", $spec_opnum;
-	    my $print_name = $sign ne '' ? "${name}_$sign" : $name;
 	    my $init = "{";
 	    my $sep = "";
 	    foreach (@bits) {
@@ -617,8 +645,12 @@ sub emulator_output {
 		$sep = ",";
 	    }
 	    $init .= "}";
-	    init_item($print_name, $init, $involves_r, $size, $pack, $sign);
-	    $op_to_name[$spec_opnum] = $instr;
+            my $adj = $info->{'adj'};
+            my $size = $info->{'size'};
+            my $pack_spec = $info->{'pack_spec'};
+            my $sign = join '', @args;
+	    init_item($print_name, $init, $involves_r, $size, $adj, $pack_spec, $sign);
+	    $op_to_name[$spec_opnum] = $print_name;
 	    $spec_opnum++;
 	}
     }
@@ -697,12 +729,19 @@ sub emulator_output {
 	print "#if !defined(ARCH_64)\n";
 	print qq[  #error "64-bit architecture assumed, but ARCH_64 not defined"\n];
 	print "#endif\n";
-	print "#define BEAM_WIDE_MASK 0xFFFFFFFFUL\n";
-	print "#define BEAM_LOOSE_MASK 0xFFFFUL\n";
-	print "#define BEAM_TIGHT_MASK 0xFFFFUL\n";
+        if ($code_pointers_are_short) {
+            print "#if !defined(CODE_MODEL_SMALL)\n";
+            print qq[  #error "small code model assumed, but CODE_MODEL_SMALL not defined"\n];
+            print "#endif\n";
+        }
+	print "#define BEAM_WIDE_MASK 0xFFFFFFFFull\n";
+	print "#define BEAM_LOOSE_MASK 0xFFFFull\n";
+	print "#define BEAM_TIGHT_MASK 0xFFFFull\n";
+	print "#define BEAM_TIGHTEST_MASK 0x3FFull\n";
 	print "#define BEAM_WIDE_SHIFT 32\n";
 	print "#define BEAM_LOOSE_SHIFT 16\n";
 	print "#define BEAM_TIGHT_SHIFT 16\n";
+	print "#define BEAM_TIGHTEST_SHIFT 10\n";
     }
     print "\n";
 
@@ -801,12 +840,24 @@ sub emulator_output {
     $name = "$outdir/beam_hot.h";
     open(STDOUT, ">$name") || die "Failed to open $name for writing: $!\n";
     comment('C');
-    print_code(1);
+    print_code(HOT);
+
+    $name = "$outdir/beam_warm.h";
+    open(STDOUT, ">$name") || die "Failed to open $name for writing: $!\n";
+    comment('C');
+    print_code(WARM);
 
     $name = "$outdir/beam_cold.h";
     open(STDOUT, ">$name") || die "Failed to open $name for writing: $!\n";
     comment('C');
-    print_code(0);
+    print_code(COLD);
+}
+
+sub print_name {
+    my($name,@args) = @_;
+    my $sign = join '', @args;
+    $sign =~ s/[?]//g;
+    $sign ne '' ? "${name}_$sign" : $name;
 }
 
 sub init_item {
@@ -925,40 +976,54 @@ sub compiler_output {
 }
 
 #
-# Check an operation for validity.
+# Parse and store a specific operation.
 #
-sub syntax_check {
-    my($name, @args) = @_;
-    my($i);
+sub parse_specific_op {
+    my($name, @args) = split " ", shift;
+    my $arity = @args;
 
+    # Check for various errors.
     error("Bad opcode name '$name'")
 	unless $name =~ /^[a-z][\w\d_]*$/;
-    for ($i = 0; $i < @args; $i++) {
-        foreach my $type (split(//, $args[$i])) {
+    error("too many operands")
+	if @args > $max_spec_operands;
+    for (my $i = 0; $i < $arity; $i++) {
+        my $arg = $args[$i];
+        $arg =~ s/[?]$//;
+        foreach my $type (split(//, $arg)) {
             error("Argument " . ($i+1) . ": invalid type '$type'")
                 unless defined $arg_size{$type};
         }
     }
-}
-
-sub save_specific_ops {
-    my($name,$arity,$hot,@args) = @_;
-    my(@res) = ("");
+    if (defined $gen_opnum{$name,$arity} and $obsolete[$gen_opnum{$name,$arity}]) {
+	error("specific instructions may not be specified for obsolete instructions");
+    }
 
+    # Expand operands with multiple types to multiple instructions.
+    # (For example, "get_list xy xy xy" will be expanded to six instructions.)
+    my @res = ([]);
     foreach my $arg (@args) {
-        my @new_res = ();
+        my @old_res = @res;
+        @res = ();
+        my $marker = ($arg =~ s/[?]$//) ? '?' : '';
         foreach my $type (split(//, $arg)) {
-            foreach my $args (@res) {
-                push @new_res, "$args$type";
+            foreach my $args_ref (@old_res) {
+                my @args = @$args_ref;
+                push @args, "$type$marker";
+                push @res, \@args;
             }
         }
-        @res = @new_res;
     }
+
+    # Store each specific instruction.
     my $key = "$name/$arity";
-    foreach my $args (@res) {
-        @args = split //, $args;
-        push @{$specific_op{$key}}, [$name,$hot,@args];
+    foreach my $args_ref (@res) {
+        @args = @$args_ref;
+        push @{$specific_op{$key}}, [$name,$hotness,@args];
     }
+
+    # Done.
+    ($name,$arity);
 }
 
 sub parse_c_args {
@@ -1039,14 +1104,16 @@ sub combine_micro_instructions {
 
     # Now generate code for each group.
     foreach my $group (sort keys %groups) {
-        my($code,@labels) = combine_instruction_group($group, @{$groups{$group}});
-        push @generated_code, [1,$code,@labels];
+        my($hotness,$code,@labels) =
+            combine_instruction_group($group, @{$groups{$group}});
+        push @generated_code, [$hotness,$code,@labels];
     }
 }
 
 sub combine_instruction_group {
     my($group,@in_instrs) = @_;
     my $gcode = '';             # Code for the entire group.
+    my $group_hotness = COLD;
 
     # Get code for the head of the group (if any).
     my $head_name = "$group.head";
@@ -1062,8 +1129,27 @@ sub combine_instruction_group {
     # Variables.
     my %offsets;
     my @instrs;
-    my %num_references;
-    my $group_size = 0;
+    my %num_references;         # Number of references from other sub instructions.
+    my $group_size = 999;
+
+    #
+    # Calculate the number of references from other sub instructions.
+    # This number is useful in several ways:
+    #
+    # * If this number is 0, it is only used as the entry point for a
+    #   function, implying that it does not need a label and that operands
+    #   can be packed into the instruction word.
+    #
+    # * We'll use this number in the sort key, as a tie breaker for sub instructions
+    #   at the same instruction offset.
+    #
+    foreach my $ref_instr (@in_instrs) {
+        my(undef,undef,$first_sub,@other_subs) = @$ref_instr;
+        $num_references{$first_sub} += 0; # Make sure it is defined.
+        foreach my $sub (@other_subs) {
+            $num_references{$sub}++;
+        }
+    }
 
     # Do basic error checking. Associate operands of instructions
     # with the correct micro instructions. Calculate offsets for micro
@@ -1075,12 +1161,14 @@ sub combine_instruction_group {
         error("no $specific_key instruction")
             unless defined $specific_op_ref;
         foreach my $specific_op (@$specific_op_ref) {
-            my($name, $hot, @args) = @{$specific_op};
+            my($name, $hotness, @args) = @{$specific_op};
+            $group_hotness = $hotness unless $group_hotness >= $hotness;
             my $offset = 0;
             my @rest = @args;
             my @new_subs;
-            my $opcase = $specific;
-            $opcase .= "_" . join '', @args if @args;
+            my $print_name = print_name($specific, @args);
+            my $opcase = $print_name;
+            my $last = $subs[$#subs];
             foreach my $s (@subs) {
                 my $code = $c_code{$s};
                 my(undef,undef,@c_args) = @{$code};
@@ -1088,16 +1176,18 @@ sub combine_instruction_group {
                 foreach (0..$#c_args) {
                     push @first, shift @rest;
                 }
-                my($size,undef) = basic_generator($s, 0, '', 0, undef, @first);
+                my $size = cg_combined_size(name => $s,
+                                            first => $num_references{$s} == 0,
+                                            args => \@first);
                 $offsets{$s} = $offset
-                    unless defined $offsets{$s} and $offsets{$s} >= $offset;
+                    unless defined $offsets{$s} and $offsets{$s} < $offset;
                 $offset += $size - 1;
                 my $label = micro_label($s);
-                $num_references{$label} = 0;
                 push @new_subs, [$opcase,$label,$s,$size-1,@first];
                 $opcase = '';
             }
-            $group_size = $offset if $group_size < $offset;
+            $spec_op_info{$print_name}->{'size'} = $offset + 1;
+            $group_size = $offset if $group_size >= $offset;
             push @instrs, [$specific_key,@new_subs];
         }
     }
@@ -1111,9 +1201,8 @@ sub combine_instruction_group {
             my($opcase,$label,$s,$size,@args) = @{$subs[$i]};
             my $next = '';
             (undef,$next) = @{$subs[$i+1]} if $i < $#subs;
-            $num_references{$next}++ if $next;
             my $instr_info = "$opcase:$label:$next:$s:$size:@args";
-            push @all_instrs, [$label,$offsets{$s},$instr_info];
+            push @all_instrs, [$label,$s,$offsets{$s},$instr_info];
         }
     }
 
@@ -1121,8 +1210,8 @@ sub combine_instruction_group {
     my %label_to_offset;
     my %order_to_offset;
     foreach my $instr (@all_instrs) {
-        my($label,$offset,$instr_info) = @$instr;
-        my $sort_key = sprintf("%02d.%02d", $offset, $num_references{$label});
+        my($label,$s,$offset,$instr_info) = @$instr;
+        my $sort_key = sprintf("%02d.%02d", $offset, $num_references{$s});
         push @{$order_to_instrs{$sort_key}}, $instr_info;
         $label_to_offset{$label} = $offset;
         $order_to_offset{$sort_key} = $offset;
@@ -1133,6 +1222,8 @@ sub combine_instruction_group {
     # Now generate the code for the entire group.
     my $offset = 0;
     my @opcase_labels;
+    my %down;
+    my %up;
     for(my $i = 0; $i < @slots; $i++) {
         my $key = $slots[$i];
 
@@ -1153,36 +1244,70 @@ sub combine_instruction_group {
             my $seen_key = "$label:$next:" . scalar(@first);
             next if $opcase eq '' and $seen{$seen_key};
             $seen{$seen_key} = 1;
+            $seen_key .= $opcase;
 
             if ($opcase ne '') {
                 $gcode .= "OpCase($opcase):\n";
                 push @opcase_labels, $opcase;
             }
-            if ($num_references{$label}) {
+            if ($num_references{$s}) {
                 $gcode .= "$label:\n";
             }
 
             my $flags = '';
             my $transfer_to_next = '';
-            my $dec = 0;
+            my $inc = 0;
 
             unless ($i == $#slots) {
                 $flags = "-no_next";
                 my $next_offset = $label_to_offset{$next};
-                $dec = $next_offset - ($offset + $size);
-                $transfer_to_next = "I -= $dec;\n" if $dec;
+                $inc = ($offset + $size) - $next_offset;
+                $transfer_to_next = "I += $inc;\n" if $inc;
                 $transfer_to_next .= "goto $next;\n\n";
             }
 
-            my(undef,$gen_code) =
-                basic_generator($s, 0, $flags, $offset,
-                                $group_size-$offset-$dec, @first);
+            my($gen_code,$down,$up) =
+                cg_combined_code(name => $s,
+                                 first => $num_references{$s} == 0,
+                                 extra_comments => $flags,
+                                 offset => $offset,
+                                 comp_size => $group_size-$offset,
+                                 inc => $inc,
+                                 args =>\@first);
+            my $spec_label = "$opcase$label";
+            $down{$spec_label} = $down;
+            $up{$spec_label} = $up;
             $gcode .= $gen_code . $transfer_to_next;
         }
         $offset = $order_to_offset{$slots[$i+1]} if $i < $#slots;
     }
 
-    ("{\n$gcode\n}\n\n",@opcase_labels);
+    foreach my $print_name (@opcase_labels) {
+        my $info = $spec_op_info{$print_name};
+        $info->{'adj'} = $info->{'size'} - $group_size - 1;
+    }
+
+    #
+    # Assemble pack specifications for all instructions in the group.
+    #
+    foreach my $instr (@instrs) {
+        my(undef,@subs) = @{$instr};
+        my $down = '';
+        my $up = '';
+        for (my $i = 0; $i < @subs; $i++) {
+            my($opcase,$label) = @{$subs[$i]};
+            my $spec_label = "$opcase$label";
+            if (defined $down{$spec_label}) {
+                $down = $down{$spec_label} . $down;
+                $up = $up . $up{$spec_label};
+            }
+        }
+        my $print_name = $subs[0]->[0];
+        my $info = $spec_op_info{$print_name};
+        $info->{'pack_spec'} = build_pack_spec("$down:$up");
+    }
+
+    ($group_hotness,"{\n$gcode\n}\n\n",@opcase_labels);
 }
 
 sub micro_label {
@@ -1193,12 +1318,56 @@ sub micro_label {
 
 
 #
-# Basic implementation of instruction in emulator loop
-# (assuming no packing).
+# Basic code generation for one instruction.
 #
 
-sub basic_generator {
-    my($name,$hot,$extra_comments,$offset,$group_size,@args) = @_;
+sub cg_basic {
+    my %params = (@_, pack_options => \@extended_pack_options);
+    my($size,$code,$pack_spec) = code_gen(%params);
+    $pack_spec = build_pack_spec($pack_spec);
+    ($size,$code,$pack_spec);
+}
+
+#
+# Calculate size for a micro instruction.
+#
+
+sub cg_combined_size {
+    my %params = (@_, pack_options => \@basic_pack_options);
+    $params{pack_options} = \@extended_pack_options
+        if $params{first};
+    my($size) = code_gen(%params);
+    $size;
+}
+
+#
+# Generate code for a micro instruction.
+#
+
+sub cg_combined_code {
+    my %params = (@_, pack_options => \@basic_pack_options);
+    $params{pack_options} = \@extended_pack_options
+        if $params{first};
+    my($size,$code,$pack_spec) = code_gen(%params);
+    if ($pack_spec eq '') {
+        ($code,'','');
+    } else {
+        my($down,$up) = split /:/, $pack_spec;
+        ($code,$down,$up);
+    }
+}
+
+sub code_gen {
+    my %params = (extra_comments => '',
+                  offset => 0,
+                  inc => 0,
+                  @_);
+    my $name = $params{name};
+    my $extra_comments = $params{extra_comments};
+    my $offset = $params{offset};
+    my $inc = $params{inc};
+    my @args = @{$params{args}};
+
     my $size = 0;
     my $flags = '';
     my @f;
@@ -1212,8 +1381,9 @@ sub basic_generator {
     #
 
     my $c_code_ref = $c_code{$name};
-    if ($hot and defined $c_code_ref) {
-        ($var_decls, $pack_spec, @args) = do_pack(@args);
+    if (defined $c_code_ref and $name ne 'catch') {
+        my $pack_options = $params{pack_options};
+        ($var_decls, $pack_spec, @args) = do_pack($name, $offset, $pack_options, @args);
     }
 
     #
@@ -1223,6 +1393,7 @@ sub basic_generator {
 
     my $need_block = 0;
     my $arg_offset = $offset;
+    @args = map { s/[?]$//g; $_ } @args;
     foreach (@args) {
 	my($this_size) = $arg_size{$_};
       SWITCH:
@@ -1285,7 +1456,7 @@ sub basic_generator {
         return ($size+1, undef, '');
     }
 
-    $group_size = $size unless defined $group_size;
+    my $group_size = ($params{comp_size} || $size) + $inc;
 
     #
     # Generate main body of the implementation.
@@ -1304,6 +1475,7 @@ sub basic_generator {
         $bindings{$var} = $f[$i];
     }
     $bindings{'NEXT_INSTRUCTION'} = "I+" . ($group_size+$offset+1);
+    $bindings{'IP_ADJUSTMENT'} = $inc;
     $c_code = eval { expand_all($c_code, \%bindings) };
     unless (defined $c_code) {
         warn $@;
@@ -1326,11 +1498,10 @@ sub basic_generator {
             "ASSERT(VALID_INSTR(*I));\n" .
             "Goto(*I);";
     } else {
-        $var_decls .= "BeamInstr* _nextpf = " .
-            "(BeamInstr *) I[$instr_offset];\n";
+        $var_decls .= "BeamInstr next_pf = BeamCodeAddr(I[$instr_offset]);\n";
         $dispatch_next = "\nI += $instr_offset;\n" .
-            "ASSERT(VALID_INSTR(_nextpf));\n" .
-            "Goto(_nextpf);";
+            "ASSERT(VALID_INSTR(next_pf));\n" .
+            "GotoPF(next_pf);";
     }
 
     #
@@ -1368,14 +1539,8 @@ sub expand_all {
         my $keep = substr($code, 0, $-[0]);
         my $after = substr($code, $+[0]);
 
-        # Keep the special, pre-defined bindings.
-        my %new_bindings;
-        foreach my $key (qw(NEXT_INSTRUCTION)) {
-            $new_bindings{$key} = $bindings{$key};
-        }
-
         my $body;
-        ($body,$code) = expand_macro($macro_name, $after, \%new_bindings);
+        ($body,$code) = expand_macro($macro_name, $after, \%bindings);
         $res .= "$keep$body";
     }
 
@@ -1422,28 +1587,124 @@ sub expand_macro {
         $arg =~ s/^\s*//;
     }
 
-    # Now combine bindings from the parameter names and arguments.
-    my %bindings = %{$bindings_ref};
+    # Make sure that the number of arguments are correct.
     if (@vars != @args) {
         error("calling $name with ", scalar(@args),
               " arguments instead of expected ", scalar(@vars), " arguments...");
     }
+
+    # Now combine bindings from the parameter names and arguments.
+    my %bindings = %{$bindings_ref};
+    my %new_bindings;
+
+    # Keep the special, pre-defined bindings.
+    foreach my $key (qw(NEXT_INSTRUCTION IP_ADJUSTMENT)) {
+        $new_bindings{$key} = $bindings{$key};
+    }
+
     for (my $i = 0; $i < @vars; $i++) {
-        $bindings{$vars[$i]} = $args[$i];
+        my $arg = $args[$i];
+        $arg = eval { expand_all($arg, \%bindings) };
+        unless (defined $arg) {
+            warn $@;
+            die "... from the body of $name at $where\n";
+        }
+        $new_bindings{$vars[$i]} = $arg;
     }
 
-    $body = eval { expand_all($body, \%bindings) };
+    $body = eval { expand_all($body, \%new_bindings) };
     unless (defined $body) {
         warn $@;
         die "... from the body of $name at $where\n";
     }
-    ("do {\n$body\n} while (0)",$rest);
+
+    # Handle built-in macros.
+    if ($name eq 'ARG_POSITION') {
+        if ($body =~ /^I\[(\d+)\]$/) {
+            $body = $1;
+        } else {
+            $body = 0;
+        }
+    } elsif ($name eq 'IS_PACKED') {
+        $body = ($body =~ /^I\[\d+\]$/) ? 0 : 1;
+    }
+
+    # Wrap body if needed and return resul.t
+    $body = "do {\n$body\n} while (0)"
+        if needs_do_wrapper($body);
+    ($body,$rest);
+}
+
+# Conservative heuristic to determine whether a do { ... } while(0)
+# wrapper is needed.
+sub needs_do_wrapper {
+    local $_ = shift;
+
+    s@^//[|][^\n]*\n@@;
+    s@^\s*@@s;
+    s@^/[*].*[*]/\s*@@s;
+    return 1 if /^(Eterm|Uint|Sint|int|unsigned)/; # Definitely needed.
+    return 0 if /^do/;
+    return 0 if /^SET_I/;
+    return 0 if /^SET_CP/;
+    return 0 if /^ERTS_NO_FPE_CHECK_INIT/;
+    return 0 if /^ASSERT/;
+    return 0 if /^DTRACE/;
+    return 0 if /^[A-Za-z_]*\s*=/;
+    return 0 if /^c_p->/;
+    return 0 if /^[A-Z_]*SWAPOUT/;
+    return 0 if /^if\s*[(]/;
+    return 0 if /^goto\b/;
+    return 0 if /^\d+/;
+    return 1;                   # Not sure, say that it is needed.
 }
 
 sub do_pack {
-    my(@args) = @_;
+    my($name,$offset,$pack_opts_ref,@args) = @_;
+    my @pack_opts = @$pack_opts_ref;
+    my $opt_arg_pos = -1;
+
+    # Look for an optional use operand not as the first argument.
+    if (@args and $args[0] !~ /[?]$/) {
+        for (my $pos = 0; $pos < @args; $pos++) {
+            if ($args[$pos] =~ /[?]$/) {
+                $opt_arg_pos = $pos;
+                last;
+            }
+        }
+    }
+
+    @args = map { s/[?]$//; $_ } @args; # Remove any optional use marker.
+
+    # If there is an optional operand, extend the array of pack options.
+    if ($opt_arg_pos >= 0) {
+        my @new_pack_opts = grep { $_ & PACK_IN_INSTR_WORD } @pack_opts;
+        @new_pack_opts = map {
+            ($_ & ~ PACK_IN_INSTR_WORD) | PACK_OPT_IN_INSTR_WORD;
+        } @new_pack_opts;
+        push @pack_opts, @new_pack_opts;
+    }
+
+    my $ret = ['', ':', @args];
+    my $score = 0;
+
+    foreach my $options (@pack_opts) {
+        my $this_opt_arg_pos = ($options & PACK_OPT_IN_INSTR_WORD) ? $opt_arg_pos : -1;
+        my($this_score,$this_result) =
+            do_pack_one($name, $options, $this_opt_arg_pos, $offset, @args);
+        if ($this_score > $score) {
+            $ret = $this_result;
+            $score = $this_score;
+        }
+    }
+    return @$ret;
+}
+
+sub do_pack_one {
+    my($name,$options,$opt_arg_pos,$offset,@args) = @_;
     my($packable_args) = 0;
     my @bits_needed;            # Bits needed for each argument.
+    my $pack_in_iw = $options & PACK_IN_INSTR_WORD;
 
     #
     # Define the minimum number of bits needed for the packable argument types.
@@ -1457,6 +1718,10 @@ sub do_pack {
                        't' => 16);
     if ($wordsize == 64) {
         $bits_needed{'I'} = 32;
+        if ($options & PACK_JUMP) {
+            $bits_needed{'f'} = 32;
+            $bits_needed{'j'} = 32;
+        }
     }
 
     #
@@ -1469,34 +1734,48 @@ sub do_pack {
 	} else {
 	    push @bits_needed, 0;
 	}
+        if ($arg =~ /^[fj]$/) {
+            # Only pack the first occurrence of 'f' or 'j'.
+            delete $bits_needed{'f'};
+            delete $bits_needed{'j'};
+        }
     }
 
     #
-    # Nothing to pack unless there are at least 2 packable arguments.
+    # Return if there is nothing to pack.
     #
-    return ('', '', @args) if $packable_args < 2;
+    if ($packable_args == 0) {
+        return (-1);
+    } elsif ($packable_args == 1 and $options == 0) {
+        return (-1);
+    }
 
     #
     # Determine how many arguments we should pack into each word.
     #
     my @args_per_word;
     my @need_wide_mask;
-    my $bits = 0;
-    my $word = 0;
-    $args_per_word[0] = 0;
-    $need_wide_mask[0] = 0;
-    for (my $i = 0; $i < @args; $i++) {
-        if ($bits_needed[$i]) {
-            my $needed = $bits_needed[$i];
-
-            my $next_word = sub {
-                $word++;
-                $args_per_word[$word] = 0;
-                $need_wide_mask[$word] = 0;
-                $bits = 0;
-            };
+    my $bits;
+    my $this_wordsize;
+    my $word = -1;
+
+    my $next_word = sub {
+        $word++;
+        $args_per_word[$word] = 0;
+        $need_wide_mask[$word] = 0;
+        $bits = 0;
+        $this_wordsize = $wordsize;
+    };
 
-            if ($bits+$needed > $wordsize) { # Does not fit.
+    $next_word->();
+    $this_wordsize = 32 if $pack_in_iw;
+    for (my $arg_num = 0; $arg_num < @args; $arg_num++) {
+            my $needed = $bits_needed[$arg_num];
+
+            next unless $needed;
+            next if $arg_num == $opt_arg_pos;
+
+            if ($bits+$needed > $this_wordsize) { # Does not fit.
                 $next_word->();
             }
             if ($args_per_word[$word] == 4) { # Can't handle more than 4 args.
@@ -1516,15 +1795,16 @@ sub do_pack {
                 # Can only pack two things in a word where one
                 # item is 32 bits. Force the next item into
                 # the next word.
-                $bits = $wordsize;
+                $bits = $this_wordsize;
             }
-        }
     }
 
     #
     # Try to balance packing between words.
     #
-    if ($args_per_word[$#args_per_word] == 1) {
+    if (@args_per_word == 1 and $args_per_word[0] == 1 and $pack_in_iw) {
+        # Don't rebalance.
+    } elsif ($args_per_word[$#args_per_word] == 1) {
         if ($args_per_word[$#args_per_word-1] < 3) {
             pop @args_per_word;
         } else {
@@ -1549,21 +1829,30 @@ sub do_pack {
 				# beginning).
     my $up = '';		# Pack commands (storing back while
 				# moving forward).
-    my $did_some_packing = 0;   # Nothing packed yet.
+    my $arg_num = 0;            # Number of argument.
 
-    # Skip an unpackable argument.
+    # Skip an unpackable argument. Also handle packing of
+    # an single operand into the instruction word.
     my $skip_unpackable = sub {
         my($arg) = @_;
 
-        if ($arg_size{$arg} and $did_some_packing) {
+        if ($arg_num == $opt_arg_pos) {
+            my $pack = chr(ord('#') + $arg_num);
+            $down = PACK_CMD_WIDE . "$pack$down";
+            my $unpack = "BeamExtraData(I[0])";
+            $args[$arg_num] = "packed:$arg:0:${arg}b($unpack)";
+        } elsif ($arg_size{$arg}) {
             # Save the argument on the pack engine's stack.
-            $down = "g${down}";
+            my $push = 'g';
+            if ($type_bit{$arg} & $type_bit{'q'}) {
+                # The operand may be a literal.
+                $push = 'q';
+            } elsif ($type_bit{$arg} & $type_bit{'f'}) {
+                # The operand may be a failure label.
+                $push = 'f';
+            }
+            $down = "$push${down}";
             $up = "${up}p";
-        } else {
-            # The argument has either zero size (e.g. r(0)),
-            # or is to the left of the first packed argument
-            # and will never be accessed. No need to do
-            # anything.
         }
     };
 
@@ -1572,44 +1861,50 @@ sub do_pack {
     # the packing engine works from right-to-left, but we must generate
     # the instructions from left-to-right because we must calculate
     # instruction sizes from left-to-right.
-
-    my $arg_num = 0;
     for (my $word = 0; $word < @args_per_word; $word++) {
         my $ap = 0;              # Argument number within word.
         my $packed_var = "tmp_packed" . ($word+1);
         my $args_per_word = $args_per_word[$word];
-        my @shift;
-        my @mask;
-        my @instr;
-
-        if ($need_wide_mask[$word]) {
-            @shift = ('0', 'BEAM_WIDE_SHIFT');
-            @mask = ('BEAM_WIDE_MASK', $WHOLE_WORD);
-            @instr = ('w', 'i');
-        } else {
-            @shift = @{$pack_shift[$args_per_word]};
-            @mask = @{$pack_mask[$args_per_word]};
-            @instr = @{$pack_instr[$args_per_word]};
-        }
+        my $pack_word_size = ($pack_in_iw && $word == 0) ? 32 : $wordsize;
+
+        my($shref,$mref,$iref,$unpack_suffix)  =
+            get_pack_parameters($name, $args_per_word, $pack_word_size,
+                                $need_wide_mask[$word]);
+        my @shift = @$shref;
+        my @mask = @$mref;
+        my @instr = @$iref;
 
         while ($ap < $args_per_word) {
             my $reg = $args[$arg_num];
             my $this_size = $arg_size{$reg};
+
             if ($bits_needed[$arg_num]) {
                 $this_size = 0;
-                $did_some_packing = 1;
 
                 if ($ap == 0) {
-                    $pack_prefix .= "Eterm $packed_var = " .
-                        arg_offset($size) . ";\n";
-                    $up .= "p";
-                    $down = "P$down";
-                    $this_size = 1;
+                    my $packed_data;
+                    if ($pack_in_iw and $word == 0) {
+                        $packed_data = "BeamExtraData(I[0])";
+                        if ($args_per_word == 1) {
+                            $packed_var = $packed_data;
+                        } else {
+                            $pack_prefix .= "Eterm $packed_var = $packed_data;\n";
+                        }
+                        my $pack = chr(ord('#') + $size);
+                        $down = "$pack$down";
+                    } else {
+                        $packed_data = arg_offset($size + $offset);
+                        $pack_prefix .= "Eterm $packed_var = $packed_data;\n";
+                        $down = "P$down";
+                        $up .= "p";
+                        $this_size = 1;
+                    }
                 }
 
                 $down = "$instr[$ap]$down";
                 my $unpack = make_unpack($packed_var, $shift[$ap], $mask[$ap]);
-                $args[$arg_num] = "packed:$reg:$this_size:$reg" . "b($unpack)";
+                my $macro = "$reg$unpack_suffix";
+                $args[$arg_num] = "packed:$reg:$this_size:$macro($unpack)";
 
                 $ap++;
             } else {
@@ -1624,12 +1919,107 @@ sub do_pack {
     # Skip any unpackable arguments at the end.
     #
     while ($arg_num < @args) {
-        $skip_unpackable->($args[$arg_num]);
+        my $arg = $args[$arg_num];
+        $skip_unpackable->($arg);
+        $size += $arg_size{$arg};
         $arg_num++;
     }
 
-    my $pack_spec = $down . $up;
-    return ($pack_prefix, $pack_spec, @args);
+    my $pack_spec = "$down:$up";
+    my $score = pack_score($options, @args);
+
+    return ($score, [$pack_prefix,$pack_spec,@args]);
+}
+
+sub get_pack_parameters {
+    my($name,$args_per_word,$pack_word_size,$wide_mask) = @_;
+    my(@shift,@mask,@instr);
+    my $unpack_suffix = 'b';
+
+    if ($wide_mask and $args_per_word > 1) {
+        @shift = ('0', 'BEAM_WIDE_SHIFT');
+        @mask = ('BEAM_WIDE_MASK', $WHOLE_WORD);
+        @instr = (PACK_CMD_WIDE) x 2;
+    } elsif ($args_per_word == 1) {
+        @shift = ('0');
+        @mask = ($WHOLE_WORD);
+        @instr = (PACK_CMD_WIDE);
+    } elsif ($args_per_word == 2) {
+        if ($pack_word_size != $wordsize) {
+            # 64-bit word size, pack 32 bits into instruction word.
+            @shift = ('0', 'BEAM_TIGHT_SHIFT');
+            @mask  = ('BEAM_TIGHT_MASK', $WHOLE_WORD);
+            @instr = (PACK_CMD_TIGHT) x 2;
+        } else {
+            # 32/64 bit word size
+            @shift = ('0', 'BEAM_LOOSE_SHIFT');
+            @mask  = ('BEAM_LOOSE_MASK', $WHOLE_WORD);
+            @instr = (PACK_CMD_LOOSE) x 2;
+        }
+    } elsif ($args_per_word == 3) {
+        if ($pack_word_size != $wordsize) {
+            # 64-bit word size, pack 3 register numbers into instruction word.
+            @shift = ('0', 'BEAM_TIGHTEST_SHIFT', '(2*BEAM_TIGHTEST_SHIFT)');
+            @mask = ('BEAM_TIGHTEST_MASK', 'BEAM_TIGHTEST_MASK', $WHOLE_WORD);
+            @instr = (PACK_CMD_TIGHTEST) x 3;
+            $unpack_suffix = '';
+        } else {
+            # 32/64 bit word size.
+            @shift = ('0', 'BEAM_TIGHT_SHIFT', '(2*BEAM_TIGHT_SHIFT)');
+            if ($wordsize == 32) {
+                @mask = ('BEAM_TIGHT_MASK') x 3;
+            } elsif ($wordsize == 64) {
+                @mask = ('BEAM_TIGHT_MASK', 'BEAM_TIGHT_MASK', $WHOLE_WORD);
+            }
+            @instr = (PACK_CMD_TIGHT) x 3;
+        }
+    } elsif ($args_per_word == 4) {
+        # 64 bit word size only.
+        @shift = ('0',
+                  'BEAM_LOOSE_SHIFT',
+                  '(2*BEAM_LOOSE_SHIFT)',
+		  '(3*BEAM_LOOSE_SHIFT)');
+        @mask = ('BEAM_LOOSE_MASK', 'BEAM_LOOSE_MASK',
+                 'BEAM_LOOSE_MASK', $WHOLE_WORD);
+        @instr = (PACK_CMD_LOOSE) x 4;
+    }
+
+    unless (@shift) {
+        error("$name: internal packing error: args_per_word=$args_per_word, " .
+              "pack_word_size=$pack_word_size");
+    }
+
+    (\@shift,\@mask,\@instr,$unpack_suffix);
+}
+
+sub pack_score {
+    my($options,@args) = @_;
+    my $size = 0;
+
+    # Calculate the number of words.
+    foreach (@args) {
+        if (/^packed:[^:]*:(\d+)/) {
+            $size += $1;
+        } else {
+            $size += $arg_size{$_}
+        }
+    }
+
+    # Less numbers of words give a higher score; for the same number of
+    # words, using PACK_JUMP or PACK_IN_INSTR_WORD gives a lower score.
+    my $score = 1 + 10*($max_spec_operands - $size);
+    if (($options & PACK_OPT_IN_INSTR_WORD) != 0) {
+        $score += 4;
+    } elsif ($options == PACK_IN_INSTR_WORD) {
+        $score += 0;
+    } elsif ($options == PACK_JUMP) {
+        $score += 1;
+    } elsif ($options == (PACK_JUMP|PACK_IN_INSTR_WORD)) {
+        $score += 2;
+    } elsif ($options == 0) {
+        $score += 3;
+    }
+    $score;
 }
 
 sub make_unpack {
@@ -1641,6 +2031,17 @@ sub make_unpack {
     $e;
 }
 
+sub build_pack_spec {
+    my $pack_spec = shift;
+    return '' if $pack_spec eq '';
+    my($down,$up) = split /:/, $pack_spec;
+    while ($down =~ /[gfq]$/ and $up =~ /^p/) {
+        $down = substr($down, 0, -1);
+        $up = substr($up, 1);
+    }
+    "$down$up";
+}
+
 sub quote {
     local($_) = @_;
     return "'$_'" if $_ eq 'try';
@@ -1681,8 +2082,11 @@ sub parse_transformation {
     #
 
     my @to;
-    if ($to =~ /^(\w+)\((.*?)\)/) {
-	my($name, $arglist) = ($1, $2);
+    if ($to =~ /^(\w+)\((.*?)\)(.*)/) {
+	my($name, $arglist, $garbage) = ($1, $2, $3);
+        if ($garbage =~ /\S/) {
+            error("garbage after call to '$name()'");
+        }
 	@to = (compile_transform_function($name, split(/\s*,\s*/, $arglist)));
     } else {
 	@to = split(/\s*\|\s*/, $to);
diff --git a/erts/emulator/utils/make_tables b/erts/emulator/utils/make_tables
index 47e1528958..094a35ae4b 100755
--- a/erts/emulator/utils/make_tables
+++ b/erts/emulator/utils/make_tables
@@ -59,7 +59,6 @@ my %dirty_bif_tab;
 
 my @bif;
 my @bif_info;
-my $dirty_schedulers = 'no';
 my $dirty_schedulers_test = 'no';
 my $hipe = 'no';
 
@@ -73,10 +72,6 @@ while (@ARGV && $ARGV[0] =~ /^-(\w+)/) {
 	$include = shift;
 	die "No directory for -include argument specified"
 	    unless defined $include;
-    } elsif($opt eq '-ds') {
-	$dirty_schedulers = shift;
-	die "No -ds argument specified"
-	    unless defined $dirty_schedulers;
     } elsif($opt eq '-dst') {
 	$dirty_schedulers_test = shift;
 	die "No -dst argument specified"
@@ -140,21 +135,19 @@ while (<>) {
 	push(@bif_info, [$type, $sched_type, $alias3, $alias]);
     } elsif ($type eq 'dirty-cpu' or $type eq 'dirty-io'
 	     or $type eq 'dirty-cpu-test' or $type eq 'dirty-io-test') {
-	if ($dirty_schedulers eq 'yes') {
-	    my($bif,$other) = (@args);
-	    $bif =~ m@^([a-z_.'0-9]+):(.*)/(\d)$@ or error("invalid BIF");
-	    my($mod,$name,$arity) = ($1,$2,$3);
-	    my $mfa = "$mod:$name/$arity";
-	    if (($type eq 'dirty-cpu')
-		or (($dirty_schedulers_test eq 'yes')
-		    and ($type eq 'dirty-cpu-test'))) {
-		$dirty_bif_tab{$mfa} = 'dirty_cpu';
-	    } elsif (($type eq 'dirty-io')
-		or (($dirty_schedulers_test eq 'yes')
-		    and ($type eq 'dirty-io-test'))) {
-		$dirty_bif_tab{$mfa} = 'dirty_io';
-	    }
-	}
+        my($bif,$other) = (@args);
+        $bif =~ m@^([a-z_.'0-9]+):(.*)/(\d)$@ or error("invalid BIF");
+        my($mod,$name,$arity) = ($1,$2,$3);
+        my $mfa = "$mod:$name/$arity";
+        if (($type eq 'dirty-cpu')
+            or (($dirty_schedulers_test eq 'yes')
+                and ($type eq 'dirty-cpu-test'))) {
+            $dirty_bif_tab{$mfa} = 'dirty_cpu';
+        } elsif (($type eq 'dirty-io')
+                 or (($dirty_schedulers_test eq 'yes')
+                     and ($type eq 'dirty-io-test'))) {
+            $dirty_bif_tab{$mfa} = 'dirty_io';
+        }
     } else {
 	error("invalid line");
     }
diff --git a/erts/emulator/valgrind/suppress.patched.3.6.0 b/erts/emulator/valgrind/suppress.patched.3.6.0
index fcde4a0123..29f2d3d62d 100644
--- a/erts/emulator/valgrind/suppress.patched.3.6.0
+++ b/erts/emulator/valgrind/suppress.patched.3.6.0
@@ -374,3 +374,10 @@ fun:erts_debug_set_internal_state_2
 fun:process_main
 }
 
+{
+Thread specific dlerror buffer. Either bug in libc or valgrind.
+Memcheck:Leak
+...
+fun:_dlerror_run
+...
+}
diff --git a/erts/emulator/valgrind/suppress.standard b/erts/emulator/valgrind/suppress.standard
index bb07c92fc1..99a3ee4048 100644
--- a/erts/emulator/valgrind/suppress.standard
+++ b/erts/emulator/valgrind/suppress.standard
@@ -342,3 +342,11 @@ fun:erts_debug_set_internal_state_2
 fun:process_main
 }
 
+{
+Thread specific dlerror buffer. Either bug in libc or valgrind.
+Memcheck:Leak
+...
+fun:_dlerror_run
+...
+}
+
diff --git a/erts/etc/common/dialyzer.c b/erts/etc/common/dialyzer.c
index 0e74eb065b..b45d5c7ca7 100644
--- a/erts/etc/common/dialyzer.c
+++ b/erts/etc/common/dialyzer.c
@@ -255,7 +255,7 @@ int main(int argc, char** argv)
     }
 
     PUSH("+B");
-    PUSH2("-boot", "start_clean");
+    PUSH2("-boot", "no_dot_erlang");
     PUSH3("-run", "dialyzer", "plain_cl");
     PUSH("-extra");
 
diff --git a/erts/etc/common/erlc.c b/erts/etc/common/erlc.c
index 8cfd98bcc4..aa99c69100 100644
--- a/erts/etc/common/erlc.c
+++ b/erts/etc/common/erlc.c
@@ -234,7 +234,7 @@ int main(int argc, char** argv)
     PUSH("+A0");
     PUSH("-noinput");
     PUSH2("-mode", "minimal");
-    PUSH2("-boot", "start_clean");
+    PUSH2("-boot", "no_dot_erlang");
     PUSH3("-s", "erl_compile", "compile_cmdline");
     PUSH("-extra");
 
diff --git a/erts/etc/common/erlexec.c b/erts/etc/common/erlexec.c
index 55a55b658c..08e326b33b 100644
--- a/erts/etc/common/erlexec.c
+++ b/erts/etc/common/erlexec.c
@@ -31,6 +31,7 @@
 #ifdef __WIN32__
 #  include "erl_version.h"
 #  include "init_file.h"
+#  include <Shlobj.h>
 #endif
 
 #define NO 0
@@ -237,7 +238,7 @@ static int verbose = 0;		/* If non-zero, print some extra information. */
 static int start_detached = 0;	/* If non-zero, the emulator should be
 				 * started detached (in the background).
 				 */
-static int start_smp_emu = 0;   /* Start the smp emulator. */
+static int start_smp_emu = 1;   /* Start the smp emulator. */
 static const char* emu_type = 0; /* Type of emulator (lcnt, valgrind, etc) */
 
 #ifdef __WIN32__
@@ -460,8 +461,6 @@ int main(int argc, char **argv)
      * Construct the path of the executable.
      */
     cpuinfo = erts_cpu_info_create();
-    /* '-smp auto' is default */ 
-    start_smp_emu = 1;
 
 #if defined(__WIN32__) && defined(WIN32_ALWAYS_DEBUG)
     emu_type = "debug";
@@ -812,6 +811,28 @@ int main(int argc, char **argv)
 		      add_Eargs(argv[i+1]);
 		      i++;
 		      break;
+		  case 'I':
+                      if (argv[i][2] == 'O' && (argv[i][3] == 't' || argv[i][3] == 'p')) {
+                          if (argv[i][4] != '\0')
+                              goto the_default;
+                          argv[i][0] = '-';
+                          add_Eargs(argv[i]);
+                          add_Eargs(argv[i+1]);
+                          i++;
+                          break;
+                      }
+                      if (argv[i][2] == 'O' && argv[i][3] == 'P' &&
+                          (argv[i][4] == 't' || argv[i][4] == 'p')) {
+                          if (argv[i][5] != '\0')
+                              goto the_default;
+                          argv[i][0] = '-';
+                          add_Eargs(argv[i]);
+                          add_Eargs(argv[i+1]);
+                          i++;
+                          break;
+                      }
+                      usage(argv[i]);
+                      break;
 		  case 'S':
 		      if (argv[i][2] == 'P') {
 			  if (argv[i][3] != '\0')
@@ -1140,10 +1161,6 @@ usage_aux(void)
 #ifdef __WIN32__
 	  "[-start_erl [datafile]] "
 #endif
-	  "[-smp [auto"
-	  "|enable"
-	  "]"
-	  "] "
 	  "[-make] [-man [manopts] MANPAGE] [-x] [-emu_args] [-start_epmd BOOLEAN] "
 	  "[-args_file FILENAME] [+A THREADS] [+a SIZE] [+B[c|d|i]] [+c [BOOLEAN]] "
 	  "[+C MODE] [+h HEAP_SIZE_OPTION] [+K BOOLEAN] "
@@ -1515,17 +1532,16 @@ static void get_parameters(int argc, char** argv)
 static void
 get_home(void)
 {
-    int len;
-    char tmpstr[MAX_PATH+1];
+    wchar_t *profile;
     char* homedrive;
     char* homepath;
 
     homedrive = get_env("HOMEDRIVE");
     homepath = get_env("HOMEPATH");
     if (!homedrive || !homepath) {
-	if (len = GetWindowsDirectory(tmpstr,MAX_PATH)) {
-	    home = emalloc(len+1);
-	    strcpy(home,tmpstr);
+        if (SHGetKnownFolderPath(&FOLDERID_Profile, 0, NULL, &profile) == S_OK) {
+            home = utf16_to_utf8(profile);
+            /* CoTaskMemFree(profile); */
 	} else
 	    error("HOMEDRIVE or HOMEPATH is not set and GetWindowsDir failed");
     } else {
diff --git a/erts/etc/common/escript.c b/erts/etc/common/escript.c
index 8241675200..d739d21f12 100644
--- a/erts/etc/common/escript.c
+++ b/erts/etc/common/escript.c
@@ -521,7 +521,7 @@ main(int argc, char** argv)
     free_env_val(env);
 
     PUSH("+B");
-    PUSH2("-boot", "start_clean");
+    PUSH2("-boot", "no_dot_erlang");
     PUSH("-noshell");
 
     /*
diff --git a/erts/etc/common/typer.c b/erts/etc/common/typer.c
index b64cbb4a92..f13135d883 100644
--- a/erts/etc/common/typer.c
+++ b/erts/etc/common/typer.c
@@ -177,7 +177,7 @@ main(int argc, char** argv)
     }
 
     PUSH("+B");
-    PUSH2("-boot", "start_clean");
+    PUSH2("-boot", "no_dot_erlang");
     PUSH3("-run", "typer", "start");
     PUSH("-extra");
 
diff --git a/erts/etc/unix/cerl.src b/erts/etc/unix/cerl.src
index 8d5882cf32..9dd8d85abe 100644
--- a/erts/etc/unix/cerl.src
+++ b/erts/etc/unix/cerl.src
@@ -45,6 +45,8 @@
 #   -valgrind   Run emulator compiled for valgrind
 #   -lcnt	Run emulator compiled for lock counting
 #   -icount	Run emulator compiled for instruction counting
+#   -rr         Run emulator under "rr record"
+#               Can be combined with compile targets (like -debug) except valgrind.
 #   -nox        Unset the DISPLAY variable to disable us of X Windows
 #
 # FIXME For GDB you can also set the break point using "-break FUNCTION".
@@ -84,6 +86,8 @@ GDBARGS=
 TYPE=
 debug=
 run_valgrind=no
+run_rr=no
+skip_erlexec=no
 
 # Default rootdir
 ROOTDIR=%SRC_ROOTDIR%
@@ -225,6 +229,13 @@ while [ $# -gt 0 ]; do
 	    cargs="$cargs -valgrind"
 	    TYPE=.valgrind
 	    run_valgrind=yes
+	    skip_erlexec=yes
+	    ;;
+	"-rr")
+	    shift
+	    cargs="$cargs -rr"
+	    run_rr=yes
+	    skip_erlexec=yes
 	    ;;
 	*)
 	    break
@@ -246,7 +257,19 @@ PROGNAME="$PROGNAME$cargs"
 EMU="$EMU$TYPE"
 EMU_NAME=`$EXEC -emu_name_exit $eeargs`
 
-if [ $run_valgrind != yes ]; then
+if [ $skip_erlexec = yes ]; then
+    emu_xargs=`echo $xargs | sed "s|+|-|g"`
+    beam_args=`$EXEC -emu_args_exit ${1+"$@"}`
+
+    # Prepare for some argument passing voodoo:
+    # $beam_args is a list of command line arguments separated by newlines.
+    # Make "$@" represent those arguments verbatim (including spaces and quotes).
+    SAVE_IFS="$IFS"
+    IFS='
+'
+    set -- $beam_args
+    IFS="$SAVE_IFS"
+else
     xargs="$xargs -pz $PRELOADED --"
 fi
 if [ "x$GDB" = "x" ]; then
@@ -254,7 +277,6 @@ if [ "x$GDB" = "x" ]; then
 	valversion=`valgrind --version`
 	valmajor=`echo $valversion | sed 's,[a-z]*\-\([0-9]*\).*,\1,'`
         valminor=`echo $valversion | sed 's,[a-z]*\-[0-9]*.\([0-9]*\).*,\1,'`
-	emu_xargs=`echo $xargs | sed "s|+|-|g"`
 	if [ "x$VALGRIND_LOG_XML" = "x" ]; then
 	    valgrind_xml=
 	    log_file_prefix="--log-file="
@@ -294,17 +316,10 @@ if [ "x$GDB" = "x" ]; then
 	    sched_arg=
 	fi
 
-	beam_args=`$EXEC -emu_args_exit ${1+"$@"}`
-
-	# Time for some argument passing voodoo:
-	# $beam_args is a list of command line arguments separated by newlines.
-	# Make "$@" represent those arguments verbatim (including spaces and quotes).
-	SAVE_IFS="$IFS"
-	IFS='
-'
-	set -- $beam_args
-	IFS="$SAVE_IFS"
 	exec $taskset1 valgrind $valgrind_xml $valgrind_log $valgrind_misc_flags $BINDIR/$EMU_NAME $sched_arg $emu_xargs "$@" -pz $PRELOADED
+
+    elif [ $run_rr = yes ]; then
+	exec rr record --ignore-nested $BINDIR/$EMU_NAME $emu_xargs "$@" -pz $PRELOADED
     else
 	exec $EXEC $eeargs $xargs ${1+"$@"}
     fi
diff --git a/erts/etc/unix/etp-commands.in b/erts/etc/unix/etp-commands.in
index 8f70f879d5..95e065b156 100644
--- a/erts/etc/unix/etp-commands.in
+++ b/erts/etc/unix/etp-commands.in
@@ -2316,40 +2316,46 @@ end
 define etp-port-sched-flags-int
 # Args: int
 #
-  if ($arg0 & 0x1)
+  if ($arg0 & (1 << 0))
     printf " in-run-queue"
   end
-  if ($arg0 & 0x2)
+  if ($arg0 & (1 << 1))
     printf " executing"
   end
-  if ($arg0 & 0x4)
+  if ($arg0 & (1 << 2))
     printf " have-tasks"
   end
-  if ($arg0 & 0x8)
+  if ($arg0 & (1 << 3))
     printf " exited"
   end
-  if ($arg0 & 0x10)
+  if ($arg0 & (1 << 4))
     printf " busy-port"
   end
-  if ($arg0 & 0x20)
+  if ($arg0 & (1 << 5))
     printf " busy-port-q"
   end
-  if ($arg0 & 0x40)
+  if ($arg0 & (1 << 6))
     printf " chk-unset-busy-port-q"
   end
-  if ($arg0 & 0x80)
+  if ($arg0 & (1 << 7))
     printf " have-busy-tasks"
   end
-  if ($arg0 & 0x100)
+  if ($arg0 & (1 << 8))
     printf " have-nosuspend-tasks"
   end
-  if ($arg0 & 0x200)
+  if ($arg0 & (1 << 9))
     printf " parallelism"
   end
-  if ($arg0 & 0x400)
+  if ($arg0 & (1 << 10))
     printf " force-sched"
   end
-  if ($arg0 & 0xfffff800)
+  if ($arg0 & (1 << 11))
+    printf " exiting"
+  end
+  if ($arg0 & (1 << 12))
+    printf " exec-imm"
+  end
+  if ($arg0 & 0xffffc000)
     printf " GARBAGE"
   end
   printf "\n"
@@ -2850,6 +2856,14 @@ define etp-run-queue-info-internal
   printf "  Pointer: (ErtsRunQueue *) %p\n", $runq
 end
 
+define etp-fds
+  if $_exitsignal == -1
+    call erts_check_io_debug(0)
+  else
+    printf "Not yet implemented for core files"
+  end
+end
+
 define etp-disasm-1
   set $code_ptr = ((BeamInstr*)$arg0)
   set $addr = *$code_ptr
@@ -4314,6 +4328,10 @@ document etp-init
 %---------------------------------------------------------------------------
 end
 
+define hook-run
+  set $_exitsignal = -1
+end
+
 etp-init
 help etp-init
 etp-show
diff --git a/erts/include/internal/erl_printf.h b/erts/include/internal/erl_printf.h
index f180a53f18..7e9807f6a8 100644
--- a/erts/include/internal/erl_printf.h
+++ b/erts/include/internal/erl_printf.h
@@ -44,6 +44,7 @@ struct erts_dsprintf_buf_t_ {
 typedef int (*fmtfn_t)(void*, char*, size_t);
 
 int erts_write_fd(void *vfdp, char* buf, size_t len);
+int erts_write_fp(void *vfdp, char* buf, size_t len);
 int erts_write_ds(void *vdsbufp, char* buf, size_t len);
 
 int erts_printf(const char *, ...);
diff --git a/erts/lib_src/common/erl_printf.c b/erts/lib_src/common/erl_printf.c
index 9031a4c5b7..1de0f81e84 100644
--- a/erts/lib_src/common/erl_printf.c
+++ b/erts/lib_src/common/erl_printf.c
@@ -143,8 +143,8 @@ write_f_add_cr(void *vfp, char* buf, size_t len)
     return len;
 }
 
-static int
-write_f(void *vfp, char* buf, size_t len)
+int
+erts_write_fp(void *vfp, char* buf, size_t len)
 {
     ASSERT(vfp);
 #ifdef PUTC_ON_SMALL_WRITES
@@ -253,7 +253,7 @@ erts_printf(const char *format, ...)
 	FLOCKFILE(stdout);
 	res = erts_printf_format(erts_printf_add_cr_to_stdout
 				 ? write_f_add_cr
-				 : write_f,
+				 : erts_write_fp,
 				 (void *) stdout,
 				 (char *) format,
 				 arglist);
@@ -281,7 +281,7 @@ erts_fprintf(FILE *filep, const char *format, ...)
 	else if (erts_printf_add_cr_to_stderr && filep == stderr)
 	    fmt_f = write_f_add_cr;
 	else
-	    fmt_f = write_f;
+	    fmt_f = erts_write_fp;
 	FLOCKFILE(filep);
 	res = erts_printf_format(fmt_f,(void *)filep,(char *)format,arglist);
 	FUNLOCKFILE(filep);
@@ -386,7 +386,7 @@ erts_vprintf(const char *format, va_list arglist)
 	errno = 0;
 	res = erts_printf_format(erts_printf_add_cr_to_stdout
 				 ? write_f_add_cr
-				 : write_f,
+				 : erts_write_fp,
 				 (void *) stdout,
 				 (char *) format,
 				 arglist);
@@ -410,7 +410,7 @@ erts_vfprintf(FILE *filep, const char *format, va_list arglist)
 	else if (erts_printf_add_cr_to_stderr && filep == stderr)
 	    fmt_f = write_f_add_cr;
 	else
-	    fmt_f = write_f;
+	    fmt_f = erts_write_fp;
 	res = erts_printf_format(fmt_f,(void *)filep,(char *)format,arglist);
     }
     return res;
diff --git a/erts/preloaded/ebin/erlang.beam b/erts/preloaded/ebin/erlang.beam
index 58c17dc416..181a718287 100644
--- a/erts/preloaded/ebin/erlang.beam
+++ b/erts/preloaded/ebin/erlang.beam
diff --git a/erts/preloaded/ebin/erts_internal.beam b/erts/preloaded/ebin/erts_internal.beam
index 6691749dcb..5416826f19 100644
--- a/erts/preloaded/ebin/erts_internal.beam
+++ b/erts/preloaded/ebin/erts_internal.beam
diff --git a/erts/preloaded/ebin/init.beam b/erts/preloaded/ebin/init.beam
index 2acb1f1211..1c8d0e626a 100644
--- a/erts/preloaded/ebin/init.beam
+++ b/erts/preloaded/ebin/init.beam
diff --git a/erts/preloaded/ebin/zlib.beam b/erts/preloaded/ebin/zlib.beam
index a959ebaaf2..f388bc723a 100644
--- a/erts/preloaded/ebin/zlib.beam
+++ b/erts/preloaded/ebin/zlib.beam
diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl
index 72dd804412..f743b7d26b 100644
--- a/erts/preloaded/src/erlang.erl
+++ b/erts/preloaded/src/erlang.erl
@@ -48,6 +48,12 @@
 	 await_sched_wall_time_modifications/2,
 	 gather_gc_info_result/1]).
 
+-export([dist_ctrl_input_handler/2,
+         dist_ctrl_put_data/2,
+         dist_ctrl_get_data/1,
+         dist_ctrl_get_data_notification/1,
+         dist_get_stat/1]).
+
 -deprecated([now/0]).
 
 %% Get rid of autoimports of spawn to avoid clashes with ourselves.
@@ -87,6 +93,14 @@
 
 -export_type([prepared_code/0]).
 
+-opaque dist_handle() :: atom().
+
+-export_type([dist_handle/0]).
+
+-type iovec() :: [binary()].
+
+-export_type([iovec/0]).
+
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% Native code BIF stubs and their types
 %% (BIF's actually implemented in this module goes last in the file)
@@ -124,7 +138,7 @@
 	 has_prepared_code_on_load/1, hibernate/3]).
 -export([insert_element/3]).
 -export([integer_to_binary/1, integer_to_list/1]).
--export([iolist_size/1, iolist_to_binary/1]).
+-export([iolist_size/1, iolist_to_binary/1, iolist_to_iovec/1]).
 -export([is_alive/0, is_builtin/3, is_process_alive/1, length/1, link/1]).
 -export([list_to_atom/1, list_to_binary/1]).
 -export([list_to_bitstring/1, list_to_existing_atom/1, list_to_float/1]).
@@ -1079,6 +1093,12 @@ iolist_size(_Item) ->
 iolist_to_binary(_IoListOrBinary) ->
     erlang:nif_error(undefined).
 
+%% iolist_to_iovec/1
+-spec erlang:iolist_to_iovec(IoListOrBinary) -> iovec() when
+      IoListOrBinary :: iolist() | binary().
+iolist_to_iovec(_IoListOrBinary) ->
+    erlang:nif_error(undefined).
+
 %% is_alive/0
 -spec is_alive() -> boolean().
 is_alive() ->
@@ -1641,7 +1661,7 @@ setnode(_P1, _P2) ->
     erlang:nif_error(undefined).
 
 %% setnode/3
--spec erlang:setnode(P1, P2, P3) -> true when
+-spec erlang:setnode(P1, P2, P3) -> dist_handle() when
       P1 :: atom(),
       P2 :: port(),
       P3 :: {term(), term(), term(), term()}.
@@ -2090,7 +2110,7 @@ nodes(_Arg) ->
            | stream
            | {line, L :: non_neg_integer()}
            | {cd, Dir :: string() | binary()}
-           | {env, Env :: [{Name :: string(), Val :: string() | false}]}
+           | {env, Env :: [{Name :: os:env_var_name(), Val :: os:env_var_value() | false}]}
            | {args, [string() | binary()]}
            | {arg0, string() | binary()}
            | exit_status
@@ -2324,7 +2344,8 @@ spawn_opt(_Tuple) ->
       MSAcc_Thread :: #{ type := MSAcc_Thread_Type,
                         id := MSAcc_Thread_Id,
                         counters := MSAcc_Counters},
-      MSAcc_Thread_Type :: scheduler | async | aux,
+      MSAcc_Thread_Type :: async | aux | dirty_io_scheduler
+                         | dirty_cpu_scheduler | poll | scheduler,
       MSAcc_Thread_Id :: non_neg_integer(),
       MSAcc_Counters :: #{ MSAcc_Thread_State => non_neg_integer() },
       MSAcc_Thread_State :: alloc | aux | bif | busy_wait | check_io |
@@ -3204,6 +3225,47 @@ port_get_data(_Port) ->
     erlang:nif_error(undefined).
 
 %%
+%% Distribution channel management
+%%
+
+-spec erlang:dist_ctrl_input_handler(DHandle, InputHandler) -> 'ok' when
+      DHandle :: dist_handle(),
+      InputHandler :: pid().
+
+dist_ctrl_input_handler(_DHandle, _InputHandler) ->
+    erlang:nif_error(undefined).
+
+-spec erlang:dist_ctrl_put_data(DHandle, Data) -> 'ok' when
+      DHandle :: dist_handle(),
+      Data :: iodata().
+
+dist_ctrl_put_data(_DHandle, _Data) ->
+    erlang:nif_error(undefined).
+
+-spec erlang:dist_ctrl_get_data(DHandle) -> Data | 'none' when
+      DHandle :: dist_handle(),
+      Data :: iodata().
+
+dist_ctrl_get_data(_DHandle) ->
+    erlang:nif_error(undefined).
+
+-spec erlang:dist_ctrl_get_data_notification(DHandle) -> 'ok' when
+      DHandle :: dist_handle().
+
+dist_ctrl_get_data_notification(_DHandle) ->
+    erlang:nif_error(undefined).
+
+-spec erlang:dist_get_stat(DHandle) -> Res when
+      DHandle :: dist_handle(),
+      InputPackets :: non_neg_integer(),
+      OutputPackets :: non_neg_integer(),
+      PendingOutputPackets :: boolean(),
+      Res :: {'ok', InputPackets, OutputPackets, PendingOutputPackets}.
+
+dist_get_stat(_DHandle) ->
+    erlang:nif_error(undefined).
+
+%%
 %% If the emulator wants to perform a distributed command and
 %% a connection is not established to the actual node the following 
 %% functions are called in order to set up the connection and then
diff --git a/erts/preloaded/src/erts.app.src b/erts/preloaded/src/erts.app.src
index 7ab06164b4..e2ab8686d2 100644
--- a/erts/preloaded/src/erts.app.src
+++ b/erts/preloaded/src/erts.app.src
@@ -37,7 +37,7 @@
 	{registered, []},
 	{applications, []},
 	{env, []},
-	{runtime_dependencies, ["stdlib-3.0", "kernel-5.0", "sasl-3.0.1"]}
+	{runtime_dependencies, ["stdlib-3.5", "kernel-6.0", "sasl-3.0.1"]}
     ]}.
 
 %% vim: ft=erlang
diff --git a/erts/preloaded/src/erts_internal.erl b/erts/preloaded/src/erts_internal.erl
index 26fb1458af..bb1824ecd4 100644
--- a/erts/preloaded/src/erts_internal.erl
+++ b/erts/preloaded/src/erts_internal.erl
@@ -61,6 +61,8 @@
 
 -export([trace/3, trace_pattern/3]).
 
+-export([dist_ctrl_put_data/2]).
+
 %% Auto import name clash
 -export([check_process_code/1]).
 
@@ -461,3 +463,38 @@ trace(_PidSpec, _How, _FlagList) ->
       FlagList :: [ ].
 trace_pattern(_MFA, _MatchSpec, _FlagList) ->
     erlang:nif_error(undefined).
+
+-spec dist_ctrl_put_data(DHandle, Data) -> 'ok' when
+      DHandle :: erlang:dist_handle(),
+      Data :: iolist().
+
+dist_ctrl_put_data(DHandle, IoList) ->
+    %%
+    %% Helper for erlang:dist_ctrl_put_data/2
+    %%
+    %% erlang:dist_ctrl_put_data/2 traps to
+    %% this function if second argument is
+    %% a list...
+    %%
+    try
+        Binary = erlang:iolist_to_binary(IoList),
+        %% Restart erlang:dist_ctrl_put_data/2
+        %% with the iolist converted to a binary...
+        erlang:dist_ctrl_put_data(DHandle, Binary)
+    catch
+        Class : Reason ->
+            %% Throw exception as if thrown from
+            %% erlang:dist_ctrl_put_data/2 ...
+            RootST = try erlang:error(Reason)
+                     catch
+                         error:Reason ->
+                             case erlang:get_stacktrace() of
+                                 [] -> [];
+                                 ST -> tl(ST)
+                             end
+                     end,
+	    StackTrace = [{erlang, dist_ctrl_put_data,
+                           [DHandle, IoList], []}
+                          | RootST],
+	    erlang:raise(Class, Reason, StackTrace)
+    end.
diff --git a/erts/preloaded/src/init.erl b/erts/preloaded/src/init.erl
index 1ccf8d599f..34a9f6b8b9 100644
--- a/erts/preloaded/src/init.erl
+++ b/erts/preloaded/src/init.erl
@@ -200,6 +200,8 @@ boot(BootArgs) ->
     register(init, self()),
     process_flag(trap_exit, true),
 
+    %% Load the zlib nif
+    zlib:on_load(),
     %% Load the tracer nif
     erl_tracer:on_load(),
 
diff --git a/erts/preloaded/src/zlib.erl b/erts/preloaded/src/zlib.erl
index 8cd3e39fd7..03c9ae38a1 100644
--- a/erts/preloaded/src/zlib.erl
+++ b/erts/preloaded/src/zlib.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2003-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2003-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -20,20 +20,31 @@
 
 -module(zlib).
 
--export([open/0,close/1,deflateInit/1,deflateInit/2,deflateInit/6,
-	 deflateSetDictionary/2,deflateReset/1,deflateParams/3,
-	 deflate/2,deflate/3,deflateEnd/1,
-	 inflateInit/1,inflateInit/2,
-	 inflateSetDictionary/2,inflateGetDictionary/1,
-	 inflateSync/1,inflateReset/1,inflate/2,inflateEnd/1,
-	 inflateChunk/1, inflateChunk/2,
-	 setBufSize/2,getBufSize/1,
-	 crc32/1,crc32/2,crc32/3,adler32/2,adler32/3,getQSize/1,
-	 crc32_combine/4,adler32_combine/4,
-	 compress/1,uncompress/1,zip/1,unzip/1,
-	 gzip/1,gunzip/1]).
-
--export_type([zstream/0, zlevel/0, zwindowbits/0, zmemlevel/0, zstrategy/0]).
+-export([open/0,close/1,set_controlling_process/2,
+         deflateInit/1,deflateInit/2,deflateInit/6,
+         deflateSetDictionary/2,deflateReset/1,deflateParams/3,
+         deflate/2,deflate/3,deflateEnd/1,
+         inflateInit/1,inflateInit/2,inflateInit/3,
+         inflateSetDictionary/2,inflateGetDictionary/1, inflateReset/1,
+         inflate/2,inflate/3,inflateEnd/1,
+         inflateChunk/2,inflateChunk/1,
+         safeInflate/2,
+         setBufSize/2,getBufSize/1,
+         crc32/1,crc32/2,crc32/3,adler32/2,adler32/3,
+         crc32_combine/4,adler32_combine/4,
+         compress/1,uncompress/1,zip/1,unzip/1,
+         gzip/1,gunzip/1]).
+
+-export([on_load/0]).
+
+%% These are soft-deprecated until OTP 21.
+% -deprecated([inflateChunk/1, inflateChunk/2,
+%              getBufSize/1, setBufSize/2,
+%              crc32/1,crc32/2,crc32/3,adler32/2,adler32/3,
+%              crc32_combine/4,adler32_combine/4]).
+
+-export_type([zstream/0, zflush/0, zlevel/0, zwindowbits/0, zmemlevel/0,
+              zstrategy/0]).
 
 %% flush argument encoding
 -define(Z_NO_FLUSH,      0).
@@ -56,116 +67,88 @@
 %% deflate compression method
 -define(Z_DEFLATED,  8).
 
--define(Z_NULL, 0).
-
 -define(MAX_WBITS, 15).
 
-%% gzip defs (rfc 1952)
-
--define(ID1, 16#1f).
--define(ID2, 16#8b).
-
--define(FTEXT,     16#01).
--define(FHCRC,     16#02).
--define(FEXTRA,    16#04).
--define(FNAME,     16#08).
--define(FCOMMENT,  16#10).
--define(RESERVED,  16#E0).
-
--define(OS_MDDOS,   0).
--define(OS_AMIGA,   1).
--define(OS_OPENVMS, 2).
--define(OS_UNIX,    3).
--define(OS_VMCMS,   4).
--define(OS_ATARI,   5).
--define(OS_OS2,     6).
--define(OS_MAC,     7).
--define(OS_ZSYS,    8).
--define(OS_CPM,     9).
--define(OS_TOP20,  10).
--define(OS_NTFS,   11).
--define(OS_QDOS,   12).
--define(OS_ACORN,  13).
--define(OS_UNKNOWN,255).
-
--define(DEFLATE_INIT,    1).
--define(DEFLATE_INIT2,   2).
--define(DEFLATE_SETDICT, 3).
--define(DEFLATE_RESET,   4).
--define(DEFLATE_END,     5).
--define(DEFLATE_PARAMS,  6).
--define(DEFLATE,         7).
-
--define(INFLATE_INIT,    8).
--define(INFLATE_INIT2,   9).
--define(INFLATE_SETDICT, 10).
--define(INFLATE_GETDICT, 11).
--define(INFLATE_SYNC,    12).
--define(INFLATE_RESET,   13).
--define(INFLATE_END,     14).
--define(INFLATE,         15).
--define(INFLATE_CHUNK,   26).
-
--define(CRC32_0,         16).
--define(CRC32_1,         17).
--define(CRC32_2,         18).
-
--define(SET_BUFSZ,       19).
--define(GET_BUFSZ,       20).
--define(GET_QSIZE,       21).
-
--define(ADLER32_1,       22).
--define(ADLER32_2,       23).
-
--define(CRC32_COMBINE,   24).
--define(ADLER32_COMBINE, 25).
+-define(DEFAULT_MEMLEVEL, 8).
+-define(DEFAULT_WBITS, 15).
+
+-define(EOS_BEHAVIOR_ERROR, 0).
+-define(EOS_BEHAVIOR_RESET, 1).
+-define(EOS_BEHAVIOR_CUT, 2).
+
+%% Chunk sizes are hardcoded on account of them screwing with the
+%% predictability of the system. zlib is incapable of trapping so we need to
+%% ensure that it never operates on any significant amount of data.
+-define(DEFLATE_IN_CHUNKSIZE, 8 bsl 10).
+-define(DEFLATE_OUT_CHUNKSIZE, 8 bsl 10).
+-define(INFLATE_IN_CHUNKSIZE, 8 bsl 10).
+-define(INFLATE_OUT_CHUNKSIZE, 16 bsl 10).
 
 %%------------------------------------------------------------------------
 
-%% Main data types of the file
--type zstream()     :: port().
+%% Public data types.
+-type zstream() :: term().
+-type zflush() :: 'none' | 'sync' | 'full' | 'finish'.
 
-%% Auxiliary data types of the file
--type zlevel()      :: 'none' | 'default' | 'best_compression' | 'best_speed' 
-                     | 0..9.
--type zmethod()     :: 'deflated'.
+-type zlevel() ::
+    'none' | 'default' | 'best_compression' | 'best_speed' | 0..9.
+-type zstrategy() :: 'default' | 'filtered' | 'huffman_only' | 'rle'.
+
+-type zmemlevel() :: 1..9.
 -type zwindowbits() :: -15..-8 | 8..47.
--type zmemlevel()   :: 1..9.
--type zstrategy()   :: 'default' | 'filtered' | 'huffman_only' | 'rle'.
+
+%% Private data types.
+
+-type zmethod()     :: 'deflated'.
+
+-record(zlib_opts, {
+        stream :: zstream(),
+        method :: term(),
+        input_chunk_size :: integer(),
+        output_chunk_size :: integer(),
+        flush :: integer()
+    }).
 
 %%------------------------------------------------------------------------
 
-%% open a z_stream
+on_load() ->
+    case erlang:load_nif(atom_to_list(?MODULE), 0) of
+        ok -> ok
+    end.
+
 -spec open() -> zstream().
 open() ->
-    open_port({spawn, "zlib_drv"}, [binary]).
+    open_nif().
+open_nif() ->
+    erlang:nif_error(undef).
 
-%% close and release z_stream
 -spec close(Z) -> 'ok' when
       Z :: zstream().
 close(Z) ->
-    try
-	true = port_close(Z),
-	receive	      %In case the caller is the owner and traps exits
-	    {'EXIT',Z,_} -> ok
-	after 0 -> ok
-	end
-    catch _:_ -> erlang:error(badarg)
-    end.
+    close_nif(Z).
+close_nif(_Z) ->
+    erlang:nif_error(undef).
+
+-spec set_controlling_process(Z, Pid) -> 'ok' when
+      Z :: zstream(),
+      Pid :: pid().
+set_controlling_process(Z, Pid) ->
+    set_controller_nif(Z, Pid).
+set_controller_nif(_Z, _Pid) ->
+    erlang:nif_error(undef).
 
 -spec deflateInit(Z) -> 'ok' when
       Z :: zstream().
 deflateInit(Z) ->
-    call(Z, ?DEFLATE_INIT, <<?Z_DEFAULT_COMPRESSION:32>>).
+    deflateInit(Z, default).
 
 -spec deflateInit(Z, Level) -> 'ok' when
       Z :: zstream(),
       Level :: zlevel().
 deflateInit(Z, Level) ->
-    call(Z, ?DEFLATE_INIT, <<(arg_level(Level)):32>>).
+    deflateInit(Z, Level, deflated, ?DEFAULT_WBITS, ?DEFAULT_MEMLEVEL, default).
 
--spec deflateInit(Z, Level, Method,
-		  WindowBits, MemLevel, Strategy) -> 'ok' when
+-spec deflateInit(Z, Level, Method, WindowBits, MemLevel, Strategy) -> 'ok' when
       Z :: zstream(),
       Level :: zlevel(),
       Method :: zmethod(),
@@ -173,31 +156,49 @@ deflateInit(Z, Level) ->
       MemLevel :: zmemlevel(),
       Strategy :: zstrategy().
 deflateInit(Z, Level, Method, WindowBits, MemLevel, Strategy) ->
-    call(Z, ?DEFLATE_INIT2, <<(arg_level(Level)):32, 
-			     (arg_method(Method)):32,
-			     (arg_bitsz(WindowBits)):32, 
-			     (arg_mem(MemLevel)):32,
-			     (arg_strategy(Strategy)):32>>).
+    deflateInit_nif(Z,
+                    arg_level(Level),
+                    arg_method(Method),
+                    arg_bitsz(WindowBits),
+                    arg_mem(MemLevel),
+                    arg_strategy(Strategy)).
+deflateInit_nif(_Z, _Level, _Method, _WindowBits, _MemLevel, _Strategy) ->
+    erlang:nif_error(undef).
 
 -spec deflateSetDictionary(Z, Dictionary) -> Adler32 when
       Z :: zstream(),
       Dictionary :: iodata(),
       Adler32 :: integer().
 deflateSetDictionary(Z, Dictionary) ->
-    call(Z, ?DEFLATE_SETDICT, Dictionary).
+    deflateSetDictionary_nif(Z, Dictionary).
+deflateSetDictionary_nif(_Z, _Dictionary) ->
+    erlang:nif_error(undef).
 
 -spec deflateReset(Z) -> 'ok' when
       Z :: zstream().
 deflateReset(Z) ->
-    call(Z, ?DEFLATE_RESET, []).
+    deflateReset_nif(Z).
+deflateReset_nif(_Z) ->
+    erlang:nif_error(undef).
 
 -spec deflateParams(Z, Level, Strategy) -> ok when
       Z :: zstream(),
       Level :: zlevel(),
       Strategy :: zstrategy().
-deflateParams(Z, Level, Strategy) ->
-    call(Z, ?DEFLATE_PARAMS, <<(arg_level(Level)):32, 
-			      (arg_strategy(Strategy)):32>>).
+deflateParams(Z, Level0, Strategy0) ->
+    Level = arg_level(Level0),
+    Strategy = arg_strategy(Strategy0),
+    case deflateParams_nif(Z, Level, Strategy) of
+        buf_error ->
+            %% We had data left in the pipe; flush everything and stash it away
+            %% for the next deflate call before trying again.
+            Output = deflate(Z, <<>>, full),
+            save_progress(Z, deflate, Output),
+            deflateParams_nif(Z, Level, Strategy);
+        Any -> Any
+    end.
+deflateParams_nif(_Z, _Level, _Strategy) ->
+    erlang:nif_error(undef).
 
 -spec deflate(Z, Data) -> Compressed when
       Z :: zstream(),
@@ -209,170 +210,239 @@ deflate(Z, Data) ->
 -spec deflate(Z, Data, Flush) -> Compressed when
       Z :: zstream(),
       Data :: iodata(),
-      Flush :: none | sync | full | finish,
+      Flush :: zflush(),
       Compressed :: iolist().
 deflate(Z, Data, Flush) ->
-    try port_command(Z, Data) of
-	true ->
-	    _ = call(Z, ?DEFLATE, <<(arg_flush(Flush)):32>>),
-	    collect(Z)
-    catch 
-	error:_Err ->
-	    flush(Z),
-	    erlang:error(badarg) 
-    end.
+    Progress = restore_progress(Z, deflate),
+    enqueue_input(Z, Data),
+    append_iolist(Progress, dequeue_all_chunks(Z, deflate_opts(Flush))).
+
+deflate_opts(Flush) ->
+    #zlib_opts{
+        method = fun deflate_nif/4,
+        input_chunk_size = ?DEFLATE_IN_CHUNKSIZE,
+        output_chunk_size = ?DEFLATE_OUT_CHUNKSIZE,
+        flush = arg_flush(Flush)
+    }.
+
+deflate_nif(_Z, _InputChSize, _OutputChSize, _Flush) ->
+    erlang:nif_error(undef).
 
 -spec deflateEnd(Z) -> 'ok' when
       Z :: zstream().
 deflateEnd(Z) ->
-    call(Z, ?DEFLATE_END, []).    
+    deflateEnd_nif(Z).
+deflateEnd_nif(_Z) ->
+    erlang:nif_error(undef).
 
 -spec inflateInit(Z) -> 'ok' when
       Z :: zstream().
 inflateInit(Z) ->
-    call(Z, ?INFLATE_INIT, []).
+    inflateInit(Z, ?DEFAULT_WBITS).
 
 -spec inflateInit(Z, WindowBits) -> 'ok' when
       Z :: zstream(),
       WindowBits :: zwindowbits().
-inflateInit(Z, WindowBits) -> 
-    call(Z, ?INFLATE_INIT2, <<(arg_bitsz(WindowBits)):32>>).
+inflateInit(Z, WindowBits) ->
+    inflateInit(Z, WindowBits, cut).
+
+-spec inflateInit(Z, WindowBits, EoSBehavior) -> 'ok' when
+      Z :: zstream(),
+      WindowBits :: zwindowbits(),
+      EoSBehavior :: error | reset | cut.
+inflateInit(Z, WindowBits, EoSBehavior) ->
+    inflateInit_nif(Z, arg_bitsz(WindowBits), arg_eos_behavior(EoSBehavior)).
+inflateInit_nif(_Z, _WindowBits, _EoSBehavior) ->
+    erlang:nif_error(undef).
 
 -spec inflateSetDictionary(Z, Dictionary) -> 'ok' when
       Z :: zstream(),
       Dictionary :: iodata().
-inflateSetDictionary(Z, Dictionary) -> 
-    call(Z, ?INFLATE_SETDICT, Dictionary).
+inflateSetDictionary(Z, Dictionary) ->
+    inflateSetDictionary_nif(Z, Dictionary).
+inflateSetDictionary_nif(_Z, _Dictionary) ->
+    erlang:nif_error(undef).
 
 -spec inflateGetDictionary(Z) -> Dictionary when
       Z :: zstream(),
-      Dictionary :: iolist().
+      Dictionary :: binary().
 inflateGetDictionary(Z) ->
-    _ = call(Z, ?INFLATE_GETDICT, []),
-    collect(Z).
-
--spec inflateSync(zstream()) -> 'ok'.
-inflateSync(Z) -> 
-    call(Z, ?INFLATE_SYNC, []).
+    case inflateGetDictionary_nif(Z) of
+        Dictionary when is_binary(Dictionary) ->
+            Dictionary;
+        not_supported ->
+            erlang:error(enotsup)
+    end.
+inflateGetDictionary_nif(_Z) ->
+    erlang:nif_error(undef).
 
 -spec inflateReset(Z) -> 'ok' when
       Z :: zstream().
-inflateReset(Z) -> 
-    call(Z, ?INFLATE_RESET, []).
+inflateReset(Z) ->
+    inflateReset_nif(Z).
+inflateReset_nif(_Z) ->
+    erlang:nif_error(undef).
 
 -spec inflate(Z, Data) -> Decompressed when
       Z :: zstream(),
       Data :: iodata(),
       Decompressed :: iolist().
 inflate(Z, Data) ->
-    try port_command(Z, Data) of
-	true -> 
-	    _ = call(Z, ?INFLATE, <<?Z_NO_FLUSH:32>>),
-	    collect(Z)
-    catch 
-	error:_Err ->
-	    flush(Z),
-	    erlang:error(badarg) 
+    inflate(Z, Data, []).
+
+-spec inflate(Z, Data, Options) -> Decompressed when
+      Z :: zstream(),
+      Data :: iodata(),
+      Options :: list({exception_on_need_dict, boolean()}),
+      Decompressed :: iolist() |
+                      {need_dictionary,
+                       Adler32 :: integer(),
+                       Output :: iolist()}.
+inflate(Z, Data, Options) ->
+    enqueue_input(Z, Data),
+    Result = dequeue_all_chunks(Z, inflate_opts()),
+    case proplist_get_value(Options, exception_on_need_dict, true) of
+        true -> exception_on_need_dict(Z, Result);
+        false -> Result
     end.
 
+inflate_nif(_Z, _InputChSize, _OutputChSize, _Flush) ->
+    erlang:nif_error(undef).
+
+inflate_opts() ->
+    #zlib_opts{
+        method = fun inflate_nif/4,
+        input_chunk_size = ?INFLATE_IN_CHUNKSIZE,
+        output_chunk_size = ?INFLATE_OUT_CHUNKSIZE,
+        flush = arg_flush(none)
+    }.
+
 -spec inflateChunk(Z, Data) -> Decompressed | {more, Decompressed} when
       Z :: zstream(),
       Data :: iodata(),
       Decompressed :: iolist().
 inflateChunk(Z, Data) ->
-    try port_command(Z, Data) of
-	true ->
-        inflateChunk(Z)
-    catch
-	error:_Err ->
-	    flush(Z),
-	    erlang:error(badarg)
-    end.
+    enqueue_input(Z, Data),
+    inflateChunk(Z).
 
 -spec inflateChunk(Z) -> Decompressed | {more, Decompressed} when
       Z :: zstream(),
       Decompressed :: iolist().
 inflateChunk(Z) ->
-    Status = call(Z, ?INFLATE_CHUNK, []),
-    Data = receive
-	{Z, {data, Bin}} ->
-	    Bin
-    after 0 ->
-	    []
-    end,
-
-    case Status of
-        Good when (Good == ok) orelse (Good == stream_end) ->
-            Data;
-        inflate_has_more ->
-            {more, Data}
-    end.
+    Opts0 = inflate_opts(),
+    Opts = Opts0#zlib_opts { output_chunk_size = getBufSize(Z) },
+
+    Result0 = dequeue_next_chunk(Z, Opts),
+    Result1 = exception_on_need_dict(Z, Result0),
+    yield_inflateChunk(Z, Result1).
+
+yield_inflateChunk(_Z, {continue, Output}) ->
+    {more, lists:flatten(Output)};
+yield_inflateChunk(_Z, {finished, Output}) ->
+    lists:flatten(Output).
+
+exception_on_need_dict(Z, {need_dictionary, Adler, Output}) ->
+    Progress = restore_progress(Z, inflate),
+    save_progress(Z, inflate, append_iolist(Progress, Output)),
+    erlang:error({need_dictionary, Adler});
+exception_on_need_dict(Z, {Mark, Output}) ->
+    Progress = restore_progress(Z, inflate),
+    {Mark, append_iolist(Progress, Output)};
+exception_on_need_dict(Z, Output) when is_list(Output); is_binary(Output) ->
+    Progress = restore_progress(Z, inflate),
+    append_iolist(Progress, Output).
+
+-spec safeInflate(Z, Data) -> Result when
+      Z :: zstream(),
+      Data :: iodata(),
+      Result :: {continue, Output :: iolist()} |
+                {finished, Output :: iolist()} |
+                {need_dictionary,
+                 Adler32 :: integer(),
+                 Output :: iolist()}.
+safeInflate(Z, Data) ->
+    enqueue_input(Z, Data),
+    dequeue_next_chunk(Z, inflate_opts()).
 
 -spec inflateEnd(Z) -> 'ok' when
       Z :: zstream().
 inflateEnd(Z) ->
-    call(Z, ?INFLATE_END, []).
+    inflateEnd_nif(Z).
+inflateEnd_nif(_Z) ->
+    erlang:nif_error(undef).
 
 -spec setBufSize(Z, Size) -> 'ok' when
       Z :: zstream(),
       Size :: non_neg_integer().
-setBufSize(Z, Size) ->
-    call(Z, ?SET_BUFSZ, <<Size:32>>).
+setBufSize(Z, Size) when is_integer(Size), Size > 16, Size < (1 bsl 24) ->
+    setBufSize_nif(Z, Size);
+setBufSize(_Z, _Size) ->
+    erlang:error(badarg).
+setBufSize_nif(_Z, _Size) ->
+    erlang:nif_error(undef).
 
--spec getBufSize(Z) -> Size when
-      Z :: zstream(),
-      Size :: non_neg_integer().
+-spec getBufSize(Z) -> non_neg_integer() when
+      Z :: zstream().
 getBufSize(Z) ->
-    call(Z, ?GET_BUFSZ, []).
+    getBufSize_nif(Z).
+getBufSize_nif(_Z) ->
+    erlang:nif_error(undef).
 
 -spec crc32(Z) -> CRC when
       Z :: zstream(),
       CRC :: integer().
 crc32(Z) ->
-    call(Z, ?CRC32_0, []).
+    crc32_nif(Z).
+crc32_nif(_Z) ->
+    erlang:nif_error(undef).
 
 -spec crc32(Z, Data) -> CRC when
       Z :: zstream(),
       Data :: iodata(),
       CRC :: integer().
-crc32(Z, Data) ->
-    call(Z, ?CRC32_1, Data).
+crc32(Z, Data) when is_reference(Z) ->
+    erlang:crc32(Data);
+crc32(_Z, _Data) ->
+    erlang:error(badarg).
 
 -spec crc32(Z, PrevCRC, Data) -> CRC when
       Z :: zstream(),
       PrevCRC :: integer(),
       Data :: iodata(),
       CRC :: integer().
-crc32(Z, CRC, Data) ->
-    call(Z, ?CRC32_2, [<<CRC:32>>, Data]).
+crc32(Z, CRC, Data) when is_reference(Z) ->
+    erlang:crc32(CRC, Data);
+crc32(_Z, _CRC, _Data) ->
+    erlang:error(badarg).
+
+-spec crc32_combine(Z, CRC1, CRC2, Size2) -> CRC when
+      Z :: zstream(),
+      CRC :: integer(),
+      CRC1 :: integer(),
+      CRC2 :: integer(),
+      Size2 :: integer().
+crc32_combine(Z, CRC1, CRC2, Size2) when is_reference(Z) ->
+    erlang:crc32_combine(CRC1, CRC2, Size2);
+crc32_combine(_Z, _CRC1, _CRC2, _Size2) ->
+    erlang:error(badarg).
 
 -spec adler32(Z, Data) -> CheckSum when
       Z :: zstream(),
       Data :: iodata(),
       CheckSum :: integer().
-adler32(Z, Data) ->
-    call(Z, ?ADLER32_1, Data).
+adler32(Z, Data) when is_reference(Z) ->
+    erlang:adler32(Data);
+adler32(_Z, _Data) ->
+    erlang:error(badarg).
 
 -spec adler32(Z, PrevAdler, Data) -> CheckSum when
       Z :: zstream(),
       PrevAdler :: integer(),
       Data :: iodata(),
       CheckSum :: integer().
-adler32(Z, Adler, Data) when is_integer(Adler) ->
-    call(Z, ?ADLER32_2, [<<Adler:32>>, Data]);
-adler32(_Z, _Adler, _Data)  ->
-    erlang:error(badarg).
-
--spec crc32_combine(Z, CRC1, CRC2, Size2) -> CRC when
-      Z :: zstream(),
-      CRC :: integer(),
-      CRC1 :: integer(),
-      CRC2 :: integer(),
-      Size2 :: integer().
-crc32_combine(Z, CRC1, CRC2, Len2) 
-  when is_integer(CRC1), is_integer(CRC2), is_integer(Len2) ->
-    call(Z, ?CRC32_COMBINE, <<CRC1:32, CRC2:32, Len2:32>>);
-crc32_combine(_Z, _CRC1, _CRC2, _Len2) ->
+adler32(Z, Adler, Data) when is_reference(Z) ->
+    erlang:adler32(Adler, Data);
+adler32(_Z, _Adler, _Data) ->
     erlang:error(badarg).
 
 -spec adler32_combine(Z, Adler1, Adler2, Size2) -> Adler when
@@ -381,16 +451,11 @@ crc32_combine(_Z, _CRC1, _CRC2, _Len2) ->
       Adler1 :: integer(),
       Adler2 :: integer(),
       Size2 :: integer().
-adler32_combine(Z, Adler1, Adler2, Len2) 
-  when is_integer(Adler1), is_integer(Adler2), is_integer(Len2) ->
-    call(Z, ?ADLER32_COMBINE, <<Adler1:32, Adler2:32, Len2:32>>);
-adler32_combine(_Z, _Adler1, _Adler2, _Len2) ->
+adler32_combine(Z, Adler1, Adler2, Size2) when is_reference(Z) ->
+    erlang:adler32_combine(Adler1, Adler2, Size2);
+adler32_combine(_Z, _Adler1, _Adler2, _Size2) ->
     erlang:error(badarg).
 
--spec getQSize(zstream()) -> non_neg_integer().
-getQSize(Z) ->
-    call(Z, ?GET_QSIZE, []).
-
 %% compress/uncompress zlib with header
 -spec compress(Data) -> Compressed when
       Data :: iodata(),
@@ -398,13 +463,13 @@ getQSize(Z) ->
 compress(Data) ->
     Z = open(),
     Bs = try
-	     deflateInit(Z, default),
-	     B = deflate(Z, Data, finish),
-	     deflateEnd(Z),
-	     B
-	 after
-	     close(Z)
-	 end,
+             deflateInit(Z, default),
+             B = deflate(Z, Data, finish),
+             deflateEnd(Z),
+             B
+         after
+             close(Z)
+         end,
     iolist_to_binary(Bs).
 
 -spec uncompress(Data) -> Decompressed when
@@ -416,14 +481,14 @@ uncompress(Data) ->
             if
                 Size >= 8 ->
                     Z = open(),
-		    Bs = try
-			     inflateInit(Z),
-			     B = inflate(Z, Data),
-			     inflateEnd(Z),
-			     B
-			 after
-			     close(Z)
-			 end,
+                    Bs = try
+                             inflateInit(Z),
+                             B = inflate(Z, Data),
+                             inflateEnd(Z),
+                             B
+                         after
+                             close(Z)
+                         end,
                     iolist_to_binary(Bs);
                 true ->
                     erlang:error(data_error)
@@ -440,13 +505,13 @@ uncompress(Data) ->
 zip(Data) ->
     Z = open(),
     Bs = try
-	     deflateInit(Z, default, deflated, -?MAX_WBITS, 8, default),
-	     B = deflate(Z, Data, finish),
-	     deflateEnd(Z),
-	     B
-	 after
-	     close(Z)
-	 end,
+             deflateInit(Z, default, deflated, -?MAX_WBITS, 8, default),
+             B = deflate(Z, Data, finish),
+             deflateEnd(Z),
+             B
+         after
+             close(Z)
+         end,
     iolist_to_binary(Bs).
 
 -spec unzip(Data) -> Decompressed when
@@ -455,28 +520,28 @@ zip(Data) ->
 unzip(Data) ->
     Z = open(),
     Bs = try
-	     inflateInit(Z, -?MAX_WBITS),
-	     B = inflate(Z, Data),
-	     inflateEnd(Z),
-	     B
-	 after
-	     close(Z)
-	 end,
+             inflateInit(Z, -?MAX_WBITS),
+             B = inflate(Z, Data),
+             inflateEnd(Z),
+             B
+         after
+             close(Z)
+         end,
     iolist_to_binary(Bs).
-    
+
 -spec gzip(Data) -> Compressed when
       Data :: iodata(),
       Compressed :: binary().
 gzip(Data) ->
     Z = open(),
     Bs = try
-	     deflateInit(Z, default, deflated, 16+?MAX_WBITS, 8, default),
-	     B = deflate(Z, Data, finish),
-	     deflateEnd(Z),
-	     B
-	 after
-	     close(Z)
-	 end,
+             deflateInit(Z, default, deflated, 16+?MAX_WBITS, 8, default),
+             B = deflate(Z, Data, finish),
+             deflateEnd(Z),
+             B
+         after
+             close(Z)
+         end,
     iolist_to_binary(Bs).
 
 -spec gunzip(Data) -> Decompressed when
@@ -485,92 +550,155 @@ gzip(Data) ->
 gunzip(Data) ->
     Z = open(),
     Bs = try
-	     inflateInit(Z, 16+?MAX_WBITS),
-	     B = inflate(Z, Data),
-	     inflateEnd(Z),
-	     B
-	 after
-	     close(Z)
-	 end,
+             inflateInit(Z, 16+?MAX_WBITS, reset),
+             B = inflate(Z, Data),
+             inflateEnd(Z),
+             B
+         after
+             close(Z)
+         end,
     iolist_to_binary(Bs).
 
--spec collect(zstream()) -> iolist().
-collect(Z) -> 
-    collect(Z, []).
-
--spec collect(zstream(), iolist()) -> iolist().
-collect(Z, Acc) ->
-    receive 
-	{Z, {data, Bin}} ->
-	    collect(Z, [Bin|Acc])
-    after 0 ->
-	    reverse(Acc)
+-spec dequeue_all_chunks(Z, Opts) -> Result when
+    Z :: zstream(),
+    Opts :: #zlib_opts{},
+    Result :: {need_dictionary, integer(), iolist()} |
+              iolist().
+dequeue_all_chunks(Z, Opts) ->
+    dequeue_all_chunks_1(Z, Opts, []).
+dequeue_all_chunks_1(Z, Opts, Output) ->
+    case dequeue_next_chunk(Z, Opts) of
+        {need_dictionary, _, _} = NeedDict ->
+            NeedDict;
+        {continue, Chunk} ->
+            dequeue_all_chunks_1(Z, Opts, append_iolist(Output, Chunk));
+        {finished, Chunk} ->
+            append_iolist(Output, Chunk)
     end.
 
--spec flush(zstream()) -> 'ok'.
-flush(Z) ->
-    receive
-	{Z, {data,_}} ->
-	    flush(Z)
-    after 0 ->
-	    ok
+-spec dequeue_next_chunk(Z, Opts) -> Result when
+    Z :: zstream(),
+    Opts :: #zlib_opts{},
+    Result :: {need_dictionary, integer(), iolist()} |
+              {continue, iolist()} |
+              {finished, iolist()}.
+dequeue_next_chunk(Z, Opts) ->
+    Method = Opts#zlib_opts.method,
+    IChSz = Opts#zlib_opts.input_chunk_size,
+    OChSz = Opts#zlib_opts.output_chunk_size,
+    Flush = Opts#zlib_opts.flush,
+    Method(Z, IChSz, OChSz, Flush).
+
+-spec append_iolist(IO, D) -> iolist() when
+    IO :: iodata(),
+    D :: iodata().
+append_iolist([], D) when is_list(D) -> D;
+append_iolist([], D) -> [D];
+append_iolist(IO, []) -> IO;
+append_iolist(IO, [D]) -> [IO, D];
+append_iolist(IO, D) -> [IO, D].
+
+%% inflate/2 and friends are documented as throwing an error on Z_NEED_DICT
+%% rather than simply returning something to that effect, and deflateParams/3
+%% may flush behind the scenes. This requires us to stow away our current
+%% progress in the handle and resume from that point on our next call.
+%%
+%% Generally speaking this is either a refc binary or nothing at all, so it's
+%% pretty cheap.
+
+-spec save_progress(Z, Kind, Output) -> ok when
+      Z :: zstream(),
+      Kind :: inflate | deflate,
+      Output :: iolist().
+save_progress(Z, Kind, Output) ->
+    ok = setStash_nif(Z, {Kind, Output}).
+
+-spec restore_progress(Z, Kind) -> iolist() when
+    Z :: zstream(),
+    Kind :: inflate | deflate.
+restore_progress(Z, Kind) ->
+    case getStash_nif(Z) of
+        {ok, {Kind, Output}} ->
+            ok = clearStash_nif(Z),
+            Output;
+        empty ->
+            []
     end.
-    
-arg_flush(none)    -> ?Z_NO_FLUSH;
+
+-spec clearStash_nif(Z) -> ok when
+      Z :: zstream().
+clearStash_nif(_Z) ->
+    erlang:nif_error(undef).
+
+-spec setStash_nif(Z, Term) -> ok when
+      Z :: zstream(),
+      Term :: term().
+setStash_nif(_Z, _Term) ->
+    erlang:nif_error(undef).
+
+-spec getStash_nif(Z) -> {ok, term()} | empty when
+      Z :: zstream().
+getStash_nif(_Z) ->
+    erlang:nif_error(undef).
+
+%% The 'proplists' module isn't preloaded so we can't rely on its existence.
+proplist_get_value([], _Name, DefVal) -> DefVal;
+proplist_get_value([{Name, Value} | _Opts], Name, _DefVal) -> Value;
+proplist_get_value([_Head | Opts], Name, DefVal) ->
+    proplist_get_value(Opts, Name, DefVal).
+
+arg_flush(none)   -> ?Z_NO_FLUSH;
 %% ?Z_PARTIAL_FLUSH is deprecated in zlib -- deliberately not included.
-arg_flush(sync)    -> ?Z_SYNC_FLUSH;
-arg_flush(full)    -> ?Z_FULL_FLUSH;
-arg_flush(finish)  -> ?Z_FINISH;
-arg_flush(_) -> erlang:error(badarg).
+arg_flush(sync)   -> ?Z_SYNC_FLUSH;
+arg_flush(full)   -> ?Z_FULL_FLUSH;
+arg_flush(finish) -> ?Z_FINISH;
+arg_flush(_) -> erlang:error(bad_flush_mode).
 
 arg_level(none)             -> ?Z_NO_COMPRESSION;
 arg_level(best_speed)       -> ?Z_BEST_SPEED;
 arg_level(best_compression) -> ?Z_BEST_COMPRESSION;
 arg_level(default)          -> ?Z_DEFAULT_COMPRESSION;
 arg_level(Level) when is_integer(Level), Level >= 0, Level =< 9 -> Level;
-arg_level(_) -> erlang:error(badarg).
-     
+arg_level(_) -> erlang:error(bad_compression_level).
+
 arg_strategy(filtered) ->     ?Z_FILTERED;
 arg_strategy(huffman_only) -> ?Z_HUFFMAN_ONLY;
 arg_strategy(rle) -> ?Z_RLE;
 arg_strategy(default) ->      ?Z_DEFAULT_STRATEGY;
-arg_strategy(_) -> erlang:error(badarg).
+arg_strategy(_) -> erlang:error(bad_compression_strategy).
 
 arg_method(deflated) -> ?Z_DEFLATED;
-arg_method(_) -> erlang:error(badarg).
+arg_method(_) -> erlang:error(bad_compression_method).
+
+arg_eos_behavior(error) -> ?EOS_BEHAVIOR_ERROR;
+arg_eos_behavior(reset) -> ?EOS_BEHAVIOR_RESET;
+arg_eos_behavior(cut) -> ?EOS_BEHAVIOR_CUT;
+arg_eos_behavior(_) -> erlang:error(bad_eos_behavior).
 
 -spec arg_bitsz(zwindowbits()) -> zwindowbits().
 arg_bitsz(Bits) when is_integer(Bits) andalso
-		     ((8 =< Bits andalso Bits < 48) orelse
-		      (-15 =< Bits andalso Bits =< -8)) ->
+                     ((8 =< Bits andalso Bits < 48) orelse
+                      (-15 =< Bits andalso Bits =< -8)) ->
     Bits;
-arg_bitsz(_) -> erlang:error(badarg).
+arg_bitsz(_) -> erlang:error(bad_windowbits).
 
 -spec arg_mem(zmemlevel()) -> zmemlevel().
 arg_mem(Level) when is_integer(Level), 1 =< Level, Level =< 9 -> Level;
-arg_mem(_) -> erlang:error(badarg).
-
-call(Z, Cmd, Arg) ->
-    try port_control(Z, Cmd, Arg) of
-	[0|Res] -> list_to_atom(Res);
-	[1|Res] ->
-	    flush(Z),
-	    erlang:error(list_to_atom(Res));
-	[2,A,B,C,D] ->
-	    (A bsl 24)+(B bsl 16)+(C bsl 8)+D;
-	[3,A,B,C,D] ->
-	    erlang:error({need_dictionary,(A bsl 24)+(B bsl 16)+(C bsl 8)+D});
-	[4, _, _, _, _] ->
-	    inflate_has_more
-    catch 
-	error:badarg -> %% Rethrow loses port_control from stacktrace.
-	    erlang:error(badarg)
-    end.
+arg_mem(_) -> erlang:error(bad_memlevel).
 
-reverse(X) ->
-    reverse(X, []).
+-spec enqueue_input(Z, IOData) -> ok when
+      Z :: zstream(),
+      IOData :: iodata().
+enqueue_input(Z, IOData) ->
+    enqueue_input_1(Z, erlang:iolist_to_iovec(IOData)).
+
+enqueue_input_1(_Z, []) ->
+    ok;
+enqueue_input_1(Z, IOVec) ->
+    case enqueue_nif(Z, IOVec) of
+        {continue, Remainder} -> enqueue_input_1(Z, Remainder);
+        ok -> ok
+    end.
 
-reverse([H|T], Y) ->
-    reverse(T, [H|Y]);
-reverse([], X) -> 
-    X.
+enqueue_nif(_Z, _IOVec) ->
+    erlang:nif_error(undef).
diff --git a/erts/start_scripts/Makefile b/erts/start_scripts/Makefile
index 20fea99016..e730422ed8 100644
--- a/erts/start_scripts/Makefile
+++ b/erts/start_scripts/Makefile
@@ -171,7 +171,6 @@ $(ERL_TOP)/bin/no_dot_erlang.script:
 	  $(ERLC) $(SCRIPT_PATH) +no_warn_sasl +otp_build +no_dot_erlang -o $@ $(SS_ROOT)/no_dot_erlang.rel )
 
 ## Special target used from system/build/Makefile for source code release bootstrap.
-## Add no_dot_erlang after next release
 bootstrap_scripts: $(SS_ROOT)/start_clean.rel
 	$(V_at)$(INSTALL_DIR) $(TESTROOT)/bin
 	$(V_at)$(INSTALL_DIR) $(SS_TMP)
@@ -181,6 +180,10 @@ bootstrap_scripts: $(SS_ROOT)/start_clean.rel
 	$(V_at)( cd $(SS_TMP) && \
 	  $(ERLC) $(BOOTSTRAP_SCRIPT_PATH) +otp_build +no_module_tests \
 	    -o $(TESTROOT)/bin/start_clean.script $(SS_ROOT)/start_clean.rel )
+	$(V_at)( cd $(SS_TMP) && \
+	  $(ERLC) $(BOOTSTRAP_SCRIPT_PATH) +otp_build +no_module_tests \
+	    -o $(TESTROOT)/bin/no_dot_erlang.script $(SS_ROOT)/no_dot_erlang.rel )
+
 
 clean:
 	$(V_at)$(RM) $(REL_SCRIPTS) $(INSTALL_SCRIPTS)
diff --git a/erts/test/erlexec_SUITE.erl b/erts/test/erlexec_SUITE.erl
index 44d7f63387..db993abe52 100644
--- a/erts/test/erlexec_SUITE.erl
+++ b/erts/test/erlexec_SUITE.erl
@@ -59,7 +59,7 @@ otp_8209(Config) when is_list(Config) ->
     {ok,[[PName]]} = init:get_argument(progname),
     SNameS = "erlexec_test_01",
     SName = list_to_atom(SNameS++"@"++
-			 hd(tl(string:tokens(atom_to_list(node()),"@")))),
+			 hd(tl(string:lexemes(atom_to_list(node()),"@")))),
     Cmd = PName ++ " dummy_param -sname "++SNameS++" -setcookie "++
 	atom_to_list(erlang:get_cookie()),
     open_port({spawn,Cmd},[]),
@@ -75,7 +75,7 @@ cleanup_node(SNameS,0) ->
     {error, {would_not_die,list_to_atom(SNameS)}};
 cleanup_node(SNameS,N) ->
     SName = list_to_atom(SNameS++"@"++
-			 hd(tl(string:tokens(atom_to_list(node()),"@")))),
+			 hd(tl(string:lexemes(atom_to_list(node()),"@")))),
     case rpc:call(SName,init,stop,[]) of
 	{badrpc,_} ->
 	    ok;
@@ -322,7 +322,7 @@ zdbbl_dist_buf_busy_limit(Config) when is_list(Config) ->
     {ok,[[PName]]} = init:get_argument(progname),
     SNameS = "erlexec_test_02",
     SName = list_to_atom(SNameS++"@"++
-                         hd(tl(string:tokens(atom_to_list(node()),"@")))),
+                         hd(tl(string:lexemes(atom_to_list(node()),"@")))),
     Cmd = PName ++ " -sname "++SNameS++" -setcookie "++
         atom_to_list(erlang:get_cookie()) ++
 	" +zdbbl " ++ integer_to_list(LimKB),
@@ -400,7 +400,7 @@ emu_args(CmdLineArgs) ->
     {ok,[[Erl]]} = init:get_argument(progname),
     EmuCL = os:cmd(Erl ++ " -emu_args_exit " ++ CmdLineArgs),
     io:format("EmuCL = ~ts", [EmuCL]),
-    split_emu_clt(string:tokens(EmuCL, [$ ,$\t,$\n,$\r])).
+    split_emu_clt(string:lexemes(EmuCL, [$ ,$\t,$\n,$\r])).
 
 split_emu_clt(EmuCLT) ->
     split_emu_clt(EmuCLT, [], [], [], emu).
diff --git a/erts/test/install_SUITE.erl b/erts/test/install_SUITE.erl
index d6c6d6f30e..324b398caa 100644
--- a/erts/test/install_SUITE.erl
+++ b/erts/test/install_SUITE.erl
@@ -580,7 +580,7 @@ end_per_testcase(_Case, _Config) ->
     ok.
 
 make_dirs(Root, Suffix) ->
-    do_make_dirs(Root, string:tokens(Suffix, [$/])).
+    do_make_dirs(Root, string:lexemes(Suffix, [$/])).
 
 do_make_dirs(_Root, []) ->
     "";
@@ -709,4 +709,4 @@ join("") ->
 join([""|Ds]) ->
     join(Ds);
 join([D|Ds]) ->
-    "/" ++ string:strip(D, both, $/) ++ join(Ds).
+    "/" ++ string:trim(D, both, [$/]) ++ join(Ds).
diff --git a/erts/test/nt_SUITE.erl b/erts/test/nt_SUITE.erl
index 624e5484ba..3081b58835 100644
--- a/erts/test/nt_SUITE.erl
+++ b/erts/test/nt_SUITE.erl
@@ -117,7 +117,7 @@ wait_for_node(Name) ->
     do_wait_for_it(FullName,30).
 
 make_full_name(Name) ->
-    [_,Suffix] = string:tokens(atom_to_list(node()),"@"),
+    [_,Suffix] = string:lexemes(atom_to_list(node()),"@"),
     list_to_atom(Name ++ "@" ++ Suffix).
 
 
@@ -171,7 +171,7 @@ service_env(Config) when is_list(Config) ->
                     ["ERLSRV_SERVICE_NAME"]),
     "erlsrv.exe" = filename:basename(
                      hd(
-                       string:tokens(
+                       string:lexemes(
                          rpc:call(make_full_name(Name),
                                   os,
                                   getenv,
diff --git a/erts/test/otp_SUITE.erl b/erts/test/otp_SUITE.erl
index 54fcfd935f..3abe45c141 100644
--- a/erts/test/otp_SUITE.erl
+++ b/erts/test/otp_SUITE.erl
@@ -336,7 +336,7 @@ not_recommended_calls(Config, Apps0, MFA) ->
                 _ ->
                     AppStrings = [atom_to_list(A) || A <- SkippedApps],
                     Mess = io_lib:format("Application(s) not present: ~s\n",
-                                         [string:join(AppStrings, ", ")]),
+                                         [lists:join(", ", AppStrings)]),
                     {comment, Mess}
             end;
         _ ->
@@ -463,7 +463,7 @@ runtime_dependencies(Config) ->
 have_rdep(_App, [], _Dep) ->
     false;
 have_rdep(App, [RDep | RDeps], Dep) ->		    
-    [AppStr, _VsnStr] = string:tokens(RDep, "-"),
+    [AppStr, _VsnStr] = string:lexemes(RDep, "-"),
     case Dep == list_to_atom(AppStr) of
         true ->
             io:format("~p -> ~s~n", [App, RDep]),
diff --git a/erts/test/run_erl_SUITE.erl b/erts/test/run_erl_SUITE.erl
index fe1ccba1e2..08edd930b4 100644
--- a/erts/test/run_erl_SUITE.erl
+++ b/erts/test/run_erl_SUITE.erl
@@ -255,7 +255,7 @@ do_run_erl(Config, Case, Opt) ->
     
     net_kernel:monitor_nodes(true),
     open_port({spawn,Cmd}, []),
-    [_,Host] = string:tokens(atom_to_list(node()), "@"),
+    [_,Host] = string:lexemes(atom_to_list(node()), "@"),
     Node = list_to_atom(NodeName++"@"++Host),
 
     receive
diff --git a/erts/test/system_smoke.spec b/erts/test/system_smoke.spec
index 99092c1dab..bcb727b6d9 100644
--- a/erts/test/system_smoke.spec
+++ b/erts/test/system_smoke.spec
@@ -1,4 +1,3 @@
-{suites,"../system_test",[ethread_SUITE]}.
 {cases,"../system_test",otp_SUITE,
  [undefined_functions,
   deprecated_not_in_obsolete,
diff --git a/erts/test/upgrade_SUITE.erl b/erts/test/upgrade_SUITE.erl
index a5639d927d..31ceb06314 100644
--- a/erts/test/upgrade_SUITE.erl
+++ b/erts/test/upgrade_SUITE.erl
@@ -287,7 +287,7 @@ create_relfile(Node,CreateDir,RelName0,RelVsn) ->
 			 true ->
 			     case filename:split(Path) -- SplitLibDir of
 				 [AppVsn,"ebin"] ->
-				     case string:tokens(AppVsn,"-") of
+				     case string:lexemes(AppVsn,"-") of
 					 [AppStr,Vsn] ->
 					     App = list_to_atom(AppStr),
 					     case lists:member(App,Exclude) of
diff --git a/erts/test/z_SUITE.erl b/erts/test/z_SUITE.erl
index d474c71c4f..cd7a894eb5 100644
--- a/erts/test/z_SUITE.erl
+++ b/erts/test/z_SUITE.erl
@@ -132,22 +132,9 @@ core_search_conf(RunByTS, DBTop, XDir) ->
 
 file_inspect(#core_search_conf{file = File}, Core) ->
     FRes0 = os:cmd(File ++ " " ++ Core),
-    FRes = case string:str(FRes0, Core) of
-	       0 ->
-		   FRes0;
-	       S ->
-		   L = length(FRes0),
-		   E = length(Core),
-		   case S of
-		       1 ->
-			   lists:sublist(FRes0, E+1, L+1);
-		       _ ->
-			   lists:sublist(FRes0, 1, S-1)
-			       ++
-			       " "
-			       ++
-			       lists:sublist(FRes0, E+1, L+1)
-		   end
+    FRes = case string:split(FRes0, Core) of
+	       [S1] -> S1;
+	       [S1,S2] -> lists:flatten(S1 ++ " " ++ S2)
 	   end,
     case re:run(FRes, "text|ascii", [caseless,{capture,none}]) of
 	match ->
@@ -194,9 +181,6 @@ mod_time_list(F) ->
 	    [0,0,0,0,0,0]
     end.
 
-str_strip(S) ->
-    string:strip(string:strip(string:strip(S), both, $\n), both, $\r).
-
 dump_core(#core_search_conf{ cerl = false }, _) ->
     ok;
 dump_core(_, {ignore, _Core}) ->
@@ -232,7 +216,7 @@ format_core(#core_search_conf{file = false}, Core, Ignore) ->
     io:format("  ~s~s " ++ time_fstr() ++ "~s~n",
 	      [Ignore, Core] ++ mod_time_list(Core));
 format_core(#core_search_conf{file = File}, Core, Ignore) ->
-    FRes = str_strip(os:cmd(File ++ " " ++ Core)),
+    FRes = string:trim(os:cmd(File ++ " " ++ Core)),
     case catch re:run(FRes, Core, [caseless,{capture,none}]) of
 	match ->
 	    io:format("  ~s~s " ++ time_fstr() ++ "~n",
diff --git a/erts/vsn.mk b/erts/vsn.mk
index 8ed3993177..a788b2e491 100644
--- a/erts/vsn.mk
+++ b/erts/vsn.mk
@@ -18,7 +18,7 @@
 # %CopyrightEnd%
 # 
 
-VSN = 9.0.4
+VSN = 9.1.3
 
 # Port number 4365 in 4.2
 # Port number 4366 in 4.3
diff --git a/lib/asn1/doc/src/fascicules.xml b/lib/asn1/doc/src/fascicules.xml
deleted file mode 100644
index 837b4f57f4..0000000000
--- a/lib/asn1/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/asn1/doc/src/notes.xml b/lib/asn1/doc/src/notes.xml
index 5399528271..ae6660c143 100644
--- a/lib/asn1/doc/src/notes.xml
+++ b/lib/asn1/doc/src/notes.xml
@@ -32,6 +32,24 @@
   <p>This document describes the changes made to the asn1 application.</p>
 
 
+<section><title>Asn1 5.0.3</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Compiling an ASN.1 module using the option {n2n,
+	    EnumTypeName} when EnumTypeName contains a hypen like for
+	    example Cause-Misc caused syntax errors when compiling
+	    the generated Erlang code. This is now corrected.</p>
+          <p>
+	    Own Id: OTP-14495 Aux Id: ERL-437 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Asn1 5.0.2</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/asn1/src/asn1ct_check.erl b/lib/asn1/src/asn1ct_check.erl
index 83d12600b7..321980e5e4 100644
--- a/lib/asn1/src/asn1ct_check.erl
+++ b/lib/asn1/src/asn1ct_check.erl
@@ -1576,13 +1576,15 @@ printable_string_1(#'Externalvaluereference'{value=Type}) ->
 printable_string_1({Atom,Line}) when is_atom(Atom), is_integer(Line) ->
     q(Atom);
 printable_string_1({object,definedsyntax,L}) ->
-    q(string:join([printable_string_1(Item) || Item <- L], " "));
+    Str = lists:join($\s, [printable_string_1(Item) || Item <- L]),
+    q(lists:flatten(Str));
 printable_string_1([_|_]=Def) ->
     case lists:all(fun is_integer/1, Def) of
 	true ->
 	    lists:flatten(io_lib:format("~p", [Def]));
 	false ->
-	    q(string:join([printable_string_1(Item) || Item <- Def], " "))
+            Str = lists:join($\s, [printable_string_1(Item) || Item <- Def]),
+            q(lists:flatten(Str))
     end;
 printable_string_1(Def) ->
     lists:flatten(io_lib:format("~p", [Def])).
diff --git a/lib/asn1/src/asn1ct_gen.erl b/lib/asn1/src/asn1ct_gen.erl
index 806f8420ec..84c7f39d55 100644
--- a/lib/asn1/src/asn1ct_gen.erl
+++ b/lib/asn1/src/asn1ct_gen.erl
@@ -796,7 +796,7 @@ result_line(NoOkWrapper, Items) ->
 result_line_1([SingleItem]) ->
     SingleItem;
 result_line_1(Items) ->
-    ["{",string:join(Items, ","),"}"].
+    ["{",lists:join(",",Items),"}"].
 
 try_catch() ->
     ["  catch",nl,
@@ -943,7 +943,7 @@ open_hrl(OutFile,Module) ->
 
 hrl_protector(OutFile) ->
     BaseName = filename:basename(OutFile),
-    P = "_" ++ string:to_upper(BaseName) ++ "_HRL_",
+    P = "_" ++ string:uppercase(BaseName) ++ "_HRL_",
     [if
 	 $A =< C, C =< $Z -> C;
 	 $a =< C, C =< $a -> C;
diff --git a/lib/asn1/src/asn1rtt_real_common.erl b/lib/asn1/src/asn1rtt_real_common.erl
index 3a79209015..81c1f54d74 100644
--- a/lib/asn1/src/asn1rtt_real_common.erl
+++ b/lib/asn1/src/asn1rtt_real_common.erl
@@ -125,7 +125,7 @@ encode_real(_C, {_,Base,_}) ->
 encode_real(C, Real) when is_list(Real) ->
     %% The Real string may come in as a NR1, NR2 or NR3 string.
     {Mantissa, Exponent} =
-	case string:tokens(Real,"Ee") of
+	case string:lexemes(Real,"Ee") of
 	    [NR2] ->
 		{NR2,0};
 	    [NR3MB,NR3E] ->
@@ -144,7 +144,7 @@ encode_real(C, Real) when is_list(Real) ->
 		NewMan = remove_trailing_zeros(Dec),
 		{NewMan,length(ZeroDecimal(NewMan))};
 	    _ ->
-		case string:tokens(Mantissa,",.") of
+		case string:lexemes(Mantissa,",.") of
 		    [Num] -> %% No decimal-mark
 			{integer_to_list(list_to_integer(Num)),0};
 		    [Num,Dec] ->
diff --git a/lib/asn1/test/asn1_SUITE.erl b/lib/asn1/test/asn1_SUITE.erl
index c61cecca4c..b98a704e28 100644
--- a/lib/asn1/test/asn1_SUITE.erl
+++ b/lib/asn1/test/asn1_SUITE.erl
@@ -266,7 +266,7 @@ replace_path(PathA, PathB) ->
     true = code:add_patha(PathB).
 
 join(Rule, Opts) ->
-    string:join([atom_to_list(Rule)|lists:map(fun atom_to_list/1, Opts)], "_").
+    lists:join("_", [atom_to_list(Rule)|lists:map(fun atom_to_list/1, Opts)]).
 
 %%------------------------------------------------------------------------------
 %% Test cases
diff --git a/lib/asn1/test/testUniqueObjectSets.erl b/lib/asn1/test/testUniqueObjectSets.erl
index 476d190651..cabdb44a0c 100644
--- a/lib/asn1/test/testUniqueObjectSets.erl
+++ b/lib/asn1/test/testUniqueObjectSets.erl
@@ -60,7 +60,7 @@ main(CaseDir, Rule, Opts) ->
     Objs = [gen_obj(I) || {I,_,_} <- D1],
     DupObjs = [gen_dup_obj(I, T) || {I,T,_} <- D1],
     DupObjRefs0 = [gen_dup_obj_refs(I) || {I,_,_} <- D1],
-    DupObjRefs = string:join(DupObjRefs0, " |\n"),
+    DupObjRefs = lists:join(" |\n", DupObjRefs0),
     Asn1Spec = 'UniqueObjectSets',
     A = ["UniqueObjectSets DEFINITIONS AUTOMATIC TAGS ::=\n",
 	 "BEGIN\n\n",
diff --git a/lib/asn1/test/test_modified_x420.erl b/lib/asn1/test/test_modified_x420.erl
index 6cd9e0e33b..15f7c70978 100644
--- a/lib/asn1/test/test_modified_x420.erl
+++ b/lib/asn1/test/test_modified_x420.erl
@@ -38,7 +38,7 @@ read_pem(File) ->
 
 
 extract_base64(Binary) ->
-    extract_base64_lines(string:tokens(binary_to_list(Binary), "\n")).
+    extract_base64_lines(string:lexemes(binary_to_list(Binary), "\n")).
 
 extract_base64_lines(["-----BEGIN"++_ | Lines]) ->
     take_base64_lines(Lines, _Acc = []);
diff --git a/lib/asn1/vsn.mk b/lib/asn1/vsn.mk
index 5900f3037e..ef83b9e3dc 100644
--- a/lib/asn1/vsn.mk
+++ b/lib/asn1/vsn.mk
@@ -1 +1 @@
-ASN1_VSN = 5.0.2
+ASN1_VSN = 5.0.3
diff --git a/lib/common_test/doc/src/Makefile b/lib/common_test/doc/src/Makefile
index faa2d58a06..b60b04c4ae 100644
--- a/lib/common_test/doc/src/Makefile
+++ b/lib/common_test/doc/src/Makefile
@@ -57,9 +57,7 @@ XML_REF3_FILES = ct.xml \
         ct_testspec.xml
 XML_REF6_FILES = common_test_app.xml
 
-XML_PART_FILES = part.xml 
-#	part_notes.xml \
-#	part_notes_history.xml
+XML_PART_FILES = part.xml
 
 XML_CHAPTER_FILES = \
 	basics_chapter.xml \
@@ -77,7 +75,7 @@ XML_CHAPTER_FILES = \
 	ct_hooks_chapter.xml \
 	dependencies_chapter.xml \
 	notes.xml \
-	notes_history.xml 
+	notes_history.xml
 
 BOOK_FILES = book.xml
 
@@ -111,10 +109,10 @@ SPECS_FILES = $(XML_REF3_FILES:%.xml=$(SPECDIR)/specs_%.xml)
 TOP_SPECS_FILE = specs.xml
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 SPECS_FLAGS = -I../../include -I../../../snmp/include \
 	-I../../../kernel/include
 
@@ -131,14 +129,14 @@ $(TOP_PDF_FILE): $(XML_FILES)
 
 pdf: $(TOP_PDF_FILE)
 
-html: gifs $(HTML_REF_MAN_FILE) 
+html: gifs $(HTML_REF_MAN_FILE)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
 man: $(MAN6_FILES) $(MAN3_FILES) $(MAN1_FILES)
 
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
@@ -147,11 +145,11 @@ clean clean_docs:
 	rm -f $(MAN6DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
 	rm -f $(SPECDIR)/*
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 
diff --git a/lib/common_test/doc/src/fascicules.xml b/lib/common_test/doc/src/fascicules.xml
deleted file mode 100644
index c4a28a699a..0000000000
--- a/lib/common_test/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-   <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/common_test/doc/src/notes.xml b/lib/common_test/doc/src/notes.xml
index 37a1846160..b039023e0f 100644
--- a/lib/common_test/doc/src/notes.xml
+++ b/lib/common_test/doc/src/notes.xml
@@ -33,6 +33,21 @@
     <file>notes.xml</file>
     </header>
 
+<section><title>Common_Test 1.15.2</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Common_Test 1.15.1</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/common_test/doc/src/part_notes.xml b/lib/common_test/doc/src/part_notes.xml
deleted file mode 100644
index 360c535e96..0000000000
--- a/lib/common_test/doc/src/part_notes.xml
+++ /dev/null
@@ -1,41 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Common Test</title>
-    <prepared>Peter Andersson</prepared>
-    <docno></docno>
-    <date>2007-12-01</date>
-    <rev></rev>
-    <file>part_notes.xml</file>
-  </header>
-  <description>
-    <p>Common Test - tool for automated testing, based on the Erlang/OTP Test Server.</p>
-    <p>For information about older versions see
-       <url href="part_notes_history_frame.html">release notes
-       history</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
-
diff --git a/lib/common_test/doc/src/part_notes_history.xml b/lib/common_test/doc/src/part_notes_history.xml
deleted file mode 100644
index d13bb858db..0000000000
--- a/lib/common_test/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Common Test</title>
-    <prepared>Peter Andersson</prepared>
-    <docno></docno>
-    <date>2007-12-01</date>
-    <rev></rev>
-    <file>part_notes.xml</file>
-  </header>
-  <include file="notes_history"></include>
-</part>
-
-
diff --git a/lib/common_test/src/common_test.app.src b/lib/common_test/src/common_test.app.src
index 430a4fa2fb..0aa4aacf16 100644
--- a/lib/common_test/src/common_test.app.src
+++ b/lib/common_test/src/common_test.app.src
@@ -92,7 +92,7 @@
     "sasl-2.4.2",
     "snmp-5.1.2",
     "ssh-4.0",
-    "stdlib-2.5",
+    "stdlib-3.4",
     "syntax_tools-1.7",
     "tools-2.8",
     "xmerl-1.3.8"
diff --git a/lib/common_test/src/ct.erl b/lib/common_test/src/ct.erl
index 19b0ee20fe..875301a8b2 100644
--- a/lib/common_test/src/ct.erl
+++ b/lib/common_test/src/ct.erl
@@ -848,7 +848,8 @@ capture_get([ExclCat | ExclCategories]) ->
     Strs = test_server:capture_get(),
     CatsStr = [atom_to_list(ExclCat) | 
 	       [[$| | atom_to_list(EC)] || EC <- ExclCategories]],
-    {ok,MP} = re:compile("<div class=\"(" ++ lists:flatten(CatsStr) ++ ")\">.*"),
+    {ok,MP} = re:compile("<div class=\"(" ++ lists:flatten(CatsStr) ++ ")\">.*",
+                         [unicode]),
     lists:flatmap(fun(Str) ->
 			  case re:run(Str, MP) of
 			      {match,_} -> [];
@@ -1029,7 +1030,7 @@ make_and_load(Dir, Suite) ->
     EnvInclude =
 	case os:getenv("CT_INCLUDE_PATH") of
 	    false -> [];
-	    CtInclPath -> string:tokens(CtInclPath, [$:,$ ,$,])
+	    CtInclPath -> string:lexemes(CtInclPath, [$:,$ ,$,])
 	end,
     StartInclude =
 	case init:get_argument(include) of
diff --git a/lib/common_test/src/ct_config.erl b/lib/common_test/src/ct_config.erl
index d48ae830bb..b3f983dd46 100644
--- a/lib/common_test/src/ct_config.erl
+++ b/lib/common_test/src/ct_config.erl
@@ -659,7 +659,7 @@ decrypt_config_file(EncryptFileName, TargetFileName, {key,Key}) ->
 get_crypt_key_from_file(File) ->
     case file:read_file(File) of
 	{ok,Bin} ->
-	    case catch string:tokens(binary_to_list(Bin), [$\n,$\r]) of
+	    case catch string:lexemes(binary_to_list(Bin), [$\n,$\r]) of
 		[Key] ->
 		    Key;
 		_ ->
@@ -693,7 +693,7 @@ get_crypt_key_from_file() ->
 	noent ->
 	    Result;
 	_ ->
-	    case catch string:tokens(binary_to_list(Result), [$\n,$\r]) of
+	    case catch string:lexemes(binary_to_list(Result), [$\n,$\r]) of
 		[Key] ->
 		    io:format("~nCrypt key file: ~ts~n", [FullName]),
 		    Key;
diff --git a/lib/common_test/src/ct_config_plain.erl b/lib/common_test/src/ct_config_plain.erl
index e72b55971b..e77381d7cf 100644
--- a/lib/common_test/src/ct_config_plain.erl
+++ b/lib/common_test/src/ct_config_plain.erl
@@ -106,7 +106,7 @@ read_config_terms1({done,{eof,EL},_}, L, _, _) ->
 read_config_terms1({done,{error,Info,EL},_}, L, _, _) ->
     {error,{Info,{L,EL}}};
 read_config_terms1({more,_}, L, Terms, Rest) ->
-    case string:tokens(Rest, [$\n,$\r,$\t]) of
+    case string:lexemes(Rest, [$\n,$\r,$\t]) of
 	[] ->
 	    lists:reverse(Terms);
 	_ ->
diff --git a/lib/common_test/src/ct_conn_log_h.erl b/lib/common_test/src/ct_conn_log_h.erl
index cf0a228e1b..3e83020f45 100644
--- a/lib/common_test/src/ct_conn_log_h.erl
+++ b/lib/common_test/src/ct_conn_log_h.erl
@@ -224,7 +224,7 @@ now_to_time({_,_,MicroS}=Now) ->
     {calendar:now_to_local_time(Now),MicroS}.
 
 pretty_head({{{Y,Mo,D},{H,Mi,S}},MicroS},ConnMod,Text0) ->
-    Text = string:to_upper(atom_to_list(ConnMod) ++ Text0),
+    Text = string:uppercase(atom_to_list(ConnMod) ++ Text0),
     io_lib:format("= ~s ==== ~s-~s-~w::~s:~s:~s,~s ",
 		  [Text,t(D),month(Mo),Y,t(H),t(Mi),t(S),
 		   micro2milli(MicroS)]).
@@ -275,7 +275,7 @@ pad0(N,Str) ->
     lists:duplicate(N-M,$0) ++ Str.
 
 pad_char_end(N,Str,Char) ->
-    case length(lists:flatten(Str)) of
+    case string:length(Str) of
 	M when M<N -> Str ++ lists:duplicate(N-M,Char);
 	_ -> Str
     end.
diff --git a/lib/common_test/src/ct_framework.erl b/lib/common_test/src/ct_framework.erl
index 6066470233..7f7e9ae6f9 100644
--- a/lib/common_test/src/ct_framework.erl
+++ b/lib/common_test/src/ct_framework.erl
@@ -921,9 +921,10 @@ error_notification(Mod,Func,_Args,{Error,Loc}) ->
 	      end,
     ErrorStr = case ErrorSpec of
 		 {badmatch,Descr} ->
-		     Descr1 = lists:flatten(io_lib:format("~tP",[Descr,10])),
-		     if length(Descr1) > 50 ->
-			     Descr2 = string:substr(Descr1,1,50),
+                     Descr1 = io_lib:format("~tP",[Descr,10]),
+                     DescrLength = string:length(Descr1),
+                     if DescrLength > 50 ->
+			     Descr2 = string:slice(Descr1,0,50),
 			     io_lib:format("{badmatch,~ts...}",[Descr2]);
 			true ->
 			     io_lib:format("{badmatch,~ts}",[Descr1])
diff --git a/lib/common_test/src/ct_ftp.erl b/lib/common_test/src/ct_ftp.erl
index 8effb06e7e..ee4a6a6c45 100644
--- a/lib/common_test/src/ct_ftp.erl
+++ b/lib/common_test/src/ct_ftp.erl
@@ -285,7 +285,7 @@ init(KeyOrName,{IP,Port},{Username,Password}) ->
 	{ok,FtpPid} ->
 	    log(heading(init,KeyOrName), 
 		"Opened ftp connection:\nIP: ~tp\nUsername: ~tp\nPassword: ~p\n",
-		[IP,Username,lists:duplicate(length(Password),$*)]),
+		[IP,Username,lists:duplicate(string:length(Password),$*)]),
 	    {ok,FtpPid,#state{ftp_pid=FtpPid,target_name=KeyOrName}};
 	Error ->
 	    Error
diff --git a/lib/common_test/src/ct_logs.erl b/lib/common_test/src/ct_logs.erl
index ba7660fe6a..028c265420 100644
--- a/lib/common_test/src/ct_logs.erl
+++ b/lib/common_test/src/ct_logs.erl
@@ -1188,26 +1188,23 @@ print_style(Fd, IoFormat, StyleSheet) ->
     case file:read_file(StyleSheet) of
 	{ok,Bin} ->
 	    Str = b2s(Bin,encoding(StyleSheet)),
-	    Pos0 = case string:str(Str,"<style>") of
-		       0 -> string:str(Str,"<STYLE>");
-		       N0 -> N0
-		   end,
-	    Pos1 = case string:str(Str,"</style>") of
-		       0 -> string:str(Str,"</STYLE>");
-		       N1 -> N1
-		   end,
-	    if (Pos0 == 0) and (Pos1 /= 0) ->
-		    print_style_error(Fd, IoFormat,
-				      StyleSheet, missing_style_start_tag);
-	       (Pos0 /= 0) and (Pos1 == 0) ->
-		    print_style_error(Fd, IoFormat,
-				      StyleSheet,missing_style_end_tag);
-	       Pos0 /= 0 ->
-		    Style = string:sub_string(Str,Pos0,Pos1+7),
-		    IoFormat(Fd,"~ts\n",[Style]);
-	       Pos0 == 0 ->
-		    IoFormat(Fd,"<style>\n~ts</style>\n",[Str])
-	    end;
+            case re:run(Str,"<style>.*</style>",
+                        [dotall,caseless,{capture,all,list}]) of
+                nomatch ->
+                    case re:run(Str,"</?style>",[caseless,{capture,all,list}]) of
+                        nomatch ->
+                            IoFormat(Fd,"<style>\n~ts</style>\n",[Str]);
+                        {match,["</"++_]} ->
+                            print_style_error(Fd, IoFormat,
+                                              StyleSheet,
+                                              missing_style_start_tag);
+                        {match,[_]} ->
+                            print_style_error(Fd, IoFormat,
+                                              StyleSheet,missing_style_end_tag)
+                    end;
+                {match,[Style]} ->
+                    IoFormat(Fd,"~ts\n",[Style])
+            end;
 	{error,Reason} ->
 	    print_style_error(Fd,IoFormat,StyleSheet,Reason)
     end.
@@ -1414,9 +1411,9 @@ make_one_index_entry1(SuiteName, Link, Label, Success, Fail, UserSkip, AutoSkip,
     {Lbl,Timestamp,Node,AllInfo} =
 	case All of
 	    {true,OldRuns} -> 
-		[_Prefix,NodeOrDate|_] = string:tokens(Link,"."),
-		Node1 = case string:chr(NodeOrDate,$@) of
-			    0 -> "-";
+		[_Prefix,NodeOrDate|_] = string:lexemes(Link,"."),
+		Node1 = case string:find(NodeOrDate,[$@]) of
+			    nomatch -> "-";
 			    _ -> NodeOrDate
 			end,
 
@@ -1523,7 +1520,7 @@ not_built(BaseName,_LogDir,_All,Missing) ->
     %%            Top.ObjDir | Top.ObjDir.suites | Top.ObjDir.Suite | 
     %%            Top.ObjDir.Suite.cases | Top.ObjDir.Suite.Case    
     Failed =
-	case string:tokens(BaseName,".") of
+	case string:lexemes(BaseName,".") of
 	    [T,O] when is_list(T) ->		% all under Top.ObjDir
 		locate_info({T,O},all,Missing);
 	    [T,O,"suites"] ->
@@ -2051,9 +2048,9 @@ sort_all_runs(Dirs) ->
     %% "YYYY-MM-DD_HH.MM.SS"
     lists:sort(fun(Dir1,Dir2) ->
 		       [SS1,MM1,HH1,Date1|_] =
-			   lists:reverse(string:tokens(Dir1,[$.,$_])),
+			   lists:reverse(string:lexemes(Dir1,[$.,$_])),
 		       [SS2,MM2,HH2,Date2|_] =
-			   lists:reverse(string:tokens(Dir2,[$.,$_])),
+			   lists:reverse(string:lexemes(Dir2,[$.,$_])),
 		       {Date1,HH1,MM1,SS1} > {Date2,HH2,MM2,SS2}
 	       end, Dirs).
 
@@ -2063,9 +2060,9 @@ sort_ct_runs(Dirs) ->
     lists:sort(
       fun(Dir1,Dir2) ->
 	      [SS1,MM1,DateHH1 | _] =
-		  lists:reverse(string:tokens(filename:dirname(Dir1),[$.])),
+		  lists:reverse(string:lexemes(filename:dirname(Dir1),[$.])),
 	      [SS2,MM2,DateHH2 | _] =
-		  lists:reverse(string:tokens(filename:dirname(Dir2),[$.])),
+		  lists:reverse(string:lexemes(filename:dirname(Dir2),[$.])),
 	      {DateHH1,MM1,SS1} =< {DateHH2,MM2,SS2}
       end, Dirs).
 
@@ -2211,27 +2208,15 @@ runentry(Dir, Totals={Node,Label,Logs,
 		    0 -> "-";
 		    N -> integer_to_list(N)
 		end,
-    StripExt = 
-	fun(File) ->
-		string:sub_string(File,1,
-				  length(File)-
-				      length(?logdir_ext)) ++ ", "
-	end,
-    Polish =  fun(S) -> case lists:reverse(S) of
-			    [32,$,|Rev] -> lists:reverse(Rev);
-			    [$,|Rev] -> lists:reverse(Rev);
-			    _ -> S
-			end 
-	      end,
-    TestNames = Polish(lists:flatten(lists:map(StripExt,Logs))),
+
+    RootNames = lists:map(fun(F) -> filename:rootname(F,?logdir_ext) end, Logs),
+    TestNames = lists:flatten(lists:join(", ", RootNames)),
     TestNamesTrunc =
-	if TestNames=="" -> 
-		"";
-	   length(TestNames) < ?testname_width ->
+	if length(TestNames) < ?testname_width ->
 		TestNames;
 	   true ->
-		Trunc = Polish(string:substr(TestNames,1,
-					     ?testname_width-3)),
+		Trunc = string:trim(string:slice(TestNames,0,?testname_width-3),
+                                    trailing,",\s"),
 		lists:flatten(io_lib:format("~ts...",[Trunc]))
 	end,
     TotMissingStr =
@@ -2374,7 +2359,7 @@ force_rename(From,To,Number) ->
 
 
 timestamp(Dir) ->
-    TsR = lists:reverse(string:tokens(Dir,".-_")),
+    TsR = lists:reverse(string:lexemes(Dir,".-_")),
     [S,Min,H,D,M,Y] = [list_to_integer(N) || N <- lists:sublist(TsR,6)],
     format_time({{Y,M,D},{H,Min,S}}).
 
@@ -2923,7 +2908,7 @@ cache_vsn() ->
 	    VSNfile = filename:join([EbinDir,"..","vsn.mk"]),
 	    case file:read_file(VSNfile) of
 		{ok,Bin} ->
-		    [_,VSN] = string:tokens(binary_to_list(Bin),[$=,$\n,$ ]),
+		    [_,VSN] = string:lexemes(binary_to_list(Bin),[$=,$\n,$ ]),
 		    VSN;
 		_ ->
 		    undefined
@@ -3320,7 +3305,7 @@ insert_javascript({tablesorter,TableName,
 			  end, [{"CTDateSorter",DateCols},
 				{"CTTextSorter",TextCols},
 				{"CTValSorter",ValCols}]))),
-    Headers1 = string:substr(Headers, 1, length(Headers)-2),
+    Headers1 = string:trim(Headers, trailing, ",\n"),
 
     ["<script type=\"text/javascript\">\n",
      "// Parser for date format, e.g: Wed Jul 4 2012 11:24:15\n",
diff --git a/lib/common_test/src/ct_master.erl b/lib/common_test/src/ct_master.erl
index 6e6d1879c2..44d3fb8f64 100644
--- a/lib/common_test/src/ct_master.erl
+++ b/lib/common_test/src/ct_master.erl
@@ -807,7 +807,7 @@ filter_accessible(InitOptions, Inaccessible)->
 
 start_nodes(InitOptions)->
     lists:foreach(fun({NodeName, Options})->
-	[NodeS,HostS]=string:tokens(atom_to_list(NodeName), "@"),
+	[NodeS,HostS]=string:lexemes(atom_to_list(NodeName), "@"),
 	Node=list_to_atom(NodeS),
 	Host=list_to_atom(HostS),
 	HasNodeStart = lists:keymember(node_start, 1, Options),
diff --git a/lib/common_test/src/ct_master_logs.erl b/lib/common_test/src/ct_master_logs.erl
index d8ecd641ed..fd92f73f63 100644
--- a/lib/common_test/src/ct_master_logs.erl
+++ b/lib/common_test/src/ct_master_logs.erl
@@ -297,7 +297,7 @@ sort_all_runs(Dirs) ->
     %% "YYYY-MM-DD_HH.MM.SS"
     KeyList =
 	lists:map(fun(Dir) ->
-			  case lists:reverse(string:tokens(Dir,[$.,$_])) of
+			  case lists:reverse(string:lexemes(Dir,[$.,$_])) of
 			      [SS,MM,HH,Date|_] ->
 				  {{Date,HH,MM,SS},Dir};
 			      _Other ->
@@ -312,18 +312,8 @@ runentry(Dir) ->
     {MasterStr,NodesStr} = 
 	case read_details_file(Dir) of
 	    {Master,Nodes} when is_list(Nodes) ->
-		[_,Host] = string:tokens(atom_to_list(Master),"@"),
-		NodesList = 
-		    lists:reverse(lists:map(fun(N) ->
-						    atom_to_list(N) ++ ", "
-					    end,Nodes)),
-		case NodesList of
-		    [N|NListR] ->
-			N1 = string:sub_string(N,1,length(N)-2),
-			{Host,lists:flatten(lists:reverse([N1|NListR]))};
-		    [] ->
-			{Host,""}
-		end;
+		[_,Host] = string:lexemes(atom_to_list(Master),"@"),
+                {Host,lists:concat(lists:join(", ",Nodes))};
 	    _Error ->
 		{"unknown",""}
 	end,
@@ -348,7 +338,7 @@ all_runs_header() ->
       xhtml("", "</tr></thead>\n<tbody>\n")]].
 
 timestamp(Dir) ->
-    [S,Min,H,D,M,Y|_] = lists:reverse(string:tokens(Dir,".-_")),
+    [S,Min,H,D,M,Y|_] = lists:reverse(string:lexemes(Dir,".-_")),
     [S1,Min1,H1,D1,M1,Y1] = [list_to_integer(N) || N <- [S,Min,H,D,M,Y]],
     format_time({{Y1,M1,D1},{H1,Min1,S1}}).
 
diff --git a/lib/common_test/src/ct_netconfc.erl b/lib/common_test/src/ct_netconfc.erl
index 2c4b97df20..29188a648e 100644
--- a/lib/common_test/src/ct_netconfc.erl
+++ b/lib/common_test/src/ct_netconfc.erl
@@ -1467,7 +1467,7 @@ decode_data(Other) ->
     {error,{unexpected_rpc_reply,Other}}.
 
 get_qualified_name(Tag) ->
-    case string:tokens(atom_to_list(Tag),":") of
+    case string:lexemes(atom_to_list(Tag),":") of
 	[TagStr] -> {[],TagStr};
 	[PrefixStr,TagStr] -> {PrefixStr,TagStr}
     end.
diff --git a/lib/common_test/src/ct_release_test.erl b/lib/common_test/src/ct_release_test.erl
index 551a7e06d7..4af9afb45b 100644
--- a/lib/common_test/src/ct_release_test.erl
+++ b/lib/common_test/src/ct_release_test.erl
@@ -817,7 +817,7 @@ get_runtime_deps([App|Apps],StartApps,Acc,Visited) ->
 	    RuntimeDeps =
 		lists:flatmap(
 		  fun(Str) ->
-			  [RuntimeAppStr,_] = string:tokens(Str,"-"),
+			  [RuntimeAppStr,_] = string:lexemes(Str,"-"),
 			  RuntimeApp = list_to_atom(RuntimeAppStr),
 			  case {lists:keymember(RuntimeApp,1,Acc),
 				lists:member(RuntimeApp,StartApps)} of
diff --git a/lib/common_test/src/ct_run.erl b/lib/common_test/src/ct_run.erl
index 14f28f9ca3..9436236719 100644
--- a/lib/common_test/src/ct_run.erl
+++ b/lib/common_test/src/ct_run.erl
@@ -147,7 +147,7 @@ script_start(Args) ->
 	    CTVsn =
 		case filename:basename(code:lib_dir(common_test)) of
 		    CTBase when is_list(CTBase) ->
-			case string:tokens(CTBase, "-") of
+			case string:lexemes(CTBase, "-") of
 			    ["common_test",Vsn] -> " v"++Vsn;
 			    _ -> ""
 			end
@@ -315,7 +315,7 @@ script_start1(Parent, Args) ->
 			{undefined,InclDirs};
 		    CtInclPath ->
 			AllInclDirs =
-			    string:tokens(CtInclPath,[$:,$ ,$,]) ++ InclDirs,
+			    string:lexemes(CtInclPath,[$:,$ ,$,]) ++ InclDirs,
 			application:set_env(common_test, include, AllInclDirs),
 			{undefined,AllInclDirs}
 		end;
@@ -1096,7 +1096,7 @@ run_test2(StartOpts) ->
 			application:set_env(common_test, include, InclDirs),
 			{undefined,InclDirs};
 		    CtInclPath ->
-			InclDirs1 = string:tokens(CtInclPath, [$:,$ ,$,]),
+			InclDirs1 = string:lexemes(CtInclPath, [$:,$ ,$,]),
 			AllInclDirs = InclDirs1++InclDirs,
 			application:set_env(common_test, include, AllInclDirs),
 			{undefined,AllInclDirs}
@@ -1482,7 +1482,7 @@ run_testspec2(TestSpec) ->
 		    false ->
 			Opts#opts.include;
 		    CtInclPath ->
-			EnvInclude = string:tokens(CtInclPath, [$:,$ ,$,]),
+			EnvInclude = string:lexemes(CtInclPath, [$:,$ ,$,]),
 			EnvInclude++Opts#opts.include
 		end,
 	    application:set_env(common_test, include, AllInclude),
diff --git a/lib/common_test/src/ct_slave.erl b/lib/common_test/src/ct_slave.erl
index 4188bd7c3b..61e6446df8 100644
--- a/lib/common_test/src/ct_slave.erl
+++ b/lib/common_test/src/ct_slave.erl
@@ -38,7 +38,8 @@
 
 -record(options, {username, password, boot_timeout, init_timeout,
 		  startup_timeout, startup_functions, monitor_master,
-		  kill_if_fail, erl_flags, env, ssh_port, ssh_opts}).
+		  kill_if_fail, erl_flags, env, ssh_port, ssh_opts,
+		  stop_timeout}).
 
 %%%-----------------------------------------------------------------
 %%% @spec start(Node) -> Result
@@ -198,6 +199,7 @@ start(Host, Node, Opts) ->
 	    end
     end.
 
+%%%-----------------------------------------------------------------
 %%% @spec stop(Node) -> Result
 %%%   Node = atom()
 %%%   Result = {ok, NodeName} |
@@ -205,16 +207,41 @@ start(Host, Node, Opts) ->
 %%%   Reason = not_started |
 %%%            not_connected |
 %%%            stop_timeout
-
 %%%   NodeName = atom()
 %%% @doc Stops the running Erlang node with name <code>Node</code> on
 %%% the localhost.
 stop(Node) ->
     stop(gethostname(), Node).
 
-%%% @spec stop(Host, Node) -> Result
+%%%-----------------------------------------------------------------
+%%% @spec stop(HostOrNode, NodeOrOpts) -> Result
+%%%   HostOrNode = atom()
+%%%   NodeOrOpts = atom() | list()
+%%%   Result = {ok, NodeName} |
+%%%            {error, Reason, NodeName}
+%%%   Reason = not_started |
+%%%            not_connected |
+%%%            stop_timeout
+%%%   NodeName = atom()
+%%% @doc Stops the running Erlang node with default options on a specified
+%%% host, or on the local host with specified options. That is,
+%%% the call is interpreted as <code>stop(Host, Node)</code> when the
+%%% second argument is atom-valued and <code>stop(Node, Opts)</code>
+%%% when it's list-valued.
+%%% @see stop/3
+stop(_HostOrNode = Node, _NodeOrOpts = Opts) %% match to satiate edoc
+  when is_list(Opts) ->
+    stop(gethostname(), Node, Opts);
+
+stop(Host, Node) ->
+    stop(Host, Node, []).
+
+%%% @spec stop(Host, Node, Opts) -> Result
 %%%   Host = atom()
 %%%   Node = atom()
+%%%   Opts = [OptTuples]
+%%%   OptTuples = {stop_timeout, StopTimeout}
+%%%   StopTimeout = integer()
 %%%   Result = {ok, NodeName} |
 %%%            {error, Reason, NodeName}
 %%%   Reason = not_started |
@@ -222,12 +249,19 @@ stop(Node) ->
 %%%            stop_timeout
 %%%   NodeName = atom()
 %%% @doc Stops the running Erlang node with name <code>Node</code> on
-%%% host <code>Host</code>.
-stop(Host, Node) ->
+%%% host <code>Host</code> as specified by options <code>Opts</code>.
+%%%
+%%% <p>Option <code>stop_timeout</code> specifies, in seconds,
+%%% the time to wait until the node is disconnected.
+%%% Defaults to 5 seconds. If this timeout occurs,
+%%% the result <code>{error, stop_timeout, NodeName}</code> is returned.
+%%%
+stop(Host, Node, Opts) ->
     ENode = enodename(Host, Node),
     case is_started(ENode) of
 	{true, connected}->
-	     do_stop(ENode);
+	     OptionsRec = fetch_options(Opts),
+	     do_stop(ENode, OptionsRec);
 	{true, not_connected}->
 	     {error, not_connected, ENode};
 	false->
@@ -257,11 +291,13 @@ fetch_options(Options) ->
     EnvVars = get_option_value(env, Options, []),
     SSHPort = get_option_value(ssh_port, Options, []),
     SSHOpts = get_option_value(ssh_opts, Options, []),
+    StopTimeout = get_option_value(stop_timeout, Options, 5),
     #options{username=UserName, password=Password,
 	     boot_timeout=BootTimeout, init_timeout=InitTimeout,
 	     startup_timeout=StartupTimeout, startup_functions=StartupFunctions,
 	     monitor_master=Monitor, kill_if_fail=KillIfFail,
-	     erl_flags=ErlFlags, env=EnvVars, ssh_port=SSHPort, ssh_opts=SSHOpts}.
+	     erl_flags=ErlFlags, env=EnvVars, ssh_port=SSHPort, ssh_opts=SSHOpts,
+	     stop_timeout=StopTimeout}.
 
 % send a message when slave node is started
 % @hidden
@@ -461,6 +497,8 @@ wait_for_node_alive(Node, N) ->
 
 % call init:stop on a remote node
 do_stop(ENode) ->
+    do_stop(ENode, fetch_options([])).
+do_stop(ENode, Options) ->
     {Cover,MainCoverNode} =
 	case test_server:is_cover() of
 	    true ->
@@ -471,7 +509,8 @@ do_stop(ENode) ->
 		{false,undefined}
     end,
     spawn(ENode, init, stop, []),
-    case wait_for_node_dead(ENode, 5) of
+    StopTimeout = Options#options.stop_timeout,
+    case wait_for_node_dead(ENode, StopTimeout) of
 	{ok,ENode} ->
 	    if Cover ->
 		    %% To avoid that cover is started again if a node
diff --git a/lib/common_test/src/ct_ssh.erl b/lib/common_test/src/ct_ssh.erl
index ca62357e1c..491d56dfc1 100644
--- a/lib/common_test/src/ct_ssh.erl
+++ b/lib/common_test/src/ct_ssh.erl
@@ -996,7 +996,8 @@ init(KeyOrName, {ConnType,Addr,Port}, AllOpts) ->
 	    try_log(heading(init,KeyOrName), 
 		    "Opened ~w connection:\n"
 		    "Host: ~tp (~p)\nUser: ~tp\nPassword: ~p\n",
-		[ConnType,Addr,Port,User,lists:duplicate(length(Password),$*)]),
+		[ConnType,Addr,Port,User,
+                 lists:duplicate(string:length(Password),$*)]),
 	    {ok,SSHRef,#state{ssh_ref=SSHRef, conn_type=ConnType,
 			      target=KeyOrName}}
     end.
diff --git a/lib/common_test/src/ct_telnet.erl b/lib/common_test/src/ct_telnet.erl
index 14d9d381da..b50cddd492 100644
--- a/lib/common_test/src/ct_telnet.erl
+++ b/lib/common_test/src/ct_telnet.erl
@@ -1455,7 +1455,7 @@ match_line(Name,Pid,Line,[{prompt,PromptType}|Patterns],FoundPrompt,Term,
   when PromptType=/=FoundPrompt ->
     match_line(Name,Pid,Line,Patterns,FoundPrompt,Term,EO,RetTag);
 match_line(Name,Pid,Line,[{Tag,Pattern}|Patterns],FoundPrompt,Term,EO,RetTag) ->
-    case re:run(Line,Pattern,[{capture,all,list}]) of
+    case re:run(Line,Pattern,[{capture,all,list},unicode]) of
 	nomatch ->
 	    match_line(Name,Pid,Line,Patterns,FoundPrompt,Term,EO,RetTag);
 	{match,Match} ->
@@ -1463,7 +1463,7 @@ match_line(Name,Pid,Line,[{Tag,Pattern}|Patterns],FoundPrompt,Term,EO,RetTag) ->
 	    {RetTag,{Tag,Match}}
     end;
 match_line(Name,Pid,Line,[Pattern|Patterns],FoundPrompt,Term,EO,RetTag) ->
-    case re:run(Line,Pattern,[{capture,all,list}]) of
+    case re:run(Line,Pattern,[{capture,all,list},unicode]) of
 	nomatch ->
 	    match_line(Name,Pid,Line,Patterns,FoundPrompt,Term,EO,RetTag);
 	{match,Match} ->
@@ -1575,7 +1575,7 @@ split_lines([],Line,Lines) ->
 match_prompt(Str,Prx) ->
     match_prompt(Str,Prx,[]).
 match_prompt(Str,Prx,Acc) ->
-    case re:run(Str,Prx) of
+    case re:run(Str,Prx,[unicode]) of
 	nomatch ->
 	    noprompt;
 	{match,[{Start,Len}]} ->
diff --git a/lib/common_test/src/ct_testspec.erl b/lib/common_test/src/ct_testspec.erl
index 09839bd35d..bb445bb0d2 100644
--- a/lib/common_test/src/ct_testspec.erl
+++ b/lib/common_test/src/ct_testspec.erl
@@ -537,7 +537,7 @@ replace_names_in_elems([],Modified,_Defs) ->
 replace_names_in_string(Term,Defs=[{Name,Replacement=[Ch|_]}|Ds])
   when is_integer(Ch) ->
     try re:replace(Term,[$'|atom_to_list(Name)]++"'",
-		   Replacement,[{return,list}]) of
+		   Replacement,[{return,list},unicode]) of
 	Term ->					% no match, proceed
 	    replace_names_in_string(Term,Ds);
 	Term1 ->
@@ -569,7 +569,7 @@ replace_names_in_node1(NodeStr,Defs=[{Name,Replacement}|Ds]) ->
 	    replace_names_in_node1(NodeStr,Ds);
        true ->
 	    case re:replace(NodeStr,atom_to_list(Name),
-			    ReplStr,[{return,list}]) of
+			    ReplStr,[{return,list},unicode]) of
 		NodeStr ->			% no match, proceed
 		    replace_names_in_node1(NodeStr,Ds);
 		NodeStr1 ->
diff --git a/lib/common_test/src/ct_util.erl b/lib/common_test/src/ct_util.erl
index abf131f4df..3c0fead5b2 100644
--- a/lib/common_test/src/ct_util.erl
+++ b/lib/common_test/src/ct_util.erl
@@ -795,25 +795,25 @@ parse_table(Data) ->
     {Heading,Lines}.
 
 get_headings(["|" ++ Headings | Rest]) ->
-    {remove_space(string:tokens(Headings, "|"),[]), Rest};
+    {remove_space(string:lexemes(Headings, "|"),[]), Rest};
 get_headings([_ | Rest]) ->
     get_headings(Rest);
 get_headings([]) ->
     {{},[]}.
 
 parse_row(["|" ++ _ = Row | T], Rows, NumCols) when NumCols > 1 ->
-    case string:tokens(Row, "|") of
+    case string:lexemes(Row, "|") of
 	Values when length(Values) =:= NumCols ->
 	    parse_row(T,[remove_space(Values,[])|Rows], NumCols);
 	Values when length(Values) < NumCols ->
 	    parse_row([Row ++"\n"++ hd(T) | tl(T)], Rows, NumCols)
     end;
-parse_row(["|" ++ _ = Row | T], Rows, 1 = NumCols) ->
-    case string:rchr(Row, $|) of
-	1 ->
+parse_row(["|" ++ X = Row | T], Rows, 1 = NumCols) ->
+    case string:find(X, [$|]) of
+	nomatch ->
 	    parse_row([Row ++"\n"++hd(T) | tl(T)], Rows, NumCols);
 	_Else ->
-	    parse_row(T, [remove_space(string:tokens(Row,"|"),[])|Rows],
+	    parse_row(T, [remove_space(string:lexemes(Row,"|"),[])|Rows],
 		      NumCols)
     end;
 parse_row([_Skip | T], Rows, NumCols) ->
@@ -822,7 +822,7 @@ parse_row([], Rows, _NumCols) ->
     lists:reverse(Rows).
 
 remove_space([Str|Rest],Acc) ->
-    remove_space(Rest,[string:strip(string:strip(Str),both,$')|Acc]);
+    remove_space(Rest,[string:trim(string:trim(Str,both,[$\s]),both,[$'])|Acc]);
 remove_space([],Acc) ->
     list_to_tuple(lists:reverse(Acc)).
 
@@ -832,7 +832,7 @@ remove_space([],Acc) ->
 %%%
 %%% @doc
 is_test_dir(Dir) ->
-    lists:last(string:tokens(filename:basename(Dir), "_")) == "test".
+    lists:last(string:lexemes(filename:basename(Dir), "_")) == "test".
 
 %%%-----------------------------------------------------------------
 %%% @spec 
@@ -1077,7 +1077,7 @@ open_url(iexplore, Args, URL) ->
     _ = case win32reg:values(R) of
 	{ok, Paths} ->
 	    Path = proplists:get_value(default, Paths),
-	    [Cmd | _] = string:tokens(Path, "%"),
+	    [Cmd | _] = string:lexemes(Path, "%"),
 	    Cmd1 = Cmd ++ " " ++ Args ++ " " ++ URL,
 	    io:format(?def_gl, "~nOpening ~ts with command:~n  ~ts~n", [URL,Cmd1]),
 	    open_port({spawn,Cmd1}, []);
diff --git a/lib/common_test/src/cth_surefire.erl b/lib/common_test/src/cth_surefire.erl
index da68bd105e..4407ff56c1 100644
--- a/lib/common_test/src/cth_surefire.erl
+++ b/lib/common_test/src/cth_surefire.erl
@@ -184,15 +184,14 @@ end_tc(Name, _Config, _Res, State = #state{ curr_suite = Suite,
     Log =
 	case Log0 of
 	    "" ->
-		LowerSuiteName = string:to_lower(atom_to_list(Suite)),
+		LowerSuiteName = string:lowercase(atom_to_list(Suite)),
 		filename:join(CurrLogDir,LowerSuiteName++"."++Name++".html");
 	    _ ->
 		Log0
 	end,
     Url = make_url(UrlBase,Log),
     ClassName = atom_to_list(Suite),
-    PGroup = string:join([ atom_to_list(Group)||
-			     Group <- lists:reverse(Groups)],"."),
+    PGroup = lists:concat(lists:join(".",lists:reverse(Groups))),
     TimeTakes = io_lib:format("~f",[timer:now_diff(?now,TS) / 1000000]),
     State#state{ test_cases = [#testcase{ log = Log,
 					  url = Url,
@@ -317,9 +316,9 @@ make_url(undefined,_) ->
 make_url(_,[]) ->
     undefined;
 make_url(UrlBase0,Log) ->
-    UrlBase = string:strip(UrlBase0,right,$/),
+    UrlBase = string:trim(UrlBase0,trailing,[$/]),
     RelativeLog = get_relative_log_url(Log),
-    string:join([UrlBase,RelativeLog],"/").
+    lists:flatten(lists:join($/,[UrlBase,RelativeLog])).
 
 get_test_root(Log) ->
     LogParts = filename:split(Log),
@@ -329,7 +328,7 @@ get_relative_log_url(Log) ->
     LogParts = filename:split(Log),
     Start = length(LogParts)-?log_depth,
     Length = ?log_depth+1,
-    string:join(lists:sublist(LogParts,Start,Length),"/").
+    lists:flatten(lists:join($/,lists:sublist(LogParts,Start,Length))).
 
 count_tcs([#testcase{name=ConfCase}|TCs],Ok,F,S)
   when ConfCase=="init_per_suite";
diff --git a/lib/common_test/src/test_server.erl b/lib/common_test/src/test_server.erl
index ee3a5e4bba..35a73e6d2e 100644
--- a/lib/common_test/src/test_server.erl
+++ b/lib/common_test/src/test_server.erl
@@ -21,7 +21,7 @@
 -define(DEFAULT_TIMETRAP_SECS, 60).
 
 %%% TEST_SERVER_CTRL INTERFACE %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
--export([run_test_case_apply/1,init_target_info/0]).
+-export([run_test_case_apply/1,init_target_info/0,init_valgrind/0]).
 -export([cover_compile/1,cover_analyse/2]).
 
 %%% TEST_SERVER_SUP INTERFACE %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -49,6 +49,10 @@
 
 -export([break/1,break/2,break/3,continue/0,continue/1]).
 
+%%% DEBUGGER INTERFACE %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+-export([valgrind_new_leaks/0, valgrind_format/2,
+	 is_valgrind/0]).
+
 %%% PRIVATE EXPORTED %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 -export([]).
 
@@ -69,6 +73,10 @@ init_target_info() ->
 		 username=test_server_sup:get_username(),
 		 cookie=atom_to_list(erlang:get_cookie())}.
 
+init_valgrind() ->
+    valgrind_new_leaks().
+
+
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% cover_compile(#cover{app=App,incl=Include,excl=Exclude,cross=Cross}) ->
 %%        {ok,#cover{mods=AnalyseModules}} | {error,Reason}
@@ -358,11 +366,12 @@ stick_all_sticky(Node,Sticky) ->
 %% compensate timetraps for runtime delays introduced by e.g. tools like
 %% cover.
 
-run_test_case_apply({Mod,Func,Args,Name,RunInit,TimetrapData}) ->
+run_test_case_apply({CaseNum,Mod,Func,Args,Name,RunInit,TimetrapData}) ->
     case is_valgrind() of
 	false ->
 	    ok;
 	true ->
+            valgrind_format("Test case #~w ~w:~w/1", [CaseNum, Mod, Func]),
 	    os:putenv("VALGRIND_LOGFILE_INFIX",atom_to_list(Mod)++"."++
 		      atom_to_list(Func)++"-")
     end,
@@ -370,6 +379,7 @@ run_test_case_apply({Mod,Func,Args,Name,RunInit,TimetrapData}) ->
     Result = run_test_case_apply(Mod, Func, Args, Name, RunInit,
 				 TimetrapData),
     ProcAft = erlang:system_info(process_count),
+    valgrind_new_leaks(),
     DetFail = get(test_server_detected_fail),
     {Result,DetFail,ProcBef,ProcAft}.
 
@@ -452,11 +462,12 @@ run_test_case_msgloop(#st{ref=Ref,pid=Pid,end_conf_pid=EndConfPid0}=St0) ->
 			 %% it as a comment, potentially replacing user data
 			 Error = lists:flatten(io_lib:format("Aborted: ~tp",
 							     [Reason])),
-			 Error1 = lists:flatten([string:strip(S,left) ||
-						    S <- string:tokens(Error,
-								       [$\n])]),
-			 Comment = if length(Error1) > 63 ->
-					   string:substr(Error1,1,60) ++ "...";
+			 Error1 = lists:flatten([string:trim(S,leading,"\s") ||
+						    S <- string:lexemes(Error,
+                                                                        [$\n])]),
+                         ErrorLength = string:length(Error1),
+			 Comment = if ErrorLength > 63 ->
+					   string:slice(Error1,0,60) ++ "...";
 				      true ->
 					   Error1
 				   end,
@@ -2687,9 +2698,9 @@ is_cover() ->
 is_debug() ->
     case catch erlang:system_info(debug_compiled) of
 	{'EXIT', _} ->
-	    case string:str(erlang:system_info(system_version), "debug") of
-		Int when is_integer(Int), Int > 0 -> true;
-		_ -> false
+	    case string:find(erlang:system_info(system_version), "debug") of
+                nomatch -> false;
+		_ -> true
 	    end;
 	Res ->
 	    Res
@@ -2725,9 +2736,9 @@ has_superfluous_schedulers() ->
 %% We might want to do more tests on a commercial platform, for instance
 %% ensuring that all applications have documentation).
 is_commercial() ->
-    case string:str(erlang:system_info(system_version), "source") of
-	Int when is_integer(Int), Int > 0 -> false;
-	_ -> true
+    case string:find(erlang:system_info(system_version), "source") of
+        nomatch -> true;
+	_ -> false
     end.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -2735,11 +2746,36 @@ is_commercial() ->
 %%
 %% Returns true if valgrind is running, else false
 is_valgrind() ->
-    case os:getenv("TS_RUN_VALGRIND") of
-	false -> false;
-	_ -> true
+    case catch erlang:system_info({valgrind, running}) of
+	{'EXIT', _} -> false;
+	Res -> Res
     end.
 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%                     DEBUGGER INTERFACE                    %%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% valgrind_new_leaks() -> ok
+%%
+%% Checks for new memory leaks if Valgrind is active.
+valgrind_new_leaks() ->
+    catch erlang:system_info({valgrind, memory}),
+    ok.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% valgrind_format(Format, Args) -> ok
+%% Format = string()
+%% Args = lists()
+%%
+%% Outputs the formatted string to Valgrind's logfile,if Valgrind is active.
+valgrind_format(Format, Args) ->
+    (catch erlang:system_info({valgrind, io_lib:format(Format, Args)})),
+    ok.
+
+
+
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %%
 %% Apply given function and reply to caller or proxy.
diff --git a/lib/common_test/src/test_server_ctrl.erl b/lib/common_test/src/test_server_ctrl.erl
index 9412c43187..c70ea4ef9d 100644
--- a/lib/common_test/src/test_server_ctrl.erl
+++ b/lib/common_test/src/test_server_ctrl.erl
@@ -1464,13 +1464,14 @@ get_suites([], Mods) ->
     lists:reverse(Mods).
 
 add_mod(Mod, Mods) ->
-    case string:rstr(atom_to_list(Mod), "_SUITE") of
-	0 -> false;
-	_ ->					% test suite
+    case lists:reverse(atom_to_list(Mod)) of
+        "ETIUS_" ++ _ -> % test suite
 	     case lists:member(Mod, Mods) of
 		 true ->  false;
 		 false -> true
-	     end
+	     end;
+        _ ->
+            false
     end.
 
 
@@ -2163,6 +2164,7 @@ do_add_end_per_suite_and_skip(LastMod, LastRef, Mod, FwMod) ->
 %% Runs the specified tests, then displays/logs the summary.
 
 run_test_cases(TestSpec, Config, TimetrapData) ->
+    test_server:init_valgrind(),
     case lists:member(no_src, get(test_server_logopts)) of
 	true ->
 	    ok;
@@ -2610,7 +2612,7 @@ run_test_cases_loop([{conf,Ref,Props,{Mod,Func}}|_Cases]=Cs0,
 				NumStr ->
 				    %% Ex: "123 456 789" or "123,456,789" -> {123,456,789}
 				    list_to_tuple([list_to_integer(NS) ||
-						   NS <- string:tokens(NumStr, [$ ,$:,$,])])
+						   NS <- string:lexemes(NumStr, [$ ,$:,$,])])
 			    end,
 			{shuffle_cases(Ref, Cs0, UseSeed),{shuffle,UseSeed}}
 		end;
@@ -3796,7 +3798,7 @@ run_test_case1(Ref, Num, Mod, Func, Args, RunInit,
 
     %% run the test case
     {Result,DetectedFail,ProcsBefore,ProcsAfter} =
-	run_test_case_apply(Mod, Func, [UpdatedArgs], GrName,
+	run_test_case_apply(Num, Mod, Func, [UpdatedArgs], GrName,
 			    RunInit, TimetrapData),
     {Time,RetVal,Loc,Opts,Comment} =
 	case Result of
@@ -3978,11 +3980,12 @@ progress(skip, CaseNum, Mod, Func, GrName, Loc, Reason, Time,
 			       true -> "~w"
 			    end, [Time]),
     ReasonStr = escape_chars(reason_to_string(Reason1)),
-    ReasonStr1 = lists:flatten([string:strip(S,left) ||
-				S <- string:tokens(ReasonStr,[$\n])]),
+    ReasonStr1 = lists:flatten([string:trim(S,leading,"\s") ||
+				S <- string:lexemes(ReasonStr,[$\n])]),
+    ReasonLength = string:length(ReasonStr1),
     ReasonStr2 =
-	if length(ReasonStr1) > 80 ->
-		string:substr(ReasonStr1, 1, 77) ++ "...";
+	if ReasonLength > 80 ->
+		string:slice(ReasonStr1, 0, 77) ++ "...";
 	   true ->
 		ReasonStr1
 	end,
@@ -4066,11 +4069,12 @@ progress(failed, CaseNum, Mod, Func, GrName, unknown, Reason, Time,
 			       true -> "~w"
 			    end, [Time]),
     ErrorReason = escape_chars(lists:flatten(io_lib:format("~tp", [Reason]))),
-    ErrorReason1 = lists:flatten([string:strip(S,left) ||
-				  S <- string:tokens(ErrorReason,[$\n])]),
+    ErrorReason1 = lists:flatten([string:trim(S,leading,"\s") ||
+				  S <- string:lexemes(ErrorReason,[$\n])]),
+    ErrorReasonLength = string:length(ErrorReason1),
     ErrorReason2 =
-	if length(ErrorReason1) > 63 ->
-		string:substr(ErrorReason1, 1, 60) ++ "...";
+	if ErrorReasonLength > 63 ->
+		string:slice(ErrorReason1, 0, 60) ++ "...";
 	   true ->
 		ErrorReason1
 	end,
@@ -4366,7 +4370,7 @@ do_format_exception(Reason={Error,Stack}) ->
 
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% run_test_case_apply(Mod, Func, Args, Name, RunInit,
+%% run_test_case_apply(CaseNum, Mod, Func, Args, Name, RunInit,
 %%                     TimetrapData) ->
 %%  {{Time,RetVal,Loc,Opts,Comment},DetectedFail,ProcessesBefore,ProcessesAfter} |
 %%  {{died,Reason,unknown,Comment},DetectedFail,ProcessesBefore,ProcessesAfter}
@@ -4380,9 +4384,9 @@ do_format_exception(Reason={Error,Stack}) ->
 %% ProcessesBefore = ProcessesAfter = integer()
 %%
 
-run_test_case_apply(Mod, Func, Args, Name, RunInit,
+run_test_case_apply(CaseNum, Mod, Func, Args, Name, RunInit,
 		    TimetrapData) ->
-    test_server:run_test_case_apply({Mod,Func,Args,Name,RunInit,
+    test_server:run_test_case_apply({CaseNum,Mod,Func,Args,Name,RunInit,
 				     TimetrapData}).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/lib/common_test/src/test_server_node.erl b/lib/common_test/src/test_server_node.erl
index a18ff1fd62..f0f9cea6e0 100644
--- a/lib/common_test/src/test_server_node.erl
+++ b/lib/common_test/src/test_server_node.erl
@@ -315,9 +315,11 @@ start_node_peer(SlaveName, OptList, From, TI) ->
     Prog0 = start_node_get_option_value(erl, OptList, default),
     Prog = quote_progname(pick_erl_program(Prog0)),
     Args = 
-	case string:str(SuppliedArgs,"-setcookie") of
-	    0 -> "-setcookie " ++ TI#target_info.cookie ++ " " ++ SuppliedArgs;
-	    _ -> SuppliedArgs
+	case string:find(SuppliedArgs,"-setcookie") of
+	    nomatch ->
+                "-setcookie " ++ TI#target_info.cookie ++ " " ++ SuppliedArgs;
+	    _ ->
+                SuppliedArgs
 	end,
     Cmd = lists:concat([Prog,
 			" -detached ",
@@ -612,7 +614,7 @@ pick_erl_program(L) ->
 %% emulator and flags as the test node. The return from lib:progname()
 %% could then typically be '/<full_path_to>/cerl -gcov').
 quote_progname(Progname) ->
-    do_quote_progname(string:tokens(Progname," ")).
+    do_quote_progname(string:lexemes(Progname," ")).
 
 do_quote_progname([Prog]) ->
     "\""++Prog++"\"";
@@ -692,7 +694,7 @@ find_rel_suse_2(Rel, RootWc) ->
     case file:list_dir(RelDir) of
 	{ok,Dirs} ->
 	    case lists:filter(fun(Dir) ->
-				      case re:run(Dir, Pat) of
+				      case re:run(Dir, Pat, [unicode]) of
 					  nomatch -> false;
 					  _       -> true
 				      end
diff --git a/lib/common_test/src/test_server_sup.erl b/lib/common_test/src/test_server_sup.erl
index 9a26de4774..21f4be22fe 100644
--- a/lib/common_test/src/test_server_sup.erl
+++ b/lib/common_test/src/test_server_sup.erl
@@ -346,7 +346,7 @@ check_appup_clauses_plausible([], _Direction, _Modules) ->
     ok;
 check_appup_clauses_plausible([{Re, Instrs} | Rest], Direction, Modules)
   when is_binary(Re) ->
-    case re:compile(Re) of
+    case re:compile(Re,[unicode]) of
         {ok, _} ->
             case check_appup_instructions(Instrs, Direction, Modules) of
                 ok ->
diff --git a/lib/common_test/src/unix_telnet.erl b/lib/common_test/src/unix_telnet.erl
index 8ac467014c..5992f26e6d 100644
--- a/lib/common_test/src/unix_telnet.erl
+++ b/lib/common_test/src/unix_telnet.erl
@@ -121,7 +121,8 @@ connect1(Name,Ip,Port,Timeout,KeepAlive,TCPNoDelay,Username,Password) ->
 							  prompt,?prx,[]) of
 			    {ok,{prompt,?password},_} ->
 				ok = ct_telnet_client:send_data(Pid,Password),
-				Stars = lists:duplicate(length(Password),$*),
+				Stars =
+                                    lists:duplicate(string:length(Password),$*),
 				log(Name,send,"Password: ~s",[Stars]),
 %				ok = ct_telnet_client:send_data(Pid,""),
 				case ct_telnet:silent_teln_expect(Name,Pid,[],
diff --git a/lib/common_test/test/ct_config_SUITE.erl b/lib/common_test/test/ct_config_SUITE.erl
index 250700741c..5ffc735d6a 100644
--- a/lib/common_test/test/ct_config_SUITE.erl
+++ b/lib/common_test/test/ct_config_SUITE.erl
@@ -213,8 +213,8 @@ reformat_events(Events, EH) ->
 skip_dynamic() ->
     case os:getenv("TS_EXTRA_PLATFORM_LABEL") of
 	TSExtraPlatformLabel when is_list(TSExtraPlatformLabel) ->
-	    case string:str(TSExtraPlatformLabel,"TimeWarpingOS") of
-		0 -> false;
+	    case string:find(TSExtraPlatformLabel,"TimeWarpingOS") of
+		nomatch -> false;
 		_ -> true
 	    end;
 	_ ->
diff --git a/lib/common_test/test/ct_hooks_SUITE.erl b/lib/common_test/test/ct_hooks_SUITE.erl
index 8ba14e63bc..3c1e887f65 100644
--- a/lib/common_test/test/ct_hooks_SUITE.erl
+++ b/lib/common_test/test/ct_hooks_SUITE.erl
@@ -257,7 +257,7 @@ cth_log(Config) when is_list(Config) ->
     lists:foreach(
       fun(UnexpIoLog) ->
 	      {ok,Bin} = file:read_file(UnexpIoLog),
-	      Ts = string:tokens(binary_to_list(Bin),[$\n]),
+	      Ts = string:lexemes(binary_to_list(Bin),[$\n]),
 	      Matches = lists:foldl(fun([$=,$E,$R,$R,$O,$R|_],  N) ->
 					    N+1;
 				       ([$L,$o,$g,$g,$e,$r|_],  N) ->
diff --git a/lib/common_test/test/ct_log_SUITE.erl b/lib/common_test/test/ct_log_SUITE.erl
index 93affda398..9655b6f09a 100644
--- a/lib/common_test/test/ct_log_SUITE.erl
+++ b/lib/common_test/test/ct_log_SUITE.erl
@@ -174,7 +174,7 @@ verify(Config) ->
     TcLogFile = proplists:get_value(the_logfile, SavedCfg),
     Pid = proplists:get_value(the_pid, SavedCfg),
     StrPid = lists:flatten(io_lib:format("~p",[Pid])),
-    EscPid = "&lt;" ++ string:substr(StrPid, 2, length(StrPid)-2) ++ "&gt;", 
+    EscPid = "&lt;" ++ string:slice(StrPid, 1, length(StrPid)-2) ++ "&gt;", 
     String = proplists:get_value(the_string, SavedCfg),
     ct:log("Read from prev testcase: ~p & ~p", [TcLogFile,Pid]),
     {ok,Dev} = file:open(TcLogFile, [read]),
diff --git a/lib/common_test/test/ct_pre_post_test_io_SUITE.erl b/lib/common_test/test/ct_pre_post_test_io_SUITE.erl
index 7ffe6f045b..0b85392009 100644
--- a/lib/common_test/test/ct_pre_post_test_io_SUITE.erl
+++ b/lib/common_test/test/ct_pre_post_test_io_SUITE.erl
@@ -164,7 +164,7 @@ pre_post_io(Config) ->
       fun(PrePostIoFile) ->
 	      ct:log("Reading Pre/Post Test IO Log file: ~ts", [PrePostIoFile]),
 	      {ok,Bin} = file:read_file(PrePostIoFile),
-	      Ts = string:tokens(binary_to_list(Bin),[$\n]),
+	      Ts = string:lexemes(binary_to_list(Bin),[$\n]),
 	      PrePostIOEntries =
 		  lists:foldl(fun([$L,$o,$g,$g,$e,$r|_],
 				  {pre,PreLogN,PreErrN,0,0}) ->
@@ -203,7 +203,7 @@ pre_post_io(Config) ->
       fun(UnexpIoFile) ->
 	      ct:log("Reading Unexpected IO Log file: ~ts", [UnexpIoFile]),
 	      {ok,Bin} = file:read_file(UnexpIoFile),
-	      Ts = string:tokens(binary_to_list(Bin),[$\n]),
+	      Ts = string:lexemes(binary_to_list(Bin),[$\n]),
 	      UnexpIOEntries =
 		  lists:foldl(fun([$L,$o,$g,$g,$e,$r|_], [LogN,ErrN]) ->
 				      [LogN+1,ErrN];
diff --git a/lib/common_test/test/ct_priv_dir_SUITE_data/priv_dir_SUITE.erl b/lib/common_test/test/ct_priv_dir_SUITE_data/priv_dir_SUITE.erl
index 1b171801a3..b1d191873d 100644
--- a/lib/common_test/test/ct_priv_dir_SUITE_data/priv_dir_SUITE.erl
+++ b/lib/common_test/test/ct_priv_dir_SUITE_data/priv_dir_SUITE.erl
@@ -126,12 +126,12 @@ default(Config) ->
 
 auto_per_tc(Config) ->
     PrivDir = proplists:get_value(priv_dir, Config),
-    ["log_private",_] = string:tokens(filename:basename(PrivDir), "."),
+    ["log_private",_] = string:lexemes(filename:basename(PrivDir), "."),
     {ok,_} = file:list_dir(PrivDir).
 
 manual_per_tc(Config) ->
     PrivDir = proplists:get_value(priv_dir, Config),
-    ["log_private",_] = string:tokens(filename:basename(PrivDir), "."),
+    ["log_private",_] = string:lexemes(filename:basename(PrivDir), "."),
     {error,_} = file:list_dir(PrivDir),
     ok = ct:make_priv_dir(),
     {ok,_} = file:list_dir(PrivDir).
diff --git a/lib/common_test/test/ct_test_support.erl b/lib/common_test/test/ct_test_support.erl
index 44c27e54c2..2ba7c7c13f 100644
--- a/lib/common_test/test/ct_test_support.erl
+++ b/lib/common_test/test/ct_test_support.erl
@@ -88,7 +88,7 @@ start_slave(Config, Level) ->
     start_slave(ct, Config, Level).
 
 start_slave(NodeName, Config, Level) ->
-    [_,Host] = string:tokens(atom_to_list(node()), "@"),
+    [_,Host] = string:lexemes(atom_to_list(node()), "@"),
     test_server:format(0, "Trying to start ~s~n",
 		       [atom_to_list(NodeName)++"@"++Host]),
     PR = proplists:get_value(printable_range,Config,io:printable_range()),
@@ -1088,8 +1088,8 @@ locate({TEH,Name,{'DEF','RUNDIR'}}, Node, [Ev|Evs], Config) ->
 	{TEH,#event{name=Name, node=Node, data=EvData}} ->
 	    {_,{_,LogDir}} = lists:keysearch(logdir, 1, get_opts(Config)),
 	    D = filename:join(LogDir, "ct_run." ++ atom_to_list(Node)),
-	    case string:str(EvData, D) of
-		0 -> exit({badmatch,EvData});
+	    case string:find(EvData, D) of
+		nomatch -> exit({badmatch,EvData});
 		_ -> ok	    
 	    end,
 	    {Config,Evs};
@@ -1104,8 +1104,8 @@ locate({TEH,Name,{'DEF',{'START_TIME','LOGDIR'}}}, Node, [Ev|Evs], Config) ->
 		{DT={{_,_,_},{_,_,_}},Dir} when is_list(Dir) ->
 		    {_,{_,LogDir}} = lists:keysearch(logdir, 1, get_opts(Config)),
 		    D = filename:join(LogDir, "ct_run." ++ atom_to_list(Node)),
-		    case string:str(Dir, D) of
-			0 -> exit({badmatch,Dir});
+		    case string:find(Dir, D) of
+			nomatch -> exit({badmatch,Dir});
 			_ -> ok	    
 		    end,
 		    {[{start_time,DT}|Config],Evs};
@@ -1373,7 +1373,7 @@ delete_dirs(LogDir) ->
     Dirs2Del =
 	lists:foldl(fun(Dir, Del) ->
 			    [S,Mi,H,D,Mo,Y|_] = 
-				lists:reverse(string:tokens(Dir, [$.,$-,$_])),
+				lists:reverse(string:lexemes(Dir, [$.,$-,$_])),
 			    S2I = fun(Str) -> list_to_integer(Str) end,
 			    DT = {{S2I(Y),S2I(Mo),S2I(D)}, {S2I(H),S2I(Mi),S2I(S)}},
 			    Then = calendar:datetime_to_gregorian_seconds(DT),
diff --git a/lib/common_test/test/ct_unicode_SUITE.erl b/lib/common_test/test/ct_unicode_SUITE.erl
index 355503a5dc..6f6ec97ceb 100644
--- a/lib/common_test/test/ct_unicode_SUITE.erl
+++ b/lib/common_test/test/ct_unicode_SUITE.erl
@@ -191,7 +191,7 @@ check_logs(Dirs) ->
         [] ->
             ok;
         Match ->
-            MatchStr = string:join(Match,"\n"),
+            MatchStr = lists:join("\n",Match),
             ct:log("ERROR: Escaped unicode characters found in:~n~ts",[MatchStr]),
             ct:fail(escaped_unicode_characters_found)
     end.
diff --git a/lib/common_test/test/ct_userconfig_callback.erl b/lib/common_test/test/ct_userconfig_callback.erl
index c723f4ca1c..14e3d9a688 100644
--- a/lib/common_test/test/ct_userconfig_callback.erl
+++ b/lib/common_test/test/ct_userconfig_callback.erl
@@ -21,7 +21,7 @@
 -export([check_parameter/1, read_config/1]).
 
 read_config(Str) ->
-    KeyVals = string:tokens(Str, " "),
+    KeyVals = string:lexemes(Str, " "),
     {ok,read_config1(KeyVals)}.
 
 read_config1([Key,Val | KeyVals]) ->
diff --git a/lib/common_test/test/erl2html2_SUITE.erl b/lib/common_test/test/erl2html2_SUITE.erl
index 53a63578b2..b2336ff0bc 100644
--- a/lib/common_test/test/erl2html2_SUITE.erl
+++ b/lib/common_test/test/erl2html2_SUITE.erl
@@ -214,10 +214,10 @@ check_line_number(Last,Line,OrigLine) ->
 	    [$>|Rest] = lists:dropwhile(fun($>) -> false; (_) -> true end,Line),
 	    check_line_number(Last,Rest,OrigLine);
 	_ ->
-	    [N |_] = string:tokens(Line,":"),
+	    [N |_] = string:lexemes(Line,":"),
 %	    erlang:display(N),
 	    Num =
-		try list_to_integer(string:strip(N))
+		try list_to_integer(string:trim(N,both,"\s"))
 		catch _:_ -> ct:fail({no_line_number_after,Last,OrigLine})
 		end,
 	    if Num == Last+1 ->
diff --git a/lib/common_test/test/telnet_server.erl b/lib/common_test/test/telnet_server.erl
index 65300b0bdf..cef7784333 100644
--- a/lib/common_test/test/telnet_server.erl
+++ b/lib/common_test/test/telnet_server.erl
@@ -249,7 +249,7 @@ do_handle_data("echo " ++ Data,State) ->
     send(Data++"\r\n> ",State),
     {ok,State};
 do_handle_data("echo_sep " ++ Data,State) ->
-    Msgs = string:tokens(Data," "),
+    Msgs = string:lexemes(Data," "),
     lists:foreach(fun(Msg) ->
 			  send(Msg,State),
 			  timer:sleep(10)
@@ -260,28 +260,28 @@ do_handle_data("echo_no_prompt " ++ Data,State) ->
     send(Data,State),
     {ok,State};
 do_handle_data("echo_ml " ++ Data,State) ->
-    Lines = string:tokens(Data," "),
-    ReturnData = string:join(Lines,"\n"),
+    Lines = string:lexemes(Data," "),
+    ReturnData = lists:flatten(lists:join("\n",Lines)),
     send(ReturnData++"\r\n> ",State),
     {ok,State};
 do_handle_data("echo_ml_no_prompt " ++ Data,State) ->
-    Lines = string:tokens(Data," "),
-    ReturnData = string:join(Lines,"\n"),
+    Lines = string:lexemes(Data," "),
+    ReturnData = lists:flatten(lists:join("\n",Lines)),
     send(ReturnData,State),
     {ok,State};
 do_handle_data("echo_loop " ++ Data,State) ->
-    [TStr|Lines] = string:tokens(Data," "),
-    ReturnData = string:join(Lines,"\n"),
+    [TStr|Lines] = string:lexemes(Data," "),
+    ReturnData = lists:flatten(lists:join("\n",Lines)),
     send_loop(list_to_integer(TStr),ReturnData,State),
     {ok,State};
 do_handle_data("echo_delayed_prompt "++Data,State) ->
-    [MsStr|EchoData] = string:tokens(Data, " "),
-    send(string:join(EchoData,"\n"),State),
+    [MsStr|EchoData] = string:lexemes(Data, " "),
+    send(lists:flatten(lists:join("\n",EchoData)),State),
     timer:sleep(list_to_integer(MsStr)),
     send("\r\n> ",State),
     {ok,State};
 do_handle_data("disconnect_after " ++WaitStr,State) ->
-    Wait = list_to_integer(string:strip(WaitStr,right,$\n)),
+    Wait = list_to_integer(string:trim(WaitStr,trailing,"\n")),
     dbg("Server will close connection in ~w ms...", [Wait]),
     erlang:send_after(Wait,self(),disconnect),
     {ok,State};
diff --git a/lib/common_test/test/test_server_SUITE.erl b/lib/common_test/test/test_server_SUITE.erl
index 50d8bdd1ac..edfaea1d08 100644
--- a/lib/common_test/test/test_server_SUITE.erl
+++ b/lib/common_test/test/test_server_SUITE.erl
@@ -71,7 +71,7 @@ init_per_testcase(_TestCase, Config) ->
 %% @spec end_per_testcase(TestCase, Config0) ->
 %%               void() | {save_config,Config1} | {fail,Reason}
 end_per_testcase(test_server_unicode, _Config) ->
-    [_,Host] = string:tokens(atom_to_list(node()), "@"),
+    [_,Host] = string:lexemes(atom_to_list(node()), "@"),
     N1 = list_to_atom("test_server_tester_latin1" ++ "@" ++ Host),
     N2 = list_to_atom("test_server_tester_utf8" ++ "@" ++ Host),
     test_server:stop_node(N1),
@@ -347,7 +347,7 @@ generate_and_run_unicode_test(Config0,Encoding) ->
     RunDir = get_latest_run_dir(LogDir),
     true = filelib:is_dir(RunDir),
 
-    LowerModStr = string:to_lower(ModStr),
+    LowerModStr = string:lowercase(ModStr),
     SuiteHtml = translate_filename(LowerModStr++".src.html",Encoding),
     true = filelib:is_regular(filename:join(RunDir,SuiteHtml)),
 
@@ -362,7 +362,7 @@ generate_and_run_unicode_test(Config0,Encoding) ->
 %% remote file system on master - i.e. they will use same file name
 %% mode as the master.
 start_node(Config,Name,Args) ->
-    [_,Host] = string:tokens(atom_to_list(node()), "@"),
+    [_,Host] = string:lexemes(atom_to_list(node()), "@"),
     ct:log("Trying to start ~w@~s~n",[Name,Host]),
     case test_server:start_node(Name, peer, [{args,Args}]) of
 	{error,Reason} ->
diff --git a/lib/common_test/test/test_server_test_lib.erl b/lib/common_test/test/test_server_test_lib.erl
index c18b89b178..e3d987a2ea 100644
--- a/lib/common_test/test/test_server_test_lib.erl
+++ b/lib/common_test/test/test_server_test_lib.erl
@@ -43,7 +43,7 @@ pre_init_per_testcase(_TC,Config,State) ->
     {start_slave(Config, 50),State}.
 
 start_slave(Config,_Level) ->
-    [_,Host] = string:tokens(atom_to_list(node()), "@"),
+    [_,Host] = string:lexemes(atom_to_list(node()), "@"),
     
     ct:log("Trying to start ~s~n", 
 	   ["test_server_tester@"++Host]),
diff --git a/lib/common_test/test_server/ts.erl b/lib/common_test/test_server/ts.erl
index 5bfea9f4de..330652e73f 100644
--- a/lib/common_test/test_server/ts.erl
+++ b/lib/common_test/test_server/ts.erl
@@ -583,7 +583,7 @@ is_list_of_suites(List) ->
 		      S = if is_atom(Suite) -> atom_to_list(Suite);
 			     true -> Suite
 			  end,
-		      try lists:last(string:tokens(S,"_")) of
+		      try lists:last(string:lexemes(S,"_")) of
 			  "SUITE" -> true;
 			  "suite" -> true;
 			  _ -> false
diff --git a/lib/common_test/test_server/ts_autoconf_win32.erl b/lib/common_test/test_server/ts_autoconf_win32.erl
index 52e5ac8e69..6f6caaeb70 100644
--- a/lib/common_test/test_server/ts_autoconf_win32.erl
+++ b/lib/common_test/test_server/ts_autoconf_win32.erl
@@ -228,7 +228,7 @@ make(Vars) ->
     end.
 
 find_make(MakeCmd, Vars) ->
-    [Make|_] = string:tokens(MakeCmd, " \t"),
+    [Make|_] = string:lexemes(MakeCmd, " \t"),
     case os:find_executable(Make) of
 	false ->
 	    {no, Vars};
@@ -248,9 +248,9 @@ javac(Vars) ->
     end.
 
 is_debug_build() ->
-    case catch string:str(erlang:system_info(system_version), "debug") of
-	Int when is_integer(Int), Int > 0 ->
-	    true;
-	_ ->
-	    false
+    case catch string:find(erlang:system_info(system_version), "debug") of
+        nomatch ->
+            false;
+	_Else ->
+	    true
     end.
diff --git a/lib/common_test/test_server/ts_erl_config.erl b/lib/common_test/test_server/ts_erl_config.erl
index 032593bdda..c7fe4ccf83 100644
--- a/lib/common_test/test_server/ts_erl_config.erl
+++ b/lib/common_test/test_server/ts_erl_config.erl
@@ -311,7 +311,7 @@ lib_dir(Vars, Lib) ->
 			  end,
 	    CLibDir = filename:join(CLibDirList),
 	    Cmd = "ls -d " ++ CLibDir ++ "*",
-	    XLibDir = lists:last(string:tokens(os:cmd(Cmd),"\n")),
+	    XLibDir = lists:last(string:lexemes(os:cmd(Cmd),"\n")),
 	    case file:list_dir(XLibDir) of
 		{error, enoent} ->
 		    [];
@@ -361,15 +361,11 @@ emu_vars(Vars) ->
      {erl_name, atom_to_list(lib:progname())}|Vars].
 
 is_source_build() ->
-    string:str(erlang:system_info(system_version), "[source]") > 0.
+    string:find(erlang:system_info(system_version), "source") =/= nomatch.
 
 is_debug_build() ->
-    case catch string:str(erlang:system_info(system_version), "debug") of
-	Int when is_integer(Int), Int > 0 ->
-	    true;
-	_ ->
-	    false
-    end.
+    string:find(erlang:system_info(system_version), "debug") =/= nomatch.
+
 %%
 %% ssl_libdir
 %%
diff --git a/lib/common_test/test_server/ts_install.erl b/lib/common_test/test_server/ts_install.erl
index c5631fb9c3..048e5493d2 100644
--- a/lib/common_test/test_server/ts_install.erl
+++ b/lib/common_test/test_server/ts_install.erl
@@ -115,7 +115,7 @@ get_vars(_, _, _, _) ->
 config_flags() ->
     case os:getenv("CONFIG_FLAGS") of
 	false -> [];
-	CF -> string:tokens(CF, " \t\n")
+	CF -> string:lexemes(CF, " \t\n")
     end.
 
 unix_autoconf(XConf) ->
@@ -127,7 +127,7 @@ unix_autoconf(XConf) ->
     Threads = [" --enable-shlib-thread-safety" ||
 		  erlang:system_info(threads) /= false],
     Debug = [" --enable-debug-mode" ||
-		string:str(erlang:system_info(system_version),"debug") > 0],
+		string:find(erlang:system_info(system_version),"debug") =/= nomatch],
     MXX_Build = [Y || Y <- config_flags(),
 		      Y == "--enable-m64-build"
 			  orelse Y == "--enable-m32-build"],
@@ -159,10 +159,8 @@ assign_vars([]) ->
 assign_vars([{VAR,FlagsStr} | VARs]) ->
     [{VAR,assign_vars(FlagsStr)} | assign_vars(VARs)];
 assign_vars(FlagsStr) ->
-    Flags = [assign_all_vars(Str,[]) || Str <- string:tokens(FlagsStr, [$ ])],
-    string:strip(lists:flatten(lists:map(fun(Flag) ->
-						 Flag ++ " "
-					 end, Flags)), right).
+    Flags = [assign_all_vars(Str,[]) || Str <- string:lexemes(FlagsStr, [$\s])],
+    lists:flatten(lists:join(" ", Flags)).
 
 assign_all_vars([$$ | Rest], FlagSoFar) ->
     {VarName,Rest1} = get_var_name(Rest, []),
@@ -292,7 +290,7 @@ add_vars(Vars0, Opts0) ->
 get_testcase_callback() ->
     case os:getenv("TS_TESTCASE_CALLBACK") of
 	ModFunc when is_list(ModFunc), ModFunc /= "" ->
-	    case string:tokens(ModFunc, " ") of
+	    case string:lexemes(ModFunc, " ") of
 		[_Mod,_Func] -> ModFunc;
 		_ -> ""
 	    end;
@@ -430,8 +428,8 @@ bind_type() ->
 					
 
 debug() ->
-    case string:str(erlang:system_info(system_version), "debug") of
-	0 -> "";
+    case string:find(erlang:system_info(system_version), "debug") of
+	nomatch -> "";
 	_ -> "/Debug"
     end.
 
diff --git a/lib/common_test/test_server/ts_lib.erl b/lib/common_test/test_server/ts_lib.erl
index a7be740c5c..da8d676b18 100644
--- a/lib/common_test/test_server/ts_lib.erl
+++ b/lib/common_test/test_server/ts_lib.erl
@@ -99,7 +99,7 @@ specialized_specs(Dir,PostFix) ->
     sort_tests([begin
 		    DirPart = filename:dirname(Name),
 		    AppTest = hd(lists:reverse(filename:split(DirPart))),
-		    list_to_atom(string:substr(AppTest, 1, length(AppTest)-5))
+		    list_to_atom(string:slice(AppTest, 0, string:length(AppTest)-5))
 		end || Name <- Specs]).
 
 specs(Dir) ->
@@ -111,16 +111,17 @@ specs(Dir) ->
 			      [Spec,TestDir|_] =
 				  lists:reverse(filename:split(FullName)),
 			      [_TestSuffix|TDParts] = 
-				  lists:reverse(string:tokens(TestDir,[$_,$.])),
+				  lists:reverse(string:lexemes(TestDir,[$_,$.])),
 			      [_SpecSuffix|SParts] = 
-				  lists:reverse(string:tokens(Spec,[$_,$.])),
+				  lists:reverse(string:lexemes(Spec,[$_,$.])),
 			      if TDParts == SParts ->
 				      [filename_to_atom(FullName)];	  
 				 true ->
 				      []
 			      end
 		      end, Specs),
-    sort_tests(MainSpecs).
+
+    sort_tests(filter_tests(MainSpecs)).
 
 test_categories(Dir, App) ->
     Specs = filelib:wildcard(filename:join([filename:dirname(Dir),
@@ -141,10 +142,29 @@ suites(Dir, App) ->
 			"*_SUITE.erl"]),
     Suites=filelib:wildcard(Glob),
     [filename_to_atom(Name) || Name <- Suites].
-    
+
 filename_to_atom(Name) ->
     list_to_atom(filename:rootname(filename:basename(Name))).
 
+%% Filter out tests of applications that are not accessible
+
+filter_tests(Tests) ->
+    lists:filter(
+      fun(Special) when Special == epmd;
+                        Special == emulator;
+                        Special == system ->
+              true;
+         (Test) ->
+              case application:load(filename_to_atom(Test)) of
+                  {error, {already_loaded, _}} ->
+                      true;
+                  {error,_NoSuchApplication} ->
+                      false;
+                  _ ->
+                      true
+              end
+      end, Tests).
+
 %% Sorts a list of either log files directories or spec files.
 
 sort_tests(Tests) ->
@@ -253,7 +273,7 @@ do_test(Rest, Vars, Test) ->
 get_arg([$(|Rest], Vars, Stop, _) ->		
     get_arg(Rest, Vars, Stop, []); 
 get_arg([Stop|Rest], Vars, Stop, Acc) ->
-    Arg = string:strip(lists:reverse(Acc)),
+    Arg = string:trim(lists:reverse(Acc),both,[$\s]),
     Subst = subst(Arg, Vars),
     {Subst,Rest};
 get_arg([C|Rest], Vars, Stop, Acc) ->
diff --git a/lib/common_test/test_server/ts_run.erl b/lib/common_test/test_server/ts_run.erl
index ec4a54b249..3f594236bc 100644
--- a/lib/common_test/test_server/ts_run.erl
+++ b/lib/common_test/test_server/ts_run.erl
@@ -96,6 +96,9 @@ ct_run_test(Dir, CommonTestArgs) ->
 	case ct:run_test(CommonTestArgs) of
 	    {_,_,_} ->
 		ok;
+            {error,{make_failed, _Modules} = Error} ->
+		io:format("ERROR: ~P\n", [Error,20]),
+                erlang:halt(123, [{flush,false}]);
 	    {error,Error} ->
 		io:format("ERROR: ~P\n", [Error,20]);
 	    Other ->
@@ -284,6 +287,10 @@ tricky_print_data(Port, Timeout) ->
             receive
                 {Port, {exit_status, 0}} ->
                     ok;
+                {Port, {exit_status, 123 = N}} ->
+                    io:format(user, "Test run exited with status ~p,"
+                              "aborting rest of test~n", [N]),
+                    erlang:halt(123, [{flush,false}]);
                 {Port, {exit_status, N}} ->
                     io:format(user, "Test run exited with status ~p~n", [N])
             after 1 ->
@@ -457,4 +464,4 @@ split_one(Path) ->
     filename:split(Path).
 
 split_path(Path) ->
-    string:tokens(Path,";").
+    string:lexemes(Path,";").
diff --git a/lib/common_test/vsn.mk b/lib/common_test/vsn.mk
index 9fc3f7f797..7b959ebfe3 100644
--- a/lib/common_test/vsn.mk
+++ b/lib/common_test/vsn.mk
@@ -1 +1 @@
-COMMON_TEST_VSN = 1.15.1
+COMMON_TEST_VSN = 1.15.2
diff --git a/lib/compiler/doc/src/Makefile b/lib/compiler/doc/src/Makefile
index c6864cb835..254445c111 100644
--- a/lib/compiler/doc/src/Makefile
+++ b/lib/compiler/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 1997-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 1997-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 include $(ERL_TOP)/make/target.mk
@@ -38,13 +38,12 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN)
 XML_APPLICATION_FILES = ref_man.xml
 XML_REF3_FILES = compile.xml
 
-XML_PART_FILES = part_notes.xml part_notes_history.xml
+XML_PART_FILES =
 XML_CHAPTER_FILES = notes.xml notes_history.xml
 
 BOOK_FILES = book.xml
 
-GIF_FILES = \
-	warning.gif
+GIF_FILES =
 
 XML_FILES = \
 	$(BOOK_FILES) $(XML_CHAPTER_FILES) \
@@ -64,9 +63,9 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE =  $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -86,17 +85,17 @@ man: $(MAN3_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
 	rm -f $(MAN3DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -110,4 +109,3 @@ release_docs_spec: docs
 	$(INSTALL_DATA) $(MAN3DIR)/* "$(RELEASE_PATH)/man/man3"
 
 release_spec:
-
diff --git a/lib/compiler/doc/src/compile.xml b/lib/compiler/doc/src/compile.xml
index 10164890f2..b398871ddf 100644
--- a/lib/compiler/doc/src/compile.xml
+++ b/lib/compiler/doc/src/compile.xml
@@ -123,6 +123,17 @@
 	    in the Efficiency Guide.</p>
           </item>
 
+          <tag><c>{compile_info, [{atom(), term()}]}</c></tag>
+          <item>
+            <p>Allows compilers built on top of <c>compile</c> to attach
+            extra compilation metadata to the <c>compile_info</c> chunk
+            in the generated beam file.</p>
+
+            <p>It is advised for compilers to remove all non-deterministic
+            information if the <c>deterministic</c> option is supported and
+            it was supplied by the user.</p>
+          </item>
+
           <tag><c>compressed</c></tag>
           <item>
             <p>The compiler will compress the generated object code,
diff --git a/lib/compiler/doc/src/fascicules.xml b/lib/compiler/doc/src/fascicules.xml
deleted file mode 100644
index fadd37eefb..0000000000
--- a/lib/compiler/doc/src/fascicules.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/compiler/doc/src/note.gif b/lib/compiler/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/compiler/doc/src/note.gif
+++ /dev/null
diff --git a/lib/compiler/doc/src/notes.xml b/lib/compiler/doc/src/notes.xml
index bc335a9eaa..433fc3b86e 100644
--- a/lib/compiler/doc/src/notes.xml
+++ b/lib/compiler/doc/src/notes.xml
@@ -32,6 +32,77 @@
   <p>This document describes the changes made to the Compiler
     application.</p>
 
+<section><title>Compiler 7.1.3</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p>The compiler could issue an incorrect internal
+	    consistency failure diagnostic for some complicated bit
+	    syntax maches.</p>
+          <p>
+	    Own Id: OTP-14640 Aux Id: ERL-490 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Compiler 7.1.2</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p>Fail labels on guard BIFs weren't taken into account
+	    during an optimization pass, and a bug in the validation
+	    pass sometimes prevented this from being noticed when a
+	    fault occurred.</p>
+          <p>
+	    Own Id: OTP-14522 Aux Id: ERIERL-48 </p>
+        </item>
+        <item>
+          <p>
+	    When compiling from Core Erlang, an 'apply' with a nested
+	    apply in the function position would be treated as an
+	    invalid call. Corrected. (Thanks to Mikael Pettersson for
+	    reporting this bug.)</p>
+          <p>
+	    Own Id: OTP-14526</p>
+        </item>
+        <item>
+	    <p>Fixed checking of binary matching in the
+	    <c>beam_validator</c> module to ensure that potential
+	    compiler bugs are found at compile-time instead as
+	    emulator crash at run-time.</p>
+          <p>
+	    Own Id: OTP-14591</p>
+        </item>
+        <item>
+	    <p>There could be false warnings for
+	    <c>erlang:get_stacktrace/0</c> being used outside of a
+	    <c>try</c> block when using multiple <c>catch</c>
+	    clauses.</p>
+          <p>
+	    Own Id: OTP-14600 Aux Id: ERL-478 </p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+	    <p> The Erlang code linter no longer checks that the
+	    functions mentioned in <c>nowarn_deprecated_function</c>
+	    options are declared in the module. </p>
+          <p>
+	    Own Id: OTP-14378</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Compiler 7.1.1</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
@@ -223,6 +294,23 @@
 
 </section>
 
+<section><title>Compiler 7.0.4.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p>Fail labels on guard BIFs weren't taken into account
+	    during an optimization pass, and a bug in the validation
+	    pass sometimes prevented this from being noticed when a
+	    fault occurred.</p>
+          <p>
+	    Own Id: OTP-14522 Aux Id: ERIERL-48 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Compiler 7.0.4</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/compiler/doc/src/part_notes.xml b/lib/compiler/doc/src/part_notes.xml
deleted file mode 100644
index c1f0ff3861..0000000000
--- a/lib/compiler/doc/src/part_notes.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Compiler Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date>2004-09-07</date>
-    <rev>1.0</rev>
-  </header>
-  <description>
-    <p>The <em>Compiler</em> application compiles Erlang
-      code to byte-code. The highly compact byte-code is executed by
-      the Erlang emulator.</p>
-    <p>For information about older versions, see
-      <url href="part_notes_history_frame.html">Release Notes History</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/compiler/doc/src/part_notes_history.xml b/lib/compiler/doc/src/part_notes_history.xml
deleted file mode 100644
index 4019676b83..0000000000
--- a/lib/compiler/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2006</year>
-      <year>2016</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
- 
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>Compiler Release Notes History</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The <em>Compiler</em> application compiles Erlang
-      code to byte-code. The highly compact byte-code is executed by
-      the Erlang emulator.</p>
-  </description>
-  <include file="notes_history"></include>
-</part>
-
diff --git a/lib/compiler/doc/src/user_guide.gif b/lib/compiler/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/compiler/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/compiler/doc/src/warning.gif b/lib/compiler/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/compiler/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/compiler/src/Makefile b/lib/compiler/src/Makefile
index 9b22e5197b..9e96147787 100644
--- a/lib/compiler/src/Makefile
+++ b/lib/compiler/src/Makefile
@@ -93,16 +93,14 @@ MODULES =  \
 	v3_codegen \
 	v3_core \
 	v3_kernel \
-	v3_kernel_pp \
-	v3_life
+	v3_kernel_pp
 
 BEAM_H = $(wildcard ../priv/beam_h/*.h)
 
 HRL_FILES= \
 	beam_disasm.hrl \
 	core_parse.hrl \
-	v3_kernel.hrl \
-	v3_life.hrl
+	v3_kernel.hrl
 
 YRL_FILE = core_parse.yrl
 
@@ -187,7 +185,7 @@ release_docs_spec:
 # ---------------------------------------------------- 
 
 $(EBIN)/beam_disasm.beam: $(EGEN)/beam_opcodes.hrl beam_disasm.hrl
-$(EBIN)/beam_listing.beam: v3_life.hrl
+$(EBIN)/beam_listing.beam: core_parse.hrl v3_kernel.hrl
 $(EBIN)/beam_validator.beam: beam_disasm.hrl
 $(EBIN)/cerl.beam: core_parse.hrl
 $(EBIN)/compile.beam: core_parse.hrl ../../stdlib/include/erl_compile.hrl
@@ -200,8 +198,7 @@ $(EBIN)/sys_core_dsetel.beam: core_parse.hrl
 $(EBIN)/sys_core_fold.beam: core_parse.hrl
 $(EBIN)/sys_core_fold_lists.beam: core_parse.hrl
 $(EBIN)/sys_core_inline.beam: core_parse.hrl
-$(EBIN)/v3_codegen.beam: v3_life.hrl
+$(EBIN)/v3_codegen.beam: v3_kernel.hrl
 $(EBIN)/v3_core.beam: core_parse.hrl
 $(EBIN)/v3_kernel.beam: core_parse.hrl v3_kernel.hrl
 $(EBIN)/v3_kernel_pp.beam: v3_kernel.hrl
-$(EBIN)/v3_life.beam: v3_kernel.hrl v3_life.hrl
diff --git a/lib/compiler/src/beam_asm.erl b/lib/compiler/src/beam_asm.erl
index c35efdfc9d..9ecbb7884c 100644
--- a/lib/compiler/src/beam_asm.erl
+++ b/lib/compiler/src/beam_asm.erl
@@ -21,7 +21,7 @@
 
 -module(beam_asm).
 
--export([module/5]).
+-export([module/4]).
 -export([encode/2]).
 
 -export_type([fail/0,label/0,reg/0,src/0,module_code/0,function_name/0]).
@@ -55,20 +55,20 @@
 -type module_code() ::
         {module(),[_],[_],[asm_function()],pos_integer()}.
 
--spec module(module_code(), [{binary(), binary()}], [_], [compile:option()], [compile:option()]) ->
+-spec module(module_code(), [{binary(), binary()}], [{atom(),term()}], [compile:option()]) ->
                     {'ok',binary()}.
 
-module(Code, ExtraChunks, SourceFile, Opts, CompilerOpts) ->
-    {ok,assemble(Code, ExtraChunks, SourceFile, Opts, CompilerOpts)}.
+module(Code, ExtraChunks, CompileInfo, CompilerOpts) ->
+    {ok,assemble(Code, ExtraChunks, CompileInfo, CompilerOpts)}.
 
-assemble({Mod,Exp0,Attr0,Asm0,NumLabels}, ExtraChunks, SourceFile, Opts, CompilerOpts) ->
+assemble({Mod,Exp0,Attr0,Asm0,NumLabels}, ExtraChunks, CompileInfo, CompilerOpts) ->
     {1,Dict0} = beam_dict:atom(Mod, beam_dict:new()),
     {0,Dict1} = beam_dict:fname(atom_to_list(Mod) ++ ".erl", Dict0),
     NumFuncs = length(Asm0),
     {Asm,Attr} = on_load(Asm0, Attr0),
     Exp = cerl_sets:from_list(Exp0),
     {Code,Dict2} = assemble_1(Asm, Exp, Dict1, []),
-    build_file(Code, Attr, Dict2, NumLabels, NumFuncs, ExtraChunks, SourceFile, Opts, CompilerOpts).
+    build_file(Code, Attr, Dict2, NumLabels, NumFuncs, ExtraChunks, CompileInfo, CompilerOpts).
 
 on_load(Fs0, Attr0) ->
     case proplists:get_value(on_load, Attr0) of
@@ -111,7 +111,7 @@ assemble_function([H|T], Acc, Dict0) ->
 assemble_function([], Code, Dict) ->
     {Code, Dict}.
 
-build_file(Code, Attr, Dict, NumLabels, NumFuncs, ExtraChunks, SourceFile, Opts, CompilerOpts) ->
+build_file(Code, Attr, Dict, NumLabels, NumFuncs, ExtraChunks, CompileInfo, CompilerOpts) ->
     %% Create the code chunk.
 
     CodeChunk = chunk(<<"Code">>,
@@ -182,7 +182,7 @@ build_file(Code, Attr, Dict, NumLabels, NumFuncs, ExtraChunks, SourceFile, Opts,
     Essentials1 = [iolist_to_binary(C) || C <- Essentials0],
     MD5 = module_md5(Essentials1),
     Essentials = finalize_fun_table(Essentials1, MD5),
-    {Attributes,Compile} = build_attributes(Opts, SourceFile, Attr, MD5),
+    {Attributes,Compile} = build_attributes(Attr, CompileInfo, MD5),
     AttrChunk = chunk(<<"Attr">>, Attributes),
     CompileChunk = chunk(<<"CInf">>, Compile),
 
@@ -192,7 +192,7 @@ build_file(Code, Attr, Dict, NumLabels, NumFuncs, ExtraChunks, SourceFile, Opts,
 
     %% Create IFF chunk.
 
-    Chunks = case member(slim, Opts) of
+    Chunks = case member(slim, CompilerOpts) of
 		 true ->
 		     [Essentials,AttrChunk];
 		 false ->
@@ -264,22 +264,10 @@ flatten_exports(Exps) ->
 flatten_imports(Imps) ->
     list_to_binary(map(fun({M,F,A}) -> <<M:32,F:32,A:32>> end, Imps)).
 
-build_attributes(Opts, SourceFile, Attr, MD5) ->
-    Misc0 = case SourceFile of
-		[] -> [];
-		[_|_] -> [{source,SourceFile}]
-	    end,
-    Misc = case member(slim, Opts) of
-	       false -> Misc0;
-	       true -> []
-	   end,
-    Compile = case member(deterministic, Opts) of
-		  false ->
-		      [{options,Opts},{version,?COMPILER_VSN}|Misc];
-		  true ->
-		      [{version,?COMPILER_VSN}]
-	      end,
-    {term_to_binary(set_vsn_attribute(Attr, MD5)),term_to_binary(Compile)}.
+build_attributes(Attr, Compile, MD5) ->
+    AttrBinary = term_to_binary(set_vsn_attribute(Attr, MD5)),
+    CompileBinary = term_to_binary([{version,?COMPILER_VSN}|Compile]),
+    {AttrBinary,CompileBinary}.
 
 build_line_table(Dict) ->
     {NumLineInstrs,NumFnames0,Fnames0,NumLines,Lines0} =
diff --git a/lib/compiler/src/beam_listing.erl b/lib/compiler/src/beam_listing.erl
index 94b47cf568..9422f9a78a 100644
--- a/lib/compiler/src/beam_listing.erl
+++ b/lib/compiler/src/beam_listing.erl
@@ -23,14 +23,12 @@
 
 -include("core_parse.hrl").
 -include("v3_kernel.hrl").
--include("v3_life.hrl").
 
 -import(lists, [foreach/2]).
 
 -type code() :: cerl:c_module()
               | beam_utils:module_code()
               | #k_mdef{}
-              | {module(),_,_,_}                %v3_life
               | [_].                            %form-based format
 
 -spec module(file:io_device(), code()) -> 'ok'.
@@ -42,13 +40,9 @@ module(File, #k_mdef{}=Kern) ->
     %% This is a kernel module.
     io:put_chars(File, v3_kernel_pp:format(Kern));
     %%io:put_chars(File, io_lib:format("~p~n", [Kern]));
-module(File, {Mod,Exp,Attr,Kern}) ->
-    %% This is output from beam_life (v3).
-    io:fwrite(File, "~w.~n~p.~n~p.~n", [Mod,Exp,Attr]),
-    foreach(fun (F) -> function(File, F) end, Kern);
 module(Stream, {Mod,Exp,Attr,Code,NumLabels}) ->
-    %% This is output from beam_codegen.
-    io:format(Stream, "{module, ~p}.  %% version = ~w\n", 
+    %% This is output from v3_codegen.
+    io:format(Stream, "{module, ~p}.  %% version = ~w\n",
 	      [Mod, beam_opcodes:format_number()]),
     io:format(Stream, "\n{exports, ~p}.\n", [Exp]),
     io:format(Stream, "\n{attributes, ~p}.\n", [Attr]),
@@ -68,60 +62,3 @@ format_asm([{label,L}|Is]) ->
 format_asm([I|Is]) ->
     [io_lib:format("    ~p", [I]),".\n"|format_asm(Is)];
 format_asm([]) -> [].
-
-function(File, {function,Name,Arity,Args,Body,Vdb,_Anno}) ->
-    io:nl(File),
-    io:format(File, "function ~p/~p.\n", [Name,Arity]),
-    io:format(File, " ~p.\n", [Args]),
-    print_vdb(File, Vdb),
-    put(beam_listing_nl, false),
-    nl(File),
-    foreach(fun(F) -> format(File, F, []) end, Body),
-    nl(File),
-    erase(beam_listing_nl).
-
-format(File, #l{ke=Ke,i=I,vdb=Vdb}, Ind) ->
-    nl(File),
-    ind_format(File, Ind, "~p ", [I]),
-    print_vdb(File, Vdb),
-    nl(File),
-    format(File, Ke, Ind);
-format(File, Tuple, Ind) when is_tuple(Tuple) ->
-    ind_format(File, Ind, "{", []),
-    format_list(File, tuple_to_list(Tuple), [$\s|Ind]),
-    ind_format(File, Ind, "}", []);
-format(File, List, Ind) when is_list(List) ->
-    ind_format(File, Ind, "[", []),
-    format_list(File, List, [$\s|Ind]),
-    ind_format(File, Ind, "]", []);
-format(File, F, Ind) ->
-    ind_format(File, Ind, "~p", [F]).
-
-format_list(File, [F], Ind) ->
-    format(File, F, Ind);
-format_list(File, [F|Fs], Ind) ->
-    format(File, F, Ind),
-    ind_format(File, Ind, ",", []),
-    format_list(File, Fs, Ind);
-format_list(_, [], _) -> ok.
-
-
-print_vdb(File, [{Var,F,E}|Vs]) ->
-    io:format(File, "~p:~p..~p ", [Var,F,E]),
-    print_vdb(File, Vs);
-print_vdb(_, []) -> ok.
-
-ind_format(File, Ind, Format, Args) ->
-    case get(beam_listing_nl) of
-	true ->
-	    put(beam_listing_nl, false),
-	    io:put_chars(File, Ind);
-	false -> ok
-    end,
-    io:format(File, Format, Args).
-    
-nl(File) ->
-    case put(beam_listing_nl, true) of
-	true -> ok;
-	false -> io:nl(File)
-    end.
diff --git a/lib/compiler/src/beam_peep.erl b/lib/compiler/src/beam_peep.erl
index 6df5c02334..9436c20b36 100644
--- a/lib/compiler/src/beam_peep.erl
+++ b/lib/compiler/src/beam_peep.erl
@@ -89,15 +89,37 @@ peep([{gc_bif,_,_,_,_,Dst}=I|Is], SeenTests0, Acc) ->
 peep([{jump,{f,L}},{label,L}=I|Is], _, Acc) ->
     %% Sometimes beam_jump has missed this optimization.
     peep(Is, gb_sets:empty(), [I|Acc]);
-peep([{select,Op,R,F,Vls0}|Is], _, Acc) ->
+peep([{select,Op,R,F,Vls0}|Is], SeenTests0, Acc0) ->
     case prune_redundant_values(Vls0, F) of
 	[] ->
 	    %% No values left. Must convert to plain jump.
 	    I = {jump,F},
-	    peep(Is, gb_sets:empty(), [I|Acc]);
+	    peep([I|Is], gb_sets:empty(), Acc0);
+        [{atom,_}=Value,Lbl] when Op =:= select_val ->
+            %% Single value left. Convert to regular test and pop redundant tests.
+            Is1 = [{test,is_eq_exact,F,[R,Value]},{jump,Lbl}|Is],
+            case Acc0 of
+                [{test,is_atom,F,[R]}|Acc] ->
+                    peep(Is1, SeenTests0, Acc);
+                _ ->
+                    peep(Is1, SeenTests0, Acc0)
+            end;
+        [{integer,_}=Value,Lbl] when Op =:= select_val ->
+            %% Single value left. Convert to regular test and pop redundant tests.
+            Is1 = [{test,is_eq_exact,F,[R,Value]},{jump,Lbl}|Is],
+            case Acc0 of
+                [{test,is_integer,F,[R]}|Acc] ->
+                    peep(Is1, SeenTests0, Acc);
+                _ ->
+                    peep(Is1, SeenTests0, Acc0)
+            end;
+        [Arity,Lbl] when Op =:= select_tuple_arity ->
+            %% Single value left. Convert to regular test
+            Is1 = [{test,test_arity,F,[R,Arity]},{jump,Lbl}|Is],
+            peep(Is1, SeenTests0, Acc0);
 	[_|_]=Vls ->
 	    I = {select,Op,R,F,Vls},
-	    peep(Is, gb_sets:empty(), [I|Acc])
+	    peep(Is, gb_sets:empty(), [I|Acc0])
     end;
 peep([{test,Op,_,Ops}=I|Is], SeenTests0, Acc) ->
     case beam_utils:is_pure_test(I) of
diff --git a/lib/compiler/src/beam_receive.erl b/lib/compiler/src/beam_receive.erl
index 1403e1e05e..468460eedf 100644
--- a/lib/compiler/src/beam_receive.erl
+++ b/lib/compiler/src/beam_receive.erl
@@ -207,6 +207,8 @@ opt_update_regs({label,Lbl}, R, L) ->
 	    %% A catch label for a previously seen catch instruction is OK.
 	    {R,L}
     end;
+opt_update_regs({'try',_,{f,Lbl}}, R, L) ->
+    {R,gb_sets:add(Lbl, L)};
 opt_update_regs({try_end,_}, R, L) ->
     {R,L};
 opt_update_regs({line,_}, R, L) ->
diff --git a/lib/compiler/src/beam_utils.erl b/lib/compiler/src/beam_utils.erl
index 52ed1c7ca0..00f396c246 100644
--- a/lib/compiler/src/beam_utils.erl
+++ b/lib/compiler/src/beam_utils.erl
@@ -32,6 +32,11 @@
 
 -import(lists, [map/2,member/2,sort/1,reverse/1,splitwith/2]).
 
+-define(is_const(Val), (element(1, Val) =:= integer orelse
+                        element(1, Val) =:= float orelse
+                        element(1, Val) =:= atom orelse
+                        element(1, Val) =:= literal)).
+
 %% instruction() describes all instructions that are used during optimzation
 %% (from beam_a to beam_z).
 -type instruction() :: atom() | tuple().
@@ -197,10 +202,20 @@ bif_to_test('>', [A,B], Fail) -> {test,is_lt,Fail,[B,A]};
 bif_to_test('<', [_,_]=Ops, Fail) -> {test,is_lt,Fail,Ops};
 bif_to_test('>=', [_,_]=Ops, Fail) -> {test,is_ge,Fail,Ops};
 bif_to_test('==', [A,nil], Fail) -> {test,is_nil,Fail,[A]};
+bif_to_test('==', [nil,A], Fail) -> {test,is_nil,Fail,[A]};
+bif_to_test('==', [C,A], Fail) when ?is_const(C) ->
+    {test,is_eq,Fail,[A,C]};
 bif_to_test('==', [_,_]=Ops, Fail) -> {test,is_eq,Fail,Ops};
+bif_to_test('/=', [C,A], Fail) when ?is_const(C) ->
+    {test,is_ne,Fail,[A,C]};
 bif_to_test('/=', [_,_]=Ops, Fail) -> {test,is_ne,Fail,Ops};
 bif_to_test('=:=', [A,nil], Fail) -> {test,is_nil,Fail,[A]};
+bif_to_test('=:=', [nil,A], Fail) -> {test,is_nil,Fail,[A]};
+bif_to_test('=:=', [C,A], Fail) when ?is_const(C) ->
+    {test,is_eq_exact,Fail,[A,C]};
 bif_to_test('=:=', [_,_]=Ops, Fail) -> {test,is_eq_exact,Fail,Ops};
+bif_to_test('=/=', [C,A], Fail) when ?is_const(C) ->
+    {test,is_ne_exact,Fail,[A,C]};
 bif_to_test('=/=', [_,_]=Ops, Fail) -> {test,is_ne_exact,Fail,Ops};
 bif_to_test(is_record, [_,_,_]=Ops, Fail) -> {test,is_record,Fail,Ops}.
 
@@ -810,8 +825,14 @@ live_opt([{select,_,Src,Fail,List}=I|Is], Regs0, D, Acc) ->
     Regs1 = x_live([Src], Regs0),
     Regs = live_join_labels([Fail|List], D, Regs1),
     live_opt(Is, Regs, D, [I|Acc]);
-live_opt([{try_case,_}=I|Is], _, D, Acc) ->
-    live_opt(Is, live_call(1), D, [I|Acc]);
+live_opt([{try_case,Y}=I|Is], Regs0, D, Acc) ->
+    Regs = live_call(1),
+    case Regs0 of
+        0 ->
+            live_opt(Is, Regs, D, [{try_end,Y}|Acc]);
+        _ ->
+            live_opt(Is, live_call(1), D, [I|Acc])
+    end;
 live_opt([{loop_rec,_Fail,_Dst}=I|Is], _, D, Acc) ->
     live_opt(Is, 0, D, [I|Acc]);
 live_opt([timeout=I|Is], _, D, Acc) ->
diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl
index 622e00bb2b..be8908dd6b 100644
--- a/lib/compiler/src/beam_validator.erl
+++ b/lib/compiler/src/beam_validator.erl
@@ -1430,13 +1430,13 @@ merge_types(bool, {atom,A}) ->
     merge_bool(A);
 merge_types({atom,A}, bool) ->
     merge_bool(A);
-merge_types(#ms{id=Id,valid=B0,slots=Slots}=M,
-	    #ms{id=Id,valid=B1,slots=Slots}) ->
-    M#ms{valid=B0 bor B1,slots=Slots};
-merge_types(#ms{}=M, _) ->
-    M;
-merge_types(_, #ms{}=M) ->
-    M;
+merge_types(#ms{id=Id1,valid=B1,slots=Slots1},
+	    #ms{id=Id2,valid=B2,slots=Slots2}) ->
+    Id = if
+             Id1 =:= Id2 -> Id1;
+             true -> make_ref()
+         end,
+    #ms{id=Id,valid=B1 band B2,slots=min(Slots1, Slots2)};
 merge_types(T1, T2) when T1 =/= T2 ->
     %% Too different. All we know is that the type is a 'term'.
     term.
diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl
index ec7e7aed14..bc519264fc 100644
--- a/lib/compiler/src/compile.erl
+++ b/lib/compiler/src/compile.erl
@@ -733,8 +733,6 @@ kernel_passes() ->
      ?pass(v3_kernel),
      {iff,dkern,{listing,"kernel"}},
      {iff,'to_kernel',{done,"kernel"}},
-     {pass,v3_life},
-     {iff,dlife,{listing,"life"}},
      {pass,v3_codegen},
      {iff,dcg,{listing,"codegen"}}
      | asm_passes()].
@@ -1448,15 +1446,33 @@ save_core_code(Code, St) ->
 beam_asm(Code0, #compile{ifile=File,extra_chunks=ExtraChunks,options=CompilerOpts}=St) ->
     case debug_info(St) of
 	{ok,DebugInfo,Opts0} ->
-	    Source = paranoid_absname(File),
 	    Opts1 = [O || O <- Opts0, effects_code_generation(O)],
 	    Chunks = [{<<"Dbgi">>, DebugInfo} | ExtraChunks],
-	    {ok,Code} = beam_asm:module(Code0, Chunks, Source, Opts1, CompilerOpts),
+	    CompileInfo = compile_info(File, Opts1),
+	    {ok,Code} = beam_asm:module(Code0, Chunks, CompileInfo, CompilerOpts),
 	    {ok,Code,St#compile{abstract_code=[]}};
 	{error,Es} ->
 	    {error,St#compile{errors=St#compile.errors ++ [{File,Es}]}}
     end.
 
+compile_info(File, Opts) ->
+    IsSlim = member(slim, Opts),
+    IsDeterministic = member(deterministic, Opts),
+    Info0 = proplists:get_value(compile_info, Opts, []),
+    Info1 =
+	case paranoid_absname(File) of
+	    [_|_] = Source when not IsSlim, not IsDeterministic ->
+		[{source,Source} | Info0];
+	    _ ->
+		Info0
+	end,
+    Info2 =
+	case IsDeterministic of
+	    false -> [{options,proplists:delete(compile_info, Opts)} | Info1];
+	    true -> Info1
+	end,
+    Info2.
+
 paranoid_absname(""=File) ->
     File;
 paranoid_absname(File) ->
@@ -1929,7 +1945,6 @@ pre_load() ->
 	 sys_core_fold,
 	 v3_codegen,
 	 v3_core,
-	 v3_kernel,
-	 v3_life],
+	 v3_kernel],
     _ = code:ensure_modules_loaded(L),
     ok.
diff --git a/lib/compiler/src/compiler.app.src b/lib/compiler/src/compiler.app.src
index 703cf1d1b8..cf32fd251c 100644
--- a/lib/compiler/src/compiler.app.src
+++ b/lib/compiler/src/compiler.app.src
@@ -68,8 +68,7 @@
 	     v3_codegen,
 	     v3_core,
 	     v3_kernel,
-	     v3_kernel_pp,
-	     v3_life
+	     v3_kernel_pp
 	    ]},
   {registered, []},
   {applications, [kernel, stdlib]},
diff --git a/lib/compiler/src/core_pp.erl b/lib/compiler/src/core_pp.erl
index cff6c7098b..2516a9a1e1 100644
--- a/lib/compiler/src/core_pp.erl
+++ b/lib/compiler/src/core_pp.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2017. All Rights Reserved.
 %% 
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -464,7 +464,7 @@ indent(#ctxt{indent=N}) ->
 	N =< 0 ->
 	    "";
 	true ->
-	    string:chars($\t, N div ?TAB_WIDTH, spaces(N rem ?TAB_WIDTH))
+           lists:duplicate(N div ?TAB_WIDTH, $\t) ++ spaces(N rem ?TAB_WIDTH)
     end.
 
 nl_indent(Ctxt) -> [$\n|indent(Ctxt)].
diff --git a/lib/compiler/src/core_scan.erl b/lib/compiler/src/core_scan.erl
index 9f0676538f..a50a2ffa8d 100644
--- a/lib/compiler/src/core_scan.erl
+++ b/lib/compiler/src/core_scan.erl
@@ -200,8 +200,8 @@ pre_string(eof, Q, _, Sp, SoFar, Pos) ->
     pre_string_error(Q, Sp, SoFar, Pos).
 
 pre_string_error(Q, Sp, SoFar, Pos) ->
-    S = reverse(string:substr(SoFar, 1, string:chr(SoFar, Q)-1)),
-    pre_error({string,Q,string:substr(S, 1, 16)}, Sp, Pos).
+    [S,_] = string:split(SoFar, [Q]),
+    pre_error({string,Q,string:slice(string:reverse(S), 0, 16)}, Sp, Pos).
 
 pre_char([C|Cs], SoFar) -> pre_char(C, Cs, SoFar);
 pre_char([], _) -> more;
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl
index f3f315935a..df880ff784 100644
--- a/lib/compiler/src/sys_core_fold.erl
+++ b/lib/compiler/src/sys_core_fold.erl
@@ -418,6 +418,15 @@ expr(#c_call{module=M0,name=N0}=Call0, Ctxt, Sub) ->
 expr(#c_primop{args=As0}=Prim, _, Sub) ->
     As1 = expr_list(As0, value, Sub),
     Prim#c_primop{args=As1};
+expr(#c_catch{anno=Anno,body=B}, effect, Sub) ->
+    %% When the return value of the 'catch' is ignored, we can replace it
+    %% with a try/catch to avoid building a stack trace when an exception
+    %% occurs.
+    Var = #c_var{name='catch_value'},
+    Evs = [#c_var{name='Class'},#c_var{name='Reason'},#c_var{name='Stk'}],
+    Try = #c_try{anno=Anno,arg=B,vars=[Var],body=Var,
+                 evars=Evs,handler=void()},
+    expr(Try, effect, Sub);
 expr(#c_catch{body=B0}=Catch, _, Sub) ->
     %% We can remove catch if the value is simple
     B1 = body(B0, value, Sub),
diff --git a/lib/compiler/src/v3_codegen.erl b/lib/compiler/src/v3_codegen.erl
index 47c1567f10..006a6a82d2 100644
--- a/lib/compiler/src/v3_codegen.erl
+++ b/lib/compiler/src/v3_codegen.erl
@@ -19,25 +19,6 @@
 %%
 %% Purpose : Code generator for Beam.
 
-%% The following assumptions have been made:
-%%
-%% 1. Matches, i.e. things with {match,M,Ret} wrappers, only return
-%% values; no variables are exported. If the match would have returned
-%% extra variables then these have been transformed to multiple return
-%% values.
-%% 
-%% 2. All BIF's called in guards are gc-safe so there is no need to
-%% put thing on the stack in the guard.  While this would in principle
-%% work it would be difficult to keep track of the stack depth when
-%% trimming.
-%%
-%% The code generation uses variable lifetime information added by
-%% the v3_life module to save variables, allocate registers and 
-%% move registers to the stack when necessary.
-%%
-%% We try to use a consistent variable name scheme throughout.  The
-%% StackReg record is always called Bef,Int<n>,Aft.
-
 -module(v3_codegen).
 
 %% The main interface.
@@ -45,12 +26,14 @@
 
 -import(lists, [member/2,keymember/3,keysort/2,keydelete/3,
 		append/1,flatmap/2,filter/2,foldl/3,foldr/3,mapfoldl/3,
-		sort/1,reverse/1,reverse/2]).
--import(v3_life, [vdb_find/2]).
+		sort/1,reverse/1,reverse/2,map/2]).
+-import(ordsets, [add_element/2,intersection/2,union/2]).
 
-%%-compile([export_all]).
+-include("v3_kernel.hrl").
 
--include("v3_life.hrl").
+%% These are not defined in v3_kernel.hrl.
+get_kanno(Kthing) -> element(2, Kthing).
+set_kanno(Kthing, Anno) -> setelement(2, Kthing, Anno).
 
 %% Main codegen structure.
 -record(cg, {lcount=1,				%Label counter
@@ -61,38 +44,273 @@
 	     functable=#{},	                %Map of local functions: {Name,Arity}=>Label
 	     in_catch=false,			%Inside a catch or not.
 	     need_frame,			%Need a stack frame.
-	     ultimate_failure			%Label for ultimate match failure.
-	    }).			
+	     ultimate_failure,			%Label for ultimate match failure.
+             ctx                                %Match context.
+	    }).
 
 %% Stack/register state record.
 -record(sr, {reg=[],				%Register table
 	     stk=[],				%Stack table
 	     res=[]}).				%Reserved regs: [{reserved,I,V}]
 
--type life_module() :: {module(),_,_,[_]}.
+%% Internal records.
+-record(cg_need_heap, {anno=[] :: term(),
+                       h=0 :: integer()}).
+-record(cg_block, {anno=[] :: term(),
+                   es=[] :: [term()]}).
 
--spec module(life_module(), [compile:option()]) -> {'ok',beam_asm:module_code()}.
+-type vdb_entry() :: {atom(),non_neg_integer(),non_neg_integer()}.
 
-module({Mod,Exp,Attr,Forms}, _Options) ->
-    {Fs,St} = functions(Forms, {atom,Mod}),
-    {ok,{Mod,Exp,Attr,Fs,St#cg.lcount}}.
+-record(l, {i=0 :: non_neg_integer(),           %Op number
+	    vdb=[] :: [vdb_entry()],            %Variable database
+	    a=[] :: [term()]}).                 %Core annotation
+
+-spec module(#k_mdef{}, [compile:option()]) -> {'ok',beam_asm:module_code()}.
+
+module(#k_mdef{name=Mod,exports=Es,attributes=Attr,body=Forms}, _Opts) ->
+    {Asm,St} = functions(Forms, {atom,Mod}),
+    {ok,{Mod,Es,Attr,Asm,St#cg.lcount}}.
 
 functions(Forms, AtomMod) ->
     mapfoldl(fun (F, St) -> function(F, AtomMod, St) end, #cg{lcount=1}, Forms).
 
-function({function,Name,Arity,Asm0,Vb,Vdb,Anno}, AtomMod, St0) ->
+function(#k_fdef{anno=#k{a=Anno},func=Name,arity=Arity,
+                 vars=As,body=Kb}, AtomMod, St0) ->
     try
-	{Asm,EntryLabel,St} = cg_fun(Vb, Asm0, Vdb, AtomMod,
-				     {Name,Arity}, Anno, St0),
-	Func = {function,Name,Arity,EntryLabel,Asm},
-	{Func,St}
+        %% Annotate kernel records with variable usage.
+        #k_match{} = Kb,                   %Assertion.
+        Vdb0 = init_vars(As),
+        {Body,_,Vdb} = body(Kb, 1, Vdb0),
+
+        %% Generate the BEAM assembly code.
+        {Asm,EntryLabel,St} = cg_fun(Body, As, Vdb, AtomMod,
+                                     {Name,Arity}, Anno, St0),
+        Func = {function,Name,Arity,EntryLabel,Asm},
+        {Func,St}
     catch
-	Class:Error ->
-	    Stack = erlang:get_stacktrace(),
-	    io:fwrite("Function: ~w/~w\n", [Name,Arity]),
-	    erlang:raise(Class, Error, Stack)
+        Class:Error ->
+            Stack = erlang:get_stacktrace(),
+            io:fwrite("Function: ~w/~w\n", [Name,Arity]),
+            erlang:raise(Class, Error, Stack)
     end.
 
+%% This pass creates beam format annotated with variable lifetime
+%% information.  Each thing is given an index and for each variable we
+%% store the first and last index for its occurrence.  The variable
+%% database, VDB, attached to each thing is only relevant internally
+%% for that thing.
+%%
+%% For nested things like matches the numbering continues locally and
+%% the VDB for that thing refers to the variable usage within that
+%% thing.  Variables which live through a such a thing are internally
+%% given a very large last index.  Internally the indexes continue
+%% after the index of that thing.  This creates no problems as the
+%% internal variable info never escapes and externally we only see
+%% variable which are alive both before or after.
+%%
+%% This means that variables never "escape" from a thing and the only
+%% way to get values from a thing is to "return" them, with 'break' or
+%% 'return'.  Externally these values become the return values of the
+%% thing.  This is no real limitation as most nested things have
+%% multiple threads so working out a common best variable usage is
+%% difficult.
+
+%% body(Kbody, I, Vdb) -> {[Expr],MaxI,Vdb}.
+%%  Handle a body.
+
+body(#k_seq{arg=Ke,body=Kb}, I, Vdb0) ->
+    %%ok = io:fwrite("life ~w:~p~n", [?LINE,{Ke,I,Vdb0}]),
+    A = get_kanno(Ke),
+    Vdb1 = use_vars(union(A#k.us, A#k.ns), I, Vdb0),
+    {Es,MaxI,Vdb2} = body(Kb, I+1, Vdb1),
+    E = expr(Ke, I, Vdb2),
+    {[E|Es],MaxI,Vdb2};
+body(Ke, I, Vdb0) ->
+    %%ok = io:fwrite("life ~w:~p~n", [?LINE,{Ke,I,Vdb0}]),
+    A = get_kanno(Ke),
+    Vdb1 = use_vars(union(A#k.us, A#k.ns), I, Vdb0),
+    E = expr(Ke, I, Vdb1),
+    {[E],I,Vdb1}.
+
+%% expr(Kexpr, I, Vdb) -> Expr.
+
+expr(#k_test{anno=A}=Test, I, _Vdb) ->
+    Test#k_test{anno=#l{i=I,a=A#k.a}};
+expr(#k_call{anno=A}=Call, I, _Vdb) ->
+    Call#k_call{anno=#l{i=I,a=A#k.a}};
+expr(#k_enter{anno=A}=Enter, I, _Vdb) ->
+    Enter#k_enter{anno=#l{i=I,a=A#k.a}};
+expr(#k_bif{anno=A}=Bif, I, _Vdb) ->
+    Bif#k_bif{anno=#l{i=I,a=A#k.a}};
+expr(#k_match{anno=A,body=Kb,ret=Rs}, I, Vdb) ->
+    %% Work out imported variables which need to be locked.
+    Mdb = vdb_sub(I, I+1, Vdb),
+    M = match(Kb, A#k.us, I+1, Mdb),
+    L = #l{i=I,vdb=use_vars(A#k.us, I+1, Mdb),a=A#k.a},
+    #k_match{anno=L,body=M,ret=Rs};
+expr(#k_guard_match{anno=A,body=Kb,ret=Rs}, I, Vdb) ->
+    %% Work out imported variables which need to be locked.
+    Mdb = vdb_sub(I, I+1, Vdb),
+    M = match(Kb, A#k.us, I+1, Mdb),
+    L = #l{i=I,vdb=use_vars(A#k.us, I+1, Mdb),a=A#k.a},
+    #k_guard_match{anno=L,body=M,ret=Rs};
+expr(#k_protected{}=Protected, I, Vdb) ->
+    protected(Protected, I, Vdb);
+expr(#k_try{anno=A,arg=Ka,vars=Vs,body=Kb,evars=Evs,handler=Kh}=Try, I, Vdb) ->
+    %% Lock variables that are alive before the catch and used afterwards.
+    %% Don't lock variables that are only used inside the try.
+    Tdb0 = vdb_sub(I, I+1, Vdb),
+    %% This is the tricky bit. Lock variables in Arg that are used in
+    %% the body and handler. Add try tag 'variable'.
+    Ab = get_kanno(Kb),
+    Ah = get_kanno(Kh),
+    Tdb1 = use_vars(union(Ab#k.us, Ah#k.us), I+3, Tdb0),
+    Tdb2 = vdb_sub(I, I+2, Tdb1),
+    Vnames = fun (Kvar) -> Kvar#k_var.name end,	%Get the variable names
+    {Aes,_,Adb} = body(Ka, I+2, add_var({catch_tag,I+1}, I+1, locked, Tdb2)),
+    {Bes,_,Bdb} = body(Kb, I+4, new_vars(sort(map(Vnames, Vs)), I+3, Tdb2)),
+    {Hes,_,Hdb} = body(Kh, I+4, new_vars(sort(map(Vnames, Evs)), I+3, Tdb2)),
+    L = #l{i=I,vdb=Tdb1,a=A#k.a},
+    Try#k_try{anno=L,
+              arg=#cg_block{es=Aes,anno=#l{i=I+1,vdb=Adb,a=[]}},
+              vars=Vs,body=#cg_block{es=Bes,anno=#l{i=I+3,vdb=Bdb,a=[]}},
+              evars=Evs,handler=#cg_block{es=Hes,anno=#l{i=I+3,vdb=Hdb,a=[]}}};
+expr(#k_try_enter{anno=A,arg=Ka,vars=Vs,body=Kb,evars=Evs,handler=Kh}, I, Vdb) ->
+    %% Lock variables that are alive before the catch and used afterwards.
+    %% Don't lock variables that are only used inside the try.
+    Tdb0 = vdb_sub(I, I+1, Vdb),
+    %% This is the tricky bit. Lock variables in Arg that are used in
+    %% the body and handler. Add try tag 'variable'.
+    Ab = get_kanno(Kb),
+    Ah = get_kanno(Kh),
+    Tdb1 = use_vars(union(Ab#k.us, Ah#k.us), I+3, Tdb0),
+    Tdb2 = vdb_sub(I, I+2, Tdb1),
+    Vnames = fun (Kvar) -> Kvar#k_var.name end,	%Get the variable names
+    {Aes,_,Adb} = body(Ka, I+2, add_var({catch_tag,I+1}, I+1, 1000000, Tdb2)),
+    {Bes,_,Bdb} = body(Kb, I+4, new_vars(sort(map(Vnames, Vs)), I+3, Tdb2)),
+    {Hes,_,Hdb} = body(Kh, I+4, new_vars(sort(map(Vnames, Evs)), I+3, Tdb2)),
+    L = #l{i=I,vdb=Tdb1,a=A#k.a},
+    #k_try_enter{anno=L,
+                 arg=#cg_block{es=Aes,anno=#l{i=I+1,vdb=Adb,a=[]}},
+                 vars=Vs,body=#cg_block{es=Bes,anno=#l{i=I+3,vdb=Bdb,a=[]}},
+                 evars=Evs,handler=#cg_block{es=Hes,anno=#l{i=I+3,vdb=Hdb,a=[]}}};
+expr(#k_catch{anno=A,body=Kb}=Catch, I, Vdb) ->
+    %% Lock variables that are alive before the catch and used afterwards.
+    %% Don't lock variables that are only used inside the catch.
+    %% Add catch tag 'variable'.
+    Cdb0 = vdb_sub(I, I+1, Vdb),
+    {Es,_,Cdb1} = body(Kb, I+1, add_var({catch_tag,I}, I, locked, Cdb0)),
+    L = #l{i=I,vdb=Cdb1,a=A#k.a},
+    Catch#k_catch{anno=L,body=#cg_block{es=Es}};
+expr(#k_receive{anno=A,var=V,body=Kb,action=Ka}=Recv, I, Vdb) ->
+    %% Work out imported variables which need to be locked.
+    Rdb = vdb_sub(I, I+1, Vdb),
+    M = match(Kb, add_element(V#k_var.name, A#k.us), I+1,
+              new_vars([V#k_var.name], I, Rdb)),
+    {Tes,_,Adb} = body(Ka, I+1, Rdb),
+    Le = #l{i=I,vdb=use_vars(A#k.us, I+1, Vdb),a=A#k.a},
+    Recv#k_receive{anno=Le,body=M,
+                   action=#cg_block{anno=#l{i=I+1,vdb=Adb,a=[]},es=Tes}};
+expr(#k_receive_accept{anno=A}, I, _Vdb) ->
+    #k_receive_accept{anno=#l{i=I,a=A#k.a}};
+expr(#k_receive_next{anno=A}, I, _Vdb) ->
+    #k_receive_next{anno=#l{i=I,a=A#k.a}};
+expr(#k_put{anno=A}=Put, I, _Vdb) ->
+    Put#k_put{anno=#l{i=I,a=A#k.a}};
+expr(#k_break{anno=A}=Break, I, _Vdb) ->
+    Break#k_break{anno=#l{i=I,a=A#k.a}};
+expr(#k_guard_break{anno=A}=Break, I, Vdb) ->
+    Locked = [V || {V,_,_} <- Vdb],
+    L = #l{i=I,a=A#k.a},
+    Break#k_guard_break{anno=L,locked=Locked};
+expr(#k_return{anno=A}=Ret, I, _Vdb) ->
+    Ret#k_return{anno=#l{i=I,a=A#k.a}}.
+
+%% protected(Kprotected, I, Vdb) -> Protected.
+%%  Only used in guards.
+
+protected(#k_protected{anno=A,arg=Ts}=Prot, I, Vdb) ->
+    %% Lock variables that are alive before try and used afterwards.
+    %% Don't lock variables that are only used inside the protected
+    %% expression.
+    Pdb0 = vdb_sub(I, I+1, Vdb),
+    {T,MaxI,Pdb1} = body(Ts, I+1, Pdb0),
+    Pdb2 = use_vars(A#k.ns, MaxI+1, Pdb1),	%Save "return" values
+    Prot#k_protected{arg=T,anno=#l{i=I,a=A#k.a,vdb=Pdb2}}.
+
+%% match(Kexpr, [LockVar], I, Vdb) -> Expr.
+%%  Convert match tree to old format.
+
+match(#k_alt{anno=A,first=Kf,then=Kt}, Ls, I, Vdb0) ->
+    Vdb1 = use_vars(union(A#k.us, Ls), I, Vdb0),
+    F = match(Kf, Ls, I+1, Vdb1),
+    T = match(Kt, Ls, I+1, Vdb1),
+    #k_alt{anno=[],first=F,then=T};
+match(#k_select{anno=A,var=V,types=Kts}=Select, Ls0, I, Vdb0) ->
+    Vanno = get_kanno(V),
+    Ls1 = case member(no_usage, Vanno) of
+              false -> add_element(V#k_var.name, Ls0);
+              true -> Ls0
+          end,
+    Vdb1 = use_vars(union(A#k.us, Ls1), I, Vdb0),
+    Ts = [type_clause(Tc, Ls1, I+1, Vdb1) || Tc <- Kts],
+    Select#k_select{anno=[],types=Ts};
+match(#k_guard{anno=A,clauses=Kcs}, Ls, I, Vdb0) ->
+    Vdb1 = use_vars(union(A#k.us, Ls), I, Vdb0),
+    Cs = [guard_clause(G, Ls, I+1, Vdb1) || G <- Kcs],
+    #k_guard{anno=[],clauses=Cs};
+match(Other, Ls, I, Vdb0) ->
+    Vdb1 = use_vars(Ls, I, Vdb0),
+    {B,_,Vdb2} = body(Other, I+1, Vdb1),
+    Le = #l{i=I,vdb=Vdb2,a=[]},
+    #cg_block{anno=Le,es=B}.
+
+type_clause(#k_type_clause{anno=A,type=T,values=Kvs}, Ls, I, Vdb0) ->
+    %%ok = io:format("life ~w: ~p~n", [?LINE,{T,Kvs}]),
+    Vdb1 = use_vars(union(A#k.us, Ls), I+1, Vdb0),
+    Vs = [val_clause(Vc, Ls, I+1, Vdb1) || Vc <- Kvs],
+    #k_type_clause{anno=[],type=T,values=Vs}.
+
+val_clause(#k_val_clause{anno=A,val=V,body=Kb}, Ls0, I, Vdb0) ->
+    New = (get_kanno(V))#k.ns,
+    Bus = (get_kanno(Kb))#k.us,
+    %%ok = io:format("Ls0 = ~p, Used=~p\n  New=~p, Bus=~p\n", [Ls0,Used,New,Bus]),
+    Ls1 = union(intersection(New, Bus), Ls0),	%Lock for safety
+    Vdb1 = use_vars(union(A#k.us, Ls1), I+1, new_vars(New, I, Vdb0)),
+    B = match(Kb, Ls1, I+1, Vdb1),
+    Le = #l{i=I,vdb=use_vars(Bus, I+1, Vdb1),a=A#k.a},
+    #k_val_clause{anno=Le,val=V,body=B}.
+
+guard_clause(#k_guard_clause{anno=A,guard=Kg,body=Kb}, Ls, I, Vdb0) ->
+    Vdb1 = use_vars(union(A#k.us, Ls), I+2, Vdb0),
+    Gdb = vdb_sub(I+1, I+2, Vdb1),
+    G = protected(Kg, I+1, Gdb),
+    B = match(Kb, Ls, I+2, Vdb1),
+    Le = #l{i=I,vdb=use_vars((get_kanno(Kg))#k.us, I+2, Vdb1),a=A#k.a},
+    #k_guard_clause{anno=Le,guard=G,body=B}.
+
+
+%% Here follows the code generator pass.
+%%
+%% The following assumptions have been made:
+%%
+%% 1. Matches, i.e. things with {match,M,Ret} wrappers, only return
+%% values; no variables are exported. If the match would have returned
+%% extra variables then these have been transformed to multiple return
+%% values.
+%%
+%% 2. All BIF's called in guards are gc-safe so there is no need to
+%% put thing on the stack in the guard.  While this would in principle
+%% work it would be difficult to keep track of the stack depth when
+%% trimming.
+%%
+%% The code generation uses variable lifetime information added by
+%% the previous pass to save variables, allocate registers and
+%% move registers to the stack when necessary.
+%%
+%% We try to use a consistent variable name scheme throughout.  The
+%% StackReg record is always called Bef,Int<n>,Aft.
+
 %% cg_fun([Lkexpr], [HeadVar], Vdb, State) -> {[Ainstr],State}
 
 cg_fun(Les, Hvs, Vdb, AtomMod, NameArity, Anno, St0) ->
@@ -114,14 +332,14 @@ cg_fun(Les, Hvs, Vdb, AtomMod, NameArity, Anno, St0) ->
     %% Note that and 'if_end' instruction does not need any
     %% live x registers, so it will always be safe to jump to
     %% it. (We never ever expect the jump to be taken, and in
-    %% must functions there will never be any references to
+    %% most functions there will never be any references to
     %% the label in the first place.)
     %%
 
     {UltimateMatchFail,St3} = new_label(St2),
 
     %% Create initial stack/register state, clear unused arguments.
-    Bef = clear_dead(#sr{reg=foldl(fun ({var,V}, Reg) ->
+    Bef = clear_dead(#sr{reg=foldl(fun (#k_var{name=V}, Reg) ->
 					   put_reg(V, Reg)
 				   end, [], Hvs),
 			 stk=[]}, 0, Vdb),
@@ -136,45 +354,43 @@ cg_fun(Les, Hvs, Vdb, AtomMod, NameArity, Anno, St0) ->
 
 %% cg(Lkexpr, Vdb, StackReg, State) -> {[Ainstr],StackReg,State}.
 %%  Generate code for a kexpr.
-%%  Split function into two steps for clarity, not efficiency.
-
-cg(Le, Vdb, Bef, St) ->
-    cg(Le#l.ke, Le, Vdb, Bef, St).
 
-cg({block,Es}, Le, Vdb, Bef, St) ->
+cg(#cg_block{anno=Le,es=Es}, Vdb, Bef, St) ->
     block_cg(Es, Le, Vdb, Bef, St);
-cg({match,M,Rs}, Le, Vdb, Bef, St) ->
+cg(#k_match{anno=Le,body=M,ret=Rs}, Vdb, Bef, St) ->
     match_cg(M, Rs, Le, Vdb, Bef, St);
-cg({guard_match,M,Rs}, Le, Vdb, Bef, St) ->
+cg(#k_guard_match{anno=Le,body=M,ret=Rs}, Vdb, Bef, St) ->
     guard_match_cg(M, Rs, Le, Vdb, Bef, St);
-cg({call,Func,As,Rs}, Le, Vdb, Bef, St) ->
+cg(#k_call{anno=Le,op=Func,args=As,ret=Rs}, Vdb, Bef, St) ->
     call_cg(Func, As, Rs, Le, Vdb, Bef, St);
-cg({enter,Func,As}, Le, Vdb, Bef, St) ->
+cg(#k_enter{anno=Le,op=Func,args=As}, Vdb, Bef, St) ->
     enter_cg(Func, As, Le, Vdb, Bef, St);
-cg({bif,Bif,As,Rs}, Le, Vdb, Bef, St) ->
-    bif_cg(Bif, As, Rs, Le, Vdb, Bef, St);
-cg({gc_bif,Bif,As,Rs}, Le, Vdb, Bef, St) ->
-    gc_bif_cg(Bif, As, Rs, Le, Vdb, Bef, St);
-cg({internal,Bif,As,Rs}, Le, Vdb, Bef, St) ->
-    internal_cg(Bif, As, Rs, Le, Vdb, Bef, St);
-cg({receive_loop,Te,Rvar,Rm,Tes,Rs}, Le, Vdb, Bef, St) ->
+cg(#k_bif{anno=Le}=Bif, Vdb, Bef, St) ->
+    bif_cg(Bif, Le, Vdb, Bef, St);
+cg(#k_receive{anno=Le,timeout=Te,var=Rvar,body=Rm,action=Tes,ret=Rs},
+   Vdb, Bef, St) ->
     recv_loop_cg(Te, Rvar, Rm, Tes, Rs, Le, Vdb, Bef, St);
-cg(receive_next, Le, Vdb, Bef, St) ->
+cg(#k_receive_next{anno=Le}, Vdb, Bef, St) ->
     recv_next_cg(Le, Vdb, Bef, St);
-cg(receive_accept, _Le, _Vdb, Bef, St) -> {[remove_message],Bef,St};
-cg({'try',Ta,Vs,Tb,Evs,Th,Rs}, Le, Vdb, Bef, St) ->
+cg(#k_receive_accept{}, _Vdb, Bef, St) ->
+    {[remove_message],Bef,St};
+cg(#k_try{anno=Le,arg=Ta,vars=Vs,body=Tb,evars=Evs,handler=Th,ret=Rs},
+   Vdb, Bef, St) ->
     try_cg(Ta, Vs, Tb, Evs, Th, Rs, Le, Vdb, Bef, St);
-cg({try_enter,Ta,Vs,Tb,Evs,Th}, Le, Vdb, Bef, St) ->
+cg(#k_try_enter{anno=Le,arg=Ta,vars=Vs,body=Tb,evars=Evs,handler=Th},
+   Vdb, Bef, St) ->
     try_enter_cg(Ta, Vs, Tb, Evs, Th, Le, Vdb, Bef, St);
-cg({'catch',Cb,R}, Le, Vdb, Bef, St) ->
+cg(#k_catch{anno=Le,body=Cb,ret=[R]}, Vdb, Bef, St) ->
     catch_cg(Cb, R, Le, Vdb, Bef, St);
-cg({set,Var,Con}, Le, Vdb, Bef, St) ->
-    set_cg(Var, Con, Le, Vdb, Bef, St);
-cg({return,Rs}, Le, Vdb, Bef, St) -> return_cg(Rs, Le, Vdb, Bef, St);
-cg({break,Bs}, Le, Vdb, Bef, St) -> break_cg(Bs, Le, Vdb, Bef, St);
-cg({guard_break,Bs,N}, Le, Vdb, Bef, St) ->
+cg(#k_put{anno=Le,arg=Con,ret=Var},  Vdb, Bef, St) ->
+    put_cg(Var, Con, Le, Vdb, Bef, St);
+cg(#k_return{anno=Le,args=Rs}, Vdb, Bef, St) ->
+    return_cg(Rs, Le, Vdb, Bef, St);
+cg(#k_break{anno=Le,args=Bs}, Vdb, Bef, St) ->
+    break_cg(Bs, Le, Vdb, Bef, St);
+cg(#k_guard_break{anno=Le,args=Bs,locked=N}, Vdb, Bef, St) ->
     guard_break_cg(Bs, N, Le, Vdb, Bef, St);
-cg({need_heap,H}, _Le, _Vdb, Bef, St) ->
+cg(#cg_need_heap{h=H}, _Vdb, Bef, St) ->
     {[{test_heap,H,max_reg(Bef#sr.reg)}],Bef,St}.
 
 %% cg_list([Kexpr], FirstI, Vdb, StackReg, St) -> {[Ainstr],StackReg,St}.
@@ -191,11 +407,11 @@ cg_list(Kes, I, Vdb, Bef, St0) ->
 %%  Insert need_heap instructions in Kexpr list.  Try to be smart and
 %%  collect them together as much as possible.
 
-need_heap(Kes0, I) ->
+need_heap(Kes0, _I) ->
     {Kes,H} = need_heap_0(reverse(Kes0), 0, []),
 
     %% Prepend need_heap if necessary.
-    need_heap_need(I, H) ++ Kes.
+    need_heap_need(H) ++ Kes.
 
 need_heap_0([Ke|Kes], H0, Acc) ->
     {Ns,H} = need_heap_1(Ke, H0),
@@ -203,27 +419,54 @@ need_heap_0([Ke|Kes], H0, Acc) ->
 need_heap_0([], H, Acc) ->
     {Acc,H}.
 
-need_heap_1(#l{ke={set,_,{binary,_}},i=I}, H) ->
-    {need_heap_need(I, H),0};
-need_heap_1(#l{ke={set,_,{map,_,_,_}},i=I}, H) ->
-    {need_heap_need(I, H),0};
-need_heap_1(#l{ke={set,_,Val}}, H) ->
+need_heap_1(#k_put{arg=#k_binary{}}, H) ->
+    {need_heap_need(H),0};
+need_heap_1(#k_put{arg=#k_map{}}, H) ->
+    {need_heap_need(H),0};
+need_heap_1(#k_put{arg=Val}, H) ->
     %% Just pass through adding to needed heap.
     {[],H + case Val of
-		{cons,_} -> 2;
-		{tuple,Es} -> 1 + length(Es);
+		#k_cons{} -> 2;
+		#k_tuple{es=Es} -> 1 + length(Es);
 		_Other -> 0
 	    end};
-need_heap_1(#l{ke={bif,_Bif,_As,_Rs}}, H) ->
-    {[],H};
-need_heap_1(#l{i=I}, H) ->
+need_heap_1(#k_bif{}=Bif, H) ->
+    case is_gc_bif(Bif) of
+        false ->
+            {[],H};
+        true ->
+            {need_heap_need(H),0}
+    end;
+need_heap_1(_Ke, H) ->
     %% Call or call-like instruction such as set_tuple_element/3.
-    {need_heap_need(I, H),0}.
-
-need_heap_need(_I, 0) -> [];
-need_heap_need(I, H) -> [#l{ke={need_heap,H},i=I}].
-
-%% match_cg(Match, [Ret], Le, Vdb, StackReg, State) ->
+    {need_heap_need(H),0}.
+
+need_heap_need(0) -> [];
+need_heap_need(H) -> [#cg_need_heap{h=H}].
+
+%% is_gc_bif(#k_bif{}) -> true|false.
+%% is_gc_bif(Name, Arity) -> true|false.
+%%  Determines whether the BIF Name/Arity might do a GC.
+
+is_gc_bif(#k_bif{op=#k_remote{name=#k_atom{val=Name}},args=Args}) ->
+    is_gc_bif(Name, length(Args));
+is_gc_bif(#k_bif{op=#k_internal{}}) ->
+    true.
+
+is_gc_bif(hd, 1) -> false;
+is_gc_bif(tl, 1) -> false;
+is_gc_bif(self, 0) -> false;
+is_gc_bif(node, 0) -> false;
+is_gc_bif(node, 1) -> false;
+is_gc_bif(element, 2) -> false;
+is_gc_bif(get, 1) -> false;
+is_gc_bif(tuple_size, 1) -> false;
+is_gc_bif(Bif, Arity) ->
+    not (erl_internal:bool_op(Bif, Arity) orelse
+	 erl_internal:new_type_test(Bif, Arity) orelse
+	 erl_internal:comp_op(Bif, Arity)).
+
+%% match_cg(Matc, [Ret], Le, Vdb, StackReg, State) ->
 %%	{[Ainstr],StackReg,State}.
 %%  Generate code for a match.  First save all variables on the stack
 %%  that are to survive after the match.  We leave saved variables in
@@ -252,7 +495,7 @@ guard_match_cg(M, Rs, Le, Vdb, Bef, St0) ->
      clear_dead(Aft#sr{reg=Reg}, I, Vdb),
      St2#cg{break=St1#cg.break}}.
 
-guard_match_regs([{I,gbreakvar}|Rs], [{var,V}|Vs]) ->
+guard_match_regs([{I,gbreakvar}|Rs], [#k_var{name=V}|Vs]) ->
     [{I,V}|guard_match_regs(Rs, Vs)];
 guard_match_regs([R|Rs], Vs) ->
     [R|guard_match_regs(Rs, Vs)];
@@ -264,17 +507,14 @@ guard_match_regs([], []) -> [].
 %%  down as each level which uses this takes its own internal Vdb not
 %%  the outer one.
 
-match_cg(Le, Fail, Bef, St) ->
-    match_cg(Le#l.ke, Le, Fail, Bef, St).
-
-match_cg({alt,F,S}, _Le, Fail, Bef, St0) ->
+match_cg(#k_alt{first=F,then=S}, Fail, Bef, St0) ->
     {Tf,St1} = new_label(St0),
     {Fis,Faft,St2} = match_cg(F, Tf, Bef, St1),
     {Sis,Saft,St3} = match_cg(S, Fail, Bef, St2),
     Aft = sr_merge(Faft, Saft),
     {Fis ++ [{label,Tf}] ++ Sis,Aft,St3};
-match_cg({select,{var,Vname}=V,Scs0}, #l{a=Anno}, Fail, Bef, St) ->
-    ReuseForContext = member(reuse_for_context, Anno) andalso
+match_cg(#k_select{var=#k_var{anno=Vanno,name=Vname}=V,types=Scs0}, Fail, Bef, St) ->
+    ReuseForContext = member(reuse_for_context, Vanno) andalso
 	find_reg(Vname, Bef#sr.reg) =/= error,
     Scs = case ReuseForContext of
 	      false -> Scs0;
@@ -283,10 +523,10 @@ match_cg({select,{var,Vname}=V,Scs0}, #l{a=Anno}, Fail, Bef, St) ->
     match_fmf(fun (S, F, Sta) ->
 		      select_cg(S, V, F, Fail, Bef, Sta) end,
 	      Fail, St, Scs);
-match_cg({guard,Gcs}, _Le, Fail, Bef, St) ->
+match_cg(#k_guard{clauses=Gcs}, Fail, Bef, St) ->
     match_fmf(fun (G, F, Sta) -> guard_clause_cg(G, F, Bef, Sta) end,
 	      Fail, St, Gcs);
-match_cg({block,Es}, Le, _Fail, Bef, St) ->
+match_cg(#cg_block{anno=Le,es=Es}, _Fail, Bef, St) ->
     %% Must clear registers and stack of dead variables.
     Int = clear_dead(Bef, Le#l.i, Le#l.vdb),
     block_cg(Es, Le, Int, St).
@@ -294,8 +534,8 @@ match_cg({block,Es}, Le, _Fail, Bef, St) ->
 %% bsm_rename_ctx([Clause], Var) -> [Clause]
 %%  We know from an annotation that the register for a binary can
 %%  be reused for the match context because the two are not truly
-%%  alive at the same time (even though the conservative life time
-%%  information calculated by v3_life says so).
+%%  alive at the same time (even though the life time information
+%%  says so).
 %%
 %%  The easiest way to have those variables share the same register is
 %%  to rename the variable with the shortest life-span (the match
@@ -306,12 +546,14 @@ match_cg({block,Es}, Le, _Fail, Bef, St) ->
 %%  We must also remove all information about the match context
 %%  variable from all life-time information databases (Vdb).
 
-bsm_rename_ctx([#l{ke={type_clause,binary,
-		       [#l{ke={val_clause,{binary,{var,Old}},Ke0}}=L2]}}=L1|Cs], New) ->
+bsm_rename_ctx([#k_type_clause{type=k_binary,values=Vcs}=TC|Cs], New) ->
+    [#k_val_clause{val=#k_binary{segs=#k_var{name=Old}}=Bin,
+                   body=Ke0}=VC0] = Vcs,
     Ke = bsm_rename_ctx(Ke0, Old, New, false),
-    [L1#l{ke={type_clause,binary,
-	      [L2#l{ke={val_clause,{binary,{var,New}},Ke}}]}}|bsm_rename_ctx(Cs, New)];
-bsm_rename_ctx([C|Cs], New) -> 
+    VC = VC0#k_val_clause{val=Bin#k_binary{segs=#k_var{name=New}},
+                          body=Ke},
+    [TC#k_type_clause{values=[VC]}|bsm_rename_ctx(Cs, New)];
+bsm_rename_ctx([C|Cs], New) ->
     [C|bsm_rename_ctx(Cs, New)];
 bsm_rename_ctx([], _) -> [].
 
@@ -321,34 +563,24 @@ bsm_rename_ctx([], _) -> [].
 %%  only complicatate things to recurse into blocks not in a protected
 %%  (the match context variable is not live inside them).
 
-bsm_rename_ctx(#l{ke={select,{var,V},Cs0}}=L, Old, New, InProt) ->
+bsm_rename_ctx(#k_select{var=#k_var{name=V},types=Cs0}=Sel,
+               Old, New, InProt) ->
     Cs = bsm_rename_ctx_list(Cs0, Old, New, InProt),
-    L#l{ke={select,{var,bsm_rename_var(V, Old, New)},Cs}};
-bsm_rename_ctx(#l{ke={type_clause,Type,Cs0}}=L, Old, New, InProt) ->
+    Sel#k_select{var=#k_var{name=bsm_rename_var(V, Old, New)},types=Cs};
+bsm_rename_ctx(#k_type_clause{values=Cs0}=TC, Old, New, InProt) ->
     Cs = bsm_rename_ctx_list(Cs0, Old, New, InProt),
-    L#l{ke={type_clause,Type,Cs}};
-bsm_rename_ctx(#l{ke={val_clause,{bin_end,V},Ke0}}=L, Old, New, InProt) ->
-    Ke = bsm_rename_ctx(Ke0, Old, New, InProt),
-    L#l{ke={val_clause,{bin_end,bsm_rename_var(V, Old, New)},Ke}};
-bsm_rename_ctx(#l{ke={val_clause,{bin_seg,V,Sz,U,Type,Fl,Vs},Ke0}}=L,
-	       Old, New, InProt) ->
+    TC#k_type_clause{values=Cs};
+bsm_rename_ctx(#k_val_clause{body=Ke0}=VC, Old, New, InProt) ->
     Ke = bsm_rename_ctx(Ke0, Old, New, InProt),
-    L#l{ke={val_clause,{bin_seg,bsm_rename_var(V, Old, New),Sz,U,Type,Fl,Vs},Ke}};
-bsm_rename_ctx(#l{ke={val_clause,{bin_int,V,Sz,U,Fl,Val,Vs},Ke0}}=L,
-	       Old, New, InProt) ->
-    Ke = bsm_rename_ctx(Ke0, Old, New, InProt),
-    L#l{ke={val_clause,{bin_int,bsm_rename_var(V, Old, New),Sz,U,Fl,Val,Vs},Ke}};
-bsm_rename_ctx(#l{ke={val_clause,Val,Ke0}}=L, Old, New, InProt) ->
-    Ke = bsm_rename_ctx(Ke0, Old, New, InProt),
-    L#l{ke={val_clause,Val,Ke}};
-bsm_rename_ctx(#l{ke={alt,F0,S0}}=L, Old, New, InProt) ->
+    VC#k_val_clause{body=Ke};
+bsm_rename_ctx(#k_alt{first=F0,then=S0}=Alt, Old, New, InProt) ->
     F = bsm_rename_ctx(F0, Old, New, InProt),
     S = bsm_rename_ctx(S0, Old, New, InProt),
-    L#l{ke={alt,F,S}};
-bsm_rename_ctx(#l{ke={guard,Gcs0}}=L, Old, New, InProt) ->
+    Alt#k_alt{first=F,then=S};
+bsm_rename_ctx(#k_guard{clauses=Gcs0}=Guard, Old, New, InProt) ->
     Gcs = bsm_rename_ctx_list(Gcs0, Old, New, InProt),
-    L#l{ke={guard,Gcs}};
-bsm_rename_ctx(#l{ke={guard_clause,G0,B0}}=L, Old, New, InProt) ->
+    Guard#k_guard{clauses=Gcs};
+bsm_rename_ctx(#k_guard_clause{guard=G0,body=B0}=GC, Old, New, InProt) ->
     G = bsm_rename_ctx(G0, Old, New, InProt),
     B = bsm_rename_ctx(B0, Old, New, InProt),
     %% A guard clause may cause unsaved variables to be saved on the stack.
@@ -356,49 +588,49 @@ bsm_rename_ctx(#l{ke={guard_clause,G0,B0}}=L, Old, New, InProt) ->
     %% same register), it is neither in the stack nor register descriptor
     %% lists and we would crash when we didn't find it unless we remove
     %% it from the database.
-    bsm_forget_var(L#l{ke={guard_clause,G,B}}, Old);
-bsm_rename_ctx(#l{ke={protected,Ts0,Rs}}=L, Old, New, _InProt) ->
+    bsm_forget_var(GC#k_guard_clause{guard=G,body=B}, Old);
+bsm_rename_ctx(#k_protected{arg=Ts0}=Prot, Old, New, _InProt) ->
     InProt = true,
     Ts = bsm_rename_ctx_list(Ts0, Old, New, InProt),
-    bsm_forget_var(L#l{ke={protected,Ts,Rs}}, Old);
-bsm_rename_ctx(#l{ke={match,Ms0,Rs}}=L, Old, New, InProt) ->
+    bsm_forget_var(Prot#k_protected{arg=Ts}, Old);
+bsm_rename_ctx(#k_match{body=Ms0}=Match, Old, New, InProt) ->
     Ms = bsm_rename_ctx(Ms0, Old, New, InProt),
-    L#l{ke={match,Ms,Rs}};
-bsm_rename_ctx(#l{ke={guard_match,Ms0,Rs}}=L, Old, New, InProt) ->
+    Match#k_match{body=Ms};
+bsm_rename_ctx(#k_guard_match{body=Ms0}=Match, Old, New, InProt) ->
     Ms = bsm_rename_ctx(Ms0, Old, New, InProt),
-    L#l{ke={guard_match,Ms,Rs}};
-bsm_rename_ctx(#l{ke={test,_,_,_}}=L, _, _, _) -> L;
-bsm_rename_ctx(#l{ke={bif,_,_,_}}=L, _, _, _) -> L;
-bsm_rename_ctx(#l{ke={gc_bif,_,_,_}}=L, _, _, _) -> L;
-bsm_rename_ctx(#l{ke={set,_,_}}=L, _, _, _) -> L;
-bsm_rename_ctx(#l{ke={call,_,_,_}}=L, _, _, _) -> L;
-bsm_rename_ctx(#l{ke={block,_}}=L, Old, _, false) ->
+    Match#k_guard_match{body=Ms};
+bsm_rename_ctx(#k_test{}=Test, _, _, _) -> Test;
+bsm_rename_ctx(#k_bif{}=Bif, _, _, _) -> Bif;
+bsm_rename_ctx(#k_put{}=Put, _, _, _) -> Put;
+bsm_rename_ctx(#k_call{}=Call, _, _, _) -> Call;
+bsm_rename_ctx(#cg_block{}=Block, Old, _, false) ->
     %% This block is not inside a protected. The match context variable cannot
     %% possibly be live inside the block.
-    bsm_forget_var(L, Old);
-bsm_rename_ctx(#l{ke={block,Bl0}}=L, Old, New, true) ->
+    bsm_forget_var(Block, Old);
+bsm_rename_ctx(#cg_block{es=Es0}=Block, Old, New, true) ->
     %% A block in a protected. We must recursively rename the variable
     %% inside the block.
-    Bl = bsm_rename_ctx_list(Bl0, Old, New, true),
-    bsm_forget_var(L#l{ke={block,Bl}}, Old);
-bsm_rename_ctx(#l{ke={guard_break,Bs,Locked0}}=L0, Old, _New, _InProt) ->
+    Es = bsm_rename_ctx_list(Es0, Old, New, true),
+    bsm_forget_var(Block#cg_block{es=Es}, Old);
+bsm_rename_ctx(#k_guard_break{locked=Locked0}=Break, Old, _New, _InProt) ->
     Locked = Locked0 -- [Old],
-    L = L0#l{ke={guard_break,Bs,Locked}},
-    bsm_forget_var(L, Old).
+    bsm_forget_var(Break#k_guard_break{locked=Locked}, Old).
 
 bsm_rename_ctx_list([C|Cs], Old, New, InProt) ->
     [bsm_rename_ctx(C, Old, New, InProt)|
      bsm_rename_ctx_list(Cs, Old, New, InProt)];
 bsm_rename_ctx_list([], _, _, _) -> [].
-    
+
 bsm_rename_var(Old, Old, New) -> New;
 bsm_rename_var(V, _, _) -> V.
 
 %% bsm_forget_var(#l{}, Variable) -> #l{}
 %%  Remove a variable from the variable life-time database.
 
-bsm_forget_var(#l{vdb=Vdb}=L, V) ->
-    L#l{vdb=keydelete(V, 1, Vdb)}.
+bsm_forget_var(Ke, V) ->
+    #l{vdb=Vdb} = L0 = get_kanno(Ke),
+    L = L0#l{vdb=keydelete(V, 1, Vdb)},
+    set_kanno(Ke, L).
 
 %% block_cg([Kexpr], Le, Vdb, StackReg, St) -> {[Ainstr],StackReg,St}.
 %% block_cg([Kexpr], Le, StackReg, St) -> {[Ainstr],StackReg,St}.
@@ -421,7 +653,7 @@ cg_block(Kes0, I, Vdb, Bef, St0) ->
 	case basic_block(Kes0) of
 	    {Kes1,LastI,Args,Rest} ->
 		Ke = hd(Kes1),
-		Fb = Ke#l.i,
+                #l{i=Fb} = get_kanno(Ke),
 		cg_basic_block(Kes1, Fb, LastI, Args, Vdb, Bef, St0);
 	    {Kes1,Rest} ->
 		cg_list(Kes1, I, Vdb, Bef, St0)
@@ -431,36 +663,46 @@ cg_block(Kes0, I, Vdb, Bef, St0) ->
 
 basic_block(Kes) -> basic_block(Kes, []).
 
-basic_block([Le|Les], Acc) ->
-    case collect_block(Le#l.ke) of
-	include -> basic_block(Les, [Le|Acc]);
+basic_block([Ke|Kes], Acc) ->
+    case collect_block(Ke) of
+	include -> basic_block(Kes, [Ke|Acc]);
 	{block_end,As} ->
 	    case Acc of
 		[] ->
-		    %% If the basic block does not contain any set instructions,
+		    %% If the basic block does not contain any #k_put{} instructions,
 		    %% it serves no useful purpose to do basic block optimizations.
-		    {[Le],Les};
+		    {[Ke],Kes};
 		_ ->
-		    {reverse(Acc, [Le]),Le#l.i,As,Les}
+                    #l{i=I} = get_kanno(Ke),
+		    {reverse(Acc, [Ke]),I,As,Kes}
 	    end;
-	no_block -> {reverse(Acc, [Le]),Les}
+	no_block -> {reverse(Acc, [Ke]),Kes}
     end.
 
-%% sets that may garbage collect are not allowed in basic blocks.
-	
-collect_block({set,_,{binary,_}})    -> no_block;
-collect_block({set,_,{map,_,_,_}})   -> no_block;
-collect_block({set,_,_})             -> include;
-collect_block({call,{var,_}=Var,As,_Rs}) -> {block_end,As++[Var]};
-collect_block({call,Func,As,_Rs})   -> {block_end,As++func_vars(Func)};
-collect_block({enter,{var,_}=Var,As})-> {block_end,As++[Var]};
-collect_block({enter,Func,As})       -> {block_end,As++func_vars(Func)};
-collect_block({return,Rs})           -> {block_end,Rs};
-collect_block({break,Bs})            -> {block_end,Bs};
+%% #k_put{} instructions that may garbage collect are not allowed in basic blocks.
+
+collect_block(#k_put{arg=#k_binary{}}) ->
+    no_block;
+collect_block(#k_put{arg=#k_map{}}) ->
+    no_block;
+collect_block(#k_put{}) ->
+    include;
+collect_block(#k_call{op=#k_var{}=Var,args=As}) ->
+    {block_end,As++[Var]};
+collect_block(#k_call{op=Func,args=As}) ->
+    {block_end,As++func_vars(Func)};
+collect_block(#k_enter{op=#k_var{}=Var,args=As}) ->
+    {block_end,As++[Var]};
+collect_block(#k_enter{op=Func,args=As}) ->
+    {block_end,As++func_vars(Func)};
+collect_block(#k_return{args=Rs}) ->
+    {block_end,Rs};
+collect_block(#k_break{args=Bs}) ->
+    {block_end,Bs};
 collect_block(_)                     -> no_block.
 
-func_vars({remote,M,F}) when element(1, M) =:= var;
-			     element(1, F) =:= var ->
+func_vars(#k_remote{mod=M,name=F})
+  when is_record(M, k_var); is_record(F, k_var) ->
     [M,F];
 func_vars(_) -> [].
 
@@ -478,18 +720,19 @@ cg_basic_block(Kes, Fb, Lf, As, Vdb, Bef, St0) ->
 		     {Int0,X0_v0,St0}, need_heap(Kes, Fb)),
     {Keis,Aft,St1}.
 
-cg_basic_block(#l{ke={need_heap,_}}=Ke, {Inta,X0v,Sta}, _Lf, Vdb) ->
+cg_basic_block(#cg_need_heap{}=Ke, {Inta,X0v,Sta}, _Lf, Vdb) ->
     {Keis,Intb,Stb} = cg(Ke, Vdb, Inta, Sta),
     {Keis, {Intb,X0v,Stb}};
 cg_basic_block(Ke, {Inta,X0_v1,Sta}, Lf, Vdb) ->
-    {Sis,Intb} = save_carefully(Inta, Ke#l.i, Lf+1, Vdb),
-    {X0_v2,Intc} = allocate_x0(X0_v1, Ke#l.i, Intb),
+    #l{i=I} = get_kanno(Ke),
+    {Sis,Intb} = save_carefully(Inta, I, Lf+1, Vdb),
+    {X0_v2,Intc} = allocate_x0(X0_v1, I, Intb),
     Intd = reserve(Intc),
     {Keis,Inte,Stb} = cg(Ke, Vdb, Intd, Sta),
     {Sis ++ Keis, {Inte,X0_v2,Stb}}.
 
 make_reservation([], _) -> [];
-make_reservation([{var,V}|As], I) -> [{I,V}|make_reservation(As, I+1)];
+make_reservation([#k_var{name=V}|As], I) -> [{I,V}|make_reservation(As, I+1)];
 make_reservation([A|As], I) -> [{I,A}|make_reservation(As, I+1)].
 
 reserve(Sr) -> Sr#sr{reg=reserve(Sr#sr.res, Sr#sr.reg, Sr#sr.stk)}.
@@ -538,7 +781,7 @@ save_carefully([V|Vs], Bef, Acc) ->
     end.
 
 x0_vars([], _Fb, _Lf, _Vdb) -> [];
-x0_vars([{var,V}|_], Fb, _Lf, Vdb) ->
+x0_vars([#k_var{name=V}|_], Fb, _Lf, Vdb) ->
     {V,F,_L} = VFL = vdb_find(V, Vdb),
     x0_vars1([VFL], Fb, F, Vdb);
 x0_vars([X0|_], Fb, Lf, Vdb) ->
@@ -640,21 +883,27 @@ turn_yreg(Other, _MaxY) ->
 %%  wrong.  These are different as in the second case there is no need
 %%  to try the next type, it will always fail.
 
-select_cg(#l{ke={type_clause,cons,[S]}}, {var,V}, Tf, Vf, Bef, St) ->
+select_cg(#k_type_clause{type=Type,values=Vs}, Var, Tf, Vf, Bef, St) ->
+    #k_var{name=V} = Var,
+    select_cg(Type, Vs, V, Tf, Vf, Bef, St).
+
+select_cg(k_cons, [S], V, Tf, Vf, Bef, St) ->
     select_cons(S, V, Tf, Vf, Bef, St);
-select_cg(#l{ke={type_clause,nil,[S]}}, {var,V}, Tf, Vf, Bef, St) ->
+select_cg(k_nil, [S], V, Tf, Vf, Bef, St) ->
     select_nil(S, V, Tf, Vf, Bef, St);
-select_cg(#l{ke={type_clause,binary,[S]}}, {var,V}, Tf, Vf, Bef, St) ->
+select_cg(k_binary, [S], V, Tf, Vf, Bef, St) ->
     select_binary(S, V, Tf, Vf, Bef, St);
-select_cg(#l{ke={type_clause,bin_seg,S}}, {var,V}, Tf, _Vf, Bef, St) ->
+select_cg(k_bin_seg, S, V, Tf, _Vf, Bef, St) ->
     select_bin_segs(S, V, Tf, Bef, St);
-select_cg(#l{ke={type_clause,bin_int,S}}, {var,V}, Tf, _Vf, Bef, St) ->
+select_cg(k_bin_int, S, V, Tf, _Vf, Bef, St) ->
     select_bin_segs(S, V, Tf, Bef, St);
-select_cg(#l{ke={type_clause,bin_end,[S]}}, {var,V}, Tf, _Vf, Bef, St) ->
+select_cg(k_bin_end, [S], V, Tf, _Vf, Bef, St) ->
     select_bin_end(S, V, Tf, Bef, St);
-select_cg(#l{ke={type_clause,map,S}}, {var,V}, Tf, Vf, Bef, St) ->
+select_cg(k_map, S, V, Tf, Vf, Bef, St) ->
     select_map(S, V, Tf, Vf, Bef, St);
-select_cg(#l{ke={type_clause,Type,Scs}}, {var,V}, Tf, Vf, Bef, St0) ->
+select_cg(k_literal, S, V, Tf, Vf, Bef, St) ->
+    select_literal(S, V, Tf, Vf, Bef, St);
+select_cg(Type, Scs, V, Tf, Vf, Bef, St0) ->
     {Vis,{Aft,St1}} =
 	mapfoldl(fun (S, {Int,Sta}) ->
 			 {Val,Is,Inta,Stb} = select_val(S, V, Vf, Bef, Sta),
@@ -664,22 +913,29 @@ select_cg(#l{ke={type_clause,Type,Scs}}, {var,V}, Tf, Vf, Bef, St0) ->
     {Vls,Sis,St2} = select_labels(OptVls, St1, [], []),
     {select_val_cg(Type, fetch_var(V, Bef), Vls, Tf, Vf, Sis), Aft, St2}.
 
-select_val_cg(tuple, R, [Arity,{f,Lbl}], Tf, Vf, [{label,Lbl}|Sis]) ->
+select_val_cg(k_tuple, R, [Arity,{f,Lbl}], Tf, Vf, [{label,Lbl}|Sis]) ->
     [{test,is_tuple,{f,Tf},[R]},{test,test_arity,{f,Vf},[R,Arity]}|Sis];
-select_val_cg(tuple, R, Vls, Tf, Vf, Sis) ->
+select_val_cg(k_tuple, R, Vls, Tf, Vf, Sis) ->
     [{test,is_tuple,{f,Tf},[R]},{select_tuple_arity,R,{f,Vf},{list,Vls}}|Sis];
 select_val_cg(Type, R, [Val, {f,Lbl}], Fail, Fail, [{label,Lbl}|Sis]) ->
-    [{test,is_eq_exact,{f,Fail},[R,{Type,Val}]}|Sis];
+    [{test,is_eq_exact,{f,Fail},[R,{type(Type),Val}]}|Sis];
 select_val_cg(Type, R, [Val, {f,Lbl}], Tf, Vf, [{label,Lbl}|Sis]) ->
     [{test,select_type_test(Type),{f,Tf},[R]},
-     {test,is_eq_exact,{f,Vf},[R,{Type,Val}]}|Sis];
+     {test,is_eq_exact,{f,Vf},[R,{type(Type),Val}]}|Sis];
 select_val_cg(Type, R, Vls0, Tf, Vf, Sis) ->
-    Vls1 = [case Value of {f,_Lbl} -> Value; _ -> {Type,Value} end || Value <- Vls0],
+    Vls1 = [case Value of
+                {f,_Lbl} -> Value;
+                _ -> {type(Type),Value}
+            end || Value <- Vls0],
     [{test,select_type_test(Type),{f,Tf},[R]}, {select_val,R,{f,Vf},{list,Vls1}}|Sis].
-    
-select_type_test(integer) -> is_integer;
-select_type_test(atom) -> is_atom;
-select_type_test(float) -> is_float.
+
+type(k_atom) -> atom;
+type(k_float) -> float;
+type(k_int) -> integer.
+
+select_type_test(k_int) -> is_integer;
+select_type_test(k_atom) -> is_atom;
+select_type_test(k_float) -> is_float.
 
 combine([{Is,Vs1}, {Is,Vs2}|Vis]) -> combine([{Is,Vs1 ++ Vs2}|Vis]);
 combine([V|Vis]) -> [V|combine(Vis)];
@@ -695,36 +951,49 @@ add_vls([V|Vs], Lbl, Acc) ->
     add_vls(Vs, Lbl, [V, {f,Lbl}|Acc]);
 add_vls([], _, Acc) -> Acc.
 
-select_cons(#l{ke={val_clause,{cons,Es},B},i=I,vdb=Vdb}, V, Tf, Vf, Bef, St0) ->
+select_literal(S, V, Tf, Vf, Bef, St) ->
+    Reg = fetch_var(V, Bef),
+    F = fun(ValClause, Fail, St0) ->
+                {Val,Is,Aft,St1} = select_val(ValClause, V, Vf, Bef, St0),
+                Test = {test,is_eq_exact,{f,Fail},[Reg,{literal,Val}]},
+                {[Test|Is],Aft,St1}
+        end,
+    match_fmf(F, Tf, St, S).
+
+select_cons(#k_val_clause{val=#k_cons{hd=Hd,tl=Tl},body=B,anno=#l{i=I,vdb=Vdb}},
+            V, Tf, Vf, Bef, St0) ->
+    Es = [Hd,Tl],
     {Eis,Int,St1} = select_extract_cons(V, Es, I, Vdb, Bef, St0),
     {Bis,Aft,St2} = match_cg(B, Vf, Int, St1),
     {[{test,is_nonempty_list,{f,Tf},[fetch_var(V, Bef)]}] ++ Eis ++ Bis,Aft,St2}.
 
-select_nil(#l{ke={val_clause,nil,B}}, V, Tf, Vf, Bef, St0) ->
+select_nil(#k_val_clause{val=#k_nil{},body=B}, V, Tf, Vf, Bef, St0) ->
     {Bis,Aft,St1} = match_cg(B, Vf, Bef, St0),
     {[{test,is_nil,{f,Tf},[fetch_var(V, Bef)]}] ++ Bis,Aft,St1}.
 
-select_binary(#l{ke={val_clause,{binary,{var,V}},B},i=I,vdb=Vdb},
-	      V, Tf, Vf, Bef, St0) ->
+select_binary(#k_val_clause{val=#k_binary{segs=#k_var{name=V}},body=B,
+                            anno=#l{i=I,vdb=Vdb}}, V, Tf, Vf, Bef, St0) ->
+    #cg{ctx=OldCtx} = St0,
     Int0 = clear_dead(Bef#sr{reg=Bef#sr.reg}, I, Vdb),
-    {Bis0,Aft,St1} = match_cg(B, Vf, Int0, St0),
+    {Bis0,Aft,St1} = match_cg(B, Vf, Int0, St0#cg{ctx=V}),
     CtxReg = fetch_var(V, Int0),
     Live = max_reg(Bef#sr.reg),
     Bis1 = [{test,bs_start_match2,{f,Tf},Live,[CtxReg,V],CtxReg},
 	    {bs_save2,CtxReg,{V,V}}|Bis0],
     Bis = finish_select_binary(Bis1),
-    {Bis,Aft,St1};
-select_binary(#l{ke={val_clause,{binary,{var,Ivar}},B},i=I,vdb=Vdb},
-	      V, Tf, Vf, Bef, St0) ->
+    {Bis,Aft,St1#cg{ctx=OldCtx}};
+select_binary(#k_val_clause{val=#k_binary{segs=#k_var{name=Ivar}},body=B,
+                            anno=#l{i=I,vdb=Vdb}}, V, Tf, Vf, Bef, St0) ->
+    #cg{ctx=OldCtx} = St0,
     Regs = put_reg(Ivar, Bef#sr.reg),
     Int0 = clear_dead(Bef#sr{reg=Regs}, I, Vdb),
-    {Bis0,Aft,St1} = match_cg(B, Vf, Int0, St0),
+    {Bis0,Aft,St1} = match_cg(B, Vf, Int0, St0#cg{ctx=Ivar}),
     CtxReg = fetch_var(Ivar, Int0),
     Live = max_reg(Bef#sr.reg),
     Bis1 = [{test,bs_start_match2,{f,Tf},Live,[fetch_var(V, Bef),Ivar],CtxReg},
 	    {bs_save2,CtxReg,{Ivar,Ivar}}|Bis0],
     Bis = finish_select_binary(Bis1),
-    {Bis,Aft,St1}.
+    {Bis,Aft,St1#cg{ctx=OldCtx}}.
 
 finish_select_binary([{bs_save2,R,Point}=I,{bs_restore2,R,Point}|Is]) ->
     [I|finish_select_binary(Is)];
@@ -746,9 +1015,16 @@ select_bin_segs(Scs, Ivar, Tf, Bef, St) ->
 		      select_bin_seg(S, Ivar, Fail, Bef, Sta) end,
 	      Tf, St, Scs).
 
-select_bin_seg(#l{ke={val_clause,{bin_seg,Ctx,Size,U,T,Fs0,Es},B},i=I,vdb=Vdb,a=A},
-	       Ivar, Fail, Bef, St0) ->
+select_bin_seg(#k_val_clause{val=#k_bin_seg{size=Size,unit=U,type=T,
+                                            seg=Seg,flags=Fs0,next=Next},
+                             body=B,
+                             anno=#l{i=I,vdb=Vdb,a=A}}, Ivar, Fail, Bef, St0) ->
+    Ctx = St0#cg.ctx,
     Fs = [{anno,A}|Fs0],
+    Es = case Next of
+             [] -> [Seg];
+             _ -> [Seg,Next]
+         end,
     {Mis,Int,St1} = select_extract_bin(Es, Size, U, T, Fs, Fail,
 				       I, Vdb, Bef, Ctx, B, St0),
     {Bis,Aft,St2} = match_cg(B, Fail, Int, St1),
@@ -761,9 +1037,12 @@ select_bin_seg(#l{ke={val_clause,{bin_seg,Ctx,Size,U,T,Fs0,Es},B},i=I,vdb=Vdb,a=
 		 [{bs_restore2,CtxReg,{Ctx,Ivar}}|Mis++Bis]
 	 end,
     {Is,Aft,St2};
-select_bin_seg(#l{ke={val_clause,{bin_int,Ctx,Sz,U,Fs,Val,Es},B},i=I,vdb=Vdb},
-	       Ivar, Fail, Bef, St0) ->
-    {Mis,Int,St1} = select_extract_int(Es, Val, Sz, U, Fs, Fail,
+select_bin_seg(#k_val_clause{val=#k_bin_int{size=Sz,unit=U,flags=Fs,
+                                            val=Val,next=Next},
+                             body=B,
+                             anno=#l{i=I,vdb=Vdb}}, Ivar, Fail, Bef, St0) ->
+    Ctx = St0#cg.ctx,
+    {Mis,Int,St1} = select_extract_int(Next, Val, Sz, U, Fs, Fail,
 				       I, Vdb, Bef, Ctx, St0),
     {Bis,Aft,St2} = match_cg(B, Fail, Int, St1),
     CtxReg = fetch_var(Ctx, Bef),
@@ -784,7 +1063,7 @@ select_bin_seg(#l{ke={val_clause,{bin_int,Ctx,Sz,U,Fs,Val,Es},B},i=I,vdb=Vdb},
 	 end,
     {[{bs_restore2,CtxReg,{Ctx,Ivar}}|Is],Aft,St2}.
 
-select_extract_int([{var,Tl}], Val, {integer,Sz}, U, Fs, Vf,
+select_extract_int(#k_var{name=Tl}, Val, #k_int{val=Sz}, U, Fs, Vf,
 		   I, Vdb, Bef, Ctx, St) ->
     Bits = U*Sz,
     Bin = case member(big, Fs) of
@@ -805,7 +1084,7 @@ select_extract_int([{var,Tl}], Val, {integer,Sz}, U, Fs, Vf,
 	 end,
     {Is,clear_dead(Bef, I, Vdb),St}.
 
-select_extract_bin([{var,Hd},{var,Tl}], Size0, Unit, Type, Flags, Vf,
+select_extract_bin([#k_var{name=Hd},#k_var{name=Tl}], Size0, Unit, Type, Flags, Vf,
 		   I, Vdb, Bef, Ctx, _Body, St) ->
     SizeReg = get_bin_size_reg(Size0, Bef),
     {Es,Aft} =
@@ -828,11 +1107,11 @@ select_extract_bin([{var,Hd},{var,Tl}], Size0, Unit, Type, Flags, Vf,
 		  {bs_save2,CtxReg,{Ctx,Tl}}],Int1}
 	end,
     {Es,clear_dead(Aft, I, Vdb),St};
-select_extract_bin([{var,Hd}], Size, Unit, binary, Flags, Vf,
+select_extract_bin([#k_var{name=Hd}], Size, Unit, binary, Flags, Vf,
 		   I, Vdb, Bef, Ctx, Body, St) ->
     %% Match the last segment of a binary. We KNOW that the size
     %% must be 'all'.
-    Size = {atom,all},				%Assertion.
+    #k_atom{val=all} = Size,                    %Assertion.
     {Es,Aft} =
 	case vdb_find(Hd, Vdb) of
 	    {_,_,Lhd} when Lhd =< I ->
@@ -857,7 +1136,7 @@ select_extract_bin([{var,Hd}], Size, Unit, binary, Flags, Vf,
 			Name = bs_get_binary2,
 			Live = max_reg(Bef#sr.reg),
 			{[{test,Name,{f,Vf},Live,
-			   [CtxReg,Size,Unit,{field_flags,Flags}],Rhd}],
+			   [CtxReg,atomic(Size),Unit,{field_flags,Flags}],Rhd}],
 			 Int1};
 		    true ->
 			%% Since the matching context will not be used again,
@@ -872,36 +1151,42 @@ select_extract_bin([{var,Hd}], Size, Unit, binary, Flags, Vf,
 			Name = bs_get_binary2,
 			Live = max_reg(Int1#sr.reg),
 			{[{test,Name,{f,Vf},Live,
-			   [CtxReg,Size,Unit,{field_flags,Flags}],CtxReg}],
+			   [CtxReg,atomic(Size),Unit,{field_flags,Flags}],CtxReg}],
 			 Int1}
 		end
 	end,
     {Es,clear_dead(Aft, I, Vdb),St}.
 
 %% is_context_unused(Ke) -> true | false
-%%   Simple heurististic to determine whether the code that follows will
-%%   use the current matching context again. (The information of liveness
-%%   calculcated by v3_life is too conservative to be useful for this purpose.)
-%%   'true' means that the code that follows will definitely not use the context
-%%   again (because it is a block, not guard or matching code); 'false' that we
-%%   are not sure (there is either a guard, or more matching, either which may
-%%   reference the context again).
-
-is_context_unused(#l{ke=Ke}) -> is_context_unused(Ke);
-is_context_unused({block,_}) -> true;
-is_context_unused(_) -> false.
-
-select_bin_end(#l{ke={val_clause,{bin_end,Ctx},B}},
-	       Ivar, Tf, Bef, St0) ->
+%%   Simple heurististic to determine whether the code that follows
+%%   will use the current matching context again. (The liveness
+%%   information is too conservative to be useful for this purpose.)
+%%   'true' means that the code that follows will definitely not use
+%%   the context again (because it is a block, not guard or matching
+%%   code); 'false' that we are not sure (there could be more
+%%   matching).
+
+is_context_unused(#k_alt{then=Then}) ->
+    %% #k_alt{} can be used for different purposes. If the Then part
+    %% is a block, it means that matching has finished and is used for a guard
+    %% to choose between the matched clauses.
+    is_context_unused(Then);
+is_context_unused(#cg_block{}) ->
+    true;
+is_context_unused(_) ->
+    false.
+
+select_bin_end(#k_val_clause{val=#k_bin_end{},body=B}, Ivar, Tf, Bef, St0) ->
+    Ctx = St0#cg.ctx,
     {Bis,Aft,St2} = match_cg(B, Tf, Bef, St0),
     CtxReg = fetch_var(Ctx, Bef),
     {[{bs_restore2,CtxReg,{Ctx,Ivar}},
       {test,bs_test_tail2,{f,Tf},[CtxReg,0]}|Bis],Aft,St2}.
 
-get_bin_size_reg({var,V}, Bef) ->
+get_bin_size_reg(#k_var{name=V}, Bef) ->
     fetch_var(V, Bef);
 get_bin_size_reg(Literal, _Bef) ->
-    Literal.
+    atomic(Literal).
 
 build_bs_instr(Type, Vf, CtxReg, Live, SizeReg, Unit, Flags, Rhd) ->
     {Format,Name} = case Type of
@@ -935,11 +1220,18 @@ build_skip_instr(Type, Vf, CtxReg, Live, SizeReg, Unit, Flags) ->
 	    {test,Name,{f,Vf},[CtxReg,Live,{field_flags,Flags}]}
     end.
 
-select_val(#l{ke={val_clause,{tuple,Es},B},i=I,vdb=Vdb}, V, Vf, Bef, St0) ->
+select_val(#k_val_clause{val=#k_tuple{es=Es},body=B,anno=#l{i=I,vdb=Vdb}},
+           V, Vf, Bef, St0) ->
     {Eis,Int,St1} = select_extract_tuple(V, Es, I, Vdb, Bef, St0),
     {Bis,Aft,St2} = match_cg(B, Vf, Int, St1),
     {length(Es),Eis ++ Bis,Aft,St2};
-select_val(#l{ke={val_clause,{_,Val},B}}, _V, Vf, Bef, St0) ->
+select_val(#k_val_clause{val=Val0,body=B}, _V, Vf, Bef, St0) ->
+    Val = case Val0 of
+              #k_atom{val=Lit} -> Lit;
+              #k_float{val=Lit} -> Lit;
+              #k_int{val=Lit} -> Lit;
+              #k_literal{val=Lit} -> Lit
+          end,
     {Bis,Aft,St1} = match_cg(B, Vf, Bef, St0),
     {Val,Bis,Aft,St1}.
 
@@ -948,7 +1240,7 @@ select_val(#l{ke={val_clause,{_,Val},B}}, _V, Vf, Bef, St0) ->
 %%  Extract tuple elements, but only if they do not immediately die.
 
 select_extract_tuple(Src, Vs, I, Vdb, Bef, St) ->
-    F = fun ({var,V}, {Int0,Elem}) ->
+    F = fun (#k_var{name=V}, {Int0,Elem}) ->
 		case vdb_find(V, Vdb) of
 		    {V,_,L} when L =< I -> {[], {Int0,Elem+1}};
 		    _Other ->
@@ -965,9 +1257,10 @@ select_extract_tuple(Src, Vs, I, Vdb, Bef, St) ->
 select_map(Scs, V, Tf, Vf, Bef, St0) ->
     Reg = fetch_var(V, Bef),
     {Is,Aft,St1} =
-	match_fmf(fun(#l{ke={val_clause,{map,exact,_,Es},B},i=I,vdb=Vdb}, Fail, St1) ->
-			  select_map_val(V, Es, B, Fail, I, Vdb, Bef, St1)
-		  end, Vf, St0, Scs),
+	match_fmf(fun(#k_val_clause{val=#k_map{op=exact,es=Es},
+                                    body=B,anno=#l{i=I,vdb=Vdb}}, Fail, St1) ->
+                          select_map_val(V, Es, B, Fail, I, Vdb, Bef, St1)
+                  end, Vf, St0, Scs),
     {[{test,is_map,{f,Tf},[Reg]}|Is],Aft,St1}.
 
 select_map_val(V, Es, B, Fail, I, Vdb, Bef, St0) ->
@@ -984,29 +1277,32 @@ select_extract_map(Src, Vs, Fail, I, Vdb, Bef, St) ->
     %% Assume keys are term-sorted
     Rsrc = fetch_var(Src, Bef),
 
-    {{HasKs,GetVs,HasVarKs,GetVarVs},Aft} = lists:foldr(fun
-	    ({map_pair,{var,K},{var,V}},{{HasKsi,GetVsi,HasVarVsi,GetVarVsi},Int0}) ->
-		case vdb_find(V, Vdb) of
-		    {V,_,L} when L =< I ->
-			RK = fetch_var(K,Int0),
-			{{HasKsi,GetVsi,[RK|HasVarVsi],GetVarVsi},Int0};
-		    _Other ->
-			Reg1 = put_reg(V, Int0#sr.reg),
-			Int1 = Int0#sr{reg=Reg1},
-			RK = fetch_var(K,Int0),
-			RV = fetch_reg(V,Reg1),
-			{{HasKsi,GetVsi,HasVarVsi,[[RK,RV]|GetVarVsi]},Int1}
-		end;
-	    ({map_pair,Key,{var,V}},{{HasKsi,GetVsi,HasVarVsi,GetVarVsi},Int0}) ->
-		case vdb_find(V, Vdb) of
-		    {V,_,L} when L =< I ->
-			{{[Key|HasKsi],GetVsi,HasVarVsi,GetVarVsi},Int0};
-		    _Other ->
-			Reg1 = put_reg(V, Int0#sr.reg),
-			Int1 = Int0#sr{reg=Reg1},
-			{{HasKsi,[Key,fetch_reg(V, Reg1)|GetVsi],HasVarVsi,GetVarVsi},Int1}
-		end
-	end, {{[],[],[],[]},Bef}, Vs),
+    {{HasKs,GetVs,HasVarKs,GetVarVs},Aft} =
+        foldr(fun(#k_map_pair{key=#k_var{name=K},val=#k_var{name=V}},
+                  {{HasKsi,GetVsi,HasVarVsi,GetVarVsi},Int0}) ->
+                      case vdb_find(V, Vdb) of
+                          {V,_,L} when L =< I ->
+                              RK = fetch_var(K,Int0),
+                              {{HasKsi,GetVsi,[RK|HasVarVsi],GetVarVsi},Int0};
+                          _Other ->
+                              Reg1 = put_reg(V, Int0#sr.reg),
+                              Int1 = Int0#sr{reg=Reg1},
+                              RK = fetch_var(K,Int0),
+                              RV = fetch_reg(V,Reg1),
+                              {{HasKsi,GetVsi,HasVarVsi,[[RK,RV]|GetVarVsi]},Int1}
+                      end;
+                 (#k_map_pair{key=Key,val=#k_var{name=V}},
+                  {{HasKsi,GetVsi,HasVarVsi,GetVarVsi},Int0}) ->
+                      case vdb_find(V, Vdb) of
+                          {V,_,L} when L =< I ->
+                              {{[atomic(Key)|HasKsi],GetVsi,HasVarVsi,GetVarVsi},Int0};
+                          _Other ->
+                              Reg1 = put_reg(V, Int0#sr.reg),
+                              Int1 = Int0#sr{reg=Reg1},
+                              {{HasKsi,[atomic(Key),fetch_reg(V, Reg1)|GetVsi],
+                                HasVarVsi,GetVarVsi},Int1}
+                      end
+              end, {{[],[],[],[]},Bef}, Vs),
 
     Code = [{test,has_map_fields,{f,Fail},Rsrc,{list,HasKs}} || HasKs =/= []] ++
 	   [{test,has_map_fields,{f,Fail},Rsrc,{list,[K]}}   || K <- HasVarKs] ++
@@ -1015,7 +1311,7 @@ select_extract_map(Src, Vs, Fail, I, Vdb, Bef, St) ->
     {Code, Aft, St}.
 
 
-select_extract_cons(Src, [{var,Hd}, {var,Tl}], I, Vdb, Bef, St) ->
+select_extract_cons(Src, [#k_var{name=Hd}, #k_var{name=Tl}], I, Vdb, Bef, St) ->
     {Es,Aft} = case {vdb_find(Hd, Vdb), vdb_find(Tl, Vdb)} of
 		   {{_,_,Lhd}, {_,_,Ltl}} when Lhd =< I, Ltl =< I ->
 		       %% Both head and tail are dead.  No need to generate
@@ -1038,7 +1334,7 @@ select_extract_cons(Src, [{var,Hd}, {var,Tl}], I, Vdb, Bef, St) ->
     {Es,Aft,St}.
     
 
-guard_clause_cg(#l{ke={guard_clause,G,B},vdb=Vdb}, Fail, Bef, St0) ->
+guard_clause_cg(#k_guard_clause{anno=#l{vdb=Vdb},guard=G,body=B}, Fail, Bef, St0) ->
     {Gis,Int,St1} = guard_cg(G, Fail, Vdb, Bef, St0),
     {Bis,Aft,St} = match_cg(B, Fail, Int, St1),
     {Gis ++ Bis,Aft,St}.
@@ -1051,11 +1347,13 @@ guard_clause_cg(#l{ke={guard_clause,G,B},vdb=Vdb}, Fail, Bef, St0) ->
 %%  the correct exit point.  Primops and tests all go to the next
 %%  instruction on success or jump to a failure label.
 
-guard_cg(#l{ke={protected,Ts,Rs},i=I,vdb=Pdb}, Fail, _Vdb, Bef, St) ->
+guard_cg(#k_protected{arg=Ts,ret=Rs,anno=#l{i=I,vdb=Pdb}}, Fail, _Vdb, Bef, St) ->
     protected_cg(Ts, Rs, Fail, I, Pdb, Bef, St);
-guard_cg(#l{ke={block,Ts},i=I,vdb=Bdb}, Fail, _Vdb, Bef, St) ->
+guard_cg(#cg_block{es=Ts,anno=#l{i=I,vdb=Bdb}}, Fail, _Vdb, Bef, St) ->
     guard_cg_list(Ts, Fail, I, Bdb, Bef, St);
-guard_cg(#l{ke={test,Test,As,Inverted},i=I,vdb=_Tdb}, Fail, Vdb, Bef, St0) ->
+guard_cg(#k_test{anno=#l{i=I},op=Test0,args=As,inverted=Inverted},
+         Fail, Vdb, Bef, St0) ->
+    #k_remote{mod=#k_atom{val=erlang},name=#k_atom{val=Test}} = Test0,
     case Inverted of
 	false ->
 	    test_cg(Test, As, Fail, I, Vdb, Bef, St0);
@@ -1089,7 +1387,7 @@ protected_cg(Ts, Rs, _Fail, I, Vdb, Bef, St0) ->
 				  St2#cg{bfail=Pfail}),
     %%ok = io:fwrite("cg ~w: ~p~n", [?LINE,{Rs,I,Vdb,Aft}]),
     %% Set return values to false.
-    Mis = [{move,{atom,false},fetch_var(V,Aft)}||{var,V} <- Rs],
+    Mis = [{move,{atom,false},fetch_var(V,Aft)}||#k_var{name=V} <- Rs],
     {Tis ++ [{jump,{f,Psucc}},
 	     {label,Pfail}] ++ Mis ++ [{label,Psucc}],
      Aft,St3#cg{bfail=St0#cg.bfail}}.    
@@ -1114,7 +1412,7 @@ test_cg(is_map, [A], Fail, I, Vdb, Bef, St) ->
     Arg = cg_reg_arg_prefer_y(A, Bef),
     Aft = clear_dead(Bef, I, Vdb),
     {[{test,is_map,{f,Fail},[Arg]}],Aft,St};
-test_cg(is_boolean, [{atom,Val}], Fail, I, Vdb, Bef, St) ->
+test_cg(is_boolean, [#k_atom{val=Val}], Fail, I, Vdb, Bef, St) ->
     Aft = clear_dead(Bef, I, Vdb),
     Is = case is_boolean(Val) of
 	     true -> [];
@@ -1160,7 +1458,7 @@ match_fmf(F, LastFail, St0, [H|T]) ->
 %%  frame size. Finally the actual call is made.  Call then needs the
 %%  return values filled in.
 
-call_cg({var,_V} = Var, As, Rs, Le, Vdb, Bef, St0) ->
+call_cg(#k_var{}=Var, As, Rs, Le, Vdb, Bef, St0) ->
     {Sis,Int} = cg_setup_call(As++[Var], Bef, Le#l.i, Vdb),
     %% Put return values in registers.
     Reg = load_vars(Rs, clear_regs(Int#sr.reg)),
@@ -1169,9 +1467,8 @@ call_cg({var,_V} = Var, As, Rs, Le, Vdb, Bef, St0) ->
     {Frees,Aft} = free_dead(clear_dead(Int#sr{reg=Reg}, Le#l.i, Vdb)),
     {Sis ++ Frees ++ [line(Le),{call_fun,Arity}],Aft,
      need_stack_frame(St0)};
-call_cg({remote,Mod,Name}, As, Rs, Le, Vdb, Bef, St0)
-  when element(1, Mod) =:= var;
-       element(1, Name) =:= var ->
+call_cg(#k_remote{mod=Mod,name=Name}, As, Rs, Le, Vdb, Bef, St0)
+  when is_record(Mod, k_var); is_record(Name, k_var) ->
     {Sis,Int} = cg_setup_call(As++[Mod,Name], Bef, Le#l.i, Vdb),
     %% Put return values in registers.
     Reg = load_vars(Rs, clear_regs(Int#sr.reg)),
@@ -1189,8 +1486,9 @@ call_cg(Func, As, Rs, Le, Vdb, Bef, St0) ->
 	    %%
 	    %%     move {atom,ok} DestReg
 	    %%     jump FailureLabel
-	    {remote,{atom,erlang},{atom,error}} = Func,	%Assertion.
-	    [{var,DestVar}] = Rs,
+	    #k_remote{mod=#k_atom{val=erlang},
+                      name=#k_atom{val=error}} = Func, %Assertion.
+	    [#k_var{name=DestVar}] = Rs,
 	    Int0 = clear_dead(Bef, Le#l.i, Vdb),
 	    Reg = put_reg(DestVar, Int0#sr.reg),
 	    Int = Int0#sr{reg=Reg},
@@ -1209,11 +1507,11 @@ call_cg(Func, As, Rs, Le, Vdb, Bef, St0) ->
 	    {Sis ++ Frees ++ [line(Le)|Call],Aft,St1}
     end.
 
-build_call({remote,{atom,erlang},{atom,'!'}}, 2, St0) ->
+build_call(#k_remote{mod=#k_atom{val=erlang},name=#k_atom{val='!'}}, 2, St0) ->
     {[send],need_stack_frame(St0)};
-build_call({remote,{atom,Mod},{atom,Name}}, Arity, St0) ->
+build_call(#k_remote{mod=#k_atom{val=Mod},name=#k_atom{val=Name}}, Arity, St0) ->
     {[{call_ext,Arity,{extfunc,Mod,Name,Arity}}],need_stack_frame(St0)};
-build_call(Name, Arity, St0) when is_atom(Name) ->
+build_call(#k_local{name=Name}, Arity, St0) when is_atom(Name) ->
     {Lbl,St1} = local_func_label(Name, Arity, need_stack_frame(St0)),
     {[{call,Arity,{f,Lbl}}],St1}.
 
@@ -1229,16 +1527,15 @@ free_dead([Any|Stk], Y, Instr, StkAcc) ->
     free_dead(Stk, Y+1, Instr, [Any|StkAcc]);
 free_dead([], _, Instr, StkAcc) -> {Instr,reverse(StkAcc)}.
 
-enter_cg({var,_V} = Var, As, Le, Vdb, Bef, St0) ->
+enter_cg(#k_var{} = Var, As, Le, Vdb, Bef, St0) ->
     {Sis,Int} = cg_setup_call(As++[Var], Bef, Le#l.i, Vdb),
     %% Build complete code and final stack/register state.
     Arity = length(As),
     {Sis ++ [line(Le),{call_fun,Arity},return],
      clear_dead(Int#sr{reg=clear_regs(Int#sr.reg)}, Le#l.i, Vdb),
      need_stack_frame(St0)};
-enter_cg({remote,Mod,Name}, As, Le, Vdb, Bef, St0)
-  when element(1, Mod) =:= var;
-       element(1, Name) =:= var ->
+enter_cg(#k_remote{mod=Mod,name=Name}, As, Le, Vdb, Bef, St0)
+  when is_record(Mod, k_var); is_record(Name, k_var) ->
     {Sis,Int} = cg_setup_call(As++[Mod,Name], Bef, Le#l.i, Vdb),
     %% Build complete code and final stack/register state.
     Arity = length(As),
@@ -1256,19 +1553,19 @@ enter_cg(Func, As, Le, Vdb, Bef, St0) ->
      clear_dead(Int#sr{reg=clear_regs(Int#sr.reg)}, Le#l.i, Vdb),
      St1}.
 
-build_enter({remote,{atom,erlang},{atom,'!'}}, 2, St0) ->
+build_enter(#k_remote{mod=#k_atom{val=erlang},name=#k_atom{val='!'}}, 2, St0) ->
     {[send,return],need_stack_frame(St0)};
-build_enter({remote,{atom,Mod},{atom,Name}}, Arity, St0) ->
+build_enter(#k_remote{mod=#k_atom{val=Mod},name=#k_atom{val=Name}}, Arity, St0) ->
     St1 = case trap_bif(Mod, Name, Arity) of
 	      true -> need_stack_frame(St0);
 	      false -> St0
 	  end,
     {[{call_ext_only,Arity,{extfunc,Mod,Name,Arity}}],St1};
-build_enter(Name, Arity, St0) when is_atom(Name) ->
+build_enter(#k_local{name=Name}, Arity, St0) when is_atom(Name) ->
     {Lbl,St1} = local_func_label(Name, Arity, St0),
     {[{call_only,Arity,{f,Lbl}}],St1}.
 
-enter_line({remote,{atom,Mod},{atom,Name}}, Arity, Le) ->
+enter_line(#k_remote{mod=#k_atom{val=Mod},name=#k_atom{val=Name}}, Arity, Le) ->
     case erl_bifs:is_safe(Mod, Name, Arity) of
 	false ->
 	    %% Tail-recursive call, possibly to a BIF.
@@ -1316,6 +1613,22 @@ trap_bif(erlang, group_leader, 2) -> true;
 trap_bif(erlang, exit, 2) -> true;
 trap_bif(_, _, _) -> false.
 
+%% bif_cg(#k_bif{}, Le, Vdb, StackReg, State) ->
+%%      {[Ainstr],StackReg,State}.
+%%  Generate code a BIF.
+
+bif_cg(#k_bif{op=#k_internal{name=Name},args=As,ret=Rs}, Le, Vdb, Bef, St) ->
+    internal_cg(Name, As, Rs, Le, Vdb, Bef, St);
+bif_cg(#k_bif{op=#k_remote{mod=#k_atom{val=erlang},name=#k_atom{val=Name}},
+              args=As,ret=Rs}, Le, Vdb, Bef, St) ->
+    Ar = length(As),
+    case is_gc_bif(Name, Ar) of
+	false ->
+            bif_cg(Name, As, Rs, Le, Vdb, Bef, St);
+	true ->
+            gc_bif_cg(Name, As, Rs, Le, Vdb, Bef, St)
+    end.
+
 %% internal_cg(Bif, [Arg], [Ret], Le, Vdb, StackReg, State) ->
 %%      {[Ainstr],StackReg,State}.
 
@@ -1334,8 +1647,8 @@ internal_cg(dsetelement, [Index0,Tuple0,New0], _Rs, Le, Vdb, Bef, St0) ->
      clear_dead(Bef, Le#l.i, Vdb), St0};
 internal_cg(make_fun, [Func0,Arity0|As], Rs, Le, Vdb, Bef, St0) ->
     %% This behaves more like a function call.
-    {atom,Func} = Func0,
-    {integer,Arity} = Arity0,
+    #k_atom{val=Func} = Func0,
+    #k_int{val=Arity} = Arity0,
     {Sis,Int} = cg_setup_call(As, Bef, Le#l.i, Vdb),
     Reg = load_vars(Rs, clear_regs(Int#sr.reg)),
     {FuncLbl,St1} = local_func_label(Func, Arity, St0),
@@ -1355,7 +1668,7 @@ internal_cg(raise, As, Rs, Le, Vdb, Bef, St) ->
 %% bif_cg(Bif, [Arg], [Ret], Le, Vdb, StackReg, State) ->
 %%      {[Ainstr],StackReg,State}.
 
-bif_cg(Bif, As, [{var,V}], Le, Vdb, Bef, St0) ->
+bif_cg(Bif, As, [#k_var{name=V}], Le, Vdb, Bef, St0) ->
     Ars = cg_reg_args(As, Bef),
 
     %% If we are inside a catch and in a body (not in guard) and the
@@ -1393,7 +1706,7 @@ bif_cg(Bif, As, [{var,V}], Le, Vdb, Bef, St0) ->
 %% gc_bif_cg(Bif, [Arg], [Ret], Le, Vdb, StackReg, State) ->
 %%      {[Ainstr],StackReg,State}.
 
-gc_bif_cg(Bif, As, [{var,V}], Le, Vdb, Bef, St0) ->
+gc_bif_cg(Bif, As, [#k_var{name=V}], Le, Vdb, Bef, St0) ->
     Ars = cg_reg_args(As, Bef),
 
     %% If we are inside a catch and in a body (not in guard) and the
@@ -1439,7 +1752,7 @@ recv_loop_cg(Te, Rvar, Rm, Tes, Rs, Le, Vdb, Bef, St0) ->
 
 %% cg_recv_mesg( ) -> {[Ainstr],Aft,St}.
 
-cg_recv_mesg({var,R}, Rm, Tl, Bef, St0) ->
+cg_recv_mesg(#k_var{name=R}, Rm, Tl, Bef, St0) ->
     Int0 = Bef#sr{reg=put_reg(R, Bef#sr.reg)},
     Ret = fetch_reg(R, Int0#sr.reg),
     %% Int1 = clear_dead(Int0, I, Rm#l.vdb),
@@ -1449,22 +1762,22 @@ cg_recv_mesg({var,R}, Rm, Tl, Bef, St0) ->
 
 %% cg_recv_wait(Te, Tes, I, Vdb, Int2, St3) -> {[Ainstr],Aft,St}.
 
-cg_recv_wait({atom,infinity}, Tes, I, Bef, St0) ->
+cg_recv_wait(#k_atom{val=infinity}, #cg_block{anno=Le,es=Tes}, I, Bef, St0) ->
     %% We know that the 'after' body will never be executed.
     %% But to keep the stack and register information up to date,
     %% we will generate the code for the 'after' body, and then discard it.
-    Int1 = clear_dead(Bef, I, Tes#l.vdb),
-    {_,Int2,St1} = cg_block(Tes#l.ke, Tes#l.i, Tes#l.vdb,
-			      Int1#sr{reg=clear_regs(Int1#sr.reg)}, St0),
+    Int1 = clear_dead(Bef, I, Le#l.vdb),
+    {_,Int2,St1} = cg_block(Tes, Le#l.i, Le#l.vdb,
+                            Int1#sr{reg=clear_regs(Int1#sr.reg)}, St0),
     {[{wait,{f,St1#cg.recv}}],Int2,St1};
-cg_recv_wait({integer,0}, Tes, _I, Bef, St0) ->
-    {Tis,Int,St1} = cg_block(Tes#l.ke, Tes#l.i, Tes#l.vdb, Bef, St0),
+cg_recv_wait(#k_int{val=0}, #cg_block{anno=Le,es=Tes}, _I, Bef, St0) ->
+    {Tis,Int,St1} = cg_block(Tes, Le#l.i, Le#l.vdb, Bef, St0),
     {[timeout|Tis],Int,St1};
-cg_recv_wait(Te, Tes, I, Bef, St0) ->
+cg_recv_wait(Te, #cg_block{anno=Le,es=Tes}, I, Bef, St0) ->
     Reg = cg_reg_arg(Te, Bef),
     %% Must have empty registers here!  Bug if anything in registers.
-    Int0 = clear_dead(Bef, I, Tes#l.vdb),
-    {Tis,Int,St1} = cg_block(Tes#l.ke, Tes#l.i, Tes#l.vdb,
+    Int0 = clear_dead(Bef, I, Le#l.vdb),
+    {Tis,Int,St1} = cg_block(Tes, Le#l.i, Le#l.vdb,
 			     Int0#sr{reg=clear_regs(Int0#sr.reg)}, St0),
     {[{wait_timeout,{f,St1#cg.recv},Reg},timeout] ++ Tis,Int,St1}.
 
@@ -1482,7 +1795,7 @@ try_cg(Ta, Vs, Tb, Evs, Th, Rs, Le, Vdb, Bef, St0) ->
     {B,St1} = new_label(St0),			%Body label
     {H,St2} = new_label(St1),			%Handler label
     {E,St3} = new_label(St2),			%End label
-    TryTag = Ta#l.i,
+    #l{i=TryTag} = get_kanno(Ta),
     Int1 = Bef#sr{stk=put_catch(TryTag, Bef#sr.stk)},
     TryReg = fetch_stack({catch_tag,TryTag}, Int1#sr.stk),
     {Ais,Int2,St4} = cg(Ta, Vdb, Int1, St3#cg{break=B,in_catch=true}),
@@ -1502,7 +1815,7 @@ try_cg(Ta, Vs, Tb, Evs, Th, Rs, Le, Vdb, Bef, St0) ->
 try_enter_cg(Ta, Vs, Tb, Evs, Th, Le, Vdb, Bef, St0) ->
     {B,St1} = new_label(St0),			%Body label
     {H,St2} = new_label(St1),			%Handler label
-    TryTag = Ta#l.i,
+    #l{i=TryTag} = get_kanno(Ta),
     Int1 = Bef#sr{stk=put_catch(TryTag, Bef#sr.stk)},
     TryReg = fetch_stack({catch_tag,TryTag}, Int1#sr.stk),
     {Ais,Int2,St3} = cg(Ta, Vdb, Int1, St2#cg{break=B,in_catch=true}),
@@ -1520,7 +1833,7 @@ try_enter_cg(Ta, Vs, Tb, Evs, Th, Le, Vdb, Bef, St0) ->
 
 %% catch_cg(CatchBlock, Ret, Le, Vdb, Bef, St) -> {[Ainstr],Aft,St}.
 
-catch_cg(C, {var,R}, Le, Vdb, Bef, St0) ->
+catch_cg(#cg_block{es=C}, #k_var{name=R}, Le, Vdb, Bef, St0) ->
     {B,St1} = new_label(St0),
     CatchTag = Le#l.i,
     Int1 = Bef#sr{stk=put_catch(CatchTag, Bef#sr.stk)},
@@ -1534,8 +1847,8 @@ catch_cg(C, {var,R}, Le, Vdb, Bef, St0) ->
      clear_dead(Aft, Le#l.i, Vdb),
      St2#cg{break=St1#cg.break,in_catch=St1#cg.in_catch}}.
 
-%% set_cg([Var], Constr, Le, Vdb, Bef, St) -> {[Ainstr],Aft,St}.
-%%  We have to be careful how a 'set' works. First the structure is
+%% put_cg([Var], Constr, Le, Vdb, Bef, St) -> {[Ainstr],Aft,St}.
+%%  We have to be careful how a 'put' works. First the structure is
 %%  built, then it is filled and finally things can be cleared. The
 %%  annotation must reflect this and make sure that the return
 %%  variable is allocated first.
@@ -1543,13 +1856,14 @@ catch_cg(C, {var,R}, Le, Vdb, Bef, St0) ->
 %%  put_list and put_map are atomic instructions, both of
 %%  which can safely resuse one of the source registers as target.
 
-set_cg([{var,R}], {cons,Es}, Le, Vdb, Bef, St) ->
-    [S1,S2] = cg_reg_args(Es, Bef),
+put_cg([#k_var{name=R}], #k_cons{hd=Hd,tl=Tl}, Le, Vdb, Bef, St) ->
+    [S1,S2] = cg_reg_args([Hd,Tl], Bef),
     Int0 = clear_dead(Bef, Le#l.i, Vdb),
     Int1 = Int0#sr{reg=put_reg(R, Int0#sr.reg)},
     Ret = fetch_reg(R, Int1#sr.reg),
     {[{put_list,S1,S2,Ret}], Int1, St};
-set_cg([{var,R}], {binary,Segs}, Le, Vdb, Bef, #cg{bfail=Bfail}=St) ->
+put_cg([#k_var{name=R}], #k_binary{segs=Segs}, Le, Vdb, Bef,
+       #cg{bfail=Bfail}=St) ->
     %% At run-time, binaries are constructed in three stages:
     %% 1) First the size of the binary is calculated.
     %% 2) Then the binary is allocated.
@@ -1577,7 +1891,9 @@ set_cg([{var,R}], {binary,Segs}, Le, Vdb, Bef, #cg{bfail=Bfail}=St) ->
     {Sis++Code,Aft,St};
 
 %% Map: single variable key.
-set_cg([{var,R}], {map,Op,Map,[{map_pair,{var,_}=K,V}]}, Le, Vdb, Bef, St0) ->
+put_cg([#k_var{name=R}], #k_map{op=Op,var=Map,
+                                es=[#k_map_pair{key=#k_var{}=K,val=V}]},
+       Le, Vdb, Bef, St0) ->
     {Sis,Int0} = maybe_adjust_stack(Bef, Le#l.i, Le#l.i+1, Vdb, St0),
 
     SrcReg = cg_reg_arg_prefer_y(Map, Int0),
@@ -1592,22 +1908,23 @@ set_cg([{var,R}], {map,Op,Map,[{map_pair,{var,_}=K,V}]}, Le, Vdb, Bef, St0) ->
     Aft = Aft0#sr{reg=put_reg(R, Aft0#sr.reg)},
     Target = fetch_reg(R, Aft#sr.reg),
 
-    {Is,St1} = set_cg_map(Line, Op, SrcReg, Target, Live, List, St0),
+    {Is,St1} = put_cg_map(Line, Op, SrcReg, Target, Live, List, St0),
     {Sis++Is,Aft,St1};
 
 %% Map: (possibly) multiple literal keys.
-set_cg([{var,R}], {map,Op,Map,Es}, Le, Vdb, Bef, St0) ->
+put_cg([#k_var{name=R}], #k_map{op=Op,var=Map,es=Es}, Le, Vdb, Bef, St0) ->
 
     %% assert key literals
-    [] = [Var||{map_pair,{var,_}=Var,_} <- Es],
+    [] = [Var || #k_map_pair{key=#k_var{}=Var} <- Es],
 
     {Sis,Int0} = maybe_adjust_stack(Bef, Le#l.i, Le#l.i+1, Vdb, St0),
     SrcReg = cg_reg_arg_prefer_y(Map, Int0),
     Line = line(Le#l.a),
 
     %% fetch registers for values to be put into the map
-    Pairs = [{K,V} || {_,K,V} <- Es],
-    List = flatmap(fun({K,V}) -> [K,cg_reg_arg(V,Int0)] end, Pairs),
+    List = flatmap(fun(#k_map_pair{key=K,val=V}) ->
+                           [atomic(K),cg_reg_arg(V, Int0)]
+                   end, Es),
 
     Live = max_reg(Bef#sr.reg),
 
@@ -1616,16 +1933,16 @@ set_cg([{var,R}], {map,Op,Map,Es}, Le, Vdb, Bef, St0) ->
     Aft = Aft0#sr{reg=put_reg(R, Aft0#sr.reg)},
     Target = fetch_reg(R, Aft#sr.reg),
 
-    {Is,St1} = set_cg_map(Line, Op, SrcReg, Target, Live, List, St0),
+    {Is,St1} = put_cg_map(Line, Op, SrcReg, Target, Live, List, St0),
     {Sis++Is,Aft,St1};
 
 %% Everything else.
-set_cg([{var,R}], Con, Le, Vdb, Bef, St) ->
+put_cg([#k_var{name=R}], Con, Le, Vdb, Bef, St) ->
     %% Find a place for the return register first.
     Int = Bef#sr{reg=put_reg(R, Bef#sr.reg)},
     Ret = fetch_reg(R, Int#sr.reg),
     Ais = case Con of
-	      {tuple,Es} ->
+	      #k_tuple{es=Es} ->
 		  [{put_tuple,length(Es),Ret}] ++ cg_build_args(Es, Bef);
 	      Other ->
 		  [{move,cg_reg_arg(Other, Int),Ret}]
@@ -1633,7 +1950,7 @@ set_cg([{var,R}], Con, Le, Vdb, Bef, St) ->
     {Ais,clear_dead(Int, Le#l.i, Vdb),St}.
 
 
-set_cg_map(Line, Op0, SrcReg, Target, Live, List, St0) ->
+put_cg_map(Line, Op0, SrcReg, Target, Live, List, St0) ->
     Bfail = St0#cg.bfail,
     Fail = {f,St0#cg.bfail},
     Op = case Op0 of
@@ -1811,24 +2128,44 @@ cg_gen_binsize([], _, _, _, _, Acc) -> Acc.
 %% cg_bin_opt(Code0) -> Code
 %%  Optimize the size calculations for binary construction.
 
-cg_bin_opt([{move,Size,D},{bs_append,Fail,D,Extra,Regs,U,Bin,Flags,D}|Is]) ->
-    cg_bin_opt([{bs_append,Fail,Size,Extra,Regs,U,Bin,Flags,D}|Is]);
-cg_bin_opt([{move,Size,D},{bs_private_append,Fail,D,U,Bin,Flags,D}|Is]) ->
-    cg_bin_opt([{bs_private_append,Fail,Size,U,Bin,Flags,D}|Is]);
-cg_bin_opt([{move,{integer,0},D},{bs_add,_,[D,{integer,_}=S,1],Dst}|Is]) ->
-    cg_bin_opt([{move,S,Dst}|Is]);
-cg_bin_opt([{move,{integer,0},D},{bs_add,Fail,[D,S,U],Dst}|Is]) ->
-    cg_bin_opt([{bs_add,Fail,[{integer,0},S,U],Dst}|Is]);
-cg_bin_opt([{move,{integer,Bytes},D},{Op,Fail,D,Extra,Regs,Flags,D}|Is])
+cg_bin_opt([{move,S1,{x,X}=D},{gc_bif,Op,Fail,Live0,As,Dst}|Is]) ->
+    Live = if
+               X + 1 =:= Live0 -> X;
+               true -> Live0
+           end,
+    [{gc_bif,Op,Fail,Live,As,D}|cg_bin_opt([{move,S1,Dst}|Is])];
+cg_bin_opt([{move,_,_}=I1,{Op,_,_,_}=I2|Is])
+  when Op =:= bs_utf8_size orelse Op =:= bs_utf16_size ->
+    [I2|cg_bin_opt([I1|Is])];
+cg_bin_opt([{bs_add,_,[{integer,0},Src,1],Dst}|Is]) ->
+    cg_bin_opt_1([{move,Src,Dst}|Is]);
+cg_bin_opt([{bs_add,_,[Src,{integer,0},_],Dst}|Is]) ->
+    cg_bin_opt_1([{move,Src,Dst}|Is]);
+cg_bin_opt(Is) ->
+    cg_bin_opt_1(Is).
+
+cg_bin_opt_1([{move,Size,D},{bs_append,Fail,D,Extra,Regs,U,Bin,Flags,D}|Is]) ->
+    [{bs_append,Fail,Size,Extra,Regs,U,Bin,Flags,D}|cg_bin_opt(Is)];
+cg_bin_opt_1([{move,Size,D},{bs_private_append,Fail,D,U,Bin,Flags,D}|Is]) ->
+    [{bs_private_append,Fail,Size,U,Bin,Flags,D}|cg_bin_opt(Is)];
+cg_bin_opt_1([{move,Size,D},{Op,Fail,D,Extra,Regs,Flags,D}|Is])
   when Op =:= bs_init2; Op =:= bs_init_bits ->
-    cg_bin_opt([{Op,Fail,Bytes,Extra,Regs,Flags,D}|Is]);
-cg_bin_opt([{move,Src1,Dst},{bs_add,Fail,[Dst,Src2,U],Dst}|Is]) ->
-    cg_bin_opt([{bs_add,Fail,[Src1,Src2,U],Dst}|Is]);
-cg_bin_opt([I|Is]) ->
+    Bytes = case Size of
+                {integer,Int} -> Int;
+                _ -> Size
+            end,
+    [{Op,Fail,Bytes,Extra,Regs,Flags,D}|cg_bin_opt(Is)];
+cg_bin_opt_1([{move,S1,D},{bs_add,Fail,[D,S2,U],Dst}|Is]) ->
+    cg_bin_opt([{bs_add,Fail,[S1,S2,U],Dst}|Is]);
+cg_bin_opt_1([{move,S1,D},{bs_add,Fail,[S2,D,U],Dst}|Is]) ->
+    cg_bin_opt([{bs_add,Fail,[S2,S1,U],Dst}|Is]);
+cg_bin_opt_1([I|Is]) ->
     [I|cg_bin_opt(Is)];
-cg_bin_opt([]) -> [].
+cg_bin_opt_1([]) ->
+    [].
 
-cg_bin_put({bin_seg,[],S0,U,T,Fs,[E0,Next]}, Fail, Bef) ->
+cg_bin_put(#k_bin_seg{size=S0,unit=U,type=T,flags=Fs,seg=E0,next=Next},
+           Fail, Bef) ->
     S1 = cg_reg_arg(S0, Bef),
     E1 = cg_reg_arg(E0, Bef),
     {Format,Op} = case T of
@@ -1845,7 +2182,7 @@ cg_bin_put({bin_seg,[],S0,U,T,Fs,[E0,Next]}, Fail, Bef) ->
 	utf ->
 	    [{Op,Fail,{field_flags,Fs},E1}|cg_bin_put(Next, Fail, Bef)]
     end;
-cg_bin_put({bin_end,[]}, _, _) -> [].
+cg_bin_put(#k_bin_end{}, _, _) -> [].
 
 cg_build_args(As, Bef) ->
     [{put,cg_reg_arg(A, Bef)} || A <- As].
@@ -1899,11 +2236,11 @@ get_locked_regs([], _) -> [].
 
 cg_reg_args(As, Bef) -> [cg_reg_arg(A, Bef) || A <- As].
 
-cg_reg_arg({var,V}, Bef) -> fetch_var(V, Bef);
-cg_reg_arg(Literal, _) -> Literal.
+cg_reg_arg(#k_var{name=V}, Bef) -> fetch_var(V, Bef);
+cg_reg_arg(Literal, _) -> atomic(Literal).
 
-cg_reg_arg_prefer_y({var,V}, Bef) -> fetch_var_prefer_y(V, Bef);
-cg_reg_arg_prefer_y(Literal, _) -> Literal.
+cg_reg_arg_prefer_y(#k_var{name=V}, Bef) -> fetch_var_prefer_y(V, Bef);
+cg_reg_arg_prefer_y(Literal, _) -> atomic(Literal).
 
 %% cg_setup_call([Arg], Bef, Cur, Vdb) -> {[Instr],Aft}.
 %%  Do the complete setup for a call/enter.
@@ -1941,9 +2278,9 @@ cg_call_args(As, Bef, I, Vdb) ->
 
 load_arg_regs(Regs, As) -> load_arg_regs(Regs, As, 0).
 
-load_arg_regs([_|Rs], [{var,V}|As], I) -> [{I,V}|load_arg_regs(Rs, As, I+1)];
+load_arg_regs([_|Rs], [#k_var{name=V}|As], I) -> [{I,V}|load_arg_regs(Rs, As, I+1)];
 load_arg_regs([_|Rs], [A|As], I) -> [{I,A}|load_arg_regs(Rs, As, I+1)];
-load_arg_regs([], [{var,V}|As], I) -> [{I,V}|load_arg_regs([], As, I+1)];
+load_arg_regs([], [#k_var{name=V}|As], I) -> [{I,V}|load_arg_regs([], As, I+1)];
 load_arg_regs([], [A|As], I) -> [{I,A}|load_arg_regs([], As, I+1)];
 load_arg_regs(Rs, [], _) -> Rs.
 
@@ -1979,12 +2316,13 @@ move_unsaved([], _, Regs, Acc) -> {Acc,Regs}.
 
 gen_moves(As, Sr) -> gen_moves(As, Sr, 0, []).
 
-gen_moves([{var,V}|As], Sr, I, Acc) ->
+gen_moves([#k_var{name=V}|As], Sr, I, Acc) ->
     case fetch_var(V, Sr) of
 	{x,I} -> gen_moves(As, Sr, I+1, Acc);
 	Reg -> gen_moves(As, Sr, I+1, [{move,Reg,{x,I}}|Acc])
     end;
-gen_moves([A|As], Sr, I, Acc) ->
+gen_moves([A0|As], Sr, I, Acc) ->
+    A = atomic(A0),
     gen_moves(As, Sr, I+1, [{move,A,{x,I}}|Acc]);
 gen_moves([], _, _, Acc) -> lists:keysort(3, Acc).
 
@@ -2153,7 +2491,7 @@ fetch_var_prefer_y(V, #sr{reg=Reg,stk=Stk}) ->
     end.
 
 load_vars(Vs, Regs) ->
-    foldl(fun ({var,V}, Rs) -> put_reg(V, Rs) end, Regs, Vs).
+    foldl(fun (#k_var{name=V}, Rs) -> put_reg(V, Rs) end, Regs, Vs).
 
 %% put_reg(Val, Regs) -> Regs.
 %% find_reg(Val, Regs) -> {ok,r{R}} | error.
@@ -2254,6 +2592,16 @@ put_catch(Tag, [Other|Stk], Acc) ->
 drop_catch(Tag, [{{catch_tag,Tag}}|Stk]) -> [free|Stk];
 drop_catch(Tag, [Other|Stk]) -> [Other|drop_catch(Tag, Stk)].
 
+%% atomic(Klit) -> Lit.
+%% atomic_list([Klit]) -> [Lit].
+
+atomic(#k_literal{val=V}) -> {literal,V};
+atomic(#k_int{val=I}) -> {integer,I};
+atomic(#k_float{val=F}) -> {float,F};
+atomic(#k_atom{val=A}) -> {atom,A};
+%%atomic(#k_char{val=C}) -> {char,C};
+atomic(#k_nil{}) -> nil.
+
 %% new_label(St) -> {L,St}.
 
 new_label(#cg{lcount=Next}=St) ->
@@ -2296,3 +2644,86 @@ flatmapfoldl(F, Accu0, [Hd|Tail]) ->
     {Rs,Accu2} = flatmapfoldl(F, Accu1, Tail),
     {R++Rs,Accu2};
 flatmapfoldl(_, Accu, []) -> {[],Accu}.
+
+%% Keep track of life time for variables.
+%%
+%% init_vars([{var,VarName}]) -> Vdb.
+%% new_vars([VarName], I, Vdb) -> Vdb.
+%% use_vars([VarName], I, Vdb) -> Vdb.
+%% add_var(VarName, F, L, Vdb) -> Vdb.
+%%
+%% The list of variable names for new_vars/3 and use_vars/3
+%% must be sorted.
+
+init_vars(Vs) ->
+    vdb_new(Vs).
+
+new_vars([], _, Vdb) -> Vdb;
+new_vars([V], I, Vdb) -> vdb_store_new(V, {V,I,I}, Vdb);
+new_vars(Vs, I, Vdb) -> vdb_update_vars(Vs, Vdb, I).
+
+use_vars([], _, Vdb) ->
+    Vdb;
+use_vars([V], I, Vdb) ->
+    case vdb_find(V, Vdb) of
+        {V,F,L} when I > L -> vdb_update(V, {V,F,I}, Vdb);
+        {V,_,_} -> Vdb;
+        error -> vdb_store_new(V, {V,I,I}, Vdb)
+    end;
+use_vars(Vs, I, Vdb) -> vdb_update_vars(Vs, Vdb, I).
+
+add_var(V, F, L, Vdb) ->
+    vdb_store_new(V, {V,F,L}, Vdb).
+
+%% vdb
+
+vdb_new(Vs) ->
+    ordsets:from_list([{V,0,0} || #k_var{name=V} <- Vs]).
+
+-type var() :: atom().
+
+-spec vdb_find(var(), [vdb_entry()]) -> 'error' | vdb_entry().
+
+vdb_find(V, Vdb) ->
+    case lists:keyfind(V, 1, Vdb) of
+        false -> error;
+        Vd -> Vd
+    end.
+
+vdb_update(V, Update, [{V,_,_}|Vdb]) ->
+    [Update|Vdb];
+vdb_update(V, Update, [Vd|Vdb]) ->
+    [Vd|vdb_update(V, Update, Vdb)].
+
+vdb_store_new(V, New, [{V1,_,_}=Vd|Vdb]) when V > V1 ->
+    [Vd|vdb_store_new(V, New, Vdb)];
+vdb_store_new(V, New, [{V1,_,_}|_]=Vdb) when V < V1 ->
+    [New|Vdb];
+vdb_store_new(_, New, []) -> [New].
+
+vdb_update_vars([V|_]=Vs, [{V1,_,_}=Vd|Vdb], I) when V > V1 ->
+    [Vd|vdb_update_vars(Vs, Vdb, I)];
+vdb_update_vars([V|Vs], [{V1,_,_}|_]=Vdb, I) when V < V1 ->
+    %% New variable.
+    [{V,I,I}|vdb_update_vars(Vs, Vdb, I)];
+vdb_update_vars([V|Vs], [{_,F,L}=Vd|Vdb], I) ->
+    %% Existing variable.
+    if
+        I > L -> [{V,F,I}|vdb_update_vars(Vs, Vdb, I)];
+        true ->  [Vd|vdb_update_vars(Vs, Vdb, I)]
+    end;
+vdb_update_vars([V|Vs], [], I) ->
+    %% New variable.
+    [{V,I,I}|vdb_update_vars(Vs, [], I)];
+vdb_update_vars([], Vdb, _) -> Vdb.
+
+%% vdb_sub(Min, Max, Vdb) -> Vdb.
+%%  Extract variables which are used before and after Min.  Lock
+%%  variables alive after Max.
+
+vdb_sub(Min, Max, Vdb) ->
+    [ if L >= Max -> {V,F,locked};
+         true -> Vd
+      end || {V,F,L}=Vd <- Vdb,
+             F < Min,
+             L >= Min ].
diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl
index 1fc05109c5..3eea058153 100644
--- a/lib/compiler/src/v3_kernel.erl
+++ b/lib/compiler/src/v3_kernel.erl
@@ -82,7 +82,8 @@
 -export([module/2,format_error/1]).
 
 -import(lists, [map/2,foldl/3,foldr/3,mapfoldl/3,splitwith/2,member/2,
-		keymember/3,keyfind/3,partition/2,droplast/1,last/1,sort/1]).
+		keymember/3,keyfind/3,partition/2,droplast/1,last/1,sort/1,
+                reverse/1]).
 -import(ordsets, [add_element/2,del_element/2,union/2,union/1,subtract/2]).
 -import(cerl, [c_tuple/1]).
 
@@ -159,8 +160,7 @@ function({#c_var{name={F,Arity}=FA},Body}, St0) ->
 	{#ifun{anno=Ab,vars=Kvs,body=B0},[],St2} = expr(Body, new_sub(), St1),
 	{B1,_,St3} = ubody(B0, return, St2),
 	%%B1 = B0, St3 = St2,				%Null second pass
-	{#k_fdef{anno=#k{us=[],ns=[],a=Ab},
-		 func=F,arity=Arity,vars=Kvs,body=B1},St3}
+        {make_fdef(#k{us=[],ns=[],a=Ab}, F, Arity, Kvs, B1),St3}
     catch
 	Class:Error ->
 	    Stack = erlang:get_stacktrace(),
@@ -1589,23 +1589,18 @@ match_var([U|Us], Cs0, Def, St) ->
 %%  according to type, the order is really irrelevant but tries to be
 %%  smart.
 
-match_con(Us, [C], Def, St) ->
-    %% There is only one clause. We can keep literal tuples and
-    %% lists, but we must convert []/integer/float/atom literals
-    %% to the proper record (#k_nil{} and so on).
-    Cs = [expand_pat_lit_clause(C, false)],
-    match_con_1(Us, Cs, Def, St);
 match_con(Us, Cs0, Def, St) ->
-    %% More than one clause. Remove literals at the top level.
-    Cs = [expand_pat_lit_clause(C, true) || C <- Cs0],
+    %% Expand literals at the top level.
+    Cs = [expand_pat_lit_clause(C) || C <- Cs0],
     match_con_1(Us, Cs, Def, St).
 
 match_con_1([U|_Us] = L, Cs, Def, St0) ->
     %% Extract clauses for different constructors (types).
     %%ok = io:format("match_con ~p~n", [Cs]),
-    Ttcs = select_types([k_binary], Cs) ++ select_bin_con(Cs) ++
-	select_types([k_cons,k_tuple,k_map,k_atom,k_float,k_int,
-		      k_nil,k_literal], Cs),
+    Ttcs0 = select_types([k_binary], Cs) ++ select_bin_con(Cs) ++
+        select_types([k_cons,k_tuple,k_map,k_atom,k_float,
+                      k_int,k_nil], Cs),
+    Ttcs = opt_single_valued(Ttcs0),
     %%ok = io:format("ttcs = ~p~n", [Ttcs]),
     {Scs,St1} =
 	mapfoldl(fun ({T,Tcs}, St) ->
@@ -1618,28 +1613,14 @@ match_con_1([U|_Us] = L, Cs, Def, St0) ->
 
 select_types(Types, Cs) ->
     [{T,Tcs} || T <- Types, begin Tcs = select(T, Cs), Tcs =/= [] end].
-    
-expand_pat_lit_clause(#iclause{pats=[#ialias{pat=#k_literal{anno=A,val=Val}}=Alias|Ps]}=C, B) ->
-    P = case B of
-	    true -> expand_pat_lit(Val, A);
-	    false -> literal(Val, A)
-	end,
+
+expand_pat_lit_clause(#iclause{pats=[#ialias{pat=#k_literal{anno=A,val=Val}}=Alias|Ps]}=C) ->
+    P = expand_pat_lit(Val, A),
     C#iclause{pats=[Alias#ialias{pat=P}|Ps]};
-expand_pat_lit_clause(#iclause{pats=[#k_literal{anno=A,val=Val}|Ps]}=C, B) ->
-    P = case B of
-	    true -> expand_pat_lit(Val, A);
-	    false -> literal(Val, A)
-	end,
+expand_pat_lit_clause(#iclause{pats=[#k_literal{anno=A,val=Val}|Ps]}=C) ->
+    P = expand_pat_lit(Val, A),
     C#iclause{pats=[P|Ps]};
-expand_pat_lit_clause(#iclause{pats=[#k_binary{anno=A,segs=#k_bin_end{}}|Ps]}=C, B) ->
-    case B of
-	true ->
-	    C;
-	false ->
-	    P = #k_literal{anno=A,val = <<>>},
-	    C#iclause{pats=[P|Ps]}
-    end;
-expand_pat_lit_clause(C, _) -> C.
+expand_pat_lit_clause(C) -> C.
 
 expand_pat_lit([H|T], A) ->
     #k_cons{anno=A,hd=literal(H, A),tl=literal(T, A)};
@@ -1659,6 +1640,107 @@ literal(Val, A) when is_atom(Val) ->
 literal(Val, A) when is_list(Val); is_tuple(Val) ->
     #k_literal{anno=A,val=Val}.
 
+%% opt_singled_valued([{Type,Clauses}]) -> [{Type,Clauses}].
+%%  If a type only has one clause and if the pattern is literal,
+%%  the matching can be done more efficiently by directly comparing
+%%  with the literal (that is especially true for binaries).
+
+opt_single_valued(Ttcs) ->
+    opt_single_valued(Ttcs, [], []).
+
+opt_single_valued([{_,[#iclause{pats=[P0|Ps]}=Tc]}=Ttc|Ttcs], TtcAcc, LitAcc) ->
+    try combine_lit_pat(P0) of
+        P ->
+            LitTtc = Tc#iclause{pats=[P|Ps]},
+            opt_single_valued(Ttcs, TtcAcc, [LitTtc|LitAcc])
+    catch
+        not_possible ->
+            opt_single_valued(Ttcs, [Ttc|TtcAcc], LitAcc)
+    end;
+opt_single_valued([Ttc|Ttcs], TtcAcc, LitAcc) ->
+    opt_single_valued(Ttcs, [Ttc|TtcAcc], LitAcc);
+opt_single_valued([], TtcAcc, []) ->
+    reverse(TtcAcc);
+opt_single_valued([], TtcAcc, LitAcc) ->
+    Literals = {k_literal,reverse(LitAcc)},
+    %% Test the literals as early as possible.
+    case reverse(TtcAcc) of
+        [{k_binary,_}=Bin|Ttcs] ->
+            %% The delayed creation of sub binaries requires
+            %% bs_start_match2 to be the first instruction in the
+            %% function.
+            [Bin,Literals|Ttcs];
+        Ttcs ->
+            [Literals|Ttcs]
+    end.
+
+combine_lit_pat(#ialias{pat=Pat0}=Alias) ->
+    Pat = combine_lit_pat(Pat0),
+    Alias#ialias{pat=Pat};
+combine_lit_pat(Pat) ->
+    case do_combine_lit_pat(Pat) of
+        #k_literal{val=Val} when is_atom(Val) ->
+            throw(not_possible);
+        #k_literal{val=Val} when is_number(Val) ->
+            throw(not_possible);
+        #k_literal{val=[]} ->
+            throw(not_possible);
+        #k_literal{}=Lit ->
+            Lit
+    end.
+
+do_combine_lit_pat(#k_atom{anno=A,val=Val}) ->
+    #k_literal{anno=A,val=Val};
+do_combine_lit_pat(#k_float{anno=A,val=Val}) ->
+    #k_literal{anno=A,val=Val};
+do_combine_lit_pat(#k_int{anno=A,val=Val}) ->
+    #k_literal{anno=A,val=Val};
+do_combine_lit_pat(#k_nil{anno=A}) ->
+    #k_literal{anno=A,val=[]};
+do_combine_lit_pat(#k_binary{anno=A,segs=Segs}) ->
+    Bin = combine_bin_segs(Segs),
+    #k_literal{anno=A,val=Bin};
+do_combine_lit_pat(#k_cons{anno=A,hd=Hd0,tl=Tl0}) ->
+    #k_literal{val=Hd} = do_combine_lit_pat(Hd0),
+    #k_literal{val=Tl} = do_combine_lit_pat(Tl0),
+    #k_literal{anno=A,val=[Hd|Tl]};
+do_combine_lit_pat(#k_literal{}=Lit) ->
+    Lit;
+do_combine_lit_pat(#k_tuple{anno=A,es=Es0}) ->
+    Es = [begin
+              #k_literal{val=Lit} = do_combine_lit_pat(El),
+              Lit
+          end || El <- Es0],
+    #k_literal{anno=A,val=list_to_tuple(Es)};
+do_combine_lit_pat(_) ->
+    throw(not_possible).
+
+combine_bin_segs(#k_bin_seg{size=Size0,unit=Unit,type=integer,
+                            flags=[unsigned,big],seg=Seg,next=Next}) ->
+    #k_literal{val=Size1} = do_combine_lit_pat(Size0),
+    #k_literal{val=Int} = do_combine_lit_pat(Seg),
+    Size = Size1 * Unit,
+    if
+        0 < Size, Size < 64 ->
+            Bin = <<Int:Size>>,
+            case Bin of
+                <<Int:Size>> ->
+                    NextBin = combine_bin_segs(Next),
+                    <<Bin/bits,NextBin/bits>>;
+                _ ->
+                    %% The integer Int does not fit in the segment,
+                    %% thus it will not match.
+                    throw(not_possible)
+            end;
+        true ->
+            %% Avoid creating huge binary literals.
+            throw(not_possible)
+    end;
+combine_bin_segs(#k_bin_end{}) ->
+    <<>>;
+combine_bin_segs(_) ->
+    throw(not_possible).
+
 %% select_bin_con([Clause]) -> [{Type,[Clause]}].
 %%  Extract clauses for the k_bin_seg constructor.  As k_bin_seg
 %%  matching can overlap, the k_bin_seg constructors cannot be
@@ -2179,9 +2261,8 @@ iletrec_funs_gen(Fs, FreeVs, St) ->
 		  Arity0 = length(Vs),
 		  {Fb1,_,Lst1} = ubody(Fb0, return, Lst0#kern{ff={N,Arity0}}),
 		  Arity = Arity0 + length(FreeVs),
-		  Fun = #k_fdef{anno=#k{us=[],ns=[],a=Fa},
-				func=N,arity=Arity,
-				vars=Vs ++ FreeVs,body=Fb1},
+                  Fun = make_fdef(#k{us=[],ns=[],a=Fa}, N, Arity,
+                                  Vs++FreeVs, Fb1),
 		  Lst1#kern{funs=[Fun|Lst1#kern.funs]}
 	  end, St, Fs).
 
@@ -2325,8 +2406,7 @@ uexpr(#ifun{anno=A,vars=Vs,body=B0}, {break,Rs}, St0) ->
 		%% No id annotation. Must invent a fun name.
 		new_fun_name(St1)
 	end,
-    Fun = #k_fdef{anno=#k{us=[],ns=[],a=A},func=Fname,arity=Arity,
-		  vars=Vs ++ Fvs,body=B1},
+    Fun = make_fdef(#k{us=[],ns=[],a=A}, Fname, Arity, Vs++Fvs, B1),
     {#k_bif{anno=#k{us=Free,ns=lit_list_vars(Rs),a=A},
 	    op=#k_internal{name=make_fun,arity=length(Free)+2},
 	    args=[#k_atom{val=Fname},#k_int{val=Arity}|Fvs],
@@ -2343,6 +2423,16 @@ uexpr(Lit, {break,Rs0}, St0) ->
 add_local_function(_, #kern{funs=ignore}=St) -> St;
 add_local_function(F, #kern{funs=Funs}=St) -> St#kern{funs=[F|Funs]}.
 
+%% Make a #k_fdef{}, making sure that the body is always a #k_match{}.
+make_fdef(Anno, Name, Arity, Vs, #k_match{}=Body) ->
+    #k_fdef{anno=Anno,func=Name,arity=Arity,vars=Vs,body=Body};
+make_fdef(Anno, Name, Arity, Vs, Body) ->
+    Ka = get_kanno(Body),
+    Match = #k_match{anno=#k{us=Ka#k.us,ns=[],a=Ka#k.a},
+                     vars=Vs,body=Body,ret=[]},
+    #k_fdef{anno=Anno,func=Name,arity=Arity,vars=Vs,body=Match}.
+
+
 %% handle_reuse_annos([#k_var{}], State) -> State.
 %%  In general, it is only safe to reuse a variable for a match context
 %%  if the original value of the variable will no longer be needed.
diff --git a/lib/compiler/src/v3_kernel.hrl b/lib/compiler/src/v3_kernel.hrl
index 7cd30b25a8..87011b7680 100644
--- a/lib/compiler/src/v3_kernel.hrl
+++ b/lib/compiler/src/v3_kernel.hrl
@@ -79,7 +79,7 @@
 -record(k_guard_clause, {anno=[],guard,body}).
 
 -record(k_break, {anno=[],args=[]}).
--record(k_guard_break, {anno=[],args=[]}).
+-record(k_guard_break, {anno=[],args=[],locked=[]}).
 -record(k_return, {anno=[],args=[]}).
 
 %%k_get_anno(Thing) -> element(2, Thing).
diff --git a/lib/compiler/src/v3_kernel_pp.erl b/lib/compiler/src/v3_kernel_pp.erl
index 53097d0d7d..ac91039ae0 100644
--- a/lib/compiler/src/v3_kernel_pp.erl
+++ b/lib/compiler/src/v3_kernel_pp.erl
@@ -491,7 +491,7 @@ indent(Ctxt) -> indent(Ctxt#ctxt.indent, Ctxt).
 indent(N, _Ctxt) when N =< 0 -> "";
 indent(N, Ctxt) ->
     T = Ctxt#ctxt.tab_width,
-    string:chars($\t, N div T, string:chars($\s, N rem T)).
+    lists:duplicate(N div T, $\t) ++ lists:duplicate(N rem T, $\s).
 
 nl_indent(Ctxt) -> [$\n|indent(Ctxt)].
 
@@ -508,7 +508,7 @@ unindent([$\t|T], N, Ctxt, C) ->
     if N >= Tab ->
 	    unindent(T, N - Tab, Ctxt, C);
        true ->
-	    unindent([string:chars($\s, Tab - N)|T], 0, Ctxt, C)
+            unindent([lists:duplicate(Tab - N, $\s)|T], 0, Ctxt, C)
     end;
 unindent([L|T], N, Ctxt, C) when is_list(L) ->
     unindent(L, N, Ctxt, [T|C]);
diff --git a/lib/compiler/src/v3_life.erl b/lib/compiler/src/v3_life.erl
deleted file mode 100644
index be3ade47ff..0000000000
--- a/lib/compiler/src/v3_life.erl
+++ /dev/null
@@ -1,468 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
-%%
-%% Licensed under the Apache License, Version 2.0 (the "License");
-%% you may not use this file except in compliance with the License.
-%% You may obtain a copy of the License at
-%%
-%%     http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%%
-%% %CopyrightEnd%
-%%
-%% Purpose : Convert annotated kernel expressions to annotated beam format.
-
-%% This module creates beam format annotated with variable lifetime
-%% information.  Each thing is given an index and for each variable we
-%% store the first and last index for its occurrence.  The variable
-%% database, VDB, attached to each thing is only relevant internally
-%% for that thing.
-%%
-%% For nested things like matches the numbering continues locally and
-%% the VDB for that thing refers to the variable usage within that
-%% thing.  Variables which live through a such a thing are internally
-%% given a very large last index.  Internally the indexes continue
-%% after the index of that thing.  This creates no problems as the
-%% internal variable info never escapes and externally we only see
-%% variable which are alive both before or after.
-%%
-%% This means that variables never "escape" from a thing and the only
-%% way to get values from a thing is to "return" them, with 'break' or
-%% 'return'.  Externally these values become the return values of the
-%% thing.  This is no real limitation as most nested things have
-%% multiple threads so working out a common best variable usage is
-%% difficult.
-
--module(v3_life).
-
--export([module/2]).
-
--export([vdb_find/2]).
-
--import(lists, [member/2,map/2,reverse/1,sort/1]).
--import(ordsets, [add_element/2,intersection/2,union/2]).
-
--include("v3_kernel.hrl").
--include("v3_life.hrl").
-
--type fa() :: {atom(),arity()}.
-
-%% These are not defined in v3_kernel.hrl.
-get_kanno(Kthing) -> element(2, Kthing).
-%%set_kanno(Kthing, Anno) -> setelement(2, Kthing, Anno).
-
--spec module(#k_mdef{}, [compile:option()]) ->
-                    {'ok',{module(),[fa()],[_],[_]}}.
-
-module(#k_mdef{name=M,exports=Es,attributes=As,body=Fs0}, _Opts) ->
-    Fs1 = functions(Fs0, []),
-    {ok,{M,Es,As,Fs1}}.
-
-functions([F|Fs], Acc) ->
-    functions(Fs, [function(F)|Acc]);
-functions([], Acc) -> reverse(Acc).
-
-%% function(Kfunc) -> Func.
-
-function(#k_fdef{anno=#k{a=Anno},func=F,arity=Ar,vars=Vs,body=Kb}) ->
-    try
-	As = var_list(Vs),
-	Vdb0 = init_vars(As),
-	%% Force a top-level match!
-	B0 = case Kb of
-		 #k_match{} -> Kb;
-		 _ ->
-		     Ka = get_kanno(Kb),
-		     #k_match{anno=#k{us=Ka#k.us,ns=[],a=Ka#k.a},
-			      vars=Vs,body=Kb,ret=[]}
-	     end,
-	{B1,_,Vdb1} = body(B0, 1, Vdb0),
-	{function,F,Ar,As,B1,Vdb1,Anno}
-    catch
-	Class:Error ->
-	    Stack = erlang:get_stacktrace(),
-	    io:fwrite("Function: ~w/~w\n", [F,Ar]),
-	    erlang:raise(Class, Error, Stack)
-    end.
-
-%% body(Kbody, I, Vdb) -> {[Expr],MaxI,Vdb}.
-%%  Handle a body.
-
-body(#k_seq{arg=Ke,body=Kb}, I, Vdb0) ->
-    %%ok = io:fwrite("life ~w:~p~n", [?LINE,{Ke,I,Vdb0}]),
-    A = get_kanno(Ke),
-    Vdb1 = use_vars(union(A#k.us, A#k.ns), I, Vdb0),
-    {Es,MaxI,Vdb2} = body(Kb, I+1, Vdb1),
-    E = expr(Ke, I, Vdb2),
-    {[E|Es],MaxI,Vdb2};
-body(Ke, I, Vdb0) ->
-    %%ok = io:fwrite("life ~w:~p~n", [?LINE,{Ke,I,Vdb0}]),
-    A = get_kanno(Ke),
-    Vdb1 = use_vars(union(A#k.us, A#k.ns), I, Vdb0),
-    E = expr(Ke, I, Vdb1),
-    {[E],I,Vdb1}.
-
-%% protected(Kprotected, I, Vdb) -> Protected.
-%%  Only used in guards.
-
-protected(#k_protected{anno=A,arg=Ts,ret=Rs}, I, Vdb) ->
-    %% Lock variables that are alive before try and used afterwards.
-    %% Don't lock variables that are only used inside the protected
-    %% expression.
-    Pdb0 = vdb_sub(I, I+1, Vdb),
-    {T,MaxI,Pdb1} = body(Ts, I+1, Pdb0),
-    Pdb2 = use_vars(A#k.ns, MaxI+1, Pdb1),	%Save "return" values
-    #l{ke={protected,T,var_list(Rs)},i=I,a=A#k.a,vdb=Pdb2}.
-
-%% expr(Kexpr, I, Vdb) -> Expr.
-
-expr(#k_test{anno=A,op=Op,args=As,inverted=Inverted}, I, _Vdb) ->
-    #l{ke={test,test_op(Op),atomic_list(As),Inverted},i=I,a=A#k.a};
-expr(#k_call{anno=A,op=Op,args=As,ret=Rs}, I, _Vdb) ->
-    #l{ke={call,call_op(Op),atomic_list(As),var_list(Rs)},i=I,a=A#k.a};
-expr(#k_enter{anno=A,op=Op,args=As}, I, _Vdb) ->
-    #l{ke={enter,call_op(Op),atomic_list(As)},i=I,a=A#k.a};
-expr(#k_bif{anno=A,op=Op,args=As,ret=Rs}, I, _Vdb) ->
-    Bif = k_bif(A, Op, As, Rs),
-    #l{ke=Bif,i=I,a=A#k.a};
-expr(#k_match{anno=A,body=Kb,ret=Rs}, I, Vdb) ->
-    %% Work out imported variables which need to be locked.
-    Mdb = vdb_sub(I, I+1, Vdb),
-    M = match(Kb, A#k.us, I+1, [], Mdb),
-    #l{ke={match,M,var_list(Rs)},i=I,vdb=use_vars(A#k.us, I+1, Mdb),a=A#k.a};
-expr(#k_guard_match{anno=A,body=Kb,ret=Rs}, I, Vdb) ->
-    %% Work out imported variables which need to be locked.
-    Mdb = vdb_sub(I, I+1, Vdb),
-    M = match(Kb, A#k.us, I+1, [], Mdb),
-    #l{ke={guard_match,M,var_list(Rs)},i=I,vdb=use_vars(A#k.us, I+1, Mdb),a=A#k.a};
-expr(#k_try{}=Try, I, Vdb) ->
-    body_try(Try, I, Vdb);
-expr(#k_protected{}=Protected, I, Vdb) ->
-    protected(Protected, I, Vdb);
-expr(#k_try_enter{anno=A,arg=Ka,vars=Vs,body=Kb,evars=Evs,handler=Kh}, I, Vdb) ->
-    %% Lock variables that are alive before the catch and used afterwards.
-    %% Don't lock variables that are only used inside the try.
-    Tdb0 = vdb_sub(I, I+1, Vdb),
-    %% This is the tricky bit. Lock variables in Arg that are used in
-    %% the body and handler. Add try tag 'variable'.
-    Ab = get_kanno(Kb),
-    Ah = get_kanno(Kh),
-    Tdb1 = use_vars(union(Ab#k.us, Ah#k.us), I+3, Tdb0),
-    Tdb2 = vdb_sub(I, I+2, Tdb1),
-    Vnames = fun (Kvar) -> Kvar#k_var.name end,	%Get the variable names
-    {Aes,_,Adb} = body(Ka, I+2, add_var({catch_tag,I+1}, I+1, 1000000, Tdb2)),
-    {Bes,_,Bdb} = body(Kb, I+4, new_vars(sort(map(Vnames, Vs)), I+3, Tdb2)),
-    {Hes,_,Hdb} = body(Kh, I+4, new_vars(sort(map(Vnames, Evs)), I+3, Tdb2)),
-    #l{ke={try_enter,#l{ke={block,Aes},i=I+1,vdb=Adb,a=[]},
-	   var_list(Vs),#l{ke={block,Bes},i=I+3,vdb=Bdb,a=[]},
-	   var_list(Evs),#l{ke={block,Hes},i=I+3,vdb=Hdb,a=[]}},
-       i=I,vdb=Tdb1,a=A#k.a};
-expr(#k_catch{anno=A,body=Kb,ret=[R]}, I, Vdb) ->
-    %% Lock variables that are alive before the catch and used afterwards.
-    %% Don't lock variables that are only used inside the catch.
-    %% Add catch tag 'variable'.
-    Cdb0 = vdb_sub(I, I+1, Vdb),
-    {Es,_,Cdb1} = body(Kb, I+1, add_var({catch_tag,I}, I, locked, Cdb0)),
-    #l{ke={'catch',Es,variable(R)},i=I,vdb=Cdb1,a=A#k.a};
-expr(#k_receive{anno=A,var=V,body=Kb,timeout=T,action=Ka,ret=Rs}, I, Vdb) ->
-    %% Work out imported variables which need to be locked.
-    Rdb = vdb_sub(I, I+1, Vdb),
-    M = match(Kb, add_element(V#k_var.name, A#k.us), I+1, [],
-	      new_vars([V#k_var.name], I, Rdb)),
-    {Tes,_,Adb} = body(Ka, I+1, Rdb),
-    #l{ke={receive_loop,atomic(T),variable(V),M,
-	   #l{ke=Tes,i=I+1,vdb=Adb,a=[]},var_list(Rs)},
-       i=I,vdb=use_vars(A#k.us, I+1, Vdb),a=A#k.a};
-expr(#k_receive_accept{anno=A}, I, _Vdb) ->
-    #l{ke=receive_accept,i=I,a=A#k.a};
-expr(#k_receive_next{anno=A}, I, _Vdb) ->
-    #l{ke=receive_next,i=I,a=A#k.a};
-expr(#k_put{anno=A,arg=Arg,ret=Rs}, I, _Vdb) ->
-    #l{ke={set,var_list(Rs),literal(Arg, [])},i=I,a=A#k.a};
-expr(#k_break{anno=A,args=As}, I, _Vdb) ->
-    #l{ke={break,atomic_list(As)},i=I,a=A#k.a};
-expr(#k_guard_break{anno=A,args=As}, I, Vdb) ->
-    Locked = [V || {V,_,_} <- Vdb],
-    #l{ke={guard_break,atomic_list(As),Locked},i=I,a=A#k.a};
-expr(#k_return{anno=A,args=As}, I, _Vdb) ->
-    #l{ke={return,atomic_list(As)},i=I,a=A#k.a}.
-
-body_try(#k_try{anno=A,arg=Ka,vars=Vs,body=Kb,evars=Evs,handler=Kh,ret=Rs},
-	 I, Vdb) ->
-    %% Lock variables that are alive before the catch and used afterwards.
-    %% Don't lock variables that are only used inside the try.
-    Tdb0 = vdb_sub(I, I+1, Vdb),
-    %% This is the tricky bit. Lock variables in Arg that are used in
-    %% the body and handler. Add try tag 'variable'.
-    Ab = get_kanno(Kb),
-    Ah = get_kanno(Kh),
-    Tdb1 = use_vars(union(Ab#k.us, Ah#k.us), I+3, Tdb0),
-    Tdb2 = vdb_sub(I, I+2, Tdb1),
-    Vnames = fun (Kvar) -> Kvar#k_var.name end,	%Get the variable names
-    {Aes,_,Adb} = body(Ka, I+2, add_var({catch_tag,I+1}, I+1, locked, Tdb2)),
-    {Bes,_,Bdb} = body(Kb, I+4, new_vars(sort(map(Vnames, Vs)), I+3, Tdb2)),
-    {Hes,_,Hdb} = body(Kh, I+4, new_vars(sort(map(Vnames, Evs)), I+3, Tdb2)),
-    #l{ke={'try',#l{ke={block,Aes},i=I+1,vdb=Adb,a=[]},
-	   var_list(Vs),#l{ke={block,Bes},i=I+3,vdb=Bdb,a=[]},
-	   var_list(Evs),#l{ke={block,Hes},i=I+3,vdb=Hdb,a=[]},
-	   var_list(Rs)},
-       i=I,vdb=Tdb1,a=A#k.a}.
-
-%% call_op(Op) -> Op.
-%% test_op(Op) -> Op.
-%%  Do any necessary name translations here to munge into beam format.
-
-call_op(#k_local{name=N}) -> N; 
-call_op(#k_remote{mod=M,name=N}) -> {remote,atomic(M),atomic(N)};
-call_op(Other) -> variable(Other).
-
-test_op(#k_remote{mod=#k_atom{val=erlang},name=#k_atom{val=N}}) -> N.
-
-%% k_bif(Anno, Op, [Arg], [Ret], Vdb) -> Expr.
-%%  Build bifs.
-
-k_bif(_A, #k_internal{name=Name}, As, Rs) ->
-    {internal,Name,atomic_list(As),var_list(Rs)};
-k_bif(_A, #k_remote{mod=#k_atom{val=erlang},name=#k_atom{val=Name}}, As, Rs) ->
-    Ar = length(As),
-    case is_gc_bif(Name, Ar) of
-	false ->
-	    {bif,Name,atomic_list(As),var_list(Rs)};
-	true ->
-	    {gc_bif,Name,atomic_list(As),var_list(Rs)}
-    end.
-
-%% match(Kexpr, [LockVar], I, Vdb) -> Expr.
-%%  Convert match tree to old format.
-
-match(#k_alt{anno=A,first=Kf,then=Kt}, Ls, I, Ctxt, Vdb0) ->
-    Vdb1 = use_vars(union(A#k.us, Ls), I, Vdb0),
-    F = match(Kf, Ls, I+1, Ctxt, Vdb1),
-    T = match(Kt, Ls, I+1, Ctxt, Vdb1),
-    #l{ke={alt,F,T},i=I,vdb=Vdb1,a=A#k.a};
-match(#k_select{anno=A,var=V,types=Kts}, Ls0, I, Ctxt, Vdb0) ->
-    Vanno = get_kanno(V),
-    Ls1 = case member(no_usage, Vanno) of
-	      false -> add_element(V#k_var.name, Ls0);
-	      true -> Ls0
-	  end,
-    Anno = case member(reuse_for_context, Vanno) of
-	       true -> [reuse_for_context|A#k.a];
-	       false -> A#k.a
-	   end,
-    Vdb1 = use_vars(union(A#k.us, Ls1), I, Vdb0),
-    Ts = [type_clause(Tc, Ls1, I+1, Ctxt, Vdb1) || Tc <- Kts],
-    #l{ke={select,literal(V, Ctxt),Ts},i=I,vdb=Vdb1,a=Anno};
-match(#k_guard{anno=A,clauses=Kcs}, Ls, I, Ctxt, Vdb0) ->
-    Vdb1 = use_vars(union(A#k.us, Ls), I, Vdb0),
-    Cs = [guard_clause(G, Ls, I+1, Ctxt, Vdb1) || G <- Kcs],
-    #l{ke={guard,Cs},i=I,vdb=Vdb1,a=A#k.a};
-match(Other, Ls, I, _Ctxt, Vdb0) ->
-    Vdb1 = use_vars(Ls, I, Vdb0),
-    {B,_,Vdb2} = body(Other, I+1, Vdb1),
-    #l{ke={block,B},i=I,vdb=Vdb2,a=[]}.
-
-type_clause(#k_type_clause{anno=A,type=T,values=Kvs}, Ls, I, Ctxt, Vdb0) ->
-    %%ok = io:format("life ~w: ~p~n", [?LINE,{T,Kvs}]),
-    Vdb1 = use_vars(union(A#k.us, Ls), I+1, Vdb0),
-    Vs = [val_clause(Vc, Ls, I+1, Ctxt, Vdb1) || Vc <- Kvs],
-    #l{ke={type_clause,type(T),Vs},i=I,vdb=Vdb1,a=A#k.a}.
-
-val_clause(#k_val_clause{anno=A,val=V,body=Kb}, Ls0, I, Ctxt0, Vdb0) ->
-    New = (get_kanno(V))#k.ns,
-    Bus = (get_kanno(Kb))#k.us,
-    %%ok = io:format("Ls0 = ~p, Used=~p\n  New=~p, Bus=~p\n", [Ls0,Used,New,Bus]),
-    Ls1 = union(intersection(New, Bus), Ls0),	%Lock for safety
-    Vdb1 = use_vars(union(A#k.us, Ls1), I+1, new_vars(New, I, Vdb0)),
-    Ctxt = case V of
-	       #k_binary{segs=#k_var{name=C0}} -> C0;
-	       _ -> Ctxt0
-	   end,
-    B = match(Kb, Ls1, I+1, Ctxt, Vdb1),
-    #l{ke={val_clause,literal(V, Ctxt),B},i=I,vdb=use_vars(Bus, I+1, Vdb1),a=A#k.a}.
-
-guard_clause(#k_guard_clause{anno=A,guard=Kg,body=Kb}, Ls, I, Ctxt, Vdb0) ->
-    Vdb1 = use_vars(union(A#k.us, Ls), I+2, Vdb0),
-    Gdb = vdb_sub(I+1, I+2, Vdb1),
-    G = protected(Kg, I+1, Gdb),
-    B = match(Kb, Ls, I+2, Ctxt, Vdb1),
-    #l{ke={guard_clause,G,B},
-       i=I,vdb=use_vars((get_kanno(Kg))#k.us, I+2, Vdb1),
-       a=A#k.a}.
-
-%% type(Ktype) -> Type.
-
-type(k_literal) -> literal;
-type(k_int) -> integer;
-%%type(k_char) -> integer;			%Hhhmmm???
-type(k_float) -> float;
-type(k_atom) -> atom;
-type(k_nil) -> nil;
-type(k_cons) -> cons;
-type(k_tuple) -> tuple;
-type(k_binary) -> binary;
-type(k_bin_seg) -> bin_seg;
-type(k_bin_int) -> bin_int;
-type(k_bin_end) -> bin_end;
-type(k_map) -> map.
-
-%% variable(Klit) -> Lit.
-%% var_list([Klit]) -> [Lit].
-
-variable(#k_var{name=N}) -> {var,N}.
-
-var_list(Ks) -> [variable(K) || K <- Ks].
-
-%% atomic(Klit) -> Lit.
-%% atomic_list([Klit]) -> [Lit].
-
-atomic(#k_literal{val=V}) -> {literal,V};
-atomic(#k_var{name=N}) -> {var,N};
-atomic(#k_int{val=I}) -> {integer,I};
-atomic(#k_float{val=F}) -> {float,F};
-atomic(#k_atom{val=N}) -> {atom,N};
-%%atomic(#k_char{val=C}) -> {char,C};
-atomic(#k_nil{}) -> nil.
-
-atomic_list(Ks) -> [atomic(K) || K <- Ks].
-
-%% literal(Klit) -> Lit.
-%% literal_list([Klit]) -> [Lit].
-
-literal(#k_var{name=N}, _) -> {var,N};
-literal(#k_literal{val=I}, _) -> {literal,I};
-literal(#k_int{val=I}, _) -> {integer,I};
-literal(#k_float{val=F}, _) -> {float,F};
-literal(#k_atom{val=N}, _) -> {atom,N};
-%%literal(#k_char{val=C}, _) -> {char,C};
-literal(#k_nil{}, _) -> nil;
-literal(#k_cons{hd=H,tl=T}, Ctxt) ->
-    {cons,[literal(H, Ctxt),literal(T, Ctxt)]};
-literal(#k_binary{segs=V}, Ctxt) ->
-    {binary,literal(V, Ctxt)};
-literal(#k_bin_seg{size=S,unit=U,type=T,flags=Fs,seg=Seg,next=[]}, Ctxt) ->
-    %% Only occurs in patterns.
-    {bin_seg,Ctxt,literal(S, Ctxt),U,T,Fs,[literal(Seg, Ctxt)]};
-literal(#k_bin_seg{size=S,unit=U,type=T,flags=Fs,seg=Seg,next=N}, Ctxt) ->
-    {bin_seg,Ctxt,literal(S, Ctxt),U,T,Fs,
-     [literal(Seg, Ctxt),literal(N, Ctxt)]};
-literal(#k_bin_int{size=S,unit=U,flags=Fs,val=Int,next=N}, Ctxt) ->
-    %% Only occurs in patterns.
-    {bin_int,Ctxt,literal(S, Ctxt),U,Fs,Int,
-     [literal(N, Ctxt)]};
-literal(#k_bin_end{}, Ctxt) ->
-    {bin_end,Ctxt};
-literal(#k_tuple{es=Es}, Ctxt) ->
-    {tuple,literal_list(Es, Ctxt)};
-literal(#k_map{op=Op,var=Var,es=Es0}, Ctxt) ->
-    {map,Op,literal(Var, Ctxt),literal_list(Es0, Ctxt)};
-literal(#k_map_pair{key=K,val=V}, Ctxt) ->
-    {map_pair,literal(K, Ctxt),literal(V, Ctxt)}.
-
-literal_list(Ks, Ctxt) ->
-    [literal(K, Ctxt) || K <- Ks].
-
-
-%% is_gc_bif(Name, Arity) -> true|false
-%%  Determines whether the BIF Name/Arity might do a GC.
-
-is_gc_bif(hd, 1) -> false;
-is_gc_bif(tl, 1) -> false;
-is_gc_bif(self, 0) -> false;
-is_gc_bif(node, 0) -> false;
-is_gc_bif(node, 1) -> false;
-is_gc_bif(element, 2) -> false;
-is_gc_bif(get, 1) -> false;
-is_gc_bif(tuple_size, 1) -> false;
-is_gc_bif(Bif, Arity) ->
-    not (erl_internal:bool_op(Bif, Arity) orelse
-	 erl_internal:new_type_test(Bif, Arity) orelse
-	 erl_internal:comp_op(Bif, Arity)).
-
-%% Keep track of life time for variables.
-%%
-%% init_vars([{var,VarName}]) -> Vdb.
-%% new_vars([VarName], I, Vdb) -> Vdb.
-%% use_vars([VarName], I, Vdb) -> Vdb.
-%% add_var(VarName, F, L, Vdb) -> Vdb.
-%%
-%% The list of variable names for new_vars/3 and use_vars/3
-%% must be sorted.
-
-init_vars(Vs) ->
-    vdb_new(Vs).
-
-new_vars([], _, Vdb) -> Vdb;
-new_vars([V], I, Vdb) -> vdb_store_new(V, {V,I,I}, Vdb);
-new_vars(Vs, I, Vdb) -> vdb_update_vars(Vs, Vdb, I).
-
-use_vars([], _, Vdb) ->
-    Vdb;
-use_vars([V], I, Vdb) ->
-    case vdb_find(V, Vdb) of
-	{V,F,L} when I > L -> vdb_update(V, {V,F,I}, Vdb);
-	{V,_,_} -> Vdb;
-	error -> vdb_store_new(V, {V,I,I}, Vdb)
-    end;
-use_vars(Vs, I, Vdb) -> vdb_update_vars(Vs, Vdb, I).
-
-add_var(V, F, L, Vdb) ->
-    vdb_store_new(V, {V,F,L}, Vdb).
-
-%% vdb
-
-vdb_new(Vs) ->
-    sort([{V,0,0} || {var,V} <- Vs]).
-
--type var() :: atom().
-
--spec vdb_find(var(), [vdb_entry()]) -> 'error' | vdb_entry().
-
-vdb_find(V, Vdb) ->
-    case lists:keyfind(V, 1, Vdb) of
-	false -> error;
-	Vd -> Vd
-    end.
-
-vdb_update(V, Update, [{V,_,_}|Vdb]) ->
-    [Update|Vdb];
-vdb_update(V, Update, [Vd|Vdb]) ->
-    [Vd|vdb_update(V, Update, Vdb)].
-
-vdb_store_new(V, New, [{V1,_,_}=Vd|Vdb]) when V > V1 ->
-    [Vd|vdb_store_new(V, New, Vdb)];
-vdb_store_new(V, New, [{V1,_,_}|_]=Vdb) when V < V1 ->
-    [New|Vdb];
-vdb_store_new(_, New, []) -> [New].
-
-vdb_update_vars([V|_]=Vs, [{V1,_,_}=Vd|Vdb], I) when V > V1 ->
-    [Vd|vdb_update_vars(Vs, Vdb, I)];
-vdb_update_vars([V|Vs], [{V1,_,_}|_]=Vdb, I) when V < V1 ->
-    %% New variable.
-    [{V,I,I}|vdb_update_vars(Vs, Vdb, I)];
-vdb_update_vars([V|Vs], [{_,F,L}=Vd|Vdb], I) ->
-    %% Existing variable.
-    if
-	I > L -> [{V,F,I}|vdb_update_vars(Vs, Vdb, I)];
-	true ->  [Vd|vdb_update_vars(Vs, Vdb, I)]
-    end;
-vdb_update_vars([V|Vs], [], I) ->
-    %% New variable.
-    [{V,I,I}|vdb_update_vars(Vs, [], I)];
-vdb_update_vars([], Vdb, _) -> Vdb.
-
-%% vdb_sub(Min, Max, Vdb) -> Vdb.
-%%  Extract variables which are used before and after Min.  Lock
-%%  variables alive after Max.
-
-vdb_sub(Min, Max, Vdb) ->
-    [ if L >= Max -> {V,F,locked};
-	 true -> Vd
-      end || {V,F,L}=Vd <- Vdb, F < Min, L >= Min ].
diff --git a/lib/compiler/src/v3_life.hrl b/lib/compiler/src/v3_life.hrl
deleted file mode 100644
index 5c76312067..0000000000
--- a/lib/compiler/src/v3_life.hrl
+++ /dev/null
@@ -1,29 +0,0 @@
-%%
-%% %CopyrightBegin%
-%% 
-%% Copyright Ericsson AB 1999-2016. All Rights Reserved.
-%% 
-%% Licensed under the Apache License, Version 2.0 (the "License");
-%% you may not use this file except in compliance with the License.
-%% You may obtain a copy of the License at
-%%
-%%     http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%% 
-%% %CopyrightEnd%
-%%
-%% This record contains variable life-time annotation for a
-%% kernel expression.  Added by v3_life, used by v3_codegen.
-
--type vdb_entry() :: {atom(),non_neg_integer(),non_neg_integer()}.
-
--record(l, {ke,					%Kernel expression
-	    i=0 :: non_neg_integer(),           %Op number
-	    vdb=[] :: [vdb_entry()],            %Variable database
-	    a=[] :: [term()]}).                 %Core annotation
-
diff --git a/lib/compiler/test/bs_match_SUITE.erl b/lib/compiler/test/bs_match_SUITE.erl
index 0ec05456ec..ad48d4c0b7 100644
--- a/lib/compiler/test/bs_match_SUITE.erl
+++ b/lib/compiler/test/bs_match_SUITE.erl
@@ -39,7 +39,7 @@
 	 match_string_opt/1,select_on_integer/1,
 	 map_and_binary/1,unsafe_branch_caching/1,
 	 bad_literals/1,good_literals/1,constant_propagation/1,
-	 parse_xml/1,get_payload/1]).
+	 parse_xml/1,get_payload/1,escape/1,num_slots_different/1]).
 
 -export([coverage_id/1,coverage_external_ignore/2]).
 
@@ -71,7 +71,7 @@ groups() ->
        match_string_opt,select_on_integer,
        map_and_binary,unsafe_branch_caching,
        bad_literals,good_literals,constant_propagation,parse_xml,
-       get_payload]}].
+       get_payload,escape,num_slots_different]}].
 
 
 init_per_suite(Config) ->
@@ -1524,6 +1524,55 @@ do_get_payload(ExtHdr) ->
     <<_:13,_:35>> = ExtHdr#ext_header.ext_hdr_opts,
     ExtHdrOptions.
 
+escape(_Config) ->
+    0 = escape(<<>>, 0),
+    1 = escape(<<128>>, 0),
+    2 = escape(<<128,255>>, 0),
+    42 = escape(<<42>>, 0),
+    50 = escape(<<42,8>>, 0),
+    ok.
+
+escape(<<Byte, Rest/bits>>, Pos) when Byte >= 127 ->
+    escape(Rest, Pos + 1);
+escape(<<Byte, Rest/bits>>, Pos) ->
+    escape(Rest, Pos + Byte);
+escape(<<_Rest/bits>>, Pos) ->
+    Pos.
+
+%% ERL-490
+num_slots_different(_Config) ->
+    Ts = [{<<"de">>, <<"default">>, <<"Remove">>, <<"a">>},
+          {<<"de">>, <<"default">>, <<"Remove from list">>, <<"a">>},
+          {<<"de">>, <<"default">>, <<"Remove from the list">>, <<"a">>},
+          {<<"de">>, <<"default">>, <<"Results">>, <<"Ergebnisse">>},
+          {<<"de">>, <<"default">>, <<"Reservatio">>, <<"a">>},
+          {<<"de">>, <<"navigation">>, <<"Results">>, <<"Ergebnisse">>},
+          {<<"de">>, <<"navigation">>, <<"Resources">>, <<"Ressourcen">>}],
+    _ = [{ok,Res} = lgettext(A, B, C) || {A,B,C,Res} <- Ts],
+
+    {'EXIT',_} = (catch lgettext(<<"d">>, <<"default">>, <<"Remove">>)),
+    {'EXIT',_} = (catch lgettext("", <<"default">>, <<"Remove">>)),
+    {'EXIT',_} = (catch lgettext(<<"de">>, <<"def">>, <<"Remove">>)),
+    {'EXIT',_} = (catch lgettext(<<"de">>, <<"default">>, <<"Res">>)),
+    ok.
+
+
+lgettext(<<"de">>, <<"default">>, <<"Remove">>) ->
+    {ok, <<"a">>};
+lgettext(<<"de">>, <<"default">>, <<"Remove from list">>) ->
+    {ok, <<"a">>};
+lgettext(<<"de">>, <<"default">>, <<"Remove from the list">>) ->
+    {ok, <<"a">>};
+lgettext(<<"de">>, <<"default">>, <<"Results">>) ->
+    {ok, <<"Ergebnisse">>};
+lgettext(<<"de">>, <<"default">>, <<"Reservatio">>) ->
+    {ok, <<"a">>};
+lgettext(<<"de">>, <<"navigation">>, <<"Results">>) ->
+    {ok, <<"Ergebnisse">>};
+lgettext(<<"de">>, <<"navigation">>, <<"Resources">>) ->
+    {ok, <<"Ressourcen">>}.
+
+
 check(F, R) ->
     R = F().
 
diff --git a/lib/compiler/test/compilation_SUITE_data/opt_crash.erl b/lib/compiler/test/compilation_SUITE_data/opt_crash.erl
index f1607cca68..c65ec31593 100644
--- a/lib/compiler/test/compilation_SUITE_data/opt_crash.erl
+++ b/lib/compiler/test/compilation_SUITE_data/opt_crash.erl
@@ -33,7 +33,7 @@ test() ->
                {userinfo,nil},
                fun() -> nil end},
             nil},
-         {'query',nil}}},
+         {query,nil}}},
 
    {absoluteURI,
       {scheme,_},
@@ -43,7 +43,7 @@ test() ->
                {userinfo,nil},
                HostportBefore},
             nil},
-         {'query',nil}}} = URI_Before,
+         {query,nil}}} = URI_Before,
 
    %% ... some funky code ommitted, not relevant ...
 
@@ -55,7 +55,7 @@ test() ->
                {userinfo,nil},
                HostportAfter},
             nil},
-         {'query',nil}}} = URI_Before,
+         {query,nil}}} = URI_Before,
    %% NOTE: I intended to write URI_After instead of URI_Before
    %% but the accident revealed that when you add the line below,
    %% it causes internal error in v3_codegen on compilation
diff --git a/lib/compiler/test/compile_SUITE.erl b/lib/compiler/test/compile_SUITE.erl
index aaa2005e73..e88a132d59 100644
--- a/lib/compiler/test/compile_SUITE.erl
+++ b/lib/compiler/test/compile_SUITE.erl
@@ -27,7 +27,7 @@
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2,
 	 app_test/1,appup_test/1,
-	 debug_info/4, custom_debug_info/1,
+	 debug_info/4, custom_debug_info/1, custom_compile_info/1,
 	 file_1/1, forms_2/1, module_mismatch/1, big_file/1, outdir/1,
 	 binary/1, makedep/1, cond_and_ifdef/1, listings/1, listings_big/1,
 	 other_output/1, kernel_listing/1, encrypted_abstr/1,
@@ -53,7 +53,8 @@ all() ->
      strict_record, utf8_atoms, utf8_functions, extra_chunks,
      cover, env, core_pp, core_roundtrip, asm, optimized_guards,
      sys_pre_attributes, dialyzer, warnings, pre_load_check,
-     env_compiler_options, custom_debug_info, bc_options].
+     env_compiler_options, custom_debug_info, bc_options,
+     custom_compile_info].
 
 groups() -> 
     [].
@@ -374,7 +375,6 @@ do_file_listings(DataDir, PrivDir, [File|Files]) ->
     do_listing(Simple, TargetDir, dcbsm, ".core_bsm"),
     do_listing(Simple, TargetDir, dsetel, ".dsetel"),
     do_listing(Simple, TargetDir, dkern, ".kernel"),
-    do_listing(Simple, TargetDir, dlife, ".life"),
     do_listing(Simple, TargetDir, dcg, ".codegen"),
     do_listing(Simple, TargetDir, dblk, ".block"),
     do_listing(Simple, TargetDir, dexcept, ".except"),
@@ -649,6 +649,23 @@ custom_debug_info(Config) when is_list(Config) ->
     {ok,{simple,[{debug_info,{debug_info_v1,?MODULE,error}}]}} =
 	beam_lib:chunks(ErrorBin, [debug_info]).
 
+custom_compile_info(Config) when is_list(Config) ->
+    Anno = erl_anno:new(1),
+    Forms = [{attribute,Anno,module,custom_compile_info}],
+    Opts = [binary,{compile_info,[{another,version}]}],
+
+    {ok,custom_compile_info,Bin} = compile:forms(Forms, Opts),
+    {ok,{custom_compile_info,[{compile_info,CompileInfo}]}} =
+	beam_lib:chunks(Bin, [compile_info]),
+    version = proplists:get_value(another, CompileInfo),
+    CompileOpts = proplists:get_value(options, CompileInfo),
+    undefined = proplists:get_value(compile_info, CompileOpts),
+
+    {ok,custom_compile_info,DetBin} = compile:forms(Forms, [deterministic|Opts]),
+    {ok,{custom_compile_info,[{compile_info,DetInfo}]}} =
+	beam_lib:chunks(DetBin, [compile_info]),
+    version = proplists:get_value(another, DetInfo).
+
 cover(Config) when is_list(Config) ->
     io:format("~p\n", [compile:options()]),
     ok.
diff --git a/lib/compiler/test/guard_SUITE.erl b/lib/compiler/test/guard_SUITE.erl
index ccb9b58225..d96cfdb7ac 100644
--- a/lib/compiler/test/guard_SUITE.erl
+++ b/lib/compiler/test/guard_SUITE.erl
@@ -1291,6 +1291,10 @@ rel_ops(Config) when is_list(Config) ->
     true = any_atom /= id(42),
     true = [] /= id(42),
 
+    %% Coverage of beam_utils:bif_to_test/3
+    Empty = id([]),
+    ?T(==, [], Empty),
+
     ok.
 
 -undef(TestOp).
diff --git a/lib/compiler/test/match_SUITE.erl b/lib/compiler/test/match_SUITE.erl
index 52b2da05f7..c31695be24 100644
--- a/lib/compiler/test/match_SUITE.erl
+++ b/lib/compiler/test/match_SUITE.erl
@@ -23,7 +23,7 @@
 	 init_per_group/2,end_per_group/2,
 	 pmatch/1,mixed/1,aliases/1,non_matching_aliases/1,
 	 match_in_call/1,untuplify/1,shortcut_boolean/1,letify_guard/1,
-	 selectify/1,underscore/1,match_map/1,map_vars_used/1,
+	 selectify/1,deselectify/1,underscore/1,match_map/1,map_vars_used/1,
 	 coverage/1,grab_bag/1,literal_binary/1]).
 	 
 -include_lib("common_test/include/ct.hrl").
@@ -38,7 +38,7 @@ groups() ->
     [{p,[parallel],
       [pmatch,mixed,aliases,non_matching_aliases,
        match_in_call,untuplify,
-       shortcut_boolean,letify_guard,selectify,
+       shortcut_boolean,letify_guard,selectify,deselectify,
        underscore,match_map,map_vars_used,coverage,
        grab_bag,literal_binary]}].
 
@@ -466,6 +466,66 @@ sel_same_value2(V) when V =:= 42; V =:= 43 ->
 sel_same_value2(_) ->
     error.
 
+%% Test deconstruction of select_val instructions in beam_peep into
+%% regular tests with just one possible value left. Hitting proper cases
+%% in beam_peep relies on unification of labels by beam_jump.
+
+deselectify(Config) when is_list(Config) ->
+    one_or_other = desel_tuple_arity({1}),
+    two = desel_tuple_arity({1,1}),
+    one_or_other = desel_tuple_arity({1,1,1}),
+
+    one_or_other = dsel_integer(1),
+    two = dsel_integer(2),
+    one_or_other = dsel_integer(3),
+
+    one_or_other = dsel_integer_typecheck(1),
+    two = dsel_integer_typecheck(2),
+    one_or_other = dsel_integer_typecheck(3),
+
+    one_or_other = dsel_atom(one),
+    two = dsel_atom(two),
+    one_or_other = dsel_atom(three),
+
+    one_or_other = dsel_atom_typecheck(one),
+    two = dsel_atom_typecheck(two),
+    one_or_other = dsel_atom_typecheck(three).
+
+desel_tuple_arity(Tuple) when is_tuple(Tuple) ->
+    case Tuple of
+        {_} -> one_or_other;
+        {_,_} -> two;
+        _ -> one_or_other
+    end.
+
+dsel_integer(Val) ->
+    case Val of
+        1 -> one_or_other;
+        2 -> two;
+        _ -> one_or_other
+    end.
+
+dsel_integer_typecheck(Val) when is_integer(Val) ->
+    case Val of
+        1 -> one_or_other;
+        2 -> two;
+        _ -> one_or_other
+    end.
+
+dsel_atom(Val) ->
+    case Val of
+        one -> one_or_other;
+        two -> two;
+        _ -> one_or_other
+    end.
+
+dsel_atom_typecheck(Val) when is_atom(Val) ->
+    case Val of
+        one -> one_or_other;
+        two -> two;
+        _ -> one_or_other
+    end.
+
 underscore(Config) when is_list(Config) ->
     case Config of
 	[] ->
diff --git a/lib/compiler/test/misc_SUITE.erl b/lib/compiler/test/misc_SUITE.erl
index ea4aaf40a9..b12bcbeeab 100644
--- a/lib/compiler/test/misc_SUITE.erl
+++ b/lib/compiler/test/misc_SUITE.erl
@@ -171,7 +171,7 @@ silly_coverage(Config) when is_list(Config) ->
     expect_error(fun() -> sys_core_dsetel:module(BadCoreErlang, []) end),
     expect_error(fun() -> v3_kernel:module(BadCoreErlang, []) end),
 
-    %% v3_life
+    %% v3_codegen
     BadKernel = {k_mdef,[],?MODULE,
 		 [{foo,0}],
 		 [],
@@ -179,11 +179,7 @@ silly_coverage(Config) when is_list(Config) ->
 		   {k,[],[],[]},
 		   f,0,[],
 		   seriously_bad_body}]},
-    expect_error(fun() -> v3_life:module(BadKernel, []) end),
-
-    %% v3_codegen
-    CodegenInput = {?MODULE,[{foo,0}],[],[{function,foo,0,[a|b],a,b,[]}]},
-    expect_error(fun() -> v3_codegen:module(CodegenInput, []) end),
+    expect_error(fun() -> v3_codegen:module(BadKernel, []) end),
 
     %% beam_a
     BeamAInput = {?MODULE,[{foo,0}],[],
diff --git a/lib/compiler/vsn.mk b/lib/compiler/vsn.mk
index 27ee5a3fb7..435a57aac2 100644
--- a/lib/compiler/vsn.mk
+++ b/lib/compiler/vsn.mk
@@ -1 +1 @@
-COMPILER_VSN = 7.1.1
+COMPILER_VSN = 7.1.3
diff --git a/lib/cosEvent/doc/src/Makefile b/lib/cosEvent/doc/src/Makefile
index ba505d6f7b..4fcb210e5a 100644
--- a/lib/cosEvent/doc/src/Makefile
+++ b/lib/cosEvent/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 1999-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 1999-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 #
@@ -49,31 +49,26 @@ XML_REF3_FILES = \
 	cosEventApp.xml
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml
+	part.xml
 XML_CHAPTER_FILES = \
 	ch_contents.xml \
 	ch_introduction.xml \
 	ch_event_service.xml \
-	notes.xml 
+	notes.xml
 
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
-TECHNICAL_DESCR_FILES = 
+TECHNICAL_DESCR_FILES =
 
 GIF_FILES = \
-	book.gif \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif \
 	e_s_components.gif \
-	e_s_models.gif 
+	e_s_models.gif
 
 
-PS_FILES = 
+PS_FILES =
 
 
 # ----------------------------------------------------
@@ -84,7 +79,7 @@ HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
 	$(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html)
 
 INFO_FILE = ../../info
-EXTRA_FILES = summary.html.src \
+EXTRA_FILES = \
 	$(DEFAULT_GIF_FILES) \
 	$(DEFAULT_HTML_FILES) \
 	$(XML_REF3_FILES:%.xml=$(HTMLDIR)/%.html) \
@@ -97,10 +92,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -130,11 +125,11 @@ gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 $(INDEX_TARGET): $(INDEX_SRC)
 	sed -e 's;%VSN%;$(VSN);' $(INDEX_SRC) > $(INDEX_TARGET)
 
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/cosEvent/doc/src/book.gif b/lib/cosEvent/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/cosEvent/doc/src/book.gif
+++ /dev/null
diff --git a/lib/cosEvent/doc/src/fascicules.xml b/lib/cosEvent/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/cosEvent/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/cosEvent/doc/src/notes.gif b/lib/cosEvent/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/cosEvent/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/cosEvent/doc/src/part_notes.xml b/lib/cosEvent/doc/src/part_notes.xml
deleted file mode 100644
index 37103a5592..0000000000
--- a/lib/cosEvent/doc/src/part_notes.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>1999</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>cosEvent Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date>1999-04-20</date>
-    <rev>1.0</rev>
-    <file>part_notes.xml</file>
-  </header>
-  <description>
-    <p>The cosEvent Application is an Erlang implementation of a CORBA Service
-      CosEvent.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/cosEvent/doc/src/ref_man.gif b/lib/cosEvent/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/cosEvent/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/cosEvent/doc/src/summary.html.src b/lib/cosEvent/doc/src/summary.html.src
deleted file mode 100644
index 6196223480..0000000000
--- a/lib/cosEvent/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-Orber OMG Event Service
\ No newline at end of file
diff --git a/lib/cosEvent/doc/src/user_guide.gif b/lib/cosEvent/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/cosEvent/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/cosEventDomain/doc/src/Makefile b/lib/cosEventDomain/doc/src/Makefile
index 0f18e43547..9faf65394d 100644
--- a/lib/cosEventDomain/doc/src/Makefile
+++ b/lib/cosEventDomain/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2001-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2001-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 #
@@ -44,31 +44,24 @@ XML_REF3_FILES = \
 	cosEventDomainApp.xml
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml
+	part.xml
 XML_CHAPTER_FILES = \
 	ch_contents.xml \
 	ch_introduction.xml \
 	ch_QoS.xml \
 	ch_event_domain_service.xml \
-	notes.xml 
+	notes.xml
 
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
-TECHNICAL_DESCR_FILES = 
+TECHNICAL_DESCR_FILES =
 
-GIF_FILES = \
-	book.gif \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif
-
-
-PS_FILES = 
+GIF_FILES =
 
+PS_FILES =
 
 # ----------------------------------------------------
 
@@ -78,7 +71,7 @@ HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
 	$(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html)
 
 INFO_FILE = ../../info
-EXTRA_FILES = summary.html.src \
+EXTRA_FILES = \
 	$(DEFAULT_GIF_FILES) \
 	$(DEFAULT_HTML_FILES) \
 	$(XML_REF3_FILES:%.xml=$(HTMLDIR)/%.html) \
@@ -91,10 +84,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -124,11 +117,11 @@ gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 $(INDEX_TARGET): $(INDEX_SRC)
 	sed -e 's;%VSN%;$(VSN);' $(INDEX_SRC) > $(INDEX_TARGET)
 
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/cosEventDomain/doc/src/book.gif b/lib/cosEventDomain/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/cosEventDomain/doc/src/book.gif
+++ /dev/null
diff --git a/lib/cosEventDomain/doc/src/fascicules.xml b/lib/cosEventDomain/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/cosEventDomain/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/cosEventDomain/doc/src/notes.gif b/lib/cosEventDomain/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/cosEventDomain/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/cosEventDomain/doc/src/part_notes.xml b/lib/cosEventDomain/doc/src/part_notes.xml
deleted file mode 100644
index af6864decf..0000000000
--- a/lib/cosEventDomain/doc/src/part_notes.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2001</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>cosEventDomain Release Notes</title>
-    <prepared>Niclas Eklund</prepared>
-    <docno></docno>
-    <date>2001-08-20</date>
-    <rev>1.0</rev>
-  </header>
-  <description>
-    <p>The cosEventDomain Application is an Erlang implementation of a CORBA Service
-      CosEventDomainAdmin.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/cosEventDomain/doc/src/ref_man.gif b/lib/cosEventDomain/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/cosEventDomain/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/cosEventDomain/doc/src/summary.html.src b/lib/cosEventDomain/doc/src/summary.html.src
deleted file mode 100644
index 922c956633..0000000000
--- a/lib/cosEventDomain/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-Orber OMG Event Domain Service
\ No newline at end of file
diff --git a/lib/cosEventDomain/doc/src/user_guide.gif b/lib/cosEventDomain/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/cosEventDomain/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/cosFileTransfer/doc/src/Makefile b/lib/cosFileTransfer/doc/src/Makefile
index 8d8c736f1b..fcaa88c1e2 100644
--- a/lib/cosFileTransfer/doc/src/Makefile
+++ b/lib/cosFileTransfer/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2000-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2000-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 #
@@ -46,8 +46,7 @@ XML_REF3_FILES = \
 	CosFileTransfer_FileIterator.xml
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml
+	part.xml
 XML_CHAPTER_FILES = \
 	ch_contents.xml \
 	ch_introduction.xml \
@@ -59,18 +58,14 @@ XML_CHAPTER_FILES = \
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
-TECHNICAL_DESCR_FILES = 
+TECHNICAL_DESCR_FILES =
 
 GIF_FILES = \
-	book.gif \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif \
 	CosFileTransfer.gif
 
-PS_FILES = 
+PS_FILES =
 
 # ----------------------------------------------------
 
@@ -83,7 +78,7 @@ HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
 
 INFO_FILE = ../../info
 
-EXTRA_FILES = summary.html.src \
+EXTRA_FILES = \
 	$(DEFAULT_GIF_FILES) \
 	$(DEFAULT_HTML_FILES) \
 	$(XML_REF3_FILES:%.xml=$(HTMLDIR)/%.html)
@@ -95,10 +90,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -127,11 +122,11 @@ gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 $(INDEX_TARGET): $(INDEX_SRC)
 	sed -e 's;%VSN%;$(VSN);' $(INDEX_SRC) > $(INDEX_TARGET)
 
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/cosFileTransfer/doc/src/book.gif b/lib/cosFileTransfer/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/cosFileTransfer/doc/src/book.gif
+++ /dev/null
diff --git a/lib/cosFileTransfer/doc/src/fascicules.xml b/lib/cosFileTransfer/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/cosFileTransfer/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/cosFileTransfer/doc/src/notes.gif b/lib/cosFileTransfer/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/cosFileTransfer/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/cosFileTransfer/doc/src/part_notes.xml b/lib/cosFileTransfer/doc/src/part_notes.xml
deleted file mode 100644
index d91de39b1f..0000000000
--- a/lib/cosFileTransfer/doc/src/part_notes.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2000</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>cosFileTransfer Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date>2000-08-24</date>
-    <rev>1.0</rev>
-  </header>
-  <description>
-    <p>The cosFileTransfer Application is an Erlang implementation of the OMG
-      CORBA FileTransfer Service.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/cosFileTransfer/doc/src/ref_man.gif b/lib/cosFileTransfer/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/cosFileTransfer/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/cosFileTransfer/doc/src/summary.html.src b/lib/cosFileTransfer/doc/src/summary.html.src
deleted file mode 100644
index 4c66e147e9..0000000000
--- a/lib/cosFileTransfer/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-Orber OMG File Transfer Service.
diff --git a/lib/cosFileTransfer/doc/src/user_guide.gif b/lib/cosFileTransfer/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/cosFileTransfer/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/cosNotification/doc/src/Makefile b/lib/cosNotification/doc/src/Makefile
index 6207290101..43ed8294c4 100644
--- a/lib/cosNotification/doc/src/Makefile
+++ b/lib/cosNotification/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2000-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2000-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 #
@@ -70,8 +70,7 @@ XML_REF3_FILES = \
 
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml
+	part.xml
 XML_CHAPTER_FILES = \
 	ch_contents.xml \
 	ch_introduction.xml \
@@ -85,19 +84,15 @@ XML_CHAPTER_FILES = \
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
-TECHNICAL_DESCR_FILES = 
+TECHNICAL_DESCR_FILES =
 
 GIF_FILES = \
-	book.gif \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif \
 	eventstructure.gif \
 	notificationFlow.gif
 
-PS_FILES = 
+PS_FILES =
 
 # ----------------------------------------------------
 
@@ -107,7 +102,7 @@ HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
 	$(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html)
 
 INFO_FILE = ../../info
-EXTRA_FILES = summary.html.src \
+EXTRA_FILES = \
 	$(DEFAULT_GIF_FILES) \
 	$(DEFAULT_HTML_FILES) \
 	$(XML_REF3_FILES:%.xml=$(HTMLDIR)/%.html) \
@@ -120,10 +115,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -152,11 +147,11 @@ gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 $(INDEX_TARGET): $(INDEX_SRC)
 	sed -e 's;%VSN%;$(VSN);' $(INDEX_SRC) > $(INDEX_TARGET)
 
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/cosNotification/doc/src/book.gif b/lib/cosNotification/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/cosNotification/doc/src/book.gif
+++ /dev/null
diff --git a/lib/cosNotification/doc/src/fascicules.xml b/lib/cosNotification/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/cosNotification/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/cosNotification/doc/src/notes.gif b/lib/cosNotification/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/cosNotification/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/cosNotification/doc/src/part_notes.xml b/lib/cosNotification/doc/src/part_notes.xml
deleted file mode 100644
index c999d885c1..0000000000
--- a/lib/cosNotification/doc/src/part_notes.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2000</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>cosNotification Release Notes</title>
-    <prepared>Niclas Eklund</prepared>
-    <docno></docno>
-    <date>2000-01-31</date>
-    <rev>1.0</rev>
-  </header>
-  <description>
-    <p>The cosNotification Application is an Erlang implementation of the OMG
-      CORBA Notification Service.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/cosNotification/doc/src/ref_man.gif b/lib/cosNotification/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/cosNotification/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/cosNotification/doc/src/summary.html.src b/lib/cosNotification/doc/src/summary.html.src
deleted file mode 100644
index 92ade4f9cd..0000000000
--- a/lib/cosNotification/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-Orber OMG Notification Service
\ No newline at end of file
diff --git a/lib/cosNotification/doc/src/user_guide.gif b/lib/cosNotification/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/cosNotification/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/cosProperty/doc/src/Makefile b/lib/cosProperty/doc/src/Makefile
index 6b210500f9..ec11ca1735 100644
--- a/lib/cosProperty/doc/src/Makefile
+++ b/lib/cosProperty/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2000-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2000-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 #
@@ -46,11 +46,10 @@ XML_REF3_FILES = \
 	CosPropertyService_PropertiesIterator.xml \
 	CosPropertyService_PropertyNamesIterator.xml
 
-XML_REF6_FILES = 
+XML_REF6_FILES =
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml
+	part.xml
 XML_CHAPTER_FILES = \
 	ch_contents.xml \
 	ch_introduction.xml \
@@ -61,17 +60,13 @@ XML_CHAPTER_FILES = \
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
-TECHNICAL_DESCR_FILES = 
+TECHNICAL_DESCR_FILES =
 
-GIF_FILES = \
-	book.gif \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif
+GIF_FILES =
 
-PS_FILES = 
+PS_FILES =
 
 # ----------------------------------------------------
 
@@ -82,7 +77,7 @@ HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
 
 INFO_FILE = ../../info
 
-EXTRA_FILES = summary.html.src \
+EXTRA_FILES = \
 	$(DEFAULT_GIF_FILES) \
 	$(DEFAULT_HTML_FILES) \
 	$(XML_REF3_FILES:%.xml=$(HTMLDIR)/%.html) \
@@ -97,10 +92,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -129,11 +124,11 @@ gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 $(INDEX_TARGET): $(INDEX_SRC)
 	sed -e 's;%VSN%;$(VSN);' $(INDEX_SRC) > $(INDEX_TARGET)
 
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/cosProperty/doc/src/book.gif b/lib/cosProperty/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/cosProperty/doc/src/book.gif
+++ /dev/null
diff --git a/lib/cosProperty/doc/src/fascicules.xml b/lib/cosProperty/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/cosProperty/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/cosProperty/doc/src/notes.gif b/lib/cosProperty/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/cosProperty/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/cosProperty/doc/src/part_notes.xml b/lib/cosProperty/doc/src/part_notes.xml
deleted file mode 100644
index bb3221e41c..0000000000
--- a/lib/cosProperty/doc/src/part_notes.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2000</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>cosProperty Release Notes</title>
-    <prepared>Niclas Eklund</prepared>
-    <docno></docno>
-    <date>2000-06-07</date>
-    <rev>1.0</rev>
-  </header>
-  <description>
-    <p>The cosProperty Application is an Erlang implementation of the OMG
-      CORBA Property Service.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/cosProperty/doc/src/ref_man.gif b/lib/cosProperty/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/cosProperty/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/cosProperty/doc/src/summary.html.src b/lib/cosProperty/doc/src/summary.html.src
deleted file mode 100644
index 87370c659c..0000000000
--- a/lib/cosProperty/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-Orber OMG Property Service.
\ No newline at end of file
diff --git a/lib/cosProperty/doc/src/user_guide.gif b/lib/cosProperty/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/cosProperty/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/cosTime/doc/src/Makefile b/lib/cosTime/doc/src/Makefile
index f3fdafa58a..6886d2812c 100644
--- a/lib/cosTime/doc/src/Makefile
+++ b/lib/cosTime/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2000-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2000-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 #
@@ -46,8 +46,7 @@ XML_REF3_FILES = \
 	CosTimerEvent_TimerEventService.xml \
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml
+	part.xml
 XML_CHAPTER_FILES = \
 	ch_contents.xml \
 	ch_introduction.xml \
@@ -58,17 +57,13 @@ XML_CHAPTER_FILES = \
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
-TECHNICAL_DESCR_FILES = 
+TECHNICAL_DESCR_FILES =
 
-GIF_FILES = \
-	book.gif \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif
+GIF_FILES =
 
-PS_FILES = 
+PS_FILES =
 
 # ----------------------------------------------------
 
@@ -78,7 +73,7 @@ HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
 	$(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html)
 
 INFO_FILE = ../../info
-EXTRA_FILES = summary.html.src \
+EXTRA_FILES = \
 	$(DEFAULT_GIF_FILES) \
 	$(DEFAULT_HTML_FILES) \
 	$(XML_REF3_FILES:%.xml=$(HTMLDIR)/%.html) \
@@ -91,10 +86,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -123,11 +118,11 @@ gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 $(INDEX_TARGET): $(INDEX_SRC)
 	sed -e 's;%VSN%;$(VSN);' $(INDEX_SRC) > $(INDEX_TARGET)
 
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/cosTime/doc/src/book.gif b/lib/cosTime/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/cosTime/doc/src/book.gif
+++ /dev/null
diff --git a/lib/cosTime/doc/src/fascicules.xml b/lib/cosTime/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/cosTime/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/cosTime/doc/src/notes.gif b/lib/cosTime/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/cosTime/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/cosTime/doc/src/part_notes.xml b/lib/cosTime/doc/src/part_notes.xml
deleted file mode 100644
index dbc9185038..0000000000
--- a/lib/cosTime/doc/src/part_notes.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2000</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>cosTime Release Notes</title>
-    <prepared>Niclas Eklund</prepared>
-    <docno></docno>
-    <date>2000-01-31</date>
-    <rev>1.0</rev>
-  </header>
-  <description>
-    <p>The cosTime Application is an Erlang implementation of the OMG
-      CORBA Time and TimerEvent Services.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/cosTime/doc/src/ref_man.gif b/lib/cosTime/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/cosTime/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/cosTime/doc/src/summary.html.src b/lib/cosTime/doc/src/summary.html.src
deleted file mode 100644
index 78e383d275..0000000000
--- a/lib/cosTime/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-Orber OMG Timer and TimerEvent Services.
diff --git a/lib/cosTime/doc/src/user_guide.gif b/lib/cosTime/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/cosTime/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/cosTransactions/doc/src/Makefile b/lib/cosTransactions/doc/src/Makefile
index b70d7647b1..3c054593a9 100644
--- a/lib/cosTransactions/doc/src/Makefile
+++ b/lib/cosTransactions/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 1999-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 1999-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 #
@@ -49,8 +49,7 @@ XML_REF3_FILES = \
 #	CosTransactions_Synchronization.xml
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml
+	part.xml
 XML_CHAPTER_FILES = \
 	ch_contents.xml \
 	ch_introduction.xml \
@@ -62,17 +61,13 @@ XML_CHAPTER_FILES = \
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
-TECHNICAL_DESCR_FILES = 
+TECHNICAL_DESCR_FILES =
 
-GIF_FILES = \
-	book.gif \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif
+GIF_FILES =
 
-PS_FILES = 
+PS_FILES =
 
 # ----------------------------------------------------
 
@@ -82,7 +77,7 @@ HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
 	$(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html)
 
 INFO_FILE = ../../info
-EXTRA_FILES = summary.html.src \
+EXTRA_FILES = \
 	$(DEFAULT_GIF_FILES) \
 	$(DEFAULT_HTML_FILES) \
 	$(XML_REF3_FILES:%.xml=$(HTMLDIR)/%.html) \
@@ -95,10 +90,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -127,11 +122,11 @@ gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 $(INDEX_TARGET): $(INDEX_SRC)
 	sed -e 's;%VSN%;$(VSN);' $(INDEX_SRC) > $(INDEX_TARGET)
 
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/cosTransactions/doc/src/book.gif b/lib/cosTransactions/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/cosTransactions/doc/src/book.gif
+++ /dev/null
diff --git a/lib/cosTransactions/doc/src/fascicules.xml b/lib/cosTransactions/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/cosTransactions/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/cosTransactions/doc/src/notes.gif b/lib/cosTransactions/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/cosTransactions/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/cosTransactions/doc/src/part_notes.xml b/lib/cosTransactions/doc/src/part_notes.xml
deleted file mode 100644
index 48cc04aa4c..0000000000
--- a/lib/cosTransactions/doc/src/part_notes.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>1999</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>cosTransactions Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date>1999-04-14</date>
-    <rev>2.0</rev>
-  </header>
-  <description>
-    <p>The cosTransactions Application is an Erlang implementation of the OMG
-      CORBA Transaction Service.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/cosTransactions/doc/src/ref_man.gif b/lib/cosTransactions/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/cosTransactions/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/cosTransactions/doc/src/summary.html.src b/lib/cosTransactions/doc/src/summary.html.src
deleted file mode 100644
index 8fb7d6ea20..0000000000
--- a/lib/cosTransactions/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-Orber OMG Transaction Service
\ No newline at end of file
diff --git a/lib/cosTransactions/doc/src/user_guide.gif b/lib/cosTransactions/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/cosTransactions/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c
index 1d9c1e0f88..53fe233790 100644
--- a/lib/crypto/c_src/crypto.c
+++ b/lib/crypto/c_src/crypto.c
@@ -442,8 +442,7 @@ static ERL_NIF_TERM rc4_set_key(ErlNifEnv* env, int argc, const ERL_NIF_TERM arg
 static ERL_NIF_TERM rc4_encrypt_with_state(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 static ERL_NIF_TERM pkey_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 static ERL_NIF_TERM pkey_verify_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
-static ERL_NIF_TERM rsa_public_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
-static ERL_NIF_TERM rsa_private_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
+static ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 static ERL_NIF_TERM rsa_generate_key_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 static ERL_NIF_TERM dh_generate_parameters_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
 static ERL_NIF_TERM dh_check(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
@@ -511,8 +510,7 @@ static ErlNifFunc nif_funcs[] = {
     {"rc4_encrypt_with_state", 2, rc4_encrypt_with_state},
     {"pkey_sign_nif", 5, pkey_sign_nif},
     {"pkey_verify_nif", 6, pkey_verify_nif},
-    {"rsa_public_crypt", 4, rsa_public_crypt},
-    {"rsa_private_crypt", 4, rsa_private_crypt},
+    {"pkey_crypt_nif", 6, pkey_crypt_nif},
     {"rsa_generate_key_nif", 2, rsa_generate_key_nif},
     {"dh_generate_parameters_nif", 2, dh_generate_parameters_nif},
     {"dh_check", 1, dh_check},
@@ -549,6 +547,7 @@ static ERL_NIF_TERM atom_error;
 static ERL_NIF_TERM atom_rsa_pkcs1_padding;
 static ERL_NIF_TERM atom_rsa_pkcs1_oaep_padding;
 static ERL_NIF_TERM atom_rsa_no_padding;
+static ERL_NIF_TERM atom_signature_md;
 static ERL_NIF_TERM atom_undefined;
 
 static ERL_NIF_TERM atom_ok;
@@ -589,8 +588,12 @@ static ERL_NIF_TERM atom_rsa;
 static ERL_NIF_TERM atom_dss;
 static ERL_NIF_TERM atom_ecdsa;
 static ERL_NIF_TERM atom_rsa_mgf1_md;
+static ERL_NIF_TERM atom_rsa_oaep_label;
+static ERL_NIF_TERM atom_rsa_oaep_md;
+static ERL_NIF_TERM atom_rsa_pad; /* backwards compatibility */
 static ERL_NIF_TERM atom_rsa_padding;
 static ERL_NIF_TERM atom_rsa_pkcs1_pss_padding;
+static ERL_NIF_TERM atom_rsa_sslv23_padding;
 static ERL_NIF_TERM atom_rsa_x931_padding;
 static ERL_NIF_TERM atom_rsa_pss_saltlen;
 static ERL_NIF_TERM atom_sha224;
@@ -895,6 +898,7 @@ static int initialize(ErlNifEnv* env, ERL_NIF_TERM load_info)
     atom_rsa_pkcs1_padding = enif_make_atom(env,"rsa_pkcs1_padding");
     atom_rsa_pkcs1_oaep_padding = enif_make_atom(env,"rsa_pkcs1_oaep_padding");
     atom_rsa_no_padding = enif_make_atom(env,"rsa_no_padding");
+    atom_signature_md = enif_make_atom(env,"signature_md");
     atom_undefined = enif_make_atom(env,"undefined");
     atom_ok = enif_make_atom(env,"ok");
     atom_not_prime = enif_make_atom(env,"not_prime");
@@ -933,8 +937,12 @@ static int initialize(ErlNifEnv* env, ERL_NIF_TERM load_info)
     atom_dss = enif_make_atom(env,"dss");
     atom_ecdsa = enif_make_atom(env,"ecdsa");
     atom_rsa_mgf1_md = enif_make_atom(env,"rsa_mgf1_md");
+    atom_rsa_oaep_label = enif_make_atom(env,"rsa_oaep_label");
+    atom_rsa_oaep_md = enif_make_atom(env,"rsa_oaep_md");
+    atom_rsa_pad = enif_make_atom(env,"rsa_pad"); /* backwards compatibility */
     atom_rsa_padding = enif_make_atom(env,"rsa_padding");
     atom_rsa_pkcs1_pss_padding = enif_make_atom(env,"rsa_pkcs1_pss_padding");
+    atom_rsa_sslv23_padding = enif_make_atom(env,"rsa_sslv23_padding");
     atom_rsa_x931_padding = enif_make_atom(env,"rsa_x931_padding");
     atom_rsa_pss_saltlen = enif_make_atom(env,"rsa_pss_saltlen");
     atom_sha224 = enif_make_atom(env,"sha224");
@@ -2722,118 +2730,6 @@ static int get_dss_public_key(ErlNifEnv* env, ERL_NIF_TERM key, DSA *dsa)
     return 1;
 }
 
-static int rsa_pad(ERL_NIF_TERM term, int* padding)
-{
-    if (term == atom_rsa_pkcs1_padding) {
-	*padding = RSA_PKCS1_PADDING;
-    }
-    else if (term == atom_rsa_pkcs1_oaep_padding) {
-	*padding = RSA_PKCS1_OAEP_PADDING;
-    }
-    else if (term == atom_rsa_no_padding) {
-	*padding = RSA_NO_PADDING;
-    }
-    else {
-	return 0;
-    }
-    return 1;
-}
-
-static ERL_NIF_TERM rsa_public_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
-{/* (Data, PublKey=[E,N], Padding, IsEncrypt) */
-    ErlNifBinary data_bin, ret_bin;
-    ERL_NIF_TERM head, tail;
-    int padding, i;
-    RSA* rsa;
-    BIGNUM *e, *n;
-
-    rsa = RSA_new();
-
-    if (!enif_inspect_binary(env, argv[0], &data_bin)
-	|| !enif_get_list_cell(env, argv[1], &head, &tail)
-	|| !get_bn_from_bin(env, head, &e)
-	|| !enif_get_list_cell(env, tail, &head, &tail)
-	|| !get_bn_from_bin(env, head, &n)
-	|| !enif_is_empty_list(env,tail)
-	|| !rsa_pad(argv[2], &padding)) {
-
-	RSA_free(rsa);
-	return enif_make_badarg(env);
-    }
-    (void) RSA_set0_key(rsa, n, e, NULL);
-
-    enif_alloc_binary(RSA_size(rsa), &ret_bin); 
-
-    if (argv[3] == atom_true) {
-	ERL_VALGRIND_ASSERT_MEM_DEFINED(data_bin.data,data_bin.size);
-	i = RSA_public_encrypt(data_bin.size, data_bin.data,
-			       ret_bin.data, rsa, padding);
-	if (i > 0) {
-	    ERL_VALGRIND_MAKE_MEM_DEFINED(ret_bin.data, i);
-	}
-    }
-    else {
-	i = RSA_public_decrypt(data_bin.size, data_bin.data,
-			       ret_bin.data, rsa, padding);    
-	if (i > 0) {
-	    ERL_VALGRIND_MAKE_MEM_DEFINED(ret_bin.data, i);
-	    enif_realloc_binary(&ret_bin, i);
-	}
-    }
-    RSA_free(rsa);
-    if (i > 0) {
-	return enif_make_binary(env,&ret_bin);
-    }
-    else {
-	enif_release_binary(&ret_bin);
-	return atom_error;
-    }
-}
-
-static ERL_NIF_TERM rsa_private_crypt(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
-{/* (Data, Key=[E,N,D]|[E,N,D,P1,P2,E1,E2,C], Padding, IsEncrypt) */
-    ErlNifBinary data_bin, ret_bin;
-    int padding, i;
-    RSA* rsa;
-
-    rsa = RSA_new();
-
-    if (!enif_inspect_binary(env, argv[0], &data_bin)
-	|| !get_rsa_private_key(env, argv[1], rsa)
-	|| !rsa_pad(argv[2], &padding)) {
-
-	RSA_free(rsa);
-	return enif_make_badarg(env);
-    }
-
-    enif_alloc_binary(RSA_size(rsa), &ret_bin); 
-
-    if (argv[3] == atom_true) {
-	ERL_VALGRIND_ASSERT_MEM_DEFINED(data_bin.data,data_bin.size);
-	i = RSA_private_encrypt(data_bin.size, data_bin.data,
-				ret_bin.data, rsa, padding);
-	if (i > 0) {
-	    ERL_VALGRIND_MAKE_MEM_DEFINED(ret_bin.data, i);
-	}
-    }
-    else {
-	i = RSA_private_decrypt(data_bin.size, data_bin.data,
-				ret_bin.data, rsa, padding);       
-	if (i > 0) {
-	    ERL_VALGRIND_MAKE_MEM_DEFINED(ret_bin.data, i);
-	    enif_realloc_binary(&ret_bin, i);
-	}
-    }
-    RSA_free(rsa);
-    if (i > 0) {
-	return enif_make_binary(env,&ret_bin);
-    }
-    else {
-	enif_release_binary(&ret_bin);
-	return atom_error;
-    }
-}
-
 /* Creates a term which can be parsed by get_rsa_private_key(). This is a list of plain integer binaries (not mpints). */
 static ERL_NIF_TERM put_rsa_private_key(ErlNifEnv* env, const RSA *rsa)
 {
@@ -3906,7 +3802,8 @@ static int get_pkey_sign_options(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF
     return PKEY_OK;
 }
 
-static int get_pkey_sign_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM key, EVP_PKEY **pkey)
+
+static int get_pkey_private_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM key, EVP_PKEY **pkey)
 {
     if (algorithm == atom_rsa) {
 	RSA *rsa = RSA_new();
@@ -3965,6 +3862,67 @@ static int get_pkey_sign_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TER
     return PKEY_OK;
 }
 
+
+static int get_pkey_public_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM key,
+			       EVP_PKEY **pkey)
+{
+    if (algorithm == atom_rsa) {
+	RSA *rsa = RSA_new();
+
+	if (!get_rsa_public_key(env, key, rsa)) {
+	    RSA_free(rsa);
+	    return PKEY_BADARG;
+	}
+
+	*pkey = EVP_PKEY_new();
+	if (!EVP_PKEY_assign_RSA(*pkey, rsa)) {
+	    EVP_PKEY_free(*pkey);
+	    RSA_free(rsa);
+	    return PKEY_BADARG;
+	}
+    } else if (algorithm == atom_ecdsa) {
+#if defined(HAVE_EC)
+	EC_KEY *ec = NULL;
+	const ERL_NIF_TERM *tpl_terms;
+	int tpl_arity;
+
+	if (enif_get_tuple(env, key, &tpl_arity, &tpl_terms) && tpl_arity == 2
+	    && enif_is_tuple(env, tpl_terms[0]) && enif_is_binary(env, tpl_terms[1])
+	    && get_ec_key(env, tpl_terms[0], atom_undefined, tpl_terms[1], &ec)) {
+
+	    *pkey = EVP_PKEY_new();
+	    if (!EVP_PKEY_assign_EC_KEY(*pkey, ec)) {
+		EVP_PKEY_free(*pkey);
+		EC_KEY_free(ec);
+		return PKEY_BADARG;
+	    }
+	} else {
+	    return PKEY_BADARG;
+	}
+#else
+	return PKEY_NOTSUP;
+#endif
+    } else if (algorithm == atom_dss) {
+	DSA *dsa = DSA_new();
+
+	if (!get_dss_public_key(env, key, dsa)) {
+	    DSA_free(dsa);
+	    return PKEY_BADARG;
+	}
+
+	*pkey = EVP_PKEY_new();
+	if (!EVP_PKEY_assign_DSA(*pkey, dsa)) {
+	    EVP_PKEY_free(*pkey);
+	    DSA_free(dsa);
+	    return PKEY_BADARG;
+	}
+    } else {
+	return PKEY_BADARG;
+    }
+
+    return PKEY_OK;
+}
+
 static ERL_NIF_TERM pkey_sign_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 {/* (Algorithm, Type, Data|{digest,Digest}, Key, Options) */
     int i;
@@ -4002,7 +3960,7 @@ printf("\r\n");
 	    return enif_make_badarg(env);
     }
 
-    if (get_pkey_sign_key(env, argv[0], argv[3], &pkey) != PKEY_OK) {
+    if (get_pkey_private_key(env, argv[0], argv[3], &pkey) != PKEY_OK) {
 	return enif_make_badarg(env);
     }
 
@@ -4097,66 +4055,6 @@ printf("\r\n");
 }
 
 
-static int get_pkey_verify_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM key,
-			       EVP_PKEY **pkey)
-{
-    if (algorithm == atom_rsa) {
-	RSA *rsa = RSA_new();
-
-	if (!get_rsa_public_key(env, key, rsa)) {
-	    RSA_free(rsa);
-	    return PKEY_BADARG;
-	}
-
-	*pkey = EVP_PKEY_new();
-	if (!EVP_PKEY_assign_RSA(*pkey, rsa)) {
-	    EVP_PKEY_free(*pkey);
-	    RSA_free(rsa);
-	    return PKEY_BADARG;
-	}
-    } else if (algorithm == atom_ecdsa) {
-#if defined(HAVE_EC)
-	EC_KEY *ec = NULL;
-	const ERL_NIF_TERM *tpl_terms;
-	int tpl_arity;
-
-	if (enif_get_tuple(env, key, &tpl_arity, &tpl_terms) && tpl_arity == 2
-	    && enif_is_tuple(env, tpl_terms[0]) && enif_is_binary(env, tpl_terms[1])
-	    && get_ec_key(env, tpl_terms[0], atom_undefined, tpl_terms[1], &ec)) {
-
-	    *pkey = EVP_PKEY_new();
-	    if (!EVP_PKEY_assign_EC_KEY(*pkey, ec)) {
-		EVP_PKEY_free(*pkey);
-		EC_KEY_free(ec);
-		return PKEY_BADARG;
-	    }
-	} else {
-	    return PKEY_BADARG;
-	}
-#else
-	return PKEY_NOTSUP;
-#endif
-    } else if (algorithm == atom_dss) {
-	DSA *dsa = DSA_new();
-
-	if (!get_dss_public_key(env, key, dsa)) {
-	    DSA_free(dsa);
-	    return PKEY_BADARG;
-	}
-
-	*pkey = EVP_PKEY_new();
-	if (!EVP_PKEY_assign_DSA(*pkey, dsa)) {
-	    EVP_PKEY_free(*pkey);
-	    DSA_free(dsa);
-	    return PKEY_BADARG;
-	}
-    } else {
-	return PKEY_BADARG;
-    }
-
-    return PKEY_OK;
-}
-
 static ERL_NIF_TERM pkey_verify_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
 {/* (Algorithm, Type, Data|{digest,Digest}, Signature, Key, Options) */
     int i;
@@ -4192,7 +4090,7 @@ static ERL_NIF_TERM pkey_verify_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM
 	    return enif_make_badarg(env);
     }
 
-    if (get_pkey_verify_key(env, argv[0], argv[4], &pkey) != PKEY_OK) {
+    if (get_pkey_public_key(env, argv[0], argv[4], &pkey) != PKEY_OK) {
 	return enif_make_badarg(env);
     }
 
@@ -4269,6 +4167,382 @@ static ERL_NIF_TERM pkey_verify_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM
 }
 
 
+/*--------------------------------*/
+
+static int get_pkey_crypt_options(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_TERM options,
+				  PKeyCryptOptions *opt)
+{
+    ERL_NIF_TERM head, tail;
+    const ERL_NIF_TERM *tpl_terms;
+    int tpl_arity;
+    const EVP_MD *opt_md;
+    int i;
+
+    if (!enif_is_list(env, options)) {
+	return PKEY_BADARG;
+    }
+
+    /* defaults */
+    if (algorithm == atom_rsa) {
+	opt->rsa_mgf1_md = NULL;
+	opt->rsa_oaep_label.data = NULL;
+	opt->rsa_oaep_label.size = 0;
+	opt->rsa_oaep_md = NULL;
+	opt->rsa_padding = RSA_PKCS1_PADDING;
+	opt->signature_md = NULL;
+    }
+
+    if (enif_is_empty_list(env, options)) {
+	return PKEY_OK;
+    }
+
+    if (algorithm == atom_rsa) {
+	tail = options;
+	while (enif_get_list_cell(env, tail, &head, &tail)) {
+	    if (enif_get_tuple(env, head, &tpl_arity, &tpl_terms) && tpl_arity == 2) {
+		if (tpl_terms[0] == atom_rsa_padding
+                    || tpl_terms[0] == atom_rsa_pad /* Compatibility */
+                    ) {
+		    if (tpl_terms[1] == atom_rsa_pkcs1_padding) {
+			opt->rsa_padding = RSA_PKCS1_PADDING;
+		    } else if (tpl_terms[1] == atom_rsa_pkcs1_oaep_padding) {
+			opt->rsa_padding = RSA_PKCS1_OAEP_PADDING;
+		    } else if (tpl_terms[1] == atom_rsa_sslv23_padding) {
+			opt->rsa_padding = RSA_SSLV23_PADDING;
+		    } else if (tpl_terms[1] == atom_rsa_x931_padding) {
+			opt->rsa_padding = RSA_X931_PADDING;
+		    } else if (tpl_terms[1] == atom_rsa_no_padding) {
+			opt->rsa_padding = RSA_NO_PADDING;
+		    } else {
+			return PKEY_BADARG;
+		    }
+		} else if (tpl_terms[0] == atom_signature_md && enif_is_atom(env, tpl_terms[1])) {
+		    i = get_pkey_digest_type(env, algorithm, tpl_terms[1], &opt_md);
+		    if (i != PKEY_OK) {
+			return i;
+		    }
+		    opt->signature_md = opt_md;
+		} else if (tpl_terms[0] == atom_rsa_mgf1_md && enif_is_atom(env, tpl_terms[1])) {
+#ifndef HAVE_RSA_OAEP_MD
+		    if (tpl_terms[1] != atom_sha)
+			return PKEY_NOTSUP;
+#endif
+		    i = get_pkey_digest_type(env, algorithm, tpl_terms[1], &opt_md);
+		    if (i != PKEY_OK) {
+			return i;
+		    }
+		    opt->rsa_mgf1_md = opt_md;
+		} else if (tpl_terms[0] == atom_rsa_oaep_label
+			   && enif_inspect_binary(env, tpl_terms[1], &(opt->rsa_oaep_label))) {
+#ifdef HAVE_RSA_OAEP_MD
+		    continue;
+#else
+		    return PKEY_NOTSUP;
+#endif
+		} else if (tpl_terms[0] == atom_rsa_oaep_md && enif_is_atom(env, tpl_terms[1])) {
+#ifndef HAVE_RSA_OAEP_MD
+		    if (tpl_terms[1] != atom_sha)
+			return PKEY_NOTSUP;
+#endif
+		    i = get_pkey_digest_type(env, algorithm, tpl_terms[1], &opt_md);
+		    if (i != PKEY_OK) {
+			return i;
+		    }
+		    opt->rsa_oaep_md = opt_md;
+		} else {
+		    return PKEY_BADARG;
+		}
+	    } else {
+		return PKEY_BADARG;
+	    }
+	}
+    } else {
+	return PKEY_BADARG;
+    }
+
+    return PKEY_OK;
+}
+
+static ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
+{/* (Algorithm, Data, PublKey=[E,N]|[E,N,D]|[E,N,D,P1,P2,E1,E2,C], Options, IsPrivate, IsEncrypt) */
+    int i;
+    EVP_PKEY *pkey;
+#ifdef HAS_EVP_PKEY_CTX
+    EVP_PKEY_CTX *ctx;
+#else
+    RSA *rsa;
+#endif
+    PKeyCryptOptions crypt_opt;
+    ErlNifBinary in_bin, out_bin, tmp_bin;
+    size_t outlen, tmplen;
+    int is_private = (argv[4] == atom_true),
+        is_encrypt = (argv[5] == atom_true);
+    int algo_init = 0;
+
+/* char algo[1024]; */
+   
+    if (!enif_inspect_binary(env, argv[1], &in_bin)) {
+	return enif_make_badarg(env);
+    }
+
+    i = get_pkey_crypt_options(env, argv[0], argv[3], &crypt_opt);
+    if (i != PKEY_OK) {
+	if (i == PKEY_NOTSUP)
+	    return atom_notsup;
+	else
+	    return enif_make_badarg(env);
+    }
+
+    if (is_private) {
+	if (get_pkey_private_key(env, argv[0], argv[2], &pkey) != PKEY_OK) {
+	    return enif_make_badarg(env);
+	}
+    } else {
+	if (get_pkey_public_key(env, argv[0], argv[2], &pkey) != PKEY_OK) {
+	    return enif_make_badarg(env);
+	}
+    }
+
+    out_bin.data = NULL;
+    out_bin.size = 0;
+    tmp_bin.data = NULL;
+    tmp_bin.size = 0;
+
+#ifdef HAS_EVP_PKEY_CTX
+    ctx = EVP_PKEY_CTX_new(pkey, NULL);
+    if (!ctx) goto badarg;
+
+/* enif_get_atom(env,argv[0],algo,1024,ERL_NIF_LATIN1);  */
+
+    if (is_private) {
+        if (is_encrypt) {
+            /* private encrypt */
+            if ((algo_init=EVP_PKEY_sign_init(ctx)) <= 0) {
+                /* fprintf(stderr,"BADARG %s private encrypt algo_init=%d %s:%d\r\n", algo, algo_init, __FILE__, __LINE__); */
+                goto badarg;
+            }
+        } else {
+            /* private decrypt */
+            if ((algo_init=EVP_PKEY_decrypt_init(ctx)) <= 0) {
+                /* fprintf(stderr,"BADARG %s private decrypt algo_init=%d %s:%d\r\n", algo, algo_init, __FILE__, __LINE__); */
+                goto badarg;
+            }
+        }
+    } else {
+        if (is_encrypt) {
+            /* public encrypt */
+            if ((algo_init=EVP_PKEY_encrypt_init(ctx)) <= 0) {
+                /* fprintf(stderr,"BADARG %s public encrypt algo_init=%d %s:%d\r\n", algo,algo_init,__FILE__, __LINE__); */
+                goto badarg;
+            }
+        } else {
+            /* public decrypt */
+            if ((algo_init=EVP_PKEY_verify_recover_init(ctx)) <= 0) {
+                /* fprintf(stderr,"BADARG %s public decrypt algo_init=%d %s:%d\r\n", algo,algo_init,__FILE__, __LINE__); */
+                goto badarg;
+            }
+        }
+    }
+
+    if (argv[0] == atom_rsa) {
+	if (crypt_opt.signature_md != NULL
+	    && EVP_PKEY_CTX_set_signature_md(ctx, crypt_opt.signature_md) <= 0)
+		goto badarg;
+	if (crypt_opt.rsa_padding == RSA_SSLV23_PADDING) {
+	    if (is_encrypt) {
+		RSA *rsa = EVP_PKEY_get1_RSA(pkey);
+		if (rsa == NULL) goto badarg;
+		tmplen = RSA_size(rsa);
+		if (!enif_alloc_binary(tmplen, &tmp_bin)) goto badarg;
+		if (RSA_padding_add_SSLv23(tmp_bin.data, tmplen, in_bin.data, in_bin.size) <= 0)
+		    goto badarg;
+		in_bin = tmp_bin;
+	    }
+	    if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_NO_PADDING) <= 0) goto badarg;
+	} else {
+	    if (EVP_PKEY_CTX_set_rsa_padding(ctx, crypt_opt.rsa_padding) <= 0) goto badarg;
+	}
+#ifdef HAVE_RSA_OAEP_MD
+	if (crypt_opt.rsa_padding == RSA_PKCS1_OAEP_PADDING) {
+	    if (crypt_opt.rsa_oaep_md != NULL
+		&& EVP_PKEY_CTX_set_rsa_oaep_md(ctx, crypt_opt.rsa_oaep_md) <= 0)
+		goto badarg;
+	    if (crypt_opt.rsa_mgf1_md != NULL
+		&& EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, crypt_opt.rsa_mgf1_md) <= 0) goto badarg;
+	    if (crypt_opt.rsa_oaep_label.data != NULL && crypt_opt.rsa_oaep_label.size > 0) {
+		unsigned char *label_copy;
+		label_copy = OPENSSL_malloc(crypt_opt.rsa_oaep_label.size);
+		if (label_copy == NULL) goto badarg;
+		memcpy((void *)(label_copy), (const void *)(crypt_opt.rsa_oaep_label.data),
+		       crypt_opt.rsa_oaep_label.size);
+		if (EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, label_copy,
+						     crypt_opt.rsa_oaep_label.size) <= 0) {
+		    OPENSSL_free(label_copy);
+		    label_copy = NULL;
+		    goto badarg;
+		}
+	    }
+	}
+#endif
+    }
+
+    if (is_private) {
+	if (is_encrypt) {
+	    /* private_encrypt */
+	    i = EVP_PKEY_sign(ctx, NULL, &outlen, in_bin.data, in_bin.size);
+	} else {
+	    /* private_decrypt */
+	    i = EVP_PKEY_decrypt(ctx, NULL, &outlen, in_bin.data, in_bin.size);
+	}
+    } else {
+	if (is_encrypt) {
+	    /* public_encrypt */
+	    i = EVP_PKEY_encrypt(ctx, NULL, &outlen, in_bin.data, in_bin.size);
+	} else {
+	    /* public_decrypt */
+	    i = EVP_PKEY_verify_recover(ctx, NULL, &outlen, in_bin.data, in_bin.size);
+	}
+    }
+    /* fprintf(stderr,"i = %d %s:%d\r\n", i, __FILE__, __LINE__); */
+
+    if (i != 1) goto badarg;
+
+    enif_alloc_binary(outlen, &out_bin);
+
+    ERL_VALGRIND_ASSERT_MEM_DEFINED(out_bin.data, out_bin.size);
+    if (is_private) {
+	if (is_encrypt) {
+	    /* private_encrypt */
+	    i = EVP_PKEY_sign(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size);
+	} else {
+	    /* private_decrypt */
+	    i = EVP_PKEY_decrypt(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size);
+	}
+    } else {
+	if (is_encrypt) {
+	    /* public_encrypt */
+	    i = EVP_PKEY_encrypt(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size);
+	} else {
+	    /* public_decrypt */
+	    i = EVP_PKEY_verify_recover(ctx, out_bin.data, &outlen, in_bin.data, in_bin.size);
+	}
+    }
+
+#else
+    /* Non-EVP cryptolib. Only support RSA */
+
+    if (argv[0] != atom_rsa) {
+        algo_init = -2;         /* exitcode: notsup */
+        goto badarg;
+    }
+    rsa = EVP_PKEY_get1_RSA(pkey);
+    enif_alloc_binary(RSA_size(rsa), &out_bin);
+
+    if (is_private) {
+        if (is_encrypt) {
+            /* non-evp rsa private encrypt */
+            ERL_VALGRIND_ASSERT_MEM_DEFINED(in_bin.data,in_bin.size);
+            i = RSA_private_encrypt(in_bin.size, in_bin.data,
+                                    out_bin.data, rsa, crypt_opt.rsa_padding);
+            if (i > 0) {
+                ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, i);
+            }
+        } else {
+            /* non-evp rsa private decrypt */
+            i = RSA_private_decrypt(in_bin.size, in_bin.data,
+                                    out_bin.data, rsa, crypt_opt.rsa_padding);       
+            if (i > 0) {
+                ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, i);
+                enif_realloc_binary(&out_bin, i);
+            }
+        }
+    } else {
+        if (is_encrypt) {
+            /* non-evp rsa public encrypt */
+            ERL_VALGRIND_ASSERT_MEM_DEFINED(in_bin.data,in_bin.size);
+            i = RSA_public_encrypt(in_bin.size, in_bin.data,
+                                   out_bin.data, rsa, crypt_opt.rsa_padding);
+            if (i > 0) {
+                ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, i);
+	}
+        } else {
+            /* non-evp rsa public decrypt */
+            i = RSA_public_decrypt(in_bin.size, in_bin.data,
+                                   out_bin.data, rsa, crypt_opt.rsa_padding);    
+            if (i > 0) {
+                ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, i);
+                enif_realloc_binary(&out_bin, i);
+            }
+        }
+    }
+
+    outlen = i;
+    RSA_free(rsa);
+#endif
+
+    if ((i > 0) && argv[0] == atom_rsa && !is_encrypt) {
+	if (crypt_opt.rsa_padding == RSA_SSLV23_PADDING) {
+	    RSA *rsa = EVP_PKEY_get1_RSA(pkey);
+	    unsigned char *p;
+	    if (rsa == NULL) goto badarg;
+	    tmplen = RSA_size(rsa);
+	    if (!enif_alloc_binary(tmplen, &tmp_bin)) goto badarg;
+	    p = out_bin.data;
+	    p++;
+	    i = RSA_padding_check_SSLv23(tmp_bin.data, tmplen, p, out_bin.size - 1, tmplen);
+	    if (i >= 0) {
+		outlen = i;
+		in_bin = out_bin;
+		out_bin = tmp_bin;
+		tmp_bin = in_bin;
+		i = 1;
+	    }
+	}
+    }
+
+    if (tmp_bin.data != NULL) {
+	enif_release_binary(&tmp_bin);
+    }
+
+#ifdef HAS_EVP_PKEY_CTX
+    EVP_PKEY_CTX_free(ctx);
+#else
+#endif
+    EVP_PKEY_free(pkey);
+    if (i > 0) {
+	ERL_VALGRIND_MAKE_MEM_DEFINED(out_bin.data, outlen);
+	if (outlen != out_bin.size) {
+	    enif_realloc_binary(&out_bin, outlen);
+	    ERL_VALGRIND_ASSERT_MEM_DEFINED(out_bin.data, outlen);
+	}
+	return enif_make_binary(env, &out_bin);
+    } else {
+	enif_release_binary(&out_bin);
+	return atom_error;
+    }
+
+ badarg:
+    if (out_bin.data != NULL) {
+	enif_release_binary(&out_bin);
+    }
+    if (tmp_bin.data != NULL) {
+	enif_release_binary(&tmp_bin);
+    }
+#ifdef HAS_EVP_PKEY_CTX
+    EVP_PKEY_CTX_free(ctx);
+#else
+#endif
+    EVP_PKEY_free(pkey);
+    if (algo_init == -2)
+        return atom_notsup;
+    else
+        return enif_make_badarg(env);
+}
+
+
+
+/*--------------------------------*/
+
 /*================================================================*/
 
 static ERL_NIF_TERM rand_seed_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
diff --git a/lib/crypto/doc/src/crypto.xml b/lib/crypto/doc/src/crypto.xml
index 5b2c46a004..8c30d3d50c 100644
--- a/lib/crypto/doc/src/crypto.xml
+++ b/lib/crypto/doc/src/crypto.xml
@@ -753,9 +753,16 @@
 	  <seealso marker="stdlib:rand">random number generation</seealso>,
           in order to generate cryptographically strong random numbers
           (based on OpenSSL's <c>BN_rand_range</c>),
-          and saves it on process dictionary before returning it as well.
+          and saves it in the process dictionary before returning it as well.
           See also
-	  <seealso marker="stdlib:rand#seed-1">rand:seed/1</seealso>.
+	  <seealso marker="stdlib:rand#seed-1">rand:seed/1</seealso> and
+	  <seealso marker="#rand_seed_s-0">rand_seed_s/0</seealso>.
+	</p>
+	<p>
+	  When using the state object from this function the 
+	  <seealso marker="stdlib:rand">rand</seealso> functions using it
+	  may throw exception <c>low_entropy</c> in case the random generator
+	  failed due to lack of secure "randomness".
 	</p>
         <p><em>Example</em></p>
         <pre>
@@ -777,6 +784,120 @@ _FloatValue = rand:uniform().     % [0.0; 1.0[</pre>
           See also
 	  <seealso marker="stdlib:rand#seed_s-1">rand:seed_s/1</seealso>.
 	</p>
+	<p>
+	  When using the state object from this function the 
+	  <seealso marker="stdlib:rand">rand</seealso> functions using it
+	  may throw exception <c>low_entropy</c> in case the random generator
+	  failed due to lack of secure "randomness".
+	</p>
+	<note>
+	  <p>
+	    The state returned from this function can not be used
+	    to get a reproducable random sequence as from
+	    the other 
+	    <seealso marker="stdlib:rand">rand</seealso>
+	    functions,
+	    since reproducability does not match cryptographically safe.
+	  </p>
+	  <p>
+	    The only supported usage is to generate one distinct
+	    random sequence from this start state.
+	  </p>
+	</note>
+      </desc>
+    </func>
+
+    <func>
+      <name>rand_seed_alg(Alg) -> rand:state()</name>
+      <fsummary>Strong random number generation plugin state</fsummary>
+      <type>
+        <v>Alg = crypto | crypto_cache</v>
+      </type>
+      <desc>
+	<marker id="rand_seed_alg-1" />
+	<p>
+          Creates state object for
+	  <seealso marker="stdlib:rand">random number generation</seealso>,
+          in order to generate cryptographically strong random numbers.
+          See also
+	  <seealso marker="stdlib:rand#seed-1">rand:seed/1</seealso> and
+	  <seealso marker="#rand_seed_alg_s-1">rand_seed_alg_s/1</seealso>.
+	</p>
+	<p>
+	  When using the state object from this function the 
+	  <seealso marker="stdlib:rand">rand</seealso> functions using it
+	  may throw exception <c>low_entropy</c> in case the random generator
+	  failed due to lack of secure "randomness".
+	</p>
+	<p>
+	  The cache size can be changed from its default value using the
+	  <seealso marker="crypto_app">
+	    crypto app's
+	  </seealso> configuration parameter <c>rand_cache_size</c>.
+	</p>
+        <p><em>Example</em></p>
+        <pre>
+_ = crypto:rand_seed_alg(crypto_cache),
+_IntegerValue = rand:uniform(42), % [1; 42]
+_FloatValue = rand:uniform().     % [0.0; 1.0[</pre>
+      </desc>
+    </func>
+
+    <func>
+      <name>rand_seed_alg_s(Alg) -> rand:state()</name>
+      <fsummary>Strong random number generation plugin state</fsummary>
+      <type>
+        <v>Alg = crypto | crypto_cache</v>
+      </type>
+      <desc>
+	<marker id="rand_seed_alg_s-1" />
+	<p>
+          Creates state object for
+	  <seealso marker="stdlib:rand">random number generation</seealso>,
+          in order to generate cryptographically strongly random numbers.
+          See also
+	  <seealso marker="stdlib:rand#seed_s-1">rand:seed_s/1</seealso>.
+	</p>
+	<p>
+	  If <c>Alg</c> is <c>crypto</c> this function behaves exactly like
+	  <seealso marker="#rand_seed_s-0">rand_seed_s/0</seealso>.
+	</p>
+	<p>
+	  If <c>Alg</c> is <c>crypto_cache</c> this function
+	  fetches random data with OpenSSL's <c>RAND_bytes</c>
+	  and caches it for speed using an internal word size
+	  of 56 bits that makes calculations fast on 64 bit machines.
+	</p>
+	<p>
+	  When using the state object from this function the 
+	  <seealso marker="stdlib:rand">rand</seealso> functions using it
+	  may throw exception <c>low_entropy</c> in case the random generator
+	  failed due to lack of secure "randomness".
+	</p>
+	<p>
+	  The cache size can be changed from its default value using the
+	  <seealso marker="crypto_app">
+	    crypto app's
+	  </seealso> configuration parameter <c>rand_cache_size</c>.
+	</p>
+	<note>
+	  <p>
+	    The state returned from this function can not be used
+	    to get a reproducable random sequence as from
+	    the other 
+	    <seealso marker="stdlib:rand">rand</seealso>
+	    functions,
+	    since reproducability does not match cryptographically safe.
+	  </p>
+	  <p>
+	    In fact since random data is cached some numbers may
+	    get reproduced if you try, but this is unpredictable.
+	  </p>
+	  <p>
+	    The only supported usage is to generate one distinct
+	    random sequence from this start state.
+	  </p>
+	</note>
       </desc>
     </func>
 
diff --git a/lib/crypto/doc/src/crypto_app.xml b/lib/crypto/doc/src/crypto_app.xml
index ba22557480..8296b1bc77 100644
--- a/lib/crypto/doc/src/crypto_app.xml
+++ b/lib/crypto/doc/src/crypto_app.xml
@@ -68,6 +68,24 @@
         thus the crypto module will fail to load. This mechanism
         prevents the accidental use of non-validated algorithms.</p>
       </item>
+      <tag><c>rand_cache_size = integer()</c></tag>
+      <item>
+        <p>
+	  Sets the cache size in bytes to use by
+	  <seealso marker="crypto#rand_seed_alg-1">
+	    <c>crypto:rand_seed_alg(crypto_cache)</c>
+	  </seealso> and
+	  <seealso marker="crypto#rand_seed_alg_s-1">
+	    <c>crypto:rand_seed_alg_s(crypto_cache)</c>
+	  </seealso>.
+	  This parameter is read when a seed function is called,
+	  and then kept in generators state object.  It has a rather
+	  small default value that causes reads of strong random bytes
+	  about once per hundred calls for a random value.
+	  The set value is rounded up to an integral number of words
+	  of the size these seed functions use.
+	</p>
+      </item>
     </taglist>
   </section>
 
diff --git a/lib/crypto/doc/src/fascicules.xml b/lib/crypto/doc/src/fascicules.xml
deleted file mode 100644
index cbc266cd30..0000000000
--- a/lib/crypto/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="usersguide" href="usersguide_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="release_notes" href="release_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/crypto/doc/src/note.gif b/lib/crypto/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/crypto/doc/src/note.gif
+++ /dev/null
diff --git a/lib/crypto/doc/src/notes.xml b/lib/crypto/doc/src/notes.xml
index 574353ce7a..9376e6f649 100644
--- a/lib/crypto/doc/src/notes.xml
+++ b/lib/crypto/doc/src/notes.xml
@@ -31,6 +31,52 @@
   </header>
   <p>This document describes the changes made to the Crypto application.</p>
 
+<section><title>Crypto 4.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p>On macOS, <c>crypto</c> would crash if <c>observer</c>
+	    had been started before <c>crypto</c>. On the beta for
+	    macOS 10.13 (High Sierra), <c>crypto</c> would crash.
+	    Both of those bugs have been fixed.</p>
+          <p>
+	    Own Id: OTP-14499 Aux Id: ERL-251 ERL-439 </p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    Extend crypto:sign, crypto:verify, public_key:sign and
+	    public_key:verify with:</p>
+          <p>
+	    * support for RSASSA-PS padding for signatures and for
+	    saltlength setting<br/> * X9.31 RSA padding.<br/> * sha,
+	    sha224, sha256, sha384, and sha512 for dss signatures as
+	    mentioned in NIST SP 800-57 Part 1.<br/> * ripemd160 to
+	    be used for rsa signatures.</p>
+          <p>
+	    This is a manual merge of half of the pull request 838 by
+	    potatosalad from Sept 2015.</p>
+          <p>
+	    Own Id: OTP-13704 Aux Id: PR838 </p>
+        </item>
+        <item>
+          <p>
+	    A new tuple in <c>crypto:supports/0</c> reports supported
+	    MAC algorithms.</p>
+          <p>
+	    Own Id: OTP-14504</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Crypto 4.0</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/crypto/doc/src/warning.gif b/lib/crypto/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/crypto/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/crypto/src/crypto.app.src b/lib/crypto/src/crypto.app.src
index 1d3f35e465..492aa10e51 100644
--- a/lib/crypto/src/crypto.app.src
+++ b/lib/crypto/src/crypto.app.src
@@ -24,7 +24,7 @@
 	       crypto_ec_curves]},
     {registered, []},
     {applications, [kernel, stdlib]},
-    {env, [{fips_mode, false}]},
+    {env, [{fips_mode, false}, {rand_cache_size, 896}]},
     {runtime_dependencies, ["erts-9.0","stdlib-3.4","kernel-5.3"]}]}.
 
 
diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl
index 1df05462c9..6b4f3a256d 100644
--- a/lib/crypto/src/crypto.erl
+++ b/lib/crypto/src/crypto.erl
@@ -30,11 +30,12 @@
 -export([hmac/3, hmac/4, hmac_init/2, hmac_update/2, hmac_final/1, hmac_final_n/2]).
 -export([cmac/3, cmac/4]).
 -export([exor/2, strong_rand_bytes/1, mod_pow/3]).
--export([rand_seed/0]).
--export([rand_seed_s/0]).
+-export([rand_seed/0, rand_seed_alg/1]).
+-export([rand_seed_s/0, rand_seed_alg_s/1]).
 -export([rand_plugin_next/1]).
 -export([rand_plugin_uniform/1]).
 -export([rand_plugin_uniform/2]).
+-export([rand_cache_plugin_next/1]).
 -export([rand_uniform/2]).
 -export([block_encrypt/3, block_decrypt/3, block_encrypt/4, block_decrypt/4]).
 -export([next_iv/2, next_iv/3]).
@@ -301,9 +302,17 @@ stream_decrypt(State, Data0) ->
 %%
 %% RAND - pseudo random numbers using RN_ and BN_ functions in crypto lib
 %%
+-type rand_cache_seed() ::
+        nonempty_improper_list(non_neg_integer(), binary()).
 -spec strong_rand_bytes(non_neg_integer()) -> binary().
 -spec rand_seed() -> rand:state().
 -spec rand_seed_s() -> rand:state().
+-spec rand_seed_alg(Alg :: atom()) ->
+                           {rand:alg_handler(),
+                            atom() | rand_cache_seed()}.
+-spec rand_seed_alg_s(Alg :: atom()) ->
+                             {rand:alg_handler(),
+                              atom() | rand_cache_seed()}.
 -spec rand_uniform(crypto_integer(), crypto_integer()) ->
 			  crypto_integer().
 
@@ -319,12 +328,36 @@ rand_seed() ->
     rand:seed(rand_seed_s()).
 
 rand_seed_s() ->
+    rand_seed_alg_s(?MODULE).
+
+rand_seed_alg(Alg) ->
+    rand:seed(rand_seed_alg_s(Alg)).
+
+-define(CRYPTO_CACHE_BITS, 56).
+rand_seed_alg_s(?MODULE) ->
     {#{ type => ?MODULE,
         bits => 64,
         next => fun ?MODULE:rand_plugin_next/1,
         uniform => fun ?MODULE:rand_plugin_uniform/1,
         uniform_n => fun ?MODULE:rand_plugin_uniform/2},
-     no_seed}.
+     no_seed};
+rand_seed_alg_s(crypto_cache) ->
+    CacheBits = ?CRYPTO_CACHE_BITS,
+    EnvCacheSize =
+        application:get_env(
+          crypto, rand_cache_size, CacheBits * 16), % Cache 16 * 8 words
+    Bytes = (CacheBits + 7) div 8,
+    CacheSize =
+        case ((EnvCacheSize + (Bytes - 1)) div Bytes) * Bytes of
+            Sz when is_integer(Sz), Bytes =< Sz ->
+                Sz;
+            _ ->
+                Bytes
+        end,
+    {#{ type => crypto_cache,
+        bits => CacheBits,
+        next => fun ?MODULE:rand_cache_plugin_next/1},
+     {CacheBits, CacheSize, <<>>}}.
 
 rand_plugin_next(Seed) ->
     {bytes_to_integer(strong_rand_range(1 bsl 64)), Seed}.
@@ -335,6 +368,12 @@ rand_plugin_uniform(State) ->
 rand_plugin_uniform(Max, State) ->
     {bytes_to_integer(strong_rand_range(Max)) + 1, State}.
 
+rand_cache_plugin_next({CacheBits, CacheSize, <<>>}) ->
+    rand_cache_plugin_next(
+      {CacheBits, CacheSize, strong_rand_bytes(CacheSize)});
+rand_cache_plugin_next({CacheBits, CacheSize, Cache}) ->
+    <<I:CacheBits, NewCache/binary>> = Cache,
+    {I, {CacheBits, CacheSize, NewCache}}.
 
 strong_rand_range(Range) when is_integer(Range), Range > 0 ->
     BinRange = int_to_bin(Range),
@@ -382,7 +421,7 @@ rand_uniform_nif(_From,_To) -> ?nif_stub.
 
 
 -spec rand_seed(binary()) -> ok.
-rand_seed(Seed) ->
+rand_seed(Seed) when is_binary(Seed) ->
     rand_seed_nif(Seed).
 
 rand_seed_nif(_Seed) -> ?nif_stub.
@@ -420,46 +459,55 @@ sign(Algorithm, Type, Data, Key, Options) ->
 	Signature -> Signature
     end.
 
--spec public_encrypt(rsa, binary(), [binary()], rsa_padding()) ->
-				binary().
--spec public_decrypt(rsa, binary(), [integer() | binary()], rsa_padding()) ->
-				binary().
--spec private_encrypt(rsa, binary(), [integer() | binary()], rsa_padding()) ->
-				binary().
--spec private_decrypt(rsa, binary(), [integer() | binary()], rsa_padding()) ->
-				binary().
-
-public_encrypt(rsa, BinMesg, Key, Padding) ->
-    case rsa_public_crypt(BinMesg,  map_ensure_int_as_bin(Key), Padding, true) of
-	error ->
-	    erlang:error(encrypt_failed, [rsa, BinMesg,Key, Padding]);
-	Sign -> Sign
-    end.
 
-%% Binary, Key = [E,N,D]
-private_decrypt(rsa, BinMesg, Key, Padding) ->
-    case rsa_private_crypt(BinMesg, map_ensure_int_as_bin(Key), Padding, false) of
-	error ->
-	    erlang:error(decrypt_failed, [rsa, BinMesg,Key, Padding]);
-	Sign -> Sign
-    end.
+-type pk_algs() :: rsa | ecdsa | dss .
+-type pk_opt() :: list() | rsa_padding() .
 
+-spec public_encrypt(pk_algs(),  binary(), [binary()],             pk_opt()) -> binary().
+-spec public_decrypt(pk_algs(),  binary(), [integer() | binary()], pk_opt()) -> binary().
+-spec private_encrypt(pk_algs(), binary(), [integer() | binary()], pk_opt()) -> binary().
+-spec private_decrypt(pk_algs(), binary(), [integer() | binary()], pk_opt()) -> binary().
 
-%% Binary, Key = [E,N,D]
-private_encrypt(rsa, BinMesg, Key, Padding) ->
-    case rsa_private_crypt(BinMesg, map_ensure_int_as_bin(Key), Padding, true) of
-	error ->
-	    erlang:error(encrypt_failed, [rsa, BinMesg,Key, Padding]);
-	Sign -> Sign
-    end.
+public_encrypt(Algorithm, In, Key, Options) when is_list(Options) ->
+    case pkey_crypt_nif(Algorithm, In, format_pkey(Algorithm, Key), Options, false, true) of
+	error -> erlang:error(encrypt_failed, [Algorithm, In, Key, Options]);
+	notsup -> erlang:error(notsup);
+	Out -> Out
+    end;
+%% Backwards compatible
+public_encrypt(Algorithm = rsa, In, Key, Padding) when is_atom(Padding) ->
+    public_encrypt(Algorithm, In, Key, [{rsa_padding, Padding}]).
+
+private_decrypt(Algorithm, In, Key, Options) when is_list(Options) ->
+    case pkey_crypt_nif(Algorithm, In, format_pkey(Algorithm, Key), Options, true, false) of
+	error -> erlang:error(decrypt_failed, [Algorithm, In, Key, Options]);
+	notsup -> erlang:error(notsup);
+	Out -> Out
+    end;
+%% Backwards compatible
+private_decrypt(Algorithm = rsa, In, Key, Padding) when is_atom(Padding) ->
+    private_decrypt(Algorithm, In, Key, [{rsa_padding, Padding}]).
+
+private_encrypt(Algorithm, In, Key, Options) when is_list(Options) ->
+    case pkey_crypt_nif(Algorithm, In, format_pkey(Algorithm, Key), Options, true, true) of
+	error -> erlang:error(encrypt_failed, [Algorithm, In, Key, Options]);
+	notsup -> erlang:error(notsup);
+	Out -> Out
+    end;
+%% Backwards compatible
+private_encrypt(Algorithm = rsa, In, Key, Padding) when is_atom(Padding) ->
+    private_encrypt(Algorithm, In, Key, [{rsa_padding, Padding}]).
+
+public_decrypt(Algorithm, In, Key, Options) when is_list(Options) ->
+    case pkey_crypt_nif(Algorithm, In, format_pkey(Algorithm, Key), Options, false, false) of
+	error -> erlang:error(decrypt_failed, [Algorithm, In, Key, Options]);
+	notsup -> erlang:error(notsup);
+	Out -> Out
+    end;
+%% Backwards compatible
+public_decrypt(Algorithm = rsa, In, Key, Padding) when is_atom(Padding) ->
+    public_decrypt(Algorithm, In, Key, [{rsa_padding, Padding}]).
 
-%% Binary, Key = [E,N]
-public_decrypt(rsa, BinMesg, Key, Padding) ->
-    case rsa_public_crypt(BinMesg, map_ensure_int_as_bin(Key), Padding, false) of
-	error ->
-	    erlang:error(decrypt_failed, [rsa, BinMesg,Key, Padding]);
-	Sign -> Sign
-    end.
 
 %%
 %% XOR - xor to iolists and return a binary
@@ -970,9 +1018,7 @@ format_pkey(_, Key) ->
 %%
 -type rsa_padding() :: 'rsa_pkcs1_padding' | 'rsa_pkcs1_oaep_padding' | 'rsa_no_padding'.
 
-rsa_public_crypt(_BinMsg, _Key, _Padding, _IsEncrypt) -> ?nif_stub.
-
-rsa_private_crypt(_BinMsg, _Key, _Padding, _IsEncrypt) -> ?nif_stub.
+pkey_crypt_nif(_Algorithm, _In, _Key, _Options, _IsPrivate, _IsEncrypt) -> ?nif_stub.
 
 %% large integer in a binary with 32bit length
 %% MP representaion  (SSH2)
diff --git a/lib/crypto/test/crypto_SUITE.erl b/lib/crypto/test/crypto_SUITE.erl
index 88f13d766c..69f02d3da6 100644
--- a/lib/crypto/test/crypto_SUITE.erl
+++ b/lib/crypto/test/crypto_SUITE.erl
@@ -122,10 +122,15 @@ groups() ->
      {sha512, [], [hash, hmac]},
      {rsa, [], [sign_verify,
                 public_encrypt,
+                private_encrypt,
                 generate
                ]},
-     {dss, [], [sign_verify]},
-     {ecdsa, [], [sign_verify]},
+     {dss, [], [sign_verify
+                %% Does not work yet:  ,public_encrypt, private_encrypt
+               ]},
+     {ecdsa, [], [sign_verify
+                %% Does not work yet:  ,public_encrypt, private_encrypt
+                 ]},
      {dh, [], [generate_compute]},
      {ecdh, [], [compute, generate]},
      {srp, [], [generate_compute]},
@@ -439,10 +444,16 @@ sign_verify(Config) when is_list(Config) ->
 
 %%-------------------------------------------------------------------- 
 public_encrypt() ->
-     [{doc, "Test public_encrypt/decrypt and private_encrypt/decrypt functions. "}].
+     [{doc, "Test public_encrypt/decrypt "}].
 public_encrypt(Config) when is_list(Config) ->
     Params = proplists:get_value(pub_priv_encrypt, Config),
-    lists:foreach(fun do_public_encrypt/1, Params),
+    lists:foreach(fun do_public_encrypt/1, Params).
+
+%%-------------------------------------------------------------------- 
+private_encrypt() ->
+     [{doc, "Test private_encrypt/decrypt functions. "}].
+private_encrypt(Config) when is_list(Config) ->
+    Params = proplists:get_value(pub_priv_encrypt, Config),
     lists:foreach(fun do_private_encrypt/1, Params).
 
 %%--------------------------------------------------------------------
@@ -819,7 +830,7 @@ do_private_encrypt({_Type, _Public, _Private, _Msg, rsa_pkcs1_oaep_padding}) ->
     ok; %% Not supported by openssl
 do_private_encrypt({Type, Public, Private, Msg, Padding}) ->
     PrivEcn = (catch crypto:private_encrypt(Type, Msg, Private, Padding)),
-    case crypto:public_decrypt(rsa, PrivEcn, Public, Padding) of
+    case crypto:public_decrypt(Type, PrivEcn, Public, Padding) of
 	Msg ->
 	    ok;
 	Other ->
@@ -1233,7 +1244,9 @@ group_config(dss = Type, Config) ->
     SignVerify = [{Type, Hash, Public, Private, Msg} 
                   || Hash <- DssHashs,
                      lists:member(Hash, SupportedHashs)],
-    [{sign_verify, SignVerify} | Config];
+    MsgPubEnc = <<"7896345786348 Asldi">>,
+    PubPrivEnc = [{dss, Public, Private, MsgPubEnc, []}],
+    [{sign_verify, SignVerify}, {pub_priv_encrypt, PubPrivEnc}  | Config];
 
 group_config(ecdsa = Type, Config) ->
     {Private, Public} = ec_key_named(),
@@ -1243,7 +1256,9 @@ group_config(ecdsa = Type, Config) ->
     SignVerify = [{Type, Hash, Public, Private, Msg} 
                   || Hash <- DssHashs,
                      lists:member(Hash, SupportedHashs)],
-    [{sign_verify, SignVerify} | Config];
+    MsgPubEnc = <<"7896345786348 Asldi">>,
+    PubPrivEnc = [{ecdsa, Public, Private, MsgPubEnc, []}],
+    [{sign_verify, SignVerify}, {pub_priv_encrypt, PubPrivEnc} | Config];
 group_config(srp, Config) ->
     GenerateCompute = [srp3(), srp6(), srp6a(), srp6a_smaller_prime()],
     [{generate_compute, GenerateCompute} | Config];
diff --git a/lib/crypto/vsn.mk b/lib/crypto/vsn.mk
index 796e3b6d84..1dceebb4e4 100644
--- a/lib/crypto/vsn.mk
+++ b/lib/crypto/vsn.mk
@@ -1 +1 @@
-CRYPTO_VSN = 4.0
+CRYPTO_VSN = 4.1
diff --git a/lib/debugger/doc/src/fascicules.xml b/lib/debugger/doc/src/fascicules.xml
deleted file mode 100644
index 154c8a3b6d..0000000000
--- a/lib/debugger/doc/src/fascicules.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-</fascicules>
-
diff --git a/lib/debugger/doc/src/notes.xml b/lib/debugger/doc/src/notes.xml
index fa85567a84..21fe7d449d 100644
--- a/lib/debugger/doc/src/notes.xml
+++ b/lib/debugger/doc/src/notes.xml
@@ -33,6 +33,21 @@
   <p>This document describes the changes made to the Debugger
     application.</p>
 
+<section><title>Debugger 4.2.3</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    Tools are updated to show Unicode atoms correctly.</p>
+          <p>
+	    Own Id: OTP-14464</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Debugger 4.2.2</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/debugger/src/dbg_ieval.erl b/lib/debugger/src/dbg_ieval.erl
index 88c7caacb0..8009d62629 100644
--- a/lib/debugger/src/dbg_ieval.erl
+++ b/lib/debugger/src/dbg_ieval.erl
@@ -353,15 +353,15 @@ format_trace(What, Args, P) ->
             {Called, {Le,Li,M,F,As}} = Args,
             case Called of
                 extern ->	
-                    io_lib:format("++ (~w) <~w> ~w:~w~ts~n",
+                    io_lib:format("++ (~w) <~w> ~w:~tw~ts~n",
                                   [Le,Li,M,F,format_args(As, P)]);
                 local ->
-                    io_lib:format("++ (~w) <~w> ~w~ts~n",
+                    io_lib:format("++ (~w) <~w> ~tw~ts~n",
                                   [Le,Li,F,format_args(As, P)])
             end;
         call_fun ->
             {Le,Li,F,As} = Args,
-            io_lib:format("++ (~w) <~w> ~w~ts~n",
+            io_lib:format("++ (~w) <~w> ~tw~ts~n",
                           [Le, Li, F, format_args(As, P)]);
         return ->
             {Le,Val} = Args,
@@ -370,7 +370,7 @@ format_trace(What, Args, P) ->
 
         bif ->
             {Le,Li,M,F,As} = Args,
-            io_lib:format("++ (~w) <~w> ~w:~w~ts~n",
+            io_lib:format("++ (~w) <~w> ~w:~tw~ts~n",
                           [Le, Li, M, F, format_args(As, P)])
     end.
 
diff --git a/lib/debugger/src/dbg_wx_break_win.erl b/lib/debugger/src/dbg_wx_break_win.erl
index 770681510d..10e9272254 100644
--- a/lib/debugger/src/dbg_wx_break_win.erl
+++ b/lib/debugger/src/dbg_wx_break_win.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2008-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2017. All Rights Reserved.
 %% 
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -159,7 +159,7 @@ create_win(Parent, Pos, Type, Mod, Line) ->
 %%--------------------------------------------------------------------
 update_functions(WinInfo, Funcs) ->
     Items = lists:map(fun([N, A]) -> 
-			      lists:flatten(io_lib:format("~p/~p", [N,A]))
+			      lists:flatten(io_lib:format("~tw/~w", [N,A]))
 		      end,
 		      Funcs),
     wxListBox:set(WinInfo#winInfo.listbox, Items),
diff --git a/lib/debugger/src/dbg_wx_mon_win.erl b/lib/debugger/src/dbg_wx_mon_win.erl
index 9737c9e67f..fcd954454b 100644
--- a/lib/debugger/src/dbg_wx_mon_win.erl
+++ b/lib/debugger/src/dbg_wx_mon_win.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2008-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -342,7 +342,7 @@ add_process(WinInfo, Pid, Name, {Mod,Func,Args}, Status, Info) ->
     Row = (WinInfo#winInfo.row),
     
     Name2 = case Name of undefined -> ""; _ -> to_string(Name) end,
-    FuncS = to_string("~w:~w/~w", [Mod, Func, length(Args)]),
+    FuncS = to_string("~w:~tw/~w", [Mod, Func, length(Args)]),
     Info2 = case Info of {} -> ""; _ -> to_string(Info) end,
     Pid2  = to_string("~p",[Pid]),
     
diff --git a/lib/debugger/src/dbg_wx_trace.erl b/lib/debugger/src/dbg_wx_trace.erl
index f4ee30618c..b1e0e03b4c 100644
--- a/lib/debugger/src/dbg_wx_trace.erl
+++ b/lib/debugger/src/dbg_wx_trace.erl
@@ -345,11 +345,12 @@ gui_cmd('Back Trace', State) ->
     P = p(State),
     lists:foreach(
       fun({Le, {Mod,Func,Args}}) ->
-	      Str = io_lib:format("~p > ~p:~p"++P++"~n",
-				  [Le, Mod, Func, Args]),
+	      Str = io_lib:format("~p > ~w:~tw~ts\n",
+				  [Le, Mod, Func, format_args(Args, P)]),
 	      dbg_wx_trace_win:trace_output(State#state.win,Str);
 	 ({Le, {Fun,Args}}) ->
-	      Str = io_lib:format("~p > ~p"++P++"~n", [Le, Fun, Args]),
+	      Str = io_lib:format("~p > ~p~ts~n",
+                                  [Le, Fun, format_args(Args, P)]),
 	      dbg_wx_trace_win:trace_output(State#state.win,Str);
 	 (_) -> ignore
       end,
@@ -539,6 +540,18 @@ add_break(WI, Coords, Type, Mod, Line) ->
     Win = dbg_wx_trace_win:get_window(WI),
     dbg_wx_break:start(Win, Coords, Type, Mod, Line).
 
+format_args(As, P) when is_list(As) ->
+    [$(,format_args1(As, P),$)];
+format_args(A, P) ->
+    [$/,io_lib:format(P, [A])].
+
+format_args1([A], P) ->
+    [io_lib:format(P, [A])];
+format_args1([A|As], P) ->
+    [io_lib:format(P, [A]),$,|format_args1(As, P)];
+format_args1([], _) ->
+    [].
+
 %%--Commands from the interpreter-------------------------------------
 
 int_cmd({interpret, Mod}, State) ->
diff --git a/lib/debugger/src/dbg_wx_win.erl b/lib/debugger/src/dbg_wx_win.erl
index f1298154ab..9f59915476 100644
--- a/lib/debugger/src/dbg_wx_win.erl
+++ b/lib/debugger/src/dbg_wx_win.erl
@@ -299,7 +299,7 @@ open_help(_Parent, HelpHtmlFile) ->
 %%--------------------------------------------------------------------
     
 to_string(Atom) when is_atom(Atom) ->
-    atom_to_list(Atom);
+    io_lib:format("~tw", [Atom]);
 to_string(Integer) when is_integer(Integer) ->
     integer_to_list(Integer);
 to_string([]) -> "";
diff --git a/lib/debugger/src/debugger.app.src b/lib/debugger/src/debugger.app.src
index 446f2b9882..37a41c1a56 100644
--- a/lib/debugger/src/debugger.app.src
+++ b/lib/debugger/src/debugger.app.src
@@ -48,5 +48,5 @@
 	    ]},
   {registered, [dbg_iserver, dbg_wx_mon, dbg_wx_winman]},
   {applications, [kernel, stdlib]},
-  {runtime_dependencies, ["wx-1.2","stdlib-2.5","kernel-3.0","erts-6.0",
+  {runtime_dependencies, ["wx-1.2","stdlib-3.4","kernel-5.3","erts-9.0",
 			  "compiler-5.0"]}]}.
diff --git a/lib/debugger/src/i.erl b/lib/debugger/src/i.erl
index 2da3e77618..853fa529a0 100644
--- a/lib/debugger/src/i.erl
+++ b/lib/debugger/src/i.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1998-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2017. All Rights Reserved.
 %% 
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -30,7 +30,7 @@
 -import(lists, [sort/1,foreach/2]).
 
 iv() ->
-    Vsn = string:substr(filename:basename(code:lib_dir(debugger)), 10),
+    Vsn = string:slice(filename:basename(code:lib_dir(debugger)), 9),
     list_to_atom(Vsn).
 
 %% -------------------------------------------
@@ -307,13 +307,13 @@ ip() ->
 
 ip([{Pid,{M,F,A},Status,{}}|Stats]) ->
     hformat(io_lib:format("~w",[Pid]),
-	    io_lib:format("~p:~p/~p",[M,F,length(A)]),
+	    io_lib:format("~w:~tw/~w",[M,F,length(A)]),
 	    io_lib:format("~w",[Status]),
 	    ""),
     ip(Stats);
 ip([{Pid,{M,F,A},Status,Info}|Stats]) ->
     hformat(io_lib:format("~w",[Pid]),
-	    io_lib:format("~p:~p/~p",[M,F,length(A)]),
+	    io_lib:format("~w:~tw/~w",[M,F,length(A)]),
 	    io_lib:format("~w",[Status]),
 	    io_lib:format("~w",[Info])),
     ip(Stats);
@@ -321,7 +321,7 @@ ip([]) ->
     ok.
 
 hformat(A1, A2, A3, A4) ->
-    format("~-12s ~-21s ~-9s ~-21s~n", [A1,A2,A3,A4]).
+    format("~-12s ~-21ts ~-9s ~-21s~n", [A1,A2,A3,A4]).
 
 
 %% -------------------------------------------
diff --git a/lib/debugger/vsn.mk b/lib/debugger/vsn.mk
index 3534570ef5..72cedb2240 100644
--- a/lib/debugger/vsn.mk
+++ b/lib/debugger/vsn.mk
@@ -1 +1 @@
-DEBUGGER_VSN = 4.2.2
+DEBUGGER_VSN = 4.2.3
diff --git a/lib/dialyzer/doc/src/Makefile b/lib/dialyzer/doc/src/Makefile
index 8fe6cd30eb..3463b589e6 100644
--- a/lib/dialyzer/doc/src/Makefile
+++ b/lib/dialyzer/doc/src/Makefile
@@ -9,11 +9,11 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # The Initial Developer of the Original Code is Ericsson Utvecklings AB.
 # Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
 # AB. All Rights Reserved.''
-# 
+#
 
 include $(ERL_TOP)/make/target.mk
 include $(ERL_TOP)/make/$(TARGET)/otp.mk
@@ -36,7 +36,7 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN)
 XML_APPLICATION_FILES = ref_man.xml
 XML_REF3_FILES = dialyzer.xml typer.xml
 
-XML_PART_FILES = part.xml part_notes.xml
+XML_PART_FILES = part.xml
 XML_CHAPTER_FILES = dialyzer_chapter.xml notes.xml
 
 BOOK_FILES = book.xml
@@ -65,9 +65,9 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -85,19 +85,19 @@ html: gifs $(HTML_REF_MAN_FILE)
 
 man: $(MAN3_FILES)
 
-gifs: $(GIF_FILES:%=$(HTMLDIR)/%) 
+gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
 	rm -f $(MAN3DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/dialyzer/doc/src/fascicules.xml b/lib/dialyzer/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/dialyzer/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/dialyzer/doc/src/note.gif b/lib/dialyzer/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/dialyzer/doc/src/note.gif
+++ /dev/null
diff --git a/lib/dialyzer/doc/src/notes.xml b/lib/dialyzer/doc/src/notes.xml
index c26b7aab5e..6a6e65cb94 100644
--- a/lib/dialyzer/doc/src/notes.xml
+++ b/lib/dialyzer/doc/src/notes.xml
@@ -32,6 +32,40 @@
   <p>This document describes the changes made to the Dialyzer
     application.</p>
 
+<section><title>Dialyzer 3.2.2</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p> Fix a bug regarding map types that caused Dialyzer to
+	    go into an infinite loop. A consequence of the fix is
+	    that compound map keys such as maps and tuples sometimes
+	    are handled with less precision than before. </p>
+          <p>
+	    Own Id: OTP-14572 Aux Id: seq13319 </p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+        <item>
+	    <p> The check for unknown remote types is improved. </p>
+          <p>
+	    Own Id: OTP-14606 Aux Id: OTP-14218 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Dialyzer 3.2.1</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/dialyzer/doc/src/part_notes.xml b/lib/dialyzer/doc/src/part_notes.xml
deleted file mode 100644
index 4a0a0af2d1..0000000000
--- a/lib/dialyzer/doc/src/part_notes.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2006</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Dialyzer Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-    <file>part_notes.xml</file>
-  </header>
-  <description>
-    <p><em>Dialyzer</em> is a static analysis tool that identifies software discrepancies such as type errors, unreachable code, unnecessary tests, etc in single Erlang modules or entire (sets of) applications.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/dialyzer/doc/src/warning.gif b/lib/dialyzer/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/dialyzer/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/dialyzer/src/dialyzer.app.src b/lib/dialyzer/src/dialyzer.app.src
index 5f803875b0..e3a0fc967d 100644
--- a/lib/dialyzer/src/dialyzer.app.src
+++ b/lib/dialyzer/src/dialyzer.app.src
@@ -48,6 +48,6 @@
   {registered, []},
   {applications, [compiler, hipe, kernel, stdlib, wx]},
   {env, []},
-  {runtime_dependencies, ["wx-1.2","syntax_tools-2.0","stdlib-3.0",
-			  "kernel-5.0","hipe-3.15.4","erts-8.0",
+  {runtime_dependencies, ["wx-1.2","syntax_tools-2.0","stdlib-3.4",
+			  "kernel-5.3","hipe-3.16.1","erts-9.0",
 			  "compiler-7.0"]}]}.
diff --git a/lib/dialyzer/src/dialyzer.erl b/lib/dialyzer/src/dialyzer.erl
index c319acb2fb..1538174d4a 100644
--- a/lib/dialyzer/src/dialyzer.erl
+++ b/lib/dialyzer/src/dialyzer.erl
@@ -498,24 +498,24 @@ call_or_apply_to_string(ArgNs, FailReason, SigArgs, SigRet,
 	true ->
 	  %% We do not know which argument(s) caused the failure
 	  io_lib:format("will never return since the success typing arguments"
-			" are ~s\n", [SigArgs]);
+			" are ~ts\n", [SigArgs]);
         false ->
 	  io_lib:format("will never return since it differs in the ~s argument"
-			" from the success typing arguments: ~s\n",
+			" from the success typing arguments: ~ts\n",
 			[PositionString, SigArgs])
       end;
     only_contract ->
       case (ArgNs =:= []) orelse IsOverloaded of
 	true ->
 	  %% We do not know which arguments caused the failure
-	  io_lib:format("breaks the contract ~s\n", [Contract]);
+	  io_lib:format("breaks the contract ~ts\n", [Contract]);
 	false ->
-	  io_lib:format("breaks the contract ~s in the ~s argument\n",
+	  io_lib:format("breaks the contract ~ts in the ~s argument\n",
 			[Contract, PositionString])
       end;
     both ->
-      io_lib:format("will never return since the success typing is ~s -> ~s"
-		    " and the contract is ~s\n", [SigArgs, SigRet, Contract])
+      io_lib:format("will never return since the success typing is ~ts -> ~ts"
+		    " and the contract is ~ts\n", [SigArgs, SigRet, Contract])
   end.
 
 form_positions(ArgNs) ->
@@ -533,9 +533,9 @@ form_positions(ArgNs) ->
 form_expected_without_opaque([{N, T, TStr}]) ->
   case erl_types:t_is_opaque(T) of
     true  ->
-      io_lib:format("an opaque term of type ~s as ", [TStr]);
+      io_lib:format("an opaque term of type ~ts as ", [TStr]);
     false ->
-      io_lib:format("a term of type ~s (with opaque subterms) as ", [TStr])
+      io_lib:format("a term of type ~ts (with opaque subterms) as ", [TStr])
   end ++ form_position_string([N]) ++ " argument";
 form_expected_without_opaque(ExpectedTriples) -> %% TODO: can do much better here
   {ArgNs, _Ts, _TStrs} = lists:unzip3(ExpectedTriples),
@@ -546,8 +546,8 @@ form_expected(ExpectedArgs) ->
     [T] ->
       TS = erl_types:t_to_string(T),
       case erl_types:t_is_opaque(T) of
-	true  -> io_lib:format("an opaque term of type ~s is expected", [TS]);
-	false -> io_lib:format("a structured term of type ~s is expected", [TS])
+	true  -> io_lib:format("an opaque term of type ~ts is expected", [TS]);
+	false -> io_lib:format("a structured term of type ~ts is expected", [TS])
       end;
     [_,_|_] -> "terms of different types are expected in these positions"
   end.
diff --git a/lib/dialyzer/src/dialyzer_cl.erl b/lib/dialyzer/src/dialyzer_cl.erl
index 0617be6435..1e06d6e974 100644
--- a/lib/dialyzer/src/dialyzer_cl.erl
+++ b/lib/dialyzer/src/dialyzer_cl.erl
@@ -672,7 +672,7 @@ failed_anal_msg(Reason, LogCache) ->
 %%
 format_log_cache(LogCache) ->
   Str = lists:append(lists:reverse(LogCache)),
-  string:join(string:tokens(Str, "\n"), "\n  ").
+  lists:join("\n  ", string:lexemes(Str, "\n")).
 
 -spec store_warnings(#cl_state{}, [raw_warning()]) -> #cl_state{}.
 
diff --git a/lib/dialyzer/src/dialyzer_cl_parse.erl b/lib/dialyzer/src/dialyzer_cl_parse.erl
index a456d38e64..80c10183cf 100644
--- a/lib/dialyzer/src/dialyzer_cl_parse.erl
+++ b/lib/dialyzer/src/dialyzer_cl_parse.erl
@@ -82,7 +82,7 @@ cl(["--get_warnings"|T]) ->
 cl(["-D"|_]) ->
   cl_error("No defines specified after -D");
 cl(["-D"++Define|T]) ->
-  Def = re:split(Define, "=", [{return, list}]),
+  Def = re:split(Define, "=", [{return, list}, unicode]),
   append_defines(Def),
   cl(T);
 cl(["-h"|_]) ->
diff --git a/lib/dialyzer/src/dialyzer_contracts.erl b/lib/dialyzer/src/dialyzer_contracts.erl
index b554ebc2cc..e72c1aecfc 100644
--- a/lib/dialyzer/src/dialyzer_contracts.erl
+++ b/lib/dialyzer/src/dialyzer_contracts.erl
@@ -555,6 +555,9 @@ from_form_with_check(Form, ExpTypes, MFA, RecordTable, VarTable, Cache) ->
   Site = {spec, MFA},
   C1 = erl_types:t_check_record_fields(Form, ExpTypes, Site, RecordTable,
                                        VarTable, Cache),
+  %% The check costs some time, and with the assumption that contracts
+  %% are not very deep, it does not add anything.
+  %% erl_types:t_from_form_check_remote(Form, ExpTypes, MFA, RecordTable),
   erl_types:t_from_form(Form, ExpTypes, Site, RecordTable, VarTable, C1).
 
 constraints_to_dict(Constrs, MFA, RecDict, ExpTypes, RecordTable,
@@ -840,7 +843,7 @@ is_remote_types_related(Contract, CSig, Sig, MFA, RecDict) ->
 
 t_from_forms_without_remote([{FType, []}], MFA, RecDict) ->
   Site = {spec, MFA},
-  {Type1, _} = erl_types:t_from_form_without_remote(FType, Site, RecDict),
+  Type1 = erl_types:t_from_form_without_remote(FType, Site, RecDict),
   {ok, erl_types:subst_all_vars_to_any(Type1)};
 t_from_forms_without_remote([{_FType, _Constrs}], _MFA, _RecDict) ->
   %% 'When' constraints
diff --git a/lib/dialyzer/src/dialyzer_gui_wx.erl b/lib/dialyzer/src/dialyzer_gui_wx.erl
index 538327d4d1..b8414b7d8b 100644
--- a/lib/dialyzer/src/dialyzer_gui_wx.erl
+++ b/lib/dialyzer/src/dialyzer_gui_wx.erl
@@ -475,7 +475,7 @@ gui_loop(#gui_state{backend_pid = BackendPid, doc_plt = DocPlt,
       gui_loop(State);
     {BackendPid, ext_types, ExtTypes} ->
       Map = fun({M,F,A}) -> io_lib:format("~tp:~tp/~p",[M,F,A]) end,
-      ExtTypeString = string:join(lists:map(Map, ExtTypes), "\n"),
+      ExtTypeString = lists:join("\n", lists:map(Map, ExtTypes)),
       Msg = io_lib:format("The following remote types are being used "
 			  "but information about them is not available.\n"
 			  "The analysis might get more precise by including "
@@ -638,7 +638,7 @@ output_sms(#gui_state{frame = Frame}, Title, Message, Type) ->
 
 free_editor(#gui_state{gui = Wx, frame = Frame}, Title, Contents0) ->
   Contents = lists:flatten(Contents0),
-  Tokens = string:tokens(Contents, "\n"),
+  Tokens = string:lexemes(Contents, "\n"),
   NofLines = length(Tokens),
   LongestLine = lists:max([length(X) || X <- Tokens]),
   Height0 = NofLines * 25 + 80,
@@ -1093,7 +1093,7 @@ macro_loop(Options, Win, Box, MacroText, TermText, Frame) ->
 	    Fun = 
 	      fun(X) ->
 		  Val = wxControlWithItems:getString(Box,X),
-		  [MacroName|_] = re:split(Val, " ", [{return, list}]),
+		  [MacroName|_] = re:split(Val, " ", [{return, list}, unicode]),
 		  list_to_atom(MacroName)
 	      end,
 	    Delete = [Fun(X) || X <- List],
diff --git a/lib/dialyzer/src/dialyzer_plt.erl b/lib/dialyzer/src/dialyzer_plt.erl
index 0fd99bbc04..95c8b5ebce 100644
--- a/lib/dialyzer/src/dialyzer_plt.erl
+++ b/lib/dialyzer/src/dialyzer_plt.erl
@@ -772,12 +772,16 @@ tab_is_disj(K1, T1, T2) ->
   end.
 
 merge_tables(T1, T2) ->
-  ets:safe_fixtable(T1, true),
   tab_merge(ets:first(T1), T1, T2).
 
 tab_merge('$end_of_table', T1, T2) ->
-  true = ets:delete(T1),
-  T2;
+  case ets:first(T1) of % no safe_fixtable()...
+    '$end_of_table' ->
+      true = ets:delete(T1),
+      T2;
+    Key ->
+      tab_merge(Key, T1, T2)
+  end;
 tab_merge(K1, T1, T2) ->
   Vs = ets:lookup(T1, K1),
   NextK1 = ets:next(T1, K1),
diff --git a/lib/dialyzer/src/dialyzer_races.erl b/lib/dialyzer/src/dialyzer_races.erl
index 7fe64c3e11..7602faa21d 100644
--- a/lib/dialyzer/src/dialyzer_races.erl
+++ b/lib/dialyzer/src/dialyzer_races.erl
@@ -1270,8 +1270,8 @@ filter_named_tables(NamesList) ->
     [] -> [];
     [Head|Tail] ->
       NewHead =
-        case string:rstr(Head, "()") of
-          0 -> [Head];
+        case string:find(Head, "()", trailing) of
+          nomatch -> [Head];
           _Other -> []
         end,
       NewHead ++ filter_named_tables(Tail)
@@ -1558,8 +1558,8 @@ any_args(StrList) ->
   case StrList of
     [] -> false;
     [Head|Tail] ->
-      case string:rstr(Head, "()") of
-        0 -> any_args(Tail);
+      case string:find(Head, "()", trailing) of
+        nomatch -> any_args(Tail);
         _Other -> true
       end
   end.
@@ -1765,10 +1765,8 @@ ets_list_args(MaybeList) ->
   end.
 
 ets_list_argtypes(ListStr) ->
-  ListStr1 = string:strip(ListStr, left, $[),
-  ListStr2 = string:strip(ListStr1, right, $]),
-  ListStr3 = string:strip(ListStr2, right, $.),
-  string:strip(ListStr3, right, $,).
+  ListStr1 = string:trim(ListStr, leading, "$["),
+  string:trim(ListStr1, trailing, "$]$.$,").
 
 ets_tuple_args(MaybeTuple) ->
   case is_tuple(MaybeTuple) of
@@ -1810,7 +1808,7 @@ ets_tuple_argtypes2_helper(TupleStr, ElemStr, NestingLevel) ->
             {[H|ElemStr], NestingLevel, false}
         end,
       case Return of
-        true -> string:tokens(NewElemStr, " |");
+        true -> string:lexemes(NewElemStr, " |");
         false ->
           ets_tuple_argtypes2_helper(T, NewElemStr, NewNestingLevel)
       end
@@ -1889,44 +1887,44 @@ format_args_2(StrArgList, Call) ->
   case Call of
     whereis ->
       lists_key_replace(2, StrArgList,
-	string:tokens(lists:nth(2, StrArgList), " |"));
+	string:lexemes(lists:nth(2, StrArgList), " |"));
     register ->
       lists_key_replace(2, StrArgList,
-	string:tokens(lists:nth(2, StrArgList), " |"));
+	string:lexemes(lists:nth(2, StrArgList), " |"));
     unregister ->
       lists_key_replace(2, StrArgList,
-	string:tokens(lists:nth(2, StrArgList), " |"));
+	string:lexemes(lists:nth(2, StrArgList), " |"));
     ets_new ->
       StrArgList1 = lists_key_replace(2, StrArgList,
-	string:tokens(lists:nth(2, StrArgList), " |")),
+	string:lexemes(lists:nth(2, StrArgList), " |")),
       lists_key_replace(4, StrArgList1,
-        string:tokens(ets_list_argtypes(lists:nth(4, StrArgList1)), " |"));
+        string:lexemes(ets_list_argtypes(lists:nth(4, StrArgList1)), " |"));
     ets_lookup ->
       StrArgList1 = lists_key_replace(2, StrArgList,
-        string:tokens(lists:nth(2, StrArgList), " |")),
+        string:lexemes(lists:nth(2, StrArgList), " |")),
       lists_key_replace(4, StrArgList1,
-        string:tokens(lists:nth(4, StrArgList1), " |"));
+        string:lexemes(lists:nth(4, StrArgList1), " |"));
     ets_insert ->
       StrArgList1 = lists_key_replace(2, StrArgList,
-        string:tokens(lists:nth(2, StrArgList), " |")),
+        string:lexemes(lists:nth(2, StrArgList), " |")),
       lists_key_replace(4, StrArgList1,
         ets_tuple_argtypes2(
         ets_tuple_argtypes1(lists:nth(4, StrArgList1), [], [], 0),
         []));
     mnesia_dirty_read1 ->
       lists_key_replace(2, StrArgList,
-        [mnesia_tuple_argtypes(T) || T <- string:tokens(
+        [mnesia_tuple_argtypes(T) || T <- string:lexemes(
         lists:nth(2, StrArgList), " |")]);
     mnesia_dirty_read2 ->
       lists_key_replace(2, StrArgList,
-        string:tokens(lists:nth(2, StrArgList), " |"));
+        string:lexemes(lists:nth(2, StrArgList), " |"));
     mnesia_dirty_write1 ->
       lists_key_replace(2, StrArgList,
-        [mnesia_record_tab(R) || R <- string:tokens(
+        [mnesia_record_tab(R) || R <- string:lexemes(
         lists:nth(2, StrArgList), " |")]);
     mnesia_dirty_write2 ->
       lists_key_replace(2, StrArgList,
-        string:tokens(lists:nth(2, StrArgList), " |"));
+        string:lexemes(lists:nth(2, StrArgList), " |"));
     function_call -> StrArgList
   end.
 
@@ -1943,18 +1941,16 @@ format_type(Type, State) ->
   erl_types:t_to_string(Type, R).
 
 mnesia_record_tab(RecordStr) ->
-  case string:str(RecordStr, "#") =:= 1 of
-    true ->
-      "'" ++
-        string:sub_string(RecordStr, 2, string:str(RecordStr, "{") - 1) ++
-        "'";
-    false -> RecordStr
+  case erl_scan:string(RecordStr) of
+    {ok, [{'#', _}, {atom, _, Name}|_], _} ->
+      io_lib:write_string(atom_to_list(Name), $');
+    _ -> RecordStr
   end.
 
 mnesia_tuple_argtypes(TupleStr) ->
-  TupleStr1 = string:strip(TupleStr, left, ${),
-  [TupleStr2|_T] = string:tokens(TupleStr1, " ,"),
-  lists:flatten(string:tokens(TupleStr2, " |")).
+  TupleStr1 = string:trim(TupleStr, leading, "${"),
+  [TupleStr2|_T] = string:lexemes(TupleStr1, " ,"),
+  lists:flatten(string:lexemes(TupleStr2, " |")).
 
 -spec race_var_map(var_to_map1(), var_to_map2(), dict:dict(), op()) ->
         dict:dict().
@@ -2237,7 +2233,7 @@ var_type_analysis(FunDefArgs, FunCallTypes, WarnVarArgs, RaceWarnTag,
       case lists_key_member_lists(Vars, FunVarArgs) of
         0 -> [Vars, WVA2, WVA3, WVA4];
         N when is_integer(N) ->
-          NewWVA2 = string:tokens(lists:nth(N + 1, FunVarArgs), " |"),
+          NewWVA2 = string:lexemes(lists:nth(N + 1, FunVarArgs), " |"),
           [Vars, NewWVA2, WVA3, WVA4]
       end;
     ?WARN_WHEREIS_UNREGISTER ->
@@ -2246,7 +2242,7 @@ var_type_analysis(FunDefArgs, FunCallTypes, WarnVarArgs, RaceWarnTag,
       case lists_key_member_lists(Vars, FunVarArgs) of
         0 -> [Vars, WVA2];
         N when is_integer(N) ->
-          NewWVA2 = string:tokens(lists:nth(N + 1, FunVarArgs), " |"),
+          NewWVA2 = string:lexemes(lists:nth(N + 1, FunVarArgs), " |"),
           [Vars, NewWVA2]
       end;
     ?WARN_ETS_LOOKUP_INSERT ->
@@ -2256,7 +2252,7 @@ var_type_analysis(FunDefArgs, FunCallTypes, WarnVarArgs, RaceWarnTag,
         case lists_key_member_lists(Vars1, FunVarArgs) of
           0 -> [Vars1, WVA2];
           N1 when is_integer(N1) ->
-            NewWVA2 = string:tokens(lists:nth(N1 + 1, FunVarArgs), " |"),
+            NewWVA2 = string:lexemes(lists:nth(N1 + 1, FunVarArgs), " |"),
             [Vars1, NewWVA2]
         end,
       Vars2 =
@@ -2286,10 +2282,10 @@ var_type_analysis(FunDefArgs, FunCallTypes, WarnVarArgs, RaceWarnTag,
           NewWVA2 =
             case Arity of
               1 ->
-                [mnesia_record_tab(R) || R <- string:tokens(
+                [mnesia_record_tab(R) || R <- string:lexemes(
                   lists:nth(2, FunVarArgs), " |")];
               2 ->
-                string:tokens(lists:nth(N + 1, FunVarArgs), " |")
+                string:lexemes(lists:nth(N + 1, FunVarArgs), " |")
             end,
           [Vars, NewWVA2|T]
       end
diff --git a/lib/dialyzer/src/dialyzer_utils.erl b/lib/dialyzer/src/dialyzer_utils.erl
index 6e501f32b2..abd89034f3 100644
--- a/lib/dialyzer/src/dialyzer_utils.erl
+++ b/lib/dialyzer/src/dialyzer_utils.erl
@@ -244,9 +244,12 @@ process_record_remote_types(CServer) ->
                 {record, Name} ->
                   FieldFun =
                     fun({Arity, Fields}, C4) ->
-                        Site = {record, {Module, Name, Arity}},
+                        MRA = {Module, Name, Arity},
+                        Site = {record, MRA},
                         {Fields1, C7} =
                           lists:mapfoldl(fun({FieldName, Field, _}, C5) ->
+                                             check_remote(Field, ExpTypes,
+                                                          MRA, RecordTable),
                                              {FieldT, C6} =
                                                erl_types:t_from_form
                                                  (Field, ExpTypes, Site,
@@ -260,18 +263,12 @@ process_record_remote_types(CServer) ->
                   {FieldsList, C3} =
                     lists:mapfoldl(FieldFun, C2, orddict:to_list(Fields)),
                   {{Key, {FileLine, orddict:from_list(FieldsList)}}, C3};
-                {type, Name, NArgs} ->
+                {_TypeOrOpaque, Name, NArgs} ->
                   %% Make sure warnings about unknown types are output
                   %% also for types unused by specs.
-                  Site = {type, {Module, Name, NArgs}},
-                  L = erl_anno:new(0),
-                  Args = lists:duplicate(NArgs, {var, L, '_'}),
-                  UserType = {user_type, L, Name, Args},
-                  {_NewType, C3} =
-                    erl_types:t_from_form(UserType, ExpTypes, Site,
-                                          RecordTable, VarTable, C2),
-                  {{Key, Value}, C3};
-                {opaque, _Name, _NArgs} ->
+                  MTA = {Module, Name, NArgs},
+                  {{_Module, _FileLine, Form, _ArgNames}, _Type} = Value,
+                  check_remote(Form, ExpTypes, MTA, RecordTable),
                   {{Key, Value}, C2}
               end
           end,
@@ -372,6 +369,9 @@ msg_with_position(Fun, FileLine) ->
       throw({error, NewMsg})
   end.
 
+check_remote(Form, ExpTypes, What, RecordTable) ->
+  erl_types:t_from_form_check_remote(Form, ExpTypes, What, RecordTable).
+
 -spec merge_types(codeserver(), dialyzer_plt:plt()) -> codeserver().
 
 merge_types(CServer, Plt) ->
diff --git a/lib/dialyzer/src/typer.erl b/lib/dialyzer/src/typer.erl
index bf5484e5f6..16b9c8a94a 100644
--- a/lib/dialyzer/src/typer.erl
+++ b/lib/dialyzer/src/typer.erl
@@ -74,7 +74,8 @@
 -spec start() -> no_return().
 
 start() ->
-_ = io:setopts(standard_error, [{encoding,unicode}]),
+  _ = io:setopts(standard_error, [{encoding,unicode}]),
+  _ = io:setopts([{encoding,unicode}]),
   {Args, Analysis} = process_cl_args(),
   %% io:format("Args: ~p\n", [Args]),
   %% io:format("Analysis: ~p\n", [Analysis]),
@@ -484,12 +485,12 @@ write_typed_file(File, Info) ->
 
 write_typed_file(File, Info, NewFileName) ->
   {ok, Binary} = file:read_file(File),
-  Chars = binary_to_list(Binary),
+  Chars = unicode:characters_to_list(Binary),
   write_typed_file(Chars, NewFileName, Info, 1, []),
   io:format("             Saved as: ~tp\n", [NewFileName]).
 
 write_typed_file(Chars, File, #info{functions = []}, _LNo, _Acc) ->
-  ok = file:write_file(File, list_to_binary(Chars), [append]);
+  ok = file:write_file(File, unicode:characters_to_binary(Chars), [append]);
 write_typed_file([Ch|Chs] = Chars, File, Info, LineNo, Acc) ->
   [{Line,F,A}|RestFuncs] = Info#info.functions,
   case Line of
@@ -519,7 +520,7 @@ write_typed_file([Ch|Chs] = Chars, File, Info, LineNo, Acc) ->
 raw_write(F, A, Info, File, Content) ->
   TypeInfo = get_type_string(F, A, Info, file),
   ContentList = lists:reverse(Content) ++ TypeInfo ++ "\n",
-  ContentBin = list_to_binary(ContentList),
+  ContentBin = unicode:characters_to_binary(ContentList),
   file:write_file(File, ContentBin, [append]).
 
 get_type_string(F, A, Info, Mode) ->
@@ -608,7 +609,7 @@ cl(["-D"++Def|Opts]) ->
   case Def of
     "" -> fatal_error("no variable name specified after -D");
     _ ->
-      DefPair = process_def_list(re:split(Def, "=", [{return, list}])),
+      DefPair = process_def_list(re:split(Def, "=", [{return, list}, unicode])),
       {{def, DefPair}, Opts}
   end;
 cl(["-I",Dir|Opts]) -> {{inc, Dir}, Opts};
@@ -697,7 +698,7 @@ get_all_files(#args{files = Fs, files_r = Ds}) ->
 test_erl_file_exclude_ann(File) ->
   case is_erl_file(File) of
     true -> %% Exclude files ending with ".ann.erl"
-      case re:run(File, "[\.]ann[\.]erl$") of
+      case re:run(File, "[\.]ann[\.]erl$", [unicode]) of
 	{match, _} -> false;
 	nomatch -> true
       end;
diff --git a/lib/dialyzer/test/behaviour_SUITE_data/results/gen_server_incorrect_args b/lib/dialyzer/test/behaviour_SUITE_data/results/gen_server_incorrect_args
index 1eb8cd455b..1be0ce0d8c 100644
--- a/lib/dialyzer/test/behaviour_SUITE_data/results/gen_server_incorrect_args
+++ b/lib/dialyzer/test/behaviour_SUITE_data/results/gen_server_incorrect_args
@@ -1,5 +1,5 @@
 
 gen_server_incorrect_args.erl:3: Undefined callback function handle_cast/2 (behaviour gen_server)
 gen_server_incorrect_args.erl:3: Undefined callback function init/1 (behaviour gen_server)
-gen_server_incorrect_args.erl:7: The inferred return type of handle_call/3 ({'no'} | {'ok'}) has nothing in common with {'noreply',_} | {'noreply',_,'hibernate' | 'infinity' | non_neg_integer()} | {'reply',_,_} | {'stop',_,_} | {'reply',_,_,'hibernate' | 'infinity' | non_neg_integer()} | {'stop',_,_,_}, which is the expected return type for the callback of the gen_server behaviour
+gen_server_incorrect_args.erl:7: The inferred return type of handle_call/3 ({'no'} | {'ok'}) has nothing in common with {'noreply',_} | {'noreply',_,'hibernate' | 'infinity' | non_neg_integer() | {'continue',_}} | {'reply',_,_} | {'stop',_,_} | {'reply',_,_,'hibernate' | 'infinity' | non_neg_integer() | {'continue',_}} | {'stop',_,_,_}, which is the expected return type for the callback of the gen_server behaviour
 gen_server_incorrect_args.erl:7: The inferred type for the 2nd argument of handle_call/3 ('boo' | 'foo') is not a supertype of {pid(),_}, which is expected type for this argument in the callback of the gen_server behaviour
diff --git a/lib/dialyzer/test/dialyzer_common.erl b/lib/dialyzer/test/dialyzer_common.erl
index 48083a2731..1a8403f486 100644
--- a/lib/dialyzer/test/dialyzer_common.erl
+++ b/lib/dialyzer/test/dialyzer_common.erl
@@ -221,13 +221,9 @@ get_suites(Dir) ->
     end.
 
 suffix(String, Suffix) ->
-    case string:rstr(String, Suffix) of
-	0 -> no;
-	Index ->
-	    case string:substr(String, Index) =:= Suffix of
-		true -> {yes, string:sub_string(String,1,Index-1)};
-		false -> no
-	    end
+    case string:split(String, Suffix, trailing) of
+	[Prefix,[]] -> {yes, Prefix};
+        _ -> no
     end.
 
 -spec create_suite(string()) -> 'ok'.
diff --git a/lib/dialyzer/test/map_SUITE_data/results/loop b/lib/dialyzer/test/map_SUITE_data/results/loop
new file mode 100644
index 0000000000..2e956a5709
--- /dev/null
+++ b/lib/dialyzer/test/map_SUITE_data/results/loop
@@ -0,0 +1,4 @@
+
+loop.erl:63: The call loop:start_timer(#loop{state::'idle' | 'waiting',queues::#{'category1'=>#queue{limit::non_neg_integer(),buffer::[any()]}, 'category2'=>#queue{limit::non_neg_integer(),buffer::[any()]}},counters::#{'counter1':=10, 2:=10}}) does not have a term of type #loop{state::'idle' | 'waiting',timer::timer:tref(),queues::#{'category1'=>#queue{limit::non_neg_integer(),buffer::[any()]}, 'category2'=>#queue{limit::non_neg_integer(),buffer::[any()]}},counters::#{'counter1'=>non_neg_integer(), 2=>non_neg_integer()}} (with opaque subterms) as 1st argument
+loop.erl:67: Function wait/1 has no local return
+loop.erl:85: Record construction #loop{state::'idle' | 'waiting',timer::{'error',_} | {'ok',timer:tref()},queues::#{'category1'=>#queue{limit::non_neg_integer(),buffer::[any()]}, 'category2'=>#queue{limit::non_neg_integer(),buffer::[any()]}},counters::#{'counter1'=>non_neg_integer(), 2=>non_neg_integer()}} violates the declared type of field timer::'undefined' | timer:tref()
diff --git a/lib/dialyzer/test/map_SUITE_data/results/map_galore b/lib/dialyzer/test/map_SUITE_data/results/map_galore
index c34ba5cf30..9a140de255 100644
--- a/lib/dialyzer/test/map_SUITE_data/results/map_galore
+++ b/lib/dialyzer/test/map_SUITE_data/results/map_galore
@@ -1,11 +1,11 @@
 
 map_galore.erl:1000: A key of type 42 cannot exist in a map of type #{1:='a', 2:='b', 4:='d', 5:='e', float()=>'c' | 'v'}
-map_galore.erl:1080: A key of type 'nonexisting' cannot exist in a map of type #{#{'map':='key', 'one':='small'}:=[32 | 49 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'second':='small'}:=[32 | 50 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'third':='small'}:=[32 | 51 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], 10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 16:='a6', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 26:='b6', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 36:=[54 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]} | #{10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], 'k16'=>'a6', 'k26'=>'b6', 'k36'=>[54 | 99,...], 16=>'a6', 26=>'b6', 36=>[54 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]}=>[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 100 | 101,...]}=>atom() | [1..255,...]}
-map_galore.erl:1082: A key of type 42 cannot exist in a map of type #{#{'map':='key', 'one':='small'}:=[32 | 49 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'second':='small'}:=[32 | 50 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'third':='small'}:=[32 | 51 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], 10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 16:='a6', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 26:='b6', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 36:=[54 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]} | #{10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], 'k16'=>'a6', 'k26'=>'b6', 'k36'=>[54 | 99,...], 16=>'a6', 26=>'b6', 36=>[54 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]}=>[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 100 | 101,...]}=>atom() | [1..255,...]}
-map_galore.erl:1140: The call map_galore:map_guard_sequence_1(#{'seq':=6, 'val':=[101,...]}) will never return since it differs in the 1st argument from the success typing arguments: (#{'seq':=1 | 2 | 3 | 4 | 5, 'val':=[97 | 98 | 99 | 100 | 101,...], #{'map':='key', 'one':='small'}=>[32 | 49 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'second':='small'}=>[32 | 50 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'third':='small'}=>[32 | 51 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[any(),...]} | #{10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 27:='b7', 28:='b8', 29:='b9', 30:=[any(),...], 31:=[any(),...], 32:=[any(),...], 33:=[any(),...], 34:=[any(),...], 35:=[any(),...], 37:=[any(),...], 38:=[any(),...], 39:=[any(),...], 'k16'=>'a6', 'k26'=>'b6', 'k36'=>[any(),...], 16=>'a6', 26=>'b6', 36=>[any(),...], <<_:16>> | [any(),...] | {_}=>[any(),...]}=>atom() | [1..255,...]})
-map_galore.erl:1141: The call map_galore:map_guard_sequence_2(#{'b':=5}) will never return since it differs in the 1st argument from the success typing arguments: (#{'a':='gg' | 'kk' | 'sc' | 3 | 4, 'b'=>'other' | 3 | 4 | 5, 'c'=>'sc2', #{'map':='key', 'one':='small'}=>[32 | 49 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'second':='small'}=>[32 | 50 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'third':='small'}=>[32 | 51 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[any(),...]} | #{10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 27:='b7', 28:='b8', 29:='b9', 30:=[any(),...], 31:=[any(),...], 32:=[any(),...], 33:=[any(),...], 34:=[any(),...], 35:=[any(),...], 37:=[any(),...], 38:=[any(),...], 39:=[any(),...], 'k16'=>'a6', 'k26'=>'b6', 'k36'=>[any(),...], 16=>'a6', 26=>'b6', 36=>[any(),...], <<_:16>> | [any(),...] | {_}=>[any(),...]}=>atom() | [1..255,...]})
-map_galore.erl:1209: The call map_galore:map_guard_sequence_1(#{'seq':=6, 'val':=[101,...], #{'map':='key', 'one':='small'}:=[32 | 49 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'second':='small'}:=[32 | 50 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'third':='small'}:=[32 | 51 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], 10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 16:='a6', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 26:='b6', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 36:=[54 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | 3,...]} | #{10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], 'k16'=>'a6', 'k26'=>'b6', 'k36'=>[54 | 99,...], 16=>'a6', 26=>'b6', 36=>[54 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]}=>[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 100 | 101,...]}=>atom() | [1..255,...]}) will never return since it differs in the 1st argument from the success typing arguments: (#{'seq':=1 | 2 | 3 | 4 | 5, 'val':=[97 | 98 | 99 | 100 | 101,...], #{'map':='key', 'one':='small'}=>[32 | 49 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'second':='small'}=>[32 | 50 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'third':='small'}=>[32 | 51 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[any(),...]} | #{10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 27:='b7', 28:='b8', 29:='b9', 30:=[any(),...], 31:=[any(),...], 32:=[any(),...], 33:=[any(),...], 34:=[any(),...], 35:=[any(),...], 37:=[any(),...], 38:=[any(),...], 39:=[any(),...], 'k16'=>'a6', 'k26'=>'b6', 'k36'=>[any(),...], 16=>'a6', 26=>'b6', 36=>[any(),...], <<_:16>> | [any(),...] | {_}=>[any(),...]}=>atom() | [1..255,...]})
-map_galore.erl:1210: The call map_galore:map_guard_sequence_2(#{'b':=5, #{'map':='key', 'one':='small'}:=[32 | 49 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'second':='small'}:=[32 | 50 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'third':='small'}:=[32 | 51 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], 10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 16:='a6', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 26:='b6', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 36:=[54 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | 3,...]} | #{10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], 'k16'=>'a6', 'k26'=>'b6', 'k36'=>[54 | 99,...], 16=>'a6', 26=>'b6', 36=>[54 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]}=>[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 100 | 101,...]}=>atom() | [1..255,...]}) will never return since it differs in the 1st argument from the success typing arguments: (#{'a':='gg' | 'kk' | 'sc' | 3 | 4, 'b'=>'other' | 3 | 4 | 5, 'c'=>'sc2', #{'map':='key', 'one':='small'}=>[32 | 49 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'second':='small'}=>[32 | 50 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], #{'map':='key', 'third':='small'}=>[32 | 51 | 97 | 101 | 107 | 108 | 109 | 112 | 115 | 121,...], 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[any(),...]} | #{10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 27:='b7', 28:='b8', 29:='b9', 30:=[any(),...], 31:=[any(),...], 32:=[any(),...], 33:=[any(),...], 34:=[any(),...], 35:=[any(),...], 37:=[any(),...], 38:=[any(),...], 39:=[any(),...], 'k16'=>'a6', 'k26'=>'b6', 'k36'=>[any(),...], 16=>'a6', 26=>'b6', 36=>[any(),...], <<_:16>> | [any(),...] | {_}=>[any(),...]}=>atom() | [1..255,...]})
+map_galore.erl:1080: A key of type 'nonexisting' cannot exist in a map of type #{10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 16:='a6', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 26:='b6', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 36:=[54 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]} | #{'k16'=>'a6', 'k26'=>'b6', 'k36'=>[54 | 99,...], 'map'=>'key', 'one'=>'small', 'second'=>'small', 'third'=>'small', 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]}=>[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 100 | 101,...]}=>atom() | [1..255,...]}
+map_galore.erl:1082: A key of type 42 cannot exist in a map of type #{10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 16:='a6', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 26:='b6', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 36:=[54 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]} | #{'k16'=>'a6', 'k26'=>'b6', 'k36'=>[54 | 99,...], 'map'=>'key', 'one'=>'small', 'second'=>'small', 'third'=>'small', 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]}=>[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 100 | 101,...]}=>atom() | [1..255,...]}
+map_galore.erl:1140: The call map_galore:map_guard_sequence_1(#{'seq':=6, 'val':=[101,...]}) will never return since it differs in the 1st argument from the success typing arguments: (#{'seq':=1 | 2 | 3 | 4 | 5, 'val':=[97 | 98 | 99 | 100 | 101,...], 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[any(),...]} | #{'k16'=>'a6', 'k26'=>'b6', 'k36'=>[any(),...], 'map'=>'key', 'one'=>'small', 'second'=>'small', 'third'=>'small', 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[any(),...], 31=>[any(),...], 32=>[any(),...], 33=>[any(),...], 34=>[any(),...], 35=>[any(),...], 36=>[any(),...], 37=>[any(),...], 38=>[any(),...], 39=>[any(),...], <<_:16>> | [any(),...] | {_}=>[any(),...]}=>atom() | [1..255,...]})
+map_galore.erl:1141: The call map_galore:map_guard_sequence_2(#{'b':=5}) will never return since it differs in the 1st argument from the success typing arguments: (#{'a':='gg' | 'kk' | 'sc' | 3 | 4, 'b'=>'other' | 3 | 4 | 5, 'c'=>'sc2', 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[any(),...]} | #{'k16'=>'a6', 'k26'=>'b6', 'k36'=>[any(),...], 'map'=>'key', 'one'=>'small', 'second'=>'small', 'third'=>'small', 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[any(),...], 31=>[any(),...], 32=>[any(),...], 33=>[any(),...], 34=>[any(),...], 35=>[any(),...], 36=>[any(),...], 37=>[any(),...], 38=>[any(),...], 39=>[any(),...], <<_:16>> | [any(),...] | {_}=>[any(),...]}=>atom() | [1..255,...]})
+map_galore.erl:1209: The call map_galore:map_guard_sequence_1(#{'seq':=6, 'val':=[101,...], 10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 16:='a6', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 26:='b6', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 36:=[54 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | 3,...]} | #{'k16'=>'a6', 'k26'=>'b6', 'k36'=>[54 | 99,...], 'map'=>'key', 'one'=>'small', 'second'=>'small', 'third'=>'small', 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]}=>[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 100 | 101,...]}=>atom() | [1..255,...]}) will never return since it differs in the 1st argument from the success typing arguments: (#{'seq':=1 | 2 | 3 | 4 | 5, 'val':=[97 | 98 | 99 | 100 | 101,...], 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[any(),...]} | #{'k16'=>'a6', 'k26'=>'b6', 'k36'=>[any(),...], 'map'=>'key', 'one'=>'small', 'second'=>'small', 'third'=>'small', 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[any(),...], 31=>[any(),...], 32=>[any(),...], 33=>[any(),...], 34=>[any(),...], 35=>[any(),...], 36=>[any(),...], 37=>[any(),...], 38=>[any(),...], 39=>[any(),...], <<_:16>> | [any(),...] | {_}=>[any(),...]}=>atom() | [1..255,...]})
+map_galore.erl:1210: The call map_galore:map_guard_sequence_2(#{'b':=5, 10:='a0', 11:='a1', 12:='a2', 13:='a3', 14:='a4', 15:='a5', 16:='a6', 17:='a7', 18:='a8', 19:='a9', 20:='b0', 21:='b1', 22:='b2', 23:='b3', 24:='b4', 25:='b5', 26:='b6', 27:='b7', 28:='b8', 29:='b9', 30:=[48 | 99,...], 31:=[49 | 99,...], 32:=[50 | 99,...], 33:=[51 | 99,...], 34:=[52 | 99,...], 35:=[53 | 99,...], 36:=[54 | 99,...], 37:=[55 | 99,...], 38:=[56 | 99,...], 39:=[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | 3,...]} | #{'k16'=>'a6', 'k26'=>'b6', 'k36'=>[54 | 99,...], 'map'=>'key', 'one'=>'small', 'second'=>'small', 'third'=>'small', 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | {[[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...],...]}=>[48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 100 | 101,...]}=>atom() | [1..255,...]}) will never return since it differs in the 1st argument from the success typing arguments: (#{'a':='gg' | 'kk' | 'sc' | 3 | 4, 'b'=>'other' | 3 | 4 | 5, 'c'=>'sc2', 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[48 | 99,...], 31=>[49 | 99,...], 32=>[50 | 99,...], 33=>[51 | 99,...], 34=>[52 | 99,...], 35=>[53 | 99,...], 36=>[54 | 99,...], 37=>[55 | 99,...], 38=>[56 | 99,...], 39=>[57 | 99,...], <<_:16>> | [48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57,...] | float() | {[any(),...]} | #{'k16'=>'a6', 'k26'=>'b6', 'k36'=>[any(),...], 'map'=>'key', 'one'=>'small', 'second'=>'small', 'third'=>'small', 10=>'a0', 11=>'a1', 12=>'a2', 13=>'a3', 14=>'a4', 15=>'a5', 16=>'a6', 17=>'a7', 18=>'a8', 19=>'a9', 20=>'b0', 21=>'b1', 22=>'b2', 23=>'b3', 24=>'b4', 25=>'b5', 26=>'b6', 27=>'b7', 28=>'b8', 29=>'b9', 30=>[any(),...], 31=>[any(),...], 32=>[any(),...], 33=>[any(),...], 34=>[any(),...], 35=>[any(),...], 36=>[any(),...], 37=>[any(),...], 38=>[any(),...], 39=>[any(),...], <<_:16>> | [any(),...] | {_}=>[any(),...]}=>atom() | [1..255,...]})
 map_galore.erl:1418: Fun application with arguments (#{'s':='none', 'v':='none'}) will never return since it differs in the 1st argument from the success typing arguments: (#{'s':='l' | 't' | 'v', 'v':='none' | <<_:16>> | [<<_:16>>,...] | {<<_:16>>,<<_:16>>}})
 map_galore.erl:1491: The test #{} =:= #{'a':=1} can never evaluate to 'true'
 map_galore.erl:1492: The test #{'a':=1} =:= #{} can never evaluate to 'true'
diff --git a/lib/dialyzer/test/map_SUITE_data/results/opaque_key b/lib/dialyzer/test/map_SUITE_data/results/opaque_key
index 2ae0e0c5c6..8d6379b5e0 100644
--- a/lib/dialyzer/test/map_SUITE_data/results/opaque_key
+++ b/lib/dialyzer/test/map_SUITE_data/results/opaque_key
@@ -1,4 +1,5 @@
 
+opaque_key_adt.erl:35: Invalid type specification for function opaque_key_adt:s2/0. The success typing is () -> #{3:='a'}
 opaque_key_adt.erl:41: Invalid type specification for function opaque_key_adt:s4/0. The success typing is () -> #{1:='a'}
 opaque_key_adt.erl:44: Invalid type specification for function opaque_key_adt:s5/0. The success typing is () -> #{2:=3}
 opaque_key_adt.erl:56: Invalid type specification for function opaque_key_adt:smt1/0. The success typing is () -> #{3:='a'}
diff --git a/lib/dialyzer/test/map_SUITE_data/src/loop.erl b/lib/dialyzer/test/map_SUITE_data/src/loop.erl
new file mode 100644
index 0000000000..c861052d9f
--- /dev/null
+++ b/lib/dialyzer/test/map_SUITE_data/src/loop.erl
@@ -0,0 +1,92 @@
+-module(loop).
+
+-export([timeout/2]).
+
+-export([idle/2, waiting/2]).
+
+-type request_category() :: category1 | category2.
+
+-type counter() :: counter1 | 2.
+
+-type counters() :: #{counter() => non_neg_integer()}.
+
+-record(queue, {limit  = 0  :: non_neg_integer(),
+                buffer = [] :: list()}).
+
+-type request_queues() :: #{request_category() => #queue{}}.
+
+-record(?MODULE,
+        {state    = idle                      :: idle | waiting,
+         timer    = undefined                 :: undefined | timer:tref(),
+         queues   = #{category1 => #queue{},
+                      category2 => #queue{}}  :: request_queues(),
+         counters = new_counters()            :: counters()}).
+-spec timeout(Ref, Timer :: timer:tref()) -> {noreply, Ref}.
+timeout(Ref, Timer) ->
+    handle_message(Ref, {timeout, Timer}).
+
+-type message() :: {reset, request_category()}
+                 | {timeout, timer:tref()}.
+
+-spec handle_message(Ref, Message :: message()) ->
+                            {reply, boolean(), Ref} | {noreply, Ref}.
+handle_message(Ref, Msg) ->
+    MV = #?MODULE{state = State} = get(mv),
+    case apply(?MODULE, State, [Msg, MV]) of
+        {reply, Result, NewMV} ->
+            put(mv, NewMV),
+            {reply, Result, Ref};
+        {noreply, NewMV} ->
+            put(mv, NewMV),
+            {noreply, Ref}
+    end.
+
+-spec idle(Message :: message(), #?MODULE{}) ->
+                  {reply, boolean(), #?MODULE{}} | {noreply, #?MODULE{}}.
+idle({reset, Category}, MV = #?MODULE{queues = Queues}) ->
+    case Queues of
+        #{Category := #queue{limit = 0}} ->
+            {reply, false, MV};
+        _ ->
+            wait(MV)
+    end;
+idle(_, MV) ->
+    {noreply, MV}.
+
+-spec waiting(Message :: message(), #?MODULE{}) ->
+                     {reply, boolean(), #?MODULE{}} | {noreply, #?MODULE{}}.
+waiting({reset, _Category}, MV = #?MODULE{}) ->
+    NewMV = stop_timer(MV),
+    {noreply, NewMV#?MODULE{state  = idle}};
+waiting({timeout, Timer}, #?MODULE{timer = Timer} = MV) ->
+    %% The opaque warning is an effect of the call to timer:send_after().
+    {noreply, start_timer(MV#?MODULE{timer    = undefined,
+                                     counters = new_counters()})}.
+
+-spec wait(#?MODULE{}) -> {noreply, #?MODULE{}}.
+wait(MV) ->
+    {noreply, start_timer(MV#?MODULE{state = waiting})}.
+
+-spec stop_timer(#?MODULE{}) -> #?MODULE{}.
+stop_timer(MV) ->
+    case MV#?MODULE.timer of
+        undefined ->
+            MV;
+        Timer ->
+            timer:cancel(Timer),
+            MV#?MODULE{timer = undefined}
+    end.
+
+-spec start_timer(MV :: #?MODULE{}) -> #?MODULE{}.
+start_timer(MV) ->
+    case MV#?MODULE.timer of
+        undefined ->
+            %% Note: timer:send_after() returns {ok, TRef} | {error, _}.
+            MV#?MODULE{timer = timer:send_after(1000, ?MODULE)};
+        _Timer ->
+            start_timer(stop_timer(MV))
+    end.
+
+-spec new_counters() -> counters().
+new_counters() ->
+    #{counter1 => 10, 2 => 10}.
diff --git a/lib/dialyzer/test/map_SUITE_data/src/opaque_key/opaque_key_adt.erl b/lib/dialyzer/test/map_SUITE_data/src/opaque_key/opaque_key_adt.erl
index b98c713c6b..9228cfa413 100644
--- a/lib/dialyzer/test/map_SUITE_data/src/opaque_key/opaque_key_adt.erl
+++ b/lib/dialyzer/test/map_SUITE_data/src/opaque_key/opaque_key_adt.erl
@@ -33,7 +33,7 @@ s0() -> #{}.
 s1() -> #{3 => a}.
 
 -spec s2() -> s(atom() | 3).
-s2() -> #{3 => a}. %% Contract breakage (not found)
+s2() -> #{3 => a}. %% Contract breakage
 
 -spec s3() -> s(atom() | 3).
 s3() -> #{3 => 5, a => 6, 7 => 8}.
diff --git a/lib/dialyzer/test/options2_SUITE_data/results/unused_unknown_type b/lib/dialyzer/test/options2_SUITE_data/results/unused_unknown_type
index 110d896c76..74d2ac33ad 100644
--- a/lib/dialyzer/test/options2_SUITE_data/results/unused_unknown_type
+++ b/lib/dialyzer/test/options2_SUITE_data/results/unused_unknown_type
@@ -1,2 +1,2 @@
 
-:0: Unknown type unknown:type1/0:0: Unknown type unknown:type2/0:0: Unknown type unknown:type3/0
\ No newline at end of file
+:0: Unknown type foo:bar/0:0: Unknown type ofoo:obar/0:0: Unknown type owww:y/0:0: Unknown type rfoo:rbar/0:0: Unknown type unknown:type1/0:0: Unknown type unknown:type2/0:0: Unknown type unknown:type3/0:0: Unknown type xxx:y/0:0: Unknown type yyy:x/0:0: Unknown type zzz:arg/1:0: Unknown type zzz:x/0
\ No newline at end of file
diff --git a/lib/dialyzer/test/options2_SUITE_data/src/unused_unknown_type.erl b/lib/dialyzer/test/options2_SUITE_data/src/unused_unknown_type.erl
index 90df7d528a..e6f9d2392c 100644
--- a/lib/dialyzer/test/options2_SUITE_data/src/unused_unknown_type.erl
+++ b/lib/dialyzer/test/options2_SUITE_data/src/unused_unknown_type.erl
@@ -1,10 +1,40 @@
 -module(unused_unknown_type).
 
+-export([t/0]).
+
 -export_type([unused/0]).
 
+-export_type([wide/0, deep/0]).
+-export_type([owide/0, odeep/0]).
+-export_type([arg/0, rargs1/0, rargs2/0]).
+
 -type unused() :: unknown:type1().
 
--record(unused_rec, {a :: unknown:type2()}).
+-record(unused_rec,
+        {a :: unknown:type2(),
+         b :: {{{{{{{{{{{{{{{{{{{{rfoo:rbar()}}}}}}}}}}}}}}}}}}}}}).
 
 -record(rec, {a}).
 -type unused_rec() :: #rec{a :: unknown:type3()}.
+
+-type wide() :: {a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,xxx:y()}.
+-type owide() :: {a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,owww:y()}.
+
+%% Deeper than the hardcoded limit in erl_types.erl of 16.
+-type deep() :: {{{{{{{{{{{{{{{{{{{{foo:bar()}}}}}}}}}}}}}}}}}}}}.
+-type odeep() :: {{{{{{{{{{{{{{{{{{{{ofoo:obar()}}}}}}}}}}}}}}}}}}}}.
+
+-type arg1(A) :: [A].
+-type arg() :: arg1({a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,yyy:x()}).
+
+%% No warning about www:x/0 because parameters are currently not
+%% handled if the parameterized type cannot be found.
+-type rargs1() :: zzz:arg({a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,www:x()}).
+
+-type rargs2() :: dict:dict({a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,zzz:x()},
+                            any()).
+
+%% No warning. The check is commented out as it takes too long.
+-spec t() -> 'a' | {{{{{{{{{{{{{{{{{{{{sfoo:sbar()}}}}}}}}}}}}}}}}}}}}.
+t() ->
+    a.
diff --git a/lib/dialyzer/vsn.mk b/lib/dialyzer/vsn.mk
index 866a82ee3e..d130b14fec 100644
--- a/lib/dialyzer/vsn.mk
+++ b/lib/dialyzer/vsn.mk
@@ -1 +1 @@
-DIALYZER_VSN = 3.2.1
+DIALYZER_VSN = 3.2.2
diff --git a/lib/diameter/doc/src/diameter.xml b/lib/diameter/doc/src/diameter.xml
index 3ad24257a5..6b84b22eb5 100644
--- a/lib/diameter/doc/src/diameter.xml
+++ b/lib/diameter/doc/src/diameter.xml
@@ -397,10 +397,10 @@ from the peer offers it.</p>
 Note that each tuple communicates one or more AVP values.
 It is an error to specify duplicate tuples.</p>
 
-<marker id="evaluable"/>
+<marker id="eval"/>
 </item>
 
-<tag><c>evaluable() = {M,F,A} | fun() | [evaluable() | A]</c></tag>
+<tag><c>eval() = {M,F,A} | fun() | [eval() | A]</c></tag>
 <item>
 <p>
 An expression that can be evaluated as a function in the following
@@ -418,7 +418,7 @@ eval(F) ->
 </pre>
 
 <p>
-Applying an <c>&evaluable;</c>
+Applying an <c>&eval;</c>
 <c>E</c> to an argument list <c>A</c>
 is meant in the sense of <c>eval([E|A])</c>.</p>
 
@@ -484,11 +484,11 @@ Matches only those peers whose Origin-Realm has the
 specified value, or all peers if the atom <c>any</c>.</p>
 </item>
 
-<tag><c>{eval, &evaluable;}</c></tag>
+<tag><c>{eval, &eval;}</c></tag>
 <item>
 <p>
 Matches only those peers for which the specified
-<c>&evaluable;</c> returns
+<c>&eval;</c> returns
 <c>true</c> when applied to the connection's <c>diameter_caps</c>
 record.
 Any other return value or exception is equivalent to <c>false</c>.</p>
@@ -650,7 +650,7 @@ Result = ResultCode | {capabilities_cb, CB, ResultCode|discard}
 Caps = #diameter_caps{}
 Pkt  = #diameter_packet{}
 ResultCode = integer()
-CB = &evaluable;
+CB = &eval;
 </pre>
 
 <p>
@@ -799,7 +799,7 @@ be matched by corresponding &capability; configuration, of
 
 <tag>
 <marker id="decode_format"/>
-<c>{decode_format, record | list | map | false}</c></tag>
+<c>{decode_format, record | list | map | none}</c></tag>
 <item>
 <p>
 The format of decoded messages and grouped AVPs in the <c>msg</c> field
@@ -808,10 +808,10 @@ records respectively.
 If <c>record</c> then a record whose definition is generated from the
 dictionary file in question.
 If <c>list</c> or <c>map</c> then a <c>[Name | Avps]</c> pair where
-<c>Avps</c> is either a list of AVP name/values pairs or a map keyed on
+<c>Avps</c> is a list of AVP name/values pairs or a map keyed on
 AVP names respectively.
-If <c>false</c> then the representation is omitted and <c>msg</c> and
-<c>value</c> fields are set to <c>false</c>.
+If <c>none</c> then the atom-value message name, or <c>undefined</c>
+for a Grouped AVP.
 See also &codec_message;.</p>
 
 <p>
@@ -826,24 +826,11 @@ field of diameter_packet records independently of
 
 </item>
 
-<tag>
-<marker id="incoming_maxlen"/><c>{incoming_maxlen, 0..16777215}</c></tag>
-<item>
-<p>
-Bound on the expected size of incoming Diameter messages.
-Messages larger than the specified number of bytes are discarded.</p>
-
-<p>
-Defaults to <c>16777215</c>, the maximum value of the 24-bit Message
-Length field in a Diameter Header.</p>
-
-</item>
-
 <tag><c>{restrict_connections, false
                              | node
                              | nodes
                              | [node()]
-                             | evaluable()}</c></tag>
+                             | eval()}</c></tag>
 <item>
 <p>
 The degree to which the service allows multiple transport
@@ -854,7 +841,7 @@ at capabilities exchange.</p>
 If <c>[node()]</c> then a connection is rejected if another already
 exists on any of the specified nodes.
 Types <c>false</c>, <c>node</c>, <c>nodes</c> and
-&evaluable; are equivalent to
+&eval; are equivalent to
 <c>[]</c>, <c>[node()]</c>, <c>[node()|nodes()]</c> and the
 evaluated value respectively, evaluation of each expression taking
 place whenever a new connection is to be established.
@@ -869,7 +856,7 @@ by their own peer and watchdog state machines.</p>
 Defaults to <c>nodes</c>.</p>
 </item>
 
-<tag><c>{sequence, {H,N} | &evaluable;}</c></tag>
+<tag><c>{sequence, {H,N} | &eval;}</c></tag>
 <item>
 <p>
 A constant value <c>H</c> for the topmost <c>32-N</c> bits of
@@ -904,7 +891,7 @@ outgoing requests.</p>
 </warning>
 </item>
 
-<tag><c>{share_peers, boolean() | [node()] | evaluable()}</c></tag>
+<tag><c>{share_peers, boolean() | [node()] | eval()}</c></tag>
 <item>
 <p>
 Nodes to which peer connections established on the local
@@ -917,7 +904,7 @@ configured to use them: see <c>use_shared_peers</c> below.</p>
 If <c>false</c> then peers are not shared.
 If <c>[node()]</c> then peers are shared with the specified list of
 nodes.
-If <c>evaluable()</c> then peers are shared with the nodes returned
+If <c>eval()</c> then peers are shared with the nodes returned
 by the specified function, evaluated whenever a peer connection
 becomes available or a remote service requests information about local
 connections.
@@ -943,18 +930,6 @@ of a single Diameter node across multiple Erlang nodes.</p>
 </note>
 </item>
 
-<tag><c>{spawn_opt, [term()]}</c></tag>
-<item>
-<p>
-Options list passed to &spawn_opt; when spawning a process for an
-incoming Diameter request, unless the transport in question
-specifies another value.
-Options <c>monitor</c> and <c>link</c> are ignored.</p>
-
-<p>
-Defaults to the empty list.</p>
-</item>
-
 <tag>
 <marker id="strict_arities"/><c>{strict_arities, boolean()
                                                | encode
@@ -962,7 +937,8 @@ Defaults to the empty list.</p>
 <item>
 <p>
 Whether or not to require that the number of AVPs in a message or
-grouped AVP agree with those specified in the dictionary in question.
+grouped AVP agree with those specified in the dictionary in question
+when passing messages to &man_app; callbacks.
 If <c>true</c> then mismatches in an outgoing messages cause message
 encoding to fail, while mismatches in an incoming message are reported
 as 5005/5009 errors in the errors field of the diameter_packet record
@@ -987,49 +963,6 @@ of arity 1 as bare values, not wrapped in a list.</p>
 </item>
 
 <tag>
-<marker id="strict_mbit"/><c>{strict_mbit, boolean()}</c></tag>
-<item>
-<p>
-Whether or not to regard an AVP setting the M-bit as erroneous when
-the command grammar in question does not explicitly allow the AVP.
-If <c>true</c> then such AVPs are regarded as 5001 errors,
-DIAMETER_AVP_UNSUPPORTED.
-If <c>false</c> then the M-bit is ignored and policing
-it becomes the receiver's responsibility.</p>
-
-<p>
-Defaults to <c>true</c>.</p>
-
-<warning>
-<p>
-RFC 6733 is unclear about the semantics of the M-bit.
-One the one hand, the CCF specification in section 3.2 documents AVP
-in a command grammar as meaning <em>any</em> arbitrary AVP; on the
-other hand, 1.3.4 states that AVPs setting the M-bit cannot be added
-to an existing command: the modified command must instead be
-placed in a new Diameter application.</p>
-<p>
-The reason for the latter is presumably interoperability:
-allowing arbitrary AVPs setting the M-bit in a command makes its
-interpretation implementation-dependent, since there's no
-guarantee that all implementations will understand the same set of
-arbitrary AVPs in the context of a given command.
-However, interpreting <c>AVP</c> in a command grammar as any
-AVP, regardless of M-bit, renders 1.3.4 meaningless, since the receiver
-can simply ignore any AVP it thinks isn't relevant, regardless of the
-sender's intent.</p>
-<p>
-Beware of confusing mandatory in the sense of the M-bit with mandatory
-in the sense of the command grammar.
-The former is a semantic requirement: that the receiver understand the
-semantics of the AVP in the context in question.
-The latter is a syntactic requirement: whether or not the AVP must
-occur in the message in question.</p>
-</warning>
-
-</item>
-
-<tag>
 <marker id="string_decode"/><c>{string_decode, boolean()}</c></tag>
 <item>
 <p>
@@ -1073,7 +1006,7 @@ omitted counters are not returned by &service_info;.</p>
 
 </item>
 
-<tag><c>{use_shared_peers, boolean() | [node()] | evaluable()}</c></tag>
+<tag><c>{use_shared_peers, boolean() | [node()] | eval()}</c></tag>
 <item>
 <p>
 Nodes from which communicated peers are made available in
@@ -1083,7 +1016,7 @@ the remote candidates list of &app_pick_peer; callbacks.</p>
 If <c>false</c> then remote peers are not used.
 If <c>[node()]</c> then only peers from the specified list of nodes
 are used.
-If <c>evaluable()</c> then only peers returned by the specified
+If <c>eval()</c> then only peers returned by the specified
 function are used, evaluated whenever a remote service communicates
 information about an available peer connection.
 The value <c>true</c> is equivalent to <c>fun &nodes;</c>.
@@ -1108,6 +1041,15 @@ each node from which requests are sent.</p>
 </warning>
 </item>
 
+<tag><c>&transport_opt;</c></tag>
+<item>
+<p>
+Any transport option except <c>applications</c> or
+<c>capabilities</c>.
+Used as defaults for transport configuration, values passed to
+&add_transport; overriding values configured on the service.</p>
+</item>
+
 </taglist>
 
 <marker id="transport_opt"/>
@@ -1141,6 +1083,37 @@ implies having to set matching *-Application-Id AVPs in a
 </item>
 
 <tag>
+<marker id="avp_dictionaries"/><c>{avp_dictionaries, [module()]}</c></tag>
+<item>
+<p>
+A list of alternate dictionary modules with which to encode/decode
+AVPs that are not defined by the dictionary of the application in
+question.
+At decode, such AVPs are represented as diameter_avp records in the
+<c>'AVP'</c> field of a decoded message or Grouped AVP, the first
+alternate that succeeds in decoding the AVP setting the record's value
+field.
+At encode, values in an <c>'AVP'</c> list can be passed as AVP
+name/value 2-tuples, and it is an encode error for no alternate to
+define the AVP of such a tuple.</p>
+
+<p>
+Defaults to the empty list.</p>
+
+<note>
+<p>
+The motivation for alternate dictionaries is RFC 7683, Diameter
+Overload Indication Conveyance (DOIC), which defines AVPs to
+be piggybacked onto existing application messages rather than defining
+an application of its own.
+The DOIC dictionary is provided by the diameter application, as module
+<c>diameter_gen_doic_rfc7683</c>, but alternate dictionaries can be
+used to encode/decode any set of AVPs not known to an application
+dictionary.</p>
+</note>
+</item>
+
+<tag>
 <marker id="capabilities"/><c>{capabilities, [&capability;]}</c></tag>
 <item>
 <p>
@@ -1155,7 +1128,7 @@ TLS is desired over TCP as implemented by &man_tcp;.</p>
 </item>
 
 <tag>
-<marker id="capabilities_cb"/><c>{capabilities_cb, &evaluable;}</c></tag>
+<marker id="capabilities_cb"/><c>{capabilities_cb, &eval;}</c></tag>
 <item>
 <p>
 Callback invoked upon reception of CER/CEA during capabilities
@@ -1249,7 +1222,7 @@ transport.</p>
 </item>
 
 <tag>
-<marker id="disconnect_cb"/><c>{disconnect_cb, &evaluable;}</c></tag>
+<marker id="disconnect_cb"/><c>{disconnect_cb, &eval;}</c></tag>
 <item>
 <p>
 Callback invoked prior to terminating the transport process of a
@@ -1349,6 +1322,19 @@ Defaults to 5000.</p>
 </item>
 
 <tag>
+<marker id="incoming_maxlen"/><c>{incoming_maxlen, 0..16777215}</c></tag>
+<item>
+<p>
+Bound on the expected size of incoming Diameter messages.
+Messages larger than the specified number of bytes are discarded.</p>
+
+<p>
+Defaults to <c>16777215</c>, the maximum value of the 24-bit Message
+Length field in a Diameter Header.</p>
+
+</item>
+
+<tag>
 <marker id="length_errors"/><c>{length_errors, exit|handle|discard}</c></tag>
 <item>
 <p>
@@ -1406,7 +1392,64 @@ incoming Diameter request.
 Options <c>monitor</c> and <c>link</c> are ignored.</p>
 
 <p>
-Defaults to the list configured on the service if not specified.</p>
+Defaults to the empty list.</p>
+</item>
+
+<tag>
+<marker id="strict_capx"/><c>{strict_capx, boolean()]}</c></tag>
+<item>
+<p>
+Whether or not to enforce the RFC 6733 requirement that any message
+before capabilities exchange should close the peer connection.
+If false then unexpected messages are discarded.</p>
+
+<p>
+Defaults to true.
+Changing this results in non-standard behaviour, but can be useful in
+case peers are known to be behave badly.</p>
+</item>
+
+<tag>
+<marker id="strict_mbit"/><c>{strict_mbit, boolean()}</c></tag>
+<item>
+<p>
+Whether or not to regard an AVP setting the M-bit as erroneous when
+the command grammar in question does not explicitly allow the AVP.
+If <c>true</c> then such AVPs are regarded as 5001 errors,
+DIAMETER_AVP_UNSUPPORTED.
+If <c>false</c> then the M-bit is ignored and policing
+it becomes the receiver's responsibility.</p>
+
+<p>
+Defaults to <c>true</c>.</p>
+
+<warning>
+<p>
+RFC 6733 is unclear about the semantics of the M-bit.
+One the one hand, the CCF specification in section 3.2 documents AVP
+in a command grammar as meaning <em>any</em> arbitrary AVP; on the
+other hand, 1.3.4 states that AVPs setting the M-bit cannot be added
+to an existing command: the modified command must instead be
+placed in a new Diameter application.</p>
+<p>
+The reason for the latter is presumably interoperability:
+allowing arbitrary AVPs setting the M-bit in a command makes its
+interpretation implementation-dependent, since there's no
+guarantee that all implementations will understand the same set of
+arbitrary AVPs in the context of a given command.
+However, interpreting <c>AVP</c> in a command grammar as any
+AVP, regardless of M-bit, renders 1.3.4 meaningless, since the receiver
+can simply ignore any AVP it thinks isn't relevant, regardless of the
+sender's intent.</p>
+<p>
+Beware of confusing mandatory in the sense of the M-bit with mandatory
+in the sense of the command grammar.
+The former is a semantic requirement: that the receiver understand the
+semantics of the AVP in the context in question.
+The latter is a syntactic requirement: whether or not the AVP must
+occur in the message in question.</p>
+</warning>
+
 </item>
 
 <tag>
diff --git a/lib/diameter/doc/src/diameter_app.xml b/lib/diameter/doc/src/diameter_app.xml
index dfcd00975b..aa334beb21 100644
--- a/lib/diameter/doc/src/diameter_app.xml
+++ b/lib/diameter/doc/src/diameter_app.xml
@@ -13,7 +13,8 @@
 <header>
 
 <copyright>
-<year>2011</year><year>2016</year>
+<year>2011</year>
+<year>2017</year>
 <holder>Ericsson AB. All Rights Reserved.</holder>
 </copyright>
 <legalnotice>
@@ -319,7 +320,7 @@ or &peer_down; callback.</p>
 <v>Action = Send | Discard | {eval_packet, Action, PostF}</v>
 <v>Send = {send, &packet; | &message;}</v>
 <v>Discard = {discard, Reason} | discard</v>
-<v>PostF = &mod_evaluable;}</v>
+<v>PostF = &mod_eval;}</v>
 </type>
 <desc>
 <p>
@@ -371,7 +372,7 @@ discarded}</c>.</p>
 <v>Action = Send | Discard | {eval_packet, Action, PostF}</v>
 <v>Send = {send, &packet; | &message;}</v>
 <v>Discard = {discard, Reason} | discard</v>
-<v>PostF = &mod_evaluable;}</v>
+<v>PostF = &mod_eval;}</v>
 </type>
 <desc>
 <p>
@@ -478,7 +479,7 @@ not selected.</p>
            | {answer_message, 3000..3999|5000..5999}
            | {protocol_error, 3000..3999}</v>
 <v>Opt     = &mod_call_opt;</v>
-<v>PostF   = &mod_evaluable;</v>
+<v>PostF   = &mod_eval;</v>
 </type>
 <desc>
 <p>
diff --git a/lib/diameter/doc/src/diameter_codec.xml b/lib/diameter/doc/src/diameter_codec.xml
index 0846334d23..5124b49484 100644
--- a/lib/diameter/doc/src/diameter_codec.xml
+++ b/lib/diameter/doc/src/diameter_codec.xml
@@ -4,7 +4,10 @@
   '<seealso marker="diameter_dict#MESSAGE_RECORDS">diameter_dict(4)</seealso>'>
   <!ENTITY types
   '<seealso marker="diameter_dict#DATA_TYPES">diameter_dict(4)</seealso>'>
-  <!ENTITY % also SYSTEM "seealso.ent" >
+  <!ENTITY decode_format
+  '<seealso marker="diameter#decode_format">decode format</seealso>'>
+
+<!ENTITY % also SYSTEM "seealso.ent" >
   <!ENTITY % here SYSTEM "seehere.ent" >
   %also;
   %here;
@@ -145,7 +148,8 @@ question.</p>
 <p>
 The decoded value of an AVP.
 Will be <c>undefined</c> on decode if the data bytes could
-not be decoded or the AVP is unknown.
+not be decoded, the AVP is unknown, or if the &decode_format; is
+<c>none</c>.
 The type of a decoded value is as document in &types;.</p>
 </item>
 
@@ -243,8 +247,7 @@ Equivalently, a message can also be encoded as a list whose head is
 the atom-valued message name (as specified in the relevant dictionary
 file) and whose tail is either a list of AVP name/values
 pairs or a map with values keyed on AVP names.
-The format at decode is determined by &mod_service_opt;
-<c>decode_format</c>.
+The format at decode is determined by &mod_decode_format;.
 Any of the formats is accepted at encode.</p>
 
 <p>
@@ -288,15 +291,16 @@ value other than <c>undefined</c>.</p>
 <item>
 <p>
 The incoming/outgoing message.
-For an incoming message, a record if the message can be
-decoded in a non-relay application, <c>undefined</c> otherwise.
+For an incoming message, a term corresponding to the configured
+&decode_format; if the message can be decoded in a non-relay
+application, <c>undefined</c> otherwise.
 For an outgoing message, setting a <c>[&header; | &avp;]</c> list is
 equivalent to setting the <c>header</c> and <c>avps</c> fields to the
 corresponding values.</p>
 
 <warning>
 <p>
-A record-valued <c>msg</c> field does <em>not</em> imply an absence of
+A value in the <c>msg</c> field does <em>not</em> imply an absence of
 decode errors.
 The <c>errors</c> field should also be examined.</p>
 </warning>
diff --git a/lib/diameter/doc/src/diameter_sctp.xml b/lib/diameter/doc/src/diameter_sctp.xml
index 9b6d629f79..62e958870e 100644
--- a/lib/diameter/doc/src/diameter_sctp.xml
+++ b/lib/diameter/doc/src/diameter_sctp.xml
@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <!DOCTYPE erlref SYSTEM "erlref.dtd" [
+  <!ENTITY man_tcp_sender
+  '<seealso marker="diameter_tcp#sender">diameter_tcp(3)</seealso>'>
   <!ENTITY gen_sctp '<seealso marker="kernel:gen_sctp">gen_sctp(3)</seealso>'>
   <!ENTITY gen_sctp_open1
   '<seealso marker="kernel:gen_sctp#open-1">gen_sctp:open/1</seealso>'>
@@ -16,7 +18,7 @@
 <header>
 <copyright>
 <year>2011</year>
-<year>2016</year>
+<year>2017</year>
 <holder>Ericsson AB. All Rights Reserved.</holder>
 </copyright>
 <legalnotice>
@@ -78,7 +80,11 @@ and implements the behaviour documented in
 <v>Reason = term()</v>
 <v>OwnOpt = {raddr, &ip_address;}
           | {rport, integer()}
-          | {accept, Match}</v>
+          | {accept, Match}
+          | {unordered, boolean() | pos_integer()}
+          | {packet, boolean() | raw}
+          | {message_cb, &mod_eval;}
+          | {sender, boolean()}</v>
 <v>SctpOpt = term()</v>
 <v>Match = &ip_address; | string() | [Match]</v>
 </type>
@@ -106,6 +112,41 @@ A string-valued <c>Match</c> that does not parse as an address is
 interpreted as a regular expression.</p>
 
 <p>
+Option <c>unordered</c> specifies whether or not to use unordered
+delivery, integer <c>N</c> being equivalent to <c>N =&lt; OS</c>,
+where <c>OS</c> is the number of outbound streams negotiated on the
+association in question.
+Regardless of configuration, sending is ordered on stream 0
+until reception of a second incoming message, to ensure that a peer
+receives capabilities exchange messages before any other.
+Defaults to <c>false</c>.</p>
+
+<p>
+Option <c>packet</c> determines how/if an incoming message is
+packaged into a diameter_packet record.
+If <c>false</c> then messages are received as binary().
+If <c>true</c> then as a record with the binary() message in the
+<c>bin</c> field and a <c>{stream, Id}</c> tuple in the
+<c>transport_data</c> field, where <c>Id</c> is the identifier of the
+inbound stream the message was received on.
+If <c>raw</c> then as a record with the received ancillary
+sctp_sndrcvinfo record in the <c>transport_data</c> field.
+Defaults to <c>true</c>.</p>
+
+<p>
+Options <c>message_cb</c> and <c>sender</c> have semantics identical
+to those documented in &man_tcp_sender;, but with the message argument
+to a <c>recv</c> callback being as directed by the <c>packet</c>
+option.</p>
+
+<p>
+An <c>{outstream, Id}</c> tuple in the <c>transport_data</c> field of
+a outgoing diameter_packet record sets the outbound stream on which
+the message is sent, modulo the negotiated number of outbound streams.
+Any other value causes successive such sends to cycle though all
+outbound streams.</p>
+
+<p>
 Remaining options are any accepted by &gen_sctp_open1;, with the exception
 of options <c>mode</c>, <c>binary</c>, <c>list</c>, <c>active</c>
 and <c>sctp_events</c>.
@@ -116,35 +157,21 @@ and port respectively.</p>
 Multiple <c>ip</c> options can be specified for a multihomed peer.
 If none are specified then the values of <c>Host-IP-Address</c>
 in the <c>diameter_service</c> record are used.
-(In particular, one of these must be specified.)
 Option <c>port</c> defaults to 3868 for a listening transport and 0 for a
 connecting transport.</p>
 
 <warning>
 <p>
-An insufficiently large receive buffer may result in a peer having to
+An small receive buffer may result in a peer having to
 resend incoming messages: set the &inet; option <c>recbuf</c> to increase
 the buffer size.</p>
 
 <p>
-An insufficiently large send buffer may result in outgoing messages
+An small send buffer may result in outgoing messages
 being discarded: set the &inet; option <c>sndbuf</c> to increase
 the buffer size.</p>
 </warning>
 
-<p>
-The <c>transport_data</c> field of record <c>diameter_packet</c>
-is used to communicate the stream on which an inbound message
-has been received, or on which an outbound message should be sent.
-The value will be of the form <c>{stream, Id}</c> for an inbound
-message passed to a &app_handle_request; or &app_handle_answer;
-callback.
-For an outbound message, <c>{outstream, Id}</c> in the return value of
-&app_handle_request; or &app_prepare_retransmit; sets the outbound
-stream, the stream id being interpreted modulo the number of outbound
-streams.
-Any other value, or not setting a value, causes successive such sends
-to cycle though all outbound streams.</p>
 </desc>
 </func>
 
diff --git a/lib/diameter/doc/src/diameter_soc.xml b/lib/diameter/doc/src/diameter_soc.xml
index ae404fcda4..28e01ff1be 100644
--- a/lib/diameter/doc/src/diameter_soc.xml
+++ b/lib/diameter/doc/src/diameter_soc.xml
@@ -1,15 +1,22 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <!DOCTYPE chapter SYSTEM "chapter.dtd" [
+  <!ENTITY gen_sctp '<seealso marker="kernel:gen_sctp">gen_sctp(3)</seealso>'>
+  <!ENTITY gen_tcp '<seealso marker="kernel:gen_tcp">gen_tcp(3)</seealso>'>
+  <!ENTITY service '<seealso marker="diameter#start_service-2">service</seealso>'>
+  <!ENTITY capabilities '<seealso marker="diameter#capability">capabilities</seealso>'>
+  <!ENTITY events '<seealso marker="diameter#service_event">events</seealso>'>
+  <!ENTITY NA '&#8212;'>
+  <!ENTITY BR '<br/>&nbsp;<br/>'>
   <!ENTITY % also SYSTEM "seealso.ent" >
   %also;
 ]>
 
-<chapter xmlns:xi="http://www.w3.org/2001/XInclude">
+<chapter>
 
 <header>
 <copyright>
 <year>2011</year>
-<year>2016</year>
+<year>2017</year>
 <holder>Ericsson AB. All Rights Reserved.</holder>
 </copyright>
 
@@ -41,63 +48,1285 @@ limitations under the License.
 </header>
 
 <p>
-Known points of questionable or non-compliance.</p>
+The table below summarizes the diameter application's compliance with
+&the_rfc;.
+Since the diameter application isn't a Diameter node on its own,
+compliance is strictly the responsibility of the user in many cases,
+diameter providing the means for the user to be compliant
+rather than being compliant on its own.</p>
 
-<!-- ===================================================================== -->
-
-<section>
-<title>&the_rfc;</title>
-
-<list>
-
-<item>
-<p>
-There is no support for DTLS over SCTP.</p>
-</item>
-
-<item>
 <p>
-There is no explicit support for peer discovery (section 5.2).
-It can possibly be implemented on top of diameter as is but this is
-probably something that diameter should do.</p>
-</item>
+The Compliance column notes <em>C</em> (Compliant) if the required
+functionality is implemented, <em>PC</em> (Partially Compliant) if
+there are limitations, <em>NC</em> (Not Compliant) if functionality is
+not implemented, or a dash if text is informational or only places
+requirements that must be met by the user's implementation.</p>
 
-<item>
 <p>
-The peer state machine's election process (section 5.6.4) isn't
-implemented as specified since it assumes knowledge of a
-peer's Origin-Host before sending it a CER. (The identity becoming known
-upon reception of CEA.)
-The possibility of configuring
-the peer's Origin-Host could be added, along with handling of the case
-that it sends something else, but for many applications this will
-just be unnecessary configuration of a value that it has no control over.</p>
-</item>
-<!-- Transport protocol plus address/port, which we do know when
-     sending and receiving CER, is enough to definitely identify
-     the peer. However, there's nothing stopping a peer from using
-     different identities on different transport protocols, even
-     if it's maybe a bit far-fetched. -->
-
-</list>
-
-<xi:include href="diameter_soc_rfc6733.xml"/>
-
-</section>
+Capitalized <em>Diameter</em> refers to the protocol, lowercase
+<em>diameter</em> to the Erlang application.</p>
 
 <!-- ===================================================================== -->
 
 <section>
-<title>RFC 3539</title>
+<title>&the_rfc; - Diameter Base Protocol</title>
 
-<p>
-RFC 3539 is more difficult to comply to since it discusses
-problems as much as it requires functionality but all the MUST's are
-covered, the watchdog state machine being the primary one.
-Of the optional functionality, load balancing is left to the
-diameter user (since it's the one deciding who to send to) and
-there is no Congestion Manager.</p>
+<table>
+<row>
+  <cell><em>Section</em></cell>
+  <cell><em>Title</em></cell>
+  <cell><em>Compliance</em></cell>
+  <cell><em>Notes</em></cell>
+</row>
+<row>
+  <cell>1</cell>
+  <cell>Introduction</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>1.1</cell>
+  <cell>Diameter Protocol</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>1.1.1</cell>
+  <cell>Description of the Document Set</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>1.1.2</cell>
+  <cell>Conventions Used in This Document</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>1.1.3</cell>
+  <cell>Changes from RFC 3588</cell>
+  <cell>&NA;</cell>
+  <cell>It is possible to configure a 3588 dictionary in
+  order to get 3588 semantics, where the differ from 6733.</cell>
+</row>
+<row>
+  <cell>1.2</cell>
+  <cell>Terminology</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>1.3</cell>
+  <cell>Approach to Extensibility</cell>
+  <cell>&NA;</cell>
+  <cell>The dictionary interface documented in &man_dict; provides
+  extensibility, allowing the user to defined new AVPs, commands, and
+  applications.
+  Ready dictionaries are provided for the &the_rfc; common message, base
+  accounting, and relay applications, as well as for RFC 7683,
+  Diameter Overload Indicator Conveyance.</cell>
+</row>
+<row>
+  <cell>1.3.1</cell>
+  <cell>Defining New AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>1.3.2</cell>
+  <cell>Creating New AVPs</cell>
+  <cell>&NA;</cell>
+  <cell>New AVPs can be defined using the dictionary interface.
+  Both both RFC data formats and extensions are supported.</cell>
+</row>
+<row>
+  <cell>1.3.3</cell>
+  <cell>Creating New Commands</cell>
+  <cell>&NA;</cell>
+  <cell>New commands can be defined using the dictionary interface.</cell>
+</row>
+<row>
+  <cell>1.3.4</cell>
+  <cell>Creating New Diameter Applications</cell>
+  <cell>&NA;</cell>
+  <cell>New applications can be defined using the dictionary interface.</cell>
+</row>
+<row>
+  <cell>2</cell>
+  <cell>Protocol Overview</cell>
+  <cell>&NA;</cell>
+  <cell>Session state is the responsibility of the user.&BR;
+  The role of a Diameter node is determined by the user's
+  implementation.</cell>
+</row>
+<row>
+  <cell>2.1</cell>
+  <cell>Transport</cell>
+  <cell>PC</cell>
+  <cell>Ports are configured by the user: diameter places no
+  restrictions.&BR;
+  The transport interface documented in &man_transport;
+  allows the user to implement their own methods.
+  Ready support is provided for TCP, TCP/TLS, and SCTP, but not
+  DTLS/SCTP.&BR;
+  Multiple connections to the same peer is possible.
+  ICMP messages are not interpreted.</cell>
+</row>
+<row>
+  <cell>2.1.1</cell>
+  <cell>SCTP Guidelines</cell>
+  <cell>C</cell>
+  <cell>Unordered sending is configurable in &man_sctp;.
+  There is no special handling of DPR/DPA: since a user that cares
+  about pending answers should wait for them before initiating
+  DPR.&BR;
+  A PPID can be configured with a a gen_sctp sctp_default_send_param
+  option.</cell>
+</row>
+<row>
+  <cell>2.2</cell>
+  <cell>Securing Diameter Messages</cell>
+  <cell>PC</cell>
+  <cell>DTLS is not supported by &man_sctp;. See also
+  2.1.</cell>
+</row>
+<row>
+  <cell>2.3</cell>
+  <cell>Diameter Application Compliance</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>2.4</cell>
+  <cell>Application Identifiers</cell>
+  <cell>C</cell>
+  <cell>The user configures diameter with the identifiers to send at
+  capabilities exchange, along with corresponding dictionaries
+  defining the messages of the applications.</cell>
+</row>
+<row>
+  <cell>2.5</cell>
+  <cell>Connections vs. Sessions</cell>
+  <cell>C</cell>
+  <cell>Connections are realized by configuring transport. Sessions
+  are the responsibility of the user.</cell>
+</row>
+<row>
+  <cell>2.6</cell>
+  <cell>Peer Table</cell>
+  <cell>PC</cell>
+  <cell>Routing is implemented by the user in callbacks documented in
+  &man_app;.
+  A peer table of the documented form is not exposed to the user.</cell>
+</row>
+<row>
+  <cell>2.7</cell>
+  <cell>Routing Table</cell>
+  <cell>PC</cell>
+  <cell>See 2.6.
+  A routing table of the documented form is not exposed to
+  the user.</cell>
+</row>
+<row>
+  <cell>2.8</cell>
+  <cell>Role of Diameter Agents</cell>
+  <cell>C</cell>
+  <cell>Most role-specific behaviour is implemented by the user.
+  How a node advertises itself at capabilities exchange is determined
+  by user configuration.</cell>
+</row>
+<row>
+  <cell>2.8.1</cell>
+  <cell>Relay Agents</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>2.8.2</cell>
+  <cell>Proxy Agents</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>2.8.3</cell>
+  <cell>Redirect Agents</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>2.8.4</cell>
+  <cell>Translation Agents</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>2.9</cell>
+  <cell>Diameter Path Authorization</cell>
+  <cell>&NA;</cell>
+  <cell>Authorization is the responsibility of the user.</cell>
+</row>
+<row>
+  <cell>3</cell>
+  <cell>Diameter Header</cell>
+  <cell>C</cell>
+  <cell>Hop-by-Hop and End-to-End Identifiers are set by diameter when
+  sending outgoing requests.</cell>
+</row>
+<row>
+  <cell>3.1</cell>
+  <cell>Command Codes</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>3.2</cell>
+  <cell>Command Code Format Specification</cell>
+  <cell>C</cell>
+  <cell>Commands are defined as CCF specifications in dictionary
+  files.</cell>
+</row>
+<row>
+  <cell>3.3</cell>
+  <cell>Diameter Command Naming Conventions</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>4</cell>
+  <cell>Diameter AVPs</cell>
+  <cell>C</cell>
+  <cell>Any required padding is added by diameter when encoding
+  outgoing messages.</cell>
+</row>
+<row>
+  <cell>4.1</cell>
+  <cell>AVP Header</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>4.1.1</cell>
+  <cell>Optional Header Elements</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>4.2</cell>
+  <cell>Basic AVP Data Formats</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>4.3</cell>
+  <cell>Derived AVP Data Formats</cell>
+  <cell>C</cell>
+  <cell>Arbitrary derived data formats are supported by the dictionary
+  interface.</cell>
+</row>
+<row>
+  <cell>4.3.1</cell>
+  <cell>Common Derived AVP Data Formats</cell>
+  <cell>C</cell>
+  <cell>Beware that RFC 6733 changed the DiameterURI transport/port
+  defaults specified in RFC3588.
+  Relying on the defaults can result in interoperability
+  problems.</cell>
+</row>
+<row>
+  <cell>4.4</cell>
+  <cell>Grouped AVP Values</cell>
+  <cell>C</cell>
+  <cell>The M-bit on a component AVP of a Grouped AVP that does not
+  set M is ignored: such AVPs are not regarded as erroneous at
+  decode.&BR;
+  Grouped AVPs are defined as CCF specifications in dictionary
+  files.</cell>
+</row>
+<row>
+  <cell>4.4.1</cell>
+  <cell>Example AVP with a Grouped Data Type</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>4.5</cell>
+  <cell>Diameter Base Protocol AVPs</cell>
+  <cell>C</cell>
+  <cell>The base AVPs are defined in the common dictionary provided by
+  diameter.
+  There are common dictionaries for both RFC 3588 and RFC 6733 since
+  the latter made changes to both syntax and semantics.</cell>
+</row>
+<row>
+  <cell>5</cell>
+  <cell>Diameter Peers</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.1</cell>
+  <cell>Peer Connections</cell>
+  <cell>PC</cell>
+  <cell>A peer's DiameterIdentity is not required when initiating a
+  connection: the identify is received at capabilities exchange, at
+  which time the connection can be rejected if the identity is
+  objectionable.&BR;
+  The number of connections established depends on the user's
+  configuration. Multiple connections per peer is possible.</cell>
+</row>
+<row>
+  <cell>5.2</cell>
+  <cell>Diameter Peer Discovery</cell>
+  <cell>NC</cell>
+  <cell>No form of peer discovery is implemented.
+  The user can implement this independently of diameter if
+  required.</cell>
+</row>
+<row>
+  <cell>5.3</cell>
+  <cell>Capabilities Exchange</cell>
+  <cell>C</cell>
+  <cell>All supported applications are sent in CEA.
+  The user can reject an incoming CER or CEA in a configured
+  callback.&BR;
+  Both transport security at connection establishment and
+  negotiated via an Inband-Security AVP are supported.</cell>
+</row>
+<row>
+  <cell>5.3.1</cell>
+  <cell>Capabilities-Exchange-Request</cell>
+  <cell>C</cell>
+  <cell>CER is sent and received by diameter.</cell>
+</row>
+<row>
+  <cell>5.3.2</cell>
+  <cell>Capabilities-Exchange-Answer</cell>
+  <cell>C</cell>
+  <cell>CEA is sent and received by diameter.</cell>
+</row>
+<row>
+  <cell>5.3.3</cell>
+  <cell>Vendor-Id AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.3.4</cell>
+  <cell>Firmware-Revision AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.3.5</cell>
+  <cell>Host-IP-Address AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.3.6</cell>
+  <cell>Supported-Vendor-Id AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.3.7</cell>
+  <cell>Product-Name AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.4</cell>
+  <cell>Disconnecting Peer Connections</cell>
+  <cell>C</cell>
+  <cell>DPA will not be answered with error: a peer that wants to a
+  avoid a race can wait for pending answers before sending
+  DPR.</cell>
+</row>
+<row>
+  <cell>5.4.1</cell>
+  <cell>Disconnect-Peer-Request</cell>
+  <cell>C</cell>
+  <cell>DPR is sent by diameter in response to configuration
+  changes requiring a connection to be broken.
+  The user can also send DPR.</cell>
+</row>
+<row>
+  <cell>5.4.2</cell>
+  <cell>Disconnect-Peer-Answer</cell>
+  <cell>C</cell>
+  <cell>DPR is answered by diameter.</cell>
+</row>
+<row>
+  <cell>5.4.3</cell>
+  <cell>Disconnect-Cause AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.5</cell>
+  <cell>Transport Failure Detection</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.5.1</cell>
+  <cell>Device-Watchdog-Request</cell>
+  <cell>C</cell>
+  <cell>DWR is sent and received by diameter.
+  Callbacks notify the user of transitions into and out of the OKAY
+  state.</cell>
+</row>
+<row>
+  <cell>5.5.2</cell>
+  <cell>Device-Watchdog-Answer</cell>
+  <cell>C</cell>
+  <cell>DWA is sent and received by diameter.</cell>
+</row>
+<row>
+  <cell>5.5.3</cell>
+  <cell>Transport Failure Algorithm</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.5.4</cell>
+  <cell>Failover and Failback Procedures</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.6</cell>
+  <cell>Peer State Machine</cell>
+  <cell>PC</cell>
+  <cell>The election process is modified as described in 5.6.4.</cell>
+</row>
+<row>
+  <cell>5.6.1</cell>
+  <cell>Incoming Connections</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.6.2</cell>
+  <cell>Events</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.6.3</cell>
+  <cell>Actions</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>5.6.4</cell>
+  <cell>The Election Process</cell>
+  <cell>PC</cell>
+  <cell>As documented, the election assumes knowledge of a peer's
+  DiameterIdentity when initiating a connection, which diameter
+  doesn't require. Connections will be accepted if configuration
+  allows multiple connections per peer to be established or there is
+  no existing connection. Note that the election process is only
+  applicable when multiple connections per peer is
+  disallowed.</cell>
+</row>
+<row>
+  <cell>6</cell>
+  <cell>Diameter Message Processing</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.1</cell>
+  <cell>Diameter Request Routing Overview</cell>
+  <cell>&NA;</cell>
+  <cell>Routing is performed by the user.
+  A callback from diameter provides a list of available suitable peer
+  connections.</cell>
+</row>
+<row>
+  <cell>6.1.1</cell>
+  <cell>Originating a Request</cell>
+  <cell>C</cell>
+  <cell>Requests are constructed by the user; diameter sets header
+  fields as defined in the relevant dictionary.</cell>
+</row>
+<row>
+  <cell>6.1.2</cell>
+  <cell>Sending a Request</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.1.3</cell>
+  <cell>Receiving Requests</cell>
+  <cell>C</cell>
+  <cell>Loops are detected by diameter when the return value of a
+  request callback asks that a request be forwarded.
+  Loop detection in other cases is the responsibility of the
+  user.</cell>
+</row>
+<row>
+  <cell>6.1.4</cell>
+  <cell>Processing Local Requests</cell>
+  <cell>C</cell>
+  <cell>The user decides whether or not to process a request locally
+  in the request callback from diameter.</cell>
+</row>
+<row>
+  <cell>6.1.5</cell>
+  <cell>Request Forwarding</cell>
+  <cell>PC</cell>
+  <cell>See 2.6.</cell>
+</row>
+<row>
+  <cell>6.1.6</cell>
+  <cell>Request Routing</cell>
+  <cell>PC</cell>
+  <cell>See 2.7.</cell>
+</row>
+<row>
+  <cell>6.1.7</cell>
+  <cell>Predictive Loop Avoidance</cell>
+  <cell>C</cell>
+  <cell>See 6.1.3.</cell>
+</row>
+<row>
+  <cell>6.1.8</cell>
+  <cell>Redirecting Requests</cell>
+  <cell>PC</cell>
+  <cell>See 2.6.</cell>
+</row>
+<row>
+  <cell>6.1.9</cell>
+  <cell>Relaying and Proxying Requests</cell>
+  <cell>C</cell>
+  <cell>A Route-Record AVP is appended by diameter when the return
+  value of a request callback asks that a request be forwarded.
+  Appending the AVP in other cases is the responsibility of the
+  user.</cell>
+</row>
+<row>
+  <cell>6.2</cell>
+  <cell>Diameter Answer Processing</cell>
+  <cell>C</cell>
+  <cell>Answer message are constructed by the user, except in the case
+  of some protocol errors, in which case the procedures are
+  followed.</cell>
+</row>
+<row>
+  <cell>6.2.1</cell>
+  <cell>Processing Received Answers</cell>
+  <cell>C</cell>
+  <cell>Answers with an unknown Hop-by-Hop Identifier are
+  discarded.</cell>
+</row>
+<row>
+  <cell>6.2.2</cell>
+  <cell>Relaying and Proxying Answers</cell>
+  <cell>&NA;</cell>
+  <cell>Modifying answers is the responsibility of the user in
+  callbacks from diameter.</cell>
+</row>
+<row>
+  <cell>6.3</cell>
+  <cell>Origin-Host AVP</cell>
+  <cell>C</cell>
+  <cell>The order of AVPs in an encoded message is determined by
+  the CCF of the message in question.&BR;
+  AVPs defined in the RFC are defined in dictionaries provided by
+  diameter.
+  Their proper use in application messages is the responsibility of
+  the user.</cell>
+</row>
+<row>
+  <cell>6.4</cell>
+  <cell>Origin-Realm AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.5</cell>
+  <cell>Destination-Host AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.6</cell>
+  <cell>Destination-Realm AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.7</cell>
+  <cell>Routing AVPs</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.7.1</cell>
+  <cell>Route-Record AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.7.2</cell>
+  <cell>Proxy-Info AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.7.3</cell>
+  <cell>Proxy-Host AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.7.4</cell>
+  <cell>Proxy-State AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.8</cell>
+  <cell>Auth-Application-Id AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.9</cell>
+  <cell>Acct-Application-Id AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.10</cell>
+  <cell>Inband-Security-Id AVP</cell>
+  <cell>C</cell>
+  <cell>See 2.1.</cell>
+</row>
+<row>
+  <cell>6.11</cell>
+  <cell>Vendor-Specific-Application-Id AVP</cell>
+  <cell>C</cell>
+  <cell>Note that the CCF of this AVP is not the same as in RFC
+  3588.</cell>
+</row>
+<row>
+  <cell>6.12</cell>
+  <cell>Redirect-Host AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.13</cell>
+  <cell>Redirect-Host-Usage AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>6.14</cell>
+  <cell>Redirect-Max-Cache-Time AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>7</cell>
+  <cell>Error Handling</cell>
+  <cell>C</cell>
+  <cell>Answers are formulated by the user in most cases.
+  Answers setting the E-bit can be sent by diameter itself in response
+  to a request that cannot be handled by the user.</cell>
+</row>
+<row>
+  <cell>7.1</cell>
+  <cell>Result-Code AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>7.1.1</cell>
+  <cell>Informational</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>7.1.2</cell>
+  <cell>Success</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>7.1.3</cell>
+  <cell>Protocol Errors</cell>
+  <cell>C</cell>
+  <cell>Result codes 3001, 3002, 3005, and 3007 can be sent in answers
+  formulated by diameter, if configured to do so.</cell>
+</row>
+<row>
+  <cell>7.1.4</cell>
+  <cell>Transient Failures</cell>
+  <cell>C</cell>
+  <cell>Result code 4003 is sent in CEA if there is an existing
+  connection to the peer in question and configuration does not allow
+  more than one.</cell>
+</row>
+<row>
+  <cell>7.1.5</cell>
+  <cell>Permanent Failures</cell>
+  <cell>C</cell>
+  <cell>Message reception detects 5001, 5004,
+  5005, 5008, 5009, 5010, 5011, 5014, 5015, and 5017 errors.
+  It ignores 5013 errors at the admonition of sections 3 and 4.1.&BR;
+  Note that RFC 3588 did not allow 5xxx result codes in
+  answers setting the E-bit, while RFC 6733 does.
+  This is a potential interoperability problem since the Diameter
+  protocol version has not changed.</cell>
+</row>
+<row>
+  <cell>7.2</cell>
+  <cell>Error Bit</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>7.3</cell>
+  <cell>Error-Message AVP</cell>
+  <cell>C</cell>
+  <cell>The user can include this AVP as required.</cell>
+</row>
+<row>
+  <cell>7.4</cell>
+  <cell>Error-Reporting-Host AVP</cell>
+  <cell>C</cell>
+  <cell>The user can include this AVP as required.</cell>
+</row>
+<row>
+  <cell>7.5</cell>
+  <cell>Failed-AVP AVP</cell>
+  <cell>C</cell>
+  <cell>The user constructs application-specific messages, but
+  diameter provides failed AVPs in message callbacks. Failed component AVPs
+  are grouped within the relevant Grouped AVPs.</cell>
+</row>
+<row>
+  <cell>7.6</cell>
+  <cell>Experimental-Result AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>7.7</cell>
+  <cell>Experimental-Result-Code AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8</cell>
+  <cell>Diameter User Sessions</cell>
+  <cell>&NA;</cell>
+  <cell>Authorization and accounting AVPs are defined in provided
+  dictionaries. Their proper use is the responsibility of the
+  user.</cell>
+</row>
+<row>
+  <cell>8.1</cell>
+  <cell>Authorization Session State Machine</cell>
+  <cell>&NA;</cell>
+  <cell>Authorization is the responsibility of the user: diameter does
+  not implement this state machine.</cell>
+</row>
+<row>
+  <cell>8.2</cell>
+  <cell>Accounting Session State Machine</cell>
+  <cell>&NA;</cell>
+  <cell>Accounting is the responsibility of the user: diameter does
+  not implement this state machine.</cell>
+</row>
+<row>
+  <cell>8.3</cell>
+  <cell>Server-Initiated Re-Auth</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.3.1</cell>
+  <cell>Re-Auth-Request</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.3.2</cell>
+  <cell>Re-Auth-Answer</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.4</cell>
+  <cell>Session Termination</cell>
+  <cell>&NA;</cell>
+  <cell>Session-related messages and AVPs are defined in provided
+  dictionaries. Their proper use is the user's responsibility.</cell>
+</row>
+<row>
+  <cell>8.4.1</cell>
+  <cell>Session-Termination-Request</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.4.2</cell>
+  <cell>Session-Termination-Answer</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.5</cell>
+  <cell>Aborting a Session</cell>
+  <cell>&NA;</cell>
+  <cell>Session-related messages and AVPs are defined in provided
+  dictionaries. Their proper use is the user's responsibility.</cell>
+</row>
+<row>
+  <cell>8.5.1</cell>
+  <cell>Abort-Session-Request</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.5.2</cell>
+  <cell>Abort-Session-Answer</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.6</cell>
+  <cell>Inferring Session Termination from Origin-State-Id</cell>
+  <cell>&NA;</cell>
+  <cell>Session-related messages and AVPs are defined in provided
+  dictionaries. Their proper use is the user's responsibility.</cell>
+</row>
+<row>
+  <cell>8.7</cell>
+  <cell>Auth-Request-Type AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.8</cell>
+  <cell>Session-Id AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.9</cell>
+  <cell>Authorization-Lifetime AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.10</cell>
+  <cell>Auth-Grace-Period AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.11</cell>
+  <cell>Auth-Session-State AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.12</cell>
+  <cell>Re-Auth-Request-Type AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.13</cell>
+  <cell>Session-Timeout AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.14</cell>
+  <cell>User-Name AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.15</cell>
+  <cell>Termination-Cause AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.16</cell>
+  <cell>Origin-State-Id AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.17</cell>
+  <cell>Session-Binding AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.18</cell>
+  <cell>Session-Server-Failover AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.19</cell>
+  <cell>Multi-Round-Time-Out AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.20</cell>
+  <cell>Class AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>8.21</cell>
+  <cell>Event-Timestamp AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9</cell>
+  <cell>Accounting</cell>
+  <cell>&NA;</cell>
+  <cell>Accounting-related messages and AVPs are defined in provided
+  dictionaries. Their proper use is the user's responsibility.</cell>
+</row>
+<row>
+  <cell>9.1</cell>
+  <cell>Server Directed Model</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.2</cell>
+  <cell>Protocol Messages</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.3</cell>
+  <cell>Accounting Application Extension and Requirements</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.4</cell>
+  <cell>Fault Resilience</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.5</cell>
+  <cell>Accounting Records</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.6</cell>
+  <cell>Correlation of Accounting Records</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.7</cell>
+  <cell>Accounting Command Codes</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.7.1</cell>
+  <cell>Accounting-Request</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.7.2</cell>
+  <cell>Accounting-Answer</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.8</cell>
+  <cell>Accounting AVPs</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.8.1</cell>
+  <cell>Accounting-Record-Type AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.8.2</cell>
+  <cell>Acct-Interim-Interval AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.8.3</cell>
+  <cell>Accounting-Record-Number AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.8.4</cell>
+  <cell>Acct-Session-Id AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.8.5</cell>
+  <cell>Acct-Multi-Session-Id AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.8.6</cell>
+  <cell>Accounting-Sub-Session-Id AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>9.8.7</cell>
+  <cell>Accounting-Realtime-Required AVP</cell>
+  <cell>C</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>10</cell>
+  <cell>AVP Occurrence Tables</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>10.1</cell>
+  <cell>Base Protocol Command AVP Table</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>10.2</cell>
+  <cell>Accounting AVP Table</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11</cell>
+  <cell>IANA Considerations</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.1</cell>
+  <cell>AVP Header</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.1.1</cell>
+  <cell>AVP Codes</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.1.2</cell>
+  <cell>AVP Flags</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.2</cell>
+  <cell>Diameter Header</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.2.1</cell>
+  <cell>Command Codes</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.2.2</cell>
+  <cell>Command Flags</cell>
+  <cell></cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3</cell>
+  <cell>AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.1</cell>
+  <cell>Experimental-Result-Code AVP</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.2</cell>
+  <cell>Result-Code AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.3</cell>
+  <cell>Accounting-Record-Type AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.4</cell>
+  <cell>Termination-Cause AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.5</cell>
+  <cell>Redirect-Host-Usage AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.6</cell>
+  <cell>Session-Server-Failover AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.7</cell>
+  <cell>Session-Binding AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.8</cell>
+  <cell>Disconnect-Cause AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.9</cell>
+  <cell>Auth-Request-Type AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.10</cell>
+  <cell>Auth-Session-State AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.11</cell>
+  <cell>Re-Auth-Request-Type AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.12</cell>
+  <cell>Accounting-Realtime-Required AVP Values</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.3.13</cell>
+  <cell>Inband-Security-Id AVP (code 299)</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.4</cell>
+  <cell>_diameters Service Name and Port Number Registration</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.5</cell>
+  <cell>SCTP Payload Protocol Identifiers</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>11.6</cell>
+  <cell>S-NAPTR Parameters</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>12</cell>
+  <cell>Diameter Protocol-Related Configurable Parameters</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>13</cell>
+  <cell>Security Considerations</cell>
+  <cell>PC</cell>
+  <cell>See 2.1.&BR;
+  IPsec is transparent to diameter.</cell>
+</row>
+<row>
+  <cell>13.1</cell>
+  <cell>TLS/TCP and DTLS/SCTP Usage</cell>
+  <cell>PC</cell>
+  <cell>See 2.1.</cell>
+</row>
+<row>
+  <cell>13.2</cell>
+  <cell>Peer-to-Peer Considerations</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>13.3</cell>
+  <cell>AVP Considerations</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>14</cell>
+  <cell>References</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>14.1</cell>
+  <cell>Normative References</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+<row>
+  <cell>14.2</cell>
+  <cell>Informative References</cell>
+  <cell>&NA;</cell>
+  <cell></cell>
+</row>
+
+<tcaption>RFC 6733 Compliance</tcaption>
+</table>
 
 </section>
 
 </chapter>
+
+<!--  LocalWords:  AVP AVPs CCF DiameterIdentity CEA CER Inband IP
+-->
+<!--  LocalWords:  DPA DPR DWR DWA Failover Failback Proxying Auth
+-->
+<!--  LocalWords:  interoperability Multi Timestamp Realtime
+-->
diff --git a/lib/diameter/doc/src/diameter_soc_rfc6733.xml b/lib/diameter/doc/src/diameter_soc_rfc6733.xml
deleted file mode 100644
index 2098965706..0000000000
--- a/lib/diameter/doc/src/diameter_soc_rfc6733.xml
+++ /dev/null
@@ -1,8693 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-
-<!--
-
-<copyright>
-<year>2013</year><year>2016</year>
-<holder>Ericsson AB. All Rights Reserved.</holder>
-</copyright>
-
-<legalnotice>
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
- 
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
-</legalnotice>
-
--->
-
-<!DOCTYPE section SYSTEM "chapter.dtd" [
-  <!ENTITY gen_sctp '<seealso marker="kernel:gen_sctp">gen_sctp(3)</seealso>'>
-  <!ENTITY gen_tcp '<seealso marker="kernel:gen_tcp">gen_tcp(3)</seealso>'>
-  <!ENTITY service '<seealso marker="diameter#start_service-2">service</seealso>'>
-  <!ENTITY capabilities '<seealso marker="diameter#capability">capabilities</seealso>'>
-  <!ENTITY events '<seealso marker="diameter#service_event">events</seealso>'>
-  <!ENTITY nada '<p>No comment.</p>'>
-  <!ENTITY % also SYSTEM "seealso.ent" >
-  %also;
-]>
-
-<section>
-<title>Commentary</title>
-
-<p>
-A more detailed commentary on &the_rfc; follows.
-Its purpose is to (hopefully) clarify not only what is supported but
-how, given that semantics and features discussed in the RFC are not
-solely the responsibility of the diameter application:
-in many cases much depends on the configuration a user passes to
-diameter, the implementation of &man_app; callback modules in
-particular.</p>
-
-<p>
-Comments apply to all text following the preceding comment.
-Be sure to distinguish between capitalized <em>Diameter</em>, the
-protocol defined by the RFC, and lowercase <em>diameter</em>, the
-Erlang application to which the commentary applies.</p>
-
-<warning>
-<p>
-The commentary is not yet complete.
-Comments currently stop at chapter 4.</p>
-</warning>
-
-<pre>
-Fajardo, et al.              Standards Track                    [Page 6]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-1.  Introduction
-
-   Authentication, Authorization, and Accounting (AAA) protocols such as
-   TACACS [RFC1492] and RADIUS [RFC2865] were initially deployed to
-   provide dial-up PPP [RFC1661] and terminal server access.  Over time,
-   AAA support was needed on many new access technologies, the scale and
-   complexity of AAA networks grew, and AAA was also used on new
-   applications (such as voice over IP).  This led to new demands on AAA
-   protocols.
-</pre>
-
-<p>
-Note that diameter implements the Diameter protocol as defined in
-&the_rfc;.
-It also supported the previous version of the protocol, as defined in
-RFC 3588, when there are differences.
-(Which will be noted below.)
-It does not support RADIUS.</p>
-
-<pre>
-
-   Network access requirements for AAA protocols are summarized in
-   Aboba, et al. [RFC2989].  These include:
-
-   Failover
-
-      [RFC2865] does not define failover mechanisms and, as a result,
-      failover behavior differs between implementations.  In order to
-      provide well-defined failover behavior, Diameter supports
-      application-layer acknowledgements and defines failover algorithms
-      and the associated state machine.
-</pre>
-
-&nada;
-
-<pre>
-
-   Transmission-level security
-
-      RADIUS [RFC2865] defines an application-layer authentication and
-      integrity scheme that is required only for use with response
-      packets.  While [RFC2869] defines an additional authentication and
-      integrity mechanism, use is only required during Extensible
-      Authentication Protocol (EAP) [RFC3748] sessions.  While attribute
-      hiding is supported, [RFC2865] does not provide support for per-
-      packet confidentiality.  In accounting, [RFC2866] assumes that
-      replay protection is provided by the backend billing server rather
-      than within the protocol itself.
-
-      While [RFC3162] defines the use of IPsec with RADIUS, support for
-      IPsec is not required.  In order to provide universal support for
-      transmission-level security, and enable both intra- and inter-
-      domain AAA deployments, Diameter provides support for TLS/TCP and
-      DTLS/SCTP.  Security is discussed in Section 13.
-</pre>
-
-<p>
-Whether or not IPsec is used is transparent to diameter.</p>
-
-<p>
-The transport protocol used on a given peer connection is also
-transparent to diameter in that transport to diameter is simply a
-module that implements the transport protocol documented in
-&man_transport;.
-A diameter user configures this module as the &mod_transport_opt;
-<c>transport_module</c>.</p>
-
-<p>
-While a user can implement their own transport modules, diameter
-includes implementations for TCP and SCTP:
-&man_tcp; based on &gen_tcp; and &man_sctp; based on &gen_sctp;.
-The former supports TLS but the latter does not currently support
-DTLS.</p>
-
-<pre>
-
-   Reliable transport
-
-      RADIUS runs over UDP, and does not define retransmission behavior;
-      as a result, reliability varies between implementations.  As
-      described in [RFC2975], this is a major issue in accounting, where
-      packet loss may translate directly into revenue loss.  In order to
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                    [Page 7]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      provide well-defined transport behavior, Diameter runs over
-      reliable transport mechanisms (TCP, Stream Control Transmission
-      Protocol (SCTP)) as defined in [RFC3539].
-
-   Agent support
-
-      RADIUS does not provide for explicit support for agents, including
-      proxies, redirects, and relays.  Since the expected behavior is
-      not defined, it varies between implementations.  Diameter defines
-      agent behavior explicitly; this is described in Section 2.8.
-</pre>
-
-&nada;
-
-<pre>
-
-   Server-initiated messages
-
-      While server-initiated messages are defined in RADIUS [RFC5176],
-      support is optional.  This makes it difficult to implement
-      features such as unsolicited disconnect or re-authentication/
-      re-authorization on demand across a heterogeneous deployment.  To
-      address this issue, support for server-initiated messages is
-      mandatory in Diameter.
-</pre>
-
-<p>
-A diameter user can both send and receive messages.</p>
-
-<pre>
-
-   Transition support
-
-      While Diameter does not share a common protocol data unit (PDU)
-      with RADIUS, considerable effort has been expended in enabling
-      backward compatibility with RADIUS so that the two protocols may
-      be deployed in the same network.  Initially, it is expected that
-      Diameter will be deployed within new network devices, as well as
-      within gateways enabling communication between legacy RADIUS
-      devices and Diameter agents.  This capability enables Diameter
-      support to be added to legacy networks, by addition of a gateway
-      or server speaking both RADIUS and Diameter.
-</pre>
-
-<p>
-RADIUS Attributes can be redefined as Diameter AVP's using diameter's
-&man_dict; interface but diameter provides no such definitions.</p>
-
-<pre>
-
-   In addition to addressing the above requirements, Diameter also
-   provides support for the following:
-
-   Capability negotiation
-
-      RADIUS does not support error messages, capability negotiation, or
-      a mandatory/non-mandatory flag for attributes.  Since RADIUS
-      clients and servers are not aware of each other's capabilities,
-      they may not be able to successfully negotiate a mutually
-      acceptable service or, in some cases, even be aware of what
-      service has been implemented.  Diameter includes support for error
-      handling (Section 7), capability negotiation (Section 5.3), and
-      mandatory/non-mandatory Attribute-Value Pairs (AVPs)
-      (Section 4.1).
-
-
-
-
-
-Fajardo, et al.              Standards Track                    [Page 8]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Peer discovery and configuration
-
-      RADIUS implementations typically require that the name or address
-      of servers or clients be manually configured, along with the
-      corresponding shared secrets.  This results in a large
-      administrative burden and creates the temptation to reuse the
-      RADIUS shared secret, which can result in major security
-      vulnerabilities if the Request Authenticator is not globally and
-      temporally unique as required in [RFC2865].  Through DNS, Diameter
-      enables dynamic discovery of peers (see Section 5.2).  Derivation
-      of dynamic session keys is enabled via transmission-level
-      security.
-
-   Over time, the capabilities of Network Access Server (NAS) devices
-   have increased substantially.  As a result, while Diameter is a
-   considerably more sophisticated protocol than RADIUS, it remains
-   feasible to implement it within embedded devices.
-</pre>
-
-&nada;
-
-<pre>
-
-1.1.  Diameter Protocol
-
-   The Diameter base protocol provides the following facilities:
-
-   o  Ability to exchange messages and deliver AVPs
-</pre>
-
-<p>
-There are two interfaces directly involved in message exchange when
-using diameter: the function &mod_call; for sending outgoing requests,
-and the application callback interface, documented in &man_app; for
-receiving incoming request and answers.</p>
-
-<pre>
-
-   o  Capabilities negotiation
-</pre>
-
-<p>
-Capabilities negotiation is the responsibility of diameter:
-a user configures a diameter service and/or transport with
-&capabilities; to provide AVP values for CER and CEA messages but it
-is diameter itself that sends these messages.
-A user receives notification of a successful capabilities exchange by
-way of &app_peer_up; callbacks.</p>
-
-<pre>
-
-   o  Error notification
-</pre>
-
-<p>
-A user can subscribe to &events;, using &mod_subscribe;, in order to
-receive notification of various failures.
-Errors in Diameter messaging are communicated via the application
-callbacks &app_handle_request;, &app_handle_answer; and
-&app_handle_error;.</p>
-
-
-<pre>
-
-   o  Extensibility, required in [RFC2989], through addition of new
-      applications, commands, and AVPs
-</pre>
-
-<p>
-Support for applications, commands and AVP's is extensible using
-diameter's dictionary interface, as documented in &man_dict;.
-Dictionaries are compiled to Erlang encode/decode modules using
-&man_compile; or &man_make;.</p>
-
-<pre>
-
-   o  Basic services necessary for applications, such as the handling of
-      user sessions or accounting
-</pre>
-
-<p>
-Compiled dictionaries are provided for the RFC 3588 and RFC 6733
-Diameter applications: common, base accounting and relay.
-Dictionaries for a number of standardized
-applications are provided in uncompiled form below the <c>examples</c>
-subdirectory of the diameter application directory.</p>
-
-<pre>
-
-   All data delivered by the protocol is in the form of AVPs.  Some of
-   these AVP values are used by the Diameter protocol itself, while
-   others deliver data associated with particular applications that
-   employ Diameter.  AVPs may be arbitrarily added to Diameter messages,
-   the only restriction being that the Command Code Format (CCF)
-   specification (Section 3.2) be satisfied.  AVPs are used by the base
-   Diameter protocol to support the following required features:
-
-   o  Transporting of user authentication information, for the purposes
-      of enabling the Diameter server to authenticate the user
-
-   o  Transporting of service-specific authorization information,
-      between client and servers, allowing the peers to decide whether a
-      user's access request should be granted
-
-
-
-Fajardo, et al.              Standards Track                    [Page 9]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   o  Exchanging resource usage information, which may be used for
-      accounting purposes, capacity planning, etc.
-
-   o  Routing, relaying, proxying, and redirecting of Diameter messages
-      through a server hierarchy
-
-   The Diameter base protocol satisfies the minimum requirements for a
-   AAA protocol, as specified by [RFC2989].  The base protocol may be
-   used by itself for accounting purposes only, or it may be used with a
-   Diameter application, such as Mobile IPv4 [RFC4004], or network
-   access [RFC4005].  It is also possible for the base protocol to be
-   extended for use in new applications, via the addition of new
-   commands or AVPs.  The initial focus of Diameter was network access
-   and accounting applications.  A truly generic AAA protocol used by
-   many applications might provide functionality not provided by
-   Diameter.  Therefore, it is imperative that the designers of new
-   applications understand their requirements before using Diameter.
-   See Section 1.3.4 for more information on Diameter applications.
-
-   Any node can initiate a request.  In that sense, Diameter is a peer-
-   to-peer protocol.  In this document, a Diameter client is a device at
-   the edge of the network that performs access control, such as a
-   Network Access Server (NAS) or a Foreign Agent (FA).  A Diameter
-   client generates Diameter messages to request authentication,
-   authorization, and accounting services for the user.  A Diameter
-   agent is a node that does not provide local user authentication or
-   authorization services; agents include proxies, redirects, and relay
-   agents.  A Diameter server performs authentication and/or
-   authorization of the user.  A Diameter node may act as an agent for
-   certain requests while acting as a server for others.
-
-   The Diameter protocol also supports server-initiated messages, such
-   as a request to abort service to a particular user.
-</pre>
-
-&nada;
-
-<pre>
-
-1.1.1.  Description of the Document Set
-
-   The Diameter specification consists of an updated version of the base
-   protocol specification (this document) and the Transport Profile
-   [RFC3539].  This document obsoletes both RFC 3588 and RFC 5719.  A
-   summary of the base protocol updates included in this document can be
-   found in Section 1.1.3.
-
-   This document defines the base protocol specification for AAA, which
-   includes support for accounting.  There are also a myriad of
-   applications documents describing applications that use this base
-   specification for Authentication, Authorization, and Accounting.
-   These application documents specify how to use the Diameter protocol
-   within the context of their application.
-
-
-
-Fajardo, et al.              Standards Track                   [Page 10]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   The Transport Profile document [RFC3539] discusses transport layer
-   issues that arise with AAA protocols and recommendations on how to
-   overcome these issues.  This document also defines the Diameter
-   failover algorithm and state machine.
-
-   "Clarifications on the Routing of Diameter Request Based on the
-   Username and the Realm" [RFC5729] defines specific behavior on how to
-   route requests based on the content of the User-Name AVP (Attribute
-   Value Pair).
-
-1.1.2.  Conventions Used in This Document
-
-   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
-   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
-   document are to be interpreted as described in [RFC2119].
-</pre>
-
-&nada;
-
-<pre>
-
-1.1.3.  Changes from RFC 3588
-
-   This document obsoletes RFC 3588 but is fully backward compatible
-   with that document.  The changes introduced in this document focus on
-   fixing issues that have surfaced during the implementation of
-   Diameter (RFC 3588).  An overview of some the major changes are given
-   below.
-</pre>
-
-<p>
-RFC 6733 is not fully backwards compatible with RFC 3588.
-(For example, in what values of Result-Code values are permissible with
-the E-bit.)
-The implications of incompatibilities for diameter are noted where
-appropriate.</p>
-
-<pre>
-
-   o  Deprecated the use of the Inband-Security AVP for negotiating
-      Transport Layer Security (TLS) [RFC5246].  It has been generally
-      considered that bootstrapping of TLS via Inband-Security AVP
-      creates certain security risks because it does not completely
-      protect the information carried in the CER/CEA (Capabilities-
-      Exchange-Request/Capabilities-Exchange-Answer).  This version of
-      Diameter adopts the common approach of defining a well-known
-      secured port that peers should use when communicating via TLS/TCP
-      and DTLS/SCTP.  This new approach augments the existing in-band
-      security negotiation, but it does not completely replace it.  The
-      old method is kept for backward compatibility reasons.
-</pre>
-
-<p>
-&man_tcp; supports both methods of negotiating TLS:
-bootstrapping via Inband-Security and directly following connection
-establishment.</p>
-
-<pre>
-
-   o  Deprecated the exchange of CER/CEA messages in the open state.
-      This feature was implied in the peer state machine table of RFC
-      3588, but it was not clearly defined anywhere else in that
-      document.  As work on this document progressed, it became clear
-      that the multiplicity of meaning and use of Application-Id AVPs in
-      the CER/CEA messages (and the messages themselves) is seen as an
-      abuse of the Diameter extensibility rules and thus required
-      simplification.  Capabilities exchange in the open state has been
-      re-introduced in a separate specification [RFC6737], which clearly
-      defines new commands for this feature.
-</pre>
-
-<p>
-Capabilities exchange in the open state is not supported: an incoming
-CER in the open state will cause diameter to ask the relevant
-transport process to terminate, which implies the loss of the peer
-connection in the case of &man_tcp; and &man_sctp;.</p>
-
-<p>
-Capabilities update, as defined by RFC 6737, is not yet supported.
-Support will require diameter to handle CUR/CUA in the same way that
-it handles CER/CEA.</p>
-
-<pre>
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 11]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   o  Simplified security requirements.  The use of a secured transport
-      for exchanging Diameter messages remains mandatory.  However, TLS/
-      TCP and DTLS/SCTP have become the primary methods of securing
-      Diameter with IPsec as a secondary alternative.  See Section 13
-      for details.  The support for the End-to-End security framework
-      (E2E-Sequence AVP and 'P'-bit in the AVP header) has also been
-      deprecated.
-</pre>
-
-<p>
-The End-to-End security framework is not supported since it's use is
-largely unspecified: diameter will set the P-bit in outgoing AVP's as
-directed by the relevant dictionary and/or &app_prepare_request; or
-&app_handle_request; callbacks, but whether or not the P-bit is set on
-incoming AVP's has no consequence.</p>
-
-<p>
-As noted above, DTLS is not currently supported and whether or not
-IPsec is used is transparent to diameter.</p>
-
-<pre>
-
-   o  Changed Diameter extensibility.  This includes fixes to the
-      Diameter extensibility description (Section 1.3 and others) to
-      better aid Diameter application designers; in addition, the new
-      specification relaxes the policy with respect to the allocation of
-      Command Codes for vendor-specific uses.
-
-   o  Clarified Application Id usage.  Clarify the proper use of
-      Application Id information, which can be found in multiple places
-      within a Diameter message.  This includes correlating Application
-      Ids found in the message headers and AVPs.  These changes also
-      clearly specify the proper Application Id value to use for
-      specific base protocol messages (ASR/ASA, STR/STA) as well as
-      clarify the content and use of Vendor-Specific-Application-Id.
-
-   o  Clarified routing fixes.  This document more clearly specifies
-      what information (AVPs and Application Ids) can be used for making
-      general routing decisions.  A rule for the prioritization of
-      redirect routing criteria when multiple route entries are found
-      via redirects has also been added (see Section 6.13).
-
-   o  Simplified Diameter peer discovery.  The Diameter discovery
-      process now supports only widely used discovery schemes; the rest
-      have been deprecated (see Section 5.2 for details).
-</pre>
-
-<p>
-Peer discover is not currently supported: peers to which a node should
-connect must be configured.
-Connection requests are accepted from arbitrary peers but a
-&mod_transport_opt; <c>capabilities_cb</c> can be used to reject a
-peer based on an incoming CER or CEA.</p>
-
-<pre>
-
-   There are many other miscellaneous fixes that have been introduced in
-   this document that may not be considered significant, but they have
-   value nonetheless.  Examples are removal of obsolete types, fixes to
-   the state machine, clarification of the election process, message
-   validation, fixes to Failed-AVP and Result-Code AVP values, etc.  All
-   of the errata filed against RFC 3588 prior to the publication of this
-   document have been addressed.  A comprehensive list of changes is not
-   shown here for practical reasons.
-
-1.2.  Terminology
-
-   AAA
-
-      Authentication, Authorization, and Accounting.
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 12]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   ABNF
-
-      Augmented Backus-Naur Form [RFC5234].  A metalanguage with its own
-      formal syntax and rules.  It is based on the Backus-Naur Form and
-      is used to define message exchanges in a bi-directional
-      communications protocol.
-
-   Accounting
-
-      The act of collecting information on resource usage for the
-      purpose of capacity planning, auditing, billing, or cost
-      allocation.
-
-   Accounting Record
-
-      An accounting record represents a summary of the resource
-      consumption of a user over the entire session.  Accounting servers
-      creating the accounting record may do so by processing interim
-      accounting events or accounting events from several devices
-      serving the same user.
-
-   Authentication
-
-      The act of verifying the identity of an entity (subject).
-
-   Authorization
-
-      The act of determining whether a requesting entity (subject) will
-      be allowed access to a resource (object).
-
-   Attribute-Value Pair (AVP)
-
-      The Diameter protocol consists of a header followed by one or more
-      Attribute-Value-Pairs (AVPs).  An AVP includes a header and is
-      used to encapsulate protocol-specific data (e.g., routing
-      information) as well as authentication, authorization, or
-      accounting information.
-</pre>
-
-&nada;
-
-<pre>
-
-   Command Code Format (CCF)
-
-      A modified form of ABNF used to define Diameter commands (see
-      Section 3.2).
-</pre>
-
-<p>
-The <c>@messages</c> section of the &man_dict; format has the CCF as
-content.</p>
-
-<pre>
-
-   Diameter Agent
-
-      A Diameter Agent is a Diameter node that provides relay, proxy,
-      redirect, or translation services.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 13]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Diameter Client
-
-      A Diameter client is a Diameter node that supports Diameter client
-      applications as well as the base protocol.  Diameter clients are
-      often implemented in devices situated at the edge of a network and
-      provide access control services for that network.  Typical
-      examples of Diameter clients include the Network Access Server
-      (NAS) and the Mobile IP Foreign Agent (FA).
-
-   Diameter Node
-
-      A Diameter node is a host process that implements the Diameter
-      protocol and acts as either a client, an agent, or a server.
-
-   Diameter Peer
-
-      Two Diameter nodes sharing a direct TCP or SCTP transport
-      connection are called Diameter peers.
-
-   Diameter Server
-
-      A Diameter server is a Diameter node that handles authentication,
-      authorization, and accounting requests for a particular realm.  By
-      its very nature, a Diameter server must support Diameter server
-      applications in addition to the base protocol.
-</pre>
-
-<p>
-A Diameter Node is implemented by configuring a service
-using &mod_start_service; and one or more transports using
-&mod_add_transport;.
-The service typically represents a Diameter Node but since
-capabilities can be configured on individual transports it's more
-accurate to say that the node is a collection of transports
-advertising the same Origin-Host.</p>
-
-<p>
-The role of a node (agent, client or server) is not something that's
-configured explicitly.
-Transports are either connecting or listening, depending on whether
-diameter should establish a peer connection and send CER or accept
-connections and receive CER, but the role a node implements depends
-largely on dictionary configuration and &man_app; callback
-implementation.</p>
-
-<pre>
-
-   Downstream
-
-      Downstream is used to identify the direction of a particular
-      Diameter message from the home server towards the Diameter client.
-
-   Home Realm
-
-      A Home Realm is the administrative domain with which the user
-      maintains an account relationship.
-
-   Home Server
-
-      A Diameter server that serves the Home Realm.
-
-   Interim Accounting
-
-      An interim accounting message provides a snapshot of usage during
-      a user's session.  Typically, it is implemented in order to
-      provide for partial accounting of a user's session in case a
-      device reboot or other network problem prevents the delivery of a
-      session summary message or session record.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 14]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Local Realm
-
-      A local realm is the administrative domain providing services to a
-      user.  An administrative domain may act as a local realm for
-      certain users while being a home realm for others.
-
-   Multi-session
-
-      A multi-session represents a logical linking of several sessions.
-      Multi-sessions are tracked by using the Acct-Multi-Session-Id.  An
-      example of a multi-session would be a Multi-link PPP bundle.  Each
-      leg of the bundle would be a session while the entire bundle would
-      be a multi-session.
-
-   Network Access Identifier
-
-      The Network Access Identifier, or NAI [RFC4282], is used in the
-      Diameter protocol to extract a user's identity and realm.  The
-      identity is used to identify the user during authentication and/or
-      authorization while the realm is used for message routing
-      purposes.
-
-   Proxy Agent or Proxy
-
-      In addition to forwarding requests and responses, proxies make
-      policy decisions relating to resource usage and provisioning.
-      Typically, this is accomplished by tracking the state of NAS
-      devices.  While proxies usually do not respond to client requests
-      prior to receiving a response from the server, they may originate
-      Reject messages in cases where policies are violated.  As a
-      result, proxies need to understand the semantics of the messages
-      passing through them, and they may not support all Diameter
-      applications.
-
-   Realm
-
-      The string in the NAI that immediately follows the '@' character.
-      NAI realm names are required to be unique and are piggybacked on
-      the administration of the DNS namespace.  Diameter makes use of
-      the realm, also loosely referred to as domain, to determine
-      whether messages can be satisfied locally or whether they must be
-      routed or redirected.  In RADIUS, realm names are not necessarily
-      piggybacked on the DNS namespace but may be independent of it.
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 15]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Real-Time Accounting
-
-      Real-time accounting involves the processing of information on
-      resource usage within a defined time window.  Typically, time
-      constraints are imposed in order to limit financial risk.  The
-      Diameter Credit-Control Application [RFC4006] is an example of an
-      application that defines real-time accounting functionality.
-
-   Relay Agent or Relay
-
-      Relays forward requests and responses based on routing-related
-      AVPs and routing table entries.  Since relays do not make policy
-      decisions, they do not examine or alter non-routing AVPs.  As a
-      result, relays never originate messages, do not need to understand
-      the semantics of messages or non-routing AVPs, and are capable of
-      handling any Diameter application or message type.  Since relays
-      make decisions based on information in routing AVPs and realm
-      forwarding tables, they do not keep state on NAS resource usage or
-      sessions in progress.
-
-   Redirect Agent
-
-      Rather than forwarding requests and responses between clients and
-      servers, redirect agents refer clients to servers and allow them
-      to communicate directly.  Since redirect agents do not sit in the
-      forwarding path, they do not alter any AVPs transiting between
-      client and server.  Redirect agents do not originate messages and
-      are capable of handling any message type, although they may be
-      configured only to redirect messages of certain types, while
-      acting as relay or proxy agents for other types.  As with relay
-      agents, redirect agents do not keep state with respect to sessions
-      or NAS resources.
-</pre>
-
-&nada;
-
-<pre>
-
-   Session
-
-      A session is a related progression of events devoted to a
-      particular activity.  Diameter application documents provide
-      guidelines as to when a session begins and ends.  All Diameter
-      packets with the same Session-Id are considered to be part of the
-      same session.
-</pre>
-
-<p>
-Sessions are not something that diameter is aware of.
-The function &mod_session_id; can be used to construct appropriate
-values for Session-Id AVP's but logic connecting events in the same
-session is the responsibility of the diameter user.</p>
-
-<pre>
-
-   Stateful Agent
-
-      A stateful agent is one that maintains session state information,
-      by keeping track of all authorized active sessions.  Each
-      authorized session is bound to a particular service, and its state
-      is considered active either until it is notified otherwise or
-      until expiration.
-
-
-
-Fajardo, et al.              Standards Track                   [Page 16]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Sub-session
-
-      A sub-session represents a distinct service (e.g., QoS or data
-      characteristics) provided to a given session.  These services may
-      happen concurrently (e.g., simultaneous voice and data transfer
-      during the same session) or serially.  These changes in sessions
-      are tracked with the Accounting-Sub-Session-Id.
-
-   Transaction State
-
-      The Diameter protocol requires that agents maintain transaction
-      state, which is used for failover purposes.  Transaction state
-      implies that upon forwarding a request, the Hop-by-Hop Identifier
-      is saved; the field is replaced with a locally unique identifier,
-      which is restored to its original value when the corresponding
-      answer is received.  The request's state is released upon receipt
-      of the answer.  A stateless agent is one that only maintains
-      transaction state.
-
-   Translation Agent
-
-      A translation agent (TLA in Figure 4) is a stateful Diameter node
-      that performs protocol translation between Diameter and another
-      AAA protocol, such as RADIUS.
-
-   Upstream
-
-      Upstream is used to identify the direction of a particular
-      Diameter message from the Diameter client towards the home server.
-
-   User
-
-      The entity or device requesting or using some resource, in support
-      of which a Diameter client has generated a request.
-</pre>
-
-&nada;
-
-<pre>
-
-1.3.  Approach to Extensibility
-
-   The Diameter protocol is designed to be extensible, using several
-   mechanisms, including:
-
-   o  Defining new AVP values
-
-   o  Creating new AVPs
-
-   o  Creating new commands
-
-   o  Creating new applications
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 17]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   From the point of view of extensibility, Diameter authentication,
-   authorization, and accounting applications are treated in the same
-   way.
-</pre>
-
-<p>
-Extensibility in diameter is by way of the dictionary interface
-documented in &man_dict;: a diameter user creates applications,
-commands and AVP's by implementing a new dictionary,
-compiling the dictionary to a codec module using &man_compile; or
-&man_make;, and configuring the resulting dictionary module on a
-service.
-The dictionary modules provided with diameter are all implemented in
-this manner.</p>
-
-<pre>
-   Note: Protocol designers should try to reuse existing functionality,
-   namely AVP values, AVPs, commands, and Diameter applications.  Reuse
-   simplifies standardization and implementation.  To avoid potential
-   interoperability issues, it is important to ensure that the semantics
-   of the reused features are well understood.  Given that Diameter can
-   also carry RADIUS attributes as Diameter AVPs, such reuse
-   considerations also apply to existing RADIUS attributes that may be
-   useful in a Diameter application.
-</pre>
-
-<p>
-Reuse in dictionary files is achieved by way of the <c>@inherits</c>
-section.
-AVP's are inherited, commands are not.</p>
-
-<pre>
-
-1.3.1.  Defining New AVP Values
-
-   In order to allocate a new AVP value for AVPs defined in the Diameter
-   base protocol, the IETF needs to approve a new RFC that describes the
-   AVP value.  IANA considerations for these AVP values are discussed in
-   Section 11.3.
-
-   The allocation of AVP values for other AVPs is guided by the IANA
-   considerations of the document that defines those AVPs.  Typically,
-   allocation of new values for an AVP defined in an RFC would require
-   IETF Review [RFC5226], whereas values for vendor-specific AVPs can be
-   allocated by the vendor.
-
-1.3.2.  Creating New AVPs
-
-   A new AVP being defined MUST use one of the data types listed in
-   Sections 4.2 or 4.3.  If an appropriate derived data type is already
-   defined, it SHOULD be used instead of a base data type to encourage
-   reusability and good design practice.
-
-   In the event that a logical grouping of AVPs is necessary, and
-   multiple "groups" are possible in a given command, it is recommended
-   that a Grouped AVP be used (see Section 4.4).
-
-   The creation of new AVPs can happen in various ways.  The recommended
-   approach is to define a new general-purpose AVP in a Standards Track
-   RFC approved by the IETF.  However, as described in Section 11.1.1,
-   there are other mechanisms.
-</pre>
-
-<p>
-Creating new AVP's is an issue for the dictionary designer, not
-diameter.</p>
-
-<pre>
-
-1.3.3.  Creating New Commands
-
-   A new Command Code MUST be allocated when required AVPs (those
-   indicated as {AVP} in the CCF definition) are added to, deleted from,
-   or redefined in (for example, by changing a required AVP into an
-   optional one) an existing command.
-
-
-
-Fajardo, et al.              Standards Track                   [Page 18]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Furthermore, if the transport characteristics of a command are
-   changed (for example, with respect to the number of round trips
-   required), a new Command Code MUST be registered.
-
-   A change to the CCF of a command, such as described above, MUST
-   result in the definition of a new Command Code.  This subsequently
-   leads to the need to define a new Diameter application for any
-   application that will use that new command.
-
-   The IANA considerations for Command Codes are discussed in
-   Section 3.1.
-</pre>
-
-<p>
-Creating new commands is an issue for the dictionary designer, not
-diameter.</p>
-
-<pre>
-
-1.3.4.  Creating New Diameter Applications
-
-   Every Diameter application specification MUST have an IANA-assigned
-   Application Id (see Section 2.4).  The managed Application ID space
-   is flat, and there is no relationship between different Diameter
-   applications with respect to their Application Ids.  As such, there
-   is no versioning support provided by these Application Ids
-   themselves; every Diameter application is a standalone application.
-   If the application has a relationship with other Diameter
-   applications, such a relationship is not known to Diameter.
-</pre>
-
-<p>
-Creating new applications is an issue for the dictionary designer,
-not diameter.</p>
-
-<p>
-An application's Application Id is specified in the <c>@id</c> section
-of a dictionary file.</p>
-
-<pre>
-
-   Before describing the rules for creating new Diameter applications,
-   it is important to discuss the semantics of the AVP occurrences as
-   stated in the CCF and the M-bit flag (Section 4.1) for an AVP.  There
-   is no relationship imposed between the two; they are set
-   independently.
-
-   o  The CCF indicates what AVPs are placed into a Diameter command by
-      the sender of that command.  Often, since there are multiple modes
-      of protocol interactions, many of the AVPs are indicated as
-      optional.
-
-   o  The M-bit allows the sender to indicate to the receiver whether or
-      not understanding the semantics of an AVP and its content is
-      mandatory.  If the M-bit is set by the sender and the receiver
-      does not understand the AVP or the values carried within that AVP,
-      then a failure is generated (see Section 7).
-</pre>
-
-<p>
-The M-bit is set on outgoing AVP's as directed by the relevant
-dictionary.
-For incoming AVP's, an M-bit set on an AVP that isn't
-explicitly included in the definition of the command in question is
-interpreted as a 5001 error, DIAMETER_AVP_UNSUPPORTED, the
-consequences of which depend on the value of the &mod_application_opt;
-<c>answer_errors</c> or <c>request_errors</c>.</p>
-
-<pre>
-
-   It is the decision of the protocol designer when to develop a new
-   Diameter application rather than extending Diameter in other ways.
-   However, a new Diameter application MUST be created when one or more
-   of the following criteria are met:
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 19]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   M-bit Setting
-
-      An AVP with the M-bit in the MUST column of the AVP flag table is
-      added to an existing Command/Application.  An AVP with the M-bit
-      in the MAY column of the AVP flag table is added to an existing
-      Command/Application.
-
-      Note: The M-bit setting for a given AVP is relevant to an
-      Application and each command within that application that includes
-      the AVP.  That is, if an AVP appears in two commands for
-      application Foo and the M-bit settings are different in each
-      command, then there should be two AVP flag tables describing when
-      to set the M-bit.
-
-   Commands
-
-      A new command is used within the existing application because
-      either an additional command is added, an existing command has
-      been modified so that a new Command Code had to be registered, or
-      a command has been deleted.
-
-   AVP Flag bits
-
-      If an existing application changes the meaning/semantics of its
-      AVP Flags or adds new flag bits, then a new Diameter application
-      MUST be created.
-
-   If the CCF definition of a command allows it, an implementation may
-   add arbitrary optional AVPs with the M-bit cleared (including vendor-
-   specific AVPs) to that command without needing to define a new
-   application.  Please refer to Section 11.1.1 for details.
-</pre>
-
-&nada;
-
-<pre>
-
-2.  Protocol Overview
-
-   The base Diameter protocol concerns itself with establishing
-   connections to peers, capabilities negotiation, how messages are sent
-   and routed through peers, and how the connections are eventually torn
-   down.  The base protocol also defines certain rules that apply to all
-   message exchanges between Diameter nodes.
-
-   Communication between Diameter peers begins with one peer sending a
-   message to another Diameter peer.  The set of AVPs included in the
-   message is determined by a particular Diameter application.  One AVP
-   that is included to reference a user's session is the Session-Id.
-
-   The initial request for authentication and/or authorization of a user
-   would include the Session-Id AVP.  The Session-Id is then used in all
-   subsequent messages to identify the user's session (see Section 8 for
-
-
-
-Fajardo, et al.              Standards Track                   [Page 20]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   more information).  The communicating party may accept the request or
-   reject it by returning an answer message with the Result-Code AVP set
-   to indicate that an error occurred.  The specific behavior of the
-   Diameter server or client receiving a request depends on the Diameter
-   application employed.
-
-   Session state (associated with a Session-Id) MUST be freed upon
-   receipt of the Session-Termination-Request, Session-Termination-
-   Answer, expiration of authorized service time in the Session-Timeout
-   AVP, and according to rules established in a particular Diameter
-   application.
-</pre>
-
-<p>
-Like Session-Id, session state is maintained by the diameter user:
-diameter has no session state of its own and does not interpret
-STR/STA in any way.</p>
-
-<pre>
-
-   The base Diameter protocol may be used by itself for accounting
-   applications.  For authentication and authorization, it is always
-   extended for a particular application.
-
-   Diameter clients MUST support the base protocol, which includes
-   accounting.  In addition, they MUST fully support each Diameter
-   application that is needed to implement the client's service, e.g.,
-   Network Access Server Requirements (NASREQ) [RFC2881] and/or Mobile
-   IPv4.  A Diameter client MUST be referred to as "Diameter X Client"
-   where X is the application that it supports and not a "Diameter
-   Client".
-
-   Diameter servers MUST support the base protocol, which includes
-   accounting.  In addition, they MUST fully support each Diameter
-   application that is needed to implement the intended service, e.g.,
-   NASREQ and/or Mobile IPv4.  A Diameter server MUST be referred to as
-   "Diameter X Server" where X is the application that it supports, and
-   not a "Diameter Server".
-
-   Diameter relays and redirect agents are transparent to the Diameter
-   applications, but they MUST support the Diameter base protocol, which
-   includes accounting, and all Diameter applications.
-
-   Diameter proxies MUST support the base protocol, which includes
-   accounting.  In addition, they MUST fully support each Diameter
-   application that is needed to implement proxied services, e.g.,
-   NASREQ and/or Mobile IPv4.  A Diameter proxy MUST be referred to as
-   "Diameter X Proxy" where X is the application which it supports, and
-   not a "Diameter Proxy".
-
-</pre>
-
-&nada;
-
-<pre>
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 21]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-2.1.  Transport
-
-   The Diameter Transport profile is defined in [RFC3539].
-
-   The base Diameter protocol is run on port 3868 for both TCP [RFC0793]
-   and SCTP [RFC4960].  For TLS [RFC5246] and Datagram Transport Layer
-   Security (DTLS) [RFC6347], a Diameter node that initiates a
-   connection prior to any message exchanges MUST run on port 5658.  It
-   is assumed that TLS is run on top of TCP when it is used, and DTLS is
-   run on top of SCTP when it is used.
-</pre>
-
-<p>
-Which port a transport connects to or listens on is a matter of
-configuration.
-Both &man_tcp; and &man_sctp; will default to 3868 if no other value
-is specified.</p>
-
-<pre>
-
-   If the Diameter peer does not support receiving TLS/TCP and DTLS/SCTP
-   connections on port 5658 (i.e., the peer complies only with RFC
-   3588), then the initiator MAY revert to using TCP or SCTP on port
-   3868.  Note that this scheme is kept only for the purpose of backward
-   compatibility and that there are inherent security vulnerabilities
-   when the initial CER/CEA messages are sent unprotected (see
-   Section 5.6).
-
-   Diameter clients MUST support either TCP or SCTP; agents and servers
-   SHOULD support both.
-
-   A Diameter node MAY initiate connections from a source port other
-   than the one that it declares it accepts incoming connections on, and
-   it MUST always be prepared to receive connections on port 3868 for
-   TCP or SCTP and port 5658 for TLS/TCP and DTLS/SCTP connections.
-   When DNS-based peer discovery (Section 5.2) is used, the port numbers
-   received from SRV records take precedence over the default ports
-   (3868 and 5658).
-
-   A given Diameter instance of the peer state machine MUST NOT use more
-   than one transport connection to communicate with a given peer,
-   unless multiple instances exist on the peer, in which, case a
-   separate connection per process is allowed.
-</pre>
-
-<p>
-The &mod_service_opt; <c>restrict_connection</c> controls to what
-extent a diameter service allows multiple connections to the same
-peer.
-(As identified by the value of Origin-Host received from it
-during capabilities exchange.)</p>
-
-<pre>
-
-   When no transport connection exists with a peer, an attempt to
-   connect SHOULD be made periodically.  This behavior is handled via
-   the Tc timer (see Section 12 for details), whose recommended value is
-   30 seconds.  There are certain exceptions to this rule, such as when
-   a peer has terminated the transport connection stating that it does
-   not wish to communicate.
-
-</pre>
-
-<p>
-The frequency of reconnection attempts is configured with the
-&mod_transport_opt; <c>connect_timer</c> and
-<c>watchdog_timer</c>.</p>
-
-<pre>
-
-   When connecting to a peer and either zero or more transports are
-   specified, TLS SHOULD be tried first, followed by DTLS, then by TCP,
-   and finally by SCTP.  See Section 5.2 for more information on peer
-   discovery.
-</pre>
-
-<p>
-The order in which different transports are attempted depends on the
-order of &mod_transport_opt; <c>transport_module</c> and
-<c>transport_config</c> tuples in transport configuration.</p>
-
-<pre>
-
-
-
-Fajardo, et al.              Standards Track                   [Page 22]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Diameter implementations SHOULD be able to interpret ICMP protocol
-   port unreachable messages as explicit indications that the server is
-   not reachable, subject to security policy on trusting such messages.
-   Further guidance regarding the treatment of ICMP errors can be found
-   in [RFC5927] and [RFC5461].  Diameter implementations SHOULD also be
-   able to interpret a reset from the transport and timed-out connection
-   attempts.  If Diameter receives data from the lower layer that cannot
-   be parsed or identified as a Diameter error made by the peer, the
-   stream is compromised and cannot be recovered.  The transport
-   connection MUST be closed using a RESET call (send a TCP RST bit) or
-   an SCTP ABORT message (graceful closure is compromised).
-</pre>
-
-<p>
-ICMP messages and other transport-level errors aren't directly
-visible to diameter but transport implementations like &man_tcp; and
-&man_sctp; propagate these as terminating transport processes.</p>
-
-<pre>
-
-2.1.1.  SCTP Guidelines
-
-   Diameter messages SHOULD be mapped into SCTP streams in a way that
-   avoids head-of-the-line (HOL) blocking.  Among different ways of
-   performing the mapping that fulfill this requirement it is
-   RECOMMENDED that a Diameter node send every Diameter message (request
-   or response) over stream zero with the unordered flag set.  However,
-   Diameter nodes MAY select and implement other design alternatives for
-   avoiding HOL blocking such as using multiple streams with the
-   unordered flag cleared (as originally instructed in RFC 3588).  On
-   the receiving side, a Diameter entity MUST be ready to receive
-   Diameter messages over any stream, and it is free to return responses
-   over a different stream.  This way, both sides manage the available
-   streams in the sending direction, independently of the streams chosen
-   by the other side to send a particular Diameter message.  These
-   messages can be out-of-order and belong to different Diameter
-   sessions.
-</pre>
-
-<p>
-&man_sctp; allows the sender to specify a stream number explicitly.
-The stream on which an incoming message is received it passed to
-&app_handle_request; and &app_handle_answer; callbacks as
-<c>transport_data</c> in a <c>#diameter_packet{}</c>.</p>
-
-<p>
-Ordered or unordered delivery can be configured per transport.</p>
-
-<pre>
-
-   Out-of-order delivery has special concerns during a connection
-   establishment and termination.  When a connection is established, the
-   responder side sends a CEA message and moves to R-Open state as
-   specified in Section 5.6.  If an application message is sent shortly
-   after the CEA and delivered out-of-order, the initiator side, still
-   in Wait-I-CEA state, will discard the application message and close
-   the connection.  In order to avoid this race condition, the receiver
-   side SHOULD NOT use out-of-order delivery methods until the first
-   message has been received from the initiator, proving that it has
-   moved to I-Open state.  To trigger such a message, the receiver side
-   could send a DWR immediately after sending a CEA.  Upon reception of
-   the corresponding DWA, the receiver side should start using out-of-
-   order delivery methods to counter the HOL blocking.
-</pre>
-
-<p>
-&man_sctp; does not currently allow the user to switch between ordered
-and unordered delivery, or to specify the manner of sending per
-message: one or the other must be configured, the defaults being
-ordered.</p>
-
-<pre>
-
-   Another race condition may occur when DPR and DPA messages are used.
-   Both DPR and DPA are small in size; thus, they may be delivered to
-   the peer faster than application messages when an out-of-order
-   delivery mechanism is used.  Therefore, it is possible that a DPR/DPA
-
-
-
-Fajardo, et al.              Standards Track                   [Page 23]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   exchange completes while application messages are still in transit,
-   resulting in a loss of these messages.  An implementation could
-   mitigate this race condition, for example, using timers, and wait for
-   a short period of time for pending application level messages to
-   arrive before proceeding to disconnect the transport connection.
-   Eventually, lost messages are handled by the retransmission mechanism
-   described in Section 5.5.4.
-
-   A Diameter agent SHOULD use dedicated payload protocol identifiers
-   (PPIDs) for clear text and encrypted SCTP DATA chunks instead of only
-   using the unspecified payload protocol identifier (value 0).  For
-   this purpose, two PPID values are allocated: the PPID value 46 is for
-   Diameter messages in clear text SCTP DATA chunks, and the PPID value
-   47 is for Diameter messages in protected DTLS/SCTP DATA chunks.
-</pre>
-
-&nada;
-
-<pre>
-
-2.2.  Securing Diameter Messages
-
-   Connections between Diameter peers SHOULD be protected by TLS/TCP and
-   DTLS/SCTP.  All Diameter base protocol implementations MUST support
-   the use of TLS/TCP and DTLS/SCTP.  If desired, alternative security
-   mechanisms that are independent of Diameter, such as IPsec [RFC4301],
-   can be deployed to secure connections between peers.  The Diameter
-   protocol MUST NOT be used without one of TLS, DTLS, or IPsec.
-</pre>
-
-<p>
-As noted above, DTLS is not currently supported and IPsec usage is
-transparent to diameter.
-Security is not enforced by diameter.</p>
-
-<pre>
-
-2.3.  Diameter Application Compliance
-
-   Application Ids are advertised during the capabilities exchange phase
-   (see Section 5.3).  Advertising support of an application implies
-   that the sender supports the functionality specified in the
-   respective Diameter application specification.
-
-   Implementations MAY add arbitrary optional AVPs with the M-bit
-   cleared (including vendor-specific AVPs) to a command defined in an
-   application, but only if the command's CCF syntax specification
-   allows for it.  Please refer to Section 11.1.1 for details.
-</pre>
-
-&nada;
-
-<pre>
-
-2.4.  Application Identifiers
-
-   Each Diameter application MUST have an IANA-assigned Application ID.
-   The base protocol does not require an Application Id since its
-   support is mandatory.  During the capabilities exchange, Diameter
-   nodes inform their peers of locally supported applications.
-   Furthermore, all Diameter messages contain an Application Id, which
-   is used in the message forwarding process.
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 24]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   The following Application Id values are defined:
-
-         Diameter common message       0
-         Diameter base accounting      3
-         Relay                         0xffffffff
-</pre>
-
-<p>
-These applications are implemented in the dictionary modules
-<c>diameter_gen_base_rfc6733</c>, <c>diameter_gen_acct_rfc6733</c> and
-<c>diameter_relay</c> respectively.
-There are also RFC 3588 versions or the common and accounting
-dictionaries: <c>diameter_gen_base_rfc3588</c> and
-<c>diameter_base_accounting</c>.
-(The inconsistent naming is historical.)
-Dictionary modules are configured using the &mod_application_opt;
-<c>dictionary</c>.</p>
-
-<pre>
-   Relay and redirect agents MUST advertise the Relay Application ID,
-   while all other Diameter nodes MUST advertise locally supported
-   applications.  The receiver of a Capabilities Exchange message
-   advertising relay service MUST assume that the sender supports all
-   current and future applications.
-
-   Diameter relay and proxy agents are responsible for finding an
-   upstream server that supports the application of a particular
-   message.  If none can be found, an error message is returned with the
-   Result-Code AVP set to DIAMETER_UNABLE_TO_DELIVER.
-</pre>
-
-&nada;
-
-<pre>
-
-2.5.  Connections vs. Sessions
-
-   This section attempts to provide the reader with an understanding of
-   the difference between "connection" and "session", which are terms
-   used extensively throughout this document.
-
-   A connection refers to a transport-level connection between two peers
-   that is used to send and receive Diameter messages.  A session is a
-   logical concept at the application layer that exists between the
-   Diameter client and the Diameter server; it is identified via the
-   Session-Id AVP.
-
-             +--------+          +-------+          +--------+
-             | Client |          | Relay |          | Server |
-             +--------+          +-------+          +--------+
-                      &lt;---------->       &lt;---------->
-                   peer connection A   peer connection B
-
-                      &lt;----------------------------->
-                              User session x
-
-                Figure 1: Diameter Connections and Sessions
-
-   In the example provided in Figure 1, peer connection A is established
-   between the client and the relay.  Peer connection B is established
-   between the relay and the server.  User session X spans from the
-   client via the relay to the server.  Each "user" of a service causes
-   an auth request to be sent, with a unique session identifier.  Once
-   accepted by the server, both the client and the server are aware of
-   the session.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 25]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   It is important to note that there is no relationship between a
-   connection and a session, and that Diameter messages for multiple
-   sessions are all multiplexed through a single connection.  Also, note
-   that Diameter messages pertaining to the session, both application-
-   specific and those that are defined in this document such as ASR/ASA,
-   RAR/RAA, and STR/STA, MUST carry the Application Id of the
-   application.  Diameter messages pertaining to peer connection
-   establishment and maintenance such as CER/CEA, DWR/DWA, and DPR/DPA
-   MUST carry an Application Id of zero (0).
-</pre>
-
-<p>
-As noted above, diameter is not involved in session management.
-This is the responsibility of the diameter user.</p>
-
-<pre>
-
-2.6.  Peer Table
-
-   The Diameter peer table is used in message forwarding and is
-   referenced by the routing table.  A peer table entry contains the
-   following fields:
-
-   Host Identity
-
-      Following the conventions described for the DiameterIdentity-
-      derived AVP data format in Section 4.3.1, this field contains the
-      contents of the Origin-Host (Section 6.3) AVP found in the CER or
-      CEA message.
-
-   StatusT
-
-      This is the state of the peer entry, and it MUST match one of the
-      values listed in Section 5.6.
-
-   Static or Dynamic
-
-      Specifies whether a peer entry was statically configured or
-      dynamically discovered.
-
-   Expiration Time
-
-      Specifies the time at which dynamically discovered peer table
-      entries are to be either refreshed or expired.  If public key
-      certificates are used for Diameter security (e.g., with TLS), this
-      value MUST NOT be greater than the expiry times in the relevant
-      certificates.
-
-   TLS/TCP and DTLS/SCTP Enabled
-
-      Specifies whether TLS/TCP and DTLS/SCTP is to be used when
-      communicating with the peer.
-
-   Additional security information, when needed (e.g., keys,
-   certificates).
-</pre>
-
-<p>
-The Peer Table is not directly accessible to the diameter user.
-Information about connected peers can be retrieved using
-&mod_service_info;.</p>
-
-<pre>
-
-
-
-Fajardo, et al.              Standards Track                   [Page 26]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-2.7.  Routing Table
-
-   All Realm-Based routing lookups are performed against what is
-   commonly known as the routing table (see Section 12).  Each routing
-   table entry contains the following fields:
-
-   Realm Name
-
-      This is the field that MUST be used as a primary key in the
-      routing table lookups.  Note that some implementations perform
-      their lookups based on longest-match-from-the-right on the realm
-      rather than requiring an exact match.
-
-   Application Identifier
-
-      An application is identified by an Application Id.  A route entry
-      can have a different destination based on the Application Id in
-      the message header.  This field MUST be used as a secondary key
-      field in routing table lookups.
-
-   Local Action
-
-      The Local Action field is used to identify how a message should be
-      treated.  The following actions are supported:
-
-      1.  LOCAL - Diameter messages that can be satisfied locally and do
-          not need to be routed to another Diameter entity.
-
-      2.  RELAY - All Diameter messages that fall within this category
-          MUST be routed to a next-hop Diameter entity that is indicated
-          by the identifier described below.  Routing is done without
-          modifying any non-routing AVPs.  See Section 6.1.9 for
-          relaying guidelines.
-
-      3.  PROXY - All Diameter messages that fall within this category
-          MUST be routed to a next Diameter entity that is indicated by
-          the identifier described below.  The local server MAY apply
-          its local policies to the message by including new AVPs to the
-          message prior to routing.  See Section 6.1.9 for proxying
-          guidelines.
-
-      4.  REDIRECT - Diameter messages that fall within this category
-          MUST have the identity of the home Diameter server(s)
-          appended, and returned to the sender of the message.  See
-          Section 6.1.8 for redirection guidelines.
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 27]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Server Identifier
-
-      The identity of one or more servers to which the message is to be
-      routed.  This identity MUST also be present in the Host Identity
-      field of the peer table (Section 2.6).  When the Local Action is
-      set to RELAY or PROXY, this field contains the identity of the
-      server(s) to which the message MUST be routed.  When the Local
-      Action field is set to REDIRECT, this field contains the identity
-      of one or more servers to which the message MUST be redirected.
-
-   Static or Dynamic
-
-      Specifies whether a route entry was statically configured or
-      dynamically discovered.
-
-   Expiration Time
-
-      Specifies the time at which a dynamically discovered route table
-      entry expires.  If public key certificates are used for Diameter
-      security (e.g., with TLS), this value MUST NOT be greater than the
-      expiry time in the relevant certificates.
-
-   It is important to note that Diameter agents MUST support at least
-   one of the LOCAL, RELAY, PROXY, or REDIRECT modes of operation.
-   Agents do not need to support all modes of operation in order to
-   conform with the protocol specification, but they MUST follow the
-   protocol compliance guidelines in Section 2.  Relay agents and
-   proxies MUST NOT reorder AVPs.
-
-   The routing table MAY include a default entry that MUST be used for
-   any requests not matching any of the other entries.  The routing
-   table MAY consist of only such an entry.
-
-   When a request is routed, the target server MUST have advertised the
-   Application Id (see Section 2.4) for the given message or have
-   advertised itself as a relay or proxy agent.  Otherwise, an error is
-   returned with the Result-Code AVP set to DIAMETER_UNABLE_TO_DELIVER.
-</pre>
-
-<p>
-Routing does not need specific support in diameter: a user can
-maintain their own routing table if desired and implement any desired
-routing in &man_app; callbacks.
-However, it may be convenient to add more specific routing support to
-diameter in the future.</p>
-
-<pre>
-
-2.8.  Role of Diameter Agents
-
-   In addition to clients and servers, the Diameter protocol introduces
-   relay, proxy, redirect, and translation agents, each of which is
-   defined in Section 1.2.  Diameter agents are useful for several
-   reasons:
-</pre>
-
-<p>
-An noted above, the role a node plays is largely a question of
-configuration and &man_app; callback implementation.</p>
-
-<pre>
-
-   o  They can distribute administration of systems to a configurable
-      grouping, including the maintenance of security associations.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 28]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   o  They can be used for concentration of requests from a number of
-      co-located or distributed NAS equipment sets to a set of like user
-      groups.
-
-   o  They can do value-added processing to the requests or responses.
-
-   o  They can be used for load balancing.
-
-   o  A complex network will have multiple authentication sources, they
-      can sort requests and forward towards the correct target.
-
-   The Diameter protocol requires that agents maintain transaction
-   state, which is used for failover purposes.  Transaction state
-   implies that upon forwarding a request, its Hop-by-Hop Identifier is
-   saved; the field is replaced with a locally unique identifier, which
-   is restored to its original value when the corresponding answer is
-   received.  The request's state is released upon receipt of the
-   answer.  A stateless agent is one that only maintains transaction
-   state.
-
-   The Proxy-Info AVP allows stateless agents to add local state to a
-   Diameter request, with the guarantee that the same state will be
-   present in the answer.  However, the protocol's failover procedures
-   require that agents maintain a copy of pending requests.
-
-   A stateful agent is one that maintains session state information by
-   keeping track of all authorized active sessions.  Each authorized
-   session is bound to a particular service, and its state is considered
-   active until either the agent is notified otherwise or the session
-   expires.  Each authorized session has an expiration, which is
-   communicated by Diameter servers via the Session-Timeout AVP.
-
-   Maintaining session state may be useful in certain applications, such
-   as:
-
-   o  Protocol translation (e.g., RADIUS &lt;-> Diameter)
-
-   o  Limiting resources authorized to a particular user
-
-   o  Per-user or per-transaction auditing
-
-   A Diameter agent MAY act in a stateful manner for some requests and
-   be stateless for others.  A Diameter implementation MAY act as one
-   type of agent for some requests and as another type of agent for
-   others.
-</pre>
-
-&nada;
-
-<pre>
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 29]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-2.8.1.  Relay Agents
-
-   Relay agents are Diameter agents that accept requests and route
-   messages to other Diameter nodes based on information found in the
-   messages (e.g., the value of the Destination-Realm AVP Section 6.6).
-   This routing decision is performed using a list of supported realms
-   and known peers.  This is known as the routing table, as is defined
-   further in Section 2.7.
-
-   Relays may, for example, be used to aggregate requests from multiple
-   Network Access Servers (NASes) within a common geographical area
-   (Point of Presence, POP).  The use of relays is advantageous since it
-   eliminates the need for NASes to be configured with the necessary
-   security information they would otherwise require to communicate with
-   Diameter servers in other realms.  Likewise, this reduces the
-   configuration load on Diameter servers that would otherwise be
-   necessary when NASes are added, changed, or deleted.
-
-   Relays modify Diameter messages by inserting and removing routing
-   information, but they do not modify any other portion of a message.
-   Relays SHOULD NOT maintain session state but MUST maintain
-   transaction state.
-
-       +------+    --------->     +------+     --------->    +------+
-       |      |    1. Request     |      |     2. Request    |      |
-       | NAS  |                   | DRL  |                   | HMS  |
-       |      |    4. Answer      |      |     3. Answer     |      |
-       +------+    &lt;---------     +------+     &lt;---------    +------+
-    example.net                example.net                example.com
-
-                  Figure 2: Relaying of Diameter messages
-
-   The example provided in Figure 2 depicts a request issued from a NAS,
-   which is an access device, for the user [email protected].  Prior to
-   issuing the request, the NAS performs a Diameter route lookup, using
-   "example.com" as the key, and determines that the message is to be
-   relayed to a DRL, which is a Diameter relay.  The DRL performs the
-   same route lookup as the NAS, and relays the message to the HMS,
-   which is example.com's home server.  The HMS identifies that the
-   request can be locally supported (via the realm), processes the
-   authentication and/or authorization request, and replies with an
-   answer, which is routed back to the NAS using saved transaction
-   state.
-
-   Since relays do not perform any application-level processing, they
-   provide relaying services for all Diameter applications; therefore,
-   they MUST advertise the Relay Application Id.
-</pre>
-
-<p>
-Requests are relayed by returning a <c>relay</c> tuple from a
-&app_handle_request; callback.</p>
-
-<pre>
-
-
-
-Fajardo, et al.              Standards Track                   [Page 30]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-2.8.2.  Proxy Agents
-
-   Similar to relays, proxy agents route Diameter messages using the
-   Diameter routing table.  However, they differ since they modify
-   messages to implement policy enforcement.  This requires that proxies
-   maintain the state of their downstream peers (e.g., access devices)
-   to enforce resource usage, provide admission control, and provide
-   provisioning.
-
-   Proxies may, for example, be used in call control centers or access
-   ISPs that provide outsourced connections; they can monitor the number
-   and type of ports in use and make allocation and admission decisions
-   according to their configuration.
-
-   Since enforcing policies requires an understanding of the service
-   being provided, proxies MUST only advertise the Diameter applications
-   they support.
-</pre>
-
-&nada;
-
-<pre>
-
-2.8.3.  Redirect Agents
-
-   Redirect agents are useful in scenarios where the Diameter routing
-   configuration needs to be centralized.  An example is a redirect
-   agent that provides services to all members of a consortium, but does
-   not wish to be burdened with relaying all messages between realms.
-   This scenario is advantageous since it does not require that the
-   consortium provide routing updates to its members when changes are
-   made to a member's infrastructure.
-
-   Since redirect agents do not relay messages, and only return an
-   answer with the information necessary for Diameter agents to
-   communicate directly, they do not modify messages.  Since redirect
-   agents do not receive answer messages, they cannot maintain session
-   state.
-
-   The example provided in Figure 3 depicts a request issued from the
-   access device, NAS, for the user [email protected].  The message is
-   forwarded by the NAS to its relay, DRL, which does not have a routing
-   entry in its Diameter routing table for example.com.  The DRL has a
-   default route configured to DRD, which is a redirect agent that
-   returns a redirect notification to DRL, as well as the HMS' contact
-   information.  Upon receipt of the redirect notification, the DRL
-   establishes a transport connection with the HMS, if one doesn't
-   already exist, and forwards the request to it.
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 31]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-                                  +------+
-                                  |      |
-                                  | DRD  |
-                                  |      |
-                                  +------+
-                                   ^    |
-                       2. Request  |    | 3. Redirection
-                                   |    |    Notification
-                                   |    v
-       +------+    --------->     +------+     --------->    +------+
-       |      |    1. Request     |      |     4. Request    |      |
-       | NAS  |                   | DRL  |                   | HMS  |
-       |      |    6. Answer      |      |     5. Answer     |      |
-       +------+    &lt;---------     +------+     &lt;---------    +------+
-      example.net                example.net               example.com
-
-                 Figure 3: Redirecting a Diameter Message
-
-   Since redirect agents do not perform any application-level
-   processing, they provide relaying services for all Diameter
-   applications; therefore, they MUST advertise the Relay Application
-   ID.
-</pre>
-
-&nada;
-
-<pre>
-
-2.8.4.  Translation Agents
-
-   A translation agent is a device that provides translation between two
-   protocols (e.g., RADIUS&lt;->Diameter, TACACS+&lt;->Diameter).  Translation
-   agents are likely to be used as aggregation servers to communicate
-   with a Diameter infrastructure, while allowing for the embedded
-   systems to be migrated at a slower pace.
-
-   Given that the Diameter protocol introduces the concept of long-lived
-   authorized sessions, translation agents MUST be session stateful and
-   MUST maintain transaction state.
-
-   Translation of messages can only occur if the agent recognizes the
-   application of a particular request; therefore, translation agents
-   MUST only advertise their locally supported applications.
-
-       +------+    --------->     +------+     --------->    +------+
-       |      |  RADIUS Request   |      |  Diameter Request |      |
-       | NAS  |                   | TLA  |                   | HMS  |
-       |      |  RADIUS Answer    |      |  Diameter Answer  |      |
-       +------+    &lt;---------     +------+     &lt;---------    +------+
-      example.net                example.net               example.com
-
-                Figure 4: Translation of RADIUS to Diameter
-</pre>
-
-&nada;
-
-<pre>
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 32]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-2.9.  Diameter Path Authorization
-
-   As noted in Section 2.2, Diameter provides transmission-level
-   security for each connection using TLS/TCP and DTLS/SCTP.  Therefore,
-   each connection can be authenticated and can be replay and integrity
-   protected.
-
-   In addition to authenticating each connection, the entire session
-   MUST also be authorized.  Before initiating a connection, a Diameter
-   peer MUST check that its peers are authorized to act in their roles.
-   For example, a Diameter peer may be authentic, but that does not mean
-   that it is authorized to act as a Diameter server advertising a set
-   of Diameter applications.
-
-   Prior to bringing up a connection, authorization checks are performed
-   at each connection along the path.  Diameter capabilities negotiation
-   (CER/CEA) also MUST be carried out, in order to determine what
-   Diameter applications are supported by each peer.  Diameter sessions
-   MUST be routed only through authorized nodes that have advertised
-   support for the Diameter application required by the session.
-
-   As noted in Section 6.1.9, a relay or proxy agent MUST append a
-   Route-Record AVP to all requests forwarded.  The AVP contains the
-   identity of the peer from which the request was received.
-
-   The home Diameter server, prior to authorizing a session, MUST check
-   the Route-Record AVPs to make sure that the route traversed by the
-   request is acceptable.  For example, administrators within the home
-   realm may not wish to honor requests that have been routed through an
-   untrusted realm.  By authorizing a request, the home Diameter server
-   is implicitly indicating its willingness to engage in the business
-   transaction as specified by any contractual relationship between the
-   server and the previous hop.  A DIAMETER_AUTHORIZATION_REJECTED error
-   message (see Section 7.1.5) is sent if the route traversed by the
-   request is unacceptable.
-
-   A home realm may also wish to check that each accounting request
-   message corresponds to a Diameter response authorizing the session.
-   Accounting requests without corresponding authorization responses
-   SHOULD be subjected to further scrutiny, as should accounting
-   requests indicating a difference between the requested and provided
-   service.
-
-   Forwarding of an authorization response is considered evidence of a
-   willingness to take on financial risk relative to the session.  A
-   local realm may wish to limit this exposure, for example, by
-   establishing credit limits for intermediate realms and refusing to
-   accept responses that would violate those limits.  By issuing an
-
-
-
-Fajardo, et al.              Standards Track                   [Page 33]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   accounting request corresponding to the authorization response, the
-   local realm implicitly indicates its agreement to provide the service
-   indicated in the authorization response.  If the service cannot be
-   provided by the local realm, then a DIAMETER_UNABLE_TO_COMPLY error
-   message MUST be sent within the accounting request; a Diameter client
-   receiving an authorization response for a service that it cannot
-   perform MUST NOT substitute an alternate service and then send
-   accounting requests for the alternate service instead.
-</pre>
-
-&nada;
-
-<pre>
-
-3.  Diameter Header
-
-   A summary of the Diameter header format is shown below.  The fields
-   are transmitted in network byte order.
-
-       0                   1                   2                   3
-       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-      |    Version    |                 Message Length                |
-      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-      | Command Flags |                  Command Code                 |
-      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-      |                         Application-ID                        |
-      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-      |                      Hop-by-Hop Identifier                    |
-      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-      |                      End-to-End Identifier                    |
-      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-      |  AVPs ...
-      +-+-+-+-+-+-+-+-+-+-+-+-+-
-</pre>
-
-<p>
-The Diameter Header is represented by the <c>diameter_header</c>
-record defined in <c>diameter.hrl</c>.
-The <c>diameter_packet</c> record contains a <c>header</c> field whose
-value will be a decoded <c>#diameter_header{}</c> for incoming
-messages passed to &app_handle_request; and &app_handle_answer;
-callbacks.
-In the case of outgoing messages, diameter and the relevant
-dictionary populate the Diameter Header appropriately, although
-&app_prepare_request; and &app_handle_request; callbacks can modify
-header values.
-(Which can be useful in test.)</p>
-
-<pre>
-
-   Version
-
-      This Version field MUST be set to 1 to indicate Diameter Version
-      1.
-
-    Message Length
-
-      The Message Length field is three octets and indicates the length
-      of the Diameter message including the header fields and the padded
-      AVPs.  Thus, the Message Length field is always a multiple of 4.
-
-   Command Flags
-
-      The Command Flags field is eight bits.  The following bits are
-      assigned:
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 34]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-          0 1 2 3 4 5 6 7
-         +-+-+-+-+-+-+-+-+
-         |R P E T r r r r|
-         +-+-+-+-+-+-+-+-+
-
-      R(equest)
-
-         If set, the message is a request.  If cleared, the message is
-         an answer.
-
-      P(roxiable)
-
-         If set, the message MAY be proxied, relayed, or redirected.  If
-         cleared, the message MUST be locally processed.
-
-      E(rror)
-
-         If set, the message contains a protocol error, and the message
-         will not conform to the CCF described for this command.
-         Messages with the 'E' bit set are commonly referred to as error
-         messages.  This bit MUST NOT be set in request messages (see
-         Section 7.2).
-
-      T(Potentially retransmitted message)
-
-         This flag is set after a link failover procedure, to aid the
-         removal of duplicate requests.  It is set when resending
-         requests not yet acknowledged, as an indication of a possible
-         duplicate due to a link failure.  This bit MUST be cleared when
-         sending a request for the first time; otherwise, the sender
-         MUST set this flag.  Diameter agents only need to be concerned
-         about the number of requests they send based on a single
-         received request; retransmissions by other entities need not be
-         tracked.  Diameter agents that receive a request with the T
-         flag set, MUST keep the T flag set in the forwarded request.
-         This flag MUST NOT be set if an error answer message (e.g., a
-         protocol error) has been received for the earlier message.  It
-         can be set only in cases where no answer has been received from
-         the server for a request, and the request has been sent again.
-         This flag MUST NOT be set in answer messages.
-
-      r(eserved)
-
-         These flag bits are reserved for future use; they MUST be set
-         to zero and ignored by the receiver.
-</pre>
-
-<p>
-Reserved bits are set to 0 in outgoing messages.</p>
-
-<pre>
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 35]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Command Code
-
-      The Command Code field is three octets and is used in order to
-      communicate the command associated with the message.  The 24-bit
-      address space is managed by IANA (see Section 3.1).  Command Code
-      values 16,777,214 and 16,777,215 (hexadecimal values FFFFFE-
-      FFFFFF) are reserved for experimental use (see Section 11.2).
-
-   Application-ID
-
-      Application-ID is four octets and is used to identify for which
-      application the message is applicable.  The application can be an
-      authentication application, an accounting application, or a
-      vendor-specific application.
-
-      The value of the Application-ID field in the header MUST be the
-      same as any relevant Application-Id AVPs contained in the message.
-
-   Hop-by-Hop Identifier
-
-      The Hop-by-Hop Identifier is an unsigned 32-bit integer field (in
-      network byte order) that aids in matching requests and replies.
-      The sender MUST ensure that the Hop-by-Hop Identifier in a request
-      is unique on a given connection at any given time, and it MAY
-      attempt to ensure that the number is unique across reboots.  The
-      sender of an answer message MUST ensure that the Hop-by-Hop
-      Identifier field contains the same value that was found in the
-      corresponding request.  The Hop-by-Hop Identifier is normally a
-      monotonically increasing number, whose start value was randomly
-      generated.  An answer message that is received with an unknown
-      Hop-by-Hop Identifier MUST be discarded.
-
-   End-to-End Identifier
-
-      The End-to-End Identifier is an unsigned 32-bit integer field (in
-      network byte order) that is used to detect duplicate messages.
-      Upon reboot, implementations MAY set the high order 12 bits to
-      contain the low order 12 bits of current time, and the low order
-      20 bits to a random value.  Senders of request messages MUST
-      insert a unique identifier on each message.  The identifier MUST
-      remain locally unique for a period of at least 4 minutes, even
-      across reboots.  The originator of an answer message MUST ensure
-      that the End-to-End Identifier field contains the same value that
-      was found in the corresponding request.  The End-to-End Identifier
-      MUST NOT be modified by Diameter agents of any kind.  The
-      combination of the Origin-Host AVP (Section 6.3) and this field is
-      used to detect duplicates.  Duplicate requests SHOULD cause the
-      same answer to be transmitted (modulo the Hop-by-Hop Identifier
-
-
-
-Fajardo, et al.              Standards Track                   [Page 36]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      field and any routing AVPs that may be present), and they MUST NOT
-      affect any state that was set when the original request was
-      processed.  Duplicate answer messages that are to be locally
-      consumed (see Section 6.2) SHOULD be silently discarded.
-
-   AVPs
-
-      AVPs are a method of encapsulating information relevant to the
-      Diameter message.  See Section 4 for more information on AVPs.
-</pre>
-
-&nada;
-
-<pre>
-
-3.1.  Command Codes
-
-   Each command Request/Answer pair is assigned a Command Code, and the
-   sub-type (i.e., request or answer) is identified via the 'R' bit in
-   the Command Flags field of the Diameter header.
-
-   Every Diameter message MUST contain a Command Code in its header's
-   Command Code field, which is used to determine the action that is to
-   be taken for a particular message.  The following Command Codes are
-   defined in the Diameter base protocol:
-
-                                                   Section
-    Command Name             Abbrev.    Code       Reference
-      --------------------------------------------------------
-      Abort-Session-Request     ASR       274           8.5.1
-      Abort-Session-Answer      ASA       274           8.5.2
-      Accounting-Request        ACR       271           9.7.1
-      Accounting-Answer         ACA       271           9.7.2
-      Capabilities-Exchange-    CER       257           5.3.1
-         Request
-      Capabilities-Exchange-    CEA       257           5.3.2
-         Answer
-      Device-Watchdog-Request   DWR       280           5.5.1
-      Device-Watchdog-Answer    DWA       280           5.5.2
-      Disconnect-Peer-Request   DPR       282           5.4.1
-      Disconnect-Peer-Answer    DPA       282           5.4.2
-      Re-Auth-Request           RAR       258           8.3.1
-      Re-Auth-Answer            RAA       258           8.3.2
-      Session-Termination-      STR       275           8.4.1
-         Request
-      Session-Termination-      STA       275           8.4.2
-         Answer
-</pre>
-
-<p>
-These messages are all defined in diameter's implementation of the
-common dictionary in modules <c>diameter_gen_base_rfc6733</c> and
-<c>diameter_gen_base_rfc3588</c>.
-Corresponding record definitions are found in
-<c>diameter_gen_base_rfc6733.hrl</c> and
-<c>diameter_gen_base_rfc3588.hrl</c>.</p>
-
-<pre>
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 37]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-3.2.  Command Code Format Specification
-
-   Every Command Code defined MUST include a corresponding Command Code
-   Format (CCF) specification, which is used to define the AVPs that
-   MUST or MAY be present when sending the message.  The following ABNF
-   specifies the CCF used in the definition:
-</pre>
-
-<p>
-The CCF is what is specified in the <c>@messages</c> section of the
-&man_dict; format, except as noted below.</p>
-
-<pre>
-
-   command-def      = "&lt;" command-name ">" "::=" diameter-message
-</pre>
-
-<p>
-Angle brackets are currently not allowed here.
-This was a change between RFC 3588 and RFC 6733: the former disallowed
-them in the grammar but included them in its own command definitions.</p>
-
-<pre>
-
-   command-name     = diameter-name
-
-   diameter-name    = ALPHA *(ALPHA / DIGIT / "-")
-
-   diameter-message = header   *fixed  *required *optional
-
-   header           = "&lt;Diameter-Header:" command-id
-                         [r-bit] [p-bit] [e-bit] [application-id]">"
-
-   application-id   = 1*DIGIT
-
-   command-id       = 1*DIGIT
-                      ; The Command Code assigned to the command.
-
-   r-bit            = ", REQ"
-                      ; If present, the 'R' bit in the Command
-                      ; Flags is set, indicating that the message
-                      ; is a request as opposed to an answer.
-
-   p-bit            = ", PXY"
-                      ; If present, the 'P' bit in the Command
-                      ; Flags is set, indicating that the message
-                      ; is proxiable.
-
-   e-bit            = ", ERR"
-                      ; If present, the 'E' bit in the Command
-                      ; Flags is set, indicating that the answer
-                      ; message contains a Result-Code AVP in
-                      ; the "protocol error" class.
-
-   fixed            = [qual] "&lt;" avp-spec ">"
-                      ; Defines the fixed position of an AVP.
-
-   required         = [qual] "{" avp-spec "}"
-                      ; The AVP MUST be present and can appear
-                      ; anywhere in the message.
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 38]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   optional         = [qual] "[" avp-name "]"
-                      ; The avp-name in the 'optional' rule cannot
-                      ; evaluate to any AVP Name that is included
-                      ; in a fixed or required rule.  The AVP can
-                      ; appear anywhere in the message.
-                      ;
-                      ; NOTE:  "[" and "]" have a slightly different
-                      ; meaning than in ABNF.  These braces
-                      ; cannot be used to express optional fixed rules
-                      ; (such as an optional ICV at the end).  To do
-                      ; this, the convention is '0*1fixed'.
-
-   qual             = [min] "*" [max]
-                      ; See ABNF conventions, RFC 5234, Section 4.
-                      ; The absence of any qualifier depends on
-                      ; whether it precedes a fixed, required, or
-                      ; optional rule.  If a fixed or required rule has
-                      ; no qualifier, then exactly one such AVP MUST
-                      ; be present.  If an optional rule has no
-                      ; qualifier, then 0 or 1 such AVP may be
-                      ; present.  If an optional rule has a qualifier,
-                      ; then the value of min MUST be 0 if present.
-
-   min              = 1*DIGIT
-                      ; The minimum number of times the element may
-                      ; be present.  If absent, the default value is 0
-                      ; for fixed and optional rules and 1 for
-                      ; required rules.  The value MUST be at least 1
-                      ; for required rules.
-
-   max              = 1*DIGIT
-                      ; The maximum number of times the element may
-                      ; be present.  If absent, the default value is
-                      ; infinity.  A value of 0 implies the AVP MUST
-                      ; NOT be present.
-
-   avp-spec         = diameter-name
-                      ; The avp-spec has to be an AVP Name, defined
-                      ; in the base or extended Diameter
-                      ; specifications.
-
-   avp-name         = avp-spec / "AVP"
-                      ; The string "AVP" stands for *any* arbitrary AVP
-                      ; Name, not otherwise listed in that Command Code
-                      ; definition.  The inclusion of this string
-                      ; is recommended for all CCFs to allow for
-                      ; extensibility.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 39]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   The following is a definition of a fictitious Command Code:
-
-   Example-Request ::= &lt; Diameter Header: 9999999, REQ, PXY >
-                       { User-Name }
-                    1* { Origin-Host }
-                     * [ AVP ]
-</pre>
-
-&nada;
-
-<pre>
-
-3.3.  Diameter Command Naming Conventions
-
-   Diameter command names typically includes one or more English words
-   followed by the verb "Request" or "Answer".  Each English word is
-   delimited by a hyphen.  A three-letter acronym for both the request
-   and answer is also normally provided.
-
-   An example is a message set used to terminate a session.  The command
-   name is Session-Terminate-Request and Session-Terminate-Answer, while
-   the acronyms are STR and STA, respectively.
-
-   Both the request and the answer for a given command share the same
-   Command Code.  The request is identified by the R(equest) bit in the
-   Diameter header set to one (1), to ask that a particular action be
-   performed, such as authorizing a user or terminating a session.  Once
-   the receiver has completed the request, it issues the corresponding
-   answer, which includes a result code that communicates one of the
-   following:
-
-   o  The request was successful
-
-   o  The request failed
-
-   o  An additional request has to be sent to provide information the
-      peer requires prior to returning a successful or failed answer.
-
-   o  The receiver could not process the request, but provides
-      information about a Diameter peer that is able to satisfy the
-      request, known as redirect.
-
-   Additional information, encoded within AVPs, may also be included in
-   answer messages.
-</pre>
-
-<p>
-The &man_dict; format places no requirement on the naming of commands.</p>
-
-<pre>
-
-4.  Diameter AVPs
-
-   Diameter AVPs carry specific authentication, accounting,
-   authorization, and routing information as well as configuration
-   details for the request and reply.
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 40]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Each AVP of type OctetString MUST be padded to align on a 32-bit
-   boundary, while other AVP types align naturally.  A number of zero-
-   valued bytes are added to the end of the AVP Data field until a word
-   boundary is reached.  The length of the padding is not reflected in
-   the AVP Length field.
-
-4.1.  AVP Header
-
-   The fields in the AVP header MUST be sent in network byte order.  The
-   format of the header is:
-
-       0                   1                   2                   3
-       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
-      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-      |                           AVP Code                            |
-      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-      |V M P r r r r r|                  AVP Length                   |
-      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-      |                        Vendor-ID (opt)                        |
-      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-      |    Data ...
-      +-+-+-+-+-+-+-+-+
-
-   AVP Code
-
-      The AVP Code, combined with the Vendor-Id field, identifies the
-      attribute uniquely.  AVP numbers 1 through 255 are reserved for
-      reuse of RADIUS attributes, without setting the Vendor-Id field.
-      AVP numbers 256 and above are used for Diameter, which are
-      allocated by IANA (see Section 11.1.1).
-
-   AVP Flags
-
-      The AVP Flags field informs the receiver how each attribute must
-      be handled.  New Diameter applications SHOULD NOT define
-      additional AVP Flag bits.  However, note that new Diameter
-      applications MAY define additional bits within the AVP header, and
-      an unrecognized bit SHOULD be considered an error.  The sender of
-      the AVP MUST set 'R' (reserved) bits to 0 and the receiver SHOULD
-      ignore all 'R' (reserved) bits.  The 'P' bit has been reserved for
-      future usage of end-to-end security.  At the time of writing,
-      there are no end-to-end security mechanisms specified; therefore,
-      the 'P' bit SHOULD be set to 0.
-
-      The 'M' bit, known as the Mandatory bit, indicates whether the
-      receiver of the AVP MUST parse and understand the semantics of the
-      AVP including its content.  The receiving entity MUST return an
-      appropriate error message if it receives an AVP that has the M-bit
-
-
-
-Fajardo, et al.              Standards Track                   [Page 41]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      set but does not understand it.  An exception applies when the AVP
-      is embedded within a Grouped AVP.  See Section 4.4 for details.
-      Diameter relay and redirect agents MUST NOT reject messages with
-      unrecognized AVPs.
-
-      The 'M' bit MUST be set according to the rules defined in the
-      application specification that introduces or reuses this AVP.
-      Within a given application, the M-bit setting for an AVP is
-      defined either for all command types or for each command type.
-
-      AVPs with the 'M' bit cleared are informational only; a receiver
-      that receives a message with such an AVP that is not supported, or
-      whose value is not supported, MAY simply ignore the AVP.
-
-      The 'V' bit, known as the Vendor-Specific bit, indicates whether
-      the optional Vendor-ID field is present in the AVP header.  When
-      set, the AVP Code belongs to the specific vendor code address
-      space.
-
-   AVP Length
-
-      The AVP Length field is three octets, and indicates the number of
-      octets in this AVP including the AVP Code field, AVP Length field,
-      AVP Flags field, Vendor-ID field (if present), and the AVP Data
-      field.  If a message is received with an invalid attribute length,
-      the message MUST be rejected.
-
-4.1.1.  Optional Header Elements
-
-   The AVP header contains one optional field.  This field is only
-   present if the respective bit-flag is enabled.
-
-   Vendor-ID
-
-      The Vendor-ID field is present if the 'V' bit is set in the AVP
-      Flags field.  The optional four-octet Vendor-ID field contains the
-      IANA-assigned "SMI Network Management Private Enterprise Codes"
-      [ENTERPRISE] value, encoded in network byte order.  Any vendors or
-      standardization organizations that are also treated like vendors
-      in the IANA-managed "SMI Network Management Private Enterprise
-      Codes" space wishing to implement a vendor-specific Diameter AVP
-      MUST use their own Vendor-ID along with their privately managed
-      AVP address space, guaranteeing that they will not collide with
-      any other vendor's vendor-specific AVP(s) or with future IETF
-      AVPs.
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 42]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      A Vendor-ID value of zero (0) corresponds to the IETF-adopted AVP
-      values, as managed by IANA.  Since the absence of the Vendor-ID
-      field implies that the AVP in question is not vendor specific,
-      implementations MUST NOT use the value of zero (0) for the
-      Vendor-ID field.
-
-4.2.  Basic AVP Data Formats
-
-   The Data field is zero or more octets and contains information
-   specific to the Attribute.  The format and length of the Data field
-   is determined by the AVP Code and AVP Length fields.  The format of
-   the Data field MUST be one of the following base data types or a data
-   type derived from the base data types.  In the event that a new Basic
-   AVP Data Format is needed, a new version of this RFC MUST be created.
-
-   OctetString
-
-      The data contains arbitrary data of variable length.  Unless
-      otherwise noted, the AVP Length field MUST be set to at least 8
-      (12 if the 'V' bit is enabled).  AVP values of this type that are
-      not a multiple of 4 octets in length are followed by the necessary
-      padding so that the next AVP (if any) will start on a 32-bit
-      boundary.
-
-   Integer32
-
-      32-bit signed value, in network byte order.  The AVP Length field
-      MUST be set to 12 (16 if the 'V' bit is enabled).
-
-   Integer64
-
-      64-bit signed value, in network byte order.  The AVP Length field
-      MUST be set to 16 (20 if the 'V' bit is enabled).
-
-   Unsigned32
-
-      32-bit unsigned value, in network byte order.  The AVP Length
-      field MUST be set to 12 (16 if the 'V' bit is enabled).
-
-   Unsigned64
-
-      64-bit unsigned value, in network byte order.  The AVP Length
-      field MUST be set to 16 (20 if the 'V' bit is enabled).
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 43]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Float32
-
-      This represents floating point values of single precision as
-      described by [FLOATPOINT].  The 32-bit value is transmitted in
-      network byte order.  The AVP Length field MUST be set to 12 (16 if
-      the 'V' bit is enabled).
-
-   Float64
-
-      This represents floating point values of double precision as
-      described by [FLOATPOINT].  The 64-bit value is transmitted in
-      network byte order.  The AVP Length field MUST be set to 16 (20 if
-      the 'V' bit is enabled).
-
-   Grouped
-
-      The Data field is specified as a sequence of AVPs.  These AVPs are
-      concatenated -- including their headers and padding -- in the
-      order in which they are specified and the result encapsulated in
-      the Data field.  The AVP Length field is set to 8 (12 if the 'V'
-      bit is enabled) plus the total length of all included AVPs,
-      including their headers and padding.  Thus, the AVP Length field
-      of an AVP of type Grouped is always a multiple of 4.
-
-4.3.  Derived AVP Data Formats
-
-   In addition to using the Basic AVP Data Formats, applications may
-   define data formats derived from the Basic AVP Data Formats.  An
-   application that defines new Derived AVP Data Formats MUST include
-   them in a section titled "Derived AVP Data Formats", using the same
-   format as the definitions below.  Each new definition MUST be either
-   defined or listed with a reference to the RFC that defines the
-   format.
-
-4.3.1.  Common Derived AVP Data Formats
-
-   The following are commonly used Derived AVP Data Formats.
-
-   Address
-
-      The Address format is derived from the OctetString Basic AVP
-      Format.  It is a discriminated union representing, for example, a
-      32-bit (IPv4) [RFC0791] or 128-bit (IPv6) [RFC4291] address, most
-      significant octet first.  The first two octets of the Address AVP
-      represent the AddressType, which contains an Address Family,
-      defined in [IANAADFAM].  The AddressType is used to discriminate
-      the content and format of the remaining octets.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 44]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Time
-
-      The Time format is derived from the OctetString Basic AVP Format.
-      The string MUST contain four octets, in the same format as the
-      first four bytes are in the NTP timestamp format.  The NTP
-      timestamp format is defined in Section 3 of [RFC5905].
-
-      This represents the number of seconds since 0h on 1 January 1900
-      with respect to the Coordinated Universal Time (UTC).
-
-      On 6h 28m 16s UTC, 7 February 2036, the time value will overflow.
-      Simple Network Time Protocol (SNTP) [RFC5905] describes a
-      procedure to extend the time to 2104.  This procedure MUST be
-      supported by all Diameter nodes.
-
-   UTF8String
-
-      The UTF8String format is derived from the OctetString Basic AVP
-      Format.  This is a human-readable string represented using the
-      ISO/IEC IS 10646-1 character set, encoded as an OctetString using
-      the UTF-8 transformation format [RFC3629].
-
-      Since additional code points are added by amendments to the 10646
-      standard from time to time, implementations MUST be prepared to
-      encounter any code point from 0x00000001 to 0x7fffffff.  Byte
-      sequences that do not correspond to the valid encoding of a code
-      point into UTF-8 charset or are outside this range are prohibited.
-
-      The use of control codes SHOULD be avoided.  When it is necessary
-      to represent a new line, the control code sequence CR LF SHOULD be
-      used.
-
-      The use of leading or trailing white space SHOULD be avoided.
-
-      For code points not directly supported by user interface hardware
-      or software, an alternative means of entry and display, such as
-      hexadecimal, MAY be provided.
-
-      For information encoded in 7-bit US-ASCII, the UTF-8 charset is
-      identical to the US-ASCII charset.
-
-      UTF-8 may require multiple bytes to represent a single character /
-      code point; thus, the length of a UTF8String in octets may be
-      different from the number of characters encoded.
-
-      Note that the AVP Length field of an UTF8String is measured in
-      octets not characters.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 45]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   DiameterIdentity
-
-      The DiameterIdentity format is derived from the OctetString Basic
-      AVP Format.
-
-                        DiameterIdentity  = FQDN/Realm
-
-   The DiameterIdentity value is used to uniquely identify either:
-
-      *  A Diameter node for purposes of duplicate connection and
-         routing loop detection.
-
-      *  A Realm to determine whether messages can be satisfied locally
-         or whether they must be routed or redirected.
-
-      When a DiameterIdentity value is used to identify a Diameter node,
-      the contents of the string MUST be the Fully Qualified Domain Name
-      (FQDN) of the Diameter node.  If multiple Diameter nodes run on
-      the same host, each Diameter node MUST be assigned a unique
-      DiameterIdentity.  If a Diameter node can be identified by several
-      FQDNs, a single FQDN should be picked at startup and used as the
-      only DiameterIdentity for that node, whatever the connection on
-      which it is sent.  In this document, note that DiameterIdentity is
-      in ASCII form in order to be compatible with existing DNS
-      infrastructure.  See Appendix D for interactions between the
-      Diameter protocol and Internationalized Domain Names (IDNs).
-
-   DiameterURI
-
-      The DiameterURI MUST follow the Uniform Resource Identifiers (RFC
-      3986) syntax [RFC3986] rules specified below:
-
-      "aaa://" FQDN [ port ] [ transport ] [ protocol ]
-
-                      ; No transport security
-
-      "aaas://" FQDN [ port ] [ transport ] [ protocol ]
-
-                      ; Transport security used
-
-      FQDN               = &lt; Fully Qualified Domain Name >
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 46]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      port               = ":" 1*DIGIT
-
-                      ; One of the ports used to listen for
-                      ; incoming connections.
-                      ; If absent, the default Diameter port
-                      ; (3868) is assumed if no transport
-                      ; security is used and port 5658 when
-                      ; transport security (TLS/TCP and DTLS/SCTP)
-                      ; is used.
-
-      transport          = ";transport=" transport-protocol
-
-                      ; One of the transports used to listen
-                      ; for incoming connections.  If absent,
-                      ; the default protocol is assumed to be TCP.
-                      ; UDP MUST NOT be used when the aaa-protocol
-                      ; field is set to diameter.
-
-      transport-protocol = ( "tcp" / "sctp" / "udp" )
-
-      protocol           = ";protocol=" aaa-protocol
-
-                      ; If absent, the default AAA protocol
-                      ; is Diameter.
-
-      aaa-protocol       = ( "diameter" / "radius" / "tacacs+" )
-
-      The following are examples of valid Diameter host identities:
-
-      aaa://host.example.com;transport=tcp
-      aaa://host.example.com:6666;transport=tcp
-      aaa://host.example.com;protocol=diameter
-      aaa://host.example.com:6666;protocol=diameter
-      aaa://host.example.com:6666;transport=tcp;protocol=diameter
-      aaa://host.example.com:1813;transport=udp;protocol=radius
-
-   Enumerated
-
-      The Enumerated format is derived from the Integer32 Basic AVP
-      Format.  The definition contains a list of valid values and their
-      interpretation and is described in the Diameter application
-      introducing the AVP.
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 47]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   IPFilterRule
-
-      The IPFilterRule format is derived from the OctetString Basic AVP
-      Format and uses the ASCII charset.  The rule syntax is a modified
-      subset of ipfw(8) from FreeBSD.  Packets may be filtered based on
-      the following information that is associated with it:
-
-            Direction                          (in or out)
-            Source and destination IP address  (possibly masked)
-            Protocol
-            Source and destination port        (lists or ranges)
-            TCP flags
-            IP fragment flag
-            IP options
-            ICMP types
-
-   Rules for the appropriate direction are evaluated in order, with the
-   first matched rule terminating the evaluation.  Each packet is
-   evaluated once.  If no rule matches, the packet is dropped if the
-   last rule evaluated was a permit, and passed if the last rule was a
-   deny.
-
-   IPFilterRule filters MUST follow the format:
-
-         action dir proto from src to dst [options]
-
-         action       permit - Allow packets that match the rule.
-                      deny   - Drop packets that match the rule.
-
-         dir          "in" is from the terminal, "out" is to the
-                      terminal.
-
-         proto        An IP protocol specified by number.  The "ip"
-                      keyword means any protocol will match.
-
-         src and dst  &lt;address/mask> [ports]
-
-                      The &lt;address/mask> may be specified as:
-                      ipno       An IPv4 or IPv6 number in dotted-
-                                 quad or canonical IPv6 form.  Only
-                                 this exact IP number will match the
-                                 rule.
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 48]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-                      ipno/bits  An IP number as above with a mask
-                                 width of the form 192.0.2.10/24.  In
-                                 this case, all IP numbers from
-                                 192.0.2.0 to 192.0.2.255 will match.
-                                 The bit width MUST be valid for the
-                                 IP version, and the IP number MUST
-                                 NOT have bits set beyond the mask.
-                                 For a match to occur, the same IP
-                                 version must be present in the
-                                 packet that was used in describing
-                                 the IP address.  To test for a
-                                 particular IP version, the bits part
-                                 can be set to zero.  The keyword
-                                 "any" is 0.0.0.0/0 or the IPv6
-                                 equivalent.  The keyword "assigned"
-                                 is the address or set of addresses
-                                 assigned to the terminal.  For IPv4,
-                                 a typical first rule is often "deny
-                                 in ip! assigned".
-
-                      The sense of the match can be inverted by
-                      preceding an address with the not modifier (!),
-                      causing all other addresses to be matched
-                      instead.  This does not affect the selection of
-                      port numbers.
-
-                      With the TCP, UDP, and SCTP protocols, optional
-                      ports may be specified as:
-
-                         {port/port-port}[,ports[,...]]
-
-                       The '-' notation specifies a range of ports
-                      (including boundaries).
-
-                      Fragmented packets that have a non-zero offset
-                      (i.e., not the first fragment) will never match
-                      a rule that has one or more port
-                      specifications.  See the frag option for
-                      details on matching fragmented packets.
-
-         options:
-            frag    Match if the packet is a fragment and this is not
-                    the first fragment of the datagram.  frag may not
-                    be used in conjunction with either tcpflags or
-                    TCP/UDP port specifications.
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 49]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-            ipoptions spec
-                    Match if the IP header contains the comma-separated
-                    list of options specified in spec.  The
-                    supported IP options are:
-
-                    ssrr (strict source route), lsrr (loose source
-                    route), rr (record packet route), and ts
-                    (timestamp).  The absence of a particular option
-                    may be denoted with a '!'.
-
-            tcpoptions spec
-                    Match if the TCP header contains the comma-separated
-                    list of options specified in spec.  The
-                    supported TCP options are:
-
-                    mss (maximum segment size), window (tcp window
-                    advertisement), sack (selective ack), ts (rfc1323
-                    timestamp), and cc (rfc1644 t/tcp connection
-                    count).  The absence of a particular option may
-                    be denoted with a '!'.
-
-            established
-                    TCP packets only.  Match packets that have the RST
-                    or ACK bits set.
-
-            setup   TCP packets only.  Match packets that have the SYN
-                    bit set but no ACK bit.
-
-
-            tcpflags spec
-                    TCP packets only.  Match if the TCP header
-                    contains the comma-separated list of flags
-                    specified in spec.  The supported TCP flags are:
-
-                    fin, syn, rst, psh, ack, and urg.  The absence of a
-                    particular flag may be denoted with a '!'.  A rule
-                    that contains a tcpflags specification can never
-                    match a fragmented packet that has a non-zero
-                    offset.  See the frag option for details on
-                    matching fragmented packets.
-
-            icmptypes types
-                    ICMP packets only.  Match if the ICMP type is in
-                    the list types.  The list may be specified as any
-                    combination of ranges or individual types
-                    separated by commas.  Both the numeric values and
-                    the symbolic values listed below can be used.  The
-                    supported ICMP types are:
-
-
-
-Fajardo, et al.              Standards Track                   [Page 50]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-                    echo reply (0), destination unreachable (3),
-                    source quench (4), redirect (5), echo request
-                    (8), router advertisement (9), router
-                    solicitation (10), time-to-live exceeded (11), IP
-                    header bad (12), timestamp request (13),
-                    timestamp reply (14), information request (15),
-                    information reply (16), address mask request (17),
-                    and address mask reply (18).
-
-   There is one kind of packet that the access device MUST always
-   discard, that is an IP fragment with a fragment offset of one.  This
-   is a valid packet, but it only has one use, to try to circumvent
-   firewalls.
-
-   An access device that is unable to interpret or apply a deny rule
-   MUST terminate the session.  An access device that is unable to
-   interpret or apply a permit rule MAY apply a more restrictive rule.
-   An access device MAY apply deny rules of its own before the supplied
-   rules, for example to protect the access device owner's
-   infrastructure.
-
-4.4.   Grouped AVP Values
-
-   The Diameter protocol allows AVP values of type 'Grouped'.  This
-   implies that the Data field is actually a sequence of AVPs.  It is
-   possible to include an AVP with a Grouped type within a Grouped type,
-   that is, to nest them.  AVPs within an AVP of type Grouped have the
-   same padding requirements as non-Grouped AVPs, as defined in
-   Section 4.4.
-
-   The AVP Code numbering space of all AVPs included in a Grouped AVP is
-   the same as for non-Grouped AVPs.  Receivers of a Grouped AVP that
-   does not have the 'M' (mandatory) bit set and one or more of the
-   encapsulated AVPs within the group has the 'M' (mandatory) bit set
-   MAY simply be ignored if the Grouped AVP itself is unrecognized.  The
-   rule applies even if the encapsulated AVP with its 'M' (mandatory)
-   bit set is further encapsulated within other sub-groups, i.e., other
-   Grouped AVPs embedded within the Grouped AVP.
-
-   Every Grouped AVP definition MUST include a corresponding grammar,
-   using ABNF [RFC5234] (with modifications), as defined below.
-
-         grouped-avp-def  = "&lt;" name ">" "::=" avp
-
-         name-fmt         = ALPHA *(ALPHA / DIGIT / "-")
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 51]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-         name             = name-fmt
-                            ; The name has to be the name of an AVP,
-                            ; defined in the base or extended Diameter
-                            ; specifications.
-
-         avp              = header *fixed *required *optional
-
-         header           = "&lt;" "AVP-Header:" avpcode [vendor] ">"
-
-         avpcode          = 1*DIGIT
-                            ; The AVP Code assigned to the Grouped AVP.
-
-         vendor           = 1*DIGIT
-                            ; The Vendor-ID assigned to the Grouped AVP.
-                            ; If absent, the default value of zero is
-                            ; used.
-
-4.4.1.  Example AVP with a Grouped Data Type
-
-   The Example-AVP (AVP Code 999999) is of type Grouped and is used to
-   clarify how Grouped AVP values work.  The Grouped Data field has the
-   following CCF grammar:
-
-         Example-AVP  ::= &lt; AVP Header: 999999 >
-                          { Origin-Host }
-                        1*{ Session-Id }
-                         *[ AVP ]
-
-      An Example-AVP with Grouped Data follows.
-
-      The Origin-Host AVP (Section 6.3) is required.  In this case:
-
-         Origin-Host = "example.com".
-
-      One or more Session-Ids must follow.  Here there are two:
-
-         Session-Id =
-           "grump.example.com:33041;23432;893;0AF3B81"
-
-         Session-Id =
-           "grump.example.com:33054;23561;2358;0AF3B82"
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 52]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      optional AVPs included are
-
-         Recovery-Policy = &lt;binary>
-            2163bc1d0ad82371f6bc09484133c3f09ad74a0dd5346d54195a7cf0b35
-            2cabc881839a4fdcfbc1769e2677a4c1fb499284c5f70b48f58503a45c5
-            c2d6943f82d5930f2b7c1da640f476f0e9c9572a50db8ea6e51e1c2c7bd
-            f8bb43dc995144b8dbe297ac739493946803e1cee3e15d9b765008a1b2a
-            cf4ac777c80041d72c01e691cf751dbf86e85f509f3988e5875dc905119
-            26841f00f0e29a6d1ddc1a842289d440268681e052b30fb638045f7779c
-            1d873c784f054f688f5001559ecff64865ef975f3e60d2fd7966b8c7f92
-
-         Futuristic-Acct-Record = &lt;binary>
-            fe19da5802acd98b07a5b86cb4d5d03f0314ab9ef1ad0b67111ff3b90a0
-            57fe29620bf3585fd2dd9fcc38ce62f6cc208c6163c008f4258d1bc88b8
-            17694a74ccad3ec69269461b14b2e7a4c111fb239e33714da207983f58c
-            41d018d56fe938f3cbf089aac12a912a2f0d1923a9390e5f789cb2e5067
-            d3427475e49968f841
-
-   The data for the optional AVPs is represented in hexadecimal form
-   since the format of these AVPs is not known at the time of definition
-   of the Example-AVP group nor (likely) at the time when the example
-   instance of this AVP is interpreted -- except by Diameter
-   implementations that support the same set of AVPs.  The encoding
-   example illustrates how padding is used and how length fields are
-   calculated.  Also, note that AVPs may be present in the Grouped AVP
-   value that the receiver cannot interpret (here, the Recover-Policy
-   and Futuristic-Acct-Record AVPs).  The length of the Example-AVP is
-   the sum of all the length of the member AVPs, including their
-   padding, plus the Example-AVP header size.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 53]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   This AVP would be encoded as follows:
-
-         0       1       2       3       4       5       6       7
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   0  |     Example AVP Header (AVP Code = 999999), Length = 496      |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   8  |     Origin-Host AVP Header (AVP Code = 264), Length = 19      |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   16 |  'e'  |  'x'  |  'a'  |  'm'  |  'p'  |  'l'  |  'e'  |  '.'  |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   24 |  'c'  |  'o'  |  'm'  |Padding|     Session-Id AVP Header     |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   32 | (AVP Code = 263), Length = 49 |  'g'  |  'r'  |  'u'  |  'm'  |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-                                    . . .
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   72 |  'F'  |  '3'  |  'B'  |  '8'  |  '1'  |Padding|Padding|Padding|
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   80 |     Session-Id AVP Header (AVP Code = 263), Length = 50       |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   88 |  'g'  |  'r'  |  'u'  |  'm'  |  'p'  |  '.'  |  'e'  |  'x'  |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-                                   . . .
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   120|  '5'  |  '8'  |  ';'  |  '0'  |  'A'  |  'F'  |  '3'  |  'B'  |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   128|  '8'  |  '2'  |Padding|Padding|  Recovery-Policy Header (AVP  |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   136|  Code = 8341), Length = 223   | 0x21  | 0x63  | 0xbc  | 0x1d  |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   144|  0x0a | 0xd8  | 0x23  | 0x71  | 0xf6  | 0xbc  | 0x09  | 0x48  |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-                                    . . .
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   352|  0x8c | 0x7f  | 0x92  |Padding| Futuristic-Acct-Record Header |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   328|(AVP Code = 15930),Length = 137| 0xfe  | 0x19  | 0xda  | 0x58  |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   336|  0x02 | 0xac  | 0xd9  | 0x8b  | 0x07  | 0xa5  | 0xb8  | 0xc6  |
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-                                    . . .
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-   488|  0xe4 | 0x99  | 0x68  | 0xf8  | 0x41  |Padding|Padding|Padding|
-      +-------+-------+-------+-------+-------+-------+-------+-------+
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 54]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-4.5.  Diameter Base Protocol AVPs
-
-   The following table describes the Diameter AVPs defined in the base
-   protocol, their AVP Code values, types, and possible flag values.
-
-   Due to space constraints, the short form DiamIdent is used to
-   represent DiameterIdentity.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 55]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-                                            +----------+
-                                            | AVP Flag |
-                                            |  rules   |
-                                            |----+-----|
-                   AVP  Section             |    |MUST |
-   Attribute Name  Code Defined  Data Type  |MUST| NOT |
-   -----------------------------------------|----+-----|
-   Acct-             85  9.8.2   Unsigned32 | M  |  V  |
-     Interim-Interval                       |    |     |
-   Accounting-      483  9.8.7   Enumerated | M  |  V  |
-     Realtime-Required                      |    |     |
-   Acct-            50   9.8.5   UTF8String | M  |  V  |
-     Multi-Session-Id                       |    |     |
-   Accounting-      485  9.8.3   Unsigned32 | M  |  V  |
-     Record-Number                          |    |     |
-   Accounting-      480  9.8.1   Enumerated | M  |  V  |
-     Record-Type                            |    |     |
-   Acct-             44  9.8.4   OctetString| M  |  V  |
-    Session-Id                              |    |     |
-   Accounting-      287  9.8.6   Unsigned64 | M  |  V  |
-     Sub-Session-Id                         |    |     |
-   Acct-            259  6.9     Unsigned32 | M  |  V  |
-     Application-Id                         |    |     |
-   Auth-            258  6.8     Unsigned32 | M  |  V  |
-     Application-Id                         |    |     |
-   Auth-Request-    274  8.7     Enumerated | M  |  V  |
-      Type                                  |    |     |
-   Authorization-   291  8.9     Unsigned32 | M  |  V  |
-     Lifetime                               |    |     |
-   Auth-Grace-      276  8.10    Unsigned32 | M  |  V  |
-     Period                                 |    |     |
-   Auth-Session-    277  8.11    Enumerated | M  |  V  |
-     State                                  |    |     |
-   Re-Auth-Request- 285  8.12    Enumerated | M  |  V  |
-     Type                                   |    |     |
-   Class             25  8.20    OctetString| M  |  V  |
-   Destination-Host 293  6.5     DiamIdent  | M  |  V  |
-   Destination-     283  6.6     DiamIdent  | M  |  V  |
-     Realm                                  |    |     |
-   Disconnect-Cause 273  5.4.3   Enumerated | M  |  V  |
-   Error-Message    281  7.3     UTF8String |    | V,M |
-   Error-Reporting- 294  7.4     DiamIdent  |    | V,M |
-     Host                                   |    |     |
-   Event-Timestamp   55  8.21    Time       | M  |  V  |
-   Experimental-    297  7.6     Grouped    | M  |  V  |
-      Result                                |    |     |
-   -----------------------------------------|----+-----|
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 56]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-                                            +----------+
-                                            | AVP Flag |
-                                            |  rules   |
-                                            |----+-----|
-                   AVP  Section             |    |MUST |
-   Attribute Name  Code Defined  Data Type  |MUST| NOT |
-   -----------------------------------------|----+-----|
-   Experimental-    298  7.7     Unsigned32 | M  |  V  |
-      Result-Code                           |    |     |
-   Failed-AVP       279  7.5     Grouped    | M  |  V  |
-   Firmware-        267  5.3.4   Unsigned32 |    | V,M |
-     Revision                               |    |     |
-   Host-IP-Address  257  5.3.5   Address    | M  |  V  |
-   Inband-Security                          | M  |  V  |
-      -Id           299  6.10    Unsigned32 |    |     |
-   Multi-Round-     272  8.19    Unsigned32 | M  |  V  |
-     Time-Out                               |    |     |
-   Origin-Host      264  6.3     DiamIdent  | M  |  V  |
-   Origin-Realm     296  6.4     DiamIdent  | M  |  V  |
-   Origin-State-Id  278  8.16    Unsigned32 | M  |  V  |
-   Product-Name     269  5.3.7   UTF8String |    | V,M |
-   Proxy-Host       280  6.7.3   DiamIdent  | M  |  V  |
-   Proxy-Info       284  6.7.2   Grouped    | M  |  V  |
-   Proxy-State       33  6.7.4   OctetString| M  |  V  |
-   Redirect-Host    292  6.12    DiamURI    | M  |  V  |
-   Redirect-Host-   261  6.13    Enumerated | M  |  V  |
-      Usage                                 |    |     |
-   Redirect-Max-    262  6.14    Unsigned32 | M  |  V  |
-      Cache-Time                            |    |     |
-   Result-Code      268  7.1     Unsigned32 | M  |  V  |
-   Route-Record     282  6.7.1   DiamIdent  | M  |  V  |
-   Session-Id       263  8.8     UTF8String | M  |  V  |
-   Session-Timeout   27  8.13    Unsigned32 | M  |  V  |
-   Session-Binding  270  8.17    Unsigned32 | M  |  V  |
-   Session-Server-  271  8.18    Enumerated | M  |  V  |
-     Failover                               |    |     |
-   Supported-       265  5.3.6   Unsigned32 | M  |  V  |
-     Vendor-Id                              |    |     |
-   Termination-     295  8.15    Enumerated | M  |  V  |
-      Cause                                 |    |     |
-   User-Name          1  8.14    UTF8String | M  |  V  |
-   Vendor-Id        266  5.3.3   Unsigned32 | M  |  V  |
-   Vendor-Specific- 260  6.11    Grouped    | M  |  V  |
-      Application-Id                        |    |     |
-   -----------------------------------------|----+-----|
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 57]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-5.  Diameter Peers
-
-   This section describes how Diameter nodes establish connections and
-   communicate with peers.
-
-5.1.  Peer Connections
-
-   Connections between diameter peers are established using their valid
-   DiameterIdentity.  A Diameter node initiating a connection to a peer
-   MUST know the peer's DiameterIdentity.  Methods for discovering a
-   Diameter peer can be found in Section 5.2.
-
-   Although a Diameter node may have many possible peers with which it
-   is able to communicate, it may not be economical to have an
-   established connection to all of them.  At a minimum, a Diameter node
-   SHOULD have an established connection with two peers per realm, known
-   as the primary and secondary peers.  Of course, a node MAY have
-   additional connections, if it is deemed necessary.  Typically, all
-   messages for a realm are sent to the primary peer but, in the event
-   that failover procedures are invoked, any pending requests are sent
-   to the secondary peer.  However, implementations are free to load
-   balance requests between a set of peers.
-
-   Note that a given peer MAY act as a primary for a given realm while
-   acting as a secondary for another realm.
-
-   When a peer is deemed suspect, which could occur for various reasons,
-   including not receiving a DWA within an allotted time frame, no new
-   requests should be forwarded to the peer, but failover procedures are
-   invoked.  When an active peer is moved to this mode, additional
-   connections SHOULD be established to ensure that the necessary number
-   of active connections exists.
-
-   There are two ways that a peer is removed from the suspect peer list:
-
-   1.  The peer is no longer reachable, causing the transport connection
-       to be shut down.  The peer is moved to the closed state.
-
-   2.  Three watchdog messages are exchanged with accepted round-trip
-       times, and the connection to the peer is considered stabilized.
-
-   In the event the peer being removed is either the primary or
-   secondary, an alternate peer SHOULD replace the deleted peer and
-   assume the role of either primary or secondary.
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 58]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-5.2.  Diameter Peer Discovery
-
-   Allowing for dynamic Diameter agent discovery makes possible simpler
-   and more robust deployment of Diameter services.  In order to promote
-   interoperable implementations of Diameter peer discovery, the
-   following mechanisms (manual configuration and DNS) are described.
-   These are based on existing IETF standards.  Both mechanisms MUST be
-   supported by all Diameter implementations; either MAY be used.
-
-   There are two cases where Diameter peer discovery may be performed.
-   The first is when a Diameter client needs to discover a first-hop
-   Diameter agent.  The second case is when a Diameter agent needs to
-   discover another agent for further handling of a Diameter operation.
-   In both cases, the following 'search order' is recommended:
-
-   1.  The Diameter implementation consults its list of statically
-       (manually) configured Diameter agent locations.  These will be
-       used if they exist and respond.
-
-   2.  The Diameter implementation performs a NAPTR query for a server
-       in a particular realm.  The Diameter implementation has to know,
-       in advance, in which realm to look for a Diameter agent.  This
-       could be deduced, for example, from the 'realm' in an NAI on
-       which a Diameter implementation needed to perform a Diameter
-       operation.
-
-       The NAPTR usage in Diameter follows the S-NAPTR DDDS application
-       [RFC3958] in which the SERVICE field includes tags for the
-       desired application and supported application protocol.  The
-       application service tag for a Diameter application is 'aaa' and
-       the supported application protocol tags are 'diameter.tcp',
-       'diameter.sctp', 'diameter.dtls', or 'diameter.tls.tcp'
-       [RFC6408].
-
-       The client can follow the resolution process defined by the
-       S-NAPTR DDDS [RFC3958] application to find a matching SRV, A, or
-       AAAA record of a suitable peer.  The domain suffixes in the NAPTR
-       replacement field SHOULD match the domain of the original query.
-       An example can be found in Appendix B.
-
-   3.  If no NAPTR records are found, the requester directly queries for
-       one of the following SRV records: for Diameter over TCP, use
-       "_diameter._tcp.realm"; for Diameter over TLS, use
-       "_diameters._tcp.realm"; for Diameter over SCTP, use
-       "_diameter._sctp.realm"; for Diameter over DTLS, use
-       "_diameters._sctp.realm".  If SRV records are found, then the
-       requester can perform address record query (A RR's and/or AAAA
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 59]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-       RR's) for the target hostname specified in the SRV records
-       following the rules given in [RFC2782].  If no SRV records are
-       found, the requester gives up.
-
-   If the server is using a site certificate, the domain name in the
-   NAPTR query and the domain name in the replacement field MUST both be
-   valid based on the site certificate handed out by the server in the
-   TLS/TCP and DTLS/SCTP or Internet Key Exchange Protocol (IKE)
-   exchange.  Similarly, the domain name in the SRV query and the domain
-   name in the target in the SRV record MUST both be valid based on the
-   same site certificate.  Otherwise, an attacker could modify the DNS
-   records to contain replacement values in a different domain, and the
-   client could not validate whether this was the desired behavior or
-   the result of an attack.
-
-   Also, the Diameter peer MUST check to make sure that the discovered
-   peers are authorized to act in its role.  Authentication via IKE or
-   TLS/TCP and DTLS/SCTP, or validation of DNS RRs via DNSSEC is not
-   sufficient to conclude this.  For example, a web server may have
-   obtained a valid TLS/TCP and DTLS/SCTP certificate, and secured RRs
-   may be included in the DNS, but this does not imply that it is
-   authorized to act as a Diameter server.
-
-   Authorization can be achieved, for example, by the configuration of a
-   Diameter server Certification Authority (CA).  The server CA issues a
-   certificate to the Diameter server, which includes an Object
-   Identifier (OID) to indicate the subject is a Diameter server in the
-   Extended Key Usage extension [RFC5280].  This certificate is then
-   used during TLS/TCP, DTLS/SCTP, or IKE security negotiation.
-   However, note that, at the time of writing, no Diameter server
-   Certification Authorities exist.
-
-   A dynamically discovered peer causes an entry in the peer table (see
-   Section 2.6) to be created.  Note that entries created via DNS MUST
-   expire (or be refreshed) within the DNS Time to Live (TTL).  If a
-   peer is discovered outside of the local realm, a routing table entry
-   (see Section 2.7) for the peer's realm is created.  The routing table
-   entry's expiration MUST match the peer's expiration value.
-
-5.3.  Capabilities Exchange
-
-   When two Diameter peers establish a transport connection, they MUST
-   exchange the Capabilities Exchange messages, as specified in the peer
-   state machine (see Section 5.6).  This message allows the discovery
-   of a peer's identity and its capabilities (protocol version number,
-   the identifiers of supported Diameter applications, security
-   mechanisms, etc.).
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 60]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   The receiver only issues commands to its peers that have advertised
-   support for the Diameter application that defines the command.  A
-   Diameter node MUST cache the supported Application Ids in order to
-   ensure that unrecognized commands and/or AVPs are not unnecessarily
-   sent to a peer.
-
-   A receiver of a Capabilities-Exchange-Request (CER) message that does
-   not have any applications in common with the sender MUST return a
-   Capabilities-Exchange-Answer (CEA) with the Result-Code AVP set to
-   DIAMETER_NO_COMMON_APPLICATION and SHOULD disconnect the transport
-   layer connection.  Note that receiving a CER or CEA from a peer
-   advertising itself as a relay (see Section 2.4) MUST be interpreted
-   as having common applications with the peer.
-
-   The receiver of the Capabilities-Exchange-Request (CER) MUST
-   determine common applications by computing the intersection of its
-   own set of supported Application Ids against all of the
-   Application-Id AVPs (Auth-Application-Id, Acct-Application-Id, and
-   Vendor-Specific-Application-Id) present in the CER.  The value of the
-   Vendor-Id AVP in the Vendor-Specific-Application-Id MUST NOT be used
-   during computation.  The sender of the Capabilities-Exchange-Answer
-   (CEA) SHOULD include all of its supported applications as a hint to
-   the receiver regarding all of its application capabilities.
-
-   Diameter implementations SHOULD first attempt to establish a TLS/TCP
-   and DTLS/SCTP connection prior to the CER/CEA exchange.  This
-   protects the capabilities information of both peers.  To support
-   older Diameter implementations that do not fully conform to this
-   document, the transport security MAY still be negotiated via an
-   Inband-Security AVP.  In this case, the receiver of a Capabilities-
-   Exchange-Request (CER) message that does not have any security
-   mechanisms in common with the sender MUST return a Capabilities-
-   Exchange-Answer (CEA) with the Result-Code AVP set to
-   DIAMETER_NO_COMMON_SECURITY and SHOULD disconnect the transport layer
-   connection.
-
-   CERs received from unknown peers MAY be silently discarded, or a CEA
-   MAY be issued with the Result-Code AVP set to DIAMETER_UNKNOWN_PEER.
-   In both cases, the transport connection is closed.  If the local
-   policy permits receiving CERs from unknown hosts, a successful CEA
-   MAY be returned.  If a CER from an unknown peer is answered with a
-   successful CEA, the lifetime of the peer entry is equal to the
-   lifetime of the transport connection.  In case of a transport
-   failure, all the pending transactions destined to the unknown peer
-   can be discarded.
-
-   The CER and CEA messages MUST NOT be proxied, redirected, or relayed.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 61]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Since the CER/CEA messages cannot be proxied, it is still possible
-   that an upstream agent will receive a message for which it has no
-   available peers to handle the application that corresponds to the
-   Command Code.  In such instances, the 'E' bit is set in the answer
-   message (Section 7) with the Result-Code AVP set to
-   DIAMETER_UNABLE_TO_DELIVER to inform the downstream agent to take
-   action (e.g., re-routing request to an alternate peer).
-
-   With the exception of the Capabilities-Exchange-Request message, a
-   message of type Request that includes the Auth-Application-Id or
-   Acct-Application-Id AVPs, or a message with an application-specific
-   Command Code MAY only be forwarded to a host that has explicitly
-   advertised support for the application (or has advertised the Relay
-   Application Id).
-
-5.3.1.  Capabilities-Exchange-Request
-
-   The Capabilities-Exchange-Request (CER), indicated by the Command
-   Code set to 257 and the Command Flags' 'R' bit set, is sent to
-   exchange local capabilities.  Upon detection of a transport failure,
-   this message MUST NOT be sent to an alternate peer.
-
-   When Diameter is run over SCTP [RFC4960] or DTLS/SCTP [RFC6083],
-   which allow for connections to span multiple interfaces and multiple
-   IP addresses, the Capabilities-Exchange-Request message MUST contain
-   one Host-IP-Address AVP for each potential IP address that MAY be
-   locally used when transmitting Diameter messages.
-
-      Message Format
-
-         &lt;CER> ::= &lt; Diameter Header: 257, REQ >
-                   { Origin-Host }
-                   { Origin-Realm }
-                1* { Host-IP-Address }
-                   { Vendor-Id }
-                   { Product-Name }
-                   [ Origin-State-Id ]
-                 * [ Supported-Vendor-Id ]
-                 * [ Auth-Application-Id ]
-                 * [ Inband-Security-Id ]
-                 * [ Acct-Application-Id ]
-                 * [ Vendor-Specific-Application-Id ]
-                   [ Firmware-Revision ]
-                 * [ AVP ]
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 62]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-5.3.2.  Capabilities-Exchange-Answer
-
-   The Capabilities-Exchange-Answer (CEA), indicated by the Command Code
-   set to 257 and the Command Flags' 'R' bit cleared, is sent in
-   response to a CER message.
-
-   When Diameter is run over SCTP [RFC4960] or DTLS/SCTP [RFC6083],
-   which allow connections to span multiple interfaces, hence, multiple
-   IP addresses, the Capabilities-Exchange-Answer message MUST contain
-   one Host-IP-Address AVP for each potential IP address that MAY be
-   locally used when transmitting Diameter messages.
-
-   Message Format
-
-         &lt;CEA> ::= &lt; Diameter Header: 257 >
-                   { Result-Code }
-                   { Origin-Host }
-                   { Origin-Realm }
-                1* { Host-IP-Address }
-                   { Vendor-Id }
-                   { Product-Name }
-                   [ Origin-State-Id ]
-                   [ Error-Message ]
-                   [ Failed-AVP ]
-                 * [ Supported-Vendor-Id ]
-                 * [ Auth-Application-Id ]
-                 * [ Inband-Security-Id ]
-                 * [ Acct-Application-Id ]
-                 * [ Vendor-Specific-Application-Id ]
-                   [ Firmware-Revision ]
-                 * [ AVP ]
-
-5.3.3.  Vendor-Id AVP
-
-   The Vendor-Id AVP (AVP Code 266) is of type Unsigned32 and contains
-   the IANA "SMI Network Management Private Enterprise Codes"
-   [ENTERPRISE] value assigned to the Diameter Software vendor.  It is
-   envisioned that the combination of the Vendor-Id, Product-Name
-   (Section 5.3.7), and Firmware-Revision (Section 5.3.4) AVPs may
-   provide useful debugging information.
-
-   A Vendor-Id value of zero in the CER or CEA message is reserved and
-   indicates that this field is ignored.
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 63]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-5.3.4.  Firmware-Revision AVP
-
-   The Firmware-Revision AVP (AVP Code 267) is of type Unsigned32 and is
-   used to inform a Diameter peer of the firmware revision of the
-   issuing device.
-
-   For devices that do not have a firmware revision (general-purpose
-   computers running Diameter software modules, for instance), the
-   revision of the Diameter software module may be reported instead.
-
-5.3.5.  Host-IP-Address AVP
-
-   The Host-IP-Address AVP (AVP Code 257) is of type Address and is used
-   to inform a Diameter peer of the sender's IP address.  All source
-   addresses that a Diameter node expects to use with SCTP [RFC4960] or
-   DTLS/SCTP [RFC6083] MUST be advertised in the CER and CEA messages by
-   including a Host-IP-Address AVP for each address.
-
-5.3.6.  Supported-Vendor-Id AVP
-
-   The Supported-Vendor-Id AVP (AVP Code 265) is of type Unsigned32 and
-   contains the IANA "SMI Network Management Private Enterprise Codes"
-   [ENTERPRISE] value assigned to a vendor other than the device vendor
-   but including the application vendor.  This is used in the CER and
-   CEA messages in order to inform the peer that the sender supports (a
-   subset of) the Vendor-Specific AVPs defined by the vendor identified
-   in this AVP.  The value of this AVP MUST NOT be set to zero.
-   Multiple instances of this AVP containing the same value SHOULD NOT
-   be sent.
-
-5.3.7.  Product-Name AVP
-
-   The Product-Name AVP (AVP Code 269) is of type UTF8String and
-   contains the vendor-assigned name for the product.  The Product-Name
-   AVP SHOULD remain constant across firmware revisions for the same
-   product.
-
-5.4.  Disconnecting Peer Connections
-
-   When a Diameter node disconnects one of its transport connections,
-   its peer cannot know the reason for the disconnect and will most
-   likely assume that a connectivity problem occurred or that the peer
-   has rebooted.  In these cases, the peer may periodically attempt to
-   reconnect, as stated in Section 2.1.  In the event that the
-   disconnect was a result of either a shortage of internal resources or
-   simply that the node in question has no intentions of forwarding any
-   Diameter messages to the peer in the foreseeable future, a periodic
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 64]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   connection request would not be welcomed.  The Disconnection-Reason
-   AVP contains the reason the Diameter node issued the Disconnect-Peer-
-   Request message.
-
-   The Disconnect-Peer-Request message is used by a Diameter node to
-   inform its peer of its intent to disconnect the transport layer and
-   that the peer shouldn't reconnect unless it has a valid reason to do
-   so (e.g., message to be forwarded).  Upon receipt of the message, the
-   Disconnect-Peer-Answer message is returned, which SHOULD contain an
-   error if messages have recently been forwarded, and are likely in
-   flight, which would otherwise cause a race condition.
-
-   The receiver of the Disconnect-Peer-Answer message initiates the
-   transport disconnect.  The sender of the Disconnect-Peer-Answer
-   message should be able to detect the transport closure and clean up
-   the connection.
-
-5.4.1.  Disconnect-Peer-Request
-
-   The Disconnect-Peer-Request (DPR), indicated by the Command Code set
-   to 282 and the Command Flags' 'R' bit set, is sent to a peer to
-   inform it of its intentions to shut down the transport connection.
-   Upon detection of a transport failure, this message MUST NOT be sent
-   to an alternate peer.
-
-      Message Format
-
-         &lt;DPR>  ::= &lt; Diameter Header: 282, REQ >
-                    { Origin-Host }
-                    { Origin-Realm }
-                    { Disconnect-Cause }
-                  * [ AVP ]
-
-5.4.2.   Disconnect-Peer-Answer
-
-   The Disconnect-Peer-Answer (DPA), indicated by the Command Code set
-   to 282 and the Command Flags' 'R' bit cleared, is sent as a response
-   to the Disconnect-Peer-Request message.  Upon receipt of this
-   message, the transport connection is shut down.
-
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 65]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      Message Format
-
-         &lt;DPA>  ::= &lt; Diameter Header: 282 >
-                    { Result-Code }
-                    { Origin-Host }
-                    { Origin-Realm }
-                    [ Error-Message ]
-                    [ Failed-AVP ]
-                  * [ AVP ]
-
-
-5.4.3.   Disconnect-Cause AVP
-
-   The Disconnect-Cause AVP (AVP Code 273) is of type Enumerated.  A
-   Diameter node MUST include this AVP in the Disconnect-Peer-Request
-   message to inform the peer of the reason for its intention to shut
-   down the transport connection.  The following values are supported:
-
-      REBOOTING                         0
-         A scheduled reboot is imminent.  A receiver of a DPR with
-         above result code MAY attempt reconnection.
-
-      BUSY                              1
-         The peer's internal resources are constrained, and it has
-         determined that the transport connection needs to be closed.
-         A receiver of a DPR with above result code SHOULD NOT attempt
-         reconnection.
-
-      DO_NOT_WANT_TO_TALK_TO_YOU        2
-         The peer has determined that it does not see a need for the
-         transport connection to exist, since it does not expect any
-         messages to be exchanged in the near future.  A receiver of a
-         DPR with above result code SHOULD NOT attempt reconnection.
-
-5.5.  Transport Failure Detection
-
-   Given the nature of the Diameter protocol, it is recommended that
-   transport failures be detected as soon as possible.  Detecting such
-   failures will minimize the occurrence of messages sent to unavailable
-   agents, resulting in unnecessary delays, and will provide better
-   failover performance.  The Device-Watchdog-Request and Device-
-   Watchdog-Answer messages, defined in this section, are used to pro-
-   actively detect transport failures.
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 66]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-5.5.1.  Device-Watchdog-Request
-
-   The Device-Watchdog-Request (DWR), indicated by the Command Code set
-   to 280 and the Command Flags' 'R' bit set, is sent to a peer when no
-   traffic has been exchanged between two peers (see Section 5.5.3).
-   Upon detection of a transport failure, this message MUST NOT be sent
-   to an alternate peer.
-
-      Message Format
-
-         &lt;DWR>  ::= &lt; Diameter Header: 280, REQ >
-                    { Origin-Host }
-                    { Origin-Realm }
-                    [ Origin-State-Id ]
-                  * [ AVP ]
-
-5.5.2.  Device-Watchdog-Answer
-
-   The Device-Watchdog-Answer (DWA), indicated by the Command Code set
-   to 280 and the Command Flags' 'R' bit cleared, is sent as a response
-   to the Device-Watchdog-Request message.
-
-      Message Format
-
-         &lt;DWA>  ::= &lt; Diameter Header: 280 >
-                    { Result-Code }
-                    { Origin-Host }
-                    { Origin-Realm }
-                    [ Error-Message ]
-                    [ Failed-AVP ]
-                    [ Origin-State-Id ]
-                  * [ AVP ]
-
-5.5.3.   Transport Failure Algorithm
-
-   The transport failure algorithm is defined in [RFC3539].  All
-   Diameter implementations MUST support the algorithm defined in that
-   specification in order to be compliant to the Diameter base protocol.
-
-5.5.4.  Failover and Failback Procedures
-
-   In the event that a transport failure is detected with a peer, it is
-   necessary for all pending request messages to be forwarded to an
-   alternate agent, if possible.  This is commonly referred to as
-   "failover".
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 67]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   In order for a Diameter node to perform failover procedures, it is
-   necessary for the node to maintain a pending message queue for a
-   given peer.  When an answer message is received, the corresponding
-   request is removed from the queue.  The Hop-by-Hop Identifier field
-   is used to match the answer with the queued request.
-
-   When a transport failure is detected, if possible, all messages in
-   the queue are sent to an alternate agent with the T flag set.  On
-   booting a Diameter client or agent, the T flag is also set on any
-   remaining records in non-volatile storage that are still waiting to
-   be transmitted.  An example of a case where it is not possible to
-   forward the message to an alternate server is when the message has a
-   fixed destination, and the unavailable peer is the message's final
-   destination (see Destination-Host AVP).  Such an error requires that
-   the agent return an answer message with the 'E' bit set and the
-   Result-Code AVP set to DIAMETER_UNABLE_TO_DELIVER.
-
-   It is important to note that multiple identical requests or answers
-   MAY be received as a result of a failover.  The End-to-End Identifier
-   field in the Diameter header along with the Origin-Host AVP MUST be
-   used to identify duplicate messages.
-
-   As described in Section 2.1, a connection request should be
-   periodically attempted with the failed peer in order to re-establish
-   the transport connection.  Once a connection has been successfully
-   established, messages can once again be forwarded to the peer.  This
-   is commonly referred to as "failback".
-
-5.6.  Peer State Machine
-
-   This section contains a finite state machine that MUST be observed by
-   all Diameter implementations.  Each Diameter node MUST follow the
-   state machine described below when communicating with each peer.
-   Multiple actions are separated by commas, and may continue on
-   succeeding lines, as space requires.  Similarly, state and next state
-   may also span multiple lines, as space requires.
-
-   This state machine is closely coupled with the state machine
-   described in [RFC3539], which is used to open, close, failover,
-   probe, and reopen transport connections.  In particular, note that
-   [RFC3539] requires the use of watchdog messages to probe connections.
-   For Diameter, DWR and DWA messages are to be used.
-
-   The I- prefix is used to represent the initiator (connecting)
-   connection, while the R- prefix is used to represent the responder
-   (listening) connection.  The lack of a prefix indicates that the
-   event or action is the same regardless of the connection on which the
-   event occurred.
-
-
-
-Fajardo, et al.              Standards Track                   [Page 68]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   The stable states that a state machine may be in are Closed, I-Open,
-   and R-Open; all other states are intermediate.  Note that I-Open and
-   R-Open are equivalent except for whether the initiator or responder
-   transport connection is used for communication.
-
-   A CER message is always sent on the initiating connection immediately
-   after the connection request is successfully completed.  In the case
-   of an election, one of the two connections will shut down.  The
-   responder connection will survive if the Origin-Host of the local
-   Diameter entity is higher than that of the peer; the initiator
-   connection will survive if the peer's Origin-Host is higher.  All
-   subsequent messages are sent on the surviving connection.  Note that
-   the results of an election on one peer are guaranteed to be the
-   inverse of the results on the other.
-
-   For TLS/TCP and DTLS/SCTP usage, a TLS/TCP and DTLS/SCTP handshake
-   SHOULD begin when both ends are in the closed state prior to any
-   Diameter message exchanges.  The TLS/TCP and DTLS/SCTP connection
-   SHOULD be established before sending any CER or CEA message to secure
-   and protect the capabilities information of both peers.  The TLS/TCP
-   and DTLS/SCTP connection SHOULD be disconnected when the state
-   machine moves to the closed state.  When connecting to responders
-   that do not conform to this document (i.e., older Diameter
-   implementations that are not prepared to received TLS/TCP and DTLS/
-   SCTP connections in the closed state), the initial TLS/TCP and DTLS/
-   SCTP connection attempt will fail.  The initiator MAY then attempt to
-   connect via TCP or SCTP and initiate the TLS/TCP and DTLS/SCTP
-   handshake when both ends are in the open state.  If the handshake is
-   successful, all further messages will be sent via TLS/TCP and DTLS/
-   SCTP.  If the handshake fails, both ends move to the closed state.
-
-   The state machine constrains only the behavior of a Diameter
-   implementation as seen by Diameter peers through events on the wire.
-
-   Any implementation that produces equivalent results is considered
-   compliant.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 69]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      state            event              action         next state
-      -----------------------------------------------------------------
-      Closed           Start            I-Snd-Conn-Req   Wait-Conn-Ack
-                       R-Conn-CER       R-Accept,        R-Open
-                                        Process-CER,
-                                        R-Snd-CEA
-
-      Wait-Conn-Ack    I-Rcv-Conn-Ack   I-Snd-CER        Wait-I-CEA
-                       I-Rcv-Conn-Nack  Cleanup          Closed
-                       R-Conn-CER       R-Accept,        Wait-Conn-Ack/
-                                        Process-CER      Elect
-                       Timeout          Error            Closed
-
-      Wait-I-CEA       I-Rcv-CEA        Process-CEA      I-Open
-                       R-Conn-CER       R-Accept,        Wait-Returns
-                                        Process-CER,
-                                        Elect
-                       I-Peer-Disc      I-Disc           Closed
-                       I-Rcv-Non-CEA    Error            Closed
-                       Timeout          Error            Closed
-
-      Wait-Conn-Ack/   I-Rcv-Conn-Ack   I-Snd-CER,Elect  Wait-Returns
-      Elect            I-Rcv-Conn-Nack  R-Snd-CEA        R-Open
-                       R-Peer-Disc      R-Disc           Wait-Conn-Ack
-                       R-Conn-CER       R-Reject         Wait-Conn-Ack/
-                                                         Elect
-                       Timeout          Error            Closed
-
-      Wait-Returns     Win-Election     I-Disc,R-Snd-CEA R-Open
-                       I-Peer-Disc      I-Disc,          R-Open
-                                        R-Snd-CEA
-                       I-Rcv-CEA        R-Disc           I-Open
-                       R-Peer-Disc      R-Disc           Wait-I-CEA
-                       R-Conn-CER       R-Reject         Wait-Returns
-                       Timeout          Error            Closed
-
-      R-Open           Send-Message     R-Snd-Message    R-Open
-                       R-Rcv-Message    Process          R-Open
-                       R-Rcv-DWR        Process-DWR,     R-Open
-                                        R-Snd-DWA
-                       R-Rcv-DWA        Process-DWA      R-Open
-                       R-Conn-CER       R-Reject         R-Open
-                       Stop             R-Snd-DPR        Closing
-                       R-Rcv-DPR        R-Snd-DPA        Closing
-                       R-Peer-Disc      R-Disc           Closed
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 70]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      I-Open           Send-Message     I-Snd-Message    I-Open
-                       I-Rcv-Message    Process          I-Open
-                       I-Rcv-DWR        Process-DWR,     I-Open
-                                        I-Snd-DWA
-                       I-Rcv-DWA        Process-DWA      I-Open
-                       R-Conn-CER       R-Reject         I-Open
-                       Stop             I-Snd-DPR        Closing
-                       I-Rcv-DPR        I-Snd-DPA        Closing
-                       I-Peer-Disc      I-Disc           Closed
-
-      Closing          I-Rcv-DPA        I-Disc           Closed
-                       R-Rcv-DPA        R-Disc           Closed
-                       Timeout          Error            Closed
-                       I-Peer-Disc      I-Disc           Closed
-                       R-Peer-Disc      R-Disc           Closed
-
-5.6.1.  Incoming Connections
-
-   When a connection request is received from a Diameter peer, it is
-   not, in the general case, possible to know the identity of that peer
-   until a CER is received from it.  This is because host and port
-   determine the identity of a Diameter peer; the source port of an
-   incoming connection is arbitrary.  Upon receipt of a CER, the
-   identity of the connecting peer can be uniquely determined from the
-   Origin-Host.
-
-   For this reason, a Diameter peer must employ logic separate from the
-   state machine to receive connection requests, accept them, and await
-   the CER.  Once the CER arrives on a new connection, the Origin-Host
-   that identifies the peer is used to locate the state machine
-   associated with that peer, and the new connection and CER are passed
-   to the state machine as an R-Conn-CER event.
-
-   The logic that handles incoming connections SHOULD close and discard
-   the connection if any message other than a CER arrives or if an
-   implementation-defined timeout occurs prior to receipt of CER.
-
-   Because handling of incoming connections up to and including receipt
-   of a CER requires logic, separate from that of any individual state
-   machine associated with a particular peer, it is described separately
-   in this section rather than in the state machine above.
-
-5.6.2.  Events
-
-   Transitions and actions in the automaton are caused by events.  In
-   this section, we will ignore the I- and R- prefixes, since the actual
-   event would be identical, but it would occur on one of two possible
-   connections.
-
-
-
-Fajardo, et al.              Standards Track                   [Page 71]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Start          The Diameter application has signaled that a
-                  connection should be initiated with the peer.
-
-   R-Conn-CER     An acknowledgement is received stating that the
-                  transport connection has been established, and the
-                  associated CER has arrived.
-
-   Rcv-Conn-Ack   A positive acknowledgement is received confirming that
-                  the transport connection is established.
-
-   Rcv-Conn-Nack  A negative acknowledgement was received stating that
-                  the transport connection was not established.
-
-   Timeout        An application-defined timer has expired while waiting
-                  for some event.
-
-   Rcv-CER        A CER message from the peer was received.
-
-   Rcv-CEA        A CEA message from the peer was received.
-
-   Rcv-Non-CEA    A message, other than a CEA, from the peer was
-                  received.
-
-   Peer-Disc      A disconnection indication from the peer was received.
-
-   Rcv-DPR        A DPR message from the peer was received.
-
-   Rcv-DPA        A DPA message from the peer was received.
-
-   Win-Election   An election was held, and the local node was the
-                  winner.
-
-   Send-Message   A message is to be sent.
-
-   Rcv-Message    A message other than CER, CEA, DPR, DPA, DWR, or DWA
-                  was received.
-
-   Stop           The Diameter application has signaled that a
-                  connection should be terminated (e.g., on system
-                  shutdown).
-
-5.6.3.  Actions
-
-   Actions in the automaton are caused by events and typically indicate
-   the transmission of packets and/or an action to be taken on the
-   connection.  In this section, we will ignore the I- and R- prefixes,
-   since the actual action would be identical, but it would occur on one
-   of two possible connections.
-
-
-
-Fajardo, et al.              Standards Track                   [Page 72]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Snd-Conn-Req   A transport connection is initiated with the peer.
-
-   Accept         The incoming connection associated with the R-Conn-CER
-                  is accepted as the responder connection.
-
-   Reject         The incoming connection associated with the R-Conn-CER
-                  is disconnected.
-
-   Process-CER    The CER associated with the R-Conn-CER is processed.
-
-   Snd-CER        A CER message is sent to the peer.
-
-   Snd-CEA        A CEA message is sent to the peer.
-
-   Cleanup        If necessary, the connection is shut down, and any
-                  local resources are freed.
-
-   Error          The transport layer connection is disconnected,
-                  either politely or abortively, in response to
-                  an error condition.  Local resources are freed.
-
-   Process-CEA    A received CEA is processed.
-
-   Snd-DPR        A DPR message is sent to the peer.
-
-   Snd-DPA        A DPA message is sent to the peer.
-
-   Disc           The transport layer connection is disconnected,
-                  and local resources are freed.
-
-   Elect          An election occurs (see Section 5.6.4 for more
-                  information).
-
-   Snd-Message    A message is sent.
-
-   Snd-DWR        A DWR message is sent.
-
-   Snd-DWA        A DWA message is sent.
-
-   Process-DWR    The DWR message is serviced.
-
-   Process-DWA    The DWA message is serviced.
-
-   Process        A message is serviced.
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 73]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-5.6.4.  The Election Process
-
-   The election is performed on the responder.  The responder compares
-   the Origin-Host received in the CER with its own Origin-Host as two
-   streams of octets.  If the local Origin-Host lexicographically
-   succeeds the received Origin-Host, a Win-Election event is issued
-   locally.  Diameter identities are in ASCII form; therefore, the
-   lexical comparison is consistent with DNS case insensitivity, where
-   octets that fall in the ASCII range 'a' through 'z' MUST compare
-   equally to their uppercase counterparts between 'A' and 'Z'.  See
-   Appendix D for interactions between the Diameter protocol and
-   Internationalized Domain Name (IDNs).
-
-   The winner of the election MUST close the connection it initiated.
-   Historically, maintaining the responder side of a connection was more
-   efficient than maintaining the initiator side.  However, current
-   practices makes this distinction irrelevant.
-
-6.  Diameter Message Processing
-
-   This section describes how Diameter requests and answers are created
-   and processed.
-
-6.1.  Diameter Request Routing Overview
-
-   A request is sent towards its final destination using one of the
-   following three combinations of the Destination-Realm and
-   Destination-Host AVPs:
-
-   o  A request that is not able to be proxied (such as a CER) MUST NOT
-      contain either Destination-Realm or Destination-Host AVPs.
-
-   o  A request that needs to be sent to a home server serving a
-      specific realm, but not to a specific server (such as the first
-      request of a series of round trips), MUST contain a Destination-
-      Realm AVP but MUST NOT contain a Destination-Host AVP.  For
-      Diameter clients, the value of the Destination-Realm AVP MAY be
-      extracted from the User-Name AVP, or other methods.
-
-   o  Otherwise, a request that needs to be sent to a specific home
-      server among those serving a given realm MUST contain both the
-      Destination-Realm and Destination-Host AVPs.
-
-   The Destination-Host AVP is used as described above when the
-   destination of the request is fixed, which includes:
-
-   o  Authentication requests that span multiple round trips.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 74]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   o  A Diameter message that uses a security mechanism that makes use
-      of a pre-established session key shared between the source and the
-      final destination of the message.
-
-   o  Server-initiated messages that MUST be received by a specific
-      Diameter client (e.g., access device), such as the Abort-Session-
-      Request message, which is used to request that a particular user's
-      session be terminated.
-
-   Note that an agent can only forward a request to a host described in
-   the Destination-Host AVP if the host in question is included in its
-   peer table (see Section 2.6).  Otherwise, the request is routed based
-   on the Destination-Realm only (see Section 6.1.6).
-
-   When a message is received, the message is processed in the following
-   order:
-
-   o  If the message is destined for the local host, the procedures
-      listed in Section 6.1.4 are followed.
-
-   o  If the message is intended for a Diameter peer with whom the local
-      host is able to directly communicate, the procedures listed in
-      Section 6.1.5 are followed.  This is known as "Request
-      Forwarding".
-
-   o  The procedure listed in Section 6.1.6 is followed, which is known
-      as "Request Routing".
-
-   o  If none of the above are successful, an answer is returned with
-      the Result-Code set to DIAMETER_UNABLE_TO_DELIVER, with the 'E'
-      bit set.
-
-   For routing of Diameter messages to work within an administrative
-   domain, all Diameter nodes within the realm MUST be peers.
-
-   The overview contained in this section (6.1) is intended to provide
-   general guidelines to Diameter developers.  Implementations are free
-   to use different methods than the ones described here as long as they
-   conform to the requirements specified in Sections 6.1.1 through
-   6.1.9.  See Section 7 for more details on error handling.
-
-6.1.1.  Originating a Request
-
-   When creating a request, in addition to any other procedures
-   described in the application definition for that specific request,
-   the following procedures MUST be followed:
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 75]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   o  the Command Code is set to the appropriate value;
-
-   o  the 'R' bit is set;
-
-   o  the End-to-End Identifier is set to a locally unique value;
-
-   o  the Origin-Host and Origin-Realm AVPs MUST be set to the
-      appropriate values, used to identify the source of the message;
-      and
-
-   o  the Destination-Host and Destination-Realm AVPs MUST be set to the
-      appropriate values, as described in Section 6.1.
-
-6.1.2.  Sending a Request
-
-   When sending a request, originated either locally or as the result of
-   a forwarding or routing operation, the following procedures SHOULD be
-   followed:
-
-   o  The Hop-by-Hop Identifier SHOULD be set to a locally unique value.
-
-   o  The message SHOULD be saved in the list of pending requests.
-
-   Other actions to perform on the message based on the particular role
-   the agent is playing are described in the following sections.
-
-6.1.3.  Receiving Requests
-
-   A relay or proxy agent MUST check for forwarding loops when receiving
-   requests.  A loop is detected if the server finds its own identity in
-   a Route-Record AVP.  When such an event occurs, the agent MUST answer
-   with the Result-Code AVP set to DIAMETER_LOOP_DETECTED.
-
-6.1.4.  Processing Local Requests
-
-   A request is known to be for local consumption when one of the
-   following conditions occurs:
-
-   o  The Destination-Host AVP contains the local host's identity;
-
-   o  The Destination-Host AVP is not present, the Destination-Realm AVP
-      contains a realm the server is configured to process locally, and
-      the Diameter application is locally supported; or
-
-   o  Both the Destination-Host and the Destination-Realm are not
-      present.
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 76]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   When a request is locally processed, the rules in Section 6.2 should
-   be used to generate the corresponding answer.
-
-6.1.5.  Request Forwarding
-
-   Request forwarding is done using the Diameter peer table.  The
-   Diameter peer table contains all of the peers with which the local
-   node is able to directly communicate.
-
-   When a request is received, and the host encoded in the Destination-
-   Host AVP is one that is present in the peer table, the message SHOULD
-   be forwarded to the peer.
-
-6.1.6.  Request Routing
-
-   Diameter request message routing is done via realms and Application
-   Ids. A Diameter message that may be forwarded by Diameter agents
-   (proxies, redirect agents, or relay agents) MUST include the target
-   realm in the Destination-Realm AVP.  Request routing SHOULD rely on
-   the Destination-Realm AVP and the Application Id present in the
-   request message header to aid in the routing decision.  The realm MAY
-   be retrieved from the User-Name AVP, which is in the form of a
-   Network Access Identifier (NAI).  The realm portion of the NAI is
-   inserted in the Destination-Realm AVP.
-
-   Diameter agents MAY have a list of locally supported realms and
-   applications, and they MAY have a list of externally supported realms
-   and applications.  When a request is received that includes a realm
-   and/or application that is not locally supported, the message is
-   routed to the peer configured in the routing table (see Section 2.7).
-
-   Realm names and Application Ids are the minimum supported routing
-   criteria, additional information may be needed to support redirect
-   semantics.
-
-6.1.7.  Predictive Loop Avoidance
-
-   Before forwarding or routing a request, Diameter agents, in addition
-   to performing the processing described in Section 6.1.3, SHOULD check
-   for the presence of a candidate route's peer identity in any of the
-   Route-Record AVPs.  In the event of the agent detecting the presence
-   of a candidate route's peer identity in a Route-Record AVP, the agent
-   MUST ignore such a route for the Diameter request message and attempt
-   alternate routes if any exist.  In case all the candidate routes are
-   eliminated by the above criteria, the agent SHOULD return a
-   DIAMETER_UNABLE_TO_DELIVER message.
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 77]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-6.1.8.  Redirecting Requests
-
-   When a redirect agent receives a request whose routing entry is set
-   to REDIRECT, it MUST reply with an answer message with the 'E' bit
-   set, while maintaining the Hop-by-Hop Identifier in the header, and
-   include the Result-Code AVP to DIAMETER_REDIRECT_INDICATION.  Each of
-   the servers associated with the routing entry are added in a separate
-   Redirect-Host AVP.
-
-                     +------------------+
-                     |     Diameter     |
-                     |  Redirect Agent  |
-                     +------------------+
-                      ^    |    2. command + 'E' bit
-       1. Request     |    |    Result-Code =
-      [email protected] |    |    DIAMETER_REDIRECT_INDICATION +
-                      |    |    Redirect-Host AVP(s)
-                      |    v
-                  +-------------+  3. Request  +-------------+
-                  | example.com |------------->| example.net |
-                  |    Relay    |              |   Diameter  |
-                  |    Agent    |&lt;-------------|    Server   |
-                  +-------------+  4. Answer   +-------------+
-
-                     Figure 5: Diameter Redirect Agent
-
-   The receiver of an answer message with the 'E' bit set and the
-   Result-Code AVP set to DIAMETER_REDIRECT_INDICATION uses the Hop-by-
-   Hop Identifier in the Diameter header to identify the request in the
-   pending message queue (see Section 5.5.4) that is to be redirected.
-   If no transport connection exists with the new peer, one is created,
-   and the request is sent directly to it.
-
-   Multiple Redirect-Host AVPs are allowed.  The receiver of the answer
-   message with the 'E' bit set selects exactly one of these hosts as
-   the destination of the redirected message.
-
-   When the Redirect-Host-Usage AVP included in the answer message has a
-   non-zero value, a route entry for the redirect indications is created
-   and cached by the receiver.  The redirect usage for such a route
-   entry is set by the value of Redirect-Host-Usage AVP and the lifetime
-   of the cached route entry is set by Redirect-Max-Cache-Time AVP
-   value.
-
-   It is possible that multiple redirect indications can create multiple
-   cached route entries differing only in their redirect usage and the
-   peer to forward messages to.  As an example, two(2) route entries
-   that are created by two(2) redirect indications results in two(2)
-
-
-
-Fajardo, et al.              Standards Track                   [Page 78]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   cached routes for the same realm and Application Id.  However, one
-   has a redirect usage of ALL_SESSION, where matching requests will be
-   forwarded to one peer; the other has a redirect usage of ALL_REALM,
-   where request are forwarded to another peer.  Therefore, an incoming
-   request that matches the realm and Application Id of both routes will
-   need additional resolution.  In such a case, a routing precedence
-   rule MUST be used against the redirect usage value to resolve the
-   contention.  The precedence rule can be found in Section 6.13.
-
-6.1.9.  Relaying and Proxying Requests
-
-   A relay or proxy agent MUST append a Route-Record AVP to all requests
-   forwarded.  The AVP contains the identity of the peer from which the
-   request was received.
-
-   The Hop-by-Hop Identifier in the request is saved and replaced with a
-   locally unique value.  The source of the request is also saved, which
-   includes the IP address, port, and protocol.
-
-   A relay or proxy agent MAY include the Proxy-Info AVP in requests if
-   it requires access to any local state information when the
-   corresponding response is received.  The Proxy-Info AVP has security
-   implications as state information is distributed to other entities.
-   As such, it is RECOMMENDED that the content of the Proxy-Info AVP be
-   protected with cryptographic mechanisms, for example, by using a
-   keyed message digest such as HMAC-SHA1 [RFC2104].  Such a mechanism,
-   however, requires the management of keys, although only locally at
-   the Diameter server.  Still, a full description of the management of
-   the keys used to protect the Proxy-Info AVP is beyond the scope of
-   this document.  Below is a list of common recommendations:
-
-   o  The keys should be generated securely following the randomness
-      recommendations in [RFC4086].
-
-   o  The keys and cryptographic protection algorithms should be at
-      least 128 bits in strength.
-
-   o  The keys should not be used for any other purpose than generating
-      and verifying instances of the Proxy-Info AVP.
-
-   o  The keys should be changed regularly.
-
-   o  The keys should be changed if the AVP format or cryptographic
-      protection algorithms change.
-
-   The message is then forwarded to the next hop, as identified in the
-   routing table.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 79]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Figure 6 provides an example of message routing using the procedures
-   listed in these sections.
-
-       (Origin-Host=nas.example.net)    (Origin-Host=nas.example.net)
-       (Origin-Realm=example.net)       (Origin-Realm=example.net)
-       (Destination-Realm=example.com)  (Destination-Realm=example.com)
-                                        (Route-Record=nas.example.net)
-      +------+      ------>      +------+      ------>      +------+
-      |      |     (Request)     |      |      (Request)    |      |
-      | NAS  +-------------------+ DRL  +-------------------+ HMS  |
-      |      |                   |      |                   |      |
-      +------+     &lt;------       +------+     &lt;------       +------+
-     example.net    (Answer)   example.net     (Answer)   example.com
-          (Origin-Host=hms.example.com)   (Origin-Host=hms.example.com)
-          (Origin-Realm=example.com)      (Origin-Realm=example.com)
-
-                  Figure 6: Routing of Diameter messages
-
-   Relay and proxy agents are not required to perform full inspection of
-   incoming messages.  At a minimum, validation of the message header
-   and relevant routing AVPs has to be done when relaying messages.
-   Proxy agents may optionally perform more in-depth message validation
-   for applications in which it is interested.
-
-6.2.  Diameter Answer Processing
-
-   When a request is locally processed, the following procedures MUST be
-   applied to create the associated answer, in addition to any
-   additional procedures that MAY be discussed in the Diameter
-   application defining the command:
-
-   o  The same Hop-by-Hop Identifier in the request is used in the
-      answer.
-
-   o  The local host's identity is encoded in the Origin-Host AVP.
-
-   o  The Destination-Host and Destination-Realm AVPs MUST NOT be
-      present in the answer message.
-
-   o  The Result-Code AVP is added with its value indicating success or
-      failure.
-
-   o  If the Session-Id is present in the request, it MUST be included
-      in the answer.
-
-   o  Any Proxy-Info AVPs in the request MUST be added to the answer
-      message, in the same order they were present in the request.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 80]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   o  The 'P' bit is set to the same value as the one in the request.
-
-   o  The same End-to-End identifier in the request is used in the
-      answer.
-
-   Note that the error messages (see Section 7) are also subjected to
-   the above processing rules.
-
-6.2.1.   Processing Received Answers
-
-   A Diameter client or proxy MUST match the Hop-by-Hop Identifier in an
-   answer received against the list of pending requests.  The
-   corresponding message should be removed from the list of pending
-   requests.  It SHOULD ignore answers received that do not match a
-   known Hop-by-Hop Identifier.
-
-6.2.2.  Relaying and Proxying Answers
-
-   If the answer is for a request that was proxied or relayed, the agent
-   MUST restore the original value of the Diameter header's Hop-by-Hop
-   Identifier field.
-
-   If the last Proxy-Info AVP in the message is targeted to the local
-   Diameter server, the AVP MUST be removed before the answer is
-   forwarded.
-
-   If a relay or proxy agent receives an answer with a Result-Code AVP
-   indicating a failure, it MUST NOT modify the contents of the AVP.
-   Any additional local errors detected SHOULD be logged but not
-   reflected in the Result-Code AVP.  If the agent receives an answer
-   message with a Result-Code AVP indicating success, and it wishes to
-   modify the AVP to indicate an error, it MUST modify the Result-Code
-   AVP to contain the appropriate error in the message destined towards
-   the access device as well as include the Error-Reporting-Host AVP; it
-   MUST also issue an STR on behalf of the access device towards the
-   Diameter server.
-
-   The agent MUST then send the answer to the host that it received the
-   original request from.
-
-6.3.  Origin-Host AVP
-
-   The Origin-Host AVP (AVP Code 264) is of type DiameterIdentity, and
-   it MUST be present in all Diameter messages.  This AVP identifies the
-   endpoint that originated the Diameter message.  Relay agents MUST NOT
-   modify this AVP.
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 81]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   The value of the Origin-Host AVP is guaranteed to be unique within a
-   single host.
-
-   Note that the Origin-Host AVP may resolve to more than one address as
-   the Diameter peer may support more than one address.
-
-   This AVP SHOULD be placed as close to the Diameter header as
-   possible.
-
-6.4.  Origin-Realm AVP
-
-   The Origin-Realm AVP (AVP Code 296) is of type DiameterIdentity.
-   This AVP contains the Realm of the originator of any Diameter message
-   and MUST be present in all messages.
-
-   This AVP SHOULD be placed as close to the Diameter header as
-   possible.
-
-6.5.  Destination-Host AVP
-
-   The Destination-Host AVP (AVP Code 293) is of type DiameterIdentity.
-   This AVP MUST be present in all unsolicited agent initiated messages,
-   MAY be present in request messages, and MUST NOT be present in answer
-   messages.
-
-   The absence of the Destination-Host AVP will cause a message to be
-   sent to any Diameter server supporting the application within the
-   realm specified in Destination-Realm AVP.
-
-   This AVP SHOULD be placed as close to the Diameter header as
-   possible.
-
-6.6.  Destination-Realm AVP
-
-   The Destination-Realm AVP (AVP Code 283) is of type DiameterIdentity
-   and contains the realm to which the message is to be routed.  The
-   Destination-Realm AVP MUST NOT be present in answer messages.
-   Diameter clients insert the realm portion of the User-Name AVP.
-   Diameter servers initiating a request message use the value of the
-   Origin-Realm AVP from a previous message received from the intended
-   target host (unless it is known a priori).  When present, the
-   Destination-Realm AVP is used to perform message routing decisions.
-
-   The CCF for a request message that includes the Destination-Realm AVP
-   SHOULD list the Destination-Realm AVP as a required AVP (an AVP
-   indicated as {AVP}); otherwise, the message is inherently a non-
-   routable message.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 82]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   This AVP SHOULD be placed as close to the Diameter header as
-   possible.
-
-6.7.  Routing AVPs
-
-   The AVPs defined in this section are Diameter AVPs used for routing
-   purposes.  These AVPs change as Diameter messages are processed by
-   agents.
-
-6.7.1.  Route-Record AVP
-
-   The Route-Record AVP (AVP Code 282) is of type DiameterIdentity.  The
-   identity added in this AVP MUST be the same as the one received in
-   the Origin-Host of the Capabilities Exchange message.
-
-6.7.2.  Proxy-Info AVP
-
-   The Proxy-Info AVP (AVP Code 284) is of type Grouped.  This AVP
-   contains the identity and local state information of the Diameter
-   node that creates and adds it to a message.  The Grouped Data field
-   has the following CCF grammar:
-
-         Proxy-Info ::= &lt; AVP Header: 284 >
-                        { Proxy-Host }
-                        { Proxy-State }
-                      * [ AVP ]
-
-6.7.3.  Proxy-Host AVP
-
-   The Proxy-Host AVP (AVP Code 280) is of type DiameterIdentity.  This
-   AVP contains the identity of the host that added the Proxy-Info AVP.
-
-6.7.4.  Proxy-State AVP
-
-   The Proxy-State AVP (AVP Code 33) is of type OctetString.  It
-   contains state information that would otherwise be stored at the
-   Diameter entity that created it.  As such, this AVP MUST be treated
-   as opaque data by other Diameter entities.
-
-6.8.  Auth-Application-Id AVP
-
-   The Auth-Application-Id AVP (AVP Code 258) is of type Unsigned32 and
-   is used in order to advertise support of the Authentication and
-   Authorization portion of an application (see Section 2.4).  If
-   present in a message other than CER and CEA, the value of the Auth-
-   Application-Id AVP MUST match the Application Id present in the
-   Diameter message header.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 83]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-6.9.  Acct-Application-Id AVP
-
-   The Acct-Application-Id AVP (AVP Code 259) is of type Unsigned32 and
-   is used in order to advertise support of the accounting portion of an
-   application (see Section 2.4).  If present in a message other than
-   CER and CEA, the value of the Acct-Application-Id AVP MUST match the
-   Application Id present in the Diameter message header.
-
-6.10.  Inband-Security-Id AVP
-
-   The Inband-Security-Id AVP (AVP Code 299) is of type Unsigned32 and
-   is used in order to advertise support of the security portion of the
-   application.  The use of this AVP in CER and CEA messages is NOT
-   RECOMMENDED.  Instead, discovery of a Diameter entity's security
-   capabilities can be done either through static configuration or via
-   Diameter Peer Discovery as described in Section 5.2.
-
-   The following values are supported:
-
-
-   NO_INBAND_SECURITY 0
-
-      This peer does not support TLS/TCP and DTLS/SCTP.  This is the
-      default value, if the AVP is omitted.
-
-   TLS 1
-
-      This node supports TLS/TCP [RFC5246] and DTLS/SCTP [RFC6083]
-      security.
-
-6.11.  Vendor-Specific-Application-Id AVP
-
-   The Vendor-Specific-Application-Id AVP (AVP Code 260) is of type
-   Grouped and is used to advertise support of a vendor-specific
-   Diameter application.  Exactly one instance of either Auth-
-   Application-Id or Acct-Application-Id AVP MUST be present.  The
-   Application Id carried by either Auth-Application-Id or Acct-
-   Application-Id AVP MUST comply with vendor-specific Application Id
-   assignment described in Section 11.3.  It MUST also match the
-   Application Id present in the Diameter header except when used in a
-   CER or CEA message.
-
-   The Vendor-Id AVP is an informational AVP pertaining to the vendor
-   who may have authorship of the vendor-specific Diameter application.
-   It MUST NOT be used as a means of defining a completely separate
-   vendor-specific Application Id space.
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 84]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   The Vendor-Specific-Application-Id AVP SHOULD be placed as close to
-   the Diameter header as possible.
-
-      AVP Format
-
-      &lt;Vendor-Specific-Application-Id> ::= &lt; AVP Header: 260 >
-                                           { Vendor-Id }
-                                           [ Auth-Application-Id ]
-                                           [ Acct-Application-Id ]
-
-   A Vendor-Specific-Application-Id AVP MUST contain exactly one of
-   either Auth-Application-Id or Acct-Application-Id.  If a Vendor-
-   Specific-Application-Id is received without one of these two AVPs,
-   then the recipient SHOULD issue an answer with a Result-Code set to
-   DIAMETER_MISSING_AVP.  The answer SHOULD also include a Failed-AVP,
-   which MUST contain an example of an Auth-Application-Id AVP and an
-   Acct-Application-Id AVP.
-
-   If a Vendor-Specific-Application-Id is received that contains both
-   Auth-Application-Id and Acct-Application-Id, then the recipient MUST
-   issue an answer with Result-Code set to
-   DIAMETER_AVP_OCCURS_TOO_MANY_TIMES.  The answer MUST also include a
-   Failed-AVP, which MUST contain the received Auth-Application-Id AVP
-   and Acct-Application-Id AVP.
-
-6.12.  Redirect-Host AVP
-
-   The Redirect-Host AVP (AVP Code 292) is of type DiameterURI.  One or
-   more instances of this AVP MUST be present if the answer message's
-   'E' bit is set and the Result-Code AVP is set to
-   DIAMETER_REDIRECT_INDICATION.
-
-   Upon receiving the above, the receiving Diameter node SHOULD forward
-   the request directly to one of the hosts identified in these AVPs.
-   The server contained in the selected Redirect-Host AVP SHOULD be used
-   for all messages matching the criteria set by the Redirect-Host-Usage
-   AVP.
-
-6.13.  Redirect-Host-Usage AVP
-
-   The Redirect-Host-Usage AVP (AVP Code 261) is of type Enumerated.
-   This AVP MAY be present in answer messages whose 'E' bit is set and
-   the Result-Code AVP is set to DIAMETER_REDIRECT_INDICATION.
-
-   When present, this AVP provides hints about how the routing entry
-   resulting from the Redirect-Host is to be used.  The following values
-   are supported:
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 85]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   DONT_CACHE 0
-
-      The host specified in the Redirect-Host AVP SHOULD NOT be cached.
-      This is the default value.
-
-   ALL_SESSION 1
-
-      All messages within the same session, as defined by the same value
-      of the Session-ID AVP SHOULD be sent to the host specified in the
-      Redirect-Host AVP.
-
-   ALL_REALM 2
-
-      All messages destined for the realm requested SHOULD be sent to
-      the host specified in the Redirect-Host AVP.
-
-   REALM_AND_APPLICATION 3
-
-      All messages for the application requested to the realm specified
-      SHOULD be sent to the host specified in the Redirect-Host AVP.
-
-   ALL_APPLICATION 4
-
-      All messages for the application requested SHOULD be sent to the
-      host specified in the Redirect-Host AVP.
-
-   ALL_HOST 5
-
-      All messages that would be sent to the host that generated the
-      Redirect-Host SHOULD be sent to the host specified in the
-      Redirect-Host AVP.
-
-   ALL_USER 6
-
-      All messages for the user requested SHOULD be sent to the host
-      specified in the Redirect-Host AVP.
-
-   When multiple cached routes are created by redirect indications and
-   they differ only in redirect usage and peers to forward requests to
-   (see Section 6.1.8), a precedence rule MUST be applied to the
-   redirect usage values of the cached routes during normal routing to
-   resolve contentions that may occur.  The precedence rule is the order
-   that dictate which redirect usage should be considered before any
-   other as they appear.  The order is as follows:
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 86]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   1.  ALL_SESSION
-
-   2.  ALL_USER
-
-   3.  REALM_AND_APPLICATION
-
-   4.  ALL_REALM
-
-   5.  ALL_APPLICATION
-
-   6.  ALL_HOST
-
-6.14.  Redirect-Max-Cache-Time AVP
-
-   The Redirect-Max-Cache-Time AVP (AVP Code 262) is of type Unsigned32.
-   This AVP MUST be present in answer messages whose 'E' bit is set,
-   whose Result-Code AVP is set to DIAMETER_REDIRECT_INDICATION, and
-   whose Redirect-Host-Usage AVP set to a non-zero value.
-
-   This AVP contains the maximum number of seconds the peer and route
-   table entries, created as a result of the Redirect-Host, SHOULD be
-   cached.  Note that once a host is no longer reachable, any associated
-   cache, peer, and routing table entries MUST be deleted.
-
-7.  Error Handling
-
-   There are two different types of errors in Diameter; protocol errors
-   and application errors.  A protocol error is one that occurs at the
-   base protocol level and MAY require per-hop attention (e.g., a
-   message routing error).  Application errors, on the other hand,
-   generally occur due to a problem with a function specified in a
-   Diameter application (e.g., user authentication, missing AVP).
-
-   Result-Code AVP values that are used to report protocol errors MUST
-   only be present in answer messages whose 'E' bit is set.  When a
-   request message is received that causes a protocol error, an answer
-   message is returned with the 'E' bit set, and the Result-Code AVP is
-   set to the appropriate protocol error value.  As the answer is sent
-   back towards the originator of the request, each proxy or relay agent
-   MAY take action on the message.
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 87]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-                          1. Request        +---------+ Link Broken
-                +-------------------------->|Diameter |----///----+
-                |     +---------------------|         |           v
-         +------+--+  | 2. answer + 'E' set | Relay 2 |     +--------+
-         |Diameter |&lt;-+ (Unable to Forward) +---------+     |Diameter|
-         |         |                                        |  Home  |
-         | Relay 1 |--+                     +---------+     | Server |
-         +---------+  |   3. Request        |Diameter |     +--------+
-                      +-------------------->|         |           ^
-                                            | Relay 3 |-----------+
-                                            +---------+
-
-        Figure 7: Example of Protocol Error Causing Answer Message
-
-   Figure 7 provides an example of a message forwarded upstream by a
-   Diameter relay.  When the message is received by Relay 2, and it
-   detects that it cannot forward the request to the home server, an
-   answer message is returned with the 'E' bit set and the Result-Code
-   AVP set to DIAMETER_UNABLE_TO_DELIVER.  Given that this error falls
-   within the protocol error category, Relay 1 would take special
-   action, and given the error, attempt to route the message through its
-   alternate Relay 3.
-
-            +---------+ 1. Request  +---------+ 2. Request  +---------+
-            | Access  |------------>|Diameter |------------>|Diameter |
-            |         |             |         |             |  Home   |
-            | Device  |&lt;------------|  Relay  |&lt;------------| Server  |
-            +---------+  4. Answer  +---------+  3. Answer  +---------+
-                       (Missing AVP)           (Missing AVP)
-
-           Figure 8: Example of Application Error Answer Message
-
-   Figure 8 provides an example of a Diameter message that caused an
-   application error.  When application errors occur, the Diameter
-   entity reporting the error clears the 'R' bit in the Command Flags
-   and adds the Result-Code AVP with the proper value.  Application
-   errors do not require any proxy or relay agent involvement;
-   therefore, the message would be forwarded back to the originator of
-   the request.
-
-   In the case where the answer message itself contains errors, any
-   related session SHOULD be terminated by sending an STR or ASR
-   message.  The Termination-Cause AVP in the STR MAY be filled with the
-   appropriate value to indicate the cause of the error.  An application
-   MAY also send an application-specific request instead of an STR or
-   ASR message to signal the error in the case where no state is
-   maintained or to allow for some form of error recovery with the
-   corresponding Diameter entity.
-
-
-
-Fajardo, et al.              Standards Track                   [Page 88]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   There are certain Result-Code AVP application errors that require
-   additional AVPs to be present in the answer.  In these cases, the
-   Diameter node that sets the Result-Code AVP to indicate the error
-   MUST add the AVPs.  Examples are as follows:
-
-   o  A request with an unrecognized AVP is received with the 'M' bit
-      (Mandatory bit) set causes an answer to be sent with the Result-
-      Code AVP set to DIAMETER_AVP_UNSUPPORTED and the Failed-AVP AVP
-      containing the offending AVP.
-
-   o  A request with an AVP that is received with an unrecognized value
-      causes an answer to be returned with the Result-Code AVP set to
-      DIAMETER_INVALID_AVP_VALUE, with the Failed-AVP AVP containing the
-      AVP causing the error.
-
-   o  A received command that is missing AVPs that are defined as
-      required in the commands CCF; examples are AVPs indicated as
-      {AVP}.  The receiver issues an answer with the Result-Code set to
-      DIAMETER_MISSING_AVP and creates an AVP with the AVP Code and
-      other fields set as expected in the missing AVP.  The created AVP
-      is then added to the Failed-AVP AVP.
-
-   The Result-Code AVP describes the error that the Diameter node
-   encountered in its processing.  In case there are multiple errors,
-   the Diameter node MUST report only the first error it encountered
-   (detected possibly in some implementation-dependent order).  The
-   specific errors that can be described by this AVP are described in
-   the following section.
-
-7.1.  Result-Code AVP
-
-   The Result-Code AVP (AVP Code 268) is of type Unsigned32 and
-   indicates whether a particular request was completed successfully or
-   an error occurred.  All Diameter answer messages in IETF-defined
-   Diameter application specifications MUST include one Result-Code AVP.
-   A non-successful Result-Code AVP (one containing a non-2xxx value
-   other than DIAMETER_REDIRECT_INDICATION) MUST include the Error-
-   Reporting-Host AVP if the host setting the Result-Code AVP is
-   different from the identity encoded in the Origin-Host AVP.
-
-   The Result-Code data field contains an IANA-managed 32-bit address
-   space representing errors (see Section 11.3.2).  Diameter provides
-   the following classes of errors, all identified by the thousands
-   digit in the decimal notation:
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 89]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   o  1xxx (Informational)
-
-   o  2xxx (Success)
-
-   o  3xxx (Protocol Errors)
-
-   o  4xxx (Transient Failures)
-
-   o  5xxx (Permanent Failure)
-
-   An unrecognized class (one whose first digit is not defined in this
-   section) MUST be handled as a permanent failure.
-
-7.1.1.  Informational
-
-   Errors that fall within this category are used to inform the
-   requester that a request could not be satisfied, and additional
-   action is required on its part before access is granted.
-
-   DIAMETER_MULTI_ROUND_AUTH 1001
-
-      This informational error is returned by a Diameter server to
-      inform the access device that the authentication mechanism being
-      used requires multiple round trips, and a subsequent request needs
-      to be issued in order for access to be granted.
-
-7.1.2.  Success
-
-   Errors that fall within the Success category are used to inform a
-   peer that a request has been successfully completed.
-
-   DIAMETER_SUCCESS 2001
-
-      The request was successfully completed.
-
-   DIAMETER_LIMITED_SUCCESS 2002
-
-      When returned, the request was successfully completed, but
-      additional processing is required by the application in order to
-      provide service to the user.
-
-7.1.3.  Protocol Errors
-
-   Errors that fall within the Protocol Error category SHOULD be treated
-   on a per-hop basis, and Diameter proxies MAY attempt to correct the
-   error, if it is possible.  Note that these errors MUST only be used
-   in answer messages whose 'E' bit is set.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 90]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   DIAMETER_COMMAND_UNSUPPORTED 3001
-
-      This error code is used when a Diameter entity receives a message
-      with a Command Code that it does not support.
-
-   DIAMETER_UNABLE_TO_DELIVER 3002
-
-      This error is given when Diameter cannot deliver the message to
-      the destination, either because no host within the realm
-      supporting the required application was available to process the
-      request or because the Destination-Host AVP was given without the
-      associated Destination-Realm AVP.
-
-   DIAMETER_REALM_NOT_SERVED 3003
-
-      The intended realm of the request is not recognized.
-
-   DIAMETER_TOO_BUSY 3004
-
-      When returned, a Diameter node SHOULD attempt to send the message
-      to an alternate peer.  This error MUST only be used when a
-      specific server is requested, and it cannot provide the requested
-      service.
-
-   DIAMETER_LOOP_DETECTED 3005
-
-      An agent detected a loop while trying to get the message to the
-      intended recipient.  The message MAY be sent to an alternate peer,
-      if one is available, but the peer reporting the error has
-      identified a configuration problem.
-
-   DIAMETER_REDIRECT_INDICATION 3006
-
-      A redirect agent has determined that the request could not be
-      satisfied locally, and the initiator of the request SHOULD direct
-      the request directly to the server, whose contact information has
-      been added to the response.  When set, the Redirect-Host AVP MUST
-      be present.
-
-   DIAMETER_APPLICATION_UNSUPPORTED 3007
-
-      A request was sent for an application that is not supported.
-
-   DIAMETER_INVALID_HDR_BITS 3008
-
-      A request was received whose bits in the Diameter header were set
-      either to an invalid combination or to a value that is
-      inconsistent with the Command Code's definition.
-
-
-
-Fajardo, et al.              Standards Track                   [Page 91]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   DIAMETER_INVALID_AVP_BITS 3009
-
-      A request was received that included an AVP whose flag bits are
-      set to an unrecognized value or that is inconsistent with the
-      AVP's definition.
-
-   DIAMETER_UNKNOWN_PEER 3010
-
-      A CER was received from an unknown peer.
-
-7.1.4.  Transient Failures
-
-   Errors that fall within the transient failures category are used to
-   inform a peer that the request could not be satisfied at the time it
-   was received but MAY be able to satisfy the request in the future.
-   Note that these errors MUST be used in answer messages whose 'E' bit
-   is not set.
-
-   DIAMETER_AUTHENTICATION_REJECTED 4001
-
-      The authentication process for the user failed, most likely due to
-      an invalid password used by the user.  Further attempts MUST only
-      be tried after prompting the user for a new password.
-
-   DIAMETER_OUT_OF_SPACE 4002
-
-      A Diameter node received the accounting request but was unable to
-      commit it to stable storage due to a temporary lack of space.
-
-   ELECTION_LOST 4003
-
-      The peer has determined that it has lost the election process and
-      has therefore disconnected the transport connection.
-
-7.1.5.  Permanent Failures
-
-   Errors that fall within the permanent failures category are used to
-   inform the peer that the request failed and should not be attempted
-   again.  Note that these errors SHOULD be used in answer messages
-   whose 'E' bit is not set.  In error conditions where it is not
-   possible or efficient to compose application-specific answer grammar,
-   answer messages with the 'E' bit set and which comply to the grammar
-   described in Section 7.2 MAY also be used for permanent errors.
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 92]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   DIAMETER_AVP_UNSUPPORTED 5001
-
-      The peer received a message that contained an AVP that is not
-      recognized or supported and was marked with the 'M' (Mandatory)
-      bit.  A Diameter message with this error MUST contain one or more
-      Failed-AVP AVPs containing the AVPs that caused the failure.
-
-   DIAMETER_UNKNOWN_SESSION_ID 5002
-
-      The request contained an unknown Session-Id.
-
-   DIAMETER_AUTHORIZATION_REJECTED 5003
-
-      A request was received for which the user could not be authorized.
-      This error could occur if the service requested is not permitted
-      to the user.
-
-   DIAMETER_INVALID_AVP_VALUE 5004
-
-      The request contained an AVP with an invalid value in its data
-      portion.  A Diameter message indicating this error MUST include
-      the offending AVPs within a Failed-AVP AVP.
-
-   DIAMETER_MISSING_AVP 5005
-
-      The request did not contain an AVP that is required by the Command
-      Code definition.  If this value is sent in the Result-Code AVP, a
-      Failed-AVP AVP SHOULD be included in the message.  The Failed-AVP
-      AVP MUST contain an example of the missing AVP complete with the
-      Vendor-Id if applicable.  The value field of the missing AVP
-      should be of correct minimum length and contain zeroes.
-
-   DIAMETER_RESOURCES_EXCEEDED 5006
-
-      A request was received that cannot be authorized because the user
-      has already expended allowed resources.  An example of this error
-      condition is when a user that is restricted to one dial-up PPP
-      port attempts to establish a second PPP connection.
-
-   DIAMETER_CONTRADICTING_AVPS 5007
-
-      The Home Diameter server has detected AVPs in the request that
-      contradicted each other, and it is not willing to provide service
-      to the user.  The Failed-AVP AVP MUST be present, which contain
-      the AVPs that contradicted each other.
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 93]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   DIAMETER_AVP_NOT_ALLOWED 5008
-
-      A message was received with an AVP that MUST NOT be present.  The
-      Failed-AVP AVP MUST be included and contain a copy of the
-      offending AVP.
-
-   DIAMETER_AVP_OCCURS_TOO_MANY_TIMES 5009
-
-      A message was received that included an AVP that appeared more
-      often than permitted in the message definition.  The Failed-AVP
-      AVP MUST be included and contain a copy of the first instance of
-      the offending AVP that exceeded the maximum number of occurrences.
-
-   DIAMETER_NO_COMMON_APPLICATION 5010
-
-      This error is returned by a Diameter node that receives a CER
-      whereby no applications are common between the CER sending peer
-      and the CER receiving peer.
-
-   DIAMETER_UNSUPPORTED_VERSION 5011
-
-      This error is returned when a request was received, whose version
-      number is unsupported.
-
-   DIAMETER_UNABLE_TO_COMPLY 5012
-
-      This error is returned when a request is rejected for unspecified
-      reasons.
-
-   DIAMETER_INVALID_BIT_IN_HEADER 5013
-
-      This error is returned when a reserved bit in the Diameter header
-      is set to one (1) or the bits in the Diameter header are set
-      incorrectly.
-
-   DIAMETER_INVALID_AVP_LENGTH 5014
-
-      The request contained an AVP with an invalid length.  A Diameter
-      message indicating this error MUST include the offending AVPs
-      within a Failed-AVP AVP.  In cases where the erroneous AVP length
-      value exceeds the message length or is less than the minimum AVP
-      header length, it is sufficient to include the offending AVP
-      header and a zero filled payload of the minimum required length
-      for the payloads data type.  If the AVP is a Grouped AVP, the
-      Grouped AVP header with an empty payload would be sufficient to
-      indicate the offending AVP.  In the case where the offending AVP
-      header cannot be fully decoded when the AVP length is less than
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 94]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      the minimum AVP header length, it is sufficient to include an
-      offending AVP header that is formulated by padding the incomplete
-      AVP header with zero up to the minimum AVP header length.
-
-   DIAMETER_INVALID_MESSAGE_LENGTH 5015
-
-      This error is returned when a request is received with an invalid
-      message length.
-
-   DIAMETER_INVALID_AVP_BIT_COMBO 5016
-
-      The request contained an AVP with which is not allowed to have the
-      given value in the AVP Flags field.  A Diameter message indicating
-      this error MUST include the offending AVPs within a Failed-AVP
-      AVP.
-
-   DIAMETER_NO_COMMON_SECURITY 5017
-
-      This error is returned when a CER message is received, and there
-      are no common security mechanisms supported between the peers.  A
-      Capabilities-Exchange-Answer (CEA) message MUST be returned with
-      the Result-Code AVP set to DIAMETER_NO_COMMON_SECURITY.
-
-7.2.  Error Bit
-
-   The 'E' (Error Bit) in the Diameter header is set when the request
-   caused a protocol-related error (see Section 7.1.3).  A message with
-   the 'E' bit MUST NOT be sent as a response to an answer message.
-   Note that a message with the 'E' bit set is still subjected to the
-   processing rules defined in Section 6.2.  When set, the answer
-   message will not conform to the CCF specification for the command;
-   instead, it and will conform to the following CCF:
-
-      Message Format
-
-      &lt;answer-message> ::= &lt; Diameter Header: code, ERR [, PXY] >
-                        0*1&lt; Session-Id >
-                           { Origin-Host }
-                           { Origin-Realm }
-                           { Result-Code }
-                           [ Origin-State-Id ]
-                           [ Error-Message ]
-                           [ Error-Reporting-Host ]
-                           [ Failed-AVP ]
-                           [ Experimental-Result ]
-                         * [ Proxy-Info ]
-                         * [ AVP ]
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 95]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Note that the code used in the header is the same than the one found
-   in the request message, but with the 'R' bit cleared and the 'E' bit
-   set.  The 'P' bit in the header is set to the same value as the one
-   found in the request message.
-
-7.3.  Error-Message AVP
-
-   The Error-Message AVP (AVP Code 281) is of type UTF8String.  It MAY
-   accompany a Result-Code AVP as a human-readable error message.  The
-   Error-Message AVP is not intended to be useful in an environment
-   where error messages are processed automatically.  It SHOULD NOT be
-   expected that the content of this AVP be parsed by network entities.
-
-7.4.  Error-Reporting-Host AVP
-
-   The Error-Reporting-Host AVP (AVP Code 294) is of type
-   DiameterIdentity.  This AVP contains the identity of the Diameter
-   host that sent the Result-Code AVP to a value other than 2001
-   (Success), only if the host setting the Result-Code is different from
-   the one encoded in the Origin-Host AVP.  This AVP is intended to be
-   used for troubleshooting purposes, and it MUST be set when the
-   Result-Code AVP indicates a failure.
-
-7.5.  Failed-AVP AVP
-
-   The Failed-AVP AVP (AVP Code 279) is of type Grouped and provides
-   debugging information in cases where a request is rejected or not
-   fully processed due to erroneous information in a specific AVP.  The
-   value of the Result-Code AVP will provide information on the reason
-   for the Failed-AVP AVP.  A Diameter answer message SHOULD contain an
-   instance of the Failed-AVP AVP that corresponds to the error
-   indicated by the Result-Code AVP.  For practical purposes, this
-   Failed-AVP would typically refer to the first AVP processing error
-   that a Diameter node encounters.
-
-   The possible reasons for this AVP are the presence of an improperly
-   constructed AVP, an unsupported or unrecognized AVP, an invalid AVP
-   value, the omission of a required AVP, the presence of an explicitly
-   excluded AVP (see tables in Section 10) or the presence of two or
-   more occurrences of an AVP that is restricted to 0, 1, or 0-1
-   occurrences.
-
-   A Diameter message SHOULD contain one Failed-AVP AVP, containing the
-   entire AVP that could not be processed successfully.  If the failure
-   reason is omission of a required AVP, an AVP with the missing AVP
-   code, the missing Vendor-Id, and a zero-filled payload of the minimum
-   required length for the omitted AVP will be added.  If the failure
-   reason is an invalid AVP length where the reported length is less
-
-
-
-Fajardo, et al.              Standards Track                   [Page 96]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   than the minimum AVP header length or greater than the reported
-   message length, a copy of the offending AVP header and a zero-filled
-   payload of the minimum required length SHOULD be added.
-
-   In the case where the offending AVP is embedded within a Grouped AVP,
-   the Failed-AVP MAY contain the grouped AVP, which in turn contains
-   the single offending AVP.  The same method MAY be employed if the
-   grouped AVP itself is embedded in yet another grouped AVP and so on.
-   In this case, the Failed-AVP MAY contain the grouped AVP hierarchy up
-   to the single offending AVP.  This enables the recipient to detect
-   the location of the offending AVP when embedded in a group.
-
-   AVP Format
-
-         &lt;Failed-AVP> ::= &lt; AVP Header: 279 >
-                       1* {AVP}
-
-7.6.  Experimental-Result AVP
-
-   The Experimental-Result AVP (AVP Code 297) is of type Grouped, and
-   indicates whether a particular vendor-specific request was completed
-   successfully or whether an error occurred.  This AVP has the
-   following structure:
-
-   AVP Format
-
-         Experimental-Result ::= &lt; AVP Header: 297 >
-                                 { Vendor-Id }
-                                 { Experimental-Result-Code }
-
-   The Vendor-Id AVP (see Section 5.3.3) in this grouped AVP identifies
-   the vendor responsible for the assignment of the result code that
-   follows.  All Diameter answer messages defined in vendor-specific
-   applications MUST include either one Result-Code AVP or one
-   Experimental-Result AVP.
-
-7.7.  Experimental-Result-Code AVP
-
-   The Experimental-Result-Code AVP (AVP Code 298) is of type Unsigned32
-   and contains a vendor-assigned value representing the result of
-   processing the request.
-
-   It is recommended that vendor-specific result codes follow the same
-   conventions given for the Result-Code AVP regarding the different
-   types of result codes and the handling of errors (for non-2xxx
-   values).
-
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 97]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-8.  Diameter User Sessions
-
-   In general, Diameter can provide two different types of services to
-   applications.  The first involves authentication and authorization,
-   and it can optionally make use of accounting.  The second only makes
-   use of accounting.
-
-   When a service makes use of the authentication and/or authorization
-   portion of an application, and a user requests access to the network,
-   the Diameter client issues an auth request to its local server.  The
-   auth request is defined in a service-specific Diameter application
-   (e.g., NASREQ).  The request contains a Session-Id AVP, which is used
-   in subsequent messages (e.g., subsequent authorization, accounting,
-   etc.) relating to the user's session.  The Session-Id AVP is a means
-   for the client and servers to correlate a Diameter message with a
-   user session.
-
-   When a Diameter server authorizes a user to implement network
-   resources for a finite amount of time, and it is willing to extend
-   the authorization via a future request, it MUST add the
-   Authorization- Lifetime AVP to the answer message.  The
-   Authorization-Lifetime AVP defines the maximum number of seconds a
-   user MAY make use of the resources before another authorization
-   request is expected by the server.  The Auth-Grace-Period AVP
-   contains the number of seconds following the expiration of the
-   Authorization-Lifetime, after which the server will release all state
-   information related to the user's session.  Note that if payment for
-   services is expected by the serving realm from the user's home realm,
-   the Authorization-Lifetime AVP, combined with the Auth-Grace-Period
-   AVP, implies the maximum length of the session for which the home
-   realm is willing to be fiscally responsible.  Services provided past
-   the expiration of the Authorization-Lifetime and Auth-Grace-Period
-   AVPs are the responsibility of the access device.  Of course, the
-   actual cost of services rendered is clearly outside the scope of the
-   protocol.
-
-   An access device that does not expect to send a re-authorization or a
-   session termination request to the server MAY include the Auth-
-   Session-State AVP with the value set to NO_STATE_MAINTAINED as a hint
-   to the server.  If the server accepts the hint, it agrees that since
-   no session termination message will be received once service to the
-   user is terminated, it cannot maintain state for the session.  If the
-   answer message from the server contains a different value in the
-   Auth-Session-State AVP (or the default value if the AVP is absent),
-   the access device MUST follow the server's directives.  Note that the
-   value NO_STATE_MAINTAINED MUST NOT be set in subsequent re-
-   authorization requests and answers.
-
-
-
-
-Fajardo, et al.              Standards Track                   [Page 98]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   The base protocol does not include any authorization request
-   messages, since these are largely application-specific and are
-   defined in a Diameter application document.  However, the base
-   protocol does define a set of messages that are used to terminate
-   user sessions.  These are used to allow servers that maintain state
-   information to free resources.
-
-   When a service only makes use of the accounting portion of the
-   Diameter protocol, even in combination with an application, the
-   Session-Id is still used to identify user sessions.  However, the
-   session termination messages are not used, since a session is
-   signaled as being terminated by issuing an accounting stop message.
-
-   Diameter may also be used for services that cannot be easily
-   categorized as authentication, authorization, or accounting (e.g.,
-   certain Third Generation Partnership Project Internet Multimedia
-   System (3GPP IMS) interfaces).  In such cases, the finite state
-   machine defined in subsequent sections may not be applicable.
-   Therefore, the application itself MAY need to define its own finite
-   state machine.  However, such application-specific state machines
-   SHOULD follow the general state machine framework outlined in this
-   document such as the use of Session-Id AVPs and the use of STR/STA,
-   ASR/ASA messages for stateful sessions.
-
-8.1.  Authorization Session State Machine
-
-   This section contains a set of finite state machines, which represent
-   the life cycle of Diameter sessions and which MUST be observed by all
-   Diameter implementations that make use of the authentication and/or
-   authorization portion of a Diameter application.  The term "Service-
-   Specific" below refers to a message defined in a Diameter application
-   (e.g., Mobile IPv4, NASREQ).
-
-   There are four different authorization session state machines
-   supported in the Diameter base protocol.  The first two describe a
-   session in which the server is maintaining session state, indicated
-   by the value of the Auth-Session-State AVP (or its absence).  One
-   describes the session from a client perspective, the other from a
-   server perspective.  The second two state machines are used when the
-   server does not maintain session state.  Here again, one describes
-   the session from a client perspective, the other from a server
-   perspective.
-
-   When a session is moved to the Idle state, any resources that were
-   allocated for the particular session must be released.  Any event not
-   listed in the state machines MUST be considered an error condition,
-   and an answer, if applicable, MUST be returned to the originator of
-   the message.
-
-
-
-Fajardo, et al.              Standards Track                   [Page 99]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   In the case that an application does not support re-auth, the state
-   transitions related to server-initiated re-auth, when both client and
-   server sessions maintain state (e.g., Send RAR, Pending, Receive
-   RAA), MAY be ignored.
-
-   In the state table, the event "Failure to send X" means that the
-   Diameter agent is unable to send command X to the desired
-   destination.  This could be due to the peer being down or due to the
-   peer sending back a transient failure or temporary protocol error
-   notification DIAMETER_TOO_BUSY or DIAMETER_LOOP_DETECTED in the
-   Result-Code AVP of the corresponding Answer command.  The event 'X
-   successfully sent' is the complement of 'Failure to send X'.
-
-   The following state machine is observed by a client when state is
-   maintained on the server:
-
-                              CLIENT, STATEFUL
-      State     Event                          Action       New State
-      ---------------------------------------------------------------
-      Idle      Client or device requests      Send         Pending
-                access                         service-
-                                               specific
-                                               auth req
-
-      Idle      ASR Received                   Send ASA     Idle
-                for unknown session            with
-                                               Result-Code =
-                                               UNKNOWN_
-                                               SESSION_ID
-
-      Idle      RAR Received                   Send RAA     Idle
-                for unknown session            with
-                                               Result-Code =
-                                               UNKNOWN_
-                                               SESSION_ID
-
-      Pending   Successful service-specific    Grant        Open
-                authorization answer           Access
-                received with default
-                Auth-Session-State value
-
-      Pending   Successful service-specific    Sent STR     Discon
-                authorization answer received,
-                but service not provided
-
-      Pending   Error processing successful    Sent STR     Discon
-                service-specific authorization
-                answer
-
-
-
-Fajardo, et al.              Standards Track                  [Page 100]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      Pending   Failed service-specific        Clean up     Idle
-                authorization answer received
-
-      Open      User or client device          Send         Open
-                requests access to service     service-
-                                               specific
-                                               auth req
-
-      Open      Successful service-specific    Provide      Open
-                authorization answer received  service
-
-      Open      Failed service-specific        Discon.      Idle
-                authorization answer           user/device
-                received.
-
-      Open      RAR received and client will   Send RAA     Open
-                perform subsequent re-auth     with
-                                               Result-Code =
-                                               SUCCESS
-
-      Open      RAR received and client will   Send RAA     Idle
-                not perform subsequent         with
-                re-auth                        Result-Code !=
-                                               SUCCESS,
-                                               Discon.
-                                               user/device
-
-      Open      Session-Timeout expires on     Send STR     Discon
-                access device
-
-      Open      ASR received,                  Send ASA     Discon
-                client will comply             with
-                with request to end the        Result-Code =
-                session                        = SUCCESS,
-                                               Send STR.
-
-      Open      ASR Received,                  Send ASA     Open
-                client will not comply         with
-                with request to end the        Result-Code !=
-                session                        != SUCCESS
-
-      Open      Authorization-Lifetime +       Send STR     Discon
-                Auth-Grace-Period expires on
-                access device
-
-      Discon    ASR received                   Send ASA     Discon
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 101]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      Discon    STA received                   Discon.      Idle
-                                               user/device
-
-   The following state machine is observed by a server when it is
-   maintaining state for the session:
-
-                             SERVER, STATEFUL
-      State     Event                          Action       New State
-      ---------------------------------------------------------------
-      Idle      Service-specific authorization Send         Open
-                request received, and          successful
-                user is authorized             service-
-                                               specific
-                                               answer
-
-      Idle      Service-specific authorization Send         Idle
-                request received, and          failed
-                user is not authorized         service-
-                                               specific
-                                               answer
-
-      Open      Service-specific authorization Send         Open
-                request received, and user     successful
-                is authorized                  service-
-                                               specific
-                                               answer
-
-      Open      Service-specific authorization Send         Idle
-                request received, and user     failed
-                is not authorized              service-
-                                               specific
-                                               answer,
-                                               Clean up
-
-      Open      Home server wants to confirm   Send RAR     Pending
-                authentication and/or
-                authorization of the user
-
-      Pending   Received RAA with a failed     Clean up     Idle
-                Result-Code
-
-      Pending   Received RAA with Result-Code  Update       Open
-                = SUCCESS                      session
-
-      Open      Home server wants to           Send ASR     Discon
-                terminate the service
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 102]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      Open      Authorization-Lifetime (and    Clean up     Idle
-                Auth-Grace-Period) expires
-                on home server
-
-      Open      Session-Timeout expires on     Clean up     Idle
-                home server
-
-      Discon    Failure to send ASR            Wait,        Discon
-                                               resend ASR
-
-      Discon    ASR successfully sent and      Clean up     Idle
-                ASA Received with Result-Code
-
-      Not       ASA Received                   None         No Change
-      Discon
-
-      Any       STR Received                   Send STA,    Idle
-                                               Clean up
-
-   The following state machine is observed by a client when state is not
-   maintained on the server:
-
-                              CLIENT, STATELESS
-      State     Event                          Action       New State
-      ---------------------------------------------------------------
-      Idle      Client or device requests      Send         Pending
-                access                         service-
-                                               specific
-                                               auth req
-
-      Pending   Successful service-specific    Grant        Open
-                authorization answer           access
-                received with Auth-Session-
-                State set to
-                NO_STATE_MAINTAINED
-
-      Pending   Failed service-specific        Clean up     Idle
-                authorization answer
-                received
-
-      Open      Session-Timeout expires on     Discon.      Idle
-                access device                  user/device
-
-      Open      Service to user is terminated  Discon.      Idle
-                                               user/device
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 103]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   The following state machine is observed by a server when it is not
-   maintaining state for the session:
-
-                              SERVER, STATELESS
-      State     Event                          Action       New State
-      ---------------------------------------------------------------
-      Idle      Service-specific authorization Send         Idle
-                request received, and          service-
-                successfully processed         specific
-                                               answer
-
-8.2.  Accounting Session State Machine
-
-   The following state machines MUST be supported for applications that
-   have an accounting portion or that require only accounting services.
-   The first state machine is to be observed by clients.
-
-   See Section 9.7 for Accounting Command Codes and Section 9.8 for
-   Accounting AVPs.
-
-   The server side in the accounting state machine depends in some cases
-   on the particular application.  The Diameter base protocol defines a
-   default state machine that MUST be followed by all applications that
-   have not specified other state machines.  This is the second state
-   machine in this section described below.
-
-   The default server side state machine requires the reception of
-   accounting records in any order and at any time, and it does not
-   place any standards requirement on the processing of these records.
-   Implementations of Diameter may perform checking, ordering,
-   correlation, fraud detection, and other tasks based on these records.
-   AVPs may need to be inspected as a part of these tasks.  The tasks
-   can happen either immediately after record reception or in a post-
-   processing phase.  However, as these tasks are typically application
-   or even policy dependent, they are not standardized by the Diameter
-   specifications.  Applications MAY define requirements on when to
-   accept accounting records based on the used value of Accounting-
-   Realtime-Required AVP, credit-limit checks, and so on.
-
-   However, the Diameter base protocol defines one optional server side
-   state machine that MAY be followed by applications that require
-   keeping track of the session state at the accounting server.  Note
-   that such tracking is incompatible with the ability to sustain long
-   duration connectivity problems.  Therefore, the use of this state
-   machine is recommended only in applications where the value of the
-   Accounting-Realtime-Required AVP is DELIVER_AND_GRANT; hence,
-   accounting connectivity problems are required to cause the serviced
-   user to be disconnected.  Otherwise, records produced by the client
-
-
-
-Fajardo, et al.              Standards Track                  [Page 104]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   may be lost by the server, which no longer accepts them after the
-   connectivity is re-established.  This state machine is the third
-   state machine in this section.  The state machine is supervised by a
-   supervision session timer Ts, whose value should be reasonably higher
-   than the Acct_Interim_Interval value.  Ts MAY be set to two times the
-   value of the Acct_Interim_Interval so as to avoid the accounting
-   session in the Diameter server to change to Idle state in case of
-   short transient network failure.
-
-   Any event not listed in the state machines MUST be considered as an
-   error condition, and a corresponding answer, if applicable, MUST be
-   returned to the originator of the message.
-
-   In the state table, the event "Failure to send" means that the
-   Diameter client is unable to communicate with the desired
-   destination.  This could be due to the peer being down, or due to the
-   peer sending back a transient failure or temporary protocol error
-   notification DIAMETER_OUT_OF_SPACE, DIAMETER_TOO_BUSY, or
-   DIAMETER_LOOP_DETECTED in the Result-Code AVP of the Accounting
-   Answer command.
-
-   The event "Failed answer" means that the Diameter client received a
-   non-transient failure notification in the Accounting Answer command.
-
-   Note that the action "Disconnect user/dev" MUST also have an effect
-   on the authorization session state table, e.g., cause the STR message
-   to be sent, if the given application has both authentication/
-   authorization and accounting portions.
-
-   The states PendingS, PendingI, PendingL, PendingE, and PendingB stand
-   for pending states to wait for an answer to an accounting request
-   related to a Start, Interim, Stop, Event, or buffered record,
-   respectively.
-
-                            CLIENT, ACCOUNTING
-      State     Event                          Action       New State
-      ---------------------------------------------------------------
-      Idle      Client or device requests      Send         PendingS
-                access                         accounting
-                                               start req.
-
-      Idle      Client or device requests      Send         PendingE
-                a one-time service             accounting
-                                               event req
-
-      Idle      Records in storage             Send         PendingB
-                                               record
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 105]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      PendingS  Successful accounting                       Open
-                start answer received
-
-      PendingS  Failure to send and buffer     Store        Open
-                space available and real time  Start
-                not equal to DELIVER_AND_GRANT Record
-
-      PendingS  Failure to send and no buffer               Open
-                space available and real time
-                equal to GRANT_AND_LOSE
-
-      PendingS  Failure to send and no         Disconnect   Idle
-                buffer space available and     user/dev
-                real time not equal to
-                GRANT_AND_LOSE
-
-      PendingS  Failed accounting start answer              Open
-                received and real time equal
-                to GRANT_AND_LOSE
-
-      PendingS  Failed accounting start answer Disconnect   Idle
-                received and real time not     user/dev
-                equal to GRANT_AND_LOSE
-
-      PendingS  User service terminated        Store        PendingS
-                                               stop
-                                               record
-
-      Open      Interim interval elapses       Send         PendingI
-                                               accounting
-                                               interim
-                                               record
-
-      Open      User service terminated        Send         PendingL
-                                               accounting
-                                               stop req.
-
-      PendingI  Successful accounting interim               Open
-                answer received
-
-      PendingI  Failure to send and (buffer    Store        Open
-                space available or old         interim
-                record can be overwritten)     record
-                and real time not equal to
-                DELIVER_AND_GRANT
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 106]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      PendingI  Failure to send and no buffer               Open
-                space available and real time
-                equal to GRANT_AND_LOSE
-
-      PendingI  Failure to send and no         Disconnect   Idle
-                buffer space available and     user/dev
-                real time not equal to
-                GRANT_AND_LOSE
-
-      PendingI  Failed accounting interim                   Open
-                answer received and real time
-                equal to GRANT_AND_LOSE
-
-      PendingI  Failed accounting interim      Disconnect   Idle
-                answer received and            user/dev
-                real time not equal to
-                GRANT_AND_LOSE
-
-      PendingI  User service terminated        Store        PendingI
-                                               stop
-                                               record
-      PendingE  Successful accounting                       Idle
-                event answer received
-
-      PendingE  Failure to send and buffer     Store        Idle
-                space available                event
-                                               record
-
-      PendingE  Failure to send and no buffer               Idle
-                space available
-
-      PendingE  Failed accounting event answer              Idle
-                received
-
-      PendingB  Successful accounting answer   Delete       Idle
-                received                       record
-
-      PendingB  Failure to send                             Idle
-
-      PendingB  Failed accounting answer       Delete       Idle
-                received                       record
-
-      PendingL  Successful accounting                       Idle
-                stop answer received
-
-      PendingL  Failure to send and buffer     Store        Idle
-                space available                stop
-                                               record
-
-
-
-Fajardo, et al.              Standards Track                  [Page 107]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      PendingL  Failure to send and no buffer               Idle
-                space available
-
-      PendingL  Failed accounting stop answer               Idle
-                received
-
-
-                       SERVER, STATELESS ACCOUNTING
-      State     Event                          Action       New State
-      ---------------------------------------------------------------
-
-      Idle      Accounting start request       Send         Idle
-                received and successfully      accounting
-                processed.                     start
-                                               answer
-
-      Idle      Accounting event request       Send         Idle
-                received and successfully      accounting
-                processed.                     event
-                                               answer
-
-      Idle      Interim record received        Send         Idle
-                and successfully processed.    accounting
-                                               interim
-                                               answer
-
-      Idle      Accounting stop request        Send         Idle
-                received and successfully      accounting
-                processed                      stop answer
-
-      Idle      Accounting request received;   Send         Idle
-                no space left to store         accounting
-                records                        answer;
-                                               Result-Code =
-                                               OUT_OF_
-                                               SPACE
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 108]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-                            SERVER, STATEFUL ACCOUNTING
-      State     Event                          Action       New State
-      ---------------------------------------------------------------
-
-      Idle      Accounting start request       Send         Open
-                received and successfully      accounting
-                processed.                     start
-                                               answer;
-                                               Start Ts
-
-      Idle      Accounting event request       Send         Idle
-                received and successfully      accounting
-                processed.                     event
-                                               answer
-      Idle      Accounting request received;   Send         Idle
-                no space left to store         accounting
-                records                        answer;
-                                               Result-Code =
-                                               OUT_OF_
-                                               SPACE
-
-      Open      Interim record received        Send         Open
-                and successfully processed.    accounting
-                                               interim
-                                               answer;
-                                               Restart Ts
-
-      Open      Accounting stop request        Send         Idle
-                received and successfully      accounting
-                processed                      stop answer;
-                                               Stop Ts
-
-      Open      Accounting request received;   Send         Idle
-                no space left to store         accounting
-                records                        answer;
-                                               Result-Code =
-                                               OUT_OF_
-                                               SPACE;
-                                               Stop Ts
-
-      Open      Session supervision timer Ts   Stop Ts      Idle
-                expired
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 109]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-8.3.  Server-Initiated Re-Auth
-
-   A Diameter server may initiate a re-authentication and/or re-
-   authorization service for a particular session by issuing a Re-Auth-
-   Request (RAR).
-
-   For example, for prepaid services, the Diameter server that
-   originally authorized a session may need some confirmation that the
-   user is still using the services.
-
-   An access device that receives an RAR message with the Session-Id
-   equal to a currently active session MUST initiate a re-auth towards
-   the user, if the service supports this particular feature.  Each
-   Diameter application MUST state whether server-initiated re-auth is
-   supported, since some applications do not allow access devices to
-   prompt the user for re-auth.
-
-8.3.1.  Re-Auth-Request
-
-   The Re-Auth-Request (RAR), indicated by the Command Code set to 258
-   and the message flags' 'R' bit set, may be sent by any server to the
-   access device that is providing session service, to request that the
-   user be re-authenticated and/or re-authorized.
-
-
-    Message Format
-
-         &lt;RAR>  ::= &lt; Diameter Header: 258, REQ, PXY >
-                    &lt; Session-Id >
-                    { Origin-Host }
-                    { Origin-Realm }
-                    { Destination-Realm }
-                    { Destination-Host }
-                    { Auth-Application-Id }
-                    { Re-Auth-Request-Type }
-                    [ User-Name ]
-                    [ Origin-State-Id ]
-                  * [ Proxy-Info ]
-                  * [ Route-Record ]
-                  * [ AVP ]
-
-8.3.2.  Re-Auth-Answer
-
-   The Re-Auth-Answer (RAA), indicated by the Command Code set to 258
-   and the message flags' 'R' bit clear, is sent in response to the RAR.
-   The Result-Code AVP MUST be present, and it indicates the disposition
-   of the request.
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 110]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   A successful RAA message MUST be followed by an application-specific
-   authentication and/or authorization message.
-
-    Message Format
-
-         &lt;RAA>  ::= &lt; Diameter Header: 258, PXY >
-                    &lt; Session-Id >
-                    { Result-Code }
-                    { Origin-Host }
-                    { Origin-Realm }
-                    [ User-Name ]
-                    [ Origin-State-Id ]
-                    [ Error-Message ]
-                    [ Error-Reporting-Host ]
-                    [ Failed-AVP ]
-                  * [ Redirect-Host ]
-                    [ Redirect-Host-Usage ]
-                    [ Redirect-Max-Cache-Time ]
-                  * [ Proxy-Info ]
-                  * [ AVP ]
-
-8.4.  Session Termination
-
-   It is necessary for a Diameter server that authorized a session, for
-   which it is maintaining state, to be notified when that session is no
-   longer active, both for tracking purposes as well as to allow
-   stateful agents to release any resources that they may have provided
-   for the user's session.  For sessions whose state is not being
-   maintained, this section is not used.
-
-   When a user session that required Diameter authorization terminates,
-   the access device that provided the service MUST issue a Session-
-   Termination-Request (STR) message to the Diameter server that
-   authorized the service, to notify it that the session is no longer
-   active.  An STR MUST be issued when a user session terminates for any
-   reason, including user logoff, expiration of Session-Timeout,
-   administrative action, termination upon receipt of an Abort-Session-
-   Request (see below), orderly shutdown of the access device, etc.
-
-   The access device also MUST issue an STR for a session that was
-   authorized but never actually started.  This could occur, for
-   example, due to a sudden resource shortage in the access device, or
-   because the access device is unwilling to provide the type of service
-   requested in the authorization, or because the access device does not
-   support a mandatory AVP returned in the authorization, etc.
-
-   It is also possible that a session that was authorized is never
-   actually started due to action of a proxy.  For example, a proxy may
-
-
-
-Fajardo, et al.              Standards Track                  [Page 111]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   modify an authorization answer, converting the result from success to
-   failure, prior to forwarding the message to the access device.  If
-   the answer did not contain an Auth-Session-State AVP with the value
-   NO_STATE_MAINTAINED, a proxy that causes an authorized session not to
-   be started MUST issue an STR to the Diameter server that authorized
-   the session, since the access device has no way of knowing that the
-   session had been authorized.
-
-   A Diameter server that receives an STR message MUST clean up
-   resources (e.g., session state) associated with the Session-Id
-   specified in the STR and return a Session-Termination-Answer.
-
-   A Diameter server also MUST clean up resources when the Session-
-   Timeout expires, or when the Authorization-Lifetime and the Auth-
-   Grace-Period AVPs expire without receipt of a re-authorization
-   request, regardless of whether an STR for that session is received.
-   The access device is not expected to provide service beyond the
-   expiration of these timers; thus, expiration of either of these
-   timers implies that the access device may have unexpectedly shut
-   down.
-
-8.4.1.  Session-Termination-Request
-
-   The Session-Termination-Request (STR), indicated by the Command Code
-   set to 275 and the Command Flags' 'R' bit set, is sent by a Diameter
-   client or by a Diameter proxy to inform the Diameter server that an
-   authenticated and/or authorized session is being terminated.
-
-    Message Format
-
-        &lt;STR>  ::= &lt; Diameter Header: 275, REQ, PXY >
-                   &lt; Session-Id >
-                   { Origin-Host }
-                   { Origin-Realm }
-                   { Destination-Realm }
-                   { Auth-Application-Id }
-                   { Termination-Cause }
-                   [ User-Name ]
-                   [ Destination-Host ]
-                 * [ Class ]
-                   [ Origin-State-Id ]
-                 * [ Proxy-Info ]
-                 * [ Route-Record ]
-                 * [ AVP ]
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 112]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-8.4.2.  Session-Termination-Answer
-
-   The Session-Termination-Answer (STA), indicated by the Command Code
-   set to 275 and the message flags' 'R' bit clear, is sent by the
-   Diameter server to acknowledge the notification that the session has
-   been terminated.  The Result-Code AVP MUST be present, and it MAY
-   contain an indication that an error occurred while servicing the STR.
-
-   Upon sending or receipt of the STA, the Diameter server MUST release
-   all resources for the session indicated by the Session-Id AVP.  Any
-   intermediate server in the Proxy-Chain MAY also release any
-   resources, if necessary.
-
-    Message Format
-
-         &lt;STA> ::= &lt; Diameter Header: 275, PXY >
-                    &lt; Session-Id >
-                    { Result-Code }
-                    { Origin-Host }
-                    { Origin-Realm }
-                    [ User-Name ]
-                  * [ Class ]
-                    [ Error-Message ]
-                    [ Error-Reporting-Host ]
-                    [ Failed-AVP ]
-                    [ Origin-State-Id ]
-                  * [ Redirect-Host ]
-                    [ Redirect-Host-Usage ]
-                    [ Redirect-Max-Cache-Time ]
-                  * [ Proxy-Info ]
-                  * [ AVP ]
-
-8.5.  Aborting a Session
-
-   A Diameter server may request that the access device stop providing
-   service for a particular session by issuing an Abort-Session-Request
-   (ASR).
-
-   For example, the Diameter server that originally authorized the
-   session may be required to cause that session to be stopped for lack
-   of credit or other reasons that were not anticipated when the session
-   was first authorized.
-
-   An access device that receives an ASR with Session-ID equal to a
-   currently active session MAY stop the session.  Whether the access
-   device stops the session or not is implementation and/or
-   configuration dependent.  For example, an access device may honor
-   ASRs from certain agents only.  In any case, the access device MUST
-
-
-
-Fajardo, et al.              Standards Track                  [Page 113]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   respond with an Abort-Session-Answer, including a Result-Code AVP to
-   indicate what action it took.
-
-8.5.1.  Abort-Session-Request
-
-   The Abort-Session-Request (ASR), indicated by the Command Code set to
-   274 and the message flags' 'R' bit set, may be sent by any Diameter
-   server or any Diameter proxy to the access device that is providing
-   session service, to request that the session identified by the
-   Session-Id be stopped.
-
-    Message Format
-
-         &lt;ASR>  ::= &lt; Diameter Header: 274, REQ, PXY >
-                    &lt; Session-Id >
-                    { Origin-Host }
-                    { Origin-Realm }
-                    { Destination-Realm }
-                    { Destination-Host }
-                    { Auth-Application-Id }
-                    [ User-Name ]
-                    [ Origin-State-Id ]
-                  * [ Proxy-Info ]
-                  * [ Route-Record ]
-                  * [ AVP ]
-
-8.5.2.  Abort-Session-Answer
-
-   The Abort-Session-Answer (ASA), indicated by the Command Code set to
-   274 and the message flags' 'R' bit clear, is sent in response to the
-   ASR.  The Result-Code AVP MUST be present and indicates the
-   disposition of the request.
-
-   If the session identified by Session-Id in the ASR was successfully
-   terminated, the Result-Code is set to DIAMETER_SUCCESS.  If the
-   session is not currently active, the Result-Code is set to
-   DIAMETER_UNKNOWN_SESSION_ID.  If the access device does not stop the
-   session for any other reason, the Result-Code is set to
-   DIAMETER_UNABLE_TO_COMPLY.
-
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 114]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-    Message Format
-
-         &lt;ASA>  ::= &lt; Diameter Header: 274, PXY >
-                    &lt; Session-Id >
-                    { Result-Code }
-                    { Origin-Host }
-                    { Origin-Realm }
-                    [ User-Name ]
-                    [ Origin-State-Id ]
-                    [ Error-Message ]
-                    [ Error-Reporting-Host ]
-                    [ Failed-AVP ]
-                  * [ Redirect-Host ]
-                    [ Redirect-Host-Usage ]
-                    [ Redirect-Max-Cache-Time ]
-                  * [ Proxy-Info ]
-                  * [ AVP ]
-
-8.6.  Inferring Session Termination from Origin-State-Id
-
-   The Origin-State-Id is used to allow detection of terminated sessions
-   for which no STR would have been issued, due to unanticipated
-   shutdown of an access device.
-
-   A Diameter client or access device increments the value of the
-   Origin-State-Id every time it is started or powered up.  The new
-   Origin-State-Id is then sent in the CER/CEA message immediately upon
-   connection to the server.  The Diameter server receiving the new
-   Origin-State-Id can determine whether the sending Diameter client had
-   abruptly shut down by comparing the old value of the Origin-State-Id
-   it has kept for that specific client is less than the new value and
-   whether it has un-terminated sessions originating from that client.
-
-   An access device can also include the Origin-State-Id in request
-   messages other than the CER if there are relays or proxies in between
-   the access device and the server.  In this case, however, the server
-   cannot discover that the access device has been restarted unless and
-   until it receives a new request from it.  Therefore, this mechanism
-   is more opportunistic across proxies and relays.
-
-   The Diameter server may assume that all sessions that were active
-   prior to detection of a client restart have been terminated.  The
-   Diameter server MAY clean up all session state associated with such
-   lost sessions, and it MAY also issue STRs for all such lost sessions
-   that were authorized on upstream servers, to allow session state to
-   be cleaned up globally.
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 115]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-8.7.  Auth-Request-Type AVP
-
-   The Auth-Request-Type AVP (AVP Code 274) is of type Enumerated and is
-   included in application-specific auth requests to inform the peers
-   whether a user is to be authenticated only, authorized only, or both.
-   Note any value other than both MAY cause RADIUS interoperability
-   issues.  The following values are defined:
-
-   AUTHENTICATE_ONLY 1
-
-      The request being sent is for authentication only, and it MUST
-      contain the relevant application-specific authentication AVPs that
-      are needed by the Diameter server to authenticate the user.
-
-   AUTHORIZE_ONLY 2
-
-      The request being sent is for authorization only, and it MUST
-      contain the application-specific authorization AVPs that are
-      necessary to identify the service being requested/offered.
-
-   AUTHORIZE_AUTHENTICATE 3
-
-      The request contains a request for both authentication and
-      authorization.  The request MUST include both the relevant
-      application-specific authentication information and authorization
-      information necessary to identify the service being requested/
-      offered.
-
-8.8.  Session-Id AVP
-
-   The Session-Id AVP (AVP Code 263) is of type UTF8String and is used
-   to identify a specific session (see Section 8).  All messages
-   pertaining to a specific session MUST include only one Session-Id
-   AVP, and the same value MUST be used throughout the life of a
-   session.  When present, the Session-Id SHOULD appear immediately
-   following the Diameter header (see Section 3).
-
-   The Session-Id MUST be globally and eternally unique, as it is meant
-   to uniquely identify a user session without reference to any other
-   information, and it may be needed to correlate historical
-   authentication information with accounting information.  The
-   Session-Id includes a mandatory portion and an implementation-defined
-   portion; a recommended format for the implementation-defined portion
-   is outlined below.
-
-   The Session-Id MUST begin with the sender's identity encoded in the
-   DiameterIdentity type (see Section 4.3.1).  The remainder of the
-   Session-Id is delimited by a ";" character, and it MAY be any
-
-
-
-Fajardo, et al.              Standards Track                  [Page 116]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   sequence that the client can guarantee to be eternally unique;
-   however, the following format is recommended, (square brackets []
-   indicate an optional element):
-
-      &lt;DiameterIdentity>;&lt;high 32 bits>;&lt;low 32 bits>[;&lt;optional value>]
-
-   &lt;high 32 bits> and &lt;low 32 bits> are decimal representations of the
-   high and low 32 bits of a monotonically increasing 64-bit value.  The
-   64-bit value is rendered in two part to simplify formatting by 32-bit
-   processors.  At startup, the high 32 bits of the 64-bit value MAY be
-   initialized to the time in NTP format [RFC5905], and the low 32 bits
-   MAY be initialized to zero.  This will for practical purposes
-   eliminate the possibility of overlapping Session-Ids after a reboot,
-   assuming the reboot process takes longer than a second.
-   Alternatively, an implementation MAY keep track of the increasing
-   value in non-volatile memory.
-
-
-   &lt;optional value> is implementation specific, but it may include a
-   modem's device Id, a Layer 2 address, timestamp, etc.
-
-   Example, in which there is no optional value:
-
-      accesspoint7.example.com;1876543210;523
-
-   Example, in which there is an optional value:
-
-     accesspoint7.example.com;1876543210;523;[email protected]
-
-   The Session-Id is created by the Diameter application initiating the
-   session, which, in most cases, is done by the client.  Note that a
-   Session-Id MAY be used for both the authentication, authorization,
-   and accounting commands of a given application.
-
-8.9.  Authorization-Lifetime AVP
-
-   The Authorization-Lifetime AVP (AVP Code 291) is of type Unsigned32
-   and contains the maximum number of seconds of service to be provided
-   to the user before the user is to be re-authenticated and/or re-
-   authorized.  Care should be taken when the Authorization-Lifetime
-   value is determined, since a low, non-zero value could create
-   significant Diameter traffic, which could congest both the network
-   and the agents.
-
-   A value of zero (0) means that immediate re-auth is necessary by the
-   access device.  The absence of this AVP, or a value of all ones
-   (meaning all bits in the 32-bit field are set to one) means no re-
-   auth is expected.
-
-
-
-Fajardo, et al.              Standards Track                  [Page 117]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   If both this AVP and the Session-Timeout AVP are present in a
-   message, the value of the latter MUST NOT be smaller than the
-   Authorization-Lifetime AVP.
-
-   An Authorization-Lifetime AVP MAY be present in re-authorization
-   messages, and it contains the number of seconds the user is
-   authorized to receive service from the time the re-auth answer
-   message is received by the access device.
-
-   This AVP MAY be provided by the client as a hint of the maximum
-   lifetime that it is willing to accept.  The server MUST return a
-   value that is equal to, or smaller than, the one provided by the
-   client.
-
-8.10.  Auth-Grace-Period AVP
-
-   The Auth-Grace-Period AVP (AVP Code 276) is of type Unsigned32 and
-   contains the number of seconds the Diameter server will wait
-   following the expiration of the Authorization-Lifetime AVP before
-   cleaning up resources for the session.
-
-8.11.  Auth-Session-State AVP
-
-   The Auth-Session-State AVP (AVP Code 277) is of type Enumerated and
-   specifies whether state is maintained for a particular session.  The
-   client MAY include this AVP in requests as a hint to the server, but
-   the value in the server's answer message is binding.  The following
-   values are supported:
-
-   STATE_MAINTAINED 0
-
-      This value is used to specify that session state is being
-      maintained, and the access device MUST issue a session termination
-      message when service to the user is terminated.  This is the
-      default value.
-
-   NO_STATE_MAINTAINED 1
-
-      This value is used to specify that no session termination messages
-      will be sent by the access device upon expiration of the
-      Authorization-Lifetime.
-
-8.12.  Re-Auth-Request-Type AVP
-
-   The Re-Auth-Request-Type AVP (AVP Code 285) is of type Enumerated and
-   is included in application-specific auth answers to inform the client
-   of the action expected upon expiration of the Authorization-Lifetime.
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 118]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   If the answer message contains an Authorization-Lifetime AVP with a
-   positive value, the Re-Auth-Request-Type AVP MUST be present in an
-   answer message.  The following values are defined:
-
-   AUTHORIZE_ONLY 0
-
-      An authorization only re-auth is expected upon expiration of the
-      Authorization-Lifetime.  This is the default value if the AVP is
-      not present in answer messages that include the Authorization-
-      Lifetime.
-
-   AUTHORIZE_AUTHENTICATE 1
-
-      An authentication and authorization re-auth is expected upon
-      expiration of the Authorization-Lifetime.
-
-8.13.  Session-Timeout AVP
-
-   The Session-Timeout AVP (AVP Code 27) [RFC2865] is of type Unsigned32
-   and contains the maximum number of seconds of service to be provided
-   to the user before termination of the session.  When both the
-   Session-Timeout and the Authorization-Lifetime AVPs are present in an
-   answer message, the former MUST be equal to or greater than the value
-   of the latter.
-
-   A session that terminates on an access device due to the expiration
-   of the Session-Timeout MUST cause an STR to be issued, unless both
-   the access device and the home server had previously agreed that no
-   session termination messages would be sent (see Section 8).
-
-   A Session-Timeout AVP MAY be present in a re-authorization answer
-   message, and it contains the remaining number of seconds from the
-   beginning of the re-auth.
-
-   A value of zero, or the absence of this AVP, means that this session
-   has an unlimited number of seconds before termination.
-
-   This AVP MAY be provided by the client as a hint of the maximum
-   timeout that it is willing to accept.  However, the server MAY return
-   a value that is equal to, or smaller than, the one provided by the
-   client.
-
-8.14.  User-Name AVP
-
-   The User-Name AVP (AVP Code 1) [RFC2865] is of type UTF8String, which
-   contains the User-Name, in a format consistent with the NAI
-   specification [RFC4282].
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 119]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-8.15.  Termination-Cause AVP
-
-   The Termination-Cause AVP (AVP Code 295) is of type Enumerated, and
-   is used to indicate the reason why a session was terminated on the
-   access device.  The currently assigned values for this AVP can be
-   found in the IANA registry for Termination-Cause AVP Values
-   [IANATCV].
-
-8.16.  Origin-State-Id AVP
-
-   The Origin-State-Id AVP (AVP Code 278), of type Unsigned32, is a
-   monotonically increasing value that is advanced whenever a Diameter
-   entity restarts with loss of previous state, for example, upon
-   reboot.  Origin-State-Id MAY be included in any Diameter message,
-   including CER.
-
-   A Diameter entity issuing this AVP MUST create a higher value for
-   this AVP each time its state is reset.  A Diameter entity MAY set
-   Origin-State-Id to the time of startup, or it MAY use an incrementing
-   counter retained in non-volatile memory across restarts.
-
-   The Origin-State-Id, if present, MUST reflect the state of the entity
-   indicated by Origin-Host.  If a proxy modifies Origin-Host, it MUST
-   either remove Origin-State-Id or modify it appropriately as well.
-   Typically, Origin-State-Id is used by an access device that always
-   starts up with no active sessions; that is, any session active prior
-   to restart will have been lost.  By including Origin-State-Id in a
-   message, it allows other Diameter entities to infer that sessions
-   associated with a lower Origin-State-Id are no longer active.  If an
-   access device does not intend for such inferences to be made, it MUST
-   either not include Origin-State-Id in any message or set its value to
-   0.
-
-8.17.  Session-Binding AVP
-
-   The Session-Binding AVP (AVP Code 270) is of type Unsigned32, and it
-   MAY be present in application-specific authorization answer messages.
-   If present, this AVP MAY inform the Diameter client that all future
-   application-specific re-auth and Session-Termination-Request messages
-   for this session MUST be sent to the same authorization server.
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 120]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   This field is a bit mask, and the following bits have been defined:
-
-   RE_AUTH 1
-
-      When set, future re-auth messages for this session MUST NOT
-      include the Destination-Host AVP.  When cleared, the default
-      value, the Destination-Host AVP MUST be present in all re-auth
-      messages for this session.
-
-   STR 2
-
-      When set, the STR message for this session MUST NOT include the
-      Destination-Host AVP.  When cleared, the default value, the
-      Destination-Host AVP MUST be present in the STR message for this
-      session.
-
-   ACCOUNTING 4
-
-      When set, all accounting messages for this session MUST NOT
-      include the Destination-Host AVP.  When cleared, the default
-      value, the Destination-Host AVP, if known, MUST be present in all
-      accounting messages for this session.
-
-8.18.  Session-Server-Failover AVP
-
-   The Session-Server-Failover AVP (AVP Code 271) is of type Enumerated
-   and MAY be present in application-specific authorization answer
-   messages that either do not include the Session-Binding AVP or
-   include the Session-Binding AVP with any of the bits set to a zero
-   value.  If present, this AVP MAY inform the Diameter client that if a
-   re-auth or STR message fails due to a delivery problem, the Diameter
-   client SHOULD issue a subsequent message without the Destination-Host
-   AVP.  When absent, the default value is REFUSE_SERVICE.
-
-   The following values are supported:
-
-   REFUSE_SERVICE 0
-
-      If either the re-auth or the STR message delivery fails, terminate
-      service with the user and do not attempt any subsequent attempts.
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 121]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   TRY_AGAIN 1
-
-      If either the re-auth or the STR message delivery fails, resend
-      the failed message without the Destination-Host AVP present.
-
-   ALLOW_SERVICE 2
-
-      If re-auth message delivery fails, assume that re-authorization
-      succeeded.  If STR message delivery fails, terminate the session.
-
-   TRY_AGAIN_ALLOW_SERVICE 3
-
-      If either the re-auth or the STR message delivery fails, resend
-      the failed message without the Destination-Host AVP present.  If
-      the second delivery fails for re-auth, assume re-authorization
-      succeeded.  If the second delivery fails for STR, terminate the
-      session.
-
-8.19.  Multi-Round-Time-Out AVP
-
-   The Multi-Round-Time-Out AVP (AVP Code 272) is of type Unsigned32 and
-   SHOULD be present in application-specific authorization answer
-   messages whose Result-Code AVP is set to DIAMETER_MULTI_ROUND_AUTH.
-   This AVP contains the maximum number of seconds that the access
-   device MUST provide the user in responding to an authentication
-   request.
-
-8.20.  Class AVP
-
-   The Class AVP (AVP Code 25) is of type OctetString and is used by
-   Diameter servers to return state information to the access device.
-   When one or more Class AVPs are present in application-specific
-   authorization answer messages, they MUST be present in subsequent re-
-   authorization, session termination and accounting messages.  Class
-   AVPs found in a re-authorization answer message override the ones
-   found in any previous authorization answer message.  Diameter server
-   implementations SHOULD NOT return Class AVPs that require more than
-   4096 bytes of storage on the Diameter client.  A Diameter client that
-   receives Class AVPs whose size exceeds local available storage MUST
-   terminate the session.
-
-8.21.  Event-Timestamp AVP
-
-   The Event-Timestamp (AVP Code 55) is of type Time and MAY be included
-   in an Accounting-Request and Accounting-Answer messages to record the
-   time that the reported event occurred, in seconds since January 1,
-   1900 00:00 UTC.
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 122]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-9.  Accounting
-
-   This accounting protocol is based on a server directed model with
-   capabilities for real-time delivery of accounting information.
-   Several fault resilience methods [RFC2975] have been built into the
-   protocol in order minimize loss of accounting data in various fault
-   situations and under different assumptions about the capabilities of
-   the used devices.
-
-9.1.  Server Directed Model
-
-   The server directed model means that the device generating the
-   accounting data gets information from either the authorization server
-   (if contacted) or the accounting server regarding the way accounting
-   data shall be forwarded.  This information includes accounting record
-   timeliness requirements.
-
-   As discussed in [RFC2975], real-time transfer of accounting records
-   is a requirement, such as the need to perform credit-limit checks and
-   fraud detection.  Note that batch accounting is not a requirement,
-   and is therefore not supported by Diameter.  Should batched
-   accounting be required in the future, a new Diameter application will
-   need to be created, or it could be handled using another protocol.
-   Note, however, that even if at the Diameter layer, accounting
-   requests are processed one by one; transport protocols used under
-   Diameter typically batch several requests in the same packet under
-   heavy traffic conditions.  This may be sufficient for many
-   applications.
-
-   The authorization server (chain) directs the selection of proper
-   transfer strategy, based on its knowledge of the user and
-   relationships of roaming partnerships.  The server (or agents) uses
-   the Acct-Interim-Interval and Accounting-Realtime-Required AVPs to
-   control the operation of the Diameter peer operating as a client.
-   The Acct-Interim-Interval AVP, when present, instructs the Diameter
-   node acting as a client to produce accounting records continuously
-   even during a session.  Accounting-Realtime-Required AVP is used to
-   control the behavior of the client when the transfer of accounting
-   records from the Diameter client is delayed or unsuccessful.
-
-   The Diameter accounting server MAY override the interim interval or
-   the real-time requirements by including the Acct-Interim-Interval or
-   Accounting-Realtime-Required AVP in the Accounting-Answer message.
-   When one of these AVPs is present, the latest value received SHOULD
-   be used in further accounting activities for the same session.
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 123]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-9.2.  Protocol Messages
-
-   A Diameter node that receives a successful authentication and/or
-   authorization message from the Diameter server SHOULD collect
-   accounting information for the session.  The Accounting-Request
-   message is used to transmit the accounting information to the
-   Diameter server, which MUST reply with the Accounting-Answer message
-   to confirm reception.  The Accounting-Answer message includes the
-   Result-Code AVP, which MAY indicate that an error was present in the
-   accounting message.  The value of the Accounting-Realtime-Required
-   AVP received earlier for the session in question may indicate that
-   the user's session has to be terminated when a rejected Accounting-
-   Request message was received.
-
-9.3.  Accounting Application Extension and Requirements
-
-   Each Diameter application (e.g., NASREQ, Mobile IP) SHOULD define its
-   service-specific AVPs that MUST be present in the Accounting-Request
-   message in a section titled "Accounting AVPs".  The application MUST
-   assume that the AVPs described in this document will be present in
-   all Accounting messages, so only their respective service-specific
-   AVPs need to be defined in that section.
-
-   Applications have the option of using one or both of the following
-   accounting application extension models:
-
-   Split Accounting Service
-
-      The accounting message will carry the Application Id of the
-      Diameter base accounting application (see Section 2.4).
-      Accounting messages may be routed to Diameter nodes other than the
-      corresponding Diameter application.  These nodes might be
-      centralized accounting servers that provide accounting service for
-      multiple different Diameter applications.  These nodes MUST
-      advertise the Diameter base accounting Application Id during
-      capabilities exchange.
-
-   Coupled Accounting Service
-
-      The accounting message will carry the Application Id of the
-      application that is using it.  The application itself will process
-      the received accounting records or forward them to an accounting
-      server.  There is no accounting application advertisement required
-      during capabilities exchange, and the accounting messages will be
-      routed the same way as any of the other application messages.
-
-   In cases where an application does not define its own accounting
-   service, it is preferred that the split accounting model be used.
-
-
-
-Fajardo, et al.              Standards Track                  [Page 124]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-9.4.  Fault Resilience
-
-   Diameter base protocol mechanisms are used to overcome small message
-   loss and network faults of a temporary nature.
-
-   Diameter peers acting as clients MUST implement the use of failover
-   to guard against server failures and certain network failures.
-   Diameter peers acting as agents or related off-line processing
-   systems MUST detect duplicate accounting records caused by the
-   sending of the same record to several servers and duplication of
-   messages in transit.  This detection MUST be based on the inspection
-   of the Session-Id and Accounting-Record-Number AVP pairs.  Appendix C
-   discusses duplicate detection needs and implementation issues.
-
-   Diameter clients MAY have non-volatile memory for the safe storage of
-   accounting records over reboots or extended network failures, network
-   partitions, and server failures.  If such memory is available, the
-   client SHOULD store new accounting records there as soon as the
-   records are created and until a positive acknowledgement of their
-   reception from the Diameter server has been received.  Upon a reboot,
-   the client MUST start sending the records in the non-volatile memory
-   to the accounting server with the appropriate modifications in
-   termination cause, session length, and other relevant information in
-   the records.
-
-   A further application of this protocol may include AVPs to control
-   the maximum number of accounting records that may be stored in the
-   Diameter client without committing them to the non-volatile memory or
-   transferring them to the Diameter server.
-
-   The client SHOULD NOT remove the accounting data from any of its
-   memory areas before the correct Accounting-Answer has been received.
-   The client MAY remove the oldest, undelivered, or as yet
-   unacknowledged accounting data if it runs out of resources such as
-   memory.  It is an implementation-dependent matter for the client to
-   accept new sessions under this condition.
-
-9.5.  Accounting Records
-
-   In all accounting records, the Session-Id AVP MUST be present; the
-   User-Name AVP MUST be present if it is available to the Diameter
-   client.
-
-   Different types of accounting records are sent depending on the
-   actual type of accounted service and the authorization server's
-   directions for interim accounting.  If the accounted service is a
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 125]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   one-time event, meaning that the start and stop of the event are
-   simultaneous, then the Accounting-Record-Type AVP MUST be present and
-   set to the value EVENT_RECORD.
-
-   If the accounted service is of a measurable length, then the AVP MUST
-   use the values START_RECORD, STOP_RECORD, and possibly,
-   INTERIM_RECORD.  If the authorization server has not directed interim
-   accounting to be enabled for the session, two accounting records MUST
-   be generated for each service of type session.  When the initial
-   Accounting-Request for a given session is sent, the Accounting-
-   Record-Type AVP MUST be set to the value START_RECORD.  When the last
-   Accounting-Request is sent, the value MUST be STOP_RECORD.
-
-   If the authorization server has directed interim accounting to be
-   enabled, the Diameter client MUST produce additional records between
-   the START_RECORD and STOP_RECORD, marked INTERIM_RECORD.  The
-   production of these records is directed by Acct-Interim-Interval as
-   well as any re-authentication or re-authorization of the session.
-   The Diameter client MUST overwrite any previous interim accounting
-   records that are locally stored for delivery, if a new record is
-   being generated for the same session.  This ensures that only one
-   pending interim record can exist on an access device for any given
-   session.
-
-   A particular value of Accounting-Sub-Session-Id MUST appear only in
-   one sequence of accounting records from a Diameter client, except for
-   the purposes of retransmission.  The one sequence that is sent MUST
-   be either one record with Accounting-Record-Type AVP set to the value
-   EVENT_RECORD or several records starting with one having the value
-   START_RECORD, followed by zero or more INTERIM_RECORDs and a single
-   STOP_RECORD.  A particular Diameter application specification MUST
-   define the type of sequences that MUST be used.
-
-9.6.  Correlation of Accounting Records
-
-   If an application uses accounting messages, it can correlate
-   accounting records with a specific application session by using the
-   Session-Id of the particular application session in the accounting
-   messages.  Accounting messages MAY also use a different Session-Id
-   from that of the application sessions, in which case, other session-
-   related information is needed to perform correlation.
-
-   In cases where an application requires multiple accounting sub-
-   sessions, an Accounting-Sub-Session-Id AVP is used to differentiate
-   each sub-session.  The Session-Id would remain constant for all sub-
-   sessions and is used to correlate all the sub-sessions to a
-   particular application session.  Note that receiving a STOP_RECORD
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 126]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   with no Accounting-Sub-Session-Id AVP when sub-sessions were
-   originally used in the START_RECORD messages implies that all sub-
-   sessions are terminated.
-
-   There are also cases where an application needs to correlate multiple
-   application sessions into a single accounting record; the accounting
-   record may span multiple different Diameter applications and sessions
-   used by the same user at a given time.  In such cases, the Acct-
-   Multi-Session-Id AVP is used.  The Acct-Multi-Session-Id AVP SHOULD
-   be signaled by the server to the access device (typically, during
-   authorization) when it determines that a request belongs to an
-   existing session.  The access device MUST then include the Acct-
-   Multi-Session-Id AVP in all subsequent accounting messages.
-
-   The Acct-Multi-Session-Id AVP MAY include the value of the original
-   Session-Id.  Its contents are implementation specific, but the MUST
-   be globally unique across other Acct-Multi-Session-Ids and MUST NOT
-   change during the life of a session.
-
-   A Diameter application document MUST define the exact concept of a
-   session that is being accounted, and it MAY define the concept of a
-   multi-session.  For instance, the NASREQ DIAMETER application treats
-   a single PPP connection to a Network Access Server as one session and
-   a set of Multilink PPP sessions as one multi-session.
-
-9.7.  Accounting Command Codes
-
-   This section defines Command Code values that MUST be supported by
-   all Diameter implementations that provide accounting services.
-
-9.7.1.  Accounting-Request
-
-   The Accounting-Request (ACR) command, indicated by the Command Code
-   field set to 271 and the Command Flags' 'R' bit set, is sent by a
-   Diameter node, acting as a client, in order to exchange accounting
-   information with a peer.
-
-   In addition to the AVPs listed below, Accounting-Request messages
-   SHOULD include service-specific accounting AVPs.
-
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 127]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      Message Format
-
-         &lt;ACR> ::= &lt; Diameter Header: 271, REQ, PXY >
-                   &lt; Session-Id >
-                   { Origin-Host }
-                   { Origin-Realm }
-                   { Destination-Realm }
-                   { Accounting-Record-Type }
-                   { Accounting-Record-Number }
-                   [ Acct-Application-Id ]
-                   [ Vendor-Specific-Application-Id ]
-                   [ User-Name ]
-                   [ Destination-Host ]
-                   [ Accounting-Sub-Session-Id ]
-                   [ Acct-Session-Id ]
-                   [ Acct-Multi-Session-Id ]
-                   [ Acct-Interim-Interval ]
-                   [ Accounting-Realtime-Required ]
-                   [ Origin-State-Id ]
-                   [ Event-Timestamp ]
-                 * [ Proxy-Info ]
-                 * [ Route-Record ]
-                 * [ AVP ]
-
-9.7.2.  Accounting-Answer
-
-   The Accounting-Answer (ACA) command, indicated by the Command Code
-   field set to 271 and the Command Flags' 'R' bit cleared, is used to
-   acknowledge an Accounting-Request command.  The Accounting-Answer
-   command contains the same Session-Id as the corresponding request.
-
-   Only the target Diameter server, known as the home Diameter server,
-   SHOULD respond with the Accounting-Answer command.
-
-   In addition to the AVPs listed below, Accounting-Answer messages
-   SHOULD include service-specific accounting AVPs.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 128]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      Message Format
-
-         &lt;ACA> ::= &lt; Diameter Header: 271, PXY >
-                   &lt; Session-Id >
-                   { Result-Code }
-                   { Origin-Host }
-                   { Origin-Realm }
-                   { Accounting-Record-Type }
-                   { Accounting-Record-Number }
-                   [ Acct-Application-Id ]
-                   [ Vendor-Specific-Application-Id ]
-                   [ User-Name ]
-                   [ Accounting-Sub-Session-Id ]
-                   [ Acct-Session-Id ]
-                   [ Acct-Multi-Session-Id ]
-                   [ Error-Message ]
-                   [ Error-Reporting-Host ]
-                   [ Failed-AVP ]
-                   [ Acct-Interim-Interval ]
-                   [ Accounting-Realtime-Required ]
-                   [ Origin-State-Id ]
-                   [ Event-Timestamp ]
-                 * [ Proxy-Info ]
-                 * [ AVP ]
-
-9.8.  Accounting AVPs
-
-   This section contains AVPs that describe accounting usage information
-   related to a specific session.
-
-9.8.1.  Accounting-Record-Type AVP
-
-   The Accounting-Record-Type AVP (AVP Code 480) is of type Enumerated
-   and contains the type of accounting record being sent.  The following
-   values are currently defined for the Accounting-Record-Type AVP:
-
-   EVENT_RECORD 1
-
-      An Accounting Event Record is used to indicate that a one-time
-      event has occurred (meaning that the start and end of the event
-      are simultaneous).  This record contains all information relevant
-      to the service, and it is the only record of the service.
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 129]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   START_RECORD 2
-
-      Accounting Start, Interim, and Stop Records are used to indicate
-      that a service of a measurable length has been given.  An
-      Accounting Start Record is used to initiate an accounting session
-      and contains accounting information that is relevant to the
-      initiation of the session.
-
-   INTERIM_RECORD 3
-
-      An Interim Accounting Record contains cumulative accounting
-      information for an existing accounting session.  Interim
-      Accounting Records SHOULD be sent every time a re-authentication
-      or re-authorization occurs.  Further, additional interim record
-      triggers MAY be defined by application-specific Diameter
-      applications.  The selection of whether to use INTERIM_RECORD
-      records is done by the Acct-Interim-Interval AVP.
-
-   STOP_RECORD 4
-
-      An Accounting Stop Record is sent to terminate an accounting
-      session and contains cumulative accounting information relevant to
-      the existing session.
-
-9.8.2.  Acct-Interim-Interval AVP
-
-   The Acct-Interim-Interval AVP (AVP Code 85) is of type Unsigned32 and
-   is sent from the Diameter home authorization server to the Diameter
-   client.  The client uses information in this AVP to decide how and
-   when to produce accounting records.  With different values in this
-   AVP, service sessions can result in one, two, or two+N accounting
-   records, based on the needs of the home organization.  The following
-   accounting record production behavior is directed by the inclusion of
-   this AVP:
-
-   1.  The omission of the Acct-Interim-Interval AVP or its inclusion
-       with Value field set to 0 means that EVENT_RECORD, START_RECORD,
-       and STOP_RECORD are produced, as appropriate for the service.
-
-   2.  The inclusion of the AVP with Value field set to a non-zero value
-       means that INTERIM_RECORD records MUST be produced between the
-       START_RECORD and STOP_RECORD records.  The Value field of this
-       AVP is the nominal interval between these records in seconds.
-       The Diameter node that originates the accounting information,
-       known as the client, MUST produce the first INTERIM_RECORD record
-       roughly at the time when this nominal interval has elapsed from
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 130]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-       the START_RECORD, the next one again as the interval has elapsed
-       once more, and so on until the session ends and a STOP_RECORD
-       record is produced.
-
-       The client MUST ensure that the interim record production times
-       are randomized so that large accounting message storms are not
-       created either among records or around a common service start
-       time.
-
-9.8.3.   Accounting-Record-Number AVP
-
-   The Accounting-Record-Number AVP (AVP Code 485) is of type Unsigned32
-   and identifies this record within one session.  As Session-Id AVPs
-   are globally unique, the combination of Session-Id and Accounting-
-   Record-Number AVPs is also globally unique and can be used in
-   matching accounting records with confirmations.  An easy way to
-   produce unique numbers is to set the value to 0 for records of type
-   EVENT_RECORD and START_RECORD and set the value to 1 for the first
-   INTERIM_RECORD, 2 for the second, and so on until the value for
-   STOP_RECORD is one more than for the last INTERIM_RECORD.
-
-9.8.4.  Acct-Session-Id AVP
-
-   The Acct-Session-Id AVP (AVP Code 44) is of type OctetString is only
-   used when RADIUS/Diameter translation occurs.  This AVP contains the
-   contents of the RADIUS Acct-Session-Id attribute.
-
-9.8.5.  Acct-Multi-Session-Id AVP
-
-   The Acct-Multi-Session-Id AVP (AVP Code 50) is of type UTF8String,
-   following the format specified in Section 8.8.  The Acct-Multi-
-   Session-Id AVP is used to link multiple related accounting sessions,
-   where each session would have a unique Session-Id but the same Acct-
-   Multi-Session-Id AVP.  This AVP MAY be returned by the Diameter
-   server in an authorization answer, and it MUST be used in all
-   accounting messages for the given session.
-
-9.8.6.  Accounting-Sub-Session-Id AVP
-
-   The Accounting-Sub-Session-Id AVP (AVP Code 287) is of type
-   Unsigned64 and contains the accounting sub-session identifier.  The
-   combination of the Session-Id and this AVP MUST be unique per sub-
-   session, and the value of this AVP MUST be monotonically increased by
-   one for all new sub-sessions.  The absence of this AVP implies no
-   sub-sessions are in use, with the exception of an Accounting-Request
-   whose Accounting-Record-Type is set to STOP_RECORD.  A STOP_RECORD
-   message with no Accounting-Sub-Session-Id AVP present will signal the
-   termination of all sub-sessions for a given Session-Id.
-
-
-
-Fajardo, et al.              Standards Track                  [Page 131]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-9.8.7.   Accounting-Realtime-Required AVP
-
-   The Accounting-Realtime-Required AVP (AVP Code 483) is of type
-   Enumerated and is sent from the Diameter home authorization server to
-   the Diameter client or in the Accounting-Answer from the accounting
-   server.  The client uses information in this AVP to decide what to do
-   if the sending of accounting records to the accounting server has
-   been temporarily prevented due to, for instance, a network problem.
-
-   DELIVER_AND_GRANT 1
-
-      The AVP with Value field set to DELIVER_AND_GRANT means that the
-      service MUST only be granted as long as there is a connection to
-      an accounting server.  Note that the set of alternative accounting
-      servers are treated as one server in this sense.  Having to move
-      the accounting record stream to a backup server is not a reason to
-      discontinue the service to the user.
-
-   GRANT_AND_STORE 2
-
-      The AVP with Value field set to GRANT_AND_STORE means that service
-      SHOULD be granted if there is a connection, or as long as records
-      can still be stored as described in Section 9.4.
-
-      This is the default behavior if the AVP isn't included in the
-      reply from the authorization server.
-
-   GRANT_AND_LOSE 3
-
-      The AVP with Value field set to GRANT_AND_LOSE means that service
-      SHOULD be granted even if the records cannot be delivered or
-      stored.
-
-10.  AVP Occurrence Tables
-
-   The following tables present the AVPs defined in this document and
-   specify in which Diameter messages they MAY or MAY NOT be present.
-   AVPs that occur only inside a Grouped AVP are not shown in these
-   tables.
-
-   The tables use the following symbols:
-
-   0     The AVP MUST NOT be present in the message.
-
-   0+    Zero or more instances of the AVP MAY be present in the
-         message.
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 132]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   0-1   Zero or one instance of the AVP MAY be present in the message.
-         It is considered an error if there are more than one instance
-         of the AVP.
-
-   1     One instance of the AVP MUST be present in the message.
-
-   1+    At least one instance of the AVP MUST be present in the
-         message.
-
-10.1.  Base Protocol Command AVP Table
-
-   The table in this section is limited to the non-Accounting Command
-   Codes defined in this specification.
-
-                       +-----------------------------------------------+
-                       |                  Command Code                 |
-                       +---+---+---+---+---+---+---+---+---+---+---+---+
-   Attribute Name      |CER|CEA|DPR|DPA|DWR|DWA|RAR|RAA|ASR|ASA|STR|STA|
-   --------------------+---+---+---+---+---+---+---+---+---+---+---+---+
-   Acct-Interim-       |0  |0  |0  |0  |0  |0  |0-1|0  |0  |0  |0  |0  |
-     Interval          |   |   |   |   |   |   |   |   |   |   |   |   |
-   Accounting-Realtime-|0  |0  |0  |0  |0  |0  |0-1|0  |0  |0  |0  |0  |
-     Required          |   |   |   |   |   |   |   |   |   |   |   |   |
-   Acct-Application-Id |0+ |0+ |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Auth-Application-Id |0+ |0+ |0  |0  |0  |0  |1  |0  |1  |0  |1  |0  |
-   Auth-Grace-Period   |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Auth-Request-Type   |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Auth-Session-State  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Authorization-      |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-     Lifetime          |   |   |   |   |   |   |   |   |   |   |   |   |
-   Class               |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0+ |0+ |
-   Destination-Host    |0  |0  |0  |0  |0  |0  |1  |0  |1  |0  |0-1|0  |
-   Destination-Realm   |0  |0  |0  |0  |0  |0  |1  |0  |1  |0  |1  |0  |
-   Disconnect-Cause    |0  |0  |1  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Error-Message       |0  |0-1|0  |0-1|0  |0-1|0  |0-1|0  |0-1|0  |0-1|
-   Error-Reporting-Host|0  |0  |0  |0  |0  |0  |0  |0-1|0  |0-1|0  |0-1|
-   Failed-AVP          |0  |0-1|0  |0-1|0  |0-1|0  |0-1|0  |0-1|0  |0-1|
-   Firmware-Revision   |0-1|0-1|0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Host-IP-Address     |1+ |1+ |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Inband-Security-Id  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Multi-Round-Time-Out|0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 133]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Origin-Host         |1  |1  |1  |1  |1  |1  |1  |1  |1  |1  |1  |1  |
-   Origin-Realm        |1  |1  |1  |1  |1  |1  |1  |1  |1  |1  |1  |1  |
-   Origin-State-Id     |0-1|0-1|0  |0  |0-1|0-1|0-1|0-1|0-1|0-1|0-1|0-1|
-   Product-Name        |1  |1  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Proxy-Info          |0  |0  |0  |0  |0  |0  |0+ |0+ |0+ |0+ |0+ |0+ |
-   Redirect-Host       |0  |0  |0  |0  |0  |0  |0  |0+ |0  |0+ |0  |0+ |
-   Redirect-Host-Usage |0  |0  |0  |0  |0  |0  |0  |0-1|0  |0-1|0  |0-1|
-   Redirect-Max-Cache- |0  |0  |0  |0  |0  |0  |0  |0-1|0  |0-1|0  |0-1|
-     Time              |   |   |   |   |   |   |   |   |   |   |   |   |
-   Result-Code         |0  |1  |0  |1  |0  |1  |0  |1  |0  |1  |0  |1  |
-   Re-Auth-Request-Type|0  |0  |0  |0  |0  |0  |1  |0  |0  |0  |0  |0  |
-   Route-Record        |0  |0  |0  |0  |0  |0  |0+ |0  |0+ |0  |0+ |0  |
-   Session-Binding     |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Session-Id          |0  |0  |0  |0  |0  |0  |1  |1  |1  |1  |1  |1  |
-   Session-Server-     |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-     Failover          |   |   |   |   |   |   |   |   |   |   |   |   |
-   Session-Timeout     |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Supported-Vendor-Id |0+ |0+ |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Termination-Cause   |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |1  |0  |
-   User-Name           |0  |0  |0  |0  |0  |0  |0-1|0-1|0-1|0-1|0-1|0-1|
-   Vendor-Id           |1  |1  |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-   Vendor-Specific-    |0+ |0+ |0  |0  |0  |0  |0  |0  |0  |0  |0  |0  |
-     Application-Id    |   |   |   |   |   |   |   |   |   |   |   |   |
-   --------------------+---+---+---+---+---+---+---+---+---+---+---+---+
-
-10.2.  Accounting AVP Table
-
-   The table in this section is used to represent which AVPs defined in
-   this document are to be present in the Accounting messages.  These
-   AVP occurrence requirements are guidelines, which may be expanded,
-   and/or overridden by application-specific requirements in the
-   Diameter applications documents.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 134]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-                                    +-----------+
-                                    |  Command  |
-                                    |    Code   |
-                                    +-----+-----+
-      Attribute Name                | ACR | ACA |
-      ------------------------------+-----+-----+
-      Acct-Interim-Interval         | 0-1 | 0-1 |
-      Acct-Multi-Session-Id         | 0-1 | 0-1 |
-      Accounting-Record-Number      | 1   | 1   |
-      Accounting-Record-Type        | 1   | 1   |
-      Acct-Session-Id               | 0-1 | 0-1 |
-      Accounting-Sub-Session-Id     | 0-1 | 0-1 |
-      Accounting-Realtime-Required  | 0-1 | 0-1 |
-      Acct-Application-Id           | 0-1 | 0-1 |
-      Auth-Application-Id           | 0   | 0   |
-      Class                         | 0+  | 0+  |
-      Destination-Host              | 0-1 | 0   |
-      Destination-Realm             | 1   | 0   |
-      Error-Reporting-Host          | 0   | 0+  |
-      Event-Timestamp               | 0-1 | 0-1 |
-      Failed-AVP                    | 0   | 0-1 |
-      Origin-Host                   | 1   | 1   |
-      Origin-Realm                  | 1   | 1   |
-      Proxy-Info                    | 0+  | 0+  |
-      Route-Record                  | 0+  | 0   |
-      Result-Code                   | 0   | 1   |
-      Session-Id                    | 1   | 1   |
-      Termination-Cause             | 0   | 0   |
-      User-Name                     | 0-1 | 0-1 |
-      Vendor-Specific-Application-Id| 0-1 | 0-1 |
-      ------------------------------+-----+-----+
-
-11.  IANA Considerations
-
-   This section provides guidance to the Internet Assigned Numbers
-   Authority (IANA) regarding registration of values related to the
-   Diameter protocol, in accordance with [RFC5226].  Existing IANA
-   registries and assignments put in place by RFC 3588 remain the same
-   unless explicitly updated or deprecated in this section.
-
-11.1.  AVP Header
-
-   As defined in Section 4, the AVP header contains three fields that
-   require IANA namespace management: the AVP Code, Vendor-ID, and Flags
-   fields.
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 135]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-11.1.1.  AVP Codes
-
-   There are multiple namespaces.  Vendors can have their own AVP Codes
-   namespace that will be identified by their Vendor-ID (also known as
-   Enterprise-Number), and they control the assignments of their vendor-
-   specific AVP Codes within their own namespace.  The absence of a
-   Vendor-ID or a Vendor-ID value of zero (0) identifies the IETF AVP
-   Codes namespace, which is under IANA control.  The AVP Codes and
-   sometimes possible values in an AVP are controlled and maintained by
-   IANA.  AVP Code 0 is not used.  AVP Codes 1-255 are managed
-   separately as RADIUS Attribute Types.  Where a Vendor-Specific AVP is
-   implemented by more than one vendor, allocation of global AVPs should
-   be encouraged instead.
-
-   AVPs may be allocated following Expert Review (by a Designated
-   Expert) with Specification Required [RFC5226].  A block allocation
-   (release of more than three AVPs at a time for a given purpose)
-   requires IETF Review [RFC5226].
-
-11.1.2.  AVP Flags
-
-   Section 4.1 describes the existing AVP Flags.  The remaining bits can
-   only be assigned via a Standards Action [RFC5226].
-
-11.2.  Diameter Header
-
-11.2.1.  Command Codes
-
-   For the Diameter header, the Command Code namespace allocation has
-   changed.  The new allocation rules are as follows:
-
-      The Command Code values 256 - 8,388,607 (0x100 to 0x7fffff) are
-      for permanent, standard commands, allocated by IETF Review
-      [RFC5226].
-
-      The values 8,388,608 - 16,777,213 (0x800000 - 0xfffffd) are
-      reserved for vendor-specific Command Codes, to be allocated on a
-      First Come, First Served basis by IANA [RFC5226].  The request to
-      IANA for a Vendor-Specific Command Code SHOULD include a reference
-      to a publicly available specification that documents the command
-      in sufficient detail to aid in interoperability between
-      independent implementations.  If the specification cannot be made
-      publicly available, the request for a vendor-specific Command Code
-      MUST include the contact information of persons and/or entities
-      responsible for authoring and maintaining the command.
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 136]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      The values 16,777,214 and 16,777,215 (hexadecimal values 0xfffffe
-      - 0xffffff) are reserved for experimental commands.  As these
-      codes are only for experimental and testing purposes, no guarantee
-      is made for interoperability between Diameter peers using
-      experimental commands.
-
-11.2.2.  Command Flags
-
-   Section 3 describes the existing Command Flags field.  The remaining
-   bits can only be assigned via a Standards Action [RFC5226].
-
-11.3.  AVP Values
-
-   For AVP values, the Experimental-Result-Code AVP value allocation has
-   been added; see Section 11.3.1.  The old AVP value allocation rule,
-   IETF Consensus, has been updated to IETF Review as per [RFC5226], and
-   affected AVPs are listed as reminders.
-
-11.3.1.  Experimental-Result-Code AVP
-
-   Values for this AVP are purely local to the indicated vendor, and no
-   IANA registry is maintained for them.
-
-11.3.2.  Result-Code AVP Values
-
-   New values are available for assignment via IETF Review [RFC5226].
-
-11.3.3.  Accounting-Record-Type AVP Values
-
-   New values are available for assignment via IETF Review [RFC5226].
-
-11.3.4.  Termination-Cause AVP Values
-
-   New values are available for assignment via IETF Review [RFC5226].
-
-11.3.5.  Redirect-Host-Usage AVP Values
-
-   New values are available for assignment via IETF Review [RFC5226].
-
-11.3.6.  Session-Server-Failover AVP Values
-
-   New values are available for assignment via IETF Review [RFC5226].
-
-11.3.7.  Session-Binding AVP Values
-
-   New values are available for assignment via IETF Review [RFC5226].
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 137]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-11.3.8.  Disconnect-Cause AVP Values
-
-   New values are available for assignment via IETF Review [RFC5226].
-
-11.3.9.  Auth-Request-Type AVP Values
-
-   New values are available for assignment via IETF Review [RFC5226].
-
-11.3.10.  Auth-Session-State AVP Values
-
-   New values are available for assignment via IETF Review [RFC5226].
-
-11.3.11.  Re-Auth-Request-Type AVP Values
-
-   New values are available for assignment via IETF Review [RFC5226].
-
-11.3.12.  Accounting-Realtime-Required AVP Values
-
-   New values are available for assignment via IETF Review [RFC5226].
-
-11.3.13.  Inband-Security-Id AVP (code 299)
-
-   The use of this AVP has been deprecated.
-
-11.4.  _diameters Service Name and Port Number Registration
-
-   IANA has registered the "_diameters" service name and assigned port
-   numbers for TLS/TCP and DTLS/SCTP according to the guidelines given
-   in [RFC6335].
-
-      Service Name:         _diameters
-
-      Transport Protocols:  TCP, SCTP
-
-      Assignee:             IESG &lt;[email protected]>
-
-      Contact:              IETF Chair &lt;[email protected]>
-
-      Description:          Diameter over TLS/TCP and DTLS/SCTP
-
-      Reference:            RFC 6733
-
-      Port  Number:         5868, from the User Range
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 138]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-11.5.  SCTP Payload Protocol Identifiers
-
-   Two SCTP payload protocol identifiers have been registered in the
-   SCTP Payload Protocol Identifiers registry:
-
-
-    Value | SCTP Payload Protocol Identifier
-   -------|-----------------------------------
-     46   | Diameter in a SCTP DATA chunk
-     47   | Diameter in a DTLS/SCTP DATA chunk
-
-
-11.6.  S-NAPTR Parameters
-
-   The following tag has been registered in the S-NAPTR Application
-   Protocol Tags registry:
-
-   Tag                | Protocol
-   -------------------|---------
-   diameter.dtls.sctp | DTLS/SCTP
-
-12.  Diameter Protocol-Related Configurable Parameters
-
-   This section contains the configurable parameters that are found
-   throughout this document:
-
-   Diameter Peer
-
-      A Diameter entity MAY communicate with peers that are statically
-      configured.  A statically configured Diameter peer would require
-      that either the IP address or the fully qualified domain name
-      (FQDN) be supplied, which would then be used to resolve through
-      DNS.
-
-   Routing Table
-
-      A Diameter proxy server routes messages based on the realm portion
-      of a Network Access Identifier (NAI).  The server MUST have a
-      table of Realm Names, and the address of the peer to which the
-      message must be forwarded.  The routing table MAY also include a
-      "default route", which is typically used for all messages that
-      cannot be locally processed.
-
-   Tc timer
-
-      The Tc timer controls the frequency that transport connection
-      attempts are done to a peer with whom no active transport
-      connection exists.  The recommended value is 30 seconds.
-
-
-
-Fajardo, et al.              Standards Track                  [Page 139]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-13.  Security Considerations
-
-   The Diameter base protocol messages SHOULD be secured by using TLS
-   [RFC5246] or DTLS/SCTP [RFC6083].  Additional security mechanisms
-   such as IPsec [RFC4301] MAY also be deployed to secure connections
-   between peers.  However, all Diameter base protocol implementations
-   MUST support the use of TLS/TCP and DTLS/SCTP, and the Diameter
-   protocol MUST NOT be used without one of TLS, DTLS, or IPsec.
-
-   If a Diameter connection is to be protected via TLS/TCP and DTLS/SCTP
-   or IPsec, then TLS/TCP and DTLS/SCTP or IPsec/IKE SHOULD begin prior
-   to any Diameter message exchange.  All security parameters for TLS/
-   TCP and DTLS/SCTP or IPsec are configured independent of the Diameter
-   protocol.  All Diameter messages will be sent through the TLS/TCP and
-   DTLS/SCTP or IPsec connection after a successful setup.
-
-   For TLS/TCP and DTLS/SCTP connections to be established in the open
-   state, the CER/CEA exchange MUST include an Inband-Security-ID AVP
-   with a value of TLS/TCP and DTLS/SCTP.  The TLS/TCP and DTLS/SCTP
-   handshake will begin when both ends successfully reach the open
-   state, after completion of the CER/CEA exchange.  If the TLS/TCP and
-   DTLS/SCTP handshake is successful, all further messages will be sent
-   via TLS/TCP and DTLS/SCTP.  If the handshake fails, both ends MUST
-   move to the closed state.  See Section 13.1 for more details.
-
-13.1.  TLS/TCP and DTLS/SCTP Usage
-
-   Diameter nodes using TLS/TCP and DTLS/SCTP for security MUST mutually
-   authenticate as part of TLS/TCP and DTLS/SCTP session establishment.
-   In order to ensure mutual authentication, the Diameter node acting as
-   the TLS/TCP and DTLS/SCTP server MUST request a certificate from the
-   Diameter node acting as TLS/TCP and DTLS/SCTP client, and the
-   Diameter node acting as the TLS/TCP and DTLS/SCTP client MUST be
-   prepared to supply a certificate on request.
-
-   Diameter nodes MUST be able to negotiate the following TLS/TCP and
-   DTLS/SCTP cipher suites:
-
-         TLS_RSA_WITH_RC4_128_MD5
-         TLS_RSA_WITH_RC4_128_SHA
-         TLS_RSA_WITH_3DES_EDE_CBC_SHA
-
-   Diameter nodes SHOULD be able to negotiate the following TLS/TCP and
-   DTLS/SCTP cipher suite:
-
-         TLS_RSA_WITH_AES_128_CBC_SHA
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 140]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   Note that it is quite possible that support for the
-   TLS_RSA_WITH_AES_128_CBC_SHA cipher suite will be REQUIRED at some
-   future date.  Diameter nodes MAY negotiate other TLS/TCP and DTLS/
-   SCTP cipher suites.
-
-   If public key certificates are used for Diameter security (for
-   example, with TLS), the value of the expiration times in the routing
-   and peer tables MUST NOT be greater than the expiry time in the
-   relevant certificates.
-
-13.2.  Peer-to-Peer Considerations
-
-   As with any peer-to-peer protocol, proper configuration of the trust
-   model within a Diameter peer is essential to security.  When
-   certificates are used, it is necessary to configure the root
-   certificate authorities trusted by the Diameter peer.  These root CAs
-   are likely to be unique to Diameter usage and distinct from the root
-   CAs that might be trusted for other purposes such as Web browsing.
-   In general, it is expected that those root CAs will be configured so
-   as to reflect the business relationships between the organization
-   hosting the Diameter peer and other organizations.  As a result, a
-   Diameter peer will typically not be configured to allow connectivity
-   with any arbitrary peer.  With certificate authentication, Diameter
-   peers may not be known beforehand and therefore peer discovery may be
-   required.
-
-13.3.  AVP Considerations
-
-   Diameter AVPs often contain security-sensitive data; for example,
-   user passwords and location data, network addresses and cryptographic
-   keys.  The following AVPs defined in this document are considered to
-   be security-sensitive:
-
-   o  Acct-Interim-Interval
-
-   o  Accounting-Realtime-Required
-
-   o  Acct-Multi-Session-Id
-
-   o  Accounting-Record-Number
-
-   o  Accounting-Record-Type
-
-   o  Accounting-Session-Id
-
-   o  Accounting-Sub-Session-Id
-
-   o  Class
-
-
-
-Fajardo, et al.              Standards Track                  [Page 141]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   o  Session-Id
-
-   o  Session-Binding
-
-   o  Session-Server-Failover
-
-   o  User-Name
-
-   Diameter messages containing these or any other AVPs considered to be
-   security-sensitive MUST only be sent protected via mutually
-   authenticated TLS or IPsec.  In addition, those messages MUST NOT be
-   sent via intermediate nodes unless there is end-to-end security
-   between the originator and recipient or the originator has locally
-   trusted configuration that indicates that end-to-end security is not
-   needed.  For example, end-to-end security may not be required in the
-   case where an intermediary node is known to be operated as part of
-   the same administrative domain as the endpoints so that an ability to
-   successfully compromise the intermediary would imply a high
-   probability of being able to compromise the endpoints as well.  Note
-   that no end-to-end security mechanism is specified in this document.
-
-14.  References
-
-14.1.  Normative References
-
-   [FLOATPOINT]
-              Institute of Electrical and Electronics Engineers, "IEEE
-              Standard for Binary Floating-Point Arithmetic, ANSI/IEEE
-              Standard 754-1985", August 1985.
-
-   [IANAADFAM]
-              IANA, "Address Family Numbers",
-              &lt;http://www.iana.org/assignments/address-family-numbers>.
-
-   [RFC0791]  Postel, J., "Internet Protocol", STD 5, RFC 791,
-              September 1981.
-
-   [RFC0793]  Postel, J., "Transmission Control Protocol", STD 7,
-              RFC 793, September 1981.
-
-   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
-              Requirement Levels", BCP 14, RFC 2119, March 1997.
-
-   [RFC3492]  Costello, A., "Punycode: A Bootstring encoding of Unicode
-              for Internationalized Domain Names in Applications
-              (IDNA)", RFC 3492, March 2003.
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 142]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   [RFC3539]  Aboba, B. and J. Wood, "Authentication, Authorization and
-              Accounting (AAA) Transport Profile", RFC 3539, June 2003.
-
-   [RFC3629]  Yergeau, F., "UTF-8, a transformation format of ISO
-              10646", STD 63, RFC 3629, November 2003.
-
-   [RFC3958]  Daigle, L. and A. Newton, "Domain-Based Application
-              Service Location Using SRV RRs and the Dynamic Delegation
-              Discovery Service (DDDS)", RFC 3958, January 2005.
-
-   [RFC3986]  Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform
-              Resource Identifier (URI): Generic Syntax", STD 66,
-              RFC 3986, January 2005.
-
-   [RFC4004]  Calhoun, P., Johansson, T., Perkins, C., Hiller, T., and
-              P. McCann, "Diameter Mobile IPv4 Application", RFC 4004,
-              August 2005.
-
-   [RFC4005]  Calhoun, P., Zorn, G., Spence, D., and D. Mitton,
-              "Diameter Network Access Server Application", RFC 4005,
-              August 2005.
-
-   [RFC4006]  Hakala, H., Mattila, L., Koskinen, J-P., Stura, M., and J.
-              Loughney, "Diameter Credit-Control Application", RFC 4006,
-              August 2005.
-
-   [RFC4086]  Eastlake, D., Schiller, J., and S. Crocker, "Randomness
-              Requirements for Security", BCP 106, RFC 4086, June 2005.
-
-   [RFC4282]  Aboba, B., Beadles, M., Arkko, J., and P. Eronen, "The
-              Network Access Identifier", RFC 4282, December 2005.
-
-   [RFC4291]  Hinden, R. and S. Deering, "IP Version 6 Addressing
-              Architecture", RFC 4291, February 2006.
-
-   [RFC4960]  Stewart, R., "Stream Control Transmission Protocol",
-              RFC 4960, September 2007.
-
-   [RFC5226]  Narten, T. and H. Alvestrand, "Guidelines for Writing an
-              IANA Considerations Section in RFCs", BCP 26, RFC 5226,
-              May 2008.
-
-   [RFC5234]  Crocker, D. and P. Overell, "Augmented BNF for Syntax
-              Specifications: ABNF", STD 68, RFC 5234, January 2008.
-
-   [RFC5246]  Dierks, T. and E. Rescorla, "The Transport Layer Security
-              (TLS) Protocol Version 1.2", RFC 5246, August 2008.
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 143]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   [RFC5280]  Cooper, D., Santesson, S., Farrell, S., Boeyen, S.,
-              Housley, R., and W. Polk, "Internet X.509 Public Key
-              Infrastructure Certificate and Certificate Revocation List
-              (CRL) Profile", RFC 5280, May 2008.
-
-   [RFC5729]  Korhonen, J., Jones, M., Morand, L., and T. Tsou,
-              "Clarifications on the Routing of Diameter Requests Based
-              on the Username and the Realm", RFC 5729, December 2009.
-
-   [RFC5890]  Klensin, J., "Internationalized Domain Names for
-              Applications (IDNA): Definitions and Document Framework",
-              RFC 5890, August 2010.
-
-   [RFC5891]  Klensin, J., "Internationalized Domain Names in
-              Applications (IDNA): Protocol", RFC 5891, August 2010.
-
-   [RFC6083]  Tuexen, M., Seggelmann, R., and E. Rescorla, "Datagram
-              Transport Layer Security (DTLS) for Stream Control
-              Transmission Protocol (SCTP)", RFC 6083, January 2011.
-
-   [RFC6347]  Rescorla, E. and N. Modadugu, "Datagram Transport Layer
-              Security Version 1.2", RFC 6347, January 2012.
-
-   [RFC6408]  Jones, M., Korhonen, J., and L. Morand, "Diameter
-              Straightforward-Naming Authority Pointer (S-NAPTR) Usage",
-              RFC 6408, November 2011.
-
-14.2.  Informative References
-
-   [ENTERPRISE]  IANA, "SMI Network Management Private Enterprise
-                 Codes",
-                 &lt;http://www.iana.org/assignments/enterprise-numbers>.
-
-   [IANATCV]     IANA, "Termination-Cause AVP Values (code 295)",
-                 &lt;http://www.iana.org/assignments/aaa-parameters/
-                 aaa-parameters.xml#aaa-parameters-16>.
-
-   [RFC1492]     Finseth, C., "An Access Control Protocol, Sometimes
-                 Called TACACS", RFC 1492, July 1993.
-
-   [RFC1661]     Simpson, W., "The Point-to-Point Protocol (PPP)",
-                 STD 51, RFC 1661, July 1994.
-
-   [RFC2104]     Krawczyk, H., Bellare, M., and R. Canetti, "HMAC:
-                 Keyed-Hashing for Message Authentication", RFC 2104,
-                 February 1997.
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 144]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   [RFC2782]     Gulbrandsen, A., Vixie, P., and L. Esibov, "A DNS RR
-                 for specifying the location of services (DNS SRV)",
-                 RFC 2782, February 2000.
-
-   [RFC2865]     Rigney, C., Willens, S., Rubens, A., and W. Simpson,
-                 "Remote Authentication Dial In User Service (RADIUS)",
-                 RFC 2865, June 2000.
-
-   [RFC2866]     Rigney, C., "RADIUS Accounting", RFC 2866, June 2000.
-
-   [RFC2869]     Rigney, C., Willats, W., and P. Calhoun, "RADIUS
-                 Extensions", RFC 2869, June 2000.
-
-   [RFC2881]     Mitton, D. and M. Beadles, "Network Access Server
-                 Requirements Next Generation (NASREQNG) NAS Model",
-                 RFC 2881, July 2000.
-
-   [RFC2975]     Aboba, B., Arkko, J., and D. Harrington, "Introduction
-                 to Accounting Management", RFC 2975, October 2000.
-
-   [RFC2989]     Aboba, B., Calhoun, P., Glass, S., Hiller, T., McCann,
-                 P., Shiino, H., Walsh, P., Zorn, G., Dommety, G.,
-                 Perkins, C., Patil, B., Mitton, D., Manning, S.,
-                 Beadles, M., Chen, X., Sivalingham, S., Hameed, A.,
-                 Munson, M., Jacobs, S., Lim, B., Hirschman, B., Hsu,
-                 R., Koo, H., Lipford, M., Campbell, E., Xu, Y., Baba,
-                 S., and E. Jaques, "Criteria for Evaluating AAA
-                 Protocols for Network Access", RFC 2989, November 2000.
-
-   [RFC3162]     Aboba, B., Zorn, G., and D. Mitton, "RADIUS and IPv6",
-                 RFC 3162, August 2001.
-
-   [RFC3748]     Aboba, B., Blunk, L., Vollbrecht, J., Carlson, J., and
-                 H. Levkowetz, "Extensible Authentication Protocol
-                 (EAP)", RFC 3748, June 2004.
-
-   [RFC4301]     Kent, S. and K. Seo, "Security Architecture for the
-                 Internet Protocol", RFC 4301, December 2005.
-
-   [RFC4690]     Klensin, J., Faltstrom, P., Karp, C., and IAB, "Review
-                 and Recommendations for Internationalized Domain Names
-                 (IDNs)", RFC 4690, September 2006.
-
-   [RFC5176]     Chiba, M., Dommety, G., Eklund, M., Mitton, D., and B.
-                 Aboba, "Dynamic Authorization Extensions to Remote
-                 Authentication Dial In User Service (RADIUS)",
-                 RFC 5176, January 2008.
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 145]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   [RFC5461]     Gont, F., "TCP's Reaction to Soft Errors", RFC 5461,
-                 February 2009.
-
-   [RFC5905]     Mills, D., Martin, J., Burbank, J., and W. Kasch,
-                 "Network Time Protocol Version 4: Protocol and
-                 Algorithms Specification", RFC 5905, June 2010.
-
-   [RFC5927]     Gont, F., "ICMP Attacks against TCP", RFC 5927,
-                 July 2010.
-
-   [RFC6335]     Cotton, M., Eggert, L., Touch, J., Westerlund, M., and
-                 S. Cheshire, "Internet Assigned Numbers Authority
-                 (IANA) Procedures for the Management of the Service
-                 Name and Transport Protocol Port Number Registry",
-                 BCP 165, RFC 6335, August 2011.
-
-   [RFC6737]     Kang, J. and G. Zorn, "The Diameter Capabilities Update
-                 Application", RFC 6737, October 2012.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 146]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-Appendix A.  Acknowledgements
-
-A.1.  This Document
-
-   The authors would like to thank the following people that have
-   provided proposals and contributions to this document:
-
-   To Vishnu Ram and Satendra Gera for their contributions on
-   capabilities updates, predictive loop avoidance, as well as many
-   other technical proposals.  To Tolga Asveren for his insights and
-   contributions on almost all of the proposed solutions incorporated
-   into this document.  To Timothy Smith for helping on the capabilities
-   Update and other topics.  To Tony Zhang for providing fixes to
-   loopholes on composing Failed-AVPs as well as many other issues and
-   topics.  To Jan Nordqvist for clearly stating the usage of
-   Application Ids.  To Anders Kristensen for providing needed technical
-   opinions.  To David Frascone for providing invaluable review of the
-   document.  To Mark Jones for providing clarifying text on vendor
-   command codes and other vendor-specific indicators.  To Victor
-   Pascual and Sebastien Decugis for new text and recommendations on
-   SCTP/DTLS.  To Jouni Korhonen for taking over the editing task and
-   resolving last bits from versions 27 through 29.
-
-   Special thanks to the Diameter extensibility design team, which
-   helped resolve the tricky question of mandatory AVPs and ABNF
-   semantics.  The members of this team are as follows:
-
-   Avi Lior, Jari Arkko, Glen Zorn, Lionel Morand, Mark Jones, Tolga
-   Asveren, Jouni Korhonen, and Glenn McGregor.
-
-   Special thanks also to people who have provided invaluable comments
-   and inputs especially in resolving controversial issues:
-
-   Glen Zorn, Yoshihiro Ohba, Marco Stura, Stephen Farrel, Pete Resnick,
-   Peter Saint-Andre, Robert Sparks, Krishna Prasad, Sean Turner, Barry
-   Leiba, and Pasi Eronen.
-
-   Finally, we would like to thank the original authors of this
-   document:
-
-   Pat Calhoun, John Loughney, Jari Arkko, Erik Guttman, and Glen Zorn.
-
-   Their invaluable knowledge and experience has given us a robust and
-   flexible AAA protocol that many people have seen great value in
-   adopting.  We greatly appreciate their support and stewardship for
-   the continued improvements of Diameter as a protocol.  We would also
-   like to extend our gratitude to folks aside from the authors who have
-
-
-
-
-Fajardo, et al.              Standards Track                  [Page 147]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   assisted and contributed to the original version of this document.
-   Their efforts significantly contributed to the success of Diameter.
-
-A.2.  RFC 3588
-
-   The authors would like to thank Nenad Trifunovic, Tony Johansson and
-   Pankaj Patel for their participation in the pre-IETF Document Reading
-   Party.  Allison Mankin, Jonathan Wood, and Bernard Aboba provided
-   invaluable assistance in working out transport issues and this was
-   also the case with Steven Bellovin in the security area.
-
-   Paul Funk and David Mitton were instrumental in getting the Peer
-   State Machine correct, and our deep thanks go to them for their time.
-
-   Text in this document was also provided by Paul Funk, Mark Eklund,
-   Mark Jones, and Dave Spence.  Jacques Caron provided many great
-   comments as a result of a thorough review of the spec.
-
-   The authors would also like to acknowledge the following people for
-   their contribution in the development of the Diameter protocol:
-
-   Allan C. Rubens, Haseeb Akhtar, William Bulley, Stephen Farrell,
-   David Frascone, Daniel C. Fox, Lol Grant, Ignacio Goyret, Nancy
-   Greene, Peter Heitman, Fredrik Johansson, Mark Jones, Martin Julien,
-   Bob Kopacz, Paul Krumviede, Fergal Ladley, Ryan Moats, Victor Muslin,
-   Kenneth Peirce, John Schnizlein, Sumit Vakil, John R. Vollbrecht, and
-   Jeff Weisberg.
-
-   Finally, Pat Calhoun would like to thank Sun Microsystems since most
-   of the effort put into this document was done while he was in their
-   employ.
-
-Appendix B.  S-NAPTR Example
-
-   As an example, consider a client that wishes to resolve aaa:
-   ex1.example.com.  The client performs a NAPTR query for that domain,
-   and the following NAPTR records are returned:
-
-    ;;        order pref flags service   regexp replacement
-    IN NAPTR  50    50   "s"   "aaa:diameter.tls.tcp" ""
-                 _diameter._tls.ex1.example.com
-    IN NAPTR  100   50   "s"   "aaa:diameter.tcp"     ""
-                 _aaa._tcp.ex1.example.com
-    IN NAPTR  150   50   "s"   "aaa:diameter.sctp"    ""
-                 _diameter._sctp.ex1.example.com
-
-   This indicates that the server supports TLS, TCP, and SCTP in that
-   order.  If the client supports TLS, TLS will be used, targeted to a
-
-
-
-Fajardo, et al.              Standards Track                  [Page 148]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   host determined by an SRV lookup of _diameter._tls.ex1.example.com.
-   That lookup would return:
-
-    ;;       Priority  Weight  Port    Target
-    IN SRV   0         1       5060    server1.ex1.example.com
-    IN SRV   0         2       5060    server2.ex1.example.com
-
-   As an alternative example, a client that wishes to resolve aaa:
-   ex2.example.com.  The client performs a NAPTR query for that domain,
-   and the following NAPTR records are returned:
-
-    ;;        order pref flags service   regexp replacement
-    IN NAPTR  150   50   "a"   "aaa:diameter.tls.tcp"  ""
-                 server1.ex2.example.com
-    IN NAPTR  150   50   "a"   "aaa:diameter.tls.tcp"  ""
-                 server2.ex2.example.com
-
-   This indicates that the server supports TCP available at the returned
-   host names.
-
-Appendix C.  Duplicate Detection
-
-   As described in Section 9.4, accounting record duplicate detection is
-   based on session identifiers.  Duplicates can appear for various
-   reasons:
-
-   o  Failover to an alternate server.  Where close to real-time
-      performance is required, failover thresholds need to be kept low.
-      This may lead to an increased likelihood of duplicates.  Failover
-      can occur at the client or within Diameter agents.
-
-   o  Failure of a client or agent after sending a record from non-
-      volatile memory, but prior to receipt of an application-layer ACK
-      and deletion of the record to be sent.  This will result in
-      retransmission of the record soon after the client or agent has
-      rebooted.
-
-   o  Duplicates received from RADIUS gateways.  Since the
-      retransmission behavior of RADIUS is not defined within [RFC2865],
-      the likelihood of duplication will vary according to the
-      implementation.
-
-   o  Implementation problems and misconfiguration.
-
-   The T flag is used as an indication of an application-layer
-   retransmission event, e.g., due to failover to an alternate server.
-   It is defined only for request messages sent by Diameter clients or
-   agents.  For instance, after a reboot, a client may not know whether
-
-
-
-Fajardo, et al.              Standards Track                  [Page 149]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-   it has already tried to send the accounting records in its non-
-   volatile memory before the reboot occurred.  Diameter servers MAY use
-   the T flag as an aid when processing requests and detecting duplicate
-   messages.  However, servers that do this MUST ensure that duplicates
-   are found even when the first transmitted request arrives at the
-   server after the retransmitted request.  It can be used only in cases
-   where no answer has been received from the server for a request and
-   the request is sent again, (e.g., due to a failover to an alternate
-   peer, due to a recovered primary peer or due to a client re-sending a
-   stored record from non-volatile memory such as after reboot of a
-   client or agent).
-
-   In some cases, the Diameter accounting server can delay the duplicate
-   detection and accounting record processing until a post-processing
-   phase takes place.  At that time records are likely to be sorted
-   according to the included User-Name and duplicate elimination is easy
-   in this case.  In other situations, it may be necessary to perform
-   real-time duplicate detection, such as when credit limits are imposed
-   or real-time fraud detection is desired.
-
-   In general, only generation of duplicates due to failover or re-
-   sending of records in non-volatile storage can be reliably detected
-   by Diameter clients or agents.  In such cases, the Diameter client or
-   agents can mark the message as a possible duplicate by setting the T
-   flag.  Since the Diameter server is responsible for duplicate
-   detection, it can choose whether or not to make use of the T flag, in
-   order to optimize duplicate detection.  Since the T flag does not
-   affect interoperability, and it may not be needed by some servers,
-   generation of the T flag is REQUIRED for Diameter clients and agents,
-   but it MAY be implemented by Diameter servers.
-
-   As an example, it can be usually be assumed that duplicates appear
-   within a time window of longest recorded network partition or device
-   fault, perhaps a day.  So only records within this time window need
-   to be looked at in the backward direction.  Secondly, hashing
-   techniques or other schemes, such as the use of the T flag in the
-   received messages, may be used to eliminate the need to do a full
-   search even in this set except for rare cases.
-
-   The following is an example of how the T flag may be used by the
-   server to detect duplicate requests.
-
-      A Diameter server MAY check the T flag of the received message to
-      determine if the record is a possible duplicate.  If the T flag is
-      set in the request message, the server searches for a duplicate
-      within a configurable duplication time window backward and
-      forward.  This limits database searching to those records where
-      the T flag is set.  In a well-run network, network partitions and
-
-
-
-Fajardo, et al.              Standards Track                  [Page 150]
-
-RFC 6733                 Diameter Base Protocol             October 2012
-
-
-      device faults will presumably be rare events, so this approach
-      represents a substantial optimization of the duplicate detection
-      process.  During failover, it is possible for the original record
-      to be received after the T-flag-marked record, due to differences
-      in network delays experienced along the path by the original and
-      duplicate transmissions.  The likelihood of this occurring
-      increases as the failover interval is decreased.  In order to be
-      able to detect duplicates that are out of order, the Diameter
-      server should use backward and forward time windows when
-      performing duplicate checking for the T-flag-marked request.  For
-      example, in order to allow time for the original record to exit
-      the network and be recorded by the accounting server, the Diameter
-      server can delay processing records with the T flag set until a
-      time period TIME_WAIT + RECORD_PROCESSING_TIME has elapsed after
-      the closing of the original transport connection.  After this time
-      period, it may check the T-flag-marked records against the
-      database with relative assurance that the original records, if
-      sent, have been received and recorded.
-
-Appendix D.  Internationalized Domain Names
-
-   To be compatible with the existing DNS infrastructure and simplify
-   host and domain name comparison, Diameter identities (FQDNs) are
-   represented in ASCII form.  This allows the Diameter protocol to fall
-   in-line with the DNS strategy of being transparent from the effects
-   of Internationalized Domain Names (IDNs) by following the
-   recommendations in [RFC4690] and [RFC5890].  Applications that
-   provide support for IDNs outside of the Diameter protocol but
-   interacting with it SHOULD use the representation and conversion
-   framework described in [RFC5890], [RFC5891], and [RFC3492].
-</pre>
-
-</section>
diff --git a/lib/diameter/doc/src/diameter_tcp.xml b/lib/diameter/doc/src/diameter_tcp.xml
index 6ca280c52b..9f84eeb9fd 100644
--- a/lib/diameter/doc/src/diameter_tcp.xml
+++ b/lib/diameter/doc/src/diameter_tcp.xml
@@ -27,7 +27,8 @@
 <erlref>
 <header>
 <copyright>
-<year>2011</year><year>2016</year>
+<year>2011</year>
+<year>2017</year>
 <holder>Ericsson AB. All Rights Reserved.</holder>
 </copyright>
 <legalnotice>
@@ -99,7 +100,9 @@ before configuring TLS capability on diameter transports.</p>
           | {rport, integer()}
           | {accept, Match}
           | {port, integer()}
-          | {fragment_timer, infinity | 0..16#FFFFFFFF}</v>
+          | {fragment_timer, infinity | 0..16#FFFFFFFF}
+          | {message_cb, &mod_eval;}
+          | {sender, boolean()}</v>
 <v>SslOpt = {ssl_options, true | list()}</v>
 <v>TcpOpt = term()</v>
 <v>Match = &ip_address; | string() | [Match]</v>
@@ -140,6 +143,44 @@ such a message is received over the transport interface after
 two successive timeouts without the reception of additional bytes.
 Defaults to 1000.</p>
 
+<marker id="sender"/>
+<p>
+Option <c>sender</c> specifies whether or not to use a dedicated
+process for sending outgoing messages, which avoids the possibility of
+send blocking reception.
+Defaults to <c>false</c>.
+If set to <c>true</c> then a <c>message_cb</c> that avoids the
+possibility of messages being queued in the sender process without
+bound should be configured.</p>
+
+<p>
+Option <c>message_cb</c> specifies a callback that is invoked on
+incoming and outgoing messages, that can be used to implement
+flow control.
+It is applied to two arguments: an atom indicating the
+reason for the callback (<c>send</c>, <c>recv</c>, or <c>ack</c> after
+a completed send), and the message in question (binary() on
+<c>recv</c>, binary() or diameter_packet record on <c>send</c> or
+<c>ack</c>, or <c>false</c> on <c>ack</c> when an incoming request has
+been discarded).
+It should return a list of actions and a new callback as
+tail; eg. <c>[fun cb/3, State]</c>.
+Valid actions are the atoms <c>send</c> or <c>recv</c>, to
+cause a following message-valued action to be sent/received,
+a message to send/receive (binary() or
+diameter_packet record), or a boolean() to enable/disable reading on
+the socket.
+More than one <c>send</c>/<c>recv</c>/message sequence can be
+returned from the same callback, and an initial
+<c>send</c>/<c>recv</c> can be omitted if the same as the value passed
+as the callback's first argument.
+Reading is initially enabled, and returning <c>false</c> does not
+imply there cannot be subsequent <c>recv</c> callbacks since
+messages may already have been read.
+An empty tail is equivalent to the prevailing callback.
+Defaults to a callback equivalent to <c>fun(ack, _) -> []; (_, Msg) ->
+[Msg] end</c>.</p>
+
 <p>
 Remaining options are any accepted by &ssl_connect3; or
 &gen_tcp_connect3; for
@@ -170,14 +211,11 @@ that will not be forthcoming, which will eventually cause the RFC 3539
 watchdog to take down the connection.</p>
 
 <p>
-If an <c>ip</c> option is not specified then the first element of a
-non-empty <c>Host-IP-Address</c> list in <c>Svc</c> provides the local
-IP address.
-If neither is specified then the default address selected by &gen_tcp;
-is used.
-In all cases, the selected address is either returned from
-&start; or passed in a <c>connected</c> message over the transport
-interface.</p>
+The first element of a non-empty <c>Host-IP-Address</c> list in
+<c>Svc</c> provides the local IP address if an <c>ip</c> option is not
+specified.
+The local address is either returned from&start; or passed in a
+<c>connected</c> message over the transport interface.</p>
 </desc>
 </func>
 
diff --git a/lib/diameter/doc/src/files.mk b/lib/diameter/doc/src/files.mk
index cb4f88a375..4c1297f6cc 100644
--- a/lib/diameter/doc/src/files.mk
+++ b/lib/diameter/doc/src/files.mk
@@ -2,7 +2,7 @@
 
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2010-2016. All Rights Reserved.
+# Copyright Ericsson AB 2010-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -40,8 +40,7 @@ XML_PART_FILES = \
 	user_man.xml
 
 XML_EXTRA_FILES = \
-	seealso.ent \
-	diameter_soc_rfc6733.xml
+	seealso.ent
 
 XML_CHAPTER_FILES = \
 	diameter_intro.xml \
diff --git a/lib/diameter/doc/src/notes.xml b/lib/diameter/doc/src/notes.xml
index 60478606ad..eded788419 100644
--- a/lib/diameter/doc/src/notes.xml
+++ b/lib/diameter/doc/src/notes.xml
@@ -43,6 +43,242 @@ first.</p>
 
 <!-- ===================================================================== -->
 
+<section><title>diameter 2.1.2</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    A fault introduced in diameter 2.1 could cause decode
+	    errors to be ignored in AVPs following the header of a
+	    Grouped AVP.</p>
+          <p>
+	    Own Id: OTP-14684 Aux Id: ERIERL-85 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>diameter 2.1.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    An inadvertently removed monitor in diameter 2.1 caused
+	    the ets table diameter_reg to leak entries, and caused
+	    service restart and more to fail.</p>
+          <p>
+	    Own Id: OTP-14668 Aux Id: ERIERL-83 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>diameter 2.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Fix handling of Proxy-Info in answer messages setting the
+	    E-bit.</p>
+          <p>
+	    RFC 6733 requires that Proxy-Info AVPs in an incoming
+	    request be echoed in an outgoing answer. This was not
+	    done in answers formulated by diameter; for example, as a
+	    result of a handle_request callback having returned an
+	    'answer-message' or protocol_error tuple.</p>
+          <p>
+	    Own Id: OTP-9869</p>
+        </item>
+        <item>
+          <p>
+	    React to nodeup/nodedown when sharing peer connections.</p>
+          <p>
+	    Service configuration share_peers and use_shared_peers
+	    did not respond to the coming and going of remote nodes.</p>
+          <p>
+	    Own Id: OTP-14011</p>
+        </item>
+        <item>
+          <p>
+	    Fix inappropriate message callbacks.</p>
+          <p>
+	    An incoming CER or DPR was regarded as discarded,
+	    resulting in a corresponding message callback (if
+	    configured) in diameter_tcp/sctp.</p>
+          <p>
+	    Own Id: OTP-14486</p>
+        </item>
+        <item>
+          <p>
+	    Fix handling of 5009 errors (DIAMETER_AVP_OCCURS_TOO_MANY
+	    TIMES).</p>
+          <p>
+	    RFC 6733 says that the first AVP that exceeds the bound
+	    should be reported, but the suggestions in the errors
+	    field of a diameter_packet record counted AVPs from the
+	    rear of the message, not the front. Additionally,
+	    diameter 2.0 in OTP 20.0 broke the counting by accepting
+	    one more AVP than the message grammar in question
+	    allowed.</p>
+          <p>
+	    Own Id: OTP-14512</p>
+        </item>
+        <item>
+          <p>
+	    Match case insensitively in diameter_tcp/sctp accept
+	    tuple.</p>
+          <p>
+	    Matching of remote addresses when accepting connections
+	    in a listening transport was case-sensitive, causing the
+	    semantics to change as a consequence of (kernel)
+	    OTP-13006.</p>
+          <p>
+	    Own Id: OTP-14535 Aux Id: OTP-13006 </p>
+        </item>
+        <item>
+          <p>
+	    Fix backwards incompatibility of remote send when sharing
+	    transports.</p>
+          <p>
+	    The sending of requests over a transport connection on a
+	    remote node running an older version of diameter was
+	    broken by diameter 2.0 in OTP 20.0.</p>
+          <p>
+	    Own Id: OTP-14552</p>
+        </item>
+        <item>
+          <p>
+	    Fix diameter_packet.avps decode of Grouped AVP errors in
+	    Failed-AVP.</p>
+          <p>
+	    Decode didn't produce a list of diameter_avp records, so
+	    information about faulty component AVPs was lost.</p>
+          <p>
+	    Own Id: OTP-14607</p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    Let unordered delivery be configured in diameter_sctp.</p>
+          <p>
+	    With option {unordered, boolean() | pos_integer()}, with
+	    false the default, and N equivalent to OS =&lt; N, where
+	    OS is the number of outbound streams negotiated on the
+	    association in question. If configured, unordered sending
+	    commences upon reception of a second message, outgoing
+	    messages being sent on stream 0 before this.</p>
+          <p>
+	    The default false is for backwards compatibility, but
+	    false or 1 should be set to follow RFC 6733's
+	    recommendation on the use of unordered sending to avoid
+	    head-of-line blocking. There is typically no meaningful
+	    order to preserve, since the order in which outgoing
+	    messages are received by a transport process isn't known
+	    to the sender.</p>
+          <p>
+	    Own Id: OTP-10889</p>
+        </item>
+        <item>
+          <p>
+	    Complete/simplify Standards Compliance in User's Guide.</p>
+          <p>
+	    Own Id: OTP-10927</p>
+        </item>
+        <item>
+          <p>
+	    Add service option decode_format.</p>
+          <p>
+	    To allow incoming messages to be decoded into maps or
+	    lists instead of records. Messages can be presented in
+	    any of the formats for encode.</p>
+          <p>
+	    Decode performance has also been improved.</p>
+          <p>
+	    Own Id: OTP-14511 Aux Id: OTP-14343 </p>
+        </item>
+        <item>
+          <p>
+	    Add service option traffic_counters.</p>
+          <p>
+	    To let message-related counters be disabled, which can be
+	    a performance improvement in some usecases.</p>
+          <p>
+	    Own Id: OTP-14521</p>
+        </item>
+        <item>
+          <p>
+	    Allow loopback/any as local addresses in
+	    diameter_tcp/sctp.</p>
+          <p>
+	    The atoms were implied by documentation, but not handled
+	    in code.</p>
+          <p>
+	    Own Id: OTP-14544</p>
+        </item>
+        <item>
+          <p>
+	    Add transport option strict_capx.</p>
+          <p>
+	    To allow the RFC 6733 requirement that a transport
+	    connection be closed if a message is received before
+	    capabilities exchange to be relaxed.</p>
+          <p>
+	    Own Id: OTP-14546</p>
+        </item>
+        <item>
+          <p>
+	    Be consistent with service/transport configuration.</p>
+          <p>
+	    For options for which it's meaningful, defaults values
+	    for transport options can now be configured on a service.
+	    This was previously the case only for an arbitrary subset
+	    of options.</p>
+          <p>
+	    Own Id: OTP-14555</p>
+        </item>
+        <item>
+          <p>
+	    Add service/transport option avp_dictionaries.</p>
+          <p>
+	    To provide better support for AVPs that are not defined
+	    in the application dictionary: configuring additional
+	    dictionaries in an avp_dictionaries tuple allows their
+	    AVPs to be encoded/decoded in much the same fashion as
+	    application AVPs.</p>
+          <p>
+	    The motivation is RFC 7683 Diameter Overload, Indicator
+	    Conveyance (DOIC), that defines AVPs intended to be
+	    piggybacked onto arbitrary messages. A DOIC dictionary
+	    has been included in the installation, in module
+	    diameter_gen_doic_rfc7683.</p>
+          <p>
+	    Own Id: OTP-14588</p>
+        </item>
+        <item>
+          <p>
+	    Decode application AVPs in answers setting the E-bit.</p>
+          <p>
+	    AVPs defined in the application of the message being sent
+	    were previously not decoded, only those in the common
+	    application that defines the answer-message grammar.</p>
+          <p>
+	    Own Id: OTP-14596</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>diameter 2.0</title>
 
     <section><title>Improvements and New Features</title>
diff --git a/lib/diameter/doc/src/seealso.ent b/lib/diameter/doc/src/seealso.ent
index e5c284c6e8..c5a53670d0 100644
--- a/lib/diameter/doc/src/seealso.ent
+++ b/lib/diameter/doc/src/seealso.ent
@@ -4,7 +4,7 @@
 
 %CopyrightBegin%
 
-Copyright Ericsson AB 2012-2015. All Rights Reserved.
+Copyright Ericsson AB 2012-2017. All Rights Reserved.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -53,7 +53,7 @@ significant.
 <!ENTITY mod_application_opt '<seealso marker="diameter#application_opt">diameter:application_opt()</seealso>'>
 <!ENTITY mod_call_opt '<seealso marker="diameter#call_opt">diameter:call_opt()</seealso>'>
 <!ENTITY mod_capability '<seealso marker="diameter#capability">diameter:capability()</seealso>'>
-<!ENTITY mod_evaluable '<seealso marker="diameter#evaluable">diameter:evaluable()</seealso>'>
+<!ENTITY mod_eval '<seealso marker="diameter#eval">diameter:eval()</seealso>'>
 <!ENTITY mod_peer_filter '<seealso marker="diameter#peer_filter">diameter:peer_filter()</seealso>'>
 <!ENTITY mod_service_event '<seealso marker="diameter#service_event">diameter:service_event()</seealso>'>
 <!ENTITY mod_service_event_info '<seealso marker="diameter#service_event_info">diameter:service_event_info()</seealso>'>
@@ -72,6 +72,7 @@ significant.
 <!ENTITY watchdog_timer '<seealso marker="#watchdog_timer">watchdog_timer</seealso>'>
 
 <!ENTITY mod_string_decode '<seealso marker="diameter#service_opt">diameter:service_opt()</seealso> <seealso marker="diameter#string_decode">string_decode</seealso>'>
+<!ENTITY mod_decode_format '<seealso marker="diameter#service_opt">diameter:service_opt()</seealso> <seealso marker="diameter#decode_format">decode_format</seealso>'>
 
 <!-- diameter_app -->
 
diff --git a/lib/diameter/doc/standard/rfc7683.txt b/lib/diameter/doc/standard/rfc7683.txt
new file mode 100644
index 0000000000..ab2392c6c0
--- /dev/null
+++ b/lib/diameter/doc/standard/rfc7683.txt
@@ -0,0 +1,2355 @@
+
+
+
+
+
+
+Internet Engineering Task Force (IETF)                  J. Korhonen, Ed.
+Request for Comments: 7683                          Broadcom Corporation
+Category: Standards Track                                S. Donovan, Ed.
+ISSN: 2070-1721                                              B. Campbell
+                                                                  Oracle
+                                                               L. Morand
+                                                             Orange Labs
+                                                            October 2015
+
+
+                Diameter Overload Indication Conveyance
+
+Abstract
+
+   This specification defines a base solution for Diameter overload
+   control, referred to as Diameter Overload Indication Conveyance
+   (DOIC).
+
+Status of This Memo
+
+   This is an Internet Standards Track document.
+
+   This document is a product of the Internet Engineering Task Force
+   (IETF).  It represents the consensus of the IETF community.  It has
+   received public review and has been approved for publication by the
+   Internet Engineering Steering Group (IESG).  Further information on
+   Internet Standards is available in Section 2 of RFC 5741.
+
+   Information about the current status of this document, any errata,
+   and how to provide feedback on it may be obtained at
+   http://www.rfc-editor.org/info/rfc7683.
+
+Copyright Notice
+
+   Copyright (c) 2015 IETF Trust and the persons identified as the
+   document authors.  All rights reserved.
+
+   This document is subject to BCP 78 and the IETF Trust's Legal
+   Provisions Relating to IETF Documents
+   (http://trustee.ietf.org/license-info) in effect on the date of
+   publication of this document.  Please review these documents
+   carefully, as they describe your rights and restrictions with respect
+   to this document.  Code Components extracted from this document must
+   include Simplified BSD License text as described in Section 4.e of
+   the Trust Legal Provisions and are provided without warranty as
+   described in the Simplified BSD License.
+
+
+
+
+
+Korhonen, et al.             Standards Track                    [Page 1]
+
+RFC 7683                          DOIC                      October 2015
+
+
+Table of Contents
+
+   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
+   2.  Terminology and Abbreviations . . . . . . . . . . . . . . . .   3
+   3.  Conventions Used in This Document . . . . . . . . . . . . . .   5
+   4.  Solution Overview . . . . . . . . . . . . . . . . . . . . . .   5
+     4.1.  Piggybacking  . . . . . . . . . . . . . . . . . . . . . .   6
+     4.2.  DOIC Capability Announcement  . . . . . . . . . . . . . .   7
+     4.3.  DOIC Overload Condition Reporting . . . . . . . . . . . .   9
+     4.4.  DOIC Extensibility  . . . . . . . . . . . . . . . . . . .  11
+     4.5.  Simplified Example Architecture . . . . . . . . . . . . .  12
+   5.  Solution Procedures . . . . . . . . . . . . . . . . . . . . .  12
+     5.1.  Capability Announcement . . . . . . . . . . . . . . . . .  12
+       5.1.1.  Reacting Node Behavior  . . . . . . . . . . . . . . .  13
+       5.1.2.  Reporting Node Behavior . . . . . . . . . . . . . . .  13
+       5.1.3.  Agent Behavior  . . . . . . . . . . . . . . . . . . .  14
+     5.2.  Overload Report Processing  . . . . . . . . . . . . . . .  15
+       5.2.1.  Overload Control State  . . . . . . . . . . . . . . .  15
+       5.2.2.  Reacting Node Behavior  . . . . . . . . . . . . . . .  19
+       5.2.3.  Reporting Node Behavior . . . . . . . . . . . . . . .  20
+     5.3.  Protocol Extensibility  . . . . . . . . . . . . . . . . .  22
+   6.  Loss Algorithm  . . . . . . . . . . . . . . . . . . . . . . .  23
+     6.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .  23
+     6.2.  Reporting Node Behavior . . . . . . . . . . . . . . . . .  24
+     6.3.  Reacting Node Behavior  . . . . . . . . . . . . . . . . .  24
+   7.  Attribute Value Pairs . . . . . . . . . . . . . . . . . . . .  25
+     7.1.  OC-Supported-Features AVP . . . . . . . . . . . . . . . .  25
+     7.2.  OC-Feature-Vector AVP . . . . . . . . . . . . . . . . . .  25
+     7.3.  OC-OLR AVP  . . . . . . . . . . . . . . . . . . . . . . .  26
+     7.4.  OC-Sequence-Number AVP  . . . . . . . . . . . . . . . . .  26
+     7.5.  OC-Validity-Duration AVP  . . . . . . . . . . . . . . . .  26
+     7.6.  OC-Report-Type AVP  . . . . . . . . . . . . . . . . . . .  27
+     7.7.  OC-Reduction-Percentage AVP . . . . . . . . . . . . . . .  27
+     7.8.  AVP Flag Rules  . . . . . . . . . . . . . . . . . . . . .  28
+   8.  Error Response Codes  . . . . . . . . . . . . . . . . . . . .  28
+   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  29
+     9.1.  AVP Codes . . . . . . . . . . . . . . . . . . . . . . . .  29
+     9.2.  New Registries  . . . . . . . . . . . . . . . . . . . . .  29
+   10. Security Considerations . . . . . . . . . . . . . . . . . . .  30
+     10.1.  Potential Threat Modes . . . . . . . . . . . . . . . . .  30
+     10.2.  Denial-of-Service Attacks  . . . . . . . . . . . . . . .  31
+     10.3.  Noncompliant Nodes . . . . . . . . . . . . . . . . . . .  32
+     10.4.  End-to-End Security Issues . . . . . . . . . . . . . . .  32
+   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  34
+     11.1.  Normative References . . . . . . . . . . . . . . . . . .  34
+     11.2.  Informative References . . . . . . . . . . . . . . . . .  34
+
+
+
+
+
+Korhonen, et al.             Standards Track                    [Page 2]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   Appendix A.  Issues Left for Future Specifications  . . . . . . .  35
+     A.1.  Additional Traffic Abatement Algorithms . . . . . . . . .  35
+     A.2.  Agent Overload  . . . . . . . . . . . . . . . . . . . . .  35
+     A.3.  New Error Diagnostic AVP  . . . . . . . . . . . . . . . .  35
+   Appendix B.  Deployment Considerations  . . . . . . . . . . . . .  35
+   Appendix C.  Considerations for Applications Integrating the DOIC
+                Solution . . . . . . . . . . . . . . . . . . . . . .  36
+     C.1.  Application Classification  . . . . . . . . . . . . . . .  36
+     C.2.  Implications of Application Type Overload . . . . . . . .  37
+     C.3.  Request Transaction Classification  . . . . . . . . . . .  38
+     C.4.  Request Type Overload Implications  . . . . . . . . . . .  39
+   Contributors  . . . . . . . . . . . . . . . . . . . . . . . . . .  41
+   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  42
+
+1.  Introduction
+
+   This specification defines a base solution for Diameter overload
+   control, referred to as Diameter Overload Indication Conveyance
+   (DOIC), based on the requirements identified in [RFC7068].
+
+   This specification addresses Diameter overload control between
+   Diameter nodes that support the DOIC solution.  The solution, which
+   is designed to apply to existing and future Diameter applications,
+   requires no changes to the Diameter base protocol [RFC6733] and is
+   deployable in environments where some Diameter nodes do not implement
+   the Diameter overload control solution defined in this specification.
+
+   A new application specification can incorporate the overload control
+   mechanism specified in this document by making it mandatory to
+   implement for the application and referencing this specification
+   normatively.  It is the responsibility of the Diameter application
+   designers to define how overload control mechanisms work on that
+   application.
+
+   Note that the overload control solution defined in this specification
+   does not address all the requirements listed in [RFC7068].  A number
+   of features related to overload control are left for future
+   specifications.  See Appendix A for a list of extensions that are
+   currently being considered.
+
+2.  Terminology and Abbreviations
+
+   Abatement
+
+      Reaction to receipt of an overload report resulting in a reduction
+      in traffic sent to the reporting node.  Abatement actions include
+      diversion and throttling.
+
+
+
+
+Korhonen, et al.             Standards Track                    [Page 3]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   Abatement Algorithm
+
+      An extensible method requested by reporting nodes and used by
+      reacting nodes to reduce the amount of traffic sent during an
+      occurrence of overload control.
+
+   Diversion
+
+      An overload abatement treatment where the reacting node selects
+      alternate destinations or paths for requests.
+
+   Host-Routed Requests
+
+      Requests that a reacting node knows will be served by a particular
+      host, either due to the presence of a Destination-Host Attribute
+      Value Pair (AVP) or by some other local knowledge on the part of
+      the reacting node.
+
+   Overload Control State (OCS)
+
+      Internal state maintained by a reporting or reacting node
+      describing occurrences of overload control.
+
+   Overload Report (OLR)
+
+      Overload control information for a particular overload occurrence
+      sent by a reporting node.
+
+   Reacting Node
+
+      A Diameter node that acts upon an overload report.
+
+   Realm-Routed Requests
+
+      Requests sent by a reacting node where the reacting node does not
+      know to which host the request will be routed.
+
+   Reporting Node
+
+      A Diameter node that generates an overload report.  (This may or
+      may not be the overloaded node.)
+
+
+
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                    [Page 4]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   Throttling
+
+      An abatement treatment that limits the number of requests sent by
+      the reacting node.  Throttling can include a Diameter Client
+      choosing to not send requests, or a Diameter Agent or Server
+      rejecting requests with appropriate error responses.  In both
+      cases, the result of the throttling is a permanent rejection of
+      the transaction.
+
+3.  Conventions Used in This Document
+
+   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
+   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
+   document are to be interpreted as described in RFC 2119 [RFC2119].
+
+   The interpretation from RFC 2119 [RFC2119] does not apply for the
+   above listed words when they are not used in all caps.
+
+4.  Solution Overview
+
+   The Diameter Overload Information Conveyance (DOIC) solution allows
+   Diameter nodes to request that other Diameter nodes perform overload
+   abatement actions, that is, actions to reduce the load offered to the
+   overloaded node or realm.
+
+   A Diameter node that supports DOIC is known as a "DOIC node".  Any
+   Diameter node can act as a DOIC node, including Diameter Clients,
+   Diameter Servers, and Diameter Agents.  DOIC nodes are further
+   divided into "Reporting Nodes" and "Reacting Nodes."  A reporting
+   node requests overload abatement by sending Overload Reports (OLRs).
+
+   A reacting node acts upon OLRs and performs whatever actions are
+   needed to fulfill the abatement requests included in the OLRs.  A
+   reporting node may report overload on its own behalf or on behalf of
+   other nodes.  Likewise, a reacting node may perform overload
+   abatement on its own behalf or on behalf of other nodes.
+
+   A Diameter node's role as a DOIC node is independent of its Diameter
+   role.  For example, Diameter Agents may act as DOIC nodes, even
+   though they are not endpoints in the Diameter sense.  Since Diameter
+   enables bidirectional applications, where Diameter Servers can send
+   requests towards Diameter Clients, a given Diameter node can
+   simultaneously act as both a reporting node and a reacting node.
+
+   Likewise, a Diameter Agent may act as a reacting node from the
+   perspective of upstream nodes, and a reporting node from the
+   perspective of downstream nodes.
+
+
+
+
+Korhonen, et al.             Standards Track                    [Page 5]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   DOIC nodes do not generate new messages to carry DOIC-related
+   information.  Rather, they "piggyback" DOIC information over existing
+   Diameter messages by inserting new AVPs into existing Diameter
+   requests and responses.  Nodes indicate support for DOIC, and any
+   needed DOIC parameters, by inserting an OC-Supported-Features AVP
+   (Section 7.1) into existing requests and responses.  Reporting nodes
+   send OLRs by inserting OC-OLR AVPs (Section 7.3).
+
+   A given OLR applies to the Diameter realm and application of the
+   Diameter message that carries it.  If a reporting node supports more
+   than one realm and/or application, it reports independently for each
+   combination of realm and application.  Similarly, the OC-Supported-
+   Features AVP applies to the realm and application of the enclosing
+   message.  This implies that a node may support DOIC for one
+   application and/or realm, but not another, and may indicate different
+   DOIC parameters for each application and realm for which it supports
+   DOIC.
+
+   Reacting nodes perform overload abatement according to an agreed-upon
+   abatement algorithm.  An abatement algorithm defines the meaning of
+   some of the parameters of an OLR and the procedures required for
+   overload abatement.  An overload abatement algorithm separates
+   Diameter requests into two sets.  The first set contains the requests
+   that are to undergo overload abatement treatment of either throttling
+   or diversion.  The second set contains the requests that are to be
+   given normal routing treatment.  This document specifies a single
+   "must-support" algorithm, namely, the "loss" algorithm (Section 6).
+   Future specifications may introduce new algorithms.
+
+   Overload conditions may vary in scope.  For example, a single
+   Diameter node may be overloaded, in which case, reacting nodes may
+   attempt to send requests to other destinations.  On the other hand,
+   an entire Diameter realm may be overloaded, in which case, such
+   attempts would do harm.  DOIC OLRs have a concept of "report type"
+   (Section 7.6), where the type defines such behaviors.  Report types
+   are extensible.  This document defines report types for overload of a
+   specific host and for overload of an entire realm.
+
+   DOIC works through non-supporting Diameter Agents that properly pass
+   unknown AVPs unchanged.
+
+4.1.  Piggybacking
+
+   There is no new Diameter application defined to carry overload-
+   related AVPs.  The overload control AVPs defined in this
+   specification have been designed to be piggybacked on top of existing
+
+
+
+
+
+Korhonen, et al.             Standards Track                    [Page 6]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   application messages.  This is made possible by adding the optional
+   overload control AVPs OC-OLR and OC-Supported-Features into existing
+   commands.
+
+   Reacting nodes indicate support for DOIC by including the
+   OC-Supported-Features AVP in all request messages originated or
+   relayed by the reacting node.
+
+   Reporting nodes indicate support for DOIC by including the
+   OC-Supported-Features AVP in all answer messages that are originated
+   or relayed by the reporting node and that are in response to a
+   request that contained the OC-Supported-Features AVP.  Reporting
+   nodes may include overload reports using the OC-OLR AVP in answer
+   messages.
+
+   Note that the overload control solution does not have fixed server
+   and client roles.  The DOIC node role is determined based on the
+   message type: whether the message is a request (i.e., sent by a
+   "reacting node") or an answer (i.e., sent by a "reporting node").
+   Therefore, in a typical client-server deployment, the Diameter Client
+   may report its overload condition to the Diameter Server for any
+   Diameter-Server-initiated message exchange.  An example of such is
+   the Diameter Server requesting a re-authentication from a Diameter
+   Client.
+
+4.2.  DOIC Capability Announcement
+
+   The DOIC solution supports the ability for Diameter nodes to
+   determine if other nodes in the path of a request support the
+   solution.  This capability is referred to as DOIC Capability
+   Announcement (DCA) and is separate from the Diameter Capability
+   Exchange.
+
+   The DCA mechanism uses the OC-Supported-Features AVPs to indicate the
+   Diameter overload features supported.
+
+   The first node in the path of a Diameter request that supports the
+   DOIC solution inserts the OC-Supported-Features AVP in the request
+   message.
+
+   The individual features supported by the DOIC nodes are indicated in
+   the OC-Feature-Vector AVP.  Any semantics associated with the
+   features will be defined in extension specifications that introduce
+   the features.
+
+      Note: As discussed elsewhere in the document, agents in the path
+      of the request can modify the OC-Supported-Features AVP.
+
+
+
+
+Korhonen, et al.             Standards Track                    [Page 7]
+
+RFC 7683                          DOIC                      October 2015
+
+
+      Note: The DOIC solution must support deployments where Diameter
+      Clients and/or Diameter Servers do not support the DOIC solution.
+      In this scenario, Diameter Agents that support the DOIC solution
+      may handle overload abatement for the non-supporting Diameter
+      nodes.  In this case, the DOIC agent will insert the OC-Supported-
+      Features AVP in requests that do not already contain one, telling
+      the reporting node that there is a DOIC node that will handle
+      overload abatement.  For transactions where there was an
+      OC-Supporting-Features AVP in the request, the agent will insert
+      the OC-Supported-Features AVP in answers, telling the reacting
+      node that there is a reporting node.
+
+   The OC-Feature-Vector AVP will always contain an indication of
+   support for the loss overload abatement algorithm defined in this
+   specification (see Section 6).  This ensures that a reporting node
+   always supports at least one of the advertised abatement algorithms
+   received in a request messages.
+
+   The reporting node inserts the OC-Supported-Features AVP in all
+   answer messages to requests that contained the OC-Supported-Features
+   AVP.  The contents of the reporting node's OC-Supported-Features AVP
+   indicate the set of Diameter overload features supported by the
+   reporting node.  This specification defines one exception -- the
+   reporting node only includes an indication of support for one
+   overload abatement algorithm, independent of the number of overload
+   abatement algorithms actually supported by the reacting node.  The
+   overload abatement algorithm indicated is the algorithm that the
+   reporting node intends to use should it enter an overload condition.
+   Reacting nodes can use the indicated overload abatement algorithm to
+   prepare for possible overload reports and must use the indicated
+   overload abatement algorithm if traffic reduction is actually
+   requested.
+
+      Note that the loss algorithm defined in this document is a
+      stateless abatement algorithm.  As a result, it does not require
+      any actions by reacting nodes prior to the receipt of an overload
+      report.  Stateful abatement algorithms that base the abatement
+      logic on a history of request messages sent might require reacting
+      nodes to maintain state in advance of receiving an overload report
+      to ensure that the overload reports can be properly handled.
+
+   While it should only be done in exceptional circumstances and not
+   during an active occurrence of overload, a reacting node that wishes
+   to transition to a different abatement algorithm can stop advertising
+   support for the algorithm indicated by the reporting node, as long as
+   support for the loss algorithm is always advertised.
+
+
+
+
+
+Korhonen, et al.             Standards Track                    [Page 8]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   The DCA mechanism must also allow the scenario where the set of
+   features supported by the sender of a request and by agents in the
+   path of a request differ.  In this case, the agent can update the
+   OC-Supported-Features AVP to reflect the mixture of the two sets of
+   supported features.
+
+      Note: The logic to determine if the content of the OC-Supported-
+      Features AVP should be changed is out of scope for this document,
+      as is the logic to determine the content of a modified
+      OC-Supported-Features AVP.  These are left to implementation
+      decisions.  Care must be taken not to introduce interoperability
+      issues for downstream or upstream DOIC nodes.  As such, the agent
+      must act as a fully compliant reporting node to the downstream
+      reacting node and as a fully compliant reacting node to the
+      upstream reporting node.
+
+4.3.  DOIC Overload Condition Reporting
+
+   As with DOIC capability announcement, overload condition reporting
+   uses new AVPs (Section 7.3) to indicate an overload condition.
+
+   The OC-OLR AVP is referred to as an overload report.  The OC-OLR AVP
+   includes the type of report, a sequence number, the length of time
+   that the report is valid, and AVPs specific to the abatement
+   algorithm.
+
+   Two types of overload reports are defined in this document: host
+   reports and realm reports.
+
+   A report of type "HOST_REPORT" is sent to indicate the overload of a
+   specific host, identified by the Origin-Host AVP of the message
+   containing the OLR, for the Application-ID indicated in the
+   transaction.  When receiving an OLR of type "HOST_REPORT", a reacting
+   node applies overload abatement treatment to the host-routed requests
+   identified by the overload abatement algorithm (as defined in
+   Section 2) sent for this application to the overloaded host.
+
+   A report of type "REALM_REPORT" is sent to indicate the overload of a
+   realm for the Application-ID indicated in the transaction.  The
+   overloaded realm is identified by the Destination-Realm AVP of the
+   message containing the OLR.  When receiving an OLR of type
+   "REALM_REPORT", a reacting node applies overload abatement treatment
+   to realm-routed requests identified by the overload abatement
+   algorithm (as defined in Section 2) sent for this application to the
+   overloaded realm.
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                    [Page 9]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   This document assumes that there is a single source for realm reports
+   for a given realm, or that if multiple nodes can send realm reports,
+   that each such node has full knowledge of the overload state of the
+   entire realm.  A reacting node cannot distinguish between receiving
+   realm reports from a single node or from multiple nodes.
+
+      Note: Known issues exist if there are multiple sources for
+      overload reports that apply to the same Diameter entity.  Reacting
+      nodes have no way of determining the source and, as such, will
+      treat them as coming from a single source.  Variance in sequence
+      numbers between the two sources can then cause incorrect overload
+      abatement treatment to be applied for indeterminate periods of
+      time.
+
+   Reporting nodes are responsible for determining the need for a
+   reduction of traffic.  The method for making this determination is
+   implementation specific and depends on the type of overload report
+   being generated.  A host report might be generated by tracking use of
+   resources required by the host to handle transactions for the
+   Diameter application.  A realm report generally impacts the traffic
+   sent to multiple hosts and, as such, requires tracking the capacity
+   of all servers able to handle realm-routed requests for the
+   application and realm.
+
+   Once a reporting node determines the need for a reduction in traffic,
+   it uses the DOIC-defined AVPs to report on the condition.  These AVPs
+   are included in answer messages sent or relayed by the reporting
+   node.  The reporting node indicates the overload abatement algorithm
+   that is to be used to handle the traffic reduction in the
+   OC-Supported-Features AVP.  The OC-OLR AVP is used to communicate
+   information about the requested reduction.
+
+   Reacting nodes, upon receipt of an overload report, apply the
+   overload abatement algorithm to traffic impacted by the overload
+   report.  The method used to determine the requests that are to
+   receive overload abatement treatment is dependent on the abatement
+   algorithm.  The loss abatement algorithm is defined in this document
+   (Section 6).  Other abatement algorithms can be defined in extensions
+   to the DOIC solution.
+
+   Two types of overload abatement treatment are defined, diversion and
+   throttling.  Reacting nodes are responsible for determining which
+   treatment is appropriate for individual requests.
+
+   As the conditions that lead to the generation of the overload report
+   change, the reporting node can send new overload reports requesting
+   greater reduction if the condition gets worse or less reduction if
+   the condition improves.  The reporting node sends an overload report
+
+
+
+Korhonen, et al.             Standards Track                   [Page 10]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   with a duration of zero to indicate that the overload condition has
+   ended and abatement is no longer needed.
+
+   The reacting node also determines when the overload report expires
+   based on the OC-Validity-Duration AVP in the overload report and
+   stops applying the abatement algorithm when the report expires.
+
+   Note that erroneous overload reports can be used for DoS attacks.
+   This includes the ability to indicate that a significant reduction in
+   traffic, up to and including a request for no traffic, should be sent
+   to a reporting node.  As such, care should be taken to verify the
+   sender of overload reports.
+
+4.4.  DOIC Extensibility
+
+   The DOIC solution is designed to be extensible.  This extensibility
+   is based on existing Diameter-based extensibility mechanisms, along
+   with the DOIC capability announcement mechanism.
+
+   There are multiple categories of extensions that are expected.  This
+   includes the definition of new overload abatement algorithms, the
+   definition of new report types, and the definition of new scopes of
+   messages impacted by an overload report.
+
+   A DOIC node communicates supported features by including them in the
+   OC-Feature-Vector AVP, as a sub-AVP of OC-Supported-Features.  Any
+   non-backwards-compatible DOIC extensions define new values for the
+   OC-Feature-Vector AVP.  DOIC extensions also have the ability to add
+   new AVPs to the OC-Supported-Features AVP, if additional information
+   about the new feature is required.
+
+   Overload reports can also be extended by adding new sub-AVPs to the
+   OC-OLR AVP, allowing reporting nodes to communicate additional
+   information about handling an overload condition.
+
+   If necessary, new extensions can also define new AVPs that are not
+   part of the OC-Supported-Features and OC-OLR group AVPs.  It is,
+   however, recommended that DOIC extensions use the OC-Supported-
+   Features AVP and OC-OLR AVP to carry all DOIC-related AVPs.
+
+
+
+
+
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 11]
+
+RFC 7683                          DOIC                      October 2015
+
+
+4.5.  Simplified Example Architecture
+
+   Figure 1 illustrates the simplified architecture for Diameter
+   overload information conveyance.
+
+    Realm X                                  Same or other Realms
+   <--------------------------------------> <---------------------->
+
+
+      +--------+                 : (optional) :
+      |Diameter|                 :            :
+      |Server A|--+     .--.     : +--------+ :     .--.
+      +--------+  |   _(    `.   : |Diameter| :   _(    `.   +--------+
+                  +--(        )--:-|  Agent |-:--(        )--|Diameter|
+      +--------+  | ( `  .  )  ) : +--------+ : ( `  .  )  ) | Client |
+      |Diameter|--+  `--(___.-'  :            :  `--(___.-'  +--------+
+      |Server B|                 :            :
+      +--------+                 :            :
+
+                          End-to-end Overload Indication
+             1)  <----------------------------------------------->
+                             Diameter Application Y
+
+                  Overload Indication A    Overload Indication A'
+             2)  <----------------------> <---------------------->
+                 Diameter Application Y   Diameter Application Y
+
+     Figure 1: Simplified Architecture Choices for Overload Indication
+                                 Delivery
+
+   In Figure 1, the Diameter overload indication can be conveyed (1)
+   end-to-end between servers and clients or (2) between servers and the
+   Diameter Agent inside the realm and then between the Diameter Agent
+   and the clients.
+
+5.  Solution Procedures
+
+   This section outlines the normative behavior for the DOIC solution.
+
+5.1.  Capability Announcement
+
+   This section defines DOIC Capability Announcement (DCA) behavior.
+
+      Note: This specification assumes that changes in DOIC node
+      capabilities are relatively rare events that occur as a result of
+      administrative action.  Reacting nodes ought to minimize changes
+      that force the reporting node to change the features being used,
+      especially during active overload conditions.  But even if
+
+
+
+Korhonen, et al.             Standards Track                   [Page 12]
+
+RFC 7683                          DOIC                      October 2015
+
+
+      reacting nodes avoid such changes, reporting nodes still have to
+      be prepared for them to occur.  For example, differing
+      capabilities between multiple reacting nodes may still force a
+      reporting node to select different features on a per-transaction
+      basis.
+
+5.1.1.  Reacting Node Behavior
+
+   A reacting node MUST include the OC-Supported-Features AVP in all
+   requests.  It MAY include the OC-Feature-Vector AVP, as a sub-AVP of
+   OC-Supported-Features.  If it does so, it MUST indicate support for
+   the "loss" algorithm.  If the reacting node is configured to support
+   features (including other algorithms) in addition to the loss
+   algorithm, it MUST indicate such support in an OC-Feature-Vector AVP.
+
+   An OC-Supported-Features AVP in answer messages indicates there is a
+   reporting node for the transaction.  The reacting node MAY take
+   action, for example, creating state for some stateful abatement
+   algorithm, based on the features indicated in the OC-Feature-Vector
+   AVP.
+
+      Note: The loss abatement algorithm does not require stateful
+      behavior when there is no active overload report.
+
+   Reacting nodes need to be prepared for the reporting node to change
+   selected algorithms.  This can happen at any time, including when the
+   reporting node has sent an active overload report.  The reacting node
+   can minimize the potential for changes by modifying the advertised
+   abatement algorithms sent to an overloaded reporting node to the
+   currently selected algorithm and loss (or just loss if it is the
+   currently selected algorithm).  This has the effect of limiting the
+   potential change in abatement algorithm from the currently selected
+   algorithm to loss, avoiding changes to more complex abatement
+   algorithms that require state to operate properly.
+
+5.1.2.  Reporting Node Behavior
+
+   Upon receipt of a request message, a reporting node determines if
+   there is a reacting node for the transaction based on the presence of
+   the OC-Supported-Features AVP in the request message.
+
+   If the request message contains an OC-Supported-Features AVP, then a
+   reporting node MUST include the OC-Supported-Features AVP in the
+   answer message for that transaction.
+
+      Note: Capability announcement is done on a per-transaction basis.
+      The reporting node cannot assume that the capabilities announced
+      by a reacting node will be the same between transactions.
+
+
+
+Korhonen, et al.             Standards Track                   [Page 13]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   A reporting node MUST NOT include the OC-Supported-Features AVP,
+   OC-OLR AVP, or any other overload control AVPs defined in extension
+   documents in response messages for transactions where the request
+   message does not include the OC-Supported-Features AVP.  Lack of the
+   OC-Supported-Features AVP in the request message indicates that there
+   is no reacting node for the transaction.
+
+   A reporting node knows what overload control functionality is
+   supported by the reacting node based on the content or absence of the
+   OC-Feature-Vector AVP within the OC-Supported-Features AVP in the
+   request message.
+
+   A reporting node MUST select a single abatement algorithm in the
+   OC-Feature-Vector AVP.  The abatement algorithm selected MUST
+   indicate the abatement algorithm the reporting node wants the
+   reacting node to use when the reporting node enters an overload
+   condition.
+
+   The abatement algorithm selected MUST be from the set of abatement
+   algorithms contained in the request message's OC-Feature-Vector AVP.
+
+   A reporting node that selects the loss algorithm may do so by
+   including the OC-Feature-Vector AVP with an explicit indication of
+   the loss algorithm, or it MAY omit the OC-Feature-Vector AVP.  If it
+   selects a different algorithm, it MUST include the OC-Feature-Vector
+   AVP with an explicit indication of the selected algorithm.
+
+   The reporting node SHOULD indicate support for other DOIC features
+   defined in extension documents that it supports and that apply to the
+   transaction.  It does so using the OC-Feature-Vector AVP.
+
+      Note: Not all DOIC features will apply to all Diameter
+      applications or deployment scenarios.  The features included in
+      the OC-Feature-Vector AVP are based on local policy of the
+      reporting node.
+
+5.1.3.  Agent Behavior
+
+   Diameter Agents that support DOIC can ensure that all messages
+   relayed by the agent contain the OC-Supported-Features AVP.
+
+   A Diameter Agent MAY take on reacting node behavior for Diameter
+   endpoints that do not support the DOIC solution.  A Diameter Agent
+   detects that a Diameter endpoint does not support DOIC reacting node
+   behavior when there is no OC-Supported-Features AVP in a request
+   message.
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 14]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   For a Diameter Agent to be a reacting node for a non-supporting
+   Diameter endpoint, the Diameter Agent MUST include the OC-Supported-
+   Features AVP in request messages it relays that do not contain the
+   OC-Supported-Features AVP.
+
+   A Diameter Agent MAY take on reporting node behavior for Diameter
+   endpoints that do not support the DOIC solution.  The Diameter Agent
+   MUST have visibility to all traffic destined for the non-supporting
+   host in order to become the reporting node for the Diameter endpoint.
+   A Diameter Agent detects that a Diameter endpoint does not support
+   DOIC reporting node behavior when there is no OC-Supported-Features
+   AVP in an answer message for a transaction that contained the
+   OC-Supported-Features AVP in the request message.
+
+   If a request already has the OC-Supported-Features AVP, a Diameter
+   Agent MAY modify it to reflect the features appropriate for the
+   transaction.  Otherwise, the agent relays the OC-Supported-Features
+   AVP without change.
+
+      Example: If the agent supports a superset of the features reported
+      by the reacting node, then the agent might choose, based on local
+      policy, to advertise that superset of features to the reporting
+      node.
+
+   If the Diameter Agent changes the OC-Supported-Features AVP in a
+   request message, then it is likely it will also need to modify the
+   OC-Supported-Features AVP in the answer message for the transaction.
+   A Diameter Agent MAY modify the OC-Supported-Features AVP carried in
+   answer messages.
+
+   When making changes to the OC-Supported-Features or OC-OLR AVPs, the
+   Diameter Agent needs to ensure consistency in its behavior with both
+   upstream and downstream DOIC nodes.
+
+5.2.  Overload Report Processing
+
+5.2.1.  Overload Control State
+
+   Both reacting and reporting nodes maintain Overload Control State
+   (OCS) for active overload conditions.  The following sections define
+   behavior associated with that OCS.
+
+   The contents of the OCS in the reporting node and in the reacting
+   node represent logical constructs.  The actual internal physical
+   structure of the state included in the OCS is an implementation
+   decision.
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 15]
+
+RFC 7683                          DOIC                      October 2015
+
+
+5.2.1.1.  Overload Control State for Reacting Nodes
+
+   A reacting node maintains the following OCS per supported Diameter
+   application:
+
+   o  a host-type OCS entry for each Destination-Host to which it sends
+      host-type requests and
+
+   o  a realm-type OCS entry for each Destination-Realm to which it
+      sends realm-type requests.
+
+   A host-type OCS entry is identified by the pair of Application-ID and
+   the node's DiameterIdentity.
+
+   A realm-type OCS entry is identified by the pair of Application-ID
+   and realm.
+
+   The host-type and realm-type OCS entries include the following
+   information (the actual information stored is an implementation
+   decision):
+
+   o  Sequence number (as received in OC-OLR; see Section 7.3)
+
+   o  Time of expiry (derived from OC-Validity-Duration AVP received in
+      the OC-OLR AVP and time of reception of the message carrying
+      OC-OLR AVP)
+
+   o  Selected abatement algorithm (as received in the OC-Supported-
+      Features AVP)
+
+   o  Input data that is abatement algorithm specific (as received in
+      the OC-OLR AVP -- for example, OC-Reduction-Percentage for the
+      loss abatement algorithm)
+
+5.2.1.2.  Overload Control State for Reporting Nodes
+
+   A reporting node maintains OCS entries per supported Diameter
+   application, per supported (and eventually selected) abatement
+   algorithm, and per report type.
+
+   An OCS entry is identified by the tuple of Application-ID, report
+   type, and abatement algorithm, and it includes the following
+   information (the actual information stored is an implementation
+   decision):
+
+   o  Sequence number
+
+   o  Validity duration
+
+
+
+Korhonen, et al.             Standards Track                   [Page 16]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   o  Expiration time
+
+   o  Input data that is algorithm specific (for example, the reduction
+      percentage for the loss abatement algorithm)
+
+5.2.1.3.  Reacting Node's Maintenance of Overload Control State
+
+   When a reacting node receives an OC-OLR AVP, it MUST determine if it
+   is for an existing or new overload condition.
+
+      Note: For the remainder of this section, the term "OLR" refers to
+      the combination of the contents of the received OC-OLR AVP and the
+      abatement algorithm indicated in the received OC-Supported-
+      Features AVP.
+
+   When receiving an answer message with multiple OLRs of different
+   supported report types, a reacting node MUST process each received
+   OLR.
+
+   The OLR is for an existing overload condition if a reacting node has
+   an OCS that matches the received OLR.
+
+   For a host report, this means it matches the Application-ID and the
+   host's DiameterIdentity in an existing host OCS entry.
+
+   For a realm report, this means it matches the Application-ID and the
+   realm in an existing realm OCS entry.
+
+   If the OLR is for an existing overload condition, then a reacting
+   node MUST determine if the OLR is a retransmission or an update to
+   the existing OLR.
+
+   If the sequence number for the received OLR is greater than the
+   sequence number stored in the matching OCS entry, then a reacting
+   node MUST update the matching OCS entry.
+
+   If the sequence number for the received OLR is less than or equal to
+   the sequence number in the matching OCS entry, then a reacting node
+   MUST silently ignore the received OLR.  The matching OCS MUST NOT be
+   updated in this case.
+
+   If the reacting node determines that the sequence number has rolled
+   over, then the reacting node MUST update the matching OCS entry.
+   This can be determined by recognizing that the number has changed
+   from a value within 1% of the maximum value in the OC-Sequence-Number
+   AVP to a value within 1% of the minimum value in the OC-Sequence-
+   Number AVP.
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 17]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   If the received OLR is for a new overload condition, then a reacting
+   node MUST generate a new OCS entry for the overload condition.
+
+   For a host report, this means a reacting node creates an OCS entry
+   with the Application-ID in the received message and DiameterIdentity
+   of the Origin-Host in the received message.
+
+      Note: This solution assumes that the Origin-Host AVP in the answer
+      message included by the reporting node is not changed along the
+      path to the reacting node.
+
+   For a realm report, this means a reacting node creates an OCS entry
+   with the Application-ID in the received message and realm of the
+   Origin-Realm in the received message.
+
+   If the received OLR contains a validity duration of zero ("0"), then
+   a reacting node MUST update the OCS entry as being expired.
+
+      Note: It is not necessarily appropriate to delete the OCS entry,
+      as the recommended behavior is that the reacting node slowly
+      returns to full traffic when ending an overload abatement period.
+
+   The reacting node does not delete an OCS when receiving an answer
+   message that does not contain an OC-OLR AVP (i.e., absence of OLR
+   means "no change").
+
+5.2.1.4.  Reporting Node's Maintenance of Overload Control State
+
+   A reporting node SHOULD create a new OCS entry when entering an
+   overload condition.
+
+      Note: If a reporting node knows through absence of the
+      OC-Supported-Features AVP in received messages that there are no
+      reacting nodes supporting DOIC, then the reporting node can choose
+      to not create OCS entries.
+
+   When generating a new OCS entry, the sequence number SHOULD be set to
+   zero ("0").
+
+   When generating sequence numbers for new overload conditions, the new
+   sequence number MUST be greater than any sequence number in an active
+   (unexpired) overload report for the same application and report type
+   previously sent by the reporting node.  This property MUST hold over
+   a reboot of the reporting node.
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 18]
+
+RFC 7683                          DOIC                      October 2015
+
+
+      Note: One way of addressing this over a reboot of a reporting node
+      is to use a timestamp for the first overload condition that occurs
+      after the report and to start using sequences beginning with zero
+      for subsequent overload conditions.
+
+   A reporting node MUST update an OCS entry when it needs to adjust the
+   validity duration of the overload condition at reacting nodes.
+
+      Example: If a reporting node wishes to instruct reacting nodes to
+      continue overload abatement for a longer period of time than
+      originally communicated.  This also applies if the reporting node
+      wishes to shorten the period of time that overload abatement is to
+      continue.
+
+   A reporting node MUST update an OCS entry when it wishes to adjust
+   any parameters specific to the abatement algorithm, including, for
+   example, the reduction percentage used for the loss abatement
+   algorithm.
+
+      Example: If a reporting node wishes to change the reduction
+      percentage either higher (if the overload condition has worsened)
+      or lower (if the overload condition has improved), then the
+      reporting node would update the appropriate OCS entry.
+
+   A reporting node MUST increment the sequence number associated with
+   the OCS entry anytime the contents of the OCS entry are changed.
+   This will result in a new sequence number being sent to reacting
+   nodes, instructing them to process the OC-OLR AVP.
+
+   A reporting node SHOULD update an OCS entry with a validity duration
+   of zero ("0") when the overload condition ends.
+
+      Note: If a reporting node knows that the OCS entries in the
+      reacting nodes are near expiration, then the reporting node might
+      decide not to send an OLR with a validity duration of zero.
+
+   A reporting node MUST keep an OCS entry with a validity duration of
+   zero ("0") for a period of time long enough to ensure that any
+   unexpired reacting node's OCS entry created as a result of the
+   overload condition in the reporting node is deleted.
+
+5.2.2.  Reacting Node Behavior
+
+   When a reacting node sends a request, it MUST determine if that
+   request matches an active OCS.
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 19]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   If the request matches an active OCS, then the reacting node MUST use
+   the overload abatement algorithm indicated in the OCS to determine if
+   the request is to receive overload abatement treatment.
+
+   For the loss abatement algorithm defined in this specification, see
+   Section 6 for the overload abatement algorithm logic applied.
+
+   If the overload abatement algorithm selects the request for overload
+   abatement treatment, then the reacting node MUST apply overload
+   abatement treatment on the request.  The abatement treatment applied
+   depends on the context of the request.
+
+   If diversion abatement treatment is possible (i.e., a different path
+   for the request can be selected where the overloaded node is not part
+   of the different path), then the reacting node SHOULD apply diversion
+   abatement treatment to the request.  The reacting node MUST apply
+   throttling abatement treatment to requests identified for abatement
+   treatment when diversion treatment is not possible or was not
+   applied.
+
+      Note: This only addresses the case where there are two defined
+      abatement treatments, diversion and throttling.  Any extension
+      that defines a new abatement treatment must also define its
+      interaction with existing treatments.
+
+   If the overload abatement treatment results in throttling of the
+   request and if the reacting node is an agent, then the agent MUST
+   send an appropriate error as defined in Section 8.
+
+   Diameter endpoints that throttle requests need to do so according to
+   the rules of the client application.  Those rules will vary by
+   application and are beyond the scope of this document.
+
+   In the case that the OCS entry indicated no traffic was to be sent to
+   the overloaded entity and the validity duration expires, then
+   overload abatement associated with the overload report MUST be ended
+   in a controlled fashion.
+
+5.2.3.  Reporting Node Behavior
+
+   If there is an active OCS entry, then a reporting node SHOULD include
+   the OC-OLR AVP in all answers to requests that contain the
+   OC-Supported-Features AVP and that match the active OCS entry.
+
+      Note: A request matches 1) if the Application-ID in the request
+      matches the Application-ID in any active OCS entry and 2) if the
+      report type in the OCS entry matches a report type supported by
+      the reporting node as indicated in the OC-Supported-Features AVP.
+
+
+
+Korhonen, et al.             Standards Track                   [Page 20]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   The contents of the OC-OLR AVP depend on the selected algorithm.
+
+   A reporting node MAY choose to not resend an overload report to a
+   reacting node if it can guarantee that this overload report is
+   already active in the reacting node.
+
+      Note: In some cases (e.g., when there are one or more agents in
+      the path between reporting and reacting nodes, or when overload
+      reports are discarded by reacting nodes), a reporting node may not
+      be able to guarantee that the reacting node has received the
+      report.
+
+   A reporting node MUST NOT send overload reports of a type that has
+   not been advertised as supported by the reacting node.
+
+      Note: A reacting node implicitly advertises support for the host
+      and realm report types by including the OC-Supported-Features AVP
+      in the request.  Support for other report types will be explicitly
+      indicated by new feature bits in the OC-Feature-Vector AVP.
+
+   A reporting node SHOULD explicitly indicate the end of an overload
+   occurrence by sending a new OLR with OC-Validity-Duration set to a
+   value of zero ("0").  The reporting node SHOULD ensure that all
+   reacting nodes receive the updated overload report.
+
+   A reporting node MAY rely on the OC-Validity-Duration AVP values for
+   the implicit cleanup of overload control state on the reacting node.
+
+      Note: All OLRs sent have an expiration time calculated by adding
+      the validity duration contained in the OLR to the time the message
+      was sent.  Transit time for the OLR can be safely ignored.  The
+      reporting node can ensure that all reacting nodes have received
+      the OLR by continuing to send it in answer messages until the
+      expiration time for all OLRs sent for that overload condition have
+      expired.
+
+   When a reporting node sends an OLR, it effectively delegates any
+   necessary throttling to downstream nodes.  If the reporting node also
+   locally throttles the same set of messages, the overall number of
+   throttled requests may be higher than intended.  Therefore, before
+   applying local message throttling, a reporting node needs to check if
+   these messages match existing OCS entries, indicating that these
+   messages have survived throttling applied by downstream nodes that
+   have received the related OLR.
+
+   However, even if the set of messages match existing OCS entries, the
+   reporting node can still apply other abatement methods such as
+   diversion.  The reporting node might also need to throttle requests
+
+
+
+Korhonen, et al.             Standards Track                   [Page 21]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   for reasons other than overload.  For example, an agent or server
+   might have a configured rate limit for each client and might throttle
+   requests that exceed that limit, even if such requests had already
+   been candidates for throttling by downstream nodes.  The reporting
+   node also has the option to send new OLRs requesting greater
+   reductions in traffic, reducing the need for local throttling.
+
+   A reporting node SHOULD decrease requested overload abatement
+   treatment in a controlled fashion to avoid oscillations in traffic.
+
+      Example: A reporting node might wait some period of time after
+      overload ends before terminating the OLR, or it might send a
+      series of OLRs indicating progressively less overload severity.
+
+5.3.  Protocol Extensibility
+
+   The DOIC solution can be extended.  Types of potential extensions
+   include new traffic abatement algorithms, new report types, or other
+   new functionality.
+
+   When defining a new extension that requires new normative behavior,
+   the specification must define a new feature for the OC-Feature-Vector
+   AVP.  This feature bit is used to communicate support for the new
+   feature.
+
+   The extension may define new AVPs for use in the DOIC Capability
+   Announcement and for use in DOIC overload reporting.  These new AVPs
+   SHOULD be defined to be extensions to the OC-Supported-Features or
+   OC-OLR AVPs defined in this document.
+
+   The Grouped AVP extension mechanisms defined in [RFC6733] apply.
+   This allows, for example, defining a new feature that is mandatory to
+   be understood even when piggybacked on an existing application.
+
+   When defining new report type values, the corresponding specification
+   must define the semantics of the new report types and how they affect
+   the OC-OLR AVP handling.
+
+   The OC-Supported-Feature and OC-OLR AVPs can be expanded with
+   optional sub-AVPs only if a legacy DOIC implementation can safely
+   ignore them without breaking backward compatibility for the given
+   OC-Report-Type AVP value.  Any new sub-AVPs must not require that the
+   M-bit be set.
+
+   Documents that introduce new report types must describe any
+   limitations on their use across non-supporting agents.
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 22]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   As with any Diameter specification, RFC 6733 requires all new AVPs to
+   be registered with IANA.  See Section 9 for the required procedures.
+   New features (feature bits in the OC-Feature-Vector AVP) and report
+   types (in the OC-Report-Type AVP) MUST be registered with IANA.
+
+6.  Loss Algorithm
+
+   This section documents the Diameter overload loss abatement
+   algorithm.
+
+6.1.  Overview
+
+   The DOIC specification supports the ability for multiple overload
+   abatement algorithms to be specified.  The abatement algorithm used
+   for any instance of overload is determined by the DOIC Capability
+   Announcement process documented in Section 5.1.
+
+   The loss algorithm described in this section is the default algorithm
+   that must be supported by all Diameter nodes that support DOIC.
+
+   The loss algorithm is designed to be a straightforward and stateless
+   overload abatement algorithm.  It is used by reporting nodes to
+   request a percentage reduction in the amount of traffic sent.  The
+   traffic impacted by the requested reduction depends on the type of
+   overload report.
+
+   Reporting nodes request the stateless reduction of the number of
+   requests by an indicated percentage.  This percentage reduction is in
+   comparison to the number of messages the node otherwise would send,
+   regardless of how many requests the node might have sent in the past.
+
+   From a conceptual level, the logic at the reacting node could be
+   outlined as follows.
+
+   1.  An overload report is received, and the associated OCS is either
+       saved or updated (if required) by the reacting node.
+
+   2.  A new Diameter request is generated by the application running on
+       the reacting node.
+
+   3.  The reacting node determines that an active overload report
+       applies to the request, as indicated by the corresponding OCS
+       entry.
+
+   4.  The reacting node determines if overload abatement treatment
+       should be applied to the request.  One approach that could be
+       taken for each request is to select a uniformly selected random
+       number between 1 and 100.  If the random number is less than or
+
+
+
+Korhonen, et al.             Standards Track                   [Page 23]
+
+RFC 7683                          DOIC                      October 2015
+
+
+       equal to the indicated reduction percentage, then the request is
+       given abatement treatment; otherwise, the request is given normal
+       routing treatment.
+
+6.2.  Reporting Node Behavior
+
+   The method a reporting node uses to determine the amount of traffic
+   reduction required to address an overload condition is an
+   implementation decision.
+
+   When a reporting node that has selected the loss abatement algorithm
+   determines the need to request a reduction in traffic, it includes an
+   OC-OLR AVP in answer messages as described in Section 5.2.3.
+
+   When sending the OC-OLR AVP, the reporting node MUST indicate a
+   percentage reduction in the OC-Reduction-Percentage AVP.
+
+   The reporting node MAY change the reduction percentage in subsequent
+   overload reports.  When doing so, the reporting node must conform to
+   overload report handling specified in Section 5.2.3.
+
+6.3.  Reacting Node Behavior
+
+   The method a reacting node uses to determine which request messages
+   are given abatement treatment is an implementation decision.
+
+   When receiving an OC-OLR in an answer message where the algorithm
+   indicated in the OC-Supported-Features AVP is the loss algorithm, the
+   reacting node MUST apply abatement treatment to the requested
+   percentage of request messages sent.
+
+      Note: The loss algorithm is a stateless algorithm.  As a result,
+      the reacting node does not guarantee that there will be an
+      absolute reduction in traffic sent.  Rather, it guarantees that
+      the requested percentage of new requests will be given abatement
+      treatment.
+
+   If the reacting node comes out of the 100% traffic reduction
+   (meaning, it has received an OLR indicating that no traffic should be
+   sent, as a result of the overload report timing out), the reacting
+   node sending the traffic SHOULD be conservative and, for example,
+   first send "probe" messages to learn the overload condition of the
+   overloaded node before converging to any traffic amount/rate decided
+   by the sender.  Similar concerns apply in all cases when the overload
+   report times out, unless the previous overload report stated 0%
+   reduction.
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 24]
+
+RFC 7683                          DOIC                      October 2015
+
+
+      Note: The goal of this behavior is to reduce the probability of
+      overload condition thrashing where an immediate transition from
+      100% reduction to 0% reduction results in the reporting node
+      moving quickly back into an overload condition.
+
+7.  Attribute Value Pairs
+
+   This section describes the encoding and semantics of the Diameter
+   Overload Indication Attribute Value Pairs (AVPs) defined in this
+   document.
+
+   Refer to Section 4 of [RFC6733] for more information on AVPs and AVP
+   data types.
+
+7.1.  OC-Supported-Features AVP
+
+   The OC-Supported-Features AVP (AVP Code 621) is of type Grouped and
+   serves two purposes.  First, it announces a node's support for the
+   DOIC solution in general.  Second, it contains the description of the
+   supported DOIC features of the sending node.  The OC-Supported-
+   Features AVP MUST be included in every Diameter request message a
+   DOIC supporting node sends.
+
+      OC-Supported-Features ::= < AVP Header: 621 >
+                                [ OC-Feature-Vector ]
+                              * [ AVP ]
+
+7.2.  OC-Feature-Vector AVP
+
+   The OC-Feature-Vector AVP (AVP Code 622) is of type Unsigned64 and
+   contains a 64-bit flags field of announced capabilities of a DOIC
+   node.  The value of zero (0) is reserved.
+
+   The OC-Feature-Vector sub-AVP is used to announce the DOIC features
+   supported by the DOIC node, in the form of a flag-bits field in which
+   each bit announces one feature or capability supported by the node.
+   The absence of the OC-Feature-Vector AVP in request messages
+   indicates that only the default traffic abatement algorithm described
+   in this specification is supported.  The absence of the OC-Feature-
+   Vector AVP in answer messages indicates that the default traffic
+   abatement algorithm described in this specification is selected
+   (while other traffic abatement algorithms may be supported), and no
+   features other than abatement algorithms are supported.
+
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 25]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   The following capability is defined in this document:
+
+   OLR_DEFAULT_ALGO (0x0000000000000001)
+
+      When this flag is set by the a DOIC reacting node, it means that
+      the default traffic abatement (loss) algorithm is supported.  When
+      this flag is set by a DOIC reporting node, it means that the loss
+      algorithm will be used for requested overload abatement.
+
+7.3.  OC-OLR AVP
+
+   The OC-OLR AVP (AVP Code 623) is of type Grouped and contains the
+   information necessary to convey an overload report on an overload
+   condition at the reporting node.  The application the OC-OLR AVP
+   applies to is identified by the Application-ID found in the Diameter
+   message header.  The host or realm the OC-OLR AVP concerns is
+   determined from the Origin-Host AVP and/or Origin-Realm AVP found in
+   the encapsulating Diameter command.  The OC-OLR AVP is intended to be
+   sent only by a reporting node.
+
+      OC-OLR ::= < AVP Header: 623 >
+                 < OC-Sequence-Number >
+                 < OC-Report-Type >
+                 [ OC-Reduction-Percentage ]
+                 [ OC-Validity-Duration ]
+               * [ AVP ]
+
+7.4.  OC-Sequence-Number AVP
+
+   The OC-Sequence-Number AVP (AVP Code 624) is of type Unsigned64.  Its
+   usage in the context of overload control is described in Section 5.2.
+
+   From the functionality point of view, the OC-Sequence-Number AVP is
+   used as a nonvolatile increasing counter for a sequence of overload
+   reports between two DOIC nodes for the same overload occurrence.
+   Sequence numbers are treated in a unidirectional manner, i.e., two
+   sequence numbers in each direction between two DOIC nodes are not
+   related or correlated.
+
+7.5.  OC-Validity-Duration AVP
+
+   The OC-Validity-Duration AVP (AVP Code 625) is of type Unsigned32 and
+   indicates in seconds the validity time of the overload report.  The
+   number of seconds is measured after reception of the first OC-OLR AVP
+   with a given value of OC-Sequence-Number AVP.  The default value for
+   the OC-Validity-Duration AVP is 30 seconds.  When the OC-Validity-
+   Duration AVP is not present in the OC-OLR AVP, the default value
+   applies.  The maximum value for the OC-Validity-Duration AVP is
+
+
+
+Korhonen, et al.             Standards Track                   [Page 26]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   86,400 seconds (24 hours).  If the value received in the OC-Validity-
+   Duration is greater than the maximum value, then the default value
+   applies.
+
+7.6.  OC-Report-Type AVP
+
+   The OC-Report-Type AVP (AVP Code 626) is of type Enumerated.  The
+   value of the AVP describes what the overload report concerns.  The
+   following values are initially defined:
+
+   HOST_REPORT 0
+      The overload report is for a host.  Overload abatement treatment
+      applies to host-routed requests.
+
+   REALM_REPORT 1
+      The overload report is for a realm.  Overload abatement treatment
+      applies to realm-routed requests.
+
+   The values 2-4294967295 are unassigned.
+
+7.7.  OC-Reduction-Percentage AVP
+
+   The OC-Reduction-Percentage AVP (AVP Code 627) is of type Unsigned32
+   and describes the percentage of the traffic that the sender is
+   requested to reduce, compared to what it otherwise would send.  The
+   OC-Reduction-Percentage AVP applies to the default (loss) algorithm
+   specified in this specification.  However, the AVP can be reused for
+   future abatement algorithms, if its semantics fit into the new
+   algorithm.
+
+   The value of the Reduction-Percentage AVP is between zero (0) and one
+   hundred (100).  Values greater than 100 are ignored.  The value of
+   100 means that all traffic is to be throttled, i.e., the reporting
+   node is under a severe load and ceases to process any new messages.
+   The value of 0 means that the reporting node is in a stable state and
+   has no need for the reacting node to apply any traffic abatement.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 27]
+
+RFC 7683                          DOIC                      October 2015
+
+
+7.8.  AVP Flag Rules
+
+                                                         +---------+
+                                                         |AVP flag |
+                                                         |rules    |
+                                                         +----+----+
+                              AVP   Section              |    |MUST|
+       Attribute Name         Code  Defined  Value Type  |MUST| NOT|
+      +--------------------------------------------------+----+----+
+      |OC-Supported-Features  621   7.1      Grouped     |    | V  |
+      +--------------------------------------------------+----+----+
+      |OC-Feature-Vector      622   7.2      Unsigned64  |    | V  |
+      +--------------------------------------------------+----+----+
+      |OC-OLR                 623   7.3      Grouped     |    | V  |
+      +--------------------------------------------------+----+----+
+      |OC-Sequence-Number     624   7.4      Unsigned64  |    | V  |
+      +--------------------------------------------------+----+----+
+      |OC-Validity-Duration   625   7.5      Unsigned32  |    | V  |
+      +--------------------------------------------------+----+----+
+      |OC-Report-Type         626   7.6      Enumerated  |    | V  |
+      +--------------------------------------------------+----+----+
+      |OC-Reduction                                      |    |    |
+      |  -Percentage          627   7.7      Unsigned32  |    | V  |
+      +--------------------------------------------------+----+----+
+
+   As described in the Diameter base protocol [RFC6733], the M-bit usage
+   for a given AVP in a given command may be defined by the application.
+
+8.  Error Response Codes
+
+   When a DOIC node rejects a Diameter request due to overload, the DOIC
+   node MUST select an appropriate error response code.  This
+   determination is made based on the probability of the request
+   succeeding if retried on a different path.
+
+      Note: This only applies for DOIC nodes that are not the originator
+      of the request.
+
+   A reporting node rejecting a Diameter request due to an overload
+   condition SHOULD send a DIAMETER_TOO_BUSY error response, if it can
+   assume that the same request may succeed on a different path.
+
+   If a reporting node knows or assumes that the same request will not
+   succeed on a different path, the DIAMETER_UNABLE_TO_COMPLY error
+   response SHOULD be used.  Retrying would consume valuable resources
+   during an occurrence of overload.
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 28]
+
+RFC 7683                          DOIC                      October 2015
+
+
+      For instance, if the request arrived at the reporting node without
+      a Destination-Host AVP, then the reporting node might determine
+      that there is an alternative Diameter node that could successfully
+      process the request and that retrying the transaction would not
+      negatively impact the reporting node.  DIAMETER_TOO_BUSY would be
+      sent in this case.
+
+      If the request arrived at the reporting node with a Destination-
+      Host AVP populated with its own Diameter identity, then the
+      reporting node can assume that retrying the request would result
+      in it coming to the same reporting node.
+      DIAMETER_UNABLE_TO_COMPLY would be sent in this case.
+
+      A second example is when an agent that supports the DOIC solution
+      is performing the role of a reacting node for a non-supporting
+      client.  Requests that are rejected as a result of DOIC throttling
+      by the agent in this scenario would generally be rejected with a
+      DIAMETER_UNABLE_TO_COMPLY response code.
+
+9.  IANA Considerations
+
+9.1.  AVP Codes
+
+   New AVPs defined by this specification are listed in Section 7.  All
+   AVP codes are allocated from the "AVP Codes" sub-registry under the
+   "Authentication, Authorization, and Accounting (AAA) Parameters"
+   registry.
+
+9.2.  New Registries
+
+   Two new registries have been created in the "AVP Specific Values"
+   sub-registry under the "Authentication, Authorization, and Accounting
+   (AAA) Parameters" registry.
+
+   A new "OC-Feature-Vector AVP Values (code 622)" registry has been
+   created.  This registry contains the following:
+
+      Feature Vector Value Name
+
+      Feature Vector Value
+
+      Specification defining the new value
+
+   See Section 7.2 for the initial Feature Vector Value in the registry.
+   This specification defines the value.  New values can be added to the
+   registry using the Specification Required policy [RFC5226].
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 29]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   A new "OC-Report-Type AVP Values (code 626)" registry has been
+   created.  This registry contains the following:
+
+      Report Type Value Name
+
+      Report Type Value
+
+      Specification defining the new value
+
+   See Section 7.6 for the initial assignment in the registry.  New
+   types can be added using the Specification Required policy [RFC5226].
+
+10.  Security Considerations
+
+   DOIC gives Diameter nodes the ability to request that downstream
+   nodes send fewer Diameter requests.  Nodes do this by exchanging
+   overload reports that directly effect this reduction.  This exchange
+   is potentially subject to multiple methods of attack and has the
+   potential to be used as a denial-of-service (DoS) attack vector.  For
+   instance, a series of injected realm OLRs with a requested reduction
+   percentage of 100% could be used to completely eliminate any traffic
+   from being sent to that realm.
+
+   Overload reports may contain information about the topology and
+   current status of a Diameter network.  This information is
+   potentially sensitive.  Network operators may wish to control
+   disclosure of overload reports to unauthorized parties to avoid their
+   use for competitive intelligence or to target attacks.
+
+   Diameter does not include features to provide end-to-end
+   authentication, integrity protection, or confidentiality.  This may
+   cause complications when sending overload reports between non-
+   adjacent nodes.
+
+10.1.  Potential Threat Modes
+
+   The Diameter protocol involves transactions in the form of requests
+   and answers exchanged between clients and servers.  These clients and
+   servers may be peers, that is, they may share a direct transport
+   (e.g., TCP or SCTP) connection, or the messages may traverse one or
+   more intermediaries, known as Diameter Agents.  Diameter nodes use
+   TLS, DTLS, or IPsec to authenticate peers and to provide
+   confidentiality and integrity protection of traffic between peers.
+   Nodes can make authorization decisions based on the peer identities
+   authenticated at the transport layer.
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 30]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   When agents are involved, this presents an effectively transitive
+   trust model.  That is, a Diameter client or server can authorize an
+   agent for certain actions, but it must trust that agent to make
+   appropriate authorization decisions about its peers, and so on.
+   Since confidentiality and integrity protection occur at the transport
+   layer, agents can read, and perhaps modify, any part of a Diameter
+   message, including an overload report.
+
+   There are several ways an attacker might attempt to exploit the
+   overload control mechanism.  An unauthorized third party might inject
+   an overload report into the network.  If this third party is upstream
+   of an agent, and that agent fails to apply proper authorization
+   policies, downstream nodes may mistakenly trust the report.  This
+   attack is at least partially mitigated by the assumption that nodes
+   include overload reports in Diameter answers but not in requests.
+   This requires an attacker to have knowledge of the original request
+   in order to construct an answer.  Such an answer would also need to
+   arrive at a Diameter node via a protected transport connection.
+   Therefore, implementations MUST validate that an answer containing an
+   overload report is a properly constructed response to a pending
+   request prior to acting on the overload report, and that the answer
+   was received via an appropriate transport connection.
+
+   A similar attack involves a compromised but otherwise authorized node
+   that sends an inappropriate overload report.  For example, a server
+   for the realm "example.com" might send an overload report indicating
+   that a competitor's realm "example.net" is overloaded.  If other
+   nodes act on the report, they may falsely believe that "example.net"
+   is overloaded, effectively reducing that realm's capacity.
+   Therefore, it's critical that nodes validate that an overload report
+   received from a peer actually falls within that peer's responsibility
+   before acting on the report or forwarding the report to other peers.
+   For example, an overload report from a peer that applies to a realm
+   not handled by that peer is suspect.  This may require out-of-band,
+   non-Diameter agreements and/or mechanisms.
+
+      This attack is partially mitigated by the fact that the
+      application, as well as host and realm, for a given OLR is
+      determined implicitly by respective AVPs in the enclosing answer.
+      If a reporting node modifies any of those AVPs, the enclosing
+      transaction will also be affected.
+
+10.2.  Denial-of-Service Attacks
+
+   Diameter overload reports, especially realm reports, can cause a node
+   to cease sending some or all Diameter requests for an extended
+   period.  This makes them a tempting vector for DoS attacks.
+   Furthermore, since Diameter is almost always used in support of other
+
+
+
+Korhonen, et al.             Standards Track                   [Page 31]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   protocols, a DoS attack on Diameter is likely to impact those
+   protocols as well.  In the worst case, where the Diameter application
+   is being used for access control into an IP network, a coordinated
+   DoS attack could result in the blockage of all traffic into that
+   network.  Therefore, Diameter nodes MUST NOT honor or forward OLRs
+   received from peers that are not trusted to send them.
+
+   An attacker might use the information in an OLR to assist in DoS
+   attacks.  For example, an attacker could use information about
+   current overload conditions to time an attack for maximum effect, or
+   use subsequent overload reports as a feedback mechanism to learn the
+   results of a previous or ongoing attack.  Operators need the ability
+   to ensure that OLRs are not leaked to untrusted parties.
+
+10.3.  Noncompliant Nodes
+
+   In the absence of an overload control mechanism, Diameter nodes need
+   to implement strategies to protect themselves from floods of
+   requests, and to make sure that a disproportionate load from one
+   source does not prevent other sources from receiving service.  For
+   example, a Diameter server might throttle a certain percentage of
+   requests from sources that exceed certain limits.  Overload control
+   can be thought of as an optimization for such strategies, where
+   downstream nodes never send the excess requests in the first place.
+   However, the presence of an overload control mechanism does not
+   remove the need for these other protection strategies.
+
+   When a Diameter node sends an overload report, it cannot assume that
+   all nodes will comply, even if they indicate support for DOIC.  A
+   noncompliant node might continue to send requests with no reduction
+   in load.  Such noncompliance could be done accidentally or
+   maliciously to gain an unfair advantage over compliant nodes.
+   Requirement 28 in [RFC7068] indicates that the overload control
+   solution cannot assume that all Diameter nodes in a network are
+   trusted.  It also requires that malicious nodes not be allowed to
+   take advantage of the overload control mechanism to get more than
+   their fair share of service.
+
+10.4.  End-to-End Security Issues
+
+   The lack of end-to-end integrity features makes it difficult to
+   establish trust in overload reports received from non-adjacent nodes.
+   Any agents in the message path may insert or modify overload reports.
+   Nodes must trust that their adjacent peers perform proper checks on
+   overload reports from their peers, and so on, creating a transitive-
+   trust requirement extending for potentially long chains of nodes.
+   Network operators must determine if this transitive trust requirement
+   is acceptable for their deployments.  Nodes supporting Diameter
+
+
+
+Korhonen, et al.             Standards Track                   [Page 32]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   overload control MUST give operators the ability to select which
+   peers are trusted to deliver overload reports and whether they are
+   trusted to forward overload reports from non-adjacent nodes.  DOIC
+   nodes MUST strip DOIC AVPs from messages received from peers that are
+   not trusted for DOIC purposes.
+
+   The lack of end-to-end confidentiality protection means that any
+   Diameter Agent in the path of an overload report can view the
+   contents of that report.  In addition to the requirement to select
+   which peers are trusted to send overload reports, operators MUST be
+   able to select which peers are authorized to receive reports.  A node
+   MUST NOT send an overload report to a peer not authorized to receive
+   it.  Furthermore, an agent MUST remove any overload reports that
+   might have been inserted by other nodes before forwarding a Diameter
+   message to a peer that is not authorized to receive overload reports.
+
+      A DOIC node cannot always automatically detect that a peer also
+      supports DOIC.  For example, a node might have a peer that is a
+      non-supporting agent.  If nodes on the other side of that agent
+      send OC-Supported-Features AVPs, the agent is likely to forward
+      them as unknown AVPs.  Messages received across the non-supporting
+      agent may be indistinguishable from messages received across a
+      DOIC supporting agent, giving the false impression that the non-
+      supporting agent actually supports DOIC.  This complicates the
+      transitive-trust nature of DOIC.  Operators need to be careful to
+      avoid situations where a non-supporting agent is mistakenly
+      trusted to enforce DOIC-related authorization policies.
+
+   It is expected that work on end-to-end Diameter security might make
+   it easier to establish trust in non-adjacent nodes for overload
+   control purposes.  Readers should be reminded, however, that the
+   overload control mechanism allows Diameter Agents to modify AVPs in,
+   or insert additional AVPs into, existing messages that are originated
+   by other nodes.  If end-to-end security is enabled, there is a risk
+   that such modification could violate integrity protection.  The
+   details of using any future Diameter end-to-end security mechanism
+   with overload control will require careful consideration, and are
+   beyond the scope of this document.
+
+
+
+
+
+
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 33]
+
+RFC 7683                          DOIC                      October 2015
+
+
+11.  References
+
+11.1.  Normative References
+
+   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
+              Requirement Levels", BCP 14, RFC 2119,
+              DOI 10.17487/RFC2119, March 1997,
+              <http://www.rfc-editor.org/info/rfc2119>.
+
+   [RFC5226]  Narten, T. and H. Alvestrand, "Guidelines for Writing an
+              IANA Considerations Section in RFCs", BCP 26, RFC 5226,
+              DOI 10.17487/RFC5226, May 2008,
+              <http://www.rfc-editor.org/info/rfc5226>.
+
+   [RFC6733]  Fajardo, V., Ed., Arkko, J., Loughney, J., and G. Zorn,
+              Ed., "Diameter Base Protocol", RFC 6733,
+              DOI 10.17487/RFC6733, October 2012,
+              <http://www.rfc-editor.org/info/rfc6733>.
+
+11.2.  Informative References
+
+   [Cx]       3GPP, "Cx and Dx interfaces based on the Diameter
+              protocol; Protocol details", 3GPP TS 29.229 12.7.0,
+              September 2015.
+
+   [PCC]      3GPP, "Policy and charging control architecture", 3GPP
+              TS 23.203 12.10.0, September 2015.
+
+   [RFC4006]  Hakala, H., Mattila, L., Koskinen, J-P., Stura, M., and J.
+              Loughney, "Diameter Credit-Control Application", RFC 4006,
+              DOI 10.17487/RFC4006, August 2005,
+              <http://www.rfc-editor.org/info/rfc4006>.
+
+   [RFC7068]  McMurry, E. and B. Campbell, "Diameter Overload Control
+              Requirements", RFC 7068, DOI 10.17487/RFC7068, November
+              2013, <http://www.rfc-editor.org/info/rfc7068>.
+
+   [S13]      3GPP, "Evolved Packet System (EPS); Mobility Management
+              Entity (MME) and Serving GPRS Support Node (SGSN) related
+              interfaces based on Diameter protocol", 3GPP TS 29.272
+              12.8.0, September 2015.
+
+
+
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 34]
+
+RFC 7683                          DOIC                      October 2015
+
+
+Appendix A.  Issues Left for Future Specifications
+
+   The base solution for overload control does not cover all possible
+   use cases.  A number of solution aspects were intentionally left for
+   future specification and protocol work.  The following subsections
+   define some of the potential extensions to the DOIC solution.
+
+A.1.  Additional Traffic Abatement Algorithms
+
+   This specification describes only means for a simple loss-based
+   algorithm.  Future algorithms can be added using the designed
+   solution extension mechanism.  The new algorithms need to be
+   registered with IANA.  See Sections 7.2 and 9 for the required IANA
+   steps.
+
+A.2.  Agent Overload
+
+   This specification focuses on Diameter endpoint (server or client)
+   overload.  A separate extension will be required to outline the
+   handling of the case of agent overload.
+
+A.3.  New Error Diagnostic AVP
+
+   This specification indicates the use of existing error messages when
+   nodes reject requests due to overload.  There is an expectation that
+   additional error codes or AVPs will be defined in a separate
+   specification to indicate that overload was the reason for the
+   rejection of the message.
+
+Appendix B.  Deployment Considerations
+
+   Non-supporting Agents
+
+      Due to the way that realm-routed requests are handled in Diameter
+      networks with the server selection for the request done by an
+      agent, network operators should enable DOIC at agents that perform
+      server selection first.
+
+   Topology-Hiding Interactions
+
+      There exist proxies that implement what is referred to as Topology
+      Hiding.  This can include cases where the agent modifies the
+      Origin-Host in answer messages.  The behavior of the DOIC solution
+      is not well understood when this happens.  As such, the DOIC
+      solution does not address this scenario.
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 35]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   Inter-Realm/Administrative Domain Considerations
+
+      There are likely to be special considerations for handling DOIC
+      signaling across administrative boundaries.  This includes
+      considerations for whether or not information included in the DOIC
+      signaling should be sent across those boundaries.  In addition,
+      consideration should be taken as to whether or not a reacting node
+      in one realm can be trusted to implement the requested overload
+      abatement handling for overload reports received from a separately
+      administered realm.
+
+Appendix C.  Considerations for Applications Integrating the DOIC
+             Solution
+
+   This section outlines considerations to be taken into account when
+   integrating the DOIC solution into Diameter applications.
+
+C.1.  Application Classification
+
+   The following is a classification of Diameter applications and
+   request types.  This discussion is meant to document factors that
+   play into decisions made by the Diameter entity responsible for
+   handling overload reports.
+
+   Section 8.1 of [RFC6733] defines two state machines that imply two
+   types of applications, session-less and session-based applications.
+   The primary difference between these types of applications is the
+   lifetime of Session-Ids.
+
+   For session-based applications, the Session-Id is used to tie
+   multiple requests into a single session.
+
+   The Credit-Control application defined in [RFC4006] is an example of
+   a Diameter session-based application.
+
+   In session-less applications, the lifetime of the Session-Id is a
+   single Diameter transaction, i.e., the session is implicitly
+   terminated after a single Diameter transaction and a new Session-Id
+   is generated for each Diameter request.
+
+
+
+
+
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 36]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   For the purposes of this discussion, session-less applications are
+   further divided into two types of applications:
+
+   Stateless Applications:
+
+      Requests within a stateless application have no relationship to
+      each other.  The 3GPP-defined S13 application is an example of a
+      stateless application [S13], where only a Diameter command is
+      defined between a client and a server and no state is maintained
+      between two consecutive transactions.
+
+   Pseudo-Session Applications:
+
+      Applications that do not rely on the Session-Id AVP for
+      correlation of application messages related to the same session
+      but use other session-related information in the Diameter requests
+      for this purpose.  The 3GPP-defined Cx application [Cx] is an
+      example of a pseudo-session application.
+
+   The handling of overload reports must take the type of application
+   into consideration, as discussed in Appendix C.2.
+
+C.2.  Implications of Application Type Overload
+
+   This section discusses considerations for mitigating overload
+   reported by a Diameter entity.  This discussion focuses on the type
+   of application.  Appendix C.3 discusses considerations for handling
+   various request types when the target server is known to be in an
+   overloaded state.
+
+   These discussions assume that the strategy for mitigating the
+   reported overload is to reduce the overall workload sent to the
+   overloaded entity.  The concept of applying overload treatment to
+   requests targeted for an overloaded Diameter entity is inherent to
+   this discussion.  The method used to reduce offered load is not
+   specified here, but it could include routing requests to another
+   Diameter entity known to be able to handle them, or it could mean
+   rejecting certain requests.  For a Diameter Agent, rejecting requests
+   will usually mean generating appropriate Diameter error responses.
+   For a Diameter client, rejecting requests will depend upon the
+   application.  For example, it could mean giving an indication to the
+   entity requesting the Diameter service that the network is busy and
+   to try again later.
+
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 37]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   Stateless Applications:
+
+      By definition, there is no relationship between individual
+      requests in a stateless application.  As a result, when a request
+      is sent or relayed to an overloaded Diameter entity -- either a
+      Diameter Server or a Diameter Agent -- the sending or relaying
+      entity can choose to apply the overload treatment to any request
+      targeted for the overloaded entity.
+
+   Pseudo-session Applications:
+
+      For pseudo-session applications, there is an implied ordering of
+      requests.  As a result, decisions about which requests towards an
+      overloaded entity to reject could take the command code of the
+      request into consideration.  This generally means that
+      transactions later in the sequence of transactions should be given
+      more favorable treatment than messages earlier in the sequence.
+      This is because more work has already been done by the Diameter
+      network for those transactions that occur later in the sequence.
+      Rejecting them could result in increasing the load on the network
+      as the transactions earlier in the sequence might also need to be
+      repeated.
+
+   Session-Based Applications:
+
+      Overload handling for session-based applications must take into
+      consideration the work load associated with setting up and
+      maintaining a session.  As such, the entity sending requests
+      towards an overloaded Diameter entity for a session-based
+      application might tend to reject new session requests prior to
+      rejecting intra-session requests.  In addition, session-ending
+      requests might be given a lower probability of being rejected, as
+      rejecting session-ending requests could result in session status
+      being out of sync between the Diameter clients and servers.
+      Application designers that would decide to reject mid-session
+      requests will need to consider whether the rejection invalidates
+      the session and any resulting session cleanup procedures.
+
+C.3.  Request Transaction Classification
+
+   Independent Request:
+
+      An independent request is not correlated to any other requests,
+      and, as such, the lifetime of the Session-Id is constrained to an
+      individual transaction.
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 38]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   Session-Initiating Request:
+
+      A session-initiating request is the initial message that
+      establishes a Diameter session.  The ACR message defined in
+      [RFC6733] is an example of a session-initiating request.
+
+   Correlated Session-Initiating Request:
+
+      There are cases when multiple session-initiated requests must be
+      correlated and managed by the same Diameter server.  It is notably
+      the case in the 3GPP Policy and Charging Control (PCC)
+      architecture [PCC], where multiple apparently independent Diameter
+      application sessions are actually correlated and must be handled
+      by the same Diameter server.
+
+   Intra-session Request:
+
+      An intra-session request is a request that uses the same Session-
+      Id as the one used in a previous request.  An intra-session
+      request generally needs to be delivered to the server that handled
+      the session-creating request for the session.  The STR message
+      defined in [RFC6733] is an example of an intra-session request.
+
+   Pseudo-session Requests:
+
+      Pseudo-session requests are independent requests and do not use
+      the same Session-Id but are correlated by other session-related
+      information contained in the request.  There exist Diameter
+      applications that define an expected ordering of transactions.
+      This sequencing of independent transactions results in a pseudo-
+      session.  The AIR, MAR, and SAR requests in the 3GPP-defined Cx
+      [Cx] application are examples of pseudo-session requests.
+
+C.4.  Request Type Overload Implications
+
+   The request classes identified in Appendix C.3 have implications on
+   decisions about which requests should be throttled first.  The
+   following list of request treatments regarding throttling is provided
+   as guidelines for application designers when implementing the
+   Diameter overload control mechanism described in this document.  The
+   exact behavior regarding throttling is a matter of local policy,
+   unless specifically defined for the application.
+
+   Independent Requests:
+
+      Independent requests can generally be given equal treatment when
+      making throttling decisions, unless otherwise indicated by
+      application requirements or local policy.
+
+
+
+Korhonen, et al.             Standards Track                   [Page 39]
+
+RFC 7683                          DOIC                      October 2015
+
+
+   Session-Initiating Requests:
+
+      Session-initiating requests often represent more work than
+      independent or intra-session requests.  Moreover, session-
+      initiating requests are typically followed by other session-
+      related requests.  Since the main objective of overload control is
+      to reduce the total number of requests sent to the overloaded
+      entity, throttling decisions might favor allowing intra-session
+      requests over session-initiating requests.  In the absence of
+      local policies or application-specific requirements to the
+      contrary, individual session-initiating requests can be given
+      equal treatment when making throttling decisions.
+
+   Correlated Session-Initiating Requests:
+
+      A request that results in a new binding; where the binding is used
+      for routing of subsequent session-initiating requests to the same
+      server, it represents more work load than other requests.  As
+      such, these requests might be throttled more frequently than other
+      request types.
+
+   Pseudo-session Requests:
+
+      Throttling decisions for pseudo-session requests can take into
+      consideration where individual requests fit into the overall
+      sequence of requests within the pseudo-session.  Requests that are
+      earlier in the sequence might be throttled more aggressively than
+      requests that occur later in the sequence.
+
+   Intra-session Requests:
+
+      There are two types of intra-sessions requests, requests that
+      terminate a session and the remainder of intra-session requests.
+      Implementers and operators may choose to throttle session-
+      terminating requests less aggressively in order to gracefully
+      terminate sessions, allow cleanup of the related resources (e.g.,
+      session state), and avoid the need for additional intra-session
+      requests.  Favoring session termination requests may reduce the
+      session management impact on the overloaded entity.  The default
+      handling of other intra-session requests might be to treat them
+      equally when making throttling decisions.  There might also be
+      application-level considerations whether some request types are
+      favored over others.
+
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 40]
+
+RFC 7683                          DOIC                      October 2015
+
+
+Contributors
+
+   The following people contributed substantial ideas, feedback, and
+   discussion to this document:
+
+   o  Eric McMurry
+
+   o  Hannes Tschofenig
+
+   o  Ulrich Wiehe
+
+   o  Jean-Jacques Trottin
+
+   o  Maria Cruz Bartolome
+
+   o  Martin Dolly
+
+   o  Nirav Salot
+
+   o  Susan Shishufeng
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 41]
+
+RFC 7683                          DOIC                      October 2015
+
+
+Authors' Addresses
+
+   Jouni Korhonen (editor)
+   Broadcom Corporation
+   3151 Zanker Road
+   San Jose, CA  95134
+   United States
+
+   Email: [email protected]
+
+
+   Steve Donovan (editor)
+   Oracle
+   7460 Warren Parkway
+   Frisco, Texas  75034
+   United States
+
+   Email: [email protected]
+
+
+   Ben Campbell
+   Oracle
+   7460 Warren Parkway
+   Frisco, Texas  75034
+   United States
+
+   Email: [email protected]
+
+
+   Lionel Morand
+   Orange Labs
+   38/40 rue du General Leclerc
+   Issy-Les-Moulineaux Cedex 9  92794
+   France
+
+   Phone: +33145296257
+   Email: [email protected]
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Korhonen, et al.             Standards Track                   [Page 42]
+
diff --git a/lib/diameter/examples/code/client.erl b/lib/diameter/examples/code/client.erl
index 6fb90b1c09..0864919cdd 100644
--- a/lib/diameter/examples/code/client.erl
+++ b/lib/diameter/examples/code/client.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -39,7 +39,6 @@
 -module(client).
 
 -include_lib("diameter/include/diameter.hrl").
--include_lib("diameter/include/diameter_gen_base_rfc6733.hrl").
 
 -export([start/1,     %% start a service
          start/2,     %%
@@ -71,6 +70,7 @@
                         {'Product-Name', "Client"},
                         {'Auth-Application-Id', [0]},
                         {string_decode, false},
+                        {decode_format, map},
                         {application, [{alias, common},
                                        {dictionary, diameter_gen_base_rfc6733},
                                        {module, client_cb}]}]).
@@ -108,9 +108,9 @@ connect(T) ->
 
 call(Name) ->
     SId = diameter:session_id(?L(Name)),
-    RAR = #diameter_base_RAR{'Session-Id' = SId,
-                             'Auth-Application-Id' = 0,
-                             'Re-Auth-Request-Type' = 0},
+    RAR = ['RAR' | #{'Session-Id' => SId,
+                     'Auth-Application-Id' => 0,
+                     'Re-Auth-Request-Type' => 0}],
     diameter:call(Name, common, RAR, []).
 
 call() ->
diff --git a/lib/diameter/examples/code/client_cb.erl b/lib/diameter/examples/code/client_cb.erl
index ed1d3b9b7b..af2d4d6da7 100644
--- a/lib/diameter/examples/code/client_cb.erl
+++ b/lib/diameter/examples/code/client_cb.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2010-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -55,21 +55,18 @@ prepare_request(#diameter_packet{msg = ['RAR' = T | Avps]}, _, {_, Caps}) ->
                    origin_realm = {OR, DR}}
         = Caps,
 
-    {send, [T, {'Origin-Host', OH},
-               {'Origin-Realm', OR},
-               {'Destination-Host', DH},
-               {'Destination-Realm', DR}
-             | Avps]};
-
-prepare_request(#diameter_packet{msg = Rec}, _, {_, Caps}) ->
-    #diameter_caps{origin_host = {OH, DH},
-                   origin_realm = {OR, DR}}
-        = Caps,
-
-    {send, Rec#diameter_base_RAR{'Origin-Host' = OH,
-                                 'Origin-Realm' = OR,
-                                 'Destination-Host' = DH,
-                                 'Destination-Realm' = DR}}.
+    {send, [T | if is_map(Avps) ->
+                        Avps#{'Origin-Host' => OH,
+                              'Origin-Realm' => OR,
+                              'Destination-Host' => DH,
+                              'Destination-Realm' => DR};
+                   is_list(Avps) ->
+                        [{'Origin-Host', OH},
+                         {'Origin-Realm', OR},
+                         {'Destination-Host', DH},
+                         {'Destination-Realm', DR}
+                         | Avps]
+                end]}.
 
 %% prepare_retransmit/3
 
diff --git a/lib/diameter/src/Makefile b/lib/diameter/src/Makefile
index 6bf748a727..3af856f63e 100644
--- a/lib/diameter/src/Makefile
+++ b/lib/diameter/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2010-2016. All Rights Reserved.
+# Copyright Ericsson AB 2010-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -274,9 +274,7 @@ gen/diameter_gen_base_accounting.erl gen/diameter_gen_base_accounting.hrl: \
 gen/diameter_gen_acct_rfc6733.erl gen/diameter_gen_acct_rfc6733.hrl: \
 	$(EBIN)/diameter_gen_base_rfc6733.$(EMULATOR)
 
-gen/diameter_gen_relay.erl gen/diameter_gen_relay.hrl \
-gen/diameter_gen_base_rfc3588.erl gen/diameter_gen_base_rfc3588.hrl \
-gen/diameter_gen_base_rfc6733.erl gen/diameter_gen_base_rfc6733.hrl: \
+$(DICT_ERLS) $(DICT_HRLS): \
 	$(COMPILER_MODULES:%=$(EBIN)/%.$(EMULATOR))
 
 $(DICT_MODULES:gen/%=$(EBIN)/%.$(EMULATOR)): \
diff --git a/lib/diameter/src/base/diameter.erl b/lib/diameter/src/base/diameter.erl
index 2e18a1d903..b90b794611 100644
--- a/lib/diameter/src/base/diameter.erl
+++ b/lib/diameter/src/base/diameter.erl
@@ -46,7 +46,8 @@
 -export([start/0,
          stop/0]).
 
--export_type([evaluable/0,
+-export_type([eval/0,
+              evaluable/0,  %% deprecated
               decode_format/0,
               strict_arities/0,
               restriction/0,
@@ -301,7 +302,7 @@ call(SvcName, App, Message) ->
     | realm
     | {host,  any|'DiameterIdentity'()}
     | {realm, any|'DiameterIdentity'()}
-    | {eval, evaluable()}
+    | {eval, eval()}
     | {neg, peer_filter()}
     | {all, [peer_filter()]}
     | {any, [peer_filter()]}.
@@ -309,10 +310,13 @@ call(SvcName, App, Message) ->
 -opaque peer_ref()
    :: pid().
 
--type evaluable()
+-type eval()
    :: {module(), atom(), list()}
     | fun()
-    | maybe_improper_list(evaluable(), list()).
+    | maybe_improper_list(eval(), list()).
+
+-type evaluable()
+   :: eval().
 
 -type sequence()
    :: {'Unsigned32'(), 0..32}.
@@ -322,12 +326,12 @@ call(SvcName, App, Message) ->
     | node
     | nodes
     | [node()]
-    | evaluable().
+    | eval().
 
 -type remotes()
    :: boolean()
     | [node()]
-    | evaluable().
+    | eval().
 
 -type message_length()
    :: 0..16#FFFFFF.
@@ -336,7 +340,7 @@ call(SvcName, App, Message) ->
    :: record
     | list
     | map
-    | false
+    | none
     | record_from_map.
 
 -type strict_arities()
@@ -344,22 +348,39 @@ call(SvcName, App, Message) ->
     | encode
     | decode.
 
+%% Options common to both start_service/2 and add_transport/2.
+
+-type common_opt()
+   :: {pool_size, pos_integer()}
+    | {capabilities_cb, eval()}
+    | {capx_timeout, 'Unsigned32'()}
+    | {strict_capx, boolean()}
+    | {strict_mbit, boolean()}
+    | {avp_dictionaries, [module()]}
+    | {disconnect_cb, eval()}
+    | {dpr_timeout, 'Unsigned32'()}
+    | {dpa_timeout, 'Unsigned32'()}
+    | {incoming_maxlen, message_length()}
+    | {length_errors, exit | handle | discard}
+    | {connect_timer, 'Unsigned32'()}
+    | {watchdog_timer, 'Unsigned32'() | {module(), atom(), list()}}
+    | {watchdog_config, [{okay|suspect, non_neg_integer()}]}
+    | {spawn_opt, list()}.
+
 %% Options passed to start_service/2
 
 -type service_opt()
    :: capability()
     | {application, [application_opt()]}
     | {restrict_connections, restriction()}
-    | {sequence, sequence() | evaluable()}
+    | {sequence, sequence() | eval()}
     | {share_peers, remotes()}
     | {decode_format, decode_format()}
     | {traffic_counters, boolean()}
     | {string_decode, boolean()}
     | {strict_arities, true | strict_arities()}
-    | {strict_mbit, boolean()}
-    | {incoming_maxlen, message_length()}
     | {use_shared_peers, remotes()}
-    | {spawn_opt, list()}.
+    | common_opt().
 
 -type application_opt()
    :: {alias, app_alias()}
@@ -389,20 +410,9 @@ call(SvcName, App, Message) ->
    :: {transport_module, atom()}
     | {transport_config, any()}
     | {transport_config, any(), 'Unsigned32'() | infinity}
-    | {pool_size, pos_integer()}
     | {applications, [app_alias()]}
     | {capabilities, [capability()]}
-    | {capabilities_cb, evaluable()}
-    | {capx_timeout, 'Unsigned32'()}
-    | {capx_strictness, boolean()}
-    | {disconnect_cb, evaluable()}
-    | {dpr_timeout, 'Unsigned32'()}
-    | {dpa_timeout, 'Unsigned32'()}
-    | {length_errors, exit | handle | discard}
-    | {connect_timer, 'Unsigned32'()}
-    | {watchdog_timer, 'Unsigned32'() | {module(), atom(), list()}}
-    | {watchdog_config, [{okay|suspect, non_neg_integer()}]}
-    | {spawn_opt, list()}
+    | common_opt()
     | {private, any()}.
 
 %% Predicate passed to remove_transport/2
diff --git a/lib/diameter/src/base/diameter_callback.erl b/lib/diameter/src/base/diameter_callback.erl
index f9cdc66c70..d04a416bef 100644
--- a/lib/diameter/src/base/diameter_callback.erl
+++ b/lib/diameter/src/base/diameter_callback.erl
@@ -26,16 +26,16 @@
 %% as the Diameter application callback in question. The record has
 %% one field for each callback function as well as 'default' and
 %% 'extra' fields. A function-specific field can be set to a
-%% diameter:evaluable() in order to redirect the callback
+%% diameter:eval() in order to redirect the callback
 %% corresponding to that field, or to 'false' to request the default
 %% callback implemented in this module. If neither of these fields are
 %% set then the 'default' field determines the form of the callback: a
 %% module name results in the usual callback as if the module had been
-%% configured directly as the callback module, a diameter_evaluable()
+%% configured directly as the callback module, a diameter_eval()
 %% in a callback applied to the atom-valued callback name and argument
 %% list. For all callbacks not to this module, the 'extra' field is a
 %% list of additional arguments, following arguments supplied by
-%% diameter but preceding those of the diameter:evaluable() being
+%% diameter but preceding those of the diameter:eval() being
 %% applied.
 %%
 %% For example, the following config to diameter:start_service/2, in
diff --git a/lib/diameter/src/base/diameter_codec.erl b/lib/diameter/src/base/diameter_codec.erl
index 63e39b12d1..2dd2c906a2 100644
--- a/lib/diameter/src/base/diameter_codec.erl
+++ b/lib/diameter/src/base/diameter_codec.erl
@@ -324,7 +324,7 @@ decode_avps(MsgName, Mod, AppMod, Opts, #diameter_packet{bin = Bin} = Pkt) ->
     {_, Avps} = split_binary(Bin, 20),
     {Rec, As, Errors} = Mod:decode_avps(MsgName,
                                         Avps,
-                                        Opts#{dictionary => AppMod,
+                                        Opts#{app_dictionary => AppMod,
                                               failed_avp => false}),
     ?LOGC([] /= Errors, decode_errors, Pkt#diameter_packet.header),
     Pkt#diameter_packet{msg = reformat(MsgName, Rec, Opts),
@@ -614,8 +614,8 @@ pack_avp(#diameter_avp{data = {T, {Type, Value}}}, Opts) ->
 pack_avp(#diameter_avp{data = {T, Data}}, _) ->
     pack_data(T, Data);
 
-pack_avp(#diameter_avp{data = {Dict, Name, Data}}, Opts) ->
-    pack_data(Dict:avp_header(Name), Dict:avp(encode, Data, Name, Opts));
+pack_avp(#diameter_avp{data = {Dict, Name, Value}}, Opts) ->
+    pack_data(Dict:avp_header(Name), Dict:avp(encode, Value, Name, Opts));
 
 %% ... with a truncated header ...
 pack_avp(#diameter_avp{code = undefined, data = B}, _)
diff --git a/lib/diameter/src/base/diameter_config.erl b/lib/diameter/src/base/diameter_config.erl
index f1b6e56782..90a9282349 100644
--- a/lib/diameter/src/base/diameter_config.erl
+++ b/lib/diameter/src/base/diameter_config.erl
@@ -102,9 +102,6 @@
 -record(monitor, {mref = make_ref() :: reference(),
                   service}). %% name
 
-%% The default sequence mask.
--define(NOMASK, {0,32}).
-
 %% Time to lay low before restarting a dead service.
 -define(RESTART_SLEEP, 2000).
 
@@ -560,87 +557,186 @@ add(SvcName, Type, Opts0) ->
     end.
 
 transport_opts(Opts) ->
-    lists:map(fun topt/1, Opts).
+    [setopt(transport, T) || T <- Opts].
+
+%% setopt/2
 
-topt(T) ->
-    case opt(T) of
+setopt(K, T) ->
+    case opt(K, T) of
         {value, X} ->
             X;
         true ->
             T;
         false ->
-            ?THROW({invalid, T})
+            ?THROW({invalid, T});
+        {error, Reason} ->
+            ?THROW({invalid, T, Reason})
     end.
 
-opt({transport_module, M}) ->
+%% opt/2
+
+opt(_, {incoming_maxlen, N}) ->
+    is_integer(N) andalso 0 =< N andalso N < 1 bsl 24;
+
+opt(service, {K, B})
+  when K == string_decode;
+       K == traffic_counters ->
+    is_boolean(B);
+
+opt(service, {K, false})
+  when K == share_peers;
+       K == use_shared_peers;
+       K == monitor;
+       K == restrict_connections;
+       K == strict_arities ->
+    true;
+
+opt(service, {K, true})
+  when K == share_peers;
+       K == use_shared_peers;
+       K == strict_arities ->
+    true;
+
+opt(service, {decode_format, T})
+  when T == record;
+       T == list;
+       T == map;
+       T == none;
+       T == record_from_map ->
+    true;
+
+opt(service, {strict_arities, T})
+  when T == encode;
+       T == decode ->
+    true;
+
+opt(service, {restrict_connections, T})
+  when T == node;
+       T == nodes ->
+    true;
+
+opt(service, {K, T})
+  when (K == share_peers
+        orelse K == use_shared_peers
+        orelse K == restrict_connections), ([] == T
+                                            orelse is_atom(hd(T))) ->
+    true;
+
+opt(service, {monitor, P}) ->
+    is_pid(P);
+
+opt(service, {K, F})
+  when K == restrict_connections;
+       K == share_peers;
+       K == use_shared_peers ->
+    try diameter_lib:eval(F) of  %% but no guarantee that it won't fail later
+        Nodes ->
+            is_list(Nodes) orelse {error, Nodes}
+    catch
+        E:R ->
+            {error, {E, R, ?STACK}}
+    end;
+
+opt(service, {sequence, {H,N}}) ->
+    0 =< N andalso N =< 32
+        andalso is_integer(H)
+        andalso 0 =< H
+        andalso 0 == H bsr (32-N);
+
+opt(service = S, {sequence = K, F}) ->
+    try diameter_lib:eval(F) of
+        {_,_} = T ->
+            KT = {K,T},
+            opt(S, KT) andalso {value, KT};
+        V ->
+            {error, V}
+    catch
+        E:R ->
+            {error, {E, R, ?STACK}}
+    end;
+
+opt(transport, {transport_module, M}) ->
     is_atom(M);
 
-opt({transport_config, _, Tmo}) ->
+opt(transport, {transport_config, _, Tmo}) ->
     ?IS_UINT32(Tmo) orelse Tmo == infinity;
 
-opt({applications, As}) ->
+opt(transport, {applications, As}) ->
     is_list(As);
 
-opt({capabilities, Os}) ->
-    is_list(Os) andalso ok == encode_CER(Os);
+opt(transport, {capabilities, Os}) ->
+    is_list(Os) andalso try ok = encode_CER(Os), true
+                        catch ?FAILURE(No) -> {error, No}
+                        end;
 
-opt({K, Tmo})
+opt(_, {K, Tmo})
   when K == capx_timeout;
        K == dpr_timeout;
        K == dpa_timeout ->
     ?IS_UINT32(Tmo);
 
-opt({capx_strictness, B}) ->
+opt(_, {capx_strictness, B}) ->
+    is_boolean(B) andalso {value, {strict_capx, B}};
+opt(_, {K, B})
+  when K == strict_capx;
+       K == strict_mbit ->
     is_boolean(B);
 
-opt({length_errors, T}) ->
+opt(_, {avp_dictionaries, Mods}) ->
+    is_list(Mods) andalso lists:all(fun erlang:is_atom/1, Mods);
+
+opt(_, {length_errors, T}) ->
     lists:member(T, [exit, handle, discard]);
 
-opt({K, Tmo})
-  when K == reconnect_timer;  %% deprecated
-       K == connect_timer ->
+opt(transport, {reconnect_timer, Tmo}) ->  %% deprecated
+    ?IS_UINT32(Tmo) andalso {value, {connect_timer, Tmo}};
+opt(_, {connect_timer, Tmo}) ->
     ?IS_UINT32(Tmo);
 
-opt({watchdog_timer, {M,F,A}})
+opt(_, {watchdog_timer, {M,F,A}})
   when is_atom(M), is_atom(F), is_list(A) ->
     true;
-opt({watchdog_timer, Tmo}) ->
+opt(_, {watchdog_timer, Tmo}) ->
     ?IS_UINT32(Tmo);
 
-opt({watchdog_config, L}) ->
-    is_list(L) andalso lists:all(fun wdopt/1, L);
+opt(_, {watchdog_config, L}) ->
+    is_list(L) andalso lists:all(fun wd/1, L);
 
-opt({spawn_opt, {M,F,A}})
+opt(_, {spawn_opt, {M,F,A}})
   when is_atom(M), is_atom(F), is_list(A) ->
     true;
-opt({spawn_opt = K, Opts}) ->
+opt(_, {spawn_opt = K, Opts}) ->
     if is_list(Opts) ->
             {value, {K, spawn_opts(Opts)}};
        true ->
             false
     end;
 
-opt({pool_size, N}) ->
+opt(_, {pool_size, N}) ->
     is_integer(N) andalso 0 < N;
 
-%% Options that we can't validate.
-opt({K, _})
+%% Options we can't validate.
+opt(_, {K, _})
+  when K == disconnect_cb;
+       K == capabilities_cb ->
+    true;
+opt(transport, {K, _})
   when K == transport_config;
-       K == capabilities_cb;
-       K == disconnect_cb;
        K == private ->
     true;
 
-%% Anything else, which is ignored by us. This makes options sensitive
-%% to spelling mistakes but arbitrary options are passed by some users
-%% as a way to identify transports. (That is, can't just do away with
-%% it.)
-opt(_) ->
-    true.
+%% Anything else, which is ignored in transport config. This makes
+%% options sensitive to spelling mistakes, but arbitrary options are
+%% passed by some users as a way to identify transports so can't just
+%% do away with it.
+opt(K, _) ->
+    K == transport.
+
+%% wd/1
 
-wdopt({K,N}) ->
+wd({K,N}) ->
     (K == okay orelse K == suspect) andalso is_integer(N) andalso 0 =< N;
-wdopt(_) ->
+wd(_) ->
     false.
 
 %% start_transport/2
@@ -705,19 +801,7 @@ make_config(SvcName, Opts) ->
 
     ok = encode_CER(CapOpts),
 
-    SvcOpts = make_opts((Opts -- AppOpts) -- CapOpts,
-                        [{false, share_peers},
-                         {false, use_shared_peers},
-                         {false, monitor},
-                         {?NOMASK, sequence},
-                         {nodes, restrict_connections},
-                         {16#FFFFFF, incoming_maxlen},
-                         {true, strict_arities},
-                         {true, strict_mbit},
-                         {record, decode_format},
-                         {true, traffic_counters},
-                         {true, string_decode},
-                         {[], spawn_opt}]),
+    SvcOpts = service_opts((Opts -- AppOpts) -- CapOpts),
 
     D = proplists:get_value(string_decode, SvcOpts, true),
 
@@ -731,115 +815,22 @@ binary_caps(Caps, true) ->
 binary_caps(Caps, false) ->
     diameter_capx:binary_caps(Caps).
 
-%% make_opts/2
+%% service_opts/1
 
-make_opts(Opts, Defs) ->
-    Known = [{K, get_opt(K, Opts, D)} || {D,K} <- Defs],
-    Unknown = Opts -- Known,
-
-    [] == Unknown orelse ?THROW({invalid, hd(Unknown)}),
-
-    [{K, opt(K,V)} || {K,V} <- Known].
-
-opt(incoming_maxlen, N)
-  when 0 =< N, N < 1 bsl 24 ->
-    N;
-
-opt(spawn_opt, {M,F,A} = T)
-  when is_atom(M), is_atom(F), is_list(A) ->
-    T;
-
-opt(spawn_opt, L)
-  when is_list(L) ->
-    spawn_opts(L);
-
-opt(K, false = B)
-  when K == share_peers;
-       K == use_shared_peers;
-       K == monitor;
-       K == restrict_connections;
-       K == strict_arities;
-       K == strict_mbit;
-       K == decode_format;
-       K == traffic_counters;
-       K == string_decode ->
-    B;
-
-opt(K, true = B)
-  when K == share_peers;
-       K == use_shared_peers;
-       K == strict_arities;
-       K == strict_mbit;
-       K == traffic_counters;
-       K == string_decode ->
-    B;
-
-opt(decode_format, T)
-  when T == record;
-       T == list;
-       T == map;
-       T == record_from_map ->
-    T;
-
-opt(strict_arities, T)
-  when T == encode;
-       T == decode ->
-    T;
-
-opt(restrict_connections, T)
-  when T == node;
-       T == nodes ->
-    T;
-
-opt(K, T)
-  when (K == share_peers
-        orelse K == use_shared_peers
-        orelse K == restrict_connections), ([] == T
-                                            orelse is_atom(hd(T))) ->
-    T;
-
-opt(monitor, P)
-  when is_pid(P) ->
-    P;
-
-opt(K, F)
-  when K == restrict_connections;
-       K == share_peers;
-       K == use_shared_peers ->
-    try diameter_lib:eval(F) of  %% but no guarantee that it won't fail later
-        Nodes when is_list(Nodes) ->
-            F;
-        V ->
-            ?THROW({value, {K,V}})
-    catch
-        E:R ->
-            ?THROW({value, {K, E, R, ?STACK}})
-    end;
-
-opt(sequence, {_,_} = T) ->
-    sequence(T);
-
-opt(sequence = K, F) ->
-    try diameter_lib:eval(F) of
-        T -> sequence(T)
-    catch
-        E:R ->
-            ?THROW({value, {K, E, R, ?STACK}})
-    end;
-
-opt(K, _) ->
-    ?THROW({value, K}).
+service_opts(Opts) ->
+    Res = [setopt(service, T) || T <- Opts],
+    Keys = sets:to_list(sets:from_list([K || {K,_} <- Res])), %% unique
+    Dups = lists:foldl(fun(K,A) -> lists:keydelete(K, 1, A) end, Res, Keys),
+    [] == Dups orelse ?THROW({duplicate, Dups}),
+    Res.
+%% Reject duplicates on a service, but not on a transport. There's no
+%% particular reason for the inconsistency, but the historic behaviour
+%% ignores all but the first of a transport_opt(), and there's no real
+%% reason to change it.
 
 spawn_opts(L) ->
     [T || T <- L, T /= link, T /= monitor].
 
-sequence({H,N} = T)
-  when 0 =< N, N =< 32, 0 =< H, 0 == H bsr (32-N) ->
-    T;
-
-sequence(_) ->
-    ?THROW({value, sequence}).
-
 make_caps(Caps, Opts) ->
     case diameter_capx:make_caps(Caps, Opts) of
         {ok, T} ->
diff --git a/lib/diameter/src/base/diameter_gen.erl b/lib/diameter/src/base/diameter_gen.erl
index 7a1a46ec52..93ebe57685 100644
--- a/lib/diameter/src/base/diameter_gen.erl
+++ b/lib/diameter/src/base/diameter_gen.erl
@@ -45,7 +45,7 @@
 -define(THROW(T), throw({?MODULE, T})).
 
 -type parent_name()   :: atom().  %% parent = Message or AVP
--type parent_record() :: tuple(). %%
+-type parent_record() :: tuple() | avp_values() | map().
 -type avp_name()   :: atom().
 -type avp_record() :: tuple().
 -type avp_values() :: [{avp_name(), term()}].
@@ -61,9 +61,7 @@
 %% # encode_avps/3
 %% ---------------------------------------------------------------------------
 
--spec encode_avps(parent_name(),
-                  parent_record() | avp_values() | map(),
-                  map())
+-spec encode_avps(parent_name(), parent_record(), map())
    -> iolist()
     | no_return().
 
@@ -102,73 +100,73 @@ encode(Name, Vals, Opts, Strict, Mod)
 
 encode(Name, Map, Opts, Strict, Mod)
   when is_map(Map) ->
-    [enc(Name, F, A, V, Opts, Strict, Mod) || {F,A} <- Mod:avp_arity(Name),
-                                              V <- [mget(F, Map, undefined)]];
+    [enc(F, A, V, Opts, Strict, Mod) || {F,A} <- Mod:avp_arity(Name),
+                                        V <- [mget(F, Map, undefined)]];
 
 encode(Name, Rec, Opts, Strict, Mod) ->
     [encode(Name, F, V, Opts, Strict, Mod) || {F,V} <- Mod:'#get-'(Rec)].
 
 %% encode/6
 
-encode(Name, AvpName, Values, Opts, Strict, Mod)
+encode(_, AvpName, Values, Opts, Strict, Mod)
   when Strict /= encode ->
-    enc(Name, AvpName, ?ANY, Values, Opts, Strict, Mod);
+    enc(AvpName, ?ANY, Values, Opts, Strict, Mod);
 
 encode(Name, AvpName, Values, Opts, Strict, Mod) ->
     Arity = Mod:avp_arity(Name, AvpName),
-    enc(Name, AvpName, Arity, Values, Opts, Strict, Mod).
+    enc(AvpName, Arity, Values, Opts, Strict, Mod).
 
-%% enc/7
+%% enc/6
 
-enc(Name, AvpName, Arity, Values, Opts, Strict, Mod)
+enc(AvpName, Arity, Values, Opts, Strict, Mod)
   when Strict /= encode, Arity /= ?ANY ->
-    enc(Name, AvpName, ?ANY, Values, Opts, Strict, Mod);
+    enc(AvpName, ?ANY, Values, Opts, Strict, Mod);
 
-enc(_, AvpName, 1, undefined, _, _, _) ->
+enc(AvpName, 1, undefined, _, _, _) ->
     ?THROW([mandatory_avp_missing, AvpName]);
 
-enc(Name, AvpName, 1, Value, Opts, _, Mod) ->
+enc(AvpName, 1, Value, Opts, _, Mod) ->
     H = avp_header(AvpName, Mod),
-    enc1(Name, AvpName, H, Value, Opts, Mod);
+    enc(AvpName, H, Value, Opts, Mod);
 
-enc(_, _, {0,_}, [], _, _, _) ->
+enc(_, {0,_}, [], _, _, _) ->
     [];
 
-enc(_, _, _, undefined, _, _, _) ->
+enc(_, _, undefined, _, _, _) ->
     [];
 
 %% Be forgiving when a list of values is expected. If the value itself
 %% is a list then the user has to wrap it to avoid each member from
 %% being interpreted as an individual AVP value.
-enc(Name, AvpName, Arity, V, Opts, Strict, Mod)
+enc(AvpName, Arity, V, Opts, Strict, Mod)
   when not is_list(V) ->
-    enc(Name, AvpName, Arity, [V], Opts, Strict, Mod);
+    enc(AvpName, Arity, [V], Opts, Strict, Mod);
 
-enc(Name, AvpName, {Min, Max}, Values, Opts, Strict, Mod) ->
+enc(AvpName, {Min, Max}, Values, Opts, Strict, Mod) ->
     H = avp_header(AvpName, Mod),
-    enc(Name, AvpName, H, Min, 0, Max, Values, Opts, Strict, Mod).
+    enc(AvpName, H, Min, 0, Max, Values, Opts, Strict, Mod).
 
-%% enc/10
+%% enc/9
 
-enc(Name, AvpName, H, Min, N, Max, Vs, Opts, Strict, Mod)
+enc(AvpName, H, Min, N, Max, Vs, Opts, Strict, Mod)
   when Strict /= encode;
        Max == '*', Min =< N ->
-    [enc1(Name, AvpName, H, V, Opts, Mod) || V <- Vs];
+    [enc(AvpName, H, V, Opts, Mod) || V <- Vs];
 
-enc(_, AvpName, _, Min, N, _, [], _, _, _)
+enc(AvpName, _, Min, N, _, [], _, _, _)
   when N < Min ->
     ?THROW([repeated_avp_insufficient_arity, AvpName, Min, N]);
 
-enc(_, _, _, _, _, _, [], _, _, _) ->
+enc(_, _, _, _, _, [], _, _, _) ->
     [];
 
-enc(_, AvpName, _, _, N, Max, _, _, _, _)
+enc(AvpName, _, _, N, Max, _, _, _, _)
   when Max =< N ->
     ?THROW([repeated_avp_excessive_arity, AvpName, Max]);
 
-enc(Name, AvpName, H, Min, N, Max, [V|Vs], Opts, Strict, Mod) ->
-    [enc1(Name, AvpName, H, V, Opts, Mod)
-     | enc(Name, AvpName, H, Min, N+1, Max, Vs, Opts, Strict, Mod)].
+enc(AvpName, H, Min, N, Max, [V|Vs], Opts, Strict, Mod) ->
+    [enc(AvpName, H, V, Opts, Mod)
+     | enc(AvpName, H, Min, N+1, Max, Vs, Opts, Strict, Mod)].
 
 %% avp_header/2
 
@@ -178,12 +176,12 @@ avp_header('AVP', _) ->
 avp_header(AvpName, Mod) ->
     {_,_,_} = Mod:avp_header(AvpName).
 
-%% enc1/6
+%% enc/5
 
-enc1(Name, 'AVP', false, Value, Opts, Mod) ->
-    enc_AVP(Name, Value, Opts, Mod);
+enc('AVP', false, Value, Opts, Mod) ->
+    enc_AVP(Value, Opts, Mod);
 
-enc1(_, AvpName, Hdr, Value, Opts, Mod) ->
+enc(AvpName, Hdr, Value, Opts, Mod) ->
     enc1(AvpName, Hdr, Value, Opts, Mod).
 
 %% enc1/5
@@ -191,54 +189,72 @@ enc1(_, AvpName, Hdr, Value, Opts, Mod) ->
 enc1(AvpName, {_,_,_} = Hdr, Value, Opts, Mod) ->
     diameter_codec:pack_data(Hdr, Mod:avp(encode, Value, AvpName, Opts)).
 
-%% enc_AVP/4
+%% enc1/6
+
+enc1(AvpName, {_,_,_} = Hdr, Value, Opts, Mod, Dict) ->
+    diameter_codec:pack_data(Hdr, avp(encode, Value, AvpName, Opts, Mod, Dict)).
+
+%% enc_AVP/3
 
 %% No value: assume AVP data is already encoded. The normal case will
 %% be when this is passed back from #diameter_packet.errors as a
 %% consequence of a failed decode. Any AVP can be encoded this way
 %% however, which side-steps any arity checks for known AVP's and
 %% could potentially encode something unfortunate.
-enc_AVP(_, #diameter_avp{value = undefined} = A, Opts, _) ->
+enc_AVP(#diameter_avp{value = undefined} = A, Opts, _) ->
     diameter_codec:pack_avp(A, Opts);
 
-%% Missing name for value encode.
-enc_AVP(_, #diameter_avp{name = N, value = V}, _, _)
-  when N == undefined;
-       N == 'AVP' ->
-    ?THROW([value_with_nameless_avp, N, V]);
+%% Encode a name/value pair using an alternate dictionary if need be ...
+enc_AVP(#diameter_avp{name = AvpName, value = Value}, Opts, Mod) ->
+    enc_AVP(AvpName, Value, Opts, Mod);
+enc_AVP({AvpName, Value}, Opts, Mod) ->
+    enc_AVP(AvpName, Value, Opts, Mod);
+
+%% ... or with a specified dictionary.
+enc_AVP({Dict, AvpName, Value}, Opts, Mod) ->
+    enc1(AvpName, Dict:avp_header(AvpName), Value, Opts, Mod, Dict).
 
-%% Or not. Ensure that 'AVP' is the appropriate field. Note that if we
-%% don't know this AVP at all then the encode will fail.
-enc_AVP(Name, #diameter_avp{name = AvpName, value = Data}, Opts, Mod) ->
-    0 == Mod:avp_arity(Name, AvpName)
-        orelse ?THROW([known_avp_as_AVP, Name, AvpName, Data]),
-    enc(AvpName, Data, Opts, Mod);
+%% Don't guard against anything being sent as a generic 'AVP', which
+%% allows arity restrictions to be abused.
+
+%% enc_AVP/4
 
-%% The backdoor ...
-enc_AVP(_, {AvpName, Value}, Opts, Mod) ->
-    enc(AvpName, Value, Opts, Mod);
+enc_AVP(AvpName, Value, Opts, Mod) ->
+    try Mod:avp_header(AvpName) of
+        H ->
+            enc1(AvpName, H, Value, Opts, Mod)
+    catch
+        error: _ ->
+            Dicts = mget(avp_dictionaries, Opts, []),
+            enc_AVP(Dicts, AvpName, Value, Opts, Mod)
+    end.
 
-%% ... and the side door.
-enc_AVP(_Name, {_Dict, _AvpName, _Data} = T, Opts, _) ->
-    diameter_codec:pack_avp(#diameter_avp{data = T}, Opts).
+%% enc_AVP/5
 
-%% enc/4
+enc_AVP([Dict | Rest], AvpName, Value, Opts, Mod) ->
+    try Dict:avp_header(AvpName) of
+        H ->
+            enc1(AvpName, H, Value, Opts, Mod, Dict)
+    catch
+        error: _ ->
+            enc_AVP(Rest, AvpName, Value, Opts, Mod)
+    end;
 
-enc(AvpName, Value, Opts, Mod) ->
-    enc1(AvpName, Mod:avp_header(AvpName), Value, Opts, Mod).
+enc_AVP([], AvpName, _, _, _) ->
+    ?THROW([no_dictionary, AvpName]).
 
 %% ---------------------------------------------------------------------------
 %% # decode_avps/3
 %% ---------------------------------------------------------------------------
 
 -spec decode_avps(parent_name(), binary(), map())
-   -> {parent_record(), [avp()], Failed}
+   -> {parent_record() | parent_name(), [avp()], Failed}
  when Failed :: [{5000..5999, #diameter_avp{}}].
 
 decode_avps(Name, Bin, #{module := Mod, decode_format := Fmt} = Opts) ->
     Strict = mget(strict_arities, Opts, decode),
     [AM, Avps, Failed | Rec]
-        = decode(Bin, Name, Mod, Fmt, Strict, Opts, #{}),
+        = decode(Bin, Name, Mod, Fmt, Strict, Opts, 0, #{}),
     %% AM counts the number of top-level AVPs, which missing/5 then
     %% uses when appending 5005 errors.
     {reformat(Name, Rec, Strict, Mod, Fmt),
@@ -249,7 +265,7 @@ decode_avps(Name, Bin, #{module := Mod, decode_format := Fmt} = Opts) ->
 %% encountered. Failed-AVP should typically contain the first
 %% error encountered.
 
-%% decode/7
+%% decode/8
 
 decode(<<Code:32, V:1, M:1, P:1, _:5, Len:24, I:V/unit:32, Rest/binary>>,
        Name,
@@ -257,6 +273,7 @@ decode(<<Code:32, V:1, M:1, P:1, _:5, Len:24, I:V/unit:32, Rest/binary>>,
        Fmt,
        Strict,
        Opts,
+       Idx,
        AM) ->
     decode(Rest,
            Code,
@@ -270,21 +287,23 @@ decode(<<Code:32, V:1, M:1, P:1, _:5, Len:24, I:V/unit:32, Rest/binary>>,
            Fmt,
            Strict,
            Opts,
+           Idx,
            AM);
 
-decode(<<>>, Name, Mod, Fmt, Strict, _, AM) ->
+decode(<<>>, Name, Mod, Fmt, Strict, _, _, AM) ->
     [AM, [], [] | newrec(Fmt, Mod, Name, Strict)];
 
-decode(Bin, Name, Mod, Fmt, Strict, _, AM) ->
-    Avp = #diameter_avp{data = Bin},
+decode(Bin, Name, Mod, Fmt, Strict, _, Idx, AM) ->
+    Avp = #diameter_avp{data = Bin, index = Idx},
     [AM, [Avp], [{5014, Avp}] | newrec(Fmt, Mod, Name, Strict)].
 
-%% decode/13
+%% decode/14
 
-decode(Bin, Code, Vid, DataLen, Pad, M, P, Name, Mod, Fmt, Strict, Opts0, AM0) ->
+decode(Bin, Code, Vid, DataLen, Pad, M, P, Name, Mod, Fmt, Strict, Opts0,
+       Idx, AM0) ->
     case Bin of
         <<Data:DataLen/binary, _:Pad/binary, T/binary>> ->
-            {NameT, AvpName, Arity, {Idx, AM}}
+            {NameT, Field, Arity, {I, AM}}
                 = incr(Name, Code, Vid, M, Mod, Strict, Opts0, AM0),
 
             Opts = setopts(NameT, Name, M, Opts0),
@@ -300,11 +319,11 @@ decode(Bin, Code, Vid, DataLen, Pad, M, P, Name, Mod, Fmt, Strict, Opts0, AM0) -
                                 type = type(NameT),
                                 index = Idx},
 
-            Dec = decode(Data, Name, NameT, Mod, Opts, Avp),    %% decode
-            Acc = decode(T, Name, Mod, Fmt, Strict, Opts, AM),  %% recurse
-            acc(Acc, Dec, Name, AvpName, Arity, Strict, Mod, Opts);
+            Dec = dec(Data, Name, NameT, Mod, Fmt, Opts, Avp),
+            Acc = decode(T, Name, Mod, Fmt, Strict, Opts0, Idx+1, AM),%% recurse
+            acc(Acc, Dec, I, Field, Arity, Strict, Mod);
         _ ->
-            {NameT, _AvpName, _Arity, {Idx, AM}}
+            {NameT, _Field, _Arity, {_, AM}}
                 = incr(Name, Code, Vid, M, Mod, Strict, Opts0, AM0),
 
             Avp = #diameter_avp{code = Code,
@@ -323,9 +342,14 @@ decode(Bin, Code, Vid, DataLen, Pad, M, P, Name, Mod, Fmt, Strict, Opts0, AM0) -
 
 incr(Name, Code, Vid, M, Mod, Strict, Opts, AM0) ->
     NameT = Mod:avp_name(Code, Vid), %% {AvpName, Type} | 'AVP'
-    AvpName = field(NameT),
-    Arity = avp_arity(Name, AvpName, Mod, Opts, M),
-    {NameT, AvpName, Arity, incr(AvpName, Arity, Strict, AM0)}.
+    Field = field(NameT),            %% AvpName | 'AVP'
+    Arity = avp_arity(Name, Field, Mod, Opts, M),
+    if 0 == Arity, 'AVP' /= Field ->
+            A = pack_arity(Name, Field, Opts, Mod, M),
+            {NameT, 'AVP', A, incr('AVP', A, Strict, AM0)};
+       true ->
+            {NameT, Field, Arity, incr(Field, Arity, Strict, AM0)}
+    end.
 
 %% Data is a truncated header if command_code = undefined, otherwise
 %% payload bytes. The former is padded to the length of a header if
@@ -342,9 +366,8 @@ setopts({_, Type}, Name, M, Opts) ->
 
 %% incr/4
 
-incr(F, A, SA, AM)
-  when F == 'AVP';
-       A == ?ANY;
+incr(_, A, SA, AM)
+  when A == ?ANY;
        A == 0;
        SA /= decode ->
     {undefined, AM};
@@ -444,11 +467,12 @@ field({AvpName, _}) ->
 field(_) ->
     'AVP'.
 
-%% decode/6
+%% dec/7
 
-%% AVP not in dictionary.
-decode(_Data, _Name, 'AVP', _Mod, _Opts, Avp) ->
-    Avp;
+%% AVP not in dictionary: try an alternate.
+
+dec(Data, Name, 'AVP', Mod, Fmt, Opts, Avp) ->
+    dec_AVP(dicts(Mod, Opts), Data, Name, Mod, Fmt, Opts, Avp);
 
 %% 6733, 4.4:
 %%
@@ -497,42 +521,108 @@ decode(_Data, _Name, 'AVP', _Mod, _Opts, Avp) ->
 %% defined the RFC's "unrecognized", which is slightly stronger than
 %% "not defined".)
 
-decode(Data, Name, {AvpName, Type}, Mod, Opts, Avp) ->
-    #{dictionary := AppMod, failed_avp := Failed}
+dec(Data, Name, {AvpName, Type}, Mod, Fmt, Opts, Avp) ->
+    #{app_dictionary := AppMod, failed_avp := Failed}
         = Opts,
 
     %% Reset the dictionary for best-effort decode of Failed-AVP.
-    DecMod = if Failed -> AppMod;
-                true   -> Mod
-             end,
-
-    %% A Grouped AVP is represented as a #diameter_avp{} list with AVP
-    %% as head and component AVPs as tail. On encode, data can be a
-    %% list of component AVPs.
-
-    try avp_decode(Data, AvpName, Opts, DecMod, Mod) of
-        {Rec, As} when Type == 'Grouped' ->
-            A = Avp#diameter_avp{value = Rec},
-            [A | As];
-        V when Type /= 'Grouped' ->
-            Avp#diameter_avp{value = V}
+    Dict = if Failed -> AppMod;
+              true   -> Mod
+           end,
+
+    dec(Data, Name, AvpName, Type, Mod, Dict, Fmt, Failed, Opts, Avp).
+
+%% dicts/2
+
+dicts(Mod, #{app_dictionary := Mod, avp_dictionaries := Dicts}) ->
+    Dicts;
+
+dicts(_, #{app_dictionary := Dict, avp_dictionaries := Dicts}) ->
+    [Dict | Dicts];
+
+dicts(Mod, #{app_dictionary := Mod}) ->
+    [];
+
+dicts(_, #{app_dictionary := Dict}) ->
+    [Dict].
+
+%% dec/10
+
+dec(Data, Name, AvpName, Type, Mod, Dict, Fmt, Failed, Opts, Avp) ->
+    try avp(decode, Data, AvpName, Opts, Mod, Dict) of
+        V ->
+            set(Type, Fmt, Avp, V)
     catch
         throw: {?MODULE, T} ->
-            decode_error(Failed, T, Avp);
+            decode_error(Failed, Fmt, T, Avp);
         error: Reason ->
             decode_error(Failed, Reason, Name, Mod, Opts, Avp)
     end.
 
-%% decode_error/3
+%% dec_AVP/7
+
+dec_AVP([], _, _, _, _, _, Avp) ->
+    Avp;
+
+dec_AVP(Dicts, Data, Name, Mod, Fmt, Opts, #diameter_avp{code = Code,
+                                                         vendor_id = Vid}
+                                           = Avp) ->
+    dec_AVP(Dicts, Data, Name, Mod, Fmt, Opts, Code, Vid, Avp).
+
+%% dec_AVP/9
+%%
+%% Try to decode an AVP in the first alternate dictionary that defines
+%% it.
+
+dec_AVP([Dict | Rest], Data, Name, Mod, Fmt, Opts0, Code, Vid, Avp) ->
+    case Dict:avp_name(Code, Vid) of
+        {AvpName, Type} = NameT ->
+            A = Avp#diameter_avp{name = AvpName,
+                                 type = Type},
+            #{failed_avp := Failed}
+                = Opts
+                = setopts(NameT, Name, Avp#diameter_avp.is_mandatory, Opts0),
+            dec(Data, Name, AvpName, Type, Mod, Dict, Fmt, Failed, Opts, A);
+        _ ->
+            dec_AVP(Rest, Data, Name, Mod, Fmt, Opts0, Code, Vid, Avp)
+    end;
+
+dec_AVP([], _, _, _, _, _, _, _, Avp) ->
+    Avp.
+
+%% set/4
+%%
+%% A Grouped AVP is represented as a #diameter_avp{} list with AVP
+%% as head and component AVPs as tail.
+
+set('Grouped', Fmt, Avp, V) ->
+    {Rec, As} = V,
+    [set(Fmt, Avp, Rec) | As];
+
+set(_, _, Avp, V) ->
+    Avp#diameter_avp{value = V}.
+
+%% decode_error/4
 %%
 %% Error when decoding a grouped AVP.
 
-decode_error(true, {Rec, _, _}, Avp) ->
-    Avp#diameter_avp{value = Rec};
+%% Ignoring errors in Failed-AVP.
+decode_error(true, Fmt, {Rec, ComponentAvps, _Errors}, Avp) ->
+    [set(Fmt, Avp, Rec) | ComponentAvps];
 
-decode_error(false, {_, ComponentAvps, [{RC,A} | _]}, Avp) ->
+%% Or not. A faulty component is encoded by itself in Failed-AVP, as
+%% suggested by 7.5 of RFC 6733 (quoted below), so that errors are
+%% reported unambigiously.
+decode_error(false, _, {_, ComponentAvps, [{RC,A} | _]}, Avp) ->
     {RC, [Avp | ComponentAvps], Avp#diameter_avp{data = [A]}}.
 
+%% set/3
+
+set(none, Avp, _Name) ->
+    Avp;
+set(_, Avp, Rec) ->
+    Avp#diameter_avp{value = Rec}.
+
 %% decode_error/6
 %%
 %% Error when decoding a non-grouped AVP.
@@ -546,15 +636,30 @@ decode_error(false, Reason, Name, Mod, Opts, Avp) ->
                      ?MODULE,
                      ?LINE,
                      {Reason, Name, Avp#diameter_avp.name, Mod, Stack}),
-    rc(Reason, Avp, Opts, Mod).
+    case Reason of
+        {'DIAMETER', 5014 = RC, _} ->
+            %% Length error communicated from diameter_types or a
+            %% @custom_types/@codecs module.
+            AvpName = Avp#diameter_avp.name,
+            {RC, Avp#diameter_avp{data = Mod:empty_value(AvpName, Opts)}};
+        _ ->
+            {5004, Avp}
+    end.
 
-%% avp_decode/5
+%% 3588/6733:
+%%
+%%   DIAMETER_INVALID_AVP_VALUE         5004
+%%      The request contained an AVP with an invalid value in its data
+%%      portion.  A Diameter message indicating this error MUST include
+%%      the offending AVPs within a Failed-AVP AVP.
+
+%% avp/6
 
-avp_decode(Data, AvpName, Opts, Mod, Mod) ->
-    Mod:avp(decode, Data, AvpName, Opts);
+avp(T, Data, AvpName, Opts, Mod, Mod) ->
+    Mod:avp(T, Data, AvpName, Opts);
 
-avp_decode(Data, AvpName, Opts, Mod, _) ->
-    Mod:avp(decode, Data, AvpName, Opts, Mod).
+avp(T, Data, AvpName, Opts, _, Mod) ->
+    Mod:avp(T, Data, AvpName, Opts#{module := Mod}).
 
 %% set_strict/3
 %%
@@ -577,61 +682,63 @@ set_failed('Failed-AVP', #{failed_avp := false} = Opts) ->
 set_failed(_, Opts) ->
     Opts.
 
-%% acc/8
+%% acc/7
 
-acc([AM | Acc], As, Name, AvpName, Arity, Strict, Mod, Opts) ->
-    [AM | acc1(Acc, As, Name, AvpName, Arity, Strict, Mod, Opts)].
+acc([AM | Acc], As, I, Field, Arity, Strict, Mod) ->
+    [AM | acc1(Acc, As, I, Field, Arity, Strict, Mod)].
 
-%% acc1/8
+%% acc1/7
 
 %% Faulty AVP, not grouped.
-acc1(Acc, {_RC, Avp} = E, _, _, _, _, _, _) ->
+acc1(Acc, {_RC, Avp} = E, _, _, _, _, _) ->
     [Avps, Failed | Rec] = Acc,
     [[Avp | Avps], [E | Failed] | Rec];
 
 %% Faulty component in grouped AVP.
-acc1(Acc, {RC, As, Avp}, _, _, _, _, _, _) ->
+acc1(Acc, {RC, As, Avp}, _, _, _, _, _) ->
     [Avps, Failed | Rec] = Acc,
     [[As | Avps], [{RC, Avp} | Failed] | Rec];
 
 %% Grouped AVP ...
-acc1([Avps | Acc], [Avp|_] = As, Name, AvpName, Arity, Strict, Mod, Opts) ->
-    [[As|Avps] | acc2(Acc, Avp, Name, AvpName, Arity, Strict, Mod, Opts)];
+acc1([Avps | Acc], [Avp|_] = As, I, Field, Arity, Strict, Mod) ->
+    [[As|Avps] | acc2(Acc, Avp, I, Field, Arity, Strict, Mod)];
 
 %% ... or not.
-acc1([Avps | Acc], Avp, Name, AvpName, Arity, Strict, Mod, Opts) ->
-    [[Avp|Avps] | acc2(Acc, Avp, Name, AvpName, Arity, Strict, Mod, Opts)].
+acc1([Avps | Acc], Avp, I, Field, Arity, Strict, Mod) ->
+    [[Avp|Avps] | acc2(Acc, Avp, I, Field, Arity, Strict, Mod)].
 
-%% acc2/8
+%% The component list of a Grouped AVP is discarded when packing into
+%% the record (or equivalent): the values in an 'AVP' field are
+%% diameter_avp records, not a list of records in the Grouped case,
+%% and the decode into the value field is best-effort. The reason is
+%% history more than logic: it would probably have made more sense to
+%% retain the same structure as in diameter_packet.avps, but an 'AVP'
+%% list has always been flat.
+
+%% acc2/7
 
 %% No errors, but nowhere to pack.
-acc2(Acc, Avp, _, 'AVP', 0, _, _, _) ->
+acc2(Acc, Avp, _, 'AVP', 0, _, _) ->
     [Failed | Rec] = Acc,
     [[{rc(Avp), Avp} | Failed] | Rec];
 
-%% No AVP of this name: try to pack as 'AVP'.
-acc2(Acc, Avp, Name, AvpName, 0, Strict, Mod, Opts) ->
-    M = Avp#diameter_avp.is_mandatory,
-    Arity = pack_arity(Name, AvpName, Opts, Mod, M),
-    acc2(Acc, Avp, Name, 'AVP', Arity, Strict, Mod, Opts);
-
 %% Relaxed arities.
-acc2(Acc, Avp, _, AvpName, Arity, Strict, Mod, _)
+acc2(Acc, Avp, _, Field, Arity, Strict, Mod)
   when Strict /= decode ->
-    pack(Arity, AvpName, Avp, Mod, Acc);
+    pack(Arity, Field, Avp, Mod, Acc);
 
 %% No maximum arity.
-acc2(Acc, Avp, _, AvpName, {_,'*'} = Arity, _, Mod, _) ->
-    pack(Arity, AvpName, Avp, Mod, Acc);
+acc2(Acc, Avp, _, Field, {_,'*'} = Arity, _, Mod) ->
+    pack(Arity, Field, Avp, Mod, Acc);
 
 %% Or check.
-acc2(Acc, Avp, _, AvpName, Arity, _, Mod, _) ->
+acc2(Acc, Avp, I, Field, Arity, _, Mod) ->
     Mx = max_arity(Arity),
-    if Mx =< Avp#diameter_avp.index ->
+    if Mx =< I ->
             [Failed | Rec] = Acc,
             [[{5009, Avp} | Failed] | Rec];
        true ->
-            pack(Arity, AvpName, Avp, Mod, Acc)
+            pack(Arity, Field, Avp, Mod, Acc)
     end.
 
 %% 3588/6733:
@@ -700,22 +807,6 @@ avp_arity(Name, 'AVP' = AvpName, Mod, Opts, M) ->
 avp_arity(Name, AvpName, Mod, _, _) ->
     Mod:avp_arity(Name, AvpName).
 
-%% rc/4
-
-%% Length error communicated from diameter_types or a
-%% @custom_types/@codecs module.
-rc({'DIAMETER', 5014 = RC, _}, #diameter_avp{name = AvpName} = A, Opts, Mod) ->
-    {RC, A#diameter_avp{data = Mod:empty_value(AvpName, Opts)}};
-
-%% 3588:
-%%
-%%   DIAMETER_INVALID_AVP_VALUE         5004
-%%      The request contained an AVP with an invalid value in its data
-%%      portion.  A Diameter message indicating this error MUST include
-%%      the offending AVPs within a Failed-AVP AVP.
-rc(_, Avp, _, _) ->
-    {5004, Avp}.
-
 %% pack/5
 
 pack(Arity, F, Avp, Mod, [Failed | Rec]) ->
@@ -723,8 +814,9 @@ pack(Arity, F, Avp, Mod, [Failed | Rec]) ->
 
 %% set/5
 
-set(_, _, _, _, false = No) ->
-    No;
+set(_, _, _, _, Name)
+  when is_atom(Name) ->
+    Name;
 
 set(1, F, Value, _, Map)
   when is_map(Map) ->
@@ -818,8 +910,8 @@ empty(Name, #{module := Mod} = Opts) ->
 
 %% newrec/4
 
-newrec(false = No, _, _, _) ->
-    No;
+newrec(none, _, Name, _) ->
+    Name;
 
 newrec(record, Mod, Name, T)
   when T /= decode ->
diff --git a/lib/diameter/src/base/diameter_lib.erl b/lib/diameter/src/base/diameter_lib.erl
index 8792e97621..1c1ea42cb5 100644
--- a/lib/diameter/src/base/diameter_lib.erl
+++ b/lib/diameter/src/base/diameter_lib.erl
@@ -283,7 +283,7 @@ ip(T)
 
 %% Or not: convert from '.'/':'-separated decimal/hex.
 ip(Addr) ->
-    {ok, A} = inet_parse:address(Addr),  %% documented in inet(3)
+    {ok, A} = inet:parse_address(Addr),
     A.
 
 %% ---------------------------------------------------------------------------
diff --git a/lib/diameter/src/base/diameter_peer.erl b/lib/diameter/src/base/diameter_peer.erl
index 2759f17e64..4cb5a57a54 100644
--- a/lib/diameter/src/base/diameter_peer.erl
+++ b/lib/diameter/src/base/diameter_peer.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2010-2015. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -202,10 +202,10 @@ match1(Addr, Match) ->
 match(Addr, {ok, A}, _) ->
     Addr == A;
 match(Addr, {error, _}, RE) ->
-    match == re:run(inet_parse:ntoa(Addr), RE, [{capture, none}]).
+    match == re:run(inet:ntoa(Addr), RE, [{capture, none}, caseless]).
 
 addr([_|_] = A) ->
-    inet_parse:address(A);
+    inet:parse_address(A);
 addr(A) ->
     {ok, A}.
 
diff --git a/lib/diameter/src/base/diameter_peer_fsm.erl b/lib/diameter/src/base/diameter_peer_fsm.erl
index 9115630eb5..d99f11a697 100644
--- a/lib/diameter/src/base/diameter_peer_fsm.erl
+++ b/lib/diameter/src/base/diameter_peer_fsm.erl
@@ -128,9 +128,8 @@
                        %% outgoing DPR; boolean says whether or not
                        %% the request was sent explicitly with
                        %% diameter:call/4.
-         codec :: #{decode_format := record,
+         codec :: #{decode_format := diameter:decode_format(),
                     string_decode := boolean(),
-                    strict_arities => diameter:strict_arities(),
                     strict_mbit := boolean(),
                     rfc := 3588 | 6733,
                     ordered_encode := false},
@@ -239,7 +238,7 @@ i({Ack, WPid, {M, Ref} = T, Opts, {SvcOpts, Nodes, Dict0, Svc}}) ->
                     proplists:get_value(dpa_timeout, Opts, ?DPA_TIMEOUT)}),
 
     Tmo = proplists:get_value(capx_timeout, Opts, ?CAPX_TIMEOUT),
-    Strictness = proplists:get_value(capx_strictness, Opts, true),
+    Strict = proplists:get_value(strict_capx, Opts, true),
     LengthErr = proplists:get_value(length_errors, Opts, exit),
 
     {TPid, Addrs} = start_transport(T, Rest, Svc),
@@ -253,15 +252,14 @@ i({Ack, WPid, {M, Ref} = T, Opts, {SvcOpts, Nodes, Dict0, Svc}}) ->
            mode = M,
            service = svc(Svc, Addrs),
            length_errors = LengthErr,
-           strict = Strictness,
+           strict = Strict,
            incoming_maxlen = Maxlen,
            codec = maps:with([decode_format,
                               string_decode,
                               strict_mbit,
                               rfc,
                               ordered_encode],
-                             SvcOpts#{ordered_encode => false,
-                                      decode_format => record})}.
+                             SvcOpts#{ordered_encode => false})}.
 %% The transport returns its local ip addresses so that different
 %% transports on the same service can use different local addresses.
 %% The local addresses are put into Host-IP-Address avps here when
@@ -818,7 +816,8 @@ handle('DPA' = N,
                  %% service: explicit DPR is counted in the same way
                  %% as other explicitly sent requests.
                  incr(recv, H, Dict0),
-                 incr_rc(recv, diameter_codec:decode(Dict0, Opts, Pkt), Dict0)
+                 {_, RecPkt} = decode(Dict0, Opts, Pkt),
+                 incr_rc(recv, RecPkt, Dict0)
              end,
     diameter_peer:close(TPid),
     {stop, N};
@@ -922,21 +921,30 @@ handle_request(Name,
                = S) ->
     ?LOG(recv, Name),
     incr(recv, H, Dict0),
-    send_answer(Name, diameter_codec:decode(Dict0, Opts, Pkt), S).
+    send_answer(Name, decode(Dict0, Opts, Pkt), S).
+
+%% decode/3
+%%
+%% Decode the message as record for diameter_capx, and in the
+%% configured format for events.
+
+decode(Dict0, Opts, Pkt) ->
+    {diameter_codec:decode(Dict0, Opts, Pkt),
+     diameter_codec:decode(Dict0, Opts#{decode_format := record}, Pkt)}.
 
 %% send_answer/3
 
-send_answer(Type, ReqPkt, #state{transport = TPid,
-                                 dictionary = Dict,
-                                 codec = Opts}
-                          = S) ->
-    incr_error(recv, ReqPkt, Dict),
+send_answer(Type, {DecPkt, RecPkt}, #state{transport = TPid,
+                                           dictionary = Dict,
+                                           codec = Opts}
+                                    = S) ->
+    incr_error(recv, RecPkt, Dict),
 
     #diameter_packet{header = H,
                      transport_data = TD}
-        = ReqPkt,
+        = RecPkt,
 
-    {Msg, PostF} = build_answer(Type, ReqPkt, S),
+    {Msg, PostF} = build_answer(Type, DecPkt, RecPkt, S),
 
     %% An answer message clears the R and T flags and retains the P
     %% flag. The E flag is set at encode.
@@ -964,15 +972,15 @@ eval([F|A], S) ->
 eval(T, _) ->
     close(T).
 
-%% build_answer/3
+%% build_answer/4
 
 build_answer('CER',
+             DecPkt,
              #diameter_packet{msg = CER,
                               header = #diameter_header{version
                                                         = ?DIAMETER_VERSION,
                                                         is_error = false},
-                              errors = []}
-             = Pkt,
+                              errors = []},
              #state{dictionary = Dict0}
              = S) ->
     {SupportedApps, RCaps, CEA} = recv_CER(CER, S),
@@ -990,25 +998,25 @@ build_answer('CER',
             orelse ?THROW(4003),  %% DIAMETER_ELECTION_LOST
         caps_cb(Caps)
     of
-        N -> {cea(CEA, N, Dict0), [fun open/5, Pkt,
+        N -> {cea(CEA, N, Dict0), [fun open/5, DecPkt,
                                                SupportedApps,
                                                Caps,
                                                {accept, inband_security(IS)}]}
     catch
         ?FAILURE(Reason) ->
-            rejected(Reason, {'CER', Reason, Caps, Pkt}, S)
+            rejected(Reason, {'CER', Reason, Caps, DecPkt}, S)
     end;
 
 %% The error checks below are similar to those in diameter_traffic for
 %% other messages. Should factor out the commonality.
 
 build_answer(Type,
+             DecPkt,
              #diameter_packet{header = H,
-                              errors = Es}
-             = Pkt,
+                              errors = Es},
              S) ->
     {RC, FailedAVP} = result_code(Type, H, Es),
-    {answer(Type, RC, FailedAVP, S), post(Type, RC, Pkt, S)}.
+    {answer(Type, RC, FailedAVP, S), post(Type, RC, DecPkt, S)}.
 
 inband_security([]) ->
     ?NO_INBAND_SECURITY;
@@ -1180,12 +1188,10 @@ handle_CEA(#diameter_packet{header = H}
            = S) ->
     incr(recv, H, Dict0),
 
-    #diameter_packet{}
-        = DPkt
-        = diameter_codec:decode(Dict0, Opts, Pkt),
+    {DecPkt, RecPkt} = decode(Dict0, Opts, Pkt),
 
-    RC = result_code(incr_rc(recv, DPkt, Dict0)),
-    {SApps, IS, RCaps} = recv_CEA(DPkt, S),
+    RC = result_code(incr_rc(recv, RecPkt, Dict0)),
+    {SApps, IS, RCaps} = recv_CEA(RecPkt, S),
 
     #diameter_caps{origin_host = {OH, DH}}
         = Caps
@@ -1208,9 +1214,9 @@ handle_CEA(#diameter_packet{header = H}
             orelse ?THROW(election_lost),
         caps_cb(Caps)
     of
-        _ -> open(DPkt, SApps, Caps, {connect, hd([_] = IS)}, S)
+        _ -> open(DecPkt, SApps, Caps, {connect, hd([_] = IS)}, S)
     catch
-        ?FAILURE(Reason) -> close({'CEA', Reason, Caps, DPkt})
+        ?FAILURE(Reason) -> close({'CEA', Reason, Caps, DecPkt})
     end.
 %% Check more than the result code since the peer could send success
 %% regardless. If not 2001 then a peer_up callback could do anything
diff --git a/lib/diameter/src/base/diameter_reg.erl b/lib/diameter/src/base/diameter_reg.erl
index 97e74657bd..5b7cfab31a 100644
--- a/lib/diameter/src/base/diameter_reg.erl
+++ b/lib/diameter/src/base/diameter_reg.erl
@@ -19,10 +19,11 @@
 %%
 
 %%
-%% The module implements a simple term -> pid registry.
+%% A simple term -> pid registry.
 %%
 
 -module(diameter_reg).
+
 -behaviour(gen_server).
 
 -export([add/1,
@@ -57,18 +58,18 @@
 
 -type key() :: term().
 -type from() :: {pid(), term()}.
+-type rcvr() :: [pid() | term()]  %% subscribe
+              | from().           %% wait
 -type pattern() :: term().
 
 -record(state, {id = diameter_lib:now(),
-                receivers = dict:new()
-                         :: dict:dict(pattern(), [[pid() | term()]%% subscribe
-                                                  | from()]),     %% wait
+                notify = #{} :: #{pattern() => [rcvr()]},
                 monitors = sets:new() :: sets:set(pid())}).
 
 %% The ?TABLE bag contains the Key -> Pid mapping, as {Key, Pid}
 %% tuples. Each pid is stored in the monitors set to ensure only one
 %% monitor for each pid: more are harmless, but unnecessary. A pattern
-%% is added to receivers a result of calls to wait/1 or subscribe/2:
+%% is added to notify a result of calls to wait/1 or subscribe/2:
 %% changes to ?TABLE causes processes to be notified as required.
 
 %% ===========================================================================
@@ -156,7 +157,7 @@ wait(Pat) ->
 %% # subscribe(Pat, T)
 %%
 %% Like match/1, but additionally receive messages of the form
-%% {T, add|remove, {term(), pid()} when associations are added
+%% {T, add|remove, {term(), pid()}} when associations are added
 %% or removed.
 %% ===========================================================================
 
@@ -186,15 +187,12 @@ uptime() ->
    -> [{pid(), [key()]}].
 
 pids() ->
-    to_list(fun swap/1).
-
-to_list(Fun) ->
-    ets:foldl(fun(T,D) -> append(Fun(T), D) end, orddict:new(), ?TABLE).
-
-append({K,V}, Dict) ->
-    orddict:append(K, V, Dict).
+    append(ets:select(?TABLE, [{{'$1','$2'}, [], [{{'$2', '$1'}}]}])).
 
-id(T) -> T.
+append(Pairs) ->
+    dict:to_list(lists:foldl(fun({K,V}, D) -> dict:append(K, V, D) end,
+                             dict:new(),
+                             Pairs)).
 
 %% terms/0
 
@@ -202,9 +200,7 @@ id(T) -> T.
    -> [{key(), [pid()]}].
 
 terms() ->
-    to_list(fun id/1).
-
-swap({X,Y}) -> {Y,X}.
+    append(ets:tab2list(?TABLE)).
 
 %% subs/0
 
@@ -212,31 +208,19 @@ swap({X,Y}) -> {Y,X}.
    -> [{pattern(), [{pid(), term()}]}].
 
 subs() ->
-    #state{receivers = RD} = state(),
-    dict:fold(fun sub/3, orddict:new(), RD).
-
-sub(Pat, Ps, Dict) ->
-    lists:foldl(fun([P|T], D) -> orddict:append(Pat, {P,T}, D);
-                   (_, D) -> D
-                end,
-                Dict,
-                Ps).
+    #state{notify = Dict} = state(),
+    [{K, Ts} || {K,Ps} <- maps:to_list(Dict),
+                Ts <- [[{P,T} || [P|T] <- Ps]]].
 
 %% waits/0
 
 -spec waits()
-   -> [{pattern(), [{from(), term()}]}].
+   -> [{pattern(), [from()]}].
 
 waits() ->
-    #state{receivers = RD} = state(),
-    dict:fold(fun wait/3, orddict:new(), RD).
-
-wait(Pat, Ps, Dict) ->
-    lists:foldl(fun({_,_} = F, D) -> orddict:append(Pat, F, D);
-                   (_, D) -> D
-                end,
-                Dict,
-                Ps).
+    #state{notify = Dict} = state(),
+    [{K, Ts} || {K,Ps} <- maps:to_list(Dict),
+                Ts <- [[T || {_,_} = T <- Ps]]].
 
 %% ----------------------------------------------------------
 %% # init/1
@@ -250,33 +234,32 @@ init(_) ->
 %% # handle_call/3
 %% ----------------------------------------------------------
 
-handle_call({add, Uniq, Key}, {Pid, _}, S0) ->
+handle_call({add, Uniq, Key}, {Pid, _}, S) ->
     Rec = {Key, Pid},
-    S1 = flush(Uniq, Rec, S0),
+    NS = flush(Uniq, Rec, S),  %% before insert
     {Res, New} = insert(Uniq, Rec),
-    {Recvs, S} = add(New, Rec, S1),
-    notify(Recvs, Rec),
-    {reply, Res, S};
+    {reply, Res, notify(add, New andalso Rec, if New ->
+                                                      add_monitor(Pid, NS);
+                                                 true ->
+                                                      NS
+                                              end)};
 
 handle_call({remove, Key}, {Pid, _}, S) ->
     Rec = {Key, Pid},
-    Recvs = delete([Rec], S),
     ets:delete_object(?TABLE, Rec),
-    notify(Recvs, remove),
-    {reply, true, S};
+    {reply, true, notify(remove, Rec, S)};
 
-handle_call({wait, Pat}, {Pid, _} = From, #state{receivers = RD} = S) ->
+handle_call({wait, Pat}, {Pid, _} = From, S) ->
     NS = add_monitor(Pid, S),
     case match(Pat) of
-        [_|_] = L ->
-            {reply, L, NS};
+        [_|_] = Recs ->
+            {reply, Recs, NS};
         [] ->
-            {noreply, NS#state{receivers = dict:append(Pat, From, RD)}}
+            {noreply, queue(Pat, From, NS)}
     end;
 
-handle_call({subscribe, Pat, T}, {Pid, _}, #state{receivers = RD} = S) ->
-    NS = add_monitor(Pid, S),
-    {reply, match(Pat), NS#state{receivers = dict:append(Pat, [Pid | T], RD)}};
+handle_call({subscribe, Pat, T}, {Pid, _}, S) ->
+    {reply, match(Pat), queue(Pat, [Pid | T], add_monitor(Pid, S))};
 
 handle_call(state, _, S) ->
     {reply, S, S};
@@ -315,6 +298,11 @@ terminate(_Reason, _State)->
 %% # code_change/3
 %% ----------------------------------------------------------
 
+code_change(_, State, "2.1") ->
+    {ok, lists:foldl(fun add_monitor/2,
+                     State,
+                     ets:select(?TABLE, [{{'_', '$1'}, [], ['$1']}]))};
+
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
@@ -332,106 +320,60 @@ insert(true, Rec) ->
     B = ets:insert_new(?TABLE, Rec),  %% entry inserted?
     {B, B}.
 
-%% add/3
-
+%% add_monitor/2
+%%
 %% Only add a single monitor for any given process, since there's no
 %% use to more.
-add(true, {_Key, Pid} = Rec, S) ->
-    NS = add_monitor(Pid, S),
-    {Recvs, RD} = add(Rec, NS),
-    {Recvs, S#state{receivers = RD}};
-
-add(false = No, _, S) ->
-    {No, S}.
 
-%% add/2
+add_monitor(Pid, #state{monitors = Ps} = S) ->
+    case sets:is_element(Pid, Ps) of
+        false ->
+            monitor(process, Pid),
+            S#state{monitors = sets:add_element(Pid, Ps)};
+        true ->
+            S
+    end.
 
-%% Notify processes whose patterns match the inserted key.
-add({_Key, Pid} = Rec, #state{receivers = RD}) ->
-    dict:fold(fun(Pt, Ps, A) ->
-                      add(lists:member(Rec, match(Pt, Pid)), Pt, Ps, Rec, A)
-              end,
-              {sets:new(), RD},
-              RD).
+%% notify/3
 
-%% add/5
-
-add(true, Pat, Recvs, {_,_} = Rec, {Set, Dict}) ->
-    {lists:foldl(fun sets:add_element/2, Set, Recvs),
-     remove(fun erlang:is_list/1, Pat, Recvs, Dict)};
-
-add(false, _, _, _, Acc) ->
-    Acc.
-
-%% add_monitor/2
+notify(_, false, S) ->
+    S;
 
-add_monitor(Pid, #state{monitors = MS} = S) ->
-    add_monitor(sets:is_element(Pid, MS), Pid, S).
+notify(Op, {_,_} = Rec, #state{notify = Dict} = S) ->
+    S#state{notify = maps:fold(fun(P,Rs,D) -> notify(Op, Rec, P, Rs, D) end,
+                               Dict,
+                               Dict)}.
 
-%% add_monitor/3
+%% notify/5
 
-add_monitor(false, Pid, #state{monitors = MS} = S) ->
-    monitor(process, Pid),
-    S#state{monitors = sets:add_element(Pid, MS)};
-
-add_monitor(true, _, S) ->
-    S.
-
-%% delete/2
-
-delete(Recs, #state{receivers = RD}) ->
-    lists:foldl(fun(R,S) -> delete(R, RD, S) end, sets:new(), Recs).
-
-%% delete/3
-
-delete({_Key, Pid} = Rec, RD, Set) ->
-    dict:fold(fun(Pt, Ps, S) ->
-                      delete(lists:member(Rec, match(Pt, Pid)), Rec, Ps, S)
-              end,
-              Set,
-              RD).
-
-%% delete/4
-
-%% Entry matches a pattern ...
-delete(true, Rec, Recvs, Set) ->
-    lists:foldl(fun(R,S) -> sets:add_element({R, Rec}, S) end,
-                Set,
-                Recvs);
-
-%% ... or not.
-delete(false, _, _, Set) ->
-    Set.
-
-%% notify/2
-
-notify(false = No, _) ->
-    No;
-
-notify(Recvs, remove = Op) ->
-    sets:fold(fun({P,R}, N) -> send(P, R, Op), N+1 end, 0, Recvs);
-
-notify(Recvs, {_,_} = Rec) ->
-    sets:fold(fun(P,N) -> send(P, Rec, add), N+1 end, 0, Recvs).
+notify(Op, {_, Pid} = Rec, Pat, Rcvrs, Dict) ->
+    case lists:member(Rec, match(Pat, Pid)) of
+        true ->
+            reset(Pat, Dict, [P || P <- Rcvrs, send(P, Op, Rec)]);
+        false ->
+            Dict
+    end.
 
 %% send/3
 
-%% No processes waiting on remove, by construction: they've either
-%% received notification at add or aren't waiting.
-send([Pid | T], Rec, Op) ->
-    Pid ! {T, Op, Rec};
+send([Pid | T], Op, Rec) ->
+    Pid ! {T, Op, Rec},
+    true;
 
-send({_,_} = From, Rec, add) ->
-    gen_server:reply(From, [Rec]).
+%% No processes wait on remove: they receive notification immediately
+%% or at add, by construction.
+send({_,_} = From, add, Rec) ->
+    gen_server:reply(From, [Rec]),
+    false.
 
 %% down/2
 
-down(Pid, #state{monitors = MS} = S) ->
-    NS = flush(Pid, S),
-    Recvs = delete(match('_', Pid), NS),
+down(Pid, #state{monitors = Ps} = S) ->
+    Recs = match('_', Pid),
     ets:match_delete(?TABLE, {'_', Pid}),
-    notify(Recvs, remove),
-    NS#state{monitors = sets:del_element(Pid, MS)}.
+    lists:foldl(fun(R,NS) -> notify(remove, R, NS) end,
+                flush(Pid, S#state{monitors = sets:del_element(Pid, Ps)}),
+                Recs).
 
 %% flush/3
 
@@ -452,16 +394,15 @@ flush(false, _, S) ->
 %% flush/2
 
 %% Process has died and should no longer receive messages/replies.
-flush(Pid, #state{receivers = RD} = S)
-  when is_pid(Pid) ->
-    S#state{receivers = dict:fold(fun(Pt,Ps,D) -> flush(Pid, Pt, Ps, D) end,
-                                  RD,
-                                  RD)}.
+flush(Pid, #state{notify = Dict} = S) ->
+    S#state{notify = maps:fold(fun(P,Rs,D) -> flush(Pid, P, Rs, D) end,
+                               Dict,
+                               Dict)}.
 
 %% flush/4
 
-flush(Pid, Pat, Recvs, Dict) ->
-    remove(fun(T) -> Pid /= head(T) end, Pat, Recvs, Dict).
+flush(Pid, Pat, Rcvrs, Dict) ->
+    reset(Pat, Dict, [T || T <- Rcvrs, Pid /= head(T)]).
 
 %% head/1
 
@@ -471,15 +412,18 @@ head([P|_]) ->
 head({P,_}) ->
     P.
 
-%% remove/4
+%% reset/3
+
+reset(Key, Map, []) ->
+    maps:remove(Key, Map);
+
+reset(Key, Map, List) ->
+    maps:put(Key, List, Map).
+
+%% queue/3
 
-remove(Pred, Key, Values, Dict) ->
-     case lists:filter(Pred, Values) of
-         [] ->
-             dict:erase(Key, Dict);
-         Rest ->
-             dict:store(Key, Rest, Dict)
-     end.
+queue(Pat, Rcvr, #state{notify = Dict} = S) ->
+    S#state{notify =  maps:put(Pat, [Rcvr | maps:get(Pat, Dict, [])], Dict)}.
 
 %% call/1
 
diff --git a/lib/diameter/src/base/diameter_service.erl b/lib/diameter/src/base/diameter_service.erl
index 208e2e8cb8..31dd92f878 100644
--- a/lib/diameter/src/base/diameter_service.erl
+++ b/lib/diameter/src/base/diameter_service.erl
@@ -115,8 +115,21 @@
                       strict_arities => diameter:strict_arities(),
                       strict_mbit := boolean(),
                       decode_format := diameter:decode_format(),
+                      avp_dictionaries => nonempty_list(module()),
                       traffic_counters := boolean(),
                       string_decode := boolean(),
+                      capabilities_cb => diameter:evaluable(),
+                      pool_size => pos_integer(),
+                      capx_timeout => diameter:'Unsigned32'(),
+                      strict_capx => boolean(),
+                      disconnect_cb => diameter:evaluable(),
+                      dpr_timeout => diameter:'Unsigned32'(),
+                      dpa_timeout => diameter:'Unsigned32'(),
+                      length_errors => exit | handle | discard,
+                      connect_timer => diameter:'Unsigned32'(),
+                      watchdog_timer => diameter:'Unsigned32'()
+                                      | {module(), atom(), list()},
+                      watchdog_config => [{okay|suspect, non_neg_integer()}],
                       spawn_opt := list() | {module(), atom(), list()}}}).
 
 %% Record representing an RFC 3539 watchdog process implemented by
@@ -689,12 +702,15 @@ i(SvcName) ->
 cfg_acc({SvcName, #diameter_service{applications = Apps} = Rec, Opts},
         {false, Acc}) ->
     lists:foreach(fun init_mod/1, Apps),
+    #{monitor := M}
+        = SvcOpts
+        = service_opts(Opts),
     S = #state{service_name = SvcName,
                service = Rec#diameter_service{pid = self()},
                local   = init_peers(),
                remote  = init_peers(),
-               monitor = mref(get_value(monitor, Opts)),
-               options = service_options(lists:keydelete(monitor, 1, Opts))},
+               monitor = mref(M),
+               options = maps:remove(monitor, SvcOpts)},
     {S, Acc};
 
 cfg_acc({_Ref, Type, _Opts} = T, {S, Acc})
@@ -709,8 +725,29 @@ init_peers() ->
                                %%  Alias,
                                %%  TPid}
 
-service_options(Opts) ->
-    maps:from_list(lists:delete({strict_arities, true}, Opts)).
+service_opts(Opts) ->
+    remove([{strict_arities, true},
+            {avp_dictionaries, []}],
+           maps:merge(maps:from_list([{monitor, false} | def_opts()]),
+                      maps:from_list(Opts))).
+
+remove(List, Map) ->
+    maps:filter(fun(K,V) -> not lists:member({K,V}, List) end,
+                Map).
+
+def_opts() ->  %% defaults on the service map
+    [{share_peers, false},
+     {use_shared_peers, false},
+     {sequence, {0,32}},
+     {restrict_connections, nodes},
+     {incoming_maxlen, 16#FFFFFF},
+     {strict_arities, true},
+     {strict_mbit, true},
+     {decode_format, record},
+     {avp_dictionaries, []},
+     {traffic_counters, true},
+     {string_decode, true},
+     {spawn_opt, []}].
 
 mref(false = No) ->
     No;
@@ -730,10 +767,6 @@ init_mod(#diameter_app{alias = Alias,
 start_fsm({Ref, Type, Opts}, S) ->
     start(Ref, {Type, Opts}, S).
 
-get_value(Key, Vs) ->
-    {_, V} = lists:keyfind(Key, 1, Vs),
-    V.
-
 notify(Share, SvcName, T) ->
     Nodes = remotes(Share),
     [] /= Nodes andalso diameter_peer:notify(Nodes, SvcName, T).
@@ -823,7 +856,7 @@ start(Ref, Type, Opts, State) ->
 start(Ref, Type, Opts, N, #state{watchdogT = WatchdogT,
                                  local = {PeerT, _, _},
                                  options = #{string_decode := SD}
-                                 = SvcOpts0,
+                                 = SvcOpts,
                                  service_name = SvcName,
                                  service = Svc0})
   when Type == connect;
@@ -832,12 +865,12 @@ start(Ref, Type, Opts, N, #state{watchdogT = WatchdogT,
         = Svc1
         = merge_service(Opts, Svc0),
     Svc = binary_caps(Svc1, SD),
-    SvcOpts = merge_options(Opts, SvcOpts0),
-    RecvData = diameter_traffic:make_recvdata([SvcName, PeerT, Apps, SvcOpts]),
-    T = {Opts, SvcOpts, RecvData, Svc},
+    {SOpts, TOpts} = merge_opts(SvcOpts, Opts),
+    RecvData = diameter_traffic:make_recvdata([SvcName, PeerT, Apps, SOpts]),
+    T = {TOpts, SOpts, RecvData, Svc},
     Rec = #watchdog{type = Type,
                     ref = Ref,
-                    options = Opts},
+                    options = TOpts},
 
     diameter_lib:fold_n(fun(_,A) ->
                                 [wd(Type, Ref, T, WatchdogT, Rec) | A]
@@ -845,10 +878,14 @@ start(Ref, Type, Opts, N, #state{watchdogT = WatchdogT,
                         [],
                         N).
 
-merge_options(Opts, SvcOpts) ->
-    Keys = maps:keys(SvcOpts),
-    Map = maps:from_list([KV || {K,_} = KV <- Opts, lists:member(K, Keys)]),
-    maps:merge(SvcOpts, Map).
+merge_opts(SvcOpts, Opts) ->
+    Keys = [K || {K,_} <- def_opts()],
+    SO = [T || {K,_} = T <- Opts, lists:member(K, Keys)],
+    TO = Opts -- SO,
+    {maps:merge(maps:with(Keys, SvcOpts), maps:from_list(SO)),
+     TO ++ [T || {K,_} = T <- maps:to_list(SvcOpts),
+                 not lists:member(K, Keys),
+                 not lists:keymember(K, 1, Opts)]}.
 
 binary_caps(Svc, true) ->
     Svc;
diff --git a/lib/diameter/src/base/diameter_traffic.erl b/lib/diameter/src/base/diameter_traffic.erl
index 27a41d6eb0..d2856ae530 100644
--- a/lib/diameter/src/base/diameter_traffic.erl
+++ b/lib/diameter/src/base/diameter_traffic.erl
@@ -78,6 +78,7 @@
          sequence     :: diameter:sequence(),
          counters     :: boolean(),
          codec        :: #{decode_format := diameter:decode_format(),
+                           avp_dictionaries => nonempty_list(module()),
                            string_decode := boolean(),
                            strict_arities => diameter:strict_arities(),
                            strict_mbit := boolean(),
@@ -92,6 +93,7 @@
          caller     :: pid() | undefined,   %% calling process
          handler    :: pid(),               %% request process
          peer       :: undefined | {pid(), #diameter_caps{}},
+         caps       :: undefined,           %% no longer used
          packet     :: #diameter_packet{} | undefined}). %% of request
 
 %% ---------------------------------------------------------------------------
@@ -107,6 +109,7 @@ make_recvdata([SvcName, PeerT, Apps, SvcOpts | _]) ->
                      sequence = Mask,
                      counters = B,
                      codec = maps:with([decode_format,
+                                        avp_dictionaries,
                                         string_decode,
                                         strict_arities,
                                         strict_mbit,
@@ -351,6 +354,8 @@ recv_request(Ack,
             No
     end.
 
+%% decode/4
+
 decode(Id, Dict, #recvdata{codec = Opts}, Pkt) ->
     errors(Id, diameter_codec:decode(Id, Dict, Opts, Pkt)).
 
@@ -679,7 +684,7 @@ resend(false,
     Route = #diameter_avp{data = {Dict0, 'Route-Record', OH}},
     Seq = diameter_session:sequence(Mask),
     Hdr = Hdr0#diameter_header{hop_by_hop_id = Seq},
-    Msg = [Hdr, Route | Avps],  %% reordered at encode
+    Msg = [Hdr | Avps ++ [Route]],
     case send_request(SvcName, App, Msg, Opts) of
         #diameter_packet{} = Ans ->
             Ans;
@@ -1031,15 +1036,15 @@ answer_message(RC,
                               origin_realm = {OR,_}},
                #diameter_packet{avps = Avps,
                                 errors = Es}) ->
-    {Code, _, Vid} = Dict0:avp_header('Session-Id'),
     ['answer-message', {'Origin-Host', OH},
                        {'Origin-Realm', OR},
-                       {'Result-Code', RC}]
-        ++ session_id(Code, Vid, Avps)
-        ++ failed_avp(RC, Es).
+                       {'Result-Code', RC}
+     | session_id(Dict0, Avps)
+       ++ failed_avp(RC, Es)
+       ++ proxy_info(Dict0, Avps)].
 
-session_id(Code, Vid, Avps)
-  when is_list(Avps) ->
+session_id(Dict0, Avps) ->
+    {Code, _, Vid} = Dict0:avp_header('Session-Id'),
     try
         #diameter_avp{data = Bin} = find_avp(Code, Vid, Avps),
         [{'Session-Id', [Bin]}]
@@ -1057,6 +1062,14 @@ failed_avp(RC, [_ | Es]) ->
 failed_avp(_, [] = No) ->
     No.
 
+proxy_info(Dict0, Avps) ->
+    {Code, _, Vid} = Dict0:avp_header('Proxy-Info'),
+    [{'AVP', [A#diameter_avp{value = undefined}
+              || [#diameter_avp{code = C, vendor_id = I} = A | _]
+                     <- Avps,
+                 C == Code,
+                 I == Vid]}].
+
 %% find_avp/3
 
 %% Grouped ...
@@ -1891,16 +1904,12 @@ str(T) ->
 
 %% get_avp/3
 %%
-%% Find an AVP in a message of one of three forms:
-%%
-%% - a message record (as generated from a .dia spec) or
-%% - a list of an atom message name followed by 2-tuple, avp name/value pairs.
-%% - a list of a #diameter_header{} followed by #diameter_avp{} records,
-%%
-%% In the first two forms a dictionary module is used at encode to
-%% identify the type of the AVP and its arity in the message in
-%% question. The third form allows messages to be sent as is, without
-%% a dictionary, which is needed in the case of relay agents, for one.
+%% Find an AVP in a message in one of the decoded formats, or as a
+%% header/avps list. There are only four AVPs that are extracted here:
+%% Result-Code and Experimental-Result in order when constructing
+%% counter keys, and Destination-Host/Realm when selecting a next-hop
+%% peer. Experimental-Result is the only of type Grouped, and is given
+%% special treatment in order to return the value as a record.
 
 %% Messages will be header/avps list as a relay and the only AVP's we
 %% look for are in the common dictionary. This is required since the
@@ -1909,12 +1918,12 @@ str(T) ->
 get_avp(?RELAY, Name, Msg) ->
     get_avp(?BASE, Name, Msg);
 
-%% Message is a header/avps list.
+%% Message as header/avps list.
 get_avp(Dict, Name, [#diameter_header{} | Avps]) ->
     try
-        {Code, _, VId} = Dict:avp_header(Name),
-        A = find_avp(Code, VId, Avps),
-        (avp_decode(Dict, Name, ungroup(A)))#diameter_avp{name = Name}
+        {Code, _, Vid} = Dict:avp_header(Name),
+        A = find_avp(Code, Vid, Avps),
+        avp_decode(Dict, Name, ungroup(A))
     catch
         error: _ ->
             undefined
@@ -1924,20 +1933,33 @@ get_avp(Dict, Name, [#diameter_header{} | Avps]) ->
 get_avp(_, Name, [_MsgName | Avps]) ->
     case find(Name, Avps) of
         {_, V} ->
-            #diameter_avp{name = Name, value = V};
+            #diameter_avp{name = Name, value = value(Name, V)};
         _ ->
             undefined
     end;
 
-%% ... or record (but not necessarily).
+%% ... or record.
 get_avp(Dict, Name, Rec) ->
-    try
-        #diameter_avp{name = Name, value = Dict:'#get-'(Name, Rec)}
+    try Dict:'#get-'(Name, Rec) of
+        V ->
+            #diameter_avp{name = Name, value = value(Name, V)}
     catch
         error:_ ->
             undefined
     end.
 
+value('Experimental-Result' = N, #{'Vendor-Id' := Vid,
+                                   'Experimental-Result-Code' := RC}) ->
+    {N, Vid, RC};
+value('Experimental-Result' = N, [{'Experimental-Result-Code', RC},
+                                  {'Vendor-Id', Vid}]) ->
+    {N, Vid, RC};
+value('Experimental-Result' = N, [{'Vendor-Id', Vid},
+                                  {'Experimental-Result-Code', RC}]) ->
+    {N, Vid, RC};
+value(_, V) ->
+    V.
+
 %% find/2
 
 find(Key, Map)
@@ -1967,14 +1989,25 @@ ungroup(Avp) ->
 
 %% avp_decode/3
 
+%% Ensure Experimental-Result is decoded as record, since this format
+%% is used for counter keys.
+avp_decode(Dict, 'Experimental-Result' = N, #diameter_avp{data = Bin}
+                                            = Avp)
+  when is_binary(Bin) ->
+    {V,_} = Dict:avp(decode, Bin, N, decode_opts(Dict)),
+    Avp#diameter_avp{name = N, value = V};
+
 avp_decode(Dict, Name, #diameter_avp{value = undefined,
                                      data = Bin}
                        = Avp)
   when is_binary(Bin) ->
     V = Dict:avp(decode, Bin, Name, decode_opts(Dict)),
-    Avp#diameter_avp{value = V};
-avp_decode(_, _, #diameter_avp{} = Avp) ->
-    Avp.
+    Avp#diameter_avp{name = Name, value = V};
+
+avp_decode(_, Name, #diameter_avp{} = Avp) ->
+    Avp#diameter_avp{name = Name}.
+
+%% cb/3
 
 cb(#diameter_app{module = [_|_] = M}, F, A) ->
     eval(M, F, A).
@@ -1991,4 +2024,5 @@ decode_opts(Dict) ->
       string_decode => false,
       strict_mbit => false,
       failed_avp => false,
-      dictionary => Dict}.
+      module => Dict,
+      app_dictionary => Dict}.
diff --git a/lib/diameter/src/base/diameter_watchdog.erl b/lib/diameter/src/base/diameter_watchdog.erl
index b2172356ee..43623334a9 100644
--- a/lib/diameter/src/base/diameter_watchdog.erl
+++ b/lib/diameter/src/base/diameter_watchdog.erl
@@ -72,14 +72,11 @@
                      restrict := boolean(),
                      suspect := non_neg_integer(), %% OKAY -> SUSPECT
                      okay := non_neg_integer()},   %% REOPEN -> OKAY
-         codec :: #{decode_format := false,
+         codec :: #{decode_format := none,
                     string_decode := false,
-                    strict_arities => diameter:strict_arities(),
                     strict_mbit := boolean(),
-                    failed_avp := false,
                     rfc := 3588 | 6733,
-                    ordered_encode := false,
-                    incoming_maxlen := diameter:message_length()},
+                    ordered_encode := false},
          shutdown = false :: boolean()}).
 
 %% ---------------------------------------------------------------------------
@@ -137,15 +134,6 @@ i({Ack, T, Pid, {Opts,
     putr(restart, {T, Opts, Svc, SvcOpts}),  %% save seeing it in trace
     putr(dwr, dwr(Caps)),                    %%
     Nodes = restrict_nodes(Restrict),
-    CodecKeys = [decode_format,
-                 string_decode,
-                 strict_arities,
-                 strict_mbit,
-                 incoming_maxlen,
-                 spawn_opt,
-                 rfc,
-                 ordered_encode],
-
     #watchdog{parent = Pid,
               transport = start(T, Opts, SvcOpts, Nodes, Dict0, Svc),
               tw = proplists:get_value(watchdog_timer,
@@ -153,14 +141,21 @@ i({Ack, T, Pid, {Opts,
                                        ?DEFAULT_TW_INIT),
               receive_data = RecvData,
               dictionary = Dict0,
-              config =
-                  maps:without([traffic_counters | CodecKeys],
-                               config(SvcOpts#{restrict => restrict(Nodes),
-                                               suspect => 1,
-                                               okay => 3},
-                                      Opts)),
-              codec = maps:with(CodecKeys -- [strict_arities],
-                                SvcOpts#{decode_format := false,
+              config = maps:with([sequence,
+                                  restrict_connections,
+                                  restrict,
+                                  suspect,
+                                  okay],
+                                 config(SvcOpts#{restrict => restrict(Nodes),
+                                                 suspect => 1,
+                                                 okay => 3},
+                                        Opts)),
+              codec = maps:with([decode_format,
+                                 strict_mbit,
+                                 string_decode,
+                                 rfc,
+                                 ordered_encode],
+                                SvcOpts#{decode_format := none,
                                          string_decode := false,
                                          ordered_encode => false})}.
 
diff --git a/lib/diameter/src/compiler/diameter_dict_util.erl b/lib/diameter/src/compiler/diameter_dict_util.erl
index f9f2b02e94..7b53e51cb6 100644
--- a/lib/diameter/src/compiler/diameter_dict_util.erl
+++ b/lib/diameter/src/compiler/diameter_dict_util.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2010-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -923,7 +923,7 @@ xa([D|_] = Ds, [[Qual, D, {_, Line, AvpName}] | Avps], Dict, Key, Name) ->
        store_new({Key, {Name, AvpName}},
                  [Line, Qual, D],
                  Dict,
-                 [Name, Line],
+                 [AvpName, Line],
                  avp_already_referenced),
        Key,
        Name);
diff --git a/lib/diameter/src/diameter.appup.src b/lib/diameter/src/diameter.appup.src
index 07d0389bfd..d0e58e8410 100644
--- a/lib/diameter/src/diameter.appup.src
+++ b/lib/diameter/src/diameter.appup.src
@@ -52,7 +52,11 @@
   {"1.11.2",  [{restart_application, diameter}]},  %% 18.3
   {"1.12",    [{restart_application, diameter}]},  %% 19.0
   {"1.12.1",  [{restart_application, diameter}]},  %% 19.1
-  {"1.12.2",  [{restart_application, diameter}]}   %% 19.3
+  {"1.12.2",  [{restart_application, diameter}]},  %% 19.3
+  {"2.0",     [{restart_application, diameter}]},  %% 20.0
+  {"2.1",     [{load_module, diameter_gen},        %% 20.1
+               {update, diameter_reg, {advanced, "2.1"}}]},
+  {"2.1.1",   [{load_module, diameter_gen}]}
  ],
  [
   {"0.9",     [{restart_application, diameter}]},
@@ -86,6 +90,9 @@
   {"1.11.2",  [{restart_application, diameter}]},
   {"1.12",    [{restart_application, diameter}]},
   {"1.12.1",  [{restart_application, diameter}]},
-  {"1.12.2",  [{restart_application, diameter}]}
+  {"1.12.2",  [{restart_application, diameter}]},
+  {"2.0",     [{restart_application, diameter}]},
+  {"2.1",     [{restart_application, diameter}]},
+  {"2.1.1",   [{load_module, diameter_gen}]}
  ]
 }.
diff --git a/lib/diameter/src/dict/doic_rfc7683.dia b/lib/diameter/src/dict/doic_rfc7683.dia
new file mode 100644
index 0000000000..2b7804115e
--- /dev/null
+++ b/lib/diameter/src/dict/doic_rfc7683.dia
@@ -0,0 +1,50 @@
+;;
+;; %CopyrightBegin%
+;;
+;; Copyright Ericsson AB 2017. All Rights Reserved.
+;;
+;; Licensed under the Apache License, Version 2.0 (the "License");
+;; you may not use this file except in compliance with the License.
+;; You may obtain a copy of the License at
+;;
+;;     http://www.apache.org/licenses/LICENSE-2.0
+;;
+;; Unless required by applicable law or agreed to in writing, software
+;; distributed under the License is distributed on an "AS IS" BASIS,
+;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+;; See the License for the specific language governing permissions and
+;; limitations under the License.
+;;
+;; %CopyrightEnd%
+;;
+
+@name   diameter_gen_doic_rfc7683
+@prefix diameter_doic
+
+@avp_types
+
+   OC-Supported-Features     621         Grouped        -
+   OC-Feature-Vector         622         Unsigned64     -
+   OC-OLR                    623         Grouped        -
+   OC-Sequence-Number        624         Unsigned64     -
+   OC-Validity-Duration      625         Unsigned32     -
+   OC-Report-Type            626         Enumerated     -
+   OC-Reduction-Percentage   627         Unsigned32     -
+
+@enum OC-Report-Type
+
+   HOST_REPORT     0
+   REALM_REPORT    1
+
+@grouped
+
+      OC-Supported-Features ::= < AVP Header: 621 >
+                                [ OC-Feature-Vector ]
+                              * [ AVP ]
+
+      OC-OLR ::= < AVP Header: 623 >
+                 < OC-Sequence-Number >
+                 < OC-Report-Type >
+                 [ OC-Reduction-Percentage ]
+                 [ OC-Validity-Duration ]
+               * [ AVP ]
diff --git a/lib/diameter/src/modules.mk b/lib/diameter/src/modules.mk
index bb3b234d20..bb86de016a 100644
--- a/lib/diameter/src/modules.mk
+++ b/lib/diameter/src/modules.mk
@@ -24,6 +24,7 @@ DICTS = \
 	base_rfc6733 \
 	base_accounting \
 	acct_rfc6733 \
+	doic_rfc7683 \
 	relay
 
 # The yecc grammar for the dictionary parser.
diff --git a/lib/diameter/src/transport/diameter_sctp.erl b/lib/diameter/src/transport/diameter_sctp.erl
index a0104fac6e..64b34da690 100644
--- a/lib/diameter/src/transport/diameter_sctp.erl
+++ b/lib/diameter/src/transport/diameter_sctp.erl
@@ -79,7 +79,7 @@
 -type option() :: {sender, boolean()}
                 | sender
                 | {packet, boolean() | raw}
-                | {message_cb, false | diameter:evaluable()}.
+                | {message_cb, false | diameter:eval()}.
 
 -type uint() :: non_neg_integer().
 
@@ -102,9 +102,12 @@
          streams  :: {uint(), uint()}      %% {InStream, OutStream} counts
                    | undefined,
          os = 0   :: uint(),               %% next output stream
+         rotate = 1 :: boolean() | 0 | 1,  %% rotate os?
+         unordered = false :: boolean()    %% always send unordered?
+                            | pos_integer(),% or if =< N outbound streams?
          packet = true :: boolean()        %% legacy transport_data?
                         | raw,
-         message_cb = false :: false | diameter:evaluable(),
+         message_cb = false :: false | diameter:eval(),
          send = false :: pid() | boolean()}).      %% sending process
 
 %% Monitor process state.
@@ -120,7 +123,7 @@
          socket    :: gen_sctp:sctp_socket(),
          service   :: pid(), %% service process
          pending = {0, queue:new()},
-         opts      :: [[match()] | boolean() | diameter:evaluable()]}).
+         opts      :: [[match()] | boolean() | diameter:eval()]}).
 %% Field pending implements two queues: the first of transport-to-be
 %% processes to which an association has been assigned but for which
 %% diameter hasn't yet spawned a transport process, a short-lived
@@ -156,12 +159,7 @@ start(T, Svc, Opts)
         = Svc,
     diameter_sctp_sup:start(),  %% start supervisors on demand
     Addrs = Caps#diameter_caps.host_ip_address,
-    s(T, Addrs, Pid, lists:map(fun ip/1, Opts)).
-
-ip({ifaddr, A}) ->
-    {ip, A};
-ip(T) ->
-    T.
+    s(T, Addrs, Pid, Opts).
 
 %% A listener spawns transports either as a consequence of this call
 %% when there is not yet an association to assign it, or at comm_up on
@@ -246,8 +244,11 @@ i(#monitor{transport = TPid} = S) ->
 i({listen, Ref, {Opts, SvcPid, Addrs}}) ->
     monitor(process, SvcPid),
     [_] = diameter_config:subscribe(Ref, transport), %% assert existence
-    {Split, Rest}
-        = proplists:split(Opts, [accept, packet, sender, message_cb]),
+    {Split, Rest} = proplists:split(Opts, [accept,
+                                           packet,
+                                           sender,
+                                           message_cb,
+                                           unordered]),
     OwnOpts = lists:append(Split),
     {LAs, Sock} = AS = open(Addrs, Rest, ?DEFAULT_PORT),
     ok = gen_sctp:listen(Sock, true),
@@ -259,12 +260,16 @@ i({listen, Ref, {Opts, SvcPid, Addrs}}) ->
               opts = [[[M] || {accept, M} <- OwnOpts],
                       proplists:get_value(packet, OwnOpts, true)
                       | [proplists:get_value(K, OwnOpts, false)
-                         || K <- [sender, message_cb]]]};
+                         || K <- [sender, message_cb, unordered]]]};
 
 %% A connecting transport.
 i({connect, Pid, Opts, Addrs, Ref}) ->
-    {[Ps | Split], Rest}
-        = proplists:split(Opts, [rport, raddr, packet, sender, message_cb]),
+    {[Ps | Split], Rest} = proplists:split(Opts, [rport,
+                                                  raddr,
+                                                  packet,
+                                                  sender,
+                                                  message_cb,
+                                                  unordered]),
     OwnOpts = lists:append(Split),
     CB = proplists:get_value(message_cb, OwnOpts, false),
     false == CB orelse (Pid ! {diameter, ack}),
@@ -278,6 +283,7 @@ i({connect, Pid, Opts, Addrs, Ref}) ->
                mode = {connect, connect(Sock, RAs, RP, [])},
                socket = Sock,
                message_cb = CB,
+               unordered = proplists:get_value(ordered, OwnOpts, false),
                packet = proplists:get_value(packet, OwnOpts, true),
                send = proplists:get_value(sender, OwnOpts, false)};
 
@@ -315,12 +321,13 @@ i({K, Ref}, #transport{mode = {accept, _}} = S) ->
             S#transport{parent = Pid};
         {K, T, Opts} when K == peeloff ->  %% association
             {sctp, Sock, _RA, _RP, _Data} = T,
-            [Matches, Packet, Sender, CB] = Opts,
+            [Matches, Packet, Sender, CB, Unordered] = Opts,
             ok = accept_peer(Sock, Matches),
             demonitor(Ref, [flush]),
             false == CB orelse (S#transport.parent ! {diameter, ack}),
             t(T, S#transport{socket = Sock,
                              message_cb = CB,
+                             unordered = Unordered,
                              packet = Packet,
                              send = Sender});
         accept_timeout = T ->
@@ -354,23 +361,35 @@ l([], Ref, T) ->
 %% open/3
 
 open(Addrs, Opts, PortNr) ->
-    {LAs, Os} = addrs(Addrs, Opts),
-    {LAs, case gen_sctp:open(gen_opts(portnr(Os, PortNr))) of
-              {ok, Sock} ->
-                  Sock;
-              {error, Reason} ->
-                  x({open, Reason})
-          end}.
+    case gen_sctp:open(gen_opts(portnr(addrs(Addrs, Opts), PortNr))) of
+        {ok, Sock} ->
+            {addrs(Sock), Sock};
+        {error, Reason} ->
+            x({open, Reason})
+    end.
 
 addrs(Addrs, Opts) ->
-    case proplists:split(Opts, [ip]) of
-        {[[]], _} ->
-            {Addrs, Opts ++ [{ip, A} || A <- Addrs]};
-        {[As], Os} ->
-            LAs = [diameter_lib:ipaddr(A) || {ip, A} <- As],
-            {LAs, Os ++ [{ip, A} || A <- LAs]}
+    case lists:mapfoldl(fun ipaddr/2, false, Opts) of
+        {Os, true} ->
+            Os;
+        {_, false} ->
+            Opts ++ [{ip, A} || A <- Addrs]
     end.
 
+ipaddr({K,A}, _)
+  when K == ifaddr;
+       K == ip ->
+    {{ip, ipaddr(A)}, true};
+ipaddr(T, B) ->
+    {T, B}.
+
+ipaddr(A)
+  when A == loopback;
+       A == any ->
+    A;
+ipaddr(A) ->
+    diameter_lib:ipaddr(A).
+
 portnr(Opts, PortNr) ->
     case proplists:get_value(port, Opts) of
         undefined ->
@@ -379,6 +398,14 @@ portnr(Opts, PortNr) ->
             Opts
     end.
 
+addrs(Sock) ->
+    case inet:socknames(Sock) of
+        {ok, As} ->
+            [A || {A,_} <- As];
+        {error, Reason} ->
+            x({socknames, Reason})
+    end.
+
 %% x/1
 
 x(Reason) ->
@@ -677,11 +704,16 @@ send(#diameter_packet{transport_data = {outstream, SId}}
      = S) ->
     send(SId rem OS, Msg, S);
 
-%% ... or not: rotate through all streams.
-send(Msg, #transport{streams = {_, OS},
+%% ... or not: rotate when sending on multiple streams ...
+send(Msg, #transport{rotate = true,
+                     streams = {_, OS},
                      os = N}
           = S) ->
-    send(N, Msg, S#transport{os = (N + 1) rem OS}).
+    send(N, Msg, S#transport{os = (N + 1) rem OS});
+
+%% ... or send on the only stream available.
+send(Msg, S) ->
+    send(0, Msg, S).
 
 %% send/3
 
@@ -749,7 +781,7 @@ recv({[#sctp_sndrcvinfo{assoc_id = Id}], _Bin}
 %% Inbound Diameter message.
 recv({[#sctp_sndrcvinfo{}], Bin} = Msg, S)
   when is_binary(Bin) ->
-    message(recv, Msg, S);
+    message(recv, Msg, recv(S));
 
 recv({_, #sctp_shutdown_event{}}, _) ->
     stop;
@@ -769,6 +801,41 @@ recv({_, #sctp_paddr_change{}}, _) ->
 recv({_, #sctp_pdapi_event{}}, _) ->
     ok.
 
+%% recv/1
+%%
+%% Start sending unordered after the second reception, so that an
+%% outgoing CER/CEA will arrive at the peer before another request.
+
+recv(#transport{rotate = B} = S)
+  when is_boolean(B) ->
+    S;
+
+recv(#transport{rotate = 0,
+                streams = {_,OS},
+                socket = Sock,
+                unordered = B}
+     = S) ->
+    ok = unordered(Sock, OS, B),
+    S#transport{rotate = 1 < OS};
+
+recv(#transport{rotate = N} = S) ->
+    S#transport{rotate = N-1}.
+
+%% unordered/3
+
+unordered(Sock, OS, B)
+  when B;
+       is_integer(B), OS =< B ->
+    inet:setopts(Sock, [{sctp_default_send_param,
+                         #sctp_sndrcvinfo{flags = [unordered]}}]);
+
+unordered(_, OS, B)
+  when not B;
+       is_integer(B), B < OS ->
+    ok.
+
+%% publish/4
+
 publish(T, Ref, Id, Sock) ->
     true = diameter_reg:add_new({?MODULE, T, {Ref, {Id, Sock}}}),
     putr(?INFO_KEY, {gen_sctp, Sock}).  %% for info/1
diff --git a/lib/diameter/src/transport/diameter_tcp.erl b/lib/diameter/src/transport/diameter_tcp.erl
index 5d7bca059a..a8639baa11 100644
--- a/lib/diameter/src/transport/diameter_tcp.erl
+++ b/lib/diameter/src/transport/diameter_tcp.erl
@@ -110,7 +110,7 @@
 -type option() :: {port, non_neg_integer()}
                 | {sender, boolean()}
                 | sender
-                | {message_cb, false | diameter:evaluable()}
+                | {message_cb, false | diameter:eval()}
                 | {fragment_timer, 0..16#FFFFFFFF}.
 
 %% Accepting/connecting transport process state.
@@ -125,7 +125,7 @@
          timeout :: infinity | 0..16#FFFFFFFF,  %% fragment timeout
          tref = false  :: false | reference(),  %% fragment timer reference
          flush = false :: boolean(),            %% flush fragment at timeout?
-         message_cb  :: false | diameter:evaluable(),
+         message_cb  :: false | diameter:eval(),
          send        :: pid() | false}).         %% sending process
 
 %% The usual transport using gen_tcp can be replaced by anything
@@ -142,8 +142,7 @@
    -> {ok, pid(), [inet:ip_address()]}
  when Ref :: diameter:transport_ref();
            ({connect, Ref}, #diameter_service{}, [connect_option()])
-   -> {ok, pid(), [inet:ip_address()]}
-    | {ok, pid()}
+   -> {ok, pid()}
  when Ref :: diameter:transport_ref().
 
 start({T, Ref}, Svc, Opts) ->
@@ -258,22 +257,14 @@ i(#monitor{parent = Pid, transport = TPid} = S) ->
 
 i({listen, Ref, {Mod, Opts, Addrs}}) ->
     [_] = diameter_config:subscribe(Ref, transport), %% assert existence
-    {[LA, LP], Rest} = proplists:split(Opts, [ip, port]),
-    LAddrOpt = get_addr(LA, Addrs),
-    LPort = get_port(LP),
-    {ok, LSock} = Mod:listen(LPort, gen_opts(LAddrOpt, Rest)),
-    LAddr = laddr(LAddrOpt, Mod, LSock),
+    {[LP], Rest} = proplists:split(Opts, [port]),
+    {ok, LSock} = Mod:listen(get_port(LP), gen_opts(Addrs, Rest)),
+    {ok, {LAddr, _}} = sockname(Mod, LSock),
     true = diameter_reg:add_new({?MODULE, listener, {Ref, {LAddr, LSock}}}),
     proc_lib:init_ack({ok, self(), {LAddr, LSock}}),
     #listener{socket = LSock,
               module = Mod}.
 
-laddr([], Mod, Sock) ->
-    {ok, {Addr, _Port}} = sockname(Mod, Sock),
-    Addr;
-laddr([{ip, Addr}], _, _) ->
-    Addr.
-
 ssl_opts([]) ->
     false;
 ssl_opts([{ssl_options, true}]) ->
@@ -308,24 +299,16 @@ init(accept = T, Ref, Mod, Pid, Opts, Addrs, SvcPid) ->
     Sock;
 
 init(connect = T, Ref, Mod, Pid, Opts, Addrs, _SvcPid) ->
-    {[LA, RA, RP], Rest} = proplists:split(Opts, [ip, raddr, rport]),
-    LAddrOpt = get_addr(LA, Addrs),
+    {[RA, RP], Rest} = proplists:split(Opts, [raddr, rport]),
     RAddr = get_addr(RA),
     RPort = get_port(RP),
-    proc_lib:init_ack(init_rc(LAddrOpt)),
-    Sock = ok(connect(Mod, RAddr, RPort, gen_opts(LAddrOpt, Rest))),
+    proc_lib:init_ack({ok, self()}),
+    Sock = ok(connect(Mod, RAddr, RPort, gen_opts(Addrs, Rest))),
     publish(Mod, T, Ref, Sock),
-    up(Pid, {RAddr, RPort}, LAddrOpt, Mod, Sock),
+    up(Pid, {RAddr, RPort}, Mod, Sock),
     Sock.
 
-init_rc([{ip, Addr}]) ->
-    {ok, self(), [Addr]};
-init_rc([]) ->
-    {ok, self()}.
-
-up(Pid, Remote, [{ip, _Addr}], _, _) ->
-    diameter_peer:up(Pid, Remote);
-up(Pid, Remote, [], Mod, Sock) ->
+up(Pid, Remote, Mod, Sock) ->
     {Addr, _Port} = ok(sockname(Mod, Sock)),
     diameter_peer:up(Pid, Remote, [Addr]).
 
@@ -382,25 +365,41 @@ l([{{?MODULE, listener, {_, AS}}, LPid}], _, _) ->
 l([], Ref, T) ->
     diameter_tcp_sup:start_child({listen, Ref, T}).
 
-%% get_addr/1
+%% addrs/2
+%%
+%% Take the first address from the service if several are specified
+%% and not address is configured.
+
+addrs(Addrs, Opts) ->
+    case lists:mapfoldr(fun ipaddr/2, [], Opts) of
+        {Os, [_]} ->
+            Os;
+        {_, []} ->
+            Opts ++ [{ip, A} || [A|_] <- [Addrs]];
+        {_, As} ->
+            ?ERROR({invalid_addrs, As, Addrs})
+    end.
 
-get_addr(As) ->
-    diameter_lib:ipaddr(addr(As, [])).
+ipaddr({K,A}, As)
+  when K == ifaddr;
+       K == ip ->
+    {{ip, ipaddr(A)}, [A | As]};
+ipaddr(T, B) ->
+    {T, B}.
 
-%% get_addr/2
+ipaddr(A)
+  when A == loopback;
+       A == any ->
+    A;
+ipaddr(A) ->
+    diameter_lib:ipaddr(A).
 
-get_addr([], []) ->
-    [];
-get_addr(As, Def) ->
-    [{ip, diameter_lib:ipaddr(addr(As, Def))}].
+%% get_addr/1
 
-%% Take the first address from the service if several are unspecified.
-addr([], [Addr | _]) ->
-    Addr;
-addr([{_, Addr}], _) ->
-    Addr;
-addr(As, Addrs) ->
-    ?ERROR({invalid_addrs, As, Addrs}).
+get_addr([{_, Addr}]) ->
+    diameter_lib:ipaddr(Addr);
+get_addr(Addrs) ->
+    ?ERROR({invalid_addrs, Addrs}).
 
 %% get_port/1
 
@@ -413,10 +412,15 @@ get_port(Ps) ->
 
 %% gen_opts/2
 
-gen_opts(LAddrOpt, Opts) ->
+gen_opts(Addrs, Opts) ->
+    gen_opts(addrs(Addrs, Opts)).
+
+%% gen_opts/1
+
+gen_opts(Opts) ->
     {L,_} = proplists:split(Opts, [binary, packet, active]),
     [[],[],[]] == L orelse ?ERROR({reserved_options, Opts}),
-    [binary, {packet, 0}, {active, false}] ++ LAddrOpt ++ Opts.
+    [binary, {packet, 0}, {active, false} | Opts].
 
 %% ---------------------------------------------------------------------------
 %% # ports/1
diff --git a/lib/diameter/test/diameter_codec_SUITE.erl b/lib/diameter/test/diameter_codec_SUITE.erl
index c79b642c09..17112794e4 100644
--- a/lib/diameter/test/diameter_codec_SUITE.erl
+++ b/lib/diameter/test/diameter_codec_SUITE.erl
@@ -291,7 +291,7 @@ recode(Msg, Dict) ->
     recode(#diameter_packet{msg = Msg}, Dict).
 
 opts(Mod) ->
-    #{dictionary => Mod,
+    #{app_dictionary => Mod,
       decode_format => record,
       string_decode => false,
       strict_mbit => true,
diff --git a/lib/diameter/test/diameter_codec_SUITE_data/diameter_test_unknown.erl b/lib/diameter/test/diameter_codec_SUITE_data/diameter_test_unknown.erl
index 735339ebb9..c6bba75f09 100644
--- a/lib/diameter/test/diameter_codec_SUITE_data/diameter_test_unknown.erl
+++ b/lib/diameter/test/diameter_codec_SUITE_data/diameter_test_unknown.erl
@@ -77,7 +77,7 @@ dec('BR', #diameter_packet
     ok.
 
 opts(Mod) ->
-    #{dictionary => Mod,
+    #{app_dictionary => Mod,
       decode_format => record,
       string_decode => true,
       strict_mbit => true,
diff --git a/lib/diameter/test/diameter_codec_test.erl b/lib/diameter/test/diameter_codec_test.erl
index 22fb0550ea..70e910ffa6 100644
--- a/lib/diameter/test/diameter_codec_test.erl
+++ b/lib/diameter/test/diameter_codec_test.erl
@@ -44,7 +44,8 @@ base() ->
     [] = run([[fun base/1, T] || T <- [zero, decode]]).
 
 gen(Mod) ->
-    Fs = [{Mod, F, []} || F <- [name, id, vendor_id, vendor_name]],
+    Fs = [{Mod, F, []} || Mod /= diameter_gen_doic_rfc7683,
+                          F <- [name, id, vendor_id, vendor_name]],
     [] = run(Fs ++ [[fun gen/2, Mod, T] || T <- [messages,
                                                  command_codes,
                                                  avp_types,
@@ -216,7 +217,7 @@ avp(Mod, encode = X, V, Name, _) ->
 
 opts(Mod) ->
     (opts())#{module => Mod,
-              dictionary => Mod}.
+              app_dictionary => Mod}.
 
 opts() ->
     #{decode_format => record,
diff --git a/lib/diameter/test/diameter_event_SUITE.erl b/lib/diameter/test/diameter_event_SUITE.erl
index 57d3427037..a291dde6be 100644
--- a/lib/diameter/test/diameter_event_SUITE.erl
+++ b/lib/diameter/test/diameter_event_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2013-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -63,7 +63,8 @@
          {'Host-IP-Address', [?ADDR]},
          {'Vendor-Id', 12345},
          {'Product-Name', "OTP/diameter"},
-         {'Acct-Application-Id', [D:id() || D <- Dicts]}
+         {'Acct-Application-Id', [D:id() || D <- Dicts]},
+         {decode_format, map}
          | [{application, [{dictionary, D},
                            {module, #diameter_callback{}}]}
             || D <- Dicts]]).
@@ -111,7 +112,8 @@ up(Config) ->
     {Svc, Ref} = connect(Config, [{connect_timer, 5000},
                                   {watchdog_timer, 15000}]),
     start = event(Svc),
-    {up, Ref, {TPid, Caps}, Cfg, #diameter_packet{}} = event(Svc),
+    {up, Ref, {TPid, Caps}, Cfg, #diameter_packet{msg = M}} = event(Svc),
+    ['CEA' | #{}] = M,  %% assert
     {watchdog, Ref, _, {initial, okay}, _} = event(Svc),
     %% Kill the transport process and see that the connection is
     %% reestablished after a watchdog timeout, not after connect_timer
@@ -131,8 +133,9 @@ down(Config) ->
                                   {connect_timer, 5000},
                                   {watchdog_timer, 20000}]),
     start = event(Svc),
-    {closed, Ref, {'CEA', ?NO_COMMON_APP, _, #diameter_packet{}}, _}
+    {closed, Ref, {'CEA', ?NO_COMMON_APP, _, #diameter_packet{msg = M}}, _}
         = event(Svc),
+    ['CEA' | #{}] = M,  %% assert
     {reconnect, Ref, _} = event(Svc, 4000, 10000).
 
 %% Connect with matching capabilities but have the server delay its
diff --git a/lib/diameter/test/diameter_examples_SUITE.erl b/lib/diameter/test/diameter_examples_SUITE.erl
index eb99f10fe6..ee44ed8dc9 100644
--- a/lib/diameter/test/diameter_examples_SUITE.erl
+++ b/lib/diameter/test/diameter_examples_SUITE.erl
@@ -344,7 +344,7 @@ top(Dir, LibDir) ->
 start({server, Prot}) ->
     ok = diameter:start(),
     ok = server:start(),
-    {ok, Ref} = server:listen(Prot),
+    {ok, Ref} = server:listen({Prot, any, 3868}),
     [_] = ?util:lport(Prot, Ref),
     ok;
 
@@ -352,7 +352,7 @@ start({client = Svc, Prot}) ->
     ok = diameter:start(),
     true = diameter:subscribe(Svc),
     ok = client:start(),
-    {ok, Ref} = client:connect(Prot),
+    {ok, Ref} = client:connect({Prot, loopback, loopback, 3868}),
     receive #diameter_event{info = {up, Ref, _, _, _}} -> ok end;
 
 start(Config) ->
diff --git a/lib/diameter/test/diameter_reg_SUITE.erl b/lib/diameter/test/diameter_reg_SUITE.erl
index e2a1ca00c3..cd9242faa8 100644
--- a/lib/diameter/test/diameter_reg_SUITE.erl
+++ b/lib/diameter/test/diameter_reg_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2010-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2010-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -34,6 +34,7 @@
 -export([add/1,
          add_new/1,
          remove/1,
+         down/1,
          terms/1,
          pids/1]).
 
@@ -56,6 +57,7 @@ tc() ->
     [add,
      add_new,
      remove,
+     down,
      terms,
      pids].
 
@@ -88,6 +90,13 @@ remove(_) ->
     [{Ref, Pid}] = ?reg:match(Ref),
     Pid = self().
 
+down(_) ->
+    Ref = make_ref(),
+    {_, MRef} = spawn_monitor(fun() -> ?reg:add_new(Ref), timer:sleep(1000) end),
+    receive {'DOWN', MRef, process, _, _} -> ok end,
+    timer:sleep(1000),
+    [] = ?reg:match(Ref).
+
 terms(_) ->
     Ref = make_ref(),
     true = ?reg:add_new(Ref),
diff --git a/lib/diameter/test/diameter_traffic_SUITE.erl b/lib/diameter/test/diameter_traffic_SUITE.erl
index 8b0ce9710a..c224f9a27e 100644
--- a/lib/diameter/test/diameter_traffic_SUITE.erl
+++ b/lib/diameter/test/diameter_traffic_SUITE.erl
@@ -20,6 +20,7 @@
 
 %%
 %% Tests of traffic between two Diameter nodes, one client, one server.
+%% The traffic isn't meant to be sensible, just to exercise code.
 %%
 
 -module(diameter_traffic_SUITE).
@@ -49,6 +50,7 @@
          send_protocol_error/1,
          send_experimental_result/1,
          send_arbitrary/1,
+         send_proxy_info/1,
          send_unknown/1,
          send_unknown_short/1,
          send_unknown_mandatory/1,
@@ -114,6 +116,8 @@
 %% diameter_{tcp,sctp} callbacks
 -export([message/3]).
 
+-include_lib("kernel/include/inet_sctp.hrl").
+
 -include("diameter.hrl").
 -include("diameter_gen_base_rfc3588.hrl").
 -include("diameter_gen_base_accounting.hrl").
@@ -135,6 +139,7 @@
 
 -define(A, list_to_atom).
 -define(L, atom_to_list).
+-define(B, iolist_to_binary).
 
 %% Don't use is_record/2 since dictionary hrl's aren't included.
 %% (Since they define conflicting records with the same names.)
@@ -154,7 +159,7 @@
 -define(ENCODINGS, [list, record, map]).
 
 %% How to decode incoming messages.
--define(DECODINGS, [record, false, map, list, record_from_map]).
+-define(DECODINGS, [record, none, map, list, record_from_map]).
 
 %% Which dictionary to use in the clients.
 -define(RFCS, [rfc3588, rfc6733, rfc4005]).
@@ -213,6 +218,7 @@
          {'Acct-Application-Id', [3]},  %% base accounting
          {restrict_connections, false},
          {string_decode, Grp#group.strings},
+         {avp_dictionaries, [diameter_gen_doic_rfc7683]},
          {incoming_maxlen, 1 bsl 21}
          | [{application, [{dictionary, D},
                            {module, [?MODULE, Grp]},
@@ -387,6 +393,16 @@ select(T) ->
 
 %% --------------------
 
+%% Work around common_test accumulating Config improperly, causing
+%% testcases to get Config from groups and suites they're not in.
+init_per_testcase(N, Config)
+  when N == rfc4005;
+       N == start;
+       N == result_codes;
+       N == empty;
+       N == stop ->
+    Config;
+
 %% Skip testcases that can reasonably fail under SCTP.
 init_per_testcase(Name, Config) ->
     TCs = proplists:get_value(runlist, Config, []),
@@ -409,6 +425,9 @@ end_per_testcase(_, _) ->
     ok.
 
 %% replace/2
+%%
+%% Work around common_test running init functions inappropriately, and
+%% this accumulating more config than expected.
 
 replace(Pairs, Config)
   when is_list(Pairs) ->
@@ -429,6 +448,7 @@ tc() ->
      send_protocol_error,
      send_experimental_result,
      send_arbitrary,
+     send_proxy_info,
      send_unknown,
      send_unknown_short,
      send_unknown_mandatory,
@@ -494,6 +514,7 @@ start_services(Config) ->
                                      | ?SERVICE(SN, Grp)]),
     ok = diameter:start_service(CN, [{traffic_counters, bool()},
                                      {sequence, ?CLIENT_MASK},
+                                     {decode_format, map},
                                      {strict_arities, decode}
                                      | ?SERVICE(CN, Grp)]).
 
@@ -512,15 +533,16 @@ add_transports(Config) ->
     LRef = ?util:listen(SN,
                         [T,
                          {sender, SS},
-                         {message_cb, ST andalso {?MODULE, message, [0]}}
-                         | [{packet, hd(?util:scramble([false, raw]))}
-                            || T == sctp andalso CS]],
+                         {message_cb, ST andalso {?MODULE, message, [0]}}]
+                        ++ [{packet, hd(?util:scramble([false, raw]))}
+                            || T == sctp andalso CS]
+                        ++ [{unordered, unordered()} || T == sctp],
                         [{capabilities_cb, fun capx/2},
                          {pool_size, 8}
                          | server_apps()]
                         ++ [{spawn_opt, {erlang, spawn, []}} || CS]),
     Cs = [?util:connect(CN,
-                        [T, {sender, CS}],
+                        [T, {sender, CS} | client_opts(T)],
                         LRef,
                         [{id, Id}
                          | client_apps(R, [{'Origin-State-Id', origin(Id)}])])
@@ -530,6 +552,18 @@ add_transports(Config) ->
              Id <- [{D,E}]],
     ?util:write_priv(Config, "transport", [LRef | Cs]).
 
+unordered() ->
+    element(rand:uniform(4), {true, false, 1, 2}).
+
+client_opts(tcp) ->
+    [];
+client_opts(sctp) ->
+    [{unordered, unordered()}
+     | [{sctp_initmsg, #sctp_initmsg{num_ostreams = N,
+                                     max_instreams = 5}}
+        || N <- [rand:uniform(8)],
+           N =< 6]].
+
 server_apps() ->
     B = have_nas(),
     [{applications, [diameter_gen_base_rfc3588,
@@ -611,7 +645,6 @@ result_codes(_Config) ->
 send_ok(Config) ->
     Req = ['ACR', {'Accounting-Record-Type', ?EVENT_RECORD},
                   {'Accounting-Record-Number', 1}],
-
     ['ACA' | #{'Result-Code' := ?SUCCESS,
                'Session-Id' := _}]
         = call(Config, Req).
@@ -643,13 +676,80 @@ send_bad_answer(Config) ->
         = call(Config, Req).
 
 %% Send an ACR that the server callback answers explicitly with a
-%% protocol error.
+%% protocol error and some AVPs to check the decoding of.
 send_protocol_error(Config) ->
     Req = ['ACR', {'Accounting-Record-Type', ?EVENT_RECORD},
                   {'Accounting-Record-Number', 4}],
 
-    ?answer_message(?TOO_BUSY)
-        = call(Config, Req).
+    ['answer-message' | #{'Result-Code' := ?TOO_BUSY,
+                          'AVP' := [OLR | _]} = Avps]
+        = call(Config, Req),
+
+    #diameter_avp{name = 'OC-OLR',
+                  value = #{'OC-Sequence-Number' := 1,
+                            'OC-Report-Type' := 0,  %% HOST_REPORT
+                            'OC-Reduction-Percentage' := [25],
+                            'OC-Validity-Duration' := [60],
+                            'AVP' := [OSF]}}
+        = OLR,
+    #diameter_avp{name = 'OC-Supported-Features',
+                  value = #{} = Fs}
+        = OSF,
+    0 = maps:size(Fs),
+
+    #group{client_dict = D} = group(Config), 
+
+    if D == nas4005 ->
+            error = maps:find('Failed-AVP', Avps),
+            #{'AVP' := [_,Failed]}
+                = Avps,
+            #diameter_avp{name = 'Failed-AVP',
+                          value = #{'AVP' := [NP,FR,AP]}}
+                = Failed,
+            #diameter_avp{name = 'NAS-Port',
+                          value = 44}
+                = NP,
+            #diameter_avp{name = 'Firmware-Revision',
+                          value = 12}
+                = FR,
+            #diameter_avp{name = 'Auth-Grace-Period',
+                          value = 13}
+                = AP;
+
+       D == diameter_gen_base_rfc3588;
+       D == diameter_gen_basr_accounting ->
+            error = maps:find('Failed-AVP', Avps),
+            #{'AVP' := [_,Failed]}
+                = Avps,
+
+            #diameter_avp{name = 'Failed-AVP',
+                           value = #{'AVP' := [NP,FR,AP]}}
+                = Failed,
+            #diameter_avp{name = undefined,
+                          value = undefined}
+                = NP,
+            #diameter_avp{name = 'Firmware-Revision',
+                          value = 12}
+                = FR,
+            #diameter_avp{name = 'Auth-Grace-Period',
+                          value = 13}
+                = AP;
+
+       D == diameter_gen_base_rfc6733;
+       D == diameter_gen_acct_rfc6733 ->
+            #{'Failed-AVP' := [#{'AVP' := [NP,FR,AP]}],
+              'AVP' := [_]}
+                = Avps,
+            #diameter_avp{name = undefined,
+                          value = undefined}
+                = NP,
+            #diameter_avp{name = 'Firmware-Revision',
+                          value = 12}
+                = FR,
+            #diameter_avp{name = 'Auth-Grace-Period',
+                          value = 13}
+                = AP
+    end.
 
 %% Send a 3xxx Experimental-Result in an answer not setting the E-bit
 %% and missing a Result-Code.
@@ -671,6 +771,19 @@ send_arbitrary(Config) ->
         = call(Config, Req),
     "XXX" = string(V, Config).
 
+%% Send Proxy-Info in an ASR that the peer answers with 3xxx, and
+%% ensure that the AVP is returned.
+send_proxy_info(Config) ->
+    H0 = ?B(?util:unique_string()),
+    S0 = ?B(?util:unique_string()),
+    Req = ['ASR', {'Proxy-Info', #{'Proxy-Host'  => H0,
+                                   'Proxy-State' => S0}}],
+    ['answer-message' | #{'Result-Code' := 3999,
+                          'Proxy-Info' := [#{'Proxy-Host' := H,
+                                             'Proxy-State' := S}]}]
+        = call(Config, Req),
+    [H0, S0] = [?B(X) || X <- [H,S]].
+
 %% Send an unknown AVP (to some client) and check that it comes back.
 send_unknown(Config) ->
     Req = ['ASR', {'AVP', [#diameter_avp{code = 999,
@@ -694,12 +807,12 @@ send_unknown_short(Config, M, RC) ->
                                          data = <<17>>}]}],
     ['ASA' | #{'Session-Id' := _,
                'Result-Code' := RC,
-               'Failed-AVP' := Avps}]
+               'Failed-AVP' := [#{'AVP' := [Avp]}]}]
         = call(Config, Req),
-    [[#diameter_avp{code = 999,
-                    is_mandatory = M,
-                    data = <<17, _/binary>>}]] %% extra bits from padding
-        = failed_avps(Avps, Config).
+    #diameter_avp{code = 999,
+                  is_mandatory = M,
+                  data = <<17, _/binary>>} %% extra bits from padding
+        = Avp.
 
 %% Ditto but set the M flag.
 send_unknown_mandatory(Config) ->
@@ -708,12 +821,12 @@ send_unknown_mandatory(Config) ->
                                          data = <<17>>}]}],
     ['ASA' | #{'Session-Id' := _,
                'Result-Code' := ?AVP_UNSUPPORTED,
-               'Failed-AVP' := Avps}]
+               'Failed-AVP' := [#{'AVP' := [Avp]}]}]
         = call(Config, Req),
-    [[#diameter_avp{code = 999,
-                    is_mandatory = true,
-                    data = <<17>>}]]
-        = failed_avps(Avps, Config).
+    #diameter_avp{code = 999,
+                  is_mandatory = true,
+                  data = <<17>>}
+        = Avp.
 
 %% Ditto, and point the AVP length past the end of the message. Expect
 %% 5014 instead of 5001.
@@ -728,13 +841,13 @@ send_unexpected_mandatory_decode(Config) ->
                                          data = <<12:32>>}]}],
     ['ASA' | #{'Session-Id' := _,
                'Result-Code' := ?AVP_UNSUPPORTED,
-               'Failed-AVP' := Avps}]
+               'Failed-AVP' := [#{'AVP' := [Avp]}]}]
         = call(Config, Req),
-    [[#diameter_avp{code = 27,
-                    is_mandatory = true,
-                    value = 12,
-                    data = <<12:32>>}]]
-        = failed_avps(Avps, Config).
+    #diameter_avp{code = 27,
+                  is_mandatory = true,
+                  value = 12,
+                  data = <<12:32>>}
+        = Avp.
 
 %% Try to two Auth-Application-Id in ASR expect 5009.
 send_too_many(Config) ->
@@ -742,11 +855,11 @@ send_too_many(Config) ->
 
     ['ASA' | #{'Session-Id' := _,
                'Result-Code' := ?TOO_MANY,
-               'Failed-AVP' := Avps}]
+               'Failed-AVP' := [#{'AVP' := [Avp]}]}]
         = call(Config, Req),
-    [[#diameter_avp{name = 'Auth-Application-Id',
-                    value = 44}]]
-        = failed_avps(Avps, Config).
+    #diameter_avp{name = 'Auth-Application-Id',
+                  value = 44}
+        = Avp.
 
 %% Send an containing a faulty Grouped AVP (empty Proxy-Host in
 %% Proxy-Info) and expect that only the faulty AVP is sent in
@@ -758,12 +871,11 @@ send_grouped_error(Config) ->
                                    {'Proxy-State', ""}]]}],
     ['ASA' | #{'Session-Id' := _,
                'Result-Code' := ?INVALID_AVP_LENGTH,
-               'Failed-AVP' := Avps}]
+               'Failed-AVP' := [#{'AVP' := [Avp]}]}]
         = call(Config, Req),
-    [[#diameter_avp{name = 'Proxy-Info', value = V}]]
-        = failed_avps(Avps, Config),
-    {Empty, undefined, []} = proxy_info(V, Config),
-    <<0>> = iolist_to_binary(Empty).
+    #diameter_avp{name = 'Proxy-Info', value = #{'Proxy-Host' := H}}
+        = Avp,
+    <<0>> = ?B(H).
 
 %% Send an STR that the server ignores.
 send_noreply(Config) ->
@@ -816,9 +928,8 @@ send_invalid_avp_length(Config) ->
                'Result-Code' := ?INVALID_AVP_LENGTH,
                'Origin-Host' := _,
                'Origin-Realm' := _,
-               'Failed-AVP' := Avps}]
-        = call(Config, Req),
-    [[_]] = failed_avps(Avps, Config).
+               'Failed-AVP' := [#{'AVP' := [_]}]}]
+        = call(Config, Req).
 
 %% Send a request containing 5xxx errors that the server rejects with
 %% 3xxx.
@@ -1029,29 +1140,6 @@ send_anything(Config) ->
 
 %% ===========================================================================
 
-failed_avps(Avps, Config) ->
-    #group{client_dict = D} = proplists:get_value(group, Config),
-    [failed_avp(D, T) || T <- Avps].
-
-failed_avp(nas4005, {'nas_Failed-AVP', As}) ->
-    As;
-failed_avp(_, #'diameter_base_Failed-AVP'{'AVP' = As}) ->
-    As.
-
-proxy_info(Rec, Config) ->
-    #group{client_dict = D} = proplists:get_value(group, Config),
-    if D == nas4005 ->
-            {'nas_Proxy-Info', H, S, As}
-                = Rec,
-            {H,S,As};
-       true ->
-            #'diameter_base_Proxy-Info'{'Proxy-Host' = H,
-                                        'Proxy-State' = S,
-                                        'AVP' = As}
-                = Rec,
-            {H,S,As}
-    end.
-
 group(Config) ->
     #group{} = proplists:get_value(group, Config).
 
@@ -1092,12 +1180,12 @@ origin(N) ->
 decode(record) -> 0;
 decode(list)   -> 1;
 decode(map)    -> 2;
-decode(false)  -> 3;
+decode(none)   -> 3;
 decode(record_from_map) -> 4;
 decode(0) -> record;
 decode(1) -> list;
 decode(2) -> map;
-decode(3) -> false;
+decode(3) -> none;
 decode(4) -> record_from_map.
 
 encode(record) -> 0;
@@ -1144,16 +1232,18 @@ to_map(#diameter_packet{header = H, msg = Rec},
 
 %% No record decode: do it ourselves.
 to_map(#diameter_packet{header = H,
-                        msg = false,
+                        msg = Name,
                         bin = Bin},
-      #group{server_decoding = false,
+      #group{server_decoding = none,
              strings = B}) ->
     Opts = #{decode_format => map,
              string_decode => B,
+             avp_dictionaries => [diameter_gen_doic_rfc7683],
              strict_mbit => true,
              rfc => 6733},
-    #diameter_packet{msg = [_MsgName | _Map] = Msg}
+    #diameter_packet{msg = [MsgName | _Map] = Msg}
         = diameter_codec:decode(dict(H), Opts, Bin),
+    {MsgName, _} = {Name, Msg},  %% assert
     Msg.
 
 dict(#diameter_header{application_id = Id,
@@ -1521,24 +1611,23 @@ answer(Pkt, Req, _Peer, Name, #group{client_dict = Dict0}) ->
     #diameter_packet{header = H, msg = Ans, errors = Es} = Pkt,
     ApplId = app(Req, Name, Dict0),
     #diameter_header{application_id = ApplId} = H,  %% assert
-    Dict = dict(Ans, Dict0),
-    rec_to_map(answer(Ans, Es, Name), Dict).
+    answer(Ans, Es, Name).
 
 %% Missing Result-Code and inappropriate Experimental-Result-Code.
-answer(Rec, Es, send_experimental_result) ->
+answer(Ans, Es, send_experimental_result) ->
     [{5004, #diameter_avp{name = 'Experimental-Result'}},
      {5005, #diameter_avp{name = 'Result-Code'}}]
         =  Es,
-    Rec;
+    Ans;
 
 %% An inappropriate E-bit results in a decode error ...
-answer(Rec, Es, send_bad_answer) ->
+answer(Ans, Es, send_bad_answer) ->
     [{5004, #diameter_avp{name = 'Result-Code'}} | _] = Es,
-    Rec;
+    Ans;
 
 %% ... while other errors are reflected in Failed-AVP.
-answer(Rec, [], _) ->
-    Rec.
+answer(Ans, [], _) ->
+    Ans.
 
 app(_, send_unsupported_app, _) ->
     ?BAD_APP;
@@ -1715,11 +1804,33 @@ request(['ACR' | #{'Session-Id' := SId,
 request(['ACR' | #{'Accounting-Record-Number' := 4}],
         #diameter_caps{origin_host = {OH, _},
                        origin_realm = {OR, _}}) ->
+    %% Include a DOIC AVP that will be encoded/decoded because of
+    %% avp_dictionaries config.
+    OLR = #{'OC-Sequence-Number' => 1,
+            'OC-Report-Type' => 0,  %% HOST_REPORT
+            'OC-Reduction-Percentage' => [25],
+            'OC-Validity-Duration' => [60],
+            'AVP' => [{'OC-Supported-Features', []}]},
+    %% Include a NAS Failed-AVP AVP that will only be decoded under
+    %% that application. Encode as 'AVP' since RFC 3588 doesn't list
+    %% Failed-AVP in the answer-message grammar while RFC 6733 does.
+    NP = #diameter_avp{data = {nas4005, 'NAS-Port', 44}},
+    FR = #diameter_avp{name = 'Firmware-Revision', value = 12}, %% M=0
+    AP = #diameter_avp{name = 'Auth-Grace-Period', value = 13}, %% M=1
+    Failed = #diameter_avp{data = {diameter_gen_base_rfc3588,
+                                   'Failed-AVP',
+                                   [{'AVP', [NP,FR,AP]}]}},
     Ans = ['answer-message', {'Result-Code', ?TOO_BUSY},
                              {'Origin-Host', OH},
-                             {'Origin-Realm', OR}],
+                             {'Origin-Realm', OR},
+                             {'AVP', [{'OC-OLR', OLR}, Failed]}],
     {reply, Ans};
 
+%% send_proxy_info
+request(['ASR' | #{'Proxy-Info' := _}],
+        _) ->
+    {protocol_error, 3999};
+
 request(['ASR' | #{'Session-Id' := SId} = Avps],
         #diameter_caps{origin_host = {OH, _},
                        origin_realm = {OR, _}}) ->
diff --git a/lib/diameter/test/diameter_transport_SUITE.erl b/lib/diameter/test/diameter_transport_SUITE.erl
index 9d981d0a2b..284d2b9566 100644
--- a/lib/diameter/test/diameter_transport_SUITE.erl
+++ b/lib/diameter/test/diameter_transport_SUITE.erl
@@ -349,35 +349,40 @@ rand_bytes(N) ->
 %% start_connect/3
 
 start_connect(Prot, PortNr, Ref) ->
-    {ok, TPid, [?ADDR]} = start_connect(Prot,
-                                        {connect, Ref},
-                                        ?SVC([]),
-                                        [{raddr, ?ADDR},
-                                         {rport, PortNr},
-                                         {ip, ?ADDR},
-                                         {port, 0}]),
-    ?RECV(?TMSG({TPid, connected, _})),
+    {ok, TPid} = start_connect(Prot,
+                               {connect, Ref},
+                               ?SVC([]),
+                               [{raddr, ?ADDR},
+                                {rport, PortNr},
+                                {ip, ?ADDR},
+                                {port, 0}]),
+    connected(Prot, TPid),
     TPid.
 
+connected(sctp, TPid) ->
+    ?RECV(?TMSG({TPid, connected, _}));
+connected(tcp, TPid) ->
+    ?RECV(?TMSG({TPid, connected, _, [?ADDR]})).
+
 start_connect(sctp, T, Svc, Opts) ->
-    diameter_sctp:start(T, Svc, [{sctp_initmsg, ?SCTP_INIT} | Opts]);
+    {ok, TPid, [?ADDR]}
+        = diameter_sctp:start(T, Svc, [{sctp_initmsg, ?SCTP_INIT} | Opts]),
+    {ok, TPid};
 start_connect(tcp, T, Svc, Opts) ->
     diameter_tcp:start(T, Svc, Opts).
 
 %% start_accept/2
 
 start_accept(Prot, Ref) ->
-    {Mod, Opts} = tmod(Prot),
-    {ok, TPid, [?ADDR]} = Mod:start({accept, Ref},
-                                    ?SVC([?ADDR]),
-                                    [{port, 0} | Opts]),
+    {ok, TPid, [?ADDR]}
+        = start_accept(Prot, {accept, Ref}, ?SVC([?ADDR]), [{port, 0}]),
     ?RECV(?TMSG({TPid, connected})),
     TPid.
 
-tmod(sctp) ->
-    {diameter_sctp, [{sctp_initmsg, ?SCTP_INIT}]};
-tmod(tcp) ->
-    {diameter_tcp, []}.
+start_accept(sctp, T, Svc, Opts) ->
+    diameter_sctp:start(T, Svc, [{sctp_initmsg, ?SCTP_INIT} | Opts]);
+start_accept(tcp, T, Svc, Opts) ->
+    diameter_tcp:start(T, Svc, Opts).
 
 %% ===========================================================================
 
diff --git a/lib/diameter/vsn.mk b/lib/diameter/vsn.mk
index 4801f542fb..bfb260ed8f 100644
--- a/lib/diameter/vsn.mk
+++ b/lib/diameter/vsn.mk
@@ -17,5 +17,5 @@
 # %CopyrightEnd%
 
 APPLICATION  = diameter
-DIAMETER_VSN = 2.0
+DIAMETER_VSN = 2.1.2
 APP_VSN      = $(APPLICATION)-$(DIAMETER_VSN)$(PRE_VSN)
diff --git a/lib/edoc/doc/src/Makefile b/lib/edoc/doc/src/Makefile
index ce7945a1bb..ca9ea66e3c 100644
--- a/lib/edoc/doc/src/Makefile
+++ b/lib/edoc/doc/src/Makefile
@@ -9,11 +9,11 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # The Initial Developer of the Original Code is Ericsson Utvecklings AB.
 # Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
 # AB. All Rights Reserved.''
-# 
+#
 include $(ERL_TOP)/make/target.mk
 include $(ERL_TOP)/make/$(TARGET)/otp.mk
 
@@ -47,7 +47,7 @@ XML_REF3_FILES = \
 	edoc_lib.xml \
 	edoc_run.xml
 
-XML_PART_FILES = part.xml part_notes.xml
+XML_PART_FILES = part.xml
 XML_CHAPTER_FILES = chapter.xml
 XML_NOTES_FILES = notes.xml
 
@@ -80,10 +80,10 @@ TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -109,19 +109,19 @@ $(XML_CHAPTER_FILES): ../overview.edoc
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
 	rm -f $(MAN3DIR)/*
 	rm -f $(XML_REF3_FILES) $(XML_CHAPTER_FILES) *.html
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/edoc/doc/src/fascicules.xml b/lib/edoc/doc/src/fascicules.xml
deleted file mode 100644
index 154c8a3b6d..0000000000
--- a/lib/edoc/doc/src/fascicules.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-</fascicules>
-
diff --git a/lib/edoc/doc/src/notes.xml b/lib/edoc/doc/src/notes.xml
index 7894811c78..96d7597d83 100644
--- a/lib/edoc/doc/src/notes.xml
+++ b/lib/edoc/doc/src/notes.xml
@@ -32,6 +32,21 @@
   <p>This document describes the changes made to the EDoc
     application.</p>
 
+<section><title>Edoc 0.9.1</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    Tools are updated to show Unicode atoms correctly.</p>
+          <p>
+	    Own Id: OTP-14464</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Edoc 0.9</title>
 
     <section><title>Improvements and New Features</title>
diff --git a/lib/edoc/doc/src/part_notes.xml b/lib/edoc/doc/src/part_notes.xml
deleted file mode 100644
index 6a79435ff0..0000000000
--- a/lib/edoc/doc/src/part_notes.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2007</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>EDoc Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p><em>EDoc</em> is the Erlang program documentation generator.
-      Inspired by the Javadoc (TM) tool for the Java (TM) programming
-      language, EDoc is adapted to the conventions of the Erlang world,
-      and has several features not found in Javadoc.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/edoc/priv/Makefile b/lib/edoc/priv/Makefile
index 9873136201..45bff37b39 100644
--- a/lib/edoc/priv/Makefile
+++ b/lib/edoc/priv/Makefile
@@ -1,6 +1,6 @@
 #
 # Copyright (C) 2004, Ericsson Telecommunications
-# Author: Richard Carlsson, Bertil Karlsson 
+# Author: Richard Carlsson, Bertil Karlsson
 #
 include $(ERL_TOP)/make/target.mk
 include $(ERL_TOP)/make/$(TARGET)/otp.mk
@@ -9,9 +9,6 @@ include $(ERL_TOP)/make/$(TARGET)/otp.mk
 # Application version
 # ----------------------------------------------------
 include ../vsn.mk
-include ../../xmerl/vsn.mk
-include ../../syntax_tools/vsn.mk
-
 
 # ----------------------------------------------------
 # Release directory specification
@@ -23,21 +20,12 @@ RELSYSDIR = $(RELEASE_PATH)/lib/edoc-$(EDOC_VSN)
 # Common Macros
 #
 
-GEN_SCRIPT_SRC = edoc_generate.src
 GEN_SCRIPT = edoc_generate
 PRIV_FILES = stylesheet.css erlang.png edoc.dtd
 
-debug opt: $(GEN_SCRIPT)
-
-$(GEN_SCRIPT): ../vsn.mk ../../xmerl/vsn.mk ../../syntax_tools/vsn.mk \
-		$(GEN_SCRIPT_SRC)
-	$(vsn_verbose)sed -e "s/%EDOC_VSN%/$(EDOC_VSN)/g" \
-	    -e "s/%XMERL_VSN%/$(XMERL_VSN)/g" \
-	    -e "s/%SYNTAX_TOOLS_VSN%/$(SYNTAX_TOOLS_VSN)/g" \
-		$(GEN_SCRIPT_SRC) > $(GEN_SCRIPT)
+debug opt:
 
 clean:
-	rm -f $(GEN_SCRIPT)
 	rm -f core *~
 
 docs:
@@ -54,4 +42,3 @@ release_spec: opt
 
 
 release_docs_spec:
-
diff --git a/lib/edoc/priv/edoc_generate.src b/lib/edoc/priv/edoc_generate
index eeaa20f959..0492623c7f 100644
--- a/lib/edoc/priv/edoc_generate.src
+++ b/lib/edoc/priv/edoc_generate
@@ -10,28 +10,18 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # The Initial Developer of the Original Code is Ericsson Utvecklings AB.
-# Portions created by Ericsson are Copyright 1999-2000, Ericsson 
+# Portions created by Ericsson are Copyright 1999-2000, Ericsson
 # Utvecklings AB. All Rights Reserved.''
-# 
-
-#EDOC_DIR=/clearcase/otp/internal_tools/edoc
-EDOC_DIR=/home/otp/sgml/edoc-%EDOC_VSN%
-SYNTAX_TOOLS_DIR=/home/otp/sgml/syntax_tools-%SYNTAX_TOOLS_VSN%
-XMERL_DIR=/home/otp/sgml/xmerl-%XMERL_VSN%
+#
 
-FILE=
 APP=
 TITLE=
 VSN=
 
 while [ $# -gt 0 ]; do
     case $1 in
-    -file)
-	FILE=$2;
-	shift;
-	shift;;
     -app)
         APP=$2;
 	shift;
@@ -47,28 +37,14 @@ while [ $# -gt 0 ]; do
     esac
 done
 
-if [ -n "$FILE" ] ; then
-    EDOC_ARGS="[{layout,otpsgml_layout},{dir,\".\"},{file_suffix,\".sgml\"},{preprocess,true},{includes,[\"$XMERL_DIR/include\"]}]"
-    erl -boot start_clean -noshell \
-	-pa $EDOC_DIR/ebin \
-	-pa $SYNTAX_TOOLS_DIR/ebin \
-	-pa $XMERL_DIR/ebin \
-	-run edoc_run file $FILE $EDOC_ARGS \
-	-s erlang halt
-elif [ -n "$APP" -a -n "$TITLE" ] ; then 
+if [ -n "$APP" -a -n "$TITLE" ] ; then
     erl -boot start_clean -noshell \
-	-pa $EDOC_DIR/ebin \
-	-pa $SYNTAX_TOOLS_DIR/ebin \
-	-pa $XMERL_DIR/ebin \
 	-run edoc_run application $APP "\".\"" "[{title,$TITLE}]" \
 	-s erlang halt
-elif [ -n "$APP" -a -n "$VSN" ] ; then 
+elif [ -n "$APP" -a -n "$VSN" ] ; then
     erl -boot start_clean -noshell \
-	-pa $EDOC_DIR/ebin \
-	-pa $SYNTAX_TOOLS_DIR/ebin \
-	-pa $XMERL_DIR/ebin \
 	-run edoc_run application $APP "\".\"" "[{def,{vsn,\"$VSN\"}}]" \
 	-s erlang halt
 else
-    echo "Usage: docb_edoc [-file Filename] | [-app Appname [-title Title |-vsn Vsn]]"
+    echo "Usage: edoc_generate [-app Appname [-title Title |-vsn Vsn]]"
 fi
diff --git a/lib/edoc/src/Makefile b/lib/edoc/src/Makefile
index 4e5a4182da..ea2f45dc4c 100644
--- a/lib/edoc/src/Makefile
+++ b/lib/edoc/src/Makefile
@@ -29,8 +29,7 @@ SOURCES= \
 	edoc.erl edoc_data.erl edoc_doclet.erl edoc_extract.erl \
 	edoc_layout.erl edoc_lib.erl edoc_macros.erl edoc_parser.erl \
 	edoc_refs.erl edoc_report.erl edoc_run.erl edoc_scanner.erl \
-	edoc_specs.erl edoc_tags.erl edoc_types.erl edoc_wiki.erl \
-	otpsgml_layout.erl
+	edoc_specs.erl edoc_tags.erl edoc_types.erl edoc_wiki.erl
 
 OBJECTS=$(SOURCES:%.erl=$(EBIN)/%.$(EMULATOR)) $(APP_TARGET) $(APPUP_TARGET)
 
diff --git a/lib/edoc/src/edoc.app.src b/lib/edoc/src/edoc.app.src
index e4b9040c78..43343e2ae8 100644
--- a/lib/edoc/src/edoc.app.src
+++ b/lib/edoc/src/edoc.app.src
@@ -18,8 +18,7 @@
              edoc_specs,
 	     edoc_tags,
 	     edoc_types,
-	     edoc_wiki,
-	     otpsgml_layout]},
+	     edoc_wiki]},
   {registered,[]},
   {applications, [compiler,kernel,stdlib,syntax_tools]},
   {env, []},
diff --git a/lib/edoc/src/edoc_doclet.erl b/lib/edoc/src/edoc_doclet.erl
index 6e17ec0af0..0e084e619e 100644
--- a/lib/edoc/src/edoc_doclet.erl
+++ b/lib/edoc/src/edoc_doclet.erl
@@ -198,7 +198,7 @@ source({M, Name, Path}, Dir, Suffix, Env, Set, Private, Hidden,
 		    {Set, Error}
 	    end;
 	R ->
-	    report("skipping source file '~ts': ~P.", [File, R, 15]),
+	    report("skipping source file '~ts': ~tP.", [File, R, 15]),
 	    {Set, true}
     end.
 
diff --git a/lib/edoc/src/edoc_layout.erl b/lib/edoc/src/edoc_layout.erl
index eafab0588e..baa147410b 100644
--- a/lib/edoc/src/edoc_layout.erl
+++ b/lib/edoc/src/edoc_layout.erl
@@ -608,7 +608,7 @@ etypef([Cs | L], St, O, R, Opts) ->
 app_fix(L, Opts) ->
     try
         {"//" ++ R1,L2} = app_fix1(L, 1),
-        [App, Mod] = string:tokens(R1, "/"),
+        [App, Mod] = string:lexemes(R1, "/"),
         "//" ++ atom(App, Opts) ++ "/" ++ atom(Mod, Opts) ++ L2
     catch _:_ -> L
     end.
@@ -1120,13 +1120,13 @@ ot_integer(E) ->
     {integer,0,list_to_integer(get_attrval(value, E))}.
 
 ot_range(E) ->
-    [I1, I2] = string:tokens(get_attrval(value, E), "."),
+    [I1, I2] = string:lexemes(get_attrval(value, E), "."),
     {type,0,range,[{integer,0,list_to_integer(I1)},
                    {integer,0,list_to_integer(I2)}]}.
 
 ot_binary(E) ->
     {Base, Unit} =
-        case string:tokens(get_attrval(value, E), ",:*><") of
+        case string:lexemes(get_attrval(value, E), ",:*><") of
             [] ->
                 {0, 0};
             ["_",B] ->
diff --git a/lib/edoc/src/edoc_lib.erl b/lib/edoc/src/edoc_lib.erl
index ebdb0f79f6..d00a283794 100644
--- a/lib/edoc/src/edoc_lib.erl
+++ b/lib/edoc/src/edoc_lib.erl
@@ -541,13 +541,13 @@ uri_get_http_1(Result, URI) ->
 	    Reason = inet:format_error(R),
 	    {error, http_errmsg(Reason, URI)};
 	{ok, R} ->
-	    Reason = io_lib:format("bad return value ~P", [R, 5]),
+	    Reason = io_lib:format("bad return value ~tP", [R, 5]),
 	    {error, http_errmsg(Reason, URI)};
 	{'EXIT', R} ->
-	    Reason = io_lib:format("crashed with reason ~w", [R]),
+	    Reason = io_lib:format("crashed with reason ~tw", [R]),
 	    {error, http_errmsg(Reason, URI)};
 	R ->
-	    Reason = io_lib:format("uncaught throw: ~w", [R]),
+	    Reason = io_lib:format("uncaught throw: ~tw", [R]),
 	    {error, http_errmsg(Reason, URI)}
     end.
 
@@ -603,7 +603,7 @@ filename([]) ->
 filename(N) when is_atom(N) ->
     atom_to_list(N);
 filename(N) ->
-    report("bad filename: `~P'.", [N, 25]),
+    report("bad filename: `~tP'.", [N, 25]),
     exit(error).
 
 %% @private
@@ -1000,7 +1000,7 @@ run_plugin(Name, Key, Default, Fun, Opts) when is_atom(Name) ->
 	{ok, Value} ->
 	    Value;
 	R ->
-	    report("error in ~ts '~w': ~P.", [Name, Module, R, 20]),
+	    report("error in ~ts '~w': ~tP.", [Name, Module, R, 20]),
 	    exit(error)
     end.
 
@@ -1009,7 +1009,7 @@ get_plugin(Key, Default, Opts) ->
 	M when is_atom(M) ->
 	    M;
 	Other ->
-	    report("bad value for option '~w': ~P.", [Key, Other, 10]),
+	    report("bad value for option '~w': ~tP.", [Key, Other, 10]),
 	    exit(error)
     end.
 
diff --git a/lib/edoc/src/edoc_run.erl b/lib/edoc/src/edoc_run.erl
index c88c6cfd78..50aba0a930 100644
--- a/lib/edoc/src/edoc_run.erl
+++ b/lib/edoc/src/edoc_run.erl
@@ -150,7 +150,7 @@ file(Args) ->
 
 -spec invalid_args(string(), args()) -> no_return().
 invalid_args(Where, Args) ->
-    report("invalid arguments to ~ts: ~w.", [Where, Args]),
+    report("invalid arguments to ~ts: ~tw.", [Where, Args]),
     shutdown_error().
 
 run(F) ->
@@ -159,10 +159,10 @@ run(F) ->
 	{ok, _} ->
 	    shutdown_ok();
 	{'EXIT', E} ->
-	    report("edoc terminated abnormally: ~P.", [E, 10]),
+	    report("edoc terminated abnormally: ~tP.", [E, 10]),
 	    shutdown_error();
 	Thrown ->
-	    report("internal error: throw without catch in edoc: ~P.",
+	    report("internal error: throw without catch in edoc: ~tP.",
 		   [Thrown, 15]),
 	    shutdown_error()
     end.
diff --git a/lib/edoc/src/edoc_specs.erl b/lib/edoc/src/edoc_specs.erl
index fb04bfce0e..26b7202462 100644
--- a/lib/edoc/src/edoc_specs.erl
+++ b/lib/edoc/src/edoc_specs.erl
@@ -83,7 +83,7 @@ spec(Form, Clause) ->
 %% the given Erlang spec and an empty list of arguments.
 dummy_spec(Form) ->
     {#t_name{name = Name}, Arity, TypeSpecs} = get_spec(Form),
-    As = string:join(lists:duplicate(Arity, "_X"), ","),
+    As = lists:join(",", lists:duplicate(Arity, "_X")),
     S = lists:flatten(io_lib:format("~p(~s) -> true\n", [Name, As])),
     #tag{name = spec, line = get_line(element(2, hd(TypeSpecs))),
          origin = code, data = S}.
diff --git a/lib/edoc/src/edoc_types.erl b/lib/edoc/src/edoc_types.erl
index ccc3169767..510f9513b2 100644
--- a/lib/edoc/src/edoc_types.erl
+++ b/lib/edoc/src/edoc_types.erl
@@ -107,7 +107,7 @@ to_xml(#t_paren{type = T}, Env) ->
 to_xml(#t_nonempty_list{type = T}, Env) ->
     {nonempty_list, [wrap_utype(T, Env)]};
 to_xml(#t_atom{val = V}, _Env) ->
-    {atom, [{value, io_lib:write(V)}], []};
+    {atom, [{value, atom_to_list(V)}], []};
 to_xml(#t_integer{val = V}, _Env) ->
     {integer, [{value, integer_to_list(V)}], []};
 to_xml(#t_integer_range{from = From, to = To}, _Env) ->
diff --git a/lib/edoc/src/otpsgml_layout.erl b/lib/edoc/src/otpsgml_layout.erl
deleted file mode 100644
index 295daed551..0000000000
--- a/lib/edoc/src/otpsgml_layout.erl
+++ /dev/null
@@ -1,836 +0,0 @@
-%% =====================================================================
-%% Licensed under the Apache License, Version 2.0 (the "License"); you may
-%% not use this file except in compliance with the License. You may obtain
-%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%%
-%% Alternatively, you may use this file under the terms of the GNU Lesser
-%% General Public License (the "LGPL") as published by the Free Software
-%% Foundation; either version 2.1, or (at your option) any later version.
-%% If you wish to allow use of your version of this file only under the
-%% terms of the LGPL, you should delete the provisions above and replace
-%% them with the notice and other provisions required by the LGPL; see
-%% <http://www.gnu.org/licenses/>. If you do not delete the provisions
-%% above, a recipient may use your version of this file under the terms of
-%% either the Apache License or the LGPL.
-%%
-%% @author Richard Carlsson <[email protected]>
-%% @author Kenneth Lundin <[email protected]>
-%% @copyright 2001-2004 Richard Carlsson
-%% @see edoc_layout
-%% @end
-%% =====================================================================
-
-%% @doc The OTP SGML layout module for EDoc. See the module {@link edoc}
-%% for details on usage.
-
-%% Note that this is written so that it is *not* depending on edoc.hrl!
-
--module(otpsgml_layout).
-
--export([module/2, overview/2,type/1]).
-
--import(edoc_report, [report/2]).
-
--include_lib("xmerl/include/xmerl.hrl").
-
--define(SGML_EXPORT, xmerl_otpsgml).
--define(DEFAULT_XML_EXPORT, ?SGML_EXPORT).
--define(STYLESHEET, "stylesheet.css").
--define(NL, "\n").
--define(DESCRIPTION_TITLE, "Description").
--define(DESCRIPTION_LABEL, "description").
--define(DATA_TYPES_TITLE, "Data Types").
--define(DATA_TYPES_LABEL, "types").
--define(FUNCTION_INDEX_TITLE, "Function Index").
--define(FUNCTION_INDEX_LABEL, "index").
--define(FUNCTIONS_TITLE, "Function Details").
--define(FUNCTIONS_LABEL, "functions").
-
-
-%% @doc The layout function.
-%%
-%% Options:
-%% <dl>
-%%  <dt>{@type {index_columns, integer()@}}
-%%  </dt>
-%%  <dd>Specifies the number of column pairs used for the function
-%%      index tables. The default value is 1.
-%%  </dd>
-%%  <dt>{@type {stylesheet, string()@}}
-%%  </dt>
-%%  <dd>Specifies the URI used for referencing the stylesheet. The
-%%      default value is `"stylesheet.css"'. If an empty string is
-%%      specified, no stylesheet reference will be generated.
-%%  </dd>
-%%  <dt>{@type {xml_export, Module::atom()@}}
-%%  </dt>
-%%  <dd>Specifies an {@link //xmerl. `xmerl'} callback module to be
-%%      used for exporting the documentation. See {@link
-%%      //xmerl/xmerl:export_simple/3} for details.
-%%  </dd>
-%% </dl>
-%%
-%% @see edoc:layout/2
-
--record(opts, {root, stylesheet, index_columns}).
-
-module(Element, Options) ->
-    XML = layout_module(Element, init_opts(Element, Options)),
-    Export = proplists:get_value(xml_export, Options,
-				 ?DEFAULT_XML_EXPORT),
-    xmerl:export_simple([XML], Export, []).
-
-% Put layout options in a data structure for easier access.
-
-init_opts(Element, Options) ->
-    R = #opts{root = get_attrval(root, Element),
-	      index_columns = proplists:get_value(index_columns,
-						  Options, 1)
-	     },
-    case proplists:get_value(stylesheet, Options) of
-	undefined ->
-	    S = edoc_lib:join_uri(R#opts.root, ?STYLESHEET),
-	    R#opts{stylesheet = S};
-	"" ->
-	    R;  % don't use any stylesheet
-	S when is_list(S) ->
-	    R#opts{stylesheet = S}; 
-	_ ->
-	    report("bad value for option `stylesheet'.", []),
-	    exit(error)
-    end.
-
-
-%% =====================================================================
-%% XML-BASED LAYOUT ENGINE
-%% =====================================================================
-
-%% We assume that we have expanded XML data.
-
-%% <!ELEMENT module (moduleName, moduleFullName, behaviour*, description?,
-%%                   author*, version?, since?, copyright?, deprecated?,
-%%                   see*, reference*, typedecls?, functions)>
-%% <!ATTLIST module
-%%   root CDATA #IMPLIED>
-%% <!ELEMENT moduleName (#PCDATA)>
-%% <!ELEMENT moduleFullName (#PCDATA)>
-%% <!ELEMENT behaviour (#PCDATA)>
-%% <!ATTLIST behaviour
-%%   href CDATA #IMPLIED>
-%% <!ELEMENT description (briefDescription, fullDescription?)>
-%% <!ELEMENT briefDescription (#PCDATA)>
-%% <!ELEMENT fullDescription (#PCDATA)>
-%% <!ELEMENT author EMPTY>
-%% <!ATTLIST author
-%%   name CDATA #REQUIRED
-%%   email CDATA #IMPLIED
-%%   website CDATA #IMPLIED>
-%% <!ELEMENT version (#PCDATA)>
-%% <!ELEMENT since (#PCDATA)>
-%% <!ELEMENT copyright (#PCDATA)>
-%% <!ELEMENT deprecated (description)>
-%% <!ELEMENT see (#PCDATA)>
-%% <!ATTLIST see
-%%   name CDATA #REQUIRED
-%%   href CDATA #IMPLIED>
-%% <!ELEMENT reference (#PCDATA)>
-%% <!ELEMENT typedecls (typedecl+)>
-%% <!ELEMENT functions (function+)>
-
-layout_module(#xmlElement{name = module, content = Es}=E, _Opts) ->
-    Name = get_attrval(name, E),
-    Desc = get_content(description, Es),
-    ShortDesc = get_content(briefDescription, Desc),
-    FullDesc = get_content(fullDescription, Desc),
-    Functions = [E || E <- get_content(functions, Es)],
-    SortedFs = lists:sort([{function_name(E), E} || E <- Functions]),
-    Types = get_content(typedecls, Es),
-    SortedTs = lists:sort([{type_name(E), E} || E <- Types]),
-    Header = {header, [
-		       ?NL,{title, [Name]},
-		       ?NL,{prepared, [""]},
-		       ?NL,{responsible, [""]},
-		       ?NL,{docno, ["1"]},
-		       ?NL,{approved, [""]},
-		       ?NL,{checked, [""]},
-		       ?NL,{date, [""]},
-		       ?NL,{rev, ["A"]},
-		       ?NL,{file, [Name++".sgml"]}
-		      ]},
-    Module = {module, [Name]},
-    ModuleSummary = {modulesummary, ShortDesc},
-    {Short,Long} = find_first_p(FullDesc,[]),
-    Description = {description, [?NL,{p,Short}|Long]++[?NL|types(SortedTs)]},
-    Funcs = functions(SortedFs),
-    Authors = {authors, authors(Es)},
-    See = sees1(Es),
-    {erlref, [
-	      ?NL,Header,
-	      ?NL,Module,
-	      ?NL,ModuleSummary,
-	      ?NL,Description,
-	      ?NL,Funcs,
-	      ?NL,See,
-	      ?NL,Authors
-	     ]
-    }.
-
-stylesheet(Opts) ->
-    case Opts#opts.stylesheet of
-	undefined ->
-	    [];
-	CSS ->
-	    [{link, [{rel, "stylesheet"},
-		     {type, "text/css"},
-		     {href, CSS}], []},
-	     ?NL]
-    end.
-
-% doc_index(FullDesc, Functions, Types) ->
-%     case doc_index_rows(FullDesc, Functions, Types) of
-% 	[] -> [];
-% 	Rs ->
-% 	    [{ul, [{li, [{a, [{href, local_label(R)}], [T]}]}
-% 		   || {T, R} <- Rs]}]
-%     end.
-
-% doc_index_rows(FullDesc, Functions, Types) ->
-%     (if FullDesc == [] -> [];
-% 	true -> [{?DESCRIPTION_TITLE, ?DESCRIPTION_LABEL}]
-%      end
-%      ++ if Types == [] -> [];
-% 	   true -> [{?DATA_TYPES_TITLE, ?DATA_TYPES_LABEL}]
-% 	end
-%      ++ if Functions == [] -> [];
-% 	   true -> [{?FUNCTION_INDEX_TITLE, ?FUNCTION_INDEX_LABEL},
-% 		    {?FUNCTIONS_TITLE, ?FUNCTIONS_LABEL}]
-% 	end).
-
-% function_index(Fs, Cols) ->
-%     case function_index_rows(Fs, Cols, []) of
-% 	[] -> [];
-% 	Rows ->
-% 	    [?NL,
-% 	     {h2, [{a, [{name, ?FUNCTION_INDEX_LABEL}],
-% 		    [?FUNCTION_INDEX_TITLE]}]},
-% 	     ?NL,
-% 	     {table, [{width, "100%"}, {border, 1}], Rows},
-% 	     ?NL]
-%     end.
-
-% function_index_rows(Fs, Cols, Title) ->
-%     Rows = (length(Fs) + (Cols - 1)) div Cols,
-%     (if Title == [] -> [];
-% 	true -> [{tr, [{th, [{colspan, Cols * 2}, {align, left}],
-% 			[Title]}]},
-% 		 ?NL]
-%      end
-%      ++ lists:flatmap(fun index_row/1,
-% 		      edoc_lib:transpose(edoc_lib:segment(Fs, Rows)))).
-
-% index_row(Fs) ->
-%     [{tr, lists:flatmap(fun index_col/1, Fs)}, ?NL].
-
-% index_col({Name, F=#xmlElement{content = Es}}) ->
-%     [{td, [{valign, "top"}], label_href([Name], F)},
-%      {td, index_desc(Es)}].
-
-index_desc(Es) ->
-    Desc = get_content(description, Es),
-    case get_content(briefDescription, Desc) of
-	[] ->
-	    equiv(Es);    % no description at all if no equiv
-	ShortDesc ->
-	    ShortDesc
-    end.
-
-% label_href(Content, F) ->
-%     case get_attrval(label, F) of
-% 	"" -> Content;
-% 	Ref -> [{a, [{href, local_label(Ref)}], Content}]
-%     end.
-
-
-%% <!ELEMENT function (args, typespec?, equiv?, description?, since?,
-%%                     deprecated?, see*)>
-%% <!ATTLIST function
-%%   name CDATA #REQUIRED
-%%   arity CDATA #REQUIRED
-%%   exported NMTOKEN(yes | no) #REQUIRED
-%%   label CDATA #IMPLIED>
-%% <!ELEMENT args (arg*)>
-%% <!ELEMENT arg description?>
-%% <!ATTLIST arg name CDATA #REQUIRED>
-
-
-%% <!ELEMENT equiv (expr, see?)>
-%% <!ELEMENT expr (#PCDATA)>
-
-% functions(Fs) ->
-%     Es = lists:flatmap(fun ({Name, E}) -> function(Name, E) end, Fs),
-%     if Es == [] -> [];
-%        true ->
-% 	    [?NL,
-% 	     {h2, [{a, [{name, ?FUNCTIONS_LABEL}], [?FUNCTIONS_TITLE]}]},
-% 	     ?NL | Es]
-%     end.
-
-functions(Fs) ->
-    Es = lists:flatmap(fun ({Name, E}) -> function(Name, E) end, Fs),
-    if Es == [] -> [];
-       true ->
-	    {funcs, Es}
-    end.
-
-% is_exported(E) ->
-%     case get_attrval(exported, E) of
-% 	"yes" -> true;
-% 	_ -> false
-%     end.
-
-% function(Name, E=#xmlElement{content = Es}) ->
-%     ([?NL, {h3, label_anchor([Name], E)}, ?NL]
-%      ++ case typespec(get_content(typespec, Es)) of
-% 	    [] ->
-% 		signature(get_content(arguments, Es),
-% 			  get_text(functionName, Es));
-% 	    Spec -> Spec
-% 	end
-%      ++ equiv(Es)
-%      ++ deprecated(Es, "function")
-%      ++ fulldesc(Es)
-%      ++ since(Es)
-%      ++ sees(Es)).
-
-function(_Name, E=#xmlElement{content = Es}) ->
-    TypeSpec = get_content(typespec, Es),
-    [?NL,{func, [ ?NL,
-		  {name, 
-%			  case typespec(get_content(typespec, Es)) of
-			  case funcheader(TypeSpec) of
-			      [] ->
-				  signature(get_content(args, Es),
-					    get_attrval(name, E));
-			      Spec -> Spec
-			  end
-			 },
-		  ?NL,{fsummary, fsummary(Es)},
-%		  ?NL,{type, local_types(TypeSpec)},
-		  ?NL,local_types(TypeSpec),
-		  ?NL,{desc, label_anchor(E)++fulldesc(Es)++sees(Es)}
-	   ]}].
-
-fsummary([]) -> ["\s"];
-fsummary(Es) ->
-    Desc = get_content(description, Es),
-    case get_content(briefDescription, Desc) of
-	[] ->
-	    fsummary_equiv(Es);    % no description at all if no equiv
-	ShortDesc ->
-	    ShortDesc
-    end.
-
-
-fsummary_equiv(Es) ->
-    case get_content(equiv, Es) of
-	[] -> ["\s"];
-	Es1 ->
-	    case get_content(expr, Es1) of
-		[] -> ["\s"];
-		[Expr] ->
-		    ["Equivalent to ", Expr, ".",?NL]
-	    end
-    end.
-
-
-function_name(E) ->
-    get_attrval(name, E) ++ "/" ++ get_attrval(arity, E).
-
-label_anchor(E) ->
-    case get_attrval(label, E) of
-	"" -> [];
-	Ref -> [{marker, [{id, Ref}],[]},?NL]
-    end.
-
-label_anchor(Content, E) ->
-    case get_attrval(label, E) of
-	"" -> Content;
-	Ref -> {p,[{marker, [{id, Ref}],[]},
-		   {em, Content}]}
-    end.
-
-%% <!ELEMENT args (arg*)>
-%% <!ELEMENT arg (argName, description?)>
-%% <!ELEMENT argName (#PCDATA)>
-
-%% This is currently only done for functions without type spec.
-
-signature(Es, Name) -> 
-%    [{tt, [Name, "("] ++ seq(fun arg/1, Es) ++ [") -> term()", ?NL]}].
-    [Name, "("] ++ seq(fun arg/1, Es) ++ [") -> term()", ?NL].
-
-arg(#xmlElement{content = Es}) ->
-    [get_text(argName, Es)].
-
-%% <!ELEMENT typespec (erlangName, type, localdef*)>
-
-% typespec([]) -> [];
-% typespec(Es) ->
-%     [{p, ([{tt, ([t_name(get_elem(qualifiedName, Es))]
-% 		 ++ t_type(get_content(type, Es)))}]
-% 	  ++ local_defs(get_elem(definition, Es)))},
-%      ?NL].
-
-funcheader([]) -> [];
-funcheader(Es) ->
-    [t_name(get_elem(erlangName, Es))] ++ t_utype(get_elem(type, Es)).
-
-local_types([]) -> [];
-local_types(Es) ->
-    local_defs2(get_elem(localdef, Es)).
-
-local_defs2([]) -> [];
-local_defs2(Es) ->
-    {type,[?NL | [{v, localdef(E)} || E <- Es]]}.
-
-%% <!ELEMENT typedecl (typedef, description?)>
-%% <!ELEMENT typedef (erlangName, argtypes, type?, localdef*)>
-
-types([]) -> [];
-types(Ts) ->
-    Es = lists:flatmap(fun ({Name, E}) -> typedecl(Name, E) end, Ts),
-    [?NL,
-%    {h2, [{a, [{name, ?DATA_TYPES_LABEL}],
-%	   [?DATA_TYPES_TITLE]}]},
-%    ?NL | Es]
-     {p,[{marker, [{id, ?DATA_TYPES_LABEL}],[]},
-	 {em,[?DATA_TYPES_TITLE]}]},
-     ?NL, {taglist,[?NL|Es]}].
-
-%%type(Name, E=#xmlElement{content = Es}) ->
-%%    ([?NL, {h3, label_anchor([Name, "()"], E)}, ?NL]
-%%     ++ [{p, typedef(get_content(typedef, Es))}, ?NL]
-%%     ++ fulldesc(Es)).
-typedecl(_Name, #xmlElement{content = Es}) ->
-    [{tag, typedef(get_content(typedef, Es))},?NL,{item,fulldesc(Es)},?NL].
-
-
-type_name(#xmlElement{content = Es}) ->
-    t_name(get_elem(erlangName, get_content(typedef, Es))).
-
-typedef(Es) ->
-    Name = ([t_name(get_elem(erlangName, Es)), "("]
-  	    ++ seq(fun t_utype_elem/1, get_content(argtypes, Es), [")"])),
-    (case get_elem(type, Es) of
- 	 [] -> [{b, ["abstract datatype"]}, ": ", {tt, Name}];
- 	 Type ->
-	     [{tt, Name ++ [" = "] ++ t_utype(Type)}]
-     end
-     ++ local_defs(get_elem(localdef, Es))).
-
-local_defs([]) -> [];
-local_defs(Es) ->
-    [?NL, {ul, [{li, [{tt, localdef(E)}]} || E <- Es]}].
-
-localdef(E = #xmlElement{content = Es}) ->
-    (case get_elem(typevar, Es) of
-	 [] -> 
-	     label_anchor(t_abstype(get_content(abstype, Es)), E);
-	 [V] ->
-	     t_var(V)
-     end
-     ++ [" = "] ++ t_utype(get_elem(type, Es))).
-
-fulldesc(Es) ->
-    case get_content(fullDescription, get_content(description, Es)) of
-%	[] -> [?NL];
-	[] -> index_desc(Es);
-%	Desc -> [{p, Desc}, ?NL]
-	Desc ->
-	    {Short,Long} = find_first_p(Desc,[]),
-	    [?NL,{p,Short}|Long] ++[?NL]
-    end.
-
-find_first_p([#xmlElement{name=p}|_]=Long,Short) ->
-    {lists:reverse(Short),Long};
-find_first_p([H|T],Short) ->
-    find_first_p(T,[H|Short]);
-find_first_p([],Short) ->
-    {lists:reverse(Short),[]}.
-
-
-sees1(Es) ->
-    case get_elem(see, Es) of
-	[] -> [];
-	Es1 ->
-	    {section,[{title,["See also"]},{p,seq(fun see/1, Es1, [])}]}
-    end.
-
-sees(Es) ->
-    case get_elem(see, Es) of
-	[] -> [];
-	Es1 ->
-	    [{p, [{em, ["See also:"]}, " "] ++ seq(fun see/1, Es1, ["."])},
-	     ?NL]
-    end.
-
-see(E=#xmlElement{content = Es}) ->
-    see(E,Es).
-
-see(E, Es) ->
-    case get_attrval(href, E) of
-	"" -> Es;
-	Ref -> 
-	    case lists:reverse(Ref) of
-		"lmgs.ppa_"++Ppa -> 
-		    App = lists:reverse(Ppa),
-		    [{seealso, [{marker, App++"_app"}], [App]},"(6)"];
-		"lmgs."++Dom -> 
-		    Mod = lists:reverse(Dom),
-		    [{seealso, [{marker, Mod}], [Mod]},"(3)"];
-		_ -> 
-		    [{seealso, [{marker, Ref}], Es}]
-	    end
-    end.
-
-equiv(Es) ->
-    case get_content(equiv, Es) of
-	[] -> ["\s"];
-	Es1 ->
-	    case get_content(expr, Es1) of
-		[] -> [];
-		[Expr] ->
-%		    Expr1 = {tt, [Expr]},
-%		    Expr1 = {c, [Expr]},
-		    Expr1 = [Expr],
-		    Expr2 = case get_elem(see, Es1) of
-				[] ->
-				    {c,Expr1};
-				[E=#xmlElement{}] ->
-%				    see(E,Expr1)
- 				    case get_attrval(href, E) of
- 					"" ->
- 					    {c,Expr1};
- 					Ref ->
- 					    {seealso, [{marker, Ref}], Expr1}
- 				    end
-			    end,
-		    [{p, ["Equivalent to ", Expr2, "."]}, ?NL]
-	    end
-    end.
-
-% replace_minus_with_percent([$-|T]) ->
-%     [$%|T];
-% replace_minus_with_percent([H|T]) ->
-%     [H|replace_minus_with_percent(T)].
-
-copyright(Es) ->
-    case get_content(copyright, Es) of
-	[] -> [];
-	Es1 ->
-	    [{p, ["Copyright \251 " | Es1]}, ?NL]
-    end.
-
-version(Es) ->
-    case get_content(version, Es) of
-	[] -> [];
-	Es1 ->
-	    [{p, [{b, ["Version:"]}, " " | Es1]}, ?NL]
-    end.
-
-since(Es) ->
-    case get_content(since, Es) of
-	[] -> [];
-	Es1 ->
-	    [{p, [{b, ["Introduced in:"]}, " " | Es1]}, ?NL]
-    end.
-
-deprecated(Es, S) ->
-    Es1 = get_content(description, get_content(deprecated, Es)),
-    case get_content(fullDescription, Es1) of
-	[] -> [];
-	Es2 ->
-	    [{p, [{b, ["This " ++ S ++ " is deprecated:"]}, " " | Es2]},
-	     ?NL]
-    end.
-
-% behaviours(Es) ->
-%     case get_elem(behaviour, Es) of
-% 	[] -> [];
-% 	Es1 ->
-% 	    [{p, [{b, ["Behaviour:"]}, " "] ++ seq(fun behaviour/1, Es1, ["."])},
-% 	     ?NL]
-%     end.
-
-% behaviour(E=#xmlElement{content = Es}) ->
-%     case get_attrval(href, E) of
-% 	"" -> [{tt, Es}];
-% 	Ref -> [{a, [{href, Ref}], [{tt, Es}]}]
-%     end.
-
-authors(Es) ->
-    case get_elem(author, Es) of
-	[] -> [?NL,{aname,["\s"]},?NL,{email,["\s"]}];
-	Es1 -> [?NL|seq(fun author/1, Es1, [])]
-%
-%	    [{p, [{b, ["Authors:"]}, " "] ++ seq(fun author/1, Es1, ["."])},
-%	     ?NL]
-    end.
-
-
-%% <!ATTLIST author
-%%   name CDATA #REQUIRED
-%%   email CDATA #IMPLIED
-%%   website CDATA #IMPLIED>
-
-author(E=#xmlElement{}) ->
-    Name = case get_attrval(name, E) of
-	       [] -> "\s";
-	       N -> N
-	   end,
-    Mail = case get_attrval(email, E) of
-	       [] -> "\s";
-	       M -> M
-	   end,
-    [?NL,{aname,[Name]},?NL,{email,[Mail]}].
-
-% author(E=#xmlElement{}) ->
-%     Name = get_attrval(name, E),
-%     Mail = get_attrval(email, E),
-%     URI = get_attrval(website, E),
-%     (if Name == Mail ->
-% 	     [{a, [{href, "mailto:" ++ Mail}],[{tt, [Mail]}]}];
-% 	true ->
-% 	     if Mail == "" -> [Name];
-% 		true -> [Name, " (", {a, [{href, "mailto:" ++ Mail}],
-% 				      [{tt, [Mail]}]}, ")"]
-% 	     end
-%      end
-%      ++ if URI == "" -> [];
-% 	   true -> [" [", {em, ["web site:"]}, " ",
-% 		    {tt, [{a, [{href, URI}], [URI]}]}, "]"]
-% 	end).
-
-references(Es) ->
-    case get_elem(reference, Es) of
-	[] -> [];
-	Es1 ->
-	    [{p, [{b, ["References"]},
-		  {ul, [{li, C} || #xmlElement{content = C} <- Es1]}]},
-	     ?NL]
-    end.
-
-t_name([E]) ->
-    N = get_attrval(name, E),
-    case get_attrval(module, E) of
-	"" -> N;
-	M ->
-	    S = M ++ ":" ++ N,
-	    case get_attrval(app, E) of
-		"" -> S;
-		A -> "//" ++ A ++ "/" ++ S
-	    end
-    end.
-
-t_utype([E]) ->
-    t_utype_elem(E).
-
-t_utype_elem(E=#xmlElement{content = Es}) ->
-    case get_attrval(name, E) of
-	"" -> t_type(Es);
-	Name ->
-	    T = t_type(Es),
-	    case T of
-		[Name] -> T;    % avoid generating "Foo::Foo"
-		T -> [Name] ++ ["::"] ++ T
-	    end
-    end.
-
-t_type([E=#xmlElement{name = typevar}]) ->
-    t_var(E);
-t_type([E=#xmlElement{name = atom}]) ->
-    t_atom(E);
-t_type([E=#xmlElement{name = integer}]) ->
-    t_integer(E);
-t_type([E=#xmlElement{name = float}]) ->
-    t_float(E);
-t_type([#xmlElement{name = nil}]) ->
-    t_nil();
-t_type([#xmlElement{name = list, content = Es}]) ->
-    t_list(Es);
-t_type([#xmlElement{name = tuple, content = Es}]) ->
-    t_tuple(Es);
-t_type([#xmlElement{name = 'fun', content = Es}]) ->
-    t_fun(Es);
-t_type([E = #xmlElement{name = abstype, content = Es}]) ->
-    T = t_abstype(Es),
-%    see(E,T);
-     case get_attrval(href, E) of
- 	"" -> T;
- %	Ref -> [{seealso, [{marker, Ref}], T}]
- 	_Ref -> T
-     end;
-t_type([#xmlElement{name = union, content = Es}]) ->
-    t_union(Es).
-
-t_var(E) ->
-    [get_attrval(name, E)].
-
-
-t_atom(E) ->
-    [get_attrval(value, E)].
-
-t_integer(E) ->
-    [get_attrval(value, E)].
-
-t_float(E) ->
-    [get_attrval(value, E)].
-
-t_nil() ->
-    ["[]"].
-
-t_list(Es) ->
-    ["["] ++ t_utype(get_elem(type, Es)) ++ ["]"].
-
-t_tuple(Es) ->
-    ["{"] ++ seq(fun t_utype_elem/1, Es, ["}"]).
-
-t_fun(Es) ->
-    ["("] ++ seq(fun t_utype_elem/1, get_content(argtypes, Es),
-		 [") -> "] ++ t_utype(get_elem(type, Es))).
-
-t_abstype(Es) ->
-%    ([t_name(get_elem(qualifiedName, Es)), "("]
-%     ++ seq(fun t_type_elem/1, get_elem(type, Es), [")"])).
-    case split_at_colon(t_name(get_elem(erlangName, Es)),[]) of
-	{Mod,Type} -> 
-	    [Type, "("] ++ 
-		seq(fun t_utype_elem/1, get_elem(type, Es), [")"]) ++ 
-		[" (see module ", Mod, ")"];
-	Type ->
-	    [Type, "("] ++ 
-		seq(fun t_utype_elem/1, get_elem(type, Es), [")"])
-    end.
-
-%% Split at one colon, but not at two (or more)
-split_at_colon([$:,$:|_]=Rest,Acc) ->
-    lists:reverse(Acc)++Rest;
-split_at_colon([$:|Type],Acc) ->
-    {lists:reverse(Acc),Type};
-split_at_colon([Char|Rest],Acc) ->
-    split_at_colon(Rest,[Char|Acc]);
-split_at_colon([],Acc) ->
-    lists:reverse(Acc).
-
-% t_par(Es) ->
-%     T = t_type(get_content(type, Es)),
-%     case get_elem(variable, Es) of
-% 	[] -> T;
-% 	[V0] -> case t_variable(V0) of
-% 		   T -> T;
-% 		   V -> V ++ ["::"] ++ T
-% 	       end
-%     end.
-
-% t_par_elem(#xmlElement{content = Es}) -> t_par(Es).
-
-t_union(Es) ->
-    seq(fun t_utype_elem/1, Es, " | ", []).
-
-seq(F, Es) ->
-    seq(F, Es, []).
-
-seq(F, Es, Tail) ->
-    seq(F, Es, ", ", Tail).
-
-seq(F, [E], _Sep, Tail) ->
-    F(E) ++ Tail;
-seq(F, [E | Es], Sep, Tail) ->
-    F(E) ++ [Sep] ++ seq(F, Es, Sep, Tail);
-seq(_F, [], _Sep, Tail) ->
-    Tail.
-
-get_elem(Name, [#xmlElement{name = Name} = E | Es]) ->
-    [E | get_elem(Name, Es)];
-get_elem(Name, [_ | Es]) ->
-    get_elem(Name, Es);
-get_elem(_, []) ->
-    [].
-
-get_attr(Name, [#xmlAttribute{name = Name} = A | As]) ->
-    [A | get_attr(Name, As)];
-get_attr(Name, [_ | As]) ->
-    get_attr(Name, As);
-get_attr(_, []) ->
-    [].
-
-get_attrval(Name, #xmlElement{attributes = As}) ->
-    case get_attr(Name, As) of
-	[#xmlAttribute{value = V}] ->
-	    V;
-	[] -> ""
-    end.
-
-get_content(Name, Es) ->
-    case get_elem(Name, Es) of
-	[#xmlElement{content = Es1}] ->
-	    Es1;
-	[] -> []
-    end.
-
-get_text(Name, Es) ->
-    case get_content(Name, Es) of
-	[#xmlText{value = Text}] ->
-	    Text;
-	[] -> ""
-    end.
-
-% local_label(R) ->
-%     "#" ++ R.
-
-xml(Title, CSS, Body) ->
-    {html, [?NL,
-	    {head, [?NL,
-		    {title, [Title]},
-		    ?NL] ++ CSS},
-	    ?NL,
-	    {body, [{bgcolor, "white"}], Body},
-	    ?NL]
-    }.
-
-%% ---------------------------------------------------------------------
-
- type(E) ->
-     type(E, []).
-
-% type(E, Ds) ->
-%     xmerl:export_simple_content(t_utype_elem(E) ++ local_defs(Ds),
-% 				?HTML_EXPORT).
- type(E, Ds) ->
-     xmerl:export_simple_content(t_utype_elem(E) ++ local_defs(Ds),
- 				?SGML_EXPORT).
-
-overview(E=#xmlElement{name = overview, content = Es}, Options) ->
-    Opts = init_opts(E, Options),
-    Title = get_text(title, Es),
-    Desc = get_content(description, Es),
-%    ShortDesc = get_content(briefDescription, Desc),
-    FullDesc = get_content(fullDescription, Desc),
-    Body = ([?NL, {h1, [Title]}, ?NL]
-%	    ++ ShortDesc
-	    ++ copyright(Es)
-	    ++ version(Es)
-	    ++ since(Es)
-	    ++ deprecated(Es, "application")
-	    ++ authors(Es)
-	    ++ references(Es)
-	    ++ sees(Es)
-	    ++ FullDesc),
-    XML = xml(Title, stylesheet(Opts), Body),
-    xmerl:export_simple([XML], ?SGML_EXPORT, []).
diff --git a/lib/edoc/vsn.mk b/lib/edoc/vsn.mk
index 1a933b2ad8..065944ccef 100644
--- a/lib/edoc/vsn.mk
+++ b/lib/edoc/vsn.mk
@@ -1 +1 @@
-EDOC_VSN = 0.9
+EDOC_VSN = 0.9.1
diff --git a/lib/eldap/doc/src/fascicules.xml b/lib/eldap/doc/src/fascicules.xml
deleted file mode 100644
index cbc266cd30..0000000000
--- a/lib/eldap/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="usersguide" href="usersguide_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="release_notes" href="release_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/eldap/doc/src/note.gif b/lib/eldap/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/eldap/doc/src/note.gif
+++ /dev/null
diff --git a/lib/eldap/doc/src/warning.gif b/lib/eldap/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/eldap/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/eldap/src/eldap.erl b/lib/eldap/src/eldap.erl
index 625309271b..2b84872b92 100644
--- a/lib/eldap/src/eldap.erl
+++ b/lib/eldap/src/eldap.erl
@@ -1368,9 +1368,9 @@ rm_leading_slash(Tail)      -> Tail.
 parse_attributes([$?|Tail]) ->
     case split_string(Tail,$?) of
         {[],Attributes} ->
-	    {[],{attributes,string:tokens(Attributes,",")}};
+	    {[],{attributes,string:lexemes(Attributes,",")}};
         {Attributes,Rest} ->
-            {Rest,{attributes,string:tokens(Attributes,",")}}
+            {Rest,{attributes,string:lexemes(Attributes,",")}}
     end.
 
 parse_hostport(Str) ->
diff --git a/lib/erl_docgen/doc/src/fasc_dtds.xml b/lib/erl_docgen/doc/src/fasc_dtds.xml
deleted file mode 100644
index 390ae6c5d1..0000000000
--- a/lib/erl_docgen/doc/src/fasc_dtds.xml
+++ /dev/null
@@ -1,116 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE chapter SYSTEM "chapter.dtd">
-
-<chapter>
-  <header>
-    <copyright>
-      <year>2007</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Fascicules DTDs</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-    <file>fasc_dtds.xml</file>
-  </header>
-
-  <section>
-    <title>The fascicules DTD</title>
-
-    <p>The <c>fascicules</c> DTD is a special kind of DTD which can be
-      used to specify the different parts of the documentation, and
-      which one of those should be shown as default.</p>
-
-    <p>Example:</p>
-
-    <pre><![CDATA[
-<?xml version="1.0" encoding="latin1" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-</fascicules>
-    ]]></pre>
-
-    <p>In the example, it is specified that the documentation for this
-      application consists of three parts: User's Guide, where
-      the "cover page" (with the two frames) is located in
-      <c>part_frame.html</c>, Reference Manual with the cover page
-      <c>ref_man_frame.html</c> and Release Notes with the cover page
-      <c>part_notes_frame.html</c>.</p>
-
-    <p>As a result, at the top of the left frame in the generated HTML
-      documentation, there will be corresponding links to User's Guide,
-      Reference Manual and Release Notes.</p>
-
-    <p>The attribute <c>entry="yes"</c> specifies that it is
-      the Reference Manual which should be shown as default. This means
-      that when generating the HTML files, <c>application_frame.html</c>
-      will be copied to <c>index.html</c>.</p>
-
-    <note>
-      <p>DocBuilder assumes that the XML file written according to
-	the <c>fascicules</c> DTD is called <c>fascicules.xml</c>.</p>
-    </note>
-
-    <p>This file is optional. If it does not exist, there are no links
-      to other parts of the documentation (as they are not known) in
-      the left frame, and no <c>index.html</c> is created.</p>
-  </section>
-
-  <section>
-    <marker id="fasciculesTAG"></marker>
-    <title>&lt;fascicules&gt;</title>
-
-    <p>Top level tag for the <c>fascicules</c> DTD.</p>
-
-    <p>Contains one or more
-      <seealso marker="#fasciculeTAG">&lt;fascicule&gt;</seealso>.</p>
-  </section>
-
-  <section>
-    <marker id="fasciculeTAG"></marker>
-    <title>&lt;fascicule&gt;</title>
-
-    <p>Specifies properties for one "part" of the documentation for an
-      application.</p>
-
-    <p>Contains plain text, the name of this part.</p>
-
-    <p>The <c>file</c> attribute should specify the file name for
-      the corresponding <c>part</c> or <c>application</c>, without
-      the <c>.xml</c> extension.</p>
-
-    <p>The <c>href</c> attribute should specify the file name for
-      the corresponding HTML cover page file, without the <c>.html</c>
-      extension.</p>
-
-    <p>The optional <c>entry="yes"|"no"</c> attribute specifies if
-      the HTML cover page should be copied to <c>index.html</c> or
-      not. Default is <c>"no"</c>.</p>
-  </section>
-</chapter>
-
diff --git a/lib/erl_docgen/doc/src/fascicules.xml b/lib/erl_docgen/doc/src/fascicules.xml
deleted file mode 100644
index 154c8a3b6d..0000000000
--- a/lib/erl_docgen/doc/src/fascicules.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-</fascicules>
-
diff --git a/lib/erl_docgen/doc/src/notes.xml b/lib/erl_docgen/doc/src/notes.xml
index 59a268d6ac..59c65665d4 100644
--- a/lib/erl_docgen/doc/src/notes.xml
+++ b/lib/erl_docgen/doc/src/notes.xml
@@ -31,7 +31,22 @@
   </header>
   <p>This document describes the changes made to the <em>erl_docgen</em> application.</p>
 
-  <section><title>Erl_Docgen 0.7</title>
+  <section><title>Erl_Docgen 0.7.1</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Erl_Docgen 0.7</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
       <list>
diff --git a/lib/erl_docgen/priv/dtd/chapter.dtd b/lib/erl_docgen/priv/dtd/chapter.dtd
index a4c9e4040d..8d940b90f7 100644
--- a/lib/erl_docgen/priv/dtd/chapter.dtd
+++ b/lib/erl_docgen/priv/dtd/chapter.dtd
@@ -31,7 +31,7 @@
 <!-- Structure -->
 
 <!ELEMENT chapter             (header,(%block;|quote|warning|note|dont|do|br|
-                               image|marker|table)*,section+) >
+                               image|marker|table)*,section*) >
 <!ELEMENT section             (marker*,title,
                                (%block;|quote|warning|note|dont|do|br|image|marker|
                                 table|section)*) >
diff --git a/lib/erl_docgen/priv/xsl/db_funcs.xsl b/lib/erl_docgen/priv/xsl/db_funcs.xsl
new file mode 100644
index 0000000000..8178ce44fb
--- /dev/null
+++ b/lib/erl_docgen/priv/xsl/db_funcs.xsl
@@ -0,0 +1,136 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     #
+     # %CopyrightBegin%
+     #
+     # Copyright Ericsson AB 2009-2017. All Rights Reserved.
+     #
+     # Licensed under the Apache License, Version 2.0 (the "License");
+     # you may not use this file except in compliance with the License.
+     # You may obtain a copy of the License at
+     #
+     #     http://www.apache.org/licenses/LICENSE-2.0
+     #
+     # Unless required by applicable law or agreed to in writing, software
+     # distributed under the License is distributed on an "AS IS" BASIS,
+     # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     # See the License for the specific language governing permissions and
+     # limitations under the License.
+     #
+     # %CopyrightEnd%
+
+     -->
+<xsl:stylesheet version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:erl="http://erlang.org"
+  xmlns:func="http://exslt.org/functions"
+  extension-element-prefixes="func"
+  xmlns:fo="http://www.w3.org/1999/XSL/Format"
+  xmlns:fn="http://www.w3.org/2005/02/xpath-functions">
+
+  <!-- Used from code template to trim the newline/cr after the tag
+       and spaces/tabs between them
+  -->
+  <xsl:variable name="newlinechars" select="'&#10;&#13;'" />
+  <xsl:variable name="spacechars" select="'&#09; '" />
+
+  <func:function name="erl:code_trim">
+    <xsl:param name="string" />
+
+    <xsl:variable name="leftresult" select="erl:code_ltrim($string, $string)"/>
+    <xsl:variable name="result" select="erl:code_rtrim($leftresult, $leftresult)"/>
+
+    <func:result select="$result"/>
+  </func:function>
+
+  <func:function name="erl:code_rtrim">
+    <xsl:param name="string" />
+    <xsl:param name="origstring" />
+    
+    <xsl:variable name="length" select="string-length($string)" />
+
+    <xsl:variable name="result">
+      <xsl:if test="$length &gt; 0">
+	<xsl:choose>
+          <xsl:when test="contains($spacechars, substring($string, $length, 1))">
+	    <xsl:value-of select="erl:code_rtrim(substring($string, 1, $length - 1), $origstring)" />
+          </xsl:when>
+          <xsl:when test="contains($newlinechars, substring($string, $length, 1))">
+	    <xsl:value-of select="erl:code_rtrim_1(substring($string, 1, $length - 1))" />
+          </xsl:when>	
+          <xsl:otherwise>
+            <xsl:value-of select="$origstring" />
+          </xsl:otherwise>
+	</xsl:choose>
+    </xsl:if>
+    </xsl:variable>
+
+    <func:result select="$result" />
+  </func:function>
+  
+  <func:function name="erl:code_rtrim_1">
+    <xsl:param name="string" />
+    
+    <xsl:variable name="length" select="string-length($string)" />
+
+    <xsl:variable name="result">
+      <xsl:if test="$length &gt; 0">
+	<xsl:choose>
+          <xsl:when test="contains($newlinechars, substring($string, $length, 1))">
+	    <xsl:value-of select="erl:code_rtrim_1(substring($string, 1, $length - 1))" />
+          </xsl:when>	
+          <xsl:otherwise>
+	    <xsl:value-of select="erl:code_rtrim($string, $string)" />	    
+            <!--xsl:value-of select="$string" /-->
+          </xsl:otherwise>
+	</xsl:choose>
+      </xsl:if>
+    </xsl:variable>
+
+    <func:result select="$result" />
+  </func:function>
+  
+  <func:function name="erl:code_ltrim">
+    <xsl:param name="string" />
+    <xsl:param name="origstring" />
+
+    <xsl:variable name="result">
+      <xsl:if test="string-length($string) &gt; 0">
+	<xsl:choose>
+          <xsl:when test="contains($spacechars, substring($string, 1, 1))">
+	    <xsl:value-of select="erl:code_ltrim(substring($string, 2), $origstring)" />
+          </xsl:when>
+          <xsl:when test="contains($newlinechars, substring($string, 1, 1))">
+	    <xsl:value-of select="erl:code_ltrim_1(substring($string, 2))" />
+          </xsl:when>	
+          <xsl:otherwise>
+            <xsl:value-of select="$origstring" />
+          </xsl:otherwise>
+	</xsl:choose>
+      </xsl:if>
+    </xsl:variable>
+
+    <func:result select="$result" />
+  </func:function>
+  
+  <func:function name="erl:code_ltrim_1">
+    <xsl:param name="string" />
+
+    <xsl:variable name="result">
+      <xsl:if test="string-length($string) &gt; 0">
+	<xsl:choose>
+          <xsl:when test="contains($newlinechars, substring($string, 1, 1))">
+	    <xsl:value-of select="erl:code_ltrim_1(substring($string, 2))" />
+          </xsl:when>	
+          <xsl:otherwise>
+	    <xsl:value-of select="erl:code_ltrim($string, $string)" />
+            <!--xsl:value-of select="$string" /-->
+          </xsl:otherwise>
+	</xsl:choose>
+      </xsl:if>
+    </xsl:variable>
+    
+    <func:result select="$result" />
+  </func:function>
+
+</xsl:stylesheet>
diff --git a/lib/erl_docgen/priv/xsl/db_html.xsl b/lib/erl_docgen/priv/xsl/db_html.xsl
index d863c056e9..75614392fb 100644
--- a/lib/erl_docgen/priv/xsl/db_html.xsl
+++ b/lib/erl_docgen/priv/xsl/db_html.xsl
@@ -30,6 +30,7 @@
   xmlns:fn="http://www.w3.org/2005/02/xpath-functions">
 
   <xsl:include href="db_html_params.xsl"/>
+  <xsl:include href="db_funcs.xsl"/>
 
   <func:function name="erl:flip_first_char">
     <xsl:param name="in"/>
@@ -1132,7 +1133,14 @@
     <xsl:variable name="codenum">
       <xsl:number level="any" from="chapter" count="code"/>
     </xsl:variable>
-    <div class="example"><pre><xsl:apply-templates/></pre></div>
+      <xsl:choose> 
+	<xsl:when test="not(descendant::anno)">
+ 	   <div class="example"><pre><xsl:value-of select="erl:code_trim(text())"/></pre></div>
+ 	</xsl:when>
+	<xsl:otherwise>    
+	   <div class="example"><pre><xsl:apply-templates/></pre></div>
+	</xsl:otherwise>
+      </xsl:choose>	
   </xsl:template>
 
   <!-- Pre -->
@@ -1803,7 +1811,7 @@
   <!-- Modulesummary -->
   <xsl:template match="modulesummary">
     <xsl:param name="partnum"/>
-    <h3><a name="module-sumary" href="#module-sumary">Module Summary</a></h3>
+    <h3><a name="module-summary" href="#module-summary">Module Summary</a></h3>
     <div class="REFBODY module-summary-body">
       <xsl:apply-templates>
         <xsl:with-param name="partnum" select="$partnum"/>
@@ -1826,7 +1834,7 @@
   <!-- Libsummary -->
   <xsl:template match="libsummary">
     <xsl:param name="partnum"/>
-    <h3><a name="library-sumary" href="#library-sumary">Library Summary</a></h3>
+    <h3><a name="library-summary" href="#library-summary">Library Summary</a></h3>
     <div class="REFBODY library-summary-body">
       <xsl:apply-templates>
         <xsl:with-param name="partnum" select="$partnum"/>
diff --git a/lib/erl_docgen/priv/xsl/db_pdf.xsl b/lib/erl_docgen/priv/xsl/db_pdf.xsl
index 99263847fb..46de66bcd8 100644
--- a/lib/erl_docgen/priv/xsl/db_pdf.xsl
+++ b/lib/erl_docgen/priv/xsl/db_pdf.xsl
@@ -23,12 +23,16 @@
 <xsl:stylesheet version="1.0"
   xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
   xmlns:exsl="http://exslt.org/common"
-  extension-element-prefixes="exsl"
-  xmlns:fo="http://www.w3.org/1999/XSL/Format">
+  xmlns:func="http://exslt.org/functions"
+  xmlns:erl="http://erlang.org"
+  extension-element-prefixes="exsl func"
+  xmlns:fo="http://www.w3.org/1999/XSL/Format"
+  xmlns:fn="http://www.w3.org/2005/02/xpath-functions">
 
   <xsl:output method="xml" indent="yes"/>
 
   <xsl:include href="db_pdf_params.xsl"/>
+  <xsl:include href="db_funcs.xsl"/>
 
   <!-- Start of Dialyzer type/spec tags.
        See also the templates matching "name" and "seealso" as well as
@@ -687,7 +691,7 @@
         <fo:block xsl:use-attribute-sets="cover.inner.copyrightnotice">
           <xsl:value-of select="/book/header/legalnotice"/>
 
-        <!--   
+        <!--
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at
@@ -744,12 +748,12 @@
         <fo:bookmark internal-destination="{generate-id(header/title)}"
           starting-state="hide">
           <fo:bookmark-title><xsl:value-of select="header/title"/></fo:bookmark-title>
-          
+
           <xsl:call-template name="bookmarks2">
             <xsl:with-param name="entries"
               select="chapter[header/title]"/>
           </xsl:call-template>
-          
+
         </fo:bookmark>
       </xsl:for-each>
     </xsl:if>
@@ -1122,52 +1126,60 @@
   <!-- Note -->
   <xsl:template match="note">
     <xsl:param name="partnum"/>
-    <fo:block xsl:use-attribute-sets="note">
-        <fo:block xsl:use-attribute-sets="note-warning-title">
-            <xsl:text>Note:</xsl:text>
-        </fo:block>
-      <xsl:apply-templates>
-        <xsl:with-param name="partnum" select="$partnum"/>
-      </xsl:apply-templates>
+    <fo:block xsl:use-attribute-sets="note-warning">
+      <fo:block xsl:use-attribute-sets="note-title">
+	<xsl:text>Note:</xsl:text>
+      </fo:block>
+      <fo:block xsl:use-attribute-sets="note-warning-content">
+	<xsl:apply-templates>
+          <xsl:with-param name="partnum" select="$partnum"/>
+	</xsl:apply-templates>
+      </fo:block>
     </fo:block>
   </xsl:template>
 
   <!-- Warning -->
   <xsl:template match="warning">
     <xsl:param name="partnum"/>
-    <fo:block xsl:use-attribute-sets="warning">
-        <fo:block xsl:use-attribute-sets="note-warning-title">
-            <xsl:text>Warning:</xsl:text>
-        </fo:block>
-      <xsl:apply-templates>
-        <xsl:with-param name="partnum" select="$partnum"/>
-      </xsl:apply-templates>
+    <fo:block xsl:use-attribute-sets="note-warning">
+      <fo:block xsl:use-attribute-sets="warning-title">
+	<xsl:text>Warning:</xsl:text>
+      </fo:block>
+      <fo:block xsl:use-attribute-sets="note-warning-content">
+	<xsl:apply-templates>
+          <xsl:with-param name="partnum" select="$partnum"/>
+	</xsl:apply-templates>
+      </fo:block>
     </fo:block>
   </xsl:template>
 
   <!-- Do -->
   <xsl:template match="do">
     <xsl:param name="partnum"/>
-    <fo:block xsl:use-attribute-sets="do">
-        <fo:block xsl:use-attribute-sets="note-warning-title">
-            <xsl:text>Do:</xsl:text>
-        </fo:block>
-      <xsl:apply-templates>
-        <xsl:with-param name="partnum" select="$partnum"/>
-      </xsl:apply-templates>
+    <fo:block xsl:use-attribute-sets="note-warning">
+      <fo:block xsl:use-attribute-sets="note-title">
+	<xsl:text>Do:</xsl:text>
+      </fo:block>
+      <fo:block xsl:use-attribute-sets="note-warning-content">
+	<xsl:apply-templates>
+          <xsl:with-param name="partnum" select="$partnum"/>
+	</xsl:apply-templates>
+      </fo:block>
     </fo:block>
   </xsl:template>
 
   <!-- Dont -->
   <xsl:template match="dont">
     <xsl:param name="partnum"/>
-    <fo:block xsl:use-attribute-sets="dont">
-        <fo:block xsl:use-attribute-sets="note-warning-title">
-            <xsl:text>Don't:</xsl:text>
-        </fo:block>
-      <xsl:apply-templates>
-        <xsl:with-param name="partnum" select="$partnum"/>
-      </xsl:apply-templates>
+    <fo:block xsl:use-attribute-sets="note-warning">
+      <fo:block xsl:use-attribute-sets="warning-title">
+	<xsl:text>Don't:</xsl:text>
+      </fo:block>
+      <fo:block xsl:use-attribute-sets="note-warning-content">
+	<xsl:apply-templates>
+          <xsl:with-param name="partnum" select="$partnum"/>
+	</xsl:apply-templates>
+      </fo:block>
     </fo:block>
   </xsl:template>
 
@@ -1226,7 +1238,14 @@
     </xsl:variable>
 
     <fo:block xsl:use-attribute-sets="code">
-      <xsl:apply-templates select="text()"/>
+      <xsl:choose> 
+	<xsl:when test="not(descendant::anno)">
+	  <xsl:value-of select="erl:code_trim(text())"/>
+	</xsl:when>
+	<xsl:otherwise>
+	  <xsl:apply-templates/>
+	</xsl:otherwise>
+      </xsl:choose>	
     </fo:block>
 
     <xsl:if test="@caption">
diff --git a/lib/erl_docgen/priv/xsl/db_pdf_params.xsl b/lib/erl_docgen/priv/xsl/db_pdf_params.xsl
index d9a150d2d9..99da29c2ac 100644
--- a/lib/erl_docgen/priv/xsl/db_pdf_params.xsl
+++ b/lib/erl_docgen/priv/xsl/db_pdf_params.xsl
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!--      
+<!--
      #
      # %CopyrightBegin%
      #
-     # Copyright Ericsson AB 2009-2016. All Rights Reserved.
+     # Copyright Ericsson AB 2009-2017. All Rights Reserved.
      #
      # Licensed under the Apache License, Version 2.0 (the "License");
      # you may not use this file except in compliance with the License.
@@ -18,7 +18,7 @@
      # limitations under the License.
      #
      # %CopyrightEnd%
-     
+
      -->
 <xsl:stylesheet version="1.0"
   xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
@@ -45,7 +45,7 @@
   <xsl:param name="page-width">210mm</xsl:param>
 
   <!-- Paper size: US Letter (279x216 mm) -->
-  <!-- 
+  <!--
   <xsl:param name="page-height">11in</xsl:param>
   <xsl:param name="page-width">8.5in</xsl:param>
   -->
@@ -248,86 +248,82 @@
   </xsl:attribute-set>
 
   <xsl:attribute-set name="code">
-    <xsl:attribute name="background-color">#e0e0ff</xsl:attribute>
+    <xsl:attribute name="background-color">#f1f3f5</xsl:attribute>
+    <xsl:attribute name="border-style">solid</xsl:attribute>
+    <xsl:attribute name="border-color">#dee2e6</xsl:attribute><!-- dee2e6-->
+    <xsl:attribute name="border-width">0.3mm</xsl:attribute>
     <xsl:attribute name="font-family">DejaVuSansMono, monospace</xsl:attribute>
     <xsl:attribute name="font-size">0.8em</xsl:attribute>
-    <xsl:attribute name="keep-together.within-page">auto</xsl:attribute>
+    <xsl:attribute name="keep-together.within-page">3</xsl:attribute>
     <xsl:attribute name="linefeed-treatment">preserve</xsl:attribute>
-    <xsl:attribute name="padding-before">0em</xsl:attribute>
-    <xsl:attribute name="padding-after">1em</xsl:attribute>
-    <xsl:attribute name="space-after">1em</xsl:attribute>
-    <xsl:attribute name="space-before">2em</xsl:attribute>
-    <xsl:attribute name="margin-left">0.5em</xsl:attribute>
-    <xsl:attribute name="margin-right">0.5em</xsl:attribute>
+    <xsl:attribute name="padding-before">1.5mm</xsl:attribute>
+    <xsl:attribute name="padding-after">1mm</xsl:attribute>
+    <xsl:attribute name="padding-left">1mm</xsl:attribute>
+    <xsl:attribute name="padding-right">1mm</xsl:attribute>
+    <xsl:attribute name="margin-left">1mm</xsl:attribute>
+    <xsl:attribute name="margin-right">1mm</xsl:attribute>
     <xsl:attribute name="white-space-collapse">false</xsl:attribute>
     <xsl:attribute name="white-space-treatment">preserve</xsl:attribute>
     <xsl:attribute name="wrap-option">no-wrap</xsl:attribute>
+    <xsl:attribute name="space-after">0.5em</xsl:attribute>
+    <xsl:attribute name="space-before">0.5em</xsl:attribute>
   </xsl:attribute-set>
 
-
-
   <xsl:attribute-set name="toc.level1">
     <xsl:attribute name="space-before">1em</xsl:attribute>
-  </xsl:attribute-set> 
-
-<xsl:attribute-set name="note">
-    <xsl:attribute name="background-color">#d0fed0</xsl:attribute>
-    <xsl:attribute name="space-after">1em</xsl:attribute>
-    <xsl:attribute name="space-before">2em</xsl:attribute>
-    <xsl:attribute name="text-align">justify</xsl:attribute>
-    <xsl:attribute name="padding-before">1em</xsl:attribute>
-    <xsl:attribute name="padding-after">0.3em</xsl:attribute>
-    <xsl:attribute name="padding-left">0.5em</xsl:attribute>
-    <xsl:attribute name="padding-right">0.5em</xsl:attribute>
-    <xsl:attribute name="margin-left">0.5em</xsl:attribute>
-    <xsl:attribute name="margin-right">0.5em</xsl:attribute>
-    <xsl:attribute name="keep-together.within-page">always</xsl:attribute>
   </xsl:attribute-set>
 
-<xsl:attribute-set name="warning">
-  <xsl:attribute name="background-color">#ffd6d6</xsl:attribute> 
-    <xsl:attribute name="space-after">1em</xsl:attribute>
-    <xsl:attribute name="space-before">2em</xsl:attribute>
-    <xsl:attribute name="text-align">justify</xsl:attribute>
-    <xsl:attribute name="padding-before">1em</xsl:attribute>
-    <xsl:attribute name="padding-after">0.3em</xsl:attribute>
-    <xsl:attribute name="padding-left">0.5em</xsl:attribute>
-    <xsl:attribute name="padding-right">0.5em</xsl:attribute>
-    <xsl:attribute name="margin-left">0.5em</xsl:attribute>
-    <xsl:attribute name="margin-right">0.5em</xsl:attribute>
-    <xsl:attribute name="keep-together.within-page">always</xsl:attribute>
+  <xsl:attribute-set name="note-title">
+    <xsl:attribute name="space-before">0.5em</xsl:attribute>
+    <xsl:attribute name="border-style">solid</xsl:attribute>
+    <xsl:attribute name="border-bottom-width">0mm</xsl:attribute>
+    <xsl:attribute name="border-color">#495057</xsl:attribute>
+    <xsl:attribute name="background-color">#2b8a3e</xsl:attribute>
+    <xsl:attribute name="font-weight">bold</xsl:attribute>
+    <xsl:attribute name="color">#fefefe</xsl:attribute>
+    <xsl:attribute name="padding-before">1mm</xsl:attribute>
+    <xsl:attribute name="padding-after">0.5mm</xsl:attribute>
+    <xsl:attribute name="padding-left">1mm</xsl:attribute>
+    <xsl:attribute name="padding-right">1mm</xsl:attribute>
+    <xsl:attribute name="margin-left">1mm</xsl:attribute>
+    <xsl:attribute name="margin-right">1mm</xsl:attribute>
+    <xsl:attribute name="font-size">1.33em</xsl:attribute>
   </xsl:attribute-set>
 
-<xsl:attribute-set name="do">
-    <xsl:attribute name="background-color">#d0fed0</xsl:attribute>
-    <xsl:attribute name="space-after">1em</xsl:attribute>
-    <xsl:attribute name="space-before">2em</xsl:attribute>
-    <xsl:attribute name="text-align">justify</xsl:attribute>
-    <xsl:attribute name="padding-before">1em</xsl:attribute>
-    <xsl:attribute name="padding-after">0.3em</xsl:attribute>
-    <xsl:attribute name="padding-left">0.5em</xsl:attribute>
-    <xsl:attribute name="padding-right">0.5em</xsl:attribute>
-    <xsl:attribute name="margin-left">0.5em</xsl:attribute>
-    <xsl:attribute name="margin-right">0.5em</xsl:attribute>
+  <xsl:attribute-set name="note-warning">
     <xsl:attribute name="keep-together.within-page">always</xsl:attribute>
   </xsl:attribute-set>
 
-<xsl:attribute-set name="dont">
-  <xsl:attribute name="background-color">#ffd6d6</xsl:attribute> 
-    <xsl:attribute name="space-after">1em</xsl:attribute>
-    <xsl:attribute name="space-before">2em</xsl:attribute>
-    <xsl:attribute name="text-align">justify</xsl:attribute>
-    <xsl:attribute name="padding-before">1em</xsl:attribute>
-    <xsl:attribute name="padding-after">0.3em</xsl:attribute>
-    <xsl:attribute name="padding-left">0.5em</xsl:attribute>
-    <xsl:attribute name="padding-right">0.5em</xsl:attribute>
-    <xsl:attribute name="margin-left">0.5em</xsl:attribute>
-    <xsl:attribute name="margin-right">0.5em</xsl:attribute>
-    <xsl:attribute name="keep-together.within-page">always</xsl:attribute>
+  <xsl:attribute-set name="warning-title">
+    <xsl:attribute name="space-before">0.5em</xsl:attribute>
+    <xsl:attribute name="border-style">solid</xsl:attribute>
+    <xsl:attribute name="border-bottom-width">0mm</xsl:attribute>
+    <xsl:attribute name="border-color">#495057</xsl:attribute>
+    <xsl:attribute name="background-color">#c92a2a</xsl:attribute>
+    <xsl:attribute name="font-weight">bold</xsl:attribute>
+    <xsl:attribute name="color">#fefefe</xsl:attribute>
+    <xsl:attribute name="padding-before">1mm</xsl:attribute>
+    <xsl:attribute name="padding-after">0.5mm</xsl:attribute>
+    <xsl:attribute name="padding-left">1mm</xsl:attribute>
+    <xsl:attribute name="padding-right">1mm</xsl:attribute>
+    <xsl:attribute name="margin-left">1mm</xsl:attribute>
+    <xsl:attribute name="margin-right">1mm</xsl:attribute>
+    <xsl:attribute name="font-size">1.33em</xsl:attribute>
   </xsl:attribute-set>
 
-  <xsl:attribute-set name="note-warning-title">
-    <xsl:attribute name="font-size">1.33em</xsl:attribute>
+  <xsl:attribute-set name="note-warning-content">
+    <xsl:attribute name="space-after">0.5em</xsl:attribute>
+    <xsl:attribute name="border-style">solid</xsl:attribute>
+    <xsl:attribute name="border-top-width">0mm</xsl:attribute>
+    <xsl:attribute name="border-color">#495057</xsl:attribute>
+    <xsl:attribute name="background-color">#f8f9fa</xsl:attribute>
+    <xsl:attribute name="text-align">justify</xsl:attribute>
+    <xsl:attribute name="padding-before">1mm</xsl:attribute>
+    <xsl:attribute name="padding-after">0.5mm</xsl:attribute>
+    <xsl:attribute name="padding-left">1mm</xsl:attribute>
+    <xsl:attribute name="padding-right">1mm</xsl:attribute>
+    <xsl:attribute name="margin-left">1mm</xsl:attribute>
+    <xsl:attribute name="margin-right">1mm</xsl:attribute>
   </xsl:attribute-set>
 
   <xsl:attribute-set name="module-header">
@@ -354,7 +350,7 @@
     <xsl:attribute name="keep-with-next.within-page">always</xsl:attribute>
     <xsl:attribute name="space-after">0.25em</xsl:attribute>
     <!-- xsl:attribute name="space-before">1.5em</xsl:attribute -->
-  </xsl:attribute-set> 
+  </xsl:attribute-set>
 
   <xsl:attribute-set name="type-listblock">
     <xsl:attribute name="provisional-distance-between-starts">1.8em</xsl:attribute>
diff --git a/lib/erl_docgen/src/docgen_edoc_xml_cb.erl b/lib/erl_docgen/src/docgen_edoc_xml_cb.erl
index 7cdbb502d9..67e6e33c93 100644
--- a/lib/erl_docgen/src/docgen_edoc_xml_cb.erl
+++ b/lib/erl_docgen/src/docgen_edoc_xml_cb.erl
@@ -11,7 +11,7 @@
 %% limitations under the License.
 %%
 %% Copyright (c) 2001-2016 Richard Carlsson. Parts written by Ericsson
-%% are Copyright (c) Ericsson AB 2001-2012. All Rights Reserved.
+%% are Copyright (c) Ericsson AB 2001-2017. All Rights Reserved.
 %%
 
 -module(docgen_edoc_xml_cb).
@@ -113,7 +113,7 @@ root_attributes(Element, Opts) ->
 %% epp:default_encoding/0 returns 'utf8'
 reformat_encoding(utf8) -> "UTF-8";
 reformat_encoding(List) when is_list(List) ->
-    case string:to_lower(List) of
+    case string:lowercase(List) of
         "utf8" -> "UTF-8";
         _ -> List
     end;
diff --git a/lib/erl_docgen/src/docgen_otp_specs.erl b/lib/erl_docgen/src/docgen_otp_specs.erl
index 6c41147e27..9f2b401f93 100644
--- a/lib/erl_docgen/src/docgen_otp_specs.erl
+++ b/lib/erl_docgen/src/docgen_otp_specs.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -297,7 +297,7 @@ indent(L) ->
 app_fix(L) ->
     try
         {"//" ++ R1,L2} = app_fix(L, 1),
-        [App, Mod] = string:tokens(R1, "/"),
+        [App, Mod] = string:lexemes(R1, "/"),
         "//" ++ atom(App) ++ "/" ++ atom(Mod) ++ L2
     catch _:_ -> L
     end.
@@ -406,7 +406,7 @@ t_var(E) ->
     [get_attrval(name, E)].
 
 t_atom(E) ->
-    [get_attrval(value, E)].
+    [io_lib:write(list_to_atom(get_attrval(value, E)))].
 
 t_integer(E) ->
     [get_attrval(value, E)].
@@ -578,20 +578,20 @@ ot_var(E) ->
     {var,0,list_to_atom(get_attrval(name, E))}.
 
 ot_atom(E) ->
-    {ok, [{atom,A,Name}], _} = erl_scan:string(get_attrval(value, E), 0),
+    {ok, [{atom,A,Name}], _} = erl_scan:string(lists:flatten(t_atom(E)), 0),
     {atom,erl_anno:line(A),Name}.
 
 ot_integer(E) ->
     {integer,0,list_to_integer(get_attrval(value, E))}.
 
 ot_range(E) ->
-    [I1, I2] = string:tokens(get_attrval(value, E), "."),
+    [I1, I2] = string:lexemes(get_attrval(value, E), "."),
     {type,0,range,[{integer,0,list_to_integer(I1)},
                    {integer,0,list_to_integer(I2)}]}.
 
 ot_binary(E) ->
     {Base, Unit} =
-        case string:tokens(get_attrval(value, E), ",:*><") of
+        case string:lexemes(get_attrval(value, E), ",:*><") of
             [] ->
                 {0, 0};
             ["_",B] ->
diff --git a/lib/erl_docgen/src/erl_docgen.app.src b/lib/erl_docgen/src/erl_docgen.app.src
index d63d880d89..171c697585 100644
--- a/lib/erl_docgen/src/erl_docgen.app.src
+++ b/lib/erl_docgen/src/erl_docgen.app.src
@@ -9,6 +9,6 @@
   {registered,[]},
   {applications, [kernel,stdlib]},
   {env, []},
-  {runtime_dependencies, ["xmerl-1.3.7","stdlib-2.5","edoc-0.7.13","erts-6.0"]}
+  {runtime_dependencies, ["xmerl-1.3.7","stdlib-3.4","edoc-0.7.13","erts-9.0"]}
  ]
 }.
diff --git a/lib/erl_docgen/vsn.mk b/lib/erl_docgen/vsn.mk
index 8fad061b26..17a7c483f4 100644
--- a/lib/erl_docgen/vsn.mk
+++ b/lib/erl_docgen/vsn.mk
@@ -1 +1 @@
-ERL_DOCGEN_VSN = 0.7
+ERL_DOCGEN_VSN = 0.7.1
diff --git a/lib/erl_interface/doc/src/Makefile b/lib/erl_interface/doc/src/Makefile
index 204a6051b2..a96ef62786 100644
--- a/lib/erl_interface/doc/src/Makefile
+++ b/lib/erl_interface/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 1998-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 1998-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 include $(ERL_TOP)/make/target.mk
@@ -36,7 +36,7 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN)
 # Target Specs
 # ----------------------------------------------------
 
-XML_REF1_FILES = erl_call.xml 
+XML_REF1_FILES = erl_call.xml
 XML_REF3_FILES = erl_connect.xml \
 	erl_error.xml \
 	erl_eterm.xml \
@@ -46,15 +46,13 @@ XML_REF3_FILES = erl_connect.xml \
 	erl_global.xml \
 	ei.xml \
 	ei_connect.xml \
-	registry.xml 
+	registry.xml
 
 BOOK_FILES = book.xml
-XML_APPLICATION_FILES = ref_man.xml 
+XML_APPLICATION_FILES = ref_man.xml
 #ref_man_ei.xml ref_man_erl_interface.xml
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml \
-	part_notes_history.xml
+	part.xml
 XML_CHAPTER_FILES = ei_users_guide.xml notes.xml notes_history.xml
 
 XML_FILES = $(XML_REF1_FILES) $(XML_REF3_FILES) $(BOOK_FILES) \
@@ -66,7 +64,7 @@ HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
 
 INFO_FILE = ../../info
 
-GIF_FILES = 
+GIF_FILES =
 
 MAN1_FILES = $(XML_REF1_FILES:%.xml=$(MAN1DIR)/%.1)
 MAN3_FILES = $(XML_REF3_FILES:%.xml=$(MAN3DIR)/%.3)
@@ -76,9 +74,9 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -98,7 +96,7 @@ man: $(MAN1_FILES) $(MAN3_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 clean clean_docs clean_tex:
 	rm -rf $(HTMLDIR)/*
@@ -110,7 +108,7 @@ clean clean_docs clean_tex:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -127,4 +125,3 @@ release_docs_spec: docs
 
 
 release_spec:
-
diff --git a/lib/erl_interface/doc/src/note.gif b/lib/erl_interface/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/erl_interface/doc/src/note.gif
+++ /dev/null
diff --git a/lib/erl_interface/doc/src/part_notes.xml b/lib/erl_interface/doc/src/part_notes.xml
deleted file mode 100644
index facdf821ee..0000000000
--- a/lib/erl_interface/doc/src/part_notes.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Erl_Interface Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p><em>Erl_Interface</em> is a C interface library for communication
-      with Erlang.</p>
-    <p>For information about older versions, see
-      <url href="part_notes_history_frame.html">Release Notes History</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/erl_interface/doc/src/part_notes_history.xml b/lib/erl_interface/doc/src/part_notes_history.xml
deleted file mode 100644
index 401fea4dd4..0000000000
--- a/lib/erl_interface/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2006</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Erl_Interface Release Notes History</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p><em>Erl_Interface</em> is a C interface library for communication
-      with Erlang.</p>
-  </description>
-  <xi:include href="notes_history.xml"/>
-</part>
-
diff --git a/lib/erl_interface/doc/src/warning.gif b/lib/erl_interface/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/erl_interface/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/et/doc/src/notes.xml b/lib/et/doc/src/notes.xml
index 5300d2e4ef..f0995b7c19 100644
--- a/lib/et/doc/src/notes.xml
+++ b/lib/et/doc/src/notes.xml
@@ -37,6 +37,21 @@
   one section in this document. The title of each section is the
   version number of <c>Event Tracer (ET)</c>.</p>
 
+<section><title>ET 1.6.1</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    Tools are updated to show Unicode atoms correctly.</p>
+          <p>
+	    Own Id: OTP-14464</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>ET 1.6</title>
 
     <section><title>Improvements and New Features</title>
diff --git a/lib/et/src/et.app.src b/lib/et/src/et.app.src
index 7a5928d6ab..f4e32f734d 100644
--- a/lib/et/src/et.app.src
+++ b/lib/et/src/et.app.src
@@ -33,6 +33,6 @@
   {registered, [et_collector]},
   {applications, [stdlib, kernel]},
   {env, []},
-  {runtime_dependencies, ["wx-1.2","stdlib-2.0","runtime_tools-1.10",
-			  "kernel-3.0","erts-8.0"]}
+  {runtime_dependencies, ["wx-1.2","stdlib-3.4","runtime_tools-1.10",
+			  "kernel-5.3","erts-9.0"]}
  ]}.
diff --git a/lib/et/src/et_collector.erl b/lib/et/src/et_collector.erl
index aba90b0be1..ffe244324c 100644
--- a/lib/et/src/et_collector.erl
+++ b/lib/et/src/et_collector.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -750,7 +750,7 @@ next_iterate(TH, Prev = first, Limit, Fun, Acc) ->
         '$end_of_table' ->
             Acc;
         {'EXIT', _} = Error ->
-            io:format("~p(~p): First ~p~n", [?MODULE, ?LINE, Error]),
+            io:format("~p(~p): First ~tp~n", [?MODULE, ?LINE, Error]),
             iterate(TH#table_handle.collector_pid, Prev, Limit, Fun, Acc);
         First ->
             lookup_and_apply(TH, Prev, First, Limit, -1, Fun, Acc)
@@ -761,7 +761,7 @@ next_iterate(TH, Prev = last, Limit, Fun, Acc) ->
         '$end_of_table' ->
             Acc;
         {'EXIT', _} = Error ->
-            io:format("~p(~p): Last ~p~n", [?MODULE, ?LINE, Error]),
+            io:format("~p(~p): Last ~tp~n", [?MODULE, ?LINE, Error]),
             iterate(TH#table_handle.collector_pid, Prev, Limit, Fun, Acc);
         Last ->
             lookup_and_apply(TH, Prev, Last, Limit, -1, Fun, Acc)
@@ -773,7 +773,7 @@ next_iterate(TH, Prev, Limit, Fun, Acc) ->
         '$end_of_table' ->
             Acc;
         {'EXIT', _} = Error ->
-            io:format("~p(~p): Next ~p -> ~p~n", [?MODULE, ?LINE, Key, Error]),
+            io:format("~p(~p): Next ~tp -> ~tp~n", [?MODULE, ?LINE, Key, Error]),
             iterate(TH#table_handle.collector_pid, Prev, Limit, Fun, Acc);
         Next ->
             lookup_and_apply(TH, Prev, Next, Limit, -1, Fun, Acc)
@@ -785,7 +785,7 @@ prev_iterate(TH, Prev = first, Limit, Fun, Acc) ->
         '$end_of_table' ->
             Acc;
         {'EXIT', _} = Error ->
-            io:format("~p(~p): First ~p~n", [?MODULE, ?LINE, Error]),
+            io:format("~p(~p): First ~tp~n", [?MODULE, ?LINE, Error]),
             iterate(TH#table_handle.collector_pid, Prev, Limit, Fun, Acc);
         First ->
             lookup_and_apply(TH, Prev, First, Limit, 1, Fun, Acc)
@@ -796,7 +796,7 @@ prev_iterate(TH, Prev = last, Limit, Fun, Acc) ->
         '$end_of_table' ->
             Acc;
         {'EXIT', _} = Error ->
-            io:format("~p(~p): Last ~p~n", [?MODULE, ?LINE, Error]),
+            io:format("~p(~p): Last ~tp~n", [?MODULE, ?LINE, Error]),
             iterate(TH#table_handle.collector_pid, Prev, Limit, Fun, Acc);
         Last ->
             lookup_and_apply(TH, Prev, Last, Limit, 1, Fun, Acc)
@@ -808,7 +808,7 @@ prev_iterate(TH, Prev, Limit, Fun, Acc) ->
         '$end_of_table' ->
             Acc;
         {'EXIT', _} = Error ->
-            io:format("~p(~p): Prev ~p -> ~p~n", [?MODULE, ?LINE, Key, Error]),
+            io:format("~p(~p): Prev ~tp -> ~tp~n", [?MODULE, ?LINE, Key, Error]),
             iterate(TH#table_handle.collector_pid, Prev, Limit, Fun, Acc);
         Next ->
             lookup_and_apply(TH, Prev, Next, Limit, 1, Fun, Acc)
@@ -1049,7 +1049,7 @@ handle_call(stop, _From, S) ->
     end,
     {stop, shutdown, ok, S};
 handle_call(Request, From, S) ->
-    ok = error_logger:format("~p(~p): handle_call(~p, ~p, ~p)~n",
+    ok = error_logger:format("~p(~p): handle_call(~tp, ~tp, ~tp)~n",
                              [?MODULE, self(), Request, From, S]),
     reply({error, {bad_request, Request}}, S).
 
@@ -1061,7 +1061,7 @@ handle_call(Request, From, S) ->
 %%----------------------------------------------------------------------
 
 handle_cast(Msg, S) ->
-    ok = error_logger:format("~p(~p): handle_cast(~p, ~p)~n",
+    ok = error_logger:format("~p(~p): handle_cast(~tp, ~tp)~n",
                              [?MODULE, self(), Msg, S]),
     noreply(S).
 
@@ -1083,18 +1083,18 @@ handle_info({nodeup, Node}, S) ->
             S2 = listen_on_trace_port(Node, Port, S),
 	    noreply(S2);
         {error, Reason} when Reason =:= already_started->
-            ok = error_logger:format("~p(~p): producer ignored(~p:~p):~n    ~p~n",
+            ok = error_logger:format("~p(~p): producer ignored(~p:~p):~n    ~tp~n",
                                      [?MODULE, self(), Node, Port, Reason]),
             S2 = S#state{trace_port = Port + 1},
             noreply(S2);
         {badrpc, Reason} ->
-            ok = error_logger:format("~p(~p): producer ignored(~p:~p):~n    ~p~n",
+            ok = error_logger:format("~p(~p): producer ignored(~p:~p):~n    ~tp~n",
                                      [?MODULE, self(), Node, Port, Reason]),
             S2 = S#state{trace_port = Port + 1},
             noreply(S2);
         {error, Reason} ->
             self() ! {nodeup, Node},
-            ok = error_logger:format("~p(~p): producer retry(~p:~p):~n     ~p~n",
+            ok = error_logger:format("~p(~p): producer retry(~p:~p):~n     ~tp~n",
                                      [?MODULE, self(), Node, Port, Reason]),
             S2 = S#state{trace_port = Port + 1},
             noreply(S2)
@@ -1125,17 +1125,17 @@ handle_info(Info = {'EXIT', Pid, Reason}, S) ->
 	    opt_unlink(S#state.parent_pid),
 	    {stop, Reason, S};
         false ->
-            ok = error_logger:format("~p(~p): handle_info(~p, ~p)~n",
+            ok = error_logger:format("~p(~p): handle_info(~tp, ~tp)~n",
                                      [?MODULE, self(), Info, S]),
             noreply(S)
     end;
 handle_info(Info, S) ->
-    ok = error_logger:format("~p(~p): handle_info(~p, ~p)~n",
+    ok = error_logger:format("~p(~p): handle_info(~tp, ~tp)~n",
                              [?MODULE, self(), Info, S]),
     noreply(S).
 
 listen_on_trace_port(Node, Port, S) ->
-    [_Name, Host] = string:tokens(atom_to_list(Node), [$@]),
+    [_Name, Host] = string:lexemes(atom_to_list(Node), [$@]),
     case catch start_trace_client(self(), ip, {Host, Port}) of
         {trace_client_pid, RemotePid} ->
             rpc:call(Node, et_selector, change_pattern, [S#state.trace_pattern]),
@@ -1143,12 +1143,12 @@ listen_on_trace_port(Node, Port, S) ->
             S#state{trace_nodes = [Node | S#state.trace_nodes],
 		    trace_port  = Port + 1};
         {'EXIT', Reason} when Reason =:= already_started->
-            ok = error_logger:format("~p(~p): consumer ignored(~p:~p): ~p~n",
+            ok = error_logger:format("~p(~p): consumer ignored(~p:~p): ~tp~n",
                                      [?MODULE, self(), Node, Port, Reason]),
             S#state{trace_port = Port + 1};
         {'EXIT', Reason} ->
             self() ! {nodeup, Node},
-            ok = error_logger:format("~p(~p): consumer retry(~p:~p):~n     ~p~n",
+            ok = error_logger:format("~p(~p): consumer retry(~p:~p):~n     ~tp~n",
                                      [?MODULE, self(), Node, Port, Reason]),
             S#state{trace_port = Port + 1}
     end.
@@ -1247,7 +1247,7 @@ file_open(F) ->
         {ok, _} ->
             {ok, Fd};
         {repaired, _, _, BadBytes} ->
-            ok = error_logger:format("~p: Skipped ~p bad bytes in file: ~p~n",
+            ok = error_logger:format("~p: Skipped ~p bad bytes in file: ~tp~n",
                                      [?MODULE, BadBytes, F#file.name]),
             {ok, Fd};
         {error,Reason} ->
diff --git a/lib/et/src/et_selector.erl b/lib/et/src/et_selector.erl
index a0297c21d1..35db07cd99 100644
--- a/lib/et/src/et_selector.erl
+++ b/lib/et/src/et_selector.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2001-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -208,7 +208,7 @@ parse_event(Mod, Trace) ->
 					  {to, undefined},
 					  {drop, NumberOfDroppedItems}]}};
         _ ->
-            error_logger:format("~p(~p): Ignoring unknown trace type -> ~p~n~n",
+            error_logger:format("~p(~p): Ignoring unknown trace type -> ~tp~n~n",
                                 [?MODULE, ?LINE, Trace]),
             false
     end.
@@ -258,7 +258,7 @@ parse_seq_event(Trace, ParsedTS, ReportedTS, Label, Info) ->
 					  {serial, Serial},
 					  {user_info, UserInfo}]}};
         _ ->
-            error_logger:format("~p(~p): Ignoring unknown trace type -> ~p~n~n",
+            error_logger:format("~p(~p): Ignoring unknown trace type -> ~tp~n~n",
                                 [?MODULE, ?LINE, Trace]),
             false
     end.
@@ -590,7 +590,7 @@ parse_event(Mod, Trace, ParsedTS, ReportedTS, From, Label, Contents) ->
                                           {to, From},
                                           {gc_items, GcKeyValueList}]}};
         _ ->
-            error_logger:format("~p(~p): Ignoring unknown trace type -> ~p~n~n",
+            error_logger:format("~p(~p): Ignoring unknown trace type -> ~tp~n~n",
                                 [?MODULE, ?LINE, Trace]),
             false
     end.
diff --git a/lib/et/src/et_wx_contents_viewer.erl b/lib/et/src/et_wx_contents_viewer.erl
index 247dd4c7ba..bca517317e 100644
--- a/lib/et/src/et_wx_contents_viewer.erl
+++ b/lib/et/src/et_wx_contents_viewer.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2017. All Rights Reserved.
 %% 
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -213,7 +213,7 @@ init([S]) when is_record(S, state) ->
 %%----------------------------------------------------------------------
 
 handle_call(Request, From, S) ->
-    ok = error_logger:format("~p(~p): handle_call(~p, ~p, ~p)~n",
+    ok = error_logger:format("~p(~p): handle_call(~tp, ~tp, ~tp)~n",
                              [?MODULE, self(), Request, From, S]),
     Reply = {error, {bad_request, Request}},
     {reply, Reply, S}.
@@ -226,7 +226,7 @@ handle_call(Request, From, S) ->
 %%----------------------------------------------------------------------
 
 handle_cast(Msg, S) ->
-    ok = error_logger:format("~p(~p): handle_cast(~p, ~p)~n",
+    ok = error_logger:format("~p(~p): handle_cast(~tp, ~tp)~n",
                              [?MODULE, self(), Msg, S]),
     {noreply, S}.
 
@@ -272,10 +272,11 @@ handle_event(#wx{id = Id,
                 end,
             FileName = lists:flatten(["et_contents_viewer_", now_to_string(TimeStamp), ".txt"]),
 	    Style = ?wxFD_SAVE bor ?wxFD_OVERWRITE_PROMPT,
-	    Msg = "Select a file to the events to",
+	    Msg = "Select a file to save events to",
 	    case select_file(S#state.frame, Msg, filename:absname(FileName), Style) of
 		{ok, FileName2} ->
-		    Bin = list_to_binary(event_to_string(Event, S#state.event_order)),
+                    EventString = event_to_string(Event, S#state.event_order),
+		    Bin = unicode:characters_to_binary(EventString),
 		    ok = file:write_file(FileName2, Bin);
 		cancel ->
 		    ok
@@ -381,7 +382,7 @@ handle_event(#wx{event = #wxSize{size = {W, H}}}, S) ->
     S2 = S#state{width = W, height = H},
     {noreply, S2};
 handle_event(Wx = #wx{}, S) ->
-    io:format("~p got an unexpected event: ~p\n", [self(), Wx]),
+    io:format("~p got an unexpected event: ~tp\n", [self(), Wx]),
     {noreply, S}.
 
 %%----------------------------------------------------------------------
@@ -405,7 +406,7 @@ handle_info({'EXIT', Pid, Reason}, S) ->
             {noreply, S}
     end;
 handle_info(Info, S) ->
-    ok = error_logger:format("~p(~p): handle_info(~p, ~p)~n",
+    ok = error_logger:format("~p(~p): handle_info(~tp, ~tp)~n",
                              [?MODULE, self(), Info, S]),
     {noreply, S}.
 
@@ -606,8 +607,8 @@ do_config_editor(Editor, Event, _Colour, TsKey) ->
 %%%----------------------------------------------------------------------
 
 term_to_string(Term) ->
-    case catch io_lib:format("~s", [Term]) of
-        {'EXIT', _} -> io_lib:format("~p", [Term]);
+    case catch io_lib:format("~ts", [Term]) of
+        {'EXIT', _} -> io_lib:format("~tp", [Term]);
         GoodString  -> GoodString
     end.
 
@@ -659,7 +660,7 @@ pad_string(Int, MinLen, Char, Dir) when is_integer(Int) ->
 pad_string(Atom, MinLen, Char, Dir) when is_atom(Atom) ->
     pad_string(atom_to_list(Atom), MinLen, Char, Dir);
 pad_string(String, MinLen, Char, Dir) when is_integer(MinLen), MinLen >= 0 ->
-    Len = length(String),
+    Len = string:length(String),
     case {Len >= MinLen, Dir} of
         {true, _} ->
             String;
diff --git a/lib/et/src/et_wx_viewer.erl b/lib/et/src/et_wx_viewer.erl
index 9613299e6b..4dd44e7a4c 100644
--- a/lib/et/src/et_wx_viewer.erl
+++ b/lib/et/src/et_wx_viewer.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2017. All Rights Reserved.
 %% 
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -352,7 +352,7 @@ handle_call({open_event, N}, _From, S) when is_integer(N), N > 0->
     Reply = do_open_event(S, N),
     reply(Reply, S);
 handle_call(Request, From, S) ->
-    ok = error_logger:format("~p(~p): handle_call(~p, ~p, ~p)~n",
+    ok = error_logger:format("~p(~p): handle_call(~tp, ~tp, ~tp)~n",
 			     [?MODULE, self(), Request, From, S]),
     Reply = {error, {bad_request, Request}},
     reply(Reply, S).
@@ -365,7 +365,7 @@ handle_call(Request, From, S) ->
 %%----------------------------------------------------------------------
 
 handle_cast(Msg, S) ->
-    ok = error_logger:format("~p(~p): handle_cast(~p, ~p)~n",
+    ok = error_logger:format("~p(~p): handle_cast(~tp, ~tp)~n",
 			     [?MODULE, self(), Msg, S]),
     noreply(S).
 
@@ -803,7 +803,7 @@ handle_info(timeout, S) ->
 handle_info({'EXIT', Pid, Reason}, S) ->
     if
 	Pid =:= S#state.collector_pid ->
-	    io:format("collector died: ~p\n\n", [Reason]),
+	    io:format("collector died: ~tp\n\n", [Reason]),
 	    wxFrame:destroy(S#state.frame),
 	    {stop, Reason, S};
 	Pid =:= S#state.parent_pid ->
@@ -853,10 +853,10 @@ handle_info(#wx{event = #wxPaint{}}, S) ->
     S2 = refresh_main_window(S),
     noreply(S2);
 handle_info(#wx{event = #wxMouse{type = T, x=X,y=Y}}, S) ->
-    io:format("~p ~p\n", [T, {X,Y}]),
+    io:format("~tp ~tp\n", [T, {X,Y}]),
     noreply(S);
 handle_info(Info, S) ->
-    ok = error_logger:format("~p(~p): handle_info(~p, ~p)~n",
+    ok = error_logger:format("~p(~p): handle_info(~tp, ~tp)~n",
 			     [?MODULE, self(), Info, S]),
     noreply(S).
 
@@ -1162,7 +1162,7 @@ open_viewer(Scale, FilterName, Actors, S) ->
 	    %% unlink(ViewerPid),
 	    ok;
 	{error, Reason} ->
-	    ok = error_logger:format("~p: Failed to start a new window: ~p~n",
+	    ok = error_logger:format("~p: Failed to start a new window: ~tp~n",
 				     [?MODULE, Reason])
     end.
 
@@ -1393,7 +1393,7 @@ create_filter_menu(S=#state{filter_menu = {Menu,Data}}, ActiveFilterName, Filter
 			    wxMenu:delete(Menu,I)
 			catch
 			    _:Reason ->
-				io:format("Could not delete item: ~p, because ~p.\n", [I, Reason])
+				io:format("Could not delete item: ~tp, because ~tp.\n", [I, Reason])
 			end
 		end, 
 		Data),
@@ -1872,7 +1872,7 @@ create_contents_window(Event, {S, Res}) ->
 	{ok, Pid} ->
 	    {S, [{ok, Pid} | Res]};
 	{error, Reason} ->
-	    ok = error_logger:format("~p(~p): create_contents_window(~p) ->~n     ~p~n",
+	    ok = error_logger:format("~p(~p): create_contents_window(~tp) ->~n     ~tp~n",
 				     [?MODULE, self(), Options, Reason]),
 	    {S, [{error, Reason} | Res]};
 	Stuff ->
@@ -2069,15 +2069,15 @@ create_actor(Name) ->
     #actor{name = Name, string = String, include = false, exclude = false}.
 
 name_to_string(Name) ->
-    case catch io_lib:format("~s", [Name]) of
-        {'EXIT', _} -> lists:flatten(io_lib:format("~w", [Name]));
+    case catch io_lib:format("~ts", [Name]) of
+        {'EXIT', _} -> lists:flatten(io_lib:format("~tw", [Name]));
         GoodString  -> lists:flatten(GoodString)
     end.
 
 pad_string(Atom, MinLen) when is_atom(Atom) ->
     pad_string(atom_to_list(Atom), MinLen);
 pad_string(String, MinLen) when is_integer(MinLen), MinLen >= 0 ->
-    Len = length(String),
+    Len = string:length(String),
     case Len >= MinLen of
         true ->
             String;
diff --git a/lib/et/test/et_test_lib.erl b/lib/et/test/et_test_lib.erl
index df2c308b28..fc469f646a 100644
--- a/lib/et/test/et_test_lib.erl
+++ b/lib/et/test/et_test_lib.erl
@@ -18,7 +18,7 @@
 %% %CopyrightEnd%
 
 -module(et_test_lib).
--compile(export_all).
+-compile([export_all, nowarn_export_all]).
 
 -include("et_test_lib.hrl").
 
diff --git a/lib/et/test/ett.erl b/lib/et/test/ett.erl
index b1b769b7ac..2b276eab1a 100644
--- a/lib/et/test/ett.erl
+++ b/lib/et/test/ett.erl
@@ -18,7 +18,7 @@
 %% %CopyrightEnd%
 
 -module(ett).
--compile(export_all).
+-compile([export_all, nowarn_export_all]).
 
 %%  Modules or suites can be shortcuts, for example wx expands to et_wx_SUITE.
 %%  
diff --git a/lib/et/vsn.mk b/lib/et/vsn.mk
index a37fec083b..aab63a402e 100644
--- a/lib/et/vsn.mk
+++ b/lib/et/vsn.mk
@@ -1 +1 @@
-ET_VSN  = 1.6
+ET_VSN  = 1.6.1
diff --git a/lib/eunit/doc/src/Makefile b/lib/eunit/doc/src/Makefile
index f1491eb873..610e575af6 100644
--- a/lib/eunit/doc/src/Makefile
+++ b/lib/eunit/doc/src/Makefile
@@ -1,5 +1,5 @@
 #<copyright>
-# <year>2004-2007</year>
+# <year>2004-2017</year>
 # <holder>Ericsson AB, All Rights Reserved</holder>
 #</copyright>
 #<legalnotice>
@@ -51,11 +51,10 @@ EUNIT_MODULES = \
 
 XML_APPLICATION_FILES = ref_man.xml
 
-XML_REF3_FILES =  $(EUNIT_MODULES:=.xml) 
+XML_REF3_FILES =  $(EUNIT_MODULES:=.xml)
 
 XML_PART_FILES =  \
-	part.xml \
-	part_notes.xml
+	part.xml
 
 XML_CHAPTER_FILES =  \
 	chapter.xml
@@ -63,7 +62,7 @@ XML_CHAPTER_FILES =  \
 XML_NOTES_FILES =  \
 	notes.xml
 
-HTML_EXAMPLE_FILES =  
+HTML_EXAMPLE_FILES =
 
 HTML_STYLESHEET_FILES = \
 	../stylesheet.css
@@ -99,10 +98,10 @@ TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -123,8 +122,8 @@ man: $(MAN3_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-$(XML_REF3_FILES): 
-	escript $(DOCGEN)/priv/bin/xml_from_edoc.escript -def vsn $(EUNIT_VSN) -i $(EUNIT_INC_DIR) $(EUNIT_DIR)/$(@:%.xml=%.erl) 
+$(XML_REF3_FILES):
+	escript $(DOCGEN)/priv/bin/xml_from_edoc.escript -def vsn $(EUNIT_VSN) -i $(EUNIT_INC_DIR) $(EUNIT_DIR)/$(@:%.xml=%.erl)
 
 $(XML_CHAPTER_FILES):
 	escript $(DOCGEN)/priv/bin/xml_from_edoc.escript -def vsn $(EUNIT_VSN) -chapter ../overview.edoc
@@ -142,19 +141,19 @@ info:
 
 xml: $(XML_REF3_FILES) $(XML_CHAPTER_FILES)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
 	rm -f $(MAN3DIR)/*
 	rm -f $(XML_REF3_FILES) $(XML_CHAPTER_FILES) *.html
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -169,6 +168,3 @@ release_docs_spec: docs
 
 
 release_spec:
-
-
-
diff --git a/lib/eunit/doc/src/fascicules.xml b/lib/eunit/doc/src/fascicules.xml
deleted file mode 100644
index 217228785c..0000000000
--- a/lib/eunit/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-   <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/eunit/doc/src/notes.xml b/lib/eunit/doc/src/notes.xml
index 2a4ca6d12c..7133befe37 100644
--- a/lib/eunit/doc/src/notes.xml
+++ b/lib/eunit/doc/src/notes.xml
@@ -33,6 +33,21 @@
   </header>
   <p>This document describes the changes made to the EUnit application.</p>
 
+<section><title>Eunit 2.3.4</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    Tools are updated to show Unicode atoms correctly.</p>
+          <p>
+	    Own Id: OTP-14464</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Eunit 2.3.3</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/eunit/doc/src/part_notes.xml b/lib/eunit/doc/src/part_notes.xml
deleted file mode 100644
index 7db65083e0..0000000000
--- a/lib/eunit/doc/src/part_notes.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2008</year>
-      <year>2016</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
- 
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>EUnit Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date>2008-10-29</date>
-    <rev></rev>
-
-  </header>
-  <description>
-    <p>The <em>EUnit</em> application 
-      contains modules with support for unit testing</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/eunit/src/eunit.app.src b/lib/eunit/src/eunit.app.src
index b4ff6c9242..cc75a0f790 100644
--- a/lib/eunit/src/eunit.app.src
+++ b/lib/eunit/src/eunit.app.src
@@ -19,4 +19,4 @@
   {registered,[]},
   {applications, [kernel,stdlib]},
   {env, []},
-  {runtime_dependencies, ["stdlib-2.5","kernel-3.0","erts-6.0"]}]}.
+  {runtime_dependencies, ["stdlib-3.4","kernel-5.3","erts-9.0"]}]}.
diff --git a/lib/eunit/src/eunit_lib.erl b/lib/eunit/src/eunit_lib.erl
index aa2cffc66d..d1bd160ea1 100644
--- a/lib/eunit/src/eunit_lib.erl
+++ b/lib/eunit/src/eunit_lib.erl
@@ -107,7 +107,7 @@ format_stacktrace(Trace) ->
     format_stacktrace(Trace, "in function", "in call from").
 
 format_stacktrace([{M,F,A,L}|Fs], Pre, Pre1) when is_integer(A) ->
-    [io_lib:fwrite("~ts ~w:~w/~w~ts\n",
+    [io_lib:fwrite("~ts ~w:~tw/~w~ts\n",
                    [Pre, M, F, A, format_stacktrace_location(L)])
      | format_stacktrace(Fs, Pre1, Pre1)];
 format_stacktrace([{M,F,As,L}|Fs], Pre, Pre1) when is_list(As) ->
@@ -121,9 +121,9 @@ format_stacktrace([{M,F,As,L}|Fs], Pre, Pre1) when is_list(As) ->
 		io_lib:fwrite("~ts ~ts ~ts",
 			      [format_arg(A1),F,format_arg(A2)]);
 	    false ->
-		io_lib:fwrite("~w(~ts)", [F,format_arglist(As)])
+		io_lib:fwrite("~tw(~ts)", [F,format_arglist(As)])
 	end,
-    [io_lib:fwrite("~ts ~w:~w/~w~ts\n  called as ~ts\n",
+    [io_lib:fwrite("~ts ~w:~tw/~w~ts\n  called as ~ts\n",
 		   [Pre,M,F,A,format_stacktrace_location(L),C])
      | format_stacktrace(Fs,Pre1,Pre1)];
 format_stacktrace([{M,F,As}|Fs], Pre, Pre1) ->
@@ -162,15 +162,15 @@ is_op(_M, _F, _A) ->
 format_error({bad_test, Term}) ->
     error_msg("bad test descriptor", "~tP", [Term, 15]);
 format_error({bad_generator, {{M,F,A}, Term}}) ->
-    error_msg(io_lib:format("result from generator ~w:~w/~w is not a test",
+    error_msg(io_lib:format("result from generator ~w:~tw/~w is not a test",
                             [M,F,A]),
               "~tP", [Term, 15]);
 format_error({generator_failed, {{M,F,A}, Exception}}) ->
-    error_msg(io_lib:format("test generator ~w:~w/~w failed",[M,F,A]),
+    error_msg(io_lib:format("test generator ~w:~tw/~w failed",[M,F,A]),
               "~ts", [format_exception(Exception)]);
 format_error({no_such_function, {M,F,A}})
   when is_atom(M), is_atom(F), is_integer(A) ->
-    error_msg(io_lib:format("no such function: ~w:~w/~w", [M,F,A]),
+    error_msg(io_lib:format("no such function: ~w:~tw/~w", [M,F,A]),
 	      "", []);
 format_error({module_not_found, M}) ->
     error_msg("test module not found", "~tp", [M]);
@@ -185,7 +185,7 @@ format_error({cleanup_failed, Exception}) ->
     error_msg("context cleanup failed", "~ts",
 	      [format_exception(Exception)]);
 format_error({{bad_instantiator, {{M,F,A}, Term}}, _DummyException}) ->
-    error_msg(io_lib:format("result from instantiator ~w:~w/~w is not a test",
+    error_msg(io_lib:format("result from instantiator ~w:~tw/~w is not a test",
                             [M,F,A]),
               "~tP", [Term, 15]);
 format_error({instantiation_failed, Exception}) ->
@@ -384,16 +384,14 @@ fun_parent(F) ->
 	    {arity, A} = erlang:fun_info(F, arity),
 	    {M, N, A};
 	{type, local} ->
-	    [$-|S] = atom_to_list(N),
-	    C1 = string:chr(S, $/),
-	    C2 = string:chr(S, $-),
-	    {M, list_to_atom(string:sub_string(S, 1, C1 - 1)),
-	     list_to_integer(string:sub_string(S, C1 + 1, C2 - 1))}
+            [$-|S] = atom_to_list(N),
+            [S2, T] = string:split(S, "/", trailing),
+            {M, list_to_atom(S2), element(1, string:to_integer(T))}
     end.
 
 -ifdef(TEST).
 fun_parent_test() ->
-    {?MODULE,fun_parent_test,0} = fun_parent(fun () -> ok end).
+    {?MODULE,fun_parent_test,0} = fun_parent(fun (A) -> {ok,A} end).
 -endif.
 
 %% ---------------------------------------------------------------------
diff --git a/lib/eunit/src/eunit_tty.erl b/lib/eunit/src/eunit_tty.erl
index 77a7cf1fd5..2c9a598628 100644
--- a/lib/eunit/src/eunit_tty.erl
+++ b/lib/eunit/src/eunit_tty.erl
@@ -235,7 +235,7 @@ print_test_error({skipped, Reason}, _) ->
 format_skipped({module_not_found, M}) ->
     io_lib:fwrite("missing module: ~w", [M]);
 format_skipped({no_such_function, {M,F,A}}) ->
-    io_lib:fwrite("no such function: ~w:~w/~w", [M,F,A]).
+    io_lib:fwrite("no such function: ~w:~tw/~w", [M,F,A]).
 
 print_test_cancel(Reason) ->
     fwrite(format_cancel(Reason)).
diff --git a/lib/eunit/vsn.mk b/lib/eunit/vsn.mk
index 107ad5c101..25bb0dec17 100644
--- a/lib/eunit/vsn.mk
+++ b/lib/eunit/vsn.mk
@@ -1 +1 @@
-EUNIT_VSN = 2.3.3
+EUNIT_VSN = 2.3.4
diff --git a/lib/hipe/cerl/cerl_cconv.erl b/lib/hipe/cerl/cerl_cconv.erl
index 122e6ef039..2cd0e261d5 100644
--- a/lib/hipe/cerl/cerl_cconv.erl
+++ b/lib/hipe/cerl/cerl_cconv.erl
@@ -258,7 +258,7 @@ bind_module_defs([], Env, S) ->
 check_function_name(Name, S) ->
     case s__is_function_name(Name, S) of
 	true ->
-	    error_msg("multiple definitions of function `~w'.", [Name]),
+	    error_msg("multiple definitions of function `~tw'.", [Name]),
 	    exit(error);
 	false ->
 	    ok
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl
index 0883a69918..d8d707c05e 100644
--- a/lib/hipe/cerl/erl_types.erl
+++ b/lib/hipe/cerl/erl_types.erl
@@ -74,6 +74,7 @@
 	 t_form_to_string/1,
          t_from_form/6,
          t_from_form_without_remote/3,
+         t_from_form_check_remote/4,
          t_check_record_fields/6,
 	 t_from_range/2,
 	 t_from_range_unsafe/2,
@@ -1629,8 +1630,8 @@ lift_list_to_pos_empty(?list(Content, Termination, _)) ->
 %%  * The keys in Pairs are singleton types.
 %%  * The values of Pairs must not be unit, and may only be none if the
 %%      mandatoriness tag  is 'optional'.
-%%  * Optional must contain no pair {K,V} s.t. K is a subtype of DefaultKey and
-%%    V is equal to DefaultKey.
+%%  * There is no pair {K, 'optional', V} in Pairs s.t.
+%%      K is a subtype of DefaultKey and V is equal to DefaultValue.
 %%  * DefaultKey must be the empty type iff DefaultValue is the empty type.
 %%  * DefaultKey must not be a singleton type.
 %%  * For every key K in Pairs, DefaultKey - K must not be representable; i.e.
@@ -4248,13 +4249,13 @@ t_to_string(?identifier(Set), _RecDict) ->
   case Set of
     ?any -> "identifier()";
     _ ->
-      string:join([flat_format("~w()", [T]) || T <- set_to_list(Set)], " | ")
+      flat_join([flat_format("~w()", [T]) || T <- set_to_list(Set)], " | ")
   end;
 t_to_string(?opaque(Set), RecDict) ->
-  string:join([opaque_type(Mod, Name, Args, S, RecDict) ||
-                #opaque{mod = Mod, name = Name, struct = S, args = Args}
-                  <- set_to_list(Set)],
-	      " | ");
+  flat_join([opaque_type(Mod, Name, Args, S, RecDict) ||
+              #opaque{mod = Mod, name = Name, struct = S, args = Args}
+                <- set_to_list(Set)],
+            " | ");
 t_to_string(?matchstate(Pres, Slots), RecDict) ->
   flat_format("ms(~ts,~ts)", [t_to_string(Pres, RecDict),
                               t_to_string(Slots,RecDict)]);
@@ -4345,9 +4346,9 @@ t_to_string(?map(Pairs0,DefK,DefV), RecDict) ->
 		  end end,
   StrMand = [{Tos(K),Tos(V)}||{K,?mand,V}<-Pairs],
   StrOpt  = [{Tos(K),Tos(V)}||{K,?opt,V}<-Pairs],
-  "#{" ++ string:join([K ++ ":=" ++ V||{K,V}<-StrMand]
-		      ++ [K ++ "=>" ++ V||{K,V}<-StrOpt]
-		      ++ ExtraEl, ", ") ++ "}";
+  "#{" ++ flat_join([K ++ ":=" ++ V||{K,V}<-StrMand]
+                    ++ [K ++ "=>" ++ V||{K,V}<-StrOpt]
+                    ++ ExtraEl, ", ") ++ "}";
 t_to_string(?tuple(?any, ?any, ?any), _RecDict) -> "tuple()";
 t_to_string(?tuple(Elements, _Arity, ?any), RecDict) ->   
   "{" ++ comma_sequence(Elements, RecDict) ++ "}";
@@ -4370,7 +4371,7 @@ t_to_string(?var(Id), _RecDict) when is_integer(Id) ->
 
 record_to_string(Tag, [_|Fields], FieldNames, RecDict) ->
   FieldStrings = record_fields_to_string(Fields, FieldNames, RecDict, []),
-  "#" ++ atom_to_string(Tag) ++ "{" ++ string:join(FieldStrings, ",") ++ "}".
+  "#" ++ atom_to_string(Tag) ++ "{" ++ flat_join(FieldStrings, ",") ++ "}".
 
 record_fields_to_string([F|Fs], [{FName, _Abstr, DefType}|FDefs],
                         RecDict, Acc) ->
@@ -4396,7 +4397,7 @@ record_field_diffs_to_string(?tuple([_|Fs], Arity, Tag), RecDict) ->
   {ok, FieldNames} = lookup_record(TagAtom, Arity-1, RecDict),
   %% io:format("RecCElems = ~p\nRecTypes = ~p\n", [Fs, FieldNames]),
   FieldDiffs = field_diffs(Fs, FieldNames, RecDict, []),
-  string:join(FieldDiffs, " and ").
+  flat_join(FieldDiffs, " and ").
 
 field_diffs([F|Fs], [{FName, _Abstr, DefType}|FDefs], RecDict, Acc) ->
   %% Don't care about opacity for now.
@@ -4416,11 +4417,11 @@ comma_sequence(Types, RecDict) ->
 	    true -> "_";
 	    false -> t_to_string(T, RecDict)
 	  end || T <- Types],
-  string:join(List, ",").
+  flat_join(List, ",").
 
 union_sequence(Types, RecDict) ->
   List = [t_to_string(T, RecDict) || T <- Types], 
-  string:join(List, " | ").
+  flat_join(List, " | ").
 
 -ifdef(DEBUG).
 opaque_type(Mod, Name, _Args, S, RecDict) ->
@@ -4471,7 +4472,7 @@ t_from_form(Form, ExpTypes, Site, RecDict, VarTab, Cache) ->
 
 %% Replace external types with with none().
 -spec t_from_form_without_remote(parse_form(), site(), type_table()) ->
-                                    {erl_type(), cache()}.
+                                    erl_type().
 
 t_from_form_without_remote(Form, Site, TypeTable) ->
   Module = site_module(Site),
@@ -4480,38 +4481,57 @@ t_from_form_without_remote(Form, Site, TypeTable) ->
   VarTab = var_table__new(),
   Cache0 = cache__new(),
   Cache = Cache0#cache{mod_recs = {mrecs, ModRecs}},
-  t_from_form1(Form, ExpTypes, Site, undefined, VarTab, Cache).
-
-%% REC_TYPE_LIMIT is used for limiting the depth of recursive types.
-%% EXPAND_LIMIT is used for limiting the size of types by
-%% limiting the number of elements of lists within one type form.
-%% EXPAND_DEPTH is used in conjunction with EXPAND_LIMIT to make the
-%% types balanced (unions will otherwise collapse to any()) by limiting
-%% the depth the same way as t_limit/2 does.
+  {Type, _} = t_from_form1(Form, ExpTypes, Site, undefined, VarTab, Cache),
+  Type.
 
 -type expand_limit() :: integer().
 
 -type expand_depth() :: integer().
 
--record(from_form, {site   :: site(),
+-record(from_form, {site   :: site() | {'check', mta()},
                     xtypes :: sets:set(mfa()) | 'replace_by_none',
                     mrecs  :: 'undefined' | mod_type_table(),
                     vtab   :: var_table(),
                     tnames :: type_names()}).
 
+-spec t_from_form_check_remote(parse_form(), sets:set(mfa()), mta(),
+                               mod_type_table()) -> 'ok'.
+t_from_form_check_remote(Form, ExpTypes, MTA, RecDict) ->
+  State = #from_form{site   = {check, MTA},
+                     xtypes = ExpTypes,
+                     mrecs  = RecDict,
+                     vtab   = var_table__new(),
+                     tnames = []},
+  D = (1 bsl 25), % unlimited
+  L = (1 bsl 25),
+  Cache0 = cache__new(),
+  _ = t_from_form2(Form, State, D, L, Cache0),
+  ok.
+
+%% REC_TYPE_LIMIT is used for limiting the depth of recursive types.
+%% EXPAND_LIMIT is used for limiting the size of types by
+%% limiting the number of elements of lists within one type form.
+%% EXPAND_DEPTH is used in conjunction with EXPAND_LIMIT to make the
+%% types balanced (unions will otherwise collapse to any()) by limiting
+%% the depth the same way as t_limit/2 does.
+
 -spec t_from_form1(parse_form(), sets:set(mfa()) | 'replace_by_none',
                    site(), 'undefined' | mod_type_table(), var_table(),
                    cache()) -> {erl_type(), cache()}.
 
 t_from_form1(Form, ET, Site, MR, V, C) ->
   TypeNames = initial_typenames(Site),
+  D = ?EXPAND_DEPTH,
+  L = ?EXPAND_LIMIT,
   State = #from_form{site   = Site,
                      xtypes = ET,
                      mrecs  = MR,
                      vtab   = V,
                      tnames = TypeNames},
-  L = ?EXPAND_LIMIT,
-  {T0, L0, C0} = from_form(Form, State, ?EXPAND_DEPTH, L, C),
+  t_from_form2(Form, State, D, L, C).
+
+t_from_form2(Form, State, D, L, C) ->
+  {T0, L0, C0} = from_form(Form, State, D, L, C),
   if
     L0 =< 0 ->
       {T1, _, C1} = from_form(Form, State, 1, L, C0),
@@ -4655,7 +4675,8 @@ from_form({type, _L, map, List}, S, D0, L, C) ->
 	end
     end(List, L, C),
   try
-    {Pairs, DefK, DefV} = map_from_form(Pairs1, [], [], [], ?none, ?none),
+    Pairs2 = singleton_elements(Pairs1),
+    {Pairs, DefK, DefV} = map_from_form(Pairs2, [], [], [], ?none, ?none),
     {t_map(Pairs, DefK, DefV), L5, C5}
   catch none -> {t_none(), L5, C5}
   end;
@@ -4767,14 +4788,18 @@ type_from_form(Name, Args, S, D, L, C) ->
   case can_unfold_more(TypeName, TypeNames) of
     true ->
       {R, C1} = lookup_module_types(Module, MR, C),
-      type_from_form1(Name, Args, ArgsLen, R, TypeName, TypeNames,
+      type_from_form1(Name, Args, ArgsLen, R, TypeName, TypeNames, Site,
                       S, D, L, C1);
     false ->
       {t_any(), L, C}
   end.
 
-type_from_form1(Name, Args, ArgsLen, R, TypeName, TypeNames, S, D, L, C) ->
+type_from_form1(Name, Args, ArgsLen, R, TypeName, TypeNames, Site,
+                S, D, L, C) ->
   case lookup_type(Name, ArgsLen, R) of
+    {_, {_, _}} when element(1, Site) =:= check ->
+      {_ArgTypes, L1, C1} = list_from_form(Args, S, D, L, C),
+      {t_any(), L1, C1};
     {Tag, {{Module, _FileName, Form, ArgNames}, Type}} ->
       NewTypeNames = [TypeName|TypeNames],
       S1 = S#from_form{tnames = NewTypeNames},
@@ -4813,7 +4838,7 @@ type_from_form1(Name, Args, ArgsLen, R, TypeName, TypeNames, S, D, L, C) ->
   end.
 
 remote_from_form(RemMod, Name, Args, S, D, L, C) ->
-  #from_form{xtypes = ET, mrecs = MR, tnames = TypeNames} = S,
+  #from_form{site = Site, xtypes = ET, mrecs = MR, tnames = TypeNames} = S,
   if
     ET =:= replace_by_none ->
       {t_none(), L, C};
@@ -4831,7 +4856,7 @@ remote_from_form(RemMod, Name, Args, S, D, L, C) ->
               case can_unfold_more(RemType, TypeNames) of
                 true ->
                   remote_from_form1(RemMod, Name, Args, ArgsLen, RemDict,
-                                    RemType, TypeNames, S, D, L, C1);
+                                    RemType, TypeNames, Site, S, D, L, C1);
                 false ->
                   {t_any(), L, C1}
               end;
@@ -4843,14 +4868,16 @@ remote_from_form(RemMod, Name, Args, S, D, L, C) ->
   end.
 
 remote_from_form1(RemMod, Name, Args, ArgsLen, RemDict, RemType, TypeNames,
-                  S, D, L, C) ->
+                  Site, S, D, L, C) ->
   case lookup_type(Name, ArgsLen, RemDict) of
+    {_, {_, _}} when element(1, Site) =:= check ->
+      {_ArgTypes, L1, C1} = list_from_form(Args, S, D, L, C),
+      {t_any(), L1, C1};
     {Tag, {{Mod, _FileLine, Form, ArgNames}, Type}} ->
       NewTypeNames = [RemType|TypeNames],
       S1 = S#from_form{tnames = NewTypeNames},
       {ArgTypes, L1, C1} = list_from_form(Args, S1, D, L, C),
       CKey = cache_key(RemMod, Name, ArgTypes, TypeNames, D),
-      %% case error of
       case cache_find(CKey, C) of
         {CachedType, DeltaL} ->
           {CachedType, L - DeltaL, C};
@@ -4914,6 +4941,8 @@ record_from_form({atom, _, Name}, ModFields, S, D0, L0, C) ->
       M = site_module(Site),
       {R, C1} = lookup_module_types(M, MR, C),
       case lookup_record(Name, R) of
+        {ok, _} when element(1, Site) =:= check ->
+          {t_any(), L0, C1};
         {ok, DeclFields} ->
           NewTypeNames = [RecordType|TypeNames],
           Site1 = {record, {M, Name, length(DeclFields)}},
@@ -4998,6 +5027,30 @@ list_from_form([H|Tail], S, D, L, C) ->
   {T1, L2, C2} = list_from_form(Tail, S, D, L1, C1),
   {[H1|T1], L2, C2}.
 
+%% Separates singleton types in keys (see is_singleton_type/1).
+singleton_elements([]) ->
+  [];
+singleton_elements([{K,?mand,V}=Pair|Pairs]) ->
+  case is_singleton_type(K) of
+    true ->
+      [Pair|singleton_elements(Pairs)];
+    false ->
+      singleton_elements([{K,?opt,V}|Pairs])
+  end;
+singleton_elements([{Key0,MNess,Val}|Pairs]) ->
+  [{Key,MNess,Val} || Key <- separate_key(Key0)] ++ singleton_elements(Pairs).
+
+%% To be in sync with is_singleton_type/1.
+%% Does not separate tuples and maps as doing that has potential
+%% to be very expensive.
+separate_key(?atom(Atoms)) when Atoms =/= ?any ->
+  [t_atom(A) || A <- Atoms];
+separate_key(?number(_, _) = T) ->
+  t_elements(T);
+separate_key(?union(List)) ->
+  lists:append([separate_key(K) || K <- List, not t_is_none(K)]);
+separate_key(Key) -> [Key].
+
 %% Sorts, combines non-singleton pairs, and applies precendence and
 %% mandatoriness rules.
 map_from_form([], ShdwPs, MKs, Pairs, DefK, DefV) ->
@@ -5208,7 +5261,7 @@ t_form_to_string({ann_type, _L, [Var, Type]}) ->
 t_form_to_string({paren_type, _L, [Type]}) ->
   flat_format("(~ts)", [t_form_to_string(Type)]);
 t_form_to_string({remote_type, _L, [{atom, _, Mod}, {atom, _, Name}, Args]}) ->
-  ArgString = "(" ++ string:join(t_form_to_string_list(Args), ",") ++ ")",
+  ArgString = "(" ++ flat_join(t_form_to_string_list(Args), ",") ++ ")",
   flat_format("~w:~tw", [Mod, Name]) ++ ArgString;
 t_form_to_string({type, _L, arity, []}) -> "arity()";
 t_form_to_string({type, _L, binary, []}) -> "binary()";
@@ -5231,7 +5284,7 @@ t_form_to_string({type, _L, 'fun', []}) -> "fun()";
 t_form_to_string({type, _L, 'fun', [{type, _, any}, Range]}) ->
   "fun(...) -> " ++ t_form_to_string(Range);
 t_form_to_string({type, _L, 'fun', [{type, _, product, Domain}, Range]}) ->
-  "fun((" ++ string:join(t_form_to_string_list(Domain), ",") ++ ") -> "
+  "fun((" ++ flat_join(t_form_to_string_list(Domain), ",") ++ ") -> "
     ++ t_form_to_string(Range) ++ ")";
 t_form_to_string({type, _L, iodata, []}) -> "iodata()";
 t_form_to_string({type, _L, iolist, []}) -> "iolist()";
@@ -5239,7 +5292,7 @@ t_form_to_string({type, _L, list, [Type]}) ->
   "[" ++ t_form_to_string(Type) ++ "]";
 t_form_to_string({type, _L, map, any}) -> "map()";
 t_form_to_string({type, _L, map, Args}) ->
-  "#{" ++ string:join(t_form_to_string_list(Args), ",") ++ "}";
+  "#{" ++ flat_join(t_form_to_string_list(Args), ",") ++ "}";
 t_form_to_string({type, _L, map_field_assoc, [Key, Val]}) ->
   t_form_to_string(Key) ++ "=>" ++ t_form_to_string(Val);
 t_form_to_string({type, _L, map_field_exact, [Key, Val]}) ->
@@ -5251,7 +5304,7 @@ t_form_to_string({type, _L, nonempty_list, [Type]}) ->
   "[" ++ t_form_to_string(Type) ++ ",...]";
 t_form_to_string({type, _L, nonempty_string, []}) -> "nonempty_string()";
 t_form_to_string({type, _L, product, Elements}) ->
-  "<" ++ string:join(t_form_to_string_list(Elements), ",") ++ ">";
+  "<" ++ flat_join(t_form_to_string_list(Elements), ",") ++ ">";
 t_form_to_string({type, _L, range, [From, To]} = Type) ->
   case {erl_eval:partial_eval(From), erl_eval:partial_eval(To)} of
     {{integer, _, FromVal}, {integer, _, ToVal}} ->
@@ -5261,7 +5314,7 @@ t_form_to_string({type, _L, range, [From, To]} = Type) ->
 t_form_to_string({type, _L, record, [{atom, _, Name}]}) ->
   flat_format("#~tw{}", [Name]);
 t_form_to_string({type, _L, record, [{atom, _, Name}|Fields]}) ->
-  FieldString = string:join(t_form_to_string_list(Fields), ","),
+  FieldString = flat_join(t_form_to_string_list(Fields), ","),
   flat_format("#~tw{~ts}", [Name, FieldString]);
 t_form_to_string({type, _L, field_type, [{atom, _, Name}, Type]}) ->
   flat_format("~tw::~ts", [Name, t_form_to_string(Type)]);
@@ -5269,9 +5322,9 @@ t_form_to_string({type, _L, term, []}) -> "term()";
 t_form_to_string({type, _L, timeout, []}) -> "timeout()";
 t_form_to_string({type, _L, tuple, any}) -> "tuple()";
 t_form_to_string({type, _L, tuple, Args}) ->
-  "{" ++ string:join(t_form_to_string_list(Args), ",") ++ "}";
+  "{" ++ flat_join(t_form_to_string_list(Args), ",") ++ "}";
 t_form_to_string({type, _L, union, Args}) ->
-  string:join(t_form_to_string_list(Args), " | ");
+  flat_join(t_form_to_string_list(Args), " | ");
 t_form_to_string({type, _L, Name, []} = T) ->
    try
      M = mod,
@@ -5289,7 +5342,7 @@ t_form_to_string({type, _L, Name, []} = T) ->
   end;
 t_form_to_string({user_type, _L, Name, List}) ->
   flat_format("~tw(~ts)",
-              [Name, string:join(t_form_to_string_list(List), ",")]);
+              [Name, flat_join(t_form_to_string_list(List), ",")]);
 t_form_to_string({type, L, Name, List}) ->
   %% Compatibility: modules compiled before Erlang/OTP 18.0.
   t_form_to_string({user_type, L, Name, List}).
@@ -5447,7 +5500,8 @@ t_is_singleton(Type) ->
 t_is_singleton(Type, Opaques) ->
   do_opaque(Type, Opaques, fun is_singleton_type/1).
 
-%% Incomplete; not all representable singleton types are included.
+%% To be in sync with separate_key/1.
+%% Used to also recognize maps and tuples.
 is_singleton_type(?nil) -> true;
 is_singleton_type(?atom(?any)) -> false;
 is_singleton_type(?atom(Set)) ->
@@ -5455,13 +5509,6 @@ is_singleton_type(?atom(Set)) ->
 is_singleton_type(?int_range(V, V)) -> true;
 is_singleton_type(?int_set(Set)) ->
   ordsets:size(Set) =:= 1;
-is_singleton_type(?tuple(Types, Arity, _)) when is_integer(Arity) ->
-  lists:all(fun is_singleton_type/1, Types);
-is_singleton_type(?tuple_set([{Arity, [OnlyTuple]}])) when is_integer(Arity) ->
-  is_singleton_type(OnlyTuple);
-is_singleton_type(?map(Pairs, ?none, ?none)) ->
-  lists:all(fun({_,MNess,V}) -> MNess =:= ?mand andalso is_singleton_type(V)
-	    end, Pairs);
 is_singleton_type(_) ->
   false.
 
@@ -5556,7 +5603,7 @@ set_to_string(Set) ->
 	 true -> io_lib:write_string(atom_to_list(X), $'); % stupid emacs '
 	 false -> flat_format("~tw", [X])
        end || X <- set_to_list(Set)],
-  string:join(L, " | ").
+  flat_join(L, " | ").
 
 set_min([H|_]) -> H.
 
@@ -5566,6 +5613,9 @@ set_max(Set) ->
 flat_format(F, S) ->
   lists:flatten(io_lib:format(F, S)).
 
+flat_join(List, Sep) ->
+  lists:flatten(lists:join(Sep, List)).
+
 %%=============================================================================
 %% 
 %% Utilities for the binary type
diff --git a/lib/hipe/doc/src/Makefile b/lib/hipe/doc/src/Makefile
index a5edb80381..63154abd6a 100644
--- a/lib/hipe/doc/src/Makefile
+++ b/lib/hipe/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2006-2016. All Rights Reserved.
+# Copyright Ericsson AB 2006-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -36,9 +36,9 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN)
 # Target Specs
 # ----------------------------------------------------
 XML_APPLICATION_FILES =  ref_man.xml
-XML_REF3_FILES = 
+XML_REF3_FILES =
 
-XML_PART_FILES = part_notes.xml
+XML_PART_FILES =
 XML_CHAPTER_FILES = notes.xml
 
 BOOK_FILES = book.xml
@@ -47,7 +47,7 @@ XML_FILES = \
 	$(BOOK_FILES) $(XML_CHAPTER_FILES) \
 	$(XML_PART_FILES) $(XML_REF3_FILES) $(XML_APPLICATION_FILES)
 
-GIF_FILES = 
+GIF_FILES =
 
 # ----------------------------------------------------
 
@@ -68,9 +68,9 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE =  $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -90,20 +90,20 @@ man: $(MAN3_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
 	rm -f $(MAN3DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 distclean: clean
 realclean: clean
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/hipe/doc/src/fascicules.xml b/lib/hipe/doc/src/fascicules.xml
deleted file mode 100644
index b15610fa8b..0000000000
--- a/lib/hipe/doc/src/fascicules.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="yes">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/hipe/doc/src/notes.xml b/lib/hipe/doc/src/notes.xml
index 9167d0aaec..eadaee50e2 100644
--- a/lib/hipe/doc/src/notes.xml
+++ b/lib/hipe/doc/src/notes.xml
@@ -31,6 +31,35 @@
   </header>
   <p>This document describes the changes made to HiPE.</p>
 
+<section><title>Hipe 3.16.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p> Fix a bug regarding map types that caused Dialyzer to
+	    go into an infinite loop. A consequence of the fix is
+	    that compound map keys such as maps and tuples sometimes
+	    are handled with less precision than before. </p>
+          <p>
+	    Own Id: OTP-14572 Aux Id: seq13319 </p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Hipe 3.16</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/hipe/doc/src/part_notes.xml b/lib/hipe/doc/src/part_notes.xml
deleted file mode 100644
index 828c304fb5..0000000000
--- a/lib/hipe/doc/src/part_notes.xml
+++ /dev/null
@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2006</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>HiPE Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p><em>HiPE</em> - High Performance Erlang.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/hipe/icode/hipe_beam_to_icode.erl b/lib/hipe/icode/hipe_beam_to_icode.erl
index 2abecf7f18..167f5c67bb 100644
--- a/lib/hipe/icode/hipe_beam_to_icode.erl
+++ b/lib/hipe/icode/hipe_beam_to_icode.erl
@@ -2296,6 +2296,12 @@ split_code([First|Code], Label, Instr) ->
 
 split_code([Instr|Code], Label, Instr, Prev, As) when Prev =:= Label ->
   split_code_final(Code, As);  % drop both label and instruction
+split_code([{icode_end_try}|_]=Code, Label, {try_case,_}, Prev, As)
+  when Prev =:= Label ->
+  %% The try_case has been replaced with try_end as an optimization.
+  %% Keep this instruction, since it might be the only try_end instruction
+  %% for this try/catch block.
+  split_code_final(Code, As);  % drop label
 split_code([Other|_Code], Label, Instr, Prev, _As) when Prev =:= Label ->
   ?EXIT({missing_instr_after_label, Label, Instr, [Other, Prev | _As]});
 split_code([Other|Code], Label, Instr, Prev, As) ->
diff --git a/lib/hipe/llvm/hipe_llvm.erl b/lib/hipe/llvm/hipe_llvm.erl
index 641d3fda0a..ccd40162cb 100644
--- a/lib/hipe/llvm/hipe_llvm.erl
+++ b/lib/hipe/llvm/hipe_llvm.erl
@@ -1005,11 +1005,12 @@ pp_ins(Dev, Ver, I) ->
       write(Dev, [" ", adj_stack_offset(I),")\n"]);
     #llvm_meta{} ->
       write(Dev, ["!", meta_id(I), " = !{ "]),
-      write(Dev, string:join([if is_list(Op) -> ["!\"", Op, "\""];
-				 is_integer(Op) -> ["i32 ", integer_to_list(Op)];
-				 is_record(Op, llvm_meta) ->
-				  ["!", meta_id(Op)]
-			      end || Op <- meta_operands(I)], ", ")),
+      write(Dev, lists:join(", ",
+                            [if is_list(Op) -> ["!\"", Op, "\""];
+                                is_integer(Op) -> ["i32 ", integer_to_list(Op)];
+                                is_record(Op, llvm_meta) ->
+                                 ["!", meta_id(Op)]
+                             end || Op <- meta_operands(I)])),
       write(Dev, " }\n");
     Other ->
       exit({?MODULE, pp_ins, {"Unknown LLVM instruction", Other}})
diff --git a/lib/hipe/llvm/hipe_llvm_main.erl b/lib/hipe/llvm/hipe_llvm_main.erl
index 4eec0c752b..54c435c127 100644
--- a/lib/hipe/llvm/hipe_llvm_main.erl
+++ b/lib/hipe/llvm/hipe_llvm_main.erl
@@ -154,7 +154,7 @@ compiler_target_opt() ->
 
 %% @doc Join options.
 fix_opts(Opts) ->
-  string:join(Opts, " ").
+  lists:flatten(lists:join(" ", Opts)).
 
 %% @doc Translate optimization-level flag (default is "O2").
 trans_optlev_flag(Tool, Options) ->
diff --git a/lib/hipe/llvm/hipe_rtl_to_llvm.erl b/lib/hipe/llvm/hipe_rtl_to_llvm.erl
index 79e1bfd381..934717efc1 100644
--- a/lib/hipe/llvm/hipe_rtl_to_llvm.erl
+++ b/lib/hipe/llvm/hipe_rtl_to_llvm.erl
@@ -1537,7 +1537,7 @@ declare_switch_table({Name, {switch, {TableType, Labels, _, _}, _}}, FunName) ->
   LabelList = [mk_jump_label(L) || L <- Labels],
   Fun1 = fun(X) -> "i8* blockaddress(@" ++ FunName ++ ", " ++ X ++ ")" end,
   List2 = lists:map(Fun1, LabelList),
-  List3 = string:join(List2, ",\n"),
+  List3 = lists:flatten(lists:join(",\n", List2)),
   List4 = "[\n" ++ List3 ++ "\n]\n",
   hipe_llvm:mk_const_decl("@" ++ Name, "constant", TableType, List4).
 
@@ -1553,7 +1553,7 @@ declare_closure_labels(ClosureLabels, Relocs, Fun) ->
   Relocs1 = relocs_store("table_closures", {table_closures, ArityList}, Relocs),
   List2 =
     ["i8* blockaddress(@" ++ FunName ++ ", " ++ L ++ ")" || L <- LabelList],
-  List3 = string:join(List2, ",\n"),
+  List3 = lists:flatten(lists:join(",\n", List2)),
   List4 = "[\n" ++ List3 ++ "\n]\n",
   NrLabels = length(LabelList),
   ByteTyPtr = hipe_llvm:mk_pointer(hipe_llvm:mk_int(?BITS_IN_BYTE)),
diff --git a/lib/hipe/main/hipe.app.src b/lib/hipe/main/hipe.app.src
index 3c3a1004f1..5b2280594f 100644
--- a/lib/hipe/main/hipe.app.src
+++ b/lib/hipe/main/hipe.app.src
@@ -235,5 +235,5 @@
   {registered,[]},
   {applications, [kernel,stdlib]},
   {env, []},
-  {runtime_dependencies, ["syntax_tools-1.6.14","stdlib-2.5","kernel-3.0",
+  {runtime_dependencies, ["syntax_tools-1.6.14","stdlib-3.4","kernel-5.3",
 			  "erts-9.0","compiler-5.0"]}]}.
diff --git a/lib/hipe/main/hipe.erl b/lib/hipe/main/hipe.erl
index 19b4e8bfe2..f5f5bf5830 100644
--- a/lib/hipe/main/hipe.erl
+++ b/lib/hipe/main/hipe.erl
@@ -1616,11 +1616,11 @@ llvm_support_available() ->
 get_llvm_version() ->
   OptStr = os:cmd("opt -version"),
   SubStr = "LLVM version ", N = length(SubStr),
-  case string:str(OptStr, SubStr) of
-     0 -> % No opt available
+  case string:find(OptStr, SubStr) of
+     nomatch -> % No opt available
        {0, 0};
      S ->
-       case string:tokens(string:sub_string(OptStr, S + N), ".") of
+       case string:lexemes(string:slice(S, N), ".") of
 	 [MajorS, MinorS | _] ->
 	   case {string:to_integer(MajorS), string:to_integer(MinorS)} of
 	     {{Major, ""}, {Minor, _}}
diff --git a/lib/hipe/test/basic_SUITE_data/basic_exceptions.erl b/lib/hipe/test/basic_SUITE_data/basic_exceptions.erl
index 229a0516dc..d71b924d22 100644
--- a/lib/hipe/test/basic_SUITE_data/basic_exceptions.erl
+++ b/lib/hipe/test/basic_SUITE_data/basic_exceptions.erl
@@ -6,12 +6,13 @@
 %%%-------------------------------------------------------------------
 -module(basic_exceptions).
 
--export([test/0, test_catches/0]).
+-export([test/0]).
 
 %% functions used as arguments to spawn/3
 -export([bad_guy/2]).
 
 test() ->
+  ok = test_catches(),
   ok = test_catch_exit(42),
   ok = test_catch_throw(42),
   ok = test_catch_element(),
@@ -22,6 +23,7 @@ test() ->
   ok = test_pending_errors(),
   ok = test_bad_fun_call(),
   ok = test_guard_bif(),
+  ok = test_eclectic(),
   ok.
 
 %%--------------------------------------------------------------------
@@ -463,3 +465,117 @@ guard_bif('node/0', X, Y) when node() == Y ->
   {'node/0', X, Y};
 guard_bif('node/1', X, Y) when node(X) == Y ->
   {'node/1', X, Y}.
+
+%%--------------------------------------------------------------------
+%% Taken from trycatch_SUITE.erl (compiler test suite).
+%%
+%% Cases that are commented out contain exception information that was
+%% added to Erlang/OTP in commit e8d45ae14c6c3bdfcbbc7964228b004ef4f11ea6
+%% (May 2017) only in the BEAM emulator.  Thus, part of this test fails
+%% when compiled in native code.
+%% The remaining cases are uncommented so that they are properly tested
+%% in native code too.
+%%--------------------------------------------------------------------
+
+test_eclectic() ->
+  V = {make_ref(),3.1415926535,[[]|{}]},
+  {{value,{value,V},V},V} =
+    eclectic_1({foo,{value,{value,V}}}, undefined, {value,V}),
+  {{'EXIT',{V,[{?MODULE,foo,1,_}|_]}},V} =
+    eclectic_1({catch_foo,{error,V}}, undefined, {value,V}),
+  {{error,{exit,V},{'EXIT',V}},V} =
+    eclectic_1({foo,{error,{exit,V}}}, error, {value,V}),
+  %% {{value,{value,V},V},
+  %%        {'EXIT',{badarith,[{erlang,'+',[0,a],_},{?MODULE,my_add,2,_}|_]}}} =
+  %%     eclectic_1({foo,{value,{value,V}}}, undefined, {'add',{0,a}}),
+  {{'EXIT',V},V} =
+    eclectic_1({catch_foo,{exit,V}}, undefined, {throw,V}),
+  %% {{error,{'div',{1,0}},{'EXIT',{badarith,[{erlang,'div',[1,0],_},{?MODULE,my_div,2,_}|_]}}},
+  %%        {'EXIT',V}} =
+  %%     eclectic_1({foo,{error,{'div',{1,0}}}}, error, {exit,V}),
+  {{{error,V},{'EXIT',{V,[{?MODULE,foo,1,_}|_]}}},
+   {'EXIT',V}} =
+    eclectic_1({catch_foo,{throw,{error,V}}}, undefined, {exit,V}),
+  %%
+  {{value,{value,{value,V},V}},V} =
+    eclectic_2({value,{value,V}}, undefined, {value,V}),
+  {{value,{throw,{value,V},V}},V} =
+    eclectic_2({throw,{value,V}}, throw, {value,V}),
+  {{caught,{'EXIT',V}},undefined} =
+    eclectic_2({value,{value,V}}, undefined, {exit,V}),
+  {{caught,{'EXIT',{V,[{?MODULE,foo,1,_}|_]}}},undefined} =
+    eclectic_2({error,{value,V}}, throw, {error,V}),
+  %% The following fails in native code
+  %% %% {{caught,{'EXIT',{badarg,[{erlang,abs,[V],_}|_]}}},V} =
+  %% %%     eclectic_2({value,{'abs',V}}, undefined, {value,V}),
+  %% {{caught,{'EXIT',{badarith,[{erlang,'+',[0,a],_},{?MODULE,my_add,2,_}|_]}}},V} =
+  %%     eclectic_2({exit,{'add',{0,a}}}, exit, {value,V}),
+  {{caught,{'EXIT',V}},undefined} =
+    eclectic_2({value,{error,V}}, undefined, {exit,V}),
+  {{caught,{'EXIT',{V,[{?MODULE,foo,1,_}|_]}}},undefined} =
+    eclectic_2({throw,{'div',{1,0}}}, throw, {error,V}),
+  ok.
+
+eclectic_1(X, C, Y) ->
+  erase(eclectic),
+  Done = make_ref(),
+  Try =
+    try case X of
+          {catch_foo,V} -> catch {Done,foo(V)};
+          {foo,V} -> {Done,foo(V)}
+        end of
+        {Done,D} -> {value,D,catch foo(D)};
+        {'EXIT',_}=Exit -> Exit;
+        D -> {D,catch foo(D)}
+    catch
+      C:D -> {C,D,catch foo(D)}
+    after
+      put(eclectic, catch foo(Y))
+    end,
+  {Try,erase(eclectic)}.
+
+eclectic_2(X, C, Y) ->
+  Done = make_ref(),
+  erase(eclectic),
+  Catch =
+    case
+      catch
+        {Done,
+         try foo(X) of
+             V -> {value,V,foo(V)}
+         catch
+           C:D -> {C,D,foo(D)}
+         after
+           put(eclectic, foo(Y))
+         end} of
+        {Done,Z} -> {value,Z};
+        Z -> {caught,Z}
+      end,
+  {Catch,erase(eclectic)}.
+
+foo({value,Value}) -> Value;
+foo({'div',{A,B}}) ->
+  my_div(A, B);
+foo({'add',{A,B}}) ->
+  my_add(A, B);
+foo({'abs',X}) ->
+  my_abs(X);
+foo({error,Error}) ->
+  erlang:error(Error);
+foo({throw,Throw}) ->
+  erlang:throw(Throw);
+foo({exit,Exit}) ->
+  erlang:exit(Exit);
+foo({raise,{Class,Reason}}) ->
+  erlang:raise(Class, Reason);
+foo(Term) when not is_atom(Term) -> Term.
+%%foo(Atom) when is_atom(Atom) -> % must not be defined!
+
+my_div(A, B) ->
+  A div B.
+
+my_add(A, B) ->
+  A + B.
+
+my_abs(X) ->
+  abs(X).
diff --git a/lib/hipe/test/hipe_testsuite_driver.erl b/lib/hipe/test/hipe_testsuite_driver.erl
index 88576775ca..ee9c57a908 100644
--- a/lib/hipe/test/hipe_testsuite_driver.erl
+++ b/lib/hipe/test/hipe_testsuite_driver.erl
@@ -29,13 +29,9 @@ get_suites(SuitesWithSuiteSuffix) ->
     [S || {yes, S} <- Prefixes].
 
 suffix(String, Suffix) ->
-    case string:rstr(String, Suffix) of
-	0 -> no;
-	Index ->
-	    case string:substr(String, Index) =:= Suffix of
-		true -> {yes, string:sub_string(String, 1, Index-1)};
-		false -> no
-	    end
+    case string:split(String, Suffix, trailing) of
+	[Prefix,[]] -> {yes, Prefix};
+        _ -> no
     end.
 
 -spec file_type(file:filename()) -> {ok, file_type()} | {error, ext_posix()}.
diff --git a/lib/hipe/test/opt_verify_SUITE.erl b/lib/hipe/test/opt_verify_SUITE.erl
index 86083fa02b..24f43af275 100644
--- a/lib/hipe/test/opt_verify_SUITE.erl
+++ b/lib/hipe/test/opt_verify_SUITE.erl
@@ -44,7 +44,7 @@ call_elim(Config) ->
     Icode5 = call_elim_test_file(Config, F3, icode_call_elim),
     0 = substring_count(binary:bin_to_list(Icode5), "is_key"),
     Icode6 = call_elim_test_file(Config, F3, no_icode_call_elim),
-    3 = substring_count(binary:bin_to_list(Icode6), "is_key"),
+    2 = substring_count(binary:bin_to_list(Icode6), "is_key"),
     ok.
 
 call_elim_test_file(Config, FileName, Option) ->
@@ -59,7 +59,7 @@ call_elim_test_file(Config, FileName, Option) ->
 substring_count(Icode, Substring) ->
     substring_count(Icode, Substring, 0).
 substring_count(Icode, Substring, N) ->
-    case string:str(Icode, Substring) of
-        0 -> N;
-        I -> substring_count(lists:nthtail(I, Icode), Substring, N+1)
+    case string:find(Icode, Substring) of
+        nomatch -> N;
+        Prefix -> substring_count(string:prefix(Prefix, Substring), Substring, N+1)
     end.
diff --git a/lib/hipe/test/opt_verify_SUITE_data/call_elim_test_branches_opt_poss.erl b/lib/hipe/test/opt_verify_SUITE_data/call_elim_test_branches_opt_poss.erl
index c8ddfa1e75..12875f41af 100644
--- a/lib/hipe/test/opt_verify_SUITE_data/call_elim_test_branches_opt_poss.erl
+++ b/lib/hipe/test/opt_verify_SUITE_data/call_elim_test_branches_opt_poss.erl
@@ -6,17 +6,11 @@ test(A) ->
     if A > 0 ->
 	    true = has_a_field(#{a=>true}),
 	    true = has_a_field(#{b=>1, a=>"2"}),
-	    true = has_a_field(#{a=>5, c=>4}),
-	    true = has_tuple_field(#{{ab, 1}=><<"qq">>, 1      =>0}),
-	    true = has_tuple_field(#{up     =>down,     {ab, 1}=>[]}),
-	    true = has_tuple_field(#{{ab, 1}=>42});
+	    true = has_a_field(#{a=>5, c=>4});
        A =< 0 ->
 	    true = has_a_field(#{a=>q,     'A'  =>nej}),
 	    true = has_a_field(#{a=>"hej", false=>true}),
-	    true = has_a_field(#{a=>3}),
-	    true = has_tuple_field(#{{ab, 1}=>q,     'A'  =>nej}),
-	    true = has_tuple_field(#{{ab, 1}=>"hej", false=>true}),
-	    true = has_tuple_field(#{{ab, 1}=>3})
+	    true = has_a_field(#{a=>3})
     end,
     true = has_nil_field(#{[]         =>3,  b =>"seven"}),
     true = has_nil_field(#{"seventeen"=>17, []=>nil}),
diff --git a/lib/hipe/vsn.mk b/lib/hipe/vsn.mk
index 0ef4aa7f09..f88d9147b1 100644
--- a/lib/hipe/vsn.mk
+++ b/lib/hipe/vsn.mk
@@ -1 +1 @@
-HIPE_VSN = 3.16
+HIPE_VSN = 3.16.1
diff --git a/lib/ic/doc/src/Makefile b/lib/ic/doc/src/Makefile
index 19f12ac6b9..118f42b605 100644
--- a/lib/ic/doc/src/Makefile
+++ b/lib/ic/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1998-2016. All Rights Reserved.
+# Copyright Ericsson AB 1998-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -49,8 +49,7 @@ XML_REF3_FILES = ic.xml \
 	 	  ic_clib.xml \
 		  ic_c_protocol.xml
 
-XML_PART_FILES = part.xml \
-	 part_notes.xml
+XML_PART_FILES = part.xml
 
 XML_CHAPTER_FILES = \
 	ch_introduction.xml \
@@ -68,13 +67,9 @@ XML_CHAPTER_FILES = \
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
-GIF_FILES = \
-	book.gif \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif
+GIF_FILES =
 
 # ----------------------------------------------------
 
@@ -82,7 +77,7 @@ HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
 	$(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html)
 
 INFO_FILE = ../../info
-EXTRA_FILES = summary.html.src \
+EXTRA_FILES = \
 	$(DEFAULT_GIF_FILES) \
 	$(DEFAULT_HTML_FILES) \
 	$(XML_REF3_FILES:%.xml=$(HTMLDIR)/%.html) \
@@ -161,12 +156,12 @@ JAVADOC_GENERATED_FILES = $(JAVADOC_PACK_HTML_FILES) $(JAVADOC_INDEX_HTML_FILES)
 
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
 CLASSPATH = $(JAVA_SRC_ROOT):$(JAVA_INCL_ROOT)
 
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 JAVADOCFLAGS = \
 	-classpath $(CLASSPATH) \
 	-d ../doc/html/java \
@@ -197,7 +192,7 @@ clean clean_docs:
 	rm -rf $(HTMLDIR)/*
 	rm -f $(MAN3DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 $(JAVADOC_GENERATED_FILES): JAVADOC-GENERATED
 
@@ -212,12 +207,12 @@ gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 $(INDEX_TARGET): $(INDEX_SRC) ../../vsn.mk
 	sed -e 's;%VSN%;$(VSN);' $< > $@
 
-debug opt: 
+debug opt:
 
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/ic/doc/src/book.gif b/lib/ic/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/ic/doc/src/book.gif
+++ /dev/null
diff --git a/lib/ic/doc/src/fascicules.xml b/lib/ic/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/ic/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/ic/doc/src/ic.gif b/lib/ic/doc/src/ic.gif
deleted file mode 100644
index d78cf7d8ed..0000000000
--- a/lib/ic/doc/src/ic.gif
+++ /dev/null
diff --git a/lib/ic/doc/src/notes.gif b/lib/ic/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/ic/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/ic/doc/src/part_notes.xml b/lib/ic/doc/src/part_notes.xml
deleted file mode 100644
index 305b2c558d..0000000000
--- a/lib/ic/doc/src/part_notes.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>1998</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Idl Compiler Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date>1998-05-06</date>
-    <rev>2.1</rev>
-  </header>
-  <description>
-    <p>The IDL
-      Compiler Application is an Erlang implementation of a compiler for the IDL language.
-      </p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/ic/doc/src/ref_man.gif b/lib/ic/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/ic/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/ic/doc/src/summary.html.src b/lib/ic/doc/src/summary.html.src
deleted file mode 100644
index cb92e51791..0000000000
--- a/lib/ic/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-IDL compiler
diff --git a/lib/ic/doc/src/user_guide.gif b/lib/ic/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/ic/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/inets/doc/src/Makefile b/lib/inets/doc/src/Makefile
index cb71fbeb9c..14f12ee949 100644
--- a/lib/inets/doc/src/Makefile
+++ b/lib/inets/doc/src/Makefile
@@ -58,7 +58,7 @@ XML_REF3_FILES = \
 	mod_alias.xml \
 	mod_auth.xml \
 	mod_esi.xml \
-	mod_security.xml	
+	mod_security.xml
 
 XML_PART_FILES = \
 	part.xml
@@ -83,7 +83,7 @@ HTML_FILES = \
 	$(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html)
 
 INFO_FILE = ../../info
-EXTRA_FILES = summary.html.src \
+EXTRA_FILES = \
 	$(XML_REF3_FILES:%.xml=$(HTMLDIR)/%.html) \
 	$(XML_REF6_FILES:%.xml=$(HTMLDIR)/%.html) \
 	$(XML_CHAPTER_FILES:%.xml=$(HTMLDIR)/%.html)
@@ -95,10 +95,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -119,25 +119,25 @@ html: gifs $(HTML_REF_MAN_FILE)
 clean clean_docs: clean_html clean_man clean_pdf
 	rm -f errs core *~
 
-man: $(MAN3_FILES) 
+man: $(MAN3_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
-clean_pdf: 
+clean_pdf:
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
 
-clean_html: 
+clean_html:
 	rm -rf $(TOP_HTML_FILES) $(HTMLDIR)/*
 
 clean_man:
-	rm -f $(MAN3_FILES) 
+	rm -f $(MAN3_FILES)
 
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/inets/doc/src/book.gif b/lib/inets/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/inets/doc/src/book.gif
+++ /dev/null
diff --git a/lib/inets/doc/src/fascicules.xml b/lib/inets/doc/src/fascicules.xml
deleted file mode 100644
index c075478967..0000000000
--- a/lib/inets/doc/src/fascicules.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
-
diff --git a/lib/inets/doc/src/httpd.xml b/lib/inets/doc/src/httpd.xml
index d74635fc01..edf8731a82 100644
--- a/lib/inets/doc/src/httpd.xml
+++ b/lib/inets/doc/src/httpd.xml
@@ -279,7 +279,18 @@
 	requests defined by <c>max_keep_alive_requests</c>, the server 
 	closes the connection. The server closes it even if there are 
 	queued request. Default is no limit.</p>
-      </item>   
+      </item>
+
+      
+      <tag><marker id="max_client_body_chunk"></marker>{max_client_body_chunk, integer()}</tag>
+      <item>
+	<p>Enforces chunking of a HTTP PUT or POST body data to be deliverd
+	to the mod_esi callback. Note this is not supported for mod_cgi. 
+	Default is no limit e.i the whole body is deliverd as one entity, which could
+	be very memory consuming. <seealso marker="mod_esi">mod_esi(3)</seealso>.
+	</p>
+      </item>
+      
     </taglist>
     
     <marker id="props_admin"></marker>
diff --git a/lib/inets/doc/src/inets.gif b/lib/inets/doc/src/inets.gif
deleted file mode 100644
index 64968ae68a..0000000000
--- a/lib/inets/doc/src/inets.gif
+++ /dev/null
diff --git a/lib/inets/doc/src/min_head.gif b/lib/inets/doc/src/min_head.gif
deleted file mode 100644
index 67948a6378..0000000000
--- a/lib/inets/doc/src/min_head.gif
+++ /dev/null
diff --git a/lib/inets/doc/src/mod_esi.xml b/lib/inets/doc/src/mod_esi.xml
index 46cc796c8a..d024c8afa8 100644
--- a/lib/inets/doc/src/mod_esi.xml
+++ b/lib/inets/doc/src/mod_esi.xml
@@ -121,35 +121,60 @@
 
  <funcs>
    <func>
-     <name>Module:Function(SessionID, Env, Input)-> _ </name>
+     <name>Module:Function(SessionID, Env, Input)-> {continue, State} | _ </name>
      <fsummary>Creates a dynamic web page and returns it chunk by chunk 
      to the server process by calling <c>mod_esi:deliver/2</c>.</fsummary>
      <type>
        <v>SessionID = term()</v>
        <v>Env = env()</v>
-       <v>Input = string()</v>
+       <v>Input = string() | chunked_data()</v>
+       <v>chunked_data() = {first, Data::binary()} |
+       {continue, Data::binary(), State::term()} |
+       {last, Data::binary(), State::term()} </v>
+       <v>State = term()</v>
      </type>
       <desc>
         <p><c>Module</c> must be found in the code path and export
         <c>Function</c> with an arity of three. An <c>erlScriptAlias</c> must
         also be set up in the configuration file for the web server.</p>
-        <p>If the HTTP request is a 'post' request and a body is sent,
-        <c>content_length</c> is the length of the posted
-        data. If 'get' is used, <c>query_string</c> is the data after
-        <em>?</em> in the URL.</p>
-        <p><c>ParsedHeader</c> is the HTTP request as a key-value tuple
-        list. The keys in <c>ParsedHeader</c> are in lower case.</p>
-        <p><c>SessionID</c> is an identifier
-        the server uses when <c>deliver/2</c> is called. Do not
-        assume anything about the datatype.</p>
-        <p>Use this callback function to generate dynamic web
-        content dynamically. When a part of the page is generated, send the
-        data back to the client through <c>deliver/2</c>. Notice
-        that the first chunk of data sent to the client must at
-        least contain all HTTP header fields that the response
-        will generate. If the first chunk does not contain the
-        <em>end of HTTP header</em>, that is, <c>"\r\n\r\n",</c>
-        the server assumes that no HTTP header fields will be generated.</p>
+
+	<p><c>mod_esi:deliver/2</c> shall be used to generate the response
+	to the client and <c>SessionID</c> is an identifier that shall by used when
+	calling this function, do not assume anything about
+	the datatype. This function may be called
+	several times to chunk the response data. Notice that the
+	first chunk of data sent to the client must at least contain
+	all HTTP header fields that the response will generate. If the
+	first chunk does not contain the <em>end of HTTP header</em>,
+	that is, <c>"\r\n\r\n",</c> the server assumes that no HTTP
+	header fields will be generated.</p>
+
+	<p><c>Env</c> environment data of the request see description above.</p>
+		
+	<p><c>Input</c> is query data of a GET request or the body of
+	a PUT or POST request. The default behavior (legacy reasons)
+	for delivering the body, is that the whole body is gathered and
+	converted to a string. But if the httpd config parameter
+	<seealso
+	marker="httpd#max_client_body_chunk">max_client_body_chunk</seealso>
+	is set, the body will be delivered as binary chunks
+	instead. The maximum size of the chunks is either <seealso
+	marker="httpd#max_client_body_chunk">max_client_body_chunk</seealso>
+	or decide by the client if it uses HTTP chunked encoding
+	to send the body. When using the chunking
+	mechanism this callback must return {continue, State::term()}
+	for all calls where <c>Input</c> is <c>{first,
+	Data::binary()}</c> or <c>{continue, Data::binary(),
+	State::term()}</c>. When <c>Input</c> is <c>{last,
+	Data::binary(), State::term()}</c> the return value will be ignored.</p>
+	<note><p>Note that if the body is
+	small all data may be delivered in only one chunk and then the
+	callback will be called with {last, Data::binary(), undefined}
+	without getting called with <c>{first,
+	Data::binary()}</c>.</p></note><p>The input <c>State</c> is
+	the last returned <c>State</c>, in it the callback can include
+	any data that it needs to keep track of when handling the chunks.
+	</p>
       </desc>
    </func>
 
@@ -159,14 +184,13 @@
      This function is deprecated and is only kept for backwards compatibility.</fsummary>
      <type>
        <v>Env = env()</v>
-       <v>Input = string()</v>
+       <v>Input = string() </v>
        <v>Response = string()</v>
      </type>
       <desc>
         <p>This callback format consumes much memory, as the
         whole response must be generated before it is sent to the
-        user. This function is deprecated and is only kept for backwards
-        compatibility.
+        user. This callback format is deprecated. 
         For new development, use <c>Module:Function/3</c>.</p>
       </desc>
    </func>
diff --git a/lib/inets/doc/src/note.gif b/lib/inets/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/inets/doc/src/note.gif
+++ /dev/null
diff --git a/lib/inets/doc/src/notes.gif b/lib/inets/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/inets/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/inets/doc/src/notes.xml b/lib/inets/doc/src/notes.xml
index 2f4f20347a..10ef84d7cf 100644
--- a/lib/inets/doc/src/notes.xml
+++ b/lib/inets/doc/src/notes.xml
@@ -33,7 +33,63 @@
     <file>notes.xml</file>
   </header>
   
-  <section><title>Inets 6.4</title>
+  <section><title>Inets 6.4.2</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Make sure mod_log uses the correct status code</p>
+          <p>
+	    Own Id: OTP-14510</p>
+        </item>
+        <item>
+          <p>
+	    Correct behaviour of mod_disk_log to proparly handle
+	    repair options</p>
+          <p>
+	    Own Id: OTP-14530</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Inets 6.4.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    http_uri aligned to follow RFC 3986 and not convert "+"
+	    to space when decoding URIs.</p>
+          <p>
+	    Own Id: OTP-14573</p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    Added new option max_client_body_chunk to httpd server to
+	    allow chunked delivery of PUT and POST data to mod_esi
+	    callback. Note, new mod_esi callback implementation is
+	    required.</p>
+          <p>
+	    Also correct value provided by server_name environment
+	    variable</p>
+          <p>
+	    Own Id: OTP-14450</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Inets 6.4</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
       <list>
diff --git a/lib/inets/doc/src/part_notes.xml b/lib/inets/doc/src/part_notes.xml
deleted file mode 100644
index d10c829f4a..0000000000
--- a/lib/inets/doc/src/part_notes.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2002</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Inets</title>
-    <prepared>Micael Karlberg</prepared>
-    <docno></docno>
-    <date>2002-02-28</date>
-    <rev>3.0</rev>
-    <file>part_notes.sgml</file>
-  </header>
-  <description>
-    <p>A set of services such as a Web server and a ftp client etc. </p>
-    <p>For information about older versions see
-      <url href="part_notes_history_frame.html">release notes history</url>.</p>
-  </description>
-  <xi:include file="notes.xml"/>
-</part>
-
-
diff --git a/lib/inets/doc/src/part_notes_history.xml b/lib/inets/doc/src/part_notes_history.xml
deleted file mode 100644
index 66e3307f69..0000000000
--- a/lib/inets/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Inets</title>
-    <prepared>Micael Karlberg</prepared>
-    <docno></docno>
-    <date>2002-02-28</date>
-    <rev>3.0</rev>
-    <file>part_notes.sgml</file>
-  </header>
-  <include file="notes_history"></include>
-</part>
-
-
diff --git a/lib/inets/doc/src/ref_man.gif b/lib/inets/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/inets/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/inets/doc/src/summary.html.src b/lib/inets/doc/src/summary.html.src
deleted file mode 100644
index 17637a0787..0000000000
--- a/lib/inets/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-A set of services such as a web server and a ftp client etc
\ No newline at end of file
diff --git a/lib/inets/doc/src/user_guide.gif b/lib/inets/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/inets/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/inets/doc/src/warning.gif b/lib/inets/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/inets/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/inets/src/http_client/httpc_handler.erl b/lib/inets/src/http_client/httpc_handler.erl
index bd1d2e833a..6907bf5262 100644
--- a/lib/inets/src/http_client/httpc_handler.erl
+++ b/lib/inets/src/http_client/httpc_handler.erl
@@ -736,7 +736,7 @@ maybe_send_answer(Request, Answer, State) ->
     answer_request(Request, Answer, State).
 
 deliver_answer(#request{from = From} = Request) 
-  when is_pid(From) ->
+  when From =/= answer_sent ->
     Response = httpc_response:error(Request, socket_closed_remotely),
     httpc_response:send(From, Response);
 deliver_answer(_Request) ->
diff --git a/lib/inets/src/http_lib/http_uri.erl b/lib/inets/src/http_lib/http_uri.erl
index c4be5abd7c..7f1ca02014 100644
--- a/lib/inets/src/http_lib/http_uri.erl
+++ b/lib/inets/src/http_lib/http_uri.erl
@@ -117,8 +117,6 @@ decode(String) when is_list(String) ->
 decode(String) when is_binary(String) ->
     do_decode_binary(String).
 
-do_decode([$+|Rest]) ->
-    [$ |do_decode(Rest)];
 do_decode([$%,Hex1,Hex2|Rest]) ->
     [hex2dec(Hex1)*16+hex2dec(Hex2)|do_decode(Rest)];
 do_decode([First|Rest]) ->
@@ -126,8 +124,6 @@ do_decode([First|Rest]) ->
 do_decode([]) ->
     [].
 
-do_decode_binary(<<$+, Rest/bits>>) ->
-    <<$ , (do_decode_binary(Rest))/binary>>;
 do_decode_binary(<<$%, Hex:2/binary, Rest/bits>>) ->
     <<(binary_to_integer(Hex, 16)), (do_decode_binary(Rest))/binary>>;
 do_decode_binary(<<First:1/binary, Rest/bits>>) ->
diff --git a/lib/inets/src/http_server/httpd.erl b/lib/inets/src/http_server/httpd.erl
index 0b632d24e3..540e68e749 100644
--- a/lib/inets/src/http_server/httpd.erl
+++ b/lib/inets/src/http_server/httpd.erl
@@ -99,7 +99,14 @@ start_service(Conf) ->
 stop_service({Address, Port}) ->
     stop_service({Address, Port, ?DEFAULT_PROFILE});
 stop_service({Address, Port, Profile}) ->
-     httpd_sup:stop_child(Address, Port, Profile);
+    Name  = httpd_util:make_name("httpd_instance_sup", Address, Port, Profile),
+    Pid = whereis(Name),
+    MonitorRef = erlang:monitor(process, Pid),
+    Result = httpd_sup:stop_child(Address, Port, Profile),
+    receive
+        {'DOWN', MonitorRef, _, _, _} ->
+            Result
+    end;     
 stop_service(Pid) when is_pid(Pid) ->
     case service_info(Pid)  of
 	{ok, Info} ->	   
diff --git a/lib/inets/src/http_server/httpd_example.erl b/lib/inets/src/http_server/httpd_example.erl
index c893b10dca..45b6deba97 100644
--- a/lib/inets/src/http_server/httpd_example.erl
+++ b/lib/inets/src/http_server/httpd_example.erl
@@ -22,7 +22,7 @@
 -export([print/1]).
 -export([get/2, put/2, post/2, yahoo/2, test1/2, get_bin/2, peer/2]).
 
--export([newformat/3]).
+-export([newformat/3, post_chunked/3]).
 %% These are used by the inets test-suite
 -export([delay/1, chunk_timeout/3]).
 
@@ -131,15 +131,31 @@ footer() ->
   "</BODY>
 </HTML>\n".
 
-    
-newformat(SessionID, _Env, _Input)->
+post_chunked(_SessionID, _Env, {first, _Body} = _Bodychunk) ->
+    {continue, {state, 1}};
+post_chunked(_SessionID, _Env, {continue, _Body, {state, N}} = _Bodychunk) ->
+    {continue, {state, N+1}};
+post_chunked(SessionID, _Env, {last, _Body, {state, N}} = _Bodychunk) ->
+    mod_esi:deliver(SessionID, "Content-Type:text/html\r\n\r\n"),
+    mod_esi:deliver(SessionID, top("Received chunked body")),
+    mod_esi:deliver(SessionID, "Received" ++ integer_to_list(N) ++ "chunks"),
+    mod_esi:deliver(SessionID, footer());
+post_chunked(SessionID, _Env, {last, _Body, undefined} = _Bodychunk) ->
+    mod_esi:deliver(SessionID, "Content-Type:text/html\r\n\r\n"),
+    mod_esi:deliver(SessionID, top("Received chunked body")),
+    mod_esi:deliver(SessionID, "Received 1 chunk"),
+    mod_esi:deliver(SessionID, footer());
+post_chunked(_, _, _Body) ->
+    exit(body_not_chunked).
+
+newformat(SessionID,_,_) ->
     mod_esi:deliver(SessionID, "Content-Type:text/html\r\n\r\n"),
     mod_esi:deliver(SessionID, top("new esi format test")),
     mod_esi:deliver(SessionID, "This new format is nice<BR>"),
     mod_esi:deliver(SessionID, "This new format is nice<BR>"),
     mod_esi:deliver(SessionID, "This new format is nice<BR>"),
     mod_esi:deliver(SessionID, footer()).
-    
+ 
 %% ------------------------------------------------------
 
 delay(Time) when is_integer(Time) ->
diff --git a/lib/inets/src/http_server/httpd_request.erl b/lib/inets/src/http_server/httpd_request.erl
index 749f58c197..007d272323 100644
--- a/lib/inets/src/http_server/httpd_request.erl
+++ b/lib/inets/src/http_server/httpd_request.erl
@@ -36,7 +36,7 @@
 %% little at a time on a socket. 
 -export([
 	 parse_method/1, parse_uri/1, parse_version/1, parse_headers/1,
-	 whole_body/1
+	 whole_body/1, body_chunk_first/3, body_chunk/3, add_chunk/1
 	]).
 
 
@@ -76,13 +76,12 @@ body_data(Headers, Body) ->
     ContentLength = list_to_integer(Headers#http_request_h.'content-length'),
     case size(Body) - ContentLength of
  	0 ->
- 	    {binary_to_list(Body), <<>>};
+ 	    {Body, <<>>};
  	_ ->
  	    <<BodyThisReq:ContentLength/binary, Next/binary>> = Body,   
- 	    {binary_to_list(BodyThisReq), Next}
+ 	    {BodyThisReq, Next}
     end.
 
-
 %%-------------------------------------------------------------------------
 %% validate(Method, Uri, Version) -> ok | {error, {bad_request, Reason} |
 %%			     {error, {not_supported, {Method, Uri, Version}}
@@ -292,10 +291,46 @@ parse_headers(<<Octet, Rest/binary>>, Header, Headers, Current,
     parse_headers(Rest, [Octet | Header], Headers, Current + 1, Max,
 		  Options, Result).
 
+body_chunk_first(Body, 0 = Length, _) ->
+    whole_body(Body, Length);
+body_chunk_first(Body, Length, MaxChunk) ->
+    case body_chunk(Body, Length, MaxChunk) of
+        {ok, {last, NewBody}} ->
+            {ok, NewBody};
+        Other ->
+            Other
+    end.
+%% Used to chunk non chunk decoded post/put data
+add_chunk([<<>>, Body, Length, MaxChunk]) ->
+    body_chunk(Body, Length, MaxChunk);
+add_chunk([More, Body, Length, MaxChunk]) ->
+    body_chunk(<<Body/binary, More/binary>>, Length, MaxChunk).
+
+body_chunk(Body, Length, nolimit) ->
+    whole_body(Body, Length); 
+body_chunk(<<>> = Body, Length, MaxChunk) ->
+    {ok, {continue, ?MODULE, add_chunk, [Body, Length, MaxChunk]}};
+
+body_chunk(Body, Length, MaxChunk) when Length > MaxChunk ->
+    case size(Body) >= MaxChunk of 
+        true ->
+            <<Chunk:MaxChunk/binary, Rest/binary>> = Body,
+            {ok, {{continue, Chunk}, ?MODULE, add_chunk, [Rest, Length - MaxChunk, MaxChunk]}};
+        false ->
+            {ok, {continue, ?MODULE, add_chunk, [Body, Length, MaxChunk]}}
+    end;
+body_chunk(Body, Length, MaxChunk) ->
+    case size(Body) of
+        Length ->
+            {ok, {last, Body}};
+        _ ->
+            {ok, {continue, ?MODULE, add_chunk, [Body, Length, MaxChunk]}}
+    end.
+
 whole_body(Body, Length) ->
     case size(Body) of
 	N when N < Length, Length > 0 ->
-	  {?MODULE, whole_body, [Body, Length]};
+	  {?MODULE, add_chunk, [Body, Length, nolimit]};
 	N when N >= Length, Length >= 0 ->  
 	    %% When a client uses pipelining trailing data
 	    %% may be part of the next request!
@@ -443,6 +478,3 @@ check_header({"content-length", Value}, Maxsizes) ->
     end;
 check_header(_, _) ->
     ok.
-	    
-	    
-	    
diff --git a/lib/inets/src/http_server/httpd_request_handler.erl b/lib/inets/src/http_server/httpd_request_handler.erl
index 538d52b98d..d918f10424 100644
--- a/lib/inets/src/http_server/httpd_request_handler.erl
+++ b/lib/inets/src/http_server/httpd_request_handler.erl
@@ -49,7 +49,8 @@
 		headers,   %% #http_request_h{}
 		body,      %% binary()
 		data,      %% The total data received in bits, checked after 10s
-		byte_limit %% Bit limit per second before kick out
+		byte_limit, %% Bit limit per second before kick out
+                chunk 
 	       }).
 
 %%====================================================================
@@ -124,7 +125,8 @@ continue_init(Manager, ConfigDB, SocketType, Socket, TimeOut) ->
     NrOfRequest   = max_keep_alive_request(ConfigDB), 
     MaxContentLen = max_content_length(ConfigDB),
     Customize = customize(ConfigDB),
-
+    MaxChunk = max_client_body_chunk(ConfigDB),
+    
     {_, Status} = httpd_manager:new_connection(Manager),
     
     MFA = {httpd_request, parse, [[{max_uri, MaxURISize}, {max_header, MaxHeaderSize},
@@ -139,7 +141,8 @@ continue_init(Manager, ConfigDB, SocketType, Socket, TimeOut) ->
 		   status                 = Status,
 		   timeout                = TimeOut, 
 		   max_keep_alive_request = NrOfRequest,
-		   mfa                    = MFA},
+		   mfa                    = MFA,
+                   chunk                   = chunk_start(MaxChunk)},
     
     http_transport:setopts(SocketType, Socket, 
 			   [binary, {packet, 0}, {active, once}]),
@@ -194,6 +197,7 @@ handle_cast(Msg, #state{mod = ModData} = State) ->
 %%--------------------------------------------------------------------
 handle_info({Proto, Socket, Data}, 
 	    #state{mfa = {Module, Function, Args},
+                   chunk = {ChunkState, _},
 		   mod = #mod{socket_type = SockType, 
 			      socket = Socket} = ModData} = State) 
   when (((Proto =:= tcp) orelse 
@@ -207,7 +211,8 @@ handle_info({Proto, Socket, Data},
 		      _ ->
 			  State#state.data + byte_size(Data)
 		  end,
-    case PROCESSED of
+
+    case PROCESSED of       
         {ok, Result} ->
 	    NewState = case NewDataSize of
 			   undefined ->
@@ -215,7 +220,7 @@ handle_info({Proto, Socket, Data},
 			   _ ->
 			       set_new_data_size(cancel_request_timeout(State), NewDataSize)
 		       end,
-            handle_http_msg(Result, NewState); 
+            handle_msg(Result, NewState);
 	{error, {size_error, MaxSize, ErrCode, ErrStr}, Version} ->
 	    NewModData =  ModData#mod{http_version = Version},
 	    httpd_response:send_status(NewModData, ErrCode, ErrStr),
@@ -224,7 +229,10 @@ handle_info({Proto, Socket, Data},
 	    error_log(Reason, NewModData),
 	    {stop, normal, State#state{response_sent = true, 
 				       mod = NewModData}};
-
+        
+        {http_chunk = Module, Function, Args} when ChunkState =/= undefined ->
+            NewState = handle_chunk(Module, Function, Args, State),
+            {noreply, NewState};
 	NewMFA ->
 	    http_transport:setopts(SockType, Socket, [{active, once}]),
 	    case NewDataSize of
@@ -349,6 +357,34 @@ await_socket_ownership_transfer(AcceptTimeout) ->
 	    exit(accept_socket_timeout)
     end.
 
+
+%%% Internal chunking of client body 
+handle_msg({{continue, Chunk}, Module, Function, Args}, #state{chunk = {_, CbState}} = State) ->
+    handle_internal_chunk(State#state{chunk = {continue, CbState},
+                                      body = Chunk}, Module, Function, Args);
+handle_msg({continue, Module, Function, Args}, 	#state{mod = ModData} = State) ->
+    http_transport:setopts(ModData#mod.socket_type, 
+                           ModData#mod.socket, 
+                           [{active, once}]),
+    {noreply, State#state{mfa = {Module, Function, Args}}};
+handle_msg({last, Body}, #state{headers = Headers, chunk = {_, CbState}} = State) -> 
+    NewHeaders = Headers#http_request_h{'content-length' = integer_to_list(size(Body))},
+    handle_response(State#state{chunk = {last, CbState},
+                                headers = NewHeaders,
+                                body = Body});
+%%% Last data chunked by client
+handle_msg({ChunkedHeaders, Body}, #state{headers = Headers , chunk = {ChunkState, CbState}} = State) when ChunkState =/= undefined ->
+    NewHeaders = http_chunk:handle_headers(Headers, ChunkedHeaders),
+    handle_response(State#state{chunk = {last, CbState},
+                                headers = NewHeaders,
+                                body = Body});
+handle_msg({ChunkedHeaders, Body}, #state{headers = Headers , chunk = {undefined, _}} = State) ->
+    NewHeaders = http_chunk:handle_headers(Headers, ChunkedHeaders),
+    handle_response(State#state{headers = NewHeaders,
+                                body = Body});
+handle_msg(Result, State) ->
+    handle_http_msg(Result, State).
+
 handle_http_msg({_, _, Version, {_, _}, _}, 
 		#state{status = busy, mod = ModData} = State) -> 
     handle_manager_busy(State#state{mod = 
@@ -405,10 +441,6 @@ handle_http_msg({Method, Uri, Version, {RecordHeaders, Headers}, Body},
 	    error_log(Reason, ModData),
 	    {stop, normal, State#state{response_sent = true}}
     end;
-handle_http_msg({ChunkedHeaders, Body}, 
-		State = #state{headers = Headers}) ->
-    NewHeaders = http_chunk:handle_headers(Headers, ChunkedHeaders),
-    handle_response(State#state{headers = NewHeaders, body = Body});
 handle_http_msg(Body, State) ->
     handle_response(State#state{body = Body}).
 
@@ -443,22 +475,25 @@ handle_body(#state{mod = #mod{config_db = ConfigDB}} = State) ->
     
     end.
 	
-handle_body(#state{headers = Headers, body = Body, mod = ModData} = State,
+handle_body(#state{headers = Headers, body = Body, 
+                   chunk =  {ChunkState, CbState}, mod = #mod{config_db = ConfigDB} = ModData} = State,
 	    MaxHeaderSize, MaxBodySize) ->
+    MaxChunk = max_client_body_chunk(ConfigDB),
     case Headers#http_request_h.'transfer-encoding' of
 	"chunked" ->
 	    try http_chunk:decode(Body, MaxBodySize, MaxHeaderSize) of
-		{Module, Function, Args} ->
+                {Module, Function, Args} ->
 		    http_transport:setopts(ModData#mod.socket_type, 
 					   ModData#mod.socket, 
 					   [{active, once}]),
 		    {noreply, State#state{mfa = 
-					  {Module, Function, Args}}};
-		{ok, {ChunkedHeaders, NewBody}} ->
-		    NewHeaders = 
-			http_chunk:handle_headers(Headers, ChunkedHeaders),
-		    handle_response(State#state{headers = NewHeaders,
-						body = NewBody})
+                                              {Module, Function, Args},
+                                          chunk = chunk_start(MaxChunk)}};
+                {ok, {ChunkedHeaders, NewBody}} ->
+		    NewHeaders = http_chunk:handle_headers(Headers, ChunkedHeaders),	
+                    handle_response(State#state{headers = NewHeaders,
+                                                body = NewBody,
+                                                chunk = chunk_finish(ChunkState, CbState, MaxChunk)})
 	    catch 
 		throw:Error ->
 		    httpd_response:send_status(ModData, 400, 
@@ -476,21 +511,36 @@ handle_body(#state{headers = Headers, body = Body, mod = ModData} = State,
 	    error_log(Reason, ModData),
 	    {stop, normal, State#state{response_sent = true}};
 	_ -> 
-	    Length = list_to_integer(Headers#http_request_h.'content-length'),	    
+	    Length = list_to_integer(Headers#http_request_h.'content-length'),
+	    MaxChunk = max_client_body_chunk(ConfigDB),
 	    case ((Length =< MaxBodySize) or (MaxBodySize == nolimit)) of
 		true ->
-		    case httpd_request:whole_body(Body, Length) of 
-			{Module, Function, Args} ->
-			    http_transport:setopts(ModData#mod.socket_type, 
+		    case httpd_request:body_chunk_first(Body, Length, MaxChunk) of 
+                        %% This is the case that the we need more data to complete
+                        %% the body but chunking to the mod_esi user is not enabled.
+                        {Module, add_chunk = Function,  Args} ->  
+                            http_transport:setopts(ModData#mod.socket_type, 
+						   ModData#mod.socket, 
+						   [{active, once}]),
+			    {noreply, State#state{mfa = 
+						      {Module, Function, Args}}};
+                        %% Chunking to mod_esi user is enabled
+                        {ok, {continue, Module, Function, Args}} ->
+                                http_transport:setopts(ModData#mod.socket_type, 
 						   ModData#mod.socket, 
 						   [{active, once}]),
 			    {noreply, State#state{mfa = 
 						      {Module, Function, Args}}};
-			
-			{ok, NewBody} ->
-			    handle_response(
-			      State#state{headers = Headers,
-					  body = NewBody})
+                        {ok, {{continue, Chunk}, Module, Function, Args}} ->
+                            handle_internal_chunk(State#state{chunk =  chunk_start(MaxChunk), 
+                                                              body = Chunk}, Module, Function, Args);                   
+                        %% Whole body delivered, if chunking mechanism is enabled the whole
+                        %% body fits in one chunk.
+                        {ok, NewBody} ->
+                            handle_response(State#state{chunk = chunk_finish(ChunkState, 
+                                                                             CbState, MaxChunk),
+                                                        headers = Headers,
+                                                        body = NewBody})
 		    end;
 		false ->
 		    httpd_response:send_status(ModData, 413, "Body too long"),
@@ -550,15 +600,61 @@ expect(Headers, _, ConfigDB) ->
 	    end
     end.
 
+handle_chunk(http_chunk = Module, decode_data = Function, 
+             [ChunkSize, TotalChunk, {MaxBodySize, BodySoFar, _AccLength, MaxHeaderSize}],
+             #state{chunk = {_, CbState},
+                    mod = #mod{socket_type = SockType,
+                               socket = Socket} = ModData} = State) ->
+    {continue, NewCbState} = httpd_response:handle_continuation(ModData#mod{entity_body = 
+                                                                                {continue, BodySoFar, CbState}}),
+    http_transport:setopts(SockType, Socket, [{active, once}]),
+    State#state{chunk = {continue, NewCbState}, mfa = {Module, Function, [ChunkSize, TotalChunk, {MaxBodySize, <<>>, 0, MaxHeaderSize}]}};
+
+handle_chunk(http_chunk = Module, decode_size = Function, 
+             [Data, HexList, _AccSize, {MaxBodySize, BodySoFar, _AccLength, MaxHeaderSize}],
+             #state{chunk = {_, CbState},
+                    mod = #mod{socket_type = SockType,
+                               socket = Socket} = ModData} = State) ->
+    {continue, NewCbState} = httpd_response:handle_continuation(ModData#mod{entity_body = {continue, BodySoFar, CbState}}),
+    http_transport:setopts(SockType, Socket, [{active, once}]),
+    State#state{chunk = {continue, NewCbState}, mfa = {Module, Function, [Data, HexList, 0, {MaxBodySize, <<>>, 0, MaxHeaderSize}]}};
+handle_chunk(Module, Function, Args, #state{mod = #mod{socket_type = SockType,
+                                                                      socket = Socket}} = State) ->
+    http_transport:setopts(SockType, Socket, [{active, once}]),
+    State#state{mfa = {Module, Function, Args}}.
+
+handle_internal_chunk(#state{chunk = {ChunkState, CbState}, body = Chunk, 
+                             mod = #mod{socket_type = SockType,
+                                        socket = Socket} = ModData} = State, Module, Function, Args)->
+    Bodychunk = body_chunk(ChunkState, CbState, Chunk),
+    {continue, NewCbState} = httpd_response:handle_continuation(ModData#mod{entity_body = Bodychunk}),
+    case Args of
+        [<<>> | _] ->
+            http_transport:setopts(SockType, Socket, [{active, once}]),
+            {noreply, State#state{chunk = {continue, NewCbState}, mfa = {Module, Function, Args}}};
+        _ ->
+            handle_info({dummy, Socket, <<>>}, State#state{chunk = {continue, NewCbState}, 
+                                                           mfa = {Module, Function, Args}})
+    end.
+
+handle_response(#state{body    = Body, 
+                       headers = Headers,
+		       mod     = ModData, 
+                       chunk   = {last, CbState},
+		       max_keep_alive_request = Max} = State) when Max > 0 ->
+    {NewBody, Data} = httpd_request:body_data(Headers, Body),
+    ok = httpd_response:generate_and_send_response(
+           ModData#mod{entity_body = {last, NewBody, CbState}}),     
+    handle_next_request(State#state{response_sent = true}, Data);
 handle_response(#state{body    = Body, 
 		       mod     = ModData, 
 		       headers = Headers,
 		       max_keep_alive_request = Max} = State) when Max > 0 ->
     {NewBody, Data} = httpd_request:body_data(Headers, Body),
+    %% Backwards compatible, may cause memory explosion
     ok = httpd_response:generate_and_send_response(
-	   ModData#mod{entity_body = NewBody}),
+           ModData#mod{entity_body = binary_to_list(NewBody)}),
     handle_next_request(State#state{response_sent = true}, Data);
-
 handle_response(#state{body    = Body, 
 		       headers = Headers, 
 		       mod     = ModData} = State) ->
@@ -578,6 +674,7 @@ handle_next_request(#state{mod = #mod{connection = true} = ModData,
     MaxURISize    = max_uri_size(ModData#mod.config_db), 
     MaxContentLen = max_content_length(ModData#mod.config_db),
     Customize = customize(ModData#mod.config_db),
+    MaxChunk = max_client_body_chunk(ModData#mod.config_db),
 
     MFA = {httpd_request, parse, [[{max_uri, MaxURISize}, {max_header, MaxHeaderSize},
 				   {max_version, ?HTTP_MAX_VERSION_STRING}, 
@@ -590,6 +687,7 @@ handle_next_request(#state{mod = #mod{connection = true} = ModData,
 			   max_keep_alive_request = decrease(Max),
 			   headers                = undefined, 
 			   body                   = undefined,
+                           chunk                  = chunk_start(MaxChunk),
 			   response_sent          = false},
     
     NewState = activate_request_timeout(TmpState),
@@ -647,6 +745,9 @@ error_log(ReasonString,  #mod{config_db = ConfigDB}) ->
 max_header_size(ConfigDB) ->
     httpd_util:lookup(ConfigDB, max_header_size, ?HTTP_MAX_HEADER_SIZE).
 
+max_client_body_chunk(ConfigDB) ->
+    httpd_util:lookup(ConfigDB, max_client_body_chunk, nolimit).
+
 max_uri_size(ConfigDB) ->
     httpd_util:lookup(ConfigDB, max_uri_size, ?HTTP_MAX_URI_SIZE).
 
@@ -661,3 +762,17 @@ max_content_length(ConfigDB) ->
 
 customize(ConfigDB) ->    
     httpd_util:lookup(ConfigDB, customize, httpd_custom).
+
+chunk_start(nolimit) ->
+    {undefined, undefined};
+chunk_start(_) ->
+    {first, undefined}.
+chunk_finish(_, _, nolimit) ->
+    {undefined, undefined};
+chunk_finish(_, CbState, _) ->
+    {last, CbState}.
+
+body_chunk(first, _, Chunk) ->
+    {first, Chunk};
+body_chunk(ChunkState, CbState, Chunk) ->
+    {ChunkState, Chunk, CbState}.
diff --git a/lib/inets/src/http_server/httpd_response.erl b/lib/inets/src/http_server/httpd_response.erl
index effa273e92..6b9053fda6 100644
--- a/lib/inets/src/http_server/httpd_response.erl
+++ b/lib/inets/src/http_server/httpd_response.erl
@@ -21,7 +21,7 @@
 -module(httpd_response).
 -export([generate_and_send_response/1, send_status/3, send_header/3, 
 	 send_body/3, send_chunk/3, send_final_chunk/2, send_final_chunk/3, 
-	 split_header/2, is_disable_chunked_send/1, cache_headers/2]).
+	 split_header/2, is_disable_chunked_send/1, cache_headers/2, handle_continuation/1]).
 -export([map_status_code/2]).
 
 -include_lib("inets/src/inets_app/inets_internal.hrl").
@@ -31,6 +31,9 @@
 
 -define(VMODULE,"RESPONSE").
 
+handle_continuation(Mod) ->
+    generate_and_send_response(Mod).
+
 %% If peername does not exist the client already discarded the
 %% request so we do not need to send a reply.
 generate_and_send_response(#mod{init_data =
@@ -39,6 +42,8 @@ generate_and_send_response(#mod{init_data =
 generate_and_send_response(#mod{config_db = ConfigDB} = ModData) ->
     Modules = httpd_util:lookup(ConfigDB, modules, ?DEFAULT_MODS),
     case traverse_modules(ModData, Modules) of
+        {continue, _} = Continue ->
+            Continue;
 	done ->
 	    ok;
 	{proceed, Data} ->
@@ -69,17 +74,15 @@ generate_and_send_response(#mod{config_db = ConfigDB} = ModData) ->
 traverse_modules(ModData,[]) ->
   {proceed,ModData#mod.data};
 traverse_modules(ModData,[Module|Rest]) ->
-    ?hdrd("traverse modules", [{callback_module, Module}]), 
     try apply(Module, do, [ModData]) of
+        {continue, _} = Continue ->
+            Continue;
 	done ->
-	    ?hdrt("traverse modules - done", []), 
-	    done;
+            done;
 	{break, NewData} ->
-	    ?hdrt("traverse modules - break", [{new_data, NewData}]), 
-	    {proceed, NewData};
+            {proceed, NewData};
 	{proceed, NewData} ->
-	    ?hdrt("traverse modules - proceed", [{new_data, NewData}]), 
-	    traverse_modules(ModData#mod{data = NewData}, Rest)
+            traverse_modules(ModData#mod{data = NewData}, Rest)
     catch 
 	T:E ->
 	    String = 
@@ -104,15 +107,10 @@ send_status(#mod{socket_type = SocketType,
 		 socket      = Socket, 
 		 config_db   = ConfigDB} = ModData, StatusCode, PhraseArgs) ->
 
-    ?hdrd("send status", [{status_code, StatusCode}, 
-			  {phrase_args, PhraseArgs}]), 
-
     ReasonPhrase = httpd_util:reason_phrase(StatusCode),
     Message      = httpd_util:message(StatusCode, PhraseArgs, ConfigDB),
     Body         = get_body(ReasonPhrase, Message),
 
-    ?hdrt("send status - header", [{reason_phrase, ReasonPhrase}, 
-     				   {message,       Message}]), 
     send_header(ModData, StatusCode, 
 		[{content_type,   "text/html"},
 		 {content_length, integer_to_list(length(Body))}]),
diff --git a/lib/inets/src/http_server/httpd_script_env.erl b/lib/inets/src/http_server/httpd_script_env.erl
index e15613273e..d7c92c59ef 100644
--- a/lib/inets/src/http_server/httpd_script_env.erl
+++ b/lib/inets/src/http_server/httpd_script_env.erl
@@ -74,9 +74,13 @@ which_peercert(#mod{socket_type = {Type, _}, socket = Socket}) when Type == essl
 which_peercert(_) -> %% Not an ssl connection
     undefined.
 
+
 which_resolve(#mod{init_data = #init_data{resolve = Resolve}}) ->
     Resolve.
 
+which_name(#mod{config_db = ConfigDB}) ->
+    httpd_util:lookup(ConfigDB, server_name).
+
 which_method(#mod{method = Method}) ->
     Method.
 
@@ -85,7 +89,8 @@ which_request_uri(#mod{request_uri = RUri}) ->
 
 create_basic_elements(esi, ModData) ->
     [{server_software,   which_server(ModData)},
-     {server_name,       which_resolve(ModData)},
+     {server_name,       which_name(ModData)},
+     {host_name,         which_resolve(ModData)},
      {gateway_interface, ?GATEWAY_INTERFACE},
      {server_protocol,   ?SERVER_PROTOCOL},
      {server_port,       which_port(ModData)},
@@ -96,7 +101,8 @@ create_basic_elements(esi, ModData) ->
 
 create_basic_elements(cgi, ModData) ->
     [{"SERVER_SOFTWARE",   which_server(ModData)},
-     {"SERVER_NAME",       which_resolve(ModData)},
+     {"SERVER_NAME",       which_name(ModData)},
+     {"HOST_NAME",         which_resolve(ModData)},
      {"GATEWAY_INTERFACE", ?GATEWAY_INTERFACE},
      {"SERVER_PROTOCOL",   ?SERVER_PROTOCOL},
      {"SERVER_PORT",       integer_to_list(which_port(ModData))},
@@ -160,9 +166,9 @@ create_script_elements(cgi, path_info, PathInfo, ModData) ->
     [{"PATH_INFO", PathInfo},
      {"PATH_TRANSLATED", PathTranslated}];
 create_script_elements(esi, entity_body, Body, _) ->
-    [{content_length, httpd_util:flatlength(Body)}]; 
+    [{content_length, integer_to_list(httpd_util:flatlength(Body))}]; 
 create_script_elements(cgi, entity_body, Body, _) ->
-    [{"CONTENT_LENGTH", httpd_util:flatlength(Body)}]; 
+    [{"CONTENT_LENGTH", integer_to_list(httpd_util:flatlength(Body))}]; 
 create_script_elements(_, _, _, _) ->
     [].
 
diff --git a/lib/inets/src/http_server/mod_esi.erl b/lib/inets/src/http_server/mod_esi.erl
index b21af1418c..3a589ca5f0 100644
--- a/lib/inets/src/http_server/mod_esi.erl
+++ b/lib/inets/src/http_server/mod_esi.erl
@@ -31,7 +31,6 @@
 
 -include("httpd.hrl").
 -include("httpd_internal.hrl").
--include("inets_internal.hrl").
 
 -define(VMODULE,"ESI").
 -define(DEFAULT_ERL_TIMEOUT,15000).
@@ -69,7 +68,6 @@ deliver(_SessionID, _Data) ->
 %% Description:  See httpd(3) ESWAPI CALLBACK FUNCTIONS
 %%-------------------------------------------------------------------------
 do(ModData) ->
-    ?hdrt("do", []),
     case proplists:get_value(status, ModData#mod.data) of
 	{_StatusCode, _PhraseArgs, _Reason} ->
 	    {proceed, ModData#mod.data};
@@ -190,7 +188,6 @@ store({erl_script_nocache, Value}, _) ->
 %%% Internal functions
 %%%========================================================================   
 generate_response(ModData) ->
-    ?hdrt("generate response", []),
     case scheme(ModData#mod.request_uri, ModData#mod.config_db) of
 	{eval, ESIBody, Modules} ->
 	    eval(ModData, ESIBody, Modules);
@@ -242,7 +239,6 @@ alias_match_str(Alias, eval_script_alias) ->
 
 erl(#mod{method = Method} = ModData, ESIBody, Modules) 
   when (Method =:= "GET") orelse (Method =:= "HEAD") orelse (Method =:= "DELETE") ->
-    ?hdrt("erl", [{method, Method}]),
     case httpd_util:split(ESIBody,":|%3A|/",2) of
 	{ok, [ModuleName, FuncAndInput]} ->
 	    case httpd_util:split(FuncAndInput,"[\?/]",2) of
@@ -273,14 +269,12 @@ erl(#mod{method = "PUT", entity_body = Body} = ModData,
 		    generate_webpage(ModData, ESIBody, Modules,
 				     list_to_atom(ModuleName),
 				     FunctionName, {Input,Body},
-				     [{entity_body, Body} |
-				      script_elements(FuncAndInput, Input)]);
+				     script_elements(FuncAndInput, Input));
 		{ok, [FunctionName]} ->
 		    generate_webpage(ModData, ESIBody, Modules,
 				     list_to_atom(ModuleName),
 				     FunctionName, {undefined,Body},
-				     [{entity_body, Body} |
-				      script_elements(FuncAndInput, "")]);
+				     script_elements(FuncAndInput, ""));
 		{ok, BadRequest} ->
 		    {proceed,[{status,{400,none, BadRequest}} |
 			      ModData#mod.data]}
@@ -290,12 +284,11 @@ erl(#mod{method = "PUT", entity_body = Body} = ModData,
     end;   
 
 erl(#mod{method = "POST", entity_body = Body} = ModData, ESIBody, Modules) ->
-    ?hdrt("erl", [{method, post}]),
     case httpd_util:split(ESIBody,":|%3A|/",2) of
 	{ok,[ModuleName, Function]} ->
 	    generate_webpage(ModData, ESIBody, Modules, 
 			     list_to_atom(ModuleName), 
-			     Function, Body, [{entity_body, Body}]);
+			     Function, Body, []);
 	{ok, BadRequest} ->
 	    {proceed,[{status, {400, none, BadRequest}} | ModData#mod.data]}
     end;
@@ -304,7 +297,6 @@ erl(#mod{request_uri  = ReqUri,
 	 method       = "PATCH",
          http_version = Version, 
 	 data         = Data}, _ESIBody, _Modules) ->
-    ?hdrt("erl", [{method, patch}]),
     {proceed, [{status,{501,{"PATCH", ReqUri, Version},
 			?NICE("Erl mechanism doesn't support method PATCH")}}|
 	       Data]}.
@@ -315,7 +307,6 @@ generate_webpage(ModData, ESIBody, [all], Module, FunctionName,
 		     FunctionName, Input, ScriptElements);
 generate_webpage(ModData, ESIBody, Modules, Module, FunctionName,
 		 Input, ScriptElements) ->
-    ?hdrt("generate webpage", []),
     Function = list_to_atom(FunctionName),
     case lists:member(Module, Modules) of
 	true ->
@@ -337,7 +328,6 @@ generate_webpage(ModData, ESIBody, Modules, Module, FunctionName,
 %% Old API that waits for the dymnamic webpage to be totally generated
 %% before anythig is sent back to the client.
 erl_scheme_webpage_whole(Mod, Func, Env, Input, ModData) ->
-    ?hdrt("erl_scheme_webpage_whole", [{module, Mod}, {function, Func}]),
     case (catch Mod:Func(Env, Input)) of
 	{'EXIT',{undef, _}} ->
 	    {proceed, [{status, {404, ModData#mod.request_uri, "Not found"}}
@@ -375,7 +365,6 @@ erl_scheme_webpage_whole(Mod, Func, Env, Input, ModData) ->
 %% in small chunks at the time during generation.
 erl_scheme_webpage_chunk(Mod, Func, Env, Input, ModData) -> 
     process_flag(trap_exit, true),
-    ?hdrt("erl_scheme_webpage_chunk", [{module, Mod}, {function, Func}]),
     Self = self(),
     %% Spawn worker that generates the webpage.
     %% It would be nicer to use erlang:function_exported/3 but if the 
@@ -386,7 +375,9 @@ erl_scheme_webpage_chunk(Mod, Func, Env, Input, ModData) ->
 			{'EXIT', {undef,_}} ->
 			    %% Will force fallback on the old API
 			    exit(erl_scheme_webpage_chunk_undefined);
-			_ ->
+			{continue, _} = Continue ->
+                            exit(Continue);
+                        _ ->
 			    ok  
 		    end
 	    end),
@@ -400,13 +391,12 @@ deliver_webpage_chunk(#mod{config_db = Db} = ModData, Pid) ->
     deliver_webpage_chunk(ModData, Pid, Timeout).
 
 deliver_webpage_chunk(#mod{config_db = Db} = ModData, Pid, Timeout) ->
-    ?hdrt("deliver_webpage_chunk", [{timeout, Timeout}]),
     case receive_headers(Timeout) of
 	{error, Reason} ->
 	    %% Happens when webpage generator callback/3 is undefined
-	    ?hdrv("deliver_webpage_chunk - failed receiving headers", 
-		  [{reason, Reason}]),
 	    {error, Reason}; 
+        {continue, _} = Continue ->
+            Continue;
 	{Headers, Body} ->
 	    case httpd_esi:handle_headers(Headers) of
 		{proceed, AbsPath} ->
@@ -430,7 +420,6 @@ deliver_webpage_chunk(#mod{config_db = Db} = ModData, Pid, Timeout) ->
 				IsDisableChunkedSend)
 	    end;
 	timeout ->
-	    ?hdrv("deliver_webpage_chunk - timeout", []),
 	    send_headers(ModData, 504, [{"connection", "close"}]),
 	    httpd_socket:close(ModData#mod.socket_type, ModData#mod.socket),
 	    {proceed,[{response, {already_sent, 200, 0}} | ModData#mod.data]}
@@ -439,16 +428,14 @@ deliver_webpage_chunk(#mod{config_db = Db} = ModData, Pid, Timeout) ->
 receive_headers(Timeout) ->
     receive
 	{esi_data, Chunk} ->
-	    ?hdrt("receive_headers - received esi data (esi)", []),
 	    httpd_esi:parse_headers(lists:flatten(Chunk));		
 	{ok, Chunk} ->
-	    ?hdrt("receive_headers - received esi data (ok)", []),
 	    httpd_esi:parse_headers(lists:flatten(Chunk));		
 	{'EXIT', Pid, erl_scheme_webpage_chunk_undefined} when is_pid(Pid) ->
-	    ?hdrd("receive_headers - exit:chunk-undef", []),
 	    {error, erl_scheme_webpage_chunk_undefined};
-	{'EXIT', Pid, Reason} when is_pid(Pid) ->
-	    ?hdrv("receive_headers - exit", [{reason, Reason}]),
+	{'EXIT', Pid, {continue, _} = Continue} when is_pid(Pid) ->
+            Continue;
+        {'EXIT', Pid, Reason} when is_pid(Pid) ->
 	    exit({mod_esi_linked_process_died, Pid, Reason})
     after Timeout ->
 	    timeout
@@ -463,7 +450,6 @@ handle_body(_, #mod{method = "HEAD"} = ModData, _, _, Size, _) ->
     {proceed, [{response, {already_sent, 200, Size}} | ModData#mod.data]};
 
 handle_body(Pid, ModData, Body, Timeout, Size, IsDisableChunkedSend) ->
-    ?hdrt("handle_body - send chunk", [{timeout, Timeout}, {size, Size}]),
     httpd_response:send_chunk(ModData, Body, IsDisableChunkedSend),
     receive 
 	{esi_data, Data} when is_binary(Data) ->
@@ -543,7 +529,6 @@ eval(#mod{request_uri  = ReqUri,
 	  method       = "PUT",
 	  http_version = Version, 
 	  data         = Data}, _ESIBody, _Modules) ->
-    ?hdrt("eval", [{method, put}]),
     {proceed,[{status,{501,{"PUT", ReqUri, Version},
 		       ?NICE("Eval mechanism doesn't support method PUT")}}|
 	      Data]};
@@ -552,7 +537,6 @@ eval(#mod{request_uri  = ReqUri,
 	  method       = "DELETE",
 	  http_version = Version, 
 	  data         = Data}, _ESIBody, _Modules) ->
-    ?hdrt("eval", [{method, delete}]),
     {proceed,[{status,{501,{"DELETE", ReqUri, Version},
 		       ?NICE("Eval mechanism doesn't support method DELETE")}}|
 	      Data]};
@@ -561,14 +545,12 @@ eval(#mod{request_uri  = ReqUri,
 	  method       = "POST",
 	  http_version = Version, 
 	  data         = Data}, _ESIBody, _Modules) ->
-    ?hdrt("eval", [{method, post}]),
     {proceed,[{status,{501,{"POST", ReqUri, Version},
 		       ?NICE("Eval mechanism doesn't support method POST")}}|
 	      Data]};
 
 eval(#mod{method = Method} = ModData, ESIBody, Modules) 
   when (Method =:= "GET") orelse (Method =:= "HEAD") ->
-    ?hdrt("eval", [{method, Method}]),
     case is_authorized(ESIBody, Modules) of
 	true ->
 	    case generate_webpage(ESIBody) of
diff --git a/lib/inets/src/inets_app/inets.appup.src b/lib/inets/src/inets_app/inets.appup.src
index f9ad8709d9..a86413147c 100644
--- a/lib/inets/src/inets_app/inets.appup.src
+++ b/lib/inets/src/inets_app/inets.appup.src
@@ -18,14 +18,10 @@
 %% %CopyrightEnd%
 {"%VSN%",
  [
-  {<<"6.2.4">>, [{load_module, httpd_request_handler, 
-		  soft_purge, soft_purge, []}]},
   {<<"6\\..*">>,[{restart_application, inets}]},
   {<<"5\\..*">>,[{restart_application, inets}]}
  ],
  [
-  {<<"6.2.4">>, [{load_module, httpd_request_handler, 
-		  soft_purge, soft_purge, []}]},
   {<<"6\\..*">>,[{restart_application, inets}]},
   {<<"5\\..*">>,[{restart_application, inets}]}
  ]
diff --git a/lib/inets/test/httpc_SUITE.erl b/lib/inets/test/httpc_SUITE.erl
index e6dcd2285f..a39e786c79 100644
--- a/lib/inets/test/httpc_SUITE.erl
+++ b/lib/inets/test/httpc_SUITE.erl
@@ -42,7 +42,8 @@
 %% Common Test interface functions -----------------------------------
 %%--------------------------------------------------------------------
 suite() ->
-    [{ct_hooks,[ts_install_cth]}
+    [{ct_hooks,[ts_install_cth]},
+     {timetrap,{seconds, 30}}
     ].
 
 all() ->
@@ -129,7 +130,8 @@ only_simulated() ->
      port_in_host_header,
      redirect_port_in_host_header,
      relaxed,
-     multipart_chunks
+     multipart_chunks,
+     stream_fun_server_close
     ].
 
 misc() ->
@@ -142,7 +144,6 @@ misc() ->
 %%--------------------------------------------------------------------
 
 init_per_suite(Config) ->
-    ct:timetrap({seconds, 30}),
     PrivDir = proplists:get_value(priv_dir, Config),
     DataDir = proplists:get_value(data_dir, Config),
     inets_test_lib:start_apps([inets]),
@@ -169,7 +170,6 @@ init_per_group(Group, Config0) when Group =:= sim_https; Group =:= https->
     catch crypto:stop(),
     try crypto:start() of
         ok ->
-            ct:timetrap({seconds, 30}),
             start_apps(Group),
             do_init_per_group(Group, Config0)
     catch
@@ -746,7 +746,7 @@ empty_body() ->
 empty_body(Config) when is_list(Config) ->
     URL = url(group_name(Config), "/empty.html", Config),
     {ok, {{_,200,_}, [_ | _], []}} =
-	httpc:request(get, {URL, []}, [{timeout, 500}], []).
+	httpc:request(get, {URL, []}, [], []).
 
 %%-------------------------------------------------------------------------
 
@@ -1179,6 +1179,22 @@ wait_for_whole_response(Config) when is_list(Config) ->
      ReqSeqNumServer ! shutdown.
 
 %%--------------------------------------------------------------------
+stream_fun_server_close() ->
+    [{doc, "Test that an error msg is received when using a receiver fun as stream target"}].
+stream_fun_server_close(Config) when is_list(Config) ->
+    Request  = {url(group_name(Config), "/delay_close.html", Config), []},
+    Self = self(),
+    Fun = fun(X) -> Self ! X end,
+    {ok, RequestId} = httpc:request(get, Request, [], [{sync, false}, {receiver, Fun}]),
+    receive
+        {RequestId, {error, Reason}} ->
+            ct:pal("Close ~p", [Reason]),
+            ok
+    after 13000 ->
+            ct:fail(did_not_receive_close)
+    end. 
+                                             
+%%--------------------------------------------------------------------
 %% Internal Functions ------------------------------------------------
 %%--------------------------------------------------------------------
 stream(ReceiverPid, Receiver, Config) ->
@@ -2030,6 +2046,9 @@ handle_uri(_,"/multipart_chunks.html",_,_,Socket,_) ->
     send(Socket, Head),
     send_multipart_chunks(Socket),
     http_chunk:encode_last();
+handle_uri(_,"/delay_close.html",_,_,Socket,_) ->
+    ct:sleep(10000),
+    close(Socket);
 handle_uri("HEAD",_,_,_,_,_) ->
     "HTTP/1.1 200 ok\r\n" ++
 	"Content-Length:0\r\n\r\n";
diff --git a/lib/inets/test/httpd_SUITE.erl b/lib/inets/test/httpd_SUITE.erl
index b4f0f2aa7d..0c649d9abf 100644
--- a/lib/inets/test/httpd_SUITE.erl
+++ b/lib/inets/test/httpd_SUITE.erl
@@ -74,6 +74,7 @@ all() ->
      {group, https_reload},
      {group, http_mime_types},
      {group, http_logging},
+     {group, http_post},
      mime_types_format
     ].
 
@@ -100,6 +101,7 @@ groups() ->
      {http_logging, [], [{group, logging}]},
      {http_reload, [], [{group, reload}]},
      {https_reload, [], [{group, reload}]},
+     {http_post, [], [{group, post}]},
      {http_mime_types, [], [alias_1_1, alias_1_0, alias_0_9]},
      {limit, [],  [max_clients_1_1, max_clients_1_0, max_clients_0_9]},  
      {custom, [],  [customize, add_default]},  
@@ -112,6 +114,7 @@ groups() ->
 		   disturbing_1_0, 
 		   disturbing_0_9
 		  ]},
+     {post, [], [chunked_post, chunked_chunked_encoded_post]},
      {basic_auth, [], [basic_auth_1_1, basic_auth_1_0, basic_auth_0_9]},
      {auth_api, [], [auth_api_1_1, auth_api_1_0, auth_api_0_9
 		    ]},
@@ -126,7 +129,7 @@ groups() ->
      {http_1_1, [],
       [host, chunked, expect, cgi, cgi_chunked_encoding_test,
        trace, range, if_modified_since, mod_esi_chunk_timeout,
-       esi_put] ++ http_head() ++ http_get() ++ load()},
+       esi_put, esi_post] ++ http_head() ++ http_get() ++ load()},
      {http_1_0, [], [host, cgi, trace] ++ http_head() ++ http_get() ++ load()},
      {http_0_9, [], http_head() ++ http_get() ++ load()}
     ].
@@ -152,6 +155,7 @@ http_get() ->
      ipv6
     ].
 
+
 load() ->
     [light, medium 
      %%,heavy
@@ -218,6 +222,7 @@ init_per_group(Group, Config0)  when  Group == http_basic;
 				      Group == http_auth_api_mnesia;
 				      Group == http_security;
 				      Group == http_reload;
+                                      Group == http_post;
                                       Group == http_mime_types
 				      ->
     ok = start_apps(Group),
@@ -275,6 +280,7 @@ end_per_group(Group, _Config)  when  Group == http_basic;
 				     Group == http_htaccess;
 				     Group == http_security;
 				     Group == http_reload;
+                                     Group == http_post;
                                      Group == http_mime_types
 				     ->
     inets:stop();
@@ -299,7 +305,7 @@ end_per_group(_, _) ->
 
 %%--------------------------------------------------------------------
 init_per_testcase(Case, Config) when Case == host; Case == trace ->
-    ct:timetrap({seconds, 20}),
+    ct:timetrap({seconds, 40}),
     Prop = proplists:get_value(tc_group_properties, Config),
     Name = proplists:get_value(name, Prop),
     Cb = case Name of
@@ -677,6 +683,51 @@ ipv6(Config) when is_list(Config) ->
      end.
 
 %%-------------------------------------------------------------------------
+chunked_post() ->
+    [{doc,"Test option max_client_body_chunk"}].
+chunked_post(Config) when is_list(Config) ->
+    ok = http_status("POST /cgi-bin/erl/httpd_example:post_chunked ",  
+                       {"Content-Length:833 \r\n",
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"
+                        "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"},
+                     [{http_version, "HTTP/1.1"} |Config], 
+                     [{statuscode, 200}]),
+    ok = http_status("POST /cgi-bin/erl/httpd_example:post_chunked ",  
+                     {"Content-Length:2 \r\n",
+                        "ZZ"
+                     },
+                     [{http_version, "HTTP/1.1"} |Config], 
+                     [{statuscode, 200}]).
+
+chunked_chunked_encoded_post() ->
+    [{doc,"Test option max_client_body_chunk with chunked client encoding"}].
+chunked_chunked_encoded_post(Config) when is_list(Config) ->
+    Chunk = http_chunk:encode("ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ"),
+    LastChunk = http_chunk:encode_last(),
+    Chunks = lists:duplicate(10000, Chunk),
+    ok = http_status("POST /cgi-bin/erl/httpd_example:post_chunked ",  
+                     {"Transfer-Encoding:chunked \r\n",
+                      [Chunks | LastChunk]},
+                     [{http_version, "HTTP/1.1"} | Config], 
+                     [{statuscode, 200}]).
+
+
+%%-------------------------------------------------------------------------
 htaccess_1_1(Config) when is_list(Config) -> 
     htaccess([{http_version, "HTTP/1.1"} | Config]).
 
@@ -881,7 +932,20 @@ esi_put() ->
 esi_put(Config) when is_list(Config) ->
     ok = http_status("PUT /cgi-bin/erl/httpd_example/put/123342234123 ",
 		     Config, [{statuscode, 200}]).
- 
+%%-------------------------------------------------------------------------
+esi_post() ->
+    [{doc, "Test mod_esi POST"}].
+
+esi_post(Config) when is_list(Config) ->
+    Chunk = "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ",
+    Data = lists:duplicate(10000, Chunk),
+    Length = lists:flatlength(Data),
+    ok = http_status("POST /cgi-bin/erl/httpd_example/post ",
+                     {"Content-Length:" ++ integer_to_list(Length) ++ "\r\n",
+                      Data},
+                     [{http_version, "HTTP/1.1"} |Config], 
+                     [{statuscode, 200}]).
+
 %%-------------------------------------------------------------------------
 mod_esi_chunk_timeout(Config) when is_list(Config) -> 
     ok = httpd_1_1:mod_esi_chunk_timeout(proplists:get_value(type, Config), 
@@ -1685,6 +1749,7 @@ start_apps(Group) when  Group == http_basic;
 			Group == http_security;
 			Group == http_logging;
 			Group == http_reload;
+                        Group == http_post;
                         Group == http_mime_types->
     inets_test_lib:start_apps([inets]).
 
@@ -1731,6 +1796,8 @@ server_config(https_basic, Config) ->
     basic_conf() ++ server_config(https, Config);
 server_config(http_reload, Config) ->
     [{keep_alive_timeout, 2}]  ++ server_config(http, Config);
+server_config(http_post, Config) ->
+    [{max_client_body_chunk, 10}]  ++ server_config(http, Config);
 server_config(https_reload, Config) ->
     [{keep_alive_timeout, 2}]  ++ server_config(https, Config);
 server_config(http_limit, Config) ->
diff --git a/lib/inets/test/inets_SUITE.erl b/lib/inets/test/inets_SUITE.erl
index 38b8229389..1abd96a228 100644
--- a/lib/inets/test/inets_SUITE.erl
+++ b/lib/inets/test/inets_SUITE.erl
@@ -213,7 +213,6 @@ start_httpd(Config) when is_list(Config) ->
     true = lists:member(Pid0, Pids0),
     [_|_] = inets:services_info(),	
     inets:stop(httpd, Pid0),
-    ct:sleep(500),
     Pids1 =  [ServicePid || {_, ServicePid} <- inets:services()],
     false = lists:member(Pid0, Pids1),
     {ok, Pid0b} =
@@ -222,7 +221,6 @@ start_httpd(Config) when is_list(Config) ->
     true = lists:member(Pid0b, Pids0b),
     [_|_] = inets:services_info(),
     inets:stop(httpd, Pid0b),
-    ct:sleep(500),
     Pids1 =  [ServicePid || {_, ServicePid} <- inets:services()], 
     false = lists:member(Pid0b, Pids1),
     {ok, Pid1} = 
diff --git a/lib/inets/test/uri_SUITE.erl b/lib/inets/test/uri_SUITE.erl
index 3e7799141c..f973296af6 100644
--- a/lib/inets/test/uri_SUITE.erl
+++ b/lib/inets/test/uri_SUITE.erl
@@ -277,8 +277,8 @@ encode_decode(Config) when is_list(Config) ->
     ?assertEqual("foo%20bar", http_uri:encode("foo bar")),
     ?assertEqual(<<"foo%20bar">>, http_uri:encode(<<"foo bar">>)),
 
-    ?assertEqual("foo bar", http_uri:decode("foo+bar")),
-    ?assertEqual(<<"foo bar">>, http_uri:decode(<<"foo+bar">>)),
+    ?assertEqual("foo+bar", http_uri:decode("foo+bar")),
+    ?assertEqual(<<"foo+bar">>, http_uri:decode(<<"foo+bar">>)),
     ?assertEqual("foo bar", http_uri:decode("foo%20bar")),
     ?assertEqual(<<"foo bar">>, http_uri:decode(<<"foo%20bar">>)),
     ?assertEqual("foo\r\n", http_uri:decode("foo%0D%0A")),
diff --git a/lib/inets/vsn.mk b/lib/inets/vsn.mk
index 96796f11c0..34b6902747 100644
--- a/lib/inets/vsn.mk
+++ b/lib/inets/vsn.mk
@@ -19,6 +19,6 @@
 # %CopyrightEnd%
 
 APPLICATION = inets
-INETS_VSN   = 6.4
+INETS_VSN   = 6.4.2
 PRE_VSN     =
 APP_VSN     = "$(APPLICATION)-$(INETS_VSN)$(PRE_VSN)"
diff --git a/lib/jinterface/doc/src/Makefile b/lib/jinterface/doc/src/Makefile
index 508c8e01b5..7eb0e20b4d 100644
--- a/lib/jinterface/doc/src/Makefile
+++ b/lib/jinterface/doc/src/Makefile
@@ -3,7 +3,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2000-2016. All Rights Reserved.
+# Copyright Ericsson AB 2000-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -43,10 +43,7 @@ XML_APP_FILES = ref_man.xml
 XML_REF3_FILES = jinterface.xml
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml \
-	part_notes_history.xml
-
+	part.xml
 XML_CHAPTER_FILES = \
 	notes.xml \
 	notes_history.xml \
@@ -55,13 +52,9 @@ XML_CHAPTER_FILES = \
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
-
-GIF_FILES = \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
+GIF_FILES =
 #------------------------------------------------------
 
 
@@ -92,7 +85,7 @@ JAVA_DOC_FILES = \
 	serialized-form.html \
 	package-list \
 	stylesheet.css \
-	help-doc.html 
+	help-doc.html
 
 INFO_FILE = ../../info
 JAVA_EXTRA_FILES = $(JAVA_DOC_FILES:%=$(HTMLDIR)/java/%)
@@ -110,17 +103,16 @@ JAVA_GEN_FILES = \
 HTML_FILES = \
 	$(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html)
 
-TOP_HTML_FILES = $(INDEX_TARGET) 
+TOP_HTML_FILES = $(INDEX_TARGET)
 
 INDEX_FILE = index.html
-INDEX_SRC = $(INDEX_FILE).src
 INDEX_TARGET = $(DOCDIR)/$(INDEX_FILE)
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -146,18 +138,15 @@ jdoc:$(JAVA_SRC_FILES)
 	(cd ../../java_src;$(JAVADOC) -sourcepath . -d $(JAVADOC_DEST) \
 		-windowtitle $(JAVADOC_TITLE) $(JAVADOC_PKGS))
 
-man: 
+man:
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-#$(INDEX_TARGET): $(INDEX_SRC) ../../vsn.mk
-#	sed -e 's;%VSN%;$(VSN);' $< > $@
-
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/jinterface/doc/src/fascicules.xml b/lib/jinterface/doc/src/fascicules.xml
deleted file mode 100644
index 4f04be0515..0000000000
--- a/lib/jinterface/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="yes">
-    User Guide
-  </fascicule>
-  <fascicule file="" href="java/index.html" entry="no">
-    Java API
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/jinterface/doc/src/index.html.src b/lib/jinterface/doc/src/index.html.src
deleted file mode 100644
index 9276c5f89a..0000000000
--- a/lib/jinterface/doc/src/index.html.src
+++ /dev/null
@@ -1,99 +0,0 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<!-- This file is obsolete -->
-<HTML>
-<!-- 
-    %CopyrightBegin%
-    
-    Copyright Ericsson AB 2000-2016. All Rights Reserved.
-    
-    Licensed under the Apache License, Version 2.0 (the "License");
-    you may not use this file except in compliance with the License.
-    You may obtain a copy of the License at
- 
-        http://www.apache.org/licenses/LICENSE-2.0
-
-    Unless required by applicable law or agreed to in writing, software
-    distributed under the License is distributed on an "AS IS" BASIS,
-    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-    See the License for the specific language governing permissions and
-    limitations under the License.
-    
-    %CopyrightEnd%
--->
-<HEAD>
-<TITLE>Jinterface %VSN%</TITLE>
-</HEAD>
-
-<BODY BGCOLOR="#FFFFFF">
-
-<CENTER>
-<A HREF="http://www.erlang.se/"><IMG  ALT="Erlang/OTP" BORDER=0 SRC="html/min_head.gif"></A><BR>
-
-<FONT SIZE="-1">
-[<A HREF="../../../doc/index.html">Up</A> |
-<A HREF="http://www.erlang.se/">Erlang/OTP</A>]
-</FONT><BR>
-
-<P><FONT SIZE="+3">Jinterface </FONT><BR>
-Version %VSN%
-</CENTER>
-
-<P><TABLE>
-<TR>
-<TD>
-</TD>
-
-<TD>
-<STRONG>Jinterface</STRONG> contains functions, 
-which help you integrate programs written in Java and Erlang.
-</TD>
-</TR>
-</TABLE>
-
-<P><CENTER>
-<TABLE CELLPADDING=15>
-<TR>
-
-
-<TD ALIGN=CENTER>
-<A HREF="html/part_frame.html">
-<IMG ALT="User Guide" BORDER=0 SRC="html/user_guide.gif"></A><BR>
-<FONT SIZE="-1">
-<A HREF="html/part_frame.html">User Guide</A>
-</FONT>
-</TD>
-
-
-<TD ALIGN=CENTER>
-<A HREF="html/index.html"><IMG ALT="Java API" BORDER=0 SRC="html/ref_man.gif"></A><BR>
-<FONT SIZE="-1">
-<A HREF="html/index.html">Java API</A>
-</FONT>
-</TD>
-
-
-
-<TD ALIGN=CENTER>
-<A HREF="html/part_notes_frame.html"><IMG ALT="Release Notes" BORDER=0 SRC="html/notes.gif"></A><BR>
-<FONT SIZE="-1">
-<A HREF="html/part_notes_frame.html">Release Notes</A>
-</FONT>
-</TD>
-
-</TR>
-</TABLE>
-</CENTER>
-
-<P><CENTER>
-<HR>
-<FONT SIZE="-1">
-Copyright &copy; 1991-2001
-<A HREF="http://www.erlang.se/">Ericsson Utvecklings AB</A>
-</FONT>
-</CENTER>
-</BODY>
-</HTML>
-
-
-
-
diff --git a/lib/jinterface/doc/src/notes.gif b/lib/jinterface/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/jinterface/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/jinterface/doc/src/part_notes.xml b/lib/jinterface/doc/src/part_notes.xml
deleted file mode 100644
index de6dd7d162..0000000000
--- a/lib/jinterface/doc/src/part_notes.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2000</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Jinterface Release Notes</title>
-    <prepared>Gordon Beaton</prepared>
-    <docno></docno>
-    <date>1999-10-25</date>
-    <rev>A</rev>
-  </header>
-  <description>
-    <p>The <em>Jinterface</em> application is a Java-Erlang
-      communication tool package.</p>
-    <p>For information about older versions, see 
-      <url href="part_notes_history_frame.html">Release Notes History</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/jinterface/doc/src/part_notes_history.xml b/lib/jinterface/doc/src/part_notes_history.xml
deleted file mode 100644
index 94bb996db5..0000000000
--- a/lib/jinterface/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2006</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Jinterface Release Notes History</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The <em>Jinterface</em> application is a Java-Erlang
-      communication tool package.</p>
-  </description>
-  <include file="notes_history"></include>
-</part>
-
diff --git a/lib/jinterface/doc/src/ref_man.gif b/lib/jinterface/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/jinterface/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/jinterface/doc/src/summary.html.src b/lib/jinterface/doc/src/summary.html.src
deleted file mode 100644
index beb3305d58..0000000000
--- a/lib/jinterface/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-Low level interface to Java. 
\ No newline at end of file
diff --git a/lib/jinterface/doc/src/user_guide.gif b/lib/jinterface/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/jinterface/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/jinterface/test/jinterface_SUITE.erl b/lib/jinterface/test/jinterface_SUITE.erl
index 73851f47e0..8c6a6368a9 100644
--- a/lib/jinterface/test/jinterface_SUITE.erl
+++ b/lib/jinterface/test/jinterface_SUITE.erl
@@ -176,11 +176,29 @@ init_per_suite(Config) when is_list(Config) ->
 	     {error,bad_name} -> false;
 	     P -> filelib:is_dir(P) end of
 	true ->
-	    jitu:init_all(Config);
+            case hostname_resolves() of
+                true ->
+                    jitu:init_all(Config);
+                Skip ->
+                    Skip
+            end;
 	false ->
 	    {skip,"No jinterface application"}
     end.
 
+%% Check if inet:gethostname() can be resolved by
+%% the native resolver. If it can, we know that
+%% jinterface name resolution works. If it cannot
+%% jinterface tests will fail.
+hostname_resolves() ->
+    {ok, HN} = inet:gethostname(),
+    case inet_gethost_native:gethostbyname(HN) of
+        {ok, _} ->
+            true;
+        _ ->
+            {skip, "Cannot resolve short hostname, add " ++ HN ++ " to /etc/hosts"}
+    end.
+
 end_per_suite(Config) when is_list(Config) ->
     jitu:finish_all(Config).
 
diff --git a/lib/kernel/doc/src/Makefile b/lib/kernel/doc/src/Makefile
index 8976a3b800..c9d23ac4c4 100644
--- a/lib/kernel/doc/src/Makefile
+++ b/lib/kernel/doc/src/Makefile
@@ -70,7 +70,7 @@ XML_REF4_FILES = app.xml config.xml
 
 XML_REF6_FILES = kernel_app.xml
 
-XML_PART_FILES = part_notes.xml part_notes_history.xml
+XML_PART_FILES =
 XML_CHAPTER_FILES = notes.xml notes_history.xml
 
 BOOK_FILES = book.xml
@@ -100,9 +100,9 @@ SPECS_FILES = $(XML_REF3_FILES:%.xml=$(SPECDIR)/specs_%.xml)
 TOP_SPECS_FILE = specs.xml
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 
 SPECS_ESRC = ../../src
 
@@ -125,7 +125,7 @@ html: gifs $(HTML_REF_MAN_FILE)
 man: $(MAN3_FILES) $(MAN4_FILES) $(MAN6_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
@@ -134,7 +134,7 @@ clean clean_docs:
 	rm -f $(MAN6DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
 	rm -f $(SPECDIR)/*
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 $(SPECDIR)/specs_erl_prim_loader_stub.xml:
 	escript $(SPECS_EXTRACTOR) $(SPECS_FLAGS) \
@@ -151,7 +151,7 @@ $(SPECDIR)/specs_zlib_stub.xml:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -169,4 +169,3 @@ release_docs_spec: docs
 	$(INSTALL_DATA) $(MAN6_FILES) "$(RELEASE_PATH)/man/man6"
 
 release_spec:
-
diff --git a/lib/kernel/doc/src/fascicules.xml b/lib/kernel/doc/src/fascicules.xml
deleted file mode 100644
index fadd37eefb..0000000000
--- a/lib/kernel/doc/src/fascicules.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/kernel/doc/src/file.xml b/lib/kernel/doc/src/file.xml
index b674b3ca93..2ab35b9b05 100644
--- a/lib/kernel/doc/src/file.xml
+++ b/lib/kernel/doc/src/file.xml
@@ -41,7 +41,7 @@
 
     <p>Regarding filename encoding, the Erlang VM can operate in
     two modes. The current mode can be queried using function
-    <seealso marker="#native_name_encoding"><c>native_name_encoding/0</c></seealso>.
+    <seealso marker="#native_name_encoding/0"><c>native_name_encoding/0</c></seealso>.
     It returns <c>latin1</c> or <c>utf8</c>.</p>
 
     <p>In <c>latin1</c> mode, the Erlang VM does not change the
@@ -59,7 +59,7 @@
     terminal supports UTF-8, otherwise <c>latin1</c>. The default can
     be overridden using <c>+fnl</c> (to force <c>latin1</c> mode)
     or <c>+fnu</c> (to force <c>utf8</c> mode) when starting
-    <seealso marker="erts:erl"><c>erts:erl</c></seealso>.</p>
+    <seealso marker="erts:erl"><c>erl</c></seealso>.</p>
 
     <p>On operating systems with transparent naming, files can be
     inconsistently named, for example, some files are encoded in UTF-8 while
@@ -81,6 +81,23 @@
 
     <p>See also section <seealso marker="stdlib:unicode_usage#notes-about-raw-filenames">Notes About Raw Filenames</seealso> in the STDLIB User's Guide.</p>
 
+    <note><p>
+      File operations used to accept filenames containing
+      null characters (integer value zero). This caused
+      the name to be truncated and in some cases arguments
+      to primitive operations to be mixed up. Filenames
+      containing null characters inside the filename
+      are now <em>rejected</em> and will cause primitive
+      file operations fail.
+    </p></note>
+    <warning><p>
+      Currently null characters at the end of the filename
+      will be accepted by primitive file operations. Such
+      filenames are however still documented as invalid. The
+      implementation will also change in the future and
+      reject such filenames.
+    </p></warning>
+
   </description>
 
   <datatypes>
@@ -96,9 +113,21 @@
     </datatype>
     <datatype>
       <name name="filename"/>
+      <desc>
+        <p>
+	  See also the documentation of the
+	  <seealso marker="#type-name_all"><c>name_all()</c></seealso> type.
+	</p>
+      </desc>
     </datatype>
     <datatype>
       <name name="filename_all"/>
+      <desc>
+        <p>
+	  See also the documentation of the
+	  <seealso marker="#type-name_all"><c>name_all()</c></seealso> type.
+	</p>
+      </desc>
     </datatype>
     <datatype>
       <name name="io_device"/>
@@ -112,21 +141,23 @@
       <name name="name"/>
       <desc>
         <p>If VM is in Unicode filename mode, <c>string()</c> and <c>char()</c>
-          are allowed to be &gt; 255.
+          are allowed to be &gt; 255. See also the documentation of the
+	  <seealso marker="#type-name_all"><c>name_all()</c></seealso> type.
         </p>
       </desc>
     </datatype>
     <datatype>
       <name name="name_all"/>
       <desc>
-        <p>If VM is in Unicode filename mode, <c>string()</c> and <c>char()</c>
+        <p>If VM is in Unicode filename mode, characters
           are allowed to be &gt; 255.
           <c><anno>RawFilename</anno></c> is a filename not subject to
           Unicode translation,
           meaning that it can contain characters not conforming to
           the Unicode encoding expected from the file system
           (that is, non-UTF-8 characters although the VM is started
-          in Unicode filename mode).
+          in Unicode filename mode). Null characters (integer value zero)
+	  are <em>not</em> allowed in filenames (not even at the end).
         </p>
       </desc>
     </datatype>
@@ -1825,7 +1856,7 @@ f.txt:  {person, "kalle", 25}.
         <p>The functions in the module <c>file</c> usually treat binaries
           as raw filenames, that is, they are passed "as is" even when the
 	  encoding of the binary does not agree with
-	  <seealso marker="#native_name_encoding"><c>native_name_encoding()</c></seealso>.
+	  <seealso marker="#native_name_encoding/0"><c>native_name_encoding()</c></seealso>.
           However, this function expects binaries to be encoded according to the
           value returned by <c>native_name_encoding()</c>.</p>
         <p>Typical error reasons are:</p>
diff --git a/lib/kernel/doc/src/inet_res.xml b/lib/kernel/doc/src/inet_res.xml
index 4ada4203c0..3454e3c6f9 100644
--- a/lib/kernel/doc/src/inet_res.xml
+++ b/lib/kernel/doc/src/inet_res.xml
@@ -130,7 +130,7 @@ dns_header() = DnsHeader
     inet_dns:header(DnsHeader) ->
         [ {id, integer()}
         | {qr, boolean()}
-        | {opcode, 'query' | iquery | status | integer()}
+        | {opcode, query | iquery | status | integer()}
         | {aa, boolean()}
         | {tc, boolean()}
         | {rd, boolean()}
diff --git a/lib/kernel/doc/src/notes.xml b/lib/kernel/doc/src/notes.xml
index 9cd03ffcad..a5316dd476 100644
--- a/lib/kernel/doc/src/notes.xml
+++ b/lib/kernel/doc/src/notes.xml
@@ -31,6 +31,50 @@
   </header>
   <p>This document describes the changes made to the Kernel application.</p>
 
+<section><title>Kernel 5.4</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Processes which did output after switching jobs (Ctrl+G)
+	    could be left forever stuck in the io request.</p>
+          <p>
+	    Own Id: OTP-14571 Aux Id: ERL-472 </p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+	    <p>Lock counting can now be fully toggled at runtime in
+	    the lock counting emulator (<c>-emu_type lcnt</c>).
+	    Everything is enabled by default to match the old
+	    behavior, but specific categories can be toggled at will
+	    with minimal runtime overhead when disabled. Refer to the
+	    documentation on <c>lcnt:rt_mask/1</c> for details.</p>
+          <p>
+	    Own Id: OTP-13170</p>
+        </item>
+        <item>
+	    <p><c>lcnt:collect</c> and <c>lcnt:clear</c> will no
+	    longer block all other threads in the runtime system.</p>
+          <p>
+	    Own Id: OTP-14412</p>
+        </item>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Kernel 5.3.1</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/kernel/doc/src/os.xml b/lib/kernel/doc/src/os.xml
index 0e9add4161..0a08e2c78a 100644
--- a/lib/kernel/doc/src/os.xml
+++ b/lib/kernel/doc/src/os.xml
@@ -36,8 +36,99 @@
       only run on a specific platform. On the other hand, with careful
       use, these functions can be of help in enabling a program to run on
       most platforms.</p>
+
+    <note>
+      <p>
+	File operations used to accept filenames containing
+	null characters (integer value zero). This caused
+	the name to be truncated and in some cases arguments
+	to primitive operations to be mixed up. Filenames
+	containing null characters inside the filename
+	are now <em>rejected</em> and will cause primitive
+	file operations to fail.
+      </p>
+      <p>
+	Also environment variable operations used to accept
+	names and values of environment variables containing
+	null characters (integer value zero). This caused
+	operations to silently produce erroneous results.
+	Environment variable names and values containing
+	null characters inside the name or value are now
+	<em>rejected</em> and will cause environment variable
+	operations to fail.
+      </p>
+    </note>
+    <warning>
+      <p>
+	Currently null characters at the end of filenames,
+	environment variable names and values will be accepted
+	by the primitive operations. Such filenames, environment
+	variable names and values are however still documented as
+	invalid. The implementation will also change in the
+	future and reject such filenames, environment variable
+	names and values.
+      </p>
+    </warning>
   </description>
 
+  <datatypes>
+    <datatype>
+      <name name="env_var_name"/>
+      <desc>
+        <p>A string containing valid characters on the specific
+	OS for environment variable names using
+	<seealso marker="file#native_name_encoding/0"><c>file:native_name_encoding()</c></seealso>
+	encoding. Note that specifically null characters (integer
+	value zero) and <c>$=</c> characters are not allowed.
+	However, note that not all invalid characters necessarily
+	will cause the primitiv operations to fail, but may instead
+	produce invalid results.
+	</p>
+      </desc>
+    </datatype>
+    <datatype>
+      <name name="env_var_value"/>
+      <desc>
+        <p>A string containing valid characters on the specific
+	OS for environment variable values using
+	<seealso marker="file#native_name_encoding/0"><c>file:native_name_encoding()</c></seealso>
+	encoding. Note that specifically null characters (integer
+	value zero) are not allowed. However, note that not all
+	invalid characters necessarily will cause the primitiv
+	operations to fail, but may instead produce invalid results.
+	</p>
+      </desc>
+    </datatype>
+    <datatype>
+      <name name="env_var_name_value"/>
+      <desc>
+        <p>
+	  Assuming that environment variables has been correctly
+	  set, a strings containing valid characters on the specific
+	  OS for environment variable names and values using
+	  <seealso marker="file#native_name_encoding/0"><c>file:native_name_encoding()</c></seealso>
+	  encoding. The first <c>$=</c> characters appearing in
+	  the string separates environment variable name (on the
+	  left) from environment variable value (on the right).
+	</p>
+      </desc>
+    </datatype>
+    <datatype>
+      <name name="command_input"/>
+      <desc>
+        <p>All characters needs to be valid characters on the
+	specific OS using
+	<seealso marker="file#native_name_encoding/0"><c>file:native_name_encoding()</c></seealso>
+	encoding. Note that specifically null characters (integer
+	value zero) are not allowed. However, note that not all
+	invalid characters not necessarily will cause
+	<seealso marker="#cmd/1"><c>os:cmd/1</c></seealso>
+	to fail, but may instead produce invalid results.
+	</p>
+      </desc>
+    </datatype>
+  </datatypes>
+ 
   <funcs>
     <func>
       <name name="cmd" arity="1"/>
@@ -49,6 +140,15 @@
           result as a string. This function is a replacement of
           the previous function <c>unix:cmd/1</c>; they are equivalent on a
           Unix platform.</p>
+	  <warning><p>Previous implementation used to allow all characters
+	  as long as they were integer values greater than or equal to zero.
+	  This sometimes lead to unwanted results since null characters
+	  (integer value zero) often are interpreted as string termination.
+	  Current implementation still accepts null characters at the end
+	  of <c><anno>Command</anno></c> even though the documentation
+	  states that no null characters are allowed. This will however
+	  be changed in the future so that no null characters at all will
+	  be accepted.</p></warning>
         <p><em>Examples:</em></p>
         <code type="none">
 LsOut = os:cmd("ls"), % on unix platform
@@ -152,6 +252,15 @@ DirOut = os:cmd("dir"), % on Win32 platform</code>
 	<p>On Unix platforms, the environment is set using UTF-8 encoding
 	  if Unicode filename translation is in effect. On Windows, the
 	  environment is set using wide character interfaces.</p>
+	  <note>
+	    <p>
+	      <c><anno>VarName</anno></c> is not allowed to contain
+	      an <c>$=</c> character. Previous implementations used
+	      to just let the <c>$=</c> character through which
+	      silently caused erroneous results. Current implementation
+	      will instead throw a <c>badarg</c> exception.
+	    </p>
+	  </note>
       </desc>
     </func>
 
diff --git a/lib/kernel/doc/src/part_notes.xml b/lib/kernel/doc/src/part_notes.xml
deleted file mode 100644
index 5e849039ee..0000000000
--- a/lib/kernel/doc/src/part_notes.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Kernel Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The <em>Kernel</em> application has all the code necessary to run
-      the Erlang runtime system itself; File servers and code servers
-      etc.</p>
-    <p>For information about older versions, see
-      <url href="part_notes_history_frame.html">Release Notes History</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/kernel/doc/src/part_notes_history.xml b/lib/kernel/doc/src/part_notes_history.xml
deleted file mode 100644
index 0cf7b793da..0000000000
--- a/lib/kernel/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2006</year>
-      <year>2016</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
- 
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>Kernel Release Notes History</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The <em>Kernel</em> application has all the code necessary to run
-      the Erlang runtime system itself; File servers and code servers
-      etc.</p>
-  </description>
-  <include file="notes_history"></include>
-</part>
-
diff --git a/lib/kernel/doc/src/user_guide.gif b/lib/kernel/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/kernel/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/kernel/examples/Makefile b/lib/kernel/examples/Makefile
index 26ec58f571..f86e662838 100644
--- a/lib/kernel/examples/Makefile
+++ b/lib/kernel/examples/Makefile
@@ -45,7 +45,7 @@ RELSYSDIR = $(RELEASE_PATH)/lib/kernel-$(KERNEL_VSN)/examples
 # Pack and install the complete directory structure from 
 # here (CWD) and down, for all examples.
 
-EXAMPLES  = uds_dist
+EXAMPLES  = uds_dist gen_tcp_dist
 
 release_spec:
 	$(INSTALL_DIR) "$(RELSYSDIR)"
diff --git a/lib/kernel/examples/gen_tcp_dist/Makefile b/lib/kernel/examples/gen_tcp_dist/Makefile
new file mode 100644
index 0000000000..65513a1729
--- /dev/null
+++ b/lib/kernel/examples/gen_tcp_dist/Makefile
@@ -0,0 +1,20 @@
+RM=rm -f
+CP=cp
+EBIN=ebin
+ERLC=erlc
+# Works if building in open source source tree
+KERNEL_INCLUDE=$(ERL_TOP)/lib/kernel/include
+ERLCFLAGS+= -W -I$(KERNEL_INCLUDE)
+
+MODULES=gen_tcp_dist
+
+TARGET_FILES=$(MODULES:%=$(EBIN)/%.beam)
+
+opt: $(TARGET_FILES)
+
+$(EBIN)/%.beam: src/%.erl
+	$(ERLC) $(ERLCFLAGS) -o$(EBIN) $<
+
+clean:
+	$(RM) $(TARGET_FILES)
+
diff --git a/lib/kernel/examples/gen_tcp_dist/ebin/.gitignore b/lib/kernel/examples/gen_tcp_dist/ebin/.gitignore
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/lib/kernel/examples/gen_tcp_dist/ebin/.gitignore
diff --git a/lib/kernel/examples/gen_tcp_dist/src/gen_tcp_dist.erl b/lib/kernel/examples/gen_tcp_dist/src/gen_tcp_dist.erl
new file mode 100644
index 0000000000..98554ed805
--- /dev/null
+++ b/lib/kernel/examples/gen_tcp_dist/src/gen_tcp_dist.erl
@@ -0,0 +1,781 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2017. All Rights Reserved.
+%% 
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%% 
+%% %CopyrightEnd%
+%%
+-module(gen_tcp_dist).
+
+%%
+%% This is an example of how to plug in an arbitrary distribution
+%% carrier for Erlang using distribution processes.
+%%
+%% This example uses gen_tcp for transportation of data, but
+%% you can use whatever underlying protocol you want as long
+%% as your implementation reliably delivers data chunks to the
+%% receiving VM in the order they were sent from the sending
+%% VM.
+%%
+%% This code is a rewrite of the lib/kernel/src/inet_tcp_dist.erl
+%% distribution impementation for TCP used by default. That
+%% implementation use distribution ports instead of distribution
+%% processes and is more efficient compared to this implementation.
+%% This since this implementation more or less gets the
+%% distribution processes in between the VM and the ports without
+%% any gain specific gain.
+%%
+
+-export([listen/1, accept/1, accept_connection/5,
+	 setup/5, close/1, select/1, is_node_name/1]).
+
+%% Optional
+-export([setopts/2, getopts/2]).
+
+%% internal exports
+
+-export([dist_cntrlr_setup/1, dist_cntrlr_input_setup/3,
+         dist_cntrlr_tick_handler/1]).
+
+-export([accept_loop/2,do_accept/6,do_setup/6]).
+
+-import(error_logger,[error_msg/2]).
+
+-include("net_address.hrl").
+
+-include("dist.hrl").
+-include("dist_util.hrl").
+
+%% ------------------------------------------------------------
+%%  Select this protocol based on node name
+%%  select(Node) => Bool
+%% ------------------------------------------------------------
+
+select(Node) ->
+    case split_node(atom_to_list(Node), $@, []) of
+	[_, Host] ->
+	    case inet:getaddr(Host, inet) of
+                {ok,_} -> true;
+                _ -> false
+            end;
+	_ -> false
+    end.
+
+%% ------------------------------------------------------------
+%% Create the listen socket, i.e. the port that this erlang
+%% node is accessible through.
+%% ------------------------------------------------------------
+
+listen(Name) ->
+    case do_listen([binary, {active, false}, {packet,2}, {reuseaddr, true}]) of
+	{ok, Socket} ->
+	    TcpAddress = get_tcp_address(Socket),
+	    {_,Port} = TcpAddress#net_address.address,
+	    ErlEpmd = net_kernel:epmd_module(),
+	    case ErlEpmd:register_node(Name, Port) of
+		{ok, Creation} ->
+		    {ok, {Socket, TcpAddress, Creation}};
+		Error ->
+		    Error
+	    end;
+	Error ->
+	    Error
+    end.
+
+do_listen(Options) ->
+    {First,Last} = case application:get_env(kernel,inet_dist_listen_min) of
+		       {ok,N} when is_integer(N) ->
+			   case application:get_env(kernel,
+						    inet_dist_listen_max) of
+			       {ok,M} when is_integer(M) ->
+				   {N,M};
+			       _ ->
+				   {N,N}
+			   end;
+		       _ ->
+			   {0,0}
+		   end,
+    do_listen(First, Last, listen_options([{backlog,128}|Options])).
+
+do_listen(First,Last,_) when First > Last ->
+    {error,eaddrinuse};
+do_listen(First,Last,Options) ->
+    case gen_tcp:listen(First, Options) of
+	{error, eaddrinuse} ->
+	    do_listen(First+1,Last,Options);
+	Other ->
+	    Other
+    end.
+
+listen_options(Opts0) ->
+    Opts1 =
+	case application:get_env(kernel, inet_dist_use_interface) of
+	    {ok, Ip} ->
+		[{ip, Ip} | Opts0];
+	    _ ->
+		Opts0
+	end,
+    case application:get_env(kernel, inet_dist_listen_options) of
+	{ok,ListenOpts} ->
+	    ListenOpts ++ Opts1;
+	_ ->
+	    Opts1
+    end.
+
+
+%% ------------------------------------------------------------
+%% Accepts new connection attempts from other Erlang nodes.
+%% ------------------------------------------------------------
+
+accept(Listen) ->
+    spawn_opt(?MODULE, accept_loop, [self(), Listen], [link, {priority, max}]).
+
+accept_loop(Kernel, Listen) ->
+    ?trace("~p~n",[{?MODULE, accept_loop, self()}]),
+    case gen_tcp:accept(Listen) of
+	{ok, Socket} ->
+            DistCtrl = spawn_dist_cntrlr(Socket), 
+            ?trace("~p~n",[{?MODULE, accept_loop, accepted, Socket, DistCtrl, self()}]),
+	    flush_controller(DistCtrl, Socket),
+	    gen_tcp:controlling_process(Socket, DistCtrl),
+	    flush_controller(DistCtrl, Socket),
+	    Kernel ! {accept,self(),DistCtrl,inet,tcp},
+            receive
+                {Kernel, controller, Pid} ->
+                    call_ctrlr(DistCtrl, {supervisor, Pid}),
+                    Pid ! {self(), controller};
+                {Kernel, unsupported_protocol} ->
+                    exit(unsupported_protocol)
+            end,
+	    accept_loop(Kernel, Listen);
+	Error ->
+	    exit(Error)
+    end.
+
+flush_controller(Pid, Socket) ->
+    receive
+	{tcp, Socket, Data} ->
+	    Pid ! {tcp, Socket, Data},
+	    flush_controller(Pid, Socket);
+	{tcp_closed, Socket} ->
+	    Pid ! {tcp_closed, Socket},
+	    flush_controller(Pid, Socket)
+    after 0 ->
+	    ok
+    end.
+
+%% ------------------------------------------------------------
+%% Accepts a new connection attempt from another Erlang node.
+%% Performs the handshake with the other side.
+%% ------------------------------------------------------------
+
+accept_connection(AcceptPid, DistCtrl, MyNode, Allowed, SetupTime) ->
+    spawn_opt(?MODULE, do_accept,
+	      [self(), AcceptPid, DistCtrl, MyNode, Allowed, SetupTime],
+	      [link, {priority, max}]).
+
+do_accept(Kernel, AcceptPid, DistCtrl, MyNode, Allowed, SetupTime) ->
+    ?trace("~p~n",[{?MODULE, do_accept, self(), MyNode}]),
+    receive
+	{AcceptPid, controller} ->
+	    Timer = dist_util:start_timer(SetupTime),
+	    case check_ip(DistCtrl) of
+		true ->
+                    HSData0 = hs_data_common(DistCtrl),
+		    HSData = HSData0#hs_data{kernel_pid = Kernel,
+                                             this_node = MyNode,
+                                             socket = DistCtrl,
+                                             timer = Timer,
+                                             this_flags = 0,
+                                             allowed = Allowed},
+		    dist_util:handshake_other_started(HSData);
+		{false,IP} ->
+		    error_msg("** Connection attempt from "
+			      "disallowed IP ~w ** ~n", [IP]),
+		    ?shutdown(no_node)
+	    end
+    end.
+
+%% we may not always want the nodelay behaviour
+%% for performance reasons
+
+nodelay() ->
+    case application:get_env(kernel, dist_nodelay) of
+	undefined ->
+	    {nodelay, true};
+	{ok, true} ->
+	    {nodelay, true};
+	{ok, false} ->
+	    {nodelay, false};
+	_ ->
+	    {nodelay, true}
+    end.
+
+%% ------------------------------------------------------------
+%% Setup a new connection to another Erlang node.
+%% Performs the handshake with the other side.
+%% ------------------------------------------------------------
+
+setup(Node, Type, MyNode, LongOrShortNames,SetupTime) ->
+    spawn_opt(?MODULE, do_setup, 
+	      [self(), Node, Type, MyNode, LongOrShortNames, SetupTime],
+	      [link, {priority, max}]).
+
+do_setup(Kernel, Node, Type, MyNode, LongOrShortNames, SetupTime) ->
+    ?trace("~p~n",[{?MODULE, do_setup, self(), Node}]),
+    [Name, Address] = splitnode(Node, LongOrShortNames),
+    case inet:getaddr(Address, inet) of
+	{ok, Ip} ->
+	    Timer = dist_util:start_timer(SetupTime),
+	    ErlEpmd = net_kernel:epmd_module(),
+	    case ErlEpmd:port_please(Name, Ip) of
+		{port, TcpPort, Version} ->
+		    ?trace("port_please(~p) -> version ~p~n", 
+			   [Node,Version]),
+		    dist_util:reset_timer(Timer),
+		    case
+			gen_tcp:connect(
+			  Ip, TcpPort,
+			  connect_options([binary, {active, false}, {packet, 2}]))
+		    of
+			{ok, Socket} ->
+                            DistCtrl = spawn_dist_cntrlr(Socket), 
+                            call_ctrlr(DistCtrl, {supervisor, self()}),
+                            flush_controller(DistCtrl, Socket),
+                            gen_tcp:controlling_process(Socket, DistCtrl),
+                            flush_controller(DistCtrl, Socket),
+                            HSData0 = hs_data_common(DistCtrl),
+			    HSData = HSData0#hs_data{kernel_pid = Kernel,
+                                                     other_node = Node,
+                                                     this_node = MyNode,
+                                                     socket = DistCtrl,
+                                                     timer = Timer,
+                                                     this_flags = 0,
+                                                     other_version = Version,
+                                                     request_type = Type},
+			    dist_util:handshake_we_started(HSData);
+			_ ->
+			    %% Other Node may have closed since 
+			    %% port_please !
+			    ?trace("other node (~p) "
+				   "closed since port_please.~n", 
+				   [Node]),
+			    ?shutdown(Node)
+		    end;
+		_ ->
+		    ?trace("port_please (~p) "
+			   "failed.~n", [Node]),
+		    ?shutdown(Node)
+	    end;
+	_Other ->
+	    ?trace("inet_getaddr(~p) "
+		   "failed (~p).~n", [Node,_Other]),
+	    ?shutdown(Node)
+    end.
+
+connect_options(Opts) ->
+    case application:get_env(kernel, inet_dist_connect_options) of
+	{ok,ConnectOpts} ->
+	    ConnectOpts ++ Opts;
+	_ ->
+	    Opts
+    end.
+
+%%
+%% Close a socket.
+%%
+close(Listen) ->
+    gen_tcp:close(Listen).
+
+
+%% If Node is illegal terminate the connection setup!!
+splitnode(Node, LongOrShortNames) ->
+    case split_node(atom_to_list(Node), $@, []) of
+	[Name|Tail] when Tail =/= [] ->
+	    Host = lists:append(Tail),
+	    case split_node(Host, $., []) of
+		[_] when LongOrShortNames =:= longnames ->
+                    case inet:parse_address(Host) of
+                        {ok, _} ->
+                            [Name, Host];
+                        _ ->
+                            error_msg("** System running to use "
+                                      "fully qualified "
+                                      "hostnames **~n"
+                                      "** Hostname ~ts is illegal **~n",
+                                      [Host]),
+                            ?shutdown(Node)
+                    end;
+		L when length(L) > 1, LongOrShortNames =:= shortnames ->
+		    error_msg("** System NOT running to use fully qualified "
+			      "hostnames **~n"
+			      "** Hostname ~ts is illegal **~n",
+			      [Host]),
+		    ?shutdown(Node);
+		_ ->
+		    [Name, Host]
+	    end;
+	[_] ->
+	    error_msg("** Nodename ~p illegal, no '@' character **~n",
+		      [Node]),
+	    ?shutdown(Node);
+	_ ->
+	    error_msg("** Nodename ~p illegal **~n", [Node]),
+	    ?shutdown(Node)
+    end.
+
+split_node([Chr|T], Chr, Ack) -> [lists:reverse(Ack)|split_node(T, Chr, [])];
+split_node([H|T], Chr, Ack)   -> split_node(T, Chr, [H|Ack]);
+split_node([], _, Ack)        -> [lists:reverse(Ack)].
+
+%% ------------------------------------------------------------
+%% Fetch local information about a Socket.
+%% ------------------------------------------------------------
+get_tcp_address(Socket) ->
+    {ok, Address} = inet:sockname(Socket),
+    {ok, Host} = inet:gethostname(),
+    #net_address {
+		  address = Address,
+		  host = Host,
+		  protocol = tcp,
+		  family = inet
+		 }.
+
+%% ------------------------------------------------------------
+%% Do only accept new connection attempts from nodes at our
+%% own LAN, if the check_ip environment parameter is true.
+%% ------------------------------------------------------------
+check_ip(DistCtrl) ->
+    case application:get_env(check_ip) of
+	{ok, true} ->
+	    case get_ifs(DistCtrl) of
+		{ok, IFs, IP} ->
+		    check_ip(IFs, IP);
+		_ ->
+		    ?shutdown(no_node)
+	    end;
+	_ ->
+	    true
+    end.
+
+get_ifs(DistCtrl) ->
+    Socket = call_ctrlr(DistCtrl, socket),
+    case inet:peername(Socket) of
+	{ok, {IP, _}} ->
+	    case inet:getif(Socket) of
+		{ok, IFs} -> {ok, IFs, IP};
+		Error     -> Error
+	    end;
+	Error ->
+	    Error
+    end.
+
+check_ip([{OwnIP, _, Netmask}|IFs], PeerIP) ->
+    case {inet_tcp:mask(Netmask, PeerIP), inet_tcp:mask(Netmask, OwnIP)} of
+	{M, M} -> true;
+	_      -> check_ip(IFs, PeerIP)
+    end;
+check_ip([], PeerIP) ->
+    {false, PeerIP}.
+    
+is_node_name(Node) when is_atom(Node) ->
+    case split_node(atom_to_list(Node), $@, []) of
+	[_, _Host] -> true;
+	_ -> false
+    end;
+is_node_name(_Node) ->
+    false.
+
+hs_data_common(DistCtrl) ->
+    TickHandler = call_ctrlr(DistCtrl, tick_handler),
+    Socket = call_ctrlr(DistCtrl, socket),
+    #hs_data{f_send = send_fun(),
+             f_recv = recv_fun(),
+             f_setopts_pre_nodeup = setopts_pre_nodeup_fun(),
+             f_setopts_post_nodeup = setopts_post_nodeup_fun(),
+             f_getll = getll_fun(),
+             f_handshake_complete = handshake_complete_fun(),
+             f_address = address_fun(),
+             mf_setopts = setopts_fun(DistCtrl, Socket),
+             mf_getopts = getopts_fun(DistCtrl, Socket),
+             mf_getstat = getstat_fun(DistCtrl, Socket),
+             mf_tick = tick_fun(DistCtrl, TickHandler)}.
+
+%%% ------------------------------------------------------------
+%%% Distribution controller processes
+%%% ------------------------------------------------------------
+
+%%
+%% There will be five parties working together when the
+%% connection is up:
+%% - The gen_tcp socket. Providing a tcp/ip connection
+%%   to the other node.
+%% - The output handler. It will dispatch all outgoing
+%%   traffic from the VM to the gen_tcp socket. This
+%%   process is registered as distribution controller
+%%   for this channel with the VM.
+%% - The input handler. It will dispatch all incoming
+%%   traffic from the gen_tcp socket to the VM. This
+%%   process is also the socket owner and receives
+%%   incoming traffic using active-N.
+%% - The tick handler. Dispatches asynchronous tick
+%%   requests to the socket. It executes on max priority
+%%   since it is important to get ticks through to the
+%%   other end.
+%% - The channel supervisor (provided by dist_util). It
+%%   monitors traffic. Issue tick requests to the tick
+%%   handler when no outgoing traffic is seen and bring
+%%   the connection down if no incoming traffic is seen.
+%%   This process also executes on max priority.
+%%
+%%   These parties are linked togheter so should one
+%%   of them fail, all of them are terminated and the
+%%   connection is taken down.
+%%
+
+%% In order to avoid issues with lingering signal binaries
+%% we enable off-heap message queue data as well as fullsweep
+%% after 0. The fullsweeps will be cheap since we have more
+%% or less no live data.
+-define(DIST_CNTRL_COMMON_SPAWN_OPTS,
+        [{message_queue_data, off_heap},
+         {fullsweep_after, 0}]).
+
+tick_fun(DistCtrl, TickHandler) ->
+    fun (Ctrl) when Ctrl == DistCtrl ->
+            TickHandler ! tick
+    end.
+
+getstat_fun(DistCtrl, Socket) ->
+    fun (Ctrl) when Ctrl == DistCtrl ->
+            case inet:getstat(Socket, [recv_cnt, send_cnt, send_pend]) of
+                {ok, Stat} ->
+                    split_stat(Stat,0,0,0);
+                Error ->
+                    Error
+            end
+    end.
+
+split_stat([{recv_cnt, R}|Stat], _, W, P) ->
+    split_stat(Stat, R, W, P);
+split_stat([{send_cnt, W}|Stat], R, _, P) ->
+    split_stat(Stat, R, W, P);
+split_stat([{send_pend, P}|Stat], R, W, _) ->
+    split_stat(Stat, R, W, P);
+split_stat([], R, W, P) ->
+    {ok, R, W, P}.
+
+setopts_fun(DistCtrl, Socket) ->
+    fun (Ctrl, Opts) when Ctrl == DistCtrl ->
+            setopts(Socket, Opts)
+    end.
+
+getopts_fun(DistCtrl, Socket) ->
+    fun (Ctrl, Opts) when Ctrl == DistCtrl ->
+            getopts(Socket, Opts)
+    end.
+
+setopts(S, Opts) ->
+    case [Opt || {K,_}=Opt <- Opts,
+		 K =:= active orelse K =:= deliver orelse K =:= packet] of
+	[] -> inet:setopts(S,Opts);
+	Opts1 -> {error, {badopts,Opts1}}
+    end.
+
+getopts(S, Opts) ->
+    inet:getopts(S, Opts).
+
+send_fun() ->
+    fun (Ctrlr, Packet) ->
+            call_ctrlr(Ctrlr, {send, Packet})
+    end.
+
+recv_fun() ->
+    fun (Ctrlr, Length, Timeout) ->
+            case call_ctrlr(Ctrlr, {recv, Length, Timeout}) of
+                {ok, Bin} when is_binary(Bin) ->
+                    {ok, binary_to_list(Bin)};
+                Other ->
+                    Other
+            end
+    end.
+
+getll_fun() ->
+    fun (Ctrlr) ->
+            call_ctrlr(Ctrlr, getll)
+    end.
+
+address_fun() ->
+    fun (Ctrlr, Node) ->
+            case call_ctrlr(Ctrlr, {address, Node}) of
+                {error, no_node} -> %% No '@' or more than one '@' in node name.
+		    ?shutdown(no_node);
+                Res ->
+                    Res
+            end
+    end.
+
+setopts_pre_nodeup_fun() ->
+    fun (Ctrlr) ->
+            call_ctrlr(Ctrlr, pre_nodeup)
+    end.
+
+setopts_post_nodeup_fun() ->
+    fun (Ctrlr) ->
+            call_ctrlr(Ctrlr, post_nodeup)
+    end.
+
+handshake_complete_fun() ->
+    fun (Ctrlr, Node, DHandle) ->
+            call_ctrlr(Ctrlr, {handshake_complete, Node, DHandle})
+    end.
+
+call_ctrlr(Ctrlr, Msg) ->
+    Ref = erlang:monitor(process, Ctrlr),
+    Ctrlr ! {Ref, self(), Msg},
+    receive
+        {Ref, Res} ->
+            erlang:demonitor(Ref, [flush]),
+            Res;
+        {'DOWN', Ref, process, Ctrlr, Reason} ->
+            exit({dist_controller_exit, Reason})
+    end.
+
+%%
+%% The tick handler process writes a tick to the
+%% socket when it receives a 'tick' message from
+%% the connection supervisor.
+%%
+%% We are not allowed to block the connection
+%% superviser when writing a tick and we also want
+%% the tick to go through even during a heavily
+%% loaded system. gen_tcp does not have a
+%% non-blocking send operation exposed in its API
+%% and we don't want to run the distribution
+%% controller under high priority. Therefore this
+%% sparate process with max prio that dispatches
+%% ticks.
+%%
+dist_cntrlr_tick_handler(Socket) ->
+    receive
+        tick ->
+            %% May block due to busy port...
+            sock_send(Socket, "");
+        _ ->
+            ok
+    end,
+    dist_cntrlr_tick_handler(Socket).
+
+spawn_dist_cntrlr(Socket) ->
+    spawn_opt(?MODULE, dist_cntrlr_setup, [Socket],
+              [{priority, max}] ++ ?DIST_CNTRL_COMMON_SPAWN_OPTS).
+
+dist_cntrlr_setup(Socket) ->
+    TickHandler = spawn_opt(?MODULE, dist_cntrlr_tick_handler,
+                            [Socket], 
+                            [link, {priority, max}] 
+                            ++ ?DIST_CNTRL_COMMON_SPAWN_OPTS),
+    dist_cntrlr_setup_loop(Socket, TickHandler, undefined).
+
+%%
+%% During the handshake phase we loop in dist_cntrlr_setup().
+%% When the connection is up we spawn an input handler and
+%% continue as output handler.
+%%
+dist_cntrlr_setup_loop(Socket, TickHandler, Sup) ->
+    receive
+        {tcp_closed, Socket} ->
+            exit(connection_closed);
+
+        {Ref, From, {supervisor, Pid}} ->
+            Res = link(Pid),
+            From ! {Ref, Res},
+            dist_cntrlr_setup_loop(Socket, TickHandler, Pid);
+
+        {Ref, From, tick_handler} ->
+            From ! {Ref, TickHandler},
+            dist_cntrlr_setup_loop(Socket, TickHandler, Sup);
+
+        {Ref, From, socket} ->
+            From ! {Ref, Socket},
+            dist_cntrlr_setup_loop(Socket, TickHandler, Sup);
+
+        {Ref, From, {send, Packet}} ->
+            Res = gen_tcp:send(Socket, Packet),
+            From ! {Ref, Res},
+            dist_cntrlr_setup_loop(Socket, TickHandler, Sup);
+
+        {Ref, From, {recv, Length, Timeout}} ->
+            Res = gen_tcp:recv(Socket, Length, Timeout),
+            From ! {Ref, Res},
+            dist_cntrlr_setup_loop(Socket, TickHandler, Sup);
+
+        {Ref, From, getll} ->
+            From ! {Ref, {ok, self()}},
+            dist_cntrlr_setup_loop(Socket, TickHandler, Sup);
+
+        {Ref, From, {address, Node}} ->
+            Res = case inet:peername(Socket) of
+                      {ok, Address} ->
+                          case split_node(atom_to_list(Node), $@, []) of
+                              [_,Host] ->
+                                  #net_address{address=Address,host=Host,
+                                               protocol=tcp, family=inet};
+                              _ ->
+                                  {error, no_node}
+                          end
+                  end,
+            From ! {Ref, Res},
+            dist_cntrlr_setup_loop(Socket, TickHandler, Sup);
+
+        {Ref, From, pre_nodeup} ->
+            Res = inet:setopts(Socket, 
+                               [{active, false},
+                                {packet, 4},
+                                nodelay()]),
+            From ! {Ref, Res},
+            dist_cntrlr_setup_loop(Socket, TickHandler, Sup);
+
+        {Ref, From, post_nodeup} ->
+            Res = inet:setopts(Socket,
+                               [{active, false},
+                                {packet, 4},
+                                nodelay()]),
+            From ! {Ref, Res},
+            dist_cntrlr_setup_loop(Socket, TickHandler, Sup);
+
+        {Ref, From, {handshake_complete, _Node, DHandle}} ->
+            From ! {Ref, ok},
+            %% Handshake complete! Begin dispatching traffic...
+
+            %% We use separate process for dispatching input. This
+            %% is not necessary, but it enables parallel execution
+            %% of independent work loads at the same time as it
+            %% simplifies the the implementation...
+            InputHandler = spawn_opt(?MODULE, dist_cntrlr_input_setup,
+                                     [DHandle, Socket, Sup],
+                                     [link] ++ ?DIST_CNTRL_COMMON_SPAWN_OPTS),
+
+	    flush_controller(InputHandler, Socket),
+	    gen_tcp:controlling_process(Socket, InputHandler),
+	    flush_controller(InputHandler, Socket),
+
+            ok = erlang:dist_ctrl_input_handler(DHandle, InputHandler),
+
+            InputHandler ! DHandle,
+
+            %% From now on we execute on normal priority
+            process_flag(priority, normal),
+            erlang:dist_ctrl_get_data_notification(DHandle),
+            dist_cntrlr_output_loop(DHandle, Socket)
+    end.
+
+%% We use active 10 for good throughput while still
+%% maintaining back-pressure if the input controller
+%% isn't able to handle all incoming messages...
+-define(ACTIVE_INPUT, 10).
+
+dist_cntrlr_input_setup(DHandle, Socket, Sup) ->
+    link(Sup),
+    %% Ensure we don't try to put data before registerd
+    %% as input handler...
+    receive
+        DHandle ->
+            dist_cntrlr_input_loop(DHandle, Socket, 0)
+    end.
+
+dist_cntrlr_input_loop(DHandle, Socket, N) when N =< ?ACTIVE_INPUT/2 ->
+    inet:setopts(Socket, [{active, ?ACTIVE_INPUT - N}]),
+    dist_cntrlr_input_loop(DHandle, Socket, ?ACTIVE_INPUT);
+dist_cntrlr_input_loop(DHandle, Socket, N) ->
+    receive
+        {tcp_closed, Socket} ->
+            %% Connection to remote node terminated...
+            exit(connection_closed);
+
+        {tcp, Socket, Data} ->
+            %% Incoming data from remote node...
+            try erlang:dist_ctrl_put_data(DHandle, Data)
+            catch _ : _ -> death_row()
+            end,
+            dist_cntrlr_input_loop(DHandle, Socket, N-1);
+
+        _ ->
+            %% Ignore...
+            dist_cntrlr_input_loop(DHandle, Socket, N)
+    end.
+
+dist_cntrlr_send_data(DHandle, Socket) ->
+    case erlang:dist_ctrl_get_data(DHandle) of
+        none ->
+            erlang:dist_ctrl_get_data_notification(DHandle);
+        Data ->
+            sock_send(Socket, Data),
+            dist_cntrlr_send_data(DHandle, Socket)
+    end.
+
+
+dist_cntrlr_output_loop(DHandle, Socket) ->
+    receive
+        dist_data ->
+            %% Outgoing data from this node...
+            try dist_cntrlr_send_data(DHandle, Socket)
+            catch _ : _ -> death_row()
+            end,
+            dist_cntrlr_output_loop(DHandle, Socket);
+
+        {send, From, Ref, Data} ->
+            %% This is for testing only!
+            %%
+            %% Needed by some OTP distribution
+            %% test suites...
+            sock_send(Socket, Data),
+            From ! {Ref, ok},
+            dist_cntrlr_output_loop(DHandle, Socket);
+
+        _ ->
+            %% Drop garbage message...
+            dist_cntrlr_output_loop(DHandle, Socket)
+
+    end.
+
+sock_send(Socket, Data) ->
+    try gen_tcp:send(Socket, Data) of
+        ok -> ok;
+        {error, Reason} -> death_row({send_error, Reason})
+    catch
+        Type : Reason -> death_row({send_error, {Type, Reason}})
+    end.
+
+death_row() ->
+    death_row(connection_closed).
+
+death_row(normal) ->
+    %% We do not want to exit with normal
+    %% exit reason since it wont bring down
+    %% linked processes...
+    death_row();
+death_row(Reason) ->
+    %% When the connection is on its way down operations
+    %% begin to fail. We catch the failures and call
+    %% this function waiting for termination. We should
+    %% be terminated by one of our links to the other
+    %% involved parties that began bringing the
+    %% connection down. By waiting for termination we
+    %% avoid altering the exit reason for the connection
+    %% teardown. We however limit the wait to 5 seconds
+    %% and bring down the connection ourselves if not
+    %% terminated...
+    receive after 5000 -> exit(Reason) end.
diff --git a/lib/kernel/include/dist.hrl b/lib/kernel/include/dist.hrl
index d6bccdf474..db4a5eaebc 100644
--- a/lib/kernel/include/dist.hrl
+++ b/lib/kernel/include/dist.hrl
@@ -40,3 +40,33 @@
 -define(DFLAG_UTF8_ATOMS, 16#10000).
 -define(DFLAG_MAP_TAG, 16#20000).
 -define(DFLAG_BIG_CREATION, 16#40000).
+-define(DFLAG_SEND_SENDER, 16#80000).
+
+%% DFLAGs that require strict ordering or:ed together...
+-define(DFLAGS_STRICT_ORDER_DELIVERY,
+        ?DFLAG_DIST_HDR_ATOM_CACHE).
+
+
+%% Also update dflag2str() in ../src/dist_util.erl
+%% when adding flags...
+
+-define(DFLAGS_ALL,
+        (?DFLAG_PUBLISHED
+             bor ?DFLAG_ATOM_CACHE
+             bor ?DFLAG_EXTENDED_REFERENCES
+             bor ?DFLAG_DIST_MONITOR
+             bor ?DFLAG_FUN_TAGS
+             bor ?DFLAG_DIST_MONITOR_NAME
+             bor ?DFLAG_HIDDEN_ATOM_CACHE
+             bor ?DFLAG_NEW_FUN_TAGS
+             bor ?DFLAG_EXTENDED_PIDS_PORTS
+             bor ?DFLAG_EXPORT_PTR_TAG
+             bor ?DFLAG_BIT_BINARIES
+             bor ?DFLAG_NEW_FLOATS
+             bor ?DFLAG_UNICODE_IO
+             bor ?DFLAG_DIST_HDR_ATOM_CACHE
+             bor ?DFLAG_SMALL_ATOM_TAGS
+             bor ?DFLAG_UTF8_ATOMS
+             bor ?DFLAG_MAP_TAG
+             bor ?DFLAG_BIG_CREATION
+             bor ?DFLAG_SEND_SENDER)).
diff --git a/lib/kernel/include/dist_util.hrl b/lib/kernel/include/dist_util.hrl
index e3d2fe0eb6..eeb0f8dd43 100644
--- a/lib/kernel/include/dist_util.hrl
+++ b/lib/kernel/include/dist_util.hrl
@@ -29,9 +29,9 @@
 -endif.
 
 -ifdef(dist_trace).
--define(trace(Fmt,Args), io:format("~p ~p:~s",[erlang:timestamp(),node(),lists:flatten(io_lib:format(Fmt, Args))])).
+-define(trace(Fmt,Args), io:format("~p ~p:~s",[erlang:convert_time_unit(erlang:monotonic_time()-erlang:system_info(start_time), native, microsecond),node(),lists:flatten(io_lib:format(Fmt, Args))])).
 % Use the one below for config-file (early boot) connection tracing
-%-define(trace(Fmt,Args), erlang:display([erlang:now(),node(),lists:flatten(io_lib:format(Fmt, Args))])).
+%-define(trace(Fmt,Args), erlang:display([erlang:convert_time_unit(erlang:monotonic_time()-erlang:system_info(start_time), native, microsecond),node(),lists:flatten(io_lib:format(Fmt, Args))])).
 -define(trace_factor,8).
 -else.
 -define(trace(Fmt,Args), ok).
@@ -78,7 +78,13 @@
 
 	  %% New in kernel-5.1 (OTP 19.1):
 	  mf_setopts,        %% netkernel:setopts on active connection
-	  mf_getopts         %% netkernel:getopts on active connection
+	  mf_getopts,         %% netkernel:getopts on active connection
+
+          %% New in kernel-6.0 (OTP 21.0)
+          f_handshake_complete, %% Notify handshake complete
+          add_flags,         %% dflags to add
+          reject_flags,      %% dflags not to use (not all can be rejected)
+          require_flags     %% dflags that are required
 }).
 	  
 
diff --git a/lib/kernel/src/dist_util.erl b/lib/kernel/src/dist_util.erl
index b3507e5d13..08bd5946cd 100644
--- a/lib/kernel/src/dist_util.erl
+++ b/lib/kernel/src/dist_util.erl
@@ -74,6 +74,48 @@
 	       ticked = 0
 	       }).
 
+dflag2str(?DFLAG_PUBLISHED) ->
+    "PUBLISHED";
+dflag2str(?DFLAG_ATOM_CACHE) ->
+    "ATOM_CACHE";
+dflag2str(?DFLAG_EXTENDED_REFERENCES) ->
+    "EXTENDED_REFERENCES";
+dflag2str(?DFLAG_DIST_MONITOR) ->
+    "DIST_MONITOR";
+dflag2str(?DFLAG_FUN_TAGS) ->
+    "FUN_TAGS";
+dflag2str(?DFLAG_DIST_MONITOR_NAME) ->
+    "DIST_MONITOR_NAME";
+dflag2str(?DFLAG_HIDDEN_ATOM_CACHE) ->
+    "HIDDEN_ATOM_CACHE";
+dflag2str(?DFLAG_NEW_FUN_TAGS) ->
+    "NEW_FUN_TAGS";
+dflag2str(?DFLAG_EXTENDED_PIDS_PORTS) ->
+    "EXTENDED_PIDS_PORTS";
+dflag2str(?DFLAG_EXPORT_PTR_TAG) ->
+    "EXPORT_PTR_TAG";
+dflag2str(?DFLAG_BIT_BINARIES) ->
+    "BIT_BINARIES";
+dflag2str(?DFLAG_NEW_FLOATS) ->
+    "NEW_FLOATS";
+dflag2str(?DFLAG_UNICODE_IO) ->
+    "UNICODE_IO";
+dflag2str(?DFLAG_DIST_HDR_ATOM_CACHE) ->
+    "DIST_HDR_ATOM_CACHE";
+dflag2str(?DFLAG_SMALL_ATOM_TAGS) ->
+    "SMALL_ATOM_TAGS";
+dflag2str(?DFLAG_UTF8_ATOMS) ->
+    "UTF8_ATOMS";
+dflag2str(?DFLAG_MAP_TAG) ->
+    "MAP_TAG";
+dflag2str(?DFLAG_BIG_CREATION) ->
+    "BIG_CREATION";
+dflag2str(?DFLAG_SEND_SENDER) ->
+    "SEND_SENDER";
+dflag2str(_) ->
+    "UNKNOWN".
+
+
 remove_flag(Flag, Flags) ->
     case Flags band Flag of
 	0 ->
@@ -82,13 +124,13 @@ remove_flag(Flag, Flags) ->
 	    Flags - Flag
     end.
 
-adjust_flags(ThisFlags, OtherFlags) ->
+adjust_flags(ThisFlags, OtherFlags, RejectFlags) ->
     case (?DFLAG_PUBLISHED band ThisFlags) band OtherFlags of
 	0 ->
 	    {remove_flag(?DFLAG_PUBLISHED, ThisFlags),
 	     remove_flag(?DFLAG_PUBLISHED, OtherFlags)};
 	_ ->
-	    {ThisFlags, OtherFlags}
+	    {ThisFlags, OtherFlags band (bnot RejectFlags)}
     end.
 
 publish_flag(hidden, _) ->
@@ -101,36 +143,71 @@ publish_flag(_, OtherNode) ->
 	    0
     end.
 
-make_this_flags(RequestType, OtherNode) ->
-    publish_flag(RequestType, OtherNode) bor
-	%% The parenthesis below makes the compiler generate better code.
-	(?DFLAG_EXPORT_PTR_TAG bor
-	 ?DFLAG_EXTENDED_PIDS_PORTS bor
-	 ?DFLAG_EXTENDED_REFERENCES bor
-	 ?DFLAG_DIST_MONITOR bor
-	 ?DFLAG_FUN_TAGS bor
-	 ?DFLAG_DIST_MONITOR_NAME bor
-	 ?DFLAG_HIDDEN_ATOM_CACHE bor
-	 ?DFLAG_NEW_FUN_TAGS bor
-	 ?DFLAG_BIT_BINARIES bor
-	 ?DFLAG_NEW_FLOATS bor
-	 ?DFLAG_UNICODE_IO bor
-	 ?DFLAG_DIST_HDR_ATOM_CACHE bor
-	 ?DFLAG_SMALL_ATOM_TAGS bor
-	 ?DFLAG_UTF8_ATOMS bor
-	 ?DFLAG_MAP_TAG bor
-	 ?DFLAG_BIG_CREATION).
-
-handshake_other_started(#hs_data{request_type=ReqType}=HSData0) ->
+-define(DFLAGS_REMOVABLE,
+        (?DFLAG_DIST_HDR_ATOM_CACHE
+             bor ?DFLAG_HIDDEN_ATOM_CACHE
+             bor ?DFLAG_ATOM_CACHE)).
+
+-define(DFLAGS_ADDABLE,
+        (?DFLAGS_ALL
+             band (bnot (?DFLAG_PUBLISHED
+                             bor ?DFLAG_HIDDEN_ATOM_CACHE
+                             bor ?DFLAG_ATOM_CACHE)))).
+
+-define(DFLAGS_THIS_DEFAULT,
+        (?DFLAG_EXPORT_PTR_TAG
+             bor ?DFLAG_EXTENDED_PIDS_PORTS
+             bor ?DFLAG_EXTENDED_REFERENCES
+             bor ?DFLAG_DIST_MONITOR
+             bor ?DFLAG_FUN_TAGS
+             bor ?DFLAG_DIST_MONITOR_NAME
+             bor ?DFLAG_NEW_FUN_TAGS
+             bor ?DFLAG_BIT_BINARIES
+             bor ?DFLAG_NEW_FLOATS
+             bor ?DFLAG_UNICODE_IO
+             bor ?DFLAG_DIST_HDR_ATOM_CACHE
+             bor ?DFLAG_SMALL_ATOM_TAGS
+             bor ?DFLAG_UTF8_ATOMS
+             bor ?DFLAG_MAP_TAG
+             bor ?DFLAG_BIG_CREATION
+             bor ?DFLAG_SEND_SENDER)).
+
+make_this_flags(RequestType, AddFlags, RemoveFlags, OtherNode) ->
+    case RemoveFlags band (bnot ?DFLAGS_REMOVABLE) of
+        0 -> ok;
+        Rerror -> exit({"Rejecting non rejectable flags", Rerror})
+    end,
+    case AddFlags band (bnot ?DFLAGS_ADDABLE) of
+        0 -> ok;
+        Aerror -> exit({"Adding non addable flags", Aerror})
+    end,
+    Flgs0 = ?DFLAGS_THIS_DEFAULT,
+    Flgs1 = Flgs0 bor publish_flag(RequestType, OtherNode),
+    Flgs2 = Flgs1 bor AddFlags,
+    Flgs3 = Flgs2 band (bnot (?DFLAG_HIDDEN_ATOM_CACHE
+                                  bor ?DFLAG_ATOM_CACHE)),
+    Flgs3 band (bnot RemoveFlags).
+
+handshake_other_started(#hs_data{request_type=ReqType,
+                                 add_flags=AddFlgs0,
+                                 reject_flags=RejFlgs0,
+                                 require_flags=ReqFlgs0}=HSData0) ->
+    AddFlgs = convert_flags(AddFlgs0),
+    RejFlgs = convert_flags(RejFlgs0),
+    ReqFlgs = convert_flags(ReqFlgs0),
     {PreOtherFlags,Node,Version} = recv_name(HSData0),
-    PreThisFlags = make_this_flags(ReqType, Node),
+    PreThisFlags = make_this_flags(ReqType, AddFlgs, RejFlgs, Node),
     {ThisFlags, OtherFlags} = adjust_flags(PreThisFlags,
-					   PreOtherFlags),
+					   PreOtherFlags,
+                                           RejFlgs),
     HSData = HSData0#hs_data{this_flags=ThisFlags,
 			     other_flags=OtherFlags,
 			     other_version=Version,
 			     other_node=Node,
-			     other_started=true},
+			     other_started=true,
+                             add_flags=AddFlgs,
+                             reject_flags=RejFlgs,
+                             require_flags=ReqFlgs},
     check_dflags(HSData),
     is_allowed(HSData),
     ?debug({"MD5 connection from ~p (V~p)~n",
@@ -165,23 +242,18 @@ is_allowed(#hs_data{other_node = Node,
     end.
 
 %%
-%% Check that both nodes can handle the same types of extended
-%% node containers. If they can not, abort the connection.
+%% Check mandatory flags...
 %%
 check_dflags(#hs_data{other_node = Node,
                       other_flags = OtherFlags,
-                      other_started = OtherStarted} = HSData) ->
-
-    Mandatory = [{?DFLAG_EXTENDED_REFERENCES, "EXTENDED_REFERENCES"},
-                 {?DFLAG_EXTENDED_PIDS_PORTS, "EXTENDED_PIDS_PORTS"},
-                 {?DFLAG_UTF8_ATOMS, "UTF8_ATOMS"}],
-    Missing = lists:filtermap(fun({Bit, Str}) ->
-                                      case Bit band OtherFlags of
-                                          Bit -> false;
-                                          0 -> {true, Str}
-                                      end
-                              end,
-                              Mandatory),
+                      other_started = OtherStarted,
+                      require_flags = RequiredFlags} = HSData) ->
+    Mandatory = ((?DFLAG_EXTENDED_REFERENCES
+                      bor ?DFLAG_EXTENDED_PIDS_PORTS
+                      bor ?DFLAG_UTF8_ATOMS)
+                     bor RequiredFlags),
+    Missing = check_mandatory(0, ?DFLAGS_ALL, Mandatory,
+                              OtherFlags, []),
     case Missing of
         [] ->
             ok;
@@ -201,6 +273,22 @@ check_dflags(#hs_data{other_node = Node,
 	    ?shutdown2(Node, {check_dflags_failed, Missing})
     end.
 
+check_mandatory(_Bit, 0, _Mandatory, _OtherFlags, Missing) ->
+    Missing;
+check_mandatory(Bit, Left, Mandatory, OtherFlags, Missing) ->
+    DFlag = (1 bsl Bit),
+    NewLeft = Left band (bnot DFlag),
+    NewMissing = case {DFlag band Mandatory,
+                       DFlag band OtherFlags} of
+                     {DFlag, 0} ->
+                         %% Mandatory and missing...
+                         [dflag2str(DFlag) | Missing];
+                     _ ->
+                         %% Not mandatory or present...
+                         Missing
+                 end,
+    check_mandatory(Bit+1, NewLeft, Mandatory, OtherFlags, NewMissing).
+                    
 
 %% No nodedown will be sent if we fail before this process has
 %% succeeded to mark the node as pending.
@@ -314,13 +402,24 @@ flush_down() ->
     end.
 
 handshake_we_started(#hs_data{request_type=ReqType,
-			      other_node=Node}=PreHSData) ->
-    PreThisFlags = make_this_flags(ReqType, Node),
-    HSData = PreHSData#hs_data{this_flags=PreThisFlags},
+			      other_node=Node,
+                              add_flags=AddFlgs0,
+                              reject_flags=RejFlgs0,
+                              require_flags=ReqFlgs0}=PreHSData) ->
+    AddFlgs = convert_flags(AddFlgs0),
+    RejFlgs = convert_flags(RejFlgs0),
+    ReqFlgs = convert_flags(ReqFlgs0),
+    PreThisFlags = make_this_flags(ReqType, AddFlgs, RejFlgs, Node),
+    HSData = PreHSData#hs_data{this_flags = PreThisFlags,
+                               add_flags = AddFlgs,
+                               reject_flags = RejFlgs,
+                               require_flags = ReqFlgs},
     send_name(HSData),
     recv_status(HSData),
     {PreOtherFlags,ChallengeA} = recv_challenge(HSData),
-    {ThisFlags,OtherFlags} = adjust_flags(PreThisFlags, PreOtherFlags),
+    {ThisFlags,OtherFlags} = adjust_flags(PreThisFlags,
+                                          PreOtherFlags,
+                                          RejFlgs),
     NewHSData = HSData#hs_data{this_flags = ThisFlags,
 			       other_flags = OtherFlags, 
 			       other_started = false}, 
@@ -336,15 +435,16 @@ handshake_we_started(#hs_data{request_type=ReqType,
 handshake_we_started(OldHsData) when element(1,OldHsData) =:= hs_data ->
     handshake_we_started(convert_old_hsdata(OldHsData)).
 
-convert_old_hsdata({hs_data, KP, ON, TN, S, T, TF, A, OV, OF, OS, FS, FR,
-		    FS_PRE, FS_POST, FG, FA, MFT, MFG, RT}) ->
-    #hs_data{
-       kernel_pid = KP, other_node = ON, this_node = TN, socket = S, timer = T,
-       this_flags = TF, allowed = A, other_version = OV, other_flags = OF,
-       other_started = OS, f_send = FS, f_recv = FR, f_setopts_pre_nodeup = FS_PRE,
-       f_setopts_post_nodeup = FS_POST, f_getll = FG, f_address = FA,
-       mf_tick = MFT, mf_getstat = MFG, request_type = RT}.
+convert_old_hsdata(OldHsData) ->
+    OHSDL = tuple_to_list(OldHsData),
+    NoMissing = tuple_size(#hs_data{}) - tuple_size(OldHsData),
+    true = NoMissing > 0,
+    list_to_tuple(OHSDL ++ lists:duplicate(NoMissing, undefined)).
 
+convert_flags(Flags) when is_integer(Flags) ->
+    Flags;
+convert_flags(_Undefined) ->
+    0.
 
 %% --------------------------------------------------------------
 %% The connection has been established.
@@ -359,15 +459,20 @@ connection(#hs_data{other_node = Node,
     PType = publish_type(HSData#hs_data.other_flags), 
     case FPreNodeup(Socket) of
 	ok -> 
-	    do_setnode(HSData), % Succeeds or exits the process.
+	    DHandle = do_setnode(HSData), % Succeeds or exits the process.
 	    Address = FAddress(Socket,Node),
 	    mark_nodeup(HSData,Address),
 	    case FPostNodeup(Socket) of
 		ok ->
+                    case HSData#hs_data.f_handshake_complete of
+                        undefined -> ok;
+                        HsComplete -> HsComplete(Socket, Node, DHandle)
+                    end,
 		    con_loop({HSData#hs_data.kernel_pid,
 			      Node,
 			      Socket,
 			      PType,
+                              DHandle,
 			      HSData#hs_data.mf_tick,
 			      HSData#hs_data.mf_getstat,
 			      HSData#hs_data.mf_setopts,
@@ -425,18 +530,16 @@ do_setnode(#hs_data{other_node = Node, socket = Socket,
 		   [Node, Port, {publish_type(Flags), 
 				 '(', Flags, ')', 
 				 Version}]),
-	    case (catch 
-		  erlang:setnode(Node, Port, 
-				 {Flags, Version, '', ''})) of
-		{'EXIT', {system_limit, _}} ->
+            try
+                erlang:setnode(Node, Port, {Flags, Version, '', ''})
+            catch
+                error:system_limit ->
 		    error_msg("** Distribution system limit reached, "
 			      "no table space left for node ~w ** ~n",
 			      [Node]),
 		    ?shutdown(Node);
-		{'EXIT', Other} ->
-		    exit(Other);
-		_Else ->
-		    ok
+                error:Other ->
+                    exit({Other, erlang:get_stacktrace()})
 	    end;
 	_ ->
 	    error_msg("** Distribution connection error, "
@@ -468,7 +571,13 @@ mark_nodeup(#hs_data{kernel_pid = Kernel,
 	    ?shutdown(Node)
     end.
 
-con_loop({Kernel, Node, Socket, Type, MFTick, MFGetstat, MFSetOpts, MFGetOpts}=ConData,
+getstat(DHandle, _Socket, undefined) ->
+    erlang:dist_get_stat(DHandle);
+getstat(_DHandle, Socket, MFGetstat) ->
+    MFGetstat(Socket).
+
+con_loop({Kernel, Node, Socket, Type, DHandle, MFTick, MFGetstat,
+          MFSetOpts, MFGetOpts}=ConData,
 	 Tick) ->
     receive
 	{tcp_closed, Socket} ->
@@ -476,7 +585,7 @@ con_loop({Kernel, Node, Socket, Type, MFTick, MFGetstat, MFSetOpts, MFGetOpts}=C
 	{Kernel, disconnect} ->
 	    ?shutdown2(Node, disconnected);
 	{Kernel, aux_tick} ->
-	    case MFGetstat(Socket) of
+	    case getstat(DHandle, Socket, MFGetstat) of
 		{ok, _, _, PendWrite} ->
 		    send_tick(Socket, PendWrite, MFTick);
 		_ ->
@@ -484,7 +593,7 @@ con_loop({Kernel, Node, Socket, Type, MFTick, MFGetstat, MFSetOpts, MFGetOpts}=C
 	    end,
 	    con_loop(ConData, Tick);
 	{Kernel, tick} ->
-	    case send_tick(Socket, Tick, Type, 
+	    case send_tick(DHandle, Socket, Tick, Type, 
 			   MFTick, MFGetstat) of
 		{ok, NewTick} ->
 		    con_loop(ConData, NewTick);
@@ -497,7 +606,7 @@ con_loop({Kernel, Node, Socket, Type, MFTick, MFGetstat, MFSetOpts, MFGetOpts}=C
 		    ?shutdown2(Node, send_net_tick_failed)
 	    end;
 	{From, get_status} ->
-	    case MFGetstat(Socket) of
+	    case getstat(DHandle, Socket, MFGetstat) of
 		{ok, Read, Write, _} ->
 		    From ! {self(), get_status, {ok, Read, Write}},
 		    con_loop(ConData, Tick);
@@ -735,14 +844,14 @@ send_status(#hs_data{socket = Socket, other_node = Node,
 %% we haven't read anything as a hidden node only ticks when it receives 
 %% a TICK !! 
 	
-send_tick(Socket, Tick, Type, MFTick, MFGetstat) ->
+send_tick(DHandle, Socket, Tick, Type, MFTick, MFGetstat) ->
     #tick{tick = T0,
 	  read = Read,
 	  write = Write,
 	  ticked = Ticked} = Tick,
     T = T0 + 1,
     T1 = T rem 4,
-    case MFGetstat(Socket) of
+    case getstat(DHandle, Socket, MFGetstat) of
 	{ok, Read, _, _} when  Ticked =:= T ->
 	    {error, not_responding};
 	{ok, Read, W, Pend} when Type =:= hidden ->
@@ -771,11 +880,10 @@ send_tick(Socket, Tick, Type, MFTick, MFGetstat) ->
 	    Error
     end.
 
-send_tick(Socket, 0, MFTick) ->
-    MFTick(Socket);
-send_tick(_, _Pend, _) ->
-    %% Dont send tick if pending write.
-    ok.
+send_tick(_, Pend, _) when Pend /= false, Pend /= 0 ->
+    ok; %% Dont send tick if pending write.
+send_tick(Socket, _Pend, MFTick) ->
+    MFTick(Socket).
 
 %% ------------------------------------------------------------
 %% Connection setup timeout timer.
diff --git a/lib/kernel/src/erl_boot_server.erl b/lib/kernel/src/erl_boot_server.erl
index ac81cc9689..2a38266579 100644
--- a/lib/kernel/src/erl_boot_server.erl
+++ b/lib/kernel/src/erl_boot_server.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -253,9 +253,9 @@ handle_info({udp, U, IP, Port, Data}, S0) ->
 				   "~w is not a valid address ** ~n", [IP]),
 	    {noreply,S0};
 	{true,_,_} ->
-	    case catch string:substr(Data, 1, length(?EBOOT_REQUEST)) of
+	    case catch string:slice(Data, 0, length(?EBOOT_REQUEST)) of
 		?EBOOT_REQUEST ->
-		    Vsn = string:substr(Data, length(?EBOOT_REQUEST)+1, length(Data)),
+		    Vsn = string:slice(Data, length(?EBOOT_REQUEST), length(Data)),
 		    error_logger:error_msg("** Illegal boot server connection attempt: "
 					   "client version is ~s ** ~n", [Vsn]);
 		_ ->
diff --git a/lib/kernel/src/erl_reply.erl b/lib/kernel/src/erl_reply.erl
index e1e046cbb4..e1c4ffe839 100644
--- a/lib/kernel/src/erl_reply.erl
+++ b/lib/kernel/src/erl_reply.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1997-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2017. All Rights Reserved.
 %% 
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -42,7 +42,7 @@ reply(_) ->
 
 %% convert ip number to tuple
 ip_string_to_tuple(Ip) ->
-    [Ip1,Ip2,Ip3,Ip4] = string:tokens(Ip,"."),
+    [Ip1,Ip2,Ip3,Ip4] = string:lexemes(Ip,"."),
     {list_to_integer(Ip1),
      list_to_integer(Ip2),
      list_to_integer(Ip3),
diff --git a/lib/kernel/src/error_logger.erl b/lib/kernel/src/error_logger.erl
index 9bf8547745..585507c545 100644
--- a/lib/kernel/src/error_logger.erl
+++ b/lib/kernel/src/error_logger.erl
@@ -504,7 +504,11 @@ string_p([]) ->
 string_p(Term) ->
     string_p1(Term).
 
-string_p1([H|T]) when is_integer(H), H >= $\s, H < 255 ->
+string_p1([H|T]) when is_integer(H), H >= $\040, H =< $\176 ->
+    string_p1(T);
+string_p1([H|T]) when is_integer(H), H >= 16#A0, H < 16#D800;
+                      is_integer(H), H > 16#DFFF, H < 16#FFFE;
+                      is_integer(H), H > 16#FFFF, H =< 16#10FFFF ->
     string_p1(T);
 string_p1([$\n|T]) -> string_p1(T);
 string_p1([$\r|T]) -> string_p1(T);
diff --git a/lib/kernel/src/erts_debug.erl b/lib/kernel/src/erts_debug.erl
index 480db6814e..2887014c1c 100644
--- a/lib/kernel/src/erts_debug.erl
+++ b/lib/kernel/src/erts_debug.erl
@@ -378,16 +378,11 @@ df(Mod, Func, Arity) when is_atom(Mod), is_atom(Func) ->
     catch _:_ -> {undef,Mod}
     end.
 
-dff(File, Fs) when is_pid(File), is_list(Fs) ->
-    lists:foreach(fun(Mfa) ->
-			  disassemble_function(File, Mfa),
-			  io:nl(File)
-		  end, Fs);
-dff(Name, Fs) when is_list(Name) ->
-    case file:open(Name, [write]) of
+dff(Name, Fs) ->
+    case file:open(Name, [write,raw,delayed_write]) of
 	{ok,F} ->
 	    try
-		dff(F, Fs)
+		dff_1(F, Fs)
 	    after
 		_ = file:close(F)
 	    end;
@@ -395,12 +390,18 @@ dff(Name, Fs) when is_list(Name) ->
 	    {error,{badopen,Reason}}
     end.
 
+dff_1(File, Fs) ->
+    lists:foreach(fun(Mfa) ->
+                          disassemble_function(File, Mfa),
+                          file:write(File, "\n")
+                  end, Fs).
+
 disassemble_function(File, {_,_,_}=MFA) ->
     cont_dis(File, erts_debug:disassemble(MFA), MFA).
 
 cont_dis(_, false, _) -> ok;
 cont_dis(File, {Addr,Str,MFA}, MFA) ->
-    io:put_chars(File, binary_to_list(Str)),
+    ok = file:write(File, Str),
     cont_dis(File, erts_debug:disassemble(Addr), MFA);
 cont_dis(_, {_,_,_}, _) -> ok.
 
diff --git a/lib/kernel/src/file_server.erl b/lib/kernel/src/file_server.erl
index 6504174cbc..6e8f64d932 100644
--- a/lib/kernel/src/file_server.erl
+++ b/lib/kernel/src/file_server.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -207,7 +207,7 @@ handle_call(stop, _From, Handle) ->
     {stop, normal, stopped, Handle};
 
 handle_call(Request, From, Handle) ->
-    error_logger:error_msg("handle_call(~p, ~p, _)", [Request, From]),
+    error_logger:error_msg("handle_call(~tp, ~tp, _)", [Request, From]),
     {noreply, Handle}.
 
 %%----------------------------------------------------------------------
@@ -220,7 +220,7 @@ handle_call(Request, From, Handle) ->
 -spec handle_cast(term(), state()) -> {'noreply', state()}.
 
 handle_cast(Msg, State) ->
-    error_logger:error_msg("handle_cast(~p, _)", [Msg]),
+    error_logger:error_msg("handle_cast(~tp, _)", [Msg]),
     {noreply, State}.
 
 %%----------------------------------------------------------------------
@@ -243,7 +243,7 @@ handle_info({'EXIT', Handle, _Reason}, Handle) ->
     {stop, normal, Handle};
 
 handle_info(Info, State) ->
-    error_logger:error_msg("handle_Info(~p, _)", [Info]),
+    error_logger:error_msg("handle_Info(~tp, _)", [Info]),
     {noreply, State}.
 
 %%----------------------------------------------------------------------
diff --git a/lib/kernel/src/global.erl b/lib/kernel/src/global.erl
index a9e92b28b8..a38522eb5c 100644
--- a/lib/kernel/src/global.erl
+++ b/lib/kernel/src/global.erl
@@ -262,7 +262,7 @@ check_dupname(Name, Pid) ->
                 {ok, allow} ->
                     true;
                 _ ->
-                    S = "global: ~w registered under several names: ~w\n",
+                    S = "global: ~w registered under several names: ~tw\n",
                     Names = [Name | [Name1 || {_Pid, Name1} <- PidNames]],
                     error_logger:error_msg(S, [Pid, Names]),
                     false
@@ -659,7 +659,7 @@ handle_call(stop, _From, S) ->
 handle_call(Request, From, S) ->
     error_logger:warning_msg("The global_name_server "
                              "received an unexpected message:\n"
-                             "handle_call(~p, ~p, _)\n", 
+                             "handle_call(~tp, ~tp, _)\n",
                              [Request, From]),
     {noreply, S}.
 
@@ -828,7 +828,7 @@ handle_cast({async_del_lock, _ResourceId, _Pid}, S) ->
 handle_cast(Request, S) ->
     error_logger:warning_msg("The global_name_server "
                              "received an unexpected message:\n"
-                             "handle_cast(~p, _)\n", [Request]),
+                             "handle_cast(~tp, _)\n", [Request]),
     {noreply, S}.
 
 %%========================================================================
@@ -955,7 +955,7 @@ handle_info({'DOWN', MonitorRef, process, _Pid, _Info}, S0) ->
 handle_info(Message, S) ->
     error_logger:warning_msg("The global_name_server "
                              "received an unexpected message:\n"
-                             "handle_info(~p, _)\n", [Message]),
+                             "handle_info(~tp, _)\n", [Message]),
     {noreply, S}.
 
 
@@ -1949,13 +1949,13 @@ exchange_names([{Name, Pid, Method} | Tail], Node, Ops, Res) ->
 		    exchange_names(Tail, Node, [Op | Ops], [Op | Res]);
 		{badrpc, Badrpc} ->
 		    error_logger:info_msg("global: badrpc ~w received when "
-					  "conflicting name ~w was found\n",
+					  "conflicting name ~tw was found\n",
 					  [Badrpc, Name]),
 		    Op = {insert, {Name, Pid, Method}},
 		    exchange_names(Tail, Node, [Op | Ops], Res);
 		Else ->
 		    error_logger:info_msg("global: Resolve method ~w for "
-					  "conflicting name ~w returned ~w\n",
+					  "conflicting name ~tw returned ~tw\n",
 					  [Method, Name, Else]),
 		    Op = {delete, Name},
 		    exchange_names(Tail, Node, [Op | Ops], [Op | Res])
@@ -1984,7 +1984,7 @@ minmax(P1,P2) ->
       Pid2 :: pid().
 random_exit_name(Name, Pid, Pid2) ->
     {Min, Max} = minmax(Pid, Pid2),
-    error_logger:info_msg("global: Name conflict terminating ~w\n",
+    error_logger:info_msg("global: Name conflict terminating ~tw\n",
 			  [{Name, Max}]),
     exit(Max, kill),
     Min.
@@ -2200,7 +2200,7 @@ unexpected_message({'EXIT', _Pid, _Reason}, _What) ->
     ok;
 unexpected_message(Message, What) -> 
     error_logger:warning_msg("The global_name_server ~w process "
-                             "received an unexpected message:\n~p\n", 
+                             "received an unexpected message:\n~tp\n",
                              [What, Message]).
 
 %%% Utilities
diff --git a/lib/kernel/src/group.erl b/lib/kernel/src/group.erl
index bf785959ff..e1198d2587 100644
--- a/lib/kernel/src/group.erl
+++ b/lib/kernel/src/group.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2017. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -261,11 +261,11 @@ io_request({put_chars,latin1,M,F,As}, Drv, From, Buf) ->
     end;
 
 io_request({get_chars,Encoding,Prompt,N}, Drv, _From, Buf) ->
-    get_chars(Prompt, io_lib, collect_chars, N, Drv, Buf, Encoding);
+    get_chars_n(Prompt, io_lib, collect_chars, N, Drv, Buf, Encoding);
 io_request({get_line,Encoding,Prompt}, Drv, _From, Buf) ->
-    get_chars(Prompt, io_lib, collect_line, [], Drv, Buf, Encoding);
+    get_chars_line(Prompt, io_lib, collect_line, [], Drv, Buf, Encoding);
 io_request({get_until,Encoding, Prompt,M,F,As}, Drv, _From, Buf) ->
-    get_chars(Prompt, io_lib, get_until, {M,F,As}, Drv, Buf, Encoding);
+    get_chars_line(Prompt, io_lib, get_until, {M,F,As}, Drv, Buf, Encoding);
 io_request({get_password,_Encoding},Drv,_From,Buf) ->
     get_password_chars(Drv, Buf);
 io_request({setopts,Opts}, Drv, _From, Buf) when is_list(Opts) ->
@@ -434,7 +434,7 @@ getopts(Drv,Buf) ->
     {ok,[Exp,Echo,Bin,Uni],Buf}.
     
 
-%% get_chars(Prompt, Module, Function, XtraArgument, Drv, Buffer)
+%% get_chars_*(Prompt, Module, Function, XtraArgument, Drv, Buffer)
 %%  Gets characters from the input Drv until as the applied function
 %%  returns {stop,Result,Rest}. Does not block output until input has been
 %%  received.
@@ -452,12 +452,21 @@ get_password_chars(Drv,Buf) ->
 	    {exit, terminated}
     end.
 
-get_chars(Prompt, M, F, Xa, Drv, Buf, Encoding) ->
+get_chars_n(Prompt, M, F, Xa, Drv, Buf, Encoding) ->
+    Pbs = prompt_bytes(Prompt, Encoding),
+    case get(echo) of
+        true ->
+            get_chars_loop(Pbs, M, F, Xa, Drv, Buf, start, Encoding);
+        false ->
+            get_chars_n_loop(Pbs, M, F, Xa, Drv, Buf, start, Encoding)
+    end.
+
+get_chars_line(Prompt, M, F, Xa, Drv, Buf, Encoding) ->
     Pbs = prompt_bytes(Prompt, Encoding),
     get_chars_loop(Pbs, M, F, Xa, Drv, Buf, start, Encoding).
 
 get_chars_loop(Pbs, M, F, Xa, Drv, Buf0, State, Encoding) ->
-    Result = case get(echo) of 
+    Result = case get(echo) of
 		 true ->
 		     get_line(Buf0, Pbs, Drv, Encoding);
 		 false ->
@@ -466,8 +475,8 @@ get_chars_loop(Pbs, M, F, Xa, Drv, Buf0, State, Encoding) ->
 		     get_line_echo_off(Buf0, Pbs, Drv)
 	     end,
     case Result of
-	{done,Line,Buf1} ->
-	    get_chars_apply(Pbs, M, F, Xa, Drv, Buf1, State, Line, Encoding);
+	{done,Line,Buf} ->
+            get_chars_apply(Pbs, M, F, Xa, Drv, Buf, State, Line, Encoding);
 	interrupted ->
 	    {error,{error,interrupted},[]};
 	terminated ->
@@ -476,12 +485,29 @@ get_chars_loop(Pbs, M, F, Xa, Drv, Buf0, State, Encoding) ->
 
 get_chars_apply(Pbs, M, F, Xa, Drv, Buf, State0, Line, Encoding) ->
     case catch M:F(State0, cast(Line,get(read_mode), Encoding), Encoding, Xa) of
-	{stop,Result,Rest} ->
-	    {ok,Result,append(Rest, Buf, Encoding)};
-	{'EXIT',_} ->
-	    {error,{error,err_func(M, F, Xa)},[]};
-	State1 ->
-	    get_chars_loop(Pbs, M, F, Xa, Drv, Buf, State1, Encoding)
+        {stop,Result,Rest} ->
+            {ok,Result,append(Rest, Buf, Encoding)};
+        {'EXIT',_} ->
+            {error,{error,err_func(M, F, Xa)},[]};
+        State1 ->
+            get_chars_loop(Pbs, M, F, Xa, Drv, Buf, State1, Encoding)
+    end.
+
+get_chars_n_loop(Pbs, M, F, Xa, Drv, Buf0, State, Encoding) ->
+    try M:F(State, cast(Buf0, get(read_mode), Encoding), Encoding, Xa) of
+        {stop,Result,Rest} ->
+            {ok, Result, Rest};
+        State1 ->
+            case get_chars_echo_off(Pbs, Drv) of
+                interrupted ->
+                    {error,{error,interrupted},[]};
+                terminated ->
+                    {exit,terminated};
+                Buf ->
+                    get_chars_n_loop(Pbs, M, F, Xa, Drv, Buf, State1, Encoding)
+            end
+    catch _:_ ->
+            {error,{error,err_func(M, F, Xa)},[]}
     end.
 
 %% Convert error code to make it look as before
@@ -684,6 +710,29 @@ get_line_echo_off1({Chars,[]}, Drv) ->
 get_line_echo_off1({Chars,Rest}, _Drv) ->
     {done,lists:reverse(Chars),case Rest of done -> []; _ -> Rest end}.
 
+get_chars_echo_off(Pbs, Drv) ->
+    send_drv_reqs(Drv, [{put_chars, unicode,Pbs}]),
+    get_chars_echo_off1(Drv).
+
+get_chars_echo_off1(Drv) ->
+    receive
+        {Drv, {data, Cs}} ->
+            Cs;
+	{Drv, eof} ->
+            eof;
+	{io_request,From,ReplyAs,Req} when is_pid(From) ->
+	    io_request(Req, From, ReplyAs, Drv, []),
+	    get_chars_echo_off1(Drv);
+        {reply,{{From,ReplyAs},Reply}} when From =/= undefined ->
+            %% We take care of replies from puts here as well
+            io_reply(From, ReplyAs, Reply),
+            get_chars_echo_off1(Drv);
+	{'EXIT',Drv,interrupt} ->
+	    interrupted;
+	{'EXIT',Drv,_} ->
+	    terminated
+    end.
+
 %% We support line editing for the ICANON mode except the following
 %% line editing characters, which already has another meaning in
 %% echo-on mode (See Advanced Programming in the Unix Environment, 2nd ed,
@@ -793,9 +842,9 @@ search_up_stack(Stack, Substr) ->
     case up_stack(Stack) of
 	{none,NewStack} -> {none,NewStack};
 	{L, NewStack} ->
-	    case string:str(L, Substr) of
-		0 -> search_up_stack(NewStack, Substr);
-		_ -> {string:strip(L,right,$\n), NewStack}
+            case string:find(L, Substr) of
+                nomatch -> search_up_stack(NewStack, Substr);
+                _ -> {string:trim(L, trailing, "$\n"), NewStack}
 	    end
     end.
 
@@ -803,9 +852,9 @@ search_down_stack(Stack, Substr) ->
     case down_stack(Stack) of
 	{none,NewStack} -> {none,NewStack};
 	{L, NewStack} ->
-	    case string:str(L, Substr) of
-		0 -> search_down_stack(NewStack, Substr);
-		_ -> {string:strip(L,right,$\n), NewStack}
+	    case string:find(L, Substr) of
+		nomatch -> search_down_stack(NewStack, Substr);
+		_ -> {string:trim(L, trailing, "$\n"), NewStack}
 	    end
     end.
 
diff --git a/lib/kernel/src/inet_config.erl b/lib/kernel/src/inet_config.erl
index 4bbc520449..9f76360b8b 100644
--- a/lib/kernel/src/inet_config.erl
+++ b/lib/kernel/src/inet_config.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -369,7 +369,7 @@ win32_load1(Reg,Type,HFileKey) ->
     end.
 
 win32_split_line(Line,nt) -> inet_parse:split_line(Line);
-win32_split_line(Line,windows) -> string:tokens(Line, ",").
+win32_split_line(Line,windows) -> string:lexemes(Line, ",").
 
 win32_get_strings(Reg, Names) ->
     win32_get_strings(Reg, Names, []).
diff --git a/lib/kernel/src/inet_dns.erl b/lib/kernel/src/inet_dns.erl
index d5f982cc51..f1f58bc872 100644
--- a/lib/kernel/src/inet_dns.erl
+++ b/lib/kernel/src/inet_dns.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -29,7 +29,7 @@
 
 -export([decode/1, encode/1]).
 
--import(lists, [reverse/1, reverse/2, nthtail/2]).
+-import(lists, [reverse/1]).
 
 -include("inet_int.hrl").
 -include("inet_dns.hrl").
@@ -473,7 +473,7 @@ decode_data(<<Order:16,Preference:16,Data0/binary>>, _, ?S_NAPTR, Buffer) ->
     {Data2,Services} = decode_string(Data1),
     {Data,Regexp} = decode_characters(Data2, utf8),
     Replacement = decode_domain(Data, Buffer),
-    {Order,Preference,string:to_lower(Flags),string:to_lower(Services),
+    {Order,Preference,string:lowercase(Flags),string:lowercase(Services),
      Regexp,Replacement};
 %% ?S_OPT falls through to default
 decode_data(Data, _, ?S_TXT, _) ->
diff --git a/lib/kernel/src/inet_parse.erl b/lib/kernel/src/inet_parse.erl
index 29804dc50b..e9685c6554 100644
--- a/lib/kernel/src/inet_parse.erl
+++ b/lib/kernel/src/inet_parse.erl
@@ -95,7 +95,7 @@ hosts(Fname,File) ->
 		 %% interface with a %if suffix. These kind of
 		 %% addresses maybe need to be gracefully handled
 		 %% throughout inet* and inet_drv.
-		 case string:tokens(Address, "%") of
+		 case string:lexemes(Address, "%") of
 		     [Addr,_] ->
 			 {ok,_} = address(Addr),
 			 skip;
@@ -407,7 +407,7 @@ is_dom1([C | Cs]) when C >= $a, C =< $z -> is_dom_ldh(Cs);
 is_dom1([C | Cs]) when C >= $A, C =< $Z -> is_dom_ldh(Cs);
 is_dom1([C | Cs]) when C >= $0, C =< $9 -> 
     case is_dom_ldh(Cs) of
-	true  -> is_dom2(string:tokens([C | Cs],"."));
+	true  -> is_dom2(string:lexemes([C | Cs],"."));
 	false -> false
     end;
 is_dom1(_) -> false.
diff --git a/lib/kernel/src/inet_res.erl b/lib/kernel/src/inet_res.erl
index 90e49ddfdf..49aa5f8bda 100644
--- a/lib/kernel/src/inet_res.erl
+++ b/lib/kernel/src/inet_res.erl
@@ -859,15 +859,17 @@ query_ns(S0, Id, Buffer, IP, Port, Timer, Retry, I,
 		{ok,S} ->
 		    Timeout =
 			inet:timeout( (Tm * (1 bsl I)) div Retry, Timer),
-		    {S,
 		     case query_udp(
 			    S, Id, Buffer, IP, Port, Timeout, Verbose) of
 			 {ok,#dns_rec{header=H}} when H#dns_header.tc ->
 			     TcpTimeout = inet:timeout(Tm*5, Timer),
-			     query_tcp(
-			       TcpTimeout, Id, Buffer, IP, Port, Verbose);
-			 Reply -> Reply
-		     end};
+			     {S, query_tcp(
+			       TcpTimeout, Id, Buffer, IP, Port, Verbose)};
+			{error, econnrefused} = Err ->
+                            ok = udp_close(S),
+	                    {#sock{}, Err};
+			Reply -> {S, Reply}
+		     end;
 		Error ->
 		    {S0,Error}
 	    end
diff --git a/lib/kernel/src/kernel.app.src b/lib/kernel/src/kernel.app.src
index 2a11b04310..080b11fc4d 100644
--- a/lib/kernel/src/kernel.app.src
+++ b/lib/kernel/src/kernel.app.src
@@ -120,6 +120,6 @@
   {applications, []},
   {env, [{error_logger, tty}]},
   {mod, {kernel, []}},
-  {runtime_dependencies, ["erts-9.1", "stdlib-3.0", "sasl-3.0"]}
+  {runtime_dependencies, ["erts-10.0", "stdlib-3.5", "sasl-3.0"]}
  ]
 }.
diff --git a/lib/kernel/src/net_kernel.erl b/lib/kernel/src/net_kernel.erl
index ddda396713..f36b4f1e6a 100644
--- a/lib/kernel/src/net_kernel.erl
+++ b/lib/kernel/src/net_kernel.erl
@@ -423,8 +423,8 @@ handle_call({connect, Type, Node}, From, State) ->
 		{ok, SetupPid} ->
 		    Owners = [{SetupPid, Node} | State#state.conn_owners],
 		    {noreply,State#state{conn_owners=Owners}};
-		_  ->
-		    ?connect_failure(Node, {setup_call, failed}),
+		_Error  ->
+		    ?connect_failure(Node, {setup_call, failed, _Error}),
 		    async_reply({reply, false, State}, From)
 	    end
     end;
@@ -778,7 +778,7 @@ handle_info(transition_period_end,
     {noreply,State#state{tick = #tick{ticker = Tckr, time = T}}};
 
 handle_info(X, State) ->
-    error_msg("Net kernel got ~w~n",[X]),
+    error_msg("Net kernel got ~tw~n",[X]),
     {noreply,State}.
 
 %% -----------------------------------------------------------
diff --git a/lib/kernel/src/os.erl b/lib/kernel/src/os.erl
index 0250783632..b5f19d4b99 100644
--- a/lib/kernel/src/os.erl
+++ b/lib/kernel/src/os.erl
@@ -25,6 +25,8 @@
 
 -include("file.hrl").
 
+-export_type([env_var_name/0, env_var_value/0, env_var_name_value/0, command_input/0]).
+
 %%% BIFs
 
 -export([getenv/0, getenv/1, getenv/2, getpid/0,
@@ -32,21 +34,29 @@
          putenv/2, set_signal/2, system_time/0, system_time/1,
 	 timestamp/0, unsetenv/1]).
 
--spec getenv() -> [string()].
+-type env_var_name() :: nonempty_string().
+
+-type env_var_value() :: string().
+
+-type env_var_name_value() :: nonempty_string().
+
+-type command_input() :: atom() | io_lib:chars().
+
+-spec getenv() -> [env_var_name_value()].
 
 getenv() -> erlang:nif_error(undef).
 
 -spec getenv(VarName) -> Value | false when
-      VarName :: string(),
-      Value :: string().
+      VarName :: env_var_name(),
+      Value :: env_var_value().
 
 getenv(_) ->
     erlang:nif_error(undef).
 
 -spec getenv(VarName, DefaultValue) -> Value when
-      VarName :: string(),
-      DefaultValue :: string(),
-      Value :: string().
+      VarName :: env_var_name(),
+      DefaultValue :: env_var_value(),
+      Value :: env_var_value().
 
 getenv(VarName, DefaultValue) ->
     case os:getenv(VarName) of
@@ -75,8 +85,8 @@ perf_counter(Unit) ->
       erlang:convert_time_unit(os:perf_counter(), perf_counter, Unit).
 
 -spec putenv(VarName, Value) -> true when
-      VarName :: string(),
-      Value :: string().
+      VarName :: env_var_name(),
+      Value :: env_var_value().
 
 putenv(_, _) ->
     erlang:nif_error(undef).
@@ -99,7 +109,7 @@ timestamp() ->
     erlang:nif_error(undef).
 
 -spec unsetenv(VarName) -> true when
-      VarName :: string().
+      VarName :: env_var_name().
 
 unsetenv(_) ->
     erlang:nif_error(undef).
@@ -178,7 +188,7 @@ verify_executable(Name0, [Ext|Rest], OrigExtensions) ->
     end;
 verify_executable(Name, [], OrigExtensions) when OrigExtensions =/= [""] -> %% Windows
     %% Will only happen on windows, hence case insensitivity
-    case can_be_full_name(string:to_lower(Name),OrigExtensions) of
+    case can_be_full_name(string:lowercase(Name),OrigExtensions) of
 	true ->
 	    verify_executable(Name,[""],[""]);
 	_ ->
@@ -232,10 +242,9 @@ extensions() ->
 
 %% Executes the given command in the default shell for the operating system.
 -spec cmd(Command) -> string() when
-      Command :: atom() | io_lib:chars().
+      Command :: os:command_input().
 cmd(Cmd) ->
-    validate(Cmd),
-    {SpawnCmd, SpawnOpts, SpawnInput, Eot} = mk_cmd(os:type(), Cmd),
+    {SpawnCmd, SpawnOpts, SpawnInput, Eot} = mk_cmd(os:type(), validate(Cmd)),
     Port = open_port({spawn, SpawnCmd}, [binary, stderr_to_stdout,
                                          stream, in, hide | SpawnOpts]),
     MonRef = erlang:monitor(port, Port),
@@ -255,8 +264,6 @@ mk_cmd({win32,Wtype}, Cmd) ->
                   {Cspec,_} -> lists:concat([Cspec," /c",Cmd])
               end,
     {Command, [], [], <<>>};
-mk_cmd(OsType,Cmd) when is_atom(Cmd) ->
-    mk_cmd(OsType, atom_to_list(Cmd));
 mk_cmd(_,Cmd) ->
     %% Have to send command in like this in order to make sh commands like
     %% cd and ulimit available
@@ -279,17 +286,33 @@ mk_cmd(_,Cmd) ->
      <<$\^D>>}.
 
 validate(Atom) when is_atom(Atom) ->
-    ok;
+    validate(atom_to_list(Atom));
 validate(List) when is_list(List) ->
-    validate1(List).
+    case validate1(List) of
+        false ->
+            List;
+        true -> 
+            %% Had zeros at end; remove them...
+            string:trim(List, trailing, [0])
+    end.
 
-validate1([C|Rest]) when is_integer(C) ->
+validate1([0|Rest]) ->
+    validate2(Rest);
+validate1([C|Rest]) when is_integer(C), C > 0 ->
     validate1(Rest);
 validate1([List|Rest]) when is_list(List) ->
-    validate1(List),
-    validate1(Rest);
+    validate1(List) or validate1(Rest);
 validate1([]) ->
-    ok.
+    false.
+
+%% Ensure that the rest is zero only...
+validate2([]) ->
+    true;
+validate2([0|Rest]) ->
+    validate2(Rest);
+validate2([List|Rest]) when is_list(List) ->
+    validate2(List),
+    validate2(Rest).
 
 get_data(Port, MonRef, Eot, Sofar) ->
     receive
diff --git a/lib/kernel/src/pg2.erl b/lib/kernel/src/pg2.erl
index edf4aedde2..c4732f37ee 100644
--- a/lib/kernel/src/pg2.erl
+++ b/lib/kernel/src/pg2.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -199,7 +199,7 @@ handle_call({delete, Name}, _From, S) ->
     {reply, ok, S};
 handle_call(Request, From, S) ->
     error_logger:warning_msg("The pg2 server received an unexpected message:\n"
-                             "handle_call(~p, ~p, _)\n", 
+                             "handle_call(~tp, ~tp, _)\n",
                              [Request, From]),
     {noreply, S}.
 
diff --git a/lib/kernel/src/user.erl b/lib/kernel/src/user.erl
index a5cc7b0ec1..872e63ab53 100644
--- a/lib/kernel/src/user.erl
+++ b/lib/kernel/src/user.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -398,7 +398,7 @@ get_line(Prompt, Port, Q, Acc, Enc) ->
 		    get_line_bytes(Prompt, Port, Q, Acc, Bytes, Enc);
 		{Port, eof} ->
 		    put(eof, true),
-		    {ok, eof, []};
+		    {ok, eof, queue:new()};
                 {io_request,From,ReplyAs,{get_geometry,_}=Req} when is_pid(From) ->
                     do_io_request(Req, From, ReplyAs, Port, 
                                   queue:new()), 
@@ -615,7 +615,7 @@ get_chars(Prompt, M, F, Xa, Port, Q, State, Enc) ->
 		    get_chars_bytes(State, M, F, Xa, Port, Q, Bytes, Enc);
 		{Port, eof} ->
 		    put(eof, true),
-		    {ok, eof, []};
+		    {ok, eof, queue:new()};
 		%%{io_request,From,ReplyAs,Request} when is_pid(From) ->
 		%%    get_chars_req(Prompt, M, F, Xa, Port, queue:new(), State,
 		%%		  Request, From, ReplyAs);
diff --git a/lib/kernel/src/user_drv.erl b/lib/kernel/src/user_drv.erl
index b794d4f45e..99ea4210bd 100644
--- a/lib/kernel/src/user_drv.erl
+++ b/lib/kernel/src/user_drv.erl
@@ -175,6 +175,18 @@ server_loop(Iport, Oport, Curr, User, Gr, {Resp, IOQ} = IOQueue) ->
 	{Iport,eof} ->
 	    Curr ! {self(),eof},
 	    server_loop(Iport, Oport, Curr, User, Gr, IOQueue);
+
+        %% We always handle geometry and unicode requests
+        {Requester,tty_geometry} ->
+            Requester ! {self(),tty_geometry,get_tty_geometry(Iport)},
+            server_loop(Iport, Oport, Curr, User, Gr, IOQueue);
+        {Requester,get_unicode_state} ->
+            Requester ! {self(),get_unicode_state,get_unicode_state(Iport)},
+            server_loop(Iport, Oport, Curr, User, Gr, IOQueue);
+        {Requester,set_unicode_state, Bool} ->
+            Requester ! {self(),set_unicode_state,set_unicode_state(Iport,Bool)},
+            server_loop(Iport, Oport, Curr, User, Gr, IOQueue);
+
         Req when element(1,Req) =:= User orelse element(1,Req) =:= Curr,
                  tuple_size(Req) =:= 2 orelse tuple_size(Req) =:= 3 ->
             %% We match {User|Curr,_}|{User|Curr,_,_}
@@ -224,21 +236,16 @@ server_loop(Iport, Oport, Curr, User, Gr, {Resp, IOQ} = IOQueue) ->
 		_ ->				% not current, just remove it
 		    server_loop(Iport, Oport, Curr, User, gr_del_pid(Gr, Pid), IOQueue)
 	    end;
+        {Requester, {put_chars_sync, _, _, Reply}} ->
+            %% We need to ack the Req otherwise originating process will hang forever
+            %% Do discard the output to non visible shells (as was done previously)
+            Requester ! {reply, Reply},
+            server_loop(Iport, Oport, Curr, User, Gr, IOQueue);
 	_X ->
-	    %% Ignore unknown messages.
-	    server_loop(Iport, Oport, Curr, User, Gr, IOQueue)
+            %% Ignore unknown messages.
+            server_loop(Iport, Oport, Curr, User, Gr, IOQueue)
     end.
 
-%% We always handle geometry and unicode requests
-handle_req({Curr,tty_geometry},Iport,_Oport,IOQueue) ->
-    Curr ! {self(),tty_geometry,get_tty_geometry(Iport)},
-    IOQueue;
-handle_req({Curr,get_unicode_state},Iport,_Oport,IOQueue) ->
-    Curr ! {self(),get_unicode_state,get_unicode_state(Iport)},
-    IOQueue;
-handle_req({Curr,set_unicode_state, Bool},Iport,_Oport,IOQueue) ->
-    Curr ! {self(),set_unicode_state,set_unicode_state(Iport,Bool)},
-    IOQueue;
 handle_req(next,Iport,Oport,{false,IOQ}=IOQueue) ->
     case queue:out(IOQ) of
         {empty,_} ->
diff --git a/lib/kernel/test/Makefile b/lib/kernel/test/Makefile
index b9942e899f..efe3a68531 100644
--- a/lib/kernel/test/Makefile
+++ b/lib/kernel/test/Makefile
@@ -148,8 +148,8 @@ release_tests_spec: make_emakefile
 	$(INSTALL_DIR) "$(RELSYSDIR)"
 	$(INSTALL_DATA) $(ERL_FILES) "$(RELSYSDIR)"
 	$(INSTALL_DATA) $(APP_FILES) "$(RELSYSDIR)"
-	$(INSTALL_DATA) kernel.spec kernel_smoke.spec  $(EMAKEFILE)\
-		$(COVERFILE) "$(RELSYSDIR)"
+	$(INSTALL_DATA) kernel.spec kernel_smoke.spec kernel_bench.spec \
+		$(EMAKEFILE) $(COVERFILE) "$(RELSYSDIR)"
 	chmod -R u+w "$(RELSYSDIR)"
 	@tar cf - *_SUITE_data | (cd "$(RELSYSDIR)"; tar xf -)
 
diff --git a/lib/kernel/test/code_SUITE.erl b/lib/kernel/test/code_SUITE.erl
index 6f8e949aac..569753155f 100644
--- a/lib/kernel/test/code_SUITE.erl
+++ b/lib/kernel/test/code_SUITE.erl
@@ -35,6 +35,7 @@
 	 purge_stacktrace/1, mult_lib_roots/1, bad_erl_libs/1,
 	 code_archive/1, code_archive2/1, on_load/1, on_load_binary/1,
 	 on_load_embedded/1, on_load_errors/1, on_load_update/1,
+         on_load_trace_on_load/1,
 	 on_load_purge/1, on_load_self_call/1, on_load_pending/1,
 	 on_load_deleted/1,
 	 big_boot_embedded/1,
@@ -66,14 +67,16 @@ all() ->
      ext_mod_dep, clash, where_is_file,
      purge_stacktrace, mult_lib_roots,
      bad_erl_libs, code_archive, code_archive2, on_load,
-     on_load_binary, on_load_embedded, on_load_errors, on_load_update,
+     on_load_binary, on_load_embedded, on_load_errors,
+     {group, sequence},
      on_load_purge, on_load_self_call, on_load_pending,
      on_load_deleted,
      module_status,
      big_boot_embedded, native_early_modules, get_mode, normalized_paths].
 
-groups() ->
-    [].
+%% These need to run in order
+groups() -> [{sequence, [sequence], [on_load_update,
+                                     on_load_trace_on_load]}].
 
 init_per_group(_GroupName, Config) ->
 	Config.
@@ -1493,7 +1496,7 @@ do_on_load_error(ReturnValue) ->
 	    {undef,[{on_load_error,main,[],_}|_]} = Exit
     end.
 
-on_load_update(_Config) ->
+on_load_update(Config) ->
     {Mod,Code1} = on_load_update_code(1),
     {module,Mod} = code:load_binary(Mod, "", Code1),
     42 = Mod:a(),
@@ -1503,7 +1506,7 @@ on_load_update(_Config) ->
     {Mod,Code2} = on_load_update_code(2),
     {error,on_load_failure} = code:load_binary(Mod, "", Code2),
     42 = Mod:a(),
-    100 = Mod:b(99),
+    78 = Mod:b(77),
     {'EXIT',{undef,_}} = (catch Mod:never()),
     4 = erlang:trace_pattern({Mod,'_','_'}, false),
 
@@ -1514,6 +1517,9 @@ on_load_update(_Config) ->
     {'EXIT',{undef,_}} = (catch Mod:b(10)),
     {'EXIT',{undef,_}} = (catch Mod:never()),
 
+    code:purge(Mod),
+    code:delete(Mod),
+    code:purge(Mod),
     ok.
 
 on_load_update_code(Version) ->
@@ -1545,6 +1551,31 @@ on_load_update_code_1(3, Mod) ->
 	"f() -> ok.\n",
 	"c() -> 100.\n"]).
 
+%% Test -on_load while trace feature 'on_load' is enabled (OTP-14612)
+on_load_trace_on_load(Config) ->
+    Papa = self(),
+    Tracer = spawn_link(fun F() -> receive M -> Papa ! M end, F() end),
+    {tracer,[]} = erlang:trace_info(self(),tracer),
+    erlang:trace(self(), true, [call, {tracer, Tracer}]),
+    erlang:trace_pattern(on_load, true, []),
+    on_load_update(Config),
+    erlang:trace_pattern(on_load, false, []),
+    erlang:trace(self(), false, [call]),
+
+    Ms = flush(),
+    [{trace, Papa, call, {on_load_update_code, a, []}},
+     {trace, Papa, call, {on_load_update_code, b, [99]}},
+     {trace, Papa, call, {on_load_update_code, c, []}}] = Ms,
+
+    exit(Tracer, normal),
+    ok.
+
+flush() ->
+    receive M -> [M | flush()]
+    after 100 -> []
+    end.
+
+
 on_load_purge(_Config) ->
     Mod = ?FUNCTION_NAME,
     register(Mod, self()),
diff --git a/lib/kernel/test/code_SUITE_data/upgrade_client.erl b/lib/kernel/test/code_SUITE_data/upgrade_client.erl
index faa18e1410..1c3c2def53 100644
--- a/lib/kernel/test/code_SUITE_data/upgrade_client.erl
+++ b/lib/kernel/test/code_SUITE_data/upgrade_client.erl
@@ -341,6 +341,7 @@ check_tracing_loop(N, MsgList) ->
 
 
 stop_tracing(Tracer) ->
+    erlang:trace_pattern({error_handler,undefined_function,3}, false, [global]),
     erlang:trace(self(), false, [call]),
     Tracer ! die_please,
     receive
diff --git a/lib/kernel/test/file_name_SUITE.erl b/lib/kernel/test/file_name_SUITE.erl
index 899102c908..f23529fec9 100644
--- a/lib/kernel/test/file_name_SUITE.erl
+++ b/lib/kernel/test/file_name_SUITE.erl
@@ -302,7 +302,9 @@ check_normal(Mod) ->
 	      {ok, BC} = Mod:read(FD,1024),
 	      ok = file:close(FD)
 	  end || {regular,Name,Content} <- NormalDir ],
+	{error, badarg} = Mod:rename("fil1\0tmp_fil2","tmp_fil1"),
 	Mod:rename("fil1","tmp_fil1"),
+	{error, badarg} = Mod:read_file("tmp_fil1\0.txt"),
 	{ok, <<"fil1">>} = Mod:read_file("tmp_fil1"),
 	{error,enoent} = Mod:read_file("fil1"),
 	Mod:rename("tmp_fil1","fil1"),
diff --git a/lib/kernel/test/gen_udp_SUITE.erl b/lib/kernel/test/gen_udp_SUITE.erl
index 8364fe7cdc..96e495505a 100644
--- a/lib/kernel/test/gen_udp_SUITE.erl
+++ b/lib/kernel/test/gen_udp_SUITE.erl
@@ -288,46 +288,56 @@ bad_address(Config) when is_list(Config) ->
 %%
 %% Starts a slave node that on command sends a bunch of messages
 %% to our UDP port. The receiving process just receives and
-%% ignores the incoming messages, but counts them.
-%% A tracing process traces the receiving process for
-%% 'receive' and scheduling events. From the trace, 
-%% message contents is verified; and, how many messages
-%% are received per in/out scheduling, which should be
-%% the same as the read_packets parameter.
-%% 
+%% ignores the incoming messages.
+%% A tracing process traces the receiving port for
+%% 'send' and scheduling events. From the trace,
+%% how many messages are received per in/out scheduling,
+%% which should never be more than the read_packet parameter.
 
 %% OTP-6249 UDP option for number of packet reads.
 read_packets(Config) when is_list(Config) ->
     N1 = 5,
-    N2 = 7,
+    N2 = 1,
+    Msgs = 30000,
     {ok,R} = gen_udp:open(0, [{read_packets,N1}]),
     {ok,RP} = inet:port(R),
     {ok,Node} = start_node(gen_udp_SUITE_read_packets),
     Die = make_ref(),
-    Loop = erlang:spawn_link(fun () -> infinite_loop(Die) end),
     %%
-    Msgs1 = [erlang:integer_to_list(M) || M <- lists:seq(1, N1*3)],
-    [V1|_] = read_packets_test(R, RP, Msgs1, Node),
+    {V1, Trace1} = read_packets_test(R, RP, Msgs, Node),
     {ok,[{read_packets,N1}]} = inet:getopts(R, [read_packets]),
     %%
     ok = inet:setopts(R, [{read_packets,N2}]),
-    Msgs2 = [erlang:integer_to_list(M) || M <- lists:seq(1, N2*3)],
-    [V2|_] = read_packets_test(R, RP, Msgs2, Node),
+    {V2, Trace2} = read_packets_test(R, RP, Msgs, Node),
     {ok,[{read_packets,N2}]} = inet:getopts(R, [read_packets]),
     %%
     stop_node(Node),
-    Mref = erlang:monitor(process, Loop),
-    Loop ! Die,
-    receive
-	{'DOWN',Mref,_,_, normal} ->
-	    case {V1,V2} of
-		{N1,N2} ->
-		    ok;
-		_ when V1 =/= N1, V2 =/= N2 ->
-		    ok
-	    end
+    ct:log("N1=~p, V1=~p vs N2=~p, V2=~p",[N1,V1,N2,V2]),
+
+    dump_terms(Config, "trace1.terms", Trace2),
+    dump_terms(Config, "trace2.terms", Trace2),
+
+    %% Because of the inherit racy-ness of the feature it is
+    %% hard to test that it behaves correctly.
+    %% Right now (OTP 21) a port task takes 5% of the
+    %% allotted port task reductions to execute, so
+    %% the max number of executions a port is allowed to
+    %% do before being re-scheduled is N * 20
+
+    if
+        V1 > (N1 * 20) ->
+            ct:fail("Got ~p msgs, max was ~p", [V1, N1]);
+        V2 > (N2 * 20) ->
+            ct:fail("Got ~p msgs, max was ~p", [V2, N2]);
+        true ->
+            ok
     end.
 
+dump_terms(Config, Name, Terms) ->
+    FName = filename:join(proplists:get_value(priv_dir, Config),Name),
+    file:write_file(FName, term_to_binary(Terms)),
+    ct:log("Logged terms to ~s",[FName]).
+
 infinite_loop(Die) ->
     receive 
 	Die ->
@@ -338,7 +348,6 @@ infinite_loop(Die) ->
     end.
 
 read_packets_test(R, RP, Msgs, Node) ->
-    Len = length(Msgs),
     Receiver = self(),
     Tracer =
 	spawn_link(
@@ -363,24 +372,24 @@ read_packets_test(R, RP, Msgs, Node) ->
 	  [link,{priority,high}]),
     receive
 	{Sender,{port,SP}} ->
-	    erlang:trace(self(), true,
-			 [running,'receive',{tracer,Tracer}]),
+	    erlang:trace(R, true,
+			 [running_ports,'send',{tracer,Tracer}]),
 	    erlang:yield(),
 	    Sender ! {Receiver,go},
-	    read_packets_recv(Len),
-	    erlang:trace(self(), false, [all]),
+	    read_packets_recv(Msgs),
+	    erlang:trace(R, false, [all]),
 	    Tracer ! {Receiver,get_trace},
 	    receive
 		{Tracer,{trace,Trace}} ->
-		    read_packets_verify(R, SP, Msgs, Trace)
+		    {read_packets_verify(R, SP, Trace), Trace}
 	    end
     end.
 
-read_packets_send(S, RP, [Msg|Msgs]) ->
-    ok = gen_udp:send(S, localhost, RP, Msg),
-    read_packets_send(S, RP, Msgs);
-read_packets_send(_S, _RP, []) ->
-    ok.
+read_packets_send(_S, _RP, 0) ->
+    ok;
+read_packets_send(S, RP, Msgs) ->
+    ok = gen_udp:send(S, localhost, RP, "UDP FLOOOOOOD"),
+    read_packets_send(S, RP, Msgs - 1).
 
 read_packets_recv(0) ->
     ok;
@@ -392,23 +401,24 @@ read_packets_recv(N) ->
 	    timeout
     end.
 
-read_packets_verify(R, SP, Msg, Trace) ->    
-    lists:reverse(
-      lists:sort(read_packets_verify(R, SP, Msg, Trace, 0))).
-
-read_packets_verify(R, SP, Msgs, [{trace,Self,OutIn,_}|Trace], M) 
-  when Self =:= self(), OutIn =:= out;
-       Self =:= self(), OutIn =:= in ->
-    push(M, read_packets_verify(R, SP, Msgs, Trace, 0));
-read_packets_verify(R, SP, [Msg|Msgs],
-		    [{trace,Self,'receive',{udp,R,{127,0,0,1},SP,Msg}}
-		     |Trace], M)
+read_packets_verify(R, SP, Trace) ->
+    [Max | _] = Pkts = lists:reverse(lists:sort(read_packets_verify(R, SP, Trace, 0))),
+    ct:pal("~p",[lists:sublist(Pkts,10)]),
+    Max.
+
+read_packets_verify(R, SP, [{trace,R,OutIn,_}|Trace], M) 
+  when OutIn =:= out; OutIn =:= in ->
+    push(M, read_packets_verify(R, SP, Trace, 0));
+read_packets_verify(R, SP, [{trace, R,'receive',timeout}|Trace], M) ->
+    push(M, read_packets_verify(R, SP, Trace, 0));
+read_packets_verify(R, SP,
+		    [{trace,R,'send',{udp,R,{127,0,0,1},SP,_Msg}, Self} | Trace], M)
   when Self =:= self() ->
-    read_packets_verify(R, SP, Msgs, Trace, M+1);
-read_packets_verify(_R, _SP, [], [], M) ->
+    read_packets_verify(R, SP, Trace, M+1);
+read_packets_verify(_R, _SP, [], M) ->
     push(M, []);
-read_packets_verify(_R, _SP, Msgs, Trace, M) ->
-    ct:fail({read_packets_verify,mismatch,Msgs,Trace,M}).
+read_packets_verify(_R, _SP, Trace, M) ->
+    ct:fail({read_packets_verify,mismatch,Trace,M}).
 
 push(0, Vs) ->
     Vs;
diff --git a/lib/kernel/test/kernel_bench.spec b/lib/kernel/test/kernel_bench.spec
new file mode 100644
index 0000000000..8de60dae31
--- /dev/null
+++ b/lib/kernel/test/kernel_bench.spec
@@ -0,0 +1 @@
+{groups,"../kernel_test",zlib_SUITE,[bench]}.
diff --git a/lib/kernel/test/os_SUITE.erl b/lib/kernel/test/os_SUITE.erl
index 53a9e168ef..8056321448 100644
--- a/lib/kernel/test/os_SUITE.erl
+++ b/lib/kernel/test/os_SUITE.erl
@@ -22,7 +22,8 @@
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
 	 init_per_group/2,end_per_group/2,
 	 init_per_testcase/2,end_per_testcase/2]).
--export([space_in_cwd/1, quoting/1, cmd_unicode/1, space_in_name/1, bad_command/1,
+-export([space_in_cwd/1, quoting/1, cmd_unicode/1, 
+         null_in_command/1, space_in_name/1, bad_command/1,
 	 find_executable/1, unix_comment_in_command/1, deep_list_command/1,
          large_output_command/1, background_command/0, background_command/1,
          message_leak/1, close_stdin/0, close_stdin/1, perf_counter_api/1]).
@@ -34,7 +35,8 @@ suite() ->
      {timetrap,{minutes,1}}].
 
 all() ->
-    [space_in_cwd, quoting, cmd_unicode, space_in_name, bad_command,
+    [space_in_cwd, quoting, cmd_unicode, null_in_command,
+     space_in_name, bad_command,
      find_executable, unix_comment_in_command, deep_list_command,
      large_output_command, background_command, message_leak,
      close_stdin, perf_counter_api].
@@ -125,6 +127,14 @@ cmd_unicode(Config) when is_list(Config) ->
     [] = receive_all(),
     ok.
 
+null_in_command(Config) ->
+    {Ok, Error} = case os:type() of
+                      {win32,_} -> {"dir", "di\0r"};
+                      _ -> {"ls", "l\0s"}
+                  end,
+    true = is_list(try os:cmd(Ok) catch Class0:_ -> Class0 end),
+    error = try os:cmd(Error) catch Class1:_ -> Class1 end,
+    ok.
 
 %% Test that program with a space in its name can be executed.
 space_in_name(Config) when is_list(Config) ->
diff --git a/lib/kernel/test/zlib_SUITE.erl b/lib/kernel/test/zlib_SUITE.erl
index a44ef106d3..7be7e503df 100644
--- a/lib/kernel/test/zlib_SUITE.erl
+++ b/lib/kernel/test/zlib_SUITE.erl
@@ -21,60 +21,56 @@
 -module(zlib_SUITE).
 
 -include_lib("common_test/include/ct.hrl").
-
--compile(export_all).
-
--define(error(Format,Args),
-	put(test_server_loc,{?MODULE,?LINE}),
-	error(Format,Args,?MODULE,?LINE)).
-
-%% Learn erts team how to really write tests ;-)
--define(m(ExpectedRes,Expr),
-	fun() ->
-		ACtual1 = (catch (Expr)),
-		try case ACtual1 of
-			ExpectedRes  -> ACtual1
-		    end
-		catch 
-		    error:{case_clause,ACtuAl} ->			
-			?error("Not Matching Actual result was:~n ~p ~n",
-			       [ACtuAl]),
-			ACtuAl
-		end
-	end()).
-
--define(BARG, {'EXIT',{badarg,[{zlib,_,_,_}|_]}}).
--define(DATA_ERROR, {'EXIT',{data_error,[{zlib,_,_,_}|_]}}).
-
-init_per_testcase(_Func, Config) ->
-    Config.
-
-end_per_testcase(_Func, _Config) ->
-    ok.
-
-error(Format, Args, File, Line) ->
-    io:format("~p:~p: ERROR: " ++ Format, [File,Line|Args]),
-    group_leader() ! {failed, File, Line}.
-
-%% Hopefully I don't need this to get it to work with the testserver..
-%%     Fail = #'REASON'{file = filename:basename(File),
-%% 		     line = Line,
-%% 		     desc = Args},
-%%     case global:whereis_name(mnesia_test_case_sup) of
-%% 	undefined -> 
-%% 	    ignore;
-%% 	Pid -> 
-%% 	    Pid ! Fail
-%% 	    %% 	    global:send(mnesia_test_case_sup, Fail),
-%%     end,
-%%     log("<>ERROR<>~n" ++ Format, Args, File, Line).
+-include_lib("common_test/include/ct_event.hrl").
+
+-export([suite/0, all/0, groups/0]).
+
+%% API group
+-export([api_open_close/1]).
+-export([api_deflateInit/1, api_deflateSetDictionary/1, api_deflateReset/1,
+         api_deflateParams/1, api_deflate/1, api_deflateEnd/1]).
+-export([api_inflateInit/1, api_inflateReset/1, api_inflate2/1, api_inflate3/1,
+         api_inflateChunk/1, api_safeInflate/1, api_inflateEnd/1]).
+-export([api_inflateSetDictionary/1, api_inflateGetDictionary/1]).
+-export([api_crc32/1, api_adler32/1]).
+-export([api_un_compress/1, api_un_zip/1, api_g_un_zip/1]).
+
+%% Examples group
+-export([intro/1]).
+
+%% Usage group
+-export([zip_usage/1, gz_usage/1, gz_usage2/1, compress_usage/1,
+         dictionary_usage/1, large_deflate/1, crc/1, adler/1,
+         only_allow_owner/1, sub_heap_binaries/1]).
+
+%% Bench group
+-export([inflate_bench_zeroed/1, inflate_bench_rand/1,
+       deflate_bench_zeroed/1, deflate_bench_rand/1,
+       chunk_bench_zeroed/1, chunk_bench_rand/1]).
+
+%% Others
+-export([smp/1, otp_9981/1, otp_7359/1]).
+
+-define(m(Guard, Expression),
+    fun() ->
+        Actual = (catch (Expression)),
+        case Actual of
+            Guard -> Actual;
+            _Other ->
+                ct:fail("Failed to match ~p, actual result was ~p",
+                    [??Guard, Actual])
+        end
+    end()).
+
+-define(EXIT(Reason), {'EXIT',{Reason,[{_,_,_,_}|_]}}).
 
 suite() ->
     [{ct_hooks,[ts_install_cth]},
      {timetrap,{minutes,1}}].
 
 all() -> 
-    [{group, api}, {group, examples}, {group, func}, smp,
+    [{group, api}, {group, examples}, {group, func},
+     {group, bench}, smp,
      otp_9981,
      otp_7359].
 
@@ -84,28 +80,19 @@ groups() ->
        api_deflateSetDictionary, api_deflateReset,
        api_deflateParams, api_deflate, api_deflateEnd,
        api_inflateInit, api_inflateSetDictionary, api_inflateGetDictionary,
-       api_inflateSync, api_inflateReset, api_inflate, api_inflateChunk,
-       api_inflateEnd, api_setBufsz, api_getBufsz, api_crc32,
-       api_adler32, api_getQSize, api_un_compress, api_un_zip,
+       api_inflateReset, api_inflate2, api_inflate3, api_inflateChunk,
+       api_safeInflate, api_inflateEnd, api_crc32,
+       api_adler32, api_un_compress, api_un_zip,
        api_g_un_zip]},
      {examples, [], [intro]},
      {func, [],
       [zip_usage, gz_usage, gz_usage2, compress_usage,
-       dictionary_usage, large_deflate, crc, adler]}].
-
-init_per_suite(Config) ->
-    Config.
-
-end_per_suite(_Config) ->
-    ok.
-
-init_per_group(_GroupName, Config) ->
-    Config.
-
-end_per_group(_GroupName, Config) ->
-    Config.
-
-
+       dictionary_usage, large_deflate, crc, adler,
+       only_allow_owner, sub_heap_binaries]},
+     {bench,
+      [inflate_bench_zeroed, inflate_bench_rand,
+       deflate_bench_zeroed, deflate_bench_rand,
+       chunk_bench_zeroed, chunk_bench_rand]}].
 
 %% Test open/0 and close/1.
 api_open_close(Config) when is_list(Config) ->
@@ -113,7 +100,7 @@ api_open_close(Config) when is_list(Config) ->
     Fd2 = zlib:open(),
     ?m(false,Fd1 == Fd2),
     ?m(ok,zlib:close(Fd1)),
-    ?m(?BARG, zlib:close(Fd1)),
+    ?m(?EXIT(not_initialized), zlib:close(Fd1)),
     ?m(ok,zlib:close(Fd2)),
 
     %% Make sure that we don't get any EXIT messages if trap_exit is enabled.
@@ -128,9 +115,11 @@ api_open_close(Config) when is_list(Config) ->
 %% Test deflateInit/2 and /6.
 api_deflateInit(Config) when is_list(Config) ->
     Z1 = zlib:open(),
-    ?m(?BARG, zlib:deflateInit(gurka, none)),
-    ?m(?BARG, zlib:deflateInit(gurka, gurka)),
-    ?m(?BARG, zlib:deflateInit(Z1, gurka)),
+
+    ?m(?EXIT(badarg), zlib:deflateInit(gurka, none)),
+
+    ?m(?EXIT(bad_compression_level), zlib:deflateInit(gurka, gurka)),
+    ?m(?EXIT(bad_compression_level), zlib:deflateInit(Z1, gurka)),
     Levels = [none, default, best_speed, best_compression] ++ lists:seq(0,9),
     lists:foreach(fun(Level) ->
 			  Z = zlib:open(),
@@ -138,20 +127,30 @@ api_deflateInit(Config) when is_list(Config) ->
 			  ?m(ok,zlib:close(Z))
 		  end, Levels),
     %% /6
-    ?m(?BARG, zlib:deflateInit(Z1,gurka,deflated,-15,8,default)),
-
-    ?m(?BARG, zlib:deflateInit(Z1,default,undefined,-15,8,default)),
-
-    ?m(?BARG, zlib:deflateInit(Z1,default,deflated,48,8,default)),
-    ?m(?BARG, zlib:deflateInit(Z1,default,deflated,-20,8,default)),
-    ?m(?BARG, zlib:deflateInit(Z1,default,deflated,-7,8,default)),
-    ?m(?BARG, zlib:deflateInit(Z1,default,deflated,7,8,default)),
-
-    ?m(?BARG, zlib:deflateInit(Z1,default,deflated,-15,0,default)),
-    ?m(?BARG, zlib:deflateInit(Z1,default,deflated,-15,10,default)),    
-
-    ?m(?BARG, zlib:deflateInit(Z1,default,deflated,-15,8,0)),
-    ?m(?BARG, zlib:deflateInit(Z1,default,deflated,-15,8,undefined)),
+    ?m(?EXIT(bad_compression_level),
+        zlib:deflateInit(Z1,gurka,deflated,-15,8,default)),
+
+    ?m(?EXIT(bad_compression_method),
+        zlib:deflateInit(Z1,default,undefined,-15,8,default)),
+
+    ?m(?EXIT(bad_compression_strategy),
+        zlib:deflateInit(Z1,default,deflated,-15,8,0)),
+    ?m(?EXIT(bad_compression_strategy),
+        zlib:deflateInit(Z1,default,deflated,-15,8,undefined)),
+
+    ?m(?EXIT(bad_windowbits),
+        zlib:deflateInit(Z1,default,deflated,48,8,default)),
+    ?m(?EXIT(bad_windowbits),
+        zlib:deflateInit(Z1,default,deflated,-20,8,default)),
+    ?m(?EXIT(bad_windowbits),
+        zlib:deflateInit(Z1,default,deflated,-7,8,default)),
+    ?m(?EXIT(bad_windowbits),
+        zlib:deflateInit(Z1,default,deflated,7,8,default)),
+
+    ?m(?EXIT(bad_memlevel),
+        zlib:deflateInit(Z1,default,deflated,-15,0,default)),
+    ?m(?EXIT(bad_memlevel),
+        zlib:deflateInit(Z1,default,deflated,-15,10,default)),
 
     lists:foreach(fun(Level) ->
 			  Z = zlib:open(),
@@ -183,7 +182,11 @@ api_deflateInit(Config) when is_list(Config) ->
 			  ?m(ok,zlib:close(Z))
 		  end, Strategies),
     ?m(ok, zlib:deflateInit(Z1,default,deflated,-15,8,default)),
-    ?m({'EXIT',_}, zlib:deflateInit(Z1,none,deflated,-15,8,default)), %% ?? 
+
+    %% Let it crash for any reason; we don't care about the order in which the
+    %% parameters are checked.
+    ?m(?EXIT(_), zlib:deflateInit(Z1,none,deflated,-15,8,default)),
+
     ?m(ok, zlib:close(Z1)).
 
 %% Test deflateSetDictionary.
@@ -192,17 +195,17 @@ api_deflateSetDictionary(Config) when is_list(Config) ->
     ?m(ok, zlib:deflateInit(Z1, default)),
     ?m(Id when is_integer(Id), zlib:deflateSetDictionary(Z1, <<1,1,2,3,4,5,1>>)),
     ?m(Id when is_integer(Id), zlib:deflateSetDictionary(Z1, [1,1,2,3,4,5,1])),
-    ?m(?BARG, zlib:deflateSetDictionary(Z1, gurka)),
-    ?m(?BARG, zlib:deflateSetDictionary(Z1, 128)),
-    ?m(_, zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, none)),
-    ?m({'EXIT',{stream_error,_}},zlib:deflateSetDictionary(Z1,<<1,1,2,3,4,5,1>>)),
+    ?m(?EXIT(badarg), zlib:deflateSetDictionary(Z1, gurka)),
+    ?m(?EXIT(badarg), zlib:deflateSetDictionary(Z1, 128)),
+    ?m(L when is_list(L), zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, none)),
+    ?m(?EXIT(stream_error), zlib:deflateSetDictionary(Z1,<<1,1,2,3,4,5,1>>)),
     ?m(ok, zlib:close(Z1)).
 
 %% Test deflateReset.
 api_deflateReset(Config) when is_list(Config) ->
     Z1 = zlib:open(),
     ?m(ok, zlib:deflateInit(Z1, default)),
-    ?m(_, zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, none)),
+    ?m(L when is_list(L), zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, none)),
     ?m(ok, zlib:deflateReset(Z1)),
     ?m(ok, zlib:deflateReset(Z1)),
     %% FIXME how do I make this go wrong??
@@ -212,9 +215,9 @@ api_deflateReset(Config) when is_list(Config) ->
 api_deflateParams(Config) when is_list(Config) ->
     Z1 = zlib:open(),
     ?m(ok, zlib:deflateInit(Z1, default)),
-    ?m(_, zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, none)),
+    ?m(L when is_list(L), zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, none)),
     ?m(ok, zlib:deflateParams(Z1, best_compression, huffman_only)),
-    ?m(_, zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, sync)),
+    ?m(L when is_list(L), zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, sync)),
     ?m(ok, zlib:close(Z1)).
 
 %% Test deflate.
@@ -231,11 +234,13 @@ api_deflate(Config) when is_list(Config) ->
     ?m(B when is_list(B), zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, full)),
     ?m(B when is_list(B), zlib:deflate(Z1, <<>>, finish)),
 
-    ?m(?BARG, zlib:deflate(gurka, <<1,1,1,1,1,1,1,1,1>>, full)),
-    ?m(?BARG, zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, asdj)),
-    ?m(?BARG, zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, 198)),
+    ?m(?EXIT(badarg), zlib:deflate(gurka, <<1,1,1,1,1,1,1,1,1>>, full)),
+
+    ?m(?EXIT(bad_flush_mode), zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, asdj)),
+    ?m(?EXIT(bad_flush_mode), zlib:deflate(Z1, <<1,1,1,1,1,1,1,1,1>>, 198)),
+
     %% Causes problems ERROR REPORT
-    ?m(?BARG, zlib:deflate(Z1, [asdj,asd], none)),
+    ?m(?EXIT(badarg), zlib:deflate(Z1, [asdj,asd], none)),
 
     ?m(ok, zlib:close(Z1)).
 
@@ -244,11 +249,11 @@ api_deflateEnd(Config) when is_list(Config) ->
     Z1 = zlib:open(),
     ?m(ok, zlib:deflateInit(Z1, default)),
     ?m(ok, zlib:deflateEnd(Z1)),
-    ?m({'EXIT', {einval,_}}, zlib:deflateEnd(Z1)), %% ??
-    ?m(?BARG, zlib:deflateEnd(gurka)),
+    ?m(?EXIT(not_initialized), zlib:deflateEnd(Z1)),
+    ?m(?EXIT(badarg), zlib:deflateEnd(gurka)),
     ?m(ok, zlib:deflateInit(Z1, default)),
     ?m(B when is_list(B), zlib:deflate(Z1, <<"Kilroy was here">>)),
-    ?m({'EXIT', {data_error,_}}, zlib:deflateEnd(Z1)),
+    ?m(?EXIT(data_error), zlib:deflateEnd(Z1)),
     ?m(ok, zlib:deflateInit(Z1, default)),
     ?m(B when is_list(B), zlib:deflate(Z1, <<"Kilroy was here">>)),
     ?m(B when is_list(B), zlib:deflate(Z1, <<"Kilroy was here">>, finish)),
@@ -259,9 +264,9 @@ api_deflateEnd(Config) when is_list(Config) ->
 %% Test inflateInit /1 and /2.
 api_inflateInit(Config) when is_list(Config) ->
     Z1 = zlib:open(),
-    ?m(?BARG, zlib:inflateInit(gurka)),
+    ?m(?EXIT(badarg), zlib:inflateInit(gurka)),
     ?m(ok, zlib:inflateInit(Z1)),
-    ?m({'EXIT',{einval,_}}, zlib:inflateInit(Z1, 15)), %% ??
+    ?m(?EXIT(already_initialized), zlib:inflateInit(Z1, 15)),
     lists:foreach(fun(Wbits) ->
 			  Z11 = zlib:open(),
 			  ?m(ok, zlib:inflateInit(Z11,Wbits)),
@@ -270,33 +275,34 @@ api_inflateInit(Config) when is_list(Config) ->
 			  ?m(ok,zlib:close(Z11)),
 			  ?m(ok,zlib:close(Z12))
 		  end, lists:seq(8,15)),
-    ?m(?BARG, zlib:inflateInit(gurka, -15)),
-    ?m(?BARG, zlib:inflateInit(Z1, 7)),
-    ?m(?BARG, zlib:inflateInit(Z1, -7)),
-    ?m(?BARG, zlib:inflateInit(Z1, 48)),
-    ?m(?BARG, zlib:inflateInit(Z1, -16)),
+    ?m(?EXIT(badarg), zlib:inflateInit(gurka, -15)),
+    ?m(?EXIT(bad_windowbits), zlib:inflateInit(Z1, 7)),
+    ?m(?EXIT(bad_windowbits), zlib:inflateInit(Z1, -7)),
+    ?m(?EXIT(bad_windowbits), zlib:inflateInit(Z1, 48)),
+    ?m(?EXIT(bad_windowbits), zlib:inflateInit(Z1, -16)),
     ?m(ok, zlib:close(Z1)).
 
 %% Test inflateSetDictionary.
 api_inflateSetDictionary(Config) when is_list(Config) ->
     Z1 = zlib:open(),
     ?m(ok, zlib:inflateInit(Z1)),
-    ?m(?BARG, zlib:inflateSetDictionary(gurka,<<1,1,1,1,1>>)),
-    ?m(?BARG, zlib:inflateSetDictionary(Z1,102)),
-    ?m(?BARG, zlib:inflateSetDictionary(Z1,gurka)),
+    ?m(?EXIT(badarg), zlib:inflateSetDictionary(gurka,<<1,1,1,1,1>>)),
+    ?m(?EXIT(badarg), zlib:inflateSetDictionary(Z1,102)),
+    ?m(?EXIT(badarg), zlib:inflateSetDictionary(Z1,gurka)),
     Dict = <<1,1,1,1,1>>,
-    ?m({'EXIT',{stream_error,_}}, zlib:inflateSetDictionary(Z1,Dict)),
+    ?m(?EXIT(stream_error), zlib:inflateSetDictionary(Z1,Dict)),
     ?m(ok, zlib:close(Z1)).
 
 %% Test inflateGetDictionary.
 api_inflateGetDictionary(Config) when is_list(Config) ->
     Z1 = zlib:open(),
+    zlib:inflateInit(Z1),
     IsOperationSupported =
         case catch zlib:inflateGetDictionary(Z1) of
-            {'EXIT',{einval,_}} -> true;
-            {'EXIT',{enotsup,_}} -> false
+            ?EXIT(not_supported) -> false;
+            _ -> true
         end,
-    _ = zlib:close(Z1),
+    zlib:close(Z1),
     api_inflateGetDictionary_if_supported(IsOperationSupported).
 
 api_inflateGetDictionary_if_supported(false) ->
@@ -306,64 +312,53 @@ api_inflateGetDictionary_if_supported(true) ->
     Z1 = zlib:open(),
     ?m(ok, zlib:deflateInit(Z1)),
     Dict = <<"foobar barfoo foo bar far boo">>,
-    ?m(_, zlib:deflateSetDictionary(Z1, Dict)),
+    Checksum = zlib:deflateSetDictionary(Z1, Dict),
     Payload = <<"foobarbarbar">>,
     Compressed = zlib:deflate(Z1, Payload, finish),
     ?m(ok, zlib:close(Z1)),
 
-    % Decompress and test dictionary extraction
+    % Decompress and test dictionary extraction with inflate/2
     Z2 = zlib:open(),
     ?m(ok, zlib:inflateInit(Z2)),
     ?m(<<>>, iolist_to_binary(zlib:inflateGetDictionary(Z2))),
-    ?m({'EXIT',{stream_error,_}}, zlib:inflateSetDictionary(Z2, Dict)),
-    ?m({'EXIT',{{need_dictionary,_},_}}, zlib:inflate(Z2, Compressed)),
+    ?m(?EXIT(stream_error), zlib:inflateSetDictionary(Z2, Dict)),
+    ?m(?EXIT({need_dictionary,Checksum}), zlib:inflate(Z2, Compressed)),
     ?m(ok, zlib:inflateSetDictionary(Z2, Dict)),
     ?m(Dict, iolist_to_binary(zlib:inflateGetDictionary(Z2))),
-    ?m(Payload, iolist_to_binary(zlib:inflate(Z2, Compressed))),
+    Payload = iolist_to_binary(zlib:inflate(Z2, [])),
     ?m(ok, zlib:close(Z2)),
-    ?m(?BARG, zlib:inflateSetDictionary(Z2, Dict)),
-    ok.
+    ?m(?EXIT(not_initialized), zlib:inflateSetDictionary(Z2, Dict)),
 
-%% Test inflateSync.
-api_inflateSync(Config) when is_list(Config) ->
-    {skip,"inflateSync/1 sucks"}.
-%%     Z1 = zlib:open(),
-%%     ?m(ok, zlib:deflateInit(Z1)),
-%%     B1list0 = zlib:deflate(Z1, "gurkan gurra ger galna tunnor", full),
-%%     B2 = zlib:deflate(Z1, "grodan boll", finish),
-%%     io:format("~p\n", [B1list0]),
-%%     io:format("~p\n", [B2]),
-%%     ?m(ok, zlib:deflateEnd(Z1)),
-%%     B1 = clobber(14, list_to_binary(B1list0)),
-%%     Compressed = list_to_binary([B1,B2]),
-%%     io:format("~p\n", [Compressed]),
-
-%%     ?m(ok, zlib:inflateInit(Z1)),
-%%     ?m(?BARG, zlib:inflateSync(gurka)),
-%%     ?m({'EXIT',{data_error,_}}, zlib:inflate(Z1, Compressed)),
-%%     ?m(ok, zlib:inflateSync(Z1)),
-%%     Ubs = zlib:inflate(Z1, []),
-%%     <<"grodan boll">> = list_to_binary(Ubs),
-%%     ?m(ok, zlib:close(Z1)).
-
-clobber(N, Bin) when is_binary(Bin) ->
-    T = list_to_tuple(binary_to_list(Bin)),
-    Byte = case element(N, T) of
-	       255 -> 254;
-	       B -> B+1
-	   end,
-    list_to_binary(tuple_to_list(setelement(N, T, Byte))).
+    %% ... And do the same for inflate/3
+    Z3 = zlib:open(),
+    ?m(ok, zlib:inflateInit(Z3)),
+    ?m(<<>>, iolist_to_binary(zlib:inflateGetDictionary(Z3))),
+    ?m(?EXIT(stream_error), zlib:inflateSetDictionary(Z3, Dict)),
+
+    {need_dictionary, Checksum, _Output = []} =
+        zlib:inflate(Z3, Compressed, [{exception_on_need_dict, false}]),
+
+    ?m(ok, zlib:inflateSetDictionary(Z3, Dict)),
+    ?m(Dict, iolist_to_binary(zlib:inflateGetDictionary(Z3))),
+
+    Payload = iolist_to_binary(
+        zlib:inflate(Z3, [], [{exception_on_need_dict, false}])),
+
+    ?m(ok, zlib:close(Z3)),
+    ?m(?EXIT(not_initialized), zlib:inflateSetDictionary(Z3, Dict)),
+
+    ok.
 
 %% Test inflateReset.
 api_inflateReset(Config) when is_list(Config) ->
     Z1 = zlib:open(),
     ?m(ok, zlib:inflateInit(Z1)),
-    ?m(?BARG, zlib:inflateReset(gurka)),
+    ?m(?EXIT(badarg), zlib:inflateReset(gurka)),
     ?m(ok, zlib:inflateReset(Z1)),
     ?m(ok, zlib:close(Z1)).
 
-%% Test inflate.
-api_inflate(Config) when is_list(Config) ->
+%% Test inflate/2
+api_inflate2(Config) when is_list(Config) ->
     Data = [<<1,2,2,3,3,3,4,4,4,4>>],
     Compressed = zlib:compress(Data),
     Z1 = zlib:open(),
@@ -373,12 +368,32 @@ api_inflate(Config) when is_list(Config) ->
     ?m(ok, zlib:inflateEnd(Z1)),
     ?m(ok, zlib:inflateInit(Z1)),
     ?m(Data, zlib:inflate(Z1, Compressed)),
-    ?m(?BARG, zlib:inflate(gurka, Compressed)),
-    ?m(?BARG, zlib:inflate(Z1, 4384)),
-    ?m(?BARG, zlib:inflate(Z1, [atom_list])),    
+    ?m(?EXIT(badarg), zlib:inflate(gurka, Compressed)),
+    ?m(?EXIT(badarg), zlib:inflate(Z1, 4384)),
+    ?m(?EXIT(badarg), zlib:inflate(Z1, [atom_list])),
+    ?m(ok, zlib:inflateEnd(Z1)),
+    ?m(ok, zlib:inflateInit(Z1)),
+    ?m(?EXIT(data_error), zlib:inflate(Z1, <<2,1,2,1,2>>)),
+    ?m(ok, zlib:close(Z1)).
+
+%% Test inflate/3; same as inflate/2 but with the default options inverted.
+api_inflate3(Config) when is_list(Config) ->
+    Data = [<<1,2,2,3,3,3,4,4,4,4>>],
+    Options = [{exception_on_need_dict, false}],
+    Compressed = zlib:compress(Data),
+    Z1 = zlib:open(),
+    ?m(ok, zlib:inflateInit(Z1)),
+    ?m([], zlib:inflate(Z1, <<>>, Options)),
+    ?m(Data, zlib:inflate(Z1, Compressed)),
+    ?m(ok, zlib:inflateEnd(Z1)),
+    ?m(ok, zlib:inflateInit(Z1)),
+    ?m(Data, zlib:inflate(Z1, Compressed, Options)),
+    ?m(?EXIT(badarg), zlib:inflate(gurka, Compressed, Options)),
+    ?m(?EXIT(badarg), zlib:inflate(Z1, 4384, Options)),
+    ?m(?EXIT(badarg), zlib:inflate(Z1, [atom_list], Options)),
     ?m(ok, zlib:inflateEnd(Z1)),
     ?m(ok, zlib:inflateInit(Z1)),
-    ?m({'EXIT',{data_error,_}}, zlib:inflate(Z1, <<2,1,2,1,2>>)), 
+    ?m(?EXIT(data_error), zlib:inflate(Z1, <<2,1,2,1,2>>, Options)),
     ?m(ok, zlib:close(Z1)).
 
 %% Test inflateChunk.
@@ -388,69 +403,109 @@ api_inflateChunk(Config) when is_list(Config) ->
     Part1 = binary:part(Data, 0, ChunkSize),
     Part2 = binary:part(Data, ChunkSize, ChunkSize),
     Part3 = binary:part(Data, ChunkSize * 2, ChunkSize),
+
     Compressed = zlib:compress(Data),
     Z1 = zlib:open(),
+
     zlib:setBufSize(Z1, ChunkSize),
+
     ?m(ok, zlib:inflateInit(Z1)),
-    ?m([], zlib:inflateChunk(Z1, <<>>)),
-    ?m({more, Part1}, zlib:inflateChunk(Z1, Compressed)),
-    ?m({more, Part2}, zlib:inflateChunk(Z1)),
-    ?m(Part3, zlib:inflateChunk(Z1)),
-    ?m(ok, zlib:inflateEnd(Z1)),
 
+    0 = iolist_size(zlib:inflateChunk(Z1, <<>>)),
+
+    {more, Part1AsIOList} = zlib:inflateChunk(Z1, Compressed),
+    {more, Part2AsIOList} = zlib:inflateChunk(Z1),
+    {more, Part3AsIOList} = zlib:inflateChunk(Z1),
+
+    [] = zlib:inflateChunk(Z1),
+    [] = zlib:inflateChunk(Z1),
+    [] = zlib:inflateChunk(Z1),
+
+    ?m(Part1, iolist_to_binary(Part1AsIOList)),
+    ?m(Part2, iolist_to_binary(Part2AsIOList)),
+    ?m(Part3, iolist_to_binary(Part3AsIOList)),
+
+    ?m(ok, zlib:inflateEnd(Z1)),
     ?m(ok, zlib:inflateInit(Z1)),
-    ?m({more, Part1}, zlib:inflateChunk(Z1, Compressed)),
+
+    ?m({more, Part1AsIOList}, zlib:inflateChunk(Z1, Compressed)),
 
     ?m(ok, zlib:inflateReset(Z1)),
 
-    zlib:setBufSize(Z1, size(Data)),
-    ?m(Data, zlib:inflateChunk(Z1, Compressed)),
-    ?m(ok, zlib:inflateEnd(Z1)),
+    zlib:setBufSize(Z1, byte_size(Data) + 1),
+
+    DataAsIOList = zlib:inflateChunk(Z1, Compressed),
+    ?m(Data, iolist_to_binary(DataAsIOList)),
 
+    ?m(ok, zlib:inflateEnd(Z1)),
     ?m(ok, zlib:inflateInit(Z1)),
-    ?m(?BARG, zlib:inflateChunk(gurka, Compressed)),
-    ?m(?BARG, zlib:inflateChunk(Z1, 4384)),
-    ?m({'EXIT',{data_error,_}}, zlib:inflateEnd(Z1)),
+
+    ?m(?EXIT(badarg), zlib:inflateChunk(gurka, Compressed)),
+    ?m(?EXIT(badarg), zlib:inflateChunk(Z1, 4384)),
+
+    ?m(?EXIT(data_error), zlib:inflateEnd(Z1)),
+
     ?m(ok, zlib:close(Z1)).
 
-%% Test inflateEnd.
-api_inflateEnd(Config) when is_list(Config) ->
+%% Test safeInflate as a mirror of inflateChunk, but ignore the stuff about
+%% exact chunk sizes.
+api_safeInflate(Config) when is_list(Config) ->
+    Data = << <<(I rem 150)>> || I <- lists:seq(1, 20 bsl 10) >>,
+    Compressed = zlib:compress(Data),
     Z1 = zlib:open(),
-    ?m({'EXIT',{einval,_}}, zlib:inflateEnd(Z1)), 
-    ?m(ok, zlib:inflateInit(Z1)),
-    ?m(?BARG, zlib:inflateEnd(gurka)),
-    ?m({'EXIT',{data_error,_}}, zlib:inflateEnd(Z1)),
-    ?m({'EXIT',{einval,_}}, zlib:inflateEnd(Z1)), 
+
     ?m(ok, zlib:inflateInit(Z1)),
-    ?m(B when is_list(B), zlib:inflate(Z1, zlib:compress("abc"))),
+
+    SafeInflateLoop =
+        fun
+            Loop({continue, Chunk}, Output) ->
+                Loop(zlib:safeInflate(Z1, []), [Output, Chunk]);
+            Loop({finished, Chunk}, Output) ->
+                [Output, Chunk]
+        end,
+
+    Decompressed = SafeInflateLoop(zlib:safeInflate(Z1, Compressed), []),
+    Data = iolist_to_binary(Decompressed),
+
     ?m(ok, zlib:inflateEnd(Z1)),
-    ?m(ok, zlib:close(Z1)).
+    ?m(ok, zlib:inflateInit(Z1)),
 
-%% Test getBufsz.
-api_getBufsz(Config) when is_list(Config) ->
-    Z1 = zlib:open(),
-    ?m(Val when is_integer(Val), zlib:getBufSize(Z1)),
-    ?m(?BARG, zlib:getBufSize(gurka)),
-    ?m(ok, zlib:close(Z1)).
+    {continue, Partial} = zlib:safeInflate(Z1, Compressed),
+    PBin = iolist_to_binary(Partial),
+    PSize = byte_size(PBin),
+    <<PBin:PSize/binary, Rest/binary>> = Data,
 
-%% Test setBufsz.
-api_setBufsz(Config) when is_list(Config) ->
-    Z1 = zlib:open(),
-    ?m(?BARG, zlib:setBufSize(Z1, gurka)),
-    ?m(?BARG, zlib:setBufSize(gurka, 1232330)),
-    Sz = ?m( Val when is_integer(Val), zlib:getBufSize(Z1)),
-    ?m(ok, zlib:setBufSize(Z1, Sz*2)),
-    DSz = Sz*2,
-    ?m(DSz, zlib:getBufSize(Z1)),
+    ?m(ok, zlib:inflateReset(Z1)),
+
+    {continue, Partial} = zlib:safeInflate(Z1, Compressed),
+    PBin = iolist_to_binary(Partial),
+    PSize = byte_size(PBin),
+    <<PBin:PSize/binary, Rest/binary>> = Data,
+
+    ?m(ok, zlib:inflateReset(Z1)),
+
+    SafeInflateLoop(zlib:safeInflate(Z1, Compressed), []),
+
+    ?m({finished, []}, zlib:safeInflate(Z1, Compressed)),
+    ?m({finished, []}, zlib:safeInflate(Z1, Compressed)),
+
+    ?m(ok, zlib:inflateReset(Z1)),
+    ?m(?EXIT(badarg), zlib:safeInflate(gurka, Compressed)),
+    ?m(?EXIT(badarg), zlib:safeInflate(Z1, 4384)),
+    ?m(?EXIT(data_error), zlib:inflateEnd(Z1)),
     ?m(ok, zlib:close(Z1)).
 
-%%% Debug function ??
-%% Test getQSize.
-api_getQSize(Config) when is_list(Config) ->
+%% Test inflateEnd.
+api_inflateEnd(Config) when is_list(Config) ->
     Z1 = zlib:open(),
-    Q = ?m(Val when is_integer(Val), zlib:getQSize(Z1)),
-    io:format("QSize ~p ~n", [Q]),
-    ?m(?BARG, zlib:getQSize(gurka)),
+    ?m(?EXIT(not_initialized), zlib:inflateEnd(Z1)),
+    ?m(ok, zlib:inflateInit(Z1)),
+    ?m(?EXIT(badarg), zlib:inflateEnd(gurka)),
+    ?m(?EXIT(data_error), zlib:inflateEnd(Z1)),
+    ?m(?EXIT(not_initialized), zlib:inflateEnd(Z1)),
+    ?m(ok, zlib:inflateInit(Z1)),
+    ?m(B when is_list(B), zlib:inflate(Z1, zlib:compress("abc"))),
+    ?m(ok, zlib:inflateEnd(Z1)),
     ?m(ok, zlib:close(Z1)).
 
 %% Test crc32.
@@ -458,8 +513,8 @@ api_crc32(Config) when is_list(Config) ->
     Z1 = zlib:open(),
     ?m(ok, zlib:deflateInit(Z1,best_speed,deflated,-15,8,default)),
     Bin = <<1,1,1,1,1,1,1,1,1>>,
-    Compressed1 = ?m(_, zlib:deflate(Z1, Bin, none)),
-    Compressed2 = ?m(_, zlib:deflate(Z1, <<>>, finish)),
+    Compressed1 = ?m(L when is_list(L), zlib:deflate(Z1, Bin, none)),
+    Compressed2 = ?m(L when is_list(L), zlib:deflate(Z1, <<>>, finish)),
     Compressed = list_to_binary(Compressed1 ++ Compressed2),
     CRC1 = ?m( CRC1 when is_integer(CRC1), zlib:crc32(Z1)),
     ?m(CRC1 when is_integer(CRC1), zlib:crc32(Z1,Bin)),
@@ -467,15 +522,15 @@ api_crc32(Config) when is_list(Config) ->
     ?m(CRC2 when is_integer(CRC2), zlib:crc32(Z1,Compressed)),
     CRC2 = ?m(CRC2 when is_integer(CRC2), zlib:crc32(Z1,0,Compressed)),
     ?m(CRC3 when CRC2 /= CRC3, zlib:crc32(Z1,234,Compressed)),
-    ?m(?BARG, zlib:crc32(gurka)),
-    ?m(?BARG, zlib:crc32(Z1, not_a_binary)),
-    ?m(?BARG, zlib:crc32(gurka, <<1,1,2,4,4>>)),
-    ?m(?BARG, zlib:crc32(Z1, 2298929, not_a_binary)),
-    ?m(?BARG, zlib:crc32(Z1, not_an_int, <<123,123,123,35,231>>)),
-    ?m(?BARG, zlib:crc32_combine(Z1, not_an_int, 123123, 123)),
-    ?m(?BARG, zlib:crc32_combine(Z1, noint, 123123, 123)),
-    ?m(?BARG, zlib:crc32_combine(Z1, 123123, noint, 123)),
-    ?m(?BARG, zlib:crc32_combine(Z1, 123123, 123, noint)),
+    ?m(?EXIT(badarg), zlib:crc32(gurka)),
+    ?m(?EXIT(badarg), zlib:crc32(Z1, not_a_binary)),
+    ?m(?EXIT(badarg), zlib:crc32(gurka, <<1,1,2,4,4>>)),
+    ?m(?EXIT(badarg), zlib:crc32(Z1, 2298929, not_a_binary)),
+    ?m(?EXIT(badarg), zlib:crc32(Z1, not_an_int, <<123,123,123,35,231>>)),
+    ?m(?EXIT(badarg), zlib:crc32_combine(Z1, not_an_int, 123123, 123)),
+    ?m(?EXIT(badarg), zlib:crc32_combine(Z1, noint, 123123, 123)),
+    ?m(?EXIT(badarg), zlib:crc32_combine(Z1, 123123, noint, 123)),
+    ?m(?EXIT(badarg), zlib:crc32_combine(Z1, 123123, 123, noint)),
     ?m(ok, zlib:deflateEnd(Z1)),
     ?m(ok, zlib:close(Z1)).    
 
@@ -484,74 +539,124 @@ api_adler32(Config) when is_list(Config) ->
     Z1 = zlib:open(),
     ?m(ok, zlib:deflateInit(Z1,best_speed,deflated,-15,8,default)),
     Bin = <<1,1,1,1,1,1,1,1,1>>,
-    Compressed1 = ?m(_, zlib:deflate(Z1, Bin, none)),
-    Compressed2 = ?m(_, zlib:deflate(Z1, <<>>, finish)),
+    Compressed1 = ?m(L when is_list(L), zlib:deflate(Z1, Bin, none)),
+    Compressed2 = ?m(L when is_list(L), zlib:deflate(Z1, <<>>, finish)),
     Compressed = list_to_binary(Compressed1 ++ Compressed2),
     ?m(ADLER1 when is_integer(ADLER1), zlib:adler32(Z1,Bin)),
     ?m(ADLER1 when is_integer(ADLER1), zlib:adler32(Z1,binary_to_list(Bin))),
     ADLER2 = ?m(ADLER2 when is_integer(ADLER2), zlib:adler32(Z1,Compressed)),
     ?m(ADLER2 when is_integer(ADLER2), zlib:adler32(Z1,1,Compressed)),
     ?m(ADLER3 when ADLER2 /= ADLER3, zlib:adler32(Z1,234,Compressed)),
-    ?m(?BARG, zlib:adler32(Z1, not_a_binary)),
-    ?m(?BARG, zlib:adler32(gurka, <<1,1,2,4,4>>)),
-    ?m(?BARG, zlib:adler32(Z1, 2298929, not_a_binary)),
-    ?m(?BARG, zlib:adler32(Z1, not_an_int, <<123,123,123,35,231>>)),
-    ?m(?BARG, zlib:adler32_combine(Z1, noint, 123123, 123)),
-    ?m(?BARG, zlib:adler32_combine(Z1, 123123, noint, 123)),
-    ?m(?BARG, zlib:adler32_combine(Z1, 123123, 123, noint)),
+    ?m(?EXIT(badarg), zlib:adler32(Z1, not_a_binary)),
+    ?m(?EXIT(badarg), zlib:adler32(gurka, <<1,1,2,4,4>>)),
+    ?m(?EXIT(badarg), zlib:adler32(Z1, 2298929, not_a_binary)),
+    ?m(?EXIT(badarg), zlib:adler32(Z1, not_an_int, <<123,123,123,35,231>>)),
+    ?m(?EXIT(badarg), zlib:adler32_combine(Z1, noint, 123123, 123)),
+    ?m(?EXIT(badarg), zlib:adler32_combine(Z1, 123123, noint, 123)),
+    ?m(?EXIT(badarg), zlib:adler32_combine(Z1, 123123, 123, noint)),
     ?m(ok, zlib:deflateEnd(Z1)),
     ?m(ok, zlib:close(Z1)).    
 
 %% Test compress.
 api_un_compress(Config) when is_list(Config) ->
-    ?m(?BARG,zlib:compress(not_a_binary)),
+    ?m(?EXIT(badarg),zlib:compress(not_a_binary)),
     Bin = <<1,11,1,23,45>>,
     Comp = zlib:compress(Bin),
-    ?m(?BARG,zlib:uncompress(not_a_binary)),
-    ?m({'EXIT',{data_error,_}}, zlib:uncompress(<<171,171,171,171,171>>)),
-    ?m({'EXIT',{data_error,_}}, zlib:uncompress(<<>>)),
-    ?m({'EXIT',{data_error,_}}, zlib:uncompress(<<120>>)),
-    ?m({'EXIT',{data_error,_}}, zlib:uncompress(<<120,156>>)),
-    ?m({'EXIT',{data_error,_}}, zlib:uncompress(<<120,156,3>>)),
-    ?m({'EXIT',{data_error,_}}, zlib:uncompress(<<120,156,3,0>>)),
-    ?m({'EXIT',{data_error,_}}, zlib:uncompress(<<0,156,3,0,0,0,0,1>>)),
+    ?m(?EXIT(badarg),zlib:uncompress(not_a_binary)),
+    ?m(?EXIT(data_error), zlib:uncompress(<<171,171,171,171,171>>)),
+    ?m(?EXIT(data_error), zlib:uncompress(<<>>)),
+    ?m(?EXIT(data_error), zlib:uncompress(<<120>>)),
+    ?m(?EXIT(data_error), zlib:uncompress(<<120,156>>)),
+    ?m(?EXIT(data_error), zlib:uncompress(<<120,156,3>>)),
+    ?m(?EXIT(data_error), zlib:uncompress(<<120,156,3,0>>)),
+    ?m(?EXIT(data_error), zlib:uncompress(<<0,156,3,0,0,0,0,1>>)),
     ?m(Bin, zlib:uncompress(binary_to_list(Comp))),
     ?m(Bin, zlib:uncompress(Comp)).
 
 %% Test zip.
 api_un_zip(Config) when is_list(Config) ->
-    ?m(?BARG,zlib:zip(not_a_binary)),
+    ?m(?EXIT(badarg),zlib:zip(not_a_binary)),
     Bin = <<1,11,1,23,45>>,
     Comp = zlib:zip(Bin),
     ?m(Comp, zlib:zip(binary_to_list(Bin))),
-    ?m(?BARG,zlib:unzip(not_a_binary)),
-    ?m({'EXIT',{data_error,_}}, zlib:unzip(<<171,171,171,171,171>>)),
-    ?m({'EXIT',{data_error,_}}, zlib:unzip(<<>>)),
+    ?m(?EXIT(badarg),zlib:unzip(not_a_binary)),
+    ?m(?EXIT(data_error), zlib:unzip(<<171,171,171,171,171>>)),
+    ?m(?EXIT(data_error), zlib:unzip(<<>>)),
     ?m(Bin, zlib:unzip(Comp)),
     ?m(Bin, zlib:unzip(binary_to_list(Comp))),
 
     %% OTP-6396
-    B = <<131,104,19,100,0,13,99,95,99,105,100,95,99,115,103,115,110,95,50,97,1,107,0,4,208,161,246,29,107,0,3,237,166,224,107,0,6,66,240,153,0,2,10,1,0,8,97,116,116,97,99,104,101,100,104,2,100,0,22,117,112,100,97,116,101,95,112,100,112,95,99,111,110,116,101,120,116,95,114,101,113,107,0,114,69,3,12,1,11,97,31,113,150,64,104,132,61,64,104,12,3,197,31,113,150,64,104,132,61,64,104,12,1,11,97,31,115,150,64,104,116,73,64,104,0,0,0,0,0,0,65,149,16,61,65,149,16,61,1,241,33,4,5,0,33,4,4,10,6,10,181,4,10,6,10,181,38,15,99,111,109,109,97,110,100,1,114,45,97,112,110,45,49,3,99,111,109,5,109,110,99,57,57,6,109,99,99,50,52,48,4,103,112,114,115,8,0,104,2,104,2,100,0,8,97,99,116,105,118,97,116,101,104,23,100,0,11,112,100,112,95,99,111,110,116,1,120,116,100,0,7,112,114,105,109,97,114,121,97,1,100,0,9,117,110,100,101,102,105,110,101,100,97,1,97,4,97,4,97,7,100,0,9,117,110,100,101,102,105,110,101,100,100,0,9,117,110,100,101,102,105,110,10100,100,0,9,117,110,100,101,102,105,110,101,100,100,0,5,102,97,108,115,101,100,0,9,117,110,100,101,102,105,110,101,100,100,0,9,117,110,100,101,102,105,110,101,100,100,0,9,117,110,100,101,102,105,1,101,100,97,0,100,0,9,117,110,100,101,102,105,110,101,100,107,0,4,16,0,1,144,107,0,4,61,139,186,181,107,0,4,10,8,201,49,100,0,9,117,110,100,101,102,105,110,101,100,100,0,9,117,110,100,101,102,105,0,101,100,100,0,9,117,110,100,101,102,105,110,101,100,104,2,104,3,98,0,0,7,214,97,11,97,20,104,3,97,17,97,16,97,21,106,108,0,0,0,3,104,2,97,1,104,2,104,3,98,0,0,7,214,97,11,97,20,104,3,97,17,97,167,20,104,2,97,4,104,2,104,3,98,0,0,7,214,97,11,97,20,104,3,97,17,97,16,97,21,104,2,97,10,104,2,104,3,98,0,0,7,214,97,11,97,20,104,3,97,17,97,16,97,26,106,100,0,5,118,101,114,57,57,100,0,9,117,110,0,101,102,105,110,101,100,107,0,2,0,244,107,0,4,10,6,102,195,107,0,4,10,6,102,195,100,0,9,117,110,100,101,102,105,110,101,100,100,0,9,117,110,100,101,102,105,110,101,100,107,0,125,248,143,0,203,25115,157,116,65,185,65,172,55,87,164,88,225,50,203,251,115,157,116,65,185,65,172,55,87,164,88,225,50,0,0,82,153,50,0,200,98,87,148,237,193,185,65,149,167,69,144,14,16,153,50,3,81,70,94,13,109,193,1,120,5,181,113,198,118,50,3,81,70,94,13,109,193,185,120,5,181,113,198,118,153,3,81,70,94,13,109,193,185,120,5,181,113,198,118,153,50,16,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,113,92,2,119,128,0,0,108,0,0,1,107,0,114,69,3,12,1,11,97,31,113,150,64,104,132,61,64,104,12,3,11,97,31,113,150,64,104,132,61,64,104,12,1,11,97,31,115,150,64,104,116,73,64,104,0,0,0,0,0,0,65,149,16,61,65,149,16,61,1,241,33,4,0,33,4,4,10,6,10,181,4,10,6,10,181,38,15,99,111,109,109,97,110,100,101,114,45,97,112,110,45,49,3,99,111,109,5,109,110,99,57,57,6,109,99,99,50,52,48,4,103,112,114,115,8,0,106>>,
+    B =
+        <<131,104,19,100,0,13,99,95,99,105,100,95,99,115,103,115,110,95,50,97,
+          1,107,0,4,208,161,246,29,107,0,3,237,166,224,107,0,6,66,240,153,0,2,
+          10,1,0,8,97,116,116,97,99,104,101,100,104,2,100,0,22,117,112,100,97,
+          116,101,95,112,100,112,95,99,111,110,116,101,120,116,95,114,101,113,
+          107,0,114,69,3,12,1,11,97,31,113,150,64,104,132,61,64,104,12,3,197,
+          31,113,150,64,104,132,61,64,104,12,1,11,97,31,115,150,64,104,116,73,
+          64,104,0,0,0,0,0,0,65,149,16,61,65,149,16,61,1,241,33,4,5,0,33,4,4,10
+          ,6,10,181,4,10,6,10,181,38,15,99,111,109,109,97,110,100,1,114,45,97,
+          112,110,45,49,3,99,111,109,5,109,110,99,57,57,6,109,99,99,50,52,48,4,
+          103,112,114,115,8,0,104,2,104,2,100,0,8,97,99,116,105,118,97,116,101,
+          104,23,100,0,11,112,100,112,95,99,111,110,116,1,120,116,100,0,7,112,
+          114,105,109,97,114,121,97,1,100,0,9,117,110,100,101,102,105,110,101,
+          100,97,1,97,4,97,4,97,7,100,0,9,117,110,100,101,102,105,110,101,100,
+          100,0,9,117,110,100,101,102,105,110,10100,100,0,9,117,110,100,101,
+          102,105,110,101,100,100,0,5,102,97,108,115,101,100,0,9,117,110,100,
+          101,102,105,110,101,100,100,0,9,117,110,100,101,102,105,110,101,100,
+          100,0,9,117,110,100,101,102,105,1,101,100,97,0,100,0,9,117,110,100,
+          101,102,105,110,101,100,107,0,4,16,0,1,144,107,0,4,61,139,186,181,
+          107,0,4,10,8,201,49,100,0,9,117,110,100,101,102,105,110,101,100,100,
+          0,9,117,110,100,101,102,105,0,101,100,100,0,9,117,110,100,101,102,
+          105,110,101,100,104,2,104,3,98,0,0,7,214,97,11,97,20,104,3,97,17,97,
+          16,97,21,106,108,0,0,0,3,104,2,97,1,104,2,104,3,98,0,0,7,214,97,11,
+          97,20,104,3,97,17,97,167,20,104,2,97,4,104,2,104,3,98,0,0,7,214,97,
+          11,97,20,104,3,97,17,97,16,97,21,104,2,97,10,104,2,104,3,98,0,0,7,
+          214,97,11,97,20,104,3,97,17,97,16,97,26,106,100,0,5,118,101,114,57,
+          57,100,0,9,117,110,0,101,102,105,110,101,100,107,0,2,0,244,107,0,4,
+          10,6,102,195,107,0,4,10,6,102,195,100,0,9,117,110,100,101,102,105,
+          110,101,100,100,0,9,117,110,100,101,102,105,110,101,100,107,0,125,
+          248,143,0,203,25115,157,116,65,185,65,172,55,87,164,88,225,50,203,
+          251,115,157,116,65,185,65,172,55,87,164,88,225,50,0,0,82,153,50,0,
+          200,98,87,148,237,193,185,65,149,167,69,144,14,16,153,50,3,81,70,94,
+          13,109,193,1,120,5,181,113,198,118,50,3,81,70,94,13,109,193,185,120,
+          5,181,113,198,118,153,3,81,70,94,13,109,193,185,120,5,181,113,198,
+          118,153,50,16,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,113,92,2,119,128,0,0,
+          108,0,0,1,107,0,114,69,3,12,1,11,97,31,113,150,64,104,132,61,64,104,
+          12,3,11,97,31,113,150,64,104,132,61,64,104,12,1,11,97,31,115,150,64,
+          104,116,73,64,104,0,0,0,0,0,0,65,149,16,61,65,149,16,61,1,241,33,4,0,
+          33,4,4,10,6,10,181,4,10,6,10,181,38,15,99,111,109,109,97,110,100,101,
+          114,45,97,112,110,45,49,3,99,111,109,5,109,110,99,57,57,6,109,99,99,
+          50,52,48,4,103,112,114,115,8,0,106>>,
+
     Z = zlib:zip(B),
     ?m(B, zlib:unzip(Z)).
 
 %% Test gunzip.
 api_g_un_zip(Config) when is_list(Config) ->
-    ?m(?BARG,zlib:gzip(not_a_binary)),
+    ?m(?EXIT(badarg),zlib:gzip(not_a_binary)),
     Bin = <<1,11,1,23,45>>,
     Comp = zlib:gzip(Bin),
+
     ?m(Comp, zlib:gzip(binary_to_list(Bin))),
-    ?m(?BARG, zlib:gunzip(not_a_binary)),
-    ?m(?DATA_ERROR, zlib:gunzip(<<171,171,171,171,171>>)),
-    ?m(?DATA_ERROR, zlib:gunzip(<<>>)),
+    ?m(?EXIT(badarg), zlib:gunzip(not_a_binary)),
+    ?m(?EXIT(data_error), zlib:gunzip(<<171,171,171,171,171>>)),
+    ?m(?EXIT(data_error), zlib:gunzip(<<>>)),
     ?m(Bin, zlib:gunzip(Comp)),
     ?m(Bin, zlib:gunzip(binary_to_list(Comp))),
 
+    %% RFC 1952:
+    %%
+    %% "A gzip file consists of a series of "members" (compressed data
+    %% sets). [...] The members simply appear one after another in the file,
+    %% with no additional information before, between, or after them."
+    Concatenated = <<Bin/binary, Bin/binary>>,
+    ?m(Concatenated, zlib:gunzip([Comp, Comp])),
+
     %% Bad CRC; bad length.
     BadCrc = bad_crc_data(),
-    ?m({'EXIT',{data_error,_}},(catch zlib:gunzip(BadCrc))),
+    ?m(?EXIT(data_error),(catch zlib:gunzip(BadCrc))),
     BadLen = bad_len_data(),
-    ?m({'EXIT',{data_error,_}},(catch zlib:gunzip(BadLen))),
+    ?m(?EXIT(data_error),(catch zlib:gunzip(BadLen))),
     ok.
 
 bad_crc_data() ->
@@ -594,30 +699,15 @@ intro(Config) when is_list(Config) ->
 large_deflate(Config) when is_list(Config) ->
     large_deflate_do().
 large_deflate_do() ->
-    Z = zlib:open(),
-    Plain = rand_bytes(zlib:getBufSize(Z)*5),
-    ok = zlib:deflateInit(Z),
-    _ZlibHeader = zlib:deflate(Z, [], full),
-    Deflated = zlib:deflate(Z, Plain, full),
-    ?m(ok, zlib:close(Z)),
-    ?m(Plain, zlib:unzip(list_to_binary([Deflated, 3, 0]))).
-
-rand_bytes(Sz) ->
-    L = <<8,2,3,6,1,2,3,2,3,4,8,7,3,7,2,3,4,7,5,8,9,3>>,
-    rand_bytes(erlang:md5(L),Sz).
-
-rand_bytes(Bin, Sz) when byte_size(Bin) >= Sz ->
-    <<Res:Sz/binary, _/binary>> = Bin,
-    Res;
-rand_bytes(Bin, Sz) ->
-    rand_bytes(<<(erlang:md5(Bin))/binary, Bin/binary>>, Sz).
-
+    Plain = gen_determ_rand_bytes(64 bsl 10),
+    Deflated = zlib:zip(Plain),
+    ?m(Plain, zlib:unzip(Deflated)).
 
 %% Test a standard compressed zip file.
 zip_usage(Config) when is_list(Config) ->
     zip_usage(zip_usage({get_arg,Config}));
 zip_usage({get_arg,Config}) ->
-    Out = conf(data_dir,Config),
+    Out = get_data_dir(Config),
     {ok,ZIP} = file:read_file(filename:join(Out,"zipdoc.zip")),
     {ok,ORIG} = file:read_file(filename:join(Out,"zipdoc")),
     {run,ZIP,ORIG};
@@ -688,7 +778,7 @@ zip_usage({run,ZIP,ORIG}) ->
 gz_usage(Config) when is_list(Config) ->
     gz_usage(gz_usage({get_arg,Config}));
 gz_usage({get_arg,Config}) ->
-    Out = conf(data_dir,Config),
+    Out = get_data_dir(Config),
     {ok,GZIP} = file:read_file(filename:join(Out,"zipdoc.1.gz")),
     {ok,ORIG} = file:read_file(filename:join(Out,"zipdoc")),
     {ok,GZIP2} = file:read_file(filename:join(Out,"zipdoc.txt.gz")),
@@ -709,7 +799,7 @@ gz_usage2(Config) ->
     case os:find_executable("gzip") of
 	Name when is_list(Name) ->
 	    Z = zlib:open(),
-	    Out = conf(data_dir,Config),
+	    Out = get_data_dir(Config),
 	    {ok,ORIG} = file:read_file(filename:join(Out,"zipdoc")),
 	    Compressed = zlib:gzip(ORIG),
 	    GzOutFile = filename:join(Out,"out.gz"),
@@ -737,7 +827,7 @@ gz_usage2(Config) ->
 compress_usage(Config) when is_list(Config) ->
     compress_usage(compress_usage({get_arg,Config}));
 compress_usage({get_arg,Config}) ->
-    Out = conf(data_dir,Config),
+    Out = get_data_dir(Config),
     {ok,C1} = file:read_file(filename:join(Out,"png-compressed.zlib")),
     {run,C1};
 compress_usage({run,C1}) ->
@@ -792,7 +882,7 @@ compress_usage({run,C1}) ->
 crc(Config) when is_list(Config) ->
     crc(crc({get_arg,Config}));
 crc({get_arg,Config}) ->
-    Out = conf(data_dir,Config),
+    Out = get_data_dir(Config),
     {ok,C1} = file:read_file(filename:join(Out,"zipdoc")),
     {run,C1};
 crc({run,C1}) ->
@@ -821,7 +911,7 @@ crc({run,C1}) ->
 adler(Config) when is_list(Config) ->
     adler(adler({get_arg,Config}));
 adler({get_arg,Config}) ->
-    Out = conf(data_dir,Config),
+    Out = get_data_dir(Config),
     File1 = filename:join(Out,"zipdoc"),
     {ok,C1} = file:read_file(File1),
     {run,C1};
@@ -869,10 +959,14 @@ dictionary_usage({run}) ->
     %% Now uncompress.
     Z2 = zlib:open(),
     ?m(ok, zlib:inflateInit(Z2)),
-    {'EXIT',{{need_dictionary,DictID},_}} = (catch zlib:inflate(Z2, Compressed)),
+
+    ?m(?EXIT({need_dictionary, DictID}), zlib:inflate(Z2, Compressed)),
+
     ?m(ok, zlib:inflateSetDictionary(Z2, Dict)),
     ?m(ok, zlib:inflateSetDictionary(Z2, binary_to_list(Dict))),
+
     Uncompressed = ?m(B when is_list(B), zlib:inflate(Z2, [])),
+
     ?m(ok, zlib:inflateEnd(Z2)),
     ?m(ok, zlib:close(Z2)),    
     ?m(Data, list_to_binary(Uncompressed)).
@@ -882,6 +976,49 @@ split_bin(<<Part:1997/binary,Rest/binary>>, Acc) ->
 split_bin(Last,Acc) ->
     lists:reverse([Last|Acc]).
 
+only_allow_owner(Config) when is_list(Config) ->
+    Z = zlib:open(),
+    Owner = self(),
+
+    ?m(ok, zlib:inflateInit(Z)),
+    ?m(ok, zlib:inflateReset(Z)),
+
+    {Pid, Ref} = spawn_monitor(
+        fun() ->
+            ?m(?EXIT(not_on_controlling_process), zlib:inflateReset(Z)),
+            Owner ! '$transfer_ownership',
+            receive
+                '$ownership_transferred' ->
+                    ?m(ok, zlib:inflateReset(Z))
+            after 200 ->
+                ct:fail("Never received transfer signal.")
+            end
+        end),
+    ownership_transfer_check(Z, Pid, Ref).
+
+ownership_transfer_check(Z, WorkerPid, Ref) ->
+    receive
+        '$transfer_ownership' ->
+            zlib:set_controlling_process(Z, WorkerPid),
+            WorkerPid ! '$ownership_transferred',
+            ownership_transfer_check(Z, WorkerPid, Ref);
+        {'DOWN', Ref, process, WorkerPid, normal} ->
+            ok;
+        {'DOWN', Ref, process, WorkerPid, Reason} ->
+            ct:fail("Spawned worker crashed with reason ~p.", [Reason])
+    after 200 ->
+        ct:fail("Spawned worker timed out.")
+    end.
+
+sub_heap_binaries(Config) when is_list(Config) ->
+    Compressed = zlib:compress(<<"gurka">>),
+    ConfLen = erlang:length(Config),
+
+    HeapBin = <<ConfLen:8/integer, Compressed/binary>>,
+    <<_:8/integer, SubHeapBin/binary>> = HeapBin,
+
+    ?m(<<"gurka">>, zlib:uncompress(SubHeapBin)),
+    ok.
 
 %% Check concurrent access to zlib driver.
 smp(Config) ->
@@ -889,20 +1026,23 @@ smp(Config) ->
     io:format("smp starting ~p workers\n",[NumOfProcs]),
 
     %% Tests to run in parallel.
-    Funcs = [zip_usage, gz_usage, compress_usage, dictionary_usage,
-             crc, adler],
+    Funcs =
+        [zip_usage, gz_usage, compress_usage, dictionary_usage,
+            crc, adler],
 
     %% We get all function arguments here to avoid repeated parallel
     %% file read access.
-    FnAList = lists:map(fun(F) -> {F,?MODULE:F({get_arg,Config})}
-                        end, Funcs),
+    UsageArgs =
+        list_to_tuple([{F, ?MODULE:F({get_arg,Config})} || F <- Funcs]),
+    Parent = self(),
 
-    Pids = [spawn_link(?MODULE, worker, [rand:uniform(9999),
-                                         list_to_tuple(FnAList),
-                                         self()])
-            || _ <- lists:seq(1,NumOfProcs)],
-    wait_pids(Pids).
+    WorkerFun =
+        fun() ->
+            worker(rand:uniform(9999), UsageArgs, Parent)
+        end,
 
+    Pids = [spawn_link(WorkerFun) || _ <- lists:seq(1, NumOfProcs)],
+    wait_pids(Pids).
 
 worker(Seed, FnATpl, Parent) ->
     io:format("smp worker ~p, seed=~p~n",[self(),Seed]),
@@ -993,43 +1133,98 @@ otp_9981(Config) when is_list(Config) ->
     Ports = lists:sort(erlang:ports()),
     ok.
 
+-define(BENCH_SIZE, (16 bsl 20)).
+
+-define(DECOMPRESS_BENCH(Name, What, Data),
+        Name(Config) when is_list(Config) ->
+        Uncompressed = Data,
+        Compressed = zlib:compress(Uncompressed),
+        What(Compressed, byte_size(Uncompressed))).
+
+-define(COMPRESS_BENCH(Name, What, Data),
+        Name(Config) when is_list(Config) ->
+        Compressed = Data,
+        What(Compressed, byte_size(Compressed))).
+
+?DECOMPRESS_BENCH(inflate_bench_zeroed, throughput_bench_inflate,
+    <<0:(8 * ?BENCH_SIZE)>>).
+?DECOMPRESS_BENCH(inflate_bench_rand, throughput_bench_inflate,
+    gen_determ_rand_bytes(?BENCH_SIZE)).
+
+?DECOMPRESS_BENCH(chunk_bench_zeroed, throughput_bench_chunk,
+    <<0:(8 * ?BENCH_SIZE)>>).
+?DECOMPRESS_BENCH(chunk_bench_rand, throughput_bench_chunk,
+    gen_determ_rand_bytes(?BENCH_SIZE)).
 
+?COMPRESS_BENCH(deflate_bench_zeroed, throughput_bench_deflate,
+    <<0:(8 * ?BENCH_SIZE)>>).
+?COMPRESS_BENCH(deflate_bench_rand, throughput_bench_deflate,
+    gen_determ_rand_bytes(?BENCH_SIZE)).
+
+throughput_bench_inflate(Compressed, Size) ->
+    Z = zlib:open(),
+    zlib:inflateInit(Z),
+
+    submit_throughput_results(Size,
+        fun() ->
+            zlib:inflate(Z, Compressed)
+        end).
+
+throughput_bench_deflate(Uncompressed, Size) ->
+    Z = zlib:open(),
+    zlib:deflateInit(Z),
+
+    submit_throughput_results(Size,
+        fun() ->
+            zlib:deflate(Z, Uncompressed, finish)
+        end).
+
+throughput_bench_chunk(Compressed, Size) ->
+    Z = zlib:open(),
+    zlib:inflateInit(Z),
+
+    ChunkLoop =
+        fun
+            Loop({more, _}) -> Loop(zlib:inflateChunk(Z));
+            Loop(_) -> ok
+        end,
+
+    submit_throughput_results(Size,
+        fun() ->
+            ChunkLoop(zlib:inflateChunk(Z, Compressed))
+        end).
+
+submit_throughput_results(Size, Fun) ->
+    TimeTaken = measure_perf_counter(Fun, millisecond),
+
+    KBPS = trunc((Size bsr 10) / (TimeTaken / 1000)),
+    ct_event:notify(#event{ name = benchmark_data, data = [{value,KBPS}] }),
+    {comment, io_lib:format("~p ms, ~p KBPS", [TimeTaken, KBPS])}.
+
+measure_perf_counter(Fun, Unit) ->
+    Start = os:perf_counter(Unit),
+    Fun(),
+    os:perf_counter(Unit) - Start.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %%% Helps with testing directly %%%%%%%%%%%%%
 
-conf(What,Config) ->
-    try proplists:get_value(What,Config) of
-	undefined ->
-	    "./zlib_SUITE_data";
-	Dir ->
-	    Dir
+get_data_dir(Config) ->
+    try proplists:get_value(data_dir,Config) of
+        undefined ->
+            "./zlib_SUITE_data";
+        Dir ->
+            Dir
     catch
-	_:_ -> "./zlib_SUITE_data"
+        _:_ -> "./zlib_SUITE_data"
     end.
 
-t() -> t([all]).
-
-t(What) when not is_list(What) ->
-    t([What]);
-t(What) ->
-    lists:foreach(fun(T) ->
-			  try ?MODULE:T([])
-			  catch _E:_R ->
-				  Line = get(test_server_loc),
-				  io:format("Failed ~p:~p ~p ~p ~p~n", 
-					    [T,Line,_E,_R, erlang:get_stacktrace()])
-			  end
-		  end, expand(What)).
-
-expand(All) ->
-    lists:reverse(expand(All,[])).
-expand([H|T], Acc)  -> 
-    case ?MODULE:H(suite) of
-	[] -> expand(T,[H|Acc]);
-	Cs -> 
-	    R = expand(Cs, Acc),
-	    expand(T, R)
-    end;
-expand([], Acc) -> Acc.
-
+%% Generates a bunch of statistically random bytes using the size as seed.
+gen_determ_rand_bytes(Size) ->
+    gen_determ_rand_bytes(Size, erlang:md5_init(), <<>>).
+gen_determ_rand_bytes(Size, _Context, Acc) when Size =< 0 ->
+    Acc;
+gen_determ_rand_bytes(Size, Context0, Acc) when Size > 0 ->
+    Context = erlang:md5_update(Context0, <<Size/integer>>),
+    Checksum = erlang:md5_final(Context),
+    gen_determ_rand_bytes(Size - 16, Context, <<Acc/binary, Checksum/binary>>).
diff --git a/lib/kernel/vsn.mk b/lib/kernel/vsn.mk
index c9463241d1..cef54dd41a 100644
--- a/lib/kernel/vsn.mk
+++ b/lib/kernel/vsn.mk
@@ -1 +1 @@
-KERNEL_VSN = 5.3.1
+KERNEL_VSN = 5.4
diff --git a/lib/megaco/doc/src/Makefile b/lib/megaco/doc/src/Makefile
index 8b9ce31d0e..43704cddf4 100644
--- a/lib/megaco/doc/src/Makefile
+++ b/lib/megaco/doc/src/Makefile
@@ -1,7 +1,7 @@
-# 
+#
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2000-2016. All Rights Reserved.
+# Copyright Ericsson AB 2000-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -43,7 +43,7 @@ include files.mk
 # ----------------------------------------------------
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
 INTERNAL_HTML_FILES = $(TECHNICAL_DESCR_FILES:%.xml=$(HTMLDIR)/%.html)
 
@@ -70,10 +70,6 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
-INDEX_FILE   = index.html
-INDEX_SRC    = $(INDEX_FILE).src
-INDEX_TARGET = $(DOCDIR)/$(INDEX_FILE)
-
 STANDARD_DIR = ../standard
 STANDARDS = $(STANDARD_DIR)/rfc3525.txt \
             $(STANDARD_DIR)/rfc4234.txt \
@@ -81,10 +77,10 @@ STANDARDS = $(STANDARD_DIR)/rfc3525.txt \
             $(STANDARD_DIR)/implementors_guide_v10-13.pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 
 # ----------------------------------------------------
@@ -101,7 +97,7 @@ $(HTMLDIR)/%.png: %.png
 
 docs: pdf html man
 
-ldocs: local_docs $(INDEX_TARGET)
+ldocs: local_docs
 
 $(TOP_PDF_FILE): $(XML_FILES)
 
@@ -121,22 +117,14 @@ clean_html:
 
 imgs: $(IMG_FILES:%=$(HTMLDIR)/%)
 
-man: $(MAN3_FILES) 
-
-$(INDEX_TARGET): $(INDEX_SRC) $(APP_FILE)
-	sed -e 's/%VSN%/$(VSN)/' \
-            -e 's/%ERLANG_SITE%/www\.erlang\.se\//' \
-            -e 's/%UP_ONE_LEVEL%/..\/..\/..\/doc\/index.html/' \
-            -e 's/%OFF_PRINT%/pdf\/megaco-$(VSN).pdf/' $< > $@
+man: $(MAN3_FILES)
 
-debug opt: 
+debug opt:
 
 info:
 	@echo "->Makefile<-"
 	@echo ""
-	@echo "INDEX_FILE   = $(INDEX_FILE)"
-	@echo "INDEX_SRC    = $(INDEX_SRC)"
-	@echo "INDEX_TARGET = $(INDEX_TARGET)"
+	@echo "HTML_REF_MAN_FILE   = $(HTML_REF_MAN_FILE)"
 	@echo ""
 	@echo "XML_APPLICATION_FILES = $(XML_APPLICATION_FILES)"
 	@echo "XML_PART_FILES        = $(XML_PART_FILES)"
@@ -158,7 +146,7 @@ info:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -193,4 +181,3 @@ $(HTMLDIR)/megaco_transport_mechanisms.html: megaco_transport_mechanisms.xml
 $(HTMLDIR)/megaco_transport.html: megaco_transport.xml
 $(HTMLDIR)/megaco_udp.html: megaco_udp.xml
 $(HTMLDIR)/megaco_user.html: megaco_user.xml
-
diff --git a/lib/megaco/doc/src/book.gif b/lib/megaco/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/megaco/doc/src/book.gif
+++ /dev/null
diff --git a/lib/megaco/doc/src/book.xml b/lib/megaco/doc/src/book.xml
index 47ad9b6a5e..9c304d6cae 100644
--- a/lib/megaco/doc/src/book.xml
+++ b/lib/megaco/doc/src/book.xml
@@ -11,7 +11,7 @@
       Licensed under the Apache License, Version 2.0 (the "License");
       you may not use this file except in compliance with the License.
       You may obtain a copy of the License at
- 
+
           http://www.apache.org/licenses/LICENSE-2.0
 
       Unless required by applicable law or agreed to in writing, software
@@ -19,7 +19,7 @@
       WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       See the License for the specific language governing permissions and
       limitations under the License.
-    
+
     </legalnotice>
 
     <title>Megaco/H.248</title>
@@ -46,4 +46,3 @@
   </releasenotes>
   <index></index>
 </book>
-
diff --git a/lib/megaco/doc/src/fascicules.xml b/lib/megaco/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/megaco/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/megaco/doc/src/files.mk b/lib/megaco/doc/src/files.mk
index 5e7d849ab6..e40889c3fb 100644
--- a/lib/megaco/doc/src/files.mk
+++ b/lib/megaco/doc/src/files.mk
@@ -2,7 +2,7 @@
 
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2001-2016. All Rights Reserved.
+# Copyright Ericsson AB 2001-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -36,9 +36,7 @@ XML_REF3_FILES = \
 	megaco_udp.xml
 
 XML_PART_FILES =       \
-	part.xml       \
-        part_notes.xml \
-        part_notes_history.xml
+	part.xml
 
 XML_EXTRA_FILES = \
 	notes_history.xml
@@ -61,11 +59,6 @@ IMG_FILES = \
 	single_node_config.gif \
 	distr_node_config.gif \
 	megaco_sys_arch.gif \
-	user_guide.gif \
-	note.gif \
-	notes.gif \
-	ref_man.gif \
-	book.gif \
 	MG-startup_flow_noMID.gif \
 	MGC_startup_call_flow.gif \
 	MG_startup_call_flow.gif \
diff --git a/lib/megaco/doc/src/index.html.src b/lib/megaco/doc/src/index.html.src
deleted file mode 100644
index b3ff9c3ae7..0000000000
--- a/lib/megaco/doc/src/index.html.src
+++ /dev/null
@@ -1,113 +0,0 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<!-- This file is obsolete -->
-<HTML>
-<!-- 
- ``Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- 
- The Initial Developer of the Original Code is Ericsson Utvecklings AB.
- Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
- AB. All Rights Reserved.''
- 
-     $Id$
--->
-<HEAD>
-<TITLE>Megaco %VSN%</TITLE>
-</HEAD>
-
-<BODY BGCOLOR="#FFFFFF">
-
-<CENTER>
-<A HREF="http://%ERLANG_SITE%">
-  <IMG ALT="Erlang/OTP" BORDER=0 SRC="html/min_head.gif">
-</A><BR>
-
-<FONT SIZE="-1">
-[<A HREF="%UP_ONE_LEVEL%">Up</A> |
-<A HREF="http://%ERLANG_SITE%">Erlang/OTP</A>]
-</FONT><BR>
-
-<P><FONT SIZE="+3">Megaco</FONT><BR>
-Version %VSN%
-</CENTER>
-
-<P><TABLE>
-<TR>
-<TD>
-<!-- IMG ALIGN=LEFT ALT="MEGACO" SRC="html/megaco.gif" -->
-</TD>
-
-<TD>
-    <p>The <STRONG>Megaco</STRONG> application is a framework
-for building applications on top of the Megaco/H.248 protocol.</p>  
-</TD>
-</TR>
-</TABLE>
-
-<P><CENTER>
-<TABLE CELLPADDING=15>
-<TR>
-<TD ALIGN=CENTER>
-<A HREF="html/users_guide.html">
-  <IMG ALT="User's Guide" BORDER=0 SRC="html/user_guide.gif">
-</A>
-<BR>
-<FONT SIZE="-1">
-<A HREF="html/users_guide.html">User's Guide</A>
-</FONT>
-</TD>
-
-<TD ALIGN=CENTER>
-<A HREF="html/index.html">
-  <IMG ALT="Reference Manual" BORDER=0 SRC="html/ref_man.gif">
-</A>
-<BR>
-<FONT SIZE="-1">
-<A HREF="html/index.html">Reference Manual</A>
-</FONT>
-</TD>
-
-</TR>
-
-<TR>
-<TD ALIGN=CENTER>
-<A HREF="html/release_notes.html">
-  <IMG ALT="Release Notes" BORDER=0 SRC="html/notes.gif">
-</A>
-<BR>
-<FONT SIZE="-1">
-<A HREF="html/release_notes.html">Release Notes</A>
-</FONT>
-</TD>
-
-<TD ALIGN=CENTER>
-<A HREF="%OFF_PRINT%">
-  <IMG ALT="Off-Print" BORDER=0 SRC="html/book.gif">
-</A>
-<BR>
-<FONT SIZE="-1">
-<A HREF="%OFF_PRINT%">Off-Print</A>
-</FONT>
-</TD>
-</TR>
-</TABLE>
-</CENTER>
-
-<P><CENTER>
-<HR>
-<FONT SIZE="-1">
-Copyright &copy; 1991-2001
-<A HREF="http://www.erlang.se/">Ericsson Utvecklings AB</A>
-</FONT>
-</CENTER>
-</BODY>
-</HTML>
diff --git a/lib/megaco/doc/src/note.gif b/lib/megaco/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/megaco/doc/src/note.gif
+++ /dev/null
diff --git a/lib/megaco/doc/src/notes.gif b/lib/megaco/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/megaco/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/megaco/doc/src/notes.xml b/lib/megaco/doc/src/notes.xml
index 068389c0c2..deb2bfcff3 100644
--- a/lib/megaco/doc/src/notes.xml
+++ b/lib/megaco/doc/src/notes.xml
@@ -11,7 +11,7 @@
       Licensed under the Apache License, Version 2.0 (the "License");
       you may not use this file except in compliance with the License.
       You may obtain a copy of the License at
- 
+
           http://www.apache.org/licenses/LICENSE-2.0
 
       Unless required by applicable law or agreed to in writing, software
@@ -19,9 +19,9 @@
       WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       See the License for the specific language governing permissions and
       limitations under the License.
-      
+
     </legalnotice>
-    
+
     <title>Megaco Release Notes</title>
     <prepared>Lars Thors&eacute;n, H&aring;kan Mattsson, Micael Karlberg</prepared>
     <docno></docno>
@@ -35,8 +35,8 @@
   bugfixes for every release of Megaco. Each release of Megaco
   thus constitutes one section in this document. The title of each
   section is the version number of Megaco.</p>
-  
-  
+
+
   <section><title>Megaco 3.18.2</title>
 
     <section><title>Improvements and New Features</title>
@@ -142,7 +142,7 @@
       </item>
     </list>
     </section>
-  
+
   </section>
 
   <section><title>Megaco 3.17.0.2</title>
@@ -158,7 +158,7 @@
       </item>
     </list>
     </section>
-  
+
   </section>
 
   <section><title>Megaco 3.17.0.1</title>
@@ -190,7 +190,7 @@
       <list type="bulleted">
         <item>
           <p>Allow whitespaces in installation path. </p>
-          <p>It is now possible to give configure and make an 
+          <p>It is now possible to give configure and make an
 	  installation/release path with whitespaces in it. </p>
           <p>Own Id: OTP-10107</p>
         </item>
@@ -202,24 +202,24 @@
 
     <section>
       <title>Fixed bugs and malfunctions</title>
-      
+
  <!--
       <p>-</p>
  -->
-      
+
       <list type="bulleted">
 	<item>
-          <p>Buffer overrun error while flex scanner processing 
+          <p>Buffer overrun error while flex scanner processing
 	  property parm groups. </p>
-          <p>This error occured only for large messages if a 
-	  buffer realloc was needed while processing the 
+          <p>This error occured only for large messages if a
+	  buffer realloc was needed while processing the
 	  property parm groups. </p>
           <p>Own Id: OTP-10998</p>
           <p>Aux Id: Seq 12263</p>
 	</item>
-	
+
       </list>
-      
+
     </section>
 
     <section>
@@ -229,10 +229,10 @@
 <!--
       <list type="bulleted">
         <item>
-	  <p>A number of binary encoding alternatives has been removed. 
+	  <p>A number of binary encoding alternatives has been removed.
 	  The binary encoding option <c>driver</c> has been removed
-	  since this (the use of the asn1 linked in driver) is 
-	  now default and there is now way to <em>not</em> use it. 
+	  since this (the use of the asn1 linked in driver) is
+	  now default and there is now way to <em>not</em> use it.
 	  See <seealso marker="megaco_encode#binary_config">configuration of binary encoding</seealso> for more info. </p>
         </item>
 
@@ -270,19 +270,19 @@
 
     <section>
       <title>Fixed bugs and malfunctions</title>
-      
+
       <p>-</p>
-      
+
  <!--
       <list type="bulleted">
 	<item>
 	  <p>Fixing miscellaneous things detected by dialyzer. </p>
 	  <p>Own Id: OTP-9075</p>
 	</item>
-	
+
       </list>
  -->
-      
+
     </section>
 
     <section>
@@ -293,10 +293,10 @@
 
       <list type="bulleted">
         <item>
-	  <p>A number of binary encoding alternatives has been removed. 
+	  <p>A number of binary encoding alternatives has been removed.
 	  The binary encoding option <c>driver</c> has been removed
-	  since this (the use of the asn1 linked in driver) is 
-	  now default and there is now way to <em>not</em> use it. 
+	  since this (the use of the asn1 linked in driver) is
+	  now default and there is now way to <em>not</em> use it.
 	  See <seealso marker="megaco_encode#binary_config">configuration of binary encoding</seealso> for more info. </p>
         </item>
 
@@ -322,7 +322,7 @@
       <list type="bulleted">
         <item>
           <p>Allow whitespaces in installation path. </p>
-          <p>It is now possible to give configure and make an 
+          <p>It is now possible to give configure and make an
 	  installation/release path with whitespaces in it. </p>
           <p>Own Id: OTP-10107</p>
         </item>
@@ -332,8 +332,8 @@
         </item>
 
         <item>
-          <p>Removed use of deprecated system flag, 
-	  <c>global_haeps_size</c>, in the measurement tool 
+          <p>Removed use of deprecated system flag,
+	  <c>global_haeps_size</c>, in the measurement tool
 	  <c>mstone1</c>. </p>
         </item>
 
@@ -343,19 +343,19 @@
 
     <section>
       <title>Fixed bugs and malfunctions</title>
-      
+
       <p>-</p>
-      
+
  <!--
       <list type="bulleted">
 	<item>
 	  <p>Fixing miscellaneous things detected by dialyzer. </p>
 	  <p>Own Id: OTP-9075</p>
 	</item>
-	
+
       </list>
  -->
-      
+
     </section>
 
     <section>
@@ -365,8 +365,8 @@
 <!--
       <list type="bulleted">
         <item>
-	  <p>Due to the change in the flex driver API, 
-	  we may no longer be able to build and/or use 
+	  <p>Due to the change in the flex driver API,
+	  we may no longer be able to build and/or use
 	  the flex driver without reentrant support. </p>
           <p>Own Id: OTP-9795</p>
         </item>
@@ -400,8 +400,8 @@
         </item>
 
         <item>
-          <p>Removed use of deprecated system flag, 
-	  <c>scheduler_bind_type</c>, in the measurement tool 
+          <p>Removed use of deprecated system flag,
+	  <c>scheduler_bind_type</c>, in the measurement tool
 	  <c>mstone1</c>. </p>
           <p>Own Id: OTP-9949</p>
         </item>
@@ -412,19 +412,19 @@
 
     <section>
       <title>Fixed bugs and malfunctions</title>
-      
+
       <p>-</p>
-      
+
  <!--
       <list type="bulleted">
 	<item>
 	  <p>Fixing miscellaneous things detected by dialyzer. </p>
 	  <p>Own Id: OTP-9075</p>
 	</item>
-	
+
       </list>
  -->
-      
+
     </section>
 
     <section>
@@ -434,8 +434,8 @@
 <!--
       <list type="bulleted">
         <item>
-	  <p>Due to the change in the flex driver API, 
-	  we may no longer be able to build and/or use 
+	  <p>Due to the change in the flex driver API,
+	  we may no longer be able to build and/or use
 	  the flex driver without reentrant support. </p>
           <p>Own Id: OTP-9795</p>
         </item>
@@ -467,8 +467,8 @@
         </item>
 
         <item>
-	  <p>ASN.1 no longer makes use of a driver to accelerate encode/decode, 
-	  instead it uses NIFs. The encoding config option is <em>still</em> 
+	  <p>ASN.1 no longer makes use of a driver to accelerate encode/decode,
+	  instead it uses NIFs. The encoding config option is <em>still</em>
 	  the same, i.e. <c>driver</c>. </p>
           <p>Own Id: OTP-9672</p>
         </item>
@@ -491,19 +491,19 @@
 
     <section>
       <title>Fixed bugs and malfunctions</title>
-      
+
       <p>-</p>
-      
+
  <!--
       <list type="bulleted">
 	<item>
 	  <p>Fixing miscellaneous things detected by dialyzer. </p>
 	  <p>Own Id: OTP-9075</p>
 	</item>
-	
+
       </list>
  -->
-      
+
     </section>
 
     <section>
@@ -513,8 +513,8 @@
 <!--
       <list type="bulleted">
         <item>
-	  <p>Due to the change in the flex driver API, 
-	  we may no longer be able to build and/or use 
+	  <p>Due to the change in the flex driver API,
+	  we may no longer be able to build and/or use
 	  the flex driver without reentrant support. </p>
           <p>Own Id: OTP-9795</p>
         </item>
@@ -551,19 +551,19 @@
 
     <section>
       <title>Fixed bugs and malfunctions</title>
-      
+
       <p>-</p>
-      
+
  <!--
       <list type="bulleted">
 	<item>
 	  <p>Fixing miscellaneous things detected by dialyzer. </p>
 	  <p>Own Id: OTP-9075</p>
 	</item>
-	
+
       </list>
  -->
-      
+
     </section>
 
   </section> <!-- 3.15.1.1 -->
@@ -582,8 +582,8 @@
 <!--
       <list type="bulleted">
         <item>
-          <p>Updated the 
-            <seealso marker="megaco_performance">performance</seealso> 
+          <p>Updated the
+            <seealso marker="megaco_performance">performance</seealso>
             chapter. </p>
           <p>Own Id: OTP-8696</p>
         </item>
@@ -637,7 +637,7 @@
 <!--
       <list type="bulleted">
         <item>
-          <p>Eliminated a possible race condition while creating 
+          <p>Eliminated a possible race condition while creating
             pending counters. </p>
           <p>Own Id: OTP-8634</p>
 	  <p>Aux Id: Seq 11579</p>
@@ -666,8 +666,8 @@
 
       <list type="bulleted">
         <item>
-          <p>Updated the 
-            <seealso marker="megaco_performance">performance</seealso> 
+          <p>Updated the
+            <seealso marker="megaco_performance">performance</seealso>
             chapter. </p>
           <p>Own Id: OTP-8696</p>
         </item>
@@ -694,14 +694,14 @@
 
         <item>
           <p>Fix shared libraries installation. </p>
-          <p>The flex shared lib(s) were incorrectly installed as data 
+          <p>The flex shared lib(s) were incorrectly installed as data
             files. </p>
           <p>Peter Lemenkov</p>
           <p>Own Id: OTP-8627</p>
         </item>
 
         <item>
-          <p>Eliminated a possible race condition while creating 
+          <p>Eliminated a possible race condition while creating
             pending counters. </p>
           <p>Own Id: OTP-8634</p>
 	  <p>Aux Id: Seq 11579</p>
@@ -757,14 +757,14 @@
 
         <item>
           <p>Fix shared libraries installation. </p>
-          <p>The flex shared lib(s) were incorrectly installed as data 
+          <p>The flex shared lib(s) were incorrectly installed as data
             files. </p>
           <p>Peter Lemenkov</p>
           <p>Own Id: OTP-8627</p>
         </item>
 
         <item>
-          <p>Eliminated a possible race condition while creating 
+          <p>Eliminated a possible race condition while creating
             pending counters. </p>
           <p>Own Id: OTP-8634</p>
 	  <p>Aux Id: Seq 11579</p>
@@ -792,18 +792,18 @@
 
       <list type="bulleted">
         <item>
-          <p>Various changes to configure and makefile(s) to facilitate cross 
+          <p>Various changes to configure and makefile(s) to facilitate cross
             compilation (and other build system improvements). </p>
           <p>Own Id: OTP-8323</p>
         </item>
 
         <item>
-          <p>Added a help target in the test Makefile to explain 
-            the most useful make targets, used when testing the 
+          <p>Added a help target in the test Makefile to explain
+            the most useful make targets, used when testing the
             application using the test-server provided with megaco.</p>
           <p>Own Id: OTP-8362</p>
         </item>
- 
+
         <item>
           <p>Adapted megaco_filter to the new internal format.</p>
           <p>Own Id: OTP-8403</p>
@@ -820,16 +820,16 @@
 
       <list type="bulleted">
         <item>
-          <p>Callbacks, when the callback module is unknown (undefined), 
+          <p>Callbacks, when the callback module is unknown (undefined),
             results in warning messages. </p>
           <p>A race condition scenario. As part of a cancelation operation,
             replies with waiting acknowledgements is cancelled. This includes
-            informing the user (via a call to the handle_trans_ack callback 
-            function). It is possible that at this point the connection data 
-            has been removed, which makes it impossible for megaco to 
-            perform this operation, resulting in the warning message. The 
-            solution is to also store the callback module with the other 
-            reply information, to be used when cleaning up after a 
+            informing the user (via a call to the handle_trans_ack callback
+            function). It is possible that at this point the connection data
+            has been removed, which makes it impossible for megaco to
+            perform this operation, resulting in the warning message. The
+            solution is to also store the callback module with the other
+            reply information, to be used when cleaning up after a
             cancelation. </p>
           <p>Own Id: OTP-8328</p>
 	  <p>Aux Id: Seq 11384</p>
@@ -863,8 +863,8 @@
         </item>
 
         <item>
-          <p>The documentation is now built with open source tools 
-            (<em>xsltproc</em> and <em>fop</em>) that exists on most 
+          <p>The documentation is now built with open source tools
+            (<em>xsltproc</em> and <em>fop</em>) that exists on most
             platforms. One visible change is that the frames are removed.</p>
           <p>Own Id: OTP-8249</p>
         </item>
@@ -910,11 +910,4 @@
     </section>
   </section> <!-- 3.13 -->
 
-
-  <!-- section>
-    <title>Release notes history</title>
-    <p>For information about older versions see
-      <url href="part_notes_history_frame.html">release notes history</url>.</p 
-  </section> -->
 </chapter>
-
diff --git a/lib/megaco/doc/src/part_notes.xml b/lib/megaco/doc/src/part_notes.xml
deleted file mode 100644
index 7a838c5718..0000000000
--- a/lib/megaco/doc/src/part_notes.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2000</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Megaco/H.248 Release Notes</title>
-    <prepared>Lars Thors&eacute;n, H&aring;kan Mattsson, Micael Karlberg</prepared>
-    <docno></docno>
-    <date>2007-06-15</date>
-    <rev>%VSN%</rev>
-    <file>part_notes.xml</file>
-  </header>
-  <description>
-    <p>The Megaco application is a framework for building
-      applications on top of the Megaco/H.248 protocol.</p>
-    <p>For information about older versions see
-      <url href="part_notes_history_frame.html">release notes history</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/megaco/doc/src/part_notes_history.xml b/lib/megaco/doc/src/part_notes_history.xml
deleted file mode 100644
index 0d8f1f2fb5..0000000000
--- a/lib/megaco/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,41 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2006</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Megaco Release Notes History</title>
-    <prepared>Micael Karklberg</prepared>
-    <responsible>OTP</responsible>
-    <docno></docno>
-    <approved>OTP</approved>
-    <checked></checked>
-    <date>2007-06-15</date>
-    <rev>A</rev>
-    <file>part_notes_history.xml</file>
-  </header>
-  <description>
-    <p>The Megaco application is a framework for building
-      applications on top of the Megaco/H.248 protocol.</p>
-  </description>
-  <include file="notes_history"></include>
-</part>
-
diff --git a/lib/megaco/doc/src/ref_man.gif b/lib/megaco/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/megaco/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/megaco/doc/src/user_guide.gif b/lib/megaco/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/megaco/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/megaco/doc/src/warning.gif b/lib/megaco/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/megaco/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/mnesia/doc/src/Makefile b/lib/mnesia/doc/src/Makefile
index 39f2b28637..da7a9e9516 100644
--- a/lib/mnesia/doc/src/Makefile
+++ b/lib/mnesia/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 1997-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 1997-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 
@@ -44,9 +44,7 @@ XML_REF3_FILES = \
 	mnesia_registry.xml
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml \
-	part_notes_history.xml
+	part.xml
 
 XML_CHAPTER_FILES = \
 	Mnesia_chap1.xml \
@@ -63,20 +61,12 @@ XML_CHAPTER_FILES = \
 
 BOOK_FILES = book.xml
 
-
 XML_FILES = \
 	$(BOOK_FILES) $(XML_CHAPTER_FILES) \
 	$(XML_PART_FILES) $(XML_REF3_FILES) $(XML_APPLICATION_FILES)
 
 GIF_FILES = \
-	book.gif \
-	company.gif \
-	mnesia.gif \
-	note.gif \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif \
-	warning.gif
+	company.gif
 
 XML_HTML_FILES = \
 	notes_history.xml
@@ -89,7 +79,7 @@ HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
 	$(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html)
 
 INFO_FILE = ../../info
-EXTRA_FILES = summary.html.src \
+EXTRA_FILES = \
 	$(DEFAULT_GIF_FILES) \
 	$(DEFAULT_HTML_FILES) \
 	$(XML_REF3_FILES:%.xml=$(HTMLDIR)/%.html) \
@@ -102,10 +92,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -134,11 +124,11 @@ gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 $(INDEX_TARGET): $(INDEX_SRC) ../../vsn.mk
 	sed -e 's;%VSN%;$(VSN);' $< > $@
 
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/mnesia/doc/src/Mnesia_chap2.xmlsrc b/lib/mnesia/doc/src/Mnesia_chap2.xmlsrc
index 37389ce5ae..914e0e509c 100644
--- a/lib/mnesia/doc/src/Mnesia_chap2.xmlsrc
+++ b/lib/mnesia/doc/src/Mnesia_chap2.xmlsrc
@@ -327,7 +327,7 @@
     <section>
       <title>Initial Database Content</title>
       <p>After the insertion of the  employee named <c>klacke</c>,
-        the databse has the following records:</p>
+        the database has the following records:</p>
       <marker id="table2_1"></marker>
       <table>
         <row>
diff --git a/lib/mnesia/doc/src/Mnesia_chap5.xmlsrc b/lib/mnesia/doc/src/Mnesia_chap5.xmlsrc
index 62759c624b..0265e0efa0 100644
--- a/lib/mnesia/doc/src/Mnesia_chap5.xmlsrc
+++ b/lib/mnesia/doc/src/Mnesia_chap5.xmlsrc
@@ -226,8 +226,10 @@
         not known beforehand, all fragments are searched for
         matching records.</p>
       <p>Notice that in <c>ordered_set</c> tables, the records
-        are ordered per fragment, and the the order is undefined in
-        results returned by <c>select</c> and <c>match_object</c>.</p>
+        are ordered per fragment, and the order is undefined in
+        results returned by <c>select</c> and <c>match_object</c>,
+        as well as <c>first</c>, <c>next</c>, <c>prev</c> and
+        <c>last</c>.</p>
       <p>The following code illustrates how a <c>Mnesia</c> table is
         converted to be a fragmented table and how more fragments
         are added later:</p>
diff --git a/lib/mnesia/doc/src/book.gif b/lib/mnesia/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/mnesia/doc/src/book.gif
+++ /dev/null
diff --git a/lib/mnesia/doc/src/company.erl b/lib/mnesia/doc/src/company.erl
index 20e3235347..5a3b122394 100644
--- a/lib/mnesia/doc/src/company.erl
+++ b/lib/mnesia/doc/src/company.erl
@@ -19,7 +19,12 @@
 %%
 -module(company).
 
--compile(export_all).
+-export([init/0,insert_emp/3,mk_projs/2,females/0,all_females/0,
+         g/0,female_bosses/0, raise_females/1, over_write/2, raise/2,
+         bad_raise/2, get_emps/2, get_emps2/2, filter/2, filter_deps/3,
+         search_deps/3, bench1/0, dotimes/2, dist_init/0, remove_proj/1,
+         del_in_projs/1, sync/0, tabs/0, find_male_on_second_floor/0,
+         panic/1, fill_tables/0]).
 
 %0
 
diff --git a/lib/mnesia/doc/src/company_o.erl b/lib/mnesia/doc/src/company_o.erl
index 7300e9d4bb..650b6cdeca 100644
--- a/lib/mnesia/doc/src/company_o.erl
+++ b/lib/mnesia/doc/src/company_o.erl
@@ -19,7 +19,11 @@
 %%
 
 -module(company_o).
--compile(export_all).
+
+-export([sinit/0, init/0,insert_emp/3,females/0,
+         female_bosses/0, raise_females/1, over_write/2, raise/2,
+         bad_raise/2, get_emps/2, get_emps2/2]).
+
 
 -import(mnesia, [transaction/1]).
 
diff --git a/lib/mnesia/doc/src/fascicules.xml b/lib/mnesia/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/mnesia/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/mnesia/doc/src/mnesia.gif b/lib/mnesia/doc/src/mnesia.gif
deleted file mode 100644
index fbbabee5aa..0000000000
--- a/lib/mnesia/doc/src/mnesia.gif
+++ /dev/null
diff --git a/lib/mnesia/doc/src/note.gif b/lib/mnesia/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/mnesia/doc/src/note.gif
+++ /dev/null
diff --git a/lib/mnesia/doc/src/notes.gif b/lib/mnesia/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/mnesia/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/mnesia/doc/src/notes.xml b/lib/mnesia/doc/src/notes.xml
index 3ca4026190..026c6a89d7 100644
--- a/lib/mnesia/doc/src/notes.xml
+++ b/lib/mnesia/doc/src/notes.xml
@@ -11,7 +11,7 @@
       Licensed under the Apache License, Version 2.0 (the "License");
       you may not use this file except in compliance with the License.
       You may obtain a copy of the License at
- 
+
           http://www.apache.org/licenses/LICENSE-2.0
 
       Unless required by applicable law or agreed to in writing, software
@@ -39,7 +39,22 @@
     thus constitutes one section in this document. The title of each
     section is the version number of Mnesia.</p>
 
-  <section><title>Mnesia 4.15</title>
+  <section><title>Mnesia 4.15.1</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Mnesia 4.15</title>
 
     <section><title>Improvements and New Features</title>
       <list>
@@ -891,9 +906,9 @@
         </item>
       </list>
     </section>
-    
-  </section>  
-  
+
+  </section>
+
   <section><title>Mnesia 4.4.13</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
@@ -962,7 +977,7 @@
 
   </section>
   <section><title>Mnesia 4.4.10</title>
-    
+
     <section><title>Fixed Bugs and Malfunctions</title>
       <list>
         <item>
@@ -992,7 +1007,7 @@
         </item>
       </list>
     </section>
-    
+
   </section>
 
 
@@ -1010,7 +1025,7 @@
         </item>
       </list>
     </section>
-    
+
   </section>
 
   <section><title>Mnesia 4.4.8</title>
@@ -1035,7 +1050,7 @@
         </item>
       </list>
     </section>
-    
+
   </section>
 
  <section><title>Mnesia 4.4.7</title>
@@ -1069,7 +1084,7 @@
 
 </section>
 
- <section><title>Mnesia 4.4.6</title>    
+ <section><title>Mnesia 4.4.6</title>
     <section><title>Fixed Bugs and Malfunctions</title>
       <list>
         <item>
@@ -1260,9 +1275,4 @@
     </section>
   </section>
 
-  <!-- section>
-    <title>Previous Notes</title>
-    <p>For information about older versions see <url href="part_notes_history_frame.html">release notes history</url>.</p>
-  </section -->
 </chapter>
-
diff --git a/lib/mnesia/doc/src/part_notes.xml b/lib/mnesia/doc/src/part_notes.xml
deleted file mode 100644
index 1e4e4bc60a..0000000000
--- a/lib/mnesia/doc/src/part_notes.xml
+++ /dev/null
@@ -1,42 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>1997</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>MNESIA Release Notes</title>
-    <prepared>Claes Wikstr&ouml;m, Hans Nilsson and H&aring;kan Mattsson</prepared>
-    <docno></docno>
-    <date>1997-05-27</date>
-    <rev>1.2</rev>
-    <file>part_notes.xml</file>
-  </header>
-  <description>
-    <p><em>Mnesia</em> is a Distributed DataBase Management
-      System (DBMS), appropriate for telecommunications applications and other
-      Erlang applications which require continuous operation and exhibit soft
-      real-time properties. </p>
-    <p>For information about older versions see
-      <url href="part_notes_history_frame.html">release notes history</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/mnesia/doc/src/part_notes_history.xml b/lib/mnesia/doc/src/part_notes_history.xml
deleted file mode 100644
index a1c6f5aef0..0000000000
--- a/lib/mnesia/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,42 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2004</year>
-      <year>2016</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
- 
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>MNESIA Release Notes</title>
-    <prepared>Claes Wikstr&ouml;m, Hans Nilsson and H&aring;kan Mattsson</prepared>
-    <docno></docno>
-    <date>1997-05-27</date>
-    <rev>1.2</rev>
-    <file>part_notes_history.sgml</file>
-  </header>
-  <description>
-    <p><em>Mnesia</em> is a Distributed DataBase Management
-      System (DBMS), appropriate for telecommunications applications and other
-      Erlang applications which require continuous operation and exhibit soft
-      real-time properties. </p>
-  </description>
-  <include file="notes_history"></include>
-</part>
-
diff --git a/lib/mnesia/doc/src/ref_man.gif b/lib/mnesia/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/mnesia/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/mnesia/doc/src/summary.html.src b/lib/mnesia/doc/src/summary.html.src
deleted file mode 100644
index 2941a2f46a..0000000000
--- a/lib/mnesia/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-A heavy duty real-time distributed database
\ No newline at end of file
diff --git a/lib/mnesia/doc/src/user_guide.gif b/lib/mnesia/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/mnesia/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/mnesia/doc/src/warning.gif b/lib/mnesia/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/mnesia/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/mnesia/src/mnesia.app.src b/lib/mnesia/src/mnesia.app.src
index 6b49fc6c88..c755b4d4b9 100644
--- a/lib/mnesia/src/mnesia.app.src
+++ b/lib/mnesia/src/mnesia.app.src
@@ -49,4 +49,4 @@
 	       ]},
   {applications, [kernel, stdlib]},
   {mod, {mnesia_app, []}},
-  {runtime_dependencies, ["stdlib-2.0","kernel-3.0","erts-7.0"]}]}.
+  {runtime_dependencies, ["stdlib-3.4","kernel-5.3","erts-9.0"]}]}.
diff --git a/lib/mnesia/src/mnesia.erl b/lib/mnesia/src/mnesia.erl
index 3b771e8c5b..b68b2de028 100644
--- a/lib/mnesia/src/mnesia.erl
+++ b/lib/mnesia/src/mnesia.erl
@@ -2283,9 +2283,9 @@ list_index_plugins([{N,M,F} | T] = Ps, Legend) ->
 	  lists:foldl(fun({N1,_,_}, Wa) ->
 			      erlang:max(Wa, length(pp_ix_name(N1)))
 		      end, 0, Ps)),
-    io:fwrite(Legend ++ "~-" ++ W ++ "s - ~s:~s~n",
+    io:fwrite(Legend ++ "~-" ++ W ++ "s - ~s:~ts~n",
 	      [pp_ix_name(N), atom_to_list(M), atom_to_list(F)]),
-    [io:fwrite(Indent ++ "~-" ++ W ++ "s - ~s:~s~n",
+    [io:fwrite(Indent ++ "~-" ++ W ++ "s - ~s:~ts~n",
 	       [pp_ix_name(N1), atom_to_list(M1), atom_to_list(F1)])
      || {N1,M1,F1} <- T].
 
diff --git a/lib/mnesia/src/mnesia_bup.erl b/lib/mnesia/src/mnesia_bup.erl
index 3e55deb958..34f16f178b 100644
--- a/lib/mnesia/src/mnesia_bup.erl
+++ b/lib/mnesia/src/mnesia_bup.erl
@@ -920,7 +920,7 @@ create_dat_files([{schema, Tab, TabDef} | Tail], Ext, LocalTabs) ->
 				       ok ->
 					   ok;
 				       {error, Reason} ->
-					   mnesia_lib:fatal("Cannot rename file ~p -> ~p: ~p~n",
+					   mnesia_lib:fatal("Cannot rename file ~tp -> ~tp: ~tp~n",
 							    [TmpFile, DclFile, Reason])
 				   end
 			   end
@@ -1016,7 +1016,7 @@ disc_only_swap_fun(disc_only_copies, Expunge, Open, Close) ->
 		ok ->
 		    ok;
 		{error, Reason} ->
-		    mnesia_lib:fatal("Cannot rename file ~p -> ~p: ~p~n",
+		    mnesia_lib:fatal("Cannot rename file ~tp -> ~tp: ~tp~n",
 				     [TmpFile, DatFile, Reason])
 	    end
     end;
diff --git a/lib/mnesia/src/mnesia_checkpoint.erl b/lib/mnesia/src/mnesia_checkpoint.erl
index 8659e4622c..2ff77326a9 100644
--- a/lib/mnesia/src/mnesia_checkpoint.erl
+++ b/lib/mnesia/src/mnesia_checkpoint.erl
@@ -683,14 +683,14 @@ retainer_create(_Cp, R, Tab, Name, Ext = {ext, Alias, Mod}) ->
     Cs = val({Tab, cstruct}),
     Mod:load_table(Alias, T, {retainer, create_table},
 		   mnesia_schema:cs2list(Cs)),
-    dbg_out("Checkpoint retainer created ~p ~p~n", [Name, Tab]),
+    dbg_out("Checkpoint retainer created ~p ~tp~n", [Name, Tab]),
     R#retainer{store = {Ext, T}, really_retain = true};
 retainer_create(_Cp, R, Tab, Name, disc_only_copies) ->
     Fname = tab2retainer({Tab, Name}),
     file:delete(Fname),
     Args = [{file, Fname}, {type, set}, {keypos, 2}, {repair, false}],
     {ok, _} = mnesia_lib:dets_sync_open({Tab, Name}, Args),
-    dbg_out("Checkpoint retainer created ~p ~p~n", [Name, Tab]),
+    dbg_out("Checkpoint retainer created ~p ~tp~n", [Name, Tab]),
     R#retainer{store = {dets, {Tab, Name}}, really_retain = true};
 retainer_create(Cp, R, Tab, Name, Storage) ->
     T = ?ets_new_table(mnesia_retainer, [set, public, {keypos, 2}]),
@@ -698,7 +698,7 @@ retainer_create(Cp, R, Tab, Name, Storage) ->
     ReallyR = R#retainer.really_retain,
     ReallyCp = lists:member(Tab, Overriders),
     ReallyR2 = prepare_ram_tab(Tab, T, Storage, ReallyR, ReallyCp),
-    dbg_out("Checkpoint retainer created ~p ~p~n", [Name, Tab]),
+    dbg_out("Checkpoint retainer created ~p ~tp~n", [Name, Tab]),
     R#retainer{store = {ets, T}, really_retain = ReallyR2}.
 
 %% Copy the dumped table into retainer if needed
@@ -849,7 +849,7 @@ retainer_loop(Cp = #checkpoint_args{is_activated=false, name=Name}) ->
 	    retainer_loop(Cp#checkpoint_args{iterators = Iters});
 
 	{system, From, Msg} ->
-	    dbg_out("~p got {system, ~p, ~p}~n", [?MODULE, From, Msg]),
+	    dbg_out("~p got {system, ~p, ~tp}~n", [?MODULE, From, Msg]),
 	    sys:handle_system_msg(Msg, From, Cp#checkpoint_args.supervisor,
 				  ?MODULE, [], Cp)
     end;
@@ -938,11 +938,11 @@ retainer_loop(Cp = #checkpoint_args{name=Name}) ->
 	    retainer_loop(Cp#checkpoint_args{iterators = Iters});
 
 	{system, From, Msg} ->
-	    dbg_out("~p got {system, ~p, ~p}~n", [?MODULE, From, Msg]),
+	    dbg_out("~p got {system, ~p, ~tp}~n", [?MODULE, From, Msg]),
 	    sys:handle_system_msg(Msg, From, Cp#checkpoint_args.supervisor,
 				  ?MODULE, [], Cp);
 	Msg ->
-	    dbg_out("~p got ~p~n", [?MODULE, Msg])
+	    dbg_out("~p got ~tp~n", [?MODULE, Msg])
     end.
 
 maybe_activate(Cp)
diff --git a/lib/mnesia/src/mnesia_controller.erl b/lib/mnesia/src/mnesia_controller.erl
index 6b93935cb4..77013489b3 100644
--- a/lib/mnesia/src/mnesia_controller.erl
+++ b/lib/mnesia/src/mnesia_controller.erl
@@ -446,7 +446,7 @@ try_schedule_late_disc_load(Tabs, Reason, MsgTag) ->
 		    [BadNodes]),
 	    try_schedule_late_disc_load(Tabs, Reason, MsgTag);
 	{aborted, AbortReason} ->
-	    fatal("Cannot late_load_tables~p: ~p~n",
+	    fatal("Cannot late_load_tables ~tp: ~tp~n",
 		  [[Tabs, Reason, MsgTag], AbortReason])
     end.
 
@@ -535,7 +535,7 @@ try_merge_schema(Nodes, Told0, UserFun) ->
 		   end,
 	    try_merge_schema(Nodes, Told, UserFun);
 	{atomic, {"Cannot get cstructs", Node, Reason}} ->
-	    dbg_out("Cannot get cstructs, Node ~p ~p~n", [Node, Reason]),
+	    dbg_out("Cannot get cstructs, Node ~p ~tp~n", [Node, Reason]),
 	    timer:sleep(300), % Avoid a endless loop look alike
 	    try_merge_schema(Nodes, Told0, UserFun);
 	{aborted, {shutdown, _}} ->  %% One of the nodes is going down
@@ -826,12 +826,12 @@ handle_call({del_other, Who}, _From, State = #state{others=Others0}) ->
     {reply, ok, State#state{others=Others}};
 
 handle_call(Msg, _From, State) ->
-    error("~p got unexpected call: ~p~n", [?SERVER_NAME, Msg]),
+    error("~p got unexpected call: ~tp~n", [?SERVER_NAME, Msg]),
     noreply(State).
 
 late_disc_load(TabsR, Reason, RemoteLoaders, From,
 	       State = #state{loader_queue = LQ, late_loader_queue = LLQ}) ->
-    verbose("Intend to load tables: ~p~n", [TabsR]),
+    verbose("Intend to load tables: ~tp~n", [TabsR]),
     ?eval_debug_fun({?MODULE, late_disc_load},
 		    [{tabs, TabsR},
 		     {reason, Reason},
@@ -1118,7 +1118,7 @@ handle_cast({adopt_orphans, Node, Tabs}, State) ->
     noreply(State2);
 
 handle_cast(Msg, State) ->
-    error("~p got unexpected cast: ~p~n", [?SERVER_NAME, Msg]),
+    error("~p got unexpected cast: ~tp~n", [?SERVER_NAME, Msg]),
     noreply(State).
 
 handle_sync_tabs([Tab | Tabs], From) ->
@@ -1166,7 +1166,7 @@ handle_info(#dumper_done{worker_pid=Pid, worker_res=Res}, State) ->
 	    State3 = opt_start_worker(State2),
 	    noreply(State3);
 	true ->
-	    fatal("Dumper failed: ~p~n state: ~p~n", [Res, State]),
+	    fatal("Dumper failed: ~p~n state: ~tp~n", [Res, State]),
 	    {stop, fatal, State}
     end;
 
@@ -1249,7 +1249,7 @@ handle_info(#sender_done{worker_pid=Pid, worker_res=Res}, State)  ->
 	true ->
 	    %% No need to send any message to the table receiver
 	    %% since it will soon get a mnesia_down anyway
-	    fatal("Sender failed: ~p~n state: ~p~n", [Res, State]),
+	    fatal("Sender failed: ~p~n state: ~tp~n", [Res, State]),
 	    {stop, fatal, State}
     end;
 
@@ -1257,7 +1257,7 @@ handle_info({'EXIT', Pid, R}, State) when Pid == State#state.supervisor ->
     ?SAFE(set(mnesia_status, stopping)),
     case State#state.dumper_pid of
 	undefined ->
-	    dbg_out("~p was ~p~n", [?SERVER_NAME, R]),
+	    dbg_out("~p was ~tp~n", [?SERVER_NAME, R]),
 	    {stop, shutdown, State};
 	_ ->
 	    noreply(State#state{is_stopping = true})
@@ -1266,12 +1266,12 @@ handle_info({'EXIT', Pid, R}, State) when Pid == State#state.supervisor ->
 handle_info({'EXIT', Pid, R}, State) when Pid == State#state.dumper_pid ->
     case State#state.dumper_queue of
 	[#schema_commit_lock{}|Workers] -> %% Schema trans crashed or was killed
-	    dbg_out("WARNING: Dumper ~p exited ~p~n", [Pid, R]),
+	    dbg_out("WARNING: Dumper ~p exited ~tp~n", [Pid, R]),
 	    State2 = State#state{dumper_queue = Workers, dumper_pid = undefined},
 	    State3 = opt_start_worker(State2),
 	    noreply(State3);
 	_Other ->
-	    fatal("Dumper or schema commit crashed: ~p~n state: ~p~n", [R, State]),
+	    fatal("Dumper or schema commit crashed: ~p~n state: ~tp~n", [R, State]),
 	    {stop, fatal, State}
     end;
 
@@ -1280,15 +1280,15 @@ handle_info(Msg = {'EXIT', Pid, R}, State) when R /= wait_for_tables_timeout ->
 	true ->
 	    %% No need to send any message to the table receiver
 	    %% since it will soon get a mnesia_down anyway
-	    fatal("Sender crashed: ~p~n state: ~p~n", [{Pid,R}, State]),
+	    fatal("Sender crashed: ~p~n state: ~tp~n", [{Pid,R}, State]),
 	    {stop, fatal, State};
 	false ->
 	    case lists:keymember(Pid, 1, get_loaders(State)) of
 		true ->
-		    fatal("Loader crashed: ~p~n state: ~p~n", [R, State]),
+		    fatal("Loader crashed: ~p~n state: ~tp~n", [R, State]),
 		    {stop, fatal, State};
 		false ->
-		    error("~p got unexpected info: ~p~n", [?SERVER_NAME, Msg]),
+		    error("~p got unexpected info: ~tp~n", [?SERVER_NAME, Msg]),
 		    noreply(State)
 	    end
     end;
@@ -1308,7 +1308,7 @@ handle_info({'EXIT', Pid, wait_for_tables_timeout}, State) ->
     noreply(State);
 
 handle_info(Msg, State) ->
-    error("~p got unexpected info: ~p~n", [?SERVER_NAME, Msg]),
+    error("~p got unexpected info: ~tp~n", [?SERVER_NAME, Msg]),
     noreply(State).
 
 sync_tab_timeout(Pid, [{{sync_tab, Tab}, Pids} | Tail]) ->
@@ -2054,7 +2054,7 @@ opt_start_sender2([Sender|R], Pids, Kept, LoaderQ) ->
 	    Pid = spawn_link(?MODULE, send_and_reply,[self(), Sender]),
 	    opt_start_sender2(R,[{Pid,Sender}|Pids],Kept,LoaderQ);
 	true ->
-	    verbose("Send table failed ~p not active on this node ~n", [Tab]),
+	    verbose("Send table failed ~tp not active on this node ~n", [Tab]),
 	    Sender#send_table.receiver_pid ! {copier_done, node()},
 	    opt_start_sender2(R,Pids, Kept, LoaderQ)
     end.
@@ -2239,7 +2239,7 @@ disc_load_table(Tab, Reason, ReplyTo) ->
 	    Done#loader_done{is_loaded = false,
 			     reply = Res};
 	true ->
-	    fatal("Cannot load table ~p from disc: ~p~n", [Tab, Res])
+	    fatal("Cannot load table ~tp from disc: ~tp~n", [Tab, Res])
     end.
 
 filter_active(Tab) ->
diff --git a/lib/mnesia/src/mnesia_dumper.erl b/lib/mnesia/src/mnesia_dumper.erl
index eb02a585a6..f0ed7aef4a 100644
--- a/lib/mnesia/src/mnesia_dumper.erl
+++ b/lib/mnesia/src/mnesia_dumper.erl
@@ -193,7 +193,7 @@ do_perform_dump(Cont, InPlace, InitBy, Regulator, OldVersion) ->
 		    do_perform_dump(C2, InPlace, InitBy, Regulator, Version)
 	    catch _:R when R =/= fatal ->
 		    ST = erlang:get_stacktrace(),
-		    Reason = {"Transaction log dump error: ~p~n", [{R, ST}]},
+		    Reason = {"Transaction log dump error: ~tp~n", [{R, ST}]},
 		    close_files(InPlace, {error, Reason}, InitBy),
 		    exit(Reason)
 	    end;
@@ -329,7 +329,7 @@ perform_update(Tid, SchemaOps, _DumperMode, _UseDir) ->
 	    ST = erlang:get_stacktrace(),
 	    Error = {error, {"Schema update error", {Reason, ST}}},
 	    close_files(InPlace, Error, InitBy),
-            fatal("Schema update error ~p ~p", [{Reason,ST}, SchemaOps])
+            fatal("Schema update error ~tp ~tp", [{Reason,ST}, SchemaOps])
     end.
 
 insert_ops(_Tid, _Storage, [], _InPlace, _InitBy, _) ->    ok;
@@ -1166,7 +1166,7 @@ needs_dump_ets(Tab) ->
             DcdF =  mnesia_lib:tab2dcd(Tab),
             case file:read_file_info(DcdF) of
                 {error, Reason} ->
-                    mnesia_lib:dbg_out("File ~p info_error ~p ~n",
+                    mnesia_lib:dbg_out("File ~tp info_error ~tp ~n",
                                        [DcdF, Reason]),
                     true;
                 {ok, DcdInfo} ->
@@ -1205,7 +1205,7 @@ prepare_open(Tab, UpdateInPlace) ->
 	    Tmp = mnesia_lib:tab2tmp(Tab),
 	    try ok = mnesia_lib:copy_file(Dat, Tmp)
 	    catch error:Error ->
-		    fatal("Cannot copy dets file ~p to ~p: ~p~n",
+		    fatal("Cannot copy dets file ~tp to ~tp: ~tp~n",
 			  [Dat, Tmp, Error])
 	    end,
 	    Tmp
@@ -1441,7 +1441,7 @@ start_regulator() ->
 		{ok, Pid} ->
 		    Pid;
 		{error, Reason} ->
-		    fatal("Failed to start ~n: ~p~n", [N, Reason])
+		    fatal("Failed to start ~n: ~tp~n", [N, Reason])
 	    end
     end.
 
diff --git a/lib/mnesia/src/mnesia_event.erl b/lib/mnesia/src/mnesia_event.erl
index b06043bc61..49b3990086 100644
--- a/lib/mnesia/src/mnesia_event.erl
+++ b/lib/mnesia/src/mnesia_event.erl
@@ -103,11 +103,11 @@ handle_any_event({mnesia_system_event, Event}, State) ->
 handle_any_event({mnesia_table_event, Event}, State) ->
     handle_table_event(Event, State);
 handle_any_event(Msg, State) ->
-    report_error("~p got unexpected event: ~p~n", [?MODULE, Msg]),
+    report_error("~p got unexpected event: ~tp~n", [?MODULE, Msg]),
     {ok, State}.
 
 handle_table_event({Oper, Record, TransId}, State) ->
-    report_info("~p performed by ~p on record:~n\t~p~n",
+    report_info("~p performed by ~p on record:~n\t~tp~n",
 		[Oper, TransId, Record]),
     {ok, State}.  
 
@@ -155,7 +155,7 @@ handle_system_event({mnesia_down, Node}, State) ->
     end;
 
 handle_system_event({mnesia_overload, Details}, State) ->
-    report_warning("Mnesia is overloaded: ~w~n", [Details]),
+    report_warning("Mnesia is overloaded: ~tw~n", [Details]),
     {ok, State}; 
 
 handle_system_event({mnesia_info, Format, Args}, State) ->
@@ -175,16 +175,16 @@ handle_system_event({mnesia_fatal, Format, Args, BinaryCore}, State) ->
     {ok, State#state{dumped_core = true}};
 
 handle_system_event({inconsistent_database, Reason, Node}, State) ->
-    report_error("mnesia_event got {inconsistent_database, ~w, ~w}~n",
+    report_error("mnesia_event got {inconsistent_database, ~tw, ~w}~n",
 		 [Reason, Node]),
     {ok, State}; 
 
 handle_system_event({mnesia_user, Event}, State) ->
-    report_info("User event: ~p~n", [Event]),
+    report_info("User event: ~tp~n", [Event]),
     {ok, State}; 
 
 handle_system_event(Msg, State) ->
-    report_error("mnesia_event got unexpected system event: ~p~n", [Msg]),
+    report_error("mnesia_event got unexpected system event: ~tp~n", [Msg]),
     {ok, State}.
 
 report_info(Format0, Args0) ->
diff --git a/lib/mnesia/src/mnesia_index.erl b/lib/mnesia/src/mnesia_index.erl
index c79f790973..d121bd01e9 100644
--- a/lib/mnesia/src/mnesia_index.erl
+++ b/lib/mnesia/src/mnesia_index.erl
@@ -420,7 +420,7 @@ make_ram_index(Tab, Storage, [Pos | Tail]) ->
 
 add_ram_index(Tab, Storage, {Pos, _Pref}) ->
     Type = ordered,
-    verbose("Creating index for ~w ~p ~p~n", [Tab, Pos, Type]),
+    verbose("Creating index for ~tw ~p ~p~n", [Tab, Pos, Type]),
     SetOrBag = val({Tab, setorbag}),
     IxValsF = index_vals_f(Storage, Tab, Pos),
     IxFun = fun(Val, Key) -> {{Val, Key}} end,
diff --git a/lib/mnesia/src/mnesia_late_loader.erl b/lib/mnesia/src/mnesia_late_loader.erl
index e273329ffc..e4f8dcf2b9 100644
--- a/lib/mnesia/src/mnesia_late_loader.erl
+++ b/lib/mnesia/src/mnesia_late_loader.erl
@@ -87,13 +87,13 @@ loop(State) ->
 	    loop(State);
 
 	{system, From, Msg} ->
-	    mnesia_lib:dbg_out("~p got {system, ~p, ~p}~n",
+	    mnesia_lib:dbg_out("~p got {system, ~p, ~tp}~n",
 			       [?SERVER_NAME, From, Msg]),
 	    Parent = State#state.supervisor,
 	    sys:handle_system_msg(Msg, From, Parent, ?MODULE, [], State);
 	    
 	Msg ->
-	    mnesia_lib:error("~p got unexpected message: ~p~n",
+	    mnesia_lib:error("~p got unexpected message: ~tp~n",
 			     [?SERVER_NAME, Msg]),
 	    loop(State)
     end.
diff --git a/lib/mnesia/src/mnesia_lib.erl b/lib/mnesia/src/mnesia_lib.erl
index 1fdc656600..53fdd76de8 100644
--- a/lib/mnesia/src/mnesia_lib.erl
+++ b/lib/mnesia/src/mnesia_lib.erl
@@ -467,7 +467,7 @@ pr_other(Var) ->
 	    no -> {node_not_running, node()};
 	    _ -> {no_exists, Var}
 	end,
-    verbose("~p (~p) val(mnesia_gvar, ~w) -> ~p ~p ~n",
+    verbose("~p (~tp) val(mnesia_gvar, ~tw) -> ~p ~tp ~n",
 	    [self(), process_info(self(), registered_name),
 	     Var, Why, erlang:get_stacktrace()]),
     mnesia:abort(Why).
@@ -654,7 +654,7 @@ coredump() ->
 coredump(CrashInfo) ->
     Core = mkcore(CrashInfo),
     Out = core_file(),
-    important("Writing Mnesia core to file: ~p...~p~n", [Out, CrashInfo]),
+    important("Writing Mnesia core to file: ~tp...~tp~n", [Out, CrashInfo]),
     _ = file:write_file(Out, Core),
     Out.
 
@@ -844,7 +844,7 @@ vcore() ->
     case file:list_dir(Cwd) of
 	{ok, Files}->
 	    CoreFiles = lists:sort(lists:zf(Filter, Files)),
-	    show("Mnesia core files: ~p~n", [CoreFiles]),
+	    show("Mnesia core files: ~tp~n", [CoreFiles]),
 	    vcore(lists:last(CoreFiles));
 	Error ->
 	    Error
@@ -853,17 +853,17 @@ vcore() ->
 vcore(Bin) when is_binary(Bin) ->
     Core = binary_to_term(Bin),
     Fun = fun({Item, Info}) ->
-		  show("***** ~p *****~n", [Item]),
+		  show("***** ~tp *****~n", [Item]),
 		  case catch vcore_elem({Item, Info}) of
 		      {'EXIT', Reason} ->
-			  show("{'EXIT', ~p}~n", [Reason]);
+			  show("{'EXIT', ~tp}~n", [Reason]);
 		      _ -> ok
 		  end
 	  end,
     lists:foreach(Fun, Core);
     
 vcore(File) ->
-    show("~n***** Mnesia core: ~p *****~n", [File]),
+    show("~n***** Mnesia core: ~tp *****~n", [File]),
     case file:read_file(File) of
 	{ok, Bin} ->
 	    vcore(Bin);
@@ -879,7 +879,7 @@ vcore_elem({schema_file, {ok, B}}) ->
 
 vcore_elem({logfile, {ok, BinList}}) ->
     Fun = fun({F, Info}) ->
-		  show("----- logfile: ~p -----~n", [F]),
+		  show("----- logfile: ~tp -----~n", [F]),
 		  case Info of
 		      {ok, B} ->
 			  Fname = "/tmp/mnesia_vcore_elem.TMP",
@@ -887,7 +887,7 @@ vcore_elem({logfile, {ok, BinList}}) ->
 			  mnesia_log:view(Fname),
 			  file:delete(Fname);
 		      _ ->
-			  show("~p~n", [Info])
+			  show("~tp~n", [Info])
 		  end
 	  end,
     lists:foreach(Fun, BinList);
@@ -895,12 +895,12 @@ vcore_elem({logfile, {ok, BinList}}) ->
 vcore_elem({crashinfo, {Format, Args}}) ->
     show(Format, Args);
 vcore_elem({gvar, L}) ->
-    show("~p~n", [lists:sort(L)]);
+    show("~tp~n", [lists:sort(L)]);
 vcore_elem({transactions, Info}) ->
     mnesia_tm:display_info(user, Info);
 
 vcore_elem({_Item, Info}) ->
-    show("~p~n", [Info]).
+    show("~tp~n", [Info]).
 
 fix_error(X) ->
     set(last_error, X), %% for debugabililty
@@ -1018,7 +1018,7 @@ report_system_event({'EXIT', Reason}, Event) ->
             end;
 
 	Error ->
-	    Msg = "Mnesia(~p): Cannot report event ~p: ~p (~p)~n",
+	    Msg = "Mnesia(~tp): Cannot report event ~tp: ~tp (~tp)~n",
 	    error_logger:format(Msg, [node(), Event, Reason, Error])
     end,
     ok;
diff --git a/lib/mnesia/src/mnesia_loader.erl b/lib/mnesia/src/mnesia_loader.erl
index c710470a2c..4c6336cb73 100644
--- a/lib/mnesia/src/mnesia_loader.erl
+++ b/lib/mnesia/src/mnesia_loader.erl
@@ -46,7 +46,7 @@ val(Var) ->
 disc_load_table(Tab, Reason) ->
     Storage =  val({Tab, storage_type}),
     Type = val({Tab, setorbag}),
-    dbg_out("Getting table ~p (~p) from disc: ~p~n",
+    dbg_out("Getting table ~tp (~p) from disc: ~tp~n",
 	    [Tab, Storage, Reason]),
     ?eval_debug_fun({?MODULE, do_get_disc_copy},
 		    [{tab, Tab},
@@ -56,7 +56,7 @@ disc_load_table(Tab, Reason) ->
     do_get_disc_copy2(Tab, Reason, Storage, Type).
 
 do_get_disc_copy2(Tab, _Reason, Storage, _Type) when Storage == unknown ->
-    verbose("Local table copy of ~p has recently been deleted, ignored.~n",
+    verbose("Local table copy of ~tp has recently been deleted, ignored.~n",
 	    [Tab]),
     {not_loaded, storage_unknown};
 do_get_disc_copy2(Tab, Reason, Storage, Type) when Storage == disc_copies ->
@@ -199,20 +199,20 @@ net_load_table(Tab, Reason, Ns, _Cs) ->
     try_net_load_table(Tab, Reason, Ns, val({Tab, cstruct})).
 
 try_net_load_table(Tab, _Reason, [], _Cs) ->
-    verbose("Copy failed. No active replicas of ~p are available.~n", [Tab]),
+    verbose("Copy failed. No active replicas of ~tp are available.~n", [Tab]),
     {not_loaded, none_active};
 try_net_load_table(Tab, Reason, Ns, Cs) ->
     Storage = mnesia_lib:cs_to_storage_type(node(), Cs),
     do_get_network_copy(Tab, Reason, Ns, Storage, Cs).
 
 do_get_network_copy(Tab, _Reason, _Ns, unknown, _Cs) ->
-    verbose("Local table copy of ~p has recently been deleted, ignored.~n", [Tab]),
+    verbose("Local table copy of ~tp has recently been deleted, ignored.~n", [Tab]),
     {not_loaded, storage_unknown};
 do_get_network_copy(Tab, Reason, Ns, Storage, Cs) ->
     [Node | Tail] = Ns,
     case lists:member(Node,val({current, db_nodes})) of
 	true ->
-	    dbg_out("Getting table ~p (~p) from node ~p: ~p~n",
+	    dbg_out("Getting table ~tp (~p) from node ~p: ~tp~n",
 		    [Tab, Storage, Node, Reason]),
 	    ?eval_debug_fun({?MODULE, do_get_network_copy},
 			    [{tab, Tab}, {reason, Reason},
@@ -222,7 +222,7 @@ do_get_network_copy(Tab, Reason, Ns, Storage, Cs) ->
 		    set({Tab, load_node}, Node),
 		    set({Tab, load_reason}, Reason),
 		    mnesia_controller:i_have_tab(Tab),
-		    dbg_out("Table ~p copied from ~p to ~p~n", [Tab, Node, node()]),
+		    dbg_out("Table ~tp copied from ~p to ~p~n", [Tab, Node, node()]),
 		    {loaded, ok};
 		Err = {error, _} when element(1, Reason) == dumper ->
 		    {not_loaded,Err};
@@ -286,12 +286,12 @@ init_receiver(Node, Tab,Storage,Cs,Reason) ->
 		  element(1,Reason) == dumper ->
 		{error,Result};
 	    {atomic, {error,Result}} ->
-		fatal("Cannot create table ~p: ~p~n",
+		fatal("Cannot create table ~tp: ~tp~n",
 		      [[Tab, Storage], Result]);
 	    {atomic,  Result} -> Result;
 	    {aborted, nomore} -> restart;
 	    {aborted, _Reas} ->
-		verbose("Receiver failed on ~p from ~p:~nReason: ~p~n",
+		verbose("Receiver failed on ~tp from ~p:~nReason: ~tp~n",
 			[Tab,Node,_Reas]),
 		down  %% either this node or sender is dying
 	end,
@@ -313,7 +313,7 @@ start_remote_sender(Node,Tab,Storage) ->
 	    {SenderPid, TabSize, DetsData};
 	%% Protocol conversion hack
 	{copier_done, Node} ->
-	    verbose("Sender of table ~p crashed on node ~p ~n", [Tab, Node]),
+	    verbose("Sender of table ~tp crashed on node ~p ~n", [Tab, Node]),
 	    down(Tab, Storage)
     end.
 
@@ -374,7 +374,7 @@ do_init_table(Tab,Storage,Cs,SenderPid,
 		    tab_receiver(Node,Tab,Storage,Cs,OrigTabRec);
 		Reason ->
 		    Msg = "[d]ets:init table failed",
-		    verbose("~s: ~p: ~p~n", [Msg, Tab, Reason]),
+		    verbose("~ts: ~tp: ~tp~n", [Msg, Tab, Reason]),
 		    down(Tab, Storage)
 	    end;
 	Error ->
@@ -432,7 +432,7 @@ tab_receiver(Node, Tab, Storage, Cs, OrigTabRec) ->
 
 	%% Protocol conversion hack
 	{copier_done, Node} ->
-	    verbose("Sender of table ~p crashed on node ~p ~n", [Tab, Node]),
+	    verbose("Sender of table ~tp crashed on node ~p ~n", [Tab, Node]),
 	    down(Tab, Storage);
 
 	{'EXIT', Pid, Reason} ->
@@ -490,7 +490,7 @@ ext_load_table(Mod, Alias, Tab, Reason) ->
 ext_init_table(Action, Alias, Mod, Tab, Fun, State, Sender) ->
     case Fun(Action) of
 	{copier_done, Node} ->
-	    verbose("Receiver of table ~p crashed on ~p (more)~n", [Tab, Node]),
+	    verbose("Receiver of table ~tp crashed on ~p (more)~n", [Tab, Node]),
 	    down(Tab, {ext,Alias,Mod});
 	{Data, NewFun} ->
 	    case Mod:receive_data(Data, Alias, Tab, Sender, State) of
@@ -553,7 +553,7 @@ finish_copy(Storage,Tab,Cs,SenderPid,DatBin,OrigTabRec) ->
 	    ok;
 	{error, Reason} ->
 	    Msg = "Failed to handle last",
-	    verbose("~s: ~p: ~p~n", [Msg, Tab, Reason]),
+	    verbose("~ts: ~tp: ~tp~n", [Msg, Tab, Reason]),
 	    down(Tab, Storage)
     end.
 
@@ -859,7 +859,7 @@ send_more(Pid, N, Chunk, DataState, Tab, Storage) ->
 	    send_more(Pid, 1, NewChunk, Init(), Tab, Storage);
 
 	{copier_done, Node} when Node == node(Pid)->
-	    verbose("Receiver of table ~p crashed on ~p (more)~n", [Tab, Node]),
+	    verbose("Receiver of table ~tp crashed on ~p (more)~n", [Tab, Node]),
 	    throw(receiver_died)
     end.
 
@@ -937,7 +937,7 @@ finish_copy(Pid, Tab, Storage, RemoteS, NeedLock) ->
 		    {Pid, no_more} -> % Dont bother about the spurious 'more' message
 			no_more;
 		    {copier_done, Node} ->
-			verbose("Tab receiver ~p crashed (more): ~p~n", [Tab, Node]),
+			verbose("Tab receiver ~tp crashed (more): ~p~n", [Tab, Node]),
 			receiver_died
 		end
 	end,
diff --git a/lib/mnesia/src/mnesia_locker.erl b/lib/mnesia/src/mnesia_locker.erl
index 59fd89059f..073b48abc0 100644
--- a/lib/mnesia/src/mnesia_locker.erl
+++ b/lib/mnesia/src/mnesia_locker.erl
@@ -245,7 +245,7 @@ loop(State) ->
 	    do_stop();
 
 	{system, From, Msg} ->
-	    verbose("~p got {system, ~p, ~p}~n", [?MODULE, From, Msg]),
+	    verbose("~p got {system, ~p, ~tp}~n", [?MODULE, From, Msg]),
 	    Parent = State#state.supervisor,
 	    sys:handle_system_msg(Msg, From, Parent, ?MODULE, [], State);
 
@@ -254,7 +254,7 @@ loop(State) ->
 	    loop(State);
 
 	Msg ->
-	    error("~p got unexpected message: ~p~n", [?MODULE, Msg]),
+	    error("~p got unexpected message: ~tp~n", [?MODULE, Msg]),
 	    loop(State)
     end.
 
diff --git a/lib/mnesia/src/mnesia_log.erl b/lib/mnesia/src/mnesia_log.erl
index 9536effd42..55b1d6e419 100644
--- a/lib/mnesia/src/mnesia_log.erl
+++ b/lib/mnesia/src/mnesia_log.erl
@@ -310,7 +310,7 @@ verify_no_exists(Fname) ->
 	false ->
 	    ok;
 	true ->
-	    fatal("Log file exists: ~p~n", [Fname])
+	    fatal("Log file exists: ~tp~n", [Fname])
     end.
 
 open_log(Name, Header, Fname) ->
@@ -331,7 +331,7 @@ open_log(Name, Header, Fname, Exists, Repair) ->
 
 open_log(Name, Header, Fname, Exists, Repair, Mode) ->
     Args = [{file, Fname}, {name, Name}, {repair, Repair}, {mode, Mode}],
-%%    io:format("~p:open_log: ~p ~p~n", [?MODULE, Name, Fname]),
+%%    io:format("~p:open_log: ~tp ~tp~n", [?MODULE, Name, Fname]),
     case mnesia_monitor:open_log(Args) of
 	{ok, Log} when Exists == true ->
 	    Log;
@@ -344,19 +344,19 @@ open_log(Name, Header, Fname, Exists, Repair, Mode) ->
 	    write_header(Log, Header),
 	    Log;
 	{repaired, Log, _Recover, BadBytes} ->
-	    mnesia_lib:important("Data may be missing, log ~p repaired: Lost ~p bytes~n",
+	    mnesia_lib:important("Data may be missing, log ~tp repaired: Lost ~p bytes~n",
 				 [Fname, BadBytes]),
 	    Log;
 	{error, Reason = {file_error, _Fname, emfile}} ->
-	    fatal("Cannot open log file ~p: ~p~n", [Fname, Reason]);
+	    fatal("Cannot open log file ~tp: ~tp~n", [Fname, Reason]);
 	{error, Reason} when Repair == true ->
 	    file:delete(Fname),
-	    mnesia_lib:important("Data may be missing, Corrupt logfile deleted: ~p, ~p ~n",
+	    mnesia_lib:important("Data may be missing, Corrupt logfile deleted: ~tp, ~tp ~n",
 				 [Fname, Reason]),
 	    %% Create a new
 	    open_log(Name, Header, Fname, false, false, read_write);
 	{error, Reason} ->
-	    fatal("Cannot open log file ~p: ~p~n", [Fname, Reason])
+	    fatal("Cannot open log file ~tp: ~tp~n", [Fname, Reason])
     end.
 
 write_header(Log, Header) ->
@@ -381,7 +381,7 @@ close_log(Log) ->
 	{error, {read_only_mode, Log}} ->
 	    ok;
 	{error, Reason} ->
-	    mnesia_lib:important("Failed syncing ~p to_disk reason ~p ~n",
+	    mnesia_lib:important("Failed syncing ~tp to_disk reason ~tp ~n",
 				 [Log, Reason])
     end,
     mnesia_monitor:close_log(Log).
@@ -464,13 +464,13 @@ chunk_log(_Log, eof) ->
 chunk_log(Log, Cont) ->
     case disk_log:chunk(Log, Cont) of
 	{error, Reason} ->
-	    fatal("Possibly truncated ~p file: ~p~n",
+	    fatal("Possibly truncated ~tp file: ~tp~n",
 		  [Log, Reason]);
 	{C2, Chunk, _BadBytes} ->
 	    %% Read_only case, should we warn about the bad log file?
 	    %% BUGBUG Should we crash if Repair == false ??
 	    %% We got to check this !!
-	    mnesia_lib:important("~p repaired, lost ~p bad bytes~n", [Log, _BadBytes]),
+	    mnesia_lib:important("~tp repaired, lost ~p bad bytes~n", [Log, _BadBytes]),
 	    {C2, Chunk};
 	Other ->
 	    Other
@@ -505,7 +505,7 @@ prepare_decision_log_dump(false, Prev) ->
 	ok ->
 	    prepare_decision_log_dump(true, Prev);
 	{error, Reason} ->
-	    fatal("Cannot rename decision log file ~p -> ~p: ~p~n",
+	    fatal("Cannot rename decision log file ~tp -> ~tp: ~tp~n",
 		     [decision_log_file(), Prev, Reason])
     end;
 prepare_decision_log_dump(true, Prev) ->
@@ -522,7 +522,7 @@ confirm_decision_log_dump() ->
 	ok ->
 	    file:delete(previous_decision_log_file());
 	{error, Reason} ->
-	    fatal("Cannot confirm decision log dump: ~p~n",
+	    fatal("Cannot confirm decision log dump: ~tp~n",
 		  [Reason])
     end.
 
@@ -561,7 +561,7 @@ view() ->
     lists:foreach(fun(F) -> view(F) end, log_files()).
 
 view(File) ->
-    mnesia_lib:show("*****  ~p ***** ~n", [File]),
+    mnesia_lib:show("*****  ~tp ***** ~n", [File]),
     case exists(File) of
 	false ->
 	    nolog;
@@ -574,25 +574,25 @@ view(File) ->
 		{repaired, _, _, _} ->
 		    view_file(start, N);
 		{error, Reason} ->
-		    error("Cannot open log ~p: ~p~n", [File, Reason])
+		    error("Cannot open log ~tp: ~tp~n", [File, Reason])
 	    end
     end.
 
 view_file(C, Log) ->
     case disk_log:chunk(Log, C) of
 	{error, Reason} ->
-	    error("** Possibly truncated FILE ~p~n", [Reason]),
+	    error("** Possibly truncated FILE ~tp~n", [Reason]),
 	    error;
 	eof ->
 	    disk_log:close(Log),
 	    eof;
 	{C2, Terms, _BadBytes} ->
-	    dbg_out("Lost ~p bytes in ~p ~n", [_BadBytes, Log]),
-	    lists:foreach(fun(X) -> mnesia_lib:show("~p~n", [X]) end,
+	    dbg_out("Lost ~p bytes in ~tp ~n", [_BadBytes, Log]),
+	    lists:foreach(fun(X) -> mnesia_lib:show("~tp~n", [X]) end,
 			  Terms),
 	    view_file(C2, Log);
 	{C2, Terms} ->
-	    lists:foreach(fun(X) -> mnesia_lib:show("~p~n", [X]) end,
+	    lists:foreach(fun(X) -> mnesia_lib:show("~tp~n", [X]) end,
 			  Terms),
 	    view_file(C2, Log)
     end.
@@ -750,12 +750,12 @@ abort_write_fun(B, What, Args) ->
 abort_write(B, What, Args, Reason) ->
     Mod = B#backup_args.module,
     Opaque = B#backup_args.opaque,
-    dbg_out("Failed to perform backup. M=~p:F=~p:A=~p -> ~p~n",
+    dbg_out("Failed to perform backup. M=~p:F=~tp:A=~tp -> ~tp~n",
 	    [Mod, What, Args, Reason]),
     try apply(Mod, abort_write, [Opaque]) of
 	{ok, _Res} -> throw({error, Reason})
     catch _:Other ->
-	    error("Failed to abort backup. ~p:~p~p -> ~p~n",
+	    error("Failed to abort backup. ~p:~tp~tp -> ~tp~n",
 		  [Mod, abort_write, [Opaque], Other]),
 	    throw({error, Reason})
     end.
@@ -802,7 +802,7 @@ select_source(Tab, Name, PrevName) ->
 		    {PrevName, retainer};
 		_ ->
 		    %% Do a full backup anyway
-		    dbg_out("Incremental backup escalated to full backup: ~p~n", [Tab]),
+		    dbg_out("Incremental backup escalated to full backup: ~tp~n", [Tab]),
 		    {Name, table}
 	    end
     end.
diff --git a/lib/mnesia/src/mnesia_monitor.erl b/lib/mnesia/src/mnesia_monitor.erl
index 22a24b6dc9..4cfe16dec0 100644
--- a/lib/mnesia/src/mnesia_monitor.erl
+++ b/lib/mnesia/src/mnesia_monitor.erl
@@ -178,10 +178,10 @@ check_protocol([{Node, {reject, _Mon, Version, Protocol}} | Tail], Protocols) ->
 	    [Node, Protocols, Version, Protocol]),
     check_protocol(Tail, Protocols);
 check_protocol([{error, _Reason} | Tail], Protocols) ->
-    dbg_out("~p connect failed error: ~p~n", [?MODULE, _Reason]),
+    dbg_out("~p connect failed error: ~tp~n", [?MODULE, _Reason]),
     check_protocol(Tail, Protocols);
 check_protocol([{badrpc, _Reason} | Tail], Protocols) ->
-    dbg_out("~p connect failed badrpc: ~p~n", [?MODULE, _Reason]),
+    dbg_out("~p connect failed badrpc: ~tp~n", [?MODULE, _Reason]),
     check_protocol(Tail, Protocols);
 check_protocol([], [Protocol | _Protocols]) ->
     set(protocol_version, Protocol),
@@ -246,10 +246,10 @@ start_proc(Who, Mod, Fun, Args) ->
     proc_lib:start_link(mnesia_sp, init_proc, Args2, infinity).
 
 terminate_proc(Who, R, State) when R /= shutdown, R /= killed ->
-    fatal("~p crashed: ~p state: ~p~n", [Who, R, State]);
+    fatal("~p crashed: ~p state: ~tp~n", [Who, R, State]);
 
 terminate_proc(Who, Reason, _State) ->
-    mnesia_lib:verbose("~p terminated: ~p~n", [Who, Reason]),
+    mnesia_lib:verbose("~p terminated: ~tp~n", [Who, Reason]),
     ok.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -294,7 +294,7 @@ init([Parent]) ->
 
 	    {ok, #state{supervisor = Parent}}
     catch _:Reason ->
-	    mnesia_lib:report_fatal("Bad configuration: ~p~n", [Reason]),
+	    mnesia_lib:report_fatal("Bad configuration: ~tp~n", [Reason]),
 	    {stop, {bad_config, Reason}}
     end.
 
@@ -333,7 +333,7 @@ handle_call({mktab, Tab, Args}, _From, State) ->
     catch error:ExitReason ->
 	    Msg = "Cannot create ets table",
 	    Reason = {system_limit, Msg, Tab, Args, ExitReason},
-	    fatal("~p~n", [Reason]),
+	    fatal("~tp~n", [Reason]),
 	    {noreply, State}
     end;
 
@@ -353,7 +353,7 @@ handle_call({open_dets, Tab, Args}, _From, State) ->
 	{error, Reason} ->
 	    Msg = "Cannot open dets table",
 	    Error = {error, {Msg, Tab, Args, Reason}},
-	    fatal("~p~n", [Error]),
+	    fatal("~tp~n", [Error]),
 	    {noreply, State}
     end;
 
@@ -385,7 +385,7 @@ handle_call({reopen_log, Name, Fname, Head}, _From, State) ->
         {error, Reason} ->
 	    Msg = "Cannot rename disk_log file",
             Error = {error, {Msg, Name, Fname, Head, Reason}},
-	    fatal("~p~n", [Error]),
+	    fatal("~tp~n", [Error]),
  	    {noreply, State}
     end;
 
@@ -400,7 +400,7 @@ handle_call({close_log, Name}, _From, State) ->
         {error, Reason} ->
 	    Msg = "Cannot close disk_log file",
             Error = {error, {Msg, Name, Reason}},
-	    fatal("~p~n", [Error]),
+	    fatal("~tp~n", [Error]),
 	    {noreply, State}
     end;
 
@@ -461,7 +461,7 @@ handle_call(init, _From, State) ->
     {reply, EarlyNodes, State2};
 
 handle_call(Msg, _From, State) ->
-    error("~p got unexpected call: ~p~n", [?MODULE, Msg]),
+    error("~p got unexpected call: ~tp~n", [?MODULE, Msg]),
     {noreply, State}.
 
 accept_protocol(Mon, Version, Protocol, From, State) ->
@@ -535,7 +535,7 @@ handle_cast({inconsistent_database, Context, Node}, State) ->
     {noreply, State};
 
 handle_cast(Msg, State) ->
-    error("~p got unexpected cast: ~p~n", [?MODULE, Msg]),
+    error("~p got unexpected cast: ~tp~n", [?MODULE, Msg]),
     {noreply, State}.
 
 %%----------------------------------------------------------------------
@@ -572,7 +572,7 @@ handle_info(Msg = {'EXIT',Pid,_}, State) ->
 	    %% We have probably got an exit signal from
 	    %% disk_log or dets
 	    Hint = "Hint: check that the disk still is writable",
-	    fatal("~p got unexpected info: ~p; ~p~n",
+	    fatal("~p got unexpected info: ~tp; ~p~n",
 		  [?MODULE, Msg, Hint])
     end;
 
@@ -599,13 +599,13 @@ handle_info({disk_log, _Node, Log, Info}, State) ->
 	{truncated, _No} ->
 	    ok;
 	_ ->
-	    mnesia_lib:important("Warning Log file ~p error reason ~s~n",
+	    mnesia_lib:important("Warning Log file ~tp error reason ~ts~n",
 				 [Log, disk_log:format_error(Info)])
     end,
     {noreply, State};
 
 handle_info(Msg, State) ->
-    error("~p got unexpected info (~p): ~p~n", [?MODULE, State, Msg]).
+    error("~p got unexpected info (~tp): ~tp~n", [?MODULE, State, Msg]).
 
 process_q(State = #state{mq=[]}) -> {noreply,State};
 process_q(State = #state{mq=[{info,Msg}|R]}) ->
diff --git a/lib/mnesia/src/mnesia_recover.erl b/lib/mnesia/src/mnesia_recover.erl
index b204fb282f..d792070332 100644
--- a/lib/mnesia/src/mnesia_recover.erl
+++ b/lib/mnesia/src/mnesia_recover.erl
@@ -762,7 +762,7 @@ handle_call(sync, _From, State) ->
     {reply, ok, State};
 
 handle_call(Msg, _From, State) ->
-    error("~p got unexpected call: ~p~n", [?MODULE, Msg]),
+    error("~p got unexpected call: ~tp~n", [?MODULE, Msg]),
     {noreply, State}.
 
 do_log_mnesia_up(Node) ->
@@ -881,7 +881,7 @@ handle_cast({log_dump_overload, Flag}, State) when is_boolean(Flag) ->
     {noreply, State#state{log_dump_overload = Flag}};
 
 handle_cast(Msg, State) ->
-    error("~p got unexpected cast: ~p~n", [?MODULE, Msg]),
+    error("~p got unexpected cast: ~tp~n", [?MODULE, Msg]),
     {noreply, State}.
 
 %%----------------------------------------------------------------------
@@ -927,11 +927,11 @@ handle_info({force_decision, Tid}, State) ->
     end;
 
 handle_info({'EXIT', Pid, R}, State) when Pid == State#state.supervisor ->
-    mnesia_lib:dbg_out("~p was ~p~n",[?MODULE, R]),
+    mnesia_lib:dbg_out("~p was ~tp~n",[?MODULE, R]),
     {stop, shutdown, State};
 
 handle_info(Msg, State) ->
-    error("~p got unexpected info: ~p~n", [?MODULE, Msg]),
+    error("~p got unexpected info: ~tp~n", [?MODULE, Msg]),
     {noreply, State}.
 
 %%----------------------------------------------------------------------
diff --git a/lib/mnesia/src/mnesia_schema.erl b/lib/mnesia/src/mnesia_schema.erl
index f71ee26d7c..83cc19c678 100644
--- a/lib/mnesia/src/mnesia_schema.erl
+++ b/lib/mnesia/src/mnesia_schema.erl
@@ -386,7 +386,7 @@ delete_schema(Ns) when is_list(Ns), Ns /= [] ->
 			[] ->
 			    ok;
 			BadReplies ->
-			    verbose("~s: ~p~n", [Reason, BadReplies]),
+			    verbose("~s: ~tp~n", [Reason, BadReplies]),
 			    {error, {"All nodes not running", BadReplies}}
 		    end;
 		{_Replies, BadNs} ->
@@ -467,10 +467,10 @@ opt_create_dir(UseDir, Dir) when UseDir == true->
         false ->
             case file:make_dir(Dir) of
                 ok ->
-                    verbose("Create Directory ~p~n", [Dir]),
+                    verbose("Create Directory ~tp~n", [Dir]),
                     ok;
                 {error, Reason} ->
-                    verbose("Cannot create mnesia dir ~p~n", [Reason]),
+                    verbose("Cannot create mnesia dir ~tp~n", [Reason]),
                     {error, {"Cannot create Mnesia dir", Dir, Reason}}
             end
     end;
@@ -1470,7 +1470,7 @@ verify_backend_type(Name, Module) ->
         [] ->
 	    ok;
         _Other ->
-	    io:fwrite(user, "Missing backend_type exports: ~p~n", [_Other]),
+	    io:fwrite(user, "Missing backend_type exports: ~tp~n", [_Other]),
             mnesia:abort({bad_type, {backend_type,Name,Module}})
     end.
 
@@ -1776,7 +1776,7 @@ make_del_table_copy(Tab, Node) ->
             mnesia:abort({combine_error, Tab, "Last replica"});
         [] ->
 	    ensure_active(Cs),
-            dbg_out("Last replica deleted in table ~p~n",  [Tab]),
+            dbg_out("Last replica deleted in table ~tp~n",  [Tab]),
             make_delete_table(Tab,  whole_table);
         _ when Tab == schema ->
 	    %% ensure_active(Cs2),
@@ -2178,13 +2178,13 @@ do_write_table_property(Tab, Prop) ->
     case change_prop_in_existing_op(Tab, Prop, write_property, Store) of
 	true ->
 	    dbg_out("change_prop_in_existing_op"
-		    "(~p,~p,write_property,Store) -> true~n",
+		    "(~tp,~p,write_property,Store) -> true~n",
 		    [Tab,Prop]),
 	    %% we have merged the table prop into the create_table op
 	    ok;
 	false ->
 	    dbg_out("change_prop_in_existing_op"
-		    "(~p,~p,write_property,Store) -> false~n",
+		    "(~tp,~p,write_property,Store) -> false~n",
 		    [Tab,Prop]),
 	    %% this must be an existing table
 	    get_tid_ts_and_lock(Tab, none),
@@ -2315,13 +2315,13 @@ do_delete_table_property(Tab, PropKey) ->
     case change_prop_in_existing_op(Tab, PropKey, delete_property, Store) of
 	true ->
 	    dbg_out("change_prop_in_existing_op"
-		    "(~p,~p,delete_property,Store) -> true~n",
+		    "(~tp,~p,delete_property,Store) -> true~n",
 		    [Tab,PropKey]),
 	    %% we have merged the table prop into the create_table op
 	    ok;
 	false ->
 	    dbg_out("change_prop_in_existing_op"
-		    "(~p,~p,delete_property,Store) -> false~n",
+		    "(~tp,~p,delete_property,Store) -> false~n",
 		    [Tab,PropKey]),
 	    %% this must be an existing table
 	    get_tid_ts_and_lock(Tab, none),
@@ -2435,17 +2435,17 @@ prepare_op(_Tid, {op, sync_trans}, {part, CoordPid}) ->
 	{sync_trans, CoordPid} ->
 	    {false, optional};
 	{mnesia_down, _Node} = Else ->
-	    mnesia_lib:verbose("sync_op terminated due to ~p~n", [Else]),
+	    mnesia_lib:verbose("sync_op terminated due to ~tp~n", [Else]),
 	    mnesia:abort(Else);
 	{'EXIT', _, _} = Else ->
-	    mnesia_lib:verbose("sync_op terminated due to ~p~n", [Else]),
+	    mnesia_lib:verbose("sync_op terminated due to ~tp~n", [Else]),
 	    mnesia:abort(Else)
     end;
 
 prepare_op(_Tid, {op, sync_trans}, {coord, Nodes}) ->
     case receive_sync(Nodes, []) of
 	{abort, Reason} ->
-	    mnesia_lib:verbose("sync_op terminated due to ~p~n", [Reason]),
+	    mnesia_lib:verbose("sync_op terminated due to ~tp~n", [Reason]),
 	    mnesia:abort(Reason);
 	Pids ->
 	    [Pid ! {sync_trans, self()} || Pid <- Pids],
@@ -2707,7 +2707,7 @@ prepare_op(_Tid, {op, transform, Fun, TabDef}, _WaitFor) ->
                     {true, Objs, mandatory}
 	    catch _:Reason ->
 		    mnesia_lib:db_fixtable(Storage, Tab, false),
-		    mnesia_lib:important("Transform function failed: '~p' in '~p'",
+		    mnesia_lib:important("Transform function failed: '~tp' in '~tp'",
 					 [Reason, erlang:get_stacktrace()]),
                     exit({"Bad transform function", Tab, Fun, node(), Reason})
             end
@@ -2719,7 +2719,7 @@ prepare_op(_Tid, {op, merge_schema, TabDef}, _WaitFor) ->
 	ok  ->
 	    {true, optional};
 	Error ->
-	    verbose("Merge_Schema ~p failed on ~p: ~p~n", [_Tid,node(),Error]),
+	    verbose("Merge_Schema ~p failed on ~p: ~tp~n", [_Tid,node(),Error]),
 	    mnesia:abort({bad_commit, Error})
     end;
 prepare_op(_Tid, _Op, _WaitFor) ->
@@ -3133,7 +3133,7 @@ ext_real_suffixes(Ext) ->
 		    [M || {_,M} <- Ext])
     catch
         error:E ->
-            verbose("Cant find real ext suffixes (~p)~n", [E]),
+            verbose("Cant find real ext suffixes (~tp)~n", [E]),
             []
     end.
 
@@ -3142,7 +3142,7 @@ ext_tmp_suffixes(Ext) ->
 		    [M || {_,M} <- Ext])
     catch
         error:E ->
-            verbose("Cant find tmp ext suffixes (~p)~n", [E]),
+            verbose("Cant find tmp ext suffixes (~tp)~n", [E]),
             []
     end.
 
@@ -3153,14 +3153,14 @@ info() ->
 
 info(Tab) ->
     Props = get_table_properties(Tab),
-    io:format("-- Properties for ~w table --- ~n",[Tab]),
+    io:format("-- Properties for ~tw table --- ~n",[Tab]),
     info2(Tab, Props).
 info2(Tab, [{cstruct, _V} | Tail]) -> % Ignore cstruct
     info2(Tab, Tail);
 info2(Tab, [{frag_hash, _V} | Tail]) -> % Ignore frag_hash
     info2(Tab, Tail);
 info2(Tab, [{P, V} | Tail]) ->
-    io:format("~-20w -> ~p~n",[P,V]),
+    io:format("~-20tw -> ~tp~n",[P,V]),
     info2(Tab, Tail);
 info2(_, []) ->
     io:format("~n", []).
@@ -3726,7 +3726,7 @@ merge_versions(AnythingNew, Cs, RemoteCs, Force) ->
 	    ok;
 	true ->
 	    Str = io_lib:format("Bad cookies. Cannot merge definitions of "
-				"table ~w. Local = ~w, Remote = ~w~n",
+				"table ~tw. Local = ~w, Remote = ~w~n",
 				[Cs#cstruct.name, Cs, RemoteCs]),
 	    throw(Str)
     end,
@@ -3746,7 +3746,7 @@ merge_versions(AnythingNew, Cs, RemoteCs, Force) ->
 	    do_merge_versions(AnythingNew, Cs, RemoteCs);
 	true ->
 	    Str1 = io_lib:format("Cannot merge definitions of "
-				"table ~w. Local = ~w, Remote = ~w~n",
+				"table ~tw. Local = ~w, Remote = ~w~n",
 				[Cs#cstruct.name, Cs, RemoteCs]),
 	    throw(Str1)
     end.
diff --git a/lib/mnesia/src/mnesia_subscr.erl b/lib/mnesia/src/mnesia_subscr.erl
index c2748f5bae..dfaa20d2d3 100644
--- a/lib/mnesia/src/mnesia_subscr.erl
+++ b/lib/mnesia/src/mnesia_subscr.erl
@@ -264,7 +264,7 @@ handle_call({change, How}, _From, State) ->
     {reply, Reply, State};
 
 handle_call(Msg, _From, State) ->
-    error("~p got unexpected call: ~p~n", [?MODULE, Msg]),
+    error("~p got unexpected call: ~tp~n", [?MODULE, Msg]),
     {noreply, State}.
 
 %%----------------------------------------------------------------------
@@ -274,7 +274,7 @@ handle_call(Msg, _From, State) ->
 %%          {stop, Reason, State}            (terminate/2 is called)
 %%----------------------------------------------------------------------
 handle_cast(Msg, State) ->
-    error("~p got unexpected cast: ~p~n", [?MODULE, Msg]),
+    error("~p got unexpected cast: ~tp~n", [?MODULE, Msg]),
     {noreply, State}.
 
 %%----------------------------------------------------------------------
@@ -292,7 +292,7 @@ handle_info({'EXIT', Pid, _Reason}, State) ->
     {noreply, State};
 
 handle_info(Msg, State) ->
-    error("~p got unexpected info: ~p~n", [?MODULE, Msg]),
+    error("~p got unexpected info: ~tp~n", [?MODULE, Msg]),
     {noreply, State}.
 
 %%----------------------------------------------------------------------
diff --git a/lib/mnesia/src/mnesia_text.erl b/lib/mnesia/src/mnesia_text.erl
index 21adca813a..7d24d09472 100644
--- a/lib/mnesia/src/mnesia_text.erl
+++ b/lib/mnesia/src/mnesia_text.erl
@@ -87,18 +87,18 @@ validate_tab(_) -> error(badtab).
 make_tabs([{Tab, Def} | Tail]) ->
     try mnesia:table_info(Tab, where_to_read) of
 	Node ->
-	    io:format("** Table ~w already exists on ~p, just entering data~n",
+	    io:format("** Table ~tw already exists on ~p, just entering data~n",
 		      [Tab, Node]),
 	    make_tabs(Tail)
     catch exit:_ -> %% non-existing table
 	    case mnesia:create_table(Tab, Def) of
 		{aborted, Reason} ->
-		    io:format("** Failed to create table ~w ~n"
-			      "** Reason = ~w, Args = ~p~n", 
+		    io:format("** Failed to create table ~tw ~n"
+			      "** Reason = ~tw, Args = ~tp~n", 
 			      [Tab, Reason, Def]),
 		    [Tab | make_tabs(Tail)];
 		_ -> 
-		    io:format("New table ~w~n", [Tab]),
+		    io:format("New table ~tw~n", [Tab]),
 		    make_tabs(Tail)
 	    end
     end;
@@ -139,12 +139,12 @@ collect_data(Tabs, [{Line, Term} | Tail]) when is_tuple(Term) ->
 	{value, _} ->
 	    [Term | collect_data(Tabs, Tail)];
 	_Other ->
-	    io:format("Object:~p at line ~w unknown\n", [Term,Line]),
+	    io:format("Object:~tp at line ~w unknown\n", [Term,Line]),
 	    error(undefined_object)
     end;
 collect_data(_Tabs, []) -> [];
 collect_data(_Tabs, [H|_T]) ->
-    io:format("Object:~p unknown\n", [H]),
+    io:format("Object:~tp unknown\n", [H]),
     error(undefined_object).
 
 error(What) -> throw({error, What}).
@@ -178,7 +178,7 @@ read_term_from_stream(Stream, File, Line) ->
 		    {ok, {Line, Term}, EndLine};
 		{error, {NewLine,Mod,What}} ->
 		    Str = Mod:format_error(What),
-		    io:format("Error in line:~p of:~p ~s\n",
+		    io:format("Error in line:~p of:~tp ~ts\n",
 			      [NewLine, File, Str]),
 		    error
 	    end;
diff --git a/lib/mnesia/src/mnesia_tm.erl b/lib/mnesia/src/mnesia_tm.erl
index 305bf14bcf..ebf580d09e 100644
--- a/lib/mnesia/src/mnesia_tm.erl
+++ b/lib/mnesia/src/mnesia_tm.erl
@@ -314,7 +314,7 @@ doit_loop(#state{coordinators=Coordinators,participants=Participants,supervisor=
 	    ?eval_debug_fun({?MODULE, do_abort, pre}, [{tid, Tid}]),
 	    case gb_trees:lookup(Tid, Participants) of
 		none ->
-		    verbose("Tried to abort a non participant transaction ~p: ~p~n",
+		    verbose("Tried to abort a non participant transaction ~p: ~tp~n",
 			    [Tid, Reason]),
 		    mnesia_locker:release_tid(Tid),
 		    doit_loop(State);
@@ -417,7 +417,7 @@ doit_loop(#state{coordinators=Coordinators,participants=Participants,supervisor=
 	{From, {unblock_me, Tab}} ->
 	    case lists:member(Tab, State#state.blocked_tabs) of
 		false ->
-		    verbose("Wrong dirty Op blocked on ~p ~p ~p",
+		    verbose("Wrong dirty Op blocked on ~p ~tp ~p",
 			    [node(), Tab, From]),
 		    reply(From, unblocked),
 		    doit_loop(State);
@@ -466,11 +466,11 @@ doit_loop(#state{coordinators=Coordinators,participants=Participants,supervisor=
 	    end;
 
 	{system, From, Msg} ->
-	    dbg_out("~p got {system, ~p, ~p}~n", [?MODULE, From, Msg]),
+	    dbg_out("~p got {system, ~p, ~tp}~n", [?MODULE, From, Msg]),
 	    sys:handle_system_msg(Msg, From, Sup, ?MODULE, [], State);
 
 	Msg ->
-	    verbose("** ERROR ** ~p got unexpected message: ~p~n", [?MODULE, Msg]),
+	    verbose("** ERROR ** ~p got unexpected message: ~tp~n", [?MODULE, Msg]),
 	    doit_loop(State)
     end.
 
@@ -556,7 +556,7 @@ handle_exit(Pid, Reason, State) ->
 		    %% We got exit from a local fool
 		    doit_loop(State);
 		{P = #participant{}, _RestP} ->
-		    fatal("Participant ~p in transaction ~p died ~p~n",
+		    fatal("Participant ~p in transaction ~p died ~tp~n",
 			  [P#participant.pid, P#participant.tid, Reason]),
 		    NewPs = gb_trees:delete(P#participant.tid,State#state.participants),
 		    doit_loop(State#state{participants = NewPs})
@@ -598,7 +598,7 @@ recover_coordinator(Tid, Etabs) ->
 		    ok    %% to the new nested trans store.
 	    end
     catch _:Reason ->
-	    dbg_out("Recovery of coordinator ~p failed:~n",
+	    dbg_out("Recovery of coordinator ~p failed: ~tp~n",
 		    [Tid, {Reason, erlang:get_stacktrace()}]),
 	    Protocol = asym_trans,
 	    tell_outcome(Tid, Protocol, node(), CheckNodes, TellNodes)
@@ -941,7 +941,7 @@ decr(_X) -> 0.
 
 return_abort(Fun, Args, Reason)  ->
     {_Mod, Tid, Ts} = get(mnesia_activity_state),
-    dbg_out("Transaction ~p calling ~p with ~p failed: ~n ~p~n",
+    dbg_out("Transaction ~p calling ~tp with ~tp failed: ~n ~tp~n",
 	    [Tid, Fun, Args, Reason]),
     OldStore = Ts#tidstore.store,
     Nodes = get_elements(nodes, OldStore),
@@ -1714,7 +1714,7 @@ commit_participant(Coord, Tid, Bin, C0, DiscNs, _RamNs) ->
 			    mnesia_schema:undo_prepare_commit(Tid, C0);
 
 			Msg ->
-			    verbose("** ERROR ** commit_participant ~p, got unexpected msg: ~p~n",
+			    verbose("** ERROR ** commit_participant ~p, got unexpected msg: ~tp~n",
 				    [Tid, Msg])
 		    end;
 		{Tid, {do_abort, Reason}} ->
@@ -1730,7 +1730,7 @@ commit_participant(Coord, Tid, Bin, C0, DiscNs, _RamNs) ->
 
 		Msg ->
 		    reply(Coord, {do_abort, Tid, self(), {bad_commit,internal}}),
-		    verbose("** ERROR ** commit_participant ~p, got unexpected msg: ~p~n",
+		    verbose("** ERROR ** commit_participant ~p, got unexpected msg: ~tp~n",
 			    [Tid, Msg])
 	    end
     catch _:Reason ->
@@ -1804,7 +1804,7 @@ do_update(Tid, Storage, [Op | Ops], OldRes) ->
 	    %%         Determine actual storage type and try again.
 	    %% BUGBUG: Updates may be lost if table is transformed.
 	    ST = erlang:get_stacktrace(),
-	    verbose("do_update in ~w failed: ~p -> {'EXIT', ~p}~n",
+	    verbose("do_update in ~w failed: ~tp -> {'EXIT', ~tp}~n",
 		    [Tid, Op, {Reason, ST}]),
 	    do_update(Tid, Storage, Ops, OldRes)
     end;
@@ -1919,7 +1919,7 @@ do_snmp(Tid, [Head|Tail]) ->
 	    %% deleted our local replica or recently deattached
 	    %% the snmp table
 	    ST = erlang:get_stacktrace(),
-	    verbose("do_snmp in ~w failed: ~p -> {'EXIT', ~p}~n",
+	    verbose("do_snmp in ~w failed: ~tp -> {'EXIT', ~tp}~n",
 		    [Tid, Head, {Reason, ST}])
     end,
     do_snmp(Tid, Tail).
@@ -2151,7 +2151,7 @@ pr_participant(Stream, P) ->
 	    true -> Commit0
 	end,
     pr_tid(Stream, P#participant.tid),
-    io:format(Stream, "with participant objects ~p~n", [Commit]).
+    io:format(Stream, "with participant objects ~tp~n", [Commit]).
 
 
 pr_tid(Stream, Tid) ->
@@ -2193,7 +2193,7 @@ search_pr_participant(S, [ P | Tail]) ->
 		    true -> Commit0
 		end,
 
-	    io:format("~p~n", [Commit]),
+	    io:format("~tp~n", [Commit]),
 	    search_pr_participant(S,Tail);  %% !!!!!
 	true ->
 	    search_pr_participant(S, Tail)
@@ -2214,12 +2214,12 @@ display_pid_info(Pid) ->
 	    Reds  = fetch(reductions, Info),
 	    LM = length(fetch(messages, Info)),
 	    pformat(io_lib:format("~p", [Pid]),
-		    io_lib:format("~p", [Call]),
-		    io_lib:format("~p", [Curr]), Reds, LM)
+		    io_lib:format("~tp", [Call]),
+		    io_lib:format("~tp", [Curr]), Reds, LM)
     end.
 
 pformat(A1, A2, A3, A4, A5) ->
-    io:format( "~-12s ~-21s ~-21s ~9w ~4w~n", [A1,A2,A3,A4,A5]).
+    io:format( "~-12s ~-21ts ~-21ts ~9w ~4w~n", [A1,A2,A3,A4,A5]).
 
 fetch(Key, Info) ->
     case lists:keysearch(Key, 1, Info) of
diff --git a/lib/mnesia/test/mnesia_SUITE.erl b/lib/mnesia/test/mnesia_SUITE.erl
index 3ec4847c5d..279744dbb0 100644
--- a/lib/mnesia/test/mnesia_SUITE.erl
+++ b/lib/mnesia/test/mnesia_SUITE.erl
@@ -21,7 +21,12 @@
 %%
 -module(mnesia_SUITE).
 -author('[email protected]').
--compile([export_all]).
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_suite/1, end_per_suite/1,
+         init_per_group/2, end_per_group/2,
+         suite/0, all/0, groups/0]).
+-export([app/1, appup/1, clean_up_suite/1, silly/0]).
+
 -include_lib("common_test/include/ct.hrl").
 -include("mnesia_test_lib.hrl").
 
@@ -92,16 +97,8 @@ groups() ->
      %% benchmarks
      {heavy, [], [{group, measure}]},
      {measure, [], [{mnesia_measure_test, all}]},
-     {prediction, [],
-      [{group, mnesia_measure_test, prediction}]},
-     {fairness, [],
-      [{group, mnesia_measure_test, fairness}]},
      {benchmarks, [],
       [{group, mnesia_measure_test, benchmarks}]},
-     {consumption, [],
-      [{group, mnesia_measure_test, consumption}]},
-     {scalability, [],
-      [{group, mnesia_measure_test, scalability}]},
      %% This test suite is an extract of the grand Mnesia suite
      %% it contains OTP R4B specific test cases
      {otp_r4b, [],
diff --git a/lib/mnesia/test/mnesia_atomicity_test.erl b/lib/mnesia/test/mnesia_atomicity_test.erl
index cc32ba3826..58a5dc1d40 100644
--- a/lib/mnesia/test/mnesia_atomicity_test.erl
+++ b/lib/mnesia/test/mnesia_atomicity_test.erl
@@ -22,9 +22,37 @@
 -module(mnesia_atomicity_test).
 -author('[email protected]').
 -author('[email protected]').
--compile([export_all]).
 -include("mnesia_test_lib.hrl").
 
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+-export([explicit_abort_in_middle_of_trans/1,
+         runtime_error_in_middle_of_trans/1,
+         mnesia_down_during_infinite_trans/1,
+         kill_self_in_middle_of_trans/1, throw_in_middle_of_trans/1,
+         lock_waiter_sw_r/1, lock_waiter_sw_rt/1, lock_waiter_sw_wt/1,
+         lock_waiter_wr_r/1, lock_waiter_srw_r/1, lock_waiter_sw_sw/1,
+         lock_waiter_sw_w/1, lock_waiter_sw_wr/1, lock_waiter_sw_srw/1,
+         lock_waiter_wr_wt/1, lock_waiter_srw_wt/1,
+         lock_waiter_wr_sw/1, lock_waiter_srw_sw/1, lock_waiter_wr_w/1,
+         lock_waiter_srw_w/1, lock_waiter_r_sw/1, lock_waiter_r_w/1,
+         lock_waiter_r_wt/1, lock_waiter_rt_sw/1, lock_waiter_rt_w/1,
+         lock_waiter_rt_wt/1, lock_waiter_wr_wr/1,
+         lock_waiter_srw_srw/1, lock_waiter_wt_r/1, lock_waiter_wt_w/1,
+         lock_waiter_wt_rt/1, lock_waiter_wt_wt/1, lock_waiter_wt_wr/1,
+         lock_waiter_wt_srw/1, lock_waiter_wt_sw/1, lock_waiter_w_wr/1,
+         lock_waiter_w_srw/1, lock_waiter_w_sw/1, lock_waiter_w_r/1,
+         lock_waiter_w_w/1, lock_waiter_w_rt/1, lock_waiter_w_wt/1,
+         restart_r_one/1, restart_w_one/1, restart_rt_one/1,
+         restart_wt_one/1, restart_wr_one/1, restart_sw_one/1,
+         restart_r_two/1, restart_w_two/1, restart_rt_two/1,
+         restart_wt_two/1, restart_wr_two/1, restart_sw_two/1
+        ]
+       ).
+
+-export([perform_restarted_transaction/1, sync_tid_release/0]).
+
 init_per_testcase(Func, Conf) ->
     mnesia_test_lib:init_per_testcase(Func, Conf).
 
diff --git a/lib/mnesia/test/mnesia_bench_SUITE.erl b/lib/mnesia/test/mnesia_bench_SUITE.erl
index 7c86db383d..5cc01867c4 100644
--- a/lib/mnesia/test/mnesia_bench_SUITE.erl
+++ b/lib/mnesia/test/mnesia_bench_SUITE.erl
@@ -21,7 +21,13 @@
 %%
 -module(mnesia_bench_SUITE).
 -author('[email protected]').
--compile(export_all).
+
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_suite/1, end_per_suite/1,
+         init_per_group/2, end_per_group/2,
+         suite/0, all/0, groups/0]).
+
+-export([tpcb_conflict_ramcopies/1, tpcb_conflict_disk_only_copies/1]).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 suite() -> [{ct_hooks,[{ts_install_cth,[{nodenames,2}]}]}].
diff --git a/lib/mnesia/test/mnesia_consistency_test.erl b/lib/mnesia/test/mnesia_consistency_test.erl
index 2fe1bd34e6..7a2678cee3 100644
--- a/lib/mnesia/test/mnesia_consistency_test.erl
+++ b/lib/mnesia/test/mnesia_consistency_test.erl
@@ -21,7 +21,78 @@
 %%
 -module(mnesia_consistency_test).
 -author('[email protected]').
--compile([export_all]).
+
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([consistency_after_change_table_copy_type/1,
+         consistency_after_rename_of_node/1,
+         consistency_after_restart_1_ram/1,
+         consistency_after_restart_1_disc/1,
+         consistency_after_restart_1_disc_only/1,
+         consistency_after_restart_2_ram/1,
+         consistency_after_restart_2_disc/1,
+         consistency_after_restart_2_disc_only/1,
+         consistency_after_dump_tables_1_ram/1,
+         consistency_after_dump_tables_2_ram/1,
+         consistency_after_add_replica_2_ram/1,
+         consistency_after_add_replica_2_disc/1,
+         consistency_after_add_replica_2_disc_only/1,
+         consistency_after_add_replica_3_ram/1,
+         consistency_after_add_replica_3_disc/1,
+         consistency_after_add_replica_3_disc_only/1,
+         consistency_after_del_replica_2_ram/1,
+         consistency_after_del_replica_2_disc/1,
+         consistency_after_del_replica_2_disc_only/1,
+         consistency_after_del_replica_3_ram/1,
+         consistency_after_del_replica_3_disc/1,
+         consistency_after_del_replica_3_disc_only/1,
+         consistency_after_move_replica_2_ram/1,
+         consistency_after_move_replica_2_disc/1,
+         consistency_after_move_replica_2_disc_only/1,
+         consistency_after_move_replica_3_ram/1,
+         consistency_after_move_replica_3_disc/1,
+         consistency_after_move_replica_3_disc_only/1,
+         consistency_after_transform_table_ram/1,
+         consistency_after_transform_table_disc/1,
+         consistency_after_transform_table_disc_only/1,
+         consistency_after_fallback_2_ram/1,
+         consistency_after_fallback_2_disc/1,
+         consistency_after_fallback_2_disc_only/1,
+         consistency_after_fallback_3_ram/1,
+         consistency_after_fallback_3_disc/1,
+         consistency_after_fallback_3_disc_only/1,
+         consistency_after_restore_clear_ram/1,
+         consistency_after_restore_clear_disc/1,
+         consistency_after_restore_clear_disc_only/1,
+         consistency_after_restore_recreate_ram/1,
+         consistency_after_restore_recreate_disc/1,
+         consistency_after_restore_recreate_disc_only/1,
+         updates_during_checkpoint_activation_1_ram/1,
+         updates_during_checkpoint_activation_1_disc/1,
+         updates_during_checkpoint_activation_1_disc_only/1,
+         updates_during_checkpoint_activation_2_ram/1,
+         updates_during_checkpoint_activation_2_disc/1,
+         updates_during_checkpoint_activation_2_disc_only/1,
+         updates_during_checkpoint_activation_3_ram/1,
+         updates_during_checkpoint_activation_3_disc/1,
+         updates_during_checkpoint_activation_3_disc_only/1,
+         updates_during_checkpoint_iteration_2_ram/1,
+         updates_during_checkpoint_iteration_2_disc/1,
+         updates_during_checkpoint_iteration_2_disc_only/1,
+         load_table_with_activated_checkpoint_ram/1,
+         load_table_with_activated_checkpoint_disc/1,
+         load_table_with_activated_checkpoint_disc_only/1,
+         add_table_copy_to_table_checkpoint_ram/1,
+         add_table_copy_to_table_checkpoint_disc/1,
+         add_table_copy_to_table_checkpoint_disc_only/1,
+         inst_fallback_process_dies/1, fatal_when_inconsistency/1,
+         after_delete/1,cause_switch_before/1, cause_switch_after/1,
+         cause_abort_before/1, cause_abort_after/1,
+         change_schema_before/1, change_schema_after/1]).
+
+-export([change_tab/3]).
 
 -include("mnesia_test_lib.hrl").
 
diff --git a/lib/mnesia/test/mnesia_cost.erl b/lib/mnesia/test/mnesia_cost.erl
index a3fc8dfe20..4d0dd7b0ee 100644
--- a/lib/mnesia/test/mnesia_cost.erl
+++ b/lib/mnesia/test/mnesia_cost.erl
@@ -20,7 +20,7 @@
 
 %%
 -module(mnesia_cost).
--compile(export_all).
+-export([go/0, go/1]).
 
 %% This code exercises the mnesia system and produces a bunch
 %% of measurements on what various things cost
@@ -156,64 +156,3 @@ do_dirty(I, F) when I /= 0 ->
     F(),
     do_dirty(I-1, F);
 do_dirty(_,_) -> ok.
-
-    
-    
-table_load([N1,N2| _ ] = Ns) ->    
-    Nodes = [N1,N2],
-    rpc:multicall(Ns, mnesia, lkill, []),
-    ok = mnesia:delete_schema(Ns),
-    ok = mnesia:create_schema(Nodes),
-    rpc:multicall(Nodes, mnesia, start, []),
-    TabDef = [{disc_copies,[N1]},{ram_copies,[N2]},
-	      {attributes,record_info(fields,item)},{record_name,item}],
-    Tabs   = [list_to_atom("tab" ++ integer_to_list(I)) || I <- lists:seq(1,400)],
-    
-    [mnesia:create_table(Tab,TabDef) || Tab <- Tabs],
-
-%%     InitTab = fun(Tab) ->
-%% 		      mnesia:write_lock_table(Tab),
-%% 		      InitRec = fun(Key) -> mnesia:write(Tab,#item{a=Key},write) end,
-%% 		      lists:foreach(InitRec, lists:seq(1,100))
-%% 	      end,
-%%     
-%%    {Time,{atomic,ok}} = timer:tc(mnesia,transaction, [fun() ->lists:foreach(InitTab, Tabs) end]),
-    mnesia:dump_log(),
-%%    io:format("Init took ~p msec ~n", [Time/1000]),
-    rpc:call(N2, mnesia, stop, []),    timer:sleep(1000),
-    mnesia:stop(), timer:sleep(500),
-    %% Warmup
-    ok = mnesia:start([{no_table_loaders, 1}]),    
-    timer:tc(mnesia, wait_for_tables, [Tabs, infinity]),
-    mnesia:dump_log(),
-    rpc:call(N2, mnesia, dump_log, []),
-    io:format("Initialized ~n",[]),
-
-    mnesia:stop(), timer:sleep(1000),
-    ok = mnesia:start([{no_table_loaders, 1}]),
-    {T1, ok} = timer:tc(mnesia, wait_for_tables, [Tabs, infinity]),
-    io:format("Loading from disc with 1 loader ~p msec~n",[T1/1000]),
-    mnesia:stop(), timer:sleep(1000),
-    ok = mnesia:start([{no_table_loaders, 4}]),
-    {T2, ok} = timer:tc(mnesia, wait_for_tables, [Tabs, infinity]),
-    io:format("Loading from disc with 4 loader ~p msec~n",[T2/1000]),
-
-    %% Warmup
-    rpc:call(N2, ?MODULE, remote_load, [Tabs,4]),
-    io:format("Initialized ~n",[]),
-
-    
-    T3 = rpc:call(N2, ?MODULE, remote_load, [Tabs,1]),
-    io:format("Loading from net with 1 loader ~p msec~n",[T3/1000]),
-    
-    T4 = rpc:call(N2, ?MODULE, remote_load, [Tabs,4]),
-    io:format("Loading from net with 4 loader ~p msec~n",[T4/1000]),
-
-    ok.
-
-remote_load(Tabs,Loaders) ->
-    ok = mnesia:start([{no_table_loaders, Loaders}]),
-%%    io:format("~p ~n", [mnesia_controller:get_info(500)]),
-    {Time, ok} = timer:tc(mnesia, wait_for_tables, [Tabs, infinity]),
-    timer:sleep(1000), mnesia:stop(), timer:sleep(1000),
-    Time.
diff --git a/lib/mnesia/test/mnesia_dirty_access_test.erl b/lib/mnesia/test/mnesia_dirty_access_test.erl
index 6d970ac990..92124ebc65 100644
--- a/lib/mnesia/test/mnesia_dirty_access_test.erl
+++ b/lib/mnesia/test/mnesia_dirty_access_test.erl
@@ -21,9 +21,37 @@
 %%
 -module(mnesia_dirty_access_test).
 -author('[email protected]').
--compile([export_all]).
 -include("mnesia_test_lib.hrl").
 
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([dirty_write_ram/1, dirty_write_disc/1, dirty_write_disc_only/1, dirty_write_xets/1,
+         dirty_read_ram/1, dirty_read_disc/1, dirty_read_disc_only/1, dirty_read_xets/1,
+         dirty_update_counter_ram/1, dirty_update_counter_disc/1,
+         dirty_update_counter_disc_only/1, dirty_update_counter_xets/1,
+         dirty_delete_ram/1, dirty_delete_disc/1, dirty_delete_disc_only/1, dirty_delete_xets/1,
+         dirty_delete_object_ram/1, dirty_delete_object_disc/1,
+         dirty_delete_object_disc_only/1, dirty_delete_object_xets/1,
+         dirty_match_object_ram/1, dirty_match_object_disc/1,
+         dirty_match_object_disc_only/1, dirty_match_object_xets/1,
+         dirty_index_match_object_ram/1, dirty_index_match_object_disc/1,
+         dirty_index_match_object_disc_only/1, dirty_index_match_object_xets/1,
+         dirty_index_read_ram/1, dirty_index_read_disc/1,
+         dirty_index_read_disc_only/1, dirty_index_read_xets/1,
+         dirty_index_update_set_ram/1,  dirty_index_update_set_disc/1,
+         dirty_index_update_set_disc_only/1,  dirty_index_update_set_xets/1,
+         dirty_index_update_bag_ram/1, dirty_index_update_bag_disc/1,
+         dirty_index_update_bag_disc_only/1, dirty_index_update_bag_xets/1,
+         dirty_iter_ram/1, dirty_iter_disc/1, dirty_iter_disc_only/1,dirty_iter_xets/1,
+         del_table_copy_1/1, del_table_copy_2/1, del_table_copy_3/1,
+         add_table_copy_1/1, add_table_copy_2/1, add_table_copy_3/1,
+         add_table_copy_4/1, move_table_copy_1/1, move_table_copy_2/1,
+         move_table_copy_3/1, move_table_copy_4/1]).
+
+-export([update_trans/3]).
+
 init_per_testcase(Func, Conf) ->
     mnesia_test_lib:init_per_testcase(Func, Conf).
 
diff --git a/lib/mnesia/test/mnesia_durability_test.erl b/lib/mnesia/test/mnesia_durability_test.erl
index 97bc84a2d8..2fac5cac82 100644
--- a/lib/mnesia/test/mnesia_durability_test.erl
+++ b/lib/mnesia/test/mnesia_durability_test.erl
@@ -21,7 +21,33 @@
 %%
 -module(mnesia_durability_test).
 -author('[email protected]').
--compile([export_all]).
+
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([durability_of_disc_copies/1,
+         durability_of_disc_only_copies/1,
+         load_latest_data/1, load_local_contents_directly/1,
+         load_directly_when_all_are_ram_copiesA/1,
+         load_directly_when_all_are_ram_copiesB/1,
+         load_when_last_replica_becomes_available/1,
+         load_when_down_from_all_other_replica_nodes/1,
+         late_load_transforms_into_disc_load/1,
+         late_load_leads_to_hanging/1,
+         force_load_when_nobody_intents_to_load/1,
+         force_load_when_someone_has_decided_to_load/1,
+         force_load_when_someone_else_has_loaded/1,
+         force_load_when_we_has_loaded/1,
+         force_load_on_a_non_local_table/1,
+         force_load_when_the_table_does_not_exist/1,
+         late_load_all_ram_cs_ram_nodes1/1,
+         late_load_all_ram_cs_ram_nodes2/1,
+         master_nodes/1, starting_master_nodes/1,
+         master_on_non_local_tables/1,
+         remote_force_load_with_local_master_node/1,
+         dump_ram_copies/1, dump_disc_copies/1, dump_disc_only/1]).
+
 -include("mnesia_test_lib.hrl").
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/lib/mnesia/test/mnesia_evil_backup.erl b/lib/mnesia/test/mnesia_evil_backup.erl
index 0fa72c4305..45b11f2f3f 100644
--- a/lib/mnesia/test/mnesia_evil_backup.erl
+++ b/lib/mnesia/test/mnesia_evil_backup.erl
@@ -28,10 +28,23 @@
 
 -module(mnesia_evil_backup).
 -author('[email protected]').
--compile(export_all).
 -include("mnesia_test_lib.hrl").
 
-%%-export([Function/Arity, ...]).
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([backup/1, bad_backup/1, global_backup_checkpoint/1,
+         traverse_backup/1,
+         selective_backup_checkpoint/1,
+         incremental_backup_checkpoint/1, install_fallback/1,
+         uninstall_fallback/1, local_fallback/1,
+         sops_with_checkpoint/1,
+         restore_errors/1, restore_clear/1, restore_keep/1,
+         restore_recreate/1, restore_clear_ram/1
+        ]).
+
+-export([check_tab/2]).
 
 init_per_testcase(Func, Conf) ->
     mnesia_test_lib:init_per_testcase(Func, Conf).
diff --git a/lib/mnesia/test/mnesia_evil_coverage_test.erl b/lib/mnesia/test/mnesia_evil_coverage_test.erl
index 6e34040bc4..074967469b 100644
--- a/lib/mnesia/test/mnesia_evil_coverage_test.erl
+++ b/lib/mnesia/test/mnesia_evil_coverage_test.erl
@@ -23,7 +23,32 @@
 -author('[email protected]').
 -include("mnesia_test_lib.hrl").
 
--compile([export_all]).
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([system_info/1, table_info/1, error_description/1,
+         db_node_lifecycle/1, evil_delete_db_node/1, start_and_stop/1,
+         checkpoint/1, table_lifecycle/1, storage_options/1,
+         add_copy_conflict/1, add_copy_when_going_down/1,
+         replica_management/1, clear_table_during_load/1,
+         schema_availability/1, local_content/1,
+         replica_location/1, user_properties/1, unsupp_user_props/1,
+         sorted_ets/1,
+         change_table_access_mode/1, change_table_load_order/1,
+         set_master_nodes/1, offline_set_master_nodes/1,
+         dump_tables/1, dump_log/1, wait_for_tables/1, force_load_table/1,
+         snmp_open_table/1, snmp_close_table/1, snmp_get_next_index/1,
+         snmp_get_row/1, snmp_get_mnesia_key/1, snmp_update_counter/1,
+         snmp_order/1, subscribe_standard/1, subscribe_extended/1,
+         foldl/1, info/1, schema_0/1, schema_1/1, view_0/1, view_1/1, view_2/1,
+         lkill/1, kill/1,
+         record_name_dirty_access_ram/1,
+         record_name_dirty_access_disc/1,
+         record_name_dirty_access_disc_only/1,
+         record_name_dirty_access_xets/1]).
+
+-export([info_check/8]).
 
 -define(cleanup(N, Config),
 	mnesia_test_lib:prepare_test_case([{reload_appls, [mnesia]}],
diff --git a/lib/mnesia/test/mnesia_examples_test.erl b/lib/mnesia/test/mnesia_examples_test.erl
index 808e62d9c2..f1259abf90 100644
--- a/lib/mnesia/test/mnesia_examples_test.erl
+++ b/lib/mnesia/test/mnesia_examples_test.erl
@@ -21,7 +21,14 @@
 %%
 -module(mnesia_examples_test).
 -author('[email protected]').
--compile([export_all]).
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+-export([bup/1, company/1, meter/1,
+         replica_test/1, sticky_replica_test/1, dist_test/1,
+         conflict_test/1, frag_test/1, frag2_test/1, remote_test/1,
+         remote_frag2_test/1, opt_load/1]).
+
 -include("mnesia_test_lib.hrl").
 
 init_per_testcase(Func, Conf) ->
diff --git a/lib/mnesia/test/mnesia_frag_test.erl b/lib/mnesia/test/mnesia_frag_test.erl
index 9f2102beb2..7371792fda 100644
--- a/lib/mnesia/test/mnesia_frag_test.erl
+++ b/lib/mnesia/test/mnesia_frag_test.erl
@@ -23,7 +23,17 @@
 -author('[email protected]').
 -include("mnesia_test_lib.hrl").
 
--compile([export_all]).
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+
+-export([nice_single/1, nice_multi/1, nice_access/1, iter_access/1,
+         consistency/1, evil_create/1, evil_delete/1, evil_change/1, evil_combine/1,
+         evil_loop/1, evil_delete_db_node/1]).
+
+
+-export([frag_dist/1]).
 
 init_per_testcase(Func, Conf) ->
     mnesia_test_lib:init_per_testcase(Func, Conf).
@@ -845,16 +855,7 @@ frag_rec_dist(Tab) ->
     Fun = fun() -> mnesia:table_info(Tab, frag_size) end,
     [Size || {_, Size} <- mnesia:activity(sync_dirty, Fun, mnesia_frag)].
 
-table_size(Tab) ->
-    Node = mnesia:table_info(Tab, where_to_read),
-    rpc:call(Node, mnesia, table_info, [Tab, size]).
-
 sort_res(List) when is_list(List) ->
     lists:sort(List);
 sort_res(Else) ->
     Else.
-
-rev_res(List) when is_list(List) ->
-    lists:reverse(List);
-rev_res(Else) ->
-    Else.
diff --git a/lib/mnesia/test/mnesia_install_test.erl b/lib/mnesia/test/mnesia_install_test.erl
index 103f85b3d6..3f67396eb0 100644
--- a/lib/mnesia/test/mnesia_install_test.erl
+++ b/lib/mnesia/test/mnesia_install_test.erl
@@ -21,8 +21,13 @@
 %%
 -module(mnesia_install_test).
 -author('[email protected]').
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([silly_durability/1, silly_move/1, silly_upgrade/1, conflict/1, dist/1,
+         silly/0, silly2/1]).
 
--compile([export_all]).
 -include("mnesia_test_lib.hrl").
 
 init_per_testcase(Func, Conf) ->
diff --git a/lib/mnesia/test/mnesia_isolation_test.erl b/lib/mnesia/test/mnesia_isolation_test.erl
index 63940ec05c..1c3ea5ec92 100644
--- a/lib/mnesia/test/mnesia_isolation_test.erl
+++ b/lib/mnesia/test/mnesia_isolation_test.erl
@@ -22,7 +22,36 @@
 -module(mnesia_isolation_test).
 -author('[email protected]').
 
--compile([export_all]).
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([no_conflict/1, simple_queue_conflict/1,
+         advanced_queue_conflict/1, simple_deadlock_conflict/1,
+         advanced_deadlock_conflict/1, schema_deadlock/1, lock_burst/1,
+         nasty/1, basic_sticky_functionality/1,
+         unbound1/1, unbound2/1,
+         create_table/1, delete_table/1, move_table_copy/1,
+         add_table_index/1, del_table_index/1, transform_table/1,
+         snmp_open_table/1, snmp_close_table/1,
+         change_table_copy_type/1, change_table_access/1,
+         add_table_copy/1, del_table_copy/1, dump_tables/1,
+         del_table_copy_1/1, del_table_copy_2/1, del_table_copy_3/1,
+         add_table_copy_1/1, add_table_copy_2/1, add_table_copy_3/1,
+         add_table_copy_4/1, move_table_copy_1/1, move_table_copy_2/1,
+         move_table_copy_3/1, move_table_copy_4/1,
+         dirty_updates_visible_direct/1,
+         dirty_reads_regardless_of_trans/1,
+         trans_update_invisibible_outside_trans/1,
+         trans_update_visible_inside_trans/1, write_shadows/1,
+         delete_shadows/1, write_delete_shadows_bag/1,
+         write_delete_shadows_bag2/1,
+         shadow_search/1, snmp_shadows/1,
+         rr_kill_copy/1, foldl/1, first_next/1]).
+
+-export([do_fun/4, burst_counter/3, burst_incr/2, get_held/0, get_info/1,
+         get_sticky/0, op/4, update_own/3, update_shared/3]).
+
 -include("mnesia_test_lib.hrl").
 
 init_per_testcase(Func, Conf) ->
@@ -668,16 +697,6 @@ unbound2(Config) when is_list(Config) ->
 			  {B, {atomic, [{ul,{key,{17,42}},val}]}}]),
     ok.
 
-receiver() ->
-    receive 
-	{_Pid, begin_trans} ->
-	    receiver();
-	Else ->
-	    Else
-    after 
-	10000 ->
-	    timeout
-    end.   
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
diff --git a/lib/mnesia/test/mnesia_majority_test.erl b/lib/mnesia/test/mnesia_majority_test.erl
index 9811de6ae7..eb82617b60 100644
--- a/lib/mnesia/test/mnesia_majority_test.erl
+++ b/lib/mnesia/test/mnesia_majority_test.erl
@@ -21,7 +21,13 @@
 %%
 -module(mnesia_majority_test).
 -author('[email protected]').
--compile(export_all).
+-export([init_per_testcase/2, end_per_testcase/2,
+         all/0]).
+
+-export([write/1, wread/1, delete/1, clear_table/1, frag/1,
+         change_majority/1, frag_change_majority/1
+        ]).
+
 -include("mnesia_test_lib.hrl").
 
 init_per_testcase(Func, Conf) ->
diff --git a/lib/mnesia/test/mnesia_measure_test.erl b/lib/mnesia/test/mnesia_measure_test.erl
index ad71fafecb..4e63eaee22 100644
--- a/lib/mnesia/test/mnesia_measure_test.erl
+++ b/lib/mnesia/test/mnesia_measure_test.erl
@@ -21,7 +21,15 @@
 %%
 -module(mnesia_measure_test).
 -author('[email protected]').
--compile([export_all]).
+
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([cost/1, dbn_meters/1,
+         ram_tpcb/1, disc_tpcb/1, disc_only_tpcb/1,
+         ram_meter/1, disc_meter/1, disc_only_meter/1]).
+
 
 -include("mnesia_test_lib.hrl").
 
@@ -39,41 +47,12 @@ end_per_testcase(Func, Conf) ->
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 all() -> 
-    [{group, prediction}, {group, consumption},
-     {group, scalability}, {group, benchmarks}].
+    [{group, benchmarks}].
 
 groups() -> 
-    [{prediction, [],
-      [reader_disturbed_by_node_down,
-       writer_disturbed_by_node_down,
-       reader_disturbed_by_node_up,
-       writer_disturbed_by_node_up,
-       reader_disturbed_by_schema_ops,
-       writer_disturbed_by_schema_ops,
-       reader_disturbed_by_checkpoint,
-       writer_disturbed_by_checkpoint,
-       reader_disturbed_by_dump_log,
-       writer_disturbed_by_dump_log,
-       reader_disturbed_by_backup, writer_disturbed_by_backup,
-       reader_disturbed_by_restore,
-       writer_disturbed_by_restore, {group, fairness}]},
-     {fairness, [],
-      [reader_competing_with_reader,
-       reader_competing_with_writer,
-       writer_competing_with_reader,
-       writer_competing_with_writer]},
-     {consumption, [],
-      [measure_resource_consumption,
-       determine_resource_leakage]},
-     {scalability, [],
-      [determine_system_limits, performance_at_min_config,
-       performance_at_max_config, performance_at_full_load,
-       resource_consumption_at_min_config,
-       resource_consumption_at_max_config,
-       resource_consumption_at_full_load]},
-     {benchmarks, [],
+    [{benchmarks, [],
       [{group, meter}, cost, dbn_meters,
-       measure_all_api_functions, {group, tpcb}]},
+       {group, tpcb}]},
      {tpcb, [], [ram_tpcb, disc_tpcb, disc_only_tpcb]},
      {meter, [], [ram_meter, disc_meter, disc_only_meter]}].
 
diff --git a/lib/mnesia/test/mnesia_nice_coverage_test.erl b/lib/mnesia/test/mnesia_nice_coverage_test.erl
index ffbe36e48d..7c96d6e6a0 100644
--- a/lib/mnesia/test/mnesia_nice_coverage_test.erl
+++ b/lib/mnesia/test/mnesia_nice_coverage_test.erl
@@ -21,7 +21,13 @@
 %%
 -module(mnesia_nice_coverage_test).
 -author('[email protected]').
--compile([export_all]).
+
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([nice/1]).
+
 -include("mnesia_test_lib.hrl").
 
 -record(nice_tab, {key, val}).
diff --git a/lib/mnesia/test/mnesia_qlc_test.erl b/lib/mnesia/test/mnesia_qlc_test.erl
index 5067e86521..262a6b4abc 100644
--- a/lib/mnesia/test/mnesia_qlc_test.erl
+++ b/lib/mnesia/test/mnesia_qlc_test.erl
@@ -21,9 +21,18 @@
 %%
 -module(mnesia_qlc_test).
 
--compile(export_all).
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([frag/1, info/1, mnesia_down/1,
+         dirty_nice_ram_copies/1, dirty_nice_disc_copies/1,
+         dirty_nice_disc_only_copies/1,
+         trans_nice_ram_copies/1, trans_nice_disc_copies/1,
+         trans_nice_disc_only_copies/1, atomic_eval/1,
+         nested_qlc/1
+        ]).
 
--export([all/0,groups/0,init_per_group/2,end_per_group/2]).
 
 -include("mnesia_test_lib.hrl").
 -include_lib("stdlib/include/qlc.hrl"). 
diff --git a/lib/mnesia/test/mnesia_recovery_test.erl b/lib/mnesia/test/mnesia_recovery_test.erl
index 130b87346f..82d6e6ac6a 100644
--- a/lib/mnesia/test/mnesia_recovery_test.erl
+++ b/lib/mnesia/test/mnesia_recovery_test.erl
@@ -21,7 +21,80 @@
 %%
 -module(mnesia_recovery_test).
 -author('[email protected]').
--compile([export_all]).
+
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([coord_dies/1, after_full_disc_partition/1,
+         disc_less/1, garb_decision/1,
+         system_upgrade/1,
+         delete_during_start/1,
+         no_master_2/1, no_master_3/1, one_master_2/1, one_master_3/1,
+         two_master_2/1, two_master_3/1, all_master_2/1,
+         all_master_3/1,
+         dirty_read_during_down/1, trans_read_during_down/1,
+         mnesia_down_during_startup_disk_ram/1,
+         mnesia_down_during_startup_init_ram/1,
+         mnesia_down_during_startup_init_disc/1,
+         mnesia_down_during_startup_init_disc_only/1,
+         mnesia_down_during_startup_tm_ram/1,
+         mnesia_down_during_startup_tm_disc/1,
+         mnesia_down_during_startup_tm_disc_only/1,
+         with_checkpoint_same/1, with_checkpoint_other/1,
+         explicit_stop_during_snmp/1,
+         sym_trans_before_commit_kill_coord_node/1,
+         sym_trans_before_commit_kill_coord_pid/1,
+         sym_trans_before_commit_kill_part_after_ask/1,
+         sym_trans_before_commit_kill_part_before_ask/1,
+         sym_trans_after_commit_kill_coord_node/1,
+         sym_trans_after_commit_kill_coord_pid/1,
+         sym_trans_after_commit_kill_part_after_ask/1,
+         sym_trans_after_commit_kill_part_do_commit_pre/1,
+         sym_trans_after_commit_kill_part_do_commit_post/1,
+         sync_dirty_pre_kill_part/1,
+         sync_dirty_pre_kill_coord_node/1,
+         sync_dirty_pre_kill_coord_pid/1,
+         sync_dirty_post_kill_part/1,
+         sync_dirty_post_kill_coord_node/1,
+         sync_dirty_post_kill_coord_pid/1,
+         async_dirty_pre_kill_part/1,
+         async_dirty_pre_kill_coord_node/1,
+         async_dirty_pre_kill_coord_pid/1,
+         async_dirty_post_kill_part/1,
+         async_dirty_post_kill_coord_node/1,
+         async_dirty_post_kill_coord_pid/1,
+         asymtrans_part_ask/1,
+         asymtrans_part_commit_vote/1,
+         asymtrans_part_pre_commit/1,
+         asymtrans_part_log_commit/1,
+         asymtrans_part_do_commit/1,
+         asymtrans_coord_got_votes/1,
+         asymtrans_coord_pid_got_votes/1,
+         asymtrans_coord_log_commit_rec/1,
+         asymtrans_coord_pid_log_commit_rec/1,
+         asymtrans_coord_log_commit_dec/1,
+         asymtrans_coord_pid_log_commit_dec/1,
+         asymtrans_coord_rec_acc_pre_commit_log_commit/1,
+         asymtrans_coord_pid_rec_acc_pre_commit_log_commit/1,
+         asymtrans_coord_rec_acc_pre_commit_done_commit/1,
+         asymtrans_coord_pid_rec_acc_pre_commit_done_commit/1,
+         after_corrupt_files_decision_log_head/1,
+         after_corrupt_files_decision_log_tail/1,
+         after_corrupt_files_latest_log_head/1,
+         after_corrupt_files_latest_log_tail/1,
+         after_corrupt_files_table_dat_head/1,
+         after_corrupt_files_table_dat_tail/1,
+         after_corrupt_files_schema_dat_head/1,
+         after_corrupt_files_schema_dat_tail/1]).
+
+-export([reader/2, check/0, get_all_retainers/1,
+         verify_data/2, verify_where2read/1,
+         do_trans_loop/2,
+         start_stop/3, do_sym_trans/2, do_sync_dirty/2, do_async_dirty/2,
+         do_asym_trans/2, garb_handler/1, mymnesia_start/1
+        ]).
+
 
 -include("mnesia_test_lib.hrl").
 -include_lib("kernel/include/file.hrl").
diff --git a/lib/mnesia/test/mnesia_registry_test.erl b/lib/mnesia/test/mnesia_registry_test.erl
index 3df37a2c8c..08157f1be3 100644
--- a/lib/mnesia/test/mnesia_registry_test.erl
+++ b/lib/mnesia/test/mnesia_registry_test.erl
@@ -21,7 +21,12 @@
 %%
 -module(mnesia_registry_test).
 -author('[email protected]').
--compile([export_all]).
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([good_dump/1, bad_dump/1, dump_registry/2, restore_registry/2]).
+
 -include("mnesia_test_lib.hrl").
 
 init_per_testcase(Func, Conf) ->
diff --git a/lib/mnesia/test/mnesia_schema_recovery_test.erl b/lib/mnesia/test/mnesia_schema_recovery_test.erl
index ca2dd74b34..5e7627ca47 100644
--- a/lib/mnesia/test/mnesia_schema_recovery_test.erl
+++ b/lib/mnesia/test/mnesia_schema_recovery_test.erl
@@ -21,7 +21,79 @@
 %%
 -module(mnesia_schema_recovery_test).
 -author('[email protected]').
--compile([export_all]).
+
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([interrupted_before_create_ram/1,
+         interrupted_before_create_disc/1,
+         interrupted_before_create_do/1,
+         interrupted_before_create_nostore/1,
+         interrupted_before_delete_ram/1,
+         interrupted_before_delete_disc/1,
+         interrupted_before_delete_do/1,
+         interrupted_before_add_ram/1,
+         interrupted_before_add_disc/1,
+         interrupted_before_add_do/1,
+         interrupted_before_add_kill_copier/1,
+         interrupted_before_move_ram/1,
+         interrupted_before_move_disc/1,
+         interrupted_before_move_do/1,
+         interrupted_before_move_kill_copier/1,
+         interrupted_before_delcopy_ram/1,
+         interrupted_before_delcopy_disc/1,
+         interrupted_before_delcopy_do/1,
+         interrupted_before_delcopy_kill_copier/1,
+         interrupted_before_addindex_ram/1,
+         interrupted_before_addindex_disc/1,
+         interrupted_before_addindex_do/1,
+         interrupted_before_delindex_ram/1,
+         interrupted_before_delindex_disc/1,
+         interrupted_before_delindex_do/1,
+         interrupted_before_change_type_ram2disc/1,
+         interrupted_before_change_type_ram2do/1,
+         interrupted_before_change_type_disc2ram/1,
+         interrupted_before_change_type_disc2do/1,
+         interrupted_before_change_type_do2ram/1,
+         interrupted_before_change_type_do2disc/1,
+         interrupted_before_change_type_other_node/1,
+         interrupted_before_change_schema_type/1,
+         interrupted_after_create_ram/1,
+         interrupted_after_create_disc/1,
+         interrupted_after_create_do/1,
+         interrupted_after_create_nostore/1,
+         interrupted_after_delete_ram/1,
+         interrupted_after_delete_disc/1,
+         interrupted_after_delete_do/1,
+         interrupted_after_add_ram/1,
+         interrupted_after_add_disc/1,
+         interrupted_after_add_do/1,
+         interrupted_after_add_kill_copier/1,
+         interrupted_after_move_ram/1,
+         interrupted_after_move_disc/1,
+         interrupted_after_move_do/1,
+         interrupted_after_move_kill_copier/1,
+         interrupted_after_delcopy_ram/1,
+         interrupted_after_delcopy_disc/1,
+         interrupted_after_delcopy_do/1,
+         interrupted_after_delcopy_kill_copier/1,
+         interrupted_after_addindex_ram/1,
+         interrupted_after_addindex_disc/1,
+         interrupted_after_addindex_do/1,
+         interrupted_after_delindex_ram/1,
+         interrupted_after_delindex_disc/1,
+         interrupted_after_delindex_do/1,
+         interrupted_after_change_type_ram2disc/1,
+         interrupted_after_change_type_ram2do/1,
+         interrupted_after_change_type_disc2ram/1,
+         interrupted_after_change_type_disc2do/1,
+         interrupted_after_change_type_do2ram/1,
+         interrupted_after_change_type_do2disc/1,
+         interrupted_after_change_type_other_node/1,
+         interrupted_after_change_schema_type/1]).
+
+
 -include("mnesia_test_lib.hrl").
 
 init_per_testcase(Func, Conf) ->
diff --git a/lib/mnesia/test/mnesia_test_lib.erl b/lib/mnesia/test/mnesia_test_lib.erl
index 0fabdc7929..78dbe7ffde 100644
--- a/lib/mnesia/test/mnesia_test_lib.erl
+++ b/lib/mnesia/test/mnesia_test_lib.erl
@@ -774,7 +774,7 @@ init_nodes([], _File, _Line) ->
 
 %% Returns [Name, Host]
 node_to_name_and_host(Node) ->
-    string:tokens(atom_to_list(Node), [$@]).
+    string:lexemes(atom_to_list(Node), [$@]).
 
 lookup_config(Key,Config) ->
     case lists:keysearch(Key,1,Config) of
diff --git a/lib/mnesia/test/mnesia_trans_access_test.erl b/lib/mnesia/test/mnesia_trans_access_test.erl
index 4ed73ea859..c00a1ed51f 100644
--- a/lib/mnesia/test/mnesia_trans_access_test.erl
+++ b/lib/mnesia/test/mnesia_trans_access_test.erl
@@ -21,7 +21,28 @@
 %%
 -module(mnesia_trans_access_test).
 -author('[email protected]').
--compile([export_all]).
+
+-export([init_per_testcase/2, end_per_testcase/2,
+         init_per_group/2, end_per_group/2,
+         all/0, groups/0]).
+
+-export([write/1, read/1, wread/1, delete/1, delete_object/1,
+         match_object/1, select/1, select14/1, all_keys/1, transaction/1,
+         basic_nested/1, mix_of_nested_activities/1,
+         nested_trans_both_ok/1, nested_trans_child_dies/1,
+         nested_trans_parent_dies/1, nested_trans_both_dies/1,
+         index_match_object/1, index_read/1,index_write/1,
+         index_update_set/1, index_update_bag/1,
+         add_table_index_ram/1, add_table_index_disc/1,
+         add_table_index_disc_only/1, create_live_table_index_ram/1,
+         create_live_table_index_disc/1,
+         create_live_table_index_disc_only/1, del_table_index_ram/1,
+         del_table_index_disc/1, del_table_index_disc_only/1,
+         idx_schema_changes_ram/1, idx_schema_changes_disc/1,
+         idx_schema_changes_disc_only/1]).
+
+-export([do_nested/1]).
+
 -include("mnesia_test_lib.hrl").
 
 init_per_testcase(Func, Conf) ->
diff --git a/lib/mnesia/vsn.mk b/lib/mnesia/vsn.mk
index 81b15d65db..a95f468ba2 100644
--- a/lib/mnesia/vsn.mk
+++ b/lib/mnesia/vsn.mk
@@ -1 +1 @@
-MNESIA_VSN = 4.15
+MNESIA_VSN = 4.15.1
diff --git a/lib/observer/doc/src/Makefile b/lib/observer/doc/src/Makefile
index b38278a156..a3b0663041 100644
--- a/lib/observer/doc/src/Makefile
+++ b/lib/observer/doc/src/Makefile
@@ -9,11 +9,11 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # The Initial Developer of the Original Code is Ericsson Utvecklings AB.
 # Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
 # AB. All Rights Reserved.''
-# 
+#
 #     $Id$
 #
 include $(ERL_TOP)/make/target.mk
@@ -45,9 +45,7 @@ XML_REF3_FILES = \
 XML_REF6_FILES = observer_app.xml
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml \
-	part_notes_history.xml
+	part.xml
 
 XML_CHAPTER_FILES = \
 	crashdump_ug.xml \
@@ -69,9 +67,7 @@ ONLY_HTML_FILE =
 
 GIF_FILES = \
 	et_processes.gif \
-	et_modsprocs.gif \
-	note.gif
-
+	et_modsprocs.gif
 # ----------------------------------------------------
 
 HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
@@ -88,9 +84,9 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -123,12 +119,12 @@ man: $(MAN1_FILES) $(MAN3_FILES) $(MAN6_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 
@@ -148,4 +144,3 @@ release_docs_spec: docs
 
 
 release_spec:
-
diff --git a/lib/observer/doc/src/fascicules.xml b/lib/observer/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/observer/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/observer/doc/src/note.gif b/lib/observer/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/observer/doc/src/note.gif
+++ /dev/null
diff --git a/lib/observer/doc/src/notes.xml b/lib/observer/doc/src/notes.xml
index d329be5d5a..05ea550964 100644
--- a/lib/observer/doc/src/notes.xml
+++ b/lib/observer/doc/src/notes.xml
@@ -32,6 +32,57 @@
   <p>This document describes the changes made to the Observer
     application.</p>
 
+<section><title>Observer 2.5</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+	    <p>The following improvements are done to Crashdump
+	    Viewer:</p> <list> <item>Reading of crash dumps with many
+	    binaries is optimized.</item> <item>A progress bar is
+	    shown when the detail view for a process is
+	    opened.</item> <item>The <c>cdv</c> script now sets
+	    <c>ERL_CRASH_DUMP_SECONDS=0</c> to avoid generating a new
+	    crash dump from the node running the Crashdump
+	    Viewer.</item> <item>A warning dialog is shown if the
+	    node running the Crashdump Viewer could potentially
+	    overwrite the crash dump under inspection.</item>
+	    <item>Bugfix: In some situations, Crashdump Viewer could
+	    not find the end of the 'Last calls' section in a crash
+	    dump, and would erroneously mark the crash dump as
+	    truncated. This is now corrected.</item> <item>Bugfix: In
+	    some situations, process info for a specific process
+	    would be marked as truncated by Crashdump Viewer, even if
+	    the crash dump was truncated in the binary section - and
+	    not related to the process in question. This is now
+	    corrected.</item> </list>
+          <p>
+	    Own Id: OTP-14386</p>
+        </item>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+        <item>
+          <p>
+	    Tools are updated to show Unicode atoms correctly.</p>
+          <p>
+	    Own Id: OTP-14464</p>
+        </item>
+        <item>
+          <p>
+	    Add system statistics and limits to frontpage in
+	    observer.</p>
+          <p>
+	    Own Id: OTP-14536</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Observer 2.4</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/observer/doc/src/part_notes.xml b/lib/observer/doc/src/part_notes.xml
deleted file mode 100644
index ba15c39cda..0000000000
--- a/lib/observer/doc/src/part_notes.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Observer Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The <em>OBSERVER</em> application contains tools for tracing
-      and investigation of distributed systems.</p>
-    <p>For information about older versions, see
-      <url href="part_notes_history_frame.html">Release Notes History</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/observer/doc/src/part_notes_history.xml b/lib/observer/doc/src/part_notes_history.xml
deleted file mode 100644
index e60210924c..0000000000
--- a/lib/observer/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2006</year>
-      <year>2016</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
- 
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>Observer Release Notes History</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The <em>OBSERVER</em> application contains tools for tracing
-      and investigation of distributed systems.</p>
-  </description>
-  <include file="notes_history"></include>
-</part>
-
diff --git a/lib/observer/priv/bin/cdv b/lib/observer/priv/bin/cdv
index d14fd47e41..2a509c16af 100755
--- a/lib/observer/priv/bin/cdv
+++ b/lib/observer/priv/bin/cdv
@@ -1,4 +1,4 @@
 #!/bin/sh 
 
-erl -noinput -s crashdump_viewer script_start $@
+erl -env ERL_CRASH_DUMP_SECONDS 0 -noinput -s crashdump_viewer script_start $@
 
diff --git a/lib/observer/priv/bin/cdv.bat b/lib/observer/priv/bin/cdv.bat
index 18136a30d6..fa87c08adf 100644
--- a/lib/observer/priv/bin/cdv.bat
+++ b/lib/observer/priv/bin/cdv.bat
@@ -1,2 +1,2 @@
 @ECHO OFF
-CALL werl -s crashdump_viewer script_start %*
+CALL werl -env ERL_CRASH_DUMP_SECONDS 0 -s crashdump_viewer script_start %*
diff --git a/lib/observer/src/cdv_atom_cb.erl b/lib/observer/src/cdv_atom_cb.erl
index a123354c8f..86cdf2fd6d 100644
--- a/lib/observer/src/cdv_atom_cb.erl
+++ b/lib/observer/src/cdv_atom_cb.erl
@@ -42,7 +42,7 @@ get_info(_) ->
     {Info,TW}.
 
 format({Bin,q}) when is_binary(Bin) ->
-    [$'|binary_to_list(Bin)];
+    [$'|lists:flatten(io_lib:format("~ts",[Bin]))];
 format({Bin,nq}) when is_binary(Bin) ->
     lists:flatten(io_lib:format("~ts",[Bin]));
 format(D) ->
diff --git a/lib/observer/src/cdv_bin_cb.erl b/lib/observer/src/cdv_bin_cb.erl
index 5472d36a6f..5502869973 100644
--- a/lib/observer/src/cdv_bin_cb.erl
+++ b/lib/observer/src/cdv_bin_cb.erl
@@ -38,6 +38,7 @@ init_bin_page(Parent,{Type,Bin}) ->
       [{"Format \~p",cdv_html_wx,{Type,format_bin_fun("~p",Bin)}},
        {"Format \~tp",cdv_html_wx,{Type,format_bin_fun("~tp",Bin)}},
        {"Format \~w",cdv_html_wx,{Type,format_bin_fun("~w",Bin)}},
+       {"Format \~tw",cdv_html_wx,{Type,format_bin_fun("~tw",Bin)}},
        {"Format \~s",cdv_html_wx,{Type,format_bin_fun("~s",Bin)}},
        {"Format \~ts",cdv_html_wx,{Type,format_bin_fun("~ts",Bin)}},
        {"Hex",cdv_html_wx,{Type,hex_binary_fun(Bin)}},
@@ -56,7 +57,7 @@ format_bin_fun(Format,Bin) ->
 binary_to_term_fun(Bin) ->
     fun() ->
 	    try binary_to_term(Bin) of
-		Term -> plain_html(io_lib:format("~p",[Term]))
+		Term -> plain_html(io_lib:format("~tp",[Term]))
 	    catch error:badarg ->
 		    Warning = "This binary can not be converted to an Erlang term",
 		    observer_html_lib:warning(Warning)
diff --git a/lib/observer/src/cdv_detail_wx.erl b/lib/observer/src/cdv_detail_wx.erl
index 27057fd27f..f6d282638a 100644
--- a/lib/observer/src/cdv_detail_wx.erl
+++ b/lib/observer/src/cdv_detail_wx.erl
@@ -20,7 +20,7 @@
 
 -behaviour(wx_object).
 
--export([start_link/4]).
+-export([start_link/5]).
 
 -export([init/1, handle_event/2, handle_cast/2, terminate/2, code_change/3,
 	 handle_call/3, handle_info/2]).
@@ -39,27 +39,42 @@
 -define(ID_NOTEBOOK, 604).
 
 %% Detail view
-start_link(Id, Data, ParentFrame, Callback) ->
-    wx_object:start_link(?MODULE, [Id, Data, ParentFrame, Callback, self()], []).
+start_link(Id, Data, ParentFrame, Callback, App) ->
+    wx_object:start_link(?MODULE,[Id,Data,ParentFrame,Callback,App,self()],[]).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-init([Id, Data, ParentFrame, Callback, Parent]) ->
+init([Id, Data, ParentFrame, Callback, App, Parent]) ->
+    display_progress(ParentFrame,App),
     case Callback:get_details(Id, Data) of
 	{ok,Details} ->
-	    init(Id,ParentFrame,Callback,Parent,Details);
+	    init(Id,ParentFrame,Callback,App,Parent,Details);
 	{yes_no, Info, Fun} ->
+            destroy_progress(App),
 	    case observer_lib:display_yes_no_dialog(Info) of
 		?wxID_YES -> Fun();
 		?wxID_NO -> ok
 	    end,
 	    {stop,normal};
 	{info,Info} ->
+            destroy_progress(App),
 	    observer_lib:display_info_dialog(ParentFrame,Info),
 	    {stop,normal}
     end.
 
-init(Id,ParentFrame,Callback,Parent,{Title,Info,TW}) ->
+%% Display progress bar only if the calling app is crashdump_viewer
+display_progress(ParentFrame,cdv) ->
+    observer_lib:display_progress_dialog(ParentFrame,
+                                         "Crashdump Viewer",
+                                         "Reading data");
+display_progress(_,_) ->
+    ok.
+destroy_progress(cdv) ->
+    observer_lib:destroy_progress_dialog();
+destroy_progress(_) ->
+    ok.
+
+init(Id,ParentFrame,Callback,App,Parent,{Title,Info,TW}) ->
     Frame=wxFrame:new(ParentFrame, ?wxID_ANY, [Title],
 		      [{style, ?wxDEFAULT_FRAME_STYLE}, {size, {850,600}}]),
     MenuBar = wxMenuBar:new(),
@@ -88,6 +103,7 @@ init(Id,ParentFrame,Callback,Parent,{Title,Info,TW}) ->
     wxFrame:connect(Frame, close_window),
     wxMenu:connect(Frame, command_menu_selected),
     wxFrame:show(Frame),
+    destroy_progress(App),
     {Frame, #state{parent=Parent,
 		   id=Id,
 		   frame=Frame,
@@ -133,7 +149,7 @@ handle_event(Event, _State) ->
     error({unhandled_event, Event}).
 
 handle_info(_Info, State) ->
-    %% io:format("~p: ~p, Handle info: ~p~n", [?MODULE, ?LINE, _Info]),
+    %% io:format("~p: ~p, Handle info: ~tp~n", [?MODULE, ?LINE, _Info]),
     {noreply, State}.
 
 handle_call(Call, From, _State) ->
diff --git a/lib/observer/src/cdv_dist_cb.erl b/lib/observer/src/cdv_dist_cb.erl
index 2b4c9f56d1..aeb34e5baf 100644
--- a/lib/observer/src/cdv_dist_cb.erl
+++ b/lib/observer/src/cdv_dist_cb.erl
@@ -78,7 +78,7 @@ init_gen_page(Parent, Info) ->
     cdv_info_wx:start_link(Parent,{Fields,Info,[]}).
 
 format({creations,Creations}) ->
-    string:join([integer_to_list(C) || C <- Creations],",");
+    lists:flatten(lists:join(",",[integer_to_list(C) || C <- Creations]));
 format(D) ->
     D.
 
diff --git a/lib/observer/src/cdv_html_wx.erl b/lib/observer/src/cdv_html_wx.erl
index 0ab0ba4315..4b43b6a840 100644
--- a/lib/observer/src/cdv_html_wx.erl
+++ b/lib/observer/src/cdv_html_wx.erl
@@ -52,8 +52,12 @@ init([ParentWin, HtmlText]) ->
     init(ParentWin, HtmlText, undefined, cdv).
 
 init(ParentWin, HtmlText, Tab, App) ->
+    %% If progress dialog is shown, remove it now - and sett cursor busy instead
+    observer_lib:destroy_progress_dialog(),
+    wx_misc:beginBusyCursor(),
     HtmlWin = observer_lib:html_window(ParentWin),
     wxHtmlWindow:setPage(HtmlWin,HtmlText),
+    wx_misc:endBusyCursor(),
     {HtmlWin, #state{panel=HtmlWin,expand_table=Tab,app=App}}.
 
 %%%%%%%%%%%%%%%%%%%%%%% Callbacks %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -62,7 +66,7 @@ handle_info(active, State) ->
     {noreply, State};
 
 handle_info(Info, State) ->
-    io:format("~p:~p: Unhandled info: ~p~n", [?MODULE, ?LINE, Info]),
+    io:format("~p:~p: Unhandled info: ~tp~n", [?MODULE, ?LINE, Info]),
     {noreply, State}.
 
 terminate(_Reason, _State) ->
@@ -72,7 +76,7 @@ code_change(_, _, State) ->
     {ok, State}.
 
 handle_call(Msg, _From, State) ->
-    io:format("~p~p: Unhandled Call ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p~p: Unhandled Call ~tp~n",[?MODULE, ?LINE, Msg]),
     {reply, ok, State}.
 
 handle_cast({detail_win_closed, Id},#state{expand_wins=Opened0}=State) ->
@@ -80,7 +84,7 @@ handle_cast({detail_win_closed, Id},#state{expand_wins=Opened0}=State) ->
     {noreply, State#state{expand_wins=Opened}};
 
 handle_cast(Msg, State) ->
-    io:format("~p~p: Unhandled cast ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p~p: Unhandled cast ~tp~n",[?MODULE, ?LINE, Msg]),
     {noreply, State}.
 
 handle_event(#wx{event=#wxHtmlLink{type=command_html_link_clicked,
@@ -118,16 +122,17 @@ handle_event(#wx{event=#wxHtmlLink{type=command_html_link_clicked,
     {noreply, NewState};
 
 handle_event(Event, State) ->
-    io:format("~p:~p: Unhandled event ~p\n", [?MODULE,?LINE,Event]),
+    io:format("~p:~p: Unhandled event ~tp\n", [?MODULE,?LINE,Event]),
     {noreply, State}.
 
 %%%-----------------------------------------------------------------
 %%% Internal
-expand(Id,Callback,#state{expand_wins=Opened0}=State) ->
+expand(Id,Callback,#state{expand_wins=Opened0, app=App}=State) ->
     Opened =
 	case lists:keyfind(Id,1,Opened0) of
 	    false ->
-		EW = cdv_detail_wx:start_link(Id,[],State#state.panel,Callback),
+		EW = cdv_detail_wx:start_link(Id,[],State#state.panel,
+                                              Callback,App),
 		wx_object:get_pid(EW) ! active,
 		[{Id,EW}|Opened0];
 	    {_,EW} ->
diff --git a/lib/observer/src/cdv_info_wx.erl b/lib/observer/src/cdv_info_wx.erl
index 01fe6b15f2..7e416dd11a 100644
--- a/lib/observer/src/cdv_info_wx.erl
+++ b/lib/observer/src/cdv_info_wx.erl
@@ -65,7 +65,7 @@ handle_info(active, State) ->
     {noreply, State};
 
 handle_info(Info, State) ->
-    io:format("~p:~p: Unhandled info: ~p~n", [?MODULE, ?LINE, Info]),
+    io:format("~p:~p: Unhandled info: ~tp~n", [?MODULE, ?LINE, Info]),
     {noreply, State}.
 
 terminate(_Reason, _State) ->
@@ -88,11 +88,11 @@ handle_call(new_dump, _From, #state{callback=Callback,panel=Panel,
     {reply, ok, State#state{fpanel=NewFPanel,trunc_warn=TW}};
 
 handle_call(Msg, _From, State) ->
-    io:format("~p~p: Unhandled Call ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p~p: Unhandled Call ~tp~n",[?MODULE, ?LINE, Msg]),
     {reply, ok, State}.
 
 handle_cast(Msg, State) ->
-    io:format("~p~p: Unhandled cast ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p~p: Unhandled cast ~tp~n",[?MODULE, ?LINE, Msg]),
     {noreply, State}.
 
 handle_event(#wx{event=#wxMouse{type=left_down},userData=Target}, State) ->
@@ -108,7 +108,7 @@ handle_event(#wx{obj=Obj,event=#wxMouse{type=leave_window}},State) ->
     {noreply, State};
 
 handle_event(Event, State) ->
-    io:format("~p:~p: Unhandled event ~p\n", [?MODULE,?LINE,Event]),
+    io:format("~p:~p: Unhandled event ~tp\n", [?MODULE,?LINE,Event]),
     {noreply, State}.
 
 %%%-----------------------------------------------------------------
diff --git a/lib/observer/src/cdv_mem_cb.erl b/lib/observer/src/cdv_mem_cb.erl
index abeddc7335..925487786c 100644
--- a/lib/observer/src/cdv_mem_cb.erl
+++ b/lib/observer/src/cdv_mem_cb.erl
@@ -49,9 +49,7 @@ gen_mem_info_fields([]) ->
     [].
 
 upper(Key) ->
-    string:join([string:to_upper([H]) ++ T || 
-		    [H|T] <- string:tokens(Key,"_")]," ").
-
+    lists:join(" ", [string:titlecase(Word) || Word <- string:split(Key, "_", all)]).
 
 %%%-----------------------------------------------------------------
 %%% Allocated areas page
diff --git a/lib/observer/src/cdv_multi_wx.erl b/lib/observer/src/cdv_multi_wx.erl
index b511503752..93f045b1da 100644
--- a/lib/observer/src/cdv_multi_wx.erl
+++ b/lib/observer/src/cdv_multi_wx.erl
@@ -94,7 +94,7 @@ handle_info(active, State) ->
     {noreply, NewState};
 
 handle_info(Info, State) ->
-    io:format("~p:~p: Unhandled info: ~p~n", [?MODULE, ?LINE, Info]),
+    io:format("~p:~p: Unhandled info: ~tp~n", [?MODULE, ?LINE, Info]),
     {noreply, State}.
 
 terminate(_Reason, _State) ->
@@ -112,11 +112,11 @@ handle_call(new_dump, _From, State) ->
     {reply, ok, NewState};
 
 handle_call(Msg, _From, State) ->
-    io:format("~p:~p: Unhandled Call ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p:~p: Unhandled Call ~tp~n",[?MODULE, ?LINE, Msg]),
     {reply, ok, State}.
 
 handle_cast(Msg, State) ->
-    io:format("~p:~p: Unhandled cast ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p:~p: Unhandled cast ~tp~n",[?MODULE, ?LINE, Msg]),
     {noreply, State}.
 
 handle_event(#wx{event=#wxCommand{type=command_listbox_selected,
@@ -136,7 +136,7 @@ handle_event(#wx{event=#wxCommand{type=command_listbox_selected,
     {noreply,NewState};
 
 handle_event(Event, State) ->
-    io:format("~p:~p: Unhandled event ~p\n", [?MODULE,?LINE,Event]),
+    io:format("~p:~p: Unhandled event ~tp\n", [?MODULE,?LINE,Event]),
     {noreply, State}.
 
 %%%%%%%%%%%%%%%%%%%%%%% Internal %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/lib/observer/src/cdv_proc_cb.erl b/lib/observer/src/cdv_proc_cb.erl
index 592150146b..f10650bbb7 100644
--- a/lib/observer/src/cdv_proc_cb.erl
+++ b/lib/observer/src/cdv_proc_cb.erl
@@ -71,7 +71,7 @@ get_details(Id, _) ->
 	    Proplist0 =
 		crashdump_viewer:to_proplist(record_info(fields,proc),Info),
 	    Proplist = [{expand_table,Tab}|Proplist0],
-	    Title = io_lib:format("~s (~s)",[Info#proc.name, Id]),
+	    Title = io_lib:format("~ts (~s)",[Info#proc.name, Id]),
 	    {ok,{Title,Proplist,TW}};
 	{error,{other_node,NodeId}} ->
 	    Info = "The process you are searching for was residing on "
diff --git a/lib/observer/src/cdv_table_wx.erl b/lib/observer/src/cdv_table_wx.erl
index df16230b70..ba23758ea6 100644
--- a/lib/observer/src/cdv_table_wx.erl
+++ b/lib/observer/src/cdv_table_wx.erl
@@ -74,7 +74,7 @@ handle_info(active, State) ->
     {noreply, State};
 
 handle_info(Info, State) ->
-    io:format("~p:~p: Unhandled info: ~p~n", [?MODULE, ?LINE, Info]),
+    io:format("~p:~p: Unhandled info: ~tp~n", [?MODULE, ?LINE, Info]),
     {noreply, State}.
 
 terminate(_Reason, _State) ->
@@ -84,15 +84,15 @@ code_change(_, _, State) ->
     {ok, State}.
 
 handle_call(Msg, _From, State) ->
-    io:format("~p~p: Unhandled Call ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p~p: Unhandled Call ~tp~n",[?MODULE, ?LINE, Msg]),
     {reply, ok, State}.
 
 handle_cast(Msg, State) ->
-    io:format("~p~p: Unhandled cast ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p~p: Unhandled cast ~tp~n",[?MODULE, ?LINE, Msg]),
     {noreply, State}.
 
 handle_event(Event, State) ->
-    io:format("~p:~p: Unhandled event ~p\n", [?MODULE,?LINE,Event]),
+    io:format("~p:~p: Unhandled event ~tp\n", [?MODULE,?LINE,Event]),
     {noreply, State}.
 
 %%%%%%%%%%%%%%%%%%%%%%% Internal %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/lib/observer/src/cdv_term_cb.erl b/lib/observer/src/cdv_term_cb.erl
index f0d90dde7c..bdcb13f22d 100644
--- a/lib/observer/src/cdv_term_cb.erl
+++ b/lib/observer/src/cdv_term_cb.erl
@@ -30,23 +30,31 @@ detail_pages() ->
     [{"Term", fun init_term_page/2}].
 
 init_term_page(ParentWin, {Type, [Term, Tab]}) ->
+    observer_lib:report_progress({ok,"Expanding term"}),
+    observer_lib:report_progress({ok,start_pulse}),
     Expanded = expand(Term, true),
     BinSaved = expand(Term, Tab),
+    observer_lib:report_progress({ok,stop_pulse}),
     cdv_multi_wx:start_link(
       ParentWin,
       [{"Format \~p",cdv_html_wx,{Type, format_term_fun("~p",BinSaved,Tab)}},
        {"Format \~tp",cdv_html_wx,{Type,format_term_fun("~tp",BinSaved,Tab)}},
        {"Format \~w",cdv_html_wx,{Type,format_term_fun("~w",BinSaved,Tab)}},
+       {"Format \~tw",cdv_html_wx,{Type,format_term_fun("~tw",BinSaved,Tab)}},
        {"Format \~s",cdv_html_wx,{Type,format_term_fun("~s",Expanded,Tab)}},
        {"Format \~ts",cdv_html_wx,{Type,format_term_fun("~ts",Expanded,Tab)}}]).
 
 format_term_fun(Format,Term,Tab) ->
     fun() ->
+            observer_lib:report_progress({ok,"Formatting term"}),
+            observer_lib:report_progress({ok,start_pulse}),
 	    try io_lib:format(Format,[Term]) of
 		Str -> {expand, plain_html(Str), Tab}
 	    catch error:badarg ->
 		    Warning = "This term can not be formatted with " ++ Format,
 		    observer_html_lib:warning(Warning)
+            after
+                    observer_lib:report_progress({ok,stop_pulse})
 	    end
     end.
 
@@ -57,13 +65,7 @@ expand(['#CDVBin',Offset,Size,Pos], true) ->
     {ok,Bin} = crashdump_viewer:expand_binary({Offset,Size,Pos}),
     Bin;
 expand(Bin, Tab) when is_binary(Bin), not is_boolean(Tab) ->
-    Size = byte_size(Bin),
-    PrevSize = min(Size, 10) * 8,
-    <<Preview:PrevSize, _/binary>> = Bin,
-    Hash = erlang:phash2(Bin),
-    Key = {Preview, Size, Hash},
-    ets:insert(Tab, {Key,Bin}),
-    ['#OBSBin',Preview,Size,Hash];
+    observer_lib:make_obsbin(Bin, Tab);
 expand([H|T], Expand) ->
     case expand(T, Expand) of
 	ET when is_list(ET) ->
diff --git a/lib/observer/src/cdv_virtual_list_wx.erl b/lib/observer/src/cdv_virtual_list_wx.erl
index ebf58865e9..33c0c880b1 100644
--- a/lib/observer/src/cdv_virtual_list_wx.erl
+++ b/lib/observer/src/cdv_virtual_list_wx.erl
@@ -73,7 +73,7 @@ start_detail_win(Id) ->
 	"#Port"++_ ->
 	    start_detail_win(Id, port);
 	_ ->
-	    io:format("cdv: unknown identifier: ~p~n",[Id]),
+	    io:format("cdv: unknown identifier: ~tp~n",[Id]),
 	    ignore
     end.
 
@@ -174,7 +174,7 @@ do_start_detail_win(Id, #state{panel=Panel,detail_wins=Opened,
 	case lists:keyfind(Id, 1, Opened) of
 	    false ->
 		Data = call(Holder, {get_data, self(), Id}),
-		case cdv_detail_wx:start_link(Id, Data, Panel, Callback) of
+		case cdv_detail_wx:start_link(Id, Data, Panel, Callback, cdv) of
 		    {error, _} -> Opened;
 		    IW -> [{Id, IW} | Opened]
 		end;
@@ -195,7 +195,7 @@ call(Holder, What) when is_pid(Holder) ->
 	    erlang:demonitor(Ref),
 	    Res
     after 5000 ->
-	    io:format("Hanging call ~p~n",[What]),
+	    io:format("Hanging call ~tp~n",[What]),
 	    ""
     end;
 call(_,_) ->
@@ -214,7 +214,7 @@ handle_info(active, State) ->
     {noreply, State};
 
 handle_info(Info, State) ->
-    io:format("~p:~p, Unexpected info: ~p~n", [?MODULE, ?LINE, Info]),
+    io:format("~p:~p, Unexpected info: ~tp~n", [?MODULE, ?LINE, Info]),
     {noreply, State}.
 
 terminate(_Reason, #state{holder=Holder}) ->
@@ -236,7 +236,7 @@ handle_call(new_dump, _From,
     {reply, ok, State#state{detail_wins=[],holder=NewHolder,trunc_warn=TW}};
 
 handle_call(Msg, _From, State) ->
-    io:format("~p:~p: Unhandled call ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p:~p: Unhandled call ~tp~n",[?MODULE, ?LINE, Msg]),
     {reply, ok, State}.
 
 handle_cast({start_detail_win,Id}, State) ->
@@ -248,7 +248,7 @@ handle_cast({detail_win_closed, Id},#state{detail_wins=Opened}=State) ->
     {noreply, State#state{detail_wins=Opened2}};
 
 handle_cast(Msg, State) ->
-    io:format("~p:~p: Unhandled cast ~p~n", [?MODULE, ?LINE, Msg]),
+    io:format("~p:~p: Unhandled cast ~tp~n", [?MODULE, ?LINE, Msg]),
     {noreply, State}.
 
 %%%%%%%%%%%%%%%%%%%%LOOP%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -322,7 +322,7 @@ handle_event(#wx{event=#wxList{type=command_list_item_activated,
     {noreply, State};
 
 handle_event(Event, State) ->
-    io:format("~p:~p: handle event ~p\n", [?MODULE, ?LINE, Event]),
+    io:format("~p:~p: handle event ~tp\n", [?MODULE, ?LINE, Event]),
     {noreply, State}.
 
 
@@ -382,7 +382,7 @@ table_holder(#holder{callback=Callback, attrs=Attrs, info=Info}=S0) ->
 	stop ->
 	    ok;
 	What ->
-	    io:format("Table holder got ~p~n",[What]),
+	    io:format("Table holder got ~tp~n",[What]),
 	    table_holder(S0)
     end.
 
diff --git a/lib/observer/src/cdv_wx.erl b/lib/observer/src/cdv_wx.erl
index 1e3fb6289e..0e33c9e618 100644
--- a/lib/observer/src/cdv_wx.erl
+++ b/lib/observer/src/cdv_wx.erl
@@ -130,8 +130,9 @@ init(File0) ->
 	{ok,File} ->
 	    %% Set window title
 	    T1 = "Crashdump Viewer: ",
+            FileLength = string:length(File),
 	    Title =
-		if length(File) > 70 ->
+		if FileLength > 70 ->
 			T1 ++ filename:basename(File);
 		   true ->
 			T1 ++ File
@@ -306,7 +307,7 @@ handle_info({'EXIT', Pid, normal}, #state{server=Pid}=State) ->
     {stop, normal, State};
 
 handle_info({'EXIT', Pid, _Reason}, State) ->
-    io:format("Child (~s) crashed exiting:  ~p ~p~n",
+    io:format("Child (~s) crashed exiting:  ~p ~tp~n",
 	      [pid2panel(Pid, State), Pid,_Reason]),
     {stop, normal, State};
 
@@ -412,15 +413,25 @@ load_dump(Frame,undefined) ->
 	    error
     end;
 load_dump(Frame,FileName) ->
-    ok = observer_lib:display_progress_dialog("Crashdump Viewer",
+    case maybe_warn_filename(FileName) of
+        continue ->
+            do_load_dump(Frame,FileName);
+        stop ->
+            error
+    end.
+
+do_load_dump(Frame,FileName) ->
+    ok = observer_lib:display_progress_dialog(wx:null(),
+                                              "Crashdump Viewer",
 					      "Loading crashdump"),
     crashdump_viewer:read_file(FileName),
     case observer_lib:wait_for_progress() of
 	ok    ->
 	    %% Set window title
 	    T1 = "Crashdump Viewer: ",
+            FileLength = string:length(FileName),
 	    Title =
-		if length(FileName) > 70 ->
+		if FileLength > 70 ->
 			T1 ++ filename:basename(FileName);
 		   true ->
 			T1 ++ FileName
@@ -431,6 +442,33 @@ load_dump(Frame,FileName) ->
 	    error
     end.
 
+maybe_warn_filename(FileName) ->
+    case os:getenv("ERL_CRASH_DUMP_SECONDS")=="0" orelse
+        os:getenv("ERL_CRASH_DUMP_BYTES")=="0" of
+        true ->
+            continue;
+        false ->
+            DumpName = case os:getenv("ERL_CRASH_DUMP") of
+                           false -> filename:absname("erl_crash.dump");
+                           Name -> filename:absname(Name)
+                       end,
+            case filename:absname(FileName) of
+                DumpName ->
+                    Warning =
+                        "WARNING: the current crashdump might be overwritten "
+                        "if the crashdump_viewer node crashes.\n\n"
+                        "Renaming the file before inspecting it will "
+                        "remove the problem.\n\n"
+                        "Do you want to continue?",
+                    case observer_lib:display_yes_no_dialog(Warning) of
+                        ?wxID_YES -> continue;
+                        ?wxID_NO -> stop
+                    end;
+                _ ->
+                    continue
+            end
+    end.
+
 %%%-----------------------------------------------------------------
 %%% Find help document (HTML files)
 get_help_doc(HelpId) ->
diff --git a/lib/observer/src/crashdump_viewer.erl b/lib/observer/src/crashdump_viewer.erl
index 8d70f5e2c8..7f6bb9bdcd 100644
--- a/lib/observer/src/crashdump_viewer.erl
+++ b/lib/observer/src/crashdump_viewer.erl
@@ -36,7 +36,6 @@
 %% file: The name of the crashdump currently viewed.
 %% dump_vsn: The version number of the crashdump
 %% wordsize: 4 | 8, the number of bytes in a word.
-%% binaries: a gb_tree containing binaries or links to binaries in the dump
 %%
 
 %% User API
@@ -87,6 +86,7 @@
 -define(max_line_size,100). % max number of bytes (i.e. characters) the
 			    % line_head/1 function can return
 -define(not_available,"N/A").
+-define(binary_size_progress_limit,10000).
 
 
 %% All possible tags - use macros in order to avoid misspelling in the code
@@ -104,8 +104,11 @@
 -define(index_table,index_table).
 -define(instr_data,instr_data).
 -define(internal_ets,internal_ets).
+-define(literals,literals).
 -define(loaded_modules,loaded_modules).
 -define(memory,memory).
+-define(memory_map,memory_map).
+-define(memory_status,memory_status).
 -define(mod,mod).
 -define(no_distribution,no_distribution).
 -define(node,node).
@@ -122,7 +125,7 @@
 -define(visible_node,visible_node).
 
 
--record(state,{file,dump_vsn,wordsize=4,num_atoms="unknown",binaries}).
+-record(state,{file,dump_vsn,wordsize=4,num_atoms="unknown"}).
 
 %%%-----------------------------------------------------------------
 %%% Debugging
@@ -200,13 +203,14 @@ do_script_start(StartFun) ->
 			{'EXIT', Pid, normal} ->
 			    ok;
 			{'EXIT', Pid, Reason} ->
-			    io:format("\ncdv crash: ~p\n",[Reason])
+			    io:format("\ncdv crash: ~tp\n",[Reason])
 		    end;
 		_ ->
-		    io:format("\ncdv crash: ~p\n",[unknown_reason])
+		    %io:format("\ncdv crash: ~p\n",[unknown_reason])
+                    ok
 	    end;
 	Error ->
-	    io:format("\ncdv start failed: ~p\n",[Error])
+	    io:format("\ncdv start failed: ~tp\n",[Error])
     end.
 
 usage() ->
@@ -305,6 +309,8 @@ expand_binary(Pos) ->
 init([]) ->
     ets:new(cdv_dump_index_table,[ordered_set,named_table,public]),
     ets:new(cdv_reg_proc_table,[ordered_set,named_table,public]),
+    ets:new(cdv_binary_index_table,[ordered_set,named_table,public]),
+    ets:new(cdv_heap_file_chars,[ordered_set,named_table,public]),
     {ok, #state{}}.
 
 %%--------------------------------------------------------------------
@@ -340,7 +346,7 @@ handle_call(general_info,_From,State=#state{file=File}) ->
 handle_call({expand_binary,{Offset,Size,Pos}},_From,State=#state{file=File}) ->
     Fd = open(File),
     pos_bof(Fd,Pos),
-    {Bin,_Line} = get_binary(Offset,Size,val(Fd)),
+    {Bin,_Line} = get_binary(Offset,Size,bytes(Fd)),
     close(Fd),
     {reply,{ok,Bin},State};
 handle_call(procs_summary,_From,State=#state{file=File,wordsize=WS}) ->
@@ -348,9 +354,9 @@ handle_call(procs_summary,_From,State=#state{file=File,wordsize=WS}) ->
     Procs = procs_summary(File,WS),
     {reply,{ok,Procs,TW},State};
 handle_call({proc_details,Pid},_From,
-	    State=#state{file=File,wordsize=WS,dump_vsn=DumpVsn,binaries=B})->
+	    State=#state{file=File,wordsize=WS,dump_vsn=DumpVsn})->
     Reply = 
-	case get_proc_details(File,Pid,WS,DumpVsn,B) of
+	case get_proc_details(File,Pid,WS,DumpVsn) of
 	    {ok,Proc,TW} ->
 		{ok,Proc,TW};
 	    Other ->
@@ -462,9 +468,9 @@ handle_call(schedulers,_From,State=#state{file=File}) ->
 %%--------------------------------------------------------------------
 handle_cast({read_file,File}, _State) ->
     case do_read_file(File) of
-	{ok,Binaries,DumpVsn} ->
+	{ok,DumpVsn} ->
 	    observer_lib:report_progress({ok,done}),
-	    {noreply, #state{file=File,binaries=Binaries,dump_vsn=DumpVsn}};
+	    {noreply, #state{file=File,dump_vsn=DumpVsn}};
 	Error ->
 	    end_progress(Error),
 	    {noreply, #state{}}
@@ -512,9 +518,9 @@ unexpected(_Fd,{eof,_LastLine},_Where) ->
     ok; % truncated file
 unexpected(Fd,{part,What},Where) ->
     skip_rest_of_line(Fd),
-    io:format("WARNING: Found unexpected line in ~s:~n~s ...~n",[Where,What]);
+    io:format("WARNING: Found unexpected line in ~ts:~n~ts ...~n",[Where,What]);
 unexpected(_Fd,What,Where) ->
-    io:format("WARNING: Found unexpected line in ~s:~n~s~n",[Where,What]).
+    io:format("WARNING: Found unexpected line in ~ts:~n~ts~n",[Where,What]).
 
 truncated_warning([]) ->
     [];
@@ -701,9 +707,24 @@ skip(Fd,<<>>) ->
     end.
 
 
-val(Fd) ->
-    val(Fd, "-1").
-val(Fd, NoExist) ->
+string(Fd) ->
+    string(Fd, "-1").
+string(Fd,NoExist) ->
+    case bytes(Fd,noexist) of
+        noexist -> NoExist;
+        Val -> byte_list_to_string(Val)
+    end.
+
+byte_list_to_string(ByteList) ->
+    Bin = list_to_binary(ByteList),
+    case unicode:characters_to_list(Bin) of
+        Str when is_list(Str) -> Str;
+        _ -> ByteList
+    end.
+
+bytes(Fd) ->
+    bytes(Fd, "-1").
+bytes(Fd, NoExist) ->
     case get_rest_of_line(Fd) of
 	{eof,[]} -> NoExist;
 	[] -> NoExist;
@@ -731,32 +752,6 @@ get_rest_of_line_1(Fd, <<>>, Acc) ->
 	eof -> {eof,lists:reverse(Acc)}
     end.
 
-get_lines_to_empty(Fd) ->
-    case get_chunk(Fd) of
-	{ok,Bin} ->
-	    get_lines_to_empty(Fd,Bin,[],[]);
-	eof ->
-	    []
-    end.
-get_lines_to_empty(Fd,<<$\n:8,Bin/binary>>,[],Lines) ->
-    put_chunk(Fd,Bin),
-    lists:reverse(Lines);
-get_lines_to_empty(Fd,<<$\n:8,Bin/binary>>,Acc,Lines) ->
-    get_lines_to_empty(Fd,Bin,[],[lists:reverse(Acc)|Lines]);
-get_lines_to_empty(Fd,<<$\r:8,Bin/binary>>,Acc,Lines) ->
-    get_lines_to_empty(Fd,Bin,Acc,Lines);
-get_lines_to_empty(Fd,<<$\s:8,Bin/binary>>,[],Lines) ->
-    get_lines_to_empty(Fd,Bin,[],Lines);
-get_lines_to_empty(Fd,<<Char:8,Bin/binary>>,Acc,Lines) ->
-    get_lines_to_empty(Fd,Bin,[Char|Acc],Lines);
-get_lines_to_empty(Fd,<<>>,Acc,Lines) ->
-    case get_chunk(Fd) of
-	{ok,Bin} ->
-	    get_lines_to_empty(Fd,Bin,Acc,Lines);
-	eof ->
-	    lists:reverse(Lines,[lists:reverse(Acc)])
-    end.
-
 split(Str) ->
     split($ ,Str,[]).    
 split(Char,Str) ->
@@ -791,6 +786,9 @@ parse_vsn_str(Str,WS) ->
 %%% Progress is reported during the time and MUST be checked with
 %%% crashdump_viewer:get_progress/0 until it returns {ok,done}.
 do_read_file(File) ->
+    erase(?literals),                           %Clear literal cache.
+    put(truncated,false),                       %Not truncated (yet).
+    erase(truncated_reason),                    %Not truncated (yet).
     case file:read_file_info(File) of
 	{ok,#file_info{type=regular,
 		       access=FileA,
@@ -802,21 +800,20 @@ do_read_file(File) ->
 		    {Tag,Id,Rest,N1} = tag(Fd,TagAndRest,1),
 		    case Tag of
 			?erl_crash_dump ->
-			    reset_index_table(),
+			    reset_tables(),
 			    insert_index(Tag,Id,N1+1),
 			    put_last_tag(Tag,""),
-			    indexify(Fd,Rest,N1),
+                            DumpVsn = [list_to_integer(L) ||
+                                          L<-string:lexemes(Id,".")],
+                            AddrAdj = get_bin_addr_adj(DumpVsn),
+                            indexify(Fd,AddrAdj,Rest,N1),
 			    end_progress(),
 			    check_if_truncated(),
-			    [{DumpVsn0,_}] = lookup_index(?erl_crash_dump),
-			    DumpVsn = [list_to_integer(L) ||
-					L<-string:tokens(DumpVsn0,".")],
-			    Binaries = read_binaries(Fd,DumpVsn),
 			    close(Fd),
-			    {ok,Binaries,DumpVsn};
+                            {ok,DumpVsn};
 			_Other ->
 			    R = io_lib:format(
-				  "~s is not an Erlang crash dump~n",
+				  "~ts is not an Erlang crash dump~n",
 				  [File]),
 			    close(Fd),
 			    {error,R}
@@ -824,32 +821,61 @@ do_read_file(File) ->
 		{ok,<<"<Erlang crash dump>",_Rest/binary>>} -> 
 		    %% old version - no longer supported
 		    R = io_lib:format(
-			  "The crashdump ~s is in the pre-R10B format, "
+			  "The crashdump ~ts is in the pre-R10B format, "
 			  "which is no longer supported.~n",
 			     [File]),
 		    close(Fd),
 		    {error,R};
 		_Other ->
 		    R = io_lib:format(
-			  "~s is not an Erlang crash dump~n",
+			  "~ts is not an Erlang crash dump~n",
 			  [File]),
 		    close(Fd),
 		    {error,R}
 	    end;
 	_other ->
-	    R = io_lib:format("~s is not an Erlang crash dump~n",[File]),
+	    R = io_lib:format("~ts is not an Erlang crash dump~n",[File]),
 	    {error,R}
     end.
 
-indexify(Fd,Bin,N) ->
+indexify(Fd,AddrAdj,Bin,N) ->
     case binary:match(Bin,<<"\n=">>) of
 	{Start,Len} ->
 	    Pos = Start+Len,
 	    <<_:Pos/binary,TagAndRest/binary>> = Bin,
 	    {Tag,Id,Rest,N1} = tag(Fd,TagAndRest,N+Pos),
-	    insert_index(Tag,Id,N1+1), % +1 to get past newline
-	    put_last_tag(Tag,Id),
-	    indexify(Fd,Rest,N1);
+            NewPos = N1+1, % +1 to get past newline
+            case Tag of
+                ?binary ->
+                    %% Binaries are stored in a separate table in
+                    %% order to minimize lookup time. Key is the
+                    %% translated address.
+                    {HexAddr,_} = get_hex(Id),
+                    Addr = HexAddr bor AddrAdj,
+                    insert_binary_index(Addr,NewPos);
+                _ ->
+                    insert_index(Tag,Id,NewPos)
+            end,
+	    case put_last_tag(Tag,Id) of
+                {?proc_heap,LastId} ->
+                    [{_,LastPos}] = lookup_index(?proc_heap,LastId),
+                    ets:insert(cdv_heap_file_chars,{LastId,N+Start+1-LastPos});
+                {?literals,[]} ->
+                    case get(truncated_reason) of
+                        undefined ->
+                            [{_,LastPos}] = lookup_index(?literals,[]),
+                            ets:insert(cdv_heap_file_chars,
+                                       {literals,N+Start+1-LastPos});
+                        _ ->
+                            %% Literals are truncated. Make sure we never
+                            %% attempt to read in the literals. (Heaps that
+                            %% references literals will show markers for
+                            %% incomplete heaps, but will otherwise work.)
+                            delete_index(?literals, [])
+                    end;
+                _ -> ok
+            end,
+	    indexify(Fd,AddrAdj,Rest,N1);
 	nomatch ->
 	    case progress_read(Fd) of
 		{ok,Chunk0} when is_binary(Chunk0) ->
@@ -860,7 +886,7 @@ indexify(Fd,Bin,N) ->
 			    _ ->
 				{Chunk0,N+byte_size(Bin)}
 			end,
-		    indexify(Fd,Chunk,N1);
+		    indexify(Fd,AddrAdj,Chunk,N1);
 		eof ->
 		    eof
 	    end
@@ -896,7 +922,12 @@ check_if_truncated() ->
 	    find_truncated_proc(TruncatedTag)
     end.
 	    
-find_truncated_proc({?atoms,_Id}) ->
+find_truncated_proc({Tag,_Id}) when Tag==?atoms;
+                                    Tag==?binary;
+                                    Tag==?instr_data;
+                                    Tag==?literals;
+                                    Tag==?memory_status;
+                                    Tag==?memory_map ->
     put(truncated_proc,false);
 find_truncated_proc({Tag,Pid}) ->
     case is_proc_tag(Tag) of
@@ -986,7 +1017,7 @@ general_info(File) ->
 		    instr_info=InstrInfo}.
 
 get_slogan_and_sysvsn(Fd,Acc) ->
-    case val(Fd,eof) of
+    case string(Fd,eof) of
         "Slogan: " ++ SloganPart when Acc==[] ->
             get_slogan_and_sysvsn(Fd,[SloganPart]);
         "System version: " ++ SystemVsn ->
@@ -1000,14 +1031,14 @@ get_slogan_and_sysvsn(Fd,Acc) ->
 get_general_info(Fd,GenInfo) ->
     case line_head(Fd) of
 	"Compiled" ->
-	    get_general_info(Fd,GenInfo#general_info{compile_time=val(Fd)});
+	    get_general_info(Fd,GenInfo#general_info{compile_time=bytes(Fd)});
 	"Taints" ->
-	    Val = case val(Fd) of "-1" -> "(none)"; Line -> Line end,
+	    Val = case string(Fd) of "-1" -> "(none)"; Line -> Line end,
 	    get_general_info(Fd,GenInfo#general_info{taints=Val});
 	"Atoms" ->
-	    get_general_info(Fd,GenInfo#general_info{num_atoms=val(Fd)});
+	    get_general_info(Fd,GenInfo#general_info{num_atoms=bytes(Fd)});
 	"Calling Thread" ->
-	    get_general_info(Fd,GenInfo#general_info{thread=val(Fd)});
+	    get_general_info(Fd,GenInfo#general_info{thread=bytes(Fd)});
 	"=" ++ _next_tag ->
 	    GenInfo;
 	Other ->
@@ -1045,14 +1076,14 @@ procs_summary(File,WS) ->
 
 %%-----------------------------------------------------------------
 %% Page with one process
-get_proc_details(File,Pid,WS,DumpVsn,Binaries) ->
+get_proc_details(File,Pid,WS,DumpVsn) ->
     case lookup_index(?proc,Pid) of
 	[{_,Start}] ->
 	    Fd = open(File),
 	    {{Stack,MsgQ,Dict},TW} =
 		case truncated_warning([{?proc,Pid}]) of
 		    [] ->
-			{expand_memory(Fd,Pid,DumpVsn,Binaries),[]};
+			{expand_memory(Fd,Pid,DumpVsn),[]};
 		    TW0 ->
 			{{[],[],[]},TW0}
 		end,
@@ -1068,15 +1099,15 @@ get_proc_details(File,Pid,WS,DumpVsn,Binaries) ->
 get_procinfo(Fd,Fun,Proc,WS) ->
     case line_head(Fd) of
 	"State" ->
-	    State = case val(Fd) of
+	    State = case bytes(Fd) of
 			"Garbing" -> "Garbing\n(limited info)";
 			State0 -> State0
 		    end,
 	    get_procinfo(Fd,Fun,Proc#proc{state=State},WS);
 	"Name" ->
-	    get_procinfo(Fd,Fun,Proc#proc{name=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{name=string(Fd)},WS);
 	"Spawned as" ->
-	    IF = val(Fd),
+	    IF = string(Fd),
 	    case Proc#proc.name of
 		undefined ->
 		    get_procinfo(Fd,Fun,Proc#proc{name=IF,init_func=IF},WS);
@@ -1085,17 +1116,17 @@ get_procinfo(Fd,Fun,Proc,WS) ->
 	    end;
 	"Message queue length" ->
 	    %% stored as integer so we can sort on it
-	    get_procinfo(Fd,Fun,Proc#proc{msg_q_len=list_to_integer(val(Fd))},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{msg_q_len=list_to_integer(bytes(Fd))},WS);
 	"Reductions" ->
 	    %% stored as integer so we can sort on it
-	    get_procinfo(Fd,Fun,Proc#proc{reds=list_to_integer(val(Fd))},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{reds=list_to_integer(bytes(Fd))},WS);
 	"Stack+heap" ->
 	    %% stored as integer so we can sort on it
 	    get_procinfo(Fd,Fun,Proc#proc{stack_heap=
-					  list_to_integer(val(Fd))*WS},WS);
+					  list_to_integer(bytes(Fd))*WS},WS);
 	"Memory" ->
 	    %% stored as integer so we can sort on it
-	    get_procinfo(Fd,Fun,Proc#proc{memory=list_to_integer(val(Fd))},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{memory=list_to_integer(bytes(Fd))},WS);
 	{eof,_} ->
 	    Proc; % truncated file
 	Other ->
@@ -1117,67 +1148,67 @@ all_procinfo(Fd,Fun,Proc,WS,LineHead) ->
     case LineHead of
 	%% - START - moved from get_procinfo -
 	"Spawned by" ->
-	    case val(Fd) of
+	    case bytes(Fd) of
 		"[]" ->
 		    get_procinfo(Fd,Fun,Proc,WS);
 		Parent ->
 		    get_procinfo(Fd,Fun,Proc#proc{parent=Parent},WS)
 	    end;
 	"Started" ->
-	    get_procinfo(Fd,Fun,Proc#proc{start_time=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{start_time=bytes(Fd)},WS);
 	"Last scheduled in for" ->
 	    get_procinfo(Fd,Fun,Proc#proc{current_func=
 					  {"Last scheduled in for",
-					   val(Fd)}},WS);
+					   string(Fd)}},WS);
 	"Current call" ->
 	    get_procinfo(Fd,Fun,Proc#proc{current_func={"Current call",
-							val(Fd)}},WS);
+							string(Fd)}},WS);
 	"Number of heap fragments" ->
-	    get_procinfo(Fd,Fun,Proc#proc{num_heap_frag=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{num_heap_frag=bytes(Fd)},WS);
 	"Heap fragment data" ->
-	    get_procinfo(Fd,Fun,Proc#proc{heap_frag_data=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{heap_frag_data=bytes(Fd)},WS);
 	"OldHeap" ->
-	    Bytes = list_to_integer(val(Fd))*WS,
+	    Bytes = list_to_integer(bytes(Fd))*WS,
 	    get_procinfo(Fd,Fun,Proc#proc{old_heap=Bytes},WS);
 	"Heap unused" ->
-	    Bytes = list_to_integer(val(Fd))*WS,
+	    Bytes = list_to_integer(bytes(Fd))*WS,
 	    get_procinfo(Fd,Fun,Proc#proc{heap_unused=Bytes},WS);
 	"OldHeap unused" ->
-	    Bytes = list_to_integer(val(Fd))*WS,
+	    Bytes = list_to_integer(bytes(Fd))*WS,
 	    get_procinfo(Fd,Fun,Proc#proc{old_heap_unused=Bytes},WS);
 	"New heap start" ->
-	    get_procinfo(Fd,Fun,Proc#proc{new_heap_start=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{new_heap_start=bytes(Fd)},WS);
 	"New heap top" ->
-	    get_procinfo(Fd,Fun,Proc#proc{new_heap_top=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{new_heap_top=bytes(Fd)},WS);
 	"Stack top" ->
-	    get_procinfo(Fd,Fun,Proc#proc{stack_top=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{stack_top=bytes(Fd)},WS);
 	"Stack end" ->
-	    get_procinfo(Fd,Fun,Proc#proc{stack_end=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{stack_end=bytes(Fd)},WS);
 	"Old heap start" ->
-	    get_procinfo(Fd,Fun,Proc#proc{old_heap_start=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{old_heap_start=bytes(Fd)},WS);
 	"Old heap top" ->
-	    get_procinfo(Fd,Fun,Proc#proc{old_heap_top=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{old_heap_top=bytes(Fd)},WS);
 	"Old heap end" ->
-	    get_procinfo(Fd,Fun,Proc#proc{old_heap_end=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{old_heap_end=bytes(Fd)},WS);
 	%% - END - moved from get_procinfo -
 	"Last calls" ->
-	    get_procinfo(Fd,Fun,Proc#proc{last_calls=get_lines_to_empty(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{last_calls=get_last_calls(Fd)},WS);
 	"Link list" ->
-	    {Links,Monitors,MonitoredBy} = parse_link_list(val(Fd),[],[],[]),
+	    {Links,Monitors,MonitoredBy} = parse_link_list(bytes(Fd),[],[],[]),
 	    get_procinfo(Fd,Fun,Proc#proc{links=Links,
 					  monitors=Monitors,
 					  mon_by=MonitoredBy},WS);
 	"Program counter" ->
-	    get_procinfo(Fd,Fun,Proc#proc{prog_count=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{prog_count=string(Fd)},WS);
 	"CP" ->
-	    get_procinfo(Fd,Fun,Proc#proc{cp=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{cp=string(Fd)},WS);
 	"arity = " ++ Arity ->
 	    %%! Temporary workaround
 	    get_procinfo(Fd,Fun,Proc#proc{arity=Arity--"\r\n"},WS);
 	"Run queue" ->
-	    get_procinfo(Fd,Fun,Proc#proc{run_queue=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{run_queue=string(Fd)},WS);
 	"Internal State" ->
-	    get_procinfo(Fd,Fun,Proc#proc{int_state=val(Fd)},WS);
+	    get_procinfo(Fd,Fun,Proc#proc{int_state=string(Fd)},WS);
 	"=" ++ _next_tag ->
 	    Proc;
 	Other ->
@@ -1185,6 +1216,66 @@ all_procinfo(Fd,Fun,Proc,WS,LineHead) ->
 	    get_procinfo(Fd,Fun,Proc,WS)
     end.
 
+%% The end of the 'Last calls' section is meant to be an empty line,
+%% but in some cases this is not the case, so we also need to look for
+%% the next heading which currently (OTP-20.1) can be "Link list: ",
+%% "Dictionary: " or "Reductions: ". We do this by looking for ": "
+%% and when found, pushing the heading back into the saved chunk.
+%%
+%% Note that the 'Last calls' section is only present if the
+%% 'save_calls' process flag is set.
+get_last_calls(Fd) ->
+    case get_chunk(Fd) of
+	{ok,Bin} ->
+	    get_last_calls(Fd,Bin,[],[]);
+	eof ->
+	    []
+    end.
+get_last_calls(Fd,<<$\n:8,Bin/binary>>,[],Lines) ->
+    %% Empty line - we're done
+    put_chunk(Fd,Bin),
+    lists:reverse(Lines);
+get_last_calls(Fd,<<$::8>>,Acc,Lines) ->
+    case get_chunk(Fd) of
+	{ok,Bin} ->
+            %% Could be a colon followed by a space - see next function clause
+	    get_last_calls(Fd,<<$::8,Bin/binary>>,Acc,Lines);
+	eof ->
+            %% Truncated here - either we've got the next heading, or
+            %% it was truncated in a last call function, in which case
+            %% we note that it was truncated
+            case byte_list_to_string(lists:reverse(Acc)) of
+                NextHeading when NextHeading=="Link list";
+                                 NextHeading=="Dictionary";
+                                 NextHeading=="Reductions" ->
+                    put_chunk(Fd,list_to_binary(NextHeading++":")),
+                    lists:reverse(Lines);
+                LastCallFunction->
+                    lists:reverse(Lines,[LastCallFunction++":...(truncated)"])
+            end
+    end;
+get_last_calls(Fd,<<$\::8,$\s:8,Bin/binary>>,Acc,Lines) ->
+    %% ": " - means we have the next heading in Acc - save it back
+    %% into the chunk and return the lines we've found
+    HeadingBin = list_to_binary(lists:reverse(Acc,[$:])),
+    put_chunk(Fd,<<HeadingBin/binary,Bin/binary>>),
+    lists:reverse(Lines);
+get_last_calls(Fd,<<$\n:8,Bin/binary>>,Acc,Lines) ->
+    get_last_calls(Fd,Bin,[],[byte_list_to_string(lists:reverse(Acc))|Lines]);
+get_last_calls(Fd,<<$\r:8,Bin/binary>>,Acc,Lines) ->
+    get_last_calls(Fd,Bin,Acc,Lines);
+get_last_calls(Fd,<<$\s:8,Bin/binary>>,[],Lines) ->
+    get_last_calls(Fd,Bin,[],Lines);
+get_last_calls(Fd,<<Char:8,Bin/binary>>,Acc,Lines) ->
+    get_last_calls(Fd,Bin,[Char|Acc],Lines);
+get_last_calls(Fd,<<>>,Acc,Lines) ->
+    case get_chunk(Fd) of
+	{ok,Bin} ->
+	    get_last_calls(Fd,Bin,Acc,Lines);
+	eof ->
+	    lists:reverse(Lines,[byte_list_to_string(lists:reverse(Acc))])
+    end.
+
 parse_link_list([SB|Str],Links,Monitors,MonitoredBy) when SB==$[; SB==$] ->
     parse_link_list(Str,Links,Monitors,MonitoredBy);
 parse_link_list("#Port"++_=Str,Links,Monitors,MonitoredBy) ->
@@ -1204,7 +1295,7 @@ parse_link_list(", "++Rest,Links,Monitors,MonitoredBy) ->
 parse_link_list([],Links,Monitors,MonitoredBy) ->
     {lists:reverse(Links),lists:reverse(Monitors),lists:reverse(MonitoredBy)};
 parse_link_list(Unexpected,Links,Monitors,MonitoredBy) ->
-    io:format("WARNING: found unexpected data in link list:~n~s~n",[Unexpected]),
+    io:format("WARNING: found unexpected data in link list:~n~ts~n",[Unexpected]),
     parse_link_list([],Links,Monitors,MonitoredBy).
 
 
@@ -1220,12 +1311,12 @@ parse_monitor("{"++Str) ->
     %% Named process
     {Name,Node,Rest1} = parse_name_node(Str,[]),
     Pid = get_pid_from_name(Name,Node),
-    case parse_link(string:strip(Rest1,left,$,),[]) of
+    case parse_link(string:trim(Rest1,leading,","),[]) of
 	{Ref,"}"++Rest2} ->
 	    %% Bug in break.c - prints an extra "}" for remote
 	    %% nodes... thus the strip
 	    {{Pid,"{"++Name++","++Node++"} ("++Ref++")"},
-	     string:strip(Rest2,left,$})};
+	     string:trim(Rest2,leading,"}")};
 	{Ref,[]} ->
 	    {{Pid,"{"++Name++","++Node++"} ("++Ref++")"},[]}
     end;
@@ -1310,16 +1401,36 @@ maybe_other_node2(Channel) ->
     end.
 
 
-expand_memory(Fd,Pid,DumpVsn,Binaries) ->
+expand_memory(Fd,Pid,DumpVsn) ->
     BinAddrAdj = get_bin_addr_adj(DumpVsn),
     put(fd,Fd),
-    Dict = read_heap(Fd,Pid,BinAddrAdj,Binaries),
+    Dict0 = case get(?literals) of
+                undefined ->
+                    Literals = read_literals(Fd),
+                    put(?literals,Literals),
+                    put(fd,Fd),
+                    Literals;
+                Literals ->
+                    Literals
+            end,
+    Dict = read_heap(Fd,Pid,BinAddrAdj,Dict0),
     Expanded = {read_stack_dump(Fd,Pid,BinAddrAdj,Dict),
 		read_messages(Fd,Pid,BinAddrAdj,Dict),
 		read_dictionary(Fd,Pid,BinAddrAdj,Dict)},
     erase(fd),
     Expanded.
 
+read_literals(Fd) ->
+    case lookup_index(?literals,[]) of
+	[{_,Start}] ->
+            [{_,Chars}] = ets:lookup(cdv_heap_file_chars,literals),
+            init_progress("Reading literals",Chars),
+	    pos_bof(Fd,Start),
+	    read_heap(0,gb_trees:empty());
+        [] ->
+            gb_trees:empty()
+    end.
+
 %%%-----------------------------------------------------------------
 %%% This is a workaround for a bug in dump versions prior to 0.3:
 %%% Addresses were truncated to 32 bits. This could cause binaries to
@@ -1331,25 +1442,6 @@ get_bin_addr_adj(_) ->
     0.
 
 %%%
-%%% Read binaries.
-%%%
-read_binaries(Fd,DumpVsn) ->
-    AllBinaries = lookup_index(?binary),
-    AddrAdj = get_bin_addr_adj(DumpVsn),
-    Fun = fun({Addr0,Pos},Dict0) ->
-		  pos_bof(Fd,Pos),
-		  {HexAddr,_} = get_hex(Addr0),
-		  Addr = HexAddr bor AddrAdj,
-		  Bin =
-		      case line_head(Fd) of
-			  {eof,_} -> '#CDVTruncatedBinary';
-			  _Size   -> {'#CDVBin',Pos}
-		      end,
-		  gb_trees:enter(Addr,Bin,Dict0)
-	  end,
-    progress_foldl("Processing binaries",Fun,gb_trees:empty(),AllBinaries).
-
-%%%
 %%% Read top level section.
 %%%
 
@@ -1363,7 +1455,7 @@ read_stack_dump(Fd,Pid,BinAddrAdj,Dict) ->
     end.
 read_stack_dump1(Fd,BinAddrAdj,Dict,Acc) ->
     %% This function is never called if the dump is truncated in {?proc_heap,Pid}
-    case val(Fd) of
+    case bytes(Fd) of
 	"=" ++ _next_tag ->
 	    lists:reverse(Acc);
 	Line ->
@@ -1391,7 +1483,7 @@ read_messages(Fd,Pid,BinAddrAdj,Dict) ->
     end.
 read_messages1(Fd,BinAddrAdj,Dict,Acc) ->
     %% This function is never called if the dump is truncated in {?proc_heap,Pid}
-    case val(Fd) of
+    case bytes(Fd) of
 	"=" ++ _next_tag ->
 	    lists:reverse(Acc);
 	Line ->
@@ -1419,7 +1511,7 @@ read_dictionary(Fd,Pid,BinAddrAdj,Dict) ->
     end.
 read_dictionary1(Fd,BinAddrAdj,Dict,Acc) ->
     %% This function is never called if the dump is truncated in {?proc_heap,Pid}
-    case val(Fd) of
+    case bytes(Fd) of
 	"=" ++ _next_tag ->
 	    lists:reverse(Acc);
 	Line ->
@@ -1439,6 +1531,8 @@ parse_dictionary(Line0, BinAddrAdj, D) ->
 read_heap(Fd,Pid,BinAddrAdj,Dict0) ->
     case lookup_index(?proc_heap,Pid) of
 	[{_,Pos}] ->
+            [{_,Chars}] = ets:lookup(cdv_heap_file_chars,Pid),
+            init_progress("Reading process heap",Chars),
 	    pos_bof(Fd,Pos),
 	    read_heap(BinAddrAdj,Dict0);
 	[] ->
@@ -1449,13 +1543,16 @@ read_heap(BinAddrAdj,Dict0) ->
     %% This function is never called if the dump is truncated in {?proc_heap,Pid}
     case get(fd) of
 	end_of_heap ->
+            end_progress(),
 	    Dict0;
 	Fd ->
-	    case val(Fd) of
+	    case bytes(Fd) of
 		"=" ++ _next_tag ->
+                    end_progress(),
 		    put(fd, end_of_heap),
 		    Dict0;
 		Line ->
+                    update_progress(length(Line)+1),
 		    Dict = parse(Line,BinAddrAdj,Dict0),
 		    read_heap(BinAddrAdj,Dict)
 	    end
@@ -1491,49 +1588,49 @@ get_ports(File) ->
 %% Converting port string to tuple to secure correct sorting. This is
 %% converted back in cdv_port_cb:format/1.
 port_to_tuple("#Port<"++Port) ->
-    [I1,I2] = string:tokens(Port,".>"),
+    [I1,I2] = string:lexemes(Port,".>"),
     {list_to_integer(I1),list_to_integer(I2)}.
 
 get_portinfo(Fd,Port) ->
     case line_head(Fd) of
 	"Slot" ->
 	    %% stored as integer so we can sort on it
-	    get_portinfo(Fd,Port#port{slot=list_to_integer(val(Fd))});
+	    get_portinfo(Fd,Port#port{slot=list_to_integer(bytes(Fd))});
 	"Connected" ->
 	    %% stored as pid so we can sort on it
-	    Connected0 = val(Fd),
+	    Connected0 = bytes(Fd),
 	    Connected =
 		try list_to_pid(Connected0)
 		catch error:badarg -> Connected0
 		end,
 	    get_portinfo(Fd,Port#port{connected=Connected});
 	"Links" ->
-	    Pids = split_pid_list_no_space(val(Fd)),
+	    Pids = split_pid_list_no_space(bytes(Fd)),
 	    Links = [{Pid,Pid} || Pid <- Pids],
 	    get_portinfo(Fd,Port#port{links=Links});
 	"Registered as" ->
-	    get_portinfo(Fd,Port#port{name=val(Fd)});
+	    get_portinfo(Fd,Port#port{name=string(Fd)});
 	"Monitors" ->
-	    Monitors0 = string:tokens(val(Fd),"()"),
+	    Monitors0 = string:lexemes(bytes(Fd),"()"),
 	    Monitors = [begin
-			    [Pid,Ref] = string:tokens(Mon,","),
+			    [Pid,Ref] = string:lexemes(Mon,","),
 			    {Pid,Pid++" ("++Ref++")"}
 			end || Mon <- Monitors0],
 	    get_portinfo(Fd,Port#port{monitors=Monitors});
 	"Port controls linked-in driver" ->
-	    Str = lists:flatten(["Linked in driver: " | val(Fd)]),
+	    Str = lists:flatten(["Linked in driver: " | string(Fd)]),
 	    get_portinfo(Fd,Port#port{controls=Str});
 	"Port controls forker process" ->
-	    Str = lists:flatten(["Forker process: " | val(Fd)]),
+	    Str = lists:flatten(["Forker process: " | string(Fd)]),
 	    get_portinfo(Fd,Port#port{controls=Str});
 	"Port controls external process" ->
-	    Str = lists:flatten(["External proc: " | val(Fd)]),
+	    Str = lists:flatten(["External proc: " | string(Fd)]),
 	    get_portinfo(Fd,Port#port{controls=Str});
 	"Port is a file" ->
-	    Str = lists:flatten(["File: "| val(Fd)]),
+	    Str = lists:flatten(["File: "| string(Fd)]),
 	    get_portinfo(Fd,Port#port{controls=Str});
 	"Port is UNIX fd not opened by emulator" ->
-	    Str = lists:flatten(["UNIX fd not opened by emulator: "| val(Fd)]),
+	    Str = lists:flatten(["UNIX fd not opened by emulator: "| string(Fd)]),
 	    get_portinfo(Fd,Port#port{controls=Str});
 	"=" ++ _next_tag ->
 	    Port;
@@ -1566,23 +1663,23 @@ tab_is_named(#ets_table{}) -> "no".
 get_etsinfo(Fd,EtsTable = #ets_table{details=Ds},WS) ->
     case line_head(Fd) of
 	"Slot" ->
-	    get_etsinfo(Fd,EtsTable#ets_table{slot=list_to_integer(val(Fd))},WS);
+	    get_etsinfo(Fd,EtsTable#ets_table{slot=list_to_integer(bytes(Fd))},WS);
 	"Table" ->
-	    get_etsinfo(Fd,EtsTable#ets_table{id=val(Fd)},WS);
+	    get_etsinfo(Fd,EtsTable#ets_table{id=string(Fd)},WS);
 	"Name" ->
-	    get_etsinfo(Fd,EtsTable#ets_table{name=val(Fd)},WS);
+	    get_etsinfo(Fd,EtsTable#ets_table{name=string(Fd)},WS);
 	"Ordered set (AVL tree), Elements" ->
 	    skip_rest_of_line(Fd),
 	    get_etsinfo(Fd,EtsTable#ets_table{data_type="tree"},WS);
 	"Buckets" ->
 	    %% A bug in erl_db_hash.c prints a space after the buckets
 	    %% - need to strip the string to make list_to_integer/1 happy.
-	    Buckets = list_to_integer(string:strip(val(Fd))),
+	    Buckets = list_to_integer(string:trim(bytes(Fd),both,"\s")),
 	    get_etsinfo(Fd,EtsTable#ets_table{buckets=Buckets},WS);
 	"Objects" ->
-	    get_etsinfo(Fd,EtsTable#ets_table{size=list_to_integer(val(Fd))},WS);
+	    get_etsinfo(Fd,EtsTable#ets_table{size=list_to_integer(bytes(Fd))},WS);
 	"Words" ->
-	    Words = list_to_integer(val(Fd)),
+	    Words = list_to_integer(bytes(Fd)),
 	    Bytes = 
 		case Words of
 		    -1 -> -1; % probably truncated
@@ -1592,37 +1689,39 @@ get_etsinfo(Fd,EtsTable = #ets_table{details=Ds},WS) ->
 	"=" ++ _next_tag ->
 	    EtsTable;
 	"Chain Length Min" ->
-	    Val = val(Fd),
+	    Val = bytes(Fd),
 	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{chain_min=>Val}},WS);
 	"Chain Length Avg" ->
-	    Val = try list_to_float(string:strip(val(Fd))) catch _:_ -> "-" end,
+	    Val = try list_to_float(string:trim(bytes(Fd),both,"\s"))
+                  catch _:_ -> "-"
+                  end,
 	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{chain_avg=>Val}},WS);
 	"Chain Length Max" ->
-	    Val = val(Fd),
+	    Val = bytes(Fd),
 	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{chain_max=>Val}},WS);
 	"Chain Length Std Dev" ->
-	    Val = val(Fd),
+	    Val = bytes(Fd),
 	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{chain_stddev=>Val}},WS);
 	"Chain Length Expected Std Dev" ->
-	    Val = val(Fd),
+	    Val = bytes(Fd),
 	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{chain_exp_stddev=>Val}},WS);
 	"Fixed" ->
-	    Val = val(Fd),
+	    Val = bytes(Fd),
 	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{fixed=>Val}},WS);
 	"Type" ->
-	    Val = val(Fd),
+	    Val = bytes(Fd),
 	    get_etsinfo(Fd,EtsTable#ets_table{data_type=Val},WS);
 	"Protection" ->
-	    Val = val(Fd),
+	    Val = bytes(Fd),
 	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{protection=>Val}},WS);
 	"Compressed" ->
-	    Val = val(Fd),
+	    Val = bytes(Fd),
 	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{compressed=>Val}},WS);
 	"Write Concurrency" ->
-	    Val = val(Fd),
+	    Val = bytes(Fd),
 	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{write_c=>Val}},WS);
 	"Read Concurrency" ->
-	    Val = val(Fd),
+	    Val = bytes(Fd),
 	    get_etsinfo(Fd,EtsTable#ets_table{details=Ds#{read_c=>Val}},WS);
 	Other ->
 	    unexpected(Fd,Other,"ETS info"),
@@ -1672,9 +1771,9 @@ get_timerinfo(Fd,Id) ->
 get_timerinfo_1(Fd,Timer) ->
     case line_head(Fd) of
 	"Message" ->
-	    get_timerinfo_1(Fd,Timer#timer{msg=val(Fd)});
+	    get_timerinfo_1(Fd,Timer#timer{msg=string(Fd)});
 	"Time left" ->
-	    TimeLeft = list_to_integer(val(Fd) -- " ms"),
+	    TimeLeft = list_to_integer(bytes(Fd) -- " ms"),
 	    get_timerinfo_1(Fd,Timer#timer{time=TimeLeft});
 	"=" ++ _next_tag ->
 	    Timer;
@@ -1743,37 +1842,37 @@ get_nodeinfo(Fd,Channel,Type,Start) ->
 get_nodeinfo(Fd,Nod) ->
     case line_head(Fd) of
 	"Name" ->
-	    get_nodeinfo(Fd,Nod#nod{name=val(Fd)});
+	    get_nodeinfo(Fd,Nod#nod{name=bytes(Fd)});
 	"Controller" ->
-	    get_nodeinfo(Fd,Nod#nod{controller=val(Fd)});
+	    get_nodeinfo(Fd,Nod#nod{controller=bytes(Fd)});
 	"Creation" ->
 	    %% Throwing away elements like "(refc=1)", which might be
 	    %% printed from a debug compiled emulator.
 	    Creations = lists:flatmap(fun(C) -> try [list_to_integer(C)]
 						catch error:badarg -> []
 						end
-				      end, string:tokens(val(Fd)," ")),
+				      end, string:lexemes(bytes(Fd)," ")),
 	    get_nodeinfo(Fd,Nod#nod{creation={creations,Creations}});
 	"Remote link" ->
-	    Procs = val(Fd), % e.g. "<0.31.0> <4322.54.0>"
+	    Procs = bytes(Fd), % e.g. "<0.31.0> <4322.54.0>"
 	    {Local,Remote} = split(Procs),
 	    Str = Local++" <-> "++Remote,
 	    NewRemLinks = [{Local,Str} | Nod#nod.remote_links],
 	    get_nodeinfo(Fd,Nod#nod{remote_links=NewRemLinks});
 	"Remote monitoring" ->
-	    Procs = val(Fd), % e.g. "<0.31.0> <4322.54.0>"
+	    Procs = bytes(Fd), % e.g. "<0.31.0> <4322.54.0>"
 	    {Local,Remote} = split(Procs),
 	    Str = Local++" -> "++Remote,
 	    NewRemMon = [{Local,Str} | Nod#nod.remote_mon],
 	    get_nodeinfo(Fd,Nod#nod{remote_mon=NewRemMon});
 	"Remotely monitored by" ->
-	    Procs = val(Fd), % e.g. "<0.31.0> <4322.54.0>"
+	    Procs = bytes(Fd), % e.g. "<0.31.0> <4322.54.0>"
 	    {Local,Remote} = split(Procs),
 	    Str = Local++" <- "++Remote,
 	    NewRemMonBy = [{Local,Str} | Nod#nod.remote_mon_by],
 	    get_nodeinfo(Fd,Nod#nod{remote_mon_by=NewRemMonBy});
 	"Error" ->
-	    get_nodeinfo(Fd,Nod#nod{error="ERROR: "++val(Fd)});
+	    get_nodeinfo(Fd,Nod#nod{error="ERROR: "++string(Fd)});
 	"=" ++ _next_tag ->
 	    Nod;
 	Other ->
@@ -1817,9 +1916,9 @@ loaded_mods(File) ->
 get_loaded_mod_totals(Fd,{CC,OC}) ->
     case line_head(Fd) of
 	"Current code" ->
-	    get_loaded_mod_totals(Fd,{val(Fd),OC});
+	    get_loaded_mod_totals(Fd,{bytes(Fd),OC});
 	"Old code" ->
-	    get_loaded_mod_totals(Fd,{CC,val(Fd)});
+	    get_loaded_mod_totals(Fd,{CC,bytes(Fd)});
 	"=" ++ _next_tag ->
 	    {CC,OC};
 	Other ->
@@ -1830,10 +1929,10 @@ get_loaded_mod_totals(Fd,{CC,OC}) ->
 get_loaded_mod_info(Fd,LM,Fun) ->
     case line_head(Fd) of
 	"Current size" ->
-	    CS = list_to_integer(val(Fd)),
+	    CS = list_to_integer(bytes(Fd)),
 	    get_loaded_mod_info(Fd,LM#loaded_mod{current_size=CS},Fun);
 	"Old size" ->
-	    OS = list_to_integer(val(Fd)),
+	    OS = list_to_integer(bytes(Fd)),
 	    get_loaded_mod_info(Fd,LM#loaded_mod{old_size=OS},Fun);
 	"=" ++ _next_tag ->
 	    LM;
@@ -1849,16 +1948,16 @@ main_modinfo(_Fd,LM,_LineHead) ->
 all_modinfo(Fd,LM,LineHead) ->
     case LineHead of
 	"Current attributes" ->
-	    Str = hex_to_str(val(Fd,"")),
+	    Str = hex_to_str(bytes(Fd,"")),
 	    LM#loaded_mod{current_attrib=Str};
 	"Current compilation info" ->
-	    Str = hex_to_str(val(Fd,"")),
+	    Str = hex_to_str(bytes(Fd,"")),
 	    LM#loaded_mod{current_comp_info=Str};
 	"Old attributes" ->
-	    Str = hex_to_str(val(Fd,"")),
+	    Str = hex_to_str(bytes(Fd,"")),
 	    LM#loaded_mod{old_attrib=Str};
 	"Old compilation info" ->
-	    Str = hex_to_str(val(Fd,"")),
+	    Str = hex_to_str(bytes(Fd,"")),
 	    LM#loaded_mod{old_comp_info=Str};
 	Other ->
 	    unexpected(Fd,Other,"loaded modules info"),
@@ -1868,7 +1967,7 @@ all_modinfo(Fd,LM,LineHead) ->
 
 hex_to_str(Hex) ->
     Term = hex_to_term(Hex,[]),
-    io_lib:format("~p~n",[Term]).
+    io_lib:format("~tp~n",[Term]).
 
 hex_to_term([X,Y|Hex],Acc) ->
     MS = hex_to_dec([X]),
@@ -1909,17 +2008,17 @@ funs(File) ->
 get_funinfo(Fd,Fu) ->
     case line_head(Fd) of
 	"Module" ->
-	    get_funinfo(Fd,Fu#fu{module=val(Fd)});
+	    get_funinfo(Fd,Fu#fu{module=bytes(Fd)});
 	"Uniq" ->
-	    get_funinfo(Fd,Fu#fu{uniq=list_to_integer(val(Fd))});
+	    get_funinfo(Fd,Fu#fu{uniq=list_to_integer(bytes(Fd))});
 	"Index" ->
-	    get_funinfo(Fd,Fu#fu{index=list_to_integer(val(Fd))});
+	    get_funinfo(Fd,Fu#fu{index=list_to_integer(bytes(Fd))});
 	"Address" ->
-	    get_funinfo(Fd,Fu#fu{address=val(Fd)});
+	    get_funinfo(Fd,Fu#fu{address=bytes(Fd)});
 	"Native_address" ->
-	    get_funinfo(Fd,Fu#fu{native_address=val(Fd)});
+	    get_funinfo(Fd,Fu#fu{native_address=bytes(Fd)});
 	"Refc" ->
-	    get_funinfo(Fd,Fu#fu{refc=list_to_integer(val(Fd))});
+	    get_funinfo(Fd,Fu#fu{refc=list_to_integer(bytes(Fd))});
 	"=" ++ _next_tag ->
 	    Fu;
 	Other ->
@@ -1999,7 +2098,7 @@ get_meminfo(Fd,Acc) ->
 	{eof,_last_line} ->
 	    lists:reverse(Acc);
 	Key ->
-	    get_meminfo(Fd,[{list_to_atom(Key),val(Fd)}|Acc])
+	    get_meminfo(Fd,[{list_to_atom(Key),bytes(Fd)}|Acc])
     end.
 
 %%-----------------------------------------------------------------
@@ -2023,7 +2122,7 @@ get_allocareainfo(Fd,Acc) ->
 	{eof,_last_line} ->
 	    lists:reverse(Acc);
 	Key ->
-	    Val = val(Fd),
+	    Val = bytes(Fd),
 	    AllocInfo =
 		case split(Val) of
 		    {Alloc,[]} ->
@@ -2061,7 +2160,7 @@ get_allocatorinfo1(Fd,Acc,Max) ->
 	{eof,_last_line} ->
 	    pad_and_reverse(Acc,Max,[]);
 	Key ->
-	    Values = get_all_vals(val(Fd),[]),
+	    Values = get_all_vals(bytes(Fd),[]),
 	    L = length(Values),
 	    Max1 = if L > Max -> L; true -> Max end,
 	    get_allocatorinfo1(Fd,[{Key,Values}|Acc],Max1)
@@ -2198,7 +2297,7 @@ get_size_value(Key,Data) ->
 %% and Value is the sum over all allocator instances of each type.
 sort_allocator_types([{Name,Data}|Allocators],Acc,DoTotal) ->
     Type =
-	case string:tokens(Name,"[]") of
+	case string:lexemes(Name,"[]") of
 	    [T,_Id] -> T;
 	    [Name] -> Name;
             Other -> Other
@@ -2316,13 +2415,13 @@ get_hashtableinfo(Fd,Name,Start) ->
 get_hashtableinfo1(Fd,HashTable) ->
     case line_head(Fd) of
 	"size" ->
-	    get_hashtableinfo1(Fd,HashTable#hash_table{size=val(Fd)});
+	    get_hashtableinfo1(Fd,HashTable#hash_table{size=bytes(Fd)});
 	"used" ->
-	    get_hashtableinfo1(Fd,HashTable#hash_table{used=val(Fd)});
+	    get_hashtableinfo1(Fd,HashTable#hash_table{used=bytes(Fd)});
 	"objs" ->
-	    get_hashtableinfo1(Fd,HashTable#hash_table{objs=val(Fd)});
+	    get_hashtableinfo1(Fd,HashTable#hash_table{objs=bytes(Fd)});
 	"depth" ->
-	    get_hashtableinfo1(Fd,HashTable#hash_table{depth=val(Fd)});
+	    get_hashtableinfo1(Fd,HashTable#hash_table{depth=bytes(Fd)});
     	"=" ++ _next_tag ->
 	    HashTable;
 	Other ->
@@ -2353,15 +2452,15 @@ get_indextableinfo(Fd,Name,Start) ->
 get_indextableinfo1(Fd,IndexTable) ->
     case line_head(Fd) of
 	"size" ->
-	    get_indextableinfo1(Fd,IndexTable#index_table{size=val(Fd)});
+	    get_indextableinfo1(Fd,IndexTable#index_table{size=bytes(Fd)});
 	"used" ->
-	    get_indextableinfo1(Fd,IndexTable#index_table{used=val(Fd)});
+	    get_indextableinfo1(Fd,IndexTable#index_table{used=bytes(Fd)});
 	"limit" ->
-	    get_indextableinfo1(Fd,IndexTable#index_table{limit=val(Fd)});
+	    get_indextableinfo1(Fd,IndexTable#index_table{limit=bytes(Fd)});
 	"rate" ->
-	    get_indextableinfo1(Fd,IndexTable#index_table{rate=val(Fd)});
+	    get_indextableinfo1(Fd,IndexTable#index_table{rate=bytes(Fd)});
 	"entries" ->
-	    get_indextableinfo1(Fd,IndexTable#index_table{entries=val(Fd)});
+	    get_indextableinfo1(Fd,IndexTable#index_table{entries=bytes(Fd)});
     	"=" ++ _next_tag ->
 	    IndexTable;
 	Other ->
@@ -2393,45 +2492,45 @@ get_schedulerinfo(Fd,Name,Start) ->
 get_schedulerinfo1(Fd,Sched=#sched{details=Ds}) ->
     case line_head(Fd) of
 	"Current Process" ->
-	    get_schedulerinfo1(Fd,Sched#sched{process=val(Fd, "None")});
+	    get_schedulerinfo1(Fd,Sched#sched{process=bytes(Fd, "None")});
 	"Current Port" ->
-	    get_schedulerinfo1(Fd,Sched#sched{port=val(Fd, "None")});
+	    get_schedulerinfo1(Fd,Sched#sched{port=bytes(Fd, "None")});
 	"Run Queue Max Length" ->
-	    RQMax = list_to_integer(val(Fd)),
+	    RQMax = list_to_integer(bytes(Fd)),
 	    RQ = RQMax + Sched#sched.run_q,
 	    get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_max=>RQMax}});
 	"Run Queue High Length" ->
-	    RQHigh = list_to_integer(val(Fd)),
+	    RQHigh = list_to_integer(bytes(Fd)),
 	    RQ = RQHigh + Sched#sched.run_q,
 	    get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_high=>RQHigh}});
 	"Run Queue Normal Length" ->
-	    RQNorm = list_to_integer(val(Fd)),
+	    RQNorm = list_to_integer(bytes(Fd)),
 	    RQ = RQNorm + Sched#sched.run_q,
 	    get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_norm=>RQNorm}});
 	"Run Queue Low Length" ->
-	    RQLow = list_to_integer(val(Fd)),
+	    RQLow = list_to_integer(bytes(Fd)),
 	    RQ = RQLow + Sched#sched.run_q,
 	    get_schedulerinfo1(Fd,Sched#sched{run_q=RQ, details=Ds#{runq_low=>RQLow}});
 	"Run Queue Port Length" ->
-	    RQ = list_to_integer(val(Fd)),
+	    RQ = list_to_integer(bytes(Fd)),
 	    get_schedulerinfo1(Fd,Sched#sched{port_q=RQ});
 
 	"Scheduler Sleep Info Flags" ->
-	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{sleep_info=>val(Fd, "None")}});
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{sleep_info=>bytes(Fd, "None")}});
 	"Scheduler Sleep Info Aux Work" ->
-	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{sleep_aux=>val(Fd, "None")}});
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{sleep_aux=>bytes(Fd, "None")}});
 
 	"Run Queue Flags" ->
-	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{runq_flags=>val(Fd, "None")}});
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{runq_flags=>bytes(Fd, "None")}});
 
 	"Current Process State" ->
-	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_state=>val(Fd)}});
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_state=>bytes(Fd)}});
 	"Current Process Internal State" ->
-	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_int_state=>val(Fd)}});
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_int_state=>bytes(Fd)}});
 	"Current Process Program counter" ->
-	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_prg_cnt=>val(Fd)}});
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_prg_cnt=>string(Fd)}});
 	"Current Process CP" ->
-	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_cp=>val(Fd)}});
+	    get_schedulerinfo1(Fd,Sched#sched{details=Ds#{currp_cp=>string(Fd)}});
 	"Current Process Limited Stack Trace" ->
 	    %% If there shall be last in scheduler information block
 	    Sched#sched{details=get_limited_stack(Fd, 0, Ds)};
@@ -2443,7 +2542,7 @@ get_schedulerinfo1(Fd,Sched=#sched{details=Ds}) ->
     end.
 
 get_limited_stack(Fd, N, Ds) ->
-    case val(Fd) of
+    case string(Fd) of
 	Addr = "0x" ++ _ ->
 	    get_limited_stack(Fd, N+1, Ds#{{currp_stack, N} => Addr});
 	"=" ++ _next_tag ->
@@ -2509,9 +2608,9 @@ parse_heap_term("Yc"++Line0, Addr, BinAddrAdj, D0) ->	%Reference-counted binary.
     {Offset,":"++Line2} = get_hex(Line1),
     {Sz,Line} = get_hex(Line2),
     Binp = Binp0 bor BinAddrAdj,
-    Term = case gb_trees:lookup(Binp, D0) of
-	       {value,Bin} -> cdvbin(Offset,Sz,Bin);
-	       none -> '#CDVNonexistingBinary'
+    Term = case lookup_binary_index(Binp) of
+               [{_,Start}] -> cdvbin(Offset,Sz,{'#CDVBin',Start});
+	       [] -> '#CDVNonexistingBinary'
 	   end,
     D = gb_trees:insert(Addr, Term, D0),
     {Term,Line,D};
@@ -2520,19 +2619,36 @@ parse_heap_term("Ys"++Line0, Addr, BinAddrAdj, D0) ->	%Sub binary.
     {Offset,":"++Line2} = get_hex(Line1),
     {Sz,Line} = get_hex(Line2),
     Binp = Binp0 bor BinAddrAdj,
-    Term = case gb_trees:lookup(Binp, D0) of
-	       {value,Bin} -> cdvbin(Offset,Sz,Bin);
-	       none when Binp0=/=Binp ->
+    Term = case lookup_binary_index(Binp) of
+               [{_,Start}] -> cdvbin(Offset,Sz,{'#CDVBin',Start});
+	       [] ->
 		   %% Might it be on the heap?
-		   case gb_trees:lookup(Binp0, D0) of
+		   case gb_trees:lookup(Binp, D0) of
 		       {value,Bin} -> cdvbin(Offset,Sz,Bin);
 		       none -> '#CDVNonexistingBinary'
-		   end;
-	       none -> '#CDVNonexistingBinary'
+		   end
 	   end,
     D = gb_trees:insert(Addr, Term, D0),
-    {Term,Line,D}.
-
+    {Term,Line,D};
+parse_heap_term("Mf"++Line0, Addr, BinAddrAdj, D0) -> %Flatmap.
+    {Size,":"++Line1} = get_hex(Line0),
+    {Keys,":"++Line2,D1} = parse_term(Line1, BinAddrAdj, D0),
+    {Values,Line,D2} = parse_tuple(Size, Line2, Addr,BinAddrAdj, D1, []),
+    Pairs = zip_tuples(tuple_size(Keys), Keys, Values, []),
+    Map = maps:from_list(Pairs),
+    D = gb_trees:update(Addr, Map, D2),
+    {Map,Line,D};
+parse_heap_term("Mh"++Line0, Addr, BinAddrAdj, D0) -> %Head node in a hashmap.
+    {MapSize,":"++Line1} = get_hex(Line0),
+    {N,":"++Line2} = get_hex(Line1),
+    {Nodes,Line,D1} = parse_tuple(N, Line2, Addr, BinAddrAdj, D0, []),
+    Map = maps:from_list(flatten_hashmap_nodes(Nodes)),
+    MapSize = maps:size(Map),                   %Assertion.
+    D = gb_trees:update(Addr, Map, D1),
+    {Map,Line,D};
+parse_heap_term("Mn"++Line0, Addr, BinAddrAdj, D) -> %Interior node in a hashmap.
+    {N,":"++Line} = get_hex(Line0),
+    parse_tuple(N, Line, Addr, BinAddrAdj, D, []).
 
 parse_tuple(0, Line, Addr, _, D0, Acc) ->
     Tuple = list_to_tuple(lists:reverse(Acc)),
@@ -2546,6 +2662,25 @@ parse_tuple(N, Line0, Addr, BinAddrAdj, D0, Acc) ->
 	    parse_tuple(N-1, Line, Addr, BinAddrAdj, D, [Term|Acc])
     end.
 
+zip_tuples(0, _T1, _T2, Acc) ->
+    Acc;
+zip_tuples(N, T1, T2, Acc) when N =< tuple_size(T1) ->
+    zip_tuples(N-1, T1, T2, [{element(N, T1),element(N, T2)}|Acc]).
+
+flatten_hashmap_nodes(Tuple) ->
+    flatten_hashmap_nodes_1(tuple_size(Tuple), Tuple, []).
+
+flatten_hashmap_nodes_1(0, _Tuple, Acc) ->
+    Acc;
+flatten_hashmap_nodes_1(N, Tuple0, Acc0) ->
+    case element(N, Tuple0) of
+        [K|V] ->
+            flatten_hashmap_nodes_1(N-1, Tuple0, [{K,V}|Acc0]);
+        Tuple when is_tuple(Tuple) ->
+            Acc = flatten_hashmap_nodes_1(N-1, Tuple0, Acc0),
+            flatten_hashmap_nodes_1(tuple_size(Tuple), Tuple, Acc)
+    end.
+
 parse_term([$H|Line0], BinAddrAdj, D) ->        %Pointer to heap term.
     {Ptr,Line} = get_hex(Line0),
     deref_ptr(Ptr, Line, BinAddrAdj, D);
@@ -2595,7 +2730,7 @@ skip_dist_ext([C|Cs], KeptCs) ->
 parse_atom([$A|Line0], D) ->
     {N,":"++Line1} = get_hex(Line0),
     {Chars, Line} = get_chars(N, Line1),
-    {list_to_atom(Chars), Line, D}.
+    {binary_to_atom(list_to_binary(Chars),utf8), Line, D}.
 
 parse_atom_translation_table(0, Line0, As) ->
     {list_to_tuple(lists:reverse(As)), Line0};
@@ -2614,11 +2749,12 @@ deref_ptr(Ptr, Line, BinAddrAdj, D0) ->
 		end_of_heap ->
 		    {['#CDVIncompleteHeap'],Line,D0};
 		Fd ->
-		    case val(Fd) of
+		    case bytes(Fd) of
 			"="++_ ->
 			    put(fd, end_of_heap),
 			    deref_ptr(Ptr, Line, BinAddrAdj, D0);
 			L ->
+                            update_progress(length(L)+1),
 			    D = parse(L, BinAddrAdj, D0),
 			    deref_ptr(Ptr, Line, BinAddrAdj, D)
 		    end
@@ -2684,19 +2820,33 @@ get_label([H|T], Acc) ->
     get_label(T, [H|Acc]).
 
 get_binary(Line0) ->
-    {N,":"++Line} = get_hex(Line0),
-    do_get_binary(N, Line, []).
+    case get_hex(Line0) of
+        {N,":"++Line} ->
+            do_get_binary(N, Line, [], false);
+        _  ->
+           {'#CDVTruncatedBinary',[]}
+    end.
 
 get_binary(Offset,Size,Line0) ->
-    {_N,":"++Line} = get_hex(Line0),
-    do_get_binary(Size, lists:sublist(Line,(Offset*2)+1,Size*2), []).
-
-do_get_binary(0, Line, Acc) ->
+    case get_hex(Line0) of
+        {_N,":"++Line} ->
+            Progress = Size>?binary_size_progress_limit,
+            Progress andalso init_progress("Reading binary",Size),
+            do_get_binary(Size, lists:sublist(Line,(Offset*2)+1,Size*2), [],
+                          Progress);
+        _  ->
+           {'#CDVTruncatedBinary',[]}
+    end.
+
+do_get_binary(0, Line, Acc, Progress) ->
+    Progress andalso end_progress(),
     {list_to_binary(lists:reverse(Acc)),Line};
-do_get_binary(N, [A,B|Line], Acc) ->
+do_get_binary(N, [A,B|Line], Acc, Progress) ->
     Byte = (get_hex_digit(A) bsl 4) bor get_hex_digit(B),
-    do_get_binary(N-1, Line, [Byte|Acc]);
-do_get_binary(_N, [], _Acc) ->
+    Progress andalso update_progress(),
+    do_get_binary(N-1, Line, [Byte|Acc], Progress);
+do_get_binary(_N, [], _Acc, Progress) ->
+    Progress andalso end_progress(),
     {'#CDVTruncatedBinary',[]}.
 
 cdvbin(Offset,Size,{'#CDVBin',Pos}) ->
@@ -2704,16 +2854,25 @@ cdvbin(Offset,Size,{'#CDVBin',Pos}) ->
 cdvbin(Offset,Size,['#CDVBin',_,_,Pos]) ->
     ['#CDVBin',Offset,Size,Pos];
 cdvbin(_,_,'#CDVTruncatedBinary') ->
-    '#CDVTruncatedBinary'.
+    '#CDVTruncatedBinary';
+cdvbin(_,_,'#CDVNonexistingBinary') ->
+    '#CDVNonexistingBinary'.
 
 %%-----------------------------------------------------------------
-%% Functions for accessing the cdv_dump_index_table
-reset_index_table() ->
-    ets:delete_all_objects(cdv_dump_index_table).
+%% Functions for accessing tables
+reset_tables() ->
+    ets:delete_all_objects(cdv_dump_index_table),
+    ets:delete_all_objects(cdv_reg_proc_table),
+    ets:delete_all_objects(cdv_binary_index_table),
+    ets:delete_all_objects(cdv_heap_file_chars).
 
 insert_index(Tag,Id,Pos) ->
     ets:insert(cdv_dump_index_table,{{Tag,Pos},Id}).
 
+delete_index(Tag,Id) ->
+    Ms = [{{{Tag,'$1'},Id},[],[true]}],
+    ets:select_delete(cdv_dump_index_table, Ms).
+
 lookup_index({Tag,Id}) ->
     lookup_index(Tag,Id);
 lookup_index(Tag) ->
@@ -2724,6 +2883,12 @@ lookup_index(Tag,Id) ->
 count_index(Tag) ->
     ets:select_count(cdv_dump_index_table,[{{{Tag,'_'},'_'},[],[true]}]).
 
+insert_binary_index(Addr,Pos) ->
+    ets:insert(cdv_binary_index_table,{Addr,Pos}).
+
+lookup_binary_index(Addr) ->
+    ets:lookup(cdv_binary_index_table,Addr).
+
 
 %%-----------------------------------------------------------------
 %% Convert tags read from crashdump to atoms used as first part of key
@@ -2742,6 +2907,7 @@ tag_to_atom("hidden_node") -> ?hidden_node;
 tag_to_atom("index_table") -> ?index_table;
 tag_to_atom("instr_data") -> ?instr_data;
 tag_to_atom("internal_ets") -> ?internal_ets;
+tag_to_atom("literals") -> ?literals;
 tag_to_atom("loaded_modules") -> ?loaded_modules;
 tag_to_atom("memory") -> ?memory;
 tag_to_atom("mod") -> ?mod;
@@ -2759,14 +2925,16 @@ tag_to_atom("scheduler") -> ?scheduler;
 tag_to_atom("timer") -> ?timer;
 tag_to_atom("visible_node") -> ?visible_node;
 tag_to_atom(UnknownTag) ->
-    io:format("WARNING: Found unexpected tag:~s~n",[UnknownTag]),
+    io:format("WARNING: Found unexpected tag:~ts~n",[UnknownTag]),
     list_to_atom(UnknownTag).
 
 %%%-----------------------------------------------------------------
 %%% Store last tag for use when truncated, and reason if aborted
 put_last_tag(?abort,Reason) ->
-    %% Don't overwrite the real last tag
-    put(truncated_reason,Reason);
+    %% Don't overwrite the real last tag, and make sure to return
+    %% the previous last tag.
+    put(truncated_reason,Reason),
+    get(last_tag);
 put_last_tag(Tag,Id) ->
     put(last_tag,{Tag,Id}).
 
@@ -2794,23 +2962,6 @@ to_value_list(Record) ->
     Values.
 
 %%%-----------------------------------------------------------------
-%%% Fold over List and report progress in percent.
-%%% Report is the text to be presented in the progress dialog.
-%%% Acc0 is the initial accumulator and will be passed to Fun as the
-%%% second arguement, i.e. Fun = fun(Item,Acc) -> NewAcc end.
-progress_foldl(Report,Fun,Acc0,List) ->
-    init_progress(Report, length(List)),
-    progress_foldl1(Fun,Acc0,List).
-
-progress_foldl1(Fun,Acc,[H|T]) ->
-    update_progress(),
-    progress_foldl1(Fun,Fun(H,Acc),T);
-progress_foldl1(_Fun,Acc,[]) ->
-    end_progress(),
-    Acc.
-
-
-%%%-----------------------------------------------------------------
 %%% Map over List and report progress in percent.
 %%% Report is the text to be presented in the progress dialog.
 %%% Distribute the load over a number of processes, and File is opened
diff --git a/lib/observer/src/etop_tr.erl b/lib/observer/src/etop_tr.erl
index 8e43f8bb35..1e48fefca4 100644
--- a/lib/observer/src/etop_tr.erl
+++ b/lib/observer/src/etop_tr.erl
@@ -89,14 +89,14 @@ handle_data(Last, {_, Pid, out, _, Time2} = G, Store) ->
              end,
              New;
          false ->
-             io:format("Erlang top got garbage ~p~n", [G]),
+             io:format("Erlang top got garbage ~tp~n", [G]),
              Last
     end;
 handle_data(_W, {drop, D}, _) ->  %% Error case we are missing data here!
     io:format("Erlang top dropped data ~p~n", [D]),
     [];
 handle_data(Last, G, _) ->
-    io:format("Erlang top got garbage ~p~n", [G]),
+    io:format("Erlang top got garbage ~tp~n", [G]),
     Last.
 
 elapsed({Me1, S1, Mi1}, {Me2, S2, Mi2}) ->
diff --git a/lib/observer/src/etop_txt.erl b/lib/observer/src/etop_txt.erl
index 183641119a..cd3ec62c13 100644
--- a/lib/observer/src/etop_txt.erl
+++ b/lib/observer/src/etop_txt.erl
@@ -48,7 +48,6 @@ do_update(Prev,Config) ->
     do_update(standard_io,Info,Prev,Config).
 
 do_update(Fd,Info,Prev,Config) ->
-    Encoding = encoding(Fd),
     {Cpu,NProcs,RQ,Clock} = loadinfo(Info,Prev),
     io:nl(Fd),
     writedoubleline(Fd),
@@ -72,7 +71,7 @@ do_update(Fd,Info,Prev,Config) ->
     io:nl(Fd),
     writepinfo_header(Fd),
     writesingleline(Fd),
-    writepinfo(Fd,Info#etop_info.procinfo,Encoding),
+    writepinfo(Fd,Info#etop_info.procinfo,modifier(Fd)),
     writedoubleline(Fd),
     io:nl(Fd),
     Info.
@@ -93,26 +92,27 @@ writepinfo(Fd,[#etop_proc_info{pid=Pid,
 			       cf=MFA,
 			       mq=MQ}
 	       |T],
-           Encoding) ->
-    io:fwrite(Fd,proc_format(Encoding),
-              [Pid,to_list(Name,Encoding),Time,Reds,Mem,MQ,
-               formatmfa(MFA,Encoding)]),
-    writepinfo(Fd,T,Encoding);
+           Modifier) ->
+    io:fwrite(Fd,proc_format(Modifier),
+              [Pid,to_string(Name,Modifier),Time,Reds,Mem,MQ,
+               to_string(MFA,Modifier)]),
+    writepinfo(Fd,T,Modifier);
 writepinfo(_Fd,[],_) ->
     ok.
 
+proc_format(Modifier) ->
+    "~-15w~-20"++Modifier++"s~8w~8w~8w~8w ~-20"++Modifier++"s~n".
 
-formatmfa({M, F, A},latin1) ->
-    io_lib:format("~w:~w/~w",[M, F, A]);
-formatmfa({M, F, A},_) ->
-    io_lib:format("~w:~tw/~w",[M, F, A]);
-formatmfa(Other,_) ->
-    %% E.g. when running hipe - the current_function for some
-    %% processes will be 'undefined'
-    io_lib:format("~w",[Other]).
+to_string({M,F,A},Modifier) ->
+    io_lib:format("~w:~"++Modifier++"w/~w",[M,F,A]);
+to_string(Other,Modifier) ->
+    io_lib:format("~"++Modifier++"w",[Other]).
 
-to_list(Name,_) when is_atom(Name) -> atom_to_list(Name);
-to_list({_M,_F,_A}=MFA,Encoding) -> formatmfa(MFA,Encoding).
+modifier(Device) ->
+    case encoding(Device) of
+        latin1 -> "";
+        _ -> "t"
+    end.
 
 encoding(Device) ->
     case io:getopts(Device) of
@@ -122,7 +122,3 @@ encoding(Device) ->
             latin1
     end.
 
-proc_format(latin1) ->
-    "~-15w~-20s~8w~8w~8w~8w ~-20s~n";
-proc_format(_) ->
-    "~-15w~-20ts~8w~8w~8w~8w ~-20ts~n".
diff --git a/lib/observer/src/multitrace.erl b/lib/observer/src/multitrace.erl
index a01eeec6ae..82aec05e0d 100644
--- a/lib/observer/src/multitrace.erl
+++ b/lib/observer/src/multitrace.erl
@@ -103,16 +103,16 @@ print_func(Out,{trace_ts,P,call,{M,F,A},C,Ts},N) ->
     io:format(Out,
 	      "~w: ~s~n"
 	      "Process   : ~w~n"
-	      "Call      : ~w:~w/~w~n"
-	      "Arguments : ~p~n"
-	      "Caller    : ~w~n~n",
+	      "Call      : ~w:~tw/~w~n"
+	      "Arguments : ~tp~n"
+	      "Caller    : ~tw~n~n",
 	      [N,ts(Ts),P,M,F,length(A),A,C]);
 print_func(Out,{trace_ts,P,return_from,{M,F,A},R,Ts},N) ->
     io:format(Out,
 	      "~w: ~s~n"
 	      "Process      : ~w~n"
-	      "Return from  : ~w:~w/~w~n"
-	      "Return value : ~p~n~n",
+	      "Return from  : ~w:~tw/~w~n"
+	      "Return value : ~tp~n~n",
 	      [N,ts(Ts),P,M,F,A,R]).
 
 
@@ -181,7 +181,7 @@ handle_schedule(Out,{trace_ts,P,out,Info,Ts},_TI,S) ->
 	      "out:~n"
 	      "Process  : ~w~n"
 	      "Time     : ~s~n"
-	      "Function : ~w~n~n",[P,ts(Ts),Info]),
+	      "Function : ~tw~n~n",[P,ts(Ts),Info]),
     case lists:keysearch(P,1,S) of
 	{value,{P,List}} ->
 	    lists:keyreplace(P,1,S,{P,[{out,Ts}|List]});
@@ -193,7 +193,7 @@ handle_schedule(Out,{trace_ts,P,in,Info,Ts},_TI,S) ->
 	      "in:~n"
 	      "Process  : ~w~n"
 	      "Time     : ~s~n"
-	      "Function : ~w~n~n",[P,ts(Ts),Info]),
+	      "Function : ~tw~n~n",[P,ts(Ts),Info]),
     case lists:keysearch(P,1,S) of
 	{value,{P,List}} ->
 	    lists:keyreplace(P,1,S,{P,[{in,Ts}|List]});
diff --git a/lib/observer/src/observer.app.src b/lib/observer/src/observer.app.src
index 3a5bd172e7..f682e3dc7b 100644
--- a/lib/observer/src/observer.app.src
+++ b/lib/observer/src/observer.app.src
@@ -65,7 +65,7 @@
     {registered, []},
     {applications, [kernel, stdlib]},
     {env, []},
-    {runtime_dependencies, ["wx-1.2","stdlib-2.0","runtime_tools-1.8.14",
+    {runtime_dependencies, ["wx-1.2","stdlib-3.4","runtime_tools-1.8.14",
 			    "kernel-3.0","inets-5.10","et-1.5",
 			    "erts-7.0"]}]}.
 
diff --git a/lib/observer/src/observer_alloc_wx.erl b/lib/observer/src/observer_alloc_wx.erl
index ef425f0874..7f4b3dd484 100644
--- a/lib/observer/src/observer_alloc_wx.erl
+++ b/lib/observer/src/observer_alloc_wx.erl
@@ -80,7 +80,7 @@ init([Notebook, Parent, Config]) ->
 		     }
 	}
     catch _:Err ->
-	    io:format("~p crashed ~p: ~p~n",[?MODULE, Err, erlang:get_stacktrace()]),
+	    io:format("~p crashed ~tp: ~tp~n",[?MODULE, Err, erlang:get_stacktrace()]),
 	    {stop, Err}
     end.
 
@@ -183,7 +183,7 @@ handle_info({'EXIT', Old, _}, State = #state{appmon=Old}) ->
     {noreply, State#state{active=false, appmon=undefined}};
 
 handle_info(_Event, State) ->
-    %% io:format("~p:~p: ~p~n",[?MODULE,?LINE,_Event]),
+    %% io:format("~p:~p: ~tp~n",[?MODULE,?LINE,_Event]),
     {noreply, State}.
 
 terminate(_Event, #state{}) ->
diff --git a/lib/observer/src/observer_app_wx.erl b/lib/observer/src/observer_app_wx.erl
index bc4f1fe117..2a481966da 100644
--- a/lib/observer/src/observer_app_wx.erl
+++ b/lib/observer/src/observer_app_wx.erl
@@ -320,7 +320,7 @@ handle_info({'EXIT', _, noconnection}, State) ->
 handle_info({'EXIT', _, normal}, State) ->
     {noreply, State};
 handle_info(_Event, State) ->
-    %% io:format("~p:~p: ~p~n",[?MODULE,?LINE,_Event]),
+    %% io:format("~p:~p: ~tp~n",[?MODULE,?LINE,_Event]),
     {noreply, State}.
 
 %%%%%%%%%%
diff --git a/lib/observer/src/observer_html_lib.erl b/lib/observer/src/observer_html_lib.erl
index 1f1306c370..68381bcc7b 100644
--- a/lib/observer/src/observer_html_lib.erl
+++ b/lib/observer/src/observer_html_lib.erl
@@ -142,13 +142,13 @@ dict_table(Tab,{Key0,Value0}, Even) ->
     tr(color(Even), [td("VALIGN=center",pre(Key)), td(pre(Value))]).
 
 proc_state(Tab,{Key0,Value0}, Even) ->
-    Key = lists:flatten(io_lib:format("~s",[Key0])),
+    Key = lists:flatten(io_lib:format("~ts",[Key0])),
     Value = all_or_expand(Tab,Value0),
     tr(color(Even), [td("VALIGN=center",Key), td(pre(Value))]).
 
 all_or_expand(Tab,Term) ->
-    Preview = io_lib:format("~P",[Term,8]),
-    Check = io_lib:format("~P",[Term,100]),
+    Preview = io_lib:format("~tP",[Term,8]),
+    Check = io_lib:format("~tP",[Term,100]),
     Exp = Preview=/=Check,
     all_or_expand(Tab,Term,Preview,Exp).
 all_or_expand(_Tab,Term,Str,false)
@@ -166,13 +166,8 @@ all_or_expand(Tab,Term,Preview,true)
 	  "Click to expand above term")];
 all_or_expand(Tab,Bin,_PreviewStr,_Expand)
   when is_binary(Bin) ->
-    Size = byte_size(Bin),
-    PrevSize = min(Size, 10) * 8,
-    <<Preview:PrevSize, _/binary>> = Bin,
-    Hash = erlang:phash2(Bin),
-    Key = {Preview, Size, Hash},
-    ets:insert(Tab,{Key,Bin}),
-    Term = io_lib:format("~p", [['#OBSBin',Preview,Size,Hash]]),
+    OBSBin = observer_lib:make_obsbin(Bin,Tab),
+    Term = io_lib:format("~tp", [OBSBin]),
     href_proc_port(lists:flatten(Term), true).
 
 color(true) -> io_lib:format("BGCOLOR=\"#~2.16.0B~2.16.0B~2.16.0B\"", tuple_to_list(?BG_EVEN));
@@ -283,24 +278,24 @@ href_proc_port("['#CDVPort'"++T,Acc,LTB) ->
     %% Port written by crashdump_viewer:parse_term(...)
     {Port0,Rest} = split($],T),
     PortStr=
-	case string:tokens(Port0,",.|") of
+	case string:lexemes(Port0,",.|") of
 	    [X,Y] ->
 		Port = "#Port&lt;"++X++"."++Y++"&gt;",
 		href(Port,Port);
 	Ns ->
-		"#Port&lt;" ++ string:join(Ns,".") ++"...&gt;"
+		"#Port&lt;" ++ lists:join($.,Ns) ++"...&gt;"
     end,
     href_proc_port(Rest,[PortStr|Acc],LTB);
 href_proc_port("['#CDVPid'"++T,Acc,LTB) ->
     %% Pid written by crashdump_viewer:parse_term(...)
     {Pid0,Rest} = split($],T),
     PidStr =
-	case string:tokens(Pid0,",.|") of
+	case string:lexemes(Pid0,",.|") of
 	    [X,Y,Z] ->
 		Pid = "&lt;"++X++"."++Y++"."++Z++"&gt;",
 		href(Pid,Pid);
 	    Ns ->
-		"&lt;" ++ string:join(Ns,".") ++ "...&gt;"
+		"&lt;" ++ lists:join($.,Ns) ++ "...&gt;"
 	end,
     href_proc_port(Rest,[PidStr|Acc],LTB);
 href_proc_port("'#CDVIncompleteHeap'"++T,Acc,LTB)->
@@ -337,28 +332,37 @@ href_proc_port([],Acc,_) ->
 href_proc_bin(From, T, Acc, LTB) ->
     {OffsetSizePos,Rest} = split($],T),
     BinStr =
-	case string:tokens(OffsetSizePos,",.| \n") of
+	case string:lexemes(OffsetSizePos,",.| \n") of
 	    [Offset,SizeStr,Pos] when From =:= cdv ->
-		Id = {list_to_integer(Offset),10,list_to_integer(Pos)},
-		{ok,PreviewBin} = crashdump_viewer:expand_binary(Id),
-		PreviewStr = preview_string(list_to_integer(SizeStr), PreviewBin),
-		if LTB ->
-			href("TARGET=\"expanded\"",
-			     ["#Binary?offset="++Offset++
-				  "&size="++SizeStr++
-				  "&pos="++Pos],
-			     PreviewStr);
-		   true ->
-			PreviewStr
-		end;
-	    [Preview,SizeStr,Md5] when From =:= obs ->
+                Size = list_to_integer(SizeStr),
+                PreviewSize = min(Size,10),
+		Id = {list_to_integer(Offset),PreviewSize,list_to_integer(Pos)},
+                case crashdump_viewer:expand_binary(Id) of
+                    {ok, '#CDVTruncatedBinary'} ->
+                          lists:flatten(
+                            "<FONT COLOR=\"#FF0000\">"
+                            "&lt;&lt;...(Truncated Binary)&gt;&gt;"
+                            "</FONT>");
+                    {ok, PreviewBin} ->
+                        PreviewStr = preview_string(Size, PreviewBin),
+                        if LTB ->
+                                href("TARGET=\"expanded\"",
+                                     ["#Binary?offset="++Offset++
+                                          "&size="++SizeStr++
+                                          "&pos="++Pos],
+                                     PreviewStr);
+                           true ->
+                                PreviewStr
+                        end
+                end;
+	    [PreviewIntStr,SizeStr,Md5] when From =:= obs ->
 		Size = list_to_integer(SizeStr),
-		PrevSize =  min(Size, 10) * 8,
-		PreviewStr = preview_string(Size,
-					    <<(list_to_integer(Preview)):PrevSize>>),
+                PreviewInt = list_to_integer(PreviewIntStr),
+		PrevSize = (trunc(math:log2(PreviewInt)/8)+1)*8,
+		PreviewStr = preview_string(Size,<<PreviewInt:PrevSize>>),
 		if LTB ->
 			href("TARGET=\"expanded\"",
-			     ["#OBSBinary?key1="++Preview++
+			     ["#OBSBinary?key1="++PreviewIntStr++
 				  "&key2="++SizeStr++
 				  "&key3="++Md5],
 			     PreviewStr);
@@ -372,14 +376,14 @@ href_proc_bin(From, T, Acc, LTB) ->
 
 preview_string(Size, PreviewBin) when Size > 10 ->
     ["&lt;&lt;",
-     remove_lgt(io_lib:format("~p",[PreviewBin])),
+     remove_lgt(io_lib:format("~tp",[PreviewBin])),
      "...(",
      observer_lib:to_str({bytes,Size}),
      ")",
      "&gt;&gt"];
 preview_string(_, PreviewBin) ->
     ["&lt;&lt;",
-     remove_lgt(io_lib:format("~p",[PreviewBin])),
+     remove_lgt(io_lib:format("~tp",[PreviewBin])),
      "&gt;&gt"].
 
 remove_lgt(Deep) ->
diff --git a/lib/observer/src/observer_lib.erl b/lib/observer/src/observer_lib.erl
index 8b6036f52a..e5ffe61d25 100644
--- a/lib/observer/src/observer_lib.erl
+++ b/lib/observer/src/observer_lib.erl
@@ -21,7 +21,7 @@
 
 -export([get_wx_parent/1,
 	 display_info_dialog/2, display_yes_no_dialog/1,
-	 display_progress_dialog/2, destroy_progress_dialog/0,
+	 display_progress_dialog/3, destroy_progress_dialog/0,
 	 wait_for_progress/0, report_progress/1,
 	 user_term/3, user_term_multiline/3,
 	 interval_dialog/4, start_timer/1, start_timer/2, stop_timer/1, timer_config/1,
@@ -30,7 +30,8 @@
 	 create_attrs/0,
 	 set_listctrl_col_size/2,
 	 create_status_bar/1,
-	 html_window/1, html_window/2
+	 html_window/1, html_window/2,
+         make_obsbin/2
 	]).
 
 -include_lib("wx/include/wx.hrl").
@@ -39,6 +40,7 @@
 -define(SINGLE_LINE_STYLE, ?wxBORDER_NONE bor ?wxTE_READONLY bor ?wxTE_RICH2).
 -define(MULTI_LINE_STYLE, ?SINGLE_LINE_STYLE bor ?wxTE_MULTILINE).
 
+-define(pulse_timeout,50).
 
 get_wx_parent(Window) ->
     Parent = wxWindow:getParent(Window),
@@ -300,7 +302,7 @@ to_str(Float) when is_float(Float) ->
 to_str({trunc, Float}) when is_float(Float) ->
     float_to_list(Float, [{decimals,0}]);
 to_str(Term) ->
-    io_lib:format("~w", [Term]).
+    io_lib:format("~tw", [Term]).
 
 create_menus([], _MenuBar, _Type) -> ok;
 create_menus(Menus, MenuBar, Type) ->
@@ -476,7 +478,7 @@ create_box(Parent, Data) ->
 				 link_entry(Panel,Value);
 			     _ ->
 				 Value = to_str(Value0),
-                                 case string:sub_word(lists:sublist(Value, 80),1,$\n) of
+                                 case string:nth_lexeme(lists:sublist(Value, 80),1, [$\n]) of
                                      Value ->
                                          %% Short string, no newlines - show all
 					 wxStaticText:new(Panel, ?wxID_ANY, Value);
@@ -520,7 +522,7 @@ link_entry2(Panel,{Target,Str},Cursor) ->
     TC.
 
 to_link(RegName={Name, Node}) when is_atom(Name), is_atom(Node) ->
-    Str = io_lib:format("{~p,~p}", [Name, Node]),
+    Str = io_lib:format("{~tp,~p}", [Name, Node]),
     {RegName, Str};
 to_link(TI = {_Target, _Identifier}) ->
     TI;
@@ -641,11 +643,11 @@ parse_string(Str) ->
 	Tokens = case erl_scan:string(Str, 1, [text]) of
 		     {ok, Ts, _} -> Ts;
 		     {error, {_SLine, SMod, SError}, _} ->
-			 throw(io_lib:format("~s", [SMod:format_error(SError)]))
+			 throw(io_lib:format("~ts", [SMod:format_error(SError)]))
 		 end,
 	case lib:extended_parse_term(Tokens) of
 	    {error, {_PLine, PMod, PError}} ->
-		throw(io_lib:format("~s", [PMod:format_error(PError)]));
+		throw(io_lib:format("~ts", [PMod:format_error(PError)]));
 	    Res -> Res
 	end
     catch
@@ -687,11 +689,11 @@ create_status_bar(Panel) ->
 %%%-----------------------------------------------------------------
 %%% Progress dialog
 -define(progress_handler,cdv_progress_handler).
-display_progress_dialog(Title,Str) ->
+display_progress_dialog(Parent,Title,Str) ->
     Caller = self(),
     Env = wx:get_env(),
     spawn_link(fun() ->
-		       progress_handler(Caller,Env,Title,Str)
+		       progress_handler(Caller,Env,Parent,Title,Str)
 	       end),
     ok.
 
@@ -715,31 +717,38 @@ report_progress(Progress) ->
 	    ok
     end.
 
-progress_handler(Caller,Env,Title,Str) ->
+progress_handler(Caller,Env,Parent,Title,Str) ->
     register(?progress_handler,self()),
     wx:set_env(Env),
-    PD = progress_dialog(Env,Title,Str),
-    try progress_loop(Title,PD,Caller)
+    PD = progress_dialog(Env,Parent,Title,Str),
+    try progress_loop(Title,PD,Caller,infinity)
     catch closed -> normal end.
 
-progress_loop(Title,PD,Caller) ->
+progress_loop(Title,PD,Caller,Pulse) ->
     receive
 	{progress,{ok,done}} -> % to make wait_for_progress/0 return
 	    Caller ! continue,
-	    progress_loop(Title,PD,Caller);
+	    progress_loop(Title,PD,Caller,Pulse);
+        {progress,{ok,start_pulse}} ->
+            update_progress_pulse(PD),
+            progress_loop(Title,PD,Caller,?pulse_timeout);
+        {progress,{ok,stop_pulse}} ->
+            progress_loop(Title,PD,Caller,infinity);
 	{progress,{ok,Percent}} when is_integer(Percent) ->
 	    update_progress(PD,Percent),
-	    progress_loop(Title,PD,Caller);
+	    progress_loop(Title,PD,Caller,Pulse);
 	{progress,{ok,Msg}} ->
 	    update_progress_text(PD,Msg),
-	    progress_loop(Title,PD,Caller);
+	    progress_loop(Title,PD,Caller,Pulse);
 	{progress,{error, Reason}} ->
+            {Dialog,_,_} = PD,
+            Parent = wxWindow:getParent(Dialog),
 	    finish_progress(PD),
 	    FailMsg =
 		if is_list(Reason) -> Reason;
 		   true -> file:format_error(Reason)
 		end,
-	    display_info_dialog(PD,"Crashdump Viewer Error",FailMsg),
+	    display_info_dialog(Parent,"Crashdump Viewer Error",FailMsg),
 	    Caller ! error,
 	    unregister(?progress_handler),
 	    unlink(Caller);
@@ -747,25 +756,77 @@ progress_loop(Title,PD,Caller) ->
 	    finish_progress(PD),
 	    unregister(?progress_handler),
 	    unlink(Caller)
+    after Pulse ->
+            update_progress_pulse(PD),
+            progress_loop(Title,PD,Caller,?pulse_timeout)
     end.
 
-progress_dialog(_Env,Title,Str) ->
-    PD = wxProgressDialog:new(Title,Str,
-			      [{maximum,101},
-			       {style,
-				?wxPD_APP_MODAL bor
-				    ?wxPD_SMOOTH bor
-				    ?wxPD_AUTO_HIDE}]),
-    wxProgressDialog:setMinSize(PD,{200,-1}),
-    PD.
+progress_dialog(_Env,Parent,Title,Str) ->
+    progress_dialog_new(Parent,Title,Str).
 
 update_progress(PD,Value) ->
-    try wxProgressDialog:update(PD,Value)
+    try progress_dialog_update(PD,Value)
     catch _:_ -> throw(closed) %% Port or window have died
     end.
 update_progress_text(PD,Text) ->
-    try wxProgressDialog:update(PD,0,[{newmsg,Text}])
+    try progress_dialog_update(PD,Text)
+    catch _:_ -> throw(closed) %% Port or window have died
+    end.
+update_progress_pulse(PD) ->
+    try progress_dialog_pulse(PD)
     catch _:_ -> throw(closed) %% Port or window have died
     end.
 finish_progress(PD) ->
-    wxProgressDialog:destroy(PD).
+    try progress_dialog_update(PD,100)
+    catch _:_ -> ok
+    after progress_dialog_destroy(PD)
+    end.
+
+progress_dialog_new(Parent,Title,Str) ->
+    Dialog = wxDialog:new(Parent, ?wxID_ANY, Title,
+                          [{style,?wxDEFAULT_DIALOG_STYLE}]),
+    Panel = wxPanel:new(Dialog),
+    Sizer = wxBoxSizer:new(?wxVERTICAL),
+    Message = wxStaticText:new(Panel, 1, Str),
+    Gauge = wxGauge:new(Panel, 2, 100, [{size, {170, -1}},
+                                        {style, ?wxGA_HORIZONTAL}]),
+    SizerFlags = ?wxEXPAND bor ?wxLEFT bor ?wxRIGHT bor ?wxTOP,
+    wxSizer:add(Sizer, Message, [{flag,SizerFlags},{border,15}]),
+    wxSizer:add(Sizer, Gauge, [{flag, SizerFlags bor ?wxBOTTOM},{border,15}]),
+    wxPanel:setSizer(Panel, Sizer),
+    wxSizer:setSizeHints(Sizer, Dialog),
+    wxDialog:show(Dialog),
+    {Dialog,Message,Gauge}.
+
+progress_dialog_update({_,_,Gauge},Value) when is_integer(Value) ->
+    wxGauge:setValue(Gauge,Value);
+progress_dialog_update({_,Message,Gauge},Text) when is_list(Text) ->
+    wxGauge:setValue(Gauge,0),
+    wxStaticText:setLabel(Message,Text).
+progress_dialog_pulse({_,_,Gauge}) ->
+    wxGauge:pulse(Gauge).
+progress_dialog_destroy({Dialog,_,_}) ->
+    wxDialog:destroy(Dialog).
+
+make_obsbin(Bin,Tab) ->
+    Size = byte_size(Bin),
+    Preview =
+        try
+            %% The binary might be a unicode string, in which case we
+            %% don't want to split it in the middle of a grapheme
+            %% cluster - thus trying string:length and slice.
+            PL1 = min(string:length(Bin), 10),
+            PB1 = string:slice(Bin,0,PL1),
+            PS1 = byte_size(PB1) * 8,
+            <<P1:PS1>> = PB1,
+            P1
+        catch _:_ ->
+                %% Probably not a string, so just split anywhere
+                PS2 = min(Size, 10) * 8,
+                <<P2:PS2, _/binary>> = Bin,
+                P2
+        end,
+    Hash = erlang:phash2(Bin),
+    Key = {Preview, Size, Hash},
+    ets:insert(Tab, {Key,Bin}),
+    ['#OBSBin',Preview,Size,Hash].
diff --git a/lib/observer/src/observer_perf_wx.erl b/lib/observer/src/observer_perf_wx.erl
index fcc51310c8..5adfadb16e 100644
--- a/lib/observer/src/observer_perf_wx.erl
+++ b/lib/observer/src/observer_perf_wx.erl
@@ -87,7 +87,7 @@ init([Notebook, Parent, Config]) ->
 		       },
 	{Panel, State0}
     catch _:Err ->
-	    io:format("~p crashed ~p: ~p~n",[?MODULE, Err, erlang:get_stacktrace()]),
+	    io:format("~p crashed ~tp: ~tp~n",[?MODULE, Err, erlang:get_stacktrace()]),
 	    {stop, Err}
     end.
 
@@ -235,7 +235,7 @@ handle_info({'EXIT', Old, _}, State = #state{appmon=Old}) ->
     {noreply, State#state{active=false, appmon=undefined}};
 
 handle_info(_Event, State) ->
-    %% io:format("~p:~p: ~p~n",[?MODULE,?LINE,_Event]),
+    %% io:format("~p:~p: ~tp~n",[?MODULE,?LINE,_Event]),
     {noreply, State}.
 
 %%%%%%%%%%
diff --git a/lib/observer/src/observer_port_wx.erl b/lib/observer/src/observer_port_wx.erl
index 8339267659..5908e99e36 100644
--- a/lib/observer/src/observer_port_wx.erl
+++ b/lib/observer/src/observer_port_wx.erl
@@ -338,7 +338,7 @@ handle_info({info, {port_info_not_available,NodeName}},
     {noreply, State};
 
 handle_info({error, Error}, #state{panel=Panel} = State) ->
-    Str = io_lib:format("ERROR: ~s~n",[Error]),
+    Str = io_lib:format("ERROR: ~ts~n",[Error]),
     observer_lib:display_info_dialog(Panel, Str),
     {noreply, State};
 
diff --git a/lib/observer/src/observer_pro_wx.erl b/lib/observer/src/observer_pro_wx.erl
index 3083297f31..2e5fe0bc1a 100644
--- a/lib/observer/src/observer_pro_wx.erl
+++ b/lib/observer/src/observer_pro_wx.erl
@@ -217,7 +217,7 @@ call(Holder, What) ->
 	    erlang:demonitor(Ref),
 	    Res
     after 2000 ->
-	    io:format("Hanging call ~p~n",[What]),
+	    io:format("Hanging call ~tp~n",[What]),
 	    ""
     end.
 
@@ -256,7 +256,7 @@ handle_info(not_active, #state{timer=Timer0}=State) ->
     {noreply, State#state{timer=Timer}};
 
 handle_info(Info, State) ->
-    io:format("~p:~p, Unexpected info: ~p~n", [?MODULE, ?LINE, Info]),
+    io:format("~p:~p, Unexpected info: ~tp~n", [?MODULE, ?LINE, Info]),
     {noreply, State}.
 
 terminate(_Reason, #state{holder=Holder}) ->
@@ -273,11 +273,11 @@ handle_call(get_config, _, #state{holder=Holder, timer=Timer}=State) ->
     {reply, Conf#{acc=>Accum}, State};
 
 handle_call(Msg, _From, State) ->
-    io:format("~p:~p: Unhandled call ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p:~p: Unhandled call ~tp~n",[?MODULE, ?LINE, Msg]),
     {reply, ok, State}.
 
 handle_cast(Msg, State) ->
-    io:format("~p:~p: Unhandled cast ~p~n", [?MODULE, ?LINE, Msg]),
+    io:format("~p:~p: Unhandled cast ~tp~n", [?MODULE, ?LINE, Msg]),
     {noreply, State}.
 
 %%%%%%%%%%%%%%%%%%%%LOOP%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -401,7 +401,7 @@ handle_event(#wx{event=#wxList{type=command_list_item_activated}},
     {noreply, State#state{procinfo_menu_pids=Opened2}};
 
 handle_event(Event, State) ->
-    io:format("~p:~p: handle event ~p\n", [?MODULE, ?LINE, Event]),
+    io:format("~p:~p: handle event ~tp\n", [?MODULE, ?LINE, Event]),
     {noreply, State}.
 
 
@@ -559,7 +559,7 @@ table_holder(#holder{info=Info, attrs=Attrs,
             %% Node crashed will be noticed soon..
             table_holder(S0#holder{backend_pid=undefined});
 	_What ->
-            %% io:format("~p: Table holder got ~p~n",[?MODULE, _What]),
+            %% io:format("~p: Table holder got ~tp~n",[?MODULE, _What]),
 	    table_holder(S0)
     end.
 
diff --git a/lib/observer/src/observer_procinfo.erl b/lib/observer/src/observer_procinfo.erl
index 10decd8b62..4ce38e439d 100644
--- a/lib/observer/src/observer_procinfo.erl
+++ b/lib/observer/src/observer_procinfo.erl
@@ -56,7 +56,7 @@ init([Pid, ParentFrame, Parent]) ->
 	Table = ets:new(observer_expand,[set,public]),
 	Title=case observer_wx:try_rpc(node(Pid), erlang, process_info, [Pid, registered_name]) of
 		  [] -> io_lib:format("~p",[Pid]);
-		  {registered_name, Registered} -> io_lib:format("~p (~p)",[Registered, Pid]);
+		  {registered_name, Registered} -> io_lib:format("~tp (~p)",[Registered, Pid]);
 		  undefined -> throw(process_undefined)
 	      end,
 	Frame=wxFrame:new(ParentFrame, ?wxID_ANY, [atom_to_list(node(Pid)), $:, Title],
@@ -151,7 +151,7 @@ handle_event(#wx{event=#wxHtmlLink{linkInfo=#wxHtmlLinkInfo{href=Href}}},
 	    Opened =
 		case lists:keyfind(Id,1,Opened0) of
 		    false ->
-			Win = cdv_detail_wx:start_link(Id,[],Frame,Callback),
+			Win = cdv_detail_wx:start_link(Id,[],Frame,Callback,obs),
 			[{Id,Win}|Opened0];
 		    {_,Win} ->
 			wxFrame:raise(Win),
@@ -171,7 +171,7 @@ handle_info({get_debug_info, From}, State = #state{notebook=Notebook}) ->
     From ! {procinfo_debug, Notebook},
     {noreply, State};
 handle_info(_Info, State) ->
-    %% io:format("~p: ~p, Handle info: ~p~n", [?MODULE, ?LINE, Info]),
+    %% io:format("~p: ~p, Handle info: ~tp~n", [?MODULE, ?LINE, Info]),
     {noreply, State}.
 
 handle_call(Call, From, _State) ->
@@ -263,7 +263,7 @@ init_stack_page(Parent, Pid) ->
 					      wxListCtrl:setItem(LCtrl, Row, 0, observer_lib:to_str({M,F,A})),
 					      FileLine = case Info of
 							     [{file,File},{line,Line}] ->
-								 io_lib:format("~s:~w", [File,Line]);
+								 io_lib:format("~ts:~w", [File,Line]);
 							     _ ->
 								 []
 							 end,
@@ -454,7 +454,8 @@ local_pid_str(Pid) ->
 
 global_pid_node_pref(Pid) ->
     %% Global PID node prefix : X of <X.Y.Z>
-    string:strip(string:sub_word(pid_to_list(Pid),1,$.),left,$<).
+    [NodePrefix|_] = string:lexemes(pid_to_list(Pid),"<."),
+    NodePrefix.
 
 io_get_data(Pid) ->
     Pid ! {self(), get_data_and_close},
@@ -487,5 +488,5 @@ io_request({put_chars, Encoding, Module, Function, Args}, State) ->
 	    {error, {error, Function}, State}
     end;
 io_request(_Req, State) ->
-    %% io:format("~p: Unknown req: ~p ~n",[?LINE, _Req]),
+    %% io:format("~p: Unknown req: ~tp ~n",[?LINE, _Req]),
     {ok, {error, request}, State}.
diff --git a/lib/observer/src/observer_sys_wx.erl b/lib/observer/src/observer_sys_wx.erl
index 2e1af3ada9..8c2ffd77b4 100644
--- a/lib/observer/src/observer_sys_wx.erl
+++ b/lib/observer/src/observer_sys_wx.erl
@@ -199,7 +199,7 @@ handle_info(not_active, #sys_wx_state{timer = Timer} = State) ->
     {noreply, State#sys_wx_state{timer = observer_lib:stop_timer(Timer)}};
 
 handle_info(Info, State) ->
-    io:format("~p:~p: Unhandled info: ~p~n", [?MODULE, ?LINE, Info]),
+    io:format("~p:~p: Unhandled info: ~tp~n", [?MODULE, ?LINE, Info]),
     {noreply, State}.
 
 terminate(_Reason, _State) ->
@@ -212,11 +212,11 @@ handle_call(get_config, _, #sys_wx_state{timer=Timer}=State) ->
     {reply, observer_lib:timer_config(Timer), State};
 
 handle_call(Msg, _From, State) ->
-    io:format("~p~p: Unhandled Call ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p~p: Unhandled Call ~tp~n",[?MODULE, ?LINE, Msg]),
     {reply, ok, State}.
 
 handle_cast(Msg, State) ->
-    io:format("~p~p: Unhandled cast ~p~n",[?MODULE, ?LINE, Msg]),
+    io:format("~p~p: Unhandled cast ~tp~n",[?MODULE, ?LINE, Msg]),
     {noreply, State}.
 
 handle_event(#wx{id = ?ID_REFRESH, event = #wxCommand{type = command_menu_selected}},
@@ -235,5 +235,5 @@ handle_event(#wx{id = ?ID_REFRESH_INTERVAL,
     {noreply, State#sys_wx_state{timer=Timer}};
 
 handle_event(Event, State) ->
-    io:format("~p:~p: Unhandled event ~p\n", [?MODULE,?LINE,Event]),
+    io:format("~p:~p: Unhandled event ~tp\n", [?MODULE,?LINE,Event]),
     {noreply, State}.
diff --git a/lib/observer/src/observer_trace_wx.erl b/lib/observer/src/observer_trace_wx.erl
index b960c61ff0..2c3b46a3a1 100644
--- a/lib/observer/src/observer_trace_wx.erl
+++ b/lib/observer/src/observer_trace_wx.erl
@@ -683,7 +683,7 @@ handle_event(#wx{id=?REMOVE_NODES}, #state{n_view=Nview, nodes=Ns0} = State) ->
     {noreply, State#state{nodes = Ns}};
 
 handle_event(#wx{id=ID, event = What}, State) ->
-    io:format("~p:~p: Unhandled event: ~p, ~p ~n", [?MODULE, ?LINE, ID, What]),
+    io:format("~p:~p: Unhandled event: ~p, ~tp ~n", [?MODULE, ?LINE, ID, What]),
     {noreply, State}.
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -729,7 +729,7 @@ handle_info({update_ms, NewMs}, State) ->
     {noreply, State#state{match_specs=NewMs}};
 
 handle_info(Any, State) ->
-    io:format("~p~p: received unexpected message: ~p\n", [?MODULE, self(), Any]),
+    io:format("~p~p: received unexpected message: ~tp\n", [?MODULE, self(), Any]),
     {noreply, State}.
 
 terminate(_Reason, #state{nodes=_Nodes}) ->
@@ -1046,33 +1046,33 @@ format_trace(Trace, Size, TS0={_,_,MS}) ->
 	    case element(4, Trace) of
 		{dbg,ok} -> "";
 		Message ->
-		    io_lib:format("~s (~100p) << ~100p~n", [TS,From,Message])
+		    io_lib:format("~s (~100p) << ~100tp~n", [TS,From,Message])
 	    end;
 	'send' ->
 	    Message = element(4, Trace),
 	    To = element(5, Trace),
-	    io_lib:format("~s (~100p) ~100p ! ~100p~n", [TS,From,To,Message]);
+	    io_lib:format("~s (~100p) ~100p ! ~100tp~n", [TS,From,To,Message]);
 	call ->
 	    case element(4, Trace) of
 		MFA when Size == 5 ->
 		    Message = element(5, Trace),
-		    io_lib:format("~s (~100p) call ~s (~100p) ~n", [TS,From,ffunc(MFA),Message]);
+		    io_lib:format("~s (~100p) call ~ts (~100tp) ~n", [TS,From,ffunc(MFA),Message]);
 		MFA ->
-		    io_lib:format("~s (~100p) call ~s~n", [TS,From,ffunc(MFA)])
+		    io_lib:format("~s (~100p) call ~ts~n", [TS,From,ffunc(MFA)])
 	    end;
 	return_from ->
 	    MFA = element(4, Trace),
 	    Ret = element(5, Trace),
-	    io_lib:format("~s (~100p) returned from ~s -> ~100p~n", [TS,From,ffunc(MFA),Ret]);
+	    io_lib:format("~s (~100p) returned from ~ts -> ~100tp~n", [TS,From,ffunc(MFA),Ret]);
 	return_to ->
 	    MFA = element(4, Trace),
-	    io_lib:format("~s (~100p) returning to ~s~n", [TS,From,ffunc(MFA)]);
+	    io_lib:format("~s (~100p) returning to ~ts~n", [TS,From,ffunc(MFA)]);
 	spawn when Size == 5 ->
 	    Pid = element(4, Trace),
 	    MFA = element(5, Trace),
-	    io_lib:format("~s (~100p) spawn ~100p as ~s~n", [TS,From,Pid,ffunc(MFA)]);
+	    io_lib:format("~s (~100p) spawn ~100p as ~ts~n", [TS,From,Pid,ffunc(MFA)]);
 	Op ->
-	    io_lib:format("~s (~100p) ~100p ~s~n", [TS,From,Op,ftup(Trace,4,Size)])
+	    io_lib:format("~s (~100p) ~100p ~ts~n", [TS,From,Op,ftup(Trace,4,Size)])
     end.
 
 %%% These f* functions returns non-flat strings
@@ -1080,24 +1080,24 @@ format_trace(Trace, Size, TS0={_,_,MS}) ->
 %% {M,F,[A1, A2, ..., AN]} -> "M:F(A1, A2, ..., AN)"
 %% {M,F,A}                 -> "M:F/A"
 ffunc({M,F,Argl}) when is_list(Argl) ->
-    io_lib:format("~100p:~100p(~s)", [M, F, fargs(Argl)]);
+    io_lib:format("~100p:~100tp(~ts)", [M, F, fargs(Argl)]);
 ffunc({M,F,Arity}) ->
-    io_lib:format("~100p:~100p/~100p", [M,F,Arity]);
-ffunc(X) -> io_lib:format("~100p", [X]).
+    io_lib:format("~100p:~100tp/~100p", [M,F,Arity]);
+ffunc(X) -> io_lib:format("~100tp", [X]).
 
 %% Integer           -> "Integer"
 %% [A1, A2, ..., AN] -> "A1, A2, ..., AN"
 fargs(Arity) when is_integer(Arity) -> integer_to_list(Arity);
 fargs([]) -> [];
-fargs([A]) -> io_lib:format("~100p", [A]);  %% last arg
-fargs([A|Args]) -> [io_lib:format("~100p,", [A]) | fargs(Args)];
-fargs(A) -> io_lib:format("~100p", [A]). % last or only arg
+fargs([A]) -> io_lib:format("~100tp", [A]);  %% last arg
+fargs([A|Args]) -> [io_lib:format("~100tp,", [A]) | fargs(Args)];
+fargs(A) -> io_lib:format("~100tp", [A]). % last or only arg
 
 %% {A_1, A_2, ..., A_N} -> "A_Index A_Index+1 ... A_Size"
 ftup(Trace, Index, Index) ->
-    io_lib:format("~100p", [element(Index, Trace)]);
+    io_lib:format("~100tp", [element(Index, Trace)]);
 ftup(Trace, Index, Size) ->
-    [io_lib:format("~100p ", [element(Index, Trace)])
+    [io_lib:format("~100tp ", [element(Index, Trace)])
      | ftup(Trace, Index+1, Size)].
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -1125,18 +1125,19 @@ get_config(#state{def_proc_flags = ProcFlags,
 
 write_file(Frame, Filename, Config) ->
     Str =
-	["%%%\n%%% This file is generated by Observer\n",
+	["%%% ",epp:encoding_to_string(utf8), "\n"
+         "%%%\n%%% This file is generated by Observer\n",
 	 "%%%\n%%% DO NOT EDIT!\n%%%\n",
-	 [io_lib:format("~p.~n",[MSTerm]) ||
+	 [io_lib:format("~tp.~n",[MSTerm]) ||
              MSTerm <- proplists:get_value(match_specs, Config)],
 	 io_lib:format("~p.~n",[lists:keyfind(procflags, 1, Config)]),
 	 io_lib:format("~p.~n",[lists:keyfind(portflags, 1, Config)]),
-	 io_lib:format("~p.~n",[lists:keyfind(output, 1, Config)]),
-	 [io_lib:format("~p.~n",[ModuleTerm]) ||
+	 io_lib:format("~tp.~n",[lists:keyfind(output, 1, Config)]),
+	 [io_lib:format("~tp.~n",[ModuleTerm]) ||
              ModuleTerm <- proplists:get_value(trace_p, Config)]
 	],
 
-    case file:write_file(Filename, list_to_binary(Str)) of
+    case file:write_file(Filename, unicode:characters_to_binary(Str)) of
 	ok ->
 	    success;
 	{error, Reason} ->
@@ -1200,7 +1201,7 @@ make_ms(MS) ->
     make_ms(Name,Term,FunStr).
 
 make_ms(Name, Term, FunStr) ->
-    #match_spec{name=Name, term=Term, str=io_lib:format("~w", Term), func = FunStr}.
+    #match_spec{name=Name, term=Term, str=io_lib:format("~tw", [Term]), func = FunStr}.
 
 parse_tp({tp, Mod, FAs}, State) ->
     Patterns = [#tpattern{m=Mod,fa={F,A}, ms=make_ms(List)} ||
diff --git a/lib/observer/src/observer_traceoptions_wx.erl b/lib/observer/src/observer_traceoptions_wx.erl
index 285c298c4b..fbcf6d7fe9 100644
--- a/lib/observer/src/observer_traceoptions_wx.erl
+++ b/lib/observer/src/observer_traceoptions_wx.erl
@@ -487,7 +487,7 @@ edit_ms(TextCtrl, Label0, Parent) ->
 		    _ -> Label0
 		end,
 	#match_spec{name=Label, term=MatchSpec,
-		    str=io_lib:format("~w",[MatchSpec]),
+		    str=io_lib:format("~tw",[MatchSpec]),
 		    func=Str}
     catch
 	throw:cancel ->
@@ -511,18 +511,18 @@ ms_from_string(Str) ->
 	Tokens = case erl_scan:string(Str) of
 		     {ok, Ts, _} -> Ts;
 		     {error, {SLine, SMod, SError}, _} ->
-			 throw(io_lib:format("~w: ~s", [SLine,SMod:format_error(SError)]))
+			 throw(io_lib:format("~w: ~ts", [SLine,SMod:format_error(SError)]))
 		 end,
 	Exprs  = case erl_parse:parse_exprs(Tokens) of
 		     {ok, T} -> T;
 		     {error, {PLine, PMod, PError}} ->
-			 throw(io_lib:format("~w: ~s", [PLine,PMod:format_error(PError)]))
+			 throw(io_lib:format("~w: ~ts", [PLine,PMod:format_error(PError)]))
 		 end,
 	Term = case Exprs of
 		   [{'fun', _, {clauses, Clauses}}|_] ->
 		       case ms_transform:transform_from_shell(dbg,Clauses,orddict:new()) of
 			   {error, [{_,[{MSLine,Mod,MSInfo}]}],_} ->
-			       throw(io_lib:format("~w: ~p", [MSLine,Mod:format_error(MSInfo)]));
+			       throw(io_lib:format("~w: ~tp", [MSLine,Mod:format_error(MSInfo)]));
 			   {error, _} ->
 			       throw("Could not convert fun() to match spec");
 			   Ms ->
@@ -536,7 +536,7 @@ ms_from_string(Str) ->
 	    {error, List} -> throw([[Error, $\n] || {_, Error} <- List])
 	end
     catch error:_Reason ->
-	    %% io:format("Bad term: ~s~n ~p in ~p~n", [Str, _Reason, erlang:get_stacktrace()]),
+	    %% io:format("Bad term: ~ts~n ~tp in ~tp~n", [Str, _Reason, erlang:get_stacktrace()]),
 	    throw("Invalid term")
     end.
 
@@ -556,7 +556,8 @@ filter_listbox_data(Input, Data, ListBox) ->
     filter_listbox_data(Input, Data, ListBox, true).
 
 filter_listbox_data(Input, Data, ListBox, AddClientData) ->
-    FilteredData = [X || X = {Str, _} <- Data, re:run(Str, Input) =/= nomatch],
+    FilteredData = [X || X = {Str, _} <- Data,
+                         re:run(Str, Input, [unicode]) =/= nomatch],
     wxListBox:clear(ListBox),
     wxListBox:appendStrings(ListBox, [Str || {Str,_} <- FilteredData]),
     AddClientData andalso
@@ -618,7 +619,7 @@ create_styled_txtctrl(Parent) ->
 
 keyWords() ->
     L = ["after","begin","case","try","cond","catch","andalso","orelse",
-	 "end","fun","if","let","of","query","receive","when","bnot","not",
+	 "end","fun","if","let","of","receive","when","bnot","not",
 	 "div","rem","band","and","bor","bxor","bsl","bsr","or","xor"],
     lists:flatten([K ++ " " || K <- L] ++ [0]).
 
@@ -648,9 +649,9 @@ parse_function_names(Choices) ->
 parse_function_names([], Acc) ->
     lists:reverse(Acc);
 parse_function_names([{H, Term}|T], Acc) ->
-    IsFun = re:run(H, ".*-fun-\\d*?-"),
-    IsLc = re:run(H, ".*-lc\\$\\^\\d*?/\\d*?-\\d*?-"),
-    IsLbc = re:run(H, ".*-lbc\\$\\^\\d*?/\\d*?-\\d*?-"),
+    IsFun = re:run(H, ".*-fun-\\d*?-", [unicode,ucp]),
+    IsLc = re:run(H, ".*-lc\\$\\^\\d*?/\\d*?-\\d*?-", [unicode,ucp]),
+    IsLbc = re:run(H, ".*-lbc\\$\\^\\d*?/\\d*?-\\d*?-", [unicode,ucp]),
     Parsed =
 	if IsFun =/= nomatch -> "Fun: " ++ H;
 	   IsLc =/= nomatch -> "List comprehension: " ++ H;
diff --git a/lib/observer/src/observer_tv_table.erl b/lib/observer/src/observer_tv_table.erl
index 789e060cfb..d6dcee2cda 100644
--- a/lib/observer/src/observer_tv_table.erl
+++ b/lib/observer/src/observer_tv_table.erl
@@ -258,7 +258,7 @@ handle_event(#wx{event=#wxList{type=command_list_item_selected, itemIndex=Index}
 	     State = #state{pid=Pid, grid=Grid, status=StatusBar}) ->
     N = wxListCtrl:getItemCount(Grid),
     Str = get_row(Pid, Index, all),
-    wxStatusBar:setStatusText(StatusBar, io_lib:format("Objects: ~w: ~s",[N, Str])),
+    wxStatusBar:setStatusText(StatusBar, io_lib:format("Objects: ~w: ~ts",[N, Str])),
     {noreply, State#state{selected=Index}};
 
 handle_event(#wx{event=#wxList{type=command_list_item_activated, itemIndex=Index}},
@@ -278,7 +278,7 @@ handle_event(#wx{id=?ID_DELETE},
 	     State = #state{grid=Grid, pid=Pid, status=StatusBar, selected=Index}) ->
     Str = get_row(Pid, Index, all),
     Pid ! {delete, Index},
-    wxStatusBar:setStatusText(StatusBar, io_lib:format("Deleted object: ~s",[Str])),
+    wxStatusBar:setStatusText(StatusBar, io_lib:format("Deleted object: ~ts",[Str])),
     wxListCtrl:setItemState(Grid, Index, 0, ?wxLIST_STATE_FOCUSED),
     {noreply, State#state{selected=undefined}};
 
@@ -338,7 +338,7 @@ handle_event(#wx{id=?SEARCH_ENTRY, event=#wxCommand{type=command_text_enter,cmdS
     Pid ! {mark_search_hit, false},
     case search(Pid, Str, Pos, Dir, Case) of
 	false ->
-	    wxStatusBar:setStatusText(SB, io_lib:format("Not found (regexp): ~s",[Str])),
+	    wxStatusBar:setStatusText(SB, io_lib:format("Not found (regexp): ~ts",[Str])),
 	    Pid ! {mark_search_hit, Find#find.start},
 	    wxListCtrl:refreshItem(Grid, Find#find.start),
 	    {noreply, State#state{search=Search#search{find=Find#find{found=false}}}};
@@ -372,7 +372,7 @@ handle_event(#wx{id=?SEARCH_ENTRY, event=#wxCommand{cmdString=Str}},
 	Pid ! {mark_search_hit, false},
 	case search(Pid, Str, Cont#find.start, Dir, Case) of
 	    false ->
-		wxStatusBar:setStatusText(SB, io_lib:format("Not found (regexp): ~s",[Str])),
+		wxStatusBar:setStatusText(SB, io_lib:format("Not found (regexp): ~ts",[Str])),
 		{noreply, State};
 	    Row ->
 		wxListCtrl:ensureVisible(Grid, Row),
@@ -395,19 +395,19 @@ handle_event(#wx{id=?ID_REFRESH_INTERVAL},
     {noreply, State#state{timer=Timer}};
 
 handle_event(_Event, State) ->
-    %io:format("~p:~p, handle event ~p\n", [?MODULE, ?LINE, Event]),
+    %io:format("~p:~p, handle event ~tp\n", [?MODULE, ?LINE, Event]),
     {noreply, State}.
 
 handle_sync_event(_Event, _Obj, _State) ->
-    %io:format("~p:~p, handle sync_event ~p\n", [?MODULE, ?LINE, Event]),
+    %io:format("~p:~p, handle sync_event ~tp\n", [?MODULE, ?LINE, Event]),
     ok.
 
 handle_call(_Event, _From, State) ->
-    %io:format("~p:~p, handle call (~p) ~p\n", [?MODULE, ?LINE, From, Event]),
+    %io:format("~p:~p, handle call (~p) ~tp\n", [?MODULE, ?LINE, From, Event]),
     {noreply, State}.
 
 handle_cast(_Event, State) ->
-    %io:format("~p:~p, handle cast ~p\n", [?MODULE, ?LINE, Event]),
+    %io:format("~p:~p, handle cast ~tp\n", [?MODULE, ?LINE, Event]),
     {noreply, State}.
 
 handle_info({no_rows, N}, State = #state{grid=Grid, status=StatusBar}) ->
@@ -433,7 +433,7 @@ handle_info(refresh_interval, State = #state{pid=Pid}) ->
 handle_info({error, Error}, State = #state{frame=Frame}) ->
     ErrorStr =
 	try io_lib:format("~ts", [Error]), Error
-	catch _:_ -> io_lib:format("~p", [Error])
+	catch _:_ -> io_lib:format("~tp", [Error])
 	end,
     Dlg = wxMessageDialog:new(Frame, ErrorStr),
     wxMessageDialog:showModal(Dlg),
@@ -441,7 +441,7 @@ handle_info({error, Error}, State = #state{frame=Frame}) ->
     {noreply, State};
 
 handle_info(_Event, State) ->
-    %% io:format("~p:~p, handle info ~p\n", [?MODULE, ?LINE, _Event]),
+    %% io:format("~p:~p, handle info ~tp\n", [?MODULE, ?LINE, _Event]),
     {noreply, State}.
 
 terminate(_Event, #state{pid=Pid, attrs=Attrs}) ->
@@ -554,7 +554,7 @@ table_holder(S0 = #holder{parent=Parent, pid=Pid, table=Table}) ->
 	    edit_row(Row, Term, S0),
 	    table_holder(S0);
 	What ->
-	    io:format("Table holder got ~p~n",[What]),
+	    io:format("Table holder got ~tp~n",[What]),
 	    Parent ! {refresh, 0, S0#holder.n-1},
 	    table_holder(S0)
     end.
@@ -641,7 +641,7 @@ search([Str, Row, Dir0, CaseSens],
 	      true -> 1;
 	      false -> -1
 	  end,
-    Res = case re:compile(Str, Opt) of
+    Res = case re:compile(Str, [unicode|Opt]) of
 	      {ok, Re} -> re_search(Row, Dir, N, Re, Table);
 	      {error, _} -> false
 	  end,
@@ -665,7 +665,7 @@ get_row(From, Row, Col, Table) ->
 	[Object|_] when Col =:= all ->
 	    From ! {self(), format(Object)};
 	[Object|_] when Col =:= all_multiline ->
-	    From ! {self(), io_lib:format("~p", [Object])};
+	    From ! {self(), io_lib:format("~tp", [Object])};
         [Object|_] when Col =:= term ->
 	    From ! {self(), Object};
 	[Object|_] when tuple_size(Object) >= Col ->
@@ -801,7 +801,7 @@ format(Bin) when is_binary(Bin), byte_size(Bin) > 100 ->
     io_lib:format("<<#Bin:~w>>", [byte_size(Bin)]);
 format(Bin) when is_binary(Bin) ->
     try
-	true = printable_list(unicode:characters_to_list(Bin)),
+	true = io_lib:printable_list(unicode:characters_to_list(Bin)),
 	io_lib:format("<<\"~ts\">>", [Bin])
     catch _:_ ->
 	    io_lib:format("~w", [Bin])
@@ -809,7 +809,7 @@ format(Bin) when is_binary(Bin) ->
 format(Float) when is_float(Float) ->
     io_lib:format("~.3g", [Float]);
 format(Term) ->
-    io_lib:format("~w", [Term]).
+    io_lib:format("~tw", [Term]).
 
 format_tuple(Tuple, I, Max) when I < Max ->
     [format(element(I, Tuple)), $,|format_tuple(Tuple, I+1, Max)];
@@ -820,7 +820,7 @@ format_tuple(_Tuple, 1, 0) ->
 
 format_list([]) -> "[]";
 format_list(List) ->
-    case printable_list(List) of
+    case io_lib:printable_list(List) of
 	true ->  io_lib:format("\"~ts\"", [map_printable_list(List)]);
 	false -> [$[ | make_list(List)]
     end.
@@ -849,26 +849,3 @@ map_printable_list([$\e|Cs]) ->
 map_printable_list([]) -> [];
 map_printable_list([C|Cs]) ->
     [C|map_printable_list(Cs)].
-
-%% printable_list([Char]) -> bool()
-%%  Return true if CharList is a list of printable characters, else
-%%  false.
-
-printable_list([C|Cs]) when is_integer(C), C >= $ , C =< 255 ->
-    printable_list(Cs);
-printable_list([$\n|Cs]) ->
-    printable_list(Cs);
-printable_list([$\r|Cs]) ->
-    printable_list(Cs);
-printable_list([$\t|Cs]) ->
-    printable_list(Cs);
-printable_list([$\v|Cs]) ->
-    printable_list(Cs);
-printable_list([$\b|Cs]) ->
-    printable_list(Cs);
-printable_list([$\f|Cs]) ->
-    printable_list(Cs);
-printable_list([$\e|Cs]) ->
-    printable_list(Cs);
-printable_list([]) -> true;
-printable_list(_Other) -> false.	     %Everything else is false
diff --git a/lib/observer/src/observer_tv_wx.erl b/lib/observer/src/observer_tv_wx.erl
index 9564bdfa1c..e16f3cab6b 100644
--- a/lib/observer/src/observer_tv_wx.erl
+++ b/lib/observer/src/observer_tv_wx.erl
@@ -252,7 +252,7 @@ handle_info(not_active, State = #state{timer = Timer0}) ->
     {noreply, State#state{timer=Timer}};
 
 handle_info({error, Error}, #state{panel=Panel,opt=Opt}=State) ->
-    Str = io_lib:format("ERROR: ~s~n",[Error]),
+    Str = io_lib:format("ERROR: ~ts~n",[Error]),
     observer_lib:display_info_dialog(Panel,Str),
     case Opt#opt.type of
         mnesia -> wxMenuBar:check(observer_wx:get_menubar(), ?ID_ETS, true);
diff --git a/lib/observer/src/observer_wx.erl b/lib/observer/src/observer_wx.erl
index 9b9e80f479..453e3bdc2d 100644
--- a/lib/observer/src/observer_wx.erl
+++ b/lib/observer/src/observer_wx.erl
@@ -459,7 +459,7 @@ handle_info({'EXIT', Pid, Reason}, State) ->
 	normal ->
 	    {noreply, State};
 	_ ->
-	    io:format("Observer: Child (~s) crashed exiting:  ~p ~p~n",
+	    io:format("Observer: Child (~s) crashed exiting:  ~p ~tp~n",
 		      [pid2panel(Pid, State), Pid, Reason]),
 	    {stop, normal, State}
     end;
@@ -504,7 +504,7 @@ save_config(Panels) ->
     File = config_file(),
     case filelib:ensure_dir(File) of
         ok ->
-            Format = [io_lib:format("~p.~n",[Conf]) || Conf <- Configs],
+            Format = [io_lib:format("~tp.~n",[Conf]) || Conf <- Configs],
             _ = file:write_file(File, Format);
         _ ->
             ignore
@@ -732,7 +732,7 @@ get_nodes() ->
     {Nodes, lists:reverse(Menues)}.
 
 epmd_nodes(Names) ->
-    [_, Host] = string:tokens(atom_to_list(node()),"@"),
+    [_, Host] = string:lexemes(atom_to_list(node()),"@"),
     [list_to_atom(Name ++ [$@|Host]) || {Name, _} <- Names].
 
 update_node_list(State = #state{menubar=MenuBar}) ->
diff --git a/lib/observer/src/ttb.erl b/lib/observer/src/ttb.erl
index 09b0bc6710..29a572d7fe 100644
--- a/lib/observer/src/ttb.erl
+++ b/lib/observer/src/ttb.erl
@@ -100,7 +100,7 @@ do_tracer(Clients,PI,Traci) ->
 				 {ok, H} = inet:gethostname(),
 				 H;
 			     _ ->
-				 [_,H] = string:tokens(atom_to_list(N),"@"),
+				 [_,H] = string:lexemes(atom_to_list(N),"@"),
 				 H
 			 end,
 		  case catch dbg:tracer(N,port,dbg:trace_port(ip,IpPortSpec)) of
@@ -635,7 +635,7 @@ stop(Opts) when is_list(Opts) ->
             ok;
         {_, {stopped, _}} ->
             %% Printout moved out of the ttb loop to avoid occasional deadlock
-            io:format("Stored logs in ~s~n", [element(2, Result)]);
+            io:format("Stored logs in ~ts~n", [element(2, Result)]);
         {_, _} ->
             ok
     end,
@@ -792,7 +792,7 @@ do_stop({FetchOrFormat, UserDir}, Sender, NodeInfo, SessionInfo) ->
     write_config(?last_config, all),
     Localhost = host(node()),
     Dir = get_fetch_dir(UserDir, proplists:get_value(logfile, SessionInfo)),
-    file:make_dir(Dir),
+    ok = filelib:ensure_dir(filename:join(Dir,"*")),
     %% The nodes are traversed twice here because
     %% the meta tracing in observer_backend must be
     %% stopped before dbg is stopped, and dbg must
@@ -900,21 +900,29 @@ fetch_report(Localhost, Dir, Node, MetaFile) ->
 
 fetch(Localhost,Dir,Node,MetaFile) ->
     case (host(Node) == Localhost) orelse is_local(MetaFile) of
-    true -> % same host, just move the files
+        true -> % same host, just move the files
 	    Files = get_filenames(Node,MetaFile),
 	    lists:foreach(
-            fun(File0) ->
-                Dest = filename:join(Dir,filename:basename(File0)),
-                file:rename(File0, Dest)
-            end,
-        Files);
+              fun(File0) ->
+                      Dest = filename:join(Dir,filename:basename(File0)),
+                      file:rename(File0, Dest)
+              end,
+              Files);
 	false ->
 	    {ok, LSock} = gen_tcp:listen(0, [binary,{packet,2},{active,false}]),
 	    {ok,Port} = inet:port(LSock),
-	    rpc:cast(Node,observer_backend,ttb_fetch,
-		     [MetaFile,{Port,Localhost}]),
+            Enc = file:native_name_encoding(),
+            Args =
+                case rpc:call(Node,erlang,function_exported,
+                              [observer_backend,ttb_fetch,3]) of
+                    true ->
+                        [MetaFile,{Port,Localhost},Enc];
+                    false ->
+                        [MetaFile,{Port,Localhost}]
+                end,
+            rpc:cast(Node,observer_backend,ttb_fetch,Args),
 	    {ok, Sock} = gen_tcp:accept(LSock),
-	    receive_files(Dir,Sock,undefined),
+	    receive_files(Dir,Sock,undefined,Enc),
 	    ok = gen_tcp:close(LSock),
 	    ok = gen_tcp:close(Sock)
     end.
@@ -929,25 +937,48 @@ get_filenames(_N, {local,F,_}) ->
 get_filenames(N, F) ->
     rpc:call(N, observer_backend,ttb_get_filenames,[F]).
 
-receive_files(Dir,Sock,Fd) ->
+receive_files(Dir,Sock,Fd,Enc) ->
     case gen_tcp:recv(Sock, 0) of
 	{ok, <<0,Bin/binary>>} ->
 	    file:write(Fd,Bin),
-	    receive_files(Dir,Sock,Fd);
-	{ok, <<1,Bin/binary>>} ->
-	    File0 = binary_to_list(Bin),
+	    receive_files(Dir,Sock,Fd,Enc);
+	{ok, <<Code,Bin/binary>>} when Code==1; Code==2; Code==3 ->
+            File0 = decode_filename(Code,Bin,Enc),
 	    File = filename:join(Dir,File0),
 	    {ok,Fd1} = file:open(File,[raw,write]),
-	    receive_files(Dir,Sock,Fd1);
+	    receive_files(Dir,Sock,Fd1,Enc);
 	{error, closed} ->
 	    ok = file:close(Fd)
     end.    
 
+decode_filename(1,Bin,_Enc) ->
+    %% Old version of observer_backend - filename encoded with
+    %% list_to_binary
+    binary_to_list(Bin);
+decode_filename(2,Bin,Enc) ->
+    %% Successfully encoded filename with correct encoding
+    unicode:characters_to_list(Bin,Enc);
+decode_filename(3,Bin,latin1) ->
+    %% Filename encoded with faulty encoding. This has to be utf8
+    %% remote and latin1 here, and the filename actually containing
+    %% characters outside the latin1 range. So making an escaped
+    %% variant of the filename and warning about it.
+    File0 = unicode:characters_to_list(Bin,utf8),
+    File = [ case X of
+                     High when High > 255 ->
+                         ["\\\\x{",erlang:integer_to_list(X, 16),$}];
+                     Low ->
+                         Low
+                 end || X <- File0 ],
+    io:format("Warning: fetching file with faulty filename encoding ~ts~n"
+              "Will be written as ~ts~n",
+              [File0,File]),
+    File.
+
 host(Node) ->
-    [_name,Host] = string:tokens(atom_to_list(Node),"@"),
+    [_name,Host] = string:lexemes(atom_to_list(Node),"@"),
     Host.
 
-
 wait_for_fetch([]) ->
     ok;
 wait_for_fetch(Nodes) ->
@@ -1033,7 +1064,7 @@ collect_files(Dirs) ->
     lists:map(fun(Dir) ->
                       MetaFiles = filelib:wildcard(filename:join(Dir,"*.ti")),
                       lists:map(fun(M) ->
-                                        Sub = string:left(M,length(M)-3),
+                                        Sub = filename:rootname(M,".ti"),
                                         case filelib:is_file(Sub) of
                                             true -> Sub;
                                             false -> Sub++".*.wrp"
@@ -1087,7 +1118,7 @@ read_traci(File) ->
 	{ok,B} -> 
 	    interpret_binary(B,dict:new(),[]);
 	_ -> 
-	    io:format("Warning: no meta data file: ~s~n",[MetaFile]),
+	    io:format("Warning: no meta data file: ~ts~n",[MetaFile]),
 	    {dict:new(),[]}
     end.
 
@@ -1303,7 +1334,7 @@ get_term(B) ->
     end.
 
 display_warning(Item,Warning) ->
-    io:format("Warning: {~w,~w}~n",[Warning,Item]).
+    io:format("Warning: {~tw,~tw}~n",[Warning,Item]).
 
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
diff --git a/lib/observer/src/ttb_et.erl b/lib/observer/src/ttb_et.erl
index 95e8e9aa07..1b828eebc0 100644
--- a/lib/observer/src/ttb_et.erl
+++ b/lib/observer/src/ttb_et.erl
@@ -137,13 +137,13 @@ processes(E0) ->
     E = label(E0),
     {{FromProc,FromNode},{ToProc,ToNode}} = 
 	get_actors(E#event.from,E#event.to),
-    {true,E#event{from = io_lib:format("~w~n~w",[FromProc,FromNode]),
-		  to = io_lib:format("~w~n~w",[ToProc,ToNode])}}.
+    {true,E#event{from = io_lib:format("~tw~n~w",[FromProc,FromNode]),
+		  to = io_lib:format("~tw~n~w",[ToProc,ToNode])}}.
 
 
 mods_and_procs(E) ->
     ActorFun = fun({M,_F,_A},{Proc,Node}) -> 
-		       io_lib:format("~w~n~w~n~w",[M,Proc,Node])
+		       io_lib:format("~w~n~tw~n~w",[M,Proc,Node])
 	       end,
     calltrace_filter(E,ActorFun).
 
@@ -155,13 +155,13 @@ modules(E) ->
 
 funcs_and_procs(E) ->
     ActorFun = fun({M,F,A},{Proc,Node}) -> 
-		       io_lib:format("~s~n~w~n~w",[mfa(M,F,A),Proc,Node])
+		       io_lib:format("~ts~n~tw~n~w",[mfa(M,F,A),Proc,Node])
 	       end,
     calltrace_filter(E,ActorFun).
     
 functions(E) ->
     ActorFun = fun({M,F,A},{_Proc,Node}) -> 
-		       io_lib:format("~s~n~w",[mfa(M,F,A),Node])
+		       io_lib:format("~ts~n~w",[mfa(M,F,A),Node])
 	       end,
     calltrace_filter(E,ActorFun).
     
@@ -221,7 +221,7 @@ label(Event=#event{label=L,contents=C}) ->
 	false -> Event
     end.
 label(L,{M,F,A}) -> label(L,M,F,A);
-label(L,Other) -> io_lib:format("~w ~w",[L,Other]).
+label(L,Other) -> io_lib:format("~w ~tw",[L,Other]).
 label(call,M,F,A) -> "call " ++ mfa(M,F,A);
 label(return_from,M,F,A) -> "return_from " ++ mfa(M,F,A);
 label(return_to,M,F,A) -> "return_to " ++ mfa(M,F,A);
diff --git a/lib/observer/test/Makefile b/lib/observer/test/Makefile
index 6100af5e17..a44e54fc52 100644
--- a/lib/observer/test/Makefile
+++ b/lib/observer/test/Makefile
@@ -27,7 +27,8 @@ MODULES =  \
 	ttb_SUITE \
 	client \
 	server \
-	crashdump_helper
+	crashdump_helper \
+	crashdump_helper_unicode
 
 ERL_FILES= $(MODULES:%=%.erl)
 
@@ -46,7 +47,7 @@ RELSYSDIR = $(RELEASE_PATH)/observer_test
 # FLAGS
 # ----------------------------------------------------
 ERL_MAKE_FLAGS +=
-ERL_COMPILE_FLAGS +=
+ERL_COMPILE_FLAGS += +warnings_as_errors +nowarn_export_all
 
 EBIN = .
 
diff --git a/lib/observer/test/crashdump_helper.erl b/lib/observer/test/crashdump_helper.erl
index f37d9057cb..41041682c2 100644
--- a/lib/observer/test/crashdump_helper.erl
+++ b/lib/observer/test/crashdump_helper.erl
@@ -19,7 +19,9 @@
 %%
 
 -module(crashdump_helper).
--export([n1_proc/2,remote_proc/2]).
+-export([n1_proc/2,remote_proc/2,
+         dump_maps/0,create_maps/0,
+         create_binaries/0]).
 -compile(r18).
 -include_lib("common_test/include/ct.hrl").
 
@@ -60,6 +62,7 @@ n1_proc(Creator,_N2,Pid2,Port2,_L) ->
     put(ref,Ref),
     put(pid,Pid),
     put(bin,Bin),
+    put(bins,create_binaries()),
     put(sub_bin,SubBin),
     put(bignum,83974938738373873),
     put(neg_bignum,-38748762783736367),
@@ -92,3 +95,38 @@ remote_proc(P1,Creator) ->
 		  Creator ! {self(),done},
 		  receive after infinity -> ok end
 	  end).
+
+create_binaries() ->
+    Sizes = lists:seq(60, 70) ++ lists:seq(120, 140),
+    [begin
+         <<H:16/unit:8>> = erlang:md5(<<Size:32>>),
+         Data = ((H bsl (8*150)) div (H+7919)),
+         <<Data:Size/unit:8>>
+     end || Size <- Sizes].
+
+%%%
+%%% Test dumping of maps. Dumping of maps only from OTP 20.2.
+%%%
+
+dump_maps() ->
+    Parent = self(),
+    F = fun() ->
+                register(aaaaaaaa_maps, self()),
+                put(maps, create_maps()),
+                Parent ! {self(),done},
+                receive _ -> ok end
+        end,
+    Pid = spawn_link(F),
+    receive
+        {Pid,done} ->
+            {ok,Pid}
+    end.
+
+create_maps() ->
+    Map0 = maps:from_list([{I,[I,I+1]} || I <- lists:seq(1, 40)]),
+    Map1 = maps:from_list([{I,{a,[I,I*I],{}}} || I <- lists:seq(1, 100)]),
+    Map2 = maps:from_list([{{I},(I*I) bsl 24} || I <- lists:seq(1, 10000)]),
+    Map3 = lists:foldl(fun(I, A) ->
+                               A#{I=>I*I}
+                       end, Map2, lists:seq(-10, 0)),
+    #{a=>Map0,b=>Map1,c=>Map2,d=>Map3,e=>#{}}.
diff --git a/lib/observer/test/crashdump_helper_unicode.erl b/lib/observer/test/crashdump_helper_unicode.erl
new file mode 100644
index 0000000000..60c3d20315
--- /dev/null
+++ b/lib/observer/test/crashdump_helper_unicode.erl
@@ -0,0 +1,22 @@
+-module(crashdump_helper_unicode).
+-behaviour(gen_server).
+-export([start/0, init/1, handle_call/3, handle_cast/2]).
+-record(state, {s,a,b,lb}).
+
+start() ->
+    gen_server:start({local, 'unicode_reg_name_αβ'}, ?MODULE, [], []).
+
+init([]) ->
+    process_flag(trap_exit, true),
+    ets:new('tab_αβ',[set,named_table]),
+    Bin = <<"bin αβ"/utf8>>,
+    LongBin = <<"long bin αβ - a utf8 binary which can be expanded αβ"/utf8>>,
+    {ok, #state{s = "unicode_string_αβ",
+                a = 'unicode_atom_αβ',
+                b = Bin,
+                lb = LongBin}}.
+
+handle_call(_Info, _From, State) ->
+    {reply, ok, State}.
+handle_cast(_Info, State) ->
+    {noreply, State}.
diff --git a/lib/observer/test/crashdump_viewer_SUITE.erl b/lib/observer/test/crashdump_viewer_SUITE.erl
index 1fd94ffb3c..86a60e15f4 100644
--- a/lib/observer/test/crashdump_viewer_SUITE.erl
+++ b/lib/observer/test/crashdump_viewer_SUITE.erl
@@ -76,7 +76,7 @@ end_per_testcase(Case, Config) ->
     end,
     ok.
 
-suite() -> [{ct_hooks,[ts_install_cth]}].
+suite() -> [].
 
 all() -> 
     [start_stop,
@@ -364,6 +364,13 @@ special(File,Procs) ->
 		crashdump_viewer:expand_binary({SOffset,SSize,SPos}),
 	    io:format("  expand binary ok",[]),
 
+            Binaries = crashdump_helper:create_binaries(),
+            verify_binaries(Binaries, proplists:get_value(bins,Dict)),
+	    io:format("  binaries ok",[]),
+
+	    #proc{last_calls=LastCalls} = ProcDetails,
+            true = length(LastCalls) =< 4,
+
 	    ['#CDVPid',X1,Y1,Z1] = proplists:get_value(ext_pid,Dict),
 	    ChannelStr1 = integer_to_list(X1),
 	    ExtPid =
@@ -413,25 +420,133 @@ special(File,Procs) ->
 			old_attrib=undefined,
 			old_comp_info=undefined}=Mod2,
 	    ok;
-	%% ".strangemodname" ->
-	%%     {ok,Mods,[]} = crashdump_viewer:loaded_modules(),
-	%%     lookat_all_mods(Mods),
-	%%     ok;
-	%% ".sort" ->
-	%%     %% sort ports, atoms and modules ????
-	%%     ok;
-	%% ".trunc" ->
-	%%     %% ????
-	%%     ok;
-        ".trunc.bytes" ->
+	".trunc_bin1" ->
+            %% This is 'full_dist' truncated after the first
+            %% "=binary:"
+            %% i.e. no binary exist in the dump
+	    [#proc{pid=Pid0}|_Rest] = lists:keysort(#proc.name,Procs),
+	    Pid = pid_to_list(Pid0),
+	    {ok,ProcDetails=#proc{},[]} = crashdump_viewer:proc_details(Pid),
+	    io:format("  process details ok",[]),
+
+	    #proc{dict=Dict} = ProcDetails,
+
+	    '#CDVNonexistingBinary' = proplists:get_value(bin,Dict),
+	    '#CDVNonexistingBinary' = proplists:get_value(sub_bin,Dict),
+
+	    io:format("  nonexisting binaries ok",[]),
+            ok;
+	".trunc_bin2" ->
+            %% This is 'full_dist' truncated after the first
+            %% "=binary:Addr\n
+            %%  Size"
+            %% i.e. binaries are truncated
+	    [#proc{pid=Pid0}|_Rest] = lists:keysort(#proc.name,Procs),
+	    Pid = pid_to_list(Pid0),
+	    {ok,ProcDetails=#proc{},[]} = crashdump_viewer:proc_details(Pid),
+	    io:format("  process details ok",[]),
+
+	    #proc{dict=Dict} = ProcDetails,
+
+	    ['#CDVBin',Offset,Size,Pos] = proplists:get_value(bin,Dict),
+            {ok,'#CDVTruncatedBinary'} =
+		crashdump_viewer:expand_binary({Offset,Size,Pos}),
+	    ['#CDVBin',SOffset,SSize,SPos] = proplists:get_value(sub_bin,Dict),
+            {ok,'#CDVTruncatedBinary'} =
+		crashdump_viewer:expand_binary({SOffset,SSize,SPos}),
+
+	    io:format("  expand truncated binary ok",[]),
+            ok;
+	".trunc_bin3" ->
+            %% This is 'full_dist' truncated after the first
+            %% "=binary:Addr\n
+            %%  Size:"
+            %% i.e. same as 'trunc_bin2', except the colon exists also
+	    [#proc{pid=Pid0}|_Rest] = lists:keysort(#proc.name,Procs),
+	    Pid = pid_to_list(Pid0),
+	    {ok,ProcDetails=#proc{},[]} = crashdump_viewer:proc_details(Pid),
+	    io:format("  process details ok",[]),
+
+	    #proc{dict=Dict} = ProcDetails,
+
+	    ['#CDVBin',Offset,Size,Pos] = proplists:get_value(bin,Dict),
+            {ok,'#CDVTruncatedBinary'} =
+		crashdump_viewer:expand_binary({Offset,Size,Pos}),
+	    ['#CDVBin',SOffset,SSize,SPos] = proplists:get_value(sub_bin,Dict),
+            {ok,'#CDVTruncatedBinary'} =
+		crashdump_viewer:expand_binary({SOffset,SSize,SPos}),
+
+	    io:format("  expand truncated binary ok",[]),
+            ok;
+	".trunc_bin4" ->
+            %% This is 'full_dist' truncated after the first
+            %% "=binary:Addr\n
+            %%  Size:BinaryMissinOneByte"
+            %% i.e. the full binary is truncated, but the sub binary is complete
+	    [#proc{pid=Pid0}|_Rest] = lists:keysort(#proc.name,Procs),
+	    Pid = pid_to_list(Pid0),
+	    {ok,ProcDetails=#proc{},[]} = crashdump_viewer:proc_details(Pid),
+	    io:format("  process details ok",[]),
+
+	    #proc{dict=Dict} = ProcDetails,
+
+	    ['#CDVBin',Offset,Size,Pos] = proplists:get_value(bin,Dict),
+            {ok,'#CDVTruncatedBinary'} =
+		crashdump_viewer:expand_binary({Offset,Size,Pos}),
+	    io:format("  expand truncated binary ok",[]),
+	    ['#CDVBin',SOffset,SSize,SPos] = proplists:get_value(sub_bin,Dict),
+            {ok,<<_:SSize/binary>>} =
+		crashdump_viewer:expand_binary({SOffset,SSize,SPos}),
+	    io:format("  expand complete sub binary ok",[]),
+
+            ok;
+        ".trunc_bytes" ->
             {ok,_,[TW]} = crashdump_viewer:general_info(),
             {match,_} = re:run(TW,"CRASH DUMP SIZE LIMIT REACHED"),
+	    io:format("  size limit information ok",[]),
+            ok;
+        ".unicode" ->
+            #proc{pid=Pid0} =
+                lists:keyfind("'unicode_reg_name_αβ'",#proc.name,Procs),
+            Pid = pid_to_list(Pid0),
+	    {ok,#proc{},[]} = crashdump_viewer:proc_details(Pid),
+            io:format("  unicode registered name ok",[]),
+
+	    {ok,[#ets_table{id="'tab_αβ'",name="'tab_αβ'"}],[]} =
+                crashdump_viewer:ets_tables(Pid),
+            io:format("  unicode table name ok",[]),
+
+            ok;
+        ".maps" ->
+	    %% I registered a process as aaaaaaaa_maps in the map dump
+	    %% to make sure it will be the first in the list when sorted
+	    %% on names.
+	    [#proc{pid=Pid0,name=Name}|_Rest] = lists:keysort(#proc.name,Procs),
+            "aaaaaaaa_maps" = Name,
+	    Pid = pid_to_list(Pid0),
+	    {ok,ProcDetails=#proc{},[]} = crashdump_viewer:proc_details(Pid),
+	    io:format("  process details ok",[]),
+
+	    #proc{dict=Dict} = ProcDetails,
+            io:format("~p\n", [Dict]),
+            Maps = crashdump_helper:create_maps(),
+            Maps = proplists:get_value(maps,Dict),
+            io:format("  maps ok",[]),
             ok;
 	_ ->
 	    ok
     end,
     ok.
 
+verify_binaries([H|T1], [H|T2]) ->
+    %% Heap binary.
+    verify_binaries(T1, T2);
+verify_binaries([Bin|T1], [['#CDVBin',Offset,Size,Pos]|T2]) ->
+    %% Refc binary.
+    {ok,<<Bin:Size/binary>>} = crashdump_viewer:expand_binary({Offset,Size,Pos}),
+    verify_binaries(T1, T2);
+verify_binaries([], []) ->
+    ok.
 
 lookat_all_pids([]) ->
     ok;
@@ -488,15 +603,49 @@ do_create_dumps(DataDir,Rel) ->
 	current ->
 	    CD3 = dump_with_args(DataDir,Rel,"instr","+Mim true"),
 	    CD4 = dump_with_strange_module_name(DataDir,Rel,"strangemodname"),
-            Bytes = rand:uniform(300000) + 100,
-            CD5 = dump_with_args(DataDir,Rel,"trunc.bytes",
+	    Tmp = dump_with_args(DataDir,Rel,"trunc_bytes",""),
+            {ok,#file_info{size=Max}} = file:read_file_info(Tmp),
+            ok = file:delete(Tmp),
+            Bytes = max(15,rand:uniform(Max)),
+            CD5 = dump_with_args(DataDir,Rel,"trunc_bytes",
                                  "-env ERL_CRASH_DUMP_BYTES " ++
                                      integer_to_list(Bytes)),
-	    {[CD1,CD2,CD3,CD4,CD5], DosDump};
+            CD6 = dump_with_unicode_atoms(DataDir,Rel,"unicode"),
+            CD7 = dump_with_maps(DataDir,Rel,"maps"),
+            TruncatedDumps = truncate_dump(CD1),
+	    {[CD1,CD2,CD3,CD4,CD5,CD6,CD7|TruncatedDumps], DosDump};
 	_ ->
 	    {[CD1,CD2], DosDump}
     end.
 
+truncate_dump(File) ->
+    {ok,Bin} = file:read_file(File),
+    BinTag = <<"\n=binary:">>,
+    Colon = <<":">>,
+    NewLine = case os:type() of
+                  {win32,_} -> <<"\r\n">>;
+                  _ -> <<"\n">>
+              end,
+    %% Split after "our binary" created by crashdump_helper
+    %% (it may not be the first binary).
+    RE = <<"\n=binary:(?=[0-9A-Z]+",NewLine/binary,"FF:010203)">>,
+    [StartBin,AfterTag] = re:split(Bin,RE,[{parts,2}]),
+    [AddrAndSize,BinaryAndRest] = binary:split(AfterTag,Colon),
+    [Binary,_Rest] = binary:split(BinaryAndRest,NewLine),
+    TruncSize = byte_size(Binary) - 2,
+    <<TruncBinary:TruncSize/binary,_/binary>> = Binary,
+    TruncName = filename:rootname(File) ++ ".trunc_bin",
+    write_trunc_files(TruncName,StartBin,
+                      [BinTag,AddrAndSize,Colon,TruncBinary],1).
+
+write_trunc_files(TruncName0,Bin,[Part|Parts],N) ->
+    TruncName = TruncName0++integer_to_list(N),
+    Bin1 = <<Bin/binary,Part/binary>>,
+    ok = file:write_file(TruncName,Bin1),
+    [TruncName|write_trunc_files(TruncName0,Bin1,Parts,N+1)];
+write_trunc_files(_,_,[],_) ->
+    [].
+
 
 %% Create a dump which has three visible nodes, one hidden and one
 %% not connected node, and with monitors and links between nodes.
@@ -573,6 +722,26 @@ dump_with_strange_module_name(DataDir,Rel,DumpName) ->
     ?t:stop_node(n1),
     CD.
 
+dump_with_unicode_atoms(DataDir,Rel,DumpName) ->
+    Opt = rel_opt(Rel),
+    Pz = "-pz \"" ++ filename:dirname(code:which(?MODULE)) ++ "\"",
+    PzOpt = [{args,Pz}],
+    {ok,N1} = ?t:start_node(n1,peer,Opt ++ PzOpt),
+    {ok,_Pid} = rpc:call(N1,crashdump_helper_unicode,start,[]),
+    CD = dump(N1,DataDir,Rel,DumpName),
+    ?t:stop_node(n1),
+    CD.
+
+dump_with_maps(DataDir,Rel,DumpName) ->
+    Opt = rel_opt(Rel),
+    Pz = "-pz \"" ++ filename:dirname(code:which(?MODULE)) ++ "\"",
+    PzOpt = [{args,Pz}],
+    {ok,N1} = ?t:start_node(n1,peer,Opt ++ PzOpt),
+    {ok,_Pid} = rpc:call(N1,crashdump_helper,dump_maps,[]),
+    CD = dump(N1,DataDir,Rel,DumpName),
+    ?t:stop_node(n1),
+    CD.
+
 dump(Node,DataDir,Rel,DumpName) ->
     Crashdump = filename:join(DataDir, dump_prefix(Rel)++DumpName),
     rpc:call(Node,os,putenv,["ERL_CRASH_DUMP",Crashdump]),
diff --git a/lib/observer/test/observer_SUITE.erl b/lib/observer/test/observer_SUITE.erl
index 41726b1521..0db2c1ea77 100644
--- a/lib/observer/test/observer_SUITE.erl
+++ b/lib/observer/test/observer_SUITE.erl
@@ -115,6 +115,7 @@ basic(doc) -> [""];
 basic(Config) when is_list(Config) ->
     timer:send_after(100, "foobar"), %% Otherwise the timer server gets added to procs
     ProcsBefore = processes(),
+    ProcInfoBefore = [{P,process_info(P)} || P <- ProcsBefore],
     NumProcsBefore = length(ProcsBefore),
 
     ok = observer:start(),
@@ -145,8 +146,10 @@ basic(Config) when is_list(Config) ->
     ProcsAfter = processes(),
     NumProcsAfter = length(ProcsAfter),
     if NumProcsAfter=/=NumProcsBefore ->
+            BeforeNotAfter = ProcsBefore -- ProcsAfter,
 	    ct:log("Before but not after:~n~p~n",
-		   [[{P,process_info(P)} || P <- ProcsBefore -- ProcsAfter]]),
+		   [[{P,I} || {P,I} <- ProcInfoBefore,
+                              lists:member(P,BeforeNotAfter)]]),
 	    ct:log("After but not before:~n~p~n",
 		   [[{P,process_info(P)} || P <- ProcsAfter -- ProcsBefore]]),
 	    ct:fail("leaking processes");
@@ -304,10 +307,10 @@ table_win(Config) when is_list(Config) ->
 %% Test PR-1296/OTP-14151
 %% Clicking a link to a port before the port tab has been activated the
 %% first time crashes observer.
-port_win_when_tab_not_initiated(Config) ->
+port_win_when_tab_not_initiated(_Config) ->
     {ok,Port} = gen_tcp:listen(0,[]),
     ok = observer:start(),
-    Notebook = setup_whitebox_testing(),
+    _Notebook = setup_whitebox_testing(),
     observer ! {open_link,erlang:port_to_list(Port)},
     timer:sleep(1000),
     observer:stop(),
diff --git a/lib/observer/test/ttb_SUITE.erl b/lib/observer/test/ttb_SUITE.erl
index c06ec21f36..ed62efbb58 100644
--- a/lib/observer/test/ttb_SUITE.erl
+++ b/lib/observer/test/ttb_SUITE.erl
@@ -222,7 +222,7 @@ file_fetch(Config) when is_list(Config) ->
     ?line ?t:capture_stop(),
     ?line [StoreString] = ?t:capture_get(),
     ?line UploadDir =
-	lists:last(string:tokens(lists:flatten(StoreString),"$ \n")),
+	lists:last(string:lexemes(lists:flatten(StoreString),"$ \n")),
 
     %% check that files are no longer in original directories...
     ?line ok = check_gone(ThisDir,atom_to_list(Node)++"-file_fetch"),
@@ -778,37 +778,37 @@ otp_4967_2(suite) ->
 otp_4967_2(doc) ->
     ["OTP-4967: Trace message sent to {Name, Node}"];
 otp_4967_2(Config) when is_list(Config) ->
-    io:format("1: ~p",[now()]),
+    io:format("1: ~p",[erlang:timestamp()]),
     ?line Privdir = priv_dir(Config),
-    io:format("2: ~p",[now()]),
+    io:format("2: ~p",[erlang:timestamp()]),
     ?line File = filename:join(Privdir,"otp_4967"),
-    io:format("3: ~p",[now()]),
+    io:format("3: ~p",[erlang:timestamp()]),
     ?line S = self(),
-    io:format("4: ~p",[now()]),
+    io:format("4: ~p",[erlang:timestamp()]),
     ?line {ok,[Node]} =
 	ttb:tracer(node(),[{file, File},
 			   {handler,{fun myhandler/4, S}}]),
 
-    io:format("5: ~p",[now()]),
+    io:format("5: ~p",[erlang:timestamp()]),
     %% Test that delayed registration of a process works.
     receive after 200 -> ok end,
     ?line register(otp_4967,self()),
-    io:format("6: ~p",[now()]),
+    io:format("6: ~p",[erlang:timestamp()]),
     ?line {ok,[{S,[{matched,Node,1}]}]} =  ttb:p(self(),s),
-    io:format("7: ~p",[now()]),
+    io:format("7: ~p",[erlang:timestamp()]),
     ?line {otp_4967,node()} ! heihopp,
-    io:format("8: ~p",[now()]),
+    io:format("8: ~p",[erlang:timestamp()]),
     ?line stopped = ttb:stop([format]),
-    io:format("9: ~p",[now()]),
+    io:format("9: ~p",[erlang:timestamp()]),
     ?line Msgs = flush(),
-    io:format("10: ~p",[now()]),
+    io:format("10: ~p",[erlang:timestamp()]),
     ?line io:format("Messages received: \n~p\n",[Msgs]),
-    io:format("11: ~p",[now()]),
+    io:format("11: ~p",[erlang:timestamp()]),
     ?line true = lists:member(heihopp,Msgs), % the heihopp message itself
-    io:format("13: ~p",[now()]),
+    io:format("13: ~p",[erlang:timestamp()]),
     ?line {value,{trace_ts,_,send,heihopp,{_,otp_4967,Node},{_,_,_}}} =
 	lists:keysearch(heihopp,4,Msgs), % trace trace of the heihopp message
-    io:format("14: ~p",[now()]),
+    io:format("14: ~p",[erlang:timestamp()]),
     ?line end_of_trace = lists:last(Msgs), % end of the trace
     ok.
     
@@ -1035,8 +1035,8 @@ logfile_name_in_fetch_dir(Config) when is_list(Config) ->
     ?line {ServerNode, ClientNode} = start_client_and_server(),
     ?line begin_trace(ServerNode, ClientNode, {local, ?FNAME}),
     ?line {_,Dir} = ttb:stop([return_fetch_dir]),
-    ?line P1 = lists:nth(3, string:tokens(filename:basename(Dir), "_")),
-    ?line P2 = hd(string:tokens(P1, "-")),
+    ?line P1 = lists:nth(3, string:lexemes(filename:basename(Dir), "_")),
+    ?line P2 = hd(string:lexemes(P1, "-")),
     ?line _File = P2.
 logfile_name_in_fetch_dir(cleanup,_Config) ->
     ?line stop_client_and_server().
diff --git a/lib/observer/vsn.mk b/lib/observer/vsn.mk
index 21edfcd184..5f43198f85 100644
--- a/lib/observer/vsn.mk
+++ b/lib/observer/vsn.mk
@@ -1 +1 @@
-OBSERVER_VSN = 2.4
+OBSERVER_VSN = 2.5
diff --git a/lib/odbc/doc/src/Makefile b/lib/odbc/doc/src/Makefile
index b66d00a88b..b3f93a7e9c 100644
--- a/lib/odbc/doc/src/Makefile
+++ b/lib/odbc/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1999-2016. All Rights Reserved.
+# Copyright Ericsson AB 1999-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -38,11 +38,9 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN)
 # Target Specs
 # ----------------------------------------------------
 XML_APPLICATION_FILES = ref_man.xml
-XML_REF3_FILES = odbc.xml 
+XML_REF3_FILES = odbc.xml
 
-XML_PART_FILES = part.xml \
-	part_notes.xml \
-	part_notes_history.xml
+XML_PART_FILES = part.xml
 
 XML_HTML_FILES = \
 	notes_history.xml
@@ -52,21 +50,15 @@ XML_CHAPTER_FILES = \
 	getting_started.xml \
 	databases.xml \
 	error_handling.xml \
-	notes.xml 
+	notes.xml
 
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
 GIF_FILES = \
-	book.gif \
-	odbc.gif \
-	note.gif \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif \
-	odbc_app_arc.gif 
+	odbc_app_arc.gif
 
 # ----------------------------------------------------
 
@@ -87,10 +79,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -117,12 +109,12 @@ man: $(MAN3_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)	# We depend just to copy them to ../html
 
-debug opt: 
+debug opt:
 
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/odbc/doc/src/book.gif b/lib/odbc/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/odbc/doc/src/book.gif
+++ /dev/null
diff --git a/lib/odbc/doc/src/fascicules.xml b/lib/odbc/doc/src/fascicules.xml
deleted file mode 100644
index 91251d4b20..0000000000
--- a/lib/odbc/doc/src/fascicules.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes 
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
-
diff --git a/lib/odbc/doc/src/note.gif b/lib/odbc/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/odbc/doc/src/note.gif
+++ /dev/null
diff --git a/lib/odbc/doc/src/notes.gif b/lib/odbc/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/odbc/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/odbc/doc/src/notes.xml b/lib/odbc/doc/src/notes.xml
index cc25a21c74..6a8b0485eb 100644
--- a/lib/odbc/doc/src/notes.xml
+++ b/lib/odbc/doc/src/notes.xml
@@ -11,7 +11,7 @@
       Licensed under the Apache License, Version 2.0 (the "License");
       you may not use this file except in compliance with the License.
       You may obtain a copy of the License at
- 
+
           http://www.apache.org/licenses/LICENSE-2.0
 
       Unless required by applicable law or agreed to in writing, software
@@ -21,7 +21,7 @@
       limitations under the License.
 
     </legalnotice>
-    
+
     <title>ODBC Release Notes</title>
     <prepared>otp_appnotes</prepared>
     <docno>nil</docno>
@@ -568,9 +568,9 @@
 
 </section>
 
-  
+
   <section><title>ODBC 2.10.7</title>
-  
+
     <section><title>Fixed Bugs and Malfunctions</title>
     <list>
       <item>
@@ -583,7 +583,7 @@
     </list>
     </section>
 
-    
+
     <section><title>Improvements and New Features</title>
       <list>
         <item>
@@ -720,7 +720,7 @@
   </section>
 
   <section><title>ODBC 2.10.5</title>
-  
+
   <section><title>Fixed Bugs and Malfunctions</title>
   <list>
     <item>
@@ -732,12 +732,12 @@
     </item>
   </list>
   </section>
-  
+
   </section>
 
 
   <section><title>ODBC 2.10.4</title>
-  
+
   <section><title>Improvements and New Features</title>
   <list>
     <item>
@@ -756,7 +756,7 @@
     </item>
   </list>
   </section>
-  
+
   </section>
 
  <section><title>ODBC 2.10.3</title>
@@ -787,7 +787,7 @@
 </section>
 
   <section><title>ODBC 2.10.2</title>
-  
+
     <section><title>Fixed Bugs and Malfunctions</title>
       <list>
         <item>
@@ -802,9 +802,9 @@
     </section>
 
   </section>
-  
+
   <section><title>ODBC 2.10.1</title>
-  
+
     <section><title>Improvements and New Features</title>
       <list>
         <item>
@@ -852,7 +852,7 @@
  </section>
 
   <section><title>ODBC 2.10</title>
-    
+
     <section><title>Improvements and New Features</title>
       <list>
         <item>
@@ -865,11 +865,11 @@
         </item>
       </list>
     </section>
-    
+
   </section>
 
   <section><title>ODBC 2.0.9</title>
-    
+
     <section><title>Improvements and New Features</title>
       <list>
         <item>
@@ -897,9 +897,9 @@
         </item>
       </list>
     </section>
-    
+
   </section>
-  
+
   <section>
     <title>ODBC 2.0.8</title>
 
@@ -1142,9 +1142,5 @@
         </item>
       </list>
     </section>
-    <!-- p>For information about older versions see
-      <url href="part_notes_history_frame.html">release notes history</url>.</p -->
   </section>
 </chapter>
-
-
diff --git a/lib/odbc/doc/src/odbc.gif b/lib/odbc/doc/src/odbc.gif
deleted file mode 100644
index fbbabee5aa..0000000000
--- a/lib/odbc/doc/src/odbc.gif
+++ /dev/null
diff --git a/lib/odbc/doc/src/odbc_index.gif b/lib/odbc/doc/src/odbc_index.gif
deleted file mode 100644
index fbbabee5aa..0000000000
--- a/lib/odbc/doc/src/odbc_index.gif
+++ /dev/null
diff --git a/lib/odbc/doc/src/part_notes.xml b/lib/odbc/doc/src/part_notes.xml
deleted file mode 100644
index 8f1dbd3fbc..0000000000
--- a/lib/odbc/doc/src/part_notes.xml
+++ /dev/null
@@ -1,41 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>ODBC Release Notes</title>
-    <prepared>Ingela Anderton Andin</prepared>
-    <docno></docno>
-    <date>2004-09-07</date>
-    <rev></rev>
-    <file>part_notes.sgml</file>
-  </header>
-  <description>
-    <p>An interface to relational SQL-databases built on ODBC (Open
-      Database Connectivity). </p>
-    <p>For information about older versions see
-      <url href="part_notes_history_frame.html">release notes history</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
-
diff --git a/lib/odbc/doc/src/part_notes_history.xml b/lib/odbc/doc/src/part_notes_history.xml
deleted file mode 100644
index 6f855f6ed1..0000000000
--- a/lib/odbc/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Odbc</title>
-    <prepared>Ingela Anderton Andin</prepared>
-    <docno></docno>
-    <date>2004-09-30</date>
-    <rev></rev>
-    <file>part_notes.sgml</file>
-  </header>
-  <include file="notes_history"></include>
-</part>
-
-
diff --git a/lib/odbc/doc/src/ref_man.gif b/lib/odbc/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/odbc/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/odbc/doc/src/user_guide.gif b/lib/odbc/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/odbc/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/odbc/doc/src/warning.gif b/lib/odbc/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/odbc/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/orber/doc/src/CosNaming.xml b/lib/orber/doc/src/CosNaming.xml
index d69b604f2f..251e721df1 100644
--- a/lib/orber/doc/src/CosNaming.xml
+++ b/lib/orber/doc/src/CosNaming.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1997</year><year>2016</year>
+      <year>1997</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -55,8 +55,8 @@ struct Binding {
 
 typedef sequence <Binding> BindingList;
     ]]></code>
-    <p>To get access to the record definitions for the structs use:
-      <c>-include_lib("orber/COSS/CosNaming.hrl").</c>.</p>
+    <p>To get access to the record definitions for the structs use:</p>
+    <code>-include_lib("orber/COSS/CosNaming.hrl").</code>
     <p>Names are not an ORB object but the can be structured in components as seen by 
       the definition above. There are no requirements on names so the service can support 
       many different conventions and standards.</p>
diff --git a/lib/orber/doc/src/CosNaming_NamingContext.xml b/lib/orber/doc/src/CosNaming_NamingContext.xml
index 96a6367cbb..4c83e6a240 100644
--- a/lib/orber/doc/src/CosNaming_NamingContext.xml
+++ b/lib/orber/doc/src/CosNaming_NamingContext.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1997</year><year>2016</year>
+      <year>1997</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -37,61 +37,54 @@
       naming contexts. Name context may be named in other contexts and cycles are
       permitted.</p>
     <p>The type <c>NameComponent</c> used below is defined as:</p>
-    <code type="none">
-      -record('CosNaming_NameComponent', {id, kind=""}).
-    </code>
+    <code type="erl">-record('CosNaming_NameComponent', {id, kind=""}).</code>
     <p>where <c>id</c> and <c>kind</c> are strings. </p>
     <p>The type <c>Binding</c> used below is defined as:</p>
-    <code type="none">
-      -record('CosNaming_Binding', {binding_name, binding_type}).
-    </code>
+    <code type="erl">-record('CosNaming_Binding', {binding_name, binding_type}).</code>
     <p>where <c>binding_name</c> is a Name and <c>binding_type</c> is an enum which 
       has the values <c>nobject</c> and <c>ncontext</c>.</p>
     <p>Both these records are defined in the file <c>CosNaming.hrl</c> and it 
       is included with:</p>
-    <code type="none">
-      -include_lib("orber/COSS/CosNaming/CosNaming.hrl").
-    </code>
+    <code type="erl">-include_lib("orber/COSS/CosNaming/CosNaming.hrl").</code>
     <p>There are a number of exceptions that can be returned from functions in this 
       interface.</p>
     <list type="bulleted">
       <item>
         <p>NotFound is defined as </p>
-        <code type="none">
--record('CosNaming_NamingContext_NotFound', 
-                      {rest_of_name, why}).        </code>
+        <code type="erl">
+-record('CosNaming_NamingContext_NotFound',
+        {rest_of_name, why}).</code>
       </item>
       <item>
         <p>CannotProceed is defined as </p>
-        <code type="none">
--record('CosNaming_NamingContext_CannotProceed', 
-                      {rest_of_name, cxt}).        </code>
+        <code type="erl">
+-record('CosNaming_NamingContext_CannotProceed',
+        {rest_of_name, cxt}).
+	</code>
       </item>
       <item>
         <p>InvalidName is defined as </p>
-        <code type="none">
--record('CosNaming_NamingContext_InvalidName', {}).        </code>
+        <code type="erl">
+-record('CosNaming_NamingContext_InvalidName', {}).
+	</code>
       </item>
       <item>
         <p>NotFound is defined as </p>
-        <code type="none">
--record('CosNaming_NamingContext_NotFound', {}).        </code>
+        <code type="erl">-record('CosNaming_NamingContext_NotFound', {}).</code>
       </item>
       <item>
         <p>AlreadyBound is defined as </p>
-        <code type="none">
--record('CosNaming_NamingContext_AlreadyBound', {}).        </code>
+        <code type="erl">-record('CosNaming_NamingContext_AlreadyBound', {}).</code>
       </item>
       <item>
         <p>NotEmpty is defined as </p>
-        <code type="none">
--record('CosNaming_NamingContext_NotEmpty', {).        </code>
+        <code type="erl">-record('CosNaming_NamingContext_NotEmpty', {}).</code>
       </item>
     </list>
     <p>These exceptions are defined in the file <c>CosNaming_NamingContext.hrl</c> and it 
       is included with:</p>
-    <code type="none">
-      -include_lib("orber/COSS/CosNaming/CosNaming_NamingContext.hrl").
+    <code type="erl">
+-include_lib("orber/COSS/CosNaming/CosNaming_NamingContext.hrl").
     </code>
   </description>
   <funcs>
diff --git a/lib/orber/doc/src/CosNaming_NamingContextExt.xml b/lib/orber/doc/src/CosNaming_NamingContextExt.xml
index a571b97ccb..2af3deadda 100644
--- a/lib/orber/doc/src/CosNaming_NamingContextExt.xml
+++ b/lib/orber/doc/src/CosNaming_NamingContextExt.xml
@@ -4,8 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>2000</year>
-      <year>2016</year>
+      <year>2000</year><year>2017</year>
       <holder>Ericsson AB, All Rights Reserved</holder>
     </copyright>
     <legalnotice>
@@ -36,8 +35,8 @@
   <description>
     <p>To get access to the record definitions for the structures use:      <br></br>
 </p>
-    <code type="none">
-        -include_lib("orber/COSS/CosNaming/CosNaming.hrl").
+    <code type="erl">
+-include_lib("orber/COSS/CosNaming/CosNaming.hrl").
     </code>
     <p>This module also exports the functions described in:</p>
     <list type="bulleted">
diff --git a/lib/orber/doc/src/Makefile b/lib/orber/doc/src/Makefile
index ecb0206443..c77345f12b 100644
--- a/lib/orber/doc/src/Makefile
+++ b/lib/orber/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1997-2016. All Rights Reserved.
+# Copyright Ericsson AB 1997-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -57,8 +57,7 @@ XML_REF3_FILES = \
 	orber_acl.xml
 
 XML_PART_FILES = \
-	part.xml \
-	part_notes.xml
+	part.xml
 
 XML_CHAPTER_FILES = \
 	ch_contents.xml \
@@ -79,15 +78,11 @@ XML_CHAPTER_FILES = \
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
-TECHNICAL_DESCR_FILES = 
+TECHNICAL_DESCR_FILES =
 
 GIF_FILES = \
-	book.gif \
-	notes.gif \
-	ref_man.gif \
-	user_guide.gif \
 	name.gif \
 	orbs.gif \
 	theORB.gif \
@@ -114,7 +109,7 @@ HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \
 	$(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html)
 
 INFO_FILE = ../../info
-EXTRA_FILES = summary.html.src \
+EXTRA_FILES = \
 	$(DEFAULT_GIF_FILES) \
 	$(DEFAULT_HTML_FILES) \
 	$(XML_REF3_FILES:%.xml=$(HTMLDIR)/%.html)
@@ -126,10 +121,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -157,11 +152,11 @@ man: $(MAN3_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/orber/doc/src/any.xml b/lib/orber/doc/src/any.xml
index f51712c97e..c94a2132d8 100644
--- a/lib/orber/doc/src/any.xml
+++ b/lib/orber/doc/src/any.xml
@@ -4,8 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1998</year>
-      <year>2016</year>
+      <year>1998</year><year>2017</year>
       <holder>Ericsson AB, All Rights Reserved</holder>
     </copyright>
     <legalnotice>
@@ -41,9 +40,7 @@
     <p>The type <c>TC</c> used below describes an IDL type and is a tuple according 
       to the to the Erlang language mapping.</p>
     <p>The type <c>Any</c> used below is defined as:</p>
-    <code type="none">
-      -record(any, {typecode, value}).
-    </code>
+    <code type="erl">-record(any, {typecode, value}).</code>
     <p>where <c>typecode</c> is a TC tuple and <c>value</c> is an Erlang term of 
       the type defined by the typecode field.</p>
   </description>
diff --git a/lib/orber/doc/src/book.gif b/lib/orber/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/orber/doc/src/book.gif
+++ /dev/null
diff --git a/lib/orber/doc/src/ch_debugging.xml b/lib/orber/doc/src/ch_debugging.xml
index a036cf5231..debac4313e 100644
--- a/lib/orber/doc/src/ch_debugging.xml
+++ b/lib/orber/doc/src/ch_debugging.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2001</year><year>2016</year>
+      <year>2001</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -121,7 +121,7 @@ Result.......: {'EXCEPTION',{'MARSHAL',[],102,'COMPLETED_NO'}}
         uses the <c>error_logger</c> module to generate the logs. If the traffic 
         is intense you probably want to write the reports to a log-file. 
         This is done by, for example, invoking:</p>
-      <code type="none">
+      <code type="erl">
 erl> error_logger:tty(false). 
 erl> error_logger:logfile({open, "/tmp/IIOPTrace"}). 
       </code>
diff --git a/lib/orber/doc/src/ch_exceptions.xml b/lib/orber/doc/src/ch_exceptions.xml
index 52735dc394..17657d0d4a 100644
--- a/lib/orber/doc/src/ch_exceptions.xml
+++ b/lib/orber/doc/src/ch_exceptions.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2001</year><year>2016</year>
+      <year>2001</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -192,7 +192,7 @@ module MyModule {
     <title>Throwing Exceptions</title>
     <p>To be able to raise <c>MyException</c> or <c>MyExceptionMsg</c> exceptions, 
       the generated <c>MyModule.hrl</c> must be included, and typical usage is:</p>
-    <code type="none">
+    <code type="erl">
 -module('MyModule_MyInterface_impl').
 -include("MyModule.hrl").
 
diff --git a/lib/orber/doc/src/ch_idl_to_erlang_mapping.xml b/lib/orber/doc/src/ch_idl_to_erlang_mapping.xml
index a0feda3f84..eaa88f24f1 100644
--- a/lib/orber/doc/src/ch_idl_to_erlang_mapping.xml
+++ b/lib/orber/doc/src/ch_idl_to_erlang_mapping.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>1997</year><year>2016</year>
+      <year>1997</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -819,7 +819,7 @@ module x {
     <p><term id="Type Codes"><termdef>Type codes give a complete description  of the type including all its components and structure.</termdef></term>are, for example, used in <seealso marker="any">Any</seealso> values.
       Hence, we can encapsulate the <c>employee</c> struct in an <c>any</c>
       type by:</p>
-    <code type="none">
+    <code type="erl">
 %% Erlang code
 ....
 AnEmployee = #'DB_employee'{'No'      = 1,
@@ -962,7 +962,7 @@ R1 = m_i:foo(Obj, 55),
       representation of the IDL-type <c>void</c>, must be returned by
       <c>baz</c> and <c>'_set_RWAttribute'</c>. 
       These operations can be implemented in the call-back module as:</p>
-    <code type="none">
+    <code type="erl">
 '_set_RWAttribute'(State, Long) ->
     {reply, ok, State}.
 
@@ -1011,7 +1011,7 @@ $> erlc +"{be,erl_template}" DB.idl
     <p>We begin with implementing the <c>DB_Access_impl.erl</c> module, which,
       if we used <c>erl_template</c>, will look like the following. All we need
       to do is to add the logic to the <c>logon</c> operation.</p>
-    <code type="none"><![CDATA[
+    <code type="erl"><![CDATA[
 %%----------------------------------------------------------------------
 %% <LICENSE>
 %% 
@@ -1154,7 +1154,7 @@ $ <input>erlc *.erl</input>
       <seealso marker="ch_exceptions">Exceptions</seealso> chapter.
       In the following example, only the implementation of the API functions
       are shown:</p>
-    <code type="none">
+    <code type="erl">
 %%======================================================================
 %% API Functions
 %%======================================================================
diff --git a/lib/orber/doc/src/ch_install.xml b/lib/orber/doc/src/ch_install.xml
index 9bc974225d..65faa91ccf 100644
--- a/lib/orber/doc/src/ch_install.xml
+++ b/lib/orber/doc/src/ch_install.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>1997</year><year>2016</year>
+      <year>1997</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -106,7 +106,7 @@
         necessary to start the Erlang distribution (i.e. using <c>-name/-sname</c>).</p>
       <p>If we use <c>ram_copies</c> there is no need for creating a disk based
         schema. Simply use:</p>
-      <code type="none">
+      <code type="erl">
 erl> mnesia:start().
 erl> corba:orb_init([{domain, "MyRAMSingleNodeORB"}]).
 erl> orber:install([node()], [{ifr_storage_type, ram_copies}]).
@@ -115,7 +115,7 @@ erl> orber:start().
       <p>If you installation requires <c>disc_copies</c> you must begin with
         creating a Mnesia schema. Otherwise, the installation is similar
         to a RAM installation:</p>
-      <code type="none">
+      <code type="erl">
 erl> mnesia:create_schema([node()]).
 erl> mnesia:start().
 erl> corba:orb_init([{domain, "MyDiskSingleNodeORB"}]).
@@ -137,7 +137,7 @@ erl> orber:start().
       <title>Install RAM Based Multi Node Orber</title>
       <p>Within a domain Orber uses the Erlang distribution protocol. Hence, you
         <em>must</em> start it first by, for example, using:</p>
-      <code type="none">
+      <code type="erl">
 hostA> erl -sname nodeA
       </code>
       <p>In this example, we assume that we want to use two nodes; <c>nodeA</c> and
@@ -146,7 +146,7 @@ hostA> erl -sname nodeA
         parameter <c>extra_db_nodes</c> or use <c>mnesia:change_config/2</c>. To 
         begin with, Mnesia must be started on all nodes before we can install
         Orber:</p>
-      <code type="none">
+      <code type="erl">
 nodeA@hostA> mnesia:start().
 nodeA@hostA> mnesia:change_config(extra_db_nodes, 
                                   [nodeA@hostA, nodeB@hostB]).
@@ -154,7 +154,7 @@ nodeA@hostA> mnesia:change_config(extra_db_nodes,
       <p>After that the above have been repeated on <c>nodeB</c> we must
         first make sure that both nodes will use the same domain name, then
         we can install Orber:</p>
-      <code type="none">
+      <code type="erl">
 nodeA@hostA> corba:orb_init([{domain, "MyRAMMultiNodeORB"}]).
 nodeA@hostA> orber:install([nodeA@hostA, nodeB@hostB],
                            [{ifr_storage_type, ram_copies}]).
@@ -162,7 +162,7 @@ nodeA@hostA> orber:start().
       </code>
       <p>Note that you can only invoke <c>orber:install/1/2</c> on one of the
         nodes. Now we can start Orber on the other node:</p>
-      <code type="none">
+      <code type="erl">
 nodeB@hostB> corba:orb_init([{domain, "MyRAMMultiNodeORB"}]).
 nodeB@hostB> orber:start().
       </code>
@@ -173,7 +173,7 @@ nodeB@hostB> orber:start().
       <p>As for RAM based multi-node Orber installations, the Erlang distribution
         must be started (e.g. erl -sname nodeA). The major difference is that
         when it is disk based a Mnesia schema must be created:</p>
-      <code type="none">
+      <code type="erl">
 nodeA@hostA> mnesia:create_schema([nodeA@hostA, nodeB@hostB]).
 nodeA@hostA> mnesia:start().
       </code>
@@ -183,7 +183,7 @@ nodeA@hostA> mnesia:start().
         <c>mnesia:start()</c>) on <c>nodeB</c>.</p>
       <p>After Mnesia have been started on all nodes, you must confirm that all 
         nodes have the same domain name, then Orber is ready to be installed:</p>
-      <code type="none">
+      <code type="erl">
 nodeA@hostA> corba:orb_init([{domain, "MyDiskMultiNodeORB"}]).
 nodeA@hostA> orber:install([nodeA@hostA, nodeB@hostB],
                            [{ifr_storage_type, disc_copies}]).
@@ -191,7 +191,7 @@ nodeA@hostA> orber:start().
       </code>
       <p>Note that you can only invoke <c>orber:install/1/2</c> on one of the
         nodes. Now we can start Orber on the other node:</p>
-      <code type="none">
+      <code type="erl">
 nodeB@hostB> corba:orb_init([{domain, "MyDiskMultiNodeORB"}]).
 nodeB@hostB> orber:start().
       </code>
@@ -918,7 +918,7 @@ TCP Firewall With NAT</icaption>
       verify whether access would be granted or not. For example, if Orber would
       be started with the ACL <c>[{tcp_out, "10.1.1.1/8#4001/5001"}]</c>, then 
       <c>orber_acl:match/2</c> would behave as follows:</p>
-    <code type="none">
+    <code type="erl">
 erl> orber_acl:match({11,1,1,1}, tcp_out).
 false
 
@@ -967,7 +967,7 @@ erl> orber_acl:match({10,1,1,1}, tcp_out, true).
       the configuration of the underlying system.</p>
     <p>Adding the interface context, for generated stubs/skeletons, is done in the 
       following way:</p>
-    <code type="none">
+    <code type="erl">
 Ctx = #'IOP_ServiceContext'{context_id = ?ORBER_GENERIC_CTX_ID, 
                             context_data = {interface, "10.0.0.1"}},
 'CosNaming_NamingContext':resolve(NS, [{context, [Ctx]}], Name),
diff --git a/lib/orber/doc/src/ch_interceptors.xml b/lib/orber/doc/src/ch_interceptors.xml
index 392fe7de82..4a9f8e69ca 100644
--- a/lib/orber/doc/src/ch_interceptors.xml
+++ b/lib/orber/doc/src/ch_interceptors.xml
@@ -4,7 +4,7 @@
 <chapter>
    <header>
     <copyright>
-      <year>2001</year><year>2016</year>
+      <year>2001</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -121,7 +121,7 @@ The Invocation Order of Interceptor Functions.</icaption>
       we store which objects the clients are allowed to invoke operations on
       and <c>ChecksumModule</c> determines which module we should use to handle
       the checksums. </p>
-    <code type="none">
+    <code type="erl">
 new_in_connection(Arg, Host, Port) ->
     %% Since we only use one interceptor we do not care about the
     %% input Arg since it is set do undefined by Orber.
@@ -141,7 +141,7 @@ new_in_connection(Arg, Host, Port) ->
     <p>When a new request comes in the first interceptor function to be invoked is
       <c>in_request_encoded</c>. We will remove the checksum from the coded
       request body in the following way:</p>
-    <code type="none">
+    <code type="erl">
 in_request_encoded({ObjTable, ChecksumModule}, ObjKey, Ctx, Op, Bin, Extra) ->
     NewBin = ChecksumModule:remove_checksum(Bin),
     {NewBin, Extra}.
@@ -154,7 +154,7 @@ in_request_encoded({ObjTable, ChecksumModule}, ObjKey, Ctx, Op, Bin, Extra) ->
       good throughput.</p>
     <p>If we want to we can restrict any clients to only use a subset of operations
       exported by a server:</p>
-    <code type="none">
+    <code type="erl">
 in_request({ObjTable, ChecksumModule}, ObjKey, Ctx, Op, Params, Extra) ->
     case ets:lookup(ObjTable, {ObjKey, Op}) of
          [] ->
@@ -166,13 +166,13 @@ in_request({ObjTable, ChecksumModule}, ObjKey, Ctx, Op, Params, Extra) ->
     <p>At this point Orber are now ready to invoke the operation on the target 
       object. Since we do not care about what the reply is the <c>out_reply</c>
       function do nothing, i.e.:</p>
-    <code type="none">
+    <code type="erl">
 out_reply(_, _, _, _, Reply, Extra) ->
     {Reply, Extra}.
     </code>
     <p>If the client side ORB expects a checksum to be added to the reply we
       add it by using:</p>
-    <code type="none">
+    <code type="erl">
 out_reply_encoded({ObjTable, ChecksumModule}, ObjKey, Ctx, Op, Bin, Extra) ->
     NewBin = ChecksumModule:add_checksum(Bin),
     {NewBin, Extra}.
@@ -183,8 +183,7 @@ out_reply_encoded({ObjTable, ChecksumModule}, ObjKey, Ctx, Op, Bin, Extra) ->
     </warning>
     <p>For outgoing requests the principle is the same. Hence, it is not further
       described here. The complete interceptor module would look like:</p>
-    <code type="none">
-
+    <code type="erl">
 -module(myInterceptor).
 
 %% Interceptor functions.
diff --git a/lib/orber/doc/src/ch_naming_service.xml b/lib/orber/doc/src/ch_naming_service.xml
index bcbab2a597..991402ae86 100644
--- a/lib/orber/doc/src/ch_naming_service.xml
+++ b/lib/orber/doc/src/ch_naming_service.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>1997</year><year>2016</year>
+      <year>1997</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -116,7 +116,7 @@ Figure 1: Contextual object relationships using the Naming Service.</icaption>
       <title>Fetch Initial Reference to the Naming Service</title>
       <p>In order to use the naming service you have to fetch an 
         initial reference to it. This is done with:</p>
-      <code type="none">
+      <code type="erl">
 NS = corba:resolve_initial_references("NameService").
       </code>
       <note>
@@ -128,14 +128,14 @@ NS = corba:resolve_initial_references("NameService").
       <title>Creating a Naming Context</title>
       <p>There are two functions for creating a naming context.
         The first function, which only creates a naming context object is:</p>
-      <code type="none">
+      <code type="erl">
 NC = 'CosNaming_NamingContext':new_context(NS).
       </code>
       <p>The other function creates a naming context and binds it to a name in 
         an already existing naming context (the initial context in this 
         example):
         </p>
-      <code type="none">
+      <code type="erl">
 NC = 'CosNaming_NamingContext':bind_new_context(NS, lname:new(["new"])).
       </code>
     </section>
@@ -150,19 +150,19 @@ NC = 'CosNaming_NamingContext':bind_new_context(NS, lname:new(["new"])).
       <list type="ordered">
         <item>
           <p>Use the naming library functions to create a name</p>
-          <code type="none">
+          <code type="erl">
 Name = lname:new(["object"]).
           </code>
         </item>
         <item>
           <p>Use CosNaming::NamingContext::bind() to bind a name to an object</p>
-          <code type="none">
+          <code type="erl">
 'CosNaming_NamingContext':bind(Sc, Name, Object).
           </code>
         </item>
         <item>
           <p>Use CosNaming::NamingContext::unbind() to remove the NameBinding from an object</p>
-          <code type="none">
+          <code type="erl">
 'CosNaming_NamingContext':unbind(Sc, Name).
           </code>
         </item>
@@ -180,19 +180,19 @@ Name = lname:new(["object"]).
       <list type="ordered">
         <item>
           <p>Use the naming library functions to create a name path:</p>
-          <code type="none">
+          <code type="erl">
 Name = lname:new(["workgroup", "services"]).
           </code>
         </item>
         <item>
           <p>Use CosNaming::NamingContext::resolve() to to resolve the name to an object</p>
-          <code type="none">
+          <code type="erl">
 Sc = 'CosNaming_NamingContext':resolve(NS, Name).
           </code>
         </item>
       </list>
       <p>An alternative is to use:</p>
-      <code type="none">
+      <code type="erl">
 Sc = corba:string_to_object("corbaname:rir:/NameService#workgroup/services/").
       </code>
       <p>The <c>corbaname</c> schema is described further in the Interoperable
@@ -205,7 +205,7 @@ Sc = corba:string_to_object("corbaname:rir:/NameService#workgroup/services/").
         <item>
           <p>Use CosNaming::NamingContext::list() to list all the bindings in a context</p>
           <p>The following code retrieves and lists up to 10 bindings from a context.</p>
-          <code type="none">
+          <code type="erl">
 {BList, BIterator} = 'CosNaming_NamingContext':list(Sc, 10).
 
 lists:foreach(fun({{Id, Kind},BindingType}) -> case BindingType of 
@@ -229,8 +229,8 @@ lists:foreach(fun({{Id, Kind},BindingType}) -> case BindingType of
           <em>must be removed</em> otherwise dangling processes will occur.
           Use <c>CosNaming::BindingIterator::destroy()</c> to remove it.</p>
       </warning>
-      <code type="none">
-      'CosNaming_NamingContext':destroy(BIterator).
+      <code type="erl">
+'CosNaming_NamingContext':destroy(BIterator).
       </code>
     </section>
 
@@ -241,7 +241,7 @@ lists:foreach(fun({{Id, Kind},BindingType}) -> case BindingType of
       <list type="ordered">
         <item>
           <p>Use CosNaming::NamingContext::destroy() to remove a NamingContext</p>
-          <code type="none">
+          <code type="erl">
 'CosNaming_NamingContext':destroy(Sc).
           </code>
         </item>
@@ -318,13 +318,13 @@ lists:foreach(fun({{Id, Kind},BindingType}) -> case BindingType of
         listed below, they should be associated with. The <c>NameService</c>
         key may <em>not</em> be changed in Orber. If you want to add one of the
         reserved keys as an initial service, simply use:</p>
-      <code type="none">
+      <code type="erl">
 1> Factory = cosNotificationApp:start_global_factory().
 2> corba:add_initial_service("NotificationService", Factory).
       </code>
       <p>This object can then be easily resolved by any other ORB, supporting 
         the Interoperable Naming Service, by using:</p>
-      <code type="none">
+      <code type="erl">
 3> NF = corba:string_to_object("corbaloc::[email protected]:4001/NotificationService").
       </code>
       <table>
@@ -438,13 +438,13 @@ lists:foreach(fun({{Id, Kind},BindingType}) -> case BindingType of
         <tcaption>Stringified Name representation</tcaption>
       </table>
       <p>After creating a stringified Name we can either use:</p>
-      <code type="none">
+      <code type="erl">
 NameStr = "org.erlang",
 NS      = corba:resolve_initial_references("NameService"),
 Obj     = 'CosNaming_NamingContextExt':resolve_str(NS, NameStr),
       </code>
       <p>or concatenate the Name String using:</p>
-      <code type="none">
+      <code type="erl">
 NameStr = "Swedish/Soccer/Champions",
 Address = "corbaname:iiop:[email protected]:2000/NameService",
 NS      = corba:resolve_initial_references("NameService"),
diff --git a/lib/orber/doc/src/ch_orberweb.xml b/lib/orber/doc/src/ch_orberweb.xml
index be1d7fb983..c9dcc382e6 100644
--- a/lib/orber/doc/src/ch_orberweb.xml
+++ b/lib/orber/doc/src/ch_orberweb.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2001</year><year>2016</year>
+      <year>2001</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -208,8 +208,7 @@
     <p>You may choose to start OrberWeb on node, on which Orber is running or not. But
       the Erlang distribution must be started (e.g. by using -sname aNodeName). Now, all 
       you have to do is to invoke:</p>
-    <code type="none">
-    
+    <code type="none">    
 erl> webtool:start().
 WebTool is available at http://localhost:8888/
 Or  http://127.0.0.1:8888/
diff --git a/lib/orber/doc/src/ch_stubs.xml b/lib/orber/doc/src/ch_stubs.xml
index 144191a66a..9290c127f9 100644
--- a/lib/orber/doc/src/ch_stubs.xml
+++ b/lib/orber/doc/src/ch_stubs.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>1999</year><year>2016</year>
+      <year>1999</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -158,7 +158,7 @@ up_to_date
         <p>Arguments and Replies are determined by the IDL-code and, hence, not
           further described here.</p>
       </note>
-      <code type="none">
+      <code type="erl">
 %%%-----------------------------------------------------------
 %%% File    : Module_Interface_impl.erl
 %%% Author  : 
diff --git a/lib/orber/doc/src/corba.xml b/lib/orber/doc/src/corba.xml
index d89f035dba..fbfb55f2f2 100644
--- a/lib/orber/doc/src/corba.xml
+++ b/lib/orber/doc/src/corba.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1997</year><year>2016</year>
+      <year>1997</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -370,12 +370,12 @@ Example:
       <desc>
         <p>This function takes a <c>corbaname</c>, <c>corbaloc</c> or an IOR on the
           external string representation and returns the object reference.</p>
-        <p>To lookup the NameService reference, simply use
-          <c>"corbaloc:iiop:[email protected]:4001/NameService"</c></p>
-        <p>We can also resolve an object from the NameService by using
-          <c>"corbaname:iiop:[email protected]:4001/NameService#org/Erlang/MyObj"</c></p>
-        <p>To lookup the NameService reference with an IPv6 address, simply use
-          <c>"corbaloc:iiop:1.2@[FEC1:0:3:0:0312:44AF:FAB1:3D01]:4001/NameService"</c></p>
+        <p>To lookup the NameService reference, simply use:</p>
+        <code>corbaloc:iiop:[email protected]:4001/NameService</code>
+        <p>We can also resolve an object from the NameService by using:</p>
+        <code>corbaname:iiop:[email protected]:4001/NameService#org/Erlang/MyObj</code>
+        <p>To lookup the NameService reference with an IPv6 address, simply use:</p>
+        <code>corbaloc:iiop:1.2@[FEC1:0:3:0:0312:44AF:FAB1:3D01]:4001/NameService</code>
         <p>For more information about <c>corbaname</c> and <c>corbaloc</c>, see
           the User's Guide (Interoperable Naming Service).</p>
         <p>The <em>configuration</em> context is used to override the global
diff --git a/lib/orber/doc/src/fascicules.xml b/lib/orber/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/orber/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/orber/doc/src/fixed.xml b/lib/orber/doc/src/fixed.xml
index a751476cf7..ef4d1bd604 100644
--- a/lib/orber/doc/src/fixed.xml
+++ b/lib/orber/doc/src/fixed.xml
@@ -4,8 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>2002</year>
-      <year>2016</year>
+      <year>2002</year><year>2017</year>
       <holder>Ericsson AB, All Rights Reserved</holder>
     </copyright>
     <legalnotice>
@@ -38,8 +37,8 @@
   <description>
     <p>This module contains functions that gives an interface to the CORBA fixed type.</p>
     <p>The type <c>Fixed</c> used below is defined as:</p>
-    <code type="none">
-      -record(fixed, {digits, scale, value}).
+    <code type="erl">
+-record(fixed, {digits, scale, value}).
     </code>
     <p>where <c>digits</c> is the total amount of digits it consists of and 
       <c>scale</c> is the number of fractional digits. The <c>value</c> field
diff --git a/lib/orber/doc/src/lname.xml b/lib/orber/doc/src/lname.xml
index 09d6859777..c0c9be1a85 100644
--- a/lib/orber/doc/src/lname.xml
+++ b/lib/orber/doc/src/lname.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1997</year><year>2016</year>
+      <year>1997</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -44,14 +44,14 @@
       the Names are represented as standard Erlang lists and therefor will be removed 
       by the garbage collector when not in use.</p>
     <p>The type <c>NameComponent</c> used below is defined as:</p>
-    <code type="none">
-      -record('CosNaming_NameComponent', {id, kind=""}).
+    <code type="erl">
+-record('CosNaming_NameComponent', {id, kind=""}).
     </code>
     <p><c>id</c> and <c>kind</c> are strings. </p>
     <p>The record is defined in the file <c>CosNaming.hrl</c> and it 
       is included with:</p>
-    <code type="none">
-      -include_lib("orber/COSS/CosNaming/CosNaming.hrl").
+    <code type="erl">
+-include_lib("orber/COSS/CosNaming/CosNaming.hrl").
     </code>
   </description>
   <funcs>
diff --git a/lib/orber/doc/src/lname_component.xml b/lib/orber/doc/src/lname_component.xml
index 631e5d0244..8b8001c0fb 100644
--- a/lib/orber/doc/src/lname_component.xml
+++ b/lib/orber/doc/src/lname_component.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>1997</year><year>2016</year>
+      <year>1997</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -44,14 +44,14 @@
       function because the NameComponents are represented as Erlang records and 
       therefor will be removed by the garbage collector when not in use.</p>
     <p>The type <c>NameComponent</c> used below is defined as:</p>
-    <code type="none">
-      -record('CosNaming_NameComponent', {id, kind=""}).
+    <code type="erl">
+-record('CosNaming_NameComponent', {id, kind=""}).
     </code>
     <p><c>id</c> and <c>kind</c> are strings. </p>
     <p>The record is defined in the file <c>CosNaming.hrl</c> and it 
       is included with:</p>
-    <code type="none">
-      -include_lib("orber/COSS/CosNaming/CosNaming.hrl").
+    <code type="erl">
+-include_lib("orber/COSS/CosNaming/CosNaming.hrl").
     </code>
   </description>
   <funcs>
diff --git a/lib/orber/doc/src/notes.gif b/lib/orber/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/orber/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/orber/doc/src/orber.gif b/lib/orber/doc/src/orber.gif
deleted file mode 100644
index d78cf7d8ed..0000000000
--- a/lib/orber/doc/src/orber.gif
+++ /dev/null
diff --git a/lib/orber/doc/src/part_notes.xml b/lib/orber/doc/src/part_notes.xml
deleted file mode 100644
index 61d9d4c3b9..0000000000
--- a/lib/orber/doc/src/part_notes.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>1997</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Orber Release Notes</title>
-    <prepared>Lars Thors&eacute;n, Peter Lundell</prepared>
-    <docno></docno>
-    <date>1999-04-20</date>
-    <rev>2.0</rev>
-  </header>
-  <description>
-    <p>The Orber Application is an Erlang implementation of a CORBA Object 
-      Request Broker.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/orber/doc/src/ref_man.gif b/lib/orber/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/orber/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/orber/doc/src/summary.html.src b/lib/orber/doc/src/summary.html.src
deleted file mode 100644
index f88ee7218f..0000000000
--- a/lib/orber/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-A CORBA Object Request Broker
diff --git a/lib/orber/doc/src/user_guide.gif b/lib/orber/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/orber/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/os_mon/doc/src/Makefile b/lib/os_mon/doc/src/Makefile
index 91c7ae7bc3..4aa8879a91 100644
--- a/lib/os_mon/doc/src/Makefile
+++ b/lib/os_mon/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 1997-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 1997-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 include $(ERL_TOP)/make/target.mk
@@ -43,16 +43,14 @@ XML_REF3_FILES = cpu_sup.xml \
 	os_sup.xml \
 	nteventlog.xml
 
-XML_REF6_FILES = os_mon_app.xml 
+XML_REF6_FILES = os_mon_app.xml
 
-XML_PART_FILES = part_notes.xml
+XML_PART_FILES =
 XML_CHAPTER_FILES = notes.xml
 
 BOOK_FILES = book.xml
 
-GIF_FILES = \
-	note.gif \
-	warning.gif
+GIF_FILES =
 
 XML_FILES = \
 	$(BOOK_FILES) $(XML_CHAPTER_FILES) \
@@ -74,9 +72,9 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -96,17 +94,17 @@ man: $(MAN3_FILES) $(MAN6_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
 	rm -f $(MAN3DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -122,4 +120,3 @@ release_docs_spec: docs
 	$(INSTALL_DATA) $(MAN6DIR)/* "$(RELEASE_PATH)/man/man6"
 
 release_spec:
-
diff --git a/lib/os_mon/doc/src/fascicules.xml b/lib/os_mon/doc/src/fascicules.xml
deleted file mode 100644
index fadd37eefb..0000000000
--- a/lib/os_mon/doc/src/fascicules.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/os_mon/doc/src/note.gif b/lib/os_mon/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/os_mon/doc/src/note.gif
+++ /dev/null
diff --git a/lib/os_mon/doc/src/notes.xml b/lib/os_mon/doc/src/notes.xml
index df4151147c..b29a64155e 100644
--- a/lib/os_mon/doc/src/notes.xml
+++ b/lib/os_mon/doc/src/notes.xml
@@ -31,6 +31,23 @@
   </header>
   <p>This document describes the changes made to the OS_Mon application.</p>
 
+<section><title>Os_Mon 2.4.3</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    On macOS 10.13 (High Sierra), disksup could not grab
+	    information for any disks that used the new APFS file
+	    system. That has been corrected.</p>
+          <p>
+	    Own Id: OTP-14560 Aux Id: ERL-461 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Os_Mon 2.4.2</title>
 
     <section><title>Improvements and New Features</title>
diff --git a/lib/os_mon/doc/src/part_notes.xml b/lib/os_mon/doc/src/part_notes.xml
deleted file mode 100644
index 364178acc3..0000000000
--- a/lib/os_mon/doc/src/part_notes.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>OS_Mon Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The operating system monitor, OS_Mon, provides services for
-      monitoring CPU load, disk usage, memory usage and OS messages.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/os_mon/doc/src/user_guide.gif b/lib/os_mon/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/os_mon/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/os_mon/doc/src/warning.gif b/lib/os_mon/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/os_mon/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/os_mon/src/cpu_sup.erl b/lib/os_mon/src/cpu_sup.erl
index e758b63d19..c1c972b5b1 100644
--- a/lib/os_mon/src/cpu_sup.erl
+++ b/lib/os_mon/src/cpu_sup.erl
@@ -244,7 +244,7 @@ get_uint32_measurement(Request, #internal{os_type = {unix, Sys}}) when Sys == ir
     %% Get the load average using uptime.
     %% "8:01pm  up 2 days, 22:12,  4 users,  load average: 0.70, 0.58, 0.43"
     D = os:cmd("uptime") -- "\n",
-    Avg = lists:reverse(hd(string:tokens(lists:reverse(D), ":"))),
+    Avg = lists:reverse(hd(string:lexemes(lists:reverse(D), ":"))),
     {ok, [L1, L5, L15], _} = io_lib:fread("~f, ~f, ~f", Avg),
     case Request of
 	?avg1  -> sunify(L1);
diff --git a/lib/os_mon/src/memsup.erl b/lib/os_mon/src/memsup.erl
index 0a9a883390..95cb798ba5 100644
--- a/lib/os_mon/src/memsup.erl
+++ b/lib/os_mon/src/memsup.erl
@@ -705,7 +705,7 @@ get_os_wordsize_with_uname() ->
 	_         -> 32
     end.
 
-clean_string(String) -> lists:flatten(string:tokens(String,"\r\n\t ")).
+clean_string(String) -> lists:flatten(string:lexemes(String,"\r\n\t ")).
     
 
 %%--Replying to pending clients-----------------------------------------
diff --git a/lib/os_mon/vsn.mk b/lib/os_mon/vsn.mk
index 59a3d9dee4..e4250f577b 100644
--- a/lib/os_mon/vsn.mk
+++ b/lib/os_mon/vsn.mk
@@ -1 +1 @@
-OS_MON_VSN = 2.4.2
+OS_MON_VSN = 2.4.3
diff --git a/lib/otp_mibs/doc/src/Makefile b/lib/otp_mibs/doc/src/Makefile
index 62698b9300..c65e2a8e3c 100644
--- a/lib/otp_mibs/doc/src/Makefile
+++ b/lib/otp_mibs/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2003-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2003-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 
@@ -38,7 +38,7 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN)
 XML_APPLICATION_FILES = ref_man.xml
 XML_REF3_FILES = otp_mib.xml
 
-XML_PART_FILES = part.xml part_notes.xml
+XML_PART_FILES = part.xml
 XML_CHAPTER_FILES = \
 	introduction.xml \
 	mibs.xml \
@@ -50,7 +50,7 @@ XML_FILES = \
 	$(BOOK_FILES) $(XML_CHAPTER_FILES) \
 	$(XML_PART_FILES) $(XML_REF3_FILES) $(XML_APPLICATION_FILES)
 
-GIF_FILES = note.gif
+GIF_FILES =
 
 # ----------------------------------------------------
 
@@ -95,7 +95,7 @@ clean clean_docs:
 	rm -rf $(HTMLDIR)/*
 	rm -f $(MAN3DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 # ----------------------------------------------------
 # Release Target
@@ -113,4 +113,3 @@ release_docs_spec: docs
 	$(INSTALL_DATA) $(MAN3DIR)/* "$(RELEASE_PATH)/man/man3"
 
 release_spec:
-
diff --git a/lib/otp_mibs/doc/src/fascicules.xml b/lib/otp_mibs/doc/src/fascicules.xml
deleted file mode 100644
index c075478967..0000000000
--- a/lib/otp_mibs/doc/src/fascicules.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
-
diff --git a/lib/otp_mibs/doc/src/note.gif b/lib/otp_mibs/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/otp_mibs/doc/src/note.gif
+++ /dev/null
diff --git a/lib/otp_mibs/doc/src/part_notes.xml b/lib/otp_mibs/doc/src/part_notes.xml
deleted file mode 100644
index 5c03d28720..0000000000
--- a/lib/otp_mibs/doc/src/part_notes.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>OTP_Mibs Release Notes</title>
-    <prepared>Ingela Anderton Andin</prepared>
-    <docno></docno>
-    <date>2004-09-07</date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The <em>OTP_Mibs</em> application provides an SNMP management
-      information base for Erlang nodes.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
-
diff --git a/lib/parsetools/doc/src/Makefile b/lib/parsetools/doc/src/Makefile
index 8b03ed0fc7..e4cd2c0a76 100644
--- a/lib/parsetools/doc/src/Makefile
+++ b/lib/parsetools/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 1997-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 1997-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 
@@ -39,7 +39,7 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN)
 XML_APPLICATION_FILES = ref_man.xml
 XML_REF3_FILES = yecc.xml leex.xml
 
-XML_PART_FILES = part_notes.xml
+XML_PART_FILES =
 XML_CHAPTER_FILES = notes.xml
 
 BOOK_FILES = book.xml
@@ -48,8 +48,7 @@ XML_FILES = \
 	$(BOOK_FILES) $(XML_CHAPTER_FILES) \
 	$(XML_PART_FILES) $(XML_REF3_FILES) $(XML_APPLICATION_FILES)
 
-GIF_FILES = \
-	note.gif
+GIF_FILES =
 
 XML_HTML_FILES = \
 	notes_history.xml
@@ -69,10 +68,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -98,11 +97,11 @@ man: $(MAN3_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -117,4 +116,3 @@ release_docs_spec: docs
 
 
 release_spec:
-
diff --git a/lib/parsetools/doc/src/fascicules.xml b/lib/parsetools/doc/src/fascicules.xml
deleted file mode 100644
index fadd37eefb..0000000000
--- a/lib/parsetools/doc/src/fascicules.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/parsetools/doc/src/note.gif b/lib/parsetools/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/parsetools/doc/src/note.gif
+++ /dev/null
diff --git a/lib/parsetools/doc/src/part_notes.xml b/lib/parsetools/doc/src/part_notes.xml
deleted file mode 100644
index 5e0824e839..0000000000
--- a/lib/parsetools/doc/src/part_notes.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>1997</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>PARSETOOLS Release Notes</title>
-    <prepared>Carl Velin</prepared>
-    <docno></docno>
-    <date>1997-04-28</date>
-    <rev>1.0</rev>
-    <file>part_notes.sgml</file>
-  </header>
-  <description>
-    <p>The <em>Parsetools</em> application contains utilities for
-      parsing and scanning. Yecc is an <term id="LALR-1"></term>parser
-      generator for Erlang, similar to yacc. Yecc takes a <term
-      id="BNF"></term>grammar definition as input, and produces Erlang
-      code for a parser as output. Leex is a regular expression based
-      lexical analyzer generator for Erlang, similar to lex or flex.</p>
-    <p>There are also release notes for
-      <seealso marker="notes_history">older versions</seealso>.</p>
-  </description>
-  <xi:lude href="notes.xml"/>
-</part>
-
diff --git a/lib/parsetools/doc/src/user_guide.gif b/lib/parsetools/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/parsetools/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/parsetools/doc/src/warning.gif b/lib/parsetools/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/parsetools/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/parsetools/include/leexinc.hrl b/lib/parsetools/include/leexinc.hrl
index b4449607cb..2a74c252ff 100644
--- a/lib/parsetools/include/leexinc.hrl
+++ b/lib/parsetools/include/leexinc.hrl
@@ -272,6 +272,8 @@ skip_cont(Rest, Line, {skip_token,Push}, Error) ->
 skip_cont(Rest, Line, {error,_S}, Error) ->
     skip_tokens(yystate(), Rest, Line, Rest, 0, Line, Error, reject, 0).
 
+-compile({nowarn_unused_function, [yyrev/1, yyrev/2, yypre/2, yysuf/2]}).
+
 yyrev(List) -> lists:reverse(List).
 yyrev(List, Tail) -> lists:reverse(List, Tail).
 yypre(List, N) -> lists:sublist(List, N).
@@ -282,6 +284,8 @@ yysuf(List, N) -> lists:nthtail(N, List).
 %% Line has been updated with respect to newlines in the prefix of
 %% Chars consisting of (TokenLength - AcceptLength) characters.
 
+-compile({nowarn_unused_function, adjust_line/4}).
+
 adjust_line(N, N, _Cs, L) -> L;
 adjust_line(T, A, [$\n|Cs], L) ->
     adjust_line(T-1, A, Cs, L-1);
diff --git a/lib/parsetools/src/leex.erl b/lib/parsetools/src/leex.erl
index e2e7d7359f..8a4a5e8d86 100644
--- a/lib/parsetools/src/leex.erl
+++ b/lib/parsetools/src/leex.erl
@@ -37,7 +37,6 @@
 -import(lists, [member/2,reverse/1,sort/1,delete/2,
                 keysort/2,keydelete/3,
                 map/2,foldl/3,foreach/2,flatmap/2]).
--import(string, [substr/2,substr/3,span/2]).
 -import(ordsets, [is_element/2,add_element/2,union/2]).
 -import(orddict, [store/3]).
 
@@ -251,10 +250,10 @@ is_filename(T) ->
 
 shorten_filename(Name0) ->
     {ok,Cwd} = file:get_cwd(),
-    case lists:prefix(Cwd, Name0) of
-        false -> Name0;
-        true ->
-            case lists:nthtail(length(Cwd), Name0) of
+    case string:prefix(Name0, Cwd) of
+        nomatch -> Name0;
+        Rest ->
+            case unicode:characters_to_list(Rest) of
                 "/"++N -> N;
                 N -> N
             end
@@ -490,12 +489,9 @@ parse_rules_end(_, NextLine, REAs, As, St) ->
 %% action has been read. Keep track of line number.
 
 collect_rule(Ifile, Chars, L0) ->
-    %% Erlang strings are 1 based, but re 0 :-(
-    {match,[{St0,Len}|_]} = re:run(Chars, "[^ \t\r\n]+", [unicode]),
-    St = St0 + 1,
-    %%io:fwrite("RE = ~p~n", [substr(Chars, St, Len)]),
-    case collect_action(Ifile, substr(Chars, St+Len), L0, []) of
-        {ok,[{':',_}|Toks],L1} -> {ok,substr(Chars, St, Len),Toks,L1};
+    {RegExp,Rest} = string:take(Chars, " \t\r\n", true),
+    case collect_action(Ifile, Rest, L0, []) of
+        {ok,[{':',_}|Toks],L1} -> {ok,RegExp,Toks,L1};
         {ok,_,_} -> {error,{L0,leex,bad_rule}};
         {eof,L1} -> {error,{L1,leex,bad_rule}};
         {error,E,_} -> {error,E}
@@ -549,7 +545,7 @@ var_used(Name, Toks) ->
 
 parse_rule_regexp(RE0, [{M,Exp}|Ms], St) ->
     Split= re:split(RE0, "\\{" ++ M ++ "\\}", [{return,list},unicode]),
-    RE1 = string:join(Split, Exp),
+    RE1 = lists:append(lists:join(Exp, Split)),
     parse_rule_regexp(RE1, Ms, St);
 parse_rule_regexp(RE, [], St) ->
     %%io:fwrite("RE = ~p~n", [RE]),
@@ -589,9 +585,9 @@ nextline(Ifile, L, St) ->
         eof -> {eof,L};
         {error, _} -> add_error({L+1, leex, cannot_parse}, St);
         Chars ->
-            case substr(Chars, span(Chars, " \t\n")+1) of
-                [$%|_Rest] -> nextline(Ifile, L+1, St);
-                [] -> nextline(Ifile, L+1, St);
+            case string:take(Chars, " \t\n") of
+                {_, [$%|_Rest]} -> nextline(Ifile, L+1, St);
+                {_, []} -> nextline(Ifile, L+1, St);
                 _Other -> {ok,Chars,L+1}
             end
     end.
@@ -824,7 +820,7 @@ re_char_class(Cs, Cc, _) -> {reverse(Cc),Cs}.   % Preserve order
 %% posix_cc("space" ++ Cs) -> {space,Cs};
 %% posix_cc("upper" ++ Cs) -> {upper,Cs};
 %% posix_cc("xdigit" ++ Cs) -> {xdigit,Cs};
-%% posix_cc(Cs) -> parse_error({posix_cc,substr(Cs, 1, 5)}).
+%% posix_cc(Cs) -> parse_error({posix_cc,string:slice(Cs, 0, 5)}).
 
 escape_char($n) -> $\n;                         % \n = LF
 escape_char($r) -> $\r;                         % \r = CR
@@ -863,7 +859,7 @@ escape_char(C) -> C.                            % Pass it straight through
 %% re_number(Cs, Acc) -> {Acc,Cs}.
 
 string_between(Cs1, Cs2) ->
-    substr(Cs1, 1, length(Cs1)-length(Cs2)).
+    string:slice(Cs1, 0, string:length(Cs1)-string:length(Cs2)).
 
 %% We use standard methods, Thompson's construction and subset
 %% construction, to create first an NFA and then a DFA from the
@@ -1343,7 +1339,7 @@ out_file(Ifile, Ofile, St, DFA, DF, Actions, Code, L) ->
         eof -> output_file_directive(Ofile, St#leex.ifile, L);
         {error, _} -> add_error(St#leex.ifile, {L, leex, cannot_parse}, St);
         Line ->
-            case substr(Line, 1, 5) of
+            case string:slice(Line, 0, 5) of
                 "##mod" -> out_module(Ofile, St);
                 "##cod" -> out_erlang_code(Ofile, St, Code, L);
                 "##dfa" -> out_dfa(Ofile, St, DFA, Code, DF, L);
@@ -1523,7 +1519,7 @@ prep_out_actions(As) ->
                 Name = list_to_atom(lists:concat([yyaction_,A])),
                 [Chars,Len,Line,_,_] = Vars,
                 Args = [V || V <- [Chars,Len,Line], V =/= "_"],
-                ArgsChars = string:join(Args, ", "),
+                ArgsChars = lists:join(", ", Args),
                 {A,Code,Vars,Name,Args,ArgsChars}
         end, As).
 
diff --git a/lib/parsetools/src/yecc.erl b/lib/parsetools/src/yecc.erl
index 36e33b52a4..b4e1cfe5e3 100644
--- a/lib/parsetools/src/yecc.erl
+++ b/lib/parsetools/src/yecc.erl
@@ -365,10 +365,10 @@ is_filename(T) ->
 
 shorten_filename(Name0) ->
     {ok,Cwd} = file:get_cwd(),
-    case lists:prefix(Cwd, Name0) of
-        false -> Name0;
-        true ->
-            case lists:nthtail(length(Cwd), Name0) of
+    case string:prefix(Name0, Cwd) of
+        nomatch -> Name0;
+        Rest ->
+            case unicode:characters_to_list(Rest) of
                 "/"++N -> N;
                 N -> N
             end
@@ -2196,8 +2196,8 @@ output_reduce(St0, State, Terminal,
                 St20;
             true ->
                 Ns = "Nss",
-                Tmp = string:join(lists:duplicate(NmbrOfDaughters - 1, "_"),
-                                  ","),
+                Tmp = lists:join(",",
+                                  lists:duplicate(NmbrOfDaughters - 1, "_")),
                 fwrite(St20, <<" [~s|Nss] = Ss,\n">>, [Tmp])
         end,
     St40 = case tokens(RuleNmbr, St30) of
diff --git a/lib/public_key/doc/src/Makefile b/lib/public_key/doc/src/Makefile
index 5bdc5d4159..f5157fe87a 100644
--- a/lib/public_key/doc/src/Makefile
+++ b/lib/public_key/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2008-2016. All Rights Reserved.
+# Copyright Ericsson AB 2008-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -40,7 +40,7 @@ XML_APPLICATION_FILES = ref_man.xml
 XML_REF3_FILES = public_key.xml
 XML_REF6_FILES = public_key_app.xml
 
-XML_PART_FILES = part.xml part_notes.xml
+XML_PART_FILES = part.xml
 XML_CHAPTER_FILES = \
 	introduction.xml \
         public_key_records.xml \
@@ -50,9 +50,9 @@ XML_CHAPTER_FILES = \
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \
-             $(XML_REF6_FILES) $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+             $(XML_REF6_FILES) $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
-GIF_FILES = note.gif
+GIF_FILES =
 
 # ----------------------------------------------------
 
diff --git a/lib/public_key/doc/src/fascicules.xml b/lib/public_key/doc/src/fascicules.xml
deleted file mode 100644
index 25e7008537..0000000000
--- a/lib/public_key/doc/src/fascicules.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="usersguide" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference  Manual
-  </fascicule>
-  <fascicule file="release_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
-
diff --git a/lib/public_key/doc/src/note.gif b/lib/public_key/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/public_key/doc/src/note.gif
+++ /dev/null
diff --git a/lib/public_key/doc/src/notes.xml b/lib/public_key/doc/src/notes.xml
index 64592a6d87..7a7c828760 100644
--- a/lib/public_key/doc/src/notes.xml
+++ b/lib/public_key/doc/src/notes.xml
@@ -35,6 +35,76 @@
     <file>notes.xml</file>
   </header>
 
+<section><title>Public_Key 1.5</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    public_key now handles elliptic curve parameters in a
+	    consistent way so that decoded ECDSA keys can be
+	    correctly re-encoded.</p>
+          <p>
+	    *** POTENTIAL INCOMPATIBILITY ***</p>
+          <p>
+	    Own Id: OTP-14621 Aux Id: ERL-480, ERL-481 </p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    Extend crypto:sign, crypto:verify, public_key:sign and
+	    public_key:verify with:</p>
+          <p>
+	    * support for RSASSA-PS padding for signatures and for
+	    saltlength setting<br/> * X9.31 RSA padding.<br/> * sha,
+	    sha224, sha256, sha384, and sha512 for dss signatures as
+	    mentioned in NIST SP 800-57 Part 1.<br/> * ripemd160 to
+	    be used for rsa signatures.</p>
+          <p>
+	    This is a manual merge of half of the pull request 838 by
+	    potatosalad from Sept 2015.</p>
+          <p>
+	    Own Id: OTP-13704 Aux Id: PR838 </p>
+        </item>
+        <item>
+          <p>
+	    Add API function pkix_test_data/1 for facilitating
+	    automated testing. This is useful for applications that
+	    preform X509-certifcate path validation of so called
+	    certificate chains, such as TLS.</p>
+          <p>
+	    Own Id: OTP-14181</p>
+        </item>
+        <item>
+          <p>
+	    Improved error propagation and reports</p>
+          <p>
+	    Own Id: OTP-14236</p>
+        </item>
+        <item>
+          <p>
+	    RSAPrivateKey version is set to 'two-prime' instead of
+	    using the underlying enumeration value directly.</p>
+          <p>
+	    Own Id: OTP-14534</p>
+        </item>
+        <item>
+          <p>
+	    Deprecated function <c>crypto:rand_uniform/2</c> is
+	    replaced by <c>rand:uniform/1</c>.</p>
+          <p>
+	    Own Id: OTP-14608</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Public_Key 1.4.1</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/public_key/doc/src/part_notes.xml b/lib/public_key/doc/src/part_notes.xml
deleted file mode 100644
index 17f06d14f5..0000000000
--- a/lib/public_key/doc/src/part_notes.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2008</year>
-      <year>2016</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
- 
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>public_key Release Notes</title>
-    <prepared>Ingela Anderton Andin</prepared>
-    <docno></docno>
-    <date>2008-01-22</date>
-    <rev></rev>
-  </header>
-  <description>
-    <p></p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
-
diff --git a/lib/public_key/doc/src/public_key.xml b/lib/public_key/doc/src/public_key.xml
index 942203bd12..5230cef496 100644
--- a/lib/public_key/doc/src/public_key.xml
+++ b/lib/public_key/doc/src/public_key.xml
@@ -119,6 +119,10 @@
       <tag><c>ec_private_key() =</c></tag>
       <item><p><c>#'ECPrivateKey'{}</c></p></item>
 
+      <tag><c>key_params() =</c></tag>
+      <item><p> #'DHParameter'{} |  {namedCurve, oid()} |  #'ECParameters'{} 
+      | {rsa, Size::integer(), PubExp::integer()} </p></item>      
+
       <tag><c>public_crypt_options() =</c></tag>
       <item><p><c>[{rsa_pad, rsa_padding()}]</c></p></item>
 
@@ -347,8 +351,7 @@
     <name>generate_key(Params) -> {Public::binary(), Private::binary()}  | #'ECPrivateKey'{} | #'RSAPrivateKey'{}</name>
     <fsummary>Generates a new keypair.</fsummary>
     <type>
-      <v>Params = #'DHParameter'{} |  {namedCurve, oid()} |  #'ECParameters'{} 
-      | {rsa, Size::integer(), PubExp::integer} </v>
+      <v>Params = key_params()</v>
     </type>
   <desc>
     <p>Generates a new keypair. Note that except for Diffie-Hellman
@@ -769,6 +772,85 @@ fun(#'DistributionPoint'{}, #'CertificateList'{},
     </desc>
   </func>
 
+  <func>
+    <name>pkix_test_data(Options) -> Config </name>
+    <fsummary>Creates certificate test data.</fsummary>
+    <type>
+      <v>Options = #{chain_type() := chain_opts()} </v>
+      <d>Options for ROOT, Intermediate and Peer certs</d>
+      
+      <v>chain_type() = server_chain | client_chain </v>
+
+      <v>chain_opts() = #{chain_end() := [cert_opt()],
+          intermediates => [[cert_opt()]]}</v>
+      <d>A valid chain must have at least a ROOT and a peer cert</d>
+
+      <v>chain_end() = root | peer </v>
+
+      <v>cert_opt() = {Key, Value}</v>
+      <d>For available options see <seealso marker="#cert_opt"> cert_opt()</seealso> below.</d>
+
+      <v>Config = #{server_config := [conf_opt()],
+      client_config := [conf_opt()]}</v>
+
+      <v>conf_opt() = {cert, der_encoded()} | {key, der_encoded()} |{cacerts, [der_encoded()]}</v>
+      <d>This is a subset of the type <seealso marker="ssl:ssl#type-ssloption"> ssl:ssl_option()</seealso> </d>
+    </type>
+    
+    <desc>
+      <p>Creates certificate test data to facilitate automated testing
+      of applications using X509-certificates often through
+      SSL/TLS. The test data can be used when you have control
+      over both the client and the server in a test scenario.
+      </p>
+      
+      <p> The <marker id="cert_opt"/> cert_opt() type consists of the following options: </p>
+      <taglist>
+	<tag> {digest, digest_type()}</tag>
+	<item><p>Hash algorithm to be used for
+	signing the certificate together with the key option. Defaults to sha that is sha1.
+	</p></item>
+	<tag> {key, key_params() | private_key()}</tag>
+	<item><p>Parameters to be used to call public_key:generate_key/1, to generate a key, or an existing
+	key. Defaults to generating an ECDSA key. Note this could fail if Erlang/OTP is compiled with a very old
+	cryptolib.</p></item>
+	<tag> {validity, {From::erlang:timestamp(), To::erlang:timestamp()}} </tag>
+	<item><p>The validity period of the certificate.</p></item>
+	<tag> {extensions, [#'Extension'{}]}</tag>
+	<item><p> Extensions to include in the certificate.</p>
+	      
+	  <p>Default extensions included in CA certificates if not
+	  otherwise specified are: </p>
+	  <code>[#'Extension'{extnID = ?'id-ce-keyUsage',
+              extnValue = [keyCertSign, cRLSign],
+              critical = false},
+#'Extension'{extnID = ?'id-ce-basicConstraints',
+             extnValue = #'BasicConstraints'{cA = true},
+             critical = true}]
+	  </code>
+
+	  <p>Default extensions included in the server peer cert if not
+	  otherwise specified are: </p>
+	  <code>[#'Extension'{extnID = ?'id-ce-keyUsage',
+              extnValue = [digitalSignature, keyAgreement],
+              critical = false},
+#'Extension'{extnID = ?'id-ce-subjectAltName',
+             extnValue = [{dNSName, Hostname}],
+             critical = false}]
+	  </code>
+	  <p>Hostname is the result of calling net_adm:localhost() in the Erlang node
+	  where this funcion is called.
+	  </p></item>
+
+	</taglist>
+	  
+	<note><p>
+	Note that the generated certificates and keys does not provide a formally correct PKIX-trust-chain 
+	and they can not be used to achieve real security. This function is provided for testing purposes only.
+</p></note>
+    </desc>
+  </func>
+  
   <func>  
     <name>pkix_verify(Cert, Key) -> boolean()</name>
     <fsummary>Verifies PKIX x.509 certificate signature.</fsummary>
@@ -789,19 +871,20 @@ fun(#'DistributionPoint'{}, #'CertificateList'{},
     <type>
       <v>Cert = der_encoded() | #'OTPCertificate'{} </v>
       <v>ReferenceIDs = [ RefID ]</v>
-      <v>RefID = {IdType,string()}</v>
-      <v>IdType = dns_id | srv_id | uri_id</v>
+      <v>RefID = {dns_id,string()} | {srv_id,string()} | {uri_id,string()} | {ip,inet:ip_address()|string()} | {OtherRefID,term()}}</v>
+      <v>OtherRefID = atom()</v>
       <v>Opts = [ PvhOpt() ]</v>
       <v>PvhOpt = [MatchOpt | FailCallBackOpt | FqdnExtractOpt]</v>
-      <v>MatchOpt = {fun(RefId | FQDN::string(), PresentedID) -> boolean() | default}</v>
-      <v>PresentedID = {dNSName,string()} | {uniformResourceIdentifier,string()}</v>
+      <v>MatchOpt = {match_fun, fun(RefId | FQDN::string(), PresentedID) -> boolean() | default}</v>
+      <v>PresentedID = {dNSName,string()} | {uniformResourceIdentifier,string() | {iPAddress,list(byte())} | {OtherPresId,term()}}</v>
+      <v>OtherPresID = atom()</v>
       <v>FailCallBackOpt = {fail_callback, fun(#'OTPCertificate'{}) -> boolean()}</v>
       <v>FqdnExtractOpt = {fqdn_fun, fun(RefID) -> FQDN::string() | default | undefined}</v>
     </type>
     <desc>
       <p>This function checks that the <i>Presented Identifier</i> (e.g hostname) in a peer certificate
-      conforms with the Expected Identifier that the client wants to connect to.
-      This functions is intended to be added as an extra client check to the peer certificate when performing
+      is in agreement with the <i>Reference Identifier</i> that the client expects to be connected to.
+      The function is intended to be added as an extra client check of the peer certificate when performing
       <seealso marker="public_key:public_key#pkix_path_validation-3">public_key:pkix_path_validation/3</seealso>
       </p>
       <p>See <url href="https://tools.ietf.org/html/rfc6125">RFC 6125</url>
@@ -811,6 +894,12 @@ fun(#'DistributionPoint'{}, #'CertificateList'{},
       <seealso marker="using_public_key#verify_hostname_examples">code examples</seealso>
       describes this function more detailed.
       </p>
+      <p>The <c>{OtherRefId,term()}</c> is defined by the user and is passed to the <c>match_fun</c>, if defined.
+      If that term is a binary, it will be converted to a string.
+      </p>
+      <p>The <c>ip</c> Reference ID takes an <seealso marker="inet:inet#type-ip_address">inet:ip_address()</seealso>
+      or an ip address in string format (E.g "10.0.1.1" or "1234::5678:9012") as second element.
+      </p>
     </desc>
   </func>
 
diff --git a/lib/public_key/doc/src/public_key_records.xml b/lib/public_key/doc/src/public_key_records.xml
index d34f3ed9a3..9ebdbb244d 100644
--- a/lib/public_key/doc/src/public_key_records.xml
+++ b/lib/public_key/doc/src/public_key_records.xml
@@ -70,10 +70,10 @@
       <p><c>| {dNSName, string()}</c></p>
       <p><c>| {x400Address, string()}</c></p>
       <p><c>| {directoryName, {rdnSequence, [#AttributeTypeAndValue'{}]}}</c></p>
-      <p><c>| {eidPartyName, special_string()}</c></p>
-      <p><c>| {eidPartyName, special_string(), special_string()}</c></p>
+      <p><c>| {ediPartyName, special_string()}</c></p>
+      <p><c>| {ediPartyName, special_string(), special_string()}</c></p>
       <p><c>| {uniformResourceIdentifier, string()}</c></p>
-      <p><c>| {ipAddress, string()}</c></p>
+      <p><c>| {iPAddress, string()}</c></p>
       <p><c>| {registeredId, oid()}</c></p>
       <p><c>| {otherName, term()}</c></p>
       </item>
@@ -171,9 +171,9 @@
 #'ECPrivateKey'{
           version,       % integer()
 	  privateKey,    % binary()  
-	  parameters,    % der_encoded() - {'EcpkParameters', #'ECParameters'{}} |
-	                                   {'EcpkParameters', {namedCurve, oid()}} |
-	                                   {'EcpkParameters', 'NULL'} % Inherited by CA
+          parameters,    % {ecParameters, #'ECParameters'{}} |
+                         % {namedCurve, Oid::tuple()} |
+                         % {implicitlyCA, 'NULL'}
 	  publicKey      % bitstring()
 	  }.
 	  
diff --git a/lib/public_key/src/pubkey_cert.erl b/lib/public_key/src/pubkey_cert.erl
index f45f2c2e9a..76fd0f8133 100644
--- a/lib/public_key/src/pubkey_cert.erl
+++ b/lib/public_key/src/pubkey_cert.erl
@@ -32,12 +32,25 @@
 	 is_issuer/2, issuer_id/2, distribution_points/1, 
 	 is_fixed_dh_cert/1, verify_data/1, verify_fun/4, 
 	 select_extension/2, match_name/3,
-	 extensions_list/1, cert_auth_key_id/1, time_str_2_gregorian_sec/1]).
+	 extensions_list/1, cert_auth_key_id/1, time_str_2_gregorian_sec/1,
+         gen_test_certs/1]).
 
 -define(NULL, 0).
- 
+
+-export_type([chain_opts/0, test_config/0]).
+
+-type cert_opt()  :: {digest, public_key:digest_type()} | 
+                     {key, public_key:key_params() | public_key:private_key()} | 
+                     {validity, {From::erlang:timestamp(), To::erlang:timestamp()}} |
+                     {extensions, [#'Extension'{}]}.
+-type chain_end()   :: root | peer.
+-type chain_opts()  :: #{chain_end() := [cert_opt()],  intermediates =>  [[cert_opt()]]}.
+-type conf_opt()    :: {cert, public_key:der_encoded()} | 
+                       {key,  public_key:der_encoded()} |
+                       {cacerts, [public_key:der_encoded()]}.
+-type test_config() :: #{server_config := [conf_opt()],  client_config :=  [conf_opt()]}.
 %%====================================================================
-%% Internal application API
+%% Internal application APIu
 %%====================================================================
 
 %%--------------------------------------------------------------------
@@ -417,6 +430,31 @@ match_name(Fun, Name, PermittedName, [Head | Tail]) ->
 	false ->
 	    match_name(Fun, Name, Head, Tail)
     end.
+%%%
+-spec gen_test_certs(#{server_chain:= chain_opts(), client_chain:= chain_opts()}) -> test_config().
+ 
+%% Generates server and and client configuration for testing 
+%% purposes. All certificate options have default values
+gen_test_certs(#{client_chain := #{root := ClientRootConf,
+                                   intermediates := ClientCAs,
+                                   peer := ClientPeer}, 
+                 server_chain := 
+                     #{root := ServerRootConf,
+                       intermediates := ServerCAs,
+                       peer := ServerPeer}}) ->
+    SRootKey = gen_key(proplists:get_value(key, ServerRootConf, default_key_gen())),
+    CRootKey = gen_key(proplists:get_value(key, ClientRootConf, default_key_gen())),
+    ServerRoot = root_cert("server", SRootKey, ClientRootConf),
+    ClientRoot = root_cert("client", CRootKey, ServerRootConf),
+    
+    [{ServerDERCert, ServerDERKey} | ServerCAsKeys] = config(server, ServerRoot, 
+                                                       SRootKey, lists:reverse([ServerPeer | lists:reverse(ServerCAs)])),
+    [{ClientDERCert, ClientDERKey} | ClientCAsKeys] = config(client, ClientRoot, 
+                                                       CRootKey, lists:reverse([ClientPeer | lists:reverse(ClientCAs)])),
+    ServerDERCA = ca_config(ClientRoot, ServerCAsKeys),
+    ClientDERCA = ca_config(ServerRoot, ClientCAsKeys),
+    #{server_config => [{cert, ServerDERCert}, {key, ServerDERKey}, {cacerts, ServerDERCA}], 
+      client_config => [{cert, ClientDERCert}, {key, ClientDERKey}, {cacerts, ClientDERCA}]}.
 
 %%--------------------------------------------------------------------
 %%% Internal functions
@@ -1064,3 +1102,219 @@ missing_basic_constraints(OtpCert, SelfSigned, ValidationState, VerifyFun, UserS
 						       Len - 1},
 	     UserState}
     end.
+
+ gen_key(KeyGen) ->
+     case is_key(KeyGen) of
+         true ->
+             KeyGen;
+         false ->
+             public_key:generate_key(KeyGen)
+     end.
+
+is_key(#'DSAPrivateKey'{}) ->
+    true;
+is_key(#'RSAPrivateKey'{}) ->
+    true;
+is_key(#'ECPrivateKey'{}) ->
+    true;
+is_key(_) ->
+    false.
+
+root_cert(Role, PrivKey, Opts) ->
+     TBS = cert_template(),
+     Issuer = issuer("root", Role, " ROOT CA"),
+     OTPTBS = TBS#'OTPTBSCertificate'{
+                signature = sign_algorithm(PrivKey, Opts),
+                issuer = Issuer,
+                validity = validity(Opts),  
+                subject = Issuer,
+                subjectPublicKeyInfo = public_key(PrivKey),
+                extensions = extensions(Role, ca, Opts)
+               },
+     public_key:pkix_sign(OTPTBS, PrivKey).
+
+cert_template() ->
+    #'OTPTBSCertificate'{
+       version = v3,              
+       serialNumber = trunc(rand:uniform()*100000000)*10000 + 1,
+       issuerUniqueID = asn1_NOVALUE,       
+       subjectUniqueID = asn1_NOVALUE
+      }.
+issuer(Contact, Role, Name) ->
+  subject(Contact, Role ++ Name).
+
+subject(Contact, Name) ->
+    Opts = [{email, Contact ++ "@example.org"},
+	    {name,  Name},
+	    {city, "Stockholm"},
+	    {country, "SE"},
+	    {org, "erlang"},
+	    {org_unit, "automated testing"}],
+    subject(Opts).
+
+subject(SubjectOpts) when is_list(SubjectOpts) ->
+    Encode = fun(Opt) ->
+		     {Type,Value} = subject_enc(Opt),
+		     [#'AttributeTypeAndValue'{type=Type, value=Value}]
+	     end,
+    {rdnSequence, [Encode(Opt) || Opt <- SubjectOpts]}.
+
+subject_enc({name,  Name}) ->       
+    {?'id-at-commonName', {printableString, Name}};
+subject_enc({email, Email}) ->      
+    {?'id-emailAddress', Email};
+subject_enc({city,  City}) ->       
+    {?'id-at-localityName', {printableString, City}};
+subject_enc({org, Org}) ->          
+    {?'id-at-organizationName', {printableString, Org}};
+subject_enc({org_unit, OrgUnit}) -> 
+    {?'id-at-organizationalUnitName', {printableString, OrgUnit}};
+subject_enc({country, Country}) ->  
+    {?'id-at-countryName', Country}.
+
+validity(Opts) ->
+    DefFrom0 = calendar:gregorian_days_to_date(calendar:date_to_gregorian_days(date())-1),
+    DefTo0   = calendar:gregorian_days_to_date(calendar:date_to_gregorian_days(date())+7),
+    {DefFrom, DefTo} = proplists:get_value(validity, Opts, {DefFrom0, DefTo0}),
+    Format = fun({Y,M,D}) -> 
+                     lists:flatten(io_lib:format("~w~2..0w~2..0w000000Z",[Y,M,D])) 
+             end,
+    #'Validity'{notBefore={generalTime, Format(DefFrom)},
+		notAfter ={generalTime, Format(DefTo)}}.
+
+sign_algorithm(#'RSAPrivateKey'{}, Opts) ->
+    Type = rsa_digest_oid(proplists:get_value(digest, Opts, sha1)),
+    #'SignatureAlgorithm'{algorithm  = Type,
+                          parameters = 'NULL'};
+sign_algorithm(#'DSAPrivateKey'{p=P, q=Q, g=G}, _Opts) ->
+    #'SignatureAlgorithm'{algorithm  = ?'id-dsa-with-sha1',
+                          parameters = {params,#'Dss-Parms'{p=P, q=Q, g=G}}};
+sign_algorithm(#'ECPrivateKey'{parameters = Parms}, Opts) ->
+    Type = ecdsa_digest_oid(proplists:get_value(digest, Opts, sha1)),
+    #'SignatureAlgorithm'{algorithm  = Type,
+                          parameters = Parms}.
+rsa_digest_oid(sha1) ->
+    ?'sha1WithRSAEncryption';
+rsa_digest_oid(sha512) ->
+    ?'sha512WithRSAEncryption';
+rsa_digest_oid(sha384) ->
+    ?'sha384WithRSAEncryption';
+rsa_digest_oid(sha256) ->
+    ?'sha256WithRSAEncryption';
+rsa_digest_oid(md5) ->
+   ?'md5WithRSAEncryption'.
+
+ecdsa_digest_oid(sha1) ->
+    ?'ecdsa-with-SHA1';
+ecdsa_digest_oid(sha512) ->
+    ?'ecdsa-with-SHA512';
+ecdsa_digest_oid(sha384) ->
+    ?'ecdsa-with-SHA384';
+ecdsa_digest_oid(sha256) ->
+    ?'ecdsa-with-SHA256'.
+
+config(Role, Root, Key, Opts) ->
+   cert_chain(Role, Root, Key, Opts).
+
+cert_chain(Role, Root, RootKey, Opts) ->
+    cert_chain(Role, Root, RootKey, Opts, 0, []).
+
+cert_chain(Role, IssuerCert, IssuerKey, [PeerOpts], _, Acc) ->
+    Key = gen_key(proplists:get_value(key, PeerOpts, default_key_gen())),
+    Cert = cert(Role, public_key:pkix_decode_cert(IssuerCert, otp), 
+                IssuerKey, Key, "admin", " Peer cert", PeerOpts, peer),
+    [{Cert, encode_key(Key)}, {IssuerCert, encode_key(IssuerKey)} | Acc];
+cert_chain(Role, IssuerCert, IssuerKey, [CAOpts | Rest], N, Acc) ->
+    Key = gen_key(proplists:get_value(key, CAOpts, default_key_gen())),
+    Cert = cert(Role, public_key:pkix_decode_cert(IssuerCert, otp), IssuerKey, Key, "webadmin", 
+                " Intermidiate CA " ++ integer_to_list(N), CAOpts, ca),
+    cert_chain(Role, Cert, Key, Rest, N+1, [{IssuerCert, encode_key(IssuerKey)} | Acc]).
+
+cert(Role, #'OTPCertificate'{tbsCertificate = #'OTPTBSCertificate'{subject = Issuer}}, 
+     PrivKey, Key, Contact, Name, Opts, Type) ->
+    TBS = cert_template(),
+    OTPTBS = TBS#'OTPTBSCertificate'{
+               signature = sign_algorithm(PrivKey, Opts),
+               issuer =  Issuer,
+               validity = validity(Opts),  
+               subject = subject(Contact, atom_to_list(Role) ++ Name),
+               subjectPublicKeyInfo = public_key(Key),
+               extensions = extensions(Role, Type, Opts)
+               
+              },
+    public_key:pkix_sign(OTPTBS, PrivKey).
+
+ca_config(Root, CAsKeys) ->
+    [Root | [CA || {CA, _}  <- CAsKeys]].
+
+default_key_gen() ->
+    case crypto:ec_curves() of
+        [] ->
+            {rsa, 2048, 17};
+        [Curve |_] ->
+            Oid = pubkey_cert_records:namedCurves(Curve),
+            {namedCurve, Oid}
+    end.
+
+public_key(#'RSAPrivateKey'{modulus=N, publicExponent=E}) ->
+    Public = #'RSAPublicKey'{modulus=N, publicExponent=E},
+    Algo = #'PublicKeyAlgorithm'{algorithm= ?rsaEncryption, parameters='NULL'},
+    #'OTPSubjectPublicKeyInfo'{algorithm = Algo,
+			       subjectPublicKey = Public};
+public_key(#'DSAPrivateKey'{p=P, q=Q, g=G, y=Y}) ->
+    Algo = #'PublicKeyAlgorithm'{algorithm= ?'id-dsa', 
+				 parameters={params, #'Dss-Parms'{p=P, q=Q, g=G}}},
+    #'OTPSubjectPublicKeyInfo'{algorithm = Algo, subjectPublicKey = Y};
+public_key(#'ECPrivateKey'{version = _Version,
+			  privateKey = _PrivKey,
+			  parameters = Params,
+			  publicKey = PubKey}) ->
+    Algo = #'PublicKeyAlgorithm'{algorithm= ?'id-ecPublicKey', parameters=Params},
+    #'OTPSubjectPublicKeyInfo'{algorithm = Algo,
+			       subjectPublicKey = #'ECPoint'{point = PubKey}}.
+
+extensions(Role, Type, Opts) ->
+    Exts  = proplists:get_value(extensions, Opts, []),
+    add_default_extensions(Role, Type, Exts).
+
+add_default_extensions(_, ca, Exts) ->
+    Default = [#'Extension'{extnID = ?'id-ce-keyUsage',
+                            extnValue = [keyCertSign, cRLSign],
+                            critical = false},
+               #'Extension'{extnID = ?'id-ce-basicConstraints',
+                            extnValue = #'BasicConstraints'{cA = true},
+                            critical = true}],
+    add_default_extensions(Default, Exts);
+
+add_default_extensions(server, peer, Exts) ->
+    Hostname = net_adm:localhost(),
+    Default = [#'Extension'{extnID = ?'id-ce-keyUsage',
+                            extnValue = [digitalSignature, keyAgreement],
+                            critical = false},
+               #'Extension'{extnID = ?'id-ce-subjectAltName',
+                            extnValue = [{dNSName, Hostname}],
+                            critical = false}
+              ],
+    add_default_extensions(Default, Exts);
+    
+add_default_extensions(_, peer, Exts) ->
+    Exts.
+
+add_default_extensions(Defaults0, Exts) ->
+    Defaults = lists:filtermap(fun(#'Extension'{extnID = ID} = Ext) ->
+                                       case lists:keymember(ID, 2, Exts) of 
+                                           true -> 
+                                               false; 
+                                           false -> 
+                                               {true, Ext} 
+                                       end 
+                               end, Defaults0),
+    Exts ++ Defaults.
+
+encode_key(#'RSAPrivateKey'{} = Key) ->
+    {'RSAPrivateKey', public_key:der_encode('RSAPrivateKey', Key)};
+encode_key(#'ECPrivateKey'{} = Key) ->
+    {'ECPrivateKey', public_key:der_encode('ECPrivateKey', Key)};
+encode_key(#'DSAPrivateKey'{} = Key) ->
+    {'DSAPrivateKey', public_key:der_encode('DSAPrivateKey', Key)}.
+
diff --git a/lib/public_key/src/pubkey_pbe.erl b/lib/public_key/src/pubkey_pbe.erl
index 0243bcaa82..e89e16f120 100644
--- a/lib/public_key/src/pubkey_pbe.erl
+++ b/lib/public_key/src/pubkey_pbe.erl
@@ -222,7 +222,8 @@ pbe_pad(Data, {#'PBEParameter'{}, _}) ->
 pbe_pad(Data, #'PBES2-params'{}) ->
     pbe_pad(Data);
 pbe_pad(Data, _) ->
-    Data.
+pbe_pad(Data).%%    Data.
+
 
 pbe_pad(Data) ->
     N = 8 - (erlang:byte_size(Data) rem 8), 
diff --git a/lib/public_key/src/pubkey_ssh.erl b/lib/public_key/src/pubkey_ssh.erl
index 9bda76d670..a7d018e440 100644
--- a/lib/public_key/src/pubkey_ssh.erl
+++ b/lib/public_key/src/pubkey_ssh.erl
@@ -29,7 +29,15 @@
 	]).
 
 -define(UINT32(X), X:32/unsigned-big-integer).
--define(STRING(X), ?UINT32((size(X))), (X)/binary).
+-define(STRING(X), ?UINT32((byte_size(X))), (X)/binary).
+
+-define(DEC_BIN(X,Len),   ?UINT32(Len), X:Len/binary ).
+-define(DEC_MPINT(I,Len), ?DEC_INT(I,Len) ).
+-define(DEC_INT(I,Len),   ?UINT32(Len), I:Len/big-signed-integer-unit:8 ).
+
+-define(Empint(X),  (mpint(X))/binary ).
+-define(Estring(X), (string(X))/binary ).
+
 
 %% Max encoded line length is 72, but conformance examples use 68
 %% Comment from rfc 4716: "The following are some examples of public
@@ -47,12 +55,12 @@
 %% Description: Decodes a ssh file-binary.
 %%--------------------------------------------------------------------
 decode(Bin, public_key)->
-    case binary:match(Bin, begin_marker()) of
-	nomatch ->
-	    openssh_decode(Bin, openssh_public_key);
-	_ ->
-	    rfc4716_decode(Bin)
-    end;
+    PKtype =
+        case binary:match(Bin, begin_marker()) of
+            nomatch -> openssh_public_key;
+            _ -> rfc4716_public_key
+        end,
+    decode(Bin, PKtype);
 decode(Bin, rfc4716_public_key) ->
     rfc4716_decode(Bin);
 decode(Bin, ssh2_pubkey) ->
@@ -79,7 +87,9 @@ dh_gex_group(Min, N, Max, undefined) ->
 dh_gex_group(Min, N, Max, Groups) ->
     case select_by_keylen(Min-10, N, Max+10, Groups) of
 	{ok,{Sz,GPs}} ->
-	    {ok, {Sz,lists:nth(crypto:rand_uniform(1, 1+length(GPs)), GPs)}};
+            Rnd = rand:uniform( length(GPs) ),
+            %% 1 =< Rnd =< length(GPs)
+	    {ok, {Sz, lists:nth(Rnd,GPs)}};
 	Other ->
 	    Other
     end.
@@ -162,26 +172,8 @@ join_entry([Line | Lines], Entry) ->
     join_entry(Lines, [Line | Entry]).
 
 
-rfc4716_pubkey_decode(<<?UINT32(Len), Type:Len/binary,
-			?UINT32(SizeE), E:SizeE/binary,
-			?UINT32(SizeN), N:SizeN/binary>>) when Type == <<"ssh-rsa">> ->
-    #'RSAPublicKey'{modulus = erlint(SizeN, N),
-		    publicExponent = erlint(SizeE, E)};
-
-rfc4716_pubkey_decode(<<?UINT32(Len), Type:Len/binary,
-			?UINT32(SizeP), P:SizeP/binary,
-			?UINT32(SizeQ), Q:SizeQ/binary,
-			?UINT32(SizeG), G:SizeG/binary,
-			?UINT32(SizeY), Y:SizeY/binary>>) when Type == <<"ssh-dss">> ->
-    {erlint(SizeY, Y),
-     #'Dss-Parms'{p = erlint(SizeP, P),
-		  q = erlint(SizeQ, Q),
-		  g = erlint(SizeG, G)}};
-rfc4716_pubkey_decode(<<?UINT32(Len), ECDSA_SHA2_etc:Len/binary,
-			?UINT32(SizeId), Id:SizeId/binary,
-			?UINT32(SizeQ), Q:SizeQ/binary>>) ->
-    <<"ecdsa-sha2-", Id/binary>> = ECDSA_SHA2_etc,
-    {#'ECPoint'{point = Q}, {namedCurve,public_key:ssh_curvename2oid(Id)}}.
+rfc4716_pubkey_decode(BinKey) -> ssh2_pubkey_decode(BinKey).
+
 
 openssh_decode(Bin, FileType) ->
     Lines = binary:split(Bin, <<"\n">>, [global]),
@@ -265,18 +257,14 @@ decode_comment(Comment) ->
 
 openssh_pubkey_decode(Type,  Base64Enc) ->
     try
-	ssh2_pubkey_decode(Type,  base64:mime_decode(Base64Enc))
+        <<?DEC_BIN(Type,_TL), Bin/binary>> = base64:mime_decode(Base64Enc),
+	ssh2_pubkey_decode(Type,  Bin)
     catch
 	_:_ ->
 	    {Type, base64:mime_decode(Base64Enc)}
     end.
 
 
-erlint(MPIntSize, MPIntValue) ->
-    Bits= MPIntSize * 8,
-    <<Integer:Bits/integer>> = MPIntValue,
-    Integer.
-
 ssh1_rsa_pubkey_decode(MBin, EBin) ->
     #'RSAPublicKey'{modulus = integer_decode(MBin),
 		    publicExponent = integer_decode(EBin)}.
@@ -409,71 +397,37 @@ comma_list_encode([Option | Rest], Acc) ->
 
 
 ssh2_pubkey_encode(#'RSAPublicKey'{modulus = N, publicExponent = E}) ->
-    ssh2_pubkey_encode({#'RSAPublicKey'{modulus = N, publicExponent = E}, 'ssh-rsa'});
-
-ssh2_pubkey_encode({Key, 'rsa-sha2-256'}) -> ssh2_pubkey_encode({Key, 'ssh-rsa'});
-ssh2_pubkey_encode({Key, 'rsa-sha2-512'}) -> ssh2_pubkey_encode({Key, 'ssh-rsa'});
-ssh2_pubkey_encode({#'RSAPublicKey'{modulus = N, publicExponent = E}, SignAlg}) ->
-    SignAlgName = list_to_binary(atom_to_list(SignAlg)),
-    StrLen = size(SignAlgName),
-    EBin = mpint(E),
-    NBin = mpint(N),
-    <<?UINT32(StrLen), SignAlgName:StrLen/binary,
-      EBin/binary,
-      NBin/binary>>;
-ssh2_pubkey_encode({{_,#'Dss-Parms'{}}=Key, _}) ->
-    ssh2_pubkey_encode(Key);
+    <<?STRING(<<"ssh-rsa">>), ?Empint(E), ?Empint(N)>>;
 ssh2_pubkey_encode({Y,  #'Dss-Parms'{p = P, q = Q, g = G}}) ->
-    TypeStr = <<"ssh-dss">>,
-    StrLen = size(TypeStr),
-    PBin = mpint(P),
-    QBin = mpint(Q),
-    GBin = mpint(G),
-    YBin = mpint(Y),
-    <<?UINT32(StrLen), TypeStr:StrLen/binary,
-      PBin/binary,
-      QBin/binary,
-      GBin/binary,
-      YBin/binary>>;
-ssh2_pubkey_encode({{#'ECPoint'{},_}=Key, _}) ->
-    ssh2_pubkey_encode(Key);
+    <<?STRING(<<"ssh-dss">>), ?Empint(P), ?Empint(Q), ?Empint(G), ?Empint(Y)>>;
 ssh2_pubkey_encode(Key={#'ECPoint'{point = Q}, {namedCurve,OID}}) ->
-    TypeStr = key_type(Key),
-    StrLen = size(TypeStr),
-    IdB = public_key:oid2ssh_curvename(OID),
-    <<?UINT32(StrLen), TypeStr:StrLen/binary,
-      (string(IdB))/binary,
-      (string(Q))/binary>>.
+    Curve = public_key:oid2ssh_curvename(OID),
+    <<?STRING(key_type(Key)), ?Estring(Curve), ?Estring(Q)>>.
 
 
-ssh2_pubkey_decode(Bin = <<?UINT32(Len), Type:Len/binary, _/binary>>) ->
+ssh2_pubkey_decode(<<?DEC_BIN(Type,_TL), Bin/binary>>) ->
     ssh2_pubkey_decode(Type, Bin).
 
-ssh2_pubkey_decode(<<"rsa-sha2-256">>, Bin) -> ssh2_pubkey_decode(<<"ssh-rsa">>, Bin);
-ssh2_pubkey_decode(<<"rsa-sha2-512">>, Bin) -> ssh2_pubkey_decode(<<"ssh-rsa">>, Bin);
+%% ssh2_pubkey_decode(<<"rsa-sha2-256">>, Bin) -> ssh2_pubkey_decode(<<"ssh-rsa">>, Bin);
+%% ssh2_pubkey_decode(<<"rsa-sha2-512">>, Bin) -> ssh2_pubkey_decode(<<"ssh-rsa">>, Bin);
 ssh2_pubkey_decode(<<"ssh-rsa">>,
-		   <<?UINT32(Len),   _:Len/binary,
-		     ?UINT32(SizeE), E:SizeE/binary,
-		     ?UINT32(SizeN), N:SizeN/binary>>) ->
-    #'RSAPublicKey'{modulus = erlint(SizeN, N),
-		    publicExponent = erlint(SizeE, E)};
+                   <<?DEC_INT(E, _EL),
+                     ?DEC_INT(N, _NL)>>) ->
+    #'RSAPublicKey'{modulus = N,
+		    publicExponent = E};
 
 ssh2_pubkey_decode(<<"ssh-dss">>,
-		   <<?UINT32(Len),   _:Len/binary,
-		     ?UINT32(SizeP), P:SizeP/binary,
-		     ?UINT32(SizeQ), Q:SizeQ/binary,
-		     ?UINT32(SizeG), G:SizeG/binary,
-		     ?UINT32(SizeY), Y:SizeY/binary>>) ->
-    {erlint(SizeY, Y),
-     #'Dss-Parms'{p = erlint(SizeP, P),
-		  q = erlint(SizeQ, Q),
-		  g = erlint(SizeG, G)}};
+                   <<?DEC_INT(P, _PL),
+                     ?DEC_INT(Q, _QL),
+                     ?DEC_INT(G, _GL),
+                     ?DEC_INT(Y, _YL)>>) ->
+    {Y, #'Dss-Parms'{p = P,
+                     q = Q,
+                     g = G}};
 
 ssh2_pubkey_decode(<<"ecdsa-sha2-",Id/binary>>,
-		   <<?UINT32(Len), ECDSA_SHA2_etc:Len/binary,
-		     ?UINT32(SizeId), Id:SizeId/binary,
-		     ?UINT32(SizeQ), Q:SizeQ/binary>>) ->
-    <<"ecdsa-sha2-", Id/binary>> = ECDSA_SHA2_etc,
+                   <<?DEC_BIN(Id, _IL),
+                     ?DEC_BIN(Q, _QL)>>) ->
     {#'ECPoint'{point = Q}, {namedCurve,public_key:ssh_curvename2oid(Id)}}.
 
 
@@ -573,17 +527,16 @@ mpint(X) -> mpint_pos(X).
 
 mpint_neg(X) ->
     Bin = int_to_bin_neg(X, []),
-    Sz = byte_size(Bin),
-    <<?UINT32(Sz), Bin/binary>>.
+    <<?STRING(Bin)>>.
     
 mpint_pos(X) ->
     Bin = int_to_bin_pos(X, []),
     <<MSB,_/binary>> = Bin,
-    Sz = byte_size(Bin),
     if MSB band 16#80 == 16#80 ->
-	    <<?UINT32((Sz+1)), 0, Bin/binary>>;
+            B = << 0, Bin/binary>>,
+	    <<?STRING(B)>>;
        true ->
-	    <<?UINT32(Sz), Bin/binary>>
+	    <<?STRING(Bin)>>
     end.
 
 int_to_bin_pos(0,Ds=[_|_]) ->
@@ -600,7 +553,8 @@ int_to_bin_neg(X,Ds) ->
 string(X) when is_binary(X) ->
     << ?STRING(X) >>;
 string(X) ->
-    << ?STRING(list_to_binary(X)) >>.
+    B = list_to_binary(X),
+    << ?STRING(B) >>.
 
 is_ssh_curvename(Id) -> try public_key:ssh_curvename2oid(Id) of _ -> true
 			catch _:_  -> false
diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl
index c2060c144c..6788c1ee92 100644
--- a/lib/public_key/src/public_key.erl
+++ b/lib/public_key/src/public_key.erl
@@ -58,11 +58,13 @@
 	 pkix_match_dist_point/2,
 	 pkix_crl_verify/2,
 	 pkix_crl_issuer/1,
-	 short_name_hash/1
+	 short_name_hash/1,
+         pkix_test_data/1
 	]).
 
 -export_type([public_key/0, private_key/0, pem_entry/0,
-	      pki_asn1_type/0, asn1_type/0, ssh_file/0, der_encoded/0]).
+	      pki_asn1_type/0, asn1_type/0, ssh_file/0, der_encoded/0,
+              key_params/0, digest_type/0]).
 
 -type public_key()           ::  rsa_public_key() | dsa_public_key() | ec_public_key().
 -type private_key()          ::  rsa_private_key() | dsa_private_key() | ec_private_key().
@@ -71,8 +73,12 @@
 -type rsa_private_key()      ::  #'RSAPrivateKey'{}.
 -type dsa_private_key()      ::  #'DSAPrivateKey'{}.
 -type dsa_public_key()       :: {integer(), #'Dss-Parms'{}}.
--type ec_public_key()        :: {#'ECPoint'{},{namedCurve, Oid::tuple()} | #'ECParameters'{}}.
+-type ecpk_parameters() :: {ecParameters, #'ECParameters'{}} | {namedCurve, Oid::tuple()}.
+-type ecpk_parameters_api() :: ecpk_parameters() | #'ECParameters'{} | {namedCurve, Name::atom()}.
+-type ec_public_key()        :: {#'ECPoint'{}, ecpk_parameters_api()}.
 -type ec_private_key()       :: #'ECPrivateKey'{}.
+-type key_params()           :: #'DHParameter'{} | {namedCurve, oid()} | #'ECParameters'{} | 
+                                {rsa, Size::integer(), PubExp::integer()}. 
 -type der_encoded()          :: binary().
 -type pki_asn1_type()        ::  'Certificate' | 'RSAPrivateKey' | 'RSAPublicKey'
 			       | 'DSAPrivateKey' | 'DSAPublicKey' | 'DHParameter'
@@ -100,6 +106,7 @@
 -type crl_reason()           ::  unspecified | keyCompromise | cACompromise | affiliationChanged | superseded
 			       | cessationOfOperation | certificateHold | privilegeWithdrawn |  aACompromise.
 -type oid()                  :: tuple().
+-type chain_type()           :: server_chain | client_chain.
 
 -define(UINT32(X), X:32/unsigned-big-integer).
 -define(DER_NULL, <<5, 0>>).
@@ -399,9 +406,7 @@ dh_gex_group(Min, N, Max, Groups) ->
 %%--------------------------------------------------------------------
 -spec generate_key(#'DHParameter'{}) ->
                           {Public::binary(), Private::binary()};
-                  ({namedCurve, Name ::oid()}) ->
-                          #'ECPrivateKey'{};
-                  (#'ECParameters'{}) ->
+                  (ecpk_parameters_api()) ->
                           #'ECPrivateKey'{};
                   ({rsa, Size::pos_integer(), PubExp::pos_integer()}) ->
                           #'RSAPrivateKey'{}.
@@ -412,6 +417,8 @@ generate_key(#'DHParameter'{prime = P, base = G}) ->
     crypto:generate_key(dh, [P, G]);
 generate_key({namedCurve, _} = Params) ->
     ec_generate_key(Params);
+generate_key({ecParameters, _} = Params) ->
+    ec_generate_key(Params);
 generate_key(#'ECParameters'{} = Params) ->
     ec_generate_key(Params);
 generate_key({rsa, ModulusSize, PublicExponent}) ->
@@ -843,10 +850,10 @@ pkix_crls_validate(OtpCert, DPAndCRLs0, Options) ->
 
 %--------------------------------------------------------------------
 -spec pkix_verify_hostname(Cert :: #'OTPCertificate'{} | binary(),
-			   ReferenceIDs :: [{uri_id | dns_id | oid(),  string()}]) -> boolean().
+			   ReferenceIDs :: [{uri_id | dns_id | ip | srv_id | oid(),  string()}]) -> boolean().
 
 -spec pkix_verify_hostname(Cert :: #'OTPCertificate'{} | binary(),
-			   ReferenceIDs :: [{uri_id | dns_id | oid(),  string()}],
+			   ReferenceIDs :: [{uri_id | dns_id | ip | srv_id | oid(),  string()}],
 			   Options :: proplists:proplist()) -> boolean().
 
 %% Description: Validates a hostname to RFC 6125
@@ -935,7 +942,6 @@ ssh_decode(SshBin, Type) when is_binary(SshBin),
 %%--------------------------------------------------------------------
 -spec ssh_encode([{public_key(), Attributes::list()}], ssh_file()) -> binary()
 	      ; (public_key(), ssh2_pubkey) -> binary()
-	      ; ({public_key(),atom()}, ssh2_pubkey) -> binary()
 	      .
 %%
 %% Description: Encodes a list of ssh file entries (public keys and
@@ -1025,6 +1031,22 @@ short_name_hash({rdnSequence, _Attributes} = Name) ->
     <<HashValue:32/little, _/binary>> = crypto:hash(sha, HashThis),
     string:to_lower(string:right(integer_to_list(HashValue, 16), 8, $0)).
 
+
+%%--------------------------------------------------------------------
+-spec pkix_test_data(#{chain_type() := pubkey_cert:chain_opts()}) ->
+                            pubkey_cert:test_config().
+
+%% Description: Generates OpenSSL-style hash of a name.
+%%--------------------------------------------------------------------
+
+pkix_test_data(#{client_chain := ClientChain0,
+                 server_chain := ServerChain0}) ->
+    Default = #{intermediates => []},
+    ClientChain = maps:merge(Default, ClientChain0),
+    ServerChain = maps:merge(Default, ServerChain0),
+    pubkey_cert:gen_test_certs(#{client_chain => ClientChain,
+                                 server_chain => ServerChain}).
+
 %%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
@@ -1286,22 +1308,54 @@ format_rsa_private_key(#'RSAPrivateKey'{modulus = N, publicExponent = E,
 								   is_integer(D) ->
    [E, N, D].
 
+-spec ec_generate_key(ecpk_parameters_api()) -> #'ECPrivateKey'{}.
 ec_generate_key(Params) ->
     Curve = ec_curve_spec(Params),
     Term = crypto:generate_key(ecdh, Curve),
-    ec_key(Term, Params).
-
-ec_curve_spec( #'ECParameters'{fieldID = FieldId, curve = PCurve, base = Base, order = Order, cofactor = CoFactor }) ->
-    Field = {pubkey_cert_records:supportedCurvesTypes(FieldId#'FieldID'.fieldType),
-	     FieldId#'FieldID'.parameters},
+    NormParams = ec_normalize_params(Params),
+    ec_key(Term, NormParams).
+
+-spec ec_normalize_params(ecpk_parameters_api()) -> ecpk_parameters().
+ec_normalize_params({namedCurve, Name}) when is_atom(Name) ->
+	{namedCurve, pubkey_cert_records:namedCurves(Name)};
+ec_normalize_params(#'ECParameters'{} = ECParams) ->
+	{ecParameters, ECParams};
+ec_normalize_params(Other) -> Other.
+
+-spec ec_curve_spec(ecpk_parameters_api()) -> term().
+ec_curve_spec( #'ECParameters'{fieldID = #'FieldID'{fieldType = Type,
+                                                    parameters = Params}, curve = PCurve, base = Base, order = Order, cofactor = CoFactor }) ->
+    Field = format_field(pubkey_cert_records:supportedCurvesTypes(Type), Params),
     Curve = {PCurve#'Curve'.a, PCurve#'Curve'.b, none},
     {Field, Curve, Base, Order, CoFactor};
+ec_curve_spec({ecParameters, ECParams}) ->
+	ec_curve_spec(ECParams);
 ec_curve_spec({namedCurve, OID}) when is_tuple(OID), is_integer(element(1,OID)) ->
     ec_curve_spec({namedCurve,  pubkey_cert_records:namedCurves(OID)});
 ec_curve_spec({namedCurve, Name}) when is_atom(Name) ->
     crypto:ec_curve(Name).
 
-
+format_field(characteristic_two_field = Type, Params0) ->
+    #'Characteristic-two'{
+       m = M,
+       basis = BasisOid,
+       parameters = Params} = der_decode('Characteristic-two', Params0),
+    {Type, M, field_param_decode(BasisOid, Params)};
+format_field(prime_field, Params0) ->
+    Prime = der_decode('Prime-p', Params0),
+    {prime_field, Prime}.
+
+field_param_decode(?'ppBasis', Params) ->
+    #'Pentanomial'{k1 = K1, k2 = K2, k3 = K3} =
+        der_decode('Pentanomial', Params),
+    {ppbasis, K1, K2, K3};
+field_param_decode(?'tpBasis', Params) ->
+    K = der_decode('Trinomial', Params),
+    {tpbasis, K};
+field_param_decode(?'gnBasis', _) ->
+    onbasis.
+        
+-spec ec_key({PubKey::term(), PrivateKey::term()}, Params::ecpk_parameters()) -> #'ECPrivateKey'{}.
 ec_key({PubKey, PrivateKey}, Params) ->
     #'ECPrivateKey'{version = 1,
 		    privateKey = PrivateKey,
@@ -1419,13 +1473,43 @@ verify_hostname_match_default0({dns_id,R}, {dNSName,P}) ->
     R==P;
 verify_hostname_match_default0({uri_id,R}, {uniformResourceIdentifier,P}) ->
     R==P;
-verify_hostname_match_default0({srv_id,R}, {T,P}) when T == srvName ;
-                                                       T == ?srvName_OID ->
+verify_hostname_match_default0({ip,R}, {iPAddress,P}) when length(P) == 4 ->
+    %% IPv4
+    try
+        list_to_tuple(P)
+            == if is_tuple(R), size(R)==4 -> R;
+                  is_list(R) -> ok(inet:parse_ipv4strict_address(R))
+               end
+    catch
+        _:_ ->
+            false
+    end;
+
+verify_hostname_match_default0({ip,R}, {iPAddress,P}) when length(P) == 16 ->
+    %% IPv6. The length 16 is due to the certificate specification.
+    try
+        l16_to_tup(P)
+            == if is_tuple(R), size(R)==8 -> R;
+                  is_list(R) -> ok(inet:parse_ipv6strict_address(R))
+               end
+    catch
+        _:_ ->
+            false
+    end;
+verify_hostname_match_default0({srv_id,R}, {srvName,P}) ->
+    R==P;
+verify_hostname_match_default0({srv_id,R}, {?srvName_OID,P}) ->
     R==P;
 verify_hostname_match_default0(_, _) ->
     false.
 
+ok({ok,X}) -> X.
 
+l16_to_tup(L) -> list_to_tuple(l16_to_tup(L, [])).
+%%
+l16_to_tup([A,B|T], Acc) -> l16_to_tup(T, [(A bsl 8) bor B | Acc]);
+l16_to_tup([], Acc) -> lists:reverse(Acc).
+    
 match_wild(A,     [$*|B]) -> match_wild_suffixes(A, B);
 match_wild([C|A], [ C|B]) -> match_wild(A, B);
 match_wild([],        []) -> true;
@@ -1464,13 +1548,16 @@ verify_hostname_match_loop(Refs, Pres, MatchFun, FailCB, Cert) ->
       Refs).
 
 
+to_lower_ascii({ip,_}=X) -> X;
+to_lower_ascii({iPAddress,_}=X) -> X;
 to_lower_ascii(S) when is_list(S) -> lists:map(fun to_lower_ascii/1, S);
 to_lower_ascii({T,S}) -> {T, to_lower_ascii(S)};
 to_lower_ascii(C) when $A =< C,C =< $Z -> C + ($a-$A);
 to_lower_ascii(C) -> C.
 
 to_string(S) when is_list(S) -> S;
-to_string(B) when is_binary(B) -> binary_to_list(B).
+to_string(B) when is_binary(B) -> binary_to_list(B);
+to_string(X) -> X.
 
 format_details([]) ->
     no_relevant_crls;
diff --git a/lib/public_key/test/erl_make_certs.erl b/lib/public_key/test/erl_make_certs.erl
index e4118bab0d..e772ea1734 100644
--- a/lib/public_key/test/erl_make_certs.erl
+++ b/lib/public_key/test/erl_make_certs.erl
@@ -178,8 +178,9 @@ make_tbs(SubjectKey, Opts) ->
 		  _ ->
 		      subject(proplists:get_value(subject, Opts),false)
 	      end,
-
-    {#'OTPTBSCertificate'{serialNumber = trunc(random:uniform()*100000000)*10000 + 1,
+    Rnd = rand:uniform( 1000000000000 ),
+    %% 1 =< Rnd < 1000000000001
+    {#'OTPTBSCertificate'{serialNumber = Rnd,
 			  signature    = SignAlgo,
 			  issuer       = Issuer,
 			  validity     = validity(Opts),
@@ -466,7 +467,8 @@ odd_rand(Size) ->
     odd_rand(Min, Max).
 
 odd_rand(Min,Max) ->
-    Rand = crypto:rand_uniform(Min,Max),
+    %% Odd random number N such that Min =< N =< Max
+    Rand = (Min-1) + rand:uniform(Max-Min), %  Min =< Rand < Max
     case Rand rem 2 of
 	0 -> 
 	    Rand + 1;
diff --git a/lib/public_key/test/public_key_SUITE.erl b/lib/public_key/test/public_key_SUITE.erl
index 80895ce97c..38e8f30a25 100644
--- a/lib/public_key/test/public_key_SUITE.erl
+++ b/lib/public_key/test/public_key_SUITE.erl
@@ -47,7 +47,10 @@ all() ->
      pkix_iso_rsa_oid, pkix_iso_dsa_oid, pkix_crl, general_name,
      pkix_verify_hostname_cn,
      pkix_verify_hostname_subjAltName,
+     pkix_verify_hostname_subjAltName_IP,
      pkix_verify_hostname_options,
+     pkix_test_data_all_default,
+     pkix_test_data,
      short_cert_issuer_hash, short_crl_issuer_hash,
      ssh_hostkey_fingerprint_md5_implicit,
      ssh_hostkey_fingerprint_md5,
@@ -60,7 +63,8 @@ all() ->
 
 groups() -> 
     [{pem_decode_encode, [], [dsa_pem, rsa_pem, ec_pem, encrypted_pem,
-			      dh_pem, cert_pem, pkcs7_pem, pkcs10_pem]},
+			      dh_pem, cert_pem, pkcs7_pem, pkcs10_pem, ec_pem2,
+                  ec_pem_encode_generated, gen_ec_param]},
      {ssh_public_key_decode_encode, [],
       [ssh_rsa_public_key, ssh_dsa_public_key, ssh_ecdsa_public_key,
        ssh_rfc4716_rsa_comment, ssh_rfc4716_dsa_comment,
@@ -92,6 +96,28 @@ init_per_group(_GroupName, Config) ->
 end_per_group(_GroupName, Config) ->
     Config.
 %%-------------------------------------------------------------------
+
+init_per_testcase(pkix_test_data_all_default, Config) ->
+     case crypto:ec_curves() of
+         [] ->
+             {skip, missing_ecc_support};
+         _ ->
+             init_common_per_testcase(Config)
+     end;
+
+init_per_testcase(gen_ec_param, Config) ->
+    case crypto:ec_curves() of
+         [] ->
+             {skip, missing_ecc_support};
+         Curves ->
+            case lists:member(secp521r1, Curves) of
+                true ->
+                    init_common_per_testcase(Config);
+                false ->
+                    {skip, missing_ecc_secp52r1_support}
+            end
+    end;
+
 init_per_testcase(TestCase, Config) ->
     case TestCase of
 	ssh_hostkey_fingerprint_md5_implicit -> init_fingerprint_testcase([md5], Config);
@@ -101,6 +127,7 @@ init_per_testcase(TestCase, Config) ->
 	ssh_hostkey_fingerprint_sha384 -> init_fingerprint_testcase([sha384], Config);
 	ssh_hostkey_fingerprint_sha512 -> init_fingerprint_testcase([sha512], Config);
 	ssh_hostkey_fingerprint_list   -> init_fingerprint_testcase([sha,md5], Config);
+    ec_pem_encode_generated        -> init_ec_pem_encode_generated(Config);
 	_ -> init_common_per_testcase(Config)
     end.
 	
@@ -217,9 +244,47 @@ ec_pem(Config) when is_list(Config) ->
     true = check_entry_type(ECParams, 'EcpkParameters'),
     ECPrivKey = public_key:pem_entry_decode(Entry2),
     true = check_entry_type(ECPrivKey, 'ECPrivateKey'),
+    true = check_entry_type(ECPrivKey#'ECPrivateKey'.parameters, 'EcpkParameters'),
     ECPemNoEndNewLines = strip_superfluous_newlines(ECPrivPem),
     ECPemNoEndNewLines = strip_superfluous_newlines(public_key:pem_encode([Entry1, Entry2])).
     
+ec_pem2() ->
+    [{doc, "EC key w/explicit params PEM-file decode/encode"}].
+ec_pem2(Config) when is_list(Config) ->
+    Datadir = proplists:get_value(data_dir, Config),
+
+    %% Load key with explicit curve parameters.  Generated with...
+    %% openssl ecparam -name secp521r1 -genkey -param_enc explicit -out ec_key2.pem
+    {ok, ECPrivPem} = file:read_file(filename:join(Datadir, "ec_key2.pem")),
+    [{'EcpkParameters', _, not_encrypted} = Entry1,
+     {'ECPrivateKey', _, not_encrypted} = Entry2] = public_key:pem_decode(ECPrivPem),
+
+    ECParams = public_key:pem_entry_decode(Entry1),
+    true = check_entry_type(ECParams, 'EcpkParameters'),
+    ECPrivKey = public_key:pem_entry_decode(Entry2),
+    true = check_entry_type(ECPrivKey, 'ECPrivateKey'),
+    true = check_entry_type(ECPrivKey#'ECPrivateKey'.parameters, 'EcpkParameters'),
+    ECPemNoEndNewLines = strip_superfluous_newlines(ECPrivPem),
+    ECPemNoEndNewLines = strip_superfluous_newlines(public_key:pem_encode([Entry1, Entry2])).
+
+
+init_ec_pem_encode_generated(Config) ->
+    case catch true = lists:member('secp384r1', crypto:ec_curves()) of
+        {'EXIT', _} -> {skip, {'secp384r1', not_supported}};
+        _           -> init_common_per_testcase(Config)
+    end.
+
+ec_pem_encode_generated() ->
+    [{doc, "PEM-encode generated EC key"}].
+ec_pem_encode_generated(Config) ->
+
+    Key1 = public_key:generate_key({namedCurve, 'secp384r1'}),
+    public_key:pem_entry_encode('ECPrivateKey', Key1),
+
+    Key2 = public_key:generate_key({namedCurve, ?'secp384r1'}),
+    public_key:pem_entry_encode('ECPrivateKey', Key2).
+
+
 %%--------------------------------------------------------------------
 
 encrypted_pem() ->
@@ -935,6 +1000,43 @@ pkix_verify_hostname_options(Config) ->
     false =  public_key:pkix_verify_hostname(Cert, [{uri_id,"some://very.wrong.domain"}]).
 
 %%--------------------------------------------------------------------
+%% To generate the PEM file contents:
+%%
+%% openssl req -x509 -nodes -newkey rsa:1024 -keyout /dev/null -extensions SAN -config  public_key_SUITE_data/verify_hostname_ip.conf 2>/dev/null > public_key_SUITE_data/pkix_verify_hostname_subjAltName_IP.pem
+%%
+%% Subject: C=SE, CN=example.com
+%% Subject Alternative Name: DNS:1.2.3.4, DNS: abcd:ef::1, IP:10.67.16.75, URI:https://10.11.12.13
+
+pkix_verify_hostname_subjAltName_IP(Config) ->
+    DataDir = proplists:get_value(data_dir, Config),
+    {ok,Bin} = file:read_file(filename:join(DataDir,"pkix_verify_hostname_subjAltName_IP.pem")),
+    Cert = public_key:pkix_decode_cert(element(2,hd(public_key:pem_decode(Bin))), otp),
+
+    %% Print the tests that a matchfun has to handle
+    catch public_key:pkix_verify_hostname(Cert, [{some_tag,"some.domain"},
+                                                 {ip, {10,67,16,75}}
+                                                ],
+                                          [{match_fun,
+                                            fun(Ref,Pres) -> 
+                                                    ct:pal("~p:~p:~nRef : ~p~nPres: ~p",[?MODULE,?LINE,Ref,Pres]),
+                                                    false
+                                            end}]),
+
+    false =  public_key:pkix_verify_hostname(Cert, [{uri_id,"https://1.2.3.4"}]),
+    true  =  public_key:pkix_verify_hostname(Cert, [{uri_id,"https://10.11.12.13"}]),
+    true  =  public_key:pkix_verify_hostname(Cert, [{dns_id,"1.2.3.4"}]),
+    true  =  public_key:pkix_verify_hostname(Cert, [{dns_id,<<"1.2.3.4">>}]),
+    false =  public_key:pkix_verify_hostname(Cert, [{dns_id,"10.67.16.75"}]),
+    true  =  public_key:pkix_verify_hostname(Cert, [{ip, "aBcD:ef:0::0:1"}]),
+    true  =  public_key:pkix_verify_hostname(Cert, [{ip, {16#abcd,16#ef,0,0,0,0,0,1}}]),
+    true  =  public_key:pkix_verify_hostname(Cert, [{ip, "10.67.16.75"}]),
+    true  =  public_key:pkix_verify_hostname(Cert, [{ip, <<"10.67.16.75">>}]),
+    true  =  public_key:pkix_verify_hostname(Cert, [{ip, {10,67,16,75}}]),
+    false =  public_key:pkix_verify_hostname(Cert, [{ip, {1,2,3,4}}]),
+    false =  public_key:pkix_verify_hostname(Cert, [{ip, {10,11,12,13}}]).
+        
+
+%%--------------------------------------------------------------------
 pkix_iso_rsa_oid() ->
  [{doc, "Test workaround for supporting certs that use ISO oids"
    " 1.3.14.3.2.29 instead of PKIX/PKCS oid"}].
@@ -1007,6 +1109,84 @@ general_name(Config) when is_list(Config) ->
 				    authorityCertSerialNumber = 
 					1}).
 %%--------------------------------------------------------------------
+
+pkix_test_data_all_default() ->
+    [{doc, "Test API function pkix_test_data/1"}].
+
+pkix_test_data_all_default(Config) when is_list(Config) ->
+    #{server_config := ServerConf0,
+      client_config := ClientConf0} = public_key:pkix_test_data(#{server_chain => 
+                                                                     #{root => [],
+                                                                       intermediates => [[]],
+                                                                       peer => []},
+                                                                 client_chain => 
+                                                                     #{root => [],
+                                                                       intermediates => [[]],
+                                                                       peer => []}}),
+    check_conf_member(ServerConf0, [key, cert, cacerts]),
+    check_conf_member(ClientConf0, [key, cert, cacerts]),
+    
+    3 = length(proplists:get_value(cacerts, ServerConf0)),
+    3 = length(proplists:get_value(cacerts, ServerConf0)),
+
+    #{server_config := ServerConf1,
+      client_config := ClientConf1} = public_key:pkix_test_data(#{server_chain => 
+                                                                     #{root => [],
+                                                                       peer => []},
+                                                                 client_chain => 
+                                                                     #{root => [],
+                                                                       peer => []}}),
+    2 = length(proplists:get_value(cacerts, ServerConf1)),
+    2 = length(proplists:get_value(cacerts, ServerConf1)),
+    
+    check_conf_member(ServerConf1, [key, cert, cacerts]),
+    check_conf_member(ClientConf1, [key, cert, cacerts]).
+    
+
+pkix_test_data() ->
+    [{doc, "Test API function pkix_test_data/1"}].
+
+pkix_test_data(Config) when is_list(Config) ->
+    {Year, Month, Day} = date(),
+    Keygen = 
+        case crypto:ec_curves() of
+        [] ->
+            {rsa, 2048, 17};
+        [Curve |_] ->
+            Oid = pubkey_cert_records:namedCurves(Curve),
+            {namedCurve, Oid}
+        end,
+    #{server_config := ServerConf0,
+      client_config := ClientConf0} = 
+        public_key:pkix_test_data(#{server_chain => 
+                                        #{root => [],
+                                          intermediates => [],
+                                          peer => [{key, hardcode_rsa_key()}]},
+                                    client_chain => 
+                                        #{root => [{validity, {{Year-2, Month, Day}, 
+                                                               {Year-1, Month, Day}}}],
+                                          intermediates => 
+                                              [[{extensions, [#'Extension'{extnID = ?'id-ce-basicConstraints',
+                                                                           extnValue = #'BasicConstraints'{cA=true, 
+                                                                                             pathLenConstraint = 1},
+                                                                           critical = true}]}]],
+                                               peer => [{key, Keygen}, {digest, sha1}]}}),
+    check_conf_member(ServerConf0, [key, cert, cacerts]),
+    check_conf_member(ClientConf0, [key, cert, cacerts]).
+
+   
+                                 
+check_conf_member(_, []) ->
+    true;
+check_conf_member(Conf, [Member | Rest]) ->
+    case lists:keymember(Member, 1, Conf) of
+        true ->
+            check_conf_member(Conf, Rest);
+        false ->
+            ct:fail({misssing_conf, Member})
+    end.
+                              
+%%--------------------------------------------------------------------
 short_cert_issuer_hash() ->
     [{doc, "Test OpenSSL-style hash for certificate issuer"}].
 
@@ -1040,7 +1220,13 @@ short_crl_issuer_hash(Config) when is_list(Config) ->
     Issuer = public_key:pkix_crl_issuer(CrlDER),
 
     CrlIssuerHash = public_key:short_name_hash(Issuer).
-
+%%--------------------------------------------------------------------
+gen_ec_param() ->
+    [{doc, "Generate key with EC parameters"}].
+gen_ec_param(Config) when is_list(Config) ->
+    Datadir = proplists:get_value(data_dir, Config),
+    do_gen_ec_param(filename:join(Datadir, "ec_key_param0.pem")),
+    do_gen_ec_param(filename:join(Datadir, "ec_key_param1.pem")).
 
 %%--------------------------------------------------------------------
 %% Internal functions ------------------------------------------------
@@ -1095,7 +1281,7 @@ check_entry_type(#'ECPrivateKey'{}, 'ECPrivateKey') ->
     true;
 check_entry_type({namedCurve, _}, 'EcpkParameters') ->
     true;
-check_entry_type(#'ECParameters'{}, 'EcpkParameters') ->
+check_entry_type({ecParameters, #'ECParameters'{}}, 'EcpkParameters') ->
     true;
 check_entry_type(_,_) ->
     false.
@@ -1113,6 +1299,19 @@ strip_superfluous_newlines(Bin) ->
     Str = string:strip(binary_to_list(Bin), right, 10),
     re:replace(Str,"\n\n","\n", [{return,list}, global]).
 
+do_gen_ec_param(File) ->    
+    {ok, KeyPem} = file:read_file(File),
+    Entries = public_key:pem_decode(KeyPem),
+    [ParamInfo] = [Entry || Entry={'EcpkParameters', _, not_encrypted} <- Entries],
+    {ecParameters, Params} = public_key:pem_entry_decode(ParamInfo),
+    Key = public_key:generate_key(Params),
+    case check_entry_type(Key, 'ECPrivateKey') of
+        true ->
+            ok;
+        false ->
+            ct:fail({key_gen_fail, File})
+    end.
+
 incorrect_countryname_pkix_cert() ->
     <<48,130,5,186,48,130,4,162,160,3,2,1,2,2,7,7,250,61,63,6,140,137,48,13,6,9,42, 134,72,134,247,13,1,1,5,5,0,48,129,220,49,11,48,9,6,3,85,4,6,19,2,85,83,49, 16,48,14,6,3,85,4,8,19,7,65,114,105,122,111,110,97,49,19,48,17,6,3,85,4,7,19, 10,83,99,111,116,116,115,100,97,108,101,49,37,48,35,6,3,85,4,10,19,28,83,116, 97,114,102,105,101,108,100,32,84,101,99,104,110,111,108,111,103,105,101,115, 44,32,73,110,99,46,49,57,48,55,6,3,85,4,11,19,48,104,116,116,112,58,47,47,99, 101,114,116,105,102,105,99,97,116,101,115,46,115,116,97,114,102,105,101,108, 100,116,101,99,104,46,99,111,109,47,114,101,112,111,115,105,116,111,114,121, 49,49,48,47,6,3,85,4,3,19,40,83,116,97,114,102,105,101,108,100,32,83,101,99, 117,114,101,32,67,101,114,116,105,102,105,99,97,116,105,111,110,32,65,117, 116,104,111,114,105,116,121,49,17,48,15,6,3,85,4,5,19,8,49,48,54,56,56,52,51, 53,48,30,23,13,49,48,49,48,50,51,48,49,51,50,48,53,90,23,13,49,50,49,48,50, 51,48,49,51,50,48,53,90,48,122,49,11,48,9,6,3,85,4,6,12,2,85,83,49,11,48,9,6, 3,85,4,8,12,2,65,90,49,19,48,17,6,3,85,4,7,12,10,83,99,111,116,116,115,100, 97,108,101,49,38,48,36,6,3,85,4,10,12,29,83,112,101,99,105,97,108,32,68,111, 109,97,105,110,32,83,101,114,118,105,99,101,115,44,32,73,110,99,46,49,33,48, 31,6,3,85,4,3,12,24,42,46,108,111,103,105,110,46,115,101,99,117,114,101,115, 101,114,118,101,114,46,110,101,116,48,130,1,34,48,13,6,9,42,134,72,134,247, 13,1,1,1,5,0,3,130,1,15,0,48,130,1,10,2,130,1,1,0,185,136,240,80,141,36,124, 245,182,130,73,19,188,74,166,117,72,228,185,209,43,129,244,40,44,193,231,11, 209,12,234,88,43,142,1,162,48,122,17,95,230,105,171,131,12,147,46,204,36,80, 250,171,33,253,35,62,83,22,71,212,186,141,14,198,89,89,121,204,224,122,246, 127,110,188,229,162,67,95,6,74,231,127,99,131,7,240,85,102,203,251,50,58,58, 104,245,103,181,183,134,32,203,121,232,54,32,188,139,136,112,166,126,14,91, 223,153,172,164,14,61,38,163,208,215,186,210,136,213,143,70,147,173,109,217, 250,169,108,31,211,104,238,103,93,182,59,165,43,196,189,218,241,30,148,240, 109,90,69,176,194,52,116,173,151,135,239,10,209,179,129,192,102,75,11,25,168, 223,32,174,84,223,134,70,167,55,172,143,27,130,123,226,226,7,34,142,166,39, 48,246,96,231,150,84,220,106,133,193,55,95,159,227,24,249,64,36,1,142,171,16, 202,55,126,7,156,15,194,22,116,53,113,174,104,239,203,120,45,131,57,87,84, 163,184,27,83,57,199,91,200,34,43,98,61,180,144,76,65,170,177,2,3,1,0,1,163, 130,1,224,48,130,1,220,48,15,6,3,85,29,19,1,1,255,4,5,48,3,1,1,0,48,29,6,3, 85,29,37,4,22,48,20,6,8,43,6,1,5,5,7,3,1,6,8,43,6,1,5,5,7,3,2,48,14,6,3,85, 29,15,1,1,255,4,4,3,2,5,160,48,56,6,3,85,29,31,4,49,48,47,48,45,160,43,160, 41,134,39,104,116,116,112,58,47,47,99,114,108,46,115,116,97,114,102,105,101, 108,100,116,101,99,104,46,99,111,109,47,115,102,115,50,45,48,46,99,114,108, 48,83,6,3,85,29,32,4,76,48,74,48,72,6,11,96,134,72,1,134,253,110,1,7,23,2,48, 57,48,55,6,8,43,6,1,5,5,7,2,1,22,43,104,116,116,112,115,58,47,47,99,101,114, 116,115,46,115,116,97,114,102,105,101,108,100,116,101,99,104,46,99,111,109, 47,114,101,112,111,115,105,116,111,114,121,47,48,129,141,6,8,43,6,1,5,5,7,1, 1,4,129,128,48,126,48,42,6,8,43,6,1,5,5,7,48,1,134,30,104,116,116,112,58,47, 47,111,99,115,112,46,115,116,97,114,102,105,101,108,100,116,101,99,104,46,99, 111,109,47,48,80,6,8,43,6,1,5,5,7,48,2,134,68,104,116,116,112,58,47,47,99, 101,114,116,105,102,105,99,97,116,101,115,46,115,116,97,114,102,105,101,108, 100,116,101,99,104,46,99,111,109,47,114,101,112,111,115,105,116,111,114,121, 47,115,102,95,105,110,116,101,114,109,101,100,105,97,116,101,46,99,114,116, 48,31,6,3,85,29,35,4,24,48,22,128,20,73,75,82,39,209,27,188,242,161,33,106, 98,123,81,66,122,138,215,213,86,48,59,6,3,85,29,17,4,52,48,50,130,24,42,46, 108,111,103,105,110,46,115,101,99,117,114,101,115,101,114,118,101,114,46,110, 101,116,130,22,108,111,103,105,110,46,115,101,99,117,114,101,115,101,114,118, 101,114,46,110,101,116,48,29,6,3,85,29,14,4,22,4,20,138,233,191,208,157,203, 249,85,242,239,20,195,48,10,148,49,144,101,255,116,48,13,6,9,42,134,72,134, 247,13,1,1,5,5,0,3,130,1,1,0,82,31,121,162,49,50,143,26,167,202,143,61,71, 189,201,199,57,81,122,116,90,192,88,24,102,194,174,48,157,74,27,87,210,223, 253,93,3,91,150,109,120,1,110,27,11,200,198,141,222,246,14,200,71,105,41,138, 13,114,122,106,63,17,197,181,234,121,61,89,74,65,41,231,248,219,129,83,176, 219,55,107,55,211,112,98,38,49,69,77,96,221,108,123,152,12,210,159,157,141, 43,226,55,187,129,3,82,49,136,66,81,196,91,234,196,10,82,48,6,80,163,83,71, 127,102,177,93,209,129,26,104,2,84,24,255,248,161,3,244,169,234,92,122,110, 43,4,17,113,185,235,108,219,210,236,132,216,177,227,17,169,58,162,159,182, 162,93,160,229,200,9,163,229,110,121,240,168,232,14,91,214,188,196,109,210, 164,222,0,109,139,132,113,91,16,118,173,178,176,80,132,34,41,199,51,206,250, 224,132,60,115,192,94,107,163,219,212,226,225,65,169,148,108,213,46,174,173, 103,110,189,229,166,149,254,31,51,44,144,108,187,182,11,251,201,206,86,138, 208,59,51,86,132,235,81,225,88,34,190,8,184>>.
 
@@ -1128,3 +1327,15 @@ ssh_hostkey(rsa) ->
 	  public_key),
     PKdecoded.
 
+hardcode_rsa_key() ->
+    #'RSAPrivateKey'{
+       version = 'two-prime',
+       modulus = 23995666614853919027835084074500048897452890537492185072956789802729257783422306095699263934587064480357348855732149402060270996295002843755712064937715826848741191927820899197493902093529581182351132392364214171173881547273475904587683433713767834856230531387991145055273426806331200574039205571401702219159773947658558490957010003143162250693492642996408861265758000254664396313741422909188635443907373976005987612936763564996605457102336549804831742940035613780926178523017685712710473543251580072875247250504243621640157403744718833162626193206685233710319205099867303242759099560438381385658382486042995679707669,
+       publicExponent = 17,
+       privateExponent = 11292078406990079542510627799764728892919007311761028269626724613049062486316379339152594792746853873109340637991599718616598115903530750002688030558925094987642913848386305504703012749896273497577003478759630198199473669305165131570674557041773098755873191241407597673069847908861741446606684974777271632545629600685952292605647052193819136445675100211504432575554351515262198132231537860917084269870590492135731720141577986787033006338680118008484613510063003323516659048210893001173583018220214626635609151105287049126443102976056146630518124476470236027123782297108342869049542023328584384300970694412006494684657,
+       prime1 = 169371138592582642967021557955633494538845517070305333860805485424261447791289944610138334410987654265476540480228705481960508520379619587635662291973699651583489223555422528867090299996446070521801757353675026048850480903160224210802452555900007597342687137394192939372218903554801584969667104937092080815197,
+       prime2 = 141675062317286527042995673340952251894209529891636708844197799307963834958115010129693036021381525952081167155681637592199810112261679449166276939178032066869788822014115556349519329537177920752776047051833616197615329017439297361972726138285974555338480581117881706656603857310337984049152655480389797687577,
+       exponent1 = 119556097830058336212015217380447172615655659108450823901745048534772786676204666783627059584226579481512852103690850928442711896738555003036938088452023283470698275450886490965004917644550167427154181661417665446247398284583687678213495921811770068712485038160606780733330990744565824684470897602653233516609,
+       exponent2 = 41669135975672507953822256864985956439473391144599032012999352737636422046504414744027363535700448809435637398729893409470532385959317485048904982111185902020526124121798693043976273393287623750816484427009887116945685005129205106462566511260580751570141347387612266663707016855981760014456663376585234613993,
+       coefficient = 76837684977089699359024365285678488693966186052769523357232308621548155587515525857011429902602352279058920284048929101483304120686557782043616693940283344235057989514310975192908256494992960578961614059245280827077951132083993754797053182279229469590276271658395444955906108899267024101096069475145863928441,
+       otherPrimeInfos = asn1_NOVALUE}.
diff --git a/lib/public_key/test/public_key_SUITE_data/ec_key2.pem b/lib/public_key/test/public_key_SUITE_data/ec_key2.pem
new file mode 100644
index 0000000000..56b8169e86
--- /dev/null
+++ b/lib/public_key/test/public_key_SUITE_data/ec_key2.pem
@@ -0,0 +1,29 @@
+-----BEGIN EC PARAMETERS-----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+-----END EC PARAMETERS-----
+-----BEGIN EC PRIVATE KEY-----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+-----END EC PRIVATE KEY-----
diff --git a/lib/public_key/test/public_key_SUITE_data/ec_key_param0.pem b/lib/public_key/test/public_key_SUITE_data/ec_key_param0.pem
new file mode 100644
index 0000000000..679b08f1a2
--- /dev/null
+++ b/lib/public_key/test/public_key_SUITE_data/ec_key_param0.pem
@@ -0,0 +1,28 @@
+-----BEGIN EC PARAMETERS-----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+-----END EC PARAMETERS-----
+-----BEGIN EC PRIVATE KEY-----
+MIICnAIBAQRBP6XqBV/b2Q49a8RUvrJBwotzY+IErK5FkzgkExqJuyzXXMM3jMtd
+M1vlEF46OCjbldw7NaYITW1mpwz6z2xtqyagggHGMIIBwgIBATBNBgcqhkjOPQEB
+AkIB////////////////////////////////////////////////////////////
+//////////////////////////8wgZ4EQgH/////////////////////////////
+/////////////////////////////////////////////////////////ARBUZU+
+uWGOHJofkpohoLaFQO6i2nJbmbMV87i0iZGO8QnhVhk5Uex+k3sWUsC9O7G/BzVz
+34g9LDTx70Uf1GtQPwADFQDQnogAKRy4U5bMZxc5MoSqoNpkugSBhQQAxoWOBrcE
+BOnNnj7LZiOVtEKcZIE5BT+1Ifgor2BrTT26oUted+/nWSj+HcEnov+o3jNIs8GF
+akKb+X5+McLlvWYBGDkpaniaO8AEXIpftCx9G9mY9URJV5tEaBevvRcnPmYsl+5y
+mV70JkDFULkBP60HYTU8cIaicsJAiL6Udp/RZlACQgH/////////////////////
+//////////////////////pRhoeDvy+Wa3/MAUj3CaXQO7XJuImcR667b7cekThk
+CQIBAaGBiQOBhgAEAVtCjzs+HP67ZZheraLGJPY+iIJHwDYWeCyzn2J4/fOv5CTo
+x0+1QcjrECh4V4F6jfqwW/oQaG9KKyEWhvvWQ0yVAeBfE+89DhYB3h2kyelqRcwZ
+XUuB7n7TxijJiHJXq9b+u+sh0qH9ya6nbWjHk79V37pgQOegHjnRc1gIFz6IfRUa
+-----END EC PRIVATE KEY-----
diff --git a/lib/public_key/test/public_key_SUITE_data/ec_key_param1.pem b/lib/public_key/test/public_key_SUITE_data/ec_key_param1.pem
new file mode 100644
index 0000000000..67095d8dc5
--- /dev/null
+++ b/lib/public_key/test/public_key_SUITE_data/ec_key_param1.pem
@@ -0,0 +1,25 @@
+-----BEGIN EC PARAMETERS-----
+MIIBcQIBATAlBgcqhkjOPQECMBoCAgI7BgkqhkjOPQECAwMwCQIBAgIBBQIBCjBk
+BAEBBEgC9A5+IiHyld4pcRe389YvXGqX/8uM7/HNa6jOSpoYrYT/q72O+lkzK+et
+Z1ambilK/RhaeP8SqlIOTec5usoMf/7/fylVcnoDFQAqoFj3Og4zq0hrD2EEEMU6
+fxMjEASBkQQDAwAdNLhWKWwWwNQNPNd1CpPR0pVfqAql9A/I23sqvb3lOVD0wNKT
+zdcRo1tn+xSZrmADhhTxOUq/o7TIUNkn4ed2nI7sLRkDe/JzQtpjm23M//63PWnX
+jGwnpgCcu8oZgPhTOSHopoRCPkO6sIpXYpGvj0YbsqizUx0vBIXBmxbi8VFuI908
+GkgnrxuKwVsCSAP//////////////////////////////////////////////+Zh
+zhj/VZhzCAWbGGgjhR7H3ZyhFh3pPVF01m6Dgum7L+hORwIBAg==
+-----END EC PARAMETERS-----
+-----BEGIN EC PRIVATE KEY-----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+-----END EC PRIVATE KEY-----
diff --git a/lib/public_key/test/public_key_SUITE_data/pkix_verify_hostname_subjAltName_IP.pem b/lib/public_key/test/public_key_SUITE_data/pkix_verify_hostname_subjAltName_IP.pem
new file mode 100644
index 0000000000..97d12cdadf
--- /dev/null
+++ b/lib/public_key/test/public_key_SUITE_data/pkix_verify_hostname_subjAltName_IP.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/lib/public_key/test/public_key_SUITE_data/verify_hostname_ip.conf b/lib/public_key/test/public_key_SUITE_data/verify_hostname_ip.conf
new file mode 100644
index 0000000000..798592e4f6
--- /dev/null
+++ b/lib/public_key/test/public_key_SUITE_data/verify_hostname_ip.conf
@@ -0,0 +1,17 @@
+[req]
+prompt             = no
+distinguished_name = DN
+
+[DN]
+C=SE
+CN=example.com
+
+[SAN]
+subjectAltName = @alt_names
+
+[alt_names]
+DNS = 1.2.3.4
+IP.1 = 10.67.16.75
+IP.2 = abcd:ef::1
+URI = https://10.11.12.13
+
diff --git a/lib/public_key/vsn.mk b/lib/public_key/vsn.mk
index 83a77d2a28..bb96c2237d 100644
--- a/lib/public_key/vsn.mk
+++ b/lib/public_key/vsn.mk
@@ -1 +1 @@
-PUBLIC_KEY_VSN = 1.4.1
+PUBLIC_KEY_VSN = 1.5
diff --git a/lib/reltool/doc/src/notes.xml b/lib/reltool/doc/src/notes.xml
index 8593a1017f..d7ad7c8dcc 100644
--- a/lib/reltool/doc/src/notes.xml
+++ b/lib/reltool/doc/src/notes.xml
@@ -38,7 +38,26 @@
     thus constitutes one section in this document. The title of each
     section is the version number of Reltool.</p>
 
-  <section><title>Reltool 0.7.4</title>
+  <section><title>Reltool 0.7.5</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    Files generated by <c>release_handler</c> and
+	    <c>reltool</c>, which might contain Unicode characters,
+	    are now encoded as UTF-8 and written with format "~tp" or
+	    "~ts". If the file is to be read by
+	    <c>file:consult/1</c>, an encoding comment is added.</p>
+          <p>
+	    Own Id: OTP-14463</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Reltool 0.7.4</title>
 
     <section><title>Improvements and New Features</title>
       <list>
diff --git a/lib/reltool/src/reltool.app.src b/lib/reltool/src/reltool.app.src
index 90f93d2901..dc21c1cfce 100644
--- a/lib/reltool/src/reltool.app.src
+++ b/lib/reltool/src/reltool.app.src
@@ -36,6 +36,6 @@
   {registered, []},
   {applications, [stdlib, kernel]},
   {env, []},
-  {runtime_dependencies, ["wx-1.2","tools-2.6.14","stdlib-2.0","sasl-2.4",
+  {runtime_dependencies, ["wx-1.2","tools-2.6.14","stdlib-3.4","sasl-2.4",
 			  "kernel-3.0","erts-7.0"]}
  ]}.
diff --git a/lib/reltool/src/reltool.hrl b/lib/reltool/src/reltool.hrl
index 9c8aae6b7e..d133762818 100644
--- a/lib/reltool/src/reltool.hrl
+++ b/lib/reltool/src/reltool.hrl
@@ -220,7 +220,8 @@
         {
           name     :: rel_name(),
           vsn      :: rel_vsn(),
-          rel_apps :: [#rel_app{}]
+          rel_apps :: [#rel_app{}],
+          load_dot_erlang = true :: boolean()
 	}).
 
 -record(sys,
@@ -300,6 +301,7 @@
 
 -define(STANDALONE_INCL_SYS_FILTERS,  ["^bin/(erl|epmd)(|\\.exe|\\.ini)\$",
 				       "^bin/start(|_clean).boot\$",
+				       "^bin/no_dot_erlang\\.boot\$",
 				       "^erts.*/bin",
 				       "^lib\$"]).
 -define(STANDALONE_EXCL_SYS_FILTERS,
diff --git a/lib/reltool/src/reltool_mod_win.erl b/lib/reltool/src/reltool_mod_win.erl
index 2d56d74563..dcd802a5de 100644
--- a/lib/reltool/src/reltool_mod_win.erl
+++ b/lib/reltool/src/reltool_mod_win.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2009-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2009-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -833,7 +833,7 @@ load_code(Ed, Code) when is_binary(Code) ->
 
 keyWords() ->
     L = ["after","begin","case","try","cond","catch","andalso","orelse",
-	 "end","fun","if","let","of","query","receive","when","bnot","not",
+	 "end","fun","if","let","of","receive","when","bnot","not",
 	 "div","rem","band","and","bor","bxor","bsl","bsr","or","xor"],
     lists:flatten([K ++ " " || K <- L] ++ [0]).
 
diff --git a/lib/reltool/src/reltool_target.erl b/lib/reltool/src/reltool_target.erl
index 1b1461178e..503e1971b9 100644
--- a/lib/reltool/src/reltool_target.erl
+++ b/lib/reltool/src/reltool_target.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2009-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2009-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -424,7 +424,7 @@ gen_script(Rel, Sys, PathFlag, Variables) ->
             {error, Text}
     end.
 
-do_gen_script(#rel{name = RelName, vsn = RelVsn},
+do_gen_script(#rel{name = RelName, vsn = RelVsn, load_dot_erlang=LoadErlangRc},
               #sys{apps = Apps},
 	      MergedApps,
               PathFlag,
@@ -474,9 +474,11 @@ do_gen_script(#rel{name = RelName, vsn = RelVsn},
              Type =/= none,
              Type =/= load,
              not lists:member(Name, InclApps)],
-
          %% Apply user specific customizations
-         {apply, {c, erlangrc, []}},
+         case LoadErlangRc of
+             true -> {apply, {c, erlangrc, []}};
+             false -> []
+         end,
          {progress, started}
         ],
     {ok, {script, {RelName, RelVsn}, lists:flatten(DeepList)}}.
diff --git a/lib/reltool/src/reltool_utils.erl b/lib/reltool/src/reltool_utils.erl
index 3891b5ae4d..060a0912f9 100644
--- a/lib/reltool/src/reltool_utils.erl
+++ b/lib/reltool/src/reltool_utils.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2009-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2009-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -154,7 +154,12 @@ default_rels() ->
 	  rel_apps = []},
      #rel{name = "start_sasl",
 	  vsn = "1.0",
-	  rel_apps = [#rel_app{name = sasl}]}
+          rel_apps = [#rel_app{name = sasl}]},
+     #rel{name = "no_dot_erlang", %% Needed by escript and erlc
+          vsn = "1.0",
+          rel_apps = [],
+          load_dot_erlang = false
+         }
     ].
 
 choose_default(Tag, Profile, InclDefs)
diff --git a/lib/reltool/test/reltool_app_SUITE.erl b/lib/reltool/test/reltool_app_SUITE.erl
index 18c74bea6c..a51ee8875a 100644
--- a/lib/reltool/test/reltool_app_SUITE.erl
+++ b/lib/reltool/test/reltool_app_SUITE.erl
@@ -24,7 +24,7 @@
 %%----------------------------------------------------------------------
 -module(reltool_app_SUITE).
 
--compile(export_all).
+-compile([export_all, nowarn_export_all]).
 
 -include("reltool_test_lib.hrl").
 -include_lib("common_test/include/ct.hrl").
diff --git a/lib/reltool/test/reltool_manual_gui_SUITE.erl b/lib/reltool/test/reltool_manual_gui_SUITE.erl
index eebe2303fb..44da4ffd2c 100644
--- a/lib/reltool/test/reltool_manual_gui_SUITE.erl
+++ b/lib/reltool/test/reltool_manual_gui_SUITE.erl
@@ -23,7 +23,7 @@
 	 init_per_suite/1, end_per_suite/1,
 	 init_per_testcase/2, end_per_testcase/2]).
 
--compile(export_all).
+-export([config/1, depgraphs/1]).
 
 -include_lib("common_test/include/ct.hrl").
 -include("reltool_test_lib.hrl").
diff --git a/lib/reltool/test/reltool_server_SUITE.erl b/lib/reltool/test/reltool_server_SUITE.erl
index e8dfea94da..3622f6650c 100644
--- a/lib/reltool/test/reltool_server_SUITE.erl
+++ b/lib/reltool/test/reltool_server_SUITE.erl
@@ -19,11 +19,7 @@
 
 -module(reltool_server_SUITE).
 
--export([all/0, suite/0,groups/0,init_per_group/2,end_per_group/2, 
-	 init_per_suite/1, end_per_suite/1, 
-         init_per_testcase/2, end_per_testcase/2]).
-
--compile(export_all).
+-compile([export_all, nowarn_export_all]).
 
 -include_lib("reltool/src/reltool.hrl").
 -include("reltool_test_lib.hrl").
@@ -251,6 +247,7 @@ get_config(_Config) ->
 		    {app,stdlib,[{incl_cond,include},{vsn,undefined},
 				 {lib_dir,StdLibDir}]},
 		    {boot_rel,"start_clean"},
+                    {rel,"no_dot_erlang","1.0",[]},
 		    {rel,"start_clean","1.0",[]},
 		    {rel,"start_sasl","1.0",[sasl]},
 		    {emu_name,"beam"},
@@ -281,6 +278,7 @@ get_config(_Config) ->
 		    {app,stdlib,[{incl_cond,include},{vsn,StdVsn},
 				 {lib_dir,StdLibDir},{mod,_,[]}|_]},
 		    {boot_rel,"start_clean"},
+                    {rel,"no_dot_erlang","1.0",[]},
 		    {rel,"start_clean","1.0",[]},
 		    {rel,"start_sasl","1.0",[sasl]},
 		    {emu_name,"beam"},
@@ -2108,6 +2106,7 @@ save_config(Config) ->
 		     {app,stdlib,[{incl_cond,include},{vsn,undefined},
 				  {lib_dir,undefined}]},
 		     {boot_rel,"start_clean"},
+                     {rel,"no_dot_erlang","1.0",[]},
 		     {rel,"start_clean","1.0",[]},
 		     {rel,"start_sasl","1.0",[sasl]},
 		     {emu_name,"beam"},
@@ -2148,6 +2147,7 @@ save_config(Config) ->
 		     {app,stdlib,[{incl_cond,include},{vsn,StdVsn},
 				  {lib_dir,StdLibDir},{mod,_,[]}|_]},
 		     {boot_rel,"start_clean"},
+                     {rel,"no_dot_erlang","1.0",[]},
 		     {rel,"start_clean","1.0",[]},
 		     {rel,"start_sasl","1.0",[sasl]},
 		     {emu_name,"beam"},
@@ -2549,7 +2549,7 @@ undefined_regexp(_Config) ->
 %% Library functions
 
 erl_libs() ->
-    string:tokens(os:getenv("ERL_LIBS", ""), ":;").
+    string:lexemes(os:getenv("ERL_LIBS", ""), ":;").
 
 datadir(Config) ->
     %% Removes the trailing slash...
@@ -2559,7 +2559,7 @@ latest(App) ->
     AppStr = atom_to_list(App),
     AppDirs = filelib:wildcard(filename:join(code:lib_dir(),AppStr++"-*")),
     [LatestAppDir|_] = lists:reverse(AppDirs),
-    [_,Vsn] = string:tokens(filename:basename(LatestAppDir),"-"),
+    [_,Vsn] = string:lexemes(filename:basename(LatestAppDir),"-"),
     Vsn.
 
 rm_missing_app(Apps) ->
@@ -2635,16 +2635,11 @@ os_cmd(Cmd) when is_list(Cmd) ->
         Return->
             %% Find the position of the status code wich is last in the string
             %% prepended with #
-            case string:rchr(Return, $#) of
-                
-                %% This happens only if the sh command pipe is somehow interrupted
-                0->
-                {98, Return};
-                
-                Position->
-                Result = string:left(Return,Position - 1),
-                Status = string:substr(Return,Position + 1, length(Return) - Position - 1),
-                {list_to_integer(Status), Result}
+            case string:split(Return, "$#", trailing) of
+                [_] -> %% This happens only if the sh command pipe is somehow interrupted
+                    {98, Return};
+                [Result, Status0] ->
+                    {list_to_integer(string:trim(Status0)), Result}
             end
     end.
 
diff --git a/lib/reltool/test/reltool_test_lib.erl b/lib/reltool/test/reltool_test_lib.erl
index 6cc2d259fb..53aeb8c08c 100644
--- a/lib/reltool/test/reltool_test_lib.erl
+++ b/lib/reltool/test/reltool_test_lib.erl
@@ -18,7 +18,7 @@
 %% %CopyrightEnd%
 
 -module(reltool_test_lib).
--compile(export_all).
+-compile([export_all, nowarn_export_all]).
 
 -include("reltool_test_lib.hrl").
 -define(timeout, 20). % minutes
diff --git a/lib/reltool/test/reltool_wx_SUITE.erl b/lib/reltool/test/reltool_wx_SUITE.erl
index ac820db21c..19707894ae 100644
--- a/lib/reltool/test/reltool_wx_SUITE.erl
+++ b/lib/reltool/test/reltool_wx_SUITE.erl
@@ -23,7 +23,7 @@
 	 init_per_suite/1, end_per_suite/1, 
 	 init_per_testcase/2, end_per_testcase/2]).
 
--compile(export_all).
+-export([start_all_windows/1, check_no_win_crash/0, wait_terminate/1]).
 
 -include("reltool_test_lib.hrl").
 
diff --git a/lib/reltool/test/rtt.erl b/lib/reltool/test/rtt.erl
index 173ffc5166..d9e8e5520d 100644
--- a/lib/reltool/test/rtt.erl
+++ b/lib/reltool/test/rtt.erl
@@ -18,7 +18,7 @@
 %% %CopyrightEnd%
 
 -module(rtt).
--compile(export_all).
+-compile([export_all, nowarn_export_all]).
 
 %%  Modules or suites can be shortcuts, for example server expands to reltool_server_SUITE.
 %%  
diff --git a/lib/reltool/vsn.mk b/lib/reltool/vsn.mk
index 3617f6e0d9..49997b1e52 100644
--- a/lib/reltool/vsn.mk
+++ b/lib/reltool/vsn.mk
@@ -1 +1 @@
-RELTOOL_VSN = 0.7.4
+RELTOOL_VSN = 0.7.5
diff --git a/lib/runtime_tools/doc/src/Makefile b/lib/runtime_tools/doc/src/Makefile
index 5ce40bb995..dad229e193 100644
--- a/lib/runtime_tools/doc/src/Makefile
+++ b/lib/runtime_tools/doc/src/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
+#
 # Copyright Ericsson AB 1999-2016. All Rights Reserved.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 include $(ERL_TOP)/make/target.mk
@@ -44,7 +44,7 @@ XML_APPLICATION_FILES = ref_man.xml
 XML_REF3_FILES = dbg.xml dyntrace.xml erts_alloc_config.xml system_information.xml msacc.xml
 XML_REF6_FILES = runtime_tools_app.xml
 
-XML_PART_FILES = part_notes.xml part_notes_history.xml part.xml
+XML_PART_FILES = part.xml
 XML_CHAPTER_FILES = notes.xml notes_history.xml LTTng.xml
 
 GENERATED_XML_FILES = DTRACE.xml SYSTEMTAP.xml
@@ -77,10 +77,10 @@ SPECS_FILES = $(XML_REF3_FILES:%.xml=$(SPECDIR)/specs_%.xml)
 TOP_SPECS_FILE = specs.xml
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 SPECS_ESRC = ../../src
 
@@ -109,18 +109,18 @@ man: $(MAN3_FILES) $(MAN6_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
 	rm -f $(MAN3DIR)/*
 	rm -f $(MAN6DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -136,4 +136,3 @@ release_docs_spec: docs
 	$(INSTALL_DATA) $(MAN6_FILES) "$(RELEASE_PATH)/man/man6"
 
 release_spec:
-
diff --git a/lib/runtime_tools/doc/src/fascicules.xml b/lib/runtime_tools/doc/src/fascicules.xml
deleted file mode 100644
index 1a0bd6ec97..0000000000
--- a/lib/runtime_tools/doc/src/fascicules.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="refman" href="refman_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/runtime_tools/doc/src/note.gif b/lib/runtime_tools/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/runtime_tools/doc/src/note.gif
+++ /dev/null
diff --git a/lib/runtime_tools/doc/src/notes.xml b/lib/runtime_tools/doc/src/notes.xml
index d50994306b..8b4d437c26 100644
--- a/lib/runtime_tools/doc/src/notes.xml
+++ b/lib/runtime_tools/doc/src/notes.xml
@@ -32,6 +32,21 @@
   <p>This document describes the changes made to the Runtime_Tools
     application.</p>
 
+<section><title>Runtime_Tools 1.12.2</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Runtime_Tools 1.12.1</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/runtime_tools/doc/src/part_notes.xml b/lib/runtime_tools/doc/src/part_notes.xml
deleted file mode 100644
index cabf3e39da..0000000000
--- a/lib/runtime_tools/doc/src/part_notes.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Runtime_Tools Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p><em>Runtime_Tools</em> provides low footprint tracing/debugging
-      tools suitable for inclusion in a production system.</p>
-    <p>For information about older versions, see
-      <url href="part_notes_history_frame.html">Release Notes History</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/runtime_tools/doc/src/part_notes_history.xml b/lib/runtime_tools/doc/src/part_notes_history.xml
deleted file mode 100644
index dd1991f23a..0000000000
--- a/lib/runtime_tools/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2006</year>
-      <year>2016</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
- 
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>Runtime_Tools Release Notes History</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p><em>Runtime_Tools</em> provides low footprint tracing/debugging
-      tools suitable for inclusion in a production system.</p>
-  </description>
-  <include file="notes_history"></include>
-</part>
-
diff --git a/lib/runtime_tools/doc/src/warning.gif b/lib/runtime_tools/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/runtime_tools/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/runtime_tools/src/erts_alloc_config.erl b/lib/runtime_tools/src/erts_alloc_config.erl
index 514530332c..342363d08d 100644
--- a/lib/runtime_tools/src/erts_alloc_config.erl
+++ b/lib/runtime_tools/src/erts_alloc_config.erl
@@ -621,7 +621,7 @@ format_header(FTO) ->
 	[Y, Mo, D, H, Mi, S]),
     fcp(FTO,
 	"~s was used when generating the configuration.",
-	[string:strip(erlang:system_info(system_version), both, $\n)]),
+	[string:trim(erlang:system_info(system_version), both, "$\n")]),
     case erlang:system_info(schedulers) of
 	1 -> ok;
 	Schdlrs ->
@@ -698,28 +698,32 @@ fc(IODev, Frmt, Args) ->
     fc(IODev, lists:flatten(io_lib:format(Frmt, Args))).
 
 fc(IODev, String) ->
-    fc_aux(IODev, string:tokens(String, " "), 0).
+    fc_aux(IODev, string:lexemes(String, " "), 0).
 
 fc_aux(_IODev, [], 0) ->
     ok;
 fc_aux(IODev, [], _Len) ->
     format(IODev, "~n");
 fc_aux(IODev, [T|Ts], 0) ->
-    Len = 2 + length(T),
+    Len = 2 + string:length(T),
     format(IODev, "# ~s", [T]),
     fc_aux(IODev, Ts, Len);
-fc_aux(IODev, [T|_Ts] = ATs, Len) when (length(T) + Len) >= ?PRINT_WITDH ->
-    format(IODev, "~n"),
-    fc_aux(IODev, ATs, 0);
-fc_aux(IODev, [T|Ts], Len) ->
-    NewLen = Len + 1 + length(T),
-    format(IODev, " ~s", [T]),
-    fc_aux(IODev, Ts, NewLen).
+fc_aux(IODev, [T|Ts] = ATs, Len) ->
+    TLength = string:length(T),
+    case (TLength + Len) >= ?PRINT_WITDH of
+        true ->
+            format(IODev, "~n"),
+            fc_aux(IODev, ATs, 0);
+        false ->
+            NewLen = Len + 1 + TLength,
+            format(IODev, " ~s", [T]),
+            fc_aux(IODev, Ts, NewLen)
+    end.
 
 %% fcl: format comment line
 fcl(FTO) ->
     EndStr = "# ",
-    Precision = length(EndStr),
+    Precision = string:length(EndStr),
     FieldWidth = -1*(?PRINT_WITDH),
     format(FTO, "~*.*.*s~n", [FieldWidth, Precision, $-, EndStr]).
 
@@ -727,6 +731,6 @@ fcl(FTO, A) when is_atom(A) ->
     fcl(FTO, atom_to_list(A));
 fcl(FTO, Str) when is_list(Str) ->
     Str2 = "# --- " ++ Str ++ " ",
-    Precision = length(Str2),
+    Precision = string:length(Str2),
     FieldWidth = -1*(?PRINT_WITDH),
     format(FTO, "~*.*.*s~n", [FieldWidth, Precision, $-, Str2]).
diff --git a/lib/runtime_tools/src/msacc.erl b/lib/runtime_tools/src/msacc.erl
index 0d9b2690e5..37887cee72 100644
--- a/lib/runtime_tools/src/msacc.erl
+++ b/lib/runtime_tools/src/msacc.erl
@@ -46,7 +46,8 @@
                                                        system := float()}}.
 
 
--type msacc_type() :: scheduler | aux | async.
+-type msacc_type() :: aux | async | dirty_cpu_scheduler
+                    | dirty_io_scheduler | poll | scheduler.
 -type msacc_id() :: non_neg_integer().
 -type msacc_state() :: alloc | aux | bif | busy_wait | check_io |
                        emulator | ets | gc | gc_fullsweep | nif |
diff --git a/lib/runtime_tools/src/observer_backend.erl b/lib/runtime_tools/src/observer_backend.erl
index 7f0c1ac6e4..1b075a507d 100644
--- a/lib/runtime_tools/src/observer_backend.erl
+++ b/lib/runtime_tools/src/observer_backend.erl
@@ -36,6 +36,7 @@
 	 ttb_write_binary/2,
 	 ttb_stop/1,
 	 ttb_fetch/2,
+	 ttb_fetch/3,
          ttb_resume_trace/0,
 	 ttb_get_filenames/1]).
 -define(CHUNKSIZE,8191). % 8 kbytes - 1 byte
@@ -658,22 +659,42 @@ stop_seq_trace() ->
 
 %% Fetch ttb logs from remote node
 ttb_fetch(MetaFile,{Port,Host}) ->
+    ttb_fetch(MetaFile,{Port,Host},undefined).
+ttb_fetch(MetaFile,{Port,Host},MasterEnc) ->
     erlang:process_flag(priority,low),
     Files = ttb_get_filenames(MetaFile),
     {ok, Sock} = gen_tcp:connect(Host, Port, [binary, {packet, 2}]),
-    send_files({Sock,Host},Files),
+    send_files({Sock,Host},Files,MasterEnc,file:native_name_encoding()),
     ok = gen_tcp:close(Sock).
 
 
-send_files({Sock,Host},[File|Files]) ->
+send_files({Sock,Host},[File|Files],MasterEnc,MyEnc) ->
     {ok,Fd} = file:open(File,[raw,read,binary]),
-    ok = gen_tcp:send(Sock,<<1,(list_to_binary(filename:basename(File)))/binary>>),
+    Basename = filename:basename(File),
+    {Code,FilenameBin} = encode_filename(Basename,MasterEnc,MyEnc),
+    ok = gen_tcp:send(Sock,<<Code,FilenameBin/binary>>),
     send_chunks(Sock,Fd),
     ok = file:delete(File),
-    send_files({Sock,Host},Files);
-send_files({_Sock,_Host},[]) ->
+    send_files({Sock,Host},Files,MasterEnc,MyEnc);
+send_files({_Sock,_Host},[],_MasterEnc,_MyEnc) ->
     done.
 
+encode_filename(Basename,undefined,MyEnc) ->
+    %% Compatible with old version of ttb.erl, but no longer crashing
+    %% for code points > 255.
+    {1,unicode:characters_to_binary(Basename,MyEnc,MyEnc)};
+encode_filename(Basename,MasterEnc,MyEnc) ->
+    case unicode:characters_to_binary(Basename,MyEnc,MasterEnc) of
+        Bin when is_binary(Bin) ->
+            %% Encoding succeeded
+            {2,Bin};
+        _ ->
+            %% Can't convert Basename from my encoding to the master
+            %% node's encoding. Doing my best and hoping that master
+            %% node can fix it...
+            {3,unicode:characters_to_binary(Basename,MyEnc,MyEnc)}
+    end.
+
 send_chunks(Sock,Fd) ->
     case file:read(Fd,?CHUNKSIZE) of
 	{ok,Bin} -> 
diff --git a/lib/runtime_tools/src/system_information.erl b/lib/runtime_tools/src/system_information.erl
index df25297eb9..92109c9a74 100644
--- a/lib/runtime_tools/src/system_information.erl
+++ b/lib/runtime_tools/src/system_information.erl
@@ -590,12 +590,12 @@ vsnstr2vsn(VsnStr) ->
     list_to_tuple(lists:map(fun (Part) ->
 				    list_to_integer(Part)
 			    end,
-			    string:tokens(VsnStr, "."))).
+			    string:lexemes(VsnStr, "."))).
 
 rtdepstrs2rtdeps([]) ->
     [];
 rtdepstrs2rtdeps([RTDep | RTDeps]) ->
-    [AppStr, VsnStr] = string:tokens(RTDep, "-"),
+    [AppStr, VsnStr] = string:lexemes(RTDep, "-"),
     [{list_to_atom(AppStr), vsnstr2vsn(VsnStr)} | rtdepstrs2rtdeps(RTDeps)].
 
 build_app_table([], AppTab) ->
diff --git a/lib/runtime_tools/vsn.mk b/lib/runtime_tools/vsn.mk
index 7296221033..d8a4ede136 100644
--- a/lib/runtime_tools/vsn.mk
+++ b/lib/runtime_tools/vsn.mk
@@ -1 +1 @@
-RUNTIME_TOOLS_VSN = 1.12.1
+RUNTIME_TOOLS_VSN = 1.12.2
diff --git a/lib/sasl/doc/src/Makefile b/lib/sasl/doc/src/Makefile
index a66b1f8bcb..76746e44e7 100644
--- a/lib/sasl/doc/src/Makefile
+++ b/lib/sasl/doc/src/Makefile
@@ -9,11 +9,11 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # The Initial Developer of the Original Code is Ericsson Utvecklings AB.
 # Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
 # AB. All Rights Reserved.''
-# 
+#
 #     $Id$
 #
 include $(ERL_TOP)/make/target.mk
@@ -44,7 +44,7 @@ XML_REF4_FILES = appup.xml rel.xml relup.xml script.xml
 
 XML_REF6_FILES = sasl_app.xml
 
-XML_PART_FILES = part.xml part_notes.xml part_notes_history.xml
+XML_PART_FILES = part.xml
 XML_CHAPTER_FILES = sasl_intro.xml \
 	error_logging.xml \
 	notes.xml \
@@ -52,9 +52,7 @@ XML_CHAPTER_FILES = sasl_intro.xml \
 
 BOOK_FILES = book.xml
 
-GIF_FILES = \
-	note.gif \
-	warning.gif
+GIF_FILES =
 
 XML_FILES = \
 	$(BOOK_FILES) $(XML_CHAPTER_FILES) \
@@ -78,14 +76,14 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
 # ----------------------------------------------------
-$(HTMLDIR)/%.gif: %.gif		
+$(HTMLDIR)/%.gif: %.gif
 	$(INSTALL_DATA) $< $@
 
 docs: pdf html man
@@ -100,7 +98,7 @@ man: $(MAN3_FILES) $(MAN4_FILES) $(MAN6_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)	# We depend just to copy them to ../html
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
@@ -108,11 +106,11 @@ clean clean_docs:
 	rm -f $(MAN4DIR)/*
 	rm -f $(MAN6DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -130,4 +128,3 @@ release_docs_spec: docs
 	$(INSTALL_DATA) $(MAN6_FILES) "$(RELEASE_PATH)/man/man6"
 
 release_spec:
-
diff --git a/lib/sasl/doc/src/fascicules.xml b/lib/sasl/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/sasl/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/sasl/doc/src/note.gif b/lib/sasl/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/sasl/doc/src/note.gif
+++ /dev/null
diff --git a/lib/sasl/doc/src/notes.xml b/lib/sasl/doc/src/notes.xml
index bc35939d7e..b144122c4b 100644
--- a/lib/sasl/doc/src/notes.xml
+++ b/lib/sasl/doc/src/notes.xml
@@ -31,6 +31,41 @@
   </header>
   <p>This document describes the changes made to the SASL application.</p>
 
+<section><title>SASL 3.1</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+        <item>
+          <p>
+	    Files generated by <c>release_handler</c> and
+	    <c>reltool</c>, which might contain Unicode characters,
+	    are now encoded as UTF-8 and written with format "~tp" or
+	    "~ts". If the file is to be read by
+	    <c>file:consult/1</c>, an encoding comment is added.</p>
+          <p>
+	    Own Id: OTP-14463</p>
+        </item>
+        <item>
+          <p>
+	    The SASL error logger event handler,
+	    <c>sasl_report_file_h</c>, will now by default open its
+	    log file with encoding UTF-8. This can be overridden when
+	    configuring SASL, see configuration parameter
+	    <c>sasl_error_logger</c> in the SASL reference manual.</p>
+          <p>
+	    Own Id: OTP-14618</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>SASL 3.0.4</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/sasl/doc/src/part_notes.xml b/lib/sasl/doc/src/part_notes.xml
deleted file mode 100644
index 8a32deefd9..0000000000
--- a/lib/sasl/doc/src/part_notes.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>SASL Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The System Architecture Support Libraries, <em>SASL</em>,
-      provides support for alarm and release handling etc.</p>
-    <p>For information about older versions, see
-      <url href="part_notes_history_frame.html">Release Notes History</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/sasl/doc/src/part_notes_history.xml b/lib/sasl/doc/src/part_notes_history.xml
deleted file mode 100644
index abdf09d845..0000000000
--- a/lib/sasl/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2006</year>
-      <year>2016</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
- 
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>SASL Release Notes History</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The System Architecture Support Libraries, <em>SASL</em>,
-      provides support for alarm and release handling etc.</p>
-  </description>
-  <include file="notes_history"></include>
-</part>
-
diff --git a/lib/sasl/doc/src/sasl_app.xml b/lib/sasl/doc/src/sasl_app.xml
index 0576397f9b..e0693fcb60 100644
--- a/lib/sasl/doc/src/sasl_app.xml
+++ b/lib/sasl/doc/src/sasl_app.xml
@@ -103,13 +103,16 @@
           <tag><c>{file,FileName}</c></tag>
           <item><p>Installs <c>sasl_report_file_h</c> in the error logger.
             All reports go to file <c>FileName</c>, which is a
-            string.</p></item>
+            string. The file is opened in <c>write</c> mode with encoding
+	    <c>utf8</c>.</p></item>
           <tag><c>{file,FileName,Modes}</c></tag>
           <item><p>Same as <c>{file,FileName}</c>, except that <c>Modes</c>
             allows you to specify the modes used for opening the <c>FileName</c>
             given to the <seealso marker="kernel:file#open/2">file:open/2</seealso>
-            call. When not specified, <c>Modes</c> defaults to <c>[write]</c>.
-            Use <c>[append]</c> to have the <c>FileName</c> open in append mode.
+            call. By default, the file is opened in <c>write</c> mode
+            with encoding <c>utf8</c>. Use <c>[append]</c> to have
+            the <c>FileName</c> open in append mode. A different
+            encoding can also be specified.
             <c>FileName</c> is a string.</p></item>
           <tag><c>false</c></tag>
           <item><p>No SASL error logger handler is installed.</p></item>
diff --git a/lib/sasl/doc/src/warning.gif b/lib/sasl/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/sasl/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/sasl/src/erlsrv.erl b/lib/sasl/src/erlsrv.erl
index 29d40d362f..e0bbd37ee3 100644
--- a/lib/sasl/src/erlsrv.erl
+++ b/lib/sasl/src/erlsrv.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1998-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1998-2017. All Rights Reserved.
 %% 
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -34,7 +34,7 @@ erlsrv(EVer) ->
     filename:join([Root, "erts-" ++ EVer, "bin", "erlsrv.exe"]).
 
 current_version() ->
-    hd(string:tokens(erlang:system_info(version),"_ ")).
+    hd(string:lexemes(erlang:system_info(version),"_ ")).
 
 %%% Returns {ok, Output} | failed | {error, Reason}
 run_erlsrv(Command) ->
@@ -107,7 +107,7 @@ get_all_services() ->
 	    [];
 	{ok, [_H|T]} ->
 	    F = fun(X) ->
-			hd(string:tokens(X,"\t "))
+			hd(string:lexemes(X,"\t "))
 		end,
 	    lists:map(F,T);
 	_ ->
@@ -191,8 +191,8 @@ get_service(EVer, ServiceName) ->
 	    %%% have in the environment list...
 	    EnvParts = lists:map(
 			 fun(S) ->
-				 X = string:strip(S,left,$\t),
-				 case hd(string:tokens(X,"=")) of
+				 X = string:trim(S, leading, "$\t"),
+				 case hd(string:lexemes(X,"=")) of
 				     X ->
 					 %% Can this happen?
 					 {X,""};
@@ -371,7 +371,7 @@ split_arglist([H|T]) ->
 parse_arglist(Str) ->
     lists:reverse(parse_arglist(Str,[])).
 parse_arglist(Str,Accum) ->
-    Stripped = string:strip(Str,left),
+    Stripped = string:trim(Str, leading),
     case length(Stripped) of
 	0 ->
 	    Accum;
@@ -432,14 +432,9 @@ split_by_env(Data) ->
 			
 
 splitline(Line) ->
-    case string:chr(Line,$:) of
-	0 ->
+    case string:split(Line, ":") of
+        [_] ->
 	    {Line, ""};
-	N ->
-	    case length(string:substr(Line,N)) of
-		1 ->
-		    {string:substr(Line,1,N-1),""};
-		_ ->
-		    {string:substr(Line,1,N-1),string:substr(Line,N+2)}
-	    end
+        [N, V] ->
+            {N, string:slice(V, 1)}
     end.
diff --git a/lib/sasl/src/format_lib_supp.erl b/lib/sasl/src/format_lib_supp.erl
index 80dcdc91da..2d37dfe117 100644
--- a/lib/sasl/src/format_lib_supp.erl
+++ b/lib/sasl/src/format_lib_supp.erl
@@ -86,8 +86,10 @@ print_data(Device, Line, [{Key, Value}|T]) ->
 print_data(Device, Line, [Value|T]) ->
     Modifier = misc_supp:modifier(Device),
     io:format(Device, "~"++Modifier++"p~n", [Value]),
-    print_data(Device, Line, T).
-
+    print_data(Device, Line, T);
+print_data(Device, _Line, Value) ->
+    Modifier = misc_supp:modifier(Device),
+    io:format(Device, "~"++Modifier++"p~n", [Value]).
 
 print_items(Device, Line, {Name, Items}) ->
     print_items(Device, Line, Name, Items).
@@ -100,13 +102,13 @@ print_newlines(Device, N) when N > 0 ->
 print_one_line(Device, Line, Key, Value) ->
     Modifier = misc_supp:modifier(Device),
     StrKey = term_to_string(Key,Modifier),
-    KeyLen = lists:min([length(StrKey), Line]),
+    KeyLen = lists:min([string:length(StrKey), Line]),
     ValueLen = Line - KeyLen,
     Format1 = lists:concat(["~-", KeyLen, Modifier, "s"]),
     Format2 = lists:concat(["~", ValueLen, Modifier, "s~n"]),
     io:format(Device, Format1, [StrKey]),
     Try = term_to_string(Value,Modifier),
-    Length = length(Try),
+    Length = string:length(Try),
     if
 	Length < ValueLen ->
 	    io:format(Device, Format2, [Try]);
@@ -117,7 +119,7 @@ print_one_line(Device, Line, Key, Value) ->
     end.
 
 term_to_string(Value,Modifier) ->
-    lists:flatten(io_lib:format(get_format(Value,Modifier), [Value])).
+    io_lib:format(get_format(Value,Modifier), [Value]).
 
 get_format([],_) ->
     "~p";
diff --git a/lib/sasl/src/rb.erl b/lib/sasl/src/rb.erl
index 6595d29a9c..28829132a1 100644
--- a/lib/sasl/src/rb.erl
+++ b/lib/sasl/src/rb.erl
@@ -586,14 +586,14 @@ find_widths([], _Modifier, DescrWidth, DateWidth, Data) ->
     {DescrWidth+1, DateWidth+1, lists:reverse(Data)};
 find_widths([H|T], Modifier, DescrWidth, DateWidth, Data) ->
     DescrTerm = element(3,H),
-    Descr = lists:flatten(io_lib:format("~"++Modifier++"w", [DescrTerm])),
-    DescrTry = length(Descr),
+    Descr = io_lib:format("~"++Modifier++"w", [DescrTerm]),
+    DescrTry = string:length(Descr),
     NewDescrWidth =
         if
             DescrTry > DescrWidth -> DescrTry;
             true -> DescrWidth
         end,
-    DateTry = length(element(4, H)),
+    DateTry = string:length(element(4, H)),
     NewDateWitdh =
         if
             DateTry > DateWidth -> DateTry;
diff --git a/lib/sasl/src/rb_format_supp.erl b/lib/sasl/src/rb_format_supp.erl
index 1eda43dae4..b5b7aba151 100644
--- a/lib/sasl/src/rb_format_supp.erl
+++ b/lib/sasl/src/rb_format_supp.erl
@@ -108,7 +108,7 @@ print(Date, Report, Device) ->
 
 format_h(Line, Header, Pid, Date) ->
     NHeader = lists:flatten(io_lib:format("~s  ~w", [Header, Pid])), 
-    DateLen = length(Date),
+    DateLen = string:length(Date),
     HeaderLen = Line - DateLen,
     Format = lists:concat(["~-", HeaderLen, "s~", DateLen, "s"]),
     io_lib:format(Format, [NHeader, Date]).
diff --git a/lib/sasl/src/release_handler.erl b/lib/sasl/src/release_handler.erl
index d0a7c7332d..bfa49fc05d 100644
--- a/lib/sasl/src/release_handler.erl
+++ b/lib/sasl/src/release_handler.erl
@@ -420,7 +420,7 @@ upgrade_app(App, NewDir) ->
 %%          located in the ebin dir of the _current_ version
 %%-----------------------------------------------------------------
 downgrade_app(App, OldDir) ->
-    case string:tokens(filename:basename(OldDir), "-") of
+    case string:lexemes(filename:basename(OldDir), "-") of
 	[_AppS, OldVsn] ->
 	    downgrade_app(App, OldVsn, OldDir);
 	_ ->
@@ -1174,8 +1174,8 @@ new_emulator_rm_tmp_release(_,_,_,_,Releases,_) ->
 
 %% Rename the tempoarary service (for erts ugprade) to the real ToVsn
 rename_tmp_service(EVsn,TmpVsn,NewVsn) ->
-    FromName = hd(string:tokens(atom_to_list(node()),"@")) ++ "_" ++ TmpVsn,
-    ToName = hd(string:tokens(atom_to_list(node()),"@")) ++ "_" ++ NewVsn,
+    FromName = hd(string:lexemes(atom_to_list(node()),"@")) ++ "_" ++ TmpVsn,
+    ToName = hd(string:lexemes(atom_to_list(node()),"@")) ++ "_" ++ NewVsn,
     case erlsrv:get_service(EVsn,ToName) of
 	{error, _Error} ->
 	    ok;
@@ -1207,9 +1207,9 @@ rename_service(EVsn,FromName,ToName) ->
 %%% in which case we try to rename the old service to the new name and try
 %%% to update heart's view of what service we are really running.
 do_make_services_permanent(PermanentVsn,Vsn, PermanentEVsn, EVsn) ->
-    PermName = hd(string:tokens(atom_to_list(node()),"@")) 
+    PermName = hd(string:lexemes(atom_to_list(node()),"@"))
 	++ "_" ++ PermanentVsn,
-    Name = hd(string:tokens(atom_to_list(node()),"@")) 
+    Name = hd(string:lexemes(atom_to_list(node()),"@"))
 	++ "_" ++ Vsn,
     case erlsrv:get_service(EVsn,Name) of
 	{error, _Error} ->
@@ -1296,7 +1296,7 @@ do_make_permanent(#state{releases = Releases,
 
 
 do_back_service(OldVersion, CurrentVersion,OldEVsn,CurrentEVsn) ->
-    NN = hd(string:tokens(atom_to_list(node()),"@")),
+    NN = hd(string:lexemes(atom_to_list(node()),"@")),
     OldName = NN ++ "_" ++ OldVersion,
     CurrentName = NN ++ "_" ++ CurrentVersion,
     UpdData = case erlsrv:get_service(CurrentEVsn,CurrentName) of
@@ -1385,7 +1385,7 @@ do_remove_service(Vsn) ->
     %% Very unconditionally remove the service.
     %% Note that the service could already have been removed when
     %% making another release permanent.
-    ServiceName = hd(string:tokens(atom_to_list(node()),"@")) 
+    ServiceName = hd(string:lexemes(atom_to_list(node()),"@"))
 	++ "_" ++ Vsn,
     case erlsrv:get_service(ServiceName) of
 	{error, _Error} ->
@@ -1670,9 +1670,9 @@ flush() ->
 prepare_restart_nt(#release{erts_vsn = EVsn, vsn = Vsn},
 		   #release{erts_vsn = PermEVsn, vsn = PermVsn},
 		   DataFileName) ->
-    CurrentServiceName = hd(string:tokens(atom_to_list(node()),"@")) 
+    CurrentServiceName = hd(string:lexemes(atom_to_list(node()),"@"))
 	++ "_" ++ PermVsn,
-    FutureServiceName = hd(string:tokens(atom_to_list(node()),"@")) 
+    FutureServiceName = hd(string:lexemes(atom_to_list(node()),"@"))
 	++ "_" ++ Vsn,
     CurrentService = case erlsrv:get_service(PermEVsn,CurrentServiceName) of
 			 {error, _} = Error1 ->
diff --git a/lib/sasl/src/sasl.app.src b/lib/sasl/src/sasl.app.src
index d75543a91b..1e8e58a978 100644
--- a/lib/sasl/src/sasl.app.src
+++ b/lib/sasl/src/sasl.app.src
@@ -43,6 +43,6 @@
     {env, [{sasl_error_logger, tty},
            {errlog_type, all}]},
     {mod, {sasl, []}},
-    {runtime_dependencies, ["tools-2.6.14","stdlib-3.0","kernel-5.0",
-			    "erts-8.1"]}]}.
+    {runtime_dependencies, ["tools-2.6.14","stdlib-3.4","kernel-5.3",
+			    "erts-9.0"]}]}.
 
diff --git a/lib/sasl/src/sasl_report.erl b/lib/sasl/src/sasl_report.erl
index eb454155d5..e6556ec6ce 100644
--- a/lib/sasl/src/sasl_report.erl
+++ b/lib/sasl/src/sasl_report.erl
@@ -47,6 +47,7 @@ io_report(_IO, _Fd, _, _) ->
 is_my_error_report(all, Type)   ->  is_my_error_report(Type);
 is_my_error_report(error, Type) ->  is_my_error_report(Type);
 is_my_error_report(_, _Type)    ->  false.
+
 is_my_error_report(supervisor_report)   -> true;
 is_my_error_report(crash_report)        -> true;
 is_my_error_report(_)                   -> false.
@@ -54,6 +55,7 @@ is_my_error_report(_)                   -> false.
 is_my_info_report(all, Type)      -> is_my_info_report(Type);
 is_my_info_report(progress, Type) -> is_my_info_report(Type);
 is_my_info_report(_, _Type)       -> false.
+
 is_my_info_report(progress)  -> true;
 is_my_info_report(_)                    -> false.
 
@@ -62,46 +64,65 @@ write_report2(IO, Fd, Head, supervisor_report, Report) ->
     Context = sup_get(errorContext, Report),
     Reason = sup_get(reason, Report),
     Offender = sup_get(offender, Report),
-    {FmtString,Args} = supervisor_format([Name,Context,Reason,Offender]),
-    write_report_action(IO, Fd, Head, FmtString, Args);
+    Enc = encoding(Fd),
+    {FmtString,Args} = supervisor_format([Name,Context,Reason,Offender], Enc),
+    String = io_lib:format(FmtString, Args),
+    write_report_action(IO, Fd, Head, String);
 write_report2(IO, Fd, Head, progress, Report) ->
-    Format = format_key_val(Report),
-    write_report_action(IO, Fd, Head, "~s", [Format]);
+    Encoding = encoding(Fd),
+    Depth = error_logger:get_format_depth(),
+    String = format_key_val(Report, Encoding, Depth),
+    write_report_action(IO, Fd, Head, String);
 write_report2(IO, Fd, Head, crash_report, Report) ->
+    Encoding = encoding(Fd),
     Depth = error_logger:get_format_depth(),
-    Format = proc_lib:format(Report, latin1, Depth),
-    write_report_action(IO, Fd, Head, "~s", [Format]).
-
-supervisor_format(Args0) ->
-    case error_logger:get_format_depth() of
-	unlimited ->
-	    {"     Supervisor: ~p~n"
-	     "     Context:    ~p~n"
-	     "     Reason:     ~80.18p~n"
-	     "     Offender:   ~80.18p~n~n",
-	     Args0};
-	Depth ->
-	    [A,B,C,D] = Args0,
-	    Args = [A,Depth,B,Depth,C,Depth,D,Depth],
-	    {"     Supervisor: ~P~n"
-	     "     Context:    ~P~n"
-	     "     Reason:     ~80.18P~n"
-	     "     Offender:   ~80.18P~n~n",
-	     Args}
-    end.
-
-write_report_action(IO, Fd, Head, Format, Args) ->
-    S = [Head|io_lib:format(Format, Args)],
+    String = proc_lib:format(Report, Encoding, Depth),
+    write_report_action(IO, Fd, Head, String).
+
+supervisor_format(Args0, Encoding) ->
+    {P, Tl} = p(Encoding, error_logger:get_format_depth()),
+    [A,B,C,D] = Args0,
+    Args = [A|Tl] ++ [B|Tl] ++ [C|Tl] ++ [D|Tl],
+    {"     Supervisor: ~" ++ P ++ "\n"
+     "     Context:    ~" ++ P ++ "\n"
+     "     Reason:     ~80.18" ++ P ++ "\n"
+     "     Offender:   ~80.18" ++ P ++ "\n~n",
+     Args}.
+
+write_report_action(IO, Fd, Head, String) ->
+    S = [Head|String],
     case IO of
 	io -> io:put_chars(Fd, S);
 	io_lib -> S
     end.
 
-format_key_val([{Tag,Data}|Rep]) ->
-    io_lib:format("    ~16w: ~p~n",[Tag,Data]) ++ format_key_val(Rep);
-format_key_val(_) ->
+format_key_val(Rep, Encoding, Depth) ->
+    {P, Tl} = p(Encoding, Depth),
+    format_key_val1(Rep, P, Tl).
+
+format_key_val1([{Tag,Data}|Rep], P, Tl) ->
+    (io_lib:format("    ~16w: ~" ++ P ++ "\n", [Tag, Data|Tl]) ++
+     format_key_val1(Rep, P, Tl));
+format_key_val1(_, _, _) ->
     [].
 
+p(Encoding, Depth) ->
+    {Letter, Tl}  = case Depth of
+                        unlimited -> {"p", []};
+                        _         -> {"P", [Depth]}
+                    end,
+    P = modifier(Encoding) ++ Letter,
+    {P, Tl}.
+
+encoding(IO) ->
+    case lists:keyfind(encoding, 1, io:getopts(IO)) of
+	false -> latin1;
+	{encoding, Enc} -> Enc
+    end.
+
+modifier(latin1) -> "";
+modifier(_) -> "t".
+
 sup_get(Tag, Report) ->
     case lists:keysearch(Tag, 1, Report) of
 	{value, {_, Value}} ->
diff --git a/lib/sasl/src/sasl_report_file_h.erl b/lib/sasl/src/sasl_report_file_h.erl
index 21746839fa..d3b5c7dc0d 100644
--- a/lib/sasl/src/sasl_report_file_h.erl
+++ b/lib/sasl/src/sasl_report_file_h.erl
@@ -29,15 +29,27 @@
 	 handle_event/2, handle_call/2, handle_info/2,
 	 terminate/2]).
 
-init({File, Modes, Type}) when is_list(Modes) ->
+init({File, Modes0, Type}) when is_list(Modes0) ->
     process_flag(trap_exit, true),
+    Modes1 =
+        case lists:keymember(encoding,1,Modes0) of
+            true -> Modes0;
+            false -> [{encoding,utf8}|Modes0]
+        end,
+    Modes =
+        case [M || M <- Modes1, lists:member(M,[write,append,exclusive])] of
+            [] ->
+                [write|Modes1];
+            _ ->
+                Modes1
+        end,
     case file:open(File, Modes) of
 	{ok,Fd} ->
 	    {ok, {Fd, File, Type}};
 	What ->
 	    What
     end.
-    
+
 handle_event({_Type, GL, _Msg}, State) when node(GL) /= node() ->
     {ok, State};
 handle_event(Event, {Fd, File, Type}) ->
diff --git a/lib/sasl/test/rb_SUITE.erl b/lib/sasl/test/rb_SUITE.erl
index 426dedbab5..4ba2540545 100644
--- a/lib/sasl/test/rb_SUITE.erl
+++ b/lib/sasl/test/rb_SUITE.erl
@@ -36,6 +36,7 @@ no_group_cases() ->
 
 groups() ->
     [{running_error_logger,[shuffle],[show,
+                                      show_other,
 				      list,
 				      rescan,
 				      start_stop_log,
@@ -165,6 +166,23 @@ show(Config) ->
 
     ok.
 
+show_other(Config) ->
+    PrivDir = ?config(priv_dir,Config),
+    OutFile = filename:join(PrivDir,"rb_SUITE_log.txt"),
+
+    %% Insert some reports in the error log and start rb
+    error_logger:info_report([rb_test_term_in_list]),
+    error_logger:info_report(rb_test_term_no_list),
+    ok = start_rb(OutFile),
+
+    %% Show by type and check content
+    [{_,I1},{_,I2}] = check_report(fun() -> rb:show(info_report) end,OutFile),
+
+    true = contains(I1,"rb_test_term_no_list"),
+    true = contains(I2,"rb_test_term_in_list"),
+
+    ok.
+
 list(Config) ->
     PrivDir = ?config(priv_dir,Config),
     OutFile = filename:join(PrivDir,"rb_SUITE_log.txt"),
diff --git a/lib/sasl/test/release_handler_SUITE.erl b/lib/sasl/test/release_handler_SUITE.erl
index 50932e89e4..63b48e7a4e 100644
--- a/lib/sasl/test/release_handler_SUITE.erl
+++ b/lib/sasl/test/release_handler_SUITE.erl
@@ -1835,24 +1835,32 @@ otp_10463_upgrade_script_regexp(cleanup,Config) ->
     code:del_path(filename:join([DataDir,regexp_appup,app1,ebin])),
     ok.
 
-no_dot_erlang(Conf) ->
-    PrivDir = ?config(data_dir,Conf),
-    {ok, OrigWd} = file:get_cwd(),
-    try
-	ok = file:set_cwd(PrivDir),
-
-	{ok, Wd} = file:get_cwd(),
-	io:format("Dir ~ts~n", [Wd]),
+no_dot_erlang(_Conf) ->
+    case init:get_argument(home) of
+        {ok,[[Home]]} when is_list(Home) ->
+            no_dot_erlang_1(Home);
+        _ -> ok
+    end.
 
+no_dot_erlang_1(Home) ->
+    DotErlang = filename:join(Home, ".erlang"),
+    BupErlang = filename:join(Home, ".erlang_testbup"),
+    try
+        {ok, Wd} = file:get_cwd(),
+        case filelib:is_file(DotErlang) of
+            true -> {ok, _} = file:copy(DotErlang, BupErlang);
+            false -> ok
+        end,
 	Erl0 =  filename:join([code:root_dir(),"bin","erl"]),
 	Erl = filename:nativename(Erl0),
 	Quote = "\"",
 	Args = " -noinput -run c pwd -run erlang halt",
-	ok = file:write_file(".erlang", <<"io:put_chars(\"DOT_ERLANG_READ\\n\").\n">>),
+	ok = file:write_file(DotErlang, <<"io:put_chars(\"DOT_ERLANG_READ\\n\").\n">>),
 
 	CMD1 = Quote ++ Erl ++ Quote ++ Args ,
 	case os:cmd(CMD1) of
-	    "DOT_ERLANG_READ" ++ _ -> ok;
+	    "DOT_ERLANG_READ" ++ _ ->
+                io:format("~p: Success~n", [?LINE]);
 	    Other1 ->
 		io:format("Failed: ~ts~n",[CMD1]),
 		io:format("Expected: ~s ++ _~n",["DOT_ERLANG_READ "]),
@@ -1862,7 +1870,7 @@ no_dot_erlang(Conf) ->
 	NO_DOT_ERL = " -boot no_dot_erlang",
 	CMD2 = Quote ++ Erl ++ Quote ++ NO_DOT_ERL ++ Args,
 	case lists:prefix(Wd, Other2 = os:cmd(CMD2)) of
-	    true -> ok;
+	    true -> io:format("~p: Success~n", [?LINE]);
 	    false ->
 		io:format("Failed: ~ts~n",[CMD2]),
 		io:format("Expected: ~s~n",["TESTOK"]),
@@ -1870,9 +1878,13 @@ no_dot_erlang(Conf) ->
 		exit({failed_to_start, no_dot_erlang})
 	end
     after
-	_ = file:delete(".erlang"),
-	ok = file:set_cwd(OrigWd),
-	ok
+        case filelib:is_file(BupErlang) of
+            true ->
+                {ok, _} = file:copy(BupErlang, DotErlang),
+                _ = file:delete(BupErlang);
+            false ->
+                _ = file:delete(DotErlang)
+        end
     end.
 
 %%%-----------------------------------------------------------------
diff --git a/lib/sasl/test/sasl_report_SUITE.erl b/lib/sasl/test/sasl_report_SUITE.erl
index 53fb614921..92df5e6e40 100644
--- a/lib/sasl/test/sasl_report_SUITE.erl
+++ b/lib/sasl/test/sasl_report_SUITE.erl
@@ -20,7 +20,7 @@
 -module(sasl_report_SUITE).
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
 	 init_per_group/2,end_per_group/2]).
--export([gen_server_crash/1]).
+-export([gen_server_crash/1, gen_server_crash_unicode/1]).
 
 -export([crash_me/0,start_link/0,init/1,handle_cast/2,terminate/2]).
 
@@ -29,7 +29,7 @@
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() ->
-    [gen_server_crash].
+    [gen_server_crash, gen_server_crash_unicode].
 
 groups() ->
     [].
@@ -47,8 +47,14 @@ end_per_group(_GroupName, Config) ->
     Config.
 
 gen_server_crash(Config) ->
+    gen_server_crash(Config, latin1).
+
+gen_server_crash_unicode(Config) ->
+    gen_server_crash(Config, unicode).
+
+gen_server_crash(Config, Encoding) ->
     try
-	do_gen_server_crash(Config)
+	do_gen_server_crash(Config, Encoding)
     after
 	error_logger:tty(true),
 	ok = application:unset_env(sasl, sasl_error_logger),
@@ -57,7 +63,7 @@ gen_server_crash(Config) ->
     end,
     ok.
 
-do_gen_server_crash(Config) ->
+do_gen_server_crash(Config, Encoding) ->
     PrivDir = ?config(priv_dir, Config),
     LogDir = filename:join(PrivDir, ?MODULE),
     KernelLog = filename:join(LogDir, "kernel.log"),
@@ -67,7 +73,8 @@ do_gen_server_crash(Config) ->
     error_logger:delete_report_handler(cth_log_redirect),
     error_logger:tty(false),
     application:stop(sasl),
-    ok = application:set_env(sasl, sasl_error_logger, {file,SaslLog},
+    Modes = [write, {encoding, Encoding}],
+    ok = application:set_env(sasl, sasl_error_logger, {file,SaslLog,Modes},
 			     [{persistent,true}]),
     application:set_env(kernel, error_logger_format_depth, 30),
     error_logger:logfile({open,KernelLog}),
@@ -78,16 +85,21 @@ do_gen_server_crash(Config) ->
 
     error_logger:logfile(close),
 
-    check_file(KernelLog, 70000, 150000),
-    check_file(SaslLog, 100000, 150000),
+    check_file(KernelLog, utf8, 70000, 150000),
+    check_file(SaslLog, Encoding, 70000, 150000),
 
+    %% ok = file:delete(KernelLog),
+    %% ok = file:delete(SaslLog),
     ok.
 
-check_file(File, Min, Max) ->
+check_file(File, Encoding, Min, Max) ->
     {ok,Bin} = file:read_file(File),
     Base = filename:basename(File),
     io:format("*** Contents of ~s ***\n", [Base]),
-    io:put_chars([Bin,"\n"]),
+    case Encoding of
+        latin1 -> io:format("~s\n", [Bin]);
+        _ -> io:format("~ts\n", [Bin])
+    end,
     Sz = byte_size(Bin),
     io:format("Size: ~p (allowed range is ~p..~p)\n",
 	      [Sz,Min,Max]),
@@ -110,7 +122,9 @@ crash_me() ->
     {ok,SuperPid} = supervisor:start_link(sasl_report_suite_supervisor, []),
     [{Id,Pid,_,_}] = supervisor:which_children(SuperPid),
     HugeData = gb_sets:from_list(lists:seq(1, 100000)),
-    gen_server:cast(Pid, HugeData),
+    SomeData1 = list_to_atom([246]),
+    SomeData2 = list_to_atom([1024]),
+    gen_server:cast(Pid, {HugeData,SomeData1,SomeData2}),
     Ref = monitor(process, Pid),
     receive
 	{'DOWN',Ref,process,Pid,_} ->
@@ -129,6 +143,12 @@ init(_) ->
 
 handle_cast(Big, St) ->
     Seq = lists:seq(1, 10000),
+    Latin1Atom = list_to_atom([246]),
+    UnicodeAtom = list_to_atom([1024]),
+    put(Latin1Atom, Latin1Atom),
+    put(UnicodeAtom, UnicodeAtom),
+    self() ! Latin1Atom,
+    self() ! UnicodeAtom,
     self() ! Seq,
     self() ! Seq,
     self() ! Seq,
diff --git a/lib/sasl/vsn.mk b/lib/sasl/vsn.mk
index 2608ca5e00..e980a42688 100644
--- a/lib/sasl/vsn.mk
+++ b/lib/sasl/vsn.mk
@@ -1 +1 @@
-SASL_VSN = 3.0.4
+SASL_VSN = 3.1
diff --git a/lib/snmp/doc/src/Makefile b/lib/snmp/doc/src/Makefile
index 9ea5dba0c5..3ebee792f9 100644
--- a/lib/snmp/doc/src/Makefile
+++ b/lib/snmp/doc/src/Makefile
@@ -1,9 +1,9 @@
 #-*-makefile-*-   ; force emacs to enter makefile-mode
 
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 1997-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 1997-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -15,7 +15,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 
 include $(ERL_TOP)/make/target.mk
@@ -66,7 +66,6 @@ HTML_REF6_FILES = $(XML_REF6_FILES:%.xml=$(HTMLDIR)/%.html)
 HTML_CHAP_FILES = $(XML_CHAPTER_FILES:%.xml=$(HTMLDIR)/%.html)
 
 EXTRA_FILES = \
-        summary.html.src \
         $(DEFAULT_HTML_FILES)  \
         $(HTML_REF1_FILES)     \
         $(HTML_REF3_FILES)     \
@@ -85,18 +84,14 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
-INDEX_FILE   = index.html
-INDEX_SRC    = $(INDEX_FILE).src
-INDEX_TARGET = $(DOCDIR)/$(INDEX_FILE)
-
 GIF_TARGETS = $(GIF_FILES:%=$(HTMLDIR)/%)
 
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -106,21 +101,17 @@ $(HTMLDIR)/%.gif: %.gif			# Copy them to ../html
 
 docs: pdf html man
 
-ldocs: local_docs $(INDEX_TARGET)
+ldocs: local_docs
 
 $(TOP_PDF_FILE): $(XML_FILES)
 
 pdf: $(TOP_PDF_FILE)
 
 html: gifs $(HTML_REF_MAN_FILE)
-html2: html $(INDEX_TARGET)
 
 clean clean_docs: clean_html clean_man clean_pdf
 	rm -f errs core *~
 
-$(INDEX_TARGET): $(INDEX_SRC) ../../vsn.mk	# Create top make file 
-	$(vsn_verbose)sed -e 's;%VSN%;$(VSN);' $< > $@	# inserting version number
-
 man: man1 man3 man6 man7
 
 man1: $(MAN1_FILES)
@@ -133,7 +124,7 @@ man7: $(MAN7_FILES)
 
 gifs: $(GIF_TARGETS)
 
-debug opt: 
+debug opt:
 
 clean_pdf:
 	@echo "cleaning pdf:"
@@ -149,7 +140,6 @@ clean_man:
 clean_html:
 	@echo "cleaning html:"
 	rm -rf $(HTMLDIR)/*
-	rm -f $(INDEX_TARGET)
 
 $(MAN7DIR)/%.7: $(MIBSDIR)/%.mib
 	@echo "processing $*"
@@ -162,7 +152,7 @@ $(MAN7DIR)/%.7: $(MIBSDIR)/%.mib
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 
 $(MAN1DIR)/snmpc.1: snmpc_cmd.xml
 	date=`date +"%B %e %Y"`; \
@@ -194,7 +184,7 @@ info: info_xml info_man info_html
 	@echo "MAN6DIR: $(MAN6DIR)"
 	@echo "MAN7DIR: $(MAN7DIR)"
 
-info_man: 
+info_man:
 	@echo "man files:"
 	@echo "MAN1_FILES = $(MAN1_FILES)"
 	@echo "MAN3_FILES = $(MAN3_FILES)"
@@ -203,7 +193,7 @@ info_man:
 	@echo ""
 	@echo "MIB_FILES  = $(MIB_FILES)"
 
-info_xml: 
+info_xml:
 	@echo "xml files:"
 #	@echo "XML_REF1_FILES        = $(XML_REF1_FILES)"
 	@echo "XML_REF3_FILES        = $(XML_REF3_FILES)"
@@ -221,9 +211,7 @@ info_xml:
 info_html:
 	@echo "html files:"
 	@echo "DOCDIR = $(DOCDIR)"
-	@echo "INDEX_FILE = $(INDEX_FILE)"
-	@echo "INDEX_SRC = $(INDEX_SRC)"
-	@echo "INDEX_TARGET = $(INDEX_TARGET)"
+	@echo "HTML_REF_MAN_FILE = $(HTML_REF_MAN_FILE)"
 	@echo ""
 	@echo "HTMLDIR = $(HTMLDIR)"
 	@echo "HTML_APP_FILES  = $(HTML_APP_FILES)"
diff --git a/lib/snmp/doc/src/book.gif b/lib/snmp/doc/src/book.gif
deleted file mode 100644
index 94b3868792..0000000000
--- a/lib/snmp/doc/src/book.gif
+++ /dev/null
diff --git a/lib/snmp/doc/src/fascicules.xml b/lib/snmp/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/snmp/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/snmp/doc/src/files.mk b/lib/snmp/doc/src/files.mk
index 5aeae19105..f364cb6fa5 100644
--- a/lib/snmp/doc/src/files.mk
+++ b/lib/snmp/doc/src/files.mk
@@ -1,9 +1,9 @@
 #-*-makefile-*-   ; force emacs to enter makefile-mode
 
 # %CopyrightBegin%
-# 
-# Copyright Ericsson AB 2001-2016. All Rights Reserved.
-# 
+#
+# Copyright Ericsson AB 2001-2017. All Rights Reserved.
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -15,7 +15,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 
 XML_APPLICATION_FILES = \
@@ -81,9 +81,7 @@ XML_REF3_FILES = \
 XML_REF6_FILES = snmp_app.xml
 
 XML_PART_FILES =  \
-	part.xml \
-	part_notes.xml \
-	part_notes_history.xml
+	part.xml
 
 XML_CHAPTER_FILES = \
 	snmp_intro.xml \
@@ -115,23 +113,16 @@ XML_FILES = $(BOOK_FILES)        \
             $(XML_REF6_FILES)    \
             $(XML_APPLICATION_FILES)
 
-GIF_FILES = book.gif \
+GIF_FILES = \
 	getnext1.gif \
 	getnext2.gif \
 	getnext3.gif \
 	getnext4.gif \
 	snmp_agent_netif_1.gif \
 	snmp_manager_netif_1.gif \
-	min_head.gif \
-	note.gif \
-	notes.gif \
-	ref_man.gif \
 	snmp-um-1-image-1.gif \
 	snmp-um-1-image-2.gif \
 	snmp-um-1-image-3.gif \
-	snmp.gif \
-	user_guide.gif \
-	warning.gif \
 	MIB_mechanism.gif
 
 PS_FILES = getnext1.ps \
diff --git a/lib/snmp/doc/src/index.html.src b/lib/snmp/doc/src/index.html.src
deleted file mode 100644
index e1b6be4d1f..0000000000
--- a/lib/snmp/doc/src/index.html.src
+++ /dev/null
@@ -1,99 +0,0 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<!-- This file is obsolete -->
-<HTML>
-<!-- 
- ``Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- 
- The Initial Developer of the Original Code is Ericsson Utvecklings AB.
- Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
- AB. All Rights Reserved.''
- 
-     $Id$
--->
-<HEAD>
-<TITLE>SNMP %VSN%</TITLE>
-</HEAD>
-
-<BODY BGCOLOR="#FFFFFF">
-
-<CENTER>
-<A HREF="http://www.erlang.se/"><IMG  ALT="Erlang/OTP" BORDER=0 SRC="html/min_head.gif"></A><BR>
-
-<FONT SIZE="-1">
-[<A HREF="../../../doc/index.html">Up</A> |
-<A HREF="http://www.erlang.se/">Erlang/OTP</A>]
-</FONT><BR>
-
-<P><FONT SIZE="+3">
-SNMP
-</FONT><BR>  
-Version %VSN%
-</CENTER>
-
-<P><TABLE>
-<TR>
-<TD>
-<IMG ALIGN=LEFT ALT="SNMP" SRC="html/snmp.gif">
-</TD>
-
-<TD>
-<P>A bilingual Simple Network Management Protocol application,
- featuring an Extensible Agent, a simple manager, a MIB compiler 
- and facilities for implementing SNMP MIBs etc.
-</TD>
-</TR>
-</TABLE>
-
-<P><CENTER>
-<TABLE CELLPADDING=15>
-<TR>
-<TD ALIGN=CENTER>
-<A HREF="html/users_guide.html"><IMG ALT="User's Guide" BORDER=0 SRC="html/user_guide.gif"></A><BR>
-<FONT SIZE="-1">
-<A HREF="html/users_guide.html">User's Guide</A>
-</FONT>
-</TD>
-
-<TD ALIGN=CENTER>
-<A HREF="html/index.html"><IMG ALT="Reference Manual" BORDER=0 SRC="html/ref_man.gif"></A><BR>
-<FONT SIZE="-1">
-<A HREF="html/index.html">Reference Manual</A>
-</FONT>
-</TD>
-
-<TD ALIGN=CENTER>
-<A HREF="html/release_notes.html"><IMG ALT="Release Notes" BORDER=0 SRC="html/notes.gif"></A><BR>
-<FONT SIZE="-1">
-<A HREF="html/release_notes.html">Release Notes</A>
-</FONT>
-</TD>
-
-<TD ALIGN=CENTER>
-<A HREF="pdf/snmp-%VSN%.pdf"><IMG ALT="Off-Print" BORDER=0 SRC="html/book.gif"></A><BR>
-<FONT SIZE="-1">
-<A HREF="pdf/snmp-%VSN%.pdf">Off-Print</A>
-</FONT>
-</TD>
-</TR>
-</TABLE>
-</CENTER>
-
-<P><CENTER>
-<HR>
-<FONT SIZE="-1">
-Copyright &copy; 1991-2001
-<A HREF="http://www.erlang.se/">Ericsson Utvecklings AB</A>
-</FONT>
-</CENTER>
-</BODY>
-</HTML>
diff --git a/lib/snmp/doc/src/min_head.gif b/lib/snmp/doc/src/min_head.gif
deleted file mode 100644
index 67948a6378..0000000000
--- a/lib/snmp/doc/src/min_head.gif
+++ /dev/null
diff --git a/lib/snmp/doc/src/note.gif b/lib/snmp/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/snmp/doc/src/note.gif
+++ /dev/null
diff --git a/lib/snmp/doc/src/notes.gif b/lib/snmp/doc/src/notes.gif
deleted file mode 100644
index e000cca26a..0000000000
--- a/lib/snmp/doc/src/notes.gif
+++ /dev/null
diff --git a/lib/snmp/doc/src/notes.xml b/lib/snmp/doc/src/notes.xml
index b902e421ca..6bdcae5dd7 100644
--- a/lib/snmp/doc/src/notes.xml
+++ b/lib/snmp/doc/src/notes.xml
@@ -11,7 +11,7 @@
       Licensed under the Apache License, Version 2.0 (the "License");
       you may not use this file except in compliance with the License.
       You may obtain a copy of the License at
- 
+
           http://www.apache.org/licenses/LICENSE-2.0
 
       Unless required by applicable law or agreed to in writing, software
@@ -19,7 +19,7 @@
       WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       See the License for the specific language governing permissions and
       limitations under the License.
-    
+
     </legalnotice>
 
     <title>SNMP Release Notes</title>
@@ -34,7 +34,40 @@
   </header>
 
 
-  <section><title>SNMP 5.2.6</title>
+  <section><title>SNMP 5.2.8</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    The <c>recbuf</c> configuration option was not propagated
+	    correctly to the socket for the SNMP Manager.</p>
+          <p>
+	    Own Id: OTP-13372 Aux Id: ERIERL-73 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>SNMP 5.2.7</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    A bug in the SNMP MIB compiler has been fixed. An
+	    AUGMENTS referring to a table defined later in the MIB
+	    did not work.</p>
+          <p>
+	    Own Id: OTP-13014 Aux Id: ERL-375 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>SNMP 5.2.6</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
       <list>
@@ -220,8 +253,8 @@
       <list type="bulleted">
         <item>
           <p>[compiler] Refinement of type Opaque was not allowed. </p>
-          <p>MIB constructs such as '<c>SYNTAX Opaque (SIZE(0..65535))</c>' 
-	  was previously not allowed, 
+          <p>MIB constructs such as '<c>SYNTAX Opaque (SIZE(0..65535))</c>'
+	  was previously not allowed,
 	  see the standard <c>ALARM-MIB</c> for eaxmple. </p>
           <p>Own Id: OTP-12066</p>
           <p>Aux Id: Seq 12669</p>
@@ -238,8 +271,8 @@
 <!--
       <list type="bulleted">
         <item>
-          <p>[agent] 
-	  see <seealso marker="snmpa#load_mibs">load_mibs</seealso> and 
+          <p>[agent]
+	  see <seealso marker="snmpa#load_mibs">load_mibs</seealso> and
 	  <seealso marker="snmpa#unload_mibs">unload_mibs</seealso>. </p>
           <p>Own Id: OTP-11216</p>
         </item>
@@ -370,18 +403,18 @@
 <!--
       <list type="bulleted">
         <item>
-          <p>Wrong block cypher type used for AES ('aes_cbf128' 
-	  instead of 'aes_cfb128') when performing AES block 
-	  encrypt/decrypt which breaks SNMP usmAesCfb128Protocol 
+          <p>Wrong block cypher type used for AES ('aes_cbf128'
+	  instead of 'aes_cfb128') when performing AES block
+	  encrypt/decrypt which breaks SNMP usmAesCfb128Protocol
 	  in agent and manager. </p>
           <p>Own Id: OTP-11412</p>
         </item>
 
         <item>
-          <p>[manager] When performing the AES encryption, invalid values for 
+          <p>[manager] When performing the AES encryption, invalid values for
 	  the EngineBoots and EngineTime was used. </p>
-	  <p>The values of the local agent was used, which would have produced 
-	  "some" values if an agent was actually running. 
+	  <p>The values of the local agent was used, which would have produced
+	  "some" values if an agent was actually running.
 	  If not it would have caused a crash. </p>
 	  <p>Own Id: OTP-11413</p>
         </item>
@@ -425,16 +458,16 @@
       <list type="bulleted">
         <item>
           <p>[agent] Enable SNMP to create missing database directories. </p>
-	  <p>Add 
+	  <p>Add
 	  <seealso marker="snmp_app#db_init_error">
-	  {db_init_error, create_db_and_dir}</seealso> option to SNMP 
-	  <seealso marker="snmp_app#manager_opts_and_types">manager</seealso> 
+	  {db_init_error, create_db_and_dir}</seealso> option to SNMP
+	  <seealso marker="snmp_app#manager_opts_and_types">manager</seealso>
 	  and
-	  <seealso marker="snmp_app#agent_opts_and_types">agent</seealso>. 
+	  <seealso marker="snmp_app#agent_opts_and_types">agent</seealso>.
 	  This allows them to create any missing parent directories for
-	  <c>db_dir</c>, rather than treating any missing directories 
+	  <c>db_dir</c>, rather than treating any missing directories
 	  as a fatal error.
-	  The default for <c>db_init_error</c>, which is <c>terminate</c>, 
+	  The default for <c>db_init_error</c>, which is <c>terminate</c>,
 	  is unchanged. </p>
 	  <p>Steve Vinoski</p>
           <p>Own Id: OTP-11352</p>
@@ -444,7 +477,7 @@
           <p>[manager] Improved handling of unexpected return values from
 	  <seealso marker="snmpm_user">snmpm_user</seealso>
 	  callback functions. </p>
-	  <p>Violations of the documented API (crashes or invalid return 
+	  <p>Violations of the documented API (crashes or invalid return
 	  values) will now result in an error message. </p>
           <p>Own Id: OTP-11307</p>
         </item>
@@ -452,16 +485,16 @@
         <item>
           <p>Add (atl) log conversion block option. </p>
 	  <p>It is now possible to request that the Audit Trail Log should
-	  be blocked during conversion (<c>log_to_txt</c> or <c>log_to_io</c>). 
-	  This could be usefull when coverting an entire large log (when 
+	  be blocked during conversion (<c>log_to_txt</c> or <c>log_to_io</c>).
+	  This could be usefull when coverting an entire large log (when
 	  there is a chance it may otherwise wrap during conversion). </p>
-	  <p>See 
-	  agent 
+	  <p>See
+	  agent
 	  <seealso marker="snmpa#log_to_txt">log_to_txt</seealso> and
-	  <seealso marker="snmpa#log_to_io">log_to_io</seealso> and also 
-	  manager 
+	  <seealso marker="snmpa#log_to_io">log_to_io</seealso> and also
+	  manager
 	  <seealso marker="snmpm#log_to_txt">log_to_txt</seealso> and
-	  <seealso marker="snmpm#log_to_io">log_to_io</seealso> 
+	  <seealso marker="snmpm#log_to_io">log_to_io</seealso>
 	  for details. </p>
           <p>Own Id: OTP-11396</p>
           <p>Own Id: seq12433</p>
@@ -470,9 +503,9 @@
         <item>
           <p>When converting an Audit Trail Log to text, a corrupt
 	  log entry could cause the entire conversion to fail. </p>
-	  <p>Also, for a log with sequence numbers, failing to 
+	  <p>Also, for a log with sequence numbers, failing to
 	  decode a log entry would cause the conversion to fail
-	  (not because of the failed decode, but because of the 
+	  (not because of the failed decode, but because of the
 	  failure to write the error message). </p>
           <p>Own Id: OTP-111453</p>
           <p>Aux Id: Seq 12459</p>
@@ -490,18 +523,18 @@
 
       <list type="bulleted">
         <item>
-          <p>Wrong block cypher type used for AES ('aes_cbf128' 
-	  instead of 'aes_cfb128') when performing AES block 
-	  encrypt/decrypt which breaks SNMP usmAesCfb128Protocol 
+          <p>Wrong block cypher type used for AES ('aes_cbf128'
+	  instead of 'aes_cfb128') when performing AES block
+	  encrypt/decrypt which breaks SNMP usmAesCfb128Protocol
 	  in agent and manager. </p>
           <p>Own Id: OTP-11412</p>
         </item>
 
         <item>
-          <p>[manager] When performing the AES encryption, invalid values for 
+          <p>[manager] When performing the AES encryption, invalid values for
 	  the EngineBoots and EngineTime was used. </p>
-	  <p>The values of the local agent was used, which would have produced 
-	  "some" values if an agent was actually running. 
+	  <p>The values of the local agent was used, which would have produced
+	  "some" values if an agent was actually running.
 	  If not it would have caused a crash. </p>
 	  <p>Own Id: OTP-11413</p>
         </item>
@@ -543,14 +576,14 @@
 
       <list type="bulleted">
         <item>
-          <p>[agent] Improved documentation for the functions for 
-	  loading and unloading mibs, 
-	  see <seealso marker="snmpa#load_mibs">load_mibs</seealso> and 
-	  <seealso marker="snmpa#unload_mibs">unload_mibs</seealso> for 
+          <p>[agent] Improved documentation for the functions for
+	  loading and unloading mibs,
+	  see <seealso marker="snmpa#load_mibs">load_mibs</seealso> and
+	  <seealso marker="snmpa#unload_mibs">unload_mibs</seealso> for
 	  more info. </p>
-          <p>Also added new functions for loading and unloading a single mib, 
-	  see <seealso marker="snmpa#load_mib">load_mib</seealso> and 
-	  <seealso marker="snmpa#unload_mib">unload_mib</seealso> for 
+          <p>Also added new functions for loading and unloading a single mib,
+	  see <seealso marker="snmpa#load_mib">load_mib</seealso> and
+	  <seealso marker="snmpa#unload_mib">unload_mib</seealso> for
 	  more info. </p>
           <p>Own Id: OTP-11216</p>
         </item>
@@ -566,8 +599,8 @@
 <!--
       <list type="bulleted">
         <item>
-          <p>[agent] 
-	  see <seealso marker="snmpa#load_mibs">load_mibs</seealso> and 
+          <p>[agent]
+	  see <seealso marker="snmpa#load_mibs">load_mibs</seealso> and
 	  <seealso marker="snmpa#unload_mibs">unload_mibs</seealso>. </p>
           <p>Own Id: OTP-11216</p>
         </item>
@@ -593,7 +626,7 @@
       </list>
 -->
     </section>
-    
+
   </section> <!-- 4.24.2 -->
 
 
@@ -626,29 +659,29 @@
 
       <list type="bulleted">
         <item>
-          <p>[agent] Reading the value of the vacmViewTreeFamilyMask returns 
+          <p>[agent] Reading the value of the vacmViewTreeFamilyMask returns
 	  it in the wrong (internal bitlist) format. </p>
 	  <p>The vacmViewTreeFamilyMask is defined as a bit string in the MIB
-	  (OCTET STRING). Internally a bitlist (list of 1's and 0's, 
+	  (OCTET STRING). Internally a bitlist (list of 1's and 0's,
 	  see <seealso marker="snmp_agent_config_files#vacm">vacm config file</seealso>
-	  for more info) is used. 
+	  for more info) is used.
 	  However, the MIB implementation assumed the latter, effectively
 	  rendering all attempts to read/set masks via SNMP unsuccessful. </p>
-	  <p>Since the mask is used in hot paths (e.g. access permission checks 
-	  for each SNMP operation, the bitlist representation of the mask has 
-	  benefits (e.g. faster processing). Reading/writing the view mask 
-	  objects is less time-critical. Therefore, to fix the issue, convert 
-	  between the bitlist (internal) representation and bitstring 
+	  <p>Since the mask is used in hot paths (e.g. access permission checks
+	  for each SNMP operation, the bitlist representation of the mask has
+	  benefits (e.g. faster processing). Reading/writing the view mask
+	  objects is less time-critical. Therefore, to fix the issue, convert
+	  between the bitlist (internal) representation and bitstring
 	  (external) when the vacmViewTreeFamilyMask objects are accessed. </p>
-	  <p>Also, the check of the vacm config file was invalid with 
-	  regard to the mask value. It was assumed to be a proper oid, which 
+	  <p>Also, the check of the vacm config file was invalid with
+	  regard to the mask value. It was assumed to be a proper oid, which
 	  is not strictly the case (see bitlist above). </p>
           <p>Own Id: OTP-11177</p>
 	  <p>Stefan Zegenhagen</p>
         </item>
 
         <item>
-          <p>[agent] The counter increment function in the local-db was  
+          <p>[agent] The counter increment function in the local-db was
 	  incorrect. It did not handle counter wrap correctly. </p>
           <p>Own Id: OTP-11192</p>
         </item>
@@ -695,26 +728,26 @@
         </item>
 
         <item>
-          <p>[agent] Introduced a documented behaviour for the mib-server 
-	  <seealso marker="snmpa_mib_data">mib-data backend</seealso>. 
+          <p>[agent] Introduced a documented behaviour for the mib-server
+	  <seealso marker="snmpa_mib_data">mib-data backend</seealso>.
 	  At present only the default module (<c>snmpa_mib_data_tttn</c>) is
 	  provided. </p>
-	  <p>A config option for the (agent) 
-	  <seealso marker="snmp_config#agent_mib_server">mib-servers</seealso> 
-	  mib-data backend module has been added to the agent config options, 
+	  <p>A config option for the (agent)
+	  <seealso marker="snmp_config#agent_mib_server">mib-servers</seealso>
+	  mib-data backend module has been added to the agent config options,
 	  <seealso marker="snmp_config#agent_ms_data_module">data_module</seealso>. </p>
 	  <p>Own Id: OTP-11101</p>
         </item>
 
         <item>
-          <p>[agent] Introduced a documented behaviour for the 
-	  <seealso marker="snmpa_mib_storage">mib storage</seealso>. 
-	  At present there are three simple modules 
-	  (<c>snmpa_mib_storage_ets</c>, <c>snmpa_mib_storage_dets</c> and 
+          <p>[agent] Introduced a documented behaviour for the
+	  <seealso marker="snmpa_mib_storage">mib storage</seealso>.
+	  At present there are three simple modules
+	  (<c>snmpa_mib_storage_ets</c>, <c>snmpa_mib_storage_dets</c> and
 	  <c>snmpa_mib_storage_mnesia</c>) implementing this behaviour,
 	  provided with the app. </p>
-	  <p>A config option for the (agent) 
-	  <seealso marker="snmp_config#agent_mib_storage">mib storage</seealso> 
+	  <p>A config option for the (agent)
+	  <seealso marker="snmp_config#agent_mib_storage">mib storage</seealso>
 	  has been added to the agent config options. </p>
 	  <p>Own Id: OTP-11107</p>
         </item>
@@ -772,14 +805,14 @@
       <list type="bulleted">
         <item>
           <p>[agent] Errors in <c>vacmAccessTable</c> RowStatus handling.
-	  There are problems with the handling of vacmAccessTableStatus 
+	  There are problems with the handling of vacmAccessTableStatus
 	  that cause some SNMP test suites to report errors.
-	  Most notably, erroneous set operations frequently cause "genErr" 
-	  errors to be returned. These "genErr" errors are usually caused 
-	  by badmatch exceptions coming from 
-	  <c>{ok, Row} = snmpa_vacm:get_row(RowIndex)</c> 
+	  Most notably, erroneous set operations frequently cause "genErr"
+	  errors to be returned. These "genErr" errors are usually caused
+	  by badmatch exceptions coming from
+	  <c>{ok, Row} = snmpa_vacm:get_row(RowIndex)</c>
 	  if the row does not exist. </p>
-	  <p>The semantics of the RowStatus handling in that table has 
+	  <p>The semantics of the RowStatus handling in that table has
 	  been adjusted to be compliant with the RowStatus
 	  textual description of SNPMv2-TC MIB. </p>
 	  <p>Stefan Zegenhagen</p>
@@ -803,7 +836,7 @@
         </item>
 
         <item>
-          <p>[compiler] The MIB compiler could not handle a table index 
+          <p>[compiler] The MIB compiler could not handle a table index
 	  that was defined later in the MIB. </p>
           <p>Own Id: OTP-10808</p>
         </item>
@@ -836,7 +869,7 @@
     <title>SNMP Development Toolkit 4.23</title>
 <!--
     <p>Version 4.23 supports code replacement in runtime from/to
-    version 4.22.1, 
+    version 4.22.1,
     4.22, 4.21.7 4.21.6 4.21.5, 4.21.4, 4.21.3, 4.21.2, 4.21.1 and 4.21. </p>
 -->
 
@@ -848,14 +881,14 @@
 
       <list type="bulleted">
         <item>
-          <p>[manager] Polish return values of snmpm_user_default according 
+          <p>[manager] Polish return values of snmpm_user_default according
 	  to snmpm_user doc.</p>
 	  <p>Luca Favatella</p>
 	  <p>Own Id: OTP-10671</p>
         </item>
 
         <item>
-          <p>[agent] Remove runtime warning in snmpa_agent because of 
+          <p>[agent] Remove runtime warning in snmpa_agent because of
 	  tuple fun usage. </p>
 	  <p>Luca Favatella</p>
 	  <p>Own Id: OTP-10672</p>
@@ -877,10 +910,10 @@
       <!--
       <list type="bulleted">
         <item>
-          <p>[agent] Simultaneous 
-          <seealso marker="snmpa#backup">snmpa:backup/1,2</seealso> 
+          <p>[agent] Simultaneous
+          <seealso marker="snmpa#backup">snmpa:backup/1,2</seealso>
           calls can interfere.
-          The master agent did not check if a backup was already in 
+          The master agent did not check if a backup was already in
           progress when a backup request was accepted. </p>
           <p>Own Id: OTP-9884</p>
           <p>Aux Id: Seq 11995</p>
@@ -913,7 +946,7 @@
   <section>
     <title>SNMP Development Toolkit 4.22.1</title>
     <p>Version 4.22.1 supports code replacement in runtime from/to
-    version 4.22, 4.21.7 4.21.6 4.21.5, 4.21.4, 4.21.3, 4.21.2, 4.21.1 and 
+    version 4.22, 4.21.7 4.21.6 4.21.5, 4.21.4, 4.21.3, 4.21.2, 4.21.1 and
     4.21. </p>
 
     <section>
@@ -925,15 +958,15 @@
       <list type="bulleted">
         <item>
           <p>[agent] Sematic fixes to SNMP-USER-BASED-SM-MIB.
-	  The semantics allow the <c>usmUserAuthKeyChange</c> and 
-	  <c>usmUserPrivKeyChange</c> objects to be written to in the 
-	  same set requests that also creates and clones the user. 
-	  This was not possible beforehand, causing test tools checking 
+	  The semantics allow the <c>usmUserAuthKeyChange</c> and
+	  <c>usmUserPrivKeyChange</c> objects to be written to in the
+	  same set requests that also creates and clones the user.
+	  This was not possible beforehand, causing test tools checking
 	  semantic SNMPv3 behaviour to fail on a lot of test cases. </p>
-	  <p>Furthermore, once the user has been cloned by writing to an 
-	  instance of <c>usmUserCloneFrom</c>, further set-operations to 
-	  the same object will not return an error, but be no-ops. 
-	  Especially, it must be avoided to copy security parameters 
+	  <p>Furthermore, once the user has been cloned by writing to an
+	  instance of <c>usmUserCloneFrom</c>, further set-operations to
+	  the same object will not return an error, but be no-ops.
+	  Especially, it must be avoided to copy security parameters
 	  again (possibly even from a different user). </p>
 	  <p>Stefan Zegenhagen</p>
 	  <p>Own Id: OTP-10166</p>
@@ -941,14 +974,14 @@
 
         <item>
           <p>[agent] Errors in <c>vacmAccessTable</c> RowStatus handling.
-	  There are problems with the handling of vacmAccessTableStatus 
+	  There are problems with the handling of vacmAccessTableStatus
 	  that cause some SNMP test suites to report errors.
-	  Most notably, erroneous set operations frequently cause "genErr" 
-	  errors to be returned. These "genErr" errors are usually caused 
-	  by badmatch exceptions coming from 
-	  <c>{ok, Row} = snmpa_vacm:get_row(RowIndex)</c> 
+	  Most notably, erroneous set operations frequently cause "genErr"
+	  errors to be returned. These "genErr" errors are usually caused
+	  by badmatch exceptions coming from
+	  <c>{ok, Row} = snmpa_vacm:get_row(RowIndex)</c>
 	  if the row does not exist. </p>
-	  <p>The semantics of the RowStatus handling in that table has 
+	  <p>The semantics of the RowStatus handling in that table has
 	  been adjusted to be compliant with the RowStatus
 	  textual description of SNPMv2-TC MIB. </p>
 	  <p>Stefan Zegenhagen</p>
@@ -967,24 +1000,24 @@
       <list type="bulleted">
         <item>
           <p>[agent] Fix walk over vacmAccessTable.
-	  Fix the get_next implementation of vacmAccessTable to 
+	  Fix the get_next implementation of vacmAccessTable to
 	  return all table entries. </p>
-	  <p>The get_next implementation of vacmAccessTable did not return 
-	  all available table data. Instead, it only returned the first 
+	  <p>The get_next implementation of vacmAccessTable did not return
+	  all available table data. Instead, it only returned the first
 	  column for each row, and all columns for the last row available. </p>
 	  <p>Stefan Zegenhagen</p>
           <p>Own Id: OTP-10165</p>
         </item>
 
         <item>
-          <p>[manager] 
-	  <seealso marker="snmpm#log_to_io">snmpm:log_to_io/6</seealso> 
+          <p>[manager]
+	  <seealso marker="snmpm#log_to_io">snmpm:log_to_io/6</seealso>
 	  did not use the LogName argument. </p>
           <p>Own Id: OTP-10066</p>
         </item>
 
         <item>
-          <p>Incorrect TimeTicks decode. Also bad handling of 
+          <p>Incorrect TimeTicks decode. Also bad handling of
 	  invalid encode (value outside of value range) for both
 	  <c>TimeTicks</c> and <c>Unsigned32</c>. </p>
           <p>Own Id: OTP-10132</p>
@@ -1015,38 +1048,38 @@
 
       <list type="bulleted">
         <item>
-          <p>[compiler] The table information the MIB compiler provides with 
-	  augmented tables has been extended with <c>nbr_of_cols</c>, 
+          <p>[compiler] The table information the MIB compiler provides with
+	  augmented tables has been extended with <c>nbr_of_cols</c>,
 	  <c>first_accessible</c> and <c>not_accessible</c>. </p>
           <p>Own Id: OTP-9969</p>
         </item>
 
         <item>
-          <p>Added the <c>log_to_io</c> audit-trail-log converter function 
-	  to the api modules of both the 
-	  <seealso marker="snmpm#log_to_io">manager</seealso> 
-	  and 
+          <p>Added the <c>log_to_io</c> audit-trail-log converter function
+	  to the api modules of both the
+	  <seealso marker="snmpm#log_to_io">manager</seealso>
+	  and
 	  <seealso marker="snmpa#log_to_io">agent</seealso>. </p>
           <p>Own Id: OTP-9940</p>
         </item>
 
         <item>
-          <p>[manager] Introduced a new transport module, 
-	  <c>snmpm_net_if_mt</c>, 
-	  which handles all incomming and outgoing 
+          <p>[manager] Introduced a new transport module,
+	  <c>snmpm_net_if_mt</c>,
+	  which handles all incomming and outgoing
 	  traffic in newly created processes. The message/request is
 	  processed and then the process exits. </p>
           <p>Own Id: OTP-9876</p>
 	</item>
 
         <item>
-          <p>[agent] Documenting previously existing but undocumented function, 
+          <p>[agent] Documenting previously existing but undocumented function,
 	  <seealso marker="snmp_generic#get_table_info">snmp_generic:get_table_info/2</seealso>. </p>
 	  <p>Own Id: OTP-9942</p>
         </item>
 
         <item>
-          <p>[agent] Improve error handling while reading agent config files. 
+          <p>[agent] Improve error handling while reading agent config files.
 	  Some files contain mandatory information and is therefor themself
 	  mandatory. </p>
 	  <p>Own Id: OTP-9943</p>
@@ -1062,10 +1095,10 @@
       <!--
       <list type="bulleted">
         <item>
-          <p>[agent] Simultaneous 
-          <seealso marker="snmpa#backup">snmpa:backup/1,2</seealso> 
+          <p>[agent] Simultaneous
+          <seealso marker="snmpa#backup">snmpa:backup/1,2</seealso>
           calls can interfere.
-          The master agent did not check if a backup was already in 
+          The master agent did not check if a backup was already in
           progress when a backup request was accepted. </p>
           <p>Own Id: OTP-9884</p>
           <p>Aux Id: Seq 11995</p>
@@ -1087,7 +1120,7 @@
   <section>
     <title>SNMP Development Toolkit 4.21.7</title>
     <p>Version 4.21.7 supports code replacement in runtime from/to
-    version 4.21.6, 4.21.5, 4.21.4, 4.21.3, 4.21.2, 4.21.1, 4.21, 4.20.1 and 
+    version 4.21.6, 4.21.5, 4.21.4, 4.21.3, 4.21.2, 4.21.1, 4.21, 4.20.1 and
     4.20. </p>
 
     <section>
@@ -1097,13 +1130,13 @@
       <!--
       <list type="bulleted">
         <item>
-          <p>[agent] DoS attack using GET-BULK with large value of 
+          <p>[agent] DoS attack using GET-BULK with large value of
           MaxRepetitions.
-          A preventive method has been implementing by simply 
-          limit the number of varbinds that can be included in 
-          a Get-BULK response message. This is specified by the 
-          new config option, 
-          <seealso marker="snmp_app#agent_gb_max_vbs">gb_max_vbs</seealso>. 
+          A preventive method has been implementing by simply
+          limit the number of varbinds that can be included in
+          a Get-BULK response message. This is specified by the
+          new config option,
+          <seealso marker="snmp_app#agent_gb_max_vbs">gb_max_vbs</seealso>.
           </p>
           <p>Own Id: OTP-9700</p>
         </item>
@@ -1121,10 +1154,10 @@
 
       <list type="bulleted">
         <item>
-          <p>[agent] Simultaneous 
-          <seealso marker="snmpa#backup">snmpa:backup/1,2</seealso> 
+          <p>[agent] Simultaneous
+          <seealso marker="snmpa#backup">snmpa:backup/1,2</seealso>
           calls can interfere.
-          The master agent did not check if a backup was already in 
+          The master agent did not check if a backup was already in
           progress when a backup request was accepted. </p>
           <p>Own Id: OTP-9884</p>
           <p>Aux Id: Seq 11995</p>
@@ -1145,7 +1178,7 @@
   <section>
     <title>SNMP Development Toolkit 4.21.6</title>
     <p>Version 4.21.6 supports code replacement in runtime from/to
-    version 4.21.5, 4.21.4, 4.21.3, 4.21.2, 4.21.1, 4.21, 4.20.1 and 
+    version 4.21.5, 4.21.4, 4.21.3, 4.21.2, 4.21.1, 4.21, 4.20.1 and
     4.20. </p>
 
     <section>
@@ -1156,13 +1189,13 @@
 
       <list type="bulleted">
         <item>
-          <p>[agent] DoS attack using GET-BULK with large value of 
+          <p>[agent] DoS attack using GET-BULK with large value of
           MaxRepetitions.
-          A preventive method has been implementing by simply 
-          limit the number of varbinds that can be included in 
-          a Get-BULK response message. This is specified by the 
-          new config option, 
-          <seealso marker="snmp_app#agent_gb_max_vbs">gb_max_vbs</seealso>. 
+          A preventive method has been implementing by simply
+          limit the number of varbinds that can be included in
+          a Get-BULK response message. This is specified by the
+          new config option,
+          <seealso marker="snmp_app#agent_gb_max_vbs">gb_max_vbs</seealso>.
           </p>
           <p>Own Id: OTP-9700</p>
         </item>
@@ -1179,11 +1212,11 @@
 
       <list type="bulleted">
         <item>
-          <p>[agent] Mib server cache gclimit update function incorrectly calls 
-          age update function. 
-          The gclimit update function, 
-          <seealso marker="snmpa#update_mibs_cache_gclimit">update_mibs_cache_gclimit/1</seealso>, 
-          <em>incorrectly</em> called the age update function, 
+          <p>[agent] Mib server cache gclimit update function incorrectly calls
+          age update function.
+          The gclimit update function,
+          <seealso marker="snmpa#update_mibs_cache_gclimit">update_mibs_cache_gclimit/1</seealso>,
+          <em>incorrectly</em> called the age update function,
           <seealso marker="snmpa#update_mibs_cache_age">update_mibs_cache_age/2</seealso>. </p>
           <p>Johan Claesson</p>
           <p>Own Id: OTP-9868</p>
@@ -1225,18 +1258,18 @@
     <section>
       <title>Fixed Bugs and Malfunctions</title>
 <!--
-      <p>-</p> 
+      <p>-</p>
 -->
 
       <list type="bulleted">
         <item>
-          <p>[agent] Repeated vacm table dumping fails due to file name 
-          conflict. When dumping the vacm table to disk, a temoporary 
-          file with a fixed name was used. If the table dumping 
-          (snmpa_vacm:dump_table/0) was initiated from several different 
-          processes in rapid succesion, the dumping could fail because the 
-          different processes was simultaniously trying to write to the 
-          same file. This problem has been eliminated by creating a unique 
+          <p>[agent] Repeated vacm table dumping fails due to file name
+          conflict. When dumping the vacm table to disk, a temoporary
+          file with a fixed name was used. If the table dumping
+          (snmpa_vacm:dump_table/0) was initiated from several different
+          processes in rapid succesion, the dumping could fail because the
+          different processes was simultaniously trying to write to the
+          same file. This problem has been eliminated by creating a unique
           name for the temporary file. </p>
           <p>Own Id: OTP-9851</p>
           <p>Aux Id: Seq 11980</p>
@@ -1277,7 +1310,7 @@
 <!--
       <list type="bulleted">
         <item>
-          <p>[compiler] Improved version info printout from the 
+          <p>[compiler] Improved version info printout from the
           <seealso marker="snmpc(command)#">MIB compiler frontend escript</seealso>. </p>
           <p>Own Id: OTP-9618</p>
         </item>
@@ -1290,7 +1323,7 @@
     <section>
       <title>Fixed Bugs and Malfunctions</title>
 <!--
-      <p>-</p> 
+      <p>-</p>
 -->
 
       <list type="bulleted">
@@ -1334,7 +1367,7 @@
 
       <list type="bulleted">
         <item>
-          <p>[compiler] Improved version info printout from the 
+          <p>[compiler] Improved version info printout from the
 	  <seealso marker="snmpc(command)#">MIB compiler frontend escript</seealso>. </p>
           <p>Own Id: OTP-9618</p>
         </item>
@@ -1346,27 +1379,27 @@
     <section>
       <title>Fixed Bugs and Malfunctions</title>
 <!--
-      <p>-</p> 
+      <p>-</p>
 -->
 
       <list type="bulleted">
         <item>
-          <p>[agent] Version 4.20 introduced a change that broke trap 
-	  sending from subagents. Due to a bug in the test code, 
+          <p>[agent] Version 4.20 introduced a change that broke trap
+	  sending from subagents. Due to a bug in the test code,
 	  this was not discovered, until that bug was fixed. </p>
           <p>Own Id: OTP-9745</p>
         </item>
 
         <item>
-          <p>[agent] When sending an error message (reply) regarding 
+          <p>[agent] When sending an error message (reply) regarding
 	  <c>snmpUnknownPDUHandlers</c>, the agent used the wrong OID. </p>
           <p>Own Id: OTP-9747</p>
         </item>
 
         <item>
-          <p>[compiler] Fix the <c>--warnings/--W</c> option parsing in the 
+          <p>[compiler] Fix the <c>--warnings/--W</c> option parsing in the
           <seealso marker="snmpc(command)#option_warnings">snmpc</seealso>
-          wrapper (e)script. 
+          wrapper (e)script.
           The short warning option was incorrectly <c>--w</c>, instead
           of as documented <c>--W</c>. This has now been corrected. </p>
           <p>*** POTENTIAL INCOMPATIBILITY ***</p>
@@ -1386,7 +1419,7 @@
 
       <list type="bulleted">
         <item>
-          <p>[compiler] The short warning option has been changed from 
+          <p>[compiler] The short warning option has been changed from
           <c>--w</c> to <c>--W</c> to comply with the documentation. </p>
           <p>Tuncer Ayaz</p>
           <p>Own Id: OTP-9718</p>
@@ -1410,7 +1443,7 @@
 <!--
       <list type="bulleted">
         <item>
-          <p>Bad note store GC timer deactivation. 
+          <p>Bad note store GC timer deactivation.
 	  Wrong field in the state record was set (timeout instead active). </p>
           <p>Stefan Grundmann</p>
           <p>Own Id: OTP-9690</p>
@@ -1424,12 +1457,12 @@
     <section>
       <title>Fixed Bugs and Malfunctions</title>
 <!--
-      <p>-</p> 
+      <p>-</p>
 -->
 
       <list type="bulleted">
         <item>
-          <p>Bad note store GC timer deactivation. 
+          <p>Bad note store GC timer deactivation.
 	  Wrong field in the state record was set (timeout instead active). </p>
           <p>Stefan Grundmann</p>
           <p>Own Id: OTP-9690</p>
@@ -1459,13 +1492,13 @@
 -->
       <list type="bulleted">
         <item>
-          <p>[compiler] Used wrong variable name (for 
-	  warnings-as-errors variable), which caused the 
+          <p>[compiler] Used wrong variable name (for
+	  warnings-as-errors variable), which caused the
 	  compiler to crash when using the snmpc (e)script. </p>
-	  <p>Also added the option 
+	  <p>Also added the option
 	  <seealso marker="snmpc(command)#option_werror">--Werror</seealso>
-	  for the SNMP MIB compiler (escript) frontend (to mimic 
-	  <seealso marker="erts:erlc">erlc</seealso>), 
+	  for the SNMP MIB compiler (escript) frontend (to mimic
+	  <seealso marker="erts:erlc">erlc</seealso>),
 	  which specifies whether warnings should be treated as errors. </p>
           <p>Own Id: OTP-9447</p>
         </item>
@@ -1480,12 +1513,12 @@
 
     <section>
       <title>Fixed Bugs and Malfunctions</title>
-      <p>-</p> 
+      <p>-</p>
 
 <!--
       <list type="bulleted">
         <item>
-          <p>The snmp config tool could not handle (manager) audit trail config 
+          <p>The snmp config tool could not handle (manager) audit trail config
 	  because the option seqno was not handled. </p>
 	  <p>Own Id: OTP-9354</p>
 	</item>
@@ -1515,15 +1548,15 @@
 -->
       <list type="bulleted">
         <item>
-          <p>[manager] There was no way to specify transport domain. 
+          <p>[manager] There was no way to specify transport domain.
 	  The transport domains was assumed to be IPv4 (transportDomainUdpIpv4).
-	  This has now been changed so that it can also be IPv6 
-	  (transportDomainUdpIpv6). 
-	  To facilitate this, the transport domain, <c>tdomain</c>, 
-	  is now a (new) valid option when 
+	  This has now been changed so that it can also be IPv6
+	  (transportDomainUdpIpv6).
+	  To facilitate this, the transport domain, <c>tdomain</c>,
+	  is now a (new) valid option when
 	  <seealso marker="snmpm#register_agent">registering</seealso>
-	  a new agent (and 
-	  <seealso marker="snmpm#update_agent_info">updating</seealso> 
+	  a new agent (and
+	  <seealso marker="snmpm#update_agent_info">updating</seealso>
 	  agent info). </p>
 	  <p>This also mean that the transport behaviour has changed. </p>
           <p>Own Id: OTP-9305</p>
@@ -1531,10 +1564,10 @@
         </item>
 
         <item>
-          <p>[compiler] Added the option 
-	  <seealso marker="snmpc#compile">warnings_as_errors</seealso> 
-	  (for the SNMP MIB compiler (escript) frontend, the option 
-	  <seealso marker="snmpc(command)#option_wae">--wae</seealso> is used) 
+          <p>[compiler] Added the option
+	  <seealso marker="snmpc#compile">warnings_as_errors</seealso>
+	  (for the SNMP MIB compiler (escript) frontend, the option
+	  <seealso marker="snmpc(command)#option_wae">--wae</seealso> is used)
 	  which specifies whether warnings should be treated as errors. </p>
           <p>Tuncer Ayaz</p>
           <p>Own Id: OTP-9437</p>
@@ -1546,12 +1579,12 @@
     <section>
       <title>Fixed Bugs and Malfunctions</title>
 <!--
-      <p>-</p> 
+      <p>-</p>
 -->
 
       <list type="bulleted">
         <item>
-          <p>The snmp config tool could not handle (manager) audit trail config 
+          <p>The snmp config tool could not handle (manager) audit trail config
 	  because the option seqno was not handled. </p>
 	  <p>Own Id: OTP-9354</p>
 	</item>
@@ -1605,11 +1638,11 @@
     <section>
       <title>Fixed Bugs and Malfunctions</title>
 <!--
-      <p>-</p> 
+      <p>-</p>
 -->
       <list type="bulleted">
         <item>
-          <p>[agent] Did not handle transport domains properly in some cases, 
+          <p>[agent] Did not handle transport domains properly in some cases,
 	  for instance trap sending. </p>
 	  <p>Own Id: OTP-9400</p>
 	</item>
@@ -1646,9 +1679,9 @@
       <list type="bulleted">
         <item>
           <p>[agent] Added support for sending traps to IPv6 targets. </p>
-	  <p>See the 
-	  <seealso marker="snmp_agent_config_files#target_addr">target address config file</seealso>, 
-	  the <seealso marker="snmpa_conf#target_addr_entry">target_addr_entry/11</seealso> function or 
+	  <p>See the
+	  <seealso marker="snmp_agent_config_files#target_addr">target address config file</seealso>,
+	  the <seealso marker="snmpa_conf#target_addr_entry">target_addr_entry/11</seealso> function or
 	  <seealso marker="snmp_target_mib#add_addr">add_addr/11</seealso> for more info. </p>
           <p>Own Id: OTP-9088</p>
           <p>Aux Id: Seq 11790</p>
@@ -1657,7 +1690,7 @@
 
         <item>
           <p>[agent] To be able to handle multiple engine-id(s) when
-	  sending trap(s), the function 
+	  sending trap(s), the function
           <seealso marker="snmp_community_mib#add_community">
 	  add_community/6</seealso> has been added. </p>
           <p>Own Id: OTP-9119</p>
@@ -1667,14 +1700,14 @@
         <item>
           <p>[manager] The API for snmp requests has been augmented to
 	  allow the caller to override some configuration. </p>
-	  <p>This has been done by introducing a new set of API functions, see 
-	  <seealso marker="snmpm#sync_get2">sync_get2/3,4</seealso>, 
-	  <seealso marker="snmpm#async_get2">async_get2/3,4</seealso>, 
-	  <seealso marker="snmpm#sync_get_next2">sync_get_next2/3,4</seealso>, 
-	  <seealso marker="snmpm#async_get_next2">async_get_next2/3,4</seealso>, 
-	  <seealso marker="snmpm#sync_get_bulk2">sync_get_bulk2/5,6</seealso>, 
-	  <seealso marker="snmpm#async_get_bulk2">async_get_bulk2/5,6</seealso>, 
-	  <seealso marker="snmpm#sync_set2">sync_set2/3,4</seealso> and 
+	  <p>This has been done by introducing a new set of API functions, see
+	  <seealso marker="snmpm#sync_get2">sync_get2/3,4</seealso>,
+	  <seealso marker="snmpm#async_get2">async_get2/3,4</seealso>,
+	  <seealso marker="snmpm#sync_get_next2">sync_get_next2/3,4</seealso>,
+	  <seealso marker="snmpm#async_get_next2">async_get_next2/3,4</seealso>,
+	  <seealso marker="snmpm#sync_get_bulk2">sync_get_bulk2/5,6</seealso>,
+	  <seealso marker="snmpm#async_get_bulk2">async_get_bulk2/5,6</seealso>,
+	  <seealso marker="snmpm#sync_set2">sync_set2/3,4</seealso> and
 	  <seealso marker="snmpm#async_set2">async_set2/3,4</seealso>
 	  for more info. </p>
           <p>Own Id: OTP-9162</p>
@@ -1682,8 +1715,8 @@
 
         <item>
           <p>[manager] The old API functions (for get and set
-	  requests: 
-	  snmpm:g/3,4,5,6,7, snmpm:ag/3,4,5,6,7, 
+	  requests:
+	  snmpm:g/3,4,5,6,7, snmpm:ag/3,4,5,6,7,
 	  snmpm:gn/3,4,5,6,7, snmpm:agn/3,4,5,6,7,
 	  snmpm:s/3,4,5,6,7, snmpm:s/3,4,5,6,7,
 	  snmpm:gb/5,6,7,8,9 and snmpm:agb/5,6,7,8,9)
@@ -1695,12 +1728,12 @@
         <item>
           <p>[agent] Pass extra info through the agent to the net-if
 	  process when sending notifications. </p>
-	  <p>See 
+	  <p>See
 	  <seealso marker="snmpa#send_notification2">
-	  snmpa:send_notification2/3</seealso> for more info. 
-	  See also the incomming net-if messages when sending a 
-	  <seealso marker="snmp_agent_netif#im_send_pdu">trap</seealso> 
-	  (send_pdu message) and 
+	  snmpa:send_notification2/3</seealso> for more info.
+	  See also the incomming net-if messages when sending a
+	  <seealso marker="snmp_agent_netif#im_send_pdu">trap</seealso>
+	  (send_pdu message) and
 	  <seealso marker="snmp_agent_netif#im_send_pdu_req">
 	  notification</seealso> (send_pdu_req message). </p>
           <p>Own Id: OTP-9183</p>
@@ -1718,15 +1751,15 @@
     <section>
       <title>Fixed Bugs and Malfunctions</title>
 <!--
-      <p>-</p> 
+      <p>-</p>
 -->
 
       <list type="bulleted">
         <item>
           <p>Fixed endode/decode of values of type <c>Counter32</c>. </p>
-	  <p>This type (<c>Counter32</c>) is an unsigned integer 32, 
-	  but is actually encoded as an signed integer 32. 
-	  The encode/decode functions however, treated it as if it was 
+	  <p>This type (<c>Counter32</c>) is an unsigned integer 32,
+	  but is actually encoded as an signed integer 32.
+	  The encode/decode functions however, treated it as if it was
 	  encodeded as an unsigned integer 32. </p>
 	  <p>Own Id: OTP-9022</p>
 	</item>
@@ -1741,12 +1774,4 @@
     </section>
 
   </section> <!-- 4.20 -->
-
-
-  <!-- section>
-    <title>Release notes history</title>
-    <p>For information about older versions see
-      <url href="part_notes_history_frame.html">release notes history</url>.</p>
-  </section -->
 </chapter>
-
diff --git a/lib/snmp/doc/src/part_notes.xml b/lib/snmp/doc/src/part_notes.xml
deleted file mode 100644
index d149044169..0000000000
--- a/lib/snmp/doc/src/part_notes.xml
+++ /dev/null
@@ -1,41 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>1997</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>SNMP Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-    <file>part_notes.xml</file>
-  </header>
-  <description>
-    <p>A multilingual Simple Network Management Protocol application,
-      featuring an Extensible Agent, a simple manager and a MIB 
-      compiler and facilities for implementing SNMP MIBs etc.</p>
-    <p>For information about older versions see
-      <url href="part_notes_history_frame.html">release notes history</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/snmp/doc/src/part_notes_history.xml b/lib/snmp/doc/src/part_notes_history.xml
deleted file mode 100644
index aa5276dc94..0000000000
--- a/lib/snmp/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,42 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>SNMP Release Notes History</title>
-    <prepared></prepared>
-    <responsible></responsible>
-    <docno></docno>
-    <approved></approved>
-    <checked></checked>
-    <date></date>
-    <rev></rev>
-    <file>part_notes_history.xml</file>
-  </header>
-  <description>
-    <p>A multilingual Simple Network Management Protocol application,
-      featuring an Extensible Agent, a simple manager and a MIB 
-      compiler and facilities for implementing SNMP MIBs etc.</p>
-  </description>
-  <include file="notes_history"></include>
-</part>
-
diff --git a/lib/snmp/doc/src/ref_man.gif b/lib/snmp/doc/src/ref_man.gif
deleted file mode 100644
index b13c4efd53..0000000000
--- a/lib/snmp/doc/src/ref_man.gif
+++ /dev/null
diff --git a/lib/snmp/doc/src/snmp.gif b/lib/snmp/doc/src/snmp.gif
deleted file mode 100644
index d9985f990b..0000000000
--- a/lib/snmp/doc/src/snmp.gif
+++ /dev/null
diff --git a/lib/snmp/doc/src/summary.html.src b/lib/snmp/doc/src/summary.html.src
deleted file mode 100644
index 9bad4adbeb..0000000000
--- a/lib/snmp/doc/src/summary.html.src
+++ /dev/null
@@ -1 +0,0 @@
-Simple Network Management Protocol (SNMP) support including a MIB compiler, a simple SNMP manager and tools for creating SNMP agents
diff --git a/lib/snmp/doc/src/user_guide.gif b/lib/snmp/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/snmp/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/snmp/doc/src/warning.gif b/lib/snmp/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/snmp/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/snmp/src/app/snmp.appup.src b/lib/snmp/src/app/snmp.appup.src
index db09ec3dc5..ca61782639 100644
--- a/lib/snmp/src/app/snmp.appup.src
+++ b/lib/snmp/src/app/snmp.appup.src
@@ -8,10 +8,6 @@
 %% {update, snmpa_local_db, soft, soft_purge, soft_purge, []}
 %% {add_module,  snmpm_net_if_mt}
  [
-  {<<"5\\.2\\.4">>,
-   [{load_module, snmp, soft_purge, soft_purge, []},
-    {load_module, snmpc_lib, soft_purge, soft_purge, []},
-    {load_module, snmpc_mib_gram, soft_purge, soft_purge, []}]},
   {<<"5\\..*">>, [{restart_application, snmp}]},	
   {<<"4\\..*">>, [{restart_application, snmp}]}
  ],
@@ -21,10 +17,6 @@
 %% {remove, {snmpm_net_if_mt, soft_purge, soft_purge}}
  
  [
-  {<<"5\\.2\\.4">>,
-   [{load_module, snmp, soft_purge, soft_purge, []},
-    {load_module, snmpc_lib, soft_purge, soft_purge, []},
-    {load_module, snmpc_mib_gram, soft_purge, soft_purge, []}]},
   {<<"5\\..*">>, [{restart_application, snmp}]},	
   {<<"4\\..*">>, [{restart_application, snmp}]}
  ]  	       
diff --git a/lib/snmp/src/compile/snmpc.erl b/lib/snmp/src/compile/snmpc.erl
index 416353508e..4416626a4c 100644
--- a/lib/snmp/src/compile/snmpc.erl
+++ b/lib/snmp/src/compile/snmpc.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1997-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -455,7 +455,8 @@ compile_parsed_data(#pdata{mib_name = MibName,
     Deprecated = get_deprecated(Opts),
     RelChk = get_relaxed_row_name_assign_check(Opts),
     Data = #dldata{deprecated                    = Deprecated,
-		   relaxed_row_name_assign_check = RelChk}, 
+		   relaxed_row_name_assign_check = RelChk},
+    put(augmentations, false),
     definitions_loop(Definitions, Data),
     MibName.
 
@@ -1211,7 +1212,39 @@ definitions_loop([{Obj,Line}|T], Data) ->
 
 definitions_loop([], _Data) ->
     ?vlog("defloop -> done", []),
-    ok.
+    case get(augmentations) of
+        true ->
+            CData = get(cdata),
+            put(cdata, CData#cdata{mes = augmentations(CData#cdata.mes)}),
+            ok;
+        false ->
+            ok
+    end.
+
+augmentations(
+  [#me{
+      aliasname = AliasName,
+      assocList =
+          [{table_info,
+            #table_info{
+               index_types =
+                   {augments, SrcTableEntry, Line}} = TableInfo}|Ref]} = Me
+   |Mes]) ->
+    ?vlog("augmentations(~w) ->"
+          "~n   NameOfTable:  ~p"
+          "~n   IndexingInfo: ~p"
+          "~n   Sline:        ~p",
+          [?LINE, AliasName, {augments, SrcTableEntry}, Line]),
+    NewTableInfo = snmpc_lib:fix_table_info_augmentation(TableInfo),
+    [Me#me{assocList = [{table_info,NewTableInfo}|Ref]}
+     |augmentations(Mes)];
+augmentations([Me | Mes]) ->
+     [Me|augmentations(Mes)];
+augmentations([]) ->
+    ?vlog("augmentations -> done", []),
+    [].
+
+
 
 safe_elem(N,T) ->
     case catch(element(N,T)) of
diff --git a/lib/snmp/src/compile/snmpc_lib.erl b/lib/snmp/src/compile/snmpc_lib.erl
index 33ddd78308..19a6bc8851 100644
--- a/lib/snmp/src/compile/snmpc_lib.erl
+++ b/lib/snmp/src/compile/snmpc_lib.erl
@@ -26,7 +26,7 @@
 -export([test_father/4, make_ASN1type/1, import/1, makeInternalNode2/2,
 	 is_consistent/1, resolve_defval/1, make_variable_info/1,
 	 check_trap_name/3, make_table_info/5, get_final_mib/2, set_dir/2,
-	 look_at/1, add_cdata/2,
+         fix_table_info_augmentation/1, look_at/1, add_cdata/2,
 	 check_object_group/4, check_notification_group/4, 
 	 check_notification/3, 
 	 register_oid/4,
@@ -710,25 +710,34 @@ check_trap_name(EnterpriseName, Line, MEs) ->
 %% functions for tables.
 %%----------------------------------------------------------------------
 
+fix_table_info_augmentation(
+  #table_info{index_types = {augments, SrcTableEntry, Line}} = TableInfo) ->
+    MEs = (get(cdata))#cdata.mes,
+    Aug =
+        case lookup(SrcTableEntry, MEs) of
+            false ->
+                print_error(
+                  "Cannot AUGMENT the non-existing table entry ~p",
+                  [SrcTableEntry], Line),
+                {augments, error};
+            {value, ME} ->
+                {augments,
+                 {SrcTableEntry, translate_type(ME#me.asn1_type)}}
+        end,
+    TableInfo#table_info{index_types = Aug}.
+
+
 make_table_info(Line, TableName, {augments, SrcTableEntry}, _, ColumnMEs) ->
     ColMEs = lists:keysort(#me.oid, ColumnMEs),
-    Nbr_of_Cols = length(ColMEs), 
-    MEs = ColMEs ++ (get(cdata))#cdata.mes,
-    Aug = case lookup(SrcTableEntry, MEs) of
-	      false ->
-		  print_error("Cannot AUGMENT the non-existing table entry ~p",
-			      [SrcTableEntry], Line),
-		  {augments, error};
-	      {value, ME} ->
-		  {augments, {SrcTableEntry, translate_type(ME#me.asn1_type)}}
-	  end,
-    FirstNonIdxCol = augments_first_non_index_column(ColMEs), 
+    Nbr_of_Cols = length(ColMEs),
+    put(augmentations, true),
+    FirstNonIdxCol = augments_first_non_index_column(ColMEs),
     NoAccs         = list_not_accessible(FirstNonIdxCol, ColMEs),
     FirstAcc       = first_accessible(TableName, ColMEs),
     #table_info{nbr_of_cols      = Nbr_of_Cols,
-		first_accessible = FirstAcc, 
-		not_accessible   = NoAccs, 
-		index_types      = Aug}; 
+		first_accessible = FirstAcc,
+		not_accessible   = NoAccs,
+		index_types      = {augments, SrcTableEntry, Line}};
 make_table_info(Line, TableName, {indexes, []}, _, _ColumnMEs) ->
     print_error("Table ~w lacks indexes.", [TableName],Line),
     #table_info{};
diff --git a/lib/snmp/src/manager/snmpm_net_if.erl b/lib/snmp/src/manager/snmpm_net_if.erl
index 93c987eb0f..29216f9d6a 100644
--- a/lib/snmp/src/manager/snmpm_net_if.erl
+++ b/lib/snmp/src/manager/snmpm_net_if.erl
@@ -1,7 +1,7 @@
 %% 
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2004-2015. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -367,7 +367,7 @@ common_socket_opts(Opts) ->
 	     default ->
 		 [];
 	     Sz ->
-		 [{sndbuf, Sz}]
+		 [{recbuf, Sz}]
 	 end ++
 	 case get_opt(Opts, no_reuse, false) of
 	     false ->
diff --git a/lib/snmp/test/snmp_compiler_test.erl b/lib/snmp/test/snmp_compiler_test.erl
index 9b3c2bfd2c..2b6bba4ee6 100644
--- a/lib/snmp/test/snmp_compiler_test.erl
+++ b/lib/snmp/test/snmp_compiler_test.erl
@@ -57,8 +57,8 @@
 	 otp_8595/1, 
 	 otp_10799/1, 
 	 otp_10808/1,
-	 otp_14145/1
-
+	 otp_14145/1,
+         otp_13014/1
 	]).
 
 %%----------------------------------------------------------------------
@@ -137,7 +137,8 @@ all() ->
 
 groups() -> 
     [{tickets, [],
-      [otp_6150, otp_8574, otp_8595, otp_10799, otp_10808, otp_14145]}].
+      [otp_6150, otp_8574, otp_8595, otp_10799, otp_10808, otp_14145,
+       otp_13014]}].
 
 init_per_group(_GroupName, Config) ->
     Config.
@@ -436,7 +437,7 @@ otp_10808(Config) when is_list(Config) ->
 otp_14145(suite) ->
     [];
 otp_14145(Config) when is_list(Config) ->
-    put(tname, otp10808),
+    put(tname, otp14145),
     p("starting with Config: ~p~n", [Config]),
 
     Dir     = ?config(case_top_dir, Config),
@@ -457,6 +458,40 @@ otp_14145(Config) when is_list(Config) ->
 
 %%======================================================================
 
+otp_13014(suite) ->
+    [];
+otp_13014(Config) when is_list(Config) ->
+    put(tname, otp13014),
+    p("starting with Config: ~p~n", [Config]),
+
+    Dir     = ?config(case_top_dir, Config),
+    MibDir  = ?config(mib_dir,      Config),
+    MibName = "Test-LLDP-MIB",
+    MibFile = join(MibDir, MibName++".mib"),
+    ?line {ok, MibBin} =
+	snmpc:compile(MibFile, [{outdir, Dir},
+				{verbosity, log},
+				{group_check, false},
+				module_compliance]),
+    p("Mib: ~n~p~n", [MibBin]),
+    #mib{mes = MEs} = read_mib(MibBin),
+    Oid = [1,0,8802,1,1,2,1,1,7],
+    #me{
+       entrytype = table,
+       aliasname = lldpConfigManAddrTable,
+       assocList = [{table_info,TableInfo}]} =
+        lists:keyfind(Oid, #me.oid, MEs),
+    #table_info{
+       nbr_of_cols = 1,
+       first_accessible = 1,
+       not_accessible = [],
+       index_types = {augments,{lldpLocManAddrEntry,undefined}}} =
+        TableInfo,
+    ok.
+
+
+%%======================================================================
+
 augments_extra_info(suite) ->
     [];
 augments_extra_info(Config) when is_list(Config) ->
diff --git a/lib/snmp/test/snmp_test_data/Test-LLDP-MIB.mib b/lib/snmp/test/snmp_test_data/Test-LLDP-MIB.mib
new file mode 100644
index 0000000000..40a9fc79e1
--- /dev/null
+++ b/lib/snmp/test/snmp_test_data/Test-LLDP-MIB.mib
@@ -0,0 +1,251 @@
+Test-LLDP-MIB DEFINITIONS ::= BEGIN
+
+IMPORTS
+    MODULE-IDENTITY, OBJECT-TYPE, Integer32, Counter32, NOTIFICATION-TYPE
+        FROM SNMPv2-SMI
+    TEXTUAL-CONVENTION, TimeStamp, TruthValue
+        FROM SNMPv2-TC
+    SnmpAdminString
+        FROM SNMP-FRAMEWORK-MIB
+    MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
+        FROM SNMPv2-CONF;
+
+t-lldpMIB MODULE-IDENTITY
+    LAST-UPDATED "200505060000Z" -- May 06, 2005
+    ORGANIZATION "IEEE 802.1 Working Group"
+    CONTACT-INFO
+            " Contact: The Erlang/OTP team at Ericsson AB, Sweden
+
+               WG-URL: http://grouper.ieee.org/groups/802/1/index.html
+             WG-EMail: [email protected]
+
+              Contact: Paul Congdon
+               Postal: Hewlett-Packard Company
+                       8000 Foothills Blvd.
+                       Roseville, CA 95747
+                       USA
+                  Tel: +1-916-785-5753
+               E-mail: [email protected]"
+    DESCRIPTION
+            "This is the ripped out bits and pieces of LLDP-MIB
+            that triggered a compilation problem for Erlang/OTP's
+            MIB compiler due to an AUGMENTS in lldpConfigManAddrEntry
+            refering to a not yet defined OBJECT-TYPE lldpLocManAddrEntry.
+	    Rip and rewrite done 2017.
+
+             Management Information Base module for LLDP configuration,
+            statistics, local system data and remote systems data
+            components.
+
+            Copyright (C) IEEE (2005).  This version of this MIB module
+            is published as subclause 12.1 of IEEE Std 802.1AB-2005;
+            see the standard itself for full legal notices."
+    REVISION        "200505060000Z" -- May 06, 2005
+    DESCRIPTION
+            "Published as part of IEEE Std 802.1AB-2005 initial version."
+   ::= { iso std(0) iso8802(8802) ieee802dot1(1) ieee802dot1mibs(1) 2 }
+
+--lldpNotifications            OBJECT IDENTIFIER ::= { lldpMIB 0 }
+lldpObjects                  OBJECT IDENTIFIER ::= { t-lldpMIB 1 }
+lldpConformance              OBJECT IDENTIFIER ::= { t-lldpMIB 2 }
+
+--
+-- LLDP MIB Objects
+--
+
+lldpConfiguration            OBJECT IDENTIFIER ::= { lldpObjects 1 }
+--lldpStatistics               OBJECT IDENTIFIER ::= { lldpObjects 2 }
+lldpLocalSystemData          OBJECT IDENTIFIER ::= { lldpObjects 3 }
+--lldpRemoteSystemsData        OBJECT IDENTIFIER ::= { lldpObjects 4 }
+--lldpExtensions               OBJECT IDENTIFIER ::= { lldpObjects 5 }
+
+
+
+LldpPortList ::= TEXTUAL-CONVENTION
+    STATUS      current
+    DESCRIPTION
+            "Each octet within this value specifies a set of eight ports,
+            with the first octet specifying ports 1 through 8, the second
+            octet specifying ports 9 through 16, etc.  Within each octet,
+            the most significant bit represents the lowest numbered port,
+            and the least significant bit represents the highest numbered
+            port.  Thus, each port of the system is represented by a
+            single bit within the value of this object.  If that bit has
+            a value of '1' then that port is included in the set of ports;
+            the port is not included if its bit has a value of '0'."
+    REFERENCE
+            "IETF RFC 2674 section 5"
+    SYNTAX  OCTET STRING(SIZE(0..512))
+
+
+
+--
+-- lldpManAddrConfigTxPortsTable : selection of management addresses
+--                                 to be transmitted on a specified set
+--                                 of ports.
+--
+
+lldpConfigManAddrTable OBJECT-TYPE
+    SYNTAX      SEQUENCE OF LldpConfigManAddrEntry
+    MAX-ACCESS  not-accessible
+    STATUS      current
+    DESCRIPTION
+            "The table that controls selection of LLDP management address
+            TLV instances to be transmitted on individual ports."
+    ::= { lldpConfiguration 7 }
+
+lldpConfigManAddrEntry  OBJECT-TYPE
+    SYNTAX      LldpConfigManAddrEntry
+    MAX-ACCESS  not-accessible
+    STATUS      current
+    DESCRIPTION
+            "LLDP configuration information that specifies the set
+            of ports (represented as a PortList) on which the local
+            system management address instance will be transmitted.
+
+            This configuration object augments the lldpLocManAddrEntry,
+            therefore it is only present along with the management
+            address instance contained in the associated
+            lldpLocManAddrEntry entry.
+
+            Each active lldpConfigManAddrEntry must be restored from
+            non-volatile and re-created (along with the corresponding
+            lldpLocManAddrEntry) after a re-initialization of the
+            management system."
+    AUGMENTS { lldpLocManAddrEntry }
+    ::= { lldpConfigManAddrTable 1 }
+
+LldpConfigManAddrEntry  ::= SEQUENCE {
+    lldpConfigManAddrPortsTxEnable LldpPortList
+}
+
+lldpConfigManAddrPortsTxEnable  OBJECT-TYPE
+    SYNTAX        LldpPortList
+    MAX-ACCESS    read-write
+    STATUS        current
+    DESCRIPTION
+            "A set of ports that are identified by a PortList, in which
+            each port is represented as a bit.  The corresponding local
+            system management address instance will be transmitted on the
+            member ports of the lldpManAddrPortsTxEnable.
+
+            The default value for lldpConfigManAddrPortsTxEnable object
+            is empty binary string, which means no ports are specified
+            for advertising indicated management address instance."
+    REFERENCE
+            "IEEE 802.1AB-2005 10.2.1.1"
+    DEFVAL  { ''H }     -- empty binary string
+    ::= { lldpConfigManAddrEntry 1 }
+
+
+--
+-- lldpLocManAddrTable : Management addresses of the local system
+--
+
+lldpLocManAddrTable OBJECT-TYPE
+    SYNTAX      SEQUENCE OF LldpLocManAddrEntry
+    MAX-ACCESS  not-accessible
+    STATUS      current
+    DESCRIPTION
+            "This table contains management address information on the
+            local system known to this agent."
+    ::= { lldpLocalSystemData 8 }
+
+lldpLocManAddrEntry OBJECT-TYPE
+    SYNTAX      LldpLocManAddrEntry
+    MAX-ACCESS  not-accessible
+    STATUS      current
+    DESCRIPTION
+            "Management address information about a particular chassis
+            component.  There may be multiple management addresses
+            configured on the system identified by a particular
+            lldpLocChassisId.  Each management address should have
+            distinct 'management address type' (lldpLocManAddrSubtype) and
+            'management address' (lldpLocManAddr.)
+
+            Entries may be created and deleted in this table by the
+            agent."
+    INDEX   { lldpLocManAddrIfId,
+              lldpLocManAddrLen }
+    ::= { lldpLocManAddrTable 1 }
+
+LldpLocManAddrEntry ::= SEQUENCE {
+      lldpLocManAddrIfId       Integer32,
+      lldpLocManAddrLen        Integer32,
+      lldpLocManAddrOID        OBJECT IDENTIFIER
+}
+
+lldpLocManAddrIfId  OBJECT-TYPE
+    SYNTAX      Integer32
+    MAX-ACCESS  read-only
+    STATUS      current
+    DESCRIPTION
+            "The integer value used to identify the interface number
+            regarding the management address component associated with
+            the local system."
+    REFERENCE
+            "IEEE 802.1AB-2005 9.5.9.6"
+    ::= { lldpLocManAddrEntry 1 }
+
+lldpLocManAddrLen  OBJECT-TYPE
+    SYNTAX      Integer32
+    MAX-ACCESS  read-only
+    STATUS      current
+    DESCRIPTION
+            "The total length of the management address subtype and the
+            management address fields in LLDPDUs transmitted by the
+            local LLDP agent.
+
+            The management address length field is needed so that the
+            receiving systems that do not implement SNMP will not be
+            required to implement an iana family numbers/address length
+            equivalency table in order to decode the management adress."
+    REFERENCE
+            "IEEE 802.1AB-2005 9.5.9.2"
+    ::= { lldpLocManAddrEntry 2 }
+
+lldpLocManAddrOID  OBJECT-TYPE
+    SYNTAX      OBJECT IDENTIFIER
+    MAX-ACCESS  read-only
+    STATUS      current
+    DESCRIPTION
+            "The OID value used to identify the type of hardware component
+            or protocol entity associated with the management address
+            advertised by the local system agent."
+    REFERENCE
+            "IEEE 802.1AB-2005 9.5.9.8"
+    ::= { lldpLocManAddrEntry 3 }
+
+
+lldpGroups      OBJECT IDENTIFIER ::= { lldpConformance 1 }
+
+lldpLocSysGroup  OBJECT-GROUP
+    OBJECTS {
+        lldpLocManAddrIfId,
+        lldpLocManAddrLen,
+        lldpLocManAddrOID
+    }
+    STATUS  current
+    DESCRIPTION
+            "The collection of objects which are used to represent LLDP
+            Local System Information.
+
+            This group is mandatory for agents which implement the LLDP
+            and have the capability of transmitting LLDP frames."
+    ::= { lldpGroups 6 }
+
+lldpConfigTxGroup    OBJECT-GROUP
+    OBJECTS {
+        lldpConfigManAddrPortsTxEnable
+    }
+    STATUS  current
+    DESCRIPTION
+            "The collection of objects which are used to configure the
+            LLDP implementation behavior.
+
+            This group is mandatory for agents which implement the LLDP
+            and have the capability of transmitting LLDP frames."
+    ::= { lldpGroups 3 }
+
+
+END
diff --git a/lib/snmp/vsn.mk b/lib/snmp/vsn.mk
index d41b1999cc..ef48608bda 100644
--- a/lib/snmp/vsn.mk
+++ b/lib/snmp/vsn.mk
@@ -19,6 +19,6 @@
 # %CopyrightEnd%
 
 APPLICATION = snmp
-SNMP_VSN    = 5.2.6
+SNMP_VSN    = 5.2.8
 PRE_VSN     =
 APP_VSN     = "$(APPLICATION)-$(SNMP_VSN)$(PRE_VSN)"
diff --git a/lib/ssh/doc/src/Makefile b/lib/ssh/doc/src/Makefile
index a759854da4..e066b787f3 100644
--- a/lib/ssh/doc/src/Makefile
+++ b/lib/ssh/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2004-2016. All Rights Reserved.
+# Copyright Ericsson AB 2004-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -48,17 +48,18 @@ XML_REF3_FILES = ssh.xml \
 
 XML_REF6_FILES = ssh_app.xml
 
-XML_PART_FILES = part_notes.xml \
+XML_PART_FILES = \
 		 usersguide.xml
 XML_CHAPTER_FILES = notes.xml \
 	introduction.xml \
 	ssh_protocol.xml \
-	using_ssh.xml
+	using_ssh.xml \
+	configure_algos.xml
 
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES)  $(XML_REF6_FILES)\
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
 IMAGE_FILES = SSH_protocols.png
 
@@ -84,10 +85,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -115,12 +116,12 @@ clean clean_docs:
 man: $(MAN3_FILES) $(MAN6_FILES)
 
 
-debug opt: 
+debug opt:
 
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/ssh/doc/src/configure_algos.xml b/lib/ssh/doc/src/configure_algos.xml
new file mode 100644
index 0000000000..dd60324851
--- /dev/null
+++ b/lib/ssh/doc/src/configure_algos.xml
@@ -0,0 +1,428 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE chapter SYSTEM "chapter.dtd">
+
+<chapter>
+  <header>
+    <copyright>
+      <year>2017</year>
+      <year>2017</year>
+      <holder>Ericsson AB. All Rights Reserved.</holder>
+    </copyright>
+    <legalnotice>
+      Licensed under the Apache License, Version 2.0 (the "License");
+      you may not use this file except in compliance with the License.
+      You may obtain a copy of the License at
+ 
+          http://www.apache.org/licenses/LICENSE-2.0
+
+      Unless required by applicable law or agreed to in writing, software
+      distributed under the License is distributed on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+      See the License for the specific language governing permissions and
+      limitations under the License.
+
+    </legalnotice>
+
+    <title>Configuring algorithms in SSH</title>
+    <prepared></prepared>
+    <docno></docno>
+    <approved></approved>
+    <date></date>
+    <rev></rev>
+    <file>configure_algos.xml</file>
+  </header>
+
+  <section>
+    <marker id="introduction"/>
+    <title>Introduction</title>
+    <p>To fully understand how to configure the algorithms, it is essential to have a basic understanding of the SSH protocol
+    and how OTP SSH app handles the corresponding items</p>
+
+    <p>The first subsection will give a short background of the SSH protocol while later sections describes
+    the implementation and provides some examples</p>
+
+    <section>
+      <title>Basics of the ssh protocol's algorithms handling</title>
+
+      <p>SSH uses different sets of algorithms in different phases of a session. Which
+      algorithms to use is negotiated by the client and the server at the beginning of a session.
+      See <url href="https://tools.ietf.org/html/rfc4253">RFC 4253</url>,
+      "The Secure Shell (SSH) Transport Layer Protocol" for details.
+      </p>
+
+      <p>The negotiation is simple: both peers sends their list of supported alghorithms to the other part.
+      The first algorithm on the client's list that also in on the server's list is selected. So it is the
+      client's orderering of the list that gives the priority for the algorithms.</p>
+
+      <p>There are five lists exchanged in the connection setup. Three of them are also divided in two
+      directions, to and from the server.</p>
+
+      <p>The lists are (named as in the SSH application's options):</p>
+      <taglist>
+	<tag><c>kex</c></tag>
+	<item>
+	  <p>Key exchange.</p>
+	  <p>An algorithm is selected for computing a secret encryption key. Among examples are:
+	  the old nowadays week <c>'diffie-hellman-group-exchange-sha1'</c> and the very strong and modern
+	  <c>'ecdh-sha2-nistp512'</c>.</p>
+	</item>
+
+	<tag><c>public_key</c></tag>
+	<item>
+	  <p>Server host key</p>
+	  <p>The asymetric encryption algorithm used in the server's private-public host key pair.
+	  Examples include the well-known RSA <c>'ssh-rsa'</c> and elliptic curve <c>'ecdsa-sha2-nistp521'</c>.
+	  </p>
+	</item>
+
+	<tag><c>cipher</c></tag>
+	<item>
+	  <p>Symetric cipher algorithm used for the payload encryption. This algorithm will use the key calculated
+	  in the kex phase (together with other info) to genereate the actual key used. Examples are 
+	  tripple-DES <c>'3des-cbc'</c> and one of many AES variants <c>'aes192-ctr'</c>.
+	  </p>
+	  <p>This list is actually two - one for each direction server-to-client and client-to-server. Therefore it
+	  is possible but rare to have different algorithms in the two directions in one connection.</p>
+	</item>
+
+	<tag><c>mac</c></tag>
+	<item>
+	  <p>Message authentication code</p>
+	  <p>"Check sum" of each message sent between the peers. Examples are SHA <c>'hmac-sha1'</c> and
+	  SHA2 <c>'hmac-sha2-512'</c>.</p>
+	  <p>This list is also divided into two for the both directions</p>
+	</item>
+
+	<tag><c>compression</c></tag>
+	<item>
+	  <p>If and how to compress the message. Examples are <c>none</c>, that is, no compression and
+	  <c>zlib</c>.</p>
+	  <p>This list is also divided into two for the both directions</p>
+	</item>
+	
+      </taglist>
+    </section>
+
+    <section>
+      <title>The SSH app's mechanism</title>
+      <p>The set of algorithms that the SSH app uses by default depends on the algoritms supported by the:</p>
+      <list>
+	<item><p><seealso marker="crypto:crypto">crypto</seealso> app,</p>
+	</item>
+	<item><p>The cryptolib OTP is linked with, usally the one the OS uses, probably OpenSSL,</p>
+	</item>
+	<item><p>and finaly what the SSH app implements</p>
+	</item>
+      </list>
+      <p>Due to this, it impossible to list in documentation what algorithms that are available in a certain installation.</p>
+      <p>There is an important command to list the actual algorithms and their ordering:
+      <seealso marker="ssh#default_algorithms-0">ssh:default_algorithms/0</seealso>.</p>
+      <code type="erl">
+0> ssh:default_algorithms().
+[{kex,['ecdh-sha2-nistp384','ecdh-sha2-nistp521',
+       'ecdh-sha2-nistp256','diffie-hellman-group-exchange-sha256',
+       'diffie-hellman-group16-sha512',
+       'diffie-hellman-group18-sha512',
+       'diffie-hellman-group14-sha256',
+       'diffie-hellman-group14-sha1',
+       'diffie-hellman-group-exchange-sha1']},
+ {public_key,['ecdsa-sha2-nistp384','ecdsa-sha2-nistp521',
+              'ecdsa-sha2-nistp256','ssh-rsa','rsa-sha2-256',
+              'rsa-sha2-512','ssh-dss']},
+ {cipher,[{client2server,['[email protected]',
+                          'aes256-ctr','aes192-ctr','[email protected]',
+                          'aes128-ctr','aes128-cbc','3des-cbc']},
+          {server2client,['[email protected]','aes256-ctr',
+                          'aes192-ctr','[email protected]','aes128-ctr',
+                          'aes128-cbc','3des-cbc']}]},
+ {mac,[{client2server,['hmac-sha2-256','hmac-sha2-512',
+                       'hmac-sha1']},
+       {server2client,['hmac-sha2-256','hmac-sha2-512',
+                       'hmac-sha1']}]},
+ {compression,[{client2server,[none,'[email protected]',zlib]},
+               {server2client,[none,'[email protected]',zlib]}]}]
+
+      </code>
+      <p>To change the algorithm list, there are two options which can be used in 
+      <seealso marker="ssh#connect-3">ssh:connect/2,3,4</seealso>
+      and
+      <seealso marker="ssh#daemon-2">ssh:daemon/2,3</seealso>. The options could of course
+      be used in all other functions that initiates connections.</p>
+      
+      <p>The options are <c>preferred_algorithms</c> and <c>modify_algorithms</c>. The first one
+      replaces the default set, while the latter modifies the default set.</p>
+    </section>
+  </section>
+      
+  <section>
+    <title>Replacing the default set: preferred_algorithms</title>
+    <p>See the <seealso marker="ssh#option_preferred_algorithms">Reference Manual</seealso> for details</p>
+    
+    <p>Here follows a series of examples ranging from simple to more complex.</p>
+
+    <p>To forsee the effect of an option there is an experimental function <c>ssh:chk_algos_opts(Opts)</c>.
+    It mangles the options <c>preferred_algorithms</c>
+    and <c>modify_algorithms</c> in the same way as <c>ssh:dameon</c>, <c>ssh:connect</c> and their friends does.</p>
+
+    <section>
+      <title>Example 1</title>
+      <p>Replace the kex algorithms list with the single algorithm <c>'diffie-hellman-group14-sha256'</c>:</p>
+      <code>
+1> ssh:chk_algos_opts(
+               [{preferred_algorithms,
+                     [{kex, ['diffie-hellman-group14-sha256']}
+                     ]
+                }
+              ]).
+[{kex,['diffie-hellman-group14-sha256']},
+ {public_key,['ecdsa-sha2-nistp384','ecdsa-sha2-nistp521',
+              'ecdsa-sha2-nistp256','ssh-rsa','rsa-sha2-256',
+              'rsa-sha2-512','ssh-dss']},
+ {cipher,[{client2server,['[email protected]',
+                          'aes256-ctr','aes192-ctr','[email protected]',
+                          'aes128-ctr','aes128-cbc','3des-cbc']},
+          {server2client,['[email protected]','aes256-ctr',
+                          'aes192-ctr','[email protected]','aes128-ctr',
+                          'aes128-cbc','3des-cbc']}]},
+ {mac,[{client2server,['hmac-sha2-256','hmac-sha2-512',
+                       'hmac-sha1']},
+       {server2client,['hmac-sha2-256','hmac-sha2-512',
+                       'hmac-sha1']}]},
+ {compression,[{client2server,[none,'[email protected]',zlib]},
+               {server2client,[none,'[email protected]',zlib]}]}]
+      </code>
+      <p>Note that the unmentioned lists (<c>public_key</c>, <c>cipher</c>, <c>mac</c> and <c>compression</c>)
+      are un-changed.</p>
+    </section>
+      
+    <section>
+      <title>Example 2</title>
+      <p>In the lists that are divided in two for the two directions (c.f <c>cipher</c>) it is possible
+      to change both directions at once:</p>
+      <code>
+2> ssh:chk_algos_opts(
+               [{preferred_algorithms,
+                     [{cipher,['aes128-ctr']}
+                     ]
+                }
+              ]).
+[{kex,['ecdh-sha2-nistp384','ecdh-sha2-nistp521',
+       'ecdh-sha2-nistp256','diffie-hellman-group-exchange-sha256',
+       'diffie-hellman-group16-sha512',
+       'diffie-hellman-group18-sha512',
+       'diffie-hellman-group14-sha256',
+       'diffie-hellman-group14-sha1',
+       'diffie-hellman-group-exchange-sha1']},
+ {public_key,['ecdsa-sha2-nistp384','ecdsa-sha2-nistp521',
+              'ecdsa-sha2-nistp256','ssh-rsa','rsa-sha2-256',
+              'rsa-sha2-512','ssh-dss']},
+ {cipher,[{client2server,['aes128-ctr']},
+          {server2client,['aes128-ctr']}]},
+ {mac,[{client2server,['hmac-sha2-256','hmac-sha2-512',
+                       'hmac-sha1']},
+       {server2client,['hmac-sha2-256','hmac-sha2-512',
+                       'hmac-sha1']}]},
+ {compression,[{client2server,[none,'[email protected]',zlib]},
+               {server2client,[none,'[email protected]',zlib]}]}]
+      </code>
+      <p>Note that both lists in <c>cipher</c> has been changed to the provided value (<c>'aes128-ctr'</c>).</p>
+    </section>
+      
+    <section>
+      <title>Example 3</title>
+      <p>In the lists that are divided in two for the two directions (c.f <c>cipher</c>) it is possible
+      to change only one of the directions:</p>
+      <code>
+3> ssh:chk_algos_opts(
+               [{preferred_algorithms,
+                     [{cipher,[{client2server,['aes128-ctr']}]}
+                     ]
+                }
+              ]).
+[{kex,['ecdh-sha2-nistp384','ecdh-sha2-nistp521',
+       'ecdh-sha2-nistp256','diffie-hellman-group-exchange-sha256',
+       'diffie-hellman-group16-sha512',
+       'diffie-hellman-group18-sha512',
+       'diffie-hellman-group14-sha256',
+       'diffie-hellman-group14-sha1',
+       'diffie-hellman-group-exchange-sha1']},
+ {public_key,['ecdsa-sha2-nistp384','ecdsa-sha2-nistp521',
+              'ecdsa-sha2-nistp256','ssh-rsa','rsa-sha2-256',
+              'rsa-sha2-512','ssh-dss']},
+ {cipher,[{client2server,['aes128-ctr']},
+          {server2client,['[email protected]','aes256-ctr',
+                          'aes192-ctr','[email protected]','aes128-ctr',
+                          'aes128-cbc','3des-cbc']}]},
+ {mac,[{client2server,['hmac-sha2-256','hmac-sha2-512',
+                       'hmac-sha1']},
+       {server2client,['hmac-sha2-256','hmac-sha2-512',
+                       'hmac-sha1']}]},
+ {compression,[{client2server,[none,'[email protected]',zlib]},
+               {server2client,[none,'[email protected]',zlib]}]}]
+      </code>
+    </section>
+
+    <section>
+      <title>Example 4</title>
+      <p>It is of course possible to change more than one list:</p>
+      <code>
+4> ssh:chk_algos_opts(
+               [{preferred_algorithms,
+                     [{cipher,['aes128-ctr']},
+		      {mac,['hmac-sha2-256']},
+                      {kex,['ecdh-sha2-nistp384']},
+		      {public_key,['ssh-rsa']},
+		      {compression,[{server2client,[none]},
+		                    {client2server,[zlib]}]}
+                     ]
+                }
+              ]).
+[{kex,['ecdh-sha2-nistp384']},
+ {public_key,['ssh-rsa']},
+ {cipher,[{client2server,['aes128-ctr']},
+          {server2client,['aes128-ctr']}]},
+ {mac,[{client2server,['hmac-sha2-256']},
+       {server2client,['hmac-sha2-256']}]},
+ {compression,[{client2server,[zlib]},
+               {server2client,[none]}]}]
+
+      </code>
+      <p>Note that the ordering of the tuples in the lists didn't matter.</p>
+    </section>
+  </section>    
+  
+  <section>
+    <title>Modifying the default set: modify_algorithms</title>
+    <p>A situation where it might be useful to add an algorithm is when one need to use a supported but disabled one.
+    An example is the <c>'diffie-hellman-group1-sha1'</c> which nowadays is very unsecure and therefore disabled. It is 
+    however still supported and might be used.</p>
+    
+    <p>The option <c>preferred_algorithms</c> may be complicated to use for adding or removing single algorithms.
+    First one has to list them with <c>ssh:default_algorithms()</c> and then do changes in the lists.</p>
+
+    <p>To facilitate addition or removal of algorithms the option <c>modify_algorithms</c> is available.
+    See the <seealso marker="ssh#option_modify_algorithms">Reference Manual</seealso> for details.</p>
+ 
+    <p>The option takes a list with instructions to append, prepend or remove algorithms:</p>
+    <code type="erl">
+{modify_algorithms, [{append,  ...},
+                     {prepend, ...},
+		     {rm,      ...}
+		    ]}
+    </code>
+    <p>Each of the <c>...</c> can be a <c>algs_list()</c> as the argument to the  <c>preferred_algorithms</c> option.</p>
+    <section>
+      <title>Example 5</title>
+      <p>As an example let's add the Diffie-Hellman Group1 first in the kex list. It is supported according to 
+      <seealso marker="SSH_app#supported_algos">Supported algoritms</seealso>.</p>
+      <code type="erl">
+5> ssh:chk_algos_opts(
+         [{modify_algorithms,
+	       [{prepend,
+	           [{kex,['diffie-hellman-group1-sha1']}]
+		   }
+	       ]
+          }
+        ]).
+[{kex,['diffie-hellman-group1-sha1','ecdh-sha2-nistp384',
+       'ecdh-sha2-nistp521','ecdh-sha2-nistp256',
+       'diffie-hellman-group-exchange-sha256',
+       'diffie-hellman-group16-sha512',
+       'diffie-hellman-group18-sha512',
+       'diffie-hellman-group14-sha256',
+       'diffie-hellman-group14-sha1',
+       'diffie-hellman-group-exchange-sha1']},
+ {public_key,['ecdsa-sha2-nistp384','ecdsa-sha2-nistp521',
+              'ecdsa-sha2-nistp256','ssh-rsa','rsa-sha2-256',
+              'rsa-sha2-512','ssh-dss']},
+ {cipher,[{client2server,['[email protected]',
+                          'aes256-ctr','aes192-ctr','[email protected]',
+                          'aes128-ctr','aes128-cbc','3des-cbc']},
+          {server2client,['[email protected]','aes256-ctr',
+                          'aes192-ctr','[email protected]','aes128-ctr',
+                          'aes128-cbc','3des-cbc']}]},
+ {mac,[{client2server,['hmac-sha2-256','hmac-sha2-512',
+                       'hmac-sha1']},
+       {server2client,['hmac-sha2-256','hmac-sha2-512',
+                       'hmac-sha1']}]},
+ {compression,[{client2server,[none,'[email protected]',zlib]},
+               {server2client,[none,'[email protected]',zlib]}]}]
+
+      </code>
+      <p>And the result shows that the Diffie-Hellman Group1 is added at the head of the kex list</p>
+    </section>
+    
+    <section>
+      <title>Example 6</title>
+      <p>In this example, we in put the 'diffie-hellman-group1-sha1' first and also move the
+      <c>'ecdh-sha2-nistp521'</c> to the end in the kex list, that is, <c>append</c> it.</p>
+      <code type="erl">
+6> ssh:chk_algos_opts(
+         [{modify_algorithms,
+	       [{prepend,
+	           [{kex, ['diffie-hellman-group1-sha1']}
+		   ]},
+		{append,
+                   [{kex, ['ecdh-sha2-nistp521']}
+                   ]}
+	       ]
+          }
+        ]).
+[{kex,['diffie-hellman-group1-sha1','ecdh-sha2-nistp384',
+       'ecdh-sha2-nistp256','diffie-hellman-group-exchange-sha256',
+       'diffie-hellman-group16-sha512',
+       'diffie-hellman-group18-sha512',
+       'diffie-hellman-group14-sha256',
+       'diffie-hellman-group14-sha1',
+       'diffie-hellman-group-exchange-sha1','ecdh-sha2-nistp521']},
+ {public_key,['ecdsa-sha2-nistp384','ecdsa-sha2-nistp521',
+   .....
+] 
+      </code>
+      <p>Note that the appended algorithm is removed from its original place and then appended to the same list.</p>
+    </section>
+    
+    <section>
+      <title>Example 7</title>
+      <p>In this example, we use both options (<c>preferred_algorithms</c> and <c>modify_algorithms</c>) and
+      also try to prepend an unsupported algorithm.   Any unsupported algorithm is quietly removed.</p>
+      <code type="erl">
+7> ssh:chk_algos_opts(
+         [{preferred_algorithms,
+               [{cipher,['aes128-ctr']},
+	        {mac,['hmac-sha2-256']},
+                {kex,['ecdh-sha2-nistp384']},
+		{public_key,['ssh-rsa']},
+		{compression,[{server2client,[none]},
+		              {client2server,[zlib]}]}
+               ]
+           },
+          {modify_algorithms,
+	       [{prepend,
+	           [{kex, ['some unsupported algorithm']}
+		   ]},
+		{append,
+                   [{kex, ['diffie-hellman-group1-sha1']}
+                   ]}
+	       ]
+          }
+        ]).
+[{kex,['ecdh-sha2-nistp384','diffie-hellman-group1-sha1']},
+ {public_key,['ssh-rsa']},
+ {cipher,[{client2server,['aes128-ctr']},
+          {server2client,['aes128-ctr']}]},
+ {mac,[{client2server,['hmac-sha2-256']},
+       {server2client,['hmac-sha2-256']}]},
+ {compression,[{client2server,[zlib]},
+               {server2client,[none]}]}]
+
+      </code>
+      <p>It is of course questionable why anyone would like to use the both these options together,
+      but it is possible if an unforeseen need should arise.</p>
+    </section>
+    
+    
+    
+  </section>
+
+</chapter>
diff --git a/lib/ssh/doc/src/fascicules.xml b/lib/ssh/doc/src/fascicules.xml
deleted file mode 100644
index 7e99398c16..0000000000
--- a/lib/ssh/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="usersguide" href="usersguide_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/ssh/doc/src/notes.xml b/lib/ssh/doc/src/notes.xml
index 5826d14a4a..ef3e94a1e1 100644
--- a/lib/ssh/doc/src/notes.xml
+++ b/lib/ssh/doc/src/notes.xml
@@ -30,6 +30,76 @@
     <file>notes.xml</file>
   </header>
 
+<section><title>Ssh 4.6.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Fixed broken printout</p>
+          <p>
+	    Own Id: OTP-14645</p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    Disable aes_gcm ciphers if peer is OpenSSH 6.2 which is
+	    known to have trouble with them in some cases.</p>
+          <p>
+	    Own Id: OTP-14638</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
+<section><title>Ssh 4.6</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Enables the <c>ssh_io module</c> to also accept binary
+	    values when reading standard_io instead of getting stuck
+	    in the receive clause.</p>
+          <p>
+	    Own Id: OTP-14506 Aux Id: PR1503 </p>
+        </item>
+        <item>
+          <p>
+	    Previously, the file owner access permission in response
+	    to ssh_sftp:read_file_info/2 function was always
+	    <c>read_write</c>. With this fix, the actual value of
+	    file owner access permission is added to the returning
+	    record. That value is calculated from file mode value.</p>
+          <p>
+	    Own Id: OTP-14550 Aux Id: PR1533 </p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    A new option <c>modify_algorithms</c> is implemented. It
+	    enables specifying changes on the default algorithms
+	    list. See the reference manual and the SSH User's Guide
+	    chapter "Configuring algorithms in SSH".</p>
+          <p>
+	    Own Id: OTP-14568</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Ssh 4.5.1</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/ssh/doc/src/part_notes.xml b/lib/ssh/doc/src/part_notes.xml
deleted file mode 100644
index aaca8ca9f2..0000000000
--- a/lib/ssh/doc/src/part_notes.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-
-    </legalnotice>
-
-    <title>SSH Release Notes</title>
-    <prepared>Jakob Cederlund</prepared>
-    <docno></docno>
-    <date></date>
-    <rev>%VSN%</rev>
-    <file>part_notes.sgml</file>
-  </header>
-  <description>
-    <p>This document describes the changes made to the SSH application.
-      </p>
-  </description>
-  <xi:include file="notes.xml"/>
-</part>
-
diff --git a/lib/ssh/doc/src/ssh.xml b/lib/ssh/doc/src/ssh.xml
index ea7e975ef5..337f4094cc 100644
--- a/lib/ssh/doc/src/ssh.xml
+++ b/lib/ssh/doc/src/ssh.xml
@@ -108,6 +108,9 @@
       
       <tag><c>double_algs() =</c></tag>
       <item><p><c>[{client2serverlist,simple_algs()},{server2client,simple_algs()}] | simple_algs()</c></p></item>
+
+      <tag><c>modify_algs_list() =</c></tag>
+      <item><p><c>list( {append,algs_list()} | {prepend,algs_list()} | {rm,algs_list()} )</c></p></item>
      </taglist>
 </section>
 
@@ -175,6 +178,12 @@
 	    supplied with this option.
 	    </p>
 	  </item>
+	  <tag><c><![CDATA[{ecdsa_pass_phrase, string()}]]></c></tag>
+	  <item>
+	    <p>If the user ECDSA key is protected by a passphrase, it can be
+	    supplied with this option.
+	    </p>
+	  </item>
           <tag>
             <c><![CDATA[{silently_accept_hosts, boolean()}]]></c> <br/>
             <c><![CDATA[{silently_accept_hosts, CallbackFun}]]></c> <br/>
@@ -254,7 +263,8 @@
 	    </p>
 	  </item>
 
-	  <tag><c><![CDATA[{preferred_algorithms, algs_list()}]]></c></tag>
+	  <tag><marker id="option_preferred_algorithms"></marker>
+	  <c><![CDATA[{preferred_algorithms, algs_list()}]]></c></tag>
 	  <item>
             <p>List of algorithms to use in the algorithm negotiation. The default <c>algs_list()</c> can
 	    be obtained from <seealso marker="#default_algorithms/0">default_algorithms/0</seealso>.
@@ -275,6 +285,8 @@
 	for cipher but specifies the same algorithms for mac and compression in both directions.
 	The kex (key exchange) is implicit but public_key is set explicitly.</p>
 
+	<p>For background and more examples see the <seealso marker="configure_algos#introduction">User's Guide</seealso>.</p>
+
         <warning>
 	  <p>Changing the values can make a connection less secure. Do not change unless you
 	  know exactly what you are doing. If you do not understand the values then you
@@ -282,6 +294,62 @@
 	</warning>
 	  </item>
 
+	  <tag><marker id="option_modify_algorithms"></marker>
+	  <c><![CDATA[{modify_algorithms, modify_algs_list()}]]></c></tag>
+	  <item>
+	    <p>Modifies the list of algorithms to use in the algorithm negotiation. The modifications are
+	    applied after the option <c>preferred_algorithms</c> (if existing) is applied.</p>
+	    <p>The algoritm for modifications works like this:</p>
+	    <list>
+	      <item>
+		<p>Input is the <c>modify_algs_list()</c> and a set of algorithms <c>A</c>
+		obtained from the <c>preferred_algorithms</c> option if existing, or else from the
+		<seealso marker="ssh#default_algorithms-0">ssh:default_algorithms/0</seealso>.
+		</p>
+	      </item>
+	      <item>
+		<p>The head of the <c>modify_algs_list()</c> modifies <c>A</c> giving the result <c>A'</c>.</p>
+		<p>The possible modifications are:</p>
+		<list>
+		  <item>
+		    <p>Append or prepend supported but not enabled algorithm(s) to the list of
+		    algorithms. If the wanted algorithms already are in <c>A</c> they will first
+		    be removed and then appended or prepended,
+		    </p>
+		  </item>
+		  <item>
+		    <p>Remove (rm) one or more algorithms from <c>A</c>.
+		    </p>
+		  </item>
+		</list>
+	      </item>
+	      <item>
+		<p>Repeat the modification step with the tail of <c>modify_algs_list()</c> and the resulting
+		<c>A'</c>.
+		</p>
+	      </item>
+	    </list>
+	    <p>If an unsupported algorithm is in the <c>modify_algs_list()</c>, it will be silently ignored</p>
+	    <p>If there are more than one modify_algorithms options, the result is undefined.</p>
+	    <p>Here is an example of this option:</p>
+	<code>
+{modify_algorithms, 
+ [{prepend, [{kex, ['diffie-hellman-group1-sha1']}],
+  {rm,      [{compression, [none]}]}
+ ]
+}
+</code>
+          <p>The example specifies that:</p>
+	  <list>
+	    <item><p>the old key exchange algorithm 'diffie-hellman-group1-sha1' should be
+	    the main alternative. It will be the main alternative since it is prepened to the list</p>
+	    </item>
+	    <item><p>The compression algorithm none (= no compression) is removed so compression is enforced</p>
+	    </item>
+	  </list>
+	  <p>For background and more examples see the <seealso marker="configure_algos#introduction">User's Guide</seealso>.</p>
+	  </item>
+
 	  <tag><c><![CDATA[{dh_gex_limits,{Min=integer(),I=integer(),Max=integer()}}]]></c></tag>
 	  <item>
 	    <p>Sets the three diffie-hellman-group-exchange parameters that guides the connected server in choosing a group.
@@ -555,6 +623,8 @@
 	for cipher but specifies the same algorithms for mac and compression in both directions.
 	The kex (key exchange) is implicit but public_key is set explicitly.</p>
 
+	<p>For background and more examples see the <seealso marker="configure_algos#introduction">User's Guide</seealso>.</p>
+
         <warning>
 	  <p>Changing the values can make a connection less secure. Do not change unless you
 	  know exactly what you are doing. If you do not understand the values then you
@@ -562,6 +632,41 @@
 	</warning>
 	  </item>
 
+	  <tag><marker id="option_modify_algorithms"></marker>
+	  <c><![CDATA[{modify_algorithms, modify_algs_list()}]]></c></tag>
+	  <item>
+	    <p>Modifies the list of algorithms to use in the algorithm negotiation. The modifications are
+	    applied after the option <c>preferred_algorithms</c> is applied (if existing)</p>
+	    <p>The possible modifications are to:</p>
+	    <list>
+	      <item><p>Append or prepend supported but not enabled algorithm(s) to the list of
+	      algorithms.</p><p>If the wanted algorithms already are in the list of algorithms, they will first
+	      be removed and then appended or prepended.
+	    </p>
+	      </item>
+	      <item><p>Remove (rm) one or more algorithms from the list of algorithms.</p></item>
+	    </list>
+	    <p>If an unsupported algorithm is in the list, it will be silently ignored</p>
+
+	    <p>Here is an example of this option:</p>
+	<code>
+{modify_algorithms, 
+ [{prepend, [{kex, ['diffie-hellman-group1-sha1']}],
+  {rm,      [{compression, [none]}]}
+ ]
+}
+</code>
+          <p>The example specifies that:</p>
+	  <list>
+	    <item><p>the old key exchange algorithm 'diffie-hellman-group1-sha1' should be
+	    the main alternative. It will be the main alternative since it is prepened to the list</p>
+	    </item>
+	    <item><p>The compression algorithm none (= no compression) is removed so compression is enforced</p>
+	    </item>
+	  </list>
+	  <p>For background and more examples see the <seealso marker="configure_algos#introduction">User's Guide</seealso>.</p>
+	  </item>
+
 	  <tag><c><![CDATA[{dh_gex_groups, [{Size=integer(),G=integer(),P=integer()}] | {file,filename()} {ssh_moduli_file,filename()} }]]></c></tag>
 	  <item>
 	    <p>Defines the groups the server may choose among when diffie-hellman-group-exchange is negotiated.
diff --git a/lib/ssh/doc/src/ssh_app.xml b/lib/ssh/doc/src/ssh_app.xml
index 33ec7aaee0..1cbbdfcf38 100644
--- a/lib/ssh/doc/src/ssh_app.xml
+++ b/lib/ssh/doc/src/ssh_app.xml
@@ -97,7 +97,7 @@
     <p>The <c>known_hosts</c> file contains a list of approved servers and
       their public keys. Once a server is listed, it can be verified
       without user interaction.
-      </p>
+     </p>
   </section>
  <section>
     <title>Authorized Keys</title>
@@ -135,7 +135,7 @@
     </p>
 
     <p>Supported algorithms are:</p>
-
+    <marker id="supported_algos"></marker>
     <taglist>
       <tag>Key exchange algorithms</tag>
       <item>
diff --git a/lib/ssh/doc/src/usersguide.xml b/lib/ssh/doc/src/usersguide.xml
index 70051ba771..d902df6848 100644
--- a/lib/ssh/doc/src/usersguide.xml
+++ b/lib/ssh/doc/src/usersguide.xml
@@ -36,4 +36,5 @@
   </description>
   <xi:include href="introduction.xml"/>
   <xi:include href="using_ssh.xml"/>
+  <xi:include href="configure_algos.xml"/>
 </part>
diff --git a/lib/ssh/src/ssh.erl b/lib/ssh/src/ssh.erl
index 5ebab43c30..1a5d48baca 100644
--- a/lib/ssh/src/ssh.erl
+++ b/lib/ssh/src/ssh.erl
@@ -35,6 +35,7 @@
 	 daemon/1, daemon/2, daemon/3,
 	 daemon_info/1,
 	 default_algorithms/0,
+         chk_algos_opts/1,
 	 stop_listener/1, stop_listener/2,  stop_listener/3,
 	 stop_daemon/1, stop_daemon/2, stop_daemon/3,
 	 shell/1, shell/2, shell/3
@@ -381,6 +382,27 @@ default_algorithms() ->
     ssh_transport:default_algorithms().
 
 %%--------------------------------------------------------------------
+-spec chk_algos_opts(list(any())) -> algs_list() .
+%%--------------------------------------------------------------------
+chk_algos_opts(Opts) ->
+    case lists:foldl(
+           fun({preferred_algorithms,_}, Acc) -> Acc;
+              ({modify_algorithms,_}, Acc) -> Acc;
+              (KV, Acc) -> [KV|Acc]
+           end, [], Opts)
+    of
+        [] ->
+            case ssh_options:handle_options(client, Opts) of
+                M when is_map(M) ->
+                    maps:get(preferred_algorithms, M);
+                Others ->
+                    Others
+            end;
+        OtherOps ->
+            {error, {non_algo_opts_found,OtherOps}}
+    end.
+
+%%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
 %% The handle_daemon_args/2 function basically only sets the ip-option in Opts
diff --git a/lib/ssh/src/ssh_connection_handler.erl b/lib/ssh/src/ssh_connection_handler.erl
index 8d3ddb09a4..4158a52a27 100644
--- a/lib/ssh/src/ssh_connection_handler.erl
+++ b/lib/ssh/src/ssh_connection_handler.erl
@@ -1357,6 +1357,7 @@ handle_event(info, UnexpectedMessage, StateName, D = #data{ssh_params = Ssh}) ->
 	report ->
 	    Msg = lists:flatten(
 		    io_lib:format(
+                      "*** SSH: "
 		      "Unexpected message '~p' received in state '~p'\n"
 		      "Role: ~p\n"
 		      "Peer: ~p\n"
@@ -1365,7 +1366,7 @@ handle_event(info, UnexpectedMessage, StateName, D = #data{ssh_params = Ssh}) ->
                        StateName,
                        Ssh#ssh.role, 
                        Ssh#ssh.peer,
-                       ?GET_INTERNAL_OPT(address, Ssh#ssh.opts)])),
+                       ?GET_INTERNAL_OPT(address, Ssh#ssh.opts, undefined)])),
 	    error_logger:info_report(Msg),
 	    keep_state_and_data;
 
@@ -1374,7 +1375,8 @@ handle_event(info, UnexpectedMessage, StateName, D = #data{ssh_params = Ssh}) ->
 
 	Other ->
 	    Msg = lists:flatten(
-		    io_lib:format("Call to fun in 'unexpectedfun' failed:~n"
+		    io_lib:format("*** SSH: "
+                                  "Call to fun in 'unexpectedfun' failed:~n"
 				  "Return: ~p\n"
 				  "Message: ~p\n"
 				  "Role: ~p\n"
@@ -1383,8 +1385,8 @@ handle_event(info, UnexpectedMessage, StateName, D = #data{ssh_params = Ssh}) ->
                                   [Other,
                                    UnexpectedMessage,
                                    Ssh#ssh.role,
-                                   element(2,Ssh#ssh.peer),
-                                   ?GET_INTERNAL_OPT(address, Ssh#ssh.opts)]
+                                   Ssh#ssh.peer,
+                                   ?GET_INTERNAL_OPT(address, Ssh#ssh.opts, undefined)]
 				 )),
 	    error_logger:error_report(Msg),
 	    keep_state_and_data
diff --git a/lib/ssh/src/ssh_dbg.erl b/lib/ssh/src/ssh_dbg.erl
index 3f742ad9b6..af9ad52d68 100644
--- a/lib/ssh/src/ssh_dbg.erl
+++ b/lib/ssh/src/ssh_dbg.erl
@@ -24,6 +24,8 @@
 
 -export([messages/0, messages/1, messages/2, messages/3,
 	 auth/0,     auth/1,     auth/2,     auth/3,
+	 algs/0,     algs/1,     algs/2,     algs/3,
+	 hostkey/0,  hostkey/1,  hostkey/2,  hostkey/3,
 	 stop/0
 	]).
 
@@ -46,6 +48,16 @@ auth(F) -> start(auth,F).
 auth(F,X) -> start(auth,F,X).
 auth(F,M,I) -> start(auth,F,M,I).
 
+algs() -> start(algs).
+algs(F) -> start(algs,F).
+algs(F,X) -> start(algs,F,X).
+algs(F,M,I) -> start(algs,F,M,I).
+
+hostkey() -> start(hostkey).
+hostkey(F) -> start(hostkey,F).
+hostkey(F,X) -> start(hostkey,F,X).
+hostkey(F,M,I) -> start(hostkey,F,M,I).
+
 stop() -> dbg:stop().
 
 %%%----------------------------------------------------------------
@@ -71,23 +83,49 @@ fmt_fun(F) -> fun(Fmt,Args,Data) -> F(Fmt,Args), Data end.
 id_fun() ->  fun(X) -> X end.
 
 %%%----------------------------------------------------------------
-dbg_ssh(msg) ->
-    dbg_ssh(auth),
-    dbg:tp(ssh_message,encode,1, x),
-    dbg:tp(ssh_message,decode,1, x),
-    dbg:tpl(ssh_transport,select_algorithm,4, x),
-    dbg:tp(ssh_transport,hello_version_msg,1, x),
-    dbg:tp(ssh_transport,handle_hello_version,1, x),
-    dbg:tpl(ssh_connection_handler,ext_info,2, x);
+dbg_ssh(What) ->
+    case [E || E <- lists:flatten(dbg_ssh0(What)),
+               element(1,E) =/= ok] of
+        [] -> ok;
+        Other -> Other
+    end.
+            
+
+dbg_ssh0(auth) ->
+    [dbg:tp(ssh_transport,hello_version_msg,1, x),
+     dbg:tp(ssh_transport,handle_hello_version,1, x),
+     dbg:tp(ssh_message,encode,1, x),
+     dbg:tpl(ssh_transport,select_algorithm,4, x),
+     dbg:tpl(ssh_connection_handler,ext_info,2, x),
+     lists:map(fun(F) -> dbg:tp(ssh_auth, F, x) end,
+               [publickey_msg, password_msg, keyboard_interactive_msg])
+    ];
+
+dbg_ssh0(algs) ->
+    [dbg:tpl(ssh_transport,select_algorithm,4, x),
+     dbg:tpl(ssh_connection_handler,ext_info,2, x)
+    ];
+
+dbg_ssh0(hostkey) ->
+    [dbg:tpl(ssh_transport, verify_host_key, 4, x),
+     dbg:tp(ssh_transport, verify, 4, x),
+     dbg:tpl(ssh_transport, known_host_key, 3, x),
+%%     dbg:tpl(ssh_transport, accepted_host, 4, x),
+     dbg:tpl(ssh_transport, add_host_key, 4, x),
+     dbg:tpl(ssh_transport, is_host_key, 5, x)
+    ];
+
+dbg_ssh0(msg) ->
+    [dbg_ssh0(hostkey),
+     dbg_ssh0(auth),
+     dbg:tp(ssh_message,encode,1, x),
+     dbg:tp(ssh_message,decode,1, x),
+     dbg:tpl(ssh_transport,select_algorithm,4, x),
+     dbg:tp(ssh_transport,hello_version_msg,1, x),
+     dbg:tp(ssh_transport,handle_hello_version,1, x),
+     dbg:tpl(ssh_connection_handler,ext_info,2, x)
+    ].
    
-dbg_ssh(auth) ->
-    dbg:tp(ssh_transport,hello_version_msg,1, x),
-    dbg:tp(ssh_transport,handle_hello_version,1, x),
-    dbg:tp(ssh_message,encode,1, x),
-    dbg:tpl(ssh_transport,select_algorithm,4, x),
-    dbg:tpl(ssh_connection_handler,ext_info,2, x),
-    lists:foreach(fun(F) -> dbg:tp(ssh_auth, F, x) end,
-                  [publickey_msg, password_msg, keyboard_interactive_msg]).
    
 %%%================================================================
 cond_start(Type, WriteFun, MangleArgFun, Init) ->
@@ -110,10 +148,10 @@ msg_formater(msg, {trace_ts,_Pid,call,{ssh_message,decode,_},_TS}, D) ->
 msg_formater(msg, {trace_ts,Pid,return_from,{ssh_message,decode,1},Msg,TS}, D) -> 
     fmt("~n~s ~p RECV ~s~n", [ts(TS),Pid,wr_record(shrink_bin(Msg))], D);
 
-msg_formater(auth, {trace_ts,Pid,return_from,{ssh_message,decode,1},#ssh_msg_userauth_failure{authentications=As},TS}, D) -> 
+msg_formater(_auth, {trace_ts,Pid,return_from,{ssh_message,decode,1},#ssh_msg_userauth_failure{authentications=As},TS}, D) -> 
     fmt("~n~s ~p Client login FAILURE. Try ~s~n", [ts(TS),Pid,As], D);
 	
-msg_formater(auth, {trace_ts,Pid,return_from,{ssh_message,decode,1},#ssh_msg_userauth_success{},TS}, D) -> 
+msg_formater(_auth, {trace_ts,Pid,return_from,{ssh_message,decode,1},#ssh_msg_userauth_success{},TS}, D) -> 
     fmt("~n~s ~p Client login SUCCESS~n", [ts(TS),Pid], D);
 
 	
@@ -155,10 +193,50 @@ msg_formater(_, {trace_ts,Pid,return_from,{ssh_connection_handler,ext_info,2},St
             D
     end;
 
+msg_formater(_, {trace_ts,Pid,call, {ssh_transport,verify_host_key,[_Ssh,_PK,_Dgst,{AlgStr,_Sign}]},TS}, D) ->
+    fmt("~n~s ~p Client got a ~s hostkey. Will try to verify it~n", [ts(TS),Pid,AlgStr], D);
+msg_formater(_, {trace_ts,Pid,return_from, {ssh_transport,verify_host_key,4}, Result, TS}, D) ->
+    case Result of
+        ok -> fmt("~n~s ~p Hostkey verified.~n", [ts(TS),Pid], D);
+        {error,E} ->
+              fmt("~n~s ~p ***** Hostkey NOT verified: ~p ******!~n", [ts(TS),Pid,E], D);
+        _  -> fmt("~n~s ~p ***** Hostkey is NOT verified: ~p ******!~n", [ts(TS),Pid,Result], D)
+    end;
+        
+msg_formater(_, {trace_ts,Pid,return_from, {ssh_transport,verify,4}, Result, TS}, D) ->
+    case Result of
+        true -> D;
+        _ -> fmt("~n~s ~p Couldn't verify the signature!~n", [ts(TS),Pid], D)
+    end;
+
+msg_formater(_, {trace_ts,_Pid,call, {ssh_transport,is_host_key,_}, _TS}, D) -> D;
+msg_formater(_, {trace_ts,Pid,return_from, {ssh_transport,is_host_key,5}, {CbMod,Result}, TS}, D) ->
+    case Result of
+        true -> fmt("~n~s ~p Hostkey found by ~p.~n", [ts(TS),Pid,CbMod], D);
+        _    -> fmt("~n~s ~p Hostkey NOT found by ~p.~n", [ts(TS),Pid,CbMod], D)
+    end;
+
+msg_formater(_, {trace_ts,_Pid,call, {ssh_transport,add_host_key,_}, _TS}, D) -> D;
+msg_formater(_, {trace_ts,Pid,return_from, {ssh_transport,add_host_key,4}, {CbMod,Result}, TS}, D) ->
+    case Result of
+        ok -> fmt("~n~s ~p New hostkey added by ~p.~n", [ts(TS),Pid,CbMod], D);
+        _  -> D
+    end;
+
+msg_formater(_, {trace_ts,_Pid,call,{ssh_transport,known_host_key,_},_TS}, D) -> D;
+msg_formater(_, {trace_ts,Pid,return_from, {ssh_transport,known_host_key,3}, Result, TS}, D) ->
+    case Result of
+        ok -> D;
+        {error,E} -> fmt("~n~s ~p Hostkey addition failed: ~p~n", [ts(TS),Pid,E], D);
+        _ -> fmt("~n~s ~p Hostkey addition: ~p~n", [ts(TS),Pid,Result], D)
+    end;
+
 msg_formater(_, {trace_ts,Pid,call,{ssh_auth,publickey_msg,[[SigAlg,#ssh{user=User}]]},TS}, D) ->
      fmt("~n~s ~p Client will try to login user ~p with public key algorithm ~p~n", [ts(TS),Pid,User,SigAlg], D);
 msg_formater(_, {trace_ts,Pid,return_from,{ssh_auth,publickey_msg,1},{not_ok,#ssh{user=User}},TS}, D) ->
      fmt("~s ~p User ~p can't login with that kind of public key~n", [ts(TS),Pid,User], D);
+msg_formater(_, {trace_ts,Pid,return_from,{ssh_auth,publickey_msg,1},{_,#ssh{user=User}},TS}, D) ->
+     fmt("~s ~p User ~p logged in~n", [ts(TS),Pid,User], D);
 
 msg_formater(_, {trace_ts,Pid,call,{ssh_auth,password_msg,[[#ssh{user=User}]]},TS}, D) ->
      fmt("~n~s ~p Client will try to login user ~p with password~n", [ts(TS),Pid,User], D);
@@ -187,26 +265,20 @@ msg_formater(msg, {trace_ts,Pid,'receive',ErlangMsg,TS}, D) ->
     fmt("~n~s ~p ERL MSG RECEIVE~n ~p~n", [ts(TS),Pid,shrink_bin(ErlangMsg)], D);
 
 
-%% msg_formater(_, {trace_ts,_Pid,return_from,MFA,_Ret,_TS}=M, D) ->
-%%     case lists:member(MFA, [{ssh_auth,keyboard_interactive_msg,1},
-%%                             {ssh_auth,password_msg,1},
-%%                             {ssh_auth,publickey_msg,1}]) of
-%%         true ->
-%%             D;
-%%         false ->
-%%             fmt("~nDBG ~n~p~n", [shrink_bin(M)], D)
-%%     end;
-
-%% msg_formater(_, M, D) ->
-%%     fmt("~nDBG ~n~p~n", [shrink_bin(M)], D).
-
-msg_formater(_, _, D) -> 
-     D.
+msg_formater(_, _M, D) ->
+    fmt("~nDBG other ~n~p~n", [shrink_bin(_M)], D),
+    D.
 
 %%%----------------------------------------------------------------
 -record(data, {writer,
+               initialized,
                acc}).
 
+fmt(Fmt, Args,  D=#data{initialized=false}) ->
+    fmt(Fmt, Args,
+        D#data{acc = (D#data.writer)("~s~n", [initial_info()], D#data.acc),
+               initialized = true}
+       );
 fmt(Fmt, Args,  D=#data{writer=Write, acc=Acc}) ->
     D#data{acc = Write(Fmt,Args,Acc)}.
 
@@ -221,10 +293,47 @@ setup_tracer(Type, WriteFun, MangleArgFun, Init) ->
 		      msg_formater(Type, MangleArgFun(Arg), D)
 	      end,
     InitialData = #data{writer = WriteFun,
+                        initialized = false,
                         acc = Init},
     {ok,_} = dbg:tracer(process, {Handler, InitialData}),
     ok.
 
+
+initial_info() ->
+    Lines =
+        [ts(erlang:timestamp()),
+         "",
+         "SSH:"]
+        ++ as_list_of_lines(case application:get_key(ssh,vsn) of
+                                {ok,Vsn} -> Vsn;
+                                _ -> "(ssh not started)"
+                            end)
+        ++ ["",
+            "Cryptolib:"]
+        ++ as_list_of_lines(crypto:info_lib())
+        ++ ["",
+            "Crypto app:"]
+        ++ as_list_of_lines(crypto:supports()),
+    W = max_len(Lines),
+    append_lines([line_of($*, W+4)]
+                 ++ prepend_lines("* ", Lines)
+                 ++ [line_of($-, W+4)],
+                 io_lib:nl()
+               ).
+    
+    
+as_list_of_lines(Term) ->
+    prepend_lines("  ",
+                  string:tokens(lists:flatten(io_lib:format("~p",[Term])),
+                                io_lib:nl()  % Get line endings in current OS
+                               )
+                 ).
+
+line_of(Char,W) -> lists:duplicate(W,Char).
+max_len(L) -> lists:max([length(S) || S<-L]).
+append_lines(L, X)  -> [S++X || S<-L].
+prepend_lines(X, L) -> [X++S || S<-L].
+
 %%%----------------------------------------------------------------
 shrink_bin(B) when is_binary(B), size(B)>256 -> {'*** SHRINKED BIN',
 						 size(B),
diff --git a/lib/ssh/src/ssh_message.erl b/lib/ssh/src/ssh_message.erl
index b1fc05ae33..eb06f05a4a 100644
--- a/lib/ssh/src/ssh_message.erl
+++ b/lib/ssh/src/ssh_message.erl
@@ -252,12 +252,12 @@ encode(#ssh_msg_kexdh_init{e = E}) ->
     <<?Ebyte(?SSH_MSG_KEXDH_INIT), ?Empint(E)>>;
 
 encode(#ssh_msg_kexdh_reply{
-	  public_host_key = Key,
+	  public_host_key = {Key,SigAlg},
 	  f = F,
 	  h_sig = Signature
 	 }) ->
     EncKey = public_key:ssh_encode(Key, ssh2_pubkey),
-    EncSign = encode_signature(Key, Signature),
+    EncSign = encode_signature(Key, SigAlg, Signature),
     <<?Ebyte(?SSH_MSG_KEXDH_REPLY), ?Ebinary(EncKey), ?Empint(F), ?Ebinary(EncSign)>>;
 
 encode(#ssh_msg_kex_dh_gex_request{
@@ -278,20 +278,20 @@ encode(#ssh_msg_kex_dh_gex_init{e = Public}) ->
 
 encode(#ssh_msg_kex_dh_gex_reply{
 	  %% Will be private key encode_host_key extracts only the public part!
-	  public_host_key = Key,
+	  public_host_key = {Key,SigAlg},
 	  f = F,
 	  h_sig = Signature
 	 }) ->
     EncKey = public_key:ssh_encode(Key, ssh2_pubkey),
-    EncSign = encode_signature(Key, Signature),
+    EncSign = encode_signature(Key, SigAlg, Signature),
     <<?Ebyte(?SSH_MSG_KEX_DH_GEX_REPLY), ?Ebinary(EncKey), ?Empint(F), ?Ebinary(EncSign)>>;
 
 encode(#ssh_msg_kex_ecdh_init{q_c = Q_c}) ->
     <<?Ebyte(?SSH_MSG_KEX_ECDH_INIT), ?Empint(Q_c)>>;
 
-encode(#ssh_msg_kex_ecdh_reply{public_host_key = Key, q_s = Q_s, h_sig = Sign}) ->
+encode(#ssh_msg_kex_ecdh_reply{public_host_key = {Key,SigAlg}, q_s = Q_s, h_sig = Sign}) ->
     EncKey = public_key:ssh_encode(Key, ssh2_pubkey),
-    EncSign = encode_signature(Key, Sign),
+    EncSign = encode_signature(Key, SigAlg, Sign),
     <<?Ebyte(?SSH_MSG_KEX_ECDH_REPLY), ?Ebinary(EncKey), ?Empint(Q_s), ?Ebinary(EncSign)>>;
 
 encode(#ssh_msg_ignore{data = Data}) ->
@@ -602,12 +602,12 @@ decode_signature(<<?DEC_BIN(Alg,__0), ?UINT32(_), Signature/binary>>) ->
     {binary_to_list(Alg), Signature}.
 
 
-encode_signature({#'RSAPublicKey'{},Sign}, Signature) ->
-    SignName = list_to_binary(atom_to_list(Sign)),
+encode_signature(#'RSAPublicKey'{}, SigAlg, Signature) ->
+    SignName = list_to_binary(atom_to_list(SigAlg)),
     <<?Ebinary(SignName), ?Ebinary(Signature)>>;
-encode_signature({{_, #'Dss-Parms'{}},_}, Signature) ->
+encode_signature({_, #'Dss-Parms'{}}, _SigAlg, Signature) ->
     <<?Ebinary(<<"ssh-dss">>), ?Ebinary(Signature)>>;
-encode_signature({{#'ECPoint'{}, {namedCurve,OID}},_}, Signature) ->
+encode_signature({#'ECPoint'{}, {namedCurve,OID}}, _SigAlg, Signature) ->
     CurveName = public_key:oid2ssh_curvename(OID),
     <<?Ebinary(<<"ecdsa-sha2-",CurveName/binary>>), ?Ebinary(Signature)>>.
 
diff --git a/lib/ssh/src/ssh_options.erl b/lib/ssh/src/ssh_options.erl
index b41ad8b33b..68c99743ee 100644
--- a/lib/ssh/src/ssh_options.erl
+++ b/lib/ssh/src/ssh_options.erl
@@ -170,9 +170,10 @@ handle_options(Role, PropList0, Opts0) when is_map(Opts0),
               OptionDefinitions),
         %% Enter the user's values into the map; unknown keys are
         %% treated as socket options
-        lists:foldl(fun(KV, Vals) ->
-                            save(KV, OptionDefinitions, Vals)
-                    end, InitialMap, PropList1)
+        final_preferred_algorithms(
+          lists:foldl(fun(KV, Vals) ->
+                              save(KV, OptionDefinitions, Vals)
+                      end, InitialMap, PropList1))
     catch
         error:{eoptions, KV, undefined} -> 
             {error, {eoptions,KV}};
@@ -420,6 +421,12 @@ default(client) ->
             class => user_options
            },
 
+      {ecdsa_pass_phrase, def} =>
+          #{default => undefined,
+            chk => fun check_string/1,
+            class => user_options
+           },
+
       {silently_accept_hosts, def} =>
           #{default => false,
             chk => fun check_silently_accept_hosts/1,
@@ -509,6 +516,15 @@ default(common) ->
              class => user_options
             },
 
+       %% NOTE: This option is supposed to be used only in this very module (?MODULE). There is
+       %% a final stage in handle_options that "merges" the preferred_algorithms option and this one.
+       %% The preferred_algorithms is the one to use in the rest of the ssh application!
+       {modify_algorithms, def} =>
+           #{default => undefined, % signals error if unsupported algo in preferred_algorithms :(
+             chk => fun check_modify_algorithms/1,
+             class => user_options
+            },
+
        {id_string, def} => 
            #{default => undefined, % FIXME: see ssh_transport:ssh_vsn/0
              chk => fun(random) -> 
@@ -820,83 +836,190 @@ valid_hash(L, Ss) when is_list(L) -> lists:all(fun(S) -> valid_hash(S,Ss) end, L
 valid_hash(X,  _) -> error_in_check(X, "Expect atom or list in fingerprint spec").
 
 %%%----------------------------------------------------------------
-check_preferred_algorithms(Algs) ->
-    [error_in_check(K,"Bad preferred_algorithms key")
-     || {K,_} <- Algs,
-        not lists:keymember(K,1,ssh:default_algorithms())],
+check_modify_algorithms(M) when is_list(M) ->
+    [error_in_check(Op_KVs, "Bad modify_algorithms")
+     || Op_KVs <- M,
+        not is_tuple(Op_KVs)
+            orelse (size(Op_KVs) =/= 2)
+            orelse (not lists:member(element(1,Op_KVs), [append,prepend,rm]))],
+    {true, [{Op,normalize_mod_algs(KVs,false)} || {Op,KVs} <- M]};
+check_modify_algorithms(_) ->
+    error_in_check(modify_algorithms, "Bad option value. List expected.").
+
+
+
+
+normalize_mod_algs(KVs, UseDefaultAlgs) ->
+    normalize_mod_algs(ssh_transport:algo_classes(), KVs, [], UseDefaultAlgs).
+
+normalize_mod_algs([K|Ks], KVs0, Acc, UseDefaultAlgs) ->
+    %% Pick the expected keys in order and check if they are in the user's list
+    {Vs1, KVs} =
+        case lists:keytake(K, 1, KVs0) of
+            {value, {K,Vs0}, KVs1} ->
+                {Vs0, KVs1};
+            false ->
+                {[], KVs0}
+        end,
+    Vs = normalize_mod_alg_list(K, Vs1, UseDefaultAlgs),
+    normalize_mod_algs(Ks, KVs, [{K,Vs} | Acc], UseDefaultAlgs);
+normalize_mod_algs([], [], Acc, _) ->
+    %% No values left in the key-value list after removing the expected entries
+    %% (thats good)
+    lists:reverse(Acc);
+normalize_mod_algs([], [{K,_}|_], _, _) ->
+    %% Some values left in the key-value list after removing the expected entries
+    %% (thats bad)
+    case ssh_transport:algo_class(K) of
+        true -> error_in_check(K, "Duplicate key");
+        false -> error_in_check(K, "Unknown key")
+    end;
+normalize_mod_algs([], [X|_], _, _) ->
+    error_in_check(X, "Bad list element").
+
+
+
+%%% Handle the algorithms list
+normalize_mod_alg_list(K, Vs, UseDefaultAlgs) ->
+    normalize_mod_alg_list(K,
+                           ssh_transport:algo_two_spec_class(K),
+                           Vs,
+                           def_alg(K,UseDefaultAlgs)).
+
+
+normalize_mod_alg_list(_K, _, [], Default) ->
+    Default;
+
+normalize_mod_alg_list(K, true, [{client2server,L1}], [_,{server2client,L2}]) -> 
+    [nml1(K,{client2server,L1}),
+     {server2client,L2}];
+
+normalize_mod_alg_list(K, true, [{server2client,L2}], [{client2server,L1},_]) -> 
+    [{client2server,L1},
+     nml1(K,{server2client,L2})];
+
+normalize_mod_alg_list(K, true, [{server2client,L2},{client2server,L1}], _) -> 
+    [nml1(K,{client2server,L1}),
+     nml1(K,{server2client,L2})];
+
+normalize_mod_alg_list(K, true, [{client2server,L1},{server2client,L2}], _) -> 
+    [nml1(K,{client2server,L1}),
+     nml1(K,{server2client,L2})];
+
+normalize_mod_alg_list(K, true, L0, _) ->
+    L = nml(K,L0), % Throws errors
+    [{client2server,L},
+     {server2client,L}];
+
+normalize_mod_alg_list(K, false, L, _) ->
+    nml(K,L).
 
-    try alg_duplicates(Algs, [], [])
-    of
-	[] ->
-	    {true,
-	     [case proplists:get_value(Key, Algs) of
-                  undefined ->
-                      {Key,DefAlgs};
-                  Vals ->
-                      handle_pref_alg(Key,Vals,SupAlgs)
-              end
-	      || {{Key,DefAlgs}, {Key,SupAlgs}} <- lists:zip(ssh:default_algorithms(),
-                                                             ssh_transport:supported_algorithms())
-             ]
-	    };
-
-	Dups ->
-	    error_in_check(Dups, "Duplicates")
-    catch
-	_:_ ->
-	    false
-    end.
 
-alg_duplicates([{K,V}|KVs], Ks, Dups0) ->
-    Dups =
-	case lists:member(K,Ks) of
-	    true ->  [K|Dups0];
-	    false -> Dups0
-	end,
-    case V--lists:usort(V) of
-	[] -> alg_duplicates(KVs, [K|Ks], Dups);
-	Ds -> alg_duplicates(KVs, [K|Ks], Dups++Ds)
+nml1(K, {T,V}) when T==client2server ; T==server2client ->
+    {T, nml({K,T}, V)}.
+
+nml(K, L) -> 
+    [error_in_check(K, "Bad value for this key") % This is a throw
+     || V <- L,  
+        not is_atom(V)
+    ],
+    case L -- lists:usort(L) of
+        [] -> ok;
+        Dups -> error_in_check({K,Dups}, "Duplicates") % This is a throw
+    end,
+    L.
+
+
+def_alg(K, false) ->
+    case ssh_transport:algo_two_spec_class(K) of
+        false -> [];
+        true ->  [{client2server,[]}, {server2client,[]}]
     end;
-alg_duplicates([], _Ks, Dups) ->
-    Dups.
-
-handle_pref_alg(Key,
-		Vs=[{client2server,C2Ss=[_|_]},{server2client,S2Cs=[_|_]}],
-		[{client2server,Sup_C2Ss},{server2client,Sup_S2Cs}]
-	       ) ->
-    chk_alg_vs(Key, C2Ss, Sup_C2Ss),
-    chk_alg_vs(Key, S2Cs, Sup_S2Cs),
-    {Key, Vs};
-
-handle_pref_alg(Key,
-		Vs=[{server2client,[_|_]},{client2server,[_|_]}],
-		Sup=[{client2server,_},{server2client,_}]
-	       ) ->
-    handle_pref_alg(Key, lists:reverse(Vs), Sup);
-
-handle_pref_alg(Key,
-		Vs=[V|_],
-		Sup=[{client2server,_},{server2client,_}]
-	       ) when is_atom(V) ->
-    handle_pref_alg(Key, [{client2server,Vs},{server2client,Vs}], Sup);
-
-handle_pref_alg(Key,
-		Vs=[V|_],
-		Sup=[S|_]
-	       ) when is_atom(V), is_atom(S) ->
-    chk_alg_vs(Key, Vs, Sup),
-    {Key, Vs};
-
-handle_pref_alg(Key, Vs, _) ->
-    error_in_check({Key,Vs}, "Badly formed list").
-
-chk_alg_vs(OptKey, Values, SupportedValues) ->
-    case (Values -- SupportedValues) of
-	[] -> Values;
-        [none] -> [none];                       % for testing only
-	Bad -> error_in_check({OptKey,Bad}, "Unsupported value(s) found")
+def_alg(K, true) ->
+    ssh_transport:default_algorithms(K).
+
+              
+
+check_preferred_algorithms(Algs) when is_list(Algs) ->
+    check_input_ok(Algs),
+    {true, normalize_mod_algs(Algs, true)};
+
+check_preferred_algorithms(_) ->
+    error_in_check(modify_algorithms, "Bad option value. List expected.").
+
+
+check_input_ok(Algs) ->
+    [error_in_check(KVs, "Bad preferred_algorithms")
+     || KVs <- Algs,
+        not is_tuple(KVs)
+            orelse (size(KVs) =/= 2)].
+
+%%%----------------------------------------------------------------
+final_preferred_algorithms(Options) ->
+    Result =
+        case ?GET_OPT(modify_algorithms, Options) of
+            undefined ->
+                rm_non_supported(true,
+                                 ?GET_OPT(preferred_algorithms, Options));
+            ModAlgs ->
+                rm_non_supported(false,
+                                 eval_ops(?GET_OPT(preferred_algorithms, Options),
+                                          ModAlgs))
+        end,
+    error_if_empty(Result), % Throws errors if any value list is empty
+    ?PUT_OPT({preferred_algorithms,Result}, Options).
+    
+eval_ops(PrefAlgs, ModAlgs) ->
+    lists:foldl(fun eval_op/2, PrefAlgs, ModAlgs).
+
+eval_op({Op,AlgKVs}, PrefAlgs) ->
+    eval_op(Op, AlgKVs, PrefAlgs, []).
+
+eval_op(Op, [{C,L1}|T1], [{C,L2}|T2], Acc) -> 
+    eval_op(Op, T1, T2, [{C,eval_op(Op,L1,L2,[])} | Acc]);
+
+eval_op(_,        [],   [], Acc) -> lists:reverse(Acc);
+eval_op(rm,      Opt, Pref,  []) when is_list(Opt), is_list(Pref) -> Pref -- Opt;
+eval_op(append,  Opt, Pref,  []) when is_list(Opt), is_list(Pref) -> (Pref--Opt) ++ Opt;
+eval_op(prepend, Opt, Pref,  []) when is_list(Opt), is_list(Pref) -> Opt ++ (Pref--Opt).
+
+
+rm_non_supported(UnsupIsErrorFlg, KVs) ->
+    [{K,rmns(K,Vs, UnsupIsErrorFlg)} || {K,Vs} <- KVs].
+
+rmns(K, Vs, UnsupIsErrorFlg) ->
+    case ssh_transport:algo_two_spec_class(K) of
+        false ->
+            rm_unsup(Vs, ssh_transport:supported_algorithms(K), UnsupIsErrorFlg, K);
+        true ->
+            [{C, rm_unsup(Vsx, Sup, UnsupIsErrorFlg, {K,C})} 
+             || {{C,Vsx},{C,Sup}} <- lists:zip(Vs,ssh_transport:supported_algorithms(K))
+            ]
     end.
 
+rm_unsup(A, B, Flg, ErrInf) ->
+    case A--B of
+        Unsup=[_|_] when Flg==true -> error({eoptions,
+                                             {preferred_algorithms,{ErrInf,Unsup}},
+                                             "Unsupported value(s) found"
+                                            });
+        Unsup -> A -- Unsup
+    end.
+
+            
+error_if_empty([{K,[]}|_]) ->
+    error({eoptions, K, "Empty resulting algorithm list"});
+error_if_empty([{K,[{client2server,[]}, {server2client,[]}]}]) ->
+    error({eoptions, K, "Empty resulting algorithm list"});
+error_if_empty([{K,[{client2server,[]}|_]} | _]) ->
+    error({eoptions, {K,client2server}, "Empty resulting algorithm list"});
+error_if_empty([{K,[_,{server2client,[]}|_]} | _]) ->
+    error({eoptions, {K,server2client}, "Empty resulting algorithm list"});
+error_if_empty([_|T]) ->
+    error_if_empty(T);
+error_if_empty([]) ->
+    ok.
+
 %%%----------------------------------------------------------------
 forbidden_option(K,V) ->
     Txt = io_lib:format("The option '~s' is used internally. The "
diff --git a/lib/ssh/src/ssh_transport.erl b/lib/ssh/src/ssh_transport.erl
index 412f5de9de..e92c727559 100644
--- a/lib/ssh/src/ssh_transport.erl
+++ b/lib/ssh/src/ssh_transport.erl
@@ -34,6 +34,8 @@
 -export([next_seqnum/1, 
 	 supported_algorithms/0, supported_algorithms/1,
 	 default_algorithms/0, default_algorithms/1,
+         algo_classes/0, algo_class/1,
+         algo_two_spec_classes/0, algo_two_spec_class/1,
 	 handle_packet_part/4,
 	 handle_hello_version/1,
 	 key_exchange_init_msg/1,
@@ -81,6 +83,23 @@ default_algorithms() -> [{K,default_algorithms(K)} || K <- algo_classes()].
 
 algo_classes() -> [kex, public_key, cipher, mac, compression].
 
+algo_class(kex) -> true;
+algo_class(public_key) -> true;
+algo_class(cipher) -> true;
+algo_class(mac) -> true;
+algo_class(compression) -> true;
+algo_class(_) -> false.
+
+
+algo_two_spec_classes() -> [cipher, mac, compression].
+
+algo_two_spec_class(cipher) -> true;
+algo_two_spec_class(mac) -> true;
+algo_two_spec_class(compression) -> true;
+algo_two_spec_class(_) -> false.
+
+    
+
 default_algorithms(kex) ->
     supported_algorithms(kex, [
                                'diffie-hellman-group1-sha1' % Gone in OpenSSH 7.3.p1
@@ -232,9 +251,9 @@ key_exchange_init_msg(Ssh0) ->
     {SshPacket, Ssh} = ssh_packet(Msg, Ssh0),
     {Msg, SshPacket, Ssh}.
 
-kex_init(#ssh{role = Role, opts = Opts, available_host_keys = HostKeyAlgs}) ->
+kex_init(#ssh{role = Role, opts = Opts, available_host_keys = HostKeyAlgs} = Ssh) ->
     Random = ssh_bits:random(16),
-    PrefAlgs = ?GET_OPT(preferred_algorithms, Opts),
+    PrefAlgs = adjust_algs_for_peer_version(Role, ?GET_OPT(preferred_algorithms, Opts), Ssh),
     kexinit_message(Role, Random, PrefAlgs, HostKeyAlgs, Opts).
 
 key_init(client, Ssh, Value) ->
@@ -242,7 +261,22 @@ key_init(client, Ssh, Value) ->
 key_init(server, Ssh, Value) ->
     Ssh#ssh{s_keyinit = Value}.
 
-
+adjust_algs_for_peer_version(client, PrefAlgs, #ssh{s_version=V}) ->
+    adjust_algs_for_peer_version(V, PrefAlgs);
+adjust_algs_for_peer_version(server, PrefAlgs, #ssh{c_version=V}) ->
+    adjust_algs_for_peer_version(V, PrefAlgs).
+%%
+adjust_algs_for_peer_version("SSH-2.0-OpenSSH_6.2"++_, PrefAlgs) ->
+    C0 = proplists:get_value(cipher, PrefAlgs, same([])),
+    C = [{D,L} || D <- [client2server, server2client],
+                  L <- [[K || K <- proplists:get_value(D, C0, []),
+                              K =/= '[email protected]',
+                              K =/= '[email protected]']]
+        ],
+    lists:keyreplace(cipher, 1, PrefAlgs, {cipher,C});
+adjust_algs_for_peer_version(_, PrefAlgs) ->
+    PrefAlgs.
+    
 kexinit_message(Role, Random, Algs, HostKeyAlgs, Opts) ->
     #ssh_msg_kexinit{
 		  cookie = Random,
@@ -392,7 +426,7 @@ handle_kexdh_init(#ssh_msg_kexdh_init{e = E},
 	    K = compute_key(dh, E, Private, [P,G]),
 	    MyPrivHostKey = get_host_key(Ssh0, SignAlg),
 	    MyPubHostKey = extract_public_key(MyPrivHostKey),
-            H = kex_hash(Ssh0, MyPubHostKey, SignAlg, sha(Kex), {E,Public,K}),
+            H = kex_hash(Ssh0, MyPubHostKey, sha(Kex), {E,Public,K}),
             H_SIG = sign(H, sha(SignAlg), MyPrivHostKey),
 	    {SshPacket, Ssh1} = 
 		ssh_packet(#ssh_msg_kexdh_reply{public_host_key = {MyPubHostKey,SignAlg},
@@ -417,13 +451,12 @@ handle_kexdh_reply(#ssh_msg_kexdh_reply{public_host_key = PeerPubHostKey,
 					f = F,
 					h_sig = H_SIG}, 
 		   #ssh{keyex_key = {{Private, Public}, {G, P}},
-                        algorithms = #alg{kex=Kex,
-                                          hkey=SignAlg}} = Ssh0) ->
+                        algorithms = #alg{kex=Kex}} = Ssh0) ->
     %% client
     if 
 	1=<F, F=<(P-1)->
 	    K = compute_key(dh, F, Private, [P,G]),
-            H = kex_hash(Ssh0, PeerPubHostKey, SignAlg, sha(Kex), {Public,F,K}),
+            H = kex_hash(Ssh0, PeerPubHostKey, sha(Kex), {Public,F,K}),
 	    case verify_host_key(Ssh0, PeerPubHostKey, H, H_SIG) of
 		ok ->
 		    {SshPacket, Ssh} = ssh_packet(#ssh_msg_newkeys{}, Ssh0),
@@ -556,7 +589,7 @@ handle_kex_dh_gex_init(#ssh_msg_kex_dh_gex_init{e = E},
 		1<K, K<(P-1) ->
 		    MyPrivHostKey = get_host_key(Ssh0, SignAlg),
 		    MyPubHostKey = extract_public_key(MyPrivHostKey),
-                    H = kex_hash(Ssh0, MyPubHostKey, SignAlg, sha(Kex), {Min,NBits,Max,P,G,E,Public,K}),
+                    H = kex_hash(Ssh0, MyPubHostKey, sha(Kex), {Min,NBits,Max,P,G,E,Public,K}),
                     H_SIG = sign(H, sha(SignAlg), MyPrivHostKey),
 		    {SshPacket, Ssh} = 
 			ssh_packet(#ssh_msg_kex_dh_gex_reply{public_host_key = {MyPubHostKey,SignAlg},
@@ -586,8 +619,7 @@ handle_kex_dh_gex_reply(#ssh_msg_kex_dh_gex_reply{public_host_key = PeerPubHostK
 						  h_sig = H_SIG},
 			#ssh{keyex_key = {{Private, Public}, {G, P}},
 			     keyex_info = {Min, Max, NBits},
-                             algorithms = #alg{kex=Kex,
-                                               hkey=SignAlg}} = 
+                             algorithms = #alg{kex=Kex}} = 
 			    Ssh0) ->
     %% client
     if 
@@ -595,7 +627,7 @@ handle_kex_dh_gex_reply(#ssh_msg_kex_dh_gex_reply{public_host_key = PeerPubHostK
 	    K = compute_key(dh, F, Private, [P,G]),
 	    if
 		1<K, K<(P-1) ->
-                    H = kex_hash(Ssh0, PeerPubHostKey, SignAlg, sha(Kex), {Min,NBits,Max,P,G,Public,F,K}),
+                    H = kex_hash(Ssh0, PeerPubHostKey, sha(Kex), {Min,NBits,Max,P,G,Public,F,K}),
 		    case verify_host_key(Ssh0, PeerPubHostKey, H, H_SIG) of
 			ok ->
 			    {SshPacket, Ssh} = ssh_packet(#ssh_msg_newkeys{}, Ssh0),
@@ -642,7 +674,7 @@ handle_kex_ecdh_init(#ssh_msg_kex_ecdh_init{q_c = PeerPublic},
 	K ->
 	    MyPrivHostKey = get_host_key(Ssh0, SignAlg),
 	    MyPubHostKey = extract_public_key(MyPrivHostKey),
-            H = kex_hash(Ssh0, MyPubHostKey, SignAlg, sha(Curve), {PeerPublic, MyPublic, K}),
+            H = kex_hash(Ssh0, MyPubHostKey, sha(Curve), {PeerPublic, MyPublic, K}),
             H_SIG = sign(H, sha(SignAlg), MyPrivHostKey),
 	    {SshPacket, Ssh1} = 
 		ssh_packet(#ssh_msg_kex_ecdh_reply{public_host_key = {MyPubHostKey,SignAlg},
@@ -665,15 +697,15 @@ handle_kex_ecdh_init(#ssh_msg_kex_ecdh_init{q_c = PeerPublic},
 handle_kex_ecdh_reply(#ssh_msg_kex_ecdh_reply{public_host_key = PeerPubHostKey,
 					      q_s = PeerPublic,
 					      h_sig = H_SIG},
-		      #ssh{keyex_key = {{MyPublic,MyPrivate}, Curve},
-                           algorithms = #alg{hkey=SignAlg}} = Ssh0
+		      #ssh{keyex_key = {{MyPublic,MyPrivate}, Curve}
+                          } = Ssh0
 		     ) ->
     %% at client
     try
 	compute_key(ecdh, PeerPublic, MyPrivate, Curve)
     of
 	K ->
-            H = kex_hash(Ssh0, PeerPubHostKey,  SignAlg, sha(Curve), {MyPublic,PeerPublic,K}),
+            H = kex_hash(Ssh0, PeerPubHostKey, sha(Curve), {MyPublic,PeerPublic,K}),
 	    case verify_host_key(Ssh0, PeerPubHostKey, H, H_SIG) of
 		ok ->
 		    {SshPacket, Ssh} = ssh_packet(#ssh_msg_newkeys{}, Ssh0),
@@ -790,6 +822,7 @@ verify_host_key(#ssh{algorithms=Alg}=SSH, PublicKey, Digest, {AlgStr,Signature})
     end.
 
 
+%%% -> boolean() | {error,_}
 accepted_host(Ssh, PeerName, Public, Opts) ->
     case ?GET_OPT(silently_accept_hosts, Opts) of
 
@@ -811,11 +844,16 @@ accepted_host(Ssh, PeerName, Public, Opts) ->
 
         %% Call-back alternatives: A user provided fun is called for the decision:
         F when is_function(F,2) ->
-	    true == (catch F(PeerName, public_key:ssh_hostkey_fingerprint(Public)));
+            case catch F(PeerName, public_key:ssh_hostkey_fingerprint(Public)) of
+                true -> true;
+                _ -> {error, fingerprint_check_failed}
+            end;
 
 	{DigestAlg,F} when is_function(F,2) ->
-	    true == (catch F(PeerName, public_key:ssh_hostkey_fingerprint(DigestAlg,Public)))
-        
+            case catch F(PeerName, public_key:ssh_hostkey_fingerprint(DigestAlg,Public)) of
+                true -> true;
+                _ -> {error, {fingerprint_check_failed,DigestAlg}}
+            end
     end.
 
 
@@ -833,18 +871,27 @@ fmt_hostkey(X) -> X.
 known_host_key(#ssh{opts = Opts, key_cb = {KeyCb,KeyCbOpts}, peer = {PeerName,_}} = Ssh, 
 	       Public, Alg) ->
     UserOpts = ?GET_OPT(user_options, Opts),
-    case KeyCb:is_host_key(Public, PeerName, Alg, [{key_cb_private,KeyCbOpts}|UserOpts]) of
-	true ->
+    case is_host_key(KeyCb, Public, PeerName, Alg, [{key_cb_private,KeyCbOpts}|UserOpts]) of
+	{_,true} ->
 	    ok;
-	false ->
+	{_,false} ->
 	    case accepted_host(Ssh, PeerName, Public, Opts) of
 		true ->
-		    KeyCb:add_host_key(PeerName, Public, [{key_cb_private,KeyCbOpts}|UserOpts]);
+		    {_,R} = add_host_key(KeyCb, PeerName, Public, [{key_cb_private,KeyCbOpts}|UserOpts]),
+                    R;
 		false ->
-		    {error, rejected}
+		    {error, rejected_by_user};
+                {error,E} ->
+                    {error,E}
 	    end
     end.
 	    
+is_host_key(KeyCb, Public, PeerName, Alg, Data) ->
+    {KeyCb, KeyCb:is_host_key(Public, PeerName, Alg, Data)}.
+
+add_host_key(KeyCb, PeerName, Public, Data) ->
+    {KeyCb, KeyCb:add_host_key(PeerName, Public, Data)}.
+    
 
 %%   Each of the algorithm strings MUST be a comma-separated list of
 %%   algorithm names (see ''Algorithm Naming'' in [SSH-ARCH]).  Each
@@ -1745,11 +1792,11 @@ hash(K, H, Ki, N, HashAlg) ->
     hash(K, H, <<Ki/binary, Kj/binary>>, N-128, HashAlg).
 
 %%%----------------------------------------------------------------
-kex_hash(SSH, Key, SignAlg, HashAlg, Args) ->
-    crypto:hash(HashAlg, kex_plaintext(SSH,Key,SignAlg,Args)).
+kex_hash(SSH, Key, HashAlg, Args) ->
+    crypto:hash(HashAlg, kex_plaintext(SSH,Key,Args)).
 
-kex_plaintext(SSH, Key, SignAlg, Args) ->
-    EncodedKey = public_key:ssh_encode({Key,SignAlg}, ssh2_pubkey),
+kex_plaintext(SSH, Key, Args) ->
+    EncodedKey = public_key:ssh_encode(Key, ssh2_pubkey),
     <<?Estring(SSH#ssh.c_version), ?Estring(SSH#ssh.s_version),
       ?Ebinary(SSH#ssh.c_keyinit), ?Ebinary(SSH#ssh.s_keyinit),
       ?Ebinary(EncodedKey),
diff --git a/lib/ssh/test/Makefile b/lib/ssh/test/Makefile
index 32e76cf077..5ea048a352 100644
--- a/lib/ssh/test/Makefile
+++ b/lib/ssh/test/Makefile
@@ -39,6 +39,7 @@ MODULES= \
 	ssh_bench_SUITE \
 	ssh_connection_SUITE \
 	ssh_protocol_SUITE \
+	ssh_property_test_SUITE \
 	ssh_sftp_SUITE \
 	ssh_sftpd_SUITE \
 	ssh_sftpd_erlclient_SUITE \
diff --git a/lib/ssh/test/ssh_basic_SUITE.erl b/lib/ssh/test/ssh_basic_SUITE.erl
index 62e2a585e4..db2ae241e5 100644
--- a/lib/ssh/test/ssh_basic_SUITE.erl
+++ b/lib/ssh/test/ssh_basic_SUITE.erl
@@ -99,6 +99,9 @@ all() ->
      {group, ecdsa_sha2_nistp521_key},
      {group, dsa_pass_key},
      {group, rsa_pass_key},
+     {group, ecdsa_sha2_nistp256_pass_key},
+     {group, ecdsa_sha2_nistp384_pass_key},
+     {group, ecdsa_sha2_nistp521_pass_key},
      {group, host_user_key_differs},
      {group, key_cb},
      {group, internal_error},
@@ -124,6 +127,9 @@ groups() ->
 				  exec_key_differs_fail]},
      {dsa_pass_key, [], [pass_phrase]},
      {rsa_pass_key, [], [pass_phrase]},
+     {ecdsa_sha2_nistp256_pass_key, [], [pass_phrase]},
+     {ecdsa_sha2_nistp384_pass_key, [], [pass_phrase]},
+     {ecdsa_sha2_nistp521_pass_key, [], [pass_phrase]},
      {key_cb, [], [key_callback, key_callback_options]},
      {internal_error, [], [internal_error]},
      {login_bad_pwd_no_retry, [], [login_bad_pwd_no_retry1,
@@ -229,6 +235,45 @@ init_per_group(dsa_pass_key, Config) ->
 	false ->
 	    {skip, unsupported_pub_key}
     end;
+init_per_group(ecdsa_sha2_nistp256_pass_key, Config) ->
+    DataDir = proplists:get_value(data_dir, Config),
+    PrivDir = proplists:get_value(priv_dir, Config),
+    case lists:member('ecdsa-sha2-nistp256',
+		      ssh_transport:default_algorithms(public_key))
+        andalso
+        ssh_test_lib:setup_ecdsa_pass_phrase("256", DataDir, PrivDir, "Password")
+    of
+	true ->
+	    [{pass_phrase, {ecdsa_pass_phrase, "Password"}}| Config];
+	false ->
+	    {skip, unsupported_pub_key}
+    end;
+init_per_group(ecdsa_sha2_nistp384_pass_key, Config) ->
+    DataDir = proplists:get_value(data_dir, Config),
+    PrivDir = proplists:get_value(priv_dir, Config),
+    case lists:member('ecdsa-sha2-nistp384',
+		      ssh_transport:default_algorithms(public_key))
+        andalso
+        ssh_test_lib:setup_ecdsa_pass_phrase("384", DataDir, PrivDir, "Password")
+    of
+	true ->
+	    [{pass_phrase, {ecdsa_pass_phrase, "Password"}}| Config];
+	false ->
+	    {skip, unsupported_pub_key}
+    end;
+init_per_group(ecdsa_sha2_nistp521_pass_key, Config) ->
+    DataDir = proplists:get_value(data_dir, Config),
+    PrivDir = proplists:get_value(priv_dir, Config),
+    case lists:member('ecdsa-sha2-nistp521',
+		      ssh_transport:default_algorithms(public_key))
+        andalso
+        ssh_test_lib:setup_ecdsa_pass_phrase("521", DataDir, PrivDir, "Password")
+    of
+	true ->
+	    [{pass_phrase, {ecdsa_pass_phrase, "Password"}}| Config];
+	false ->
+	    {skip, unsupported_pub_key}
+    end;
 init_per_group(host_user_key_differs, Config) ->
     Data = proplists:get_value(data_dir, Config),
     Sys = filename:join(proplists:get_value(priv_dir, Config), system_rsa),
@@ -241,7 +286,7 @@ init_per_group(host_user_key_differs, Config) ->
     file:copy(filename:join(Data, "ssh_host_rsa_key.pub"), filename:join(Sys, "ssh_host_rsa_key.pub")),
     file:copy(filename:join(Data, "id_ecdsa256"),         filename:join(Usr, "id_ecdsa")),
     file:copy(filename:join(Data, "id_ecdsa256.pub"),     filename:join(Usr, "id_ecdsa.pub")),
-    ssh_test_lib:setup_ecdsa_auth_keys("256", Usr, SysUsr),
+    ssh_test_lib:setup_ecdsa_auth_keys("256", Data, SysUsr),
     ssh_test_lib:setup_rsa_known_host(Sys, Usr),
     Config;
 init_per_group(key_cb, Config) ->
@@ -306,6 +351,7 @@ init_per_group(dir_options, Config) ->
 init_per_group(_, Config) ->
     Config.
 
+
 end_per_group(dsa_key, Config) ->
     PrivDir = proplists:get_value(priv_dir, Config),
     ssh_test_lib:clean_dsa(PrivDir),
diff --git a/lib/ssh/test/ssh_bench_SUITE.erl b/lib/ssh/test/ssh_bench_SUITE.erl
index 2c0cd8fc8e..b6c6147646 100644
--- a/lib/ssh/test/ssh_bench_SUITE.erl
+++ b/lib/ssh/test/ssh_bench_SUITE.erl
@@ -57,12 +57,19 @@ init_per_suite(Config) ->
         ok ->
             DataSize = 1000000,
             SystemDir = proplists:get_value(data_dir, Config),
-            Algs = insert_none(ssh:default_algorithms()),
+            Algs = ssh:default_algorithms(),
             {_ServerPid, _Host, Port} =
                 ssh_test_lib:daemon([{system_dir, SystemDir},
                                      {user_passwords, [{?UID,?PWD}]},
                                      {failfun, fun ssh_test_lib:failfun/2},
                                      {preferred_algorithms, Algs},
+                                     {modify_algorithms,[{prepend,[{cipher,[none]},
+                                                                   {mac,[none]}
+                                                                  ]},
+                                                         {rm, [{cipher,['[email protected]',
+                                                                        '[email protected]']}
+                                                              ]}
+                                                        ]},
                                      {max_random_length_padding, 0},
                                      {subsystems, [{"/dev/null", {ssh_bench_dev_null,[DataSize]}}]}
                                     ]),
@@ -175,11 +182,34 @@ gen_data(DataSz) ->
 %%              {suite, ?MODULE},
 %%              {name, mk_name(["Transfer 1M bytes ",Cipher,"/",Mac," [µs]"])}]);
 connect_measure(Port, Cipher, Mac, Data, Options) ->
+    AES_GCM = {cipher,['[email protected]',
+                       '[email protected]']},
+
+    AlgOpt = case {Cipher,Mac} of
+                 {none,none} ->
+                     [{modify_algorithms,[{prepend, [{cipher,[Cipher]},
+                                                     {mac,[Mac]}]},
+                                          {rm,[AES_GCM]}
+                                         ]}];
+                 {none,_} ->
+                     [{modify_algorithms,[{prepend, [{cipher,[Cipher]}]},
+                                          {rm,[AES_GCM]}
+                                         ]},
+                      {preferred_algorithms, [{mac,[Mac]}]}];
+                 {_,none} ->
+                     [{modify_algorithms,[{prepend, [{mac,[Mac]}]},
+                                          {rm,[AES_GCM]}
+                                         ]},
+                      {preferred_algorithms, [{cipher,[Cipher]}]}];
+                 _ ->
+                     [{preferred_algorithms, [{cipher,[Cipher]},
+                                              {mac,[Mac]}]},
+                      {modify_algorithms, [{rm,[AES_GCM]}]}
+                     ]
+             end,
     Times =
         [begin
-             {ok,C} = ssh:connect("localhost", Port, [{preferred_algorithms, [{cipher,[Cipher]},
-                                                                              {mac,[Mac]}]}
-                                                      |Options]),
+             {ok,C} = ssh:connect("localhost", Port, AlgOpt ++ Options),
              {ok,Ch} = ssh_connection:session_channel(C, 10000),
              success = ssh_connection:subsystem(C, Ch, "/dev/null", 10000),
              {Time,ok} = timer:tc(?MODULE, send_wait_acc, [C, Ch, Data]),
@@ -205,16 +235,6 @@ send_wait_acc(C, Ch, Data) ->
 %%% 
 
 %%%----------------------------------------------------------------
-insert_none(L) ->
-    lists:foldl(fun insert_none/2, [], L).
-
-insert_none({T,L}, Acc) when T==cipher ;
-                             T==mac    ->
-    [{T, [{T1,L1++[none]} || {T1,L1} <- L]} | Acc];
-insert_none(_, Acc) ->
-    Acc.
-
-%%%----------------------------------------------------------------
 mk_name(Name) -> [char(C) || C <- lists:concat(Name)].
 
 char($-) -> $_;
diff --git a/lib/ssh/test/ssh_protocol_SUITE.erl b/lib/ssh/test/ssh_protocol_SUITE.erl
index 0837fe7eaf..74f802cf57 100644
--- a/lib/ssh/test/ssh_protocol_SUITE.erl
+++ b/lib/ssh/test/ssh_protocol_SUITE.erl
@@ -34,8 +34,8 @@
 -define(NEWLINE, <<"\r\n">>).
 -define(REKEY_DATA_TMO, 65000).
 
-%%-define(DEFAULT_KEX, 'diffie-hellman-group1-sha1').
 -define(DEFAULT_KEX, 'diffie-hellman-group14-sha256').
+-define(EXTRA_KEX, 'diffie-hellman-group1-sha1').
 
 -define(CIPHERS, ['aes256-ctr','aes192-ctr','aes128-ctr','aes128-cbc','3des-cbc']).
 -define(DEFAULT_CIPHERS, [{client2server,?CIPHERS}, {server2client,?CIPHERS}]).
@@ -60,7 +60,8 @@ all() ->
      {group,authentication},
      {group,packet_size_error},
      {group,field_size_error},
-     {group,ext_info}
+     {group,ext_info},
+     {group,preferred_algorithms}
     ].
 
 groups() ->
@@ -96,7 +97,13 @@ groups() ->
                      no_ext_info_s2,
                      ext_info_s,
                      ext_info_c
-                    ]}
+                    ]},
+     {preferred_algorithms, [], [preferred_algorithms,
+                                 modify_append,
+                                 modify_prepend,
+                                 modify_rm,
+                                 modify_combo
+                                ]}
     ].
 
 
@@ -701,8 +708,6 @@ ext_info_s(Config) ->
 %%%--------------------------------------------------------------------
 %%% The client sends the extension
 ext_info_c(Config) ->    
-    {User,_Pwd} = server_user_password(Config),
-
     %% Create a listening socket as server socket:
     {ok,InitialState} = ssh_trpt_test_lib:exec(listen),
     HostPort = ssh_trpt_test_lib:server_host_port(InitialState),
@@ -757,10 +762,135 @@ ext_info_c(Config) ->
         {result, Pid, Error} -> ct:fail("Error: ~p",[Error])
     end.
 
+
+%%%----------------------------------------------------------------
+%%%
+preferred_algorithms(Config) ->
+    Ciphers = filter_supported(cipher, ?CIPHERS),
+    {error,{eoptions,{{preferred_algorithms,{kex,[some_unknown_algo]}},
+                      "Unsupported value(s) found"}}} =
+        chk_pref_algs(Config,
+                      [?DEFAULT_KEX],
+                      Ciphers,
+                      [{preferred_algorithms, [{kex,[some_unknown_algo,?DEFAULT_KEX]},
+                                               {cipher,Ciphers}
+                                              ]}
+                      ]).
+
+%%%----------------------------------------------------------------
+%%%
+modify_append(Config) ->
+    Ciphers = filter_supported(cipher, ?CIPHERS),
+    {ok,_} =
+        chk_pref_algs(Config,
+                      [?DEFAULT_KEX, ?EXTRA_KEX],
+                      Ciphers,
+                      [{preferred_algorithms, [{kex,[?DEFAULT_KEX]},
+                                               {cipher,Ciphers}
+                                              ]},
+                       {modify_algorithms, [{append,[{kex,[some_unknown_algo,?EXTRA_KEX]}]}]}
+                      ]).
+
+%%%----------------------------------------------------------------
+%%%
+modify_prepend(Config) ->
+    Ciphers = filter_supported(cipher, ?CIPHERS),
+    {ok,_} =
+        chk_pref_algs(Config,
+                      [?EXTRA_KEX, ?DEFAULT_KEX],
+                      Ciphers,
+                      [{preferred_algorithms, [{kex,[?DEFAULT_KEX]},
+                                               {cipher,Ciphers}
+                                              ]},
+                       {modify_algorithms, [{prepend,[{kex,[some_unknown_algo,?EXTRA_KEX]}]}]}
+                      ]).
+
+%%%----------------------------------------------------------------
+%%%
+modify_rm(Config) ->
+    Ciphers = filter_supported(cipher, ?CIPHERS),
+    {ok,_} =
+        chk_pref_algs(Config,
+                      [?DEFAULT_KEX],
+                      tl(Ciphers),
+                      [{preferred_algorithms, [{kex,[?DEFAULT_KEX,?EXTRA_KEX]},
+                                               {cipher,Ciphers}
+                                              ]},
+                       {modify_algorithms, [{rm,[{kex,[some_unknown_algo,?EXTRA_KEX]},
+                                                 {cipher,[hd(Ciphers)]}
+                                                ]}
+                                           ]}
+                      ]).
+
+
+%%%----------------------------------------------------------------
+%%%
+modify_combo(Config) ->
+    Ciphers = filter_supported(cipher, ?CIPHERS),
+    LastC = lists:last(Ciphers),
+    {ok,_} =
+        chk_pref_algs(Config,
+                      [?DEFAULT_KEX],
+                      [LastC] ++ (tl(Ciphers)--[LastC]) ++ [hd(Ciphers)],
+                      [{preferred_algorithms, [{kex,[?DEFAULT_KEX,?EXTRA_KEX]},
+                                               {cipher,Ciphers}
+                                              ]},
+                       {modify_algorithms, [{rm,[{kex,[some_unknown_algo,?EXTRA_KEX]}
+                                                ]},
+                                            {prepend,[{cipher,[{server2client,[LastC]}]}
+                                                     ]},
+                                            {append,[{cipher,[a,hd(Ciphers),b]}
+                                                    ]}
+                                           ]}
+                      ]).
+
 %%%================================================================
 %%%==== Internal functions ========================================
 %%%================================================================
 
+chk_pref_algs(Config,
+              ExpectedKex,
+              ExpectedCiphers,
+              ServerPrefOpts) ->
+    %% Start the dameon
+    case ssh_test_lib:daemon(
+                      [{send_ext_info,false},
+                       {recv_ext_info,false},
+                       {system_dir, system_dir(Config)}
+                       | ServerPrefOpts])
+    of
+        {_,Host,Port} ->
+            %% Check the Kex part
+            ssh_trpt_test_lib:exec(
+              [{set_options, [print_ops, {print_messages,detail}]},
+               {connect, Host, Port,
+                [{silently_accept_hosts, true},
+                 {user_dir, user_dir(Config)},
+                 {user_interaction, false}
+                ]},
+               {send, hello},
+               receive_hello,
+               {match,
+                #ssh_msg_kexinit{
+                   kex_algorithms = to_lists(ExpectedKex),
+                   encryption_algorithms_server_to_client = to_lists(ExpectedCiphers),
+                   _   = '_'},
+                receive_msg}
+              ]);
+        Error ->
+            Error
+    end.
+
+
+filter_supported(K, Algs) -> Algs -- (Algs--supported(K)).
+
+supported(_K) -> proplists:get_value(
+                   server2client,
+                   ssh_transport:supported_algorithms(cipher)).
+
+to_lists(L) -> lists:map(fun erlang:atom_to_list/1, L).
+    
+
 %%%---- init_suite and end_suite ---------------------------------------	
 start_apps(Config) ->
     catch ssh:stop(),
diff --git a/lib/ssh/test/ssh_test_lib.erl b/lib/ssh/test/ssh_test_lib.erl
index 7b273fecef..83819b97a5 100644
--- a/lib/ssh/test/ssh_test_lib.erl
+++ b/lib/ssh/test/ssh_test_lib.erl
@@ -404,7 +404,7 @@ setup_ecdsa(Size, DataDir, UserDir) ->
     file:copy(filename:join(DataDir, "ssh_host_ecdsa_key"++Size++".pub"), filename:join(System, "ssh_host_ecdsa_key.pub")),
 ct:log("DataDir ~p:~n ~p~n~nSystDir ~p:~n ~p~n~nUserDir ~p:~n ~p",[DataDir, file:list_dir(DataDir), System, file:list_dir(System), UserDir, file:list_dir(UserDir)]),
     setup_ecdsa_known_host(Size, System, UserDir),
-    setup_ecdsa_auth_keys(Size, UserDir, UserDir).
+    setup_ecdsa_auth_keys(Size, DataDir, UserDir).
 
 clean_dsa(UserDir) ->
     del_dirs(filename:join(UserDir, "system")),
@@ -438,6 +438,29 @@ setup_rsa_pass_pharse(DataDir, UserDir, Phrase) ->
     setup_rsa_known_host(DataDir, UserDir),
     setup_rsa_auth_keys(DataDir, UserDir).
 
+setup_ecdsa_pass_phrase(Size, DataDir, UserDir, Phrase) ->
+    try
+        {ok, KeyBin} = 
+            case file:read_file(F=filename:join(DataDir, "id_ecdsa"++Size)) of
+                {error,E} ->
+                    ct:log("Failed (~p) to read ~p~nFiles: ~p", [E,F,file:list_dir(DataDir)]),
+                    file:read_file(filename:join(DataDir, "id_ecdsa"));
+                Other ->
+                    Other
+            end,
+        setup_pass_pharse(KeyBin, filename:join(UserDir, "id_ecdsa"), Phrase),
+        System = filename:join(UserDir, "system"),
+        file:make_dir(System),
+        file:copy(filename:join(DataDir, "ssh_host_ecdsa_key"++Size), filename:join(System, "ssh_host_ecdsa_key")),
+        file:copy(filename:join(DataDir, "ssh_host_ecdsa_key"++Size++".pub"), filename:join(System, "ssh_host_ecdsa_key.pub")),
+        setup_ecdsa_known_host(Size, System, UserDir),
+        setup_ecdsa_auth_keys(Size, DataDir, UserDir)
+    of 
+        _ -> true
+    catch
+        _:_ -> false
+    end.
+
 setup_pass_pharse(KeyBin, OutFile, Phrase) ->
     [{KeyType, _,_} = Entry0] = public_key:pem_decode(KeyBin),
     Key =  public_key:pem_entry_decode(Entry0),
@@ -489,8 +512,15 @@ setup_rsa_auth_keys(Dir, UserDir) ->
     PKey = #'RSAPublicKey'{publicExponent = E, modulus = N},
     setup_auth_keys([{ PKey, [{comment, "Test"}]}], UserDir).
 
-setup_ecdsa_auth_keys(_Size, Dir, UserDir) ->
-    {ok, Pem} = file:read_file(filename:join(Dir, "id_ecdsa")),
+setup_ecdsa_auth_keys(Size, Dir, UserDir) ->
+    {ok, Pem} =
+        case file:read_file(F=filename:join(Dir, "id_ecdsa"++Size)) of
+            {error,E} ->
+                ct:log("Failed (~p) to read ~p~nFiles: ~p", [E,F,file:list_dir(Dir)]),
+                file:read_file(filename:join(Dir, "id_ecdsa"));
+            Other ->
+                Other
+        end,
     ECDSA = public_key:pem_entry_decode(hd(public_key:pem_decode(Pem))),
     #'ECPrivateKey'{publicKey = Q,
 		    parameters = Param = {namedCurve,_Id0}} = ECDSA,
@@ -572,7 +602,6 @@ check_ssh_client_support2(P) ->
 	{P, {exit_status, E}} ->
 	    E
     after 5000 ->
-
 	    ct:log("Openssh command timed out ~n"),
 	    -1
     end.
diff --git a/lib/ssh/test/ssh_to_openssh_SUITE.erl b/lib/ssh/test/ssh_to_openssh_SUITE.erl
index 4d6aa93d4e..75d5b5e296 100644
--- a/lib/ssh/test/ssh_to_openssh_SUITE.erl
+++ b/lib/ssh/test/ssh_to_openssh_SUITE.erl
@@ -332,7 +332,7 @@ erlang_client_openssh_server_publickey_dsa(Config) ->
     erlang_client_openssh_server_publickey_X(Config, 'ssh-dss').
 
 
-erlang_client_openssh_server_publickey_X(Config, Alg) ->
+erlang_client_openssh_server_publickey_X(_Config, Alg) ->
     ConnectionRef =
         ssh_test_lib:connect(?SSH_DEFAULT_PORT,
                              [{pref_public_key_algs, [Alg]},
diff --git a/lib/ssh/vsn.mk b/lib/ssh/vsn.mk
index 006228f8e7..5154658e8a 100644
--- a/lib/ssh/vsn.mk
+++ b/lib/ssh/vsn.mk
@@ -1,5 +1,5 @@
 #-*-makefile-*-   ; force emacs to enter makefile-mode
 
-SSH_VSN = 4.5.1
+SSH_VSN = 4.6.1
 
 APP_VSN    = "ssh-$(SSH_VSN)"
diff --git a/lib/ssl/doc/src/Makefile b/lib/ssl/doc/src/Makefile
index 669062779e..d54ef47461 100644
--- a/lib/ssl/doc/src/Makefile
+++ b/lib/ssl/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1999-2015. All Rights Reserved.
+# Copyright Ericsson AB 1999-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -38,10 +38,10 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN)
 # Target Specs
 # ----------------------------------------------------
 XML_APPLICATION_FILES = refman.xml
-XML_REF3_FILES = ssl.xml ssl_crl_cache.xml ssl_crl_cache_api.xml ssl_session_cache_api.xml 
+XML_REF3_FILES = ssl.xml ssl_crl_cache.xml ssl_crl_cache_api.xml ssl_session_cache_api.xml
 XML_REF6_FILES = ssl_app.xml
 
-XML_PART_FILES = release_notes.xml usersguide.xml
+XML_PART_FILES = usersguide.xml
 XML_CHAPTER_FILES = \
 	ssl_protocol.xml \
 	using_ssl.xml \
@@ -52,11 +52,11 @@ XML_CHAPTER_FILES = \
 BOOK_FILES = book.xml
 
 XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) $(XML_REF6_FILES) \
-            $(XML_PART_FILES) $(XML_CHAPTER_FILES) 
+            $(XML_PART_FILES) $(XML_CHAPTER_FILES)
 
-GIF_FILES = warning.gif
+GIF_FILES =
 
-PS_FILES = 
+PS_FILES =
 
 XML_FLAGS += -defs cite cite.defs -booksty otpA4
 
@@ -81,10 +81,10 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -110,11 +110,11 @@ man: $(MAN3_FILES) $(MAN6_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/ssl/doc/src/fascicules.xml b/lib/ssl/doc/src/fascicules.xml
deleted file mode 100644
index 7a60e8dd1f..0000000000
--- a/lib/ssl/doc/src/fascicules.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="usersguide" href="usersguide_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="refman" href="refman_frame.html" entry="yes">
-    Reference  Manual
-  </fascicule>
-  <fascicule file="release_notes" href="release_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
-
diff --git a/lib/ssl/doc/src/note.gif b/lib/ssl/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/ssl/doc/src/note.gif
+++ /dev/null
diff --git a/lib/ssl/doc/src/notes.xml b/lib/ssl/doc/src/notes.xml
index 5a39cac9bc..4c6a204e63 100644
--- a/lib/ssl/doc/src/notes.xml
+++ b/lib/ssl/doc/src/notes.xml
@@ -28,6 +28,40 @@
   <p>This document describes the changes made to the SSL application.</p>
 
 
+<section><title>SSL 8.2.1</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Max session table works correctly again</p>
+          <p>
+	    Own Id: OTP-14556</p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    Customize alert handling for DTLS over UDP to mitigate
+	    DoS attacks</p>
+          <p>
+	    Own Id: OTP-14078</p>
+        </item>
+        <item>
+          <p>
+	    Improved error propagation and reports</p>
+          <p>
+	    Own Id: OTP-14236</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>SSL 8.2</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/ssl/doc/src/release_notes.xml b/lib/ssl/doc/src/release_notes.xml
deleted file mode 100644
index 2e263c69a7..0000000000
--- a/lib/ssl/doc/src/release_notes.xml
+++ /dev/null
@@ -1,50 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>1999</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>SSL Release Notes</title>
-    <prepared>Peter H&ouml;gfeldt</prepared>
-    <docno></docno>
-    <date>2003-05-26</date>
-    <rev>A</rev>
-    <file>release_notes.sgml</file>
-  </header>
-  <description>
-    <p>The SSL application provides secure communication over sockets.
-      </p>
-    <p>This product includes software developed by the OpenSSL Project for
-      use in the OpenSSL Toolkit (http://www.openssl.org/).
-      </p>
-    <p>This product includes cryptographic software written by Eric Young
-      ([email protected]).  
-      </p>
-    <p>This product includes software written by Tim Hudson
-      ([email protected]).
-      </p>
-    <p>For full OpenSSL and SSLeay license texts, see <seealso marker="licenses#licenses">Licenses</seealso>.
-      </p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
-
diff --git a/lib/ssl/doc/src/ssl.xml b/lib/ssl/doc/src/ssl.xml
index ca2dcbb761..e80fd59a7f 100644
--- a/lib/ssl/doc/src/ssl.xml
+++ b/lib/ssl/doc/src/ssl.xml
@@ -589,22 +589,19 @@ fun(srp, Username :: string(), UserState :: term()) ->
 
       <tag><c>{server_name_indication, HostName :: hostname()}</c></tag>
       <item><p>Specify the hostname to be used in TLS Server Name Indication extension.
-      Is usefull when upgrading a TCP socket to a TLS socket or if the hostname can not be 
-      derived from the Host argument to <seealso marker="ssl#connect-3">ssl:connect/3</seealso>.
-      Will also cause the client to preform host name verification of the peer certificate
-      <seealso marker="public_key:public_key#pkix_verify_hostname-2">public_key:pkix_verify_hostname(PeerCert, [{dns_id, HostName}])</seealso>
-      </p> during the x509-path validation. If the check fails the error {bad_cert, hostname_check_failiure} will be
-      propagated to the path validation fun <seealso marker="#verify_fun">verify_fun</seealso>
-      </item>
-
-	<tag><c>{server_name_indication, disable}</c></tag>
-      <item>
-        <p>When starting a TLS connection without upgrade, the Server Name
-        Indication extension is sent if possible that is can be derived from the Host argument 
-        to <seealso marker="ssl#connect-3">ssl:connect/3</seealso>.  
-	This option can be used to disable that behavior.</p>
-	<note><p> Note that this also disables the default host name verification check of the peer certificate.</p></note>
+      If not specified it will default to the <c>Host</c> argument of <seealso marker="#connect-3">connect/[3,4]</seealso>
+      unless it is of type inet:ipaddress().</p>
+      <p>
+	The <c>HostName</c> will also be used in the hostname verification of the peer certificate using
+	<seealso marker="public_key:public_key#pkix_verify_hostname-2">public_key:pkix_verify_hostname/2</seealso>.
+      </p>
       </item>
+      <tag><c>{server_name_indication, disable}</c></tag>
+	<item>
+          <p> Prevents the Server Name Indication extension from being sent and
+	  disables the hostname verification check
+	  <seealso marker="public_key:public_key#pkix_verify_hostname-2">public_key:pkix_verify_hostname/2</seealso> </p>
+	</item>
       <tag><c>{fallback, boolean()}</c></tag>
       <item>
 	<p> Send special cipher suite TLS_FALLBACK_SCSV to avoid undesired TLS version downgrade.
@@ -881,6 +878,12 @@ fun(srp, Username :: string(), UserState :: term()) ->
       <desc><p>Upgrades a <c>gen_tcp</c>, or equivalent,
 	  connected socket to an SSL socket, that is, performs the
 	  client-side ssl handshake.</p>
+	  
+	  <note><p>If the option <c>verify</c> is set to <c>verify_peer</c>
+	  the option <c>server_name_indication</c> shall also be specified,
+	  if it is not no Server Name Indication extension will be sent,
+	  and <seealso marker="public_key:public_key#pkix_verify_hostname-2">public_key:pkix_verify_hostname/2</seealso>
+	  will be called with the IP-address of the connection as <c>ReferenceID</c>, which is proably not what you want.</p></note>
     </desc>
     </func>
 
@@ -897,7 +900,24 @@ fun(srp, Username :: string(), UserState :: term()) ->
 	  <v>SslSocket = sslsocket()</v>
 	  <v>Reason = term()</v>
       </type>
-      <desc><p>Opens an SSL connection to <c>Host</c>, <c>Port</c>.</p></desc>
+      <desc><p>Opens an SSL connection to <c>Host</c>, <c>Port</c>.</p>
+      
+      <p> When the option <c>verify</c> is set to <c>verify_peer</c> the check 
+      <seealso marker="public_key:public_key#pkix_verify_hostname-2">public_key:pkix_verify_hostname/2</seealso> 
+      will be performed in addition to the usual x509-path validation checks. If the check fails the error {bad_cert, hostname_check_failed} will
+      be propagated to the path validation fun <seealso marker="#verify_fun">verify_fun</seealso>, where it is possible to do customized
+      checks by using the full possibilitis of the <seealso marker="public_key:public_key#pkix_verify_hostname-2">public_key:pkix_verify_hostname/2</seealso> API.
+      
+      When the option <c>server_name_indication</c> is provided, its value (the DNS name) will be used as <c>ReferenceID</c>
+      to <seealso marker="public_key:public_key#pkix_verify_hostname-2">public_key:pkix_verify_hostname/2</seealso>.
+      When no <c>server_name_indication</c> option is given, the <c>Host</c> argument will be used as
+      Server Name Indication extension. The <c>Host</c> argument will also be used for the
+      <seealso marker="public_key:public_key#pkix_verify_hostname-2">public_key:pkix_verify_hostname/2</seealso> check and if the <c>Host</c>
+      argument is an <c>inet:ip_address()</c> the <c>ReferenceID</c> used for the check will be <c>{ip, Host}</c> otherwise
+      <c>dns_id</c> will be assumed with a fallback to <c>ip</c> if that fails. </p>
+      <note><p>According to good practices certificates should not use IP-addresses as "server names". It would
+      be very surprising if this happen outside a closed network. </p></note> 
+      </desc>
     </func>
 
     <func>
diff --git a/lib/ssl/doc/src/warning.gif b/lib/ssl/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/ssl/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/ssl/src/Makefile b/lib/ssl/src/Makefile
index 2e7df9792e..8eba5cf347 100644
--- a/lib/ssl/src/Makefile
+++ b/lib/ssl/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1999-2016. All Rights Reserved.
+# Copyright Ericsson AB 1999-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -87,8 +87,7 @@ MODULES= \
 	ssl_v2 \
 	ssl_v3 \
 	tls_v1 \
-	dtls_v1 \
-	ssl_tls_dist_proxy
+	dtls_v1
 
 INTERNAL_HRL_FILES = \
 	ssl_alert.hrl ssl_cipher.hrl \
diff --git a/lib/ssl/src/dtls_connection.erl b/lib/ssl/src/dtls_connection.erl
index ff3e69bae5..387d632ef8 100644
--- a/lib/ssl/src/dtls_connection.erl
+++ b/lib/ssl/src/dtls_connection.erl
@@ -45,7 +45,7 @@
 -export([renegotiate/2, 
 	 reinit_handshake_data/1, 
 	 send_handshake/2, queue_handshake/2, queue_change_cipher/2,
-	 select_sni_extension/1]).
+	 select_sni_extension/1, empty_connection_state/2]).
 
 %% Alert and close handling
 -export([encode_alert/3,send_alert/2, close/5, protocol_name/0]).
@@ -79,9 +79,9 @@ start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = false},_, Tracker}
 	    Error
     end.
 
-send_handshake(Handshake, #state{connection_states = ConnectionStates} = States) ->
+send_handshake(Handshake, #state{connection_states = ConnectionStates} = State) ->
     #{epoch := Epoch} = ssl_record:current_connection_state(ConnectionStates, write),
-    send_handshake_flight(queue_handshake(Handshake, States), Epoch).
+    send_handshake_flight(queue_handshake(Handshake, State), Epoch).
 
 queue_handshake(Handshake0, #state{tls_handshake_history = Hist0, 
 				   negotiated_version = Version,
@@ -114,8 +114,8 @@ send_handshake_flight(#state{socket = Socket,
     %% TODO remove hardcoded Max size
     {Encoded, ConnectionStates} =
 	encode_handshake_flight(lists:reverse(Flight), Version, 1400, Epoch, ConnectionStates0),
-    send(Transport, Socket, Encoded),
-    {State0#state{connection_states = ConnectionStates}, []};
+    send(Transport, Socket, Encoded), 
+   {State0#state{connection_states = ConnectionStates}, []};
 
 send_handshake_flight(#state{socket = Socket,
 			     transport_cb = Transport,
@@ -188,9 +188,10 @@ reinit_handshake_data(#state{protocol_buffers = Buffers} = State) ->
 		public_key_info = undefined,
 		tls_handshake_history = ssl_handshake:init_handshake_history(),
                 flight_state = {retransmit, ?INITIAL_RETRANSMIT_TIMEOUT},
-		protocol_buffers =
+		flight_buffer = new_flight(),
+                protocol_buffers =
 		    Buffers#protocol_buffers{
-		      dtls_handshake_next_seq = 0,
+                      dtls_handshake_next_seq = 0,
 		      dtls_handshake_next_fragments = [],
 		      dtls_handshake_later_fragments = []
 		     }}.
@@ -199,6 +200,9 @@ select_sni_extension(#client_hello{extensions = HelloExtensions}) ->
     HelloExtensions#hello_extensions.sni;
 select_sni_extension(_) ->
     undefined.
+empty_connection_state(ConnectionEnd, BeastMitigation) ->
+    Empty = ssl_record:empty_connection_state(ConnectionEnd, BeastMitigation),
+    dtls_record:empty_connection_state(Empty).
 
 socket(Pid,  Transport, Socket, Connection, _) ->
     dtls_socket:socket(Pid, Transport, Socket, Connection).
@@ -273,28 +277,28 @@ init({call, From}, {start, Timeout},
     {Record, State} = next_record(State3),
     next_event(hello, Record, State, Actions);
 init({call, _} = Type, Event, #state{role = server, transport_cb = gen_udp} = State) ->
-    Result = ssl_connection:init(Type, Event, 
-                                 State#state{flight_state = {retransmit, ?INITIAL_RETRANSMIT_TIMEOUT},
-                                             protocol_specific = #{current_cookie_secret => dtls_v1:cookie_secret(), 
-                                                                   previous_cookie_secret => <<>>,
-                                                                   ignored_alerts => 0,
-                                                                   max_ignored_alerts => 10}},
-                                 ?MODULE),
+    Result = ssl_connection:?FUNCTION_NAME(Type, Event, 
+                                           State#state{flight_state = {retransmit, ?INITIAL_RETRANSMIT_TIMEOUT},
+                                                       protocol_specific = #{current_cookie_secret => dtls_v1:cookie_secret(), 
+                                                                             previous_cookie_secret => <<>>,
+                                                                             ignored_alerts => 0,
+                                                                             max_ignored_alerts => 10}},
+                                           ?MODULE),
     erlang:send_after(dtls_v1:cookie_timeout(), self(), new_cookie_secret),
     Result;
-                                     
+
 init({call, _} = Type, Event, #state{role = server} = State) ->
     %% I.E. DTLS over sctp
-    ssl_connection:init(Type, Event, State#state{flight_state = reliable}, ?MODULE);
+    ssl_connection:?FUNCTION_NAME(Type, Event, State#state{flight_state = reliable}, ?MODULE);
 init(Type, Event, State) ->
-    ssl_connection:init(Type, Event, State, ?MODULE).
+    ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE).
  
 error(enter, _, State) ->
     {keep_state, State};     
 error({call, From}, {start, _Timeout}, {Error, State}) ->
     {stop_and_reply, normal, {reply, From, {error, Error}}, State};
 error({call, From}, Msg, State) ->
-    handle_call(Msg, From, error, State);
+    handle_call(Msg, From, ?FUNCTION_NAME, State);
 error(_, _, _) ->
      {keep_state_and_data, [postpone]}.
 
@@ -326,7 +330,7 @@ hello(internal, #client_hello{cookie = <<>>,
     State1 = prepare_flight(State0#state{negotiated_version = Version}),
     {State2, Actions} = send_handshake(VerifyRequest, State1),
     {Record, State} = next_record(State2),
-    next_event(hello, Record, State#state{tls_handshake_history = ssl_handshake:init_handshake_history()}, Actions);
+    next_event(?FUNCTION_NAME, Record, State#state{tls_handshake_history = ssl_handshake:init_handshake_history()}, Actions);
 hello(internal, #client_hello{cookie = Cookie} = Hello, #state{role = server,
 							       transport_cb = Transport,
 							       socket = Socket,
@@ -355,19 +359,20 @@ hello(internal, #hello_verify_request{cookie = Cookie}, #state{role = client,
 							       session_cache = Cache,
 							       session_cache_cb = CacheCb
 							      } = State0) ->
-    State1 = prepare_flight(State0#state{tls_handshake_history = ssl_handshake:init_handshake_history()}),
+  
     Hello = dtls_handshake:client_hello(Host, Port, Cookie, ConnectionStates0,
 					SslOpts,
 					Cache, CacheCb, Renegotiation, OwnCert),
     Version = Hello#client_hello.client_version,
-    HelloVersion = dtls_record:lowest_protocol_version(SslOpts#ssl_options.versions),
-    {State2, Actions} = send_handshake(Hello, State1#state{negotiated_version = HelloVersion}), 
+    State1 = prepare_flight(State0#state{tls_handshake_history = ssl_handshake:init_handshake_history()}),
+    
+    {State2, Actions} = send_handshake(Hello, State1), 
     State3 = State2#state{negotiated_version = Version, %% Requested version
 			  session =
 			      Session0#session{session_id = 
 						   Hello#client_hello.session_id}},
     {Record, State} = next_record(State3),
-    next_event(hello, Record, State, Actions);
+    next_event(?FUNCTION_NAME, Record, State, Actions);
 hello(internal, #server_hello{} = Hello,
       #state{connection_states = ConnectionStates0,
 	     negotiated_version = ReqVersion,
@@ -376,92 +381,97 @@ hello(internal, #server_hello{} = Hello,
 	     ssl_options = SslOptions} = State) ->
     case dtls_handshake:hello(Hello, SslOptions, ConnectionStates0, Renegotiation) of
 	#alert{} = Alert ->
-	    handle_own_alert(Alert, ReqVersion, hello, State);
+	    handle_own_alert(Alert, ReqVersion, ?FUNCTION_NAME, State);
 	{Version, NewId, ConnectionStates, ProtoExt, Protocol} ->
 	    ssl_connection:handle_session(Hello, 
 					  Version, NewId, ConnectionStates, ProtoExt, Protocol, State)
     end;
 hello(internal, {handshake, {#client_hello{cookie = <<>>} = Handshake, _}}, State) ->
     %% Initial hello should not be in handshake history
-    {next_state, hello, State, [{next_event, internal, Handshake}]};
+    {next_state, ?FUNCTION_NAME, State, [{next_event, internal, Handshake}]};
 hello(internal, {handshake, {#hello_verify_request{} = Handshake, _}}, State) ->
     %% hello_verify should not be in handshake history
-    {next_state, hello, State, [{next_event, internal, Handshake}]};
+    {next_state, ?FUNCTION_NAME, State, [{next_event, internal, Handshake}]};
 hello(info, Event, State) ->
-    handle_info(Event, hello, State);
+    handle_info(Event, ?FUNCTION_NAME, State);
 hello(state_timeout, Event, State) ->
-    handle_state_timeout(Event, hello, State);
+    handle_state_timeout(Event, ?FUNCTION_NAME, State);
 hello(Type, Event, State) ->
-    ssl_connection:hello(Type, Event, State, ?MODULE).
+    ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE).
 
 abbreviated(enter, _, State0) ->
     {State, Actions} = handle_flight_timer(State0),
     {keep_state, State, Actions}; 
 abbreviated(info, Event, State) ->
-    handle_info(Event, abbreviated, State);
+    handle_info(Event, ?FUNCTION_NAME, State);
 abbreviated(internal = Type, 
 	    #change_cipher_spec{type = <<1>>} = Event, 
 	    #state{connection_states = ConnectionStates0} = State) ->
     ConnectionStates1 = dtls_record:save_current_connection_state(ConnectionStates0, read),
     ConnectionStates = dtls_record:next_epoch(ConnectionStates1, read),
-    ssl_connection:abbreviated(Type, Event, State#state{connection_states = ConnectionStates}, ?MODULE);
+    ssl_connection:?FUNCTION_NAME(Type, Event, State#state{connection_states = ConnectionStates}, ?MODULE);
 abbreviated(internal = Type, #finished{} = Event, #state{connection_states = ConnectionStates} = State) ->
-    ssl_connection:abbreviated(Type, Event, 
-                               prepare_flight(State#state{connection_states = ConnectionStates,
-                                                          flight_state = connection}), ?MODULE);
+    ssl_connection:?FUNCTION_NAME(Type, Event, 
+                                  prepare_flight(State#state{connection_states = ConnectionStates,
+                                                             flight_state = connection}), ?MODULE);
 abbreviated(state_timeout, Event, State) ->
-    handle_state_timeout(Event, abbreviated, State);
+    handle_state_timeout(Event, ?FUNCTION_NAME, State);
 abbreviated(Type, Event, State) ->
-    ssl_connection:abbreviated(Type, Event, State, ?MODULE).
+    ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE).
 
 certify(enter, _, State0) ->
     {State, Actions} = handle_flight_timer(State0),
     {keep_state, State, Actions}; 
 certify(info, Event, State) ->
-    handle_info(Event, certify, State);
+    handle_info(Event, ?FUNCTION_NAME, State);
 certify(internal = Type, #server_hello_done{} = Event, State) ->
     ssl_connection:certify(Type, Event, prepare_flight(State), ?MODULE);
 certify(state_timeout, Event, State) ->
-    handle_state_timeout(Event, certify, State);
+    handle_state_timeout(Event, ?FUNCTION_NAME, State);
 certify(Type, Event, State) ->
-    ssl_connection:certify(Type, Event, State, ?MODULE).
+    ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE).
 
 cipher(enter, _, State0) ->
     {State, Actions} = handle_flight_timer(State0),
     {keep_state, State, Actions}; 
 cipher(info, Event, State) ->
-    handle_info(Event, cipher, State);
+    handle_info(Event, ?FUNCTION_NAME, State);
 cipher(internal = Type, #change_cipher_spec{type = <<1>>} = Event,  
        #state{connection_states = ConnectionStates0} = State) ->
     ConnectionStates1 = dtls_record:save_current_connection_state(ConnectionStates0, read),
     ConnectionStates = dtls_record:next_epoch(ConnectionStates1, read),
-    ssl_connection:cipher(Type, Event, State#state{connection_states = ConnectionStates}, ?MODULE);
+    ssl_connection:?FUNCTION_NAME(Type, Event, State#state{connection_states = ConnectionStates}, ?MODULE);
 cipher(internal = Type, #finished{} = Event, #state{connection_states = ConnectionStates} = State) ->
-    ssl_connection:cipher(Type, Event, 
-			  prepare_flight(State#state{connection_states = ConnectionStates,
-                                                     flight_state = connection}), 
-                          ?MODULE);
+    ssl_connection:?FUNCTION_NAME(Type, Event, 
+                                  prepare_flight(State#state{connection_states = ConnectionStates,
+                                                             flight_state = connection}), 
+                                  ?MODULE);
 cipher(state_timeout, Event, State) ->
-    handle_state_timeout(Event, cipher, State);
+    handle_state_timeout(Event, ?FUNCTION_NAME, State);
 cipher(Type, Event, State) ->
-     ssl_connection:cipher(Type, Event, State, ?MODULE).
+     ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE).
 
 connection(enter, _, State) ->
     {keep_state, State};     
 connection(info, Event, State) ->
-    handle_info(Event, connection, State);
+    handle_info(Event, ?FUNCTION_NAME, State);
 connection(internal, #hello_request{}, #state{host = Host, port = Port,
-				    session = #session{own_certificate = Cert} = Session0,
-				    session_cache = Cache, session_cache_cb = CacheCb,
-				    ssl_options = SslOpts,
-				    connection_states = ConnectionStates0,
-				    renegotiation = {Renegotiation, _}} = State0) ->
+                                              session = #session{own_certificate = Cert} = Session0,
+                                              session_cache = Cache, session_cache_cb = CacheCb,
+                                              ssl_options = SslOpts,
+                                              connection_states = ConnectionStates0,
+                                              renegotiation = {Renegotiation, _}} = State0) ->
+    
     Hello = dtls_handshake:client_hello(Host, Port, ConnectionStates0, SslOpts,
 					Cache, CacheCb, Renegotiation, Cert),
-    {State1, Actions} = send_handshake(Hello, State0),
+    Version = Hello#client_hello.client_version,
+    HelloVersion = dtls_record:hello_version(Version, SslOpts#ssl_options.versions),
+    State1 = prepare_flight(State0),
+    {State2, Actions} = send_handshake(Hello, State1#state{negotiated_version = HelloVersion}),
     {Record, State} =
 	next_record(
-	  State1#state{session = Session0#session{session_id
+	  State2#state{flight_state = {retransmit, ?INITIAL_RETRANSMIT_TIMEOUT},
+                       session = Session0#session{session_id
 						  = Hello#client_hello.session_id}}),
     next_event(hello, Record, State, Actions);
 connection(internal, #client_hello{} = Hello, #state{role = server, allow_renegotiate = true} = State) ->
@@ -471,20 +481,21 @@ connection(internal, #client_hello{} = Hello, #state{role = server, allow_renego
     %% initiated renegotiation we will disallow many client initiated
     %% renegotiations immediately after each other.
     erlang:send_after(?WAIT_TO_ALLOW_RENEGOTIATION, self(), allow_renegotiate),
-    {next_state, hello, State#state{allow_renegotiate = false}, [{next_event, internal, Hello}]};
+    {next_state, hello, State#state{allow_renegotiate = false, renegotiation = {true, peer}},
+     [{next_event, internal, Hello}]};
 connection(internal, #client_hello{}, #state{role = server, allow_renegotiate = false} = State0) ->
     Alert = ?ALERT_REC(?WARNING, ?NO_RENEGOTIATION),
     State1 = send_alert(Alert, State0),
     {Record, State} = ssl_connection:prepare_connection(State1, ?MODULE),
-    next_event(connection, Record, State);
+    next_event(?FUNCTION_NAME, Record, State);
 connection(Type, Event, State) ->
-     ssl_connection:connection(Type, Event, State, ?MODULE).
+     ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE).
 
 %%TODO does this make sense for DTLS ?
 downgrade(enter, _, State) ->
     {keep_state, State};
 downgrade(Type, Event, State) ->
-     ssl_connection:downgrade(Type, Event, State, ?MODULE).
+     ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE).
 
 %%--------------------------------------------------------------------
 %% Description: This function is called by a gen_fsm when it receives any
@@ -540,8 +551,7 @@ handle_info(new_cookie_secret, StateName,
                                             CookieInfo#{current_cookie_secret => dtls_v1:cookie_secret(),
                                                         previous_cookie_secret => Secret}}};
 handle_info(Msg, StateName, State) ->
-    ssl_connection:handle_info(Msg, StateName, State).
-
+    ssl_connection:StateName(info, Msg, State, ?MODULE).
 
 handle_call(Event, From, StateName, State) ->
     ssl_connection:handle_call(Event, From, StateName, State, ?MODULE).
@@ -796,7 +806,13 @@ next_event(connection = StateName, no_record,
     case next_record_if_active(State0) of
 	{no_record, State} ->
             ssl_connection:hibernate_after(StateName, State, Actions);
-	{#ssl_tls{epoch = CurrentEpoch} = Record, State} ->
+        {#ssl_tls{epoch = CurrentEpoch,
+                  type = ?HANDSHAKE,
+                  version = Version} = Record, State1} ->
+            State = dtls_version(StateName, Version, State1), 
+	    {next_state, StateName, State,
+	     [{next_event, internal, {protocol_record, Record}} | Actions]};
+        {#ssl_tls{epoch = CurrentEpoch} = Record, State} ->
 	    {next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]};
 	{#ssl_tls{epoch = Epoch,
 		  type = ?HANDSHAKE,
@@ -822,6 +838,12 @@ next_event(connection = StateName, no_record,
 next_event(connection = StateName, Record,
 	   #state{connection_states = #{current_read := #{epoch := CurrentEpoch}}} = State0, Actions) ->
     case Record of
+        #ssl_tls{epoch = CurrentEpoch,
+                 type = ?HANDSHAKE,
+                 version = Version} = Record ->
+            State = dtls_version(StateName, Version, State0), 
+	    {next_state, StateName, State,
+	     [{next_event, internal, {protocol_record, Record}} | Actions]};
 	#ssl_tls{epoch = CurrentEpoch} ->
 	    {next_state, StateName, State0, [{next_event, internal, {protocol_record, Record}} | Actions]};
 	#ssl_tls{epoch = Epoch,
@@ -845,11 +867,11 @@ next_event(StateName, Record,
     case Record of
 	no_record ->
 	    {next_state, StateName, State0, Actions};
-	#ssl_tls{epoch = CurrentEpoch,
-		  version = Version} = Record ->
-	    {next_state, StateName, 
-	     dtls_version(StateName, Version, State0), 
-	     [{next_event, internal, {protocol_record, Record}} | Actions]};
+        #ssl_tls{epoch = CurrentEpoch,
+                 version = Version} = Record ->
+            State = dtls_version(StateName, Version, State0),
+            {next_state, StateName,  State,
+         [{next_event, internal, {protocol_record, Record}} | Actions]};
 	#ssl_tls{epoch = _Epoch,
 		 version = _Version} = _Record ->
 	    %% TODO maybe buffer later epoch
@@ -895,7 +917,7 @@ next_flight(Flight) ->
     Flight#{handshakes => [],
 	    change_cipher_spec => undefined,
 	    handshakes_after_change_cipher_spec => []}.
-	
+       
 handle_flight_timer(#state{transport_cb = gen_udp,
                           flight_state = {retransmit, Timeout}} = State) ->
     start_retransmision_timer(Timeout, State);
@@ -923,21 +945,15 @@ dtls_handshake_events(Packets) ->
 renegotiate(#state{role = client} = State, Actions) ->
     %% Handle same way as if server requested
     %% the renegotiation
-    Hs0 = ssl_handshake:init_handshake_history(),
-    {next_state, connection, State#state{tls_handshake_history = Hs0,
-					 protocol_buffers = #protocol_buffers{}},
+    %%    Hs0 = ssl_handshake:init_handshake_history(),
+    {next_state, connection, State,
      [{next_event, internal, #hello_request{}} | Actions]};
 
-renegotiate(#state{role = server,
-		   connection_states = CS0} = State0, Actions) ->
+renegotiate(#state{role = server} = State0, Actions) ->
     HelloRequest = ssl_handshake:hello_request(),
-    CS = CS0#{write_msg_seq => 0},
-    {State1, MoreActions} = send_handshake(HelloRequest, 
-                                           State0#state{connection_states =
-                                                        CS}),
-    Hs0 = ssl_handshake:init_handshake_history(),
-    {Record, State} = next_record(State1#state{tls_handshake_history = Hs0,
-					       protocol_buffers = #protocol_buffers{}}),
+    State1 = prepare_flight(State0),
+    {State2, MoreActions} = send_handshake(HelloRequest, State1),
+    {Record, State} = next_record(State2),
     next_event(hello, Record, State, Actions ++ MoreActions).
 
 handle_alerts([], Result) ->
@@ -953,7 +969,6 @@ retransmit_epoch(_StateName, #state{connection_states = ConnectionStates}) ->
     #{epoch := Epoch} = 
 	ssl_record:current_connection_state(ConnectionStates, write),
     Epoch.
-
 	    
 update_handshake_history(#hello_verify_request{}, _, Hist) ->
     Hist;
diff --git a/lib/ssl/src/dtls_record.erl b/lib/ssl/src/dtls_record.erl
index 8a7f8c1d0a..a8520717e5 100644
--- a/lib/ssl/src/dtls_record.erl
+++ b/lib/ssl/src/dtls_record.erl
@@ -30,7 +30,7 @@
 -include("ssl_cipher.hrl").
 
 %% Handling of incoming data
--export([get_dtls_records/2,  init_connection_states/2]).
+-export([get_dtls_records/2,  init_connection_states/2, empty_connection_state/1]).
 
 %% Decoding
 -export([decode_cipher_text/2]).
@@ -75,7 +75,7 @@ init_connection_states(Role, BeastMitigation) ->
     Initial = initial_connection_state(ConnectionEnd, BeastMitigation),
     Current = Initial#{epoch := 0},
     InitialPending = ssl_record:empty_connection_state(ConnectionEnd, BeastMitigation),
-    Pending = InitialPending#{epoch => undefined, replay_window => init_replay_window(?REPLAY_WINDOW_SIZE)},
+    Pending = empty_connection_state(InitialPending),
     #{saved_read  => Current,
       current_read  => Current,
       pending_read  => Pending,
@@ -83,6 +83,10 @@ init_connection_states(Role, BeastMitigation) ->
       current_write => Current,
       pending_write => Pending}.
 
+empty_connection_state(Empty) ->    
+    Empty#{epoch => undefined, replay_window => init_replay_window(?REPLAY_WINDOW_SIZE)}.
+
+
 %%--------------------------------------------------------------------
 -spec save_current_connection_state(ssl_record:connection_states(), read | write) ->
 				      ssl_record:connection_states().
diff --git a/lib/ssl/src/dtls_socket.erl b/lib/ssl/src/dtls_socket.erl
index 5f854fbb4b..0e4ab089dc 100644
--- a/lib/ssl/src/dtls_socket.erl
+++ b/lib/ssl/src/dtls_socket.erl
@@ -24,7 +24,7 @@
 
 -export([send/3, listen/3, accept/3, connect/4, socket/4, setopts/3, getopts/3, getstat/3, 
 	 peername/2, sockname/2, port/2, close/2]).
--export([emulated_options/0, internal_inet_values/0, default_inet_values/0, default_cb_info/0]).
+-export([emulated_options/0, emulated_options/1, internal_inet_values/0, default_inet_values/0, default_cb_info/0]).
 
 send(Transport, {{IP,Port},Socket}, Data) ->
     Transport:send(Socket, IP, Port, Data).
@@ -133,6 +133,9 @@ port(Transport, Socket) ->
 emulated_options() ->
     [mode, active,  packet, packet_size].
 
+emulated_options(Opts) ->
+      emulated_options(Opts, internal_inet_values(), default_inet_values()).
+
 internal_inet_values() ->
     [{active, false}, {mode,binary}].
 
@@ -158,3 +161,29 @@ emulated_socket_options(InetValues, #socket_options{
        packet_size = proplists:get_value(packet_size, InetValues, PacketSize),
        active = proplists:get_value(active, InetValues, Active)
       }.
+
+emulated_options([{mode, Value} = Opt |Opts], Inet, Emulated) ->
+    validate_inet_option(mode, Value),
+    emulated_options(Opts, Inet, [Opt | proplists:delete(mode, Emulated)]);
+emulated_options([{header, _} = Opt | _], _, _) ->
+    throw({error, {options, {not_supported, Opt}}});
+emulated_options([{active, Value} = Opt |Opts], Inet, Emulated) ->
+    validate_inet_option(active, Value),
+    emulated_options(Opts, Inet, [Opt | proplists:delete(active, Emulated)]);
+emulated_options([{packet, _} = Opt | _], _, _) ->
+    throw({error, {options, {not_supported, Opt}}});
+emulated_options([{packet_size, _} = Opt | _], _, _) ->
+    throw({error, {options, {not_supported, Opt}}});
+emulated_options([Opt|Opts], Inet, Emulated) ->
+    emulated_options(Opts, [Opt|Inet], Emulated);
+emulated_options([], Inet,Emulated) ->
+    {Inet, Emulated}.
+
+validate_inet_option(mode, Value)
+  when Value =/= list, Value =/= binary ->
+    throw({error, {options, {mode,Value}}});
+validate_inet_option(active, Value)
+  when Value =/= true, Value =/= false, Value =/= once ->
+    throw({error, {options, {active,Value}}});
+validate_inet_option(_, _) ->
+    ok.
diff --git a/lib/ssl/src/inet6_tls_dist.erl b/lib/ssl/src/inet6_tls_dist.erl
index ffd7296f93..96ce4d493a 100644
--- a/lib/ssl/src/inet6_tls_dist.erl
+++ b/lib/ssl/src/inet6_tls_dist.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2015. All Rights Reserved.
+%% Copyright Ericsson AB 2015-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -21,7 +21,8 @@
 %%
 -module(inet6_tls_dist).
 
--export([childspecs/0, listen/1, accept/1, accept_connection/5,
+-export([childspecs/0]).
+-export([listen/1, accept/1, accept_connection/5,
 	 setup/5, close/1, select/1]).
 
 childspecs() ->
@@ -43,4 +44,4 @@ setup(Node, Type, MyNode, LongOrShortNames,SetupTime) ->
     inet_tls_dist:gen_setup(inet6_tcp, Node, Type, MyNode, LongOrShortNames,SetupTime).
 
 close(Socket) ->
-    inet_tls_dist:close(Socket).
+    inet_tls_dist:gen_close(inet6_tcp, Socket).
diff --git a/lib/ssl/src/inet_tls_dist.erl b/lib/ssl/src/inet_tls_dist.erl
index 0da4b3587f..96782dcfc0 100644
--- a/lib/ssl/src/inet_tls_dist.erl
+++ b/lib/ssl/src/inet_tls_dist.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2011-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2011-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -21,17 +21,26 @@
 %%
 -module(inet_tls_dist).
 
--export([childspecs/0, listen/1, accept/1, accept_connection/5,
+-export([childspecs/0]).
+-export([listen/1, accept/1, accept_connection/5,
 	 setup/5, close/1, select/1, is_node_name/1]).
 
 %% Generalized dist API
 -export([gen_listen/2, gen_accept/2, gen_accept_connection/6,
-	 gen_setup/6, gen_select/2]).
+	 gen_setup/6, gen_close/2, gen_select/2]).
+
+-export([split_node/1, nodelay/0]).
+
+-export([dbg/0]). % Debug
 
 -include_lib("kernel/include/net_address.hrl").
 -include_lib("kernel/include/dist.hrl").
 -include_lib("kernel/include/dist_util.hrl").
 
+-include("ssl_api.hrl").
+
+%% -------------------------------------------------------------------------
+
 childspecs() ->
     {ok, [{ssl_dist_sup,{ssl_dist_sup, start_link, []},
 	   permanent, infinity, supervisor, [ssl_dist_sup]}]}.
@@ -40,111 +49,366 @@ select(Node) ->
     gen_select(inet_tcp, Node).
 
 gen_select(Driver, Node) ->
-    case split_node(atom_to_list(Node), $@, []) of
-	[_, Host] ->
-	    case inet:getaddr(Host, Driver:family()) of
+    case split_node(Node) of
+        false ->
+            false;
+        Host ->
+	    case Driver:getaddr(Host) of
 		{ok, _} -> true;
 		_ -> false
-	    end;
-	_ -> 
-	    false
+	    end
     end.
 
-is_node_name(Node) when is_atom(Node) ->
-    select(Node);
-is_node_name(_) ->
-    false.
+%% -------------------------------------------------------------------------
+
+is_node_name(Node) ->
+    case split_node(Node) of
+        false ->
+            false;
+        _Host ->
+            true
+    end.
+
+%% -------------------------------------------------------------------------
+
+hs_data_common(#sslsocket{pid = DistCtrl} = SslSocket) ->
+    #hs_data{
+       f_send =
+           fun (Ctrl, Packet) when Ctrl == DistCtrl ->
+                   f_send(SslSocket, Packet)
+           end,
+       f_recv =
+           fun (Ctrl, Length, Timeout) when Ctrl == DistCtrl ->
+                   f_recv(SslSocket, Length, Timeout)
+           end,
+       f_setopts_pre_nodeup =
+           fun (Ctrl) when Ctrl == DistCtrl ->
+                   f_setopts_pre_nodeup(SslSocket)
+           end,
+       f_setopts_post_nodeup =
+           fun (Ctrl) when Ctrl == DistCtrl ->
+%%%                   sys:trace(Ctrl, true),
+                   f_setopts_post_nodeup(SslSocket)
+           end,
+       f_getll =
+           fun (Ctrl) when Ctrl == DistCtrl ->
+                   f_getll(DistCtrl)
+           end,
+       f_address =
+           fun (Ctrl, Node) when Ctrl == DistCtrl ->
+                   f_address(SslSocket, Node)
+           end,
+       mf_tick =
+           fun (Ctrl) when Ctrl == DistCtrl ->
+                   mf_tick(DistCtrl)
+           end,
+       mf_getstat =
+           fun (Ctrl) when Ctrl == DistCtrl ->
+                   mf_getstat(SslSocket)
+           end,
+       mf_setopts =
+           fun (Ctrl, Opts) when Ctrl == DistCtrl ->
+                   mf_setopts(SslSocket, Opts)
+           end,
+       mf_getopts =
+           fun (Ctrl, Opts) when Ctrl == DistCtrl ->
+                   mf_getopts(SslSocket, Opts)
+           end,
+       f_handshake_complete =
+           fun (Ctrl, Node, DHandle) when Ctrl == DistCtrl ->
+                   f_handshake_complete(DistCtrl, Node, DHandle)
+           end}.
+
+f_send(SslSocket, Packet) ->
+    ssl:send(SslSocket, Packet).
+
+f_recv(SslSocket, Length, Timeout) ->
+    case ssl:recv(SslSocket, Length, Timeout) of
+        {ok, Bin} when is_binary(Bin) ->
+            {ok, binary_to_list(Bin)};
+        Other ->
+            Other
+    end.
+
+f_setopts_pre_nodeup(_SslSocket) ->
+    ok.
+
+f_setopts_post_nodeup(_SslSocket) ->
+    ok.
+
+f_getll(DistCtrl) ->
+    {ok, DistCtrl}.
+
+f_address(SslSocket, Node) ->
+    case ssl:peername(SslSocket) of
+        {ok, Address} ->
+            case split_node(Node) of
+                false ->
+                    {error, no_node};
+                Host ->
+                    #net_address{
+                       address=Address, host=Host,
+                       protocol=tls, family=inet}
+            end
+    end.
+
+mf_tick(DistCtrl) ->
+    DistCtrl ! tick,
+    ok.
+
+mf_getstat(SslSocket) ->
+    case ssl:getstat(
+           SslSocket, [recv_cnt, send_cnt, send_pend]) of
+        {ok, Stat} ->
+            split_stat(Stat,0,0,0);
+        Error ->
+            Error
+    end.
+
+mf_setopts(SslSocket, Opts) ->
+    case setopts_filter(Opts) of
+        [] ->
+            ssl:setopts(SslSocket, Opts);
+        Opts1 ->
+            {error, {badopts,Opts1}}
+    end.
+
+mf_getopts(SslSocket, Opts) ->
+    ssl:getopts(SslSocket, Opts).
+
+f_handshake_complete(DistCtrl, Node, DHandle) ->
+    ssl_connection:handshake_complete(DistCtrl, Node, DHandle).
+
+
+setopts_filter(Opts) ->
+    [Opt || {K,_} = Opt <- Opts,
+            K =:= active orelse K =:= deliver orelse K =:= packet].
+
+split_stat([{recv_cnt, R}|Stat], _, W, P) ->
+    split_stat(Stat, R, W, P);
+split_stat([{send_cnt, W}|Stat], R, _, P) ->
+    split_stat(Stat, R, W, P);
+split_stat([{send_pend, P}|Stat], R, W, _) ->
+    split_stat(Stat, R, W, P);
+split_stat([], R, W, P) ->
+    {ok, R, W, P}.
+
+%% -------------------------------------------------------------------------
 
 listen(Name) ->
     gen_listen(inet_tcp, Name).
 
 gen_listen(Driver, Name) ->
-    ssl_tls_dist_proxy:listen(Driver, Name).
+    case inet_tcp_dist:gen_listen(Driver, Name) of
+        {ok, {Socket, Address, Creation}} ->
+            inet:setopts(Socket, [{packet, 4}]),
+            {ok, {Socket, Address#net_address{protocol=tls}, Creation}};
+        Other ->
+            Other
+    end.
+
+%% -------------------------------------------------------------------------
 
 accept(Listen) ->
     gen_accept(inet_tcp, Listen).
 
 gen_accept(Driver, Listen) ->
-    ssl_tls_dist_proxy:accept(Driver, Listen).
+    Kernel = self(),
+    monitor_pid(
+      spawn_opt(
+        fun () ->
+                accept_loop(Driver, Listen, Kernel)
+        end,
+        [link, {priority, max}])).
 
-accept_connection(AcceptPid, Socket, MyNode, Allowed, SetupTime) ->
-    gen_accept_connection(inet_tcp, AcceptPid, Socket, MyNode, Allowed, SetupTime).
+accept_loop(Driver, Listen, Kernel) ->
+    case Driver:accept(Listen) of
+        {ok, Socket} ->
+            Opts = get_ssl_options(server),
+            wait_for_code_server(),
+            case ssl:ssl_accept(
+                   Socket, [{active, false}, {packet, 4}] ++ Opts,
+                   net_kernel:connecttime()) of
+                {ok, #sslsocket{pid = DistCtrl} = SslSocket} ->
+                    monitor_pid(DistCtrl),
+                    trace(
+                      Kernel !
+                          {accept, self(), DistCtrl,
+                           Driver:family(), tls}),
+                    receive
+                        {Kernel, controller, Pid} ->
+                            ok = ssl:controlling_process(SslSocket, Pid),
+                            trace(
+                              Pid ! {self(), controller});
+                        {Kernel, unsupported_protocol} ->
+                            exit(trace(unsupported_protocol))
+                    end,
+                    accept_loop(Driver, Listen, Kernel);
+		{error, {options, _}} = Error ->
+		    %% Bad options: that's probably our fault.
+                    %% Let's log that.
+		    error_logger:error_msg(
+                      "Cannot accept TLS distribution connection: ~s~n",
+                      [ssl:format_error(Error)]),
+                    _ = trace(Error),
+                    gen_tcp:close(Socket);
+		Other ->
+                    _ = trace(Other),
+                    gen_tcp:close(Socket)
+	    end;
+	Error ->
+	    exit(trace(Error))
+    end,
+    accept_loop(Driver, Listen, Kernel).
 
-gen_accept_connection(Driver, AcceptPid, Socket, MyNode, Allowed, SetupTime) ->
+wait_for_code_server() ->
+    %% This is an ugly hack.  Upgrading a socket to TLS requires the
+    %% crypto module to be loaded.  Loading the crypto module triggers
+    %% its on_load function, which calls code:priv_dir/1 to find the
+    %% directory where its NIF library is.  However, distribution is
+    %% started earlier than the code server, so the code server is not
+    %% necessarily started yet, and code:priv_dir/1 might fail because
+    %% of that, if we receive an incoming connection on the
+    %% distribution port early enough.
+    %%
+    %% If the on_load function of a module fails, the module is
+    %% unloaded, and the function call that triggered loading it fails
+    %% with 'undef', which is rather confusing.
+    %%
+    %% Thus, the accept process will terminate, and be
+    %% restarted by ssl_dist_sup.  However, it won't have any memory
+    %% of being asked by net_kernel to listen for incoming
+    %% connections.  Hence, the node will believe that it's open for
+    %% distribution, but it actually isn't.
+    %%
+    %% So let's avoid that by waiting for the code server to start.
+    case whereis(code_server) of
+	undefined ->
+	    timer:sleep(10),
+	    wait_for_code_server();
+	Pid when is_pid(Pid) ->
+	    ok
+    end.
+
+%% -------------------------------------------------------------------------
+
+accept_connection(AcceptPid, DistCtrl, MyNode, Allowed, SetupTime) ->
+    gen_accept_connection(
+      inet_tcp, AcceptPid, DistCtrl, MyNode, Allowed, SetupTime).
+
+gen_accept_connection(
+  Driver, AcceptPid, DistCtrl, MyNode, Allowed, SetupTime) ->
     Kernel = self(),
-    spawn_link(fun() -> do_accept(Driver, Kernel, AcceptPid, Socket,
-				  MyNode, Allowed, SetupTime) end).
+    monitor_pid(
+      spawn_opt(
+        fun() ->
+                do_accept(
+                  Driver, Kernel, AcceptPid, DistCtrl,
+                  MyNode, Allowed, SetupTime)
+        end,
+        [link, {priority, max}])).
+
+do_accept(Driver, Kernel, AcceptPid, DistCtrl, MyNode, Allowed, SetupTime) ->
+    SslSocket = ssl_connection:get_sslsocket(DistCtrl),
+    receive
+	{AcceptPid, controller} ->
+	    Timer = dist_util:start_timer(SetupTime),
+	    case check_ip(Driver, SslSocket) of
+		true ->
+                    HSData0 = hs_data_common(SslSocket),
+                    HSData =
+                        HSData0#hs_data{
+                          kernel_pid = Kernel,
+                          this_node = MyNode,
+                          socket = DistCtrl,
+                          timer = Timer,
+                          this_flags = 0,
+                          allowed = Allowed},
+		    dist_util:handshake_other_started(trace(HSData));
+		{false,IP} ->
+		    error_logger:error_msg(
+                      "** Connection attempt from "
+                      "disallowed IP ~w ** ~n", [IP]),
+		    ?shutdown(trace(no_node))
+	    end
+    end.
+
+
 
-setup(Node, Type, MyNode, LongOrShortNames,SetupTime) ->
-    gen_setup(inet_tcp, Node, Type, MyNode, LongOrShortNames,SetupTime).
+setup(Node, Type, MyNode, LongOrShortNames, SetupTime) ->
+    gen_setup(inet_tcp, Node, Type, MyNode, LongOrShortNames, SetupTime).
 
-gen_setup(Driver, Node, Type, MyNode, LongOrShortNames,SetupTime) ->
+gen_setup(Driver, Node, Type, MyNode, LongOrShortNames, SetupTime) ->
     Kernel = self(),
-    spawn_opt(fun() -> do_setup(Driver, Kernel, Node, Type, MyNode, LongOrShortNames, SetupTime) end, [link, {priority, max}]).
-		   
+    monitor_pid(
+      spawn_opt(
+        fun() ->
+                do_setup(
+                  Driver, Kernel, Node, Type,
+                  MyNode, LongOrShortNames, SetupTime)
+        end,
+        [link, {priority, max}])).
+
 do_setup(Driver, Kernel, Node, Type, MyNode, LongOrShortNames, SetupTime) ->
     [Name, Address] = splitnode(Driver, Node, LongOrShortNames),
-    case inet:getaddr(Address, Driver:family()) of
+    case Driver:getaddr(Address) of
 	{ok, Ip} ->
-	    Timer = dist_util:start_timer(SetupTime),
+            Timer = trace(dist_util:start_timer(SetupTime)),
 	    ErlEpmd = net_kernel:epmd_module(),
 	    case ErlEpmd:port_please(Name, Ip) of
 		{port, TcpPort, Version} ->
-		    ?trace("port_please(~p) -> version ~p~n", 
-			   [Node,Version]),
+                    Opts = trace(connect_options(get_ssl_options(client))),
 		    dist_util:reset_timer(Timer),
-		    case ssl_tls_dist_proxy:connect(Driver, Ip, TcpPort) of
-			{ok, Socket} ->
-			    HSData = connect_hs_data(Kernel, Node, MyNode, Socket, 
-						     Timer, Version, Ip, TcpPort, Address,
-						     Type),
-			    dist_util:handshake_we_started(HSData);
+                    case ssl:connect(
+                           Address, TcpPort,
+                           [binary, {active, false}, {packet, 4},
+                            Driver:family(), nodelay()] ++ Opts,
+                           net_kernel:connecttime()) of
+			{ok, #sslsocket{pid = DistCtrl} = SslSocket} ->
+                            monitor_pid(DistCtrl),
+                            ok = ssl:controlling_process(SslSocket, self()),
+                            HSData0 = hs_data_common(SslSocket),
+			    HSData =
+                                HSData0#hs_data{
+                                  kernel_pid = Kernel,
+                                  other_node = Node,
+                                  this_node = MyNode,
+                                  socket = DistCtrl,
+                                  timer = Timer,
+                                  this_flags = 0,
+                                  other_version = Version,
+                                  request_type = Type},
+			    dist_util:handshake_we_started(trace(HSData));
 			Other ->
 			    %% Other Node may have closed since 
 			    %% port_please !
-			    ?trace("other node (~p) "
-				   "closed since port_please.~n", 
-				   [Node]),
-			    ?shutdown2(Node, {shutdown, {connect_failed, Other}})
+			    ?shutdown2(
+                               Node,
+                               trace({shutdown, {connect_failed, Other}}))
 		    end;
 		Other ->
-		    ?trace("port_please (~p) "
-			   "failed.~n", [Node]),
-		    ?shutdown2(Node, {shutdown, {port_please_failed, Other}})
+		    ?shutdown2(
+                       Node,
+                       trace({shutdown, {port_please_failed, Other}}))
 	    end;
 	Other ->
-	    ?trace("inet_getaddr(~p) "
-		   "failed (~p).~n", [Node,Other]),
-	    ?shutdown2(Node, {shutdown, {inet_getaddr_failed, Other}})
+	    ?shutdown2(Node, trace({shutdown, {getaddr_failed, Other}}))
     end.
 
 close(Socket) ->
-    gen_tcp:close(Socket),
-    ok.
+    gen_close(inet, Socket).
+
+gen_close(Driver, Socket) ->
+    trace(Driver:close(Socket)).
 
-do_accept(Driver, Kernel, AcceptPid, Socket, MyNode, Allowed, SetupTime) ->
-    process_flag(priority, max),
-    receive
-	{AcceptPid, controller} ->
-	    Timer = dist_util:start_timer(SetupTime),
-	    case check_ip(Driver, Socket) of
-		true ->
-		    HSData = accept_hs_data(Kernel, MyNode, Socket, Timer, Allowed),
-		    dist_util:handshake_other_started(HSData);
-		{false,IP} ->
-		    error_logger:error_msg("** Connection attempt from "
-					   "disallowed IP ~w ** ~n", [IP]),
-		    ?shutdown(no_node)
-	    end
-    end.
 %% ------------------------------------------------------------
 %% Do only accept new connection attempts from nodes at our
 %% own LAN, if the check_ip environment parameter is true.
 %% ------------------------------------------------------------
-check_ip(Driver, Socket) ->
+check_ip(Driver, SslSocket) ->
     case application:get_env(check_ip) of
 	{ok, true} ->
-	    case get_ifs(Socket) of
+	    case get_ifs(SslSocket) of
 		{ok, IFs, IP} ->
 		    check_ip(Driver, IFs, IP);
 		_ ->
@@ -154,9 +418,18 @@ check_ip(Driver, Socket) ->
 	    true
     end.
 
-get_ifs(Socket) ->
+check_ip(Driver, [{OwnIP, _, Netmask}|IFs], PeerIP) ->
+    case {Driver:mask(Netmask, PeerIP), Driver:mask(Netmask, OwnIP)} of
+	{M, M} -> true;
+	_      -> check_ip(IFs, PeerIP)
+    end;
+check_ip(_Driver, [], PeerIP) ->
+    {false, PeerIP}.
+
+get_ifs(#sslsocket{fd = {gen_tcp, Socket, _}}) ->
     case inet:peername(Socket) of
 	{ok, {IP, _}} ->
+            %% XXX this is seriously broken for IPv6
 	    case inet:getif(Socket) of
 		{ok, IFs} -> {ok, IFs, IP};
 		Error     -> Error
@@ -165,14 +438,6 @@ get_ifs(Socket) ->
 	    Error
     end.
 
-check_ip(Driver, [{OwnIP, _, Netmask}|IFs], PeerIP) ->
-    case {Driver:mask(Netmask, PeerIP), Driver:mask(Netmask, OwnIP)} of
-	{M, M} -> true;
-	_      -> check_ip(IFs, PeerIP)
-    end;
-check_ip(_Driver, [], PeerIP) ->
-    {false, PeerIP}.
-
 
 %% If Node is illegal terminate the connection setup!!
 splitnode(Driver, Node, LongOrShortNames) ->
@@ -181,11 +446,13 @@ splitnode(Driver, Node, LongOrShortNames) ->
 	    Host = lists:append(Tail),
 	    check_node(Driver, Name, Node, Host, LongOrShortNames);
 	[_] ->
-	    error_logger:error_msg("** Nodename ~p illegal, no '@' character **~n",
-		      [Node]),
+	    error_logger:error_msg(
+              "** Nodename ~p illegal, no '@' character **~n",
+              [Node]),
 	    ?shutdown(Node);
 	_ ->
-	    error_logger:error_msg("** Nodename ~p illegal **~n", [Node]),
+	    error_logger:error_msg(
+              "** Nodename ~p illegal **~n", [Node]),
 	    ?shutdown(Node)
     end.
 
@@ -196,23 +463,34 @@ check_node(Driver, Name, Node, Host, LongOrShortNames) ->
 		{ok, _} ->
 		    [Name, Host];
 		_ ->
-		    error_logger:error_msg("** System running to use "
-					   "fully qualified "
-					   "hostnames **~n"
-					   "** Hostname ~s is illegal **~n",
-					   [Host]),
+		    error_logger:error_msg(
+                      "** System running to use "
+                      "fully qualified hostnames **~n"
+                      "** Hostname ~s is illegal **~n",
+                      [Host]),
 		    ?shutdown(Node)
 	    end;
 	[_, _ | _] when LongOrShortNames == shortnames ->
-	    error_logger:error_msg("** System NOT running to use fully qualified "
-			      "hostnames **~n"
-		      "** Hostname ~s is illegal **~n",
-		      [Host]),
+	    error_logger:error_msg(
+              "** System NOT running to use "
+              "fully qualified hostnames **~n"
+              "** Hostname ~s is illegal **~n",
+              [Host]),
 	    ?shutdown(Node);
 	_ ->
 	    [Name, Host]
     end.
 
+split_node(Node) when is_atom(Node) ->
+    case split_node(atom_to_list(Node), $@, []) of
+        [_, Host] ->
+            Host;
+        _ ->
+            false
+    end;
+split_node(_) ->
+    false.
+%%
 split_node([Chr|T], Chr, Ack) -> 
     [lists:reverse(Ack)|split_node(T, Chr, [])];
 split_node([H|T], Chr, Ack) -> 
@@ -220,70 +498,154 @@ split_node([H|T], Chr, Ack) ->
 split_node([], _, Ack) -> 
     [lists:reverse(Ack)].
 
-connect_hs_data(Kernel, Node, MyNode, Socket, Timer, Version, Ip, TcpPort, Address, Type) ->
-    common_hs_data(Kernel, MyNode, Socket, Timer, 
-		   #hs_data{other_node = Node,
-			    other_version = Version,
-			    f_address = 
-				fun(_,_) ->
-					#net_address{address = {Ip,TcpPort},
-						     host = Address,
-						     protocol = proxy,
-						     family = inet}
-				end,
-			    request_type = Type
-			   }).
-
-accept_hs_data(Kernel, MyNode, Socket, Timer, Allowed) ->
-    common_hs_data(Kernel, MyNode, Socket, Timer, #hs_data{
-					     allowed = Allowed,
-					     f_address = fun get_remote_id/2
-					    }).
-
-common_hs_data(Kernel, MyNode, Socket, Timer, HsData) ->
-    HsData#hs_data{
-      kernel_pid = Kernel,
-      this_node = MyNode,
-      socket = Socket,
-      timer = Timer,
-      this_flags = 0,
-      f_send = 
-	  fun(S,D) -> 
-		  gen_tcp:send(S,D) 
-	  end,
-      f_recv = 
-	  fun(S,N,T) -> 
-		  gen_tcp:recv(S,N,T) 
-	  end,
-      f_setopts_pre_nodeup = 
-	  fun(S) ->
-		  inet:setopts(S, [{active, false}, {packet, 4}])
-	  end,
-		   f_setopts_post_nodeup = 
-	  fun(S) -> 
-		  inet:setopts(S, [{deliver, port},{active, true}])
-	  end,
-      f_getll = 
-	  fun(S) -> 
-		  inet:getll(S) 
-	  end,
-      mf_tick = 
-	  fun(S) -> 
-		  gen_tcp:send(S, <<>>)
-	  end,
-      mf_getstat = 
-	  fun(S) ->
-		  {ok, Stats} = inet:getstat(S, [recv_cnt, send_cnt, send_pend]),
-		  R = proplists:get_value(recv_cnt, Stats, 0),
-		  W = proplists:get_value(send_cnt, Stats, 0),
-		  P = proplists:get_value(send_pend, Stats, 0),
-		  {ok, R,W,P}
-	  end}.
-
-get_remote_id(Socket, _Node) ->
-    case ssl_tls_dist_proxy:get_tcp_address(Socket) of
-        {ok, Address} ->
-	    Address;
-	{error, _Reason} ->
-	    ?shutdown(no_node)
+%% -------------------------------------------------------------------------
+
+connect_options(Opts) ->
+    case application:get_env(kernel, inet_dist_connect_options) of
+	{ok,ConnectOpts} ->
+	    lists:ukeysort(1, ConnectOpts ++ Opts);
+	_ ->
+	    Opts
     end.
+
+%% we may not always want the nodelay behaviour
+%% for performance reasons
+nodelay() ->
+    case application:get_env(kernel, dist_nodelay) of
+	undefined ->
+	    {nodelay, true};
+	{ok, true} ->
+	    {nodelay, true};
+	{ok, false} ->
+	    {nodelay, false};
+	_ ->
+	    {nodelay, true}
+    end.
+
+
+get_ssl_options(Type) ->
+    case init:get_argument(ssl_dist_opt) of
+	{ok, Args} ->
+	    [{erl_dist, true} | ssl_options(Type, lists:append(Args))];
+	_ ->
+	    [{erl_dist, true}]
+    end.
+
+ssl_options(_,[]) ->
+    [];
+ssl_options(server, ["client_" ++ _, _Value |T]) ->
+    ssl_options(server,T);
+ssl_options(client, ["server_" ++ _, _Value|T]) ->
+    ssl_options(client,T);
+ssl_options(server, ["server_certfile", Value|T]) ->
+    [{certfile, Value} | ssl_options(server,T)];
+ssl_options(client, ["client_certfile", Value | T]) ->
+    [{certfile, Value} | ssl_options(client,T)];
+ssl_options(server, ["server_cacertfile", Value|T]) ->
+    [{cacertfile, Value} | ssl_options(server,T)];
+ssl_options(client, ["client_cacertfile", Value|T]) ->
+    [{cacertfile, Value} | ssl_options(client,T)];
+ssl_options(server, ["server_keyfile", Value|T]) ->
+    [{keyfile, Value} | ssl_options(server,T)];
+ssl_options(client, ["client_keyfile", Value|T]) ->
+    [{keyfile, Value} | ssl_options(client,T)];
+ssl_options(server, ["server_password", Value|T]) ->
+    [{password, Value} | ssl_options(server,T)];
+ssl_options(client, ["client_password", Value|T]) ->
+    [{password, Value} | ssl_options(client,T)];
+ssl_options(server, ["server_verify", Value|T]) ->
+    [{verify, atomize(Value)} | ssl_options(server,T)];
+ssl_options(client, ["client_verify", Value|T]) ->
+    [{verify, atomize(Value)} | ssl_options(client,T)];
+ssl_options(server, ["server_verify_fun", Value|T]) ->
+    [{verify_fun, verify_fun(Value)} | ssl_options(server,T)];
+ssl_options(client, ["client_verify_fun", Value|T]) ->
+    [{verify_fun, verify_fun(Value)} | ssl_options(client,T)];
+ssl_options(server, ["server_crl_check", Value|T]) ->
+    [{crl_check, atomize(Value)} | ssl_options(server,T)];
+ssl_options(client, ["client_crl_check", Value|T]) ->
+    [{crl_check, atomize(Value)} | ssl_options(client,T)];
+ssl_options(server, ["server_crl_cache", Value|T]) ->
+    [{crl_cache, termify(Value)} | ssl_options(server,T)];
+ssl_options(client, ["client_crl_cache", Value|T]) ->
+    [{crl_cache, termify(Value)} | ssl_options(client,T)];
+ssl_options(server, ["server_reuse_sessions", Value|T]) ->
+    [{reuse_sessions, atomize(Value)} | ssl_options(server,T)];
+ssl_options(client, ["client_reuse_sessions", Value|T]) ->
+    [{reuse_sessions, atomize(Value)} | ssl_options(client,T)];
+ssl_options(server, ["server_secure_renegotiate", Value|T]) ->
+    [{secure_renegotiate, atomize(Value)} | ssl_options(server,T)];
+ssl_options(client, ["client_secure_renegotiate", Value|T]) ->
+    [{secure_renegotiate, atomize(Value)} | ssl_options(client,T)];
+ssl_options(server, ["server_depth", Value|T]) ->
+    [{depth, list_to_integer(Value)} | ssl_options(server,T)];
+ssl_options(client, ["client_depth", Value|T]) ->
+    [{depth, list_to_integer(Value)} | ssl_options(client,T)];
+ssl_options(server, ["server_hibernate_after", Value|T]) ->
+    [{hibernate_after, list_to_integer(Value)} | ssl_options(server,T)];
+ssl_options(client, ["client_hibernate_after", Value|T]) ->
+    [{hibernate_after, list_to_integer(Value)} | ssl_options(client,T)];
+ssl_options(server, ["server_ciphers", Value|T]) ->
+    [{ciphers, Value} | ssl_options(server,T)];
+ssl_options(client, ["client_ciphers", Value|T]) ->
+    [{ciphers, Value} | ssl_options(client,T)];
+ssl_options(server, ["server_dhfile", Value|T]) ->
+    [{dhfile, Value} | ssl_options(server,T)];
+ssl_options(server, ["server_fail_if_no_peer_cert", Value|T]) ->
+    [{fail_if_no_peer_cert, atomize(Value)} | ssl_options(server,T)];
+ssl_options(Type, Opts) ->
+    error(malformed_ssl_dist_opt, [Type, Opts]).
+
+atomize(List) when is_list(List) ->
+    list_to_atom(List);
+atomize(Atom) when is_atom(Atom) ->
+    Atom.
+
+termify(String) when is_list(String) ->
+    {ok, Tokens, _} = erl_scan:string(String ++ "."),
+    {ok, Term} = erl_parse:parse_term(Tokens),
+    Term.
+
+verify_fun(Value) ->
+    case termify(Value) of
+	{Mod, Func, State} when is_atom(Mod), is_atom(Func) ->
+	    Fun = fun Mod:Func/3,
+	    {Fun, State};
+	_ ->
+	    error(malformed_ssl_dist_opt, [Value])
+    end.
+
+%% -------------------------------------------------------------------------
+
+%% Trace point
+trace(Term) -> Term.
+
+%% Keep an eye on distribution Pid:s we know of
+monitor_pid(Pid) ->
+    %%spawn(
+    %%  fun () ->
+    %%          MRef = erlang:monitor(process, Pid),
+    %%          receive
+    %%              {'DOWN', MRef, _, _, normal} ->
+    %%                  error_logger:error_report(
+    %%                    [dist_proc_died,
+    %%                     {reason, normal},
+    %%                     {pid, Pid}]);
+    %%              {'DOWN', MRef, _, _, Reason} ->
+    %%                  error_logger:info_report(
+    %%                    [dist_proc_died,
+    %%                     {reason, Reason},
+    %%                     {pid, Pid}])
+    %%          end
+    %%  end),
+    Pid.
+
+dbg() ->
+    dbg:stop(),
+    dbg:tracer(),
+    dbg:p(all, c),
+    dbg:tpl(?MODULE, cx),
+    dbg:tpl(erlang, dist_ctrl_get_data_notification, cx),
+    dbg:tpl(erlang, dist_ctrl_get_data, cx),
+    dbg:tpl(erlang, dist_ctrl_put_data, cx),
+    ok.
diff --git a/lib/ssl/src/ssl.app.src b/lib/ssl/src/ssl.app.src
index 064dcd6892..c5b55641a1 100644
--- a/lib/ssl/src/ssl.app.src
+++ b/lib/ssl/src/ssl.app.src
@@ -37,7 +37,6 @@
 	       %% Erlang Distribution over SSL/TLS
 	       inet_tls_dist,
 	       inet6_tls_dist,
-	       ssl_tls_dist_proxy,
 	       ssl_dist_sup,
                ssl_dist_connection_sup,
                ssl_dist_admin_sup,
@@ -63,7 +62,5 @@
     {applications, [crypto, public_key, kernel, stdlib]},
     {env, []},
     {mod, {ssl_app, []}},
-    {runtime_dependencies, ["stdlib-3.2","public_key-1.2","kernel-3.0",
-			    "erts-7.0","crypto-3.3", "inets-5.10.7"]}]}.
-
-
+    {runtime_dependencies, ["stdlib-3.2","public_key-1.5","kernel-6.0",
+			    "erts-10.0","crypto-3.3", "inets-5.10.7"]}]}.
diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl
index 4e592c02ec..60118549e4 100644
--- a/lib/ssl/src/ssl.erl
+++ b/lib/ssl/src/ssl.erl
@@ -1003,7 +1003,7 @@ validate_option(server_name_indication = Opt, Value) when is_list(Value) ->
 validate_option(server_name_indication, undefined = Value) ->
     Value;
 validate_option(server_name_indication, disable) ->
-    undefined;
+    disable;
 
 validate_option(sni_hosts, []) ->
     [];
@@ -1113,24 +1113,6 @@ dtls_validate_versions([Version | Rest], Versions) when  Version == 'dtlsv1';
 dtls_validate_versions([Ver| _], Versions) ->
     throw({error, {options, {Ver, {versions, Versions}}}}).
 
-validate_inet_option(mode, Value)
-  when Value =/= list, Value =/= binary ->
-    throw({error, {options, {mode,Value}}});
-validate_inet_option(packet, Value)
-  when not (is_atom(Value) orelse is_integer(Value)) ->
-    throw({error, {options, {packet,Value}}});
-validate_inet_option(packet_size, Value)
-  when not is_integer(Value) ->
-    throw({error, {options, {packet_size,Value}}});
-validate_inet_option(header, Value)
-  when not is_integer(Value) ->
-    throw({error, {options, {header,Value}}});
-validate_inet_option(active, Value)
-  when Value =/= true, Value =/= false, Value =/= once ->
-    throw({error, {options, {active,Value}}});
-validate_inet_option(_, _) ->
-    ok.
-
 %% The option cacerts overrides cacertsfile
 ca_cert_default(_,_, [_|_]) ->
     undefined;
@@ -1145,31 +1127,11 @@ ca_cert_default(verify_peer, undefined, _) ->
 emulated_options(Protocol, Opts) ->
     case Protocol of
 	tls ->
-	    emulated_options(Opts, tls_socket:internal_inet_values(), tls_socket:default_inet_values());
+	    tls_socket:emulated_options(Opts);
 	dtls ->
-	    emulated_options(Opts, dtls_socket:internal_inet_values(), dtls_socket:default_inet_values())
+	    dtls_socket:emulated_options(Opts)
     end.
 
-emulated_options([{mode, Value} = Opt |Opts], Inet, Emulated) ->
-    validate_inet_option(mode, Value),
-    emulated_options(Opts, Inet, [Opt | proplists:delete(mode, Emulated)]);
-emulated_options([{header, Value} = Opt | Opts], Inet, Emulated) ->
-    validate_inet_option(header, Value),
-    emulated_options(Opts, Inet,  [Opt | proplists:delete(header, Emulated)]);
-emulated_options([{active, Value} = Opt |Opts], Inet, Emulated) ->
-    validate_inet_option(active, Value),
-    emulated_options(Opts, Inet, [Opt | proplists:delete(active, Emulated)]);
-emulated_options([{packet, Value} = Opt |Opts], Inet, Emulated) ->
-    validate_inet_option(packet, Value),
-    emulated_options(Opts, Inet, [Opt | proplists:delete(packet, Emulated)]);
-emulated_options([{packet_size, Value} = Opt | Opts], Inet, Emulated) ->
-    validate_inet_option(packet_size, Value),
-    emulated_options(Opts, Inet, [Opt | proplists:delete(packet_size, Emulated)]);
-emulated_options([Opt|Opts], Inet, Emulated) ->
-    emulated_options(Opts, [Opt|Inet], Emulated);
-emulated_options([], Inet,Emulated) ->
-    {Inet, Emulated}.
-
 handle_cipher_option(Value, Version)  when is_list(Value) ->
     try binary_cipher_suites(Version, Value) of
 	Suites ->
@@ -1205,7 +1167,7 @@ binary_cipher_suites(Version, [Head | _] = Ciphers0) when is_list(Head) ->
     binary_cipher_suites(Version, Ciphers);
 binary_cipher_suites(Version, Ciphers0)  ->
     %% Format: "RC4-SHA:RC4-MD5"
-    Ciphers = [ssl_cipher:openssl_suite(C) || C <- string:tokens(Ciphers0, ":")],
+    Ciphers = [ssl_cipher:openssl_suite(C) || C <- string:lexemes(Ciphers0, ":")],
     binary_cipher_suites(Version, Ciphers).
 
 handle_eccs_option(Value, Version) when is_list(Value) ->
diff --git a/lib/ssl/src/ssl_alert.erl b/lib/ssl/src/ssl_alert.erl
index 2749feb1eb..95ab955ad0 100644
--- a/lib/ssl/src/ssl_alert.erl
+++ b/lib/ssl/src/ssl_alert.erl
@@ -32,7 +32,7 @@
 -include("ssl_record.hrl").
 -include("ssl_internal.hrl").
 
--export([decode/1, alert_txt/1, reason_code/2]).
+-export([decode/1, own_alert_txt/1, alert_txt/1, reason_code/2]).
 
 %%====================================================================
 %% Internal application API
@@ -57,15 +57,31 @@ decode(Bin) ->
 reason_code(#alert{description = ?CLOSE_NOTIFY}, _) ->
     closed;
 reason_code(#alert{description = Description}, _) ->
-    {tls_alert, string:to_lower(description_txt(Description))}.
+    {tls_alert, string:casefold(description_txt(Description))}.
+
+%%--------------------------------------------------------------------
+-spec own_alert_txt(#alert{}) -> string().
+%%
+%% Description: Returns the error string for given alert generated
+%% by the erlang implementation.
+%%--------------------------------------------------------------------
+own_alert_txt(#alert{level = Level, description = Description, where = {Mod,Line}, reason = undefined, role = Role}) ->
+    "at " ++ Mod ++ ":" ++ integer_to_list(Line) ++ " generated " ++ string:uppercase(atom_to_list(Role)) ++ " ALERT: " ++
+        level_txt(Level) ++ description_txt(Description);
+own_alert_txt(#alert{reason = Reason} = Alert) ->
+    BaseTxt = own_alert_txt(Alert#alert{reason = undefined}),
+    FormatDepth = 9, % Some limit on printed representation of an error
+    ReasonTxt = lists:flatten(io_lib:format("~P", [Reason, FormatDepth])),
+    BaseTxt ++ " - " ++ ReasonTxt.
 
 %%--------------------------------------------------------------------
 -spec alert_txt(#alert{}) -> string().
 %%
-%% Description: Returns the error string for given alert.
+%% Description: Returns the error string for given alert received from
+%% the peer. 
 %%--------------------------------------------------------------------
-alert_txt(#alert{level = Level, description = Description, where = {Mod,Line}, reason = undefined, role = Role}) ->
-    "at " ++ Mod ++ ":" ++ integer_to_list(Line) ++ " " ++ string:to_upper(atom_to_list(Role)) ++ " ALERT: " ++
+alert_txt(#alert{level = Level, description = Description, reason = undefined, role = Role}) ->
+    "received " ++ string:uppercase(atom_to_list(Role)) ++ " ALERT: " ++
         level_txt(Level) ++ description_txt(Description);
 alert_txt(#alert{reason = Reason} = Alert) ->
     BaseTxt = alert_txt(Alert#alert{reason = undefined}),
diff --git a/lib/ssl/src/ssl_certificate.erl b/lib/ssl/src/ssl_certificate.erl
index 0dd5e5c5cf..a3333d35e9 100644
--- a/lib/ssl/src/ssl_certificate.erl
+++ b/lib/ssl/src/ssl_certificate.erl
@@ -138,13 +138,8 @@ validate(_, {bad_cert, _} = Reason, _) ->
     {fail, Reason};
 validate(_, valid, UserState) ->
     {valid, UserState};
-validate(Cert, valid_peer, UserState = {client, _,_, Hostname, _, _}) when Hostname =/= undefined ->
-    case public_key:pkix_verify_hostname(Cert, [{dns_id, Hostname}]) of
-        true ->
-            {valid, UserState};
-        false ->
-            {fail, {bad_cert, hostname_check_failed}}
-    end;
+validate(Cert, valid_peer, UserState = {client, _,_, Hostname, _, _}) when Hostname =/= disable ->
+    verify_hostname(Hostname, Cert, UserState);  
 validate(_, valid_peer, UserState) ->    
    {valid, UserState}.
 
@@ -337,3 +332,32 @@ new_trusteded_chain(DerCert, [_ | Rest]) ->
     new_trusteded_chain(DerCert, Rest);
 new_trusteded_chain(_, []) ->
     unknown_ca.
+
+verify_hostname({fallback, Hostname}, Cert, UserState) when is_list(Hostname) ->
+    case public_key:pkix_verify_hostname(Cert, [{dns_id, Hostname}]) of
+        true ->
+            {valid, UserState};
+        false ->
+            case public_key:pkix_verify_hostname(Cert, [{ip, Hostname}]) of
+                true ->
+                    {valid, UserState};
+                false ->
+                    {fail, {bad_cert, hostname_check_failed}}
+            end
+    end;
+
+verify_hostname({fallback, Hostname}, Cert, UserState) ->
+    case public_key:pkix_verify_hostname(Cert, [{ip, Hostname}]) of
+        true ->
+            {valid, UserState};
+        false ->
+            {fail, {bad_cert, hostname_check_failed}}
+    end;
+
+verify_hostname(Hostname, Cert, UserState) ->
+    case public_key:pkix_verify_hostname(Cert, [{dns_id, Hostname}]) of
+        true ->
+            {valid, UserState};
+        false ->
+            {fail, {bad_cert, hostname_check_failed}}
+    end.
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl
index 5c6e755293..d83c9cb59f 100644
--- a/lib/ssl/src/ssl_connection.erl
+++ b/lib/ssl/src/ssl_connection.erl
@@ -44,12 +44,14 @@
 -export([send/2, recv/3, close/2, shutdown/2,
 	 new_user/2, get_opts/2, set_opts/2, 
 	 peer_certificate/1, renegotiation/1, negotiated_protocol/1, prf/5,
+         get_sslsocket/1, handshake_complete/3,
 	 connection_information/2, handle_common_event/5
 	]).
 
 %% General gen_statem state functions with extra callback argument 
 %% to determine if it is an SSL/TLS or DTLS gen_statem machine
--export([init/4, hello/4, abbreviated/4, certify/4, cipher/4, connection/4, downgrade/4]).
+-export([init/4, hello/4, abbreviated/4, certify/4, cipher/4,
+         connection/4, death_row/4, downgrade/4]).
 
 %% gen_statem callbacks
 -export([terminate/3, format_status/2]).
@@ -262,6 +264,13 @@ peer_certificate(ConnectionPid) ->
 renegotiation(ConnectionPid) ->
     call(ConnectionPid, renegotiate). 
 
+
+get_sslsocket(ConnectionPid) ->
+    call(ConnectionPid, get_sslsocket).
+
+handshake_complete(ConnectionPid, Node, DHandle) ->
+    call(ConnectionPid, {handshake_complete, Node, DHandle}).
+
 %%--------------------------------------------------------------------
 -spec prf(pid(), binary() | 'master_secret', binary(),
 	  [binary() | ssl:prf_random()], non_neg_integer()) ->
@@ -359,6 +368,12 @@ init({call, From}, {start, {Opts, EmOpts}, Timeout},
             socket_options = SockOpts} = State0, Connection) ->
     try 
         SslOpts = ssl:handle_options(Opts, OrigSSLOptions),
+        case SslOpts of
+            #ssl_options{erl_dist = true} ->
+                process_flag(priority, max);
+            _ ->
+                ok
+        end,
 	State = ssl_config(SslOpts, Role, State0),
 	init({call, From}, {start, Timeout}, 
 	     State#state{ssl_options = SslOpts, socket_options = new_emulated(EmOpts, SockOpts)}, Connection)
@@ -366,7 +381,7 @@ init({call, From}, {start, {Opts, EmOpts}, Timeout},
 	    {stop_and_reply, normal, {reply, From, {error, Error}}}
     end;
 init({call, From}, Msg, State, Connection) ->
-    handle_call(Msg, From, init, State, Connection);
+    handle_call(Msg, From, ?FUNCTION_NAME, State, Connection);
 init(_Type, _Event, _State, _Connection) ->
     {keep_state_and_data, [postpone]}.
 	
@@ -377,13 +392,13 @@ init(_Type, _Event, _State, _Connection) ->
 		   gen_statem:state_function_result().
 %%--------------------------------------------------------------------
 hello({call, From}, Msg, State, Connection) ->
-    handle_call(Msg, From, hello, State, Connection);
+    handle_call(Msg, From, ?FUNCTION_NAME, State, Connection);
 hello(internal, {common_client_hello, Type, ServerHelloExt}, State, Connection) ->
     do_server_hello(Type, ServerHelloExt, State, Connection);
 hello(info, Msg, State, _) ->
-    handle_info(Msg, hello, State);
+    handle_info(Msg, ?FUNCTION_NAME, State);
 hello(Type, Msg, State, Connection) ->
-    handle_common_event(Type, Msg, hello, State, Connection).
+    handle_common_event(Type, Msg, ?FUNCTION_NAME, State, Connection).
 
 %%--------------------------------------------------------------------
 -spec abbreviated(gen_statem:event_type(),
@@ -392,7 +407,7 @@ hello(Type, Msg, State, Connection) ->
 			 gen_statem:state_function_result().
 %%--------------------------------------------------------------------
 abbreviated({call, From}, Msg, State, Connection) ->
-    handle_call(Msg, From, abbreviated, State, Connection);
+    handle_call(Msg, From, ?FUNCTION_NAME, State, Connection);
 
 abbreviated(internal, #finished{verify_data = Data} = Finished,
 	    #state{role = server,
@@ -412,7 +427,7 @@ abbreviated(internal, #finished{verify_data = Data} = Finished,
 							      expecting_finished = false}, Connection),
 	    Connection:next_event(connection, Record, State);
 	#alert{} = Alert ->
-	    handle_own_alert(Alert, Version, abbreviated, State0)
+	    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0)
     end;
 
 abbreviated(internal, #finished{verify_data = Data} = Finished,
@@ -428,11 +443,11 @@ abbreviated(internal, #finished{verify_data = Data} = Finished,
 		ssl_record:set_server_verify_data(current_read, Data, ConnectionStates0),
 	    {State1, Actions} =
 		finalize_handshake(State0#state{connection_states = ConnectionStates1},
-				   abbreviated, Connection),
+				   ?FUNCTION_NAME, Connection),
 	    {Record, State} = prepare_connection(State1#state{expecting_finished = false}, Connection),
 	    Connection:next_event(connection, Record, State, Actions);
 	#alert{} = Alert ->
-	    handle_own_alert(Alert, Version, abbreviated, State0)
+	    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0)
     end;
 
 %% only allowed to send next_protocol message after change cipher spec
@@ -442,20 +457,20 @@ abbreviated(internal, #next_protocol{selected_protocol = SelectedProtocol},
 	    Connection) ->
     {Record, State} =
 	Connection:next_record(State0#state{negotiated_protocol = SelectedProtocol}),
-    Connection:next_event(abbreviated, Record, 
+    Connection:next_event(?FUNCTION_NAME, Record, 
 			  State#state{expecting_next_protocol_negotiation = false});
 abbreviated(internal, 
 	    #change_cipher_spec{type = <<1>>},  #state{connection_states = ConnectionStates0} =
 		State0, Connection) ->
     ConnectionStates1 =
-	ssl_record:activate_pending_connection_state(ConnectionStates0, read),
+	ssl_record:activate_pending_connection_state(ConnectionStates0, read, Connection),
     {Record, State} = Connection:next_record(State0#state{connection_states = 
 							      ConnectionStates1}),
-    Connection:next_event(abbreviated, Record, State#state{expecting_finished = true});
+    Connection:next_event(?FUNCTION_NAME, Record, State#state{expecting_finished = true});
 abbreviated(info, Msg, State, _) ->
-    handle_info(Msg, abbreviated, State);
+    handle_info(Msg, ?FUNCTION_NAME, State);
 abbreviated(Type, Msg, State, Connection) ->
-    handle_common_event(Type, Msg, abbreviated, State, Connection).
+    handle_common_event(Type, Msg, ?FUNCTION_NAME, State, Connection).
  
 %%--------------------------------------------------------------------
 -spec certify(gen_statem:event_type(),
@@ -465,16 +480,16 @@ abbreviated(Type, Msg, State, Connection) ->
 		     gen_statem:state_function_result().
 %%--------------------------------------------------------------------
 certify({call, From}, Msg, State, Connection) ->
-    handle_call(Msg, From, certify, State, Connection);
+    handle_call(Msg, From, ?FUNCTION_NAME, State, Connection);
 certify(info, Msg, State, _) ->
-    handle_info(Msg, certify, State);
+    handle_info(Msg, ?FUNCTION_NAME, State);
 certify(internal, #certificate{asn1_certificates = []},
 	#state{role = server, negotiated_version = Version,
 	       ssl_options = #ssl_options{verify = verify_peer,
 					  fail_if_no_peer_cert = true}} =
 	    State, _) ->
     Alert =  ?ALERT_REC(?FATAL,?HANDSHAKE_FAILURE),
-    handle_own_alert(Alert, Version, certify, State);
+    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State);
 
 certify(internal, #certificate{asn1_certificates = []},
 	#state{role = server,
@@ -483,7 +498,7 @@ certify(internal, #certificate{asn1_certificates = []},
 	State0, Connection) ->
     {Record, State} = 
 	Connection:next_record(State0#state{client_certificate_requested = false}),
-    Connection:next_event(certify, Record, State);
+    Connection:next_event(?FUNCTION_NAME, Record, State);
 
 certify(internal, #certificate{},
 	#state{role = server,
@@ -491,22 +506,23 @@ certify(internal, #certificate{},
 	       ssl_options = #ssl_options{verify = verify_none}} =
 	    State, _) ->
     Alert =  ?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE, unrequested_certificate),
-    handle_own_alert(Alert, Version, certify, State);
+    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State);
 
 certify(internal, #certificate{} = Cert,
         #state{negotiated_version = Version,
 	       role = Role,
+               host = Host,
 	       cert_db = CertDbHandle,
 	       cert_db_ref = CertDbRef,
 	       crl_db = CRLDbInfo,
 	       ssl_options = Opts} = State, Connection) ->
     case ssl_handshake:certify(Cert, CertDbHandle, CertDbRef, 
-			       Opts, CRLDbInfo, Role) of
+			       Opts, CRLDbInfo, Role, Host) of
         {PeerCert, PublicKeyInfo} ->
 	    handle_peer_cert(Role, PeerCert, PublicKeyInfo,
 			     State#state{client_certificate_requested = false}, Connection);
 	#alert{} = Alert ->
-            handle_own_alert(Alert, Version, certify, State)
+            handle_own_alert(Alert, Version, ?FUNCTION_NAME, State)
     end;
 
 certify(internal, #server_key_exchange{exchange_keys = Keys},
@@ -538,7 +554,7 @@ certify(internal, #server_key_exchange{exchange_keys = Keys},
 				     Connection);
 		false ->
 		    handle_own_alert(?ALERT_REC(?FATAL, ?DECRYPT_ERROR),
-						Version, certify, State)
+						Version, ?FUNCTION_NAME, State)
 	    end
     end;
 
@@ -558,10 +574,10 @@ certify(internal, #certificate_request{} = CertRequest,
 	       negotiated_version = Version} = State0, Connection) ->
     case ssl_handshake:select_hashsign(CertRequest, Cert, SupportedHashSigns, ssl:tls_version(Version)) of
 	#alert {} = Alert ->
-	    handle_own_alert(Alert, Version, certify, State0);
+	    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0);
 	NegotiatedHashSign -> 
 	    {Record, State} = Connection:next_record(State0#state{client_certificate_requested = true}),
-	    Connection:next_event(certify, Record,
+	    Connection:next_event(?FUNCTION_NAME, Record,
 				  State#state{cert_hashsign_algorithm = NegotiatedHashSign})
     end;
 
@@ -577,7 +593,7 @@ certify(internal, #server_hello_done{},
   when Alg == psk ->
     case ssl_handshake:premaster_secret({Alg, PSKIdentity}, PSKLookup) of
 	#alert{} = Alert ->
-	    handle_own_alert(Alert, Version, certify, State0);
+	    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0);
 	PremasterSecret ->
 	    State = master_secret(PremasterSecret,
 				  State0#state{premaster_secret = PremasterSecret}),
@@ -598,7 +614,7 @@ certify(internal, #server_hello_done{},
     case ssl_handshake:premaster_secret({Alg, PSKIdentity}, PSKLookup, 
 					RSAPremasterSecret) of
 	#alert{} = Alert ->
-	    handle_own_alert(Alert, Version, certify, State0);
+	    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0);
 	PremasterSecret ->
 	    State = master_secret(PremasterSecret, 
 				  State0#state{premaster_secret = RSAPremasterSecret}),
@@ -618,7 +634,7 @@ certify(internal, #server_hello_done{},
 	    State = State0#state{connection_states = ConnectionStates},
 	    client_certify_and_key_exchange(State, Connection);
 	#alert{} = Alert ->
-	    handle_own_alert(Alert, Version, certify, State0)
+	    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0)
     end;
 
 %% Master secret is calculated from premaster_secret
@@ -636,7 +652,7 @@ certify(internal, #server_hello_done{},
 				 session = Session},
 	    client_certify_and_key_exchange(State, Connection);
 	#alert{} = Alert ->
-	    handle_own_alert(Alert, Version, certify, State0)
+	    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0)
     end;
 
 certify(internal = Type, #client_key_exchange{} = Msg,
@@ -645,7 +661,7 @@ certify(internal = Type, #client_key_exchange{} = Msg,
 	       ssl_options = #ssl_options{fail_if_no_peer_cert = true}} = State, 
 	Connection) ->
     %% We expect a certificate here
-    handle_common_event(Type, Msg, certify, State, Connection);
+    handle_common_event(Type, Msg, ?FUNCTION_NAME, State, Connection);
 
 certify(internal, #client_key_exchange{exchange_keys = Keys},
 	State = #state{key_algorithm = KeyAlg, negotiated_version = Version}, Connection) ->
@@ -654,11 +670,11 @@ certify(internal, #client_key_exchange{exchange_keys = Keys},
 				    State, Connection)
     catch
 	#alert{} = Alert ->
-	    handle_own_alert(Alert, Version, certify, State)
+	    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State)
     end;
 
 certify(Type, Msg, State, Connection) ->
-    handle_common_event(Type, Msg, certify, State, Connection).
+    handle_common_event(Type, Msg, ?FUNCTION_NAME, State, Connection).
  
 %%--------------------------------------------------------------------
 -spec cipher(gen_statem:event_type(),
@@ -667,10 +683,10 @@ certify(Type, Msg, State, Connection) ->
 		    gen_statem:state_function_result().
 %%--------------------------------------------------------------------
 cipher({call, From}, Msg, State, Connection) ->
-    handle_call(Msg, From, cipher, State, Connection);
+    handle_call(Msg, From, ?FUNCTION_NAME, State, Connection);
 
 cipher(info, Msg, State, _) ->
-    handle_info(Msg, cipher, State);
+    handle_info(Msg, ?FUNCTION_NAME, State);
 
 cipher(internal, #certificate_verify{signature = Signature, 
 				     hashsign_algorithm = CertHashSign},
@@ -689,10 +705,10 @@ cipher(internal, #certificate_verify{signature = Signature,
 					  TLSVersion, HashSign, MasterSecret, Handshake) of
 	valid ->
 	    {Record, State} = Connection:next_record(State0),
-	    Connection:next_event(cipher, Record,
+	    Connection:next_event(?FUNCTION_NAME, Record,
 				  State#state{cert_hashsign_algorithm = HashSign});
 	#alert{} = Alert ->
-	    handle_own_alert(Alert, Version, cipher, State0)
+	    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0)
     end;
 
 %% client must send a next protocol message if we are expecting it
@@ -700,7 +716,7 @@ cipher(internal, #finished{},
        #state{role = server, expecting_next_protocol_negotiation = true,
 	      negotiated_protocol = undefined, negotiated_version = Version} = State0,
        _Connection) ->
-    handle_own_alert(?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE), Version, cipher, State0);
+    handle_own_alert(?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE), Version, ?FUNCTION_NAME, State0);
 
 cipher(internal, #finished{verify_data = Data} = Finished,
        #state{negotiated_version = Version,
@@ -710,6 +726,7 @@ cipher(internal, #finished{verify_data = Data} = Finished,
 	      expecting_finished = true,
 	      session = #session{master_secret = MasterSecret}
 	      = Session0,
+              ssl_options = SslOpts,
 	      connection_states = ConnectionStates0,
 	      tls_handshake_history = Handshake0} = State, Connection) ->
     case ssl_handshake:verify_connection(ssl:tls_version(Version), Finished,
@@ -717,11 +734,11 @@ cipher(internal, #finished{verify_data = Data} = Finished,
 					 get_current_prf(ConnectionStates0, read),
 					 MasterSecret, Handshake0) of
         verified ->
-	    Session = register_session(Role, Host, Port, Session0),
+	    Session = register_session(Role, host_id(Role, Host, SslOpts), Port, Session0),
 	    cipher_role(Role, Data, Session, 
 			State#state{expecting_finished = false}, Connection);
         #alert{} = Alert ->
-	    handle_own_alert(Alert, Version, cipher, State)
+	    handle_own_alert(Alert, Version, ?FUNCTION_NAME, State)
     end;
 
 %% only allowed to send next_protocol message after change cipher spec
@@ -731,24 +748,24 @@ cipher(internal, #next_protocol{selected_protocol = SelectedProtocol},
 	      expecting_finished = true} = State0, Connection) ->
     {Record, State} = 
 	Connection:next_record(State0#state{negotiated_protocol = SelectedProtocol}),
-    Connection:next_event(cipher, Record, 
+    Connection:next_event(?FUNCTION_NAME, Record, 
 			  State#state{expecting_next_protocol_negotiation = false});
 cipher(internal, #change_cipher_spec{type = <<1>>},  #state{connection_states = ConnectionStates0} =
 	   State0, Connection) ->
     ConnectionStates1 =
-	ssl_record:activate_pending_connection_state(ConnectionStates0, read),
+	ssl_record:activate_pending_connection_state(ConnectionStates0, read, Connection),
     {Record, State} = Connection:next_record(State0#state{connection_states = 
 							      ConnectionStates1}),
-    Connection:next_event(cipher, Record, State#state{expecting_finished = true});
+    Connection:next_event(?FUNCTION_NAME, Record, State#state{expecting_finished = true});
 cipher(Type, Msg, State, Connection) ->
-    handle_common_event(Type, Msg, cipher, State, Connection).
+    handle_common_event(Type, Msg, ?FUNCTION_NAME, State, Connection).
 
 %%--------------------------------------------------------------------
 -spec connection(gen_statem:event_type(), term(), 
 		 #state{}, tls_connection | dtls_connection) ->
 			gen_statem:state_function_result().
 %%--------------------------------------------------------------------
-connection({call, From}, {application_data, Data},  
+connection({call, {FromPid, _} = From}, {application_data, Data},
 	   #state{protocol_cb = Connection} = State, Connection) ->
     %% We should look into having a worker process to do this to 
     %% parallize send and receive decoding and not block the receiver
@@ -756,7 +773,13 @@ connection({call, From}, {application_data, Data},
      try
 	 write_application_data(Data, From, State)
      catch throw:Error ->
-	     hibernate_after(connection, State, [{reply, From, Error}])
+             case self() of
+                 FromPid ->
+                     {stop, {shutdown, Error}};
+                 _ ->
+                     hibernate_after(
+                       ?FUNCTION_NAME, State, [{reply, From, Error}])
+             end
      end;
 connection({call, RecvFrom}, {recv, N, Timeout},  
 	   #state{protocol_cb = Connection,  socket_options =
@@ -764,34 +787,100 @@ connection({call, RecvFrom}, {recv, N, Timeout},
     Timer = start_or_recv_cancel_timer(Timeout, RecvFrom),
     Connection:passive_receive(State0#state{bytes_to_read = N,
 					    start_or_recv_from = RecvFrom, 
-					    timer = Timer}, connection);
+					    timer = Timer}, ?FUNCTION_NAME);
 connection({call, From}, renegotiate, #state{protocol_cb = Connection} = State, 
 	   Connection) ->
     Connection:renegotiate(State#state{renegotiation = {true, From}}, []);
 connection({call, From}, peer_certificate, 
 	   #state{session = #session{peer_certificate = Cert}} = State, _) ->
-    hibernate_after(connection, State, [{reply, From,  {ok, Cert}}]); 
+    hibernate_after(?FUNCTION_NAME, State, [{reply, From,  {ok, Cert}}]); 
 connection({call, From}, {connection_information, true}, State, _) ->
     Info = connection_info(State) ++ security_info(State),
-    hibernate_after(connection, State, [{reply, From, {ok, Info}}]);
+    hibernate_after(?FUNCTION_NAME, State, [{reply, From, {ok, Info}}]);
 connection({call, From}, {connection_information, false}, State, _) ->
     Info = connection_info(State),
-    hibernate_after(connection, State, [{reply, From, {ok, Info}}]);
+    hibernate_after(?FUNCTION_NAME, State, [{reply, From, {ok, Info}}]);
 connection({call, From}, negotiated_protocol, 
 	   #state{negotiated_protocol = undefined} = State, _) ->
-    hibernate_after(connection, State, [{reply, From, {error, protocol_not_negotiated}}]);
+    hibernate_after(?FUNCTION_NAME, State, [{reply, From, {error, protocol_not_negotiated}}]);
 connection({call, From}, negotiated_protocol, 
 	   #state{negotiated_protocol = SelectedProtocol} = State, _) ->
-    hibernate_after(connection, State,
+    hibernate_after(?FUNCTION_NAME, State,
 		    [{reply, From, {ok, SelectedProtocol}}]);
+connection(
+  {call, From}, {handshake_complete, _Node, DHandle},
+  #state{
+     ssl_options = #ssl_options{erl_dist = true},
+     socket_options = SockOpts,
+     protocol_specific = ProtocolSpecific} = State,
+  Connection) ->
+    %% From now on we execute on normal priority
+    process_flag(priority, normal),
+    try erlang:dist_ctrl_get_data_notification(DHandle) of
+        _ ->
+            NewState =
+                State#state{
+                  socket_options =
+                      SockOpts#socket_options{active = true},
+                  protocol_specific =
+                      ProtocolSpecific#{d_handle => DHandle}},
+            {Record, NewerState} = Connection:next_record_if_active(NewState),
+            Connection:next_event(connection, Record, NewerState, [{reply, From, ok}])
+    catch _:Reason ->
+            death_row(State, Reason)
+    end;
 connection({call, From}, Msg, State, Connection) ->
-    handle_call(Msg, From, connection, State, Connection);
+    handle_call(Msg, From, ?FUNCTION_NAME, State, Connection);
+connection(
+  info, dist_data = Msg,
+  #state{
+     ssl_options = #ssl_options{erl_dist = true},
+     protocol_specific = #{d_handle := DHandle}} = State,
+  _) ->
+    eat_msgs(Msg),
+    try send_dist_data(?FUNCTION_NAME, State, DHandle, [])
+    catch _:Reason ->
+            death_row(State, Reason)
+    end;
+connection(
+  info, tick = Msg,
+  #state{
+     ssl_options = #ssl_options{erl_dist = true},
+     protocol_specific = #{d_handle := _}},
+  _) ->
+    eat_msgs(Msg),
+    {keep_state_and_data,
+     [{next_event, {call, {self(), undefined}}, {application_data, <<>>}}]};
 connection(info, Msg, State, _) ->
-    handle_info(Msg, connection, State);
+    handle_info(Msg, ?FUNCTION_NAME, State);
 connection(internal, {recv, _}, State, Connection) ->
-    Connection:passive_receive(State, connection);
+    Connection:passive_receive(State, ?FUNCTION_NAME);
 connection(Type, Msg, State, Connection) ->
-    handle_common_event(Type, Msg, connection, State, Connection).
+    handle_common_event(Type, Msg, ?FUNCTION_NAME, State, Connection).
+
+%%--------------------------------------------------------------------
+-spec death_row(gen_statem:event_type(), term(),
+		#state{}, tls_connection | dtls_connection) ->
+		       gen_statem:state_function_result().
+%%--------------------------------------------------------------------
+%% We just wait for the owner to die which triggers the monitor,
+%% or the socket may die too
+death_row(
+  info, {'DOWN', MonitorRef, _, _, Reason},
+  #state{user_application={MonitorRef,_Pid} = State},
+  _) ->
+    {stop, {shutdown, Reason}, State};
+death_row(
+  info, {'EXIT', Socket, Reason}, #state{socket = Socket} = State, _) ->
+    {stop, {shutdown, Reason}, State};
+death_row(state_timeout, Reason, _State, _Connection) ->
+    {stop, {shutdown,Reason}};
+death_row(_Type, _Msg, State, _Connection) ->
+    {keep_state, State, [postpone]}.
+
+%% State entry function
+death_row(State, Reason) ->
+    {next_state, death_row, State, [{state_timeout, 5000, Reason}]}.
 
 %%--------------------------------------------------------------------
 -spec downgrade(gen_statem:event_type(), term(), 
@@ -804,12 +893,12 @@ downgrade(internal, #alert{description = ?CLOSE_NOTIFY},
     tls_socket:setopts(Transport, Socket, [{active, false}, {packet, 0}, {mode, binary}]),
     Transport:controlling_process(Socket, Pid),
     gen_statem:reply(From, {ok, Socket}),
-    {stop, normal, State};
+    stop_normal(State);
 downgrade(timeout, downgrade, #state{downgrade = {_, From}} = State, _) ->
     gen_statem:reply(From, {error, timeout}),
-    {stop, normal, State};
+    stop_normal(State);
 downgrade(Type, Event, State, Connection) ->
-    handle_common_event(Type, Event, downgrade, State, Connection).
+    handle_common_event(Type, Event, ?FUNCTION_NAME, State, Connection).
 
 %%--------------------------------------------------------------------
 %% Event handling functions called by state functions to handle
@@ -877,7 +966,7 @@ handle_call({shutdown, How0}, From, _,
 	    #state{transport_cb = Transport,
 		   negotiated_version = Version,
 		   connection_states = ConnectionStates,
-		   socket = Socket}, Connection) ->
+		   socket = Socket} = State, Connection) ->
     case How0 of
 	How when How == write; How == both ->	    
 	    Alert = ?ALERT_REC(?WARNING, ?CLOSE_NOTIFY),
@@ -893,7 +982,7 @@ handle_call({shutdown, How0}, From, _,
 	    {keep_state_and_data, [{reply, From, ok}]};
 	Error ->
 	    gen_statem:reply(From, {error, Error}),
-	    {stop, normal}
+            stop_normal(State)
     end;
 handle_call({recv, _N, _Timeout}, From, _,  
 		  #state{socket_options = 
@@ -928,6 +1017,15 @@ handle_call({set_opts, Opts0}, From, StateName,
     
 handle_call(renegotiate, From, StateName, _, _) when StateName =/= connection ->
     {keep_state_and_data, [{reply, From, {error, already_renegotiating}}]};
+
+handle_call(
+  get_sslsocket, From, _StateName,
+  #state{transport_cb = Transport, socket = Socket, tracker = Tracker},
+  Connection) ->
+    SslSocket =
+        Connection:socket(self(), Transport, Socket, Connection, Tracker),
+    {keep_state_and_data, [{reply, From, SslSocket}]};
+
 handle_call({prf, Secret, Label, Seed, WantedLength}, From, _,
 	    #state{connection_states = ConnectionStates,
 		   negotiated_version = Version}, _) ->
@@ -964,18 +1062,19 @@ handle_info({ErrorTag, Socket, econnaborted}, StateName,
 		   tracker = Tracker} = State)  when StateName =/= connection ->
     alert_user(Transport, Tracker,Socket, 
 	       StartFrom, ?ALERT_REC(?FATAL, ?CLOSE_NOTIFY), Role, Connection),
-    {stop, normal, State};
+    stop_normal(State);
 
 handle_info({ErrorTag, Socket, Reason}, StateName, #state{socket = Socket,
 							  error_tag = ErrorTag} = State)  ->
     Report = io_lib:format("SSL: Socket error: ~p ~n", [Reason]),
-    error_logger:info_report(Report),
+    error_logger:error_report(Report),
     handle_normal_shutdown(?ALERT_REC(?FATAL, ?CLOSE_NOTIFY), StateName, State),
-    {stop, normal, State};
+    stop_normal(State);
 
-handle_info({'DOWN', MonitorRef, _, _, _}, _, 
-	    State = #state{user_application={MonitorRef,_Pid}}) ->
-    {stop, normal, State};   
+handle_info(
+  {'DOWN', MonitorRef, _, _, _}, _,
+  #state{user_application={MonitorRef,_Pid}} = State) ->
+    stop_normal(State);
 
 %%% So that terminate will be run when supervisor issues shutdown
 handle_info({'EXIT', _Sup, shutdown}, _StateName, State) ->
@@ -983,6 +1082,8 @@ handle_info({'EXIT', _Sup, shutdown}, _StateName, State) ->
 handle_info({'EXIT', Socket, normal}, _StateName, #state{socket = Socket} = State) ->
     %% Handle as transport close"
     {stop, {shutdown, transport_closed}, State};
+handle_info({'EXIT', Socket, Reason}, _StateName, #state{socket = Socket} = State) ->
+    {stop, {shutdown, Reason}, State};
 
 handle_info(allow_renegotiate, StateName, State) ->
     {next_state, StateName, State#state{allow_renegotiate = true}};
@@ -1006,6 +1107,38 @@ handle_info(Msg, StateName, #state{socket = Socket, error_tag = Tag} = State) ->
     error_logger:info_report(Report),
     {next_state, StateName, State}.
 
+
+
+send_dist_data(StateName, State, DHandle, Acc) ->
+    case erlang:dist_ctrl_get_data(DHandle) of
+        none ->
+            erlang:dist_ctrl_get_data_notification(DHandle),
+            hibernate_after(StateName, State, lists:reverse(Acc));
+        Data ->
+            send_dist_data(
+              StateName, State, DHandle,
+              [{next_event, {call, {self(), undefined}}, {application_data, Data}}
+               |Acc])
+    end.
+
+%% Overload mitigation
+eat_msgs(Msg) ->
+    receive Msg -> eat_msgs(Msg)
+    after 0 -> ok
+    end.
+
+%% When running with erl_dist the stop reason 'normal'
+%% would be too silent and prevent cleanup
+stop_normal(State) ->
+    Reason =
+        case State of
+            #state{ssl_options = #ssl_options{erl_dist = true}} ->
+                {shutdown, normal};
+            _ ->
+                normal
+        end,
+    {stop, Reason, State}.
+
 %%--------------------------------------------------------------------
 %% gen_statem callbacks
 %%--------------------------------------------------------------------
@@ -1080,7 +1213,7 @@ format_status(terminate, [_, StateName, State]) ->
 %%--------------------------------------------------------------------
 %%% 
 %%--------------------------------------------------------------------
-write_application_data(Data0, From, 
+write_application_data(Data0, {FromPid, _} = From,
 		       #state{socket = Socket,
 			      negotiated_version = Version,
 			      protocol_cb = Connection,
@@ -1095,10 +1228,19 @@ write_application_data(Data0, From,
 	    Connection:renegotiate(State#state{renegotiation = {true, internal}}, 
 			[{next_event, {call, From}, {application_data, Data0}}]);
 	false ->
-	    {Msgs, ConnectionStates} = Connection:encode_data(Data, Version, ConnectionStates0),
-	    Result = Connection:send(Transport, Socket, Msgs),
-	        ssl_connection:hibernate_after(connection, State#state{connection_states = ConnectionStates}, 
-					       [{reply, From, Result}])
+	    {Msgs, ConnectionStates} =
+                Connection:encode_data(Data, Version, ConnectionStates0),
+            NewState = State#state{connection_states = ConnectionStates},
+	    case Connection:send(Transport, Socket, Msgs) of
+                ok when FromPid =:= self() ->
+                    hibernate_after(connection, NewState, []);
+                Error when FromPid =:= self() ->
+                    {stop, {shutdown, Error}, NewState};
+                ok ->
+                    hibernate_after(connection, NewState, [{reply, From, ok}]);
+                Result ->
+                    hibernate_after(connection, NewState, [{reply, From, Result}])
+            end
     end.
 
 read_application_data(Data, #state{user_application = {_Mon, Pid},
@@ -1118,30 +1260,57 @@ read_application_data(Data, #state{user_application = {_Mon, Pid},
 	      end,
     case get_data(SOpts, BytesToRead, Buffer1) of
 	{ok, ClientData, Buffer} -> % Send data
-	    SocketOpt = deliver_app_data(Transport, Socket, SOpts, 
-					 ClientData, Pid, RecvFrom, Tracker, Connection),
-	    cancel_timer(Timer),
-	    State = State0#state{user_data_buffer = Buffer,
-				 start_or_recv_from = undefined,
-				 timer = undefined,
-				 bytes_to_read = undefined,
-				 socket_options = SocketOpt 
-				},
-	    if
-		SocketOpt#socket_options.active =:= false; Buffer =:= <<>> -> 
-		    %% Passive mode, wait for active once or recv
-		    %% Active and empty, get more data
-		    Connection:next_record_if_active(State);
-	 	true -> %% We have more data
- 		    read_application_data(<<>>, State)
-	    end;
+            case State0 of
+                #state{
+                   ssl_options = #ssl_options{erl_dist = true},
+                  protocol_specific = #{d_handle := DHandle}} ->
+                    State =
+                        State0#state{
+                          user_data_buffer = Buffer,
+                          bytes_to_read = undefined},
+                    try erlang:dist_ctrl_put_data(DHandle, ClientData) of
+                        _
+                          when SOpts#socket_options.active =:= false;
+                               Buffer =:= <<>> ->
+                            %% Passive mode, wait for active once or recv
+                            %% Active and empty, get more data
+                            Connection:next_record_if_active(State);
+                        _ -> %% We have more data
+                            read_application_data(<<>>, State)
+                    catch _:Reason ->
+                            death_row(State, Reason)
+                    end;
+                _ ->
+                    SocketOpt =
+                        deliver_app_data(
+                          Transport, Socket, SOpts,
+                          ClientData, Pid, RecvFrom, Tracker, Connection),
+                    cancel_timer(Timer),
+                    State =
+                        State0#state{
+                          user_data_buffer = Buffer,
+                          start_or_recv_from = undefined,
+                          timer = undefined,
+                          bytes_to_read = undefined,
+                          socket_options = SocketOpt
+                         },
+                    if
+                        SocketOpt#socket_options.active =:= false;
+                        Buffer =:= <<>> ->
+                            %% Passive mode, wait for active once or recv
+                            %% Active and empty, get more data
+                            Connection:next_record_if_active(State);
+                        true -> %% We have more data
+                            read_application_data(<<>>, State)
+                    end
+            end;
 	{more, Buffer} -> % no reply, we need more data
 	    Connection:next_record(State0#state{user_data_buffer = Buffer});
 	{passive, Buffer} ->
 	    Connection:next_record_if_active(State0#state{user_data_buffer = Buffer});
 	{error,_Reason} -> %% Invalid packet in packet mode
 	    deliver_packet_error(Transport, Socket, SOpts, Buffer1, Pid, RecvFrom, Tracker, Connection),
-	    {stop, normal, State0}
+            stop_normal(State0)
     end.
 %%--------------------------------------------------------------------
 %%% 
@@ -1151,11 +1320,12 @@ handle_alert(#alert{level = ?FATAL} = Alert, StateName,
 		    protocol_cb = Connection,
 		    ssl_options = SslOpts, start_or_recv_from = From, host = Host,
 		    port = Port, session = Session, user_application = {_Mon, Pid},
-		    role = Role, socket_options = Opts, tracker = Tracker}) ->
+		    role = Role, socket_options = Opts, tracker = Tracker} = State) ->
     invalidate_session(Role, Host, Port, Session),
-    log_alert(SslOpts#ssl_options.log_alert,  Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}),
+    log_alert(SslOpts#ssl_options.log_alert, Role, Connection:protocol_name(), 
+              StateName, Alert#alert{role = opposite_role(Role)}),
     alert_user(Transport, Tracker, Socket, StateName, Opts, Pid, From, Alert, Role, Connection),
-    {stop, normal};
+    stop_normal(State);
 
 handle_alert(#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} = Alert, 
 	     StateName, State) -> 
@@ -1164,7 +1334,8 @@ handle_alert(#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} = Alert,
 
 handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, StateName, 
 	     #state{role = Role, ssl_options = SslOpts, protocol_cb = Connection, renegotiation = {true, internal}} = State) ->
-    log_alert(SslOpts#ssl_options.log_alert, Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}),
+    log_alert(SslOpts#ssl_options.log_alert, Role, 
+              Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}),
     handle_normal_shutdown(Alert, StateName, State),
     {stop, {shutdown, peer_close}};
 
@@ -1172,16 +1343,19 @@ handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert,
 	     #state{role = Role,
                     ssl_options = SslOpts, renegotiation = {true, From},
 		    protocol_cb = Connection} = State0) ->
-    log_alert(SslOpts#ssl_options.log_alert,  Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}),
+    log_alert(SslOpts#ssl_options.log_alert,  Role,
+              Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}),
     gen_statem:reply(From, {error, renegotiation_rejected}),
-    {Record, State} = Connection:next_record(State0),
+    {Record, State1} = Connection:next_record(State0),
     %% Go back to connection!
+    State = Connection:reinit_handshake_data(State1#state{renegotiation = undefined}),
     Connection:next_event(connection, Record, State);
 
 %% Gracefully log and ignore all other warning alerts
 handle_alert(#alert{level = ?WARNING} = Alert, StateName,
 	     #state{ssl_options = SslOpts, protocol_cb = Connection, role = Role} = State0) ->
-    log_alert(SslOpts#ssl_options.log_alert,  Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}),
+    log_alert(SslOpts#ssl_options.log_alert,  Role,
+              Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}),
     {Record, State} = Connection:next_record(State0),
     Connection:next_event(StateName, Record, State).
 
@@ -1776,7 +1950,7 @@ finalize_handshake(State0, StateName, Connection) ->
 
     ConnectionStates =
         ssl_record:activate_pending_connection_state(ConnectionStates0,
-                                                     write),
+                                                     write, Connection),
 
     State2 = State1#state{connection_states = ConnectionStates},
     State = next_protocol(State2, Connection),
@@ -2164,6 +2338,11 @@ register_session(server, _, Port, #session{is_resumable = new} = Session0) ->
 register_session(_, _, _, Session) ->
     Session. %% Already registered
 
+host_id(client, _Host, #ssl_options{server_name_indication = Hostname}) when is_list(Hostname) ->
+    Hostname;
+host_id(_, Host, _) ->
+    Host.
+
 handle_new_session(NewId, CipherSuite, Compression, 
 		   #state{session = Session0,
 			  protocol_cb = Connection} = State0) ->
@@ -2444,10 +2623,13 @@ alert_user(Transport, Tracker, Socket, Active, Pid, From, Alert, Role, Connectio
 							Transport, Socket, Connection, Tracker), ReasonCode})
     end.
 
-log_alert(true, ProtocolName, StateName, Alert) ->
+log_alert(true, Role, ProtocolName, StateName, #alert{role = Role} = Alert) ->
+    Txt = ssl_alert:own_alert_txt(Alert),
+    error_logger:info_report(io_lib:format("~s ~p: In state ~p ~s\n", [ProtocolName, Role, StateName, Txt]));
+log_alert(true, Role, ProtocolName, StateName, Alert) ->
     Txt = ssl_alert:alert_txt(Alert),
-    error_logger:format("~s: In state ~p ~s\n", [ProtocolName, StateName, Txt]);
-log_alert(false, _, _, _) ->
+    error_logger:info_report(io_lib:format("~s ~p: In state ~p ~s\n", [ProtocolName, Role, StateName, Txt]));
+log_alert(false, _, _, _, _) ->
     ok.
 
 handle_own_alert(Alert, Version, StateName, 
@@ -2465,7 +2647,7 @@ handle_own_alert(Alert, Version, StateName,
 	    ignore
     end,
     try %% Try to tell the local user
-	log_alert(SslOpts#ssl_options.log_alert, Connection:protocol_name(), StateName, Alert#alert{role = Role}),
+	log_alert(SslOpts#ssl_options.log_alert, Role, Connection:protocol_name(), StateName, Alert#alert{role = Role}),
 	handle_normal_shutdown(Alert,StateName, State)
     catch _:_ ->
 	    ok
diff --git a/lib/ssl/src/ssl_crl_cache.erl b/lib/ssl/src/ssl_crl_cache.erl
index 86c0207515..8817b0c884 100644
--- a/lib/ssl/src/ssl_crl_cache.erl
+++ b/lib/ssl/src/ssl_crl_cache.erl
@@ -94,7 +94,7 @@ delete({der, CRLs}) ->
 delete(URI) ->
     case http_uri:parse(URI) of
 	{ok, {http, _, _ , _, Path,_}} -> 
-	    ssl_manager:delete_crls(string:strip(Path, left, $/));
+	    ssl_manager:delete_crls(string:trim(Path, leading, "/"));
 	_ ->
 	    {error, {only_http_distribution_points_supported, URI}}
     end.
@@ -105,7 +105,7 @@ delete(URI) ->
 do_insert(URI, CRLs) ->
     case http_uri:parse(URI) of
 	{ok, {http, _, _ , _, Path,_}} -> 
-	    ssl_manager:insert_crls(string:strip(Path, left, $/), CRLs);
+	    ssl_manager:insert_crls(string:trim(Path, leading, "/"), CRLs);
 	_ ->
 	    {error, {only_http_distribution_points_supported, URI}}
     end.
@@ -162,7 +162,7 @@ cache_lookup(_, undefined) ->
     [];
 cache_lookup(URL, {{Cache, _}, _}) ->
     {ok, {_, _, _ , _, Path,_}} = http_uri:parse(URL), 
-    case ssl_pkix_db:lookup(string:strip(Path, left, $/), Cache) of
+    case ssl_pkix_db:lookup(string:trim(Path, leading, "/"), Cache) of
 	undefined ->
 	    [];
 	CRLs ->
diff --git a/lib/ssl/src/ssl_dist_sup.erl b/lib/ssl/src/ssl_dist_sup.erl
index 690b896919..c241a9bced 100644
--- a/lib/ssl/src/ssl_dist_sup.erl
+++ b/lib/ssl/src/ssl_dist_sup.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2011-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2011-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -46,8 +46,7 @@ start_link() ->
 init([]) ->    
     AdminSup = ssl_admin_child_spec(),
     ConnectionSup = ssl_connection_sup(),
-    ProxyServer = proxy_server_child_spec(),
-    {ok, {{one_for_all, 10, 3600}, [AdminSup, ProxyServer, ConnectionSup]}}.
+    {ok, {{one_for_all, 10, 3600}, [AdminSup, ConnectionSup]}}.
 
 %%--------------------------------------------------------------------
 %%% Internal functions
@@ -69,12 +68,3 @@ ssl_connection_sup() ->
     Modules = [ssl_connection_sup],
     Type = supervisor,
     {Name, StartFunc, Restart, Shutdown, Type, Modules}.
-
-proxy_server_child_spec() ->
-    Name = ssl_tls_dist_proxy,  
-    StartFunc = {ssl_tls_dist_proxy, start_link, []},
-    Restart = permanent, 
-    Shutdown = 4000,
-    Modules = [ssl_tls_dist_proxy],
-    Type = worker,
-    {Name, StartFunc, Restart, Shutdown, Type, Modules}.
diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl
index fc4181a760..81d38a38e4 100644
--- a/lib/ssl/src/ssl_handshake.erl
+++ b/lib/ssl/src/ssl_handshake.erl
@@ -50,7 +50,7 @@
 	 finished/5,  next_protocol/1]).
 
 %% Handle handshake messages
--export([certify/6, client_certificate_verify/6, certificate_verify/6, verify_signature/5,
+-export([certify/7, client_certificate_verify/6, certificate_verify/6, verify_signature/5,
 	 master_secret/4, server_key_exchange_hash/2, verify_connection/6,
 	 init_handshake_history/0, update_handshake_history/3, verify_server_key/5
 	]).
@@ -407,21 +407,21 @@ verify_signature(_, Hash, {HashAlgo, _SignAlg}, Signature,
 
 %%--------------------------------------------------------------------
 -spec certify(#certificate{}, db_handle(), certdb_ref(), #ssl_options{}, term(),
-	      client | server) ->  {der_cert(), public_key_info()} | #alert{}.
+	      client | server, inet:hostname() | inet:ip_address()) ->  {der_cert(), public_key_info()} | #alert{}.
 %%
 %% Description: Handles a certificate handshake message
 %%--------------------------------------------------------------------
 certify(#certificate{asn1_certificates = ASN1Certs}, CertDbHandle, CertDbRef,
-        Opts, CRLDbHandle, Role) ->    
+        Opts, CRLDbHandle, Role, Host) ->    
 
+    ServerName = server_name(Opts#ssl_options.server_name_indication, Host, Role),
     [PeerCert | _] = ASN1Certs,       
     try
 	{TrustedCert, CertPath}  =
 	    ssl_certificate:trusted_cert_and_path(ASN1Certs, CertDbHandle, CertDbRef,  
                                                   Opts#ssl_options.partial_chain),
         ValidationFunAndState = validation_fun_and_state(Opts#ssl_options.verify_fun, Role, 
-                                                         CertDbHandle, CertDbRef,  
-                                                         Opts#ssl_options.server_name_indication,
+                                                         CertDbHandle, CertDbRef, ServerName,
                                                          Opts#ssl_options.crl_check, CRLDbHandle, CertPath),
 	case public_key:pkix_path_validation(TrustedCert,
 					     CertPath,
@@ -1584,6 +1584,8 @@ select_shared_curve([Curve | Rest], Curves) ->
 
 sni(undefined) ->
     undefined;
+sni(disable) ->
+    undefined;
 sni(Hostname) ->
     #sni{hostname = Hostname}.
 
@@ -2434,3 +2436,9 @@ available_signature_algs(#hash_sign_algos{hash_sign_algos = ClientHashSigns}, Su
 available_signature_algs(_, _, _, _) -> 
     undefined.
 
+server_name(_, _, server) ->
+    undefined; %% Not interesting to check your own name.
+server_name(undefined, Host, client) ->
+    {fallback, Host}; %% Fallback to Host argument to connect
+server_name(SNI, _, client) ->
+    SNI. %% If Server Name Indication is available
diff --git a/lib/ssl/src/ssl_manager.erl b/lib/ssl/src/ssl_manager.erl
index ca9aaf4660..f44fe6a2bf 100644
--- a/lib/ssl/src/ssl_manager.erl
+++ b/lib/ssl/src/ssl_manager.erl
@@ -78,7 +78,7 @@
 name(normal) ->
     ?MODULE;
 name(dist) ->
-    list_to_atom(atom_to_list(?MODULE) ++ "dist").
+    list_to_atom(atom_to_list(?MODULE) ++ "_dist").
 
 %%--------------------------------------------------------------------
 -spec start_link(list()) -> {ok, pid()} | ignore | {error, term()}.
@@ -563,7 +563,7 @@ server_register_session(Port, Session, #state{session_cache_server_max = Max,
 
 do_register_session(Key, Session, Max, Pid, Cache, CacheCb) ->
     try CacheCb:size(Cache) of
-	Max ->
+	Size when Size >= Max ->
 	    invalidate_session_cache(Pid, CacheCb, Cache);
 	_ ->	
 	    CacheCb:update(Cache, Key, Session),
diff --git a/lib/ssl/src/ssl_pem_cache.erl b/lib/ssl/src/ssl_pem_cache.erl
index 6cc0729208..115ab4451d 100644
--- a/lib/ssl/src/ssl_pem_cache.erl
+++ b/lib/ssl/src/ssl_pem_cache.erl
@@ -65,7 +65,7 @@
 name(normal) ->
     ?MODULE;
 name(dist) ->
-    list_to_atom(atom_to_list(?MODULE) ++ "dist").
+    list_to_atom(atom_to_list(?MODULE) ++ "_dist").
 
 %%--------------------------------------------------------------------
 -spec start_link(list()) -> {ok, pid()} | ignore | {error, term()}.
diff --git a/lib/ssl/src/ssl_pkix_db.erl b/lib/ssl/src/ssl_pkix_db.erl
index b28636569d..8828c3a0d8 100644
--- a/lib/ssl/src/ssl_pkix_db.erl
+++ b/lib/ssl/src/ssl_pkix_db.erl
@@ -76,10 +76,17 @@ remove(Dbs) ->
 			  true = ets:delete(Db1);
 		     (undefined) -> 
 			  ok;
-		     (ssl_pem_cache) -> 
-			  ok;
-                     (ssl_pem_cache_dist) -> 
-			  ok;
+                     (Name) when is_atom(Name) ->
+                          NormalName = ssl_pem_cache:name(normal),
+                          DistName = ssl_pem_cache:name(dist),
+                          case Name of
+                              NormalName ->
+                                  ok;
+                              DistName -> 
+                                  ok;
+                              _ ->
+                                  true = ets:delete(Name)
+                          end;
 		     (Db) ->
 			  true = ets:delete(Db)
 		  end, Dbs).
diff --git a/lib/ssl/src/ssl_record.erl b/lib/ssl/src/ssl_record.erl
index 62c2ffce8b..003ad4994b 100644
--- a/lib/ssl/src/ssl_record.erl
+++ b/lib/ssl/src/ssl_record.erl
@@ -31,7 +31,7 @@
 
 %% Connection state handling
 -export([initial_security_params/1, current_connection_state/2, pending_connection_state/2,
-	 activate_pending_connection_state/2,
+	 activate_pending_connection_state/3,
 	 set_security_params/3,
          set_mac_secret/4,
 	 set_master_secret/2,
@@ -83,7 +83,7 @@ pending_connection_state(ConnectionStates, write) ->
     maps:get(pending_write, ConnectionStates).
 
 %%--------------------------------------------------------------------
--spec activate_pending_connection_state(connection_states(), read | write) ->
+-spec activate_pending_connection_state(connection_states(), read | write, tls_connection | dtls_connection) ->
 					       connection_states().
 %%
 %% Description: Creates a new instance of the connection_states record
@@ -91,13 +91,13 @@ pending_connection_state(ConnectionStates, write) ->
 %%--------------------------------------------------------------------
 activate_pending_connection_state(#{current_read := Current,
 				    pending_read := Pending} = States,
-                                  read) ->
+                                  read, Connection) ->
     #{secure_renegotiation := SecureRenegotation} = Current,
     #{beast_mitigation := BeastMitigation,
       security_parameters := SecParams} = Pending,
     NewCurrent = Pending#{sequence_number => 0},
     ConnectionEnd = SecParams#security_parameters.connection_end,
-    EmptyPending = empty_connection_state(ConnectionEnd, BeastMitigation),
+    EmptyPending = Connection:empty_connection_state(ConnectionEnd, BeastMitigation),
     NewPending = EmptyPending#{secure_renegotiation => SecureRenegotation},
     States#{current_read => NewCurrent,
 	    pending_read => NewPending
@@ -105,13 +105,13 @@ activate_pending_connection_state(#{current_read := Current,
 
 activate_pending_connection_state(#{current_write := Current,
 				    pending_write := Pending} = States,
-                                  write) ->
+                                  write, Connection) ->
     NewCurrent = Pending#{sequence_number => 0},
     #{secure_renegotiation := SecureRenegotation} = Current,
     #{beast_mitigation := BeastMitigation,
       security_parameters := SecParams} = Pending,
     ConnectionEnd = SecParams#security_parameters.connection_end,
-    EmptyPending = empty_connection_state(ConnectionEnd, BeastMitigation),
+    EmptyPending = Connection:empty_connection_state(ConnectionEnd, BeastMitigation),
     NewPending = EmptyPending#{secure_renegotiation => SecureRenegotation},
     States#{current_write => NewCurrent,
 	    pending_write => NewPending
diff --git a/lib/ssl/src/ssl_tls_dist_proxy.erl b/lib/ssl/src/ssl_tls_dist_proxy.erl
deleted file mode 100644
index 08947f24dd..0000000000
--- a/lib/ssl/src/ssl_tls_dist_proxy.erl
+++ /dev/null
@@ -1,479 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2011-2016. All Rights Reserved.
-%%
-%% Licensed under the Apache License, Version 2.0 (the "License");
-%% you may not use this file except in compliance with the License.
-%% You may obtain a copy of the License at
-%%
-%%     http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%%
-%% %CopyrightEnd%
-%%
--module(ssl_tls_dist_proxy).
-
-
--export([listen/2, accept/2, connect/3, get_tcp_address/1]).
--export([init/1, start_link/0, handle_call/3, handle_cast/2, handle_info/2, 
-	 terminate/2, code_change/3, ssl_options/2]).
-
--include_lib("kernel/include/net_address.hrl").
-
--record(state, 
-	{listen,
-	 accept_loop
-	}).
-
--define(PPRE, 4).
--define(PPOST, 4).
-
-
-%%====================================================================
-%% Internal application API
-%%====================================================================
-
-listen(Driver, Name) ->
-    gen_server:call(?MODULE, {listen, Driver, Name}, infinity).
-
-accept(Driver, Listen) ->
-    gen_server:call(?MODULE, {accept, Driver, Listen}, infinity).
-
-connect(Driver, Ip, Port) ->
-    gen_server:call(?MODULE, {connect, Driver, Ip, Port}, infinity).
-
-
-do_listen(Options) ->
-    {First,Last} = case application:get_env(kernel,inet_dist_listen_min) of
-                        {ok,N} when is_integer(N) ->
-                            case application:get_env(kernel,
-                                                    inet_dist_listen_max) of
-                               {ok,M} when is_integer(M) ->
-                                   {N,M};
-                               _ ->
-                                   {N,N}
-                            end;
-                        _ ->
-                            {0,0}
-                   end,
-    do_listen(First, Last, listen_options([{backlog,128}|Options])).
-
-do_listen(First,Last,_) when First > Last ->
-    {error,eaddrinuse};
-do_listen(First,Last,Options) ->
-    case gen_tcp:listen(First, Options) of
-        {error, eaddrinuse} ->
-            do_listen(First+1,Last,Options);
-        Other ->
-            Other
-    end.
-
-listen_options(Opts0) ->
-    Opts1 =
-        case application:get_env(kernel, inet_dist_use_interface) of
-            {ok, Ip} ->
-                [{ip, Ip} | Opts0];
-            _ ->
-                Opts0
-        end,
-    case application:get_env(kernel, inet_dist_listen_options) of
-        {ok,ListenOpts} ->
-            ListenOpts ++ Opts1;
-        _ ->
-            Opts1
-    end.
-
-connect_options(Opts) ->
-    case application:get_env(kernel, inet_dist_connect_options) of
-	{ok,ConnectOpts} ->
-	    lists:ukeysort(1, ConnectOpts ++ Opts);
-	_ ->
-	    Opts
-    end.
-
-%%====================================================================
-%% gen_server callbacks
-%%====================================================================
-
-start_link() ->
-    gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
-
-init([]) ->
-    process_flag(priority, max),
-    {ok, #state{}}.
-
-handle_call({listen, Driver, Name}, _From, State) ->
-    case gen_tcp:listen(0, [{active, false}, {packet,?PPRE}, {ip, loopback}]) of
-	{ok, Socket} ->
-	    {ok, World} = do_listen([{active, false}, binary, {packet,?PPRE}, {reuseaddr, true},
-                                     Driver:family()]),
-	    {ok, TcpAddress} = get_tcp_address(Socket),
-	    {ok, WorldTcpAddress} = get_tcp_address(World),
-	    {_,Port} = WorldTcpAddress#net_address.address,
-	    ErlEpmd = net_kernel:epmd_module(),
-	    case ErlEpmd:register_node(Name, Port, Driver) of
-		{ok, Creation} ->
-		    {reply, {ok, {Socket, TcpAddress, Creation}},
-		     State#state{listen={Socket, World}}};
-		{error, _} = Error ->
-		    {reply, Error, State}
-	    end;
-	Error ->
-	    {reply, Error, State}
-    end;
-
-handle_call({accept, _Driver, Listen}, {From, _}, State = #state{listen={_, World}}) ->
-    Self = self(),
-    ErtsPid = spawn_link(fun() -> accept_loop(Self, erts, Listen, From) end),
-    WorldPid = spawn_link(fun() -> accept_loop(Self, world, World, Listen) end),
-    {reply, ErtsPid, State#state{accept_loop={ErtsPid, WorldPid}}};
-
-handle_call({connect, Driver, Ip, Port}, {From, _}, State) ->
-    Me = self(),
-    Pid = spawn_link(fun() -> setup_proxy(Driver, Ip, Port, Me) end),
-    receive 
-	{Pid, go_ahead, LPort} -> 
-	    Res = {ok, Socket} = try_connect(LPort),
-	    case gen_tcp:controlling_process(Socket, From) of
-		{error, badarg} = Error -> {reply, Error, State};   % From is dead anyway.
-		ok ->
-		    flush_old_controller(From, Socket),
-		    {reply, Res, State}
-	    end;
-	{Pid, Error} ->
-	    {reply, Error, State}
-    end;
-
-handle_call(_What, _From, State) ->
-    {reply, ok, State}.
-
-handle_cast(_What, State) ->
-    {noreply, State}.
-
-handle_info(_What, State) ->
-    {noreply, State}.
-
-terminate(_Reason, _St) ->
-    ok.
-
-code_change(_OldVsn, St, _Extra) ->
-    {ok, St}.
-
-%%--------------------------------------------------------------------
-%%% Internal functions
-%%--------------------------------------------------------------------
-get_tcp_address(Socket) ->
-    case inet:sockname(Socket) of
-	{ok, Address} ->
-	    {ok, Host} = inet:gethostname(),
-	    NetAddress = #net_address{
-			    address = Address,
-			    host = Host,
-			    protocol = proxy,
-			    family = inet
-			   },
-	    {ok, NetAddress};
-	{error, _} = Error -> Error
-    end.
-
-accept_loop(Proxy, erts = Type, Listen, Extra) ->
-    process_flag(priority, max),
-    case gen_tcp:accept(Listen) of
-	{ok, Socket} ->
-	    Extra ! {accept,self(),Socket,inet,proxy},
-	    receive 
-		{_Kernel, controller, Pid} ->
-		    inet:setopts(Socket, [nodelay()]),
-		    ok = gen_tcp:controlling_process(Socket, Pid),
-		    flush_old_controller(Pid, Socket),
-		    Pid ! {self(), controller};
-		{_Kernel, unsupported_protocol} ->
-		    exit(unsupported_protocol)
-	    end;
-	{error, closed} ->
-	    %% The listening socket is closed: the proxy process is
-	    %% shutting down.  Exit normally, to avoid generating a
-	    %% spurious error report.
-	    exit(normal);
-	Error ->
-	    exit(Error)
-    end,
-    accept_loop(Proxy, Type, Listen, Extra);
-
-accept_loop(Proxy, world = Type, Listen, Extra) ->
-    process_flag(priority, max),
-    case gen_tcp:accept(Listen) of
-	{ok, Socket} ->
-	    Opts = get_ssl_options(server),
-	    wait_for_code_server(),
-	    case ssl:ssl_accept(Socket, Opts) of
-		{ok, SslSocket} ->
-		    PairHandler =
-			spawn_link(fun() ->
-					   setup_connection(SslSocket, Extra)
-				   end),
-		    ok = ssl:controlling_process(SslSocket, PairHandler),
-		    flush_old_controller(PairHandler, SslSocket);
-		{error, {options, _}} = Error ->
-		    %% Bad options: that's probably our fault.  Let's log that.
-		    error_logger:error_msg("Cannot accept TLS distribution connection: ~s~n",
-					   [ssl:format_error(Error)]),
-		    gen_tcp:close(Socket);
-		_ ->
-		    gen_tcp:close(Socket)
-	    end;
-	Error ->
-	    exit(Error)
-    end,
-    accept_loop(Proxy, Type, Listen, Extra).
-
-wait_for_code_server() ->
-    %% This is an ugly hack.  Upgrading a socket to TLS requires the
-    %% crypto module to be loaded.  Loading the crypto module triggers
-    %% its on_load function, which calls code:priv_dir/1 to find the
-    %% directory where its NIF library is.  However, distribution is
-    %% started earlier than the code server, so the code server is not
-    %% necessarily started yet, and code:priv_dir/1 might fail because
-    %% of that, if we receive an incoming connection on the
-    %% distribution port early enough.
-    %%
-    %% If the on_load function of a module fails, the module is
-    %% unloaded, and the function call that triggered loading it fails
-    %% with 'undef', which is rather confusing.
-    %%
-    %% Thus, the ssl_tls_dist_proxy process will terminate, and be
-    %% restarted by ssl_dist_sup.  However, it won't have any memory
-    %% of being asked by net_kernel to listen for incoming
-    %% connections.  Hence, the node will believe that it's open for
-    %% distribution, but it actually isn't.
-    %%
-    %% So let's avoid that by waiting for the code server to start.
-    case whereis(code_server) of
-	undefined ->
-	    timer:sleep(10),
-	    wait_for_code_server();
-	Pid when is_pid(Pid) ->
-	    ok
-    end.
-
-try_connect(Port) ->
-    case gen_tcp:connect({127,0,0,1}, Port, [{active, false}, {packet,?PPRE}, nodelay()]) of
-	R = {ok, _S} ->
-	    R;
-	{error, _R} ->
-	    try_connect(Port)
-    end.
-
-setup_proxy(Driver, Ip, Port, Parent) ->
-    process_flag(trap_exit, true),
-    Opts = connect_options(get_ssl_options(client)),
-    case ssl:connect(Ip, Port, [{active, true}, binary, {packet,?PPRE}, nodelay(),
-                                Driver:family()] ++ Opts) of
-	{ok, World} ->
-	    {ok, ErtsL} = gen_tcp:listen(0, [{active, true}, {ip, loopback}, binary, {packet,?PPRE}]),
-	    {ok, #net_address{address={_,LPort}}} = get_tcp_address(ErtsL),
-	    Parent ! {self(), go_ahead, LPort},
-	    case gen_tcp:accept(ErtsL) of
-		{ok, Erts} ->
-		    %% gen_tcp:close(ErtsL),
-		    loop_conn_setup(World, Erts);
-		Err ->
-		    Parent ! {self(), Err}
-	    end;
-	{error, {options, _}} = Err ->
-	    %% Bad options: that's probably our fault.  Let's log that.
-	    error_logger:error_msg("Cannot open TLS distribution connection: ~s~n",
-				   [ssl:format_error(Err)]),
-	    Parent ! {self(), Err};
-	Err ->
-	    Parent ! {self(), Err}
-    end.
-
-
-%% we may not always want the nodelay behaviour
-%% %% for performance reasons
-
-nodelay() ->
-    case application:get_env(kernel, dist_nodelay) of
-  undefined ->
-      {nodelay, true};
-  {ok, true} ->
-      {nodelay, true};
-  {ok, false} ->
-      {nodelay, false};
-  _ ->
-      {nodelay, true}
-    end.
-
-setup_connection(World, ErtsListen) ->
-    process_flag(trap_exit, true),
-    {ok, TcpAddress} = get_tcp_address(ErtsListen),
-    {_Addr,Port} = TcpAddress#net_address.address,
-    {ok, Erts} = gen_tcp:connect({127,0,0,1}, Port, [{active, true}, binary, {packet,?PPRE}, nodelay()]),
-    ssl:setopts(World, [{active,true}, {packet,?PPRE}, nodelay()]),
-    loop_conn_setup(World, Erts).
-
-loop_conn_setup(World, Erts) ->
-    receive 
-	{ssl, World, Data = <<$a, _/binary>>} ->
-	    gen_tcp:send(Erts, Data),
-	    ssl:setopts(World, [{packet,?PPOST}, nodelay()]),
-	    inet:setopts(Erts, [{packet,?PPOST}, nodelay()]),
-	    loop_conn(World, Erts);
-	{tcp, Erts, Data = <<$a, _/binary>>} ->
-	    ssl:send(World, Data),
-	    ssl:setopts(World, [{packet,?PPOST}, nodelay()]),
-	    inet:setopts(Erts, [{packet,?PPOST}, nodelay()]),
-	    loop_conn(World, Erts);
-	{ssl, World, Data = <<_, _/binary>>} ->
-	    gen_tcp:send(Erts, Data),
-	    loop_conn_setup(World, Erts);
-	{tcp, Erts, Data = <<_, _/binary>>} ->
-	    ssl:send(World, Data),
-	    loop_conn_setup(World, Erts);
-	{ssl, World, Data} ->
-	    gen_tcp:send(Erts, Data),
-	    loop_conn_setup(World, Erts);
-	{tcp, Erts, Data} ->
-	    ssl:send(World, Data),
-	    loop_conn_setup(World, Erts);
-	{tcp_closed, Erts} ->
-	    ssl:close(World);
-	{ssl_closed,  World} ->
-	    gen_tcp:close(Erts);
-	{ssl_error, World, _} ->
-
-	    ssl:close(World)
-    end.
-
-loop_conn(World, Erts) ->
-    receive 
-	{ssl, World, Data} ->
-	    gen_tcp:send(Erts, Data),
-	    loop_conn(World, Erts);
-	{tcp, Erts, Data} ->
-	    ssl:send(World, Data),
-	    loop_conn(World, Erts);
-	{tcp_closed, Erts} ->
-	    ssl:close(World);
-	{ssl_closed,  World} ->
-	    gen_tcp:close(Erts);
-	{ssl_error, World, _} ->
-	    ssl:close(World)
-    end.
-
-get_ssl_options(Type) ->
-    case init:get_argument(ssl_dist_opt) of
-	{ok, Args} ->
-	    [{erl_dist, true} | ssl_options(Type, lists:append(Args))];
-	_ ->
-	    [{erl_dist, true}]
-    end.
-
-ssl_options(_,[]) ->
-    [];
-ssl_options(server, ["client_" ++ _, _Value |T]) ->
-    ssl_options(server,T);
-ssl_options(client, ["server_" ++ _, _Value|T]) ->
-    ssl_options(client,T);
-ssl_options(server, ["server_certfile", Value|T]) ->
-    [{certfile, Value} | ssl_options(server,T)];
-ssl_options(client, ["client_certfile", Value | T]) ->
-    [{certfile, Value} | ssl_options(client,T)];
-ssl_options(server, ["server_cacertfile", Value|T]) ->
-    [{cacertfile, Value} | ssl_options(server,T)];
-ssl_options(client, ["client_cacertfile", Value|T]) ->
-    [{cacertfile, Value} | ssl_options(client,T)];
-ssl_options(server, ["server_keyfile", Value|T]) ->
-    [{keyfile, Value} | ssl_options(server,T)];
-ssl_options(client, ["client_keyfile", Value|T]) ->
-    [{keyfile, Value} | ssl_options(client,T)];
-ssl_options(server, ["server_password", Value|T]) ->
-    [{password, Value} | ssl_options(server,T)];
-ssl_options(client, ["client_password", Value|T]) ->
-    [{password, Value} | ssl_options(client,T)];
-ssl_options(server, ["server_verify", Value|T]) ->
-    [{verify, atomize(Value)} | ssl_options(server,T)];
-ssl_options(client, ["client_verify", Value|T]) ->
-    [{verify, atomize(Value)} | ssl_options(client,T)];
-ssl_options(server, ["server_verify_fun", Value|T]) ->
-    [{verify_fun, verify_fun(Value)} | ssl_options(server,T)];
-ssl_options(client, ["client_verify_fun", Value|T]) ->
-    [{verify_fun, verify_fun(Value)} | ssl_options(client,T)];
-ssl_options(server, ["server_crl_check", Value|T]) ->
-    [{crl_check, atomize(Value)} | ssl_options(server,T)];
-ssl_options(client, ["client_crl_check", Value|T]) ->
-    [{crl_check, atomize(Value)} | ssl_options(client,T)];
-ssl_options(server, ["server_crl_cache", Value|T]) ->
-    [{crl_cache, termify(Value)} | ssl_options(server,T)];
-ssl_options(client, ["client_crl_cache", Value|T]) ->
-    [{crl_cache, termify(Value)} | ssl_options(client,T)];
-ssl_options(server, ["server_reuse_sessions", Value|T]) ->
-    [{reuse_sessions, atomize(Value)} | ssl_options(server,T)];
-ssl_options(client, ["client_reuse_sessions", Value|T]) ->
-    [{reuse_sessions, atomize(Value)} | ssl_options(client,T)];
-ssl_options(server, ["server_secure_renegotiate", Value|T]) ->
-    [{secure_renegotiate, atomize(Value)} | ssl_options(server,T)];
-ssl_options(client, ["client_secure_renegotiate", Value|T]) ->
-    [{secure_renegotiate, atomize(Value)} | ssl_options(client,T)];
-ssl_options(server, ["server_depth", Value|T]) ->
-    [{depth, list_to_integer(Value)} | ssl_options(server,T)];
-ssl_options(client, ["client_depth", Value|T]) ->
-    [{depth, list_to_integer(Value)} | ssl_options(client,T)];
-ssl_options(server, ["server_hibernate_after", Value|T]) ->
-    [{hibernate_after, list_to_integer(Value)} | ssl_options(server,T)];
-ssl_options(client, ["client_hibernate_after", Value|T]) ->
-    [{hibernate_after, list_to_integer(Value)} | ssl_options(client,T)];
-ssl_options(server, ["server_ciphers", Value|T]) ->
-    [{ciphers, Value} | ssl_options(server,T)];
-ssl_options(client, ["client_ciphers", Value|T]) ->
-    [{ciphers, Value} | ssl_options(client,T)];
-ssl_options(server, ["server_dhfile", Value|T]) ->
-    [{dhfile, Value} | ssl_options(server,T)];
-ssl_options(server, ["server_fail_if_no_peer_cert", Value|T]) ->
-    [{fail_if_no_peer_cert, atomize(Value)} | ssl_options(server,T)];
-ssl_options(Type, Opts) ->
-    error(malformed_ssl_dist_opt, [Type, Opts]).
-
-atomize(List) when is_list(List) ->
-    list_to_atom(List);
-atomize(Atom) when is_atom(Atom) ->
-    Atom.
-
-termify(String) when is_list(String) ->
-    {ok, Tokens, _} = erl_scan:string(String ++ "."),
-    {ok, Term} = erl_parse:parse_term(Tokens),
-    Term.
-
-verify_fun(Value) ->
-    case termify(Value) of
-	{Mod, Func, State} when is_atom(Mod), is_atom(Func) ->
-	    Fun = fun Mod:Func/3,
-	    {Fun, State};
-	_ ->
-	    error(malformed_ssl_dist_opt, [Value])
-    end.
-
-flush_old_controller(Pid, Socket) ->
-    receive
-	{tcp, Socket, Data} ->
-	    Pid ! {tcp, Socket, Data},
-	    flush_old_controller(Pid, Socket);
-	{tcp_closed, Socket} ->
-	    Pid ! {tcp_closed, Socket},
-	    flush_old_controller(Pid, Socket);
-	{ssl, Socket, Data} ->
-	    Pid ! {ssl, Socket, Data},
-	    flush_old_controller(Pid, Socket);
-	{ssl_closed, Socket} ->
-	    Pid ! {ssl_closed, Socket},
-	    flush_old_controller(Pid, Socket)
-    after 0 ->
-	    ok
-    end.
diff --git a/lib/ssl/src/tls_connection.erl b/lib/ssl/src/tls_connection.erl
index e3ffbea3d3..62452808ae 100644
--- a/lib/ssl/src/tls_connection.erl
+++ b/lib/ssl/src/tls_connection.erl
@@ -53,7 +53,7 @@
 %% Handshake handling
 -export([renegotiate/2, send_handshake/2, 
 	 queue_handshake/2, queue_change_cipher/2,
-	 reinit_handshake_data/1,  select_sni_extension/1]).
+	 reinit_handshake_data/1,  select_sni_extension/1, empty_connection_state/2]).
 
 %% Alert and close handling
 -export([send_alert/2, close/5, protocol_name/0]).
@@ -65,7 +65,7 @@
 %% gen_statem state functions
 -export([init/3, error/3, downgrade/3, %% Initiation and take down states
 	 hello/3, certify/3, cipher/3, abbreviated/3, %% Handshake states 
-	 connection/3]). 
+	 connection/3, death_row/3]).
 %% gen_statem callbacks
 -export([callback_mode/0, terminate/3, code_change/4, format_status/2]).
  
@@ -152,6 +152,9 @@ select_sni_extension(#client_hello{extensions = HelloExtensions}) ->
 select_sni_extension(_) ->
     undefined.
 
+empty_connection_state(ConnectionEnd, BeastMitigation) ->
+    ssl_record:empty_connection_state(ConnectionEnd, BeastMitigation).
+
 encode_data(Data, Version, ConnectionStates0)->
     tls_record:encode_data(Data, Version, ConnectionStates0).
 
@@ -241,7 +244,7 @@ init({call, From}, {start, Timeout},
     {Record, State} = next_record(State1),
     next_event(hello, Record, State);
 init(Type, Event, State) ->
-    gen_handshake(ssl_connection, init, Type, Event, State).
+    gen_handshake(ssl_connection, ?FUNCTION_NAME, Type, Event, State).
  
 %%--------------------------------------------------------------------
 -spec error(gen_statem:event_type(),
@@ -252,7 +255,7 @@ init(Type, Event, State) ->
 error({call, From}, {start, _Timeout}, {Error, State}) ->
     {stop_and_reply, normal, {reply, From, {error, Error}}, State};
 error({call, From}, Msg, State) ->
-    handle_call(Msg, From, error, State);
+    handle_call(Msg, From, ?FUNCTION_NAME, State);
 error(_, _, _) ->
      {keep_state_and_data, [postpone]}.
  
@@ -304,36 +307,36 @@ hello(internal, #server_hello{} = Hello,
 					  Version, NewId, ConnectionStates, ProtoExt, Protocol, State)
     end;
 hello(info, Event, State) ->
-    gen_info(Event, hello, State);
+    gen_info(Event, ?FUNCTION_NAME, State);
 hello(Type, Event, State) ->
-    gen_handshake(ssl_connection, hello, Type, Event, State).
+    gen_handshake(ssl_connection, ?FUNCTION_NAME, Type, Event, State).
 
 %%--------------------------------------------------------------------
 -spec abbreviated(gen_statem:event_type(), term(), #state{}) ->
 			 gen_statem:state_function_result().
 %%--------------------------------------------------------------------
 abbreviated(info, Event, State) ->
-    gen_info(Event, abbreviated, State);
+    gen_info(Event, ?FUNCTION_NAME, State);
 abbreviated(Type, Event, State) ->
-    gen_handshake(ssl_connection, abbreviated, Type, Event, State).
+    gen_handshake(ssl_connection, ?FUNCTION_NAME, Type, Event, State).
 
 %%--------------------------------------------------------------------
 -spec certify(gen_statem:event_type(), term(), #state{}) ->
 		     gen_statem:state_function_result().
 %%--------------------------------------------------------------------
 certify(info, Event, State) ->
-    gen_info(Event, certify, State);
+    gen_info(Event, ?FUNCTION_NAME, State);
 certify(Type, Event, State) ->
-    gen_handshake(ssl_connection, certify, Type, Event, State).
+    gen_handshake(ssl_connection, ?FUNCTION_NAME, Type, Event, State).
 
 %%--------------------------------------------------------------------
 -spec cipher(gen_statem:event_type(), term(), #state{}) ->
 		    gen_statem:state_function_result().
 %%--------------------------------------------------------------------
 cipher(info, Event, State) ->
-    gen_info(Event, cipher, State);
+    gen_info(Event, ?FUNCTION_NAME, State);
 cipher(Type, Event, State) ->
-     gen_handshake(ssl_connection, cipher, Type, Event, State).
+     gen_handshake(ssl_connection, ?FUNCTION_NAME, Type, Event, State).
 
 %%--------------------------------------------------------------------
 -spec connection(gen_statem:event_type(),  
@@ -341,7 +344,7 @@ cipher(Type, Event, State) ->
 			gen_statem:state_function_result().
 %%--------------------------------------------------------------------
 connection(info, Event, State) ->
-    gen_info(Event, connection, State);
+    gen_info(Event, ?FUNCTION_NAME, State);
 connection(internal, #hello_request{},
 	   #state{role = client, host = Host, port = Port,
 		  session = #session{own_certificate = Cert} = Session0,
@@ -373,16 +376,23 @@ connection(internal, #client_hello{},
     Alert = ?ALERT_REC(?WARNING, ?NO_RENEGOTIATION),
     State1 = send_alert(Alert, State0),
     {Record, State} = ssl_connection:prepare_connection(State1, ?MODULE),
-    next_event(connection, Record, State);
+    next_event(?FUNCTION_NAME, Record, State);
 connection(Type, Event, State) ->
-    ssl_connection:connection(Type, Event, State, ?MODULE).
+    ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE).
+
+%%--------------------------------------------------------------------
+-spec death_row(gen_statem:event_type(), term(), #state{}) ->
+		       gen_statem:state_function_result().
+%%--------------------------------------------------------------------
+death_row(Type, Event, State) ->
+     ssl_connection:death_row(Type, Event, State, ?MODULE).
 
 %%--------------------------------------------------------------------
 -spec downgrade(gen_statem:event_type(), term(), #state{}) ->
 		       gen_statem:state_function_result().
 %%--------------------------------------------------------------------
 downgrade(Type, Event, State) ->
-     ssl_connection:downgrade(Type, Event, State, ?MODULE).
+     ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE).
 
 %%--------------------------------------------------------------------
 %% Event handling functions called by state functions to handle
@@ -434,7 +444,7 @@ handle_info({CloseTag, Socket}, StateName,
             next_event(StateName, no_record, State)
     end;
 handle_info(Msg, StateName, State) ->
-    ssl_connection:handle_info(Msg, StateName, State).
+    ssl_connection:StateName(info, Msg, State, ?MODULE).
 
 handle_common_event(internal, #alert{} = Alert, StateName, 
 		    #state{negotiated_version = Version} = State) ->
diff --git a/lib/ssl/src/tls_socket.erl b/lib/ssl/src/tls_socket.erl
index e76d9c100a..453a908401 100644
--- a/lib/ssl/src/tls_socket.erl
+++ b/lib/ssl/src/tls_socket.erl
@@ -27,7 +27,7 @@
 -export([send/3, listen/3, accept/3, socket/5, connect/4, upgrade/3,
 	 setopts/3, getopts/3, getstat/3, peername/2, sockname/2, port/2]).
 -export([split_options/1, get_socket_opts/3]).
--export([emulated_options/0, internal_inet_values/0, default_inet_values/0,
+-export([emulated_options/0, emulated_options/1, internal_inet_values/0, default_inet_values/0,
 	 init/1, start_link/3, terminate/2, inherit_tracker/3, 
 	 emulated_socket_options/2, get_emulated_opts/1, 
 	 set_emulated_opts/2, get_all_opts/1, handle_call/3, handle_cast/2,
@@ -170,6 +170,9 @@ port(Transport, Socket) ->
 emulated_options() ->
     [mode, packet, active, header, packet_size].
 
+emulated_options(Opts) ->
+      emulated_options(Opts, internal_inet_values(), default_inet_values()).
+
 internal_inet_values() ->
     [{packet_size,0}, {packet, 0}, {header, 0}, {active, false}, {mode,binary}].
 
@@ -328,3 +331,41 @@ emulated_socket_options(InetValues, #socket_options{
        packet = proplists:get_value(packet, InetValues, Packet),
        packet_size = proplists:get_value(packet_size, InetValues, Size)
       }.
+
+emulated_options([{mode, Value} = Opt |Opts], Inet, Emulated) ->
+    validate_inet_option(mode, Value),
+    emulated_options(Opts, Inet, [Opt | proplists:delete(mode, Emulated)]);
+emulated_options([{header, Value} = Opt | Opts], Inet, Emulated) ->
+    validate_inet_option(header, Value),
+    emulated_options(Opts, Inet,  [Opt | proplists:delete(header, Emulated)]);
+emulated_options([{active, Value} = Opt |Opts], Inet, Emulated) ->
+    validate_inet_option(active, Value),
+    emulated_options(Opts, Inet, [Opt | proplists:delete(active, Emulated)]);
+emulated_options([{packet, Value} = Opt |Opts], Inet, Emulated) ->
+    validate_inet_option(packet, Value),
+    emulated_options(Opts, Inet, [Opt | proplists:delete(packet, Emulated)]);
+emulated_options([{packet_size, Value} = Opt | Opts], Inet, Emulated) ->
+    validate_inet_option(packet_size, Value),
+    emulated_options(Opts, Inet, [Opt | proplists:delete(packet_size, Emulated)]);
+emulated_options([Opt|Opts], Inet, Emulated) ->
+    emulated_options(Opts, [Opt|Inet], Emulated);
+emulated_options([], Inet,Emulated) ->
+    {Inet, Emulated}.
+
+validate_inet_option(mode, Value)
+  when Value =/= list, Value =/= binary ->
+    throw({error, {options, {mode,Value}}});
+validate_inet_option(packet, Value)
+  when not (is_atom(Value) orelse is_integer(Value)) ->
+    throw({error, {options, {packet,Value}}});
+validate_inet_option(packet_size, Value)
+  when not is_integer(Value) ->
+    throw({error, {options, {packet_size,Value}}});
+validate_inet_option(header, Value)
+  when not is_integer(Value) ->
+    throw({error, {options, {header,Value}}});
+validate_inet_option(active, Value)
+  when Value =/= true, Value =/= false, Value =/= once ->
+    throw({error, {options, {active,Value}}});
+validate_inet_option(_, _) ->
+    ok.
diff --git a/lib/ssl/test/ssl_ECC_SUITE.erl b/lib/ssl/test/ssl_ECC_SUITE.erl
index c48ccfb83b..f38c0a7416 100644
--- a/lib/ssl/test/ssl_ECC_SUITE.erl
+++ b/lib/ssl/test/ssl_ECC_SUITE.erl
@@ -200,8 +200,14 @@ common_init_per_group(GroupName, Config) ->
 	   openssl_check(GroupName, Config)
     end.
 
-end_per_group(_GroupName, Config) ->
-   proplists:delete(tls_version, Config).
+end_per_group(GroupName, Config0) ->
+  case ssl_test_lib:is_tls_version(GroupName) of
+      true ->
+          Config = ssl_test_lib:clean_tls_version(Config0),
+          proplists:delete(tls_version, Config);
+      false ->
+          Config0
+  end.
 
 %%--------------------------------------------------------------------
 
@@ -226,103 +232,150 @@ end_per_testcase(_TestCase, Config) ->
 
 %% ECDH_RSA 
 client_ecdh_rsa_server_ecdh_rsa(Config) when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}],
                                                       ecdh_rsa, ecdh_rsa, Config),
     basic_test(COpts, SOpts, [{check_keyex, ecdh_rsa} | proplists:delete(check_keyex, Config)]).
 client_ecdhe_rsa_server_ecdh_rsa(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([], ecdhe_rsa, ecdh_rsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}], 
+                                                      ecdhe_rsa, ecdh_rsa, Config),
     basic_test(COpts, SOpts,  [{check_keyex, ecdh_rsa} | proplists:delete(check_keyex, Config)]).
 client_ecdhe_ecdsa_server_ecdh_rsa(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdhe_ecdsa, ecdh_rsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}],
+                                                      ecdhe_ecdsa, ecdh_rsa, Config),
     basic_test(COpts, SOpts,  [{check_keyex, ecdh_rsa} | proplists:delete(check_keyex, Config)]).
 
 %% ECDHE_RSA    
 client_ecdh_rsa_server_ecdhe_rsa(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([], ecdh_rsa, ecdhe_rsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}], 
+                                                      ecdh_rsa, ecdhe_rsa, Config),
     basic_test(COpts, SOpts,  [{check_keyex, ecdhe_rsa} | proplists:delete(check_keyex, Config)]).
 client_ecdhe_rsa_server_ecdhe_rsa(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([], ecdhe_rsa, ecdhe_rsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}], 
+                                                      ecdhe_rsa, ecdhe_rsa, Config),
     basic_test(COpts, SOpts,   [{check_keyex, ecdhe_rsa} | proplists:delete(check_keyex, Config)]).
 client_ecdhe_ecdsa_server_ecdhe_rsa(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdh_ecdsa, ecdhe_rsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}],
+                                                      ecdh_ecdsa, ecdhe_rsa, Config),
     basic_test(COpts, SOpts,   [{check_keyex, ecdhe_rsa} | proplists:delete(check_keyex, Config)]).
-   
+
 %% ECDH_ECDSA
 client_ecdh_ecdsa_server_ecdh_ecdsa(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_peer_opts, 
-                                                        [{extensions, [{key_usage, [keyEncipherment]
-                                                                       }]}]}],
+    Ext = x509_test:extensions([{key_usage, [keyEncipherment]}]),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, 
+                                                        [[], [], [{extensions, Ext}]]},
+                                                       {client_chain,
+                                                         ssl_test_lib:default_cert_chain_conf()}],
                                                       ecdh_ecdsa, ecdh_ecdsa, Config),
     basic_test(COpts, SOpts,
                [{check_keyex, ecdh_ecdsa} | proplists:delete(check_keyex, Config)]).
 client_ecdhe_rsa_server_ecdh_ecdsa(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_peer_opts, 
-                                                        [{extensions, [{key_usage, [keyEncipherment]
-                                                                       }]}]}],
-                                                      ecdhe_rsa, ecdh_ecdsa, Config),
-    basic_test(COpts, SOpts, [{check_keyex, ecdh_ecdsa} | proplists:delete(check_keyex, Config)]).
+     Ext = x509_test:extensions([{key_usage, [keyEncipherment]}]),
+     {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, 
+                                                         [[], [], [{extensions, Ext}]]},
+                                                        {client_chain,
+                                                         ssl_test_lib:default_cert_chain_conf()}],
+                                                       ecdhe_rsa, ecdh_ecdsa, Config),
+     basic_test(COpts, SOpts, [{check_keyex, ecdh_ecdsa} | proplists:delete(check_keyex, Config)]).
 
 client_ecdhe_ecdsa_server_ecdh_ecdsa(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_peer_opts, 
-                                                        [{extensions, [{key_usage, [keyEncipherment]
-                                                                       }]}]}],
-                                                      ecdhe_ecdsa, ecdh_ecdsa, Config),
+    Ext = x509_test:extensions([{key_usage, [keyEncipherment]}]),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, 
+                                                        [[], [], [{extensions, Ext}]]},
+                                                       {client_chain,
+                                                        ssl_test_lib:default_cert_chain_conf()}],
+                                                       ecdhe_ecdsa, ecdh_ecdsa, Config),
     basic_test(COpts, SOpts,
                [{check_keyex, ecdh_ecdsa} | proplists:delete(check_keyex, Config)]).
 
 %% ECDHE_ECDSA
 client_ecdh_rsa_server_ecdhe_ecdsa(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([], ecdh_rsa, ecdhe_ecdsa, Config), 
+     Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}], 
+                                                      ecdh_rsa, ecdhe_ecdsa, Config), 
     basic_test(COpts, SOpts, [{check_keyex, ecdhe_ecdsa} | proplists:delete(check_keyex, Config)]).
 client_ecdh_ecdsa_server_ecdhe_ecdsa(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([], ecdh_ecdsa, ecdhe_ecdsa, Config), 
+     Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}], 
+                                                      ecdh_ecdsa, ecdhe_ecdsa, Config), 
     basic_test(COpts, SOpts, [{check_keyex, ecdhe_ecdsa} | proplists:delete(check_keyex, Config)]).
 client_ecdhe_ecdsa_server_ecdhe_ecdsa(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([], ecdhe_ecdsa, ecdhe_ecdsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+     {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                        {client_chain, Default}], 
+                                                       ecdhe_ecdsa, ecdhe_ecdsa, Config),
     basic_test(COpts, SOpts, [{check_keyex, ecdhe_ecdsa} | proplists:delete(check_keyex, Config)]).
 
 client_ecdsa_server_ecdsa_with_raw_key(Config)  when is_list(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([], ecdhe_ecdsa, ecdhe_ecdsa, Config),
+     Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}]
+                                                     , ecdhe_ecdsa, ecdhe_ecdsa, Config),
     ServerKeyFile = proplists:get_value(keyfile, SOpts),
     {ok, PemBin} = file:read_file(ServerKeyFile),
     PemEntries = public_key:pem_decode(PemBin),
-    {'ECPrivateKey', Key, not_encrypted} = proplists:lookup('ECPrivateKey', PemEntries),
+     {'ECPrivateKey', Key, not_encrypted} = proplists:lookup('ECPrivateKey', PemEntries),
     ServerKey = {'ECPrivateKey', Key},
     SType = proplists:get_value(server_type, Config),
     CType = proplists:get_value(client_type, Config),
     {Server, Port} = start_server_with_raw_key(SType,
                                                [{key, ServerKey} | proplists:delete(keyfile, SOpts)],
-                                               Config),
+                                                Config),
     Client = start_client(CType, Port, COpts, Config),
-    check_result(Server, SType, Client, CType),
+     check_result(Server, SType, Client, CType),
     close(Server, Client).
 
 ecc_default_order(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdhe_ecdsa, ecdhe_ecdsa, Config),   
+    Default = ssl_test_lib:default_cert_chain_conf(),
+     {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                        {client_chain, Default}],
+                                                       ecdhe_ecdsa, ecdhe_ecdsa, Config),   
     ECCOpts = [],
     case supported_eccs([{eccs, [sect571r1]}]) of
         true -> ecc_test(sect571r1, COpts, SOpts, [], ECCOpts, Config);
         false -> {skip, "unsupported named curves"}
-    end.
+     end.
 
 ecc_default_order_custom_curves(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdhe_ecdsa, ecdhe_ecdsa, Config),   
+    Default = ssl_test_lib:default_cert_chain_conf(),
+     {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                        {client_chain, Default}],
+                                                       ecdhe_ecdsa, ecdhe_ecdsa, Config),   
     ECCOpts = [{eccs, [secp256r1, sect571r1]}],
     case supported_eccs(ECCOpts) of
-        true -> ecc_test(sect571r1, COpts, SOpts, [], ECCOpts, Config);
+         true -> ecc_test(sect571r1, COpts, SOpts, [], ECCOpts, Config);
         false -> {skip, "unsupported named curves"}
     end.
 
 ecc_client_order(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdhe_ecdsa, ecdhe_ecdsa, Config),   
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}],
+                                                      ecdhe_ecdsa, ecdhe_ecdsa, Config),   
     ECCOpts = [{honor_ecc_order, false}],
     case supported_eccs([{eccs, [sect571r1]}]) of
-        true -> ecc_test(sect571r1, COpts, SOpts, [], ECCOpts, Config);
+         true -> ecc_test(sect571r1, COpts, SOpts, [], ECCOpts, Config);
         false -> {skip, "unsupported named curves"}
     end.
 
 ecc_client_order_custom_curves(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdhe_ecdsa, ecdhe_ecdsa, Config),   
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default},
+                                                        {client_chain, Default}],
+                                                      ecdhe_ecdsa, ecdhe_ecdsa, Config),   
     ECCOpts = [{honor_ecc_order, false}, {eccs, [secp256r1, sect571r1]}],
     case supported_eccs(ECCOpts) of
         true -> ecc_test(sect571r1, COpts, SOpts, [], ECCOpts, Config);
@@ -330,45 +383,62 @@ ecc_client_order_custom_curves(Config) ->
     end.
 
 ecc_unknown_curve(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdhe_ecdsa, ecdhe_ecdsa, Config),   
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default},
+                                                       {client_chain, Default}],
+                                                      ecdhe_ecdsa, ecdhe_ecdsa, Config),   
     ECCOpts = [{eccs, ['123_fake_curve']}],
     ecc_test_error(COpts, SOpts, [], ECCOpts, Config).
 
 client_ecdh_rsa_server_ecdhe_ecdsa_server_custom(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdh_rsa, ecdhe_ecdsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default},
+                                                       {client_chain, Default}], 
+                                                      ecdh_rsa, ecdhe_ecdsa, Config),
     ECCOpts = [{honor_ecc_order, true}, {eccs, [secp256r1, sect571r1]}],
-    case supported_eccs(ECCOpts) of
-        true -> ecc_test(secp256r1, COpts, SOpts, [], ECCOpts, Config);
-        false -> {skip, "unsupported named curves"}
-    end.
+     case supported_eccs(ECCOpts) of
+         true -> ecc_test(secp256r1, COpts, SOpts, [], ECCOpts, Config);
+         false -> {skip, "unsupported named curves"}
+     end.
 
 client_ecdh_rsa_server_ecdhe_rsa_server_custom(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdh_rsa, ecdhe_rsa, Config),
-    ECCOpts = [{honor_ecc_order, true}, {eccs, [secp256r1, sect571r1]}],
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}],
+                                                      ecdh_rsa, ecdhe_rsa, Config),
+     ECCOpts = [{honor_ecc_order, true}, {eccs, [secp256r1, sect571r1]}],
     case supported_eccs(ECCOpts) of
         true -> ecc_test(undefined, COpts, SOpts, [], ECCOpts, Config);
         false -> {skip, "unsupported named curves"}
     end.
 
 client_ecdhe_rsa_server_ecdhe_ecdsa_server_custom(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdhe_rsa, ecdhe_ecdsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+     {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                        {client_chain, Default}],
+                                                       ecdhe_rsa, ecdhe_ecdsa, Config),
     ECCOpts = [{honor_ecc_order, true}, {eccs, [secp256r1, sect571r1]}],
     case supported_eccs(ECCOpts) of
-        true -> ecc_test(secp256r1, COpts, SOpts, [], ECCOpts, Config);
+         true -> ecc_test(secp256r1, COpts, SOpts, [], ECCOpts, Config);
         false -> {skip, "unsupported named curves"}
     end.
 
 client_ecdhe_rsa_server_ecdhe_rsa_server_custom(Config) ->
-   {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([], ecdhe_rsa, ecdhe_rsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}], 
+                                                      ecdhe_rsa, ecdhe_rsa, Config),
     ECCOpts = [{honor_ecc_order, true}, {eccs, [secp256r1, sect571r1]}],
     case supported_eccs(ECCOpts) of
         true -> ecc_test(undefined, COpts, SOpts, [], ECCOpts, Config);
         false -> {skip, "unsupported named curves"}
-    end.
+     end.
 client_ecdhe_rsa_server_ecdh_rsa_server_custom(Config) ->
-   {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_peer_opts, 
-                                                        [{extensions, [{key_usage, [keyEncipherment]
-                                                                       }]}]}], ecdhe_rsa, ecdh_rsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    Ext = x509_test:extensions([{key_usage, [keyEncipherment]}]),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, [[], [], [{extensions, Ext}]]},
+                                                       {client_chain, Default}], 
+                                                      ecdhe_rsa, ecdh_rsa, Config),
     ECCOpts = [{honor_ecc_order, true}, {eccs, [secp256r1, sect571r1]}],
     case supported_eccs(ECCOpts) of
         true -> ecc_test(undefined, COpts, SOpts, [], ECCOpts, Config);
@@ -376,7 +446,10 @@ client_ecdhe_rsa_server_ecdh_rsa_server_custom(Config) ->
     end.
 
 client_ecdhe_ecdsa_server_ecdhe_ecdsa_server_custom(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([], ecdhe_ecdsa, ecdhe_ecdsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}], 
+                                                      ecdhe_ecdsa, ecdhe_ecdsa, Config),
     ECCOpts = [{honor_ecc_order, true}, {eccs, [secp256r1, sect571r1]}],
     case supported_eccs(ECCOpts) of
         true -> ecc_test(secp256r1, COpts, SOpts, [], ECCOpts, Config);
@@ -384,7 +457,10 @@ client_ecdhe_ecdsa_server_ecdhe_ecdsa_server_custom(Config) ->
     end.
 
 client_ecdhe_ecdsa_server_ecdhe_rsa_server_custom(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdhe_ecdsa, ecdhe_rsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}],
+                                                      ecdhe_ecdsa, ecdhe_rsa, Config),
     ECCOpts = [{honor_ecc_order, true}, {eccs, [secp256r1, sect571r1]}],
     case supported_eccs(ECCOpts) of
         true -> ecc_test(undefined, COpts, SOpts, [], ECCOpts, Config);
@@ -392,7 +468,10 @@ client_ecdhe_ecdsa_server_ecdhe_rsa_server_custom(Config) ->
     end.
 
 client_ecdhe_ecdsa_server_ecdhe_ecdsa_client_custom(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdhe_ecdsa, ecdhe_ecdsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}],
+                                                      ecdhe_ecdsa, ecdhe_ecdsa, Config),
     ECCOpts = [{eccs, [secp256r1, sect571r1]}],
     case supported_eccs(ECCOpts) of
         true -> ecc_test(secp256r1, COpts, SOpts, ECCOpts, [], Config);
@@ -400,7 +479,10 @@ client_ecdhe_ecdsa_server_ecdhe_ecdsa_client_custom(Config) ->
     end.
 
 client_ecdhe_rsa_server_ecdhe_ecdsa_client_custom(Config) ->
-    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([],ecdhe_rsa, ecdhe_ecdsa, Config),
+    Default = ssl_test_lib:default_cert_chain_conf(),
+    {COpts, SOpts} = ssl_test_lib:make_ec_cert_chains([{server_chain, Default}, 
+                                                       {client_chain, Default}],
+                                                      ecdhe_rsa, ecdhe_ecdsa, Config),
     ECCOpts = [{eccs, [secp256r1, sect571r1]}],
     case supported_eccs(ECCOpts) of
         true -> ecc_test(secp256r1, COpts, SOpts, ECCOpts, [], Config);
diff --git a/lib/ssl/test/ssl_alpn_handshake_SUITE.erl b/lib/ssl/test/ssl_alpn_handshake_SUITE.erl
index bd9011f3b6..055f05a900 100644
--- a/lib/ssl/test/ssl_alpn_handshake_SUITE.erl
+++ b/lib/ssl/test/ssl_alpn_handshake_SUITE.erl
@@ -103,8 +103,14 @@ init_per_group(GroupName, Config) ->
 	    Config
     end.
 
-end_per_group(_GroupName, Config) ->
-    Config.
+end_per_group(GroupName, Config) ->
+    case ssl_test_lib:is_tls_version(GroupName) of
+        true ->
+            ssl_test_lib:clean_tls_version(Config);
+        false ->
+            Config
+    end.
+
 
 init_per_testcase(_TestCase, Config) ->
     ssl_test_lib:ct_log_supported_protocol_versions(Config),
diff --git a/lib/ssl/test/ssl_basic_SUITE.erl b/lib/ssl/test/ssl_basic_SUITE.erl
index e4faf267b7..3b4ca40058 100644
--- a/lib/ssl/test/ssl_basic_SUITE.erl
+++ b/lib/ssl/test/ssl_basic_SUITE.erl
@@ -83,13 +83,14 @@ groups() ->
     ].
 
 tls_versions_groups ()->
-    [{group, renegotiate}, %% Should be in all_versions_groups not fixed for DTLS yet
+    [
      {group, api_tls},
      {group, tls_ciphers},
      {group, error_handling_tests_tls}].
 
 all_versions_groups ()->
     [{group, api},
+     {group, renegotiate},
      {group, ciphers},
      {group, ciphers_ec},
      {group, error_handling_tests}].
@@ -276,13 +277,12 @@ end_per_suite(_Config) ->
     application:stop(crypto).
 
 %%--------------------------------------------------------------------
-init_per_group(GroupName, Config) when GroupName == basic;
-                                       GroupName == basic_tls;
-                                       GroupName == options;
-                                       GroupName == options_tls;
-                                       GroupName == session ->
-    ssl_test_lib:init_tls_version_default(Config);
 
+init_per_group(GroupName, Config) when GroupName == basic_tls;
+                                       GroupName == options_tls;
+                                       GroupName == basic;
+                                       GroupName == options ->
+    ssl_test_lib:clean_tls_version(Config);                          
 init_per_group(GroupName, Config) ->
     case ssl_test_lib:is_tls_version(GroupName) andalso ssl_test_lib:sufficient_crypto_support(GroupName) of
 	true ->
@@ -297,8 +297,13 @@ init_per_group(GroupName, Config) ->
 	    end
     end.
 
-end_per_group(_GroupName, Config) ->
-    Config.
+end_per_group(GroupName, Config) ->
+  case ssl_test_lib:is_tls_version(GroupName) of
+      true ->
+          ssl_test_lib:clean_tls_version(Config);
+      false ->
+          Config
+  end.
 
 %%--------------------------------------------------------------------
 init_per_testcase(Case, Config) when Case ==  unordered_protocol_versions_client;
diff --git a/lib/ssl/test/ssl_certificate_verify_SUITE.erl b/lib/ssl/test/ssl_certificate_verify_SUITE.erl
index 6221cffdc1..0bc265fa10 100644
--- a/lib/ssl/test/ssl_certificate_verify_SUITE.erl
+++ b/lib/ssl/test/ssl_certificate_verify_SUITE.erl
@@ -110,8 +110,8 @@ init_per_group(tls, Config0) ->
     application:load(ssl),
     application:set_env(ssl, protocol_version, Version),
     ssl:start(),
-    Config = proplists:delete(protocol, Config0),
-    [{protocol, tls}, {version, tls_record:protocol_version(Version)} | Config];
+    Config = ssl_test_lib:init_tls_version(Version, Config0),
+    [{version, tls_record:protocol_version(Version)} | Config];
 
 init_per_group(dtls, Config0) ->
     Version = dtls_record:protocol_version(dtls_record:highest_protocol_version([])),
@@ -119,8 +119,8 @@ init_per_group(dtls, Config0) ->
     application:load(ssl),
     application:set_env(ssl, protocol_version, Version),
     ssl:start(),
-    Config = proplists:delete(protocol_opts, proplists:delete(protocol, Config0)),
-    [{protocol, dtls}, {protocol_opts, [{protocol, dtls}]}, {version, dtls_record:protocol_version(Version)} | Config];
+    Config = ssl_test_lib:init_tls_version(Version, Config0),
+    [{version, dtls_record:protocol_version(Version)} | Config];
 
 init_per_group(active, Config) ->
     [{active, true}, {receive_function, send_recv_result_active} | Config];
@@ -134,6 +134,9 @@ init_per_group(error_handling, Config) ->
 init_per_group(_, Config) ->
     Config.
 
+end_per_group(GroupName, Config) when GroupName == tls;
+                                      GroupName == dtls ->
+    ssl_test_lib:clean_tls_version(Config);
 end_per_group(_GroupName, Config) ->
     Config.
 
@@ -436,7 +439,7 @@ server_require_peer_cert_partial_chain_fun_fail(Config) when is_list(Config) ->
     [{_,_,_}, {_, IntermidiateCA, _} | _] = public_key:pem_decode(ServerCAs),
 
     PartialChain =  fun(_CertChain) ->
-			   ture = false %% crash on purpose
+                            ture = false %% crash on purpose
 		    end,
 
     Server = ssl_test_lib:start_server_error([{node, ServerNode}, {port, 0},
@@ -564,9 +567,12 @@ cert_expired() ->
 cert_expired(Config) when is_list(Config) ->
     {Year, Month, Day} = date(),
     Active = proplists:get_value(active, Config),
-    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{server_ca_0, 
-                                                                     [{validity, {{Year-2, Month, Day}, 
-                                                                                  {Year-1, Month, Day}}}]}], 
+    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{server_chain,
+                                                                     [[], 
+                                                                      [{validity, {{Year-2, Month, Day}, 
+                                                                                   {Year-1, Month, Day}}}],
+                                                                      []
+                                                                     ]}], 
                                                                    Config, "_expired"),
     ClientOpts = ssl_test_lib:ssl_options(ClientOpts0, Config),
     ServerOpts = ssl_test_lib:ssl_options(ServerOpts0, Config),                                                     
@@ -595,11 +601,11 @@ extended_key_usage_verify_server() ->
     [{doc,"Test cert that has a critical extended_key_usage extension in server cert"}].
 
 extended_key_usage_verify_server(Config) when is_list(Config) -> 
-    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{server_peer_opts, 
-                                                                     [{extensions, 
-                                                                       [{?'id-ce-extKeyUsage',
-                                                                         [?'id-kp-serverAuth'], true}]
-                                                                      }]}], Config, "_keyusage_server"),
+    Ext = x509_test:extensions([{?'id-ce-extKeyUsage',
+                                 [?'id-kp-serverAuth'], true}]),
+    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{server_chain, 
+                                                                     [[],[], [{extensions, Ext}]]}], Config, 
+                                                                   "_keyusage_server"),
     ClientOpts = ssl_test_lib:ssl_options(ClientOpts0, Config),
     ServerOpts = ssl_test_lib:ssl_options(ServerOpts0, Config),                                                     
     Active = proplists:get_value(active, Config),
@@ -629,14 +635,13 @@ extended_key_usage_verify_both() ->
     [{doc,"Test cert that has a critical extended_key_usage extension in client verify_peer mode"}].
 
 extended_key_usage_verify_both(Config) when is_list(Config) ->
-     {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{server_peer_opts, 
-                                                                      [{extensions, [{?'id-ce-extKeyUsage',
-                                                                                      [?'id-kp-serverAuth'], true}]
-                                                                      }]},
-                                                                     {client_peer_opts, 
-                                                                      [{extensions, [{?'id-ce-extKeyUsage',
-                                                                                      [?'id-kp-clientAuth'], true}]
-                                                                      }]}], Config, "_keyusage_both"),
+    ServerExt = x509_test:extensions([{?'id-ce-extKeyUsage',
+                                       [?'id-kp-serverAuth'], true}]),
+    ClientExt = x509_test:extensions([{?'id-ce-extKeyUsage',
+                                       [?'id-kp-clientAuth'], true}]),
+    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{client_chain, [[],[],[{extensions, ClientExt}]]},
+                                                                    {server_chain, [[],[],[{extensions, ServerExt}]]}], 
+                                                                   Config, "_keyusage_both"),
     ClientOpts = ssl_test_lib:ssl_options(ClientOpts0, Config),
     ServerOpts = ssl_test_lib:ssl_options(ServerOpts0, Config),        
     Active = proplists:get_value(active, Config),
@@ -665,10 +670,10 @@ critical_extension_verify_server() ->
     [{doc,"Test cert that has a critical unknown extension in verify_peer mode"}].
 
 critical_extension_verify_server(Config) when is_list(Config) ->
-    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{client_peer_opts, 
-                                                                     [{extensions, [{{2,16,840,1,113730,1,1},
-                                                                                      <<3,2,6,192>>, true}]
-                                                                      }]}], Config, "_client_unknown_extension"),
+    Ext = x509_test:extensions([{{2,16,840,1,113730,1,1}, <<3,2,6,192>>, true}]),
+    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{client_chain, 
+                                                                     [[],[], [{extensions, Ext}]]}], 
+                                                                   Config, "_client_unknown_extension"),
     ClientOpts = ssl_test_lib:ssl_options(ClientOpts0, Config),
     ServerOpts = ssl_test_lib:ssl_options(ServerOpts0, Config),              
     Active = proplists:get_value(active, Config),
@@ -702,10 +707,10 @@ critical_extension_verify_client() ->
     [{doc,"Test cert that has a critical unknown extension in verify_peer mode"}].
 
 critical_extension_verify_client(Config) when is_list(Config) ->
-    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{server_peer_opts, 
-                                                                     [{extensions, [{{2,16,840,1,113730,1,1},
-                                                                                     <<3,2,6,192>>, true}]
-                                                                      }]}], Config, "_server_unknown_extensions"),
+    Ext = x509_test:extensions([{{2,16,840,1,113730,1,1}, <<3,2,6,192>>, true}]),
+    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{server_chain, 
+                                                                     [[],[],[{extensions, Ext}]]}], 
+                                                                   Config, "_server_unknown_extensions"),
     ClientOpts = ssl_test_lib:ssl_options(ClientOpts0, Config),
     ServerOpts = ssl_test_lib:ssl_options(ServerOpts0, Config),              
     Active = proplists:get_value(active, Config),
@@ -738,11 +743,10 @@ critical_extension_verify_none() ->
     [{doc,"Test cert that has a critical unknown extension in verify_none mode"}].
 
 critical_extension_verify_none(Config) when is_list(Config) ->
-    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{client_peer_opts, 
-                                                                     [{extensions, 
-                                                                       [{{2,16,840,1,113730,1,1},
-                                                                          <<3,2,6,192>>, true}]
-                                                                      }]}], Config, "_unknown_extensions"),
+    Ext = x509_test:extensions([{{2,16,840,1,113730,1,1}, <<3,2,6,192>>, true}]),
+    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{server_chain, 
+                                                                     [[],[], [{extensions, Ext}]]}], 
+                                                                   Config, "_unknown_extensions"),
     ClientOpts = ssl_test_lib:ssl_options(ClientOpts0, Config),
     ServerOpts = ssl_test_lib:ssl_options(ServerOpts0, Config),             
     Active = proplists:get_value(active, Config),
@@ -777,12 +781,7 @@ no_authority_key_identifier() ->
       " but are present in trusted certs db."}].
 
 no_authority_key_identifier(Config) when is_list(Config) ->
-   {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{server_peer_opts, 
-                                                                      [{extensions, [{auth_key_id, undefined}]
-                                                                      }]},
-                                                                     {client_peer_opts, 
-                                                                      [{extensions, [{auth_key_id, undefined}]
-                                                                       }]}], Config, "_peer_no_auth_key_id"),
+   {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([], Config, "_peer_no_auth_key_id"),
     ClientOpts = ssl_test_lib:ssl_options(ClientOpts0, Config),
     ServerOpts = ssl_test_lib:ssl_options(ServerOpts0, Config),        
 
@@ -819,14 +818,10 @@ no_authority_key_identifier_keyEncipherment() ->
       " authorityKeyIdentifier extension, but are present in trusted certs db."}].
 
 no_authority_key_identifier_keyEncipherment(Config) when is_list(Config) ->
-    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{server_peer_opts, 
-                                                                      [{extensions, [{auth_key_id, undefined},
-                                                                                     {key_usage, [digitalSignature,
-                                                                                                  keyEncipherment]}]
-                                                                      }]},
-                                                                     {client_peer_opts, 
-                                                                      [{extensions, [{auth_key_id, undefined}]
-                                                                       }]}], Config, "_peer_keyEncipherment"),
+    ClientExt = x509_test:extensions([{key_usage, [digitalSignature, keyEncipherment]}]),
+    {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{client_chain, 
+                                                                     [[],[],[{extensions, ClientExt}]]}], 
+                                                                   Config, "_peer_keyEncipherment"),
     ClientOpts = ssl_test_lib:ssl_options(ClientOpts0, Config),
     ServerOpts = ssl_test_lib:ssl_options(ServerOpts0, Config),        
     {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
@@ -929,12 +924,10 @@ client_with_cert_cipher_suites_handshake() ->
     [{doc, "Test that client with a certificate without keyEncipherment usage "
     " extension can connect to a server with restricted cipher suites "}].
 client_with_cert_cipher_suites_handshake(Config) when is_list(Config) ->
-  {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{client_peer_opts, 
-                                                                     [{extensions, 
-                                                                       [{key_usage, [digitalSignature]}]
-                                                                      }]}], Config, "_sign_only_extensions"),
-    
-
+    Ext = x509_test:extensions([{key_usage, [digitalSignature]}]),
+  {ClientOpts0, ServerOpts0} = ssl_test_lib:make_rsa_cert_chains([{client_chain, 
+                                                                     [[], [], [{extensions, Ext}]]}], 
+                                                                 Config, "_sign_only_extensions"),
     ClientOpts =  ssl_test_lib:ssl_options(ClientOpts0, Config),
     ServerOpts =  ssl_test_lib:ssl_options(ServerOpts0, Config),
 
diff --git a/lib/ssl/test/ssl_npn_handshake_SUITE.erl b/lib/ssl/test/ssl_npn_handshake_SUITE.erl
index a02881f1ae..6bf2aa2786 100644
--- a/lib/ssl/test/ssl_npn_handshake_SUITE.erl
+++ b/lib/ssl/test/ssl_npn_handshake_SUITE.erl
@@ -95,8 +95,13 @@ init_per_group(GroupName, Config) ->
 	    Config
     end.
 
-end_per_group(_GroupName, Config) ->
-    Config.
+end_per_group(GroupName, Config) ->
+    case ssl_test_lib:is_tls_version(GroupName) of
+        true ->
+            ssl_test_lib:clean_tls_version(Config);
+        false ->
+            Config
+    end.
 
 init_per_testcase(_TestCase, Config) ->
     ssl_test_lib:ct_log_supported_protocol_versions(Config),
diff --git a/lib/ssl/test/ssl_packet_SUITE.erl b/lib/ssl/test/ssl_packet_SUITE.erl
index 5e40200158..3261244ace 100644
--- a/lib/ssl/test/ssl_packet_SUITE.erl
+++ b/lib/ssl/test/ssl_packet_SUITE.erl
@@ -63,8 +63,10 @@ groups() ->
      {'tlsv1.1', [], socket_packet_tests() ++ protocol_packet_tests()},
      {'tlsv1', [], socket_packet_tests() ++ protocol_packet_tests()},
      {'sslv3', [], socket_packet_tests() ++ protocol_packet_tests()},
-     {'dtlsv1.2', [], protocol_packet_tests()},
-     {'dtlsv1', [],  protocol_packet_tests()}
+     %% We will not support any packet types if the transport is
+     %% not reliable. We might support it for DTLS over SCTP in the future 
+     {'dtlsv1.2', [], [reject_packet_opt]},
+     {'dtlsv1', [],  [reject_packet_opt]}
     ].
 
 socket_packet_tests() ->
@@ -185,8 +187,13 @@ init_per_group(GroupName, Config) ->
     end.
 
 
-end_per_group(_GroupName, Config) ->
-    Config.
+end_per_group(GroupName, Config) ->
+    case ssl_test_lib:is_tls_version(GroupName) of
+        true ->
+            ssl_test_lib:clean_tls_version(Config);
+        false ->
+            Config
+    end.
 
 init_per_testcase(_TestCase, Config) ->
     ct:timetrap({seconds, ?BASE_TIMEOUT_SECONDS}),
@@ -1919,6 +1926,25 @@ header_decode_two_bytes_one_sent_passive(Config) when is_list(Config) ->
     ssl_test_lib:close(Client).
 
 %%--------------------------------------------------------------------
+reject_packet_opt() ->
+    [{doc,"Test packet option is rejected for DTLS over udp"}].
+
+reject_packet_opt(Config) when is_list(Config) ->
+
+    ServerOpts = ssl_test_lib:ssl_options(server_opts, Config),
+       
+    {error,{options,{not_supported,{packet,4}}}} = 
+        ssl:listen(9999, [{packet, 4} | ServerOpts]),
+    {error,{options,{not_supported,{packet_size,1}}}} =  
+        ssl:listen(9999, [{packet_size, 1} | ServerOpts]),
+    {error,{options,{not_supported,{header,1}}}} =
+        ssl:listen(9999, [{header, 1} | ServerOpts]),
+    
+    client_reject_packet_opt(Config, {packet,4}),
+    client_reject_packet_opt(Config, {packet_size, 1}),
+    client_reject_packet_opt(Config, {header, 1}).
+
+%%--------------------------------------------------------------------
 %% Internal functions ------------------------------------------------
 %%--------------------------------------------------------------------
 
@@ -2240,3 +2266,23 @@ add_tpkt_header(IOList) when is_list(IOList) ->
     Binary = list_to_binary(IOList),
     L = size(Binary) + 4,
     [3, 0, ((L) bsr 8) band 16#ff, (L) band 16#ff , Binary].
+
+
+client_reject_packet_opt(Config, PacketOpt) ->
+    ServerOpts = ssl_test_lib:ssl_options(server_opts, Config),
+    ClientOpts = ssl_test_lib:ssl_options(client_opts, Config),
+    {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+
+    Server = ssl_test_lib:start_server([{node, ClientNode}, {port, 0},
+                                        {from, self()},
+                                        {mfa, {ssl_test_lib, no_result_msg ,[]}},
+                                        {options, ServerOpts}]),
+    Port = ssl_test_lib:inet_port(Server),
+    Client = ssl_test_lib:start_client_error([{node, ServerNode}, {port, Port},
+                                              {host, Hostname},
+                                              {from, self()},
+                                              {mfa, {ssl_test_lib, no_result_msg, []}},
+                                              {options, [PacketOpt |
+                                                         ClientOpts]}]),
+    
+    ssl_test_lib:check_result(Client, {error, {options, {not_supported, PacketOpt}}}).
diff --git a/lib/ssl/test/ssl_payload_SUITE.erl b/lib/ssl/test/ssl_payload_SUITE.erl
index cb1957327a..ef05241759 100644
--- a/lib/ssl/test/ssl_payload_SUITE.erl
+++ b/lib/ssl/test/ssl_payload_SUITE.erl
@@ -95,8 +95,13 @@ init_per_group(GroupName, Config) ->
 	    Config
     end.
 
-end_per_group(_GroupName, Config) ->
-    Config.
+end_per_group(GroupName, Config) ->
+    case ssl_test_lib:is_tls_version(GroupName) of
+        true ->
+            ssl_test_lib:clean_tls_version(Config);
+        false ->
+            Config
+    end.
 
 init_per_testcase(TestCase, Config) when TestCase == server_echos_passive_huge;
 					 TestCase == server_echos_active_once_huge;
diff --git a/lib/ssl/test/ssl_sni_SUITE.erl b/lib/ssl/test/ssl_sni_SUITE.erl
index 03676cb828..7e78c41444 100644
--- a/lib/ssl/test/ssl_sni_SUITE.erl
+++ b/lib/ssl/test/ssl_sni_SUITE.erl
@@ -25,6 +25,8 @@
 
 -include_lib("common_test/include/ct.hrl").
 -include_lib("public_key/include/public_key.hrl").
+-include_lib("kernel/include/inet.hrl").
+
 
 %%--------------------------------------------------------------------
 %% Common Test interface functions -----------------------------------
@@ -55,7 +57,11 @@ sni_tests() ->
      sni_no_match,
      no_sni_header_fun, 
      sni_match_fun, 
-     sni_no_match_fun].
+     sni_no_match_fun,
+     dns_name,
+     ip_fallback,
+     no_ip_fallback,
+     dns_name_reuse].
 
 init_per_suite(Config0) ->
     catch crypto:stop(),
@@ -82,6 +88,13 @@ end_per_suite(_) ->
     ssl:stop(),
     application:stop(crypto).
 
+init_per_testcase(TestCase, Config) when TestCase == ip_fallback;
+                                         TestCase == no_ip_fallback;
+                                         TestCase == dns_name_reuse ->
+    ssl_test_lib:ct_log_supported_protocol_versions(Config),
+    ct:log("Ciphers: ~p~n ", [ ssl:cipher_suites()]),
+    ct:timetrap({seconds, 20}),
+    Config;
 init_per_testcase(_TestCase, Config) ->
     ssl_test_lib:ct_log_supported_protocol_versions(Config),
     ct:log("Ciphers: ~p~n ", [ ssl:cipher_suites()]),
@@ -112,7 +125,119 @@ sni_no_match(Config) ->
 sni_no_match_fun(Config) ->
     run_sni_fun_handshake(Config, "c.server", undefined, "server Peer cert").
 
+dns_name(Config) ->
+    Hostname = "OTP.test.server",
+    #{server_config := ServerConf,
+      client_config := ClientConf} = public_key:pkix_test_data(#{server_chain => 
+                                                                     #{root => [{key, ssl_test_lib:hardcode_rsa_key(1)}],
+                                                                       intermediates => [[{key, ssl_test_lib:hardcode_rsa_key(2)}]],
+                                                                       peer => [{extensions,  [#'Extension'{extnID = 
+                                                                                                                ?'id-ce-subjectAltName',
+                                                                                                            extnValue = [{dNSName, Hostname}],
+                                                                                                            critical = false}]},
+                                                                                {key, ssl_test_lib:hardcode_rsa_key(3)}]},
+                                                                 client_chain => 
+                                                                     #{root => [{key, ssl_test_lib:hardcode_rsa_key(4)}],
+                                                                       intermediates => [[{key, ssl_test_lib:hardcode_rsa_key(5)}]],
+                                                                       peer => [{key, ssl_test_lib:hardcode_rsa_key(6)}]}}),
+    unsuccessfull_connect(ServerConf, [{verify, verify_peer} | ClientConf], undefined, Config),
+    successfull_connect(ServerConf, [{verify, verify_peer}, {server_name_indication, Hostname} | ClientConf], undefined, Config),
+    unsuccessfull_connect(ServerConf, [{verify, verify_peer}, {server_name_indication, "foo"} | ClientConf], undefined, Config),
+    successfull_connect(ServerConf, [{verify, verify_peer}, {server_name_indication, disable} | ClientConf], undefined, Config).
+
+ip_fallback(Config) ->
+    Hostname = net_adm:localhost(),
+    {ok, #hostent{h_addr_list = [IP |_]}} = inet:gethostbyname(net_adm:localhost()),
+    IPStr = tuple_to_list(IP),
+    #{server_config := ServerConf,
+      client_config := ClientConf} = public_key:pkix_test_data(#{server_chain => 
+                                                                     #{root => [{key, ssl_test_lib:hardcode_rsa_key(1)}],
+                                                                       intermediates => [[{key, ssl_test_lib:hardcode_rsa_key(2)}]],
+                                                                       peer => [{extensions, [#'Extension'{extnID = 
+                                                                                                               ?'id-ce-subjectAltName',
+                                                                                                           extnValue = [{dNSName, Hostname},
+                                                                                                                        {iPAddress, IPStr}],
+                                                                                                           critical = false}]},
+                                                                                {key, ssl_test_lib:hardcode_rsa_key(3)}]},
+                                                                 client_chain => 
+                                                                     #{root => [{key, ssl_test_lib:hardcode_rsa_key(4)}],
+                                                                       intermediates => [[{key, ssl_test_lib:hardcode_rsa_key(5)}]],
+                                                                       peer => [{key, ssl_test_lib:hardcode_rsa_key(6)}]}}),
+    successfull_connect(ServerConf, [{verify, verify_peer} | ClientConf], Hostname, Config),
+    successfull_connect(ServerConf, [{verify, verify_peer} | ClientConf], IP, Config).
+
+no_ip_fallback(Config) ->
+    Hostname = net_adm:localhost(),
+    {ok, #hostent{h_addr_list = [IP |_]}} = inet:gethostbyname(net_adm:localhost()),
+    #{server_config := ServerConf,
+      client_config := ClientConf} = public_key:pkix_test_data(#{server_chain => 
+                                                                     #{root => [{key, ssl_test_lib:hardcode_rsa_key(1)}],
+                                                                       intermediates => [[{key, ssl_test_lib:hardcode_rsa_key(2)}]],
+                                                                       peer => [{extensions, [#'Extension'{extnID = 
+                                                                                                               ?'id-ce-subjectAltName',
+                                                                                                           extnValue = [{dNSName, Hostname}],
+                                                                                                           critical = false}]},
+                                                                                {key, ssl_test_lib:hardcode_rsa_key(3)}
+                                                                               ]},
+                                                                 client_chain => 
+                                                                     #{root => [{key, ssl_test_lib:hardcode_rsa_key(4)}],
+                                                                       intermediates => [[{key, ssl_test_lib:hardcode_rsa_key(5)}]],
+                                                                       peer => [{key, ssl_test_lib:hardcode_rsa_key(6)}]}}),
+    successfull_connect(ServerConf, [{verify, verify_peer} | ClientConf], Hostname, Config),
+    unsuccessfull_connect(ServerConf, [{verify, verify_peer} | ClientConf], IP, Config).
 
+dns_name_reuse(Config) ->
+    SNIHostname = "OTP.test.server",
+    #{server_config := ServerConf,
+      client_config := ClientConf} = public_key:pkix_test_data(#{server_chain => 
+                                                                     #{root => [{key, ssl_test_lib:hardcode_rsa_key(1)}],
+                                                                       intermediates => [[{key, ssl_test_lib:hardcode_rsa_key(2)}]],
+                                                                       peer => [{extensions,  [#'Extension'{extnID = 
+                                                                                                                ?'id-ce-subjectAltName',
+                                                                                                            extnValue = [{dNSName, SNIHostname}],
+                                                                                                            critical = false}
+                                                                                              ]},
+                                                                                {key, ssl_test_lib:hardcode_rsa_key(3)}
+                                                                               ]},
+                                                                 client_chain => 
+                                                                     #{root => [{key, ssl_test_lib:hardcode_rsa_key(4)}],
+                                                                       intermediates => [[{key, ssl_test_lib:hardcode_rsa_key(5)}]],
+                                                                       peer => [{key, ssl_test_lib:hardcode_rsa_key(6)}]}}),
+    
+    {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+  
+    unsuccessfull_connect(ServerConf, [{verify, verify_peer} | ClientConf], undefined, Config),
+    
+    Server = 
+	ssl_test_lib:start_server([{node, ServerNode}, {port, 0}, 
+				   {from, self()},
+				   {mfa, {ssl_test_lib, session_info_result, []}},
+				   {options, ServerConf}]),
+    Port = ssl_test_lib:inet_port(Server),
+    Client0 =
+	ssl_test_lib:start_client([{node, ClientNode}, 
+                                   {port, Port}, {host, Hostname},
+				   {mfa, {ssl_test_lib, no_result, []}},
+                                   {from, self()}, {options, [{verify, verify_peer}, 
+                                                              {server_name_indication, SNIHostname} | ClientConf]}]),   
+    receive
+        {Server, _} ->
+            ok
+    end,
+    
+    Server ! {listen, {mfa, {ssl_test_lib, no_result, []}}},
+    
+    %% Make sure session is registered
+    ct:sleep(1000),
+    
+    Client1 =
+	ssl_test_lib:start_client_error([{node, ClientNode},
+                                         {port, Port}, {host, Hostname},
+                                         {mfa, {ssl_test_lib, session_info_result, []}},
+                                         {from, self()},  {options, [{verify, verify_peer} | ClientConf]}]),
+    
+    ssl_test_lib:check_result(Client1, {error, {tls_alert, "handshake failure"}}),
+    ssl_test_lib:close(Client0).
 %%--------------------------------------------------------------------
 %% Internal Functions ------------------------------------------------
 %%--------------------------------------------------------------------
@@ -217,3 +342,37 @@ run_handshake(Config, SNIHostname, ExpectedSNIHostname, ExpectedCN) ->
     ssl_test_lib:check_result(Server, ExpectedSNIHostname, Client, ExpectedCN),
     ssl_test_lib:close(Server),
     ssl_test_lib:close(Client).
+
+successfull_connect(ServerOptions, ClientOptions, Hostname0, Config) ->  
+    {ClientNode, ServerNode, Hostname1} = ssl_test_lib:run_where(Config),
+    Hostname = host_name(Hostname0, Hostname1),
+    Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+                                        {from, self()}, {mfa, {ssl_test_lib, send_recv_result_active, []}},
+                                        {options, ServerOptions}]),
+    Port = ssl_test_lib:inet_port(Server),
+    Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+                                        {host, Hostname}, {from, self()},
+                                        {mfa, {ssl_test_lib, send_recv_result_active, []}},
+                                        {options, ClientOptions}]),
+    ssl_test_lib:check_result(Server, ok, Client, ok),
+    ssl_test_lib:close(Server),
+    ssl_test_lib:close(Client).
+
+unsuccessfull_connect(ServerOptions, ClientOptions, Hostname0, Config) ->
+    {ClientNode, ServerNode, Hostname1} = ssl_test_lib:run_where(Config),
+    Hostname = host_name(Hostname0, Hostname1),
+    Server = ssl_test_lib:start_server_error([{node, ServerNode}, {port, 0},
+					      {from, self()},
+					      {options, ServerOptions}]),
+    Port = ssl_test_lib:inet_port(Server),
+    Client = ssl_test_lib:start_client_error([{node, ClientNode}, {port, Port},
+					      {host, Hostname},
+					      {from, self()}, 
+					      {options, ClientOptions}]),
+    
+    ssl_test_lib:check_result(Server, {error, {tls_alert, "handshake failure"}},
+			      Client, {error, {tls_alert, "handshake failure"}}).
+host_name(undefined, Hostname) ->
+    Hostname;
+host_name(Hostname, _) ->
+    Hostname.
diff --git a/lib/ssl/test/ssl_test_lib.erl b/lib/ssl/test/ssl_test_lib.erl
index 565beebcea..4e7252f469 100644
--- a/lib/ssl/test/ssl_test_lib.erl
+++ b/lib/ssl/test/ssl_test_lib.erl
@@ -449,11 +449,12 @@ make_dsa_cert(Config) ->
     CryptoSupport = crypto:supports(),
     case proplists:get_bool(dss, proplists:get_value(public_keys, CryptoSupport)) of
         true ->
+            ClientChain = proplists:get_value(client_chain, Config, default_cert_chain_conf()),
+            ServerChain = proplists:get_value(server_chain, Config, default_cert_chain_conf()),
+            CertChainConf = gen_conf(dsa, dsa, ClientChain, ServerChain),
             ClientFileBase = filename:join([proplists:get_value(priv_dir, Config), "dsa"]),
             ServerFileBase = filename:join([proplists:get_value(priv_dir, Config), "dsa"]),
-            KeyGenSpec = key_gen_info(dsa, dsa),
-            
-            GenCertData = x509_test:gen_test_certs([{digest, sha} | KeyGenSpec]),
+            GenCertData = public_key:pkix_test_data(CertChainConf),
             [{server_config, ServerConf}, 
              {client_config, ClientConf}] = 
                 x509_test:gen_pem_config_files(GenCertData, ClientFileBase, ServerFileBase),
@@ -469,12 +470,13 @@ make_dsa_cert(Config) ->
       false ->
           Config
   end.
-make_rsa_cert_chains(ChainConf, Config, Suffix) ->
-   CryptoSupport = crypto:supports(),
-    KeyGenSpec = key_gen_info(rsa, rsa),
+make_rsa_cert_chains(UserConf, Config, Suffix) ->
+    ClientChain = proplists:get_value(client_chain, UserConf, default_cert_chain_conf()),
+    ServerChain = proplists:get_value(server_chain, UserConf, default_cert_chain_conf()),
+    CertChainConf = gen_conf(rsa, rsa, ClientChain, ServerChain),
     ClientFileBase = filename:join([proplists:get_value(priv_dir, Config), "rsa" ++ Suffix]),
     ServerFileBase = filename:join([proplists:get_value(priv_dir, Config), "rsa" ++ Suffix]),
-    GenCertData = x509_test:gen_test_certs([{digest, appropriate_sha(CryptoSupport)} | KeyGenSpec] ++ ChainConf),
+    GenCertData = public_key:pkix_test_data(CertChainConf),
     [{server_config, ServerConf}, 
      {client_config, ClientConf}] = 
         x509_test:gen_pem_config_files(GenCertData, ClientFileBase, ServerFileBase),               
@@ -482,12 +484,13 @@ make_rsa_cert_chains(ChainConf, Config, Suffix) ->
      [{reuseaddr, true}, {verify, verify_peer} | ServerConf]
     }.
 
-make_ec_cert_chains(ChainConf, ClientChainType, ServerChainType, Config) ->
-    CryptoSupport = crypto:supports(),
-    KeyGenSpec = key_gen_info(ClientChainType, ServerChainType),
+make_ec_cert_chains(UserConf, ClientChainType, ServerChainType, Config) ->
+    ClientChain = proplists:get_value(client_chain, UserConf, default_cert_chain_conf()),
+    ServerChain = proplists:get_value(server_chain, UserConf, default_cert_chain_conf()),
+    CertChainConf = gen_conf(ClientChainType, ServerChainType, ClientChain, ServerChain),
     ClientFileBase = filename:join([proplists:get_value(priv_dir, Config), atom_to_list(ClientChainType)]),
     ServerFileBase = filename:join([proplists:get_value(priv_dir, Config), atom_to_list(ServerChainType)]),
-    GenCertData = x509_test:gen_test_certs([{digest, appropriate_sha(CryptoSupport)} | KeyGenSpec] ++ ChainConf),
+    GenCertData = public_key:pkix_test_data(CertChainConf),
     [{server_config, ServerConf}, 
      {client_config, ClientConf}] = 
         x509_test:gen_pem_config_files(GenCertData, ClientFileBase, ServerFileBase),               
@@ -495,56 +498,113 @@ make_ec_cert_chains(ChainConf, ClientChainType, ServerChainType, Config) ->
      [{reuseaddr, true}, {verify, verify_peer} | ServerConf]
     }.
 
-key_gen_info(ClientChainType, ServerChainType) ->
-    key_gen_spec("client", ClientChainType) ++ key_gen_spec("server", ServerChainType).
+default_cert_chain_conf() ->
+    %% Use only default options
+    [[],[],[]].
+
+gen_conf(ClientChainType, ServerChainType, UserClient, UserServer) ->
+    ClientTag = conf_tag("client"),
+    ServerTag = conf_tag("server"),
+
+    DefaultClient = chain_spec(client, ClientChainType), 
+    DefaultServer = chain_spec(server, ServerChainType),
+    
+    ClientConf = merge_chain_spec(UserClient, DefaultClient, []),
+    ServerConf = merge_chain_spec(UserServer, DefaultServer, []),
+    
+    new_format([{ClientTag, ClientConf}, {ServerTag, ServerConf}]).
+
+new_format(Conf) ->
+    CConf = proplists:get_value(client_chain, Conf),
+    SConf = proplists:get_value(server_chain, Conf),
+    #{server_chain => proplist_to_map(SConf),
+      client_chain => proplist_to_map(CConf)}.
 
-key_gen_spec(Role, ecdh_rsa) ->
+proplist_to_map([Head | Rest]) -> 
+    [Last | Tail] = lists:reverse(Rest),
+    #{root => Head,
+      intermediates => lists:reverse(Tail),
+      peer => Last}.
+
+conf_tag(Role) ->
+    list_to_atom(Role ++ "_chain").
+
+chain_spec(_Role, ecdh_rsa) ->
+    Digest = {digest, appropriate_sha(crypto:supports())},
+    CurveOid = hd(tls_v1:ecc_curves(0)),
+     [[Digest, {key, {namedCurve, CurveOid}}],
+      [Digest, {key, hardcode_rsa_key(1)}],
+      [Digest, {key, {namedCurve, CurveOid}}]];
+
+chain_spec(_Role, ecdhe_ecdsa) ->
+    Digest = {digest, appropriate_sha(crypto:supports())},
     CurveOid = hd(tls_v1:ecc_curves(0)),
-    [{list_to_atom(Role ++ "_key_gen"),  {namedCurve, CurveOid}},
-     {list_to_atom(Role ++ "_key_gen_chain"),  [hardcode_rsa_key(1),
-                                                {namedCurve, CurveOid}]}
-    ];
-key_gen_spec(Role, ecdhe_ecdsa) ->
+    [[Digest, {key, {namedCurve, CurveOid}}],
+     [Digest, {key, {namedCurve, CurveOid}}],
+     [Digest, {key, {namedCurve, CurveOid}}]];
+
+chain_spec(_Role, ecdh_ecdsa) ->
+    Digest = {digest, appropriate_sha(crypto:supports())},
     CurveOid = hd(tls_v1:ecc_curves(0)),
-     [{list_to_atom(Role ++ "_key_gen"),  {namedCurve, CurveOid}},
-      {list_to_atom(Role ++ "_key_gen_chain"),  [{namedCurve, CurveOid},
-                                                 {namedCurve, CurveOid}]}
-    ];
-key_gen_spec(Role, ecdh_ecdsa) ->
+    [[Digest, {key, {namedCurve, CurveOid}}],
+     [Digest, {key, {namedCurve, CurveOid}}],
+     [Digest, {key, {namedCurve, CurveOid}}]];
+chain_spec(_Role, ecdhe_rsa) ->
+    Digest = {digest, appropriate_sha(crypto:supports())},
+    [[Digest, {key, hardcode_rsa_key(1)}],
+     [Digest, {key, hardcode_rsa_key(2)}],
+     [Digest, {key, hardcode_rsa_key(3)}]];
+chain_spec(_Role, ecdsa) ->
+    Digest = {digest, appropriate_sha(crypto:supports())},
     CurveOid = hd(tls_v1:ecc_curves(0)),
-    [{list_to_atom(Role ++ "_key_gen"),  {namedCurve, CurveOid}},
-     {list_to_atom(Role ++ "_key_gen_chain"),  [{namedCurve, CurveOid},
-                                                {namedCurve, CurveOid}]}
-    ];
-key_gen_spec(Role, ecdhe_rsa) ->
-    [{list_to_atom(Role ++ "_key_gen"),  hardcode_rsa_key(1)},
-     {list_to_atom(Role ++ "_key_gen_chain"),  [hardcode_rsa_key(2),
-                                                hardcode_rsa_key(3)]}
-    ];
-key_gen_spec(Role, rsa) ->
-    [{list_to_atom(Role ++ "_key_gen"),  hardcode_rsa_key(1)},
-     {list_to_atom(Role ++ "_key_gen_chain"),  [hardcode_rsa_key(2),
-                                                hardcode_rsa_key(3)]}
-    ];
-key_gen_spec(Role, dsa) ->
-    [{list_to_atom(Role ++ "_key_gen"),  hardcode_dsa_key(1)},
-     {list_to_atom(Role ++ "_key_gen_chain"),  [hardcode_dsa_key(2),
-                                                hardcode_dsa_key(3)]}
-    ].
+    [[Digest, {key, {namedCurve, CurveOid}}],
+     [Digest, {key, {namedCurve, CurveOid}}],
+     [Digest, {key, {namedCurve, CurveOid}}]];
+chain_spec(_Role, rsa) ->
+    Digest = {digest, appropriate_sha(crypto:supports())},
+    [[Digest, {key, hardcode_rsa_key(1)}],
+                                      [Digest, {key, hardcode_rsa_key(2)}],
+                                      [Digest, {key, hardcode_rsa_key(3)}]];
+chain_spec(_Role, dsa) ->
+    Digest = {digest, appropriate_sha(crypto:supports())},
+    [[Digest, {key, hardcode_dsa_key(1)}],
+     [Digest, {key, hardcode_dsa_key(2)}],
+     [Digest, {key, hardcode_dsa_key(3)}]].
+
+merge_chain_spec([], [], Acc)->
+    lists:reverse(Acc);
+merge_chain_spec([User| UserRest], [Default | DefaultRest], Acc) ->
+    Merge = merge_spec(User, Default, confs(), []),
+    merge_chain_spec(UserRest, DefaultRest, [Merge | Acc]).
+
+confs() ->
+    [key, digest, validity, extensions].
+
+merge_spec(_, _, [], Acc) ->
+    Acc;
+merge_spec(User, Default, [Conf | Rest], Acc) ->
+    case proplists:get_value(Conf, User, undefined) of
+        undefined ->
+            case proplists:get_value(Conf, Default, undefined) of
+                undefined ->
+                    merge_spec(User, Default, Rest, Acc);
+                Value  ->
+                    merge_spec(User, Default, Rest, [{Conf, Value} | Acc])
+            end;
+        Value ->
+                merge_spec(User, Default, Rest, [{Conf, Value} | Acc])
+    end.
+
 make_ecdsa_cert(Config) ->
     CryptoSupport = crypto:supports(),
     case proplists:get_bool(ecdsa, proplists:get_value(public_keys, CryptoSupport)) of
         true ->
             ClientFileBase = filename:join([proplists:get_value(priv_dir, Config), "ecdsa"]),
             ServerFileBase = filename:join([proplists:get_value(priv_dir, Config), "ecdsa"]),
-            CurveOid = hd(tls_v1:ecc_curves(0)),
-            GenCertData = x509_test:gen_test_certs([{server_key_gen, {namedCurve, CurveOid}}, 
-                                                    {client_key_gen, {namedCurve, CurveOid}},
-                                                    {server_key_gen_chain, [{namedCurve, CurveOid},
-                                                                            {namedCurve, CurveOid}]},
-                                                    {client_key_gen_chain, [{namedCurve, CurveOid},
-                                                                            {namedCurve, CurveOid}]},
-                                                    {digest, appropriate_sha(CryptoSupport)}]),
+            ClientChain = proplists:get_value(client_chain, Config, default_cert_chain_conf()),
+            ServerChain = proplists:get_value(server_chain, Config, default_cert_chain_conf()),
+            CertChainConf = gen_conf(ecdsa, ecdsa, ClientChain, ServerChain),
+            GenCertData = public_key:pkix_test_data(CertChainConf),
             [{server_config, ServerConf}, 
              {client_config, ClientConf}] = 
                 x509_test:gen_pem_config_files(GenCertData, ClientFileBase, ServerFileBase),               
@@ -563,13 +623,10 @@ make_rsa_cert(Config) ->
         true ->
             ClientFileBase = filename:join([proplists:get_value(priv_dir, Config), "rsa"]),
             ServerFileBase = filename:join([proplists:get_value(priv_dir, Config), "rsa"]),
-            GenCertData = x509_test:gen_test_certs([{server_key_gen, hardcode_rsa_key(1)}, 
-                                                    {client_key_gen, hardcode_rsa_key(2)},
-                                                    {server_key_gen_chain, [hardcode_rsa_key(3),
-                                                                            hardcode_rsa_key(4)]},
-                                                    {client_key_gen_chain, [hardcode_rsa_key(5),
-                                                                            hardcode_rsa_key(6)]},
-                                                    {digest, appropriate_sha(CryptoSupport)}]),
+            ClientChain = proplists:get_value(client_chain, Config, default_cert_chain_conf()),
+            ServerChain = proplists:get_value(server_chain, Config, default_cert_chain_conf()),
+            CertChainConf = gen_conf(rsa, rsa, ClientChain, ServerChain),
+            GenCertData = public_key:pkix_test_data(CertChainConf),
             [{server_config, ServerConf}, 
              {client_config, ClientConf}] = 
                 x509_test:gen_pem_config_files(GenCertData, ClientFileBase, ServerFileBase),               
@@ -601,16 +658,10 @@ make_ecdh_rsa_cert(Config) ->
 	true ->
             ClientFileBase = filename:join([proplists:get_value(priv_dir, Config), "ecdh_rsa"]),
             ServerFileBase = filename:join([proplists:get_value(priv_dir, Config), "ecdh_rsa"]),
-            CurveOid = hd(tls_v1:ecc_curves(0)),
-            GenCertData = x509_test:gen_test_certs([{server_key_gen, {namedCurve, CurveOid}}, 
-                                                    {client_key_gen, {namedCurve, CurveOid}},
-                                                    {server_key_gen_chain, [hardcode_rsa_key(1),
-                                                                            {namedCurve, CurveOid}
-                                                                           ]},
-                                                    {client_key_gen_chain, [hardcode_rsa_key(2),
-                                                                            {namedCurve, CurveOid}
-                                                                           ]},
-                                                    {digest, appropriate_sha(CryptoSupport)}]),
+            ClientChain = proplists:get_value(client_chain, Config, default_cert_chain_conf()),
+            ServerChain = proplists:get_value(server_chain, Config, default_cert_chain_conf()),
+            CertChainConf = gen_conf(ecdh_rsa, ecdh_rsa, ClientChain, ServerChain),
+            GenCertData = public_key:pkix_test_data(CertChainConf),
             [{server_config, ServerConf}, 
              {client_config, ClientConf}] = 
                 x509_test:gen_pem_config_files(GenCertData, ClientFileBase, ServerFileBase),
@@ -1115,8 +1166,7 @@ init_tls_version(Version, Config) ->
     NewConfig = proplists:delete(protocol_opts, proplists:delete(protocol, Config)),
     [{protocol, tls} | NewConfig].
 
-init_tls_version_default(Config) ->
-    %% Remove non default options that may be left from other test groups 
+clean_tls_version(Config) ->
     proplists:delete(protocol_opts, proplists:delete(protocol, Config)).
     
 sufficient_crypto_support(Version)
@@ -1252,9 +1302,13 @@ check_sane_openssl_version(Version) ->
 		    true;
 		{_, "OpenSSL 1.0.1" ++ _} ->
 		    true;
-		{'tlsv1.2', "OpenSSL 1.0" ++ _} ->
+		{'tlsv1.2', "OpenSSL 1.0.0" ++ _} ->
+		    false;
+		{'tlsv1.1', "OpenSSL 1.0.0" ++ _} ->
 		    false;
-		{'tlsv1.1', "OpenSSL 1.0" ++ _} ->
+                {'dtlsv1.2', "OpenSSL 1.0.0" ++ _} ->
+		    false;
+		{'dtlsv1',  "OpenSSL 1.0.0" ++ _} ->
 		    false;
 		{'tlsv1.2', "OpenSSL 0" ++ _} ->
 		    false;
@@ -1506,73 +1560,79 @@ tls_version(Atom) ->
     tls_record:protocol_version(Atom).
 
 hardcode_rsa_key(1) ->
-    {'RSAPrivateKey', 'two-prime',
-                 23995666614853919027835084074500048897452890537492185072956789802729257783422306095699263934587064480357348855732149402060270996295002843755712064937715826848741191927820899197493902093529581182351132392364214171173881547273475904587683433713767834856230531387991145055273426806331200574039205571401702219159773947658558490957010003143162250693492642996408861265758000254664396313741422909188635443907373976005987612936763564996605457102336549804831742940035613780926178523017685712710473543251580072875247250504243621640157403744718833162626193206685233710319205099867303242759099560438381385658382486042995679707669,
-                 17,
-                 11292078406990079542510627799764728892919007311761028269626724613049062486316379339152594792746853873109340637991599718616598115903530750002688030558925094987642913848386305504703012749896273497577003478759630198199473669305165131570674557041773098755873191241407597673069847908861741446606684974777271632545629600685952292605647052193819136445675100211504432575554351515262198132231537860917084269870590492135731720141577986787033006338680118008484613510063003323516659048210893001173583018220214626635609151105287049126443102976056146630518124476470236027123782297108342869049542023328584384300970694412006494684657,
-                 169371138592582642967021557955633494538845517070305333860805485424261447791289944610138334410987654265476540480228705481960508520379619587635662291973699651583489223555422528867090299996446070521801757353675026048850480903160224210802452555900007597342687137394192939372218903554801584969667104937092080815197,
-                 141675062317286527042995673340952251894209529891636708844197799307963834958115010129693036021381525952081167155681637592199810112261679449166276939178032066869788822014115556349519329537177920752776047051833616197615329017439297361972726138285974555338480581117881706656603857310337984049152655480389797687577,
-                 119556097830058336212015217380447172615655659108450823901745048534772786676204666783627059584226579481512852103690850928442711896738555003036938088452023283470698275450886490965004917644550167427154181661417665446247398284583687678213495921811770068712485038160606780733330990744565824684470897602653233516609,
-                 41669135975672507953822256864985956439473391144599032012999352737636422046504414744027363535700448809435637398729893409470532385959317485048904982111185902020526124121798693043976273393287623750816484427009887116945685005129205106462566511260580751570141347387612266663707016855981760014456663376585234613993,
-                 76837684977089699359024365285678488693966186052769523357232308621548155587515525857011429902602352279058920284048929101483304120686557782043616693940283344235057989514310975192908256494992960578961614059245280827077951132083993754797053182279229469590276271658395444955906108899267024101096069475145863928441,
-                 asn1_NOVALUE};
+    #'RSAPrivateKey'{
+       version = 'two-prime',
+       modulus = 23995666614853919027835084074500048897452890537492185072956789802729257783422306095699263934587064480357348855732149402060270996295002843755712064937715826848741191927820899197493902093529581182351132392364214171173881547273475904587683433713767834856230531387991145055273426806331200574039205571401702219159773947658558490957010003143162250693492642996408861265758000254664396313741422909188635443907373976005987612936763564996605457102336549804831742940035613780926178523017685712710473543251580072875247250504243621640157403744718833162626193206685233710319205099867303242759099560438381385658382486042995679707669,
+       publicExponent = 17,
+       privateExponent = 11292078406990079542510627799764728892919007311761028269626724613049062486316379339152594792746853873109340637991599718616598115903530750002688030558925094987642913848386305504703012749896273497577003478759630198199473669305165131570674557041773098755873191241407597673069847908861741446606684974777271632545629600685952292605647052193819136445675100211504432575554351515262198132231537860917084269870590492135731720141577986787033006338680118008484613510063003323516659048210893001173583018220214626635609151105287049126443102976056146630518124476470236027123782297108342869049542023328584384300970694412006494684657,
+       prime1 = 169371138592582642967021557955633494538845517070305333860805485424261447791289944610138334410987654265476540480228705481960508520379619587635662291973699651583489223555422528867090299996446070521801757353675026048850480903160224210802452555900007597342687137394192939372218903554801584969667104937092080815197,
+       prime2 = 141675062317286527042995673340952251894209529891636708844197799307963834958115010129693036021381525952081167155681637592199810112261679449166276939178032066869788822014115556349519329537177920752776047051833616197615329017439297361972726138285974555338480581117881706656603857310337984049152655480389797687577,
+       exponent1 = 119556097830058336212015217380447172615655659108450823901745048534772786676204666783627059584226579481512852103690850928442711896738555003036938088452023283470698275450886490965004917644550167427154181661417665446247398284583687678213495921811770068712485038160606780733330990744565824684470897602653233516609,
+       exponent2 = 41669135975672507953822256864985956439473391144599032012999352737636422046504414744027363535700448809435637398729893409470532385959317485048904982111185902020526124121798693043976273393287623750816484427009887116945685005129205106462566511260580751570141347387612266663707016855981760014456663376585234613993,
+       coefficient = 76837684977089699359024365285678488693966186052769523357232308621548155587515525857011429902602352279058920284048929101483304120686557782043616693940283344235057989514310975192908256494992960578961614059245280827077951132083993754797053182279229469590276271658395444955906108899267024101096069475145863928441,
+       otherPrimeInfos = asn1_NOVALUE};
 
 hardcode_rsa_key(2) ->
-{'RSAPrivateKey', 'two-prime',
-                 21343679768589700771839799834197557895311746244621307033143551583788179817796325695589283169969489517156931770973490560582341832744966317712674900833543896521418422508485833901274928542544381247956820115082240721897193055368570146764204557110415281995205343662628196075590438954399631753508888358737971039058298703003743872818150364935790613286541190842600031570570099801682794056444451081563070538409720109449780410837763602317050353477918147758267825417201591905091231778937606362076129350476690460157227101296599527319242747999737801698427160817755293383890373574621116766934110792127739174475029121017282777887777,
-                 17,
-                 18832658619343853622211588088997845201745658451136447382185486691577805721584993260814073385267196632785528033211903435807948675951440868570007265441362261636545666919252206383477878125774454042314841278013741813438699754736973658909592256273895837054592950290554290654932740253882028017801960316533503857992358685308186680144968293076156011747178275038098868263178095174694099811498968993700538293188879611375604635940554394589807673542938082281934965292051746326331046224291377703201248790910007232374006151098976879987912446997911775904329728563222485791845480864283470332826504617837402078265424772379987120023773,
-                 146807662748886761089048448970170315054939768171908279335181627815919052012991509112344782731265837727551849787333310044397991034789843793140419387740928103541736452627413492093463231242466386868459637115999163097726153692593711599245170083315894262154838974616739452594203727376460632750934355508361223110419,
-                 145385325050081892763917667176962991350872697916072592966410309213561884732628046256782356731057378829876640317801978404203665761131810712267778698468684631707642938779964806354584156202882543264893826268426566901882487709510744074274965029453915224310656287149777603803201831202222853023280023478269485417083,
-                 51814469205489445090252393754177758254684624060673510353593515699736136004585238510239335081623236845018299924941168250963996835808180162284853901555621683602965806809675350150634081614988136541809283687999704622726877773856604093851236499993845033701707873394143336209718962603456693912094478414715725803677,
-                 51312467664734785681382706062457526359131540440966797517556579722433606376221663384746714140373192528191755406283051201483646739222992016094510128871300458249756331334105225772206172777487956446433115153562317730076172132768497908567634716277852432109643395464627389577600646306666889302334125933506877206029,
-                 30504662229874176232343608562807118278893368758027179776313787938167236952567905398252901545019583024374163153775359371298239336609182249464886717948407152570850677549297935773605431024166978281486607154204888016179709037883348099374995148481968169438302456074511782717758301581202874062062542434218011141540,
- asn1_NOVALUE};
-
+    #'RSAPrivateKey'{
+       version = 'two-prime',
+       modulus = 21343679768589700771839799834197557895311746244621307033143551583788179817796325695589283169969489517156931770973490560582341832744966317712674900833543896521418422508485833901274928542544381247956820115082240721897193055368570146764204557110415281995205343662628196075590438954399631753508888358737971039058298703003743872818150364935790613286541190842600031570570099801682794056444451081563070538409720109449780410837763602317050353477918147758267825417201591905091231778937606362076129350476690460157227101296599527319242747999737801698427160817755293383890373574621116766934110792127739174475029121017282777887777,
+       publicExponent = 17,
+       privateExponent = 18832658619343853622211588088997845201745658451136447382185486691577805721584993260814073385267196632785528033211903435807948675951440868570007265441362261636545666919252206383477878125774454042314841278013741813438699754736973658909592256273895837054592950290554290654932740253882028017801960316533503857992358685308186680144968293076156011747178275038098868263178095174694099811498968993700538293188879611375604635940554394589807673542938082281934965292051746326331046224291377703201248790910007232374006151098976879987912446997911775904329728563222485791845480864283470332826504617837402078265424772379987120023773,
+       prime1 = 146807662748886761089048448970170315054939768171908279335181627815919052012991509112344782731265837727551849787333310044397991034789843793140419387740928103541736452627413492093463231242466386868459637115999163097726153692593711599245170083315894262154838974616739452594203727376460632750934355508361223110419,
+       prime2 = 145385325050081892763917667176962991350872697916072592966410309213561884732628046256782356731057378829876640317801978404203665761131810712267778698468684631707642938779964806354584156202882543264893826268426566901882487709510744074274965029453915224310656287149777603803201831202222853023280023478269485417083,
+       exponent1 = 51814469205489445090252393754177758254684624060673510353593515699736136004585238510239335081623236845018299924941168250963996835808180162284853901555621683602965806809675350150634081614988136541809283687999704622726877773856604093851236499993845033701707873394143336209718962603456693912094478414715725803677,
+       exponent2 = 51312467664734785681382706062457526359131540440966797517556579722433606376221663384746714140373192528191755406283051201483646739222992016094510128871300458249756331334105225772206172777487956446433115153562317730076172132768497908567634716277852432109643395464627389577600646306666889302334125933506877206029,
+       coefficient = 30504662229874176232343608562807118278893368758027179776313787938167236952567905398252901545019583024374163153775359371298239336609182249464886717948407152570850677549297935773605431024166978281486607154204888016179709037883348099374995148481968169438302456074511782717758301581202874062062542434218011141540,
+       otherPrimeInfos = asn1_NOVALUE};
 hardcode_rsa_key(3) -> 
-{'RSAPrivateKey', 'two-prime',
-                 25089040456112869869472694987833070928503703615633809313972554887193090845137746668197820419383804666271752525807484521370419854590682661809972833718476098189250708650325307850184923546875260207894844301992963978994451844985784504212035958130279304082438876764367292331581532569155681984449177635856426023931875082020262146075451989132180409962870105455517050416234175675478291534563995772675388370042873175344937421148321291640477650173765084699931690748536036544188863178325887393475703801759010864779559318631816411493486934507417755306337476945299570726975433250753415110141783026008347194577506976486290259135429,
-                 17,
-                 8854955455098659953931539407470495621824836570223697404931489960185796768872145882893348383311931058684147950284994536954265831032005645344696294253579799360912014817761873358888796545955974191021709753644575521998041827642041589721895044045980930852625485916835514940558187965584358347452650930302268008446431977397918214293502821599497633970075862760001650736520566952260001423171553461362588848929781360590057040212831994258783694027013289053834376791974167294527043946669963760259975273650548116897900664646809242902841107022557239712438496384819445301703021164043324282687280801738470244471443835900160721870265,
-                 171641816401041100605063917111691927706183918906535463031548413586331728772311589438043965564336865070070922328258143588739626712299625805650832695450270566547004154065267940032684307994238248203186986569945677705100224518137694769557564475390859269797990555863306972197736879644001860925483629009305104925823,
-                 146170909759497809922264016492088453282310383272504533061020897155289106805616042710009332510822455269704884883705830985184223718261139908416790475825625309815234508695722132706422885088219618698987115562577878897003573425367881351537506046253616435685549396767356003663417208105346307649599145759863108910523,
-                 60579464612132153154728441333538327425711971378777222246428851853999433684345266860486105493295364142377972586444050678378691780811632637288529186629507258781295583787741625893888579292084087601124818789392592131211843947578009918667375697196773859928702549128225990187436545756706539150170692591519448797349,
-                 137572620950115585809189662580789132500998007785886619351549079675566218169991569609420548245479957900898715184664311515467504676010484619686391036071176762179044243478326713135456833024206699951987873470661533079532774988581535389682358631768109586527575902839864474036157372334443583670210960715165278974609,
-                 15068630434698373319269196003209754243798959461311186548759287649485250508074064775263867418602372588394608558985183294561315208336731894947137343239541687540387209051236354318837334154993136528453613256169847839789803932725339395739618592522865156272771578671216082079933457043120923342632744996962853951612,
- asn1_NOVALUE};
+    #'RSAPrivateKey'{ 
+       version = 'two-prime',
+       modulus = 25089040456112869869472694987833070928503703615633809313972554887193090845137746668197820419383804666271752525807484521370419854590682661809972833718476098189250708650325307850184923546875260207894844301992963978994451844985784504212035958130279304082438876764367292331581532569155681984449177635856426023931875082020262146075451989132180409962870105455517050416234175675478291534563995772675388370042873175344937421148321291640477650173765084699931690748536036544188863178325887393475703801759010864779559318631816411493486934507417755306337476945299570726975433250753415110141783026008347194577506976486290259135429,
+       publicExponent = 17,
+       privateExponent = 8854955455098659953931539407470495621824836570223697404931489960185796768872145882893348383311931058684147950284994536954265831032005645344696294253579799360912014817761873358888796545955974191021709753644575521998041827642041589721895044045980930852625485916835514940558187965584358347452650930302268008446431977397918214293502821599497633970075862760001650736520566952260001423171553461362588848929781360590057040212831994258783694027013289053834376791974167294527043946669963760259975273650548116897900664646809242902841107022557239712438496384819445301703021164043324282687280801738470244471443835900160721870265,
+       prime1 = 171641816401041100605063917111691927706183918906535463031548413586331728772311589438043965564336865070070922328258143588739626712299625805650832695450270566547004154065267940032684307994238248203186986569945677705100224518137694769557564475390859269797990555863306972197736879644001860925483629009305104925823,
+       prime2 =146170909759497809922264016492088453282310383272504533061020897155289106805616042710009332510822455269704884883705830985184223718261139908416790475825625309815234508695722132706422885088219618698987115562577878897003573425367881351537506046253616435685549396767356003663417208105346307649599145759863108910523,
+       exponent1 = 60579464612132153154728441333538327425711971378777222246428851853999433684345266860486105493295364142377972586444050678378691780811632637288529186629507258781295583787741625893888579292084087601124818789392592131211843947578009918667375697196773859928702549128225990187436545756706539150170692591519448797349,
+       exponent2 = 137572620950115585809189662580789132500998007785886619351549079675566218169991569609420548245479957900898715184664311515467504676010484619686391036071176762179044243478326713135456833024206699951987873470661533079532774988581535389682358631768109586527575902839864474036157372334443583670210960715165278974609,
+       coefficient = 15068630434698373319269196003209754243798959461311186548759287649485250508074064775263867418602372588394608558985183294561315208336731894947137343239541687540387209051236354318837334154993136528453613256169847839789803932725339395739618592522865156272771578671216082079933457043120923342632744996962853951612,
+       otherPrimeInfos = asn1_NOVALUE};
 hardcode_rsa_key(4) -> 
-{'RSAPrivateKey', 'two-prime',
-                 28617237755030755643854803617273584643843067580642149032833640135949799721163782522787597288521902619948688786051081993247908700824196122780349730169173433743054172191054872553484065655968335396052034378669869864779940355219732200954630251223541048434478476115391643898092650304645086338265930608997389611376417609043761464100338332976874588396803891301015812818307951159858145399281035705713082131199940309445719678087542976246147777388465712394062188801177717719764254900022006288880246925156931391594131839991579403409541227225173269459173129377291869028712271737734702830877034334838181789916127814298794576266389,
-                 17,
-                 26933870828264240605980991639786903194205240075898493207372837775011576208154148256741268036255908348187001210401018346586267012540419880263858569570986761169933338532757527109161473558558433313931326474042230460969355628442100895016122589386862163232450330461545076609969553227901257730132640573174013751883368376011370428995523268034111482031427024082719896108094847702954695363285832195666458915142143884210891427766607838346722974883433132513540317964796373298134261669479023445911856492129270184781873446960437310543998533283339488055776892320162032014809906169940882070478200435536171854883284366514852906334641,
-                 177342190816702392178883147766999616783253285436834252111702533617098994535049411784501174309695427674025956656849179054202187436663487378682303508229883753383891163725167367039879190685255046547908384208614573353917213168937832054054779266431207529839577747601879940934691505396807977946728204814969824442867,
-                 161367340863680900415977542864139121629424927689088951345472941851682581254789586032968359551717004797621579428672968948552429138154521719743297455351687337112710712475376510559020211584326773715482918387500187602625572442687231345855402020688502483137168684570635690059254866684191216155909970061793538842967,
-                 62591361464718491357252875682470452982324688977706206627659717747211409835899792394529826226951327414362102349476180842659595565881230839534930649963488383547255704844176717778780890830090016428673547367746320007264898765507470136725216211681602657590439205035957626212244060728285168687080542875871702744541,
-                 28476589564178982426348978152495139111074987239250991413906989738532220221433456358759122273832412611344984605059935696803369847909621479954699550944415412431654831613301737157474154985469430655673456186029444871051571607533040825739188591886206320553618003159523945304574388238386685203984112363845918619347,
-                 34340318160575773065401929915821192439103777558577109939078671096408836197675640654693301707202885840826672396546056002756167635035389371579540325327619480512374920136684787633921441576901246290213545161954865184290700344352088099063404416346968182170720521708773285279884132629954461545103181082503707725012,
- asn1_NOVALUE};
+    #'RSAPrivateKey'{
+       version ='two-prime',
+       modulus = 28617237755030755643854803617273584643843067580642149032833640135949799721163782522787597288521902619948688786051081993247908700824196122780349730169173433743054172191054872553484065655968335396052034378669869864779940355219732200954630251223541048434478476115391643898092650304645086338265930608997389611376417609043761464100338332976874588396803891301015812818307951159858145399281035705713082131199940309445719678087542976246147777388465712394062188801177717719764254900022006288880246925156931391594131839991579403409541227225173269459173129377291869028712271737734702830877034334838181789916127814298794576266389,
+       publicExponent = 17,
+       privateExponent = 26933870828264240605980991639786903194205240075898493207372837775011576208154148256741268036255908348187001210401018346586267012540419880263858569570986761169933338532757527109161473558558433313931326474042230460969355628442100895016122589386862163232450330461545076609969553227901257730132640573174013751883368376011370428995523268034111482031427024082719896108094847702954695363285832195666458915142143884210891427766607838346722974883433132513540317964796373298134261669479023445911856492129270184781873446960437310543998533283339488055776892320162032014809906169940882070478200435536171854883284366514852906334641,
+       prime1 = 177342190816702392178883147766999616783253285436834252111702533617098994535049411784501174309695427674025956656849179054202187436663487378682303508229883753383891163725167367039879190685255046547908384208614573353917213168937832054054779266431207529839577747601879940934691505396807977946728204814969824442867,
+       prime2 = 161367340863680900415977542864139121629424927689088951345472941851682581254789586032968359551717004797621579428672968948552429138154521719743297455351687337112710712475376510559020211584326773715482918387500187602625572442687231345855402020688502483137168684570635690059254866684191216155909970061793538842967,
+       exponent1 = 62591361464718491357252875682470452982324688977706206627659717747211409835899792394529826226951327414362102349476180842659595565881230839534930649963488383547255704844176717778780890830090016428673547367746320007264898765507470136725216211681602657590439205035957626212244060728285168687080542875871702744541,
+       exponent2 = 28476589564178982426348978152495139111074987239250991413906989738532220221433456358759122273832412611344984605059935696803369847909621479954699550944415412431654831613301737157474154985469430655673456186029444871051571607533040825739188591886206320553618003159523945304574388238386685203984112363845918619347,
+       coefficient = 34340318160575773065401929915821192439103777558577109939078671096408836197675640654693301707202885840826672396546056002756167635035389371579540325327619480512374920136684787633921441576901246290213545161954865184290700344352088099063404416346968182170720521708773285279884132629954461545103181082503707725012,
+       otherPrimeInfos = asn1_NOVALUE};
+
 hardcode_rsa_key(5) -> 
-{'RSAPrivateKey', 'two-prime',
-                 26363170152814518327068346871197765236382539835597898797762992537312221863402655353436079974302838986536256364057947538018476963115004626096654613827403121905035011992899481598437933532388248462251770039307078647864188314916665766359828262009578648593031111569685489178543405615478739906285223620987558499488359880003693226535420421293716164794046859453204135383236667988765227190694994861629971618548127529849059769249520775574008363789050621665120207265361610436965088511042779948238320901918522125988916609088415989475825860046571847719492980547438560049874493788767083330042728150253120940100665370844282489982633,
-                 17,
-                 10855423004100095781734025182257903332628104638187370093196526338893267826106975733767797636477639582691399679317978398007608161282648963686857782164224814902073240232370374775827384395689278778574258251479385325591136364965685903795223402003944149420659869469870495544106108194608892902588033255700759382142132115013969680562678811046675523365751498355532768935784747314021422035957153013494814430893022253205880275287307995039363642554998244274484818208792520243113824379110193356010059999642946040953102866271737127640405568982049887176990990501963784502429481034227543991366980671390566584211881030995602076468001,
-                 163564135568104310461344551909369650951960301778977149705601170951529791054750122905880591964737953456660497440730575925978769763154927541340839715938951226089095007207042122512586007411328664679011914120351043948122025612160733403945093961374276707993674792189646478659304624413958625254578122842556295400709,
-                 161179405627326572739107057023381254841260287988433675196680483761672455172873134522398837271764104320975746111042211695289319249471386600030523328069395763313848583139553961129874895374324504709512019736703349829576024049432816885712623938437949550266365056310544300920756181033500610331519029869549723159637,
-                 115457036871603042678596154288966812436677860079277988027483179495197499568058910286503947269226790675289762899339230065396778656344654735064122152427494983121714122734382674714766593466820233891067233496718383963380253373289929461608301619793607087995535147427985749641862087821617853120878674947686796753441,
-                 142217122612346975946270932667689342506994371754500301644129838613240401623123353990351915239791856753802128921507833848784693455415929352968108818884760967629866396887841730408713142977345151214275311532385308673155315337734838428569962298621720191411498579097539089047726042088382891468987379296661520434973,
-                 40624877259097915043489529504071755460170951428490878553842519165800720914888257733191322215286203357356050737713125202129282154441426952501134581314792133018830748896123382106683994268028624341502298766844710276939303555637478596035491641473828661569958212421472263269629366559343208764012473880251174832392,
- asn1_NOVALUE};
+    #'RSAPrivateKey'{ 
+       version= 'two-prime',
+       modulus = 26363170152814518327068346871197765236382539835597898797762992537312221863402655353436079974302838986536256364057947538018476963115004626096654613827403121905035011992899481598437933532388248462251770039307078647864188314916665766359828262009578648593031111569685489178543405615478739906285223620987558499488359880003693226535420421293716164794046859453204135383236667988765227190694994861629971618548127529849059769249520775574008363789050621665120207265361610436965088511042779948238320901918522125988916609088415989475825860046571847719492980547438560049874493788767083330042728150253120940100665370844282489982633,
+       publicExponent = 17,
+       privateExponent = 10855423004100095781734025182257903332628104638187370093196526338893267826106975733767797636477639582691399679317978398007608161282648963686857782164224814902073240232370374775827384395689278778574258251479385325591136364965685903795223402003944149420659869469870495544106108194608892902588033255700759382142132115013969680562678811046675523365751498355532768935784747314021422035957153013494814430893022253205880275287307995039363642554998244274484818208792520243113824379110193356010059999642946040953102866271737127640405568982049887176990990501963784502429481034227543991366980671390566584211881030995602076468001,
+       prime1 =163564135568104310461344551909369650951960301778977149705601170951529791054750122905880591964737953456660497440730575925978769763154927541340839715938951226089095007207042122512586007411328664679011914120351043948122025612160733403945093961374276707993674792189646478659304624413958625254578122842556295400709,
+       prime2 = 161179405627326572739107057023381254841260287988433675196680483761672455172873134522398837271764104320975746111042211695289319249471386600030523328069395763313848583139553961129874895374324504709512019736703349829576024049432816885712623938437949550266365056310544300920756181033500610331519029869549723159637,
+       exponent1 = 115457036871603042678596154288966812436677860079277988027483179495197499568058910286503947269226790675289762899339230065396778656344654735064122152427494983121714122734382674714766593466820233891067233496718383963380253373289929461608301619793607087995535147427985749641862087821617853120878674947686796753441,
+       exponent2 = 142217122612346975946270932667689342506994371754500301644129838613240401623123353990351915239791856753802128921507833848784693455415929352968108818884760967629866396887841730408713142977345151214275311532385308673155315337734838428569962298621720191411498579097539089047726042088382891468987379296661520434973,
+       coefficient = 40624877259097915043489529504071755460170951428490878553842519165800720914888257733191322215286203357356050737713125202129282154441426952501134581314792133018830748896123382106683994268028624341502298766844710276939303555637478596035491641473828661569958212421472263269629366559343208764012473880251174832392,
+       otherPrimeInfos = asn1_NOVALUE};
 hardcode_rsa_key(6) -> 
-{'RSAPrivateKey', 'two-prime',
-                 22748888494866396715768692484866595111939200209856056370972713870125588774286266397044592487895293134537316190976192161177144143633669641697309689280475257429554879273045671863645233402796222694405634510241820106743648116753479926387434021380537483429927516962909367257212902212159798399531316965145618774905828756510318897899298783143203190245236381440043169622358239226123652592179006905016804587837199618842875361941208299410035232803124113612082221121192550063791073372276763648926636149384299189072950588522522800393261949880796214514243704858378436010975184294077063518776479282353562934591448646412389762167039,
-                 17,
-                 6690849557313646092873144848490175032923294179369428344403739373566349639495960705013115437616262686628622409110644753287395336362844012263914614494257428655751435080307550548130951000822418439531068973600535325512837681398082331290421770994275730420566916753796872722709677121223470117509210872101652580854566448661533030419787125312956120661097410038933324613372774190658239039998357548275441758790939430824924502690997433186652165055694361752689819209062683281242276039100201318203707142383491769671330743466041394101421674581185260900666085723130684175548215193875544802254923825103844262661010117443222587769713,
-                 164748737139489923768181260808494855987398781964531448608652166632780898215212977127034263859971474195908846263894581556691971503119888726148555271179103885786024920582830105413607436718060544856016793981261118694063993837665813285582095833772675610567592660039821387740255651489996976698808018635344299728063,
-                 138082323967104548254375818343885141517788525705334488282154811252858957969378263753268344088034079842223206527922445018725900110643394926788280539200323021781309918753249061620424428562366627334409266756720941754364262467100514166396917565961434203543659974860389803369482625510495464845206228470088664021953,
-                 19382204369351755737433089506881747763223386113474288071606137250915399790025056132592266336467232258342217207517009594904937823896457497193947678962247515974826461245038835931012639613889475865413740468383661022831058098548919210068481862796785365949128548239978986792971253116470232552800943368864035262125,
-                 48734937870742781736838524121371226418043009072470995864289933383361985165662916618800592031070851709019955245149098241903258862580021738866451955011878713569874088971734962924855680669070574353320917678842685325069739694270769705787147376221682660074232932303666989424523279591939575827719845342384234360689,
-                 81173034184183681160439870161505779100040258708276674532866007896310418779840630960490793104541748007902477778658270784073595697910785917474138815202903114440800310078464142273778315781957021015333260021813037604142367434117205299831740956310682461174553260184078272196958146289378701001596552915990080834227,
-                 asn1_NOVALUE}.
+    #'RSAPrivateKey'{ 
+       version = 'two-prime',
+       modulus = 22748888494866396715768692484866595111939200209856056370972713870125588774286266397044592487895293134537316190976192161177144143633669641697309689280475257429554879273045671863645233402796222694405634510241820106743648116753479926387434021380537483429927516962909367257212902212159798399531316965145618774905828756510318897899298783143203190245236381440043169622358239226123652592179006905016804587837199618842875361941208299410035232803124113612082221121192550063791073372276763648926636149384299189072950588522522800393261949880796214514243704858378436010975184294077063518776479282353562934591448646412389762167039,
+       publicExponent = 17,
+       privateExponent = 6690849557313646092873144848490175032923294179369428344403739373566349639495960705013115437616262686628622409110644753287395336362844012263914614494257428655751435080307550548130951000822418439531068973600535325512837681398082331290421770994275730420566916753796872722709677121223470117509210872101652580854566448661533030419787125312956120661097410038933324613372774190658239039998357548275441758790939430824924502690997433186652165055694361752689819209062683281242276039100201318203707142383491769671330743466041394101421674581185260900666085723130684175548215193875544802254923825103844262661010117443222587769713,
+       prime1 = 164748737139489923768181260808494855987398781964531448608652166632780898215212977127034263859971474195908846263894581556691971503119888726148555271179103885786024920582830105413607436718060544856016793981261118694063993837665813285582095833772675610567592660039821387740255651489996976698808018635344299728063,
+       prime2 = 138082323967104548254375818343885141517788525705334488282154811252858957969378263753268344088034079842223206527922445018725900110643394926788280539200323021781309918753249061620424428562366627334409266756720941754364262467100514166396917565961434203543659974860389803369482625510495464845206228470088664021953,
+       exponent1 = 19382204369351755737433089506881747763223386113474288071606137250915399790025056132592266336467232258342217207517009594904937823896457497193947678962247515974826461245038835931012639613889475865413740468383661022831058098548919210068481862796785365949128548239978986792971253116470232552800943368864035262125,
+       exponent2 = 48734937870742781736838524121371226418043009072470995864289933383361985165662916618800592031070851709019955245149098241903258862580021738866451955011878713569874088971734962924855680669070574353320917678842685325069739694270769705787147376221682660074232932303666989424523279591939575827719845342384234360689,
+       coefficient = 81173034184183681160439870161505779100040258708276674532866007896310418779840630960490793104541748007902477778658270784073595697910785917474138815202903114440800310078464142273778315781957021015333260021813037604142367434117205299831740956310682461174553260184078272196958146289378701001596552915990080834227,
+       otherPrimeInfos = asn1_NOVALUE}.
 
 hardcode_dsa_key(1) -> 
     {'DSAPrivateKey',0,
@@ -1582,19 +1642,21 @@ hardcode_dsa_key(1) ->
      48598545580251057979126570873881530215432219542526130654707948736559463436274835406081281466091739849794036308281564299754438126857606949027748889019480936572605967021944405048011118039171039273602705998112739400664375208228641666852589396502386172780433510070337359132965412405544709871654840859752776060358,
      1457508827177594730669011716588605181448418352823};
 hardcode_dsa_key(2) -> 
-    {'DSAPrivateKey',0,
-     145447354557382582722944332987784622105075065624518040072393858097520305927329240484963764783346271194321683798321743658303478090647837211867389721684646254999291098347011037298359107547264573476540026676832159205689428125157386525591130716464335426605521884822982379206842523670736739023467072341958074788151,
-     742801637799670234315651916144768554943688916729,
-     79727684678125120155622004643594683941478642656111969487719464672433839064387954070113655822700268007902716505761008423792735229036965034283173483862273639257533568978482104785033927768441235063983341565088899599358397638308472931049309161811156189887217888328371767967629005149630676763492409067382020352505,
-     35853727034965131665219275925554159789667905059030049940938124723126925435403746979702929280654735557166864135215989313820464108440192507913554896358611966877432546584986661291483639036057475682547385322659469460385785257933737832719745145778223672383438466035853830832837226950912832515496378486927322864228,
-     801315110178350279541885862867982846569980443911};
+    #'DSAPrivateKey'{
+       version = 0,
+       p = 145447354557382582722944332987784622105075065624518040072393858097520305927329240484963764783346271194321683798321743658303478090647837211867389721684646254999291098347011037298359107547264573476540026676832159205689428125157386525591130716464335426605521884822982379206842523670736739023467072341958074788151,
+       q = 742801637799670234315651916144768554943688916729,
+       g = 79727684678125120155622004643594683941478642656111969487719464672433839064387954070113655822700268007902716505761008423792735229036965034283173483862273639257533568978482104785033927768441235063983341565088899599358397638308472931049309161811156189887217888328371767967629005149630676763492409067382020352505,
+       y = 35853727034965131665219275925554159789667905059030049940938124723126925435403746979702929280654735557166864135215989313820464108440192507913554896358611966877432546584986661291483639036057475682547385322659469460385785257933737832719745145778223672383438466035853830832837226950912832515496378486927322864228,
+       x = 801315110178350279541885862867982846569980443911};
 hardcode_dsa_key(3) -> 
-    {'DSAPrivateKey',0,
-     99438313664986922963487511141216248076486724382260996073922424025828494981416579966171753999204426907349400798052572573634137057487829150578821328280864500098312146772602202702021153757550650696224643730869835650674962433068943942837519621267815961566259265204876799778977478160416743037274938277357237615491,
-     1454908511695148818053325447108751926908854531909,
-     20302424198893709525243209250470907105157816851043773596964076323184805650258390738340248469444700378962907756890306095615785481696522324901068493502141775433048117442554163252381401915027666416630898618301033737438756165023568220631119672502120011809327566543827706483229480417066316015458225612363927682579,
-     48598545580251057979126570873881530215432219542526130654707948736559463436274835406081281466091739849794036308281564299754438126857606949027748889019480936572605967021944405048011118039171039273602705998112739400664375208228641666852589396502386172780433510070337359132965412405544709871654840859752776060358,
-     1457508827177594730669011716588605181448418352823}.
+    #'DSAPrivateKey'{
+       version = 0,
+       p =  99438313664986922963487511141216248076486724382260996073922424025828494981416579966171753999204426907349400798052572573634137057487829150578821328280864500098312146772602202702021153757550650696224643730869835650674962433068943942837519621267815961566259265204876799778977478160416743037274938277357237615491,
+       q =  1454908511695148818053325447108751926908854531909,
+       g =  20302424198893709525243209250470907105157816851043773596964076323184805650258390738340248469444700378962907756890306095615785481696522324901068493502141775433048117442554163252381401915027666416630898618301033737438756165023568220631119672502120011809327566543827706483229480417066316015458225612363927682579,
+       y =  48598545580251057979126570873881530215432219542526130654707948736559463436274835406081281466091739849794036308281564299754438126857606949027748889019480936572605967021944405048011118039171039273602705998112739400664375208228641666852589396502386172780433510070337359132965412405544709871654840859752776060358,
+       x = 1457508827177594730669011716588605181448418352823}.
 
 dtls_hello() ->
     [1,
diff --git a/lib/ssl/test/ssl_to_openssl_SUITE.erl b/lib/ssl/test/ssl_to_openssl_SUITE.erl
index 43a4a0b6d1..9118e4b7e3 100644
--- a/lib/ssl/test/ssl_to_openssl_SUITE.erl
+++ b/lib/ssl/test/ssl_to_openssl_SUITE.erl
@@ -90,9 +90,9 @@ dtls_all_versions_tests() ->
      erlang_client_openssl_server_dsa_cert,
      erlang_server_openssl_client_dsa_cert,
      erlang_server_openssl_client_reuse_session,
-     %%erlang_client_openssl_server_renegotiate,
-     %%erlang_client_openssl_server_nowrap_seqnum,
-     %%erlang_server_openssl_client_nowrap_seqnum,
+     erlang_client_openssl_server_renegotiate,
+     erlang_client_openssl_server_nowrap_seqnum,
+     erlang_server_openssl_client_nowrap_seqnum,
      erlang_client_openssl_server_no_server_ca_cert,
      erlang_client_openssl_server_client_cert,
      erlang_server_openssl_client_client_cert,
@@ -156,7 +156,8 @@ end_per_suite(_Config) ->
     ssl:stop(),
     application:stop(crypto).
 
-init_per_group(basic, Config) ->
+init_per_group(basic, Config0) ->
+    Config = ssl_test_lib:clean_tls_version(Config0),
     case ssl_test_lib:supports_ssl_tls_version(sslv2) of
 	true ->
 	    [{v2_hello_compatible, true} | Config];
@@ -182,8 +183,13 @@ init_per_group(GroupName, Config) ->
 	    Config
     end.
 
-end_per_group(_GroupName, Config) ->
-    Config.
+end_per_group(GroupName, Config) ->
+  case ssl_test_lib:is_tls_version(GroupName) of
+      true ->
+          ssl_test_lib:clean_tls_version(Config);
+      false ->
+          Config
+  end.
 
 init_per_testcase(expired_session, Config) ->
     ct:timetrap(?EXPIRE * 1000 * 5),
diff --git a/lib/ssl/test/x509_test.erl b/lib/ssl/test/x509_test.erl
index 4da1537ef6..fea01efdaf 100644
--- a/lib/ssl/test/x509_test.erl
+++ b/lib/ssl/test/x509_test.erl
@@ -24,23 +24,10 @@
 
  -include_lib("public_key/include/public_key.hrl").
 
- -export([gen_test_certs/1, gen_pem_config_files/3]).
+-export([extensions/1, gen_pem_config_files/3]).
 
- gen_test_certs(Opts) ->
-     SRootKey = gen_key(proplists:get_value(server_key_gen, Opts)),
-     CRootKey = gen_key(proplists:get_value(client_key_gen, Opts)),
-     ServerRoot = root_cert("server", SRootKey, Opts),
-     ClientRoot = root_cert("client", CRootKey, Opts),
-     [{ServerCert, ServerKey} | ServerCAsKeys] = config(server, ServerRoot, SRootKey, Opts),
-     [{ClientCert, ClientKey} | ClientCAsKeys] = config(client, ClientRoot, CRootKey, Opts),
-     ServerCAs = ca_config(ClientRoot, ServerCAsKeys),
-     ClientCAs = ca_config(ServerRoot, ClientCAsKeys),
-     [{server_config, [{cert, ServerCert}, {key, ServerKey}, {cacerts, ServerCAs}]}, 
-      {client_config, [{cert, ClientCert}, {key, ClientKey}, {cacerts, ClientCAs}]}].
-
-gen_pem_config_files(GenCertData, ClientBase, ServerBase) ->
-    ServerConf = proplists:get_value(server_config, GenCertData),
-    ClientConf = proplists:get_value(client_config, GenCertData),
+gen_pem_config_files(#{server_config := ServerConf,
+                       client_config := ClientConf}, ClientBase, ServerBase) ->
     
     ServerCaCertFile = ServerBase ++ "_server_cacerts.pem",
     ServerCertFile = ServerBase ++ "_server_cert.pem",
@@ -62,147 +49,30 @@ gen_pem_config_files(GenCertData, ClientBase, ServerBase) ->
                       {keyfile, ServerKeyFile}, {cacertfile, ServerCaCertFile}]}, 
      {client_config, [{certfile, ClientCertFile}, 
                       {keyfile, ClientKeyFile}, {cacertfile, ClientCaCertFile}]}].
+extensions(Exts) ->
+    [extension(Ext) || Ext <- Exts].
 
 
- do_gen_pem_config_files(Config, CertFile, KeyFile, CAFile) ->
-     CAs = proplists:get_value(cacerts, Config),
-     Cert = proplists:get_value(cert, Config),
-     Key = proplists:get_value(key, Config),
-     der_to_pem(CertFile, [cert_entry(Cert)]),
-     der_to_pem(KeyFile, [key_entry(Key)]),
-     der_to_pem(CAFile, ca_entries(CAs)).
-
- cert_entry(Cert) ->
-     {'Certificate', Cert, not_encrypted}.
-
- key_entry(Key = #'RSAPrivateKey'{}) ->
-     Der = public_key:der_encode('RSAPrivateKey', Key),
-     {'RSAPrivateKey', Der, not_encrypted};
- key_entry(Key = #'DSAPrivateKey'{}) ->
-     Der =  public_key:der_encode('DSAPrivateKey', Key),
-     {'DSAPrivateKey', Der, not_encrypted};
- key_entry(Key = #'ECPrivateKey'{}) ->
-     Der =  public_key:der_encode('ECPrivateKey', Key),
-     {'ECPrivateKey', Der, not_encrypted}.
-
- ca_entries(CAs) ->
-     [{'Certificate', CACert, not_encrypted} || CACert <- CAs].
-
- gen_key(KeyGen) ->
-     case is_key(KeyGen) of
-         true ->
-             KeyGen;
-         false ->
-             public_key:generate_key(KeyGen)
-     end.
-
-root_cert(Role, PrivKey, Opts) ->
-     TBS = cert_template(),
-     Issuer = issuer("root", Role, " ROOT CA"),
-     OTPTBS = TBS#'OTPTBSCertificate'{
-                signature = sign_algorithm(PrivKey, Opts),
-                issuer = Issuer,
-                validity = validity(Opts),  
-                subject = Issuer,
-                subjectPublicKeyInfo = public_key(PrivKey),
-                extensions = extensions(Role, ca, Opts)
-               },
-     public_key:pkix_sign(OTPTBS, PrivKey).
-
-config(Role, Root, Key, Opts) ->
-    KeyGenOpt = list_to_atom(atom_to_list(Role) ++ "_key_gen_chain"),
-    KeyGens = proplists:get_value(KeyGenOpt, Opts, default_key_gen()),
-    Keys = lists:map(fun gen_key/1, KeyGens),
-    cert_chain(Role, Root, Key, Opts, Keys).
+do_gen_pem_config_files(Config, CertFile, KeyFile, CAFile) ->
+    CAs = proplists:get_value(cacerts, Config),
+    Cert = proplists:get_value(cert, Config),
+    Key = proplists:get_value(key, Config),
+    der_to_pem(CertFile, [cert_entry(Cert)]),
+    der_to_pem(KeyFile, [key_entry(Key)]),
+    der_to_pem(CAFile, ca_entries(CAs)).
 
-cert_template() ->
-    #'OTPTBSCertificate'{
-       version = v3,              
-       serialNumber = trunc(rand:uniform()*100000000)*10000 + 1,
-       issuerUniqueID = asn1_NOVALUE,       
-       subjectUniqueID = asn1_NOVALUE
-      }.
+cert_entry(Cert) ->
+    {'Certificate', Cert, not_encrypted}.
 
-issuer(Contact, Role, Name) ->
-  subject(Contact, Role ++ Name).
+key_entry({'RSAPrivateKey', DERKey}) ->
+    {'RSAPrivateKey', DERKey, not_encrypted};
+key_entry({'DSAPrivateKey', DERKey}) ->
+    {'DSAPrivateKey', DERKey, not_encrypted};
+key_entry({'ECPrivateKey', DERKey}) ->
+    {'ECPrivateKey', DERKey, not_encrypted}.
 
-subject(Contact, Name) ->
-    Opts = [{email, Contact ++ "@erlang.org"},
-	    {name,  Name},
-	    {city, "Stockholm"},
-	    {country, "SE"},
-	    {org, "erlang"},
-	    {org_unit, "automated testing"}],
-    subject(Opts).
-
-subject(SubjectOpts) when is_list(SubjectOpts) ->
-    Encode = fun(Opt) ->
-		     {Type,Value} = subject_enc(Opt),
-		     [#'AttributeTypeAndValue'{type=Type, value=Value}]
-	     end,
-    {rdnSequence, [Encode(Opt) || Opt <- SubjectOpts]}.
-
-subject_enc({name,  Name}) ->       
-    {?'id-at-commonName', {printableString, Name}};
-subject_enc({email, Email}) ->      
-    {?'id-emailAddress', Email};
-subject_enc({city,  City}) ->       
-    {?'id-at-localityName', {printableString, City}};
-subject_enc({state, State}) ->      
-    {?'id-at-stateOrProvinceName', {printableString, State}};
-subject_enc({org, Org}) ->          
-    {?'id-at-organizationName', {printableString, Org}};
-subject_enc({org_unit, OrgUnit}) -> 
-    {?'id-at-organizationalUnitName', {printableString, OrgUnit}};
-subject_enc({country, Country}) ->  
-    {?'id-at-countryName', Country};
-subject_enc({serial, Serial}) ->    
-    {?'id-at-serialNumber', Serial};
-subject_enc({title, Title}) ->      
-    {?'id-at-title', {printableString, Title}};
-subject_enc({dnQualifer, DnQ}) ->   
-    {?'id-at-dnQualifier', DnQ};
-subject_enc(Other) -> 
-    Other.
-
-validity(Opts) ->
-    DefFrom0 = calendar:gregorian_days_to_date(calendar:date_to_gregorian_days(date())-1),
-    DefTo0   = calendar:gregorian_days_to_date(calendar:date_to_gregorian_days(date())+7),
-    {DefFrom, DefTo} = proplists:get_value(validity, Opts, {DefFrom0, DefTo0}),
-    Format = fun({Y,M,D}) -> 
-                     lists:flatten(io_lib:format("~w~2..0w~2..0w000000Z",[Y,M,D])) 
-             end,
-    #'Validity'{notBefore={generalTime, Format(DefFrom)},
-		notAfter ={generalTime, Format(DefTo)}}.
-
-extensions(Role, Type, Opts) ->
-    Exts  = proplists:get_value(extensions, Opts, []),
-    lists:flatten([extension(Ext) || Ext <- default_extensions(Role, Type, Exts)]).
-
-%% Common extension: name_constraints, policy_constraints, ext_key_usage, inhibit_any, 
-%% auth_key_id, subject_key_id, policy_mapping,
-
-default_extensions(_, ca, Exts) ->
-    Def = [{key_usage,  [keyCertSign, cRLSign]}, 
-	   {basic_constraints, default}],
-    add_default_extensions(Def, Exts);
-
-default_extensions(server, peer, Exts) ->
-    Hostname = net_adm:localhost(),
-    Def = [{key_usage, [digitalSignature, keyAgreement]},
-           {subject_alt, Hostname}],
-    add_default_extensions(Def, Exts);
-    
-default_extensions(_, peer, Exts) ->
-    Exts.
-
-add_default_extensions(Def, Exts) ->
-    Filter = fun({Key, _}, D) -> 
-                     lists:keydelete(Key, 1, D); 
-                ({Key, _, _}, D) -> 
-                     lists:keydelete(Key, 1, D)
-             end,
-    Exts ++ lists:foldl(Filter, Def, Exts).
+ca_entries(CAs) ->
+    [{'Certificate', CACert, not_encrypted} || CACert <- CAs].
 
 extension({_, undefined}) ->
     [];
@@ -222,13 +92,6 @@ extension({basic_constraints, Data}) ->
 	    #'Extension'{extnID = ?'id-ce-basicConstraints',
 			 extnValue = Data}
     end;
-extension({auth_key_id, {Oid, Issuer, SNr}}) ->
-    #'Extension'{extnID = ?'id-ce-authorityKeyIdentifier',
-                 extnValue = #'AuthorityKeyIdentifier'{
-                                keyIdentifier = Oid,	    
-                                authorityCertIssuer = Issuer,     
-                                authorityCertSerialNumber = SNr},
-                 critical = false};
 extension({key_usage, Value}) ->
     #'Extension'{extnID = ?'id-ce-keyUsage',
                  extnValue = Value,
@@ -240,113 +103,6 @@ extension({subject_alt, Hostname}) ->
 extension({Id, Data, Critical}) ->
     #'Extension'{extnID = Id, extnValue = Data, critical = Critical}.
 
-public_key(#'RSAPrivateKey'{modulus=N, publicExponent=E}) ->
-    Public = #'RSAPublicKey'{modulus=N, publicExponent=E},
-    Algo = #'PublicKeyAlgorithm'{algorithm= ?rsaEncryption, parameters='NULL'},
-    #'OTPSubjectPublicKeyInfo'{algorithm = Algo,
-			       subjectPublicKey = Public};
-public_key(#'DSAPrivateKey'{p=P, q=Q, g=G, y=Y}) ->
-    Algo = #'PublicKeyAlgorithm'{algorithm= ?'id-dsa', 
-				 parameters={params, #'Dss-Parms'{p=P, q=Q, g=G}}},
-    #'OTPSubjectPublicKeyInfo'{algorithm = Algo, subjectPublicKey = Y};
-public_key(#'ECPrivateKey'{version = _Version,
-			  privateKey = _PrivKey,
-			  parameters = Params,
-			  publicKey = PubKey}) ->
-    Algo = #'PublicKeyAlgorithm'{algorithm= ?'id-ecPublicKey', parameters=Params},
-    #'OTPSubjectPublicKeyInfo'{algorithm = Algo,
-			       subjectPublicKey = #'ECPoint'{point = PubKey}}.
-
-sign_algorithm(#'RSAPrivateKey'{}, Opts) ->
-    Type = rsa_digest_oid(proplists:get_value(digest, Opts, sha1)),
-    #'SignatureAlgorithm'{algorithm  = Type,
-                          parameters = 'NULL'};
-sign_algorithm(#'DSAPrivateKey'{p=P, q=Q, g=G}, _Opts) ->
-    #'SignatureAlgorithm'{algorithm  = ?'id-dsa-with-sha1',
-                          parameters = {params,#'Dss-Parms'{p=P, q=Q, g=G}}};
-sign_algorithm(#'ECPrivateKey'{parameters = Parms}, Opts) ->
-    Type = ecdsa_digest_oid(proplists:get_value(digest, Opts, sha1)),
-    #'SignatureAlgorithm'{algorithm  = Type,
-                          parameters = Parms}.
-
-rsa_digest_oid(sha1) ->
-    ?'sha1WithRSAEncryption';
-rsa_digest_oid(sha512) ->
-    ?'sha512WithRSAEncryption';
-rsa_digest_oid(sha384) ->
-    ?'sha384WithRSAEncryption';
-rsa_digest_oid(sha256) ->
-    ?'sha256WithRSAEncryption';
-rsa_digest_oid(md5) ->
-   ?'md5WithRSAEncryption'.
-
-ecdsa_digest_oid(sha1) ->
-    ?'ecdsa-with-SHA1';
-ecdsa_digest_oid(sha512) ->
-    ?'ecdsa-with-SHA512';
-ecdsa_digest_oid(sha384) ->
-    ?'ecdsa-with-SHA384';
-ecdsa_digest_oid(sha256) ->
-    ?'ecdsa-with-SHA256'.
-
-ca_config(Root, CAsKeys) ->
-    [Root | [CA || {CA, _}  <- CAsKeys]].
-
-cert_chain(Role, Root, RootKey, Opts, Keys) ->
-    cert_chain(Role, Root, RootKey, Opts, Keys, 0, []).
-
-cert_chain(Role, IssuerCert, IssuerKey, Opts, [Key], _, Acc) ->
-    PeerOpts = list_to_atom(atom_to_list(Role) ++ "_peer_opts"),
-    Cert = cert(Role, public_key:pkix_decode_cert(IssuerCert, otp), 
-                IssuerKey, Key, "admin", " Peer cert", Opts, PeerOpts, peer),
-    [{Cert, Key}, {IssuerCert, IssuerKey} | Acc];
-cert_chain(Role, IssuerCert, IssuerKey, Opts, [Key | Keys], N, Acc) ->
-    CAOpts = list_to_atom(atom_to_list(Role) ++ "_ca_" ++ integer_to_list(N)),
-    Cert = cert(Role, public_key:pkix_decode_cert(IssuerCert, otp), IssuerKey, Key, "webadmin", 
-                " Intermidiate CA " ++ integer_to_list(N), Opts, CAOpts, ca),
-    cert_chain(Role, Cert, Key, Opts, Keys, N+1, [{IssuerCert, IssuerKey} | Acc]).
-        
-cert(Role, #'OTPCertificate'{tbsCertificate = #'OTPTBSCertificate'{subject = Issuer,
-                                                                   serialNumber = SNr
-                                                                  }}, 
-     PrivKey, Key, Contact, Name, Opts, CertOptsName, Type) ->
-    CertOpts = proplists:get_value(CertOptsName, Opts, []),
-    TBS = cert_template(),         
-    OTPTBS = TBS#'OTPTBSCertificate'{
-               signature = sign_algorithm(PrivKey, Opts),
-               issuer =  Issuer,
-               validity = validity(CertOpts),  
-               subject = subject(Contact, atom_to_list(Role) ++ Name),
-               subjectPublicKeyInfo = public_key(Key),
-               extensions = extensions(Role, Type, 
-                                       add_default_extensions([{auth_key_id, {auth_key_oid(Role), Issuer, SNr}}],
-                                                              CertOpts))
-              },
-    public_key:pkix_sign(OTPTBS, PrivKey).
-
-is_key(#'DSAPrivateKey'{}) ->
-    true;
-is_key(#'RSAPrivateKey'{}) ->
-    true;
-is_key(#'ECPrivateKey'{}) ->
-    true;
-is_key(_) ->
-    false.
-
 der_to_pem(File, Entries) ->
     PemBin = public_key:pem_encode(Entries),
     file:write_file(File, PemBin).
-
-default_key_gen() ->
-    case tls_v1:ecc_curves(0) of
-        [] ->
-            [{rsa, 2048, 17}, {rsa, 2048, 17}];
-        [_|_] ->
-            [{namedCurve, hd(tls_v1:ecc_curves(0))},
-             {namedCurve, hd(tls_v1:ecc_curves(0))}]
-    end.
-
-auth_key_oid(server) ->
-    ?'id-kp-serverAuth';
-auth_key_oid(client) ->
-    ?'id-kp-clientAuth'.
diff --git a/lib/ssl/vsn.mk b/lib/ssl/vsn.mk
index 25b2a2bec0..bb77326751 100644
--- a/lib/ssl/vsn.mk
+++ b/lib/ssl/vsn.mk
@@ -1 +1 @@
-SSL_VSN = 8.2
+SSL_VSN = 8.2.1
diff --git a/lib/stdlib/doc/src/Makefile b/lib/stdlib/doc/src/Makefile
index 26602764a6..93eac8220d 100644
--- a/lib/stdlib/doc/src/Makefile
+++ b/lib/stdlib/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1997-2016. All Rights Reserved.
+# Copyright Ericsson AB 1997-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -103,7 +103,7 @@ XML_REF3_FILES = \
 
 XML_REF6_FILES = stdlib_app.xml
 
-XML_PART_FILES = part.xml part_notes.xml part_notes_history.xml
+XML_PART_FILES = part.xml
 XML_CHAPTER_FILES = io_protocol.xml unicode_usage.xml notes.xml notes_history.xml assert_hrl.xml
 
 BOOK_FILES = book.xml
@@ -131,9 +131,9 @@ SPECS_FILES = $(XML_REF3_FILES:%.xml=$(SPECDIR)/specs_%.xml)
 TOP_SPECS_FILE = specs.xml
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 
 SPECS_FLAGS = -I../../include -I../../../kernel/include
 
@@ -150,7 +150,7 @@ html: $(HTML_REF_MAN_FILE)
 
 man: $(MAN3_FILES) $(MAN6_FILES)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
@@ -158,7 +158,7 @@ clean clean_docs:
 	rm -f $(MAN6DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
 	rm -f $(SPECDIR)/*
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 $(SPECDIR)/specs_erl_id_trans.xml:
 	escript $(SPECS_EXTRACTOR) $(SPECS_FLAGS) \
@@ -166,7 +166,7 @@ $(SPECDIR)/specs_erl_id_trans.xml:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/stdlib/doc/src/c.xml b/lib/stdlib/doc/src/c.xml
index 7666699183..697e1715e7 100644
--- a/lib/stdlib/doc/src/c.xml
+++ b/lib/stdlib/doc/src/c.xml
@@ -94,6 +94,15 @@
     </func>
 
     <func>
+      <name name="erlangrc" arity="1"/>
+      <fsummary>Load an erlang resource file.</fsummary>
+      <desc>
+        <p>Search <c>PathList</c> and load <c>.erlang</c> resource file if
+	found.</p>
+      </desc>
+    </func>
+
+    <func>
       <name name="flush" arity="0"/>
       <fsummary>Flush any messages sent to the shell.</fsummary>
       <desc>
diff --git a/lib/stdlib/doc/src/ets.xml b/lib/stdlib/doc/src/ets.xml
index f6f3d18d6a..576959b1c8 100644
--- a/lib/stdlib/doc/src/ets.xml
+++ b/lib/stdlib/doc/src/ets.xml
@@ -325,7 +325,7 @@
         <p><c><anno>Acc0</anno></c> is returned if the table is empty.
           This function is similar to
           <seealso marker="lists#foldl/3"><c>lists:foldl/3</c></seealso>.
-          The table elements are traversed is unspecified order, except for
+          The table elements are traversed in an unspecified order, except for
           <c>ordered_set</c> tables, where they are traversed first to last.</p>
         <p>If <c><anno>Function</anno></c> inserts objects into the table,
           or another
@@ -341,7 +341,7 @@
         <p><c><anno>Acc0</anno></c> is returned if the table is empty.
           This function is similar to
           <seealso marker="lists#foldr/3"><c>lists:foldr/3</c></seealso>.
-          The table elements are traversed is unspecified order, except for
+          The table elements are traversed in an unspecified order, except for
           <c>ordered_set</c> tables, where they are traversed last to first.</p>
         <p>If <c><anno>Function</anno></c> inserts objects into the table,
           or another
@@ -408,9 +408,9 @@
           calls cannot be in the guard or body of the fun. Calls to built-in
           match specification functions is of course allowed:</p>
         <pre>
-4> <input>ets:fun2ms(fun({M,N}) when N > X, is_atomm(M) -> M end).</input>
+4> <input>ets:fun2ms(fun({M,N}) when N > X, my_fun(M) -> M end).</input>
 Error: fun containing local Erlang function calls
-('is_atomm' called in guard) cannot be translated into match_spec
+('my_fun' called in guard) cannot be translated into match_spec
 {error,transform_error}
 5> <input>ets:fun2ms(fun({M,N}) when N > X, is_atom(M) -> M end).</input>
 [{{'$1','$2'},[{'>','$2',{const,3}},{is_atom,'$1'}],['$1']}]</pre>
diff --git a/lib/stdlib/doc/src/fascicules.xml b/lib/stdlib/doc/src/fascicules.xml
deleted file mode 100644
index 0ded9007e0..0000000000
--- a/lib/stdlib/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    STDLIB User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/stdlib/doc/src/filelib.xml b/lib/stdlib/doc/src/filelib.xml
index 80c4acffdb..5e631aac21 100644
--- a/lib/stdlib/doc/src/filelib.xml
+++ b/lib/stdlib/doc/src/filelib.xml
@@ -45,6 +45,30 @@
 
     <p>For more information about raw filenames, see the
       <seealso marker="kernel:file"><c>file</c></seealso> module.</p>
+
+    <note>
+      <p>
+	Functionality in this module generally assumes valid input and
+	does not necessarily fail on input that does not use a valid
+	encoding, but may instead very likely produce invalid output.
+      </p>
+      <p>
+	File operations used to accept filenames containing
+	null characters (integer value zero). This caused
+	the name to be truncated and in some cases arguments
+	to primitive operations to be mixed up. Filenames
+	containing null characters inside the filename
+	are now <em>rejected</em> and will cause primitive
+	file operations to fail.
+      </p>
+    </note>
+    <warning><p>
+      Currently null characters at the end of the filename
+      will be accepted by primitive file operations. Such
+      filenames are however still documented as invalid. The
+      implementation will also change in the future and
+      reject such filenames.
+    </p></warning>
   </description>
 
   <datatypes>
@@ -193,6 +217,11 @@
         <p>Other characters represent themselves. Only filenames that
           have exactly the same character in the same position match.
           Matching is case-sensitive, for example, "a" does not match "A".</p>
+	<p>Directory separators must always be written as <c>/</c>, even on
+	Windows.</p>
+	<p>A character preceded by <c>\</c> loses its special meaning. Note
+	that <c>\</c> must be written as <c>\\</c> in a string literal.
+	For example, "\\?*" will match any filename starting with <c>?</c>.</p>
         <p>Notice that multiple "*" characters are allowed
           (as in Unix wildcards, but opposed to Windows/DOS wildcards).</p>
         <p><em>Examples:</em></p>
diff --git a/lib/stdlib/doc/src/filename.xml b/lib/stdlib/doc/src/filename.xml
index 14fd5ef787..d2608ad542 100644
--- a/lib/stdlib/doc/src/filename.xml
+++ b/lib/stdlib/doc/src/filename.xml
@@ -46,7 +46,10 @@
       filename by removing redundant directory separators, use
       <seealso marker="#join/1"><c>join/1</c></seealso>.</p>
 
-    <p>The module supports raw filenames in the way that if a binary is
+    <p>
+      The module supports
+      <seealso marker="unicode_usage#notes-about-raw-filenames">raw
+      filenames</seealso> in the way that if a binary is
       present, or the filename cannot be interpreted according to the return
       value of <seealso marker="kernel:file#native_name_encoding/0">
       <c>file:native_name_encoding/0</c></seealso>, a raw filename is also
@@ -56,6 +59,30 @@
       (the join operation is performed of course). For more information
       about raw filenames, see the
       <seealso marker="kernel:file"><c>file</c></seealso> module.</p>
+
+    <note>
+      <p>
+	Functionality in this module generally assumes valid input and
+	does not necessarily fail on input that does not use a valid
+	encoding, but may instead very likely produce invalid output.
+      </p>
+      <p>
+	File operations used to accept filenames containing
+	null characters (integer value zero). This caused
+	the name to be truncated and in some cases arguments
+	to primitive operations to be mixed up. Filenames
+	containing null characters inside the filename
+	are now <em>rejected</em> and will cause primitive
+	file operations to fail.
+      </p>
+    </note>
+    <warning><p>
+      Currently null characters at the end of the filename
+      will be accepted by primitive file operations. Such
+      filenames are however still documented as invalid. The
+      implementation will also change in the future and
+      reject such filenames.
+    </p></warning>
   </description>
   <datatypes>
       <datatype>
@@ -555,6 +582,7 @@ unsafe</pre>
 ["a:/","msdev","include"]</pre>
       </desc>
     </func>
+
   </funcs>
 </erlref>
 
diff --git a/lib/stdlib/doc/src/gen_server.xml b/lib/stdlib/doc/src/gen_server.xml
index 7d137fc772..da74e793e6 100644
--- a/lib/stdlib/doc/src/gen_server.xml
+++ b/lib/stdlib/doc/src/gen_server.xml
@@ -60,6 +60,8 @@ gen_server:abcast     -----> Module:handle_cast/2
 
 -                     -----> Module:handle_info/2
 
+-                     -----> Module:handle_continue/2
+
 -                     -----> Module:terminate/2
 
 -                     -----> Module:code_change/3</pre>
@@ -88,6 +90,13 @@ gen_server:abcast     -----> Module:handle_cast/2
       implies at least two garbage collections (when hibernating and
       shortly after waking up) and is not something you want to do
       between each call to a busy server.</p>
+
+    <p>If the <c>gen_server</c> process needs to perform an action
+      immediately after initialization or to break the execution of a
+      callback into multiple steps, it can return <c>{continue,Continue}</c>
+      in place of the time-out or hibernation value, which will immediately
+      invoke the <c>handle_continue/2</c> callback.</p>
+
   </description>
 
   <funcs>
@@ -610,12 +619,15 @@ gen_server:abcast     -----> Module:handle_cast/2
         <v>State = term()</v>
         <v>Result = {reply,Reply,NewState} | {reply,Reply,NewState,Timeout}</v> 
         <v>&nbsp;&nbsp;| {reply,Reply,NewState,hibernate}</v>
+        <v>&nbsp;&nbsp;| {reply,Reply,NewState,{continue,Continue}}</v>
         <v>&nbsp;&nbsp;| {noreply,NewState} | {noreply,NewState,Timeout}</v> 
         <v>&nbsp;&nbsp;| {noreply,NewState,hibernate}</v>
+        <v>&nbsp;&nbsp;| {noreply,NewState,{continue,Continue}}</v>
         <v>&nbsp;&nbsp;| {stop,Reason,Reply,NewState} | {stop,Reason,NewState}</v>
         <v>&nbsp;Reply = term()</v>
         <v>&nbsp;NewState = term()</v>
         <v>&nbsp;Timeout = int()>=0 | infinity</v>
+        <v>&nbsp;Continue = term()</v>
         <v>&nbsp;Reason = term()</v>
       </type>
       <desc>
@@ -673,9 +685,11 @@ gen_server:abcast     -----> Module:handle_cast/2
         <v>State = term()</v>
         <v>Result = {noreply,NewState} | {noreply,NewState,Timeout}</v>
         <v>&nbsp;&nbsp;| {noreply,NewState,hibernate}</v>
+        <v>&nbsp;&nbsp;| {noreply,NewState,{continue,Continue}}</v>
         <v>&nbsp;&nbsp;| {stop,Reason,NewState}</v>
         <v>&nbsp;NewState = term()</v>
         <v>&nbsp;Timeout = int()>=0 | infinity</v>
+        <v>&nbsp;Continue = term()</v>
         <v>&nbsp;Reason = term()</v>
       </type>
       <desc>
@@ -690,6 +704,41 @@ gen_server:abcast     -----> Module:handle_cast/2
     </func>
 
     <func>
+      <name>Module:handle_continue(Continue, State) -> Result</name>
+      <fsummary>Handle a continue instruction.</fsummary>
+      <type>
+        <v>Continue = term()</v>
+        <v>State = term()</v>
+        <v>Result = {noreply,NewState} | {noreply,NewState,Timeout}</v>
+        <v>&nbsp;&nbsp;| {noreply,NewState,hibernate}</v>
+        <v>&nbsp;&nbsp;| {noreply,NewState,{continue,Continue}}</v>
+        <v>&nbsp;&nbsp;| {stop,Reason,NewState}</v>
+        <v>&nbsp;NewState = term()</v>
+        <v>&nbsp;Timeout = int()>=0 | infinity</v>
+        <v>&nbsp;Continue = term()</v>
+        <v>&nbsp;Reason = normal | term()</v>
+      </type>
+      <desc>
+        <note>
+          <p>This callback is optional, so callback modules need to
+            export it only if they return <c>{continue,Continue}</c>
+            from another callback. If continue is used and the callback
+            is not implemented, the process will exit with <c>undef</c>
+            error.</p>
+        </note>
+        <p>This function is called by a <c>gen_server</c> process whenever
+          a previous callback returns <c>{continue, Continue}</c>.
+          <c>handle_continue/2</c> is invoked immediately after the previous
+          callback, which makes it useful for performing work after
+          initialization or for splitting the work in a callback in
+          multiple steps, updating the process state along the way.</p>
+        <p>For a description of the other arguments and possible return values,
+          see <seealso marker="#Module:handle_call/3">
+          <c>Module:handle_call/3</c></seealso>.</p>
+      </desc>
+    </func>
+
+    <func>
       <name>Module:handle_info(Info, State) -> Result</name>
       <fsummary>Handle an incoming message.</fsummary>
       <type>
@@ -697,6 +746,7 @@ gen_server:abcast     -----> Module:handle_cast/2
         <v>State = term()</v>
         <v>Result = {noreply,NewState} | {noreply,NewState,Timeout}</v>
         <v>&nbsp;&nbsp;| {noreply,NewState,hibernate}</v>
+        <v>&nbsp;&nbsp;| {noreply,NewState,{continue,Continue}}</v>
         <v>&nbsp;&nbsp;| {stop,Reason,NewState}</v>
         <v>&nbsp;NewState = term()</v>
         <v>&nbsp;Timeout = int()>=0 | infinity</v>
@@ -726,7 +776,7 @@ gen_server:abcast     -----> Module:handle_cast/2
       <type>
         <v>Args = term()</v>
         <v>Result =  {ok,State} | {ok,State,Timeout} | {ok,State,hibernate}</v>
-        <v>&nbsp;| {stop,Reason} | ignore</v>
+        <v>&nbsp;| {ok,State,{continue,Continue}} | {stop,Reason} | ignore</v>
         <v>&nbsp;State = term()</v>
         <v>&nbsp;Timeout = int()>=0 | infinity</v>
         <v>&nbsp;Reason = term()</v>
diff --git a/lib/stdlib/doc/src/gen_statem.xml b/lib/stdlib/doc/src/gen_statem.xml
index 8de6ed754f..4a824f073e 100644
--- a/lib/stdlib/doc/src/gen_statem.xml
+++ b/lib/stdlib/doc/src/gen_statem.xml
@@ -1329,7 +1329,7 @@ handle_event(_, _, State, Data) ->
 	  <c><anno>T</anno></c> is the time-out time.
 	  <c>{clean_timeout,<anno>T</anno>}</c> works like
 	  just <c>T</c> described in the note above
-	  and uses a proxy process for <c>T &lt; infinity</c>,
+	  and uses a proxy process
 	  while <c>{dirty_timeout,<anno>T</anno>}</c>
 	  bypasses the proxy process which is more lightweight.
 	</p>
@@ -1339,8 +1339,12 @@ handle_event(_, _, State, Data) ->
 	    with <c>{dirty_timeout,<anno>T</anno>}</c>
 	    to avoid that the calling process dies when the call
 	    times out, you will have to be prepared to handle
-	    a late reply.
-	    So why not just let the calling process die?
+	    a late reply.  Note that there is an odd chance
+	    to get a late reply even with
+	    <c>{dirty_timeout,infinity}</c> or <c>infinity</c>
+	    for example in the event of network problems.
+	    So why not just let the calling process die
+	    by not catching the exception?
 	  </p>
 	</note>
 	<p>
diff --git a/lib/stdlib/doc/src/notes.xml b/lib/stdlib/doc/src/notes.xml
index bdd5b39cd3..d396f1de8f 100644
--- a/lib/stdlib/doc/src/notes.xml
+++ b/lib/stdlib/doc/src/notes.xml
@@ -31,6 +31,56 @@
   </header>
   <p>This document describes the changes made to the STDLIB application.</p>
 
+<section><title>STDLIB 3.4.2</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p> Fix a bug in the Erlang shell where recursively
+	    defined records with typed fields could cause a loop.
+	    </p>
+          <p>
+	    Own Id: OTP-14488 Aux Id: PR-1489 </p>
+        </item>
+        <item>
+          <p>
+	    Make edlin handle grapheme clusters instead of codepoints
+	    to improve the handling multi-codepoints characters.</p>
+          <p>
+	    Own Id: OTP-14542</p>
+        </item>
+        <item>
+	    <p>There could be false warnings for
+	    <c>erlang:get_stacktrace/0</c> being used outside of a
+	    <c>try</c> block when using multiple <c>catch</c>
+	    clauses.</p>
+          <p>
+	    Own Id: OTP-14600 Aux Id: ERL-478 </p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+	    <p> The Erlang code linter no longer checks that the
+	    functions mentioned in <c>nowarn_deprecated_function</c>
+	    options are declared in the module. </p>
+          <p>
+	    Own Id: OTP-14378</p>
+        </item>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>STDLIB 3.4.1</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
@@ -432,7 +482,7 @@
 	    marker="erts:erl"><c>erl</c></seealso> command.</p>
           <p>
 	    See <url
-	    href="http://pcre.org/original/changelog.txt"><c>http://pcre.org/original/changelog.txt</c></url>
+	    href="http://pcre.org/original/changelog.txt">http://pcre.org/original/changelog.txt</url>
 	    for information about changes made to PCRE between the
 	    versions 8.33 and 8.40.</p>
           <p>
diff --git a/lib/stdlib/doc/src/part_notes.xml b/lib/stdlib/doc/src/part_notes.xml
deleted file mode 100644
index 461de749dd..0000000000
--- a/lib/stdlib/doc/src/part_notes.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>STDLIB Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The Standard Erlang Libraries application, <em>STDLIB</em>,
-      contains modules for manipulating lists, strings and files etc.</p>
-    <p>For information about older versions, see
-      <url href="part_notes_history_frame.html">Release Notes History</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/stdlib/doc/src/part_notes_history.xml b/lib/stdlib/doc/src/part_notes_history.xml
deleted file mode 100644
index 8fd048a41e..0000000000
--- a/lib/stdlib/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2006</year>
-      <year>2016</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
- 
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>STDLIB Release Notes History</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The Standard Erlang Libraries application, <em>STDLIB</em>,
-      contains modules for manipulating lists, strings and files etc.</p>
-  </description>
-  <include file="notes_history"></include>
-</part>
-
diff --git a/lib/stdlib/doc/src/rand.xml b/lib/stdlib/doc/src/rand.xml
index a68fb7d55f..21f680a0ee 100644
--- a/lib/stdlib/doc/src/rand.xml
+++ b/lib/stdlib/doc/src/rand.xml
@@ -35,12 +35,19 @@
   <module>rand</module>
   <modulesummary>Pseudo random number generation.</modulesummary>
   <description>
-    <p>This module provides a random number generator. The module contains
-      a number of algorithms. The uniform distribution algorithms use the
-      <url href="http://xorshift.di.unimi.it">scrambled Xorshift algorithms by
-      Sebastiano Vigna</url>. The normal distribution algorithm uses the
-      <url href="http://www.jstatsoft.org/v05/i08">Ziggurat Method by Marsaglia
-      and Tsang</url>.</p>
+    <p>
+      This module provides a pseudo random number generator.
+      The module contains a number of algorithms.
+      The uniform distribution algorithms use the
+      <url href="http://xorshift.di.unimi.it">
+	xoroshiro116+ and xorshift1024* algorithms by Sebastiano Vigna.
+      </url>
+      The normal distribution algorithm uses the
+      <url href="http://www.jstatsoft.org/v05/i08">
+	Ziggurat Method by Marsaglia and Tsang
+      </url>
+      on top of the uniform distribution algorithm.
+    </p>
     <p>For some algorithms, jump functions are provided for generating
         non-overlapping sequences for parallel computations.
         The jump functions perform calculations
@@ -126,8 +133,9 @@
       variable <c>rand_seed</c> to remember the current state.</p>
 
     <p>If a process calls
-      <seealso marker="#uniform-0"><c>uniform/0</c></seealso> or
-      <seealso marker="#uniform-1"><c>uniform/1</c></seealso> without
+      <seealso marker="#uniform-0"><c>uniform/0</c></seealso>,
+      <seealso marker="#uniform-1"><c>uniform/1</c></seealso> or
+      <seealso marker="#uniform_real-0"><c>uniform_real/0</c></seealso> without
       setting a seed first, <seealso marker="#seed-1"><c>seed/1</c></seealso>
       is called automatically with the default algorithm and creates a
       non-constant seed.</p>
@@ -161,10 +169,17 @@ R3 = rand:uniform(),</pre>
 S0 = rand:seed_s(exrop),
 {R4, S1} = rand:uniform_s(S0),</pre>
 
+   <p>Textbook basic form Box-Muller standard normal deviate</p>
+
+   <pre>
+R5 = rand:uniform_real(),
+R6 = rand:uniform(),
+SND0 = math:sqrt(-2 * math:log(R5)) * math:cos(math:pi() * R6)</pre>
+
    <p>Create a standard normal deviate:</p>
 
    <pre>
-{SND0, S2} = rand:normal_s(S1),</pre>
+{SND1, S2} = rand:normal_s(S1),</pre>
 
    <p>Create a normal deviate with mean -3 and variance 0.5:</p>
 
@@ -393,9 +408,71 @@ tests. We suggest to use a sign test to extract a random Boolean value.</pre>
       <name name="uniform" arity="0"/>
       <fsummary>Return a random float.</fsummary>
       <desc><marker id="uniform-0"/>
-        <p>Returns a random float uniformly distributed in the value
+        <p>
+	  Returns a random float uniformly distributed in the value
           range <c>0.0 =&lt; <anno>X</anno> &lt; 1.0</c> and
-          updates the state in the process dictionary.</p>
+          updates the state in the process dictionary.
+	</p>
+	<p>
+	  The generated numbers are on the form N * 2.0^(-53),
+	  that is; equally spaced in the interval.
+	</p>
+	<warning>
+	  <p>
+	    This function may return exactly <c>0.0</c> which can be
+	    fatal for certain applications.  If that is undesired
+	    you can use <c>(1.0 - rand:uniform())</c> to get the
+	    interval <c>0.0 &lt; <anno>X</anno> =&lt; 1.0</c>, or instead use
+	    <seealso marker="#uniform_real-0"><c>uniform_real/0</c></seealso>.
+	  </p>
+	  <p>
+	    If neither endpoint is desired you can test and re-try
+	    like this:
+	  </p>
+	  <pre>
+my_uniform() ->
+    case rand:uniform() of
+        0.0 -> my_uniform();
+	X -> X
+    end
+end.</pre>
+	</warning>
+      </desc>
+    </func>
+
+    <func>
+      <name name="uniform_real" arity="0"/>
+      <fsummary>Return a random float.</fsummary>
+      <desc><marker id="uniform_real-0"/>
+        <p>
+	  Returns a random float
+	  uniformly distributed in the value range
+	  <c>DBL_MIN =&lt; <anno>X</anno> &lt; 1.0</c>
+	  and updates the state in the process dictionary.
+	</p>
+	<p>
+	  Conceptually, a random real number <c>R</c> is generated
+	  from the interval <c>0 =&lt; R &lt; 1</c> and then the
+	  closest rounded down normalized number
+	  in the IEEE 754 Double precision format
+	  is returned.
+	</p>
+	<note>
+	  <p>
+	    The generated numbers from this function has got better
+	    granularity for small numbers than the regular
+	    <seealso marker="#uniform-0"><c>uniform/0</c></seealso>
+	    because all bits in the mantissa are random.
+	    This property, in combination with the fact that exactly zero
+	    is never returned is useful for algoritms doing for example
+	    <c>1.0 / <anno>X</anno></c> or <c>math:log(<anno>X</anno>)</c>.
+	  </p>
+	</note>
+	<p>
+	  See
+	  <seealso marker="#uniform_real_s-1"><c>uniform_real_s/1</c></seealso>
+	  for more explanation.
+	</p>
       </desc>
     </func>
 
@@ -414,9 +491,97 @@ tests. We suggest to use a sign test to extract a random Boolean value.</pre>
       <name name="uniform_s" arity="1"/>
       <fsummary>Return a random float.</fsummary>
       <desc>
-        <p>Returns, for a specified state, random float
+        <p>
+	  Returns, for a specified state, random float
           uniformly distributed in the value range <c>0.0 =&lt;
-          <anno>X</anno> &lt; 1.0</c> and a new state.</p>
+          <anno>X</anno> &lt; 1.0</c> and a new state.
+	</p>
+	<p>
+	  The generated numbers are on the form N * 2.0^(-53),
+	  that is; equally spaced in the interval.
+	</p>
+	<warning>
+	  <p>
+	    This function may return exactly <c>0.0</c> which can be
+	    fatal for certain applications.  If that is undesired
+	    you can use <c>(1.0 - rand:uniform(State))</c> to get the
+	    interval <c>0.0 &lt; <anno>X</anno> =&lt; 1.0</c>, or instead use
+	    <seealso marker="#uniform_real_s-1"><c>uniform_real_s/1</c></seealso>.
+	  </p>
+	  <p>
+	    If neither endpoint is desired you can test and re-try
+	    like this:
+	  </p>
+	  <pre>
+my_uniform(State) ->
+    case rand:uniform(State) of
+        {0.0, NewState} -> my_uniform(NewState);
+	Result -> Result
+    end
+end.</pre>
+	</warning>
+      </desc>
+    </func>
+
+    <func>
+      <name name="uniform_real_s" arity="1"/>
+      <fsummary>Return a random float.</fsummary>
+      <desc>
+        <p>
+	  Returns, for a specified state, a random float
+	  uniformly distributed in the value range
+	  <c>DBL_MIN =&lt; <anno>X</anno> &lt; 1.0</c>
+	  and updates the state in the process dictionary.
+	</p>
+	<p>
+	  Conceptually, a random real number <c>R</c> is generated
+	  from the interval <c>0 =&lt; R &lt; 1</c> and then the
+	  closest rounded down normalized number
+	  in the IEEE 754 Double precision format
+	  is returned.
+	</p>
+	<note>
+	  <p>
+	    The generated numbers from this function has got better
+	    granularity for small numbers than the regular
+	    <seealso marker="#uniform_s-1"><c>uniform_s/1</c></seealso>
+	    because all bits in the mantissa are random.
+	    This property, in combination with the fact that exactly zero
+	    is never returned is useful for algoritms doing for example
+	    <c>1.0 / <anno>X</anno></c> or <c>math:log(<anno>X</anno>)</c>.
+	  </p>
+	</note>
+	<p>
+	  The concept implicates that the probability to get
+	  exactly zero is extremely low; so low that this function
+	  is in fact guaranteed to never return zero.  The smallest
+	  number that it might return is <c>DBL_MIN</c>, which is
+	  2.0^(-1022).
+	</p>
+	<p>
+	  The value range stated at the top of this function
+	  description is technically correct, but
+	  <c>0.0 =&lt; <anno>X</anno> &lt; 1.0</c>
+	  is a better description of the generated numbers'
+	  statistical distribution.  Except that exactly 0.0
+	  is never returned, which is not possible to observe
+	  statistically.
+	</p>
+	<p>
+	  For example; for all sub ranges
+	  <c>N*2.0^(-53) =&lt; X &lt; (N+1)*2.0^(-53)</c>
+	  where
+	  <c>0 =&lt; integer(N) &lt; 2.0^53</c>
+	  the probability is the same.
+	  Compare that with the form of the numbers generated by
+	  <seealso marker="#uniform_s-1"><c>uniform_s/1</c></seealso>.
+	</p>
+	<p>
+	  Having to generate extra random bits for
+	  small numbers costs a little performance.
+	  This function is about 20% slower than the regular
+	  <seealso marker="#uniform_s-1"><c>uniform_s/1</c></seealso>
+	</p>
       </desc>
     </func>
 
diff --git a/lib/stdlib/doc/src/string.xml b/lib/stdlib/doc/src/string.xml
index 9d5edd9ecf..130fc74a28 100644
--- a/lib/stdlib/doc/src/string.xml
+++ b/lib/stdlib/doc/src/string.xml
@@ -109,10 +109,8 @@
     <p>This module has been reworked in Erlang/OTP 20 to
     handle <seealso marker="unicode#type-chardata">
     <c>unicode:chardata()</c></seealso> and operate on grapheme
-    clusters. The <seealso marker="#oldapi"> <c>old
-    functions</c></seealso> that only work on Latin-1 lists as input
-    are still available but should not be
-    used. They will be deprecated in Erlang/OTP 21.
+    clusters. The <c>old functions</c> that only work on Latin-1 lists as input
+    are kept for backwards compatibility reasons but should not be used.
     </p>
   </description>
 
@@ -594,7 +592,7 @@ ÖÄÅ</pre>
 	  or <c>both</c>, indicates from which direction characters
 	  are to be removed.
 	</p>
-	<p> Default <c><anno>Characters</anno></c> are the set of
+	<p> Default <c><anno>Characters</anno></c> is the set of
 	nonbreakable whitespace codepoints, defined as
 	Pattern_White_Space in
 	<url href="http://unicode.org/reports/tr31/">Unicode Standard Annex #31</url>.
@@ -631,393 +629,5 @@ ÖÄÅ</pre>
     </func>
 
   </funcs>
-
-  <section>
-    <marker id="oldapi"/>
-    <title>Obsolete API functions</title>
-    <p>Here follows the function of the old API.
-    These functions only work on a list of Latin-1 characters.
-    </p>
-    <note><p>
-      The functions are kept for backward compatibility, but are
-      not recommended.
-      They will be deprecated in Erlang/OTP 21.
-    </p>
-    <p>Any undocumented functions in <c>string</c> are not to be used.</p>
-    </note>
-  </section>
-
-  <funcs>
-    <func>
-      <name name="centre" arity="2"/>
-      <name name="centre" arity="3"/>
-      <fsummary>Center a string.</fsummary>
-      <desc>
-        <p>Returns a string, where <c><anno>String</anno></c> is centered in the
-          string and surrounded by blanks or <c><anno>Character</anno></c>.
-	  The resulting string has length <c><anno>Number</anno></c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#pad/3"><c>pad/3</c></seealso>.
-	</p>
-      </desc>
-    </func>
-
-    <func>
-      <name name="chars" arity="2"/>
-      <name name="chars" arity="3"/>
-      <fsummary>Return a string consisting of numbers of characters.</fsummary>
-      <desc>
-        <p>Returns a string consisting of <c><anno>Number</anno></c> characters
-          <c><anno>Character</anno></c>. Optionally, the string can end with
-          string <c><anno>Tail</anno></c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="lists#duplicate/2"><c>lists:duplicate/2</c></seealso>.</p>
-      </desc>
-    </func>
-
-    <func>
-      <name name="chr" arity="2"/>
-      <fsummary>Return the index of the first occurrence of
-        a character in a string.</fsummary>
-      <desc>
-        <p>Returns the index of the first occurrence of
-          <c><anno>Character</anno></c> in <c><anno>String</anno></c>. Returns
-          <c>0</c> if <c><anno>Character</anno></c> does not occur.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#find/2"><c>find/2</c></seealso>.</p>
-      </desc>
-    </func>
-
-    <func>
-      <name name="concat" arity="2"/>
-      <fsummary>Concatenate two strings.</fsummary>
-      <desc>
-        <p>Concatenates <c><anno>String1</anno></c> and
-          <c><anno>String2</anno></c> to form a new string
-          <c><anno>String3</anno></c>, which is returned.</p>
-	<p>
-	  This function is <seealso marker="#oldapi">obsolete</seealso>.
-	  Use <c>[<anno>String1</anno>, <anno>String2</anno>]</c> as
-	  <c>Data</c> argument, and call
-	  <seealso marker="unicode#characters_to_list/2">
-	  <c>unicode:characters_to_list/2</c></seealso> or
-	  <seealso marker="unicode#characters_to_binary/2">
-	  <c>unicode:characters_to_binary/2</c></seealso>
-	  to flatten the output.
-	</p>
-      </desc>
-    </func>
-
-    <func>
-      <name name="copies" arity="2"/>
-      <fsummary>Copy a string.</fsummary>
-      <desc>
-        <p>Returns a string containing <c><anno>String</anno></c> repeated
-          <c><anno>Number</anno></c> times.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="lists#duplicate/2"><c>lists:duplicate/2</c></seealso>.</p>
-      </desc>
-    </func>
-
-    <func>
-      <name name="cspan" arity="2"/>
-      <fsummary>Span characters at start of a string.</fsummary>
-      <desc>
-        <p>Returns the length of the maximum initial segment of
-          <c><anno>String</anno></c>, which consists entirely of characters
-          not from <c><anno>Chars</anno></c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#take/3"><c>take/3</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> string:cspan("\t    abcdef", " \t").
-0</code>
-      </desc>
-    </func>
-
-    <func>
-      <name name="join" arity="2"/>
-      <fsummary>Join a list of strings with separator.</fsummary>
-      <desc>
-        <p>Returns a string with the elements of <c><anno>StringList</anno></c>
-          separated by the string in <c><anno>Separator</anno></c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="lists#join/2"><c>lists:join/2</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> join(["one", "two", "three"], ", ").
-"one, two, three"</code>
-      </desc>
-    </func>
-
-    <func>
-      <name name="left" arity="2"/>
-      <name name="left" arity="3"/>
-      <fsummary>Adjust left end of a string.</fsummary>
-      <desc>
-        <p>Returns <c><anno>String</anno></c> with the length adjusted in
-          accordance with <c><anno>Number</anno></c>. The left margin is
-          fixed. If <c>length(<anno>String</anno>)</c> &lt;
-          <c><anno>Number</anno></c>, then <c><anno>String</anno></c> is padded
-          with blanks or <c><anno>Character</anno></c>s.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#pad/2"><c>pad/2</c></seealso> or
-	<seealso marker="#pad/3"><c>pad/3</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> string:left("Hello",10,$.).
-"Hello....."</code>
-      </desc>
-    </func>
-
-    <func>
-      <name name="len" arity="1"/>
-      <fsummary>Return the length of a string.</fsummary>
-      <desc>
-        <p>Returns the number of characters in <c><anno>String</anno></c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#length/1"><c>length/1</c></seealso>.</p>
-      </desc>
-    </func>
-
-    <func>
-      <name name="rchr" arity="2"/>
-      <fsummary>Return the index of the last occurrence of
-        a character in a string.</fsummary>
-      <desc>
-        <p>Returns the index of the last occurrence of
-          <c><anno>Character</anno></c> in <c><anno>String</anno></c>. Returns
-          <c>0</c> if <c><anno>Character</anno></c> does not occur.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#find/3"><c>find/3</c></seealso>.</p>
-      </desc>
-    </func>
-
-    <func>
-      <name name="right" arity="2"/>
-      <name name="right" arity="3"/>
-      <fsummary>Adjust right end of a string.</fsummary>
-      <desc>
-        <p>Returns <c><anno>String</anno></c> with the length adjusted in
-          accordance with <c><anno>Number</anno></c>. The right margin is
-          fixed. If the length of <c>(<anno>String</anno>)</c> &lt;
-          <c><anno>Number</anno></c>, then <c><anno>String</anno></c> is padded
-          with blanks or <c><anno>Character</anno></c>s.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#pad/3"><c>pad/3</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> string:right("Hello", 10, $.).
-".....Hello"</code>
-      </desc>
-    </func>
-
-    <func>
-      <name name="rstr" arity="2"/>
-      <fsummary>Find the index of a substring.</fsummary>
-      <desc>
-        <p>Returns the position where the last occurrence of
-          <c><anno>SubString</anno></c> begins in <c><anno>String</anno></c>.
-          Returns <c>0</c> if <c><anno>SubString</anno></c>
-          does not exist in <c><anno>String</anno></c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#find/3"><c>find/3</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> string:rstr(" Hello Hello World World ", "Hello World").
-8</code>
-      </desc>
-    </func>
-
-    <func>
-      <name name="span" arity="2"/>
-      <fsummary>Span characters at start of a string.</fsummary>
-      <desc>
-        <p>Returns the length of the maximum initial segment of
-          <c><anno>String</anno></c>, which consists entirely of characters
-          from <c><anno>Chars</anno></c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#take/2"><c>take/2</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> string:span("\t    abcdef", " \t").
-5</code>
-      </desc>
-    </func>
-
-    <func>
-      <name name="str" arity="2"/>
-      <fsummary>Find the index of a substring.</fsummary>
-      <desc>
-        <p>Returns the position where the first occurrence of
-          <c><anno>SubString</anno></c> begins in <c><anno>String</anno></c>.
-          Returns <c>0</c> if <c><anno>SubString</anno></c>
-          does not exist in <c><anno>String</anno></c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#find/2"><c>find/2</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> string:str(" Hello Hello World World ", "Hello World").
-8</code>
-      </desc>
-    </func>
-
-    <func>
-      <name name="strip" arity="1"/>
-      <name name="strip" arity="2"/>
-      <name name="strip" arity="3"/>
-      <fsummary>Strip leading or trailing characters.</fsummary>
-      <desc>
-        <p>Returns a string, where leading or trailing, or both, blanks or a
-          number of <c><anno>Character</anno></c> have been removed.
-          <c><anno>Direction</anno></c>, which can be <c>left</c>, <c>right</c>,
-          or <c>both</c>, indicates from which direction blanks are to be
-          removed. <c>strip/1</c> is equivalent to
-          <c>strip(String, both)</c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#trim/3"><c>trim/3</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> string:strip("...Hello.....", both, $.).
-"Hello"</code>
-      </desc>
-    </func>
-
-    <func>
-      <name name="sub_string" arity="2"/>
-      <name name="sub_string" arity="3"/>
-      <fsummary>Extract a substring.</fsummary>
-      <desc>
-        <p>Returns a substring of <c><anno>String</anno></c>, starting at
-          position <c><anno>Start</anno></c> to the end of the string, or to
-          and including position <c><anno>Stop</anno></c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#slice/3"><c>slice/3</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-sub_string("Hello World", 4, 8).
-"lo Wo"</code>
-      </desc>
-    </func>
-
-    <func>
-      <name name="substr" arity="2"/>
-      <name name="substr" arity="3"/>
-      <fsummary>Return a substring of a string.</fsummary>
-      <desc>
-        <p>Returns a substring of <c><anno>String</anno></c>, starting at
-          position <c><anno>Start</anno></c>, and ending at the end of the
-          string or at length <c><anno>Length</anno></c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#slice/3"><c>slice/3</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> substr("Hello World", 4, 5).
-"lo Wo"</code>
-      </desc>
-    </func>
-
-    <func>
-      <name name="sub_word" arity="2"/>
-      <name name="sub_word" arity="3"/>
-      <fsummary>Extract subword.</fsummary>
-      <desc>
-        <p>Returns the word in position <c><anno>Number</anno></c> of
-          <c><anno>String</anno></c>. Words are separated by blanks or
-          <c><anno>Character</anno></c>s.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#nth_lexeme/3"><c>nth_lexeme/3</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> string:sub_word(" Hello old boy !",3,$o).
-"ld b"</code>
-      </desc>
-    </func>
-
-    <func>
-      <name name="to_lower" arity="1" clause_i="1"/>
-      <name name="to_lower" arity="1" clause_i="2"/>
-      <name name="to_upper" arity="1" clause_i="1"/>
-      <name name="to_upper" arity="1" clause_i="2"/>
-      <fsummary>Convert case of string (ISO/IEC 8859-1).</fsummary>
-      <type variable="String" name_i="1"/>
-      <type variable="Result" name_i="1"/>
-      <type variable="Char"/>
-      <type variable="CharResult"/>
-      <desc>
-        <p>The specified string or character is case-converted. Notice that
-          the supported character set is ISO/IEC 8859-1 (also called Latin 1);
-          all values outside this set are unchanged</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso> use
-	<seealso marker="#lowercase/1"><c>lowercase/1</c></seealso>,
-	<seealso marker="#uppercase/1"><c>uppercase/1</c></seealso>,
-	<seealso marker="#titlecase/1"><c>titlecase/1</c></seealso> or
-	<seealso marker="#casefold/1"><c>casefold/1</c></seealso>.</p>
-      </desc>
-    </func>
-
-    <func>
-      <name name="tokens" arity="2"/>
-      <fsummary>Split string into tokens.</fsummary>
-      <desc>
-        <p>Returns a list of tokens in <c><anno>String</anno></c>, separated
-          by the characters in <c><anno>SeparatorList</anno></c>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> tokens("abc defxxghix jkl", "x ").
-["abc", "def", "ghi", "jkl"]</code>
-        <p>Notice that, as shown in this example, two or more
-          adjacent separator characters in <c><anno>String</anno></c>
-          are treated as one. That is, there are no empty
-          strings in the resulting list of tokens.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#lexemes/2"><c>lexemes/2</c></seealso>.</p>
-      </desc>
-    </func>
-
-    <func>
-      <name name="words" arity="1"/>
-      <name name="words" arity="2"/>
-      <fsummary>Count blank separated words.</fsummary>
-      <desc>
-        <p>Returns the number of words in <c><anno>String</anno></c>, separated
-          by blanks or <c><anno>Character</anno></c>.</p>
-	<p>This function is <seealso marker="#oldapi">obsolete</seealso>.
-	Use
-	<seealso marker="#lexemes/2"><c>lexemes/2</c></seealso>.</p>
-        <p><em>Example:</em></p>
-        <code type="none">
-> words(" Hello old boy!", $o).
-4</code>
-      </desc>
-    </func>
-  </funcs>
-
-  <section>
-    <title>Notes</title>
-    <p>Some of the general string functions can seem to overlap each
-      other. The reason is that this string package is the
-      combination of two earlier packages and all functions of
-      both packages have been retained.</p>
-  </section>
-
 </erlref>
 
diff --git a/lib/stdlib/doc/src/unicode_usage.xml b/lib/stdlib/doc/src/unicode_usage.xml
index 26dc46719e..789e063c12 100644
--- a/lib/stdlib/doc/src/unicode_usage.xml
+++ b/lib/stdlib/doc/src/unicode_usage.xml
@@ -719,8 +719,8 @@ Eshell V5.10.1  (abort with ^G)
   </section> 
 
   <section>
-    <title>Unicode Filenames</title>
     <marker id="unicode_file_names"/>
+    <title>Unicode Filenames</title>
     <p>Most modern operating systems support Unicode filenames in some way.
       There are many different ways to do this and Erlang by default treats the
       different approaches differently:</p>
@@ -855,8 +855,12 @@ Eshell V5.10.1  (abort with ^G)
     </note>
 
     <section>
-      <title>Notes About Raw Filenames</title>
       <marker id="notes-about-raw-filenames"/>
+      <title>Notes About Raw Filenames</title>
+      <note><p>
+	Note that raw filenames <em>not</em> necessarily are encoded the
+	same way as on the OS level.
+      </p></note>
       <p>Raw filenames were introduced together with Unicode filename support
         in ERTS 5.8.2 (Erlang/OTP R14B01). The reason &quot;raw
         filenames&quot; were introduced in the system was
diff --git a/lib/stdlib/doc/src/user_guide.gif b/lib/stdlib/doc/src/user_guide.gif
deleted file mode 100644
index e6275a803d..0000000000
--- a/lib/stdlib/doc/src/user_guide.gif
+++ /dev/null
diff --git a/lib/stdlib/src/base64.erl b/lib/stdlib/src/base64.erl
index 5885745fb1..c8cf6fdffe 100644
--- a/lib/stdlib/src/base64.erl
+++ b/lib/stdlib/src/base64.erl
@@ -113,9 +113,9 @@ encode_binary(Bin) ->
       Data :: ascii_binary().
 
 decode(Bin) when is_binary(Bin) ->
-    decode_binary(<<>>, Bin);
+    decode_binary(Bin, <<>>);
 decode(List) when is_list(List) ->
-    list_to_binary(decode_l(List)).
+    decode_list(List, <<>>).
 
 -spec mime_decode(Base64) -> Data when
       Base64 :: ascii_string() | ascii_binary(),
@@ -186,31 +186,41 @@ mime_decode_to_string(List) when is_list(List) ->
 	 bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,
 	 bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad,bad}).
 
-decode_binary(Result0, <<C:8,T0/bits>>) ->
-    case element(C, ?DECODE_MAP) of
-	bad ->
-	    erlang:error({badarg,C});
-	ws ->
-	    decode_binary(Result0, T0);
-	eq ->
-	    case strip_ws(T0) of
-		<<$=:8,T/binary>> ->
-		    <<>> = strip_ws(T),
-		    Split = byte_size(Result0) - 1,
-		    <<Result:Split/bytes,_:4>> = Result0,
-		    Result;
-		T ->
-		    <<>> = strip_ws(T),
-		    Split = byte_size(Result0) - 1,
-		    <<Result:Split/bytes,_:2>> = Result0,
-		    Result
-	    end;
-	Bits ->
-	    decode_binary(<<Result0/bits,Bits:6>>, T0)
+decode_binary(<<C1:8, Cs/bits>>, A) ->
+    case element(C1, ?DECODE_MAP) of
+        ws -> decode_binary(Cs, A);
+        B1 -> decode_binary(Cs, A, B1)
     end;
-decode_binary(Result, <<>>) ->
-    true = is_binary(Result),
-    Result.
+decode_binary(<<>>, A) ->
+    A.
+
+decode_binary(<<C2:8, Cs/bits>>, A, B1) ->
+    case element(C2, ?DECODE_MAP) of
+        ws -> decode_binary(Cs, A, B1);
+        B2 -> decode_binary(Cs, A, B1, B2)
+    end.
+
+decode_binary(<<C3:8, Cs/bits>>, A, B1, B2) ->
+    case element(C3, ?DECODE_MAP) of
+        ws -> decode_binary(Cs, A, B1, B2);
+        B3 -> decode_binary(Cs, A, B1, B2, B3)
+    end.
+
+decode_binary(<<C4:8, Cs/bits>>, A, B1, B2, B3) ->
+    case element(C4, ?DECODE_MAP) of
+        ws                -> decode_binary(Cs, A, B1, B2, B3);
+        eq when B3 =:= eq -> only_ws_binary(Cs, <<A/binary,B1:6,(B2 bsr 4):2>>);
+        eq                -> only_ws_binary(Cs, <<A/binary,B1:6,B2:6,(B3 bsr 2):4>>);
+        B4                -> decode_binary(Cs, <<A/binary,B1:6,B2:6,B3:6,B4:6>>)
+    end.
+
+only_ws_binary(<<>>, A) ->
+    A;
+only_ws_binary(<<C:8, Cs/bits>>, A) ->
+    case element(C, ?DECODE_MAP) of
+        ws -> only_ws_binary(Cs, A);
+        _ -> erlang:error(function_clause)
+    end.
 
 %% Skipping pad character if not at end of string. Also liberal about
 %% excess padding and skipping of other illegal (non-base64 alphabet)
@@ -262,6 +272,42 @@ mime_decode_binary_after_eq(Result0, <<>>, Eq) ->
             Result
     end.
 
+decode_list([C1 | Cs], A) ->
+    case element(C1, ?DECODE_MAP) of
+        ws -> decode_list(Cs, A);
+        B1 -> decode_list(Cs, A, B1)
+    end;
+decode_list([], A) ->
+    A.
+
+decode_list([C2 | Cs], A, B1) ->
+    case element(C2, ?DECODE_MAP) of
+        ws -> decode_list(Cs, A, B1);
+        B2 -> decode_list(Cs, A, B1, B2)
+    end.
+
+decode_list([C3 | Cs], A, B1, B2) ->
+    case element(C3, ?DECODE_MAP) of
+        ws -> decode_list(Cs, A, B1, B2);
+        B3 -> decode_list(Cs, A, B1, B2, B3)
+    end.
+
+decode_list([C4 | Cs], A, B1, B2, B3) ->
+    case element(C4, ?DECODE_MAP) of
+        ws                -> decode_list(Cs, A, B1, B2, B3);
+        eq when B3 =:= eq -> only_ws(Cs, <<A/binary,B1:6,(B2 bsr 4):2>>);
+        eq                -> only_ws(Cs, <<A/binary,B1:6,B2:6,(B3 bsr 2):4>>);
+        B4                -> decode_list(Cs, <<A/binary,B1:6,B2:6,B3:6,B4:6>>)
+    end.
+
+only_ws([], A) ->
+    A;
+only_ws([C | Cs], A) ->
+    case element(C, ?DECODE_MAP) of
+        ws -> only_ws(Cs, A);
+        _ -> erlang:error(function_clause)
+    end.
+
 decode([], A) -> A;
 decode([$=,$=,C2,C1|Cs], A) ->
     Bits2x6 = (b64d(C1) bsl 18) bor (b64d(C2) bsl 12),
@@ -292,16 +338,6 @@ strip_spaces([$\r|Cs], A) -> strip_spaces(Cs, A);
 strip_spaces([$\n|Cs], A) -> strip_spaces(Cs, A);
 strip_spaces([C|Cs], A) -> strip_spaces(Cs, [C | A]).
 
-strip_ws(<<$\t,T/binary>>) ->
-    strip_ws(T);
-strip_ws(<<$\n,T/binary>>) ->
-    strip_ws(T);
-strip_ws(<<$\r,T/binary>>) ->
-    strip_ws(T);
-strip_ws(<<$\s,T/binary>>) ->
-    strip_ws(T);
-strip_ws(T) -> T.
-
 %% Skipping pad character if not at end of string. Also liberal about
 %% excess padding and skipping of other illegal (non-base64 alphabet)
 %% characters. See section 3.3 of RFC4648
diff --git a/lib/stdlib/src/c.erl b/lib/stdlib/src/c.erl
index c04a201ce1..9a447af5b7 100644
--- a/lib/stdlib/src/c.erl
+++ b/lib/stdlib/src/c.erl
@@ -668,19 +668,23 @@ lm() ->
     [l(M) || M <- mm()].
 
 %% erlangrc(Home)
-%%  Try to run a ".erlang" file, first in the current directory
-%%  else in home directory.
+%%  Try to run a ".erlang" file in home directory.
+
+-spec erlangrc() -> {ok, file:filename()} | {error, term()}.
 
 erlangrc() ->
     case init:get_argument(home) of
 	{ok,[[Home]]} ->
 	    erlangrc([Home]);
 	_ ->
-	    f_p_e(["."], ".erlang")
+            {error, enoent}
     end.
 
-erlangrc([Home]) ->
-    f_p_e([".",Home], ".erlang").
+-spec erlangrc(PathList) -> {ok, file:filename()} | {error, term()}
+                                when PathList :: [Dir :: file:name()].
+
+erlangrc([Home|_]=Paths) when is_list(Home) ->
+    f_p_e(Paths, ".erlang").
 
 error(Fmt, Args) ->
     error_logger:error_msg(Fmt, Args).
@@ -692,11 +696,11 @@ f_p_e(P, F) ->
 	{error, E={Line, _Mod, _Term}} ->
 	    error("file:path_eval(~tp,~tp): error on line ~p: ~ts~n",
 		  [P, F, Line, file:format_error(E)]),
-	    ok;
+	    {error, E};
 	{error, E} ->
 	    error("file:path_eval(~tp,~tp): ~ts~n",
 		  [P, F, file:format_error(E)]),
-	    ok;
+	    {error, E};
 	Other ->
 	    Other
     end.
diff --git a/lib/stdlib/src/dets.erl b/lib/stdlib/src/dets.erl
index 10e8c9c800..4e3fe0e5c1 100644
--- a/lib/stdlib/src/dets.erl
+++ b/lib/stdlib/src/dets.erl
@@ -1354,7 +1354,7 @@ open_file_loop2(Head, N) ->
                                   ?MODULE, [], Head);
         Message ->
             error_logger:format("** dets: unexpected message"
-                                "(ignored): ~w~n", [Message]),
+                                "(ignored): ~tw~n", [Message]),
             open_file_loop(Head, N)
     end.
 
@@ -1403,7 +1403,7 @@ apply_op(Op, From, Head, N) ->
 		    Head;
 		_Dirty when N =:= 0 -> % dirty or new_dirty
 		    %% The updates seems to have declined
-		    dets_utils:vformat("** dets: Auto save of ~p\n", 
+		    dets_utils:vformat("** dets: Auto save of ~tp\n",
                                        [Head#head.name]), 
 		    {NewHead, _Res} = perform_save(Head, true),
 		    erlang:garbage_collect(),
@@ -1587,13 +1587,13 @@ bug_found(Name, Op, Bad, From) ->
             %% If stream_op/5 found more requests, this is not
             %% the last operation.
             error_logger:format
-              ("** dets: Bug was found when accessing table ~w,~n"
-               "** dets: operation was ~p and reply was ~w.~n"
-               "** dets: Stacktrace: ~w~n",
+              ("** dets: Bug was found when accessing table ~tw,~n"
+               "** dets: operation was ~tp and reply was ~tw.~n"
+               "** dets: Stacktrace: ~tw~n",
                [Name, Op, Bad, erlang:get_stacktrace()]);
         false ->
             error_logger:format
-              ("** dets: Bug was found when accessing table ~w~n",
+              ("** dets: Bug was found when accessing table ~tw~n",
                [Name])
     end,
     if
@@ -2117,7 +2117,7 @@ do_open_file([Fname, Verbose], Parent, Server, Ref) ->
 	    Error;
 	Bad ->
 	    error_logger:format
-	      ("** dets: Bug was found in open_file/1, reply was ~w.~n", 
+	      ("** dets: Bug was found in open_file/1, reply was ~tw.~n",
 	       [Bad]),
 	    {error, {dets_bug, Fname, Bad}}
     end;
@@ -2135,7 +2135,7 @@ do_open_file([Tab, OpenArgs, Verb], Parent, Server, _Ref) ->
 	Bad ->
 	    error_logger:format
 	      ("** dets: Bug was found in open_file/2, arguments were~n"
-	       "** dets: ~w and reply was ~w.~n", 
+	       "** dets: ~tw and reply was ~tw.~n",
 	       [OpenArgs, Bad]),
 	    {error, {dets_bug, Tab, {open_file, OpenArgs}, Bad}}
     end.
@@ -3123,7 +3123,7 @@ check_safe_fixtable(Head) ->
          ((get(verbose) =:= yes) orelse dets_utils:debug_mode()) of
         true ->
             error_logger:format
-              ("** dets: traversal of ~p needs safe_fixtable~n",
+              ("** dets: traversal of ~tp needs safe_fixtable~n",
                [Head#head.name]);
         false ->
             ok
@@ -3189,7 +3189,7 @@ scan_read(H, From, _To, Min, _L, Ts, R, C) ->
 err(Error) ->
     case get(verbose) of
 	yes -> 
-	    error_logger:format("** dets: failed with ~w~n", [Error]),
+	    error_logger:format("** dets: failed with ~tw~n", [Error]),
 	    Error;
 	undefined  ->
 	    Error
diff --git a/lib/stdlib/src/dets_utils.erl b/lib/stdlib/src/dets_utils.erl
index da6ebd18f2..17f55ebdc2 100644
--- a/lib/stdlib/src/dets_utils.erl
+++ b/lib/stdlib/src/dets_utils.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2001-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2017. All Rights Reserved.
 %% 
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -387,7 +387,7 @@ corrupt_reason(Head, Reason0) ->
 corrupt(Head, Error) ->
     case get(verbose) of
 	yes -> 
-	    error_logger:format("** dets: Corrupt table ~p: ~tp\n", 
+	    error_logger:format("** dets: Corrupt table ~tp: ~tp\n",
 				[Head#head.name, Error]);
 	_ -> ok
     end,
diff --git a/lib/stdlib/src/edlin.erl b/lib/stdlib/src/edlin.erl
index 64d5a71f3c..5df9c504f9 100644
--- a/lib/stdlib/src/edlin.erl
+++ b/lib/stdlib/src/edlin.erl
@@ -412,12 +412,12 @@ do_op(backward_word, Bef0, Aft0, Rs) ->
     {Bef1,Aft1,N0} = over_non_word(Bef0, Aft0, 0),
     {Bef,Aft,N} = over_word(Bef1, Aft1, N0),
     {{Bef,Aft},[{move_rel,-N}|Rs]};
-do_op(beginning_of_line, [C|Bef], Aft, Rs) ->
-    {{[],reverse(Bef, [C|Aft])},[{move_rel,-(cp_len(Bef)+1)}|Rs]};
+do_op(beginning_of_line, [_|_]=Bef, Aft, Rs) ->
+    {{[],reverse(Bef, Aft)},[{move_rel,-(cp_len(Bef))}|Rs]};
 do_op(beginning_of_line, [], Aft, Rs) ->
     {{[],Aft},Rs};
-do_op(end_of_line, Bef, [C|Aft], Rs) ->
-    {{reverse(Aft, [C|Bef]),[]},[{move_rel,cp_len(Aft)+1}|Rs]};
+do_op(end_of_line, Bef, [_|_]=Aft, Rs) ->
+    {{reverse(Aft, Bef),[]},[{move_rel,cp_len(Aft)}|Rs]};
 do_op(end_of_line, Bef, [], Rs) ->
     {{Bef,[]},Rs};
 do_op(ctlu, Bef, Aft, Rs) ->
diff --git a/lib/stdlib/src/edlin_expand.erl b/lib/stdlib/src/edlin_expand.erl
index a1a97af4c5..bdcefda6e5 100644
--- a/lib/stdlib/src/edlin_expand.erl
+++ b/lib/stdlib/src/edlin_expand.erl
@@ -23,7 +23,7 @@
 
 -export([expand/1, format_matches/1]).
 
--import(lists, [reverse/1, nthtail/2, prefix/2]).
+-import(lists, [reverse/1, prefix/2]).
 
 %% expand(CurrentBefore) ->
 %%	{yes, Expansion, Matches} | {no, Matches}
@@ -75,15 +75,15 @@ to_atom(Str) ->
     end.
 
 match(Prefix, Alts, Extra0) ->
-    Len = length(Prefix),
+    Len = string:length(Prefix),
     Matches = lists:sort(
 		[{S, A} || {H, A} <- Alts,
-			   prefix(Prefix, S=hd(io_lib:fwrite("~w",[H])))]),
+			   prefix(Prefix, S=flat_write(H))]),
     case longest_common_head([N || {N, _} <- Matches]) of
  	{partial, []} ->
  	    {no, [], Matches}; % format_matches(Matches)};
  	{partial, Str} ->
- 	    case nthtail(Len, Str) of
+            case string:slice(Str, Len) of
  		[] ->
 		    {yes, [], Matches}; % format_matches(Matches)};
  		Remain ->
@@ -94,18 +94,21 @@ match(Prefix, Alts, Extra0) ->
 			{"(",[{Str,0}]} -> "()";
 			{_,_} -> Extra0
 		    end,
-	    {yes, nthtail(Len, Str) ++ Extra, []};
+	    {yes, string:slice(Str, Len) ++ Extra, []};
  	no ->
  	    {no, [], []}
     end.
 
+flat_write(T) ->
+    lists:flatten(io_lib:fwrite("~tw",[T])).
+
 %% Return the list of names L in multiple columns.
 format_matches(L) ->
     {S1, Dots} = format_col(lists:sort(L), []),
     S = case Dots of
             true ->
                 {_, Prefix} = longest_common_head(vals(L)),
-                PrefixLen = length(Prefix),
+                PrefixLen = string:length(Prefix),
                 case PrefixLen =< 3 of
                     true -> S1; % Do not replace the prefix with "...".
                     false ->
@@ -128,7 +131,7 @@ format_col([A|T], Width, Len, Acc0, LL, Dots) ->
     {H0, R} = format_val(A),
     Hmax = LL - length(R),
     {H, NewDots} =
-        case length(H0) > Hmax of
+        case string:length(H0) > Hmax of
             true -> {io_lib:format("~-*ts", [Hmax - 3, H0]) ++ "...", true};
             false -> {H0, Dots}
         end,
@@ -149,12 +152,12 @@ format_val(H) ->
 field_width(L, LL) -> field_width(L, 0, LL).
 
 field_width([{H,_}|T], W, LL) ->
-    case length(H) of
+    case string:length(H) of
         L when L > W -> field_width(T, L, LL);
         _ -> field_width(T, W, LL)
     end;
 field_width([H|T], W, LL) ->
-    case length(H) of
+    case string:length(H) of
         L when L > W -> field_width(T, L, LL);
         _ -> field_width(T, W, LL)
     end;
@@ -169,10 +172,11 @@ vals([S|L]) -> [S|vals(L)].
 
 leading_dots([], _Len) -> [];
 leading_dots([{H, I}|L], Len) ->
-    [{"..." ++ nthtail(Len, H), I}|leading_dots(L, Len)];
+    [{"..." ++ string:slice(H, Len), I}|leading_dots(L, Len)];
 leading_dots([H|L], Len) ->
-    ["..." ++ nthtail(Len, H)|leading_dots(L, Len)].
+    ["..." ++ string:slice(H, Len)|leading_dots(L, Len)].
 
+%% Strings are handled naively, but it should be OK here.
 longest_common_head([]) ->
     no;
 longest_common_head(LL) ->
diff --git a/lib/stdlib/src/epp.erl b/lib/stdlib/src/epp.erl
index 31d0d499e3..00e6a10d8a 100644
--- a/lib/stdlib/src/epp.erl
+++ b/lib/stdlib/src/epp.erl
@@ -479,7 +479,7 @@ com_enc(_B, _Fun, _N, L, Ps) ->
     com_enc_end([L | Ps]).
 
 com_enc_end(Ps0) ->
-    Ps = lists:reverse([lists:reverse(string:to_lower(P)) || P <- Ps0]),
+    Ps = lists:reverse([lists:reverse(lowercase(P)) || P <- Ps0]),
     com_encoding(Ps).
 
 com_encoding(["latin","1"|_]) ->
@@ -489,6 +489,9 @@ com_encoding(["utf","8"|_]) ->
 com_encoding(_) ->
     throw(no). % Don't try any further
 
+lowercase(S) ->
+    unicode:characters_to_list(string:lowercase(S)).
+
 normalize_typed_record_fields([]) ->
     {typed, []};
 normalize_typed_record_fields(Fields) ->
diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl
index 65ba343368..f58cb35cea 100644
--- a/lib/stdlib/src/erl_lint.erl
+++ b/lib/stdlib/src/erl_lint.erl
@@ -3238,13 +3238,13 @@ icrt_clauses(Cs, In, Vt, St0) ->
 icrt_clauses(Cs, Vt, St) ->
     mapfoldl(fun (C, St0) -> icrt_clause(C, Vt, St0) end, St, Cs).
 
-icrt_clause({clause,_Line,H,G,B}, Vt0, St0) ->
+icrt_clause({clause,_Line,H,G,B}, Vt0, #lint{catch_scope=Scope}=St0) ->
     {Hvt,Binvt,St1} = head(H, Vt0, St0),
     Vt1 = vtupdate(Hvt, Binvt),
     {Gvt,St2} = guard(G, vtupdate(Vt1, Vt0), St1),
     Vt2 = vtupdate(Gvt, Vt1),
     {Bvt,St3} = exprs(B, vtupdate(Vt2, Vt0), St2),
-    {vtupdate(Bvt, Vt2),St3}.
+    {vtupdate(Bvt, Vt2),St3#lint{catch_scope=Scope}}.
 
 icrt_export(Vts, Vt, {Tag,Attrs}, St) ->
     {_File,Loc} = loc(Attrs, St),
@@ -3910,10 +3910,9 @@ check_format_string(Fmt) ->
     extract_sequences(Fmt, []).
 
 extract_sequences(Fmt, Need0) ->
-    case string:chr(Fmt, $~) of
-        0 -> {ok,lists:reverse(Need0)};         %That's it
-        Pos ->
-            Fmt1 = string:substr(Fmt, Pos+1),   %Skip ~
+    case string:find(Fmt, [$~]) of
+        nomatch -> {ok,lists:reverse(Need0)};         %That's it
+        [$~|Fmt1] ->
             case extract_sequence(1, Fmt1, Need0) of
                 {ok,Need1,Rest} -> extract_sequences(Rest, Need1);
                 Error -> Error
diff --git a/lib/stdlib/src/erl_pp.erl b/lib/stdlib/src/erl_pp.erl
index ee5e7a11bf..367dbefb82 100644
--- a/lib/stdlib/src/erl_pp.erl
+++ b/lib/stdlib/src/erl_pp.erl
@@ -237,13 +237,20 @@ lform({attribute,Line,Name,Arg}, Opts) ->
 lform({function,Line,Name,Arity,Clauses}, Opts) ->
     lfunction({function,Line,Name,Arity,Clauses}, Opts);
 %% These are specials to make it easier for the compiler.
-lform({error,E}, _Opts) ->
-    leaf(format("~p\n", [{error,E}]));
-lform({warning,W}, _Opts) ->
-    leaf(format("~p\n", [{warning,W}]));
+lform({error,_}=E, Opts) ->
+    message(E, Opts);
+lform({warning,_}=W, Opts) ->
+    message(W, Opts);
 lform({eof,_Line}, _Opts) ->
     $\n.
 
+message(M, #options{encoding = Encoding}) ->
+    F = case Encoding of
+            latin1 -> "~p\n";
+            unicode -> "~tp\n"
+        end,
+    leaf(format(F, [M])).
+
 lattribute({attribute,_Line,type,Type}, Opts) ->
     [typeattr(type, Type, Opts),leaf(".\n")];
 lattribute({attribute,_Line,opaque,Type}, Opts) ->
@@ -598,8 +605,6 @@ lexpr({'fun',_,{clauses,Cs},Extra}, _Prec, Opts) ->
 lexpr({named_fun,_,Name,Cs,Extra}, _Prec, Opts) ->
     {force_nl,fun_info(Extra),
      {list,[{first,['fun', " "],fun_clauses(Cs, Opts, {named, Name})},'end']}};
-lexpr({'query',_,Lc}, _Prec, Opts) ->
-    {list,[{step,leaf("query"),lexpr(Lc, 0, Opts)},'end']};
 lexpr({call,_,{remote,_,{atom,_,M},{atom,_,F}=N}=Name,Args}, Prec, Opts) ->
     case erl_internal:bif(M, F, length(Args)) of
         true ->
@@ -904,7 +909,7 @@ maybe_paren(_P, _Prec, Expr) ->
     Expr.
 
 leaf(S) ->
-    {leaf,chars_size(S),S}.
+    {leaf,string:length(S),S}.
 
 %%% Do the formatting. Currently nothing fancy. Could probably have
 %%% done it in one single pass.
@@ -964,7 +969,7 @@ f({seq,Before,After,Sep,LItems}, I0, ST, WT, PP) ->
     Sizes = BSizeL ++ SizeL,
     NSepChars = if
                     is_list(Sep), Sep =/= [] ->
-                        erlang:max(0, length(CharsL)-1);
+                        erlang:max(0, length(CharsL)-1); % not string:length
                     true ->
                         0
                 end,
@@ -1120,7 +1125,7 @@ incr(I, Incr) ->
     I+Incr.
 
 indentation(E, I) when I < 0 ->
-    chars_size(E);
+    string:length(E);
 indentation(E, I0) ->
     I = io_lib_format:indentation(E, I0),
     case has_nl(E) of
@@ -1157,19 +1162,19 @@ write_a_string(S, I, PP) ->
 write_a_string([], _N, _Len, _PP) ->
     [];
 write_a_string(S, N, Len, PP) ->
-    SS = string:sub_string(S, 1, N),
+    SS = string:slice(S, 0, N),
     Sl = write_string(SS, PP),
-    case (chars_size(Sl) > Len) and (N > ?MIN_SUBSTRING) of
+    case (string:length(Sl) > Len) and (N > ?MIN_SUBSTRING) of
         true ->
             write_a_string(S, N-1, Len, PP);
         false ->
             [flat_leaf(Sl) |
-             write_a_string(lists:nthtail(length(SS), S), Len, Len, PP)]
+             write_a_string(string:slice(S, string:length(SS)), Len, Len, PP)]
     end.
 
 flat_leaf(S) ->
     L = lists:flatten(S),
-    {leaf,length(L),L}.
+    {leaf,string:length(L),L}.
 
 write_value(V, PP) ->
     (PP#pp.value_fun)(V).
@@ -1190,15 +1195,6 @@ write_char(C, PP) ->
 a0() ->
     erl_anno:new(0).
 
-chars_size([C | Es]) when is_integer(C) ->
-    1 + chars_size(Es);
-chars_size([E | Es]) ->
-    chars_size(E) + chars_size(Es);
-chars_size([]) ->
-    0;
-chars_size(B) when is_binary(B) ->
-    byte_size(B).
-
 -define(N_SPACES, 30).
 
 spacetab() ->
diff --git a/lib/stdlib/src/erl_scan.erl b/lib/stdlib/src/erl_scan.erl
index 47223b129c..4774c4bf19 100644
--- a/lib/stdlib/src/erl_scan.erl
+++ b/lib/stdlib/src/erl_scan.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -752,7 +752,7 @@ scan_string(Cs, St, Line, Col, Toks, {Wcs,Str,Line0,Col0}) ->
         {char_error,Ncs,Error,Nline,Ncol,EndCol} ->
             scan_error(Error, Nline, Ncol, Nline, EndCol, Ncs);
         {error,Nline,Ncol,Nwcs,Ncs} ->
-            Estr = string:substr(Nwcs, 1, 16), % Expanded escape chars.
+            Estr = string:slice(Nwcs, 0, 16), % Expanded escape chars.
             scan_error({string,$\",Estr}, Line0, Col0, Nline, Ncol, Ncs); %"
         {Ncs,Nline,Ncol,Nstr,Nwcs} ->
             Anno = anno(Line0, Col0, St, Nstr),
@@ -767,7 +767,7 @@ scan_qatom(Cs, St, Line, Col, Toks, {Wcs,Str,Line0,Col0}) ->
         {char_error,Ncs,Error,Nline,Ncol,EndCol} ->
             scan_error(Error, Nline, Ncol, Nline, EndCol, Ncs);
         {error,Nline,Ncol,Nwcs,Ncs} ->
-            Estr = string:substr(Nwcs, 1, 16), % Expanded escape chars.
+            Estr = string:slice(Nwcs, 0, 16), % Expanded escape chars.
             scan_error({string,$\',Estr}, Line0, Col0, Nline, Ncol, Ncs); %'
         {Ncs,Nline,Ncol,Nstr,Nwcs} ->
             case catch list_to_atom(Nwcs) of
diff --git a/lib/stdlib/src/error_logger_file_h.erl b/lib/stdlib/src/error_logger_file_h.erl
index b7c193f965..58da0cbdd6 100644
--- a/lib/stdlib/src/error_logger_file_h.erl
+++ b/lib/stdlib/src/error_logger_file_h.erl
@@ -126,7 +126,7 @@ format_body(State, [{Format,Args}|T]) ->
 		S0
 	catch
 	    _:_ ->
-		format(State, "ERROR: ~p - ~p\n", [Format,Args])
+		format(State, "ERROR: ~tp - ~tp\n", [Format,Args])
 	end,
     [S|format_body(State, T)];
 format_body(_State, []) ->
@@ -165,44 +165,26 @@ parse_event({warning_report, _GL, {Pid, std_warning, Args}}) ->
 parse_event(_) -> ignore.
 
 format_term(Term) when is_list(Term) ->
-    case string_p(Term) of
+    case string_p(lists:flatten(Term)) of
 	true ->
-	    [{"~s\n",[Term]}];
+	    [{"~ts\n",[Term]}];
 	false ->
 	    format_term_list(Term)
     end;
 format_term(Term) ->
-    [{"~p\n",[Term]}].
+    [{"~tp\n",[Term]}].
 
 format_term_list([{Tag,Data}|T]) ->
-    [{"    ~p: ~p\n",[Tag,Data]}|format_term_list(T)];
+    [{"    ~tp: ~tp\n",[Tag,Data]}|format_term_list(T)];
 format_term_list([Data|T]) ->
-    [{"    ~p\n",[Data]}|format_term_list(T)];
+    [{"    ~tp\n",[Data]}|format_term_list(T)];
 format_term_list([]) ->
-    [];
-format_term_list(_) ->
-    %% Continue to allow non-proper lists for now.
-    %% FIXME: Remove this clause in OTP 19.
     [].
 
 string_p([]) ->
     false;
-string_p(Term) ->
-    string_p1(Term).
-
-string_p1([H|T]) when is_integer(H), H >= $\s, H < 255 ->
-    string_p1(T);
-string_p1([$\n|T]) -> string_p1(T);
-string_p1([$\r|T]) -> string_p1(T);
-string_p1([$\t|T]) -> string_p1(T);
-string_p1([$\v|T]) -> string_p1(T);
-string_p1([$\b|T]) -> string_p1(T);
-string_p1([$\f|T]) -> string_p1(T);
-string_p1([$\e|T]) -> string_p1(T);
-string_p1([H|T]) when is_list(H) ->
-    string_p1(H) andalso string_p1(T);
-string_p1([]) -> true;
-string_p1(_) ->  false.
+string_p(FlatList) ->
+    io_lib:printable_list(FlatList).
 
 get_utc_config() ->
     %% SASL utc_log configuration overrides stdlib config
@@ -225,7 +207,7 @@ header(Time, Title) ->
     end.
 
 header({{Y,Mo,D},{H,Mi,S}}, Title, UTC) ->
-    io_lib:format("~n=~s==== ~p-~s-~p::~s:~s:~s ~s===~n",
+    io_lib:format("~n=~ts==== ~p-~s-~p::~s:~s:~s ~s===~n",
                   [Title,D,month(Mo),Y,t(H),t(Mi),t(S),UTC]).
 
 t(X) when is_integer(X) ->
diff --git a/lib/stdlib/src/error_logger_tty_h.erl b/lib/stdlib/src/error_logger_tty_h.erl
index 8f0d7b0362..fa940b7264 100644
--- a/lib/stdlib/src/error_logger_tty_h.erl
+++ b/lib/stdlib/src/error_logger_tty_h.erl
@@ -39,13 +39,16 @@
 	{user,
 	 prev_handler,
 	 io_mod=io,
-	 depth=unlimited}).
+	 depth=unlimited,
+         modifier=""}).
 
 %% This one is used when we takeover from the simple error_logger.
 init({[], {error_logger, Buf}}) ->
     User = set_group_leader(),
     Depth = error_logger:get_format_depth(),
-    State = #st{user=User,prev_handler=error_logger,depth=Depth},
+    Modifier = modifier(),
+    State = #st{user=User,prev_handler=error_logger,
+                depth=Depth,modifier=Modifier},
     write_events(State, Buf),
     {ok, State};
 %% This one is used if someone took over from us, and now wants to
@@ -57,7 +60,8 @@ init({[], {error_logger_tty_h, PrevHandler}}) ->
 init([]) ->
     User = set_group_leader(),
     Depth = error_logger:get_format_depth(),
-    {ok, #st{user=User,prev_handler=[],depth=Depth}}.
+    Modifier = modifier(),
+    {ok, #st{user=User,prev_handler=[],depth=Depth,modifier=Modifier}}.
 
 handle_event({_Type, GL, _Msg}, State) when node(GL) =/= node() ->
     {ok, State};
@@ -91,8 +95,9 @@ code_change(_OldVsn, State, _Extra) ->
 write_event(Event, IoMod) ->
     do_write_event(#st{io_mod=IoMod}, Event).
 
-write_event(Event, IoMod, Depth) ->
-    do_write_event(#st{io_mod=IoMod,depth=Depth}, Event).
+write_event(Event, IoMod, {Depth, Enc}) ->
+    Modifier = modifier(Enc),
+    do_write_event(#st{io_mod=IoMod,depth=Depth,modifier=Modifier}, Event).
 
 
 %%% ------------------------------------------------------
@@ -120,12 +125,12 @@ write_events(State, [Ev|Es]) ->
 write_events(_State, []) ->
     ok.
 
-do_write_event(State, {Time, Event}) ->
-    case parse_event(Event) of
+do_write_event(#st{modifier=M}=State, {Time, Event}) ->
+    case parse_event(Event,M) of
 	ignore ->
 	    ok;
 	{Title,Pid,FormatList} ->
-	    Header = header(Time, Title),
+	    Header = header(Time, Title, M),
 	    Body = format_body(State, FormatList),
 	    AtNode = if
 			 node(Pid) =/= node() ->
@@ -144,13 +149,13 @@ do_write_event(State, {Time, Event}) ->
 do_write_event(_, _) ->
     ok.
 
-format_body(State, [{Format,Args}|T]) ->
+format_body(#st{modifier=M}=State, [{Format,Args}|T]) ->
     S = try format(State, Format, Args) of
 	    S0 ->
 		S0
 	catch
 	    _:_ ->
-		format(State, "ERROR: ~p - ~p\n", [Format,Args])
+		format(State, "ERROR: ~"++M++"p - ~"++M++"p\n", [Format,Args])
 	end,
     [S|format_body(State, T)];
 format_body(_State, []) ->
@@ -174,62 +179,41 @@ limit_format([H|T], Depth) ->
 limit_format([], _) ->
     [].
 
-parse_event({error, _GL, {Pid, Format, Args}}) ->
+parse_event({error, _GL, {Pid, Format, Args}},_) ->
     {"ERROR REPORT",Pid,[{Format,Args}]};
-parse_event({info_msg, _GL, {Pid, Format, Args}}) ->
+parse_event({info_msg, _GL, {Pid, Format, Args}},_) ->
     {"INFO REPORT",Pid,[{Format, Args}]};
-parse_event({warning_msg, _GL, {Pid, Format, Args}}) ->
+parse_event({warning_msg, _GL, {Pid, Format, Args}},_) ->
     {"WARNING REPORT",Pid,[{Format,Args}]};
-parse_event({error_report, _GL, {Pid, std_error, Args}}) ->
-    {"ERROR REPORT",Pid,format_term(Args)};
-parse_event({info_report, _GL, {Pid, std_info, Args}}) ->
-    {"INFO REPORT",Pid,format_term(Args)};
-parse_event({warning_report, _GL, {Pid, std_warning, Args}}) ->
-    {"WARNING REPORT",Pid,format_term(Args)};
-parse_event(_) -> ignore.
-
-format_term(Term) when is_list(Term) ->
-    case string_p(Term) of
+parse_event({error_report, _GL, {Pid, std_error, Args}},M) ->
+    {"ERROR REPORT",Pid,format_term(Args,M)};
+parse_event({info_report, _GL, {Pid, std_info, Args}},M) ->
+    {"INFO REPORT",Pid,format_term(Args,M)};
+parse_event({warning_report, _GL, {Pid, std_warning, Args}},M) ->
+    {"WARNING REPORT",Pid,format_term(Args,M)};
+parse_event(_,_) -> ignore.
+
+format_term(Term,M) when is_list(Term) ->
+    case string_p(lists:flatten(Term)) of
 	true ->
-	    [{"~s\n",[Term]}];
+	    [{"~"++M++"s\n",[Term]}];
 	false ->
-	    format_term_list(Term)
+	    format_term_list(Term,M)
     end;
-format_term(Term) ->
-    [{"~p\n",[Term]}].
-
-format_term_list([{Tag,Data}|T]) ->
-    [{"    ~p: ~p\n",[Tag,Data]}|format_term_list(T)];
-format_term_list([Data|T]) ->
-    [{"    ~p\n",[Data]}|format_term_list(T)];
-format_term_list([]) ->
-    [];
-format_term_list(_) ->
-    %% Continue to allow non-proper lists for now.
-    %% FIXME: Remove this clause in OTP 19.
+format_term(Term,M) ->
+    [{"~"++M++"p\n",[Term]}].
+
+format_term_list([{Tag,Data}|T],M) ->
+    [{"    ~"++M++"p: ~"++M++"p\n",[Tag,Data]}|format_term_list(T,M)];
+format_term_list([Data|T],M) ->
+    [{"    ~"++M++"p\n",[Data]}|format_term_list(T,M)];
+format_term_list([],_) ->
     [].
 
 string_p([]) ->
     false;
-string_p(Term) ->
-    string_p1(Term).
-
-string_p1([H|T]) when is_integer(H), H >= $\s, H < 255 ->
-    string_p1(T);
-string_p1([$\n|T]) -> string_p1(T);
-string_p1([$\r|T]) -> string_p1(T);
-string_p1([$\t|T]) -> string_p1(T);
-string_p1([$\v|T]) -> string_p1(T);
-string_p1([$\b|T]) -> string_p1(T);
-string_p1([$\f|T]) -> string_p1(T);
-string_p1([$\e|T]) -> string_p1(T);
-string_p1([H|T]) when is_list(H) ->
-    case string_p1(H) of
-	true -> string_p1(T);
-	_    -> false
-    end;
-string_p1([]) -> true;
-string_p1(_) ->  false.
+string_p(FlatList) ->
+    io_lib:printable_list(FlatList).
 
 get_utc_config() ->
     %% SASL utc_log configuration overrides stdlib config
@@ -243,16 +227,16 @@ get_utc_config() ->
             end
     end.
 
-header(Time, Title) ->
+header(Time, Title, M) ->
     case get_utc_config() of
         true ->
-            header(Time, Title, "UTC ");
+            header(Time, Title, "UTC ", M);
         _ ->
-            header(calendar:universal_time_to_local_time(Time), Title, "")
+            header(calendar:universal_time_to_local_time(Time), Title, "", M)
     end.
 
-header({{Y,Mo,D},{H,Mi,S}}, Title, UTC) ->
-    io_lib:format("~n=~s==== ~p-~s-~p::~s:~s:~s ~s===~n",
+header({{Y,Mo,D},{H,Mi,S}}, Title, UTC, M) ->
+    io_lib:format("~n=~"++M++"s==== ~p-~s-~p::~s:~s:~s ~s===~n",
                  [Title,D,month(Mo),Y,t(H),t(Mi),t(S),UTC]).
 
 t(X) when is_integer(X) ->
@@ -274,3 +258,13 @@ month(9) -> "Sep";
 month(10) -> "Oct";
 month(11) -> "Nov";
 month(12) -> "Dec".
+
+modifier() ->
+    modifier(encoding()).
+modifier(latin1) ->
+    "";
+modifier(_) ->
+    "t".
+
+encoding() ->
+    proplists:get_value(encoding,io:getopts(),latin1).
diff --git a/lib/stdlib/src/escript.erl b/lib/stdlib/src/escript.erl
index 2093916a7c..132f8efbbe 100644
--- a/lib/stdlib/src/escript.erl
+++ b/lib/stdlib/src/escript.erl
@@ -224,8 +224,8 @@ return_sections(S, Bin) ->
 normalize_section(Name, undefined) ->
     {Name, undefined};
 normalize_section(shebang, "#!" ++ Chars) ->
-    Chopped = string:strip(Chars, right, $\n),
-    Stripped = string:strip(Chopped, both),
+    Chopped = string:trim(Chars, trailing, "$\n"),
+    Stripped = string:trim(Chopped, both),
     if
 	Stripped =:= ?SHEBANG ->
 	    {shebang, default};
@@ -233,8 +233,8 @@ normalize_section(shebang, "#!" ++ Chars) ->
 	    {shebang, Stripped}
     end;
 normalize_section(comment, Chars) ->
-    Chopped = string:strip(Chars, right, $\n),
-    Stripped = string:strip(string:strip(Chopped, left, $%), both),
+    Chopped = string:trim(Chars, trailing, "$\n"),
+    Stripped = string:trim(string:trim(Chopped, leading, "$%"), both),
     if
 	Stripped =:= ?COMMENT ->
 	    {comment, default};
@@ -242,8 +242,8 @@ normalize_section(comment, Chars) ->
 	    {comment, Stripped}
     end;
 normalize_section(emu_args, "%%!" ++ Chars) ->
-    Chopped = string:strip(Chars, right, $\n),
-    Stripped = string:strip(Chopped, both),
+    Chopped = string:trim(Chars, trailing, "$\n"),
+    Stripped = string:trim(Chopped, both),
     {emu_args, Stripped};
 normalize_section(Name, Chars) ->
     {Name, Chars}.
@@ -860,7 +860,7 @@ code_handler(Name, Args, Dict, File) ->
                     %% io:format("Calling:~p~n",[{Mod,Name,Args}]),
                     apply(Mod, Name, Args);
                 error ->
-                    io:format("Script does not export ~w/~w\n", [Name,Arity]),
+                    io:format("Script does not export ~tw/~w\n", [Name,Arity]),
                     my_halt(127)
             end
     end.
diff --git a/lib/stdlib/src/ets.erl b/lib/stdlib/src/ets.erl
index 898b2f5bba..b6548626f3 100644
--- a/lib/stdlib/src/ets.erl
+++ b/lib/stdlib/src/ets.erl
@@ -1693,13 +1693,15 @@ choice(Height, Width, P, Mode, Tab, Key, Turn, Opos) ->
 		  end,
 	    choice(Height, Width, P, Mode, Tab, Key, Turn, Opos);
 	[$/|Regexp]   -> %% from regexp
-	    case re:compile(nonl(Regexp)) of
+	    case re:compile(nonl(Regexp),[unicode]) of
 		{ok,Re} ->
 		    re_search(Height, Width, Tab, ets:first(Tab), Re, 1, 1);
 		{error,{ErrorString,_Pos}} ->
 		    io:format("~ts\n", [ErrorString]),
 		    choice(Height, Width, P, Mode, Tab, Key, Turn, Opos)
 	    end;
+        eof ->
+            ok;
 	_  ->
 	    choice(Height, Width, P, Mode, Tab, Key, Turn, Opos)
     end.
@@ -1717,7 +1719,7 @@ get_line(P, Default) ->
 line_string(Binary) when is_binary(Binary) -> unicode:characters_to_list(Binary);
 line_string(Other) -> Other.
 
-nonl(S) -> string:strip(S, right, $\n).
+nonl(S) -> string:trim(S, trailing, "$\n").
 
 print_number(Tab, Key, Num) ->
     Os = ets:lookup(Tab, Key),
@@ -1746,7 +1748,7 @@ do_display_item(_Height, Width, I, Opos)  ->
     L = to_string(I),
     L2 = if
 	     length(L) > Width - 8 ->
-                 string:substr(L, 1, Width-13) ++ "  ...";
+                 string:slice(L, 0, Width-13) ++ "  ...";
 	     true ->
 		 L
 	 end,
diff --git a/lib/stdlib/src/filelib.erl b/lib/stdlib/src/filelib.erl
index d7c313f214..0f90b3fc33 100644
--- a/lib/stdlib/src/filelib.erl
+++ b/lib/stdlib/src/filelib.erl
@@ -365,11 +365,18 @@ do_list_dir(Dir, Mod) ->     eval_list_dir(Dir, Mod).
 	    
 %%% Compiling a wildcard.
 
+
+%% Define characters used for escaping a \.
+-define(ESCAPE_PREFIX, $@).
+-define(ESCAPE_CHARACTER, [?ESCAPE_PREFIX,$e]).
+-define(ESCAPED_ESCAPE_PREFIX, [?ESCAPE_PREFIX,?ESCAPE_PREFIX]).
+
 %% Only for debugging.
 compile_wildcard(Pattern) when is_list(Pattern) ->
     {compiled_wildcard,?HANDLE_ERROR(compile_wildcard(Pattern, "."))}.
 
-compile_wildcard(Pattern, Cwd0) ->
+compile_wildcard(Pattern0, Cwd0) ->
+    Pattern = convert_escapes(Pattern0),
     [Root|Rest] = filename:split(Pattern),
     case filename:pathtype(Root) of
 	relative ->
@@ -409,7 +416,8 @@ compile_join({cwd,Cwd}, File0) ->
 compile_join({root,PrefixLen,Root}, File) ->
     {root,PrefixLen,filename:join(Root, File)}.
 
-compile_part(Part) ->
+compile_part(Part0) ->
+    Part = wrap_escapes(Part0),
     compile_part(Part, false, []).
 
 compile_part_to_sep(Part) ->
@@ -445,6 +453,8 @@ compile_part([${|Rest], Upto, Result) ->
 	error ->
 	    compile_part(Rest, Upto, [${|Result])
     end;
+compile_part([{escaped,X}|Rest], Upto, Result) ->
+    compile_part(Rest, Upto, [X|Result]);
 compile_part([X|Rest], Upto, Result) ->
     compile_part(Rest, Upto, [X|Result]);
 compile_part([], _Upto, Result) ->
@@ -461,6 +471,8 @@ compile_charset1([Lower, $-, Upper|Rest], Ordset) when Lower =< Upper ->
     compile_charset1(Rest, compile_range(Lower, Upper, Ordset));
 compile_charset1([$]|Rest], Ordset) ->
     {ok, {one_of, gb_sets:from_ordset(Ordset)}, Rest};
+compile_charset1([{escaped,X}|Rest], Ordset) ->
+    compile_charset1(Rest, ordsets:add_element(X, Ordset));
 compile_charset1([X|Rest], Ordset) ->
     compile_charset1(Rest, ordsets:add_element(X, Ordset));
 compile_charset1([], _Ordset) ->
@@ -486,6 +498,32 @@ compile_alt(Pattern, Result) ->
 	    error
     end.
 
+%% Convert backslashes to an illegal Unicode character to
+%% protect in from filename:split/1.
+
+convert_escapes([?ESCAPE_PREFIX|T]) ->
+    ?ESCAPED_ESCAPE_PREFIX ++ convert_escapes(T);
+convert_escapes([$\\|T]) ->
+    ?ESCAPE_CHARACTER ++ convert_escapes(T);
+convert_escapes([H|T]) ->
+    [H|convert_escapes(T)];
+convert_escapes([]) ->
+    [].
+
+%% Wrap each escape in a tuple to remove the special meaning for
+%% the character that follows.
+
+wrap_escapes(?ESCAPED_ESCAPE_PREFIX ++ T) ->
+    [?ESCAPE_PREFIX|wrap_escapes(T)];
+wrap_escapes(?ESCAPE_CHARACTER ++ [C|T]) ->
+    [{escaped,C}|wrap_escapes(T)];
+wrap_escapes(?ESCAPE_CHARACTER) ->
+    [];
+wrap_escapes([H|T]) ->
+    [H|wrap_escapes(T)];
+wrap_escapes([]) ->
+    [].
+
 badpattern(Reason) ->
     error({badpattern,Reason}).
 
diff --git a/lib/stdlib/src/filename.erl b/lib/stdlib/src/filename.erl
index 9bf4290916..a322bd002d 100644
--- a/lib/stdlib/src/filename.erl
+++ b/lib/stdlib/src/filename.erl
@@ -34,6 +34,38 @@
 %% we flatten the arguments immediately on function entry as that makes
 %% it easier to ensure that the code works.
 
+%%
+%% *** Requirements on Raw Filename Format ***
+%%
+%% These requirements are due to the 'filename' module
+%% in stdlib. This since it is documented that it
+%% should be able to operate on raw filenames as well
+%% as ordinary filenames.
+%%
+%% A raw filename *must* be a byte sequence where:
+%% 1. Codepoints 0-127 (7-bit ascii) *must* be encoded
+%%    as a byte with the corresponding value. That is,
+%%    the most significant bit in the byte encoding the
+%%    codepoint is never set.
+%% 2. Codepoints greater than 127 *must* be encoded
+%%    with the most significant bit set in *every* byte
+%%    encoding it.
+%%
+%% Latin1 and UTF-8 meet these requirements while
+%% UTF-16 and UTF-32 don't.
+%%
+%% On Windows filenames are natively stored as malformed
+%% UTF-16LE (lonely surrogates may appear). A more correct
+%% description than UTF-16 would be an array of 16-bit
+%% words... In order to meet the requirements of the
+%% raw file format we convert the malformed UTF-16LE to
+%% malformed UTF-8 which meet the requirements.
+%%
+%% Note that these requirements are today only OTP
+%% internal (erts-stdlib internal) requirements that
+%% could be changed.
+%%
+
 -export([absname/1, absname/2, absname_join/2, 
 	 basename/1, basename/2, dirname/1,
 	 extension/1, join/1, join/2, pathtype/1,
@@ -41,6 +73,7 @@
          safe_relative_path/1]).
 -export([find_src/1, find_src/2]). % deprecated
 -export([basedir/2, basedir/3]).
+-export([validate/1]).
 
 %% Undocumented and unsupported exports.
 -export([append/2]).
@@ -439,6 +472,10 @@ join(Name1, Name2) when is_atom(Name2) ->
 join1([UcLetter, $:|Rest], RelativeName, [], win32)
 when is_integer(UcLetter), UcLetter >= $A, UcLetter =< $Z ->
     join1(Rest, RelativeName, [$:, UcLetter+$a-$A], win32);
+join1([$\\,$\\|Rest], RelativeName, [], win32) ->
+    join1([$/,$/|Rest], RelativeName, [], win32);
+join1([$/,$/|Rest], RelativeName, [], win32) ->
+    join1(Rest, RelativeName, [$/,$/], win32);
 join1([$\\|Rest], RelativeName, Result, win32) ->
     join1([$/|Rest], RelativeName, Result, win32);
 join1([$/|Rest], RelativeName, [$., $/|Result], OsType) ->
@@ -467,6 +504,10 @@ join1([Atom|Rest], RelativeName, Result, OsType) when is_atom(Atom) ->
 join1b(<<UcLetter, $:, Rest/binary>>, RelativeName, [], win32)
 when is_integer(UcLetter), UcLetter >= $A, UcLetter =< $Z ->
     join1b(Rest, RelativeName, [$:, UcLetter+$a-$A], win32);
+join1b(<<$\\,$\\,Rest/binary>>, RelativeName, [], win32) ->
+    join1b(<<$/,$/,Rest/binary>>, RelativeName, [], win32);
+join1b(<<$/,$/,Rest/binary>>, RelativeName, [], win32) ->
+    join1b(Rest, RelativeName, [$/,$/], win32);
 join1b(<<$\\,Rest/binary>>, RelativeName, Result, win32) ->
     join1b(<<$/,Rest/binary>>, RelativeName, Result, win32);
 join1b(<<$/,Rest/binary>>, RelativeName, [$., $/|Result], OsType) ->
@@ -477,6 +518,8 @@ join1b(<<>>, <<>>, Result, OsType) ->
     list_to_binary(maybe_remove_dirsep(Result, OsType));
 join1b(<<>>, RelativeName, [$:|Rest], win32) ->
     join1b(RelativeName, <<>>, [$:|Rest], win32);
+join1b(<<>>, RelativeName, [$/,$/|Result], win32) ->
+    join1b(RelativeName, <<>>, [$/,$/|Result], win32);
 join1b(<<>>, RelativeName, [$/|Result], OsType) ->
     join1b(RelativeName, <<>>, [$/|Result], OsType);
 join1b(<<>>, RelativeName, [$., $/|Result], OsType) ->
@@ -490,6 +533,8 @@ maybe_remove_dirsep([$/, $:, Letter], win32) ->
     [Letter, $:, $/];
 maybe_remove_dirsep([$/], _) ->
     [$/];
+maybe_remove_dirsep([$/,$/], win32) ->
+    [$/,$/];
 maybe_remove_dirsep([$/|Name], _) ->
     lists:reverse(Name);
 maybe_remove_dirsep(Name, _) ->
@@ -679,6 +724,9 @@ win32_splitb(<<Letter0,$:,Rest/binary>>) when ?IS_DRIVELETTER(Letter0) ->
     Letter = fix_driveletter(Letter0),
     L = binary:split(Rest,[<<"/">>,<<"\\">>],[global]),
     [<<Letter,$:>> | [ X || X <- L, X =/= <<>> ]];
+win32_splitb(<<Slash,Slash,Rest/binary>>) when ((Slash =:= $\\) orelse (Slash =:= $/)) ->
+    L = binary:split(Rest,[<<"/">>,<<"\\">>],[global]),
+    [<<"//">> | [ X || X <- L, X =/= <<>> ]];
 win32_splitb(<<Slash,Rest/binary>>) when ((Slash =:= $\\) orelse (Slash =:= $/)) ->
     L = binary:split(Rest,[<<"/">>,<<"\\">>],[global]),
     [<<$/>> | [ X || X <- L, X =/= <<>> ]];
@@ -690,6 +738,8 @@ win32_splitb(Name) ->
 unix_split(Name) ->
     split(Name, [], unix).
 
+win32_split([Slash,Slash|Rest]) when ((Slash =:= $\\) orelse (Slash =:= $/)) ->
+    split(Rest, [[$/,$/]], win32);
 win32_split([$\\|Rest]) ->
     win32_split([$/|Rest]);
 win32_split([X, $\\|Rest]) when is_integer(X) ->
@@ -1036,10 +1086,10 @@ basedir_linux(Type) ->
         user_log    -> getenv("XDG_CACHE_HOME", ?basedir_linux_user_log,   true);
         site_data   ->
             Base = getenv("XDG_DATA_DIRS",?basedir_linux_site_data,false),
-            string:tokens(Base,":");
+            string:lexemes(Base, ":");
         site_config ->
             Base = getenv("XDG_CONFIG_DIRS",?basedir_linux_site_config,false),
-            string:tokens(Base,":")
+            string:lexemes(Base, ":")
     end.
 
 -define(basedir_darwin_user_data,   "Library/Application Support").
@@ -1135,3 +1185,72 @@ basedir_os_type() ->
         {win32,_}     -> windows;
         _             -> linux
     end.
+
+%%
+%% validate/1
+%%
+
+-spec validate(FileName) -> boolean() when
+      FileName :: file:name_all().
+
+validate(FileName) when is_binary(FileName) ->
+    %% Raw filename...
+    validate_bin(FileName);
+validate(FileName) when is_list(FileName);
+                        is_atom(FileName) ->
+    validate_list(FileName,
+                  file:native_name_encoding(),
+                  os:type()).
+
+validate_list(FileName, Enc, Os) ->
+    try
+        true = validate_list(FileName, Enc, Os, 0) > 0
+    catch
+        _ : _ -> false
+    end.
+
+validate_list([], _Enc, _Os, Chars) ->
+    Chars;
+validate_list(C, Enc, Os, Chars) when is_integer(C) ->
+    validate_char(C, Enc, Os),
+    Chars+1;
+validate_list(A, Enc, Os, Chars) when is_atom(A) ->
+    validate_list(atom_to_list(A), Enc, Os, Chars);
+validate_list([H|T], Enc, Os, Chars) ->
+    NewChars = validate_list(H, Enc, Os, Chars),
+    validate_list(T, Enc, Os, NewChars).
+
+%% C is always an integer...
+% validate_char(C, _, _) when not is_integer(C) ->
+%     throw(invalid);
+validate_char(C, _, _) when C < 1 ->
+    throw(invalid); %% No negative or null characters...
+validate_char(C, latin1, _) when C > 255 ->
+    throw(invalid);
+validate_char(C, utf8, _) when C >= 16#110000 ->
+    throw(invalid);
+validate_char(C, utf8, {win32, _}) when C > 16#ffff ->
+    throw(invalid); %% invalid win wchar...
+validate_char(_C, utf8, {win32, _}) ->
+    ok; %% Range below is accepted on windows...
+validate_char(C, utf8, _) when 16#D800 =< C, C =< 16#DFFF ->
+    throw(invalid); %% invalid unicode range...
+validate_char(_, _, _) ->
+    ok.
+
+validate_bin(Bin) ->
+    %% Raw filename. That is, we do not interpret
+    %% the encoding, but we still do not accept
+    %% null characters...
+    try
+        true = validate_bin(Bin, 0) > 0
+    catch
+        _ : _ -> false
+    end.
+
+validate_bin(<<>>, Bs) ->
+    Bs;
+validate_bin(<<0, _Rest/binary>>, _Bs) ->
+    throw(invalid); %% No null characters allowed...
+validate_bin(<<_B, Rest/binary>>, Bs) ->
+    validate_bin(Rest, Bs+1).
diff --git a/lib/stdlib/src/gen.erl b/lib/stdlib/src/gen.erl
index 32f43fc706..33af0aed8f 100644
--- a/lib/stdlib/src/gen.erl
+++ b/lib/stdlib/src/gen.erl
@@ -422,7 +422,7 @@ debug_options(Name, Opts) ->
 	    try sys:debug_options(Options)
 	    catch _:_ ->
 		    error_logger:format(
-		      "~p: ignoring erroneous debug options - ~p~n",
+		      "~tp: ignoring erroneous debug options - ~tp~n",
 		      [Name,Options]),
 		    []
 	    end;
diff --git a/lib/stdlib/src/gen_event.erl b/lib/stdlib/src/gen_event.erl
index da2b0da3ca..a9b98911e2 100644
--- a/lib/stdlib/src/gen_event.erl
+++ b/lib/stdlib/src/gen_event.erl
@@ -441,15 +441,15 @@ system_replace_state(StateFun, [ServerName, MSL, HibernateAfterTimeout, Hib]) ->
 print_event(Dev, {in, Msg}, Name) ->
     case Msg of
 	{notify, Event} ->
-	    io:format(Dev, "*DBG* ~p got event ~p~n", [Name, Event]);
+	    io:format(Dev, "*DBG* ~tp got event ~tp~n", [Name, Event]);
 	{_,_,{call, Handler, Query}} ->
-	    io:format(Dev, "*DBG* ~p(~p) got call ~p~n",
+	    io:format(Dev, "*DBG* ~tp(~tp) got call ~tp~n",
 		      [Name, Handler, Query]);
 	_ ->
-	    io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg])
+	    io:format(Dev, "*DBG* ~tp got ~tp~n", [Name, Msg])
     end;
 print_event(Dev, Dbg, Name) ->
-    io:format(Dev, "*DBG* ~p : ~p~n", [Name, Dbg]).
+    io:format(Dev, "*DBG* ~tp : ~tp~n", [Name, Dbg]).
 
 
 %% server_add_handler(Handler, Args, MSL) -> {Ret, MSL'}.
@@ -582,8 +582,8 @@ server_update(Handler1, Func, Event, SName) ->
 			 remove, SName, normal),
 	    no;
         {'EXIT', {undef, [{Mod1, handle_info, [_,_], _}|_]}} ->
-            error_logger:warning_msg("** Undefined handle_info in ~p~n"
-                                     "** Unhandled message: ~p~n", [Mod1, Event]),
+            error_logger:warning_msg("** Undefined handle_info in ~tp~n"
+                                     "** Unhandled message: ~tp~n", [Mod1, Event]),
            {ok, Handler1};
 	Other ->
 	    do_terminate(Mod1, Handler1, {error, Other}, State,
@@ -767,10 +767,10 @@ report_error(Handler, Reason, State, LastIn, SName) ->
 		       State
 	       end,
     error_msg("** gen_event handler ~p crashed.~n"
-	      "** Was installed in ~p~n"
-	      "** Last event was: ~p~n"
-	      "** When handler state == ~p~n"
-	      "** Reason == ~p~n",
+	      "** Was installed in ~tp~n"
+	      "** Last event was: ~tp~n"
+	      "** When handler state == ~tp~n"
+	      "** Reason == ~tp~n",
 	      [handler(Handler),SName,LastIn,FmtState,Reason1]).
 
 handler(Handler) when not Handler#handler.id ->
diff --git a/lib/stdlib/src/gen_fsm.erl b/lib/stdlib/src/gen_fsm.erl
index 9ef0ca818c..96a53426e2 100644
--- a/lib/stdlib/src/gen_fsm.erl
+++ b/lib/stdlib/src/gen_fsm.erl
@@ -452,30 +452,30 @@ system_replace_state(StateFun, [Name, StateName, StateData, Mod, Time, Hibernate
 print_event(Dev, {in, Msg}, {Name, StateName}) ->
     case Msg of
 	{'$gen_event', Event} ->
-	    io:format(Dev, "*DBG* ~p got event ~p in state ~w~n",
+	    io:format(Dev, "*DBG* ~tp got event ~tp in state ~tw~n",
 		      [Name, Event, StateName]);
 	{'$gen_all_state_event', Event} ->
 	    io:format(Dev,
-		      "*DBG* ~p got all_state_event ~p in state ~w~n",
+		      "*DBG* ~tp got all_state_event ~tp in state ~tw~n",
 		      [Name, Event, StateName]);
 	{timeout, Ref, {'$gen_timer', Message}} ->
 	    io:format(Dev,
-		      "*DBG* ~p got timer ~p in state ~w~n",
+		      "*DBG* ~tp got timer ~tp in state ~tw~n",
 		      [Name, {timeout, Ref, Message}, StateName]);
 	{timeout, _Ref, {'$gen_event', Event}} ->
 	    io:format(Dev,
-		      "*DBG* ~p got timer ~p in state ~w~n",
+		      "*DBG* ~tp got timer ~tp in state ~tw~n",
 		      [Name, Event, StateName]);
 	_ ->
-	    io:format(Dev, "*DBG* ~p got ~p in state ~w~n",
+	    io:format(Dev, "*DBG* ~tp got ~tp in state ~tw~n",
 		      [Name, Msg, StateName])
     end;
 print_event(Dev, {out, Msg, To, StateName}, Name) ->
-    io:format(Dev, "*DBG* ~p sent ~p to ~w~n"
-	           "      and switched to state ~w~n",
+    io:format(Dev, "*DBG* ~tp sent ~tp to ~tw~n"
+	           "      and switched to state ~tw~n",
 	      [Name, Msg, To, StateName]);
 print_event(Dev, return, {Name, StateName}) ->
-    io:format(Dev, "*DBG* ~p switched to state ~w~n",
+    io:format(Dev, "*DBG* ~tp switched to state ~tw~n",
 	      [Name, StateName]).
 
 handle_msg(Msg, Parent, Name, StateName, StateData, Mod, _Time, HibernateAfterTimeout) -> %No debug here
@@ -500,7 +500,7 @@ handle_msg(Msg, Parent, Name, StateName, StateData, Mod, _Time, HibernateAfterTi
 	    exit(R);
         {'EXIT', {undef, [{Mod, handle_info, [_,_,_], _}|_]}} ->
             error_logger:warning_msg("** Undefined handle_info in ~p~n"
-                                     "** Unhandled message: ~p~n", [Mod, Msg]),
+                                     "** Unhandled message: ~tp~n", [Mod, Msg]),
             loop(Parent, Name, StateName, StateData, Mod, infinity, HibernateAfterTimeout, []);
 	{'EXIT', What} ->
 	    terminate(What, Name, Msg, Mod, StateName, StateData, []);
@@ -620,29 +620,29 @@ error_info(Reason, Name, Msg, StateName, StateData, Debug) ->
 	    _ ->
 		Reason
 	end,
-    Str = "** State machine ~p terminating \n" ++
+    Str = "** State machine ~tp terminating \n" ++
 	get_msg_str(Msg) ++
-	"** When State == ~p~n"
-        "**      Data  == ~p~n"
-        "** Reason for termination = ~n** ~p~n",
+	"** When State == ~tp~n"
+        "**      Data  == ~tp~n"
+        "** Reason for termination = ~n** ~tp~n",
     format(Str, [Name, get_msg(Msg), StateName, StateData, Reason1]),
     sys:print_log(Debug),
     ok.
 
 get_msg_str({'$gen_event', _Event}) ->
-    "** Last event in was ~p~n";
+    "** Last event in was ~tp~n";
 get_msg_str({'$gen_sync_event', _Event}) ->
-    "** Last sync event in was ~p~n";
+    "** Last sync event in was ~tp~n";
 get_msg_str({'$gen_all_state_event', _Event}) ->
-    "** Last event in was ~p (for all states)~n";
+    "** Last event in was ~tp (for all states)~n";
 get_msg_str({'$gen_sync_all_state_event', _Event}) ->
-    "** Last sync event in was ~p (for all states)~n";
+    "** Last sync event in was ~tp (for all states)~n";
 get_msg_str({timeout, _Ref, {'$gen_timer', _Msg}}) ->
-    "** Last timer event in was ~p~n";
+    "** Last timer event in was ~tp~n";
 get_msg_str({timeout, _Ref, {'$gen_event', _Msg}}) ->
-    "** Last timer event in was ~p~n";
+    "** Last timer event in was ~tp~n";
 get_msg_str(_Msg) ->
-    "** Last message in was ~p~n".
+    "** Last message in was ~tp~n".
 
 get_msg({'$gen_event', Event}) -> Event;
 get_msg({'$gen_sync_event', Event}) -> Event;
diff --git a/lib/stdlib/src/gen_server.erl b/lib/stdlib/src/gen_server.erl
index a3d53efd0d..ac172325b5 100644
--- a/lib/stdlib/src/gen_server.erl
+++ b/lib/stdlib/src/gen_server.erl
@@ -116,23 +116,27 @@
 %%%=========================================================================
 
 -callback init(Args :: term()) ->
-    {ok, State :: term()} | {ok, State :: term(), timeout() | hibernate} |
+    {ok, State :: term()} | {ok, State :: term(), timeout() | hibernate | {continue, term()}} |
     {stop, Reason :: term()} | ignore.
 -callback handle_call(Request :: term(), From :: {pid(), Tag :: term()},
                       State :: term()) ->
     {reply, Reply :: term(), NewState :: term()} |
-    {reply, Reply :: term(), NewState :: term(), timeout() | hibernate} |
+    {reply, Reply :: term(), NewState :: term(), timeout() | hibernate | {continue, term()}} |
     {noreply, NewState :: term()} |
-    {noreply, NewState :: term(), timeout() | hibernate} |
+    {noreply, NewState :: term(), timeout() | hibernate | {continue, term()}} |
     {stop, Reason :: term(), Reply :: term(), NewState :: term()} |
     {stop, Reason :: term(), NewState :: term()}.
 -callback handle_cast(Request :: term(), State :: term()) ->
     {noreply, NewState :: term()} |
-    {noreply, NewState :: term(), timeout() | hibernate} |
+    {noreply, NewState :: term(), timeout() | hibernate | {continue, term()}} |
     {stop, Reason :: term(), NewState :: term()}.
 -callback handle_info(Info :: timeout | term(), State :: term()) ->
     {noreply, NewState :: term()} |
-    {noreply, NewState :: term(), timeout() | hibernate} |
+    {noreply, NewState :: term(), timeout() | hibernate | {continue, term()}} |
+    {stop, Reason :: term(), NewState :: term()}.
+-callback handle_continue(Info :: term(), State :: term()) ->
+    {noreply, NewState :: term()} |
+    {noreply, NewState :: term(), timeout() | hibernate | {continue, term()}} |
     {stop, Reason :: term(), NewState :: term()}.
 -callback terminate(Reason :: (normal | shutdown | {shutdown, term()} |
                                term()),
@@ -149,7 +153,7 @@
       Status :: term().
 
 -optional_callbacks(
-    [handle_info/2, terminate/2, code_change/3, format_status/2]).
+    [handle_info/2, handle_continue/2, terminate/2, code_change/3, format_status/2]).
 
 %%%  -----------------------------------------------------------------
 %%% Starts a generic server.
@@ -309,7 +313,7 @@ enter_loop(Mod, Options, State, ServerName, Timeout) ->
     Name = gen:get_proc_name(ServerName),
     Parent = gen:get_parent(),
     Debug = gen:debug_options(Name, Options),
-	HibernateAfterTimeout = gen:hibernate_after(Options),
+    HibernateAfterTimeout = gen:hibernate_after(Options),
     loop(Parent, Name, State, Mod, Timeout, HibernateAfterTimeout, Debug).
 
 %%%========================================================================
@@ -374,6 +378,19 @@ init_it(Mod, Args) ->
 %%% ---------------------------------------------------
 %%% The MAIN loop.
 %%% ---------------------------------------------------
+
+loop(Parent, Name, State, Mod, {continue, Continue} = Msg, HibernateAfterTimeout, Debug) ->
+    Reply = try_dispatch(Mod, handle_continue, Continue, State),
+    case Debug of
+	[] ->
+	    handle_common_reply(Reply, Parent, Name, undefined, Msg, Mod,
+				HibernateAfterTimeout, State);
+	_ ->
+	    Debug1 = sys:handle_debug(Debug, fun print_event/3, Name, Msg),
+	    handle_common_reply(Reply, Parent, Name, undefined, Msg, Mod,
+				HibernateAfterTimeout, State, Debug1)
+    end;
+
 loop(Parent, Name, State, Mod, hibernate, HibernateAfterTimeout, Debug) ->
     proc_lib:hibernate(?MODULE,wake_hib,[Parent, Name, State, Mod, HibernateAfterTimeout, Debug]);
 
@@ -621,7 +638,7 @@ try_dispatch(Mod, Func, Msg, State) ->
             case erlang:function_exported(Mod, handle_info, 2) of
                 false ->
                     error_logger:warning_msg("** Undefined handle_info in ~p~n"
-                                             "** Unhandled message: ~p~n",
+                                             "** Unhandled message: ~tp~n",
                                              [Mod, Msg]),
                     {ok, {noreply, State}};
                 true ->
@@ -785,21 +802,21 @@ system_replace_state(StateFun, [Name, State, Mod, Time, HibernateAfterTimeout])
 print_event(Dev, {in, Msg}, Name) ->
     case Msg of
 	{'$gen_call', {From, _Tag}, Call} ->
-	    io:format(Dev, "*DBG* ~p got call ~p from ~w~n",
+	    io:format(Dev, "*DBG* ~tp got call ~tp from ~w~n",
 		      [Name, Call, From]);
 	{'$gen_cast', Cast} ->
-	    io:format(Dev, "*DBG* ~p got cast ~p~n",
+	    io:format(Dev, "*DBG* ~tp got cast ~tp~n",
 		      [Name, Cast]);
 	_ ->
-	    io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg])
+	    io:format(Dev, "*DBG* ~tp got ~tp~n", [Name, Msg])
     end;
 print_event(Dev, {out, Msg, To, State}, Name) ->
-    io:format(Dev, "*DBG* ~p sent ~p to ~w, new state ~w~n", 
+    io:format(Dev, "*DBG* ~tp sent ~tp to ~w, new state ~tp~n",
 	      [Name, Msg, To, State]);
 print_event(Dev, {noreply, State}, Name) ->
-    io:format(Dev, "*DBG* ~p new state ~w~n", [Name, State]);
+    io:format(Dev, "*DBG* ~tp new state ~tp~n", [Name, State]);
 print_event(Dev, Event, Name) ->
-    io:format(Dev, "*DBG* ~p dbg  ~p~n", [Name, Event]).
+    io:format(Dev, "*DBG* ~tp dbg  ~tp~n", [Name, Event]).
 
 
 %%% ---------------------------------------------------
@@ -881,10 +898,10 @@ error_info(Reason, Name, From, Msg, State, Debug) ->
 	end,    
     {ClientFmt, ClientArgs} = client_stacktrace(From),
     LimitedState = error_logger:limit_term(State),
-    error_logger:format("** Generic server ~p terminating \n"
-                        "** Last message in was ~p~n"
-                        "** When Server state == ~p~n"
-                        "** Reason for termination == ~n** ~p~n" ++ ClientFmt,
+    error_logger:format("** Generic server ~tp terminating \n"
+                        "** Last message in was ~tp~n"
+                        "** When Server state == ~tp~n"
+                        "** Reason for termination == ~n** ~tp~n" ++ ClientFmt,
                         [Name, Msg, LimitedState, Reason1] ++ ClientArgs),
     sys:print_log(Debug),
     ok.
@@ -898,11 +915,11 @@ client_stacktrace(From) when is_pid(From), node(From) =:= node() ->
             {"** Client ~p is dead~n", [From]};
         [{current_stacktrace, Stacktrace}, {registered_name, []}]  ->
             {"** Client ~p stacktrace~n"
-             "** ~p~n",
+             "** ~tp~n",
              [From, Stacktrace]};
         [{current_stacktrace, Stacktrace}, {registered_name, Name}]  ->
-            {"** Client ~p stacktrace~n"
-             "** ~p~n",
+            {"** Client ~tp stacktrace~n"
+             "** ~tp~n",
              [Name, Stacktrace]}
     end;
 client_stacktrace(From) when is_pid(From) ->
diff --git a/lib/stdlib/src/gen_statem.erl b/lib/stdlib/src/gen_statem.erl
index b5e9da1e66..cd6312855d 100644
--- a/lib/stdlib/src/gen_statem.erl
+++ b/lib/stdlib/src/gen_statem.erl
@@ -296,7 +296,7 @@
     (Reason :: term()).
 
 %% Format the callback module state in some sensible that is
-%% often condensed way.  For StatusOption =:= 'normal' the perferred
+%% often condensed way.  For StatusOption =:= 'normal' the preferred
 %% return term is [{data,[{"State",FormattedState}]}], and for
 %% StatusOption =:= 'terminate' it is just FormattedState.
 -callback format_status(
@@ -510,8 +510,6 @@ call(ServerRef, Request, Timeout) ->
 
 parse_timeout(Timeout) ->
     case Timeout of
-	{clean_timeout,infinity} ->
-	    {dirty_timeout,infinity};
 	{clean_timeout,_} ->
 	    Timeout;
 	{dirty_timeout,_} ->
@@ -791,34 +789,34 @@ format_status(
 
 print_event(Dev, {in,Event}, {Name,State}) ->
     io:format(
-      Dev, "*DBG* ~p receive ~s in state ~p~n",
+      Dev, "*DBG* ~tp receive ~ts in state ~tp~n",
       [Name,event_string(Event),State]);
 print_event(Dev, {out,Reply,{To,_Tag}}, {Name,State}) ->
     io:format(
-      Dev, "*DBG* ~p send ~p to ~p from state ~p~n",
+      Dev, "*DBG* ~tp send ~tp to ~p from state ~tp~n",
       [Name,Reply,To,State]);
 print_event(Dev, {terminate,Reason}, {Name,State}) ->
     io:format(
-      Dev, "*DBG* ~p terminate ~p in state ~p~n",
+      Dev, "*DBG* ~tp terminate ~tp in state ~tp~n",
       [Name,Reason,State]);
 print_event(Dev, {Tag,Event,NextState}, {Name,State}) ->
     StateString =
 	case NextState of
 	    State ->
-		io_lib:format("~p", [State]);
+		io_lib:format("~tp", [State]);
 	    _ ->
-		io_lib:format("~p => ~p", [State,NextState])
+		io_lib:format("~tp => ~tp", [State,NextState])
 	end,
     io:format(
-      Dev, "*DBG* ~p ~w ~s in state ~s~n",
+      Dev, "*DBG* ~tp ~tw ~ts in state ~ts~n",
       [Name,Tag,event_string(Event),StateString]).
 
 event_string(Event) ->
     case Event of
 	{{call,{Pid,_Tag}},Request} ->
-	    io_lib:format("call ~p from ~w", [Request,Pid]);
+	    io_lib:format("call ~tp from ~w", [Request,Pid]);
 	{EventType,EventContent} ->
-	    io_lib:format("~w ~p", [EventType,EventContent])
+	    io_lib:format("~tw ~tp", [EventType,EventContent])
     end.
 
 sys_debug(Debug, #{name := Name}, State, Entry) ->
@@ -1732,25 +1730,25 @@ error_info(
 		 CallbackMode
 	 end,
     error_logger:format(
-      "** State machine ~p terminating~n" ++
+      "** State machine ~tp terminating~n" ++
 	  case Q of
 	      [] -> "";
-	      _ -> "** Last event = ~p~n"
+	      _ -> "** Last event = ~tp~n"
 	  end ++
-	  "** When server state  = ~p~n" ++
-	  "** Reason for termination = ~w:~p~n" ++
+	  "** When server state  = ~tp~n" ++
+	  "** Reason for termination = ~w:~tp~n" ++
 	  "** Callback mode = ~p~n" ++
 	  case Q of
-	      [_,_|_] -> "** Queued = ~p~n";
+	      [_,_|_] -> "** Queued = ~tp~n";
 	      _ -> ""
 	  end ++
 	  case P of
 	      [] -> "";
-	      _ -> "** Postponed = ~p~n"
+	      _ -> "** Postponed = ~tp~n"
 	  end ++
 	  case FixedStacktrace of
 	      [] -> "";
-	      _ -> "** Stacktrace =~n**  ~p~n"
+	      _ -> "** Stacktrace =~n**  ~tp~n"
 	  end,
       [Name |
        case Q of
diff --git a/lib/stdlib/src/io_lib_format.erl b/lib/stdlib/src/io_lib_format.erl
index 4b2d15c8b3..e345810ca0 100644
--- a/lib/stdlib/src/io_lib_format.erl
+++ b/lib/stdlib/src/io_lib_format.erl
@@ -380,7 +380,7 @@ float_e(_Fl, {Ds,E}, P) ->
 	{Fs,false} -> [Fs|float_exp(E-1)]
     end.
 
-%% float_man([Digit], Icount, Dcount) -> {[Chars],CarryFlag}.
+%% float_man([Digit], Icount, Dcount) -> {[Char],CarryFlag}.
 %%  Generate the characters in the mantissa from the digits with Icount
 %%  characters before the '.' and Dcount decimals. Handle carry and let
 %%  caller decide what to do at top.
@@ -395,7 +395,7 @@ float_man([D|Ds], I, Dc) ->
 	{Cs,false} -> {[D|Cs],false}
     end;
 float_man([], I, Dc) ->				%Pad with 0's
-    {string:chars($0, I, [$.|string:chars($0, Dc)]),false}.
+    {lists:duplicate(I, $0) ++ [$.|lists:duplicate(Dc, $0)],false}.
 
 float_man([D|_], 0) when D >= $5 -> {[],true};
 float_man([_|_], 0) -> {[],false};
@@ -405,7 +405,7 @@ float_man([D|Ds], Dc) ->
 	{Cs,true} -> {[D+1|Cs],false}; 
 	{Cs,false} -> {[D|Cs],false}
     end;
-float_man([], Dc) -> {string:chars($0, Dc),false}.	%Pad with 0's
+float_man([], Dc) -> {lists:duplicate(Dc, $0),false}.	%Pad with 0's
 
 %% float_exp(Exponent) -> [Char].
 %%  Generate the exponent of a floating point number. Always include sign.
@@ -429,7 +429,7 @@ fwrite_f(Fl, F, Adj, P, Pad) when P >= 1 ->
 float_f(Fl, Fd, P) when Fl < 0.0 ->
     [$-|float_f(-Fl, Fd, P)];
 float_f(Fl, {Ds,E}, P) when E =< 0 ->
-    float_f(Fl, {string:chars($0, -E+1, Ds),1}, P);	%Prepend enough 0's
+    float_f(Fl, {lists:duplicate(-E+1, $0)++Ds,1}, P);	%Prepend enough 0's
 float_f(_Fl, {Ds,E}, P) ->
     case float_man(Ds, E, P) of
 	{Fs,true} -> "1" ++ Fs;			%Handle carry
@@ -751,7 +751,7 @@ adjust(Data, Pad, right) -> [Pad|Data].
 flat_trunc(List, N) when is_integer(N), N >= 0 ->
     string:slice(List, 0, N).
 
-%% A deep version of string:chars/2,3
+%% A deep version of lists:duplicate/2
 
 chars(_C, 0) ->
     [];
diff --git a/lib/stdlib/src/lib.erl b/lib/stdlib/src/lib.erl
index c6eb0d7915..a7980cc294 100644
--- a/lib/stdlib/src/lib.erl
+++ b/lib/stdlib/src/lib.erl
@@ -646,7 +646,7 @@ pp_arguments(PF, As, I, Enc) ->
             Ll = length(L),
             A = list_to_atom(lists:duplicate(Ll, $a)),
             S0 = unicode:characters_to_list(PF([A | T], I+1), Enc),
-            brackets_to_parens([$[,L,string:sub_string(S0, 2+Ll)], Enc);
+            brackets_to_parens([$[,L,string:slice(S0, 1+Ll)], Enc);
         _ -> 
             brackets_to_parens(PF(As, I+1), Enc)
     end.
diff --git a/lib/stdlib/src/otp_internal.erl b/lib/stdlib/src/otp_internal.erl
index c59db903dc..122b476ddb 100644
--- a/lib/stdlib/src/otp_internal.erl
+++ b/lib/stdlib/src/otp_internal.erl
@@ -466,8 +466,6 @@ obsolete_1(inviso, _, _) ->
     {removed,"the inviso application was removed in R16"};
 
 %% Added in R15B01.
-obsolete_1(gs, _, _) ->
-    {removed,"the gs application has been removed; use the wx application instead"};
 obsolete_1(ssh, sign_data, 2) ->
     {removed,"removed in R16A; use public_key:pem_decode/1, public_key:pem_entry_decode/1 "
      "and public_key:sign/3 instead"};
@@ -611,6 +609,52 @@ obsolete_1(filename, find_src, 2) ->
 obsolete_1(erlang, hash, 2) ->
     {removed, {erlang, phash2, 2}, "20.0"};
 
+%% Added in OTP-21
+obsolete_1(string, len, 1) ->
+    {deprecated, "deprecated; use string:length/3 instead"};
+obsolete_1(string, concat, 2) ->
+    {deprecated, "deprecated; use [Str1,Str2] instead"};
+obsolete_1(string, str, 2) ->
+    {deprecated, "deprecated; use string:find/2 instead"};
+obsolete_1(string, rstr, 2) ->
+    {deprecated, "deprecated; use string:find/3 instead"};
+obsolete_1(string, chr, 2) ->
+    {deprecated, "deprecated; use string:find/2 instead"};
+obsolete_1(string, rchr, 2) ->
+    {deprecated, "deprecated; use string:find/3 instead"};
+obsolete_1(string, span, 2) ->
+    {deprecated, "deprecated; use string:take/2 instead"};
+obsolete_1(string, cspan, 2) ->
+    {deprecated, "deprecated; use string:take/3 instead"};
+obsolete_1(string, substr, _) ->
+    {deprecated, "deprecated; use string:slice/3 instead"};
+obsolete_1(string, tokens, 2) ->
+    {deprecated, "deprecated; use string:lexemes/2 instead"};
+obsolete_1(string, chars, _) ->
+    {deprecated, "deprecated; use lists:duplicate/2 instead"};
+obsolete_1(string, copies, _) ->
+    {deprecated, "deprecated; use lists:duplicate/2 instead"};
+obsolete_1(string, words, _) ->
+    {deprecated, "deprecated; use string:lexemes/2 instead"};
+obsolete_1(string, strip, _) ->
+    {deprecated, "deprecated; use string:trim/3 instead"};
+obsolete_1(string, sub_word, _) ->
+    {deprecated, "deprecated; use string:nth_lexeme/3 instead"};
+obsolete_1(string, sub_string, _) ->
+    {deprecated, "deprecated; use string:slice/3 instead"};
+obsolete_1(string, left, _) ->
+    {deprecated, "deprecated; use string:pad/3 instead"};
+obsolete_1(string, right, _) ->
+    {deprecated, "deprecated; use string:pad/3 instead"};
+obsolete_1(string, centre, _) ->
+    {deprecated, "deprecated; use string:pad/3 instead"};
+obsolete_1(string, join, _) ->
+    {deprecated, "deprecated; use lists:join/2 instead"};
+obsolete_1(string, to_upper, _) ->
+    {deprecated, "deprecated; use string:uppercase/1 or string:titlecase/1 instead"};
+obsolete_1(string, to_lower, _) ->
+    {deprecated, "deprecated; use string:lowercase/1 or string:casefold/1 instead"};
+
 %% not obsolete
 
 obsolete_1(_, _, _) ->
diff --git a/lib/stdlib/src/pool.erl b/lib/stdlib/src/pool.erl
index 05950a1d7c..b12ff205b1 100644
--- a/lib/stdlib/src/pool.erl
+++ b/lib/stdlib/src/pool.erl
@@ -25,7 +25,7 @@
 %% with the least load !!!!
 %% This function is callable from any node including the master
 %% That is part of the pool
-%% nodes are scheduled on a per usgae basis and per load basis,
+%% nodes are scheduled on a per usage basis and per load basis,
 %% Whenever we use a node, we put at the end of the queue, and whenever
 %% a node report a change in load, we insert it accordingly
 
@@ -197,7 +197,7 @@ pure_insert({Load,Node},[{L,N}|Tail]) when Load < L ->
 pure_insert(L,[H|T]) -> [H|pure_insert(L,T)].
 
 %% Really should not measure the contributions from
-%% the back ground processes here .... which we do :-(
+%% the background processes here .... which we do :-(
 %% We don't have to monitor the master, since we're slaves anyway
 
 statistic_collector() ->
@@ -213,7 +213,7 @@ statistic_collector(I) ->
 	    stat_loop(M, 999999)
     end.
 
-%% Do not tell the master about our load if it has not  changed
+%% Do not tell the master about our load if it has not changed
 
 stat_loop(M, Old) ->
     sleep(2000),
diff --git a/lib/stdlib/src/proc_lib.erl b/lib/stdlib/src/proc_lib.erl
index d4d1bdccec..8e10cbe93b 100644
--- a/lib/stdlib/src/proc_lib.erl
+++ b/lib/stdlib/src/proc_lib.erl
@@ -823,22 +823,22 @@ to_string(A, _) ->
     io_lib:write_atom(A).
 
 pp_fun({Enc,Depth}) ->
-    {Letter,Tl} = case Depth of
-		      unlimited -> {"p",[]};
-		      _ -> {"P",[Depth]}
-		  end,
-    P = modifier(Enc) ++ Letter,
+    {P,Tl} = p(Enc, Depth),
     fun(Term, I) -> 
             io_lib:format("~." ++ integer_to_list(I) ++ P, [Term|Tl])
     end.
 
-format_tag(Indent, Tag, Data, {_Enc,Depth}) ->
-    case Depth of
-	unlimited ->
-	    io_lib:format("~s~p: ~80.18p~n", [Indent, Tag, Data]);
-	_ ->
-            io_lib:format("~s~p: ~80.18P~n", [Indent, Tag, Data, Depth])
-    end.
+format_tag(Indent, Tag, Data, {Enc,Depth}) ->
+    {P,Tl} = p(Enc, Depth),
+    io_lib:format("~s~p: ~80.18" ++ P ++ "\n", [Indent, Tag, Data|Tl]).
+
+p(Encoding, Depth) ->
+    {Letter, Tl}  = case Depth of
+                        unlimited -> {"p", []};
+                        _         -> {"P", [Depth]}
+                    end,
+    P = modifier(Encoding) ++ Letter,
+    {P, Tl}.
 
 modifier(latin1) -> "";
 modifier(_) -> "t".
diff --git a/lib/stdlib/src/qlc.erl b/lib/stdlib/src/qlc.erl
index 535ca57a6b..f11f9d0a0b 100644
--- a/lib/stdlib/src/qlc.erl
+++ b/lib/stdlib/src/qlc.erl
@@ -1132,7 +1132,7 @@ wait_for_request(Parent, MonRef, Post) ->
             wait_for_request(Parent, MonRef, Post);
         Other ->
             error_logger:error_msg(
-              "The qlc cursor ~w received an unexpected message:\n~p\n", 
+              "The qlc cursor ~w received an unexpected message:\n~tp\n",
               [self(), Other]),
             wait_for_request(Parent, MonRef, Post)
     end.
diff --git a/lib/stdlib/src/rand.erl b/lib/stdlib/src/rand.erl
index 7a8a5e6d4a..362e98006e 100644
--- a/lib/stdlib/src/rand.erl
+++ b/lib/stdlib/src/rand.erl
@@ -21,8 +21,8 @@
 %% Multiple PRNG module for Erlang/OTP
 %% Copyright (c) 2015-2016 Kenji Rikitake
 %%
-%% exrop (xoroshiro116+) added and statistical distribution
-%% improvements by the Erlang/OTP team 2017
+%% exrop (xoroshiro116+) added, statistical distribution
+%% improvements and uniform_real added by the Erlang/OTP team 2017
 %% =====================================================================
 
 -module(rand).
@@ -30,10 +30,14 @@
 -export([seed_s/1, seed_s/2, seed/1, seed/2,
 	 export_seed/0, export_seed_s/1,
          uniform/0, uniform/1, uniform_s/1, uniform_s/2,
+         uniform_real/0, uniform_real_s/1,
          jump/0, jump/1,
 	     normal/0, normal/2, normal_s/1, normal_s/3
 	]).
 
+%% Debug
+-export([make_float/3, float2str/1, bc64/1]).
+
 -compile({inline, [exs64_next/1, exsplus_next/1,
 		   exs1024_next/1, exs1024_calc/2,
                    exrop_next/1, exrop_next_s/2,
@@ -60,6 +64,10 @@
    %% N i evaluated 3 times
    (?BSL((Bits), (X), (N)) bor ((X) bsr ((Bits)-(N))))).
 
+-define(
+   BC(V, N),
+   bc((V), ?BIT((N) - 1), N)).
+
 %%-define(TWO_POW_MINUS53, (math:pow(2, -53))).
 -define(TWO_POW_MINUS53, 1.11022302462515657e-16).
 
@@ -84,14 +92,21 @@
 %% The 'bits' field indicates how many bits the integer
 %% returned from 'next' has got, i.e 'next' shall return
 %% an random integer in the range 0..(2^Bits - 1).
-%% At least 53 bits is required for the floating point
-%% producing fallbacks.  This field is only used when
-%% the 'uniform' or 'uniform_n' fields are not defined.
+%% At least 55 bits is required for the floating point
+%% producing fallbacks, but 56 bits would be more future proof.
 %%
 %% The fields 'next', 'uniform' and 'uniform_n'
-%% implement the algorithm.  If 'uniform' or 'uinform_n'
+%% implement the algorithm.  If 'uniform' or 'uniform_n'
 %% is not present there is a fallback using 'next' and either
-%% 'bits' or the deprecated 'max'.
+%% 'bits' or the deprecated 'max'.  The 'next' function
+%% must generate a word with at least 56 good random bits.
+%%
+%% The 'weak_low_bits' field indicate how many bits are of
+%% lesser quality and they will not be used by the floating point
+%% producing functions, nor by the range producing functions
+%% when more bits are needed, to avoid weak bits in the middle
+%% of the generated bits.  The lowest bits from the range
+%% functions still have the generator's quality.
 %%
 -type alg_handler() ::
         #{type := alg(),
@@ -148,11 +163,7 @@
 
 %% For ranges larger than the algorithm bit size
 uniform_range(Range, #{next:=Next, bits:=Bits} = Alg, R, V) ->
-    WeakLowBits =
-        case Alg of
-            #{weak_low_bits:=WLB} -> WLB;
-            #{} -> 0
-        end,
+    WeakLowBits = maps:get(weak_low_bits, Alg, 0),
     %% Maybe waste the lowest bit(s) when shifting in new bits
     Shift = Bits - WeakLowBits,
     ShiftMask = bnot ?MASK(WeakLowBits),
@@ -297,7 +308,7 @@ uniform_s({#{bits:=Bits, next:=Next} = Alg, R0}) ->
     {(V bsr (Bits - 53)) * ?TWO_POW_MINUS53, {Alg, R1}};
 uniform_s({#{max:=Max, next:=Next} = Alg, R0}) ->
     {V, R1} = Next(R0),
-    %% Old broken algorithm with non-uniform density
+    %% Old algorithm with non-uniform density
     {V / (Max + 1), {Alg, R1}}.
 
 
@@ -317,7 +328,7 @@ uniform_s(N, {#{bits:=Bits, next:=Next} = Alg, R0})
     ?uniform_range(N, Alg, R1, V, MaxMinusN, I);
 uniform_s(N, {#{max:=Max, next:=Next} = Alg, R0})
   when is_integer(N), 1 =< N ->
-    %% Old broken algorithm with skewed probability
+    %% Old algorithm with skewed probability
     %% and gap in ranges > Max
     {V, R1} = Next(R0),  
     if
@@ -328,6 +339,189 @@ uniform_s(N, {#{max:=Max, next:=Next} = Alg, R0})
             {trunc(F * N) + 1, {Alg, R1}}
     end.
 
+%% uniform_real/0: returns a random float X where 0.0 < X =< 1.0,
+%% updating the state in the process dictionary.
+
+-spec uniform_real() -> X :: float().
+uniform_real() ->
+    {X, Seed} = uniform_real_s(seed_get()),
+    _ = seed_put(Seed),
+    X.
+
+%% uniform_real_s/1: given a state, uniform_s/1
+%% returns a random float X where 0.0 < X =< 1.0,
+%% and a new state.
+%%
+%% This function does not use the same form of uniformity
+%% as the uniform_s/1 function.
+%%
+%% Instead, this function does not generate numbers with equal
+%% distance in the interval, but rather tries to keep all mantissa
+%% bits random also for small numbers, meaning that the distance
+%% between possible numbers decreases when the numbers
+%% approaches 0.0, as does the possibility for a particular
+%% number.  Hence uniformity is preserved.
+%%
+%% To generate 56 bits at the time instead of 53 is actually
+%% a speed optimization since the probability to have to
+%% generate a second word decreases by 1/2 for every extra bit.
+%%
+%% This function generates normalized numbers, so the smallest number
+%% that can be generated is 2^-1022 with the distance 2^-1074
+%% to the next to smallest number, compared to 2^-53 for uniform_s/1.
+%%
+%% This concept of uniformity should work better for applications
+%% where you need to calculate 1.0/X or math:log(X) since those
+%% operations benefits from larger precision approaching 0.0,
+%% and that this function does not return 0.0 nor denormalized
+%% numbers very close to 0.0.  The log() operation in The Box-Muller
+%% transformation for normal distribution is an example of this.
+%%
+%%-define(TWO_POW_MINUS55, (math:pow(2, -55))).
+%%-define(TWO_POW_MINUS110, (math:pow(2, -110))).
+%%-define(TWO_POW_MINUS55, 2.7755575615628914e-17).
+%%-define(TWO_POW_MINUS110, 7.7037197775489436e-34).
+%%
+-spec uniform_real_s(State :: state()) -> {X :: float(), NewState :: state()}.
+uniform_real_s({#{bits:=Bits, next:=Next} = Alg, R0}) ->
+    %% Generate a 56 bit number without using the weak low bits.
+    %%
+    %% Be sure to use only 53 bits when multiplying with
+    %% math:pow(2.0, -N) to avoid rounding which would make
+    %% "even" floats more probable than "odd".
+    %%
+    {V1, R1} = Next(R0),
+    M1 = V1 bsr (Bits - 56),
+    if
+        ?BIT(55) =< M1 ->
+            %% We have 56 bits - waste 3
+            {(M1 bsr 3) * math:pow(2.0, -53), {Alg, R1}};
+        ?BIT(54) =< M1 ->
+            %% We have 55 bits - waste 2
+            {(M1 bsr 2) * math:pow(2.0, -54), {Alg, R1}};
+        ?BIT(53) =< M1 ->
+            %% We have 54 bits - waste 1
+            {(M1 bsr 1) * math:pow(2.0, -55), {Alg, R1}};
+        ?BIT(52) =< M1 ->
+            %% We have 53 bits - use all
+            {M1 * math:pow(2.0, -56), {Alg, R1}};
+        true ->
+            %% Need more bits
+            {V2, R2} = Next(R1),
+            uniform_real_s(Alg, Next, M1, -56, R2, V2, Bits)
+    end;
+uniform_real_s({#{max:=_, next:=Next} = Alg, R0}) ->
+    %% Generate a 56 bit number.
+    %% Ignore the weak low bits for these old algorithms,
+    %% just produce something reasonable.
+    %%
+    %% Be sure to use only 53 bits when multiplying with
+    %% math:pow(2.0, -N) to avoid rounding which would make
+    %% "even" floats more probable than "odd".
+    %%
+    {V1, R1} = Next(R0),
+    M1 = ?MASK(56, V1),
+    if
+        ?BIT(55) =< M1 ->
+            %% We have 56 bits - waste 3
+            {(M1 bsr 3) * math:pow(2.0, -53), {Alg, R1}};
+        ?BIT(54) =< M1 ->
+            %% We have 55 bits - waste 2
+            {(M1 bsr 2) * math:pow(2.0, -54), {Alg, R1}};
+        ?BIT(53) =< M1 ->
+            %% We have 54 bits - waste 1
+            {(M1 bsr 1) * math:pow(2.0, -55), {Alg, R1}};
+        ?BIT(52) =< M1 ->
+            %% We have 53 bits - use all
+            {M1 * math:pow(2.0, -56), {Alg, R1}};
+        true ->
+            %% Need more bits
+            {V2, R2} = Next(R1),
+            uniform_real_s(Alg, Next, M1, -56, R2, V2, 56)
+    end.
+
+uniform_real_s(Alg, _Next, M0, -1064, R1, V1, Bits) -> % 19*56
+    %% This is a very theoretical bottom case.
+    %% The odds of getting here is about 2^-1008,
+    %% through a white box test case, or thanks to
+    %% a malfunctioning PRNG producing 18 56-bit zeros in a row.
+    %%
+    %% Fill up to 53 bits, we have at most 52
+    B0 = (53 - ?BC(M0, 52)), % Missing bits
+    {(((M0 bsl B0) bor (V1 bsr (Bits - B0))) * math:pow(2.0, -1064 - B0)),
+     {Alg, R1}};
+uniform_real_s(Alg, Next, M0, BitNo, R1, V1, Bits) ->
+    if
+        %% Optimize the most probable.
+        %% Fill up to 53 bits.
+        ?BIT(51) =< M0 ->
+            %% We have 52 bits in M0 - need 1
+            {(((M0 bsl 1) bor (V1 bsr (Bits - 1)))
+              * math:pow(2.0, BitNo - 1)),
+             {Alg, R1}};
+        ?BIT(50) =< M0 ->
+            %% We have 51 bits in M0 - need 2
+            {(((M0 bsl 2) bor (V1 bsr (Bits - 2)))
+              * math:pow(2.0, BitNo - 2)),
+             {Alg, R1}};
+        ?BIT(49) =< M0 ->
+            %% We have 50 bits in M0 - need 3
+            {(((M0 bsl 3) bor (V1 bsr (Bits - 3)))
+              * math:pow(2.0, BitNo - 3)),
+             {Alg, R1}};
+        M0 == 0 ->
+            M1 = V1 bsr (Bits - 56),
+            if
+                ?BIT(55) =< M1 ->
+                    %% We have 56 bits - waste 3
+                    {(M1 bsr 3) * math:pow(2.0, BitNo - 53), {Alg, R1}};
+                ?BIT(54) =< M1 ->
+                    %% We have 55 bits - waste 2
+                    {(M1 bsr 2) * math:pow(2.0, BitNo - 54), {Alg, R1}};
+                ?BIT(53) =< M1 ->
+                    %% We have 54 bits - waste 1
+                    {(M1 bsr 1) * math:pow(2.0, BitNo - 55), {Alg, R1}};
+                ?BIT(52) =< M1 ->
+                    %% We have 53 bits - use all
+                    {M1 * math:pow(2.0, BitNo - 56), {Alg, R1}};
+                BitNo =:= -1008 ->
+                    %% Endgame
+                    %% For the last round we can not have 14 zeros or more
+                    %% at the top of M1 because then we will underflow,
+                    %% so we need at least 43 bits
+                    if
+                        ?BIT(42) =< M1 ->
+                            %% We have 43 bits - get the last bits
+                            uniform_real_s(Alg, Next, M1, BitNo - 56, R1);
+                        true ->
+                            %% Would underflow 2^-1022 - start all over
+                            %%
+                            %% We could just crash here since the odds for
+                            %% the PRNG being broken is much higher than
+                            %% for a good PRNG generating this many zeros
+                            %% in a row.  Maybe we should write an error
+                            %% report or call this a system limit...?
+                            uniform_real_s({Alg, R1})
+                    end;
+                true ->
+                    %% Need more bits
+                    uniform_real_s(Alg, Next, M1, BitNo - 56, R1)
+            end;
+        true ->
+            %% Fill up to 53 bits
+            B0 = 53 - ?BC(M0, 49), % Number of bits we need to append
+            {(((M0 bsl B0) bor (V1 bsr (Bits - B0)))
+              * math:pow(2.0, BitNo - B0)),
+             {Alg, R1}}
+    end.
+%%
+uniform_real_s(#{bits:=Bits} = Alg, Next, M0, BitNo, R0) ->
+    {V1, R1} = Next(R0),
+    uniform_real_s(Alg, Next, M0, BitNo, R1, V1, Bits);
+uniform_real_s(#{max:=_} = Alg, Next, M0, BitNo, R0) ->
+    {V1, R1} = Next(R0),
+    uniform_real_s(Alg, Next, M0, BitNo, R1, ?MASK(56, V1), 56).
+
 %% jump/1: given a state, jump/1
 %% returns a new state which is equivalent to that
 %% after a large number of call defined for each algorithm.
@@ -1025,3 +1219,42 @@ normal_fi(Indx) ->
 	     1.0214971439701471e-02,8.6165827693987316e-03,7.0508754713732268e-03,
 	     5.5224032992509968e-03,4.0379725933630305e-03,2.6090727461021627e-03,
 	     1.2602859304985975e-03}).
+
+%%%bitcount64(0) -> 0;
+%%%bitcount64(V) -> 1 + bitcount(V, 64).
+%%%
+%%%-define(
+%%%   BITCOUNT(V, N),
+%%%   bitcount(V, N) ->
+%%%       if
+%%%           (1 bsl ((N) bsr 1)) =< (V) ->
+%%%               ((N) bsr 1) + bitcount((V) bsr ((N) bsr 1), ((N) bsr 1));
+%%%           true ->
+%%%               bitcount((V), ((N) bsr 1))
+%%%       end).
+%%%?BITCOUNT(V, 64);
+%%%?BITCOUNT(V, 32);
+%%%?BITCOUNT(V, 16);
+%%%?BITCOUNT(V, 8);
+%%%?BITCOUNT(V, 4);
+%%%?BITCOUNT(V, 2);
+%%%bitcount(_, 1) -> 0.
+
+bc64(V) -> ?BC(V, 64).
+
+%% Linear from high bit - higher probability first gives faster execution
+bc(V, B, N) when B =< V -> N;
+bc(V, B, N) -> bc(V, B bsr 1, N - 1).
+    
+make_float(S, E, M) ->
+    <<F/float>> = <<S:1, E:11, M:52>>,
+    F.
+
+float2str(N) ->
+    <<S:1, E:11, M:52>> = <<(float(N))/float>>,
+    lists:flatten(
+      io_lib:format(
+      "~c~c.~13.16.0bE~b",
+      [case S of 1 -> $-; 0 -> $+ end,
+       case E of 0 -> $0; _ -> $1 end,
+       M, E - 16#3ff])).
diff --git a/lib/stdlib/src/shell.erl b/lib/stdlib/src/shell.erl
index 26b3960f4f..212b143b1d 100644
--- a/lib/stdlib/src/shell.erl
+++ b/lib/stdlib/src/shell.erl
@@ -1459,7 +1459,7 @@ check_env(V) ->
         {ok, Val} ->
             Txt = io_lib:fwrite
                     ("Invalid value of STDLIB configuration parameter"
-                     "~w: ~tp\n", [V, Val]),
+                     "~tw: ~tp\n", [V, Val]),
 	    error_logger:info_report(lists:flatten(Txt))
     end.
 	    
diff --git a/lib/stdlib/src/slave.erl b/lib/stdlib/src/slave.erl
index 5b5c328c0c..b3f3206d67 100644
--- a/lib/stdlib/src/slave.erl
+++ b/lib/stdlib/src/slave.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2017. All Rights Reserved.
 %% 
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -77,7 +77,7 @@ start_pseudo(_,_,_) -> ok.  %% It's already there
       Pid :: pid().
 
 relay({badrpc,Reason}) ->
-    error_msg(" ** exiting relay server ~w :~w  **~n", [self(),Reason]),
+    error_msg(" ** exiting relay server ~w :~tw  **~n", [self(),Reason]),
     exit(Reason);
 relay(undefined) ->
     error_msg(" ** exiting relay server ~w  **~n", [self()]),
@@ -320,7 +320,7 @@ mk_cmd(Host, Name, Args, Waiter, Prog0) ->
 %% emulator and flags as the test node. The return from lib:progname()
 %% could then typically be '/<full_path_to>/cerl -gcov').
 quote_progname(Progname) ->
-    do_quote_progname(string:tokens(to_list(Progname)," ")).
+    do_quote_progname(string:lexemes(to_list(Progname)," ")).
 
 do_quote_progname([Prog]) ->
     "\""++Prog++"\"";
diff --git a/lib/stdlib/src/stdlib.app.src b/lib/stdlib/src/stdlib.app.src
index 3c449d3cb9..ab0824ca17 100644
--- a/lib/stdlib/src/stdlib.app.src
+++ b/lib/stdlib/src/stdlib.app.src
@@ -107,7 +107,7 @@
                dets]},
   {applications, [kernel]},
   {env, []},
-  {runtime_dependencies, ["sasl-3.0","kernel-5.0","erts-9.0","crypto-3.3",
+  {runtime_dependencies, ["sasl-3.0","kernel-6.0","erts-10.0","crypto-3.3",
 			  "compiler-5.0"]}
 ]}.
 
diff --git a/lib/stdlib/src/string.erl b/lib/stdlib/src/string.erl
index 4972da297d..5a4d2df2a6 100644
--- a/lib/stdlib/src/string.erl
+++ b/lib/stdlib/src/string.erl
@@ -87,6 +87,16 @@
 %%% May be removed
 -export([list_to_float/1, list_to_integer/1]).
 
+-deprecated([{len,1},{concat,2},
+             {str,2},{chr,2},{rchr,2},{rstr,2},
+             {span,2},{cspan,2},{substr,'_'},{tokens,2},
+             {chars,'_'},
+             {copies,2},{words,'_'},{strip,'_'},
+             {sub_word,'_'},{left,'_'},{right,'_'},
+             {sub_string,'_'},{centre,'_'},{join,2},
+             {to_upper,1}, {to_lower,1}
+            ]).
+
 %% Uses bifs: string:list_to_float/1 and string:list_to_integer/1
 -spec list_to_float(String) -> {Float, Rest} | {'error', Reason} when
       String :: string(),
diff --git a/lib/stdlib/src/supervisor.erl b/lib/stdlib/src/supervisor.erl
index 1cd65fbf18..7920e55930 100644
--- a/lib/stdlib/src/supervisor.erl
+++ b/lib/stdlib/src/supervisor.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -628,7 +628,7 @@ handle_info({'EXIT', Pid, Reason}, State) ->
     end;
 
 handle_info(Msg, State) ->
-    error_logger:error_msg("Supervisor received unexpected message: ~p~n", 
+    error_logger:error_msg("Supervisor received unexpected message: ~tp~n",
 			   [Msg]),
     {noreply, State}.
 
diff --git a/lib/stdlib/test/Makefile b/lib/stdlib/test/Makefile
index 72211332e9..523cb95065 100644
--- a/lib/stdlib/test/Makefile
+++ b/lib/stdlib/test/Makefile
@@ -36,6 +36,7 @@ MODULES= \
 	ets_tough_SUITE \
 	expand_test \
 	expand_test1 \
+	unicode_expand \
 	ExpandTestCaps \
 	ExpandTestCaps1 \
 	filelib_SUITE \
@@ -68,6 +69,7 @@ MODULES= \
 	sets_test_lib \
 	sofs_SUITE \
 	stdlib_SUITE \
+	stdlib_bench_SUITE \
 	string_SUITE \
 	supervisor_1 \
 	supervisor_2 \
@@ -145,7 +147,7 @@ release_spec: opt
 
 release_tests_spec: make_emakefile
 	$(INSTALL_DIR) "$(RELSYSDIR)"
-	$(INSTALL_DATA) stdlib.spec $(EMAKEFILE) \
+	$(INSTALL_DATA) stdlib.spec stdlib_bench.spec $(EMAKEFILE) \
 		$(ERL_FILES) $(COVERFILE) "$(RELSYSDIR)"
 	chmod -R u+w "$(RELSYSDIR)"
 	@tar cf - *_SUITE_data | (cd "$(RELSYSDIR)"; tar xf -)
diff --git a/lib/stdlib/test/edlin_expand_SUITE.erl b/lib/stdlib/test/edlin_expand_SUITE.erl
index 1f694ea549..5c2b1965ba 100644
--- a/lib/stdlib/test/edlin_expand_SUITE.erl
+++ b/lib/stdlib/test/edlin_expand_SUITE.erl
@@ -22,7 +22,7 @@
 	 init_per_testcase/2, end_per_testcase/2,
 	 init_per_group/2,end_per_group/2]).
 -export([normal/1, quoted_fun/1, quoted_module/1, quoted_both/1, erl_1152/1,
-         erl_352/1]).
+         erl_352/1, unicode/1]).
 
 -include_lib("common_test/include/ct.hrl").
 
@@ -37,7 +37,8 @@ suite() ->
      {timetrap,{minutes,1}}].
 
 all() -> 
-    [normal, quoted_fun, quoted_module, quoted_both, erl_1152, erl_352].
+    [normal, quoted_fun, quoted_module, quoted_both, erl_1152, erl_352,
+     unicode].
 
 groups() -> 
     [].
@@ -150,6 +151,7 @@ quoted_both(Config) when is_list(Config) ->
     {yes,"weird-fun-name'()",[]} = do_expand("'ExpandTestCaps1':'#"),
     ok.
 
+%% Note: pull request #1152.
 erl_1152(Config) when is_list(Config) ->
     "\n"++"foo"++"    "++[1089]++_ = do_format(["foo",[1089]]),
     ok.
@@ -226,6 +228,26 @@ check_trailing([I|Str], ArityStr, Suffix, Dots) ->
             Rest =:= Suffix
     end.
 
+unicode(Config) when is_list(Config) ->
+    {module,unicode_expand} = c:l('unicode_expand'),
+    {no,[],[{"'кlирилли́ческий атом'",0},
+            {"'кlирилли́ческий атом'",1},
+            {"'кlирилли́ческий атомB'",1},
+            {"module_info",0},
+            {"module_info",1}]} = do_expand("unicode_expand:"),
+    {yes,"рилли́ческий атом", []} = do_expand("unicode_expand:'кlи"),
+    {yes,"еский атом", []} = do_expand("unicode_expand:'кlирилли́ч"),
+    {yes,"(",[]} = do_expand("unicode_expand:'кlирилли́ческий атомB'"),
+    "\n'кlирилли́ческий атом'/0   'кlирилли́ческий атом'/1   "
+    "'кlирилли́ческий атомB'/1  \nmodule_info/0             "
+    "module_info/1             \n" =
+        do_format([{"'кlирилли́ческий атом'",0},
+                   {"'кlирилли́ческий атом'",1},
+                   {"'кlирилли́ческий атомB'",1},
+                   {"module_info",0},
+                   {"module_info",1}]),
+    ok.
+
 do_expand(String) ->
     edlin_expand:expand(lists:reverse(String)).
 
diff --git a/lib/stdlib/test/erl_internal_SUITE.erl b/lib/stdlib/test/erl_internal_SUITE.erl
index 789a9d4363..7d9df1f989 100644
--- a/lib/stdlib/test/erl_internal_SUITE.erl
+++ b/lib/stdlib/test/erl_internal_SUITE.erl
@@ -80,7 +80,7 @@ callbacks(application) ->
 callbacks(gen_server) ->
     [{init,1}, {handle_call,3}, {handle_cast,2},
      {handle_info,2}, {terminate,2}, {code_change,3},
-     {format_status,2}];
+     {format_status,2}, {handle_continue, 2}];
 callbacks(gen_fsm) ->
     [{init,1}, {handle_event,3}, {handle_sync_event,4},
      {handle_info,3}, {terminate,3}, {code_change,4},
@@ -101,7 +101,7 @@ callbacks(supervisor) ->
 optional_callbacks(application) ->
     [];
 optional_callbacks(gen_server) ->
-    [{handle_info, 2}, {terminate, 2}, {code_change, 3}, {format_status, 2}];
+    [{handle_info, 2}, {handle_continue, 2}, {terminate, 2}, {code_change, 3}, {format_status, 2}];
 optional_callbacks(gen_fsm) ->
     [{handle_info, 3}, {terminate, 3}, {code_change, 4}, {format_status, 2}];
 optional_callbacks(gen_event) ->
diff --git a/lib/stdlib/test/erl_lint_SUITE.erl b/lib/stdlib/test/erl_lint_SUITE.erl
index cb1cceb8db..b76bece07f 100644
--- a/lib/stdlib/test/erl_lint_SUITE.erl
+++ b/lib/stdlib/test/erl_lint_SUITE.erl
@@ -4104,7 +4104,27 @@ get_stacktrace(Config) ->
            [],
            {warnings,[{4,erl_lint,{get_stacktrace,wrong_part_of_try}},
                       {13,erl_lint,{get_stacktrace,after_try}},
-                      {22,erl_lint,{get_stacktrace,after_try}}]}}],
+                      {22,erl_lint,{get_stacktrace,after_try}}]}},
+          {multiple_catch_clauses,
+           <<"maybe_error(Arg) ->
+                try 5 / Arg
+                catch
+                    error:badarith ->
+                        _Stacktrace = erlang:get_stacktrace(),
+                        try io:nl()
+                        catch
+                            error:_ -> io:format('internal error')
+                        end;
+                    error:badarg ->
+                        _Stacktrace = erlang:get_stacktrace(),
+                        try io:format(qwe)
+                        catch
+                            error:_ -> io:format('internal error')
+                        end
+                end.
+             ">>,
+           [],
+           []}],
 
     run(Config, Ts),
     ok.
diff --git a/lib/stdlib/test/error_logger_h_SUITE.erl b/lib/stdlib/test/error_logger_h_SUITE.erl
index 30f96e0522..1f2a9fda0b 100644
--- a/lib/stdlib/test/error_logger_h_SUITE.erl
+++ b/lib/stdlib/test/error_logger_h_SUITE.erl
@@ -162,7 +162,7 @@ tty_log_open(Log) ->
 		{ok,D} -> D;
 		_ -> unlimited
 	    end,
-    error_logger:add_report_handler(?MODULE, {Fd,Depth}),
+    error_logger:add_report_handler(?MODULE, {Fd,Depth,latin1}),
     Fd.
 
 tty_log_close() ->
@@ -393,11 +393,11 @@ dl_format_1([], [], _, Facc, Aacc) ->
 %%% calling error_logger_tty_h:write_event/2.
 %%%
 
-init({_,_}=St) ->
+init({_,_,_}=St) ->
     {ok,St}.
 
-handle_event(Event, {Fd,Depth}=St) ->
-    case error_logger_tty_h:write_event(tag_event(Event), io_lib, Depth) of
+handle_event(Event, {Fd,Depth,Enc}=St) ->
+    case error_logger_tty_h:write_event(tag_event(Event), io_lib, {Depth,Enc}) of
 	ok ->
 	    ok;
 	Str when is_list(Str) ->
@@ -405,7 +405,7 @@ handle_event(Event, {Fd,Depth}=St) ->
     end,
     {ok,St}.
 
-terminate(_Reason, {Fd,_}) ->
+terminate(_Reason, {Fd,_,_}) ->
     ok = file:close(Fd),
     [].
 
diff --git a/lib/stdlib/test/filelib_SUITE.erl b/lib/stdlib/test/filelib_SUITE.erl
index c94821bc75..1236fe45f4 100644
--- a/lib/stdlib/test/filelib_SUITE.erl
+++ b/lib/stdlib/test/filelib_SUITE.erl
@@ -120,7 +120,7 @@ wcc(Wc, Error) ->
 do_wildcard_1(Dir, Wcf0) ->
     do_wildcard_2(Dir, Wcf0),
     Wcf = fun(Wc0) ->
-		  Wc = filename:join(Dir, Wc0),
+		  Wc = Dir ++ "/" ++ Wc0,
 		  L = Wcf0(Wc),
 		  [subtract_dir(N, Dir) || N <- L]
 	  end,
@@ -268,8 +268,37 @@ do_wildcard_9(Dir, Wcf) ->
     %% Cleanup.
     del(Files),
     [ok = file:del_dir(D) || D <- lists:reverse(Dirs)],
-    ok.
+    do_wildcard_10(Dir, Wcf).
+
+%% ERL-451/OTP-14577: Escape characters using \\.
+do_wildcard_10(Dir, Wcf) ->
+    All0 = ["{abc}","abc","def","---","z--","@a,b","@c"],
+    All = case os:type() of
+              {unix,_} ->
+                  %% '?' is allowed in file names on Unix, but
+                  %% not on Windows.
+                  ["?q"|All0];
+              _ ->
+                  All0
+          end,
+    Files = mkfiles(lists:reverse(All), Dir),
+
+    ["{abc}"] = Wcf("\\{a*"),
+    ["{abc}"] = Wcf("\\{abc}"),
+    ["abc","def","z--"] = Wcf("[a-z]*"),
+    ["---","abc","z--"] = Wcf("[a\\-z]*"),
+    ["@a,b","@c"] = Wcf("@{a\\,b,c}"),
+    ["@c"] = Wcf("@{a,b,c}"),
+
+    case os:type() of
+        {unix,_} ->
+            ["?q"] = Wcf("\\?q");
+        _ ->
+            [] = Wcf("\\?q")
+    end,
 
+    del(Files),
+    ok.
 
 fold_files(Config) when is_list(Config) ->
     Dir = filename:join(proplists:get_value(priv_dir, Config), "fold_files"),
diff --git a/lib/stdlib/test/filename_SUITE.erl b/lib/stdlib/test/filename_SUITE.erl
index fc77593bb8..f284eb1ed6 100644
--- a/lib/stdlib/test/filename_SUITE.erl
+++ b/lib/stdlib/test/filename_SUITE.erl
@@ -107,6 +107,17 @@ absname(Config) when is_list(Config) ->
             [Drive|":/erlang/src"] = filename:absname([Drive|":erlang/src"]),
             "a:/erlang" = filename:absname("a:erlang"),
 
+            "//foo" = filename:absname("//foo"),
+            "//foo/bar" = filename:absname("//foo/bar"),
+            "//foo/\bar" = filename:absname("//foo/\bar"),
+            "//foo/bar/baz" = filename:absname("//foo/bar\\baz"),
+            "//foo/bar/baz" = filename:absname("//foo\\bar/baz"),
+            "//foo" = filename:absname("\\\\foo"),
+            "//foo/bar" = filename:absname("\\\\foo/bar"),
+            "//foo/\bar" = filename:absname("\\\\foo/\bar"),
+            "//foo/bar/baz" = filename:absname("\\\\foo/bar\\baz"),
+            "//foo/bar/baz" = filename:absname("\\\\foo\\bar/baz"),
+
             file:set_cwd(Cwd),
             ok;
         {unix, _} ->
@@ -167,6 +178,23 @@ absname_2(Config) when is_list(Config) ->
                                                       [Drive|":/"]),
             "a:/erlang" = filename:absname("a:erlang", [Drive|":/"]),
 
+            "//foo" = filename:absname("foo","//"),
+            "//foo/bar" = filename:absname("foo/bar", "//"),
+            "//foo/bar" = filename:absname("bar", "//foo"),
+            "//bar" = filename:absname("/bar", "//foo"),
+            "//foo/bar/baz" = filename:absname("bar/baz", "//foo"),
+            "//bar/baz" = filename:absname("//bar/baz", "//foo"),
+            "//\bar" = filename:absname("/\bar", "//foo"),
+            "//foo" = filename:absname("foo","\\\\"),
+            "//foo/bar" = filename:absname("foo/bar", "\\\\"),
+            "//foo/bar" = filename:absname("bar", "\\\\foo"),
+            "//bar" = filename:absname("/bar", "\\\\foo"),
+            "//foo/bar/baz" = filename:absname("bar/baz", "\\\\foo"),
+            "//bar/baz" = filename:absname("\\\\bar/baz", "\\\\foo"),
+            "//\bar" = filename:absname("/\bar", "\\\\foo"),
+            "//bar/baz" = filename:absname("\\\\bar/baz", "//foo"),
+            "//bar/baz" = filename:absname("//bar/baz", "\\\\foo"),
+
             ok;
         _ ->
             "/usr/foo" = filename:absname(foo, "/usr"),
@@ -244,6 +272,18 @@ dirname(Config) when is_list(Config) ->
             "A:usr" = filename:dirname("A:usr/foo.erl"),
             "/usr" = filename:dirname("\\usr\\foo.erl"),
             "/" = filename:dirname("\\usr"),
+            "//foo/bar" = filename:dirname("//foo/bar/baz.erl"),
+            "//foo/\bar" = filename:dirname("//foo/\bar/baz.erl"),
+            "//foo/bar" = filename:dirname("//foo\\bar/baz.erl"),
+            "//foo/bar" = filename:dirname("\\\\foo/bar/baz.erl"),
+            "//foo/\bar" = filename:dirname("\\\\foo/\bar/baz.erl"),
+            "//foo/bar" = filename:dirname("\\\\foo\\bar/baz.erl"),
+            "//foo" = filename:dirname("//foo/baz.erl"),
+            "//foo" = filename:dirname("//foo/\baz.erl"),
+            "//foo" = filename:dirname("//foo\\baz.erl"),
+            "//foo" = filename:dirname("\\\\foo/baz.erl"),
+            "//foo" = filename:dirname("\\\\foo/\baz.erl"),
+            "//foo" = filename:dirname("\\\\foo\\baz.erl"),
             "A:" = filename:dirname("A:");
         _ -> true
     end,
@@ -289,7 +329,6 @@ join(Config) when is_list(Config) ->
     %% join/1 and join/2 (OTP-12158) by using help function
     %% filename_join/2.
     "/" = filename:join(["/"]),
-    "/" = filename:join(["//"]),
     "usr/foo.erl" = filename_join("usr","foo.erl"),
     "/src/foo.erl" = filename_join(usr, "/src/foo.erl"),
     "/src/foo.erl" = filename_join("/src/",'foo.erl'),
@@ -301,7 +340,6 @@ join(Config) when is_list(Config) ->
     "a/b/c/d/e/f/g" = filename_join("a//b/c/", "d//e/f/g"),
     "a/b/c/d/e/f/g" = filename_join("a//b/c", "d//e/f/g"),
     "/d/e/f/g" = filename_join("a//b/c", "/d//e/f/g"),
-    "/d/e/f/g" = filename:join("a//b/c", "//d//e/f/g"),
 
     "foo/bar" = filename_join([$f,$o,$o,$/,[]], "bar"),
 
@@ -332,6 +370,7 @@ join(Config) when is_list(Config) ->
 
     case os:type() of
         {win32, _} ->
+            "//" = filename:join(["//"]),
             "d:/" = filename:join(["D:/"]),
             "d:/" = filename:join(["D:\\"]),
             "d:/abc" = filename_join("D:/", "abc"),
@@ -345,8 +384,35 @@ join(Config) when is_list(Config) ->
             "c:/usr/foo.erl" = filename:join(["A:","C:/usr","foo.erl"]),
             "c:usr/foo.erl" = filename:join(["A:","C:usr","foo.erl"]),
             "d:/foo" = filename:join([$D, $:, $/, []], "foo"),
+            "//" = filename:join("\\\\", ""),
+            "//foo" = filename:join("\\\\", "foo"),
+            "//foo/bar" = filename:join("\\\\", "foo\\\\bar"),
+            "//foo/bar/baz" = filename:join("\\\\foo", "bar\\\\baz"),
+            "//foo/bar/baz" = filename:join("\\\\foo", "bar\\baz"),
+            "//foo/bar/baz" = filename:join("\\\\foo\\bar", baz),
+            "//foo/\bar/baz" = filename:join("\\\\foo/\bar", baz),
+            "//foo/bar/baz" = filename:join("\\\\foo/bar", baz),
+            "//bar/baz" = filename:join("\\\\foo", "\\\\bar\\baz"),
+            "//bar/baz" = filename:join("\\\\foo", "//bar\\baz"),
+            "//bar/baz" = filename:join("\\\\foo", "//bar/baz"),
+            "//bar/baz" = filename:join("\\\\foo", "\\\\bar/baz"),
+            "//d/e/f/g" = filename:join("a//b/c", "//d//e/f/g"),
+            "//" = filename:join("//", ""),
+            "//foo" = filename:join("//", "foo"),
+            "//foo/bar" = filename:join("//", "foo\\\\bar"),
+            "//foo/bar/baz" = filename:join("//foo", "bar\\\\baz"),
+            "//foo/bar/baz" = filename:join("//foo", "bar\\baz"),
+            "//foo/bar/baz" = filename:join("//foo\\bar", baz),
+            "//foo/\bar/baz" = filename:join("//foo/\bar", baz),
+            "//foo/bar/baz" = filename:join("//foo/bar", baz),
+            "//bar/baz" = filename:join("//foo", "\\\\bar\\baz"),
+            "//bar/baz" = filename:join("//foo", "//bar\\baz"),
+            "//bar/baz" = filename:join("//foo", "//bar/baz"),
+            "//bar/baz" = filename:join("//foo", "\\\\bar/baz"),
             ok;
         _ ->
+            "/" = filename:join(["//"]),
+            "/d/e/f/g" = filename:join("a//b/c", "//d//e/f/g"),
             ok
     end.
 
@@ -402,6 +468,16 @@ split(Config) when is_list(Config) ->
                 filename:split("a:\\msdev\\include"),
             ["a:","msdev","include"] =
                 filename:split("a:msdev\\include"),
+            ["//","foo"] =
+                filename:split("\\\\foo"),
+            ["//","foo"] =
+                filename:split("//foo"),
+            ["//","foo","bar"] =
+                filename:split("\\\\foo\\\\bar"),
+            ["//","foo","baz"] =
+                filename:split("\\\\foo\\baz"),
+            ["//","foo","baz"] =
+                filename:split("//foo\\baz"),
             ok;
         _ ->
 	    ok
@@ -630,7 +706,6 @@ extension_bin(Config) when is_list(Config) ->
     
 join_bin(Config) when is_list(Config) ->
     <<"/">> = filename:join([<<"/">>]),
-    <<"/">> = filename:join([<<"//">>]),
     <<"usr/foo.erl">> = filename:join(<<"usr">>,<<"foo.erl">>),
     <<"/src/foo.erl">> = filename:join(usr, <<"/src/foo.erl">>),
     <<"/src/foo.erl">> = filename:join([<<"/src/">>,'foo.erl']),
@@ -642,7 +717,6 @@ join_bin(Config) when is_list(Config) ->
     <<"a/b/c/d/e/f/g">> = filename:join([<<"a//b/c/">>, <<"d//e/f/g">>]),
     <<"a/b/c/d/e/f/g">> = filename:join([<<"a//b/c">>, <<"d//e/f/g">>]),
     <<"/d/e/f/g">> = filename:join([<<"a//b/c">>, <<"/d//e/f/g">>]),
-    <<"/d/e/f/g">> = filename:join([<<"a//b/c">>, <<"//d//e/f/g">>]),
 
     <<"foo/bar">> = filename:join([$f,$o,$o,$/,[]], <<"bar">>),
 
@@ -695,6 +769,7 @@ join_bin(Config) when is_list(Config) ->
 
     case os:type() of
         {win32, _} ->
+            <<"//">> = filename:join([<<"//">>]),
             <<"d:/">> = filename:join([<<"D:/">>]),
             <<"d:/">> = filename:join([<<"D:\\">>]),
             <<"d:/abc">> = filename:join([<<"D:/">>, <<"abc">>]),
@@ -708,8 +783,35 @@ join_bin(Config) when is_list(Config) ->
             <<"c:/usr/foo.erl">> = filename:join([<<"A:">>,<<"C:/usr">>,<<"foo.erl">>]),
             <<"c:usr/foo.erl">> = filename:join([<<"A:">>,<<"C:usr">>,<<"foo.erl">>]),
             <<"d:/foo">> = filename:join([$D, $:, $/, []], <<"foo">>),
+            <<"//">> = filename:join(<<"\\\\">>, <<"">>),
+            <<"//foo">> = filename:join(<<"\\\\">>, <<"foo">>),
+            <<"//foo/bar">> = filename:join(<<"\\\\">>, <<"foo\\\\bar">>),
+            <<"//foo/bar/baz">> = filename:join(<<"\\\\foo">>, <<"bar\\\\baz">>),
+            <<"//bar/baz">> = filename:join(<<"\\\\foo">>, <<"\\\\bar\\baz">>),
+            <<"//foo/bar/baz">> = filename:join(<<"\\\\foo\\bar">>, baz),
+            <<"//foo/\bar/baz">> = filename:join(<<"\\\\foo/\bar">>, baz),
+            <<"//foo/bar/baz">> = filename:join(<<"\\\\foo/bar">>, baz),
+            <<"//bar/baz">> = filename:join(<<"\\\\foo">>, <<"\\\\bar\\baz">>),
+            <<"//bar/baz">> = filename:join(<<"\\\\foo">>, <<"//bar\\baz">>),
+            <<"//bar/baz">> = filename:join(<<"\\\\foo">>, <<"//bar/baz">>),
+            <<"//bar/baz">> = filename:join(<<"\\\\foo">>, <<"\\\\bar/baz">>),
+            <<"//d/e/f/g">> = filename:join([<<"a//b/c">>, <<"//d//e/f/g">>]),
+            <<"//">> = filename:join(<<"//">>, <<"">>),
+            <<"//foo">> = filename:join(<<"//">>, <<"foo">>),
+            <<"//foo/bar">> = filename:join(<<"//">>, <<"foo\\\\bar">>),
+            <<"//foo/bar/baz">> = filename:join(<<"//foo">>, <<"bar\\\\baz">>),
+            <<"//bar/baz">> = filename:join(<<"//foo">>, <<"\\\\bar\\baz">>),
+            <<"//foo/bar/baz">> = filename:join(<<"//foo\\bar">>, baz),
+            <<"//foo/\bar/baz">> = filename:join(<<"//foo/\bar">>, baz),
+            <<"//foo/bar/baz">> = filename:join(<<"//foo/bar">>, baz),
+            <<"//bar/baz">> = filename:join(<<"//foo">>, <<"\\\\bar\\baz">>),
+            <<"//bar/baz">> = filename:join(<<"//foo">>, <<"//bar\\baz">>),
+            <<"//bar/baz">> = filename:join(<<"//foo">>, <<"//bar/baz">>),
+            <<"//bar/baz">> = filename:join(<<"//foo">>, <<"\\\\bar/baz">>),
             ok;
         _ ->
+            <<"/">> = filename:join([<<"//">>]),
+            <<"/d/e/f/g">> = filename:join([<<"a//b/c">>, <<"//d//e/f/g">>]),
             ok
     end.
 
@@ -756,6 +858,16 @@ split_bin(Config) when is_list(Config) ->
                 filename:split(<<"a:\\msdev\\include">>),
             [<<"a:">>,<<"msdev">>,<<"include">>] =
                 filename:split(<<"a:msdev\\include">>),
+            [<<"//">>,<<"foo">>] =
+                filename:split(<<"\\\\foo">>),
+            [<<"//">>,<<"foo">>] =
+                filename:split(<<"//foo">>),
+            [<<"//">>,<<"foo">>,<<"bar">>] =
+                filename:split(<<"\\\\foo\\\\bar">>),
+            [<<"//">>,<<"foo">>,<<"baz">>] =
+                filename:split(<<"\\\\foo\\baz">>),
+            [<<"//">>,<<"foo">>,<<"baz">>] =
+                filename:split(<<"//foo\\baz">>),
             ok;
         _ ->
             ok
diff --git a/lib/stdlib/test/gen_server_SUITE.erl b/lib/stdlib/test/gen_server_SUITE.erl
index 2e9dc4d4fb..2bc220fef2 100644
--- a/lib/stdlib/test/gen_server_SUITE.erl
+++ b/lib/stdlib/test/gen_server_SUITE.erl
@@ -27,7 +27,7 @@
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2]).
 -export([start/1, crash/1, call/1, cast/1, cast_fast/1,
-	 info/1, abcast/1, multicall/1, multicall_down/1,
+	 continue/1, info/1, abcast/1, multicall/1, multicall_down/1,
 	 call_remote1/1, call_remote2/1, call_remote3/1,
 	 call_remote_n1/1, call_remote_n2/1, call_remote_n3/1, spec_init/1,
 	 spec_init_local_registered_parent/1, 
@@ -37,7 +37,8 @@
 	 get_state/1, replace_state/1, call_with_huge_message_queue/1,
 	 undef_handle_call/1, undef_handle_cast/1, undef_handle_info/1,
 	 undef_init/1, undef_code_change/1, undef_terminate1/1,
-	 undef_terminate2/1, undef_in_terminate/1, undef_in_handle_info/1
+	 undef_terminate2/1, undef_in_terminate/1, undef_in_handle_info/1,
+	 undef_handle_continue/1
 	]).
 
 -export([stop1/1, stop2/1, stop3/1, stop4/1, stop5/1, stop6/1, stop7/1,
@@ -52,7 +53,7 @@
 
 
 %% The gen_server behaviour
--export([init/1, handle_call/3, handle_cast/2,
+-export([init/1, handle_call/3, handle_cast/2, handle_continue/2,
 	 handle_info/2, code_change/3, terminate/2, format_status/2]).
 
 suite() ->
@@ -61,7 +62,7 @@ suite() ->
 
 all() -> 
     [start, {group,stop}, crash, call, cast, cast_fast, info, abcast,
-     multicall, multicall_down, call_remote1, call_remote2,
+     continue, multicall, multicall_down, call_remote1, call_remote2,
      call_remote3, call_remote_n1, call_remote_n2,
      call_remote_n3, spec_init,
      spec_init_local_registered_parent,
@@ -76,7 +77,7 @@ groups() ->
     [{stop, [],
       [stop1, stop2, stop3, stop4, stop5, stop6, stop7, stop8, stop9, stop10]},
      {undef_callbacks, [],
-      [undef_handle_call, undef_handle_cast, undef_handle_info,
+      [undef_handle_call, undef_handle_cast, undef_handle_info, undef_handle_continue,
        undef_init, undef_code_change, undef_terminate1, undef_terminate2]}].
 
 
@@ -458,6 +459,47 @@ call(Config) when is_list(Config) ->
     ok.
 
 %% --------------------------------------
+%% Test handle_continue.
+%% --------------------------------------
+
+continue(Config) when is_list(Config) ->
+    {ok, Pid} = gen_server:start_link(gen_server_SUITE, {continue, self()}, []),
+    [{Pid, continue}, {Pid, after_continue}] = read_replies(Pid),
+
+    gen_server:call(Pid, {continue_reply, self()}),
+    [{Pid, continue}, {Pid, after_continue}] = read_replies(Pid),
+
+    gen_server:call(Pid, {continue_noreply, self()}),
+    [{Pid, continue}, {Pid, after_continue}] = read_replies(Pid),
+
+    gen_server:cast(Pid, {continue_noreply, self()}),
+    [{Pid, continue}, {Pid, after_continue}] = read_replies(Pid),
+
+    Pid ! {continue_noreply, self()},
+    [{Pid, continue}, {Pid, after_continue}] = read_replies(Pid),
+
+    Pid ! {continue_continue, self()},
+    [{Pid, before_continue}, {Pid, continue}, {Pid, after_continue}] = read_replies(Pid),
+
+    Ref = monitor(process, Pid),
+    Pid ! continue_stop,
+    verify_down_reason(Ref, Pid, normal).
+
+read_replies(Pid) ->
+    receive
+	{Pid, ack} -> read_replies()
+    after
+	1000 -> ct:fail({continue, ack})
+    end.
+
+read_replies() ->
+    receive
+	Msg -> [Msg | read_replies()]
+    after
+	0 -> []
+    end.
+
+%% --------------------------------------
 %% Test call to nonexisting processes on remote nodes
 %% --------------------------------------
 
@@ -1346,7 +1388,7 @@ echo_loop() ->
 %% Test the default implementation of terminate if the callback module
 %% does not export it
 undef_terminate1(Config) when is_list(Config) ->
-    {ok, Server} = gen_server:start(oc_server, [], []),
+    {ok, Server} = oc_server:start(),
     MRef = monitor(process, Server),
     ok = gen_server:stop(Server),
     ok = verify_down_reason(MRef, Server, normal).
@@ -1354,7 +1396,7 @@ undef_terminate1(Config) when is_list(Config) ->
 %% Test the default implementation of terminate if the callback module
 %% does not export it
 undef_terminate2(Config) when is_list(Config) ->
-    {ok, Server} = gen_server:start(oc_server, [], []),
+    {ok, Server} = oc_server:start(),
     MRef = monitor(process, Server),
     ok = gen_server:stop(Server, {error, test}, infinity),
     ok = verify_down_reason(MRef, Server, {error, test}).
@@ -1377,7 +1419,7 @@ undef_init(_Config) ->
 %% The upgrade should fail if code_change is expected in the callback module
 %% but not exported, but the server should continue with the old code
 undef_code_change(Config) when is_list(Config) ->
-    {ok, Server} = gen_server:start(oc_server, [], []),
+    {ok, Server} = oc_server:start(),
     {error, {'EXIT', {undef, [{oc_server, code_change, [_, _, _], _}|_]}}}
         = fake_upgrade(Server, ?MODULE),
     true = is_process_alive(Server).
@@ -1385,7 +1427,7 @@ undef_code_change(Config) when is_list(Config) ->
 %% The server should crash if the handle_call callback is
 %% not exported in the callback module
 undef_handle_call(_Config) ->
-    {ok, Server} = gen_server:start(oc_server, [], []),
+    {ok, Server} = oc_server:start(),
     try
         gen_server:call(Server, call_msg),
         ct:fail(should_crash)
@@ -1397,17 +1439,25 @@ undef_handle_call(_Config) ->
 %% The server should crash if the handle_cast callback is
 %% not exported in the callback module
 undef_handle_cast(_Config) ->
-    {ok, Server} = gen_server:start(oc_server, [], []),
+    {ok, Server} = oc_server:start(),
     MRef = monitor(process, Server),
     gen_server:cast(Server, cast_msg),
     verify_undef_down(MRef, Server, oc_server, handle_cast),
     ok.
 
+%% The server should crash if the handle_continue callback is
+%% not exported in the callback module
+undef_handle_continue(_Config) ->
+    {ok, Server} = oc_server:start(continue),
+    MRef = monitor(process, Server),
+    verify_undef_down(MRef, Server, oc_server, handle_continue),
+    ok.
+
 %% The server should log but not crash if the handle_info callback is
 %% calling an undefined function
 undef_handle_info(Config) when is_list(Config) ->
     error_logger_forwarder:register(),
-    {ok, Server} = gen_server:start(oc_server, [], []),
+    {ok, Server} = oc_server:start(),
     Server ! hej,
     wait_until_processed(Server, hej, 10),
     true = is_process_alive(Server),
@@ -1570,8 +1620,11 @@ init(hibernate) ->
 init(sleep) ->
     ct:sleep(1000),
     {ok, []};
+init({continue, Pid}) ->
+    self() ! {after_continue, Pid},
+    {ok, [], {continue, {message, Pid}}};
 init({state,State}) ->
-    {ok, State}.
+    {ok,State}.
 
 handle_call(started_p, _From, State) ->
     io:format("FROZ"),
@@ -1604,6 +1657,12 @@ handle_call(shutdown_reason, _From, _State) ->
 handle_call({call_undef_fun, Mod, Fun}, _From, State) ->
     Mod:Fun(),
     {reply, ok, State};
+handle_call({continue_reply, Pid}, _From, State) ->
+    self() ! {after_continue, Pid},
+    {reply, ok, State, {continue, {message, Pid}}};
+handle_call({continue_noreply, Pid}, From, State) ->
+    self() ! {after_continue, Pid},
+    {noreply, State, {continue, {message, Pid, From}}};
 handle_call(stop_shutdown_reason, _From, State) ->
     {stop,{shutdown,stop_reason},State}.
 
@@ -1620,6 +1679,9 @@ handle_cast(hibernate_later, _State) ->
 handle_cast({call_undef_fun, Mod, Fun}, State) ->
     Mod:Fun(),
     {noreply, State};
+handle_cast({continue_noreply, Pid}, State) ->
+    self() ! {after_continue, Pid},
+    {noreply, State, {continue, {message, Pid}}};
 handle_cast({From, stop}, State) ->
     io:format("BAZ"),
     {stop, {From,stopped}, State}.
@@ -1657,9 +1719,34 @@ handle_info(continue, From) ->
     {noreply, []};
 handle_info({From, stop}, State) ->
     {stop, {From,stopped_info}, State};
+handle_info({after_continue, Pid}, State) ->
+    Pid ! {self(), after_continue},
+    Pid ! {self(), ack},
+    {noreply, State};
+handle_info({continue_noreply, Pid}, State) ->
+    self() ! {after_continue, Pid},
+    {noreply, State, {continue, {message, Pid}}};
+handle_info({continue_continue, Pid}, State) ->
+    {noreply, State, {continue, {continue, Pid}}};
+handle_info(continue_stop, State) ->
+    {noreply, State, {continue, stop}};
 handle_info(_Info, State) ->
     {noreply, State}.
 
+handle_continue({continue, Pid}, State) ->
+    Pid ! {self(), before_continue},
+    self() ! {after_continue, Pid},
+    {noreply, State, {continue, {message, Pid}}};
+handle_continue(stop, State) ->
+    {stop, normal, State};
+handle_continue({message, Pid}, State) ->
+    Pid ! {self(), continue},
+    {noreply, State};
+handle_continue({message, Pid, From}, State) ->
+    Pid ! {self(), continue},
+    gen_server:reply(From, ok),
+    {noreply, State}.
+
 code_change(_OldVsn,
             {new, {undef_in_code_change, {Mod, Fun}}} = State,
             _Extra) ->
diff --git a/lib/stdlib/test/gen_server_SUITE_data/oc_server.erl b/lib/stdlib/test/gen_server_SUITE_data/oc_server.erl
index 4ba37987f3..7b92a49bf6 100644
--- a/lib/stdlib/test/gen_server_SUITE_data/oc_server.erl
+++ b/lib/stdlib/test/gen_server_SUITE_data/oc_server.erl
@@ -22,7 +22,7 @@
 -behaviour(gen_server).
 
 %% API
--export([start/0]).
+-export([start/0, start/1]).
 
 %% gen_server callbacks
 -export([init/1]).
@@ -30,8 +30,12 @@
 -record(state, {}).
 
 start() ->
-    gen_server:start({local, ?MODULE}, ?MODULE, [], []).
+    gen_server:start(?MODULE, ok, []).
 
-init([]) ->
-    {ok, #state{}}.
+start(continue) ->
+    gen_server:start(?MODULE, continue, []).
 
+init(ok) ->
+    {ok, #state{}};
+init(continue) ->
+    {ok, #state{}, {continue, continue}}.
diff --git a/lib/stdlib/test/id_transform_SUITE.erl b/lib/stdlib/test/id_transform_SUITE.erl
index 3d4ae1a189..186df41d3f 100644
--- a/lib/stdlib/test/id_transform_SUITE.erl
+++ b/lib/stdlib/test/id_transform_SUITE.erl
@@ -61,8 +61,13 @@ id_transform(Config) when is_list(Config) ->
 			"erl_id_trans.erl"]),
     {ok,erl_id_trans,Bin} = compile:file(File,[binary]),
     {module,erl_id_trans} = code:load_binary(erl_id_trans, File, Bin),
-    ct:timetrap({hours,1}),
-    run_in_test_suite().
+    case test_server:is_valgrind() of
+	false ->
+	    ct:timetrap({hours,1}),
+	    run_in_test_suite();
+	true ->
+	    {skip,"Valgrind (too slow)"}
+    end.
 
 run_in_test_suite() ->
     SuperDir = filename:dirname(filename:dirname(code:which(?MODULE))),
diff --git a/lib/stdlib/test/proc_lib_SUITE.erl b/lib/stdlib/test/proc_lib_SUITE.erl
index c4fafe82a4..7686889360 100644
--- a/lib/stdlib/test/proc_lib_SUITE.erl
+++ b/lib/stdlib/test/proc_lib_SUITE.erl
@@ -552,14 +552,17 @@ t_format(_Config) ->
 
 t_format() ->
     error_logger:add_report_handler(?MODULE, self()),
-    Pid = proc_lib:spawn(fun t_format_looper/0),
+    Pid = proc_lib:spawn(fun '\x{aaa}t_format_looper'/0),
     HugeData = gb_sets:from_list(lists:seq(1, 100)),
-    Pid ! {die,HugeData},
+    SomeData1 = list_to_atom([246]),
+    SomeData2 = list_to_atom([1024]),
+    Pid ! {SomeData1,SomeData2},
+    Pid ! {die,{HugeData,SomeData1,SomeData2}},
     Report = receive
 		 {crash_report, Pid, Report0} -> Report0
 	     end,
-    Usz = do_test_format(Report, unlimited),
-    Tsz = do_test_format(Report, 20),
+    Usz = do_test_format(Report, latin1, unlimited),
+    Tsz = do_test_format(Report, latin1, 20),
 
     if
 	Tsz >= Usz ->
@@ -568,6 +571,16 @@ t_format() ->
 	    ok
     end,
 
+    UszU = do_test_format(Report, unicode, unlimited),
+    TszU = do_test_format(Report, unicode, 20),
+
+    if
+	TszU >= UszU ->
+	    ct:fail(failed);
+	true ->
+	    ok
+    end,
+
     ok.
 
 t_format_arbitrary(_Config) ->
@@ -597,15 +610,19 @@ do_test_format(Report, Encoding, Depth) ->
     io:format("*** Depth = ~p, Encoding = ~p", [Depth, Encoding]),
     S0 = proc_lib:format(Report, Encoding, Depth),
     S = lists:flatten(S0),
-    io:put_chars(S),
+    case Encoding of
+        latin1 -> io:format("~s\n", [S]);
+        _ -> io:format("~ts\n", [S])
+    end,
     length(S).
 
-t_format_looper() ->
+'\x{aaa}t_format_looper'() ->
     receive
 	{die,Data} ->
 	    exit(Data);
-	_ ->
-	    t_format_looper()
+	M ->
+            put(M, M),
+	    '\x{aaa}t_format_looper'()
     end.
 
 %%-----------------------------------------------------------------
diff --git a/lib/stdlib/test/rand_SUITE.erl b/lib/stdlib/test/rand_SUITE.erl
index 432293b656..ef4f9faad9 100644
--- a/lib/stdlib/test/rand_SUITE.erl
+++ b/lib/stdlib/test/rand_SUITE.erl
@@ -29,11 +29,14 @@
 	 basic_stats_uniform_1/1, basic_stats_uniform_2/1,
 	 basic_stats_standard_normal/1,
 	 basic_stats_normal/1,
+         uniform_real_conv/1,
 	 plugin/1, measure/1,
 	 reference_jump_state/1, reference_jump_procdict/1]).
 
 -export([test/0, gen/1]).
 
+-export([uniform_real_gen/1, uniform_gen/2]).
+
 -include_lib("common_test/include/ct.hrl").
 
 -define(LOOP, 1000000).
@@ -46,7 +49,7 @@ all() ->
     [seed, interval_int, interval_float,
      api_eq,
      reference,
-     {group, basic_stats},
+     {group, basic_stats}, uniform_real_conv,
      plugin, measure,
      {group, reference_jump}
     ].
@@ -80,7 +83,7 @@ test() ->
       end, Tests).
 
 algs() ->
-    [exs64, exsplus, exsp, exrop, exs1024, exs1024s].
+    [exrop, exsp, exs1024s, exs64, exsplus, exs1024].
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
@@ -101,7 +104,7 @@ seed_1(Alg) ->
     _ = rand:uniform(),
     S00 = get(rand_seed),
     erase(),
-    _ = rand:uniform(),
+    _ = rand:uniform_real(),
     false = S00 =:= get(rand_seed), %% hopefully
 
     %% Choosing algo and seed
@@ -228,11 +231,13 @@ interval_float(Config) when is_list(Config) ->
 interval_float_1(0) -> ok;
 interval_float_1(N) ->
     X = rand:uniform(),
+    Y = rand:uniform_real(),
     if
-	0.0 =< X, X < 1.0 ->
+	0.0 =< X, X < 1.0, 0.0 < Y, Y < 1.0 ->
 	    ok;
 	true ->
-	    io:format("X=~p 0=<~p<1.0~n", [X,X]),
+	    io:format("X=~p 0.0=<~p<1.0~n", [X,X]),
+	    io:format("Y=~p 0.0<~p<1.0~n", [Y,Y]),
 	    exit({X, rand:export_seed()})
     end,
     interval_float_1(N-1).
@@ -334,7 +339,13 @@ basic_stats_normal(Config) when is_list(Config) ->
       IntendedMeanVariancePairs).
 
 basic_uniform_1(N, S0, Sum, A0) when N > 0 ->
-    {X,S} = rand:uniform_s(S0),
+    {X,S} =
+        case N band 1 of
+            0 ->
+                rand:uniform_s(S0);
+            1 ->
+                rand:uniform_real_s(S0)
+        end,
     I = trunc(X*100),
     A = array:set(I, 1+array:get(I,A0), A0),
     basic_uniform_1(N-1, S, Sum+X, A);
@@ -400,6 +411,137 @@ normal_s(Mean, Variance, State0) ->
     rand:normal_s(Mean, Variance, State0).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% White box test of the conversion to float
+
+uniform_real_conv(Config) when is_list(Config) ->
+    [begin
+%%         ct:pal("~13.16.0bx~3.16.0b: ~p~n", [M,E,Gen]),
+         uniform_real_conv_check(M, E, Gen)
+     end || {M, E, Gen} <- uniform_real_conv_data()],
+    uniform_real_scan(0),
+    uniform_real_scan(3).
+
+uniform_real_conv_data() ->
+    [{16#fffffffffffff,  -1, [16#3ffffffffffffff]},
+     {16#fffffffffffff,  -1, [16#3ffffffffffffe0]},
+     {16#ffffffffffffe,  -1, [16#3ffffffffffffdf]},
+     %%
+     {16#0000000000000,  -1, [16#200000000000000]},
+     {16#fffffffffffff,  -2, [16#1ffffffffffffff]},
+     {16#fffffffffffff,  -2, [16#1fffffffffffff0]},
+     {16#ffffffffffffe,  -2, [16#1ffffffffffffef]},
+     %%
+     {16#0000000000000,  -2, [16#100000000000000]},
+     {16#fffffffffffff,  -3, [16#0ffffffffffffff]},
+     {16#fffffffffffff,  -3, [16#0fffffffffffff8]},
+     {16#ffffffffffffe,  -3, [16#0fffffffffffff7]},
+     %%
+     {16#0000000000000,  -3, [16#080000000000000]},
+     {16#fffffffffffff,  -4, [16#07fffffffffffff]},
+     {16#fffffffffffff,  -4, [16#07ffffffffffffc]},
+     {16#ffffffffffffe,  -4, [16#07ffffffffffffb]},
+     %%
+     {16#0000000000000,  -4, [16#040000000000000]},
+     {16#fffffffffffff,  -5, [16#03fffffffffffff,16#3ffffffffffffff]},
+     {16#fffffffffffff,  -5, [16#03ffffffffffffe,16#200000000000000]},
+     {16#ffffffffffffe,  -5, [16#03fffffffffffff,16#1ffffffffffffff]},
+     {16#ffffffffffffe,  -5, [16#03fffffffffffff,16#100000000000000]},
+     %%
+     {16#0000000000001, -56, [16#000000000000007,16#00000000000007f]},
+     {16#0000000000001, -56, [16#000000000000004,16#000000000000040]},
+     {16#0000000000000, -57, [16#000000000000003,16#20000000000001f]},
+     {16#0000000000000, -57, [16#000000000000000,16#200000000000000]},
+     {16#fffffffffffff, -58, [16#000000000000003,16#1ffffffffffffff]},
+     {16#fffffffffffff, -58, [16#000000000000000,16#1fffffffffffff0]},
+     {16#ffffffffffffe, -58, [16#000000000000000,16#1ffffffffffffef]},
+     {16#ffffffffffffe, -58, [16#000000000000000,16#1ffffffffffffe0]},
+     %%
+     {16#0000000000000, -58, [16#000000000000000,16#10000000000000f]},
+     {16#0000000000000, -58, [16#000000000000000,16#100000000000000]},
+     {2#11001100000000000000000000000000000000000011000000011, % 53 bits
+      -1022,
+      [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, % 18 zeros
+       2#1100110000000000000000000000000000000000001 bsl 2, % 43 bits
+       2#1000000011 bsl (56-10+2)]}, % 10 bits
+     {0, -1, % 0.5 after retry
+      [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, % 18 zeros
+       2#111111111111111111111111111111111111111111 bsl 2, % 42 bits - retry
+       16#200000000000003]}]. % 0.5
+
+-define(UNIFORM_REAL_SCAN_PATTERN, (16#19000000000009)). % 53 bits
+-define(UNIFORM_REAL_SCAN_NUMBER, (1021)).
+
+uniform_real_scan_template(K) ->
+    <<0:?UNIFORM_REAL_SCAN_NUMBER,
+      ?UNIFORM_REAL_SCAN_PATTERN:53,K:2,0:1>>.
+
+uniform_real_scan(K) ->
+    Templ = uniform_real_scan_template(K),
+    N = ?UNIFORM_REAL_SCAN_NUMBER,
+    uniform_real_scan(Templ, N, K).
+
+uniform_real_scan(Templ, N, K) when 0 =< N ->
+    <<_:N/bits,T/bits>> = Templ,
+    Data = uniform_real_scan_data(T, K),
+    uniform_real_conv_check(
+      ?UNIFORM_REAL_SCAN_PATTERN, N - 1 - ?UNIFORM_REAL_SCAN_NUMBER, Data),
+    uniform_real_scan(Templ, N - 1, K);
+uniform_real_scan(_, _, _) ->
+    ok.
+
+uniform_real_scan_data(Templ, K) ->
+    case Templ of
+        <<X:56, T/bits>> ->
+            B = rand:bc64(X),
+            [(X bsl 2) bor K |
+             if
+                 53 =< B ->
+                     [];
+                 true ->
+                     uniform_real_scan_data(T, K)
+             end];
+        _ ->
+            <<X:56, _/bits>> = <<Templ/bits, 0:56>>,
+            [(X bsl 2) bor K]
+    end.
+
+uniform_real_conv_check(M, E, Gen) ->
+    <<F/float>> = <<0:1, (E + 16#3ff):11, M:52>>,
+    try uniform_real_gen(Gen) of
+        F -> F;
+        FF ->
+            ct:pal(
+              "~s =/= ~s: ~s~n",
+              [rand:float2str(FF), rand:float2str(F),
+               [["16#",integer_to_list(G,16),$\s]||G<-Gen]]),
+            ct:fail({neq, FF, F})
+    catch
+        Error:Reason ->
+            ct:pal(
+              "~w:~p ~s: ~s~n",
+              [Error, Reason, rand:float2str(F),
+               [["16#",integer_to_list(G,16),$\s]||G<-Gen]]),
+            ct:fail({Error, Reason, F, erlang:get_stacktrace()})
+    end.
+
+
+uniform_real_gen(Gen) ->
+    State = rand_state(Gen),
+    {F, {#{type := rand_SUITE_list},[]}} = rand:uniform_real_s(State),
+    F.
+
+uniform_gen(Range, Gen) ->
+    State = rand_state(Gen),
+    {N, {#{type := rand_SUITE_list},[]}} = rand:uniform_s(Range, State),
+    N.
+
+%% Loaded dice for white box tests
+rand_state(Gen) ->
+    {#{type => rand_SUITE_list, bits => 58, weak_low_bits => 1,
+       next => fun ([H|T]) -> {H, T} end},
+     Gen}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 %% Test that the user can write algorithms.
 plugin(Config) when is_list(Config) ->
@@ -459,213 +601,289 @@ measure(Config) ->
             {skip,{will_not_run_in_scaled_time,Scale}}
     end.
 
+-define(CHECK_UNIFORM_RANGE(Gen, Range, X, St),
+        case (Gen) of
+            {(X), (St)} when is_integer(X), 1 =< (X), (X) =< (Range) ->
+                St
+        end).
+-define(CHECK_UNIFORM(Gen, X, St),
+        case (Gen) of
+            {(X), (St)} when is_float(X), 0.0 =< (X), (X) < 1.0 ->
+                St
+        end).
+-define(CHECK_UNIFORM_NZ(Gen, X, St),
+        case (Gen) of
+            {(X), (St)} when is_float(X), 0.0 < (X), (X) =< 1.0 ->
+                St
+        end).
+-define(CHECK_NORMAL(Gen, X, St),
+        case (Gen) of
+            {(X), (St)} when is_float(X) ->
+                St
+        end).
+
 do_measure(_Config) ->
-    Algos =
+    Algs =
+        algs() ++
         try crypto:strong_rand_bytes(1) of
-            <<_>> -> [crypto64, crypto]
+            <<_>> -> [crypto64, crypto_cache, crypto]
         catch
             error:low_entropy -> [];
             error:undef -> []
-        end ++ algs(),
+        end,
     %%
-    ct:pal("RNG uniform integer performance~n",[]),
-    TMark1 =
+    ct:pal("~nRNG uniform integer range 10000 performance~n",[]),
+    _ =
         measure_1(
-          random,
           fun (_) -> 10000 end,
-          undefined,
-          fun (Range, State) ->
-                  {int, random:uniform_s(Range, State)}
-          end),
+          fun (State, Range, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM_RANGE(
+                               Mod:uniform_s(Range, St0), Range,
+                               X, St1)
+                    end,
+                    State)
+          end,
+          Algs),
+    %%
+    ct:pal("~nRNG uniform integer 32 bit performance~n",[]),
     _ =
-        [measure_1(
-           Algo,
-           fun (_) -> 10000 end,
-           TMark1,
-           fun (Range, State) ->
-                   {int, rand:uniform_s(Range, State)}
-           end) || Algo <- Algos],
+        measure_1(
+          fun (_) -> 1 bsl 32 end,
+          fun (State, Range, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM_RANGE(
+                               Mod:uniform_s(Range, St0), Range,
+                               X, St1)
+                    end,
+                    State)
+          end,
+          Algs),
     %%
     ct:pal("~nRNG uniform integer half range performance~n",[]),
-    HalfRangeFun = fun (State) -> half_range(State) end,
-    TMark2 =
-        measure_1(
-          random,
-          HalfRangeFun,
-          undefined,
-          fun (Range, State) ->
-                  {int, random:uniform_s(Range, State)}
-          end),
     _ =
-        [measure_1(
-           Algo,
-           HalfRangeFun,
-           TMark2,
-           fun (Range, State) ->
-                   {int, rand:uniform_s(Range, State)}
-           end) || Algo <- Algos],
-    %%
-    ct:pal("~nRNG uniform integer half range + 1  performance~n",[]),
-    HalfRangePlus1Fun = fun (State) -> half_range(State) + 1 end,
-    TMark3 =
         measure_1(
-          random,
-          HalfRangePlus1Fun,
-          undefined,
-          fun (Range, State) ->
-                  {int, random:uniform_s(Range, State)}
-          end),
+          fun (State) -> half_range(State) end,
+          fun (State, Range, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM_RANGE(
+                               Mod:uniform_s(Range, St0), Range,
+                               X, St1)
+                    end,
+                    State)
+          end,
+          Algs),
+    %%
+    ct:pal("~nRNG uniform integer half range + 1 performance~n",[]),
     _ =
-        [measure_1(
-           Algo,
-           HalfRangePlus1Fun,
-           TMark3,
-           fun (Range, State) ->
-                   {int, rand:uniform_s(Range, State)}
-           end) || Algo <- Algos],
+        measure_1(
+          fun (State) -> half_range(State) + 1 end,
+          fun (State, Range, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM_RANGE(
+                               Mod:uniform_s(Range, St0), Range,
+                               X, St1)
+                    end,
+                    State)
+          end,
+          Algs),
     %%
     ct:pal("~nRNG uniform integer full range - 1 performance~n",[]),
-    FullRangeMinus1Fun = fun (State) -> (half_range(State) bsl 1) - 1 end,
-    TMark4 =
-        measure_1(
-          random,
-          FullRangeMinus1Fun,
-          undefined,
-          fun (Range, State) ->
-                  {int, random:uniform_s(Range, State)}
-          end),
     _ =
-        [measure_1(
-           Algo,
-           FullRangeMinus1Fun,
-           TMark4,
-           fun (Range, State) ->
-                   {int, rand:uniform_s(Range, State)}
-           end) || Algo <- Algos],
+        measure_1(
+          fun (State) -> (half_range(State) bsl 1) - 1 end,
+          fun (State, Range, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM_RANGE(
+                               Mod:uniform_s(Range, St0), Range,
+                               X, St1)
+                    end,
+                    State)
+          end,
+          Algs),
     %%
     ct:pal("~nRNG uniform integer full range performance~n",[]),
-    FullRangeFun = fun (State) -> half_range(State) bsl 1 end,
-    TMark5 =
-        measure_1(
-          random,
-          FullRangeFun,
-          undefined,
-          fun (Range, State) ->
-                  {int, random:uniform_s(Range, State)}
-          end),
     _ =
-        [measure_1(
-           Algo,
-           FullRangeFun,
-           TMark5,
-           fun (Range, State) ->
-                   {int, rand:uniform_s(Range, State)}
-           end) || Algo <- Algos],
+        measure_1(
+          fun (State) -> half_range(State) bsl 1 end,
+          fun (State, Range, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM_RANGE(
+                               Mod:uniform_s(Range, St0), Range,
+                               X, St1)
+                    end,
+                    State)
+          end,
+          Algs),
     %%
     ct:pal("~nRNG uniform integer full range + 1 performance~n",[]),
-    FullRangePlus1Fun = fun (State) -> (half_range(State) bsl 1) + 1 end,
-    TMark6 =
-        measure_1(
-          random,
-          FullRangePlus1Fun,
-          undefined,
-          fun (Range, State) ->
-                  {int, random:uniform_s(Range, State)}
-          end),
     _ =
-        [measure_1(
-           Algo,
-           FullRangePlus1Fun,
-           TMark6,
-           fun (Range, State) ->
-                   {int, rand:uniform_s(Range, State)}
-           end) || Algo <- Algos],
+        measure_1(
+          fun (State) -> (half_range(State) bsl 1) + 1 end,
+          fun (State, Range, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM_RANGE(
+                               Mod:uniform_s(Range, St0), Range,
+                               X, St1)
+                    end,
+                    State)
+          end,
+          Algs),
     %%
     ct:pal("~nRNG uniform integer double range performance~n",[]),
-    DoubleRangeFun = fun (State) -> half_range(State) bsl 2 end,
-    TMark7 =
-        measure_1(
-          random,
-          DoubleRangeFun,
-          undefined,
-          fun (Range, State) ->
-                  {int, random:uniform_s(Range, State)}
-          end),
     _ =
-        [measure_1(
-           Algo,
-           DoubleRangeFun,
-           TMark7,
-           fun (Range, State) ->
-                   {int, rand:uniform_s(Range, State)}
-           end) || Algo <- Algos],
+        measure_1(
+          fun (State) ->
+                  half_range(State) bsl 2
+          end,
+          fun (State, Range, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM_RANGE(
+                               Mod:uniform_s(Range, St0), Range,
+                               X, St1)
+                    end,
+                    State)
+          end,
+          Algs),
     %%
     ct:pal("~nRNG uniform integer double range + 1  performance~n",[]),
-    DoubleRangePlus1Fun = fun (State) -> (half_range(State) bsl 2) + 1 end,
-    TMark8 =
+    _ =
         measure_1(
-          random,
-          DoubleRangePlus1Fun,
-          undefined,
-          fun (Range, State) ->
-                  {int, random:uniform_s(Range, State)}
-          end),
+          fun (State) ->
+                  (half_range(State) bsl 2) + 1
+          end,
+          fun (State, Range, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM_RANGE(
+                               Mod:uniform_s(Range, St0), Range,
+                               X, St1)
+                    end,
+                    State)
+          end,
+          Algs),
+    %%
+    ct:pal("~nRNG uniform integer 64 bit performance~n",[]),
     _ =
-        [measure_1(
-           Algo,
-           DoubleRangePlus1Fun,
-           TMark8,
-           fun (Range, State) ->
-                   {int, rand:uniform_s(Range, State)}
-           end) || Algo <- Algos],
+        measure_1(
+          fun (_) -> 1 bsl 64 end,
+          fun (State, Range, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM_RANGE(
+                               Mod:uniform_s(Range, St0), Range,
+                               X, St1)
+                    end,
+                    State)
+          end,
+          Algs),
     %%
     ct:pal("~nRNG uniform float performance~n",[]),
-    TMark9 =
+    _ =
         measure_1(
-          random,
           fun (_) -> 0 end,
-          undefined,
-          fun (_, State) ->
-                  {uniform, random:uniform_s(State)}
-          end),
+          fun (State, _, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM(Mod:uniform_s(St0), X, St)
+                    end,
+                    State)
+          end,
+          Algs),
+    %%
+    ct:pal("~nRNG uniform_real float performance~n",[]),
     _ =
-        [measure_1(
-           Algo, 
-           fun (_) -> 0 end,
-           TMark9,
-           fun (_, State) ->
-                   {uniform, rand:uniform_s(State)}
-           end) || Algo <- Algos],
+        measure_1(
+          fun (_) -> 0 end,
+          fun (State, _, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_UNIFORM(Mod:uniform_real_s(St0), X, St)
+                    end,
+                    State)
+          end,
+          Algs),
     %%
     ct:pal("~nRNG normal float performance~n",[]),
-    io:format("~.12w: not implemented (too few bits)~n", [random]),
-    _ = [measure_1(
-           Algo,
-           fun (_) -> 0 end,
-           TMark9,
-           fun (_, State) ->
-                   {normal, rand:normal_s(State)}
-           end) || Algo <- Algos],
+    [TMarkNormalFloat|_] =
+        measure_1(
+          fun (_) -> 0 end,
+          fun (State, _, Mod) ->
+                  measure_loop(
+                    fun (St0) ->
+                            ?CHECK_NORMAL(Mod:normal_s(St0), X, St1)
+                    end,
+                    State)
+          end,
+          Algs),
+    %% Just for fun try an implementation of the Box-Muller
+    %% transformation for creating normal distribution floats
+    %% to compare with our Ziggurat implementation.
+    %% Generates two numbers per call that we add so they
+    %% will not be optimized away.  Hence the benchmark time
+    %% is twice what it should be.
+    TwoPi = 2 * math:pi(),
+    _ =
+        measure_1(
+          fun (_) -> 0 end,
+          fun (State, _, Mod) ->
+                  measure_loop(
+                    fun (State0) ->
+                            {U1, State1} = Mod:uniform_real_s(State0),
+                            {U2, State2} = Mod:uniform_s(State1),
+                            R = math:sqrt(-2.0 * math:log(U1)),
+                            T = TwoPi * U2,
+                            Z0 = R * math:cos(T),
+                            Z1 = R * math:sin(T),
+                            ?CHECK_NORMAL({Z0 + Z1, State2}, X, State3)
+                    end,
+                    State)
+          end,
+          exrop, TMarkNormalFloat),
+    ok.
+
+-define(LOOP_MEASURE, (?LOOP div 5)).
+
+measure_loop(Fun, State) ->
+    measure_loop(Fun, State, ?LOOP_MEASURE).
+%%
+measure_loop(Fun, State, N) when 0 < N ->
+    measure_loop(Fun, Fun(State), N-1);
+measure_loop(_, _, _) ->
     ok.
 
-measure_1(Algo, RangeFun, TMark, Gen) ->
+measure_1(RangeFun, Fun, Algs) ->
+    TMark = measure_1(RangeFun, Fun, hd(Algs), undefined),
+    [TMark] ++
+        [measure_1(RangeFun, Fun, Alg, TMark) || Alg <- tl(Algs)].
+
+measure_1(RangeFun, Fun, Alg, TMark) ->
     Parent = self(),
-    Seed =
-        case Algo of
+    {Mod, State} =
+        case Alg of
             crypto64 ->
-                crypto64_seed();
+                {rand, crypto64_seed()};
+            crypto_cache ->
+                {rand, crypto:rand_seed_alg(crypto_cache)};
             crypto ->
-                crypto:rand_seed_s();
+                {rand, crypto:rand_seed_s()};
             random ->
-                random:seed(os:timestamp()), get(random_seed);
+                {random, random:seed(os:timestamp()), get(random_seed)};
             _ ->
-                rand:seed_s(Algo)
+                {rand, rand:seed_s(Alg)}
         end,
-    Range = RangeFun(Seed),
+    Range = RangeFun(State),
     Pid = spawn_link(
             fun() ->
-                    Fun = fun() -> measure_2(?LOOP, Range, Seed, Gen) end,
-                    {Time, ok} = timer:tc(Fun),
+                    {Time, ok} = timer:tc(fun () -> Fun(State, Range, Mod) end),
                     Percent =
                         case TMark of
                             undefined -> 100;
@@ -673,7 +891,8 @@ measure_1(Algo, RangeFun, TMark, Gen) ->
                         end,
                     io:format(
                       "~.12w: ~p ns ~p% [16#~.16b]~n",
-                      [Algo, (Time * 1000 + 500) div ?LOOP, Percent, Range]),
+                      [Alg, (Time * 1000 + 500) div ?LOOP_MEASURE,
+                       Percent, Range]),
                     Parent ! {self(), Time},
                     normal
             end),
@@ -681,21 +900,6 @@ measure_1(Algo, RangeFun, TMark, Gen) ->
 	{Pid, Msg} -> Msg
     end.
 
-measure_2(N, Range, State0, Fun) when N > 0 ->
-    case Fun(Range, State0) of
-	{int, {Random, State}}
-	  when is_integer(Random), Random >= 1, Random =< Range ->
-	    measure_2(N-1, Range, State, Fun);
-	{uniform, {Random, State}}
-          when is_float(Random), 0.0 =< Random, Random < 1.0 ->
-	    measure_2(N-1, Range, State, Fun);
-	{normal, {Random, State}} when is_float(Random) ->
-	    measure_2(N-1, Range, State, Fun);
-	Res ->
-	    exit({error, Res, State0})
-    end;
-measure_2(0, _, _, _) -> ok.
-
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %% The jump sequence tests has two parts
 %% for those with the functional API (jump/1)
diff --git a/lib/stdlib/test/re_SUITE_data/testoutput1 b/lib/stdlib/test/re_SUITE_data/testoutput1
index a2b3cffe9d..eff8ecc948 100644
--- a/lib/stdlib/test/re_SUITE_data/testoutput1
+++ b/lib/stdlib/test/re_SUITE_data/testoutput1
@@ -9442,4 +9442,8 @@ No match
     \  X
  0: X
      
+/X+(?#comment)?/
+    >XXX<
+ 0: X
+
 /-- End of testinput1 --/
diff --git a/lib/stdlib/test/re_SUITE_data/testoutput8 b/lib/stdlib/test/re_SUITE_data/testoutput8
index 17b667a980..4984376d3c 100644
--- a/lib/stdlib/test/re_SUITE_data/testoutput8
+++ b/lib/stdlib/test/re_SUITE_data/testoutput8
@@ -7801,4 +7801,8 @@ No match
 ** Show all captures ignored after DFA matching
  0: a
 
+/(02-)?[0-9]{3}-[0-9]{3}/
+    02-123-123
+ 0: 02-123-123
+
 /-- End of testinput8 --/
diff --git a/lib/stdlib/test/stdlib.spec b/lib/stdlib/test/stdlib.spec
index 3768e494b2..91712b8963 100644
--- a/lib/stdlib/test/stdlib.spec
+++ b/lib/stdlib/test/stdlib.spec
@@ -1 +1,2 @@
 {suites,"../stdlib_test",all}.
+{skip_suites,"../stdlib_test",stdlib_bench_SUITE, "bench only"}.
diff --git a/lib/stdlib/test/stdlib_bench.spec b/lib/stdlib/test/stdlib_bench.spec
new file mode 100644
index 0000000000..a5d1e1db80
--- /dev/null
+++ b/lib/stdlib/test/stdlib_bench.spec
@@ -0,0 +1,7 @@
+%% Needed to compile ,unicode_util_SUITE and string_SUITE...
+{cases,"../stdlib_test",unicode_util_SUITE, []}.
+{cases,"../stdlib_test",string_SUITE, []}.
+{skip_suites,"../stdlib_test",unicode_util_SUITE, "bench only"}.
+{skip_suites,"../stdlib_test",string_SUITE, "bench only"}.
+
+{suites,"../stdlib_test",[stdlib_bench_SUITE]}.
diff --git a/lib/stdlib/test/stdlib_bench_SUITE.erl b/lib/stdlib/test/stdlib_bench_SUITE.erl
new file mode 100644
index 0000000000..8670e7029c
--- /dev/null
+++ b/lib/stdlib/test/stdlib_bench_SUITE.erl
@@ -0,0 +1,107 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012-2016. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+-module(stdlib_bench_SUITE).
+-compile([export_all, nowarn_export_all]).
+-include_lib("common_test/include/ct_event.hrl").
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+suite() -> [{ct_hooks,[{ts_install_cth,[{nodenames,2}]}]}].
+
+
+all() ->
+    [{group,unicode}].
+
+groups() ->
+    [{unicode,[{repeat,5}],
+      [norm_nfc_list, norm_nfc_deep_l, norm_nfc_binary,
+       string_lexemes_list, string_lexemes_binary
+      ]}].
+
+init_per_group(_GroupName, Config) ->
+    Config.
+
+end_per_group(_GroupName, Config) ->
+    Config.
+
+init_per_suite(Config) ->
+    Config.
+
+end_per_suite(Config) ->
+    Config.
+
+init_per_testcase(_Func, Conf) ->
+    Conf.
+
+end_per_testcase(_Func, _Conf) ->
+    ok.
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+-define(REPEAT_NORM, 5).
+
+norm_nfc_list(Config) ->
+    Bin = norm_data(Config),
+    {_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, list, Bin, ?REPEAT_NORM),
+    report(1000.0*Res / Mean).
+
+norm_nfc_deep_l(Config) ->
+    Bin = norm_data(Config),
+    {_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, deep_l, Bin, ?REPEAT_NORM),
+    report(1000.0*Res / Mean).
+
+norm_nfc_binary(Config) ->
+    Bin = norm_data(Config),
+    {_N, Mean, _Stddev, Res} = unicode_util_SUITE:time_count(nfc, binary, Bin, ?REPEAT_NORM),
+    report(1000.0*Res / Mean).
+
+
+string_lexemes_list(Config) ->
+    %% Use nth_lexeme instead of lexemes to avoid building a result of
+    %% large lists which causes large differences between test runs, gc?
+    Bin = norm_data(Config),
+    Fun = fun(Str) -> string:nth_lexeme(Str, 200000, [$;,$\n,$\r]), 200000 end,
+    {_N, Mean, _Stddev, Res} = string_SUITE:time_func(Fun, list, Bin, 15),
+    report(1000.0*Res / Mean).
+
+string_lexemes_binary(Config) ->
+    %% Use nth_lexeme instead of lexemes to avoid building a result of
+    %% large lists which causes large differences between test runs, gc?
+    Bin = norm_data(Config),
+    Fun = fun(Str) -> string:nth_lexeme(Str, 200000, [$;,$\n,$\r]), 200000 end,
+    {_N, Mean, _Stddev, Res} = string_SUITE:time_func(Fun, binary, Bin, ?REPEAT_NORM),
+    report(1000.0*Res / Mean).
+
+%%%
+report(Tps) ->
+    ct_event:notify(#event{name = benchmark_data,
+                           data = [{suite,"stdlib_unicode"},{value,round(Tps)}]}),
+    Tps.
+
+norm_data(Config) ->
+    DataDir0 = proplists:get_value(data_dir, Config),
+    DataDir = filename:join(lists:droplast(filename:split(DataDir0))),
+    File = filename:join([DataDir,"unicode_util_SUITE_data","NormalizationTest.txt"]),
+    {ok, Bin} = file:read_file(File),
+    Bin.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
diff --git a/lib/stdlib/test/string_SUITE.erl b/lib/stdlib/test/string_SUITE.erl
index 90f980c0e5..05f18ef238 100644
--- a/lib/stdlib/test/string_SUITE.erl
+++ b/lib/stdlib/test/string_SUITE.erl
@@ -47,7 +47,7 @@
 -export([to_upper_to_lower/1]).
 
 %% Run tests when debugging them
--export([debug/0]).
+-export([debug/0, time_func/4]).
 
 suite() ->
     [{ct_hooks,[ts_install_cth]},
@@ -728,7 +728,7 @@ do_measure(TestDir) ->
     {ok, Bin} = file:read_file(File),
     io:format("~p~n",[byte_size(Bin)]),
     Do = fun(Name, Func, Mode) ->
-                 {N, Mean, Stddev, _} = time_func(Func, Mode, Bin),
+                 {N, Mean, Stddev, _} = time_func(Func, Mode, Bin, 50),
                  io:format("~10w ~6w ~6.2fms ±~4.2fms #~.2w gc included~n",
                            [Name, Mode, Mean/1000, Stddev/1000, N])
          end,
@@ -938,19 +938,19 @@ needs_check(_) -> true.
 
 %%%% Timer stuff
 
-time_func(Fun, Mode, Bin) ->
+time_func(Fun, Mode, Bin, Repeat) ->
     timer:sleep(100), %% Let emulator catch up and clean things before test runs
     Self = self(),
     Pid = spawn_link(fun() ->
                              Str = mode(Mode, Bin),
-                             Self ! {self(),time_func(0,0,0, Fun, Str, undefined)}
+                             Self ! {self(),time_func(0,0,0, Fun, Str, undefined, Repeat)}
                      end),
     receive {Pid,Msg} -> Msg end.
 
-time_func(N,Sum,SumSq, Fun, Str, _) when N < 50 ->
+time_func(N,Sum,SumSq, Fun, Str, _, Repeat) when N < Repeat ->
     {Time, Res} = timer:tc(fun() -> Fun(Str) end),
-    time_func(N+1,Sum+Time,SumSq+Time*Time, Fun, Str, Res);
-time_func(N,Sum,SumSq, _, _, Res) ->
+    time_func(N+1,Sum+Time,SumSq+Time*Time, Fun, Str, Res, Repeat);
+time_func(N,Sum,SumSq, _, _, Res, _) ->
     Mean = round(Sum / N),
     Stdev = round(math:sqrt((SumSq - (Sum*Sum/N))/(N - 1))),
     {N, Mean, Stdev, Res}.
diff --git a/lib/stdlib/test/unicode_expand.erl b/lib/stdlib/test/unicode_expand.erl
new file mode 100644
index 0000000000..41f741fa84
--- /dev/null
+++ b/lib/stdlib/test/unicode_expand.erl
@@ -0,0 +1,36 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2017. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(unicode_expand).
+
+-export(['кlирилли́ческий атом'/0, 'кlирилли́ческий атом'/1,
+        'кlирилли́ческий атомB'/1]).
+
+-export_type(['кlирилли́ческий атом'/0]).
+
+-type 'кlирилли́ческий атом'() :: integer().
+
+'кlирилли́ческий атом'() ->
+    'кlирилли́ческий атом'('кlирилли́ческий атом').
+
+'кlирилли́ческий атом'(_Atom) ->
+    ok.
+
+'кlирилли́ческий атомB'(_B) ->
+    true.
diff --git a/lib/stdlib/test/unicode_util_SUITE.erl b/lib/stdlib/test/unicode_util_SUITE.erl
index 03c24c7027..7dba0a2fd0 100644
--- a/lib/stdlib/test/unicode_util_SUITE.erl
+++ b/lib/stdlib/test/unicode_util_SUITE.erl
@@ -29,7 +29,9 @@
          get/1,
          count/1]).
 
--export([debug/0, id/1, bin_split/1, uc_loaded_size/0]).
+-export([debug/0, id/1, bin_split/1, uc_loaded_size/0,
+        time_count/4  %% Used by stdlib_bench_SUITE
+        ]).
 
 suite() ->
     [{ct_hooks,[ts_install_cth]},
@@ -323,7 +325,7 @@ do_measure(Config) ->
     File =  DataDir ++ "/NormalizationTest.txt",
     {ok, Bin} = file:read_file(File),
     Do = fun(Func, Mode) ->
-                 {N, Mean, Stddev, Res} = time_count(Func, Mode, Bin),
+                 {N, Mean, Stddev, Res} = time_count(Func, Mode, Bin, 10),
                  io:format("~4w ~6w ~.10w ~.6wms ±~.2wms #~.2w~n",
                            [Func, Mode, Res, Mean div 1000, Stddev div 1000, N])
          end,
@@ -345,19 +347,19 @@ uc_loaded_size([_|Rest]) ->
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-time_count(Fun, Mode, Bin) ->
+time_count(Fun, Mode, Bin, Repeat) ->
     timer:sleep(100), %% Let emulator catch up and clean things before test runs
     Self = self(),
     Pid = spawn_link(fun() ->
                              Str = mode(Mode, Bin),
-                             Self ! {self(),do_count(0,0,0, Fun, Str, undefined)}
+                             Self ! {self(),do_count(0,0,0, Fun, Str, undefined, Repeat)}
                      end),
     receive {Pid,Msg} -> Msg end.
 
-do_count(N,Sum,SumSq, Fun, Str, _) when N < 10 ->
+do_count(N,Sum,SumSq, Fun, Str, _, Repeat) when N < Repeat ->
     {Time, Res} = do_count(Fun, Str),
-    do_count(N+1,Sum+Time,SumSq+Time*Time, Fun, Str, Res);
-do_count(N,Sum,SumSq, _, _, Res) ->
+    do_count(N+1,Sum+Time,SumSq+Time*Time, Fun, Str, Res, Repeat);
+do_count(N,Sum,SumSq, _, _, Res, _) ->
     Mean = round(Sum / N),
     Stdev = round(math:sqrt((SumSq - (Sum*Sum/N))/(N - 1))),
     {N, Mean, Stdev, Res}.
diff --git a/lib/stdlib/uc_spec/gen_unicode_mod.escript b/lib/stdlib/uc_spec/gen_unicode_mod.escript
index 5b8763f576..674e5a0628 100755
--- a/lib/stdlib/uc_spec/gen_unicode_mod.escript
+++ b/lib/stdlib/uc_spec/gen_unicode_mod.escript
@@ -65,7 +65,7 @@ main(_) ->
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 parse_unicode_data(Line0, Acc) ->
-    Line = string:strip(Line0, right, $\n),
+    Line = string:chomp(Line0),
     [CodePoint,Name,_Cat,Class,_BiDi,Decomp,
      _N1,_N2,_N3,_BDMirror,_Uni1,_Iso|Case] = tokens(Line, ";"),
     {Dec,Comp} = case to_decomp(Decomp) of
@@ -78,14 +78,14 @@ parse_unicode_data(Line0, Acc) ->
      |Acc].
 
 to_class(String) ->
-    list_to_integer(string:strip(String, both)).
+    list_to_integer(string:trim(String, both)).
 
 to_decomp("") -> [];
 to_decomp("<" ++ Str) ->
-    [Tag,Rest]  = string:tokens(Str, ">"),
+    [Tag,Rest]  = string:lexemes(Str, ">"),
     {list_to_atom(Tag), to_decomp(Rest)};
 to_decomp(CodePoints) ->
-    CPL = string:tokens(CodePoints, " "),
+    CPL = string:lexemes(CodePoints, " "),
     [hex_to_int(CP) || CP <- CPL].
 
 to_case(["","",""]) -> [];
@@ -105,20 +105,20 @@ parse_special_casing(Line, Table) ->
     array:set(CP, Entry#cp{cs=Case}, Table).
 
 to_scase([Lower,Title,Upper|_]) ->
-    {unlist([hex_to_int(CP) || CP <- string:strip(string:tokens(Upper, " "), both)]),
-     unlist([hex_to_int(CP) || CP <- string:strip(string:tokens(Lower, " "), both)]),
-     unlist([hex_to_int(CP) || CP <- string:strip(string:tokens(Title, " "), both)]),
+    {unlist([hex_to_int(CP) || CP <- string:lexemes(Upper, " ")]),
+     unlist([hex_to_int(CP) || CP <- string:lexemes(Lower, " ")]),
+     unlist([hex_to_int(CP) || CP <- string:lexemes(Title, " ")]),
      []}.
 
 parse_case_folding(Line, Table) ->
     [CodePoint, Class0, CaseStr |_Comments] = tokens(Line, ";"),
-    Class = string:strip(Class0, both),
+    Class = string:trim(Class0, both),
     if Class =:= "T" -> Table; %% Do not support localization yet
        Class =:= "S" -> Table; %% Ignore simple
        true ->
             CP = hex_to_int(CodePoint),
             Case = unlist([hex_to_int(CPC) ||
-                              CPC <- string:strip(string:tokens(CaseStr, " "), both)]),
+                              CPC <- string:lexemes(CaseStr, " ")]),
             #cp{cs={U,L,T,_}} = Entry = array:get(CP, Table),
             array:set(CP, Entry#cp{cs={U,L,T,Case}}, Table)
     end.
@@ -869,10 +869,10 @@ optimize_ranges_1(Rs) ->
 
 hex_to_int([]) -> [];
 hex_to_int(HexStr) ->
-    list_to_integer(string:strip(HexStr, both), 16).
+    list_to_integer(string:trim(HexStr, both), 16).
 
 to_atom(Str) ->
-    list_to_atom(string:to_lower(string:strip(Str, both))).
+    list_to_atom(string:lowercase(string:trim(Str, both))).
 
 foldl(Fun, Acc, Fd) ->
     Get = fun() -> file:read_line(Fd) end,
@@ -892,7 +892,7 @@ foldl_1(Fun, Acc, Get) ->
 
 
 
-%% Differs from string:tokens, it returns empty string as token between two delimiters
+%% Differs from string:lexemes, it returns empty string as token between two delimiters
 tokens(S, [C]) ->
     tokens(lists:reverse(S), C, []).
 
diff --git a/lib/stdlib/vsn.mk b/lib/stdlib/vsn.mk
index 8a83cdec1e..48db5dc900 100644
--- a/lib/stdlib/vsn.mk
+++ b/lib/stdlib/vsn.mk
@@ -1 +1 @@
-STDLIB_VSN = 3.4.1
+STDLIB_VSN = 3.4.2
diff --git a/lib/syntax_tools/doc/src/Makefile b/lib/syntax_tools/doc/src/Makefile
index e55222e59c..1ce620b3d6 100644
--- a/lib/syntax_tools/doc/src/Makefile
+++ b/lib/syntax_tools/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2006-2016. All Rights Reserved.
+# Copyright Ericsson AB 2006-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -55,7 +55,7 @@ XML_REF3_FILES = \
 	merl_transform.xml \
 	prettypr.xml
 
-XML_PART_FILES = part.xml part_notes.xml
+XML_PART_FILES = part.xml
 XML_CHAPTER_FILES = chapter.xml
 XML_NOTES_FILES = notes.xml
 
@@ -86,11 +86,11 @@ SPECS_FILES = $(XML_REF3_FILES:%.xml=$(SPECDIR)/specs_%.xml)
 TOP_SPECS_FILE = specs.xml
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 SPECS_FLAGS = -I../../include
-DVIPS_FLAGS += 
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -112,13 +112,13 @@ $(XML_REF3_FILES):
 	escript $(DOCGEN)/priv/bin/xml_from_edoc.escript $(SRC_DIR)/$(@:%.xml=%.erl)
 
 $(XML_CHAPTER_FILES):
-	escript $(DOCGEN)/priv/bin/xml_from_edoc.escript -def vsn $(VSN) -chapter ../overview.edoc 
+	escript $(DOCGEN)/priv/bin/xml_from_edoc.escript -def vsn $(VSN) -chapter ../overview.edoc
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
 xml: $(XML_REF3_FILES) $(XML_CHAPTER_FILES)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
@@ -126,11 +126,11 @@ clean clean_docs:
 	rm -f $(XML_REF3_FILES) $(XML_CHAPTER_FILES) *.html
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
 	rm -f $(SPECDIR)/*
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
diff --git a/lib/syntax_tools/doc/src/fascicules.xml b/lib/syntax_tools/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/syntax_tools/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/syntax_tools/doc/src/notes.xml b/lib/syntax_tools/doc/src/notes.xml
index f85d963919..8c91f01e3b 100644
--- a/lib/syntax_tools/doc/src/notes.xml
+++ b/lib/syntax_tools/doc/src/notes.xml
@@ -32,6 +32,27 @@
   <p>This document describes the changes made to the Syntax_Tools
     application.</p>
 
+<section><title>Syntax_Tools 2.1.3</title>
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+        <item>
+	    <p> A process trapping exits and calling <c>erl_tidy</c>
+	    no longer hangs if an error occurs. </p>
+          <p>
+	    Own Id: OTP-14471 Aux Id: ERL-413 </p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Syntax_Tools 2.1.2</title>
 
     <section><title>Improvements and New Features</title>
diff --git a/lib/syntax_tools/doc/src/part_notes.xml b/lib/syntax_tools/doc/src/part_notes.xml
deleted file mode 100644
index e02ffddcb2..0000000000
--- a/lib/syntax_tools/doc/src/part_notes.xml
+++ /dev/null
@@ -1,42 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2007</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Syntax_Tools Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p><em>Syntax_Tools</em> contains modules for handling abstract
-      Erlang syntax trees, in a way that is compatible with the "parse
-      trees" of the STDLIB module <c>erl_parse</c>, together with
-      utilities for reading source files in unusual ways and
-      pretty-printing syntax trees. Also included is an amazing module
-      merger and renamer called Igor, as well as an automatic
-      code-cleaner.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/syntax_tools/src/Makefile b/lib/syntax_tools/src/Makefile
index 8325db45a8..c21d2f49c8 100644
--- a/lib/syntax_tools/src/Makefile
+++ b/lib/syntax_tools/src/Makefile
@@ -75,7 +75,7 @@ $(EBIN)/%.$(EMULATOR):%.erl
 
 # special rules and dependencies to apply the transform to itself
 $(EBIN)/merl_transform.beam: $(EBIN)/merl.beam ./merl_transform.beam \
-			../include/merl.hrl \
+			../include/merl.hrl $(EBIN)/erl_comment_scan.beam \
 			$(EBIN)/erl_syntax.beam $(EBIN)/erl_syntax_lib.beam
 ./merl_transform.beam: ./merl_transform.erl $(EBIN)/merl.beam \
 			../include/merl.hrl
diff --git a/lib/syntax_tools/src/epp_dodger.erl b/lib/syntax_tools/src/epp_dodger.erl
index cf1ba0abfa..0a12e8fd8b 100644
--- a/lib/syntax_tools/src/epp_dodger.erl
+++ b/lib/syntax_tools/src/epp_dodger.erl
@@ -866,10 +866,10 @@ tokens_to_string([]) ->
 format_error(macro_args) ->
     errormsg("macro call missing end parenthesis");
 format_error({unknown, Reason}) ->
-    errormsg(io_lib:format("unknown error: ~P", [Reason, 15])).
+    errormsg(io_lib:format("unknown error: ~tP", [Reason, 15])).
 
 errormsg(String) ->
-    io_lib:format("~s: ~s", [?MODULE, String]).
+    io_lib:format("~s: ~ts", [?MODULE, String]).
 
 
 %% =====================================================================
diff --git a/lib/syntax_tools/src/erl_comment_scan.erl b/lib/syntax_tools/src/erl_comment_scan.erl
index a7a2c10b79..e3eb95b819 100644
--- a/lib/syntax_tools/src/erl_comment_scan.erl
+++ b/lib/syntax_tools/src/erl_comment_scan.erl
@@ -208,7 +208,7 @@ scan_comment([], Cs1, L, Col, M, Ack) ->
 seen_comment(Cs, Cs1, L, Col, M, Ack) ->
     %% Compute indentation and strip trailing spaces
     N = Col - M,
-    Text = lists:reverse(string:strip(Cs1, left)),
+    Text = lists:reverse(string:trim(Cs1, leading)),
     Ack1 = [{L, Col + 1, N, Text} | Ack],
     scan_lines(Cs, L + 1, 0, 0, Ack1).
 
@@ -309,7 +309,7 @@ filename([C|T]) when is_integer(C), C > 0 ->
 filename([]) ->
     [];
 filename(N) ->
-    report_error("bad filename: `~P'.", [N, 25]),
+    report_error("bad filename: `~tP'.", [N, 25]),
     exit(error).
 
 error_read_file(Name) ->
diff --git a/lib/syntax_tools/src/erl_tidy.erl b/lib/syntax_tools/src/erl_tidy.erl
index 888cb71f51..5623aa6af3 100644
--- a/lib/syntax_tools/src/erl_tidy.erl
+++ b/lib/syntax_tools/src/erl_tidy.erl
@@ -193,7 +193,7 @@ dir_3(Name, Dir, Regexp, Env) ->
     dir_1(Dir1, Regexp, Env).
 
 dir_4(File, Regexp, Env) ->
-    case re:run(File, Regexp) of
+    case re:run(File, Regexp, [unicode]) of
         {match, _} ->
             Opts = [{outfile, File}, {dir, ""} | Env#dir.options],
             case catch file(File, Opts) of
@@ -805,7 +805,7 @@ keep_form(Form, Used, Opts) ->
                     {F, A} = N,
                     File = proplists:get_value(file, Opts, ""),
                     report({File, erl_syntax:get_pos(Form),
-                            "removing unused function `~w/~w'."},
+                            "removing unused function `~tw/~w'."},
                            [F, A], Opts),
                     false;
                 true ->
@@ -870,8 +870,8 @@ update_attribute(F, Imports, Opts) ->
                 Names ->
                     File = proplists:get_value(file, Opts, ""),
                     report({File, erl_syntax:get_pos(F),
-			    "removing unused imports:~s"},
-			   [[io_lib:fwrite("\n\t`~w:~w/~w'", [M, N, A])
+			    "removing unused imports:~ts"},
+			   [[io_lib:fwrite("\n\t`~w:~tw/~w'", [M, N, A])
 			     || {N, A} <- Names]], Opts)
             end,
             Is = [make_fname(N) || N <- Ns1],
@@ -1166,7 +1166,7 @@ visit_import_application({N, A} = Name, F, As, Tree, Env, St0) ->
     case Expand of
         true ->
             report({Env#env.file, erl_syntax:get_pos(F),
-		    "expanding call to imported function `~w:~w/~w'."},
+		    "expanding call to imported function `~w:~tw/~w'."},
 		   [M, N, A], Env#env.verbosity),
             F1 = erl_syntax:module_qualifier(erl_syntax:atom(M),
                                              erl_syntax:atom(N)),
@@ -1220,7 +1220,7 @@ visit_spawn_call({N, A}, F, Ps, [A1, A2, A3] = As, Tree,
     case erl_syntax:is_proper_list(A3) of
         true ->
             report({Env#env.file, erl_syntax:get_pos(F),
-		    "changing use of `~w/~w' to `~w/~w' with a fun."},
+		    "changing use of `~tw/~w' to `~tw/~w' with a fun."},
 		   [N, A, N, 1 + length(Ps)], Env#env.verbosity),
             F1 = case erl_syntax:is_atom(A1, Env#env.module) of
                      true ->
@@ -1404,8 +1404,8 @@ visit_remote_application({M, N, A} = Name, F, As, Tree, Env, St) ->
             case rename_remote_call(Name, St) of
                 {M1, N1} ->
                     report({Env#env.file, erl_syntax:get_pos(F),
-			    "updating obsolete call to `~w:~w/~w' "
-			    "to use `~w:~w/~w' instead."},
+			    "updating obsolete call to `~w:~tw/~w' "
+			    "to use `~w:~tw/~w' instead."},
 			   [M, N, A, M1, N1, A], Env#env.verbosity),
                     M2 = erl_syntax:atom(M1),
                     N2 = erl_syntax:atom(N1),
@@ -1820,7 +1820,7 @@ filename([]) ->
 filename(N) when is_atom(N) ->
     atom_to_list(N);
 filename(N) ->
-    report_error("bad filename: `~P'.", [N, 25]),
+    report_error("bad filename: `~tP'.", [N, 25]),
     exit(error).
 
 get_env(Tree) ->
@@ -1911,11 +1911,11 @@ format({warning, D}, Vs) ->
 format({recommend, D}, Vs) ->
     ["recommendation: ", format(D, Vs)];
 format({"", L, D}, Vs) when is_integer(L), L > 0 ->
-    [io_lib:fwrite("~w: ", [L]), format(D, Vs)];
+    [io_lib:fwrite("~tw: ", [L]), format(D, Vs)];
 format({"", _L, D}, Vs) ->
     format(D, Vs);
 format({F, L, D}, Vs) when is_integer(L), L > 0 ->
-    [io_lib:fwrite("~ts:~w: ", [filename(F), L]), format(D, Vs)];
+    [io_lib:fwrite("~ts:~tw: ", [filename(F), L]), format(D, Vs)];
 format({F, _L, D}, Vs) ->
     [io_lib:fwrite("~ts: ", [filename(F)]), format(D, Vs)];
 format(S, Vs) when is_list(S) ->
diff --git a/lib/syntax_tools/src/igor.erl b/lib/syntax_tools/src/igor.erl
index b92cd8d607..16e3511734 100644
--- a/lib/syntax_tools/src/igor.erl
+++ b/lib/syntax_tools/src/igor.erl
@@ -834,7 +834,7 @@ merge_sources_1(Name, Modules, Trees, Opts) ->
 		       dict:from_list(Rs);
 		   false ->
 		       report_error("bad value for `redirect' option: "
-				    "~P.",
+				    "~tP.",
 				    [Rs, 10]),
 		       exit(error)
 	       end,
@@ -1069,7 +1069,7 @@ filter_forms_2(Forms, Env) ->
 		    comment -> kill;
 		    _ ->
 			report_error("invalid value for option "
-				     "`file_attributes': ~w.",
+				     "`file_attributes': ~tw.",
 				     [FileAttrsOpt]),
 			exit(error)
 		end,
@@ -1180,7 +1180,7 @@ merge_namespaces(Modules, Env) ->
 	[] ->
 	    ok;
 	Fs ->
-	    report_warning("interface functions renamed:\n\t~p.", [Fs])
+	    report_warning("interface functions renamed:\n\t~tp.", [Fs])
     end,
     {M4, Acc2} = merge_namespaces_1(M2, Acc1),
     Ms = M3 ++ M4,
@@ -1778,7 +1778,7 @@ transform_function(T, Env, St) ->
     {maybe_modified(V, T1, 2, Text, Env), St1}.
 
 renaming_note(Name) ->
-    [lists:flatten(io_lib:fwrite("renamed function to `~w'",
+    [lists:flatten(io_lib:fwrite("renamed function to `~tw'",
 				 [Name]))].
 
 rename_atom(Node, Atom) ->
@@ -2488,7 +2488,7 @@ rename(Files, Renamings, Opts) ->
 	       true ->
 		   dict:from_list(Renamings);
 	       false ->
-		   report_error("bad module renaming: ~P.",
+		   report_error("bad module renaming: ~tP.",
 				[Renamings, 10]),
 		   exit(error)
 	   end,
@@ -2672,7 +2672,7 @@ error_text(D, Name) ->
     end.
 
 error_text_1(D, Name) ->
-    io_lib:fwrite("error: `~w', ~P.", [Name, D, 15]).
+    io_lib:fwrite("error: `~w', ~tP.", [Name, D, 15]).
 
 check_records(Rs, Name) ->
     case duplicates([N || {N, _} <- Rs]) of
@@ -2680,7 +2680,7 @@ check_records(Rs, Name) ->
 	    ok;
 	Ns ->
 	    report_error("in module `~w': "
-			 "multiply defined records: ~p.",
+			 "multiply defined records: ~tp.",
 			 [Name, Ns]),
 	    exit(error)
     end.
@@ -2694,7 +2694,7 @@ expand_imports(Is, Name) ->
 	    ordsets:from_list(As);
 	Ns ->
 	    report_error("in module `~w': "
-			 "multiply imported functions: ~p.",
+			 "multiply imported functions: ~tp.",
 			 [Name, Ns]),
 	    exit(error)
     end.
@@ -2968,7 +2968,7 @@ filename([]) ->
 filename(N) when is_atom(N) ->
     atom_to_list(N);
 filename(N) ->
-    report_error("bad filename: `~P'.", [N, 25]),
+    report_error("bad filename: `~tP'.", [N, 25]),
     exit(error).
 
 duplicates(Xs) ->
@@ -3031,7 +3031,7 @@ split_lines_1(Cs, Cs1, Ls) ->
 %% Reporting
 
 warning_unsafe_call(Name, Module, Target) ->
-    report_warning("call to `~w' in module `~w' "
+    report_warning("call to `~tw' in module `~w' "
 		   "possibly unsafe in `~s'.", [Name, Module, Target]).
 
 warning_apply_2(Module, Target) ->
diff --git a/lib/syntax_tools/src/merl.erl b/lib/syntax_tools/src/merl.erl
index d6cf208998..b503944442 100644
--- a/lib/syntax_tools/src/merl.erl
+++ b/lib/syntax_tools/src/merl.erl
@@ -565,13 +565,13 @@ parse_5(Ts, Es) ->
 -dialyzer({nowarn_function, parse_error/1}). % no local return
 
 parse_error({L, M, R}) when is_atom(M), is_integer(L) ->
-    fail("~w: ~s", [L, M:format_error(R)]);
+    fail("~w: ~ts", [L, M:format_error(R)]);
 parse_error({{L,C}, M, R}) when is_atom(M), is_integer(L), is_integer(C) ->
-    fail("~w:~w: ~s", [L,C,M:format_error(R)]);
+    fail("~w:~w: ~ts", [L,C,M:format_error(R)]);
 parse_error({_, M, R}) when is_atom(M) ->
     fail(M:format_error(R));
 parse_error(R) ->
-    fail("unknown parse error: ~p", [R]).
+    fail("unknown parse error: ~tp", [R]).
 
 %% ------------------------------------------------------------------------
 %% Templates, substitution and matching
diff --git a/lib/syntax_tools/src/merl_transform.erl b/lib/syntax_tools/src/merl_transform.erl
index b298bc407f..571d7e4d86 100644
--- a/lib/syntax_tools/src/merl_transform.erl
+++ b/lib/syntax_tools/src/merl_transform.erl
@@ -196,7 +196,7 @@ var_name(V) -> V.
 
 var_to_tag(V) when is_integer(V) -> V;
 var_to_tag(V) ->
-    list_to_atom(string:to_lower(atom_to_list(V))).
+    list_to_atom(string:lowercase(atom_to_list(V))).
 
 pre_expand_case(Expr, Clauses, Line) ->
     merl:qquote(Line, "merl:switch(_@expr, _@clauses)",
diff --git a/lib/syntax_tools/src/syntax_tools.app.src b/lib/syntax_tools/src/syntax_tools.app.src
index 5c6008a5f0..af50b7495b 100644
--- a/lib/syntax_tools/src/syntax_tools.app.src
+++ b/lib/syntax_tools/src/syntax_tools.app.src
@@ -18,4 +18,4 @@
   {applications, [stdlib]},
   {env, []},
   {runtime_dependencies,
-   ["compiler-7.0","erts-8.0","kernel-5.0","stdlib-3.0"]}]}.
+   ["compiler-7.0","erts-9.0","kernel-5.0","stdlib-3.4"]}]}.
diff --git a/lib/syntax_tools/vsn.mk b/lib/syntax_tools/vsn.mk
index 9b33f1e1f4..e0880d61ee 100644
--- a/lib/syntax_tools/vsn.mk
+++ b/lib/syntax_tools/vsn.mk
@@ -1 +1 @@
-SYNTAX_TOOLS_VSN = 2.1.2
+SYNTAX_TOOLS_VSN = 2.1.3
diff --git a/lib/tools/doc/src/Makefile b/lib/tools/doc/src/Makefile
index d9c3b0ad2a..7011f869cd 100644
--- a/lib/tools/doc/src/Makefile
+++ b/lib/tools/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 1997-2016. All Rights Reserved.
+# Copyright Ericsson AB 1997-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -47,9 +47,9 @@ XML_REF3_FILES = \
 	make.xml \
 	tags.xml \
 	xref.xml \
-	erlang_mode.xml  
+	erlang_mode.xml
 
-XML_PART_FILES = part.xml part_notes.xml part_notes_history.xml
+XML_PART_FILES = part.xml
 
 XML_CHAPTER_FILES = \
 	cover_chapter.xml \
@@ -86,9 +86,9 @@ HTML_REF_MAN_FILE = $(HTMLDIR)/index.html
 TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
+XML_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -108,17 +108,17 @@ man: $(MAN3_FILES)
 
 gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
 	rm -f $(MAN3DIR)/*
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -132,4 +132,3 @@ release_docs_spec: docs
 	$(INSTALL_DATA) $(MAN3DIR)/* "$(RELEASE_PATH)/man/man3"
 
 release_spec:
-
diff --git a/lib/tools/doc/src/fascicules.xml b/lib/tools/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/tools/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/tools/doc/src/lcnt.xml b/lib/tools/doc/src/lcnt.xml
index 922c2ac0f4..5bdfc60448 100644
--- a/lib/tools/doc/src/lcnt.xml
+++ b/lib/tools/doc/src/lcnt.xml
@@ -471,7 +471,7 @@
                     <c>lcnt:rt_opt/2</c>.
                 </p>
                 <p>Valid categories are:</p>
-                <taglist>
+                <list>
                     <item><c>allocator</c></item>
                     <item><c>db</c> (ETS tables)</item>
                     <item><c>debug</c></item>
@@ -480,7 +480,7 @@
                     <item><c>io</c></item>
                     <item><c>process</c></item>
                     <item><c>scheduler</c></item>
-                </taglist>
+                </list>
                 <p>
                     This list is subject to change at any time, as is the category any given lock
                     may belong to.
diff --git a/lib/tools/doc/src/note.gif b/lib/tools/doc/src/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/lib/tools/doc/src/note.gif
+++ /dev/null
diff --git a/lib/tools/doc/src/notes.xml b/lib/tools/doc/src/notes.xml
index f0df43bf2b..3eaa2058a0 100644
--- a/lib/tools/doc/src/notes.xml
+++ b/lib/tools/doc/src/notes.xml
@@ -31,6 +31,75 @@
   </header>
   <p>This document describes the changes made to the Tools application.</p>
 
+<section><title>Tools 2.11</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+	    <p> The predefined Xref analysis <c>locals_not_used</c>
+	    no longer reports unused functions with the
+	    <c>-on_load()</c> attribute.</p> <p> The new predefined
+	    Xref variable <c>OL</c> holds all functions with the
+	    <c>-on_load()</c> attribute. </p>
+          <p>
+	    Own Id: OTP-14344</p>
+        </item>
+        <item>
+          <p>
+	    In fprof when sampling multiple processes and analyzing
+	    with totals set to true, the output now sums together all
+	    caller and callee entries which concerns the same
+	    function. Previous behaviour was to report each
+	    contributing entry separately.</p>
+          <p>
+	    Own Id: OTP-14500</p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+	    <p>Lock counting can now be fully toggled at runtime in
+	    the lock counting emulator (<c>-emu_type lcnt</c>).
+	    Everything is enabled by default to match the old
+	    behavior, but specific categories can be toggled at will
+	    with minimal runtime overhead when disabled. Refer to the
+	    documentation on <c>lcnt:rt_mask/1</c> for details.</p>
+          <p>
+	    Own Id: OTP-13170</p>
+        </item>
+        <item>
+	    <p><c>lcnt:collect</c> and <c>lcnt:clear</c> will no
+	    longer block all other threads in the runtime system.</p>
+          <p>
+	    Own Id: OTP-14412</p>
+        </item>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+        <item>
+          <p>
+	    Tools are updated to show Unicode atoms correctly.</p>
+          <p>
+	    Own Id: OTP-14464</p>
+        </item>
+        <item>
+	    <p>Add <c>erlang:iolist_to_iovec/1</c>, which converts an
+	    iolist() to an erlang:iovec(), which suitable for use
+	    with <c>enif_inspect_iovec</c>.</p>
+          <p>
+	    Own Id: OTP-14520</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Tools 2.10.1</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/tools/doc/src/part_notes.xml b/lib/tools/doc/src/part_notes.xml
deleted file mode 100644
index c4c6fa4d7d..0000000000
--- a/lib/tools/doc/src/part_notes.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Tools Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The <em>Tools</em> application contains a number of stand-alone
-      tools, which are useful when developing Erlang programs.</p>
-    <p>For information about older versions, see
-      <url href="part_notes_history_frame.html">Release Notes History</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/tools/doc/src/part_notes_history.xml b/lib/tools/doc/src/part_notes_history.xml
deleted file mode 100644
index a34e35fc56..0000000000
--- a/lib/tools/doc/src/part_notes_history.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part>
-  <header>
-    <copyright>
-      <year>2006</year>
-      <year>2016</year>
-      <holder>Ericsson AB, All Rights Reserved</holder>
-    </copyright>
-    <legalnotice>
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
- 
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-  The Initial Developer of the Original Code is Ericsson AB.
-    </legalnotice>
-
-    <title>Tools Release Notes History</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The <em>Tools</em> application contains a number of stand-alone
-      tools, which are useful when developing Erlang programs.</p>
-  </description>
-  <include file="notes_history"></include>
-</part>
-
diff --git a/lib/tools/doc/src/venn2.fig b/lib/tools/doc/src/venn2.fig
index 3694c12f0c..233686a729 100644
--- a/lib/tools/doc/src/venn2.fig
+++ b/lib/tools/doc/src/venn2.fig
@@ -1,4 +1,4 @@
-#FIG 3.2
+#FIG 3.2  Produced by xfig version 3.2.5c
 Portrait
 Center
 Inches
@@ -7,34 +7,7 @@ Letter
 Single
 -2
 1200 2
-6 3392 953 5034 3329
-6 3392 953 5034 2595
-6 3392 953 5034 2595
-5 1 0 1 -1 7 0 0 -1 0.000 0 0 0 0 2652.489 1773.500 3518 1357 3613 1774 3518 2190
-5 1 0 1 -1 7 0 0 -1 0.000 0 0 0 0 6306.956 1773.000 4028 2575 3891 1774 4028 971
-5 1 0 1 -1 7 0 0 -1 0.000 0 0 0 0 2105.283 1773.000 4402 971 4538 1774 4402 2575
-1 1 0 1 -1 7 0 0 -1 0.000 1 0.0000 4214 1774 820 821 4214 1774 3659 1171
-2 1 0 1 -1 7 0 0 -1 0.000 0 0 -1 0 0 1
-	 4821 2325
-2 1 0 1 -1 7 0 0 -1 0.000 0 0 -1 0 0 2
-	 4816 1217 4816 2329
-2 1 0 1 -1 7 0 0 -1 0.000 0 0 7 0 0 2
-	 3392 1769 4816 1769
-2 1 0 1 0 0 100 0 1 0.000 0 0 -1 0 0 2
-	 4816 1982 5008 1982
--6
-2 3 0 0 0 0 101 0 5 0.000 0 0 -1 0 0 36
-	 4026 977 4011 1025 3996 1072 3981 1120 3966 1177 3954 1225
-	 3944 1272 3929 1327 3919 1412 3909 1477 3899 1540 3894 1592
-	 3894 1642 3891 1697 3889 1742 3889 1770 3394 1767 3396 1717
-	 3399 1665 3409 1610 3424 1555 3439 1502 3464 1440 3489 1390
-	 3516 1340 3551 1292 3584 1250 3631 1200 3679 1150 3731 1110
-	 3801 1065 3869 1030 3931 1005 3986 982 4009 980 4026 977
--6
-4 0 0 101 0 0 11 0.0000 4 105 525 3965 3044 X - XU\001
-4 0 0 101 0 0 11 0.0000 4 150 1110 3688 3299 exports_not_used\001
--6
-6 5850 938 7560 3329
+6 5850 938 8070 3344
 6 5884 938 7526 2580
 6 5884 938 7526 2580
 5 1 0 1 -1 7 0 0 -1 0.000 0 0 0 0 5144.489 1758.500 6010 1342 6105 1759 6010 2175
@@ -63,8 +36,8 @@ Single
 	 7019 1990 7022 1945 7027 1900 7029 1855 7029 1805 7032 1765
 	 7029 1752 7309 1757
 -6
-4 0 0 101 0 0 11 0.0000 4 135 1470 6000 3014 L * (UU + (XU - LU))\001
-4 0 0 101 0 0 11 0.0000 4 150 1800 5850 3299 locals_not_used (simplified)\001
+4 0 0 101 0 0 11 0.0000 4 180 2070 6000 3014 (L-OL) * (UU + (XU-LU))\001
+4 0 0 101 0 0 11 0.0000 4 180 2160 5850 3299 locals_not_used (simplified)\001
 -6
 6 900 900 2550 3600
 6 900 900 2550 2625
@@ -91,7 +64,34 @@ Single
 	 2330 1222 2365 1265 2402 1317 2437 1382 2477 1455 2500 1517
 	 2520 1585 2532 1645 2540 1712 2542 1780 2540 1842 2535 1907
 	 2527 1957 2517 1990 2325 1987 2330 1222
-4 0 0 101 0 0 11 0.0000 4 105 780 1331 3044 XU - X - B\001
-4 0 0 101 0 0 11 0.0000 4 150 1260 1113 3314 undefined_functions\001
+4 0 0 101 0 0 11 0.0000 4 135 825 1331 3044 XU - X - B\001
+4 0 0 101 0 0 11 0.0000 4 180 1530 1113 3314 undefined_functions\001
 4 0 0 100 0 0 10 0.0000 4 135 1005 1275 3525 (modules mode)\001
 -6
+6 3392 953 5034 3329
+6 3392 953 5034 2595
+6 3392 953 5034 2595
+5 1 0 1 -1 7 0 0 -1 0.000 0 0 0 0 2652.489 1773.500 3518 1357 3613 1774 3518 2190
+5 1 0 1 -1 7 0 0 -1 0.000 0 0 0 0 6306.956 1773.000 4028 2575 3891 1774 4028 971
+5 1 0 1 -1 7 0 0 -1 0.000 0 0 0 0 2105.283 1773.000 4402 971 4538 1774 4402 2575
+1 1 0 1 -1 7 0 0 -1 0.000 1 0.0000 4214 1774 820 821 4214 1774 3659 1171
+2 1 0 1 -1 7 0 0 -1 0.000 0 0 -1 0 0 1
+	 4821 2325
+2 1 0 1 -1 7 0 0 -1 0.000 0 0 -1 0 0 2
+	 4816 1217 4816 2329
+2 1 0 1 -1 7 0 0 -1 0.000 0 0 7 0 0 2
+	 3392 1769 4816 1769
+2 1 0 1 0 0 100 0 1 0.000 0 0 -1 0 0 2
+	 4816 1982 5008 1982
+-6
+2 3 0 0 0 0 101 0 5 0.000 0 0 -1 0 0 36
+	 4026 977 4011 1025 3996 1072 3981 1120 3966 1177 3954 1225
+	 3944 1272 3929 1327 3919 1412 3909 1477 3899 1540 3894 1592
+	 3894 1642 3891 1697 3889 1742 3889 1770 3394 1767 3396 1717
+	 3399 1665 3409 1610 3424 1555 3439 1502 3464 1440 3489 1390
+	 3516 1340 3551 1292 3584 1250 3631 1200 3679 1150 3731 1110
+	 3801 1065 3869 1030 3931 1005 3986 982 4009 980 4026 977
+-6
+4 0 0 101 0 0 11 0.0000 4 135 555 3965 3044 X - XU\001
+4 0 0 101 0 0 11 0.0000 4 180 1350 3688 3299 exports_not_used\001
+-6
diff --git a/lib/tools/doc/src/venn2.gif b/lib/tools/doc/src/venn2.gif
index 4cfea24646..bb12f4bd1f 100644
--- a/lib/tools/doc/src/venn2.gif
+++ b/lib/tools/doc/src/venn2.gif
diff --git a/lib/tools/doc/src/warning.gif b/lib/tools/doc/src/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/lib/tools/doc/src/warning.gif
+++ /dev/null
diff --git a/lib/tools/doc/src/xref.xml b/lib/tools/doc/src/xref.xml
index 8c49f3a206..6f833246ad 100644
--- a/lib/tools/doc/src/xref.xml
+++ b/lib/tools/doc/src/xref.xml
@@ -4,7 +4,7 @@
 <erlref>
   <header>
     <copyright>
-      <year>2000</year><year>2016</year>
+      <year>2000</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -347,6 +347,9 @@ represented by
       <item>Locally Used Functions (*). Functions of all modules that have
        been used in some local call.
       </item>
+      <tag><c>OL</c></tag>
+      <item>Functions with an attribute tag <c>on_load</c> (*).
+      </item>
       <tag><c>LC</c></tag>
       <item>Local Calls (*).</item>
       <tag><c>XC</c></tag>
@@ -393,6 +396,7 @@ facts about the
       <c>LU</c> and <c>XU</c> may have elements in common. Put in
        another way:</item>
       <item><c>V</c> is equal to <c>UU + XU + LU</c>.</item>
+      <item><c>OL</c> is a subset of <c>F</c>.</item>
       <item><c>E</c> is equal to <c>LC + XC</c>. Note that <c>LC</c>
        and <c>XC</c> may have elements in common, namely if some
        function is locally and externally used from one and the same
@@ -559,8 +563,10 @@ Two functions (modules,
       analyzing operators:
       </p>
     <list type="bulleted">
-      <item>Expression ::= Expression GraphOp Expression</item>
-      <item>GraphOp ::= <c>components</c> | <c>condensation</c> | <c>of</c></item>
+      <item>Expression ::= Expression BinaryGraphOp Expression</item>
+      <item>Expression ::= UnaryGraphOp Expression</item>
+      <item>UnaryGraphOp ::= <c>components</c> | <c>condensation</c></item>
+      <item>BinaryGraphOp ::= <c>of</c></item>
     </list>
     <p>As was mentioned before, the graph analyses operate on
       the <c>digraph</c> representation of graphs.
diff --git a/lib/tools/emacs/erlang.el b/lib/tools/emacs/erlang.el
index 012de479d3..429188b028 100644
--- a/lib/tools/emacs/erlang.el
+++ b/lib/tools/emacs/erlang.el
@@ -1,10 +1,10 @@
-;;; erlang.el --- Major modes for editing and running Erlang
+;;; erlang.el --- Major modes for editing and running Erlang -*- lexical-binding: t; -*-
 
 ;; Copyright (C) 2004  Free Software Foundation, Inc.
 ;; Author:   Anders Lindgren
 ;; Keywords: erlang, languages, processes
 ;; Date:     2011-12-11
-;; Version:  2.7.0
+;; Version:  2.8.0
 ;; Package-Requires: ((emacs "24.1"))
 
 ;; %CopyrightBegin%
@@ -84,7 +84,7 @@
   "The Erlang programming language."
   :group 'languages)
 
-(defconst erlang-version "2.7"
+(defconst erlang-version "2.8.0"
   "The version number of Erlang mode.")
 
 (defcustom erlang-root-dir nil
@@ -900,6 +900,11 @@ resulting regexp is surrounded by \\_< and \\_>."
       "display"
       "display_nl"
       "display_string"
+      "dist_get_stat"
+      "dist_ctrl_get_data"
+      "dist_ctrl_get_data_notification"
+      "dist_ctrl_input_handler"
+      "dist_ctrl_put_data"
       "dist_exit"
       "dlink"
       "dmonitor_node"
@@ -931,6 +936,7 @@ resulting regexp is surrounded by \\_< and \\_>."
       "has_prepared_code_on_load"
       "hibernate"
       "insert_element"
+      "iolist_to_iovec"
       "is_builtin"
       "load_nif"
       "loaded"
@@ -1019,26 +1025,15 @@ files written in other languages than Erlang.")
 If nil, the inferior shell replaces the window. This is the traditional
 behaviour.")
 
-(defconst inferior-erlang-use-cmm (boundp 'minor-mode-overriding-map-alist)
-  "Non-nil means use `compilation-minor-mode' in Erlang shell.")
-
 (defvar erlang-mode-map
   (let ((map (make-sparse-keymap)))
-    (unless (boundp 'indent-line-function)
-      (define-key map "\t"        'erlang-indent-command))
     (define-key map ";"       'erlang-electric-semicolon)
     (define-key map ","       'erlang-electric-comma)
     (define-key map "<"         'erlang-electric-lt)
     (define-key map ">"         'erlang-electric-gt)
     (define-key map "\C-m"      'erlang-electric-newline)
-    (if (not (boundp 'delete-key-deletes-forward))
-        (define-key map "\177" 'backward-delete-char-untabify)
-      (define-key map [(backspace)] 'backward-delete-char-untabify))
-    ;;(unless (boundp 'fill-paragraph-function)
+    (define-key map [(backspace)] 'backward-delete-char-untabify)
     (define-key map "\M-q"      'erlang-fill-paragraph)
-    (unless (boundp 'beginning-of-defun-function)
-      (define-key map "\M-\C-a"   'erlang-beginning-of-function)
-      (define-key map "\M-\C-e"   'erlang-end-of-function))
     (define-key map "\M-\t"     'erlang-complete-tag)
     (define-key map "\C-c\M-\t" 'tempo-complete-tag)
     (define-key map "\M-+"      'erlang-find-next-tag)
@@ -1057,8 +1052,6 @@ behaviour.")
     (define-key map "\C-c\C-y"  'erlang-clone-arguments)
     (define-key map "\C-c\C-a"  'erlang-align-arrows)
     (define-key map "\C-c\C-z"  'erlang-shell-display)
-    (unless inferior-erlang-use-cmm
-      (define-key map "\C-x`"    'erlang-next-error))
     map)
   "Keymap used in Erlang mode.")
 (defvar erlang-mode-abbrev-table nil
@@ -2083,12 +2076,6 @@ This function is aware of imported functions."
            (when funcname
              (erlang-man-find-function (current-buffer) funcname))))))
 
-(defun erlang-default-function-or-module ()
-  (let ((id (erlang-get-identifier-at-point)))
-    (if (eq (erlang-id-kind id) 'qualified-function)
-        (format "%s:%s" (erlang-id-module id) (erlang-id-name id))
-      (erlang-id-name id))))
-
 
 ;; Should the defadvice be at the top level, the package `advice' would
 ;; be required.  Now it is only required when this functionality
@@ -3396,14 +3383,6 @@ at the end."
 
 ;;; Information retrieval functions.
 
-(defun erlang-buffer-substring (beg end)
-  "Like `buffer-substring-no-properties'.
-Although, this function works on all versions of Emacs."
-  (if (fboundp 'buffer-substring-no-properties)
-      (funcall (symbol-function 'buffer-substring-no-properties) beg end)
-    (buffer-substring beg end)))
-
-
 (defun erlang-get-module ()
   "Return the name of the module as specified by `-module'.
 
@@ -3421,7 +3400,7 @@ Return nil if file contains no `-module' attribute."
                            "\\)?\\)\\s *)\\s *\\."))
                  (point-max) t)
                 (erlang-remove-quotes
-                 (erlang-buffer-substring (match-beginning 1)
+                 (buffer-substring-no-properties (match-beginning 1)
                                           (match-end 1)))
               nil)
           (store-match-data md))))))
@@ -3475,10 +3454,10 @@ corresponds to the order of the parsed Erlang list."
                    (setq res (cons
                               (cons
                                (erlang-remove-quotes
-                                (erlang-buffer-substring
+                                (buffer-substring-no-properties
                                  (match-beginning 1) (match-end 1)))
                                (string-to-number
-                                (erlang-buffer-substring
+                                (buffer-substring-no-properties
                                  (match-beginning
                                   (+ 1 erlang-atom-regexp-matches))
                                  (match-end
@@ -3525,7 +3504,7 @@ function and arity as cdr part."
               (erlang-skip-blank)
               (if (looking-at erlang-atom-regexp)
                   (let ((module (erlang-remove-quotes
-                                 (erlang-buffer-substring
+                                 (buffer-substring-no-properties
                                   (match-beginning 0)
                                   (match-end 0)))))
                     (goto-char (match-end 0))
@@ -3558,7 +3537,7 @@ Normally used in conjunction with `erlang-beginning-of-clause', e.g.:
   (let ((n (if arg 0 1)))
     (and (looking-at (eval-when-compile
                        (concat "^" erlang-atom-regexp "\\s *(")))
-         (erlang-buffer-substring (match-beginning n) (match-end n)))))
+         (buffer-substring-no-properties (match-beginning n) (match-end n)))))
 
 
 (defun erlang-get-function-arrow ()
@@ -3572,7 +3551,7 @@ Normally used in conjunction with `erlang-beginning-of-clause', e.g.:
   (and
    (save-excursion
      (re-search-forward "->" (point-max) t)
-     (erlang-buffer-substring (- (point) 2) (+ (point) 1)))))
+     (buffer-substring-no-properties (- (point) 2) (+ (point) 1)))))
 
 (defun erlang-get-function-arity ()
   "Return the number of arguments of function at point, or nil."
@@ -3638,7 +3617,7 @@ The return value is a string of the form \"foo/1\"."
           (let ((start (match-end 0)))
             (goto-char (- start 1))
             (forward-sexp)
-            (erlang-buffer-substring start (- (point) 1)))
+            (buffer-substring-no-properties start (- (point) 1)))
         (error nil)))))
 
 
@@ -3703,10 +3682,10 @@ of arguments could be found, otherwise nil."
 (defun erlang-get-qualified-function-id-at-point ()
   (let ((kind 'qualified-function)
         (module (erlang-remove-quotes
-                 (erlang-buffer-substring
+                 (buffer-substring-no-properties
                   (match-beginning 1) (match-end 1))))
         (name (erlang-remove-quotes
-               (erlang-buffer-substring
+               (buffer-substring-no-properties
                 (match-beginning (1+ erlang-atom-regexp-matches))
                 (match-end (1+ erlang-atom-regexp-matches)))))
         (arity (progn
@@ -3718,14 +3697,14 @@ of arguments could be found, otherwise nil."
   (let ((kind 'module)
         (module nil)
         (name (erlang-remove-quotes
-               (erlang-buffer-substring (match-beginning 1)
+               (buffer-substring-no-properties (match-beginning 1)
                                         (match-end 1))))
         (arity nil))
     (list kind module name arity)))
 
 (defun erlang-get-some-other-id-at-point ()
   (let ((name (erlang-remove-quotes
-               (erlang-buffer-substring
+               (buffer-substring-no-properties
                 (match-beginning 0) (match-end 0))))
         (imports (erlang-get-import))
         kind module arity)
@@ -3792,6 +3771,21 @@ of arguments could be found, otherwise nil."
   (nth 3 (erlang-id-to-list id)))
 
 
+(defun erlang-default-function-or-module ()
+  (erlang-with-id (kind module name) (erlang-get-identifier-at-point)
+    (let ((x (cond ((eq kind 'module)
+                    (format "%s:" name))
+                   ((eq kind 'record)
+                    (format "-record(%s" name))
+                   ((eq kind 'macro)
+                    (format "-define(%s" name))
+                   (t
+                    name))))
+      (if module
+          (format "%s:%s" module x)
+        x))))
+
+
 ;; TODO: Escape single quotes inside the string without
 ;; replace-regexp-in-string.
 (defun erlang-add-quotes-if-needed (str)
@@ -4999,9 +4993,10 @@ considered first when it is time to jump to the definition.")
   (and (fboundp 'xref-make)
        (fboundp 'xref-make-file-location)
        (let* ((first-time t)
+              (cbuf (current-buffer))
               xrefs matching-files)
          (save-excursion
-           (while (visit-tags-table-buffer (not first-time))
+           (while (erlang-visit-tags-table-buffer (not first-time) cbuf)
              (setq first-time nil)
              (let ((files (tags-table-files)))
                (while files
@@ -5017,6 +5012,10 @@ considered first when it is time to jump to the definition.")
                  (setq files (cdr files))))))
          (nreverse xrefs))))
 
+(defun erlang-visit-tags-table-buffer (cont cbuf)
+  (if (< emacs-major-version 26)
+      (visit-tags-table-buffer cont)
+    (visit-tags-table-buffer cont cbuf)))
 
 (defun erlang-xref-find-definitions-module-tag (module
                                                 tag
@@ -5120,7 +5119,7 @@ Erlang compilation package.")
   "Command to execute to go to the next error.
 
 Change this variable to use your favorite Erlang compilation
-package.  Not used in Emacs 21.")
+package.")
 
 
 ;;;###autoload
@@ -5179,6 +5178,13 @@ future, a new shell on an already running host will be started."
 (defvar erlang-shell-buffer-name "*erlang*"
   "The name of the Erlang link shell buffer.")
 
+(defcustom erlang-shell-prompt-read-only t
+  "If non-nil, the prompt will be read-only.
+
+Also see the description of `ielm-prompt-read-only'."
+  :type 'boolean
+  :package-version '(erlang . "2.8.0"))
+
 (defvar erlang-shell-mode-map nil
   "Keymap used by Erlang shells.")
 
@@ -5219,17 +5225,11 @@ The following special commands are available:
     (setq erlang-shell-mode-map (copy-keymap comint-mode-map))
     (erlang-shell-mode-commands erlang-shell-mode-map))
   (use-local-map erlang-shell-mode-map)
-  (unless inferior-erlang-use-cmm
-    ;; This was originally not a marker, but it needs to be, at least
-    ;; in Emacs 21, and should be backwards-compatible.  Otherwise,
-    ;; would need to test whether compilation-parsing-end is a marker
-    ;; after requiring `compile'.
-    (set (make-local-variable 'compilation-parsing-end) (copy-marker 1))
-    (set (make-local-variable 'compilation-error-list) nil)
-    (set (make-local-variable 'compilation-old-error-list) nil))
   ;; Needed when compiling directly from the Erlang shell.
   (setq compilation-last-buffer (current-buffer))
   (setq comint-prompt-regexp "^[^>=]*> *")
+  (make-local-variable 'comint-prompt-read-only)
+  (setq comint-prompt-read-only erlang-shell-prompt-read-only)
   (setq comint-eol-on-send t)
   (setq comint-input-ignoredups t)
   (setq comint-scroll-show-maximum-output t)
@@ -5243,24 +5243,20 @@ The following special commands are available:
   (comint-read-input-ring t)
   (make-local-variable 'kill-buffer-hook)
   (add-hook 'kill-buffer-hook 'comint-write-input-ring)
-  ;; At least in Emacs 21, we need to be in `compilation-minor-mode'
-  ;; for `next-error' to work.  We can avoid it clobbering the shell
-  ;; keys thus.
-  (when inferior-erlang-use-cmm
-    (compilation-minor-mode 1)
-    (set (make-local-variable 'minor-mode-overriding-map-alist)
-         `((compilation-minor-mode
-            . ,(let ((map (make-sparse-keymap)))
-                 ;; It would be useful to put keymap properties on the
-                 ;; error lines so that we could use RET and mouse-2
-                 ;; on them directly.
-                 (when (boundp 'compilation-skip-threshold) ; new compile.el
-                   (define-key map [mouse-2] #'erlang-mouse-2-command)
-                   (define-key map "\C-m" #'erlang-RET-command))
-                 (if (boundp 'compilation-menu-map)
-                     (define-key map [menu-bar compilation]
-                       (cons "Errors" compilation-menu-map)))
-                 map)))))
+  (compilation-minor-mode 1)
+  (set (make-local-variable 'minor-mode-overriding-map-alist)
+       `((compilation-minor-mode
+          . ,(let ((map (make-sparse-keymap)))
+               ;; It would be useful to put keymap properties on the
+               ;; error lines so that we could use RET and mouse-2
+               ;; on them directly.
+               (when (boundp 'compilation-skip-threshold) ; new compile.el
+                 (define-key map [mouse-2] #'erlang-mouse-2-command)
+                 (define-key map "\C-m" #'erlang-RET-command))
+               (if (boundp 'compilation-menu-map)
+                   (define-key map [menu-bar compilation]
+                     (cons "Errors" compilation-menu-map)))
+               map))))
   (erlang-tags-init)
   (run-hooks 'erlang-shell-mode-hook))
 
@@ -5289,9 +5285,7 @@ Selects Comint or Compilation mode command as appropriate."
   (define-key map "\C-a"     'comint-bol) ; Normally the other way around.
   (define-key map "\C-c\C-a" 'beginning-of-line)
   (define-key map "\C-d"     nil)       ; Was `comint-delchar-or-maybe-eof'
-  (define-key map "\M-\C-m"  'compile-goto-error)
-  (unless inferior-erlang-use-cmm
-    (define-key map "\C-x`"    'erlang-next-error)))
+  (define-key map "\M-\C-m"  'compile-goto-error))
 
 ;;;
 ;;; Inferior Erlang -- Run an Erlang shell as a subprocess.
@@ -5902,35 +5896,6 @@ Tab characters are counted by their visual width."
     (if (looking-at "[a-z0-9_]+")
         (match-string 0))))
 
-;; Aliases for backward compatibility with older versions of Erlang Mode.
-;;
-;; Unfortuantely, older versions of Emacs doesn't have `defalias' and
-;; `make-obsolete' so we have to define our own `obsolete' function.
-
-(defun erlang-obsolete (sym newdef)
-  "Make the obsolete function SYM refer to the defined function NEWDEF.
-
-Simplified version of a combination `defalias' and `make-obsolete',
-it assumes that NEWDEF is loaded."
-  (defalias sym (symbol-function newdef))
-  (make-obsolete sym newdef "long ago"))
-
-
-(erlang-obsolete 'calculate-erlang-indent 'erlang-calculate-indent)
-(erlang-obsolete 'calculate-erlang-stack-indent
-                 'erlang-calculate-stack-indent)
-(erlang-obsolete 'at-erlang-keyword 'erlang-at-keyword)
-(erlang-obsolete 'at-erlang-operator 'erlang-at-operator)
-(erlang-obsolete 'beginning-of-erlang-clause 'erlang-beginning-of-clause)
-(erlang-obsolete 'end-of-erlang-clause 'erlang-end-of-clause)
-(erlang-obsolete 'mark-erlang-clause 'erlang-mark-clause)
-(erlang-obsolete 'beginning-of-erlang-function 'erlang-beginning-of-function)
-(erlang-obsolete 'end-of-erlang-function 'erlang-end-of-function)
-(erlang-obsolete 'mark-erlang-function 'erlang-mark-function)
-(erlang-obsolete 'pass-over-erlang-clause 'erlang-pass-over-function)
-(erlang-obsolete 'name-of-erlang-function 'erlang-name-of-function)
-
-
 (defconst erlang-unload-hook
   (list (lambda ()
           (ad-unadvise 'Man-notify-when-ready)
diff --git a/lib/tools/src/cover.erl b/lib/tools/src/cover.erl
index 5517882ffa..801bbc7461 100644
--- a/lib/tools/src/cover.erl
+++ b/lib/tools/src/cover.erl
@@ -2439,11 +2439,11 @@ do_analyse_to_file1(Module, OutFile, ErlFile, HTML) ->
                    Timestamp =
                        io_lib:format("~p-~s-~s at ~s:~s:~s",
                                      [Y,
-                                      string:right(integer_to_list(Mo), 2, $0),
-                                      string:right(integer_to_list(D),  2, $0),
-                                      string:right(integer_to_list(H),  2, $0),
-                                      string:right(integer_to_list(Mi), 2, $0),
-                                      string:right(integer_to_list(S),  2, $0)]),
+                                      string:pad(integer_to_list(Mo), 2, leading, $0),
+                                      string:pad(integer_to_list(D),  2, leading, $0),
+                                      string:pad(integer_to_list(H),  2, leading, $0),
+                                      string:pad(integer_to_list(Mi), 2, leading, $0),
+                                      string:pad(integer_to_list(S),  2, leading, $0)]),
 
                     H2Bin = unicode:characters_to_binary(
                               ["File generated from ",ErlFile," by COVER ",
@@ -2493,12 +2493,12 @@ print_lines(Module, CovLines, InFd, OutFd, L, HTML) ->
                     if N=:=0, HTML=:=true ->
                            LineNoNL = Line -- "\n",
                            Str = "     0",
-                           %%Str = string:right("0", 6, 32),
+                           %%Str = string:pad("0", 6, leading, $\s),
                            RedLine = ["<font color=red>",Str,fill1(),
                                       LineNoNL,"</font>\n"],
                            ok = file:write(OutFd, RedLine);
                        N < 1000000 ->
-                           Str = string:right(integer_to_list(N), 6, 32),
+                           Str = string:pad(integer_to_list(N), 6, leading, $\s),
                            ok = file:write(OutFd, [Str,fill1(),Line]);
                        N < 10000000 ->
                            Str = integer_to_list(N),
diff --git a/lib/tools/src/eprof.erl b/lib/tools/src/eprof.erl
index 3ae899a078..535ddbcd04 100644
--- a/lib/tools/src/eprof.erl
+++ b/lib/tools/src/eprof.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -246,7 +246,7 @@ handle_call(profile_stop, _From, #state{ profiling = true } = S) ->
 
 %% logfile
 handle_call({logfile, File}, _From, #state{ fd = OldFd } = S) ->
-    case file:open(File, [write]) of
+    case file:open(File, [write, {encoding, utf8}]) of
 	{ok, Fd} ->
 	    case OldFd of
 		undefined -> ok;
@@ -478,11 +478,11 @@ string_bp_mfa([{Mfa, {Count, Time}}|Mfas], Tus, {MfaW, CountW, PercW, TimeW, TpC
 	Stpc   = s("~.2f", [divide(Time,Count)]),
 
 	string_bp_mfa(Mfas, Tus, {
-		erlang:max(MfaW,  length(Smfa)),
-		erlang:max(CountW,length(Scount)),
-		erlang:max(PercW, length(Sperc)),
-		erlang:max(TimeW, length(Stime)),
-		erlang:max(TpCW,  length(Stpc))
+		erlang:max(MfaW,  string:length(Smfa)),
+		erlang:max(CountW,string:length(Scount)),
+		erlang:max(PercW, string:length(Sperc)),
+		erlang:max(TimeW, string:length(Stime)),
+		erlang:max(TpCW,  string:length(Stpc))
 	    }, [[Smfa, Scount, Sperc, Stime, Stpc] | Strings]).
 
 print_bp_mfa(Mfas, {Tn, Tus}, Fd, Opts) ->
@@ -491,11 +491,11 @@ print_bp_mfa(Mfas, {Tn, Tus}, Fd, Opts) ->
     TnStr    = s(Tn),
     TusStr   = s(Tus),
     TuspcStr = s("~.2f", [divide(Tus,Tn)]),
-    Ws = {erlang:max(length("FUNCTION"), MfaW),
-          lists:max([length("CALLS"), CountW, length(TnStr)]),
-          erlang:max(length("      %"), PercW),
-          lists:max([length("TIME"), TimeW, length(TusStr)]),
-          lists:max([length("uS / CALLS"), TpCW, length(TuspcStr)])},
+    Ws = {erlang:max(string:length("FUNCTION"), MfaW),
+          lists:max([string:length("CALLS"), CountW, string:length(TnStr)]),
+          erlang:max(string:length("      %"), PercW),
+          lists:max([string:length("TIME"), TimeW, string:length(TusStr)]),
+          lists:max([string:length("uS / CALLS"), TpCW, string:length(TuspcStr)])},
     format(Fd, Ws, ["FUNCTION", "CALLS", "      %", "TIME", "uS / CALLS"]),
     format(Fd, Ws, ["--------", "-----", "-------", "----", "----------"]),
     lists:foreach(fun (String) -> format(Fd, Ws, String) end, Strs),
@@ -503,13 +503,13 @@ print_bp_mfa(Mfas, {Tn, Tus}, Fd, Opts) ->
     format(Fd, Ws, ["Total:", TnStr, "100.00%", TusStr, TuspcStr]),
     ok.
 
-s({M,F,A}) -> s("~w:~w/~w",[M,F,A]);
-s(Term) -> s("~p", [Term]).
+s({M,F,A}) -> s("~w:~tw/~w",[M,F,A]);
+s(Term) -> s("~tp", [Term]).
 s(Format, Terms) -> lists:flatten(io_lib:format(Format, Terms)).
 
 
 format(Fd, {MfaW, CountW, PercW, TimeW, TpCW}, Strings) ->
-    format(Fd, s("~~.~ps  ~~~ps  ~~~ps  ~~~ps  [~~~ps]~~n", [MfaW, CountW, PercW, TimeW, TpCW]), Strings);
+    format(Fd, s("~~.~wts  ~~~ws  ~~~ws  ~~~ws  [~~~ws]~~n", [MfaW, CountW, PercW, TimeW, TpCW]), Strings);
 format(undefined, Format, Strings) ->
     io:format(Format, Strings),
     ok;
diff --git a/lib/tools/src/fprof.erl b/lib/tools/src/fprof.erl
index 436f68d12b..fb657c2928 100644
--- a/lib/tools/src/fprof.erl
+++ b/lib/tools/src/fprof.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %% 
-%% Copyright Ericsson AB 2001-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2017. All Rights Reserved.
 %% 
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -1136,7 +1136,7 @@ ensure_open(Pid, _Options) when is_pid(Pid) ->
 ensure_open([], _Options) ->
     {already_open, undefined};
 ensure_open(Filename, Options) when is_atom(Filename); is_list(Filename) ->
-    file:open(Filename, Options).
+    file:open(Filename, [{encoding, utf8} | Options]).
 
 %%%---------------------------------
 %%% Fairly generic utility functions
@@ -1475,7 +1475,7 @@ info_suspect_call(GroupLeader, GroupLeader, _, _) ->
     ok;
 info_suspect_call(GroupLeader, _, Func, Pid) ->
     io:format(GroupLeader,
-	      "~nWarning: ~p called in ~p - trace may become corrupt!~n",
+	      "~nWarning: ~tp called in ~p - trace may become corrupt!~n",
 	      parsify([Func, Pid])).
 
 info(GroupLeader, GroupLeader, _, _) ->
@@ -1498,13 +1498,13 @@ dump_stack(Dump, Stack, Term) ->
 			{N, length(hd(Stack))}
 		end
 	end,
-     io:format(Dump, "~s~p.~n", [lists:duplicate(Depth, "  "), parsify(Term)]),
+     io:format(Dump, "~s~tp.~n", [lists:duplicate(Depth, "  "), parsify(Term)]),
     true.
 
 dump(undefined, _) ->
     false;
 dump(Dump, Term) ->
-    io:format(Dump, "~p.~n", [parsify(Term)]),
+    io:format(Dump, "~tp.~n", [parsify(Term)]),
     true.
 
 
@@ -2603,17 +2603,17 @@ println({Io, [W1, W2, W3, W4]}, Head,
 println({Io, _}, Head,
 	[],
 	Tail, Comment) ->
-    io:format(Io, "~s~s~s~n",
+    io:format(Io, "~s~ts~ts~n",
 	      [pad(Head, $ , 3), Tail, Comment]);
 println({Io, _}, Head,
 	{Tag, Term},
 	Tail, Comment) ->
-    io:format(Io, "~s~p, ~p~s~s~n",
+    io:format(Io, "~s~tp, ~tp~ts~ts~n",
 	      [pad(Head, $ , 3), parsify(Tag), parsify(Term), Tail, Comment]);
 println({Io, _}, Head,
 	Term,
 	Tail, Comment) ->
-    io:format(Io, "~s~p~s~s~n",
+    io:format(Io, "~s~tp~ts~ts~n",
 	      [pad(Head, $ , 3), parsify(Term), Tail, Comment]).
 
 
@@ -2720,7 +2720,7 @@ postsort_r([[_|C] | L], R) ->
 flat_format(F, Trailer) when is_float(F) ->
     lists:flatten([io_lib:format("~.3f", [F]), Trailer]);
 flat_format(W, Trailer) ->
-    lists:flatten([io_lib:format("~p", [W]), Trailer]).
+    lists:flatten([io_lib:format("~tp", [W]), Trailer]).
 
 %% Format, flatten, and pad.
 flat_format(Term, Trailer, Width) ->
diff --git a/lib/tools/src/tools.app.src b/lib/tools/src/tools.app.src
index 8beef49bf9..f8c6aa22cb 100644
--- a/lib/tools/src/tools.app.src
+++ b/lib/tools/src/tools.app.src
@@ -40,7 +40,7 @@
   {env, [{file_util_search_methods,[{"", ""}, {"ebin", "esrc"}, {"ebin", "src"}]}
 	]
   },
-  {runtime_dependencies, ["stdlib-3.1","runtime_tools-1.8.14",
+  {runtime_dependencies, ["stdlib-3.4","runtime_tools-1.8.14",
 			  "kernel-5.4","erts-9.1","compiler-5.0"]}
  ]
 }. 
diff --git a/lib/tools/src/xref_base.erl b/lib/tools/src/xref_base.erl
index 8d2cc07e40..a28c6ee283 100644
--- a/lib/tools/src/xref_base.erl
+++ b/lib/tools/src/xref_base.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -400,26 +400,28 @@ analysis(locals_not_used, functions) ->
     %% used (indirectly) from any export: "(domain EE + range EE) * L".
     %% But then we only get locals that make some calls, so we add
     %% locals that are not used at all: "L * (UU + XU - LU)".
-    "L * ((UU + XU - LU) + domain EE + range EE)";
+    %% We also need to exclude functions with the -on_load() attribute:
+    %% (L - OL) is used rather than just L.
+    "(L - OL) * ((UU + XU - LU) + domain EE + range EE)";
 analysis(exports_not_used, _) ->
     %% Local calls are not considered here. "X * UU" would do otherwise.
     "X - XU";
 analysis({call, F}, functions) ->
-    make_query("range (E | ~w : Fun)", [F]);
+    make_query("range (E | ~tw : Fun)", [F]);
 analysis({use, F}, functions) ->
-    make_query("domain (E || ~w : Fun)", [F]);
+    make_query("domain (E || ~tw : Fun)", [F]);
 analysis({module_call, M}, _) ->
-    make_query("range (ME | ~w : Mod)", [M]);
+    make_query("range (ME | ~tw : Mod)", [M]);
 analysis({module_use, M}, _) ->
-    make_query("domain (ME || ~w : Mod)", [M]);
+    make_query("domain (ME || ~tw : Mod)", [M]);
 analysis({application_call, A}, _) ->
-    make_query("range (AE | ~w : App)", [A]);
+    make_query("range (AE | ~tw : App)", [A]);
 analysis({application_use, A}, _) ->
-    make_query("domain (AE || ~w : App)", [A]);
+    make_query("domain (AE || ~tw : App)", [A]);
 analysis({release_call, R}, _) ->
-    make_query("range (RE | ~w : Rel)", [R]);
+    make_query("range (RE | ~tw : Rel)", [R]);
 analysis({release_use, R}, _) ->
-    make_query("domain (RE || ~w : Rel)", [R]);
+    make_query("domain (RE || ~tw : Rel)", [R]);
 analysis(deprecated_function_calls, functions) ->
     "XC || DF";
 analysis({deprecated_function_calls,Flag}, functions) ->
@@ -918,7 +920,7 @@ do_add_module(S, XMod, Unres, Data) ->
     {ok, Ms, Bad, NS}.
 
 prepare_module(_Mode = functions, XMod, Unres0, Data) ->
-    {DefAt0, LPreCAt0, XPreCAt0, LC0, XC0, X0, Attrs, Depr} = Data,
+    {DefAt0, LPreCAt0, XPreCAt0, LC0, XC0, X0, Attrs, Depr, OL0} = Data,
     %% Bad is a list of bad values of 'xref' attributes.
     {ALC0,AXC0,Bad0} = Attrs,
     FT = [tspec(func)],
@@ -935,6 +937,7 @@ prepare_module(_Mode = functions, XMod, Unres0, Data) ->
     ALC1 = xref_utils:xset(ALC0, PCA),
     UnresCalls = xref_utils:xset(Unres0, PCA),
     Unres = domain(UnresCalls),
+    OL1 = xref_utils:xset(OL0, FT),
 
     DefinedFuns = domain(DefAt),
     {AXC, ALC, Bad1, LPreCAt2, XPreCAt2} =
@@ -955,7 +958,7 @@ prepare_module(_Mode = functions, XMod, Unres0, Data) ->
     {DF1,DF_11,DF_21,DF_31,DBad} = depr_mod(Depr, X),
     {EE, ECallAt} = inter_graph(X, L, LC, XC, CallAt),
     {ok, {functions, XMod, [DefAt,L,X,LCallAt,XCallAt,CallAt,LC,XC,EE,ECallAt,
-                            DF1,DF_11,DF_21,DF_31], NoCalls, Unres},
+                            OL1,DF1,DF_11,DF_21,DF_31], NoCalls, Unres},
      DBad++Bad};
 prepare_module(_Mode = modules, XMod, _Unres, Data) ->
     {X0, I0, Depr} = Data,
@@ -967,7 +970,7 @@ prepare_module(_Mode = modules, XMod, _Unres, Data) ->
 finish_module({functions, XMod, List, NoCalls, Unres}, S) ->
     ok  = check_module(XMod, S),
     [DefAt2,L2,X2,LCallAt2,XCallAt2,CallAt2,LC2,XC2,EE2,ECallAt2,
-     DF2,DF_12,DF_22,DF_32] = pack(List),
+     OL2,DF2,DF_12,DF_22,DF_32] = pack(List),
 
     LU = range(LC2),
 
@@ -976,7 +979,7 @@ finish_module({functions, XMod, List, NoCalls, Unres}, S) ->
     M = XMod#xref_mod.name,
     MS = xref_utils:xset(M, atom),
     T = from_sets({MS,DefAt2,L2,X2,LCallAt2,XCallAt2,CallAt2,
-		   LC2,XC2,LU,EE2,ECallAt2,Unres,LPredefined,
+		   LC2,XC2,LU,EE2,ECallAt2,Unres,LPredefined,OL2,
                    DF2,DF_12,DF_22,DF_32}),
 
     NoUnres = XMod#xref_mod.no_unresolved,
@@ -1220,7 +1223,7 @@ do_set_up(S, VerboseOpt) ->
 
 %% If data has been supplied using add_module/9 (and that is the only
 %% sanctioned way), then DefAt, L, X, LCallAt, XCallAt, CallAt, XC, LC,
-%% and LU are  guaranteed to be functions (with all supplied
+%% LU and OL are  guaranteed to be functions (with all supplied
 %% modules as domain (disregarding unknown modules, that is, modules
 %% not supplied but hosting unknown functions)).
 %% As a consequence, V and E are also functions. V is defined for unknown
@@ -1233,8 +1236,8 @@ do_set_up(S, VerboseOpt) ->
 do_set_up(S) when S#xref.mode =:= functions ->
     ModDictList = dict:to_list(S#xref.modules),
     [DefAt0, L, X0, LCallAt, XCallAt, CallAt, LC, XC, LU,
-     EE0, ECallAt, UC, LPredefined,
-     Mod_DF,Mod_DF_1,Mod_DF_2,Mod_DF_3] = make_families(ModDictList, 18),
+     EE0, ECallAt, UC, LPredefined, OL,
+     Mod_DF,Mod_DF_1,Mod_DF_2,Mod_DF_3] = make_families(ModDictList, 19),
 
     {XC_1, XU, XPredefined} = do_set_up_1(XC),
     LC_1 = user_family(union_of_family(LC)),
@@ -1314,13 +1317,14 @@ do_set_up(S) when S#xref.mode =:= functions ->
     UC_1 = user_family(union_of_family(UC)),
 
     ?FORMAT("DefAt ~p~n", [DefAt]),
-    ?FORMAT("U=~p~nLib=~p~nB=~p~nLU=~p~nXU=~p~nUU=~p~n", [U,Lib,B,LU,XU,UU]),
+    ?FORMAT("U=~p~nLib=~p~nB=~p~nLU=~p~nXU=~p~nUU=~p~nOL=~p~n",
+            [U,Lib,B,LU,XU,UU,OL]),
     ?FORMAT("E_1=~p~nLC_1=~p~nXC_1=~p~n", [E_1,LC_1,XC_1]),
     ?FORMAT("EE=~p~nEE_1=~p~nECallAt=~p~n", [EE, EE_1, ECallAt]),
     ?FORMAT("DF=~p~nDF_1=~p~nDF_2=~p~nDF_3=~p~n", [DF, DF_1, DF_2, DF_3]),
 
     Vs = [{'L',L}, {'X',X},{'F',F},{'U',U},{'B',B},{'UU',UU},
-	  {'XU',XU},{'LU',LU},{'V',V},{v,V},
+	  {'XU',XU},{'LU',LU},{'V',V},{v,V},{'OL',OL},
 	  {'LC',{LC,LC_1}},{'XC',{XC,XC_1}},{'E',{E,E_1}},{e,{E,E_1}},
 	  {'EE',{EE,EE_1}},{'UC',{UC,UC_1}},
 	  {'M',M},{'A',A},{'R',R},
@@ -1405,6 +1409,7 @@ var_type('U')    -> {function, vertex};
 var_type('UU')   -> {function, vertex};
 var_type('V')    -> {function, vertex};
 var_type('X')    -> {function, vertex};
+var_type('OL')   -> {function, vertex};
 var_type('XU')   -> {function, vertex};
 var_type('DF')   -> {function, vertex};
 var_type('DF_1') -> {function, vertex};
@@ -1833,9 +1838,9 @@ message(true, What, Arg) ->
 	unreadable ->
 	    io:format("Skipping ~ts (unreadable)~n", [Arg]);
 	xref_attr ->
-	    io:format("~ts: Skipping 'xref' attribute ~w~n", Arg);
+	    io:format("~ts: Skipping 'xref' attribute ~tw~n", Arg);
         depr_attr ->
-            io:format("~ts: Skipping 'deprecated' attribute ~w~n", Arg);
+            io:format("~ts: Skipping 'deprecated' attribute ~tw~n", Arg);
 	lib_search ->
 	    io:format("Scanning library path for BEAM files... ", []);
 	lib_check ->
diff --git a/lib/tools/src/xref_parser.yrl b/lib/tools/src/xref_parser.yrl
index 0711da79e2..5ee6419ff5 100644
--- a/lib/tools/src/xref_parser.yrl
+++ b/lib/tools/src/xref_parser.yrl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -170,7 +170,7 @@ is_prefix_op('#') -> numeric;
 is_prefix_op(_) -> false.
 
 check_regexp(String) ->
-    case re:compile(String) of
+    case re:compile(String, [unicode]) of
 	{ok, _Expr} ->
 	    {regexpr, String};
 	{error, {ErrString, Position}} ->
@@ -274,7 +274,7 @@ mfa2s({M,F,A}) ->
     [c2s(M),':',c2s(F),'/',A].
 
 c2s(C) ->
-    [S] = io_lib:format("~p", [C]),
+    [S] = io_lib:format("~tp", [C]),
     list_to_atom(S).
 
 re(variable) -> ['_'];
diff --git a/lib/tools/src/xref_reader.erl b/lib/tools/src/xref_reader.erl
index 88f92df35a..d28bdb78db 100644
--- a/lib/tools/src/xref_reader.erl
+++ b/lib/tools/src/xref_reader.erl
@@ -42,7 +42,8 @@
 	 %% experimental; -xref(FunEdge) is recognized.
 	 lattrs=[],            % local calls, {{mfa(),mfa()},Line}
 	 xattrs=[],            % external calls, -"-
-	 battrs=[]	       % badly formed xref attributes, term().
+	 battrs=[],	       % badly formed xref attributes, term().
+         on_load               % function name
 	 }).
 
 -include("xref.hrl").
@@ -68,15 +69,26 @@ forms([F | Fs], S) ->
 forms([], S) ->
     #xrefr{module = M, def_at = DefAt,
 	   l_call_at = LCallAt, x_call_at = XCallAt,
-	   el = LC, ex = XC, x = X, df = Depr,
+	   el = LC, ex = XC, x = X, df = Depr, on_load = OnLoad,
+	   lattrs = AL, xattrs = AX, battrs = B, unresolved = U} = S,
+    OL = case OnLoad of
+             undefined -> [];
+             F ->
+                 [{M, F, 0}]
+         end,
+    #xrefr{def_at = DefAt,
+	   l_call_at = LCallAt, x_call_at = XCallAt,
+	   el = LC, ex = XC, x = X, df = Depr, on_load = OnLoad,
 	   lattrs = AL, xattrs = AX, battrs = B, unresolved = U} = S,
     Attrs = {lists:reverse(AL), lists:reverse(AX), lists:reverse(B)},
-    {ok, M, {DefAt, LCallAt, XCallAt, LC, XC, X, Attrs, Depr}, U}.
+    {ok, M, {DefAt, LCallAt, XCallAt, LC, XC, X, Attrs, Depr, OL}, U}.
 
 form({attribute, Line, xref, Calls}, S) -> % experimental
     #xrefr{module = M, function = Fun,
 	   lattrs = L, xattrs = X, battrs = B} = S,
     attr(Calls, erl_anno:line(Line), M, Fun, L, X, B, S);
+form({attribute, _, on_load, {F, 0}}, S) ->
+    S#xrefr{on_load = F};
 form({attribute, _Line, _Attr, _Val}, S) ->
     S;
 form({function, _, module_info, 0, _Clauses}, S) ->
diff --git a/lib/tools/src/xref_utils.erl b/lib/tools/src/xref_utils.erl
index b0c168e018..eca751337b 100644
--- a/lib/tools/src/xref_utils.erl
+++ b/lib/tools/src/xref_utils.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2000-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -557,12 +557,9 @@ subdir(Dir, SubDir, true) ->
 
 %% Avoid "App-01.01" - the zeroes will be lost.
 filename2appl(File) ->
-    Pos = string:rstr(File, "-"),
-    true = Pos > 1,
-    V = string:sub_string(File, Pos+1),
-    true = string:len(V) > 0,
-    VsnT = string:tokens(V, "."),
-    ApplName = string:sub_string(File, 1, Pos-1),
+    [ApplName, V] = string:split(File, "-", trailing),
+    true = string:length(V) > 0,
+    VsnT = string:lexemes(V, "."),
     Vsn = [list_to_integer(Vsn) || Vsn <- VsnT],
     {list_to_atom(ApplName),Vsn}.
 
@@ -638,14 +635,14 @@ neighbours([], G, Fun, VT, L, _V, Vs) ->
     neighbours(Vs, G, Fun, VT, L).
 
 match_list(L, RExpr) ->
-    {ok, Expr} = re:compile(RExpr),
+    {ok, Expr} = re:compile(RExpr, [unicode]),
     filter(fun(E) -> match(E, Expr) end, L).
 
 match_one(VarL, Con, Col) ->
     select_each(VarL, fun(E) -> Con =:= element(Col, E) end).
 
 match_many(VarL, RExpr, Col) ->
-    {ok, Expr} = re:compile(RExpr),    
+    {ok, Expr} = re:compile(RExpr, [unicode]),
     select_each(VarL, fun(E) -> match(element(Col, E), Expr) end).
 
 match(I, Expr) when is_integer(I) ->
@@ -653,7 +650,12 @@ match(I, Expr) when is_integer(I) ->
     {match, [{0,length(S)}]} =:= re:run(S, Expr, [{capture, first}]);
 match(A, Expr) when is_atom(A) ->
     S = atom_to_list(A),
-    {match, [{0,length(S)}]} =:= re:run(S, Expr, [{capture, first}]).
+    case re:run(S, Expr, [{capture, first}]) of
+        {match, [{0,Size}]} ->
+            Size =:= byte_size(unicode:characters_to_binary(S));
+        _ ->
+            false
+    end.
 
 select_each([{Mod,Funs} | L], Pred) ->
     case filter(Pred, Funs) of
diff --git a/lib/tools/test/fprof_SUITE.erl b/lib/tools/test/fprof_SUITE.erl
index affb45b7a6..8fd164a4b3 100644
--- a/lib/tools/test/fprof_SUITE.erl
+++ b/lib/tools/test/fprof_SUITE.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2001-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2001-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -27,7 +27,7 @@
 %% Test suites
 -export([stack_seq/1, tail_seq/1, create_file_slow/1, spawn_simple/1,
          imm_tail_seq/1, imm_create_file_slow/1, imm_compile/1,
-         cpu_create_file_slow/1]).
+         cpu_create_file_slow/1, unicode/1]).
 
 %% Other exports
 -export([create_file_slow/2]).
@@ -59,7 +59,7 @@ all() ->
         false ->
             [stack_seq, tail_seq, create_file_slow, spawn_simple,
              imm_tail_seq, imm_create_file_slow, imm_compile,
-             cpu_create_file_slow]
+             cpu_create_file_slow, unicode]
     end.
 
 
@@ -533,6 +533,17 @@ cpu_create_file_slow(Config) when is_list(Config) ->
     TestResult.
 
 
+unicode(Config) when is_list(Config) ->
+    DataDir = proplists:get_value(data_dir, Config),
+    SourceFile = filename:join(DataDir, "fprof_unicode.erl"),
+    PrivDir = proplists:get_value(priv_dir, Config),
+    AnalysisFile = filename:join(PrivDir, "fprof_unicode.analysis"),
+    {ok, fprof_unicode} = compile:file(SourceFile, [{outdir, PrivDir}]),
+    true = code:add_path(PrivDir),
+    fprof:apply(fprof_unicode, t, []),
+    ok = fprof:profile(dump, AnalysisFile),
+    ok = fprof:analyse(dest, AnalysisFile).
+
 %%%---------------------------------------------------------------------
 %%% Functions to test
 %%%---------------------------------------------------------------------
diff --git a/lib/tools/test/fprof_SUITE_data/fprof_unicode.erl b/lib/tools/test/fprof_SUITE_data/fprof_unicode.erl
new file mode 100644
index 0000000000..8b58efc5fe
--- /dev/null
+++ b/lib/tools/test/fprof_SUITE_data/fprof_unicode.erl
@@ -0,0 +1,36 @@
+-module(fprof_unicode).
+
+-export([t/0, 'кирилли́ческий атом'/0, annan/0, c_break/1,
+        'кирилли́ческий атомB'/1]).
+
+t() ->
+    _Atom = 'кирилли́ческий атом',
+    'кирилли́ческий атом'().
+
+'кирилли́ческий атом'() ->
+    'кирилли́ческий атом'('кирилли́ческий атом').
+
+'кирилли́ческий атом'(_Atom) ->
+    self() ! 'кирилли́ческий атом',
+    G = fun (X) ->
+                catch foo:bar()
+        end,
+    G("кирилли́ческий атом"), % line 17
+    Pid = spawn_link(fun() -> waiting() end),
+    true = register('кирилли́ческий атом', Pid),
+    F = fun() -> 'кирилли́ческий атом' end,
+    F().
+
+annan() ->
+    foo.
+
+waiting() ->
+    receive
+        X -> X
+    end.
+
+c_break(_B) ->
+    true.
+
+'кирилли́ческий атомB'(_B) ->
+    true.
diff --git a/lib/tools/test/xref_SUITE.erl b/lib/tools/test/xref_SUITE.erl
index 057449d4a2..018f632948 100644
--- a/lib/tools/test/xref_SUITE.erl
+++ b/lib/tools/test/xref_SUITE.erl
@@ -50,7 +50,8 @@
 
 -export([analyze/1, basic/1, md/1, q/1, variables/1, unused_locals/1]).
 
--export([format_error/1, otp_7423/1, otp_7831/1, otp_10192/1, otp_13708/1]).
+-export([format_error/1, otp_7423/1, otp_7831/1, otp_10192/1, otp_13708/1,
+         otp_14464/1, otp_14344/1]).
 
 -import(lists, [append/2, flatten/1, keysearch/3, member/2, sort/1, usort/1]).
 
@@ -81,8 +82,10 @@ groups() ->
        update, deprecated, trycatch, fun_mfa,
        fun_mfa_r14, fun_mfa_vars, qlc]},
      {analyses, [],
+
       [analyze, basic, md, q, variables, unused_locals]},
-     {misc, [], [format_error, otp_7423, otp_7831, otp_10192, otp_13708]}].
+     {misc, [], [format_error, otp_7423, otp_7831, otp_10192, otp_13708,
+                 otp_14464, otp_14344]}].
 
 
 init_per_suite(Conf) when is_list(Conf) ->
@@ -1109,27 +1112,16 @@ read_expected(Version) ->
           {POS7+2,{FF,{erlang,spawn_opt,4}}},
           {POS8+1,{FF,{hej,san,1}}},
           {POS8+4,{FF,{a,b,1}}},
-          {POS8+4,{FF,{erlang,apply,2}}},
-          {POS8+5,{FF,{erlang,apply,2}}},
           {POS8+6,{FF,{m,f,1}}},
           {POS9+1,{FF,{read,bi,0}}},
           {POS9+2,{FF,{a,b,1}}},
-          {POS9+2,{FF,{erlang,apply,2}}},
-          {POS9+3,{FF,{erlang,apply,2}}},
-          {POS9+4,{FF,{erlang,apply,2}}},
           {POS9+4,{FF,{erlang,not_a_function,1}}},
           {POS9+5,{FF,{mod,func,2}}},
           {POS9+6,{FF,{erlang,apply,1}}},
-          {POS9+7,{FF,{erlang,apply,2}}},
           {POS9+7,{FF,{math,add3,1}}},
           {POS9+8,{FF,{q,f,1}}},
-          {POS10+4,{FF,{erlang,apply,2}}},
           {POS10+5,{FF,{mod1,fun1,1}}},
-          {POS11+6,{FF,{erlang,apply,2}}},
-          {POS12+1,{FF,{erlang,apply,2}}},
-          {POS12+4,{FF,{erlang,apply,2}}},
           {POS12+5,{FF,{m3,f3,2}}},
-          {POS12+7,{FF,{erlang,apply,2}}},
           {POS13+1,{FF,{dm,df,1}}},
           {POS13+6,{{read,bi,0},{foo,module_info,0}}},
           {POS13+7,{{read,bi,0},{read,module_info,0}}},
@@ -1159,15 +1151,26 @@ read_expected(Version) ->
             {POS3+3,  {FF,{erlang,spawn_link,3}}},
             {POS3+4, {FF,{erlang,spawn_link,3}}},
             {POS6+4, {FF,{erlang,spawn,3}}},
+            {POS8+4,{FF,{erlang,apply,2}}},
+            {POS8+5,{FF,{erlang,apply,2}}},
             {POS8+6,{FF,{erlang,apply,3}}},
             {POS8+7,{FF,{erlang,apply,3}}},
             {POS9+1,{FF,{erlang,apply,3}}},
+            {POS9+2,{FF,{erlang,apply,2}}},
+            {POS9+3,{FF,{erlang,apply,2}}},
+            {POS9+4,{FF,{erlang,apply,2}}},
             {POS9+5,{FF,{erlang,apply,3}}},
+            {POS9+7,{FF,{erlang,apply,2}}},
+            {POS10+4,{FF,{erlang,apply,2}}},
             {POS11+1,{FF,{erlang,apply,3}}},
             {POS11+2,{FF,{erlang,apply,3}}},
             {POS11+3,{FF,{erlang,apply,3}}},
             {POS11+4,{FF,{erlang,apply,3}}},
+            {POS11+6,{FF,{erlang,apply,2}}},
+            {POS12+1,{FF,{erlang,apply,2}}},
+            {POS12+4,{FF,{erlang,apply,2}}},
             {POS12+5,{FF,{erlang,apply,3}}},
+            {POS12+7,{FF,{erlang,apply,2}}},
             {POS12+8,{FF,{erlang,apply,3}}},
             {POS13+5, {{read,bi,0},{erlang,length,1}}},
             {POS14+3, {{read,bi,0},{erlang,length,1}}}],
@@ -2396,7 +2399,6 @@ otp_10192(Conf) when is_list(Conf) ->
     xref:stop(s),
     ok.
 
-%% OTP-10192. Allow filenames with character codes greater than 126.
 otp_13708(Conf) when is_list(Conf) ->
     {ok, _} = start(s),
     ok = xref:set_default(s, [{verbose, true}]),
@@ -2409,6 +2411,60 @@ otp_13708(Conf) when is_list(Conf) ->
     ok = xref:set_library_path(s, [Dir], [{verbose, true}]),
     xref:stop(s).
 
+%% OTP-14464. Unicode atoms.
+otp_14464(Conf) when is_list(Conf) ->
+    Dir = ?copydir,
+
+    File1 = fname(Dir, "a.erl"),
+    MFile1 = fname(Dir, "a"),
+    Beam1 = fname(Dir, "a.beam"),
+    Test1 = "-module(a).
+             -export([ärlig/0, 'кlирилли́ческий атомB'/0]).
+
+              ärlig() ->
+                  'кlирилли́ческий атомB'.
+
+              'кlирилли́ческий атомB'() ->
+                  foo.
+             ",
+    ok = file:write_file(File1, unicode:characters_to_binary(Test1)),
+    {ok, a} = compile:file(File1, [debug_info,{outdir,Dir}]),
+
+    {ok, _} = xref:start(s),
+    {ok, a} = xref:add_module(s, MFile1),
+
+    {ok, [{a,ärlig,0}]} = xref:q(s, 'a:"ärlig"/0'),
+    {ok, [{a,'кlирилли́ческий атомB',0}]} =
+        xref:q(s, 'a:"кlирилли́ческий атомB"/0'),
+
+    xref:stop(s),
+    ok = file:delete(File1),
+    ok = file:delete(Beam1).
+
+%% OTP-14344. -on_load() attribute.
+otp_14344(Conf) when is_list(Conf) ->
+    Dir = ?copydir,
+
+    File1 = fname(Dir, "a.erl"),
+    MFile1 = fname(Dir, "a"),
+    Beam1 = fname(Dir, "a.beam"),
+    Test1 = <<"-module(a).
+               -on_load(doit/0).
+               doit() -> ok.
+              ">>,
+    ok = file:write_file(File1, Test1),
+    {ok, a} = compile:file(File1, [debug_info,{outdir,Dir}]),
+
+    {ok, _} = xref:start(s),
+    {ok, a} = xref:add_module(s, MFile1),
+
+    {ok, [{a,doit,0}]} = xref:q(s, "OL"),
+    {ok, []} = xref:analyze(s, locals_not_used),
+
+    xref:stop(s),
+    ok = file:delete(File1),
+    ok = file:delete(Beam1).
+
 %%%
 %%% Utilities
 %%%
@@ -2483,7 +2539,8 @@ add_module(S, XMod, DefAt, X, LCallAt, XCallAt, XC, LC) ->
     Depr0 = {[], [], [], []},
     DBad = [],
     Depr = {Depr0,DBad},
-    Data = {DefAt, LCallAt, XCallAt, LC, XC, X, Attr, Depr},
+    OL = [],
+    Data = {DefAt, LCallAt, XCallAt, LC, XC, X, Attr, Depr, OL},
     Unres = [],
     {ok, _Module, _Bad, State} =
     xref_base:do_add_module(S, XMod, Unres, Data),
@@ -2564,6 +2621,9 @@ functions_mode_check(S, Info) ->
     %% UU subset F
     {ok, []} = xref:q(S, "UU - F"),
 
+    %% OL subset F
+    {ok, []} = xref:q(S, "OL - F"),
+
     %% ME = (Mod) E
     {ok, ME} = xref:q(S, "ME"),
     {ok, ME} = xref:q(S, "(Mod) E"),
diff --git a/lib/tools/vsn.mk b/lib/tools/vsn.mk
index 831d850217..b9249ae45c 100644
--- a/lib/tools/vsn.mk
+++ b/lib/tools/vsn.mk
@@ -1 +1 @@
-TOOLS_VSN = 2.10.1
+TOOLS_VSN = 2.11
diff --git a/lib/wx/api_gen/gl_gen_erl.erl b/lib/wx/api_gen/gl_gen_erl.erl
index 3ad14825dd..45f5fd8f4c 100644
--- a/lib/wx/api_gen/gl_gen_erl.erl
+++ b/lib/wx/api_gen/gl_gen_erl.erl
@@ -35,6 +35,9 @@
 		   open_write/1, open_write/2, close/0, erl_copyright/0, w/2,
 		   args/3, args/4, strip_name/2]).
 
+
+-define(HTTP_TOP, "https://www.khronos.org/registry/OpenGL-Refpages/").
+
 gl_defines(Defs) ->
     open_write("../include/gl.hrl"),
     erl_copyright(),
@@ -96,7 +99,7 @@ gl_api(Fs) ->
     w("~n%% OPENGL API~n~n", []),
     w("%% This file is generated DO NOT EDIT~n~n", []),
     w("%% @doc  Standard OpenGL api.~n", []),
-    w("%% See <a href=\"http://www.opengl.org/sdk/docs/man/\">www.opengl.org</a>~n",[]),
+    w("%% See <a href=\""++ ?HTTP_TOP ++ "\">www.khronos.org</a>~n",[]),
     w("%%~n", []),
     w("%% Booleans are represented by integers 0 and 1.~n~n", []),
 
@@ -158,7 +161,7 @@ glu_api(Fs) ->
     w("~n%% OPENGL UTILITY API~n~n", []),
     w("%% This file is generated DO NOT EDIT~n~n", []),
     w("%% @doc  A part of the standard OpenGL Utility api.~n", []),
-    w("%% See <a href=\"http://www.opengl.org/sdk/docs/man/\">www.opengl.org</a>~n",[]),
+    w("%% See <a href=\""++ ?HTTP_TOP ++ "\">www.khronos.org</a>~n",[]),
     w("%%~n", []),
     w("%% Booleans are represented by integers 0 and 1.~n~n", []),
 
@@ -300,8 +303,7 @@ gen_doc(Name0, Alt, Export) ->
     Name = doc_name(Name0, Alt),
     case get({doc, Name}) of
 	undefined ->
-	    GLDoc = "http://www.opengl.org/sdk/docs/man/xhtml/",
-	    case parse_doc(Name, _Dir1 ="gl_man4", _Dir2="gl_man2") of
+	    case parse_doc(Name, Dir1 ="gl_man4", Dir2="gl_man2") of
 		{error, _} ->
 		    case reverse(Name) of
 			"BRA" ++ _ -> ok;
@@ -311,13 +313,18 @@ gen_doc(Name0, Alt, Export) ->
 			    %% 	      [Name, Name0, Dir1, Dir2]),
 			    ok
 		    end,
-		    w("%% @doc ~s~n%%~n%% See <a href=\"~s~s.xml\">external</a> documentation.~n",
-		      [Name, GLDoc, Name]);
-		Doc ->
+		    w("%% @doc ~s~n%%~n"
+                      "%% See <a href=\"~s\">external</a> documentation.~n",
+		      [Name, ?HTTP_TOP]);
+		{Found, Doc} ->
+                    {Dir,Ext} = case Found of
+                                    Dir1 -> {"gl4/html", "xhtml"};
+                                    Dir2 -> {"gl2.1/xhtml", "xml"}
+                                end,
 		    put({doc, Name}, Export),
 		    format_doc(Doc, ?LINE_LEN),
-		    w("~n%%~n%% See <a href=\"~s~s.xml\">external</a> documentation.~n",
-		      [GLDoc, Name])
+		    w("~n%%~n%% See <a href=\"~s~s/~s.~s\">external</a> documentation.~n",
+		      [?HTTP_TOP, Dir, Name, Ext])
 	    end;
 	Where ->
 	    w("%% @doc ~n", []),
@@ -327,9 +334,12 @@ gen_doc(Name0, Alt, Export) ->
 parse_doc(Name, Dir1, Dir2) ->
     case gl_scan_doc:file(filename:join(Dir1, Name++".xml"), []) of
 	{error, {_, "no such" ++ _}} ->
-	    gl_scan_doc:file(filename:join(Dir2, Name++".xml"), []);
+	    case gl_scan_doc:file(filename:join(Dir2, Name++".xml"), []) of
+                {error, _} = Err -> Err;
+                Doc -> {Dir2, Doc}
+            end;
 	Doc ->
-	    Doc
+	    {Dir1, Doc}
     end.
 
 format_doc(Strs, Count) when Count < 0 ->
diff --git a/lib/wx/api_gen/gl_scan_doc.erl b/lib/wx/api_gen/gl_scan_doc.erl
index 0a1c25ae13..6ed5438608 100644
--- a/lib/wx/api_gen/gl_scan_doc.erl
+++ b/lib/wx/api_gen/gl_scan_doc.erl
@@ -209,6 +209,10 @@ gen_output({startElement, _Uri, "para", _QName, _Attributes}, #state{gen_output=
 	    State#state{str=[para|Str]}
     end;
 
+gen_output({endElement, _Uri, "para", _QName}, #state{gen_output=true, str=Str} = State) ->
+    %% Pick only the first paragraph in the descriptions
+    State#state{gen_output=false};
+
 %% gen_output({startElement, _Uri, What, _QName, _Attributes}, State) ->
 %%     io:format("Skipped ~s~n",[What]),
 %%     State;
diff --git a/lib/wx/c_src/wxe_driver.c b/lib/wx/c_src/wxe_driver.c
index 5da71818e5..26ae3564e7 100644
--- a/lib/wx/c_src/wxe_driver.c
+++ b/lib/wx/c_src/wxe_driver.c
@@ -33,6 +33,7 @@
 #include <sys/types.h>
 #include <fcntl.h>
 
+#include <assert.h>
 #include "wxe_driver.h"
 
 #define TEMP_BINARY_SIZE 512
@@ -234,13 +235,21 @@ standard_outputv(ErlDrvData drv_data, ErlIOVec* ev)
        sd->max_bins = max;
    }
 
-   if(ev->vsize == 2) {
-      binref->base = ev->iov[1].iov_base;
-      binref->size = ev->iov[1].iov_len;
-      binref->from = driver_caller(sd->port_handle);
-      bin = ev->binv[1];
-      driver_binary_inc_refc(bin); /* Otherwise it could get deallocated */
-      binref->bin = bin;
+   if(ev->size > 0) {
+       assert(ev->vsize == 2 && ev->iov[0].iov_len == 0
+              && "erts changed how the ErlIOVec is structured for outputv");
+       binref->from = driver_caller(sd->port_handle);
+       binref->size = ev->iov[1].iov_len;
+       if(ev->binv[1]) {
+           binref->base = ev->iov[1].iov_base;
+           bin = ev->binv[1];
+           driver_binary_inc_refc(bin); /* Otherwise it could get deallocated */
+       } else {
+           bin = driver_alloc_binary(ev->iov[1].iov_len);
+           memcpy(bin->orig_bytes, ev->iov[1].iov_base, ev->iov[1].iov_len);
+           binref->base = bin->orig_bytes;
+       }
+       binref->bin = bin;
    } else { /* Empty binary (becomes NULL) */
       binref->base = NULL;
       binref->size = 0;
diff --git a/lib/wx/doc/src/Makefile b/lib/wx/doc/src/Makefile
index 23890f47f0..a76740adf1 100644
--- a/lib/wx/doc/src/Makefile
+++ b/lib/wx/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2008-2016. All Rights Reserved.
+# Copyright Ericsson AB 2008-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -39,7 +39,7 @@ ModsNoExt	= $(ErlMods:%.erl=%) $(GenMods:%.erl=%)
 XML_APPLICATION_FILES = ref_man.xml
 XML_REF3_FILES = $(ErlMods:%.erl=%.xml) $(GenMods:%.erl=%.xml)
 
-XML_PART_FILES = part.xml part_notes.xml
+XML_PART_FILES = part.xml
 XML_CHAPTER_FILES = chapter.xml
 XML_NOTES_FILES = notes.xml
 
diff --git a/lib/wx/doc/src/fascicules.xml b/lib/wx/doc/src/fascicules.xml
deleted file mode 100644
index 154c8a3b6d..0000000000
--- a/lib/wx/doc/src/fascicules.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-</fascicules>
-
diff --git a/lib/wx/doc/src/notes.xml b/lib/wx/doc/src/notes.xml
index d300ab5128..599b5b64fd 100644
--- a/lib/wx/doc/src/notes.xml
+++ b/lib/wx/doc/src/notes.xml
@@ -32,6 +32,36 @@
   <p>This document describes the changes made to the wxErlang
     application.</p>
 
+<section><title>Wx 1.8.2</title>
+
+    <section><title>Fixed Bugs and Malfunctions</title>
+      <list>
+        <item>
+          <p>
+	    Do not deprecate
+	    <c>wxGraphicsContext:createLinearGradientBrush/7</c> and
+	    <c>wxGraphicsContext:createRadialGradientBrush/8</c>
+	    which are still available in wxWidgets-3.0.</p>
+          <p>
+	    Own Id: OTP-14539</p>
+        </item>
+      </list>
+    </section>
+
+
+    <section><title>Improvements and New Features</title>
+      <list>
+        <item>
+          <p>
+	    General Unicode improvements.</p>
+          <p>
+	    Own Id: OTP-14462</p>
+        </item>
+      </list>
+    </section>
+
+</section>
+
 <section><title>Wx 1.8.1</title>
 
     <section><title>Fixed Bugs and Malfunctions</title>
diff --git a/lib/wx/doc/src/part_notes.xml b/lib/wx/doc/src/part_notes.xml
deleted file mode 100644
index 5a5a6494c1..0000000000
--- a/lib/wx/doc/src/part_notes.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2009</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>wxErlang Release Notes</title>
-    <prepared></prepared>
-    <docno></docno>
-    <date></date>
-    <rev></rev>
-  </header>
-  <description>
-    <p>The <em>wxErlang</em> application is an api for writing graphical user
-      interfaces with wxWidgets. 
-    </p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/lib/wx/examples/demo/demo.erl b/lib/wx/examples/demo/demo.erl
index 8fb70ad7b0..8f3291305b 100644
--- a/lib/wx/examples/demo/demo.erl
+++ b/lib/wx/examples/demo/demo.erl
@@ -411,7 +411,7 @@ find(Ed) ->
 
 keyWords() ->
     L = ["after","begin","case","try","cond","catch","andalso","orelse",
-	 "end","fun","if","let","of","query","receive","when","bnot","not",
+	 "end","fun","if","let","of","receive","when","bnot","not",
 	 "div","rem","band","and","bor","bxor","bsl","bsr","or","xor"],
     lists:flatten([K ++ " " || K <- L] ++ [0]).
 
diff --git a/lib/wx/examples/simple/hello.erl b/lib/wx/examples/simple/hello.erl
index 36bce56329..bf870c6f3e 100644
--- a/lib/wx/examples/simple/hello.erl
+++ b/lib/wx/examples/simple/hello.erl
@@ -29,7 +29,6 @@
 -include_lib("wx/include/wx.hrl").
 
 -export([start/0]).
--compile(export_all).
 
 start() ->
     Wx = wx:new(),
diff --git a/lib/wx/examples/simple/hello2.erl b/lib/wx/examples/simple/hello2.erl
index 671b23d892..b9da622b6b 100644
--- a/lib/wx/examples/simple/hello2.erl
+++ b/lib/wx/examples/simple/hello2.erl
@@ -29,8 +29,9 @@
 -module(hello2).
 -include_lib("wx/include/wx.hrl").
 
--export([start/0]).
--compile(export_all).
+-export([start/0,
+         init/1, handle_info/2, handle_event/2, handle_call/3,
+         code_change/3, terminate/2]).
 
 -behavoiur(wx_object).
 
diff --git a/lib/wx/examples/simple/menu.erl b/lib/wx/examples/simple/menu.erl
index 479df1ef98..93573fb97d 100644
--- a/lib/wx/examples/simple/menu.erl
+++ b/lib/wx/examples/simple/menu.erl
@@ -29,7 +29,6 @@
 -include_lib("wx/include/wx.hrl").
 
 -export([start/0]).
--compile(export_all).
 
 %%%Lots of IDs to declare!
 -define(menuID_FILE_QUIT,           ?wxID_EXIT).
@@ -228,36 +227,6 @@ create_menubar_menu() ->
 %%    
 %%    
 %%    
-create_submenu_menu() ->
-    SubMenuMenu   = wxMenu:new(),
-    wxMenu:append(SubMenuMenu, wxMenuItem:new([
-            {id,    ?menuID_SUBMENU_NORMAL},
-            {text,  "&Normal submenu item"},
-            {help,  "Disabled submenu item"}
-            ])),
-    %% note different way of adding check menu item
-    wxMenu:appendCheckItem(SubMenuMenu, 
-            ?menuID_SUBMENU_CHECK,
-            "&Check submenu item",
-            [{help,  "Check submenu item"}]),
-    wxMenu:appendRadioItem(SubMenuMenu, 
-            ?menuID_SUBMENU_RADIO_1,
-            "Radio item &1",
-            [{help,  "Radio item"}]),
-    wxMenu:appendRadioItem(SubMenuMenu, 
-            ?menuID_SUBMENU_RADIO_2,
-            "Radio item &2",
-            [{help,  "Radio item"}]),
-    wxMenu:appendRadioItem(SubMenuMenu, 
-            ?menuID_SUBMENU_RADIO_3,
-            "Radio item &3",
-            [{help,  "Radio item"}]),
-    SubMenuMenu.
-
-
-%%    
-%%    
-%%    
 create_menu_menu() ->
     MenuMenu   = wxMenu:new(),
     wxMenu:append(MenuMenu, wxMenuItem:new([
diff --git a/lib/wx/examples/simple/minimal.erl b/lib/wx/examples/simple/minimal.erl
index 9f6365e008..346f86433a 100644
--- a/lib/wx/examples/simple/minimal.erl
+++ b/lib/wx/examples/simple/minimal.erl
@@ -29,7 +29,7 @@
 -include_lib("wx/include/wx.hrl").
 
 -export([start/0]).
--compile(export_all).
+
 
 start() ->
     Wx = wx:new(),
diff --git a/lib/wx/examples/sudoku/sudoku.erl b/lib/wx/examples/sudoku/sudoku.erl
index 97f35870de..353f90d86f 100644
--- a/lib/wx/examples/sudoku/sudoku.erl
+++ b/lib/wx/examples/sudoku/sudoku.erl
@@ -26,9 +26,8 @@
 
 -module(sudoku).
 
--export([go/0]).
+-export([go/0, start/0]).
 
--compile(export_all).
 
 -include("sudoku.hrl").
 
diff --git a/lib/wx/examples/sudoku/sudoku_game.erl b/lib/wx/examples/sudoku/sudoku_game.erl
index 1e579a7c88..aa15c05653 100644
--- a/lib/wx/examples/sudoku/sudoku_game.erl
+++ b/lib/wx/examples/sudoku/sudoku_game.erl
@@ -18,7 +18,9 @@
 %% %CopyrightEnd%
 
 -module(sudoku_game).
--compile(export_all).
+
+-export([init/1,
+         indx/1, rcm/1, level/1]).
 -include("sudoku.hrl").
 
 init(GFX) ->
@@ -128,17 +130,6 @@ rebuild_all(_, S0) ->
 			add(rcm(Indx),Val,Acc)
 		end, S1, Solved).
 
-is_ok({RI,CI,MI}, Vals) ->
-    [Ri,Ci,Mi] = all(RI,CI,MI),
-    case element(indx(RI,CI),Vals) of
-	0  -> true;
-	Val ->
-	    Vs  = [[element(indx(R,C),Vals)||{R,C} <- Obs, 
-					     not ((R == RI) and (C == CI))]
-		   || Obs <- [Ri,Ci,Mi]],
-	    not lists:member(Val,lists:flatten(Vs))
-    end.
-
 test() ->  %% Known to solvable
     [{{1,2},6}, {{1,4},1}, {{1,6},4}, {{1,8},5}, 
      {{2,3},8}, {{2,4},3}, {{2,6},5}, {{2,7},6}, 
@@ -377,14 +368,6 @@ get_poss([H|R],What,Tot) ->
     %%     io:format("~p~n",[H]),
     get_poss(R,What, gb_sets:union(element(H,What),Tot)).
 
-r2rs(R) -> 
-    R0 = (R-1)*3,
-    [R0+1,R0+2,R0+3].
-
-c2cs(C) ->
-    C0 = (C-1) rem 9,
-    [C0+1, C0+10, C0+19].
-
 mindx(row,Indx) -> 
     {R,_C,M} = rcm(Indx),
     mindx(R,M);
diff --git a/lib/wx/examples/sudoku/sudoku_gui.erl b/lib/wx/examples/sudoku/sudoku_gui.erl
index 81d20814e1..4c4ad83cd7 100644
--- a/lib/wx/examples/sudoku/sudoku_gui.erl
+++ b/lib/wx/examples/sudoku/sudoku_gui.erl
@@ -28,7 +28,7 @@
 -export([init/1, handle_info/2, handle_call/3, handle_cast/2, handle_event/2,
 	 terminate/2, code_change/3]).
 
--compile(export_all).
+-export([new/1]).
 
 -behaviour(wx_object).
 
diff --git a/lib/wx/examples/xrc/xrc.erl b/lib/wx/examples/xrc/xrc.erl
index 729f4ad0db..7e967777d2 100644
--- a/lib/wx/examples/xrc/xrc.erl
+++ b/lib/wx/examples/xrc/xrc.erl
@@ -23,7 +23,7 @@
 %%%-------------------------------------------------------------------
 
 -module(xrc).
--compile(export_all).
+-export([start/0]).
 
 -include("../../include/wx.hrl").
 
diff --git a/lib/wx/src/gen/gl.erl b/lib/wx/src/gen/gl.erl
index 4a178ea1e4..47afb25c5d 100644
--- a/lib/wx/src/gen/gl.erl
+++ b/lib/wx/src/gen/gl.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2008-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -22,7 +22,7 @@
 %% This file is generated DO NOT EDIT
 
 %% @doc  Standard OpenGL api.
-%% See <a href="http://www.opengl.org/sdk/docs/man/">www.opengl.org</a>
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">www.khronos.org</a>
 %%
 %% Booleans are represented by integers 0 and 1.
 
@@ -324,7 +324,7 @@ send_bin(Tuple) when is_tuple(Tuple) ->
 %% value is then masked with   2 m-1, where   m is the number of bits in a color index stored
 %% in the frame buffer. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClearIndex.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glClearIndex.xml">external</a> documentation.
 -spec clearIndex(C) -> 'ok' when C :: float().
 clearIndex(C) ->
   cast(5037, <<C:?GLfloat>>).
@@ -335,7 +335,7 @@ clearIndex(C) ->
 %%  to clear the color buffers. Values specified by ``gl:clearColor'' are clamped to the
 %% range  [0 1]. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClearColor.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glClearColor.xhtml">external</a> documentation.
 -spec clearColor(Red, Green, Blue, Alpha) -> 'ok' when Red :: clamp(),Green :: clamp(),Blue :: clamp(),Alpha :: clamp().
 clearColor(Red,Green,Blue,Alpha) ->
   cast(5038, <<Red:?GLclampf,Green:?GLclampf,Blue:?GLclampf,Alpha:?GLclampf>>).
@@ -346,26 +346,7 @@ clearColor(Red,Green,Blue,Alpha) ->
 %% , ``gl:clearDepth'', and ``gl:clearStencil''. Multiple color buffers can be cleared
 %% simultaneously by selecting more than one buffer at a time using  {@link gl:drawBuffer/1} . 
 %%
-%%  The pixel ownership test, the scissor test, dithering, and the buffer writemasks affect
-%% the operation of ``gl:clear''. The scissor box bounds the cleared region. Alpha function,
-%% blend function, logical operation, stenciling, texture mapping, and depth-buffering are
-%% ignored by ``gl:clear''. 
-%%
-%% ``gl:clear'' takes a single argument that is the bitwise OR of several values indicating
-%% which buffer is to be cleared. 
-%%
-%%  The values are as follows: 
-%%
-%% `?GL_COLOR_BUFFER_BIT':  Indicates the buffers currently enabled for color writing. 
-%%
-%% `?GL_DEPTH_BUFFER_BIT':  Indicates the depth buffer. 
-%%
-%% `?GL_STENCIL_BUFFER_BIT':  Indicates the stencil buffer. 
-%%
-%%  The value to which each buffer is cleared depends on the setting of the clear value for
-%% that buffer. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClear.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glClear.xhtml">external</a> documentation.
 -spec clear(Mask) -> 'ok' when Mask :: integer().
 clear(Mask) ->
   cast(5039, <<Mask:?GLbitfield>>).
@@ -378,11 +359,7 @@ clear(Mask) ->
 %% to the corresponding bit in the color index buffer (or buffers). Where a 0 (zero) appears,
 %% the corresponding bit is write-protected. 
 %%
-%%  This mask is used only in color index mode, and it affects only the buffers currently
-%% selected for writing (see  {@link gl:drawBuffer/1} ). Initially, all bits are enabled for
-%% writing. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIndexMask.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glIndexMask.xml">external</a> documentation.
 -spec indexMask(Mask) -> 'ok' when Mask :: integer().
 indexMask(Mask) ->
   cast(5040, <<Mask:?GLuint>>).
@@ -395,10 +372,7 @@ indexMask(Mask) ->
 %%  is `?GL_FALSE', for example, no change is made to the red component of any pixel
 %% in any of the color buffers, regardless of the drawing operation attempted. 
 %%
-%%  Changes to individual bits of components cannot be controlled. Rather, changes are either
-%% enabled or disabled for entire color components. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glColorMask.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glColorMask.xhtml">external</a> documentation.
 -spec colorMask(Red, Green, Blue, Alpha) -> 'ok' when Red :: 0|1,Green :: 0|1,Blue :: 0|1,Alpha :: 0|1.
 colorMask(Red,Green,Blue,Alpha) ->
   cast(5041, <<Red:?GLboolean,Green:?GLboolean,Blue:?GLboolean,Alpha:?GLboolean>>).
@@ -411,37 +385,7 @@ colorMask(Red,Green,Blue,Alpha) ->
 %% testing is enabled. By default, it is not enabled. (See  {@link gl:enable/1}  and  {@link gl:enable/1} 
 %%  of `?GL_ALPHA_TEST'.) 
 %%
-%%  `Func'  and  `Ref'  specify the conditions under which the pixel is drawn. The
-%% incoming alpha value is compared to  `Ref'  using the function specified by  `Func' .
-%% If the value passes the comparison, the incoming fragment is drawn if it also passes subsequent
-%% stencil and depth buffer tests. If the value fails the comparison, no change is made to
-%% the frame buffer at that pixel location. The comparison functions are as follows: 
-%%
-%% `?GL_NEVER':  Never passes. 
-%%
-%% `?GL_LESS':  Passes if the incoming alpha value is less than the reference value. 
-%%
-%% `?GL_EQUAL':  Passes if the incoming alpha value is equal to the reference value. 
-%%
-%% `?GL_LEQUAL':  Passes if the incoming alpha value is less than or equal to the reference
-%% value. 
-%%
-%% `?GL_GREATER':  Passes if the incoming alpha value is greater than the reference
-%% value. 
-%%
-%% `?GL_NOTEQUAL':  Passes if the incoming alpha value is not equal to the reference
-%% value. 
-%%
-%% `?GL_GEQUAL':  Passes if the incoming alpha value is greater than or equal to the
-%% reference value. 
-%%
-%% `?GL_ALWAYS':  Always passes (initial value). 
-%%
-%% ``gl:alphaFunc'' operates on all pixel write operations, including those resulting from
-%% the scan conversion of points, lines, polygons, and bitmaps, and from pixel draw and copy
-%% operations. ``gl:alphaFunc'' does not affect screen clear operations. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glAlphaFunc.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glAlphaFunc.xml">external</a> documentation.
 -spec alphaFunc(Func, Ref) -> 'ok' when Func :: enum(),Ref :: clamp().
 alphaFunc(Func,Ref) ->
   cast(5042, <<Func:?GLenum,Ref:?GLclampf>>).
@@ -453,70 +397,7 @@ alphaFunc(Func,Ref) ->
 %% is initially disabled. Use  {@link gl:enable/1}  and  {@link gl:enable/1}  with argument `?GL_BLEND'
 %%  to enable and disable blending. 
 %%
-%% ``gl:blendFunc'' defines the operation of blending for all draw buffers when it is enabled.
-%% ``gl:blendFunci'' defines the operation of blending for a single draw buffer specified
-%% by  `Buf'  when enabled for that draw buffer.  `Sfactor'  specifies which method
-%% is used to scale the source color components.  `Dfactor'  specifies which method is
-%% used to scale the destination color components. Both parameters must be one of the following
-%% symbolic constants: `?GL_ZERO', `?GL_ONE', `?GL_SRC_COLOR', `?GL_ONE_MINUS_SRC_COLOR'
-%% , `?GL_DST_COLOR', `?GL_ONE_MINUS_DST_COLOR', `?GL_SRC_ALPHA', `?GL_ONE_MINUS_SRC_ALPHA'
-%% , `?GL_DST_ALPHA', `?GL_ONE_MINUS_DST_ALPHA', `?GL_CONSTANT_COLOR', `?GL_ONE_MINUS_CONSTANT_COLOR'
-%% , `?GL_CONSTANT_ALPHA', `?GL_ONE_MINUS_CONSTANT_ALPHA', `?GL_SRC_ALPHA_SATURATE'
-%% , `?GL_SRC1_COLOR', `?GL_ONE_MINUS_SRC1_COLOR', `?GL_SRC1_ALPHA', and `?GL_ONE_MINUS_SRC1_ALPHA'
-%% . The possible methods are described in the following table. Each method defines four
-%% scale factors, one each for red, green, blue, and alpha. In the table and in subsequent
-%% equations, first source, second source and destination color components are referred to
-%% as (R s0 G s0 B s0 A s0), (R s1 G s1 B s1 A s1) and (R d G d B d A d), respectively. The color specified by  {@link gl:blendColor/4}  is referred to
-%% as (R c G c B c A c). They are understood to have integer values between 0 and (k R k G k B k A), where 
-%%
-%%  k c=2(m c)-1
-%%
-%%  and (m R m G m B m A) is the number of red, green, blue, and alpha bitplanes. 
-%%
-%%  Source and destination scale factors are referred to as (s R s G s B s A) and (d R d G d B d A). The scale factors described
-%% in the table, denoted  (f R f G f B f A), represent either source or destination factors. All scale factors
-%% have range  [0 1]. 
-%%
-%% <table><tbody><tr><td>` Parameter '</td><td>(f R f G f B f A)</td></tr></tbody><tbody><tr><td>`?GL_ZERO'
-%% </td><td>(0 0 0 0)</td></tr><tr><td>`?GL_ONE'</td><td>(1 1 1 1)</td></tr><tr><td>`?GL_SRC_COLOR'</td>
-%% <td>(R s0 k/R G s0 k/G B s0 k/B A s0 k/A)</td></tr><tr><td>`?GL_ONE_MINUS_SRC_COLOR'</td><td>(1 1 1 1)-(R s0 k/R G s0 k/G B s0 k/B
-%% A s0 k/A)</td></tr><tr><td>`?GL_DST_COLOR'
-%% </td><td>(R d k/R G d k/G B d k/B A d k/A)</td></tr><tr><td>`?GL_ONE_MINUS_DST_COLOR'</td><td>(1 1 1 1)-(R d k/R G d k/G B d k/B
-%%  A d k/A)</td></tr><tr><td>`?GL_SRC_ALPHA'
-%% </td><td>(A s0 k/A A s0 k/A A s0 k/A A s0 k/A)</td></tr><tr><td>`?GL_ONE_MINUS_SRC_ALPHA'</td><td>(1 1 1 1)-(A s0 k/A A s0 k/A A s0
-%% k/A A s0 k/A)</td></tr><tr><td>`?GL_DST_ALPHA'
-%% </td><td>(A d k/A A d k/A A d k/A A d k/A)</td></tr><tr><td>`?GL_ONE_MINUS_DST_ALPHA'</td><td>(1 1 1 1)-(A d k/A A d k/A A d k/A
-%%  A d k/A)</td></tr><tr><td>`?GL_CONSTANT_COLOR'
-%% </td><td>(R c G c B c A c)</td></tr><tr><td>`?GL_ONE_MINUS_CONSTANT_COLOR'</td><td>(1 1 1 1)-(R c G c B c A c)</td></tr><tr><td>
-%% `?GL_CONSTANT_ALPHA'</td><td>(A c A c A c A c)</td></tr><tr><td>`?GL_ONE_MINUS_CONSTANT_ALPHA'</td>
-%% <td>(1 1 1 1)-(A c A c A c A c)</td></tr><tr><td>`?GL_SRC_ALPHA_SATURATE'</td><td>(i i i 1)</td></tr><tr><td>`?GL_SRC1_COLOR'
-%% </td><td>(R s1 k/R G s1 k/G B s1 k/B A s1 k/A)</td></tr><tr><td>`?GL_ONE_MINUS_SRC1_COLOR'</td><td>(1 1 1 1)-(R s1 k/R G s1 k/G B
-%% s1 k/B A s1 k/A)</td></tr><tr><td>`?GL_SRC1_ALPHA'
-%% </td><td>(A s1 k/A A s1 k/A A s1 k/A A s1 k/A)</td></tr><tr><td>`?GL_ONE_MINUS_SRC1_ALPHA'</td><td>(1 1 1 1)-(A s1 k/A A s1 k/A A
-%% s1 k/A A s1 k/A)</td></tr></tbody></table>
-%% 
-%%
-%%  In the table, 
-%%
-%%  i=min(A s k A-A d) k/A
-%%
-%%  To determine the blended RGBA values of a pixel, the system uses the following equations:
-%% 
-%%
-%%  R d=min(k R R s  s R+R d  d R) G d=min(k G G s  s G+G d  d G) B d=min(k B B s  s B+B d  d B) A d=min(k A A s  s A+A d  d A)
-%%
-%%  Despite the apparent precision of the above equations, blending arithmetic is not exactly
-%% specified, because blending operates with imprecise integer color values. However, a blend
-%% factor that should be equal to 1 is guaranteed not to modify its multiplicand, and a blend
-%% factor equal to 0 reduces its multiplicand to 0. For example, when  `Sfactor'  is `?GL_SRC_ALPHA'
-%% ,  `Dfactor'  is `?GL_ONE_MINUS_SRC_ALPHA', and   A s is equal to   k A, the equations
-%% reduce to simple replacement: 
-%%
-%%  R d=R s G d=G s B d=B s A d=A s
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBlendFunc.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBlendFunc.xhtml">external</a> documentation.
 -spec blendFunc(Sfactor, Dfactor) -> 'ok' when Sfactor :: enum(),Dfactor :: enum().
 blendFunc(Sfactor,Dfactor) ->
   cast(5043, <<Sfactor:?GLenum,Dfactor:?GLenum>>).
@@ -528,25 +409,7 @@ blendFunc(Sfactor,Dfactor) ->
 %% buffer. To enable or disable the logical operation, call  {@link gl:enable/1}  and  {@link gl:enable/1} 
 %%  using the symbolic constant `?GL_COLOR_LOGIC_OP'. The initial value is disabled. 
 %%
-%% <table><tbody><tr><td>` Opcode '</td><td>` Resulting Operation '</td></tr></tbody>
-%% <tbody><tr><td>`?GL_CLEAR'</td><td> 0 </td></tr><tr><td>`?GL_SET'</td><td> 1 </td>
-%% </tr><tr><td>`?GL_COPY'</td><td> s </td></tr><tr><td>`?GL_COPY_INVERTED'</td><td>
-%%  ~s </td></tr><tr><td>`?GL_NOOP'</td><td> d </td></tr><tr><td>`?GL_INVERT'</td><td>
-%%  ~d </td></tr><tr><td>`?GL_AND'</td><td> s &amp; d </td></tr><tr><td>`?GL_NAND'</td>
-%% <td> ~(s &amp; d) </td></tr><tr><td>`?GL_OR'</td><td> s | d </td></tr><tr><td>`?GL_NOR'
-%% </td><td> ~(s | d) </td></tr><tr><td>`?GL_XOR'</td><td> s ^ d </td></tr><tr><td>`?GL_EQUIV'
-%% </td><td> ~(s ^ d) </td></tr><tr><td>`?GL_AND_REVERSE'</td><td> s &amp; ~d </td></tr>
-%% <tr><td>`?GL_AND_INVERTED'</td><td> ~s &amp; d </td></tr><tr><td>`?GL_OR_REVERSE'
-%% </td><td> s | ~d </td></tr><tr><td>`?GL_OR_INVERTED'</td><td> ~s | d </td></tr></tbody>
-%% </table>
-%%
-%%  `Opcode'  is a symbolic constant chosen from the list above. In the explanation of
-%% the logical operations, `s' represents the incoming color and `d' represents
-%% the color in the frame buffer. Standard C-language operators are used. As these bitwise
-%% operators suggest, the logical operation is applied independently to each bit pair of
-%% the source and destination colors. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLogicOp.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glLogicOp.xhtml">external</a> documentation.
 -spec logicOp(Opcode) -> 'ok' when Opcode :: enum().
 logicOp(Opcode) ->
   cast(5044, <<Opcode:?GLenum>>).
@@ -559,10 +422,7 @@ logicOp(Opcode) ->
 %% commands with the argument `?GL_CULL_FACE'. Facets include triangles, quadrilaterals,
 %% polygons, and rectangles. 
 %%
-%%  {@link gl:frontFace/1}  specifies which of the clockwise and counterclockwise facets are
-%% front-facing and back-facing. See  {@link gl:frontFace/1} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCullFace.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCullFace.xhtml">external</a> documentation.
 -spec cullFace(Mode) -> 'ok' when Mode :: enum().
 cullFace(Mode) ->
   cast(5045, <<Mode:?GLenum>>).
@@ -574,18 +434,7 @@ cullFace(Mode) ->
 %% rendering of the image. To enable and disable elimination of back-facing polygons, call  {@link gl:enable/1} 
 %%  and  {@link gl:enable/1}  with argument `?GL_CULL_FACE'. 
 %%
-%%  The projection of a polygon to window coordinates is said to have clockwise winding if
-%% an imaginary object following the path from its first vertex, its second vertex, and so
-%% on, to its last vertex, and finally back to its first vertex, moves in a clockwise direction
-%% about the interior of the polygon. The polygon's winding is said to be counterclockwise
-%% if the imaginary object following the same path moves in a counterclockwise direction
-%% about the interior of the polygon. ``gl:frontFace'' specifies whether polygons with
-%% clockwise winding in window coordinates, or counterclockwise winding in window coordinates,
-%% are taken to be front-facing. Passing `?GL_CCW' to  `Mode'  selects counterclockwise
-%% polygons as front-facing; `?GL_CW' selects clockwise polygons as front-facing. By
-%% default, counterclockwise polygons are taken to be front-facing. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFrontFace.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glFrontFace.xhtml">external</a> documentation.
 -spec frontFace(Mode) -> 'ok' when Mode :: enum().
 frontFace(Mode) ->
   cast(5046, <<Mode:?GLenum>>).
@@ -597,7 +446,7 @@ frontFace(Mode) ->
 %% will be used to rasterize points. Otherwise, the value written to the shading language
 %% built-in variable gl_PointSize will be used. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPointSize.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glPointSize.xhtml">external</a> documentation.
 -spec pointSize(Size) -> 'ok' when Size :: float().
 pointSize(Size) ->
   cast(5047, <<Size:?GLfloat>>).
@@ -609,27 +458,7 @@ pointSize(Size) ->
 %% is enabled. To enable and disable line antialiasing, call  {@link gl:enable/1}  and  {@link gl:enable/1} 
 %%  with argument `?GL_LINE_SMOOTH'. Line antialiasing is initially disabled. 
 %%
-%%  If line antialiasing is disabled, the actual width is determined by rounding the supplied
-%% width to the nearest integer. (If the rounding results in the value 0, it is as if the
-%% line width were 1.) If |&amp;Delta; x|&gt;=|&amp;Delta; y|, `i' pixels are filled in each column that is rasterized,
-%% where `i' is the rounded value of  `Width' . Otherwise, `i' pixels are filled
-%% in each row that is rasterized. 
-%%
-%%  If antialiasing is enabled, line rasterization produces a fragment for each pixel square
-%% that intersects the region lying within the rectangle having width equal to the current
-%% line width, length equal to the actual length of the line, and centered on the mathematical
-%% line segment. The coverage value for each fragment is the window coordinate area of the
-%% intersection of the rectangular region with the corresponding pixel square. This value
-%% is saved and used in the final rasterization step. 
-%%
-%%  Not all widths can be supported when line antialiasing is enabled. If an unsupported
-%% width is requested, the nearest supported width is used. Only width 1 is guaranteed to
-%% be supported; others depend on the implementation. Likewise, there is a range for aliased
-%% line widths as well. To query the range of supported widths and the size difference between
-%% supported widths within the range, call  {@link gl:getBooleanv/1}  with arguments `?GL_ALIASED_LINE_WIDTH_RANGE'
-%% , `?GL_SMOOTH_LINE_WIDTH_RANGE', and `?GL_SMOOTH_LINE_WIDTH_GRANULARITY'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLineWidth.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glLineWidth.xhtml">external</a> documentation.
 -spec lineWidth(Width) -> 'ok' when Width :: float().
 lineWidth(Width) ->
   cast(5048, <<Width:?GLfloat>>).
@@ -641,27 +470,7 @@ lineWidth(Width) ->
 %% stipple pattern  `Pattern' , the repeat count  `Factor' , and an integer stipple
 %% counter   s. 
 %%
-%%  Counter   s is reset to 0 whenever  {@link gl:'begin'/1}  is called and before each line segment
-%% of a  {@link gl:'begin'/1} (`?GL_LINES')/ {@link gl:'begin'/1}  sequence is generated. It is
-%% incremented after each fragment of a unit width aliased line segment is generated or after
-%% each   i fragments of an   i width line segment are generated. The   i fragments associated
-%% with count   s are masked out if 
-%%
-%%  `Pattern'  bit  (s/factor)% 16
-%%
-%%  is 0, otherwise these fragments are sent to the frame buffer. Bit zero of  `Pattern' 
-%% is the least significant bit. 
-%%
-%%  Antialiased lines are treated as a sequence of   1×width rectangles for purposes of stippling.
-%% Whether rectangle   s is rasterized or not depends on the fragment rule described for
-%% aliased lines, counting rectangles rather than groups of fragments. 
-%%
-%%  To enable and disable line stippling, call  {@link gl:enable/1}  and  {@link gl:enable/1} 
-%% with argument `?GL_LINE_STIPPLE'. When enabled, the line stipple pattern is applied
-%% as described above. When disabled, it is as if the pattern were all 1's. Initially, line
-%% stippling is disabled. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLineStipple.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glLineStipple.xml">external</a> documentation.
 -spec lineStipple(Factor, Pattern) -> 'ok' when Factor :: integer(),Pattern :: integer().
 lineStipple(Factor,Pattern) ->
   cast(5049, <<Factor:?GLint,Pattern:?GLushort>>).
@@ -674,22 +483,7 @@ lineStipple(Factor,Pattern) ->
 %% polygon's vertices are lit and the polygon is clipped and possibly culled before these
 %% modes are applied. 
 %%
-%%  Three modes are defined and can be specified in  `Mode' : 
-%%
-%% `?GL_POINT':  Polygon vertices that are marked as the start of a boundary edge are
-%% drawn as points. Point attributes such as `?GL_POINT_SIZE' and `?GL_POINT_SMOOTH'
-%%  control the rasterization of the points. Polygon rasterization attributes other than `?GL_POLYGON_MODE'
-%%  have no effect. 
-%%
-%% `?GL_LINE':  Boundary edges of the polygon are drawn as line segments. Line attributes
-%% such as `?GL_LINE_WIDTH' and `?GL_LINE_SMOOTH' control the rasterization of
-%% the lines. Polygon rasterization attributes other than `?GL_POLYGON_MODE' have no
-%% effect. 
-%%
-%% `?GL_FILL':  The interior of the polygon is filled. Polygon attributes such as `?GL_POLYGON_SMOOTH'
-%%  control the rasterization of the polygon. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPolygonMode.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glPolygonMode.xhtml">external</a> documentation.
 -spec polygonMode(Face, Mode) -> 'ok' when Face :: enum(),Mode :: enum().
 polygonMode(Face,Mode) ->
   cast(5050, <<Face:?GLenum,Mode:?GLenum>>).
@@ -704,10 +498,7 @@ polygonMode(Face,Mode) ->
 %% a resolvable offset for a given implementation. The offset is added before the depth test
 %% is performed and before the value is written into the depth buffer. 
 %%
-%% ``gl:polygonOffset'' is useful for rendering hidden-line images, for applying decals
-%% to surfaces, and for rendering solids with highlighted edges. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPolygonOffset.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glPolygonOffset.xhtml">external</a> documentation.
 -spec polygonOffset(Factor, Units) -> 'ok' when Factor :: float(),Units :: float().
 polygonOffset(Factor,Units) ->
   cast(5051, <<Factor:?GLfloat,Units:?GLfloat>>).
@@ -718,27 +509,7 @@ polygonOffset(Factor,Units) ->
 %% fragments produced by rasterization, creating a pattern. Stippling is independent of polygon
 %% antialiasing. 
 %%
-%%  `Pattern'  is a pointer to a   32×32 stipple pattern that is stored in memory just
-%% like the pixel data supplied to a  {@link gl:drawPixels/5}  call with  height and `width'
-%%  both equal to 32, a pixel format of `?GL_COLOR_INDEX', and data type of `?GL_BITMAP'
-%% . That is, the stipple pattern is represented as a   32×32 array of 1-bit color indices
-%% packed in unsigned bytes.  {@link gl:pixelStoref/2}  parameters like `?GL_UNPACK_SWAP_BYTES'
-%%  and `?GL_UNPACK_LSB_FIRST' affect the assembling of the bits into a stipple pattern.
-%% Pixel transfer operations (shift, offset, pixel map) are not applied to the stipple image,
-%% however. 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a stipple pattern is specified,  `Pattern'  is
-%% treated as a byte offset into the buffer object's data store. 
-%%
-%%  To enable and disable polygon stippling, call  {@link gl:enable/1}  and  {@link gl:enable/1} 
-%% with argument `?GL_POLYGON_STIPPLE'. Polygon stippling is initially disabled. If
-%% it's enabled, a rasterized polygon fragment with window coordinates   x w and   y w is
-%% sent to the next stage of the GL if and only if the ( x w% 32)th bit in the  ( y w% 32)th
-%% row of the stipple pattern is 1 (one). When polygon stippling is disabled, it is as if
-%% the stipple pattern consists of all 1's. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPolygonStipple.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glPolygonStipple.xml">external</a> documentation.
 -spec polygonStipple(Mask) -> 'ok' when Mask :: binary().
 polygonStipple(Mask) ->
   send_bin(Mask),
@@ -753,11 +524,7 @@ polygonStipple(Mask) ->
 %% Unlike  {@link gl:readPixels/7} , however, pixel transfer operations (shift, offset, pixel
 %% map) are not applied to the returned stipple image. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_PACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a polygon stipple pattern is requested,  `Pattern' 
-%% is treated as a byte offset into the buffer object's data store. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetPolygonStipple.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetPolygonStipple.xml">external</a> documentation.
 -spec getPolygonStipple() -> binary().
 getPolygonStipple() ->
   call(5053, <<>>).
@@ -771,13 +538,7 @@ getPolygonStipple() ->
 %% of a nonboundary edge. ``gl:edgeFlag'' sets the edge flag bit to `?GL_TRUE' if  `Flag' 
 %%  is `?GL_TRUE' and to `?GL_FALSE' otherwise. 
 %%
-%%  The vertices of connected triangles and connected quadrilaterals are always marked as
-%% boundary, regardless of the value of the edge flag. 
-%%
-%%  Boundary and nonboundary edge flags on vertices are significant only if `?GL_POLYGON_MODE'
-%%  is set to `?GL_POINT' or `?GL_LINE'. See  {@link gl:polygonMode/2} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glEdgeFlag.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glEdgeFlag.xml">external</a> documentation.
 -spec edgeFlag(Flag) -> 'ok' when Flag :: 0|1.
 edgeFlag(Flag) ->
   cast(5054, <<Flag:?GLboolean>>).
@@ -792,17 +553,7 @@ edgeFlagv({Flag}) ->  edgeFlag(Flag).
 %% first two arguments,  `X'  and  `Y' , specify the lower left corner of the box.  `Width' 
 %%  and  `Height'  specify the width and height of the box. 
 %%
-%%  To enable and disable the scissor test, call  {@link gl:enable/1}  and  {@link gl:enable/1} 
-%% with argument `?GL_SCISSOR_TEST'. The test is initially disabled. While the test
-%% is enabled, only pixels that lie within the scissor box can be modified by drawing commands.
-%% Window coordinates have integer values at the shared corners of frame buffer pixels. glScissor(0,0,1,1)
-%%  allows modification of only the lower left pixel in the window, and glScissor(0,0,0,0)
-%% doesn't allow modification of any pixels in the window. 
-%%
-%%  When the scissor test is disabled, it is as though the scissor box includes the entire
-%% window. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glScissor.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glScissor.xhtml">external</a> documentation.
 -spec scissor(X, Y, Width, Height) -> 'ok' when X :: integer(),Y :: integer(),Width :: integer(),Height :: integer().
 scissor(X,Y,Width,Height) ->
   cast(5055, <<X:?GLint,Y:?GLint,Width:?GLsizei,Height:?GLsizei>>).
@@ -817,20 +568,7 @@ scissor(X,Y,Width,Height) ->
 %% clipping planes. Because the resulting clipping region is the intersection of the defined
 %% half-spaces, it is always convex. 
 %%
-%% ``gl:clipPlane'' specifies a half-space using a four-component plane equation. When ``gl:clipPlane''
-%%  is called,  `Equation'  is transformed by the inverse of the modelview matrix and
-%% stored in the resulting eye coordinates. Subsequent changes to the modelview matrix have
-%% no effect on the stored plane-equation components. If the dot product of the eye coordinates
-%% of a vertex with the stored plane equation components is positive or zero, the vertex is `in'
-%%  with respect to that clipping plane. Otherwise, it is `out'. 
-%%
-%%  To enable and disable clipping planes, call  {@link gl:enable/1}  and  {@link gl:enable/1} 
-%% with the argument `?GL_CLIP_PLANE'`i', where `i' is the plane number. 
-%%
-%%  All clipping planes are initially defined as (0, 0, 0, 0) in eye coordinates and are
-%% disabled. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClipPlane.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glClipPlane.xml">external</a> documentation.
 -spec clipPlane(Plane, Equation) -> 'ok' when Plane :: enum(),Equation :: {float(),float(),float(),float()}.
 clipPlane(Plane,{E1,E2,E3,E4}) ->
   cast(5056, <<Plane:?GLenum,0:32,E1:?GLdouble,E2:?GLdouble,E3:?GLdouble,E4:?GLdouble>>).
@@ -840,7 +578,7 @@ clipPlane(Plane,{E1,E2,E3,E4}) ->
 %% ``gl:getClipPlane'' returns in  `Equation'  the four coefficients of the plane equation
 %% for  `Plane' . 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetClipPlane.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetClipPlane.xml">external</a> documentation.
 -spec getClipPlane(Plane) -> {float(),float(),float(),float()} when Plane :: enum().
 getClipPlane(Plane) ->
   call(5057, <<Plane:?GLenum>>).
@@ -850,44 +588,7 @@ getClipPlane(Plane) ->
 %%  When colors are written to the frame buffer, they are written into the color buffers
 %% specified by ``gl:drawBuffer''. The specifications are as follows: 
 %%
-%% `?GL_NONE':  No color buffers are written. 
-%%
-%% `?GL_FRONT_LEFT':  Only the front left color buffer is written. 
-%%
-%% `?GL_FRONT_RIGHT':  Only the front right color buffer is written. 
-%%
-%% `?GL_BACK_LEFT':  Only the back left color buffer is written. 
-%%
-%% `?GL_BACK_RIGHT':  Only the back right color buffer is written. 
-%%
-%% `?GL_FRONT':  Only the front left and front right color buffers are written. If there
-%% is no front right color buffer, only the front left color buffer is written. 
-%%
-%% `?GL_BACK':  Only the back left and back right color buffers are written. If there
-%% is no back right color buffer, only the back left color buffer is written. 
-%%
-%% `?GL_LEFT':  Only the front left and back left color buffers are written. If there
-%% is no back left color buffer, only the front left color buffer is written. 
-%%
-%% `?GL_RIGHT':  Only the front right and back right color buffers are written. If there
-%% is no back right color buffer, only the front right color buffer is written. 
-%%
-%% `?GL_FRONT_AND_BACK':  All the front and back color buffers (front left, front right,
-%% back left, back right) are written. If there are no back color buffers, only the front
-%% left and front right color buffers are written. If there are no right color buffers, only
-%% the front left and back left color buffers are written. If there are no right or back
-%% color buffers, only the front left color buffer is written. 
-%%
-%%  If more than one color buffer is selected for drawing, then blending or logical operations
-%% are computed and applied independently for each color buffer and can produce different
-%% results in each buffer. 
-%%
-%%  Monoscopic contexts include only `left' buffers, and stereoscopic contexts include
-%% both `left' and `right' buffers. Likewise, single-buffered contexts include
-%% only `front' buffers, and double-buffered contexts include both `front' and `back'
-%%  buffers. The context is selected at GL initialization. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawBuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawBuffer.xhtml">external</a> documentation.
 -spec drawBuffer(Mode) -> 'ok' when Mode :: enum().
 drawBuffer(Mode) ->
   cast(5058, <<Mode:?GLenum>>).
@@ -904,15 +605,7 @@ drawBuffer(Mode) ->
 %% the `i'th color attachment where `i' ranges from zero to the value of `?GL_MAX_COLOR_ATTACHMENTS'
 %%  minus one. 
 %%
-%%  Nonstereo double-buffered configurations have only a front left and a back left buffer.
-%% Single-buffered configurations have a front left and a front right buffer if stereo, and
-%% only a front left buffer if nonstereo. It is an error to specify a nonexistent buffer to ``gl:readBuffer''
-%% . 
-%%
-%%  `Mode'  is initially `?GL_FRONT' in single-buffered configurations and `?GL_BACK'
-%%  in double-buffered configurations. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glReadBuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glReadBuffer.xhtml">external</a> documentation.
 -spec readBuffer(Mode) -> 'ok' when Mode :: enum().
 readBuffer(Mode) ->
   cast(5059, <<Mode:?GLenum>>).
@@ -925,104 +618,7 @@ readBuffer(Mode) ->
 %% is `?GL_FALSE'. The initial value for `?GL_DITHER' and `?GL_MULTISAMPLE'
 %% is `?GL_TRUE'. 
 %%
-%%  Both ``gl:enable'' and  {@link gl:enable/1}  take a single argument,  `Cap' , which
-%% can assume one of the following values: 
-%%
-%%  Some of the GL's capabilities are indexed. ``gl:enablei'' and ``gl:disablei'' enable
-%% and disable indexed capabilities. 
-%%
-%% `?GL_BLEND':  If enabled, blend the computed fragment color values with the values
-%% in the color buffers. See  {@link gl:blendFunc/2} . 
-%%
-%% `?GL_CLIP_DISTANCE'`i':  If enabled, clip geometry against user-defined half
-%% space `i'. 
-%%
-%% `?GL_COLOR_LOGIC_OP':  If enabled, apply the currently selected logical operation
-%% to the computed fragment color and color buffer values. See  {@link gl:logicOp/1} . 
-%%
-%% `?GL_CULL_FACE':  If enabled, cull polygons based on their winding in window coordinates.
-%% See  {@link gl:cullFace/1} . 
-%%
-%% `?GL_DEPTH_CLAMP':  If enabled, the -w c&amp;le; z c&amp;le; w c plane equation is
-%% ignored by view volume clipping (effectively, there is no near or far plane clipping).
-%% See  {@link gl:depthRange/2} . 
-%%
-%% `?GL_DEPTH_TEST':  If enabled, do depth comparisons and update the depth buffer.
-%% Note that even if the depth buffer exists and the depth mask is non-zero, the depth buffer
-%% is not updated if the depth test is disabled. See  {@link gl:depthFunc/1}  and  {@link gl:depthRange/2} 
-%% . 
-%%
-%% `?GL_DITHER':  If enabled, dither color components or indices before they are written
-%% to the color buffer. 
-%%
-%% `?GL_FRAMEBUFFER_SRGB':  If enabled and the value of `?GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING'
-%%  for the framebuffer attachment corresponding to the destination buffer is `?GL_SRGB',
-%% the R, G, and B destination color values (after conversion from fixed-point to floating-point)
-%% are considered to be encoded for the sRGB color space and hence are linearized prior to
-%% their use in blending. 
-%%
-%% `?GL_LINE_SMOOTH':  If enabled, draw lines with correct filtering. Otherwise, draw
-%% aliased lines. See  {@link gl:lineWidth/1} . 
-%%
-%% `?GL_MULTISAMPLE':  If enabled, use multiple fragment samples in computing the final
-%% color of a pixel. See  {@link gl:sampleCoverage/2} . 
-%%
-%% `?GL_POLYGON_OFFSET_FILL':  If enabled, and if the polygon is rendered in `?GL_FILL'
-%%  mode, an offset is added to depth values of a polygon's fragments before the depth comparison
-%% is performed. See  {@link gl:polygonOffset/2} . 
-%%
-%% `?GL_POLYGON_OFFSET_LINE':  If enabled, and if the polygon is rendered in `?GL_LINE'
-%%  mode, an offset is added to depth values of a polygon's fragments before the depth comparison
-%% is performed. See  {@link gl:polygonOffset/2} . 
-%%
-%% `?GL_POLYGON_OFFSET_POINT':  If enabled, an offset is added to depth values of a
-%% polygon's fragments before the depth comparison is performed, if the polygon is rendered
-%% in `?GL_POINT' mode. See  {@link gl:polygonOffset/2} . 
-%%
-%% `?GL_POLYGON_SMOOTH':  If enabled, draw polygons with proper filtering. Otherwise,
-%% draw aliased polygons. For correct antialiased polygons, an alpha buffer is needed and
-%% the polygons must be sorted front to back. 
-%%
-%% `?GL_PRIMITIVE_RESTART':  Enables primitive restarting. If enabled, any one of the
-%% draw commands  which transfers a set of generic attribute array elements to the GL will
-%% restart  the primitive when the index of the vertex is equal to the primitive restart
-%% index. See  {@link gl:primitiveRestartIndex/1} . 
-%%
-%% `?GL_SAMPLE_ALPHA_TO_COVERAGE':  If enabled, compute a temporary coverage value where
-%% each bit is determined by the alpha value at the corresponding sample location. The temporary
-%% coverage value is then ANDed with the fragment coverage value. 
-%%
-%% `?GL_SAMPLE_ALPHA_TO_ONE':  If enabled, each sample alpha value is replaced by the
-%% maximum representable alpha value. 
-%%
-%% `?GL_SAMPLE_COVERAGE':  If enabled, the fragment's coverage is ANDed with the temporary
-%% coverage value. If `?GL_SAMPLE_COVERAGE_INVERT' is set to `?GL_TRUE', invert
-%% the coverage value. See  {@link gl:sampleCoverage/2} . 
-%%
-%% `?GL_SAMPLE_SHADING':  If enabled, the active fragment shader is run once for each
-%% covered sample, or at fraction of this rate as determined by the current value of `?GL_MIN_SAMPLE_SHADING_VALUE'
-%% . See  {@link gl:minSampleShading/1} . 
-%%
-%% `?GL_SAMPLE_MASK':  If enabled, the sample coverage mask generated for a fragment
-%% during rasterization will be ANDed with the value of `?GL_SAMPLE_MASK_VALUE' before
-%% shading occurs. See  {@link gl:sampleMaski/2} . 
-%%
-%% `?GL_SCISSOR_TEST':  If enabled, discard fragments that are outside the scissor rectangle.
-%% See  {@link gl:scissor/4} . 
-%%
-%% `?GL_STENCIL_TEST':  If enabled, do stencil testing and update the stencil buffer.
-%% See  {@link gl:stencilFunc/3}  and  {@link gl:stencilOp/3} . 
-%%
-%% `?GL_TEXTURE_CUBE_MAP_SEAMLESS':  If enabled, cubemap textures are sampled such that
-%% when linearly sampling from the border between two adjacent faces, texels from both faces
-%% are used to generate the final sample value. When disabled, texels from only a single
-%% face are used to construct the final sample value. 
-%%
-%% `?GL_PROGRAM_POINT_SIZE':  If enabled and a vertex or geometry shader is active,
-%% then the derived point size is taken from the (potentially clipped) shader builtin `?gl_PointSize'
-%%  and clamped to the implementation-dependent point size range. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glEnable.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glEnable.xhtml">external</a> documentation.
 -spec enable(Cap) -> 'ok' when Cap :: enum().
 enable(Cap) ->
   cast(5060, <<Cap:?GLenum>>).
@@ -1042,31 +638,7 @@ disable(Cap) ->
 %% all capabilities except `?GL_DITHER' are disabled; `?GL_DITHER' is initially
 %% enabled. 
 %%
-%%  The following capabilities are accepted for  `Cap' : <table><tbody><tr><td>` Constant '
-%% </td><td>` See '</td></tr></tbody><tbody><tr><td>`?GL_BLEND'</td><td> {@link gl:blendFunc/2} 
-%% ,  {@link gl:logicOp/1} </td></tr><tr><td>`?GL_CLIP_DISTANCE'`i'</td><td> {@link gl:enable/1} 
-%% </td></tr><tr><td>`?GL_COLOR_LOGIC_OP'</td><td> {@link gl:logicOp/1} </td></tr><tr><td>`?GL_CULL_FACE'
-%% </td><td> {@link gl:cullFace/1} </td></tr><tr><td>`?GL_DEPTH_CLAMP'</td><td> {@link gl:enable/1} 
-%% </td></tr><tr><td>`?GL_DEPTH_TEST'</td><td> {@link gl:depthFunc/1} ,  {@link gl:depthRange/2} 
-%% </td></tr><tr><td>`?GL_DITHER'</td><td> {@link gl:enable/1} </td></tr><tr><td>`?GL_FRAMEBUFFER_SRGB'
-%% </td><td> {@link gl:enable/1} </td></tr><tr><td>`?GL_LINE_SMOOTH'</td><td> {@link gl:lineWidth/1} 
-%% </td></tr><tr><td>`?GL_MULTISAMPLE'</td><td> {@link gl:sampleCoverage/2} </td></tr><tr><td>
-%% `?GL_POLYGON_SMOOTH'</td><td> {@link gl:polygonMode/2} </td></tr><tr><td>`?GL_POLYGON_OFFSET_FILL'
-%% </td><td> {@link gl:polygonOffset/2} </td></tr><tr><td>`?GL_POLYGON_OFFSET_LINE'</td><td>
-%%  {@link gl:polygonOffset/2} </td></tr><tr><td>`?GL_POLYGON_OFFSET_POINT'</td><td> {@link gl:polygonOffset/2} 
-%% </td></tr><tr><td>`?GL_PROGRAM_POINT_SIZE'</td><td> {@link gl:enable/1} </td></tr><tr><td>
-%% `?GL_PRIMITIVE_RESTART'</td><td> {@link gl:enable/1} ,  {@link gl:primitiveRestartIndex/1} </td>
-%% </tr><tr><td>`?GL_SAMPLE_ALPHA_TO_COVERAGE'</td><td> {@link gl:sampleCoverage/2} </td></tr>
-%% <tr><td>`?GL_SAMPLE_ALPHA_TO_ONE'</td><td> {@link gl:sampleCoverage/2} </td></tr><tr><td>
-%% `?GL_SAMPLE_COVERAGE'</td><td> {@link gl:sampleCoverage/2} </td></tr><tr><td>`?GL_SAMPLE_MASK'
-%% </td><td> {@link gl:enable/1} </td></tr><tr><td>`?GL_SCISSOR_TEST'</td><td> {@link gl:scissor/4} 
-%% </td></tr><tr><td>`?GL_STENCIL_TEST'</td><td> {@link gl:stencilFunc/3} ,  {@link gl:stencilOp/3} 
-%% </td></tr><tr><td>`?GL_TEXTURE_CUBEMAP_SEAMLESS'</td><td> {@link gl:enable/1} </td></tr>
-%% </tbody></table>
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsEnabled.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsEnabled.xhtml">external</a> documentation.
 -spec isEnabled(Cap) -> 0|1 when Cap :: enum().
 isEnabled(Cap) ->
   call(5062, <<Cap:?GLenum>>).
@@ -1078,47 +650,7 @@ isEnabled(Cap) ->
 %%  and  {@link gl:enableClientState/1}  take a single argument,  `Cap' , which can assume
 %% one of the following values: 
 %%
-%% `?GL_COLOR_ARRAY':  If enabled, the color array is enabled for writing and used during
-%% rendering when  {@link gl:arrayElement/1} ,  {@link gl:drawArrays/3} ,  {@link gl:drawElements/4} ,
-%%  {@link gl:drawRangeElements/6}  {@link gl:multiDrawArrays/3} , or see `glMultiDrawElements'
-%% is called. See  {@link gl:colorPointer/4} . 
-%%
-%% `?GL_EDGE_FLAG_ARRAY':  If enabled, the edge flag array is enabled for writing and
-%% used during rendering when  {@link gl:arrayElement/1} ,  {@link gl:drawArrays/3} ,  {@link gl:drawElements/4} 
-%% ,  {@link gl:drawRangeElements/6}  {@link gl:multiDrawArrays/3} , or see `glMultiDrawElements'
-%%  is called. See  {@link gl:edgeFlagPointer/2} . 
-%%
-%% `?GL_FOG_COORD_ARRAY':  If enabled, the fog coordinate array is enabled for writing
-%% and used during rendering when  {@link gl:arrayElement/1} ,  {@link gl:drawArrays/3} ,  {@link gl:drawElements/4} 
-%% ,  {@link gl:drawRangeElements/6}  {@link gl:multiDrawArrays/3} , or see `glMultiDrawElements'
-%%  is called. See  {@link gl:fogCoordPointer/3} . 
-%%
-%% `?GL_INDEX_ARRAY':  If enabled, the index array is enabled for writing and used during
-%% rendering when  {@link gl:arrayElement/1} ,  {@link gl:drawArrays/3} ,  {@link gl:drawElements/4} ,
-%%  {@link gl:drawRangeElements/6}  {@link gl:multiDrawArrays/3} , or see `glMultiDrawElements'
-%% is called. See  {@link gl:indexPointer/3} . 
-%%
-%% `?GL_NORMAL_ARRAY':  If enabled, the normal array is enabled for writing and used
-%% during rendering when  {@link gl:arrayElement/1} ,  {@link gl:drawArrays/3} ,  {@link gl:drawElements/4} 
-%% ,  {@link gl:drawRangeElements/6}  {@link gl:multiDrawArrays/3} , or see `glMultiDrawElements'
-%%  is called. See  {@link gl:normalPointer/3} . 
-%%
-%% `?GL_SECONDARY_COLOR_ARRAY':  If enabled, the secondary color array is enabled for
-%% writing and used during rendering when  {@link gl:arrayElement/1} ,  {@link gl:drawArrays/3} ,  {@link gl:drawElements/4} 
-%% ,  {@link gl:drawRangeElements/6}  {@link gl:multiDrawArrays/3} , or see `glMultiDrawElements'
-%%  is called. See  {@link gl:colorPointer/4} . 
-%%
-%% `?GL_TEXTURE_COORD_ARRAY':  If enabled, the texture coordinate array is enabled for
-%% writing and used during rendering when  {@link gl:arrayElement/1} ,  {@link gl:drawArrays/3} ,  {@link gl:drawElements/4} 
-%% ,  {@link gl:drawRangeElements/6}  {@link gl:multiDrawArrays/3} , or see `glMultiDrawElements'
-%%  is called. See  {@link gl:texCoordPointer/4} . 
-%%
-%% `?GL_VERTEX_ARRAY':  If enabled, the vertex array is enabled for writing and used
-%% during rendering when  {@link gl:arrayElement/1} ,  {@link gl:drawArrays/3} ,  {@link gl:drawElements/4} 
-%% ,  {@link gl:drawRangeElements/6}  {@link gl:multiDrawArrays/3} , or see `glMultiDrawElements'
-%%  is called. See  {@link gl:vertexPointer/4} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glEnableClientState.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glEnableClientState.xml">external</a> documentation.
 -spec enableClientState(Cap) -> 'ok' when Cap :: enum().
 enableClientState(Cap) ->
   cast(5063, <<Cap:?GLenum>>).
@@ -1135,809 +667,7 @@ disableClientState(Cap) ->
 %% symbolic constant indicating the state variable to be returned, and  `Params'  is a
 %% pointer to an array of the indicated type in which to place the returned data. 
 %%
-%%  Type conversion is performed if  `Params'  has a different type than the state variable
-%% value being requested. If ``gl:getBooleanv'' is called, a floating-point (or integer)
-%% value is converted to `?GL_FALSE' if and only if it is 0.0 (or 0). Otherwise, it
-%% is converted to `?GL_TRUE'. If ``gl:getIntegerv'' is called, boolean values are
-%% returned as `?GL_TRUE' or `?GL_FALSE', and most floating-point values are rounded
-%% to the nearest integer value. Floating-point colors and normals, however, are returned
-%% with a linear mapping that maps 1.0 to the most positive representable integer value and
-%%   -1.0 to the most negative representable integer value. If ``gl:getFloatv'' or ``gl:getDoublev''
-%%  is called, boolean values are returned as `?GL_TRUE' or `?GL_FALSE', and integer
-%% values are converted to floating-point values. 
-%%
-%%  The following symbolic constants are accepted by  `Pname' : 
-%%
-%% `?GL_ACTIVE_TEXTURE':  `Params'  returns a single value indicating the active
-%% multitexture unit. The initial value is `?GL_TEXTURE0'. See  {@link gl:activeTexture/1} .
-%% 
-%%
-%% `?GL_ALIASED_LINE_WIDTH_RANGE':  `Params'  returns a pair of values indicating
-%% the range of widths supported for aliased lines. See  {@link gl:lineWidth/1} . 
-%%
-%% `?GL_ARRAY_BUFFER_BINDING':  `Params'  returns a single value, the name of the
-%% buffer object currently bound to the target `?GL_ARRAY_BUFFER'. If no buffer object
-%% is bound to this target, 0 is returned. The initial value is 0. See  {@link gl:bindBuffer/2} .
-%% 
-%%
-%% `?GL_BLEND':  `Params'  returns a single boolean value indicating whether blending
-%% is enabled. The initial value is `?GL_FALSE'. See  {@link gl:blendFunc/2} . 
-%%
-%% `?GL_BLEND_COLOR':  `Params'  returns four values, the red, green, blue, and alpha
-%% values which are the components of the blend color. See  {@link gl:blendColor/4} . 
-%%
-%% `?GL_BLEND_DST_ALPHA':  `Params'  returns one value, the symbolic constant identifying
-%% the alpha destination blend function. The initial value is `?GL_ZERO'. See  {@link gl:blendFunc/2} 
-%%  and  {@link gl:blendFuncSeparate/4} . 
-%%
-%% `?GL_BLEND_DST_RGB':  `Params'  returns one value, the symbolic constant identifying
-%% the RGB destination blend function. The initial value is `?GL_ZERO'. See  {@link gl:blendFunc/2} 
-%%  and  {@link gl:blendFuncSeparate/4} . 
-%%
-%% `?GL_BLEND_EQUATION_RGB':  `Params'  returns one value, a symbolic constant indicating
-%% whether the RGB blend equation is `?GL_FUNC_ADD', `?GL_FUNC_SUBTRACT',  `?GL_FUNC_REVERSE_SUBTRACT'
-%% , `?GL_MIN' or `?GL_MAX'. See  {@link gl:blendEquationSeparate/2} . 
-%%
-%% `?GL_BLEND_EQUATION_ALPHA':  `Params'  returns one value, a symbolic constant
-%% indicating whether the Alpha blend equation is `?GL_FUNC_ADD', `?GL_FUNC_SUBTRACT'
-%% ,  `?GL_FUNC_REVERSE_SUBTRACT', `?GL_MIN' or `?GL_MAX'. See  {@link gl:blendEquationSeparate/2} 
-%% . 
-%%
-%% `?GL_BLEND_SRC_ALPHA':  `Params'  returns one value, the symbolic constant identifying
-%% the alpha source blend function. The initial value is `?GL_ONE'. See  {@link gl:blendFunc/2} 
-%%  and  {@link gl:blendFuncSeparate/4} . 
-%%
-%% `?GL_BLEND_SRC_RGB':  `Params'  returns one value, the symbolic constant identifying
-%% the RGB source blend function. The initial value is `?GL_ONE'. See  {@link gl:blendFunc/2} 
-%%  and  {@link gl:blendFuncSeparate/4} . 
-%%
-%% `?GL_COLOR_CLEAR_VALUE':  `Params'  returns four values: the red, green, blue,
-%% and alpha values used to clear the color buffers. Integer values, if requested, are linearly
-%% mapped from the internal floating-point representation such that 1.0 returns the most
-%% positive representable integer value, and   -1.0 returns the most negative representable
-%% integer value. The initial value is (0, 0, 0, 0). See  {@link gl:clearColor/4} . 
-%%
-%% `?GL_COLOR_LOGIC_OP':  `Params'  returns a single boolean value indicating whether
-%% a fragment's RGBA color values are merged into the framebuffer using a logical operation.
-%% The initial value is `?GL_FALSE'. See  {@link gl:logicOp/1} . 
-%%
-%% `?GL_COLOR_WRITEMASK':  `Params'  returns four boolean values: the red, green,
-%% blue, and alpha write enables for the color buffers. The initial value is (`?GL_TRUE',
-%% `?GL_TRUE', `?GL_TRUE', `?GL_TRUE'). See  {@link gl:colorMask/4} . 
-%%
-%% `?GL_COMPRESSED_TEXTURE_FORMATS':  `Params'  returns a list of symbolic constants
-%% of length `?GL_NUM_COMPRESSED_TEXTURE_FORMATS'  indicating which compressed texture
-%% formats are available. See  {@link gl:compressedTexImage2D/8} . 
-%%
-%% `?GL_CONTEXT_FLAGS':  `Params'  returns one value, the flags with which the context
-%% was created (such as debugging functionality). 
-%%
-%% `?GL_CULL_FACE':  `Params'  returns a single boolean value indicating whether
-%% polygon culling is enabled. The initial value is `?GL_FALSE'. See  {@link gl:cullFace/1} 
-%% . 
-%%
-%% `?GL_CURRENT_PROGRAM':  `Params'  returns one value, the name of the program object
-%% that is currently active, or 0 if no program object is active. See  {@link gl:useProgram/1} .
-%% 
-%%
-%% `?GL_DEPTH_CLEAR_VALUE':  `Params'  returns one value, the value that is used
-%% to clear the depth buffer. Integer values, if requested, are linearly mapped from the
-%% internal floating-point representation such that 1.0 returns the most positive representable
-%% integer value, and   -1.0 returns the most negative representable integer value. The initial
-%% value is 1. See  {@link gl:clearDepth/1} . 
-%%
-%% `?GL_DEPTH_FUNC':  `Params'  returns one value, the symbolic constant that indicates
-%% the depth comparison function. The initial value is `?GL_LESS'. See  {@link gl:depthFunc/1} 
-%% . 
-%%
-%% `?GL_DEPTH_RANGE':  `Params'  returns two values: the near and far mapping limits
-%% for the depth buffer. Integer values, if requested, are linearly mapped from the internal
-%% floating-point representation such that 1.0 returns the most positive representable integer
-%% value, and   -1.0 returns the most negative representable integer value. The initial value
-%% is (0, 1). See  {@link gl:depthRange/2} . 
-%%
-%% `?GL_DEPTH_TEST':  `Params'  returns a single boolean value indicating whether
-%% depth testing of fragments is enabled. The initial value is `?GL_FALSE'. See  {@link gl:depthFunc/1} 
-%%  and  {@link gl:depthRange/2} . 
-%%
-%% `?GL_DEPTH_WRITEMASK':  `Params'  returns a single boolean value indicating if
-%% the depth buffer is enabled for writing. The initial value is `?GL_TRUE'. See  {@link gl:depthMask/1} 
-%% . 
-%%
-%% `?GL_DITHER':  `Params'  returns a single boolean value indicating whether dithering
-%% of fragment colors and indices is enabled. The initial value is `?GL_TRUE'. 
-%%
-%% `?GL_DOUBLEBUFFER':  `Params'  returns a single boolean value indicating whether
-%% double buffering is supported. 
-%%
-%% `?GL_DRAW_BUFFER':  `Params'  returns one value, a symbolic constant indicating
-%% which buffers are being drawn to. See  {@link gl:drawBuffer/1} . The initial value is `?GL_BACK'
-%%  if there are back buffers, otherwise it is `?GL_FRONT'. 
-%%
-%% `?GL_DRAW_BUFFER'`i':  `Params'  returns one value, a symbolic constant indicating
-%% which buffers are being drawn to by the corresponding output color. See  {@link gl:drawBuffers/1} 
-%% .  The initial value of `?GL_DRAW_BUFFER0' is `?GL_BACK' if there are back buffers,
-%% otherwise it is `?GL_FRONT'. The initial values of draw buffers for all other output
-%% colors is `?GL_NONE'. 
-%%
-%% `?GL_DRAW_FRAMEBUFFER_BINDING':  `Params'  returns one value, the name of the
-%% framebuffer object currently bound to the `?GL_DRAW_FRAMEBUFFER' target. If the default
-%% framebuffer is bound, this value will be zero. The initial value is zero. See  {@link gl:bindFramebuffer/2} 
-%% . 
-%%
-%% `?GL_READ_FRAMEBUFFER_BINDING':  `Params'  returns one value, the name of the
-%% framebuffer object currently bound to the `?GL_READ_FRAMEBUFFER' target. If the default
-%% framebuffer is bound, this value will be zero. The initial value is zero. See  {@link gl:bindFramebuffer/2} 
-%% . 
-%%
-%% `?GL_ELEMENT_ARRAY_BUFFER_BINDING':  `Params'  returns a single value, the name
-%% of the buffer object currently bound to the target `?GL_ELEMENT_ARRAY_BUFFER'. If
-%% no buffer object is bound to this target, 0 is returned. The initial value is 0. See  {@link gl:bindBuffer/2} 
-%% . 
-%%
-%% `?GL_FRAGMENT_SHADER_DERIVATIVE_HINT':  `Params'  returns one value, a symbolic
-%% constant indicating the mode of the derivative accuracy hint  for fragment shaders. The
-%% initial value is `?GL_DONT_CARE'. See  {@link gl:hint/2} . 
-%%
-%% `?GL_IMPLEMENTATION_COLOR_READ_FORMAT':  `Params'  returns a single GLenum value
-%% indicating the implementation's preferred pixel data format. See  {@link gl:readPixels/7} . 
-%%
-%% `?GL_IMPLEMENTATION_COLOR_READ_TYPE':  `Params'  returns a single GLenum value
-%% indicating the implementation's preferred pixel data type. See  {@link gl:readPixels/7} . 
-%%
-%% `?GL_LINE_SMOOTH':  `Params'  returns a single boolean value indicating whether
-%% antialiasing of lines is enabled. The initial value is `?GL_FALSE'. See  {@link gl:lineWidth/1} 
-%% . 
-%%
-%% `?GL_LINE_SMOOTH_HINT':  `Params'  returns one value, a symbolic constant indicating
-%% the mode of the line antialiasing hint. The initial value is `?GL_DONT_CARE'. See  {@link gl:hint/2} 
-%% . 
-%%
-%% `?GL_LINE_WIDTH':  `Params'  returns one value, the line width as specified with  {@link gl:lineWidth/1} 
-%% . The initial value is 1. 
-%%
-%% `?GL_LAYER_PROVOKING_VERTEX':  `Params'  returns one value, the implementation
-%% dependent specifc vertex of a primitive that is used to select the rendering layer.  If
-%% the value returned is equivalent to `?GL_PROVOKING_VERTEX', then the vertex  selection
-%% follows the convention specified by  {@link gl:provokingVertex/1} . If the value returned
-%% is equivalent to `?GL_FIRST_VERTEX_CONVENTION', then the  selection is always taken
-%% from the first vertex in the primitive. If the value returned is equivalent to `?GL_LAST_VERTEX_CONVENTION'
-%% , then the  selection is always taken from the last vertex in the primitive. If the value
-%% returned is equivalent to `?GL_UNDEFINED_VERTEX', then the  selection is not guaranteed
-%% to be taken from any specific vertex in the primitive. 
-%%
-%% `?GL_LINE_WIDTH_GRANULARITY':  `Params'  returns one value, the width difference
-%% between adjacent supported widths for antialiased lines. See  {@link gl:lineWidth/1} . 
-%%
-%% `?GL_LINE_WIDTH_RANGE':  `Params'  returns two values: the smallest and largest
-%% supported widths for antialiased lines. See  {@link gl:lineWidth/1} . 
-%%
-%% `?GL_LOGIC_OP_MODE':  `Params'  returns one value, a symbolic constant indicating
-%% the selected logic operation mode. The initial value is `?GL_COPY'. See  {@link gl:logicOp/1} 
-%% . 
-%%
-%% `?GL_MAJOR_VERSION':  `Params'  returns one value, the major version number of
-%% the OpenGL API supported by the current context. 
-%%
-%% `?GL_MAX_3D_TEXTURE_SIZE':  `Params'  returns one value, a rough estimate of the
-%% largest 3D texture that the GL can handle. The value must be at least 64. Use `?GL_PROXY_TEXTURE_3D'
-%%  to determine if a texture is too large. See  {@link gl:texImage3D/10} . 
-%%
-%% `?GL_MAX_ARRAY_TEXTURE_LAYERS':  `Params'  returns one value. The value indicates
-%% the maximum number of layers allowed in an array texture, and must be at least 256. See  {@link gl:texImage2D/9} 
-%% . 
-%%
-%% `?GL_MAX_CLIP_DISTANCES':  `Params'  returns one value, the maximum number of
-%% application-defined clipping distances. The value must be at least 8. 
-%%
-%% `?GL_MAX_COLOR_TEXTURE_SAMPLES':  `Params'  returns one value, the maximum number
-%% of samples in a color multisample texture. 
-%%
-%% `?GL_MAX_COMBINED_ATOMIC_COUNTERS':  `Params'  returns a single value, the maximum
-%% number of atomic counters available to all active shaders. 
-%%
-%% `?GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS':  `Params'  returns one value,
-%% the number of words for fragment shader uniform variables in all uniform blocks (including
-%% default). The value must be at least 1. See  {@link gl:uniform1f/2} . 
-%%
-%% `?GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS':  `Params'  returns one value,
-%% the number of words for geometry shader uniform variables in all uniform blocks (including
-%% default). The value must be at least 1. See  {@link gl:uniform1f/2} . 
-%%
-%% `?GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS':  `Params'  returns one value, the maximum
-%% supported texture image units that  can be used to access texture maps from the vertex
-%% shader and the fragment processor combined.  If both the vertex shader and the fragment
-%% processing stage access the same texture image unit, then that counts as using two texture
-%% image units against this limit. The value must be at least 48. See  {@link gl:activeTexture/1} 
-%% . 
-%%
-%% `?GL_MAX_COMBINED_UNIFORM_BLOCKS':  `Params'  returns one value, the maximum number
-%% of uniform blocks per program. The value must be at least 36. See  {@link gl:uniformBlockBinding/3} 
-%% . 
-%%
-%% `?GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS':  `Params'  returns one value, the
-%% number of words for vertex shader uniform variables in all uniform blocks (including default).
-%% The value must be at least 1. See  {@link gl:uniform1f/2} . 
-%%
-%% `?GL_MAX_CUBE_MAP_TEXTURE_SIZE':  `Params'  returns one value. The value gives
-%% a rough estimate of the largest cube-map texture that the GL can handle. The value must
-%% be at least 1024. Use `?GL_PROXY_TEXTURE_CUBE_MAP' to determine if a texture is too
-%% large. See  {@link gl:texImage2D/9} . 
-%%
-%% `?GL_MAX_DEPTH_TEXTURE_SAMPLES':  `Params'  returns one value, the maximum number
-%% of samples in a multisample depth or depth-stencil texture. 
-%%
-%% `?GL_MAX_DRAW_BUFFERS':  `Params'  returns one value, the maximum number of simultaneous
-%% outputs that may be written in a fragment shader. The value must be at least 8. See  {@link gl:drawBuffers/1} 
-%% . 
-%%
-%% `?GL_MAX_DUALSOURCE_DRAW_BUFFERS':  `Params'  returns one value, the maximum number
-%% of active draw buffers when using dual-source blending. The value must be at least 1.
-%% See  {@link gl:blendFunc/2}  and   {@link gl:blendFuncSeparate/4} . 
-%%
-%% `?GL_MAX_ELEMENTS_INDICES':  `Params'  returns one value, the recommended maximum
-%% number of vertex array indices. See  {@link gl:drawRangeElements/6} . 
-%%
-%% `?GL_MAX_ELEMENTS_VERTICES':  `Params'  returns one value, the recommended maximum
-%% number of vertex array vertices. See  {@link gl:drawRangeElements/6} . 
-%%
-%% `?GL_MAX_FRAGMENT_ATOMIC_COUNTERS':  `Params'  returns a single value, the maximum
-%% number of atomic counters available to fragment shaders. 
-%%
-%% `?GL_MAX_FRAGMENT_INPUT_COMPONENTS':  `Params'  returns one value, the maximum
-%% number of components of the inputs read by the fragment shader, which must be at least
-%% 128. 
-%%
-%% `?GL_MAX_FRAGMENT_UNIFORM_COMPONENTS':  `Params'  returns one value, the maximum
-%% number of individual floating-point, integer, or boolean values that can be held  in uniform
-%% variable storage for a fragment shader. The value must be at least 1024. See  {@link gl:uniform1f/2} 
-%% . 
-%%
-%% `?GL_MAX_FRAGMENT_UNIFORM_VECTORS':  `Params'  returns one value, the maximum
-%% number of individual 4-vectors of floating-point, integer, or boolean values that can
-%% be held in uniform variable storage for a fragment shader. The value is equal to the value
-%% of `?GL_MAX_FRAGMENT_UNIFORM_COMPONENTS' divided by 4 and must be at least 256. See  {@link gl:uniform1f/2} 
-%% . 
-%%
-%% `?GL_MAX_FRAGMENT_UNIFORM_BLOCKS':  `Params'  returns one value, the maximum number
-%% of uniform blocks per fragment shader. The value must be at least 12. See  {@link gl:uniformBlockBinding/3} 
-%% . 
-%%
-%% `?GL_MAX_GEOMETRY_ATOMIC_COUNTERS':  `Params'  returns a single value, the maximum
-%% number of atomic counters available to geometry shaders. 
-%%
-%% `?GL_MAX_GEOMETRY_INPUT_COMPONENTS':  `Params'  returns one value, the maximum
-%% number of components of inputs read by a geometry shader, which must be at least 64. 
-%%
-%% `?GL_MAX_GEOMETRY_OUTPUT_COMPONENTS':  `Params'  returns one value, the maximum
-%% number of components of outputs written by a geometry shader, which must be at least 128.
-%% 
-%%
-%% `?GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS':  `Params'  returns one value, the maximum
-%% supported texture image units that  can be used to access texture maps from the geometry
-%% shader. The value must be at least 16. See  {@link gl:activeTexture/1} . 
-%%
-%% `?GL_MAX_GEOMETRY_UNIFORM_BLOCKS':  `Params'  returns one value, the maximum number
-%% of uniform blocks per geometry shader. The value must be at least 12. See  {@link gl:uniformBlockBinding/3} 
-%% . 
-%%
-%% `?GL_MAX_GEOMETRY_UNIFORM_COMPONENTS':  `Params'  returns one value, the maximum
-%% number of individual floating-point, integer, or boolean values that can be held  in uniform
-%% variable storage for a geometry shader. The value must be at least 1024. See  {@link gl:uniform1f/2} 
-%% . 
-%%
-%% `?GL_MAX_INTEGER_SAMPLES':  `Params'  returns one value, the maximum number of
-%% samples supported in integer format multisample buffers. 
-%%
-%% `?GL_MIN_MAP_BUFFER_ALIGNMENT':  `Params'  returns one value, the minimum alignment
-%% in basic machine units of pointers returned fromsee `glMapBuffer' and see `glMapBufferRange'
-%% . This value must be a power of two and must be at least 64. 
-%%
-%% `?GL_MAX_PROGRAM_TEXEL_OFFSET':  `Params'  returns one value, the maximum texel
-%% offset allowed in a texture lookup, which must be at least 7. 
-%%
-%% `?GL_MIN_PROGRAM_TEXEL_OFFSET':  `Params'  returns one value, the minimum texel
-%% offset allowed in a texture lookup, which must be at most -8. 
-%%
-%% `?GL_MAX_RECTANGLE_TEXTURE_SIZE':  `Params'  returns one value. The value gives
-%% a rough estimate of the largest rectangular texture that the GL can handle. The value
-%% must be at least 1024. Use `?GL_PROXY_RECTANGLE_TEXTURE' to determine if a texture
-%% is too large. See  {@link gl:texImage2D/9} . 
-%%
-%% `?GL_MAX_RENDERBUFFER_SIZE':  `Params'  returns one value. The value indicates
-%% the maximum supported size for renderbuffers. See  {@link gl:framebufferRenderbuffer/4} . 
-%%
-%% `?GL_MAX_SAMPLE_MASK_WORDS':  `Params'  returns one value, the maximum number
-%% of sample mask words. 
-%%
-%% `?GL_MAX_SERVER_WAIT_TIMEOUT':  `Params'  returns one value, the maximum  {@link gl:waitSync/3} 
-%%  timeout interval. 
-%%
-%% `?GL_MAX_TESS_CONTROL_ATOMIC_COUNTERS':  `Params'  returns a single value, the
-%% maximum number of atomic counters available to tessellation control shaders. 
-%%
-%% `?GL_MAX_TESS_EVALUATION_ATOMIC_COUNTERS':  `Params'  returns a single value,
-%% the maximum number of atomic counters available to tessellation evaluation shaders. 
-%%
-%% `?GL_MAX_TEXTURE_BUFFER_SIZE':  `Params'  returns one value. The value gives the
-%% maximum number of texels allowed in the texel array of a texture buffer object. Value
-%% must be at least 65536. 
-%%
-%% `?GL_MAX_TEXTURE_IMAGE_UNITS':  `Params'  returns one value, the maximum supported
-%% texture image units that  can be used to access texture maps from the fragment shader.
-%%  The value must be at least 16. See  {@link gl:activeTexture/1} . 
-%%
-%% `?GL_MAX_TEXTURE_LOD_BIAS':  `Params'  returns one value, the maximum, absolute
-%% value of the texture level-of-detail bias. The value must be at least 2.0. 
-%%
-%% `?GL_MAX_TEXTURE_SIZE':  `Params'  returns one value. The value gives a rough
-%% estimate of the largest texture that the GL can handle. The value must be at least 1024.
-%% Use a proxy texture target such as `?GL_PROXY_TEXTURE_1D' or `?GL_PROXY_TEXTURE_2D'
-%%  to determine if a texture is too large. See  {@link gl:texImage1D/8}  and  {@link gl:texImage2D/9} 
-%% . 
-%%
-%% `?GL_MAX_UNIFORM_BUFFER_BINDINGS':  `Params'  returns one value, the maximum number
-%% of uniform buffer binding points on the context, which must be at least 36. 
-%%
-%% `?GL_MAX_UNIFORM_BLOCK_SIZE':  `Params'  returns one value, the maximum size in
-%% basic machine units of a uniform block, which must be at least 16384. 
-%%
-%% `?GL_MAX_VARYING_COMPONENTS':  `Params'  returns one value, the number components
-%% for varying variables, which must be at least 60. 
-%%
-%% `?GL_MAX_VARYING_VECTORS':  `Params'  returns one value, the number 4-vectors
-%% for varying variables, which is equal to the value of `?GL_MAX_VARYING_COMPONENTS'
-%% and must be at least 15. 
-%%
-%% `?GL_MAX_VARYING_FLOATS':  `Params'  returns one value, the maximum number of
-%% interpolators available for processing varying variables used by vertex and fragment shaders.
-%% This value represents the number of individual floating-point  values that can be interpolated;
-%% varying variables declared as vectors, matrices, and arrays  will all consume multiple
-%% interpolators. The value must be at least 32. 
-%%
-%% `?GL_MAX_VERTEX_ATOMIC_COUNTERS':  `Params'  returns a single value, the maximum
-%% number of atomic counters available to vertex shaders. 
-%%
-%% `?GL_MAX_VERTEX_ATTRIBS':  `Params'  returns one value, the maximum number of
-%% 4-component generic vertex attributes accessible to a vertex shader.  The value must be
-%% at least 16. See  {@link gl:vertexAttrib1d/2} . 
-%%
-%% `?GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS':  `Params'  returns one value, the maximum
-%% supported texture image units that  can be used to access texture maps from the vertex
-%% shader. The value may be at least 16. See  {@link gl:activeTexture/1} . 
-%%
-%% `?GL_MAX_VERTEX_UNIFORM_COMPONENTS':  `Params'  returns one value, the maximum
-%% number of individual floating-point, integer, or boolean values that can be held  in uniform
-%% variable storage for a vertex shader. The value must be at least 1024. See  {@link gl:uniform1f/2} 
-%% . 
-%%
-%% `?GL_MAX_VERTEX_UNIFORM_VECTORS':  `Params'  returns one value, the maximum number
-%% of 4-vectors that may be held in uniform variable storage for the vertex shader. The value
-%% of `?GL_MAX_VERTEX_UNIFORM_VECTORS' is equal to the value of `?GL_MAX_VERTEX_UNIFORM_COMPONENTS'
-%%  and must be at least 256. 
-%%
-%% `?GL_MAX_VERTEX_OUTPUT_COMPONENTS':  `Params'  returns one value, the maximum
-%% number of components of output written by a vertex shader, which must be at least 64. 
-%%
-%% `?GL_MAX_VERTEX_UNIFORM_BLOCKS':  `Params'  returns one value, the maximum number
-%% of uniform blocks per vertex shader. The value must be at least 12. See  {@link gl:uniformBlockBinding/3} 
-%% . 
-%%
-%% `?GL_MAX_VIEWPORT_DIMS':  `Params'  returns two values: the maximum supported
-%% width and height of the viewport. These must be at least as large as the visible dimensions
-%% of the display being rendered to. See  {@link gl:viewport/4} . 
-%%
-%% `?GL_MAX_VIEWPORTS':  `Params'  returns one value, the maximum number of simultaneous
-%% viewports that are supported. The value must be at least 16. See  {@link gl:viewportIndexedf/5} 
-%% . 
-%%
-%% `?GL_MINOR_VERSION':  `Params'  returns one value, the minor version number of
-%% the OpenGL API supported by the current context. 
-%%
-%% `?GL_NUM_COMPRESSED_TEXTURE_FORMATS':  `Params'  returns a single integer value
-%% indicating the number of available compressed texture formats. The minimum value is 4.
-%% See  {@link gl:compressedTexImage2D/8} . 
-%%
-%% `?GL_NUM_EXTENSIONS':  `Params'  returns one value, the number of extensions supported
-%% by the GL implementation for the current context. See  {@link gl:getString/1} . 
-%%
-%% `?GL_NUM_PROGRAM_BINARY_FORMATS':  `Params'  returns one value, the number of
-%% program binary formats supported by the implementation. 
-%%
-%% `?GL_NUM_SHADER_BINARY_FORMATS':  `Params'  returns one value, the number of binary
-%% shader formats supported by the implementation. If this value is greater than zero, then
-%% the implementation supports loading binary shaders. If it is zero, then the loading of
-%% binary shaders by the implementation is not supported. 
-%%
-%% `?GL_PACK_ALIGNMENT':  `Params'  returns one value, the byte alignment used for
-%% writing pixel data to memory. The initial value is 4. See  {@link gl:pixelStoref/2} . 
-%%
-%% `?GL_PACK_IMAGE_HEIGHT':  `Params'  returns one value, the image height used for
-%% writing pixel data to memory. The initial value is 0. See  {@link gl:pixelStoref/2} . 
-%%
-%% `?GL_PACK_LSB_FIRST':  `Params'  returns a single boolean value indicating whether
-%% single-bit pixels being written to memory are written first to the least significant bit
-%% of each unsigned byte. The initial value is `?GL_FALSE'. See  {@link gl:pixelStoref/2} .
-%% 
-%%
-%% `?GL_PACK_ROW_LENGTH':  `Params'  returns one value, the row length used for writing
-%% pixel data to memory. The initial value is 0. See  {@link gl:pixelStoref/2} . 
-%%
-%% `?GL_PACK_SKIP_IMAGES':  `Params'  returns one value, the number of pixel images
-%% skipped before the first pixel is written into memory. The initial value is 0. See  {@link gl:pixelStoref/2} 
-%% . 
-%%
-%% `?GL_PACK_SKIP_PIXELS':  `Params'  returns one value, the number of pixel locations
-%% skipped before the first pixel is written into memory. The initial value is 0. See  {@link gl:pixelStoref/2} 
-%% . 
-%%
-%% `?GL_PACK_SKIP_ROWS':  `Params'  returns one value, the number of rows of pixel
-%% locations skipped before the first pixel is written into memory. The initial value is
-%% 0. See  {@link gl:pixelStoref/2} . 
-%%
-%% `?GL_PACK_SWAP_BYTES':  `Params'  returns a single boolean value indicating whether
-%% the bytes of two-byte and four-byte pixel indices and components are swapped before being
-%% written to memory. The initial value is `?GL_FALSE'. See  {@link gl:pixelStoref/2} . 
-%%
-%% `?GL_PIXEL_PACK_BUFFER_BINDING':  `Params'  returns a single value, the name of
-%% the buffer object currently bound to the target `?GL_PIXEL_PACK_BUFFER'. If no buffer
-%% object is bound to this target, 0 is returned. The initial value is 0. See  {@link gl:bindBuffer/2} 
-%% . 
-%%
-%% `?GL_PIXEL_UNPACK_BUFFER_BINDING':  `Params'  returns a single value, the name
-%% of the buffer object currently bound to the target `?GL_PIXEL_UNPACK_BUFFER'. If
-%% no buffer object is bound to this target, 0 is returned. The initial value is 0. See  {@link gl:bindBuffer/2} 
-%% . 
-%%
-%% `?GL_POINT_FADE_THRESHOLD_SIZE':  `Params'  returns one value, the point size
-%% threshold for determining the point size. See  {@link gl:pointParameterf/2} . 
-%%
-%% `?GL_PRIMITIVE_RESTART_INDEX':  `Params'  returns one value, the current primitive
-%% restart index. The initial value is 0. See  {@link gl:primitiveRestartIndex/1} . 
-%%
-%% `?GL_PROGRAM_BINARY_FORMATS':  `Params'  an array of `?GL_NUM_PROGRAM_BINARY_FORMATS'
-%%  values, indicating the proram binary formats supported by the implementation. 
-%%
-%% `?GL_PROGRAM_PIPELINE_BINDING':  `Params'  a single value, the name of the currently
-%% bound program pipeline object, or zero if no program pipeline object is bound. See  {@link gl:bindProgramPipeline/1} 
-%% . 
-%%
-%% `?GL_PROVOKING_VERTEX':  `Params'  returns one value, the currently selected provoking
-%% vertex convention. The initial value is `?GL_LAST_VERTEX_CONVENTION'. See  {@link gl:provokingVertex/1} 
-%% . 
-%%
-%% `?GL_POINT_SIZE':  `Params'  returns one value, the point size as specified by  {@link gl:pointSize/1} 
-%% . The initial value is 1. 
-%%
-%% `?GL_POINT_SIZE_GRANULARITY':  `Params'  returns one value, the size difference
-%% between adjacent supported sizes for antialiased points. See  {@link gl:pointSize/1} . 
-%%
-%% `?GL_POINT_SIZE_RANGE':  `Params'  returns two values: the smallest and largest
-%% supported sizes for antialiased points. The smallest size must be at most 1, and the largest
-%% size must be at least 1. See  {@link gl:pointSize/1} . 
-%%
-%% `?GL_POLYGON_OFFSET_FACTOR':  `Params'  returns one value, the scaling factor
-%% used to determine the variable offset that is added to the depth value of each fragment
-%% generated when a polygon is rasterized. The initial value is 0. See  {@link gl:polygonOffset/2} 
-%% . 
-%%
-%% `?GL_POLYGON_OFFSET_UNITS':  `Params'  returns one value. This value is multiplied
-%% by an implementation-specific value and then added to the depth value of each fragment
-%% generated when a polygon is rasterized. The initial value is 0. See  {@link gl:polygonOffset/2} 
-%% . 
-%%
-%% `?GL_POLYGON_OFFSET_FILL':  `Params'  returns a single boolean value indicating
-%% whether polygon offset is enabled for polygons in fill mode. The initial value is `?GL_FALSE'
-%% . See  {@link gl:polygonOffset/2} . 
-%%
-%% `?GL_POLYGON_OFFSET_LINE':  `Params'  returns a single boolean value indicating
-%% whether polygon offset is enabled for polygons in line mode. The initial value is `?GL_FALSE'
-%% . See  {@link gl:polygonOffset/2} . 
-%%
-%% `?GL_POLYGON_OFFSET_POINT':  `Params'  returns a single boolean value indicating
-%% whether polygon offset is enabled for polygons in point mode. The initial value is `?GL_FALSE'
-%% . See  {@link gl:polygonOffset/2} . 
-%%
-%% `?GL_POLYGON_SMOOTH':  `Params'  returns a single boolean value indicating whether
-%% antialiasing of polygons is enabled. The initial value is `?GL_FALSE'. See  {@link gl:polygonMode/2} 
-%% . 
-%%
-%% `?GL_POLYGON_SMOOTH_HINT':  `Params'  returns one value, a symbolic constant indicating
-%% the mode of the polygon antialiasing hint. The initial value is `?GL_DONT_CARE'.
-%% See  {@link gl:hint/2} . 
-%%
-%% `?GL_READ_BUFFER':  `Params'  returns one value, a symbolic constant indicating
-%% which color buffer is selected for reading. The initial value is `?GL_BACK' if there
-%% is a back buffer, otherwise it is `?GL_FRONT'. See  {@link gl:readPixels/7} . 
-%%
-%% `?GL_RENDERBUFFER_BINDING':  `Params'  returns a single value, the name of the
-%% renderbuffer object currently bound to the target `?GL_RENDERBUFFER'. If no renderbuffer
-%% object is bound to this target, 0 is returned. The initial value is 0. See  {@link gl:bindRenderbuffer/2} 
-%% . 
-%%
-%% `?GL_SAMPLE_BUFFERS':  `Params'  returns a single integer value indicating the
-%% number of sample buffers associated with the framebuffer. See  {@link gl:sampleCoverage/2} .
-%% 
-%%
-%% `?GL_SAMPLE_COVERAGE_VALUE':  `Params'  returns a single positive floating-point
-%% value indicating the current sample coverage value. See  {@link gl:sampleCoverage/2} . 
-%%
-%% `?GL_SAMPLE_COVERAGE_INVERT':  `Params'  returns a single boolean value indicating
-%% if the temporary coverage value should be inverted. See  {@link gl:sampleCoverage/2} . 
-%%
-%% `?GL_SAMPLER_BINDING':  `Params'  returns a single value, the name of the sampler
-%% object currently bound to the active texture unit. The initial value is 0. See  {@link gl:bindSampler/2} 
-%% . 
-%%
-%% `?GL_SAMPLES':  `Params'  returns a single integer value indicating the coverage
-%% mask size. See  {@link gl:sampleCoverage/2} . 
-%%
-%% `?GL_SCISSOR_BOX':  `Params'  returns four values: the   x and   y window coordinates
-%% of the scissor box, followed by its width and height. Initially the   x and   y window
-%% coordinates are both 0 and the width and height are set to the size of the window. See  {@link gl:scissor/4} 
-%% . 
-%%
-%% `?GL_SCISSOR_TEST':  `Params'  returns a single boolean value indicating whether
-%% scissoring is enabled. The initial value is `?GL_FALSE'. See  {@link gl:scissor/4} . 
-%%
-%% `?GL_SHADER_COMPILER':  `Params'  returns a single boolean value indicating whether
-%% an online shader compiler is present in the implementation. All desktop OpenGL implementations
-%% must support online shader compilations, and therefore the value of `?GL_SHADER_COMPILER'
-%%  will always be `?GL_TRUE'. 
-%%
-%% `?GL_SMOOTH_LINE_WIDTH_RANGE':  `Params'  returns a pair of values indicating
-%% the range of widths supported for smooth (antialiased) lines. See  {@link gl:lineWidth/1} . 
-%%
-%% `?GL_SMOOTH_LINE_WIDTH_GRANULARITY':  `Params'  returns a single value indicating
-%% the level of quantization applied to smooth line width parameters. 
-%%
-%% `?GL_STENCIL_BACK_FAIL':  `Params'  returns one value, a symbolic constant indicating
-%% what action is taken for back-facing polygons when the stencil test fails. The initial
-%% value is `?GL_KEEP'. See  {@link gl:stencilOpSeparate/4} . 
-%%
-%% `?GL_STENCIL_BACK_FUNC':  `Params'  returns one value, a symbolic constant indicating
-%% what function is used for back-facing polygons to compare the stencil reference value
-%% with the stencil buffer value. The initial value is `?GL_ALWAYS'. See  {@link gl:stencilFuncSeparate/4} 
-%% . 
-%%
-%% `?GL_STENCIL_BACK_PASS_DEPTH_FAIL':  `Params'  returns one value, a symbolic constant
-%% indicating what action is taken for back-facing polygons when the stencil test passes,
-%% but the depth test fails. The initial value is `?GL_KEEP'. See  {@link gl:stencilOpSeparate/4} 
-%% . 
-%%
-%% `?GL_STENCIL_BACK_PASS_DEPTH_PASS':  `Params'  returns one value, a symbolic constant
-%% indicating what action is taken for back-facing polygons when the stencil test passes
-%% and the depth test passes. The initial value is `?GL_KEEP'. See  {@link gl:stencilOpSeparate/4} 
-%% . 
-%%
-%% `?GL_STENCIL_BACK_REF':  `Params'  returns one value, the reference value that
-%% is compared with the contents of the stencil buffer for back-facing polygons. The initial
-%% value is 0. See  {@link gl:stencilFuncSeparate/4} . 
-%%
-%% `?GL_STENCIL_BACK_VALUE_MASK':  `Params'  returns one value, the mask that is
-%% used for back-facing polygons to mask both the stencil reference value and the stencil
-%% buffer value before they are compared. The initial value is all 1's. See  {@link gl:stencilFuncSeparate/4} 
-%% . 
-%%
-%% `?GL_STENCIL_BACK_WRITEMASK':  `Params'  returns one value, the mask that controls
-%% writing of the stencil bitplanes for back-facing polygons. The initial value is all 1's.
-%% See  {@link gl:stencilMaskSeparate/2} . 
-%%
-%% `?GL_STENCIL_CLEAR_VALUE':  `Params'  returns one value, the index to which the
-%% stencil bitplanes are cleared. The initial value is 0. See  {@link gl:clearStencil/1} . 
-%%
-%% `?GL_STENCIL_FAIL':  `Params'  returns one value, a symbolic constant indicating
-%% what action is taken when the stencil test fails. The initial value is `?GL_KEEP'.
-%% See  {@link gl:stencilOp/3} . This stencil state only affects non-polygons and front-facing
-%% polygons. Back-facing polygons use separate stencil state. See  {@link gl:stencilOpSeparate/4} 
-%% . 
-%%
-%% `?GL_STENCIL_FUNC':  `Params'  returns one value, a symbolic constant indicating
-%% what function is used to compare the stencil reference value with the stencil buffer value.
-%% The initial value is `?GL_ALWAYS'. See  {@link gl:stencilFunc/3} . This stencil state
-%% only affects non-polygons and front-facing polygons. Back-facing polygons use separate
-%% stencil state. See  {@link gl:stencilFuncSeparate/4} . 
-%%
-%% `?GL_STENCIL_PASS_DEPTH_FAIL':  `Params'  returns one value, a symbolic constant
-%% indicating what action is taken when the stencil test passes, but the depth test fails.
-%% The initial value is `?GL_KEEP'. See  {@link gl:stencilOp/3} . This stencil state only
-%% affects non-polygons and front-facing polygons. Back-facing polygons use separate stencil
-%% state. See  {@link gl:stencilOpSeparate/4} . 
-%%
-%% `?GL_STENCIL_PASS_DEPTH_PASS':  `Params'  returns one value, a symbolic constant
-%% indicating what action is taken when the stencil test passes and the depth test passes.
-%% The initial value is `?GL_KEEP'. See  {@link gl:stencilOp/3} . This stencil state only
-%% affects non-polygons and front-facing polygons. Back-facing polygons use separate stencil
-%% state. See  {@link gl:stencilOpSeparate/4} . 
-%%
-%% `?GL_STENCIL_REF':  `Params'  returns one value, the reference value that is compared
-%% with the contents of the stencil buffer. The initial value is 0. See  {@link gl:stencilFunc/3} 
-%% . This stencil state only affects non-polygons and front-facing polygons. Back-facing
-%% polygons use separate stencil state. See  {@link gl:stencilFuncSeparate/4} . 
-%%
-%% `?GL_STENCIL_TEST':  `Params'  returns a single boolean value indicating whether
-%% stencil testing of fragments is enabled. The initial value is `?GL_FALSE'. See  {@link gl:stencilFunc/3} 
-%%  and  {@link gl:stencilOp/3} . 
-%%
-%% `?GL_STENCIL_VALUE_MASK':  `Params'  returns one value, the mask that is used
-%% to mask both the stencil reference value and the stencil buffer value before they are
-%% compared. The initial value is all 1's. See  {@link gl:stencilFunc/3} . This stencil state
-%% only affects non-polygons and front-facing polygons. Back-facing polygons use separate
-%% stencil state. See  {@link gl:stencilFuncSeparate/4} . 
-%%
-%% `?GL_STENCIL_WRITEMASK':  `Params'  returns one value, the mask that controls
-%% writing of the stencil bitplanes. The initial value is all 1's. See  {@link gl:stencilMask/1} 
-%% . This stencil state only affects non-polygons and front-facing polygons. Back-facing
-%% polygons use separate stencil state. See  {@link gl:stencilMaskSeparate/2} . 
-%%
-%% `?GL_STEREO':  `Params'  returns a single boolean value indicating whether stereo
-%% buffers (left and right) are supported. 
-%%
-%% `?GL_SUBPIXEL_BITS':  `Params'  returns one value, an estimate of the number of
-%% bits of subpixel resolution that are used to position rasterized geometry in window coordinates.
-%% The value must be at least 4. 
-%%
-%% `?GL_TEXTURE_BINDING_1D':  `Params'  returns a single value, the name of the texture
-%% currently bound to the target `?GL_TEXTURE_1D'. The initial value is 0. See  {@link gl:bindTexture/2} 
-%% . 
-%%
-%% `?GL_TEXTURE_BINDING_1D_ARRAY':  `Params'  returns a single value, the name of
-%% the texture currently bound to the target `?GL_TEXTURE_1D_ARRAY'. The initial value
-%% is 0. See  {@link gl:bindTexture/2} . 
-%%
-%% `?GL_TEXTURE_BINDING_2D':  `Params'  returns a single value, the name of the texture
-%% currently bound to the target `?GL_TEXTURE_2D'. The initial value is 0. See  {@link gl:bindTexture/2} 
-%% . 
-%%
-%% `?GL_TEXTURE_BINDING_2D_ARRAY':  `Params'  returns a single value, the name of
-%% the texture currently bound to the target `?GL_TEXTURE_2D_ARRAY'. The initial value
-%% is 0. See  {@link gl:bindTexture/2} . 
-%%
-%% `?GL_TEXTURE_BINDING_2D_MULTISAMPLE':  `Params'  returns a single value, the name
-%% of the texture currently bound to the target `?GL_TEXTURE_2D_MULTISAMPLE'. The initial
-%% value is 0. See  {@link gl:bindTexture/2} . 
-%%
-%% `?GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY':  `Params'  returns a single value,
-%% the name of the texture currently bound to the target `?GL_TEXTURE_2D_MULTISAMPLE_ARRAY'
-%% . The initial value is 0. See  {@link gl:bindTexture/2} . 
-%%
-%% `?GL_TEXTURE_BINDING_3D':  `Params'  returns a single value, the name of the texture
-%% currently bound to the target `?GL_TEXTURE_3D'. The initial value is 0. See  {@link gl:bindTexture/2} 
-%% . 
-%%
-%% `?GL_TEXTURE_BINDING_BUFFER':  `Params'  returns a single value, the name of the
-%% texture currently bound to the target `?GL_TEXTURE_BUFFER'. The initial value is
-%% 0. See  {@link gl:bindTexture/2} . 
-%%
-%% `?GL_TEXTURE_BINDING_CUBE_MAP':  `Params'  returns a single value, the name of
-%% the texture currently bound to the target `?GL_TEXTURE_CUBE_MAP'. The initial value
-%% is 0. See  {@link gl:bindTexture/2} . 
-%%
-%% `?GL_TEXTURE_BINDING_RECTANGLE':  `Params'  returns a single value, the name of
-%% the texture currently bound to the target `?GL_TEXTURE_RECTANGLE'. The initial value
-%% is 0. See  {@link gl:bindTexture/2} . 
-%%
-%% `?GL_TEXTURE_COMPRESSION_HINT':  `Params'  returns a single value indicating the
-%% mode of the texture compression hint. The initial value is `?GL_DONT_CARE'. 
-%%
-%% `?GL_TEXTURE_BUFFER_BINDING':  `Params'  returns a single value, the name of the
-%% texture buffer object currently bound. The initial value is 0. See  {@link gl:bindBuffer/2} .
-%% 
-%%
-%% `?GL_TIMESTAMP':  `Params'  returns a single value, the 64-bit value of the current
-%% GL time. See  {@link gl:queryCounter/2} . 
-%%
-%% `?GL_TRANSFORM_FEEDBACK_BUFFER_BINDING':  When used with non-indexed variants of ``gl:get''
-%%  (such as ``gl:getIntegerv''),  `Params'  returns a single value, the name of the
-%% buffer object currently bound to the target `?GL_TRANSFORM_FEEDBACK_BUFFER'. If no
-%% buffer object is bound to this target, 0 is returned. When used with indexed variants of ``gl:get''
-%%  (such as ``gl:getIntegeri_v''),  `Params'  returns a single value, the name of the
-%% buffer object bound to the indexed transform feedback attribute stream. The initial value
-%% is 0 for all targets. See  {@link gl:bindBuffer/2} ,  {@link gl:bindBufferBase/3} , and  {@link gl:bindBufferRange/5} 
-%% . 
-%%
-%% `?GL_TRANSFORM_FEEDBACK_BUFFER_START':  When used with indexed variants of ``gl:get''
-%%  (such as ``gl:getInteger64i_v''),  `Params'  returns a single value, the start offset
-%% of the binding range for each transform feedback attribute stream. The initial value is
-%% 0 for all streams. See  {@link gl:bindBufferRange/5} . 
-%%
-%% `?GL_TRANSFORM_FEEDBACK_BUFFER_SIZE':  When used with indexed variants of ``gl:get''
-%%  (such as ``gl:getInteger64i_v''),  `Params'  returns a single value, the size of
-%% the binding range for each transform feedback attribute stream. The initial value is 0
-%% for all streams. See  {@link gl:bindBufferRange/5} . 
-%%
-%% `?GL_UNIFORM_BUFFER_BINDING':  When used with non-indexed variants of ``gl:get''
-%% (such as ``gl:getIntegerv''),  `Params'  returns a single value, the name of the
-%% buffer object currently bound to the target `?GL_UNIFORM_BUFFER'. If no buffer object
-%% is bound to this target, 0 is returned. When used with indexed variants of ``gl:get''
-%% (such as ``gl:getIntegeri_v''),  `Params'  returns a single value, the name of the
-%% buffer object bound to the indexed uniform buffer binding point. The initial value is
-%% 0 for all targets. See  {@link gl:bindBuffer/2} ,  {@link gl:bindBufferBase/3} , and  {@link gl:bindBufferRange/5} 
-%% . 
-%%
-%% `?GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT':  `Params'  returns a single value, the
-%% minimum required alignment for uniform buffer sizes and offset. The initial value is 1.
-%% See  {@link gl:uniformBlockBinding/3} . 
-%%
-%% `?GL_UNIFORM_BUFFER_SIZE':  When used with indexed variants of ``gl:get'' (such
-%% as ``gl:getInteger64i_v''),  `Params'  returns a single value, the size of the binding
-%% range for each indexed uniform buffer binding. The initial value is 0 for all bindings.
-%% See  {@link gl:bindBufferRange/5} . 
-%%
-%% `?GL_UNIFORM_BUFFER_START':  When used with indexed variants of ``gl:get'' (such
-%% as ``gl:getInteger64i_v''),  `Params'  returns a single value, the start offset of
-%% the binding range for each indexed uniform buffer binding. The initial value is 0 for
-%% all bindings. See  {@link gl:bindBufferRange/5} . 
-%%
-%% `?GL_UNPACK_ALIGNMENT':  `Params'  returns one value, the byte alignment used
-%% for reading pixel data from memory. The initial value is 4. See  {@link gl:pixelStoref/2} . 
-%%
-%% `?GL_UNPACK_IMAGE_HEIGHT':  `Params'  returns one value, the image height used
-%% for reading pixel data from memory. The initial is 0. See  {@link gl:pixelStoref/2} . 
-%%
-%% `?GL_UNPACK_LSB_FIRST':  `Params'  returns a single boolean value indicating whether
-%% single-bit pixels being read from memory are read first from the least significant bit
-%% of each unsigned byte. The initial value is `?GL_FALSE'. See  {@link gl:pixelStoref/2} .
-%% 
-%%
-%% `?GL_UNPACK_ROW_LENGTH':  `Params'  returns one value, the row length used for
-%% reading pixel data from memory. The initial value is 0. See  {@link gl:pixelStoref/2} . 
-%%
-%% `?GL_UNPACK_SKIP_IMAGES':  `Params'  returns one value, the number of pixel images
-%% skipped before the first pixel is read from memory. The initial value is 0. See  {@link gl:pixelStoref/2} 
-%% . 
-%%
-%% `?GL_UNPACK_SKIP_PIXELS':  `Params'  returns one value, the number of pixel locations
-%% skipped before the first pixel is read from memory. The initial value is 0. See  {@link gl:pixelStoref/2} 
-%% . 
-%%
-%% `?GL_UNPACK_SKIP_ROWS':  `Params'  returns one value, the number of rows of pixel
-%% locations skipped before the first pixel is read from memory. The initial value is 0.
-%% See  {@link gl:pixelStoref/2} . 
-%%
-%% `?GL_UNPACK_SWAP_BYTES':  `Params'  returns a single boolean value indicating
-%% whether the bytes of two-byte and four-byte pixel indices and components are swapped after
-%% being read from memory. The initial value is `?GL_FALSE'. See  {@link gl:pixelStoref/2} .
-%% 
-%%
-%% `?GL_VERTEX_PROGRAM_POINT_SIZE':  `Params'  returns a single boolean value indicating
-%% whether vertex program point size mode is enabled. If enabled, and a vertex shader is
-%% active, then the point size is taken from the shader built-in gl_PointSize. If disabled,
-%% and a vertex shader is active, then the point size is taken from the point state as specified
-%% by  {@link gl:pointSize/1} . The initial value is `?GL_FALSE'. 
-%%
-%% `?GL_VIEWPORT':  When used with non-indexed variants of ``gl:get'' (such as ``gl:getIntegerv''
-%% ),  `Params'  returns four values: the   x and   y window coordinates of the viewport,
-%% followed by its width and height. Initially the   x and   y window coordinates are both
-%% set to 0, and the width and height are set to the width and height of the window into
-%% which the GL will do its rendering. See  {@link gl:viewport/4} .  When used with indexed
-%% variants of ``gl:get'' (such as ``gl:getIntegeri_v''),  `Params'  returns four
-%% values: the   x and   y window coordinates of the indexed viewport, followed by its width
-%% and height. Initially the   x and   y window coordinates are both set to 0, and the width
-%% and height are set to the width and height of the window into which the GL will do its
-%% rendering. See  {@link gl:viewportIndexedf/5} . 
-%%
-%% `?GL_VIEWPORT_BOUNDS_RANGE':  `Params'  returns two values, the minimum and maximum
-%% viewport bounds range. The minimum range should be at least [-32768, 32767]. 
-%%
-%% `?GL_VIEWPORT_INDEX_PROVOKING_VERTEX':  `Params'  returns one value, the implementation
-%% dependent specifc vertex of a primitive that is used to select the viewport index.  If
-%% the value returned is equivalent to `?GL_PROVOKING_VERTEX', then the vertex  selection
-%% follows the convention specified by  {@link gl:provokingVertex/1} . If the value returned
-%% is equivalent to `?GL_FIRST_VERTEX_CONVENTION', then the  selection is always taken
-%% from the first vertex in the primitive. If the value returned is equivalent to `?GL_LAST_VERTEX_CONVENTION'
-%% , then the  selection is always taken from the last vertex in the primitive. If the value
-%% returned is equivalent to `?GL_UNDEFINED_VERTEX', then the  selection is not guaranteed
-%% to be taken from any specific vertex in the primitive. 
-%%
-%% `?GL_VIEWPORT_SUBPIXEL_BITS':  `Params'  returns a single value, the number of
-%% bits of sub-pixel precision which the GL  uses to interpret the floating point viewport
-%% bounds. The minimum value is 0. 
-%%
-%%  Many of the boolean parameters can also be queried more easily using  {@link gl:isEnabled/1} 
-%% . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGet.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGet.xhtml">external</a> documentation.
 -spec getBooleanv(Pname) -> [0|1] when Pname :: enum().
 getBooleanv(Pname) ->
   call(5065, <<Pname:?GLenum>>).
@@ -1968,131 +698,7 @@ getIntegerv(Pname) ->
 %% together. The special mask `?GL_ALL_ATTRIB_BITS' can be used to save all stackable
 %% states. 
 %%
-%%  The symbolic mask constants and their associated GL state are as follows (the second
-%% column lists which attributes are saved): 
-%%
-%% <table><tbody><tr><td>`?GL_ACCUM_BUFFER_BIT'</td><td> Accumulation buffer clear value
-%% </td></tr><tr><td>`?GL_COLOR_BUFFER_BIT'</td><td>`?GL_ALPHA_TEST' enable bit </td>
-%% </tr><tr><td></td><td> Alpha test function and reference value </td></tr><tr><td></td><td>
-%% `?GL_BLEND' enable bit </td></tr><tr><td></td><td> Blending source and destination
-%% functions </td></tr><tr><td></td><td> Constant blend color </td></tr><tr><td></td><td>
-%% Blending equation </td></tr><tr><td></td><td>`?GL_DITHER' enable bit </td></tr><tr><td>
-%% </td><td>`?GL_DRAW_BUFFER' setting </td></tr><tr><td></td><td>`?GL_COLOR_LOGIC_OP'
-%%  enable bit </td></tr><tr><td></td><td>`?GL_INDEX_LOGIC_OP' enable bit </td></tr><tr>
-%% <td></td><td> Logic op function </td></tr><tr><td></td><td> Color mode and index mode
-%% clear values </td></tr><tr><td></td><td> Color mode and index mode writemasks </td></tr><tr>
-%% <td>`?GL_CURRENT_BIT'</td><td> Current RGBA color </td></tr><tr><td></td><td> Current
-%% color index </td></tr><tr><td></td><td> Current normal vector </td></tr><tr><td></td><td>
-%% Current texture coordinates </td></tr><tr><td></td><td> Current raster position </td></tr>
-%% <tr><td></td><td>`?GL_CURRENT_RASTER_POSITION_VALID' flag </td></tr><tr><td></td><td>
-%%  RGBA color associated with current raster position </td></tr><tr><td></td><td> Color
-%% index associated with current raster position </td></tr><tr><td></td><td> Texture coordinates
-%% associated with current raster position </td></tr><tr><td></td><td>`?GL_EDGE_FLAG'
-%% flag </td></tr><tr><td>`?GL_DEPTH_BUFFER_BIT'</td><td>`?GL_DEPTH_TEST' enable
-%% bit </td></tr><tr><td></td><td> Depth buffer test function </td></tr><tr><td></td><td>
-%% Depth buffer clear value </td></tr><tr><td></td><td>`?GL_DEPTH_WRITEMASK' enable
-%% bit </td></tr><tr><td>`?GL_ENABLE_BIT'</td><td>`?GL_ALPHA_TEST' flag </td></tr><tr>
-%% <td></td><td>`?GL_AUTO_NORMAL' flag </td></tr><tr><td></td><td>`?GL_BLEND' flag
-%% </td></tr><tr><td></td><td> Enable bits for the user-definable clipping planes </td></tr><tr>
-%% <td></td><td>`?GL_COLOR_MATERIAL'</td></tr><tr><td></td><td>`?GL_CULL_FACE'
-%% flag </td></tr><tr><td></td><td>`?GL_DEPTH_TEST' flag </td></tr><tr><td></td><td>`?GL_DITHER'
-%%  flag </td></tr><tr><td></td><td>`?GL_FOG' flag </td></tr><tr><td></td><td>`?GL_LIGHT'
-%% `i'    where     `?0' &lt;=       `i' &lt;     `?GL_MAX_LIGHTS'</td></tr>
-%% <tr><td></td><td>`?GL_LIGHTING' flag </td></tr><tr><td></td><td>`?GL_LINE_SMOOTH'
-%%  flag </td></tr><tr><td></td><td>`?GL_LINE_STIPPLE' flag </td></tr><tr><td></td><td>`?GL_COLOR_LOGIC_OP'
-%%  flag </td></tr><tr><td></td><td>`?GL_INDEX_LOGIC_OP' flag </td></tr><tr><td></td><td>
-%% `?GL_MAP1_'`x' where `x' is a map type </td></tr><tr><td></td><td>`?GL_MAP2_'
-%% `x' where `x' is a map type </td></tr><tr><td></td><td>`?GL_MULTISAMPLE'
-%% flag </td></tr><tr><td></td><td>`?GL_NORMALIZE' flag </td></tr><tr><td></td><td>`?GL_POINT_SMOOTH'
-%%  flag </td></tr><tr><td></td><td>`?GL_POLYGON_OFFSET_LINE' flag </td></tr><tr><td></td>
-%% <td>`?GL_POLYGON_OFFSET_FILL' flag </td></tr><tr><td></td><td>`?GL_POLYGON_OFFSET_POINT'
-%%  flag </td></tr><tr><td></td><td>`?GL_POLYGON_SMOOTH' flag </td></tr><tr><td></td><td>
-%% `?GL_POLYGON_STIPPLE' flag </td></tr><tr><td></td><td>`?GL_SAMPLE_ALPHA_TO_COVERAGE'
-%%  flag </td></tr><tr><td></td><td>`?GL_SAMPLE_ALPHA_TO_ONE' flag </td></tr><tr><td></td>
-%% <td>`?GL_SAMPLE_COVERAGE' flag </td></tr><tr><td></td><td>`?GL_SCISSOR_TEST'
-%% flag </td></tr><tr><td></td><td>`?GL_STENCIL_TEST' flag </td></tr><tr><td></td><td>`?GL_TEXTURE_1D'
-%%  flag </td></tr><tr><td></td><td>`?GL_TEXTURE_2D' flag </td></tr><tr><td></td><td>`?GL_TEXTURE_3D'
-%%  flag </td></tr><tr><td></td><td> Flags `?GL_TEXTURE_GEN_'`x' where `x'
-%% is S, T, R, or Q </td></tr><tr><td>`?GL_EVAL_BIT'</td><td>`?GL_MAP1_'`x'
-%% enable bits, where `x' is a map type </td></tr><tr><td></td><td>`?GL_MAP2_'`x'
-%%  enable bits, where `x' is a map type </td></tr><tr><td></td><td> 1D grid endpoints
-%% and divisions </td></tr><tr><td></td><td> 2D grid endpoints and divisions </td></tr><tr><td>
-%% </td><td>`?GL_AUTO_NORMAL' enable bit </td></tr><tr><td>`?GL_FOG_BIT'</td><td>`?GL_FOG'
-%%  enable bit </td></tr><tr><td></td><td> Fog color </td></tr><tr><td></td><td> Fog density
-%% </td></tr><tr><td></td><td> Linear fog start </td></tr><tr><td></td><td> Linear fog end </td>
-%% </tr><tr><td></td><td> Fog index </td></tr><tr><td></td><td>`?GL_FOG_MODE' value </td>
-%% </tr><tr><td>`?GL_HINT_BIT'</td><td>`?GL_PERSPECTIVE_CORRECTION_HINT' setting </td>
-%% </tr><tr><td></td><td>`?GL_POINT_SMOOTH_HINT' setting </td></tr><tr><td></td><td>`?GL_LINE_SMOOTH_HINT'
-%%  setting </td></tr><tr><td></td><td>`?GL_POLYGON_SMOOTH_HINT' setting </td></tr><tr><td>
-%% </td><td>`?GL_FOG_HINT' setting </td></tr><tr><td></td><td>`?GL_GENERATE_MIPMAP_HINT'
-%%  setting </td></tr><tr><td></td><td>`?GL_TEXTURE_COMPRESSION_HINT' setting </td></tr>
-%% <tr><td>`?GL_LIGHTING_BIT'</td><td>`?GL_COLOR_MATERIAL' enable bit </td></tr><tr>
-%% <td></td><td>`?GL_COLOR_MATERIAL_FACE' value </td></tr><tr><td></td><td> Color material
-%% parameters that are tracking the current color </td></tr><tr><td></td><td> Ambient scene
-%% color </td></tr><tr><td></td><td>`?GL_LIGHT_MODEL_LOCAL_VIEWER' value </td></tr><tr><td>
-%% </td><td>`?GL_LIGHT_MODEL_TWO_SIDE' setting </td></tr><tr><td></td><td>`?GL_LIGHTING'
-%%  enable bit </td></tr><tr><td></td><td> Enable bit for each light </td></tr><tr><td></td><td>
-%%  Ambient, diffuse, and specular intensity for each light </td></tr><tr><td></td><td> Direction,
-%% position, exponent, and cutoff angle for each light </td></tr><tr><td></td><td> Constant,
-%% linear, and quadratic attenuation factors for each light </td></tr><tr><td></td><td> Ambient,
-%% diffuse, specular, and emissive color for each material </td></tr><tr><td></td><td> Ambient,
-%% diffuse, and specular color indices for each material </td></tr><tr><td></td><td> Specular
-%% exponent for each material </td></tr><tr><td></td><td>`?GL_SHADE_MODEL' setting </td>
-%% </tr><tr><td>`?GL_LINE_BIT'</td><td>`?GL_LINE_SMOOTH' flag </td></tr><tr><td></td>
-%% <td>`?GL_LINE_STIPPLE' enable bit </td></tr><tr><td></td><td> Line stipple pattern
-%% and repeat counter </td></tr><tr><td></td><td> Line width </td></tr><tr><td>`?GL_LIST_BIT'
-%% </td><td>`?GL_LIST_BASE' setting </td></tr><tr><td>`?GL_MULTISAMPLE_BIT'</td><td>
-%% `?GL_MULTISAMPLE' flag </td></tr><tr><td></td><td>`?GL_SAMPLE_ALPHA_TO_COVERAGE'
-%% flag </td></tr><tr><td></td><td>`?GL_SAMPLE_ALPHA_TO_ONE' flag </td></tr><tr><td></td>
-%% <td>`?GL_SAMPLE_COVERAGE' flag </td></tr><tr><td></td><td>`?GL_SAMPLE_COVERAGE_VALUE'
-%%  value </td></tr><tr><td></td><td>`?GL_SAMPLE_COVERAGE_INVERT' value </td></tr><tr><td>
-%% `?GL_PIXEL_MODE_BIT'</td><td>`?GL_RED_BIAS' and `?GL_RED_SCALE' settings </td>
-%% </tr><tr><td></td><td>`?GL_GREEN_BIAS' and `?GL_GREEN_SCALE' values </td></tr><tr>
-%% <td></td><td>`?GL_BLUE_BIAS' and `?GL_BLUE_SCALE'</td></tr><tr><td></td><td>`?GL_ALPHA_BIAS'
-%%  and `?GL_ALPHA_SCALE'</td></tr><tr><td></td><td>`?GL_DEPTH_BIAS' and `?GL_DEPTH_SCALE'
-%% </td></tr><tr><td></td><td>`?GL_INDEX_OFFSET' and `?GL_INDEX_SHIFT' values </td>
-%% </tr><tr><td></td><td>`?GL_MAP_COLOR' and `?GL_MAP_STENCIL' flags </td></tr><tr>
-%% <td></td><td>`?GL_ZOOM_X' and `?GL_ZOOM_Y' factors </td></tr><tr><td></td><td>`?GL_READ_BUFFER'
-%%  setting </td></tr><tr><td>`?GL_POINT_BIT'</td><td>`?GL_POINT_SMOOTH' flag </td>
-%% </tr><tr><td></td><td> Point size </td></tr><tr><td>`?GL_POLYGON_BIT'</td><td>`?GL_CULL_FACE'
-%%  enable bit </td></tr><tr><td></td><td>`?GL_CULL_FACE_MODE' value </td></tr><tr><td></td>
-%% <td>`?GL_FRONT_FACE' indicator </td></tr><tr><td></td><td>`?GL_POLYGON_MODE'
-%% setting </td></tr><tr><td></td><td>`?GL_POLYGON_SMOOTH' flag </td></tr><tr><td></td><td>
-%% `?GL_POLYGON_STIPPLE' enable bit </td></tr><tr><td></td><td>`?GL_POLYGON_OFFSET_FILL'
-%%  flag </td></tr><tr><td></td><td>`?GL_POLYGON_OFFSET_LINE' flag </td></tr><tr><td></td>
-%% <td>`?GL_POLYGON_OFFSET_POINT' flag </td></tr><tr><td></td><td>`?GL_POLYGON_OFFSET_FACTOR'
-%% </td></tr><tr><td></td><td>`?GL_POLYGON_OFFSET_UNITS'</td></tr><tr><td>`?GL_POLYGON_STIPPLE_BIT'
-%% </td><td> Polygon stipple image </td></tr><tr><td>`?GL_SCISSOR_BIT'</td><td>`?GL_SCISSOR_TEST'
-%%  flag </td></tr><tr><td></td><td> Scissor box </td></tr><tr><td>`?GL_STENCIL_BUFFER_BIT'
-%% </td><td>`?GL_STENCIL_TEST' enable bit </td></tr><tr><td></td><td> Stencil function
-%% and reference value </td></tr><tr><td></td><td> Stencil value mask </td></tr><tr><td></td>
-%% <td> Stencil fail, pass, and depth buffer pass actions </td></tr><tr><td></td><td> Stencil
-%% buffer clear value </td></tr><tr><td></td><td> Stencil buffer writemask </td></tr><tr><td>
-%% `?GL_TEXTURE_BIT'</td><td> Enable bits for the four texture coordinates </td></tr><tr>
-%% <td></td><td> Border color for each texture image </td></tr><tr><td></td><td> Minification
-%% function for each texture image </td></tr><tr><td></td><td> Magnification function for
-%% each texture image </td></tr><tr><td></td><td> Texture coordinates and wrap mode for each
-%% texture image </td></tr><tr><td></td><td> Color and mode for each texture environment </td>
-%% </tr><tr><td></td><td> Enable bits `?GL_TEXTURE_GEN_'`x', `x' is S, T,
-%% R, and Q </td></tr><tr><td></td><td>`?GL_TEXTURE_GEN_MODE' setting for S, T, R, and
-%% Q </td></tr><tr><td></td><td> {@link gl:texGend/3}  plane equations for S, T, R, and Q </td></tr>
-%% <tr><td></td><td> Current texture bindings (for example, `?GL_TEXTURE_BINDING_2D') </td>
-%% </tr><tr><td>`?GL_TRANSFORM_BIT'</td><td> Coefficients of the six clipping planes </td>
-%% </tr><tr><td></td><td> Enable bits for the user-definable clipping planes </td></tr><tr><td>
-%% </td><td>`?GL_MATRIX_MODE' value </td></tr><tr><td></td><td>`?GL_NORMALIZE'
-%% flag </td></tr><tr><td></td><td>`?GL_RESCALE_NORMAL' flag </td></tr><tr><td>`?GL_VIEWPORT_BIT'
-%% </td><td> Depth range (near and far) </td></tr><tr><td></td><td> Viewport origin and extent
-%% </td></tr></tbody></table>
-%%
-%%  {@link gl:pushAttrib/1}  restores the values of the state variables saved with the last ``gl:pushAttrib''
-%%  command. Those not saved are left unchanged. 
-%%
-%%  It is an error to push attributes onto a full stack or to pop attributes off an empty
-%% stack. In either case, the error flag is set and no other change is made to GL state. 
-%%
-%%  Initially, the attribute stack is empty. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPushAttrib.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glPushAttrib.xml">external</a> documentation.
 -spec pushAttrib(Mask) -> 'ok' when Mask :: integer().
 pushAttrib(Mask) ->
   cast(5069, <<Mask:?GLbitfield>>).
@@ -2111,22 +717,7 @@ popAttrib() ->
 %%   of these constants together. The special mask `?GL_CLIENT_ALL_ATTRIB_BITS' can
 %% be used to save all stackable client state. 
 %%
-%%  The symbolic mask constants and their associated GL client state are as follows (the
-%% second column lists which attributes are saved): 
-%%
-%% `?GL_CLIENT_PIXEL_STORE_BIT' Pixel storage modes `?GL_CLIENT_VERTEX_ARRAY_BIT'
-%% Vertex arrays (and enables) 
-%%
-%%  {@link gl:pushClientAttrib/1}  restores the values of the client-state variables saved with
-%% the last ``gl:pushClientAttrib''. Those not saved are left unchanged. 
-%%
-%%  It is an error to push attributes onto a full client attribute stack or to pop attributes
-%% off an empty stack. In either case, the error flag is set, and no other change is made
-%% to GL state. 
-%%
-%%  Initially, the client attribute stack is empty. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPushClientAttrib.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glPushClientAttrib.xml">external</a> documentation.
 -spec pushClientAttrib(Mask) -> 'ok' when Mask :: integer().
 pushClientAttrib(Mask) ->
   cast(5071, <<Mask:?GLbitfield>>).
@@ -2142,37 +733,7 @@ popClientAttrib() ->
 %% ``gl:renderMode'' sets the rasterization mode. It takes one argument,  `Mode' , which
 %% can assume one of three predefined values: 
 %%
-%% `?GL_RENDER':  Render mode. Primitives are rasterized, producing pixel fragments,
-%% which are written into the frame buffer. This is the normal mode and also the default
-%% mode. 
-%%
-%% `?GL_SELECT':  Selection mode. No pixel fragments are produced, and no change to
-%% the frame buffer contents is made. Instead, a record of the names of primitives that would
-%% have been drawn if the render mode had been `?GL_RENDER' is returned in a select
-%% buffer, which must be created (see  {@link gl:selectBuffer/2} ) before selection mode is
-%% entered. 
-%%
-%% `?GL_FEEDBACK':  Feedback mode. No pixel fragments are produced, and no change to
-%% the frame buffer contents is made. Instead, the coordinates and attributes of vertices
-%% that would have been drawn if the render mode had been `?GL_RENDER' is returned in
-%% a feedback buffer, which must be created (see  {@link gl:feedbackBuffer/3} ) before feedback
-%% mode is entered. 
-%%
-%%  The return value of ``gl:renderMode'' is determined by the render mode at the time ``gl:renderMode''
-%%  is called, rather than by  `Mode' . The values returned for the three render modes
-%% are as follows: 
-%%
-%% `?GL_RENDER':  0. 
-%%
-%% `?GL_SELECT':  The number of hit records transferred to the select buffer. 
-%%
-%% `?GL_FEEDBACK':  The number of values (not vertices) transferred to the feedback
-%% buffer. 
-%%
-%%  See the  {@link gl:selectBuffer/2}  and  {@link gl:feedbackBuffer/3}  reference pages for more
-%% details concerning selection and feedback operation. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glRenderMode.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glRenderMode.xml">external</a> documentation.
 -spec renderMode(Mode) -> integer() when Mode :: enum().
 renderMode(Mode) ->
   call(5073, <<Mode:?GLenum>>).
@@ -2186,44 +747,7 @@ renderMode(Mode) ->
 %%  returns `?GL_NO_ERROR', there has been no detectable error since the last call to ``gl:getError''
 %% , or since the GL was initialized. 
 %%
-%%  To allow for distributed implementations, there may be several error flags. If any single
-%% error flag has recorded an error, the value of that flag is returned and that flag is
-%% reset to `?GL_NO_ERROR' when ``gl:getError'' is called. If more than one flag has
-%% recorded an error, ``gl:getError'' returns and clears an arbitrary error flag value.
-%% Thus, ``gl:getError'' should always be called in a loop, until it returns `?GL_NO_ERROR'
-%% , if all error flags are to be reset. 
-%%
-%%  Initially, all error flags are set to `?GL_NO_ERROR'. 
-%%
-%%  The following errors are currently defined: 
-%%
-%% `?GL_NO_ERROR':  No error has been recorded. The value of this symbolic constant
-%% is guaranteed to be 0. 
-%%
-%% `?GL_INVALID_ENUM':  An unacceptable value is specified for an enumerated argument.
-%% The offending command is ignored and has no other side effect than to set the error flag.
-%% 
-%%
-%% `?GL_INVALID_VALUE':  A numeric argument is out of range. The offending command is
-%% ignored and has no other side effect than to set the error flag. 
-%%
-%% `?GL_INVALID_OPERATION':  The specified operation is not allowed in the current state.
-%% The offending command is ignored and has no other side effect than to set the error flag.
-%% 
-%%
-%% `?GL_INVALID_FRAMEBUFFER_OPERATION':  The framebuffer object is not complete. The
-%% offending command is ignored and has no other side effect than to set the error flag. 
-%%
-%% `?GL_OUT_OF_MEMORY':  There is not enough memory left to execute the command. The
-%% state of the GL is undefined, except for the state of the error flags, after this error
-%% is recorded. 
-%%
-%%  When an error flag is set, results of a GL operation are undefined only if `?GL_OUT_OF_MEMORY'
-%%  has occurred. In all other cases, the command generating the error is ignored and has
-%% no effect on the GL state or frame buffer contents. If the generating command returns
-%% a value, it returns 0. If ``gl:getError'' itself generates an error, it returns 0. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetError.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetError.xhtml">external</a> documentation.
 -spec getError() -> enum().
 getError() ->
   call(5074, <<>>).
@@ -2233,40 +757,7 @@ getError() ->
 %% ``gl:getString'' returns a pointer to a static string describing some aspect of the
 %% current GL connection.  `Name'  can be one of the following: 
 %%
-%% `?GL_VENDOR':  Returns the company responsible for this GL implementation. This name
-%% does not change from release to release. 
-%%
-%% `?GL_RENDERER':  Returns the name of the renderer. This name is typically specific
-%% to a particular configuration of a hardware platform. It does not change from release
-%% to release. 
-%%
-%% `?GL_VERSION':  Returns a version or release number. 
-%%
-%% `?GL_SHADING_LANGUAGE_VERSION':  Returns a version or release number for the shading
-%% language. 
-%%
-%% ``gl:getStringi'' returns a pointer to a static string indexed by  `Index' .  `Name' 
-%%  can be one of the following: 
-%%
-%% `?GL_EXTENSIONS':  For ``gl:getStringi'' only, returns the extension string supported
-%% by the implementation at  `Index' . 
-%%
-%%  Strings `?GL_VENDOR' and `?GL_RENDERER' together uniquely specify a platform.
-%% They do not change from release to release and should be used by platform-recognition
-%% algorithms. 
-%%
-%%  The `?GL_VERSION' and `?GL_SHADING_LANGUAGE_VERSION' strings begin with a version
-%% number. The version number uses one of these forms: 
-%%
-%% `major_number.minor_number'`major_number.minor_number.release_number'
-%%
-%%  Vendor-specific information may follow the version number. Its format depends on the
-%% implementation, but a space always separates the version number and the vendor-specific
-%% information. 
-%%
-%%  All strings are null-terminated. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetString.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetString.xhtml">external</a> documentation.
 -spec getString(Name) -> string() when Name :: enum().
 getString(Name) ->
   call(5075, <<Name:?GLenum>>).
@@ -2277,7 +768,7 @@ getString(Name) ->
 %% are complete. Such effects include all changes to GL state, all changes to connection
 %% state, and all changes to the frame buffer contents. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFinish.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glFinish.xhtml">external</a> documentation.
 -spec finish() -> 'ok'.
 finish() ->
   cast(5076, <<>>).
@@ -2290,12 +781,7 @@ finish() ->
 %% the actual rendering engine. Though this execution may not be completed in any particular
 %% time period, it does complete in finite time. 
 %%
-%%  Because any GL program might be executed over a network, or on an accelerator that buffers
-%% commands, all programs should call ``gl:flush'' whenever they count on having all of
-%% their previously issued commands completed. For example, call ``gl:flush'' before waiting
-%% for user input that depends on the generated image. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFlush.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glFlush.xhtml">external</a> documentation.
 -spec flush() -> 'ok'.
 flush() ->
   cast(5077, <<>>).
@@ -2308,36 +794,7 @@ flush() ->
 %% indicating the desired behavior. The initial value for each  `Target'  is `?GL_DONT_CARE'
 %% .  `Mode'  can be one of the following: 
 %%
-%% `?GL_FASTEST':  The most efficient option should be chosen. 
-%%
-%% `?GL_NICEST':  The most correct, or highest quality, option should be chosen. 
-%%
-%% `?GL_DONT_CARE':  No preference. 
-%%
-%%  Though the implementation aspects that can be hinted are well defined, the interpretation
-%% of the hints depends on the implementation. The hint aspects that can be specified with  `Target' 
-%% , along with suggested semantics, are as follows: 
-%%
-%% `?GL_FRAGMENT_SHADER_DERIVATIVE_HINT':  Indicates the accuracy of the derivative
-%% calculation for the GL shading language fragment processing built-in functions: `?dFdx'
-%% , `?dFdy', and `?fwidth'. 
-%%
-%% `?GL_LINE_SMOOTH_HINT':  Indicates the sampling quality of antialiased lines. If
-%% a larger filter function is applied, hinting `?GL_NICEST' can result in more pixel
-%% fragments being generated during rasterization. 
-%%
-%% `?GL_POLYGON_SMOOTH_HINT':  Indicates the sampling quality of antialiased polygons.
-%% Hinting `?GL_NICEST' can result in more pixel fragments being generated during rasterization,
-%% if a larger filter function is applied. 
-%%
-%% `?GL_TEXTURE_COMPRESSION_HINT':  Indicates the quality and performance of the compressing
-%% texture images. Hinting `?GL_FASTEST' indicates that texture images should be compressed
-%% as quickly as possible, while `?GL_NICEST' indicates that texture images should be
-%% compressed with as little image quality loss as possible. `?GL_NICEST' should be
-%% selected if the texture is to be retrieved by  {@link gl:getCompressedTexImage/3}  for reuse.
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glHint.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glHint.xhtml">external</a> documentation.
 -spec hint(Target, Mode) -> 'ok' when Target :: enum(),Mode :: enum().
 hint(Target,Mode) ->
   cast(5078, <<Target:?GLenum,Mode:?GLenum>>).
@@ -2347,7 +804,7 @@ hint(Target,Mode) ->
 %% ``gl:clearDepth'' specifies the depth value used by  {@link gl:clear/1}  to clear the depth
 %% buffer. Values specified by ``gl:clearDepth'' are clamped to the range  [0 1]. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClearDepth.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glClearDepth.xhtml">external</a> documentation.
 -spec clearDepth(Depth) -> 'ok' when Depth :: clamp().
 clearDepth(Depth) ->
   cast(5079, <<Depth:?GLclampd>>).
@@ -2359,36 +816,7 @@ clearDepth(Depth) ->
 %% depth testing is enabled. (See  {@link gl:enable/1}  and  {@link gl:enable/1}  of `?GL_DEPTH_TEST'
 %% .) 
 %%
-%%  `Func'  specifies the conditions under which the pixel will be drawn. The comparison
-%% functions are as follows: 
-%%
-%% `?GL_NEVER':  Never passes. 
-%%
-%% `?GL_LESS':  Passes if the incoming depth value is less than the stored depth value.
-%% 
-%%
-%% `?GL_EQUAL':  Passes if the incoming depth value is equal to the stored depth value.
-%% 
-%%
-%% `?GL_LEQUAL':  Passes if the incoming depth value is less than or equal to the stored
-%% depth value. 
-%%
-%% `?GL_GREATER':  Passes if the incoming depth value is greater than the stored depth
-%% value. 
-%%
-%% `?GL_NOTEQUAL':  Passes if the incoming depth value is not equal to the stored depth
-%% value. 
-%%
-%% `?GL_GEQUAL':  Passes if the incoming depth value is greater than or equal to the
-%% stored depth value. 
-%%
-%% `?GL_ALWAYS':  Always passes. 
-%%
-%%  The initial value of  `Func'  is `?GL_LESS'. Initially, depth testing is disabled.
-%% If depth testing is disabled or if no depth buffer exists, it is as if the depth test
-%% always passes. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDepthFunc.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDepthFunc.xhtml">external</a> documentation.
 -spec depthFunc(Func) -> 'ok' when Func :: enum().
 depthFunc(Func) ->
   cast(5080, <<Func:?GLenum>>).
@@ -2399,7 +827,7 @@ depthFunc(Func) ->
 %%  is `?GL_FALSE', depth buffer writing is disabled. Otherwise, it is enabled. Initially,
 %% depth buffer writing is enabled. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDepthMask.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDepthMask.xhtml">external</a> documentation.
 -spec depthMask(Flag) -> 'ok' when Flag :: 0|1.
 depthMask(Flag) ->
   cast(5081, <<Flag:?GLboolean>>).
@@ -2413,10 +841,7 @@ depthMask(Flag) ->
 %% as though they range from 0 through 1 (like color components). Thus, the values accepted
 %% by ``gl:depthRange'' are both clamped to this range before they are accepted. 
 %%
-%%  The setting of (0,1) maps the near plane to 0 and the far plane to 1. With this mapping,
-%% the depth buffer range is fully utilized. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDepthRange.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDepthRange.xhtml">external</a> documentation.
 -spec depthRange(Near_val, Far_val) -> 'ok' when Near_val :: clamp(),Far_val :: clamp().
 depthRange(Near_val,Far_val) ->
   cast(5082, <<Near_val:?GLclampd,Far_val:?GLclampd>>).
@@ -2426,9 +851,7 @@ depthRange(Near_val,Far_val) ->
 %% ``gl:clearAccum'' specifies the red, green, blue, and alpha values used by  {@link gl:clear/1} 
 %%  to clear the accumulation buffer. 
 %%
-%%  Values specified by ``gl:clearAccum'' are clamped to the range  [-1 1]. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClearAccum.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glClearAccum.xml">external</a> documentation.
 -spec clearAccum(Red, Green, Blue, Alpha) -> 'ok' when Red :: float(),Green :: float(),Blue :: float(),Alpha :: float().
 clearAccum(Red,Green,Blue,Alpha) ->
   cast(5083, <<Red:?GLfloat,Green:?GLfloat,Blue:?GLfloat,Alpha:?GLfloat>>).
@@ -2441,53 +864,7 @@ clearAccum(Red,Green,Blue,Alpha) ->
 %% and polygons), motion blur, and depth of field can be created by accumulating images generated
 %% with different transformation matrices. 
 %%
-%%  Each pixel in the accumulation buffer consists of red, green, blue, and alpha values.
-%% The number of bits per component in the accumulation buffer depends on the implementation.
-%% You can examine this number by calling  {@link gl:getBooleanv/1}  four times, with arguments
-%% `?GL_ACCUM_RED_BITS', `?GL_ACCUM_GREEN_BITS', `?GL_ACCUM_BLUE_BITS', and `?GL_ACCUM_ALPHA_BITS'
-%% . Regardless of the number of bits per component, the range of values stored by each component
-%% is  [-1 1]. The accumulation buffer pixels are mapped one-to-one with frame buffer pixels. 
-%%
-%% ``gl:accum'' operates on the accumulation buffer. The first argument,  `Op' , is
-%% a symbolic constant that selects an accumulation buffer operation. The second argument,  `Value' 
-%% , is a floating-point value to be used in that operation. Five operations are specified: `?GL_ACCUM'
-%% , `?GL_LOAD', `?GL_ADD', `?GL_MULT', and `?GL_RETURN'. 
-%%
-%%  All accumulation buffer operations are limited to the area of the current scissor box
-%% and applied identically to the red, green, blue, and alpha components of each pixel. If
-%% a ``gl:accum'' operation results in a value outside the range  [-1 1], the contents of an
-%% accumulation buffer pixel component are undefined. 
-%%
-%%  The operations are as follows: 
-%%
-%% `?GL_ACCUM':  Obtains R, G, B, and A values from the buffer currently selected for
-%% reading (see  {@link gl:readBuffer/1} ). Each component value is divided by   2 n-1, where  
-%% n is the number of bits allocated to each color component in the currently selected buffer.
-%% The result is a floating-point value in the range  [0 1], which is multiplied by  `Value' 
-%% and added to the corresponding pixel component in the accumulation buffer, thereby updating
-%% the accumulation buffer. 
-%%
-%% `?GL_LOAD':  Similar to `?GL_ACCUM', except that the current value in the accumulation
-%% buffer is not used in the calculation of the new value. That is, the R, G, B, and A values
-%% from the currently selected buffer are divided by   2 n-1, multiplied by  `Value' ,
-%% and then stored in the corresponding accumulation buffer cell, overwriting the current
-%% value. 
-%%
-%% `?GL_ADD':  Adds  `Value'  to each R, G, B, and A in the accumulation buffer. 
-%%
-%% `?GL_MULT':  Multiplies each R, G, B, and A in the accumulation buffer by  `Value' 
-%%  and returns the scaled component to its corresponding accumulation buffer location. 
-%%
-%% `?GL_RETURN':  Transfers accumulation buffer values to the color buffer or buffers
-%% currently selected for writing. Each R, G, B, and A component is multiplied by  `Value' 
-%% , then multiplied by   2 n-1, clamped to the range  [0 2 n-1], and stored in the corresponding
-%% display buffer cell. The only fragment operations that are applied to this transfer are
-%% pixel ownership, scissor, dithering, and color writemasks. 
-%%
-%%  To clear the accumulation buffer, call  {@link gl:clearAccum/4}  with R, G, B, and A values
-%% to set it to, then call  {@link gl:clear/1}  with the accumulation buffer enabled. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glAccum.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glAccum.xml">external</a> documentation.
 -spec accum(Op, Value) -> 'ok' when Op :: enum(),Value :: float().
 accum(Op,Value) ->
   cast(5084, <<Op:?GLenum,Value:?GLfloat>>).
@@ -2497,20 +874,7 @@ accum(Op,Value) ->
 %% ``gl:matrixMode'' sets the current matrix mode.  `Mode'  can assume one of four values:
 %% 
 %%
-%% `?GL_MODELVIEW':  Applies subsequent matrix operations to the modelview matrix stack.
-%% 
-%%
-%% `?GL_PROJECTION':  Applies subsequent matrix operations to the projection matrix
-%% stack. 
-%%
-%% `?GL_TEXTURE':  Applies subsequent matrix operations to the texture matrix stack. 
-%%
-%% `?GL_COLOR':  Applies subsequent matrix operations to the color matrix stack. 
-%%
-%%  To find out which matrix stack is currently the target of all matrix operations, call  {@link gl:getBooleanv/1} 
-%%  with argument `?GL_MATRIX_MODE'. The initial value is `?GL_MODELVIEW'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMatrixMode.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glMatrixMode.xml">external</a> documentation.
 -spec matrixMode(Mode) -> 'ok' when Mode :: enum().
 matrixMode(Mode) ->
   cast(5085, <<Mode:?GLenum>>).
@@ -2522,20 +886,7 @@ matrixMode(Mode) ->
 %% the current matrix, as if  {@link gl:multMatrixd/1}  were called with the following matrix
 %% as its argument: 
 %%
-%% ((2/(right-left)) 0 0(t x) 0(2/(top-bottom)) 0(t y) 0 0(-2/(farVal-nearVal))(t z) 0 0 0 1)
-%%
-%%  where  t x=-((right+left)/(right-left)) t y=-((top+bottom)/(top-bottom)) t z=-((farVal+nearVal)/(farVal-nearVal))
-%%
-%%  Typically, the matrix mode is `?GL_PROJECTION', and (left bottom-nearVal) and  (right top-nearVal) specify the points on
-%% the near clipping plane that are mapped to the lower left and upper right corners of the
-%% window, respectively, assuming that the eye is located at (0, 0, 0). -farVal specifies
-%% the location of the far clipping plane. Both  `NearVal'  and  `FarVal'  can be either
-%% positive or negative. 
-%%
-%%  Use  {@link gl:pushMatrix/0}  and  {@link gl:pushMatrix/0}  to save and restore the current
-%% matrix stack. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glOrtho.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glOrtho.xml">external</a> documentation.
 -spec ortho(Left, Right, Bottom, Top, Near_val, Far_val) -> 'ok' when Left :: float(),Right :: float(),Bottom :: float(),Top :: float(),Near_val :: float(),Far_val :: float().
 ortho(Left,Right,Bottom,Top,Near_val,Far_val) ->
   cast(5086, <<Left:?GLdouble,Right:?GLdouble,Bottom:?GLdouble,Top:?GLdouble,Near_val:?GLdouble,Far_val:?GLdouble>>).
@@ -2547,25 +898,7 @@ ortho(Left,Right,Bottom,Top,Near_val,Far_val) ->
 %% replaces the current matrix, as if  {@link gl:multMatrixd/1}  were called with the following
 %% matrix as its argument: 
 %%
-%% [((2  nearVal)/(right-left)) 0 A 0 0((2  nearVal)/(top-bottom)) B 0 0 0 C D 0 0 -1 0]
-%%
-%%  A=(right+left)/(right-left)
-%%
-%%  B=(top+bottom)/(top-bottom)
-%%
-%%  C=-((farVal+nearVal)/(farVal-nearVal))
-%%
-%%  D=-((2  farVal  nearVal)/(farVal-nearVal))
-%%
-%%  Typically, the matrix mode is `?GL_PROJECTION', and (left bottom-nearVal) and  (right top-nearVal) specify the points on
-%% the near clipping plane that are mapped to the lower left and upper right corners of the
-%% window, assuming that the eye is located at (0, 0, 0). -farVal specifies the location
-%% of the far clipping plane. Both  `NearVal'  and  `FarVal'  must be positive. 
-%%
-%%  Use  {@link gl:pushMatrix/0}  and  {@link gl:pushMatrix/0}  to save and restore the current
-%% matrix stack. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFrustum.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glFrustum.xml">external</a> documentation.
 -spec frustum(Left, Right, Bottom, Top, Near_val, Far_val) -> 'ok' when Left :: float(),Right :: float(),Bottom :: float(),Top :: float(),Near_val :: float(),Far_val :: float().
 frustum(Left,Right,Bottom,Top,Near_val,Far_val) ->
   cast(5087, <<Left:?GLdouble,Right:?GLdouble,Bottom:?GLdouble,Top:?GLdouble,Near_val:?GLdouble,Far_val:?GLdouble>>).
@@ -2576,14 +909,7 @@ frustum(Left,Right,Bottom,Top,Near_val,Far_val) ->
 %% coordinates to window coordinates. Let  (x nd y nd) be normalized device coordinates. Then the window
 %% coordinates  (x w y w) are computed as follows: 
 %%
-%%  x w=(x nd+1) (width/2)+x
-%%
-%%  y w=(y nd+1) (height/2)+y
-%%
-%%  Viewport width and height are silently clamped to a range that depends on the implementation.
-%% To query this range, call  {@link gl:getBooleanv/1}  with argument `?GL_MAX_VIEWPORT_DIMS'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glViewport.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glViewport.xhtml">external</a> documentation.
 -spec viewport(X, Y, Width, Height) -> 'ok' when X :: integer(),Y :: integer(),Width :: integer(),Height :: integer().
 viewport(X,Y,Width,Height) ->
   cast(5088, <<X:?GLint,Y:?GLint,Width:?GLsizei,Height:?GLsizei>>).
@@ -2595,20 +921,7 @@ viewport(X,Y,Width,Height) ->
 %% , and `?GL_TEXTURE', the depth is at least 2. The current matrix in any mode is the
 %% matrix on the top of the stack for that mode. 
 %%
-%% ``gl:pushMatrix'' pushes the current matrix stack down by one, duplicating the current
-%% matrix. That is, after a ``gl:pushMatrix'' call, the matrix on top of the stack is identical
-%% to the one below it. 
-%%
-%%  {@link gl:pushMatrix/0}  pops the current matrix stack, replacing the current matrix with
-%% the one below it on the stack. 
-%%
-%%  Initially, each of the stacks contains one matrix, an identity matrix. 
-%%
-%%  It is an error to push a full matrix stack or to pop a matrix stack that contains only
-%% a single matrix. In either case, the error flag is set and no other change is made to
-%% GL state. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPushMatrix.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glPushMatrix.xml">external</a> documentation.
 -spec pushMatrix() -> 'ok'.
 pushMatrix() ->
   cast(5089, <<>>).
@@ -2624,11 +937,7 @@ popMatrix() ->
 %% ``gl:loadIdentity'' replaces the current matrix with the identity matrix. It is semantically
 %% equivalent to calling  {@link gl:loadMatrixd/1}  with the identity matrix 
 %%
-%% ((1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1))
-%%
-%%  but in some cases it is more efficient. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLoadIdentity.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glLoadIdentity.xml">external</a> documentation.
 -spec loadIdentity() -> 'ok'.
 loadIdentity() ->
   cast(5091, <<>>).
@@ -2639,16 +948,7 @@ loadIdentity() ->
 %% by  `M' . The current matrix is the projection matrix, modelview matrix, or texture
 %% matrix, depending on the current matrix mode (see  {@link gl:matrixMode/1} ). 
 %%
-%%  The current matrix, M, defines a transformation of coordinates. For instance, assume
-%% M refers to the modelview matrix. If   v=(v[0] v[1] v[2] v[3]) is the set of object coordinates of a vertex,
-%% and  `M'  points to an array of   16 single- or double-precision floating-point values
-%%   m={m[0] m[1] ... m[15]}, then the modelview transformation   M(v) does the following: 
-%%
-%%  M(v)=(m[0] m[4] m[8] m[12] m[1] m[5] m[9] m[13] m[2] m[6] m[10] m[14] m[3] m[7] m[11] m[15])×(v[0] v[1] v[2] v[3])
-%%
-%%  Projection and texture transformations are similarly defined. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLoadMatrix.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glLoadMatrix.xml">external</a> documentation.
 -spec loadMatrixd(M) -> 'ok' when M :: matrix().
 loadMatrixd({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16}) ->
   cast(5092, <<M1:?GLdouble,M2:?GLdouble,M3:?GLdouble,M4:?GLdouble,M5:?GLdouble,M6:?GLdouble,M7:?GLdouble,M8:?GLdouble,M9:?GLdouble,M10:?GLdouble,M11:?GLdouble,M12:?GLdouble,M13:?GLdouble,M14:?GLdouble,M15:?GLdouble,M16:?GLdouble>>);
@@ -2668,10 +968,7 @@ loadMatrixf({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12}) ->
 %% ``gl:multMatrix'' multiplies the current matrix with the one specified using  `M' ,
 %% and replaces the current matrix with the product. 
 %%
-%%  The current matrix is determined by the current matrix mode (see  {@link gl:matrixMode/1} ).
-%% It is either the projection matrix, modelview matrix, or the texture matrix. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMultMatrix.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glMultMatrix.xml">external</a> documentation.
 -spec multMatrixd(M) -> 'ok' when M :: matrix().
 multMatrixd({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16}) ->
   cast(5094, <<M1:?GLdouble,M2:?GLdouble,M3:?GLdouble,M4:?GLdouble,M5:?GLdouble,M6:?GLdouble,M7:?GLdouble,M8:?GLdouble,M9:?GLdouble,M10:?GLdouble,M11:?GLdouble,M12:?GLdouble,M13:?GLdouble,M14:?GLdouble,M15:?GLdouble,M16:?GLdouble>>);
@@ -2693,16 +990,7 @@ multMatrixf({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12}) ->
 %% replacing the current matrix, as if  {@link gl:multMatrixd/1}  were called with the following
 %% matrix as its argument: 
 %%
-%% (x 2(1-c)+c x  y(1-c)-z  s x  z(1-c)+y  s 0 y  x(1-c)+z  s y 2(1-c)+c y  z(1-c)-x  s 0 x  z(1-c)-y  s y  z(1-c)+x  s z 2(1-c)+c 0 0 0 0
-%% 1)
-%%
-%%  Where   c=cos(angle),   s=sin(angle), and ||(x y z)||=1 (if not, the GL will normalize this vector). 
-%%
-%%  If the matrix mode is either `?GL_MODELVIEW' or `?GL_PROJECTION', all objects
-%% drawn after ``gl:rotate'' is called are rotated. Use  {@link gl:pushMatrix/0}  and  {@link gl:pushMatrix/0} 
-%%  to save and restore the unrotated coordinate system. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glRotate.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glRotate.xml">external</a> documentation.
 -spec rotated(Angle, X, Y, Z) -> 'ok' when Angle :: float(),X :: float(),Y :: float(),Z :: float().
 rotated(Angle,X,Y,Z) ->
   cast(5096, <<Angle:?GLdouble,X:?GLdouble,Y:?GLdouble,Z:?GLdouble>>).
@@ -2719,19 +1007,7 @@ rotatef(Angle,X,Y,Z) ->
 %% axes. The three parameters indicate the desired scale factor along each of the three axes.
 %% 
 %%
-%%  The current matrix (see  {@link gl:matrixMode/1} ) is multiplied by this scale matrix, and
-%% the product replaces the current matrix as if  {@link gl:multMatrixd/1}  were called with
-%% the following matrix as its argument: 
-%%
-%% (x 0 0 0 0 y 0 0 0 0 z 0 0 0 0 1)
-%%
-%%  If the matrix mode is either `?GL_MODELVIEW' or `?GL_PROJECTION', all objects
-%% drawn after ``gl:scale'' is called are scaled. 
-%%
-%%  Use  {@link gl:pushMatrix/0}  and  {@link gl:pushMatrix/0}  to save and restore the unscaled
-%% coordinate system. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glScale.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glScale.xml">external</a> documentation.
 -spec scaled(X, Y, Z) -> 'ok' when X :: float(),Y :: float(),Z :: float().
 scaled(X,Y,Z) ->
   cast(5098, <<X:?GLdouble,Y:?GLdouble,Z:?GLdouble>>).
@@ -2748,15 +1024,7 @@ scalef(X,Y,Z) ->
 %% ) is multiplied by this translation matrix, with the product replacing the current matrix,
 %% as if  {@link gl:multMatrixd/1}  were called with the following matrix for its argument: 
 %%
-%% (1 0 0 x 0 1 0 y 0 0 1 z 0 0 0 1)
-%%
-%%  If the matrix mode is either `?GL_MODELVIEW' or `?GL_PROJECTION', all objects
-%% drawn after a call to ``gl:translate'' are translated. 
-%%
-%%  Use  {@link gl:pushMatrix/0}  and  {@link gl:pushMatrix/0}  to save and restore the untranslated
-%% coordinate system. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTranslate.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glTranslate.xml">external</a> documentation.
 -spec translated(X, Y, Z) -> 'ok' when X :: float(),Y :: float(),Z :: float().
 translated(X,Y,Z) ->
   cast(5100, <<X:?GLdouble,Y:?GLdouble,Z:?GLdouble>>).
@@ -2772,10 +1040,7 @@ translatef(X,Y,Z) ->
 %% ``gl:isList'' returns `?GL_TRUE' if  `List'  is the name of a display list and
 %% returns `?GL_FALSE' if it is not, or if an error occurs. 
 %%
-%%  A name returned by  {@link gl:genLists/1} , but not yet associated with a display list by
-%% calling  {@link gl:newList/2} , is not the name of a display list. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsList.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glIsList.xml">external</a> documentation.
 -spec isList(List) -> 0|1 when List :: integer().
 isList(List) ->
   call(5102, <<List:?GLuint>>).
@@ -2787,11 +1052,7 @@ isList(List) ->
 %% display lists to delete. All display lists   d with   list&lt;= d&lt;= list+range-1 are
 %% deleted. 
 %%
-%%  All storage locations allocated to the specified display lists are freed, and the names
-%% are available for reuse at a later time. Names within the range that do not have an associated
-%% display list are ignored. If  `Range'  is 0, nothing happens. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteLists.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glDeleteLists.xml">external</a> documentation.
 -spec deleteLists(List, Range) -> 'ok' when List :: integer(),Range :: integer().
 deleteLists(List,Range) ->
   cast(5103, <<List:?GLuint,Range:?GLsizei>>).
@@ -2804,7 +1065,7 @@ deleteLists(List,Range) ->
 %% available, or if any error is generated, no display lists are generated, and 0 is returned.
 %% 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenLists.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGenLists.xml">external</a> documentation.
 -spec genLists(Range) -> integer() when Range :: integer().
 genLists(Range) ->
   call(5104, <<Range:?GLsizei>>).
@@ -2815,53 +1076,14 @@ genLists(Range) ->
 %% Display lists are created with ``gl:newList''. All subsequent commands are placed in
 %% the display list, in the order issued, until  {@link gl:endList/0}  is called. 
 %%
-%% ``gl:newList'' has two arguments. The first argument,  `List' , is a positive integer
-%% that becomes the unique name for the display list. Names can be created and reserved with
-%%  {@link gl:genLists/1}  and tested for uniqueness with  {@link gl:isList/1} . The second argument,
-%%  `Mode' , is a symbolic constant that can assume one of two values: 
-%%
-%% `?GL_COMPILE':  Commands are merely compiled. 
-%%
-%% `?GL_COMPILE_AND_EXECUTE':  Commands are executed as they are compiled into the display
-%% list. 
-%%
-%%  Certain commands are not compiled into the display list but are executed immediately,
-%% regardless of the display-list mode. These commands are  {@link gl:areTexturesResident/1} ,  {@link gl:colorPointer/4} 
-%% ,  {@link gl:deleteLists/2} ,  {@link gl:deleteTextures/1} ,  {@link gl:enableClientState/1} ,  {@link gl:edgeFlagPointer/2} 
-%% ,  {@link gl:enableClientState/1} ,  {@link gl:feedbackBuffer/3} ,  {@link gl:finish/0} ,  {@link gl:flush/0} 
-%% ,  {@link gl:genLists/1} ,  {@link gl:genTextures/1} ,  {@link gl:indexPointer/3} ,  {@link gl:interleavedArrays/3} 
-%% ,  {@link gl:isEnabled/1} ,  {@link gl:isList/1} ,  {@link gl:isTexture/1} ,  {@link gl:normalPointer/3} 
-%% ,  {@link gl:pushClientAttrib/1} ,  {@link gl:pixelStoref/2} ,  {@link gl:pushClientAttrib/1} ,  {@link gl:readPixels/7} 
-%% ,  {@link gl:renderMode/1} ,  {@link gl:selectBuffer/2} ,  {@link gl:texCoordPointer/4} ,  {@link gl:vertexPointer/4} 
-%% , and all of the  {@link gl:getBooleanv/1}  commands. 
-%%
-%%  Similarly,  {@link gl:texImage1D/8} ,  {@link gl:texImage2D/9} , and  {@link gl:texImage3D/10} 
-%% are executed immediately and not compiled into the display list when their first argument
-%% is `?GL_PROXY_TEXTURE_1D', `?GL_PROXY_TEXTURE_1D', or `?GL_PROXY_TEXTURE_3D'
-%% , respectively. 
-%%
-%%  When the ARB_imaging extension is supported,  {@link gl:histogram/4}  executes immediately
-%% when its argument is `?GL_PROXY_HISTOGRAM'. Similarly,  {@link gl:colorTable/6}  executes
-%% immediately when its first argument is `?GL_PROXY_COLOR_TABLE', `?GL_PROXY_POST_CONVOLUTION_COLOR_TABLE'
-%% , or `?GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE'. 
-%%
-%%  For OpenGL versions 1.3 and greater, or when the ARB_multitexture extension is supported,
-%%  {@link gl:clientActiveTexture/1}  is not compiled into display lists, but executed immediately.
-%% 
-%%
-%%  When  {@link gl:endList/0}  is encountered, the display-list definition is completed by
-%% associating the list with the unique name  `List'  (specified in the ``gl:newList''
-%% command). If a display list with name  `List'  already exists, it is replaced only
-%% when  {@link gl:endList/0}  is called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glNewList.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glNewList.xml">external</a> documentation.
 -spec newList(List, Mode) -> 'ok' when List :: integer(),Mode :: enum().
 newList(List,Mode) ->
   cast(5105, <<List:?GLuint,Mode:?GLenum>>).
 
 %% @doc glBeginList
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBeginList.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec endList() -> 'ok'.
 endList() ->
   cast(5106, <<>>).
@@ -2873,17 +1095,7 @@ endList() ->
 %% list. If  `List'  has not been defined as a display list, ``gl:callList'' is ignored.
 %% 
 %%
-%% ``gl:callList'' can appear inside a display list. To avoid the possibility of infinite
-%% recursion resulting from display lists calling one another, a limit is placed on the nesting
-%% level of display lists during display-list execution. This limit is at least 64, and it
-%% depends on the implementation. 
-%%
-%%  GL state is not saved and restored across a call to ``gl:callList''. Thus, changes
-%% made to GL state during the execution of a display list remain after execution of the
-%% display list is completed. Use  {@link gl:pushAttrib/1} ,  {@link gl:pushAttrib/1} ,  {@link gl:pushMatrix/0} 
-%% , and  {@link gl:pushMatrix/0}  to preserve GL state across ``gl:callList'' calls. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCallList.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glCallList.xml">external</a> documentation.
 -spec callList(List) -> 'ok' when List :: integer().
 callList(List) ->
   cast(5107, <<List:?GLuint>>).
@@ -2895,62 +1107,7 @@ callList(List) ->
 %% just as if they were called without using a display list. Names of display lists that
 %% have not been defined are ignored. 
 %%
-%% ``gl:callLists'' provides an efficient means for executing more than one display list.  `Type' 
-%%  allows lists with various name formats to be accepted. The formats are as follows: 
-%%
-%% `?GL_BYTE':  `Lists'  is treated as an array of signed bytes, each in the range  
-%% -128 through 127. 
-%%
-%% `?GL_UNSIGNED_BYTE':  `Lists'  is treated as an array of unsigned bytes, each
-%% in the range 0 through 255. 
-%%
-%% `?GL_SHORT':  `Lists'  is treated as an array of signed two-byte integers, each
-%% in the range   -32768 through 32767. 
-%%
-%% `?GL_UNSIGNED_SHORT':  `Lists'  is treated as an array of unsigned two-byte integers,
-%% each in the range 0 through 65535. 
-%%
-%% `?GL_INT':  `Lists'  is treated as an array of signed four-byte integers. 
-%%
-%% `?GL_UNSIGNED_INT':  `Lists'  is treated as an array of unsigned four-byte integers.
-%% 
-%%
-%% `?GL_FLOAT':  `Lists'  is treated as an array of four-byte floating-point values.
-%% 
-%%
-%% `?GL_2_BYTES':  `Lists'  is treated as an array of unsigned bytes. Each pair of
-%% bytes specifies a single display-list name. The value of the pair is computed as 256 times
-%% the unsigned value of the first byte plus the unsigned value of the second byte. 
-%%
-%% `?GL_3_BYTES':  `Lists'  is treated as an array of unsigned bytes. Each triplet
-%% of bytes specifies a single display-list name. The value of the triplet is computed as
-%% 65536 times the unsigned value of the first byte, plus 256 times the unsigned value of
-%% the second byte, plus the unsigned value of the third byte. 
-%%
-%% `?GL_4_BYTES':  `Lists'  is treated as an array of unsigned bytes. Each quadruplet
-%% of bytes specifies a single display-list name. The value of the quadruplet is computed
-%% as 16777216 times the unsigned value of the first byte, plus 65536 times the unsigned
-%% value of the second byte, plus 256 times the unsigned value of the third byte, plus the
-%% unsigned value of the fourth byte. 
-%%
-%%  The list of display-list names is not null-terminated. Rather,  `N'  specifies how
-%% many names are to be taken from  `Lists' . 
-%%
-%%  An additional level of indirection is made available with the  {@link gl:listBase/1}  command,
-%% which specifies an unsigned offset that is added to each display-list name specified in  `Lists' 
-%%  before that display list is executed. 
-%%
-%% ``gl:callLists'' can appear inside a display list. To avoid the possibility of infinite
-%% recursion resulting from display lists calling one another, a limit is placed on the nesting
-%% level of display lists during display-list execution. This limit must be at least 64,
-%% and it depends on the implementation. 
-%%
-%%  GL state is not saved and restored across a call to ``gl:callLists''. Thus, changes
-%% made to GL state during the execution of the display lists remain after execution is completed.
-%% Use  {@link gl:pushAttrib/1} ,  {@link gl:pushAttrib/1} ,  {@link gl:pushMatrix/0} , and  {@link gl:pushMatrix/0} 
-%%  to preserve GL state across ``gl:callLists'' calls. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCallLists.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glCallLists.xml">external</a> documentation.
 -spec callLists(Lists) -> 'ok' when Lists :: [integer()].
 callLists(Lists) ->
   ListsLen = length(Lists),
@@ -2965,7 +1122,7 @@ callLists(Lists) ->
 %% by adding  `Base'  to each offset. Names that reference valid display lists are executed;
 %% the others are ignored. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glListBase.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glListBase.xml">external</a> documentation.
 -spec listBase(Base) -> 'ok' when Base :: integer().
 listBase(Base) ->
   cast(5109, <<Base:?GLuint>>).
@@ -2977,66 +1134,7 @@ listBase(Base) ->
 %% ten ways the vertices are interpreted. Taking   n as an integer count starting at one,
 %% and   N as the total number of vertices specified, the interpretations are as follows: 
 %%
-%% `?GL_POINTS':  Treats each vertex as a single point. Vertex   n defines point   n. 
-%% N points are drawn. 
-%%
-%% `?GL_LINES':  Treats each pair of vertices as an independent line segment. Vertices
-%%   2  n-1 and   2  n define line   n.  N/2 lines are drawn. 
-%%
-%% `?GL_LINE_STRIP':  Draws a connected group of line segments from the first vertex
-%% to the last. Vertices   n and   n+1 define line   n.  N-1 lines are drawn. 
-%%
-%% `?GL_LINE_LOOP':  Draws a connected group of line segments from the first vertex
-%% to the last, then back to the first. Vertices   n and   n+1 define line   n. The last
-%% line, however, is defined by vertices   N and   1.  N lines are drawn. 
-%%
-%% `?GL_TRIANGLES':  Treats each triplet of vertices as an independent triangle. Vertices
-%%   3  n-2,  3  n-1, and   3  n define triangle   n.  N/3 triangles are drawn. 
-%%
-%% `?GL_TRIANGLE_STRIP':  Draws a connected group of triangles. One triangle is defined
-%% for each vertex presented after the first two vertices. For odd   n, vertices  n,  n+1,
-%% and   n+2 define triangle   n. For even   n, vertices  n+1,  n, and   n+2 define triangle
-%%   n.  N-2 triangles are drawn. 
-%%
-%% `?GL_TRIANGLE_FAN':  Draws a connected group of triangles. One triangle is defined
-%% for each vertex presented after the first two vertices. Vertices   1,  n+1, and   n+2
-%% define triangle   n.  N-2 triangles are drawn. 
-%%
-%% `?GL_QUADS':  Treats each group of four vertices as an independent quadrilateral.
-%% Vertices   4  n-3,  4  n-2,  4  n-1, and   4  n define quadrilateral   n.  N/4 quadrilaterals
-%% are drawn. 
-%%
-%% `?GL_QUAD_STRIP':  Draws a connected group of quadrilaterals. One quadrilateral is
-%% defined for each pair of vertices presented after the first pair. Vertices   2  n-1,  2 
-%% n,  2  n+2, and   2  n+1 define quadrilateral   n.  N/2-1 quadrilaterals are drawn. Note
-%% that the order in which vertices are used to construct a quadrilateral from strip data
-%% is different from that used with independent data. 
-%%
-%% `?GL_POLYGON':  Draws a single, convex polygon. Vertices   1 through   N define this
-%% polygon. 
-%%
-%%  Only a subset of GL commands can be used between ``gl:'begin''' and  {@link gl:'begin'/1} .
-%% The commands are  {@link gl:vertex2d/2} ,  {@link gl:color3b/3} ,  {@link gl:secondaryColor3b/3} ,  {@link gl:indexd/1} 
-%% ,  {@link gl:normal3b/3} ,  {@link gl:fogCoordf/1} ,  {@link gl:texCoord1d/1} ,  {@link gl:multiTexCoord1d/2} 
-%% ,  {@link gl:vertexAttrib1d/2} ,  {@link gl:evalCoord1d/1} ,  {@link gl:evalPoint1/1} ,  {@link gl:arrayElement/1} 
-%% ,  {@link gl:materialf/3} , and  {@link gl:edgeFlag/1} . Also, it is acceptable to use  {@link gl:callList/1} 
-%%  or  {@link gl:callLists/1}  to execute display lists that include only the preceding commands.
-%% If any other GL command is executed between ``gl:'begin''' and  {@link gl:'begin'/1} , the error
-%% flag is set and the command is ignored. 
-%%
-%%  Regardless of the value chosen for  `Mode' , there is no limit to the number of vertices
-%% that can be defined between ``gl:'begin''' and  {@link gl:'begin'/1} . Lines, triangles, quadrilaterals,
-%% and polygons that are incompletely specified are not drawn. Incomplete specification results
-%% when either too few vertices are provided to specify even a single primitive or when an
-%% incorrect multiple of vertices is specified. The incomplete primitive is ignored; the
-%% rest are drawn. 
-%%
-%%  The minimum specification of vertices for each primitive is as follows: 1 for a point,
-%% 2 for a line, 3 for a triangle, 4 for a quadrilateral, and 3 for a polygon. Modes that
-%% require a certain multiple of vertices are `?GL_LINES' (2), `?GL_TRIANGLES'
-%% (3), `?GL_QUADS' (4), and `?GL_QUAD_STRIP' (2). 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBegin.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glBegin.xml">external</a> documentation.
 -spec 'begin'(Mode) -> 'ok' when Mode :: enum().
 'begin'(Mode) ->
   cast(5110, <<Mode:?GLenum>>).
@@ -3053,10 +1151,7 @@ listBase(Base) ->
 %% point, line, and polygon vertices. The current color, normal, texture coordinates, and
 %% fog coordinate are associated with the vertex when ``gl:vertex'' is called. 
 %%
-%%  When only   x and   y are specified,   z defaults to 0 and  w defaults to 1. When   x, 
-%% y, and   z are specified,   w defaults to 1. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertex.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glVertex.xml">external</a> documentation.
 -spec vertex2d(X, Y) -> 'ok' when X :: float(),Y :: float().
 vertex2d(X,Y) ->
   cast(5112, <<X:?GLdouble,Y:?GLdouble>>).
@@ -3182,16 +1277,7 @@ vertex4sv({X,Y,Z,W}) ->  vertex4s(X,Y,Z,W).
 %% mapping that maps the most positive representable integer value to 1.0 and the most negative
 %% representable integer value to   -1.0. 
 %%
-%%  Normals specified with ``gl:normal'' need not have unit length. If `?GL_NORMALIZE'
-%% is enabled, then normals of any length specified with ``gl:normal'' are normalized after
-%% transformation. If `?GL_RESCALE_NORMAL' is enabled, normals are scaled by a scaling
-%% factor derived from the modelview matrix. `?GL_RESCALE_NORMAL' requires that the
-%% originally specified normals were of unit length, and that the modelview matrix contain
-%% only uniform scales for proper results. To enable and disable normalization, call  {@link gl:enable/1} 
-%%  and  {@link gl:enable/1}  with either `?GL_NORMALIZE' or `?GL_RESCALE_NORMAL'.
-%% Normalization is initially disabled. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glNormal.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glNormal.xml">external</a> documentation.
 -spec normal3b(Nx, Ny, Nz) -> 'ok' when Nx :: integer(),Ny :: integer(),Nz :: integer().
 normal3b(Nx,Ny,Nz) ->
   cast(5124, <<Nx:?GLbyte,Ny:?GLbyte,Nz:?GLbyte>>).
@@ -3245,15 +1331,7 @@ normal3sv({Nx,Ny,Nz}) ->  normal3s(Nx,Ny,Nz).
 %% ``gl:index'' updates the current (single-valued) color index. It takes one argument,
 %% the new value for the current color index. 
 %%
-%%  The current index is stored as a floating-point value. Integer values are converted directly
-%% to floating-point values, with no special mapping. The initial value is 1. 
-%%
-%%  Index values outside the representable range of the color index buffer are not clamped.
-%% However, before an index is dithered (if enabled) and written to the frame buffer, it
-%% is converted to fixed-point format. Any bits in the integer portion of the resulting fixed-point
-%% value that do not correspond to bits in the frame buffer are masked out. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIndex.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glIndex.xml">external</a> documentation.
 -spec indexd(C) -> 'ok' when C :: float().
 indexd(C) ->
   cast(5129, <<C:?GLdouble>>).
@@ -3310,24 +1388,7 @@ indexubv({C}) ->  indexub(C).
 %% green, and blue values explicitly and set the current alpha value to 1.0 (full intensity)
 %% implicitly. ``gl:color4'' variants specify all four color components explicitly. 
 %%
-%% ``gl:color3b'', ``gl:color4b'', ``gl:color3s'', ``gl:color4s'', ``gl:color3i'',
-%% and ``gl:color4i'' take three or four signed byte, short, or long integers as arguments.
-%% When `v' is appended to the name, the color commands can take a pointer to an array
-%% of such values. 
-%%
-%%  Current color values are stored in floating-point format, with unspecified mantissa and
-%% exponent sizes. Unsigned integer color components, when specified, are linearly mapped
-%% to floating-point values such that the largest representable value maps to 1.0 (full intensity),
-%% and 0 maps to 0.0 (zero intensity). Signed integer color components, when specified, are
-%% linearly mapped to floating-point values such that the most positive representable value
-%% maps to 1.0, and the most negative representable value maps to   -1.0. (Note that this
-%% mapping does not convert 0 precisely to 0.0.) Floating-point values are mapped directly. 
-%%
-%%  Neither floating-point nor signed integer values are clamped to the range  [0 1] before the
-%% current color is updated. However, color components are clamped to this range before they
-%% are interpolated or written into a color buffer. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glColor.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glColor.xml">external</a> documentation.
 -spec color3b(Red, Green, Blue) -> 'ok' when Red :: integer(),Green :: integer(),Blue :: integer().
 color3b(Red,Green,Blue) ->
   cast(5134, <<Red:?GLbyte,Green:?GLbyte,Blue:?GLbyte>>).
@@ -3494,13 +1555,7 @@ color4usv({Red,Green,Blue,Alpha}) ->  color4us(Red,Green,Blue,Alpha).
 %% Similarly, ``gl:texCoord3'' specifies the texture coordinates as (s t r 1), and ``gl:texCoord4''
 %%  defines all four components explicitly as (s t r q). 
 %%
-%%  The current texture coordinates are part of the data that is associated with each vertex
-%% and with the current raster position. Initially, the values for `s', `t', `r'
-%% , and `q' are (0, 0, 0, 1). 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexCoord.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glTexCoord.xml">external</a> documentation.
 -spec texCoord1d(S) -> 'ok' when S :: float().
 texCoord1d(S) ->
   cast(5150, <<S:?GLdouble>>).
@@ -3666,41 +1721,7 @@ texCoord4sv({S,T,R,Q}) ->  texCoord4s(S,T,R,Q).
 %% subpixel accuracy. See  {@link gl:bitmap/7} ,  {@link gl:drawPixels/5} , and  {@link gl:copyPixels/5} 
 %% . 
 %%
-%%  The current raster position consists of three window coordinates ( x,  y,  z), a clip
-%% coordinate value  ( w), an eye coordinate distance, a valid bit, and associated color
-%% data and texture coordinates. The   w coordinate is a clip coordinate, because   w is
-%% not projected to window coordinates. ``gl:rasterPos4'' specifies object coordinates   x,
-%%  y,  z, and   w explicitly. ``gl:rasterPos3'' specifies object coordinate   x,  y, and
-%%   z explicitly, while   w is implicitly set to 1. ``gl:rasterPos2'' uses the argument
-%% values for   x and   y while implicitly setting   z and   w to 0 and 1. 
-%%
-%%  The object coordinates presented by ``gl:rasterPos'' are treated just like those of a  {@link gl:vertex2d/2} 
-%%  command: They are transformed by the current modelview and projection matrices and passed
-%% to the clipping stage. If the vertex is not culled, then it is projected and scaled to
-%% window coordinates, which become the new current raster position, and the `?GL_CURRENT_RASTER_POSITION_VALID'
-%%  flag is set. If the vertex `is' culled, then the valid bit is cleared and the current
-%% raster position and associated color and texture coordinates are undefined. 
-%%
-%%  The current raster position also includes some associated color data and texture coordinates.
-%% If lighting is enabled, then `?GL_CURRENT_RASTER_COLOR' (in RGBA mode) or `?GL_CURRENT_RASTER_INDEX'
-%%  (in color index mode) is set to the color produced by the lighting calculation (see  {@link gl:lightf/3} 
-%% ,  {@link gl:lightModelf/2} , and  {@link gl:shadeModel/1} ). If lighting is disabled, current
-%% color (in RGBA mode, state variable `?GL_CURRENT_COLOR') or color index (in color
-%% index mode, state variable `?GL_CURRENT_INDEX') is used to update the current raster
-%% color. `?GL_CURRENT_RASTER_SECONDARY_COLOR' (in RGBA mode) is likewise updated. 
-%%
-%%  Likewise, `?GL_CURRENT_RASTER_TEXTURE_COORDS' is updated as a function of `?GL_CURRENT_TEXTURE_COORDS'
-%% , based on the texture matrix and the texture generation functions (see  {@link gl:texGend/3} ).
-%% Finally, the distance from the origin of the eye coordinate system to the vertex as transformed
-%% by only the modelview matrix replaces `?GL_CURRENT_RASTER_DISTANCE'. 
-%%
-%%  Initially, the current raster position is (0, 0, 0, 1), the current raster distance is
-%% 0, the valid bit is set, the associated RGBA color is (1, 1, 1, 1), the associated color
-%% index is 1, and the associated texture coordinates are (0, 0, 0, 1). In RGBA mode, `?GL_CURRENT_RASTER_INDEX'
-%%  is always 1; in color index mode, the current raster RGBA color always maintains its
-%% initial value. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glRasterPos.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glRasterPos.xml">external</a> documentation.
 -spec rasterPos2d(X, Y) -> 'ok' when X :: float(),Y :: float().
 rasterPos2d(X,Y) ->
   cast(5166, <<X:?GLdouble,Y:?GLdouble>>).
@@ -3826,13 +1847,7 @@ rasterPos4sv({X,Y,Z,W}) ->  rasterPos4s(X,Y,Z,W).
 %% coordinates or as two pointers to arrays, each containing an  (x y) pair. The resulting rectangle
 %% is defined in the   z=0 plane. 
 %%
-%% ``gl:rect''( `X1' ,  `Y1' ,  `X2' ,  `Y2' ) is exactly equivalent to the
-%% following sequence:  glBegin(`?GL_POLYGON'); glVertex2( `X1' ,  `Y1' ); glVertex2(
-%%  `X2' ,  `Y1' ); glVertex2( `X2' ,  `Y2' ); glVertex2( `X1' ,  `Y2' );
-%% glEnd();  Note that if the second vertex is above and to the right of the first vertex,
-%% the rectangle is constructed with a counterclockwise winding. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glRect.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glRect.xml">external</a> documentation.
 -spec rectd(X1, Y1, X2, Y2) -> 'ok' when X1 :: float(),Y1 :: float(),X2 :: float(),Y2 :: float().
 rectd(X1,Y1,X2,Y2) ->
   cast(5178, <<X1:?GLdouble,Y1:?GLdouble,X2:?GLdouble,Y2:?GLdouble>>).
@@ -3888,21 +1903,7 @@ rectsv({V1,V2},{V1,V2}) ->
 %% to be packed into a single array or stored in separate arrays. (Single-array storage may
 %% be more efficient on some implementations; see  {@link gl:interleavedArrays/3} .) 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_ARRAY_BUFFER' target  (see  {@link gl:bindBuffer/2} 
-%% ) while a vertex array is specified,  `Pointer'  is treated as a byte offset into the
-%% buffer object's data store. Also, the buffer object binding (`?GL_ARRAY_BUFFER_BINDING'
-%% ) is saved as vertex array client-side state (`?GL_VERTEX_ARRAY_BUFFER_BINDING'). 
-%%
-%%  When a vertex array is specified,  `Size' ,  `Type' ,  `Stride' , and  `Pointer' 
-%%  are saved as client-side state, in addition to the current vertex array buffer object
-%% binding. 
-%%
-%%  To enable and disable the vertex array, call  {@link gl:enableClientState/1}  and  {@link gl:enableClientState/1} 
-%%  with the argument `?GL_VERTEX_ARRAY'. If enabled, the vertex array is used when  {@link gl:arrayElement/1} 
-%% ,  {@link gl:drawArrays/3} ,  {@link gl:multiDrawArrays/3} ,  {@link gl:drawElements/4} , see `glMultiDrawElements'
-%% , or  {@link gl:drawRangeElements/6}  is called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertexPointer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glVertexPointer.xml">external</a> documentation.
 -spec vertexPointer(Size, Type, Stride, Ptr) -> 'ok' when Size :: integer(),Type :: enum(),Stride :: integer(),Ptr :: offset()|mem().
 vertexPointer(Size,Type,Stride,Ptr) when  is_integer(Ptr) ->
   cast(5186, <<Size:?GLint,Type:?GLenum,Stride:?GLsizei,Ptr:?GLuint>>);
@@ -3918,22 +1919,7 @@ vertexPointer(Size,Type,Stride,Ptr) ->
 %% to be packed into a single array or stored in separate arrays. (Single-array storage may
 %% be more efficient on some implementations; see  {@link gl:interleavedArrays/3} .) 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_ARRAY_BUFFER' target  (see  {@link gl:bindBuffer/2} 
-%% ) while a normal array is specified,  `Pointer'  is treated as a byte offset into the
-%% buffer object's data store. Also, the buffer object binding (`?GL_ARRAY_BUFFER_BINDING'
-%% ) is saved as normal vertex array client-side state (`?GL_NORMAL_ARRAY_BUFFER_BINDING'
-%% ). 
-%%
-%%  When a normal array is specified,  `Type' ,  `Stride' , and  `Pointer'  are
-%% saved as client-side state, in addition to the current vertex array buffer object binding.
-%% 
-%%
-%%  To enable and disable the normal array, call  {@link gl:enableClientState/1}  and  {@link gl:enableClientState/1} 
-%%  with the argument `?GL_NORMAL_ARRAY'. If enabled, the normal array is used when  {@link gl:drawArrays/3} 
-%% ,  {@link gl:multiDrawArrays/3} ,  {@link gl:drawElements/4} , see `glMultiDrawElements',  {@link gl:drawRangeElements/6} 
-%% , or  {@link gl:arrayElement/1}  is called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glNormalPointer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glNormalPointer.xml">external</a> documentation.
 -spec normalPointer(Type, Stride, Ptr) -> 'ok' when Type :: enum(),Stride :: integer(),Ptr :: offset()|mem().
 normalPointer(Type,Stride,Ptr) when  is_integer(Ptr) ->
   cast(5188, <<Type:?GLenum,Stride:?GLsizei,Ptr:?GLuint>>);
@@ -3950,22 +1936,7 @@ normalPointer(Type,Stride,Ptr) ->
 %% to be packed into a single array or stored in separate arrays. (Single-array storage may
 %% be more efficient on some implementations; see  {@link gl:interleavedArrays/3} .) 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_ARRAY_BUFFER' target  (see  {@link gl:bindBuffer/2} 
-%% ) while a color array is specified,  `Pointer'  is treated as a byte offset into the
-%% buffer object's data store. Also, the buffer object binding (`?GL_ARRAY_BUFFER_BINDING'
-%% ) is saved as color vertex array client-side state (`?GL_COLOR_ARRAY_BUFFER_BINDING').
-%% 
-%%
-%%  When a color array is specified,  `Size' ,  `Type' ,  `Stride' , and  `Pointer' 
-%%  are saved as client-side state, in addition to the current vertex array buffer object
-%% binding. 
-%%
-%%  To enable and disable the color array, call  {@link gl:enableClientState/1}  and  {@link gl:enableClientState/1} 
-%%  with the argument `?GL_COLOR_ARRAY'. If enabled, the color array is used when  {@link gl:drawArrays/3} 
-%% ,  {@link gl:multiDrawArrays/3} ,  {@link gl:drawElements/4} , see `glMultiDrawElements',  {@link gl:drawRangeElements/6} 
-%% , or  {@link gl:arrayElement/1}  is called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glColorPointer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glColorPointer.xml">external</a> documentation.
 -spec colorPointer(Size, Type, Stride, Ptr) -> 'ok' when Size :: integer(),Type :: enum(),Stride :: integer(),Ptr :: offset()|mem().
 colorPointer(Size,Type,Stride,Ptr) when  is_integer(Ptr) ->
   cast(5190, <<Size:?GLint,Type:?GLenum,Stride:?GLsizei,Ptr:?GLuint>>);
@@ -3980,22 +1951,7 @@ colorPointer(Size,Type,Stride,Ptr) ->
 %%  specifies the byte stride from one color index to the next, allowing vertices and attributes
 %% to be packed into a single array or stored in separate arrays. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_ARRAY_BUFFER' target  (see  {@link gl:bindBuffer/2} 
-%% ) while a color index array is specified,  `Pointer'  is treated as a byte offset into
-%% the buffer object's data store. Also, the buffer object binding (`?GL_ARRAY_BUFFER_BINDING'
-%% ) is saved as color index vertex array client-side state (`?GL_INDEX_ARRAY_BUFFER_BINDING'
-%% ). 
-%%
-%%  When a color index array is specified,  `Type' ,  `Stride' , and  `Pointer' 
-%% are saved as client-side state, in addition to the current vertex array buffer object
-%% binding. 
-%%
-%%  To enable and disable the color index array, call  {@link gl:enableClientState/1}  and  {@link gl:enableClientState/1} 
-%%  with the argument `?GL_INDEX_ARRAY'. If enabled, the color index array is used when
-%%  {@link gl:drawArrays/3} ,  {@link gl:multiDrawArrays/3} ,  {@link gl:drawElements/4} , see `glMultiDrawElements'
-%% ,  {@link gl:drawRangeElements/6} , or  {@link gl:arrayElement/1}  is called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIndexPointer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glIndexPointer.xml">external</a> documentation.
 -spec indexPointer(Type, Stride, Ptr) -> 'ok' when Type :: enum(),Stride :: integer(),Ptr :: offset()|mem().
 indexPointer(Type,Stride,Ptr) when  is_integer(Ptr) ->
   cast(5192, <<Type:?GLenum,Stride:?GLsizei,Ptr:?GLuint>>);
@@ -4013,23 +1969,7 @@ indexPointer(Type,Stride,Ptr) ->
 %% array or stored in separate arrays. (Single-array storage may be more efficient on some
 %% implementations; see  {@link gl:interleavedArrays/3} .) 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_ARRAY_BUFFER' target  (see  {@link gl:bindBuffer/2} 
-%% ) while a texture coordinate array is specified,  `Pointer'  is treated as a byte offset
-%% into the buffer object's data store. Also, the buffer object binding (`?GL_ARRAY_BUFFER_BINDING'
-%% ) is saved as texture coordinate vertex array client-side state (`?GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING'
-%% ). 
-%%
-%%  When a texture coordinate array is specified,  `Size' ,  `Type' ,  `Stride' ,
-%% and  `Pointer'  are saved as client-side state, in addition to the current vertex array
-%% buffer object binding. 
-%%
-%%  To enable and disable a texture coordinate array, call  {@link gl:enableClientState/1} 
-%% and  {@link gl:enableClientState/1}  with the argument `?GL_TEXTURE_COORD_ARRAY'. If
-%% enabled, the texture coordinate array is used when  {@link gl:arrayElement/1} ,  {@link gl:drawArrays/3} 
-%% ,  {@link gl:multiDrawArrays/3} ,  {@link gl:drawElements/4} , see `glMultiDrawElements',
-%% or  {@link gl:drawRangeElements/6}  is called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexCoordPointer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glTexCoordPointer.xml">external</a> documentation.
 -spec texCoordPointer(Size, Type, Stride, Ptr) -> 'ok' when Size :: integer(),Type :: enum(),Stride :: integer(),Ptr :: offset()|mem().
 texCoordPointer(Size,Type,Stride,Ptr) when  is_integer(Ptr) ->
   cast(5194, <<Size:?GLint,Type:?GLenum,Stride:?GLsizei,Ptr:?GLuint>>);
@@ -4044,21 +1984,7 @@ texCoordPointer(Size,Type,Stride,Ptr) ->
 %% flag to the next, allowing vertices and attributes to be packed into a single array or
 %% stored in separate arrays. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_ARRAY_BUFFER' target  (see  {@link gl:bindBuffer/2} 
-%% ) while an edge flag array is specified,  `Pointer'  is treated as a byte offset into
-%% the buffer object's data store. Also, the buffer object binding (`?GL_ARRAY_BUFFER_BINDING'
-%% ) is saved as edge flag vertex array client-side state (`?GL_EDGE_FLAG_ARRAY_BUFFER_BINDING'
-%% ). 
-%%
-%%  When an edge flag array is specified,  `Stride'  and  `Pointer'  are saved as client-side
-%% state, in addition to the current vertex array buffer object binding. 
-%%
-%%  To enable and disable the edge flag array, call  {@link gl:enableClientState/1}  and  {@link gl:enableClientState/1} 
-%%  with the argument `?GL_EDGE_FLAG_ARRAY'. If enabled, the edge flag array is used
-%% when  {@link gl:drawArrays/3} ,  {@link gl:multiDrawArrays/3} ,  {@link gl:drawElements/4} , see `glMultiDrawElements'
-%% ,  {@link gl:drawRangeElements/6} , or  {@link gl:arrayElement/1}  is called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glEdgeFlagPointer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glEdgeFlagPointer.xml">external</a> documentation.
 -spec edgeFlagPointer(Stride, Ptr) -> 'ok' when Stride :: integer(),Ptr :: offset()|mem().
 edgeFlagPointer(Stride,Ptr) when  is_integer(Ptr) ->
   cast(5196, <<Stride:?GLsizei,Ptr:?GLuint>>);
@@ -4075,18 +2001,7 @@ edgeFlagPointer(Stride,Ptr) ->
 %%  is not enabled, no drawing occurs but the attributes corresponding to the enabled arrays
 %% are modified. 
 %%
-%%  Use ``gl:arrayElement'' to construct primitives by indexing vertex data, rather than
-%% by streaming through arrays of data in first-to-last order. Because each call specifies
-%% only a single vertex, it is possible to explicitly specify per-primitive attributes such
-%% as a single normal for each triangle. 
-%%
-%%  Changes made to array data between the execution of  {@link gl:'begin'/1}  and the corresponding
-%% execution of  {@link gl:'begin'/1}  may affect calls to ``gl:arrayElement'' that are made within
-%% the same  {@link gl:'begin'/1} / {@link gl:'begin'/1}  period in nonsequential ways. That is, a call
-%% to ``gl:arrayElement'' that precedes a change to array data may access the changed data,
-%% and a call that follows a change to array data may access original data. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glArrayElement.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glArrayElement.xml">external</a> documentation.
 -spec arrayElement(I) -> 'ok' when I :: integer().
 arrayElement(I) ->
   cast(5198, <<I:?GLint>>).
@@ -4099,15 +2014,7 @@ arrayElement(I) ->
 %% and use them to construct a sequence of primitives with a single call to ``gl:drawArrays''
 %% . 
 %%
-%%  When ``gl:drawArrays'' is called, it uses  `Count'  sequential elements from each
-%% enabled array to construct a sequence of geometric primitives, beginning with element  `First' 
-%% .  `Mode'  specifies what kind of primitives are constructed and how the array elements
-%% construct those primitives. 
-%%
-%%  Vertex attributes that are modified by ``gl:drawArrays'' have an unspecified value
-%% after ``gl:drawArrays'' returns. Attributes that aren't modified remain well defined. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawArrays.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawArrays.xhtml">external</a> documentation.
 -spec drawArrays(Mode, First, Count) -> 'ok' when Mode :: enum(),First :: integer(),Count :: integer().
 drawArrays(Mode,First,Count) ->
   cast(5199, <<Mode:?GLenum,First:?GLint,Count:?GLsizei>>).
@@ -4120,16 +2027,7 @@ drawArrays(Mode,First,Count) ->
 %% and so on, and use them to construct a sequence of primitives with a single call to ``gl:drawElements''
 %% . 
 %%
-%%  When ``gl:drawElements'' is called, it uses  `Count'  sequential elements from an
-%% enabled array, starting at  `Indices'  to construct a sequence of geometric primitives.
-%%  `Mode'  specifies what kind of primitives are constructed and how the array elements
-%% construct these primitives. If more than one array is enabled, each is used. 
-%%
-%%  Vertex attributes that are modified by ``gl:drawElements'' have an unspecified value
-%% after ``gl:drawElements'' returns. Attributes that aren't modified maintain their previous
-%% values. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawElements.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawElements.xhtml">external</a> documentation.
 -spec drawElements(Mode, Count, Type, Indices) -> 'ok' when Mode :: enum(),Count :: integer(),Type :: enum(),Indices :: offset()|mem().
 drawElements(Mode,Count,Type,Indices) when  is_integer(Indices) ->
   cast(5200, <<Mode:?GLenum,Count:?GLsizei,Type:?GLenum,Indices:?GLuint>>);
@@ -4143,21 +2041,7 @@ drawElements(Mode,Count,Type,Indices) ->
 %% and vertex arrays whose elements are part of a larger aggregate array element. For some
 %% implementations, this is more efficient than specifying the arrays separately. 
 %%
-%%  If  `Stride'  is 0, the aggregate elements are stored consecutively. Otherwise,  `Stride' 
-%%  bytes occur between the beginning of one aggregate array element and the beginning of
-%% the next aggregate array element. 
-%%
-%%  `Format'  serves as a ``key'' describing the extraction of individual arrays from
-%% the aggregate array. If  `Format'  contains a T, then texture coordinates are extracted
-%% from the interleaved array. If C is present, color values are extracted. If N is present,
-%% normal coordinates are extracted. Vertex coordinates are always extracted. 
-%%
-%%  The digits 2, 3, and 4 denote how many values are extracted. F indicates that values
-%% are extracted as floating-point values. Colors may also be extracted as 4 unsigned bytes
-%% if 4UB follows the C. If a color is extracted as 4 unsigned bytes, the vertex array element
-%% which follows is located at the first possible floating-point aligned address. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glInterleavedArrays.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glInterleavedArrays.xml">external</a> documentation.
 -spec interleavedArrays(Format, Stride, Pointer) -> 'ok' when Format :: enum(),Stride :: integer(),Pointer :: offset()|mem().
 interleavedArrays(Format,Stride,Pointer) when  is_integer(Pointer) ->
   cast(5202, <<Format:?GLenum,Stride:?GLsizei,Pointer:?GLuint>>);
@@ -4175,23 +2059,7 @@ interleavedArrays(Format,Stride,Pointer) ->
 %% result of lighting if lighting is enabled, or it is the current color at the time the
 %% vertex was specified if lighting is disabled. 
 %%
-%%  Flat and smooth shading are indistinguishable for points. Starting when  {@link gl:'begin'/1} 
-%% is issued and counting vertices and primitives from 1, the GL gives each flat-shaded line
-%% segment   i the computed color of vertex   i+1, its second vertex. Counting similarly
-%% from 1, the GL gives each flat-shaded polygon the computed color of the vertex listed
-%% in the following table. This is the last vertex to specify the polygon in all cases except
-%% single polygons, where the first vertex specifies the flat-shaded color. 
-%%
-%% <table><tbody><tr><td>` Primitive Type of Polygon  ' i</td><td>` Vertex '</td></tr>
-%% </tbody><tbody><tr><td> Single polygon  ( i== 1) </td><td> 1 </td></tr><tr><td> Triangle
-%% strip </td><td> i+2</td></tr><tr><td> Triangle fan </td><td> i+2</td></tr><tr><td> Independent
-%% triangle </td><td> 3  i</td></tr><tr><td> Quad strip </td><td> 2  i+2</td></tr><tr><td>
-%% Independent quad  </td><td> 4  i</td></tr></tbody></table>
-%%
-%%  Flat and smooth shading are specified by ``gl:shadeModel'' with  `Mode'  set to `?GL_FLAT'
-%%  and `?GL_SMOOTH', respectively. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glShadeModel.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glShadeModel.xml">external</a> documentation.
 -spec shadeModel(Mode) -> 'ok' when Mode :: enum().
 shadeModel(Mode) ->
   cast(5204, <<Mode:?GLenum>>).
@@ -4204,88 +2072,7 @@ shadeModel(Mode) ->
 %% parameters, again by symbolic name.  `Params'  is either a single value or a pointer
 %% to an array that contains the new values. 
 %%
-%%  To enable and disable lighting calculation, call  {@link gl:enable/1}  and  {@link gl:enable/1} 
-%%  with argument `?GL_LIGHTING'. Lighting is initially disabled. When it is enabled,
-%% light sources that are enabled contribute to the lighting calculation. Light source   i
-%% is enabled and disabled using  {@link gl:enable/1}  and  {@link gl:enable/1}  with argument `?GL_LIGHT'
-%%  i. 
-%%
-%%  The ten light parameters are as follows: 
-%%
-%% `?GL_AMBIENT':  `Params'  contains four integer or floating-point values that
-%% specify the ambient RGBA intensity of the light. Integer values are mapped linearly such
-%% that the most positive representable value maps to 1.0, and the most negative representable
-%% value maps to   -1.0. Floating-point values are mapped directly. Neither integer nor floating-point
-%% values are clamped. The initial ambient light intensity is (0, 0, 0, 1). 
-%%
-%% `?GL_DIFFUSE':  `Params'  contains four integer or floating-point values that
-%% specify the diffuse RGBA intensity of the light. Integer values are mapped linearly such
-%% that the most positive representable value maps to 1.0, and the most negative representable
-%% value maps to   -1.0. Floating-point values are mapped directly. Neither integer nor floating-point
-%% values are clamped. The initial value for `?GL_LIGHT0' is (1, 1, 1, 1); for other
-%% lights, the initial value is (0, 0, 0, 1). 
-%%
-%% `?GL_SPECULAR':  `Params'  contains four integer or floating-point values that
-%% specify the specular RGBA intensity of the light. Integer values are mapped linearly such
-%% that the most positive representable value maps to 1.0, and the most negative representable
-%% value maps to   -1.0. Floating-point values are mapped directly. Neither integer nor floating-point
-%% values are clamped. The initial value for `?GL_LIGHT0' is (1, 1, 1, 1); for other
-%% lights, the initial value is (0, 0, 0, 1). 
-%%
-%% `?GL_POSITION':  `Params'  contains four integer or floating-point values that
-%% specify the position of the light in homogeneous object coordinates. Both integer and
-%% floating-point values are mapped directly. Neither integer nor floating-point values are
-%% clamped. 
-%%
-%%  The position is transformed by the modelview matrix when ``gl:light'' is called (just
-%% as if it were a point), and it is stored in eye coordinates. If the   w component of the
-%% position is 0, the light is treated as a directional source. Diffuse and specular lighting
-%% calculations take the light's direction, but not its actual position, into account, and
-%% attenuation is disabled. Otherwise, diffuse and specular lighting calculations are based
-%% on the actual location of the light in eye coordinates, and attenuation is enabled. The
-%% initial position is (0, 0, 1, 0); thus, the initial light source is directional, parallel
-%% to, and in the direction of the  -z axis. 
-%%
-%% `?GL_SPOT_DIRECTION':  `Params'  contains three integer or floating-point values
-%% that specify the direction of the light in homogeneous object coordinates. Both integer
-%% and floating-point values are mapped directly. Neither integer nor floating-point values
-%% are clamped. 
-%%
-%%  The spot direction is transformed by the upper 3x3 of the modelview matrix when ``gl:light''
-%%  is called, and it is stored in eye coordinates. It is significant only when `?GL_SPOT_CUTOFF'
-%%  is not 180, which it is initially. The initial direction is  (0 0 -1). 
-%%
-%% `?GL_SPOT_EXPONENT':  `Params'  is a single integer or floating-point value that
-%% specifies the intensity distribution of the light. Integer and floating-point values are
-%% mapped directly. Only values in the range  [0 128] are accepted. 
-%%
-%%  Effective light intensity is attenuated by the cosine of the angle between the direction
-%% of the light and the direction from the light to the vertex being lighted, raised to the
-%% power of the spot exponent. Thus, higher spot exponents result in a more focused light
-%% source, regardless of the spot cutoff angle (see `?GL_SPOT_CUTOFF', next paragraph).
-%% The initial spot exponent is 0, resulting in uniform light distribution. 
-%%
-%% `?GL_SPOT_CUTOFF':  `Params'  is a single integer or floating-point value that
-%% specifies the maximum spread angle of a light source. Integer and floating-point values
-%% are mapped directly. Only values in the range  [0 90] and the special value 180 are accepted.
-%% If the angle between the direction of the light and the direction from the light to the
-%% vertex being lighted is greater than the spot cutoff angle, the light is completely masked.
-%% Otherwise, its intensity is controlled by the spot exponent and the attenuation factors.
-%% The initial spot cutoff is 180, resulting in uniform light distribution. 
-%%
-%% `?GL_CONSTANT_ATTENUATION'
-%%
-%% `?GL_LINEAR_ATTENUATION'
-%%
-%% `?GL_QUADRATIC_ATTENUATION':  `Params'  is a single integer or floating-point
-%% value that specifies one of the three light attenuation factors. Integer and floating-point
-%% values are mapped directly. Only nonnegative values are accepted. If the light is positional,
-%% rather than directional, its intensity is attenuated by the reciprocal of the sum of the
-%% constant factor, the linear factor times the distance between the light and the vertex
-%% being lighted, and the quadratic factor times the square of the same distance. The initial
-%% attenuation factors are (1, 0, 0), resulting in no attenuation. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLight.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glLight.xml">external</a> documentation.
 -spec lightf(Light, Pname, Param) -> 'ok' when Light :: enum(),Pname :: enum(),Param :: float().
 lightf(Light,Pname,Param) ->
   cast(5205, <<Light:?GLenum,Pname:?GLenum,Param:?GLfloat>>).
@@ -4318,73 +2105,7 @@ lightiv(Light,Pname,Params) ->
 %% implementation dependent constant that is greater than or equal to eight.  `Pname' 
 %% specifies one of ten light source parameters, again by symbolic name. 
 %%
-%%  The following parameters are defined: 
-%%
-%% `?GL_AMBIENT':  `Params'  returns four integer or floating-point values representing
-%% the ambient intensity of the light source. Integer values, when requested, are linearly
-%% mapped from the internal floating-point representation such that 1.0 maps to the most
-%% positive representable integer value, and   -1.0 maps to the most negative representable
-%% integer value. If the internal value is outside the range  [-1 1], the corresponding integer
-%% return value is undefined. The initial value is (0, 0, 0, 1). 
-%%
-%% `?GL_DIFFUSE':  `Params'  returns four integer or floating-point values representing
-%% the diffuse intensity of the light source. Integer values, when requested, are linearly
-%% mapped from the internal floating-point representation such that 1.0 maps to the most
-%% positive representable integer value, and   -1.0 maps to the most negative representable
-%% integer value. If the internal value is outside the range  [-1 1], the corresponding integer
-%% return value is undefined. The initial value for `?GL_LIGHT0' is (1, 1, 1, 1); for
-%% other lights, the initial value is (0, 0, 0, 0). 
-%%
-%% `?GL_SPECULAR':  `Params'  returns four integer or floating-point values representing
-%% the specular intensity of the light source. Integer values, when requested, are linearly
-%% mapped from the internal floating-point representation such that 1.0 maps to the most
-%% positive representable integer value, and   -1.0 maps to the most negative representable
-%% integer value. If the internal value is outside the range  [-1 1], the corresponding integer
-%% return value is undefined. The initial value for `?GL_LIGHT0' is (1, 1, 1, 1); for
-%% other lights, the initial value is (0, 0, 0, 0). 
-%%
-%% `?GL_POSITION':  `Params'  returns four integer or floating-point values representing
-%% the position of the light source. Integer values, when requested, are computed by rounding
-%% the internal floating-point values to the nearest integer value. The returned values are
-%% those maintained in eye coordinates. They will not be equal to the values specified using
-%%  {@link gl:lightf/3} , unless the modelview matrix was identity at the time  {@link gl:lightf/3} 
-%% was called. The initial value is (0, 0, 1, 0). 
-%%
-%% `?GL_SPOT_DIRECTION':  `Params'  returns three integer or floating-point values
-%% representing the direction of the light source. Integer values, when requested, are computed
-%% by rounding the internal floating-point values to the nearest integer value. The returned
-%% values are those maintained in eye coordinates. They will not be equal to the values specified
-%% using  {@link gl:lightf/3} , unless the modelview matrix was identity at the time  {@link gl:lightf/3} 
-%%  was called. Although spot direction is normalized before being used in the lighting equation,
-%% the returned values are the transformed versions of the specified values prior to normalization.
-%% The initial value is  (0 0 -1). 
-%%
-%% `?GL_SPOT_EXPONENT':  `Params'  returns a single integer or floating-point value
-%% representing the spot exponent of the light. An integer value, when requested, is computed
-%% by rounding the internal floating-point representation to the nearest integer. The initial
-%% value is 0. 
-%%
-%% `?GL_SPOT_CUTOFF':  `Params'  returns a single integer or floating-point value
-%% representing the spot cutoff angle of the light. An integer value, when requested, is
-%% computed by rounding the internal floating-point representation to the nearest integer.
-%% The initial value is 180. 
-%%
-%% `?GL_CONSTANT_ATTENUATION':  `Params'  returns a single integer or floating-point
-%% value representing the constant (not distance-related) attenuation of the light. An integer
-%% value, when requested, is computed by rounding the internal floating-point representation
-%% to the nearest integer. The initial value is 1. 
-%%
-%% `?GL_LINEAR_ATTENUATION':  `Params'  returns a single integer or floating-point
-%% value representing the linear attenuation of the light. An integer value, when requested,
-%% is computed by rounding the internal floating-point representation to the nearest integer.
-%% The initial value is 0. 
-%%
-%% `?GL_QUADRATIC_ATTENUATION':  `Params'  returns a single integer or floating-point
-%% value representing the quadratic attenuation of the light. An integer value, when requested,
-%% is computed by rounding the internal floating-point representation to the nearest integer.
-%% The initial value is 0. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetLight.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetLight.xml">external</a> documentation.
 -spec getLightfv(Light, Pname) -> {float(),float(),float(),float()} when Light :: enum(),Pname :: enum().
 getLightfv(Light,Pname) ->
   call(5209, <<Light:?GLenum,Pname:?GLenum>>).
@@ -4400,63 +2121,7 @@ getLightiv(Light,Pname) ->
 %% ``gl:lightModel'' sets the lighting model parameter.  `Pname'  names a parameter
 %% and  `Params'  gives the new value. There are three lighting model parameters: 
 %%
-%% `?GL_LIGHT_MODEL_AMBIENT':  `Params'  contains four integer or floating-point
-%% values that specify the ambient RGBA intensity of the entire scene. Integer values are
-%% mapped linearly such that the most positive representable value maps to 1.0, and the most
-%% negative representable value maps to   -1.0. Floating-point values are mapped directly.
-%% Neither integer nor floating-point values are clamped. The initial ambient scene intensity
-%% is (0.2, 0.2, 0.2, 1.0). 
-%%
-%% `?GL_LIGHT_MODEL_COLOR_CONTROL':  `Params'  must be either `?GL_SEPARATE_SPECULAR_COLOR'
-%%  or `?GL_SINGLE_COLOR'. `?GL_SINGLE_COLOR' specifies that a single color is
-%% generated from the lighting computation for a vertex. `?GL_SEPARATE_SPECULAR_COLOR'
-%% specifies that the specular color computation of lighting be stored separately from the
-%% remainder of the lighting computation. The specular color is summed into the generated
-%% fragment's color after the application of texture mapping (if enabled). The initial value
-%% is `?GL_SINGLE_COLOR'. 
-%%
-%% `?GL_LIGHT_MODEL_LOCAL_VIEWER':  `Params'  is a single integer or floating-point
-%% value that specifies how specular reflection angles are computed. If  `Params'  is
-%% 0 (or 0.0), specular reflection angles take the view direction to be parallel to and in
-%% the direction of the -`z' axis, regardless of the location of the vertex in eye coordinates.
-%% Otherwise, specular reflections are computed from the origin of the eye coordinate system.
-%% The initial value is 0. 
-%%
-%% `?GL_LIGHT_MODEL_TWO_SIDE':  `Params'  is a single integer or floating-point value
-%% that specifies whether one- or two-sided lighting calculations are done for polygons.
-%% It has no effect on the lighting calculations for points, lines, or bitmaps. If  `Params' 
-%%  is 0 (or 0.0), one-sided lighting is specified, and only the `front' material parameters
-%% are used in the lighting equation. Otherwise, two-sided lighting is specified. In this
-%% case, vertices of back-facing polygons are lighted using the `back' material parameters
-%% and have their normals reversed before the lighting equation is evaluated. Vertices of
-%% front-facing polygons are always lighted using the `front' material parameters, with
-%% no change to their normals. The initial value is 0. 
-%%
-%%  In RGBA mode, the lighted color of a vertex is the sum of the material emission intensity,
-%% the product of the material ambient reflectance and the lighting model full-scene ambient
-%% intensity, and the contribution of each enabled light source. Each light source contributes
-%% the sum of three terms: ambient, diffuse, and specular. The ambient light source contribution
-%% is the product of the material ambient reflectance and the light's ambient intensity.
-%% The diffuse light source contribution is the product of the material diffuse reflectance,
-%% the light's diffuse intensity, and the dot product of the vertex's normal with the normalized
-%% vector from the vertex to the light source. The specular light source contribution is
-%% the product of the material specular reflectance, the light's specular intensity, and
-%% the dot product of the normalized vertex-to-eye and vertex-to-light vectors, raised to
-%% the power of the shininess of the material. All three light source contributions are attenuated
-%% equally based on the distance from the vertex to the light source and on light source
-%% direction, spread exponent, and spread cutoff angle. All dot products are replaced with
-%% 0 if they evaluate to a negative value. 
-%%
-%%  The alpha component of the resulting lighted color is set to the alpha value of the material
-%% diffuse reflectance. 
-%%
-%%  In color index mode, the value of the lighted index of a vertex ranges from the ambient
-%% to the specular values passed to  {@link gl:materialf/3}  using `?GL_COLOR_INDEXES'.
-%% Diffuse and specular coefficients, computed with a (.30, .59, .11) weighting of the lights'
-%% colors, the shininess of the material, and the same reflection and attenuation equations
-%% as in the RGBA case, determine how much above ambient the resulting index is. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLightModel.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glLightModel.xml">external</a> documentation.
 -spec lightModelf(Pname, Param) -> 'ok' when Pname :: enum(),Param :: float().
 lightModelf(Pname,Param) ->
   cast(5211, <<Pname:?GLenum,Param:?GLfloat>>).
@@ -4490,60 +2155,7 @@ lightModeliv(Pname,Params) ->
 %% to shade back-facing polygons only when two-sided lighting is enabled. Refer to the  {@link gl:lightModelf/2} 
 %%  reference page for details concerning one- and two-sided lighting calculations. 
 %%
-%% ``gl:material'' takes three arguments. The first,  `Face' , specifies whether the `?GL_FRONT'
-%%  materials, the `?GL_BACK' materials, or both `?GL_FRONT_AND_BACK' materials
-%% will be modified. The second,  `Pname' , specifies which of several parameters in one
-%% or both sets will be modified. The third,  `Params' , specifies what value or values
-%% will be assigned to the specified parameter. 
-%%
-%%  Material parameters are used in the lighting equation that is optionally applied to each
-%% vertex. The equation is discussed in the  {@link gl:lightModelf/2}  reference page. The parameters
-%% that can be specified using ``gl:material'', and their interpretations by the lighting
-%% equation, are as follows: 
-%%
-%% `?GL_AMBIENT':  `Params'  contains four integer or floating-point values that
-%% specify the ambient RGBA reflectance of the material. Integer values are mapped linearly
-%% such that the most positive representable value maps to 1.0, and the most negative representable
-%% value maps to   -1.0. Floating-point values are mapped directly. Neither integer nor floating-point
-%% values are clamped. The initial ambient reflectance for both front- and back-facing materials
-%% is (0.2, 0.2, 0.2, 1.0). 
-%%
-%% `?GL_DIFFUSE':  `Params'  contains four integer or floating-point values that
-%% specify the diffuse RGBA reflectance of the material. Integer values are mapped linearly
-%% such that the most positive representable value maps to 1.0, and the most negative representable
-%% value maps to   -1.0. Floating-point values are mapped directly. Neither integer nor floating-point
-%% values are clamped. The initial diffuse reflectance for both front- and back-facing materials
-%% is (0.8, 0.8, 0.8, 1.0). 
-%%
-%% `?GL_SPECULAR':  `Params'  contains four integer or floating-point values that
-%% specify the specular RGBA reflectance of the material. Integer values are mapped linearly
-%% such that the most positive representable value maps to 1.0, and the most negative representable
-%% value maps to   -1.0. Floating-point values are mapped directly. Neither integer nor floating-point
-%% values are clamped. The initial specular reflectance for both front- and back-facing materials
-%% is (0, 0, 0, 1). 
-%%
-%% `?GL_EMISSION':  `Params'  contains four integer or floating-point values that
-%% specify the RGBA emitted light intensity of the material. Integer values are mapped linearly
-%% such that the most positive representable value maps to 1.0, and the most negative representable
-%% value maps to   -1.0. Floating-point values are mapped directly. Neither integer nor floating-point
-%% values are clamped. The initial emission intensity for both front- and back-facing materials
-%% is (0, 0, 0, 1). 
-%%
-%% `?GL_SHININESS':  `Params'  is a single integer or floating-point value that specifies
-%% the RGBA specular exponent of the material. Integer and floating-point values are mapped
-%% directly. Only values in the range  [0 128] are accepted. The initial specular exponent for both
-%% front- and back-facing materials is 0. 
-%%
-%% `?GL_AMBIENT_AND_DIFFUSE':  Equivalent to calling ``gl:material'' twice with the
-%% same parameter values, once with `?GL_AMBIENT' and once with `?GL_DIFFUSE'. 
-%%
-%% `?GL_COLOR_INDEXES':  `Params'  contains three integer or floating-point values
-%% specifying the color indices for ambient, diffuse, and specular lighting. These three
-%% values, and `?GL_SHININESS', are the only material values used by the color index
-%% mode lighting equation. Refer to the  {@link gl:lightModelf/2}  reference page for a discussion
-%% of color index lighting. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMaterial.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glMaterial.xml">external</a> documentation.
 -spec materialf(Face, Pname, Param) -> 'ok' when Face :: enum(),Pname :: enum(),Param :: float().
 materialf(Face,Pname,Param) ->
   cast(5215, <<Face:?GLenum,Pname:?GLenum,Param:?GLfloat>>).
@@ -4573,46 +2185,7 @@ materialiv(Face,Pname,Params) ->
 %% ``gl:getMaterial'' returns in  `Params'  the value or values of parameter  `Pname' 
 %%  of material  `Face' . Six parameters are defined: 
 %%
-%% `?GL_AMBIENT':  `Params'  returns four integer or floating-point values representing
-%% the ambient reflectance of the material. Integer values, when requested, are linearly
-%% mapped from the internal floating-point representation such that 1.0 maps to the most
-%% positive representable integer value, and   -1.0 maps to the most negative representable
-%% integer value. If the internal value is outside the range  [-1 1], the corresponding integer
-%% return value is undefined. The initial value is (0.2, 0.2, 0.2, 1.0) 
-%%
-%% `?GL_DIFFUSE':  `Params'  returns four integer or floating-point values representing
-%% the diffuse reflectance of the material. Integer values, when requested, are linearly
-%% mapped from the internal floating-point representation such that 1.0 maps to the most
-%% positive representable integer value, and   -1.0 maps to the most negative representable
-%% integer value. If the internal value is outside the range  [-1 1], the corresponding integer
-%% return value is undefined. The initial value is (0.8, 0.8, 0.8, 1.0). 
-%%
-%% `?GL_SPECULAR':  `Params'  returns four integer or floating-point values representing
-%% the specular reflectance of the material. Integer values, when requested, are linearly
-%% mapped from the internal floating-point representation such that 1.0 maps to the most
-%% positive representable integer value, and   -1.0 maps to the most negative representable
-%% integer value. If the internal value is outside the range  [-1 1], the corresponding integer
-%% return value is undefined. The initial value is (0, 0, 0, 1). 
-%%
-%% `?GL_EMISSION':  `Params'  returns four integer or floating-point values representing
-%% the emitted light intensity of the material. Integer values, when requested, are linearly
-%% mapped from the internal floating-point representation such that 1.0 maps to the most
-%% positive representable integer value, and   -1.0 maps to the most negative representable
-%% integer value. If the internal value is outside the range  [-1 1], the corresponding integer
-%% return value is undefined. The initial value is (0, 0, 0, 1). 
-%%
-%% `?GL_SHININESS':  `Params'  returns one integer or floating-point value representing
-%% the specular exponent of the material. Integer values, when requested, are computed by
-%% rounding the internal floating-point value to the nearest integer value. The initial value
-%% is 0. 
-%%
-%% `?GL_COLOR_INDEXES':  `Params'  returns three integer or floating-point values
-%% representing the ambient, diffuse, and specular indices of the material. These indices
-%% are used only for color index lighting. (All the other parameters are used only for RGBA
-%% lighting.) Integer values, when requested, are computed by rounding the internal floating-point
-%% values to the nearest integer values. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetMaterial.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetMaterial.xml">external</a> documentation.
 -spec getMaterialfv(Face, Pname) -> {float(),float(),float(),float()} when Face :: enum(),Pname :: enum().
 getMaterialfv(Face,Pname) ->
   call(5219, <<Face:?GLenum,Pname:?GLenum>>).
@@ -4629,11 +2202,7 @@ getMaterialiv(Face,Pname) ->
 %%  is enabled, the material parameter or parameters specified by  `Mode' , of the material
 %% or materials specified by  `Face' , track the current color at all times. 
 %%
-%%  To enable and disable `?GL_COLOR_MATERIAL', call  {@link gl:enable/1}  and  {@link gl:enable/1} 
-%%  with argument `?GL_COLOR_MATERIAL'. `?GL_COLOR_MATERIAL' is initially disabled.
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glColorMaterial.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glColorMaterial.xml">external</a> documentation.
 -spec colorMaterial(Face, Mode) -> 'ok' when Face :: enum(),Mode :: enum().
 colorMaterial(Face,Mode) ->
   cast(5221, <<Face:?GLenum,Mode:?GLenum>>).
@@ -4645,17 +2214,7 @@ colorMaterial(Face,Mode) ->
 %% position, and a given element is in the   mth row and   nth column of the pixel rectangle,
 %% then pixels whose centers are in the rectangle with corners at 
 %%
-%%  ( xr+n. xfactor,   yr+m. yfactor) 
-%%
-%%  ( xr+(n+1). xfactor,   yr+(m+1). yfactor) 
-%%
-%%  are candidates for replacement. Any pixel whose center lies on the bottom or left edge
-%% of this rectangular region is also modified. 
-%%
-%%  Pixel zoom factors are not limited to positive values. Negative zoom factors reflect
-%% the resulting image about the current raster position. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPixelZoom.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glPixelZoom.xml">external</a> documentation.
 -spec pixelZoom(Xfactor, Yfactor) -> 'ok' when Xfactor :: float(),Yfactor :: float().
 pixelZoom(Xfactor,Yfactor) ->
   cast(5222, <<Xfactor:?GLfloat,Yfactor:?GLfloat>>).
@@ -4669,181 +2228,7 @@ pixelZoom(Xfactor,Yfactor) ->
 %% ,  {@link gl:compressedTexSubImage1D/7} ,  {@link gl:compressedTexSubImage2D/9}  or  {@link gl:compressedTexSubImage1D/7} 
 %% . 
 %%
-%%  `Pname'  is a symbolic constant indicating the parameter to be set, and  `Param' 
-%% is the new value. Six of the twelve storage parameters affect how pixel data is returned
-%% to client memory. They are as follows: 
-%%
-%% `?GL_PACK_SWAP_BYTES':  If true, byte ordering for multibyte color components, depth
-%% components, or stencil indices is reversed. That is, if a four-byte component consists
-%% of bytes  b 0,  b 1,  b 2,  b 3, it is stored in memory as  b 3,  b 2,  b 1,  b 0 if `?GL_PACK_SWAP_BYTES'
-%%  is true. `?GL_PACK_SWAP_BYTES' has no effect on the memory order of components within
-%% a pixel, only on the order of bytes within components or indices. For example, the three
-%% components of a `?GL_RGB' format pixel are always stored with red first, green second,
-%% and blue third, regardless of the value of `?GL_PACK_SWAP_BYTES'. 
-%%
-%% `?GL_PACK_LSB_FIRST':  If true, bits are ordered within a byte from least significant
-%% to most significant; otherwise, the first bit in each byte is the most significant one. 
-%%
-%% `?GL_PACK_ROW_LENGTH':  If greater than 0, `?GL_PACK_ROW_LENGTH' defines the
-%% number of pixels in a row. If the first pixel of a row is placed at location   p in memory,
-%% then the location of the first pixel of the next row is obtained by skipping 
-%%
-%%  k={n  l(a/s) |(s  n  l)/a|  s&gt;= a s&lt; a)
-%%
-%%  components or indices, where   n is the number of components or indices in a pixel,  l
-%% is the number of pixels in a row (`?GL_PACK_ROW_LENGTH' if it is greater than 0,
-%% the   width argument to the pixel routine otherwise),  a is the value of `?GL_PACK_ALIGNMENT'
-%% , and  s is the size, in bytes, of a single component (if   a&lt; s, then it is as if   a=
-%% s). In the case of 1-bit values, the location of the next row is obtained by skipping 
-%%
-%%  k=8  a |(n  l)/(8  a)|
-%%
-%%  components or indices. 
-%%
-%%  The word `component' in this description refers to the nonindex values red, green,
-%% blue, alpha, and depth. Storage format `?GL_RGB', for example, has three components
-%% per pixel: first red, then green, and finally blue. 
-%%
-%% `?GL_PACK_IMAGE_HEIGHT':  If greater than 0, `?GL_PACK_IMAGE_HEIGHT' defines
-%% the number of pixels in an image three-dimensional texture volume, where ``image'' is
-%% defined by all pixels sharing the same third dimension index. If the first pixel of a
-%% row is placed at location   p in memory, then the location of the first pixel of the next
-%% row is obtained by skipping 
-%%
-%%  k={n  l  h(a/s) |(s  n  l  h)/a|  s&gt;= a s&lt; a)
-%%
-%%  components or indices, where   n is the number of components or indices in a pixel,   l
-%% is the number of pixels in a row (`?GL_PACK_ROW_LENGTH' if it is greater than 0,
-%% the  width argument to  {@link gl:texImage3D/10}  otherwise),   h is the number of rows in
-%% a pixel image (`?GL_PACK_IMAGE_HEIGHT' if it is greater than 0, the   height argument
-%% to the  {@link gl:texImage3D/10}  routine otherwise),  a is the value of `?GL_PACK_ALIGNMENT'
-%% , and   s is the size, in bytes, of a single component (if   a&lt; s, then it is as if  
-%% a=s). 
-%%
-%%  The word `component' in this description refers to the nonindex values red, green,
-%% blue, alpha, and depth. Storage format `?GL_RGB', for example, has three components
-%% per pixel: first red, then green, and finally blue. 
-%%
-%% `?GL_PACK_SKIP_PIXELS', `?GL_PACK_SKIP_ROWS', and `?GL_PACK_SKIP_IMAGES'
-%%
-%%  These values are provided as a convenience to the programmer; they provide no functionality
-%% that cannot be duplicated simply by incrementing the pointer passed to  {@link gl:readPixels/7} 
-%% . Setting `?GL_PACK_SKIP_PIXELS' to   i is equivalent to incrementing the pointer
-%% by   i  n components or indices, where   n is the number of components or indices in each
-%% pixel. Setting `?GL_PACK_SKIP_ROWS' to   j is equivalent to incrementing the pointer
-%% by   j  m components or indices, where   m is the number of components or indices per
-%% row, as just computed in the `?GL_PACK_ROW_LENGTH' section. Setting `?GL_PACK_SKIP_IMAGES'
-%%  to   k is equivalent to incrementing the pointer by   k  p, where   p is the number of
-%% components or indices per image, as computed in the `?GL_PACK_IMAGE_HEIGHT' section.
-%% 
-%%
-%% `?GL_PACK_ALIGNMENT':  Specifies the alignment requirements for the start of each
-%% pixel row in memory. The allowable values are 1 (byte-alignment), 2 (rows aligned to even-numbered
-%% bytes), 4 (word-alignment), and 8 (rows start on double-word boundaries). 
-%%
-%%  The other six of the twelve storage parameters affect how pixel data is read from client
-%% memory. These values are significant for  {@link gl:texImage1D/8} ,  {@link gl:texImage2D/9} ,  {@link gl:texImage3D/10} 
-%% ,  {@link gl:texSubImage1D/7} ,  {@link gl:texSubImage1D/7} , and  {@link gl:texSubImage1D/7} 
-%%
-%%  They are as follows: 
-%%
-%% `?GL_UNPACK_SWAP_BYTES':  If true, byte ordering for multibyte color components,
-%% depth components, or stencil indices is reversed. That is, if a four-byte component consists
-%% of bytes  b 0,  b 1,  b 2,  b 3, it is taken from memory as  b 3,  b 2,  b 1,  b 0 if `?GL_UNPACK_SWAP_BYTES'
-%%  is true. `?GL_UNPACK_SWAP_BYTES' has no effect on the memory order of components
-%% within a pixel, only on the order of bytes within components or indices. For example,
-%% the three components of a `?GL_RGB' format pixel are always stored with red first,
-%% green second, and blue third, regardless of the value of `?GL_UNPACK_SWAP_BYTES'. 
-%%
-%% `?GL_UNPACK_LSB_FIRST':  If true, bits are ordered within a byte from least significant
-%% to most significant; otherwise, the first bit in each byte is the most significant one. 
-%%
-%% `?GL_UNPACK_ROW_LENGTH':  If greater than 0, `?GL_UNPACK_ROW_LENGTH' defines
-%% the number of pixels in a row. If the first pixel of a row is placed at location   p in
-%% memory, then the location of the first pixel of the next row is obtained by skipping 
-%%
-%%  k={n  l(a/s) |(s  n  l)/a|  s&gt;= a s&lt; a)
-%%
-%%  components or indices, where   n is the number of components or indices in a pixel,  l
-%% is the number of pixels in a row (`?GL_UNPACK_ROW_LENGTH' if it is greater than 0,
-%% the   width argument to the pixel routine otherwise),  a is the value of `?GL_UNPACK_ALIGNMENT'
-%% , and  s is the size, in bytes, of a single component (if   a&lt; s, then it is as if   a=
-%% s). In the case of 1-bit values, the location of the next row is obtained by skipping 
-%%
-%%  k=8  a |(n  l)/(8  a)|
-%%
-%%  components or indices. 
-%%
-%%  The word `component' in this description refers to the nonindex values red, green,
-%% blue, alpha, and depth. Storage format `?GL_RGB', for example, has three components
-%% per pixel: first red, then green, and finally blue. 
-%%
-%% `?GL_UNPACK_IMAGE_HEIGHT':  If greater than 0, `?GL_UNPACK_IMAGE_HEIGHT' defines
-%% the number of pixels in an image of a three-dimensional texture volume. Where ``image''
-%% is defined by all pixel sharing the same third dimension index. If the first pixel of
-%% a row is placed at location   p in memory, then the location of the first pixel of the
-%% next row is obtained by skipping 
-%%
-%%  k={n  l  h(a/s) |(s  n  l  h)/a|  s&gt;= a s&lt; a)
-%%
-%%  components or indices, where   n is the number of components or indices in a pixel,  l
-%% is the number of pixels in a row (`?GL_UNPACK_ROW_LENGTH' if it is greater than 0,
-%% the   width argument to  {@link gl:texImage3D/10}  otherwise),  h is the number of rows in
-%% an image (`?GL_UNPACK_IMAGE_HEIGHT' if it is greater than 0, the   height argument
-%% to  {@link gl:texImage3D/10}  otherwise),  a is the value of `?GL_UNPACK_ALIGNMENT',
-%% and  s is the size, in bytes, of a single component (if   a&lt; s, then it is as if   a=s).
-%% 
-%%
-%%  The word `component' in this description refers to the nonindex values red, green,
-%% blue, alpha, and depth. Storage format `?GL_RGB', for example, has three components
-%% per pixel: first red, then green, and finally blue. 
-%%
-%% `?GL_UNPACK_SKIP_PIXELS' and `?GL_UNPACK_SKIP_ROWS'
-%%
-%%  These values are provided as a convenience to the programmer; they provide no functionality
-%% that cannot be duplicated by incrementing the pointer passed to  {@link gl:texImage1D/8} ,  {@link gl:texImage2D/9} 
-%% ,  {@link gl:texSubImage1D/7}  or  {@link gl:texSubImage1D/7} . Setting `?GL_UNPACK_SKIP_PIXELS'
-%%  to   i is equivalent to incrementing the pointer by   i  n components or indices, where
-%%   n is the number of components or indices in each pixel. Setting `?GL_UNPACK_SKIP_ROWS'
-%%  to   j is equivalent to incrementing the pointer by   j  k components or indices, where
-%%   k is the number of components or indices per row, as just computed in the `?GL_UNPACK_ROW_LENGTH'
-%%  section. 
-%%
-%% `?GL_UNPACK_ALIGNMENT':  Specifies the alignment requirements for the start of each
-%% pixel row in memory. The allowable values are 1 (byte-alignment), 2 (rows aligned to even-numbered
-%% bytes), 4 (word-alignment), and 8 (rows start on double-word boundaries). 
-%%
-%%  The following table gives the type, initial value, and range of valid values for each
-%% storage parameter that can be set with ``gl:pixelStore''. 
-%%
-%% <table><tbody><tr><td> `Pname' </td><td>` Type '</td><td>` Initial Value '</td>
-%% <td>` Valid Range '</td></tr></tbody><tbody><tr><td>`?GL_PACK_SWAP_BYTES'</td><td>
-%%  boolean </td><td> false </td><td> true or false </td></tr><tr><td>`?GL_PACK_LSB_FIRST'
-%% </td><td> boolean </td><td> false </td><td> true or false </td></tr><tr><td>`?GL_PACK_ROW_LENGTH'
-%% </td><td> integer </td><td> 0 </td><td>[0)</td></tr><tr><td>`?GL_PACK_IMAGE_HEIGHT'</td>
-%% <td> integer </td><td> 0 </td><td>[0)</td></tr><tr><td>`?GL_PACK_SKIP_ROWS'</td><td>
-%% integer </td><td> 0 </td><td>[0)</td></tr><tr><td>`?GL_PACK_SKIP_PIXELS'</td><td> integer
-%% </td><td> 0 </td><td>[0)</td></tr><tr><td>`?GL_PACK_SKIP_IMAGES'</td><td> integer </td><td>
-%%  0 </td><td>[0)</td></tr><tr><td>`?GL_PACK_ALIGNMENT'</td><td> integer </td><td> 4 </td>
-%% <td> 1, 2, 4, or 8 </td></tr><tr><td>`?GL_UNPACK_SWAP_BYTES'</td><td> boolean </td><td>
-%%  false </td><td> true or false </td></tr><tr><td>`?GL_UNPACK_LSB_FIRST'</td><td>
-%% boolean </td><td> false </td><td> true or false </td></tr><tr><td>`?GL_UNPACK_ROW_LENGTH'
-%% </td><td> integer </td><td> 0 </td><td>[0)</td></tr><tr><td>`?GL_UNPACK_IMAGE_HEIGHT'</td>
-%% <td> integer </td><td> 0 </td><td>[0)</td></tr><tr><td>`?GL_UNPACK_SKIP_ROWS'</td><td>
-%% integer </td><td> 0 </td><td>[0)</td></tr><tr><td>`?GL_UNPACK_SKIP_PIXELS'</td><td>
-%% integer </td><td> 0 </td><td>[0)</td></tr><tr><td>`?GL_UNPACK_SKIP_IMAGES'</td><td>
-%% integer </td><td> 0 </td><td>[0)</td></tr><tr><td>`?GL_UNPACK_ALIGNMENT'</td><td> integer
-%% </td><td> 4 </td><td> 1, 2, 4, or 8 </td></tr></tbody></table>
-%%
-%% ``gl:pixelStoref'' can be used to set any pixel store parameter. If the parameter type
-%% is boolean, then if  `Param'  is 0, the parameter is false; otherwise it is set to
-%% true. If  `Pname'  is a integer type parameter,  `Param'  is rounded to the nearest
-%% integer. 
-%%
-%%  Likewise, ``gl:pixelStorei'' can also be used to set any of the pixel store parameters.
-%% Boolean parameters are set to false if  `Param'  is 0 and true otherwise. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPixelStore.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glPixelStore.xhtml">external</a> documentation.
 -spec pixelStoref(Pname, Param) -> 'ok' when Pname :: enum(),Param :: float().
 pixelStoref(Pname,Param) ->
   cast(5223, <<Pname:?GLenum,Param:?GLfloat>>).
@@ -4874,134 +2259,7 @@ pixelStorei(Pname,Param) ->
 %% ) control the unpacking of pixels being read from client memory and the packing of pixels
 %% being written back into client memory. 
 %%
-%%  Pixel transfer operations handle four fundamental pixel types: `color', `color index'
-%% , `depth', and `stencil'. `Color' pixels consist of four floating-point
-%% values with unspecified mantissa and exponent sizes, scaled such that 0 represents zero
-%% intensity and 1 represents full intensity. `Color indices' comprise a single fixed-point
-%% value, with unspecified precision to the right of the binary point. `Depth' pixels
-%% comprise a single floating-point value, with unspecified mantissa and exponent sizes,
-%% scaled such that 0.0 represents the minimum depth buffer value, and 1.0 represents the
-%% maximum depth buffer value. Finally, `stencil' pixels comprise a single fixed-point
-%% value, with unspecified precision to the right of the binary point. 
-%%
-%%  The pixel transfer operations performed on the four basic pixel types are as follows: 
-%%
-%% `Color':  Each of the four color components is multiplied by a scale factor, then
-%% added to a bias factor. That is, the red component is multiplied by `?GL_RED_SCALE',
-%% then added to `?GL_RED_BIAS'; the green component is multiplied by `?GL_GREEN_SCALE'
-%% , then added to `?GL_GREEN_BIAS'; the blue component is multiplied by `?GL_BLUE_SCALE'
-%% , then added to `?GL_BLUE_BIAS'; and the alpha component is multiplied by `?GL_ALPHA_SCALE'
-%% , then added to `?GL_ALPHA_BIAS'. After all four color components are scaled and
-%% biased, each is clamped to the range  [0 1]. All color, scale, and bias values are specified
-%% with ``gl:pixelTransfer''. 
-%%
-%%  If `?GL_MAP_COLOR' is true, each color component is scaled by the size of the corresponding
-%% color-to-color map, then replaced by the contents of that map indexed by the scaled component.
-%% That is, the red component is scaled by `?GL_PIXEL_MAP_R_TO_R_SIZE', then replaced
-%% by the contents of `?GL_PIXEL_MAP_R_TO_R' indexed by itself. The green component
-%% is scaled by `?GL_PIXEL_MAP_G_TO_G_SIZE', then replaced by the contents of `?GL_PIXEL_MAP_G_TO_G'
-%%  indexed by itself. The blue component is scaled by `?GL_PIXEL_MAP_B_TO_B_SIZE',
-%% then replaced by the contents of `?GL_PIXEL_MAP_B_TO_B' indexed by itself. And the
-%% alpha component is scaled by `?GL_PIXEL_MAP_A_TO_A_SIZE', then replaced by the contents
-%% of `?GL_PIXEL_MAP_A_TO_A' indexed by itself. All components taken from the maps are
-%% then clamped to the range  [0 1]. `?GL_MAP_COLOR' is specified with ``gl:pixelTransfer''.
-%% The contents of the various maps are specified with  {@link gl:pixelMapfv/3} . 
-%%
-%%  If the ARB_imaging extension is supported, each of the four color components may be scaled
-%% and biased after transformation by the color matrix. That is, the red component is multiplied
-%% by `?GL_POST_COLOR_MATRIX_RED_SCALE', then added to `?GL_POST_COLOR_MATRIX_RED_BIAS'
-%% ; the green component is multiplied by `?GL_POST_COLOR_MATRIX_GREEN_SCALE', then
-%% added to `?GL_POST_COLOR_MATRIX_GREEN_BIAS'; the blue component is multiplied by `?GL_POST_COLOR_MATRIX_BLUE_SCALE'
-%% , then added to `?GL_POST_COLOR_MATRIX_BLUE_BIAS'; and the alpha component is multiplied
-%% by `?GL_POST_COLOR_MATRIX_ALPHA_SCALE', then added to `?GL_POST_COLOR_MATRIX_ALPHA_BIAS'
-%% . After all four color components are scaled and biased, each is clamped to the range  [0
-%% 1]. 
-%%
-%%  Similarly, if the ARB_imaging extension is supported, each of the four color components
-%% may be scaled and biased after processing by the enabled convolution filter. That is,
-%% the red component is multiplied by `?GL_POST_CONVOLUTION_RED_SCALE', then added to `?GL_POST_CONVOLUTION_RED_BIAS'
-%% ; the green component is multiplied by `?GL_POST_CONVOLUTION_GREEN_SCALE', then added
-%% to `?GL_POST_CONVOLUTION_GREEN_BIAS'; the blue component is multiplied by `?GL_POST_CONVOLUTION_BLUE_SCALE'
-%% , then added to `?GL_POST_CONVOLUTION_BLUE_BIAS'; and the alpha component is multiplied
-%% by `?GL_POST_CONVOLUTION_ALPHA_SCALE', then added to `?GL_POST_CONVOLUTION_ALPHA_BIAS'
-%% . After all four color components are scaled and biased, each is clamped to the range  [0
-%% 1]. 
-%%
-%% `Color index':  Each color index is shifted left by `?GL_INDEX_SHIFT' bits;
-%% any bits beyond the number of fraction bits carried by the fixed-point index are filled
-%% with zeros. If `?GL_INDEX_SHIFT' is negative, the shift is to the right, again zero
-%% filled. Then `?GL_INDEX_OFFSET' is added to the index. `?GL_INDEX_SHIFT' and `?GL_INDEX_OFFSET'
-%%  are specified with ``gl:pixelTransfer''. 
-%%
-%%  From this point, operation diverges depending on the required format of the resulting
-%% pixels. If the resulting pixels are to be written to a color index buffer, or if they
-%% are being read back to client memory in `?GL_COLOR_INDEX' format, the pixels continue
-%% to be treated as indices. If `?GL_MAP_COLOR' is true, each index is masked by   2 n-1
-%% , where   n is `?GL_PIXEL_MAP_I_TO_I_SIZE', then replaced by the contents of `?GL_PIXEL_MAP_I_TO_I'
-%%  indexed by the masked value. `?GL_MAP_COLOR' is specified with ``gl:pixelTransfer''
-%% . The contents of the index map is specified with  {@link gl:pixelMapfv/3} . 
-%%
-%%  If the resulting pixels are to be written to an RGBA color buffer, or if they are read
-%% back to client memory in a format other than `?GL_COLOR_INDEX', the pixels are converted
-%% from indices to colors by referencing the four maps `?GL_PIXEL_MAP_I_TO_R', `?GL_PIXEL_MAP_I_TO_G'
-%% , `?GL_PIXEL_MAP_I_TO_B', and `?GL_PIXEL_MAP_I_TO_A'. Before being dereferenced,
-%% the index is masked by   2 n-1, where   n is `?GL_PIXEL_MAP_I_TO_R_SIZE' for the
-%% red map, `?GL_PIXEL_MAP_I_TO_G_SIZE' for the green map, `?GL_PIXEL_MAP_I_TO_B_SIZE'
-%%  for the blue map, and `?GL_PIXEL_MAP_I_TO_A_SIZE' for the alpha map. All components
-%% taken from the maps are then clamped to the range  [0 1]. The contents of the four maps is
-%% specified with  {@link gl:pixelMapfv/3} . 
-%%
-%% `Depth':  Each depth value is multiplied by `?GL_DEPTH_SCALE', added to `?GL_DEPTH_BIAS'
-%% , then clamped to the range  [0 1]. 
-%%
-%% `Stencil':  Each index is shifted `?GL_INDEX_SHIFT' bits just as a color index
-%% is, then added to `?GL_INDEX_OFFSET'. If `?GL_MAP_STENCIL' is true, each index
-%% is masked by   2 n-1, where   n is `?GL_PIXEL_MAP_S_TO_S_SIZE', then replaced by
-%% the contents of `?GL_PIXEL_MAP_S_TO_S' indexed by the masked value. 
-%%
-%%  The following table gives the type, initial value, and range of valid values for each
-%% of the pixel transfer parameters that are set with ``gl:pixelTransfer''. 
-%%
-%% <table><tbody><tr><td> `Pname' </td><td>` Type '</td><td>` Initial Value '</td>
-%% <td>` Valid Range '</td></tr></tbody><tbody><tr><td>`?GL_MAP_COLOR'</td><td>
-%% boolean </td><td> false </td><td> true/false </td></tr><tr><td>`?GL_MAP_STENCIL'</td>
-%% <td> boolean </td><td> false </td><td> true/false </td></tr><tr><td>`?GL_INDEX_SHIFT'</td>
-%% <td> integer </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_INDEX_OFFSET'</td><td> integer
-%% </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_RED_SCALE'</td><td> float </td><td> 1 </td>
-%% <td>(-)</td></tr><tr><td>`?GL_GREEN_SCALE'</td><td> float </td><td> 1 </td><td>(-)</td></tr>
-%% <tr><td>`?GL_BLUE_SCALE'</td><td> float </td><td> 1 </td><td>(-)</td></tr><tr><td>`?GL_ALPHA_SCALE'
-%% </td><td> float </td><td> 1 </td><td>(-)</td></tr><tr><td>`?GL_DEPTH_SCALE'</td><td>
-%% float </td><td> 1 </td><td>(-)</td></tr><tr><td>`?GL_RED_BIAS'</td><td> float </td><td>
-%% 0 </td><td>(-)</td></tr><tr><td>`?GL_GREEN_BIAS'</td><td> float </td><td> 0 </td><td>(-)</td>
-%% </tr><tr><td>`?GL_BLUE_BIAS'</td><td> float </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_ALPHA_BIAS'
-%% </td><td> float </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_DEPTH_BIAS'</td><td>
-%% float </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_POST_COLOR_MATRIX_RED_SCALE'</td><td>
-%%  float </td><td> 1 </td><td>(-)</td></tr><tr><td>`?GL_POST_COLOR_MATRIX_GREEN_SCALE'</td>
-%% <td> float </td><td> 1 </td><td>(-)</td></tr><tr><td>`?GL_POST_COLOR_MATRIX_BLUE_SCALE'</td>
-%% <td> float </td><td> 1 </td><td>(-)</td></tr><tr><td>`?GL_POST_COLOR_MATRIX_ALPHA_SCALE'</td>
-%% <td> float </td><td> 1 </td><td>(-)</td></tr><tr><td>`?GL_POST_COLOR_MATRIX_RED_BIAS'</td>
-%% <td> float </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_POST_COLOR_MATRIX_GREEN_BIAS'</td>
-%% <td> float </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_POST_COLOR_MATRIX_BLUE_BIAS'</td>
-%% <td> float </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_POST_COLOR_MATRIX_ALPHA_BIAS'</td>
-%% <td> float </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_POST_CONVOLUTION_RED_SCALE'</td>
-%% <td> float </td><td> 1 </td><td>(-)</td></tr><tr><td>`?GL_POST_CONVOLUTION_GREEN_SCALE'</td>
-%% <td> float </td><td> 1 </td><td>(-)</td></tr><tr><td>`?GL_POST_CONVOLUTION_BLUE_SCALE'</td>
-%% <td> float </td><td> 1 </td><td>(-)</td></tr><tr><td>`?GL_POST_CONVOLUTION_ALPHA_SCALE'</td>
-%% <td> float </td><td> 1 </td><td>(-)</td></tr><tr><td>`?GL_POST_CONVOLUTION_RED_BIAS'</td>
-%% <td> float </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_POST_CONVOLUTION_GREEN_BIAS'</td>
-%% <td> float </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_POST_CONVOLUTION_BLUE_BIAS'</td>
-%% <td> float </td><td> 0 </td><td>(-)</td></tr><tr><td>`?GL_POST_CONVOLUTION_ALPHA_BIAS'</td>
-%% <td> float </td><td> 0 </td><td>(-)</td></tr></tbody></table>
-%%
-%% ``gl:pixelTransferf'' can be used to set any pixel transfer parameter. If the parameter
-%% type is boolean, 0 implies false and any other value implies true. If  `Pname'  is
-%% an integer parameter,  `Param'  is rounded to the nearest integer. 
-%%
-%%  Likewise, ``gl:pixelTransferi'' can be used to set any of the pixel transfer parameters.
-%% Boolean parameters are set to false if  `Param'  is 0 and to true otherwise.  `Param' 
-%%  is converted to floating point before being assigned to real-valued parameters. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPixelTransfer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glPixelTransfer.xml">external</a> documentation.
 -spec pixelTransferf(Pname, Param) -> 'ok' when Pname :: enum(),Param :: float().
 pixelTransferf(Pname,Param) ->
   cast(5225, <<Pname:?GLenum,Param:?GLfloat>>).
@@ -5025,72 +2283,7 @@ pixelTransferi(Pname,Param) ->
 %% page, and partly in the reference pages for the pixel and texture image commands. Only
 %% the specification of the maps is described in this reference page. 
 %%
-%%  `Map'  is a symbolic map name, indicating one of ten maps to set.  `Mapsize'  specifies
-%% the number of entries in the map, and  `Values'  is a pointer to an array of  `Mapsize' 
-%%  map values. 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a pixel transfer map is specified,  `Values'  is
-%% treated as a byte offset into the buffer object's data store. 
-%%
-%%  The ten maps are as follows: 
-%%
-%% `?GL_PIXEL_MAP_I_TO_I':  Maps color indices to color indices. 
-%%
-%% `?GL_PIXEL_MAP_S_TO_S':  Maps stencil indices to stencil indices. 
-%%
-%% `?GL_PIXEL_MAP_I_TO_R':  Maps color indices to red components. 
-%%
-%% `?GL_PIXEL_MAP_I_TO_G':  Maps color indices to green components. 
-%%
-%% `?GL_PIXEL_MAP_I_TO_B':  Maps color indices to blue components. 
-%%
-%% `?GL_PIXEL_MAP_I_TO_A':  Maps color indices to alpha components. 
-%%
-%% `?GL_PIXEL_MAP_R_TO_R':  Maps red components to red components. 
-%%
-%% `?GL_PIXEL_MAP_G_TO_G':  Maps green components to green components. 
-%%
-%% `?GL_PIXEL_MAP_B_TO_B':  Maps blue components to blue components. 
-%%
-%% `?GL_PIXEL_MAP_A_TO_A':  Maps alpha components to alpha components. 
-%%
-%%  The entries in a map can be specified as single-precision floating-point numbers, unsigned
-%% short integers, or unsigned int integers. Maps that store color component values (all
-%% but `?GL_PIXEL_MAP_I_TO_I' and `?GL_PIXEL_MAP_S_TO_S') retain their values in
-%% floating-point format, with unspecified mantissa and exponent sizes. Floating-point values
-%% specified by ``gl:pixelMapfv'' are converted directly to the internal floating-point
-%% format of these maps, then clamped to the range [0,1]. Unsigned integer values specified
-%% by ``gl:pixelMapusv'' and ``gl:pixelMapuiv'' are converted linearly such that the
-%% largest representable integer maps to 1.0, and 0 maps to 0.0. 
-%%
-%%  Maps that store indices, `?GL_PIXEL_MAP_I_TO_I' and `?GL_PIXEL_MAP_S_TO_S',
-%% retain their values in fixed-point format, with an unspecified number of bits to the right
-%% of the binary point. Floating-point values specified by ``gl:pixelMapfv'' are converted
-%% directly to the internal fixed-point format of these maps. Unsigned integer values specified
-%% by ``gl:pixelMapusv'' and ``gl:pixelMapuiv'' specify integer values, with all 0's
-%% to the right of the binary point. 
-%%
-%%  The following table shows the initial sizes and values for each of the maps. Maps that
-%% are indexed by either color or stencil indices must have  `Mapsize'  =   2 n for some
-%%   n or the results are undefined. The maximum allowable size for each map depends on the
-%% implementation and can be determined by calling  {@link gl:getBooleanv/1}  with argument `?GL_MAX_PIXEL_MAP_TABLE'
-%% . The single maximum applies to all maps; it is at least 32. <table><tbody><tr><td> `Map' 
-%% </td><td>` Lookup Index '</td><td>` Lookup Value '</td><td>` Initial Size '</td>
-%% <td>` Initial Value '</td></tr></tbody><tbody><tr><td>`?GL_PIXEL_MAP_I_TO_I'</td>
-%% <td> color index </td><td> color index </td><td> 1 </td><td> 0 </td></tr><tr><td>`?GL_PIXEL_MAP_S_TO_S'
-%% </td><td> stencil index  </td><td> stencil index  </td><td> 1 </td><td> 0 </td></tr><tr><td>
-%% `?GL_PIXEL_MAP_I_TO_R'</td><td> color index  </td><td> R </td><td> 1 </td><td> 0 </td>
-%% </tr><tr><td>`?GL_PIXEL_MAP_I_TO_G'</td><td> color index  </td><td> G </td><td> 1 </td>
-%% <td> 0 </td></tr><tr><td>`?GL_PIXEL_MAP_I_TO_B'</td><td> color index </td><td> B </td>
-%% <td> 1 </td><td> 0 </td></tr><tr><td>`?GL_PIXEL_MAP_I_TO_A'</td><td> color index </td>
-%% <td> A </td><td> 1 </td><td> 0 </td></tr><tr><td>`?GL_PIXEL_MAP_R_TO_R'</td><td> R </td>
-%% <td> R </td><td> 1 </td><td> 0 </td></tr><tr><td>`?GL_PIXEL_MAP_G_TO_G'</td><td> G </td>
-%% <td> G </td><td> 1 </td><td> 0 </td></tr><tr><td>`?GL_PIXEL_MAP_B_TO_B'</td><td> B </td>
-%% <td> B </td><td> 1 </td><td> 0 </td></tr><tr><td>`?GL_PIXEL_MAP_A_TO_A'</td><td> A </td>
-%% <td> A </td><td> 1 </td><td> 0 </td></tr></tbody></table>
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPixelMap.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glPixelMap.xml">external</a> documentation.
 -spec pixelMapfv(Map, Mapsize, Values) -> 'ok' when Map :: enum(),Mapsize :: integer(),Values :: binary().
 pixelMapfv(Map,Mapsize,Values) ->
   send_bin(Values),
@@ -5121,19 +2314,7 @@ pixelMapusv(Map,Mapsize,Values) ->
 %% , and  {@link gl:copyTexSubImage3D/9} . to map color indices, stencil indices, color components,
 %% and depth components to other values. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_PACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a pixel map is requested,  `Data'  is treated as
-%% a byte offset into the buffer object's data store. 
-%%
-%%  Unsigned integer values, if requested, are linearly mapped from the internal fixed or
-%% floating-point representation such that 1.0 maps to the largest representable integer
-%% value, and 0.0 maps to 0. Return unsigned integer values are undefined if the map value
-%% was not in the range [0,1]. 
-%%
-%%  To determine the required size of  `Map' , call  {@link gl:getBooleanv/1}  with the appropriate
-%% symbolic constant. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetPixelMap.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetPixelMap.xml">external</a> documentation.
 -spec getPixelMapfv(Map, Values) -> 'ok' when Map :: enum(),Values :: mem().
 getPixelMapfv(Map,Values) ->
   send_bin(Values),
@@ -5160,42 +2341,7 @@ getPixelMapusv(Map,Values) ->
 %% using the current raster color or index. Frame buffer pixels corresponding to 0's in the
 %% bitmap are not modified. 
 %%
-%% ``gl:bitmap'' takes seven arguments. The first pair specifies the width and height of
-%% the bitmap image. The second pair specifies the location of the bitmap origin relative
-%% to the lower left corner of the bitmap image. The third pair of arguments specifies `x'
-%%  and `y' offsets to be added to the current raster position after the bitmap has
-%% been drawn. The final argument is a pointer to the bitmap image itself. 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a bitmap image is specified,  `Bitmap'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  The bitmap image is interpreted like image data for the  {@link gl:drawPixels/5}  command,
-%% with  `Width'  and  `Height'  corresponding to the width and height arguments of
-%% that command, and with `type' set to `?GL_BITMAP' and `format' set to `?GL_COLOR_INDEX'
-%% . Modes specified using  {@link gl:pixelStoref/2}  affect the interpretation of bitmap image
-%% data; modes specified using  {@link gl:pixelTransferf/2}  do not. 
-%%
-%%  If the current raster position is invalid, ``gl:bitmap'' is ignored. Otherwise, the
-%% lower left corner of the bitmap image is positioned at the window coordinates 
-%%
-%%  x w=|x r-x o|
-%%
-%%  y w=|y r-y o|
-%%
-%%  where  (x r y r) is the raster position and  (x o y o) is the bitmap origin. Fragments are then generated
-%% for each pixel corresponding to a 1 (one) in the bitmap image. These fragments are generated
-%% using the current raster `z' coordinate, color or color index, and current raster
-%% texture coordinates. They are then treated just as if they had been generated by a point,
-%% line, or polygon, including texture mapping, fogging, and all per-fragment operations
-%% such as alpha and depth testing. 
-%%
-%%  After the bitmap has been drawn, the `x' and `y' coordinates of the current
-%% raster position are offset by  `Xmove'  and  `Ymove' . No change is made to the `z'
-%%  coordinate of the current raster position, or to the current raster color, texture coordinates,
-%% or index. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBitmap.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glBitmap.xml">external</a> documentation.
 -spec bitmap(Width, Height, Xorig, Yorig, Xmove, Ymove, Bitmap) -> 'ok' when Width :: integer(),Height :: integer(),Xorig :: float(),Yorig :: float(),Xmove :: float(),Ymove :: float(),Bitmap :: offset()|mem().
 bitmap(Width,Height,Xorig,Yorig,Xmove,Ymove,Bitmap) when  is_integer(Bitmap) ->
   cast(5233, <<Width:?GLsizei,Height:?GLsizei,Xorig:?GLfloat,Yorig:?GLfloat,Xmove:?GLfloat,Ymove:?GLfloat,Bitmap:?GLuint>>);
@@ -5212,91 +2358,7 @@ bitmap(Width,Height,Xorig,Yorig,Xmove,Ymove,Bitmap) ->
 %% This reference page describes the effects on ``gl:readPixels'' of most, but not all
 %% of the parameters specified by these three commands. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_PACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a block of pixels is requested,  `Data'  is treated
-%% as a byte offset into the buffer object's data store rather than a pointer to client memory.
-%% 
-%%
-%% ``gl:readPixels'' returns values from each pixel with lower left corner at (x+i y+j) for   0&lt;=
-%%  i&lt; width and  0&lt;= j&lt; height. This pixel is said to be the   ith pixel in the  
-%% jth row. Pixels are returned in row order from the lowest to the highest row, left to
-%% right in each row. 
-%%
-%%  `Format'  specifies the format for the returned pixel values; accepted values are: 
-%%
-%% `?GL_STENCIL_INDEX':  Stencil values are read from the stencil buffer. Each index
-%% is converted to fixed point, shifted left or right depending on the value and sign of `?GL_INDEX_SHIFT'
-%% , and added to `?GL_INDEX_OFFSET'. If `?GL_MAP_STENCIL' is `?GL_TRUE',
-%% indices are replaced by their mappings in the table `?GL_PIXEL_MAP_S_TO_S'. 
-%%
-%% `?GL_DEPTH_COMPONENT':  Depth values are read from the depth buffer. Each component
-%% is converted to floating point such that the minimum depth value maps to 0 and the maximum
-%% value maps to 1. Each component is then multiplied by `?GL_DEPTH_SCALE', added to `?GL_DEPTH_BIAS'
-%% , and finally clamped to the range  [0 1]. 
-%%
-%% `?GL_DEPTH_STENCIL':  Values are taken from both the depth and stencil buffers. The  `Type' 
-%%  parameter must be `?GL_UNSIGNED_INT_24_8' or `?GL_FLOAT_32_UNSIGNED_INT_24_8_REV'
-%% . 
-%%
-%% `?GL_RED'
-%%
-%% `?GL_GREEN'
-%%
-%% `?GL_BLUE'
-%%
-%% `?GL_RGB'
-%%
-%% `?GL_BGR'
-%%
-%% `?GL_RGBA'
-%%
-%% `?GL_BGRA':  Finally, the indices or components are converted to the proper format,
-%% as specified by  `Type' . If  `Format'  is `?GL_STENCIL_INDEX' and  `Type' 
-%% is not `?GL_FLOAT', each index is masked with the mask value given in the following
-%% table. If  `Type'  is `?GL_FLOAT', then each integer index is converted to single-precision
-%% floating-point format. 
-%%
-%%  If  `Format'  is `?GL_RED', `?GL_GREEN', `?GL_BLUE', `?GL_RGB', `?GL_BGR'
-%% , `?GL_RGBA', or `?GL_BGRA' and  `Type'  is not `?GL_FLOAT', each component
-%% is multiplied by the multiplier shown in the following table. If type is `?GL_FLOAT',
-%% then each component is passed as is (or converted to the client's single-precision floating-point
-%% format if it is different from the one used by the GL). 
-%%
-%% <table><tbody><tr><td> `Type' </td><td>` Index Mask '</td><td>` Component Conversion '
-%% </td></tr></tbody><tbody><tr><td>`?GL_UNSIGNED_BYTE'</td><td> 2 8-1</td><td>(2 8-1)  c</td></tr>
-%% <tr><td>`?GL_BYTE'</td><td> 2 7-1</td><td>((2 8-1)  c-1)/2</td></tr><tr><td>`?GL_UNSIGNED_SHORT'
-%% </td><td> 2 16-1</td><td>(2 16-1)  c</td></tr><tr><td>`?GL_SHORT'</td><td> 2 15-1</td><td>((2
-%% 16-1) 
-%% c-1)/2</td>
-%% </tr><tr><td>`?GL_UNSIGNED_INT'</td><td> 2 32-1</td><td>(2 32-1)  c</td></tr><tr><td>`?GL_INT'
-%% </td><td> 2 31-1</td><td>((2 32-1)  c-1)/2</td></tr><tr><td>`?GL_HALF_FLOAT'</td><td> none </td><td>
-%%  c</td></tr><tr><td>`?GL_FLOAT'</td><td> none </td><td> c</td></tr><tr><td>`?GL_UNSIGNED_BYTE_3_3_2'
-%% </td><td> 2 N-1</td><td>(2 N-1)  c</td></tr><tr><td>`?GL_UNSIGNED_BYTE_2_3_3_REV'</td><td>
-%% 2 N-1</td><td>(2 N-1)  c</td></tr><tr><td>`?GL_UNSIGNED_SHORT_5_6_5'</td><td> 2 N-1</td><td>
-%% (2 N-1)  c</td></tr><tr><td>`?GL_UNSIGNED_SHORT_5_6_5_REV'</td><td> 2 N-1</td><td>(2 N-1)  c</td></tr>
-%% <tr><td>`?GL_UNSIGNED_SHORT_4_4_4_4'</td><td> 2 N-1</td><td>(2 N-1)  c</td></tr><tr><td>`?GL_UNSIGNED_SHORT_4_4_4_4_REV'
-%% </td><td> 2 N-1</td><td>(2 N-1)  c</td></tr><tr><td>`?GL_UNSIGNED_SHORT_5_5_5_1'</td><td> 2
-%% N-1</td><td>(2 N-1)  c</td></tr><tr><td>`?GL_UNSIGNED_SHORT_1_5_5_5_REV'</td><td> 2 N-1</td>
-%% <td>(2 N-1)  c</td></tr><tr><td>`?GL_UNSIGNED_INT_8_8_8_8'</td><td> 2 N-1</td><td>(2 N-1)  c</td></tr>
-%% <tr><td>`?GL_UNSIGNED_INT_8_8_8_8_REV'</td><td> 2 N-1</td><td>(2 N-1)  c</td></tr><tr><td>`?GL_UNSIGNED_INT_10_10_10_2'
-%% </td><td> 2 N-1</td><td>(2 N-1)  c</td></tr><tr><td>`?GL_UNSIGNED_INT_2_10_10_10_REV'</td><td>
-%%  2 N-1</td><td>(2 N-1)  c</td></tr><tr><td>`?GL_UNSIGNED_INT_24_8'</td><td> 2 N-1</td><td>(2
-%% N-1) 
-%% c</td></tr><tr><td>`?GL_UNSIGNED_INT_10F_11F_11F_REV'</td><td> -- </td><td> Special </td>
-%% </tr><tr><td>`?GL_UNSIGNED_INT_5_9_9_9_REV'</td><td> -- </td><td> Special </td></tr><tr>
-%% <td>`?GL_FLOAT_32_UNSIGNED_INT_24_8_REV'</td><td> none </td><td> c (Depth Only) </td>
-%% </tr></tbody></table>
-%%
-%%  Return values are placed in memory as follows. If  `Format'  is `?GL_STENCIL_INDEX'
-%% , `?GL_DEPTH_COMPONENT', `?GL_RED', `?GL_GREEN', or `?GL_BLUE', a
-%% single value is returned and the data for the   ith pixel in the   jth row is placed in
-%% location  (j)  width+i. `?GL_RGB' and `?GL_BGR' return three values, `?GL_RGBA'
-%%  and `?GL_BGRA' return four values for each pixel, with all values corresponding
-%% to a single pixel occupying contiguous space in  `Data' . Storage parameters set by  {@link gl:pixelStoref/2} 
-%% , such as `?GL_PACK_LSB_FIRST' and `?GL_PACK_SWAP_BYTES', affect the way that
-%% data is written into memory. See  {@link gl:pixelStoref/2}  for a description. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glReadPixels.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glReadPixels.xhtml">external</a> documentation.
 -spec readPixels(X, Y, Width, Height, Format, Type, Pixels) -> 'ok' when X :: integer(),Y :: integer(),Width :: integer(),Height :: integer(),Format :: enum(),Type :: enum(),Pixels :: mem().
 readPixels(X,Y,Width,Height,Format,Type,Pixels) ->
   send_bin(Pixels),
@@ -5311,237 +2373,7 @@ readPixels(X,Y,Width,Height,Format,Type,Pixels) ->
 %% position is valid, and  {@link gl:getBooleanv/1}  with argument `?GL_CURRENT_RASTER_POSITION'
 %% to query the raster position. 
 %%
-%%  Several parameters define the encoding of pixel data in memory and control the processing
-%% of the pixel data before it is placed in the frame buffer. These parameters are set with
-%% four commands:  {@link gl:pixelStoref/2} ,  {@link gl:pixelTransferf/2} ,  {@link gl:pixelMapfv/3} ,
-%% and  {@link gl:pixelZoom/2} . This reference page describes the effects on ``gl:drawPixels''
-%%  of many, but not all, of the parameters specified by these four commands. 
-%%
-%%  Data is read from  `Data'  as a sequence of signed or unsigned bytes, signed or unsigned
-%% shorts, signed or unsigned integers, or single-precision floating-point values, depending
-%% on  `Type' . When  `Type'  is one of `?GL_UNSIGNED_BYTE', `?GL_BYTE', `?GL_UNSIGNED_SHORT'
-%% , `?GL_SHORT', `?GL_UNSIGNED_INT', `?GL_INT', or `?GL_FLOAT' each
-%% of these bytes, shorts, integers, or floating-point values is interpreted as one color
-%% or depth component, or one index, depending on  `Format' . When  `Type'  is one of `?GL_UNSIGNED_BYTE_3_3_2'
-%% , `?GL_UNSIGNED_SHORT_5_6_5', `?GL_UNSIGNED_SHORT_4_4_4_4', `?GL_UNSIGNED_SHORT_5_5_5_1'
-%% , `?GL_UNSIGNED_INT_8_8_8_8', or `?GL_UNSIGNED_INT_10_10_10_2', each unsigned
-%% value is interpreted as containing all the components for a single pixel, with the color
-%% components arranged according to  `Format' . When  `Type'  is one of `?GL_UNSIGNED_BYTE_2_3_3_REV'
-%% , `?GL_UNSIGNED_SHORT_5_6_5_REV', `?GL_UNSIGNED_SHORT_4_4_4_4_REV', `?GL_UNSIGNED_SHORT_1_5_5_5_REV'
-%% , `?GL_UNSIGNED_INT_8_8_8_8_REV', or `?GL_UNSIGNED_INT_2_10_10_10_REV', each
-%% unsigned value is interpreted as containing all color components, specified by  `Format' 
-%% , for a single pixel in a reversed order. Indices are always treated individually. Color
-%% components are treated as groups of one, two, three, or four values, again based on  `Format' 
-%% . Both individual indices and groups of components are referred to as pixels. If  `Type' 
-%%  is `?GL_BITMAP', the data must be unsigned bytes, and  `Format'  must be either `?GL_COLOR_INDEX'
-%%  or `?GL_STENCIL_INDEX'. Each unsigned byte is treated as eight 1-bit pixels, with
-%% bit ordering determined by `?GL_UNPACK_LSB_FIRST' (see  {@link gl:pixelStoref/2} ). 
-%%
-%%  width×height pixels are read from memory, starting at location  `Data' . By default,
-%% these pixels are taken from adjacent memory locations, except that after all  `Width' 
-%% pixels are read, the read pointer is advanced to the next four-byte boundary. The four-byte
-%% row alignment is specified by  {@link gl:pixelStoref/2}  with argument `?GL_UNPACK_ALIGNMENT'
-%% , and it can be set to one, two, four, or eight bytes. Other pixel store parameters specify
-%% different read pointer advancements, both before the first pixel is read and after all  `Width' 
-%%  pixels are read. See the  {@link gl:pixelStoref/2}  reference page for details on these options.
-%% 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a block of pixels is specified,  `Data'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  The   width×height pixels that are read from memory are each operated on in the same
-%% way, based on the values of several parameters specified by  {@link gl:pixelTransferf/2} 
-%% and  {@link gl:pixelMapfv/3} . The details of these operations, as well as the target buffer
-%% into which the pixels are drawn, are specific to the format of the pixels, as specified
-%% by  `Format' .  `Format'  can assume one of 13 symbolic values: 
-%%
-%% `?GL_COLOR_INDEX':  Each pixel is a single value, a color index. It is converted
-%% to fixed-point format, with an unspecified number of bits to the right of the binary point,
-%% regardless of the memory data type. Floating-point values convert to true fixed-point
-%% values. Signed and unsigned integer data is converted with all fraction bits set to 0.
-%% Bitmap data convert to either 0 or 1. 
-%%
-%%  Each fixed-point index is then shifted left by `?GL_INDEX_SHIFT' bits and added to `?GL_INDEX_OFFSET'
-%% . If `?GL_INDEX_SHIFT' is negative, the shift is to the right. In either case, zero
-%% bits fill otherwise unspecified bit locations in the result. 
-%%
-%%  If the GL is in RGBA mode, the resulting index is converted to an RGBA pixel with the
-%% help of the `?GL_PIXEL_MAP_I_TO_R', `?GL_PIXEL_MAP_I_TO_G', `?GL_PIXEL_MAP_I_TO_B'
-%% , and `?GL_PIXEL_MAP_I_TO_A' tables. If the GL is in color index mode, and if `?GL_MAP_COLOR'
-%%  is true, the index is replaced with the value that it references in lookup table `?GL_PIXEL_MAP_I_TO_I'
-%% . Whether the lookup replacement of the index is done or not, the integer part of the
-%% index is then ANDed with   2 b-1, where   b is the number of bits in a color index buffer.
-%% 
-%%
-%%  The GL then converts the resulting indices or RGBA colors to fragments by attaching the
-%% current raster position `z' coordinate and texture coordinates to each pixel, then
-%% assigning   x and   y window coordinates to the   nth fragment such that  x n=x r+n% width
-%% 
-%%
-%%  y n=y r+|n/width|
-%%
-%%  where  (x r y r) is the current raster position. These pixel fragments are then treated just like
-%% the fragments generated by rasterizing points, lines, or polygons. Texture mapping, fog,
-%% and all the fragment operations are applied before the fragments are written to the frame
-%% buffer. 
-%%
-%% `?GL_STENCIL_INDEX':  Each pixel is a single value, a stencil index. It is converted
-%% to fixed-point format, with an unspecified number of bits to the right of the binary point,
-%% regardless of the memory data type. Floating-point values convert to true fixed-point
-%% values. Signed and unsigned integer data is converted with all fraction bits set to 0.
-%% Bitmap data convert to either 0 or 1. 
-%%
-%%  Each fixed-point index is then shifted left by `?GL_INDEX_SHIFT' bits, and added
-%% to `?GL_INDEX_OFFSET'. If `?GL_INDEX_SHIFT' is negative, the shift is to the
-%% right. In either case, zero bits fill otherwise unspecified bit locations in the result.
-%% If `?GL_MAP_STENCIL' is true, the index is replaced with the value that it references
-%% in lookup table `?GL_PIXEL_MAP_S_TO_S'. Whether the lookup replacement of the index
-%% is done or not, the integer part of the index is then ANDed with   2 b-1, where   b is
-%% the number of bits in the stencil buffer. The resulting stencil indices are then written
-%% to the stencil buffer such that the   nth index is written to location 
-%%
-%%  x n=x r+n% width
-%%
-%%  y n=y r+|n/width|
-%%
-%%  where  (x r y r) is the current raster position. Only the pixel ownership test, the scissor test,
-%% and the stencil writemask affect these write operations. 
-%%
-%% `?GL_DEPTH_COMPONENT':  Each pixel is a single-depth component. Floating-point data
-%% is converted directly to an internal floating-point format with unspecified precision.
-%% Signed integer data is mapped linearly to the internal floating-point format such that
-%% the most positive representable integer value maps to 1.0, and the most negative representable
-%% value maps to   -1.0. Unsigned integer data is mapped similarly: the largest integer value
-%% maps to 1.0, and 0 maps to 0.0. The resulting floating-point depth value is then multiplied
-%% by `?GL_DEPTH_SCALE' and added to `?GL_DEPTH_BIAS'. The result is clamped to
-%% the range  [0 1]. 
-%%
-%%  The GL then converts the resulting depth components to fragments by attaching the current
-%% raster position color or color index and texture coordinates to each pixel, then assigning
-%%   x and   y window coordinates to the   nth fragment such that 
-%%
-%%  x n=x r+n% width
-%%
-%%  y n=y r+|n/width|
-%%
-%%  where  (x r y r) is the current raster position. These pixel fragments are then treated just like
-%% the fragments generated by rasterizing points, lines, or polygons. Texture mapping, fog,
-%% and all the fragment operations are applied before the fragments are written to the frame
-%% buffer. 
-%%
-%% `?GL_RGBA'
-%%
-%% `?GL_BGRA':  Each pixel is a four-component group: For `?GL_RGBA', the red component
-%% is first, followed by green, followed by blue, followed by alpha; for `?GL_BGRA'
-%% the order is blue, green, red and then alpha. Floating-point values are converted directly
-%% to an internal floating-point format with unspecified precision. Signed integer values
-%% are mapped linearly to the internal floating-point format such that the most positive
-%% representable integer value maps to 1.0, and the most negative representable value maps
-%% to   -1.0. (Note that this mapping does not convert 0 precisely to 0.0.) Unsigned integer
-%% data is mapped similarly: The largest integer value maps to 1.0, and 0 maps to 0.0. The
-%% resulting floating-point color values are then multiplied by `?GL_c_SCALE' and added
-%% to `?GL_c_BIAS', where `c' is RED, GREEN, BLUE, and ALPHA for the respective
-%% color components. The results are clamped to the range  [0 1]. 
-%%
-%%  If `?GL_MAP_COLOR' is true, each color component is scaled by the size of lookup
-%% table `?GL_PIXEL_MAP_c_TO_c', then replaced by the value that it references in that
-%% table. `c' is R, G, B, or A respectively. 
-%%
-%%  The GL then converts the resulting RGBA colors to fragments by attaching the current
-%% raster position `z' coordinate and texture coordinates to each pixel, then assigning
-%%   x and   y window coordinates to the   nth fragment such that 
-%%
-%%  x n=x r+n% width
-%%
-%%  y n=y r+|n/width|
-%%
-%%  where  (x r y r) is the current raster position. These pixel fragments are then treated just like
-%% the fragments generated by rasterizing points, lines, or polygons. Texture mapping, fog,
-%% and all the fragment operations are applied before the fragments are written to the frame
-%% buffer. 
-%%
-%% `?GL_RED':  Each pixel is a single red component. This component is converted to
-%% the internal floating-point format in the same way the red component of an RGBA pixel
-%% is. It is then converted to an RGBA pixel with green and blue set to 0, and alpha set
-%% to 1. After this conversion, the pixel is treated as if it had been read as an RGBA pixel.
-%% 
-%%
-%% `?GL_GREEN':  Each pixel is a single green component. This component is converted
-%% to the internal floating-point format in the same way the green component of an RGBA pixel
-%% is. It is then converted to an RGBA pixel with red and blue set to 0, and alpha set to
-%% 1. After this conversion, the pixel is treated as if it had been read as an RGBA pixel. 
-%%
-%% `?GL_BLUE':  Each pixel is a single blue component. This component is converted to
-%% the internal floating-point format in the same way the blue component of an RGBA pixel
-%% is. It is then converted to an RGBA pixel with red and green set to 0, and alpha set to
-%% 1. After this conversion, the pixel is treated as if it had been read as an RGBA pixel. 
-%%
-%% `?GL_ALPHA':  Each pixel is a single alpha component. This component is converted
-%% to the internal floating-point format in the same way the alpha component of an RGBA pixel
-%% is. It is then converted to an RGBA pixel with red, green, and blue set to 0. After this
-%% conversion, the pixel is treated as if it had been read as an RGBA pixel. 
-%%
-%% `?GL_RGB'
-%%
-%% `?GL_BGR':  Each pixel is a three-component group: red first, followed by green,
-%% followed by blue; for `?GL_BGR', the first component is blue, followed by green and
-%% then red. Each component is converted to the internal floating-point format in the same
-%% way the red, green, and blue components of an RGBA pixel are. The color triple is converted
-%% to an RGBA pixel with alpha set to 1. After this conversion, the pixel is treated as if
-%% it had been read as an RGBA pixel. 
-%%
-%% `?GL_LUMINANCE':  Each pixel is a single luminance component. This component is converted
-%% to the internal floating-point format in the same way the red component of an RGBA pixel
-%% is. It is then converted to an RGBA pixel with red, green, and blue set to the converted
-%% luminance value, and alpha set to 1. After this conversion, the pixel is treated as if
-%% it had been read as an RGBA pixel. 
-%%
-%% `?GL_LUMINANCE_ALPHA':  Each pixel is a two-component group: luminance first, followed
-%% by alpha. The two components are converted to the internal floating-point format in the
-%% same way the red component of an RGBA pixel is. They are then converted to an RGBA pixel
-%% with red, green, and blue set to the converted luminance value, and alpha set to the converted
-%% alpha value. After this conversion, the pixel is treated as if it had been read as an
-%% RGBA pixel.  
-%%
-%%  The following table summarizes the meaning of the valid constants for the `type'
-%% parameter:    
-%%
-%% <table><tbody><tr><td>` Type '</td><td>` Corresponding Type '</td></tr></tbody><tbody>
-%% <tr><td>`?GL_UNSIGNED_BYTE'</td><td> unsigned 8-bit integer </td></tr><tr><td>`?GL_BYTE'
-%% </td><td> signed 8-bit integer </td></tr><tr><td>`?GL_BITMAP'</td><td> single bits
-%% in unsigned 8-bit integers </td></tr><tr><td>`?GL_UNSIGNED_SHORT'</td><td> unsigned
-%% 16-bit integer </td></tr><tr><td>`?GL_SHORT'</td><td> signed 16-bit integer </td></tr>
-%% <tr><td>`?GL_UNSIGNED_INT'</td><td> unsigned 32-bit integer </td></tr><tr><td>`?GL_INT'
-%% </td><td> 32-bit integer </td></tr><tr><td>`?GL_FLOAT'</td><td> single-precision
-%% floating-point </td></tr><tr><td>`?GL_UNSIGNED_BYTE_3_3_2'</td><td> unsigned 8-bit
-%% integer  </td></tr><tr><td>`?GL_UNSIGNED_BYTE_2_3_3_REV'</td><td> unsigned 8-bit
-%% integer with reversed component ordering </td></tr><tr><td>`?GL_UNSIGNED_SHORT_5_6_5'</td>
-%% <td> unsigned 16-bit integer </td></tr><tr><td>`?GL_UNSIGNED_SHORT_5_6_5_REV'</td><td>
-%%  unsigned 16-bit integer with reversed component ordering </td></tr><tr><td>`?GL_UNSIGNED_SHORT_4_4_4_4'
-%% </td><td> unsigned 16-bit integer </td></tr><tr><td>`?GL_UNSIGNED_SHORT_4_4_4_4_REV'</td>
-%% <td> unsigned 16-bit integer with reversed component ordering </td></tr><tr><td>`?GL_UNSIGNED_SHORT_5_5_5_1'
-%% </td><td> unsigned 16-bit integer </td></tr><tr><td>`?GL_UNSIGNED_SHORT_1_5_5_5_REV'</td>
-%% <td> unsigned 16-bit integer with reversed component ordering </td></tr><tr><td>`?GL_UNSIGNED_INT_8_8_8_8'
-%% </td><td> unsigned 32-bit integer </td></tr><tr><td>`?GL_UNSIGNED_INT_8_8_8_8_REV'</td>
-%% <td> unsigned 32-bit integer with reversed component ordering </td></tr><tr><td>`?GL_UNSIGNED_INT_10_10_10_2'
-%% </td><td> unsigned 32-bit integer </td></tr><tr><td>`?GL_UNSIGNED_INT_2_10_10_10_REV'</td>
-%% <td> unsigned 32-bit integer with reversed component ordering </td></tr></tbody></table>
-%%
-%%  The rasterization described so far assumes pixel zoom factors of 1. If  {@link gl:pixelZoom/2} 
-%%  is used to change the   x and   y pixel zoom factors, pixels are converted to fragments
-%% as follows. If  (x r y r) is the current raster position, and a given pixel is in the   nth column
-%% and   mth row of the pixel rectangle, then fragments are generated for pixels whose centers
-%% are in the rectangle with corners at 
-%%
-%% (x r+(zoom x)  n y r+(zoom y)  m)
-%%
-%% (x r+(zoom x)(n+1) y r+(zoom y)(m+1))
-%%
-%%  where   zoom x is the value of `?GL_ZOOM_X' and  zoom y is the value of `?GL_ZOOM_Y'
-%% . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawPixels.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glDrawPixels.xml">external</a> documentation.
 -spec drawPixels(Width, Height, Format, Type, Pixels) -> 'ok' when Width :: integer(),Height :: integer(),Format :: enum(),Type :: enum(),Pixels :: offset()|mem().
 drawPixels(Width,Height,Format,Type,Pixels) when  is_integer(Pixels) ->
   cast(5236, <<Width:?GLsizei,Height:?GLsizei,Format:?GLenum,Type:?GLenum,Pixels:?GLuint>>);
@@ -5557,98 +2389,7 @@ drawPixels(Width,Height,Format,Type,Pixels) ->
 %% window. Results of copies from outside the window, or from regions of the window that
 %% are not exposed, are hardware dependent and undefined. 
 %%
-%%  `X'  and  `Y'  specify the window coordinates of the lower left corner of the rectangular
-%% region to be copied.  `Width'  and  `Height'  specify the dimensions of the rectangular
-%% region to be copied. Both  `Width'  and  `Height'  must not be negative. 
-%%
-%%  Several parameters control the processing of the pixel data while it is being copied.
-%% These parameters are set with three commands:  {@link gl:pixelTransferf/2} ,  {@link gl:pixelMapfv/3} 
-%% , and  {@link gl:pixelZoom/2} . This reference page describes the effects on ``gl:copyPixels''
-%%  of most, but not all, of the parameters specified by these three commands. 
-%%
-%% ``gl:copyPixels'' copies values from each pixel with the lower left-hand corner at (x+i
-%% y+j)
-%% for   0&lt;= i&lt; width and   0&lt;= j&lt; height. This pixel is said to be the   ith
-%% pixel in the   jth row. Pixels are copied in row order from the lowest to the highest
-%% row, left to right in each row. 
-%%
-%%  `Type'  specifies whether color, depth, or stencil data is to be copied. The details
-%% of the transfer for each data type are as follows: 
-%%
-%% `?GL_COLOR':  Indices or RGBA colors are read from the buffer currently specified
-%% as the read source buffer (see  {@link gl:readBuffer/1} ). If the GL is in color index mode,
-%% each index that is read from this buffer is converted to a fixed-point format with an
-%% unspecified number of bits to the right of the binary point. Each index is then shifted
-%% left by `?GL_INDEX_SHIFT' bits, and added to `?GL_INDEX_OFFSET'. If `?GL_INDEX_SHIFT'
-%%  is negative, the shift is to the right. In either case, zero bits fill otherwise unspecified
-%% bit locations in the result. If `?GL_MAP_COLOR' is true, the index is replaced with
-%% the value that it references in lookup table `?GL_PIXEL_MAP_I_TO_I'. Whether the
-%% lookup replacement of the index is done or not, the integer part of the index is then
-%% ANDed with   2 b-1, where   b is the number of bits in a color index buffer. 
-%%
-%%  If the GL is in RGBA mode, the red, green, blue, and alpha components of each pixel that
-%% is read are converted to an internal floating-point format with unspecified precision.
-%% The conversion maps the largest representable component value to 1.0, and component value
-%% 0 to 0.0. The resulting floating-point color values are then multiplied by `?GL_c_SCALE'
-%%  and added to `?GL_c_BIAS', where `c' is RED, GREEN, BLUE, and ALPHA for the
-%% respective color components. The results are clamped to the range [0,1]. If `?GL_MAP_COLOR'
-%%  is true, each color component is scaled by the size of lookup table `?GL_PIXEL_MAP_c_TO_c'
-%% , then replaced by the value that it references in that table. `c' is R, G, B, or
-%% A. 
-%%
-%%  If the ARB_imaging extension is supported, the color values may be additionally processed
-%% by color-table lookups, color-matrix transformations, and convolution filters. 
-%%
-%%  The GL then converts the resulting indices or RGBA colors to fragments by attaching the
-%% current raster position `z' coordinate and texture coordinates to each pixel, then
-%% assigning window coordinates (x r+i y r+j), where  (x r y r) is the current raster position, and the pixel was
-%% the   ith pixel in the   jth row. These pixel fragments are then treated just like the
-%% fragments generated by rasterizing points, lines, or polygons. Texture mapping, fog, and
-%% all the fragment operations are applied before the fragments are written to the frame
-%% buffer. 
-%%
-%% `?GL_DEPTH':  Depth values are read from the depth buffer and converted directly
-%% to an internal floating-point format with unspecified precision. The resulting floating-point
-%% depth value is then multiplied by `?GL_DEPTH_SCALE' and added to `?GL_DEPTH_BIAS'
-%% . The result is clamped to the range [0,1]. 
-%%
-%%  The GL then converts the resulting depth components to fragments by attaching the current
-%% raster position color or color index and texture coordinates to each pixel, then assigning
-%% window coordinates (x r+i y r+j), where  (x r y r) is the current raster position, and the pixel was the   ith
-%% pixel in the   jth row. These pixel fragments are then treated just like the fragments
-%% generated by rasterizing points, lines, or polygons. Texture mapping, fog, and all the
-%% fragment operations are applied before the fragments are written to the frame buffer. 
-%%
-%% `?GL_STENCIL':  Stencil indices are read from the stencil buffer and converted to
-%% an internal fixed-point format with an unspecified number of bits to the right of the
-%% binary point. Each fixed-point index is then shifted left by `?GL_INDEX_SHIFT' bits,
-%% and added to `?GL_INDEX_OFFSET'. If `?GL_INDEX_SHIFT' is negative, the shift
-%% is to the right. In either case, zero bits fill otherwise unspecified bit locations in
-%% the result. If `?GL_MAP_STENCIL' is true, the index is replaced with the value that
-%% it references in lookup table `?GL_PIXEL_MAP_S_TO_S'. Whether the lookup replacement
-%% of the index is done or not, the integer part of the index is then ANDed with   2 b-1,
-%% where   b is the number of bits in the stencil buffer. The resulting stencil indices are
-%% then written to the stencil buffer such that the index read from the   ith location of
-%% the   jth row is written to location (x r+i y r+j), where  (x r y r) is the current raster position. Only the
-%% pixel ownership test, the scissor test, and the stencil writemask affect these write operations.
-%% 
-%%
-%%  The rasterization described thus far assumes pixel zoom factors of 1.0. If  {@link gl:pixelZoom/2} 
-%%  is used to change the   x and   y pixel zoom factors, pixels are converted to fragments
-%% as follows. If  (x r y r) is the current raster position, and a given pixel is in the   ith location
-%% in the   jth row of the source pixel rectangle, then fragments are generated for pixels
-%% whose centers are in the rectangle with corners at 
-%%
-%% (x r+(zoom x)  i y r+(zoom y)  j)
-%%
-%%  and 
-%%
-%% (x r+(zoom x)(i+1) y r+(zoom y)(j+1))
-%%
-%%  where   zoom x is the value of `?GL_ZOOM_X' and  zoom y is the value of `?GL_ZOOM_Y'
-%% . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCopyPixels.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glCopyPixels.xml">external</a> documentation.
 -spec copyPixels(X, Y, Width, Height, Type) -> 'ok' when X :: integer(),Y :: integer(),Width :: integer(),Height :: integer(),Type :: enum().
 copyPixels(X,Y,Width,Height,Type) ->
   cast(5238, <<X:?GLint,Y:?GLint,Width:?GLsizei,Height:?GLsizei,Type:?GLenum>>).
@@ -5661,57 +2402,7 @@ copyPixels(X,Y,Width,Height,Type) ->
 %% typically used in multipass rendering algorithms to achieve special effects, such as decals,
 %% outlining, and constructive solid geometry rendering. 
 %%
-%%  The stencil test conditionally eliminates a pixel based on the outcome of a comparison
-%% between the reference value and the value in the stencil buffer. To enable and disable
-%% the test, call  {@link gl:enable/1}  and  {@link gl:enable/1}  with argument `?GL_STENCIL_TEST'
-%% . To specify actions based on the outcome of the stencil test, call  {@link gl:stencilOp/3} 
-%% or   {@link gl:stencilOpSeparate/4} . 
-%%
-%%  There can be two separate sets of  `Func' ,  `Ref' , and   `Mask'  parameters;
-%% one affects back-facing polygons, and the other affects front-facing polygons as well
-%% as other non-polygon primitives.   {@link gl:stencilFunc/3}  sets both front and back stencil
-%% state to the same values. Use  {@link gl:stencilFuncSeparate/4}  to set front and back stencil
-%% state to different values. 
-%%
-%%  `Func'  is a symbolic constant that determines the stencil comparison function. It
-%% accepts one of eight values, shown in the following list.  `Ref'  is an integer reference
-%% value that is used in the stencil comparison. It is clamped to the range  [0 2 n-1], where   n
-%% is the number of bitplanes in the stencil buffer.  `Mask'  is bitwise ANDed with both
-%% the reference value and the stored stencil value, with the ANDed values participating
-%% in the comparison. 
-%%
-%%  If `stencil' represents the value stored in the corresponding stencil buffer location,
-%% the following list shows the effect of each comparison function that can be specified by  `Func' 
-%% . Only if the comparison succeeds is the pixel passed through to the next stage in the
-%% rasterization process (see  {@link gl:stencilOp/3} ). All tests treat `stencil' values
-%% as unsigned integers in the range [0 2 n-1], where   n is the number of bitplanes in the stencil
-%% buffer. 
-%%
-%%  The following values are accepted by  `Func' : 
-%%
-%% `?GL_NEVER':  Always fails. 
-%%
-%% `?GL_LESS':  Passes if (  `Ref'  &amp;  `Mask'  ) &lt; ( `stencil' &amp;  `Mask' 
-%%  ). 
-%%
-%% `?GL_LEQUAL':  Passes if (  `Ref'  &amp;  `Mask'  ) &lt;= ( `stencil'
-%% &amp;  `Mask'  ). 
-%%
-%% `?GL_GREATER':  Passes if (  `Ref'  &amp;  `Mask'  ) &gt; ( `stencil'
-%% &amp;  `Mask'  ). 
-%%
-%% `?GL_GEQUAL':  Passes if (  `Ref'  &amp;  `Mask'  ) &gt;= ( `stencil'
-%% &amp;  `Mask'  ). 
-%%
-%% `?GL_EQUAL':  Passes if (  `Ref'  &amp;  `Mask'  ) = ( `stencil' &amp;  `Mask' 
-%%  ). 
-%%
-%% `?GL_NOTEQUAL':  Passes if (  `Ref'  &amp;  `Mask'  ) != ( `stencil' &amp;
-%%  `Mask'  ). 
-%%
-%% `?GL_ALWAYS':  Always passes. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glStencilFunc.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glStencilFunc.xhtml">external</a> documentation.
 -spec stencilFunc(Func, Ref, Mask) -> 'ok' when Func :: enum(),Ref :: integer(),Mask :: integer().
 stencilFunc(Func,Ref,Mask) ->
   cast(5239, <<Func:?GLenum,Ref:?GLint,Mask:?GLuint>>).
@@ -5724,12 +2415,7 @@ stencilFunc(Func,Ref,Mask) ->
 %% bit in the stencil buffer. Where a 0 appears, the corresponding bit is write-protected.
 %% Initially, all bits are enabled for writing. 
 %%
-%%  There can be two separate  `Mask'  writemasks; one affects back-facing polygons, and
-%% the other affects front-facing polygons as well as other non-polygon primitives.   {@link gl:stencilMask/1} 
-%%  sets both front and back stencil writemasks to the same values. Use  {@link gl:stencilMaskSeparate/2} 
-%%  to set front and back stencil writemasks to different values. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glStencilMask.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glStencilMask.xhtml">external</a> documentation.
 -spec stencilMask(Mask) -> 'ok' when Mask :: integer().
 stencilMask(Mask) ->
   cast(5240, <<Mask:?GLuint>>).
@@ -5742,55 +2428,7 @@ stencilMask(Mask) ->
 %% used in multipass rendering algorithms to achieve special effects, such as decals, outlining,
 %% and constructive solid geometry rendering. 
 %%
-%%  The stencil test conditionally eliminates a pixel based on the outcome of a comparison
-%% between the value in the stencil buffer and a reference value. To enable and disable the
-%% test, call  {@link gl:enable/1}  and  {@link gl:enable/1}  with argument `?GL_STENCIL_TEST'
-%% ; to control it, call   {@link gl:stencilFunc/3}  or   {@link gl:stencilFuncSeparate/4} . 
-%%
-%%  There can be two separate sets of  `Sfail' ,  `Dpfail' , and   `Dppass'  parameters;
-%% one affects back-facing polygons, and the other affects front-facing polygons as well
-%% as other non-polygon primitives.   {@link gl:stencilOp/3}  sets both front and back stencil
-%% state to the same values. Use  {@link gl:stencilOpSeparate/4}  to set front and back stencil
-%% state to different values. 
-%%
-%% ``gl:stencilOp'' takes three arguments that indicate what happens to the stored stencil
-%% value while stenciling is enabled. If the stencil test fails, no change is made to the
-%% pixel's color or depth buffers, and  `Sfail'  specifies what happens to the stencil
-%% buffer contents. The following eight actions are possible. 
-%%
-%% `?GL_KEEP':  Keeps the current value. 
-%%
-%% `?GL_ZERO':  Sets the stencil buffer value to 0. 
-%%
-%% `?GL_REPLACE':  Sets the stencil buffer value to `ref', as specified by  {@link gl:stencilFunc/3} 
-%% . 
-%%
-%% `?GL_INCR':  Increments the current stencil buffer value. Clamps to the maximum representable
-%% unsigned value. 
-%%
-%% `?GL_INCR_WRAP':  Increments the current stencil buffer value. Wraps stencil buffer
-%% value to zero when incrementing the maximum representable unsigned value. 
-%%
-%% `?GL_DECR':  Decrements the current stencil buffer value. Clamps to 0. 
-%%
-%% `?GL_DECR_WRAP':  Decrements the current stencil buffer value. Wraps stencil buffer
-%% value to the maximum representable unsigned value when decrementing a stencil buffer value
-%% of zero. 
-%%
-%% `?GL_INVERT':  Bitwise inverts the current stencil buffer value. 
-%%
-%%  Stencil buffer values are treated as unsigned integers. When incremented and decremented,
-%% values are clamped to 0 and   2 n-1, where   n is the value returned by querying `?GL_STENCIL_BITS'
-%% . 
-%%
-%%  The other two arguments to ``gl:stencilOp'' specify stencil buffer actions that depend
-%% on whether subsequent depth buffer tests succeed ( `Dppass' ) or fail ( `Dpfail' )
-%% (see  {@link gl:depthFunc/1} ). The actions are specified using the same eight symbolic constants
-%% as  `Sfail' . Note that  `Dpfail'  is ignored when there is no depth buffer, or
-%% when the depth buffer is not enabled. In these cases,  `Sfail'  and  `Dppass'  specify
-%% stencil action when the stencil test fails and passes, respectively. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glStencilOp.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glStencilOp.xhtml">external</a> documentation.
 -spec stencilOp(Fail, Zfail, Zpass) -> 'ok' when Fail :: enum(),Zfail :: enum(),Zpass :: enum().
 stencilOp(Fail,Zfail,Zpass) ->
   cast(5241, <<Fail:?GLenum,Zfail:?GLenum,Zpass:?GLenum>>).
@@ -5801,7 +2439,7 @@ stencilOp(Fail,Zfail,Zpass) ->
 %% buffer.  `S'  is masked with   2 m-1, where   m is the number of bits in the stencil
 %% buffer. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClearStencil.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glClearStencil.xhtml">external</a> documentation.
 -spec clearStencil(S) -> 'ok' when S :: integer().
 clearStencil(S) ->
   cast(5242, <<S:?GLint>>).
@@ -5818,69 +2456,7 @@ clearStencil(S) ->
 %%  is either `?GL_OBJECT_PLANE' or `?GL_EYE_PLANE',  `Params'  contains coefficients
 %% for the corresponding texture generation function. 
 %%
-%%  If the texture generation function is `?GL_OBJECT_LINEAR', the function 
-%%
-%%  g=p 1×x o+p 2×y o+p 3×z o+p 4×w o
-%%
-%%  is used, where   g is the value computed for the coordinate named in  `Coord' ,  p 1,
-%%  p 2,  p 3, and  p 4 are the four values supplied in  `Params' , and  x o,  y o,  z o,
-%% and  w o are the object coordinates of the vertex. This function can be used, for example,
-%% to texture-map terrain using sea level as a reference plane (defined by   p 1,   p 2,   p
-%% 3, and   p 4). The altitude of a terrain vertex is computed by the `?GL_OBJECT_LINEAR'
-%%  coordinate generation function as its distance from sea level; that altitude can then
-%% be used to index the texture image to map white snow onto peaks and green grass onto foothills.
-%% 
-%%
-%%  If the texture generation function is `?GL_EYE_LINEAR', the function 
-%%
-%%  g=(p 1)"×x e+(p 2)"×y e+(p 3)"×z e+(p 4)"×w e
-%%
-%%  is used, where 
-%%
-%% ((p 1)" (p 2)" (p 3)" (p 4)")=(p 1  p 2  p 3  p 4)  M -1
-%%
-%%  and  x e,  y e,  z e, and  w e are the eye coordinates of the vertex,  p 1,  p 2,  p 3,
-%% and  p 4 are the values supplied in  `Params' , and  M is the modelview matrix when ``gl:texGen''
-%%  is invoked. If   M is poorly conditioned or singular, texture coordinates generated by
-%% the resulting function may be inaccurate or undefined. 
-%%
-%%  Note that the values in  `Params'  define a reference plane in eye coordinates. The
-%% modelview matrix that is applied to them may not be the same one in effect when the polygon
-%% vertices are transformed. This function establishes a field of texture coordinates that
-%% can produce dynamic contour lines on moving objects. 
-%%
-%%  If the texture generation function is `?GL_SPHERE_MAP' and  `Coord'  is either `?GL_S'
-%%  or `?GL_T',  s and   t texture coordinates are generated as follows. Let `u'
-%% be the unit vector pointing from the origin to the polygon vertex (in eye coordinates).
-%% Let `n' sup prime be the current normal, after transformation to eye coordinates.
-%% Let 
-%%
-%%  f=(f x  f y  f z) T be the reflection vector such that 
-%%
-%%  f=u-2  n" (n") T  u
-%%
-%%  Finally, let   m=2 ((f x) 2+(f y) 2+(f z+1) 2). Then the values assigned to the   s and   t texture coordinates
-%% are 
-%%
-%%  s=f x/m+1/2
-%%
-%%  t=f y/m+1/2
-%%
-%%  To enable or disable a texture-coordinate generation function, call  {@link gl:enable/1} 
-%% or  {@link gl:enable/1}  with one of the symbolic texture-coordinate names (`?GL_TEXTURE_GEN_S'
-%% , `?GL_TEXTURE_GEN_T', `?GL_TEXTURE_GEN_R', or `?GL_TEXTURE_GEN_Q') as
-%% the argument. When enabled, the specified texture coordinate is computed according to
-%% the generating function associated with that coordinate. When disabled, subsequent vertices
-%% take the specified texture coordinate from the current set of texture coordinates. Initially,
-%% all texture generation functions are set to `?GL_EYE_LINEAR' and are disabled. Both
-%%   s plane equations are (1, 0, 0, 0), both   t plane equations are (0, 1, 0, 0), and all
-%%   r and   q plane equations are (0, 0, 0, 0). 
-%%
-%%  When the ARB_multitexture extension is supported, ``gl:texGen'' sets the texture generation
-%% parameters for the currently active texture unit, selected with  {@link gl:activeTexture/1} .
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexGen.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glTexGen.xml">external</a> documentation.
 -spec texGend(Coord, Pname, Param) -> 'ok' when Coord :: enum(),Pname :: enum(),Param :: float().
 texGend(Coord,Pname,Param) ->
   cast(5243, <<Coord:?GLenum,Pname:?GLenum,Param:?GLdouble>>).
@@ -5925,22 +2501,7 @@ texGeniv(Coord,Pname,Params) ->
 %% of the (`s', `t', `r', `q') texture coordinates, using the symbolic
 %% constant `?GL_S', `?GL_T', `?GL_R', or `?GL_Q'. 
 %%
-%%  `Pname'  specifies one of three symbolic names: 
-%%
-%% `?GL_TEXTURE_GEN_MODE':  `Params'  returns the single-valued texture generation
-%% function, a symbolic constant. The initial value is `?GL_EYE_LINEAR'. 
-%%
-%% `?GL_OBJECT_PLANE':  `Params'  returns the four plane equation coefficients that
-%% specify object linear-coordinate generation. Integer values, when requested, are mapped
-%% directly from the internal floating-point representation. 
-%%
-%% `?GL_EYE_PLANE':  `Params'  returns the four plane equation coefficients that
-%% specify eye linear-coordinate generation. Integer values, when requested, are mapped directly
-%% from the internal floating-point representation. The returned values are those maintained
-%% in eye coordinates. They are not equal to the values specified using  {@link gl:texGend/3} ,
-%% unless the modelview matrix was identity when  {@link gl:texGend/3}  was called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetTexGen.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetTexGen.xml">external</a> documentation.
 -spec getTexGendv(Coord, Pname) -> {float(),float(),float(),float()} when Coord :: enum(),Pname :: enum().
 getTexGendv(Coord,Pname) ->
   call(5249, <<Coord:?GLenum,Pname:?GLenum>>).
@@ -5959,14 +2520,14 @@ getTexGeniv(Coord,Pname) ->
 
 %% @doc glTexEnvf
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexEnvf.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec texEnvf(Target, Pname, Param) -> 'ok' when Target :: enum(),Pname :: enum(),Param :: float().
 texEnvf(Target,Pname,Param) ->
   cast(5252, <<Target:?GLenum,Pname:?GLenum,Param:?GLfloat>>).
 
 %% @doc glTexEnvi
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexEnvi.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec texEnvi(Target, Pname, Param) -> 'ok' when Target :: enum(),Pname :: enum(),Param :: integer().
 texEnvi(Target,Pname,Param) ->
   cast(5253, <<Target:?GLenum,Pname:?GLenum,Param:?GLint>>).
@@ -5980,158 +2541,7 @@ texEnvi(Target,Pname,Param) ->
 %% , `?GL_ALPHA_SCALE', `?GL_SRC0_RGB', `?GL_SRC1_RGB', `?GL_SRC2_RGB', `?GL_SRC0_ALPHA'
 %% , `?GL_SRC1_ALPHA', or `?GL_SRC2_ALPHA'. 
 %%
-%%  If  `Pname'  is `?GL_TEXTURE_ENV_MODE', then  `Params'  is (or points to)
-%% the symbolic name of a texture function. Six texture functions may be specified: `?GL_ADD'
-%% , `?GL_MODULATE', `?GL_DECAL', `?GL_BLEND', `?GL_REPLACE', or `?GL_COMBINE'
-%% . 
-%%
-%%  The following table shows the correspondence of filtered texture values  R t,  G t,  B t,
-%%  A t,  L t,  I t to texture source components.  C s and  A s are used by the texture functions
-%% described below. 
-%%
-%% <table><tbody><tr><td> Texture Base Internal Format </td><td> C s</td><td> A s</td></tr></tbody>
-%% <tbody><tr><td>`?GL_ALPHA'</td><td> (0, 0, 0) </td><td> A t</td></tr><tr><td>`?GL_LUMINANCE'
-%% </td><td> (  L t,  L t,  L t ) </td><td> 1 </td></tr><tr><td>`?GL_LUMINANCE_ALPHA'</td>
-%% <td> (  L t,  L t,  L t ) </td><td> A t</td></tr><tr><td>`?GL_INTENSITY'</td><td> ( 
-%% I t,  I t,  I t ) </td><td> I t</td></tr><tr><td>`?GL_RGB'</td><td> (  R t,  G t,  B
-%% t ) </td><td> 1 </td></tr><tr><td>`?GL_RGBA'</td><td> (  R t,  G t,  B t ) </td><td>
-%% A t</td></tr></tbody></table>
-%%
-%%  A texture function acts on the fragment to be textured using the texture image value
-%% that applies to the fragment (see  {@link gl:texParameterf/3} ) and produces an RGBA color
-%% for that fragment. The following table shows how the RGBA color is produced for each of
-%% the first five texture functions that can be chosen.  C is a triple of color values (RGB)
-%% and  A is the associated alpha value. RGBA values extracted from a texture image are in
-%% the range [0,1]. The subscript  p refers to the color computed from the previous texture
-%% stage (or the incoming fragment if processing texture stage 0), the subscript  s to the
-%% texture source color, the subscript  c to the texture environment color, and the subscript
-%%  v indicates a value produced by the texture function. 
-%%
-%% <table><tbody><tr><td> Texture Base Internal Format </td><td>`?Value'</td><td>`?GL_REPLACE'
-%%  Function </td><td>`?GL_MODULATE' Function </td><td>`?GL_DECAL' Function </td><td>
-%% `?GL_BLEND' Function </td><td>`?GL_ADD' Function </td></tr></tbody><tbody><tr><td>
-%% `?GL_ALPHA'</td><td> C v=</td><td> C p</td><td> C p</td><td> undefined </td><td> C p</td>
-%% <td> C p</td></tr><tr><td></td><td> A v=</td><td> A s</td><td> A p  A s</td><td></td><td>
-%% A v=A p  A s</td><td> A p  A s</td></tr><tr><td>`?GL_LUMINANCE'</td><td> C v=</td><td>
-%%  C s</td><td> C p  C s</td><td> undefined </td><td> C p (1-C s)+C c  C s</td><td> C p+C s</td></tr>
-%% <tr><td> (or 1) </td><td> A v=</td><td> A p</td><td> A p</td><td></td><td> A p</td><td> A
-%% p</td></tr><tr><td>`?GL_LUMINANCE_ALPHA'</td><td> C v=</td><td> C s</td><td> C p  C
-%% s</td><td> undefined </td><td> C p (1-C s)+C c  C s</td><td> C p+C s</td></tr><tr><td> (or 2) </td>
-%% <td> A v=</td><td> A s</td><td> A p  A s</td><td></td><td> A p  A s</td><td> A p  A s</td>
-%% </tr><tr><td>`?GL_INTENSITY'</td><td> C v=</td><td> C s</td><td> C p  C s</td><td>
-%% undefined </td><td> C p (1-C s)+C c  C s</td><td> C p+C s</td></tr><tr><td></td><td> A v=</td><td>
-%%  A s</td><td> A p  A s</td><td></td><td> A p (1-A s)+A c  A s</td><td> A p+A s</td></tr><tr><td>`?GL_RGB'
-%% </td><td> C v=</td><td> C s</td><td> C p  C s</td><td> C s</td><td> C p (1-C s)+C c  C s</td><td>
-%%  C p+C s</td></tr><tr><td> (or 3) </td><td> A v=</td><td> A p</td><td> A p</td><td> A p</td>
-%% <td> A p</td><td> A p</td></tr><tr><td>`?GL_RGBA'</td><td> C v=</td><td> C s</td><td>
-%%  C p  C s</td><td> C p (1-A s)+C s  A s</td><td> C p (1-C s)+C c  C s</td><td> C p+C s</td></tr><tr><td>
-%%  (or 4) </td><td> A v=</td><td> A s</td><td> A p  A s</td><td> A p</td><td> A p  A s</td><td>
-%%  A p  A s</td></tr></tbody></table>
-%%
-%%  If  `Pname'  is `?GL_TEXTURE_ENV_MODE', and  `Params'  is `?GL_COMBINE',
-%% the form of the texture function depends on the values of `?GL_COMBINE_RGB' and `?GL_COMBINE_ALPHA'
-%% . 
-%%
-%%  The following describes how the texture sources, as specified by `?GL_SRC0_RGB', `?GL_SRC1_RGB'
-%% , `?GL_SRC2_RGB', `?GL_SRC0_ALPHA', `?GL_SRC1_ALPHA', and `?GL_SRC2_ALPHA'
-%% , are combined to produce a final texture color. In the following tables, `?GL_SRC0_c'
-%%  is represented by  Arg0, `?GL_SRC1_c' is represented by  Arg1, and `?GL_SRC2_c'
-%% is represented by  Arg2. 
-%%
-%% `?GL_COMBINE_RGB' accepts any of `?GL_REPLACE', `?GL_MODULATE', `?GL_ADD'
-%% , `?GL_ADD_SIGNED', `?GL_INTERPOLATE', `?GL_SUBTRACT', `?GL_DOT3_RGB',
-%% or `?GL_DOT3_RGBA'. 
-%%
-%% <table><tbody><tr><td>`?GL_COMBINE_RGB'</td><td>` Texture Function '</td></tr></tbody>
-%% <tbody><tr><td>`?GL_REPLACE'</td><td> Arg0</td></tr><tr><td>`?GL_MODULATE'</td><td>
-%%  Arg0×Arg1</td></tr><tr><td>`?GL_ADD'</td><td> Arg0+Arg1</td></tr><tr><td>`?GL_ADD_SIGNED'
-%% </td><td> Arg0+Arg1-0.5</td></tr><tr><td>`?GL_INTERPOLATE'</td><td> Arg0×Arg2+Arg1×(1-
-%% Arg2)</td>
-%% </tr><tr><td>`?GL_SUBTRACT'</td><td> Arg0-Arg1</td></tr><tr><td>`?GL_DOT3_RGB'
-%% or `?GL_DOT3_RGBA'</td><td> 4×((((Arg0 r)-0.5)×((Arg1 r)-0.5))+(((Arg0 g)-0.5)×((Arg1 g)-0.5))+(((Arg0 b)-0.5)×((Arg1 b)-0.5)))</td></tr></tbody></table>
-%%
-%%  The scalar results for `?GL_DOT3_RGB' and `?GL_DOT3_RGBA' are placed into each
-%% of the 3 (RGB) or 4 (RGBA) components on output. 
-%%
-%%  Likewise, `?GL_COMBINE_ALPHA' accepts any of `?GL_REPLACE', `?GL_MODULATE',
-%% `?GL_ADD', `?GL_ADD_SIGNED', `?GL_INTERPOLATE', or `?GL_SUBTRACT'.
-%% The following table describes how alpha values are combined: 
-%%
-%% <table><tbody><tr><td>`?GL_COMBINE_ALPHA'</td><td>` Texture Function '</td></tr>
-%% </tbody><tbody><tr><td>`?GL_REPLACE'</td><td> Arg0</td></tr><tr><td>`?GL_MODULATE'
-%% </td><td> Arg0×Arg1</td></tr><tr><td>`?GL_ADD'</td><td> Arg0+Arg1</td></tr><tr><td>`?GL_ADD_SIGNED'
-%% </td><td> Arg0+Arg1-0.5</td></tr><tr><td>`?GL_INTERPOLATE'</td><td> Arg0×Arg2+Arg1×(1-
-%% Arg2)</td>
-%% </tr><tr><td>`?GL_SUBTRACT'</td><td> Arg0-Arg1</td></tr></tbody></table>
-%%
-%%  In the following tables, the value  C s represents the color sampled from the currently
-%% bound texture,  C c represents the constant texture-environment color,  C f represents
-%% the primary color of the incoming fragment, and  C p represents the color computed from
-%% the previous texture stage or  C f if processing texture stage 0. Likewise,  A s,  A c, 
-%% A f, and  A p represent the respective alpha values. 
-%%
-%%  The following table describes the values assigned to  Arg0,  Arg1, and  Arg2 based upon
-%% the RGB sources and operands: 
-%%
-%% <table><tbody><tr><td>`?GL_SRCn_RGB'</td><td>`?GL_OPERANDn_RGB'</td><td>` Argument Value '
-%% </td></tr></tbody><tbody><tr><td>`?GL_TEXTURE'</td><td>`?GL_SRC_COLOR'</td><td>(C
-%%  s)</td>
-%% </tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_COLOR'</td><td> 1-(C s)</td></tr><tr><td></td><td>
-%% `?GL_SRC_ALPHA'</td><td>(A s)</td></tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_ALPHA'</td>
-%% <td> 1-(A s)</td></tr><tr><td>`?GL_TEXTUREn'</td><td>`?GL_SRC_COLOR'</td><td>(C s)</td></tr>
-%% <tr><td></td><td>`?GL_ONE_MINUS_SRC_COLOR'</td><td> 1-(C s)</td></tr><tr><td></td><td>`?GL_SRC_ALPHA'
-%% </td><td>(A s)</td></tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_ALPHA'</td><td> 1-(A s)</td></tr><tr>
-%% <td>`?GL_CONSTANT'</td><td>`?GL_SRC_COLOR'</td><td>(C c)</td></tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_COLOR'
-%% </td><td> 1-(C c)</td></tr><tr><td></td><td>`?GL_SRC_ALPHA'</td><td>(A c)</td></tr><tr><td></td>
-%% <td>`?GL_ONE_MINUS_SRC_ALPHA'</td><td> 1-(A c)</td></tr><tr><td>`?GL_PRIMARY_COLOR'</td>
-%% <td>`?GL_SRC_COLOR'</td><td>(C f)</td></tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_COLOR'</td>
-%% <td> 1-(C f)</td></tr><tr><td></td><td>`?GL_SRC_ALPHA'</td><td>(A f)</td></tr><tr><td></td><td>
-%% `?GL_ONE_MINUS_SRC_ALPHA'</td><td> 1-(A f)</td></tr><tr><td>`?GL_PREVIOUS'</td><td>`?GL_SRC_COLOR'
-%% </td><td>(C p)</td></tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_COLOR'</td><td> 1-(C p)</td></tr><tr>
-%% <td></td><td>`?GL_SRC_ALPHA'</td><td>(A p)</td></tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_ALPHA'
-%% </td><td> 1-(A p)</td></tr></tbody></table>
-%%
-%%  For `?GL_TEXTUREn' sources,  C s and  A s represent the color and alpha, respectively,
-%% produced from texture stage  n. 
-%%
-%%  The follow table describes the values assigned to  Arg0,  Arg1, and  Arg2 based upon
-%% the alpha sources and operands: 
-%%
-%% <table><tbody><tr><td>`?GL_SRCn_ALPHA'</td><td>`?GL_OPERANDn_ALPHA'</td><td>` Argument Value '
-%% </td></tr></tbody><tbody><tr><td>`?GL_TEXTURE'</td><td>`?GL_SRC_ALPHA'</td><td>(A
-%%  s)</td>
-%% </tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_ALPHA'</td><td> 1-(A s)</td></tr><tr><td>`?GL_TEXTUREn'
-%% </td><td>`?GL_SRC_ALPHA'</td><td>(A s)</td></tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_ALPHA'
-%% </td><td> 1-(A s)</td></tr><tr><td>`?GL_CONSTANT'</td><td>`?GL_SRC_ALPHA'</td><td>(A
-%% c)</td>
-%% </tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_ALPHA'</td><td> 1-(A c)</td></tr><tr><td>`?GL_PRIMARY_COLOR'
-%% </td><td>`?GL_SRC_ALPHA'</td><td>(A f)</td></tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_ALPHA'
-%% </td><td> 1-(A f)</td></tr><tr><td>`?GL_PREVIOUS'</td><td>`?GL_SRC_ALPHA'</td><td>(A
-%% p)</td>
-%% </tr><tr><td></td><td>`?GL_ONE_MINUS_SRC_ALPHA'</td><td> 1-(A p)</td></tr></tbody></table>
-%% 
-%%
-%%  The RGB and alpha results of the texture function are multipled by the values of `?GL_RGB_SCALE'
-%%  and `?GL_ALPHA_SCALE', respectively, and clamped to the range [0 1]. 
-%%
-%%  If  `Pname'  is `?GL_TEXTURE_ENV_COLOR',  `Params'  is a pointer to an array
-%% that holds an RGBA color consisting of four values. Integer color components are interpreted
-%% linearly such that the most positive integer maps to 1.0, and the most negative integer
-%% maps to -1.0. The values are clamped to the range [0,1] when they are specified.  C c
-%% takes these four values. 
-%%
-%%  If  `Pname'  is `?GL_TEXTURE_LOD_BIAS', the value specified is added to the texture
-%% level-of-detail parameter, that selects which mipmap, or mipmaps depending upon the selected
-%% `?GL_TEXTURE_MIN_FILTER', will be sampled. 
-%%
-%% `?GL_TEXTURE_ENV_MODE' defaults to `?GL_MODULATE' and `?GL_TEXTURE_ENV_COLOR'
-%%  defaults to (0, 0, 0, 0). 
-%%
-%%  If  `Target'  is `?GL_POINT_SPRITE' and  `Pname'  is `?GL_COORD_REPLACE',
-%% the boolean value specified is used to either enable or disable point sprite texture coordinate
-%% replacement. The default value is `?GL_FALSE'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexEnv.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glTexEnv.xml">external</a> documentation.
 -spec texEnvfv(Target, Pname, Params) -> 'ok' when Target :: enum(),Pname :: enum(),Params :: tuple().
 texEnvfv(Target,Pname,Params) ->
   cast(5254, <<Target:?GLenum,Pname:?GLenum,(size(Params)):?GLuint,
@@ -6149,80 +2559,7 @@ texEnviv(Target,Pname,Params) ->
 %% ``gl:getTexEnv'' returns in  `Params'  selected values of a texture environment that
 %% was specified with  {@link gl:texEnvfv/3} .  `Target'  specifies a texture environment. 
 %%
-%%  When  `Target'  is `?GL_TEXTURE_FILTER_CONTROL',  `Pname'  must be `?GL_TEXTURE_LOD_BIAS'
-%% .  When  `Target'  is `?GL_POINT_SPRITE',  `Pname'  must be `?GL_COORD_REPLACE'
-%% . When  `Target'  is `?GL_TEXTURE_ENV',  `Pname'  can be `?GL_TEXTURE_ENV_MODE'
-%% , `?GL_TEXTURE_ENV_COLOR', `?GL_COMBINE_RGB', `?GL_COMBINE_ALPHA', `?GL_RGB_SCALE'
-%% , `?GL_ALPHA_SCALE',  `?GL_SRC0_RGB', `?GL_SRC1_RGB', `?GL_SRC2_RGB',
-%% `?GL_SRC0_ALPHA', `?GL_SRC1_ALPHA', or `?GL_SRC2_ALPHA'. 
-%%
-%%  `Pname'  names a specific texture environment parameter, as follows: 
-%%
-%% `?GL_TEXTURE_ENV_MODE':  `Params'  returns the single-valued texture environment
-%% mode, a symbolic constant. The initial value is `?GL_MODULATE'. 
-%%
-%% `?GL_TEXTURE_ENV_COLOR':  `Params'  returns four integer or floating-point values
-%% that are the texture environment color. Integer values, when requested, are linearly mapped
-%% from the internal floating-point representation such that 1.0 maps to the most positive
-%% representable integer, and   -1.0 maps to the most negative representable integer. The
-%% initial value is (0, 0, 0, 0). 
-%%
-%% `?GL_TEXTURE_LOD_BIAS':  `Params'  returns a single floating-point value that
-%% is the texture level-of-detail bias. The initial value is 0. 
-%%
-%% `?GL_COMBINE_RGB':  `Params'  returns a single symbolic constant value representing
-%% the current RGB combine mode. The initial value is `?GL_MODULATE'. 
-%%
-%% `?GL_COMBINE_ALPHA':  `Params'  returns a single symbolic constant value representing
-%% the current alpha combine mode. The initial value is `?GL_MODULATE'. 
-%%
-%% `?GL_SRC0_RGB':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner zero's RGB source. The initial value is `?GL_TEXTURE'. 
-%%
-%% `?GL_SRC1_RGB':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner one's RGB source. The initial value is `?GL_PREVIOUS'. 
-%%
-%% `?GL_SRC2_RGB':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner two's RGB source. The initial value is `?GL_CONSTANT'. 
-%%
-%% `?GL_SRC0_ALPHA':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner zero's alpha source. The initial value is `?GL_TEXTURE'. 
-%%
-%% `?GL_SRC1_ALPHA':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner one's alpha source. The initial value is `?GL_PREVIOUS'. 
-%%
-%% `?GL_SRC2_ALPHA':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner two's alpha source. The initial value is `?GL_CONSTANT'. 
-%%
-%% `?GL_OPERAND0_RGB':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner zero's RGB operand. The initial value is `?GL_SRC_COLOR'. 
-%%
-%% `?GL_OPERAND1_RGB':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner one's RGB operand. The initial value is `?GL_SRC_COLOR'. 
-%%
-%% `?GL_OPERAND2_RGB':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner two's RGB operand. The initial value is `?GL_SRC_ALPHA'. 
-%%
-%% `?GL_OPERAND0_ALPHA':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner zero's alpha operand. The initial value is `?GL_SRC_ALPHA'. 
-%%
-%% `?GL_OPERAND1_ALPHA':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner one's alpha operand. The initial value is `?GL_SRC_ALPHA'. 
-%%
-%% `?GL_OPERAND2_ALPHA':  `Params'  returns a single symbolic constant value representing
-%% the texture combiner two's alpha operand. The initial value is `?GL_SRC_ALPHA'. 
-%%
-%% `?GL_RGB_SCALE':  `Params'  returns a single floating-point value representing
-%% the current RGB texture combiner scaling factor. The initial value is 1.0. 
-%%
-%% `?GL_ALPHA_SCALE':  `Params'  returns a single floating-point value representing
-%% the current alpha texture combiner scaling factor. The initial value is 1.0. 
-%%
-%% `?GL_COORD_REPLACE':  `Params'  returns a single boolean value representing the
-%% current point sprite texture coordinate replacement enable state. The initial value is `?GL_FALSE'
-%% . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetTexEnv.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetTexEnv.xml">external</a> documentation.
 -spec getTexEnvfv(Target, Pname) -> {float(),float(),float(),float()} when Target :: enum(),Pname :: enum().
 getTexEnvfv(Target,Pname) ->
   call(5256, <<Target:?GLenum,Pname:?GLenum>>).
@@ -6240,218 +2577,7 @@ getTexEnviv(Target,Pname) ->
 %% , `?GL_TEXTURE_2D', `?GL_TEXTURE_1D_ARRAY', `?GL_TEXTURE_2D_ARRAY', `?GL_TEXTURE_RECTANGLE'
 %% , or `?GL_TEXTURE_3D'. The following symbols are accepted in  `Pname' : 
 %%
-%% `?GL_TEXTURE_BASE_LEVEL':  Specifies the index of the lowest defined mipmap level.
-%% This is an integer value. The initial value is 0. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_BORDER_COLOR':  The data in  `Params'  specifies four values that
-%% define the border values that should be used for border texels. If a texel is sampled
-%% from the border of the texture, the values of `?GL_TEXTURE_BORDER_COLOR' are interpreted
-%% as an RGBA color to match the texture's internal format and substituted for the non-existent
-%% texel data. If the texture contains depth components, the first component of `?GL_TEXTURE_BORDER_COLOR'
-%%  is interpreted as a depth value. The initial value is ( 0.0, 0.0, 0.0, 0.0 ). 
-%%
-%%  If the values for `?GL_TEXTURE_BORDER_COLOR' are specified with ``gl:texParameterIiv''
-%%  or ``gl:texParameterIuiv'', the values are stored unmodified with an internal data
-%% type of integer. If specified with ``gl:texParameteriv'', they are converted to floating
-%% point with the following equation:  f=2 c+1 2 b-/1. If specified with ``gl:texParameterfv''
-%% , they are stored unmodified as floating-point values. 
-%%
-%% `?GL_TEXTURE_COMPARE_FUNC':  Specifies the comparison operator used when `?GL_TEXTURE_COMPARE_MODE'
-%%  is set to `?GL_COMPARE_REF_TO_TEXTURE'. Permissible values are: <table><tbody><tr><td>
-%% ` Texture Comparison Function '</td><td>` Computed result  '</td></tr></tbody><tbody>
-%% <tr><td>`?GL_LEQUAL'</td><td> result={1.0 0.0    r&lt;=(D t) r&gt;(D t))</td></tr><tr><td>`?GL_GEQUAL'</td><td>
-%% result={1.0 0.0    r&gt;=(D t) r&lt;(D t))</td></tr><tr><td>`?GL_LESS'</td><td> result={1.0 0.0    r&lt;(D t) r&gt;=(D t))</td></tr><tr><td>`?GL_GREATER'
-%% </td><td> result={1.0 0.0    r&gt;(D t) r&lt;=(D t))</td></tr><tr><td>`?GL_EQUAL'</td><td> result={1.0 0.0    r=(D t) r&amp;ne;
-%% (D t))</td></tr><tr><td>`?GL_NOTEQUAL'
-%% </td><td> result={1.0 0.0    r&amp;ne;(D t) r=(D t))</td></tr><tr><td>`?GL_ALWAYS'</td><td> result=1.0</td></tr><tr><td>
-%% `?GL_NEVER'</td><td> result=0.0</td></tr></tbody></table> where  r is the current
-%% interpolated texture coordinate, and   D t is the depth texture value sampled from the
-%% currently bound depth texture.  result is assigned to the the red channel. 
-%%
-%% `?GL_TEXTURE_COMPARE_MODE':  Specifies the texture comparison mode for currently
-%% bound depth textures. That is, a texture whose internal format is `?GL_DEPTH_COMPONENT_*'
-%% ; see  {@link gl:texImage2D/9} ) Permissible values are: 
-%%
-%% `?GL_COMPARE_REF_TO_TEXTURE':  Specifies that the interpolated and clamped   r texture
-%% coordinate should be compared to the value in the currently bound depth texture. See the
-%% discussion of `?GL_TEXTURE_COMPARE_FUNC' for details of how the comparison is evaluated.
-%% The result of the comparison is assigned to the red channel. 
-%%
-%% `?GL_NONE':  Specifies that the red channel should be assigned the appropriate value
-%% from the currently bound depth texture. 
-%%
-%% `?GL_TEXTURE_LOD_BIAS':  `Params'  specifies a fixed bias value that is to be
-%% added to the level-of-detail parameter for the texture before texture sampling. The specified
-%% value is added to the shader-supplied bias value (if any) and subsequently clamped into
-%% the implementation-defined range [( -  bias max)(bias max)], where  bias max is the value of the implementation
-%% defined constant `?GL_MAX_TEXTURE_LOD_BIAS'. The initial value is 0.0. 
-%%
-%% `?GL_TEXTURE_MIN_FILTER':  The texture minifying function is used whenever the level-of-detail
-%% function used when sampling from the texture determines that the texture should be minified.
-%% There are six defined minifying functions. Two of them use either the nearest texture
-%% elements or a weighted average of multiple texture elements to compute the texture value.
-%% The other four use mipmaps. 
-%%
-%%  A mipmap is an ordered set of arrays representing the same image at progressively lower
-%% resolutions. If the texture has dimensions   2 n×2 m, there are  max(n m)+1 mipmaps. The first
-%% mipmap is the original texture, with dimensions   2 n×2 m. Each subsequent mipmap has
-%% dimensions   2(k-1)×2(l-1), where   2 k×2 l are the dimensions of the previous mipmap, until either
-%%   k=0 or   l=0. At that point, subsequent mipmaps have dimension   1×2(l-1) or   2(k-1)×1 until
-%% the final mipmap, which has dimension   1×1. To define the mipmaps, call  {@link gl:texImage1D/8} 
-%% ,  {@link gl:texImage2D/9} ,  {@link gl:texImage3D/10} ,  {@link gl:copyTexImage1D/7} , or  {@link gl:copyTexImage2D/8} 
-%%  with the `level' argument indicating the order of the mipmaps. Level 0 is the original
-%% texture; level   max(n m) is the final   1×1 mipmap. 
-%%
-%%  `Params'  supplies a function for minifying the texture as one of the following: 
-%%
-%% `?GL_NEAREST':  Returns the value of the texture element that is nearest (in Manhattan
-%% distance) to the specified texture coordinates. 
-%%
-%% `?GL_LINEAR':  Returns the weighted average of the four texture elements that are
-%% closest to the specified texture coordinates. These can include items wrapped or repeated
-%% from other parts of a texture, depending on the values of `?GL_TEXTURE_WRAP_S' and `?GL_TEXTURE_WRAP_T'
-%% , and on the exact mapping. 
-%%
-%% `?GL_NEAREST_MIPMAP_NEAREST':  Chooses the mipmap that most closely matches the size
-%% of the pixel being textured and uses the `?GL_NEAREST' criterion (the texture element
-%% closest to the specified texture coordinates) to produce a texture value. 
-%%
-%% `?GL_LINEAR_MIPMAP_NEAREST':  Chooses the mipmap that most closely matches the size
-%% of the pixel being textured and uses the `?GL_LINEAR' criterion (a weighted average
-%% of the four texture elements that are closest to the specified texture coordinates) to
-%% produce a texture value. 
-%%
-%% `?GL_NEAREST_MIPMAP_LINEAR':  Chooses the two mipmaps that most closely match the
-%% size of the pixel being textured and uses the `?GL_NEAREST' criterion (the texture
-%% element closest to the specified texture coordinates ) to produce a texture value from
-%% each mipmap. The final texture value is a weighted average of those two values. 
-%%
-%% `?GL_LINEAR_MIPMAP_LINEAR':  Chooses the two mipmaps that most closely match the
-%% size of the pixel being textured and uses the `?GL_LINEAR' criterion (a weighted
-%% average of the texture elements that are closest to the specified texture coordinates)
-%% to produce a texture value from each mipmap. The final texture value is a weighted average
-%% of those two values. 
-%%
-%%  As more texture elements are sampled in the minification process, fewer aliasing artifacts
-%% will be apparent. While the `?GL_NEAREST' and `?GL_LINEAR' minification functions
-%% can be faster than the other four, they sample only one or multiple texture elements to
-%% determine the texture value of the pixel being rendered and can produce moire patterns
-%% or ragged transitions. The initial value of `?GL_TEXTURE_MIN_FILTER' is `?GL_NEAREST_MIPMAP_LINEAR'
-%% . 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_MAG_FILTER':  The texture magnification function is used whenever the
-%% level-of-detail function used when sampling from the texture determines that the texture
-%% should be magified. It sets the texture magnification function to either `?GL_NEAREST'
-%%  or `?GL_LINEAR' (see below). `?GL_NEAREST' is generally faster than `?GL_LINEAR'
-%% , but it can produce textured images with sharper edges because the transition between
-%% texture elements is not as smooth. The initial value of `?GL_TEXTURE_MAG_FILTER' is `?GL_LINEAR'
-%% . 
-%%
-%% `?GL_NEAREST':  Returns the value of the texture element that is nearest (in Manhattan
-%% distance) to the specified texture coordinates. 
-%%
-%% `?GL_LINEAR':  Returns the weighted average of the texture elements that are closest
-%% to the specified texture coordinates. These can include items wrapped or repeated from
-%% other parts of a texture, depending on the values of `?GL_TEXTURE_WRAP_S' and `?GL_TEXTURE_WRAP_T'
-%% , and on the exact mapping. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_MIN_LOD':  Sets the minimum level-of-detail parameter. This floating-point
-%% value limits the selection of highest resolution mipmap (lowest mipmap level). The initial
-%% value is -1000. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_MAX_LOD':  Sets the maximum level-of-detail parameter. This floating-point
-%% value limits the selection of the lowest resolution mipmap (highest mipmap level). The
-%% initial value is 1000. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_MAX_LEVEL':  Sets the index of the highest defined mipmap level. This
-%% is an integer value. The initial value is 1000. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_SWIZZLE_R':  Sets the swizzle that will be applied to the  r component
-%% of a texel before it is returned to the shader. Valid values for  `Param'  are `?GL_RED'
-%% , `?GL_GREEN', `?GL_BLUE', `?GL_ALPHA', `?GL_ZERO' and `?GL_ONE'.
-%% If `?GL_TEXTURE_SWIZZLE_R' is `?GL_RED', the value for  r will be taken from
-%% the first channel of the fetched texel. If `?GL_TEXTURE_SWIZZLE_R' is `?GL_GREEN'
-%% , the value for  r will be taken from the second channel of the fetched texel. If `?GL_TEXTURE_SWIZZLE_R'
-%%  is `?GL_BLUE', the value for  r will be taken from the third channel of the fetched
-%% texel. If `?GL_TEXTURE_SWIZZLE_R' is `?GL_ALPHA', the value for  r will be taken
-%% from the fourth channel of the fetched texel. If `?GL_TEXTURE_SWIZZLE_R' is `?GL_ZERO'
-%% , the value for  r will be subtituted with  0.0. If `?GL_TEXTURE_SWIZZLE_R' is `?GL_ONE'
-%% , the value for  r will be subtituted with  1.0. The initial value is `?GL_RED'. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_SWIZZLE_G':  Sets the swizzle that will be applied to the  g component
-%% of a texel before it is returned to the shader. Valid values for  `Param'  and their
-%% effects are similar to those of `?GL_TEXTURE_SWIZZLE_R'. The initial value is `?GL_GREEN'
-%% . 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_SWIZZLE_B':  Sets the swizzle that will be applied to the  b component
-%% of a texel before it is returned to the shader. Valid values for  `Param'  and their
-%% effects are similar to those of `?GL_TEXTURE_SWIZZLE_R'. The initial value is `?GL_BLUE'
-%% . 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_SWIZZLE_A':  Sets the swizzle that will be applied to the  a component
-%% of a texel before it is returned to the shader. Valid values for  `Param'  and their
-%% effects are similar to those of `?GL_TEXTURE_SWIZZLE_R'. The initial value is `?GL_ALPHA'
-%% . 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_SWIZZLE_RGBA':  Sets the swizzles that will be applied to the  r,  g, 
-%% b, and  a components of a texel before they are returned to the shader. Valid values for  `Params' 
-%%  and their effects are similar to those of `?GL_TEXTURE_SWIZZLE_R', except that all
-%% channels are specified simultaneously. Setting the value of `?GL_TEXTURE_SWIZZLE_RGBA'
-%%  is equivalent (assuming no errors are generated) to setting the parameters of each of `?GL_TEXTURE_SWIZZLE_R'
-%% , `?GL_TEXTURE_SWIZZLE_G', `?GL_TEXTURE_SWIZZLE_B', and `?GL_TEXTURE_SWIZZLE_A'
-%%  successively. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_WRAP_S':  Sets the wrap parameter for texture coordinate   s to either `?GL_CLAMP_TO_EDGE'
-%% , `?GL_CLAMP_TO_BORDER', `?GL_MIRRORED_REPEAT', or `?GL_REPEAT'. `?GL_CLAMP_TO_EDGE'
-%%  causes   s coordinates to be clamped to the range  [(1 2/N) 1-(1 2/N)], where   N is the size of the texture
-%% in the direction of clamping. `?GL_CLAMP_TO_BORDER' evaluates  s coordinates in a
-%% similar manner to `?GL_CLAMP_TO_EDGE'. However, in cases where clamping would have
-%% occurred in `?GL_CLAMP_TO_EDGE' mode, the fetched texel data is substituted with
-%% the values specified by `?GL_TEXTURE_BORDER_COLOR'. `?GL_REPEAT' causes the
-%% integer part of the   s coordinate to be ignored; the GL uses only the fractional part,
-%% thereby creating a repeating pattern. `?GL_MIRRORED_REPEAT' causes the   s coordinate
-%% to be set to the fractional part of the texture coordinate if the integer part of   s
-%% is even; if the integer part of   s is odd, then the   s texture coordinate is set to   1-
-%% frac(s), where   frac(s) represents the fractional part of  s. Initially, `?GL_TEXTURE_WRAP_S'
-%%  is set to `?GL_REPEAT'. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_WRAP_T':  Sets the wrap parameter for texture coordinate   t to either `?GL_CLAMP_TO_EDGE'
-%% , `?GL_CLAMP_TO_BORDER', `?GL_MIRRORED_REPEAT', or `?GL_REPEAT'. See the
-%% discussion under `?GL_TEXTURE_WRAP_S'. Initially, `?GL_TEXTURE_WRAP_T' is set
-%% to `?GL_REPEAT'. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_WRAP_R':  Sets the wrap parameter for texture coordinate   r to either `?GL_CLAMP_TO_EDGE'
-%% , `?GL_CLAMP_TO_BORDER', `?GL_MIRRORED_REPEAT', or `?GL_REPEAT'. See the
-%% discussion under `?GL_TEXTURE_WRAP_S'. Initially, `?GL_TEXTURE_WRAP_R' is set
-%% to `?GL_REPEAT'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexParameter.xhtml">external</a> documentation.
 -spec texParameterf(Target, Pname, Param) -> 'ok' when Target :: enum(),Pname :: enum(),Param :: float().
 texParameterf(Target,Pname,Param) ->
   cast(5258, <<Target:?GLenum,Pname:?GLenum,Param:?GLfloat>>).
@@ -6486,70 +2612,7 @@ texParameteriv(Target,Pname,Params) ->
 %% rectangle, cube-mapped or cube-mapped array texturing, respectively.  `Pname'  accepts
 %% the same symbols as  {@link gl:texParameterf/3} , with the same interpretations: 
 %%
-%% `?GL_TEXTURE_MAG_FILTER':  Returns the single-valued texture magnification filter,
-%% a symbolic constant. The initial value is `?GL_LINEAR'. 
-%%
-%% `?GL_TEXTURE_MIN_FILTER':  Returns the single-valued texture minification filter,
-%% a symbolic constant. The initial value is `?GL_NEAREST_MIPMAP_LINEAR'. 
-%%
-%% `?GL_TEXTURE_MIN_LOD':  Returns the single-valued texture minimum level-of-detail
-%% value. The initial value is   -1000. 
-%%
-%% `?GL_TEXTURE_MAX_LOD':  Returns the single-valued texture maximum level-of-detail
-%% value. The initial value is 1000. 
-%%
-%% `?GL_TEXTURE_BASE_LEVEL':  Returns the single-valued base texture mipmap level. The
-%% initial value is 0. 
-%%
-%% `?GL_TEXTURE_MAX_LEVEL':  Returns the single-valued maximum texture mipmap array
-%% level. The initial value is 1000. 
-%%
-%% `?GL_TEXTURE_SWIZZLE_R':  Returns the red component swizzle. The initial value is `?GL_RED'
-%% . 
-%%
-%% `?GL_TEXTURE_SWIZZLE_G':  Returns the green component swizzle. The initial value is `?GL_GREEN'
-%% . 
-%%
-%% `?GL_TEXTURE_SWIZZLE_B':  Returns the blue component swizzle. The initial value is `?GL_BLUE'
-%% . 
-%%
-%% `?GL_TEXTURE_SWIZZLE_A':  Returns the alpha component swizzle. The initial value is `?GL_ALPHA'
-%% . 
-%%
-%% `?GL_TEXTURE_SWIZZLE_RGBA':  Returns the component swizzle for all channels in a
-%% single query. 
-%%
-%% `?GL_TEXTURE_WRAP_S':  Returns the single-valued wrapping function for texture coordinate
-%%   s, a symbolic constant. The initial value is `?GL_REPEAT'. 
-%%
-%% `?GL_TEXTURE_WRAP_T':  Returns the single-valued wrapping function for texture coordinate
-%%   t, a symbolic constant. The initial value is `?GL_REPEAT'. 
-%%
-%% `?GL_TEXTURE_WRAP_R':  Returns the single-valued wrapping function for texture coordinate
-%%   r, a symbolic constant. The initial value is `?GL_REPEAT'. 
-%%
-%% `?GL_TEXTURE_BORDER_COLOR':  Returns four integer or floating-point numbers that
-%% comprise the RGBA color of the texture border. Floating-point values are returned in the
-%% range  [0 1]. Integer values are returned as a linear mapping of the internal floating-point
-%% representation such that 1.0 maps to the most positive representable integer and   -1.0
-%% maps to the most negative representable integer. The initial value is (0, 0, 0, 0). 
-%%
-%% `?GL_TEXTURE_COMPARE_MODE':  Returns a single-valued texture comparison mode, a symbolic
-%% constant. The initial value is `?GL_NONE'. See  {@link gl:texParameterf/3} . 
-%%
-%% `?GL_TEXTURE_COMPARE_FUNC':  Returns a single-valued texture comparison function,
-%% a symbolic constant. The initial value is `?GL_LEQUAL'. See  {@link gl:texParameterf/3} .
-%% 
-%%
-%%  In addition to the parameters that may be set with  {@link gl:texParameterf/3} , ``gl:getTexParameter''
-%%  accepts the following read-only parameters: 
-%%
-%% `?GL_TEXTURE_IMMUTABLE_FORMAT':  Returns non-zero if the texture has an immutable
-%% format. Textures become immutable if their storage is specified with  {@link gl:texStorage1D/4} 
-%% ,  {@link gl:texStorage2D/5}  or  {@link gl:texStorage3D/6} . The initial value is `?GL_FALSE'
-%% . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetTexParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetTexParameter.xhtml">external</a> documentation.
 -spec getTexParameterfv(Target, Pname) -> {float(),float(),float(),float()} when Target :: enum(),Pname :: enum().
 getTexParameterfv(Target,Pname) ->
   call(5262, <<Target:?GLenum,Pname:?GLenum>>).
@@ -6570,67 +2633,7 @@ getTexParameteriv(Target,Pname) ->
 %% , `?GL_TEXTURE_CUBE_MAP_POSITIVE_Z', `?GL_TEXTURE_CUBE_MAP_NEGATIVE_Z', or `?GL_PROXY_TEXTURE_CUBE_MAP'
 %% . 
 %%
-%% `?GL_MAX_TEXTURE_SIZE', and `?GL_MAX_3D_TEXTURE_SIZE' are not really descriptive
-%% enough. It has to report the largest square texture image that can be accommodated with
-%% mipmaps and borders, but a long skinny texture, or a texture without mipmaps and borders,
-%% may easily fit in texture memory. The proxy targets allow the user to more accurately
-%% query whether the GL can accommodate a texture of a given configuration. If the texture
-%% cannot be accommodated, the texture state variables, which may be queried with ``gl:getTexLevelParameter''
-%% , are set to 0. If the texture can be accommodated, the texture state values will be set
-%% as they would be set for a non-proxy target. 
-%%
-%%  `Pname'  specifies the texture parameter whose value or values will be returned. 
-%%
-%%  The accepted parameter names are as follows: 
-%%
-%% `?GL_TEXTURE_WIDTH':  `Params'  returns a single value, the width of the texture
-%% image. This value includes the border of the texture image. The initial value is 0. 
-%%
-%% `?GL_TEXTURE_HEIGHT':  `Params'  returns a single value, the height of the texture
-%% image. This value includes the border of the texture image. The initial value is 0. 
-%%
-%% `?GL_TEXTURE_DEPTH':  `Params'  returns a single value, the depth of the texture
-%% image. This value includes the border of the texture image. The initial value is 0. 
-%%
-%% `?GL_TEXTURE_INTERNAL_FORMAT':  `Params'  returns a single value, the internal
-%% format of the texture image. 
-%%
-%% `?GL_TEXTURE_RED_TYPE',
-%%
-%% `?GL_TEXTURE_GREEN_TYPE',
-%%
-%% `?GL_TEXTURE_BLUE_TYPE',
-%%
-%% `?GL_TEXTURE_ALPHA_TYPE',
-%%
-%% `?GL_TEXTURE_DEPTH_TYPE':  The data type used to store the component. The types `?GL_NONE'
-%% , `?GL_SIGNED_NORMALIZED', `?GL_UNSIGNED_NORMALIZED', `?GL_FLOAT', `?GL_INT'
-%% , and `?GL_UNSIGNED_INT' may be returned to indicate signed normalized fixed-point,
-%% unsigned normalized fixed-point, floating-point, integer unnormalized, and unsigned integer
-%% unnormalized components, respectively. 
-%%
-%% `?GL_TEXTURE_RED_SIZE',
-%%
-%% `?GL_TEXTURE_GREEN_SIZE',
-%%
-%% `?GL_TEXTURE_BLUE_SIZE',
-%%
-%% `?GL_TEXTURE_ALPHA_SIZE',
-%%
-%% `?GL_TEXTURE_DEPTH_SIZE':  The internal storage resolution of an individual component.
-%% The resolution chosen by the GL will be a close match for the resolution requested by
-%% the user with the component argument of  {@link gl:texImage1D/8} ,  {@link gl:texImage2D/9} ,  {@link gl:texImage3D/10} 
-%% ,  {@link gl:copyTexImage1D/7} , and  {@link gl:copyTexImage2D/8} . The initial value is 0. 
-%%
-%% `?GL_TEXTURE_COMPRESSED':  `Params'  returns a single boolean value indicating
-%% if the texture image is stored in a compressed internal format. The initiali value is `?GL_FALSE'
-%% . 
-%%
-%% `?GL_TEXTURE_COMPRESSED_IMAGE_SIZE':  `Params'  returns a single integer value,
-%% the number of unsigned bytes of the compressed texture image that would be returned from  {@link gl:getCompressedTexImage/3} 
-%% . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetTexLevelParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetTexLevelParameter.xhtml">external</a> documentation.
 -spec getTexLevelParameterfv(Target, Level, Pname) -> {float()} when Target :: enum(),Level :: integer(),Pname :: enum().
 getTexLevelParameterfv(Target,Level,Pname) ->
   call(5264, <<Target:?GLenum,Level:?GLint,Pname:?GLenum>>).
@@ -6647,107 +2650,7 @@ getTexLevelParameteriv(Target,Level,Pname) ->
 %% which texturing is enabled. To enable and disable one-dimensional texturing, call  {@link gl:enable/1} 
 %%  and  {@link gl:enable/1}  with argument `?GL_TEXTURE_1D'. 
 %%
-%%  Texture images are defined with ``gl:texImage1D''. The arguments describe the parameters
-%% of the texture image, such as width, width of the border, level-of-detail number (see  {@link gl:texParameterf/3} 
-%% ), and the internal resolution and format used to store the image. The last three arguments
-%% describe how the image is represented in memory. 
-%%
-%%  If  `Target'  is `?GL_PROXY_TEXTURE_1D', no data is read from  `Data' , but
-%% all of the texture image state is recalculated, checked for consistency, and checked against
-%% the implementation's capabilities. If the implementation cannot handle a texture of the
-%% requested texture size, it sets all of the image state to 0, but does not generate an
-%% error (see  {@link gl:getError/0} ). To query for an entire mipmap array, use an image array
-%% level greater than or equal to 1. 
-%%
-%%  If  `Target'  is `?GL_TEXTURE_1D', data is read from  `Data'  as a sequence
-%% of signed or unsigned bytes, shorts, or longs, or single-precision floating-point values,
-%% depending on  `Type' . These values are grouped into sets of one, two, three, or four
-%% values, depending on  `Format' , to form elements. Each data byte is treated as eight
-%% 1-bit elements, with bit ordering determined by `?GL_UNPACK_LSB_FIRST' (see  {@link gl:pixelStoref/2} 
-%% ). 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a texture image is specified,  `Data'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  The first element corresponds to the left end of the texture array. Subsequent elements
-%% progress left-to-right through the remaining texels in the texture array. The final element
-%% corresponds to the right end of the texture array. 
-%%
-%%  `Format'  determines the composition of each element in  `Data' . It can assume
-%% one of these symbolic values: 
-%%
-%% `?GL_RED':  Each element is a single red component. The GL converts it to floating
-%% point and assembles it into an RGBA element by attaching 0 for green and blue, and 1 for
-%% alpha. Each component is then multiplied by the signed scale factor `?GL_c_SCALE',
-%% added to the signed bias `?GL_c_BIAS', and clamped to the range [0,1]. 
-%%
-%% `?GL_RG':  Each element is a single red/green double The GL converts it to floating
-%% point and assembles it into an RGBA element by attaching 0 for blue, and 1 for alpha.
-%% Each component is then multiplied by the signed scale factor `?GL_c_SCALE', added
-%% to the signed bias `?GL_c_BIAS', and clamped to the range [0,1]. 
-%%
-%% `?GL_RGB'
-%%
-%% `?GL_BGR':  Each element is an RGB triple. The GL converts it to floating point and
-%% assembles it into an RGBA element by attaching 1 for alpha. Each component is then multiplied
-%% by the signed scale factor `?GL_c_SCALE', added to the signed bias `?GL_c_BIAS',
-%% and clamped to the range [0,1]. 
-%%
-%% `?GL_RGBA'
-%%
-%% `?GL_BGRA':  Each element contains all four components. Each component is multiplied
-%% by the signed scale factor `?GL_c_SCALE', added to the signed bias `?GL_c_BIAS',
-%% and clamped to the range [0,1]. 
-%%
-%% `?GL_DEPTH_COMPONENT':  Each element is a single depth value. The GL converts it
-%% to floating point, multiplies by the signed scale factor `?GL_DEPTH_SCALE', adds
-%% the signed bias `?GL_DEPTH_BIAS', and clamps to the range [0,1]. 
-%%
-%%  If an application wants to store the texture at a certain resolution or in a certain
-%% format, it can request the resolution and format with  `InternalFormat' . The GL will
-%% choose an internal representation that closely approximates that requested by  `InternalFormat' 
-%% , but it may not match exactly. (The representations specified by `?GL_RED', `?GL_RG'
-%% , `?GL_RGB' and `?GL_RGBA' must match exactly.) 
-%%
-%%  `InternalFormat'  may be one of the base internal formats shown in Table 1, below 
-%%
-%%  `InternalFormat'  may also be one of the sized internal formats shown in Table 2,
-%% below 
-%%
-%%  Finally,  `InternalFormat'  may also be one of the generic or compressed compressed
-%% texture formats shown in Table 3 below 
-%%
-%%   If the  `InternalFormat'  parameter is one of the generic compressed formats,  `?GL_COMPRESSED_RED'
-%% , `?GL_COMPRESSED_RG',  `?GL_COMPRESSED_RGB', or  `?GL_COMPRESSED_RGBA',
-%% the GL will replace the internal format with the symbolic constant for a specific internal
-%% format and compress the texture before storage. If no corresponding internal format is
-%% available, or the GL can not compress that image for any reason, the internal format is
-%% instead replaced with a corresponding base internal format. 
-%%
-%%  If the  `InternalFormat'  parameter is     `?GL_SRGB',    `?GL_SRGB8',    `?GL_SRGB_ALPHA'
-%% or    `?GL_SRGB8_ALPHA8', the texture is treated as if the red, green, or blue components
-%% are encoded in the sRGB color space. Any alpha component is left unchanged. The conversion
-%% from the sRGB encoded component      c s    to a linear component      c l is:   
-%%
-%%  c l={ c s/12.92if c s&amp;le; 0.04045( c s+0.055/1.055) 2.4if c s&gt; 0.04045
-%%
-%%     Assume        c s    is the sRGB component in the range [0,1]. 
-%%
-%%  Use the `?GL_PROXY_TEXTURE_1D' target to try out a resolution and format. The implementation
-%% will update and recompute its best match for the requested storage resolution and format.
-%% To then query this state, call  {@link gl:getTexLevelParameterfv/3} . If the texture cannot
-%% be accommodated, texture state is set to 0. 
-%%
-%%  A one-component texture image uses only the red component of the RGBA color from  `Data' 
-%% . A two-component image uses the R and A values. A three-component image uses the R, G,
-%% and B values. A four-component image uses all of the RGBA components. 
-%%
-%%  Image-based shadowing can be enabled by comparing texture r coordinates to depth texture
-%% values to generate a boolean result. See  {@link gl:texParameterf/3}  for details on texture
-%% comparison. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexImage1D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexImage1D.xhtml">external</a> documentation.
 -spec texImage1D(Target, Level, InternalFormat, Width, Border, Format, Type, Pixels) -> 'ok' when Target :: enum(),Level :: integer(),InternalFormat :: integer(),Width :: integer(),Border :: integer(),Format :: enum(),Type :: enum(),Pixels :: offset()|mem().
 texImage1D(Target,Level,InternalFormat,Width,Border,Format,Type,Pixels) when  is_integer(Pixels) ->
   cast(5266, <<Target:?GLenum,Level:?GLint,InternalFormat:?GLint,Width:?GLsizei,Border:?GLint,Format:?GLenum,Type:?GLenum,Pixels:?GLuint>>);
@@ -6759,117 +2662,7 @@ texImage1D(Target,Level,InternalFormat,Width,Border,Format,Type,Pixels) ->
 %%
 %%  Texturing allows elements of an image array to be read by shaders. 
 %%
-%%  To define texture images, call ``gl:texImage2D''. The arguments describe the parameters
-%% of the texture image, such as height, width, width of the border, level-of-detail number
-%% (see  {@link gl:texParameterf/3} ), and number of color components provided. The last three
-%% arguments describe how the image is represented in memory. 
-%%
-%%  If  `Target'  is `?GL_PROXY_TEXTURE_2D', `?GL_PROXY_TEXTURE_1D_ARRAY', `?GL_PROXY_TEXTURE_CUBE_MAP'
-%% , or `?GL_PROXY_TEXTURE_RECTANGLE', no data is read from  `Data' , but all of
-%% the texture image state is recalculated, checked for consistency, and checked against
-%% the implementation's capabilities. If the implementation cannot handle a texture of the
-%% requested texture size, it sets all of the image state to 0, but does not generate an
-%% error (see  {@link gl:getError/0} ). To query for an entire mipmap array, use an image array
-%% level greater than or equal to 1. 
-%%
-%%  If  `Target'  is `?GL_TEXTURE_2D', `?GL_TEXTURE_RECTANGLE' or one of the `?GL_TEXTURE_CUBE_MAP'
-%%  targets, data is read from  `Data'  as a sequence of signed or unsigned bytes, shorts,
-%% or longs, or single-precision floating-point values, depending on  `Type' . These values
-%% are grouped into sets of one, two, three, or four values, depending on  `Format' ,
-%% to form elements. Each data byte is treated as eight 1-bit elements, with bit ordering
-%% determined by `?GL_UNPACK_LSB_FIRST' (see  {@link gl:pixelStoref/2} ). 
-%%
-%%  If  `Target'  is `?GL_TEXTURE_1D_ARRAY', data is interpreted as an array of one-dimensional
-%% images. 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a texture image is specified,  `Data'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  The first element corresponds to the lower left corner of the texture image. Subsequent
-%% elements progress left-to-right through the remaining texels in the lowest row of the
-%% texture image, and then in successively higher rows of the texture image. The final element
-%% corresponds to the upper right corner of the texture image. 
-%%
-%%  `Format'  determines the composition of each element in  `Data' . It can assume
-%% one of these symbolic values: 
-%%
-%% `?GL_RED':  Each element is a single red component. The GL converts it to floating
-%% point and assembles it into an RGBA element by attaching 0 for green and blue, and 1 for
-%% alpha. Each component is then multiplied by the signed scale factor `?GL_c_SCALE',
-%% added to the signed bias `?GL_c_BIAS', and clamped to the range [0,1]. 
-%%
-%% `?GL_RG':  Each element is a red/green double. The GL converts it to floating point
-%% and assembles it into an RGBA element by attaching 0 for blue, and 1 for alpha. Each component
-%% is then multiplied by the signed scale factor `?GL_c_SCALE', added to the signed
-%% bias `?GL_c_BIAS', and clamped to the range [0,1]. 
-%%
-%% `?GL_RGB'
-%%
-%% `?GL_BGR':  Each element is an RGB triple. The GL converts it to floating point and
-%% assembles it into an RGBA element by attaching 1 for alpha. Each component is then multiplied
-%% by the signed scale factor `?GL_c_SCALE', added to the signed bias `?GL_c_BIAS',
-%% and clamped to the range [0,1]. 
-%%
-%% `?GL_RGBA'
-%%
-%% `?GL_BGRA':  Each element contains all four components. Each component is multiplied
-%% by the signed scale factor `?GL_c_SCALE', added to the signed bias `?GL_c_BIAS',
-%% and clamped to the range [0,1]. 
-%%
-%% `?GL_DEPTH_COMPONENT':  Each element is a single depth value. The GL converts it
-%% to floating point, multiplies by the signed scale factor `?GL_DEPTH_SCALE', adds
-%% the signed bias `?GL_DEPTH_BIAS', and clamps to the range [0,1]. 
-%%
-%% `?GL_DEPTH_STENCIL':  Each element is a pair of depth and stencil values. The depth
-%% component of the pair is interpreted as in `?GL_DEPTH_COMPONENT'. The stencil component
-%% is interpreted based on specified the depth + stencil internal format. 
-%%
-%%  If an application wants to store the texture at a certain resolution or in a certain
-%% format, it can request the resolution and format with  `InternalFormat' . The GL will
-%% choose an internal representation that closely approximates that requested by  `InternalFormat' 
-%% , but it may not match exactly. (The representations specified by `?GL_RED', `?GL_RG'
-%% , `?GL_RGB', and `?GL_RGBA' must match exactly.) 
-%%
-%%  `InternalFormat'  may be one of the base internal formats shown in Table 1, below 
-%%
-%%  `InternalFormat'  may also be one of the sized internal formats shown in Table 2,
-%% below 
-%%
-%%  Finally,  `InternalFormat'  may also be one of the generic or compressed compressed
-%% texture formats shown in Table 3 below 
-%%
-%%  If the  `InternalFormat'  parameter is one of the generic compressed formats, `?GL_COMPRESSED_RED'
-%% , `?GL_COMPRESSED_RG', `?GL_COMPRESSED_RGB', or `?GL_COMPRESSED_RGBA',
-%% the GL will replace the internal format with the symbolic constant for a specific internal
-%% format and compress the texture before storage. If no corresponding internal format is
-%% available, or the GL can not compress that image for any reason, the internal format is
-%% instead replaced with a corresponding base internal format. 
-%%
-%%  If the  `InternalFormat'  parameter is  `?GL_SRGB', `?GL_SRGB8', `?GL_SRGB_ALPHA'
-%% , or `?GL_SRGB8_ALPHA8', the texture is treated as if the red, green, or blue components
-%% are encoded in the sRGB color space. Any alpha component is left unchanged. The conversion
-%% from the sRGB encoded component   c s to a linear component   c l is: 
-%%
-%%  c l={ c s/12.92if c s&amp;le; 0.04045( c s+0.055/1.055) 2.4if c s&gt; 0.04045
-%%
-%%  Assume   c s is the sRGB component in the range [0,1]. 
-%%
-%%  Use the `?GL_PROXY_TEXTURE_2D', `?GL_PROXY_TEXTURE_1D_ARRAY', `?GL_PROXY_TEXTURE_RECTANGLE'
-%% , or `?GL_PROXY_TEXTURE_CUBE_MAP' target to try out a resolution and format. The
-%% implementation will update and recompute its best match for the requested storage resolution
-%% and format. To then query this state, call  {@link gl:getTexLevelParameterfv/3} . If the texture
-%% cannot be accommodated, texture state is set to 0. 
-%%
-%%  A one-component texture image uses only the red component of the RGBA color extracted
-%% from  `Data' . A two-component image uses the R and G values. A three-component image
-%% uses the R, G, and B values. A four-component image uses all of the RGBA components. 
-%%
-%%  Image-based shadowing can be enabled by comparing texture r coordinates to depth texture
-%% values to generate a boolean result. See  {@link gl:texParameterf/3}  for details on texture
-%% comparison. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexImage2D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexImage2D.xhtml">external</a> documentation.
 -spec texImage2D(Target, Level, InternalFormat, Width, Height, Border, Format, Type, Pixels) -> 'ok' when Target :: enum(),Level :: integer(),InternalFormat :: integer(),Width :: integer(),Height :: integer(),Border :: integer(),Format :: enum(),Type :: enum(),Pixels :: offset()|mem().
 texImage2D(Target,Level,InternalFormat,Width,Height,Border,Format,Type,Pixels) when  is_integer(Pixels) ->
   cast(5268, <<Target:?GLenum,Level:?GLint,InternalFormat:?GLint,Width:?GLsizei,Height:?GLsizei,Border:?GLint,Format:?GLenum,Type:?GLenum,Pixels:?GLuint>>);
@@ -6888,33 +2681,7 @@ texImage2D(Target,Level,InternalFormat,Width,Height,Border,Format,Type,Pixels) -
 %% array. See the reference page for  {@link gl:texImage1D/8}  for a description of the acceptable
 %% values for the  `Format'  and  `Type'  parameters, respectively. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_PACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a texture image is requested,  `Img'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  To understand the operation of ``gl:getTexImage'', consider the selected internal four-component
-%% texture image to be an RGBA color buffer the size of the image. The semantics of ``gl:getTexImage''
-%%  are then identical to those of  {@link gl:readPixels/7} , with the exception that no pixel
-%% transfer operations are performed, when called with the same  `Format'  and  `Type' ,
-%% with `x' and `y' set to 0, `width' set to the width of the texture image
-%% and `height' set to 1 for 1D images, or to the height of the texture image for 2D
-%% images. 
-%%
-%%  If the selected texture image does not contain four components, the following mappings
-%% are applied. Single-component textures are treated as RGBA buffers with red set to the
-%% single-component value, green set to 0, blue set to 0, and alpha set to 1. Two-component
-%% textures are treated as RGBA buffers with red set to the value of component zero, alpha
-%% set to the value of component one, and green and blue set to 0. Finally, three-component
-%% textures are treated as RGBA buffers with red set to component zero, green set to component
-%% one, blue set to component two, and alpha set to 1. 
-%%
-%%  To determine the required size of  `Img' , use  {@link gl:getTexLevelParameterfv/3}  to
-%% determine the dimensions of the internal texture image, then scale the required number
-%% of pixels by the storage required for each pixel, based on  `Format'  and  `Type' .
-%% Be sure to take the pixel storage parameters into account, especially `?GL_PACK_ALIGNMENT'
-%% . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetTexImage.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetTexImage.xhtml">external</a> documentation.
 -spec getTexImage(Target, Level, Format, Type, Pixels) -> 'ok' when Target :: enum(),Level :: integer(),Format :: enum(),Type :: enum(),Pixels :: mem().
 getTexImage(Target,Level,Format,Type,Pixels) ->
   send_bin(Pixels),
@@ -6926,13 +2693,7 @@ getTexImage(Target,Level,Format,Type,Pixels) ->
 %% that the names form a contiguous set of integers; however, it is guaranteed that none
 %% of the returned names was in use immediately before the call to ``gl:genTextures''. 
 %%
-%%  The generated textures have no dimensionality; they assume the dimensionality of the
-%% texture target to which they are first bound (see  {@link gl:bindTexture/2} ). 
-%%
-%%  Texture names returned by a call to ``gl:genTextures'' are not returned by subsequent
-%% calls, unless they are first deleted with  {@link gl:deleteTextures/1} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenTextures.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGenTextures.xhtml">external</a> documentation.
 -spec genTextures(N) -> [integer()] when N :: integer().
 genTextures(N) ->
   call(5271, <<N:?GLsizei>>).
@@ -6944,10 +2705,7 @@ genTextures(N) ->
 %% for reuse (for example by  {@link gl:genTextures/1} ). If a texture that is currently bound
 %% is deleted, the binding reverts to 0 (the default texture). 
 %%
-%% ``gl:deleteTextures'' silently ignores 0's and names that do not correspond to existing
-%% textures. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteTextures.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteTextures.xhtml">external</a> documentation.
 -spec deleteTextures(Textures) -> 'ok' when Textures :: [integer()].
 deleteTextures(Textures) ->
   TexturesLen = length(Textures),
@@ -6964,43 +2722,7 @@ deleteTextures(Textures) ->
 %% When a texture is bound to a target, the previous binding for that target is automatically
 %% broken. 
 %%
-%%  Texture names are unsigned integers. The value zero is reserved to represent the default
-%% texture for each texture target. Texture names and the corresponding texture contents
-%% are local to the shared object space of the current GL rendering context; two rendering
-%% contexts share texture names only if they explicitly enable sharing between contexts through
-%% the appropriate GL windows interfaces functions. 
-%%
-%%  You must use  {@link gl:genTextures/1}  to generate a set of new texture names. 
-%%
-%%  When a texture is first bound, it assumes the specified target: A texture first bound
-%% to `?GL_TEXTURE_1D' becomes one-dimensional texture, a texture first bound to `?GL_TEXTURE_2D'
-%%  becomes two-dimensional texture, a texture first bound to `?GL_TEXTURE_3D' becomes
-%% three-dimensional texture, a texture first bound to `?GL_TEXTURE_1D_ARRAY' becomes
-%% one-dimensional array texture, a texture first bound to `?GL_TEXTURE_2D_ARRAY' becomes
-%% two-dimensional arary texture, a texture first bound to `?GL_TEXTURE_RECTANGLE' becomes
-%% rectangle texture, a, texture first bound to `?GL_TEXTURE_CUBE_MAP' becomes a cube-mapped
-%% texture, a texture first bound to `?GL_TEXTURE_2D_MULTISAMPLE' becomes a two-dimensional
-%% multisampled texture, and a texture first bound to `?GL_TEXTURE_2D_MULTISAMPLE_ARRAY'
-%% becomes a two-dimensional multisampled array texture. The state of a one-dimensional texture
-%% immediately after it is first bound is equivalent to the state of the default `?GL_TEXTURE_1D'
-%%  at GL initialization, and similarly for the other texture types. 
-%%
-%%  While a texture is bound, GL operations on the target to which it is bound affect the
-%% bound texture, and queries of the target to which it is bound return state from the bound
-%% texture.  In effect, the texture targets become aliases for the textures currently bound
-%% to them, and the texture name zero refers to the default textures that were bound to them
-%% at initialization. 
-%%
-%%  A texture binding created with ``gl:bindTexture'' remains active until a different
-%% texture is bound to the same target, or until the bound texture is deleted with  {@link gl:deleteTextures/1} 
-%% . 
-%%
-%%  Once created, a named texture may be re-bound to its same original target as often as
-%% needed. It is usually much faster to use ``gl:bindTexture'' to bind an existing named
-%% texture to one of the texture targets than it is to reload the texture image using  {@link gl:texImage1D/8} 
-%% ,  {@link gl:texImage2D/9} ,  {@link gl:texImage3D/10}  or another similar function. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindTexture.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindTexture.xhtml">external</a> documentation.
 -spec bindTexture(Target, Texture) -> 'ok' when Target :: enum(),Texture :: integer().
 bindTexture(Target,Texture) ->
   cast(5273, <<Target:?GLenum,Texture:?GLuint>>).
@@ -7010,26 +2732,7 @@ bindTexture(Target,Texture) ->
 %% ``gl:prioritizeTextures'' assigns the  `N'  texture priorities given in  `Priorities' 
 %%  to the  `N'  textures named in  `Textures' . 
 %%
-%%  The GL establishes a ``working set'' of textures that are resident in texture memory.
-%% These textures may be bound to a texture target much more efficiently than textures that
-%% are not resident. By specifying a priority for each texture, ``gl:prioritizeTextures''
-%% allows applications to guide the GL implementation in determining which textures should
-%% be resident. 
-%%
-%%  The priorities given in  `Priorities'  are clamped to the range  [0 1] before they are
-%% assigned. 0 indicates the lowest priority; textures with priority 0 are least likely to
-%% be resident. 1 indicates the highest priority; textures with priority 1 are most likely
-%% to be resident. However, textures are not guaranteed to be resident until they are used. 
-%%
-%% ``gl:prioritizeTextures'' silently ignores attempts to prioritize texture 0 or any texture
-%% name that does not correspond to an existing texture. 
-%%
-%% ``gl:prioritizeTextures'' does not require that any of the textures named by  `Textures' 
-%%  be bound to a texture target.  {@link gl:texParameterf/3}  may also be used to set a texture's
-%% priority, but only if the texture is currently bound. This is the only way to set the
-%% priority of a default texture. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPrioritizeTextures.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glPrioritizeTextures.xml">external</a> documentation.
 -spec prioritizeTextures(Textures, Priorities) -> 'ok' when Textures :: [integer()],Priorities :: [clamp()].
 prioritizeTextures(Textures,Priorities) ->
   TexturesLen = length(Textures),
@@ -7044,20 +2747,7 @@ prioritizeTextures(Textures,Priorities) ->
 %% textures can be bound to a texture target much more efficiently than textures that are
 %% not resident. 
 %%
-%% ``gl:areTexturesResident'' queries the texture residence status of the  `N'  textures
-%% named by the elements of  `Textures' . If all the named textures are resident, ``gl:areTexturesResident''
-%%  returns `?GL_TRUE', and the contents of  `Residences'  are undisturbed. If not
-%% all the named textures are resident, ``gl:areTexturesResident'' returns `?GL_FALSE',
-%% and detailed status is returned in the  `N'  elements of  `Residences' . If an element
-%% of  `Residences'  is `?GL_TRUE', then the texture named by the corresponding element
-%% of  `Textures'  is resident. 
-%%
-%%  The residence status of a single bound texture may also be queried by calling  {@link gl:getTexParameterfv/2} 
-%%  with the `target' argument set to the target to which the texture is bound, and
-%% the `pname' argument set to `?GL_TEXTURE_RESIDENT'. This is the only way that
-%% the residence status of a default texture can be queried. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glAreTexturesResident.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glAreTexturesResident.xml">external</a> documentation.
 -spec areTexturesResident(Textures) -> {0|1,Residences :: [0|1]} when Textures :: [integer()].
 areTexturesResident(Textures) ->
   TexturesLen = length(Textures),
@@ -7070,17 +2760,14 @@ areTexturesResident(Textures) ->
 %% a texture. If  `Texture'  is zero, or is a non-zero value that is not currently the
 %% name of a texture, or if an error occurs, ``gl:isTexture'' returns `?GL_FALSE'. 
 %%
-%%  A name returned by  {@link gl:genTextures/1} , but not yet associated with a texture by
-%% calling  {@link gl:bindTexture/2} , is not the name of a texture. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsTexture.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsTexture.xhtml">external</a> documentation.
 -spec isTexture(Texture) -> 0|1 when Texture :: integer().
 isTexture(Texture) ->
   call(5276, <<Texture:?GLuint>>).
 
 %% @doc glTexSubImage
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexSubImage.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec texSubImage1D(Target, Level, Xoffset, Width, Format, Type, Pixels) -> 'ok' when Target :: enum(),Level :: integer(),Xoffset :: integer(),Width :: integer(),Format :: enum(),Type :: enum(),Pixels :: offset()|mem().
 texSubImage1D(Target,Level,Xoffset,Width,Format,Type,Pixels) when  is_integer(Pixels) ->
   cast(5277, <<Target:?GLenum,Level:?GLint,Xoffset:?GLint,Width:?GLsizei,Format:?GLenum,Type:?GLenum,Pixels:?GLuint>>);
@@ -7090,7 +2777,7 @@ texSubImage1D(Target,Level,Xoffset,Width,Format,Type,Pixels) ->
 
 %% @doc glTexSubImage
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexSubImage.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec texSubImage2D(Target, Level, Xoffset, Yoffset, Width, Height, Format, Type, Pixels) -> 'ok' when Target :: enum(),Level :: integer(),Xoffset :: integer(),Yoffset :: integer(),Width :: integer(),Height :: integer(),Format :: enum(),Type :: enum(),Pixels :: offset()|mem().
 texSubImage2D(Target,Level,Xoffset,Yoffset,Width,Height,Format,Type,Pixels) when  is_integer(Pixels) ->
   cast(5279, <<Target:?GLenum,Level:?GLint,Xoffset:?GLint,Yoffset:?GLint,Width:?GLsizei,Height:?GLsizei,Format:?GLenum,Type:?GLenum,Pixels:?GLuint>>);
@@ -7103,30 +2790,7 @@ texSubImage2D(Target,Level,Xoffset,Yoffset,Width,Height,Format,Type,Pixels) ->
 %% ``gl:copyTexImage1D'' defines a one-dimensional texture image with pixels from the current
 %% `?GL_READ_BUFFER'. 
 %%
-%%  The screen-aligned pixel row with left corner at  (x y) and with a length of   width+2(border) defines
-%% the texture array at the mipmap level specified by  `Level' .  `Internalformat' 
-%% specifies the internal format of the texture array. 
-%%
-%%  The pixels in the row are processed exactly as if  {@link gl:readPixels/7}  had been called,
-%% but the process stops just before final conversion. At this point all pixel component
-%% values are clamped to the range  [0 1] and then converted to the texture's internal format
-%% for storage in the texel array. 
-%%
-%%  Pixel ordering is such that lower   x screen coordinates correspond to lower texture
-%% coordinates. 
-%%
-%%  If any of the pixels within the specified row of the current `?GL_READ_BUFFER' are
-%% outside the window associated with the current rendering context, then the values obtained
-%% for those pixels are undefined. 
-%%
-%% ``gl:copyTexImage1D'' defines a one-dimensional texture image with pixels from the current
-%% `?GL_READ_BUFFER'. 
-%%
-%%  When  `Internalformat'  is one of the sRGB types, the GL does not automatically convert
-%% the source pixels to the sRGB color space. In this case, the ``gl:pixelMap'' function
-%% can be used to accomplish the conversion. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCopyTexImage1D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCopyTexImage1D.xhtml">external</a> documentation.
 -spec copyTexImage1D(Target, Level, Internalformat, X, Y, Width, Border) -> 'ok' when Target :: enum(),Level :: integer(),Internalformat :: enum(),X :: integer(),Y :: integer(),Width :: integer(),Border :: integer().
 copyTexImage1D(Target,Level,Internalformat,X,Y,Width,Border) ->
   cast(5281, <<Target:?GLenum,Level:?GLint,Internalformat:?GLenum,X:?GLint,Y:?GLint,Width:?GLsizei,Border:?GLint>>).
@@ -7136,28 +2800,7 @@ copyTexImage1D(Target,Level,Internalformat,X,Y,Width,Border) ->
 %% ``gl:copyTexImage2D'' defines a two-dimensional texture image, or cube-map texture image
 %% with pixels from the current `?GL_READ_BUFFER'. 
 %%
-%%  The screen-aligned pixel rectangle with lower left corner at ( `X' ,  `Y' ) and
-%% with a width of   width+2(border) and a height of  height+2(border) defines the texture array at the mipmap
-%% level specified by  `Level' .  `Internalformat'  specifies the internal format of
-%% the texture array. 
-%%
-%%  The pixels in the rectangle are processed exactly as if  {@link gl:readPixels/7}  had been
-%% called, but the process stops just before final conversion. At this point all pixel component
-%% values are clamped to the range  [0 1] and then converted to the texture's internal format
-%% for storage in the texel array. 
-%%
-%%  Pixel ordering is such that lower   x and   y screen coordinates correspond to lower   s
-%% and   t texture coordinates. 
-%%
-%%  If any of the pixels within the specified rectangle of the current `?GL_READ_BUFFER'
-%% are outside the window associated with the current rendering context, then the values
-%% obtained for those pixels are undefined. 
-%%
-%%  When  `Internalformat'  is one of the sRGB types, the GL does not automatically convert
-%% the source pixels to the sRGB color space. In this case, the ``gl:pixelMap'' function
-%% can be used to accomplish the conversion. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCopyTexImage2D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCopyTexImage2D.xhtml">external</a> documentation.
 -spec copyTexImage2D(Target, Level, Internalformat, X, Y, Width, Height, Border) -> 'ok' when Target :: enum(),Level :: integer(),Internalformat :: enum(),X :: integer(),Y :: integer(),Width :: integer(),Height :: integer(),Border :: integer().
 copyTexImage2D(Target,Level,Internalformat,X,Y,Width,Height,Border) ->
   cast(5282, <<Target:?GLenum,Level:?GLint,Internalformat:?GLenum,X:?GLint,Y:?GLint,Width:?GLsizei,Height:?GLsizei,Border:?GLint>>).
@@ -7168,25 +2811,7 @@ copyTexImage2D(Target,Level,Internalformat,X,Y,Width,Height,Border) ->
 %% pixels from the current `?GL_READ_BUFFER' (rather than from main memory, as is the
 %% case for  {@link gl:texSubImage1D/7} ). 
 %%
-%%  The screen-aligned pixel row with left corner at ( `X' ,  `Y' ), and with length  `Width' 
-%%  replaces the portion of the texture array with x indices  `Xoffset'  through   xoffset
-%% +width-1, inclusive. The destination in the texture array may not include any texels outside
-%% the texture array as it was originally specified. 
-%%
-%%  The pixels in the row are processed exactly as if  {@link gl:readPixels/7}  had been called,
-%% but the process stops just before final conversion. At this point, all pixel component
-%% values are clamped to the range  [0 1] and then converted to the texture's internal format
-%% for storage in the texel array. 
-%%
-%%  It is not an error to specify a subtexture with zero width, but such a specification
-%% has no effect. If any of the pixels within the specified row of the current `?GL_READ_BUFFER'
-%%  are outside the read window associated with the current rendering context, then the values
-%% obtained for those pixels are undefined. 
-%%
-%%  No change is made to the `internalformat', `width', or `border' parameters
-%% of the specified texture array or to texel values outside the specified subregion. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCopyTexSubImage1D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCopyTexSubImage1D.xhtml">external</a> documentation.
 -spec copyTexSubImage1D(Target, Level, Xoffset, X, Y, Width) -> 'ok' when Target :: enum(),Level :: integer(),Xoffset :: integer(),X :: integer(),Y :: integer(),Width :: integer().
 copyTexSubImage1D(Target,Level,Xoffset,X,Y,Width) ->
   cast(5283, <<Target:?GLenum,Level:?GLint,Xoffset:?GLint,X:?GLint,Y:?GLint,Width:?GLsizei>>).
@@ -7197,36 +2822,14 @@ copyTexSubImage1D(Target,Level,Xoffset,X,Y,Width) ->
 %% image or cube-map texture image with pixels from the current `?GL_READ_BUFFER' (rather
 %% than from main memory, as is the case for  {@link gl:texSubImage1D/7} ). 
 %%
-%%  The screen-aligned pixel rectangle with lower left corner at (x y) and with width  `Width' 
-%% and height  `Height'  replaces the portion of the texture array with x indices  `Xoffset' 
-%%  through   xoffset+width-1, inclusive, and y indices  `Yoffset'  through   yoffset+height
-%% -1, inclusive, at the mipmap level specified by  `Level' . 
-%%
-%%  The pixels in the rectangle are processed exactly as if  {@link gl:readPixels/7}  had been
-%% called, but the process stops just before final conversion. At this point, all pixel component
-%% values are clamped to the range  [0 1] and then converted to the texture's internal format
-%% for storage in the texel array. 
-%%
-%%  The destination rectangle in the texture array may not include any texels outside the
-%% texture array as it was originally specified. It is not an error to specify a subtexture
-%% with zero width or height, but such a specification has no effect. 
-%%
-%%  If any of the pixels within the specified rectangle of the current `?GL_READ_BUFFER'
-%% are outside the read window associated with the current rendering context, then the values
-%% obtained for those pixels are undefined. 
-%%
-%%  No change is made to the `internalformat', `width', `height', or `border'
-%%  parameters of the specified texture array or to texel values outside the specified subregion.
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCopyTexSubImage2D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCopyTexSubImage2D.xhtml">external</a> documentation.
 -spec copyTexSubImage2D(Target, Level, Xoffset, Yoffset, X, Y, Width, Height) -> 'ok' when Target :: enum(),Level :: integer(),Xoffset :: integer(),Yoffset :: integer(),X :: integer(),Y :: integer(),Width :: integer(),Height :: integer().
 copyTexSubImage2D(Target,Level,Xoffset,Yoffset,X,Y,Width,Height) ->
   cast(5284, <<Target:?GLenum,Level:?GLint,Xoffset:?GLint,Yoffset:?GLint,X:?GLint,Y:?GLint,Width:?GLsizei,Height:?GLsizei>>).
 
 %% @doc glMap
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMap.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec map1d(Target, U1, U2, Stride, Order, Points) -> 'ok' when Target :: enum(),U1 :: float(),U2 :: float(),Stride :: integer(),Order :: integer(),Points :: binary().
 map1d(Target,U1,U2,Stride,Order,Points) ->
   send_bin(Points),
@@ -7234,7 +2837,7 @@ map1d(Target,U1,U2,Stride,Order,Points) ->
 
 %% @doc glMap
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMap.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec map1f(Target, U1, U2, Stride, Order, Points) -> 'ok' when Target :: enum(),U1 :: float(),U2 :: float(),Stride :: integer(),Order :: integer(),Points :: binary().
 map1f(Target,U1,U2,Stride,Order,Points) ->
   send_bin(Points),
@@ -7242,7 +2845,7 @@ map1f(Target,U1,U2,Stride,Order,Points) ->
 
 %% @doc glMap
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMap.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec map2d(Target, U1, U2, Ustride, Uorder, V1, V2, Vstride, Vorder, Points) -> 'ok' when Target :: enum(),U1 :: float(),U2 :: float(),Ustride :: integer(),Uorder :: integer(),V1 :: float(),V2 :: float(),Vstride :: integer(),Vorder :: integer(),Points :: binary().
 map2d(Target,U1,U2,Ustride,Uorder,V1,V2,Vstride,Vorder,Points) ->
   send_bin(Points),
@@ -7250,7 +2853,7 @@ map2d(Target,U1,U2,Ustride,Uorder,V1,V2,Vstride,Vorder,Points) ->
 
 %% @doc glMap
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMap.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec map2f(Target, U1, U2, Ustride, Uorder, V1, V2, Vstride, Vorder, Points) -> 'ok' when Target :: enum(),U1 :: float(),U2 :: float(),Ustride :: integer(),Uorder :: integer(),V1 :: float(),V2 :: float(),Vstride :: integer(),Vorder :: integer(),Points :: binary().
 map2f(Target,U1,U2,Ustride,Uorder,V1,V2,Vstride,Vorder,Points) ->
   send_bin(Points),
@@ -7262,31 +2865,7 @@ map2f(Target,U1,U2,Ustride,Uorder,V1,V2,Vstride,Vorder,Points) ->
 %% parameters.  `Target'  chooses a map,  `Query'  selects a specific parameter, and  `V' 
 %%  points to storage where the values will be returned. 
 %%
-%%  The acceptable values for the  `Target'  parameter are described in the  {@link gl:map1d/6} 
-%%  and  {@link gl:map1d/6}  reference pages. 
-%%
-%%  `Query'  can assume the following values: 
-%%
-%% `?GL_COEFF':  `V'  returns the control points for the evaluator function. One-dimensional
-%% evaluators return   order control points, and two-dimensional evaluators return   uorder×vorder
-%%  control points. Each control point consists of one, two, three, or four integer, single-precision
-%% floating-point, or double-precision floating-point values, depending on the type of the
-%% evaluator. The GL returns two-dimensional control points in row-major order, incrementing
-%% the   uorder index quickly and the   vorder index after each row. Integer values, when
-%% requested, are computed by rounding the internal floating-point values to the nearest
-%% integer values. 
-%%
-%% `?GL_ORDER':  `V'  returns the order of the evaluator function. One-dimensional
-%% evaluators return a single value,  order. The initial value is 1. Two-dimensional evaluators
-%% return two values,  uorder and   vorder. The initial value is 1,1. 
-%%
-%% `?GL_DOMAIN':  `V'  returns the linear   u and   v mapping parameters. One-dimensional
-%% evaluators return two values,  u1 and   u2, as specified by  {@link gl:map1d/6} . Two-dimensional
-%% evaluators return four values ( u1,   u2,   v1, and   v2) as specified by  {@link gl:map1d/6} .
-%% Integer values, when requested, are computed by rounding the internal floating-point values
-%% to the nearest integer values. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetMap.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetMap.xml">external</a> documentation.
 -spec getMapdv(Target, Query, V) -> 'ok' when Target :: enum(),Query :: enum(),V :: mem().
 getMapdv(Target,Query,V) ->
   send_bin(V),
@@ -7313,45 +2892,7 @@ getMapiv(Target,Query,V) ->
 %% To define a map, call  {@link gl:map1d/6}  and  {@link gl:map1d/6} ; to enable and disable it,
 %% call  {@link gl:enable/1}  and  {@link gl:enable/1} . 
 %%
-%%  When one of the ``gl:evalCoord'' commands is issued, all currently enabled maps of
-%% the indicated dimension are evaluated. Then, for each enabled map, it is as if the corresponding
-%% GL command had been issued with the computed value. That is, if `?GL_MAP1_INDEX' or `?GL_MAP2_INDEX'
-%%  is enabled, a  {@link gl:indexd/1}  command is simulated. If `?GL_MAP1_COLOR_4' or `?GL_MAP2_COLOR_4'
-%%  is enabled, a  {@link gl:color3b/3}  command is simulated. If `?GL_MAP1_NORMAL' or `?GL_MAP2_NORMAL'
-%%  is enabled, a normal vector is produced, and if any of `?GL_MAP1_TEXTURE_COORD_1', `?GL_MAP1_TEXTURE_COORD_2'
-%% , `?GL_MAP1_TEXTURE_COORD_3', `?GL_MAP1_TEXTURE_COORD_4', `?GL_MAP2_TEXTURE_COORD_1'
-%% , `?GL_MAP2_TEXTURE_COORD_2', `?GL_MAP2_TEXTURE_COORD_3', or `?GL_MAP2_TEXTURE_COORD_4'
-%%  is enabled, then an appropriate  {@link gl:texCoord1d/1}  command is simulated. 
-%%
-%%  For color, color index, normal, and texture coordinates the GL uses evaluated values
-%% instead of current values for those evaluations that are enabled, and current values otherwise,
-%% However, the evaluated values do not update the current values. Thus, if  {@link gl:vertex2d/2} 
-%%  commands are interspersed with ``gl:evalCoord'' commands, the color, normal, and texture
-%% coordinates associated with the  {@link gl:vertex2d/2}  commands are not affected by the values
-%% generated by the ``gl:evalCoord'' commands, but only by the most recent  {@link gl:color3b/3} 
-%% ,  {@link gl:indexd/1} ,  {@link gl:normal3b/3} , and  {@link gl:texCoord1d/1}  commands. 
-%%
-%%  No commands are issued for maps that are not enabled. If more than one texture evaluation
-%% is enabled for a particular dimension (for example, `?GL_MAP2_TEXTURE_COORD_1' and `?GL_MAP2_TEXTURE_COORD_2'
-%% ), then only the evaluation of the map that produces the larger number of coordinates
-%% (in this case, `?GL_MAP2_TEXTURE_COORD_2') is carried out. `?GL_MAP1_VERTEX_4'
-%% overrides `?GL_MAP1_VERTEX_3', and `?GL_MAP2_VERTEX_4' overrides `?GL_MAP2_VERTEX_3'
-%% , in the same manner. If neither a three- nor a four-component vertex map is enabled for
-%% the specified dimension, the ``gl:evalCoord'' command is ignored. 
-%%
-%%  If you have enabled automatic normal generation, by calling  {@link gl:enable/1}  with argument
-%% `?GL_AUTO_NORMAL', ``gl:evalCoord2'' generates surface normals analytically, regardless
-%% of the contents or enabling of the `?GL_MAP2_NORMAL' map. Let 
-%%
-%%  m=((&amp;PartialD; p)/(&amp;PartialD; u))×((&amp;PartialD; p)/(&amp;PartialD; v))
-%%
-%%  Then the generated normal   n is  n=m/(||m||)
-%%
-%%  If automatic normal generation is disabled, the corresponding normal map `?GL_MAP2_NORMAL'
-%% , if enabled, is used to produce a normal. If neither automatic normal generation nor
-%% a normal map is enabled, no normal is generated for ``gl:evalCoord2'' commands. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glEvalCoord.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glEvalCoord.xml">external</a> documentation.
 -spec evalCoord1d(U) -> 'ok' when U :: float().
 evalCoord1d(U) ->
   cast(5292, <<U:?GLdouble>>).
@@ -7397,31 +2938,7 @@ evalCoord2fv({U,V}) ->  evalCoord2f(U,V).
 %% the integer domain of a one- or two-dimensional grid, whose range is the domain of the
 %% evaluation maps specified by  {@link gl:map1d/6}  and  {@link gl:map1d/6} . 
 %%
-%% ``gl:mapGrid1'' and ``gl:mapGrid2'' specify the linear grid mappings between the   i
-%% (or   i and   j) integer grid coordinates, to the   u (or   u and   v) floating-point
-%% evaluation map coordinates. See  {@link gl:map1d/6}  and  {@link gl:map1d/6}  for details of how
-%%   u and   v coordinates are evaluated. 
-%%
-%% ``gl:mapGrid1'' specifies a single linear mapping such that integer grid coordinate
-%% 0 maps exactly to  `U1' , and integer grid coordinate  `Un'  maps exactly to  `U2' 
-%% . All other integer grid coordinates   i are mapped so that 
-%%
-%%  u=i(u2-u1)/un+u1
-%%
-%% ``gl:mapGrid2'' specifies two such linear mappings. One maps integer grid coordinate  
-%% i=0 exactly to  `U1' , and integer grid coordinate   i=un exactly to  `U2' . The
-%% other maps integer grid coordinate   j=0 exactly to  `V1' , and integer grid coordinate
-%%   j=vn exactly to  `V2' . Other integer grid coordinates   i and   j are mapped such
-%% that 
-%%
-%%  u=i(u2-u1)/un+u1
-%%
-%%  v=j(v2-v1)/vn+v1
-%%
-%%  The mappings specified by ``gl:mapGrid'' are used identically by  {@link gl:evalMesh1/3} 
-%% and  {@link gl:evalPoint1/1} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMapGrid.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glMapGrid.xml">external</a> documentation.
 -spec mapGrid1d(Un, U1, U2) -> 'ok' when Un :: integer(),U1 :: float(),U2 :: float().
 mapGrid1d(Un,U1,U2) ->
   cast(5296, <<Un:?GLint,0:32,U1:?GLdouble,U2:?GLdouble>>).
@@ -7452,23 +2969,7 @@ mapGrid2f(Un,U1,U2,Vn,V1,V2) ->
 %% . Calling ``gl:evalPoint1'' is equivalent to calling  glEvalCoord1(  i.&amp;Delta; u+u
 %% 1 );  where &amp;Delta; u=(u 2-u 1)/n
 %%
-%%  and   n,   u 1, and   u 2 are the arguments to the most recent  {@link gl:mapGrid1d/3}  command.
-%% The one absolute numeric requirement is that if   i=n, then the value computed from  i.&amp;Delta;
-%%  u+u 1 is exactly   u 2. 
-%%
-%%  In the two-dimensional case, ``gl:evalPoint2'', let 
-%%
-%% &amp;Delta; u=(u 2-u 1)/n
-%%
-%% &amp;Delta; v=(v 2-v 1)/m
-%%
-%%  where   n,   u 1,   u 2,   m,   v 1, and   v 2 are the arguments to the most recent  {@link gl:mapGrid1d/3} 
-%%  command. Then the ``gl:evalPoint2'' command is equivalent to calling  glEvalCoord2(  i.
-%% &amp;Delta; u+u 1, j.&amp;Delta; v+v 1 );  The only absolute numeric requirements are
-%% that if   i=n, then the value computed from  i.&amp;Delta; u+u 1 is exactly   u 2, and
-%% if   j=m, then the value computed from  j.&amp;Delta; v+v 1 is exactly   v 2. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glEvalPoint.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glEvalPoint.xml">external</a> documentation.
 -spec evalPoint1(I) -> 'ok' when I :: integer().
 evalPoint1(I) ->
   cast(5300, <<I:?GLint>>).
@@ -7487,53 +2988,7 @@ evalPoint2(I,J) ->
 %% evaluation maps specified by  {@link gl:map1d/6}  and  {@link gl:map1d/6} .  `Mode'  determines
 %% whether the resulting vertices are connected as points, lines, or filled polygons. 
 %%
-%%  In the one-dimensional case, ``gl:evalMesh1'', the mesh is generated as if the following
-%% code fragment were executed: 
-%%
-%%  glBegin(  `Type'  ); for ( i =  `I1' ; i &lt;=  `I2' ; i += 1 ) glEvalCoord1( 
-%% i.&amp;Delta; u+u 1 ); glEnd();  where 
-%%
-%% &amp;Delta; u=(u 2-u 1)/n
-%%
-%%  and   n,   u 1, and   u 2 are the arguments to the most recent  {@link gl:mapGrid1d/3}  command.
-%% `type' is `?GL_POINTS' if  `Mode'  is `?GL_POINT', or `?GL_LINES'
-%% if  `Mode'  is `?GL_LINE'. 
-%%
-%%  The one absolute numeric requirement is that if   i=n, then the value computed from   i.&amp;Delta;
-%%  u+u 1 is exactly   u 2. 
-%%
-%%  In the two-dimensional case, ``gl:evalMesh2'', let .cp &amp;Delta; u=(u 2-u 1)/n
-%%
-%% &amp;Delta; v=(v 2-v 1)/m
-%%
-%%  where   n,   u 1,   u 2,   m,   v 1, and   v 2 are the arguments to the most recent  {@link gl:mapGrid1d/3} 
-%%  command. Then, if  `Mode'  is `?GL_FILL', the ``gl:evalMesh2'' command is equivalent
-%% to: 
-%%
-%%  for ( j =  `J1' ; j &lt;  `J2' ; j += 1 ) { glBegin( GL_QUAD_STRIP ); for ( i =  `I1' 
-%% ; i &lt;=  `I2' ; i += 1 ) { glEvalCoord2(  i.&amp;Delta; u+u 1, j.&amp;Delta; v+v 1
-%% ); glEvalCoord2(  i.&amp;Delta; u+u 1,(j+1).&amp;Delta; v+v 1 ); } glEnd(); } 
-%%
-%%  If  `Mode'  is `?GL_LINE', then a call to ``gl:evalMesh2'' is equivalent to: 
-%%
-%%  for ( j =  `J1' ; j &lt;=  `J2' ; j += 1 ) { glBegin( GL_LINE_STRIP ); for ( i =  `I1' 
-%% ; i &lt;=  `I2' ; i += 1 ) glEvalCoord2(  i.&amp;Delta; u+u 1, j.&amp;Delta; v+v 1
-%% ); glEnd(); }  for ( i =  `I1' ; i &lt;=  `I2' ; i += 1 ) { glBegin( GL_LINE_STRIP
-%% ); for ( j =  `J1' ; j &lt;=  `J1' ; j += 1 ) glEvalCoord2(  i.&amp;Delta; u+u 1, j.
-%% &amp;Delta; v+v 1 ); glEnd(); } 
-%%
-%%  And finally, if  `Mode'  is `?GL_POINT', then a call to ``gl:evalMesh2'' is
-%% equivalent to: 
-%%
-%%  glBegin( GL_POINTS ); for ( j =  `J1' ; j &lt;=  `J2' ; j += 1 ) for ( i =  `I1' 
-%% ; i &lt;=  `I2' ; i += 1 ) glEvalCoord2(  i.&amp;Delta; u+u 1, j.&amp;Delta; v+v 1
-%% ); glEnd(); 
-%%
-%%  In all three cases, the only absolute numeric requirements are that if   i=n, then the
-%% value computed from   i.&amp;Delta; u+u 1 is exactly  u 2, and if   j=m, then the value
-%% computed from  j.&amp;Delta; v+v 1 is exactly   v 2. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glEvalMesh.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glEvalMesh.xml">external</a> documentation.
 -spec evalMesh1(Mode, I1, I2) -> 'ok' when Mode :: enum(),I1 :: integer(),I2 :: integer().
 evalMesh1(Mode,I1,I2) ->
   cast(5302, <<Mode:?GLenum,I1:?GLint,I2:?GLint>>).
@@ -7550,66 +3005,7 @@ evalMesh2(Mode,I1,I2,J1,J2) ->
 %% pixel blocks, but not buffer clear operations. To enable and disable fog, call  {@link gl:enable/1} 
 %%  and  {@link gl:enable/1}  with argument `?GL_FOG'. 
 %%
-%% ``gl:fog'' assigns the value or values in  `Params'  to the fog parameter specified
-%% by  `Pname' . The following values are accepted for  `Pname' : 
-%%
-%% `?GL_FOG_MODE':  `Params'  is a single integer or floating-point value that specifies
-%% the equation to be used to compute the fog blend factor,   f. Three symbolic constants
-%% are accepted: `?GL_LINEAR', `?GL_EXP', and `?GL_EXP2'. The equations corresponding
-%% to these symbolic constants are defined below. The initial fog mode is `?GL_EXP'. 
-%%
-%% `?GL_FOG_DENSITY':  `Params'  is a single integer or floating-point value that
-%% specifies   density, the fog density used in both exponential fog equations. Only nonnegative
-%% densities are accepted. The initial fog density is 1. 
-%%
-%% `?GL_FOG_START':  `Params'  is a single integer or floating-point value that specifies
-%%   start, the near distance used in the linear fog equation. The initial near distance
-%% is 0. 
-%%
-%% `?GL_FOG_END':  `Params'  is a single integer or floating-point value that specifies
-%%   end, the far distance used in the linear fog equation. The initial far distance is 1. 
-%%
-%% `?GL_FOG_INDEX':  `Params'  is a single integer or floating-point value that specifies
-%%  i f, the fog color index. The initial fog index is 0. 
-%%
-%% `?GL_FOG_COLOR':  `Params'  contains four integer or floating-point values that
-%% specify  C f, the fog color. Integer values are mapped linearly such that the most positive
-%% representable value maps to 1.0, and the most negative representable value maps to   -1.0.
-%% Floating-point values are mapped directly. After conversion, all color components are
-%% clamped to the range  [0 1]. The initial fog color is (0, 0, 0, 0). 
-%%
-%% `?GL_FOG_COORD_SRC':  `Params'  contains either of the following symbolic constants:
-%% `?GL_FOG_COORD' or `?GL_FRAGMENT_DEPTH'. `?GL_FOG_COORD' specifies that
-%% the current fog coordinate should be used as distance value in the fog color computation.
-%% `?GL_FRAGMENT_DEPTH' specifies that the current fragment depth should be used as
-%% distance value in the fog computation. 
-%%
-%%  Fog blends a fog color with each rasterized pixel fragment's post-texturing color using
-%% a blending factor   f. Factor   f is computed in one of three ways, depending on the fog
-%% mode. Let   c be either the distance in eye coordinate from the origin (in the case that
-%% the `?GL_FOG_COORD_SRC' is `?GL_FRAGMENT_DEPTH') or the current fog coordinate
-%% (in the case that `?GL_FOG_COORD_SRC' is `?GL_FOG_COORD'). The equation for `?GL_LINEAR'
-%%  fog is  f=(end-c)/(end-start)
-%%
-%%  The equation for `?GL_EXP' fog is  f=e(-(density. c))
-%%
-%%  The equation for `?GL_EXP2' fog is  f=e(-(density. c)) 2
-%%
-%%  Regardless of the fog mode,  f is clamped to the range  [0 1] after it is computed. Then,
-%% if the GL is in RGBA color mode, the fragment's red, green, and blue colors, represented
-%% by   C r, are replaced by 
-%%
-%% (C r)"=f×C r+(1-f)×C f
-%%
-%%  Fog does not affect a fragment's alpha component. 
-%%
-%%  In color index mode, the fragment's color index   i r is replaced by 
-%%
-%% (i r)"=i r+(1-f)×i f
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFog.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glFog.xml">external</a> documentation.
 -spec fogf(Pname, Param) -> 'ok' when Pname :: enum(),Param :: float().
 fogf(Pname,Param) ->
   cast(5304, <<Pname:?GLenum,Param:?GLfloat>>).
@@ -7642,106 +3038,7 @@ fogiv(Pname,Params) ->
 %% about primitives that would have been rasterized is fed back to the application using
 %% the GL. 
 %%
-%% ``gl:feedbackBuffer'' has three arguments:  `Buffer'  is a pointer to an array of
-%% floating-point values into which feedback information is placed.  `Size'  indicates
-%% the size of the array.  `Type'  is a symbolic constant describing the information that
-%% is fed back for each vertex. ``gl:feedbackBuffer'' must be issued before feedback mode
-%% is enabled (by calling  {@link gl:renderMode/1}  with argument `?GL_FEEDBACK'). Setting
-%% `?GL_FEEDBACK' without establishing the feedback buffer, or calling ``gl:feedbackBuffer''
-%%  while the GL is in feedback mode, is an error. 
-%%
-%%  When  {@link gl:renderMode/1}  is called while in feedback mode, it returns the number of
-%% entries placed in the feedback array and resets the feedback array pointer to the base
-%% of the feedback buffer. The returned value never exceeds  `Size' . If the feedback
-%% data required more room than was available in  `Buffer' ,  {@link gl:renderMode/1}  returns
-%% a negative value. To take the GL out of feedback mode, call  {@link gl:renderMode/1}  with
-%% a parameter value other than `?GL_FEEDBACK'. 
-%%
-%%  While in feedback mode, each primitive, bitmap, or pixel rectangle that would be rasterized
-%% generates a block of values that are copied into the feedback array. If doing so would
-%% cause the number of entries to exceed the maximum, the block is partially written so as
-%% to fill the array (if there is any room left at all), and an overflow flag is set. Each
-%% block begins with a code indicating the primitive type, followed by values that describe
-%% the primitive's vertices and associated data. Entries are also written for bitmaps and
-%% pixel rectangles. Feedback occurs after polygon culling and  {@link gl:polygonMode/2}  interpretation
-%% of polygons has taken place, so polygons that are culled are not returned in the feedback
-%% buffer. It can also occur after polygons with more than three edges are broken up into
-%% triangles, if the GL implementation renders polygons by performing this decomposition. 
-%%
-%%  The  {@link gl:passThrough/1}  command can be used to insert a marker into the feedback
-%% buffer. See  {@link gl:passThrough/1} . 
-%%
-%%  Following is the grammar for the blocks of values written into the feedback buffer. Each
-%% primitive is indicated with a unique identifying value followed by some number of vertices.
-%% Polygon entries include an integer value indicating how many vertices follow. A vertex
-%% is fed back as some number of floating-point values, as determined by  `Type' . Colors
-%% are fed back as four values in RGBA mode and one value in color index mode. 
-%%
-%%  feedbackList  ← feedbackItem feedbackList | feedbackItem 
-%%
-%%  feedbackItem  ← point | lineSegment | polygon | bitmap | pixelRectangle | passThru 
-%%
-%%  point  ←`?GL_POINT_TOKEN' vertex 
-%%
-%%  lineSegment  ←`?GL_LINE_TOKEN' vertex vertex | `?GL_LINE_RESET_TOKEN' vertex
-%% vertex 
-%%
-%%  polygon  ←`?GL_POLYGON_TOKEN' n polySpec 
-%%
-%%  polySpec  ← polySpec vertex | vertex vertex vertex 
-%%
-%%  bitmap  ←`?GL_BITMAP_TOKEN' vertex 
-%%
-%%  pixelRectangle  ←`?GL_DRAW_PIXEL_TOKEN' vertex | `?GL_COPY_PIXEL_TOKEN' vertex
-%% 
-%%
-%%  passThru  ←`?GL_PASS_THROUGH_TOKEN' value 
-%%
-%%  vertex  ← 2d | 3d | 3dColor | 3dColorTexture | 4dColorTexture 
-%%
-%%  2d  ← value value 
-%%
-%%  3d  ← value value value 
-%%
-%%  3dColor  ← value value value color 
-%%
-%%  3dColorTexture  ← value value value color tex 
-%%
-%%  4dColorTexture  ← value value value value color tex 
-%%
-%%  color  ← rgba | index 
-%%
-%%  rgba  ← value value value value 
-%%
-%%  index  ← value 
-%%
-%%  tex  ← value value value value 
-%%
-%% `value' is a floating-point number, and `n' is a floating-point integer giving
-%% the number of vertices in the polygon. `?GL_POINT_TOKEN', `?GL_LINE_TOKEN', `?GL_LINE_RESET_TOKEN'
-%% , `?GL_POLYGON_TOKEN', `?GL_BITMAP_TOKEN', `?GL_DRAW_PIXEL_TOKEN', `?GL_COPY_PIXEL_TOKEN'
-%%  and `?GL_PASS_THROUGH_TOKEN' are symbolic floating-point constants. `?GL_LINE_RESET_TOKEN'
-%%  is returned whenever the line stipple pattern is reset. The data returned as a vertex
-%% depends on the feedback  `Type' . 
-%%
-%%  The following table gives the correspondence between  `Type'  and the number of values
-%% per vertex. `k' is 1 in color index mode and 4 in RGBA mode. 
-%%
-%% <table><tbody><tr><td>` Type '</td><td>` Coordinates '</td><td>` Color '</td>
-%% <td>` Texture '</td><td>` Total Number of Values '</td></tr></tbody><tbody><tr><td>
-%% `?GL_2D'</td><td>`x', `y'</td><td></td><td></td><td> 2 </td></tr><tr><td>`?GL_3D'
-%% </td><td>`x', `y', `z'</td><td></td><td></td><td> 3 </td></tr><tr><td>`?GL_3D_COLOR'
-%% </td><td>`x', `y', `z'</td><td> k</td><td></td><td> 3+k</td></tr><tr><td>`?GL_3D_COLOR_TEXTURE'
-%% </td><td>`x', `y', `z'</td><td> k</td><td> 4 </td><td> 7+k</td></tr><tr><td>
-%% `?GL_4D_COLOR_TEXTURE'</td><td>`x', `y', `z', `w'</td><td> k</td>
-%% <td> 4 </td><td> 8+k</td></tr></tbody></table>
-%%
-%%  Feedback vertex coordinates are in window coordinates, except `w', which is in clip
-%% coordinates. Feedback colors are lighted, if lighting is enabled. Feedback texture coordinates
-%% are generated, if texture coordinate generation is enabled. They are always transformed
-%% by the texture matrix. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFeedbackBuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glFeedbackBuffer.xml">external</a> documentation.
 -spec feedbackBuffer(Size, Type, Buffer) -> 'ok' when Size :: integer(),Type :: enum(),Buffer :: mem().
 feedbackBuffer(Size,Type,Buffer) ->
   send_bin(Buffer),
@@ -7749,18 +3046,9 @@ feedbackBuffer(Size,Type,Buffer) ->
 
 %% @doc Place a marker in the feedback buffer
 %%
-%%  Feedback is a GL render mode. The mode is selected by calling  {@link gl:renderMode/1} 
-%% with `?GL_FEEDBACK'. When the GL is in feedback mode, no pixels are produced by rasterization.
-%% Instead, information about primitives that would have been rasterized is fed back to the
-%% application using the GL. See the  {@link gl:feedbackBuffer/3}  reference page for a description
-%% of the feedback buffer and the values in it. 
-%%
-%% ``gl:passThrough'' inserts a user-defined marker in the feedback buffer when it is executed
-%% in feedback mode.  `Token'  is returned as if it were a primitive; it is indicated
-%% with its own unique identifying value: `?GL_PASS_THROUGH_TOKEN'. The order of ``gl:passThrough''
-%%  commands with respect to the specification of graphics primitives is maintained. 
+%% 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPassThrough.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glPassThrough.xml">external</a> documentation.
 -spec passThrough(Token) -> 'ok' when Token :: float().
 passThrough(Token) ->
   cast(5309, <<Token:?GLfloat>>).
@@ -7774,38 +3062,7 @@ passThrough(Token) ->
 %%  must be issued before selection mode is enabled, and it must not be issued while the
 %% rendering mode is `?GL_SELECT'. 
 %%
-%%  A programmer can use selection to determine which primitives are drawn into some region
-%% of a window. The region is defined by the current modelview and perspective matrices. 
-%%
-%%  In selection mode, no pixel fragments are produced from rasterization. Instead, if a
-%% primitive or a raster position intersects the clipping volume defined by the viewing frustum
-%% and the user-defined clipping planes, this primitive causes a selection hit. (With polygons,
-%% no hit occurs if the polygon is culled.) When a change is made to the name stack, or when
-%%  {@link gl:renderMode/1}  is called, a hit record is copied to  `Buffer'  if any hits
-%% have occurred since the last such event (name stack change or  {@link gl:renderMode/1}  call).
-%% The hit record consists of the number of names in the name stack at the time of the event,
-%% followed by the minimum and maximum depth values of all vertices that hit since the previous
-%% event, followed by the name stack contents, bottom name first. 
-%%
-%%  Depth values (which are in the range [0,1]) are multiplied by   2 32-1, before being
-%% placed in the hit record. 
-%%
-%%  An internal index into  `Buffer'  is reset to 0 whenever selection mode is entered.
-%% Each time a hit record is copied into  `Buffer' , the index is incremented to point
-%% to the cell just past the end of the block of names(emthat is, to the next available cell
-%% If the hit record is larger than the number of remaining locations in  `Buffer' , as
-%% much data as can fit is copied, and the overflow flag is set. If the name stack is empty
-%% when a hit record is copied, that record consists of 0 followed by the minimum and maximum
-%% depth values. 
-%%
-%%  To exit selection mode, call  {@link gl:renderMode/1}  with an argument other than `?GL_SELECT'
-%% . Whenever  {@link gl:renderMode/1}  is called while the render mode is `?GL_SELECT',
-%% it returns the number of hit records copied to  `Buffer' , resets the overflow flag
-%% and the selection buffer pointer, and initializes the name stack to be empty. If the overflow
-%% bit was set when  {@link gl:renderMode/1}  was called, a negative hit record count is returned.
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glSelectBuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glSelectBuffer.xml">external</a> documentation.
 -spec selectBuffer(Size, Buffer) -> 'ok' when Size :: integer(),Buffer :: mem().
 selectBuffer(Size,Buffer) ->
   send_bin(Buffer),
@@ -7817,10 +3074,7 @@ selectBuffer(Size,Buffer) ->
 %% uniquely identified. It consists of an ordered set of unsigned integers. ``gl:initNames''
 %%  causes the name stack to be initialized to its default empty state. 
 %%
-%%  The name stack is always empty while the render mode is not `?GL_SELECT'. Calls to ``gl:initNames''
-%%  while the render mode is not `?GL_SELECT' are ignored. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glInitNames.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glInitNames.xml">external</a> documentation.
 -spec initNames() -> 'ok'.
 initNames() ->
   cast(5311, <<>>).
@@ -7831,12 +3085,7 @@ initNames() ->
 %% uniquely identified. It consists of an ordered set of unsigned integers and is initially
 %% empty. 
 %%
-%% ``gl:loadName'' causes  `Name'  to replace the value on the top of the name stack. 
-%%
-%%  The name stack is always empty while the render mode is not `?GL_SELECT'. Calls to ``gl:loadName''
-%%  while the render mode is not `?GL_SELECT' are ignored. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLoadName.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glLoadName.xml">external</a> documentation.
 -spec loadName(Name) -> 'ok' when Name :: integer().
 loadName(Name) ->
   cast(5312, <<Name:?GLuint>>).
@@ -7847,20 +3096,7 @@ loadName(Name) ->
 %% uniquely identified. It consists of an ordered set of unsigned integers and is initially
 %% empty. 
 %%
-%% ``gl:pushName'' causes  `Name'  to be pushed onto the name stack.  {@link gl:pushName/1} 
-%% pops one name off the top of the stack. 
-%%
-%%  The maximum name stack depth is implementation-dependent; call `?GL_MAX_NAME_STACK_DEPTH'
-%%  to find out the value for a particular implementation. It is an error to push a name
-%% onto a full stack or to pop a name off an empty stack. It is also an error to manipulate
-%% the name stack between the execution of  {@link gl:'begin'/1}  and the corresponding execution
-%% of  {@link gl:'begin'/1} . In any of these cases, the error flag is set and no other change is
-%% made to GL state. 
-%%
-%%  The name stack is always empty while the render mode is not `?GL_SELECT'. Calls to ``gl:pushName''
-%%  or  {@link gl:pushName/1}  while the render mode is not `?GL_SELECT' are ignored. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPushName.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glPushName.xml">external</a> documentation.
 -spec pushName(Name) -> 'ok' when Name :: integer().
 pushName(Name) ->
   cast(5313, <<Name:?GLuint>>).
@@ -7878,7 +3114,7 @@ popName() ->
 %%  for a complete description of the blending operations. Initially the `?GL_BLEND_COLOR'
 %%  is set to (0, 0, 0, 0). 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBlendColor.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBlendColor.xhtml">external</a> documentation.
 -spec blendColor(Red, Green, Blue, Alpha) -> 'ok' when Red :: clamp(),Green :: clamp(),Blue :: clamp(),Alpha :: clamp().
 blendColor(Red,Green,Blue,Alpha) ->
   cast(5315, <<Red:?GLclampf,Green:?GLclampf,Blue:?GLclampf,Alpha:?GLclampf>>).
@@ -7891,35 +3127,7 @@ blendColor(Red,Green,Blue,Alpha) ->
 %%  specifies the blend equation for a single draw buffer whereas ``gl:blendEquation''
 %% sets the blend equation for all draw buffers. 
 %%
-%%  These equations use the source and destination blend factors specified by either  {@link gl:blendFunc/2} 
-%%  or  {@link gl:blendFuncSeparate/4} . See  {@link gl:blendFunc/2}  or  {@link gl:blendFuncSeparate/4} 
-%%  for a description of the various blend factors. 
-%%
-%%  In the equations that follow, source and destination color components are referred to
-%% as (R s G s B s A s) and (R d G d B d A d), respectively. The result color is referred to as (R r G r B r A r). The source and destination
-%% blend factors are denoted (s R s G s B s A) and (d R d G d B d A), respectively. For these equations all color components
-%% are understood to have values in the range  [0 1].  <table><tbody><tr><td>` Mode '</td><td>
-%% ` RGB Components '</td><td>` Alpha Component '</td></tr></tbody><tbody><tr><td>`?GL_FUNC_ADD'
-%% </td><td> Rr=R s  s R+R d  d R Gr=G s  s G+G d  d G Br=B s  s B+B d  d B</td><td> Ar=A s 
-%% s A+A d  d A</td></tr><tr><td>`?GL_FUNC_SUBTRACT'</td><td> Rr=R s  s R-R d  d R Gr=G
-%% s  s G-G d  d G Br=B s  s B-B d  d B</td><td> Ar=A s  s A-A d  d A</td></tr><tr><td>`?GL_FUNC_REVERSE_SUBTRACT'
-%% </td><td> Rr=R d  d R-R s  s R Gr=G d  d G-G s  s G Br=B d  d B-B s  s B</td><td> Ar=A d 
-%% d A-A s  s A</td></tr><tr><td>`?GL_MIN'</td><td> Rr=min(R s R d) Gr=min(G s G d) Br=min(B s B d)</td><td> Ar=min
-%% (A s A d)</td></tr><tr><td>`?GL_MAX'</td><td> Rr=max(R s R d) Gr=max(G s G d) Br=max(B s B d)</td><td> Ar=max(A s A d)</td></tr></tbody>
-%% </table>
-%%
-%%  The results of these equations are clamped to the range  [0 1]. 
-%%
-%%  The `?GL_MIN' and `?GL_MAX' equations are useful for applications that analyze
-%% image data (image thresholding against a constant color, for example). The `?GL_FUNC_ADD'
-%%  equation is useful for antialiasing and transparency, among other things. 
-%%
-%%  Initially, both the RGB blend equation and the alpha blend equation are set to `?GL_FUNC_ADD'
-%% . 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBlendEquation.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBlendEquation.xhtml">external</a> documentation.
 -spec blendEquation(Mode) -> 'ok' when Mode :: enum().
 blendEquation(Mode) ->
   cast(5316, <<Mode:?GLenum>>).
@@ -7931,24 +3139,7 @@ blendEquation(Mode) ->
 %% , with the additional constraint that all values in the arrays  `Count'  must lie between
 %%  `Start'  and  `End' , inclusive. 
 %%
-%%  Implementations denote recommended maximum amounts of vertex and index data, which may
-%% be queried by calling  {@link gl:getBooleanv/1}  with argument `?GL_MAX_ELEMENTS_VERTICES' and `?GL_MAX_ELEMENTS_INDICES'
-%% . If   end-start+1 is greater than the value of `?GL_MAX_ELEMENTS_VERTICES', or if  `Count' 
-%%  is greater than the value of `?GL_MAX_ELEMENTS_INDICES', then the call may operate
-%% at reduced performance. There is no requirement that all vertices in the range [start end] be referenced.
-%% However, the implementation may partially process unused vertices, reducing performance
-%% from what could be achieved with an optimal index set. 
-%%
-%%  When ``gl:drawRangeElements'' is called, it uses  `Count'  sequential elements from
-%% an enabled array, starting at  `Start'  to construct a sequence of geometric primitives.
-%%  `Mode'  specifies what kind of primitives are constructed, and how the array elements
-%% construct these primitives. If more than one array is enabled, each is used.  
-%%
-%%  Vertex attributes that are modified by ``gl:drawRangeElements'' have an unspecified
-%% value after ``gl:drawRangeElements'' returns. Attributes that aren't modified maintain
-%% their previous values. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawRangeElements.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawRangeElements.xhtml">external</a> documentation.
 -spec drawRangeElements(Mode, Start, End, Count, Type, Indices) -> 'ok' when Mode :: enum(),Start :: integer(),End :: integer(),Count :: integer(),Type :: enum(),Indices :: offset()|mem().
 drawRangeElements(Mode,Start,End,Count,Type,Indices) when  is_integer(Indices) ->
   cast(5317, <<Mode:?GLenum,Start:?GLuint,End:?GLuint,Count:?GLsizei,Type:?GLenum,Indices:?GLuint>>);
@@ -7962,101 +3153,7 @@ drawRangeElements(Mode,Start,End,Count,Type,Indices) ->
 %% which texturing is enabled. To enable and disable three-dimensional texturing, call  {@link gl:enable/1} 
 %%  and  {@link gl:enable/1}  with argument `?GL_TEXTURE_3D'. 
 %%
-%%  To define texture images, call ``gl:texImage3D''. The arguments describe the parameters
-%% of the texture image, such as height, width, depth, width of the border, level-of-detail
-%% number (see  {@link gl:texParameterf/3} ), and number of color components provided. The last
-%% three arguments describe how the image is represented in memory. 
-%%
-%%  If  `Target'  is `?GL_PROXY_TEXTURE_3D', no data is read from  `Data' , but
-%% all of the texture image state is recalculated, checked for consistency, and checked against
-%% the implementation's capabilities. If the implementation cannot handle a texture of the
-%% requested texture size, it sets all of the image state to 0, but does not generate an
-%% error (see  {@link gl:getError/0} ). To query for an entire mipmap array, use an image array
-%% level greater than or equal to 1. 
-%%
-%%  If  `Target'  is `?GL_TEXTURE_3D', data is read from  `Data'  as a sequence
-%% of signed or unsigned bytes, shorts, or longs, or single-precision floating-point values,
-%% depending on  `Type' . These values are grouped into sets of one, two, three, or four
-%% values, depending on  `Format' , to form elements. Each data byte is treated as eight
-%% 1-bit elements, with bit ordering determined by `?GL_UNPACK_LSB_FIRST' (see  {@link gl:pixelStoref/2} 
-%% ). 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a texture image is specified,  `Data'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  The first element corresponds to the lower left corner of the texture image. Subsequent
-%% elements progress left-to-right through the remaining texels in the lowest row of the
-%% texture image, and then in successively higher rows of the texture image. The final element
-%% corresponds to the upper right corner of the texture image. 
-%%
-%%  `Format'  determines the composition of each element in  `Data' . It can assume
-%% one of these symbolic values: 
-%%
-%% `?GL_RED':  Each element is a single red component. The GL converts it to floating
-%% point and assembles it into an RGBA element by attaching 0 for green and blue, and 1 for
-%% alpha. Each component is then multiplied by the signed scale factor `?GL_c_SCALE',
-%% added to the signed bias `?GL_c_BIAS', and clamped to the range [0,1]. 
-%%
-%% `?GL_RG':  Each element is a red and green pair. The GL converts each to floating
-%% point and assembles it into an RGBA element by attaching 0 for blue, and 1 for alpha.
-%% Each component is then multiplied by the signed scale factor `?GL_c_SCALE', added
-%% to the signed bias `?GL_c_BIAS', and clamped to the range [0,1]. 
-%%
-%% `?GL_RGB'
-%%
-%% `?GL_BGR':  Each element is an RGB triple. The GL converts it to floating point and
-%% assembles it into an RGBA element by attaching 1 for alpha. Each component is then multiplied
-%% by the signed scale factor `?GL_c_SCALE', added to the signed bias `?GL_c_BIAS',
-%% and clamped to the range [0,1]. 
-%%
-%% `?GL_RGBA'
-%%
-%% `?GL_BGRA':  Each element contains all four components. Each component is multiplied
-%% by the signed scale factor `?GL_c_SCALE', added to the signed bias `?GL_c_BIAS',
-%% and clamped to the range [0,1]. 
-%%
-%%  If an application wants to store the texture at a certain resolution or in a certain
-%% format, it can request the resolution and format with  `InternalFormat' . The GL will
-%% choose an internal representation that closely approximates that requested by  `InternalFormat' 
-%% , but it may not match exactly. (The representations specified by `?GL_RED', `?GL_RG'
-%% , `?GL_RGB', and `?GL_RGBA' must match exactly.) 
-%%
-%%  `InternalFormat'  may be one of the base internal formats shown in Table 1, below 
-%%
-%%  `InternalFormat'  may also be one of the sized internal formats shown in Table 2,
-%% below 
-%%
-%%  Finally,  `InternalFormat'  may also be one of the generic or compressed compressed
-%% texture formats shown in Table 3 below 
-%%
-%%   If the  `InternalFormat'  parameter is one of the generic compressed formats,  `?GL_COMPRESSED_RED'
-%% , `?GL_COMPRESSED_RG',  `?GL_COMPRESSED_RGB', or  `?GL_COMPRESSED_RGBA',
-%% the GL will replace the internal format with the symbolic constant for a specific internal
-%% format and compress the texture before storage. If no corresponding internal format is
-%% available, or the GL can not compress that image for any reason, the internal format is
-%% instead replaced with a corresponding base internal format. 
-%%
-%%  If the  `InternalFormat'  parameter is     `?GL_SRGB',    `?GL_SRGB8',    `?GL_SRGB_ALPHA'
-%% , or    `?GL_SRGB8_ALPHA8', the texture is treated as if the red, green, blue, or
-%% luminance components are encoded in the sRGB color space. Any alpha component is left
-%% unchanged. The conversion from the sRGB encoded component      c s    to a linear component
-%%      c l is:   
-%%
-%%  c l={ c s/12.92if c s&amp;le; 0.04045( c s+0.055/1.055) 2.4if c s&gt; 0.04045
-%%
-%%     Assume        c s    is the sRGB component in the range [0,1]. 
-%%
-%%  Use the `?GL_PROXY_TEXTURE_3D' target to try out a resolution and format. The implementation
-%% will update and recompute its best match for the requested storage resolution and format.
-%% To then query this state, call  {@link gl:getTexLevelParameterfv/3} . If the texture cannot
-%% be accommodated, texture state is set to 0. 
-%%
-%%  A one-component texture image uses only the red component of the RGBA color extracted
-%% from  `Data' . A two-component image uses the R and A values. A three-component image
-%% uses the R, G, and B values. A four-component image uses all of the RGBA components. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexImage3D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexImage3D.xhtml">external</a> documentation.
 -spec texImage3D(Target, Level, InternalFormat, Width, Height, Depth, Border, Format, Type, Pixels) -> 'ok' when Target :: enum(),Level :: integer(),InternalFormat :: integer(),Width :: integer(),Height :: integer(),Depth :: integer(),Border :: integer(),Format :: enum(),Type :: enum(),Pixels :: offset()|mem().
 texImage3D(Target,Level,InternalFormat,Width,Height,Depth,Border,Format,Type,Pixels) when  is_integer(Pixels) ->
   cast(5319, <<Target:?GLenum,Level:?GLint,InternalFormat:?GLint,Width:?GLsizei,Height:?GLsizei,Depth:?GLsizei,Border:?GLint,Format:?GLenum,Type:?GLenum,Pixels:?GLuint>>);
@@ -8066,7 +3163,7 @@ texImage3D(Target,Level,InternalFormat,Width,Height,Depth,Border,Format,Type,Pix
 
 %% @doc glTexSubImage
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexSubImage.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec texSubImage3D(Target, Level, Xoffset, Yoffset, Zoffset, Width, Height, Depth, Format, Type, Pixels) -> 'ok' when Target :: enum(),Level :: integer(),Xoffset :: integer(),Yoffset :: integer(),Zoffset :: integer(),Width :: integer(),Height :: integer(),Depth :: integer(),Format :: enum(),Type :: enum(),Pixels :: offset()|mem().
 texSubImage3D(Target,Level,Xoffset,Yoffset,Zoffset,Width,Height,Depth,Format,Type,Pixels) when  is_integer(Pixels) ->
   cast(5321, <<Target:?GLenum,Level:?GLint,Xoffset:?GLint,Yoffset:?GLint,Zoffset:?GLint,Width:?GLsizei,Height:?GLsizei,Depth:?GLsizei,Format:?GLenum,Type:?GLenum,Pixels:?GLuint>>);
@@ -8080,30 +3177,7 @@ texSubImage3D(Target,Level,Xoffset,Yoffset,Zoffset,Width,Height,Depth,Format,Typ
 %% image with pixels from the current `?GL_READ_BUFFER' (rather than from main memory,
 %% as is the case for  {@link gl:texSubImage1D/7} ). 
 %%
-%%  The screen-aligned pixel rectangle with lower left corner at ( `X' ,  `Y' ) and
-%% with width  `Width'  and height  `Height'  replaces the portion of the texture array
-%% with x indices  `Xoffset'  through   xoffset+width-1, inclusive, and y indices  `Yoffset' 
-%%  through   yoffset+height-1, inclusive, at z index  `Zoffset'  and at the mipmap level
-%% specified by  `Level' . 
-%%
-%%  The pixels in the rectangle are processed exactly as if  {@link gl:readPixels/7}  had been
-%% called, but the process stops just before final conversion. At this point, all pixel component
-%% values are clamped to the range  [0 1] and then converted to the texture's internal format
-%% for storage in the texel array. 
-%%
-%%  The destination rectangle in the texture array may not include any texels outside the
-%% texture array as it was originally specified. It is not an error to specify a subtexture
-%% with zero width or height, but such a specification has no effect. 
-%%
-%%  If any of the pixels within the specified rectangle of the current `?GL_READ_BUFFER'
-%% are outside the read window associated with the current rendering context, then the values
-%% obtained for those pixels are undefined. 
-%%
-%%  No change is made to the `internalformat', `width', `height', `depth',
-%% or `border' parameters of the specified texture array or to texel values outside
-%% the specified subregion. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCopyTexSubImage3D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCopyTexSubImage3D.xhtml">external</a> documentation.
 -spec copyTexSubImage3D(Target, Level, Xoffset, Yoffset, Zoffset, X, Y, Width, Height) -> 'ok' when Target :: enum(),Level :: integer(),Xoffset :: integer(),Yoffset :: integer(),Zoffset :: integer(),X :: integer(),Y :: integer(),Width :: integer(),Height :: integer().
 copyTexSubImage3D(Target,Level,Xoffset,Yoffset,Zoffset,X,Y,Width,Height) ->
   cast(5323, <<Target:?GLenum,Level:?GLint,Xoffset:?GLint,Yoffset:?GLint,Zoffset:?GLint,X:?GLint,Y:?GLint,Width:?GLsizei,Height:?GLsizei>>).
@@ -8115,95 +3189,7 @@ copyTexSubImage3D(Target,Level,Xoffset,Yoffset,Zoffset,X,Y,Width,Height) ->
 %% lookup table. Use the targets `?GL_PROXY_*' for the first case and the other targets
 %% for the second case. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a color table is specified,  `Data'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  If  `Target'  is `?GL_COLOR_TABLE', `?GL_POST_CONVOLUTION_COLOR_TABLE', or `?GL_POST_COLOR_MATRIX_COLOR_TABLE'
-%% , ``gl:colorTable'' builds a color lookup table from an array of pixels. The pixel array
-%% specified by  `Width' ,  `Format' ,  `Type' , and  `Data'  is extracted from
-%% memory and processed just as if  {@link gl:drawPixels/5}  were called, but processing stops
-%% after the final expansion to RGBA is completed. 
-%%
-%%  The four scale parameters and the four bias parameters that are defined for the table
-%% are then used to scale and bias the R, G, B, and A components of each pixel. (Use ``gl:colorTableParameter''
-%%  to set these scale and bias parameters.) 
-%%
-%%  Next, the R, G, B, and A values are clamped to the range  [0 1]. Each pixel is then converted
-%% to the internal format specified by  `Internalformat' . This conversion simply maps
-%% the component values of the pixel (R, G, B, and A) to the values included in the internal
-%% format (red, green, blue, alpha, luminance, and intensity). The mapping is as follows: 
-%%
-%% <table><tbody><tr><td>` Internal Format '</td><td>` Red '</td><td>` Green '</td>
-%% <td>` Blue '</td><td>` Alpha '</td><td>` Luminance '</td><td>` Intensity '
-%% </td></tr></tbody><tbody><tr><td>`?GL_ALPHA'</td><td></td><td></td><td></td><td> A </td>
-%% <td></td><td></td></tr><tr><td>`?GL_LUMINANCE'</td><td></td><td></td><td></td><td></td>
-%% <td> R </td><td></td></tr><tr><td>`?GL_LUMINANCE_ALPHA'</td><td></td><td></td><td></td>
-%% <td> A </td><td> R </td><td></td></tr><tr><td>`?GL_INTENSITY'</td><td></td><td></td><td>
-%% </td><td></td><td></td><td> R </td></tr><tr><td>`?GL_RGB'</td><td> R </td><td> G </td>
-%% <td> B </td><td></td><td></td><td></td></tr><tr><td>`?GL_RGBA'</td><td> R </td><td>
-%% G </td><td> B </td><td> A </td><td></td><td></td></tr></tbody></table>
-%%
-%%  Finally, the red, green, blue, alpha, luminance, and/or intensity components of the resulting
-%% pixels are stored in the color table. They form a one-dimensional table with indices in
-%% the range [0 width-1]. 
-%%
-%%  If  `Target'  is `?GL_PROXY_*', ``gl:colorTable'' recomputes and stores the
-%% values of the proxy color table's state variables `?GL_COLOR_TABLE_FORMAT', `?GL_COLOR_TABLE_WIDTH'
-%% , `?GL_COLOR_TABLE_RED_SIZE', `?GL_COLOR_TABLE_GREEN_SIZE', `?GL_COLOR_TABLE_BLUE_SIZE'
-%% , `?GL_COLOR_TABLE_ALPHA_SIZE', `?GL_COLOR_TABLE_LUMINANCE_SIZE', and `?GL_COLOR_TABLE_INTENSITY_SIZE'
-%% . There is no effect on the image or state of any actual color table. If the specified
-%% color table is too large to be supported, then all the proxy state variables listed above
-%% are set to zero. Otherwise, the color table could be supported by ``gl:colorTable''
-%% using the corresponding non-proxy target, and the proxy state variables are set as if
-%% that target were being defined. 
-%%
-%%  The proxy state variables can be retrieved by calling  {@link gl:getColorTableParameterfv/2} 
-%% with a target of `?GL_PROXY_*'. This allows the application to decide if a particular
-%% ``gl:colorTable'' command would succeed, and to determine what the resulting color table
-%% attributes would be. 
-%%
-%%  If a color table is enabled, and its width is non-zero, then its contents are used to
-%% replace a subset of the components of each RGBA pixel group, based on the internal format
-%% of the table. 
-%%
-%%  Each pixel group has color components (R, G, B, A) that are in the range  [0.0 1.0]. The color
-%% components are rescaled to the size of the color lookup table to form an index. Then a
-%% subset of the components based on the internal format of the table are replaced by the
-%% table entry selected by that index. If the color components and contents of the table
-%% are represented as follows: 
-%%
-%% <table><tbody><tr><td>` Representation '</td><td>` Meaning '</td></tr></tbody><tbody>
-%% <tr><td>r</td><td> Table index computed from R</td></tr><tr><td>g</td><td> Table index
-%% computed from G</td></tr><tr><td>b</td><td> Table index computed from B</td></tr><tr><td>a
-%% </td><td> Table index computed from A</td></tr><tr><td>L[i]</td><td> Luminance value at
-%% table index i</td></tr><tr><td>I[i]</td><td> Intensity value at table index i</td></tr><tr>
-%% <td>R[i]</td><td> Red value at table index i</td></tr><tr><td>G[i]</td><td> Green value
-%% at table index i</td></tr><tr><td>B[i]</td><td> Blue value at table index i</td></tr><tr><td>
-%% A[i]</td><td> Alpha value at table index i</td></tr></tbody></table>
-%%
-%%  then the result of color table lookup is as follows: 
-%%
-%% <table><tbody><tr><td></td><td>` Resulting Texture Components '</td></tr><tr><td>` Table Internal Format '
-%% </td><td>` R '</td><td>` G '</td><td>` B '</td><td>` A '</td></tr></tbody>
-%% <tbody><tr><td>`?GL_ALPHA'</td><td>R</td><td>G</td><td>B</td><td>A[a]</td></tr><tr><td>
-%% `?GL_LUMINANCE'</td><td>L[r]</td><td>L[g]</td><td>L[b]</td><td>At</td></tr><tr><td>`?GL_LUMINANCE_ALPHA'
-%% </td><td>L[r]</td><td>L[g]</td><td>L[b]</td><td>A[a]</td></tr><tr><td>`?GL_INTENSITY'</td>
-%% <td>I[r]</td><td>I[g]</td><td>I[b]</td><td>I[a]</td></tr><tr><td>`?GL_RGB'</td><td>R[r]
-%% </td><td>G[g]</td><td>B[b]</td><td>A</td></tr><tr><td>`?GL_RGBA'</td><td>R[r]</td><td>
-%% G[g]</td><td>B[b]</td><td>A[a]</td></tr></tbody></table>
-%%
-%%  When `?GL_COLOR_TABLE' is enabled, the colors resulting from the pixel map operation
-%% (if it is enabled) are mapped by the color lookup table before being passed to the convolution
-%% operation. The colors resulting from the convolution operation are modified by the post
-%% convolution color lookup table when `?GL_POST_CONVOLUTION_COLOR_TABLE' is enabled.
-%% These modified colors are then sent to the color matrix operation. Finally, if `?GL_POST_COLOR_MATRIX_COLOR_TABLE'
-%%  is enabled, the colors resulting from the color matrix operation are mapped by the post
-%% color matrix color lookup table before being used by the histogram operation. 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glColorTable.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glColorTable.xml">external</a> documentation.
 -spec colorTable(Target, Internalformat, Width, Format, Type, Table) -> 'ok' when Target :: enum(),Internalformat :: enum(),Width :: integer(),Format :: enum(),Type :: enum(),Table :: offset()|mem().
 colorTable(Target,Internalformat,Width,Format,Type,Table) when  is_integer(Table) ->
   cast(5324, <<Target:?GLenum,Internalformat:?GLenum,Width:?GLsizei,Format:?GLenum,Type:?GLenum,Table:?GLuint>>);
@@ -8218,17 +3204,7 @@ colorTable(Target,Internalformat,Width,Format,Type,Table) ->
 %% color table the scale and bias terms apply to; it must be set to `?GL_COLOR_TABLE', `?GL_POST_CONVOLUTION_COLOR_TABLE'
 %% , or `?GL_POST_COLOR_MATRIX_COLOR_TABLE'. 
 %%
-%%  `Pname'  must be `?GL_COLOR_TABLE_SCALE' to set the scale factors. In this case,
-%%  `Params'  points to an array of four values, which are the scale factors for red,
-%% green, blue, and alpha, in that order. 
-%%
-%%  `Pname'  must be `?GL_COLOR_TABLE_BIAS' to set the bias terms. In this case,  `Params' 
-%%  points to an array of four values, which are the bias terms for red, green, blue, and
-%% alpha, in that order. 
-%%
-%%  The color tables themselves are specified by calling  {@link gl:colorTable/6} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glColorTableParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glColorTableParameter.xml">external</a> documentation.
 -spec colorTableParameterfv(Target, Pname, Params) -> 'ok' when Target :: enum(),Pname :: enum(),Params :: {float(),float(),float(),float()}.
 colorTableParameterfv(Target,Pname,{P1,P2,P3,P4}) ->
   cast(5326, <<Target:?GLenum,Pname:?GLenum,P1:?GLfloat,P2:?GLfloat,P3:?GLfloat,P4:?GLfloat>>).
@@ -8244,41 +3220,7 @@ colorTableParameteriv(Target,Pname,{P1,P2,P3,P4}) ->
 %% ``gl:copyColorTable'' loads a color table with pixels from the current `?GL_READ_BUFFER'
 %%  (rather than from main memory, as is the case for  {@link gl:colorTable/6} ). 
 %%
-%%  The screen-aligned pixel rectangle with lower-left corner at ( `X' ,  `Y' ) having
-%% width  `Width'  and height 1 is loaded into the color table. If any pixels within this
-%% region are outside the window that is associated with the GL context, the values obtained
-%% for those pixels are undefined. 
-%%
-%%  The pixels in the rectangle are processed just as if  {@link gl:readPixels/7}  were called,
-%% with  `Internalformat'  set to RGBA, but processing stops after the final conversion
-%% to RGBA. 
-%%
-%%  The four scale parameters and the four bias parameters that are defined for the table
-%% are then used to scale and bias the R, G, B, and A components of each pixel. The scale
-%% and bias parameters are set by calling  {@link gl:colorTableParameterfv/3} . 
-%%
-%%  Next, the R, G, B, and A values are clamped to the range  [0 1]. Each pixel is then converted
-%% to the internal format specified by  `Internalformat' . This conversion simply maps
-%% the component values of the pixel (R, G, B, and A) to the values included in the internal
-%% format (red, green, blue, alpha, luminance, and intensity). The mapping is as follows: 
-%%
-%% <table><tbody><tr><td>` Internal Format '</td><td>` Red '</td><td>` Green '</td>
-%% <td>` Blue '</td><td>` Alpha '</td><td>` Luminance '</td><td>` Intensity '
-%% </td></tr></tbody><tbody><tr><td>`?GL_ALPHA'</td><td></td><td></td><td></td><td> A </td>
-%% <td></td><td></td></tr><tr><td>`?GL_LUMINANCE'</td><td></td><td></td><td></td><td></td>
-%% <td> R </td><td></td></tr><tr><td>`?GL_LUMINANCE_ALPHA'</td><td></td><td></td><td></td>
-%% <td> A </td><td> R </td><td></td></tr><tr><td>`?GL_INTENSITY'</td><td></td><td></td><td>
-%% </td><td></td><td></td><td> R </td></tr><tr><td>`?GL_RGB'</td><td> R </td><td> G </td>
-%% <td> B </td><td></td><td></td><td></td></tr><tr><td>`?GL_RGBA'</td><td> R </td><td>
-%% G </td><td> B </td><td> A </td><td></td><td></td></tr></tbody></table>
-%%
-%%  Finally, the red, green, blue, alpha, luminance, and/or intensity components of the resulting
-%% pixels are stored in the color table. They form a one-dimensional table with indices in
-%% the range [0 width-1]. 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCopyColorTable.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glCopyColorTable.xml">external</a> documentation.
 -spec copyColorTable(Target, Internalformat, X, Y, Width) -> 'ok' when Target :: enum(),Internalformat :: enum(),X :: integer(),Y :: integer(),Width :: integer().
 copyColorTable(Target,Internalformat,X,Y,Width) ->
   cast(5328, <<Target:?GLenum,Internalformat:?GLenum,X:?GLint,Y:?GLint,Width:?GLsizei>>).
@@ -8289,21 +3231,7 @@ copyColorTable(Target,Internalformat,X,Y,Width) ->
 %% by  `Target' . No pixel transfer operations are performed, but pixel storage modes
 %% that are applicable to  {@link gl:readPixels/7}  are performed. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_PACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a histogram table is requested,  `Table'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  Color components that are requested in the specified  `Format' , but which are not
-%% included in the internal format of the color lookup table, are returned as zero. The assignments
-%% of internal color components to the components requested by  `Format'  are <table><tbody>
-%% <tr><td>` Internal Component '</td><td>` Resulting Component '</td></tr></tbody>
-%% <tbody><tr><td> Red </td><td> Red </td></tr><tr><td> Green </td><td> Green </td></tr><tr><td>
-%%  Blue </td><td> Blue </td></tr><tr><td> Alpha </td><td> Alpha </td></tr><tr><td> Luminance
-%% </td><td> Red </td></tr><tr><td> Intensity </td><td> Red </td></tr></tbody></table>
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetColorTable.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetColorTable.xml">external</a> documentation.
 -spec getColorTable(Target, Format, Type, Table) -> 'ok' when Target :: enum(),Format :: enum(),Type :: enum(),Table :: mem().
 getColorTable(Target,Format,Type,Table) ->
   send_bin(Table),
@@ -8313,36 +3241,7 @@ getColorTable(Target,Format,Type,Table) ->
 %%
 %%  Returns parameters specific to color table  `Target' . 
 %%
-%%  When  `Pname'  is set to `?GL_COLOR_TABLE_SCALE' or `?GL_COLOR_TABLE_BIAS',
-%% ``gl:getColorTableParameter'' returns the color table scale or bias parameters for the
-%% table specified by  `Target' . For these queries,  `Target'  must be set to `?GL_COLOR_TABLE'
-%% , `?GL_POST_CONVOLUTION_COLOR_TABLE', or `?GL_POST_COLOR_MATRIX_COLOR_TABLE'
-%% and  `Params'  points to an array of four elements, which receive the scale or bias
-%% factors for red, green, blue, and alpha, in that order. 
-%%
-%% ``gl:getColorTableParameter'' can also be used to retrieve the format and size parameters
-%% for a color table. For these queries, set  `Target'  to either the color table target
-%% or the proxy color table target. The format and size parameters are set by  {@link gl:colorTable/6} 
-%% . 
-%%
-%%  The following table lists the format and size parameters that may be queried. For each
-%% symbolic constant listed below for  `Pname' ,  `Params'  must point to an array
-%% of the given length and receive the values indicated. 
-%%
-%% <table><tbody><tr><td>` Parameter '</td><td>` N '</td><td>` Meaning '</td></tr>
-%% </tbody><tbody><tr><td>`?GL_COLOR_TABLE_FORMAT'</td><td> 1 </td><td> Internal format
-%% (e.g., `?GL_RGBA') </td></tr><tr><td>`?GL_COLOR_TABLE_WIDTH'</td><td> 1 </td><td>
-%%  Number of elements in table </td></tr><tr><td>`?GL_COLOR_TABLE_RED_SIZE'</td><td>
-%% 1 </td><td> Size of red component, in bits </td></tr><tr><td>`?GL_COLOR_TABLE_GREEN_SIZE'
-%% </td><td> 1 </td><td> Size of green component </td></tr><tr><td>`?GL_COLOR_TABLE_BLUE_SIZE'
-%% </td><td> 1 </td><td> Size of blue component </td></tr><tr><td>`?GL_COLOR_TABLE_ALPHA_SIZE'
-%% </td><td> 1 </td><td> Size of alpha component </td></tr><tr><td>`?GL_COLOR_TABLE_LUMINANCE_SIZE'
-%% </td><td> 1 </td><td> Size of luminance component </td></tr><tr><td>`?GL_COLOR_TABLE_INTENSITY_SIZE'
-%% </td><td> 1 </td><td> Size of intensity component </td></tr></tbody></table>
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetColorTableParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetColorTableParameter.xml">external</a> documentation.
 -spec getColorTableParameterfv(Target, Pname) -> {float(),float(),float(),float()} when Target :: enum(),Pname :: enum().
 getColorTableParameterfv(Target,Pname) ->
   call(5330, <<Target:?GLenum,Pname:?GLenum>>).
@@ -8362,11 +3261,7 @@ getColorTableParameteriv(Target,Pname) ->
 %% originally specified. It is not an error to specify a subtexture with width of 0, but
 %% such a specification has no effect. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a portion of a color table is respecified,  `Data' 
-%% is treated as a byte offset into the buffer object's data store. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glColorSubTable.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glColorSubTable.xml">external</a> documentation.
 -spec colorSubTable(Target, Start, Count, Format, Type, Data) -> 'ok' when Target :: enum(),Start :: integer(),Count :: integer(),Format :: enum(),Type :: enum(),Data :: offset()|mem().
 colorSubTable(Target,Start,Count,Format,Type,Data) when  is_integer(Data) ->
   cast(5332, <<Target:?GLenum,Start:?GLsizei,Count:?GLsizei,Format:?GLenum,Type:?GLenum,Data:?GLuint>>);
@@ -8383,7 +3278,7 @@ colorSubTable(Target,Start,Count,Format,Type,Data) ->
 %% specified. It is not an error to specify a subtexture with width of 0, but such a specification
 %% has no effect. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCopyColorSubTable.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glCopyColorSubTable.xml">external</a> documentation.
 -spec copyColorSubTable(Target, Start, X, Y, Width) -> 'ok' when Target :: enum(),Start :: integer(),X :: integer(),Y :: integer(),Width :: integer().
 copyColorSubTable(Target,Start,X,Y,Width) ->
   cast(5334, <<Target:?GLenum,Start:?GLsizei,X:?GLint,Y:?GLint,Width:?GLsizei>>).
@@ -8393,50 +3288,7 @@ copyColorSubTable(Target,Start,X,Y,Width) ->
 %% ``gl:convolutionFilter1D'' builds a one-dimensional convolution filter kernel from an
 %% array of pixels. 
 %%
-%%  The pixel array specified by  `Width' ,  `Format' ,  `Type' , and  `Data' 
-%% is extracted from memory and processed just as if  {@link gl:drawPixels/5}  were called,
-%% but processing stops after the final expansion to RGBA is completed. 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a convolution filter is specified,  `Data'  is
-%% treated as a byte offset into the buffer object's data store. 
-%%
-%%  The R, G, B, and A components of each pixel are next scaled by the four 1D `?GL_CONVOLUTION_FILTER_SCALE'
-%%  parameters and biased by the four 1D `?GL_CONVOLUTION_FILTER_BIAS' parameters. (The
-%% scale and bias parameters are set by  {@link gl:convolutionParameterf/3}  using the `?GL_CONVOLUTION_1D'
-%%  target and the names `?GL_CONVOLUTION_FILTER_SCALE' and `?GL_CONVOLUTION_FILTER_BIAS'
-%% . The parameters themselves are vectors of four values that are applied to red, green,
-%% blue, and alpha, in that order.) The R, G, B, and A values are not clamped to [0,1] at
-%% any time during this process. 
-%%
-%%  Each pixel is then converted to the internal format specified by  `Internalformat' .
-%% This conversion simply maps the component values of the pixel (R, G, B, and A) to the
-%% values included in the internal format (red, green, blue, alpha, luminance, and intensity).
-%% The mapping is as follows: 
-%%
-%% <table><tbody><tr><td>` Internal Format '</td><td>` Red '</td><td>` Green '</td>
-%% <td>` Blue '</td><td>` Alpha '</td><td>` Luminance '</td><td>` Intensity '
-%% </td></tr></tbody><tbody><tr><td>`?GL_ALPHA'</td><td></td><td></td><td></td><td> A </td>
-%% <td></td><td></td></tr><tr><td>`?GL_LUMINANCE'</td><td></td><td></td><td></td><td></td>
-%% <td> R </td><td></td></tr><tr><td>`?GL_LUMINANCE_ALPHA'</td><td></td><td></td><td></td>
-%% <td> A </td><td> R </td><td></td></tr><tr><td>`?GL_INTENSITY'</td><td></td><td></td><td>
-%% </td><td></td><td></td><td> R </td></tr><tr><td>`?GL_RGB'</td><td> R </td><td> G </td>
-%% <td> B </td><td></td><td></td><td></td></tr><tr><td>`?GL_RGBA'</td><td> R </td><td>
-%% G </td><td> B </td><td> A </td><td></td><td></td></tr></tbody></table>
-%%
-%%  The red, green, blue, alpha, luminance, and/or intensity components of the resulting
-%% pixels are stored in floating-point rather than integer format. They form a one-dimensional
-%% filter kernel image indexed with coordinate `i' such that `i' starts at 0 and
-%% increases from left to right. Kernel location `i' is derived from the `i'th
-%% pixel, counting from 0. 
-%%
-%%  Note that after a convolution is performed, the resulting color components are also scaled
-%% by their corresponding `?GL_POST_CONVOLUTION_c_SCALE' parameters and biased by their
-%% corresponding `?GL_POST_CONVOLUTION_c_BIAS' parameters (where `c' takes on the
-%% values `RED', `GREEN', `BLUE', and `ALPHA'). These parameters are
-%% set by  {@link gl:pixelTransferf/2} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glConvolutionFilter1D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glConvolutionFilter1D.xml">external</a> documentation.
 -spec convolutionFilter1D(Target, Internalformat, Width, Format, Type, Image) -> 'ok' when Target :: enum(),Internalformat :: enum(),Width :: integer(),Format :: enum(),Type :: enum(),Image :: offset()|mem().
 convolutionFilter1D(Target,Internalformat,Width,Format,Type,Image) when  is_integer(Image) ->
   cast(5335, <<Target:?GLenum,Internalformat:?GLenum,Width:?GLsizei,Format:?GLenum,Type:?GLenum,Image:?GLuint>>);
@@ -8449,51 +3301,7 @@ convolutionFilter1D(Target,Internalformat,Width,Format,Type,Image) ->
 %% ``gl:convolutionFilter2D'' builds a two-dimensional convolution filter kernel from an
 %% array of pixels. 
 %%
-%%  The pixel array specified by  `Width' ,  `Height' ,  `Format' ,  `Type' ,
-%% and  `Data'  is extracted from memory and processed just as if  {@link gl:drawPixels/5} 
-%% were called, but processing stops after the final expansion to RGBA is completed. 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a convolution filter is specified,  `Data'  is
-%% treated as a byte offset into the buffer object's data store. 
-%%
-%%  The R, G, B, and A components of each pixel are next scaled by the four 2D `?GL_CONVOLUTION_FILTER_SCALE'
-%%  parameters and biased by the four 2D `?GL_CONVOLUTION_FILTER_BIAS' parameters. (The
-%% scale and bias parameters are set by  {@link gl:convolutionParameterf/3}  using the `?GL_CONVOLUTION_2D'
-%%  target and the names `?GL_CONVOLUTION_FILTER_SCALE' and `?GL_CONVOLUTION_FILTER_BIAS'
-%% . The parameters themselves are vectors of four values that are applied to red, green,
-%% blue, and alpha, in that order.) The R, G, B, and A values are not clamped to [0,1] at
-%% any time during this process. 
-%%
-%%  Each pixel is then converted to the internal format specified by  `Internalformat' .
-%% This conversion simply maps the component values of the pixel (R, G, B, and A) to the
-%% values included in the internal format (red, green, blue, alpha, luminance, and intensity).
-%% The mapping is as follows: 
-%%
-%% <table><tbody><tr><td>` Internal Format '</td><td>` Red '</td><td>` Green '</td>
-%% <td>` Blue '</td><td>` Alpha '</td><td>` Luminance '</td><td>` Intensity '
-%% </td></tr></tbody><tbody><tr><td>`?GL_ALPHA'</td><td></td><td></td><td></td><td> A </td>
-%% <td></td><td></td></tr><tr><td>`?GL_LUMINANCE'</td><td></td><td></td><td></td><td></td>
-%% <td> R </td><td></td></tr><tr><td>`?GL_LUMINANCE_ALPHA'</td><td></td><td></td><td></td>
-%% <td> A </td><td> R </td><td></td></tr><tr><td>`?GL_INTENSITY'</td><td></td><td></td><td>
-%% </td><td></td><td></td><td> R </td></tr><tr><td>`?GL_RGB'</td><td> R </td><td> G </td>
-%% <td> B </td><td></td><td></td><td></td></tr><tr><td>`?GL_RGBA'</td><td> R </td><td>
-%% G </td><td> B </td><td> A </td><td></td><td></td></tr></tbody></table>
-%%
-%%  The red, green, blue, alpha, luminance, and/or intensity components of the resulting
-%% pixels are stored in floating-point rather than integer format. They form a two-dimensional
-%% filter kernel image indexed with coordinates `i' and `j' such that `i'
-%% starts at zero and increases from left to right, and `j' starts at zero and increases
-%% from bottom to top. Kernel location `i,j' is derived from the `N'th pixel, where
-%% `N' is `i'+`j'* `Width' . 
-%%
-%%  Note that after a convolution is performed, the resulting color components are also scaled
-%% by their corresponding `?GL_POST_CONVOLUTION_c_SCALE' parameters and biased by their
-%% corresponding `?GL_POST_CONVOLUTION_c_BIAS' parameters (where `c' takes on the
-%% values `RED', `GREEN', `BLUE', and `ALPHA'). These parameters are
-%% set by  {@link gl:pixelTransferf/2} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glConvolutionFilter2D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glConvolutionFilter2D.xml">external</a> documentation.
 -spec convolutionFilter2D(Target, Internalformat, Width, Height, Format, Type, Image) -> 'ok' when Target :: enum(),Internalformat :: enum(),Width :: integer(),Height :: integer(),Format :: enum(),Type :: enum(),Image :: offset()|mem().
 convolutionFilter2D(Target,Internalformat,Width,Height,Format,Type,Image) when  is_integer(Image) ->
   cast(5337, <<Target:?GLenum,Internalformat:?GLenum,Width:?GLsizei,Height:?GLsizei,Format:?GLenum,Type:?GLenum,Image:?GLuint>>);
@@ -8505,36 +3313,7 @@ convolutionFilter2D(Target,Internalformat,Width,Height,Format,Type,Image) ->
 %%
 %% ``gl:convolutionParameter'' sets the value of a convolution parameter. 
 %%
-%%  `Target'  selects the convolution filter to be affected: `?GL_CONVOLUTION_1D', `?GL_CONVOLUTION_2D'
-%% , or `?GL_SEPARABLE_2D' for the 1D, 2D, or separable 2D filter, respectively. 
-%%
-%%  `Pname'  selects the parameter to be changed. `?GL_CONVOLUTION_FILTER_SCALE'
-%% and `?GL_CONVOLUTION_FILTER_BIAS' affect the definition of the convolution filter
-%% kernel; see  {@link gl:convolutionFilter1D/6} ,  {@link gl:convolutionFilter2D/7} , and  {@link gl:separableFilter2D/8} 
-%%  for details. In these cases,  `Params' v is an array of four values to be applied
-%% to red, green, blue, and alpha values, respectively. The initial value for `?GL_CONVOLUTION_FILTER_SCALE'
-%%  is (1, 1, 1, 1), and the initial value for `?GL_CONVOLUTION_FILTER_BIAS' is (0,
-%% 0, 0, 0). 
-%%
-%%  A  `Pname'  value of `?GL_CONVOLUTION_BORDER_MODE' controls the convolution border
-%% mode. The accepted modes are: 
-%%
-%% `?GL_REDUCE':  The image resulting from convolution is smaller than the source image.
-%% If the filter width is   Wf and height is   Hf, and the source image width is   Ws and
-%% height is   Hs, then the convolved image width will be   Ws-Wf+1 and height will be   Hs-Hf
-%% +1. (If this reduction would generate an image with zero or negative width and/or height,
-%% the output is simply null, with no error generated.) The coordinates of the image resulting
-%% from convolution are zero through   Ws-Wf in width and zero through   Hs-Hf in height. 
-%%
-%% `?GL_CONSTANT_BORDER':  The image resulting from convolution is the same size as
-%% the source image, and processed as if the source image were surrounded by pixels with
-%% their color specified by the `?GL_CONVOLUTION_BORDER_COLOR'. 
-%%
-%% `?GL_REPLICATE_BORDER':  The image resulting from convolution is the same size as
-%% the source image, and processed as if the outermost pixel on the border of the source
-%% image were replicated. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glConvolutionParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glConvolutionParameter.xml">external</a> documentation.
 -spec convolutionParameterf(Target, Pname, Params) -> 'ok' when Target :: enum(),Pname :: enum(),Params :: tuple().
 convolutionParameterf(Target,Pname,Params) ->
   cast(5339, <<Target:?GLenum,Pname:?GLenum,(size(Params)):?GLuint,
@@ -8561,49 +3340,7 @@ convolutionParameteriv(Target,Pname,{Params}) ->  convolutionParameteri(Target,P
 %% pixels from the current `?GL_READ_BUFFER' (rather than from main memory, as is the
 %% case for  {@link gl:convolutionFilter1D/6} ). 
 %%
-%%  The screen-aligned pixel rectangle with lower-left corner at ( `X' ,  `Y' ), width
-%%  `Width'  and height 1 is used to define the convolution filter. If any pixels within
-%% this region are outside the window that is associated with the GL context, the values
-%% obtained for those pixels are undefined. 
-%%
-%%  The pixels in the rectangle are processed exactly as if  {@link gl:readPixels/7}  had been
-%% called with `format' set to RGBA, but the process stops just before final conversion.
-%% The R, G, B, and A components of each pixel are next scaled by the four 1D `?GL_CONVOLUTION_FILTER_SCALE'
-%%  parameters and biased by the four 1D `?GL_CONVOLUTION_FILTER_BIAS' parameters. (The
-%% scale and bias parameters are set by  {@link gl:convolutionParameterf/3}  using the `?GL_CONVOLUTION_1D'
-%%  target and the names `?GL_CONVOLUTION_FILTER_SCALE' and `?GL_CONVOLUTION_FILTER_BIAS'
-%% . The parameters themselves are vectors of four values that are applied to red, green,
-%% blue, and alpha, in that order.) The R, G, B, and A values are not clamped to [0,1] at
-%% any time during this process. 
-%%
-%%  Each pixel is then converted to the internal format specified by  `Internalformat' .
-%% This conversion simply maps the component values of the pixel (R, G, B, and A) to the
-%% values included in the internal format (red, green, blue, alpha, luminance, and intensity).
-%% The mapping is as follows: 
-%%
-%% <table><tbody><tr><td>` Internal Format '</td><td>` Red '</td><td>` Green '</td>
-%% <td>` Blue '</td><td>` Alpha '</td><td>` Luminance '</td><td>` Intensity '
-%% </td></tr></tbody><tbody><tr><td>`?GL_ALPHA'</td><td></td><td></td><td></td><td> A </td>
-%% <td></td><td></td></tr><tr><td>`?GL_LUMINANCE'</td><td></td><td></td><td></td><td></td>
-%% <td> R </td><td></td></tr><tr><td>`?GL_LUMINANCE_ALPHA'</td><td></td><td></td><td></td>
-%% <td> A </td><td> R </td><td></td></tr><tr><td>`?GL_INTENSITY'</td><td></td><td></td><td>
-%% </td><td></td><td></td><td> R </td></tr><tr><td>`?GL_RGB'</td><td> R </td><td> G </td>
-%% <td> B </td><td></td><td></td><td></td></tr><tr><td>`?GL_RGBA'</td><td> R </td><td>
-%% G </td><td> B </td><td> A </td><td></td><td></td></tr></tbody></table>
-%%
-%%  The red, green, blue, alpha, luminance, and/or intensity components of the resulting
-%% pixels are stored in floating-point rather than integer format. 
-%%
-%%  Pixel ordering is such that lower x screen coordinates correspond to lower `i' filter
-%% image coordinates. 
-%%
-%%  Note that after a convolution is performed, the resulting color components are also scaled
-%% by their corresponding `?GL_POST_CONVOLUTION_c_SCALE' parameters and biased by their
-%% corresponding `?GL_POST_CONVOLUTION_c_BIAS' parameters (where `c' takes on the
-%% values `RED', `GREEN', `BLUE', and `ALPHA'). These parameters are
-%% set by  {@link gl:pixelTransferf/2} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCopyConvolutionFilter1D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glCopyConvolutionFilter1D.xml">external</a> documentation.
 -spec copyConvolutionFilter1D(Target, Internalformat, X, Y, Width) -> 'ok' when Target :: enum(),Internalformat :: enum(),X :: integer(),Y :: integer(),Width :: integer().
 copyConvolutionFilter1D(Target,Internalformat,X,Y,Width) ->
   cast(5341, <<Target:?GLenum,Internalformat:?GLenum,X:?GLint,Y:?GLint,Width:?GLsizei>>).
@@ -8614,50 +3351,7 @@ copyConvolutionFilter1D(Target,Internalformat,X,Y,Width) ->
 %% pixels from the current `?GL_READ_BUFFER' (rather than from main memory, as is the
 %% case for  {@link gl:convolutionFilter2D/7} ). 
 %%
-%%  The screen-aligned pixel rectangle with lower-left corner at ( `X' ,  `Y' ), width
-%%  `Width'  and height  `Height'  is used to define the convolution filter. If any
-%% pixels within this region are outside the window that is associated with the GL context,
-%% the values obtained for those pixels are undefined. 
-%%
-%%  The pixels in the rectangle are processed exactly as if  {@link gl:readPixels/7}  had been
-%% called with `format' set to RGBA, but the process stops just before final conversion.
-%% The R, G, B, and A components of each pixel are next scaled by the four 2D `?GL_CONVOLUTION_FILTER_SCALE'
-%%  parameters and biased by the four 2D `?GL_CONVOLUTION_FILTER_BIAS' parameters. (The
-%% scale and bias parameters are set by  {@link gl:convolutionParameterf/3}  using the `?GL_CONVOLUTION_2D'
-%%  target and the names `?GL_CONVOLUTION_FILTER_SCALE' and `?GL_CONVOLUTION_FILTER_BIAS'
-%% . The parameters themselves are vectors of four values that are applied to red, green,
-%% blue, and alpha, in that order.) The R, G, B, and A values are not clamped to [0,1] at
-%% any time during this process. 
-%%
-%%  Each pixel is then converted to the internal format specified by  `Internalformat' .
-%% This conversion simply maps the component values of the pixel (R, G, B, and A) to the
-%% values included in the internal format (red, green, blue, alpha, luminance, and intensity).
-%% The mapping is as follows: 
-%%
-%% <table><tbody><tr><td>` Internal Format '</td><td>` Red '</td><td>` Green '</td>
-%% <td>` Blue '</td><td>` Alpha '</td><td>` Luminance '</td><td>` Intensity '
-%% </td></tr></tbody><tbody><tr><td>`?GL_ALPHA'</td><td></td><td></td><td></td><td> A </td>
-%% <td></td><td></td></tr><tr><td>`?GL_LUMINANCE'</td><td></td><td></td><td></td><td></td>
-%% <td> R </td><td></td></tr><tr><td>`?GL_LUMINANCE_ALPHA'</td><td></td><td></td><td></td>
-%% <td> A </td><td> R </td><td></td></tr><tr><td>`?GL_INTENSITY'</td><td></td><td></td><td>
-%% </td><td></td><td></td><td> R </td></tr><tr><td>`?GL_RGB'</td><td> R </td><td> G </td>
-%% <td> B </td><td></td><td></td><td></td></tr><tr><td>`?GL_RGBA'</td><td> R </td><td>
-%% G </td><td> B </td><td> A </td><td></td><td></td></tr></tbody></table>
-%%
-%%  The red, green, blue, alpha, luminance, and/or intensity components of the resulting
-%% pixels are stored in floating-point rather than integer format. 
-%%
-%%  Pixel ordering is such that lower x screen coordinates correspond to lower `i' filter
-%% image coordinates, and lower y screen coordinates correspond to lower `j' filter
-%% image coordinates. 
-%%
-%%  Note that after a convolution is performed, the resulting color components are also scaled
-%% by their corresponding `?GL_POST_CONVOLUTION_c_SCALE' parameters and biased by their
-%% corresponding `?GL_POST_CONVOLUTION_c_BIAS' parameters (where `c' takes on the
-%% values `RED', `GREEN', `BLUE', and `ALPHA'). These parameters are
-%% set by  {@link gl:pixelTransferf/2} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCopyConvolutionFilter2D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glCopyConvolutionFilter2D.xml">external</a> documentation.
 -spec copyConvolutionFilter2D(Target, Internalformat, X, Y, Width, Height) -> 'ok' when Target :: enum(),Internalformat :: enum(),X :: integer(),Y :: integer(),Width :: integer(),Height :: integer().
 copyConvolutionFilter2D(Target,Internalformat,X,Y,Width,Height) ->
   cast(5342, <<Target:?GLenum,Internalformat:?GLenum,X:?GLint,Y:?GLint,Width:?GLsizei,Height:?GLsizei>>).
@@ -8669,21 +3363,7 @@ copyConvolutionFilter2D(Target,Internalformat,X,Y,Width,Height) ->
 %% specifications in  `Format'  and  `Type' . No pixel transfer operations are performed
 %% on this image, but the relevant pixel storage modes are applied. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_PACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a convolution filter is requested,  `Image'  is
-%% treated as a byte offset into the buffer object's data store. 
-%%
-%%  Color components that are present in  `Format'  but not included in the internal format
-%% of the filter are returned as zero. The assignments of internal color components to the
-%% components of  `Format'  are as follows. <table><tbody><tr><td>` Internal Component '
-%% </td><td>` Resulting Component '</td></tr></tbody><tbody><tr><td> Red </td><td> Red </td>
-%% </tr><tr><td> Green </td><td> Green </td></tr><tr><td> Blue </td><td> Blue </td></tr><tr><td>
-%%  Alpha </td><td> Alpha </td></tr><tr><td> Luminance </td><td> Red </td></tr><tr><td> Intensity
-%% </td><td> Red </td></tr></tbody></table>
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetConvolutionFilter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetConvolutionFilter.xml">external</a> documentation.
 -spec getConvolutionFilter(Target, Format, Type, Image) -> 'ok' when Target :: enum(),Format :: enum(),Type :: enum(),Image :: mem().
 getConvolutionFilter(Target,Format,Type,Image) ->
   send_bin(Image),
@@ -8695,34 +3375,7 @@ getConvolutionFilter(Target,Format,Type,Image) ->
 %% which convolution filter is queried.  `Pname'  determines which parameter is returned:
 %% 
 %%
-%% `?GL_CONVOLUTION_BORDER_MODE':  The convolution border mode. See  {@link gl:convolutionParameterf/3} 
-%%  for a list of border modes. 
-%%
-%% `?GL_CONVOLUTION_BORDER_COLOR':  The current convolution border color.  `Params' 
-%% must be a pointer to an array of four elements, which will receive the red, green, blue,
-%% and alpha border colors. 
-%%
-%% `?GL_CONVOLUTION_FILTER_SCALE':  The current filter scale factors.  `Params' 
-%% must be a pointer to an array of four elements, which will receive the red, green, blue,
-%% and alpha filter scale factors in that order. 
-%%
-%% `?GL_CONVOLUTION_FILTER_BIAS':  The current filter bias factors.  `Params'  must
-%% be a pointer to an array of four elements, which will receive the red, green, blue, and
-%% alpha filter bias terms in that order. 
-%%
-%% `?GL_CONVOLUTION_FORMAT':  The current internal format. See  {@link gl:convolutionFilter1D/6} 
-%% ,  {@link gl:convolutionFilter2D/7} , and  {@link gl:separableFilter2D/8}  for lists of allowable
-%% formats. 
-%%
-%% `?GL_CONVOLUTION_WIDTH':  The current filter image width. 
-%%
-%% `?GL_CONVOLUTION_HEIGHT':  The current filter image height. 
-%%
-%% `?GL_MAX_CONVOLUTION_WIDTH':  The maximum acceptable filter image width. 
-%%
-%% `?GL_MAX_CONVOLUTION_HEIGHT':  The maximum acceptable filter image height. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetConvolutionParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetConvolutionParameter.xml">external</a> documentation.
 -spec getConvolutionParameterfv(Target, Pname) -> {float(),float(),float(),float()} when Target :: enum(),Pname :: enum().
 getConvolutionParameterfv(Target,Pname) ->
   call(5344, <<Target:?GLenum,Pname:?GLenum>>).
@@ -8738,52 +3391,7 @@ getConvolutionParameteriv(Target,Pname) ->
 %% ``gl:separableFilter2D'' builds a two-dimensional separable convolution filter kernel
 %% from two arrays of pixels. 
 %%
-%%  The pixel arrays specified by ( `Width' ,  `Format' ,  `Type' ,  `Row' )
-%% and ( `Height' ,  `Format' ,  `Type' ,  `Column' ) are processed just as if
-%% they had been passed to  {@link gl:drawPixels/5} , but processing stops after the final expansion
-%% to RGBA is completed. 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a convolution filter is specified,  `Row'  and  `Column' 
-%%  are treated as byte offsets into the buffer object's data store. 
-%%
-%%  Next, the R, G, B, and A components of all pixels in both arrays are scaled by the four
-%% separable 2D `?GL_CONVOLUTION_FILTER_SCALE' parameters and biased by the four separable
-%% 2D `?GL_CONVOLUTION_FILTER_BIAS' parameters. (The scale and bias parameters are set
-%% by  {@link gl:convolutionParameterf/3}  using the `?GL_SEPARABLE_2D' target and the names
-%% `?GL_CONVOLUTION_FILTER_SCALE' and `?GL_CONVOLUTION_FILTER_BIAS'. The parameters
-%% themselves are vectors of four values that are applied to red, green, blue, and alpha,
-%% in that order.) The R, G, B, and A values are not clamped to [0,1] at any time during
-%% this process. 
-%%
-%%  Each pixel is then converted to the internal format specified by  `Internalformat' .
-%% This conversion simply maps the component values of the pixel (R, G, B, and A) to the
-%% values included in the internal format (red, green, blue, alpha, luminance, and intensity).
-%% The mapping is as follows: <table><tbody><tr><td>` Internal Format '</td><td>` Red '
-%% </td><td>` Green '</td><td>` Blue '</td><td>` Alpha '</td><td>` Luminance '
-%% </td><td>` Intensity '</td></tr></tbody><tbody><tr><td>`?GL_LUMINANCE'</td><td></td>
-%% <td></td><td></td><td></td><td> R </td><td></td></tr><tr><td>`?GL_LUMINANCE_ALPHA'</td>
-%% <td></td><td></td><td></td><td> A </td><td> R </td><td></td></tr><tr><td>`?GL_INTENSITY'
-%% </td><td></td><td></td><td></td><td></td><td></td><td> R </td></tr><tr><td>`?GL_RGB'</td>
-%% <td> R </td><td> G </td><td> B </td><td></td><td></td><td></td></tr><tr><td>`?GL_RGBA'
-%% </td><td> R </td><td> G </td><td> B </td><td> A </td><td></td><td></td></tr></tbody></table>
-%% 
-%%
-%%  The red, green, blue, alpha, luminance, and/or intensity components of the resulting
-%% pixels are stored in floating-point rather than integer format. They form two one-dimensional
-%% filter kernel images. The row image is indexed by coordinate `i' starting at zero
-%% and increasing from left to right. Each location in the row image is derived from element
-%% `i' of  `Row' . The column image is indexed by coordinate `j' starting at
-%% zero and increasing from bottom to top. Each location in the column image is derived from
-%% element `j' of  `Column' . 
-%%
-%%  Note that after a convolution is performed, the resulting color components are also scaled
-%% by their corresponding `?GL_POST_CONVOLUTION_c_SCALE' parameters and biased by their
-%% corresponding `?GL_POST_CONVOLUTION_c_BIAS' parameters (where `c' takes on the
-%% values `RED', `GREEN', `BLUE', and `ALPHA'). These parameters are
-%% set by  {@link gl:pixelTransferf/2} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glSeparableFilter2D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glSeparableFilter2D.xml">external</a> documentation.
 -spec separableFilter2D(Target, Internalformat, Width, Height, Format, Type, Row, Column) -> 'ok' when Target :: enum(),Internalformat :: enum(),Width :: integer(),Height :: integer(),Format :: enum(),Type :: enum(),Row :: offset()|mem(),Column :: offset()|mem().
 separableFilter2D(Target,Internalformat,Width,Height,Format,Type,Row,Column) when  is_integer(Row), is_integer(Column) ->
   cast(5346, <<Target:?GLenum,Internalformat:?GLenum,Width:?GLsizei,Height:?GLsizei,Format:?GLenum,Type:?GLenum,Row:?GLuint,Column:?GLuint>>);
@@ -8798,21 +3406,7 @@ separableFilter2D(Target,Internalformat,Width,Height,Format,Type,Row,Column) ->
 %% the same width as the histogram. No pixel transfer operations are performed on this image,
 %% but pixel storage modes that are applicable to 1D images are honored. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_PACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a histogram table is requested,  `Values'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  Color components that are requested in the specified  `Format' , but which are not
-%% included in the internal format of the histogram, are returned as zero. The assignments
-%% of internal color components to the components requested by  `Format'  are: <table><tbody>
-%% <tr><td>` Internal Component '</td><td>` Resulting Component '</td></tr></tbody>
-%% <tbody><tr><td> Red </td><td> Red </td></tr><tr><td> Green </td><td> Green </td></tr><tr><td>
-%%  Blue </td><td> Blue </td></tr><tr><td> Alpha </td><td> Alpha </td></tr><tr><td> Luminance
-%% </td><td> Red </td></tr></tbody></table>
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetHistogram.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetHistogram.xml">external</a> documentation.
 -spec getHistogram(Target, Reset, Format, Type, Values) -> 'ok' when Target :: enum(),Reset :: 0|1,Format :: enum(),Type :: enum(),Values :: mem().
 getHistogram(Target,Reset,Format,Type,Values) ->
   send_bin(Values),
@@ -8826,19 +3420,7 @@ getHistogram(Target,Reset,Format,Type,Values) ->
 %% table) or `?GL_PROXY_HISTOGRAM' (to obtain information from the most recent proxy
 %% request) and one of the following values for the  `Pname'  argument: 
 %%
-%% <table><tbody><tr><td>` Parameter '</td><td>` Description '</td></tr></tbody><tbody>
-%% <tr><td>`?GL_HISTOGRAM_WIDTH'</td><td> Histogram table width </td></tr><tr><td>`?GL_HISTOGRAM_FORMAT'
-%% </td><td> Internal format </td></tr><tr><td>`?GL_HISTOGRAM_RED_SIZE'</td><td> Red
-%% component counter size, in bits </td></tr><tr><td>`?GL_HISTOGRAM_GREEN_SIZE'</td><td>
-%%  Green component counter size, in bits </td></tr><tr><td>`?GL_HISTOGRAM_BLUE_SIZE'</td>
-%% <td> Blue component counter size, in bits </td></tr><tr><td>`?GL_HISTOGRAM_ALPHA_SIZE'
-%% </td><td> Alpha component counter size, in bits </td></tr><tr><td>`?GL_HISTOGRAM_LUMINANCE_SIZE'
-%% </td><td> Luminance component counter size, in bits </td></tr><tr><td>`?GL_HISTOGRAM_SINK'
-%% </td><td> Value of the `sink' parameter </td></tr></tbody></table>
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetHistogramParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetHistogramParameter.xml">external</a> documentation.
 -spec getHistogramParameterfv(Target, Pname) -> {float()} when Target :: enum(),Pname :: enum().
 getHistogramParameterfv(Target,Pname) ->
   call(5349, <<Target:?GLenum,Pname:?GLenum>>).
@@ -8857,26 +3439,7 @@ getHistogramParameteriv(Target,Pname) ->
 %% of the return values is determined by  `Format' , and their type is determined by  `Types' 
 %% . 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_PACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while minimum and maximum pixel values are requested,  `Values' 
-%%  is treated as a byte offset into the buffer object's data store. 
-%%
-%%  No pixel transfer operations are performed on the return values, but pixel storage modes
-%% that are applicable to one-dimensional images are performed. Color components that are
-%% requested in the specified  `Format' , but that are not included in the internal format
-%% of the minmax table, are returned as zero. The assignment of internal color components
-%% to the components requested by  `Format'  are as follows: 
-%%
-%% <table><tbody><tr><td>` Internal Component '</td><td>` Resulting Component '</td>
-%% </tr></tbody><tbody><tr><td> Red </td><td> Red </td></tr><tr><td> Green </td><td> Green </td>
-%% </tr><tr><td> Blue </td><td> Blue </td></tr><tr><td> Alpha </td><td> Alpha </td></tr><tr><td>
-%%  Luminance </td><td> Red </td></tr></tbody></table>
-%%
-%%  If  `Reset'  is `?GL_TRUE', the minmax table entries corresponding to the return
-%% values are reset to their initial values. Minimum and maximum values that are not returned
-%% are not modified, even if  `Reset'  is `?GL_TRUE'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetMinmax.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetMinmax.xml">external</a> documentation.
 -spec getMinmax(Target, Reset, Format, Types, Values) -> 'ok' when Target :: enum(),Reset :: 0|1,Format :: enum(),Types :: enum(),Values :: mem().
 getMinmax(Target,Reset,Format,Types,Values) ->
   send_bin(Values),
@@ -8887,14 +3450,7 @@ getMinmax(Target,Reset,Format,Types,Values) ->
 %% ``gl:getMinmaxParameter'' retrieves parameters for the current minmax table by setting  `Pname' 
 %%  to one of the following values: 
 %%
-%% <table><tbody><tr><td>` Parameter '</td><td>` Description '</td></tr></tbody><tbody>
-%% <tr><td>`?GL_MINMAX_FORMAT'</td><td> Internal format of minmax table </td></tr><tr><td>
-%% `?GL_MINMAX_SINK'</td><td> Value of the `sink' parameter </td></tr></tbody></table>
-%% 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetMinmaxParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetMinmaxParameter.xml">external</a> documentation.
 -spec getMinmaxParameterfv(Target, Pname) -> {float()} when Target :: enum(),Pname :: enum().
 getMinmaxParameterfv(Target,Pname) ->
   call(5352, <<Target:?GLenum,Pname:?GLenum>>).
@@ -8915,26 +3471,7 @@ getMinmaxParameteriv(Target,Pname) ->
 %% to be incremented.) If a histogram table entry is incremented beyond its maximum value,
 %% then its value becomes undefined. (This is not an error.) 
 %%
-%%  Histogramming is performed only for RGBA pixels (though these may be specified originally
-%% as color indices and converted to RGBA by index table lookup). Histogramming is enabled
-%% with  {@link gl:enable/1}  and disabled with  {@link gl:enable/1} . 
-%%
-%%  When  `Target'  is `?GL_HISTOGRAM', ``gl:histogram'' redefines the current
-%% histogram table to have  `Width'  entries of the format specified by  `Internalformat' 
-%% . The entries are indexed 0 through   width-1, and all entries are initialized to zero.
-%% The values in the previous histogram table, if any, are lost. If  `Sink'  is `?GL_TRUE'
-%% , then pixels are discarded after histogramming; no further processing of the pixels takes
-%% place, and no drawing, texture loading, or pixel readback will result. 
-%%
-%%  When  `Target'  is `?GL_PROXY_HISTOGRAM', ``gl:histogram'' computes all state
-%% information as if the histogram table were to be redefined, but does not actually define
-%% the new table. If the requested histogram table is too large to be supported, then the
-%% state information will be set to zero. This provides a way to determine if a histogram
-%% table with the given parameters can be supported. 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glHistogram.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glHistogram.xml">external</a> documentation.
 -spec histogram(Target, Width, Internalformat, Sink) -> 'ok' when Target :: enum(),Width :: integer(),Internalformat :: enum(),Sink :: 0|1.
 histogram(Target,Width,Internalformat,Sink) ->
   cast(5354, <<Target:?GLenum,Width:?GLsizei,Internalformat:?GLenum,Sink:?GLboolean>>).
@@ -8954,16 +3491,7 @@ histogram(Target,Width,Internalformat,Sink) ->
 %% calling  {@link gl:enable/1}  or  {@link gl:enable/1} , respectively, with an argument of `?GL_MINMAX'
 %% . 
 %%
-%% ``gl:minmax'' redefines the current minmax table to have entries of the format specified
-%% by  `Internalformat' . The maximum element is initialized with the smallest possible
-%% component values, and the minimum element is initialized with the largest possible component
-%% values. The values in the previous minmax table, if any, are lost. If  `Sink'  is `?GL_TRUE'
-%% , then pixels are discarded after minmax; no further processing of the pixels takes place,
-%% and no drawing, texture loading, or pixel readback will result. 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMinmax.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glMinmax.xml">external</a> documentation.
 -spec minmax(Target, Internalformat, Sink) -> 'ok' when Target :: enum(),Internalformat :: enum(),Sink :: 0|1.
 minmax(Target,Internalformat,Sink) ->
   cast(5355, <<Target:?GLenum,Internalformat:?GLenum,Sink:?GLboolean>>).
@@ -8972,7 +3500,7 @@ minmax(Target,Internalformat,Sink) ->
 %%
 %% ``gl:resetHistogram'' resets all the elements of the current histogram table to zero. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glResetHistogram.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glResetHistogram.xml">external</a> documentation.
 -spec resetHistogram(Target) -> 'ok' when Target :: enum().
 resetHistogram(Target) ->
   cast(5356, <<Target:?GLenum>>).
@@ -8983,7 +3511,7 @@ resetHistogram(Target) ->
 %% values: the ``maximum'' element receives the minimum possible component values, and the
 %% ``minimum'' element receives the maximum possible component values. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glResetMinmax.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glResetMinmax.xml">external</a> documentation.
 -spec resetMinmax(Target) -> 'ok' when Target :: enum().
 resetMinmax(Target) ->
   cast(5357, <<Target:?GLenum>>).
@@ -8994,7 +3522,7 @@ resetMinmax(Target) ->
 %% affect. The number of texture units an implementation supports is implementation dependent,
 %% but must be at least 80. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glActiveTexture.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glActiveTexture.xhtml">external</a> documentation.
 -spec activeTexture(Texture) -> 'ok' when Texture :: enum().
 activeTexture(Texture) ->
   cast(5358, <<Texture:?GLenum>>).
@@ -9005,22 +3533,7 @@ activeTexture(Texture) ->
 %% locations to generate antialiasing effects. Multisampling transparently antialiases points,
 %% lines, polygons, and images if it is enabled. 
 %%
-%%  `Value'  is used in constructing a temporary mask used in determining which samples
-%% will be used in resolving the final fragment color. This mask is bitwise-anded with the
-%% coverage mask generated from the multisampling computation. If the  `Invert'  flag
-%% is set, the temporary mask is inverted (all bits flipped) and then the bitwise-and is
-%% computed. 
-%%
-%%  If an implementation does not have any multisample buffers available, or multisampling
-%% is disabled, rasterization occurs with only a single sample computing a pixel's final
-%% RGB color. 
-%%
-%%  Provided an implementation supports multisample buffers, and multisampling is enabled,
-%% then a pixel's final color is generated by combining several samples per pixel. Each sample
-%% contains color, depth, and stencil information, allowing those operations to be performed
-%% on each sample. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glSampleCoverage.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glSampleCoverage.xhtml">external</a> documentation.
 -spec sampleCoverage(Value, Invert) -> 'ok' when Value :: clamp(),Invert :: 0|1.
 sampleCoverage(Value,Invert) ->
   cast(5359, <<Value:?GLclampf,Invert:?GLboolean>>).
@@ -9029,56 +3542,7 @@ sampleCoverage(Value,Invert) ->
 %%
 %%  Texturing allows elements of an image array to be read by shaders. 
 %%
-%% ``gl:compressedTexImage3D'' loads a previously defined, and retrieved, compressed three-dimensional
-%% texture image if  `Target'  is `?GL_TEXTURE_3D' (see  {@link gl:texImage3D/10} ). 
-%%
-%%  If  `Target'  is `?GL_TEXTURE_2D_ARRAY',  `Data'  is treated as an array of
-%% compressed 2D textures. 
-%%
-%%  If  `Target'  is `?GL_PROXY_TEXTURE_3D' or `?GL_PROXY_TEXTURE_2D_ARRAY',
-%% no data is read from  `Data' , but all of the texture image state is recalculated,
-%% checked for consistency, and checked against the implementation's capabilities. If the
-%% implementation cannot handle a texture of the requested texture size, it sets all of the
-%% image state to 0, but does not generate an error (see  {@link gl:getError/0} ). To query
-%% for an entire mipmap array, use an image array level greater than or equal to 1. 
-%%
-%%  `Internalformat'  must be a known compressed image format (such as `?GL_RGTC')
-%% or an extension-specified compressed-texture format. When a texture is loaded with  {@link gl:texImage2D/9} 
-%%  using a generic compressed texture format (e.g., `?GL_COMPRESSED_RGB'), the GL selects
-%% from one of its extensions supporting compressed textures. In order to load the compressed
-%% texture image using ``gl:compressedTexImage3D'', query the compressed texture image's
-%% size and format using  {@link gl:getTexLevelParameterfv/3} . 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a texture image is specified,  `Data'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  If the compressed data are arranged into fixed-size blocks of texels, the pixel storage
-%% modes can be used to select a sub-rectangle from a larger containing rectangle. These
-%% pixel storage modes operate in the same way as they do for  {@link gl:texImage1D/8} . In
-%% the following description, denote by  b s,  b w,  b h, and  b d, the values of pixel storage
-%% modes `?GL_UNPACK_COMPRESSED_BLOCK_SIZE', `?GL_UNPACK_COMPRESSED_BLOCK_WIDTH', `?GL_UNPACK_COMPRESSED_BLOCK_HEIGHT'
-%% , and `?GL_UNPACK_COMPRESSED_BLOCK_DEPTH', respectively.  b s is the compressed block
-%% size in bytes;  b w,  b h, and  b d are the compressed block width, height, and depth
-%% in pixels. 
-%%
-%%  By default the pixel storage modes `?GL_UNPACK_ROW_LENGTH', `?GL_UNPACK_SKIP_ROWS'
-%% , `?GL_UNPACK_SKIP_PIXELS', `?GL_UNPACK_IMAGE_HEIGHT' and `?GL_UNPACK_SKIP_IMAGES'
-%%  are ignored for compressed images. To enable `?GL_UNPACK_SKIP_PIXELS' and `?GL_UNPACK_ROW_LENGTH'
-%% ,  b s and  b w must both be non-zero. To also enable `?GL_UNPACK_SKIP_ROWS' and `?GL_UNPACK_IMAGE_HEIGHT'
-%% ,  b h must be non-zero. To also enable `?GL_UNPACK_SKIP_IMAGES',  b d must be non-zero.
-%% All parameters must be consistent with the compressed format to produce the desired results.
-%% 
-%%
-%%  When selecting a sub-rectangle from a compressed image: the value of `?GL_UNPACK_SKIP_PIXELS'
-%%  must be a multiple of  b w;the value of `?GL_UNPACK_SKIP_ROWS' must be a multiple
-%% of  b w;the value of `?GL_UNPACK_SKIP_IMAGES' must be a multiple of  b w.
-%%
-%%  `ImageSize'  must be equal to: 
-%%
-%%  b s×|width b/w|×|height b/h|×|depth b/d|
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCompressedTexImage3D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCompressedTexImage3D.xhtml">external</a> documentation.
 -spec compressedTexImage3D(Target, Level, Internalformat, Width, Height, Depth, Border, ImageSize, Data) -> 'ok' when Target :: enum(),Level :: integer(),Internalformat :: enum(),Width :: integer(),Height :: integer(),Depth :: integer(),Border :: integer(),ImageSize :: integer(),Data :: offset()|mem().
 compressedTexImage3D(Target,Level,Internalformat,Width,Height,Depth,Border,ImageSize,Data) when  is_integer(Data) ->
   cast(5360, <<Target:?GLenum,Level:?GLint,Internalformat:?GLenum,Width:?GLsizei,Height:?GLsizei,Depth:?GLsizei,Border:?GLint,ImageSize:?GLsizei,Data:?GLuint>>);
@@ -9090,57 +3554,7 @@ compressedTexImage3D(Target,Level,Internalformat,Width,Height,Depth,Border,Image
 %%
 %%  Texturing allows elements of an image array to be read by shaders. 
 %%
-%% ``gl:compressedTexImage2D'' loads a previously defined, and retrieved, compressed two-dimensional
-%% texture image if  `Target'  is `?GL_TEXTURE_2D', or one of the cube map faces
-%% such as `?GL_TEXTURE_CUBE_MAP_POSITIVE_X'. (see  {@link gl:texImage2D/9} ). 
-%%
-%%  If  `Target'  is `?GL_TEXTURE_1D_ARRAY',  `Data'  is treated as an array of
-%% compressed 1D textures. 
-%%
-%%  If  `Target'  is `?GL_PROXY_TEXTURE_2D', `?GL_PROXY_TEXTURE_1D_ARRAY' or `?GL_PROXY_CUBE_MAP'
-%% , no data is read from  `Data' , but all of the texture image state is recalculated,
-%% checked for consistency, and checked against the implementation's capabilities. If the
-%% implementation cannot handle a texture of the requested texture size, it sets all of the
-%% image state to 0, but does not generate an error (see  {@link gl:getError/0} ). To query
-%% for an entire mipmap array, use an image array level greater than or equal to 1. 
-%%
-%%  `Internalformat'  must be a known compressed image format (such as `?GL_RGTC')
-%% or an extension-specified compressed-texture format. When a texture is loaded with  {@link gl:texImage2D/9} 
-%%  using a generic compressed texture format (e.g., `?GL_COMPRESSED_RGB'), the GL selects
-%% from one of its extensions supporting compressed textures. In order to load the compressed
-%% texture image using ``gl:compressedTexImage2D'', query the compressed texture image's
-%% size and format using  {@link gl:getTexLevelParameterfv/3} . 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a texture image is specified,  `Data'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  If the compressed data are arranged into fixed-size blocks of texels, the pixel storage
-%% modes can be used to select a sub-rectangle from a larger containing rectangle. These
-%% pixel storage modes operate in the same way as they do for  {@link gl:texImage2D/9} . In
-%% the following description, denote by  b s,  b w,  b h, and  b d, the values of pixel storage
-%% modes `?GL_UNPACK_COMPRESSED_BLOCK_SIZE', `?GL_UNPACK_COMPRESSED_BLOCK_WIDTH', `?GL_UNPACK_COMPRESSED_BLOCK_HEIGHT'
-%% , and `?GL_UNPACK_COMPRESSED_BLOCK_DEPTH', respectively.  b s is the compressed block
-%% size in bytes;  b w,  b h, and  b d are the compressed block width, height, and depth
-%% in pixels. 
-%%
-%%  By default the pixel storage modes `?GL_UNPACK_ROW_LENGTH', `?GL_UNPACK_SKIP_ROWS'
-%% , `?GL_UNPACK_SKIP_PIXELS', `?GL_UNPACK_IMAGE_HEIGHT' and `?GL_UNPACK_SKIP_IMAGES'
-%%  are ignored for compressed images. To enable `?GL_UNPACK_SKIP_PIXELS' and `?GL_UNPACK_ROW_LENGTH'
-%% ,  b s and  b w must both be non-zero. To also enable `?GL_UNPACK_SKIP_ROWS' and `?GL_UNPACK_IMAGE_HEIGHT'
-%% ,  b h must be non-zero. To also enable `?GL_UNPACK_SKIP_IMAGES',  b d must be non-zero.
-%% All parameters must be consistent with the compressed format to produce the desired results.
-%% 
-%%
-%%  When selecting a sub-rectangle from a compressed image: the value of `?GL_UNPACK_SKIP_PIXELS'
-%%  must be a multiple of  b w;the value of `?GL_UNPACK_SKIP_ROWS' must be a multiple
-%% of  b w.
-%%
-%%  `ImageSize'  must be equal to: 
-%%
-%%  b s×|width b/w|×|height b/h|
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCompressedTexImage2D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCompressedTexImage2D.xhtml">external</a> documentation.
 -spec compressedTexImage2D(Target, Level, Internalformat, Width, Height, Border, ImageSize, Data) -> 'ok' when Target :: enum(),Level :: integer(),Internalformat :: enum(),Width :: integer(),Height :: integer(),Border :: integer(),ImageSize :: integer(),Data :: offset()|mem().
 compressedTexImage2D(Target,Level,Internalformat,Width,Height,Border,ImageSize,Data) when  is_integer(Data) ->
   cast(5362, <<Target:?GLenum,Level:?GLint,Internalformat:?GLenum,Width:?GLsizei,Height:?GLsizei,Border:?GLint,ImageSize:?GLsizei,Data:?GLuint>>);
@@ -9152,52 +3566,7 @@ compressedTexImage2D(Target,Level,Internalformat,Width,Height,Border,ImageSize,D
 %%
 %%  Texturing allows elements of an image array to be read by shaders. 
 %%
-%% ``gl:compressedTexImage1D'' loads a previously defined, and retrieved, compressed one-dimensional
-%% texture image if  `Target'  is `?GL_TEXTURE_1D' (see  {@link gl:texImage1D/8} ). 
-%%
-%%  If  `Target'  is `?GL_PROXY_TEXTURE_1D', no data is read from  `Data' , but
-%% all of the texture image state is recalculated, checked for consistency, and checked against
-%% the implementation's capabilities. If the implementation cannot handle a texture of the
-%% requested texture size, it sets all of the image state to 0, but does not generate an
-%% error (see  {@link gl:getError/0} ). To query for an entire mipmap array, use an image array
-%% level greater than or equal to 1. 
-%%
-%%  `Internalformat'  must be an extension-specified compressed-texture format. When a
-%% texture is loaded with  {@link gl:texImage1D/8}  using a generic compressed texture format
-%% (e.g., `?GL_COMPRESSED_RGB') the GL selects from one of its extensions supporting
-%% compressed textures. In order to load the compressed texture image using ``gl:compressedTexImage1D''
-%% , query the compressed texture image's size and format using  {@link gl:getTexLevelParameterfv/3} 
-%% . 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a texture image is specified,  `Data'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  If the compressed data are arranged into fixed-size blocks of texels, the pixel storage
-%% modes can be used to select a sub-rectangle from a larger containing rectangle. These
-%% pixel storage modes operate in the same way as they do for  {@link gl:texImage1D/8} . In
-%% the following description, denote by  b s,  b w,  b h, and  b d, the values of pixel storage
-%% modes `?GL_UNPACK_COMPRESSED_BLOCK_SIZE', `?GL_UNPACK_COMPRESSED_BLOCK_WIDTH', `?GL_UNPACK_COMPRESSED_BLOCK_HEIGHT'
-%% , and `?GL_UNPACK_COMPRESSED_BLOCK_DEPTH', respectively.  b s is the compressed block
-%% size in bytes;  b w,  b h, and  b d are the compressed block width, height, and depth
-%% in pixels. 
-%%
-%%  By default the pixel storage modes `?GL_UNPACK_ROW_LENGTH', `?GL_UNPACK_SKIP_ROWS'
-%% , `?GL_UNPACK_SKIP_PIXELS', `?GL_UNPACK_IMAGE_HEIGHT' and `?GL_UNPACK_SKIP_IMAGES'
-%%  are ignored for compressed images. To enable `?GL_UNPACK_SKIP_PIXELS' and `?GL_UNPACK_ROW_LENGTH'
-%% ,  b s and  b w must both be non-zero. To also enable `?GL_UNPACK_SKIP_ROWS' and `?GL_UNPACK_IMAGE_HEIGHT'
-%% ,  b h must be non-zero. To also enable `?GL_UNPACK_SKIP_IMAGES',  b d must be non-zero.
-%% All parameters must be consistent with the compressed format to produce the desired results.
-%% 
-%%
-%%  When selecting a sub-rectangle from a compressed image: the value of `?GL_UNPACK_SKIP_PIXELS'
-%%  must be a multiple of  b w;
-%%
-%%  `ImageSize'  must be equal to: 
-%%
-%%  b s×|width b/w|
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCompressedTexImage1D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCompressedTexImage1D.xhtml">external</a> documentation.
 -spec compressedTexImage1D(Target, Level, Internalformat, Width, Border, ImageSize, Data) -> 'ok' when Target :: enum(),Level :: integer(),Internalformat :: enum(),Width :: integer(),Border :: integer(),ImageSize :: integer(),Data :: offset()|mem().
 compressedTexImage1D(Target,Level,Internalformat,Width,Border,ImageSize,Data) when  is_integer(Data) ->
   cast(5364, <<Target:?GLenum,Level:?GLint,Internalformat:?GLenum,Width:?GLsizei,Border:?GLint,ImageSize:?GLsizei,Data:?GLuint>>);
@@ -9209,25 +3578,7 @@ compressedTexImage1D(Target,Level,Internalformat,Width,Border,ImageSize,Data) ->
 %%
 %%  Texturing allows elements of an image array to be read by shaders. 
 %%
-%% ``gl:compressedTexSubImage3D'' redefines a contiguous subregion of an existing three-dimensional
-%% texture image. The texels referenced by  `Data'  replace the portion of the existing
-%% texture array with x indices  `Xoffset'  and  xoffset+width-1, and the y indices  `Yoffset' 
-%%  and  yoffset+height-1, and the z indices  `Zoffset'  and  zoffset+depth-1, inclusive.
-%% This region may not include any texels outside the range of the texture array as it was
-%% originally specified. It is not an error to specify a subtexture with width of 0, but
-%% such a specification has no effect. 
-%%
-%%  `Internalformat'  must be a known compressed image format (such as `?GL_RGTC')
-%% or an extension-specified compressed-texture format. The  `Format'  of the compressed
-%% texture image is selected by the GL implementation that compressed it (see  {@link gl:texImage3D/10} 
-%% ) and should be queried at the time the texture was compressed with  {@link gl:getTexLevelParameterfv/3} 
-%% . 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a texture image is specified,  `Data'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCompressedTexSubImage3D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCompressedTexSubImage3D.xhtml">external</a> documentation.
 -spec compressedTexSubImage3D(Target, Level, Xoffset, Yoffset, Zoffset, Width, Height, Depth, Format, ImageSize, Data) -> 'ok' when Target :: enum(),Level :: integer(),Xoffset :: integer(),Yoffset :: integer(),Zoffset :: integer(),Width :: integer(),Height :: integer(),Depth :: integer(),Format :: enum(),ImageSize :: integer(),Data :: offset()|mem().
 compressedTexSubImage3D(Target,Level,Xoffset,Yoffset,Zoffset,Width,Height,Depth,Format,ImageSize,Data) when  is_integer(Data) ->
   cast(5366, <<Target:?GLenum,Level:?GLint,Xoffset:?GLint,Yoffset:?GLint,Zoffset:?GLint,Width:?GLsizei,Height:?GLsizei,Depth:?GLsizei,Format:?GLenum,ImageSize:?GLsizei,Data:?GLuint>>);
@@ -9239,24 +3590,7 @@ compressedTexSubImage3D(Target,Level,Xoffset,Yoffset,Zoffset,Width,Height,Depth,
 %%
 %%  Texturing allows elements of an image array to be read by shaders. 
 %%
-%% ``gl:compressedTexSubImage2D'' redefines a contiguous subregion of an existing two-dimensional
-%% texture image. The texels referenced by  `Data'  replace the portion of the existing
-%% texture array with x indices  `Xoffset'  and   xoffset+width-1, and the y indices  `Yoffset' 
-%%  and   yoffset+height-1, inclusive.  This region may not include any texels outside the
-%% range of the texture array as it was originally specified. It is not an error to specify
-%% a subtexture with width of 0, but such a specification has no effect. 
-%%
-%%  `Internalformat'  must be a known compressed image format (such as `?GL_RGTC')
-%% or an extension-specified compressed-texture format. The  `Format'  of the compressed
-%% texture image is selected by the GL implementation that compressed it (see  {@link gl:texImage2D/9} 
-%% ) and should be queried at the time the texture was compressed with  {@link gl:getTexLevelParameterfv/3} 
-%% . 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a texture image is specified,  `Data'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCompressedTexSubImage2D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCompressedTexSubImage2D.xhtml">external</a> documentation.
 -spec compressedTexSubImage2D(Target, Level, Xoffset, Yoffset, Width, Height, Format, ImageSize, Data) -> 'ok' when Target :: enum(),Level :: integer(),Xoffset :: integer(),Yoffset :: integer(),Width :: integer(),Height :: integer(),Format :: enum(),ImageSize :: integer(),Data :: offset()|mem().
 compressedTexSubImage2D(Target,Level,Xoffset,Yoffset,Width,Height,Format,ImageSize,Data) when  is_integer(Data) ->
   cast(5368, <<Target:?GLenum,Level:?GLint,Xoffset:?GLint,Yoffset:?GLint,Width:?GLsizei,Height:?GLsizei,Format:?GLenum,ImageSize:?GLsizei,Data:?GLuint>>);
@@ -9268,24 +3602,7 @@ compressedTexSubImage2D(Target,Level,Xoffset,Yoffset,Width,Height,Format,ImageSi
 %%
 %%  Texturing allows elements of an image array to be read by shaders. 
 %%
-%% ``gl:compressedTexSubImage1D'' redefines a contiguous subregion of an existing one-dimensional
-%% texture image. The texels referenced by  `Data'  replace the portion of the existing
-%% texture array with x indices  `Xoffset'  and   xoffset+width-1, inclusive. This region
-%% may not include any texels outside the range of the texture array as it was originally
-%% specified. It is not an error to specify a subtexture with width of 0, but such a specification
-%% has no effect. 
-%%
-%%  `Internalformat'  must be a known compressed image format (such as `?GL_RGTC')
-%% or an extension-specified compressed-texture format. The  `Format'  of the compressed
-%% texture image is selected by the GL implementation that compressed it (see  {@link gl:texImage1D/8} 
-%% ), and should be queried at the time the texture was compressed with  {@link gl:getTexLevelParameterfv/3} 
-%% . 
-%%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a texture image is specified,  `Data'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCompressedTexSubImage1D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCompressedTexSubImage1D.xhtml">external</a> documentation.
 -spec compressedTexSubImage1D(Target, Level, Xoffset, Width, Format, ImageSize, Data) -> 'ok' when Target :: enum(),Level :: integer(),Xoffset :: integer(),Width :: integer(),Format :: enum(),ImageSize :: integer(),Data :: offset()|mem().
 compressedTexSubImage1D(Target,Level,Xoffset,Width,Format,ImageSize,Data) when  is_integer(Data) ->
   cast(5370, <<Target:?GLenum,Level:?GLint,Xoffset:?GLint,Width:?GLsizei,Format:?GLenum,ImageSize:?GLsizei,Data:?GLuint>>);
@@ -9302,20 +3619,7 @@ compressedTexSubImage1D(Target,Level,Xoffset,Width,Format,ImageSize,Data) ->
 %% ), or  {@link gl:texImage3D/10}  (`?GL_TEXTURE_3D').  `Lod'  specifies the level-of-detail
 %% number of the desired image. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_PIXEL_PACK_BUFFER' target
-%%  (see  {@link gl:bindBuffer/2} ) while a texture image is requested,  `Img'  is treated
-%% as a byte offset into the buffer object's data store. 
-%%
-%%  To minimize errors, first verify that the texture is compressed by calling  {@link gl:getTexLevelParameterfv/3} 
-%%  with argument `?GL_TEXTURE_COMPRESSED'. If the texture is compressed, then determine
-%% the amount of memory required to store the compressed texture by calling  {@link gl:getTexLevelParameterfv/3} 
-%%  with argument `?GL_TEXTURE_COMPRESSED_IMAGE_SIZE'. Finally, retrieve the internal
-%% format of the texture by calling  {@link gl:getTexLevelParameterfv/3}  with argument `?GL_TEXTURE_INTERNAL_FORMAT'
-%% . To store the texture for later use, associate the internal format and size with the
-%% retrieved texture image. These data can be used by the respective texture or subtexture
-%% loading routine used for loading  `Target'  textures. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetCompressedTexImage.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetCompressedTexImage.xhtml">external</a> documentation.
 -spec getCompressedTexImage(Target, Lod, Img) -> 'ok' when Target :: enum(),Lod :: integer(),Img :: mem().
 getCompressedTexImage(Target,Lod,Img) ->
   send_bin(Img),
@@ -9328,7 +3632,7 @@ getCompressedTexImage(Target,Lod,Img) ->
 %% or  {@link gl:enableClientState/1} , respectively, when called with a parameter of `?GL_TEXTURE_COORD_ARRAY'
 %% . 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClientActiveTexture.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glClientActiveTexture.xml">external</a> documentation.
 -spec clientActiveTexture(Texture) -> 'ok' when Texture :: enum().
 clientActiveTexture(Texture) ->
   cast(5373, <<Texture:?GLenum>>).
@@ -9341,12 +3645,7 @@ clientActiveTexture(Texture) ->
 %%  t r 1),
 %% and ``gl:multiTexCoord4'' defines all four components explicitly as (s t r q). 
 %%
-%%  The current texture coordinates are part of the data that is associated with each vertex
-%% and with the current raster position. Initially, the values for (s t r q) are  (0 0 0 1). 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMultiTexCoord.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glMultiTexCoord.xml">external</a> documentation.
 -spec multiTexCoord1d(Target, S) -> 'ok' when Target :: enum(),S :: float().
 multiTexCoord1d(Target,S) ->
   cast(5374, <<Target:?GLenum,0:32,S:?GLdouble>>).
@@ -9511,19 +3810,7 @@ multiTexCoord4sv(Target,{S,T,R,Q}) ->  multiTexCoord4s(Target,S,T,R,Q).
 %% specified by  `M' . The current matrix is the projection matrix, modelview matrix,
 %% or texture matrix, depending on the current matrix mode (see  {@link gl:matrixMode/1} ). 
 %%
-%%  The current matrix, M, defines a transformation of coordinates. For instance, assume
-%% M refers to the modelview matrix. If   v=(v[0] v[1] v[2] v[3]) is the set of object coordinates of a vertex,
-%% and  `M'  points to an array of   16 single- or double-precision floating-point values
-%%   m={m[0] m[1] ... m[15]}, then the modelview transformation   M(v) does the following: 
-%%
-%%  M(v)=(m[0] m[1] m[2] m[3] m[4] m[5] m[6] m[7] m[8] m[9] m[10] m[11] m[12] m[13] m[14] m[15])×(v[0] v[1] v[2] v[3])
-%%
-%%  Projection and texture transformations are similarly defined. 
-%%
-%%  Calling ``gl:loadTransposeMatrix'' with matrix   M is identical in operation to  {@link gl:loadMatrixd/1} 
-%%  with   M T, where   T represents the transpose. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLoadTransposeMatrix.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glLoadTransposeMatrix.xml">external</a> documentation.
 -spec loadTransposeMatrixf(M) -> 'ok' when M :: matrix().
 loadTransposeMatrixf({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16}) ->
   cast(5390, <<M1:?GLfloat,M2:?GLfloat,M3:?GLfloat,M4:?GLfloat,M5:?GLfloat,M6:?GLfloat,M7:?GLfloat,M8:?GLfloat,M9:?GLfloat,M10:?GLfloat,M11:?GLfloat,M12:?GLfloat,M13:?GLfloat,M14:?GLfloat,M15:?GLfloat,M16:?GLfloat>>);
@@ -9543,10 +3830,7 @@ loadTransposeMatrixd({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12}) ->
 %% ``gl:multTransposeMatrix'' multiplies the current matrix with the one specified using  `M' 
 %% , and replaces the current matrix with the product. 
 %%
-%%  The current matrix is determined by the current matrix mode (see  {@link gl:matrixMode/1} ).
-%% It is either the projection matrix, modelview matrix, or the texture matrix. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMultTransposeMatrix.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glMultTransposeMatrix.xml">external</a> documentation.
 -spec multTransposeMatrixf(M) -> 'ok' when M :: matrix().
 multTransposeMatrixf({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16}) ->
   cast(5392, <<M1:?GLfloat,M2:?GLfloat,M3:?GLfloat,M4:?GLfloat,M5:?GLfloat,M6:?GLfloat,M7:?GLfloat,M8:?GLfloat,M9:?GLfloat,M10:?GLfloat,M11:?GLfloat,M12:?GLfloat,M13:?GLfloat,M14:?GLfloat,M15:?GLfloat,M16:?GLfloat>>);
@@ -9568,72 +3852,7 @@ multTransposeMatrixd({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12}) ->
 %% is initially disabled. Use  {@link gl:enable/1}  and  {@link gl:enable/1}  with argument `?GL_BLEND'
 %%  to enable and disable blending. 
 %%
-%% ``gl:blendFuncSeparate'' defines the operation of blending for all draw buffers when
-%% it is enabled. ``gl:blendFuncSeparatei'' defines the operation of blending for a single
-%% draw buffer specified by  `Buf'  when enabled for that draw buffer.  `SrcRGB'  specifies
-%% which method is used to scale the source RGB-color components.  `DstRGB'  specifies
-%% which method is used to scale the destination RGB-color components. Likewise,  `SrcAlpha' 
-%%  specifies which method is used to scale the source alpha color component, and  `DstAlpha' 
-%%  specifies which method is used to scale the destination alpha component. The possible
-%% methods are described in the following table. Each method defines four scale factors,
-%% one each for red, green, blue, and alpha. 
-%%
-%%  In the table and in subsequent equations, first source, second source and destination
-%% color components are referred to as (R s0 G s0 B s0 A s0), (R s1 G s1 B s1 A s1), and (R d G d B d A d), respectively. The color specified by  {@link gl:blendColor/4} 
-%%  is referred to as (R c G c B c A c). They are understood to have integer values between 0 and (k R k G k B
-%% k A), where 
-%%
-%%  k c=2(m c)-1
-%%
-%%  and (m R m G m B m A) is the number of red, green, blue, and alpha bitplanes. 
-%%
-%%  Source and destination scale factors are referred to as (s R s G s B s A) and (d R d G d B d A). All scale factors have
-%% range  [0 1]. 
-%%
-%% <table><tbody><tr><td>` Parameter '</td><td>` RGB Factor '</td><td>` Alpha Factor '
-%% </td></tr></tbody><tbody><tr><td>`?GL_ZERO'</td><td>(0 0 0)</td><td> 0</td></tr><tr><td>`?GL_ONE'
-%% </td><td>(1 1 1)</td><td> 1</td></tr><tr><td>`?GL_SRC_COLOR'</td><td>(R s0 k/R G s0 k/G B s0
-%% k/B)</td><td> A s0 k/A</td>
-%% </tr><tr><td>`?GL_ONE_MINUS_SRC_COLOR'</td><td>(1 1 1 1)-(R s0 k/R G s0 k/G B s0 k/B)</td><td> 1-A s0 k/A</td></tr><tr><td>
-%% `?GL_DST_COLOR'</td><td>(R d k/R G d k/G B d k/B)</td><td> A d k/A</td></tr><tr><td>`?GL_ONE_MINUS_DST_COLOR'
-%% </td><td>(1 1 1)-(R d k/R G d k/G B d k/B)</td><td> 1-A d k/A</td></tr><tr><td>`?GL_SRC_ALPHA'</td><td>(A s0 k/A A s0
-%% k/A A s0 k/A)</td><td> A
-%% s0 k/A</td></tr><tr><td>`?GL_ONE_MINUS_SRC_ALPHA'</td><td>(1 1 1)-(A s0 k/A A s0 k/A A s0 k/A
-%% )</td><td> 1-A s0 k/A</td></tr>
-%% <tr><td>`?GL_DST_ALPHA'</td><td>(A d k/A A d k/A A d k/A)</td><td> A d k/A</td></tr><tr><td>`?GL_ONE_MINUS_DST_ALPHA'
-%% </td><td>(1 1 1)-(A d k/A A d k/A A d k/A)</td><td> 1-A d k/A</td></tr><tr><td>`?GL_CONSTANT_COLOR'</td><td>(R c G c
-%% B c)</td><td>
-%%  A c</td></tr><tr><td>`?GL_ONE_MINUS_CONSTANT_COLOR'</td><td>(1 1 1)-(R c G c B c)</td><td> 1-A c</td></tr>
-%% <tr><td>`?GL_CONSTANT_ALPHA'</td><td>(A c A c A c)</td><td> A c</td></tr><tr><td>`?GL_ONE_MINUS_CONSTANT_ALPHA'
-%% </td><td>(1 1 1)-(A c A c A c)</td><td> 1-A c</td></tr><tr><td>`?GL_SRC_ALPHA_SATURATE'</td><td>(i i i)</td><td>
-%%  1</td></tr><tr><td>`?GL_SRC1_COLOR'</td><td>(R s1 k/R G s1 k/G B s1 k/B)</td><td> A s1 k/A</td></tr><tr><td>`?GL_ONE_MINUS_SRC_COLOR'
-%% </td><td>(1 1 1 1)-(R s1 k/R G s1 k/G B s1 k/B)</td><td> 1-A s1 k/A</td></tr><tr><td>`?GL_SRC1_ALPHA'</td><td>(A s1 k/A A
-%% s1 k/A A s1 k/A)</td><td> A
-%% s1 k/A</td></tr><tr><td>`?GL_ONE_MINUS_SRC_ALPHA'</td><td>(1 1 1)-(A s1 k/A A s1 k/A A s1 k/A
-%% )</td><td> 1-A s1 k/A</td></tr>
-%% </tbody></table>
-%%
-%%  In the table, 
-%%
-%%  i=min(A s 1-(A d))
-%%
-%%  To determine the blended RGBA values of a pixel, the system uses the following equations:
-%% 
-%%
-%%  R d=min(k R R s  s R+R d  d R) G d=min(k G G s  s G+G d  d G) B d=min(k B B s  s B+B d  d B) A d=min(k A A s  s A+A d  d A)
-%%
-%%  Despite the apparent precision of the above equations, blending arithmetic is not exactly
-%% specified, because blending operates with imprecise integer color values. However, a blend
-%% factor that should be equal to 1 is guaranteed not to modify its multiplicand, and a blend
-%% factor equal to 0 reduces its multiplicand to 0. For example, when  `SrcRGB'  is `?GL_SRC_ALPHA'
-%% ,  `DstRGB'  is `?GL_ONE_MINUS_SRC_ALPHA', and   A s is equal to   k A, the equations
-%% reduce to simple replacement: 
-%%
-%%  R d=R s G d=G s B d=B s A d=A s
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBlendFuncSeparate.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBlendFuncSeparate.xhtml">external</a> documentation.
 -spec blendFuncSeparate(SfactorRGB, DfactorRGB, SfactorAlpha, DfactorAlpha) -> 'ok' when SfactorRGB :: enum(),DfactorRGB :: enum(),SfactorAlpha :: enum(),DfactorAlpha :: enum().
 blendFuncSeparate(SfactorRGB,DfactorRGB,SfactorAlpha,DfactorAlpha) ->
   cast(5394, <<SfactorRGB:?GLenum,DfactorRGB:?GLenum,SfactorAlpha:?GLenum,DfactorAlpha:?GLenum>>).
@@ -9646,19 +3865,7 @@ blendFuncSeparate(SfactorRGB,DfactorRGB,SfactorAlpha,DfactorAlpha) ->
 %% normals, and colors and use them to construct a sequence of primitives with a single call
 %% to ``gl:multiDrawArrays''. 
 %%
-%% ``gl:multiDrawArrays'' behaves identically to  {@link gl:drawArrays/3}  except that  `Primcount' 
-%%  separate ranges of elements are specified instead. 
-%%
-%%  When ``gl:multiDrawArrays'' is called, it uses  `Count'  sequential elements from
-%% each enabled array to construct a sequence of geometric primitives, beginning with element
-%%  `First' .  `Mode'  specifies what kind of primitives are constructed, and how the
-%% array elements construct those primitives. 
-%%
-%%  Vertex attributes that are modified by ``gl:multiDrawArrays'' have an unspecified value
-%% after ``gl:multiDrawArrays'' returns. Attributes that aren't modified remain well defined.
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMultiDrawArrays.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glMultiDrawArrays.xhtml">external</a> documentation.
 -spec multiDrawArrays(Mode, First, Count) -> 'ok' when Mode :: enum(),First :: [integer()]|mem(),Count :: [integer()]|mem().
 multiDrawArrays(Mode,First,Count) when  is_list(First), is_list(Count) ->
   FirstLen = length(First),
@@ -9677,15 +3884,7 @@ multiDrawArrays(Mode,First,Count) ->
 %%
 %%  The following values are accepted for  `Pname' : 
 %%
-%% `?GL_POINT_FADE_THRESHOLD_SIZE':  `Params'  is a single floating-point value that
-%% specifies the threshold value to which point sizes are clamped if they exceed the specified
-%% value. The default value is 1.0. 
-%%
-%% `?GL_POINT_SPRITE_COORD_ORIGIN':  `Params'  is a single enum specifying the point
-%% sprite texture coordinate origin, either `?GL_LOWER_LEFT' or `?GL_UPPER_LEFT'.
-%%  The default value is `?GL_UPPER_LEFT'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPointParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glPointParameter.xhtml">external</a> documentation.
 -spec pointParameterf(Pname, Param) -> 'ok' when Pname :: enum(),Param :: float().
 pointParameterf(Pname,Param) ->
   cast(5397, <<Pname:?GLenum,Param:?GLfloat>>).
@@ -9716,7 +3915,7 @@ pointParameteriv(Pname,Params) ->
 %% the current raster position. The value specified is interpolated and used in computing
 %% the fog color (see  {@link gl:fogf/2} ). 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFogCoord.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glFogCoord.xml">external</a> documentation.
 -spec fogCoordf(Coord) -> 'ok' when Coord :: float().
 fogCoordf(Coord) ->
   cast(5401, <<Coord:?GLfloat>>).
@@ -9742,22 +3941,7 @@ fogCoorddv({Coord}) ->  fogCoordd(Coord).
 %%  specifies the byte stride from one fog coordinate to the next, allowing vertices and
 %% attributes to be packed into a single array or stored in separate arrays. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_ARRAY_BUFFER' target  (see  {@link gl:bindBuffer/2} 
-%% ) while a fog coordinate array is specified,  `Pointer'  is treated as a byte offset
-%% into the buffer object's data store. Also, the buffer object binding (`?GL_ARRAY_BUFFER_BINDING'
-%% ) is saved as fog coordinate vertex array client-side state (`?GL_FOG_COORD_ARRAY_BUFFER_BINDING'
-%% ). 
-%%
-%%  When a fog coordinate array is specified,  `Type' ,  `Stride' , and  `Pointer' 
-%% are saved as client-side state, in addition to the current vertex array buffer object
-%% binding. 
-%%
-%%  To enable and disable the fog coordinate array, call  {@link gl:enableClientState/1}  and  {@link gl:enableClientState/1} 
-%%  with the argument `?GL_FOG_COORD_ARRAY'. If enabled, the fog coordinate array is
-%% used when  {@link gl:drawArrays/3} ,  {@link gl:multiDrawArrays/3} ,  {@link gl:drawElements/4} , see `glMultiDrawElements'
-%% ,  {@link gl:drawRangeElements/6} , or  {@link gl:arrayElement/1}  is called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFogCoordPointer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glFogCoordPointer.xml">external</a> documentation.
 -spec fogCoordPointer(Type, Stride, Pointer) -> 'ok' when Type :: enum(),Stride :: integer(),Pointer :: offset()|mem().
 fogCoordPointer(Type,Stride,Pointer) when  is_integer(Pointer) ->
   cast(5403, <<Type:?GLenum,Stride:?GLsizei,Pointer:?GLuint>>);
@@ -9770,31 +3954,7 @@ fogCoordPointer(Type,Stride,Pointer) ->
 %%  The GL stores both a primary four-valued RGBA color and a secondary four-valued RGBA
 %% color (where alpha is always set to 0.0) that is associated with every vertex. 
 %%
-%%  The secondary color is interpolated and applied to each fragment during rasterization
-%% when `?GL_COLOR_SUM' is enabled. When lighting is enabled, and `?GL_SEPARATE_SPECULAR_COLOR'
-%%  is specified, the value of the secondary color is assigned the value computed from the
-%% specular term of the lighting computation. Both the primary and secondary current colors
-%% are applied to each fragment, regardless of the state of `?GL_COLOR_SUM', under such
-%% conditions. When `?GL_SEPARATE_SPECULAR_COLOR' is specified, the value returned from
-%% querying the current secondary color is undefined. 
-%%
-%% ``gl:secondaryColor3b'', ``gl:secondaryColor3s'', and ``gl:secondaryColor3i'' take
-%% three signed byte, short, or long integers as arguments. When `v' is appended to
-%% the name, the color commands can take a pointer to an array of such values. 
-%%
-%%  Color values are stored in floating-point format, with unspecified mantissa and exponent
-%% sizes. Unsigned integer color components, when specified, are linearly mapped to floating-point
-%% values such that the largest representable value maps to 1.0 (full intensity), and 0 maps
-%% to 0.0 (zero intensity). Signed integer color components, when specified, are linearly
-%% mapped to floating-point values such that the most positive representable value maps to
-%% 1.0, and the most negative representable value maps to   -1.0. (Note that this mapping
-%% does not convert 0 precisely to 0.0). Floating-point values are mapped directly. 
-%%
-%%  Neither floating-point nor signed integer values are clamped to the range [0 1] before the
-%% current color is updated. However, color components are clamped to this range before they
-%% are interpolated or written into a color buffer. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glSecondaryColor.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glSecondaryColor.xml">external</a> documentation.
 -spec secondaryColor3b(Red, Green, Blue) -> 'ok' when Red :: integer(),Green :: integer(),Blue :: integer().
 secondaryColor3b(Red,Green,Blue) ->
   cast(5405, <<Red:?GLbyte,Green:?GLbyte,Blue:?GLbyte>>).
@@ -9881,23 +4041,7 @@ secondaryColor3usv({Red,Green,Blue}) ->  secondaryColor3us(Red,Green,Blue).
 %%  specifies the byte stride from one color to the next, allowing vertices and attributes
 %% to be packed into a single array or stored in separate arrays. 
 %%
-%%  If a non-zero named buffer object is bound to the `?GL_ARRAY_BUFFER' target  (see  {@link gl:bindBuffer/2} 
-%% ) while a secondary color array is specified,  `Pointer'  is treated as a byte offset
-%% into the buffer object's data store. Also, the buffer object binding (`?GL_ARRAY_BUFFER_BINDING'
-%% ) is saved as secondary color vertex array client-side state (`?GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING'
-%% ). 
-%%
-%%  When a secondary color array is specified,  `Size' ,  `Type' ,  `Stride' , and  `Pointer' 
-%%  are saved as client-side state, in addition to the current vertex array buffer object
-%% binding. 
-%%
-%%  To enable and disable the secondary color array, call  {@link gl:enableClientState/1}  and  {@link gl:enableClientState/1} 
-%%  with the argument `?GL_SECONDARY_COLOR_ARRAY'. If enabled, the secondary color array
-%% is used when  {@link gl:arrayElement/1} ,  {@link gl:drawArrays/3} ,  {@link gl:multiDrawArrays/3} ,
-%%  {@link gl:drawElements/4} , see `glMultiDrawElements', or  {@link gl:drawRangeElements/6} 
-%% is called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glSecondaryColorPointer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glSecondaryColorPointer.xml">external</a> documentation.
 -spec secondaryColorPointer(Size, Type, Stride, Pointer) -> 'ok' when Size :: integer(),Type :: enum(),Stride :: integer(),Pointer :: offset()|mem().
 secondaryColorPointer(Size,Type,Stride,Pointer) when  is_integer(Pointer) ->
   cast(5413, <<Size:?GLint,Type:?GLenum,Stride:?GLsizei,Pointer:?GLuint>>);
@@ -9912,38 +4056,7 @@ secondaryColorPointer(Size,Type,Stride,Pointer) ->
 %% subpixel accuracy. See  {@link gl:bitmap/7} ,  {@link gl:drawPixels/5} , and  {@link gl:copyPixels/5} 
 %% . 
 %%
-%% ``gl:windowPos2'' specifies the   x and   y coordinates, while   z is implicitly set
-%% to 0. ``gl:windowPos3'' specifies all three coordinates. The   w coordinate of the current
-%% raster position is always set to 1.0. 
-%%
-%% ``gl:windowPos'' directly updates the   x and   y coordinates of the current raster
-%% position with the values specified. That is, the values are neither transformed by the
-%% current modelview and projection matrices, nor by the viewport-to-window transform. The  
-%% z coordinate of the current raster position is updated in the following manner: 
-%%
-%%  z={n f(n+z×(f-n))  if  z&lt;= 0 if  z&gt;= 1(otherwise))
-%%
-%%  where   n is `?GL_DEPTH_RANGE''s near value, and   f is `?GL_DEPTH_RANGE''s
-%% far value. See  {@link gl:depthRange/2} . 
-%%
-%%  The specified coordinates are not clip-tested, causing the raster position to always
-%% be valid. 
-%%
-%%  The current raster position also includes some associated color data and texture coordinates.
-%% If lighting is enabled, then `?GL_CURRENT_RASTER_COLOR' (in RGBA mode) or `?GL_CURRENT_RASTER_INDEX'
-%%  (in color index mode) is set to the color produced by the lighting calculation (see  {@link gl:lightf/3} 
-%% ,  {@link gl:lightModelf/2} , and  {@link gl:shadeModel/1} ). If lighting is disabled, current
-%% color (in RGBA mode, state variable `?GL_CURRENT_COLOR') or color index (in color
-%% index mode, state variable `?GL_CURRENT_INDEX') is used to update the current raster
-%% color. `?GL_CURRENT_RASTER_SECONDARY_COLOR' (in RGBA mode) is likewise updated. 
-%%
-%%  Likewise, `?GL_CURRENT_RASTER_TEXTURE_COORDS' is updated as a function of `?GL_CURRENT_TEXTURE_COORDS'
-%% , based on the texture matrix and the texture generation functions (see  {@link gl:texGend/3} ).
-%% The `?GL_CURRENT_RASTER_DISTANCE' is set to the `?GL_CURRENT_FOG_COORD'. 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glWindowPos.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glWindowPos.xml">external</a> documentation.
 -spec windowPos2d(X, Y) -> 'ok' when X :: float(),Y :: float().
 windowPos2d(X,Y) ->
   cast(5415, <<X:?GLdouble,Y:?GLdouble>>).
@@ -10028,13 +4141,7 @@ windowPos3sv({X,Y,Z}) ->  windowPos3s(X,Y,Z).
 %% that the names form a contiguous set of integers; however, it is guaranteed that none
 %% of the returned names was in use immediately before the call to ``gl:genQueries''. 
 %%
-%%  Query object names returned by a call to ``gl:genQueries'' are not returned by subsequent
-%% calls, unless they are first deleted with  {@link gl:deleteQueries/1} .  
-%%
-%%  No query objects are associated with the returned query object names until they are first
-%% used by calling  {@link gl:beginQuery/2} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenQueries.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGenQueries.xhtml">external</a> documentation.
 -spec genQueries(N) -> [integer()] when N :: integer().
 genQueries(N) ->
   call(5423, <<N:?GLsizei>>).
@@ -10045,10 +4152,7 @@ genQueries(N) ->
 %% . After a query object is deleted, it has no contents, and its name is free for reuse
 %% (for example by  {@link gl:genQueries/1} ). 
 %%
-%% ``gl:deleteQueries'' silently ignores 0's and names that do not correspond to existing
-%% query objects. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteQueries.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteQueries.xhtml">external</a> documentation.
 -spec deleteQueries(Ids) -> 'ok' when Ids :: [integer()].
 deleteQueries(Ids) ->
   IdsLen = length(Ids),
@@ -10061,10 +4165,7 @@ deleteQueries(Ids) ->
 %% object. If  `Id'  is zero, or is a non-zero value that is not currently the name of
 %% a query object, or if an error occurs, ``gl:isQuery'' returns `?GL_FALSE'. 
 %%
-%%  A name returned by  {@link gl:genQueries/1} , but not yet associated with a query object
-%% by calling  {@link gl:beginQuery/2} , is not the name of a query object. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsQuery.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsQuery.xhtml">external</a> documentation.
 -spec isQuery(Id) -> 0|1 when Id :: integer().
 isQuery(Id) ->
   call(5425, <<Id:?GLuint>>).
@@ -10078,60 +4179,7 @@ isQuery(Id) ->
 %% , `?GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN', or `?GL_TIME_ELAPSED'. The behavior
 %% of the query object depends on its type and is as follows. 
 %%
-%%  If  `Target'  is `?GL_SAMPLES_PASSED',  `Id'  must be an unused name, or the
-%% name of an existing occlusion query object. When ``gl:beginQuery'' is executed, the
-%% query object's samples-passed counter is reset to 0. Subsequent rendering will increment
-%% the counter for every sample that passes the depth test. If the value of `?GL_SAMPLE_BUFFERS'
-%%  is 0, then the samples-passed count is incremented by 1 for each fragment. If the value
-%% of `?GL_SAMPLE_BUFFERS' is 1, then the samples-passed count is incremented by the
-%% number of samples whose coverage bit is set. However, implementations, at their discression
-%% may instead increase the samples-passed count by the value of `?GL_SAMPLES' if any
-%% sample in the fragment is covered. When ``gl:endQuery'' is executed, the samples-passed
-%% counter is assigned to the query object's result value. This value can be queried by calling
-%%  {@link gl:getQueryObjectiv/2}  with  `Pname' `?GL_QUERY_RESULT'. 
-%%
-%%  If  `Target'  is `?GL_ANY_SAMPLES_PASSED',  `Id'  must be an unused name,
-%% or the name of an existing boolean occlusion query object. When ``gl:beginQuery'' is
-%% executed, the query object's samples-passed flag is reset to `?GL_FALSE'. Subsequent
-%% rendering causes the flag to be set to `?GL_TRUE' if any sample passes the depth
-%% test. When ``gl:endQuery'' is executed, the samples-passed flag is assigned to the query
-%% object's result value. This value can be queried by calling  {@link gl:getQueryObjectiv/2} 
-%% with  `Pname' `?GL_QUERY_RESULT'. 
-%%
-%%  If  `Target'  is `?GL_PRIMITIVES_GENERATED',  `Id'  must be an unused name,
-%% or the name of an existing primitive query object previously bound to the `?GL_PRIMITIVES_GENERATED'
-%%  query binding. When ``gl:beginQuery'' is executed, the query object's primitives-generated
-%% counter is reset to 0. Subsequent rendering will increment the counter once for every
-%% vertex that is emitted from the geometry shader, or from the vertex shader if no geometry
-%% shader is present. When ``gl:endQuery'' is executed, the primitives-generated counter
-%% is assigned to the query object's result value. This value can be queried by calling  {@link gl:getQueryObjectiv/2} 
-%%  with  `Pname' `?GL_QUERY_RESULT'. 
-%%
-%%  If  `Target'  is `?GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN',  `Id'  must
-%% be an unused name, or the name of an existing primitive query object previously bound
-%% to the `?GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN' query binding. When ``gl:beginQuery''
-%%  is executed, the query object's primitives-written counter is reset to 0. Subsequent
-%% rendering will increment the counter once for every vertex that is written into the bound
-%% transform feedback buffer(s). If transform feedback mode is not activated between the
-%% call to ``gl:beginQuery'' and ``gl:endQuery'', the counter will not be incremented.
-%% When ``gl:endQuery'' is executed, the primitives-written counter is assigned to the
-%% query object's result value. This value can be queried by calling  {@link gl:getQueryObjectiv/2} 
-%%  with  `Pname' `?GL_QUERY_RESULT'. 
-%%
-%%  If  `Target'  is `?GL_TIME_ELAPSED',  `Id'  must be an unused name, or the
-%% name of an existing timer query object previously bound to the `?GL_TIME_ELAPSED'
-%% query binding. When ``gl:beginQuery'' is executed, the query object's time counter is
-%% reset to 0. When ``gl:endQuery'' is executed, the elapsed server time that has passed
-%% since the call to ``gl:beginQuery'' is written into the query object's time counter.
-%% This value can be queried by calling  {@link gl:getQueryObjectiv/2}  with  `Pname' `?GL_QUERY_RESULT'
-%% . 
-%%
-%%  Querying the `?GL_QUERY_RESULT' implicitly flushes the GL pipeline until the rendering
-%% delimited by the query object has completed and the result is available. `?GL_QUERY_RESULT_AVAILABLE'
-%%  can be queried to determine if the result is immediately available or if the rendering
-%% is not yet complete. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBeginQuery.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBeginQuery.xhtml">external</a> documentation.
 -spec beginQuery(Target, Id) -> 'ok' when Target :: enum(),Id :: integer().
 beginQuery(Target,Id) ->
   cast(5426, <<Target:?GLenum,Id:?GLuint>>).
@@ -10144,7 +4192,7 @@ endQuery(Target) ->
 
 %% @doc glGetQuery
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetQuery.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getQueryiv(Target, Pname) -> integer() when Target :: enum(),Pname :: enum().
 getQueryiv(Target,Pname) ->
   call(5428, <<Target:?GLenum,Pname:?GLenum>>).
@@ -10154,17 +4202,7 @@ getQueryiv(Target,Pname) ->
 %% ``gl:getQueryObject'' returns in  `Params'  a selected parameter of the query object
 %% specified by  `Id' . 
 %%
-%%  `Pname'  names a specific query object parameter.  `Pname'  can be as follows: 
-%%
-%% `?GL_QUERY_RESULT':  `Params'  returns the value of the query object's passed
-%% samples counter.  The initial value is 0. 
-%%
-%% `?GL_QUERY_RESULT_AVAILABLE':  `Params'  returns whether the passed samples counter
-%% is immediately available. If a delay would occur waiting for the query result, `?GL_FALSE'
-%%  is returned.  Otherwise, `?GL_TRUE' is returned, which also indicates that the results
-%% of all previous queries are available as well. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetQueryObject.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetQueryObject.xhtml">external</a> documentation.
 -spec getQueryObjectiv(Id, Pname) -> integer() when Id :: integer(),Pname :: enum().
 getQueryObjectiv(Id,Pname) ->
   call(5429, <<Id:?GLuint,Pname:?GLenum>>).
@@ -10183,77 +4221,7 @@ getQueryObjectuiv(Id,Pname) ->
 %% object with name  `Buffer'  exists, one is created with that name. When a buffer object
 %% is bound to a target, the previous binding for that target is automatically broken. 
 %%
-%%  Buffer object names are unsigned integers. The value zero is reserved, but there is no
-%% default buffer object for each buffer object target. Instead,  `Buffer'  set to zero
-%% effectively unbinds any buffer object previously bound, and restores client memory usage
-%% for that buffer object target (if supported for that target). Buffer object names and
-%% the corresponding buffer object contents are local to the shared object space of the current
-%% GL rendering context; two rendering contexts share buffer object names only if they explicitly
-%% enable sharing between contexts through the appropriate GL windows interfaces functions. 
-%%
-%%  {@link gl:genBuffers/1}  must be used to generate a set of unused buffer object names. 
-%%
-%%  The state of a buffer object immediately after it is first bound is an unmapped zero-sized
-%% memory buffer with `?GL_READ_WRITE' access and `?GL_STATIC_DRAW' usage. 
-%%
-%%  While a non-zero buffer object name is bound, GL operations on the target to which it
-%% is bound affect the bound buffer object, and queries of the target to which it is bound
-%% return state  from the bound buffer object. While buffer object name zero is bound, as
-%% in the initial state, attempts to modify or query state on the target to which it is bound
-%% generates an  `?GL_INVALID_OPERATION' error. 
-%%
-%%  When a non-zero buffer object is bound to the `?GL_ARRAY_BUFFER' target,  the vertex
-%% array pointer parameter is interpreted as an offset within the buffer object measured
-%% in basic machine units. 
-%%
-%%  When a non-zero buffer object is bound to the `?GL_DRAW_INDIRECT_BUFFER' target,
-%% parameters for draws issued through  {@link gl:drawArraysIndirect/2}  and  {@link gl:drawElementsIndirect/3} 
-%%  are sourced from that buffer object. 
-%%
-%%  While a non-zero buffer object is bound to the `?GL_ELEMENT_ARRAY_BUFFER' target,
-%%  the indices parameter of  {@link gl:drawElements/4} ,   {@link gl:drawElementsInstanced/5} ,  {@link gl:drawElementsBaseVertex/5} 
-%% ,   {@link gl:drawRangeElements/6} ,   {@link gl:drawRangeElementsBaseVertex/7} , see `glMultiDrawElements'
-%% , or  see `glMultiDrawElementsBaseVertex' is interpreted as an  offset within the
-%% buffer object measured in basic machine units. 
-%%
-%%  While a non-zero buffer object is bound to the `?GL_PIXEL_PACK_BUFFER' target, 
-%% the following commands are affected:  {@link gl:getCompressedTexImage/3} ,   {@link gl:getTexImage/5} 
-%% , and   {@link gl:readPixels/7} . The pointer parameter is interpreted as an offset within
-%% the buffer object measured in basic machine units. 
-%%
-%%  While a non-zero buffer object is bound to the `?GL_PIXEL_UNPACK_BUFFER' target,
-%%  the following commands are affected:   {@link gl:compressedTexImage1D/7} ,  {@link gl:compressedTexImage2D/8} 
-%% ,  {@link gl:compressedTexImage3D/9} ,  {@link gl:compressedTexSubImage1D/7} ,  {@link gl:compressedTexSubImage2D/9} 
-%% ,  {@link gl:compressedTexSubImage3D/11} ,  {@link gl:texImage1D/8} ,  {@link gl:texImage2D/9} ,  {@link gl:texImage3D/10} 
-%% ,  {@link gl:texSubImage1D/7} ,  {@link gl:texSubImage1D/7} , and   {@link gl:texSubImage1D/7} .
-%% The pointer parameter is  interpreted as an offset within the buffer object measured in
-%% basic machine units. 
-%%
-%%  The buffer targets `?GL_COPY_READ_BUFFER' and `?GL_COPY_WRITE_BUFFER' are provided
-%% to allow  {@link gl:copyBufferSubData/5}  to be used without disturbing the state of other
-%% bindings. However,  {@link gl:copyBufferSubData/5}  may be used with any pair of buffer binding
-%% points. 
-%%
-%%  The `?GL_TRANSFORM_FEEDBACK_BUFFER' buffer binding point may be passed to ``gl:bindBuffer''
-%% , but will not directly affect transform feedback state. Instead, the indexed `?GL_TRANSFORM_FEEDBACK_BUFFER'
-%%  bindings must be used through a call to  {@link gl:bindBufferBase/3}  or  {@link gl:bindBufferRange/5} 
-%% . This will affect the generic `?GL_TRANSFORM_FEEDABCK_BUFFER' binding. 
-%%
-%%  Likewise, the `?GL_UNIFORM_BUFFER' and `?GL_ATOMIC_COUNTER_BUFFER' buffer binding
-%% points may be used, but do not directly affect uniform buffer or atomic counter buffer
-%% state, respectively.  {@link gl:bindBufferBase/3}  or  {@link gl:bindBufferRange/5}  must be
-%% used to bind a buffer to an indexed uniform buffer or atomic counter buffer binding point.
-%% 
-%%
-%%  A buffer object binding created with ``gl:bindBuffer'' remains active until a different
-%% buffer object name is bound to the same target, or until the bound buffer object is deleted
-%% with  {@link gl:deleteBuffers/1} . 
-%%
-%%  Once created, a named buffer object may be re-bound to any target as often as needed.
-%% However, the GL implementation may make choices about how to optimize the storage of a
-%% buffer object based on its initial binding target. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindBuffer.xhtml">external</a> documentation.
 -spec bindBuffer(Target, Buffer) -> 'ok' when Target :: enum(),Buffer :: integer().
 bindBuffer(Target,Buffer) ->
   cast(5431, <<Target:?GLenum,Buffer:?GLuint>>).
@@ -10265,10 +4233,7 @@ bindBuffer(Target,Buffer) ->
 %% free for reuse (for example by  {@link gl:genBuffers/1} ). If a buffer object that is currently
 %% bound is deleted, the binding reverts to 0 (the absence of any buffer object). 
 %%
-%% ``gl:deleteBuffers'' silently ignores 0's and names that do not correspond to existing
-%% buffer objects. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteBuffers.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteBuffers.xhtml">external</a> documentation.
 -spec deleteBuffers(Buffers) -> 'ok' when Buffers :: [integer()].
 deleteBuffers(Buffers) ->
   BuffersLen = length(Buffers),
@@ -10282,13 +4247,7 @@ deleteBuffers(Buffers) ->
 %% that none of the returned names was in use immediately before the call to ``gl:genBuffers''
 %% . 
 %%
-%%  Buffer object names returned by a call to ``gl:genBuffers'' are not returned by subsequent
-%% calls, unless they are first deleted with  {@link gl:deleteBuffers/1} . 
-%%
-%%  No buffer objects are associated with the returned buffer object names until they are
-%% first bound by calling  {@link gl:bindBuffer/2} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGenBuffers.xhtml">external</a> documentation.
 -spec genBuffers(N) -> [integer()] when N :: integer().
 genBuffers(N) ->
   call(5433, <<N:?GLsizei>>).
@@ -10300,10 +4259,7 @@ genBuffers(N) ->
 %% the name of a buffer object, or if an error occurs, ``gl:isBuffer'' returns `?GL_FALSE'
 %% . 
 %%
-%%  A name returned by  {@link gl:genBuffers/1} , but not yet associated with a buffer object
-%% by calling  {@link gl:bindBuffer/2} , is not the name of a buffer object. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsBuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsBuffer.xhtml">external</a> documentation.
 -spec isBuffer(Buffer) -> 0|1 when Buffer :: integer().
 isBuffer(Buffer) ->
   call(5434, <<Buffer:?GLuint>>).
@@ -10317,31 +4273,7 @@ isBuffer(Buffer) ->
 %% is not mapped, it has a `?NULL' mapped pointer, and its mapped access  is `?GL_READ_WRITE'
 %% . 
 %%
-%%  `Usage'  is a hint to the GL implementation as to how a buffer object's data store
-%% will be  accessed. This enables the GL implementation to make more intelligent decisions
-%% that may significantly  impact buffer object performance. It does not, however, constrain
-%% the actual usage of the data store.  `Usage'  can be broken down into two parts: first,
-%% the frequency of access (modification  and usage), and second, the nature of that access.
-%% The frequency of access may be one of these: 
-%%
-%% STREAM:  The data store contents will be modified once and used at most a few times. 
-%%
-%% STATIC:  The data store contents will be modified once and used many times. 
-%%
-%% DYNAMIC:  The data store contents will be modified repeatedly and used many times. 
-%%
-%%  The nature of access may be one of these: 
-%%
-%% DRAW:  The data store contents are modified by the application, and used as the source
-%% for GL drawing and image specification commands. 
-%%
-%% READ:  The data store contents are modified by reading data from the GL, and used to return
-%% that data  when queried by the application. 
-%%
-%% COPY:  The data store contents are modified by reading data from the GL, and used as the
-%% source for GL drawing and image specification commands. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBufferData.xhtml">external</a> documentation.
 -spec bufferData(Target, Size, Data, Usage) -> 'ok' when Target :: enum(),Size :: integer(),Data :: offset()|mem(),Usage :: enum().
 bufferData(Target,Size,Data,Usage) when  is_integer(Data) ->
   cast(5435, <<Target:?GLenum,0:32,Size:?GLsizeiptr,Data:?GLuint,Usage:?GLenum>>);
@@ -10357,7 +4289,7 @@ bufferData(Target,Size,Data,Usage) ->
 %% is thrown if  `Offset'  and  `Size'  together define a range beyond the bounds of
 %% the buffer object's data store. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBufferSubData.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBufferSubData.xhtml">external</a> documentation.
 -spec bufferSubData(Target, Offset, Size, Data) -> 'ok' when Target :: enum(),Offset :: integer(),Size :: integer(),Data :: offset()|mem().
 bufferSubData(Target,Offset,Size,Data) when  is_integer(Data) ->
   cast(5437, <<Target:?GLenum,0:32,Offset:?GLintptr,Size:?GLsizeiptr,Data:?GLuint>>);
@@ -10373,7 +4305,7 @@ bufferSubData(Target,Offset,Size,Data) ->
 %% is thrown if the buffer object is currently mapped, or if  `Offset'  and  `Size' 
 %% together define a range beyond the bounds  of the buffer object's data store. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetBufferSubData.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetBufferSubData.xhtml">external</a> documentation.
 -spec getBufferSubData(Target, Offset, Size, Data) -> 'ok' when Target :: enum(),Offset :: integer(),Size :: integer(),Data :: mem().
 getBufferSubData(Target,Offset,Size,Data) ->
   send_bin(Data),
@@ -10384,21 +4316,7 @@ getBufferSubData(Target,Offset,Size,Data) ->
 %% ``gl:getBufferParameteriv'' returns in  `Data'  a selected parameter of the buffer
 %% object specified by  `Target' . 
 %%
-%%  `Value'  names a specific buffer object parameter, as follows: 
-%%
-%% `?GL_BUFFER_ACCESS':  `Params'  returns the access policy set while mapping the
-%% buffer object.  The initial value is `?GL_READ_WRITE'. 
-%%
-%% `?GL_BUFFER_MAPPED':  `Params'  returns a flag indicating whether the buffer object
-%% is currently  mapped. The initial value is `?GL_FALSE'. 
-%%
-%% `?GL_BUFFER_SIZE':  `Params'  returns the size of the buffer object, measured
-%% in bytes.  The initial value is 0. 
-%%
-%% `?GL_BUFFER_USAGE':  `Params'  returns the buffer object's usage pattern. The
-%% initial value is `?GL_STATIC_DRAW'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetBufferParameteriv.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glGetBufferParameteriv.xml">external</a> documentation.
 -spec getBufferParameteriv(Target, Pname) -> integer() when Target :: enum(),Pname :: enum().
 getBufferParameteriv(Target,Pname) ->
   call(5440, <<Target:?GLenum,Pname:?GLenum>>).
@@ -10412,35 +4330,7 @@ getBufferParameteriv(Target,Pname) ->
 %% draw buffer whereas ``gl:blendEquationSeparate'' sets the blend equations for all draw
 %% buffers. 
 %%
-%%  The blend equations use the source and destination blend factors specified by either  {@link gl:blendFunc/2} 
-%%  or  {@link gl:blendFuncSeparate/4} . See  {@link gl:blendFunc/2}  or  {@link gl:blendFuncSeparate/4} 
-%%  for a description of the various blend factors. 
-%%
-%%  In the equations that follow, source and destination color components are referred to
-%% as (R s G s B s A s) and (R d G d B d A d), respectively. The result color is referred to as (R r G r B r A r). The source and destination
-%% blend factors are denoted (s R s G s B s A) and (d R d G d B d A), respectively. For these equations all color components
-%% are understood to have values in the range  [0 1].  <table><tbody><tr><td>` Mode '</td><td>
-%% ` RGB Components '</td><td>` Alpha Component '</td></tr></tbody><tbody><tr><td>`?GL_FUNC_ADD'
-%% </td><td> Rr=R s  s R+R d  d R Gr=G s  s G+G d  d G Br=B s  s B+B d  d B</td><td> Ar=A s 
-%% s A+A d  d A</td></tr><tr><td>`?GL_FUNC_SUBTRACT'</td><td> Rr=R s  s R-R d  d R Gr=G
-%% s  s G-G d  d G Br=B s  s B-B d  d B</td><td> Ar=A s  s A-A d  d A</td></tr><tr><td>`?GL_FUNC_REVERSE_SUBTRACT'
-%% </td><td> Rr=R d  d R-R s  s R Gr=G d  d G-G s  s G Br=B d  d B-B s  s B</td><td> Ar=A d 
-%% d A-A s  s A</td></tr><tr><td>`?GL_MIN'</td><td> Rr=min(R s R d) Gr=min(G s G d) Br=min(B s B d)</td><td> Ar=min
-%% (A s A d)</td></tr><tr><td>`?GL_MAX'</td><td> Rr=max(R s R d) Gr=max(G s G d) Br=max(B s B d)</td><td> Ar=max(A s A d)</td></tr></tbody>
-%% </table>
-%%
-%%  The results of these equations are clamped to the range  [0 1]. 
-%%
-%%  The `?GL_MIN' and `?GL_MAX' equations are useful for applications that analyze
-%% image data (image thresholding against a constant color, for example). The `?GL_FUNC_ADD'
-%%  equation is useful for antialiasing and transparency, among other things. 
-%%
-%%  Initially, both the RGB blend equation and the alpha blend equation are set to `?GL_FUNC_ADD'
-%% . 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBlendEquationSeparate.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBlendEquationSeparate.xhtml">external</a> documentation.
 -spec blendEquationSeparate(ModeRGB, ModeAlpha) -> 'ok' when ModeRGB :: enum(),ModeAlpha :: enum().
 blendEquationSeparate(ModeRGB,ModeAlpha) ->
   cast(5441, <<ModeRGB:?GLenum,ModeAlpha:?GLenum>>).
@@ -10455,32 +4345,7 @@ blendEquationSeparate(ModeRGB,ModeAlpha) ->
 %% or equal to  `N'  is implicitly set to `?GL_NONE' and any data written to such
 %% an output is discarded.
 %%
-%% The symbolic constants contained in  `Bufs'  may be any of the following:
-%%
-%% `?GL_NONE': The fragment shader output value is not written into any color buffer.
-%%
-%% `?GL_FRONT_LEFT': The fragment shader output value is written into the front left
-%% color buffer.
-%%
-%% `?GL_FRONT_RIGHT': The fragment shader output value is written into the front right
-%% color buffer.
-%%
-%% `?GL_BACK_LEFT': The fragment shader output value is written into the back left color
-%% buffer.
-%%
-%% `?GL_BACK_RIGHT': The fragment shader output value is written into the back right
-%% color buffer.
-%%
-%% `?GL_COLOR_ATTACHMENT'`n': The fragment shader output value is written into
-%% the `n'th color attachment of the current framebuffer. `n' may range from 0
-%% to the value of `?GL_MAX_COLOR_ATTACHMENTS'.
-%%
-%% Except for `?GL_NONE', the preceding symbolic constants may not appear more than
-%% once in  `Bufs' . The maximum number of draw buffers supported is implementation dependent
-%% and can be queried by calling  {@link gl:getBooleanv/1}  with the argument `?GL_MAX_DRAW_BUFFERS'
-%% .
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawBuffers.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawBuffers.xhtml">external</a> documentation.
 -spec drawBuffers(Bufs) -> 'ok' when Bufs :: [enum()].
 drawBuffers(Bufs) ->
   BufsLen = length(Bufs),
@@ -10495,55 +4360,7 @@ drawBuffers(Bufs) ->
 %% used in multipass rendering algorithms to achieve special effects, such as decals, outlining,
 %% and constructive solid geometry rendering. 
 %%
-%%  The stencil test conditionally eliminates a pixel based on the outcome of a comparison
-%% between the value in the stencil buffer and a reference value. To enable and disable the
-%% test, call  {@link gl:enable/1}  and  {@link gl:enable/1}  with argument `?GL_STENCIL_TEST'
-%% ; to control it, call   {@link gl:stencilFunc/3}  or   {@link gl:stencilFuncSeparate/4} . 
-%%
-%%  There can be two separate sets of  `Sfail' ,  `Dpfail' , and   `Dppass'  parameters;
-%% one affects back-facing polygons, and the other affects front-facing polygons as well
-%% as other non-polygon primitives.   {@link gl:stencilOp/3}  sets both front and back stencil
-%% state to the same values, as if   {@link gl:stencilOpSeparate/4}  were called with  `Face' 
-%%  set to `?GL_FRONT_AND_BACK'. 
-%%
-%% ``gl:stencilOpSeparate'' takes three arguments that indicate what happens to the stored
-%% stencil value while stenciling is enabled. If the stencil test fails, no change is made
-%% to the pixel's color or depth buffers, and  `Sfail'  specifies what happens to the
-%% stencil buffer contents. The following eight actions are possible. 
-%%
-%% `?GL_KEEP':  Keeps the current value. 
-%%
-%% `?GL_ZERO':  Sets the stencil buffer value to 0. 
-%%
-%% `?GL_REPLACE':  Sets the stencil buffer value to `ref', as specified by  {@link gl:stencilFunc/3} 
-%% . 
-%%
-%% `?GL_INCR':  Increments the current stencil buffer value. Clamps to the maximum representable
-%% unsigned value. 
-%%
-%% `?GL_INCR_WRAP':  Increments the current stencil buffer value. Wraps stencil buffer
-%% value to zero when incrementing the maximum representable unsigned value. 
-%%
-%% `?GL_DECR':  Decrements the current stencil buffer value. Clamps to 0. 
-%%
-%% `?GL_DECR_WRAP':  Decrements the current stencil buffer value. Wraps stencil buffer
-%% value to the maximum representable unsigned value when decrementing a stencil buffer value
-%% of zero. 
-%%
-%% `?GL_INVERT':  Bitwise inverts the current stencil buffer value. 
-%%
-%%  Stencil buffer values are treated as unsigned integers. When incremented and decremented,
-%% values are clamped to 0 and   2 n-1, where   n is the value returned by querying `?GL_STENCIL_BITS'
-%% . 
-%%
-%%  The other two arguments to ``gl:stencilOpSeparate'' specify stencil buffer actions
-%% that depend on whether subsequent depth buffer tests succeed ( `Dppass' ) or fail ( `Dpfail' 
-%% ) (see  {@link gl:depthFunc/1} ). The actions are specified using the same eight symbolic
-%% constants as  `Sfail' . Note that  `Dpfail'  is ignored when there is no depth buffer,
-%% or when the depth buffer is not enabled. In these cases,  `Sfail'  and  `Dppass' 
-%% specify stencil action when the stencil test fails and passes, respectively. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glStencilOpSeparate.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glStencilOpSeparate.xhtml">external</a> documentation.
 -spec stencilOpSeparate(Face, Sfail, Dpfail, Dppass) -> 'ok' when Face :: enum(),Sfail :: enum(),Dpfail :: enum(),Dppass :: enum().
 stencilOpSeparate(Face,Sfail,Dpfail,Dppass) ->
   cast(5443, <<Face:?GLenum,Sfail:?GLenum,Dpfail:?GLenum,Dppass:?GLenum>>).
@@ -10556,57 +4373,7 @@ stencilOpSeparate(Face,Sfail,Dpfail,Dppass) ->
 %% used in multipass rendering algorithms to achieve special effects, such as decals, outlining,
 %% and constructive solid geometry rendering. 
 %%
-%%  The stencil test conditionally eliminates a pixel based on the outcome of a comparison
-%% between the reference value and the value in the stencil buffer. To enable and disable
-%% the test, call  {@link gl:enable/1}  and  {@link gl:enable/1}  with argument `?GL_STENCIL_TEST'
-%% . To specify actions based on the outcome of the stencil test, call  {@link gl:stencilOp/3} 
-%% or   {@link gl:stencilOpSeparate/4} . 
-%%
-%%  There can be two separate sets of  `Func' ,  `Ref' , and   `Mask'  parameters;
-%% one affects back-facing polygons, and the other affects front-facing polygons as well
-%% as other non-polygon primitives.   {@link gl:stencilFunc/3}  sets both front and back stencil
-%% state to the same values, as if   {@link gl:stencilFuncSeparate/4}  were called with  `Face' 
-%%  set to `?GL_FRONT_AND_BACK'. 
-%%
-%%  `Func'  is a symbolic constant that determines the stencil comparison function. It
-%% accepts one of eight values, shown in the following list.  `Ref'  is an integer reference
-%% value that is used in the stencil comparison. It is clamped to the range  [0 2 n-1], where   n
-%% is the number of bitplanes in the stencil buffer.  `Mask'  is bitwise ANDed with both
-%% the reference value and the stored stencil value, with the ANDed values participating
-%% in the comparison. 
-%%
-%%  If `stencil' represents the value stored in the corresponding stencil buffer location,
-%% the following list shows the effect of each comparison function that can be specified by  `Func' 
-%% . Only if the comparison succeeds is the pixel passed through to the next stage in the
-%% rasterization process (see  {@link gl:stencilOp/3} ). All tests treat `stencil' values
-%% as unsigned integers in the range [0 2 n-1], where   n is the number of bitplanes in the stencil
-%% buffer. 
-%%
-%%  The following values are accepted by  `Func' : 
-%%
-%% `?GL_NEVER':  Always fails. 
-%%
-%% `?GL_LESS':  Passes if (  `Ref'  &amp;  `Mask'  ) &lt; ( `stencil' &amp;  `Mask' 
-%%  ). 
-%%
-%% `?GL_LEQUAL':  Passes if (  `Ref'  &amp;  `Mask'  ) &lt;= ( `stencil'
-%% &amp;  `Mask'  ). 
-%%
-%% `?GL_GREATER':  Passes if (  `Ref'  &amp;  `Mask'  ) &gt; ( `stencil'
-%% &amp;  `Mask'  ). 
-%%
-%% `?GL_GEQUAL':  Passes if (  `Ref'  &amp;  `Mask'  ) &gt;= ( `stencil'
-%% &amp;  `Mask'  ). 
-%%
-%% `?GL_EQUAL':  Passes if (  `Ref'  &amp;  `Mask'  ) = ( `stencil' &amp;  `Mask' 
-%%  ). 
-%%
-%% `?GL_NOTEQUAL':  Passes if (  `Ref'  &amp;  `Mask'  ) != ( `stencil' &amp;
-%%  `Mask'  ). 
-%%
-%% `?GL_ALWAYS':  Always passes. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glStencilFuncSeparate.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glStencilFuncSeparate.xhtml">external</a> documentation.
 -spec stencilFuncSeparate(Face, Func, Ref, Mask) -> 'ok' when Face :: enum(),Func :: enum(),Ref :: integer(),Mask :: integer().
 stencilFuncSeparate(Face,Func,Ref,Mask) ->
   cast(5444, <<Face:?GLenum,Func:?GLenum,Ref:?GLint,Mask:?GLuint>>).
@@ -10619,12 +4386,7 @@ stencilFuncSeparate(Face,Func,Ref,Mask) ->
 %% to the corresponding bit in the stencil buffer. Where a 0 appears, the corresponding bit
 %% is write-protected. Initially, all bits are enabled for writing. 
 %%
-%%  There can be two separate  `Mask'  writemasks; one affects back-facing polygons, and
-%% the other affects front-facing polygons as well as other non-polygon primitives.   {@link gl:stencilMask/1} 
-%%  sets both front and back stencil writemasks to the same values, as if  {@link gl:stencilMaskSeparate/2} 
-%%  were called with  `Face'  set to `?GL_FRONT_AND_BACK'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glStencilMaskSeparate.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glStencilMaskSeparate.xhtml">external</a> documentation.
 -spec stencilMaskSeparate(Face, Mask) -> 'ok' when Face :: enum(),Mask :: integer().
 stencilMaskSeparate(Face,Mask) ->
   cast(5445, <<Face:?GLenum,Mask:?GLuint>>).
@@ -10638,17 +4400,7 @@ stencilMaskSeparate(Face,Mask) ->
 %% the  program object specified by  `Program' . This  indicates that  `Shader'  will
 %% be included in  link operations that will be performed on   `Program' .
 %%
-%% All operations that can be performed on a shader object  are valid whether or not the
-%% shader object is attached to a  program object. It is permissible to attach a shader object
-%% to a  program object before source code has been loaded into the  shader object or before
-%% the shader object has been compiled. It  is permissible to attach multiple shader objects
-%% of the same  type because each may contain a portion of the complete shader.  It is also
-%% permissible to attach a shader object to more than  one program object. If a shader object
-%% is deleted while it is  attached to a program object, it will be flagged for deletion,
-%%  and deletion will not occur until   {@link gl:detachShader/2}   is called to detach it from
-%% all program objects to which it is  attached.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glAttachShader.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glAttachShader.xhtml">external</a> documentation.
 -spec attachShader(Program, Shader) -> 'ok' when Program :: integer(),Shader :: integer().
 attachShader(Program,Shader) ->
   cast(5446, <<Program:?GLuint,Shader:?GLuint>>).
@@ -10663,29 +4415,7 @@ attachShader(Program,Shader) ->
 %% attribute  `Index'  will modify the value of the user-defined attribute variable specified
 %% by  `Name' .
 %%
-%% If  `Name'  refers to a matrix attribute variable,  `Index'  refers to the first
-%% column of the matrix. Other matrix columns are then automatically bound to locations  `Index+1' 
-%%  for a matrix of type `mat2';  `Index+1'  and  `Index+2'  for a matrix of type
-%% `mat3'; and  `Index+1' ,  `Index+2' , and  `Index+3'  for a matrix of type `mat4'
-%% .
-%%
-%% This command makes it possible for vertex shaders to use descriptive names for attribute
-%% variables rather than generic variables that are numbered from 0 to `?GL_MAX_VERTEX_ATTRIBS'
-%%  -1. The values sent to each generic attribute index are part of current state. If a different
-%% program object is made current by calling  {@link gl:useProgram/1} , the generic vertex attributes
-%% are tracked in such a way that the same values will be observed by attributes in the new
-%% program object that are also bound to  `Index' .
-%%
-%% Attribute variable name-to-generic attribute index bindings for a program object can be
-%% explicitly assigned at any time by calling ``gl:bindAttribLocation''. Attribute bindings
-%% do not go into effect until  {@link gl:linkProgram/1}  is called. After a program object
-%% has been linked successfully, the index values for generic attributes remain fixed (and
-%% their values can be queried) until the next link command occurs.
-%%
-%% Any attribute binding that occurs after the program object has been linked will not take
-%% effect until the next time the program object is linked.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindAttribLocation.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindAttribLocation.xhtml">external</a> documentation.
 -spec bindAttribLocation(Program, Index, Name) -> 'ok' when Program :: integer(),Index :: integer(),Name :: string().
 bindAttribLocation(Program,Index,Name) ->
   NameLen = length(Name),
@@ -10696,17 +4426,7 @@ bindAttribLocation(Program,Index,Name) ->
 %% ``gl:compileShader'' compiles the source code strings that have been stored in the shader
 %% object specified by  `Shader' .
 %%
-%% The compilation status will be stored as part of the shader object's state. This value
-%% will be set to `?GL_TRUE' if the shader was compiled without errors and is ready
-%% for use, and `?GL_FALSE' otherwise. It can be queried by calling  {@link gl:getShaderiv/2} 
-%%  with arguments  `Shader'  and `?GL_COMPILE_STATUS'.
-%%
-%% Compilation of a shader can fail for a number of reasons as specified by the OpenGL Shading
-%% Language Specification. Whether or not the compilation was successful, information about
-%% the compilation can be obtained from the shader object's information log by calling  {@link gl:getShaderInfoLog/2} 
-%% .
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCompileShader.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCompileShader.xhtml">external</a> documentation.
 -spec compileShader(Shader) -> 'ok' when Shader :: integer().
 compileShader(Shader) ->
   cast(5448, <<Shader:?GLuint>>).
@@ -10721,15 +4441,7 @@ compileShader(Shader) ->
 %% between a vertex shader and a  fragment shader). When no longer needed as part of a program
 %%  object, shader objects can be detached.
 %%
-%% One or more executables are created in a program object by  successfully attaching shader
-%% objects to it with   {@link gl:attachShader/2} ,  successfully compiling the shader objects
-%% with   {@link gl:compileShader/1} ,  and successfully linking the program object with   {@link gl:linkProgram/1} 
-%% .  These executables are made part of current state when   {@link gl:useProgram/1}   is called.
-%% Program objects can be deleted by calling   {@link gl:deleteProgram/1} .  The memory associated
-%% with the program object will be deleted  when it is no longer part of current rendering
-%% state for any  context.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCreateProgram.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCreateProgram.xhtml">external</a> documentation.
 -spec createProgram() -> integer().
 createProgram() ->
   call(5449, <<>>).
@@ -10748,11 +4460,7 @@ createProgram() ->
 %% programmable geometry processor. A shader of  type `?GL_FRAGMENT_SHADER' is a shader
 %% that is  intended to run on the programmable fragment processor.
 %%
-%% When created, a shader object's  `?GL_SHADER_TYPE' parameter is set to either  `?GL_VERTEX_SHADER'
-%% , `?GL_TESS_CONTROL_SHADER',  `?GL_TESS_EVALUATION_SHADER', `?GL_GEOMETRY_SHADER'
-%%   or `?GL_FRAGMENT_SHADER', depending on the value  of  `ShaderType' .
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCreateShader.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCreateShader.xhtml">external</a> documentation.
 -spec createShader(Type) -> integer() when Type :: enum().
 createShader(Type) ->
   call(5450, <<Type:?GLenum>>).
@@ -10763,17 +4471,7 @@ createShader(Type) ->
 %% object specified by  `Program.'  This command effectively undoes the effects of a call
 %% to  {@link gl:createProgram/0} .
 %%
-%% If a program object is in use as part of current rendering state, it will be flagged for
-%% deletion, but it will not be deleted until it is no longer part of current state for any
-%% rendering context. If a program object to be deleted has shader objects attached to it,
-%% those shader objects will be automatically detached but not deleted unless they have already
-%% been flagged for deletion by a previous call to  {@link gl:deleteShader/1} . A value of 0
-%% for  `Program'  will be silently ignored.
-%%
-%% To determine whether a program object has been flagged for deletion, call  {@link gl:getProgramiv/2} 
-%%  with arguments  `Program'  and `?GL_DELETE_STATUS'.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteProgram.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteProgram.xhtml">external</a> documentation.
 -spec deleteProgram(Program) -> 'ok' when Program :: integer().
 deleteProgram(Program) ->
   cast(5451, <<Program:?GLuint>>).
@@ -10784,15 +4482,7 @@ deleteProgram(Program) ->
 %% object specified by  `Shader' . This command effectively undoes the effects of a call
 %% to  {@link gl:createShader/1} .
 %%
-%% If a shader object to be deleted is attached to a program object, it will be flagged for
-%% deletion, but it will not be deleted until it is no longer attached to any program object,
-%% for any rendering context (i.e., it must be detached from wherever it was attached before
-%% it will be deleted). A value of 0 for  `Shader'  will be silently ignored.
-%%
-%% To determine whether an object has been flagged for deletion, call  {@link gl:getShaderiv/2} 
-%% with arguments  `Shader'  and `?GL_DELETE_STATUS'.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteShader.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteShader.xhtml">external</a> documentation.
 -spec deleteShader(Shader) -> 'ok' when Shader :: integer().
 deleteShader(Shader) ->
   cast(5452, <<Shader:?GLuint>>).
@@ -10803,11 +4493,7 @@ deleteShader(Shader) ->
 %% object specified by  `Program' . This command can be used to undo the effect of the
 %% command  {@link gl:attachShader/2} .
 %%
-%% If  `Shader'  has already been flagged for deletion by a call to  {@link gl:deleteShader/1} 
-%%  and it is not attached to any other program object, it will be deleted after it has been
-%% detached.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDetachShader.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDetachShader.xhtml">external</a> documentation.
 -spec detachShader(Program, Shader) -> 'ok' when Program :: integer(),Shader :: integer().
 detachShader(Program,Shader) ->
   cast(5453, <<Program:?GLuint,Shader:?GLuint>>).
@@ -10822,7 +4508,7 @@ detachShader(Program,Shader) ->
 %% such as  {@link gl:drawArrays/3} ,  {@link gl:drawElements/4} ,  {@link gl:drawRangeElements/6} , see `glMultiDrawElements'
 %% , or  {@link gl:multiDrawArrays/3} .
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glEnableVertexAttribArray.xhtml">external</a> documentation.
 -spec disableVertexAttribArray(Index) -> 'ok' when Index :: integer().
 disableVertexAttribArray(Index) ->
   cast(5454, <<Index:?GLuint>>).
@@ -10841,52 +4527,7 @@ enableVertexAttribArray(Index) ->
 %% of 0 for  `Index'  selects the first active attribute variable. Permissible values
 %% for  `Index'  range from 0 to the number of active attribute variables minus 1.
 %%
-%% A vertex shader may use either built-in attribute variables, user-defined attribute variables,
-%% or both. Built-in attribute variables have a prefix of "gl_" and reference conventional
-%% OpenGL vertex attribtes (e.g.,  `Gl_Vertex' ,  `Gl_Normal' , etc., see the OpenGL
-%% Shading Language specification for a complete list.) User-defined attribute variables
-%% have arbitrary names and obtain their values through numbered generic vertex attributes.
-%% An attribute variable (either built-in or user-defined) is considered active if it is
-%% determined during the link operation that it may be accessed during program execution.
-%% Therefore,  `Program'  should have previously been the target of a call to  {@link gl:linkProgram/1} 
-%% , but it is not necessary for it to have been linked successfully.
-%%
-%% The size of the character buffer required to store the longest attribute variable name
-%% in  `Program'  can be obtained by calling  {@link gl:getProgramiv/2}  with the value `?GL_ACTIVE_ATTRIBUTE_MAX_LENGTH'
-%% . This value should be used to allocate a buffer of sufficient size to store the returned
-%% attribute name. The size of this character buffer is passed in  `BufSize' , and a pointer
-%% to this character buffer is passed in  `Name' .
-%%
-%% ``gl:getActiveAttrib'' returns the name of the attribute variable indicated by  `Index' 
-%% , storing it in the character buffer specified by  `Name' . The string returned will
-%% be null terminated. The actual number of characters written into this buffer is returned
-%% in  `Length' , and this count does not include the null termination character. If the
-%% length of the returned string is not required, a value of `?NULL' can be passed in
-%% the  `Length'  argument.
-%%
-%% The  `Type'  argument specifies a pointer to a variable into which the attribute variable's
-%% data type will be written. The symbolic constants `?GL_FLOAT', `?GL_FLOAT_VEC2',
-%% `?GL_FLOAT_VEC3', `?GL_FLOAT_VEC4', `?GL_FLOAT_MAT2', `?GL_FLOAT_MAT3',
-%% `?GL_FLOAT_MAT4', `?GL_FLOAT_MAT2x3', `?GL_FLOAT_MAT2x4', `?GL_FLOAT_MAT3x2'
-%% , `?GL_FLOAT_MAT3x4', `?GL_FLOAT_MAT4x2', `?GL_FLOAT_MAT4x3', `?GL_INT'
-%% , `?GL_INT_VEC2', `?GL_INT_VEC3', `?GL_INT_VEC4', `?GL_UNSIGNED_INT_VEC'
-%% , `?GL_UNSIGNED_INT_VEC2', `?GL_UNSIGNED_INT_VEC3', `?GL_UNSIGNED_INT_VEC4',
-%% `?DOUBLE', `?DOUBLE_VEC2', `?DOUBLE_VEC3', `?DOUBLE_VEC4', `?DOUBLE_MAT2'
-%% , `?DOUBLE_MAT3', `?DOUBLE_MAT4', `?DOUBLE_MAT2x3', `?DOUBLE_MAT2x4',
-%% `?DOUBLE_MAT3x2', `?DOUBLE_MAT3x4', `?DOUBLE_MAT4x2', or `?DOUBLE_MAT4x3'
-%%  may be returned. The  `Size'  argument will return the size of the attribute, in units
-%% of the type returned in  `Type' .
-%%
-%% The list of active attribute variables may include both built-in attribute variables (which
-%% begin with the prefix "gl_") as well as user-defined attribute variable names.
-%%
-%% This function will return as much information as it can about the specified active attribute
-%% variable. If no information is available,  `Length'  will be 0, and  `Name'  will
-%% be an empty string. This situation could occur if this function is called after a link
-%% operation that failed. If an error occurs, the return values  `Length' ,  `Size' ,  `Type' 
-%% , and  `Name'  will be unmodified.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetActiveAttrib.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetActiveAttrib.xhtml">external</a> documentation.
 -spec getActiveAttrib(Program, Index, BufSize) -> {Size :: integer(),Type :: enum(),Name :: string()} when Program :: integer(),Index :: integer(),BufSize :: integer().
 getActiveAttrib(Program,Index,BufSize) ->
   call(5456, <<Program:?GLuint,Index:?GLuint,BufSize:?GLsizei>>).
@@ -10899,141 +4540,7 @@ getActiveAttrib(Program,Index,BufSize) ->
 %% A value of 0 for  `Index'  selects the first active uniform variable. Permissible values
 %% for  `Index'  range from 0 to the number of active uniform variables minus 1.
 %%
-%% Shaders may use either built-in uniform variables, user-defined uniform variables, or
-%% both. Built-in uniform variables have a prefix of "gl_" and reference existing OpenGL
-%% state or values derived from such state (e.g.,  `Gl_DepthRangeParameters' , see the
-%% OpenGL Shading Language specification for a complete list.) User-defined uniform variables
-%% have arbitrary names and obtain their values from the application through calls to  {@link gl:uniform1f/2} 
-%% . A uniform variable (either built-in or user-defined) is considered active if it is determined
-%% during the link operation that it may be accessed during program execution. Therefore,  `Program' 
-%%  should have previously been the target of a call to  {@link gl:linkProgram/1} , but it is
-%% not necessary for it to have been linked successfully.
-%%
-%% The size of the character buffer required to store the longest uniform variable name in  `Program' 
-%%  can be obtained by calling  {@link gl:getProgramiv/2}  with the value `?GL_ACTIVE_UNIFORM_MAX_LENGTH'
-%% . This value should be used to allocate a buffer of sufficient size to store the returned
-%% uniform variable name. The size of this character buffer is passed in  `BufSize' ,
-%% and a pointer to this character buffer is passed in  `Name.' 
-%%
-%% ``gl:getActiveUniform'' returns the name of the uniform variable indicated by  `Index' 
-%% , storing it in the character buffer specified by  `Name' . The string returned will
-%% be null terminated. The actual number of characters written into this buffer is returned
-%% in  `Length' , and this count does not include the null termination character. If the
-%% length of the returned string is not required, a value of `?NULL' can be passed in
-%% the  `Length'  argument.
-%%
-%% The  `Type'  argument will return a pointer to the uniform variable's data type. The
-%% symbolic constants returned for uniform types are shown in the table below. <table><tbody>
-%% <tr><td>` Returned Symbolic Contant '</td><td>` Shader Uniform Type '</td></tr></tbody>
-%% <tbody><tr><td>`?GL_FLOAT'</td><td>`?float'</td></tr><tr><td>`?GL_FLOAT_VEC2'
-%% </td><td>`?vec2'</td></tr><tr><td>`?GL_FLOAT_VEC3'</td><td>`?vec3'</td></tr>
-%% <tr><td>`?GL_FLOAT_VEC4'</td><td>`?vec4'</td></tr><tr><td>`?GL_DOUBLE'</td>
-%% <td>`?double'</td></tr><tr><td>`?GL_DOUBLE_VEC2'</td><td>`?dvec2'</td></tr>
-%% <tr><td>`?GL_DOUBLE_VEC3'</td><td>`?dvec3'</td></tr><tr><td>`?GL_DOUBLE_VEC4'
-%% </td><td>`?dvec4'</td></tr><tr><td>`?GL_INT'</td><td>`?int'</td></tr><tr><td>
-%% `?GL_INT_VEC2'</td><td>`?ivec2'</td></tr><tr><td>`?GL_INT_VEC3'</td><td>`?ivec3'
-%% </td></tr><tr><td>`?GL_INT_VEC4'</td><td>`?ivec4'</td></tr><tr><td>`?GL_UNSIGNED_INT'
-%% </td><td>`?unsigned int'</td></tr><tr><td>`?GL_UNSIGNED_INT_VEC2'</td><td>`?uvec2'
-%% </td></tr><tr><td>`?GL_UNSIGNED_INT_VEC3'</td><td>`?uvec3'</td></tr><tr><td>`?GL_UNSIGNED_INT_VEC4'
-%% </td><td>`?uvec4'</td></tr><tr><td>`?GL_BOOL'</td><td>`?bool'</td></tr><tr>
-%% <td>`?GL_BOOL_VEC2'</td><td>`?bvec2'</td></tr><tr><td>`?GL_BOOL_VEC3'</td><td>
-%% `?bvec3'</td></tr><tr><td>`?GL_BOOL_VEC4'</td><td>`?bvec4'</td></tr><tr><td>
-%% `?GL_FLOAT_MAT2'</td><td>`?mat2'</td></tr><tr><td>`?GL_FLOAT_MAT3'</td><td>
-%% `?mat3'</td></tr><tr><td>`?GL_FLOAT_MAT4'</td><td>`?mat4'</td></tr><tr><td>
-%% `?GL_FLOAT_MAT2x3'</td><td>`?mat2x3'</td></tr><tr><td>`?GL_FLOAT_MAT2x4'</td>
-%% <td>`?mat2x4'</td></tr><tr><td>`?GL_FLOAT_MAT3x2'</td><td>`?mat3x2'</td></tr>
-%% <tr><td>`?GL_FLOAT_MAT3x4'</td><td>`?mat3x4'</td></tr><tr><td>`?GL_FLOAT_MAT4x2'
-%% </td><td>`?mat4x2'</td></tr><tr><td>`?GL_FLOAT_MAT4x3'</td><td>`?mat4x3'</td>
-%% </tr><tr><td>`?GL_DOUBLE_MAT2'</td><td>`?dmat2'</td></tr><tr><td>`?GL_DOUBLE_MAT3'
-%% </td><td>`?dmat3'</td></tr><tr><td>`?GL_DOUBLE_MAT4'</td><td>`?dmat4'</td></tr>
-%% <tr><td>`?GL_DOUBLE_MAT2x3'</td><td>`?dmat2x3'</td></tr><tr><td>`?GL_DOUBLE_MAT2x4'
-%% </td><td>`?dmat2x4'</td></tr><tr><td>`?GL_DOUBLE_MAT3x2'</td><td>`?dmat3x2'</td>
-%% </tr><tr><td>`?GL_DOUBLE_MAT3x4'</td><td>`?dmat3x4'</td></tr><tr><td>`?GL_DOUBLE_MAT4x2'
-%% </td><td>`?dmat4x2'</td></tr><tr><td>`?GL_DOUBLE_MAT4x3'</td><td>`?dmat4x3'</td>
-%% </tr><tr><td>`?GL_SAMPLER_1D'</td><td>`?sampler1D'</td></tr><tr><td>`?GL_SAMPLER_2D'
-%% </td><td>`?sampler2D'</td></tr><tr><td>`?GL_SAMPLER_3D'</td><td>`?sampler3D'
-%% </td></tr><tr><td>`?GL_SAMPLER_CUBE'</td><td>`?samplerCube'</td></tr><tr><td>`?GL_SAMPLER_1D_SHADOW'
-%% </td><td>`?sampler1DShadow'</td></tr><tr><td>`?GL_SAMPLER_2D_SHADOW'</td><td>`?sampler2DShadow'
-%% </td></tr><tr><td>`?GL_SAMPLER_1D_ARRAY'</td><td>`?sampler1DArray'</td></tr><tr>
-%% <td>`?GL_SAMPLER_2D_ARRAY'</td><td>`?sampler2DArray'</td></tr><tr><td>`?GL_SAMPLER_1D_ARRAY_SHADOW'
-%% </td><td>`?sampler1DArrayShadow'</td></tr><tr><td>`?GL_SAMPLER_2D_ARRAY_SHADOW'</td>
-%% <td>`?sampler2DArrayShadow'</td></tr><tr><td>`?GL_SAMPLER_2D_MULTISAMPLE'</td><td>
-%% `?sampler2DMS'</td></tr><tr><td>`?GL_SAMPLER_2D_MULTISAMPLE_ARRAY'</td><td>`?sampler2DMSArray'
-%% </td></tr><tr><td>`?GL_SAMPLER_CUBE_SHADOW'</td><td>`?samplerCubeShadow'</td></tr>
-%% <tr><td>`?GL_SAMPLER_BUFFER'</td><td>`?samplerBuffer'</td></tr><tr><td>`?GL_SAMPLER_2D_RECT'
-%% </td><td>`?sampler2DRect'</td></tr><tr><td>`?GL_SAMPLER_2D_RECT_SHADOW'</td><td>
-%% `?sampler2DRectShadow'</td></tr><tr><td>`?GL_INT_SAMPLER_1D'</td><td>`?isampler1D'
-%% </td></tr><tr><td>`?GL_INT_SAMPLER_2D'</td><td>`?isampler2D'</td></tr><tr><td>`?GL_INT_SAMPLER_3D'
-%% </td><td>`?isampler3D'</td></tr><tr><td>`?GL_INT_SAMPLER_CUBE'</td><td>`?isamplerCube'
-%% </td></tr><tr><td>`?GL_INT_SAMPLER_1D_ARRAY'</td><td>`?isampler1DArray'</td></tr>
-%% <tr><td>`?GL_INT_SAMPLER_2D_ARRAY'</td><td>`?isampler2DArray'</td></tr><tr><td>`?GL_INT_SAMPLER_2D_MULTISAMPLE'
-%% </td><td>`?isampler2DMS'</td></tr><tr><td>`?GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY'</td>
-%% <td>`?isampler2DMSArray'</td></tr><tr><td>`?GL_INT_SAMPLER_BUFFER'</td><td>`?isamplerBuffer'
-%% </td></tr><tr><td>`?GL_INT_SAMPLER_2D_RECT'</td><td>`?isampler2DRect'</td></tr><tr>
-%% <td>`?GL_UNSIGNED_INT_SAMPLER_1D'</td><td>`?usampler1D'</td></tr><tr><td>`?GL_UNSIGNED_INT_SAMPLER_2D'
-%% </td><td>`?usampler2D'</td></tr><tr><td>`?GL_UNSIGNED_INT_SAMPLER_3D'</td><td>`?usampler3D'
-%% </td></tr><tr><td>`?GL_UNSIGNED_INT_SAMPLER_CUBE'</td><td>`?usamplerCube'</td></tr>
-%% <tr><td>`?GL_UNSIGNED_INT_SAMPLER_1D_ARRAY'</td><td>`?usampler2DArray'</td></tr>
-%% <tr><td>`?GL_UNSIGNED_INT_SAMPLER_2D_ARRAY'</td><td>`?usampler2DArray'</td></tr>
-%% <tr><td>`?GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE'</td><td>`?usampler2DMS'</td></tr>
-%% <tr><td>`?GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY'</td><td>`?usampler2DMSArray'
-%% </td></tr><tr><td>`?GL_UNSIGNED_INT_SAMPLER_BUFFER'</td><td>`?usamplerBuffer'</td>
-%% </tr><tr><td>`?GL_UNSIGNED_INT_SAMPLER_2D_RECT'</td><td>`?usampler2DRect'</td></tr>
-%% <tr><td>`?GL_IMAGE_1D'</td><td>`?image1D'</td></tr><tr><td>`?GL_IMAGE_2D'</td>
-%% <td>`?image2D'</td></tr><tr><td>`?GL_IMAGE_3D'</td><td>`?image3D'</td></tr>
-%% <tr><td>`?GL_IMAGE_2D_RECT'</td><td>`?image2DRect'</td></tr><tr><td>`?GL_IMAGE_CUBE'
-%% </td><td>`?imageCube'</td></tr><tr><td>`?GL_IMAGE_BUFFER'</td><td>`?imageBuffer'
-%% </td></tr><tr><td>`?GL_IMAGE_1D_ARRAY'</td><td>`?image1DArray'</td></tr><tr><td>
-%% `?GL_IMAGE_2D_ARRAY'</td><td>`?image2DArray'</td></tr><tr><td>`?GL_IMAGE_2D_MULTISAMPLE'
-%% </td><td>`?image2DMS'</td></tr><tr><td>`?GL_IMAGE_2D_MULTISAMPLE_ARRAY'</td><td>
-%% `?image2DMSArray'</td></tr><tr><td>`?GL_INT_IMAGE_1D'</td><td>`?iimage1D'</td>
-%% </tr><tr><td>`?GL_INT_IMAGE_2D'</td><td>`?iimage2D'</td></tr><tr><td>`?GL_INT_IMAGE_3D'
-%% </td><td>`?iimage3D'</td></tr><tr><td>`?GL_INT_IMAGE_2D_RECT'</td><td>`?iimage2DRect'
-%% </td></tr><tr><td>`?GL_INT_IMAGE_CUBE'</td><td>`?iimageCube'</td></tr><tr><td>`?GL_INT_IMAGE_BUFFER'
-%% </td><td>`?iimageBuffer'</td></tr><tr><td>`?GL_INT_IMAGE_1D_ARRAY'</td><td>`?iimage1DArray'
-%% </td></tr><tr><td>`?GL_INT_IMAGE_2D_ARRAY'</td><td>`?iimage2DArray'</td></tr><tr>
-%% <td>`?GL_INT_IMAGE_2D_MULTISAMPLE'</td><td>`?iimage2DMS'</td></tr><tr><td>`?GL_INT_IMAGE_2D_MULTISAMPLE_ARRAY'
-%% </td><td>`?iimage2DMSArray'</td></tr><tr><td>`?GL_UNSIGNED_INT_IMAGE_1D'</td><td>
-%% `?uimage1D'</td></tr><tr><td>`?GL_UNSIGNED_INT_IMAGE_2D'</td><td>`?uimage2D'
-%% </td></tr><tr><td>`?GL_UNSIGNED_INT_IMAGE_3D'</td><td>`?uimage3D'</td></tr><tr><td>
-%% `?GL_UNSIGNED_INT_IMAGE_2D_RECT'</td><td>`?uimage2DRect'</td></tr><tr><td>`?GL_UNSIGNED_INT_IMAGE_CUBE'
-%% </td><td>`?uimageCube'</td></tr><tr><td>`?GL_UNSIGNED_INT_IMAGE_BUFFER'</td><td>
-%% `?uimageBuffer'</td></tr><tr><td>`?GL_UNSIGNED_INT_IMAGE_1D_ARRAY'</td><td>`?uimage1DArray'
-%% </td></tr><tr><td>`?GL_UNSIGNED_INT_IMAGE_2D_ARRAY'</td><td>`?uimage2DArray'</td>
-%% </tr><tr><td>`?GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE'</td><td>`?uimage2DMS'</td></tr>
-%% <tr><td>`?GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY'</td><td>`?uimage2DMSArray'</td>
-%% </tr><tr><td>`?GL_UNSIGNED_INT_ATOMIC_COUNTER'</td><td>`?atomic_uint'</td></tr></tbody>
-%% </table>
-%%
-%% If one or more elements of an array are active, the name of the array is returned in  `Name' 
-%% , the type is returned in  `Type' , and the  `Size'  parameter returns the highest
-%% array element index used, plus one, as determined by the compiler and/or linker. Only
-%% one active uniform variable will be reported for a uniform array.
-%%
-%% Uniform variables that are declared as structures or arrays of structures will not be
-%% returned directly by this function. Instead, each of these uniform variables will be reduced
-%% to its fundamental components containing the "." and "[]" operators such that each of
-%% the names is valid as an argument to  {@link gl:getUniformLocation/2} . Each of these reduced
-%% uniform variables is counted as one active uniform variable and is assigned an index.
-%% A valid name cannot be a structure, an array of structures, or a subcomponent of a vector
-%% or matrix.
-%%
-%% The size of the uniform variable will be returned in  `Size' . Uniform variables other
-%% than arrays will have a size of 1. Structures and arrays of structures will be reduced
-%% as described earlier, such that each of the names returned will be a data type in the
-%% earlier list. If this reduction results in an array, the size returned will be as described
-%% for uniform arrays; otherwise, the size returned will be 1.
-%%
-%% The list of active uniform variables may include both built-in uniform variables (which
-%% begin with the prefix "gl_") as well as user-defined uniform variable names.
-%%
-%% This function will return as much information as it can about the specified active uniform
-%% variable. If no information is available,  `Length'  will be 0, and  `Name'  will
-%% be an empty string. This situation could occur if this function is called after a link
-%% operation that failed. If an error occurs, the return values  `Length' ,  `Size' ,  `Type' 
-%% , and  `Name'  will be unmodified.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetActiveUniform.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetActiveUniform.xhtml">external</a> documentation.
 -spec getActiveUniform(Program, Index, BufSize) -> {Size :: integer(),Type :: enum(),Name :: string()} when Program :: integer(),Index :: integer(),BufSize :: integer().
 getActiveUniform(Program,Index,BufSize) ->
   call(5457, <<Program:?GLuint,Index:?GLuint,BufSize:?GLsizei>>).
@@ -11047,13 +4554,7 @@ getActiveUniform(Program,Index,BufSize) ->
 %% number of shader names that may be returned in  `Shaders'  is specified by  `MaxCount' 
 %% . 
 %%
-%% If the number of names actually returned is not required (for instance, if it has just
-%% been obtained by calling  {@link gl:getProgramiv/2} ), a value of `?NULL' may be passed
-%% for count. If no shader objects are attached to  `Program' , a value of 0 will be returned
-%% in  `Count' . The actual number of attached shaders can be obtained by calling  {@link gl:getProgramiv/2} 
-%%  with the value `?GL_ATTACHED_SHADERS'.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetAttachedShaders.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetAttachedShaders.xhtml">external</a> documentation.
 -spec getAttachedShaders(Program, MaxCount) -> [integer()] when Program :: integer(),MaxCount :: integer().
 getAttachedShaders(Program,MaxCount) ->
   call(5458, <<Program:?GLuint,MaxCount:?GLsizei>>).
@@ -11067,17 +4568,7 @@ getAttachedShaders(Program,MaxCount) ->
 %% attribute variable is not an active attribute in the specified program object or if  `Name' 
 %%  starts with the reserved prefix "gl_", a value of -1 is returned.
 %%
-%% The association between an attribute variable name and a generic attribute index can be
-%% specified at any time by calling  {@link gl:bindAttribLocation/3} . Attribute bindings do
-%% not go into effect until  {@link gl:linkProgram/1}  is called. After a program object has
-%% been linked successfully, the index values for attribute variables remain fixed until
-%% the next link command occurs. The attribute values can only be queried after a link if
-%% the link was successful. ``gl:getAttribLocation'' returns the binding that actually
-%% went into effect the last time  {@link gl:linkProgram/1}  was called for the specified program
-%% object. Attribute bindings that have been specified since the last link operation are
-%% not returned by ``gl:getAttribLocation''.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetAttribLocation.xhtml">external</a> documentation.
 -spec getAttribLocation(Program, Name) -> integer() when Program :: integer(),Name :: string().
 getAttribLocation(Program,Name) ->
   NameLen = length(Name),
@@ -11088,68 +4579,7 @@ getAttribLocation(Program,Name) ->
 %% ``gl:getProgram'' returns in  `Params'  the value of a parameter for a specific program
 %% object. The following parameters are defined:
 %%
-%% `?GL_DELETE_STATUS':  `Params'  returns `?GL_TRUE' if  `Program'  is currently
-%% flagged for deletion, and `?GL_FALSE' otherwise.
-%%
-%% `?GL_LINK_STATUS':  `Params'  returns `?GL_TRUE' if the last link operation
-%% on  `Program'  was successful, and `?GL_FALSE' otherwise.
-%%
-%% `?GL_VALIDATE_STATUS':  `Params'  returns `?GL_TRUE' or if the last validation
-%% operation on  `Program'  was successful, and `?GL_FALSE' otherwise.
-%%
-%% `?GL_INFO_LOG_LENGTH':  `Params'  returns the number of characters in the information
-%% log for  `Program'  including the null termination character (i.e., the size of the
-%% character buffer required to store the information log). If  `Program'  has no information
-%% log, a value of 0 is returned.
-%%
-%% `?GL_ATTACHED_SHADERS':  `Params'  returns the number of shader objects attached
-%% to  `Program' .
-%%
-%% `?GL_ACTIVE_ATOMIC_COUNTER_BUFFERS':  `Params'  returns the number of active attribute
-%% atomic counter buffers used by  `Program' .
-%%
-%% `?GL_ACTIVE_ATTRIBUTES':  `Params'  returns the number of active attribute variables
-%% for  `Program' .
-%%
-%% `?GL_ACTIVE_ATTRIBUTE_MAX_LENGTH':  `Params'  returns the length of the longest
-%% active attribute name for  `Program' , including the null termination character (i.e.,
-%% the size of the character buffer required to store the longest attribute name). If no
-%% active attributes exist, 0 is returned.
-%%
-%% `?GL_ACTIVE_UNIFORMS':  `Params'  returns the number of active uniform variables
-%% for  `Program' .
-%%
-%% `?GL_ACTIVE_UNIFORM_MAX_LENGTH':  `Params'  returns the length of the longest
-%% active uniform variable name for  `Program' , including the null termination character
-%% (i.e., the size of the character buffer required to store the longest uniform variable
-%% name). If no active uniform variables exist, 0 is returned.
-%%
-%% `?GL_PROGRAM_BINARY_LENGTH':  `Params'  returns the length of the program binary,
-%% in bytes that will be returned by a call to  {@link gl:getProgramBinary/2} . When a progam's
-%% `?GL_LINK_STATUS' is `?GL_FALSE', its program binary length is zero. 
-%%
-%% `?GL_TRANSFORM_FEEDBACK_BUFFER_MODE':  `Params'  returns a symbolic constant indicating
-%% the buffer mode used when transform feedback is active. This may be `?GL_SEPARATE_ATTRIBS'
-%%  or `?GL_INTERLEAVED_ATTRIBS'.
-%%
-%% `?GL_TRANSFORM_FEEDBACK_VARYINGS':  `Params'  returns the number of varying variables
-%% to capture in transform feedback mode for the program.
-%%
-%% `?GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH':  `Params'  returns the length of
-%% the longest variable name to be used for transform feedback, including the null-terminator.
-%% 
-%%
-%% `?GL_GEOMETRY_VERTICES_OUT':  `Params'  returns the maximum number of vertices
-%% that the geometry shader in  `Program'  will output.
-%%
-%% `?GL_GEOMETRY_INPUT_TYPE':  `Params'  returns a symbolic constant indicating the
-%% primitive type accepted as input to the geometry shader contained in  `Program' .
-%%
-%% `?GL_GEOMETRY_OUTPUT_TYPE':  `Params'  returns a symbolic constant indicating
-%% the primitive type that will be output by the geometry shader contained in  `Program' .
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetProgram.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetProgram.xhtml">external</a> documentation.
 -spec getProgramiv(Program, Pname) -> integer() when Program :: integer(),Pname :: enum().
 getProgramiv(Program,Pname) ->
   call(5460, <<Program:?GLuint,Pname:?GLenum>>).
@@ -11160,21 +4590,7 @@ getProgramiv(Program,Pname) ->
 %% The  information log for a program object is modified when the  program object is linked
 %% or validated. The string that is  returned will be null terminated.
 %%
-%% ``gl:getProgramInfoLog'' returns in   `InfoLog'  as much of the information log as
-%%  it can, up to a maximum of  `MaxLength'   characters. The number of characters actually
-%% returned,  excluding the null termination character, is specified by   `Length' . If
-%% the length of the returned  string is not required, a value of `?NULL' can  be passed
-%% in the  `Length'  argument. The  size of the buffer required to store the returned
-%% information  log can be obtained by calling   {@link gl:getProgramiv/2}   with the value `?GL_INFO_LOG_LENGTH'
-%% . 
-%%
-%% The information log for a program object is either an  empty string, or a string containing
-%% information about the last  link operation, or a string containing information about the
-%%  last validation operation. It may contain diagnostic messages,  warning messages, and
-%% other information. When a program object  is created, its information log will be a string
-%% of length  0.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetProgramInfoLog.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetProgramInfoLog.xhtml">external</a> documentation.
 -spec getProgramInfoLog(Program, BufSize) -> string() when Program :: integer(),BufSize :: integer().
 getProgramInfoLog(Program,BufSize) ->
   call(5461, <<Program:?GLuint,BufSize:?GLsizei>>).
@@ -11184,28 +4600,7 @@ getProgramInfoLog(Program,BufSize) ->
 %% ``gl:getShader''  returns in  `Params'   the value of a parameter for a specific
 %% shader object. The  following parameters are defined:
 %%
-%% `?GL_SHADER_TYPE':  `Params'  returns   `?GL_VERTEX_SHADER' if    `Shader' 
-%%  is a vertex shader   object, `?GL_GEOMETRY_SHADER' if  `Shader'    is a geometry
-%% shader object, and `?GL_FRAGMENT_SHADER'   if  `Shader'  is a fragment   shader
-%% object.
-%%
-%% `?GL_DELETE_STATUS':  `Params'  returns   `?GL_TRUE' if    `Shader'  is
-%% currently flagged   for deletion, and `?GL_FALSE'   otherwise.
-%%
-%% `?GL_COMPILE_STATUS':  `Params'  returns   `?GL_TRUE' if the last compile
-%%   operation on  `Shader'  was   successful, and `?GL_FALSE'   otherwise.
-%%
-%% `?GL_INFO_LOG_LENGTH':  `Params'  returns the   number of characters in the information
-%% log for    `Shader'  including the null   termination character (i.e., the size of
-%% the   character buffer required to store the information   log). If  `Shader'  has
-%% no   information log, a value of 0 is returned.
-%%
-%% `?GL_SHADER_SOURCE_LENGTH':  `Params'  returns the   length of the concatenation
-%% of the source strings   that make up the shader source for the    `Shader' , including
-%% the null   termination character. (i.e., the size of the   character buffer required to
-%% store the shader   source). If no source code exists, 0 is   returned.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetShader.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetShader.xhtml">external</a> documentation.
 -spec getShaderiv(Shader, Pname) -> integer() when Shader :: integer(),Pname :: enum().
 getShaderiv(Shader,Pname) ->
   call(5462, <<Shader:?GLuint,Pname:?GLenum>>).
@@ -11216,19 +4611,7 @@ getShaderiv(Shader,Pname) ->
 %% The information  log for a shader object is modified when the shader is compiled.  The
 %% string that is returned will be null terminated.
 %%
-%% ``gl:getShaderInfoLog'' returns in   `InfoLog'  as much of the information log as
-%%  it can, up to a maximum of  `MaxLength'   characters. The number of characters actually
-%% returned,  excluding the null termination character, is specified by   `Length' . If
-%% the length of the returned  string is not required, a value of `?NULL' can  be passed
-%% in the  `Length'  argument. The  size of the buffer required to store the returned
-%% information  log can be obtained by calling   {@link gl:getShaderiv/2}   with the value `?GL_INFO_LOG_LENGTH'
-%% .
-%%
-%% The information log for a shader object is a string that  may contain diagnostic messages,
-%% warning messages, and other  information about the last compile operation. When a shader
-%%  object is created, its information log will be a string of  length 0.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetShaderInfoLog.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetShaderInfoLog.xhtml">external</a> documentation.
 -spec getShaderInfoLog(Shader, BufSize) -> string() when Shader :: integer(),BufSize :: integer().
 getShaderInfoLog(Shader,BufSize) ->
   call(5463, <<Shader:?GLuint,BufSize:?GLsizei>>).
@@ -11240,15 +4623,7 @@ getShaderInfoLog(Shader,BufSize) ->
 %% are the result of a previous call to  {@link gl:shaderSource/2} . The string returned by
 %% the function will be null terminated.
 %%
-%% ``gl:getShaderSource'' returns in  `Source'  as much of the source code string as
-%% it can, up to a maximum of  `BufSize'  characters. The number of characters actually
-%% returned, excluding the null termination character, is specified by  `Length' . If
-%% the length of the returned string is not required, a value of `?NULL' can be passed
-%% in the  `Length'  argument. The size of the buffer required to store the returned source
-%% code string can be obtained by calling  {@link gl:getShaderiv/2}  with the value `?GL_SHADER_SOURCE_LENGTH'
-%% .
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetShaderSource.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetShaderSource.xhtml">external</a> documentation.
 -spec getShaderSource(Shader, BufSize) -> string() when Shader :: integer(),BufSize :: integer().
 getShaderSource(Shader,BufSize) ->
   call(5464, <<Shader:?GLuint,BufSize:?GLsizei>>).
@@ -11263,25 +4638,7 @@ getShaderSource(Shader,BufSize) ->
 %% in  `Program' , if  `Name'  starts with the reserved prefix "gl_", or if  `Name' 
 %% is associated with an atomic counter or a named uniform block.
 %%
-%% Uniform variables that are structures or arrays of structures may be queried by calling ``gl:getUniformLocation''
-%%  for each field within the structure. The array element operator "[]" and the structure
-%% field operator "." may be used in  `Name'  in order to select elements within an array
-%% or fields within a structure. The result of using these operators is not allowed to be
-%% another structure, an array of structures, or a subcomponent of a vector or a matrix.
-%% Except if the last part of  `Name'  indicates a uniform variable array, the location
-%% of the first element of an array can be retrieved by using the name of the array, or by
-%% using the name appended by "[0]".
-%%
-%% The actual locations assigned to uniform variables are not known until the program object
-%% is linked successfully. After linking has occurred, the command ``gl:getUniformLocation''
-%%  can be used to obtain the location of a uniform variable. This location value can then
-%% be passed to  {@link gl:uniform1f/2}  to set the value of the uniform variable or to  {@link gl:getUniformfv/2} 
-%%  in order to query the current value of the uniform variable. After a program object has
-%% been linked successfully, the index values for uniform variables remain fixed until the
-%% next link command occurs. Uniform variable locations and values can only be queried after
-%% a link if the link was successful.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetUniformLocation.xhtml">external</a> documentation.
 -spec getUniformLocation(Program, Name) -> integer() when Program :: integer(),Name :: string().
 getUniformLocation(Program,Name) ->
   NameLen = length(Name),
@@ -11300,15 +4657,7 @@ getUniformLocation(Program,Name) ->
 %% The values for uniform variables declared as a matrix will be returned in column major
 %% order.
 %%
-%% The locations assigned to uniform variables are not known until the program object is
-%% linked. After linking has occurred, the command  {@link gl:getUniformLocation/2}  can be
-%% used to obtain the location of a uniform variable. This location value can then be passed
-%% to ``gl:getUniform'' in order to query the current value of the uniform variable. After
-%% a program object has been linked successfully, the index values for uniform variables
-%% remain fixed until the next link command occurs. The uniform variable values can only
-%% be queried after a link if the link was successful.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetUniform.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetUniform.xhtml">external</a> documentation.
 -spec getUniformfv(Program, Location) -> matrix() when Program :: integer(),Location :: integer().
 getUniformfv(Program,Location) ->
   call(5466, <<Program:?GLuint,Location:?GLint>>).
@@ -11325,63 +4674,7 @@ getUniformiv(Program,Location) ->
 %% parameter. The generic vertex attribute to be queried is specified by  `Index' , and
 %% the parameter to be queried is specified by  `Pname' .
 %%
-%% The accepted parameter names are as follows:
-%%
-%% `?GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING':  `Params'  returns a single value, the
-%% name of the buffer object currently bound to the binding point corresponding to generic
-%% vertex attribute array   `Index' . If no buffer object is bound,  0 is returned. The
-%% initial value is 0.
-%%
-%% `?GL_VERTEX_ATTRIB_ARRAY_ENABLED':  `Params'  returns a single value that is non-zero
-%% (true) if the vertex attribute array for  `Index'  is enabled and 0 (false) if it is
-%% disabled. The initial value is `?GL_FALSE'.
-%%
-%% `?GL_VERTEX_ATTRIB_ARRAY_SIZE':  `Params'  returns a single value, the size of
-%% the vertex attribute array for  `Index' . The size is the number of values for each
-%% element of the vertex attribute array, and it will be 1, 2, 3, or 4. The initial value
-%% is 4.
-%%
-%% `?GL_VERTEX_ATTRIB_ARRAY_STRIDE':  `Params'  returns a single value, the array
-%% stride for (number of bytes between successive elements in) the vertex attribute array
-%% for  `Index' . A value of 0 indicates that the array elements are stored sequentially
-%% in memory. The initial value is 0.
-%%
-%% `?GL_VERTEX_ATTRIB_ARRAY_TYPE':  `Params'  returns a single value, a symbolic
-%% constant indicating the array type for the vertex attribute array for  `Index' . Possible
-%% values are `?GL_BYTE', `?GL_UNSIGNED_BYTE', `?GL_SHORT', `?GL_UNSIGNED_SHORT'
-%% , `?GL_INT', `?GL_UNSIGNED_INT', `?GL_FLOAT', and `?GL_DOUBLE'. The
-%% initial value is `?GL_FLOAT'.
-%%
-%% `?GL_VERTEX_ATTRIB_ARRAY_NORMALIZED':  `Params'  returns a single value that is
-%% non-zero (true) if fixed-point data types for the vertex attribute array indicated by  `Index' 
-%%  are normalized when they are converted to floating point, and 0 (false) otherwise. The
-%% initial value is `?GL_FALSE'.
-%%
-%% `?GL_VERTEX_ATTRIB_ARRAY_INTEGER':  `Params'  returns a single value that is non-zero
-%% (true) if fixed-point data types for the vertex attribute array indicated by  `Index' 
-%% have integer data types, and 0 (false) otherwise. The initial value is 0 (`?GL_FALSE').
-%% 
-%%
-%% `?GL_VERTEX_ATTRIB_ARRAY_DIVISOR':  `Params'  returns a single value that is the
-%% frequency divisor used for instanced rendering. See  {@link gl:vertexAttribDivisor/2} . The
-%% initial value is 0.
-%%
-%% `?GL_CURRENT_VERTEX_ATTRIB':  `Params'  returns four values that represent the
-%% current value for the generic vertex attribute specified by index. Generic vertex attribute
-%% 0 is unique in that it has no current state, so an error will be generated if  `Index' 
-%% is 0. The initial value for all other generic vertex attributes is (0,0,0,1).
-%%
-%% ``gl:getVertexAttribdv'' and ``gl:getVertexAttribfv'' return the current attribute
-%% values as four single-precision floating-point values; ``gl:getVertexAttribiv'' reads
-%% them as floating-point values and converts them to four integer values; ``gl:getVertexAttribIiv''
-%%  and ``gl:getVertexAttribIuiv'' read and return them as signed or unsigned integer values,
-%% respectively; ``gl:getVertexAttribLdv'' reads and returns them as four double-precision
-%% floating-point values. 
-%%
-%% All of the parameters except `?GL_CURRENT_VERTEX_ATTRIB' represent state stored in
-%% the currently bound vertex array object.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetVertexAttrib.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetVertexAttrib.xhtml">external</a> documentation.
 -spec getVertexAttribdv(Index, Pname) -> {float(),float(),float(),float()} when Index :: integer(),Pname :: enum().
 getVertexAttribdv(Index,Pname) ->
   call(5468, <<Index:?GLuint,Pname:?GLenum>>).
@@ -11405,7 +4698,7 @@ getVertexAttribiv(Index,Pname) ->
 %% . If  `Program'  is zero or a non-zero value that is not the name of a program object,
 %% or if an error occurs,  ``gl:isProgram'' returns `?GL_FALSE'.
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsProgram.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsProgram.xhtml">external</a> documentation.
 -spec isProgram(Program) -> 0|1 when Program :: integer().
 isProgram(Program) ->
   call(5471, <<Program:?GLuint>>).
@@ -11417,7 +4710,7 @@ isProgram(Program) ->
 %% .  If  `Shader'  is zero or a non-zero value that is not the name of a shader object,
 %% or if an error occurs, ``gl:isShader '' returns `?GL_FALSE'.
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsShader.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsShader.xhtml">external</a> documentation.
 -spec isShader(Shader) -> 0|1 when Shader :: integer().
 isShader(Shader) ->
   call(5472, <<Shader:?GLuint>>).
@@ -11433,111 +4726,7 @@ isShader(Shader) ->
 %% they will be used to create an executable that will run on the programmable fragment processor.
 %% 
 %%
-%% The status of the link operation will be stored as part of the program object's state.
-%% This value will be set to `?GL_TRUE' if the program object was linked without errors
-%% and is ready for use, and `?GL_FALSE' otherwise. It can be queried by calling  {@link gl:getProgramiv/2} 
-%%  with arguments  `Program'  and `?GL_LINK_STATUS'.
-%%
-%% As a result of a successful link operation, all active user-defined uniform variables
-%% belonging to  `Program'  will be initialized to 0, and each of the program object's
-%% active uniform variables will be assigned a location that can be queried by calling  {@link gl:getUniformLocation/2} 
-%% . Also, any active user-defined attribute variables that have not been bound to a generic
-%% vertex attribute index will be bound to one at this time.
-%%
-%% Linking of a program object can fail for a number of reasons as specified in the `OpenGL Shading Language Specification'
-%% . The following lists some of the conditions that will cause a link error.
-%%
-%% The number of active attribute variables supported by the implementation has been exceeded.
-%% 
-%%
-%% The storage limit for uniform variables has been exceeded.
-%%
-%% The number of active uniform variables supported by the implementation has been exceeded.
-%%
-%% The `main' function is missing for the vertex, geometry or fragment shader.
-%%
-%% A varying variable actually used in the fragment shader is not declared in the same way
-%% (or is not declared at all) in the vertex shader, or geometry shader shader if present.
-%%
-%% A reference to a function or variable name is unresolved.
-%%
-%% A shared global is declared with two different types or two different initial values.
-%%
-%% One or more of the attached shader objects has not been successfully compiled.
-%%
-%% Binding a generic attribute matrix caused some rows of the matrix to fall outside the
-%% allowed maximum of `?GL_MAX_VERTEX_ATTRIBS'.
-%%
-%% Not enough contiguous vertex attribute slots could be found to bind attribute matrices.
-%%
-%% The program object contains objects to form a fragment shader but does not contain objects
-%% to form a vertex shader.
-%%
-%% The program object contains objects to form a geometry shader but does not contain objects
-%% to form a vertex shader.
-%%
-%% The program object contains objects to form a geometry shader and the input primitive
-%% type, output primitive type, or maximum output vertex count is not specified in any compiled
-%% geometry shader object.
-%%
-%% The program object contains objects to form a geometry shader and the input primitive
-%% type, output primitive type, or maximum output vertex count is specified differently in
-%% multiple geometry shader objects.
-%%
-%% The number of active outputs in the fragment shader is greater than the value of `?GL_MAX_DRAW_BUFFERS'
-%% .
-%%
-%% The program has an active output assigned to a location greater than or equal to the value
-%% of `?GL_MAX_DUAL_SOURCE_DRAW_BUFFERS' and has an active output assigned an index
-%% greater than or equal to one.
-%%
-%% More than one varying out variable is bound to the same number and index.
-%%
-%% The explicit binding assigments do not leave enough space for the linker to automatically
-%% assign a location for a varying out array, which requires multiple contiguous locations.
-%%
-%% The  `Count'  specified by  {@link gl:transformFeedbackVaryings/3}  is non-zero, but the
-%% program object has no vertex or geometry shader.
-%%
-%% Any variable name specified to  {@link gl:transformFeedbackVaryings/3}  in the  `Varyings' 
-%%  array is not declared as an output in the vertex shader (or the geometry shader, if active).
-%% 
-%%
-%% Any two entries in the  `Varyings'  array given  {@link gl:transformFeedbackVaryings/3} 
-%% specify the same varying variable.
-%%
-%% The total number of components to capture in any transform feedback varying variable is
-%% greater than the constant `?GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS' and the
-%% buffer mode is `?SEPARATE_ATTRIBS'.
-%%
-%% When a program object has been successfully linked, the program object can be made part
-%% of current state by calling  {@link gl:useProgram/1} . Whether or not the link operation
-%% was successful, the program object's information log will be overwritten. The information
-%% log can be retrieved by calling  {@link gl:getProgramInfoLog/2} .
-%%
-%% ``gl:linkProgram'' will also install the generated executables as part of the current
-%% rendering state if the link operation was successful and the specified program object
-%% is already currently in use as a result of a previous call to  {@link gl:useProgram/1} .
-%% If the program object currently in use is relinked unsuccessfully, its link status will
-%% be set to `?GL_FALSE' , but the executables and associated state will remain part
-%% of the current state until a subsequent call to ``gl:useProgram'' removes it from use.
-%% After it is removed from use, it cannot be made part of current state until it has been
-%% successfully relinked.
-%%
-%% If  `Program'  contains shader objects of type `?GL_VERTEX_SHADER', and optionally
-%% of type `?GL_GEOMETRY_SHADER', but does not contain shader objects of type `?GL_FRAGMENT_SHADER'
-%% , the vertex shader executable will be installed on the programmable vertex processor,
-%% the geometry shader executable, if present, will be installed on the programmable geometry
-%% processor, but no executable will be installed on the fragment processor. The results
-%% of rasterizing primitives with such a program will be undefined.
-%%
-%% The program object's information log is updated and the program is generated at the time
-%% of the link operation. After the link operation, applications are free to modify attached
-%% shader objects, compile attached shader objects, detach shader objects, delete shader
-%% objects, and attach additional shader objects. None of these operations affects the information
-%% log or the program that is part of the program object.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLinkProgram.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glLinkProgram.xhtml">external</a> documentation.
 -spec linkProgram(Program) -> 'ok' when Program :: integer().
 linkProgram(Program) ->
   cast(5473, <<Program:?GLuint>>).
@@ -11555,7 +4744,7 @@ linkProgram(Program) ->
 %% than 0 to indicate  that the string is null terminated. The source code strings are  not
 %% scanned or parsed at this time; they are simply copied into  the specified shader object.
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glShaderSource.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glShaderSource.xhtml">external</a> documentation.
 -spec shaderSource(Shader, String) -> 'ok' when Shader :: integer(),String :: iolist().
 shaderSource(Shader,String) ->
   StringTemp = list_to_binary([[Str|[0]] || Str <- String ]),
@@ -11570,35 +4759,7 @@ shaderSource(Shader,String) ->
 %% compiling the shader objects with   {@link gl:compileShader/1} ,  and successfully linking
 %% the program object with   {@link gl:linkProgram/1} .  
 %%
-%% A program object will contain an executable that will run  on the vertex processor if
-%% it contains one or more shader  objects of type `?GL_VERTEX_SHADER' that have  been
-%% successfully compiled and linked. A program object will contain an  executable that will
-%% run on the geometry processor if it contains one or  more shader objects of type `?GL_GEOMETRY_SHADER'
-%%  that  have been successfully compiled and linked.  Similarly, a program object will contain
-%% an executable that will run on the  fragment processor if it contains one or more shader
-%% objects of type  `?GL_FRAGMENT_SHADER' that have been  successfully compiled and
-%% linked.
-%%
-%% While a program object is in use, applications are free to  modify attached shader objects,
-%% compile attached shader objects,  attach additional shader objects, and detach or delete
-%% shader  objects. None of these operations will affect the executables  that are part of
-%% the current state. However, relinking the  program object that is currently in use will
-%% install the program  object as part of the current rendering state if the link  operation
-%% was successful (see   {@link gl:linkProgram/1}   ). If the program object currently in use
-%% is relinked  unsuccessfully, its link status will be set to  `?GL_FALSE', but the
-%% executables and  associated state will remain part of the current state until a  subsequent
-%% call to ``gl:useProgram'' removes it  from use. After it is removed from use, it cannot
-%% be made part  of current state until it has been successfully relinked.
-%%
-%% If  `Program'  is zero, then the current rendering  state refers to an `invalid'
-%% program object and the  results of shader execution are undefined. However, this is not
-%% an error.
-%%
-%% If  `Program'  does not  contain shader objects of type `?GL_FRAGMENT_SHADER',
-%% an  executable will be installed on the vertex, and possibly geometry processors,  but
-%% the results of fragment shader execution will be undefined.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glUseProgram.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glUseProgram.xhtml">external</a> documentation.
 -spec useProgram(Program) -> 'ok' when Program :: integer().
 useProgram(Program) ->
   cast(5475, <<Program:?GLuint>>).
@@ -11611,62 +4772,7 @@ useProgram(Program) ->
 %% on the program object that was made part of current state by calling  {@link gl:useProgram/1} 
 %% .
 %%
-%% The commands ``gl:uniform{1|2|3|4}{f|i|ui}'' are used to change the value of the uniform
-%% variable specified by  `Location'  using the values passed as arguments. The number
-%% specified in the command should match the number of components in the data type of the
-%% specified uniform variable (e.g., `1' for float, int, unsigned int, bool; `2'
-%% for vec2, ivec2, uvec2, bvec2, etc.). The suffix `f' indicates that floating-point
-%% values are being passed; the suffix `i' indicates that integer values are being passed;
-%% the suffix `ui' indicates that unsigned integer values are being passed, and this
-%% type should also match the data type of the specified uniform variable. The `i' variants
-%% of this function should be used to provide values for uniform variables defined as int, ivec2
-%% , ivec3, ivec4, or arrays of these. The `ui' variants of this function should be
-%% used to provide values for uniform variables defined as unsigned int, uvec2, uvec3, uvec4,
-%% or arrays of these. The `f' variants should be used to provide values for uniform
-%% variables of type float, vec2, vec3, vec4, or arrays of these. Either the `i', `ui'
-%%  or `f' variants may be used to provide values for uniform variables of type bool, bvec2
-%% , bvec3, bvec4, or arrays of these. The uniform variable will be set to false if the input
-%% value is 0 or 0.0f, and it will be set to true otherwise.
-%%
-%% All active uniform variables defined in a program object are initialized to 0 when the
-%% program object is linked successfully. They retain the values assigned to them by a call
-%% to ``gl:uniform '' until the next successful link operation occurs on the program object,
-%% when they are once again initialized to 0.
-%%
-%% The commands ``gl:uniform{1|2|3|4}{f|i|ui}v'' can be used to modify a single uniform
-%% variable or a uniform variable array. These commands pass a count and a pointer to the
-%% values to be loaded into a uniform variable or a uniform variable array. A count of 1
-%% should be used if modifying the value of a single uniform variable, and a count of 1 or
-%% greater can be used to modify an entire array or part of an array. When loading `n'
-%% elements starting at an arbitrary position `m' in a uniform variable array, elements
-%% `m' + `n' - 1 in the array will be replaced with the new values. If  `M'  +  `N' 
-%%  - 1 is larger than the size of the uniform variable array, values for all array elements
-%% beyond the end of the array will be ignored. The number specified in the name of the command
-%% indicates the number of components for each element in  `Value' , and it should match
-%% the number of components in the data type of the specified uniform variable (e.g., `1'
-%%  for float, int, bool; `2' for vec2, ivec2, bvec2, etc.). The data type specified
-%% in the name of the command must match the data type for the specified uniform variable
-%% as described previously for ``gl:uniform{1|2|3|4}{f|i|ui}''.
-%%
-%% For uniform variable arrays, each element of the array is considered to be of the type
-%% indicated in the name of the command (e.g., ``gl:uniform3f'' or ``gl:uniform3fv''
-%% can be used to load a uniform variable array of type vec3). The number of elements of
-%% the uniform variable array to be modified is specified by  `Count' 
-%%
-%% The commands ``gl:uniformMatrix{2|3|4|2x3|3x2|2x4|4x2|3x4|4x3}fv''  are used to modify
-%% a matrix or an array of matrices. The numbers in the command name are interpreted as the
-%% dimensionality of the matrix. The number `2' indicates a 2 × 2 matrix (i.e., 4 values),
-%% the number `3' indicates a 3 × 3 matrix (i.e., 9 values), and the number `4'
-%% indicates a 4 × 4 matrix (i.e., 16 values). Non-square matrix dimensionality is explicit,
-%% with the first number representing the number of columns and the second number representing
-%% the number of rows. For example,  `2x4' indicates a 2 × 4 matrix with 2 columns and
-%% 4 rows (i.e., 8 values). If  `Transpose'  is `?GL_FALSE', each matrix is assumed
-%% to be supplied in column major order. If  `Transpose'  is `?GL_TRUE', each matrix
-%% is assumed to be supplied in row major order. The  `Count'  argument indicates the
-%% number of matrices to be passed. A count of 1 should be used if modifying the value of
-%% a single matrix, and a count greater than 1 can be used to modify an array of matrices.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glUniform.xhtml">external</a> documentation.
 -spec uniform1f(Location, V0) -> 'ok' when Location :: integer(),V0 :: float().
 uniform1f(Location,V0) ->
   cast(5476, <<Location:?GLint,V0:?GLfloat>>).
@@ -11811,19 +4917,7 @@ uniformMatrix4fv(Location,Transpose,Value) ->
 %% a way for OpenGL  implementers to convey more information about why the current  program
 %% is inefficient, suboptimal, failing to execute, and so  on.
 %%
-%% The status of the validation operation will be stored as  part of the program object's
-%% state. This value will be set to  `?GL_TRUE' if the validation succeeded, and  `?GL_FALSE'
-%%  otherwise. It can be queried by  calling   {@link gl:getProgramiv/2}   with arguments  `Program' 
-%%  and  `?GL_VALIDATE_STATUS'. If validation is  successful,  `Program'  is guaranteed
-%% to  execute given the current state. Otherwise,   `Program'  is guaranteed to not execute.
-%% 
-%%
-%% This function is typically useful only during application  development. The informational
-%% string stored in the information  log is completely implementation dependent; therefore,
-%% an  application should not expect different OpenGL implementations  to produce identical
-%% information strings.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glValidateProgram.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glValidateProgram.xhtml">external</a> documentation.
 -spec validateProgram(Program) -> 'ok' when Program :: integer().
 validateProgram(Program) ->
   cast(5495, <<Program:?GLuint>>).
@@ -11833,72 +4927,7 @@ validateProgram(Program) ->
 %% The ``gl:vertexAttrib'' family of entry points allows an application to pass generic
 %% vertex attributes in numbered locations.
 %%
-%% Generic attributes are defined as four-component values that are organized into an array.
-%% The first entry of this array is numbered 0, and the size of the array is specified by
-%% the implementation-dependent constant `?GL_MAX_VERTEX_ATTRIBS'. Individual elements
-%% of this array can be modified with a ``gl:vertexAttrib'' call that specifies the index
-%% of the element to be modified and a value for that element.
-%%
-%% These commands can be used to specify one, two, three, or all four components of the generic
-%% vertex attribute specified by  `Index' . A `1' in the name of the command indicates
-%% that only one value is passed, and it will be used to modify the first component of the
-%% generic vertex attribute. The second and third components will be set to 0, and the fourth
-%% component will be set to 1. Similarly, a `2' in the name of the command indicates
-%% that values are provided for the first two components, the third component will be set
-%% to 0, and the fourth component will be set to 1. A `3' in the name of the command
-%% indicates that values are provided for the first three components and the fourth component
-%% will be set to 1, whereas a `4' in the name indicates that values are provided for
-%% all four components.
-%%
-%% The letters `s', `f', `i', `d', `ub', `us', and `ui'
-%% indicate whether the arguments are of type short, float, int, double, unsigned byte, unsigned
-%% short, or unsigned int. When `v' is appended to the name, the commands can take a
-%% pointer to an array of such values.
-%%
-%% Additional capitalized letters can indicate further alterations to the default behavior
-%% of the glVertexAttrib function:
-%%
-%%  The commands containing `N' indicate that  the arguments will be passed as fixed-point
-%% values that are  scaled to a normalized range according to the component  conversion rules
-%% defined by the OpenGL specification. Signed values are understood to represent fixed-point
-%% values in the range [-1,1], and unsigned values are understood to represent fixed-point
-%% values in the range [0,1]. 
-%%
-%%  The commands containing `I' indicate that  the arguments are extended to full signed
-%% or unsigned integers. 
-%%
-%%  The commands containing `P' indicate that  the arguments are stored as packed components
-%% within a larger natural type. 
-%%
-%%  The commands containing `L' indicate that the arguments are full 64-bit quantities
-%% and should be passed directly to shader inputs declared as 64-bit double precision types.
-%% 
-%%
-%% OpenGL Shading Language attribute variables are allowed to be of type mat2, mat3, or mat4.
-%% Attributes of these types may be loaded using the ``gl:vertexAttrib'' entry points.
-%% Matrices must be loaded into successive generic attribute slots in column major order,
-%% with one column of the matrix in each generic attribute slot.
-%%
-%% A user-defined attribute variable declared in a vertex shader can be bound to a generic
-%% attribute index by calling  {@link gl:bindAttribLocation/3} . This allows an application
-%% to use more descriptive variable names in a vertex shader. A subsequent change to the
-%% specified generic vertex attribute will be immediately reflected as a change to the corresponding
-%% attribute variable in the vertex shader.
-%%
-%% The binding between a generic vertex attribute index and a user-defined attribute variable
-%% in a vertex shader is part of the state of a program object, but the current value of
-%% the generic vertex attribute is not. The value of each generic vertex attribute is part
-%% of current state, just like standard vertex attributes, and it is maintained even if a
-%% different program object is used.
-%%
-%% An application may freely modify generic vertex attributes that are not bound to a named
-%% vertex shader attribute variable. These values are simply maintained as part of current
-%% state and will not be accessed by the vertex shader. If a generic vertex attribute bound
-%% to an attribute variable in a vertex shader is not updated while the vertex shader is
-%% executing, the vertex shader will repeatedly use the current value for the generic vertex
-%% attribute.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttrib.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glVertexAttrib.xhtml">external</a> documentation.
 -spec vertexAttrib1d(Index, X) -> 'ok' when Index :: integer(),X :: float().
 vertexAttrib1d(Index,X) ->
   cast(5496, <<Index:?GLuint,0:32,X:?GLdouble>>).
@@ -12096,37 +5125,7 @@ vertexAttrib4usv(Index,{V1,V2,V3,V4}) ->
 %% and  `Stride'  specifies the byte stride from one attribute to the next, allowing vertices
 %% and attributes to be packed into a single array or stored in separate arrays. 
 %%
-%%  For ``gl:vertexAttribPointer'', if  `Normalized'  is set to `?GL_TRUE', it
-%% indicates that values stored in an integer format are to be mapped to the range [-1,1]
-%% (for signed values) or [0,1] (for unsigned values) when they are accessed and converted
-%% to floating point. Otherwise, values will be converted to floats directly without normalization.
-%% 
-%%
-%%  For ``gl:vertexAttribIPointer'', only the integer types `?GL_BYTE', `?GL_UNSIGNED_BYTE'
-%% , `?GL_SHORT', `?GL_UNSIGNED_SHORT', `?GL_INT', `?GL_UNSIGNED_INT'
-%% are accepted. Values are always left as integer values. 
-%%
-%% ``gl:vertexAttribLPointer'' specifies state for a generic vertex attribute array associated
-%% with a shader attribute variable declared with 64-bit double precision components.  `Type' 
-%%  must be `?GL_DOUBLE'.  `Index' ,  `Size' , and  `Stride'  behave as described
-%% for ``gl:vertexAttribPointer'' and ``gl:vertexAttribIPointer''. 
-%%
-%%  If  `Pointer'  is not NULL, a non-zero named buffer object must be bound to the `?GL_ARRAY_BUFFER'
-%%  target (see  {@link gl:bindBuffer/2} ), otherwise an error is generated.  `Pointer' 
-%% is treated as a byte offset into the buffer object's data store. The buffer object binding
-%% (`?GL_ARRAY_BUFFER_BINDING') is saved as generic vertex attribute array state (`?GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING'
-%% ) for index  `Index' . 
-%%
-%%  When a generic vertex attribute array is specified,  `Size' ,  `Type' ,  `Normalized' 
-%% ,  `Stride' , and  `Pointer'  are saved as vertex array state, in addition to the
-%% current vertex array buffer object binding. 
-%%
-%%  To enable and disable a generic vertex attribute array, call  {@link gl:disableVertexAttribArray/1} 
-%%  and  {@link gl:disableVertexAttribArray/1}  with  `Index' . If enabled, the generic vertex
-%% attribute array is used when  {@link gl:drawArrays/3} ,  {@link gl:multiDrawArrays/3} ,  {@link gl:drawElements/4} 
-%% , see `glMultiDrawElements', or  {@link gl:drawRangeElements/6}  is called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glVertexAttribPointer.xhtml">external</a> documentation.
 -spec vertexAttribPointer(Index, Size, Type, Normalized, Stride, Pointer) -> 'ok' when Index :: integer(),Size :: integer(),Type :: enum(),Normalized :: 0|1,Stride :: integer(),Pointer :: offset()|mem().
 vertexAttribPointer(Index,Size,Type,Normalized,Stride,Pointer) when  is_integer(Pointer) ->
   cast(5519, <<Index:?GLuint,Size:?GLint,Type:?GLenum,Normalized:?GLboolean,0:24,Stride:?GLsizei,Pointer:?GLuint>>);
@@ -12184,7 +5183,7 @@ uniformMatrix4x3fv(Location,Transpose,Value) ->
 
 %% @doc glColorMaski
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glColorMaski.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec colorMaski(Index, R, G, B, A) -> 'ok' when Index :: integer(),R :: 0|1,G :: 0|1,B :: 0|1,A :: 0|1.
 colorMaski(Index,R,G,B,A) ->
   cast(5527, <<Index:?GLuint,R:?GLboolean,G:?GLboolean,B:?GLboolean,A:?GLboolean>>).
@@ -12209,14 +5208,14 @@ enablei(Target,Index) ->
 
 %% @doc glEnablei
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glEnablei.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec disablei(Target, Index) -> 'ok' when Target :: enum(),Index :: integer().
 disablei(Target,Index) ->
   cast(5531, <<Target:?GLenum,Index:?GLuint>>).
 
 %% @doc glIsEnabledi
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsEnabledi.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec isEnabledi(Target, Index) -> 0|1 when Target :: enum(),Index :: integer().
 isEnabledi(Target,Index) ->
   call(5532, <<Target:?GLenum,Index:?GLuint>>).
@@ -12228,23 +5227,7 @@ isEnabledi(Target,Index) ->
 %% a call to ``gl:beginTransformFeedback'' until a subsequent call to  {@link gl:beginTransformFeedback/1} 
 %% . Transform feedback commands must be paired. 
 %%
-%%  If no geometry shader is present, while transform feedback is active the  `Mode' 
-%% parameter to  {@link gl:drawArrays/3}  must match those specified in the following table: <table>
-%% <tbody><tr><td>` Transform Feedback ' `PrimitiveMode' </td><td>` Allowed Render Primitive '
-%%  `Modes' </td></tr></tbody><tbody><tr><td>`?GL_POINTS'</td><td>`?GL_POINTS'</td>
-%% </tr><tr><td>`?GL_LINES'</td><td>`?GL_LINES', `?GL_LINE_LOOP', `?GL_LINE_STRIP'
-%% , `?GL_LINES_ADJACENCY', `?GL_LINE_STRIP_ADJACENCY'</td></tr><tr><td>`?GL_TRIANGLES'
-%% </td><td>`?GL_TRIANGLES', `?GL_TRIANGLE_STRIP', `?GL_TRIANGLE_FAN', `?GL_TRIANGLES_ADJACENCY'
-%% , `?GL_TRIANGLE_STRIP_ADJACENCY'</td></tr></tbody></table>
-%%
-%%  If a geometry shader is present, the output primitive type from the geometry shader must
-%% match those provided in the following table: <table><tbody><tr><td>` Transform Feedback '
-%%  `PrimitiveMode' </td><td>` Allowed Geometry Shader Output Primitive Type '</td></tr>
-%% </tbody><tbody><tr><td>`?GL_POINTS'</td><td>`?points'</td></tr><tr><td>`?GL_LINES'
-%% </td><td>`?line_strip'</td></tr><tr><td>`?GL_TRIANGLES'</td><td>`?triangle_strip'
-%% </td></tr></tbody></table>
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBeginTransformFeedback.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBeginTransformFeedback.xhtml">external</a> documentation.
 -spec beginTransformFeedback(PrimitiveMode) -> 'ok' when PrimitiveMode :: enum().
 beginTransformFeedback(PrimitiveMode) ->
   cast(5533, <<PrimitiveMode:?GLenum>>).
@@ -12265,11 +5248,7 @@ endTransformFeedback() ->
 %% a range of  `Buffer'  to the indexed buffer binding target, ``gl:bindBufferBase''
 %% also binds the range to the generic buffer binding point specified by  `Target' . 
 %%
-%%  `Offset'  specifies the offset in basic machine units into the buffer object  `Buffer' 
-%%  and  `Size'  specifies the amount of data that can be read from the buffer object
-%% while used as an indexed target. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindBufferRange.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindBufferRange.xhtml">external</a> documentation.
 -spec bindBufferRange(Target, Index, Buffer, Offset, Size) -> 'ok' when Target :: enum(),Index :: integer(),Buffer :: integer(),Offset :: integer(),Size :: integer().
 bindBufferRange(Target,Index,Buffer,Offset,Size) ->
   cast(5535, <<Target:?GLenum,Index:?GLuint,Buffer:?GLuint,0:32,Offset:?GLintptr,Size:?GLsizeiptr>>).
@@ -12284,7 +5263,7 @@ bindBufferRange(Target,Index,Buffer,Offset,Size) ->
 %% binding target, ``gl:bindBufferBase'' also binds  `Buffer'  to the generic buffer
 %% binding point specified by  `Target' . 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindBufferBase.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindBufferBase.xhtml">external</a> documentation.
 -spec bindBufferBase(Target, Index, Buffer) -> 'ok' when Target :: enum(),Index :: integer(),Buffer :: integer().
 bindBufferBase(Target,Index,Buffer) ->
   cast(5536, <<Target:?GLenum,Index:?GLuint,Buffer:?GLuint>>).
@@ -12297,32 +5276,7 @@ bindBufferBase(Target,Index,Buffer) ->
 %% from the emitted vertices. Otherwise, the values of the selected vertex shader outputs
 %% are recorded. 
 %%
-%%  The state set by ``gl:tranformFeedbackVaryings'' is stored and takes effect next time  {@link gl:linkProgram/1} 
-%%  is called on  `Program' . When  {@link gl:linkProgram/1}  is called,  `Program'  is
-%% linked so that the values of the specified varying variables for the vertices of each
-%% primitive generated by the GL are written to a single buffer object if  `BufferMode' 
-%% is `?GL_INTERLEAVED_ATTRIBS' or multiple buffer objects if  `BufferMode'  is `?GL_SEPARATE_ATTRIBS'
-%% . 
-%%
-%%  In addition to the errors generated by ``gl:transformFeedbackVaryings'', the program  `Program' 
-%%  will fail to link if: 
-%%
-%%  The count specified by ``gl:transformFeedbackVaryings'' is non-zero, but the program
-%% object has no vertex or geometry shader. 
-%%
-%%  Any variable name specified in the  `Varyings'  array is not declared as an output
-%% in the vertex shader (or the geometry shader, if active). 
-%%
-%%  Any two entries in the  `Varyings'  array specify the same varying variable. 
-%%
-%%  The total number of components to capture in any varying variable in  `Varyings' 
-%% is greater than the constant `?GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS' and
-%% the buffer mode is `?GL_SEPARATE_ATTRIBS'. 
-%%
-%%  The total number of components to capture is greater than the constant `?GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS'
-%%  and the buffer mode is `?GL_INTERLEAVED_ATTRIBS'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTransformFeedbackVaryings.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTransformFeedbackVaryings.xhtml">external</a> documentation.
 -spec transformFeedbackVaryings(Program, Varyings, BufferMode) -> 'ok' when Program :: integer(),Varyings :: iolist(),BufferMode :: enum().
 transformFeedbackVaryings(Program,Varyings,BufferMode) ->
   VaryingsTemp = list_to_binary([[Str|[0]] || Str <- Varyings ]),
@@ -12338,26 +5292,7 @@ transformFeedbackVaryings(Program,Varyings,BufferMode) ->
 %% the  `Varyings'  array passed to  {@link gl:transformFeedbackVaryings/3} , and an  `Index' 
 %%  of `?GL_TRANSFORM_FEEDBACK_VARYINGS-1' selects the last such variable. 
 %%
-%%  The name of the selected varying is returned as a null-terminated string in  `Name' .
-%% The actual number of characters written into  `Name' , excluding the null terminator,
-%% is returned in  `Length' . If  `Length'  is NULL, no length is returned. The maximum
-%% number of characters that may be written into  `Name' , including the null terminator,
-%% is specified by  `BufSize' . 
-%%
-%%  The length of the longest varying name in program is given by `?GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH'
-%% , which can be queried with  {@link gl:getProgramiv/2} . 
-%%
-%%  For the selected varying variable, its type is returned into  `Type' . The size of
-%% the varying is returned into  `Size' . The value in  `Size'  is in units of the
-%% type returned in  `Type' . The type returned can be any of the scalar, vector, or matrix
-%% attribute types returned by  {@link gl:getActiveAttrib/3} . If an error occurred, the return
-%% parameters  `Length' ,  `Size' ,  `Type'  and  `Name'  will be unmodified.
-%% This command will return as much information about the varying variables as possible.
-%% If no information is available,  `Length'  will be set to zero and  `Name'  will
-%% be an empty string. This situation could arise if ``gl:getTransformFeedbackVarying''
-%% is called after a failed link. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetTransformFeedbackVarying.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetTransformFeedbackVarying.xhtml">external</a> documentation.
 -spec getTransformFeedbackVarying(Program, Index, BufSize) -> {Size :: integer(),Type :: enum(),Name :: string()} when Program :: integer(),Index :: integer(),BufSize :: integer().
 getTransformFeedbackVarying(Program,Index,BufSize) ->
   call(5538, <<Program:?GLuint,Index:?GLuint,BufSize:?GLsizei>>).
@@ -12372,7 +5307,7 @@ getTransformFeedbackVarying(Program,Index,BufSize) ->
 %% is disabled. If  `Clamp'  is `?GL_FIXED_ONLY', read color clamping is enabled
 %% only if the selected read buffer has fixed point components and disabled otherwise. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClampColor.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glClampColor.xhtml">external</a> documentation.
 -spec clampColor(Target, Clamp) -> 'ok' when Target :: enum(),Clamp :: enum().
 clampColor(Target,Clamp) ->
   cast(5539, <<Target:?GLenum,Clamp:?GLenum>>).
@@ -12393,18 +5328,7 @@ clampColor(Target,Clamp) ->
 %%  is `?GL_QUERY_NO_WAIT', the GL may choose to unconditionally execute the subsequent
 %% rendering commands without waiting for the query to complete. 
 %%
-%%  If  `Mode'  is `?GL_QUERY_BY_REGION_WAIT', the GL will also wait for occlusion
-%% query results and discard rendering commands if the result of the occlusion query is zero.
-%% If the query result is non-zero, subsequent rendering commands are executed, but the GL
-%% may discard the results of the commands for any region of the framebuffer that did not
-%% contribute to the sample count in the specified occlusion query. Any such discarding is
-%% done in an implementation-dependent manner, but the rendering command results may not
-%% be discarded for any samples that contributed to the occlusion query sample count. If  `Mode' 
-%%  is `?GL_QUERY_BY_REGION_NO_WAIT', the GL operates as in `?GL_QUERY_BY_REGION_WAIT'
-%% , but may choose to unconditionally execute the subsequent rendering commands without
-%% waiting for the query to complete. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBeginConditionalRender.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBeginConditionalRender.xhtml">external</a> documentation.
 -spec beginConditionalRender(Id, Mode) -> 'ok' when Id :: integer(),Mode :: enum().
 beginConditionalRender(Id,Mode) ->
   cast(5540, <<Id:?GLuint,Mode:?GLenum>>).
@@ -12417,7 +5341,7 @@ endConditionalRender() ->
 
 %% @doc glVertexAttribIPointer
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribIPointer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec vertexAttribIPointer(Index, Size, Type, Stride, Pointer) -> 'ok' when Index :: integer(),Size :: integer(),Type :: enum(),Stride :: integer(),Pointer :: offset()|mem().
 vertexAttribIPointer(Index,Size,Type,Stride,Pointer) when  is_integer(Pointer) ->
   cast(5542, <<Index:?GLuint,Size:?GLint,Type:?GLenum,Stride:?GLsizei,Pointer:?GLuint>>);
@@ -12433,7 +5357,7 @@ getVertexAttribIiv(Index,Pname) ->
 
 %% @doc glGetVertexAttribI
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetVertexAttribI.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getVertexAttribIuiv(Index, Pname) -> {integer(),integer(),integer(),integer()} when Index :: integer(),Pname :: enum().
 getVertexAttribIuiv(Index,Pname) ->
   call(5545, <<Index:?GLuint,Pname:?GLenum>>).
@@ -12556,21 +5480,7 @@ getUniformuiv(Program,Location) ->
 %% .  `Name'  must be a null-terminated string.  `ColorNumber'  must be less than `?GL_MAX_DRAW_BUFFERS'
 %% . 
 %%
-%%  The bindings specified by ``gl:bindFragDataLocation'' have no effect until  `Program' 
-%%  is next linked. Bindings may be specified at any time after  `Program'  has been created.
-%% Specifically, they may be specified before shader objects are attached to the program.
-%% Therefore, any name may be specified in  `Name' , including a name that is never used
-%% as a varying out variable in any fragment shader object. Names beginning with `?gl_'
-%% are reserved by the GL. 
-%%
-%%  In addition to the errors generated by ``gl:bindFragDataLocation'', the program  `Program' 
-%%  will fail to link if: 
-%%
-%%  The number of active outputs is greater than the value `?GL_MAX_DRAW_BUFFERS'. 
-%%
-%%  More than one varying out variable is bound to the same color number. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindFragDataLocation.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindFragDataLocation.xhtml">external</a> documentation.
 -spec bindFragDataLocation(Program, Color, Name) -> 'ok' when Program :: integer(),Color :: integer(),Name :: string().
 bindFragDataLocation(Program,Color,Name) ->
   NameLen = length(Name),
@@ -12584,7 +5494,7 @@ bindFragDataLocation(Program,Color,Name) ->
 %% not the name of an active user-defined varying out fragment shader variable within  `Program' 
 %% , -1 will be returned. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetFragDataLocation.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetFragDataLocation.xhtml">external</a> documentation.
 -spec getFragDataLocation(Program, Name) -> integer() when Program :: integer(),Name :: string().
 getFragDataLocation(Program,Name) ->
   NameLen = length(Name),
@@ -12655,7 +5565,7 @@ texParameterIiv(Target,Pname,Params) ->
 
 %% @doc glTexParameterI
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexParameterI.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec texParameterIuiv(Target, Pname, Params) -> 'ok' when Target :: enum(),Pname :: enum(),Params :: tuple().
 texParameterIuiv(Target,Pname,Params) ->
   cast(5570, <<Target:?GLenum,Pname:?GLenum,(size(Params)):?GLuint,
@@ -12669,7 +5579,7 @@ getTexParameterIiv(Target,Pname) ->
 
 %% @doc glGetTexParameterI
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetTexParameterI.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getTexParameterIuiv(Target, Pname) -> {integer(),integer(),integer(),integer()} when Target :: enum(),Pname :: enum().
 getTexParameterIuiv(Target,Pname) ->
   call(5572, <<Target:?GLenum,Pname:?GLenum>>).
@@ -12685,24 +5595,7 @@ getTexParameterIuiv(Target,Pname) ->
 %% and conversion for fixed-point color buffers are performed in the same fashion as  {@link gl:clearColor/4} 
 %% . 
 %%
-%%  If  `Buffer'  is `?GL_DEPTH',  `DrawBuffer'  must be zero, and  `Value' 
-%% points to a single value to clear the depth buffer to. Only ``gl:clearBufferfv'' should
-%% be used to clear depth buffers. Clamping and conversion for fixed-point depth buffers
-%% are performed in the same fashion as  {@link gl:clearDepth/1} . 
-%%
-%%  If  `Buffer'  is `?GL_STENCIL',  `DrawBuffer'  must be zero, and  `Value' 
-%% points to a single value to clear the stencil buffer to. Only ``gl:clearBufferiv'' should
-%% be used to clear stencil buffers. Masing and type conversion are performed in the same
-%% fashion as  {@link gl:clearStencil/1} . 
-%%
-%% ``gl:clearBufferfi'' may be used to clear the depth and stencil buffers.  `Buffer' 
-%% must be `?GL_DEPTH_STENCIL' and  `DrawBuffer'  must be zero.  `Depth'  and   `Stencil' 
-%%  are the depth and stencil values, respectively. 
-%%
-%%  The result of ``gl:clearBuffer'' is undefined if no conversion between the type of  `Value' 
-%%  and the buffer being cleared is defined. However, this is not an error. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClearBuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glClearBuffer.xhtml">external</a> documentation.
 -spec clearBufferiv(Buffer, Drawbuffer, Value) -> 'ok' when Buffer :: enum(),Drawbuffer :: integer(),Value :: tuple().
 clearBufferiv(Buffer,Drawbuffer,Value) ->
   cast(5573, <<Buffer:?GLenum,Drawbuffer:?GLint,(size(Value)):?GLuint,
@@ -12724,7 +5617,7 @@ clearBufferfv(Buffer,Drawbuffer,Value) ->
 
 %% @doc glClearBufferfi
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClearBufferfi.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec clearBufferfi(Buffer, Drawbuffer, Depth, Stencil) -> 'ok' when Buffer :: enum(),Drawbuffer :: integer(),Depth :: float(),Stencil :: integer().
 clearBufferfi(Buffer,Drawbuffer,Depth,Stencil) ->
   cast(5576, <<Buffer:?GLenum,Drawbuffer:?GLint,Depth:?GLfloat,Stencil:?GLint>>).
@@ -12737,14 +5630,14 @@ getStringi(Name,Index) ->
 
 %% @doc glDrawArraysInstance
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawArraysInstance.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec drawArraysInstanced(Mode, First, Count, Primcount) -> 'ok' when Mode :: enum(),First :: integer(),Count :: integer(),Primcount :: integer().
 drawArraysInstanced(Mode,First,Count,Primcount) ->
   cast(5578, <<Mode:?GLenum,First:?GLint,Count:?GLsizei,Primcount:?GLsizei>>).
 
 %% @doc glDrawElementsInstance
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawElementsInstance.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec drawElementsInstanced(Mode, Count, Type, Indices, Primcount) -> 'ok' when Mode :: enum(),Count :: integer(),Type :: enum(),Indices :: offset()|mem(),Primcount :: integer().
 drawElementsInstanced(Mode,Count,Type,Indices,Primcount) when  is_integer(Indices) ->
   cast(5579, <<Mode:?GLenum,Count:?GLsizei,Type:?GLenum,Indices:?GLuint,Primcount:?GLsizei>>);
@@ -12760,62 +5653,9 @@ drawElementsInstanced(Mode,Count,Type,Indices,Primcount) ->
 %% buffer texture is detached and no new buffer object is attached. If  `Buffer'  is non-zero,
 %% it must be the name of an existing buffer object.  `Target'  must be `?GL_TEXTURE_BUFFER'
 %% .  `Internalformat'  specifies the storage format, and must be one of the following
-%% sized internal formats: <table><tbody><tr><td></td><td></td><td></td><td></td><td>` Component '
-%% </td></tr></tbody><tbody><tr><td>`Sized Internal Format'</td><td>`Base Type'</td>
-%% <td>`Components'</td><td>`Norm'</td><td>0</td><td>1</td><td>2</td><td>3</td></tr>
-%% <tr><td>`?GL_R8'</td><td>ubyte</td><td>1</td><td>YES</td><td>R</td><td>0</td><td>0</td>
-%% <td>1</td></tr><tr><td>`?GL_R16'</td><td>ushort</td><td>1</td><td>YES</td><td>R</td><td>
-%% 0</td><td>0</td><td>1</td></tr><tr><td>`?GL_R16F'</td><td>half</td><td>1</td><td>NO</td>
-%% <td>R</td><td>0</td><td>0</td><td>1</td></tr><tr><td>`?GL_R32F'</td><td>float</td><td>
-%% 1</td><td>NO</td><td>R</td><td>0</td><td>0</td><td>1</td></tr><tr><td>`?GL_R8I'</td><td>
-%% byte</td><td>1</td><td>NO</td><td>R</td><td>0</td><td>0</td><td>1</td></tr><tr><td>`?GL_R16I'
-%% </td><td>short</td><td>1</td><td>NO</td><td>R</td><td>0</td><td>0</td><td>1</td></tr><tr><td>
-%% `?GL_R32I'</td><td>int</td><td>1</td><td>NO</td><td>R</td><td>0</td><td>0</td><td>1</td>
-%% </tr><tr><td>`?GL_R8UI'</td><td>ubyte</td><td>1</td><td>NO</td><td>R</td><td>0</td><td>
-%% 0</td><td>1</td></tr><tr><td>`?GL_R16UI'</td><td>ushort</td><td>1</td><td>NO</td><td>
-%% R</td><td>0</td><td>0</td><td>1</td></tr><tr><td>`?GL_R32UI'</td><td>uint</td><td>1</td>
-%% <td>NO</td><td>R</td><td>0</td><td>0</td><td>1</td></tr><tr><td>`?GL_RG8'</td><td>ubyte
-%% </td><td>2</td><td>YES</td><td>R</td><td>G</td><td>0</td><td>1</td></tr><tr><td>`?GL_RG16'
-%% </td><td>ushort</td><td>2</td><td>YES</td><td>R</td><td>G</td><td>0</td><td>1</td></tr><tr>
-%% <td>`?GL_RG16F'</td><td>half</td><td>2</td><td>NO</td><td>R</td><td>G</td><td>0</td><td>
-%% 1</td></tr><tr><td>`?GL_RG32F'</td><td>float</td><td>2</td><td>NO</td><td>R</td><td>G
-%% </td><td>0</td><td>1</td></tr><tr><td>`?GL_RG8I'</td><td>byte</td><td>2</td><td>NO</td>
-%% <td>R</td><td>G</td><td>0</td><td>1</td></tr><tr><td>`?GL_RG16I'</td><td>short</td><td>
-%% 2</td><td>NO</td><td>R</td><td>G</td><td>0</td><td>1</td></tr><tr><td>`?GL_RG32I'</td>
-%% <td>int</td><td>2</td><td>NO</td><td>R</td><td>G</td><td>0</td><td>1</td></tr><tr><td>`?GL_RG8UI'
-%% </td><td>ubyte</td><td>2</td><td>NO</td><td>R</td><td>G</td><td>0</td><td>1</td></tr><tr><td>
-%% `?GL_RG16UI'</td><td>ushort</td><td>2</td><td>NO</td><td>R</td><td>G</td><td>0</td><td>
-%% 1</td></tr><tr><td>`?GL_RG32UI'</td><td>uint</td><td>2</td><td>NO</td><td>R</td><td>G
-%% </td><td>0</td><td>1</td></tr><tr><td>`?GL_RGB32F'</td><td>float</td><td>3</td><td>NO
-%% </td><td>R</td><td>G</td><td>B</td><td>1</td></tr><tr><td>`?GL_RGB32I'</td><td>int</td>
-%% <td>3</td><td>NO</td><td>R</td><td>G</td><td>B</td><td>1</td></tr><tr><td>`?GL_RGB32UI'
-%% </td><td>uint</td><td>3</td><td>NO</td><td>R</td><td>G</td><td>B</td><td>1</td></tr><tr><td>
-%% `?GL_RGBA8'</td><td>uint</td><td>4</td><td>YES</td><td>R</td><td>G</td><td>B</td><td>
-%% A</td></tr><tr><td>`?GL_RGBA16'</td><td>short</td><td>4</td><td>YES</td><td>R</td><td>
-%% G</td><td>B</td><td>A</td></tr><tr><td>`?GL_RGBA16F'</td><td>half</td><td>4</td><td>NO
-%% </td><td>R</td><td>G</td><td>B</td><td>A</td></tr><tr><td>`?GL_RGBA32F'</td><td>float
-%% </td><td>4</td><td>NO</td><td>R</td><td>G</td><td>B</td><td>A</td></tr><tr><td>`?GL_RGBA8I'
-%% </td><td>byte</td><td>4</td><td>NO</td><td>R</td><td>G</td><td>B</td><td>A</td></tr><tr><td>
-%% `?GL_RGBA16I'</td><td>short</td><td>4</td><td>NO</td><td>R</td><td>G</td><td>B</td><td>
-%% A</td></tr><tr><td>`?GL_RGBA32I'</td><td>int</td><td>4</td><td>NO</td><td>R</td><td>G
-%% </td><td>B</td><td>A</td></tr><tr><td>`?GL_RGBA8UI'</td><td>ubyte</td><td>4</td><td>NO
-%% </td><td>R</td><td>G</td><td>B</td><td>A</td></tr><tr><td>`?GL_RGBA16UI'</td><td>ushort
-%% </td><td>4</td><td>NO</td><td>R</td><td>G</td><td>B</td><td>A</td></tr><tr><td>`?GL_RGBA32UI'
-%% </td><td>uint</td><td>4</td><td>NO</td><td>R</td><td>G</td><td>B</td><td>A</td></tr></tbody>
-%% </table>
-%%
-%%  When a buffer object is attached to a buffer texture, the buffer object's data store
-%% is taken as the texture's texel array. The number of texels in the buffer texture's texel
-%% array is given by  buffer_size components×sizeof( base_type/)
-%%
-%%  where `buffer_size' is the size of the buffer object, in basic machine units and
-%% components and base type are the element count and base data type for elements, as specified
-%% in the table above. The number of texels in the texel array is then clamped to the implementation-dependent
-%% limit `?GL_MAX_TEXTURE_BUFFER_SIZE'. When a buffer texture is accessed in a shader,
-%% the results of a texel fetch are undefined if the specified texel coordinate is negative,
-%% or greater than or equal to the clamped number of texels in the texel array. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexBuffer.xml">external</a> documentation.
+%% sized internal formats: 
+%%
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexBuffer.xhtml">external</a> documentation.
 -spec texBuffer(Target, Internalformat, Buffer) -> 'ok' when Target :: enum(),Internalformat :: enum(),Buffer :: integer().
 texBuffer(Target,Internalformat,Buffer) ->
   cast(5581, <<Target:?GLenum,Internalformat:?GLenum,Buffer:?GLuint>>).
@@ -12825,19 +5665,7 @@ texBuffer(Target,Internalformat,Buffer) ->
 %% ``gl:primitiveRestartIndex'' specifies a vertex array element that is treated specially
 %% when primitive restarting is enabled. This is known as the primitive restart index. 
 %%
-%%  When one of the `Draw*' commands transfers a set of generic attribute array elements
-%% to the GL, if the index within the vertex arrays corresponding to that set is equal to
-%% the primitive restart index, then the GL does not process those elements as a vertex.
-%% Instead, it is as if the drawing command ended with the immediately preceding transfer,
-%% and another drawing command is immediately started with the same parameters, but only
-%% transferring the immediately following element through the end of the originally specified
-%% elements. 
-%%
-%%  When either  {@link gl:drawElementsBaseVertex/5} ,  {@link gl:drawElementsInstancedBaseVertex/6} 
-%%  or see `glMultiDrawElementsBaseVertex' is used, the primitive restart comparison
-%% occurs before the basevertex offset is added to the array index. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPrimitiveRestartIndex.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glPrimitiveRestartIndex.xhtml">external</a> documentation.
 -spec primitiveRestartIndex(Index) -> 'ok' when Index :: integer().
 primitiveRestartIndex(Index) ->
   cast(5582, <<Index:?GLuint>>).
@@ -12850,7 +5678,7 @@ getInteger64i_v(Target,Index) ->
 
 %% @doc glGetBufferParameteri64v
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetBufferParameteri64v.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getBufferParameteri64v(Target, Pname) -> [integer()] when Target :: enum(),Pname :: enum().
 getBufferParameteri64v(Target,Pname) ->
   call(5584, <<Target:?GLenum,Pname:?GLenum>>).
@@ -12863,51 +5691,7 @@ getBufferParameteri64v(Target,Pname) ->
 %%  `Target'  must be `?GL_DRAW_FRAMEBUFFER', `?GL_READ_FRAMEBUFFER', or `?GL_FRAMEBUFFER'
 %% . `?GL_FRAMEBUFFER' is equivalent to `?GL_DRAW_FRAMEBUFFER'. 
 %%
-%%  `Attachment'  specifies the logical attachment of the framebuffer and must be `?GL_COLOR_ATTACHMENT'
-%% `i', `?GL_DEPTH_ATTACHMENT', `?GL_STENCIL_ATTACHMENT' or `?GL_DEPTH_STENCIL_ATTACHMMENT'
-%% . `i' in `?GL_COLOR_ATTACHMENT'`i' may range from zero to the value of `?GL_MAX_COLOR_ATTACHMENTS'
-%%  - 1. Attaching a level of a texture to `?GL_DEPTH_STENCIL_ATTACHMENT' is equivalent
-%% to attaching that level to both the `?GL_DEPTH_ATTACHMENT'`and' the `?GL_STENCIL_ATTACHMENT'
-%%  attachment points simultaneously. 
-%%
-%%  `Textarget'  specifies what type of texture is named by  `Texture' , and for cube
-%% map textures, specifies the face that is to be attached. If  `Texture'  is not zero,
-%% it must be the name of an existing texture with type  `Textarget' , unless it is a
-%% cube map texture, in which case  `Textarget'  must be `?GL_TEXTURE_CUBE_MAP_POSITIVE_X'
-%% `?GL_TEXTURE_CUBE_MAP_NEGATIVE_X', `?GL_TEXTURE_CUBE_MAP_POSITIVE_Y', `?GL_TEXTURE_CUBE_MAP_NEGATIVE_Y'
-%% , `?GL_TEXTURE_CUBE_MAP_POSITIVE_Z', or `?GL_TEXTURE_CUBE_MAP_NEGATIVE_Z'. 
-%%
-%%  If  `Texture'  is non-zero, the specified  `Level'  of the texture object named  `Texture' 
-%%  is attached to the framebfufer attachment point named by  `Attachment' . For ``gl:framebufferTexture1D''
-%% , ``gl:framebufferTexture2D'', and ``gl:framebufferTexture3D'',  `Texture'  must
-%% be zero or the name of an existing texture with a target of  `Textarget' , or  `Texture' 
-%%  must be the name of an existing cube-map texture and  `Textarget'  must be one of `?GL_TEXTURE_CUBE_MAP_POSITIVE_X'
-%% , `?GL_TEXTURE_CUBE_MAP_POSITIVE_Y', `?GL_TEXTURE_CUBE_MAP_POSITIVE_Z', `?GL_TEXTURE_CUBE_MAP_NEGATIVE_X'
-%% , `?GL_TEXTURE_CUBE_MAP_NEGATIVE_Y', or `?GL_TEXTURE_CUBE_MAP_NEGATIVE_Z'. 
-%%
-%%  If  `Textarget'  is `?GL_TEXTURE_RECTANGLE', `?GL_TEXTURE_2D_MULTISAMPLE',
-%% or `?GL_TEXTURE_2D_MULTISAMPLE_ARRAY', then  `Level'  must be zero. If  `Textarget' 
-%%  is `?GL_TEXTURE_3D', then level must be greater than or equal to zero and less than
-%% or equal to log2 of the value of `?GL_MAX_3D_TEXTURE_SIZE'. If  `Textarget'  is
-%% one of `?GL_TEXTURE_CUBE_MAP_POSITIVE_X', `?GL_TEXTURE_CUBE_MAP_POSITIVE_Y', `?GL_TEXTURE_CUBE_MAP_POSITIVE_Z'
-%% , `?GL_TEXTURE_CUBE_MAP_NEGATIVE_X', `?GL_TEXTURE_CUBE_MAP_NEGATIVE_Y', or `?GL_TEXTURE_CUBE_MAP_NEGATIVE_Z'
-%% , then  `Level'  must be greater than or equal to zero and less than or equal to log2
-%% of the value of `?GL_MAX_CUBE_MAP_TEXTURE_SIZE'. For all other values of  `Textarget' 
-%% ,  `Level'  must be greater than or equal to zero and no larger than log2 of the value
-%% of `?GL_MAX_TEXTURE_SIZE'. 
-%%
-%%  `Layer'  specifies the layer of a 2-dimensional image within a 3-dimensional texture.
-%% 
-%%
-%%  For ``gl:framebufferTexture1D'', if  `Texture'  is not zero, then  `Textarget' 
-%% must be `?GL_TEXTURE_1D'. For ``gl:framebufferTexture2D'', if  `Texture'  is
-%% not zero,  `Textarget'  must be one of `?GL_TEXTURE_2D', `?GL_TEXTURE_RECTANGLE'
-%% , `?GL_TEXTURE_CUBE_MAP_POSITIVE_X', `?GL_TEXTURE_CUBE_MAP_POSITIVE_Y', `?GL_TEXTURE_CUBE_MAP_POSITIVE_Z'
-%% , `?GL_TEXTURE_CUBE_MAP_NEGATIVE_X', `?GL_TEXTURE_CUBE_MAP_NEGATIVE_Y', `?GL_TEXTURE_CUBE_MAP_NEGATIVE_Z'
-%% , or `?GL_TEXTURE_2D_MULTISAMPLE'. For ``gl:framebufferTexture3D'', if  `Texture' 
-%%  is not zero, then  `Textarget'  must be `?GL_TEXTURE_3D'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFramebufferTexture.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glFramebufferTexture.xhtml">external</a> documentation.
 -spec framebufferTexture(Target, Attachment, Texture, Level) -> 'ok' when Target :: enum(),Attachment :: enum(),Texture :: integer(),Level :: integer().
 framebufferTexture(Target,Attachment,Texture,Level) ->
   cast(5585, <<Target:?GLenum,Attachment:?GLenum,Texture:?GLuint,Level:?GLint>>).
@@ -12921,9 +5705,7 @@ framebufferTexture(Target,Attachment,Texture,Level) ->
 %% vertices being rendered. An attribute is referred to as instanced if its `?GL_VERTEX_ATTRIB_ARRAY_DIVISOR'
 %%  value is non-zero. 
 %%
-%%  `Index'  must be less than the value of `?GL_MAX_VERTEX_ATTRIBUTES'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribDivisor.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glVertexAttribDivisor.xhtml">external</a> documentation.
 -spec vertexAttribDivisor(Index, Divisor) -> 'ok' when Index :: integer(),Divisor :: integer().
 vertexAttribDivisor(Index,Divisor) ->
   cast(5586, <<Index:?GLuint,Divisor:?GLuint>>).
@@ -12938,13 +5720,7 @@ vertexAttribDivisor(Index,Divisor) ->
 %%  is the value of `?GL_SAMPLES' for the current framebuffer. At least 1 sample for
 %% each covered fragment is generated. 
 %%
-%%  A  `Value'  of 1.0 indicates that each sample in the framebuffer should be indpendently
-%% shaded. A  `Value'  of 0.0 effectively allows the GL to ignore sample rate shading.
-%% Any value between 0.0 and 1.0 allows the GL to shade only a subset of the total samples
-%% within each covered fragment. Which samples are shaded and the algorithm used to select
-%% that subset of the fragment's samples is implementation dependent. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMinSampleShading.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glMinSampleShading.xhtml">external</a> documentation.
 -spec minSampleShading(Value) -> 'ok' when Value :: clamp().
 minSampleShading(Value) ->
   cast(5587, <<Value:?GLclampf>>).
@@ -12963,7 +5739,7 @@ blendEquationSeparatei(Buf,ModeRGB,ModeAlpha) ->
 
 %% @doc glBlendFunci
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBlendFunci.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec blendFunci(Buf, Src, Dst) -> 'ok' when Buf :: integer(),Src :: enum(),Dst :: enum().
 blendFunci(Buf,Src,Dst) ->
   cast(5590, <<Buf:?GLuint,Src:?GLenum,Dst:?GLenum>>).
@@ -12976,7 +5752,7 @@ blendFuncSeparatei(Buf,SrcRGB,DstRGB,SrcAlpha,DstAlpha) ->
 
 %% @doc glLoadTransposeMatrixARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLoadTransposeMatrixARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec loadTransposeMatrixfARB(M) -> 'ok' when M :: matrix().
 loadTransposeMatrixfARB({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16}) ->
   cast(5592, <<M1:?GLfloat,M2:?GLfloat,M3:?GLfloat,M4:?GLfloat,M5:?GLfloat,M6:?GLfloat,M7:?GLfloat,M8:?GLfloat,M9:?GLfloat,M10:?GLfloat,M11:?GLfloat,M12:?GLfloat,M13:?GLfloat,M14:?GLfloat,M15:?GLfloat,M16:?GLfloat>>);
@@ -12985,7 +5761,7 @@ loadTransposeMatrixfARB({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12}) ->
 
 %% @doc glLoadTransposeMatrixARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLoadTransposeMatrixARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec loadTransposeMatrixdARB(M) -> 'ok' when M :: matrix().
 loadTransposeMatrixdARB({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16}) ->
   cast(5593, <<M1:?GLdouble,M2:?GLdouble,M3:?GLdouble,M4:?GLdouble,M5:?GLdouble,M6:?GLdouble,M7:?GLdouble,M8:?GLdouble,M9:?GLdouble,M10:?GLdouble,M11:?GLdouble,M12:?GLdouble,M13:?GLdouble,M14:?GLdouble,M15:?GLdouble,M16:?GLdouble>>);
@@ -12994,7 +5770,7 @@ loadTransposeMatrixdARB({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12}) ->
 
 %% @doc glMultTransposeMatrixARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMultTransposeMatrixARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec multTransposeMatrixfARB(M) -> 'ok' when M :: matrix().
 multTransposeMatrixfARB({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16}) ->
   cast(5594, <<M1:?GLfloat,M2:?GLfloat,M3:?GLfloat,M4:?GLfloat,M5:?GLfloat,M6:?GLfloat,M7:?GLfloat,M8:?GLfloat,M9:?GLfloat,M10:?GLfloat,M11:?GLfloat,M12:?GLfloat,M13:?GLfloat,M14:?GLfloat,M15:?GLfloat,M16:?GLfloat>>);
@@ -13003,7 +5779,7 @@ multTransposeMatrixfARB({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12}) ->
 
 %% @doc glMultTransposeMatrixARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMultTransposeMatrixARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec multTransposeMatrixdARB(M) -> 'ok' when M :: matrix().
 multTransposeMatrixdARB({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16}) ->
   cast(5595, <<M1:?GLdouble,M2:?GLdouble,M3:?GLdouble,M4:?GLdouble,M5:?GLdouble,M6:?GLdouble,M7:?GLdouble,M8:?GLdouble,M9:?GLdouble,M10:?GLdouble,M11:?GLdouble,M12:?GLdouble,M13:?GLdouble,M14:?GLdouble,M15:?GLdouble,M16:?GLdouble>>);
@@ -13012,7 +5788,7 @@ multTransposeMatrixdARB({M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12}) ->
 
 %% @doc glWeightARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glWeightARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec weightbvARB(Weights) -> 'ok' when Weights :: [integer()].
 weightbvARB(Weights) ->
   WeightsLen = length(Weights),
@@ -13021,7 +5797,7 @@ weightbvARB(Weights) ->
 
 %% @doc glWeightARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glWeightARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec weightsvARB(Weights) -> 'ok' when Weights :: [integer()].
 weightsvARB(Weights) ->
   WeightsLen = length(Weights),
@@ -13030,7 +5806,7 @@ weightsvARB(Weights) ->
 
 %% @doc glWeightARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glWeightARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec weightivARB(Weights) -> 'ok' when Weights :: [integer()].
 weightivARB(Weights) ->
   WeightsLen = length(Weights),
@@ -13039,7 +5815,7 @@ weightivARB(Weights) ->
 
 %% @doc glWeightARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glWeightARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec weightfvARB(Weights) -> 'ok' when Weights :: [float()].
 weightfvARB(Weights) ->
   WeightsLen = length(Weights),
@@ -13048,7 +5824,7 @@ weightfvARB(Weights) ->
 
 %% @doc glWeightARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glWeightARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec weightdvARB(Weights) -> 'ok' when Weights :: [float()].
 weightdvARB(Weights) ->
   WeightsLen = length(Weights),
@@ -13057,7 +5833,7 @@ weightdvARB(Weights) ->
 
 %% @doc glWeightARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glWeightARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec weightubvARB(Weights) -> 'ok' when Weights :: [integer()].
 weightubvARB(Weights) ->
   WeightsLen = length(Weights),
@@ -13066,7 +5842,7 @@ weightubvARB(Weights) ->
 
 %% @doc glWeightARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glWeightARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec weightusvARB(Weights) -> 'ok' when Weights :: [integer()].
 weightusvARB(Weights) ->
   WeightsLen = length(Weights),
@@ -13075,7 +5851,7 @@ weightusvARB(Weights) ->
 
 %% @doc glWeightARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glWeightARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec weightuivARB(Weights) -> 'ok' when Weights :: [integer()].
 weightuivARB(Weights) ->
   WeightsLen = length(Weights),
@@ -13084,21 +5860,21 @@ weightuivARB(Weights) ->
 
 %% @doc glVertexBlenARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertexBlenARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec vertexBlendARB(Count) -> 'ok' when Count :: integer().
 vertexBlendARB(Count) ->
   cast(5604, <<Count:?GLint>>).
 
 %% @doc glCurrentPaletteMatrixARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCurrentPaletteMatrixARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec currentPaletteMatrixARB(Index) -> 'ok' when Index :: integer().
 currentPaletteMatrixARB(Index) ->
   cast(5605, <<Index:?GLint>>).
 
 %% @doc glMatrixIndexARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMatrixIndexARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec matrixIndexubvARB(Indices) -> 'ok' when Indices :: [integer()].
 matrixIndexubvARB(Indices) ->
   IndicesLen = length(Indices),
@@ -13107,7 +5883,7 @@ matrixIndexubvARB(Indices) ->
 
 %% @doc glMatrixIndexARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMatrixIndexARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec matrixIndexusvARB(Indices) -> 'ok' when Indices :: [integer()].
 matrixIndexusvARB(Indices) ->
   IndicesLen = length(Indices),
@@ -13116,7 +5892,7 @@ matrixIndexusvARB(Indices) ->
 
 %% @doc glMatrixIndexARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMatrixIndexARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec matrixIndexuivARB(Indices) -> 'ok' when Indices :: [integer()].
 matrixIndexuivARB(Indices) ->
   IndicesLen = length(Indices),
@@ -13125,7 +5901,7 @@ matrixIndexuivARB(Indices) ->
 
 %% @doc glProgramStringARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramStringARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec programStringARB(Target, Format, String) -> 'ok' when Target :: enum(),Format :: enum(),String :: string().
 programStringARB(Target,Format,String) ->
   StringLen = length(String),
@@ -13133,14 +5909,14 @@ programStringARB(Target,Format,String) ->
 
 %% @doc glBindProgramARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindProgramARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec bindProgramARB(Target, Program) -> 'ok' when Target :: enum(),Program :: integer().
 bindProgramARB(Target,Program) ->
   cast(5610, <<Target:?GLenum,Program:?GLuint>>).
 
 %% @doc glDeleteProgramsARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteProgramsARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec deleteProgramsARB(Programs) -> 'ok' when Programs :: [integer()].
 deleteProgramsARB(Programs) ->
   ProgramsLen = length(Programs),
@@ -13149,98 +5925,98 @@ deleteProgramsARB(Programs) ->
 
 %% @doc glGenProgramsARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenProgramsARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec genProgramsARB(N) -> [integer()] when N :: integer().
 genProgramsARB(N) ->
   call(5612, <<N:?GLsizei>>).
 
 %% @doc glProgramEnvParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramEnvParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec programEnvParameter4dARB(Target, Index, X, Y, Z, W) -> 'ok' when Target :: enum(),Index :: integer(),X :: float(),Y :: float(),Z :: float(),W :: float().
 programEnvParameter4dARB(Target,Index,X,Y,Z,W) ->
   cast(5613, <<Target:?GLenum,Index:?GLuint,X:?GLdouble,Y:?GLdouble,Z:?GLdouble,W:?GLdouble>>).
 
 %% @doc glProgramEnvParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramEnvParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec programEnvParameter4dvARB(Target, Index, Params) -> 'ok' when Target :: enum(),Index :: integer(),Params :: {float(),float(),float(),float()}.
 programEnvParameter4dvARB(Target,Index,{P1,P2,P3,P4}) ->
   cast(5614, <<Target:?GLenum,Index:?GLuint,P1:?GLdouble,P2:?GLdouble,P3:?GLdouble,P4:?GLdouble>>).
 
 %% @doc glProgramEnvParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramEnvParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec programEnvParameter4fARB(Target, Index, X, Y, Z, W) -> 'ok' when Target :: enum(),Index :: integer(),X :: float(),Y :: float(),Z :: float(),W :: float().
 programEnvParameter4fARB(Target,Index,X,Y,Z,W) ->
   cast(5615, <<Target:?GLenum,Index:?GLuint,X:?GLfloat,Y:?GLfloat,Z:?GLfloat,W:?GLfloat>>).
 
 %% @doc glProgramEnvParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramEnvParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec programEnvParameter4fvARB(Target, Index, Params) -> 'ok' when Target :: enum(),Index :: integer(),Params :: {float(),float(),float(),float()}.
 programEnvParameter4fvARB(Target,Index,{P1,P2,P3,P4}) ->
   cast(5616, <<Target:?GLenum,Index:?GLuint,P1:?GLfloat,P2:?GLfloat,P3:?GLfloat,P4:?GLfloat>>).
 
 %% @doc glProgramLocalParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramLocalParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec programLocalParameter4dARB(Target, Index, X, Y, Z, W) -> 'ok' when Target :: enum(),Index :: integer(),X :: float(),Y :: float(),Z :: float(),W :: float().
 programLocalParameter4dARB(Target,Index,X,Y,Z,W) ->
   cast(5617, <<Target:?GLenum,Index:?GLuint,X:?GLdouble,Y:?GLdouble,Z:?GLdouble,W:?GLdouble>>).
 
 %% @doc glProgramLocalParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramLocalParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec programLocalParameter4dvARB(Target, Index, Params) -> 'ok' when Target :: enum(),Index :: integer(),Params :: {float(),float(),float(),float()}.
 programLocalParameter4dvARB(Target,Index,{P1,P2,P3,P4}) ->
   cast(5618, <<Target:?GLenum,Index:?GLuint,P1:?GLdouble,P2:?GLdouble,P3:?GLdouble,P4:?GLdouble>>).
 
 %% @doc glProgramLocalParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramLocalParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec programLocalParameter4fARB(Target, Index, X, Y, Z, W) -> 'ok' when Target :: enum(),Index :: integer(),X :: float(),Y :: float(),Z :: float(),W :: float().
 programLocalParameter4fARB(Target,Index,X,Y,Z,W) ->
   cast(5619, <<Target:?GLenum,Index:?GLuint,X:?GLfloat,Y:?GLfloat,Z:?GLfloat,W:?GLfloat>>).
 
 %% @doc glProgramLocalParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramLocalParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec programLocalParameter4fvARB(Target, Index, Params) -> 'ok' when Target :: enum(),Index :: integer(),Params :: {float(),float(),float(),float()}.
 programLocalParameter4fvARB(Target,Index,{P1,P2,P3,P4}) ->
   cast(5620, <<Target:?GLenum,Index:?GLuint,P1:?GLfloat,P2:?GLfloat,P3:?GLfloat,P4:?GLfloat>>).
 
 %% @doc glGetProgramEnvParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetProgramEnvParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getProgramEnvParameterdvARB(Target, Index) -> {float(),float(),float(),float()} when Target :: enum(),Index :: integer().
 getProgramEnvParameterdvARB(Target,Index) ->
   call(5621, <<Target:?GLenum,Index:?GLuint>>).
 
 %% @doc glGetProgramEnvParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetProgramEnvParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getProgramEnvParameterfvARB(Target, Index) -> {float(),float(),float(),float()} when Target :: enum(),Index :: integer().
 getProgramEnvParameterfvARB(Target,Index) ->
   call(5622, <<Target:?GLenum,Index:?GLuint>>).
 
 %% @doc glGetProgramLocalParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetProgramLocalParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getProgramLocalParameterdvARB(Target, Index) -> {float(),float(),float(),float()} when Target :: enum(),Index :: integer().
 getProgramLocalParameterdvARB(Target,Index) ->
   call(5623, <<Target:?GLenum,Index:?GLuint>>).
 
 %% @doc glGetProgramLocalParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetProgramLocalParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getProgramLocalParameterfvARB(Target, Index) -> {float(),float(),float(),float()} when Target :: enum(),Index :: integer().
 getProgramLocalParameterfvARB(Target,Index) ->
   call(5624, <<Target:?GLenum,Index:?GLuint>>).
 
 %% @doc glGetProgramStringARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetProgramStringARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getProgramStringARB(Target, Pname, String) -> 'ok' when Target :: enum(),Pname :: enum(),String :: mem().
 getProgramStringARB(Target,Pname,String) ->
   send_bin(String),
@@ -13248,42 +6024,42 @@ getProgramStringARB(Target,Pname,String) ->
 
 %% @doc glGetBufferParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetBufferParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getBufferParameterivARB(Target, Pname) -> [integer()] when Target :: enum(),Pname :: enum().
 getBufferParameterivARB(Target,Pname) ->
   call(5626, <<Target:?GLenum,Pname:?GLenum>>).
 
 %% @doc glDeleteObjectARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteObjectARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec deleteObjectARB(Obj) -> 'ok' when Obj :: integer().
 deleteObjectARB(Obj) ->
   cast(5627, <<Obj:?GLhandleARB>>).
 
 %% @doc glGetHandleARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetHandleARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getHandleARB(Pname) -> integer() when Pname :: enum().
 getHandleARB(Pname) ->
   call(5628, <<Pname:?GLenum>>).
 
 %% @doc glDetachObjectARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDetachObjectARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec detachObjectARB(ContainerObj, AttachedObj) -> 'ok' when ContainerObj :: integer(),AttachedObj :: integer().
 detachObjectARB(ContainerObj,AttachedObj) ->
   cast(5629, <<ContainerObj:?GLhandleARB,AttachedObj:?GLhandleARB>>).
 
 %% @doc glCreateShaderObjectARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCreateShaderObjectARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec createShaderObjectARB(ShaderType) -> integer() when ShaderType :: enum().
 createShaderObjectARB(ShaderType) ->
   call(5630, <<ShaderType:?GLenum>>).
 
 %% @doc glShaderSourceARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glShaderSourceARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec shaderSourceARB(ShaderObj, String) -> 'ok' when ShaderObj :: integer(),String :: iolist().
 shaderSourceARB(ShaderObj,String) ->
   StringTemp = list_to_binary([[Str|[0]] || Str <- String ]),
@@ -13292,77 +6068,77 @@ shaderSourceARB(ShaderObj,String) ->
 
 %% @doc glCompileShaderARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCompileShaderARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec compileShaderARB(ShaderObj) -> 'ok' when ShaderObj :: integer().
 compileShaderARB(ShaderObj) ->
   cast(5632, <<ShaderObj:?GLhandleARB>>).
 
 %% @doc glCreateProgramObjectARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCreateProgramObjectARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec createProgramObjectARB() -> integer().
 createProgramObjectARB() ->
   call(5633, <<>>).
 
 %% @doc glAttachObjectARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glAttachObjectARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec attachObjectARB(ContainerObj, Obj) -> 'ok' when ContainerObj :: integer(),Obj :: integer().
 attachObjectARB(ContainerObj,Obj) ->
   cast(5634, <<ContainerObj:?GLhandleARB,Obj:?GLhandleARB>>).
 
 %% @doc glLinkProgramARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glLinkProgramARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec linkProgramARB(ProgramObj) -> 'ok' when ProgramObj :: integer().
 linkProgramARB(ProgramObj) ->
   cast(5635, <<ProgramObj:?GLhandleARB>>).
 
 %% @doc glUseProgramObjectARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glUseProgramObjectARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec useProgramObjectARB(ProgramObj) -> 'ok' when ProgramObj :: integer().
 useProgramObjectARB(ProgramObj) ->
   cast(5636, <<ProgramObj:?GLhandleARB>>).
 
 %% @doc glValidateProgramARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glValidateProgramARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec validateProgramARB(ProgramObj) -> 'ok' when ProgramObj :: integer().
 validateProgramARB(ProgramObj) ->
   cast(5637, <<ProgramObj:?GLhandleARB>>).
 
 %% @doc glGetObjectParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetObjectParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getObjectParameterfvARB(Obj, Pname) -> float() when Obj :: integer(),Pname :: enum().
 getObjectParameterfvARB(Obj,Pname) ->
   call(5638, <<Obj:?GLhandleARB,Pname:?GLenum>>).
 
 %% @doc glGetObjectParameterARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetObjectParameterARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getObjectParameterivARB(Obj, Pname) -> integer() when Obj :: integer(),Pname :: enum().
 getObjectParameterivARB(Obj,Pname) ->
   call(5639, <<Obj:?GLhandleARB,Pname:?GLenum>>).
 
 %% @doc glGetInfoLogARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetInfoLogARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getInfoLogARB(Obj, MaxLength) -> string() when Obj :: integer(),MaxLength :: integer().
 getInfoLogARB(Obj,MaxLength) ->
   call(5640, <<Obj:?GLhandleARB,MaxLength:?GLsizei>>).
 
 %% @doc glGetAttachedObjectsARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetAttachedObjectsARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getAttachedObjectsARB(ContainerObj, MaxCount) -> [integer()] when ContainerObj :: integer(),MaxCount :: integer().
 getAttachedObjectsARB(ContainerObj,MaxCount) ->
   call(5641, <<ContainerObj:?GLhandleARB,MaxCount:?GLsizei>>).
 
 %% @doc glGetUniformLocationARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocationARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getUniformLocationARB(ProgramObj, Name) -> integer() when ProgramObj :: integer(),Name :: string().
 getUniformLocationARB(ProgramObj,Name) ->
   NameLen = length(Name),
@@ -13370,35 +6146,35 @@ getUniformLocationARB(ProgramObj,Name) ->
 
 %% @doc glGetActiveUniformARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetActiveUniformARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getActiveUniformARB(ProgramObj, Index, MaxLength) -> {Size :: integer(),Type :: enum(),Name :: string()} when ProgramObj :: integer(),Index :: integer(),MaxLength :: integer().
 getActiveUniformARB(ProgramObj,Index,MaxLength) ->
   call(5643, <<ProgramObj:?GLhandleARB,Index:?GLuint,MaxLength:?GLsizei>>).
 
 %% @doc glGetUniformARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getUniformfvARB(ProgramObj, Location) -> matrix() when ProgramObj :: integer(),Location :: integer().
 getUniformfvARB(ProgramObj,Location) ->
   call(5644, <<ProgramObj:?GLhandleARB,Location:?GLint>>).
 
 %% @doc glGetUniformARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getUniformivARB(ProgramObj, Location) -> {integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer()} when ProgramObj :: integer(),Location :: integer().
 getUniformivARB(ProgramObj,Location) ->
   call(5645, <<ProgramObj:?GLhandleARB,Location:?GLint>>).
 
 %% @doc glGetShaderSourceARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetShaderSourceARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getShaderSourceARB(Obj, MaxLength) -> string() when Obj :: integer(),MaxLength :: integer().
 getShaderSourceARB(Obj,MaxLength) ->
   call(5646, <<Obj:?GLhandleARB,MaxLength:?GLsizei>>).
 
 %% @doc glBindAttribLocationARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindAttribLocationARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec bindAttribLocationARB(ProgramObj, Index, Name) -> 'ok' when ProgramObj :: integer(),Index :: integer(),Name :: string().
 bindAttribLocationARB(ProgramObj,Index,Name) ->
   NameLen = length(Name),
@@ -13406,14 +6182,14 @@ bindAttribLocationARB(ProgramObj,Index,Name) ->
 
 %% @doc glGetActiveAttribARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetActiveAttribARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getActiveAttribARB(ProgramObj, Index, MaxLength) -> {Size :: integer(),Type :: enum(),Name :: string()} when ProgramObj :: integer(),Index :: integer(),MaxLength :: integer().
 getActiveAttribARB(ProgramObj,Index,MaxLength) ->
   call(5648, <<ProgramObj:?GLhandleARB,Index:?GLuint,MaxLength:?GLsizei>>).
 
 %% @doc glGetAttribLocationARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocationARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getAttribLocationARB(ProgramObj, Name) -> integer() when ProgramObj :: integer(),Name :: string().
 getAttribLocationARB(ProgramObj,Name) ->
   NameLen = length(Name),
@@ -13429,7 +6205,7 @@ getAttribLocationARB(ProgramObj,Name) ->
 %% , then the name is not a renderbuffer object and ``gl:isRenderbuffer'' returns `?GL_FALSE'
 %% . 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsRenderbuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsRenderbuffer.xhtml">external</a> documentation.
 -spec isRenderbuffer(Renderbuffer) -> 0|1 when Renderbuffer :: integer().
 isRenderbuffer(Renderbuffer) ->
   call(5650, <<Renderbuffer:?GLuint>>).
@@ -13442,7 +6218,7 @@ isRenderbuffer(Renderbuffer) ->
 %% call to  {@link gl:genRenderbuffers/1} , or zero to break the existing binding of a renderbuffer
 %% object to  `Target' . 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindRenderbuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindRenderbuffer.xhtml">external</a> documentation.
 -spec bindRenderbuffer(Target, Renderbuffer) -> 'ok' when Target :: enum(),Renderbuffer :: integer().
 bindRenderbuffer(Target,Renderbuffer) ->
   cast(5651, <<Target:?GLenum,Renderbuffer:?GLuint>>).
@@ -13457,14 +6233,7 @@ bindRenderbuffer(Target,Renderbuffer) ->
 %% it is as though  {@link gl:bindRenderbuffer/2}  had been executed with a  `Target'  of `?GL_RENDERBUFFER'
 %%  and a  `Name'  of zero. 
 %%
-%%  If a renderbuffer object is attached to one or more attachment points in the currently
-%% bound framebuffer, then it as if  {@link gl:framebufferRenderbuffer/4}  had been called,
-%% with a  `Renderbuffer'  of zero for each attachment point to which this image was attached
-%% in the currently bound framebuffer. In other words, this renderbuffer object is first
-%% detached from all attachment ponits in the currently bound framebuffer. Note that the
-%% renderbuffer image is specifically `not' detached from any non-bound framebuffers. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteRenderbuffers.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteRenderbuffers.xhtml">external</a> documentation.
 -spec deleteRenderbuffers(Renderbuffers) -> 'ok' when Renderbuffers :: [integer()].
 deleteRenderbuffers(Renderbuffers) ->
   RenderbuffersLen = length(Renderbuffers),
@@ -13478,13 +6247,7 @@ deleteRenderbuffers(Renderbuffers) ->
 %% is guaranteed that none of the returned names was in use immediately before the call to ``gl:genRenderbuffers''
 %% . 
 %%
-%%  Renderbuffer object names returned by a call to ``gl:genRenderbuffers'' are not returned
-%% by subsequent calls, unless they are first deleted with  {@link gl:deleteRenderbuffers/1} . 
-%%
-%%  The names returned in  `Renderbuffers'  are marked as used, for the purposes of ``gl:genRenderbuffers''
-%%  only, but they acquire state and type only when they are first bound. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenRenderbuffers.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGenRenderbuffers.xhtml">external</a> documentation.
 -spec genRenderbuffers(N) -> [integer()] when N :: integer().
 genRenderbuffers(N) ->
   call(5653, <<N:?GLsizei>>).
@@ -13494,18 +6257,7 @@ genRenderbuffers(N) ->
 %% ``gl:renderbufferStorage'' is equivalent to calling  {@link gl:renderbufferStorageMultisample/5} 
 %%  with the  `Samples'  set to zero. 
 %%
-%%  The target of the operation, specified by  `Target'  must be `?GL_RENDERBUFFER'.
-%%  `Internalformat'  specifies the internal format to be used for the renderbuffer object's
-%% storage and must be a color-renderable, depth-renderable, or stencil-renderable format.  `Width' 
-%%  and  `Height'  are the dimensions, in pixels, of the renderbuffer. Both  `Width' 
-%% and  `Height'  must be less than or equal to the value of `?GL_MAX_RENDERBUFFER_SIZE'
-%% . 
-%%
-%%  Upon success, ``gl:renderbufferStorage'' deletes any existing data store for the renderbuffer
-%% image and the contents of the data store after calling ``gl:renderbufferStorage'' are
-%% undefined. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glRenderbufferStorage.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glRenderbufferStorage.xhtml">external</a> documentation.
 -spec renderbufferStorage(Target, Internalformat, Width, Height) -> 'ok' when Target :: enum(),Internalformat :: enum(),Width :: integer(),Height :: integer().
 renderbufferStorage(Target,Internalformat,Width,Height) ->
   cast(5654, <<Target:?GLenum,Internalformat:?GLenum,Width:?GLsizei,Height:?GLsizei>>).
@@ -13520,20 +6272,7 @@ renderbufferStorage(Target,Internalformat,Width,Height) ->
 %% , `?GL_RENDERBUFFER_DEPTH_SIZE', `?GL_RENDERBUFFER_DEPTH_SIZE', `?GL_RENDERBUFFER_STENCIL_SIZE'
 %% , or `?GL_RENDERBUFFER_SAMPLES'. 
 %%
-%%  Upon a successful return from ``gl:getRenderbufferParameteriv'', if  `Pname'  is `?GL_RENDERBUFFER_WIDTH'
-%% , `?GL_RENDERBUFFER_HEIGHT', `?GL_RENDERBUFFER_INTERNAL_FORMAT', or `?GL_RENDERBUFFER_SAMPLES'
-%% , then  `Params'  will contain the width in pixels, the height in pixels, the internal
-%% format, or the number of samples, respectively, of the image of the renderbuffer currently
-%% bound to  `Target' . 
-%%
-%%  If  `Pname'  is `?GL_RENDERBUFFER_RED_SIZE', `?GL_RENDERBUFFER_GREEN_SIZE',
-%% `?GL_RENDERBUFFER_BLUE_SIZE', `?GL_RENDERBUFFER_ALPHA_SIZE', `?GL_RENDERBUFFER_DEPTH_SIZE'
-%% , or `?GL_RENDERBUFFER_STENCIL_SIZE', then  `Params'  will contain the actual
-%% resolutions (not the resolutions specified when the image array was defined) for the red,
-%% green, blue, alpha depth, or stencil components, respectively, of the image of the renderbuffer
-%% currently bound to  `Target' . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetRenderbufferParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetRenderbufferParameter.xhtml">external</a> documentation.
 -spec getRenderbufferParameteriv(Target, Pname) -> integer() when Target :: enum(),Pname :: enum().
 getRenderbufferParameteriv(Target,Pname) ->
   call(5655, <<Target:?GLenum,Pname:?GLenum>>).
@@ -13547,7 +6286,7 @@ getRenderbufferParameteriv(Target,Pname) ->
 %% , by that has not yet been bound through a call to  {@link gl:bindFramebuffer/2} , then the
 %% name is not a framebuffer object and ``gl:isFramebuffer'' returns `?GL_FALSE'. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsFramebuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsFramebuffer.xhtml">external</a> documentation.
 -spec isFramebuffer(Framebuffer) -> 0|1 when Framebuffer :: integer().
 isFramebuffer(Framebuffer) ->
   call(5656, <<Framebuffer:?GLuint>>).
@@ -13565,7 +6304,7 @@ isFramebuffer(Framebuffer) ->
 %% a call to  {@link gl:genFramebuffers/1} , or zero to break the existing binding of a framebuffer
 %% object to  `Target' . 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindFramebuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindFramebuffer.xhtml">external</a> documentation.
 -spec bindFramebuffer(Target, Framebuffer) -> 'ok' when Target :: enum(),Framebuffer :: integer().
 bindFramebuffer(Target,Framebuffer) ->
   cast(5657, <<Target:?GLenum,Framebuffer:?GLuint>>).
@@ -13580,7 +6319,7 @@ bindFramebuffer(Target,Framebuffer) ->
 %%  or `?GL_READ_FRAMEBUFFER' is deleted, it is as though  {@link gl:bindFramebuffer/2} 
 %% had been executed with the corresponding  `Target'  and  `Framebuffer'  zero. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteFramebuffers.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteFramebuffers.xhtml">external</a> documentation.
 -spec deleteFramebuffers(Framebuffers) -> 'ok' when Framebuffers :: [integer()].
 deleteFramebuffers(Framebuffers) ->
   FramebuffersLen = length(Framebuffers),
@@ -13594,13 +6333,7 @@ deleteFramebuffers(Framebuffers) ->
 %% that none of the returned names was in use immediately before the call to ``gl:genFramebuffers''
 %% . 
 %%
-%%  Framebuffer object names returned by a call to ``gl:genFramebuffers'' are not returned
-%% by subsequent calls, unless they are first deleted with  {@link gl:deleteFramebuffers/1} . 
-%%
-%%  The names returned in  `Ids'  are marked as used, for the purposes of ``gl:genFramebuffers''
-%%  only, but they acquire state and type only when they are first bound. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenFramebuffers.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGenFramebuffers.xhtml">external</a> documentation.
 -spec genFramebuffers(N) -> [integer()] when N :: integer().
 genFramebuffers(N) ->
   call(5659, <<N:?GLsizei>>).
@@ -13612,46 +6345,7 @@ genFramebuffers(N) ->
 %%  or `?GL_FRAMEBUFFER'. `?GL_FRAMEBUFFER' is equivalent to `?GL_DRAW_FRAMEBUFFER'
 %% . 
 %%
-%%  The return value is `?GL_FRAMEBUFFER_COMPLETE' if the framebuffer bound to  `Target' 
-%%  is complete. Otherwise, the return value is determined as follows: 
-%%
-%% `?GL_FRAMEBUFFER_UNDEFINED' is returned if  `Target'  is the default framebuffer,
-%% but the default framebuffer does not exist. 
-%%
-%% `?GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT' is returned if any of the framebuffer attachment
-%% points are framebuffer incomplete. 
-%%
-%% `?GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT' is returned if the framebuffer does
-%% not have at least one image attached to it. 
-%%
-%% `?GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER' is returned if the value of `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE'
-%%  is `?GL_NONE' for any color attachment point(s) named by `?GL_DRAWBUFFERi'. 
-%%
-%% `?GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER' is returned if `?GL_READ_BUFFER' is
-%% not `?GL_NONE' and the value of `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE' is `?GL_NONE'
-%%  for the color attachment point named by `?GL_READ_BUFFER'. 
-%%
-%% `?GL_FRAMEBUFFER_UNSUPPORTED' is returned if the combination of internal formats
-%% of the attached images violates an implementation-dependent set of restrictions. 
-%%
-%% `?GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE' is returned if the value of `?GL_RENDERBUFFER_SAMPLES'
-%%  is not the same for all attached renderbuffers; if the value of `?GL_TEXTURE_SAMPLES'
-%%  is the not same for all attached textures; or, if the attached images are a mix of renderbuffers
-%% and textures, the value of `?GL_RENDERBUFFER_SAMPLES' does not match the value of `?GL_TEXTURE_SAMPLES'
-%% . 
-%%
-%% `?GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE' is also returned if the value of `?GL_TEXTURE_FIXED_SAMPLE_LOCATIONS'
-%%  is not the same for all attached textures; or, if the attached images are a mix of renderbuffers
-%% and textures, the value of `?GL_TEXTURE_FIXED_SAMPLE_LOCATIONS' is not `?GL_TRUE'
-%%  for all attached textures. 
-%%
-%% `?GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS' is returned if any framebuffer attachment
-%% is layered, and any populated attachment is not layered, or if all populated color attachments
-%% are not from textures of the same target. 
-%%
-%%  Additionally, if an error occurs, zero is returned. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCheckFramebufferStatus.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCheckFramebufferStatus.xhtml">external</a> documentation.
 -spec checkFramebufferStatus(Target) -> enum() when Target :: enum().
 checkFramebufferStatus(Target) ->
   call(5660, <<Target:?GLenum>>).
@@ -13684,24 +6378,7 @@ framebufferTexture3D(Target,Attachment,Textarget,Texture,Level,Zoffset) ->
 %% buffer identified by  `Attachment'  of the framebuffer currently bound to  `Target' .
 %% 
 %%
-%%  The value of `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE' for the specified attachment
-%% point is set to `?GL_RENDERBUFFER' and the value of `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME'
-%%  is set to  `Renderbuffer' . All other state values of the attachment point specified
-%% by  `Attachment'  are set to their default values. No change is made to the state of
-%% the renderbuuffer object and any previous attachment to the  `Attachment'  logical
-%% buffer of the framebuffer  `Target'  is broken. 
-%%
-%%  Calling ``gl:framebufferRenderbuffer'' with the renderbuffer name zero will detach
-%% the image, if any, identified by  `Attachment' , in the framebuffer currently bound
-%% to  `Target' . All state values of the attachment point specified by attachment in
-%% the object bound to target are set to their default values. 
-%%
-%%  Setting  `Attachment'  to the value `?GL_DEPTH_STENCIL_ATTACHMENT' is a special
-%% case causing both the depth and stencil attachments of the framebuffer object to be set
-%% to  `Renderbuffer' , which should have the base internal format `?GL_DEPTH_STENCIL'
-%% . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFramebufferRenderbuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glFramebufferRenderbuffer.xhtml">external</a> documentation.
 -spec framebufferRenderbuffer(Target, Attachment, Renderbuffertarget, Renderbuffer) -> 'ok' when Target :: enum(),Attachment :: enum(),Renderbuffertarget :: enum(),Renderbuffer :: integer().
 framebufferRenderbuffer(Target,Attachment,Renderbuffertarget,Renderbuffer) ->
   cast(5664, <<Target:?GLenum,Attachment:?GLenum,Renderbuffertarget:?GLenum,Renderbuffer:?GLuint>>).
@@ -13713,91 +6390,7 @@ framebufferRenderbuffer(Target,Attachment,Renderbuffertarget,Renderbuffer) ->
 %% be `?GL_DRAW_FRAMEBUFFER', `?GL_READ_FRAMEBUFFER' or `?GL_FRAMEBUFFER'. `?GL_FRAMEBUFFER'
 %%  is equivalent to `?GL_DRAW_FRAMEBUFFER'. 
 %%
-%%  If the default framebuffer is bound to  `Target'  then  `Attachment'  must be one
-%% of `?GL_FRONT_LEFT', `?GL_FRONT_RIGHT', `?GL_BACK_LEFT', or `?GL_BACK_RIGHT'
-%% , identifying a color buffer, `?GL_DEPTH', identifying the depth buffer, or `?GL_STENCIL'
-%% , identifying the stencil buffer. 
-%%
-%%  If a framebuffer object is bound, then  `Attachment'  must be one of `?GL_COLOR_ATTACHMENT'
-%% `i', `?GL_DEPTH_ATTACHMENT', `?GL_STENCIL_ATTACHMENT', or `?GL_DEPTH_STENCIL_ATTACHMENT'
-%% . `i' in `?GL_COLOR_ATTACHMENT'`i' must be in the range zero to the value
-%% of `?GL_MAX_COLOR_ATTACHMENTS' - 1. 
-%%
-%%  If  `Attachment'  is `?GL_DEPTH_STENCIL_ATTACHMENT' and different objects are
-%% bound to the depth and stencil attachment points of  `Target'  the query will fail.
-%% If the same object is bound to both attachment points, information about that object will
-%% be returned. 
-%%
-%%  Upon successful return from ``gl:getFramebufferAttachmentParameteriv'', if  `Pname' 
-%% is `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE', then  `Params'  will contain one of `?GL_NONE'
-%% , `?GL_FRAMEBUFFER_DEFAULT', `?GL_TEXTURE', or `?GL_RENDERBUFFER', identifying
-%% the type of object which contains the attached image. Other values accepted for  `Pname' 
-%%  depend on the type of object, as described below. 
-%%
-%%  If the value of `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE' is `?GL_NONE', no
-%% framebuffer is bound to  `Target' . In this case querying  `Pname' `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME'
-%%  will return zero, and all other queries will generate an error. 
-%%
-%%  If the value of `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE' is not `?GL_NONE',
-%% these queries apply to all other framebuffer types: 
-%%
-%%  If  `Pname'  is `?GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE', `?GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE'
-%% , `?GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE', `?GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE'
-%% , `?GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE', or `?GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE'
-%% , then  `Params'  will contain the number of bits in the corresponding red, green,
-%% blue, alpha, depth, or stencil component of the specified attachment. Zero is returned
-%% if the requested component is not present in  `Attachment' . 
-%%
-%%  If  `Pname'  is `?GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE',  `Params'  will
-%% contain the format of components of the specified attachment, one of `?GL_FLOAT',  `GL_INT' 
-%% ,  `GL_UNSIGNED_INT' ,  `GL_SIGNED_NORMALIZED' , or  `GL_UNSIGNED_NORMALIZED' 
-%% for floating-point, signed integer, unsigned integer, signed normalized fixed-point, or
-%% unsigned normalized fixed-point components respectively. Only color buffers may have integer
-%% components. 
-%%
-%%  If  `Pname'  is `?GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING',  `Param'  will
-%% contain the encoding of components of the specified attachment, one of `?GL_LINEAR'
-%% or `?GL_SRGB' for linear or sRGB-encoded components, respectively. Only color buffer
-%% components may be sRGB-encoded; such components are treated as described in sections 4.1.7
-%% and 4.1.8. For the default framebuffer, color encoding is determined by the implementation.
-%% For framebuffer objects, components are sRGB-encoded if the internal format of a color
-%% attachment is one of the color-renderable SRGB formats. 
-%%
-%%  If the value of `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE' is `?GL_RENDERBUFFER',
-%% then: 
-%%
-%%  If  `Pname'  is `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME',  `Params'  will
-%% contain the name of the renderbuffer object which contains the attached image. 
-%%
-%%  If the value of `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE' is `?GL_TEXTURE',
-%% then: 
-%%
-%%  If  `Pname'  is `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME', then  `Params' 
-%% will contain the name of the texture object which contains the attached image. 
-%%
-%%  If  `Pname'  is `?GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL', then  `Params' 
-%% will contain the mipmap level of the texture object which contains the attached image. 
-%%
-%%  If  `Pname'  is `?GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE' and the texture
-%% object named `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME' is a cube map texture, then  `Params' 
-%%  will contain the cube map face of the cubemap texture object which contains the attached
-%% image. Otherwise  `Params'  will contain the value zero. 
-%%
-%%  If  `Pname'  is `?GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER' and the texture object
-%% named `?GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME' is a layer of a three-dimensional
-%% texture or a one-or two-dimensional array texture, then  `Params'  will contain the
-%% number of the texture layer which contains the attached image. Otherwise  `Params' 
-%% will contain the value zero. 
-%%
-%%  If  `Pname'  is `?GL_FRAMEBUFFER_ATTACHMENT_LAYERED', then  `Params'  will
-%% contain `?GL_TRUE' if an entire level of a three-dimesional texture, cube map texture,
-%% or one-or two-dimensional array texture is attached. Otherwise,  `Params'  will contain
-%% `?GL_FALSE'. 
-%%
-%%  Any combinations of framebuffer type and  `Pname'  not described above will generate
-%% an error. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetFramebufferAttachmentParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetFramebufferAttachmentParameter.xhtml">external</a> documentation.
 -spec getFramebufferAttachmentParameteriv(Target, Attachment, Pname) -> integer() when Target :: enum(),Attachment :: enum(),Pname :: enum().
 getFramebufferAttachmentParameteriv(Target,Attachment,Pname) ->
   call(5665, <<Target:?GLenum,Attachment:?GLenum,Pname:?GLenum>>).
@@ -13808,16 +6401,7 @@ getFramebufferAttachmentParameteriv(Target,Attachment,Pname) ->
 %% the active texture unit. For cube map textures, a `?GL_INVALID_OPERATION' error is
 %% generated if the texture attached to  `Target'  is not cube complete. 
 %%
-%%  Mipmap generation replaces texel array levels  level base+1 through  q with arrays derived
-%% from the  level base array, regardless of their previous contents. All other mimap arrays,
-%% including the  level base array, are left unchanged by this computation. 
-%%
-%%  The internal formats of the derived mipmap arrays all match those of the  level base
-%% array. The contents of the derived arrays are computed by repeated, filtered reduction
-%% of the  level base array. For one- and two-dimensional texture arrays, each layer is filtered
-%% independently. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenerateMipmap.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGenerateMipmap.xhtml">external</a> documentation.
 -spec generateMipmap(Target) -> 'ok' when Target :: enum().
 generateMipmap(Target) ->
   cast(5666, <<Target:?GLenum>>).
@@ -13833,33 +6417,7 @@ generateMipmap(Target) ->
 %% by the locations ( `DstX0' ;  `DstY0' ) and ( `DstX1' ;  `DstY1' ). The lower
 %% bounds of the rectangle are inclusive, while the upper bounds are exclusive. 
 %%
-%%  The actual region taken from the read framebuffer is limited to the intersection of the
-%% source buffers being transferred, which may include the color buffer selected by the read
-%% buffer, the depth buffer, and/or the stencil buffer depending on mask. The actual region
-%% written to the draw framebuffer is limited to the intersection of the destination buffers
-%% being written, which may include multiple draw buffers, the depth buffer, and/or the stencil
-%% buffer depending on mask. Whether or not the source or destination regions are altered
-%% due to these limits, the scaling and offset applied to pixels being transferred is performed
-%% as though no such limits were present. 
-%%
-%%  If the sizes of the source and destination rectangles are not equal,  `Filter'  specifies
-%% the interpolation method that will be applied to resize the source image , and must be `?GL_NEAREST'
-%%  or `?GL_LINEAR'. `?GL_LINEAR' is only a valid interpolation method for the
-%% color buffer. If  `Filter'  is not `?GL_NEAREST' and  `Mask'  includes `?GL_DEPTH_BUFFER_BIT'
-%%  or `?GL_STENCIL_BUFFER_BIT', no data is transferred and a `?GL_INVALID_OPERATION'
-%%  error is generated. 
-%%
-%%  If  `Filter'  is `?GL_LINEAR' and the source rectangle would require sampling
-%% outside the bounds of the source framebuffer, values are read as if the `?GL_CLAMP_TO_EDGE'
-%%  texture wrapping mode were applied. 
-%%
-%%  When the color buffer is transferred, values are taken from the read buffer of the read
-%% framebuffer and written to each of the draw buffers of the draw framebuffer. 
-%%
-%%  If the source and destination rectangles overlap or are the same, and the read and draw
-%% buffers are the same, the result of the operation is undefined. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBlitFramebuffer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBlitFramebuffer.xhtml">external</a> documentation.
 -spec blitFramebuffer(SrcX0, SrcY0, SrcX1, SrcY1, DstX0, DstY0, DstX1, DstY1, Mask, Filter) -> 'ok' when SrcX0 :: integer(),SrcY0 :: integer(),SrcX1 :: integer(),SrcY1 :: integer(),DstX0 :: integer(),DstY0 :: integer(),DstX1 :: integer(),DstY1 :: integer(),Mask :: integer(),Filter :: enum().
 blitFramebuffer(SrcX0,SrcY0,SrcX1,SrcY1,DstX0,DstY0,DstX1,DstY1,Mask,Filter) ->
   cast(5667, <<SrcX0:?GLint,SrcY0:?GLint,SrcX1:?GLint,SrcY1:?GLint,DstX0:?GLint,DstY0:?GLint,DstX1:?GLint,DstY1:?GLint,Mask:?GLbitfield,Filter:?GLenum>>).
@@ -13869,21 +6427,7 @@ blitFramebuffer(SrcX0,SrcY0,SrcX1,SrcY1,DstX0,DstY0,DstX1,DstY1,Mask,Filter) ->
 %% ``gl:renderbufferStorageMultisample'' establishes the data storage, format, dimensions
 %% and number of samples of a renderbuffer object's image. 
 %%
-%%  The target of the operation, specified by  `Target'  must be `?GL_RENDERBUFFER'.
-%%  `Internalformat'  specifies the internal format to be used for the renderbuffer object's
-%% storage and must be a color-renderable, depth-renderable, or stencil-renderable format.  `Width' 
-%%  and  `Height'  are the dimensions, in pixels, of the renderbuffer. Both  `Width' 
-%% and  `Height'  must be less than or equal to the value of `?GL_MAX_RENDERBUFFER_SIZE'
-%% .  `Samples'  specifies the number of samples to be used for the renderbuffer object's
-%% image, and must be less than or equal to the value of `?GL_MAX_SAMPLES'. If  `Internalformat' 
-%%  is a signed or unsigned integer format then  `Samples'  must be less than or equal
-%% to the value of `?GL_MAX_INTEGER_SAMPLES'. 
-%%
-%%  Upon success, ``gl:renderbufferStorageMultisample'' deletes any existing data store
-%% for the renderbuffer image and the contents of the data store after calling ``gl:renderbufferStorageMultisample''
-%%  are undefined. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glRenderbufferStorageMultisample.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glRenderbufferStorageMultisample.xhtml">external</a> documentation.
 -spec renderbufferStorageMultisample(Target, Samples, Internalformat, Width, Height) -> 'ok' when Target :: enum(),Samples :: integer(),Internalformat :: enum(),Width :: integer(),Height :: integer().
 renderbufferStorageMultisample(Target,Samples,Internalformat,Width,Height) ->
   cast(5668, <<Target:?GLenum,Samples:?GLsizei,Internalformat:?GLenum,Width:?GLsizei,Height:?GLsizei>>).
@@ -13909,7 +6453,7 @@ framebufferTextureFaceARB(Target,Attachment,Texture,Level,Face) ->
 %% mapped range of the buffer. ``gl:flushMappedBufferRange'' may be called multiple times
 %% to indicate distinct subranges of the mapping which require flushing. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFlushMappedBufferRange.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glFlushMappedBufferRange.xhtml">external</a> documentation.
 -spec flushMappedBufferRange(Target, Offset, Length) -> 'ok' when Target :: enum(),Offset :: integer(),Length :: integer().
 flushMappedBufferRange(Target,Offset,Length) ->
   cast(5671, <<Target:?GLenum,0:32,Offset:?GLintptr,Length:?GLsizeiptr>>).
@@ -13920,11 +6464,7 @@ flushMappedBufferRange(Target,Offset,Length) ->
 %%  is the name of a vertex array object previously returned from a call to  {@link gl:genVertexArrays/1} 
 %% , or zero to break the existing vertex array object binding. 
 %%
-%%  If no vertex array object with name  `Array'  exists, one is created when  `Array' 
-%% is first bound. If the bind is successful no change is made to the state of the vertex
-%% array object, and any previous vertex array object binding is broken. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindVertexArray.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindVertexArray.xhtml">external</a> documentation.
 -spec bindVertexArray(Array) -> 'ok' when Array :: integer().
 bindVertexArray(Array) ->
   cast(5672, <<Array:?GLuint>>).
@@ -13937,7 +6477,7 @@ bindVertexArray(Array) ->
 %% is deleted, the binding for that object reverts to zero and the default vertex array becomes
 %% current. Unused names in  `Arrays'  are silently ignored, as is the value zero. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteVertexArrays.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteVertexArrays.xhtml">external</a> documentation.
 -spec deleteVertexArrays(Arrays) -> 'ok' when Arrays :: [integer()].
 deleteVertexArrays(Arrays) ->
   ArraysLen = length(Arrays),
@@ -13951,13 +6491,7 @@ deleteVertexArrays(Arrays) ->
 %% guaranteed that none of the returned names was in use immediately before the call to ``gl:genVertexArrays''
 %% . 
 %%
-%%  Vertex array object names returned by a call to ``gl:genVertexArrays'' are not returned
-%% by subsequent calls, unless they are first deleted with  {@link gl:deleteVertexArrays/1} . 
-%%
-%%  The names returned in  `Arrays'  are marked as used, for the purposes of ``gl:genVertexArrays''
-%%  only, but they acquire state and type only when they are first bound. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenVertexArrays.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGenVertexArrays.xhtml">external</a> documentation.
 -spec genVertexArrays(N) -> [integer()] when N :: integer().
 genVertexArrays(N) ->
   call(5674, <<N:?GLsizei>>).
@@ -13971,7 +6505,7 @@ genVertexArrays(N) ->
 %% been bound through a call to  {@link gl:bindVertexArray/1} , then the name is not a vertex
 %% array object and ``gl:isVertexArray'' returns `?GL_FALSE'. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsVertexArray.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsVertexArray.xhtml">external</a> documentation.
 -spec isVertexArray(Array) -> 0|1 when Array :: integer().
 isVertexArray(Array) ->
   call(5675, <<Array:?GLuint>>).
@@ -13981,24 +6515,7 @@ isVertexArray(Array) ->
 %% ``gl:getUniformIndices'' retrieves the indices of a number of uniforms within  `Program' 
 %% . 
 %%
-%%  `Program'  must be the name of a program object for which the command  {@link gl:linkProgram/1} 
-%%  must have been called in the past, although it is not required that  {@link gl:linkProgram/1} 
-%%  must have succeeded. The link could have failed because the number of active uniforms
-%% exceeded the limit. 
-%%
-%%  `UniformCount'  indicates both the number of elements in the array of names  `UniformNames' 
-%%  and the number of indices that may be written to  `UniformIndices' . 
-%%
-%%  `UniformNames'  contains a list of  `UniformCount'  name strings identifying the
-%% uniform names to be queried for indices. For each name string in  `UniformNames' ,
-%% the index assigned to the active uniform of that name will be written to the corresponding
-%% element of  `UniformIndices' . If a string in  `UniformNames'  is not the name of
-%% an active uniform, the special value `?GL_INVALID_INDEX' will be written to the corresponding
-%% element of  `UniformIndices' . 
-%%
-%%  If an error occurs, nothing is written to  `UniformIndices' . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformIndices.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetUniformIndices.xhtml">external</a> documentation.
 -spec getUniformIndices(Program, UniformNames) -> [integer()] when Program :: integer(),UniformNames :: iolist().
 getUniformIndices(Program,UniformNames) ->
   UniformNamesTemp = list_to_binary([[Str|[0]] || Str <- UniformNames ]),
@@ -14007,7 +6524,7 @@ getUniformIndices(Program,UniformNames) ->
 
 %% @doc glGetActiveUniforms
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetActiveUniforms.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getActiveUniformsiv(Program, UniformIndices, Pname) -> [integer()] when Program :: integer(),UniformIndices :: [integer()],Pname :: enum().
 getActiveUniformsiv(Program,UniformIndices,Pname) ->
   UniformIndicesLen = length(UniformIndices),
@@ -14026,19 +6543,7 @@ getActiveUniformsiv(Program,UniformIndices,Pname) ->
 %% is given by the value of `?GL_ACTIVE_UNIFORM_MAX_LENGTH', which can be queried with  {@link gl:getProgramiv/2} 
 %% . 
 %%
-%%  If ``gl:getActiveUniformName'' is not successful, nothing is written to  `Length' 
-%% or  `UniformName' . 
-%%
-%%  `Program'  must be the name of a program for which the command  {@link gl:linkProgram/1} 
-%% has been issued in the past. It is not necessary for  `Program'  to have been linked
-%% successfully. The link could have failed because the number of active uniforms exceeded
-%% the limit. 
-%%
-%%  `UniformIndex'  must be an active uniform index of the program  `Program' , in
-%% the range zero to `?GL_ACTIVE_UNIFORMS' - 1. The value of `?GL_ACTIVE_UNIFORMS'
-%% can be queried with  {@link gl:getProgramiv/2} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetActiveUniformName.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetActiveUniformName.xhtml">external</a> documentation.
 -spec getActiveUniformName(Program, UniformIndex, BufSize) -> string() when Program :: integer(),UniformIndex :: integer(),BufSize :: integer().
 getActiveUniformName(Program,UniformIndex,BufSize) ->
   call(5678, <<Program:?GLuint,UniformIndex:?GLuint,BufSize:?GLsizei>>).
@@ -14048,21 +6553,7 @@ getActiveUniformName(Program,UniformIndex,BufSize) ->
 %% ``gl:getUniformBlockIndex'' retrieves the index of a uniform block within  `Program' .
 %% 
 %%
-%%  `Program'  must be the name of a program object for which the command  {@link gl:linkProgram/1} 
-%%  must have been called in the past, although it is not required that  {@link gl:linkProgram/1} 
-%%  must have succeeded. The link could have failed because the number of active uniforms
-%% exceeded the limit. 
-%%
-%%  `UniformBlockName'  must contain a nul-terminated string specifying the name of the
-%% uniform block. 
-%%
-%% ``gl:getUniformBlockIndex'' returns the uniform block index for the uniform block named
-%%  `UniformBlockName'  of  `Program' . If  `UniformBlockName'  does not identify
-%% an active uniform block of  `Program' , ``gl:getUniformBlockIndex'' returns the special
-%% identifier, `?GL_INVALID_INDEX'. Indices of the active uniform blocks of a program
-%% are assigned in consecutive order, beginning with zero. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformBlockIndex.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetUniformBlockIndex.xhtml">external</a> documentation.
 -spec getUniformBlockIndex(Program, UniformBlockName) -> integer() when Program :: integer(),UniformBlockName :: string().
 getUniformBlockIndex(Program,UniformBlockName) ->
   UniformBlockNameLen = length(UniformBlockName),
@@ -14073,49 +6564,7 @@ getUniformBlockIndex(Program,UniformBlockName) ->
 %% ``gl:getActiveUniformBlockiv'' retrieves information about an active uniform block within
 %%  `Program' . 
 %%
-%%  `Program'  must be the name of a program object for which the command  {@link gl:linkProgram/1} 
-%%  must have been called in the past, although it is not required that  {@link gl:linkProgram/1} 
-%%  must have succeeded. The link could have failed because the number of active uniforms
-%% exceeded the limit. 
-%%
-%%  `UniformBlockIndex'  is an active uniform block index of  `Program' , and must
-%% be less than the value of `?GL_ACTIVE_UNIFORM_BLOCKS'. 
-%%
-%%  Upon success, the uniform block parameter(s) specified by  `Pname'  are returned in  `Params' 
-%% . If an error occurs, nothing will be written to  `Params' . 
-%%
-%%  If  `Pname'  is `?GL_UNIFORM_BLOCK_BINDING', then the index of the uniform buffer
-%% binding point last selected by the uniform block specified by  `UniformBlockIndex' 
-%% for  `Program'  is returned. If no uniform block has been previously specified, zero
-%% is returned. 
-%%
-%%  If  `Pname'  is `?GL_UNIFORM_BLOCK_DATA_SIZE', then the implementation-dependent
-%% minimum total buffer object size, in basic machine units, required to hold all active
-%% uniforms in the uniform block identified by  `UniformBlockIndex'  is returned. It is
-%% neither guaranteed nor expected that a given implementation will arrange uniform values
-%% as tightly packed in a buffer object. The exception to this is the `std140 uniform block layout'
-%% , which guarantees specific packing behavior and does not require the application to query
-%% for offsets and strides. In this case the minimum size may still be queried, even though
-%% it is determined in advance based only on the uniform block declaration. 
-%%
-%%  If  `Pname'  is `?GL_UNIFORM_BLOCK_NAME_LENGTH', then the total length (including
-%% the nul terminator) of the name of the uniform block identified by  `UniformBlockIndex' 
-%%  is returned. 
-%%
-%%  If  `Pname'  is `?GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS', then the number of active
-%% uniforms in the uniform block identified by  `UniformBlockIndex'  is returned. 
-%%
-%%  If  `Pname'  is `?GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES', then a list of the
-%% active uniform indices for the uniform block identified by  `UniformBlockIndex'  is
-%% returned. The number of elements that will be written to  `Params'  is the value of `?GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS'
-%%  for  `UniformBlockIndex' . 
-%%
-%%  If  `Pname'  is `?GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER', `?GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER'
-%% , or `?GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER', then a boolean value indicating
-%% whether the uniform block identified by  `UniformBlockIndex'  is referenced by the
-%% vertex, geometry, or fragment programming stages of program, respectively, is returned. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetActiveUniformBlock.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetActiveUniformBlock.xhtml">external</a> documentation.
 -spec getActiveUniformBlockiv(Program, UniformBlockIndex, Pname, Params) -> 'ok' when Program :: integer(),UniformBlockIndex :: integer(),Pname :: enum(),Params :: mem().
 getActiveUniformBlockiv(Program,UniformBlockIndex,Pname,Params) ->
   send_bin(Params),
@@ -14126,26 +6575,7 @@ getActiveUniformBlockiv(Program,UniformBlockIndex,Pname,Params) ->
 %% ``gl:getActiveUniformBlockName'' retrieves the name of the active uniform block at  `UniformBlockIndex' 
 %%  within  `Program' . 
 %%
-%%  `Program'  must be the name of a program object for which the command  {@link gl:linkProgram/1} 
-%%  must have been called in the past, although it is not required that  {@link gl:linkProgram/1} 
-%%  must have succeeded. The link could have failed because the number of active uniforms
-%% exceeded the limit. 
-%%
-%%  `UniformBlockIndex'  is an active uniform block index of  `Program' , and must
-%% be less than the value of `?GL_ACTIVE_UNIFORM_BLOCKS'. 
-%%
-%%  Upon success, the name of the uniform block identified by  `UnifomBlockIndex'  is
-%% returned into  `UniformBlockName' . The name is nul-terminated. The actual number of
-%% characters written into  `UniformBlockName' , excluding the nul terminator, is returned
-%% in  `Length' . If  `Length'  is NULL, no length is returned. 
-%%
-%%  `BufSize'  contains the maximum number of characters (including the nul terminator)
-%% that will be written into  `UniformBlockName' . 
-%%
-%%  If an error occurs, nothing will be written to  `UniformBlockName'  or  `Length' .
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetActiveUniformBlockName.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetActiveUniformBlockName.xhtml">external</a> documentation.
 -spec getActiveUniformBlockName(Program, UniformBlockIndex, BufSize) -> string() when Program :: integer(),UniformBlockIndex :: integer(),BufSize :: integer().
 getActiveUniformBlockName(Program,UniformBlockIndex,BufSize) ->
   call(5681, <<Program:?GLuint,UniformBlockIndex:?GLuint,BufSize:?GLsizei>>).
@@ -14157,15 +6587,7 @@ getActiveUniformBlockName(Program,UniformBlockIndex,BufSize) ->
 %%  `Program'  is the name of a program object for which the command  {@link gl:linkProgram/1} 
 %%  has been issued in the past. 
 %%
-%%  If successful, ``gl:uniformBlockBinding'' specifies that  `Program'  will use the
-%% data store of the buffer object bound to the binding point  `UniformBlockBinding' 
-%% to extract the values of the uniforms in the uniform block identified by  `UniformBlockIndex' 
-%% . 
-%%
-%%  When a program object is linked or re-linked, the uniform buffer object binding point
-%% assigned to each of its active uniform blocks is reset to zero. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glUniformBlockBinding.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glUniformBlockBinding.xhtml">external</a> documentation.
 -spec uniformBlockBinding(Program, UniformBlockIndex, UniformBlockBinding) -> 'ok' when Program :: integer(),UniformBlockIndex :: integer(),UniformBlockBinding :: integer().
 uniformBlockBinding(Program,UniformBlockIndex,UniformBlockBinding) ->
   cast(5682, <<Program:?GLuint,UniformBlockIndex:?GLuint,UniformBlockBinding:?GLuint>>).
@@ -14177,21 +6599,7 @@ uniformBlockBinding(Program,UniformBlockIndex,UniformBlockBinding) ->
 %% by  `Size'  is copied from the source, at offset  `Readoffset'  to the destination
 %% at  `Writeoffset' , also in basic machine units. 
 %%
-%%  `Readtarget'  and  `Writetarget'  must be `?GL_ARRAY_BUFFER', `?GL_COPY_READ_BUFFER'
-%% , `?GL_COPY_WRITE_BUFFER', `?GL_ELEMENT_ARRAY_BUFFER', `?GL_PIXEL_PACK_BUFFER'
-%% , `?GL_PIXEL_UNPACK_BUFFER', `?GL_TEXTURE_BUFFER', `?GL_TRANSFORM_FEEDBACK_BUFFER'
-%%  or `?GL_UNIFORM_BUFFER'. Any of these targets may be used, although the targets `?GL_COPY_READ_BUFFER'
-%%  and `?GL_COPY_WRITE_BUFFER' are provided specifically to allow copies between buffers
-%% without disturbing other GL state. 
-%%
-%%  `Readoffset' ,  `Writeoffset'  and  `Size'  must all be greater than or equal
-%% to zero. Furthermore,  `Readoffset'  +  `Size'  must not exceeed the size of the
-%% buffer object bound to  `Readtarget' , and  `Readoffset'  +  `Size'  must not
-%% exceeed the size of the buffer bound to  `Writetarget' . If the same buffer object
-%% is bound to both  `Readtarget'  and  `Writetarget' , then the ranges specified by  `Readoffset' 
-%% ,  `Writeoffset'  and  `Size'  must not overlap. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCopyBufferSubData.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glCopyBufferSubData.xhtml">external</a> documentation.
 -spec copyBufferSubData(ReadTarget, WriteTarget, ReadOffset, WriteOffset, Size) -> 'ok' when ReadTarget :: enum(),WriteTarget :: enum(),ReadOffset :: integer(),WriteOffset :: integer(),Size :: integer().
 copyBufferSubData(ReadTarget,WriteTarget,ReadOffset,WriteOffset,Size) ->
   cast(5683, <<ReadTarget:?GLenum,WriteTarget:?GLenum,ReadOffset:?GLintptr,WriteOffset:?GLintptr,Size:?GLsizeiptr>>).
@@ -14205,7 +6613,7 @@ copyBufferSubData(ReadTarget,WriteTarget,ReadOffset,WriteOffset,Size) ->
 %% were upconverted to 32-bit unsigned integers (with wrapping on overflow conditions). The
 %% operation is undefined if the sum would be negative. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawElementsBaseVertex.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawElementsBaseVertex.xhtml">external</a> documentation.
 -spec drawElementsBaseVertex(Mode, Count, Type, Indices, Basevertex) -> 'ok' when Mode :: enum(),Count :: integer(),Type :: enum(),Indices :: offset()|mem(),Basevertex :: integer().
 drawElementsBaseVertex(Mode,Count,Type,Indices,Basevertex) when  is_integer(Indices) ->
   cast(5684, <<Mode:?GLenum,Count:?GLsizei,Type:?GLenum,Indices:?GLuint,Basevertex:?GLint>>);
@@ -14227,7 +6635,7 @@ drawElementsBaseVertex(Mode,Count,Type,Indices,Basevertex) ->
 %% to 32-bit unsigned integers (with wrapping on overflow conditions). The operation is undefined
 %% if the sum would be negative. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawRangeElementsBaseVertex.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawRangeElementsBaseVertex.xhtml">external</a> documentation.
 -spec drawRangeElementsBaseVertex(Mode, Start, End, Count, Type, Indices, Basevertex) -> 'ok' when Mode :: enum(),Start :: integer(),End :: integer(),Count :: integer(),Type :: enum(),Indices :: offset()|mem(),Basevertex :: integer().
 drawRangeElementsBaseVertex(Mode,Start,End,Count,Type,Indices,Basevertex) when  is_integer(Indices) ->
   cast(5686, <<Mode:?GLenum,Start:?GLuint,End:?GLuint,Count:?GLsizei,Type:?GLenum,Indices:?GLuint,Basevertex:?GLint>>);
@@ -14244,7 +6652,7 @@ drawRangeElementsBaseVertex(Mode,Start,End,Count,Type,Indices,Basevertex) ->
 %% if the calculation were upconverted to 32-bit unsigned integers (with wrapping on overflow
 %% conditions). The operation is undefined if the sum would be negative. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawElementsInstancedBaseVertex.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawElementsInstancedBaseVertex.xhtml">external</a> documentation.
 -spec drawElementsInstancedBaseVertex(Mode, Count, Type, Indices, Primcount, Basevertex) -> 'ok' when Mode :: enum(),Count :: integer(),Type :: enum(),Indices :: offset()|mem(),Primcount :: integer(),Basevertex :: integer().
 drawElementsInstancedBaseVertex(Mode,Count,Type,Indices,Primcount,Basevertex) when  is_integer(Indices) ->
   cast(5688, <<Mode:?GLenum,Count:?GLsizei,Type:?GLenum,Indices:?GLuint,Primcount:?GLsizei,Basevertex:?GLint>>);
@@ -14259,29 +6667,7 @@ drawElementsInstancedBaseVertex(Mode,Count,Type,Indices,Primcount,Basevertex) ->
 %% as the `provoking vertex' and ``gl:provokingVertex'' specifies which vertex is
 %% to be used as the source of data for flat shaded varyings. 
 %%
-%%  `ProvokeMode'  must be either `?GL_FIRST_VERTEX_CONVENTION' or `?GL_LAST_VERTEX_CONVENTION'
-%% , and controls the selection of the vertex whose values are assigned to flatshaded varying
-%% outputs. The interpretation of these values for the supported primitive types is: <table><tbody>
-%% <tr><td>` Primitive Type of Polygon '`i'</td><td>` First Vertex Convention '
-%% </td><td>` Last Vertex Convention '</td></tr><tr><td> point </td><td>`i'</td><td>
-%% `i'</td></tr><tr><td> independent line </td><td> 2`i' - 1 </td><td> 2`i'</td>
-%% </tr><tr><td> line loop </td><td>`i'</td><td>
-%%
-%% `i' + 1, if `i' &lt; `n'
-%%
-%%  1, if `i' = `n'</td></tr><tr><td> line strip </td><td>`i'</td><td>`i'
-%% + 1 </td></tr><tr><td> independent triangle </td><td> 3`i' - 2 </td><td> 3`i'</td>
-%% </tr><tr><td> triangle strip </td><td>`i'</td><td>`i' + 2 </td></tr><tr><td>
-%% triangle fan </td><td>`i' + 1 </td><td>`i' + 2 </td></tr><tr><td> line adjacency
-%% </td><td> 4`i' - 2 </td><td> 4`i' - 1 </td></tr><tr><td> line strip adjacency </td>
-%% <td>`i' + 1 </td><td>`i' + 2 </td></tr><tr><td> triangle adjacency </td><td> 6`i'
-%%  - 5 </td><td> 6`i' - 1 </td></tr><tr><td> triangle strip adjacency </td><td> 2`i'
-%%  - 1 </td><td> 2`i' + 3 </td></tr></tbody></table>
-%%
-%%  If a vertex or geometry shader is active, user-defined varying outputs may be flatshaded
-%% by using the flat qualifier when declaring the output. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProvokingVertex.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glProvokingVertex.xhtml">external</a> documentation.
 -spec provokingVertex(Mode) -> 'ok' when Mode :: enum().
 provokingVertex(Mode) ->
   cast(5690, <<Mode:?GLenum>>).
@@ -14292,20 +6678,7 @@ provokingVertex(Mode) ->
 %% command stream and associates it with that sync object, and returns a non-zero name corresponding
 %% to the sync object. 
 %%
-%%  When the specified  `Condition'  of the sync object is satisfied by the fence command,
-%% the sync object is signaled by the GL, causing any  {@link gl:waitSync/3} ,  {@link gl:clientWaitSync/3} 
-%%  commands blocking in  `Sync'  to `unblock'. No other state is affected by ``gl:fenceSync''
-%%  or by the execution of the associated fence command. 
-%%
-%%  `Condition'  must be `?GL_SYNC_GPU_COMMANDS_COMPLETE'. This condition is satisfied
-%% by  completion of the fence command corresponding to the sync object and all preceding
-%% commands in the same command stream. The sync object will not be signaled until all effects
-%% from these commands on GL client and server state and the framebuffer are fully realized.
-%% Note that completion of the fence command occurs once the state of the corresponding sync
-%% object has been changed, but commands waiting on that sync object may not be unblocked
-%% until after the fence command completes. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glFenceSync.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glFenceSync.xhtml">external</a> documentation.
 -spec fenceSync(Condition, Flags) -> integer() when Condition :: enum(),Flags :: integer().
 fenceSync(Condition,Flags) ->
   call(5691, <<Condition:?GLenum,Flags:?GLbitfield>>).
@@ -14316,7 +6689,7 @@ fenceSync(Condition,Flags) ->
 %% object. If  `Sync'  is not the name of a sync object, or if an error occurs, ``gl:isSync''
 %%  returns `?GL_FALSE'. Note that zero is not the name of a sync object. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsSync.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsSync.xhtml">external</a> documentation.
 -spec isSync(Sync) -> 0|1 when Sync :: integer().
 isSync(Sync) ->
   call(5692, <<Sync:?GLsync>>).
@@ -14331,9 +6704,7 @@ isSync(Sync) ->
 %%  or  {@link gl:clientWaitSync/3}  command. In either case, after ``gl:deleteSync'' returns,
 %% the name  `Sync'  is invalid and can no longer be used to refer to the sync object. 
 %%
-%% ``gl:deleteSync'' will silently ignore a  `Sync'  value of zero. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteSync.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteSync.xhtml">external</a> documentation.
 -spec deleteSync(Sync) -> 'ok' when Sync :: integer().
 deleteSync(Sync) ->
   cast(5693, <<Sync:?GLsync>>).
@@ -14345,21 +6716,7 @@ deleteSync(Sync) ->
 %% is called, ``gl:clientWaitSync'' returns immediately, otherwise it will block and wait
 %% for up to  `Timeout'  nanoseconds for  `Sync'  to become signaled. 
 %%
-%%  The return value is one of four status values: 
-%%
-%% `?GL_ALREADY_SIGNALED' indicates that  `Sync'  was signaled at the time that ``gl:clientWaitSync''
-%%  was called. 
-%%
-%% `?GL_TIMEOUT_EXPIRED' indicates that at least  `Timeout'  nanoseconds passed and  `Sync' 
-%%  did not become signaled. 
-%%
-%% `?GL_CONDITION_SATISFIED' indicates that  `Sync'  was signaled before the timeout
-%% expired. 
-%%
-%% `?GL_WAIT_FAILED' indicates that an error occurred. Additionally, an OpenGL error
-%% will be generated. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClientWaitSync.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glClientWaitSync.xhtml">external</a> documentation.
 -spec clientWaitSync(Sync, Flags, Timeout) -> enum() when Sync :: integer(),Flags :: integer(),Timeout :: integer().
 clientWaitSync(Sync,Flags,Timeout) ->
   call(5694, <<Sync:?GLsync,Flags:?GLbitfield,0:32,Timeout:?GLuint64>>).
@@ -14373,15 +6730,9 @@ clientWaitSync(Sync,Flags,Timeout) ->
 %%
 %%  `Flags'  and  `Timeout'  are placeholders for anticipated future extensions of
 %% sync object capabilities. They must have these reserved values in order that existing
-%% code calling ``gl:waitSync'' operate properly in the presence of such extensions.. ``gl:waitSync''
-%%  will always wait no longer than an implementation-dependent timeout. The duration of
-%% this timeout in nanoseconds may be queried by calling  {@link gl:getBooleanv/1}  with the parameter `?GL_MAX_SERVER_WAIT_TIMEOUT'
-%% . There is currently no way to determine whether ``gl:waitSync'' unblocked because the
-%% timeout expired or because the sync object being waited on was signaled. 
-%%
-%%  If an error occurs, ``gl:waitSync'' does not cause the GL server to block. 
+%% code calling ``gl:waitSync'' operate properly in the presence of such extensions.
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glWaitSync.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glWaitSync.xhtml">external</a> documentation.
 -spec waitSync(Sync, Flags, Timeout) -> 'ok' when Sync :: integer(),Flags :: integer(),Timeout :: integer().
 waitSync(Sync,Flags,Timeout) ->
   cast(5695, <<Sync:?GLsync,Flags:?GLbitfield,0:32,Timeout:?GLuint64>>).
@@ -14397,32 +6748,7 @@ getInteger64v(Pname) ->
 %% ``gl:getSynciv'' retrieves properties of a sync object.  `Sync'  specifies the name
 %% of the sync object whose properties to retrieve. 
 %%
-%%  On success, ``gl:getSynciv'' replaces up to  `BufSize'  integers in  `Values' 
-%% with the corresponding property values of the object being queried. The actual number
-%% of integers replaced is returned in the variable whose address is specified in  `Length' 
-%% . If  `Length'  is NULL, no length is returned. 
-%%
-%%  If  `Pname'  is `?GL_OBJECT_TYPE', a single value representing the specific type
-%% of the sync object is placed in  `Values' . The only type supported is `?GL_SYNC_FENCE'
-%% . 
-%%
-%%  If  `Pname'  is `?GL_SYNC_STATUS', a single value representing the status of
-%% the sync object (`?GL_SIGNALED' or `?GL_UNSIGNALED') is placed in  `Values' .
-%% 
-%%
-%%  If  `Pname'  is `?GL_SYNC_CONDITION', a single value representing the condition
-%% of the sync object is placed in  `Values' . The only condition supported is `?GL_SYNC_GPU_COMMANDS_COMPLETE'
-%% . 
-%%
-%%  If  `Pname'  is `?GL_SYNC_FLAGS', a single value representing the flags with
-%% which the sync object was created is placed in  `Values' . No flags are currently supported
-%% 
-%%
-%%  `Flags'  is expected to be used in future extensions to the sync objects.. 
-%%
-%%  If an error occurs, nothing will be written to  `Values'  or  `Length' . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetSync.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetSync.xhtml">external</a> documentation.
 -spec getSynciv(Sync, Pname, BufSize) -> [integer()] when Sync :: integer(),Pname :: enum(),BufSize :: integer().
 getSynciv(Sync,Pname,BufSize) ->
   call(5697, <<Sync:?GLsync,Pname:?GLenum,BufSize:?GLsizei>>).
@@ -14432,25 +6758,7 @@ getSynciv(Sync,Pname,BufSize) ->
 %% ``gl:texImage2DMultisample'' establishes the data storage, format, dimensions and number
 %% of samples of a multisample texture's image. 
 %%
-%%  `Target'  must be `?GL_TEXTURE_2D_MULTISAMPLE' or `?GL_PROXY_TEXTURE_2D_MULTISAMPLE'
-%% .  `Width'  and  `Height'  are the dimensions in texels of the texture, and must
-%% be in the range zero to `?GL_MAX_TEXTURE_SIZE' - 1.  `Samples'  specifies the
-%% number of samples in the image and must be in the range zero to `?GL_MAX_SAMPLES'
-%% - 1. 
-%%
-%%  `Internalformat'  must be a color-renderable, depth-renderable, or stencil-renderable
-%% format. 
-%%
-%%  If  `Fixedsamplelocations'  is `?GL_TRUE', the image will use identical sample
-%% locations and the same number of samples for all texels in the image, and the sample locations
-%% will not depend on the internal format or size of the image. 
-%%
-%%  When a multisample texture is accessed in a shader, the access takes one vector of integers
-%% describing which texel to fetch and an integer corresponding to the sample numbers describing
-%% which sample within the texel to fetch. No standard sampling instructions are allowed
-%% on the multisample texture targets. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexImage2DMultisample.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexImage2DMultisample.xhtml">external</a> documentation.
 -spec texImage2DMultisample(Target, Samples, Internalformat, Width, Height, Fixedsamplelocations) -> 'ok' when Target :: enum(),Samples :: integer(),Internalformat :: integer(),Width :: integer(),Height :: integer(),Fixedsamplelocations :: 0|1.
 texImage2DMultisample(Target,Samples,Internalformat,Width,Height,Fixedsamplelocations) ->
   cast(5698, <<Target:?GLenum,Samples:?GLsizei,Internalformat:?GLint,Width:?GLsizei,Height:?GLsizei,Fixedsamplelocations:?GLboolean>>).
@@ -14460,25 +6768,7 @@ texImage2DMultisample(Target,Samples,Internalformat,Width,Height,Fixedsampleloca
 %% ``gl:texImage3DMultisample'' establishes the data storage, format, dimensions and number
 %% of samples of a multisample texture's image. 
 %%
-%%  `Target'  must be `?GL_TEXTURE_2D_MULTISAMPLE_ARRAY' or `?GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY'
-%% .  `Width'  and  `Height' are the dimensions in texels of the texture, and must
-%% be in the range zero to `?GL_MAX_TEXTURE_SIZE' - 1.  `Depth'  is the number of
-%% array slices in the array texture's image.  `Samples'  specifies the number of samples
-%% in the image and must be in the range zero to `?GL_MAX_SAMPLES' - 1. 
-%%
-%%  `Internalformat'  must be a color-renderable, depth-renderable, or stencil-renderable
-%% format. 
-%%
-%%  If  `Fixedsamplelocations'  is `?GL_TRUE', the image will use identical sample
-%% locations and the same number of samples for all texels in the image, and the sample locations
-%% will not depend on the internal format or size of the image. 
-%%
-%%  When a multisample texture is accessed in a shader, the access takes one vector of integers
-%% describing which texel to fetch and an integer corresponding to the sample numbers describing
-%% which sample within the texel to fetch. No standard sampling instructions are allowed
-%% on the multisample texture targets. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexImage3DMultisample.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexImage3DMultisample.xhtml">external</a> documentation.
 -spec texImage3DMultisample(Target, Samples, Internalformat, Width, Height, Depth, Fixedsamplelocations) -> 'ok' when Target :: enum(),Samples :: integer(),Internalformat :: integer(),Width :: integer(),Height :: integer(),Depth :: integer(),Fixedsamplelocations :: 0|1.
 texImage3DMultisample(Target,Samples,Internalformat,Width,Height,Depth,Fixedsamplelocations) ->
   cast(5699, <<Target:?GLenum,Samples:?GLsizei,Internalformat:?GLint,Width:?GLsizei,Height:?GLsizei,Depth:?GLsizei,Fixedsamplelocations:?GLboolean>>).
@@ -14493,10 +6783,7 @@ texImage3DMultisample(Target,Samples,Internalformat,Width,Height,Depth,Fixedsamp
 %% space of that sample. (0.5, 0.5) this corresponds to the pixel center.  `Index'  must
 %% be between zero and the value of `?GL_SAMPLES' - 1. 
 %%
-%%  If the multisample mode does not have fixed sample locations, the returned values may
-%% only reflect the locations of samples within some pixels. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetMultisample.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetMultisample.xhtml">external</a> documentation.
 -spec getMultisamplefv(Pname, Index) -> {float(),float()} when Pname :: enum(),Index :: integer().
 getMultisamplefv(Pname,Index) ->
   call(5700, <<Pname:?GLenum,Index:?GLuint>>).
@@ -14506,19 +6793,14 @@ getMultisamplefv(Pname,Index) ->
 %% ``gl:sampleMaski'' sets one 32-bit sub-word of the multi-word sample mask, `?GL_SAMPLE_MASK_VALUE'
 %% . 
 %%
-%%  `MaskIndex'  specifies which 32-bit sub-word of the sample mask to update, and  `Mask' 
-%%  specifies the new value to use for that sub-word.  `MaskIndex'  must be less than
-%% the value of `?GL_MAX_SAMPLE_MASK_WORDS'. Bit `B' of mask word `M' corresponds
-%% to sample 32 x `M' + `B'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glSampleMaski.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glSampleMaski.xhtml">external</a> documentation.
 -spec sampleMaski(Index, Mask) -> 'ok' when Index :: integer(),Mask :: integer().
 sampleMaski(Index,Mask) ->
   cast(5701, <<Index:?GLuint,Mask:?GLbitfield>>).
 
 %% @doc glNamedStringARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glNamedStringARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec namedStringARB(Type, Name, String) -> 'ok' when Type :: enum(),Name :: string(),String :: string().
 namedStringARB(Type,Name,String) ->
   NameLen = length(Name),
@@ -14527,7 +6809,7 @@ namedStringARB(Type,Name,String) ->
 
 %% @doc glDeleteNamedStringARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteNamedStringARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec deleteNamedStringARB(Name) -> 'ok' when Name :: string().
 deleteNamedStringARB(Name) ->
   NameLen = length(Name),
@@ -14535,7 +6817,7 @@ deleteNamedStringARB(Name) ->
 
 %% @doc glCompileShaderIncludeARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCompileShaderIncludeARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec compileShaderIncludeARB(Shader, Path) -> 'ok' when Shader :: integer(),Path :: iolist().
 compileShaderIncludeARB(Shader,Path) ->
   PathTemp = list_to_binary([[Str|[0]] || Str <- Path ]),
@@ -14544,7 +6826,7 @@ compileShaderIncludeARB(Shader,Path) ->
 
 %% @doc glIsNamedStringARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsNamedStringARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec isNamedStringARB(Name) -> 0|1 when Name :: string().
 isNamedStringARB(Name) ->
   NameLen = length(Name),
@@ -14552,7 +6834,7 @@ isNamedStringARB(Name) ->
 
 %% @doc glGetNamedStringARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetNamedStringARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getNamedStringARB(Name, BufSize) -> string() when Name :: string(),BufSize :: integer().
 getNamedStringARB(Name,BufSize) ->
   NameLen = length(Name),
@@ -14560,7 +6842,7 @@ getNamedStringARB(Name,BufSize) ->
 
 %% @doc glGetNamedStringARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetNamedStringARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getNamedStringivARB(Name, Pname) -> integer() when Name :: string(),Pname :: enum().
 getNamedStringivARB(Name,Pname) ->
   NameLen = length(Name),
@@ -14568,7 +6850,7 @@ getNamedStringivARB(Name,Pname) ->
 
 %% @doc glBindFragDataLocationIndexe
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindFragDataLocationIndexe.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec bindFragDataLocationIndexed(Program, ColorNumber, Index, Name) -> 'ok' when Program :: integer(),ColorNumber :: integer(),Index :: integer(),Name :: string().
 bindFragDataLocationIndexed(Program,ColorNumber,Index,Name) ->
   NameLen = length(Name),
@@ -14580,7 +6862,7 @@ bindFragDataLocationIndexed(Program,ColorNumber,Index,Name) ->
 %%  was bound when the program object  `Program'  was last linked. If  `Name'  is not
 %% a varying out variable of  `Program' , or if an error occurs, -1 will be returned. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetFragDataIndex.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetFragDataIndex.xhtml">external</a> documentation.
 -spec getFragDataIndex(Program, Name) -> integer() when Program :: integer(),Name :: string().
 getFragDataIndex(Program,Name) ->
   NameLen = length(Name),
@@ -14593,13 +6875,7 @@ getFragDataIndex(Program,Name) ->
 %% that none of the returned names was in use immediately before the call to ``gl:genSamplers''
 %% . 
 %%
-%%  Sampler object names returned by a call to ``gl:genSamplers'' are not returned by subsequent
-%% calls, unless they are first deleted with  {@link gl:deleteSamplers/1} . 
-%%
-%%  The names returned in  `Samplers'  are marked as used, for the purposes of ``gl:genSamplers''
-%%  only, but they acquire state and type only when they are first bound. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenSamplers.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGenSamplers.xhtml">external</a> documentation.
 -spec genSamplers(Count) -> [integer()] when Count :: integer().
 genSamplers(Count) ->
   call(5710, <<Count:?GLsizei>>).
@@ -14612,7 +6888,7 @@ genSamplers(Count) ->
 %%  is called with unit set to the unit the sampler is bound to and sampler zero. Unused
 %% names in samplers are silently ignored, as is the reserved name zero. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteSamplers.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteSamplers.xhtml">external</a> documentation.
 -spec deleteSamplers(Samplers) -> 'ok' when Samplers :: [integer()].
 deleteSamplers(Samplers) ->
   SamplersLen = length(Samplers),
@@ -14625,9 +6901,7 @@ deleteSamplers(Samplers) ->
 %% object. If  `Id'  is zero, or is a non-zero value that is not currently the name of
 %% a sampler object, or if an error occurs, ``gl:isSampler'' returns `?GL_FALSE'. 
 %%
-%%  A name returned by  {@link gl:genSamplers/1} , is the name of a sampler object. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsSampler.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsSampler.xhtml">external</a> documentation.
 -spec isSampler(Sampler) -> 0|1 when Sampler :: integer().
 isSampler(Sampler) ->
   call(5712, <<Sampler:?GLuint>>).
@@ -14639,12 +6913,7 @@ isSampler(Sampler) ->
 %% .  `Unit'  must be less than the value of `?GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS'.
 %% 
 %%
-%%  When a sampler object is bound to a texture unit, its state supersedes that of the texture
-%% object bound to that texture unit. If the sampler name zero is bound to a texture unit,
-%% the currently bound texture's sampler state becomes active. A single sampler object may
-%% be bound to multiple texture units simultaneously. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindSampler.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindSampler.xhtml">external</a> documentation.
 -spec bindSampler(Unit, Sampler) -> 'ok' when Unit :: integer(),Sampler :: integer().
 bindSampler(Unit,Sampler) ->
   cast(5713, <<Unit:?GLuint,Sampler:?GLuint>>).
@@ -14656,141 +6925,7 @@ bindSampler(Unit,Sampler) ->
 %% modified, and must be the name of a sampler object previously returned from a call to  {@link gl:genSamplers/1} 
 %% . The following symbols are accepted in  `Pname' : 
 %%
-%% `?GL_TEXTURE_MIN_FILTER':  The texture minifying function is used whenever the pixel
-%% being textured maps to an area greater than one texture element. There are six defined
-%% minifying functions. Two of them use the nearest one or nearest four texture elements
-%% to compute the texture value. The other four use mipmaps. 
-%%
-%%  A mipmap is an ordered set of arrays representing the same image at progressively lower
-%% resolutions. If the texture has dimensions   2 n×2 m, there are  max(n m)+1 mipmaps. The first
-%% mipmap is the original texture, with dimensions   2 n×2 m. Each subsequent mipmap has
-%% dimensions   2(k-1)×2(l-1), where   2 k×2 l are the dimensions of the previous mipmap, until either
-%%   k=0 or   l=0. At that point, subsequent mipmaps have dimension   1×2(l-1) or   2(k-1)×1 until
-%% the final mipmap, which has dimension   1×1. To define the mipmaps, call  {@link gl:texImage1D/8} 
-%% ,  {@link gl:texImage2D/9} ,  {@link gl:texImage3D/10} ,  {@link gl:copyTexImage1D/7} , or  {@link gl:copyTexImage2D/8} 
-%%  with the `level' argument indicating the order of the mipmaps. Level 0 is the original
-%% texture; level   max(n m) is the final   1×1 mipmap. 
-%%
-%%  `Params'  supplies a function for minifying the texture as one of the following: 
-%%
-%% `?GL_NEAREST':  Returns the value of the texture element that is nearest (in Manhattan
-%% distance) to the center of the pixel being textured. 
-%%
-%% `?GL_LINEAR':  Returns the weighted average of the four texture elements that are
-%% closest to the center of the pixel being textured. These can include border texture elements,
-%% depending on the values of `?GL_TEXTURE_WRAP_S' and `?GL_TEXTURE_WRAP_T', and
-%% on the exact mapping. 
-%%
-%% `?GL_NEAREST_MIPMAP_NEAREST':  Chooses the mipmap that most closely matches the size
-%% of the pixel being textured and uses the `?GL_NEAREST' criterion (the texture element
-%% nearest to the center of the pixel) to produce a texture value. 
-%%
-%% `?GL_LINEAR_MIPMAP_NEAREST':  Chooses the mipmap that most closely matches the size
-%% of the pixel being textured and uses the `?GL_LINEAR' criterion (a weighted average
-%% of the four texture elements that are closest to the center of the pixel) to produce a
-%% texture value. 
-%%
-%% `?GL_NEAREST_MIPMAP_LINEAR':  Chooses the two mipmaps that most closely match the
-%% size of the pixel being textured and uses the `?GL_NEAREST' criterion (the texture
-%% element nearest to the center of the pixel) to produce a texture value from each mipmap.
-%% The final texture value is a weighted average of those two values. 
-%%
-%% `?GL_LINEAR_MIPMAP_LINEAR':  Chooses the two mipmaps that most closely match the
-%% size of the pixel being textured and uses the `?GL_LINEAR' criterion (a weighted
-%% average of the four texture elements that are closest to the center of the pixel) to produce
-%% a texture value from each mipmap. The final texture value is a weighted average of those
-%% two values. 
-%%
-%%  As more texture elements are sampled in the minification process, fewer aliasing artifacts
-%% will be apparent. While the `?GL_NEAREST' and `?GL_LINEAR' minification functions
-%% can be faster than the other four, they sample only one or four texture elements to determine
-%% the texture value of the pixel being rendered and can produce moire patterns or ragged
-%% transitions. The initial value of `?GL_TEXTURE_MIN_FILTER' is `?GL_NEAREST_MIPMAP_LINEAR'
-%% . 
-%%
-%% `?GL_TEXTURE_MAG_FILTER':  The texture magnification function is used when the pixel
-%% being textured maps to an area less than or equal to one texture element. It sets the
-%% texture magnification function to either `?GL_NEAREST' or `?GL_LINEAR' (see
-%% below). `?GL_NEAREST' is generally faster than `?GL_LINEAR', but it can produce
-%% textured images with sharper edges because the transition between texture elements is
-%% not as smooth. The initial value of `?GL_TEXTURE_MAG_FILTER' is `?GL_LINEAR'. 
-%%
-%% `?GL_NEAREST':  Returns the value of the texture element that is nearest (in Manhattan
-%% distance) to the center of the pixel being textured. 
-%%
-%% `?GL_LINEAR':  Returns the weighted average of the four texture elements that are
-%% closest to the center of the pixel being textured. These can include border texture elements,
-%% depending on the values of `?GL_TEXTURE_WRAP_S' and `?GL_TEXTURE_WRAP_T', and
-%% on the exact mapping. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_MIN_LOD':  Sets the minimum level-of-detail parameter. This floating-point
-%% value limits the selection of highest resolution mipmap (lowest mipmap level). The initial
-%% value is -1000. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_MAX_LOD':  Sets the maximum level-of-detail parameter. This floating-point
-%% value limits the selection of the lowest resolution mipmap (highest mipmap level). The
-%% initial value is 1000. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_WRAP_S':  Sets the wrap parameter for texture coordinate   s to either `?GL_CLAMP_TO_EDGE'
-%% , `?GL_MIRRORED_REPEAT', or `?GL_REPEAT'. `?GL_CLAMP_TO_BORDER' causes
-%% the   s coordinate to be clamped to the range [(-1 2/N) 1+(1 2/N)], where   N is the size of the texture in
-%% the direction of clamping.`?GL_CLAMP_TO_EDGE' causes   s coordinates to be clamped
-%% to the range  [(1 2/N) 1-(1 2/N)], where   N is the size of the texture in the direction of clamping. `?GL_REPEAT'
-%%  causes the integer part of the   s coordinate to be ignored; the GL uses only the fractional
-%% part, thereby creating a repeating pattern. `?GL_MIRRORED_REPEAT' causes the   s
-%% coordinate to be set to the fractional part of the texture coordinate if the integer part
-%% of   s is even; if the integer part of   s is odd, then the   s texture coordinate is
-%% set to   1-frac(s), where   frac(s) represents the fractional part of  s. Initially, `?GL_TEXTURE_WRAP_S'
-%%  is set to `?GL_REPEAT'. 
-%%
-%% 
-%%
-%% `?GL_TEXTURE_WRAP_T':  Sets the wrap parameter for texture coordinate   t to either `?GL_CLAMP_TO_EDGE'
-%% , `?GL_MIRRORED_REPEAT', or `?GL_REPEAT'. See the discussion under `?GL_TEXTURE_WRAP_S'
-%% . Initially, `?GL_TEXTURE_WRAP_T' is set to `?GL_REPEAT'. 
-%%
-%% `?GL_TEXTURE_WRAP_R':  Sets the wrap parameter for texture coordinate   r to either `?GL_CLAMP_TO_EDGE'
-%% , `?GL_MIRRORED_REPEAT', or `?GL_REPEAT'. See the discussion under `?GL_TEXTURE_WRAP_S'
-%% . Initially, `?GL_TEXTURE_WRAP_R' is set to `?GL_REPEAT'. 
-%%
-%% `?GL_TEXTURE_BORDER_COLOR':  The data in  `Params'  specifies four values that
-%% define the border values that should be used for border texels. If a texel is sampled
-%% from the border of the texture, the values of `?GL_TEXTURE_BORDER_COLOR' are interpreted
-%% as an RGBA color to match the texture's internal format and substituted for the non-existent
-%% texel data. If the texture contains depth components, the first component of `?GL_TEXTURE_BORDER_COLOR'
-%%  is interpreted as a depth value. The initial value is (0.0,  0.0,  0.0,  0.0). 
-%%
-%% `?GL_TEXTURE_COMPARE_MODE':  Specifies the texture comparison mode for currently
-%% bound textures. That is, a texture whose internal format is `?GL_DEPTH_COMPONENT_*';
-%% see  {@link gl:texImage2D/9} ) Permissible values are: 
-%%
-%% `?GL_COMPARE_REF_TO_TEXTURE':  Specifies that the interpolated and clamped   r texture
-%% coordinate should be compared to the value in the currently bound texture. See the discussion
-%% of `?GL_TEXTURE_COMPARE_FUNC' for details of how the comparison is evaluated. The
-%% result of the comparison is assigned to the red channel. 
-%%
-%% `?GL_NONE':  Specifies that the red channel should be assigned the appropriate value
-%% from the currently bound texture. 
-%%
-%% `?GL_TEXTURE_COMPARE_FUNC':  Specifies the comparison operator used when `?GL_TEXTURE_COMPARE_MODE'
-%%  is set to `?GL_COMPARE_REF_TO_TEXTURE'. Permissible values are: <table><tbody><tr><td>
-%% ` Texture Comparison Function '</td><td>` Computed result  '</td></tr></tbody><tbody>
-%% <tr><td>`?GL_LEQUAL'</td><td> result={1.0 0.0    r&lt;=(D t) r&gt;(D t))</td></tr><tr><td>`?GL_GEQUAL'</td><td>
-%% result={1.0 0.0    r&gt;=(D t) r&lt;(D t))</td></tr><tr><td>`?GL_LESS'</td><td> result={1.0 0.0    r&lt;(D t) r&gt;=(D t))</td></tr><tr><td>`?GL_GREATER'
-%% </td><td> result={1.0 0.0    r&gt;(D t) r&lt;=(D t))</td></tr><tr><td>`?GL_EQUAL'</td><td> result={1.0 0.0    r=(D t) r&amp;ne;
-%% (D t))</td></tr><tr><td>`?GL_NOTEQUAL'
-%% </td><td> result={1.0 0.0    r&amp;ne;(D t) r=(D t))</td></tr><tr><td>`?GL_ALWAYS'</td><td> result=1.0</td></tr><tr><td>
-%% `?GL_NEVER'</td><td> result=0.0</td></tr></tbody></table> where  r is the current
-%% interpolated texture coordinate, and   D t is the texture value sampled from the currently
-%% bound texture.  result is assigned to  R t. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glSamplerParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glSamplerParameter.xhtml">external</a> documentation.
 -spec samplerParameteri(Sampler, Pname, Param) -> 'ok' when Sampler :: integer(),Pname :: enum(),Param :: integer().
 samplerParameteri(Sampler,Pname,Param) ->
   cast(5714, <<Sampler:?GLuint,Pname:?GLenum,Param:?GLint>>).
@@ -14827,7 +6962,7 @@ samplerParameterIiv(Sampler,Pname,Param) ->
 
 %% @doc glSamplerParameterI
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glSamplerParameterI.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec samplerParameterIuiv(Sampler, Pname, Param) -> 'ok' when Sampler :: integer(),Pname :: enum(),Param :: [integer()].
 samplerParameterIuiv(Sampler,Pname,Param) ->
   ParamLen = length(Param),
@@ -14842,41 +6977,7 @@ samplerParameterIuiv(Sampler,Pname,Param) ->
 %% .  `Pname'  accepts the same symbols as  {@link gl:samplerParameteri/3} , with the same
 %% interpretations: 
 %%
-%% `?GL_TEXTURE_MAG_FILTER':  Returns the single-valued texture magnification filter,
-%% a symbolic constant. The initial value is `?GL_LINEAR'. 
-%%
-%% `?GL_TEXTURE_MIN_FILTER':  Returns the single-valued texture minification filter,
-%% a symbolic constant. The initial value is `?GL_NEAREST_MIPMAP_LINEAR'. 
-%%
-%% `?GL_TEXTURE_MIN_LOD':  Returns the single-valued texture minimum level-of-detail
-%% value. The initial value is   -1000. 
-%%
-%% `?GL_TEXTURE_MAX_LOD':  Returns the single-valued texture maximum level-of-detail
-%% value. The initial value is 1000. 
-%%
-%% `?GL_TEXTURE_WRAP_S':  Returns the single-valued wrapping function for texture coordinate
-%%   s, a symbolic constant. The initial value is `?GL_REPEAT'. 
-%%
-%% `?GL_TEXTURE_WRAP_T':  Returns the single-valued wrapping function for texture coordinate
-%%   t, a symbolic constant. The initial value is `?GL_REPEAT'. 
-%%
-%% `?GL_TEXTURE_WRAP_R':  Returns the single-valued wrapping function for texture coordinate
-%%   r, a symbolic constant. The initial value is `?GL_REPEAT'. 
-%%
-%% `?GL_TEXTURE_BORDER_COLOR':  Returns four integer or floating-point numbers that
-%% comprise the RGBA color of the texture border. Floating-point values are returned in the
-%% range  [0 1]. Integer values are returned as a linear mapping of the internal floating-point
-%% representation such that 1.0 maps to the most positive representable integer and   -1.0
-%% maps to the most negative representable integer. The initial value is (0, 0, 0, 0). 
-%%
-%% `?GL_TEXTURE_COMPARE_MODE':  Returns a single-valued texture comparison mode, a symbolic
-%% constant. The initial value is `?GL_NONE'. See  {@link gl:samplerParameteri/3} . 
-%%
-%% `?GL_TEXTURE_COMPARE_FUNC':  Returns a single-valued texture comparison function,
-%% a symbolic constant. The initial value is `?GL_LEQUAL'. See  {@link gl:samplerParameteri/3} 
-%% . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetSamplerParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetSamplerParameter.xhtml">external</a> documentation.
 -spec getSamplerParameteriv(Sampler, Pname) -> [integer()] when Sampler :: integer(),Pname :: enum().
 getSamplerParameteriv(Sampler,Pname) ->
   call(5720, <<Sampler:?GLuint,Pname:?GLenum>>).
@@ -14895,7 +6996,7 @@ getSamplerParameterfv(Sampler,Pname) ->
 
 %% @doc glGetSamplerParameterI
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetSamplerParameterI.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getSamplerParameterIuiv(Sampler, Pname) -> [integer()] when Sampler :: integer(),Pname :: enum().
 getSamplerParameterIuiv(Sampler,Pname) ->
   call(5723, <<Sampler:?GLuint,Pname:?GLenum>>).
@@ -14910,21 +7011,21 @@ getSamplerParameterIuiv(Sampler,Pname) ->
 %%  block where the target is `?GL_TIME_ELAPSED' and it does not affect the result of
 %% that query object. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glQueryCounter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glQueryCounter.xhtml">external</a> documentation.
 -spec queryCounter(Id, Target) -> 'ok' when Id :: integer(),Target :: enum().
 queryCounter(Id,Target) ->
   cast(5724, <<Id:?GLuint,Target:?GLenum>>).
 
 %% @doc glGetQueryObjecti64v
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetQueryObjecti64v.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getQueryObjecti64v(Id, Pname) -> integer() when Id :: integer(),Pname :: enum().
 getQueryObjecti64v(Id,Pname) ->
   call(5725, <<Id:?GLuint,Pname:?GLenum>>).
 
 %% @doc glGetQueryObjectui64v
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetQueryObjectui64v.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getQueryObjectui64v(Id, Pname) -> integer() when Id :: integer(),Pname :: enum().
 getQueryObjectui64v(Id,Pname) ->
   call(5726, <<Id:?GLuint,Pname:?GLenum>>).
@@ -14936,25 +7037,7 @@ getQueryObjectui64v(Id,Pname) ->
 %% , execept that the parameters to  {@link gl:drawArraysInstancedBaseInstance/5}  are stored
 %% in memory at the address given by  `Indirect' . 
 %%
-%%  The parameters addressed by  `Indirect'  are packed into a structure that takes the
-%% form (in C):  typedef struct { uint count; uint primCount; uint first; uint baseInstance;
-%% } DrawArraysIndirectCommand;  const DrawArraysIndirectCommand *cmd = (const DrawArraysIndirectCommand
-%% *)indirect; glDrawArraysInstancedBaseInstance(mode, cmd-&gt;first, cmd-&gt;count, cmd-&gt;primCount,
-%% cmd-&gt;baseInstance);
-%%
-%%  If a buffer is bound to the `?GL_DRAW_INDIRECT_BUFFER' binding at the time of a
-%% call to ``gl:drawArraysIndirect'',  `Indirect'  is interpreted as an offset, in basic
-%% machine units, into that buffer and the parameter data is read from the buffer rather
-%% than from client memory. 
-%%
-%%  In contrast to  {@link gl:drawArraysInstancedBaseInstance/5} , the first member of the parameter
-%% structure is unsigned, and out-of-range indices do not generate an error. 
-%%
-%%  Vertex attributes that are modified by ``gl:drawArraysIndirect'' have an unspecified
-%% value after ``gl:drawArraysIndirect'' returns. Attributes that aren't modified remain
-%% well defined. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawArraysIndirect.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawArraysIndirect.xhtml">external</a> documentation.
 -spec drawArraysIndirect(Mode, Indirect) -> 'ok' when Mode :: enum(),Indirect :: offset()|mem().
 drawArraysIndirect(Mode,Indirect) when  is_integer(Indirect) ->
   cast(5727, <<Mode:?GLenum,Indirect:?GLuint>>);
@@ -14969,32 +7052,7 @@ drawArraysIndirect(Mode,Indirect) ->
 %% , execpt that the parameters to  {@link gl:drawElementsInstancedBaseVertexBaseInstance/7} 
 %% are stored in memory at the address given by  `Indirect' . 
 %%
-%%  The parameters addressed by  `Indirect'  are packed into a structure that takes the
-%% form (in C):  typedef struct { uint count; uint primCount; uint firstIndex; uint baseVertex;
-%% uint baseInstance; } DrawElementsIndirectCommand;
-%%
-%% ``gl:drawElementsIndirect'' is equivalent to:  void glDrawElementsIndirect(GLenum mode,
-%% GLenum type, const void * indirect) { const DrawElementsIndirectCommand *cmd = (const
-%% DrawElementsIndirectCommand *)indirect; glDrawElementsInstancedBaseVertexBaseInstance(mode,
-%% cmd-&gt;count, type, cmd-&gt;firstIndex + size-of-type, cmd-&gt;primCount, cmd-&gt;baseVertex,
-%% cmd-&gt;baseInstance); }
-%%
-%%  If a buffer is bound to the `?GL_DRAW_INDIRECT_BUFFER' binding at the time of a
-%% call to ``gl:drawElementsIndirect'',  `Indirect'  is interpreted as an offset, in
-%% basic machine units, into that buffer and the parameter data is read from the buffer rather
-%% than from client memory. 
-%%
-%%  Note that indices stored in client memory are not supported. If no buffer is bound to
-%% the `?GL_ELEMENT_ARRAY_BUFFER' binding, an error will be generated. 
-%%
-%%  The results of the operation are undefined if the reservedMustBeZero member of the parameter
-%% structure is non-zero. However, no error is generated in this case. 
-%%
-%%  Vertex attributes that are modified by ``gl:drawElementsIndirect'' have an unspecified
-%% value after ``gl:drawElementsIndirect'' returns. Attributes that aren't modified remain
-%% well defined. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawElementsIndirect.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawElementsIndirect.xhtml">external</a> documentation.
 -spec drawElementsIndirect(Mode, Type, Indirect) -> 'ok' when Mode :: enum(),Type :: enum(),Indirect :: offset()|mem().
 drawElementsIndirect(Mode,Type,Indirect) when  is_integer(Indirect) ->
   cast(5729, <<Mode:?GLenum,Type:?GLenum,Indirect:?GLuint>>);
@@ -15142,15 +7200,7 @@ getUniformdv(Program,Location) ->
 %%  `Name'  in the shader stage of type  `Shadertype'  attached to  `Program' ,
 %% with behavior otherwise identical to  {@link gl:getUniformLocation/2} . 
 %%
-%%  If  `Name'  is not the name of a subroutine uniform in the shader stage, -1 is returned,
-%% but no error is generated. If  `Name'  is the name of a subroutine uniform in the shader
-%% stage, a value between zero and the value of `?GL_ACTIVE_SUBROUTINE_LOCATIONS' minus
-%% one will be returned. Subroutine locations are assigned using consecutive integers in
-%% the range from zero to the value of `?GL_ACTIVE_SUBROUTINE_LOCATIONS' minus one for
-%% the shader stage. For active subroutine uniforms declared as arrays, the declared array
-%% elements are assigned consecutive locations. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetSubroutineUniformLocation.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetSubroutineUniformLocation.xhtml">external</a> documentation.
 -spec getSubroutineUniformLocation(Program, Shadertype, Name) -> integer() when Program :: integer(),Shadertype :: enum(),Name :: string().
 getSubroutineUniformLocation(Program,Shadertype,Name) ->
   NameLen = length(Name),
@@ -15164,14 +7214,7 @@ getSubroutineUniformLocation(Program,Shadertype,Name) ->
 %% shader subroutine index.  `Name'  contains the null-terminated name of the subroutine
 %% uniform whose name to query. 
 %%
-%%  If  `Name'  is not the name of a subroutine uniform in the shader stage, `?GL_INVALID_INDEX'
-%%  is returned, but no error is generated. If  `Name'  is the name of a subroutine uniform
-%% in the shader stage, a value between zero and the value of `?GL_ACTIVE_SUBROUTINES'
-%% minus one will be returned. Subroutine indices are assigned using consecutive integers
-%% in the range from zero to the value of `?GL_ACTIVE_SUBROUTINES' minus one for the
-%% shader stage. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetSubroutineIndex.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetSubroutineIndex.xhtml">external</a> documentation.
 -spec getSubroutineIndex(Program, Shadertype, Name) -> integer() when Program :: integer(),Shadertype :: enum(),Name :: string().
 getSubroutineIndex(Program,Shadertype,Name) ->
   NameLen = length(Name),
@@ -15185,15 +7228,7 @@ getSubroutineIndex(Program,Shadertype,Name) ->
 %%  `Index'  must be between zero and the value of `?GL_ACTIVE_SUBROUTINE_UNIFORMS'
 %% minus one for the shader stage. 
 %%
-%%  The uniform name is returned as a null-terminated string in  `Name' . The actual number
-%% of characters written into  `Name' , excluding the null terminator is returned in  `Length' 
-%% . If  `Length'  is `?NULL', no length is returned. The maximum number of characters
-%% that may be written into  `Name' , including the null terminator, is specified by  `Bufsize' 
-%% . The length of the longest subroutine uniform name in  `Program'  and  `Shadertype' 
-%%  is given by the value of `?GL_ACTIVE_SUBROUTINE_UNIFORM_MAX_LENGTH', which can be
-%% queried with  {@link gl:getProgramStageiv/3} . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetActiveSubroutineUniformName.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetActiveSubroutineUniformName.xhtml">external</a> documentation.
 -spec getActiveSubroutineUniformName(Program, Shadertype, Index, Bufsize) -> string() when Program :: integer(),Shadertype :: enum(),Index :: integer(),Bufsize :: integer().
 getActiveSubroutineUniformName(Program,Shadertype,Index,Bufsize) ->
   call(5751, <<Program:?GLuint,Shadertype:?GLenum,Index:?GLuint,Bufsize:?GLsizei>>).
@@ -15205,13 +7240,7 @@ getActiveSubroutineUniformName(Program,Shadertype,Index,Bufsize) ->
 %% shader subroutine uniform within the shader stage given by  `Stage' , and must between
 %% zero and the value of `?GL_ACTIVE_SUBROUTINES' minus one for the shader stage. 
 %%
-%%  The name of the selected subroutine is returned as a null-terminated string in  `Name' 
-%% . The actual number of characters written into  `Name' , not including the null-terminator,
-%% is is returned in  `Length' . If  `Length'  is `?NULL', no length is returned.
-%% The maximum number of characters that may be written into  `Name' , including the null-terminator,
-%% is given in  `Bufsize' . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetActiveSubroutineName.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetActiveSubroutineName.xhtml">external</a> documentation.
 -spec getActiveSubroutineName(Program, Shadertype, Index, Bufsize) -> string() when Program :: integer(),Shadertype :: enum(),Index :: integer(),Bufsize :: integer().
 getActiveSubroutineName(Program,Shadertype,Index,Bufsize) ->
   call(5752, <<Program:?GLuint,Shadertype:?GLenum,Index:?GLuint,Bufsize:?GLsizei>>).
@@ -15225,7 +7254,7 @@ getActiveSubroutineName(Program,Shadertype,Index,Bufsize) ->
 %% values in  `Indices'  must be less than the value of `?GL_ACTIVE_SUBROUTINES'
 %% for the shader stage. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glUniformSubroutines.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glUniformSubroutines.xhtml">external</a> documentation.
 -spec uniformSubroutinesuiv(Shadertype, Indices) -> 'ok' when Shadertype :: enum(),Indices :: [integer()].
 uniformSubroutinesuiv(Shadertype,Indices) ->
   IndicesLen = length(Indices),
@@ -15240,7 +7269,7 @@ uniformSubroutinesuiv(Shadertype,Indices) ->
 %% in use at shader stage  `Shadertype' . The value of the subroutine uniform is returned
 %% in  `Values' . 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformSubroutine.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetUniformSubroutine.xhtml">external</a> documentation.
 -spec getUniformSubroutineuiv(Shadertype, Location) -> {integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer(),integer()} when Shadertype :: enum(),Location :: integer().
 getUniformSubroutineuiv(Shadertype,Location) ->
   call(5754, <<Shadertype:?GLenum,Location:?GLint>>).
@@ -15253,26 +7282,7 @@ getUniformSubroutineuiv(Shadertype,Location) ->
 %% should be queried. The value or values of the parameter to be queried is returned in the
 %% variable whose address is given in  `Values' . 
 %%
-%%  If  `Pname'  is `?GL_ACTIVE_SUBROUTINE_UNIFORMS', the number of active subroutine
-%% variables in the stage is returned in  `Values' . 
-%%
-%%  If  `Pname'  is `?GL_ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS', the number of active
-%% subroutine variable locations in the stage is returned in  `Values' . 
-%%
-%%  If  `Pname'  is `?GL_ACTIVE_SUBROUTINES', the number of active subroutines in
-%% the stage is returned in  `Values' . 
-%%
-%%  If  `Pname'  is `?GL_ACTIVE_SUBROUTINE_UNIFORM_MAX_LENGTH', the length of the
-%% longest subroutine uniform for the stage is returned in  `Values' . 
-%%
-%%  If  `Pname'  is `?GL_ACTIVE_SUBROUTINE_MAX_LENGTH', the length of the longest
-%% subroutine name for the stage is returned in  `Values' . The returned name length includes
-%% space for the null-terminator. 
-%%
-%%  If there is no shader present of type  `Shadertype' , the returned value will be consistent
-%% with a shader containing no subroutines or subroutine uniforms. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetProgramStage.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetProgramStage.xhtml">external</a> documentation.
 -spec getProgramStageiv(Program, Shadertype, Pname) -> integer() when Program :: integer(),Shadertype :: enum(),Pname :: enum().
 getProgramStageiv(Program,Shadertype,Pname) ->
   call(5755, <<Program:?GLuint,Shadertype:?GLenum,Pname:?GLenum>>).
@@ -15286,20 +7296,7 @@ getProgramStageiv(Program,Shadertype,Pname) ->
 %%  `Values'  specifies the address of an array containing the new values for the parameter
 %% specified by  `Pname' . 
 %%
-%%  When  `Pname'  is `?GL_PATCH_VERTICES',  `Value'  specifies the number of
-%% vertices that will be used to make up a single patch primitive. Patch primitives are consumed
-%% by the tessellation control shader (if present) and subsequently used for tessellation.
-%% When primitives are specified using  {@link gl:drawArrays/3}  or a similar function, each
-%% patch will be made from  `Parameter'  control points, each represented by a vertex
-%% taken from the enabeld vertex arrays.  `Parameter'  must be greater than zero, and
-%% less than or equal to the value of `?GL_MAX_PATCH_VERTICES'. 
-%%
-%%  When  `Pname'  is `?GL_PATCH_DEFAULT_OUTER_LEVEL' or `?GL_PATCH_DEFAULT_INNER_LEVEL'
-%% ,  `Values'  contains the address of an array contiaining the default outer or inner
-%% tessellation levels, respectively, to be used when no tessellation control shader is present.
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPatchParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glPatchParameter.xhtml">external</a> documentation.
 -spec patchParameteri(Pname, Value) -> 'ok' when Pname :: enum(),Value :: integer().
 patchParameteri(Pname,Value) ->
   cast(5756, <<Pname:?GLenum,Value:?GLint>>).
@@ -15319,18 +7316,7 @@ patchParameterfv(Pname,Values) ->
 %% . If  `Id'  has not previously been bound, a new transform feedback object with name  `Id' 
 %%  and initialized with with the default transform state vector is created. 
 %%
-%%  In the initial state, a default transform feedback object is bound and treated as a transform
-%% feedback object with a name of zero. If the name zero is subsequently bound, the default
-%% transform feedback object is again bound to the GL state. 
-%%
-%%  While a transform feedback buffer object is bound, GL operations on the target to which
-%% it is bound affect the bound transform feedback object, and queries of the target to which
-%% a transform feedback object is bound return state from the bound object. When buffer objects
-%% are bound for transform feedback, they are attached to the currently bound transform feedback
-%% object. Buffer objects are used for trans- form feedback only if they are attached to
-%% the currently bound transform feedback object. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindTransformFeedback.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindTransformFeedback.xhtml">external</a> documentation.
 -spec bindTransformFeedback(Target, Id) -> 'ok' when Target :: enum(),Id :: integer().
 bindTransformFeedback(Target,Id) ->
   cast(5758, <<Target:?GLenum,Id:?GLuint>>).
@@ -15343,7 +7329,7 @@ bindTransformFeedback(Target,Id) ->
 %% and it has no contents. If an active transform feedback object is deleted, its name immediately
 %% becomes unused, but the underlying object is not deleted until it is no longer active. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteTransformFeedbacks.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteTransformFeedbacks.xhtml">external</a> documentation.
 -spec deleteTransformFeedbacks(Ids) -> 'ok' when Ids :: [integer()].
 deleteTransformFeedbacks(Ids) ->
   IdsLen = length(Ids),
@@ -15356,7 +7342,7 @@ deleteTransformFeedbacks(Ids) ->
 %% names in  `Ids' . These names are marked as used, for the purposes of ``gl:genTransformFeedbacks''
 %%  only, but they acquire transform feedback state only when they are first bound. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenTransformFeedbacks.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGenTransformFeedbacks.xhtml">external</a> documentation.
 -spec genTransformFeedbacks(N) -> [integer()] when N :: integer().
 genTransformFeedbacks(N) ->
   call(5760, <<N:?GLsizei>>).
@@ -15371,7 +7357,7 @@ genTransformFeedbacks(N) ->
 %% the name is not a transform feedback object and ``gl:isTransformFeedback'' returns `?GL_FALSE'
 %% . 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsTransformFeedback.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsTransformFeedback.xhtml">external</a> documentation.
 -spec isTransformFeedback(Id) -> 0|1 when Id :: integer().
 isTransformFeedback(Id) ->
   call(5761, <<Id:?GLuint>>).
@@ -15384,7 +7370,7 @@ isTransformFeedback(Id) ->
 %% to the object results in an error. However, a new transform feedback object may be bound
 %% while transform feedback is paused. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glPauseTransformFeedback.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glPauseTransformFeedback.xhtml">external</a> documentation.
 -spec pauseTransformFeedback() -> 'ok'.
 pauseTransformFeedback() ->
   cast(5762, <<>>).
@@ -15397,7 +7383,7 @@ pauseTransformFeedback() ->
 %% to the object results in an error. However, a new transform feedback object may be bound
 %% while transform feedback is paused. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glResumeTransformFeedback.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glResumeTransformFeedback.xhtml">external</a> documentation.
 -spec resumeTransformFeedback() -> 'ok'.
 resumeTransformFeedback() ->
   cast(5763, <<>>).
@@ -15411,7 +7397,7 @@ resumeTransformFeedback() ->
 %% zero the last time transform feedback was active on the transform feedback object named
 %% by  `Id' . 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawTransformFeedback.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawTransformFeedback.xhtml">external</a> documentation.
 -spec drawTransformFeedback(Mode, Id) -> 'ok' when Mode :: enum(),Id :: integer().
 drawTransformFeedback(Mode,Id) ->
   cast(5764, <<Mode:?GLenum,Id:?GLuint>>).
@@ -15426,17 +7412,14 @@ drawTransformFeedback(Mode,Id) ->
 %%  the last time transform feedback was active on the transform feedback object named by  `Id' 
 %% . 
 %%
-%%  Calling  {@link gl:drawTransformFeedback/2}  is equivalent to calling ``gl:drawTransformFeedbackStream''
-%%  with  `Stream'  set to zero. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawTransformFeedbackStream.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawTransformFeedbackStream.xhtml">external</a> documentation.
 -spec drawTransformFeedbackStream(Mode, Id, Stream) -> 'ok' when Mode :: enum(),Id :: integer(),Stream :: integer().
 drawTransformFeedbackStream(Mode,Id,Stream) ->
   cast(5765, <<Mode:?GLenum,Id:?GLuint,Stream:?GLuint>>).
 
 %% @doc glBeginQueryIndexe
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBeginQueryIndexe.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec beginQueryIndexed(Target, Index, Id) -> 'ok' when Target :: enum(),Index :: integer(),Id :: integer().
 beginQueryIndexed(Target,Index,Id) ->
   cast(5766, <<Target:?GLenum,Index:?GLuint,Id:?GLuint>>).
@@ -15450,70 +7433,7 @@ beginQueryIndexed(Target,Index,Id) ->
 %% , `?GL_PRIMITIVES_GENERATED', `?GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN', or `?GL_TIME_ELAPSED'
 %% . The behavior of the query object depends on its type and is as follows. 
 %%
-%%  `Index'  specifies the index of the query target and must be between a  `Target' -specific
-%% maximum. 
-%%
-%%  If  `Target'  is `?GL_SAMPLES_PASSED',  `Id'  must be an unused name, or the
-%% name of an existing occlusion query object. When ``gl:beginQueryIndexed'' is executed,
-%% the query object's samples-passed counter is reset to 0. Subsequent rendering will increment
-%% the counter for every sample that passes the depth test. If the value of `?GL_SAMPLE_BUFFERS'
-%%  is 0, then the samples-passed count is incremented by 1 for each fragment. If the value
-%% of `?GL_SAMPLE_BUFFERS' is 1, then the samples-passed count is incremented by the
-%% number of samples whose coverage bit is set. However, implementations, at their discression
-%% may instead increase the samples-passed count by the value of `?GL_SAMPLES' if any
-%% sample in the fragment is covered. When ``gl:endQueryIndexed'' is executed, the samples-passed
-%% counter is assigned to the query object's result value. This value can be queried by calling
-%%  {@link gl:getQueryObjectiv/2}  with  `Pname' `?GL_QUERY_RESULT'. When  `Target' 
-%% is `?GL_SAMPLES_PASSED',  `Index'  must be zero. 
-%%
-%%  If  `Target'  is `?GL_ANY_SAMPLES_PASSED',  `Id'  must be an unused name,
-%% or the name of an existing boolean occlusion query object. When ``gl:beginQueryIndexed''
-%% is executed, the query object's samples-passed flag is reset to `?GL_FALSE'. Subsequent
-%% rendering causes the flag to be set to `?GL_TRUE' if any sample passes the depth
-%% test. When ``gl:endQueryIndexed'' is executed, the samples-passed flag is assigned to
-%% the query object's result value. This value can be queried by calling  {@link gl:getQueryObjectiv/2} 
-%%  with  `Pname' `?GL_QUERY_RESULT'. When  `Target'  is `?GL_ANY_SAMPLES_PASSED'
-%% ,  `Index'  must be zero. 
-%%
-%%  If  `Target'  is `?GL_PRIMITIVES_GENERATED',  `Id'  must be an unused name,
-%% or the name of an existing primitive query object previously bound to the `?GL_PRIMITIVES_GENERATED'
-%%  query binding. When ``gl:beginQueryIndexed'' is executed, the query object's primitives-generated
-%% counter is reset to 0. Subsequent rendering will increment the counter once for every
-%% vertex that is emitted from the geometry shader to the stream given by  `Index' , or
-%% from the vertex shader if  `Index'  is zero and no geometry shader is present. When ``gl:endQueryIndexed''
-%%  is executed, the primitives-generated counter for stream  `Index'  is assigned to
-%% the query object's result value. This value can be queried by calling  {@link gl:getQueryObjectiv/2} 
-%%  with  `Pname' `?GL_QUERY_RESULT'. When  `Target'  is `?GL_PRIMITIVES_GENERATED'
-%% ,  `Index'  must be less than the value of `?GL_MAX_VERTEX_STREAMS'. 
-%%
-%%  If  `Target'  is `?GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN',  `Id'  must
-%% be an unused name, or the name of an existing primitive query object previously bound
-%% to the `?GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN' query binding. When ``gl:beginQueryIndexed''
-%%  is executed, the query object's primitives-written counter for the stream specified by  `Index' 
-%%  is reset to 0. Subsequent rendering will increment the counter once for every vertex
-%% that is written into the bound transform feedback buffer(s) for stream  `Index' . If
-%% transform feedback mode is not activated between the call to ``gl:beginQueryIndexed''
-%% and ``gl:endQueryIndexed'', the counter will not be incremented. When ``gl:endQueryIndexed''
-%%  is executed, the primitives-written counter for stream  `Index'  is assigned to the
-%% query object's result value. This value can be queried by calling  {@link gl:getQueryObjectiv/2} 
-%%  with  `Pname' `?GL_QUERY_RESULT'. When  `Target'  is `?GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN'
-%% ,  `Index'  must be less than the value of `?GL_MAX_VERTEX_STREAMS'. 
-%%
-%%  If  `Target'  is `?GL_TIME_ELAPSED',  `Id'  must be an unused name, or the
-%% name of an existing timer query object previously bound to the `?GL_TIME_ELAPSED'
-%% query binding. When ``gl:beginQueryIndexed'' is executed, the query object's time counter
-%% is reset to 0. When ``gl:endQueryIndexed'' is executed, the elapsed server time that
-%% has passed since the call to ``gl:beginQueryIndexed'' is written into the query object's
-%% time counter. This value can be queried by calling  {@link gl:getQueryObjectiv/2}  with  `Pname' 
-%% `?GL_QUERY_RESULT'. When  `Target'  is `?GL_TIME_ELAPSED',  `Index'  must
-%% be zero. 
-%%
-%%  Querying the `?GL_QUERY_RESULT' implicitly flushes the GL pipeline until the rendering
-%% delimited by the query object has completed and the result is available. `?GL_QUERY_RESULT_AVAILABLE'
-%%  can be queried to determine if the result is immediately available or if the rendering
-%% is not yet complete. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBeginQueryIndexed.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBeginQueryIndexed.xhtml">external</a> documentation.
 -spec endQueryIndexed(Target, Index) -> 'ok' when Target :: enum(),Index :: integer().
 endQueryIndexed(Target,Index) ->
   cast(5767, <<Target:?GLenum,Index:?GLuint>>).
@@ -15525,13 +7445,7 @@ endQueryIndexed(Target,Index) ->
 %% the index of the query object target and must be between zero and a target-specific maxiumum.
 %% 
 %%
-%%  `Pname'  names a specific query object target parameter. When  `Pname'  is `?GL_CURRENT_QUERY'
-%% , the name of the currently active query for the specified  `Index'  of  `Target' ,
-%% or zero if no query is active, will be placed in  `Params' . If  `Pname'  is `?GL_QUERY_COUNTER_BITS'
-%% , the implementation-dependent number of bits used to hold the result of queries for  `Target' 
-%%  is returned in  `Params' . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetQueryIndexed.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetQueryIndexed.xhtml">external</a> documentation.
 -spec getQueryIndexediv(Target, Index, Pname) -> integer() when Target :: enum(),Index :: integer(),Pname :: enum().
 getQueryIndexediv(Target,Index,Pname) ->
   call(5768, <<Target:?GLenum,Index:?GLuint,Pname:?GLenum>>).
@@ -15543,7 +7457,7 @@ getQueryIndexediv(Target,Index,Pname) ->
 %% subsequently be called and the implementation may at that time reallocate resources previously
 %% freed by the call to ``gl:releaseShaderCompiler''. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glReleaseShaderCompiler.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glReleaseShaderCompiler.xhtml">external</a> documentation.
 -spec releaseShaderCompiler() -> 'ok'.
 releaseShaderCompiler() ->
   cast(5769, <<>>).
@@ -15555,17 +7469,7 @@ releaseShaderCompiler() ->
 %% bytes of binary shader code stored in client memory.  `BinaryFormat'  specifies the
 %% format of the pre-compiled code. 
 %%
-%%  The binary image contained in  `Binary'  will be decoded according to the extension
-%% specification defining the specified  `BinaryFormat'  token. OpenGL does not define
-%% any specific binary formats, but it does provide a mechanism to obtain token vaues for
-%% such formats provided by such extensions. 
-%%
-%%  Depending on the types of the shader objects in  `Shaders' , ``gl:shaderBinary''
-%% will individually load binary vertex or fragment shaders, or load an executable binary
-%% that contains an optimized pair of vertex and fragment shaders stored in the same binary.
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glShaderBinary.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glShaderBinary.xhtml">external</a> documentation.
 -spec shaderBinary(Shaders, Binaryformat, Binary) -> 'ok' when Shaders :: [integer()],Binaryformat :: enum(),Binary :: binary().
 shaderBinary(Shaders,Binaryformat,Binary) ->
   ShadersLen = length(Shaders),
@@ -15583,17 +7487,7 @@ shaderBinary(Shaders,Binaryformat,Binary) ->
 %% `?GL_HIGH_FLOAT', `?GL_LOW_INT', `?GL_MEDIUM_INT', or `?GL_HIGH_INT'.
 %% 
 %%
-%%  `Range'  points to an array of two integers into which the format's numeric range
-%% will be returned. If min and max are the smallest values representable in the format,
-%% then the values returned are defined to be:  `Range' [0] = floor(log2(|min|)) and  `Range' 
-%% [1] = floor(log2(|max|)). 
-%%
-%%  `Precision'  specifies the address of an integer into which will be written the log2
-%% value of the number of bits of precision of the format. If the smallest representable
-%% value greater than 1 is 1 + `eps', then the integer addressed by  `Precision' 
-%% will contain floor(-log2(eps)). 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetShaderPrecisionFormat.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetShaderPrecisionFormat.xhtml">external</a> documentation.
 -spec getShaderPrecisionFormat(Shadertype, Precisiontype) -> {Range :: {integer(),integer()},Precision :: integer()} when Shadertype :: enum(),Precisiontype :: enum().
 getShaderPrecisionFormat(Shadertype,Precisiontype) ->
   call(5771, <<Shadertype:?GLenum,Precisiontype:?GLenum>>).
@@ -15606,7 +7500,7 @@ depthRangef(N,F) ->
 
 %% @doc glClearDepthf
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glClearDepthf.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec clearDepthf(D) -> 'ok' when D :: clamp().
 clearDepthf(D) ->
   cast(5773, <<D:?GLclampf>>).
@@ -15621,13 +7515,7 @@ clearDepthf(D) ->
 %% in the variable whose address is given by  `Length' . If  `Length'  is `?NULL',
 %% then no length is returned. 
 %%
-%%  The format of the program binary written into  `Binary'  is returned in the variable
-%% whose address is given by  `BinaryFormat' , and may be implementation dependent. The
-%% binary produced by the GL may subsequently be returned to the GL by calling  {@link gl:programBinary/3} 
-%% , with  `BinaryFormat'  and  `Length'  set to the values returned by ``gl:getProgramBinary''
-%% , and passing the returned binary data in the  `Binary'  parameter. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetProgramBinary.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetProgramBinary.xhtml">external</a> documentation.
 -spec getProgramBinary(Program, BufSize) -> {BinaryFormat :: enum(),Binary :: binary()} when Program :: integer(),BufSize :: integer().
 getProgramBinary(Program,BufSize) ->
   call(5774, <<Program:?GLuint,BufSize:?GLsizei>>).
@@ -15642,19 +7530,7 @@ getProgramBinary(Program,BufSize) ->
 %% are not met, loading the program binary will fail and  `Program' 's `?GL_LINK_STATUS'
 %%  will be set to `?GL_FALSE'. 
 %%
-%%  A program object's program binary is replaced by calls to  {@link gl:linkProgram/1}  or ``gl:programBinary''
-%% . When linking success or failure is concerned, ``gl:programBinary'' can be considered
-%% to perform an implicit linking operation.  {@link gl:linkProgram/1}  and ``gl:programBinary''
-%%  both set the program object's `?GL_LINK_STATUS' to `?GL_TRUE' or `?GL_FALSE'
-%% . 
-%%
-%%  A successful call to ``gl:programBinary'' will reset all uniform variables to their
-%% initial values. The initial value is either the value of the variable's initializer as
-%% specified in the original shader source, or zero if no initializer was present. Additionally,
-%% all vertex shader input and fragment shader output assignments that were in effect when
-%% the program was linked before saving are restored with ``gl:programBinary'' is called. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramBinary.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glProgramBinary.xhtml">external</a> documentation.
 -spec programBinary(Program, BinaryFormat, Binary) -> 'ok' when Program :: integer(),BinaryFormat :: enum(),Binary :: binary().
 programBinary(Program,BinaryFormat,Binary) ->
   send_bin(Binary),
@@ -15665,22 +7541,7 @@ programBinary(Program,BinaryFormat,Binary) ->
 %% ``gl:programParameter'' specifies a new value for the parameter nameed by  `Pname' 
 %% for the program object  `Program' . 
 %%
-%%  If  `Pname'  is `?GL_PROGRAM_BINARY_RETRIEVABLE_HINT',  `Value'  should be `?GL_FALSE'
-%%  or `?GL_TRUE' to indicate to the implementation the intention of the application
-%% to retrieve the program's binary representation with  {@link gl:getProgramBinary/2} . The
-%% implementation may use this information to store information that may be useful for a
-%% future query of the program's binary. It is recommended to set `?GL_PROGRAM_BINARY_RETRIEVABLE_HINT'
-%%  for the program to `?GL_TRUE' before calling  {@link gl:linkProgram/1} , and using
-%% the program at run-time if the binary is to be retrieved later. 
-%%
-%%  If  `Pname'  is `?GL_PROGRAM_SEPARABLE',  `Value'  must be `?GL_TRUE'
-%% or `?GL_FALSE' and indicates whether  `Program'  can be bound to individual pipeline
-%% stages via  {@link gl:useProgramStages/3} . A program's `?GL_PROGRAM_SEPARABLE' parameter
-%% must be set to `?GL_TRUE'`before' {@link gl:linkProgram/1}  is called in order
-%% for it to be usable with a program pipeline object. The initial state of `?GL_PROGRAM_SEPARABLE'
-%%  is `?GL_FALSE'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramParameter.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glProgramParameter.xhtml">external</a> documentation.
 -spec programParameteri(Program, Pname, Value) -> 'ok' when Program :: integer(),Pname :: enum(),Value :: integer().
 programParameteri(Program,Pname,Value) ->
   cast(5776, <<Program:?GLuint,Pname:?GLenum,Value:?GLint>>).
@@ -15697,15 +7558,7 @@ programParameteri(Program,Pname,Value) ->
 %% special value `?GL_ALL_SHADER_BITS' may be specified to indicate that all executables
 %% contained in  `Program'  should be installed in  `Pipeline' . 
 %%
-%%  If  `Program'  refers to a program object with a valid shader attached for an indicated
-%% shader stage, ``gl:useProgramStages'' installs the executable code for that stage in
-%% the indicated program pipeline object  `Pipeline' . If  `Program'  is zero, or refers
-%% to a program object with no valid shader executable for a given stage, it is as if the
-%% pipeline object has no programmable stage configured for the indicated shader stages. If  `Stages' 
-%%  contains bits other than those listed above, and is not equal to `?GL_ALL_SHADER_BITS'
-%% , an error is generated. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glUseProgramStages.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glUseProgramStages.xhtml">external</a> documentation.
 -spec useProgramStages(Pipeline, Stages, Program) -> 'ok' when Pipeline :: integer(),Stages :: integer(),Program :: integer().
 useProgramStages(Pipeline,Stages,Program) ->
   cast(5777, <<Pipeline:?GLuint,Stages:?GLbitfield,Program:?GLuint>>).
@@ -15717,14 +7570,14 @@ useProgramStages(Pipeline,Stages,Program) ->
 %% the active program pipeline object is the target of calls to  {@link gl:uniform1f/2}  when
 %% no program has been made current through a call to  {@link gl:useProgram/1} . 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glActiveShaderProgram.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glActiveShaderProgram.xhtml">external</a> documentation.
 -spec activeShaderProgram(Pipeline, Program) -> 'ok' when Pipeline :: integer(),Program :: integer().
 activeShaderProgram(Pipeline,Program) ->
   cast(5778, <<Pipeline:?GLuint,Program:?GLuint>>).
 
 %% @doc glCreateShaderProgramv
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glCreateShaderProgramv.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec createShaderProgramv(Type, Strings) -> integer() when Type :: enum(),Strings :: iolist().
 createShaderProgramv(Type,Strings) ->
   StringsTemp = list_to_binary([[Str|[0]] || Str <- Strings ]),
@@ -15738,17 +7591,7 @@ createShaderProgramv(Type,Strings) ->
 %% no program pipeline exists with name  `Pipeline'  then a new pipeline object is created
 %% with that name and initialized to the default state vector. 
 %%
-%%  When a program pipeline object is bound using ``gl:bindProgramPipeline'', any previous
-%% binding is broken and is replaced with a binding to the specified pipeline object. If  `Pipeline' 
-%%  is zero, the previous binding is broken and is not replaced, leaving no pipeline object
-%% bound. If no current program object has been established by  {@link gl:useProgram/1} , the
-%% program objects used for each stage and for uniform updates are taken from the bound program
-%% pipeline object, if any. If there is a current program object established by  {@link gl:useProgram/1} 
-%% , the bound program pipeline object has no effect on rendering or uniform updates. When
-%% a bound program pipeline object is used for rendering, individual shader executables are
-%% taken from its program objects. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindProgramPipeline.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindProgramPipeline.xhtml">external</a> documentation.
 -spec bindProgramPipeline(Pipeline) -> 'ok' when Pipeline :: integer().
 bindProgramPipeline(Pipeline) ->
   cast(5780, <<Pipeline:?GLuint>>).
@@ -15762,7 +7605,7 @@ bindProgramPipeline(Pipeline) ->
 %% the binding for that object reverts to zero and no program pipeline object becomes current.
 %% 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDeleteProgramPipelines.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDeleteProgramPipelines.xhtml">external</a> documentation.
 -spec deleteProgramPipelines(Pipelines) -> 'ok' when Pipelines :: [integer()].
 deleteProgramPipelines(Pipelines) ->
   PipelinesLen = length(Pipelines),
@@ -15775,7 +7618,7 @@ deleteProgramPipelines(Pipelines) ->
 %% names in  `Pipelines' . These names are marked as used, for the purposes of ``gl:genProgramPipelines''
 %%  only, but they acquire program pipeline state only when they are first bound. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGenProgramPipelines.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGenProgramPipelines.xhtml">external</a> documentation.
 -spec genProgramPipelines(N) -> [integer()] when N :: integer().
 genProgramPipelines(N) ->
   call(5782, <<N:?GLsizei>>).
@@ -15790,7 +7633,7 @@ genProgramPipelines(N) ->
 %% the name is not a program pipeline object and ``gl:isProgramPipeline'' returns `?GL_FALSE'
 %% . 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glIsProgramPipeline.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsProgramPipeline.xhtml">external</a> documentation.
 -spec isProgramPipeline(Pipeline) -> 0|1 when Pipeline :: integer().
 isProgramPipeline(Pipeline) ->
   call(5783, <<Pipeline:?GLuint>>).
@@ -15802,33 +7645,7 @@ isProgramPipeline(Pipeline) ->
 %% retrieve. The value of the parameter is written to the variable whose address is given
 %% by  `Params' . 
 %%
-%%  If  `Pname'  is `?GL_ACTIVE_PROGRAM', the name of the active program object of
-%% the program pipeline object is returned in  `Params' . 
-%%
-%%  If  `Pname'  is `?GL_VERTEX_SHADER', the name of the current program object for
-%% the vertex shader type of the program pipeline object is returned in  `Params' . 
-%%
-%%  If  `Pname'  is `?GL_TESS_CONTROL_SHADER', the name of the current program object
-%% for the tessellation control shader type of the program pipeline object is returned in  `Params' 
-%% . 
-%%
-%%  If  `Pname'  is `?GL_TESS_EVALUATION_SHADER', the name of the current program
-%% object for the tessellation evaluation shader type of the program pipeline object is returned
-%% in  `Params' . 
-%%
-%%  If  `Pname'  is `?GL_GEOMETRY_SHADER', the name of the current program object
-%% for the geometry shader type of the program pipeline object is returned in  `Params' .
-%% 
-%%
-%%  If  `Pname'  is `?GL_FRAGMENT_SHADER', the name of the current program object
-%% for the fragment shader type of the program pipeline object is returned in  `Params' .
-%% 
-%%
-%%  If  `Pname'  is `?GL_INFO_LOG_LENGTH', the length of the info log, including
-%% the null terminator, is returned in  `Params' . If there is no info log, zero is returned.
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetProgramPipeline.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetProgramPipeline.xhtml">external</a> documentation.
 -spec getProgramPipelineiv(Pipeline, Pname) -> integer() when Pipeline :: integer(),Pname :: enum().
 getProgramPipelineiv(Pipeline,Pname) ->
   call(5784, <<Pipeline:?GLuint,Pname:?GLenum>>).
@@ -15840,62 +7657,7 @@ getProgramPipelineiv(Pipeline,Pname) ->
 %% which should be a value returned by  {@link gl:getUniformLocation/2} . ``gl:programUniform''
 %%  operates on the program object specified by  `Program' .
 %%
-%% The commands ``gl:programUniform{1|2|3|4}{f|i|ui}'' are used to change the value of
-%% the uniform variable specified by  `Location'  using the values passed as arguments.
-%% The number specified in the command should match the number of components in the data
-%% type of the specified uniform variable (e.g., `1' for float, int, unsigned int, bool;
-%% `2' for vec2, ivec2, uvec2, bvec2, etc.). The suffix `f' indicates that floating-point
-%% values are being passed; the suffix `i' indicates that integer values are being passed;
-%% the suffix `ui' indicates that unsigned integer values are being passed, and this
-%% type should also match the data type of the specified uniform variable. The `i' variants
-%% of this function should be used to provide values for uniform variables defined as int, ivec2
-%% , ivec3, ivec4, or arrays of these. The `ui' variants of this function should be
-%% used to provide values for uniform variables defined as unsigned int, uvec2, uvec3, uvec4,
-%% or arrays of these. The `f' variants should be used to provide values for uniform
-%% variables of type float, vec2, vec3, vec4, or arrays of these. Either the `i', `ui'
-%%  or `f' variants may be used to provide values for uniform variables of type bool, bvec2
-%% , bvec3, bvec4, or arrays of these. The uniform variable will be set to false if the input
-%% value is 0 or 0.0f, and it will be set to true otherwise.
-%%
-%% All active uniform variables defined in a program object are initialized to 0 when the
-%% program object is linked successfully. They retain the values assigned to them by a call
-%% to ``gl:programUniform'' until the next successful link operation occurs on the program
-%% object, when they are once again initialized to 0.
-%%
-%% The commands ``gl:programUniform{1|2|3|4}{f|i|ui}v'' can be used to modify a single
-%% uniform variable or a uniform variable array. These commands pass a count and a pointer
-%% to the values to be loaded into a uniform variable or a uniform variable array. A count
-%% of 1 should be used if modifying the value of a single uniform variable, and a count of
-%% 1 or greater can be used to modify an entire array or part of an array. When loading `n'
-%%  elements starting at an arbitrary position `m' in a uniform variable array, elements
-%% `m' + `n' - 1 in the array will be replaced with the new values. If  `M'  +  `N' 
-%%  - 1 is larger than the size of the uniform variable array, values for all array elements
-%% beyond the end of the array will be ignored. The number specified in the name of the command
-%% indicates the number of components for each element in  `Value' , and it should match
-%% the number of components in the data type of the specified uniform variable (e.g., `1'
-%%  for float, int, bool; `2' for vec2, ivec2, bvec2, etc.). The data type specified
-%% in the name of the command must match the data type for the specified uniform variable
-%% as described previously for ``gl:programUniform{1|2|3|4}{f|i|ui}''.
-%%
-%% For uniform variable arrays, each element of the array is considered to be of the type
-%% indicated in the name of the command (e.g., ``gl:programUniform3f'' or ``gl:programUniform3fv''
-%%  can be used to load a uniform variable array of type vec3). The number of elements of
-%% the uniform variable array to be modified is specified by  `Count' 
-%%
-%% The commands ``gl:programUniformMatrix{2|3|4|2x3|3x2|2x4|4x2|3x4|4x3}fv''  are used
-%% to modify a matrix or an array of matrices. The numbers in the command name are interpreted
-%% as the dimensionality of the matrix. The number `2' indicates a 2 × 2 matrix (i.e.,
-%% 4 values), the number `3' indicates a 3 × 3 matrix (i.e., 9 values), and the number `4'
-%%  indicates a 4 × 4 matrix (i.e., 16 values). Non-square matrix dimensionality is explicit,
-%% with the first number representing the number of columns and the second number representing
-%% the number of rows. For example,  `2x4' indicates a 2 × 4 matrix with 2 columns and
-%% 4 rows (i.e., 8 values). If  `Transpose'  is `?GL_FALSE', each matrix is assumed
-%% to be supplied in column major order. If  `Transpose'  is `?GL_TRUE', each matrix
-%% is assumed to be supplied in row major order. The  `Count'  argument indicates the
-%% number of matrices to be passed. A count of 1 should be used if modifying the value of
-%% a single matrix, and a count greater than 1 can be used to modify an array of matrices.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glProgramUniform.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glProgramUniform.xhtml">external</a> documentation.
 -spec programUniform1i(Program, Location, V0) -> 'ok' when Program :: integer(),Location :: integer(),V0 :: integer().
 programUniform1i(Program,Location,V0) ->
   cast(5785, <<Program:?GLuint,Location:?GLint,V0:?GLint>>).
@@ -16269,15 +8031,7 @@ programUniformMatrix4x3dv(Program,Location,Transpose,Value) ->
 %% this as an opportunity to perform any internal shader modifications that may be required
 %% to ensure correct operation of the installed shaders given the current GL state. 
 %%
-%%  After a program pipeline has been validated, its validation status is set to `?GL_TRUE'
-%% . The validation status of a program pipeline object may be queried by calling  {@link gl:getProgramPipelineiv/2} 
-%%  with parameter `?GL_VALIDATE_STATUS'. 
-%%
-%%  If  `Pipeline'  is a name previously returned from a call to  {@link gl:genProgramPipelines/1} 
-%%  but that has not yet been bound by a call to  {@link gl:bindProgramPipeline/1} , a new program
-%% pipeline object is created with name  `Pipeline'  and the default state vector. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glValidateProgramPipeline.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glValidateProgramPipeline.xhtml">external</a> documentation.
 -spec validateProgramPipeline(Pipeline) -> 'ok' when Pipeline :: integer().
 validateProgramPipeline(Pipeline) ->
   cast(5835, <<Pipeline:?GLuint>>).
@@ -16291,38 +8045,35 @@ validateProgramPipeline(Pipeline) ->
 %% of characters written into  `InfoLog'  is returned in the integer whose address is
 %% given by  `Length' . If  `Length'  is `?NULL', no length is returned. 
 %%
-%%  The actual length of the info log for the program pipeline may be determined by calling  {@link gl:getProgramPipelineiv/2} 
-%%  with  `Pname'  set to `?GL_INFO_LOG_LENGTH'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetProgramPipelineInfoLog.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetProgramPipelineInfoLog.xhtml">external</a> documentation.
 -spec getProgramPipelineInfoLog(Pipeline, BufSize) -> string() when Pipeline :: integer(),BufSize :: integer().
 getProgramPipelineInfoLog(Pipeline,BufSize) ->
   call(5836, <<Pipeline:?GLuint,BufSize:?GLsizei>>).
 
 %% @doc glVertexAttribL
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribL.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec vertexAttribL1d(Index, X) -> 'ok' when Index :: integer(),X :: float().
 vertexAttribL1d(Index,X) ->
   cast(5837, <<Index:?GLuint,0:32,X:?GLdouble>>).
 
 %% @doc glVertexAttribL
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribL.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec vertexAttribL2d(Index, X, Y) -> 'ok' when Index :: integer(),X :: float(),Y :: float().
 vertexAttribL2d(Index,X,Y) ->
   cast(5838, <<Index:?GLuint,0:32,X:?GLdouble,Y:?GLdouble>>).
 
 %% @doc glVertexAttribL
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribL.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec vertexAttribL3d(Index, X, Y, Z) -> 'ok' when Index :: integer(),X :: float(),Y :: float(),Z :: float().
 vertexAttribL3d(Index,X,Y,Z) ->
   cast(5839, <<Index:?GLuint,0:32,X:?GLdouble,Y:?GLdouble,Z:?GLdouble>>).
 
 %% @doc glVertexAttribL
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribL.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec vertexAttribL4d(Index, X, Y, Z, W) -> 'ok' when Index :: integer(),X :: float(),Y :: float(),Z :: float(),W :: float().
 vertexAttribL4d(Index,X,Y,Z,W) ->
   cast(5840, <<Index:?GLuint,0:32,X:?GLdouble,Y:?GLdouble,Z:?GLdouble,W:?GLdouble>>).
@@ -16345,7 +8096,7 @@ vertexAttribL4dv(Index,{X,Y,Z,W}) ->  vertexAttribL4d(Index,X,Y,Z,W).
 
 %% @doc glVertexAttribLPointer
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribLPointer.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec vertexAttribLPointer(Index, Size, Type, Stride, Pointer) -> 'ok' when Index :: integer(),Size :: integer(),Type :: enum(),Stride :: integer(),Pointer :: offset()|mem().
 vertexAttribLPointer(Index,Size,Type,Stride,Pointer) when  is_integer(Pointer) ->
   cast(5841, <<Index:?GLuint,Size:?GLint,Type:?GLenum,Stride:?GLsizei,Pointer:?GLuint>>);
@@ -16355,14 +8106,14 @@ vertexAttribLPointer(Index,Size,Type,Stride,Pointer) ->
 
 %% @doc glGetVertexAttribL
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetVertexAttribL.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getVertexAttribLdv(Index, Pname) -> {float(),float(),float(),float()} when Index :: integer(),Pname :: enum().
 getVertexAttribLdv(Index,Pname) ->
   call(5843, <<Index:?GLuint,Pname:?GLenum>>).
 
 %% @doc glViewportArrayv
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glViewportArrayv.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec viewportArrayv(First, V) -> 'ok' when First :: integer(),V :: [{float(),float(),float(),float()}].
 viewportArrayv(First,V) ->
   VLen = length(V),
@@ -16383,27 +8134,7 @@ viewportArrayv(First,V) ->
 %% coordinates to window coordinates. Let  (x nd y nd) be normalized device coordinates. Then the window
 %% coordinates  (x w y w) are computed as follows: 
 %%
-%%  x w=(x nd+1) (width/2)+x
-%%
-%%  y w=(y nd+1) (height/2)+y
-%%
-%%  The location of the viewport's bottom left corner, given by ( x,  y) is clamped to be
-%% within the implementaiton-dependent viewport bounds range. The viewport bounds range [
-%% min,  max] can be determined by calling  {@link gl:getBooleanv/1}  with argument `?GL_VIEWPORT_BOUNDS_RANGE'
-%% . Viewport width and height are silently clamped to a range that depends on the implementation.
-%% To query this range, call  {@link gl:getBooleanv/1}  with argument `?GL_MAX_VIEWPORT_DIMS'. 
-%%
-%%  The precision with which the GL interprets the floating point viewport bounds is implementation-dependent
-%% and may be determined by querying the impementation-defined constant `?GL_VIEWPORT_SUBPIXEL_BITS'
-%% . 
-%%
-%%  Calling ``gl:viewportIndexedfv'' is equivalent to calling see `glViewportArray'
-%% with  `First'  set to  `Index' ,  `Count'  set to 1 and  `V'  passsed directly.
-%% ``gl:viewportIndexedf'' is equivalent to:  void glViewportIndexedf(GLuint index, GLfloat
-%% x, GLfloat y, GLfloat w, GLfloat h) { const float v[4] = { x, y, w, h }; glViewportArrayv(index,
-%% 1, v); }
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glViewportIndexed.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glViewportIndexed.xhtml">external</a> documentation.
 -spec viewportIndexedf(Index, X, Y, W, H) -> 'ok' when Index :: integer(),X :: float(),Y :: float(),W :: float(),H :: float().
 viewportIndexedf(Index,X,Y,W,H) ->
   cast(5845, <<Index:?GLuint,X:?GLfloat,Y:?GLfloat,W:?GLfloat,H:?GLfloat>>).
@@ -16416,7 +8147,7 @@ viewportIndexedfv(Index,{V1,V2,V3,V4}) ->
 
 %% @doc glScissorArrayv
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glScissorArrayv.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec scissorArrayv(First, V) -> 'ok' when First :: integer(),V :: [{integer(),integer(),integer(),integer()}].
 scissorArrayv(First,V) ->
   VLen = length(V),
@@ -16425,21 +8156,21 @@ scissorArrayv(First,V) ->
 
 %% @doc glScissorIndexe
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glScissorIndexe.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec scissorIndexed(Index, Left, Bottom, Width, Height) -> 'ok' when Index :: integer(),Left :: integer(),Bottom :: integer(),Width :: integer(),Height :: integer().
 scissorIndexed(Index,Left,Bottom,Width,Height) ->
   cast(5848, <<Index:?GLuint,Left:?GLint,Bottom:?GLint,Width:?GLsizei,Height:?GLsizei>>).
 
 %% @doc glScissorIndexe
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glScissorIndexe.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec scissorIndexedv(Index, V) -> 'ok' when Index :: integer(),V :: {integer(),integer(),integer(),integer()}.
 scissorIndexedv(Index,{V1,V2,V3,V4}) ->
   cast(5849, <<Index:?GLuint,V1:?GLint,V2:?GLint,V3:?GLint,V4:?GLint>>).
 
 %% @doc glDepthRangeArrayv
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDepthRangeArrayv.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec depthRangeArrayv(First, V) -> 'ok' when First :: integer(),V :: [{clamp(),clamp()}].
 depthRangeArrayv(First,V) ->
   VLen = length(V),
@@ -16448,7 +8179,7 @@ depthRangeArrayv(First,V) ->
 
 %% @doc glDepthRangeIndexe
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDepthRangeIndexe.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec depthRangeIndexed(Index, N, F) -> 'ok' when Index :: integer(),N :: clamp(),F :: clamp().
 depthRangeIndexed(Index,N,F) ->
   cast(5851, <<Index:?GLuint,0:32,N:?GLclampd,F:?GLclampd>>).
@@ -16467,7 +8198,7 @@ getDoublei_v(Target,Index) ->
 
 %% @doc glDebugMessageControlARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDebugMessageControlARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec debugMessageControlARB(Source, Type, Severity, Ids, Enabled) -> 'ok' when Source :: enum(),Type :: enum(),Severity :: enum(),Ids :: [integer()],Enabled :: 0|1.
 debugMessageControlARB(Source,Type,Severity,Ids,Enabled) ->
   IdsLen = length(Ids),
@@ -16476,7 +8207,7 @@ debugMessageControlARB(Source,Type,Severity,Ids,Enabled) ->
 
 %% @doc glDebugMessageInsertARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDebugMessageInsertARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec debugMessageInsertARB(Source, Type, Id, Severity, Buf) -> 'ok' when Source :: enum(),Type :: enum(),Id :: integer(),Severity :: enum(),Buf :: string().
 debugMessageInsertARB(Source,Type,Id,Severity,Buf) ->
   BufLen = length(Buf),
@@ -16484,14 +8215,14 @@ debugMessageInsertARB(Source,Type,Id,Severity,Buf) ->
 
 %% @doc glGetDebugMessageLogARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetDebugMessageLogARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getDebugMessageLogARB(Count, Bufsize) -> {integer(),Sources :: [enum()],Types :: [enum()],Ids :: [integer()],Severities :: [enum()],MessageLog :: [string()]} when Count :: integer(),Bufsize :: integer().
 getDebugMessageLogARB(Count,Bufsize) ->
   call(5856, <<Count:?GLuint,Bufsize:?GLsizei>>).
 
 %% @doc glGetGraphicsResetStatusARB
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetGraphicsResetStatusARB.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getGraphicsResetStatusARB() -> enum().
 getGraphicsResetStatusARB() ->
   call(5857, <<>>).
@@ -16504,17 +8235,7 @@ getGraphicsResetStatusARB() ->
 %% is an internal 32-bit integer counter that may be read by a vertex shader as `?gl_InstanceID'
 %% . 
 %%
-%% ``gl:drawArraysInstancedBaseInstance'' has the same effect as:  if ( mode or count is
-%% invalid ) generate appropriate error else { for (int i = 0; i &lt; primcount ; i++) {
-%% instanceID = i; glDrawArrays(mode, first, count); } instanceID = 0; }
-%%
-%%  Specific vertex attributes may be classified as `instanced' through the use of  {@link gl:vertexAttribDivisor/2} 
-%% . Instanced vertex attributes supply per-instance vertex data to the vertex shader. The
-%% index of the vertex fetched from the enabled instanced vertex attribute arrays is calculated
-%% as: |gl_ InstanceID/divisor|&amp;plus; baseInstance. Note that  `Baseinstance'  does not affect the shader-visible
-%% value of `?gl_InstanceID'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawArraysInstancedBaseInstance.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawArraysInstancedBaseInstance.xhtml">external</a> documentation.
 -spec drawArraysInstancedBaseInstance(Mode, First, Count, Primcount, Baseinstance) -> 'ok' when Mode :: enum(),First :: integer(),Count :: integer(),Primcount :: integer(),Baseinstance :: integer().
 drawArraysInstancedBaseInstance(Mode,First,Count,Primcount,Baseinstance) ->
   cast(5858, <<Mode:?GLenum,First:?GLint,Count:?GLsizei,Primcount:?GLsizei,Baseinstance:?GLuint>>).
@@ -16527,17 +8248,7 @@ drawArraysInstancedBaseInstance(Mode,First,Count,Primcount,Baseinstance) ->
 %% is an internal 32-bit integer counter that may be read by a vertex shader as `?gl_InstanceID'
 %% . 
 %%
-%% ``gl:drawElementsInstancedBaseInstance'' has the same effect as:  if (mode, count, or
-%% type is invalid ) generate appropriate error else { for (int i = 0; i &lt; primcount ;
-%% i++) { instanceID = i; glDrawElements(mode, count, type, indices); } instanceID = 0; }
-%%
-%%  Specific vertex attributes may be classified as `instanced' through the use of  {@link gl:vertexAttribDivisor/2} 
-%% . Instanced vertex attributes supply per-instance vertex data to the vertex shader. The
-%% index of the vertex fetched from the enabled instanced vertex attribute arrays is calculated
-%% as |gl_ InstanceID/divisor|&amp;plus; baseInstance. Note that  `Baseinstance'  does not affect the shader-visible
-%% value of `?gl_InstanceID'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawElementsInstancedBaseInstance.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawElementsInstancedBaseInstance.xhtml">external</a> documentation.
 -spec drawElementsInstancedBaseInstance(Mode, Count, Type, Indices, Primcount, Baseinstance) -> 'ok' when Mode :: enum(),Count :: integer(),Type :: enum(),Indices :: offset()|mem(),Primcount :: integer(),Baseinstance :: integer().
 drawElementsInstancedBaseInstance(Mode,Count,Type,Indices,Primcount,Baseinstance) when  is_integer(Indices) ->
   cast(5859, <<Mode:?GLenum,Count:?GLsizei,Type:?GLenum,Indices:?GLuint,Primcount:?GLsizei,Baseinstance:?GLuint>>);
@@ -16555,13 +8266,7 @@ drawElementsInstancedBaseInstance(Mode,Count,Type,Indices,Primcount,Baseinstance
 %% conditions). The operation is undefined if the sum would be negative. The  `Basevertex' 
 %%  has no effect on the shader-visible value of `?gl_VertexID'. 
 %%
-%%  Specific vertex attributes may be classified as `instanced' through the use of  {@link gl:vertexAttribDivisor/2} 
-%% . Instanced vertex attributes supply per-instance vertex data to the vertex shader. The
-%% index of the vertex fetched from the enabled instanced vertex attribute arrays is calculated
-%% as |gl_ InstanceID/divisor|&amp;plus; baseInstance. Note that  `Baseinstance'  does not affect the shader-visible
-%% value of `?gl_InstanceID'. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawElementsInstancedBaseVertexBaseInstance.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glDrawElementsInstancedBaseVertexBaseInstance.xhtml">external</a> documentation.
 -spec drawElementsInstancedBaseVertexBaseInstance(Mode, Count, Type, Indices, Primcount, Basevertex, Baseinstance) -> 'ok' when Mode :: enum(),Count :: integer(),Type :: enum(),Indices :: offset()|mem(),Primcount :: integer(),Basevertex :: integer(),Baseinstance :: integer().
 drawElementsInstancedBaseVertexBaseInstance(Mode,Count,Type,Indices,Primcount,Basevertex,Baseinstance) when  is_integer(Indices) ->
   cast(5861, <<Mode:?GLenum,Count:?GLsizei,Type:?GLenum,Indices:?GLuint,Primcount:?GLsizei,Basevertex:?GLint,Baseinstance:?GLuint>>);
@@ -16571,21 +8276,21 @@ drawElementsInstancedBaseVertexBaseInstance(Mode,Count,Type,Indices,Primcount,Ba
 
 %% @doc glDrawTransformFeedbackInstance
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawTransformFeedbackInstance.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec drawTransformFeedbackInstanced(Mode, Id, Primcount) -> 'ok' when Mode :: enum(),Id :: integer(),Primcount :: integer().
 drawTransformFeedbackInstanced(Mode,Id,Primcount) ->
   cast(5863, <<Mode:?GLenum,Id:?GLuint,Primcount:?GLsizei>>).
 
 %% @doc glDrawTransformFeedbackStreamInstance
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDrawTransformFeedbackStreamInstance.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec drawTransformFeedbackStreamInstanced(Mode, Id, Stream, Primcount) -> 'ok' when Mode :: enum(),Id :: integer(),Stream :: integer(),Primcount :: integer().
 drawTransformFeedbackStreamInstanced(Mode,Id,Stream,Primcount) ->
   cast(5864, <<Mode:?GLenum,Id:?GLuint,Stream:?GLuint,Primcount:?GLsizei>>).
 
 %% @doc glGetInternalformat
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glGetInternalformat.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec getInternalformativ(Target, Internalformat, Pname, BufSize) -> [integer()] when Target :: enum(),Internalformat :: enum(),Pname :: enum(),BufSize :: integer().
 getInternalformativ(Target,Internalformat,Pname,BufSize) ->
   call(5865, <<Target:?GLenum,Internalformat:?GLenum,Pname:?GLenum,BufSize:?GLsizei>>).
@@ -16599,55 +8304,7 @@ getInternalformativ(Target,Internalformat,Pname,BufSize) ->
 %% any existing binding to the image unit is broken.  `Level'  specifies the level of
 %% the texture to bind to the image unit. 
 %%
-%%  If  `Texture'  is the name of a one-, two-, or three-dimensional array texture, a
-%% cube map or cube map array texture, or a two-dimensional multisample array texture, then
-%% it is possible to bind either the entire array, or only a single layer of the array to
-%% the image unit. In such cases, if  `Layered'  is `?GL_TRUE', the entire array
-%% is attached to the image unit and  `Layer'  is ignored. However, if  `Layered'  is `?GL_FALSE'
-%%  then  `Layer'  specifies the layer of the array to attach to the image unit. 
-%%
-%%  `Access'  specifies the access types to be performed by shaders and may be set to `?GL_READ_ONLY'
-%% , `?GL_WRITE_ONLY', or `?GL_READ_WRITE' to indicate read-only, write-only or
-%% read-write access, respectively. Violation of the access type specified in  `Access' 
-%% (for example, if a shader writes to an image bound with  `Access'  set to `?GL_READ_ONLY'
-%% ) will lead to undefined results, possibly including program termination. 
-%%
-%%  `Format'  specifies the format that is to be used when performing formatted stores
-%% into the image from shaders.  `Format'  must be compatible with the texture's internal
-%% format and must be one of the formats listed in the following table. 
-%%
-%% <table><tbody><tr><td>` Image Unit Format '</td><td>` Format Qualifier '</td></tr>
-%% </tbody><tbody><tr><td>`?GL_RGBA32F'</td><td>rgba32f</td></tr><tr><td>`?GL_RGBA16F'
-%% </td><td>rgba16f</td></tr><tr><td>`?GL_RG32F'</td><td>rg32f</td></tr><tr><td>`?GL_RG16F'
-%% </td><td>rg16f</td></tr><tr><td>`?GL_R11F_G11F_B10F'</td><td>r11f_g11f_b10f</td></tr>
-%% <tr><td>`?GL_R32F'</td><td>r32f</td></tr><tr><td>`?GL_R16F'</td><td>r16f</td></tr>
-%% <tr><td>`?GL_RGBA32UI'</td><td>rgba32ui</td></tr><tr><td>`?GL_RGBA16UI'</td><td>
-%% rgba16ui</td></tr><tr><td>`?GL_RGB10_A2UI'</td><td>rgb10_a2ui</td></tr><tr><td>`?GL_RGBA8UI'
-%% </td><td>rgba8ui</td></tr><tr><td>`?GL_RG32UI'</td><td>rg32ui</td></tr><tr><td>`?GL_RG16UI'
-%% </td><td>rg16ui</td></tr><tr><td>`?GL_RG8UI'</td><td>rg8ui</td></tr><tr><td>`?GL_R32UI'
-%% </td><td>r32ui</td></tr><tr><td>`?GL_R16UI'</td><td>r16ui</td></tr><tr><td>`?GL_R8UI'
-%% </td><td>r8ui</td></tr><tr><td>`?GL_RGBA32I'</td><td>rgba32i</td></tr><tr><td>`?GL_RGBA16I'
-%% </td><td>rgba16i</td></tr><tr><td>`?GL_RGBA8I'</td><td>rgba8i</td></tr><tr><td>`?GL_RG32I'
-%% </td><td>rg32i</td></tr><tr><td>`?GL_RG16I'</td><td>rg16i</td></tr><tr><td>`?GL_RG8I'
-%% </td><td>rg8i</td></tr><tr><td>`?GL_R32I'</td><td>r32i</td></tr><tr><td>`?GL_R16I'
-%% </td><td>r16i</td></tr><tr><td>`?GL_R8I'</td><td>r8i</td></tr><tr><td>`?GL_RGBA16'
-%% </td><td>rgba16</td></tr><tr><td>`?GL_RGB10_A2'</td><td>rgb10_a2</td></tr><tr><td>`?GL_RGBA8'
-%% </td><td>rgba8</td></tr><tr><td>`?GL_RG16'</td><td>rg16</td></tr><tr><td>`?GL_RG8'
-%% </td><td>rg8</td></tr><tr><td>`?GL_R16'</td><td>r16</td></tr><tr><td>`?GL_R8'</td>
-%% <td>r8</td></tr><tr><td>`?GL_RGBA16_SNORM'</td><td>rgba16_snorm</td></tr><tr><td>`?GL_RGBA8_SNORM'
-%% </td><td>rgba8_snorm</td></tr><tr><td>`?GL_RG16_SNORM'</td><td>rg16_snorm</td></tr><tr>
-%% <td>`?GL_RG8_SNORM'</td><td>rg8_snorm</td></tr><tr><td>`?GL_R16_SNORM'</td><td>r16_snorm
-%% </td></tr><tr><td>`?GL_R8_SNORM'</td><td>r8_snorm</td></tr></tbody></table>
-%%
-%%  When a texture is bound to an image unit, the  `Format'  parameter for the image unit
-%% need not exactly match the texture internal format as long as the formats are considered
-%% compatible as defined in the OpenGL Specification. The matching criterion used for a given
-%% texture may be determined by calling  {@link gl:getTexParameterfv/2}  with  `Value'  set
-%% to `?GL_IMAGE_FORMAT_COMPATIBILITY_TYPE', with return values of `?GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE'
-%%  and `?GL_IMAGE_FORMAT_COMPATIBILITY_BY_CLASS', specifying matches by size and class,
-%% respectively. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glBindImageTexture.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glBindImageTexture.xhtml">external</a> documentation.
 -spec bindImageTexture(Unit, Texture, Level, Layered, Layer, Access, Format) -> 'ok' when Unit :: integer(),Texture :: integer(),Level :: integer(),Layered :: 0|1,Layer :: integer(),Access :: enum(),Format :: enum().
 bindImageTexture(Unit,Texture,Level,Layered,Layer,Access,Format) ->
   cast(5866, <<Unit:?GLuint,Texture:?GLuint,Level:?GLint,Layered:?GLboolean,0:24,Layer:?GLint,Access:?GLenum,Format:?GLenum>>).
@@ -16661,120 +8318,7 @@ bindImageTexture(Unit,Texture,Level,Layered,Layer,Access,Format) ->
 %% the set of operations that are synchronized with shader stores; the bits used in  `Barriers' 
 %%  are as follows: 
 %%
-%% 
-%%
-%% `?GL_VERTEX_ATTRIB_ARRAY_BARRIER_BIT':  If set, vertex data sourced from buffer objects
-%% after the barrier will reflect data written by shaders prior to the barrier. The set of
-%% buffer objects affected by this bit is derived from the buffer object bindings used for
-%% generic vertex attributes derived from the `?GL_VERTEX_ATTRIB_ARRAY_BUFFER' bindings.
-%% 
-%%
-%% `?GL_ELEMENT_ARRAY_BARRIER_BIT':  If set, vertex array indices sourced from buffer
-%% objects after the barrier will reflect data written by shaders prior to the barrier. The
-%% buffer objects affected by this bit are derived from the `?GL_ELEMENT_ARRAY_BUFFER'
-%% binding. 
-%%
-%% `?GL_UNIFORM_BARRIER_BIT':  Shader uniforms sourced from buffer objects after the
-%% barrier will reflect data written by shaders prior to the barrier. 
-%%
-%% `?GL_TEXTURE_FETCH_BARRIER_BIT':  Texture fetches from shaders, including fetches
-%% from buffer object memory via buffer textures, after the barrier will reflect data written
-%% by shaders prior to the barrier. 
-%%
-%% `?GL_SHADER_IMAGE_ACCESS_BARRIER_BIT':  Memory accesses using shader image load,
-%% store, and atomic built-in functions issued after the barrier will reflect data written
-%% by shaders prior to the barrier. Additionally, image stores and atomics issued after the
-%% barrier will not execute until all memory accesses (e.g., loads, stores, texture fetches,
-%% vertex fetches) initiated prior to the barrier complete. 
-%%
-%% `?GL_COMMAND_BARRIER_BIT':  Command data sourced from buffer objects by Draw*Indirect
-%% commands after the barrier will reflect data written by shaders prior to the barrier.
-%% The buffer objects affected by this bit are derived from the `?GL_DRAW_INDIRECT_BUFFER'
-%%  binding. 
-%%
-%% `?GL_PIXEL_BUFFER_BARRIER_BIT':  Reads and writes of buffer objects via the `?GL_PIXEL_PACK_BUFFER'
-%%  and `?GL_PIXEL_UNPACK_BUFFER' bindings (via  {@link gl:readPixels/7} ,  {@link gl:texSubImage1D/7} 
-%% , etc.) after the barrier will reflect data written by shaders prior to the barrier. Additionally,
-%% buffer object writes issued after the barrier will wait on the completion of all shader
-%% writes initiated prior to the barrier. 
-%%
-%% `?GL_TEXTURE_UPDATE_BARRIER_BIT':  Writes to a texture via ``gl:tex(Sub)Image*'', ``gl:copyTex(Sub)Image*''
-%% , ``gl:compressedTex(Sub)Image*'', and reads via  {@link gl:getTexImage/5}  after the barrier
-%% will reflect data written by shaders prior to the barrier. Additionally, texture writes
-%% from these commands issued after the barrier will not execute until all shader writes
-%% initiated prior to the barrier complete. 
-%%
-%% `?GL_BUFFER_UPDATE_BARRIER_BIT':  Reads or writes via  {@link gl:bufferSubData/4} ,  {@link gl:copyBufferSubData/5} 
-%% , or  {@link gl:getBufferSubData/4} , or to buffer object memory mapped by see `glMapBuffer'
-%%  or see `glMapBufferRange' after the barrier will reflect data written by shaders
-%% prior to the barrier. Additionally, writes via these commands issued after the barrier
-%% will wait on the completion of any shader writes to the same memory initiated prior to
-%% the barrier. 
-%%
-%% `?GL_FRAMEBUFFER_BARRIER_BIT':  Reads and writes via framebuffer object attachments
-%% after the barrier will reflect data written by shaders prior to the barrier. Additionally,
-%% framebuffer writes issued after the barrier will wait on the completion of all shader
-%% writes issued prior to the barrier. 
-%%
-%% `?GL_TRANSFORM_FEEDBACK_BARRIER_BIT':  Writes via transform feedback bindings after
-%% the barrier will reflect data written by shaders prior to the barrier. Additionally, transform
-%% feedback writes issued after the barrier will wait on the completion of all shader writes
-%% issued prior to the barrier. 
-%%
-%% `?GL_ATOMIC_COUNTER_BARRIER_BIT':  Accesses to atomic counters after the barrier
-%% will reflect writes prior to the barrier. 
-%%
-%%  If  `Barriers'  is `?GL_ALL_BARRIER_BITS', shader memory accesses will be synchronized
-%% relative to all the operations described above. 
-%%
-%%  Implementations may cache buffer object and texture image memory that could be written
-%% by shaders in multiple caches; for example, there may be separate caches for texture,
-%% vertex fetching, and one or more caches for shader memory accesses. Implementations are
-%% not required to keep these caches coherent with shader memory writes. Stores issued by
-%% one invocation may not be immediately observable by other pipeline stages or other shader
-%% invocations because the value stored may remain in a cache local to the processor executing
-%% the store, or because data overwritten by the store is still in a cache elsewhere in the
-%% system. When ``gl:memoryBarrier'' is called, the GL flushes and/or invalidates any caches
-%% relevant to the operations specified by the  `Barriers'  parameter to ensure consistent
-%% ordering of operations across the barrier. 
-%%
-%%  To allow for independent shader invocations to communicate by reads and writes to a common
-%% memory address, image variables in the OpenGL Shading Language may be declared as "coherent".
-%% Buffer object or texture image memory accessed through such variables may be cached only
-%% if caches are automatically updated due to stores issued by any other shader invocation.
-%% If the same address is accessed using both coherent and non-coherent variables, the accesses
-%% using variables declared as coherent will observe the results stored using coherent variables
-%% in other invocations. Using variables declared as "coherent" guarantees only that the
-%% results of stores will be immediately visible to shader invocations using similarly-declared
-%% variables; calling ``gl:memoryBarrier'' is required to ensure that the stores are visible
-%% to other operations. 
-%%
-%%  The following guidelines may be helpful in choosing when to use coherent memory accesses
-%% and when to use barriers. 
-%%
-%% Data that are read-only or constant may be accessed without using coherent variables or
-%% calling MemoryBarrier(). Updates to the read-only data via API calls such as BufferSubData
-%% will invalidate shader caches implicitly as required.
-%%
-%% Data that are shared between shader invocations at a fine granularity (e.g., written by
-%% one invocation, consumed by another invocation) should use coherent variables to read
-%% and write the shared data.
-%%
-%% Data written by one shader invocation and consumed by other shader invocations launched
-%% as a result of its execution ("dependent invocations") should use coherent variables in
-%% the producing shader invocation and call memoryBarrier() after the last write. The consuming
-%% shader invocation should also use coherent variables.
-%%
-%% Data written to image variables in one rendering pass and read by the shader in a later
-%% pass need not use coherent variables or memoryBarrier(). Calling MemoryBarrier() with
-%% the SHADER_IMAGE_ACCESS_BARRIER_BIT set in  `Barriers'  between passes is necessary.
-%%
-%% Data written by the shader in one rendering pass and read by another mechanism (e.g.,
-%% vertex or index buffer pulling) in a later pass need not use coherent variables or memoryBarrier().
-%% Calling ``gl:memoryBarrier'' with the appropriate bits set in  `Barriers'  between
-%% passes is necessary.
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glMemoryBarrier.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glMemoryBarrier.xhtml">external</a> documentation.
 -spec memoryBarrier(Barriers) -> 'ok' when Barriers :: integer().
 memoryBarrier(Barriers) ->
   cast(5867, <<Barriers:?GLbitfield>>).
@@ -16787,27 +8331,7 @@ memoryBarrier(Barriers) ->
 %% the image may still be modified, however, its storage requirements may not change. Such
 %% a texture is referred to as an `immutable-format' texture. 
 %%
-%%  Calling ``gl:texStorage1D'' is equivalent, assuming no errors are generated, to executing
-%% the following pseudo-code:  for (i = 0; i &lt; levels; i++) { glTexImage1D(target, i,
-%% internalformat, width, 0, format, type, NULL); width = max(1, (width / 2)); }
-%%
-%%  Since no texture data is actually provided, the values used in the pseudo-code for  `Format' 
-%%  and  `Type'  are irrelevant and may be considered to be any values that are legal
-%% for the chosen  `Internalformat'  enumerant.  `Internalformat'  must be one of the
-%% sized internal formats given in Table 1 below, one of the sized depth-component formats `?GL_DEPTH_COMPONENT32F'
-%% , `?GL_DEPTH_COMPONENT24', or `?GL_DEPTH_COMPONENT16', or one of the combined
-%% depth-stencil formats, `?GL_DEPTH32F_STENCIL8', or `?GL_DEPTH24_STENCIL8'. Upon
-%% success, the value of `?GL_TEXTURE_IMMUTABLE_FORMAT' becomes `?GL_TRUE'. The
-%% value of `?GL_TEXTURE_IMMUTABLE_FORMAT' may be discovered by calling  {@link gl:getTexParameterfv/2} 
-%%  with  `Pname'  set to `?GL_TEXTURE_IMMUTABLE_FORMAT'. No further changes to the
-%% dimensions or format of the texture object may be made. Using any command that might alter
-%% the dimensions or format of the texture object (such as  {@link gl:texImage1D/8}  or another
-%% call to ``gl:texStorage1D'') will result in the generation of a `?GL_INVALID_OPERATION'
-%%  error, even if it would not, in fact, alter the dimensions or format of the object. 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexStorage1D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexStorage1D.xhtml">external</a> documentation.
 -spec texStorage1D(Target, Levels, Internalformat, Width) -> 'ok' when Target :: enum(),Levels :: integer(),Internalformat :: enum(),Width :: integer().
 texStorage1D(Target,Levels,Internalformat,Width) ->
   cast(5868, <<Target:?GLenum,Levels:?GLsizei,Internalformat:?GLenum,Width:?GLsizei>>).
@@ -16820,39 +8344,7 @@ texStorage1D(Target,Levels,Internalformat,Width) ->
 %% proxy texture. The contents of the image may still be modified, however, its storage requirements
 %% may not change. Such a texture is referred to as an `immutable-format' texture. 
 %%
-%%  The behavior of ``gl:texStorage2D'' depends on the  `Target'  parameter. When  `Target' 
-%%  is `?GL_TEXTURE_2D', `?GL_PROXY_TEXTURE_2D', `?GL_TEXTURE_RECTANGLE', `?GL_PROXY_TEXTURE_RECTANGLE'
-%%  or `?GL_PROXY_TEXTURE_CUBE_MAP', calling ``gl:texStorage2D'' is equivalent, assuming
-%% no errors are generated, to executing the following pseudo-code:  for (i = 0; i &lt; levels;
-%% i++) { glTexImage2D(target, i, internalformat, width, height, 0, format, type, NULL);
-%% width = max(1, (width / 2)); height = max(1, (height / 2)); }
-%%
-%%  When  `Target'  is `?GL_TEXTURE_CUBE_MAP', ``gl:texStorage2D'' is equivalent
-%% to:  for (i = 0; i &lt; levels; i++) { for (face in (+X, -X, +Y, -Y, +Z, -Z)) { glTexImage2D(face,
-%% i, internalformat, width, height, 0, format, type, NULL); } width = max(1, (width / 2));
-%% height = max(1, (height / 2)); }
-%%
-%%  When  `Target'  is `?GL_TEXTURE_1D' or `?GL_TEXTURE_1D_ARRAY', ``gl:texStorage2D''
-%%  is equivalent to:  for (i = 0; i &lt; levels; i++) { glTexImage2D(target, i, internalformat,
-%% width, height, 0, format, type, NULL); width = max(1, (width / 2)); }
-%%
-%%  Since no texture data is actually provided, the values used in the pseudo-code for  `Format' 
-%%  and  `Type'  are irrelevant and may be considered to be any values that are legal
-%% for the chosen  `Internalformat'  enumerant.  `Internalformat'  must be one of the
-%% sized internal formats given in Table 1 below, one of the sized depth-component formats `?GL_DEPTH_COMPONENT32F'
-%% , `?GL_DEPTH_COMPONENT24', or `?GL_DEPTH_COMPONENT16', or one of the combined
-%% depth-stencil formats, `?GL_DEPTH32F_STENCIL8', or `?GL_DEPTH24_STENCIL8'. Upon
-%% success, the value of `?GL_TEXTURE_IMMUTABLE_FORMAT' becomes `?GL_TRUE'. The
-%% value of `?GL_TEXTURE_IMMUTABLE_FORMAT' may be discovered by calling  {@link gl:getTexParameterfv/2} 
-%%  with  `Pname'  set to `?GL_TEXTURE_IMMUTABLE_FORMAT'. No further changes to the
-%% dimensions or format of the texture object may be made. Using any command that might alter
-%% the dimensions or format of the texture object (such as  {@link gl:texImage2D/9}  or another
-%% call to ``gl:texStorage2D'') will result in the generation of a `?GL_INVALID_OPERATION'
-%%  error, even if it would not, in fact, alter the dimensions or format of the object. 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexStorage2D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexStorage2D.xhtml">external</a> documentation.
 -spec texStorage2D(Target, Levels, Internalformat, Width, Height) -> 'ok' when Target :: enum(),Levels :: integer(),Internalformat :: enum(),Width :: integer(),Height :: integer().
 texStorage2D(Target,Levels,Internalformat,Width,Height) ->
   cast(5869, <<Target:?GLenum,Levels:?GLsizei,Internalformat:?GLenum,Width:?GLsizei,Height:?GLsizei>>).
@@ -16866,50 +8358,21 @@ texStorage2D(Target,Levels,Internalformat,Width,Height) ->
 %% requirements may not change. Such a texture is referred to as an `immutable-format'
 %% texture. 
 %%
-%%  The behavior of ``gl:texStorage3D'' depends on the  `Target'  parameter. When  `Target' 
-%%  is `?GL_TEXTURE_3D', or `?GL_PROXY_TEXTURE_3D', calling ``gl:texStorage3D''
-%% is equivalent, assuming no errors are generated, to executing the following pseudo-code: 
-%% for (i = 0; i &lt; levels; i++) { glTexImage3D(target, i, internalformat, width, height,
-%% depth, 0, format, type, NULL); width = max(1, (width / 2)); height = max(1, (height /
-%% 2)); depth = max(1, (depth / 2)); }
-%%
-%%  When  `Target'  is `?GL_TEXTURE_2D_ARRAY', `?GL_PROXY_TEXTURE_2D_ARRAY', `?GL_TEXTURE_CUBE_MAP_ARRAY'
-%% , or `?GL_PROXY_TEXTURE_CUBE_MAP_ARRAY', ``gl:texStorage3D'' is equivalent to: 
-%% for (i = 0; i &lt; levels; i++) { glTexImage3D(target, i, internalformat, width, height,
-%% depth, 0, format, type, NULL); width = max(1, (width / 2)); height = max(1, (height /
-%% 2)); }
-%%
-%%  Since no texture data is actually provided, the values used in the pseudo-code for  `Format' 
-%%  and  `Type'  are irrelevant and may be considered to be any values that are legal
-%% for the chosen  `Internalformat'  enumerant.  `Internalformat'  must be one of the
-%% sized internal formats given in Table 1 below, one of the sized depth-component formats `?GL_DEPTH_COMPONENT32F'
-%% , `?GL_DEPTH_COMPONENT24', or `?GL_DEPTH_COMPONENT16', or one of the combined
-%% depth-stencil formats, `?GL_DEPTH32F_STENCIL8', or `?GL_DEPTH24_STENCIL8'. Upon
-%% success, the value of `?GL_TEXTURE_IMMUTABLE_FORMAT' becomes `?GL_TRUE'. The
-%% value of `?GL_TEXTURE_IMMUTABLE_FORMAT' may be discovered by calling  {@link gl:getTexParameterfv/2} 
-%%  with  `Pname'  set to `?GL_TEXTURE_IMMUTABLE_FORMAT'. No further changes to the
-%% dimensions or format of the texture object may be made. Using any command that might alter
-%% the dimensions or format of the texture object (such as  {@link gl:texImage3D/10}  or another
-%% call to ``gl:texStorage3D'') will result in the generation of a `?GL_INVALID_OPERATION'
-%%  error, even if it would not, in fact, alter the dimensions or format of the object. 
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glTexStorage3D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glTexStorage3D.xhtml">external</a> documentation.
 -spec texStorage3D(Target, Levels, Internalformat, Width, Height, Depth) -> 'ok' when Target :: enum(),Levels :: integer(),Internalformat :: enum(),Width :: integer(),Height :: integer(),Depth :: integer().
 texStorage3D(Target,Levels,Internalformat,Width,Height,Depth) ->
   cast(5870, <<Target:?GLenum,Levels:?GLsizei,Internalformat:?GLenum,Width:?GLsizei,Height:?GLsizei,Depth:?GLsizei>>).
 
 %% @doc glDepthBoundsEXT
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glDepthBoundsEXT.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec depthBoundsEXT(Zmin, Zmax) -> 'ok' when Zmin :: clamp(),Zmax :: clamp().
 depthBoundsEXT(Zmin,Zmax) ->
   cast(5871, <<Zmin:?GLclampd,Zmax:?GLclampd>>).
 
 %% @doc glStencilClearTagEXT
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/glStencilClearTagEXT.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">external</a> documentation.
 -spec stencilClearTagEXT(StencilTagBits, StencilClearTag) -> 'ok' when StencilTagBits :: integer(),StencilClearTag :: integer().
 stencilClearTagEXT(StencilTagBits,StencilClearTag) ->
   cast(5872, <<StencilTagBits:?GLsizei,StencilClearTag:?GLuint>>).
diff --git a/lib/wx/src/gen/glu.erl b/lib/wx/src/gen/glu.erl
index f641f41262..5e5f01874f 100644
--- a/lib/wx/src/gen/glu.erl
+++ b/lib/wx/src/gen/glu.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 2008-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2008-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -22,7 +22,7 @@
 %% This file is generated DO NOT EDIT
 
 %% @doc  A part of the standard OpenGL Utility api.
-%% See <a href="http://www.opengl.org/sdk/docs/man/">www.opengl.org</a>
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/">www.khronos.org</a>
 %%
 %% Booleans are represented by integers 0 and 1.
 
@@ -92,29 +92,7 @@ tesselate({Nx,Ny,Nz}, Vs) ->
 %% of decreasing resolutions called a mipmap. This is used for the antialiasing of texture
 %% mapped primitives. 
 %%
-%%  A return value of zero indicates success, otherwise a GLU error code is returned (see  {@link glu:errorString/1} 
-%% ). 
-%%
-%%  A series of mipmap levels from  `Base'  to  `Max'  is built by decimating   `Data' 
-%%  in half  until size   1×1 is reached. At each level, each texel in the halved mipmap
-%% level is an average of the corresponding two texels in the larger mipmap level.   {@link gl:texImage1D/8} 
-%%  is called to load these mipmap levels from  `Base'  to  `Max' . If  `Max'  is
-%% larger than the highest mipmap level for the texture of the specified size, then a GLU
-%% error code is returned (see  {@link glu:errorString/1} ) and nothing is loaded. 
-%%
-%%  For example, if  `Level'  is 2 and  `Width'  is 16, the following levels are possible:
-%%   16×1,   8×1,   4×1,  2×1,   1×1. These correspond to levels 2 through 6 respectively.
-%% If  `Base'  is 3 and  `Max'  is 5, then only mipmap levels   8×1,  4×1 and   2×1
-%% are loaded. However, if  `Max'  is 7, then an error is returned and nothing is loaded
-%% since  `Max'  is larger than the highest mipmap level which is, in  this case, 6. 
-%%
-%%  The highest mipmap level can be derived from the formula  log 2(width×2 level). 
-%%
-%%  See the  {@link gl:texImage1D/8}  reference page for a description of the acceptable values
-%% for  `Type'  parameter. See the  {@link gl:drawPixels/5}   reference page for a description
-%% of the acceptable values  for  `Level'  parameter. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluBuild1DMipmapLevels.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluBuild1DMipmapLevels.xml">external</a> documentation.
 -spec build1DMipmapLevels(Target, InternalFormat, Width, Format, Type, Level, Base, Max, Data) -> integer() when Target :: enum(),InternalFormat :: integer(),Width :: integer(),Format :: enum(),Type :: enum(),Level :: integer(),Base :: integer(),Max :: integer(),Data :: binary().
 build1DMipmapLevels(Target,InternalFormat,Width,Format,Type,Level,Base,Max,Data) ->
   send_bin(Data),
@@ -126,33 +104,7 @@ build1DMipmapLevels(Target,InternalFormat,Width,Format,Type,Level,Base,Max,Data)
 %% decreasing resolutions called a mipmap. This is used for the antialiasing of texture mapped
 %% primitives. 
 %%
-%%  A return value of zero indicates success, otherwise a GLU error code is returned (see  {@link glu:errorString/1} 
-%% ). 
-%%
-%%  Initially, the  `Width'  of  `Data'  is checked to see if it is a power of 2. If
-%% not, a copy of  `Data'  is scaled up or down to the nearest power of 2. (If  `Width' 
-%%  is exactly between powers of 2, then the copy of  `Data'  will scale upwards.) This
-%% copy will be used for subsequent mipmapping operations described below.  For example, if  `Width' 
-%%  is 57, then a copy of  `Data'  will scale up to 64 before mipmapping takes place. 
-%%
-%%  Then, proxy textures (see  {@link gl:texImage1D/8} ) are used to determine if the implementation
-%% can fit the requested texture. If not,  `Width'  is continually halved until it fits. 
-%%
-%%  Next, a series of mipmap levels is built by decimating a copy of  `Data'  in half
-%% until size   1×1 is reached. At each level, each texel in the halved mipmap level is an
-%% average of the corresponding two texels in the larger mipmap level. 
-%%
-%%  {@link gl:texImage1D/8}  is called to load each of these mipmap levels. Level 0 is a copy
-%% of  `Data' .  The highest level is  (log 2)(width). For example, if  `Width'  is 64 and the implementation
-%% can store a texture of this size, the following mipmap levels are built:   64×1,   32×1,
-%%   16×1,   8×1,  4×1,   2×1, and   1×1. These correspond to  levels 0 through 6, respectively.
-%% 
-%%
-%%  See the  {@link gl:texImage1D/8}  reference page for a description of the acceptable values
-%% for the  `Type'  parameter. See the  {@link gl:drawPixels/5}   reference page for a description
-%% of the acceptable values  for the  `Data'  parameter. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluBuild1DMipmaps.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluBuild1DMipmaps.xml">external</a> documentation.
 -spec build1DMipmaps(Target, InternalFormat, Width, Format, Type, Data) -> integer() when Target :: enum(),InternalFormat :: integer(),Width :: integer(),Format :: enum(),Type :: enum(),Data :: binary().
 build1DMipmaps(Target,InternalFormat,Width,Format,Type,Data) ->
   send_bin(Data),
@@ -164,32 +116,7 @@ build1DMipmaps(Target,InternalFormat,Width,Format,Type,Data) ->
 %% of decreasing resolutions called a mipmap. This is used for the antialiasing of texture
 %% mapped primitives. 
 %%
-%%  A return value of zero indicates success, otherwise a GLU error code is returned (see  {@link glu:errorString/1} 
-%% ). 
-%%
-%%  A series of mipmap levels from  `Base'  to  `Max'  is built by decimating   `Data' 
-%%  in half along both dimensions until size   1×1 is reached. At each level, each texel
-%% in the halved mipmap level is an average of the corresponding four texels in the larger
-%% mipmap level. (In the case of rectangular images, the decimation will ultimately  reach
-%% an   N×1 or   1×N configuration. Here, two texels are averaged instead.)  {@link gl:texImage2D/9} 
-%%  is called to load these mipmap levels from  `Base'  to  `Max' . If  `Max'  is
-%% larger than the highest mipmap level for the texture of the specified size, then a GLU
-%% error code is returned (see  {@link glu:errorString/1} ) and nothing is loaded. 
-%%
-%%  For example, if  `Level'  is 2 and  `Width'  is 16 and  `Height'  is 8, the
-%% following levels are possible:   16×8,   8×4,   4×2,  2×1,   1×1. These correspond to
-%% levels 2 through 6 respectively. If  `Base'  is 3 and  `Max'  is 5, then only mipmap
-%% levels  8×4,   4×2, and   2×1 are loaded. However, if  `Max'  is 7, then an error is
-%% returned and nothing is loaded since  `Max'  is larger than the highest mipmap level
-%% which is, in this case, 6. 
-%%
-%%  The highest mipmap level can be derived from the formula  log 2(max(width height)×2 level). 
-%%
-%%  See the  {@link gl:texImage1D/8}  reference page for a description of the acceptable values
-%% for  `Format'  parameter. See the  {@link gl:drawPixels/5}   reference page for a description
-%% of the acceptable values  for  `Type'  parameter. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluBuild2DMipmapLevels.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluBuild2DMipmapLevels.xml">external</a> documentation.
 -spec build2DMipmapLevels(Target, InternalFormat, Width, Height, Format, Type, Level, Base, Max, Data) -> integer() when Target :: enum(),InternalFormat :: integer(),Width :: integer(),Height :: integer(),Format :: enum(),Type :: enum(),Level :: integer(),Base :: integer(),Max :: integer(),Data :: binary().
 build2DMipmapLevels(Target,InternalFormat,Width,Height,Format,Type,Level,Base,Max,Data) ->
   send_bin(Data),
@@ -201,40 +128,7 @@ build2DMipmapLevels(Target,InternalFormat,Width,Height,Format,Type,Level,Base,Ma
 %% decreasing resolutions called a mipmap. This is used for the antialiasing of texture-mapped
 %% primitives. 
 %%
-%%  A return value of zero indicates success, otherwise a GLU error code is returned (see  {@link glu:errorString/1} 
-%% ). 
-%%
-%%  Initially, the  `Width'  and  `Height'  of  `Data'  are checked to see if they
-%% are a power of 2. If not, a copy of  `Data'  (not  `Data' ), is scaled up or down
-%% to the nearest power of 2. This copy will be used for subsequent mipmapping operations
-%% described below. (If  `Width'  or  `Height'  is exactly between powers of 2, then
-%% the copy of  `Data'  will scale upwards.) For example, if  `Width'  is 57 and  `Height' 
-%%  is 23, then a copy of  `Data'  will scale up to 64 in  `Width'  and down to 16
-%% in depth, before mipmapping takes place. 
-%%
-%%  Then, proxy textures (see  {@link gl:texImage2D/9} ) are used to determine if the implementation
-%% can fit the requested texture. If not, both dimensions are continually halved until it
-%% fits. (If the OpenGL version is (&lt;= 1.0, both maximum texture dimensions are clamped
-%% to the value returned by  {@link gl:getBooleanv/1}  with the argument `?GLU_MAX_TEXTURE_SIZE'
-%% .) 
-%%
-%%  Next, a series of mipmap levels is built by decimating a copy of  `Data'  in half
-%% along both dimensions until size   1×1 is reached. At each level, each texel in the halved
-%% mipmap level is an average of the corresponding four texels in the larger mipmap level.
-%% (In the case of rectangular images, the decimation will ultimately reach an   N×1 or  1×N
-%% configuration. Here, two texels are averaged instead.) 
-%%
-%%  {@link gl:texImage2D/9}  is called to load each of these mipmap levels. Level 0 is a copy
-%% of  `Data' . The highest level is (log 2)(max(width height)). For example, if  `Width'  is 64 and  `Height' 
-%%  is 16 and the implementation can store a texture of this size, the following mipmap levels
-%% are built:   64×16,   32×8,   16×4,  8×2,   4×1,   2×1, and   1×1 These correspond to
-%% levels 0 through 6, respectively. 
-%%
-%%  See the  {@link gl:texImage1D/8}  reference page for a description of the acceptable values
-%% for  `Format'  parameter. See the  {@link gl:drawPixels/5}   reference page for a description
-%% of the acceptable values  for  `Type'  parameter. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluBuild2DMipmaps.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluBuild2DMipmaps.xml">external</a> documentation.
 -spec build2DMipmaps(Target, InternalFormat, Width, Height, Format, Type, Data) -> integer() when Target :: enum(),InternalFormat :: integer(),Width :: integer(),Height :: integer(),Format :: enum(),Type :: enum(),Data :: binary().
 build2DMipmaps(Target,InternalFormat,Width,Height,Format,Type,Data) ->
   send_bin(Data),
@@ -246,32 +140,7 @@ build2DMipmaps(Target,InternalFormat,Width,Height,Format,Type,Data) ->
 %% maps of decreasing resolutions called a mipmap. This is used for the antialiasing of texture
 %% mapped primitives. 
 %%
-%%  A return value of zero indicates success, otherwise a GLU error code is returned (see  {@link glu:errorString/1} 
-%% ). 
-%%
-%%  A series of mipmap levels from  `Base'  to  `Max'  is built by decimating  `Data' 
-%%  in half along both dimensions until size  1×1×1 is reached. At each level, each texel
-%% in the halved mipmap level is an average of the corresponding eight texels in the larger
-%% mipmap level. (If exactly one of the dimensions is 1, four texels are averaged. If exactly
-%% two of the dimensions are 1, two texels are averaged.)  {@link gl:texImage3D/10}  is called
-%% to load these mipmap levels from  `Base'  to  `Max' . If  `Max'  is larger than
-%% the highest mipmap level for the texture of the specified size, then a GLU error code
-%% is returned (see  {@link glu:errorString/1} ) and nothing is loaded. 
-%%
-%%  For example, if  `Level'  is 2 and  `Width'  is 16,  `Height'  is 8 and  `Depth' 
-%%  is 4, the following levels are possible:   16×8×4,   8×4×2,  4×2×1,   2×1×1,  1×1×1.
-%% These correspond to levels 2 through 6 respectively. If  `Base'  is 3 and  `Max' 
-%% is 5, then only mipmap levels   8×4×2,  4×2×1, and   2×1×1 are loaded. However, if  `Max' 
-%%  is 7, then an error is returned and nothing is loaded, since  `Max'  is larger than
-%% the highest mipmap level which is, in this case, 6. 
-%%
-%%  The highest mipmap level can be derived from the formula  log 2(max(width height depth)×2 level). 
-%%
-%%  See the  {@link gl:texImage1D/8}  reference page for a description of the acceptable values
-%% for  `Format'  parameter. See the  {@link gl:drawPixels/5}   reference page for a description
-%% of the acceptable values  for  `Type'  parameter. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluBuild3DMipmapLevels.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluBuild3DMipmapLevels.xml">external</a> documentation.
 -spec build3DMipmapLevels(Target, InternalFormat, Width, Height, Depth, Format, Type, Level, Base, Max, Data) -> integer() when Target :: enum(),InternalFormat :: integer(),Width :: integer(),Height :: integer(),Depth :: integer(),Format :: enum(),Type :: enum(),Level :: integer(),Base :: integer(),Max :: integer(),Data :: binary().
 build3DMipmapLevels(Target,InternalFormat,Width,Height,Depth,Format,Type,Level,Base,Max,Data) ->
   send_bin(Data),
@@ -283,39 +152,7 @@ build3DMipmapLevels(Target,InternalFormat,Width,Height,Depth,Format,Type,Level,B
 %% of decreasing resolutions called a mipmap. This is used for the antialiasing of texture-mapped
 %% primitives. 
 %%
-%%  A return value of zero indicates success, otherwise a GLU error code is returned (see  {@link glu:errorString/1} 
-%% ). 
-%%
-%%  Initially, the  `Width' ,  `Height'  and  `Depth'  of  `Data'  are checked
-%% to see if they are a power of 2. If not, a copy of  `Data'  is made and scaled up or
-%% down to the nearest power of 2. (If  `Width' ,  `Height' , or  `Depth'  is exactly
-%% between powers of 2, then the copy of  `Data'  will scale upwards.) This copy will
-%% be used for subsequent mipmapping operations described below. For example, if  `Width' 
-%% is 57,  `Height'  is 23, and  `Depth'  is 24, then a copy of  `Data'  will scale
-%% up to 64 in width, down to 16 in height, and up to 32 in depth before mipmapping takes
-%% place. 
-%%
-%%  Then, proxy textures (see  {@link gl:texImage3D/10} ) are used to determine if the implementation
-%% can fit the requested texture. If not, all three dimensions are continually halved until
-%% it fits.  
-%%
-%%  Next, a series of mipmap levels is built by decimating a copy of  `Data'  in half
-%% along all three dimensions until size   1×1×1 is reached. At each level, each texel in
-%% the halved mipmap level is an average of the corresponding eight texels in the larger
-%% mipmap level. (If exactly one of the dimensions is 1, four texels are averaged. If exactly
-%% two of the dimensions are 1, two texels are averaged.) 
-%%
-%%  {@link gl:texImage3D/10}  is called to load each of these mipmap levels. Level 0 is a copy
-%% of  `Data' . The highest level is (log 2)(max(width height depth)). For example, if  `Width'  is 64,  `Height' 
-%% is 16, and  `Depth'  is 32, and the implementation can store a texture of this size,
-%% the following mipmap levels are built:   64×16×32,  32×8×16,   16×4×8,  8×2×4,   4×1×2, 
-%% 2×1×1, and   1×1×1. These correspond to levels 0 through 6, respectively. 
-%%
-%%  See the  {@link gl:texImage1D/8}  reference page for a description of the acceptable values
-%% for  `Format'  parameter. See the  {@link gl:drawPixels/5}   reference page for a description
-%% of the acceptable values  for  `Type'  parameter. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluBuild3DMipmaps.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluBuild3DMipmaps.xml">external</a> documentation.
 -spec build3DMipmaps(Target, InternalFormat, Width, Height, Depth, Format, Type, Data) -> integer() when Target :: enum(),InternalFormat :: integer(),Width :: integer(),Height :: integer(),Depth :: integer(),Format :: enum(),Type :: enum(),Data :: binary().
 build3DMipmaps(Target,InternalFormat,Width,Height,Depth,Format,Type,Data) ->
   send_bin(Data),
@@ -326,12 +163,7 @@ build3DMipmaps(Target,InternalFormat,Width,Height,Depth,Format,Type,Data) ->
 %% ``glu:checkExtension'' returns `?GLU_TRUE' if  `ExtName'  is supported otherwise
 %%  `?GLU_FALSE' is returned. 
 %%
-%%  This is used to check for the presence for OpenGL, GLU, or GLX extension names by passing
-%% the extension strings returned by  {@link gl:getString/1} ,   {@link glu:getString/1} , see `glXGetClientString'
-%% , see `glXQueryExtensionsString', or see `glXQueryServerString', respectively,
-%% as  `ExtString' . 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluCheckExtension.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluCheckExtension.xml">external</a> documentation.
 -spec checkExtension(ExtName, ExtString) -> 0|1 when ExtName :: string(),ExtString :: string().
 checkExtension(ExtName,ExtString) ->
   ExtNameLen = length(ExtName),
@@ -345,19 +177,7 @@ checkExtension(ExtName,ExtString) ->
 %% is subdivided around the `z' axis into slices and along the  `z' axis into stacks.
 %% 
 %%
-%%  Note that if  `Top'  is set to 0.0, this routine generates a cone. 
-%%
-%%  If the orientation is set to `?GLU_OUTSIDE'  (with  {@link glu:quadricOrientation/2} ),
-%% then any generated normals point away from the `z' axis. Otherwise, they point toward
-%% the  `z' axis. 
-%%
-%%  If texturing is turned on (with  {@link glu:quadricTexture/2} ), then texture  coordinates
-%% are generated so that `t' ranges linearly from 0.0  at `z' = 0 to 1.0 at `z'
-%%  =  `Height' , and `s'  ranges from 0.0 at the +`y' axis, to 0.25 at the +`x'
-%%  axis,  to 0.5 at the -`y' axis, to 0.75 at the -`x' axis,  and back to 1.0
-%% at the +`y' axis. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluCylinder.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluCylinder.xml">external</a> documentation.
 -spec cylinder(Quad, Base, Top, Height, Slices, Stacks) -> 'ok' when Quad :: integer(),Base :: float(),Top :: float(),Height :: float(),Slices :: integer(),Stacks :: integer().
 cylinder(Quad,Base,Top,Height,Slices,Stacks) ->
   cast(5017, <<Quad:?GLUquadric,Base:?GLdouble,Top:?GLdouble,Height:?GLdouble,Slices:?GLint,Stacks:?GLint>>).
@@ -368,7 +188,7 @@ cylinder(Quad,Base,Top,Height,Slices,Stacks) ->
 %% and frees any memory it uses.  Once ``glu:deleteQuadric'' has been called,  `Quad' 
 %% cannot be used again. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluDeleteQuadric.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluDeleteQuadric.xml">external</a> documentation.
 -spec deleteQuadric(Quad) -> 'ok' when Quad :: integer().
 deleteQuadric(Quad) ->
   cast(5018, <<Quad:?GLUquadric>>).
@@ -381,17 +201,7 @@ deleteQuadric(Quad) ->
 %% slices (like pizza slices) and also about the `z' axis into rings  (as specified by  `Slices' 
 %%  and  `Loops' , respectively). 
 %%
-%%  With respect to orientation, the +`z' side of the disk is considered to be  ``outside''
-%% (see  {@link glu:quadricOrientation/2} ). This means that if the orientation is set to `?GLU_OUTSIDE'
-%% , then any normals generated  point along the +`z' axis. Otherwise, they point along
-%% the -`z'  axis. 
-%%
-%%  If texturing has been turned on (with  {@link glu:quadricTexture/2} ),  texture coordinates
-%% are generated linearly such that where   r=outer, the value at (`r', 0, 0) is  (1,
-%% 0.5), at (0, `r', 0) it is (0.5, 1), at (-`r', 0, 0)  it is (0, 0.5), and  at
-%% (0, -`r', 0) it is (0.5, 0). 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluDisk.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluDisk.xml">external</a> documentation.
 -spec disk(Quad, Inner, Outer, Slices, Loops) -> 'ok' when Quad :: integer(),Inner :: float(),Outer :: float(),Slices :: integer(),Loops :: integer().
 disk(Quad,Inner,Outer,Slices,Loops) ->
   cast(5019, <<Quad:?GLUquadric,Inner:?GLdouble,Outer:?GLdouble,Slices:?GLint,Loops:?GLint>>).
@@ -402,12 +212,7 @@ disk(Quad,Inner,Outer,Slices,Loops) ->
 %% is in ISO Latin 1 format. For example, ``glu:errorString''(`?GLU_OUT_OF_MEMORY')
 %% returns the string  `out of memory'. 
 %%
-%%  The standard GLU error codes are `?GLU_INVALID_ENUM',  `?GLU_INVALID_VALUE',
-%% and `?GLU_OUT_OF_MEMORY'. Certain other GLU functions can return specialized error
-%% codes through callbacks. See the  {@link gl:getError/0}  reference page for the list of 
-%% GL error codes. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluErrorString.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluErrorString.xml">external</a> documentation.
 -spec errorString(Error) -> string() when Error :: enum().
 errorString(Error) ->
   call(5020, <<Error:?GLenum>>).
@@ -417,25 +222,7 @@ errorString(Error) ->
 %% ``glu:getString'' returns a pointer to a static string describing the  GLU version or
 %% the GLU extensions that are supported. 
 %%
-%%  The version number is one of the following forms:  
-%%
-%% `major_number.minor_number'`major_number.minor_number.release_number'.  
-%%
-%%  The version string is of the following form:  
-%%
-%% `version number&lt;space&gt;vendor-specific information'
-%%
-%%  Vendor-specific information is optional. Its format and contents depend on the implementation.
-%% 
-%%
-%%  The standard GLU contains a basic set of features and capabilities. If a company or group
-%% of companies wish to support other features, these may be included as extensions to the
-%% GLU.  If  `Name'  is  `?GLU_EXTENSIONS', then ``glu:getString'' returns a space-separated
-%% list of names of supported GLU extensions. (Extension names never contain spaces.) 
-%%
-%%  All strings are null-terminated. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluGetString.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluGetString.xml">external</a> documentation.
 -spec getString(Name) -> string() when Name :: enum().
 getString(Name) ->
   call(5021, <<Name:?GLenum>>).
@@ -445,31 +232,7 @@ getString(Name) ->
 %% ``glu:lookAt'' creates a viewing matrix derived from an eye point, a reference point
 %% indicating the center of the scene, and an `UP' vector.  
 %%
-%%  The matrix maps the reference point to the negative `z' axis and the eye point to
-%% the origin. When a typical projection matrix is used, the center of the scene therefore
-%% maps to the center of the viewport. Similarly, the direction described by the `UP'
-%% vector projected onto the viewing plane is mapped to the positive `y'  axis so that
-%% it points upward in the viewport. The `UP' vector must not be parallel to the line
-%% of sight from the eye point to the reference point. 
-%%
-%%  Let  
-%%
-%%  F=(centerX-eyeX centerY-eyeY centerZ-eyeZ)
-%%
-%%  Let `UP' be the vector  (upX upY upZ).  
-%%
-%%  Then normalize as follows:   f=F/(||F||)
-%%
-%%  UP"=UP/(||UP||)
-%%
-%%  Finally, let   s=f×UP", and   u=s×f. 
-%%
-%%  M is then constructed as follows:  M=(s[0] s[1] s[2] 0 u[0] u[1] u[2] 0-f[0]-f[1]-f[2] 0 0 0 0 1)
-%%
-%%  and ``glu:lookAt'' is equivalent to   glMultMatrixf(M); glTranslated(-eyex, -eyey,
-%% -eyez); 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluLookAt.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluLookAt.xml">external</a> documentation.
 -spec lookAt(EyeX, EyeY, EyeZ, CenterX, CenterY, CenterZ, UpX, UpY, UpZ) -> 'ok' when EyeX :: float(),EyeY :: float(),EyeZ :: float(),CenterX :: float(),CenterY :: float(),CenterZ :: float(),UpX :: float(),UpY :: float(),UpZ :: float().
 lookAt(EyeX,EyeY,EyeZ,CenterX,CenterY,CenterZ,UpX,UpY,UpZ) ->
   cast(5022, <<EyeX:?GLdouble,EyeY:?GLdouble,EyeZ:?GLdouble,CenterX:?GLdouble,CenterY:?GLdouble,CenterZ:?GLdouble,UpX:?GLdouble,UpY:?GLdouble,UpZ:?GLdouble>>).
@@ -480,7 +243,7 @@ lookAt(EyeX,EyeY,EyeZ,CenterX,CenterY,CenterZ,UpX,UpY,UpZ) ->
 %% must be referred to when calling quadrics rendering and control functions. A return value
 %% of 0 means that there is not enough memory to allocate the object. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluNewQuadric.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluNewQuadric.xml">external</a> documentation.
 -spec newQuadric() -> integer().
 newQuadric() ->
   call(5023, <<>>).
@@ -490,7 +253,7 @@ newQuadric() ->
 %% ``glu:ortho2D'' sets up a two-dimensional orthographic viewing region.  This is equivalent
 %% to calling  {@link gl:ortho/6}  with   near=-1 and   far=1. 
 %%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluOrtho2D.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluOrtho2D.xml">external</a> documentation.
 -spec ortho2D(Left, Right, Bottom, Top) -> 'ok' when Left :: float(),Right :: float(),Bottom :: float(),Top :: float().
 ortho2D(Left,Right,Bottom,Top) ->
   cast(5024, <<Left:?GLdouble,Right:?GLdouble,Bottom:?GLdouble,Top:?GLdouble>>).
@@ -503,23 +266,7 @@ ortho2D(Left,Right,Bottom,Top) ->
 %% the +`x' axis, 180 degrees along the -`y' axis, and  270 degrees along the -`x'
 %%  axis). 
 %%
-%%  The partial disk has a radius of   `Outer'  and contains a concentric circular hole
-%% with a radius  of  `Inner' . If  `Inner'  is 0, then no hole is generated. The partial
-%% disk is subdivided around the `z' axis into slices (like pizza slices) and also about
-%% the `z' axis into rings  (as specified by  `Slices'  and  `Loops' , respectively).
-%% 
-%%
-%%  With respect to orientation, the +`z'  side of the partial disk is considered to
-%%  be outside (see  {@link glu:quadricOrientation/2} ). This means that if the  orientation
-%% is set to `?GLU_OUTSIDE', then any normals generated  point along the +`z' axis.
-%% Otherwise, they point along the -`z'  axis. 
-%%
-%%  If texturing is turned on (with  {@link glu:quadricTexture/2} ), texture coordinates are
-%% generated linearly such that where   r=outer, the value at (`r', 0, 0) is  (1.0,
-%% 0.5), at (0, `r', 0) it is (0.5, 1.0), at (-`r', 0, 0)  it is (0.0, 0.5), and
-%%  at (0, -`r', 0) it is (0.5, 0.0). 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluPartialDisk.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluPartialDisk.xml">external</a> documentation.
 -spec partialDisk(Quad, Inner, Outer, Slices, Loops, Start, Sweep) -> 'ok' when Quad :: integer(),Inner :: float(),Outer :: float(),Slices :: integer(),Loops :: integer(),Start :: float(),Sweep :: float().
 partialDisk(Quad,Inner,Outer,Slices,Loops,Start,Sweep) ->
   cast(5025, <<Quad:?GLUquadric,Inner:?GLdouble,Outer:?GLdouble,Slices:?GLint,Loops:?GLint,Start:?GLdouble,Sweep:?GLdouble>>).
@@ -532,18 +279,7 @@ partialDisk(Quad,Inner,Outer,Slices,Loops,Start,Sweep) ->
 %% as wide in `x' as it is in `y'. If the viewport is twice as wide as it is tall,
 %% it displays the image without distortion. 
 %%
-%%  The matrix generated by ``glu:perspective'' is multipled by the current matrix, just
-%% as if  {@link gl:multMatrixd/1}  were called with the generated matrix. To load the perspective
-%% matrix onto the current matrix stack instead, precede the call to ``glu:perspective''
-%% with a call to  {@link gl:loadIdentity/0} . 
-%%
-%%  Given `f' defined as follows: 
-%%
-%%  f=cotangent(fovy/2) The generated matrix is 
-%%
-%% (f/aspect 0 0 0 0 f 0 0 0 0(zFar+zNear)/(zNear-zFar)(2×zFar×zNear)/(zNear-zFar) 0 0 -1 0)
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluPerspective.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluPerspective.xml">external</a> documentation.
 -spec perspective(Fovy, Aspect, ZNear, ZFar) -> 'ok' when Fovy :: float(),Aspect :: float(),ZNear :: float(),ZFar :: float().
 perspective(Fovy,Aspect,ZNear,ZFar) ->
   cast(5026, <<Fovy:?GLdouble,Aspect:?GLdouble,ZNear:?GLdouble,ZFar:?GLdouble>>).
@@ -557,19 +293,7 @@ perspective(Fovy,Aspect,ZNear,ZFar) ->
 %% rerender the scene. All primitives that would have been drawn near the cursor are identified
 %% and stored in the selection buffer. 
 %%
-%%  The matrix created by ``glu:pickMatrix'' is multiplied by the current matrix just as
-%% if  {@link gl:multMatrixd/1}  is called with the generated matrix. To effectively use the
-%% generated pick matrix for picking, first call  {@link gl:loadIdentity/0}  to load an identity
-%% matrix onto the perspective matrix stack. Then call ``glu:pickMatrix'', and, finally,
-%% call a command (such as  {@link glu:perspective/4} ) to multiply the perspective matrix by
-%% the pick matrix. 
-%%
-%%  When using ``glu:pickMatrix'' to pick NURBS, be careful to turn off the NURBS  property
-%% `?GLU_AUTO_LOAD_MATRIX'. If `?GLU_AUTO_LOAD_MATRIX' is not turned off, then
-%% any NURBS surface rendered is subdivided differently with the pick matrix than the way
-%% it was subdivided without the pick matrix. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluPickMatrix.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluPickMatrix.xml">external</a> documentation.
 -spec pickMatrix(X, Y, DelX, DelY, Viewport) -> 'ok' when X :: float(),Y :: float(),DelX :: float(),DelY :: float(),Viewport :: {integer(),integer(),integer(),integer()}.
 pickMatrix(X,Y,DelX,DelY,{V1,V2,V3,V4}) ->
   cast(5027, <<X:?GLdouble,Y:?GLdouble,DelX:?GLdouble,DelY:?GLdouble,V1:?GLint,V2:?GLint,V3:?GLint,V4:?GLint>>).
@@ -581,25 +305,7 @@ pickMatrix(X,Y,DelX,DelY,{V1,V2,V3,V4}) ->
 %% , and  `WinZ' . A return value of  `?GLU_TRUE' indicates success, a return value
 %% of `?GLU_FALSE' indicates failure. 
 %%
-%%  To compute the coordinates, let   v=(objX objY objZ 1.0) represented as a matrix with 4 rows and 1 column.
-%% Then ``glu:project'' computes   v" as follows:  
-%%
-%%  v"=P×M×v
-%%
-%%  where   P is the current projection matrix  `Proj'  and   M is the current modelview
-%% matrix  `Model'  (both represented as  4×4 matrices in column-major order). 
-%%
-%%  The window coordinates are then computed as follows:  
-%%
-%%  winX=view(0)+view(2)×(v"(0)+1)/2
-%%
-%%  winY=view(1)+view(3)×(v"(1)+1)/2
-%%
-%%  winZ=(v"(2)+1)/2
-%%
-%% 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluProject.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluProject.xml">external</a> documentation.
 -spec project(ObjX, ObjY, ObjZ, Model, Proj, View) -> {integer(),WinX :: float(),WinY :: float(),WinZ :: float()} when ObjX :: float(),ObjY :: float(),ObjZ :: float(),Model :: matrix(),Proj :: matrix(),View :: {integer(),integer(),integer(),integer()}.
 project(ObjX,ObjY,ObjZ,{M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16},{P1,P2,P3,P4,P5,P6,P7,P8,P9,P10,P11,P12,P13,P14,P15,P16},{V1,V2,V3,V4}) ->
   call(5028, <<ObjX:?GLdouble,ObjY:?GLdouble,ObjZ:?GLdouble,M1:?GLdouble,M2:?GLdouble,M3:?GLdouble,M4:?GLdouble,M5:?GLdouble,M6:?GLdouble,M7:?GLdouble,M8:?GLdouble,M9:?GLdouble,M10:?GLdouble,M11:?GLdouble,M12:?GLdouble,M13:?GLdouble,M14:?GLdouble,M15:?GLdouble,M16:?GLdouble,P1:?GLdouble,P2:?GLdouble,P3:?GLdouble,P4:?GLdouble,P5:?GLdouble,P6:?GLdouble,P7:?GLdouble,P8:?GLdouble,P9:?GLdouble,P10:?GLdouble,P11:?GLdouble,P12:?GLdouble,P13:?GLdouble,P14:?GLdouble,P15:?GLdouble,P16:?GLdouble,V1:?GLint,V2:?GLint,V3:?GLint,V4:?GLint>>);
@@ -611,18 +317,7 @@ project(ObjX,ObjY,ObjZ,{M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12},{P1,P2,P3,P4,P5,
 %% ``glu:quadricDrawStyle'' specifies the draw style for quadrics rendered with  `Quad' .
 %% The legal values are as follows: 
 %%
-%% `?GLU_FILL':  Quadrics are rendered with polygon primitives. The polygons  are drawn
-%% in a counterclockwise fashion with respect to their normals (as defined with  {@link glu:quadricOrientation/2} 
-%% ). 
-%%
-%% `?GLU_LINE':  Quadrics are rendered as a set of lines. 
-%%
-%% `?GLU_SILHOUETTE':  Quadrics are rendered as a set of lines, except that edges separating
-%% coplanar faces will not be drawn. 
-%%
-%% `?GLU_POINT':  Quadrics are rendered as a set of points. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluQuadricDrawStyle.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluQuadricDrawStyle.xml">external</a> documentation.
 -spec quadricDrawStyle(Quad, Draw) -> 'ok' when Quad :: integer(),Draw :: enum().
 quadricDrawStyle(Quad,Draw) ->
   cast(5029, <<Quad:?GLUquadric,Draw:?GLenum>>).
@@ -632,14 +327,7 @@ quadricDrawStyle(Quad,Draw) ->
 %% ``glu:quadricNormals'' specifies what kind of normals are desired for quadrics rendered
 %% with  `Quad' . The legal values are as follows: 
 %%
-%% `?GLU_NONE':  No normals are generated. 
-%%
-%% `?GLU_FLAT':  One normal is generated for every facet of a quadric. 
-%%
-%% `?GLU_SMOOTH':  One normal is generated for every vertex of a quadric. This is the
-%% initial value. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluQuadricNormals.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluQuadricNormals.xml">external</a> documentation.
 -spec quadricNormals(Quad, Normal) -> 'ok' when Quad :: integer(),Normal :: enum().
 quadricNormals(Quad,Normal) ->
   cast(5030, <<Quad:?GLUquadric,Normal:?GLenum>>).
@@ -649,15 +337,7 @@ quadricNormals(Quad,Normal) ->
 %% ``glu:quadricOrientation'' specifies what kind of orientation is desired for quadrics
 %% rendered  with  `Quad' . The  `Orientation'  values are as follows: 
 %%
-%% `?GLU_OUTSIDE':  Quadrics are drawn with normals pointing outward (the initial value).
-%% 
-%%
-%% `?GLU_INSIDE':  Quadrics are drawn with normals pointing inward. 
-%%
-%%  Note that the interpretation of `outward' and `inward' depends on the quadric
-%% being drawn. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluQuadricOrientation.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluQuadricOrientation.xml">external</a> documentation.
 -spec quadricOrientation(Quad, Orientation) -> 'ok' when Quad :: integer(),Orientation :: enum().
 quadricOrientation(Quad,Orientation) ->
   cast(5031, <<Quad:?GLUquadric,Orientation:?GLenum>>).
@@ -669,10 +349,7 @@ quadricOrientation(Quad,Orientation) ->
 %% coordinates  are generated, and if  `Texture'  is `?GLU_FALSE', they are not.
 %% The initial value is `?GLU_FALSE'. 
 %%
-%%  The manner in which texture coordinates are generated depends  upon the specific quadric
-%% rendered. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluQuadricTexture.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluQuadricTexture.xml">external</a> documentation.
 -spec quadricTexture(Quad, Texture) -> 'ok' when Quad :: integer(),Texture :: 0|1.
 quadricTexture(Quad,Texture) ->
   cast(5032, <<Quad:?GLUquadric,Texture:?GLboolean>>).
@@ -682,17 +359,7 @@ quadricTexture(Quad,Texture) ->
 %% ``glu:scaleImage'' scales a pixel image using the appropriate pixel store modes to 
 %% unpack data from the source image and pack data into the destination image. 
 %%
-%%  When shrinking an image, ``glu:scaleImage'' uses a box filter to sample the source
-%% image and create pixels for the destination image. When magnifying an image, the pixels
-%% from the source image are linearly interpolated to create the destination image. 
-%%
-%%  A return value of zero indicates success, otherwise a GLU error code is returned (see  {@link glu:errorString/1} 
-%% ). 
-%%
-%%  See the  {@link gl:readPixels/7}  reference page for a description of the acceptable values
-%% for the  `Format' ,  `TypeIn' , and  `TypeOut'  parameters. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluScaleImage.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluScaleImage.xml">external</a> documentation.
 -spec scaleImage(Format, WIn, HIn, TypeIn, DataIn, WOut, HOut, TypeOut, DataOut) -> integer() when Format :: enum(),WIn :: integer(),HIn :: integer(),TypeIn :: enum(),DataIn :: binary(),WOut :: integer(),HOut :: integer(),TypeOut :: enum(),DataOut :: mem().
 scaleImage(Format,WIn,HIn,TypeIn,DataIn,WOut,HOut,TypeOut,DataOut) ->
   send_bin(DataIn),
@@ -705,17 +372,7 @@ scaleImage(Format,WIn,HIn,TypeIn,DataIn,WOut,HOut,TypeOut,DataOut) ->
 %% is subdivided around the `z' axis into slices and along the  `z' axis  into
 %% stacks (similar to lines of longitude and latitude). 
 %%
-%%  If the orientation is set to `?GLU_OUTSIDE'  (with  {@link glu:quadricOrientation/2} ),
-%% then any normals generated  point away from the center of the sphere. Otherwise, they
-%% point toward the center of the sphere. 
-%%
-%%  If texturing is turned on (with  {@link glu:quadricTexture/2} ), then texture  coordinates
-%% are  generated so that `t' ranges from 0.0 at   z=-radius to 1.0 at   z=radius (`t'
-%%  increases linearly along longitudinal lines), and `s' ranges from 0.0 at the +`y'
-%%  axis, to 0.25 at the  +`x' axis,  to 0.5 at the -`y' axis, to 0.75 at the -`x'
-%%  axis, and back to 1.0  at the +`y' axis. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluSphere.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluSphere.xml">external</a> documentation.
 -spec sphere(Quad, Radius, Slices, Stacks) -> 'ok' when Quad :: integer(),Radius :: float(),Slices :: integer(),Stacks :: integer().
 sphere(Quad,Radius,Slices,Stacks) ->
   cast(5034, <<Quad:?GLUquadric,Radius:?GLdouble,Slices:?GLint,Stacks:?GLint>>).
@@ -727,13 +384,7 @@ sphere(Quad,Radius,Slices,Stacks) ->
 %% . A return value of  `?GLU_TRUE' indicates success; a return value of `?GLU_FALSE'
 %%  indicates failure. 
 %%
-%%  To compute the coordinates  (objX objY objZ), ``glu:unProject'' multiplies the normalized device coordinates
-%% by the inverse of  `Model'  *  `Proj'  as follows: 
-%%
-%% (objX objY objZ W)=INV(P  M) ((2(winX-view[0]))/(view[2])-1(2(winY-view[1]))/(view[3])-1 2(winZ)-1 1) INV denotes matrix inversion.  W is an unused variable, included for consistent
-%% matrix notation. 
-%%
-%% See <a href="http://www.opengl.org/sdk/docs/man/xhtml/gluUnProject.xml">external</a> documentation.
+%% See <a href="https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/gluUnProject.xml">external</a> documentation.
 -spec unProject(WinX, WinY, WinZ, Model, Proj, View) -> {integer(),ObjX :: float(),ObjY :: float(),ObjZ :: float()} when WinX :: float(),WinY :: float(),WinZ :: float(),Model :: matrix(),Proj :: matrix(),View :: {integer(),integer(),integer(),integer()}.
 unProject(WinX,WinY,WinZ,{M1,M2,M3,M4,M5,M6,M7,M8,M9,M10,M11,M12,M13,M14,M15,M16},{P1,P2,P3,P4,P5,P6,P7,P8,P9,P10,P11,P12,P13,P14,P15,P16},{V1,V2,V3,V4}) ->
   call(5035, <<WinX:?GLdouble,WinY:?GLdouble,WinZ:?GLdouble,M1:?GLdouble,M2:?GLdouble,M3:?GLdouble,M4:?GLdouble,M5:?GLdouble,M6:?GLdouble,M7:?GLdouble,M8:?GLdouble,M9:?GLdouble,M10:?GLdouble,M11:?GLdouble,M12:?GLdouble,M13:?GLdouble,M14:?GLdouble,M15:?GLdouble,M16:?GLdouble,P1:?GLdouble,P2:?GLdouble,P3:?GLdouble,P4:?GLdouble,P5:?GLdouble,P6:?GLdouble,P7:?GLdouble,P8:?GLdouble,P9:?GLdouble,P10:?GLdouble,P11:?GLdouble,P12:?GLdouble,P13:?GLdouble,P14:?GLdouble,P15:?GLdouble,P16:?GLdouble,V1:?GLint,V2:?GLint,V3:?GLint,V4:?GLint>>);
diff --git a/lib/wx/src/wx_object.erl b/lib/wx/src/wx_object.erl
index 42973335b4..cc19ff9770 100644
--- a/lib/wx/src/wx_object.erl
+++ b/lib/wx/src/wx_object.erl
@@ -561,21 +561,21 @@ system_code_change([Name, State, Mod, Time], _Module, OldVsn, Extra) ->
 print_event(Dev, {in, Msg}, Name) ->
     case Msg of
 	{'$gen_call', {From, _Tag}, Call} ->
-	    io:format(Dev, "*DBG* ~p got call ~p from ~w~n",
+	    io:format(Dev, "*DBG* ~tp got call ~tp from ~w~n",
 		      [Name, Call, From]);
 	{'$gen_cast', Cast} ->
-	    io:format(Dev, "*DBG* ~p got cast ~p~n",
+	    io:format(Dev, "*DBG* ~tp got cast ~tp~n",
 		      [Name, Cast]);
 	_ ->
-	    io:format(Dev, "*DBG* ~p got ~p~n", [Name, Msg])
+	    io:format(Dev, "*DBG* ~tp got ~tp~n", [Name, Msg])
     end;
 print_event(Dev, {out, Msg, To, State}, Name) ->
-    io:format(Dev, "*DBG* ~p sent ~p to ~w, new state ~w~n",
+    io:format(Dev, "*DBG* ~tp sent ~tp to ~w, new state ~tp~n",
 	      [Name, Msg, To, State]);
 print_event(Dev, {noreply, State}, Name) ->
-    io:format(Dev, "*DBG* ~p new state ~w~n", [Name, State]);
+    io:format(Dev, "*DBG* ~tp new state ~tp~n", [Name, State]);
 print_event(Dev, Event, Name) ->
-    io:format(Dev, "*DBG* ~p dbg  ~p~n", [Name, Event]).
+    io:format(Dev, "*DBG* ~tp dbg  ~tp~n", [Name, Event]).
 
 %%% ---------------------------------------------------
 %%% Terminate the server.
@@ -629,10 +629,10 @@ error_info(Reason, Name, Msg, State, Debug) ->
 	    _ ->
 		Reason
 	end,    
-    format("** wx object server ~p terminating \n"
-           "** Last message in was ~p~n"
-           "** When Server state == ~p~n"
-           "** Reason for termination == ~n** ~p~n",
+    format("** wx object server ~tp terminating \n"
+           "** Last message in was ~tp~n"
+           "** When Server state == ~tp~n"
+           "** Reason for termination == ~n** ~tp~n",
 	   [Name, Msg, State, Reason1]),
     sys:print_log(Debug),
     ok.
@@ -657,7 +657,7 @@ debug_options(Name, Opts) ->
 dbg_opts(Name, Opts) ->
     case catch sys:debug_options(Opts) of
 	{'EXIT',_} ->
-	    format("~p: ignoring erroneous debug options - ~p~n",
+	    format("~tp: ignoring erroneous debug options - ~tp~n",
 		   [Name, Opts]),
 	    [];
 	Dbg ->
diff --git a/lib/wx/test/wx_app_SUITE.erl b/lib/wx/test/wx_app_SUITE.erl
index 3fd5bf689d..a5202d8448 100644
--- a/lib/wx/test/wx_app_SUITE.erl
+++ b/lib/wx/test/wx_app_SUITE.erl
@@ -24,7 +24,12 @@
 %%----------------------------------------------------------------------
 -module(wx_app_SUITE).
 
--compile(export_all).
+-export([all/0, suite/0,groups/0,init_per_group/2,end_per_group/2,
+	 init_per_suite/1, end_per_suite/1,
+	 init_per_testcase/2, end_per_testcase/2]).
+
+-export([t/0, t/1, fields/1, modules/1, exportall/1, app_depend/1,
+         undef_funcs/0, undef_funcs/1, appup/1]).
 
 -include("wx_test_lib.hrl").
 -include_lib("common_test/include/ct.hrl").
diff --git a/lib/wx/test/wx_basic_SUITE.erl b/lib/wx/test/wx_basic_SUITE.erl
index d53bd3c15a..ad03a378de 100644
--- a/lib/wx/test/wx_basic_SUITE.erl
+++ b/lib/wx/test/wx_basic_SUITE.erl
@@ -28,7 +28,11 @@
 	 init_per_suite/1, end_per_suite/1, 
 	 init_per_testcase/2, end_per_testcase/2]).
 
--compile(export_all).
+-export([silent_start/1, create_window/1, several_apps/1, wx_api/1, wx_misc/1,
+         data_types/1, wx_object/1, undef_in_handle_info/1, undef_in_terminate/1,
+         undef_handle_event/1, undef_handle_call/1, undef_handle_cast/1, undef_handle_info/1,
+         undef_code_change/1, undef_terminate1/1, undef_terminate2/1
+        ]).
 
 -include("wx_test_lib.hrl").
 
diff --git a/lib/wx/test/wx_class_SUITE.erl b/lib/wx/test/wx_class_SUITE.erl
index 0a3c4659bf..6d314ab8fc 100644
--- a/lib/wx/test/wx_class_SUITE.erl
+++ b/lib/wx/test/wx_class_SUITE.erl
@@ -29,7 +29,10 @@
 	 init_per_suite/1, end_per_suite/1,
 	 init_per_testcase/2, end_per_testcase/2]).
 
--compile(export_all).
+-export([calendarCtrl/1, treeCtrl/1, notebook/1, staticBoxSizer/1,
+         clipboard/1, helpFrame/1, htmlWindow/1, listCtrlSort/1, listCtrlVirtual/1,
+         radioBox/1, systemSettings/1, taskBarIcon/1, toolbar/1, popup/1, modal/1,
+         textCtrl/1, locale/1]).
 
 -include("wx_test_lib.hrl").
 
@@ -51,7 +54,8 @@ suite() -> [{ct_hooks,[ts_install_cth]}, {timetrap,{minutes,2}}].
 all() ->
     [calendarCtrl, treeCtrl, notebook, staticBoxSizer,
      clipboard, helpFrame, htmlWindow, listCtrlSort, listCtrlVirtual,
-     radioBox, systemSettings, taskBarIcon, toolbar, popup, modal].
+     radioBox, systemSettings, taskBarIcon, toolbar, popup, modal,
+     textCtrl, locale].
 
 groups() ->
     [].
diff --git a/lib/wx/test/wx_event_SUITE.erl b/lib/wx/test/wx_event_SUITE.erl
index 6512cedaf2..a564f89e58 100644
--- a/lib/wx/test/wx_event_SUITE.erl
+++ b/lib/wx/test/wx_event_SUITE.erl
@@ -27,7 +27,10 @@
 	 init_per_suite/1, end_per_suite/1, 
 	 init_per_testcase/2, end_per_testcase/2]).
 
--compile(export_all).
+-export([connect/1, disconnect/1, disconnect_cb/1, connect_msg_20/1, connect_cb_20/1,
+         mouse_on_grid/1, spin_event/1, connect_in_callback/1, recursive/1,
+         dialog/1, char_events/1, callback_clean/1, handler_clean/1
+        ]).
 
 -include("wx_test_lib.hrl").
 
@@ -49,7 +52,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}, {timetrap,{minutes,2}}].
 all() ->
     [connect, disconnect, disconnect_cb, connect_msg_20, connect_cb_20,
      mouse_on_grid, spin_event, connect_in_callback, recursive,
-     dialog, char_events, callback_clean
+     dialog, char_events, callback_clean, handler_clean
     ].
 
 groups() -> 
@@ -577,6 +580,7 @@ handler_clean(_Config) ->
     Frame1 = wx_obj_test:start([{init, Init}]),
     ?mt(wxFrame, Frame1),
     wxWindow:show(Frame1),
+    timer:sleep(500),
     ?m([_|_], lists:sort(wx_test_lib:flush())),
     ?m(ok, wx_obj_test:stop(Frame1)),
     ?m([{terminate,normal}], lists:sort(wx_test_lib:flush())),
@@ -584,6 +588,7 @@ handler_clean(_Config) ->
     Terminate = fun({Frame,_}) -> wxWindow:destroy(Frame) end,
     Frame2 = wx_obj_test:start([{init, Init}, {terminate, Terminate}]),
     wxWindow:show(Frame2),
+    timer:sleep(500),
     ?m([_|_], lists:sort(wx_test_lib:flush())),
     ?m(ok, wx_obj_test:stop(Frame2)),
     ?m([{terminate,normal}], lists:sort(wx_test_lib:flush())),
diff --git a/lib/wx/test/wx_oc_object.erl b/lib/wx/test/wx_oc_object.erl
index 3924202410..bc9b7d48d0 100644
--- a/lib/wx/test/wx_oc_object.erl
+++ b/lib/wx/test/wx_oc_object.erl
@@ -20,9 +20,9 @@
 -module(wx_oc_object).
 -include_lib("wx/include/wx.hrl").
 
--behaviour(wx_object).
+%%-behaviour(wx_object).  %% commented out avoid warnings
 
-%% gen_server callbacks
+%% wx_object callbacks
 -export([init/1]).
 
 -record(state, {}).
diff --git a/lib/wx/test/wx_opengl_SUITE.erl b/lib/wx/test/wx_opengl_SUITE.erl
index 3de9209fae..19ea731dfb 100644
--- a/lib/wx/test/wx_opengl_SUITE.erl
+++ b/lib/wx/test/wx_opengl_SUITE.erl
@@ -27,7 +27,7 @@
 	 init_per_suite/1, end_per_suite/1, 
 	 init_per_testcase/2, end_per_testcase/2]).
 
--compile(export_all).
+-export([canvas/1, glu_tesselation/1]).
 
 -include("wx_test_lib.hrl").
 -include_lib("wx/include/gl.hrl").
diff --git a/lib/wx/test/wx_test_lib.erl b/lib/wx/test/wx_test_lib.erl
index 9f26b8cb9d..af508ff490 100644
--- a/lib/wx/test/wx_test_lib.erl
+++ b/lib/wx/test/wx_test_lib.erl
@@ -24,7 +24,10 @@
 %%% Created : 30 Oct 2008 by Dan Gudmundsson <[email protected]>
 %%%-------------------------------------------------------------------
 -module(wx_test_lib).
--compile(export_all).
+-export([init_per_suite/1, end_per_suite/1, init_per_testcase/2, end_per_testcase/2]).
+-export([tc_info/1, log/2, log/4, verbose/4, error/4,
+         flush/0, pick_msg/0, user_available/1, wx_destroy/2, wx_close/2, wait_for_close/0,
+         run_test/2, run_test/3, test_case_evaluator/3]).
 
 -include("wx_test_lib.hrl").
 
@@ -182,11 +185,15 @@ run_test([], _Config) -> [].
 run_test(Module, all, Config) ->
     All = [{Module, Test} || Test <- Module:all()],
     run_test(All, Config);
+run_test(Module, {group, Group}, Config) ->
+    {_, _, TCs} = lists:keyfind(Group, 1, Module:groups()),
+    All = [{Module, Test} || Test <- TCs],
+    run_test(All, Config);
+
 run_test(Module, TestCase, Config) ->
     log("Eval test case: ~w~n", [{Module, TestCase}]),
     Sec = timer:seconds(1) * 1000,
-    {T, Res} =
-	timer:tc(?MODULE, eval_test_case, [Module, TestCase, Config]),
+    {T, Res} = timer:tc(fun() -> eval_test_case(Module, TestCase, Config) end),
     log("Tested ~w in ~w sec~n", [TestCase, T div Sec]),
     {T div Sec, Res}.
     
diff --git a/lib/wx/test/wx_xtra_SUITE.erl b/lib/wx/test/wx_xtra_SUITE.erl
index c6268a7f46..486843ec63 100644
--- a/lib/wx/test/wx_xtra_SUITE.erl
+++ b/lib/wx/test/wx_xtra_SUITE.erl
@@ -28,7 +28,8 @@
 	 init_per_suite/1, end_per_suite/1, 
 	 init_per_testcase/2, end_per_testcase/2]).
 
--compile(export_all).
+-export([destroy_app/1, multiple_add_in_sizer/1, app_dies/1,
+         menu_item_debug/1]).
 
 -include("wx_test_lib.hrl").
 
diff --git a/lib/wx/test/wxt.erl b/lib/wx/test/wxt.erl
index 265cd5c981..2b380606d5 100644
--- a/lib/wx/test/wxt.erl
+++ b/lib/wx/test/wxt.erl
@@ -20,7 +20,7 @@
 %% Description : Shortcuts for running tests with wx internal test_server
 %%-------------------------------------------------------------------
 -module(wxt).
--compile(export_all).
+-export([t/0, t/1, t/2, user/0, user/1,user/2]).
 
 %%  Modules or suites can be shortcuts i.e. basic expands to wx_basic_SUITE.
 %%  
@@ -83,36 +83,6 @@ alias(Suite) when is_atom(Suite) ->
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
-config_fname() ->
-    "wx_test_case_config".
-
-%% Read default config file
-read_config() ->
-    Fname = config_fname(),
-    wx_test_lib:log("Consulting file ~s...~n", [Fname]),
-    case file:consult(Fname) of
-        {ok, Config} ->
-	    wx_test_lib:log("Read config ~w~n", [Config]),
-            Config;
-        _Error ->
-	    Config = wx_test_lib:default_config(),
-            wx_test_lib:log("<>WARNING<> Using default config: ~w~n", [Config]),
-            Config
-    end.
-
-%% Write new default config file
-write_config(Config) when is_list(Config) ->
-    Fname = config_fname(),
-    {ok, Fd} = file:open(Fname, write),
-    write_list(Fd, Config),
-    file:close(Fd).
-
-write_list(Fd, [H | T]) ->
-    ok = io:format(Fd, "~p.~n",[H]),
-    write_list(Fd, T);
-write_list(_, []) ->
-    ok.
-
 test_case_fname() ->
     "wx_test_case_info".
 
diff --git a/lib/wx/vsn.mk b/lib/wx/vsn.mk
index b9100e7c87..039fae322e 100644
--- a/lib/wx/vsn.mk
+++ b/lib/wx/vsn.mk
@@ -1 +1 @@
-WX_VSN = 1.8.1
+WX_VSN = 1.8.2
diff --git a/lib/xmerl/doc/src/Makefile b/lib/xmerl/doc/src/Makefile
index 2465217e8e..7d0b0b2392 100644
--- a/lib/xmerl/doc/src/Makefile
+++ b/lib/xmerl/doc/src/Makefile
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 #
-# Copyright Ericsson AB 2004-2016. All Rights Reserved.
+# Copyright Ericsson AB 2004-2017. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -59,9 +59,8 @@ XMERL_XML_FILES = $(XMERL_MODULES:=.xml)
 XML_REF3_FILES = $(XMERL_XML_FILES) \
 	xmerl_sax_parser.xml
 
-XML_PART_FILES =  \
-	part.xml \
-	part_notes.xml
+XML_PART_FILES = \
+	part.xml
 
 XML_REF6_FILES =
 
@@ -107,10 +106,10 @@ TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf
 
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -120,14 +119,14 @@ $(HTMLDIR)/%.gif: %.gif
 
 docs: pdf html man
 
-$(TOP_PDF_FILE): $(XML_FILES) 
+$(TOP_PDF_FILE): $(XML_FILES)
 
 pdf: $(TOP_PDF_FILE)
 
 html: gifs $(HTML_REF_MAN_FILE)
 
-$(XMERL_XML_FILES): 
-	escript $(DOCGEN)/priv/bin/xml_from_edoc.escript $(XMERL_DIR)/$(@:%.xml=%.erl) 
+$(XMERL_XML_FILES):
+	escript $(DOCGEN)/priv/bin/xml_from_edoc.escript $(XMERL_DIR)/$(@:%.xml=%.erl)
 
 man: $(MAN3_FILES) $(MAN6_FILES)
 
@@ -135,15 +134,15 @@ gifs: $(GIF_FILES:%=$(HTMLDIR)/%)
 
 xml: $(XMERL_XML_FILES)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)/*
-	rm -f $(MAN3DIR)/*	
-	rm -f $(MAN6DIR)/*	
+	rm -f $(MAN3DIR)/*
+	rm -f $(MAN6DIR)/*
 	rm -f $(XMERL_XML_FILES)
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 
 info:
@@ -158,7 +157,7 @@ info:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -177,6 +176,3 @@ release_spec:
 
 
 release_tests_spec:
-
-
-
diff --git a/lib/xmerl/doc/src/fascicules.xml b/lib/xmerl/doc/src/fascicules.xml
deleted file mode 100644
index 37feca543f..0000000000
--- a/lib/xmerl/doc/src/fascicules.xml
+++ /dev/null
@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE fascicules SYSTEM "fascicules.dtd">
-
-<fascicules>
-  <fascicule file="part" href="part_frame.html" entry="no">
-    User's Guide
-  </fascicule>
-  <fascicule file="ref_man" href="ref_man_frame.html" entry="yes">
-    Reference Manual
-  </fascicule>
-  <fascicule file="part_notes" href="part_notes_frame.html" entry="no">
-    Release Notes
-  </fascicule>
-  <fascicule file="" href="../../../../doc/print.html" entry="no">
-    Off-Print
-  </fascicule>
-</fascicules>
-
diff --git a/lib/xmerl/doc/src/part_notes.xml b/lib/xmerl/doc/src/part_notes.xml
deleted file mode 100644
index 4ed441c7d4..0000000000
--- a/lib/xmerl/doc/src/part_notes.xml
+++ /dev/null
@@ -1,40 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-<!DOCTYPE part SYSTEM "part.dtd">
-
-<part xmlns:xi="http://www.w3.org/2001/XInclude">
-  <header>
-    <copyright>
-      <year>2004</year><year>2016</year>
-      <holder>Ericsson AB. All Rights Reserved.</holder>
-    </copyright>
-    <legalnotice>
-      Licensed under the Apache License, Version 2.0 (the "License");
-      you may not use this file except in compliance with the License.
-      You may obtain a copy of the License at
- 
-          http://www.apache.org/licenses/LICENSE-2.0
-
-      Unless required by applicable law or agreed to in writing, software
-      distributed under the License is distributed on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-      See the License for the specific language governing permissions and
-      limitations under the License.
-    
-    </legalnotice>
-
-    <title>Xmerl Release Notes</title>
-    <prepared>Bertil Karlsson</prepared>
-    <docno></docno>
-    <date>>2004-12-15</date>
-    <rev></rev>
-    <file>part_notes.xml</file>
-  </header>
-  <description>
-    <p>The <em>Xmerl</em> application 
-      contains modules with support for processing of xml files compliant to XML 1.0.</p>
-    <p>There are also release notes for
-      <url href="notes_history.html">older versions</url>.</p>
-  </description>
-  <xi:include href="notes.xml"/>
-</part>
-
diff --git a/make/fakefop b/make/fakefop
index 7beeddf0a5..7a34c4faf1 100755
--- a/make/fakefop
+++ b/make/fakefop
@@ -22,13 +22,13 @@
 # Author: Tuncer Ayaz
 #
 
-if [ $# -lt 6 ]
+if [ $# -lt 8 ]
 then
-  echo "Usage: fakefop -c IGNORED -fo IGNORED -pdf OUTFILE"
+  echo "Usage: fakefop -c IGNORED -cache IGNORED -fo IGNORED -pdf OUTFILE"
   exit 1
 fi
 
-OUTFILE=$6
+OUTFILE=$8
 
 echo -n -e '%PDF-1.4\n%\0342\0343\0317\0323\n\n' > $OUTFILE
 
@@ -87,12 +87,12 @@ endobj
 
 xref
 0 6
-0000000000 65536 f 
-0000000016 00000 n 
-0000000070 00000 n 
-0000000136 00000 n 
-0000000291 00000 n 
-0000000410 00000 n 
+0000000000 65536 f
+0000000016 00000 n
+0000000070 00000 n
+0000000136 00000 n
+0000000291 00000 n
+0000000410 00000 n
 
 trailer
 <<
diff --git a/make/otp.mk.in b/make/otp.mk.in
index 4232d37c2e..1d538fa528 100644
--- a/make/otp.mk.in
+++ b/make/otp.mk.in
@@ -139,7 +139,7 @@ endif
 #
 .PRECIOUS: %.erl %.fo
 
-## Uncomment these lines and add .idl to suffixes above to have erlc 
+## Uncomment these lines and add .idl to suffixes above to have erlc
 ## eat IDL files
 ##$(EGEN)/%.erl: $(ESRC)/%.idl
 ##	$(ERLC) $(IDL_FLAGS) $<
@@ -239,7 +239,7 @@ ifeq ($(PDFCOLOR),)
 PDFCOLOR = \#960003
 endif
 
-# HTML & GIF files that always are generated and must be delivered 
+# HTML & GIF files that always are generated and must be delivered
 SGML_COLL_FILES = $(SGML_APPLICATION_FILES) $(SGML_PART_FILES)
 XML_COLL_FILES = $(XML_APPLICATION_FILES) $(XML_PART_FILES)
 DEFAULT_HTML_FILES = \
@@ -327,5 +327,4 @@ $(MAN9DIR)/%.9: %.xml
 	 escript $(DOCGEN)/priv/bin/codeline_preprocessing.escript $< $@
 
 .fo.pdf:
-	$(FOP) -c $(FOP_CONFIG) -fo $< -pdf $@
-
+	$(FOP) -c $(FOP_CONFIG) -cache $(ERL_TOP)/make/$(TARGET)/fop-fonts.cache -fo $< -pdf $@
diff --git a/otp_versions.table b/otp_versions.table
index 3c6474bf4d..ba3bccfe67 100644
--- a/otp_versions.table
+++ b/otp_versions.table
@@ -1,8 +1,14 @@
+OTP-20.1.3 : diameter-2.1.2 erts-9.1.3 snmp-5.2.8 # asn1-5.0.3 common_test-1.15.2 compiler-7.1.3 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.2 cosTime-1.2.2 cosTransactions-1.3.2 crypto-4.1 debugger-4.2.3 dialyzer-3.2.2 edoc-0.9.1 eldap-1.2.2 erl_docgen-0.7.1 erl_interface-3.10 et-1.6.1 eunit-2.3.4 hipe-3.16.1 ic-4.4.2 inets-6.4.2 jinterface-1.8 kernel-5.4 megaco-3.18.2 mnesia-4.15.1 observer-2.5 odbc-2.12 orber-3.8.3 os_mon-2.4.3 otp_mibs-1.1.1 parsetools-2.1.5 public_key-1.5 reltool-0.7.5 runtime_tools-1.12.2 sasl-3.1 ssh-4.6.1 ssl-8.2.1 stdlib-3.4.2 syntax_tools-2.1.3 tools-2.11 wx-1.8.2 xmerl-1.3.15 :
+OTP-20.1.2 : diameter-2.1.1 erts-9.1.2 # asn1-5.0.3 common_test-1.15.2 compiler-7.1.3 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.2 cosTime-1.2.2 cosTransactions-1.3.2 crypto-4.1 debugger-4.2.3 dialyzer-3.2.2 edoc-0.9.1 eldap-1.2.2 erl_docgen-0.7.1 erl_interface-3.10 et-1.6.1 eunit-2.3.4 hipe-3.16.1 ic-4.4.2 inets-6.4.2 jinterface-1.8 kernel-5.4 megaco-3.18.2 mnesia-4.15.1 observer-2.5 odbc-2.12 orber-3.8.3 os_mon-2.4.3 otp_mibs-1.1.1 parsetools-2.1.5 public_key-1.5 reltool-0.7.5 runtime_tools-1.12.2 sasl-3.1 snmp-5.2.7 ssh-4.6.1 ssl-8.2.1 stdlib-3.4.2 syntax_tools-2.1.3 tools-2.11 wx-1.8.2 xmerl-1.3.15 :
+OTP-20.1.1 : compiler-7.1.3 erts-9.1.1 ssh-4.6.1 # asn1-5.0.3 common_test-1.15.2 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.2 cosTime-1.2.2 cosTransactions-1.3.2 crypto-4.1 debugger-4.2.3 dialyzer-3.2.2 diameter-2.1 edoc-0.9.1 eldap-1.2.2 erl_docgen-0.7.1 erl_interface-3.10 et-1.6.1 eunit-2.3.4 hipe-3.16.1 ic-4.4.2 inets-6.4.2 jinterface-1.8 kernel-5.4 megaco-3.18.2 mnesia-4.15.1 observer-2.5 odbc-2.12 orber-3.8.3 os_mon-2.4.3 otp_mibs-1.1.1 parsetools-2.1.5 public_key-1.5 reltool-0.7.5 runtime_tools-1.12.2 sasl-3.1 snmp-5.2.7 ssl-8.2.1 stdlib-3.4.2 syntax_tools-2.1.3 tools-2.11 wx-1.8.2 xmerl-1.3.15 :
+OTP-20.1 : asn1-5.0.3 common_test-1.15.2 compiler-7.1.2 crypto-4.1 debugger-4.2.3 dialyzer-3.2.2 diameter-2.1 edoc-0.9.1 erl_docgen-0.7.1 erts-9.1 et-1.6.1 eunit-2.3.4 hipe-3.16.1 inets-6.4.2 kernel-5.4 mnesia-4.15.1 observer-2.5 os_mon-2.4.3 public_key-1.5 reltool-0.7.5 runtime_tools-1.12.2 sasl-3.1 snmp-5.2.7 ssh-4.6 ssl-8.2.1 stdlib-3.4.2 syntax_tools-2.1.3 tools-2.11 wx-1.8.2 # cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.2 cosTime-1.2.2 cosTransactions-1.3.2 eldap-1.2.2 erl_interface-3.10 ic-4.4.2 jinterface-1.8 megaco-3.18.2 odbc-2.12 orber-3.8.3 otp_mibs-1.1.1 parsetools-2.1.5 xmerl-1.3.15 :
+OTP-20.0.5 : erts-9.0.5 inets-6.4.1 # asn1-5.0.2 common_test-1.15.1 compiler-7.1.1 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.2 cosTime-1.2.2 cosTransactions-1.3.2 crypto-4.0 debugger-4.2.2 dialyzer-3.2.1 diameter-2.0 edoc-0.9 eldap-1.2.2 erl_docgen-0.7 erl_interface-3.10 et-1.6 eunit-2.3.3 hipe-3.16 ic-4.4.2 jinterface-1.8 kernel-5.3.1 megaco-3.18.2 mnesia-4.15 observer-2.4 odbc-2.12 orber-3.8.3 os_mon-2.4.2 otp_mibs-1.1.1 parsetools-2.1.5 public_key-1.4.1 reltool-0.7.4 runtime_tools-1.12.1 sasl-3.0.4 snmp-5.2.6 ssh-4.5.1 ssl-8.2 stdlib-3.4.1 syntax_tools-2.1.2 tools-2.10.1 wx-1.8.1 xmerl-1.3.15 :
 OTP-20.0.4 : dialyzer-3.2.1 erts-9.0.4 # asn1-5.0.2 common_test-1.15.1 compiler-7.1.1 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.2 cosTime-1.2.2 cosTransactions-1.3.2 crypto-4.0 debugger-4.2.2 diameter-2.0 edoc-0.9 eldap-1.2.2 erl_docgen-0.7 erl_interface-3.10 et-1.6 eunit-2.3.3 hipe-3.16 ic-4.4.2 inets-6.4 jinterface-1.8 kernel-5.3.1 megaco-3.18.2 mnesia-4.15 observer-2.4 odbc-2.12 orber-3.8.3 os_mon-2.4.2 otp_mibs-1.1.1 parsetools-2.1.5 public_key-1.4.1 reltool-0.7.4 runtime_tools-1.12.1 sasl-3.0.4 snmp-5.2.6 ssh-4.5.1 ssl-8.2 stdlib-3.4.1 syntax_tools-2.1.2 tools-2.10.1 wx-1.8.1 xmerl-1.3.15 :
 OTP-20.0.3 : asn1-5.0.2 compiler-7.1.1 erts-9.0.3 ssh-4.5.1 # common_test-1.15.1 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.2 cosTime-1.2.2 cosTransactions-1.3.2 crypto-4.0 debugger-4.2.2 dialyzer-3.2 diameter-2.0 edoc-0.9 eldap-1.2.2 erl_docgen-0.7 erl_interface-3.10 et-1.6 eunit-2.3.3 hipe-3.16 ic-4.4.2 inets-6.4 jinterface-1.8 kernel-5.3.1 megaco-3.18.2 mnesia-4.15 observer-2.4 odbc-2.12 orber-3.8.3 os_mon-2.4.2 otp_mibs-1.1.1 parsetools-2.1.5 public_key-1.4.1 reltool-0.7.4 runtime_tools-1.12.1 sasl-3.0.4 snmp-5.2.6 ssl-8.2 stdlib-3.4.1 syntax_tools-2.1.2 tools-2.10.1 wx-1.8.1 xmerl-1.3.15 :
 OTP-20.0.2 : asn1-5.0.1 erts-9.0.2 kernel-5.3.1 # common_test-1.15.1 compiler-7.1 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.2 cosTime-1.2.2 cosTransactions-1.3.2 crypto-4.0 debugger-4.2.2 dialyzer-3.2 diameter-2.0 edoc-0.9 eldap-1.2.2 erl_docgen-0.7 erl_interface-3.10 et-1.6 eunit-2.3.3 hipe-3.16 ic-4.4.2 inets-6.4 jinterface-1.8 megaco-3.18.2 mnesia-4.15 observer-2.4 odbc-2.12 orber-3.8.3 os_mon-2.4.2 otp_mibs-1.1.1 parsetools-2.1.5 public_key-1.4.1 reltool-0.7.4 runtime_tools-1.12.1 sasl-3.0.4 snmp-5.2.6 ssh-4.5 ssl-8.2 stdlib-3.4.1 syntax_tools-2.1.2 tools-2.10.1 wx-1.8.1 xmerl-1.3.15 :
 OTP-20.0.1 : common_test-1.15.1 erts-9.0.1 runtime_tools-1.12.1 stdlib-3.4.1 tools-2.10.1 # asn1-5.0 compiler-7.1 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.2 cosTime-1.2.2 cosTransactions-1.3.2 crypto-4.0 debugger-4.2.2 dialyzer-3.2 diameter-2.0 edoc-0.9 eldap-1.2.2 erl_docgen-0.7 erl_interface-3.10 et-1.6 eunit-2.3.3 hipe-3.16 ic-4.4.2 inets-6.4 jinterface-1.8 kernel-5.3 megaco-3.18.2 mnesia-4.15 observer-2.4 odbc-2.12 orber-3.8.3 os_mon-2.4.2 otp_mibs-1.1.1 parsetools-2.1.5 public_key-1.4.1 reltool-0.7.4 sasl-3.0.4 snmp-5.2.6 ssh-4.5 ssl-8.2 syntax_tools-2.1.2 wx-1.8.1 xmerl-1.3.15 :
 OTP-20.0 : asn1-5.0 common_test-1.15 compiler-7.1 cosProperty-1.2.2 crypto-4.0 debugger-4.2.2 dialyzer-3.2 diameter-2.0 edoc-0.9 erl_docgen-0.7 erl_interface-3.10 erts-9.0 eunit-2.3.3 hipe-3.16 inets-6.4 jinterface-1.8 kernel-5.3 megaco-3.18.2 mnesia-4.15 observer-2.4 orber-3.8.3 parsetools-2.1.5 public_key-1.4.1 reltool-0.7.4 runtime_tools-1.12 sasl-3.0.4 snmp-5.2.6 ssh-4.5 ssl-8.2 stdlib-3.4 syntax_tools-2.1.2 tools-2.10 wx-1.8.1 xmerl-1.3.15 # cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosTime-1.2.2 cosTransactions-1.3.2 eldap-1.2.2 et-1.6 ic-4.4.2 odbc-2.12 os_mon-2.4.2 otp_mibs-1.1.1 :
+OTP-19.3.6.3 : compiler-7.0.4.1 erts-8.3.5.3 # asn1-4.0.4 common_test-1.14 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.1 cosTime-1.2.2 cosTransactions-1.3.2 crypto-3.7.4 debugger-4.2.1 dialyzer-3.1.1 diameter-1.12.2 edoc-0.8.1 eldap-1.2.2 erl_docgen-0.6.1 erl_interface-3.9.3 et-1.6 eunit-2.3.2 gs-1.6.2 hipe-3.15.4 ic-4.4.2 inets-6.3.9 jinterface-1.7.1 kernel-5.2 megaco-3.18.1 mnesia-4.14.3 observer-2.3.1 odbc-2.12 orber-3.8.2 os_mon-2.4.2 otp_mibs-1.1.1 parsetools-2.1.4 percept-0.9 public_key-1.4 reltool-0.7.3 runtime_tools-1.11.1 sasl-3.0.3 snmp-5.2.5 ssh-4.4.2 ssl-8.1.3 stdlib-3.3 syntax_tools-2.1.1 tools-2.9.1 typer-0.9.12 wx-1.8 xmerl-1.3.14 :
 OTP-19.3.6.2 : erts-8.3.5.2 # asn1-4.0.4 common_test-1.14 compiler-7.0.4 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.1 cosTime-1.2.2 cosTransactions-1.3.2 crypto-3.7.4 debugger-4.2.1 dialyzer-3.1.1 diameter-1.12.2 edoc-0.8.1 eldap-1.2.2 erl_docgen-0.6.1 erl_interface-3.9.3 et-1.6 eunit-2.3.2 gs-1.6.2 hipe-3.15.4 ic-4.4.2 inets-6.3.9 jinterface-1.7.1 kernel-5.2 megaco-3.18.1 mnesia-4.14.3 observer-2.3.1 odbc-2.12 orber-3.8.2 os_mon-2.4.2 otp_mibs-1.1.1 parsetools-2.1.4 percept-0.9 public_key-1.4 reltool-0.7.3 runtime_tools-1.11.1 sasl-3.0.3 snmp-5.2.5 ssh-4.4.2 ssl-8.1.3 stdlib-3.3 syntax_tools-2.1.1 tools-2.9.1 typer-0.9.12 wx-1.8 xmerl-1.3.14 :
 OTP-19.3.6.1 : erts-8.3.5.1 # asn1-4.0.4 common_test-1.14 compiler-7.0.4 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.1 cosTime-1.2.2 cosTransactions-1.3.2 crypto-3.7.4 debugger-4.2.1 dialyzer-3.1.1 diameter-1.12.2 edoc-0.8.1 eldap-1.2.2 erl_docgen-0.6.1 erl_interface-3.9.3 et-1.6 eunit-2.3.2 gs-1.6.2 hipe-3.15.4 ic-4.4.2 inets-6.3.9 jinterface-1.7.1 kernel-5.2 megaco-3.18.1 mnesia-4.14.3 observer-2.3.1 odbc-2.12 orber-3.8.2 os_mon-2.4.2 otp_mibs-1.1.1 parsetools-2.1.4 percept-0.9 public_key-1.4 reltool-0.7.3 runtime_tools-1.11.1 sasl-3.0.3 snmp-5.2.5 ssh-4.4.2 ssl-8.1.3 stdlib-3.3 syntax_tools-2.1.1 tools-2.9.1 typer-0.9.12 wx-1.8 xmerl-1.3.14 :
 OTP-19.3.6 : erts-8.3.5 # asn1-4.0.4 common_test-1.14 compiler-7.0.4 cosEvent-2.2.1 cosEventDomain-1.2.1 cosFileTransfer-1.2.1 cosNotification-1.2.2 cosProperty-1.2.1 cosTime-1.2.2 cosTransactions-1.3.2 crypto-3.7.4 debugger-4.2.1 dialyzer-3.1.1 diameter-1.12.2 edoc-0.8.1 eldap-1.2.2 erl_docgen-0.6.1 erl_interface-3.9.3 et-1.6 eunit-2.3.2 gs-1.6.2 hipe-3.15.4 ic-4.4.2 inets-6.3.9 jinterface-1.7.1 kernel-5.2 megaco-3.18.1 mnesia-4.14.3 observer-2.3.1 odbc-2.12 orber-3.8.2 os_mon-2.4.2 otp_mibs-1.1.1 parsetools-2.1.4 percept-0.9 public_key-1.4 reltool-0.7.3 runtime_tools-1.11.1 sasl-3.0.3 snmp-5.2.5 ssh-4.4.2 ssl-8.1.3 stdlib-3.3 syntax_tools-2.1.1 tools-2.9.1 typer-0.9.12 wx-1.8 xmerl-1.3.14 :
diff --git a/scripts/pre-push b/scripts/pre-push
new file mode 100755
index 0000000000..0349378056
--- /dev/null
+++ b/scripts/pre-push
@@ -0,0 +1,202 @@
+#!/bin/sh
+
+# This is a git pre-push hook script.
+# It limits what you can push toward https://github.com/erlang/otp.git
+#
+# To activate, make a copy as .git/hooks/pre-push in your repo.
+
+# Called by "git push"
+# after it has checked the remote status, but before anything has been
+# pushed.  If this script exits with a non-zero status nothing will be pushed.
+#
+# This hook is called with the following parameters:
+#
+# $1 -- Name of the remote to which the push is being done
+# $2 -- URL to which the push is being done
+#
+# If pushing without using a named remote those arguments will be equal.
+#
+# Information about the commits which are being pushed is supplied as lines to
+# the standard input in the form:
+#
+#   <local ref> <local sha1> <remote ref> <remote sha1>
+#
+
+RELEASES="20 19 18 17 r16 r15 r14 r13"
+
+# First commit on master, not allowed in other branches
+MASTER_ONLY=f52748254f17ba42e344798e8c787a1e3361fa33
+
+# Number of commits and files allowed in one push by this script
+NCOMMITS_MAX=100
+NFILES_MAX=100
+
+remote="$1"
+url="$2"
+
+null=0000000000000000000000000000000000000000
+
+#echo "pre-push hook: remote=$remote"
+#echo "pre-push hook: url=$url"
+
+if [ "$url" = 'https://github.com/erlang/otp.git' -o "$url" = '[email protected]:erlang/otp.git' ]
+then
+    if [ $remote = "$url" ]; then
+        echo "$0 says:"
+        echo "***"
+        echo "*** Push to $url without using a named remote is NOT ALLOWED!!!!"
+        echo "***"
+        exit 1
+    fi
+    IFS=' '
+    while read local_ref local_sha remote_ref remote_sha
+    do
+	#echo "pre-push hook:  local_ref=$local_ref"
+	#echo "pre-push hook: remote_ref=$remote_ref"
+	#echo "pre-push hook:  local_sha=$local_sha"
+	#echo "pre-push hook: remote_sha=$remote_sha"
+
+	if [ "$local_sha" = $null ]
+	then
+            echo "$0 says:"
+            echo "***"
+            echo "*** DELETE push to '$remote' NOT ALLOWED!!!!!"
+            echo "***"
+            exit 1
+	fi
+	if [ "$local_ref" != "$remote_ref" ]
+	then
+	    echo "$0 says:"
+	    echo "***"
+	    echo "*** RENAME push: $local_ref pushed as $remote_ref to '$remote' NOT ALLOWED!!!!"
+	    echo "***"
+	    exit 1
+	fi
+	case "$remote_ref" in
+            refs/heads/master | refs/heads/maint | refs/heads/maint-[0-9][0-9] | refs/heads/maint-r[0-9][0-9])
+		branch=${remote_ref#refs/heads/}
+                if [ "$remote_sha" = $null ]
+                then
+                    echo "$0 says:"
+		    echo "***"
+		    echo "*** UNKNOWN BRANCH: '$branch' does not exist at '$remote'!!!!"
+		    echo "***"
+		    exit 1
+                fi
+		if ! git log -1 --oneline $remote_sha > /dev/null 2>&1
+		then
+		    echo "$0 says:"
+		    echo "***"
+		    echo "*** The top of '$branch' at '$remote' ($remote_sha)"
+		    echo "*** does not exist locally!!!"
+		    echo "*** You probably need to refresh local '$branch' and redo merge."
+		    echo "***"
+		    exit 1
+		fi
+		if ! git merge-base --is-ancestor $remote_sha $local_sha
+		then
+		    echo "$0 says:"
+		    echo "***"
+		    echo "*** FORCE push branch to '$remote' NOT ALLOWED!!!"
+		    echo "***"
+		    exit 1
+		fi
+                if [ $remote_ref != refs/heads/master -a "$MASTER_ONLY" ] && git merge-base --is-ancestor $MASTER_ONLY $local_sha
+                then
+		    echo "$0 says:"
+		    echo "***"
+		    echo "*** INVALID MERGE: Commit $MASTER_ONLY should not be reachable from '$branch'!!!!"
+                    echo "***                You have probably merged master into '$branch' by mistake"
+		    echo "***"
+		    exit 1
+                fi
+                if [ ${remote_ref#refs/heads/maint-} != $remote_ref ] && git merge-base --is-ancestor refs/remotes/$remote/maint $local_sha
+                then
+		    echo "$0 says:"
+		    echo "***"
+		    echo "*** INVALID MERGE: Branch maint should not be reachable from '$branch'!!!!"
+                    echo "***                You have probably merged maint into '$branch' by mistake."
+		    echo "***"
+		    exit 1
+                fi
+                if [ $remote_ref = refs/heads/maint -o $remote_ref = refs/heads/master ]; then
+                    for x in $RELEASES; do
+                        if ! git merge-base --is-ancestor refs/remotes/$remote/maint-$x $local_sha; then
+                            echo "$0 says:"
+		            echo "***"
+		            echo "*** WARNING: Branch '$remote/maint-$x' is not reachable from '$branch'!!!!"
+                            echo "***          Someone needs to merge 'maint-$x' forward and push."
+		            echo "***"
+                        fi
+                    done
+                fi
+                if [ $remote_ref = refs/heads/master ] && ! git merge-base --is-ancestor refs/remotes/$remote/maint $local_sha
+                then
+                    echo "$0 says:"
+		    echo "***"
+		    echo "*** INVALID PUSH: Branch '$remote/maint' is not reachable from master!!!!"
+                    echo "***               Someone needs to merge maint forward to master and push."
+		    echo "***"
+		    exit 1
+                fi
+		NCOMMITS=`git rev-list --count $remote_sha..$local_sha`
+		if [ $NCOMMITS -gt $NCOMMITS_MAX ]
+		then
+		    echo "$0 says:"
+		    echo "***"
+		    echo "*** HUGE push: $NCOMMITS commits (> $NCOMMITS_MAX) to '$branch' at '$remote' NOT ALLOWED!!!!"
+		    echo "***"
+		    exit 1
+		fi
+		NFILES=`git diff --name-only $remote_sha $local_sha | wc --lines`
+		if [ $NFILES -gt $NFILES_MAX ]
+		then
+		    echo "$0 says:"
+		    echo "***"
+		    echo "*** HUGE push: $NFILES changed files (> $NFILES_MAX) to '$branch' at '$remote' NOT ALLOWED!!!!"
+		    echo "***"
+		    exit 1
+		fi
+		;;
+	    refs/tags/OTP-20.* | refs/tags/OTP-19.* | refs/tags/OTP-18.* | refs/tags/OTP-17.*)
+		tag=${remote_ref#refs/tags/}
+		if [ "$remote_sha" != $null ]
+		then
+		    echo "$0 says:"
+		    echo "***"
+		    echo "*** FORCE push tag to '$remote' NOT ALLOWED!!!"
+		    echo "*** Tag '$tag' already exists at '$remote'."
+		    echo "***"
+		    exit 1
+		fi
+		;;
+            refs/heads/*)
+		branch=${remote_ref#refs/heads/}
+		echo "$0 says:"
+		echo "***"
+		echo "*** UNKNOWN branch name: '$branch' pushed to '$remote' NOT ALLOWED!!!!"
+		echo "***"
+		exit 1
+		;;
+	    refs/tags/*)
+		tag=${remote_ref#refs/tags/}
+		echo "$0 says:"
+		echo "***"
+		echo "*** UNKNOWN tag name: '$tag' pushed to '$remote' NOT ALLOWED!!!!"
+		echo "***"
+		exit 1
+		;;
+	    *)
+		echo "$0 says:"
+		echo "***"
+		echo "*** STRANGE ref: '$remote_ref' pushed to '$remote' NOT ALLOWED!!!!"
+		echo "***"
+		exit 1
+		;;
+	esac
+    done
+else
+    echo "$0: No checks done for remote '$remote' at $url."
+fi
+
+exit 0
diff --git a/scripts/run-dialyzer b/scripts/run-dialyzer
index 383ae2301d..05c1fd63c0 100755
--- a/scripts/run-dialyzer
+++ b/scripts/run-dialyzer
@@ -4,4 +4,13 @@ set -e
 
 $ERL_TOP/bin/dialyzer --build_plt --apps asn1 compiler crypto dialyzer edoc erts et hipe inets kernel mnesia observer public_key runtime_tools snmp ssh ssl stdlib syntax_tools wx xmerl --statistics
 $ERL_TOP/bin/dialyzer -n -Wunknown -Wunmatched_returns --apps compiler erts kernel stdlib asn1 crypto dialyzer hipe parsetools public_key runtime_tools sasl tools --statistics
-$ERL_TOP/bin/dialyzer -n --apps common_test debugger edoc inets mnesia observer ssh ssl syntax_tools tools wx xmerl --statistics
+$ERL_TOP/bin/dialyzer -n --apps common_test debugger edoc inets mnesia observer ssh ssl syntax_tools wx xmerl --statistics
+
+# In travis we don't dialyze everything as it takes too much time
+if [ "X$DIALYZE_ALL_APPLICATIONS" = "Xtrue" ]; then
+    $ERL_TOP/bin/dialyzer -n -Wunknown -Wunmatched_returns --apps eldap erl_docgen et odbc --statistics
+    $ERL_TOP/bin/dialyzer -n --apps eunit reltool os_mon --statistics
+
+    # These application are not run always as the currently have dialyzer warnings
+    # $ERL_TOP/bin/dialyzer -n --apps cosEvent cosEventDomain cosFileTransfer cosNotification cosProperty cosTime cosTransactions diameter megaco orber snmp --statistics
+fi
diff --git a/system/doc/Makefile b/system/doc/Makefile
index eb900b933f..0c4adf6554 100644
--- a/system/doc/Makefile
+++ b/system/doc/Makefile
@@ -9,11 +9,11 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # The Initial Developer of the Original Code is Ericsson Utvecklings AB.
 # Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
 # AB. All Rights Reserved.''
-# 
+#
 #     $Id$
 #
 include $(ERL_TOP)/make/target.mk
@@ -38,10 +38,9 @@ SUB_DIRECTORIES = design_principles \
 
 #		  pics \
 
-SPECIAL_TARGETS = 
+SPECIAL_TARGETS =
 
 #
 # Default Subdir Targets
 #
 include $(ERL_TOP)/make/otp_subdir.mk
-
diff --git a/system/doc/design_principles/Makefile b/system/doc/design_principles/Makefile
index 937b3e28c8..5743a50b47 100644
--- a/system/doc/design_principles/Makefile
+++ b/system/doc/design_principles/Makefile
@@ -1,8 +1,8 @@
 #
 # %CopyrightBegin%
-# 
+#
 # Copyright Ericsson AB 1997-2016. All Rights Reserved.
-# 
+#
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -14,7 +14,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-# 
+#
 # %CopyrightEnd%
 #
 #
@@ -37,7 +37,7 @@ RELSYSDIR = "$(RELEASE_PATH)/doc/design_principles"
 # ----------------------------------------------------
 XML_PART_FILES = part.xml
 
-include xmlfiles.mk 
+include xmlfiles.mk
 
 XML_CHAPTER_FILES=$(DESIGN_PRINCIPLES_CHAPTER_FILES)
 
@@ -46,7 +46,6 @@ TOPDOCDIR=..
 BOOK_FILES = book.xml
 
 GIF_FILES = \
-	note.gif \
 	clientserver.gif \
 	dist1.gif \
 	dist2.gif \
@@ -66,7 +65,7 @@ IMAGE_FILES = $(GIF_FILES) $(PNG_FILES)
 
 XML_FILES = \
 	$(BOOK_FILES) $(XML_CHAPTER_FILES) \
-	$(XML_PART_FILES) 
+	$(XML_PART_FILES)
 
 # ----------------------------------------------------
 
@@ -78,10 +77,10 @@ HTMLDIR = ../html/design_principles
 HTML_UG_FILE = $(HTMLDIR)/users_guide.html
 
 # ----------------------------------------------------
-# FLAGS 
+# FLAGS
 # ----------------------------------------------------
-XML_FLAGS += 
-DVIPS_FLAGS += 
+XML_FLAGS +=
+DVIPS_FLAGS +=
 
 # ----------------------------------------------------
 # Targets
@@ -102,16 +101,16 @@ html: $(HTML_UG_FILE) images
 
 images: $(IMAGE_FILES:%=$(HTMLDIR)/%)
 
-debug opt: 
+debug opt:
 
 clean clean_docs:
 	rm -rf $(HTMLDIR)
 	rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo)
-	rm -f errs core *~ 
+	rm -f errs core *~
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_docs_spec: docs
@@ -123,5 +122,3 @@ release_docs_spec: docs
 
 
 release_spec:
-
-
diff --git a/system/doc/design_principles/des_princ.xml b/system/doc/design_principles/des_princ.xml
index af5904ce78..e21f2a7f4e 100644
--- a/system/doc/design_principles/des_princ.xml
+++ b/system/doc/design_principles/des_princ.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>1997</year><year>2016</year>
+      <year>1997</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
diff --git a/system/doc/design_principles/gen_server_concepts.xml b/system/doc/design_principles/gen_server_concepts.xml
index c1b98189d5..3a1f876646 100644
--- a/system/doc/design_principles/gen_server_concepts.xml
+++ b/system/doc/design_principles/gen_server_concepts.xml
@@ -32,7 +32,7 @@
   <marker id="gen_server"></marker>
   <p>This section is to be read with the
     <seealso marker="stdlib:gen_server">gen_server(3)</seealso>
-    manual page in <c>stdblib</c>, where all interface functions and
+    manual page in <c>stdlib</c>, where all interface functions and
     callback functions are described in detail.</p>
 
   <section>
diff --git a/system/doc/design_principles/note.gif b/system/doc/design_principles/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/system/doc/design_principles/note.gif
+++ /dev/null
diff --git a/system/doc/design_principles/warning.gif b/system/doc/design_principles/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/system/doc/design_principles/warning.gif
+++ /dev/null
diff --git a/system/doc/efficiency_guide/advanced.xml b/system/doc/efficiency_guide/advanced.xml
index e1760d0ded..896eda5f1c 100644
--- a/system/doc/efficiency_guide/advanced.xml
+++ b/system/doc/efficiency_guide/advanced.xml
@@ -255,30 +255,36 @@
         <cell><marker id="unique_references"/>Unique References on a Runtime System Instance</cell>
         <cell>Each scheduler thread has its own set of references, and all
         other threads have a shared set of references. Each set of references
-        consist of <c>2⁶⁴ - 1</c> unique references. That is the total
+        consist of <c>2⁶⁴ - 1</c> unique references. That is, the total
         amount of unique references that can be produced on a runtime
-        system instance is <c>(NoSchedulers + 1) * (2⁶⁴ - 1)</c>. If a
-        scheduler thread create a new reference each nano second,
+        system instance is <c>(NoSchedulers + 1) × (2⁶⁴ - 1)</c>.
+	<br/><br/>
+	If a scheduler thread create a new reference each nano second,
         references will at earliest be reused after more than 584 years.
 	That is, for the foreseeable future they are unique enough.</cell>
       </row>
       <row>
         <cell><marker id="unique_integers"/>Unique Integers on a Runtime System Instance</cell>
-        <cell>There are two types of unique integers both created using the
-        <seealso marker="erts:erlang#unique_integer/1">erlang:unique_integer()</seealso>
-        BIF. Unique integers created:
-         <taglist>
-	  <tag>with the <c>monotonic</c> modifier</tag>
-	  <item>consist of a set of <c>2⁶⁴ - 1</c> unique integers.</item>
-	  <tag>without the <c>monotonic</c> modifier</tag>
-	  <item>consist of a set of <c>2⁶⁴ - 1</c> unique integers per scheduler
-	  thread and a set of <c>2⁶⁴ - 1</c> unique integers shared by
-	  other threads. That is the total amount of unique integers without
-	  the <c>monotonic</c> modifier is <c>(NoSchedulers + 1) * (2⁶⁴ - 1)</c></item>
-        </taglist>
-      If a unique integer is created each nano second, unique integers
-      will at earliest be reused after more than 584 years. That is, for
-	the foreseeable future they are unique enough.</cell>
+        <cell>
+	    There are two types of unique integers both created using the
+            <seealso marker="erts:erlang#unique_integer/1">erlang:unique_integer()</seealso>
+            BIF:
+	    <br/><br/>
+	    <em>1.</em> Unique integers created <em>with</em> the
+	    <c>monotonic</c> modifier consist of a set of <c>2⁶⁴ - 1</c>
+	    unique integers.
+	    <br/><br/>
+	    <em>2.</em> Unique integers created <em>without</em> the
+	    <c>monotonic</c> modifier consist of a set of <c>2⁶⁴ - 1</c>
+	    unique integers per scheduler thread and a set of <c>2⁶⁴ - 1</c>
+	    unique integers shared by other threads. That is, the total
+	    amount of unique integers without the <c>monotonic</c> modifier
+	    is <c>(NoSchedulers + 1) × (2⁶⁴ - 1)</c>.
+	    <br/><br/>
+	    If a unique integer is created each nano second, unique integers
+	    will at earliest be reused after more than 584 years. That is, for
+	    the foreseeable future they are unique enough.
+	</cell>
       </row>	
       <tcaption>System Limits</tcaption>
     </table>
diff --git a/system/doc/embedded/note.gif b/system/doc/embedded/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/system/doc/embedded/note.gif
+++ /dev/null
diff --git a/system/doc/embedded/warning.gif b/system/doc/embedded/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/system/doc/embedded/warning.gif
+++ /dev/null
diff --git a/system/doc/installation_guide/note.gif b/system/doc/installation_guide/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/system/doc/installation_guide/note.gif
+++ /dev/null
diff --git a/system/doc/installation_guide/warning.gif b/system/doc/installation_guide/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/system/doc/installation_guide/warning.gif
+++ /dev/null
diff --git a/system/doc/oam/note.gif b/system/doc/oam/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/system/doc/oam/note.gif
+++ /dev/null
diff --git a/system/doc/oam/oam_intro.xml b/system/doc/oam/oam_intro.xml
index 8b8d69e638..ead8c026b9 100644
--- a/system/doc/oam/oam_intro.xml
+++ b/system/doc/oam/oam_intro.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>1997</year><year>2016</year>
+      <year>1997</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -211,7 +211,7 @@ snmp:c("MY-MIB", [{il, ["sasl/priv/mibs"]}]).</code>
 
       <p>The following MIBs are defined in the OTP system:</p>
       <list type="bulleted">
-	<item><p><c>OTP-REG)</c> (in SASL) contains the top-level
+	<item><p><c>OTP-REG</c> (in SASL) contains the top-level
 	OTP registration objects, used by all other MIBs.</p></item>
 	<item><p><c>OTP-TC</c> (in SASL) contains the general
 	Textual Conventions, which can be used by any other MIB.</p></item>
@@ -243,8 +243,8 @@ snmp:c("MY-MIB", [{il, ["sasl/priv/mibs"]}]).</code>
       loading the MIBs into the agent. Some MIB implementations are
       code-only, while others need a server. One way, used by the
       code-only MIB implementations, is for the user to call a
-      function such as <c>otp_mib:init(Agent)</c> to load the MIB,
-      and <c>otp_mib:stop(Agent)</c> to unload the MIB. See the
+      function such as <c>otp_mib:load(Agent)</c> to load the MIB,
+      and <c>otp_mib:unload(Agent)</c> to unload the MIB. See the
       manual page for each application for a description of how
       to load each MIB.</p>
     </section>
diff --git a/system/doc/oam/warning.gif b/system/doc/oam/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/system/doc/oam/warning.gif
+++ /dev/null
diff --git a/system/doc/reference_manual/typespec.xml b/system/doc/reference_manual/typespec.xml
index a0ea41cb3b..f6a19397c3 100644
--- a/system/doc/reference_manual/typespec.xml
+++ b/system/doc/reference_manual/typespec.xml
@@ -4,7 +4,7 @@
 <chapter>
   <header>
     <copyright>
-      <year>2003</year><year>2016</year>
+      <year>2003</year><year>2017</year>
       <holder>Ericsson AB. All Rights Reserved.</holder>
     </copyright>
     <legalnotice>
@@ -133,17 +133,17 @@
 
   Map :: map()                                 %% denotes a map of any size
        | #{}                                   %% denotes the empty map
-       | #{PairList}
+       | #{AssociationList}
 
   Tuple :: tuple()                             %% denotes a tuple of any size
          | {}
          | {TList}
 
-  PairList :: Pair
-            | Pair, PairList
+  AssociationList :: Association
+                   | Association, AssociationList
 
-  Pair :: Type := Type                         %% denotes a mandatory pair
-        | Type => Type                         %% denotes an optional pair
+  Association :: Type := Type                  %% denotes a mandatory association
+               | Type => Type                  %% denotes an optional association
 
   TList :: Type
          | Type, TList
@@ -173,14 +173,17 @@
     The notation <c>[]</c> specifies the singleton type for the empty list.
   </p>
   <p>
-    The general form of maps is <c>#{PairList}</c>. The key types in
-    <c>PairList</c> are allowed to overlap, and if they do, the
-    leftmost pair takes precedence. A map pair has a key in
-    <c>PairList</c> if it belongs to this type. A <c>PairList</c> may contain
-    both 'mandatory' and 'optional' pairs where 'mandatory' denotes that
-    a key type, and its associated value type, must be present.
-    In the case of an 'optional' pair it is not required for the key type to
-    be present.
+    The general form of map types is <c>#{AssociationList}</c>.
+    The key types in
+    <c>AssociationList</c> are allowed to overlap, and if they do, the
+    leftmost association takes precedence. A map association has a key in
+    <c>AssociationList</c> if it belongs to this type.
+    <c>AssociationList</c> can contain both mandatory and optional
+    association types.
+    If an association type is mandatory, an association with that type
+    is to be present.
+    In the case of an optional association type it is not required for
+    the key type to be present.
   </p>
   <p>
     Notice that the syntactic representation of <c>map()</c> is
@@ -512,8 +515,8 @@
     <p>
       Currently, the <c>::</c> constraint
       (read as &laquo;is a subtype of&raquo;) is
-      the only guard constraint that can be used in the <c>'when'</c>
-      part of a <c>'-spec'</c> attribute.
+      the only guard constraint that can be used in the <c>when</c>
+      part of a <c>-spec</c> attribute.
     </p>
     <note>
       <p>
diff --git a/system/doc/system_architecture_intro/note.gif b/system/doc/system_architecture_intro/note.gif
deleted file mode 100644
index 6fffe30419..0000000000
--- a/system/doc/system_architecture_intro/note.gif
+++ /dev/null
diff --git a/system/doc/system_architecture_intro/warning.gif b/system/doc/system_architecture_intro/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/system/doc/system_architecture_intro/warning.gif
+++ /dev/null
diff --git a/system/doc/system_principles/warning.gif b/system/doc/system_principles/warning.gif
deleted file mode 100644
index 96af52360e..0000000000
--- a/system/doc/system_principles/warning.gif
+++ /dev/null
diff --git a/system/doc/tutorial/port_driver.c b/system/doc/tutorial/port_driver.c
index 37de67310f..8b441733ed 100644
--- a/system/doc/tutorial/port_driver.c
+++ b/system/doc/tutorial/port_driver.c
@@ -51,8 +51,7 @@ ErlDrvEntry example_driver_entry = {
 				   queue */
     NULL,                       /* F_PTR call, much like control, sync call
 				   to driver */
-    NULL,                       /* F_PTR event, called when an event selected 
-				   by driver_event() occurs. */
+    NULL,                       /* unused */
     ERL_DRV_EXTENDED_MARKER,    /* int extended marker, Should always be 
 				   set to indicate driver versioning */
     ERL_DRV_EXTENDED_MAJOR_VERSION, /* int major_version, should always be