OTP-21.2

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+Patch Package:           OTP 21.2
+Git Tag:                 OTP-21.2
+Date:                    2018-12-11
+Trouble Report Id:       OTP-12242, OTP-13468, OTP-14669, OTP-15094,
+                         OTP-15121, OTP-15245, OTP-15302, OTP-15312,
+                         OTP-15314, OTP-15338, OTP-15339, OTP-15343,
+                         OTP-15346, OTP-15357, OTP-15360, OTP-15364,
+                         OTP-15365, OTP-15368, OTP-15371, OTP-15377,
+                         OTP-15378, OTP-15384, OTP-15387, OTP-15388,
+                         OTP-15389, OTP-15391, OTP-15400, OTP-15402,
+                         OTP-15412, OTP-15413, OTP-15415, OTP-15416,
+                         OTP-15418, OTP-15419, OTP-15420, OTP-15424,
+                         OTP-15426, OTP-15428, OTP-15435, OTP-15436,
+                         OTP-15437, OTP-15446, OTP-15449, OTP-15450,
+                         OTP-15453, OTP-15454, OTP-15461, OTP-15463,
+                         OTP-15464, OTP-15465, OTP-15466, OTP-15467,
+                         OTP-15469, OTP-15470, OTP-15471, OTP-15472,
+                         OTP-15473, OTP-15474, OTP-15475, OTP-15476,
+                         OTP-15478, OTP-15481, OTP-15482
+Seq num:                 ERIERL-189, ERIERL-229, ERIERL-268,
+                         ERIERL-278, ERL-561, ERL-696, ERL-698,
+                         ERL-706, ERL-722, ERL-731, ERL-733, ERL-736,
+                         ERL-741, ERL-755, ERL-756, ERL-759, ERL-762,
+                         ERL-763, ERL-770, ERL-777, ERL-778, ERL-780,
+                         ERL-782, ERL-784, ERL-788
+System:                  OTP
+Release:                 21
+Application:             asn1-5.0.8, compiler-7.3, crypto-4.4,
+                         erts-10.2, et-1.6.4, hipe-3.18.2,
+                         inets-7.0.3, kernel-6.2, observer-2.8.2,
+                         os_mon-2.4.7, public_key-1.6.4,
+                         reltool-0.7.8, sasl-3.3, ssh-4.7.2, ssl-9.1,
+                         stdlib-3.7, tools-3.0.2, wx-1.8.6
+Predecessor:             OTP 21.1.4
+
+ Check out the git tag OTP-21.2, and build a full OTP system including
+ documentation. Apply one or more applications from this build as
+ patches to your installation using the 'otp_patch_apply' tool. For
+ information on install requirements, see descriptions for each
+ application version below.
+
+ ---------------------------------------------------------------------
+ --- HIGHLIGHTS ------------------------------------------------------
+ ---------------------------------------------------------------------
+
+  OTP-13468    Application(s): erts, sasl
+
+               New counters and atomics modules supplies access to
+               highly efficient operations on mutable fixed word sized
+               variables.
+
+
+  OTP-14669    Application(s): erts
+               Related Id(s): PR-1989
+
+               There is a new module persistent_term that implements a
+               term storage suitable for terms that are frequently
+               used but never or infrequently updated. Lookups are
+               done in constant time without copying the terms.
+
+
+  OTP-15094    Application(s): ssh
+               Related Id(s): OTP-15419
+
+               Added public key methods ssh-ed25519 and ssh-ed448.
+
+               Requires OpenSSL 1.1.1 or higher as cryptolib under the
+               OTP application crypto.
+
+
+  OTP-15449    Application(s): ssl
+
+               *** POTENTIAL INCOMPATIBILITY ***
+
+               ssl now uses active n internally to boost performance.
+               Old active once behavior can be restored by setting
+               application variable see manual page for ssl
+               application (man 6).
+
+
+  OTP-15475    Application(s): erts
+               Related Id(s): ERIERL-229
+
+               Add a new pollset that is made to handle sockets that
+               use {active, true} or {active, N}. The new pollset will
+               not be polled by a pollthread, but instead polled by a
+               normal scheduler.
+
+               This change was made because of the overhead associated
+               with constantly having to re-apply the ONESHOT
+               mechanism on fds that all input events were
+               interesting.
+
+               The new pollset is only active on platforms that
+               support concurrent kernel poll updates, i.e. Linux and
+               BSD.
+
+
+ ---------------------------------------------------------------------
+ --- POTENTIAL INCOMPATIBILITIES -------------------------------------
+ ---------------------------------------------------------------------
+
+  OTP-15364    Application(s): kernel
+
+               A new function, logger:update_handler_config/3 is
+               added, and the handler callback changing_config now has
+               a new argument, SetOrUpdate, which indicates if the
+               configuration change comes from set_handler_config/2,3
+               or update_handler_config/2,3.
+
+               This allows the handler to consistently merge the new
+               configuration with the old (if the change comes from
+               update_handler_config/2,3) or with the default (if the
+               change comes from set_handler_config/2,3).
+
+               The built-in handlers logger_std_h and
+               logger_disk_log_h are updated accordingly. A bug which
+               could cause inconsistency between the handlers'
+               internal state and the stored configuration is also
+               corrected.
+
+
+  OTP-15449    Application(s): ssl
+
+               *** HIGHLIGHT ***
+
+               ssl now uses active n internally to boost performance.
+               Old active once behavior can be restored by setting
+               application variable see manual page for ssl
+               application (man 6).
+
+
+ ---------------------------------------------------------------------
+ --- asn1-5.0.8 ------------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The asn1-5.0.8 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15470    Application(s): asn1
+               Related Id(s): ERIERL-278
+
+               Handle erroneous length during decode (BER only)
+               without crashing.
+
+
+ Full runtime dependencies of asn1-5.0.8: erts-7.0, kernel-3.0,
+ stdlib-2.0
+
+
+ ---------------------------------------------------------------------
+ --- compiler-7.3 ----------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The compiler-7.3 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15400    Application(s): compiler
+               Related Id(s): ERL-759
+
+               Fixed a rare internal consistency failure caused by a
+               bug in the beam_jump pass. (Thanks to Simon Cornish for
+               reporting this bug.)
+
+
+  OTP-15435    Application(s): compiler
+               Related Id(s): ERL-778
+
+               The compiler could fail with an internal consistency
+               check failure when compiling code that used the
+               is_function/2 BIF.
+
+
+  OTP-15437    Application(s): compiler, stdlib
+               Related Id(s): ERL-762
+
+               When an external fun was used, warnings for unused
+               variables could be suppressed.
+
+
+  OTP-15481    Application(s): compiler
+
+               The compiler would crash when compiling an after block
+               that called erlang:raise/3 like this:
+               erlang:raise(Class, Stacktrace, Stacktrace)
+
+
+ --- Improvements and New Features ---
+
+  OTP-15245    Application(s): compiler, stdlib
+               Related Id(s): ERL-706
+
+               When specified, the +{source,Name} option will now
+               override the actual file name in stack traces, instead
+               of only affecting the return value of
+               Mod:module_info().
+
+               The +deterministic flag will also affect stack traces
+               now, omitting all path information except the file
+               name, fixing a long-standing issue where deterministic
+               builds required deterministic paths.
+
+
+ Full runtime dependencies of compiler-7.3: crypto-3.6, erts-9.0,
+ hipe-3.12, kernel-4.0, stdlib-2.5
+
+
+ ---------------------------------------------------------------------
+ --- crypto-4.4 ------------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The crypto-4.4 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15302    Application(s): crypto
+
+               Updated the RSA options part in the crypto
+               application's C-code, documentation and tests.
+
+
+ --- Improvements and New Features ---
+
+  OTP-15419    Application(s): crypto, public_key
+               Related Id(s): OTP-15094
+
+               Added ed25519 and ed448 sign/verify.
+
+               Requires OpenSSL 1.1.1 or higher as cryptolib under the
+               OTP application crypto.
+
+
+  OTP-15467    Application(s): crypto
+
+               Fixed valgrind warnings.
+
+
+ Full runtime dependencies of crypto-4.4: erts-9.0, kernel-5.3,
+ stdlib-3.4
+
+
+ ---------------------------------------------------------------------
+ --- erts-10.2 -------------------------------------------------------
+ ---------------------------------------------------------------------
+
+ Note! The erts-10.2 application can *not* be applied independently of
+       other applications on an arbitrary OTP 21 installation.
+
+       On a full OTP 21 installation, also the following runtime
+       dependencies have to be satisfied:
+       -- kernel-6.1 (first satisfied in OTP 21.1)
+       -- sasl-3.3 (first satisfied in OTP 21.2)
+
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-12242    Application(s): erts
+               Related Id(s): ERL-561
+
+               When a process was waiting for a TCP socket send
+               operation to complete, and another process closed the
+               socket during that send, the sending process could
+               hang. This bug has now been corrected.
+
+
+  OTP-15343    Application(s): erts, stdlib
+               Related Id(s): PR-1962
+
+               Document bit_size in match specifications and allow it
+               in ets:fun2ms.
+
+
+  OTP-15346    Application(s): erts
+
+               Fixed bug in ets:select_replace when called with a
+               fully bound key could cause a following call to
+               ets:next or ets:prev to crash the emulator or return
+               invalid result.
+
+
+  OTP-15360    Application(s): erts
+
+               When a module has been purged from memory, any literals
+               belonging to that module will be copied to all
+               processes that hold references to them. The max heap
+               size limit would be ignored in the garbage collection
+               initiated when copying literals to a process. If the
+               max heap size was exceeded, the process would typically
+               be terminated in the following garbage collection.
+               Corrected to terminate the process directly if copying
+               a literal would exceed the max heap size.
+
+
+  OTP-15389    Application(s): erts
+
+               Fix compilation of run_erl on Solaris 11.4 and later.
+
+
+  OTP-15436    Application(s): erts
+
+               Fixed a bug where lists:reverse/1-2 could use far too
+               many reductions. This bug was introduced in OTP 21.1.
+
+
+  OTP-15446    Application(s): erts
+               Related Id(s): PR-2024
+
+               Fixed a bug where a dirty scheduler could stay awake
+               forever if a distribution entry was removed as part of
+               a dirty GC.
+
+
+  OTP-15450    Application(s): erts
+               Related Id(s): ERIERL-229
+
+               Fix microstate accounting handing in various places.
+               Most importantly the GC states when the GC is run on a
+               dirty scheduler are now managed correctly.
+
+
+  OTP-15461    Application(s): erts
+               Related Id(s): ERL-784
+
+               Fixed bug in file:sendfile when the send operation
+               failed. For sockets in active modes it could cause
+               emulator crash or a hanging call. For sockets with
+               {active,false} an unexpected {inet_reply, _, _} message
+               could be sent to the calling process. The bug exists
+               since OTP-21.0.
+
+
+  OTP-15465    Application(s): erts
+
+               The erts configure script has been updated to reject
+               any CFLAGS that does not have -O. This in order to
+               prevent the common mistake of forgetting to add -O2 to
+               custom CFLAGS.
+
+
+  OTP-15474    Application(s): erts, stdlib
+               Related Id(s): ERIERL-229
+
+               Fix reduction count in lists:member/2
+
+
+ --- Improvements and New Features ---
+
+  OTP-13468    Application(s): erts, sasl
+
+               *** HIGHLIGHT ***
+
+               New counters and atomics modules supplies access to
+               highly efficient operations on mutable fixed word sized
+               variables.
+
+
+  OTP-14669    Application(s): erts
+               Related Id(s): PR-1989
+
+               *** HIGHLIGHT ***
+
+               There is a new module persistent_term that implements a
+               term storage suitable for terms that are frequently
+               used but never or infrequently updated. Lookups are
+               done in constant time without copying the terms.
+
+
+  OTP-15121    Application(s): erts, kernel
+               Related Id(s): ERIERL-189, PR-1974
+
+               A function inet:getifaddrs/1 that takes a list with a
+               namespace option has been added, for platforms that
+               support that feature, for example Linux (only?).
+
+
+  OTP-15357    Application(s): erts, kernel
+               Related Id(s): ERL-698
+
+               Added the nopush option for TCP sockets, which
+               corresponds to TCP_NOPUSH on *BSD and TCP_CORK on
+               Linux.
+
+               This is also used internally in file:sendfile to reduce
+               latency on subsequent send operations.
+
+
+  OTP-15371    Application(s): erts, stdlib
+
+               List subtraction (The -- operator) will now yield
+               properly on large inputs.
+
+
+  OTP-15471    Application(s): erts, kernel
+               Related Id(s): ERIERL-229
+
+               Optimize handling of send_delay for tcp sockes to
+               better work with the new pollthread implementation
+               introduced in OTP-21.
+
+
+  OTP-15472    Application(s): erts
+               Related Id(s): ERIERL-229
+
+               Optimize driver_set_timer with a zero timeout to
+               short-circuit and not create any timer structure, but
+               instead schedule the timer immediately.
+
+
+  OTP-15473    Application(s): erts
+               Related Id(s): ERIERL-229
+
+               Add erl_xcomp_code_model_small as a cross configure
+               variable in order to let the emulator be build with the
+               assumption that a small code model will be used on the
+               target machine.
+
+
+  OTP-15475    Application(s): erts
+               Related Id(s): ERIERL-229
+
+               *** HIGHLIGHT ***
+
+               Add a new pollset that is made to handle sockets that
+               use {active, true} or {active, N}. The new pollset will
+               not be polled by a pollthread, but instead polled by a
+               normal scheduler.
+
+               This change was made because of the overhead associated
+               with constantly having to re-apply the ONESHOT
+               mechanism on fds that all input events were
+               interesting.
+
+               The new pollset is only active on platforms that
+               support concurrent kernel poll updates, i.e. Linux and
+               BSD.
+
+
+  OTP-15478    Application(s): erts
+               Related Id(s): ERL-741
+
+               Fix bug where emulator would segfault if a literal
+               message was sent when sequence tracing was enabled.
+
+
+ Full runtime dependencies of erts-10.2: kernel-6.1, sasl-3.3,
+ stdlib-3.5
+
+
+ ---------------------------------------------------------------------
+ --- et-1.6.4 --------------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The et-1.6.4 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15463    Application(s): et
+               Related Id(s): ERL-780
+
+               The scroll bar of the et_viewer window could not be
+               dragged all the way to the top of the window. It would
+               always stop at the second event. This is now corrected.
+
+
+ Full runtime dependencies of et-1.6.4: erts-9.0, kernel-5.3,
+ runtime_tools-1.10, stdlib-3.4, wx-1.2
+
+
+ ---------------------------------------------------------------------
+ --- hipe-3.18.2 -----------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The hipe-3.18.2 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Improvements and New Features ---
+
+  OTP-15482    Application(s): hipe
+
+               The code was updated to avoid causing a dialyzer
+               warning because of a tightened spec for
+               beam_lib:info/1.
+
+
+ Full runtime dependencies of hipe-3.18.2: compiler-5.0, erts-9.3,
+ kernel-5.3, stdlib-3.4, syntax_tools-1.6.14
+
+
+ ---------------------------------------------------------------------
+ --- inets-7.0.3 -----------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The inets-7.0.3 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15338    Application(s): inets
+               Related Id(s): ERL-733
+
+               Fixed http client to not send 'content-length' header
+               in chunked encoded requests.
+
+
+  OTP-15339    Application(s): inets
+               Related Id(s): ERL-736
+
+               Fixed http client to not drop explicit 'Content-Type'
+               header in requests without a body such as requests with
+               the 'Content-Type' of
+               application/x-www-form-urlencoded.
+
+
+ Full runtime dependencies of inets-7.0.3: erts-6.0, kernel-3.0,
+ mnesia-4.12, runtime_tools-1.8.14, ssl-5.3.4, stdlib-3.5
+
+
+ ---------------------------------------------------------------------
+ --- kernel-6.2 ------------------------------------------------------
+ ---------------------------------------------------------------------
+
+ Note! The kernel-6.2 application can *not* be applied independently
+       of other applications on an arbitrary OTP 21 installation.
+
+       On a full OTP 21 installation, also the following runtime
+       dependency has to be satisfied:
+       -- erts-10.1 (first satisfied in OTP 21.1)
+
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15364    Application(s): kernel
+
+               *** POTENTIAL INCOMPATIBILITY ***
+
+               A new function, logger:update_handler_config/3 is
+               added, and the handler callback changing_config now has
+               a new argument, SetOrUpdate, which indicates if the
+               configuration change comes from set_handler_config/2,3
+               or update_handler_config/2,3.
+
+               This allows the handler to consistently merge the new
+               configuration with the old (if the change comes from
+               update_handler_config/2,3) or with the default (if the
+               change comes from set_handler_config/2,3).
+
+               The built-in handlers logger_std_h and
+               logger_disk_log_h are updated accordingly. A bug which
+               could cause inconsistency between the handlers'
+               internal state and the stored configuration is also
+               corrected.
+
+
+  OTP-15388    Application(s): kernel
+               Related Id(s): PR-1983
+
+               Fix fallback when custom erl_epmd client does not
+               implement address_please.
+
+
+  OTP-15453    Application(s): kernel
+               Related Id(s): ERL-782
+
+               The logger ets table did not have the read_concurrency
+               option. This is now added.
+
+
+  OTP-15466    Application(s): kernel
+               Related Id(s): ERL-788
+
+               During system start, logger has a simple handler which
+               prints to stdout. After the kernel supervision is
+               started, this handler is removed and replaced by the
+               default handler. Due to a bug, logger earlier issued a
+               debug printout saying it received an unexpected
+               message, which was the EXIT message from the simple
+               handler's process. This is now corrected. The simple
+               handler's process now unlinks from the logger process
+               before terminating.
+
+
+  OTP-15469    Application(s): kernel
+
+               The logger handler logger_std_h would not re-create
+               it's log file if it was removed. Due to this it could
+               not be used with tools like 'logrotate'. This is now
+               corrected.
+
+
+ --- Improvements and New Features ---
+
+  OTP-15121    Application(s): erts, kernel
+               Related Id(s): ERIERL-189, PR-1974
+
+               A function inet:getifaddrs/1 that takes a list with a
+               namespace option has been added, for platforms that
+               support that feature, for example Linux (only?).
+
+
+  OTP-15357    Application(s): erts, kernel
+               Related Id(s): ERL-698
+
+               Added the nopush option for TCP sockets, which
+               corresponds to TCP_NOPUSH on *BSD and TCP_CORK on
+               Linux.
+
+               This is also used internally in file:sendfile to reduce
+               latency on subsequent send operations.
+
+
+  OTP-15471    Application(s): erts, kernel
+               Related Id(s): ERIERL-229
+
+               Optimize handling of send_delay for tcp sockes to
+               better work with the new pollthread implementation
+               introduced in OTP-21.
+
+
+ Full runtime dependencies of kernel-6.2: erts-10.1, sasl-3.0,
+ stdlib-3.5
+
+
+ ---------------------------------------------------------------------
+ --- observer-2.8.2 --------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The observer-2.8.2 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15365    Application(s): observer
+               Related Id(s): ERL-722
+
+               Literals such as #{"one"=>1} dumped to a crash dump
+               would cause crashdump_viewer to crash.
+
+
+  OTP-15377    Application(s): observer
+
+               crashdump_viewer would sometimes crash when processing
+               a dump which was truncated in the literals area. This
+               is now corrected.
+
+
+  OTP-15391    Application(s): observer
+
+               Since OTP-20.2, crashdump_viewer was very slow when
+               opening a crash dump with many processes. An ets:select
+               per process could be removed, which improved the
+               performance a lot.
+
+               A bug when parsing heap data in a crashdump caused
+               crashdump_viewer to crash when multiple Yc lines
+               referenced the same reference counted binary. This is
+               now corrected.
+
+
+ Full runtime dependencies of observer-2.8.2: erts-7.0, et-1.5,
+ kernel-3.0, runtime_tools-1.8.14, stdlib-3.5, wx-1.2
+
+
+ ---------------------------------------------------------------------
+ --- os_mon-2.4.7 ----------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The os_mon-2.4.7 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15387    Application(s): os_mon
+               Related Id(s): PR-1966
+
+               Due to /proc restrictions in newer Android releases
+               enforced by SELinux, cpu_sup is fixed so that it gets
+               some basic CPU stats using the sysinfo syscall rather
+               than reading /proc/loadavg.
+
+
+ Full runtime dependencies of os_mon-2.4.7: erts-6.0, kernel-3.0,
+ mnesia-4.12, otp_mibs-1.0.9, sasl-2.4, snmp-4.25.1, stdlib-2.0
+
+
+ ---------------------------------------------------------------------
+ --- public_key-1.6.4 ------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The public_key-1.6.4 application can be applied independently of
+ other applications on a full OTP 21 installation.
+
+ --- Improvements and New Features ---
+
+  OTP-15419    Application(s): crypto, public_key
+               Related Id(s): OTP-15094
+
+               Added ed25519 and ed448 sign/verify.
+
+               Requires OpenSSL 1.1.1 or higher as cryptolib under the
+               OTP application crypto.
+
+
+ Full runtime dependencies of public_key-1.6.4: asn1-3.0, crypto-3.8,
+ erts-6.0, kernel-3.0, stdlib-3.5
+
+
+ ---------------------------------------------------------------------
+ --- reltool-0.7.8 ---------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The reltool-0.7.8 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15454    Application(s): reltool
+
+               Reltool would earlier erroneously split paths like
+               "c:\foo" into ["c","\foo"] when reading the $ERL_LIBS
+               variable on windows. This is now corrected.
+
+
+ Full runtime dependencies of reltool-0.7.8: erts-7.0, kernel-3.0,
+ sasl-2.4, stdlib-3.4, tools-2.6.14, wx-1.2
+
+
+ ---------------------------------------------------------------------
+ --- sasl-3.3 --------------------------------------------------------
+ ---------------------------------------------------------------------
+
+ Note! The sasl-3.3 application can *not* be applied independently of
+       other applications on an arbitrary OTP 21 installation.
+
+       On a full OTP 21 installation, also the following runtime
+       dependency has to be satisfied:
+       -- erts-10.2 (first satisfied in OTP 21.2)
+
+
+ --- Improvements and New Features ---
+
+  OTP-13468    Application(s): erts, sasl
+
+               *** HIGHLIGHT ***
+
+               New counters and atomics modules supplies access to
+               highly efficient operations on mutable fixed word sized
+               variables.
+
+
+ Full runtime dependencies of sasl-3.3: erts-10.2, kernel-5.3,
+ stdlib-3.4, tools-2.6.14
+
+
+ ---------------------------------------------------------------------
+ --- ssh-4.7.2 -------------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The ssh-4.7.2 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15413    Application(s): ssh
+
+               Incompatibility with newer OpenSSH fixed. Previously
+               versions 7.8 and later could cause Erlang SSH to exit.
+
+
+  OTP-15416    Application(s): ssh
+
+               The 'exec' option for ssh daemons had wrong format in
+               the documentation.
+
+
+ --- Improvements and New Features ---
+
+  OTP-15094    Application(s): ssh
+               Related Id(s): OTP-15419
+
+               *** HIGHLIGHT ***
+
+               Added public key methods ssh-ed25519 and ssh-ed448.
+
+               Requires OpenSSL 1.1.1 or higher as cryptolib under the
+               OTP application crypto.
+
+
+  OTP-15312    Application(s): ssh
+
+               The SSH property tests are now adapted to the PropEr
+               testing tool.
+
+
+  OTP-15314    Application(s): ssh
+
+               The term "user" was not documented in the SSH app. A
+               new chapter with terminology is added to the User's
+               Manual where the term "user" is defined.
+
+               A reference manual page about the module ssh_file is
+               also added. This is the default callback module for
+               user's keys, host keys etc.
+
+
+  OTP-15424    Application(s): ssh
+
+               Host and user key checking is made more robust.
+
+
+ Full runtime dependencies of ssh-4.7.2: crypto-4.2, erts-6.0,
+ kernel-3.0, public_key-1.5.2, stdlib-3.3
+
+
+ ---------------------------------------------------------------------
+ --- ssl-9.1 ---------------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The ssl-9.1 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15368    Application(s): ssl
+
+               PEM cache was not evicting expired entries due to due
+               to timezone confusion.
+
+
+  OTP-15384    Application(s): ssl
+               Related Id(s): ERL-756
+
+               Make sure an error is returned if a "transport_accept
+               socket" is used in some other call than ssl:handshake*
+               or ssl:controlling_process
+
+
+  OTP-15402    Application(s): ssl
+
+               Fix timestamp handling in the PEM-cache could cause
+               entries to not be invalidated at the correct time.
+
+
+  OTP-15412    Application(s): ssl
+               Related Id(s): ERL-731
+
+               Extend check for undelivered data at closing, could
+               under some circumstances fail to deliver all data that
+               was actually received.
+
+
+  OTP-15415    Application(s): ssl
+               Related Id(s): ERL-763
+
+               Correct signature check for TLS-1.2 that allows
+               different algorithms for signature of peer cert and
+               peer cert key. Not all allowed combinations where
+               accepted.
+
+
+  OTP-15418    Application(s): ssl
+               Related Id(s): ERL-770
+
+               Correct gen_statem return value, could cause
+               renegotiation to fail.
+
+
+ --- Improvements and New Features ---
+
+  OTP-15420    Application(s): ssl
+               Related Id(s): ERIERL-268
+
+               Add engine support for RSA key exchange
+
+
+  OTP-15449    Application(s): ssl
+
+               *** HIGHLIGHT ***
+
+               *** POTENTIAL INCOMPATIBILITY ***
+
+               ssl now uses active n internally to boost performance.
+               Old active once behavior can be restored by setting
+               application variable see manual page for ssl
+               application (man 6).
+
+
+ Full runtime dependencies of ssl-9.1: crypto-4.2, erts-10.0,
+ inets-5.10.7, kernel-6.0, public_key-1.5, stdlib-3.5
+
+
+ ---------------------------------------------------------------------
+ --- stdlib-3.7 ------------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The stdlib-3.7 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15343    Application(s): erts, stdlib
+               Related Id(s): PR-1962
+
+               Document bit_size in match specifications and allow it
+               in ets:fun2ms.
+
+
+  OTP-15378    Application(s): stdlib
+               Related Id(s): ERL-696
+
+               The beam() type in beam_lib is defined as module() |
+               file:filename() | binary(). The module() is misleading.
+               Giving the module name as an atom will only work if the
+               BEAM file is in a current directory.
+
+               To avoid confusion, module() has been removed from the
+               type. That means that there will be a Dialyzer warning
+               for code that call beam_lib with an atom as filename,
+               but the calls will still work.
+
+
+  OTP-15428    Application(s): stdlib
+               Related Id(s): ERL-777
+
+               unicode_util crashed on certain emoji grapheme clusters
+               in binary strings.
+
+
+  OTP-15437    Application(s): compiler, stdlib
+               Related Id(s): ERL-762
+
+               When an external fun was used, warnings for unused
+               variables could be suppressed.
+
+
+  OTP-15474    Application(s): erts, stdlib
+               Related Id(s): ERIERL-229
+
+               Fix reduction count in lists:member/2
+
+
+ --- Improvements and New Features ---
+
+  OTP-15245    Application(s): compiler, stdlib
+               Related Id(s): ERL-706
+
+               When specified, the +{source,Name} option will now
+               override the actual file name in stack traces, instead
+               of only affecting the return value of
+               Mod:module_info().
+
+               The +deterministic flag will also affect stack traces
+               now, omitting all path information except the file
+               name, fixing a long-standing issue where deterministic
+               builds required deterministic paths.
+
+
+  OTP-15371    Application(s): erts, stdlib
+
+               List subtraction (The -- operator) will now yield
+               properly on large inputs.
+
+
+  OTP-15464    Application(s): stdlib
+
+               calendar:system_time_to_rfc3339/1,2 no longer remove
+               trailing zeros from fractions.
+
+
+ Full runtime dependencies of stdlib-3.7: compiler-5.0, crypto-3.3,
+ erts-10.0, kernel-6.0, sasl-3.0
+
+
+ ---------------------------------------------------------------------
+ --- tools-3.0.2 -----------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The tools-3.0.2 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Improvements and New Features ---
+
+  OTP-15476    Application(s): tools
+
+               Remove emacs warnings and added more tests.
+
+
+ Full runtime dependencies of tools-3.0.2: compiler-5.0, erts-9.1,
+ kernel-5.4, runtime_tools-1.8.14, stdlib-3.4
+
+
+ ---------------------------------------------------------------------
+ --- wx-1.8.6 --------------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The wx-1.8.6 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15426    Application(s): wx
+               Related Id(s): ERL-755
+
+               Fixed delayed delete bug which caused wx applications
+               to crash on Mojave.
+
+
+ Full runtime dependencies of wx-1.8.6: erts-6.0, kernel-3.0,
+ stdlib-2.0
+
+
+ ---------------------------------------------------------------------
+ ---------------------------------------------------------------------
+ ---------------------------------------------------------------------
+