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Inital Release:          OTP 24.0
Git Tag:                 OTP-24.0
Date:                    2021-02-24
Trouble Report Id:       OTP-10391, OTP-13126, OTP-14485, OTP-14601,
                         OTP-14646, OTP-14647, OTP-14650, OTP-14700,
                         OTP-14793, OTP-15107, OTP-15523, OTP-16334,
                         OTP-16517, OTP-16560, OTP-16607, OTP-16611,
                         OTP-16653, OTP-16656, OTP-16678, OTP-16686,
                         OTP-16687, OTP-16698, OTP-16703, OTP-16706,
                         OTP-16712, OTP-16718, OTP-16720, OTP-16722,
                         OTP-16723, OTP-16724, OTP-16725, OTP-16749,
                         OTP-16750, OTP-16788, OTP-16793, OTP-16800,
                         OTP-16809, OTP-16811, OTP-16814, OTP-16822,
                         OTP-16824, OTP-16865, OTP-16867, OTP-16877,
                         OTP-16878, OTP-16879, OTP-16880, OTP-16881,
                         OTP-16882, OTP-16883, OTP-16884, OTP-16885,
                         OTP-16898, OTP-16905, OTP-16910, OTP-16926,
                         OTP-16936, OTP-16940, OTP-16943, OTP-16944,
                         OTP-16945, OTP-16947, OTP-16949, OTP-16950,
                         OTP-16952, OTP-16957, OTP-16963, OTP-16964,
                         OTP-16968, OTP-16970, OTP-16971, OTP-16974,
                         OTP-16980, OTP-16981, OTP-16986, OTP-16987,
                         OTP-16995, OTP-17001, OTP-17005, OTP-17007,
                         OTP-17014, OTP-17015, OTP-17020, OTP-17023,
                         OTP-17024, OTP-17028, OTP-17044, OTP-17049,
                         OTP-17051, OTP-17057, OTP-17059, OTP-17077,
                         OTP-17078, OTP-17084, OTP-17092, OTP-17095,
                         OTP-17103, OTP-17104, OTP-17105, OTP-17106,
                         OTP-17117, OTP-17118, OTP-17120, OTP-17121,
                         OTP-17122, OTP-17123, OTP-17131, OTP-17133,
                         OTP-17140, OTP-17153, OTP-17156, OTP-17162,
                         OTP-17166, OTP-17168, OTP-17170, OTP-17171,
                         OTP-17172, OTP-17175, OTP-17177, OTP-17180,
                         OTP-17181, OTP-17183, OTP-17189, OTP-17192,
                         OTP-17198, OTP-17199, OTP-17201, OTP-17206,
                         OTP-17207, OTP-17210, OTP-17213, OTP-17214,
                         OTP-17216, OTP-17217, OTP-17219
Seq num:                 ERL-1113, ERL-1281, ERL-1308, ERL-1313,
                         ERL-1332, ERL-1335, ERL-1348, ERL-1354,
                         ERL-1367, ERL-1378, ERL-1379, ERL-1380,
                         ERL-1381, ERL-1430, ERL-1431, ERL-1450,
                         ERL-1480, ERL-892, GH-4033, GH-4360, GH-4473,
                         GH-4493
System:                  OTP
Release:                 24
Application:             asn1-5.1, common_test-1.19.2, compiler-8.0,
                         crypto-5.0, debugger-5.1, dialyzer-4.4,
                         edoc-1.0, eldap-1.2.9, erl_docgen-1.1,
                         erl_interface-5.0, erts-12.0, et-1.7,
                         ftp-1.1, inets-7.4, jinterface-1.12,
                         kernel-8.0, megaco-4.0, mnesia-4.18.2,
                         observer-2.9.6, odbc-2.13.3, os_mon-2.7,
                         parsetools-2.3, reltool-0.9,
                         runtime_tools-1.15.2, sasl-4.1, snmp-5.7.4,
                         ssh-4.11, ssl-10.3, stdlib-3.15,
                         syntax_tools-2.5, tools-3.5, wx-2.0,
                         xmerl-1.4
Predecessor:             OTP

 Check out the git tag OTP-24.0, and build a full OTP system including
 documentation.

 ---------------------------------------------------------------------
 --- HIGHLIGHTS ------------------------------------------------------
 ---------------------------------------------------------------------

  OTP-15523    Application(s): ftp
               Related Id(s): OTP-15352, PR-1968

               Add support for FTPES (explicit FTP over TLS).


  OTP-16611    Application(s): kernel
               Related Id(s): OTP-16749

               A compatibility adaptor for gen_tcp to use the new
               socket API has been implemented (gen_tcp_socket). Used
               when setting the kernel application variable
               inet_backend = socket.


  OTP-16686    Application(s): debugger, erts, kernel, stdlib

               Extended error information for failing BIF calls as
               proposed in EEP 54 has been implemented.

               When a BIF call from the Erlang shell fails, more
               information about which argument or arguments that were
               in error will be printed. The same extended error
               information will by proc_lib, common_test, and qlc when
               BIF calls fail.

               For applications that wish to provide the same extended
               error information, there are new functions
               erl_error:format_exception/3 and
               erl_error:format_exception/4.

               There is a new error/3 BIF that allows applications or
               libraries to provide extended error information in the
               same way for their own exceptions.


  OTP-16706    Application(s): compiler
               Related Id(s): ERL-1281

               Variables bound between the keywords 'try' and 'of' can
               now be used in the clauses following the 'of' keyword
               (that is, in the success case when no exception was
               raised).


  OTP-16718    Application(s): erts, kernel, stdlib
               Related Id(s): PR-2735

               Process aliases as outlined by EEP 53 has been
               introduced. Process aliases is introduced in order to
               provide a lightweight mechanism that can prevent late
               replies after timeout or connection loss. For more
               information, see EEP 53 and the documentation of the
               new alias/1 BIF and the new options to the monitor/3
               BIF.

               The call operation in the framework used by gen_server,
               gen_statem, and gen_event has been updated to utilize
               alias in order to prevent late responses. The
               gen_statem behavior still use a proxy process in the
               distributed case, since it has always prevented late
               replies and aliases wont work against pre OTP 24 nodes.
               The proxy process can be removed in OTP 26.

               The alias feature also made it possible to introduce
               new functions similar to the erpc:receive_response()
               function in the gen behaviors, so the new functions
               gen_server:receive_response(),
               gen_statem:receive_response(),
               gen_event:receive_response() have also been introduced.


  OTP-16800    Application(s): wx

               The application has been completely rewritten in order
               to use wxWidgets version 3 as its base.

               Add basic documentation generated from the wxWidgets
               project.


  OTP-16824    Application(s): compiler
               Related Id(s): PR-2664, PR-3006

               *** POTENTIAL INCOMPATIBILITY ***

               Compiler warnings and errors now include column numbers
               in addition to line numbers.

               When a compiler message is emitted, the source line is
               printed along with a marker (a ^ character) that
               indicates the column position of the issue. The option
               'brief' removes the printout of the source line.

               The compiler option {error_location, line | column} has
               been added. The default value is column. Besides adding
               column numbers to compilation warnings and errors, the
               option also determines whether column numbers are
               included in abstract code. If tools stop working,
               setting the environment variable ERL_COMPILER_OPTIONS
               can help (include {error_location, line}).

               The compiler will now call the function
               PT:parse_transform_info/0 in parse transforms (if it
               exists). It can be used by parse transforms to signal
               that they can only handle line numbers in abstract
               code.


  OTP-16885    Application(s): erts
               Related Id(s): PR-2745

               The BeamAsm JIT-compiler has been added to Erlang/OTP.
               The JIT-compiler is enabled by default on most x86
               64-bit platforms that have a C++ compiler that can
               compile C++17. To verify that a JIT enabled emulator is
               running you can use erlang:system_info(emu_flavor).

               For more information see the internal documentation of
               BeamAsm in erts.


  OTP-16949    Application(s): edoc
               Related Id(s): OTP-17192, PR-2803

               *** POTENTIAL INCOMPATIBILITY ***

               EDoc, the Erlang documentation engine, hits version 1.0
               with this release, which means a few changes.

               EDoc is now capable of emitting EEP-48 doc chunks. This
               means that, with some configuration, community projects
               can now provide documentation for shell_docs the same
               way that OTP libraries did since OTP 23.0.

               The @spec and @type EDoc tags have been deprecated.
               These are not supported with the new chunk-generating
               doclet and layout. Moreover, previously when there was
               a redundant @spec tag and -spec attribute defined for
               the same function, the @spec tag would take precedence.
               Now, the -spec attribute takes precedence and is more
               important. The same is true for redundant @type tags
               and -type attributes. Warnings are now emitted when
               such redundant entries are found.

               See the Doc chunks chapter in the Edoc User's Guide for
               more details.


  OTP-16964    Application(s): compiler

               Generators in list and binary comprehensions will now
               raise a {bad_generator,Generator} exception if the
               generator has an incorrect type (instead of raising an
               ad-hoc badarg or badarih exception). Similarly, when a
               filter does not evaluate to a boolean, a
               {bad_filter,Filter} exception will be raised. Some
               minor bugs in the compilation of binary comprehensions
               have also been fixed.


  OTP-16981    Application(s): compiler
               Related Id(s): ERL-1113

               Some compiler warnings, such as the warning for an
               expression whose result is ignored, could not be
               suppressed by assigning to a variable beginning with
               '_', but only by assigning to the anonymous variable
               ('_'). This has now been changed so that any warning
               that can be suppressed by assigning to the anonymous
               variable can also be suppressed by assigning to a
               variable beginning with '_'.


  OTP-17044    Application(s): ssl
               Related Id(s): PR-2654

               Make TLS handshakes in Erlang distribution concurrent.


  OTP-17213    Application(s): wx
               Related Id(s): PR-3027

               Added support for wxWebView.


 ---------------------------------------------------------------------
 --- POTENTIAL INCOMPATIBILITIES -------------------------------------
 ---------------------------------------------------------------------

  OTP-15107    Application(s): stdlib
               Related Id(s): ERL-1381, PR-2813

               Time-outs in gen_statem with relative time 0 did not
               behave quite according to the intended model. This has
               now been corrected.

               The correction introduces a small potential
               incompatibility e.g when combining a state time-out
               with inserted events, and the inserted event does a
               state change in the state with the time-out. Before
               this correction the state time-out could be delivered
               even after the second state change, but now it is
               guaranteed that a state time-out is only delivered in
               the state it was started for, even in this corner case.


  OTP-16560    Application(s): megaco

               All the pre-v3 codec(s) (prev3a, prev3b and prev3c) was
               deprecated in OTP-23.0. They have now been removed.


  OTP-16656    Application(s): crypto

               The functions and cipher names that were deprecated in
               OTP-23.0 are now removed.


  OTP-16749    Application(s): erts, kernel
               Related Id(s): OTP-14601

               The experimental new socket API has been further
               developed. Some backwards incompatible changes with
               respect to OTP 23 have been made.

               The control message format has been changed so a
               decoded value is now in the 'value' field instead of in
               the 'data' field. The 'data' field now always contains
               binary data.

               Some type names have been changed regarding message
               headers and control message headers.

               socket:bind/2 now returns plain ok instead of {ok,
               Port} which was only relevant for the inet and inet6
               address families and often not interesting. To find out
               which port was chosen use socket:sockname/1.


  OTP-16809    Application(s): kernel
               Related Id(s): ERL-1313

               Change the value of the tag head returned by
               disk_log:info/1 from {ok, Head} to just Head.


  OTP-16811    Application(s): kernel

               Remove the support for distributed disk logs. The new
               function disk_log:all/0 is to be used instead of
               disk_log:accessible_logs/0. The function
               disk_log:close/1 is to be used instead of
               disk_log:lclose/1,2.


  OTP-16824    Application(s): compiler
               Related Id(s): PR-2664, PR-3006

               *** HIGHLIGHT ***

               Compiler warnings and errors now include column numbers
               in addition to line numbers.

               When a compiler message is emitted, the source line is
               printed along with a marker (a ^ character) that
               indicates the column position of the issue. The option
               'brief' removes the printout of the source line.

               The compiler option {error_location, line | column} has
               been added. The default value is column. Besides adding
               column numbers to compilation warnings and errors, the
               option also determines whether column numbers are
               included in abstract code. If tools stop working,
               setting the environment variable ERL_COMPILER_OPTIONS
               can help (include {error_location, line}).

               The compiler will now call the function
               PT:parse_transform_info/0 in parse transforms (if it
               exists). It can be used by parse transforms to signal
               that they can only handle line numbers in abstract
               code.


  OTP-16878    Application(s): erts

               The code loader has been rewritten in order to be able
               to load JIT:ed code. As a consequence of this, it is no
               longer possible to load HiPE code.


  OTP-16943    Application(s): os_mon
               Related Id(s): OTP-16906

               The temporarily introduced configuration parameter
               memsup_improved_system_memory_data has been removed.


  OTP-16945    Application(s): erts

               Change escripts to output any errors or warnings to
               standard error instead of standard out.


  OTP-16949    Application(s): edoc
               Related Id(s): OTP-17192, PR-2803

               *** HIGHLIGHT ***

               EDoc, the Erlang documentation engine, hits version 1.0
               with this release, which means a few changes.

               EDoc is now capable of emitting EEP-48 doc chunks. This
               means that, with some configuration, community projects
               can now provide documentation for shell_docs the same
               way that OTP libraries did since OTP 23.0.

               The @spec and @type EDoc tags have been deprecated.
               These are not supported with the new chunk-generating
               doclet and layout. Moreover, previously when there was
               a redundant @spec tag and -spec attribute defined for
               the same function, the @spec tag would take precedence.
               Now, the -spec attribute takes precedence and is more
               important. The same is true for redundant @type tags
               and -type attributes. Warnings are now emitted when
               such redundant entries are found.

               See the Doc chunks chapter in the Edoc User's Guide for
               more details.


  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


  OTP-16968    Application(s): kernel

               The pg2 module has been removed.


  OTP-16970    Application(s): erl_interface

               The registry functionality part of erl_interface has
               been removed. It was as of OTP 23 deprecated and
               scheduled for removal in OTP 24.


  OTP-16971    Application(s): stdlib

               The filename:src/1 function which was deprecated in OTP
               20 has been removed. Use filelib:find_source/1,3
               instead.


  OTP-16974    Application(s): ssl

               Removed ssl:ssl_accept/1,2,3 and ssl:cipher:suites/0,1
               use ssl:handshake/1,2,3 and ssl:cipher_suites/2,3
               instead.


  OTP-16987    Application(s): erts

               The erlang:monitor_node/2 BIF will now fail with a
               notalive exception if distribution has not been started
               on the current node; it used to fail with a badarg
               exception.


  OTP-17156    Application(s): kernel

               Fix various issues with the gen_tcp_socket. Including
               documenting some incompatibilities.


  OTP-17216    Application(s): kernel
               Related Id(s): PR-2989

               The behaviour for gen_tcp:connect/3,4 has been changed
               to not per default bind to an address, which allows the
               network stack to delay the address and port selection
               to when the remote address is known. This allows better
               port re-use, and thus enables far more outgoing
               connections, since the ephemeral port range no longer
               has to be a hard limit.

               There is a theoretical possibility that this behaviour
               change can affect the set of possible error values, or
               have other small implications on some platforms.


  OTP-17219    Application(s): wx
               Related Id(s): OTP-16800

               Due to the support of the new backend versions some API
               incompatibilities have been introduced. Examples of
               changes are:

               wxWindowDC default creators have been removed
               wxClientDC default creators have been removed
               wxPaintDC default creators have been removed
               wxWindow:setVirtualSizeHints() has been deprecated in
               wxWidgets and removed
               wxWindow:makeModal() has been deprecated in wxWidgets
               and removed
               wxToolBar:add/insertTool without label have been
               deprecated in wxWidgets and removed
               wxStyledTextCtrl some functions have changed arguments
               from boolean to int
               wxSizerItem:new() Some arguments have become options
               Removed deprecated wxSizerItem:setWindow() use
               assignWindow()
               Removed deprecated wxSizerItem:setSpacer() use
               assignSpacer()
               Removed deprecated wxSizerItem:setSpacer() use
               assignSpacer()
               Removed deprecated wxSizerItem:setSizer() use
               assignSizer()
               wxMenu append/insert/prepend have changed return value
               and lost IsCheckable argument
               wxListCtrl:setItem/4 changed return value
               wxImage:convertToGreyscale() options have changed
               wxGridSizer:wxGridSizer() options have changed
               wxGrid API have many changes
               wxGraphicsRenderer:create*GradientBrush() uses
               GradientStops now
               wxGraphicsRenderer:createPen() have been removed
               wxGraphicsRenderer:create*GradientBrush() uses
               GradientStops now
               wxGLCanvas API is incompatible
               wxFlexGridSizer:wxFlexGridSizer() options have changed
               wxDisplay:new() options have changed
               wxCalendarDateAttr:new(ColText [,OptList]) have been
               removed
               wxBitmapButton:set/getBitmapSelected() have been
               removed


 ---------------------------------------------------------------------
 --- asn1-5.1 --------------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-17123    Application(s): asn1, compiler, et, xmerl

               The compiler will now emit warnings when (previously
               bound) underscore-prefixed variables are matched.


 Full runtime dependencies of asn1-5.1: erts-7.0, kernel-3.0,
 stdlib-2.0


 ---------------------------------------------------------------------
 --- common_test-1.19.2 ----------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-16940    Application(s): common_test
               Related Id(s): ERL-1335

               The option release_shell could crash when used together
               with the spec option.


 --- Improvements and New Features ---

  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


 Full runtime dependencies of common_test-1.19.2: compiler-6.0,
 crypto-3.6, debugger-4.1, erts-7.0, ftp-1.0.0, inets-6.0, kernel-4.0,
 observer-2.1, runtime_tools-1.8.16, sasl-2.4.2, snmp-5.1.2, ssh-4.0,
 stdlib-3.5, syntax_tools-1.7, tools-2.8, xmerl-1.3.8


 ---------------------------------------------------------------------
 --- compiler-8.0 ----------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-17077    Application(s): compiler, erts, stdlib
               Related Id(s): ERL-1431, PR-2903, PR-2905, PR-2906

               A floating point zero (0.0) can be both positive (+0.0)
               and negative (-0.0). Multiple bugs in the compiler,
               runtime system, and STDLIB have been fixed to ensure
               that the minus sign on 0.0 is not lost.


  OTP-17104    Application(s): compiler
               Related Id(s): ERL-1380

               A repeated stack trace variable in a try/catch was not
               rejected. The following example will now cause a
               compilation error:

               try E catch _:A:A -> A end.


  OTP-17118    Application(s): compiler, stdlib
               Related Id(s): PR-2825

               Eliminated a Dialyzer crashed when the -MMD option is
               used to generate a dependency file and a BEAM file a
               the same time.


  OTP-17206    Application(s): compiler

               When the makedep option was given, the compiler would
               crash if the dependency output contained non-latin1
               characters. The compiler will now output the dependency
               information encoded in UTF-8 to avoid crashing.


 --- Improvements and New Features ---

  OTP-10391    Application(s): compiler
               Related Id(s): OTP-16226

               Selective receive optimization will now be applied much
               more often.

               The new recv_opt_info compile flag can be used to print
               diagnostics relating to this optimization.

               You can read more about the selective receive
               optimization in the Efficiency Guide.


  OTP-16334    Application(s): compiler

               erlang:throw/1 will no longer build stack traces when
               we can prove that they will never be inspected.


  OTP-16706    Application(s): compiler
               Related Id(s): ERL-1281

               *** HIGHLIGHT ***

               Variables bound between the keywords 'try' and 'of' can
               now be used in the clauses following the 'of' keyword
               (that is, in the success case when no exception was
               raised).


  OTP-16824    Application(s): compiler
               Related Id(s): PR-2664, PR-3006

               *** HIGHLIGHT ***

               *** POTENTIAL INCOMPATIBILITY ***

               Compiler warnings and errors now include column numbers
               in addition to line numbers.

               When a compiler message is emitted, the source line is
               printed along with a marker (a ^ character) that
               indicates the column position of the issue. The option
               'brief' removes the printout of the source line.

               The compiler option {error_location, line | column} has
               been added. The default value is column. Besides adding
               column numbers to compilation warnings and errors, the
               option also determines whether column numbers are
               included in abstract code. If tools stop working,
               setting the environment variable ERL_COMPILER_OPTIONS
               can help (include {error_location, line}).

               The compiler will now call the function
               PT:parse_transform_info/0 in parse transforms (if it
               exists). It can be used by parse transforms to signal
               that they can only handle line numbers in abstract
               code.


  OTP-16867    Application(s): compiler
               Related Id(s): ERL-1354

               Fixed a performance bug that made functions with lots
               of try/after blocks slow to compile.


  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


  OTP-16964    Application(s): compiler

               *** HIGHLIGHT ***

               Generators in list and binary comprehensions will now
               raise a {bad_generator,Generator} exception if the
               generator has an incorrect type (instead of raising an
               ad-hoc badarg or badarih exception). Similarly, when a
               filter does not evaluate to a boolean, a
               {bad_filter,Filter} exception will be raised. Some
               minor bugs in the compilation of binary comprehensions
               have also been fixed.


  OTP-16981    Application(s): compiler
               Related Id(s): ERL-1113

               *** HIGHLIGHT ***

               Some compiler warnings, such as the warning for an
               expression whose result is ignored, could not be
               suppressed by assigning to a variable beginning with
               '_', but only by assigning to the anonymous variable
               ('_'). This has now been changed so that any warning
               that can be suppressed by assigning to the anonymous
               variable can also be suppressed by assigning to a
               variable beginning with '_'.


  OTP-17078    Application(s): compiler
               Related Id(s): ERL-1430, PR-2918

               The previously undocumented compiler options
               warn_missing_spec and warn_missing_spec_all are now
               documented.


  OTP-17123    Application(s): asn1, compiler, et, xmerl

               The compiler will now emit warnings when (previously
               bound) underscore-prefixed variables are matched.


  OTP-17168    Application(s): compiler

               Erlang source files not encoded in utf-8 will no longer
               be accepted by the compiler unless it contains a
               "coding: latin-1" comment.


  OTP-17172    Application(s): compiler

               New compiler options from_abstr and no_lint have been
               added. They are useful when implementing other
               languages running on the BEAM.


  OTP-17207    Application(s): compiler, erts

               The bit matching and construction syntax now supports
               16-bit floats (IEEE 754-2008).


 Full runtime dependencies of compiler-8.0: crypto-3.6, erts-11.0,
 kernel-7.0, stdlib-3.13


 ---------------------------------------------------------------------
 --- crypto-5.0 ------------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-16882    Application(s): crypto

               Add /usr/local/opt/openssl to the openssl configure
               search path. This path is where some tools on OS X
               place openssl.


  OTP-17105    Application(s): crypto, erts, odbc, wx
               Related Id(s): PR-2872

               Fix compiler warnings produced by the clang compiler.


 --- Improvements and New Features ---

  OTP-16656    Application(s): crypto

               *** POTENTIAL INCOMPATIBILITY ***

               The functions and cipher names that were deprecated in
               OTP-23.0 are now removed.


  OTP-17001    Application(s): crypto
               Related Id(s): PR-2852

               Removed installed directory priv/obj/ containing
               superfluous object files.


 Full runtime dependencies of crypto-5.0: erts-9.0, kernel-5.3,
 stdlib-3.4


 ---------------------------------------------------------------------
 --- debugger-5.1 ----------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16686    Application(s): debugger, erts, kernel, stdlib

               *** HIGHLIGHT ***

               Extended error information for failing BIF calls as
               proposed in EEP 54 has been implemented.

               When a BIF call from the Erlang shell fails, more
               information about which argument or arguments that were
               in error will be printed. The same extended error
               information will by proc_lib, common_test, and qlc when
               BIF calls fail.

               For applications that wish to provide the same extended
               error information, there are new functions
               erl_error:format_exception/3 and
               erl_error:format_exception/4.

               There is a new error/3 BIF that allows applications or
               libraries to provide extended error information in the
               same way for their own exceptions.


 Full runtime dependencies of debugger-5.1: compiler-5.0, erts-9.0,
 kernel-5.3, stdlib-3.4, wx-1.2


 ---------------------------------------------------------------------
 --- dialyzer-4.4 ----------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16883    Application(s): dialyzer

               Some internal HiPE modules have been moved into the
               dialyzer application so that dialyzer works when HiPE
               is disabled.


  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


  OTP-16986    Application(s): dialyzer
               Related Id(s): ERL-1379, ERL-1480, GH-4033

               Add warning option no_underspecs.


  OTP-16995    Application(s): dialyzer
               Related Id(s): ERL-1348

               Report filename and location for warnings returned due
               to the -Wunknown option. When used from the
               command-line, one location per file is printed.


  OTP-17084    Application(s): dialyzer

               Add types and specifications for documentation.


  OTP-17177    Application(s): dialyzer
               Related Id(s): OTP-16824

               Add option error_location. The option is recognized if
               included in the environment variable
               ERL_COMPILER_OPTIONS.


  OTP-17183    Application(s): dialyzer
               Related Id(s): ERL-892, GH-4493

               Clarify how to declare records used in match patterns.


 Full runtime dependencies of dialyzer-4.4: compiler-7.0, erts-9.0,
 kernel-5.3, stdlib-3.4, syntax_tools-2.0, wx-1.2


 ---------------------------------------------------------------------
 --- edoc-1.0 --------------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-17092    Application(s): edoc

               Fix so that the edoc_doclet option file_suffix also
               effects the links emitted into the module index.


 --- Improvements and New Features ---

  OTP-16949    Application(s): edoc
               Related Id(s): OTP-17192, PR-2803

               *** HIGHLIGHT ***

               *** POTENTIAL INCOMPATIBILITY ***

               EDoc, the Erlang documentation engine, hits version 1.0
               with this release, which means a few changes.

               EDoc is now capable of emitting EEP-48 doc chunks. This
               means that, with some configuration, community projects
               can now provide documentation for shell_docs the same
               way that OTP libraries did since OTP 23.0.

               The @spec and @type EDoc tags have been deprecated.
               These are not supported with the new chunk-generating
               doclet and layout. Moreover, previously when there was
               a redundant @spec tag and -spec attribute defined for
               the same function, the @spec tag would take precedence.
               Now, the -spec attribute takes precedence and is more
               important. The same is true for redundant @type tags
               and -type attributes. Warnings are now emitted when
               such redundant entries are found.

               See the Doc chunks chapter in the Edoc User's Guide for
               more details.


  OTP-17095    Application(s): edoc
               Related Id(s): PR-2914

               Edoc has been updated to use -spec to document its own
               interface instead of @doc@ tags.

               Together with this change the inter-application linking
               for -spec style documentation has been improved.


  OTP-17153    Application(s): edoc
               Related Id(s): PR-2674

               Allow user defined edoc macros to be functions.


 Full runtime dependencies of edoc-1.0: erts-6.0, inets-5.10,
 kernel-3.0, stdlib-3.15, syntax_tools-1.6.14, xmerl-1.3.7


 ---------------------------------------------------------------------
 --- eldap-1.2.9 -----------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-17166    Application(s): eldap
               Related Id(s): PR-2904

               Add ability to specify size limit on ldap requests


 Full runtime dependencies of eldap-1.2.9: asn1-3.0, erts-6.0,
 kernel-3.0, ssl-5.3.4, stdlib-2.0


 ---------------------------------------------------------------------
 --- erl_docgen-1.1 --------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-17122    Application(s): erl_docgen, stdlib

               Fixed bug in shell_docs and erl_docgen that interpreted
               em tags as strong.


 --- Improvements and New Features ---

  OTP-16877    Application(s): erl_docgen

               Add support for displaying .svg images.


  OTP-17192    Application(s): erl_docgen
               Related Id(s): PR-2803

               Updated the way specs are generated after changes in
               edoc.


 Full runtime dependencies of erl_docgen-1.1: edoc-1.0, erts-9.0,
 stdlib-3.15, xmerl-1.3.7


 ---------------------------------------------------------------------
 --- erl_interface-5.0 -----------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16720    Application(s): erl_interface, erts, jinterface
               Related Id(s): PR-2680

               Accept 64-bit process identifiers from external nodes.
               This is the first step in an upgrade path toward using
               64-bit pids in a future OTP release.


  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


  OTP-16970    Application(s): erl_interface

               *** POTENTIAL INCOMPATIBILITY ***

               The registry functionality part of erl_interface has
               been removed. It was as of OTP 23 deprecated and
               scheduled for removal in OTP 24.


  OTP-17005    Application(s): erl_interface, erts, jinterface,
               kernel, stdlib
               Related Id(s): OTP-16718

               Accept references up to a size of 160-bits from remote
               nodes. This is the first step in an upgrade path toward
               using references up to 160-bits in a future OTP
               release.


  OTP-17007    Application(s): erl_interface, erts, jinterface

               Accept 64-bit port identifiers from external nodes.
               This is the first step in an upgrade path toward using
               64-bit port identifiers in a future OTP release.


 --- Known Bugs and Problems ---

  OTP-16607    Application(s): erl_interface
               Related Id(s): OTP-16608

               The ei API for decoding/encoding terms is not fully
               64-bit compatible since terms that have a
               representation on the external term format larger than
               2 GB cannot be handled.


 ---------------------------------------------------------------------
 --- erts-12.0 -------------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-16822    Application(s): erts
               Related Id(s): PR-2723

               file:open/2 now throws an badarg error when opened with
               both the ram and raw options.


  OTP-16879    Application(s): erts

               The estone benchmark has been updated to better reflect
               changes in the compiler and run-time system.


  OTP-16880    Application(s): erts

               Fix profile guided optimization of run-time system when
               using GCC 7 or later.


  OTP-16884    Application(s): erts

               Fix double close of fd when creating crash dump.


  OTP-17014    Application(s): erts

               Improve erl error message when unable to open included
               args_file.


  OTP-17020    Application(s): erts

               Remove warning text about the -- operation from
               documentation

               The -- operation was optimized in Erlang/OTP 22 so that
               its worst case complexity is O(N*log(N)), where N is
               the total size of the input lists. Therefore, the
               warning in the documentation saying that the time
               complexity is proportional to length(A)*length(B) is
               incorrect and is no longer needed. Notice that
               Erlang/OTP 21 will no longer be supported when
               Erlang/OTP 24 gets released.


  OTP-17077    Application(s): compiler, erts, stdlib
               Related Id(s): ERL-1431, PR-2903, PR-2905, PR-2906

               A floating point zero (0.0) can be both positive (+0.0)
               and negative (-0.0). Multiple bugs in the compiler,
               runtime system, and STDLIB have been fixed to ensure
               that the minus sign on 0.0 is not lost.


  OTP-17105    Application(s): crypto, erts, odbc, wx
               Related Id(s): PR-2872

               Fix compiler warnings produced by the clang compiler.


  OTP-17131    Application(s): erts
               Related Id(s): GH-4360, PR-3031

               Windows process erl.exe killed if its service process
               erlsrv.exe terminates.


 --- Improvements and New Features ---

  OTP-14601    Application(s): erts, kernel
               Related Id(s): OTP-16749, PR-2641, PR-2670

               The experimental socket module can now use any protocol
               (by name) the OS supports. Suggested in PR-2641,
               implemented in PR-2670.


  OTP-16653    Application(s): erts

               The deprecated function erlang:get_stacktrace/0 has
               been removed. Use the new syntax in try/catch to
               retrieve the stack backtrace.


  OTP-16678    Application(s): erts, stdlib, syntax_tools, tools
               Related Id(s): PR-2627

               Support for handling abstract code created before OTP
               R15 has been dropped.


  OTP-16686    Application(s): debugger, erts, kernel, stdlib

               *** HIGHLIGHT ***

               Extended error information for failing BIF calls as
               proposed in EEP 54 has been implemented.

               When a BIF call from the Erlang shell fails, more
               information about which argument or arguments that were
               in error will be printed. The same extended error
               information will by proc_lib, common_test, and qlc when
               BIF calls fail.

               For applications that wish to provide the same extended
               error information, there are new functions
               erl_error:format_exception/3 and
               erl_error:format_exception/4.

               There is a new error/3 BIF that allows applications or
               libraries to provide extended error information in the
               same way for their own exceptions.


  OTP-16687    Application(s): erts
               Related Id(s): PR-2762, PR-2996

               The erlang module documentation has been updated to
               improve clarity and description of edge cases.


  OTP-16703    Application(s): erts, kernel
               Related Id(s): PR-2620

               An example implementation of Erlang distribution over
               UDS using distribution processes has been introduced.

               Thanks to Jérôme de Bretagne


  OTP-16712    Application(s): erts

               Improve code generation when creating funs by adding a
               new beam instruction make_fun3 that does not do GC and
               allows for better register allocation.


  OTP-16718    Application(s): erts, kernel, stdlib
               Related Id(s): PR-2735

               *** HIGHLIGHT ***

               Process aliases as outlined by EEP 53 has been
               introduced. Process aliases is introduced in order to
               provide a lightweight mechanism that can prevent late
               replies after timeout or connection loss. For more
               information, see EEP 53 and the documentation of the
               new alias/1 BIF and the new options to the monitor/3
               BIF.

               The call operation in the framework used by gen_server,
               gen_statem, and gen_event has been updated to utilize
               alias in order to prevent late responses. The
               gen_statem behavior still use a proxy process in the
               distributed case, since it has always prevented late
               replies and aliases wont work against pre OTP 24 nodes.
               The proxy process can be removed in OTP 26.

               The alias feature also made it possible to introduce
               new functions similar to the erpc:receive_response()
               function in the gen behaviors, so the new functions
               gen_server:receive_response(),
               gen_statem:receive_response(),
               gen_event:receive_response() have also been introduced.


  OTP-16720    Application(s): erl_interface, erts, jinterface
               Related Id(s): PR-2680

               Accept 64-bit process identifiers from external nodes.
               This is the first step in an upgrade path toward using
               64-bit pids in a future OTP release.


  OTP-16749    Application(s): erts, kernel
               Related Id(s): OTP-14601

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental new socket API has been further
               developed. Some backwards incompatible changes with
               respect to OTP 23 have been made.

               The control message format has been changed so a
               decoded value is now in the 'value' field instead of in
               the 'data' field. The 'data' field now always contains
               binary data.

               Some type names have been changed regarding message
               headers and control message headers.

               socket:bind/2 now returns plain ok instead of {ok,
               Port} which was only relevant for the inet and inet6
               address families and often not interesting. To find out
               which port was chosen use socket:sockname/1.


  OTP-16788    Application(s): erts

               Remove old unused +MYm and ERL_MALLOC_LIB options.


  OTP-16814    Application(s): erts
               Related Id(s): PR-2704

               Increase timer resolution on windows.


  OTP-16878    Application(s): erts

               *** POTENTIAL INCOMPATIBILITY ***

               The code loader has been rewritten in order to be able
               to load JIT:ed code. As a consequence of this, it is no
               longer possible to load HiPE code.


  OTP-16881    Application(s): erts

               Add support in the Erlang/OTP build system to generate
               a compilation database that can be used by third-party
               tools (such as irony in Emacs) to compile the erts C
               and C++ source code. Create the database using make
               compdb.


  OTP-16885    Application(s): erts
               Related Id(s): PR-2745

               *** HIGHLIGHT ***

               The BeamAsm JIT-compiler has been added to Erlang/OTP.
               The JIT-compiler is enabled by default on most x86
               64-bit platforms that have a C++ compiler that can
               compile C++17. To verify that a JIT enabled emulator is
               running you can use erlang:system_info(emu_flavor).

               For more information see the internal documentation of
               BeamAsm in erts.


  OTP-16898    Application(s): erts
               Related Id(s): OTP-16856

               By default all ERTS internal memory allocators based on
               alloc_util will now use their own separate carrier pool
               for migration of carriers instead of using a node
               global carrier pool. This was the default behavior
               between OTP 17 and OTP 21, but changed to use a node
               global carrier pool as of OTP 22.0. Usage of the node
               global carrier pool proved troublesome since it had a
               tendency to spread long lived blocks into allocators
               with normally short lived blocks causing increased
               memory fragmentation. The node global carrier pool
               behavior as well as other behaviors can be configured
               using the +M<S>cp command line argument.


  OTP-16936    Application(s): erts, stdlib
               Related Id(s): ERL-1367

               New functions have been added to the maps module:
               merge_with/3, intersect/2, intersect_with/3,
               filtermap/2, from_keys/2, and maps:foreach/2.

               maps:merge_with/3 is the same as merge/2 but takes an
               extra fun that is used to combine items with the same
               key.

               maps:intersect/2 computes the intersection of two maps.

               maps:intersect_with/3 is the same as intersect/2 but
               takes an extra fun that is used to combine intersecting
               items.

               maps:filtermap/2 allows filtering and mapping of a map
               in a single pass.

               maps:from_keys/2 constructs a map from a list of keys
               and a single value and can be used to to optimize sets
               operations such as from_list/1, filter/2,
               intersection/2, and subtract/2.

               maps:foreach/2 allows iteration over a map without
               returning any value.


  OTP-16945    Application(s): erts

               *** POTENTIAL INCOMPATIBILITY ***

               Change escripts to output any errors or warnings to
               standard error instead of standard out.


  OTP-16952    Application(s): erts, kernel

               A new erl parameter for specifying a file descriptor
               with configuration data has been added. This makes it
               possible to pass the parameter "-configfd FD" when
               executing the erl command. When this option is given,
               the system will try to read and parse configuration
               parameters from the file descriptor.


  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


  OTP-16980    Application(s): erts, stdlib
               Related Id(s): ERL-1308

               The pretty printer for floating point number have been
               changed to make it easier to see if the integer part of
               the number has been rounded. After the change the the
               digit that may have been rounded always appears last or
               just before the exponent character (e or E). This is
               accomplished by always printing the number using
               scientific notation if it is so large that the integer
               part could be rounded.


  OTP-16987    Application(s): erts

               *** POTENTIAL INCOMPATIBILITY ***

               The erlang:monitor_node/2 BIF will now fail with a
               notalive exception if distribution has not been started
               on the current node; it used to fail with a badarg
               exception.


  OTP-17005    Application(s): erl_interface, erts, jinterface,
               kernel, stdlib
               Related Id(s): OTP-16718

               Accept references up to a size of 160-bits from remote
               nodes. This is the first step in an upgrade path toward
               using references up to 160-bits in a future OTP
               release.


  OTP-17007    Application(s): erl_interface, erts, jinterface

               Accept 64-bit port identifiers from external nodes.
               This is the first step in an upgrade path toward using
               64-bit port identifiers in a future OTP release.


  OTP-17028    Application(s): erts

               One can now pass the ERL_ROOTDIR environment variable
               to the erl and start scrips. This makes it easier to
               use Erlang for Android apps. On Andorid, apps don't
               control where they will be installed.


  OTP-17057    Application(s): erts, stdlib

               All long running functions in the maps API are now
               yielding. In previous releases the functions
               maps:from_list/1, maps:keys/1 and maps:values/1 did not
               yield. This could cause unfair scheduling of processes.


  OTP-17207    Application(s): compiler, erts

               The bit matching and construction syntax now supports
               16-bit floats (IEEE 754-2008).


 Full runtime dependencies of erts-12.0: kernel-8.0, sasl-3.3,
 stdlib-3.13


 ---------------------------------------------------------------------
 --- et-1.7 ----------------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-17123    Application(s): asn1, compiler, et, xmerl

               The compiler will now emit warnings when (previously
               bound) underscore-prefixed variables are matched.


 Full runtime dependencies of et-1.7: erts-9.0, kernel-5.3,
 runtime_tools-1.10, stdlib-3.4, wx-1.2


 ---------------------------------------------------------------------
 --- ftp-1.1 ---------------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-16926    Application(s): ftp
               Related Id(s): ERL-1450, GH-4473

               Use OTP supervisor as intended, avoiding surprising
               behavior as the killing of the user's process. Also,
               FTP state handling logic is improved to avoid race
               conditions that could result in unexpected errors.


 --- Improvements and New Features ---

  OTP-15523    Application(s): ftp
               Related Id(s): OTP-15352, PR-1968

               *** HIGHLIGHT ***

               Add support for FTPES (explicit FTP over TLS).


 Full runtime dependencies of ftp-1.1: erts-7.0, kernel-6.0,
 stdlib-3.5


 ---------------------------------------------------------------------
 --- inets-7.4 -------------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16722    Application(s): inets

               Drop all support for ftp and tftp in inets code.


  OTP-16723    Application(s): inets

               Deprecate following functions in httpd_util module:
               flatlength/1, lhexlist_to_integer/1,
               integer_to_hexlist/1, strip/1, and suffix/1.


  OTP-16724    Application(s): inets

               Remove support of HTTP 0.9 in httpd.


  OTP-16725    Application(s): inets

               Remove support of HTTP 0.9 in httpc.


 Full runtime dependencies of inets-7.4: erts-6.0, kernel-3.0,
 mnesia-4.12, runtime_tools-1.8.14, ssl-5.3.4, stdlib-3.5


 ---------------------------------------------------------------------
 --- jinterface-1.12 -------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16720    Application(s): erl_interface, erts, jinterface
               Related Id(s): PR-2680

               Accept 64-bit process identifiers from external nodes.
               This is the first step in an upgrade path toward using
               64-bit pids in a future OTP release.


  OTP-17005    Application(s): erl_interface, erts, jinterface,
               kernel, stdlib
               Related Id(s): OTP-16718

               Accept references up to a size of 160-bits from remote
               nodes. This is the first step in an upgrade path toward
               using references up to 160-bits in a future OTP
               release.


  OTP-17007    Application(s): erl_interface, erts, jinterface

               Accept 64-bit port identifiers from external nodes.
               This is the first step in an upgrade path toward using
               64-bit port identifiers in a future OTP release.


  OTP-17170    Application(s): jinterface
               Related Id(s): PR-3005

               Make OtpErlangExternalFun's fields module, function and
               arity public.


 ---------------------------------------------------------------------
 --- kernel-8.0 ------------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-14700    Application(s): kernel
               Related Id(s): PR-2848

               A bug has been fixed for the internal inet_res resolver
               cache that handled a resolver configuration file status
               timer incorrectly and caused performance problems due
               to many unnecessary file system accesses.


  OTP-16809    Application(s): kernel
               Related Id(s): ERL-1313

               *** POTENTIAL INCOMPATIBILITY ***

               Change the value of the tag head returned by
               disk_log:info/1 from {ok, Head} to just Head.


 --- Improvements and New Features ---

  OTP-13126    Application(s): kernel
               Related Id(s): PR-3041

               The cache used by the DNS resolver inet_res has been
               improved to use ETS lookups instead of server calls.
               This is a considerable speed improvement for cache
               hits.


  OTP-14485    Application(s): kernel
               Related Id(s): PR-2891

               The cache ETS table type for the internal DNS resolver
               inet_res has been changed type changed (internally) to
               get better speed and atomicity.


  OTP-14601    Application(s): erts, kernel
               Related Id(s): OTP-16749, PR-2641, PR-2670

               The experimental socket module can now use any protocol
               (by name) the OS supports. Suggested in PR-2641,
               implemented in PR-2670.


  OTP-16517    Application(s): kernel
               Related Id(s): PR-2827

               The DNS resolver inet_res has been updated to support
               CAA (RFC 6844) and URI (RFC 7553) records.


  OTP-16611    Application(s): kernel
               Related Id(s): OTP-16749

               *** HIGHLIGHT ***

               A compatibility adaptor for gen_tcp to use the new
               socket API has been implemented (gen_tcp_socket). Used
               when setting the kernel application variable
               inet_backend = socket.


  OTP-16686    Application(s): debugger, erts, kernel, stdlib

               *** HIGHLIGHT ***

               Extended error information for failing BIF calls as
               proposed in EEP 54 has been implemented.

               When a BIF call from the Erlang shell fails, more
               information about which argument or arguments that were
               in error will be printed. The same extended error
               information will by proc_lib, common_test, and qlc when
               BIF calls fail.

               For applications that wish to provide the same extended
               error information, there are new functions
               erl_error:format_exception/3 and
               erl_error:format_exception/4.

               There is a new error/3 BIF that allows applications or
               libraries to provide extended error information in the
               same way for their own exceptions.


  OTP-16698    Application(s): kernel
               Related Id(s): PR-2634

               The file server can now be bypassed in file:delete/1,2
               with the raw option.


  OTP-16703    Application(s): erts, kernel
               Related Id(s): PR-2620

               An example implementation of Erlang distribution over
               UDS using distribution processes has been introduced.

               Thanks to Jérôme de Bretagne


  OTP-16718    Application(s): erts, kernel, stdlib
               Related Id(s): PR-2735

               *** HIGHLIGHT ***

               Process aliases as outlined by EEP 53 has been
               introduced. Process aliases is introduced in order to
               provide a lightweight mechanism that can prevent late
               replies after timeout or connection loss. For more
               information, see EEP 53 and the documentation of the
               new alias/1 BIF and the new options to the monitor/3
               BIF.

               The call operation in the framework used by gen_server,
               gen_statem, and gen_event has been updated to utilize
               alias in order to prevent late responses. The
               gen_statem behavior still use a proxy process in the
               distributed case, since it has always prevented late
               replies and aliases wont work against pre OTP 24 nodes.
               The proxy process can be removed in OTP 26.

               The alias feature also made it possible to introduce
               new functions similar to the erpc:receive_response()
               function in the gen behaviors, so the new functions
               gen_server:receive_response(),
               gen_statem:receive_response(),
               gen_event:receive_response() have also been introduced.


  OTP-16749    Application(s): erts, kernel
               Related Id(s): OTP-14601

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental new socket API has been further
               developed. Some backwards incompatible changes with
               respect to OTP 23 have been made.

               The control message format has been changed so a
               decoded value is now in the 'value' field instead of in
               the 'data' field. The 'data' field now always contains
               binary data.

               Some type names have been changed regarding message
               headers and control message headers.

               socket:bind/2 now returns plain ok instead of {ok,
               Port} which was only relevant for the inet and inet6
               address families and often not interesting. To find out
               which port was chosen use socket:sockname/1.


  OTP-16793    Application(s): kernel
               Related Id(s): ERL-1332, PR-2740

               New function os:env/0 returns all OS environment
               variables as a list of 2-tuples.


  OTP-16811    Application(s): kernel

               *** POTENTIAL INCOMPATIBILITY ***

               Remove the support for distributed disk logs. The new
               function disk_log:all/0 is to be used instead of
               disk_log:accessible_logs/0. The function
               disk_log:close/1 is to be used instead of
               disk_log:lclose/1,2.


  OTP-16947    Application(s): kernel
               Related Id(s): PR-2781

               Expand the spec for erl_epmd:listen_port_please/2 to
               mirror erl_epmd:port_please/2.


  OTP-16952    Application(s): erts, kernel

               A new erl parameter for specifying a file descriptor
               with configuration data has been added. This makes it
               possible to pass the parameter "-configfd FD" when
               executing the erl command. When this option is given,
               the system will try to read and parse configuration
               parameters from the file descriptor.


  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


  OTP-16968    Application(s): kernel

               *** POTENTIAL INCOMPATIBILITY ***

               The pg2 module has been removed.


  OTP-17005    Application(s): erl_interface, erts, jinterface,
               kernel, stdlib
               Related Id(s): OTP-16718

               Accept references up to a size of 160-bits from remote
               nodes. This is the first step in an upgrade path toward
               using references up to 160-bits in a future OTP
               release.


  OTP-17015    Application(s): kernel

               Allow utf-8 binaries as parts of logger_formatter
               template.


  OTP-17103    Application(s): kernel
               Related Id(s): PR-2949

               Allow the shell history of an erlang node to be fetched
               and stores using a custom callback module. See
               shell_history configuration parameter in the kernel
               documentation for more details.


  OTP-17106    Application(s): kernel
               Related Id(s): PR-2885

               The simple logger (used to log events that happen
               before kernel has been started) has been improved to
               print prettier error messages.


  OTP-17156    Application(s): kernel

               *** POTENTIAL INCOMPATIBILITY ***

               Fix various issues with the gen_tcp_socket. Including
               documenting some incompatibilities.


  OTP-17181    Application(s): kernel
               Related Id(s): PR-2457

               Added support in logger for setting primary metadata.
               The primary metadata is passed as a base metadata to
               all log events in the system. See Metadata in the
               Logger chapter of the Kernel User's Guide for more
               details.


  OTP-17189    Application(s): kernel, reltool, sasl
               Related Id(s): PR-2675

               Recognize new key 'optional_applications' in
               application resource files.


  OTP-17198    Application(s): kernel
               Related Id(s): PR-2721

               The Fun's passed to logger:log/2,3,4 can now return
               metadata that will only be fetched when needed. See
               logger:log/2,3,4 for more details.


  OTP-17201    Application(s): kernel
               Related Id(s): PR-4534

               erpc:multicall() has been rewritten to be able to
               utilize the newly introduced and improved
               reference/receive optimization.


  OTP-17216    Application(s): kernel
               Related Id(s): PR-2989

               *** POTENTIAL INCOMPATIBILITY ***

               The behaviour for gen_tcp:connect/3,4 has been changed
               to not per default bind to an address, which allows the
               network stack to delay the address and port selection
               to when the remote address is known. This allows better
               port re-use, and thus enables far more outgoing
               connections, since the ephemeral port range no longer
               has to be a hard limit.

               There is a theoretical possibility that this behaviour
               change can affect the set of possible error values, or
               have other small implications on some platforms.


 Full runtime dependencies of kernel-8.0: erts-12.0, sasl-3.0,
 stdlib-3.13


 ---------------------------------------------------------------------
 --- megaco-4.0 ------------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16560    Application(s): megaco

               *** POTENTIAL INCOMPATIBILITY ***

               All the pre-v3 codec(s) (prev3a, prev3b and prev3c) was
               deprecated in OTP-23.0. They have now been removed.


  OTP-17049    Application(s): megaco, snmp

               Removed deprecated functions marked for removal.


 Full runtime dependencies of megaco-4.0: asn1-3.0, debugger-4.0,
 erts-7.0, et-1.5, kernel-3.0, runtime_tools-1.8.14, stdlib-2.5


 ---------------------------------------------------------------------
 --- mnesia-4.18.2 ---------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-17217    Application(s): mnesia

               Suppression of deprecation warnings has been added to
               the source files of the Mnesia application.


 Full runtime dependencies of mnesia-4.18.2: erts-9.0, kernel-5.3,
 stdlib-3.4


 ---------------------------------------------------------------------
 --- observer-2.9.6 --------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-17214    Application(s): observer

               Updated gui parts to work with the new wx version.


 Full runtime dependencies of observer-2.9.6: erts-11.0, et-1.5,
 kernel-7.0, runtime_tools-1.8.14, stdlib-3.13, wx-1.2


 ---------------------------------------------------------------------
 --- odbc-2.13.3 -----------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-17105    Application(s): crypto, erts, odbc, wx
               Related Id(s): PR-2872

               Fix compiler warnings produced by the clang compiler.


 Full runtime dependencies of odbc-2.13.3: erts-6.0, kernel-3.0,
 stdlib-2.0


 ---------------------------------------------------------------------
 --- os_mon-2.7 ------------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16943    Application(s): os_mon
               Related Id(s): OTP-16906

               *** POTENTIAL INCOMPATIBILITY ***

               The temporarily introduced configuration parameter
               memsup_improved_system_memory_data has been removed.


  OTP-16944    Application(s): os_mon
               Related Id(s): PR-2787

               Fix disk_sup to also search the system PATH on linux
               when looking for the df program.


 Full runtime dependencies of os_mon-2.7: erts-6.0, kernel-3.0,
 sasl-2.4, stdlib-2.0


 ---------------------------------------------------------------------
 --- parsetools-2.3 --------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16957    Application(s): parsetools, tools

               Add types and specifications for documentation.


  OTP-17023    Application(s): parsetools

               Let Leex and Yecc recognize the environment variable
               ERL_COMPILER_OPTIONS. Add Yecc option {error_location,
               column | line}.


 Full runtime dependencies of parsetools-2.3: erts-6.0, kernel-3.0,
 stdlib-2.5


 ---------------------------------------------------------------------
 --- reltool-0.9 -----------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-17189    Application(s): kernel, reltool, sasl
               Related Id(s): PR-2675

               Recognize new key 'optional_applications' in
               application resource files.


 Full runtime dependencies of reltool-0.9: erts-7.0, kernel-3.0,
 sasl-2.4, stdlib-3.4, tools-2.6.14, wx-1.2


 ---------------------------------------------------------------------
 --- runtime_tools-1.15.2 --------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


 Full runtime dependencies of runtime_tools-1.15.2: erts-11.0,
 kernel-7.0, mnesia-4.12, stdlib-3.13


 ---------------------------------------------------------------------
 --- sasl-4.1 --------------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


  OTP-17189    Application(s): kernel, reltool, sasl
               Related Id(s): PR-2675

               Recognize new key 'optional_applications' in
               application resource files.


 Full runtime dependencies of sasl-4.1: erts-10.2, kernel-5.3,
 stdlib-3.4, tools-2.6.14


 ---------------------------------------------------------------------
 --- snmp-5.7.4 ------------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-17049    Application(s): megaco, snmp

               Removed deprecated functions marked for removal.


 Full runtime dependencies of snmp-5.7.4: crypto-3.3, erts-6.0,
 kernel-3.0, mnesia-4.12, runtime_tools-1.8.14, stdlib-2.5


 ---------------------------------------------------------------------
 --- ssh-4.11 --------------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16750    Application(s): ssh

               Removed usage of erlang:is_port/1 from the SSH
               implementation.


  OTP-17051    Application(s): ssh

               Internal connection setup refactoring.


  OTP-17140    Application(s): ssh

               Refactor SSH fsm into a (hopefully) more comprehensible
               set of gen_statem callback-files.


 Full runtime dependencies of ssh-4.11: crypto-4.6.4, erts-9.0,
 kernel-5.3, public_key-1.6.1, stdlib-3.4.1


 ---------------------------------------------------------------------
 --- ssl-10.3 --------------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16974    Application(s): ssl

               *** POTENTIAL INCOMPATIBILITY ***

               Removed ssl:ssl_accept/1,2,3 and ssl:cipher:suites/0,1
               use ssl:handshake/1,2,3 and ssl:cipher_suites/2,3
               instead.


  OTP-17044    Application(s): ssl
               Related Id(s): PR-2654

               *** HIGHLIGHT ***

               Make TLS handshakes in Erlang distribution concurrent.


  OTP-17117    Application(s): ssl
               Related Id(s): PR-2933

               Randomize internal {active,n} optimization when running
               Erlang distribution over TLS to spread RAM/CPU spike
               that may occur when starting up a big cluster.


 Full runtime dependencies of ssl-10.3: crypto-4.2, erts-10.0,
 inets-5.10.7, kernel-6.0, public_key-1.8, stdlib-3.12


 ---------------------------------------------------------------------
 --- stdlib-3.15 -----------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-15107    Application(s): stdlib
               Related Id(s): ERL-1381, PR-2813

               *** POTENTIAL INCOMPATIBILITY ***

               Time-outs in gen_statem with relative time 0 did not
               behave quite according to the intended model. This has
               now been corrected.

               The correction introduces a small potential
               incompatibility e.g when combining a state time-out
               with inserted events, and the inserted event does a
               state change in the state with the time-out. Before
               this correction the state time-out could be delivered
               even after the second state change, but now it is
               guaranteed that a state time-out is only delivered in
               the state it was started for, even in this corner case.


  OTP-16865    Application(s): stdlib

               Fix bugs in erl_eval concerning bitstring
               comprehensions.


  OTP-16905    Application(s): stdlib

               File names that start with a dot (such as ".gitignore"
               are now treated as file names and not extensions by
               filename:extension/1 and filename:rootname/1.


  OTP-16950    Application(s): stdlib
               Related Id(s): ERL-1378

               Fixed a bug where beam_lib:chunks/3 with the
               allow_missing_chunks option would crash if a named
               chunk was missing.


  OTP-17077    Application(s): compiler, erts, stdlib
               Related Id(s): ERL-1431, PR-2903, PR-2905, PR-2906

               A floating point zero (0.0) can be both positive (+0.0)
               and negative (-0.0). Multiple bugs in the compiler,
               runtime system, and STDLIB have been fixed to ensure
               that the minus sign on 0.0 is not lost.


  OTP-17118    Application(s): compiler, stdlib
               Related Id(s): PR-2825

               Eliminated a Dialyzer crashed when the -MMD option is
               used to generate a dependency file and a BEAM file a
               the same time.


  OTP-17122    Application(s): erl_docgen, stdlib

               Fixed bug in shell_docs and erl_docgen that interpreted
               em tags as strong.


  OTP-17133    Application(s): stdlib

               On Solaris, the math:acos/1 and math:asin/1 functions
               would not fail for arguments outside the valid domain.


 --- Improvements and New Features ---

  OTP-14646    Application(s): stdlib
               Related Id(s): PR-2920

               In the rand module it is now possible to seed the
               default algorithm using an algorithm alias: default.

               Generating pseudo random binaries has been implemented
               with rand:bytes/1 and rand:bytes_s/2.


  OTP-14647    Application(s): stdlib
               Related Id(s): PR-2910

               New functions have been added to the proplists module:
               to_map/1,2 and from_map/1.


  OTP-14650    Application(s): stdlib
               Related Id(s): PR-2850

               New functions have been added to the queue module:
               all/2, any/2, delete/2, delete_r/2, delete_with/2, and
               delete_with_r/2.


  OTP-14793    Application(s): stdlib
               Related Id(s): PR-2791

               New function have been added to the queue module:
               fold/2 and filtermap/2.


  OTP-16678    Application(s): erts, stdlib, syntax_tools, tools
               Related Id(s): PR-2627

               Support for handling abstract code created before OTP
               R15 has been dropped.


  OTP-16686    Application(s): debugger, erts, kernel, stdlib

               *** HIGHLIGHT ***

               Extended error information for failing BIF calls as
               proposed in EEP 54 has been implemented.

               When a BIF call from the Erlang shell fails, more
               information about which argument or arguments that were
               in error will be printed. The same extended error
               information will by proc_lib, common_test, and qlc when
               BIF calls fail.

               For applications that wish to provide the same extended
               error information, there are new functions
               erl_error:format_exception/3 and
               erl_error:format_exception/4.

               There is a new error/3 BIF that allows applications or
               libraries to provide extended error information in the
               same way for their own exceptions.


  OTP-16718    Application(s): erts, kernel, stdlib
               Related Id(s): PR-2735

               *** HIGHLIGHT ***

               Process aliases as outlined by EEP 53 has been
               introduced. Process aliases is introduced in order to
               provide a lightweight mechanism that can prevent late
               replies after timeout or connection loss. For more
               information, see EEP 53 and the documentation of the
               new alias/1 BIF and the new options to the monitor/3
               BIF.

               The call operation in the framework used by gen_server,
               gen_statem, and gen_event has been updated to utilize
               alias in order to prevent late responses. The
               gen_statem behavior still use a proxy process in the
               distributed case, since it has always prevented late
               replies and aliases wont work against pre OTP 24 nodes.
               The proxy process can be removed in OTP 26.

               The alias feature also made it possible to introduce
               new functions similar to the erpc:receive_response()
               function in the gen behaviors, so the new functions
               gen_server:receive_response(),
               gen_statem:receive_response(),
               gen_event:receive_response() have also been introduced.


  OTP-16910    Application(s): stdlib
               Related Id(s): PR-2771

               Improved documentation about exit signals emitted when
               a gen_server terminates.


  OTP-16936    Application(s): erts, stdlib
               Related Id(s): ERL-1367

               New functions have been added to the maps module:
               merge_with/3, intersect/2, intersect_with/3,
               filtermap/2, from_keys/2, and maps:foreach/2.

               maps:merge_with/3 is the same as merge/2 but takes an
               extra fun that is used to combine items with the same
               key.

               maps:intersect/2 computes the intersection of two maps.

               maps:intersect_with/3 is the same as intersect/2 but
               takes an extra fun that is used to combine intersecting
               items.

               maps:filtermap/2 allows filtering and mapping of a map
               in a single pass.

               maps:from_keys/2 constructs a map from a list of keys
               and a single value and can be used to to optimize sets
               operations such as from_list/1, filter/2,
               intersection/2, and subtract/2.

               maps:foreach/2 allows iteration over a map without
               returning any value.


  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


  OTP-16971    Application(s): stdlib

               *** POTENTIAL INCOMPATIBILITY ***

               The filename:src/1 function which was deprecated in OTP
               20 has been removed. Use filelib:find_source/1,3
               instead.


  OTP-16980    Application(s): erts, stdlib
               Related Id(s): ERL-1308

               The pretty printer for floating point number have been
               changed to make it easier to see if the integer part of
               the number has been rounded. After the change the the
               digit that may have been rounded always appears last or
               just before the exponent character (e or E). This is
               accomplished by always printing the number using
               scientific notation if it is so large that the integer
               part could be rounded.


  OTP-17005    Application(s): erl_interface, erts, jinterface,
               kernel, stdlib
               Related Id(s): OTP-16718

               Accept references up to a size of 160-bits from remote
               nodes. This is the first step in an upgrade path toward
               using references up to 160-bits in a future OTP
               release.


  OTP-17024    Application(s): stdlib

               Add option location to erl_parse:abstract/2.


  OTP-17057    Application(s): erts, stdlib

               All long running functions in the maps API are now
               yielding. In previous releases the functions
               maps:from_list/1, maps:keys/1 and maps:values/1 did not
               yield. This could cause unfair scheduling of processes.


  OTP-17059    Application(s): stdlib
               Related Id(s): PR-2864

               The sets module now has an optional map-based
               implementation, as described in EEP 50.

               To use this implementation, pass the {version,2} option
               to sets:new/1 or sets:from_list/2.


  OTP-17120    Application(s): stdlib

               Added shell_docs:supported_tags/0. This function can be
               used to retrieve the tags currently supported by
               shell_docs.


  OTP-17121    Application(s): stdlib

               The application/erlang+html documentation storage
               format used by shell_docs has been updated to include
               the tags b, strong, h4, h5 and h6.


  OTP-17171    Application(s): stdlib
               Related Id(s): PR-3011

               Improved explanation of {continue,Continue} in
               Module:init/1 of the gen_server documentation.


  OTP-17175    Application(s): stdlib

               The erl_eval module now accepts a map for keeping track
               of bindings. Using an orddict for bindings will still
               work.


  OTP-17199    Application(s): stdlib
               Related Id(s): PR-2658

               Documented epp:scan_erl_form/1 and added
               epp:scan_file/2.


  OTP-17210    Application(s): stdlib

               The standard floating point printing algorithm used by
               the io and io_lib modules has been changed from the
               algorithm described in [1] to the Ryu algorithm [2].
               This gives a significant speed improvement for the
               printing of most floating point numbers and a small
               memory consumption improvement.

               [1]: Robert G. Burger and R. Kent Dybvig. 1996.
               Printing floating-point numbers quickly and accurately.
               In Proceedings of the ACM SIGPLAN 1996 conference on
               Programming language design and implementation (PLDI
               '96). Association for Computing Machinery, New York,
               NY, USA, 108–116.
               DOI:https://doi.org/10.1145/231379.231397

               [2]: Ulf Adams. 2018. Ryū: fast float-to-string
               conversion. In Proceedings of the 39th ACM SIGPLAN
               Conference on Programming Language Design and
               Implementation (PLDI 2018). Association for Computing
               Machinery, New York, NY, USA, 270–282.
               DOI:https://doi.org/10.1145/3192366.3192369

               Thanks to Thomas Depierre


 Full runtime dependencies of stdlib-3.15: compiler-5.0, crypto-3.3,
 erts-12.0, kernel-7.0, sasl-3.0


 ---------------------------------------------------------------------
 --- syntax_tools-2.5 ------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-16678    Application(s): erts, stdlib, syntax_tools, tools
               Related Id(s): PR-2627

               Support for handling abstract code created before OTP
               R15 has been dropped.


  OTP-17180    Application(s): syntax_tools

               The igor and erl_tidy modules have been the removed and
               are now maintained by their original author Richard
               Carlsson. They can be found at github.com/richcarl/igor
               and github.com/richcarl/erl_tidy, respectively.


 Full runtime dependencies of syntax_tools-2.5: compiler-7.0,
 erts-9.0, kernel-5.0, stdlib-3.4


 ---------------------------------------------------------------------
 --- tools-3.5 -------------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-17162    Application(s): tools
               Related Id(s): elixir-lang/elixir#10666

               cover would crash when compiling a module having an
               exported function named clauses.


 --- Improvements and New Features ---

  OTP-16678    Application(s): erts, stdlib, syntax_tools, tools
               Related Id(s): PR-2627

               Support for handling abstract code created before OTP
               R15 has been dropped.


  OTP-16957    Application(s): parsetools, tools

               Add types and specifications for documentation.


  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


 Full runtime dependencies of tools-3.5: compiler-5.0, erts-11.0,
 erts-9.1, kernel-5.4, runtime_tools-1.8.14, stdlib-3.4


 ---------------------------------------------------------------------
 --- wx-2.0 ----------------------------------------------------------
 ---------------------------------------------------------------------

 --- Fixed Bugs and Malfunctions ---

  OTP-17105    Application(s): crypto, erts, odbc, wx
               Related Id(s): PR-2872

               Fix compiler warnings produced by the clang compiler.


 --- Improvements and New Features ---

  OTP-16800    Application(s): wx

               *** HIGHLIGHT ***

               The application has been completely rewritten in order
               to use wxWidgets version 3 as its base.

               Add basic documentation generated from the wxWidgets
               project.


  OTP-16963    Application(s): common_test, compiler, dialyzer,
               erl_interface, erts, kernel, runtime_tools, sasl,
               stdlib, tools, wx

               *** POTENTIAL INCOMPATIBILITY ***

               The experimental HiPE application has been removed,
               together with all related functionality in other
               applications.


  OTP-17213    Application(s): wx
               Related Id(s): PR-3027

               *** HIGHLIGHT ***

               Added support for wxWebView.


  OTP-17219    Application(s): wx
               Related Id(s): OTP-16800

               *** POTENTIAL INCOMPATIBILITY ***

               Due to the support of the new backend versions some API
               incompatibilities have been introduced. Examples of
               changes are:

               wxWindowDC default creators have been removed
               wxClientDC default creators have been removed
               wxPaintDC default creators have been removed
               wxWindow:setVirtualSizeHints() has been deprecated in
               wxWidgets and removed
               wxWindow:makeModal() has been deprecated in wxWidgets
               and removed
               wxToolBar:add/insertTool without label have been
               deprecated in wxWidgets and removed
               wxStyledTextCtrl some functions have changed arguments
               from boolean to int
               wxSizerItem:new() Some arguments have become options
               Removed deprecated wxSizerItem:setWindow() use
               assignWindow()
               Removed deprecated wxSizerItem:setSpacer() use
               assignSpacer()
               Removed deprecated wxSizerItem:setSpacer() use
               assignSpacer()
               Removed deprecated wxSizerItem:setSizer() use
               assignSizer()
               wxMenu append/insert/prepend have changed return value
               and lost IsCheckable argument
               wxListCtrl:setItem/4 changed return value
               wxImage:convertToGreyscale() options have changed
               wxGridSizer:wxGridSizer() options have changed
               wxGrid API have many changes
               wxGraphicsRenderer:create*GradientBrush() uses
               GradientStops now
               wxGraphicsRenderer:createPen() have been removed
               wxGraphicsRenderer:create*GradientBrush() uses
               GradientStops now
               wxGLCanvas API is incompatible
               wxFlexGridSizer:wxFlexGridSizer() options have changed
               wxDisplay:new() options have changed
               wxCalendarDateAttr:new(ColText [,OptList]) have been
               removed
               wxBitmapButton:set/getBitmapSelected() have been
               removed


 Full runtime dependencies of wx-2.0: erts-6.0, kernel-3.0, stdlib-2.0


 ---------------------------------------------------------------------
 --- xmerl-1.4 -------------------------------------------------------
 ---------------------------------------------------------------------

 --- Improvements and New Features ---

  OTP-17123    Application(s): asn1, compiler, et, xmerl

               The compiler will now emit warnings when (previously
               bound) underscore-prefixed variables are matched.


 Full runtime dependencies of xmerl-1.4: erts-6.0, kernel-3.0,
 stdlib-2.5


 ---------------------------------------------------------------------
 --- Thanks to -------------------------------------------------------
 ---------------------------------------------------------------------

 Alexander Clouter, Andrew Shymanel, Bruce Yinhe, Bryan Paxton, Cheng
 Zhe, Erlend Hamberg, Filipe Cristovao, Frej Drejhammar, Henrik
 Lagebrand, Jesper Eskilson, José Valim, Jérôme de Bretagne,
 Linus.yuan, Luca Favatella, Luis Rascao, Luke Bakken, Maria-12648430,
 Mariano Guerra, Mattias Hansson, Maxim Fedorov, Michał Muskała,
 Mikael Pettersson, Paulo F. Oliveira, Philip Kuryloski, Philipp Klaus
 Krause, Pierre Allix, Radek Szymczyszyn, Richard Carlsson, Ruud
 Kamphuis, Stavros Aronis, Taras Halturin, Thomas Depierre, Tianon
 Gravi, Viktor Söderqvist, Wojtek Mach, lagebr, vans163, yfractal,
 Łukasz Niemier


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