- Changes for 22.1:
  * kernel: The type specification for gen_sctp:connect/4,5 has
    been corrected.
  * kernel: Extra -mode flags given to erl are ignored with a
    warning.
  * kernel: Fix type spec for seq_trace:set_token/2.
  * kernel: logger:compare_levels/2 would fail with a badarg
    exception if given the values all or none as any of the
    parameters. This is now corrected.
  * kernel: Fix bug where the log file in logger_std_h would not be
    closed when the inode of the file changed. This would in turn
    cause a file descriptor leak when tools like logrotate are
    used.
  * kernel: Fix a race condition in the debugging function
    net_kernel:nodes_info/0.
  * kernel: Fix race condition when closing a file opened in
    compressed or delayed_write mode.
  * kernel: The possibility to send ancillary data, in particular
    the TOS field, has been added to gen_udp:send/4,5.
  * kernel: If the log file was given with relative path, the
    standard logger handler (logger_std_h) would store the file
    name with relative path. If the current directory of the node
    was later changed, a new file would be created relative the new
    current directory, potentially failing with an enoent if the
    new directory did not exist. This is now corrected and
    logger_std_h always stores the log file name as an absolute
    path, calculated from the current directory at the time of the
    handler startup.
  * kernel: Support local sockets with inet:i/0.
  * observer: Fix bug after a user followed link on a pid from an
    expanded term window.
  * observer: Improved dark mode colors on Linux.
  * mnesia: mnesia:add_table_copy/3 could cause a deadlock if
    called when a new node was starting.
  * mnesia: Transactions with sticky locks could with async_asym
    transactions be committed in the wrong order, since asym
    transaction are spawned on the remote nodes. To fix this bug
    the communication protocol between mnesia nodes had to be
    updated, thus mnesia will no longer be able to connect to nodes
    earlier than mnesia-4.14 , OTP-19.0. *** POTENTIAL
    INCOMPATIBILITY ***
  * stdlib: re:run() now yields when validating utf8 in a large
    subject.
  * stdlib: Upgraded the ERTS internal PCRE library from version
    8.42 to version 8.43. See
    http://pcre.org/original/changelog.txt for information about
    changes made to PCRE. This library implements major parts of
    the re regular expressions module.
  * stdlib: The bug with ID ERL-717 has been fixed. The functions
    io:columns() and io:rows() only worked correctly inside
    interactive erlang shells before this fix. These functions
    returned {error,enotsup} before this fix even if stdout and
    stdin were connected to a terminal when they were invoked from
    an escript or a program started with e.g., erl -noshell.
  * stdlib: Fixed handling of ".." and "@" in wildcards. ".." would
    only work when preceded by a literal pattern such as in "a/..",
    not when preceded by wildcard characters such as in "*/..". The
    combination "@/.." was also broken, and in addition "@" in a
    pattern could degrade performance of the wildcard matching.
  * stdlib: Make sure ets:fun2ms() can handle ++/2 in the head of
    functions when called from the shell.
  * stdlib: Debugging of time-outs in gen_statem has been improved.
    Starting a time-out is now logged in sys:log and sys:trace.
    Running time-outs are visible in server crash logs, and with
    sys:get_status. Due to this system events {start_timer, Action,
    State} and {insert_timout, Event, State} have been added, which
    may surprise tools that rely on the format of these events. New
    features: The EventContent of a running time-out can be updated
    with {TimeoutType, update, NewEventContent}. Running time-outs
    can be cancelled with {TimeoutType, cancel} which is more
    readable than using Time = infinity. *** POTENTIAL
    INCOMPATIBILITY ***
  * stdlib: re:run() now avoids validating utf8 in the subject more
    than once in the same call. This validation could previously be
    performed multiple times when the global option was passed.
  * stdlib: ETS ordered_set tables with write_concurrency enabled
    has got a performance issue fixed. There were no limits for the
    values of internal statistics counters before this fix. This
    could result in that the data structure sometimes reacted
    slowly to a change in how many parallel processes were using
    it.
  * stdlib: The ordsets:union/1 is now faster when passed a long
    list of ordsets.
  * stdlib: unicode:characters_to_binary() could return very small
    binaries as reference counted off heap binaries. This could
    cause an unnecessary large memory usage and an unnecessary load
    on the binary allocator. Small binaries are now always returned
    as heap binaries.
  * stdlib: Display a more meaningful error message when a bad I/O
    server is used in a script written in Erlang (escript).
  * stdlib: New feature ets:info(_, binary) to get information
    about all reference counted binaries kept by a table. This is
    the same kind of debug information that process_info(_, binary)
    returns for a process.
  * stdlib: Corrected ETS documentation about the behavior of
    compiled match specifications when serialized through external
    format.
  * tools: cover would fail to start if two processes tried to
    start it at the exact same time.
  * common_test: If a ct hook is installed in the suite/0 function
    in a test suite, then the hook's terminate/1 function would be
    called several times without it's init/2 function being called
    first. This is now corrected.
  * common_test: If init_per_testcase fails, the test itself is
    skipped. According to the documentation, it should be possible
    to change the result to failed in a hook function. The only
    available hook function in this case is post_init_per_testcase,
    but changing the return value there did not affect the test
    case result. This is now corrected.
  * common_test: Add ct_netconfc support for NETCONF 1.1 (RFC
    6241). The 1.1 base capability can be sent in hello, and RFC
    6242 chunk framing is applied when both client and server
    advertise 1.1 support.
  * common_test: Correct lib_dir paths in common_tests opaque data
    structure that is passed to ct_release_test callback modules in
    functions upgrade_init/2, upgrade_upgraded/2 and
    upgrade_downgraded/2. The incorrect paths may cause confusion
    when debugging although it will not cause any incorrect
    behavior on the part of common_test as it is currently not
    used.
  * erts: If you set {linger,{true,0}} on a gen_tcp listen socket,
    accept a connection on that socket, and then close the accepted
    socket, now the linger zero setting is transferred to the
    accepted socket. Before this correction that information was
    lost and the close behaviour on the accepted socket incorrect.
  * erts: Sending ancillary data implemented in OTP-15747
    accidentally left behind test code that caused all UDP sends to
    fail on Windows. This has now been fixed.
  * erts: In the socket nif, used invalid flags when if-def'ing for
    supported TCP flags: TCP_MAXSEG and TCP_NODELAY (the support
    function).
  * erts: Fixed memory leaks in experimental socket module.
  * erts: re:run() now yields when validating utf8 in a large
    subject.
  * erts: Fixed bug in seq_trace:set_token(label,Term) which could
    cause VM crash if Term was heap allocated (not an atom, small
    integer, local pid or port). Bug exists since OTP 21.0 when
    terms other than small integers were first allowed as labels.
  * erts: Extra -mode flags given to erl are ignored with a
    warning.
  * erts: Don't loop indefinitely when --enable-pgo is given to
    configure, but compiler does not support pgo.
  * erts: Fix seq_trace:print/2 not to raise badarg exception if
    label is not a small integer. Bug exists since OTP 21.0.
  * erts: Fixed hipe_flush_icache_range for non-Linux OS on ARM.
  * erts: The fix in OTP-15871 was too conservative and disabled
    the offending load-time optimization in some cases where it was
    safe.
  * erts: Upgraded the ERTS internal PCRE library from version 8.42
    to version 8.43. See http://pcre.org/original/changelog.txt for
    information about changes made to PCRE. This library implements
    major parts of the re regular expressions module.
  * erts: Fix race condition when closing a socket while using
    {active,N} on Windows.
  * erts: Allow more than one -config command line option to erl on
    Windows to conform with other OS.
  * erts: Fix so that ERL_FLAGS environment variable does not
    interfere with command line arguments. Before this fix you
    could write: ERL_FLAGS="10" erl +S and erlang would start as if
    +S had been given the argument 10.
  * erts: The bug with ID ERL-717 has been fixed. The functions
    io:columns() and io:rows() only worked correctly inside
    interactive erlang shells before this fix. These functions
    returned {error,enotsup} before this fix even if stdout and
    stdin were connected to a terminal when they were invoked from
    an escript or a program started with e.g., erl -noshell.
  * erts: Do not use named label in ethread.c inline assemble. This
    allows erts to be compiled using gcc 9.1.0 with LTO enabled.
  * erts: erlang:fun_to_list/1 will now escape the module and
    function name when necessary.
  * erts: process_info(P,binary) would neglect to look through heap
    fragments, potentially missing a few binaries associated with
    the process.
  * erts: HiPE is now automatically disabled on systems with non-
    glibc implementation (for instance musl). This is because musl
    does not provide the API's for guaranteeing that signals are
    delivered on the correct native stack.
  * erts: Fixed bug triggered if a process is killed during call to
    persistent_term:put or persistent_term:erase.
  * erts: Add units to all memory slogans in the crash dump
    documentation.
  * erts: Fix a bug in binary_to_term that would crash the emulator
    if a term larger than 16GB was to be decoded.
  * erts: Fixed bug related to an exiting process sending EXIT and
    DOWN signals to remote linked/monitored processes. Bugs exists
    since OTP 22.0.
  * erts: erlc can now automatically use a compile server to avoid
    starting an Erlang system for each file to be compiled in a
    multi-file project. See the documentation for how to enable it.
  * erts: The possibility to send ancillary data, in particular the
    TOS field, has been added to gen_udp:send/4,5.
  * erts: The net module has been split into 'net' (kernel) and
    prim_net (preloaded).
  * erts: Socket counters now works as expected and can also be
    extracted with the (new) info function.
  * erts: re:run() now avoids validating utf8 in the subject more
    than once in the same call. This validation could previously be
    performed multiple times when the global option was passed.
  * erts: The un-documented function erlang:dist_get_stat/1 now
    returns the real value of what the distribution queue contains
    instead of a boolean.
  * erts: ETS ordered_set tables with write_concurrency enabled has
    got a performance issue fixed. There were no limits for the
    values of internal statistics counters before this fix. This
    could result in that the data structure sometimes reacted
    slowly to a change in how many parallel processes were using
    it.
  * erts: Optimize the reception of large distribution messages.
  * erts: Binary matching and functions like split_binary/2 will
    now create heap binaries when the results are small enough,
    reducing the chances of small sub-binaries keeping large
    binaries alive.
  * erts: Fixed rare emulator crash in instrument:allocations/0-1.
  * erts: Ports could pass very small binaries as reference counted
    off heap binaries to processes. This could cause an unnecessary
    large memory usage and an unnecessary load on the binary
    allocator. Small binaries are now always passed as heap
    binaries to processes.
  * erts: unicode:characters_to_binary() could return very small
    binaries as reference counted off heap binaries. This could
    cause an unnecessary large memory usage and an unnecessary load
    on the binary allocator. Small binaries are now always returned
    as heap binaries.
  * erts: Improved erl_nif documentation regarding on_load and
    Erlang stub/fallback functions.
  * erts: New feature ets:info(_, binary) to get information about
    all reference counted binaries kept by a table. This is the
    same kind of debug information that process_info(_, binary)
    returns for a process.
  * erl_docgen: Update the documentation build support to handle
    FOP 2.1 .
  * ftp: A possibly infinite loop when receiving messages divided
    in parts is removed.
  * dialyzer: Allow native compilation when using Dialyzer from
    Erlang. The options native (defaults to false) and native_cache
    have been added.
  * eunit: Handle get_until request with explicit encoding in the
    implementation of the I/O protocol.
  * snmp: Fix various minor issues related to Dialyzer. Mostly
    these are dialyzer warnings, but there was also some minor bugs
    detected by Dialyzer.
  * snmp: Fixed a dets usage problem detected by dialyzer.
  * snmp: The function snmp:print_version_info() prints various
    version info. For each module a number of items are printed,
    such as app vsn and md5 digest. And an attempt was also made to
    print "compile time". This used to be available in the
    module_info for each module, but has now been removed.
  * snmp: The use of the deprecated random module has been replaced
    the with rand module.
  * snmp: Removed use of the deprecated function
    erlang:get_stacktrace(). Instead make use of the 'catch
    Class:Error:Stacktrace' feature.
  * syntax_tools: Add missing calls to erl_syntax:unwrap/1. The
    nodes concerned represent names and values of maps and map
    types.
  * wx: Fix a driver bug that could crashes when allocating memory.
  * erl_interface: Fix bugs in ei_print_term for binaries and bit
    strings causing incorrect output.
  * erl_interface: Fixed bug in ei_decode_fun for very old fun
    encoding format. Bug exist since OTP 22.0.
  * erl_interface: ei_print_term() now supports printing of maps
    and funs.
  * xmerl: xmerl_sax_parser crashed during charset detection when
    the xml declarations attribute values was missing the closing
    quotation (' or ").
  * ssl: Handling of zero size fragments in TLS could cause an
    infinite loop. This has now been corrected.
  * ssl: DTLS record check needs to consider that a resent hello
    message can have a different version than the negotiated.
  * ssl: Basic support for TLS 1.3 Client for experimental use. For
    more information see the Standards Compliance chapter of the
    User's Guide.
  * ssl: Correct solution for retaining tcp flow control OTP-15802
    (ERL-934) as to not break ssl:recv as reported in (ERL-938)
  * ssl: Enhance dialyzer specs to reflect implementation better
    and avoid dialyzer warnings for the user that wants to use TLS
    with unix domain sockets.
  * ssl: Add support for ECDSA signature algorithms in TLS 1.3.
  * ssl: Correct error handling of TLS downgrade, possible return
    values form ssl:close/2 when downgrading is {ok, Port} or
    {error, Reason}, it could happen that only ok was returned
    instead of {error, closed} when downgrade failed due to that
    the peer closed the TCP connection.
  * os_mon: Fix disk_sup to ignore squashfs on Linux when
    determining if a mounted filesystem is full or not.
  * os_mon: Fix bug where cpu_sup:util() always returned 100% on
    systems not using gnu libc, for example Alpine OS.
  * ssh: Fixed wrong type definition for the daemon option
    subsystems.
  * ssh: Fixed a possible SSH logging crash if there was a problem
    in an early stage of session setup.
  * ssh: The documentation for the modules ssh_connection, ssh_sftp
    and ssh_sftpd are now generated from the -spec:s.
  * ssh: Internal cleanup including removal of the internal file
    ssh_userauth.hrl.
  * ssh: Removed unused definitions in ssh.hrl.
  * ssh: Removed unused fields in the internal #connection{}
    record.
  * ssh: To get information of a connection_ref() from for example
    ssh:connect/3, there was previously one function available
    namely ssh:connection_info/2. This ticket adds
    ssh:connection_info/1 which returns all information. For
    daemons (servers) started with for example ssh:daemon/2 the
    function ssh:daemon_info/1 returning all information was
    available. This ticket adds ssh:daemon_info/2 which returns
    only the information specified in the second argument. The info
    of connections and of daemons now also includes the item
    'options'. Only those options that does not have their default
    values are returned. For a connection also the items
    'algorithms' and 'channels' are added.
  * inets: httpd - Accept singel LF as line terminator
  * inets: mod_esi will now always propagate the actual HTTP status
    code that it answered with, to later mod-modules, and not in
    some cases hardcode 200.
  * compiler: Code such as the following would crash the compiler
    in OTP 22: [some_atom = fun some_function/1]
  * compiler: Compilation could get really slow (in the order of
    minutes instead of seconds) when compiling huge functions.
    (Thanks to Kostis Sagonas for reporting this bug.)
  * compiler: Fixed a bug in the validator that could reject valid
    code.
  * compiler: In rare circumstances, when two clauses had identical
    bodies and guard tests that tested a single boolean variable,
    the guard test for the second clause could be discarded,
    executing the second clause unconditionally if the first clause
    was not executed.
  * compiler: Fixed extremely slow compilation for huge functions
    doing predominantly pattern matching.
  * compiler: The compiler could generate unsafe code (that would
    crash the runtime system) for map pattern matching. The code
    could be unsafe if the matched key was not present in the map
    at runtime.
  * compiler: Correct code using try/after could fail to compile
    when using the option 'no_type_opt'.
  * compiler: The compiler could crash when compiling code that
    called 'length/1' on a binary extracted using the binary
    syntax.
  * compiler: Fixed a bug where the compiler could fail with an
    internal consistency failure error when compiling receive
    statements.
  * compiler: Fixed a problem where the compiler would crash when
    compiling binary matching in a function head.
  * public_key: Support Password based encryption with AES
  * public_key: Change dialyzer spec to avoid confusion
  * runtime_tools: Fix dbg:stop_clear/0 to also clear trace events
    (send and 'receive').
  * megaco: Fix various minor issues related to Dialyzer. Mostly
    these are dialyzer warnings, but there was also some minor bugs
    detected by Dialyzer.
  * crypto: The implementation of crypto_one_time/4 is adjusted to
    match the type specification. The spec and the black-box
    behaviour of the function are unchanged. Some details: Both the
    spec and the implementation were correct seen separately. But
    with both of them combined simultaneously with
    crypto_one_time/5 which was called by the implementation of
    crypto_one_time/4, an (obvious) error was detected by a
    Dialyzer with more thorough checking than usual.
  * crypto: When using crypto with FIPS mode enabled, the digests
    were not correctly handled.
  * crypto: A memory leak in error handling code in
    ng_crypto_init_nif is fixed.
  * crypto: Fixed the broken static build of the crypto nifs
  * crypto: The Message Authentication Codes (MAC) CMAC, HMAC and
    Poly1305 are unified into common functions in the New Crypto
    API. See the manual for CRYPTO.
  * sasl: The net module has been split into 'net' (kernel) and
    prim_net (preloaded).
  * jinterface: Replaced deprecated <tt> with <code> in
    documentation.
- Rebased patches:
  + 0001-erts-Do-not-use-named-no_cpuid-label-in-asm.patch dropped (merged upstream)

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