Patch Package OTP 27.3.4.2 Released

Erlang News & Announcements Erlang News
1 
Patch Package:           OTP 27.3.4.2
Git Tag:                 OTP-27.3.4.2
Date:                    2025-07-17
Trouble Report Id:       OTP-19661, OTP-19670, OTP-19673, OTP-19681,
                         OTP-19683, OTP-19684, OTP-19688, OTP-19691,
                         OTP-19697, OTP-19699, OTP-19702, OTP-19707,
                         OTP-19710, OTP-19711
Seq num:                 ERIERL-1240, ERIERL-1241, ERIERL-1242,
                         GH-10007, GH-10047, GH-9632, GH-9655,
                         GH-9884, GH-9992, PR-10003, PR-10016,
                         PR-10023, PR-10029, PR-10035, PR-10036,
                         PR-10039, PR-10048, PR-9843, PR-9887,
                         PR-9930, PR-9949
System:                  OTP
Release:                 27
Application:             asn1-5.3.4.2, compiler-8.6.1.1,
                         erts-15.2.7.1, kernel-10.2.7.2,
                         public_key-1.17.1.1, ssh-5.2.11.2,
                         ssl-11.2.12.2, stdlib-6.2.2.2
Predecessor:             OTP 27.3.4.1

Check out the git tag OTP-27.3.4.2, and build a full OTP system including
documentation. Apply one or more applications from this build as patches to your
installation using the ‘otp_patch_apply’ tool. For information on install
requirements, see descriptions for each application version below.

asn1-5.3.4.2

The asn1-5.3.4.2 application can be applied independently of other applications
on a full OTP 27 installation.

Fixed Bugs and Malfunctions

  • Decoding a constrained BIT STRING using JER was broken.

    Own Id: OTP-19681
    Related Id(s): PR-9949

Full runtime dependencies of asn1-5.3.4.2

erts-14.0, kernel-9.0, stdlib-5.0

compiler-8.6.1.1

The compiler-8.6.1.1 application can be applied independently of other
applications on a full OTP 27 installation.

Fixed Bugs and Malfunctions

  • Fixed a bug that could cause empty bitstring matches to always succeed, even
    when they should not.

    Own Id: OTP-19711
    Related Id(s): GH-10047, PR-10048

Full runtime dependencies of compiler-8.6.1.1

crypto-5.1, erts-13.0, kernel-8.4, stdlib-6.0

erts-15.2.7.1

The erts-15.2.7.1 application can be applied independently of other applications
on a full OTP 27 installation.

Fixed Bugs and Malfunctions

  • Fix windows uninstall command.

    Own Id: OTP-19683
    Related Id(s): GH-9884, GH-9992, PR-9887

Improvements and New Features

  • The maximum amount of connections for epmd on Windows platforms has been
    increased from 64 to 1024.

    Own Id: OTP-19710
    Related Id(s): PR-10039

Full runtime dependencies of erts-15.2.7.1

kernel-9.0, sasl-3.3, stdlib-4.1

kernel-10.2.7.2

Note! The kernel-10.2.7.2 application cannot be applied independently of other
applications on an arbitrary OTP 27 installation.

   On a full OTP 27 installation, also the following runtime
   dependency has to be satisfied:
   -- erts-15.2.5 (first satisfied in OTP 27.3.2)

Fixed Bugs and Malfunctions

  • socket:sendv/3 with ‘nowait’ sometimes return ‘completion’ without
    ‘CompletionInfo’ (Windows only).

    Own Id: OTP-19661

  • socket:accept can return unexpected ‘select_sent’.

    Own Id: OTP-19684
    Related Id(s): ERIERL-1242

  • net_kernel could be blocked for a very long time when selecting distribution
    module for a connection if the DNS service was slow. This prevented any new
    connections to be set up during that time.

    Own Id: OTP-19702
    Related Id(s): ERIERL-1241, PR-10029

Improvements and New Features

  • Improved documentation of CompletionStatus for asynchronous (nowait) socket
    operations.

    Own Id: OTP-19670
    Related Id(s): PR-9930

Full runtime dependencies of kernel-10.2.7.2

crypto-5.0, erts-15.2.5, sasl-3.0, stdlib-6.0

public_key-1.17.1.1

The public_key-1.17.1.1 application can be applied independently of other
applications on a full OTP 27 installation.

Fixed Bugs and Malfunctions

  • Handle certificates that are signed with RSASSA-PSS but the PSS params are
    specified in the ‘SignatureAlgorithm’ of the signed cert and not in the
    signer’s ‘SubjectPublicKeyInfo’.

    Own Id: OTP-19699
    Related Id(s): GH-9632, PR-10023

Full runtime dependencies of public_key-1.17.1.1

asn1-5.0, crypto-5.0, erts-13.0, kernel-8.0, stdlib-4.0

ssh-5.2.11.2

The ssh-5.2.11.2 application can be applied independently of other applications
on a full OTP 27 installation.

Fixed Bugs and Malfunctions

  • Fix file handle id generation.

    Own Id: OTP-19691
    Related Id(s): PR-10003

  • Fixes a badmatch error, when SFTP operation cannot be processed due to channel
    closed in parallel.

    Own Id: OTP-19707
    Related Id(s): GH-9655, PR-10035, PR-10036

Full runtime dependencies of ssh-5.2.11.2

crypto-5.0, erts-14.0, kernel-9.0, public_key-1.6.1, runtime_tools-1.15.1,
stdlib-5.0, stdlib-6.0

ssl-11.2.12.2

Note! The ssl-11.2.12.2 application cannot be applied independently of other
applications on an arbitrary OTP 27 installation.

   On a full OTP 27 installation, also the following runtime
   dependency has to be satisfied:
   -- public_key-1.16.4 (first satisfied in OTP 27.1.3)

Fixed Bugs and Malfunctions

  • Improve error message for bad arguments to underlying connect.

    Own Id: OTP-19697
    Related Id(s): GH-10007, PR-10016

Improvements and New Features

  • Allow the PSK identity to be the empty string in TLS-1.2 for compatibility
    reasons. It is allowed according to the spec although providing a proper value
    makes more sense.

    Own Id: OTP-19688
    Related Id(s): PR-9843

Full runtime dependencies of ssl-11.2.12.2

crypto-5.0, erts-15.0, inets-5.10.7, kernel-9.0, public_key-1.16.4,
runtime_tools-1.15.1, stdlib-6.0

stdlib-6.2.2.2

The stdlib-6.2.2.2 application can be applied independently of other
applications on a full OTP 27 installation.

Fixed Bugs and Malfunctions

  • A set of small bugs in sort stability for `lists:sort/1` and
    `lists:keysort/1` has been fixed. The bug happened for only some, seemingly
    random, element sequences. Most sorts were stable.

    Sort stability for `lists:sort/1` is only possible to observe when sorting
    lists with floating point and integer numbers of the same value.

    For `lists:keysort/1` the list had to start with two tuples where the keys
    or the whole tuples compared equal.

    Own Id: OTP-19673
    Related Id(s): ERIERL-1240

Full runtime dependencies of stdlib-6.2.2.2

compiler-5.0, crypto-4.5, erts-15.0, kernel-10.0, sasl-3.0

Thanks to

Dmytro Lytovchenko

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