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
Improvements and New Features
-
The maximum amount of connections for
epmdon 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_kernelcould 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
GH-10007: #10007 GH-10047: #10047 GH-9632: #9632 GH-9655: #9655 GH-9884: #9884 GH-9992: #9992 PR-10003: #10003 PR-10016: #10016 PR-10023: #10023 PR-10029: #10029 PR-10035: #10035 PR-10036: #10036 PR-10039: #10039 PR-10048: #10048 PR-9843: #9843 PR-9887: #9887 PR-9930: #9930 PR-9949: #9949