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PERL5383DELTA

Section: Perl Programmers Reference Guide (1)
Updated: 202-0-24
Index Return to Main Contents

NAME

perl5383delta - what is new for perl v5.38.3

DESCRIPTION

This document describes differences between the 5.38.2 release and the 5.38.3 release.

If you are upgrading from an earlier release such as 5.38.1, first read perl5382delta, which describes differences between 5.38.1 and 5.38.2.

Incompatible Changes

There are no changes intentionally incompatible with 5.38.2. If any exist, they are bugs, and we request that you submit a report. See "Reporting Bugs" below.

Modules and Pragmata

Updated Modules and Pragmata

*: DynaLoader has been upgraded from version 1.54 to 1.54_01.
This fixes an error when building Perl on OS X 10.3. [GH #21751 <https://github.com/Perl/perl5/issues/21751>]
*: Module::CoreList has been upgraded from version 5.20231129 to 5.20250118_38.

Documentation

Changes to Existing Documentation

We have attempted to update the documentation to reflect the changes listed in this document. If you find any we have missed, open an issue at <https://github.com/Perl/perl5/issues>.

Testing

Tests were added and changed to reflect the other additions and changes in this release.

Selected Bug Fixes

*: "use 5.36;" or later didn't enable the post parse reporting of Name "%s::%s" used only once: possible typo warnings when enabling warnings. [GH #21271 <https://github.com/Perl/perl5/issues/21271>]
*: Fixed a crash or assertion when cleaning up a closure that refers to an outside "our" sub. [GH #21067 <https://github.com/Perl/perl5/issues/21067>]
*: Don't clear the integer flag "IOK" from lines in the "@{"_<$sourcefile"}" array when a "dbstate" op is removed for that line. This was broken when fixing [GH #19198 <https://github.com/Perl/perl5/issues/19198>]. [GH #21564 <https://github.com/Perl/perl5/issues/21564>]
*: Fixed an issue where utf8n_to_uvchr() failed to correctly identify certain invalid UTF-8 sequences as invalid. Specifically, sequences that start with continuation bytes or unassigned bytes could cause unexpected behaviour or a panic. This fix ensures that such invalid sequences are now properly detected and handled. This correction also resolves related issues in modules that handle UTF-8 processing, such as Encode.
*: Builds with "-msse" and quadmath on 32-bit x86 systems would crash with a misaligned access early in the build. [GH #22577 <https://github.com/Perl/perl5/issues/22577>]
*: Fixed a bug introduced in Perl 5.34 whereby uninitialized data in the underlying array of an AV after it has been unshifted and resized could lead to segmentation faults or other errors depending on the data. [GH #21235 <https://github.com/Perl/perl5/issues/21235>]
*: Fixed an issue where Perl sometimes failed to correctly toggle into a dot radix locale. [GH #21746 <https://github.com/Perl/perl5/issues/21746>] [GH #22176 <https://github.com/Perl/perl5/issues/22176>]
*: Stopped certain syntax errors from provoking core dumps due to a double free of an OP. [GH #21724 <https://github.com/Perl/perl5/issues/21724>]
*: Fixed a double free error or possible memory leak when failing to compile certain regexps. [GH #21661 <https://github.com/Perl/perl5/issues/21661>]
*: Fixed the initialization of Perl's querylocale() emulation so that the locale is set correctly if the environment specifies a non-C locale. [GH #21366 <https://github.com/Perl/perl5/issues/21366>]

Acknowledgements

Perl 5.38.3 represents approximately 14 months of development since Perl 5.38.2 and contains approximately 5,600 lines of changes across 62 files from 22 authors.

Excluding auto-generated files, documentation and release tools, there were approximately 2,600 lines of changes to 20 .pm, .t, .c and .h files.

Perl continues to flourish into its fourth decade thanks to a vibrant community of users and developers. The following people are known to have contributed the improvements that became Perl 5.38.3:

Anton Voloshin, Chris 'BinGOs' Williams, Dagfinn Ilmari Mannsåker, E. Choroba, Elvin Aslanov, Graham Knop, James E Keenan, Karen Etheridge, Karl Williamson, Lukas Mai, Masahiro Honma, Matthew Horsfall, Max Maischein, Paul Evans, Philippe Bruhat (BooK), Renee Baecker, Ricardo Signes, Richard Leach, Steve Hay, Thibault Duponchelle, Tony Cook, Yves Orton.

The list above is almost certainly incomplete as it is automatically generated from version control history. In particular, it does not include the names of the (very much appreciated) contributors who reported issues to the Perl bug tracker.

Many of the changes included in this version originated in the CPAN modules included in Perl's core. We're grateful to the entire CPAN community for helping Perl to flourish.

For a more complete list of all of Perl's historical contributors, please see the AUTHORS file in the Perl source distribution.

Reporting Bugs

If you find what you think is a bug, you might check the perl bug database at <https://github.com/Perl/perl5/issues>. There may also be information at <http://www.perl.org/>, the Perl Home Page.

If you believe you have an unreported bug, please open an issue at <https://github.com/Perl/perl5/issues>. Be sure to trim your bug down to a tiny but sufficient test case.

If the bug you are reporting has security implications which make it inappropriate to send to a public issue tracker, then see "SECURITY VULNERABILITY CONTACT INFORMATION" in perlsec for details of how to report the issue.