Ubuntu Manpage: perl5321delta - what is new for perl v5.32.1

Provided by: perl-doc_5.38.2-3.2ubuntu0.1_all

NAME

       perl5321delta - what is new for perl v5.32.1

DESCRIPTION

       This document describes differences between the 5.32.0 release and the 5.32.1 release.

       If you are upgrading from an earlier release such as 5.30.0, first read perl5320delta, which describes
       differences between 5.30.0 and 5.32.0.

Incompatible Changes

       There are no changes intentionally incompatible with Perl 5.32.0.  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
       •   Data::Dumper has been upgraded from version 2.174 to 2.174_01.

           A number of memory leaks have been fixed.

       •   DynaLoader has been upgraded from version 1.47 to 1.47_01.

       •   Module::CoreList has been upgraded from version 5.20200620 to 5.20210123.

       •   Opcode has been upgraded from version 1.47 to 1.48.

           A warning has been added about evaluating untrusted code with the perl interpreter.

       •   Safe has been upgraded from version 2.41 to 2.41_01.

           A warning has been added about evaluating untrusted code with the perl interpreter.

Documentation

   New Documentation
       perlgov

       Documentation of the newly formed rules of governance for Perl.

       perlsecpolicy

       Documentation of how the Perl security team operates and how the team evaluates new security reports.

   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>.

       Additionally, the following selected changes have been made:

       perlop

       •   Document range op behaviour change.

Diagnostics

       The following additions or changes have been made to diagnostic  output,  including  warnings  and  fatal
       error messages.  For the complete list of diagnostic messages, see perldiag.

   Changes to Existing Diagnostics
       •   \K not permitted in lookahead/lookbehind in regex; marked by <-- HERE in m/%s/

           This error was incorrectly produced in some cases involving nested lookarounds.  This has been fixed.

           [GH #18123 <https://github.com/Perl/perl5/issues/18123>]

Configuration and Compilation

       •   Newer 64-bit versions of the Intel C/C++ compiler are now recognized and have the correct flags set.

       •   We now trap SIGBUS when Configure checks for "va_copy".

           On  several  systems  the  attempt  to  determine if we need "va_copy" or similar results in a SIGBUS
           instead of the expected SIGSEGV, which previously caused a core dump.

           [GH #18148 <https://github.com/Perl/perl5/issues/18148>]

Testing

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

Platform Support

   Platform-Specific Notes
       MacOS (Darwin)
           The hints file for darwin has been updated to handle future macOS versions beyond 10.  Perl  can  now
           be built on macOS Big Sur.

           [GH          #17946          <https://github.com/Perl/perl5/issues/17946>,          GH         #18406
           <https://github.com/Perl/perl5/issues/18406>]

       Minix
           Build errors on Minix have been fixed.

           [GH #17908 <https://github.com/Perl/perl5/issues/17908>]

Selected Bug Fixes

       •   Some list assignments involving "undef" on  the  left-hand  side  were  over-optimized  and  produced
           incorrect results.

           [GH          #16685          <https://github.com/Perl/perl5/issues/16685>,          GH         #17816
           <https://github.com/Perl/perl5/issues/17816>]

       •   Fixed a bug in which some regexps with recursive subpatterns matched incorrectly.

           [GH #18096 <https://github.com/Perl/perl5/issues/18096>]

       •   Fixed a deadlock that hung the build when Perl is compiled for  debugging  memory  problems  and  has
           PERL_MEM_LOG enabled.

           [GH #18341 <https://github.com/Perl/perl5/issues/18341>]

       •   Fixed   a   crash   in  the  use  of  chained  comparison  operators  when  run  under  "no  warnings
           'uninitialized'".

           [GH         #17917          <https://github.com/Perl/perl5/issues/17917>,          GH          #18380
           <https://github.com/Perl/perl5/issues/18380>]

       •   Exceptions thrown from destructors during global destruction are no longer swallowed.

           [GH #18063 <https://github.com/Perl/perl5/issues/18063>]

Acknowledgements

Perl 5.32.1 represents approximately 7 months of development since Perl 5.32.0 and contains approximately
7,000 lines of changes across 80 files from 23 authors.

Excluding auto-generated files, documentation and release tools, there were approximately 1,300 lines of
changes to 23 .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 5.32.1:

Adam Hartley, Andy Dougherty, Dagfinn Ilmari Mannsåker, Dan Book, David Mitchell, Graham Knop, Graham
Ollis, Hauke D, H.Merijn Brand, Hugo van der Sanden, John Lightsey, Karen Etheridge, Karl Williamson,
Leon Timmermans, Max Maischein, Nicolas R., Ricardo Signes, Richard Leach, Sawyer X, Sevan Janiyan, Steve
Hay, Tom Hukins, Tony Cook.

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.

Give Thanks

       If  you wish to thank the Perl 5 Porters for the work we had done in Perl 5, you can do so by running the
       "perlthanks" program:

           perlthanks

       This will send an email to the Perl 5 Porters list with your show of thanks.