++ed by:

177 PAUSE users
168 non-PAUSE users.

John SJ Anderson
and 1 contributors


perldelta - what is new for perl v5.29.3


This document describes differences between the 5.29.2 release and the 5.29.3 release.

If you are upgrading from an earlier release such as 5.29.1, first read perl5292delta, which describes differences between 5.29.1 and 5.29.2.

Modules and Pragmata

Updated Modules and Pragmata

  • Archive::Tar has been upgraded from version 2.30 to 2.32

  • Carp has been upgraded from version 1.38 to 1.50

  • Data::Dumper has been upgraded from version 2.171 to 2.172

  • Devel::PPPort has been upgraded from version 3.42 to 3.43.

  • File::Path has been upgraded from version 2.15 to 2.16.

  • PathTools has been upgraded from version 3.74 to 3.75

  • perlfaq has been upgraded from version 5.20180605 to 5.0180915.

Removed Modules and Pragmata

  • Locale::Codes has been removed at the request of its author. It continues to be available on CPAN Locale::Codes. [perl #133458].


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, send email to perlbug@perl.org.

Additionally, the following selected changes have been made:

perlreapi, perlvar

  • Improve docs for lastparen, lastcloseparen


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

Platform Support

Platform-Specific Notes


The Windows Server 2003 SP1 Platform SDK build, with its early x64 compiler and tools, was accidentally broken in Perl 5.27.9. This has now been fixed.

Selected Bug Fixes

  • Warnings produced from constant folding operations on overloaded values no longer produce spurious "Use of uninitialized value" warnings. [perl #132683]

  • Fix for "mutator not seen in (lex = ...) .= ..." [perl #133441]


Perl 5.29.3 represents approximately 4 weeks of development since Perl 5.29.2 and contains approximately 150,000 lines of changes across 190 files from 15 authors.

Excluding auto-generated files, documentation and release tools, there were approximately 140,000 lines of changes to 92 .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 5.29.3:

Andy Dougherty, Chris 'BinGOs' Williams, Dagfinn Ilmari Mannsåker, David Mitchell, Eugen Konkov, Graham Knop, H.Merijn Brand, James E Keenan, John SJ Anderson, Karen Etheridge, Karl Williamson, Sawyer X, Slaven Rezic, Steve Hay, Sullivan Beck, 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://rt.perl.org/ . There may also be information at http://www.perl.org/ , the Perl Home Page.

If you believe you have an unreported bug, please run the perlbug program included with your release. Be sure to trim your bug down to a tiny but sufficient test case. Your bug report, along with the output of perl -V, will be sent off to perlbug@perl.org to be analysed by the Perl porting team.

If the bug you are reporting has security implications which make it inappropriate to send to a publicly archived mailing list, 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:


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


The Changes file for an explanation of how to view exhaustive details on what changed.

The INSTALL file for how to build Perl.

The README file for general stuff.

The Artistic and Copying files for copyright information.