perl5224delta1
What is new for perl v5.22.4
Overview
This document describes differences between the 5.22.3 release and the 5.22.4 release.
If you are upgrading from an earlier release such as 5.22.2, first read perl5223delta, which describes differences between 5.22.2 and 5.22.3.
Security
Improved handling of '.' in @INC in base.pm
The handling of (the removal of) '.' in @INC in base has been improved. This resolves some problematic behaviour in the approach taken in Perl 5.22.3, which is probably best described in the following two threads on the Perl 5 Porters mailing list: <http://www.nntp.perl.org/group/perl.perl5.porters/2016/08/msg238991.html>, <http://www.nntp.perl.org/group/perl.perl5.porters/2016/10/msg240297.html>.
"Escaped" colons and relative paths in PATH
On Unix systems, Perl treats any relative paths in the PATH environment variable as tainted when starting a new process. Previously, it was allowing a backslash to escape a colon (unlike the OS), consequently allowing relative paths to be considered safe if the PATH was set to something like "/\:.". The check has been fixed to treat "." as tainted in that example.
Modules and Pragmata
Updated Modules and Pragmata
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base has been upgraded from version 2.22 to 2.22_01. |
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Module::CoreList has been upgraded from version 5.20170114_22 to 5.20170715_22. |
Selected Bug Fixes
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Fixed a crash with
"s///l"where it thought it was dealing with UTF-8 when it wasn't. [GH #15543] <https://github.com/Perl/perl5/issues/15543>
Acknowledgements
Perl 5.22.4 represents approximately 6 months of development since Perl 5.22.3 and contains approximately 2,200 lines of changes across 52 files from 16 authors.
Excluding auto-generated files, documentation and release tools, there were approximately 970 lines of changes to 18 .pm, .t, .c and .h files.
Perl continues to flourish into its third decade thanks to a vibrant community of users and developers. The following people are known to have contributed the improvements that became Perl 5.22.4:
Aaron Crane, Abigail, Aristotle Pagaltzis, Chris 'BinGOs' Williams, David Mitchell, Eric Herman, Father Chrysostomos, James E Keenan, Karl Williamson, Lukas Mai, Renee Baecker, Ricardo Signes, Sawyer X, Stevan Little, Steve Hay, 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.
Releases
4 releases since Debian 10 (Buster); the text changed 3 times.