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PERL5184DELTA(1pm)     Perl Programmers Reference Guide     PERL5184DELTA(1pm)




NAME

       perl5184delta - what is new for perl v5.18.4


DESCRIPTION

       This document describes differences between the 5.18.4 release and the
       5.18.2 release.  Please note:  This document ignores perl 5.18.3, a
       broken release which existed for a few hours only.

       If you are upgrading from an earlier release such as 5.18.1, first read
       perl5182delta, which describes differences between 5.18.1 and 5.18.2.


Modules and Pragmata

   Updated Modules and Pragmata
       o   Digest::SHA has been upgraded from 5.84_01 to 5.84_02.

       o   perl5db.pl has been upgraded from version 1.39_10 to 1.39_11.

           This fixes a crash in tab completion, where available. [perl
           #120827]  Also, filehandle information is properly reset after a
           pager is run. [perl #121456]


Platform Support

   Platform-Specific Notes
       Win32
           o   Introduced by [GH #12161]
               <https://github.com/Perl/perl5/issues/12161>, a memory leak on
               every call to "system" and backticks (" `` "), on most Win32
               Perls starting from 5.18.0 has been fixed.  The memory leak
               only occurred if you enabled pseudo-fork in your build of Win32
               Perl, and were running that build on Server 2003 R2 or newer
               OS.  The leak does not appear on WinXP SP3.  [GH #13741]
               <https://github.com/Perl/perl5/issues/13741>


Selected Bug Fixes

       o   The debugger now properly resets filehandles as needed. [perl
           #121456]

       o   A segfault in Digest::SHA has been addressed.  [perl #121421]

       o   perl can again be built with USE_64_BIT_INT, with Visual C 2003, 32
           bit.  [perl #120925]

       o   A leading { (brace) in formats is properly parsed again. [perl
           #119973]

       o   Copy the values used to perturb hash iteration when cloning an
           interpreter.  This was fairly harmless but caused "valgrind" to
           complain. [perl #121336]

       o   In Perl v5.18 "undef *_; goto &sub" and "local *_; goto &sub"
           started crashing.  This has been fixed. [perl #119949]


Acknowledgements

       Perl 5.18.4 represents approximately 9 months of development since Perl
       5.18.2 and contains approximately 2,000 lines of changes across 53
       files from 13 authors.

       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 5.18.4:

       Daniel Dragan, David Mitchell, Doug Bell, Father Chrysostomos, Hiroo
       Hayashi, James E Keenan, Karl Williamson, Mark Shelor, Ricardo Signes,
       Shlomi Fish, Smylers, 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.


Reporting Bugs

       If you find what you think is a bug, you might check the articles
       recently posted to the comp.lang.perl.misc newsgroup and the perl bug
       database at http://rt.perl.org/perlbug/ .  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 please
       send it to perl5-security-report@perl.org.  This points to a closed
       subscription unarchived mailing list, which includes all the core
       committers, who will be able to help assess the impact of issues,
       figure out a resolution, and help co-ordinate the release of patches to
       mitigate or fix the problem across all platforms on which Perl is
       supported.  Please only use this address for security issues in the
       Perl core, not for modules independently distributed on CPAN.


SEE ALSO

       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.



perl v5.34.0                      2021-05-04                PERL5184DELTA(1pm)

perl 5.34.0 - Generated Thu Feb 24 19:09:07 CST 2022
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