Provided by: perl-doc_5.28.1-6build1_all bug


       perl5184delta - what is new for perl v5.18.4


       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
       ·   Digest::SHA has been upgraded from 5.84_01 to 5.84_02.

       · 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
           ·   Introduced by perl #113536
               <>, 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.  [perl #121676

Selected Bug Fixes

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

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

       ·   perl can again be built with USE_64_BIT_INT, with Visual C 2003, 32 bit.  [perl

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

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

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


       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 .
       There may also be information at , 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 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  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.


       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.