perl5182delta - what is new for perl v5.18.2


   This document describes differences between the 5.18.1 release and the
   5.18.2 release.

   If you are upgrading from an earlier release such as 5.18.0, first read
   perl5181delta, which describes differences between 5.18.0 and 5.18.1.

Modules and Pragmata

   Updated Modules and Pragmata
   *   B has been upgraded from version 1.42_01 to 1.42_02.

       The fix for [perl #118525] introduced a regression in the behaviour
       of "B::CV::GV", changing the return value from a "B::SPECIAL"
       object on a "NULL" "CvGV" to "undef".  "B::CV::GV" again returns a
       "B::SPECIAL" object in this case.  [perl #119413]

   *   B::Concise has been upgraded from version 0.95 to 0.95_01.

       This fixes a bug in dumping unexpected SPECIALs.

   *   English has been upgraded from version 1.06 to 1.06_01.  This fixes
       an error about the performance of "$`", $&, and "$'".

   *   File::Glob has been upgraded from version 1.20 to 1.20_01.


   Changes to Existing Documentation
   *   perlrepository has been restored with a pointer to more useful

   *   perlhack has been updated with the latest changes from blead.

Selected Bug Fixes

   *   Perl 5.18.1 introduced a regression along with a bugfix for lexical
       subs.  Some B::SPECIAL results from B::CV::GV became undefs
       instead.  This broke Devel::Cover among other libraries.  This has
       been fixed.  [perl #119351]

   *   Perl 5.18.0 introduced a regression whereby "[:^ascii:]", if used
       in the same character class as other qualifiers, would fail to
       match characters in the Latin-1 block.  This has been fixed.  [perl

   *   Perl 5.18.0 introduced a regression when using ->SUPER::method with
       AUTOLOAD by looking up AUTOLOAD from the current package, rather
       than the current package's superclass.  This has been fixed. [perl

   *   Perl 5.18.0 introduced a regression whereby "-bareword" was no
       longer permitted under the "strict" and "integer" pragmata when
       used together.  This has been fixed.  [perl #120288]

   *   Previously PerlIOBase_dup didn't check if pushing the new layer
       succeeded before (optionally) setting the utf8 flag. This could
       cause segfaults-by-nullpointer.  This has been fixed.

   *   A buffer overflow with very long identifiers has been fixed.

   *   A regression from 5.16 in the handling of padranges led to
       assertion failures if a keyword plugin declined to handle the
       second 'my', but only after creating a padop.

       This affected, at least, Devel::CallParser under threaded builds.

       This has been fixed.

   *   The construct "$r=qr/.../; /$r/p" is now handled properly, an issue
       which had been worsened by changes 5.18.0. [perl #118213]


   Perl 5.18.2 represents approximately 3 months of development since Perl
   5.18.1 and contains approximately 980 lines of changes across 39 files
   from 4 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 5.18.2:

   Craig A. Berry, David Mitchell, Ricardo Signes, 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.

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