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

· 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
· Introduced by perl #113536
<https://rt.perl.org/Public/Bug/Display.html?id=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 psuedo-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
<https://rt.perl.org/Public/Bug/Display.html?id=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
#120925]

· 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]

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.

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