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NAME ^

perl5172delta - what is new for perl v5.17.2

DESCRIPTION ^

This document describes differences between the 5.17.1 release and the 5.17.2 release.

If you are upgrading from an earlier release such as 5.17.0, first read perl5171delta, which describes differences between 5.17.0 and 5.17.1.

Core Enhancements ^

kill with negative signal names

kill has always allowed a negative signal number, which kills the process group instead of a single process. It has also allowed signal names. But it did not behave consistently, because negative signal names were treated as 0. Now negative signals names like -INT are supported and treated the same way as -2 [perl #112990].

pack is now constant folded.

pack with constant arguments is now constant folded in most cases [perl #113470].

Modules and Pragmata ^

Updated Modules and Pragmata

Documentation ^

Changes to Existing Documentation

perlfunc

Diagnostics ^

The following additions or changes have been made to diagnostic output, including warnings and fatal error messages. For the complete list of diagnostic messages, see perldiag.

New Diagnostics

New Errors

New Warnings

Changes to Existing Diagnostics

Configuration and Compilation ^

Platform Support ^

Platform-Specific Notes

VMS

Quotes are now removed from the command verb (but not the parameters) for commands spawned via system, backticks, or a piped open. Previously, quotes on the verb were passed through to DCL, which would fail to recognize the command. Also, if the verb is actually a path to an image or command procedure on an ODS-5 volume, quoting it now allows the path to contain spaces.

AIX

Configure now always adds -qlanglvl=extc99 to the CC flags on AIX when using xlC. This will make it easier to compile a number of XS-based modules that assume C99 [perl #113778].

Internal Changes ^

Selected Bug Fixes ^

Acknowledgements ^

Perl 5.17.2 represents approximately 4 weeks of development since Perl 5.17.1 and contains approximately 15,000 lines of changes across 320 files from 34 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 5.17.2:

Aristotle Pagaltzis, Brian Fraser, Chip Salzenberg, Chris 'BinGOs' Williams, Colin Kuskie, Craig A. Berry, Daniel Dragan, Daniel Perrett, Darin McBride, David Golden, David Mitchell, Dominic Hargreaves, E. Choroba, Eric Brine, Father Chrysostomos, François Perrad, H.Merijn Brand, Jan Dubois, Jesse Luehrs, Karl Williamson, Lukas Mai, Matthew Horsfall, Nicholas Clark, Oleg Nesterov, Reini Urban, Ricardo Signes, Robin Barker, Shirakata Kentaro, Shlomi Fish, Steve Hay, Tony Cook, Vincent Pit, Walt Mankowski, Yves Orton.

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.

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