/ 
perl-5.23.3
River stage five • 11849 direct dependents • 33721 total dependents
/ perldelta

NAME

perldelta - what is new for perl v5.23.3

DESCRIPTION

This document describes differences between the 5.23.2 release and the 5.23.3 release.

If you are upgrading from an earlier release such as 5.23.1, first read perl5232delta, which describes differences between 5.23.1 and 5.23.2.

Core Enhancements

qr/(?[ ])/ now works in UTF-8 locales

Extended Bracketed Character Classes now will successfully compile when use locale is in effect. The compiled pattern will use standard Unicode rules. If the runtime locale is not a UTF-8 one, a warning is raised and standard Unicode rules are used anyway. No tainting is done since the outcome does not actually depend on the locale.

Incompatible Changes

An off by one issue in $Carp::MaxArgNums has been fixed

$Carp::MaxArgNums is supposed to be the number of arguments to display. Prior to this version, it was instead showing $Carp::MaxArgNums + 1 arguments, contrary to the documentation.

Modules and Pragmata

Updated Modules and Pragmata

  • B has been upgraded from version 1.58 to 1.59.

  • bignum has been upgraded from version 0.39 to 0.40.

  • Carp has been upgraded from version 1.36 to 1.37.

  • Compress::Raw::Zlib has been upgraded from version 2.068 to 2.068_01.

  • DynaLoader has been upgraded from version 1.33 to 1.34.

  • Encode has been upgraded from version 2.76 to 2.77.

  • encoding has been upgraded from version 2.16 to 2.17.

  • English has been upgraded from version 1.09 to 1.10.

  • Errno has been upgraded from version 1.23 to 1.24.

  • experimental has been upgraded from version 0.013 to 0.014.

  • ExtUtils::MakeMaker has been upgraded from version 7.04_01 to 7.10.

  • ExtUtils::ParseXS has been upgraded from version 3.29 to 3.30.

  • ExtUtils::Typemaps has been upgraded from version 3.29 to 3.30.

  • File::Find has been upgraded from version 1.30 to 1.31.

  • File::Glob has been upgraded from version 1.24 to 1.25.

  • File::Spec has been upgraded from version 3.57 to 3.58.

  • Hash::Util::FieldHash has been upgraded from version 1.15 to 1.17.

  • if has been upgraded from version 0.0604 to 0.0605.

  • locale has been upgraded from version 1.06 to 1.07.

  • Locale::Codes has been upgraded from version 3.35 to 3.36.

  • Module::CoreList has been upgraded from version 5.20150820 to 5.20150920.

  • mro has been upgraded from version 1.17 to 1.18.

  • Pod::Perldoc has been upgraded from version 3.25 to 3.25_01.

  • POSIX has been upgraded from version 1.56 to 1.57.

  • Socket has been upgraded from version 2.020 to 2.020_01.

  • Test has been upgraded from version 1.26 to 1.27.

  • Thread::Queue has been upgraded from version 3.05 to 3.06.

  • threads has been upgraded from version 2.02 to 2.03.

  • Time::HiRes has been upgraded from version 1.9726 to 1.9727_02.

  • Unicode::UCD has been upgraded from version 0.62 to 0.63.

  • Win32 has been upgraded from version 0.51 to 0.52.

New Modules and Pragmata

Documentation

Changes to Existing Documentation

perlcall

  • A number of cleanups have been made to perlcall, including:

    • use EXTEND(SP, n) and PUSHs() instead of XPUSHs() where applicable and update prose to match

    • add POPu, POPul and POPpbytex to the "complete list of POP macros" and clarify the documentation for some of the existing entries, and a note about side-effects

    • add API documentation for POPu and POPul

    • use ERRSV more efficiently

    • approaches to thread-safety storage of SVs.

perlunicode

  • Discourage use of 'In' prefix for Unicode Block property.

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

Testing

  • Parallel building has been added to the dmake makefile.mk makefile. All Win32 compilers are supported.

Platform Support

Platform-Specific Notes

EBCDIC cmp() and sort() fixed for UTF-EBCDIC strings

Comparing two strings that were both encoded in UTF-8 (or more precisely, UTF-EBCDIC) did not work properly until now. Since sort() uses cmp(), this fixes that as well.

EBCDIC tr/// and yr/// fixed for \N{}, and use utf8 ranges

Perl v5.22 introduced the concept of portable ranges to regular expression patterns. A portable range matches the same set of characters no matter what platform is being run on. This concept is now extended to tr///. See tr///.

There were also some problems with these operations under use utf8, which are now fixed

Win32

  • Parallel building has been added to the dmake makefile.mk makefile. All Win32 compilers are supported.

AmigaOS

The AmigaOS port has been reintegrated into the main tree, based off of Perl 5.22.1.

clang++

Don't add -shared when the compiler is clang++

Selected Bug Fixes

  • qr/(?[ () ])/ no longer segfaults, giving a syntax error message instead. [perl #125805]

  • Regular expression possessive quantifier v5.20 regression now fixed. qr/PAT{min,max}+/ is supposed to behave identically to qr/(?>PAT{min,max})/. Since v5.20, this didn't work if min and max were equal. [perl #125825]

  • BEGIN <> no longer segfaults and properly produces an error message. [perl #125341]

  • In tr/// an illegal backwards range like tr/\x{101}-\x{100}// was not always detected, giving incorrect results. This is now fixed.

Acknowledgements

Perl 5.23.3 represents approximately 4 weeks of development since Perl 5.23.2 and contains approximately 150,000 lines of changes across 550 files from 30 authors.

Excluding auto-generated files, documentation and release tools, there were approximately 120,000 lines of changes to 410 .pm, .t, .c and .h files.

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 5.23.3:

Aaron Crane, Alexander D'Archangel, Andy Broad, Chris 'BinGOs' Williams, Craig A. Berry, Dan Collins, Daniel Dragan, David Mitchell, Father Chrysostomos, James E Keenan, Jan Dubois, Jarkko Hietaniemi, Jerry D. Hedden, John SJ Anderson, Karen Etheridge, Karl Williamson, Lukas Mai, Matthew Horsfall, Nicolas R., Peter John Acklam, Peter Martini, Ricardo Signes, Shlomi Fish, Steffen Müller, Steve Hay, Sullivan Beck, Thomas Sibley, Todd Rinaldo, Tony Cook, Zachary Storer.

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 https://rt.perl.org/ . 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.