You are viewing the version of this documentation from Perl 5.39.6. This is a development version of Perl.

CONTENTS

NAME

perl5395delta - what is new for perl v5.39.5

DESCRIPTION

This document describes differences between the 5.39.4 release and the 5.39.5 release.

If you are upgrading from an earlier release such as 5.39.3, first read perl5394delta, which describes differences between 5.39.3 and 5.39.4.

Notice

glibc has an undocumented feature to return the current locale when using the POSIX 2008 locale API. This feature is now experimentally enabled by default so as to see if there are problems with it. This enabling expires in v5.39.10. In the meantime, if you run into problems, open a bug ticket and Configure with -Accflags=-DNO_NL_LOCALE_NAME to turn it off.

Deprecations

Modules and Pragmata

Updated Modules and Pragmata

Documentation

Changes to Existing Documentation

We have attempted to update the documentation to reflect the changes listed in this document. If you find any we have missed, open an issue at https://github.com/Perl/perl5/issues.

Additionally, the following selected changes have been made:

perlop

Testing

Tests were added and changed to reflect the other additions and changes in this release. Furthermore, these significant changes were made:

Platform Support

Platform-Specific Notes

Oracle Developer Studio (Solaris, Oracle Linux)

Due to an apparent code generation bug, the default optimization level for the Oracle Developer Studio (formerly Sun Workshop) compiler is now -xO1. [GH #21535]

Windows

Enable copysign, signbit, acosh, asinh, atanh, exp2, tgamma in the bundled configuration used for MSVC. [GH #21610]

The build process no longer supports Visual Studio 2013. This was failing to build at a very basic level and there has been no reports of such failures. [GH #21624]

Errata From Previous Releases

Acknowledgements

Perl 5.39.5 represents approximately 4 weeks of development since Perl 5.39.4 and contains approximately 12,000 lines of changes across 330 files from 17 authors.

Excluding auto-generated files, documentation and release tools, there were approximately 8,200 lines of changes to 270 .pm, .t, .c and .h files.

Perl continues to flourish into its fourth decade thanks to a vibrant community of users and developers. The following people are known to have contributed the improvements that became Perl 5.39.5:

Chad Granum, Dan Kogai, E. Choroba, Elvin Aslanov, Graham Knop, Hugo van der Sanden, James E Keenan, Johan Vromans, Karen Etheridge, Karl Williamson, Leon Timmermans, Lukas Mai, Marco Fontani, Paul Evans, Peter John Acklam, Tony Cook, 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 perl bug database at https://github.com/Perl/perl5/issues. There may also be information at http://www.perl.org/, the Perl Home Page.

If you believe you have an unreported bug, please open an issue at https://github.com/Perl/perl5/issues. Be sure to trim your bug down to a tiny but sufficient test case.

If the bug you are reporting has security implications which make it inappropriate to send to a public issue tracker, then see "SECURITY VULNERABILITY CONTACT INFORMATION" in perlsec for details of how to report the issue.

Give Thanks

If you wish to thank the Perl 5 Porters for the work we had done in Perl 5, you can do so by running the perlthanks program:

perlthanks

This will send an email to the Perl 5 Porters list with your show of thanks.

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.