You are viewing the version of this documentation from Perl 5.31.0. This is a development release of Perl.



perldelta - what is new for perl v5.30.1


This document describes differences between the 5.30.0 release and the 5.30.1 release.

If you are upgrading from an earlier release such as 5.29.0, first read perl5300delta, which describes differences between 5.29.0 and 5.30.0.

Modules and Pragmata

Updated Modules and Pragmata

Reporting Bugs

If you find what you think is a bug, you might check 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 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:


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


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.