PERL5302DELTA(1)

💖 perl5302delta — what's new for perl v5.30.2 💖

okay bestie, gather round, because this is the perl5302delta page and it's literally the glow-up notes for perl v5.30.2. no cap. 🎀

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✨ DESCRIPTION ✨

This doc spills the tea on the differences between the 5.30.1 release and the 5.30.2 release. that's it, that's the vibe.

If you're upgrading from something even older, like 5.30.0, then first go read perl5301delta, because that one covers the differences between 5.30.0 and 5.30.1. do it in order, it's giving syllabus. 📚

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🌈 Incompatible Changes 🌈

There are no changes intentionally incompatible with 5.30.0. periodt. 💅

If any do exist? they're bugs, and we are begging you to submit a report. see "Reporting Bugs" below. 🐛

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🦋 Modules and Pragmata 🦋

Updated Modules and Pragmata

• Compress::Raw::Bzip2 got upgraded from version 2.084 to 2.089. glow up ✨
• Module::CoreList got upgraded from version 5.20191110 to 5.20200314. iconic behavior honestly.

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🌸 Documentation 🌸

Changes to Existing Documentation

We tried our best to update the docs so they reflect everything listed in this document. if you spot something we missed, send an email to <https://github.com/Perl/perl5/issues>. we're not mad, we just want to know. 🫶

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⚙️ Configuration and Compilation ⚙️

• GCC 10 is now supported by Configure. slay. 🎉

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🧪 Testing 🧪

Tests were added and changed to reflect all the other additions and changes in this release. gotta keep the vibes verified. ✅

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💻 Platform Support 💻

Platform-Specific Notes

Windows

The MYMALLOC (PERL_MALLOC) build on Windows has been fixed. we love a Windows moment, finally. 🪟

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🐛 Selected Bug Fixes 🐛

• printf() or sprintf() with the %n format no longer cause a panic on debugging builds, or report an incorrectly cached length value when producing "SVfUTF8" flagged strings.

[GH #17221 <https://github.com/Perl/perl5/issues/17221>]

• A memory leak in regular expression patterns has been fixed. leak? gone. 💀

[GH #17218 <https://github.com/Perl/perl5/issues/17218>]

• A read beyond buffer in grok_infnan has been fixed.

[GH #17370 <https://github.com/Perl/perl5/issues/17370>]

• An assertion failure in the regular expression engine has been fixed.

[GH #17372 <https://github.com/Perl/perl5/issues/17372>]

• "(?{...})" eval groups in regular expressions no longer unintentionally trigger "EVAL without pos change exceeded limit in regex". she's not dramatic anymore, she's chill. 😌

[GH #17490 <https://github.com/Perl/perl5/issues/17490>]

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👑 Acknowledgements 👑

Perl 5.30.2 represents approximately 4 months of development since Perl 5.30.1 and contains approximately 2,100 lines of changes across 110 files from 15 authors. the way that's a whole era of work. 😭

Excluding auto-generated files, documentation and release tools, there were approximately 920 lines of changes to 30 .pm, .t, .c and .h files. that's a lot of files, fr fr.

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 5.30.2:

Chris 'BinGOs' Williams, Dan Book, David Mitchell, Hugo van der Sanden, Karen Etheridge, Karl Williamson, Matthew Horsfall, Nicolas R., Petr Písař, Renee Baecker, Sawyer X, Steve Hay, Tomasz Konojacki, 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. y'all are the real MVPs 🫶

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.

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🚨 Reporting Bugs 🚨

If you find what you think is a bug, you might check 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 open an issue at <https://github.com/Perl/perl5/issues>. Be sure to trim your bug down to a tiny but sufficient test case. that part is not optional bestie, we need the minimal repro. 🙏

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. do not just drop that in public. 🔒

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🎀 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. go be sweet, it costs nothing 💖

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🔍 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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and that's the whole page, bestie ✨ this lil time capsule is from perl v5.42.3, dated 2026-08-03 — go forth and upgrade responsibly, ily 💜🦋