Dave writes: Last month was mainly spent fixing a performance regression in the regex engine on some long strings, whereby anchored patterns and which contained both a fixed and floating substring would sometimes prefer to check whole of the long string for the presence of "floating" rather than do a quick check and reject if "fixed" is isn't at the expected offset. I also did some tweaking of the

Tony writes: 2026/06/01 Monday 3.15 security list #148 1.67 security list #148 4.82 2026/06/02 Tuesday 0.87 atomic stuff on list 0.62 #24447 review discussion, ci results and comment 0.20 #24440 review 0.48 #24440 more review, simple testing and comment 1.17 #24451 review and comment 3.34 2026/06/03 Wednesday 0.27 #24451 review updates 0.27 2026/06/04 Thursday 1.05 #24451 more review,

Paul writes: With no immediate 5.44 out the door, I instead managed to find a bunch of time to get a number of smaller things sorted: 7 av_splice_simple https://github.com/Perl/perl5/pull/24451 2 Perl 5.43.11 release https://metacpan.org/release/PEVANS/perl-5.43.11 0.5 Investigate map EXPR vs BLOCK performance https://github.com/Perl/perl5/issues/24468 5 API type checking https://github.com/Perl/perl5/issues/24469 https://github.com/Perl/perl5/pull/24470 1 PPC thoughts about role method signatures ppc discussion #91 1 Class segfault bugfix https://github.com/Perl/perl5/pull/24518 1

TPRC is happening very soon! If you haven’t registered, it’s not too late! We’d still love to see you in Greenville SC June 25-29; check out https://tprc.us/ for all the info. If you ARE coming, we can’t wait to see you! Join us for an arrival dinner on Thursday evening, June 25. We will meet in the lobby at 5:15 and walk to Chuy’s just across the parking lot. We

Paul writes: May is always a quiet month for me because I my big stage event to look after, but I got a few things done: 4 Experimentation in Object::Pad's version of how to fix the "late added fields" bug https://github.com/Perl/perl5/issues/24393 1 Fix a couple of integer overflow bugs relating to security reports 3 Begin work on the av_splice API https://github.com/Perl/perl5/pull/24451 Total: 8 hours June's focus is getting

Tony writes: 2026/05/04 Monday 1.12 Dave’s C11 _Atomic on p5p: testing, research and respond 0.35 #24402 research and comment 0.38 more _Atomic research and respond some more 1.23 #24284 read, research and comment, work up a patch and push for CI 0.23 selfloader: check CI results and make PR 24404 0.68 more _Atomic: research and respond to leont 0.28 #24166 review discussion,

Dave writes: Last month I continued looking into race conditions in threads and threads::shared. I have now reached the point where the threads-related test suite can run cleanly under 'valgrind --tool=helgrind drd' and the threads-related tests can be repeatedly run in 40 terminals for days without issue. I've pushed the work as GH ##24439. Summary: 20:21 GH #24258 dist/threads/t/free.t: Rare test failure in debugging build on FreeBSD Total: 20:21

TPRC hotel pricing and early-bird pricing end at midnight on May 28th. If you haven’t registered and reserved your hotel room, today is the day! The conference schedule is now published. We have a lineup of great speakers! Check it out at https://tprc.us/tprc-2026-gsp/schedule-2/ We are also now accepting submissions for Lightning Talks, which are talks of no more than 5 minutes. They are a great way to participate, and make

It is just over 30 days before the start of The Perl and Raku Conference. Even if you are a procrastinator, it’s time to make your plans to attend! Early bird pricing for registration will end on May 28. Special conference pricing for our block of hotel rooms also expires on May 28. So it is definitely time to get yourself registered and to get your room reserved. Speakers have

Dave writes: Last month I continued looking into race conditions in threads and threads::shared. I have now reached the point where the threads-related test suite can run cleanly under valgrind --tool=helgrind. But there is still an occasional crash in blocks.t when run repeatedly for many hours in parallel on 20 terminals, which I am currently working on. I'm hopeful that once that is fixed, the branch will be ready to