blogs.perl.org

Quick refresher about Array and List in Perl.Please check out the link for more information: https://theweeklychallenge.org/blog/array-vs-list

All three of us attended.

• Release blocker triage yielded no new blockers. We followed up on the issues we were already tracking.
• The security release made some progress this week, but has been held up by the lack of a perldelta entry.

[P5P posting of this summary]

Hi, you my have noticed our "ad" showing up on on metacpan.org - many thanks to David Cross for helping us out there! You may have to hit "refresh" a few times to see it (but not too many, please! xD)

Now, as much as we'd love to see everyone in Austin, TX on July 3-4, and it's sure to be a lot of fun, the PCC is a hybrid event, meaning we do permit remote attendees and worthy talks.

We already have many exciting and highly technical Perl talks. But we are selfish and we want more. It is okay if you even repeat a talk you've given elsewhere. We offer several levels of talks, including lightning talks, which we all know is how most of us got started. Do not be afraid! :-)

• https://www.meetup.com/austin-perl-mongers/events/305855419/
• https://www.papercall.io/perlcommunity
• https://www.papercall.io/cfps/6270/submissions/new

Over the past year, I’ve been self-studying XS and have now decided to share my learning journey through a series of blog posts. This eighth post introduces you to Perl regular expressions in XS.

Here is the final post about AWS S3 Server Side Encryption where I demo encryption using Customer Key.Please check out the link for more information: https://theweeklychallenge.org/blog/aws-customer-key-encryption

This extended meeting took place between the three of us in person over several days at the PTS 2025 in the beautiful city of Leipzig.

This is a hybrid (in-person and virtual) conference being held in Austin, TX on July 3rd-4th.

Did you miss your chance to speak or have wish to speak at the only available Perl Science Track (and get published in the Science Perl Journal)? Or maybe you just can't get enough Perl this summer??? Submit here ... or get more information on the PCC, including registration, special event registration, and donation links click here. For questions you may email us at science@perlcommunity.org or find us in the Perl Applications & Algorithms discord server.

The following lengths will be accepted for publication and presentation:

• Science Perl Track: Full length paper (10-36 pages, 50 minute speaker slot)
• Science Perl Track: Short paper (2-9 pages, 20 minute speaker slot)
• Science Perl Track: Extended Abstract (1 page, 5 minute lightning talk slot)
• Normal Perl Track (45 minute speaker slot, no paper required)

You may ask, where is the Winter SPJ or videos? We are working on them, promise! (it's a lot of work as some of you know. See also on Perlmonks and r/perlcommunity.

This weekend I was once again privileged to attend the Perl Toolchain Summit (PTS). This year it was held in the lovely city of Leipzig.

The PTS continues to be my favourite technical event of the year. In part this is because I get to meet old friends and make new ones, but it's also because the summit really serves its purpose and I am able to make so much progress on the projects I have which belong in Perl's toolchain ecosystem.

PTS isn't a conference - it's a four-day working meeting. It brings together people working on toolchain projects to solve common problems and push the work forward. I did get a lot of work done, but that's not the main focus, for me anyway. I see it as a time to solve problems and plan the way forward, and for me PTS facilitates that in the most wonderful fashion.

Happy Friday, this is my first hand experience with AWS Bedrock.
Please check out the link for more information:
https://theweeklychallenge.org/blog/aws-bedrock

All three of us attended.

• Release blocker triage continues. Several more blockers have been resolved. We identified no blockers among new tickets but did consider #23346 and may ship it even if we do not consider it a blocker.
• We discussed some feedback regarding the fix for CVE-2025-40909 and requested that the patch be amended. A perldelta entry is also missing before we can ship the security releases.
• We discussed who will do then stable release and when. RC1 will be published by Philippe Bruhat on June 20th.
• We went over the scalar-context pair constructor proposal. Changing the fat arrow in general is out of the question and we don’t think any other proposal is likely to work.
• We went over the 2-arg open proposal. It seems mostly trivial to do and worthwhile as well, but the real complexity is in the implicit open done by readline. We will outline our thoughts on the thread.

[P5P posting of this summary]

Parenting aint easy. Certainly it is often something your kids teach you. Even worse, it often starts with ”<INSERT_KIDS_FRIENDS_NAME>’s dad lets him do <INSERT_CURRENTLY_PROHIBITED_ACTIVITY>”. In this constant battle to shape your offspring into a model citizen, with the values you value, and turning him/her into a self-sustaining organism, one applies tools that enhance particular features, remove the superfluous or the undesirable.

Here we go: Download me

Continue with the blog series, in this post, I am talking about AWS KMS Encryption.
Please check out the link for more information:
https://theweeklychallenge.org/blog/aws-kms-encryption

All of us showed up for a long meeting of identifying release blockers. First we went over the issues and PRs submitted since last week, none of which turned out to be new potential blockers. Then we examined all of the issues and PRs of interest we had previously identified. We applied the “Release Blocker” label where necessary, left comments, and merged a few of the PRs. Out of 20 issues and 11 PRs on our list, we identified 5 issues and 1 PR as blockers, of which the PR and several of the issues all pertain to the same problem with retention of errors on filehandles across I/O operations. This issue needs an informed decision, which we did not have the time for in this meeting, but will pursue next.

Our next meeting will be in person at the PTS.

[P5P posting of this summary]

Yes, this is a Mandelbrot fractal with three heads. No cloning needed, just multiply z to the power of four and proceed as usual. Well all this and so much more contains the latest release of Juliagraph 0.7. Intro here. All I wrote about the Cellgraph and Harmonograph applies again, more features, better controls and ... you can cruise the fractal by mouse.

One of my pleasures in perl is learning the C language again. Something about the perl language makes it easier to write C, but while sharing the same space in my brain.

So how can I write a trivial program to write exactly one GB (2^30) of data to disk?

first in perl- (Of course you prototype in perl!)

But since my c program is cleaner, here’s the C program

AWS S3 Encryption isn't as complex as I thought initially. I had fun playing with it. You can give it a try too. Please check out the link below for more information.
https://theweeklychallenge.org/blog/aws-s3-encryption

Just Aristotle and Graham this week.

• This week CVE-2025-40909 was assigned, for an issue we were already tracking (GH #23010). We coordinated during the week to get a fix merged (GH #23019) before 5.41.13. Thanks to Vincent Lefèvre for the report and Leon Timmermans for the fix. During the meeting we discussed getting out security releases for this soon.
• We caught up on release blocker triage. We are tentatively all clear: all previously identified release blockers are now resolved, and there were no new blockers in recent issues and pull requests – except possibly a 32-bit Windows build issue we are not yet certain about. We are keeping an eye on that.

[P5P posting of this summary]

With the Harmonograph you can create beautiful and individual images within a few clicks. It's painting by pendulum. I already gave here an introduction. So let me just explain what is new: