If you missed Jade Abraham's talk on Chapel and Arkouda at @fosdem.org 2026, the recording is now available! www.youtube.com/watch?v=KEQA... The slides are also available: fosdem.org/2026/schedul...

📢 First Modules Project Technical Steering Committee (TSC) meeting — Feb 18, 5:00 PM CET. Open to everyone! We’ll discuss the roadmap for version 5.7. Details 👉 github.com/envmodules/m...

We just surpassed 300 followers on LinkedIn — if you use LinkedIn, be sure to follow us! www.linkedin.com/company/chap...

For the first time, Chapel will be represented at @fosdem.org! If you will be at FOSDEM 2026, make sure to stop by the HPC, Big Data & Data Science track on Sunday and see Jade Abraham talk about Productive Parallel Computing in Chapel and Arkouda. fosdem.org/2026/schedul...

Do you have a project or research that involves Chapel? Do you want to share a success story or announcement about it with the community? To highlight your work in the Chapel project’s social media channels (like this one), simply fill out this form: forms.gle/HFecAmZukJSU...

Joining the HPSF has been one of the highlights of the year for Chapel, and we're looking forward to what's next!

Read about how Oliver Alvarado Rodriguez used Chapel to implement large-scale exploratory graph analysis for his Ph.D. dissertation in our latest "7 Questions for Chapel Users" interview on the Chapel blog: chapel-lang.org/blog/posts/7...

Interested in language design? Join the Chapel developers in discussing various language features during our public deep dive meeting this Thursday, January 22nd at 10:00am Pacific Time. Find the details at github.com/chapel-lang/...

Intrigued by the High Performance Software Foundation (HPSF, @hpsf.bsky.social) and projects like ours that are members of it? Be sure to check out the following article, which reviews highlights of 2025 and what we’re all working on in the year to come. hpsf.io/blog/2026/ch...

We are proud to be a member of the High Performance Software Foundation (@hpsf.bsky.social) among many great open-source projects!

Today, we are releasing Chapel 2.7, our first new version since joining @hpsf.bsky.social. Highlights include a new flag for vector libraries, improved support for debugging, and advances to the Mason package manager. Learn more about these changes, and others, at: chapel-lang.org/blog/posts/a...

Chapel 2.7 is now live! 💙 This release marks an important milestone for the project, as 2.7 is the first version released since Chapel joined the HPSF as an established project in November. Check out all the highlights in our latest blog post: hpsf.io/blog/2025/ch...

Interested in doing exploratory analytics interactively on data sets that exceed your workstation’s capacity? Learn about Arkouda, and how it compares to Pandas, Dask, and Spark, in this talk and demo given at the @uwescience.bsky.social Data Science Seminar: www.youtube.com/watch?si=c_o...

Can Chapel be used to write transformers? How does the resulting performance compare against C++ or PyTorch? Check out the second and final article in Thitrin Sastarasadhit’s “Transformers from Scratch in Chapel and C++” series on the Chapel blog: chapel-lang.org/blog/posts/t...

"With HPSF, the #HPC community now has what I consider to be the largest and healthiest forum for developing and nurturing open source software that it ever has," says @bradcray.bsky.social in Chapel blog: chapel-lang.org/blog/posts/1...

HPSFCon 2026 focuses on open-source software for HPC, to be held in Chicago IL, March 16–20. If you have Chapel work to show off, or other topics related to HPC SW, community building, etc., submit a talk, poster, or panel discussion by January 11th at: events.linuxfoundation.org/hpsf-confere...

Chapel is at HPE Discover Barcelona this week! Stop by the High Performance Software demo station (#227) on December 3rd and 4th to chat with Daniel Fedorin about Chapel and Arkouda.

With #SC25 wrapped and the U.S. Thanksgiving break behind us, it is time to gear up for the final stretch of 2025. Make sure to recap recent Chapel events featured in the November newsletter. chapel.discourse.group/t/chapel-new...

For those in the Seattle area, Brad Chamberlain will be speaking at the UW Data Science Seminar tomorrow, Dec 2, introducing Arkouda—the Chapel-based framework supporting interactive data science at scale from Python. For details, see: escience.washington.edu/events/uw-da... uwescience.bsky.social

New on the Chapel blog: Read part 1 of Thitrin Sastarasadhit’s experience implementing Transformers from scratch in Chapel and C++, comparing to Python. This work was done as an undergraduate summer internship at University of Tokyo under Kenjiro Taura. chapel-lang.org/blog/posts/t...

If you’re at #SC25 and haven’t had the chance to talk to Oliver or Engin about Chapel and Arkouda yet, be sure to stop by the High Performance Software demo station at the HPE booth while the show room floor is open today or tomorrow!

The French paper magazine @magazineprogrammez.bsky.social has printed an article on GPU programming in Chapel by @endofunctor.bsky.social! Grab a digital copy and check out this and other articles here: www.programmez.com/magazine/art...

We’re so excited to share that HPSF has been recognized as the Best HPC Collaboration in the 22nd edition of the HPCwire Readers’ Choice Awards! 🏆 Thank you to everyone who voted for HPSF. We’re excited for what the future of HPC holds! hpsf.io/blog/2025/hp...

The Chapel team at HPE is proud to announce that we are now an official @hpsf.bsky.social project! For details, please see HPSF’s announcement below:

Chapel’s November Newsletter is out! As with last year’s edition, this one features a special section for events at #SC25. It also has news from ChapelCon ’25, talks, articles, and other community events. chapel.discourse.group/t/chapel-new...

@bradcray.bsky.social will give a talk on Chapel tomorrow (Friday, Nov 7) at @seagl.org — the Seattle GNU/Linux Conference dedicated to open-source software, hardware, and culture. To attend this free conference in person or remotely, please see: seagl.org/attend #SeaGL2025

PSA: The Chapel website has been having some connectivity and security certificate issues over the past day or two. We apologize for the inconvenience and are working with our hosting company to bring it back online and stabilize it.

This week’s episode of HPE’s “Technology Now” podcast focuses on Chapel, featuring a discussion between Brad Chamberlain and Michael Bird! #HPC #OpenSource Head to hpe.lnk.to/Chapelgu to stream it from your favorite podcast platform.

In case you missed it live, Engin Kayraklioglu's talk at LUMI User Coffee Breaks is now available online. Check it out to learn more about how Chapel makes going from programming a laptop to a supercomputer easy. #HPC #OpenSource lumi-supercomputer.github.io/LUMI-trainin...

Should a good parallel language design be minimal in nature? Read @bradcray.bsky.social's take on this question in this month's edition of his "10 Myths About Scalable Parallel Programming Languages" blog series. chapel-lang.org/blog/posts/1...

Have an idea for the new Chapel logo? Make sure to read github.com/chapel-lang/... and submit your proposal by October 21st!

Upcoming talk alert: Join Engin Kayraklioglu during the LUMI User Coffee Break on Oct. 15th 9AM ET. He will cover several applications of Chapel and how its language features allow its users to go from laptops to supercomputers with ease. More info & link: www.lumi-supercomputer.eu/events/userc...

And that's a wrap on ChapelCon '25! Huge thanks to all the presenters for their hard work and the participants for their engagement. You can catch replays of the tutorials and presentations soon! Until next year 👋

ChapelCon ’25 Conference Days start today! Join us for four sessions on Chapel applications and algorithms, and a keynote address from Chris Rackauckas of MIT's JuliaLab. The conference begins at 9AM PT. Register for free here: hpe.zoom.us/j/91206107280

✅ ChapelCon '25 Day 1 is complete! ✅ Thank you to our presenters and participants. See you tomorrow for tutorials and demos on some of Chapel's advanced features. Register here: chapel-lang.org/chapelcon25/

Curious about high performance computing? Emanuele Vitali will be speaking at ChapelCon '25 next week about @lumi-supercomputer.eu, one of the fastest supercomputers in Europe. Register to attend for free: #HPC #Supercomputer www.chapel-lang.org/chapelcon25

ChapelCon 25 is coming up! 🚀 Join the free, online event from October 7–10 to dive into productive parallel programming with Chapel. There’s something for everyone: tutorials, coding sessions, office hours, and talks. Sign up here: hpe.zoom.us/meeting/regi...

ChapelCon '25 is less than 2 weeks away, and the program is ✨live✨! We've got 4 days of jam-packed activities. Check out the program and register to attend here: #HPC #OpenSource chapel-lang.org/chapelcon25/

We recently added a new public weekly meeting on Thursdays at 10am PT for deep-dives and demos. This week, on September 26th, PhD student Shubh Singhal (Habanero Labs/Ga Tech) will share recent aggregation results on ORNL’s Frontier. Join us, or propose a topic, at: github.com/chapel-lang/...

Chapel 2.6 is out! A new DynamicLoading module, enabling a whole new way of interoperating with C, and significantly improved debugging experience are just a few highlights among many! Read the announcement for more chapel-lang.org/blog/posts/a...

Can higher-level languages like Chapel compete with MPI? For the answer, check out the latest installment of Brad Chamberlain's "10 Myths About Scalable Parallel Programming Languages (Redux)" series: #HPC #OpenSource chapel-lang.org/blog/posts/1...

Marjan Asgari’s interview on the “7 Questions for Chapel Users” series is now online! Chapel helped Dr. Asgari parallelize large-scale geospatial tasks and datasets in hydrological modeling. Read her interview to learn more. chapel-lang.org/blog/posts/7...

As part of preparing to join @hpsf.bsky.social, the newly formed Chapel Technical Steering Committee (TSC) is gearing up for its second meeting! This meeting is public and will be held in the weekly Chapel deep-dive slot, Thursday, September 18th at 10am PT. Details at: github.com/chapel-lang/...

Sign up for an office hour session for ChapelCon '25 to meet with a Chapel core developer about topics that interest you! #HPC #OpenSource forms.cloud.microsoft/r/k2z5DuLLUM

Want an intro to the Chapel programming language and why you might choose it over other languages? Check out the latest video in the HiRSE "Summer of Programming Languages" series, also featuring Rust, Julia, Python, C++, Fortran, and R: www.youtube.com/watch?v=Au6d...

ChapelCon '25 is less than a month away! 4 days of tutorials, presentations, and demos for all experience levels. Register for this free, fully virtual event today: #HPC #OpenSource chapel-lang.org/chapelcon25

Can GenAI write your Chapel code for you? It can, and with MCP, it can do an even better job! Read more about using MCP to enhance Claude — or your favorite LLM — with the ability to access documentation, compile, and lint Chapel code in our new blog post: chapel-lang.org/blog/posts/c...

Chapel’s quarterly community newsletter is out! This one has news about ChapelCon, ISC, HPE Discover, IPDPS, and JuliaCon. And, that’s not all! Read on to learn more about what is going on in the Chapel community. #HPC #OpenSource chapel.discourse.group/t/chapel-new...

ChapelCon '25 registration is live! 100% free, 100% virtual, and 100% guaranteed to be a jam-packed week. Sign up here: #HPC #OpenSource hpe.zoom.us/meeting/regi...

Do productive parallel languages like Chapel require magic compilers? Read @bradcray.bsky.social’s take on this question in the latest installment of his “10 Myths about Scalable Parallel Programming Languages” blog series: chapel-lang.org/blog/posts/1... #HPC #OpenSource #LangDev