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Chapel Programming Language @chapellanguage.bsky.social · 29/09/2026

The Chapel developer community is pleased to announce the release of Chapel version 2.10 last week, featuring improvements to unions, thrown errors, and public testing in support of community developers! For details, please see the release announcement at chapel-lang.org/blog/posts/a...

A snapshot of the opening paragraphs of the Chapel 2.10 release announcement from the Chapel blog.

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Chapel Programming Language @chapellanguage.bsky.social · 12/08/2026

Read about a port of the 1 Trillion Row Challenge (1TRC) to Arkouda and Chapel done by Hewlett Packard Enterprise summer intern Eric Vo, including his scaling results to 128 compute nodes of HPE Cray EX, now available on the Chapel blog: chapel-lang.org/blog/posts/1... #1BRC

A notional illustration of the trillion row input showing temperature measurements at rows 1 and 1,000,000,000,000.

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Chapel Programming Language @chapellanguage.bsky.social · 18/06/2026

We’ve released Chapel 2.9 today, featuring improvements to the Mason package manager and its ecosystem, dynamic loading of Chapel libraries, and tools for developing Chapel code, along with many other user-driven features and bug fixes. Read about it at: chapel-lang.org/blog/posts/a...

A screenshot of the Chapel 2.9 release announcement, listing highlights and showing the article's table of contents.

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Chapel Programming Language @chapellanguage.bsky.social · 10/06/2026

Last week, Chapel received its 2,000th star on GitHub! Thanks to everyone who shows their support for our parallel language, whether in this little way or bigger ones! Haven’t starred us yet? Help us reach 2100 stars at: github.com/chapel-lang/...

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Chapel Programming Language @chapellanguage.bsky.social · 08/06/2026

The latest issue of the Chapel newsletter is out now, featuring updates on Chapel funding, talks, papers, interviews, the website, and more! Check it out at chapel.discourse.group/t/chapel-new...

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Chapel Programming Language @chapellanguage.bsky.social · 03/06/2026

A Python API for Chapel's compiler is at the core of several of the language's tools. On June 4th, @endofunctor.bsky.social will be talking about this API, chapel-py, during our 10am PT deep dive slot. Tune in to learn more! Find the meeting on the community calendar: chapel-lang.org/calendar/

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Chapel Programming Language @chapellanguage.bsky.social · 20/05/2026

Tomorrow (Thursday, May 21), Brad Chamberlain and Jade Abraham will be giving an overview, update, and demo of Chapel at the Northwest C++ Users’ Group at 7pm PT. Attend in person in Bellevue WA, or online using Microsoft Teams. nwcpp.org/May-2026.html

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Chapel Programming Language @chapellanguage.bsky.social · 21/04/2026

The open-source Chapel programming language project is seeking new sources of funding—or other creative ways of sustaining the project—in order to keep the technology going. For details, please see our announcement on the Chapel blog: chapel-lang.org/blog/posts/c...

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Chapel Programming Language @chapellanguage.bsky.social · 13/04/2026

While HPC hardware has been evolving at a breakneck pace over the past three decades, the languages we use to write HPC code haven’t changed as much. Read @bradcray.bsky.social’s 30-year retrospective, exploring the state of languages for scalable computing: chapel-lang.org/blog/posts/3...

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Chapel Programming Language @chapellanguage.bsky.social · 31/03/2026

If you were unable to attend #HPSFCon this month, slides and video for all of the Chapel-related sessions are now online. Topics include GPU programming, techno-social open-source challenges, user stories, tools, benchmarking, a live demo, and more! chapel-lang.org/presentation...

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Chapel Programming Language @chapellanguage.bsky.social · 27/03/2026

Hear from graduate students Maxime Blanchet, Karim Zayni, Baptiste Arnould (Polytechnique Montréal) about their experiences doing cutting-edge Computational Fluid Dynamics R&D using Chapel in the new installment of our "7 Questions for Chapel Users" interview series: chapel-lang.org/blog/posts/7...

Digital rendering of computational fluid dynamics simulation

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Chapel Programming Language @chapellanguage.bsky.social · 14/03/2026

We’re proud to announce the release of Chapel 2.8! Its highlights include improvements to Chapel’s tools ecosystem, as well as some nice advances in portability and performance. For details, please see: chapel-lang.org/blog/posts/a...

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Chapel Programming Language @chapellanguage.bsky.social · 25/02/2026

Our quarterly newsletter is out! Check it out to catch up on recent developments in the Chapel world, including upcoming events at HPSFCon 2026, an SC25 recap, a blog update, and more... chapel.discourse.group/t/chapel-new...

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Chapel Programming Language @chapellanguage.bsky.social · 17/02/2026

Core Chapel devs are looking to write more Chapel code! Do you have a favorite library you wish Chapel had? What about a bite-sized application you want to see implemented in Chapel? Comment under github.com/chapel-lang/... to tell us about it! #HPC #OpenSource

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Chapel Programming Language @chapellanguage.bsky.social · 04/02/2026

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

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Chapel Programming Language @chapellanguage.bsky.social · 29/01/2026

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...

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Chapel Programming Language @chapellanguage.bsky.social · 23/01/2026

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...

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Chapel Programming Language @chapellanguage.bsky.social · 20/01/2026

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/...

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Chapel Programming Language @chapellanguage.bsky.social · 12/01/2026

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...

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Chapel Programming Language @chapellanguage.bsky.social · 18/12/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 15/12/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 03/12/2025

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.

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Chapel Programming Language @chapellanguage.bsky.social · 02/12/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 02/12/2025

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

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Chapel Programming Language @chapellanguage.bsky.social · 21/11/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 19/11/2025

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!

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Chapel Programming Language @chapellanguage.bsky.social · 19/11/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 17/11/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 20/10/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 17/10/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 14/10/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 09/10/2025

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

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Chapel Programming Language @chapellanguage.bsky.social · 03/10/2025

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

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Chapel Programming Language @chapellanguage.bsky.social · 25/09/2025

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/

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Chapel Programming Language @chapellanguage.bsky.social · 22/09/2025

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/...

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Chapel Programming Language @chapellanguage.bsky.social · 19/09/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 18/09/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 15/09/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 11/09/2025

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

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Chapel Programming Language @chapellanguage.bsky.social · 10/09/2025

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

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Chapel Programming Language @chapellanguage.bsky.social · 03/09/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 25/08/2025

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...

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Chapel Programming Language @chapellanguage.bsky.social · 22/08/2025

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

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Chapel Programming Language @chapellanguage.bsky.social · 22/08/2025

Interested in chatting with a core Chapel developer about a topic? Sign up for an office hour session for ChapelCon '25! forms.cloud.microsoft/r/k2z5DuLLUM

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Chapel Programming Language @chapellanguage.bsky.social · 31/07/2025

Read about how Chapel supports massive combinatorial optimization problems in the latest installment of our “7 Questions for Chapel Users” series where we talk to Tiago Carneiro and Guillaume Helbecque about their work with ChOp. Check it out at: chapel-lang.org/blog/posts/7...

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Chapel Programming Language @chapellanguage.bsky.social · 29/07/2025

Using Chapel for a passion project? Share your progress with the community at ChapelCon '25. Submissions are due Friday, August 8th. Learn more here: chapel-lang.org/chapelcon25

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Chapel Programming Language @chapellanguage.bsky.social · 25/07/2025

This week, we published the fourth article in our “10 Myths About Scalable Parallel Programming Languages” series. This month’s post wrestles with the question “Does a language’s syntax matter?” What do you think? Read on for Brad Chamberlain’s take: chapel-lang.org/blog/posts/1...

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Chapel Programming Language @chapellanguage.bsky.social · 17/07/2025

We recently received our 1,900th star on GitHub! Thanks to all who’ve shown their support for the Chapel programming language in this way and for helping to grow awareness of our open-source community. Haven’t starred us yet? Help us reach 2k at: github.com/chapel-lang/...

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Chapel Programming Language @chapellanguage.bsky.social · 07/07/2025

Working on a project that uses Chapel? We want to hear about it! Submit a talk, demo, poster, or extended abstract about your project to ChapelCon '25, the Chapel Event of the Year. chapel-lang.org/chapelcon25 #HPC #OpenSource

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Chapel Programming Language @chapellanguage.bsky.social · 27/06/2025

In this month's edition of "10 Myths of Scalable Parallel Programming Languages", Brad focuses on the question of the adoptability of new parallel languages and the extent to which extending an existing language might help vs. not. Find it at: chapel-lang.org/blog/posts/1... #ChapelLang #OpenSource

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