MSYS2
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msys2org.bsky.social
MSYS2
@msys2org.bsky.social
Software distro and building platform for Windows.

- https://msys2.org / https://github.com/msys2
- Packages: https://packages.msys2.org
- Discord: https://discord.gg/jPQdRdDcT9
Martin Storsjö at WineConf 2025 about the history and development of the llvm-mingw toolchain (github.com/mstorsjo/llv...), which is the basis for the CLANG64/CLANGARM64 environments in MSYS2. The slides are linked in the video description.

www.youtube.com/watch?v=NpxO...
WineConf 2025 - llvm-mingw: How to QA a toolchain on a zero budget – Martin Storsjö
YouTube video by WineHQ
www.youtube.com
September 30, 2025 at 5:07 PM
We've upgraded to LLVM/Clang 21. See releases.llvm.org/21.1.0/tools... and releases.llvm.org/21.1.0/docs/... for the release notes
September 21, 2025 at 8:28 AM
Some new packages (3/3): We have updated to fish v4. fish is our first cygwin package in the repo that is written in rust (!!). fishshell.com
September 7, 2025 at 8:01 PM
Some new packages (2/3): We have updated to ffmpeg 8.0 with the new vulkan decoders/filters enabled. ffmpeg.org/index.html#n...
September 7, 2025 at 8:00 PM
Some new packages (1/3):
mGBA (Game Boy Advance emulator) mgba.io
September 7, 2025 at 7:59 PM
There was a lightning talk (in German) about MSYS2 at the Grazer Linuxtage #glt25: media.ccc.de/v/glt25-491-...
July 17, 2025 at 7:58 PM
Oh, and I forgot to post: We replaced the "x86_64-pc-msys" triplet with "x86_64-pc-cygwin". For more details, see the MSYS2 news entry: www.msys2.org/news/#2025-0...
July 14, 2025 at 9:00 PM
Some notable additions in the last few weeks (2/2):

• libfido2 (FIDO2 client library)
• squashfs-tools (work with Squashfs filesystems)
• samply (Command-line sampling profiler)
• libmem (Advanced Game Hacking Library)
• accesskit-c (Accessibility backend for GTK4)
July 14, 2025 at 9:43 AM
Some notable additions in the last few weeks (1/2):

• cygwin curl gained http3 support
• dxvk (Vulkan-based D3D shim)
• koboldcpp (llama.cpp based KoboldAI UI)
• SBCL (Common Lisp implementation)
• zlib-ng (high-perf zlib replacement)
July 14, 2025 at 9:43 AM
GCC 15.1 is out and in our repos. See gcc.gnu.org/gcc-15/chang... for changes, and gcc.gnu.org/gcc-15/porti... for porting guidelines.
April 27, 2025 at 8:55 AM
Getting ready for GCC 15 next week 😊
April 19, 2025 at 10:53 AM
With us moving to the new hosted ARM64 runners, a look back at our self-hosted ARM64 runner journey: www.msys2.org/news/#2025-0...
April 18, 2025 at 7:26 PM
Native Windows ARM64 runners are now available on GitHub Actions. Just use "runs-on: windows-11-arm" and the setup-msys2 action with "msystem: CLANGARM64" to start building/testing. >90% of MSYS2 packages are available for ARM64, so everything should be good to go.
April 16, 2025 at 5:45 AM
We've upgraded to LLVM/Clang 20. See releases.llvm.org/20.1.0/tools... and releases.llvm.org/20.1.0/docs/... for the release notes
March 7, 2025 at 8:09 AM
We are moving our MSYS environment closer to Cygwin, see www.msys2.org/news/#2025-0... for details
February 14, 2025 at 7:29 PM
There will be a short server maintenance tomorrow 🤞 www.msys2.org/news/#2025-0...
February 14, 2025 at 7:29 PM
It's December, so it's time for our annual build system battle!
December 22, 2024 at 1:30 PM
Reposted by MSYS2
Say hi to the first ever Git for Windows version that adds native support for Windows/ARM64! github.com/git-for-wind...
Releases · git-for-windows/git
A fork of Git containing Windows-specific patches. - git-for-windows/git
github.com
November 25, 2024 at 3:27 PM
Good news, everyone (on Arm)! There was a long-standing issue with rare deadlocks when emulating x64 Cygwin on Arm with fork heavy tasks. Thanks to github.com/jeremyd2019 's work, we've now deployed a workaround - if you experienced these issues, give it another try.
November 16, 2024 at 8:29 PM
We've upgraded to LLVM/Clang 19. See releases.llvm.org/19.1.0/tools... and releases.llvm.org/19.1.0/docs/... for the release notes
November 15, 2024 at 8:30 PM