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...

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

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

Some new packages (2/3): We have updated to ffmpeg 8.0 with the new vulkan decoders/filters enabled. ffmpeg.org/index.html#n...

Some new packages (1/3): mGBA (Game Boy Advance emulator) mgba.io

There was a lightning talk (in German) about MSYS2 at the Grazer Linuxtage #glt25: media.ccc.de/v/glt25-491-...

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...

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)

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)

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.

Getting ready for GCC 15 next week 😊

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...

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.

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

We are moving our MSYS environment closer to Cygwin, see www.msys2.org/news/#2025-0... for details

There will be a short server maintenance tomorrow 🤞 www.msys2.org/news/#2025-0...

It's December, so it's time for our annual build system battle!

Say hi to the first ever Git for Windows version that adds native support for Windows/ARM64! github.com/git-for-wind...

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.

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