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
- https://msys2.org / https://github.com/msys2
- Packages: https://packages.msys2.org
- Discord: https://discord.gg/jPQdRdDcT9
Some new packages added in the last month:
- python-pytorch - Python neural networks
- R - Env for statistical computing
- dav2d - AV2 decoder
- abiword - Word processor
- zoitechat - GTK3 IRC client
- sdl3-mixer - SDL3 audio mixer
- uutils-findutils / diffutils / sed - Rust GNU tool rewrites
- python-pytorch - Python neural networks
- R - Env for statistical computing
- dav2d - AV2 decoder
- abiword - Word processor
- zoitechat - GTK3 IRC client
- sdl3-mixer - SDL3 audio mixer
- uutils-findutils / diffutils / sed - Rust GNU tool rewrites
May 18, 2026 at 9:22 PM
Some new packages added in the last month:
- python-pytorch - Python neural networks
- R - Env for statistical computing
- dav2d - AV2 decoder
- abiword - Word processor
- zoitechat - GTK3 IRC client
- sdl3-mixer - SDL3 audio mixer
- uutils-findutils / diffutils / sed - Rust GNU tool rewrites
- python-pytorch - Python neural networks
- R - Env for statistical computing
- dav2d - AV2 decoder
- abiword - Word processor
- zoitechat - GTK3 IRC client
- sdl3-mixer - SDL3 audio mixer
- uutils-findutils / diffutils / sed - Rust GNU tool rewrites
MSYS2 now ships GCC 16 with native Thread Local Storage (TLS) enabled, replacing the old emulated variant (emutls). Some CPython micro benchmarks run 3x faster as a result. Full details: www.
msys2.org/news/#2026-05-11-native-thread-local-storage-tls-with-gcc-16
msys2.org/news/#2026-05-11-native-thread-local-storage-tls-with-gcc-16
May 12, 2026 at 6:36 PM
MSYS2 now ships GCC 16 with native Thread Local Storage (TLS) enabled, replacing the old emulated variant (emutls). Some CPython micro benchmarks run 3x faster as a result. Full details: www.
msys2.org/news/#2026-05-11-native-thread-local-storage-tls-with-gcc-16
msys2.org/news/#2026-05-11-native-thread-local-storage-tls-with-gcc-16
GCC 16.1 is out and in our repos. See gcc.gnu.org/gcc-16/chang... for changes, and gcc.gnu.org/gcc-16/porti... for porting guidelines.
May 1, 2026 at 8:50 AM
GCC 16.1 is out and in our repos. See gcc.gnu.org/gcc-16/chang... for changes, and gcc.gnu.org/gcc-16/porti... for porting guidelines.
Some new applications added in the last month:
- stellarium - planetarium application
- gitu - TUI git client inspired by Magit
- autohotkey - Windows automation scripting
- harper - grammar checker with LSP support
- esbuild - JavaScript bundler
- pinact - pin GitHub Actions to specific versions
- stellarium - planetarium application
- gitu - TUI git client inspired by Magit
- autohotkey - Windows automation scripting
- harper - grammar checker with LSP support
- esbuild - JavaScript bundler
- pinact - pin GitHub Actions to specific versions
April 24, 2026 at 5:27 PM
Some new applications added in the last month:
- stellarium - planetarium application
- gitu - TUI git client inspired by Magit
- autohotkey - Windows automation scripting
- harper - grammar checker with LSP support
- esbuild - JavaScript bundler
- pinact - pin GitHub Actions to specific versions
- stellarium - planetarium application
- gitu - TUI git client inspired by Magit
- autohotkey - Windows automation scripting
- harper - grammar checker with LSP support
- esbuild - JavaScript bundler
- pinact - pin GitHub Actions to specific versions
New mingw-w64 v14 is out: www.mingw-w64.org/changelog/#v...
Changelog - mingw-w64
A complete runtime environment for GCC & LLVM for 32-bit (x86), 64-bit (x64), and ARM64 Windows
www.mingw-w64.org
March 27, 2026 at 11:42 AM
New mingw-w64 v14 is out: www.mingw-w64.org/changelog/#v...
We've upgraded to LLVM/Clang 22. See releases.llvm.org/22.1.0/tools... and releases.llvm.org/22.1.0/docs/... for the release notes
March 25, 2026 at 6:20 PM
We've upgraded to LLVM/Clang 22. See releases.llvm.org/22.1.0/tools... and releases.llvm.org/22.1.0/docs/... for the release notes
Good news: Thanks to the 'Git for Windows' team, we now have native Git packages in our repository, which should provide a similar experience to the official Git builds. Less battle tested and integrated, but please give it a try and let us know of any issues. www.msys2.org/news/#2026-0...
March 25, 2026 at 6:03 PM
Good news: Thanks to the 'Git for Windows' team, we now have native Git packages in our repository, which should provide a similar experience to the official Git builds. Less battle tested and integrated, but please give it a try and let us know of any issues. www.msys2.org/news/#2026-0...
More deprecations: MINGW64, which got replaced by UCRT64 as our default env in 2022, is now deprecated. We'll not add any new packages for it, and will slowly start removing packages here and there. www.msys2.org/news/#2026-0...
MSYS2 - News
Important events happening.
www.msys2.org
March 25, 2026 at 5:49 PM
More deprecations: MINGW64, which got replaced by UCRT64 as our default env in 2022, is now deprecated. We'll not add any new packages for it, and will slowly start removing packages here and there. www.msys2.org/news/#2026-0...
Some deprecations: We no longer support Windows 8.1. It's EOL for 3 years now, and with Firefox dropping support too, now is a good time to say farewell. Things will not stop immediately, but no guarantees.
March 25, 2026 at 5:38 PM
Some deprecations: We no longer support Windows 8.1. It's EOL for 3 years now, and with Firefox dropping support too, now is a good time to say farewell. Things will not stop immediately, but no guarantees.
Haven't posted in while, so some old news: Right after updating to Python 3.13 we updated to 3.14 in January, and it was the smoothest update yet. We also made pip more strict, to not allow installing outside of a venv, to avoid pip messing with pacman managed files. www.msys2.org/news/#2026-0...
MSYS2 - News
Important events happening.
www.msys2.org
March 25, 2026 at 5:30 PM
Haven't posted in while, so some old news: Right after updating to Python 3.13 we updated to 3.14 in January, and it was the smoothest update yet. We also made pip more strict, to not allow installing outside of a venv, to avoid pip messing with pacman managed files. www.msys2.org/news/#2026-0...
We have updated to Python 3.13, see www.msys2.org/news/#2026-0... for more details
January 14, 2026 at 7:08 AM
We have updated to Python 3.13, see www.msys2.org/news/#2026-0... for more details
To mix things up, here are the Python build backends used
December 25, 2025 at 9:58 AM
To mix things up, here are the Python build backends used
I know it's getting boring, but here are the 2025 build system stats
December 25, 2025 at 9:57 AM
I know it's getting boring, but here are the 2025 build system stats
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...
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
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...
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
September 21, 2025 at 8:28 AM
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
September 7, 2025 at 8:01 PM
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...
September 7, 2025 at 8:00 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...
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
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...
July 14, 2025 at 9:00 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...
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)
• 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 (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)
• 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)
• 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
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)
• 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.
April 27, 2025 at 8:55 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.
Getting ready for GCC 15 next week 😊
April 19, 2025 at 10:53 AM
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...
April 18, 2025 at 7:26 PM
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...