Hi ruby-core, it seems like sending an email from our company's address to this ruby-core mailing list breaks its DKIM signatures, which result in being classified as spam. So I'm forwarding Maxime's email to this from my personal email in case you missed it. Enjoy! ---------- Forwarded message --------- Hello everyone, In the last year we’ve ported YJIT to Rust, and YJIT also now supports Arm64 CPUs (Mac M1/M2, AWS Graviton, Raspberry Pi & more) in addition to x86-64 on Mac/Linux and BSD. I’m writing this because, as we near the 3.2 release 🎁, I really hope that YJIT will be available ✨ as part of precompiled Ruby packages and Ruby binaries, as much as possible. In order to build CRuby with YJIT enabled, on a supported platform, you should only need to install rustc >= 1.58.0 before running the CRuby ./configure script. That is all. The configure script should auto-detect rustc and enable building YJIT. Some instructions for installing rustc on various platforms: # Cross-platform setup script for the Rust toolchain $ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh or # On Debian-based distros: $ sudo apt install rustc You can check that your ruby binary has been built with YJIT by running: # should contain the string +YJIT $ ruby --yjit -v Feel free to reach out if you encounter any issues. Happy Holidays! 🎅🎄🎁 - Maxime & the YJIT team