The new McStas release v. 3.3 "next-generation" is built and ready for download!
McStas 3.3 is the fourth official release in the 3.x series, with a modernised code-generator and support for GPU acceleration on NVIDIA cards.
3.3 could have been considered a 'minor' update, but new built-in support for NeXus on all platforms and new SEARCH grammar warrant the .x increment.