This is a release candidate for Unreal Tournament v469c. This version is stable, but still has a few issues that we intend to fix before the final release.
Notable changes since Unreal Tournament v469b include:
- Native support for Apple Silicon macs
- 64-bit Linux support
- Revamped in-game server browser
- Major localization updates
- Improved XOpenGLDrv performance
- Tons of stability, physics, audio, and rendering fixes
A full change log is available here.