Minecraft 1.21.1 (Fabric)

Java 21. The frozen build retains proven Complementary and Euphoria support. It intentionally excludes newer non-Complementary adapters.

MC FSR 0.3.2 Beta

Release notes

Version 0.3.2 contains seven version-specific Beta builds. The Cleanroom build is excluded. Existing uploads and other files remain unchanged.

FSR 1 remains the default. Temporal upscaling and frame generation are separate opt-in features. Oculus frame generation remains blocked. Unknown or unsafe shader paths use the FSR 1 fallback before projection jitter.

Compatibility and test limits

The evidence index counts 18 exact shader sources, including retained historical passes. Only 8 of 126 full-profile recorded-option cells passed with both temporal methods. Compiled support or a client smoke test does not certify every setting, effect, or profile.

Windows GPU behavior is untested. Root Distant Horizons rendering passed, but clients timed out during shutdown. On newer targets, a loaded Distant Horizons mod causes non-Complementary adapters to use the FSR 1 fallback, even when Distant Horizons rendering is disabled.