Lithium 0.15.4 for Minecraft 1.21 and 1.21.1 backports a few bug fixes.
Make sure to take a backup of your world before using the mod and please report any bugs and mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.
Fixes
- Fix supporting block movement shortcut not offsetting VoxelShape
- Fix double inventory related inventory invalidation issues
- Avoid crashing when modded levels with broken registries are created
- Fix comparator updates missing for furnaces and brewing stands