Lithium (Fabric/NeoForge)

An optimization mod for Minecraft which improves server performance significantly.
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Lithium mc1.21.1-0.15.4 for Fabric

File namelithium-fabric-0.15.4+mc1.21.1.jar
Uploader
2No2Name2No2Name
Uploaded
Jun 27, 2026
Downloads
463.2K
Size
778.8 KB
Mod Loaders
FabricQuilt
File ID
8330364
Type
R
Release
Supported game versions
  • 1.21.1
DownloadInstall Via App

Curse Maven Snippet

Fabric

modImplementation "curse.maven:lithium-360438:8330364"

Quilt

modImplementation "curse.maven:lithium-360438:8330364"

Learn more about Curse Maven

What's new

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

This mod has no additional files