Lithium 0.15.3 for Neoforge

Changelog

Lithium 0.15.3 for Minecraft 1.21 and 1.21.1 backports an optimization and a bug fix.

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.

Additions

Add missing palette crash recovery attempt
Use cached false values for fluid hole search

Fixes

Fix negative indices caused by byte to int cast (crash with modded fluids https://github.com/CaffeineMC/lithium/issues/719)

Files

lithium-neoforge-0.15.3+mc1.21.1.jar(756 KiB) Primary Download

Metadata

Release channel

Release

Version number

mc1.21.1-0.15.3-neoforge

Loaders

NeoForge

Game versions

1.21.1

Downloads

28579

Publication date

March 10, 2026 at 10:02 PM

Publisher

2No2Name

Project Lead

Version ID

External resources

Issues Source Discord Patreon

Project members

CaffeineMC

Organization

jellysquid3

Original Author

2No2Name

Project Lead

Technical information

License

LGPL-3.0-only

Client side

optional

Server side

optional

Project ID