Lithium 0.24.4 for Minecraft 26.1.x fixes a client crash.
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 client crash when giving an item to an allay
Lithium 0.24.3 for Minecraft 26.1.x fixes a few issues.
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
- Client side tick optimizations (previously experimental), including optimized biome particle spawning
Fixes
- Fix comparator updates missing for furnaces and brewing stands (since 24w10a / 1.20.5)
- Fix mistake in projectile entity optimization causing looking-at predicates in commands failing
Changes
- Make random_block_ticking and serialization optimizations work together
- LithiumBlockCounter as interface instead of class for mod compatibility
Lithium 0.24.2 for Minecraft 26.1.x fixes a startup issue.
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.
It is highly recommended to update from the previous release.
Changes
- Version lock releases to minor version only
Lithium 0.24.1 for Minecraft 26.1.2 fixes a startup issue.
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.
It is highly recommended to update from the previous release.
Fixes
- Neoforge jar missing common classes
Lithium 0.24.0 is the first release for Minecraft 26.1.2.
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.
It is highly recommended to update from the previous release.
Fixes
- Crash with experimental client brain optimization
Lithium 0.23.0 is the first release for Minecraft 26.1.1.
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.
It is highly recommended to update from the previous release.
Changes
- Switch to 26.1.1
Lithium 0.22.1 for Minecraft 26.1 fixes a critical issue.
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.
It is highly recommended to update from the previous release.
Additions
- Reintroduce brain memory change counting optimization
Fixes
- Fix block counting utility, used for random ticking, oversized block collisions, and pathfinding around special blocks.
Lithium 0.22.0 is the first release for Minecraft 26.1.
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.
Changes
- Update to Minecraft 26.1
- (Temporarily) remove a few optimizations due to the update
Lithium 0.21.4 for Minecraft 1.21.11 adds several optimizations and 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.
Additions
- Optimize nitwit jobsite search (Thanks to jcw780)
- Optimize explosions by caching block states (Based on PR by pwouik)
- Reduce iteration and allocation of block to entity effects
- 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)
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)


