Lithium
No-compromises game logic optimization mod. Well suited for clients and servers of all kinds. Now available for Fabric and NeoForge!
Lithium 0.21.4 for Fabric
release11 марта 2026 г.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 0.21.4 for Neoforge
release11 марта 2026 г.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 Fabric
release11 марта 2026 г.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)
Lithium 0.15.3 for Neoforge
release11 марта 2026 г.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)
Lithium 0.21.3 for Neoforge
release7 февраля 2026 г.Lithium 0.21.3 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 item frames with maps lag when many players are online
- Use chunk aware block search for mob supporting block (Thanks to jcw780)
- Update chunk serialization optimization (Thanks to ishland)
- Allow hoppers to sleep when empty input inventory has comparators
- Sculk sensor, catalyst and shrieker sleeping
Fixes
- Use correct height limit and chunk loading order in portal POI optimization (Thanks to jcw780)
- Wake sleeping hoppers when double chests above them have comparators placed nearby
