Lithium

Lithium 0.25.2 for Minecraft 26.2.x fixes a few issues and improves mod compatibility.

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 various minor non-vanilla behaviors of VoxelShape optimizations
• Fix goat jump target choice optimization possibly breaking and crashing (Thanks to gurrveerrrr)
• Fix collision with hard EnderDragon, EnderDragonPart and NeoForge PartEntity boxes not being possible
• Fix collision with modded spectator EnderDragonPart being possible
• Fix EntityClassGroup entries missing when multiple theoretical entity types per entity class are decided using entity type parameter
• Fix some startup crashes with other mods by using conformVisibility for mixins

Lithium 0.25.2 for Minecraft 26.2.x fixes a few issues and improves mod compatibility.

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 various minor non-vanilla behaviors of VoxelShape optimizations
• Fix goat jump target choice optimization possibly breaking and crashing (Thanks to gurrveerrrr)
• Fix collision with hard EnderDragon, EnderDragonPart and NeoForge PartEntity boxes not being possible
• Fix collision with modded spectator EnderDragonPart being possible
• Fix EntityClassGroup entries missing when multiple theoretical entity types per entity class are decided using entity type parameter
• Fix some startup crashes with other mods by using conformVisibility for mixins

Lithium 0.25.1 is the first release for Minecraft 26.2.x.

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

• Include tag-playing villager baby sensor in adult sensor optimization

Fixes

• Fix explosion no air counting optimization breaking visual explosion size since Lithium 0.24.5
• Fix supporting block movement shortcut not offsetting VoxelShape
• Avoid crashing when modded levels with broken registries are created
• Fix adult sensor optimization only applying to animals that grew up since last reload

Lithium 0.25.1 is the first release for Minecraft 26.2.x.

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

• Include tag-playing villager baby sensor in adult sensor optimization

Fixes

• Fix explosion no air counting optimization breaking visual explosion size since Lithium 0.24.5
• Fix supporting block movement shortcut not offsetting VoxelShape
• Avoid crashing when modded levels with broken registries are created
• Fix adult sensor optimization only applying to animals that grew up since last reload

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

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

Lithium 0.25.0 is the first release for Minecraft 26.2.x.

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

• Reduce allocations in entity explosion exposure raycasts
• Use caching in entity explosion exposure block access
• Add isDescending to lazy shape context optimization

Lithium 0.25.0 is the first release for Minecraft 26.2.x.

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

• Reduce allocations in entity explosion exposure raycasts
• Use caching in entity explosion exposure block access
• Add isDescending to lazy shape context optimization

Lithium 0.24.6 for Minecraft 26.1.x adds new optimizations.

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

• Reduce allocations in entity explosion exposure raycasts
• Use caching in entity explosion exposure block access
• Add isDescending to lazy shape context optimization

Lithium 0.24.6 for Minecraft 26.1.x adds new optimizations.

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

• Reduce allocations in entity explosion exposure raycasts
• Use caching in entity explosion exposure block access
• Add isDescending to lazy shape context optimization

Lithium 0.24.5 for Minecraft 26.1.x adds new optimizations and improves mod compatibility.

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 profiler access
• Optimize explosions with direct-mapped block cache
• Document non-vanilla behavior when explosions skip air
• Avoid counting skipped air when no player is within 64 blocks (= no particles spawned)

Changes

• Move explosion skipping air to separate package.

Fixes

• Fix invalidation issue causing incompatibility with carpet TIS double barrel
• Fix block entity ticking in lazy loaded chunk with coordinates x,z = 0,0 when first ticking block entity is in that chunk

Lithium 0.24.5 for Minecraft 26.1.x adds new optimizations and improves mod compatibility.

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 profiler access
• Optimize explosions with direct-mapped block cache
• Document non-vanilla behavior when explosions skip air
• Avoid counting skipped air when no player is within 64 blocks (= no particles spawned)

Changes

• Move explosion skipping air to separate package.

Fixes

• Fix invalidation issue causing incompatibility with carpet TIS double barrel
• Fix block entity ticking in lazy loaded chunk with coordinates x,z = 0,0 when first ticking block entity is in that chunk

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 0.24.4 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 0.24.3 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 0.24.2 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 0.24.1 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 0.23.0 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 0.22.1 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 0.22.0 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 0.21.4 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)

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 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

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

Lithium 0.15.2 for Minecraft 1.21 and 1.21.1 backports an optimization and 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.

Additions

• Optimize non POI block searches (Thanks to jcw780)

Fixes

• Fix incorrect hopper sleeping with double chests halves read by comparators

Lithium 0.15.2 for Minecraft 1.21 and 1.21.1 backports an optimization and 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.

Additions

• Optimize non POI block searches (Thanks to jcw780)

Fixes

• Fix incorrect hopper sleeping with double chests halves read by comparators

Lithium 0.21.2 for Minecraft 1.21.11 fixes an issue with a villager AI optimization.

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

• Incorrect villager acquire POI optimization breaking raid farms

Lithium 0.21.2 for Minecraft 1.21.11 fixes an issue with a villager AI optimization.

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

• Incorrect villager acquire POI optimization breaking raid farms

Lithium 0.21.1 for Minecraft 1.21.11 fixes a minor 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.

Fixes

• Register happy ghast navigation correctly after growth state change

Lithium 0.21.1 for Minecraft 1.21.11 fixes a minor 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.

Fixes

• Register happy ghast navigation correctly after growth state change

Lithium 0.21.0 is the first release for Minecraft 1.21.11.

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

• Improvements to multiple POI search methods

Fixes

• Find POI in the same order as vanilla in all cases
• Incorrect visual explosion sizes due to multiple explosion rays hitting the same air block multiple times

Lithium 0.21.0 is the first release for Minecraft 1.21.11.

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

• Improvements to multiple POI search methods

Fixes

• Find POI in the same order as vanilla in all cases
• Incorrect visual explosion sizes due to multiple explosion rays hitting the same air block multiple times

Lithium 0.11.4 for Minecraft 1.20.1 is a backport of a few bugfixes.

You can check out all configuration options here.

Full Changelog: https://github.com/CaffeineMC/lithium/compare/mc1.20.1-0.11.3...mc1.20.1-0.11.4

Lithium 0.15.1 for Minecraft 1.21.1 backports several bug fixes, including better compatibility with neoforge.

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 missing initialization of block counting in empty sections
• Mod compatibility between raycast optimization and ponder
• Fix NeoForge chunk load tricks compatibility
• Fix double inventory invalidation in hopper optimization
• Hoppers unsubscribe from block entities and double inventories when invalidated

Lithium 0.15.1 for Minecraft 1.21.1 backports several bug fixes, including better compatibility with neoforge.

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 missing initialization of block counting in empty sections
• Mod compatibility between raycast optimization and ponder
• Fix NeoForge chunk load tricks compatibility
• Fix double inventory invalidation in hopper optimization
• Hoppers unsubscribe from block entities and double inventories when invalidated

Lithium 0.20.1 for Minecraft 1.21.10 includes mod compatibility improvements and a bugfix.

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

• Minor improvement to explosion optimization (Thanks to jcw780)
• Re-enable cached sea level optimization
• Compatibility with NeoForge chunk access during chunk loading
• Improved compatibility with mods that create entities for outside-world display purposes

Fixes

• Detect removal of double inventories hoppers interact with correctly

Lithium 0.20.1 for Minecraft 1.21.10 includes mod compatibility improvements and a bugfix.

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

• Minor improvement to explosion optimization (Thanks to jcw780)
• Re-enable cached sea level optimization
• Compatibility with NeoForge chunk access during chunk loading
• Improved compatibility with mods that create entities for outside-world display purposes

Fixes

• Detect removal of double inventories hoppers interact with correctly

Lithium 0.19.2 for Minecraft 1.21.9 fixes a crash on neoforge.

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 hopper mixin apply failure on neoforge

Lithium 0.19.2 for Minecraft 1.21.9 fixes a crash on neoforge.

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 hopper mixin apply failure on neoforge

Lithium 0.20.0 is the first release for Minecraft 1.21.10.

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.

Lithium 0.20.0 is the first release for Minecraft 1.21.10.

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.

Lithium 0.19.1 for Minecraft 1.21.9 fixes a visual 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.

Fixes

• Fix explosion optimization reducing visual explosion size

Lithium 0.19.1 for Minecraft 1.21.9 fixes a visual 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.

Fixes

• Fix explosion optimization reducing visual explosion size

Lithium 0.19.0 is the first release for Minecraft 1.21.9.

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

• Remove incompatible chunk saving optimization

Lithium 0.19.0 is the first release for Minecraft 1.21.9.

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

• Remove incompatible chunk saving optimization

Lithium 0.18.1 for Minecraft 1.21.8 adds several new optimizations.

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 piglin/hoglin repellent and turtle egg searches (Thanks to jcw780)
• Optimize random ticking
• Optimize precipitation

Changes

• Re-enable previously broken inline world height optimization

Fixes

• Fix missing initialization of block counting in empty sections
• Fix compatibility issue that convert client side mobs to nbt
• Fix incorrect section y coordinates used in experimental optimization (Thanks to jcw780)

Lithium 0.18.1 for Minecraft 1.21.8 adds several new optimizations.

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 piglin/hoglin repellent and turtle egg searches (Thanks to jcw780)
• Optimize random ticking
• Optimize precipitation

Changes

• Re-enable previously broken inline world height optimization

Fixes

• Fix missing initialization of block counting in empty sections
• Fix compatibility issue that convert client side mobs to nbt
• Fix incorrect section y coordinates used in experimental optimization (Thanks to jcw780)

Lithium 0.18.0 is the first release for Minecraft 1.21.8.

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.

Lithium 0.18.0 is the first release for Minecraft 1.21.8.

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.

Lithium 0.18.0 is the first release for Minecraft 1.21.7.

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.

Lithium 0.18.0 is the first release for Minecraft 1.21.7.

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.

Lithium 0.17.0 is the first release for Minecraft 1.21.6.

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.

Lithium 0.17.0 is the first release for Minecraft 1.21.6.

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.

Lithium 0.16.3 for Minecraft 1.21.5 includes two minor optimizations and a mod compatibility improvement.

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

• Reintroduce expiring chunk ticket optimization
• Chest animation sleeping optimization

Changes

• Remove ponder mod compatibility workaround due to fix on their side

Fixes

• Fix wrong position used in fluid flow calculations causing mod compatibility issues

Lithium 0.16.3 for Minecraft 1.21.5 includes two minor optimizations and a mod compatibility improvement.

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

• Reintroduce expiring chunk ticket optimization
• Chest animation sleeping optimization

Changes

• Remove ponder mod compatibility workaround due to fix on their side

Fixes

• Fix wrong position used in fluid flow calculations causing mod compatibility issues

Lithium 0.16.2 for Minecraft 1.21.5 fixes a few issues with experimental settings.

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 various issues and mod compatibility problems with experimental client brain optimization

Additions

• Experimental client biome particle spawning optimization
• Experimental client entity ticking optimizations

Lithium 0.16.2 for Minecraft 1.21.5 fixes a few issues with experimental settings.

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 various issues and mod compatibility problems with experimental client brain optimization

Additions

• Experimental client biome particle spawning optimization
• Experimental client entity ticking optimizations

Lithium 0.15.3 for Minecraft 1.21.4 fixes a few issues with experimental settings.

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 various issues and mod compatibility problems with experimental client brain optimization

Additions

• Experimental client biome particle spawning optimization
• Experimental client entity ticking optimizations

Lithium 0.15.3 for Minecraft 1.21.4 fixes a few issues with experimental settings.

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 various issues and mod compatibility problems with experimental client brain optimization

Additions

• Experimental client biome particle spawning optimization
• Experimental client entity ticking optimizations

Lithium 0.16.1 for Minecraft 1.21.5 fixes a client crash on neoforge and adds a new feature.

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

• Neoforge client crash when joining a server

Additions

• Skip creating brains on the client side

Lithium 0.16.1 for Minecraft 1.21.5 fixes a client crash on neoforge and adds a new feature.

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

• Neoforge client crash when joining a server

Additions

• Skip creating brains on the client side

Lithium 0.15.2 for Minecraft 1.21.4 fixes a client crash on neoforge and adds a new feature.

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

• Neoforge client crash when joining a server

Additions

• Skip creating brains on the client side

Lithium 0.15.2 for Minecraft 1.21.4 fixes a client crash on neoforge and adds a new feature.

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

• Neoforge client crash when joining a server

Additions

• Skip creating brains on the client side

Lithium 0.16.0 is the first release for Minecraft 1.21.5.

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 1.21.5
• Migrate tests to vanilla redstone test system

Lithium 0.16.0 is the first release for Minecraft 1.21.5.

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 1.21.5
• Migrate tests to vanilla redstone test system

Lithium 0.15.1 for Minecraft 1.21.4 includes 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.

Additions

• Include Warden and Creaking in cramming optimization

Fixes

• Fix entity explosion exposure optimization not using the entity collision context
• Fix initialization of cached block info not working on neoforge

Lithium 0.15.1 for Minecraft 1.21.4 includes 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.

Additions

• Include Warden and Creaking in cramming optimization

Fixes

• Fix entity explosion exposure optimization not using the entity collision context
• Fix initialization of cached block info not working on neoforge

Lithium 0.15.0 for Minecraft 1.21.4 includes new optimizations and several bug fixes, including better compatibility with neoforge inventories.

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

• explosion entity raycast optimizations (Thanks to RacoonDog)
• Optimize projectile entity collisions attempts with uncollidable entities
• Sleeping crafter block entity

Fixes

• Fix crash with Create Pondering when entities are pushed by fluids
• Fix crash when placing a block at build limit in the end and attempting to spawn a dragon
• Fix hoppers sleeping even though interaction with neoforge API block inventories is possible
• Fix sleeping hoppers woken up by moving item entities even if blocked with a full block
• Fix broken state of ChunkAwareBlockCollisionSweeper in entity nether portal positioning optimization and with TIS-Carpet

Lithium 0.15.0 for Minecraft 1.21.4 includes new optimizations and several bug fixes, including better compatibility with neoforge inventories.

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

• explosion entity raycast optimizations (Thanks to RacoonDog)
• Optimize projectile entity collisions attempts with uncollidable entities
• Sleeping crafter block entity

Fixes

• Fix crash with Create Pondering when entities are pushed by fluids
• Fix crash when placing a block at build limit in the end and attempting to spawn a dragon
• Fix hoppers sleeping even though interaction with neoforge API block inventories is possible
• Fix sleeping hoppers woken up by moving item entities even if blocked with a full block
• Fix broken state of ChunkAwareBlockCollisionSweeper in entity nether portal positioning optimization and with TIS-Carpet

Lithium 0.15.0 for Minecraft 1.21.1 includes new optimizations and several bug fixes, including better compatibility with neoforge inventories.

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

• explosion entity raycast optimizations (Thanks to RacoonDog)
• Sleeping crafter block entity

Fixes

• Fix crash with Create Pondering when entities are pushed by fluids
• Fix crash when placing a block at build limit in the end and attempting to spawn a dragon
• Fix hoppers sleeping even though interaction with neoforge API block inventories is possible
• Fix sleeping hoppers woken up by moving item entities even if blocked with a full block
• Fix broken state of ChunkAwareBlockCollisionSweeper in entity nether portal positioning optimization and with TIS-Carpet

Lithium 0.15.0 for Minecraft 1.21.1 includes new optimizations and several bug fixes, including better compatibility with neoforge inventories.

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

• explosion entity raycast optimizations (Thanks to RacoonDog)
• Sleeping crafter block entity

Fixes

• Fix crash with Create Pondering when entities are pushed by fluids
• Fix crash when placing a block at build limit in the end and attempting to spawn a dragon
• Fix hoppers sleeping even though interaction with neoforge API block inventories is possible
• Fix sleeping hoppers woken up by moving item entities even if blocked with a full block
• Fix broken state of ChunkAwareBlockCollisionSweeper in entity nether portal positioning optimization and with TIS-Carpet

Lithium 0.14.8 for Minecraft 1.21.1 includes a new optimization, a few bugfixes and improves mod compatibility.

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

• Fast-path exit end portal search by counting nearby bedrock blocks. Reduces lag when placing the last end crystal when respawning the ender dragon by 97%.
• Debug option for detecting invalid chunk data packets

Changes

• Use worlds for thread tests instead of minecraft server to improve compatibility with the worldthreader mod

Fixes

• Fix missing default return value in LithiumHashPalette copies
• Fix incorrect handling of fire, lava and soul fire in experimental block touching optimization
• Fix compatibility with Moonrise

Lithium 0.14.8 for Minecraft 1.21.1 includes a new optimization, a few bugfixes and improves mod compatibility.

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

• Fast-path exit end portal search by counting nearby bedrock blocks. Reduces lag when placing the last end crystal when respawning the ender dragon by 97%.
• Debug option for detecting invalid chunk data packets

Changes

• Use worlds for thread tests instead of minecraft server to improve compatibility with the worldthreader mod

Fixes

• Fix missing default return value in LithiumHashPalette copies
• Fix incorrect handling of fire, lava and soul fire in experimental block touching optimization
• Fix compatibility with Moonrise

Lithium 0.14.8 for Minecraft 1.21.4 includes a new optimization, a few bugfixes and improves mod compatibility.

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

• Fast-path exit end portal search by counting nearby bedrock blocks. Reduces lag when placing the last end crystal when respawning the ender dragon by 97%.
• Debug option for detecting invalid chunk data packets

Changes

• Use worlds for thread tests instead of minecraft server to improve compatibility with the worldthreader mod

Fixes

• Fix missing default return value in LithiumHashPalette copies
• Fix incorrect handling of fire, lava and soul fire in experimental block touching optimization
• Fix compatibility with Moonrise

Lithium 0.14.8 for Minecraft 1.21.4 includes a new optimization, a few bugfixes and improves mod compatibility.

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

• Fast-path exit end portal search by counting nearby bedrock blocks. Reduces lag when placing the last end crystal when respawning the ender dragon by 97%.
• Debug option for detecting invalid chunk data packets

Changes

• Use worlds for thread tests instead of minecraft server to improve compatibility with the worldthreader mod

Fixes

• Fix missing default return value in LithiumHashPalette copies
• Fix incorrect handling of fire, lava and soul fire in experimental block touching optimization
• Fix compatibility with Moonrise

Lithium 0.14.7 for Minecraft 1.21.1 fixes a few mod compatibility 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.

Fixes

• Fix crash with level wrappers from various mods
• Fix crash with moonrise: Set require=0 for ChunkStatusTracker Inject

Lithium 0.14.7 for Minecraft 1.21.1 fixes a few mod compatibility 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.

Fixes

• Fix crash with level wrappers from various mods
• Fix crash with moonrise: Set require=0 for ChunkStatusTracker Inject

Lithium 0.14.7 for Minecraft 1.21.4 fixes a few mod compatibility 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.

Fixes

• Fix crash with level wrappers from various mods
• Fix crash with moonrise: Set require=0 for ChunkStatusTracker Inject

Lithium 0.14.7 for Minecraft 1.21.4 fixes a few mod compatibility 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.

Fixes

• Fix crash with level wrappers from various mods
• Fix crash with moonrise: Set require=0 for ChunkStatusTracker Inject

Lithium 0.14.6 for Minecraft 1.21.1 disables the LithiumHashPalette optimization by default due to many users reporting 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

• Automatic release publishing workflow

Changes

• Disable mixin.chunk.palette (LithiumHashPalette) by default.

Lithium 0.14.6 for Minecraft 1.21.1 disables the LithiumHashPalette optimization by default due to many users reporting 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

• Automatic release publishing workflow

Changes

• Disable mixin.chunk.palette (LithiumHashPalette) by default.

Lithium 0.14.6 for Minecraft 1.21.3 disables the LithiumHashPalette optimization by default due to many users reporting 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

• Automatic release publishing workflow

Changes

• Disable mixin.chunk.palette (LithiumHashPalette) by default.

Lithium 0.14.6 for Minecraft 1.21.3 disables the LithiumHashPalette optimization by default due to many users reporting 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

• Automatic release publishing workflow

Changes

• Disable mixin.chunk.palette (LithiumHashPalette) by default.

Lithium 0.11.3 for Minecraft 1.20.1 is a backport of a few bugfixes and optimzations.

You can check out all configuration options here.

Full Changelog: https://github.com/CaffeineMC/lithium/compare/mc1.20.1-0.11.2...mc1.20.1-0.11.3

Lithium 0.14.6 for Minecraft 1.21.4 disables the LithiumHashPalette optimization by default due to many users reporting 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

• Automatic release publishing workflow

Changes

• Disable mixin.chunk.palette (LithiumHashPalette) by default.

Lithium 0.14.6 for Minecraft 1.21.4 disables the LithiumHashPalette optimization by default due to many users reporting 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

• Automatic release publishing workflow

Changes

• Disable mixin.chunk.palette (LithiumHashPalette) by default.

Lithium 0.14.5 for Minecraft 1.21.4 fixes a server crash that can be caused deliberately by clients. 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

• Replace streams in Tempting Sensor
• Add debug info for LithiumHashPalette

Changes

• Use fast iterator in Brain outdated memory removal
• Handle BlockTag changes for pathnode and block predicates

Fixes

• Fix server crash that can be caused deliberatly by clients (Thanks to Drex for reporting)
• Keep block entity tickers subscribed to world border changes on size-unrelated world border events
• Fix game event dispatcher optimization by using chunk status tracking
• Fix block entity initialization issues
• Neoforge: Avoid initializing hopper's entity tracking during sleeping attempt
• Neoforge: Update hopper optimization for new neoforge version

Lithium 0.14.5 for Minecraft 1.21.4 fixes a server crash that can be caused deliberately by clients. 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

• Replace streams in Tempting Sensor
• Add debug info for LithiumHashPalette

Changes

• Use fast iterator in Brain outdated memory removal
• Handle BlockTag changes for pathnode and block predicates

Fixes

• Fix server crash that can be caused deliberatly by clients (Thanks to Drex for reporting)
• Keep block entity tickers subscribed to world border changes on size-unrelated world border events
• Fix game event dispatcher optimization by using chunk status tracking
• Fix block entity initialization issues
• Neoforge: Avoid initializing hopper's entity tracking during sleeping attempt
• Neoforge: Update hopper optimization for new neoforge version

Lithium 0.14.5 is a backport release for Minecraft 1.21.3 and 1.21.2 which fixes a server crash that can be caused deliberately by clients. 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

• Replace streams in Tempting Sensor
• Add debug info for LithiumHashPalette

Changes

• Use fast iterator in Brain outdated memory removal
• Handle BlockTag changes for pathnode and block predicates

Fixes

• Fix server crash that can be caused deliberatly by clients (Thanks to Drex for reporting)
• Keep block entity tickers subscribed to world border changes on size-unrelated world border events
• Fix game event dispatcher optimization by using chunk status tracking
• Fix block entity initialization issues
• Neoforge: Avoid initializing hopper's entity tracking during sleeping attempt
• Neoforge: Update hopper optimization for new neoforge version

Lithium 0.14.5 is a backport release for Minecraft 1.21.3 and 1.21.2 which fixes a server crash that can be caused deliberately by clients. 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

• Replace streams in Tempting Sensor
• Add debug info for LithiumHashPalette

Changes

• Use fast iterator in Brain outdated memory removal
• Handle BlockTag changes for pathnode and block predicates

Fixes

• Fix server crash that can be caused deliberatly by clients (Thanks to Drex for reporting)
• Keep block entity tickers subscribed to world border changes on size-unrelated world border events
• Fix game event dispatcher optimization by using chunk status tracking
• Fix block entity initialization issues
• Neoforge: Avoid initializing hopper's entity tracking during sleeping attempt
• Neoforge: Update hopper optimization for new neoforge version

Lithium 0.14.5 is a backport release for Minecraft 1.21.1 which fixes a server crash that can be caused deliberately by clients. 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

• Replace streams in Tempting Sensor
• Add debug info for LithiumHashPalette

Changes

• Use fast iterator in Brain outdated memory removal
• Handle BlockTag changes for pathnode and block predicates

Fixes

• Fix server crash that can be caused deliberatly by clients (Thanks to Drex for reporting)
• Keep block entity tickers subscribed to world border changes on size-unrelated world border events
• Fix game event dispatcher optimization by using chunk status tracking
• Fix block entity initialization issues
• Neoforge: Avoid initializing hopper's entity tracking during sleeping attempt
• Neoforge: Update hopper optimization for new neoforge version

Lithium 0.14.5 is a backport release for Minecraft 1.21.1 which fixes a server crash that can be caused deliberately by clients. 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

• Replace streams in Tempting Sensor
• Add debug info for LithiumHashPalette

Changes

• Use fast iterator in Brain outdated memory removal
• Handle BlockTag changes for pathnode and block predicates

Fixes

• Fix server crash that can be caused deliberatly by clients (Thanks to Drex for reporting)
• Keep block entity tickers subscribed to world border changes on size-unrelated world border events
• Fix game event dispatcher optimization by using chunk status tracking
• Fix block entity initialization issues
• Neoforge: Avoid initializing hopper's entity tracking during sleeping attempt
• Neoforge: Update hopper optimization for new neoforge version

Lithium 0.14.4 for Minecraft 1.21.4 fixes a crash when placing redstone dust when using Neoforge. 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

• Fix redstone dust placement crash by adding missing accesstransformer

Lithium 0.14.4 for Minecraft 1.21.3 and 1.21.2 fixes a crash when placing redstone dust when using Neoforge. 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

• Fix redstone dust placement crash by adding missing accesstransformer

Lithium 0.14.3 for Minecraft 1.21.4 improves mod compatibility. 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

• Mod compatibility improvements, mostly on the neoforge platform
• Update to 1.21.4

Lithium 0.14.3 for Minecraft 1.21.4 improves mod compatibility. 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

• Mod compatibility improvements, mostly on the neoforge platform
• Update to 1.21.4

Lithium 0.14.3 for Minecraft 1.21.3 improves mod compatibility. 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

• Mod compatibility improvements, mostly on the neoforge platform

Lithium 0.14.3 for Minecraft 1.21.3 improves mod compatibility. 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

• Mod compatibility improvements, mostly on the neoforge platform

Lithium 0.14.3 for Minecraft 1.21.1 improves mod compatibility. 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

• Mod compatibility improvements, mostly on the neoforge platform

Lithium 0.14.3 for Minecraft 1.21.1 improves mod compatibility. 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

• Mod compatibility improvements, mostly on the neoforge platform

Lithium 0.14.2 for Minecraft 1.21.3 fixes several issues and improves mod compatibility, as multiple compatibility issues came up with the first neoforge release. Make sure to take a backup of your world before using the mod and please report any mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Lithium 0.14.2 for Minecraft 1.21.3 fixes several issues and improves mod compatibility, as multiple compatibility issues came up with the first neoforge release. Make sure to take a backup of your world before using the mod and please report any mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

This is a backport of 0.14.2 for Minecraft 1.21.1. Make sure to take a backup of your world before using the mod and please report any mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

This is a backport of 0.14.2 for Minecraft 1.21.1. Make sure to take a backup of your world before using the mod and please report any mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Lithium now supports both the fabric and neoforge mod loaders. Make sure to take a backup of your world before using the mod and please report any 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 optimizations to 1.21.3
• Improve mod compatibility

Lithium now supports both the fabric and neoforge mod loaders. Make sure to take a backup of your world before using the mod and please report any 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 optimizations to 1.21.3
• Improve mod compatibility

This is the first experimental release for Lithium 0.14.0 which supports both the fabric and neoforge modloader. Make sure to take a backup of your world before using this experimental version. In case you find any bugs, please report them at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Changes

• Adapt almost all optimizations and settings to work with neoforge

This is the first experimental release for Lithium 0.14.0 which supports both the fabric and neoforge modloader. Make sure to take a backup of your world before using this experimental version. In case you find any bugs, please report them at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Changes

• Adapt almost all optimizations and settings to work with neoforge

Lithium 0.13.1 fixes one bug and a compatibility issue with carpet mod.

Fixes

• fix: incompatability with fabric-carpet's scarpet explosion event. (#565) (Thanks to wendavid552)
• fix: disable broken mixin.world.game_events.dispatch optimization by default

Lithium 0.13.1 fixes one bug and a compatibility issue with carpet mod.

Fixes

• fix: incompatability with fabric-carpet's scarpet explosion event. (#565) (Thanks to wendavid552)
• fix: disable broken mixin.world.game_events.dispatch optimization by default

Lithium 0.13.0 is the first release for 1.21.1. It fixes an issue and adds two new optimizations for goats and frogs.

Additions

• new: LongJumpTask random weighted choice optimization
• new: nonvanilla FrogAttackablesSensor optimization (enable with mixin.minimal_nonvanilla=true in the lithium.properties file. The frog target selection will deviate slightly from vanilla behavior.)

Fixes and Changes

• fix: Hoppers not transferring to ChiseledBookshelfBlockEntity when multiple books are in a stack
• change: replace hashmap in brain collection optimization
• change: enable explosion exposure optimizations by default

Lithium 0.13.0 fixes an issue and adds two new optimizations for goats and frogs.

Additions

• new: LongJumpTask random weighted choice optimization
• new: nonvanilla FrogAttackablesSensor optimization (enable with mixin.minimal_nonvanilla=true in the lithium.properties file. The frog target selection will deviate slightly from vanilla behavior.)

Fixes and Changes

• fix: Hoppers not transferring to ChiseledBookshelfBlockEntity when multiple books are in a stack
• change: replace hashmap in brain collection optimization
• change: enable explosion exposure optimizations by default

Lithium 0.12.5 is a bugfix release, fixing a critical hopper minecart issue affecting comparators.

What's Changed

• fix: Item stack resurrection causing incorrect internal state of LithiumStackList

Lithium 0.12.5 is a bugfix release, fixing a critical hopper minecart issue affecting comparators.

What's Changed

• fix: Item stack resurrection causing incorrect internal state of LithiumStackList

Lithium 0.12.7 fixes a few issues like sculk sensors not working after a chunk reload, too few chickens spawning from thrown eggs, fluids flowing towards the wrong hole and hopper minecarts making inventories have incorrect signal strengths.
In case you find any bugs, please report them at the issue tracker. You can check https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21-0.12.7/lithium-mixin-config.md for a description of each optimization and how to disable it.

What's changed

• fix: fluid flow using incorrect direction in bfs
• Affected all fluid flowing (#526)
• fix: Item stack resurrection causing incorrect internal state of LithiumStackList
• Affected comparators after hopper minecarts performed a failed item extraction attempt from the inventory (#524)
• fix: empty space search incorrectly returning space as fully occupied when completely empty
• Affected thrown eggs, entity pose calculations and entity positioning inside nether portals (#525)
• fix: chunk reload causing game event dispatchers to not be registered
• Affected all types of game event listeners (e.g. sculk sensors and catalysts, wardens, allays) (#522)

Lithium 0.12.5 is the first release for 1.21. It includes several new optimizations. For now, some new optimizations are disabled by default, because mod compatibility issues still need to be resolved. Check https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21-0.12.5/lithium-mixin-config.md for a description of each optimization and how to disable them if any issues arise.

Additions

• new: optimized explosion entity exposure (thanks to RacoonDog)
• new: general raycast optimization
• new: empty space search optimization for entity positioning when using nether portal
• new: disable useless nearest item sensor in goats
• new: skip sprinting particle creation logic used by all mobs on server side
• new: fluid flow (nearest hole search) optimization
• new: skip ticking mob equipment when there aren't any tickable enchantments (only soul speed)
• new: avoid creating and dispatching game events (vibrations) to sections without any listeners
• new: skip accessing chunks when trying to dispatch game events

Changes

• change: vanilla's supporting block used for additional entity movement fast- path
• change: track mob equipment using the item stack listening system to optimize checking whether updates must be sent
• change: enable block entity supporting block caching by default

Bugfixes

• fix: wolf armor not updating visually
• fix: use correct entity box for world border collision check
• fix: neighbor path node types initialized to OPEN, allowing mobs to pathfind directly next to dangerous blocks

Lithium 0.12.4 is a bugfix release, fixing a critical pathfinding issue.

What's Changed

• fix: wolf armor not updating visually
• fix: use correct entity box for world border collision check
• fix: neighbor path node types initialized to OPEN, allowing mobs to pathfind directly next to dangerous blocks

Lithium 0.12.4 is a bugfix release, fixing a critical pathfinding issue.

What's Changed

• fix: wolf armor not updating visually
• fix: use correct entity box for world border collision check
• fix: neighbor path node types initialized to OPEN, allowing mobs to pathfind directly next to dangerous blocks

Lithium 0.12.3 is the first release for 1.20.6.
The new minimal_nonvanilla package is introduced, which is meant for optimizations which technically are different from vanilla in an observable way, but do not affect any gameplay or any contraptions. If any negative effect on your contraptions or gameplay is noticeable, please report this to our issue tracker, as this would be considered to be a bug. Check https://github.com/CaffeineMC/lithium-fabric/blob/mc1.20.6-0.12.3/lithium-mixin-config.md for a detailed description of what each package does, and how to disable certain optimizations if needed.

What's Changed

• Replace axis.choose() with switch in VoxelShapeAlignedCuboid
• Move mixin.experimental.chunk_tickets package to minimal_nonvanilla.world.expiring_chunk_tickets
• Move mixin.world.chunk_tickets package to mixin.collections.chunk_tickets

Lithium 0.12.2 is the first release for 1.20.5.

What's Changed

• Mod compatibility improvements contributed by embeddedt, ishland and Steveplays28
• Added missing lithium$ prefixes to mixin methods
• Slight improvements and 1.20.5 adaptation for existing optimizations

Full Changelog: https://github.com/CaffeineMC/lithium-fabric/compare/mc1.20.4-0.12.1...mc1.20.5-0.12.2

Lithium 0.12.1 is the first release for 1.20.4.

You can check out all configuration options at description of all optimizations here.

Full Changelog: https://github.com/CaffeineMC/lithium-fabric/compare/mc1.20.2-0.12.0...mc1.20.4-0.12.1

Additions

• Very experimental item entity optimizations (disabled by default for now)
• Caching of block class analysis, reducing startup times

Lithium 0.12.1 is the first release for 1.20.3.

You can check out all configuration options at description of all optimizations here.

Full Changelog: https://github.com/CaffeineMC/lithium-fabric/compare/mc1.20.2-0.12.0...mc1.20.3-0.12.1

Additions

• Very experimental item entity optimizations (disabled by default for now)
• Caching of block class analysis, reducing startup times

Lithium 0.12.0 is the first release for 1.20.2 and includes a new package for experimental optimizations which are disabled by default.

You can check out all configuration options at description of all optimizations here.

Full Changelog: https://github.com/CaffeineMC/lithium-fabric/compare/mc1.20.1-0.11.2...mc1.20.2-0.12.0

Additions

• new: several optimizations in the experimental package
• new: (experimental) entity optimizations based on block caching
• new: (experimental) iterate entities by chunk for spawning conditions
• new: small ice spreading check optimization
• new: Only purge expiring ChunkTickets

Lithium 0.11.2 for Minecraft 1.20.1 is the same as the previous release, just for 1.20.1 instead of 1.20.

You can check out all configuration options here.

Lithium 0.11.2 is the first release for 1.20 and includes a few mod compatibility improvements and a slight improvement to the nether portal search optimization.
You can check out all configuration options at description of all optimizations here.

Additions

• new: ai.poi.fast_portals: optimized preloading chunks (by Crec0 and 2No2Name)

Fixes

• fix: Use main worker executor for block_tracking instead of common ForkJoinPool (by embeddedt)
• fix: Update listener range on addition of AI goals

Changes

• change: Remove mixin.item (Minecraft 1.20 Incompatibility)

Lithium 0.11.1 fixes a few mod compatibility issues and includes some new performance improvements.
You can check out all configuartion options at description of all optimizations here.

Additions

• new: collections.fluid_submersion: Use faster collection and avoid FluidTag equality tests

Fixes

• fix: several mod compatibility issues

Changes

• change: avoid Stream API in fire/lava check in Entity movement code
• change: split alloc.enum_values package to allow disabling single mixins

Lithium 0.11.1 fixes a few mod compatibility issues and includes some new performance improvements.
You can check out all configuartion options at description of all optimizations here.

Additions

• new: collections.fluid_submersion: Use faster collection and avoid FluidTag equality tests

Fixes

• fix: several mod compatibility issues

Changes

• change: avoid Stream API in fire/lava check in Entity movement code
• change: split alloc.enum_values package to allow disabling single mixins

Lithium 0.11.1 fixes a few mod compatibility issues and includes some new performance improvements.
You can check out all configuartion options at description of all optimizations here.

Additions

• new: collections.fluid_submersion: Use faster collection and avoid FluidTag equality tests

Fixes

• fix: several mod compatibility issues

Changes

• change: avoid Stream API in fire/lava check in Entity movement code
• change: split alloc.enum_values package to allow disabling single mixins

This release is a backport for 1.19.2.

Lithium 0.11.0 fixes a tiny difference in the collision code that was noticeable in some tnt duper designs. Furthermore a few bug fixes and mod compatibility improvements are included. Besides all of that, Lithium now uses a new system internally for the available configuration options. Now you can check out a description of all optimizations here.

Additions

• new: remove vanilla temperature caching
• new: add automatically generated lithium-mixin-config.md
• new: testcase: closing fence gate updates llama pathfinding
• new: Lithium API for hopper-like item transfer cooldown

Fixes

• fix: remove incorrect chunk ticket creation (#449) by ishland*
• fix: block.hopper.worldedit_compat: update hopper caching when placing block entities when world edit is loaded
• fix: block.hopper: broken interaction with modded non-BlockEntity Inventory blocks
• fix: incorrect ordering of collisions causing non-vanilla entity movement behavior
• fix: alloc.blockstate: allow State withTables using non Block/Fluid types
• fix: world.block_entity_ticking.sleeping: crash when /perf command prints position of sleeping block entity

Changes

• change: lithium config mod override parsing can be used with and without mixin. prefix
• change: use @Intrinsic annotation to improve mod compatibility
• change: rename chunk.block_counting to util.block_tracking
• change: entity.collisions.movement: check block below entity before other collisions
• change: rename ai.poi.poi.tasks to ai.poi.tasks
• change: move mixin.world.block_entity_retrieval to mixin.util.block_entity_retrieval
• change: switch from old LithiumConfig system to mixin-config annotation system
• change: add null check in ChunkAwareBlockCollisionSweeper
• change: implement unused onEntryRemoved method in BitSet optimization for POI Storage
• change: entity.collisions.movement: handle external changes to list of collision shapes correctly
• change: disable ai.nearby_entity_tracking because it reduces performance in normal worlds
• change: ItemEntity and Inventory entities only notify movement trackers when hopper optimizations are present
• change: split ai.nearby_entity_tracking into ai.nearby_entity_tracking.goals and util.entity_movement_tracking

Lithium 0.11.0 fixes a tiny difference in the collision code that was noticeable in some tnt duper designs. Furthermore a few bug fixes and mod compatibility improvements are included. Besides all of that, Lithium now uses a new system internally for the available configuration options. Now you can check out a description of all optimizations here.

Additions

• new: remove vanilla temperature caching
• new: add automatically generated lithium-mixin-config.md
• new: testcase: closing fence gate updates llama pathfinding
• new: Lithium API for hopper-like item transfer cooldown

Fixes

• fix: remove incorrect chunk ticket creation (#449) by ishland*
• fix: block.hopper.worldedit_compat: update hopper caching when placing block entities when world edit is loaded
• fix: block.hopper: broken interaction with modded non-BlockEntity Inventory blocks
• fix: incorrect ordering of collisions causing non-vanilla entity movement behavior
• fix: alloc.blockstate: allow State withTables using non Block/Fluid types
• fix: world.block_entity_ticking.sleeping: crash when /perf command prints position of sleeping block entity

Changes

• change: remove redundant FluidState caching in BlockStates that was added to vanilla in 22w42a
• change: lithium config mod override parsing can be used with and without mixin. prefix
• change: use @Intrinsic annotation to improve mod compatibility
• change: rename chunk.block_counting to util.block_tracking
• change: entity.collisions.movement: check block below entity before other collisions
• change: rename ai.poi.poi.tasks to ai.poi.tasks
• change: move mixin.world.block_entity_retrieval to mixin.util.block_entity_retrieval
• change: switch from old LithiumConfig system to mixin-config annotation system
• change: add null check in ChunkAwareBlockCollisionSweeper
• change: implement unused onEntryRemoved method in BitSet optimization for POI Storage
• change: entity.collisions.movement: handle external changes to list of collision shapes correctly
• change: disable ai.nearby_entity_tracking because it reduces performance in normal worlds
• change: ItemEntity and Inventory entities only notify movement trackers when hopper optimizations are present
• change: split ai.nearby_entity_tracking into ai.nearby_entity_tracking.goals and util.entity_movement_tracking

Lithium 0.10.4 fixes a critical issue that causes heightmaps to store wrong values when placing or breaking blocks. It might have affect beacons, mob spawning and more. After fixing the bug the wrong values will still be in the world save. If you notice wrong heightmap behavior in some locations, placing and breaking a normal block (e.g. stone) above the location will update the heightmap to the correct value.

Fixes

• fix: combined_heightmap_update always using y & 15 as height causing incorrect heightmap

You can support me on patreon: https://www.patreon.com/2No2Name

Lithium 0.10.4 fixes a critical issue that causes heightmaps to store wrong values when placing or breaking blocks. It might have affect beacons, mob spawning and more. After fixing the bug the wrong values will still be in the world save. If you notice wrong heightmap behavior in some locations, placing and breaking a normal block (e.g. stone) above the location will update the heightmap to the correct value.

Fixes

• fix: combined_heightmap_update always using y & 15 as height causing incorrect heightmap

You can support me on patreon: https://www.patreon.com/2No2Name

Lithium 0.10.3 is the first release for 1.19.3. Changes from 0.10.2:

Additions

• new: world.combined_heightmap_update: update the four heightmaps together when placing/breaking blocks

Fixes

• fix: block.hopper: hoppers not reacting when placing/breaking inventories without block updates
• fix: block.hopper: hopper not notified about inventory changes anymore after placing comparator next to output inventory of hopper
• fix: world.tick_scheduler: chunk tick scheduler peek returning wrong scheduled tick in some cases leading to wrong ticking order
• fix: world.tick_scheduler: chunk tick scheduler broken after loading a structure block

You can support me on patreon: https://www.patreon.com/2No2Name

Lithium 0.10.3 fixes a few issues and adds a new heightmap optimization, which reduces lag from breaking blocks.

Additions

• new: world.combined_heightmap_update: update the four heightmaps together when placing/breaking blocks

Fixes

• fix: block.hopper: hoppers not reacting when placing/breaking inventories without block updates
• fix: block.hopper: hopper not notified about inventory changes anymore after placing comparator next to output inventory of hopper
• fix: world.tick_scheduler: chunk tick scheduler peek returning wrong scheduled tick in some cases leading to wrong ticking order
• fix: world.tick_scheduler: chunk tick scheduler broken after loading a structure block

You can support me on patreon: https://www.patreon.com/2No2Name

This release is a backport for 1.18.2. Changes from 0.10.2 backport:

Fixes

• fix: block.hopper: hoppers not reacting when placing/breaking inventories without block updates
• fix: block.hopper: hopper not notified about inventory changes anymore after placing comparator next to output inventory of hopper
• fix: world.tick_scheduler: chunk tick scheduler peek returning wrong scheduled tick in some cases leading to wrong ticking order
• fix: world.tick_scheduler: chunk tick scheduler broken after loading a structure block

You can support me on patreon: https://www.patreon.com/2No2Name

This release is a backport for 1.18.2 from Lithium 0.10.2 for 1.19.2. The previous release for 1.18.2 was Lithium 0.7.10 . This backport includes many new optimizations, bugfixes and new bugs. For a list of changes, check out the changelogs of the versions 0.8 and above:

Changelogs

• https://github.com/CaffeineMC/lithium-fabric/releases?q=0.8+OR+0.9+OR+0.10&expanded=true

You can support me on patreon: https://www.patreon.com/2No2Name

Lithium 0.10.2 fixes two issues with the hopper optimizations.

Changes

• change: add note about backups to LithiumConfig

Fixes

• fix: util.inventory_change_listening: ClassCastException with modded inventories or with mixin.block.hopper=false causing inventory deletion
• fix: block.hopper: incompatibility with SidedInventory Hoppers, e.g. from Copper-Hopper mod

You can support me on patreon: https://www.patreon.com/2No2Name

Lithium 0.10.1 fixes a few issues with the previously improved hopper optimizations.

Fixes

• fix: invalidate path node type caching on data pack reload
• fix: block.hopper: multiple hoppers fighting over double inventory causing hoppers to wake each other up
• fix: block.hopper: concurrent modification during iteration causing cache invalidation to be skipped

You can support me on patreon: https://www.patreon.com/2No2Name

Lithium 0.10.0 fixes a few mod compatibility issues and a small memory leak. The Lithium PathNodeType API is removed, as Fabric-API now supports registering Blocks with custom PathNodeTypes.

Changes

• change: ai.pathing: improved PathNode caching, better mod compatibility (fabric-api) and reduced code duplication
• change: simplify locked hopper sleeping mixin
• change: block.hopper: replace effective overwrite redirect with inject

Fixes

• fix: block.hopper: set mixin priority to be before fabric-transfer-api-v1
• fix: hopper sleeping causing fabric api item transfer to be skipped
• fix: use set instead of list to avoid duplicated entries and memory leak with sleeping hoppers

You can support me on patreon: https://www.patreon.com/2No2Name

Lithium 0.9.1 fixes a critical issue with hoppers that stopped reacting to entities after being lazy loaded.

Fixes

fix: sleeping hoppers that become lazy loaded aren't woken up from entity movements (Thanks to QPCrummer)

You can support me on patreon: https://www.patreon.com/2No2Name

Lithium 0.9.0 is a large update that includes new block entity optimizations and fixes several issues. The block entity optimizations improve the performance of hoppers, shulker boxes, campfires, furnaces and brewing stands by skipping their tick when they can't do anything. Futhermore several small behavior changes were fixed and mod compatibility was improved.

Additions

• new: hopper, shulker box, campfire, furnace and brewingstand sleeping
• new: aggressive hopper sleeping with comparator, entity movement and inventory change tracking
• new: avoid sending comparator updates when there is no comparator nearby
• new: optimized hopper minecart item entity search
• new: system for hopper sleeping
• new: block entity ticker caches whether it is inside the world border
• new: use fastutil hashmap as blockentity ticker collection

Changes

• change: avoid implementing LithiumInventory in LockableContainerBlockEntityMixin (mod compatibility)
• change: stationary storage minecarts on rails no longer notify hoppers in every tick
• change: chest boats inside stationary minecarts do not trigger the movement tracking system all the time
• change: replace suffocation overwrite with inject (mod compatibility)

Fixes

• fix: math.sine_lut: slightly off sin() and cos() results
• fix: unpushable_cramming: crash when entity ids are not unique (related to Hypixel/Wynncraft server)
• fix: entity.skip_equipment_change_check: mob crossbow changes not sent to clients
• fix: entity.fast_powder_snow_check: use landing instead of stepping block state
• fix: block.hopper: run loot generation on chest boats when converting to lithium stack list

You can support me on patreon: https://www.patreon.com/2No2Name

Lithium 0.8.3 for 1.19.2 and 1.19.1

Changes

• Update to 1.19.2 and relax version lock to allow 1.19.1

You can support me on patreon: https://www.patreon.com/2No2Name

Lithium 0.8.3 is the second release for 1.19.1! It includes a bugfix too!

Fixes

• fix: update chunk serialization patch to new mappings

You can donate on patreon: https://www.patreon.com/2No2Name

Lithium 0.8.1 is a bugfix release. It includes a fix for the nether portal linking issues near invalid portal POIs.

Fixes

• fix: ai.poi: POI without matching BlockState breaks nearest valid POI search

You can donate on patreon: https://www.patreon.com/2No2Name

Lithium 0.8.0 is our first release for Minecraft 1.19. The release includes a new tick scheduler optimization and updates the optimizations from the previous version.

Additions

• new: world.tick_scheduler optimization

Changes

• change: remove incompatible LongJumpTask optimization
• change: refactor hopper optimization

Fixes

• fix: item stack modification notification now supports item shadowing

You can donate on patreon: https://www.patreon.com/2No2Name

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

This is the first release candidate of Lithium for Minecraft 1.18. It is missing many of the old optimizations which haven't been ported to 1.18 yet. Also parity with changes introduced in Minecraft 1.18 hasn't been well tested.
Expect bugs and backup the world before testing this version.

Additions

Changes

• change: update some patches to Minecraft 1.18
• change: remove lots of patches that are incompatible with Minecraft 1.18

The changelog is available on GitHub right here

This release adds fixes for several issues introduced in previous Lithium versions. Besides a serious chunk save format incompatibility with 1.18 snapshots, a memory leak and a mistake in the hopper logic are fixed. It is recommended that all users upgrade to this release.

Worlds that were used with Lithium will have chunk corruption when upgrading due to the breaking save format changes in the 1.18 snapshots. The datafixer responsible for upgrading to the new format is missing (MC-239610), which leads to chunk corruption and regeneration.

If you have used Lithium in the past and you want upgrade your world to Minecraft 1.18 snapshots, you need to follow these instructions for each world to avoid severe chunk corruption:

Instructions to avoid chunk corruption when updating to 1.18 snapshots:

If you are upgrading a world that has never been used with Lithium, or you are upgrading to a version that includes a fix for MC-239610, you are likely to be unaffected by this issue. If you are unsure, follow the instructions anyway.

• Singleplayer instructions: Start the game with Lithium 0.7.5 installed. Instead of opening your world, select it in the list of worlds, press "Edit", press "Optimize World", then "Create Backup and Load". Wait for the world to load, this will take a long time depending on the world size. After closing the world you can upgrade it to a newer Minecraft version.
• Server Instructions: Make a backup of the world. Start the game with the launch parameter --forceUpgrade=true, e.g. by launching the server.jar with java -jar server.jar --forceUpgrade=true. Wait for the world to load, this will take a long time depending on the world size. After closing the server you can upgrade it to a newer Minecraft version.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.

The changelog is available on GitHub right here.