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Lithium
Modrinth Mod

Lithium

No-compromises game logic optimization mod, useful for both single-player games and multi-player servers.

Minecraft product info

Important product information

Compatibility, Minecraft versions, loaders, and external source data.

Type

Mod

Access

Free

Latest version

mc26.2-0.25.2-neoforge

Downloads

110 926 594

Loaders / Platforms

fabric neoforge quilt

Minecraft versions

1.16.2 – 1.21.11 26.1 26.1.1 26.1.2 26.2

Categories

optimization

Description

Detailed information

Lithium is a modern, general-purpose optimization mod for Minecraft which works to improve a number of systems (game physics, mob AI, block ticking, etc) with the goal of **not changing any vanilla mechanics**. <br> The mod works **on both the client and server**, and can be installed on servers **without requiring clients to also have the mod** (and vice versa.) <br> For multiplayer servers, administrators can expect a sizeable improvement to tick times, allowing their hardware to support more loaded entities, chunks, and players. Even in single-player, Lithium helps to improve performance by optimizing the internal game server, which is used for "ticking" the world. This can free up your computer's processor to focus on other tasks, resulting in **improved frame rates and increased responsiveness**. <br> The strict goal of maintaining exact behavior with vanilla makes Lithium suitable for almost any Minecraft server running Fabric, even for highly complex gameplay scenarios and creations. In fact, our continued insistence towards not changing vanilla gameplay has even led to the mod being officially allowed in [Minecraft speedrunning](https://www.speedrun.com/mc). <br> ## Installation Make sure you have the latest version of Fabric Loader present and then simply drop the mod into your mods folder. No other mods or additional setup (not even Fabric API!) is required. You do not need to create new worlds in order to take advantage of the mod. <br> While you're at it, you may want to check out [Sodium](https://modrinth.com/mod/sodium), which improves rendering performance. <br> ## Configuration Lithium makes use of an semi-unusual configuration system which allows you to enable or completely disable patches the mod applies. This system allows fine-grained control over what code in Minecraft is modified by Lithium, and as such, can be used to completely eliminate bugs or mod incompatibilities introduced by the mod. <br> For more information, please read [the wiki entry](https://github.com/CaffeineMC/lithium-fabric/wiki/Configuration-File) on modifying your configuration file. <br> Please note: An empty configuration file is *perfectly normal* and just means you want to use the default options, which are already set up out of the box for the best performance the mod can offer. <br> ## Reporting Issues Please use the issue tracker linked at the top of the page to report bugs, crashes, and other issues.

Developer

jellysquid3

Profile and data retrieved from Modrinth

Open on Modrinth

Product gallery

Project images

Screenshots and images from the original Modrinth page.

No images yet

The project author has not added a gallery on Modrinth.

Change log

Project versions

Published versions and original Modrinth files.

mc26.2-0.25.2-neoforge Current Release 10.07.2026

Lithium 0.25.2 for Neoforge

Supported Minecraft versions
26.2
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.2-0.25.2/lithium-mixin-config.md) 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
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0.86 MB

mc26.2-0.25.2-fabric Release 10.07.2026

Lithium 0.25.2 for Fabric

Supported Minecraft versions
26.2
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.2-0.25.2/lithium-mixin-config.md) 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
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0.87 MB

mc26.2-0.25.1-fabric Release 27.06.2026

Lithium 0.25.1 for Fabric

Supported Minecraft versions
26.2
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.2-0.25.1/lithium-mixin-config.md) 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
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0.87 MB

mc26.2-0.25.1-neoforge Release 27.06.2026

Lithium 0.25.1 for Neoforge

Supported Minecraft versions
26.2
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.2-0.25.1/lithium-mixin-config.md) 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
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0.86 MB

mc1.21.1-0.15.4-fabric Release 27.06.2026

Lithium 0.15.4 for Fabric

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.15.4/lithium-mixin-config.md) 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
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0.76 MB

mc1.21.1-0.15.4-neoforge Release 27.06.2026

Lithium 0.15.4 for Neoforge

Supported Minecraft versions
1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.15.4/lithium-mixin-config.md) 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
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0.74 MB

mc26.2-0.25.0-fabric Release 16.06.2026

Lithium 0.25.0 for Fabric

Supported Minecraft versions
26.2
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.2-0.25.0/lithium-mixin-config.md) 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
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0.87 MB

mc26.2-0.25.0-neoforge Release 16.06.2026

Lithium 0.25.0 for Neoforge

Supported Minecraft versions
26.2
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.2-0.25.0/lithium-mixin-config.md) 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
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0.86 MB

mc26.1.2-0.24.6-neoforge Release 16.06.2026

Lithium 0.24.6 for Neoforge

Supported Minecraft versions
26.1 26.1.1 26.1.2
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.6/lithium-mixin-config.md) 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
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0.86 MB

mc26.1.2-0.24.6-fabric Release 16.06.2026

Lithium 0.24.6 for Fabric

Supported Minecraft versions
26.1 26.1.1 26.1.2
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.6/lithium-mixin-config.md) 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
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0.87 MB

mc26.1.2-0.24.5-fabric Release 04.06.2026

Lithium 0.24.5 for Fabric

Supported Minecraft versions
26.1 26.1.1 26.1.2
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.5/lithium-mixin-config.md) 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
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0.86 MB

mc26.1.2-0.24.5-neoforge Release 04.06.2026

Lithium 0.24.5 for Neoforge

Supported Minecraft versions
26.1 26.1.1 26.1.2
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.5/lithium-mixin-config.md) 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
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0.86 MB

mc26.1.2-0.24.4-neoforge Release 28.05.2026

Lithium 0.24.4 for Neoforge

Supported Minecraft versions
26.1 26.1.1 26.1.2
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.4/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Fixes - Fix client crash when giving an item to an allay
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0.85 MB

mc26.1.2-0.24.4-fabric Release 28.05.2026

Lithium 0.24.4 for Fabric

Supported Minecraft versions
26.1 26.1.1 26.1.2
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.4/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Fixes - Fix client crash when giving an item to an allay
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0.85 MB

mc26.1.2-0.24.3-neoforge Release 28.05.2026

Lithium 0.24.3 for Neoforge

Supported Minecraft versions
26.1 26.1.1 26.1.2
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.3/lithium-mixin-config.md) 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
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0.84 MB

mc26.1.2-0.24.3-fabric Release 28.05.2026

Lithium 0.24.3 for Fabric

Supported Minecraft versions
26.1 26.1.1 26.1.2
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.3/lithium-mixin-config.md) 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
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0.85 MB

mc26.1.2-0.24.2-neoforge Release 18.04.2026

Lithium 0.24.2 for Neoforge

Supported Minecraft versions
26.1 26.1.1 26.1.2
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.2/lithium-mixin-config.md) 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
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0.83 MB

mc26.1.2-0.24.2-fabric Release 18.04.2026

Lithium 0.24.2 for Fabric

Supported Minecraft versions
26.1 26.1.1 26.1.2
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.2/lithium-mixin-config.md) 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
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0.84 MB

mc26.1.2-0.24.1-neoforge Release 10.04.2026

Lithium 0.24.1 for Neoforge

Supported Minecraft versions
26.1.2
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.1/lithium-mixin-config.md) 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
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0.84 MB

mc26.1.2-0.24.1-fabric Release 10.04.2026

Lithium 0.24.1 for Fabric

Supported Minecraft versions
26.1.2
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.1/lithium-mixin-config.md) 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
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0.84 MB

mc26.1.2-0.24.0-fabric Release 09.04.2026

Lithium 0.24.0 for Fabric

Supported Minecraft versions
26.1.2
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.2-0.24.0/lithium-mixin-config.md) 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
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0.84 MB

mc26.1.1-0.23.0-neoforge Release 01.04.2026

Lithium 0.23.0 for Neoforge

Supported Minecraft versions
26.1.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.1-0.23.0/lithium-mixin-config.md) 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
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0.83 MB

mc26.1.1-0.23.0-fabric Release 01.04.2026

Lithium 0.23.0 for Fabric

Supported Minecraft versions
26.1.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1.1-0.23.0/lithium-mixin-config.md) 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
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0.84 MB

mc26.1-0.22.1-neoforge Release 26.03.2026

Lithium 0.22.1 for Neoforge

Supported Minecraft versions
26.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1-0.22.1/lithium-mixin-config.md) 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.
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0.83 MB

mc26.1-0.22.1-fabric Release 26.03.2026

Lithium 0.22.1 for Fabric

Supported Minecraft versions
26.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1-0.22.1/lithium-mixin-config.md) 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.
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0.84 MB

mc26.1-0.22.0-fabric Alpha 24.03.2026

Lithium 0.22.0 for Fabric

Supported Minecraft versions
26.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1-0.22.0/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Update to Minecraft 26.1 - (Temporarily) remove a few optimizations due to the update
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0.83 MB

mc26.1-0.22.0-neoforge Alpha 24.03.2026

Lithium 0.22.0 for Neoforge

Supported Minecraft versions
26.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc26.1-0.22.0/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Update to Minecraft 26.1 - (Temporarily) remove a few optimizations due to the update
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0.83 MB

mc1.21.11-0.21.4-fabric Release 11.03.2026

Lithium 0.21.4 for Fabric

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.11-0.21.4/lithium-mixin-config.md) 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)
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0.86 MB

mc1.21.11-0.21.4-neoforge Release 11.03.2026

Lithium 0.21.4 for Neoforge

Supported Minecraft versions
1.21.11
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.11-0.21.4/lithium-mixin-config.md) 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)
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0.84 MB

mc1.21.1-0.15.3-fabric Release 10.03.2026

Lithium 0.15.3 for Fabric

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.15.3/lithium-mixin-config.md) 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)
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0.76 MB

mc1.21.1-0.15.3-neoforge Release 10.03.2026

Lithium 0.15.3 for Neoforge

Supported Minecraft versions
1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.15.3/lithium-mixin-config.md) 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)
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0.74 MB

mc1.21.11-0.21.3-neoforge Release 07.02.2026

Lithium 0.21.3 for Neoforge

Supported Minecraft versions
1.21.11
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.11-0.21.3/lithium-mixin-config.md) 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
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0.83 MB

mc1.21.11-0.21.3-fabric Release 07.02.2026

Lithium 0.21.3 for Fabric

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.11-0.21.3/lithium-mixin-config.md) 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
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0.85 MB

mc1.21.1-0.15.2-neoforge Release 05.02.2026

Lithium 0.15.2 for Neoforge

Supported Minecraft versions
1.21 1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.15.2/lithium-mixin-config.md) 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
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0.74 MB

mc1.21.1-0.15.2-fabric Release 05.02.2026

Lithium 0.15.2 for Fabric

Supported Minecraft versions
1.21 1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.15.2/lithium-mixin-config.md) 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
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0.76 MB

mc1.21.11-0.21.2-neoforge Release 24.12.2025

Lithium 0.21.2 for Neoforge

Supported Minecraft versions
1.21.11
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.11-0.21.2/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Fixes - Incorrect villager acquire POI optimization breaking raid farms
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0.8 MB

mc1.21.11-0.21.2-fabric Release 24.12.2025

Lithium 0.21.2 for Fabric

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.11-0.21.2/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Fixes - Incorrect villager acquire POI optimization breaking raid farms
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0.82 MB

mc1.21.11-0.21.1-fabric Release 12.12.2025

Lithium 0.21.1 for Fabric

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.11-0.21.1/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Fixes - Register happy ghast navigation correctly after growth state change
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0.82 MB

mc1.21.11-0.21.1-neoforge Release 12.12.2025

Lithium 0.21.1 for Neoforge

Supported Minecraft versions
1.21.11
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.11-0.21.1/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Fixes - Register happy ghast navigation correctly after growth state change
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0.8 MB

mc1.21.11-0.21.0-fabric Release 09.12.2025

Lithium 0.21.0 for Fabric

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.11-0.21.0/lithium-mixin-config.md) 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
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0.82 MB

mc1.21.11-0.21.0-neoforge Release 09.12.2025

Lithium 0.21.0 for Neoforge

Supported Minecraft versions
1.21.11
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.11-0.21.0/lithium-mixin-config.md) 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
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0.8 MB

mc1.20.1-0.11.4-fabric Release 27.11.2025

Lithium 0.11.4 for Fabric

Supported Minecraft versions
1.20.1
Loaders / Platforms
fabric quilt
Show changes
Lithium 0.11.4 for Minecraft 1.20.1 is a backport of a few bugfixes. You can check out all configuration options [here](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.20.1-0.11.4/lithium-mixin-config.md). **Full Changelog**: https://github.com/CaffeineMC/lithium/compare/mc1.20.1-0.11.3...mc1.20.1-0.11.4
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0.66 MB

mc1.21.1-0.15.1-fabric Release 21.11.2025

Lithium 0.15.1 for Fabric

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.15.1/lithium-mixin-config.md) 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
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0.74 MB

mc1.21.1-0.15.1-neoforge Release 21.11.2025

Lithium 0.15.1 for Neoforge

Supported Minecraft versions
1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.15.1/lithium-mixin-config.md) 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
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0.72 MB

mc1.21.10-0.20.1-fabric Release 13.11.2025

Lithium 0.20.1 for Fabric

Supported Minecraft versions
1.21.10
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.10-0.20.1/lithium-mixin-config.md) 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
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0.8 MB

mc1.21.10-0.20.1-neoforge Release 13.11.2025

Lithium 0.20.1 for Neoforge

Supported Minecraft versions
1.21.10
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.10-0.20.1/lithium-mixin-config.md) 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
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0.78 MB

mc1.21.9-0.19.2-neoforge Release 17.10.2025

Lithium 0.19.2 for Neoforge

Supported Minecraft versions
1.21.9
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.9-0.19.2/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Fixes - Fix hopper mixin apply failure on neoforge
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0.77 MB

mc1.21.9-0.19.2-fabric Release 17.10.2025

Lithium 0.19.2 for Fabric

Supported Minecraft versions
1.21.9
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.9-0.19.2/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Fixes - Fix hopper mixin apply failure on neoforge
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0.79 MB

mc1.21.10-0.20.0-fabric Release 07.10.2025

Lithium 0.20.0 for Fabric

Supported Minecraft versions
1.21.10
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.10-0.20.0/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.79 MB

mc1.21.10-0.20.0-neoforge Release 07.10.2025

Lithium 0.20.0 for Neoforge

Supported Minecraft versions
1.21.10
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.10-0.20.0/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.77 MB

mc1.21.9-0.19.1-fabric Release 02.10.2025

Lithium 0.19.1 for Fabric

Supported Minecraft versions
1.21.9
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.9-0.19.1/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Fixes - Fix explosion optimization reducing visual explosion size
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0.79 MB

mc1.21.9-0.19.1-neoforge Release 02.10.2025

Lithium 0.19.1 for Neoforge

Supported Minecraft versions
1.21.9
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.9-0.19.1/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Fixes - Fix explosion optimization reducing visual explosion size
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0.77 MB

mc1.21.9-0.19.0-fabric Release 30.09.2025

Lithium 0.19.0 for Fabric

Supported Minecraft versions
1.21.9
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.9-0.19.0/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Remove incompatible chunk saving optimization
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0.79 MB

mc1.21.9-0.19.0-neoforge Release 30.09.2025

Lithium 0.19.0 for Neoforge

Supported Minecraft versions
1.21.9
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.9-0.19.0/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Remove incompatible chunk saving optimization
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0.77 MB

mc1.21.8-0.18.1-neoforge Release 30.09.2025

Lithium 0.18.1 for Neoforge

Supported Minecraft versions
1.21.8
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.8-0.18.1/lithium-mixin-config.md) 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)
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0.78 MB

mc1.21.8-0.18.1-fabric Release 30.09.2025

Lithium 0.18.1 for Fabric

Supported Minecraft versions
1.21.8
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.8-0.18.1/lithium-mixin-config.md) 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)
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0.8 MB

mc1.21.8-0.18.0-neoforge Release 17.07.2025

Lithium 0.18.0 for Neoforge

Supported Minecraft versions
1.21.8
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.8-0.18.0/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.73 MB

mc1.21.8-0.18.0-fabric Release 17.07.2025

Lithium 0.18.0 for Fabric

Supported Minecraft versions
1.21.8
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.8-0.18.0/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.76 MB

mc1.21.7-0.18.0-fabric Release 30.06.2025

Lithium 0.18.0 for Fabric

Supported Minecraft versions
1.21.7
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.7-0.18.0/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.76 MB

mc1.21.7-0.18.0-neoforge Release 30.06.2025

Lithium 0.18.0 for Neoforge

Supported Minecraft versions
1.21.7
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.7-0.18.0/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.73 MB

mc1.21.6-0.17.0-neoforge Release 17.06.2025

Lithium 0.17.0 for Neoforge

Supported Minecraft versions
1.21.6
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.6-0.17.0/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.73 MB

mc1.21.6-0.17.0-fabric Release 17.06.2025

Lithium 0.17.0 for Fabric

Supported Minecraft versions
1.21.6
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.6-0.17.0/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.76 MB

mc1.21.5-0.16.3-fabric Release 16.06.2025

Lithium 0.16.3 for Fabric

Supported Minecraft versions
1.21.5
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.5-0.16.3/lithium-mixin-config.md) 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
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0.75 MB

mc1.21.5-0.16.3-neoforge Release 16.06.2025

Lithium 0.16.3 for Neoforge

Supported Minecraft versions
1.21.5
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.5-0.16.3/lithium-mixin-config.md) 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
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0.73 MB

mc1.21.5-0.16.2-fabric Release 09.04.2025

Lithium 0.16.2 for Fabric

Supported Minecraft versions
1.21.5
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.5-0.16.2/lithium-mixin-config.md) 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
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0.75 MB

mc1.21.5-0.16.2-neoforge Release 09.04.2025

Lithium 0.16.2 for Neoforge

Supported Minecraft versions
1.21.5
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.5-0.16.2/lithium-mixin-config.md) 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
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0.73 MB

mc1.21.4-0.15.3-neoforge Release 09.04.2025

Lithium 0.15.3 for Neoforge

Supported Minecraft versions
1.21.4
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.15.3/lithium-mixin-config.md) 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
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0.74 MB

mc1.21.4-0.15.3-fabric Release 09.04.2025

Lithium 0.15.3 for Fabric

Supported Minecraft versions
1.21.4
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.15.3/lithium-mixin-config.md) 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
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0.76 MB

mc1.21.5-0.16.1-neoforge Release 06.04.2025

Lithium 0.16.1 for Neoforge

Supported Minecraft versions
1.21.5
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.5-0.16.1/lithium-mixin-config.md) 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
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0.71 MB

mc1.21.5-0.16.1-fabric Release 06.04.2025

Lithium 0.16.1 for Fabric

Supported Minecraft versions
1.21.5
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.5-0.16.1/lithium-mixin-config.md) 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
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0.73 MB

mc1.21.4-0.15.2-fabric Release 06.04.2025

Lithium 0.15.2 for Fabric

Supported Minecraft versions
1.21.4
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.15.2/lithium-mixin-config.md) 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
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0.75 MB

mc1.21.4-0.15.2-neoforge Release 06.04.2025

Lithium 0.15.2 for Neoforge

Supported Minecraft versions
1.21.4
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.15.2/lithium-mixin-config.md) 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
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0.73 MB

mc1.21.5-0.16.0-neoforge Release 25.03.2025

Lithium 0.16.0 for Neoforge

Supported Minecraft versions
1.21.5
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.5-0.16.0/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Update to 1.21.5 - Migrate tests to vanilla redstone test system
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0.71 MB

mc1.21.5-0.16.0-fabric Release 25.03.2025

Lithium 0.16.0 for Fabric

Supported Minecraft versions
1.21.5
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.5-0.16.0/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Update to 1.21.5 - Migrate tests to vanilla redstone test system
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0.73 MB

mc1.21.4-0.15.1-fabric Release 22.03.2025

Lithium 0.15.1 for Fabric

Supported Minecraft versions
1.21.4
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.15.1/lithium-mixin-config.md) 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
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0.74 MB

mc1.21.4-0.15.1-neoforge Release 22.03.2025

Lithium 0.15.1 for Neoforge

Supported Minecraft versions
1.21.4
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.15.1/lithium-mixin-config.md) 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
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0.72 MB

mc1.21.4-0.15.0-neoforge Release 10.03.2025

Lithium 0.15.0 for Neoforge

Supported Minecraft versions
1.21.4
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.15.0/lithium-mixin-config.md) 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
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0.72 MB

mc1.21.4-0.15.0-fabric Release 10.03.2025

Lithium 0.15.0 for Fabric

Supported Minecraft versions
1.21.4
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.15.0/lithium-mixin-config.md) 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
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0.74 MB

mc1.21.1-0.15.0-neoforge Release 10.03.2025

Lithium 0.15.0 for Neoforge

Supported Minecraft versions
1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.15.0/lithium-mixin-config.md) 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
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0.71 MB

mc1.21.1-0.15.0-fabric Release 10.03.2025

Lithium 0.15.0 for Fabric

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.15.0/lithium-mixin-config.md) 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
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0.74 MB

mc1.21.1-0.14.8-neoforge Release 20.02.2025

Lithium 0.14.8 for Neoforge

Supported Minecraft versions
1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.14.8/lithium-mixin-config.md) 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
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0.71 MB

mc1.21.1-0.14.8-fabric Release 20.02.2025

Lithium 0.14.8 for Fabric

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.14.8/lithium-mixin-config.md) 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
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0.73 MB

mc1.21.4-0.14.8-neoforge Release 20.02.2025

Lithium 0.14.8 for Neoforge

Supported Minecraft versions
1.21.4
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.14.8/lithium-mixin-config.md) 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
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0.7 MB

mc1.21.4-0.14.8-fabric Release 20.02.2025

Lithium 0.14.8 for Fabric

Supported Minecraft versions
1.21.4
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.14.8/lithium-mixin-config.md) 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
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0.73 MB

mc1.21.1-0.14.7-fabric Release 20.01.2025

Lithium 0.14.7 for Fabric

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.14.7/lithium-mixin-config.md) 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
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0.71 MB

mc1.21.1-0.14.7-neoforge Release 20.01.2025

Lithium 0.14.7 for Neoforge

Supported Minecraft versions
1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.14.7/lithium-mixin-config.md) 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
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0.69 MB

mc1.21.4-0.14.7-fabric Release 20.01.2025

Lithium 0.14.7 for Fabric

Supported Minecraft versions
1.21.4
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.14.7/lithium-mixin-config.md) 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
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0.71 MB

mc1.21.4-0.14.7-neoforge Release 20.01.2025

Lithium 0.14.7 for Neoforge

Supported Minecraft versions
1.21.4
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.14.7/lithium-mixin-config.md) 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
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0.69 MB

mc1.21.1-0.14.6-fabric Release 18.01.2025

Lithium 0.14.6 for Fabric

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.14.6/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Additions - Automatic release publishing workflow ## Changes - Disable `mixin.chunk.palette` (LithiumHashPalette) by default.
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0.71 MB

mc1.21.1-0.14.6-neoforge Release 18.01.2025

Lithium 0.14.6 for Neoforge

Supported Minecraft versions
1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.1-0.14.6/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Additions - Automatic release publishing workflow ## Changes - Disable `mixin.chunk.palette` (LithiumHashPalette) by default.
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0.69 MB

mc1.21.3-0.14.6-fabric Release 18.01.2025

Lithium 0.14.6 for Fabric

Supported Minecraft versions
1.21.2 1.21.3
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.3-0.14.6/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Additions - Automatic release publishing workflow ## Changes - Disable `mixin.chunk.palette` (LithiumHashPalette) by default.
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0.71 MB

mc1.21.3-0.14.6-neoforge Release 18.01.2025

Lithium 0.14.6 for Neoforge

Supported Minecraft versions
1.21.2 1.21.3
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.3-0.14.6/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Additions - Automatic release publishing workflow ## Changes - Disable `mixin.chunk.palette` (LithiumHashPalette) by default.
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0.69 MB

mc1.20.1-0.11.3-fabric Release 17.01.2025

Lithium 0.11.3 for Fabric

Supported Minecraft versions
1.20.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.20.1-0.11.3/lithium-mixin-config.md). **Full Changelog**: https://github.com/CaffeineMC/lithium/compare/mc1.20.1-0.11.2...mc1.20.1-0.11.3
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0.67 MB

mc1.21.4-0.14.6-fabric Release 17.01.2025

Lithium 0.14.6 for Fabric

Supported Minecraft versions
1.21.4
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.14.6/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Additions - Automatic release publishing workflow ## Changes - Disable `mixin.chunk.palette` (LithiumHashPalette) by default.
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0.71 MB

mc1.21.4-0.14.6-neoforge Release 17.01.2025

Lithium 0.14.6 for Neoforge

Supported Minecraft versions
1.21.4
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium/blob/mc1.21.4-0.14.6/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Additions - Automatic release publishing workflow ## Changes - Disable `mixin.chunk.palette` (LithiumHashPalette) by default.
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0.69 MB

mc1.21.4-0.14.5-neoforge Release 14.01.2025

Lithium 0.14.5 for Neoforge

Supported Minecraft versions
1.21.4
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.4-0.14.5/lithium-mixin-config.md) 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
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0.69 MB

mc1.21.4-0.14.5-fabric Release 14.01.2025

Lithium 0.14.5 for Fabric

Supported Minecraft versions
1.21.4
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.4-0.14.5/lithium-mixin-config.md) 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
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0.71 MB

mc1.21.3-0.14.5-neoforge Release 14.01.2025

Lithium 0.14.5 for Neoforge

Supported Minecraft versions
1.21.2 1.21.3
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.3-0.14.5/lithium-mixin-config.md) 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
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0.69 MB

mc1.21.3-0.14.5-fabric Release 14.01.2025

Lithium 0.14.5 for Fabric

Supported Minecraft versions
1.21.2 1.21.3
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.3-0.14.5/lithium-mixin-config.md) 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
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0.71 MB

mc1.21.1-0.14.5-neoforge Release 14.01.2025

Lithium 0.14.5 for Neoforge

Supported Minecraft versions
1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.1-0.14.5/lithium-mixin-config.md) 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
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0.69 MB

mc1.21.1-0.14.5-fabric Release 14.01.2025

Lithium 0.14.5 for Fabric

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.1-0.14.5/lithium-mixin-config.md) 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
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0.71 MB

mc1.21.4-0.14.4-neoforge Release 04.12.2024

Lithium 0.14.4 for Neoforge

Supported Minecraft versions
1.21.4
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.4-0.14.4/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Fix redstone dust placement crash by adding missing accesstransformer
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0.68 MB

mc1.21.3-0.14.4-neoforge Release 04.12.2024

Lithium 0.14.4 for Neoforge

Supported Minecraft versions
1.21.2 1.21.3
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.4-0.14.4/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Fix redstone dust placement crash by adding missing accesstransformer
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0.68 MB

mc1.21.4-0.14.3-fabric Release 03.12.2024

Lithium 0.14.3 for Fabric

Supported Minecraft versions
1.21.4
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.4-0.14.3/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Mod compatibility improvements, mostly on the neoforge platform - Update to 1.21.4
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0.71 MB

mc1.21.4-0.14.3-neoforge Alpha 03.12.2024

Lithium 0.14.3 for Neoforge

Supported Minecraft versions
1.21.4
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.4-0.14.3/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Mod compatibility improvements, mostly on the neoforge platform - Update to 1.21.4
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0.68 MB

mc1.21.3-0.14.3-fabric Release 03.12.2024

Lithium 0.14.3 for Fabric

Supported Minecraft versions
1.21.2 1.21.3
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.3-0.14.3/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Mod compatibility improvements, mostly on the neoforge platform
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0.71 MB

mc1.21.3-0.14.3-neoforge Alpha 03.12.2024

Lithium 0.14.3 for Neoforge

Supported Minecraft versions
1.21.2 1.21.3
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.3-0.14.3/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Mod compatibility improvements, mostly on the neoforge platform
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0.68 MB

mc1.21.1-0.14.3-neoforge Release 03.12.2024

Lithium 0.14.3 for Neoforge

Supported Minecraft versions
1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.1-0.14.3/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Mod compatibility improvements, mostly on the neoforge platform
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0.69 MB

mc1.21.1-0.14.3-fabric Release 03.12.2024

Lithium 0.14.3 for Fabric

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.1-0.14.3/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Mod compatibility improvements, mostly on the neoforge platform
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0.71 MB

mc1.21.3-0.14.2-neoforge Alpha 16.11.2024

Lithium 0.14.2 for Neoforge

Supported Minecraft versions
1.21.2 1.21.3
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.3-0.14.2/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.68 MB

mc1.21.3-0.14.2-fabric Release 16.11.2024

Lithium 0.14.2 for Fabric

Supported Minecraft versions
1.21.2 1.21.3
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.3-0.14.2/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.71 MB

mc1.21.1-0.14.2-fabric Release 16.11.2024

Lithium 0.14.2 for Fabric

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.1-0.14.2/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.71 MB

mc1.21.1-0.14.2-neoforge Release 16.11.2024

Lithium 0.14.2 for Neoforge

Supported Minecraft versions
1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.21.1-0.14.2/lithium-mixin-config.md) and how to disable it when encountering a problem.
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0.69 MB

mc1.21.3-0.14.1-fabric Release 10.11.2024

Lithium 0.14.1 for Fabric

Supported Minecraft versions
1.21.2 1.21.3
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Update optimizations to 1.21.3 - Improve mod compatibility
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0.7 MB

mc1.21.3-0.14.1-neoforge Release 10.11.2024

Lithium 0.14.1 for Neoforge

Supported Minecraft versions
1.21.2 1.21.3
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Update optimizations to 1.21.3 - Improve mod compatibility
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0.68 MB

mc1.21.1-0.14.0-beta.1-neoforge Beta 16.10.2024

Lithium 0.14.0 (Beta 1) for Neoforge

Supported Minecraft versions
1.21.1
Loaders / Platforms
neoforge
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/b39a6b67ba3af96dacca00660c7aa0d56ed7888f/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Adapt almost all optimizations and settings to work with neoforge
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0.68 MB

mc1.21.1-0.14.0-beta.1-fabric Beta 16.10.2024

Lithium 0.14.0 (Beta 1) for Fabric

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). You can check the [description of each optimization](https://github.com/CaffeineMC/lithium-fabric/blob/b39a6b67ba3af96dacca00660c7aa0d56ed7888f/lithium-mixin-config.md) and how to disable it when encountering a problem. ## Changes - Adapt almost all optimizations and settings to work with neoforge
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0.73 MB

mc1.21.1-0.13.1 Release 20.09.2024

Lithium 0.13.1

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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
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0.72 MB

mc1.21-0.13.1 Release 20.09.2024

Lithium 0.13.1

Supported Minecraft versions
1.21
Loaders / Platforms
fabric quilt
Show changes
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
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0.72 MB

mc1.21.1-0.13.0 Release 11.08.2024

Lithium 0.13.0

Supported Minecraft versions
1.21.1
Loaders / Platforms
fabric quilt
Show changes
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
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0.72 MB

mc1.21-0.13.0 Release 11.08.2024

Lithium 0.13.0

Supported Minecraft versions
1.21
Loaders / Platforms
fabric quilt
Show changes
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
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0.72 MB

mc1.20.6-0.12.5 Release 20.06.2024

Lithium 0.12.5

Supported Minecraft versions
1.20.6
Loaders / Platforms
fabric quilt
Show changes
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
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0.65 MB

mc1.20.5-0.12.5 Release 20.06.2024

Lithium 0.12.5

Supported Minecraft versions
1.20.5
Loaders / Platforms
fabric quilt
Show changes
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
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0.65 MB

mc1.21-0.12.7 Release 20.06.2024

Lithium 0.12.7

Supported Minecraft versions
1.21
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/issues). 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)
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0.71 MB

mc1.21-0.12.5 Beta 16.06.2024

Lithium 0.12.5

Supported Minecraft versions
1.21
Loaders / Platforms
fabric quilt
Show changes
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
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0.7 MB

mc1.20.6-0.12.4 Release 16.06.2024

Lithium 0.12.4

Supported Minecraft versions
1.20.6
Loaders / Platforms
fabric quilt
Show changes
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
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0.65 MB

mc1.20.5-0.12.4 Release 16.06.2024

Lithium 0.12.4

Supported Minecraft versions
1.20.5
Loaders / Platforms
fabric quilt
Show changes
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
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0.65 MB

mc1.20.6-0.12.3 Release 29.04.2024

Lithium 0.12.3

Supported Minecraft versions
1.20.6
Loaders / Platforms
fabric quilt
Show changes
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
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0.65 MB

mc1.20.5-0.12.2 Release 29.04.2024

Lithium 0.12.2

Supported Minecraft versions
1.20.5
Loaders / Platforms
fabric quilt
Show changes
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
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0.65 MB

mc1.20.4-0.12.1 Release 20.12.2023

Lithium 0.12.1

Supported Minecraft versions
1.20.4
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.20.4-0.12.1/lithium-mixin-config.md). **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
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0.68 MB

mc1.20.3-0.12.1 Release 20.12.2023

Lithium 0.12.1

Supported Minecraft versions
1.20.3
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.20.3-0.12.1/lithium-mixin-config.md). **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
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0.68 MB

mc1.20.2-0.12.0 Release 23.09.2023

Lithium 0.12.0

Supported Minecraft versions
1.20.2
Loaders / Platforms
fabric quilt
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.20.2-0.12.0/lithium-mixin-config.md). **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
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0.66 MB

mc1.20.1-0.11.2 Release 12.06.2023

Lithium 0.11.2

Supported Minecraft versions
1.20.1
Loaders / Platforms
fabric
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.20.1-0.11.2/lithium-mixin-config.md).
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0.62 MB

mc1.20-0.11.2 Release 09.06.2023

Lithium 0.11.2

Supported Minecraft versions
1.20
Loaders / Platforms
fabric
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.20-0.11.2/lithium-mixin-config.md). ## 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)
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0.62 MB

mc1.19.4-0.11.1 Release 15.03.2023

Lithium 0.11.1

Supported Minecraft versions
1.19.4
Loaders / Platforms
fabric
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.19.4-0.11.1/lithium-mixin-config.md). ## 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
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0.61 MB

mc1.19.3-0.11.1 Release 15.03.2023

Lithium 0.11.1

Supported Minecraft versions
1.19.3
Loaders / Platforms
fabric
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.19.3-0.11.1/lithium-mixin-config.md). ## 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
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0.61 MB

mc1.19.2-0.11.1 Release 15.03.2023

Lithium 0.11.1

Supported Minecraft versions
1.19.2
Loaders / Platforms
fabric
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.19.2-0.11.1/lithium-mixin-config.md). ## 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
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0.61 MB

mc1.19.2-0.11.0 Release 07.03.2023

Lithium 0.11.0

Supported Minecraft versions
1.19.2
Loaders / Platforms
fabric
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.19.2-0.11.0/lithium-mixin-config.md). ## 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
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0.6 MB

mc1.19.3-0.11.0 Release 04.03.2023

Lithium 0.11.0

Supported Minecraft versions
1.19.3
Loaders / Platforms
fabric
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/blob/mc1.19.3-0.11.0/lithium-mixin-config.md). ## 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
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0.6 MB

mc1.19.3-0.10.4 Release 08.12.2022

Lithium 0.10.4

Supported Minecraft versions
1.19.3
Loaders / Platforms
fabric
Show changes
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
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0.53 MB

mc1.19.2-0.10.4 Release 08.12.2022

Lithium 0.10.4

Supported Minecraft versions
1.19.2
Loaders / Platforms
fabric
Show changes
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
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0.53 MB

mc1.19.3-0.10.3 Beta 07.12.2022

Lithium 0.10.3

Supported Minecraft versions
1.19.3
Loaders / Platforms
fabric
Show changes
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
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0.53 MB

mc1.19.2-0.10.3 Beta 07.12.2022

Lithium 0.10.3

Supported Minecraft versions
1.19.2
Loaders / Platforms
fabric
Show changes
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
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0.53 MB

mc1.18.2-0.10.3 Release 07.12.2022

Lithium 0.10.3

Supported Minecraft versions
1.18.2
Loaders / Platforms
fabric
Show changes
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
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0.53 MB

mc1.18.2-0.10.2 Release 11.11.2022

Lithium 0.10.2

Supported Minecraft versions
1.18.2
Loaders / Platforms
fabric
Show changes
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
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0.52 MB

mc1.19.2-0.10.2 Release 10.11.2022

Lithium 0.10.2

Supported Minecraft versions
1.19.2
Loaders / Platforms
fabric
Show changes
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
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0.52 MB

mc1.19.2-0.10.1 Release 29.10.2022

Lithium 0.10.1

Supported Minecraft versions
1.19.2
Loaders / Platforms
fabric
Show changes
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
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0.52 MB

mc1.19.2-0.10.0 Release 19.10.2022

Lithium 0.10.0

Supported Minecraft versions
1.19.2
Loaders / Platforms
fabric
Show changes
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
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0.52 MB

mc1.19.2-0.9.1 Release 12.10.2022

Lithium 0.9.1

Supported Minecraft versions
1.19.2
Loaders / Platforms
fabric
Show changes
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
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0.51 MB

mc1.19.2-0.9.0 Release 12.10.2022

Lithium 0.9.0

Supported Minecraft versions
1.19.2
Loaders / Platforms
fabric
Show changes
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
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0.51 MB

mc1.19.2-0.8.3 Release 07.08.2022

Lithium 0.8.3

Supported Minecraft versions
1.19.1 1.19.2
Loaders / Platforms
fabric
Show changes
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
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0.45 MB

mc1.19.1-0.8.3 Release 29.07.2022

Lithium 0.8.3

Supported Minecraft versions
1.19.1
Loaders / Platforms
fabric
Show changes
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
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0.45 MB

mc1.19-0.8.1 Release 09.07.2022

Lithium 0.8.1

Supported Minecraft versions
1.19
Loaders / Platforms
fabric
Show changes
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
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0.45 MB

mc1.19-0.8.0 Release 09.06.2022

Lithium 0.8.0

Supported Minecraft versions
1.19
Loaders / Platforms
fabric
Show changes
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
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0.45 MB

mc1.18.2-0.7.10 Release 22.05.2022

Lithium 0.7.10

Supported Minecraft versions
1.18.2
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.18.2-0.7.10).
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0.44 MB

mc1.18.2-0.7.9 Release 02.03.2022

Lithium 0.7.9

Supported Minecraft versions
1.18.2
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.18.2-0.7.9).
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0.42 MB

mc1.18.1-0.7.8 Release 23.02.2022

Lithium 0.7.8

Supported Minecraft versions
1.18.1
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.18.1-0.7.8).
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0.43 MB

mc1.18.1-0.7.7 Release 02.01.2022

Lithium 0.7.7

Supported Minecraft versions
1.18.1
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.18.1-0.7.7).
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0.37 MB

mc1.18.1-0.7.6 Release 13.12.2021

Lithium 0.7.6

Supported Minecraft versions
1.18.1
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.18.1-0.7.6).
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0.37 MB

mc1.18-0.7.6-rc1 Beta 05.12.2021

Lithium 0.7.6-rc1

Supported Minecraft versions
1.18
Loaders / Platforms
fabric
Show changes
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](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.18-0.7.6-rc1)
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0.37 MB

mc1.17.1-0.7.5 Release 05.11.2021

Lithium 0.7.5

Supported Minecraft versions
1.17 1.17.1
Loaders / Platforms
fabric
Show changes
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)](https://bugs.mojang.com/browse/MC-239610), which leads to [chunk corruption and regeneration](https://bugs.mojang.com/secure/attachment/452741/2021-10-16_20.55.34.png). 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](https://bugs.mojang.com/browse/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](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.17.1-0.7.5).
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0.42 MB

mc1.17.1-0.7.4 Release 25.08.2021

Lithium 0.7.4

Supported Minecraft versions
1.17 1.17.1
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.17.1-0.7.4).
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0.42 MB

mc1.17.1-0.7.3 Release 07.07.2021

Lithium 0.7.3

Supported Minecraft versions
1.17 1.17.1
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.17.1-0.7.3).
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0.39 MB

mc1.17-0.7.2 Release 21.06.2021

Lithium 0.7.2

Supported Minecraft versions
1.17
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.17-0.7.2).
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0.39 MB

mc1.17-0.7.1 Release 16.06.2021

Lithium 0.7.1

Supported Minecraft versions
1.17
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.17-0.7.1).
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0.39 MB

mc1.16.5-0.6.6 Release 09.06.2021

Lithium 0.6.6

Supported Minecraft versions
1.16.2 1.16.3 1.16.4 1.16.5
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/jellysquid3/lithium-fabric/releases/tag/mc1.16.5-0.6.6).
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0.33 MB

mc1.17-0.7.0 Beta 08.06.2021

Lithium 0.7.0

Supported Minecraft versions
1.17
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/CaffeineMC/lithium-fabric/releases/tag/mc1.17-0.7.0).
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0.38 MB

mc1.16.5-0.6.5 Release 08.06.2021

Lithium 0.6.5

Supported Minecraft versions
1.16.2 1.16.3 1.16.4 1.16.5
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/jellysquid3/lithium-fabric/releases/tag/mc1.16.5-0.6.5).
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0.33 MB

mc1.16.5-0.6.4 Release 24.02.2021

Lithium 0.6.4

Supported Minecraft versions
1.16.2 1.16.3 1.16.4 1.16.5
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/jellysquid3/lithium-fabric/releases/tag/mc1.16.5-0.6.4).
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0.33 MB

mc1.16.5-0.6.3 Release 02.02.2021

Lithium 0.6.3

Supported Minecraft versions
1.16.2 1.16.3 1.16.4 1.16.5
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/jellysquid3/lithium-fabric/releases/tag/mc1.16.5-0.6.3).
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0.3 MB

mc1.16.5-0.6.1 Release 29.01.2021

Lithium 0.6.1

Supported Minecraft versions
1.16.2 1.16.3 1.16.4 1.16.5
Loaders / Platforms
fabric
Show changes
The changelog is available on GitHub right [here](https://github.com/jellysquid3/lithium-fabric/releases/tag/mc1.16.5-0.6.1).
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0.29 MB

mc1.16.4-0.6.0 Release 03.01.2021

Lithium 0.6.0

Supported Minecraft versions
1.16.4
Loaders / Platforms
fabric
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0.27 MB