PaperFixes
🟡 Updated this year⚠️ Install Order · 2 steps
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Preview
🔍 Analysis
- 👍 0.1% endorsement rate
- 🏆 #122 of 326 forge mods in this game by downloads
📋 About This Mod
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# PaperFixes
A collection of bug and performance fixes from CraftBukkit, Spigot, and Paper in a Forge mod.\ This is a performance mod, and bugs and incompatibilities could occur. Please open a GitHub issue if you find any.
## Current Fixes and Features
Bugfixes
avoidItemMergeForFullStacks - Skips merging checks for full item stacks before bounding box check.clearPacketQueue - Clears player packet queue on disconnect to prevent memory leaks.explosionsIgnoreDeadEntities - Excludes dead entities and untargetable players from explosions.fixMc54738 (MC-54738) - Limits biome weight variable to fix terrain spikes.fixMc80966 (MC-80966) - Ensures empty subchunks send data to clients.fixMc98153 (MC-98153) - Prevents rubber-banding and suffocation in nether portals.fixMc133373 (MC-133373) - Resets NaN attribute values.fixShulkerDispenseCrash - Prevents crash when placing non-empty shulker box via dispenser at height limit.fixShulkerDupe - Fixes duplication from shulker box tile entity not being removed.fixWaterMobSpawnCheck - Ensures water mobs spawn inside water with space.dontOffloadBeaconColorUpdate - Avoids unnecessary thread hopping for beacon updates.handleNullTileCrashes - Logs null tile entities instead of causing more problems.removeInvalidMobSpawners - Removes broken mob spawners that don't exist.sortEnchantments - Sorts enchantments by ID to ensure identical items are treated the same.
Client
cacheLastChunk - Because Minecraft accesses the same chunk from the chunk provider multiple times in one frame, we can cache the last one accessed. This doesn’t usually have a big effect on the client, but flying around and loading chunks can be a little faster when many operations are done per chunk.
fastWorldBorder - Disabled on the client (including the internal server) by default because animations for border movement don’t work correctly, causing the border to snap to the end position when the countdown ends. If you don’t care about this, you can enable world border caching for the client and internal server.
Features
spawnChunkGamerule - Enables the spawnChunkRadius gamerule.
Lets you define a spawn chunk radius for your world or server, similar to modern Minecraft, but with a few differences. In Minecraft 1. 12, chunk tickets didn’t exist, so spawn chunks are a fixed 16×16 section always loaded and ticked. Entities inside are only processed in a smaller 12×12 area, because entity AI requires a 5×5 loaded area. PaperFixes uses a consistent diameter by centering on the chunk containing spawn, unlike vanilla which can make it 17×17 if spawn is centered in a chunk.
Setting this gamerule to 0 completely disables spawn chunks.
spawnChunkRadius - Sets the default spawn chunk radius for the above feature. Applies only to new worlds or worlds not yet run with PaperFixes 2. 0. 0-beta. 1 or newer. Values can range from 0 to 32, where 0 disables spawn chunks entirely and 32 gives a 64-chunk diameter.
improvedTickLoop - Measures time in nanoseconds instead of milliseconds for better accuracy, uses LockSupport.parkNanos for precise sleeps, and adapts sleep time depending on tick length. Runs ticks as fast as possible when the server is more than 2. 5 seconds behind, spinning instead of sleeping near the start of the next tick to avoid oversleeping.
tickLoopSpinTime - Controls how long (in nanoseconds) the server tick loop will spin instead of sleeping. Also affects when the loop stops running scheduled tasks during what would normally be sleep time.
runTasksDuringSleep - Allows the tick loop to run scheduled tasks instead of idling during sleep periods.
fastWorldBorder - Caches the corners of the world border to make calculations faster instead of recomputing them each time.
Performance
📊 Mod Details
- Game
- Minecraft Mods
- Author
- Elephant1214
- Version
- 2.0.1
- Downloads
- 5,283
- Endorsements
- 6
- Category
- forge
- Created
- 6/24/2024
- Updated
- 10/11/2025
- Game Versions
- 1.12.2
- Tags
- management, optimization, utility
🔧 How to Install Minecraft Mods Mods
Download from Modrinth. Use Prism Launcher or drop into your mods folder.
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❓ Frequently Asked Questions
Which Minecraft Mods versions does PaperFixes support?
The author lists 1.12.2. Other versions may work but are untested by the author.
What is the latest version of PaperFixes?
Version 2.0.1, published 2025-10-11 with 5,283 downloads recorded at the source.
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