Minecraft 1.18-pre3

Everything below is measured by comparing the game files of 1.18-pre2 with 1.18-pre3 — not copied from patch notes.

Read from Mojang’s own release notes for Minecraft 1.18 Pre-Release 3, published 2021-11-17. Every entry keeps its original bug ID.

16 issues fixed, read from Mojang’s own patch notes. Each entry keeps its original bug ID.

Fixed bugs in 1.18 Pre-Release 3 16

• MC-109260 Full-width punctuation characters are rendered incorrectly
• MC-185263 Non full chunks in cache memory "semi-leak"
• MC-223840 Lava blocks from "Lava Aquifers" don't get updated when a cave cuts through underneath them
• MC-231818 You can no longer use the up or down arrow to navigate between servers in the multiplayer menu
• MC-236740 Server-side lag spike sometimes occurs when attempting to locate a buried treasure or opening/breaking a chest containing a map
• MC-236764 Lighting lags behind world generation
• MC-239397 Lava pockets generate in icebergs
• MC-239610 Severe world corruption due to 1.18 snapshots failing to deserialize chunks that 1.17 loads fine
• MC-239682 Out of memory crash: World generation exhausts Java heap space
• MC-239950 Feature placement doesn't check for biomes, causing unnecessary lag
• MC-240229 Rain and snow fall on the same blocks in a certain height range
• MC-240483 Foxes that spawn in grove biomes aren't the snowy variant
• MC-240589 Game froze for several minutes and then crashed while flying around and loading chunks
• MC-241245 Generated Deepslate overwrites ore veins (mainly Iron ore veins
• MC-241255 Gigantic Performance Drop after a couple of minutes
• MC-241352 Directory structure is not consistent between server and client

This build was part of the run-up to 1.18. Everything tested here landed in that release.