A week to the day after the release of the Java 1.15 version aka the Buzzy Bee Update, a new Release was released, Release 1.15.1, correcting crash and performance issues. This Release comes out after a single PreRelease , the list of changes made since Release 1.15 is therefore almost identical to the changes made in this PreRelease: Optimization This Release first corrects a problem of lags spikes during the display and modification of chunk with a large variety of blocks with different block states (ie blocks with the same ID (or not), but different variants).
Although this patch focuses on this very specific lag problem, this improvement should benefit the overall performance of the game’s rendering engine.
Crash fixes
Several crash issues have been fixed in this Release, most of them related to connection to servers multiplayer, especially with modded servers:
- Fixed crashes when using invalid biome IDs , which was possible on modded multiplayer servers
- Fixed crashes on the Minecraft Realms login screen
- Using the anvils could cause a game crash by placing an object inside
- When updating the worlds format from 1.14.4 to the new Blaze3D format from 1.15, if the converter encountered a corrupt chunk, it would crash without any error message (the progress was simply frozen), this was visible when converting a whole world for multiplayer servers.
Bug fixes
Some other bugs have been fixed in this Release :
- When placing a custom monster spawner that spawned villagers, the game generated a large number of error messages constantly in the logs.
- When we spoke to a villager with food in hand, the food was eate
FIXED BUGS IN 1.15.1
- MC-135050 – NullPointerException while tesselating block model
- MC-167530 – Anvils causing java.lang.StackOverflowError
- MC-167482 – Corrupt chunk causes force upgrading a world to fail
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