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Minecraft Java Edition - 1.21.9 Pre-Release 2

Published: September 22, 2025 - View official source

We heard Friday would be a Pre-tty cool day to release the second Pre-Release for Minecraft: Java Edition 1.21.9, so here we are! This pre-release contains fixes to various issues introduced in previous snapshots, as well as a missed bump to the Data Pack major version.

Happy Crafting!

Changes

  • Copper Golems will now oxidize even when the game rule doDaylightCycle is disabled
  • The Copper Golem's behavior for turning into a statue has been tweaked to match Bedrock
    • Copper Golems no longer need to be close to the center of an empty block position in order to turn into a statue
    • Copper Golems now have the possibility to turn into a statue as soon as they become fully oxidized

Technical Changes

  • The Data Pack version is now 88.0, to match the breaking change to /setworldspawn and /spawnpoint in the 1.21.9-pre1

Fixed bugs in 1.21.9 Pre-Release 2

  • MC-300362 - Copper golems do not oxidize when doDaylightCycle is disabled
  • MC-301566 - Occasional sound crash on resource pack reload
  • MC-301706 - Server Management Protocol does not support parameters as object (by-name)
  • MC-301770 - The below_name plate is not displayed higher for players and mannequins named “deadmau5”
  • MC-301963 - Copper golems cause huge lag spikes when checking chests
  • MC-302088 - Oxidized Copper Golems take an extremely long time to turn into a statue
  • MC-302112 - Posed mannequins don't use the correct hitbox
  • MC-302117 - Text display billboarding is broken
  • MC-302120 - Dimension-specific world spawn point causes mob spawning in other dimensions to fail
  • MC-302148 - Copper Golem does not get close enough to search the chest, getting permanently stuck
  • MC-302164 - Breaking change to /setworldspawn and /spawnpoint in minor datapack version

Get the Pre-Release

Pre-Releases are available for Minecraft: Java Edition. To install the Pre-Release, open up the Minecraft Launcher and enable snapshots in the "Installations" tab.

Testing versions can corrupt your world, so please backup and/or run them in a different folder from your main worlds.

Cross-platform server jar:

Report bugs here:

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