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New Minecraft 1.21.9 Pre-Release Boosts Copper Golem Performance

9/23/2025

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Summary

Story summary

Third pre-release for Minecraft 1.21.9 focuses on copper golem performance updates and bug fixes; back up worlds before testing.
Fixes include lag from copper golems checking chests and culling issues with copper golem statues.
A fourth pre-release has been released, adding more fixes; Debug Options now open with F3 + F6, and installation is via the Minecraft Launcher Installations tab.

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Story summary

Third pre-release for Minecraft 1.21.9 focuses on copper golem performance updates and bug fixes; back up worlds before testing.
Fixes include lag from copper golems checking chests and culling issues with copper golem statues.
A fourth pre-release has been released, adding more fixes; Debug Options now open with F3 + F6, and installation is via the Minecraft Launcher Installations tab.