Minecraft 1.21.9 Pre-Release 1 Patch Notes – Copper Golems, Mannequins, and Final Fixes

Minecraft 1.21.9 Pre-Release 1 Patch Notes – Copper Golems, Mannequins, and Final Fixes

After nearly three months of testing through snapshots, Minecraft’s The Copper Age update is edging closer to launch. Mojang has now released the first Minecraft 1.21.9 pre-release, moving the update out of snapshot territory and into the pre-release phase.

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As with most pre-releases, this build isn’t about adding major new features but about final polish, bug fixes, and smaller tweaks before the official release candidate. Still, players can expect some important improvements to copper golems, mannequins, commands, and technical systems.

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What’s New in Minecraft 1.21.9 Pre-Release 1?

Copper Golem Improvements

Copper golems—one of the headline features of The Copper Age—received final polish in this pre-release. Notably:

  • Fixed pathfinding issues.
  • Copper golems now only try to open chests that are direct neighbors when they’re passengers.
  • Several bugs tied to chest interactions and item sorting were resolved.

Mannequin Updates

The new mannequin NPCs have also seen refinements:

  • Configurable description text is now available.
  • Support for different poses like standing, crouching, swimming, flying, or sleeping.
  • Mannequins now accept the minecraft:profile component from spawner items.
  • New options like immovable mannequins and the ability to hide descriptions entirely.

Technical and Command Changes

  • Server Commands:
    • spawnpoint and setworldspawn now include optional pitch arguments.
    • Respawns can now be set outside the Overworld (e.g., in the Nether).
  • Data Components:
    • Expanded support for textures, capes, elytra, and skin models.
    • Extended loot functions for more context-based copy options.
  • Server Management:
    • Notifications now use the minecraft:notification/ prefix.
  • Data Pack version updated to 87.1.

Fixed Bugs in Minecraft 1.21.9 Pre-Release 1

As expected for a pre-release, the changelog is heavy with bug fixes. Highlights include:

  • Fixed end portals not negating fall damage. (MC-160528)
  • Lightning now properly resets copper golem oxidation. (MC-300257)
  • Fixed crashes caused by adding blocks to various tags like #copper_chests and #wooden_shelves.
  • Improved sounds for copper chests and their variants.
  • Fixed mannequin data loss, invisible name tags, and other rendering issues.
  • Multiple crash fixes tied to debug mode, resource packs, and pathfinding.

For the full list, Mojang has patched over 30+ bugs ranging from mob AI quirks to technical crashes.

The Minecraft 1.21.9 pre1 update may not be as flashy as the earlier snapshots, but it’s an important step toward the official release of The Copper Age. With final bug fixes, copper golem adjustments, mannequin upgrades, and server tweaks, Mojang is clearly preparing to lock down the update for its big release later this year.

If you’ve been following The Copper Age, now is the perfect time to jump into the pre-release and see the finishing touches before launch.

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