Minecraft The Copper Age 1.21.9 Update: What's New?

The wait is over! The Minecraft 1.21.9 update brings more polish, behavior tweaks, and performance improvements focused largely on Copper Golems, Mannequins, and a bunch of technical fixes. Whether you're building monuments, exploring underground copper deposits, or configurating data packs, this release is one to watch!

Here's everything you need to know about this update...

The Copper Golem Arrives

The Copper Golem is probably the biggest change to the game in this update. It's your very own personal assistant... for organizing things. 😁

• Built from copper! Their playful interactions with buttons and chests open up various redstone and automation possibilities.
• Over time, they naturally oxidize, changing their look and behavior as they age.
• Once fully oxidized, they transform into statues.

Copper Blocks & Items

Copper is even more useful now with new copper-themed blocks and items to expand your building palette.

• Copper Doors
• Copper Trapdoors
• Copper Grates (for floors, walls)
• Copper Bulbs (new 💡 light source)
• Chiseled Copper Blocks
• Cut Copper Blocks (+ slabs, stairs, walls)
• Oxidizing Variants
  • Each of the above naturally weathers through all four oxidation stages.
• Waxed Variants
  • Allows you to lock your favorite oxidation stage in place with honeycomb.
• Copper Golem Statues

Mannequins, what are they?

These display entities are here to take building, map-making and storytelling to the next level.

• Pose mannequins however you like.
• Equip them with armor, tools, or any custom look.
• Add descriptions or keep them hidden.
• Use them in adventure maps, shop displays, or even as quest givers.

Suddenly, my server is filled with players (mannequins). 😲

Gameplay & Technical Enhancements

This update doesn't just bring shiny new blocks, it also powers the technical side of Minecraft which you may want to take a look at if you own a Minecraft server.

• New Commands
  • /spawnpoint now supports pitch, letting you tune the exact angle players face when respawning.
  • /setworldspawn works in any dimension so you can create Nether or End based spawnpoints.
• Player Profile
  • The new minecraft:profile component lets creators override textures, capes, elytras, and models.
  • This means custom skins, cosmetic tweaks, and detailed character control.
• Mannequin Data Fields
  • New fields like pose, immovable, description, and hide_description.
  • Combined with spawner support, mannequins can now be fully equipped and skinned.
• Datapack Version Upgrade
  • A new datapack version gives creators new rules and tools.
• Performance & Stability
  • Copper Golem interactions with chests have been streamlined to prevent lag.
  • Rendering and culling updates improve oxidized statues and mannequins display which reduces visual glitches.
  • Backend fixes removes crashes and clean up command inconsistencies.

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