Supreme [Slimefun Addon] icon

Supreme [Slimefun Addon] -----

Unofficial 1.21.11 port for Supreme. Powerful additions for Slimefun!




Bugfix: TechGenerator Card Recipes
Fixes:

  • Fixed an error that occurred when trying to access the recipe for TechGenerator cards through the Slimefun guide.
----------, Mar 15, 2026

Bugfix: Custom Player Head Placement
Fixes:

  • Fixed a critical bug where placing custom Slimefun items (player heads) on the ground would strip their data and turn them into regular vanilla player heads. Custom items will now properly retain their Slimefun data when interacted with.
----------, Mar 14, 2026

Bugfix: Mob Collector Stacking Issue
Fixes:

  • Fixed an issue where machine mob upgrades were not stacking correctly in the inventory when collected using the Mob Collector tool.
----------, Mar 14, 2026

Bugfix: CS-CoreLib Profile Warning (Item Textures)
Fixes:

Fixed the console warning "[WARN]: Couldn't find profile with name: CS-CoreLib" by updating the way item textures (custom heads) are loaded.
⚠️ Important Note for Existing Servers
If this warning still appears in your console after updating, it is caused by old items already placed in your world.
  • Please contact me in private so I can create a proper migration method for your old items.
  • If you want a quick fix right now, you will need to clear/break the old addon heads placed in your map.
----------, Mar 11, 2026

Update: GenericMachine Logic
Changes:

  • Updated the GenericMachine to improve start matching and properly handle the consumed attempt count.
----------, Mar 10, 2026

If you were seeing , this update is mandatory.java.net.URISyntaxException: Expected authority

error when running the command./sf versions

Fixes:
  • Corrected a malformed URL () in the addon registration method that was causing Netty packet encoding failures.https://
----------, Feb 28, 2026

Resource Information
Author:
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Total Downloads: 61
First Release: Feb 27, 2026
Last Update: Mar 15, 2026
Category: ---------------
All-Time Rating:
2 ratings
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