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Slimefun4 continued for modern Paper servers, preserving classic gameplay, machines, items, and addon support.

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4.1.44

πŸš€ Slimefun Legacy 4.1.44

✨ Everything new since 4.1.42!

A bunch of polishing, compatibility fixes, and performance improvements have landed since 4.1.40! πŸ› οΈ

⚑ Performance Improvements

  • Faster Enhanced Auto Crafters
  • Reduced Energy Regulator overhead
  • Reduced idle Electric Smeltery work
  • Improved inventory and recipe caching
  • Various ticker and network optimizations

🌟 Resonance Beacon Overhaul

The Resonance Beacon received some serious performance love!

  • Much less work every tick
  • Smarter caching and effect scheduling
  • Reduced particle/beam overhead
  • Gravity Well work spread across multiple ticks
  • Player effects no longer require unnecessary entity scanning
  • Added /beacon perf diagnostics
  • Live testing showed roughly 93% less Beacon ticker time in the tested workload πŸŽ‰

All existing Beacon powers and saved Beacon data remain intact.

🎨 Better Addon & ItemsAdder Compatibility

Slimefun now preserves external CustomModelData when it doesn't have its own model override.

This fixes custom weapon/item visuals used by addons such as:

  • Slimefun Warfare
  • Military Arsenal
  • Other addons using ItemsAdder/custom models

🧩 Compatibility & Stability

  • More Paper 26.2 compatibility improvements
  • Paper's newer recipe-choice handling supported
  • Leaf 26.2 added to runtime testing
  • /sf tick top correctly handles negative-Y coordinates
  • New slimefun.update-notifications permission
  • More runtime and gameplay validation

❀️ Same Slimefun, Just Better

No item-ID migrations, world conversions, or major gameplay rewrites.

Your existing worlds, machines, recipes, Beacon powers, and addon integrations are preserved wherever possible.

Paper 26.2 βœ… Purpur & Leaf 26.2 βœ… Folia 26.2 πŸ§ͺ Experimental Java 25 βœ…

πŸ§ͺ Build. Automate. Break fewer things.

Keep Slimefun alive. Keep it compatible. Keep it fun. πŸ’š

See Release Notes for Updated Slimefun Legacy Addons: (Updated 9-1-2026 @ 7pm EST) sha256:054067fae23011c0ea464a0f2909499fe832c7d5b322b27a6cd28e7c97ddf340

https://github.com/wickidcow/Slimefun-Legacy/releases/tag/v4.1.44

Information

Published
September 1, 2026
Author
1Downloads

Platforms

Paper
Paper
1.21.11–26.2

Dependencies

PaperPaper

Dependencies: Paper

Plugins and libraries a server needs for this version to run.

No dependencies

Add anything a server has to install alongside this version.