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

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4.1.73

๐Ÿงชโšก SLIMEFUN LEGACY v4.1.73 โšก๐Ÿงช

๐Ÿ”ง More Stability! ๐Ÿ›ก๏ธ Better Recovery! ๐Ÿš€ Modern Minecraft Support!

The machines are humming, the reactors are glowing, and another Slimefun Legacy update has arrived! ๐Ÿ’š

Version 4.1.73 builds upon 4.1.71 and 4.1.72 with important compatibility fixes, improved administrator diagnostics, safer plugin shutdown handling, and continued work toward modern Paper and Purpur support.

Whether you're running a massive automated factory ๐Ÿญ, managing thousands of Slimefun blocks, or maintaining an entire addon ecosystem, this update focuses on keeping your world running smoothly!


๐Ÿ†• WHAT'S NEW SINCE v4.1.71?

๐Ÿ›ก๏ธ 1. Critical Compatibility Fixes

Keeping your favorite equipment working!

  • ๐Ÿช– Shulker Helmet Fix: Restored potion-effect event compatibility on Minecraft 1.21.11, addressing the NoSuchMethodError affecting the helmet's levitation handling.
  • ๐Ÿ”ง Added regression protection to help catch incompatible API changes before release.
  • โš™๏ธ Continued compatibility testing across modern Paper and Purpur server environments.

๐Ÿ” 2. Slimefun Doctor Gets Smarter!

Lost items? Legacy IDs? Time for a checkup! ๐Ÿฉบ

  • ๐Ÿผ Improved recognition of historical EnderPanda item IDs.
  • ๐Ÿ€ Added recognition of legacy LuckyBlocks item IDs.
  • ๐Ÿ“ฆ Introduced an addon-grouped legacy item recovery preview.
  • ๐Ÿ›ก๏ธ Recovery previews remain read-only, avoiding unsafe automatic conversions of valuable player items.
  • ๐Ÿ”Ž Helps administrators investigate historical item compatibility issues before taking corrective action.

Your old Slimefun treasures deserve a chance to survive! ๐Ÿ’Ž

๐Ÿš€ 3. Purpur 26.3 Compatibility Progress

Preparing Slimefun for the next generation!

  • ๐ŸŸฃ Added an official experimental Purpur 26.3 compatibility milestone.
  • ๐Ÿงช Expanded runtime validation for modern Purpur builds.
  • ๐Ÿ”Œ Added testing of the canonical addon collection against Purpur 26.3.
  • โš™๏ธ Maintained compatibility validation for Minecraft 1.21.11 and newer supported versions.

Note: Purpur 26.3 support is still being validated. Experimental compatibility does not guarantee that every third-party addon is ready.

๐Ÿง  4. Better Plugin Lifecycle Safety

Because shutting down should actually mean shutting down! ๐Ÿ›‘

  • ๐Ÿ”’ Improved handling of GitHub-related background callbacks.
  • ๐Ÿงน Prevents outdated callbacks from continuing after the original plugin instance is disabled.
  • ๐Ÿ”„ Strengthened shutdown and restart lifecycle testing.
  • ๐Ÿ›ก๏ธ Reduces risks from stale asynchronous results during plugin shutdown.

A safer lifecycle means fewer unpleasant surprises during maintenance.

๐Ÿ“ฆ 5. Addon Ecosystem Improvements

One Slimefun. Countless possibilities! ๐ŸŒŽ

  • ๐Ÿ”— Updated compatibility tracking for the maintained addon collection.
  • โšก Advanced canonical addon bundle revisions through r130 alongside the v4.1.73 release preparation.
  • ๐Ÿงฐ Improved addon build validation and binary compatibility checks.
  • ๐Ÿญ Continued integration testing for automation, storage, machines, and related addon functionality.

Separate addon bundle update: Revision r131 subsequently incorporates Networks 1.0.52, including expanded Network manager fixes. This is an addon-bundle update rather than a new core feature.

๐Ÿงช 6. Better Testing & Release Reliability

Less guesswork. More Slimefun!

  • โœ… Additional compatibility regression testing.
  • โœ… Validation of existing-world upgrade scenarios on Purpur.
  • โœ… Stronger release metadata and compatibility contracts.
  • โœ… Checks designed to catch API breakage before builds reach production servers.

๐ŸŒ COMPATIBILITY

Platform Status
๐ŸŸข Minecraft 1.21.11+ Supported version range
โš™๏ธ Paper Primary supported platform
๐ŸŸฃ Purpur Supported, with version-specific validation
๐Ÿงช Purpur 26.3 Experimental compatibility milestone
๐Ÿ”Œ Slimefun addons Compatibility depends on individual addon builds
โ˜• Java Java 21+ bytecode baseline; follow platform requirements

๐Ÿ“ฅ UPGRADING FROM v4.1.71 OR v4.1.72

Upgrading is straightforward, but always protect your world first!

  1. ๐Ÿ’พ Back up your worlds, player data, Slimefun data, and addon configurations.
  2. ๐Ÿ›‘ Stop your Minecraft server completely.
  3. ๐Ÿ“ฆ Replace your previous Slimefun Legacy JAR with v4.1.73.
  4. ๐Ÿ”Œ Check your installed addons for compatible versions.
  5. ๐Ÿš€ Start your server and inspect the startup log.
  6. ๐Ÿฉบ Run /sf doctor status and /sf doctor compatibility.

โš ๏ธ Never use /reload to upgrade Slimefun.


๐Ÿ’š KEEPING THE LEGACY ALIVE!

Slimefun Legacy is dedicated to preserving the classic Slimefun experience while bringing its machines, electricity, cargo networks, automation, magical equipment, and enormous addon ecosystem into modern Minecraft.

No client-side mods required. Just Minecraft, creativity

https://github.com/wickidcow/Slimefun-Legacy/releases/download/v4.1.73/SF_Addons_1.21.11-26.3.zip

Information

Published
October 11, 2026
Author
7Downloads

Platforms

Paper
Paper
1.21.11โ€“26.3

Dependencies

PaperPaper

Dependencies: Paper

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