🚀 Slimefun Legacy 4.1.64

Everything new since 4.1.61

Slimefun Legacy has received a major round of compatibility, preservation, stability, addon, and modernization work since 4.1.61! 🎉

📌 Note: 4.1.62 was not published as a standalone stable release. That work was rolled into 4.1.63, followed by the additional fixes in 4.1.64.

The focus remains the same: keep classic Slimefun working, preserve existing servers and items, modernize the codebase, and make Slimefun Legacy dependable on modern Minecraft versions. 💚

🛡️ Existing World & Item Preservation

A huge amount of work went into making upgrades safer for established servers.

• 🔒 Preserved existing Slimefun item IDs and research IDs
• 💾 Preserved storage identities, inventories and persisted data
• 🎒 Improved protection for existing backpacks and owner data
• 🧱 Hardened machine/block storage compatibility
• 🗃️ Improved handling of older serialized items and data
• 🚫 Incomplete or failed inventory reads are no longer treated as empty inventories that can accidentally overwrite recoverable data
• 💾 Item data is staged more safely before database writes
• 🔧 Item Doctor repairs preserve existing charge and custom metadata whenever possible
• 👤 Improved preservation of addon-created machine/player profiles
• 🔄 Added additional old-version → upgrade → restart compatibility testing

No unnecessary conversion of existing worlds or Slimefun identities is performed.

🗄️ Storage Persistence Fix

4.1.64 fixes an important edge case involving cancelled block removals.

Previously, a deleted setting could disappear from the live cache but remain in the database and potentially return after a server restart.

This has now been corrected. ✅

• Pending deletions reach the normal persistence scheduler
• Empty strings remain legitimate stored values
• No new database format was introduced
• No new persisted storage marker was added
• Existing storage identities remain unchanged

🌈 Legacy Item Color Fix

Legacy item colors are back! 🎨

The modern Adventure-based text system now correctly handles the older formatting styles still used by Slimefun addons.

This includes:

• 🌈 Traditional § color formatting
• 🎨 Valid & color codes
• ✨ Legacy/Bungee-style RGB formatting
• 🪄 Better compatibility with MagicExpansion and other older addons

This fixes cases where item names or lore displayed the actual color-code characters instead of their intended colors.

And importantly:

No item IDs, recipes, persistent keys, or saved-data formats were changed.

📖 Slimefun Guide Improvements

Several guide compatibility and organization problems have been addressed.

• 📁 Fixed child addon categories/folders appearing incorrectly in the main guide
• 🔎 Preserved recipe browsing and reverse-recipe searching
• 📚 Improved compatibility with maintained JustEnoughGuide builds
• 🧩 Preserved guide ownership and registration APIs for addons
• 🎁 First-join guide behavior remains controlled correctly
• 🛠️ Existing customized layouts are protected where possible

🧪 Much Stronger Upgrade Testing

Slimefun Legacy now has considerably more automated compatibility testing aimed specifically at protecting existing servers.

Testing now covers areas such as:

• 🕰️ Older Slimefun item formats
• 🔄 Upgrade and restart behavior
• 💾 Typed persistent data
• 🧱 Saved block/machine information
• 🎒 Storage and inventory preservation
• 🧩 Addon compatibility
• ☕ Java compatibility
• 📦 Reproducible release builds
• 🖥️ Multiple supported Paper versions

Historical-format fixtures can create older-style data and then verify that identities survive upgrades and restarts.

🧰 /sf doctor & Recovery Improvements

Recovery and diagnostics continue to become a major part of Slimefun Legacy.

The goal is simple:

Unreadable data should be investigated — not silently replaced with an empty inventory.

Additional protections have been added around:

• Failed storage reads
• Historical item formats
• Addon storage
• Item presentation repairs
• Migration boundaries
• Restart persistence

🧩 Maintained Addon Ecosystem

The official coordinated addon bundle has grown into a 45-addon maintained ecosystem. 🎉

The addons are built against the matching Slimefun Legacy core and validated as a coordinated set.

Major work since 4.1.61 includes improvements across:

🌐 Networks

• Improved storage compatibility
• Preserved transfer priorities and routing behavior
• Improved storage lookup handling
• Added complete sort-mode cycling
• Improved display caching
• Correct cache invalidation when changing filters/sort modes
• Preserved existing Quantum Storage ordering and identities

📦 BetterChests

• Safer legacy-storage handling
• Preserved older item readers
• Conservative refusal of ambiguous storage

https://github.com/wickidcow/Slimefun-Legacy/releases/tag/v4.1.64 Check out this link to find any updated addons for 1.21.11->26.3 minecraft full compatibility