Slimefun4Core
MC-26.2 [ build2814 ]Slimefun 4 unofficial fork updated for Minecraft 1.21.11 on modern Paper/Purpur servers.
MC-26.2 [ build2814 ]latestBuild 2814 — 26.Gen | UpdateSep 8, 2026 Build 2814 — SlimefunCore 4.0 Minecraft 26.x Release SlimefunCore 4.0 now targets Minecraft 26.x exclusively. Compatibility · Minecraft 26.1+ · Paper, Purpur, Spigot, Bukkit · Java 21+ (Java 25 recommended) · 1.21.x support has been droppedChanges Cargo Manager Revamp · Added Cargo Grid Monitor · Real-time network item aggregation · Added item search · Added live per-tick throughput indicators · Added Total Net Throughput · Added Quick Deposit in Slot 9 · Left-click: deposit matching items · Right-click: mass-deposit eligible items · Respects Cargo Output Node filters and whitelists Enhanced Furnaces · Added configurable furnace speeds · Added configurable item output multipliers · New furnaces.speeds and furnaces.multipliers settings in config.yml · Supports All furnace tiers API & Integration Updates · Modernized Paper 26.x API usage · Updated Adventure/component-based events · Modern DamageSource handling · Updated biome registry lookups · Updated potion system · Modernized WorldEdit and mcMMO integrations Installation · Download the Build 2814 JAR. · Place it in your server's plugins/ folder. · Restart your server.
MC-1.21.11 [ build2710 ]Changelog - #2710Sep 8, 2026 Fixes Fixed backpack item duplication and desync issues. Removed items now save correctly and won’t return after server restarts or reloads.CloudConfig Updated to the new CloudConfig system and fixed manual plugin downloads.
Improvements Improved stability, performance, and internal code cleanup.
Thanks Thanks to @graxe_1h7 for reporting the backpack duplication bug and providing detailed logs and reproduction steps.
MC-1.21.11 [ build2700 ]New Features & ImprovementsJun 1, 2026 SlimefunCore4 Changelog Cargo Grid Monitor System (new) · Added a new Cargo Grid Monitor GUI for Cargo Manager. · Added item categories for easier browsing. · Added search support for item names, materials, and Slimefun IDs. Automatic Server Version Detection · Added automatic Minecraft server version detection. · Improved compatibility checks for supported server versions. · Reduced manual setup required for server owners. Automatic Compatible Slimefun Updates · Improved Modrinth update checking. · Added compatible-build selection based on server version. · Added safer update validation before installing builds. · Added cache fallback so startup stays safe if the API is unavailable. Improved Console Logging · Added clear loading steps for services, items, resources, addons, tasks, and integrations. · Improved startup diagnostics while keeping warnings/errors safe and visible.MC-1.21.11 [ build2670 ]SlimefunCore4 ImprovementsMay 19, 2026 SlimefunCore4 Update — Build 2670What's New · Addon Manager now auto-detects your Minecraft version · Only compatible addons are shown · Multi-version addon download support ·
/addon listnow shows version + compatible addon count · Remote sync no longer resets local addon settings Safety Improvements · Addon JARs only delete when YOU remove them · Logs, backups, and deletion queue now persist after restart Automatic World Backups ·world,world_nether, andworld_the_endauto-zip on shutdown · Disk-space checks + old backup cleanup included · Toggle inconfig.yml → slimefun.world-backup Developer Changes · Added Dough bridge layer for easier future API updates · Internal cleanup only — no gameplay changesMC-1.21.11 [ build2647 ]Quick fix sha256 wrongMay 8, 2026 Quick fix sha256 wrong · Fail all 3 attempts · after Attempt 1 fails · attempt 2 skips SHA, succeeds — logs real hashMC1.21.11-2647-UNOFFICIALMay 7, 2026
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