Here is a clean, release-ready changelog formatted for your plugin release page (SpigotMC, BuiltByBit, Polymart, Modrinth, or GitHub Releases).

📦 SortSage - v1.0.0 (Paper 1.21.1 Release)

🎉 Initial Paper Port

SortSage has made the jump from a Forge mod to a fully server-side Paper 1.21.1 plugin! Players can now sort their storage areas without needing any client-side mods installed.

✨ Added

• Paper 1.21.1 Compatibility: Full native support for Paper and Spigot 1.21.1 server software.

• Server Command (/sort): Added the /sort command to trigger the 16-block radius inventory reorganization.

• Permission Support: Added sortsage.use permission node (enabled by default for all players).

• Enhanced Sign Support: Added automatic attachment detection for Hanging Signs (wall and ceiling variants) alongside standard Wall and Standing signs.

• Sign Text Flexibility: Full detection support for both the Front and Back text of signs.

🔄 Changed

• Zero Client Requirement: Replaced the client-side keybind ('O') and Forge network packets with a lightweight server command.

• Modern Data Components: Migrated item equality checks from legacy NBT comparisons to Minecraft 1.21+ Data Components (ItemStack.isSimilar()), ensuring enchanted books, trims, custom names, and damaged tools are preserved accurately.

• Native Inventory Handling: Shifted from Forge IItemHandler capabilities to Bukkit's native InventoryHolder system.

🛡️ Fixes & Improvements

• Double Chest Deduplication: Added robust left/right chest boundary checks via DoubleChest to prevent duplicate scanning or item duplication bugs.

• Overflow Protection: Automatically safely drops any excess items at the player's feet if all marked chests reach maximum capacity.

• Java 21 Ready: Fully compiled and optimized for Java 21 runtimes.

📋 Installation

1. Stop your server.

2. Place SortSage-1.0.0.jar into your server's plugins/ directory.

3. Start the server.

4. Place a sign labeled to sort on your chests/barrels and run /sort!