Important (if you use the Custom GUI):
I updated all CustomModelDatas because users experienced conflicts with commonly used values (like 1000). This change aims to eliminate such collisions.
What You Need to Do:
- Reinstall the Resource Pack: To ensure compatibility, please reinstall the resource pack with the latest version of it.
- Reset CustomModelDatas (Option 1):
To reset the CustomModelDatas, use the commands:
- /editgui disableCustomGui
- Followed by /editgui enableCustomGui This process will refresh the CMDs.
- Reset CMDs (Option 2):
Alternatively, you can delete your gui_<language>.yml config file. A new one with the correct CMDs will be automatically recreated after reload.
If you need help, feel free to contact me on Discord 
Completed Spigot API
- you can now manage Friends, Parties, Settings, ... through the Spigot API. Check the Wiki for developer docs.
Small Improvements
- all player heads (also from players who haven't joined the server yet), will show skins using the Mojang API
- Added 2D head for skeleton skull with CustomModelData 5050 => /give @p skeleton_skull{CustomModelData:5050}
- Added /party disband command (only leader can execute it, to close the party)
- Added /party warp command (only leader can execute it, to teleport party members to his server)