FIXED 1.21.3 resource pack, please execute /val resourcepack setup again
FIXED Copper armor on the classic package. Please consult the wiki for the fix. I hope you weren't attached to your existing copper gear, because this change required me to change the types and NBT of copper gear to make it work.
FIXED Missing language mapping warning on startup (you may need to reset smithing.yml for this)

ADDED 3 new modifiers! One to make any item equippable, one to change the tooltip styles of items, and one to change the model of items.

TWEAK Skills for which player doesn't have permission to access will no longer contribute to stats or allow ability usage