This update adds Spellcasting, mainly for late-game use. There are still some missing Aeternium items so that will be added in the next update. The rest of the change log will be in there.
Main Things to Know
You can craft Wands and Staffs to cast spells in early/mid game
In late game you can craft a Spell Binding Table to unlock more powerful spells.
The name on Modrinth when downloading shows that it is a Dev version will be fixed in the next update.