We haven't released it to the main branch yet, or the demo as we want to get some play testing in before then. So if you do have a full licensed key you can only see these changes by making sure you select closed_beta as your branch in Steam.
The attached picture below indicates each of the major new additions

New Archer Class! (Premium License Only). Skills include:
Aimed Shot: Fire an arrow with precision, guaranteeing a hit and dealing damage to your opponent.
Poison Shot: Afflict your enemy with poison, removing life per turn for 2 turns.
Ricochet: Fire an arrow that will hit an additional adjacent enemy.
New Cleric Class! (Premium License Only). Skills include:
Aura of Light: Emit a radiant aura, healing allies and damaging foes who walk within.
Holy Bolt: Unleash a bolt of holy energy upon your enemy.
Hands Of Life: Reach out to an adjacent friendly character and heal them.
Auras now indicate their range with a glowing tile effect. (All Versions)
Added new console to track movement and afflictions, accessible through the in game settings dialog (more to come here) (All Versions)
Additional Changes (All Versions):
Fixed issue where some female items could not be equipped.
Character portraits are now static, increasing UI performance.
Equipping items is now much faster.
Upgraded underlying Unity Engine to v6000.30.f1
Known issues:
Cleric "Aura Of Light" skill has incorrect description
Cleric "Holy Bolt" has incorrect description