all druid/shifter shapes will use character's strength/constitution/dexterity if it is higher than what shape provides
all druid/shifter unarmed shapes will now properly take effect of all weapon feats for unarmed including devastating critical hit
all druid/shifter shapes are merging also “items” category
“items” category now consists of arms slot too, so druid will merge gloves/bracers.
the way that merging the weapon slot and the arms slot works is as follows: in a shape with natural weapons (e.g. Dragon), the damage and defensive properties from the arms slot merge, and only the defensive properties from the weapon slot merge. On the other hand, in a shape with weaponry (e.g. Kobold), the damage and defensive properties from the weapon slot merge, and only the defensive properties from the arms slot merge.
ability bonuses, skill bonuses and saving throw bonuses from merged items stacks together
polymorphing doesn't decrease spells slots, however most of the times, the spell slots that would normally be lost will be “depleted” after cancelling the polymorph
humanoid-like shifter shapes (minotaur, kobold, risen lord, rakshasa etc.) can use miscellaneous items such as scrolls, wands, healer's kits etc.