Couple new things added in 0.12 - these were requested changes from users.
Adjust swing mechanics - now instead of one swing, it's a forward swing and back swing for a more natural movement.
Fixed zombie hit detection - now zombies animate when hit - especially noticable when attacking slow-moving zombies. They can even be detected when they are being hit on the ground.
Added 4 achievements for the demo - enjoy and wear them like a badge of honor.
Adjusted the bathroom and closet jumpscare - were not effective so hopefully, they make the experience more enjoyable.