Big change - the 6 previous weapon skills are now merged into 3. Having such specific weapon skills was causing too much upgrade lock-in, and most of the weapons in the game couldn't even be equipped on a single run.
Other changes:
- Map vision stays around for longer
- Slightly more morsels in the mid and late game
- Ghost allies are not quite as tough with the Ghost whisperer ability
- Improved balance of NG+++ player upgrade scaling