This demo overhaul all the systems from the previous version and introduce new ones, here some of the noticeable change:
New mercury machines
Scrap can be used as a weapon
Birds have new AI behavior
Scavengers AI and weapons improved
Camera and lock on reworked
drone have multiple new weapons
New NPCs + new dialogues
Executors mini boss have new improved moves and drop items
death warp bugs fixed
performance improved + new performance options
menu reworked
new save slots system
Heal fly glitch patched
blacksmith anvil does damage now
new ending + cutscenes
cutscenes bugs removed
ERI boss fight reworked
Sin boss fight reworked
elevator bugs patched
new shop system
new area and new boss
ladders bugs fixed
new starting items and abilities
new fps independent timer for speed runs
new compass for navigation
new dream mechanic
Bottomless areas respawn fixed
new currency
new lenses
new slot based ability system
new smoother movement system
ground parrying
improved combat system
improved parrying
new charged abilities
better anti clip measures
enemy respawn system
new input remapping system
new secret outfit
new secret masks
improved visuals
there's more minor and too technical changes, so I'll spare you.
Thanks for your patience and have fun