Added: 

• New cave region!
• Lamps (You can dagger dash into them!)
• 5 new rooms
  • Movement based challenge;
    
  • Common Rooms;
  • Boss room;
• New boss!
• Overhauled main menu.
• Soul Skill selection system!
  • Equipped soul skill is displayed on the left of the HP bar.
  • You can now obtain and swap between soul skills.
  • Yokai Style skill working completely and can be obtained from the Stranger's Shop!
• Soul warp (Fast-travel)!
• New tutorial demi-boss.
  • Rewards player with the dash skill!
• Cave Shop
  • Stranger has setup a shop on the caves!
  • Buy different items to aid your journey through the Hollowing Depths, but beware... some artifacts are cursed!
• Ropes added to vertical zone doors.
• Stage tracker on puzzle (so the puzzle goal is easier to understand).
• Spike sprites added to deathzones.
• Pickups: Skills now are only usable after the player obtains them. When the player unlocks a new skill a pop up is displayed showing how to use it.
• Sounds added! (a whole load of 'em)
  • Sounds added to most of the game.
  • Sounds fall of after a certain distance, depending on the volume of the sound.
  • Sounds are directional, unless you're standing too close to them.

Changes:

• No more placeholder sprites at cave levels.
• Attack scaling is now linear, adding .33 per level.
• Special attacks scale with level.
• Bow now requires a full energy bar to use and consumes it. Base damage increased and now scales with player attack.

Major bugfixes:

• Daggerdash no longer tries to protect you by placing you out of harm's way (inside walls, where you can't move... thanks a lot, dagger!).
• Max energy and energy level will now display correctly for upgrades and energy consumption step updates.