From in-game’s patch notes:

• NEW: Blndr tower
• NEW: Meteor enemies
• CHANGED: now Quantum Eraser only destroys normal enemies
• REBALANCED: chances of Skill Enhancements in shop
• REBALANCED: limit number of enemies Air Blade can kill per round
• REBALANCED: limit number of enemies Thunderstrike can kill per radius unit
• REBALANCED: nerfed Thunderstrike’s enhancements
• REBALANCED: number of bullets in Air Blade’s Bullet Channeling
• FIXED: some typos
• Other minor/under-the-hood changes