The Binding of Isaac: Rebirth

Improve Steam Cloud sync
Fix random disconnect for Sony controllers
Fix crash on trinket pool reset
Fix Gemini + BFFS
Fix Technology 2 + Chocolate Milk
Eden's start items are seeded more reliably
Fix collectible spawn position for There's Options and Negative
Fix Holy Mantle continue exploit
Fix seed exploit for challenge runs
Fix hard mode affecting room drops other than hearts
Fix P2 blood donation exploit
Fix P2 anti-gravity
Fix P2 being able to use bombs
Fix Devil Deal exploit with half soul heart
Fix invincible Carrion Queen
Fix Blue Baby restart issue
Fix Haunt not invincible for the first few frames
Fix 60fps interpolation for Cube of Meat 2
Fix picked up item disappearing when exiting during pickup animation
Limit Halo of Flies count to 10
Change Lil' Brimstone deal to 2 hearts
Change Ticking Spider collision damage to half a heart
Change Head of Krampus to 6 charges
Improve Dark Bum mechanics

Happy that the tricket pool crash was fixed. Might do a BASEMENT run for shits and giggles once I unlock everything now.

Not sure what was wrong with Gemini + BFFS, nor what was wrong with Technology 2 + Chocolate Milk (although I never pick up Chocolate Milk so...)

Does anyone know what the Holy Mantle Continue Exploit was?

Hard Mode fix was definitely needed. I haven't touched Hard Mode because you simply get no drops, and it made the game simply unfun when you missed every single Treasure Room due to no keys appearing at all.

The Halo of Flies count apparently deals with shot blocking flies, not blue attack flies, so people say on Reddit (I haven't had a chance to play yet with Guppy or Infestation to test it out). I didn't even know you could get that many shot blocking flies to begin with. If it's a change on attack flies...I don't get it. That's part of the awesomeness of a good Guppy build.

Head of Krampus nerf sucks...but is understandable because it's OP as hell. It pretty much one-shots Mom.

Not sure what "Improved Dark Bum mechanics" even means.