Marines get new fire/reload/projectile animations, a random event system is introduced, a bunch of balances and tweaks were implemented, and bugs were squashed! Space weather was rolled into the new random event system. Watch out for gamma rays!
Two new game options 1) 0 AP facing, and 2) auto-facing toggle allows for easier repositioning and simplified gamepad (dpad) play.
Full changelogs are on the discussion forums!