Lots of bug fixes, improvements to UI, performance improvements, and adjustments to gameplay listed below:
-Rebalanced 1up drops, powerups, and upgrade chips
-Fixed clown AI issues such as Jumping Jesters killing their own kind making them way too easy and clown populations have been reworked to give level progression better pacing
-PDA and Art collectibles weren't properly saving after acquiring, nor were they correctly showing on the collection screen
-Local drop in coop was mixing up player 3 and player 4, allowing player 3 to choose player 4's character for them
-Plenty of small visual elements were also fixed, such as bloody footprints and dust appearing in a straight line rather than under the owner's feet. As well player locating arrows aren't as obstructive when they pop up.
-Load screens now properly show progress via a load bar and no longer freeze for extended periods of time, broken into smaller chunks
-Jugularnauts have had slight adjustments to their speed, hp, and various other elements to make them feel more unique from one another
-Various other adjustments have been made as well that i can't remember that make Circus Interstellar much more fun :)