An update to Seal the Deal DLC is now available!

Ship Shape's requirement has been reduced from 20 to 18 (40 to 27 in co-op).
Peace and Tranquility has been assigned another button instead of A
Fixed a softlock in Boss Rush
Death Wish Mafia Boss no longer pushes the player away into sandbags
Boss Rush lives have been redesigned. You can now retry a boss in Boss Rush up to 3 times, after which you return back to the first boss.
Peace and Tranquility now no longer shows after 50 deaths (but you should definitely turn it on if you're this deep)
Death Wish now counts as 110% on the save file and is no longer required for 100%.
Modding is now enabled by default again
* Punished Kid achievement stamp requirement has been reduced from 70 to 50