New modes:

Shantae mode: Available right now if you use a Nintendo Switch JP account to access the store. Or tomorrow if you want to use a Western account.

Shovel Knight mode: Available next month.

Bug fixes:

Corner Ceiling Clipping glitch has been fixed. This only affects DLC character's and NG+ Good ending route for Area 5 because you can pull off stuff like this:

This actually affects normal 100% as well, since the way i did the routing was to wait until after killing zoidberg and then do the OoB to grab the life up on the way to area 6 after visiting the dungeon after the save point where you summon your tank.

Well, that blows. I don't understand this decision because, in the past, another Inti Creates game called Azure Striker: Gunvolt had a skill jump glitch which allows an extra mid-air jump right after performing a special skill. It was used in the Azure Blur tournament in 2015 and AGDQ 2016 which the team tweeted to check it out and the trick still works in the sequel: Gunvolt 2.

This ceiling glitch is something not many people will think about using and having unbeatable GV/Ekoro Good ending records (V1.2) due to a patch fix is a bit of an insult to the speedrun community.