Missing DLC on Itch.io

[StrangerGameMaster]

I normally don't buy games on Itch.io, but I got the Bundle for Ukraine they offered over there a couple years ago, and CrossCode was included in it. I really liked the game, so I also bought the A New Home DLC over on the same platform, only to then find out there was more DLC here and on GOG that isn't on Itch.io. Specfically, I'd like to get the ninja skin and the soundtrack. Any chance of getting those on Itch.io? If not, what do you recommend? I also have this feeling that the version available on Itch.io is actually outdated and that there have been more recent updates than the one available there. Is this really the case? And if so, any chance people like me can get the newer updates?