Sounds interesting. As long as the game does not support specifying multiple compatible API versions this might make major updates a bit smoother yet again.
Maybe you could also do it the other way around?
I am thinking about using this so I only have to update once right when the update is coming out and I would put the new API version in place instead of the old one. So it would be nice if it could replace that with 100012 until the game got updated for EU.
Just another thought, but I can't check if it would cause problems right now for obvious reasons.
Would it be possible to make it work like this:
Code:
## APIVersion: 100013 100012
## APIVersion: <current version> <other version>
In that scenario your program just changes the order of these numbers so that the current manifest version comes first.
I imagine this would be the way how it would be specified if the game ever allowed for multiple versions.