Component og_migrate.module missing from select list (perhaps it shouldn't be in the package). However it is in the package and when called it tries to call og_needs_migrate on line 60 and that function does not exist anywhere in the og package. Site left in a nasty state with only recovery to delete all of og, actually just og_migrate is enough.

Actually trying to migrate from d6 to d7 and if the latest version of og is missing the migrate functionality, how do I do that? I suppose just use migrate module instead of trying to upgrade. But if this is the case the documentation needs to say that somewhere. And not include a migrate stub making you think it can do something.