This is not exactly a request for loader compatibility so much as a remark/question about it, which is adjacent enough I am not sure whether to respond to this thread or make a new one, so arbitrarily I have chosen to respond.
If multiple loader mods are present, then this mod seems to only upgrade one's and complain that the others' loaders are unsupported. My specific case is I have AAI loaders, and have left K2 loaders enabled because a K2 addon crashes on startup otherwise; under these circumstances, this mod upgrades K2 loaders but not AAI. I am not sure if this should be considered a bug or intended behavior, but it seems at least worth pointing out and asking about.