If you have a Solus Pro with Domestic and Asian , I think it is stuck where it is at. It is no longer possible to buy updates for it, and I don't think it had the capability to download anything and install them in any automated fashion.
I'm not sure whether all the European software is already be on the tool and software could still somehow be unlocked by a knowledgeable Snap On Tool guy or not without bricking it.
Snap On doesn't want to sell the Final Legacy updates of their discontinued tools past the 6mo window of initial release for typical Joe Smoes. I guess they figure if they do that it might diminish the sales of new scanners and they might be on the hook to have to warranty the software on their diagnostic tools longer like replacing a cracked sockets.