Yeah when you go into the version screen it says "2015", the previous one said "2014".
Despite me being really worried, indeed panicky at times, I just left it going over 2 days. Leave the card in, just drive around normally and eventually it will magically say "complete!".
Don't take the card out until it says it.
During the upgrade expect all sorts of things related to the DNS Pro to stop randomly working, but they will come back.