I wish it was that easy. In my case, I've tried going from 064 to 065 and I keep getting a system failure (I forgot the name of the error, but I will try again in the next few days).
I don't mind spending time on updating, but it's getting frustrating for me
Of course, I'm now back and riding on 064, which works great, but eventually I want to upgrade to 065. If there is someone in this thread who can convert my EFI to 065 (and show me how) that would be highly, highly appreciated. I would even write an tutorial on how to do it and share it (with printscreens etc.), once I 100% understand how to do it.