I find it somewhat amusing that this should pop up while I’m on vacation (although I don’t expect it to actually be available in Portugal on the 28th). Every time there’s a major OS relesse I keep telling myself I’ll wait until x.1 instead of dealing with .0 bugs, and every time I set it up on a test machine within a month. This year, thanks to the ease of access to my MacBook internals, I’m planning to do it on a replacement internal drive - and I sure hope the upgrade disc can install on a completely blank machine…