Meh, I'll have new PC in the first days of the year, so I don't even have to worry too much about fresh install. If 4.86 gets released in time (as in, today), I'll just deactivate 4.85 and try to install 4.86 over it. If it doesn't work, I won't bother about it and wait to make the fresh install on the new PC.
Cmon guys, waiting IS possible. All this frenzy only makes the wait feel longer. Calm down and relax, and you'll see it coming in no time!