[KJ44]

My suggestion, in two words:

Be patient.

Firstly, the servers will take a hammering. Secondly, if there are any nasty surprises with the latest release, this forum will soon enough have several threads with the workarounds.

I know this sounds selfish, but it isn't. There are always those who will blaze a trail for the rest of us and do it well because they can sort things out themselves.

If you're a newbie, just give it a few days before upgrading, and there will be solutions on here for your problems. If you rush in, you could be without your machine for a few days.