It started earlier today for nonbranded phones (and o2 I think).
The update is 617MB and wifi is recommended of course. Did it on 4G LTE since I just couldn’t wait (and didn’t have any wifi at all around me). Was a bit of a test for the LTE connection as well, but it downloaded it in about 5½ minutes which is pretty good.
So, how’s the update? It’s pretty good. It doesn’t bring many new things, sine 4.4.3 is mostly “under the hood” type things.
So, what’s in it? Will do a separate post on this.