Aul's announcement includes a couple of highlights, neither of which is particularly earth-shattering:
The exact method for setting "your preferences" isn't described and, frankly, I see little change from Windows 10 RTM. Your eye may be better than mine.
That's the kind of under-the-covers improvement that will no doubt prove worthwhile for those with little memory, but I couldn't see any immediate difference at all on two test machines, one with 4 GB and one running 8 GB.
Aul also notes known problems with mobile hotspots, and a video playback problem with the Movies & TV app, which needs to be updated from the Store.
For those of you on the bleeding edge, welcome to the future.
Woody Leonhard