Re: Windows Update service
http://i.imgur.com/uw7gA1M.jpg
I think Pro allows you to have the option to defer updates (8 months max?). I believe the Home edition does not even allow you to defer updates.
It'll be interesting to find out how this works in offline environments, or where data bandwidth is limited. Bet you didn't think of these while developing Windows 10 eh, Mr Nadella?