This is expected to go live with the creator’s update due early 2017 to the masses. The latest build 14959 for mobile is released with this delivery model and PC is expected to follow up soon.
UUP would only be available for PC and smartphones, not for Xbox as Microsoft doesn’t roll updates through windows update.
The size of Windows updates can go down as much as 35 percent, the software giant explained in a blog post. Also, Microsoft is trying to make checking for updates more efficient by reducing the data sent to the client+ decreasing the processing at the client end.
As UUP has still debuted and is currently in beta, more changes and enhancements are expected before it goes live in 2017. A welcome change by Microsoft.