Windows 10 build 17728 now rolling out for Insiders in the Fast ring

[Windows Central]

Another week, another Insider Preview build for us to test! Today's build is 17728, and features under the hood improvements and changes to Narrator.
We're back with another Windows 10 Redstone 5 build for Insiders in the Fast ring today, bringing with it more improvements and enhancements to the OS. We're now at that point in development where new builds don't really include new features, so today's changelog is a little sparse.

Full story from the WindowsCentral blog...