Fall Update Details

There is much to know about the Win 10 "Fall Update" and this article from Windows Secrets by Tracey Capen is important reading:

The much-anticipated fall update for Windows l0 has arrived. If you're looking for significant changes, you're going to be disappointed.

Version 1511 is an important update, but many of the enhancements are either buried in the Settings menus or under the hood.

The latest Win10, aka Fall Update, is far from a routine patch. According to Microsoft, it's about a 3GB download, and on my test system it took around three hours for the full installation. And though it was officially released on Nov. 12, it could take days before it shows up on individual machines. On my test system, the update arrived sometime over the weekend; on my personal system, I received a notification but no actual update — yet.

Aside from Microsoft throttling the release of the update, there are other reasons you might not see Version 1511, according to a MS FAQ.

See the whole article here:  Windows 10 gets its first big update