What's new in this build? Quite a lot actually; here's the highlights from Microsoft's list:

More changes and improvements to Edge - there's now the ability to "Mute" a tab (such as when opening those sites that start an annoying video advert).

There's lots of changes regarding input and typing, especially for Japanese character sets.

You can now buy Microsoft hardware from the Windows Store (if you're in the UK, US or a couple of other places)

Oh, and there's a nice feature called Near Share (only works with Windows 10 builds of 17035 or greater) allowing wireless sharing of data between two machines in close proximity.

The full Microsoft release notes are here: https://blogs.windows.com/windowsexperience/2017/11/08/announcing-windows-10-insider-preview-build-17035-pc/#qFAA8CXrAT4lYO3X.97