Microsoft published yesterday Windows 10 Insider Preview Build 18329 for Windows Insider in Fast Ring. This is the version in the 19H1 development branch that we expect to arrive in April 2019 as Windows 10 V1903.
The announcement and a description of the new features can be found in the Windows Blog. As a new feature, Microsoft has announced quick access to the top apps during the search. As soon as you open the search, the top apps are displayed, no typing is required!
(Source: Microsoft)
In addition, desktop applications (Win32 apps) can be run on the desktop in Windows Mixed Reality – although I don’t have the fantasy to imagine who needs something like this. This Windows 10 build doesn’t has a watermark nor a expiration date. More details may be read within this Microsoft blog post.