From bleepingcomputer.com
Microsoft has released Windows 10 Insider Preview Build 18298 (19H1) to insiders in the Fast ring. This build contains numerous new features and improvements including the ability to setup a security keydirectly from the Sign-in options screen, a new file explorer icon, Start Menu changes, mouse cursor options, and more.
If you are a Windows Insider in the Fast ring, you can update to this build 18298 by going into Settings -> Update & Security -> Windows Update and then checking for new updates.