Microsoft has released Windows 10 Insider Preview Build 18309 (19H1) to insiders in the Fast ring. This build primarily focuses on bringing the password-less sign-in options they were testing with Windows 10 Home users. Microsoft added 11 additional mouse pointer sizes in the Cursor and Pointers settings. Narrator improvements include additional voices, Home navigation, ability to read current character phonetics, and other improvements such as reading and navigating experiences with Chrome and Narrator. Microsoft also fixed two issues resulting green screens citing an issue with win32kfull.sys in recent builds one when using an Xbox controller with your PC.
Source: https://www.bleepingcomputer.com/news/microsoft/windows-10-insider-build-18309-released-with-more-password-less-sign-in-options/