Starting at 2:00 p.m. PST today, members of the Xbox One Preview Alpha Ring will begin receiving the latest 1908 Xbox One system update (Build: 19H1_RELEASE_XBOX_DEV_1908\18362.6044.190719-1520).

DETAILS:
  • OS version released: 19H1_RELEASE_XBOX_DEV_1908\18362.6044.190719-1520
  • Available: 2:00PM PDT 7/22/19
  • Mandatory Date/Time: 3:00 AM PDT 7/23/19

Fixes:

System
  • Various stability fixes to the system.

Known Issues:

Community
  • Some users are experiencing and issue where the Dashboard reloads completely when navigating to the Community tab.

Audio
  • Headsets are not being assigned to the users’ profiles and not working correctly.

Profile Color
  • Sometimes users may encounter the incorrect Profile color when powering on the console.


Source: July 22nd : New Preview Alpha Ring 1908 Update (1908.190719-1520) - Xbox Wire