Starting at 2:00 p.m. PST today, members of the Xbox One Preview Beta Ring will begin receiving the latest 1907 Xbox One system update (Build: 19H1_RELEASE_XBOX_DEV_1907\18362.5039.190621-1520).

DETAILS:
  • OS version released: 19H1_RELEASE_XBOX_DEV_1907\18362.5039.190621-1520
  • Available: 2:00PM PDT 6/26/19
  • Mandatory Date/Time: 3:00 AM PDT 6/27/19

Fixes:

System
  • Stability fixes to the system.
  • Various Localization fixes.

My Games and Apps
  • Performance fixes to My Games and Apps.

Known Issues:

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: June 26th : New Preview Beta & Delta Ring 1907 Update (1907.190621-1520) - Xbox Wire