Windows 11 build 21319

Windows 10 build 21319.1000 is an unleaked build of Cobalt. Several screenshots of Windows Terminal running in this build were posted to GitHub by a Microsoft employee in February and March 2021. A screenshot of Command Prompt running in Windows Preinstallation Environment of this build was later shown in a blog article "Windows Recovery Environment explained" posted to Microsoft Tech Community by a Microsoft employee on 14 April 2021.