Windows 10 build 20261.1000

Windows 10 build 20261.1000 is a build of Iron, the 21H1 development semester of Windows as a service, that was mentioned in the file  in the Windows Driver Kit (WDK) of several builds from Windows 10 build 20270 to Windows Server 2022 build 20324.

\\winbuilds\release\FE_RELEASE_PRS\20261.1000.201112-1446