Windows 10 build 20324.1000

Windows 10 build 21324.1000 is a build of Iron, the 21H2 development semester of Windows as a service. It was mentioned in the file  in the Windows Driver Kit for Windows Server 2022 build 20344.

vsixversion.txt
\\winbuilds\release\fe_release_prs\20324.1000.210329-1100