Yet another preview update is rolling out! Yes, Windows 10 21H1, 20H2, and 2004 are getting KB5003214 as an optional non-security update. This release will change the version numbers of the respective versions to 19043.1021, 19042.1021, and 19041.1021.
The rollout will be available in the Release Preview and Beta channels through Windows Update. However, you can install it manually if you want to. KB release note is not aired whenever it is updated you will get the information here.
KB5003214 Windows 10 21H1, 20H2, and 2004
The changelog will be updated here –
Direct download links –
If you need support then follow this article – How to Install Cab Update via DISM in Windows 10.