https://wccftech.com/windows-10-build-21390-gets-another-cumulative-update-kb5004092/

Image: @WindowsInsider (Twitter)

Microsoft's Windows development team has released another smaller update for Insiders in the Dev Channel. Windows 10 Cumulative Update Build 21390.1010 (KB5004092) doesn't include anything new as it's designed to test the servicing pipeline.