https://wccftech.com/windows-10-21h2-release-preview-gets-build-19044-1679-kb5011831/

Along with releasing a new update for Release Preview Channel Insiders currently running Windows 11 on their devices, Microsoft has also dropped Windows 10 21H2 Build 19044.1679 (KB5011831). Both these updates are packed full of improvements and fixes.

Release notes for Windows Build 19044.1679 are shared in this piece; for details on Windows 11 Build 22000.651 (KB5012643), head over to this link.