https://www.bleepingcomputer.com/news/microsoft/windows-11-kb5006674-update-released-with-compatibility-fixes/

Microsoft has released the Windows 11 KB5006674 cumulative update, marking it as the first update for the new operating system since it has been released to the public channel.

The KB5006674 cumulative update contains security updates, performance improvements, and bug fixes for Windows 11 21H2 since it was first released on October 5th.