Microsoft has just released an evening preview of the new overall update for Windows 10 version 2004 and version 20H2. Non-security update KB4598291 includes various bug fixes and improvements. Microsoft lists several bugs in the update history fixed with this update. A list of resolved and unresolved issues in this update can be found at Microsoft. The update brings the Windows 10 version 2004 and 20H2 to OS built-in 19041.789 and 19042.789, and can now be downloaded from the Windows update or from the Microsoft Update list. To download and install the update, go to Settings -> Update & Security -> Windows Update and select Looking for updates And Download and install now Out. Additional information on this update for Windows 10 is available from Microsoft.
Download -> Download the KB4598291 update for Windows 10
Direct download of KB4598291 for Windows 10 from Microsoft here:
More information about KB4598291 for Windows 10 can be found here Microsoft.