Maybe you are one of the users waiting for the newly updated WSUS Offline Community Edition build 12.6.1.
As you can see, just before the end of the year, going into 2022, you can download the new package.
The developers announced that support for Windows 10 version 2004 is removed since Microsoft discontinued support for it on December 14th, 2021.
The new package contains support for .NET 6, and a lot of other stuff got updated or improved. You can read about this in the changelog down below.
Changed, Fixed or Improved in WSUS Offline Community Edition 12.6.1
- Improved mechanism for enforced “feature upgrades via enablement package” mechanism (Thanks to “aker”)
- Improved reliability of DownloadUpdates.cmd in handling file names / URLs with spaces inside (Thanks to “aker”)
- misc. improvements to InstallOSUpdate.cmd and InstallOfficeUpdate.com (Thanks to “aker”)
- Rewrite the complete code related to the installation of .NET 5 and C++ (Thanks to “aker”)
- Changed command line for updating Edge Updater to be more similar to what Edge does (Thanks to “aker”)
- Links to .NET 4.8 updated to fetch the updated files released 2021 (signing date 2021-05-01) (Thanks to “aker”)
- .NET 5 updated to version 5.0.13
- Support added for .NET 6 (Thanks to “aker”)
- C++ 2015-2022 Redistributable Runtime Libraries updated to v. 14.30.30704.0 (Thanks to “aker”)
- November 2021 to December 2021 updates added to ‘security only’ lists for Windows 8.1 and Server 2012 / 2012 R2 (x86/x64) systems
- November 2021 to December 2021 updates added to version-specific blacklists for Windows 10 and Server 2016 / 2019 /2022 (x86/x64) systems
- Fix: Cosmetic issue enabling Build 20438 for x86 in UpdateGenerator (Thanks to “aker”)
- Fix: Removed erroneously displayed error message(s) in DownloadUpdates.cmd (Thanks to “aker”)
- Fix: DetermineSystemProperties.vbs might fail to detect Office installations, if only some components (e.g. Lync or Groove) are installed (Thanks to “jmcaree”)