November 10, 2020-KB4580980 Cumulative Update Preview for .NET Framework 3.5 and 4.8 for Windows 10 , version 1903, Windows Server, version 1903, Windows 10 , version 1909, and Windows Server, version 1909

Release Date:
November 10, 2020

Version:
.NET Framework 3.5 and 4.8

Note On Jan 12, 2020, a live revision was made to this update to remove its supersedence relationship with the October 13, 2020, .NET Framework security updates. If you have already installed this update, the October 13 .NET Framework updates, or any later .NET Framework updates, you do not have to take any action to be up-to-date for the latest .NET Framework security updates. See the “Update replacement information” section in this article for more information for WSUS administrators.

WSUS administrators who cannot install this update and have to reinstate the October 13, 2020, KB 4578974 security update, if it was declined, can follow this guidance: Reinstating declined updates. Then, they should run an update synchronization within their Microsoft Endpoint Configuration Manager, or update management environments, as applicable.