October 8, 2019
.NET Framework 3.5 and 4.8
This update was previously released in the Cumulative Update that's dated September 24, 2019.
This article describes the October 8, 2019 Cumulative Update for Microsoft .NET Framework 4.8 for Windows 10 Version 1903.
Additional information about this update
The following articles contain additional information about this update as it relates to individual product versions.
4515871 Description of the Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 version 1903 and Windows 10 version 1909 (KB4515871)