October 26, 2023-KB5031905 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2
Applies To
.NETRevised July 7, 2025: Updated 'How to get this update' section.Â
Release Date:
October 26, 2023Version:
.NET Framework 3.5 and 4.8.1Summary
This article describes the security and Cumulative Update for 3.5 and 4.8.1 for Windows 11, version 22H2.
Security Improvements
There are no new security improvements in this release. This update is cumulative and contains all previously released security improvements.
Quality and Reliability Improvements
For a list of improvements that were released with this update, please see the article links in the Additional Information section of this article.
Known issues in this update
Microsoft is not currently aware of any issues in this update.
Additional information about this update
The following articles contain additional information about this update as it relates to individual product versions.
-
5031817 Description of the Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2Â (KB5031817)
How to get this update
Release Channel |
Available |
Next Step |
Windows Update and Microsoft Update |
No |
See note |
Windows Update for Business |
No |
See note |
Microsoft Update Catalog |
No |
See note |
Windows Server Update Services (WSUS) |
No |
See note |
Note: This update is no longer available. At this time, no functional issues have been reported with this update. To ensure your device continues to receive the latest security updates and quality improvements, we recommend installing the most recent cumulative update.
How to obtain help and support for this update
-
Help for installing updates: Windows Update FAQ
-
Protect yourself online and at home: Windows Security support
-
Local support according to your country: International Support