The August 13, 2024 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines.

The .NET Framework Repair Tool provides an option to repair the versions of .NET Framework that are installed on the computer (step 3 of the process in the "Repair Tool options" section). The tool requires the redistributable files of those versions to be available at the time of repair.

The October 10, 2023 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines.

.NET 6.0 has been refreshed with the latest update as of August 13, 2024. This update contains both security and non-security fixes. See the release notes for details on updated packages.

The original version of the .NET Framework 3.5 together with the .NET Framework 2.0 SP1 and the .NET Framework 3.0 SP1 are no longer in support. Discusses support life cycle details for the .NET Framework 3.5, .NET Framework 3.0 and .NET Framework 2.0.

January 9, 2024. Version: .NET Framework 3.5, 4.8 and 4.8.1. Summary. This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2. Security Improvements. CVE-2023-36042 – .NET Framework Denial of Service Vulnerability.

To resolve the issue, install update 3005628. To work around this issue, use one of the following workarounds, as appropriate for your situation: Turn on the Microsoft .NET Framework 3.5 feature before you install security update 2966827 or 2966828.

To resolve this problem, you must fix the MSI software update registration corruption issues, or uninstall multiple versions of the .NET Framework by using the .NET Framework Cleanup Tool, and then reinstall those components. To troubleshoot this problem, follow these steps starting with Method 1.

Breaking change details. The .NET Framework servicing update released on July 2024 security and quality rollup - .NET Framework contains a security fix addressed an elevation of privilege vulnerability detailed in CVE 2024-38081. The fix changed System.IO.Path.GetTempPath method return value.

Microsoft .NET Framework 4.8.1 is a highly compatible and in-place update to .NET Framework 4.8. It includes native support for the Arm64 architecture (Windows 11+), accessibility improvements as well as other improvements. For a complete list of improvements see: .NET Framework 4.8.1 release notes.