.NET Framework October 2023 Cumulative Update Preview

Tara Overfield

Today, we are releasing the October 2023 Cumulative Update Preview for .NET Framework.

Quality and Reliability

This release contains the following quality and reliability improvements.

  • Addresses an issue to provide an appconfig mechanism to allow users to extend the list of allowed types in case of XAML/XPS parsing.

1 Windows Presentation Foundation (WPF)

Getting the Update

The Cumulative Update Preview is available via Windows Update and Microsoft Update Catalog.

Customers using Windows 11, version 22H2, you will now find .NET Framework updates on the Settings > Windows Update > Advanced options > Optional updates page.

Advanced system administrators can also take use of the below direct Microsoft Update Catalog download links to .NET Framework-specific updates. Before applying these updates, please ensure that you carefully review the .NET Framework version applicability, to ensure that you only install updates on systems where they apply.

The following table is for Windows 10 and newer versions.

Product Version Cumulative Update
Windows 11, version 22H2
.NET Framework 3.5, 4.8.1 Catalog 5031817
Windows 11, version 22H2 5031905
.NET Framework 3.5, 4.8.1 Catalog 5031817
Windows 10, version 22H2 5031904
.NET Framework 3.5, 4.8 Catalog 5030841
.NET Framework 3.5, 4.8.1 Catalog 5031816


Previous Monthly Rollups

The last few .NET Framework Monthly updates are listed below for your convenience:


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