.NET Framework November 13, 2019, Update for .NET Framework 4.8

Brett Lopez

Today, we released an update for .NET Framework 4.8 to Microsoft Update Catalog.

Quality and Reliability

This release contains the following reliability improvement.


  • Addresses an issue where some ClickOnce applications or applications creating the default AppDomain with a restricted permission set may observe application launch or application runtime failures, or unexpected behaviors. The observable issue was the System.AppDomainSetup.TargetFrameworkName was null, leading to any quirks enabling reverting back to .NET Framework 4.0 behaviors.

1 Common Language Runtime (CLR)

Known Issues in this update

There are no known issues with this update, however, this update resolves a previous known issue. These updates include improvements to resolve a known issue discussed in October Preview of Quality Rollup that occurs after applying the .NET Framework 4.8 patch. To resolve the known issue issue, install update for .NET Framework 4.8 available in the December 2019 Security and Quality Rollup.

Getting the Update

The update for .NET Framework 4.8 is available via Microsoft Update Catalog for supported versions of Windows. The reliability improvement will be available on all regular distribution channels through upcoming releases.

Microsoft Update Catalog

Windows Version Update for .NET Framework 4.8
Windows 10 1909 and Windows Server, version 1909 Catalog KB4530743
Windows 10 1903 and Windows Server, version 1903 Catalog KB4530743
Windows 10 1809 (October 2018 Update) Windows Server 2019 Catalog KB4530742
Windows 10 1803 (April 2018 Update) Catalog KB4530741
Windows 10 1709 (Fall Creators Update) Catalog KB4530740
Windows 10 1607 (Anniversary Update) Windows Server 2016 Catalog KB4530738
Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2 Catalog KB4530745
Windows Server 2012 Catalog KB4530744
Windows 7 SP1 Windows Server 2008 R2 SP1 Catalog KB4530746

Note: The November 13, 2019 Update for .NET Framework 4.8 is not a cumulative update.

Previous Monthly Rollups

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


Discussion is closed. Login to edit/delete existing comments.

  • Ismail Demir 0

    Hi, why is there no future releases/updaterollups of .Net Framework 3.5 for Windows7?

    Thank you

    • Ismail Demir 0

      … and please put all NetFramework related Updates to one Rollup. There are some Updates that are marked as “superseded” by Update Catalog and should be also marked as “superseded” by WindowsUpdate.

      To avoid supersedences please release one rollup that also to be integrateable.

      Thank you.

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