November 13, 2019-KB4530740 Update for .NET Framework 4.8 for Windows 10 Version 1709

Applies to: .NET Framework

This update for Windows 10 Version 1709 includes a fix to an issue introduced in the October 15th Cumulative update. See the Quality and reliability improvements section for more details. Before you install this update, see the Prerequisites and Restart requirement sections.

Quality and reliability improvements


CLR1

Address an issue where ClickOnce applications and 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 is 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. This patch includes improvements to resolve a known issue discussed in KB4519564 that occurs after applying the October Preview of Quality Rollup for .NET Framework 4.8. To resolve this issue, install update for .NET Framework 4.8 for Windows 10 Version 1709 KB4532999.

How to obtain and install the update


Install this update

This update is available as a download on the Microsoft Update Catalog website.

File information

For a list of the files that are provided in this update, download the file information for the update .

Prerequisites

To apply this update, you must have .NET Framework 4.8 installed.

Restart requirement

You must restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.

How to obtain help and support for this update


File Information


The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

Windows 10

Additional file information