Applies To.NET

Release Date:October 12, 2021

Version: .NET Framework 4.8

The October 12, 2021 update for Windows 10, version 1607 and Windows Server, version 2016 includes cumulative reliability improvements in .NET Framework 4.8. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisites and Restart requirement sections.

Quality and reliability improvements

CLR1

- The existing memory pressure algorithm used in the GC.AddMemoryPressure API is triggering induced GC too aggressively. This update provides an alternative algorithm that is less aggressive. An application can opt into the new algorithm, by setting:

COMPlus_GCNewMemoryPressure environment variable to 1

This is applicable for any application that use the GC.AddMemoryPressure API.

1 Common Language Runtime (CLR)

How to get this update

Install this update

Release Channel

Available

Next Step

Windows Update and Microsoft Update

Yes

To download and install this update, go to Settings > Update & Security > Windows Update, and then select Check for updates.

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows Server Update Services (WSUS)

Yes

This update will automatically sync with WSUS if you configure Products and Classifications as follows:

Product: Windows 10, version 1607 and Windows Server, version 2016

Classification: Updates

File information

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

Known issues in this update

Microsoft is not currently aware of any issues in this update.

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.