Security and Quality Rollup for .NET Framework 4.8 for Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB4511525)

Applies to: .NET Framework

The August 2019 update for Windows 7 SP1 and Server 2008 R2 SP1 includes cumulative reliability improvements in .NET 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.

Important

  • Starting on August, 2019, updates to .NET Framework 4.6 and later for Windows Server 2008 SP2, Windows Server 2008 R2 SP1, and Windows 7 Server Pack 1 (SP1) require SHA-2 code signing support. To avoid installation issues, make sure that you have all the latest Windows updates installed before you apply this update. For more detailed information about SHA-2 code signing support updates, see KB 4474419.

Quality and reliability improvements


BCL1

Addresses a crash that occurs after enumerating event logs.


1 Bass Class Library (BCL)

Additional information about this update


The following articles contain additional information about this update as it relates to individual product versions.
 
  • 4512193 Description of the Preview of Quality Rollup for .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB4512193)

How to obtain and install the update


Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

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

Method 3: Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

  1. Select Start, select Administrative Tools, and then select Microsoft Windows Server Update Services 3.0.
  2. Expand ComputerName, and then select Action.
  3. Select Import Updates.
  4. WSUS opens a browser window in which you may be prompted to install an ActiveX control. You must install the ActiveX control to continue.
  5. After the ActiveX control is installed, you see the Microsoft Update Catalog screen. Enter 4512193 in the Search box, and then select Search.
  6. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Select Add to add them to your basket.
  7. After you select all the packages that you require, select View Basket.
  8. To import the packages to your WSUS server, select Import.
  9. After the packages are imported, select Close to return to WSUS.

The updates are now available for installation through WSUS.

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.

Update replacement information

This update replaces previously released update 4503865.

File information


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

 

How to obtain help and support for this update