Description of Preview of Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, and 4.7.2 for Windows 7 SP1 and Server 2008 R2 SP1 and for .NET Framework 4.6 for Server 2008 SP2 (KB 4467088)

Applies to: .NET Framework

Introduction


This November 2018 update for Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1 includes cumulative reliability improvements in .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, and 4.7.2. Additionally, this update for Windows Server 2008 SP2 includes cumulative reliability improvements in .NET Framework 4.6 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

  • All updates for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1 and 4.7.2 require that the d3dcompiler_47.dll update is installed. We recommend that you install the included d3dcompiler_47.dll update before you apply this update. For more information about the d3dcompiler_47.dll update, see KB 4019990 for Windows 7 SP1 and Windows Server 2008 R2 SP1. Or, see KB 4019478 for Windows Server 2008 SP2.
  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Quality and reliability improvements


CLR1

  • Fixes an issue that occurs when many processes that use the workstation garbage collection (GC) are running on the same system. In this situation, you may experience high CPU usage. After you apply this fix, the GC no longer calls VirtualAlloc when it runs under workstation GC mode.

SqlClient2

  • Provides an AppContext flag for making the default value of TransparentNetworkIPResolution false in SqlClient connection strings.
WCF3
  • Fixes a System.AccessViolationException that occurs when accessing a disposed X509Certificate2 instance in a rare race condition. The fix defers the service certificate cleanup to GC. The affected scenario is WCF NetTcp bindings using reliable sessions with certificate authentication. Customer can opt-in to the fix by adding the follow AppSetting to the configuration file. Without setting AppSetting to true, existing services won’t be affected by this code change.

    <appSettings>
      <add key="wcf:deferSslStreamServerCertificateCleanup" value="true"/>
    </appSettings>


1 Common Language Runtime (CLR)
2 .NET Framework Data Provider for SQL Server (SqlClient)
3  Windows Communication Foundation (WCF)

Additional information about this update


For more information about this update as it relates to Windows 7 SP1 and Windows Server 2008 R2 SP1, see the following article in the Microsoft Knowledge Base:

4467224 November 2018 Preview of the Quality Rollups for .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, and 4.7.2 for Windows 7 SP1 and Windows Server 20087 R2 SP1 (KB 4467224)

For more information about this update as it relates to Windows Server 2008 SP2, see the following article in the Microsoft Knowledge Base:

4467227 November 2018 Preview of the Quality Rollups for .NET Framework 2.0 SP2, 3.0 SP2, 4.5.2, and 4.6 for Windows Server 2008 SP2 (KB 4467227)

How to get this update


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.

Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

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. Type 4467224 for Windows 7 SP1 and Windows Server 2008 R2 SP1 or type 4467227 for Windows Server 2008 SP2 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 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, or 4.7.2 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 the following previously released updates:

  • For Windows 7 SP1 and Windows Server 2008 R2 SP1, KB 4462500.
  • For Windows Server 2008 SP2, KB 4462503.

File information

The English (United States) version of this update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.

How to obtain help and support for this update