Security and Quality Rollup for .NET Framework 4.8 for Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB4533005)

Applies to:

Microsoft .NET Framework 4.8

The December 10, 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 in August, 2019, updates to .NET Framework 4.6 and above, for Windows Server 2008 SP2, Windows Server 2008 R2 SP1, and Windows 7SP1, require SHA-2 Code signing support. Please make sure that you have all the latest Windows Updates before applying this update to avoid installation issues. For more detailed information about SHA-2 code signing support updates, please see KB 4474419.

Quality and reliability improvements

ASP.NET

ASP.NET now emits a SameSite cookie header when HttpCookie.SameSite value is "None" to accommodate upcoming changes to SameSite cookie handling in Chrome. As part of this change, FormsAuth and SessionState cookies  are also issued with SameSite = 'Lax' instead of the previous default of 'None', though these values can be overridden in web.config. Applications that use these cookies across sites – or with iframes – may see a loss of functionality that will require configuration updates to remedy.

For more information, refer to: https://docs.microsoft.com/en-us/aspnet/samesite/system-web-samesite.

WPF1

Addresses an issue where some Per-Monitor Aware WPF applications that host System-Aware or Unaware child-windows, and run on .NET 4.8, may occasionally encounter a crash with exceptionSystem.Collections.Generic.KeyNotFoundException.

CLR2

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 is null, leading to any quirks enabling reverting back to .NET Framework 4.0 behaviors.


1 Windows Presentation Foundation (WPF)
2 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 KB4519568 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 7 SP1 and Windows Server 2008 R2 SP1 KB4533005.

Additional information about this update

The following articles contain additional information about this update as it relates to individual product versions.

  • 4533095 Description of the Security and 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 (KB4533095)

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 website.

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. Type 4533095 into 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 updates 4524102 and 4524741.

File information

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

x86

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.8.4075.0

43,800

25-Nov-2019

10:32

aspnet_wp.exe

4.8.4075.0

47,608

25-Nov-2019

10:32

clr.dll

4.8.4069.0

8,044,520

25-Nov-2019

10:32

clrjit.dll

4.8.4069.0

561,640

25-Nov-2019

10:32

mscordacwks.dll

4.8.4069.0

1,315,304

25-Nov-2019

10:32

mscordbi.dll

4.8.4069.0

1,196,008

25-Nov-2019

10:32

mscoreei.dll

4.8.4018.0

581,400

25-Nov-2019

10:32

mscorlib.dll

4.8.4069.0

5,678,360

25-Nov-2019

10:32

Placeholder.dll

4.8.4069.0

25,880

25-Nov-2019

10:32

VsVersion.dll

14.8.4069.0

19,224

25-Nov-2019

10:32

PenIMC2_v0400.dll

4.8.4069.0

107,288

25-Nov-2019

10:32

peverify.dll

4.8.4069.0

190,440

25-Nov-2019

10:32

PresentationCore.dll

4.8.4069.0

3,677,464

25-Nov-2019

10:32

PresentationFramework.dll

4.8.4069.0

6,266,648

25-Nov-2019

10:32

PresentationFramework-SystemData.dll

4.8.4069.0

25,584

25-Nov-2019

10:32

PresentationHost_v0400.dll

4.8.4069.0

241,432

25-Nov-2019

10:32

PresentationHost_v0400.dll.mui

4.8.4069.0

85,272

25-Nov-2019

10:32

PresentationNative_v0400.dll

4.8.4069.0

930,584

25-Nov-2019

10:32

ServiceMonikerSupport.dll

4.8.3825.0

31,488

25-Nov-2019

10:32

SMDiagnostics.dll

4.8.3825.0

73,544

25-Nov-2019

10:32

SOS.dll

4.8.4069.0

774,936

25-Nov-2019

10:32

System.Activities.dll

4.8.3825.0

1,533,344

25-Nov-2019

10:32

System.Core.dll

4.8.4069.0

1,557,064

25-Nov-2019

10:32

System.IdentityModel.dll

4.8.3825.0

1,093,960

25-Nov-2019

10:32

System.IdentityModel.Services.dll

4.8.3825.0

198,400

25-Nov-2019

10:32

System.Runtime.Serialization.dll

4.8.3825.0

1,054,112

25-Nov-2019

10:32

System.ServiceModel.Channels.dll

4.8.3825.0

157,744

25-Nov-2019

10:32

System.ServiceModel.Discovery.dll

4.8.3825.0

308,272

25-Nov-2019

10:32

System.ServiceModel.dll

4.8.3825.0

6,386,504

25-Nov-2019

10:32

System.ServiceModel.Internals.dll

4.8.3825.0

253,344

25-Nov-2019

10:32

System.ServiceModel.WasHosting.dll

4.8.3825.0

40,192

25-Nov-2019

10:32

System.Web.ApplicationServices.dll

4.8.4075.0

71,512

25-Nov-2019

10:32

System.Web.Extensions.dll

4.8.4075.0

1,849,992

25-Nov-2019

10:32

System.Workflow.Activities.dll

4.8.3825.0

1,050,368

25-Nov-2019

10:32

System.Workflow.ComponentModel.dll

4.8.3825.0

1,556,528

25-Nov-2019

10:32

System.Workflow.Runtime.dll

4.8.3825.0

502,528

25-Nov-2019

10:32

System.dll

4.8.4001.0

3,560,496

25-Nov-2019

10:32

System.Web.dll

4.8.4075.0

5,416,728

25-Nov-2019

10:32

System.Windows.Controls.Ribbon.dll

4.8.4069.0

747,800

25-Nov-2019

10:32

System.Windows.Forms.dll

4.8.4042.0

5,920,392

25-Nov-2019

10:32

System.Xaml.dll

4.8.4069.0

640,072

25-Nov-2019

10:32

UIAutomationClient.dll

4.8.4069.0

178,456

25-Nov-2019

10:32

UIAutomationClientsideProviders.dll

4.8.4069.0

361,960

25-Nov-2019

10:32

UIAutomationProvider.dll

4.8.4069.0

49,640

25-Nov-2019

10:32

UIAutomationTypes.dll

4.8.4069.0

223,504

25-Nov-2019

10:32

webengine.dll

4.8.4075.0

26,904

25-Nov-2019

10:32

webengine4.dll

4.8.4075.0

572,184

25-Nov-2019

10:32

WindowsBase.dll

4.8.4069.0

1,306,600

25-Nov-2019

10:32

WorkflowServiceHostPerformanceCounters.dll

4.8.3825.0

88,856

25-Nov-2019

10:32

WPFFontCache_v0400.exe.mui

4.8.4069.0

19,736

25-Nov-2019

10:32

WPFFontCache_v0400.exe

4.8.4069.0

27,464

25-Nov-2019

10:32

wpfgfx_v0400.dll

4.8.4069.0

1,626,392

25-Nov-2019

10:32

x64

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.8.4075.0

49,432

25-Nov-2019

10:43

Aspnet_perf.dll

4.8.4075.0

43,800

25-Nov-2019

10:32

aspnet_wp.exe

4.8.4075.0

53,032

25-Nov-2019

10:43

aspnet_wp.exe

4.8.4075.0

47,608

25-Nov-2019

10:32

clr.dll

4.8.4069.0

11,270,632

25-Nov-2019

10:43

clr.dll

4.8.4069.0

8,044,520

25-Nov-2019

10:32

clrjit.dll

4.8.4069.0

1,365,488

25-Nov-2019

10:43

clrjit.dll

4.8.4069.0

561,640

25-Nov-2019

10:32

compatjit.dll

4.8.4069.0

1,281,000

25-Nov-2019

10:43

mscordacwks.dll

4.8.4069.0

1,808,664

25-Nov-2019

10:43

mscordacwks.dll

4.8.4069.0

1,315,304

25-Nov-2019

10:32

mscordbi.dll

4.8.4069.0

1,661,720

25-Nov-2019

10:43

mscordbi.dll

4.8.4069.0

1,196,008

25-Nov-2019

10:32

mscoreei.dll

4.8.4018.0

688,920

25-Nov-2019

10:43

mscoreei.dll

4.8.4018.0

581,400

25-Nov-2019

10:32

mscorlib.dll

4.8.4069.0

5,439,464

25-Nov-2019

10:43

mscorlib.dll

4.8.4069.0

5,678,360

25-Nov-2019

10:32

VsVersion.dll

14.8.4069.0

19,432

25-Nov-2019

10:43

Placeholder.dll

4.8.4069.0

27,920

25-Nov-2019

10:43

Placeholder.dll

4.8.4069.0

25,880

25-Nov-2019

10:32

VsVersion.dll

14.8.4069.0

19,224

25-Nov-2019

10:32

PenIMC2_v0400.dll

4.8.4069.0

128,480

25-Nov-2019

10:43

PenIMC2_v0400.dll

4.8.4069.0

107,288

25-Nov-2019

10:32

peverify.dll

4.8.4069.0

273,176

25-Nov-2019

10:43

peverify.dll

4.8.4069.0

190,440

25-Nov-2019

10:32

PresentationCore.dll

4.8.4069.0

3,653,608

25-Nov-2019

10:43

PresentationCore.dll

4.8.4069.0

3,677,464

25-Nov-2019

10:32

PresentationFramework.dll

4.8.4069.0

6,266,648

25-Nov-2019

10:32

PresentationFramework-SystemData.dll

4.8.4069.0

25,584

25-Nov-2019

10:32

PresentationHost_v0400.dll

4.8.4069.0

310,240

25-Nov-2019

10:43

PresentationHost_v0400.dll.mui

4.8.4069.0

85,480

25-Nov-2019

10:43

PresentationHost_v0400.dll

4.8.4069.0

241,432

25-Nov-2019

10:32

PresentationHost_v0400.dll.mui

4.8.4069.0

85,272

25-Nov-2019

10:32

PresentationNative_v0400.dll

4.8.4069.0

1,171,976

25-Nov-2019

10:43

PresentationNative_v0400.dll

4.8.4069.0

930,584

25-Nov-2019

10:32

ServiceMonikerSupport.dll

4.8.3825.0

34,560

25-Nov-2019

10:43

ServiceMonikerSupport.dll

4.8.3825.0

31,488

25-Nov-2019

10:32

SMDiagnostics.dll

4.8.3825.0

73,544

25-Nov-2019

10:32

SOS.dll

4.8.4069.0

929,048

25-Nov-2019

10:43

SOS.dll

4.8.4069.0

774,936

25-Nov-2019

10:32

System.Activities.dll

4.8.3825.0

1,533,344

25-Nov-2019

10:32

System.Core.dll

4.8.4069.0

1,557,064

25-Nov-2019

10:32

System.IdentityModel.dll

4.8.3825.0

1,093,960

25-Nov-2019

10:32

System.IdentityModel.Services.dll

4.8.3825.0

198,400

25-Nov-2019

10:32

System.Runtime.Serialization.dll

4.8.3825.0

1,054,112

25-Nov-2019

10:32

System.ServiceModel.Channels.dll

4.8.3825.0

157,744

25-Nov-2019

10:32

System.ServiceModel.Discovery.dll

4.8.3825.0

308,272

25-Nov-2019

10:32

System.ServiceModel.dll

4.8.3825.0

6,386,504

25-Nov-2019

10:32

System.ServiceModel.Internals.dll

4.8.3825.0

253,344

25-Nov-2019

10:32

System.ServiceModel.WasHosting.dll

4.8.3825.0

40,192

25-Nov-2019

10:32

System.Web.ApplicationServices.dll

4.8.4075.0

71,512

25-Nov-2019

10:32

System.Web.Extensions.dll

4.8.4075.0

1,849,992

25-Nov-2019

10:32

System.Workflow.Activities.dll

4.8.3825.0

1,050,368

25-Nov-2019

10:32

System.Workflow.ComponentModel.dll

4.8.3825.0

1,556,528

25-Nov-2019

10:32

System.Workflow.Runtime.dll

4.8.3825.0

502,528

25-Nov-2019

10:32

System.dll

4.8.4001.0

3,560,496

25-Nov-2019

10:32

System.Web.dll

4.8.4075.0

5,403,624

25-Nov-2019

10:43

System.Web.dll

4.8.4075.0

5,416,728

25-Nov-2019

10:32

System.Windows.Controls.Ribbon.dll

4.8.4069.0

747,800

25-Nov-2019

10:32

System.Windows.Forms.dll

4.8.4042.0

5,920,392

25-Nov-2019

10:32

System.Xaml.dll

4.8.4069.0

640,072

25-Nov-2019

10:32

UIAutomationClient.dll

4.8.4069.0

178,456

25-Nov-2019

10:32

UIAutomationClientsideProviders.dll

4.8.4069.0

361,960

25-Nov-2019

10:32

UIAutomationProvider.dll

4.8.4069.0

49,640

25-Nov-2019

10:32

UIAutomationTypes.dll

4.8.4069.0

223,504

25-Nov-2019

10:32

webengine.dll

4.8.4075.0

28,952

25-Nov-2019

10:43

webengine.dll

4.8.4075.0

26,904

25-Nov-2019

10:32

webengine4.dll

4.8.4075.0

682,776

25-Nov-2019

10:43

webengine4.dll

4.8.4075.0

572,184

25-Nov-2019

10:32

WindowsBase.dll

4.8.4069.0

1,306,600

25-Nov-2019

10:32

WorkflowServiceHostPerformanceCounters.dll

4.8.3825.0

102,168

25-Nov-2019

10:43

WorkflowServiceHostPerformanceCounters.dll

4.8.3825.0

88,856

25-Nov-2019

10:32

WPFFontCache_v0400.exe.mui

4.8.4069.0

19,736

25-Nov-2019

10:43

WPFFontCache_v0400.exe.mui

4.8.4069.0

19,736

25-Nov-2019

10:32

WPFFontCache_v0400.exe

4.8.4069.0

29,728

25-Nov-2019

10:43

WPFFontCache_v0400.exe

4.8.4069.0

27,464

25-Nov-2019

10:32

wpfgfx_v0400.dll

4.8.4069.0

2,058,216

25-Nov-2019

10:43

wpfgfx_v0400.dll

4.8.4069.0

1,626,392

25-Nov-2019

10:32

How to obtain help and support for this update

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