Applies to:

Microsoft .NET Framework 4.8

The October 15, 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

Addresses an issue with ValidationContext.MemberName when using custom DataAnnotation.ValidationAttribute.

WPF1

Addresses and issue where software rendering fails to draw images whose position and scaling are too large. For example, an Image element with Width=10, sourced to a bitmap with width=500 and positioned 700 pixels from the left edge of the enclosing window, fails to appear because the scaling factor S = 500/10 = 50 and the position X=700 are too large, in the sense that their product S * X = 50 * 700 = 35000 exceeds 2^15 = 32768.

CLR2

Reduces the risk of returning unordered ConstructorInfo's from Type.GetConstructors().

Improved behavior in scenarios where external bugs (such as a double-free) prevent underlying OS threads from starting. The runtime now fails with a diagnostic error rather than hanging waiting for the thread to start. This allows better failure recovery and better diagnostics of the problem that caused the failure.

Addresses and issue with late bound .NET COM calls containing SafeArrays where the SafeArray is not fully initialized.

Winforms

Addresses an issue that prevented navigation to the last item of the dropped-down menu item by single up-arrow key press.

Addresses and issue where the property grid can throw a NullReferenceException when selection changes to null (nothing is selected) in response to value changes


1 Windows Presentation Foundation (WPF)
2 Common Language Runtime (CLR)

Additional information about this update

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

  • 4520406 Description of the Preivew 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 Server 2008 R2 SP1 and Server 2008 (KB4520406)

Known Issues in this update

Symptoms:

After applying this October 15th Preview of Quality Rollup for .NET Framework 4.8, some 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 is the System.AppDomainSetup.TargetFrameworkName (https://docs.microsoft.com/en-us/dotnet/api/system.appdomainsetup.targetframeworkname?view=netframework-4.8) is null, leading to any quirks enabling reverting back to .NET Framework 4.0 behaviors.

Workaround:

Customers observing new unexpected failures or functional issues can implement an application setting by adding (or merging) the following section to your application config file:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
      <runtime>
          <AppContextSwitchOverrides value="Switch.System.Reflection.DoNotForceOrderOfConstructors=true" />
      </runtime>
</configuration>

Resolution

To resolve this issue install update for .NET Framework 4.8 for Windows 7 SP1 and Server 2008 R2 SP1 KB4533005.

How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. Go to Settings > Update and Security > Windows Update, and then select Check for updates. For more information about how to get preview updates, 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. Type 4520406 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 4516551.

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 NDP48

File name

File version

File size

Date

Time

Platform

Dhtmlheader.html

Not applicable

16,118

25-Jun-2019

23:20

Not applicable

Header.bmp

Not applicable

7,306

25-Jun-2019

23:04

Not applicable

Ndp48-kb4519568.msp

Not applicable

21,843,968

13-Sep-2019

00:25

Not applicable

Parameterinfo.xml

Not applicable

61,158

13-Sep-2019

07:09

Not applicable

Setup.exe

14.8.4042.0

129,328

12-Sep-2019

21:20

x86

Setupengine.dll

14.8.4042.0

923,928

12-Sep-2019

21:20

x86

Setupui.dll

14.8.4042.0

351,000

12-Sep-2019

21:20

x86

Setupui.xsd

Not applicable

32,572

15-Jul-2019

02:09

Not applicable

Setuputility.exe

14.8.4042.0

311,160

12-Sep-2019

21:20

x86

Splashscreen.bmp

Not applicable

196,662

25-Jun-2019

23:21

Not applicable

Sqmapi.dll

6.2.9200.16384

226,456

25-Jun-2019

23:17

x86

Strings.xml

Not applicable

14,092

25-Jun-2019

23:21

Not applicable

Uiinfo.xml

Not applicable

36,428

25-Jun-2019

23:21

Not applicable

Watermark.bmp

Not applicable

110,348

25-Jun-2019

23:04

Not applicable

Eula.rtf

Not applicable

124,495

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

79,996

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

31,000

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

160,295

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

68,564

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

27,928

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

132,348

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

85,628

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

131,637

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

83,202

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

111,186

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

87,944

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

33,048

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

142,041

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

90,134

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

33,560

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

128,314

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

82,766

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

31,000

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

137,247

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

83,690

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

156,440

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

87,542

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

33,048

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

146,392

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

78,194

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

30,488

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

158,420

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

86,630

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

33,048

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

147,275

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

85,478

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,536

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

155,616

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

74,568

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

28,952

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

259,432

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

72,820

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

28,440

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

137,812

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

85,028

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

33,048

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

148,376

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

84,512

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

31,512

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

151,635

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

87,426

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,536

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

137,226

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

84,286

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

188,741

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

86,088

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,536

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

149,236

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

83,212

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

140,171

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

83,166

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

146,273

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

68,502

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

27,416

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

147,662

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

85,990

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,536

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

129,883

25-Jun-2019

23:04

Not applicable

Localizeddata.xml

Not applicable

85,264

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,536

12-Sep-2019

21:27

x86

Print.ico

Not applicable

126,132

25-Jun-2019

23:20

Not applicable

Rotate1.ico

Not applicable

143,901

25-Jun-2019

23:20

Not applicable

Rotate10.ico

Not applicable

143,932

25-Jun-2019

23:20

Not applicable

Rotate2.ico

Not applicable

144,110

25-Jun-2019

23:20

Not applicable

Rotate3.ico

Not applicable

144,151

25-Jun-2019

23:20

Not applicable

Rotate4.ico

Not applicable

144,033

25-Jun-2019

23:20

Not applicable

Rotate5.ico

Not applicable

143,871

25-Jun-2019

23:20

Not applicable

Rotate6.ico

Not applicable

143,881

25-Jun-2019

23:20

Not applicable

Rotate7.ico

Not applicable

144,084

25-Jun-2019

23:20

Not applicable

Rotate8.ico

Not applicable

143,835

25-Jun-2019

23:20

Not applicable

Rotate9.ico

Not applicable

144,064

25-Jun-2019

23:20

Not applicable

Save.ico

Not applicable

126,548

25-Jun-2019

23:20

Not applicable

Setup.ico

Not applicable

126,246

25-Jun-2019

23:20

Not applicable

Stop.ico

Not applicable

190,199

25-Jun-2019

23:20

Not applicable

Sysreqmet.ico

Not applicable

136,313

25-Jun-2019

23:20

Not applicable

Sysreqnotmet.ico

Not applicable

143,990

25-Jun-2019

23:20

Not applicable

Warn.ico

Not applicable

199,341

25-Jun-2019

23:20

Not applicable

x64 NDP48

File name

File version

File size

Date

Time

Platform

Dhtmlheader.html

Not applicable

16,118

15-Jul-2019

02:09

Not applicable

Header.bmp

Not applicable

7,306

19-Apr-2018

17:11

Not applicable

Ndp48-kb4519568.msp

Not applicable

35,299,328

13-Sep-2019

00:40

Not applicable

Parameterinfo.xml

Not applicable

61,158

13-Sep-2019

07:09

Not applicable

Setup.exe

14.8.4042.0

129,328

12-Sep-2019

21:20

x86

Setupengine.dll

14.8.4042.0

923,928

12-Sep-2019

21:20

x86

Setupui.dll

14.8.4042.0

351,000

12-Sep-2019

21:20

x86

Setupui.xsd

Not applicable

32,572

15-Jul-2019

02:09

Not applicable

Setuputility.exe

14.8.4042.0

311,160

12-Sep-2019

21:20

x86

Splashscreen.bmp

Not applicable

196,662

19-Apr-2018

17:17

Not applicable

Sqmapi.dll

6.2.9200.16384

226,456

15-Jul-2019

02:08

x86

Strings.xml

Not applicable

14,092

19-Apr-2018

17:17

Not applicable

Uiinfo.xml

Not applicable

36,428

19-Apr-2018

17:17

Not applicable

Watermark.bmp

Not applicable

110,348

19-Apr-2018

17:11

Not applicable

Eula.rtf

Not applicable

124,495

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

79,996

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

31,000

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

160,295

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

68,564

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

27,928

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

132,348

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

85,628

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

131,637

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

83,202

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

111,186

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

87,944

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

33,048

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

142,041

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

90,134

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

33,560

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

128,314

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

82,766

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

31,000

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

137,247

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

83,690

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

156,440

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

87,542

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

33,048

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

146,392

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

78,194

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

30,488

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

158,420

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

86,630

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

33,048

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

147,275

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

85,478

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,536

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

155,616

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

74,568

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

28,952

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

259,432

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

72,820

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

28,440

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

137,812

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

85,028

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

33,048

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

148,376

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

84,512

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

31,512

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

151,635

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

87,426

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,536

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

137,226

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

84,286

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

188,741

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

86,088

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,536

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

149,236

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

83,212

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

140,171

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

83,166

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,024

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

146,273

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

68,502

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

27,416

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

147,662

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

85,990

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,536

12-Sep-2019

21:27

x86

Eula.rtf

Not applicable

129,883

15-Jul-2019

02:04

Not applicable

Localizeddata.xml

Not applicable

85,264

13-Sep-2019

00:08

Not applicable

Setupresources.dll

14.8.4042.0

32,536

12-Sep-2019

21:27

x86

Print.ico

Not applicable

126,132

15-Jul-2019

02:09

Not applicable

Rotate1.ico

Not applicable

143,901

15-Jul-2019

02:09

Not applicable

Rotate10.ico

Not applicable

143,932

15-Jul-2019

02:09

Not applicable

Rotate2.ico

Not applicable

144,110

15-Jul-2019

02:09

Not applicable

Rotate3.ico

Not applicable

144,151

15-Jul-2019

02:09

Not applicable

Rotate4.ico

Not applicable

144,033

15-Jul-2019

02:09

Not applicable

Rotate5.ico

Not applicable

143,871

15-Jul-2019

02:09

Not applicable

Rotate6.ico

Not applicable

143,881

15-Jul-2019

02:09

Not applicable

Rotate7.ico

Not applicable

144,084

15-Jul-2019

02:09

Not applicable

Rotate8.ico

Not applicable

143,835

15-Jul-2019

02:09

Not applicable

Rotate9.ico

Not applicable

144,064

15-Jul-2019

02:09

Not applicable

Save.ico

Not applicable

126,548

15-Jul-2019

02:09

Not applicable

Setup.ico

Not applicable

126,246

15-Jul-2019

02:09

Not applicable

Stop.ico

Not applicable

190,199

15-Jul-2019

02:09

Not applicable

Sysreqmet.ico

Not applicable

136,313

15-Jul-2019

02:09

Not applicable

Sysreqnotmet.ico

Not applicable

143,990

15-Jul-2019

02:09

Not applicable

Warn.ico

Not applicable

199,341

15-Jul-2019

02:09

Not applicable

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