Applies to:

Microsoft .NET Framework 4.8

This update for Windows 8.1, RT 8.1, and Server 2012 R2 includes a fix to an issue introduced in the October 15th Cumulative update. See the Quality and reliability improvements section for more details. Before you install this update, see the Prerequisites and Restart requirement sections.

Important

  • All updates for Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2 require that update KB 2919355 is installed. We recommend that you install update KB 2919355 on your Windows 8.1-based, Windows RT 8.1-based, or Windows Server 2012 R2-based computer so that you receive updates in the future.

  • 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

Address an issue where 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 was the System.AppDomainSetup.TargetFrameworkName is null, leading to any quirks enabling reverting back to .NET Framework 4.0 behaviors.


1 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 KB4519567 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 8.1, RT 8.1, and Server 2012 R2 KB4533004.

How to obtain and install the update

Microsoft Update Catalog

This update is available for download from the Microsoft Update Catalog website.

Prerequisites

To apply this update, you must have .NET Framework 4.8 installed.

Restart requirement

You may have to 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.

File information

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

Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2

Note: The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.


Additional file information

x64 Windows 8.1 and Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

4.8.4067.0

5,439,248

05-Nov-2019

02:07

x64

Normidna.nlp

Not applicable

59,342

26-Jun-2019

22:11

Not applicable

Normnfc.nlp

Not applicable

47,076

26-Jun-2019

22:11

Not applicable

Normnfd.nlp

Not applicable

40,566

26-Jun-2019

22:11

Not applicable

Normnfkc.nlp

Not applicable

67,808

26-Jun-2019

22:11

Not applicable

Normnfkd.nlp

Not applicable

61,718

26-Jun-2019

22:11

Not applicable

Clrjit.dll

4.8.4067.0

1,365,264

05-Nov-2019

02:07

x64

Clr.dll

4.8.4067.0

11,270,424

05-Nov-2019

02:07

x64

Compatjit.dll

4.8.4067.0

1,280,792

05-Nov-2019

02:07

x64

Mscordacwks.dll

4.8.4067.0

1,808,656

05-Nov-2019

02:07

x64

Mscordbi.dll

4.8.4067.0

1,661,712

05-Nov-2019

02:07

x64

Mscorlib.ni.dll

4.8.4067.0

23,084,680

05-Nov-2019

02:09

x64

Peverify.dll

4.8.4067.0

273,176

05-Nov-2019

02:07

x64

Sos.dll

4.8.4067.0

929,256

05-Nov-2019

02:07

x64

Mscorlib.dll

4.8.4067.0

5,678,568

05-Nov-2019

02:09

x86

Normidna.nlp

Not applicable

59,342

26-Jun-2019

22:11

Not applicable

Normnfc.nlp

Not applicable

47,076

26-Jun-2019

22:11

Not applicable

Normnfd.nlp

Not applicable

40,566

26-Jun-2019

22:11

Not applicable

Normnfkc.nlp

Not applicable

67,808

26-Jun-2019

22:11

Not applicable

Normnfkd.nlp

Not applicable

61,718

26-Jun-2019

22:11

Not applicable

Clrjit.dll

4.8.4067.0

561,432

05-Nov-2019

02:09

x86

Clr.dll

4.8.4067.0

8,044,520

05-Nov-2019

02:09

x86

Mscordacwks.dll

4.8.4067.0

1,315,096

05-Nov-2019

02:09

x86

Mscordbi.dll

4.8.4067.0

1,195,800

05-Nov-2019

02:09

x86

Mscorlib.ni.dll

4.8.4067.0

21,044,352

05-Nov-2019

02:09

x86

Peverify.dll

4.8.4067.0

190,464

05-Nov-2019

02:09

x86

Sos.dll

4.8.4067.0

775,136

05-Nov-2019

02:09

x86

x86 Windows 8.1

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

4.8.4067.0

5,678,568

05-Nov-2019

02:09

x86

Normidna.nlp

Not applicable

59,342

26-Jun-2019

22:11

Not applicable

Normnfc.nlp

Not applicable

47,076

26-Jun-2019

22:11

Not applicable

Normnfd.nlp

Not applicable

40,566

26-Jun-2019

22:11

Not applicable

Normnfkc.nlp

Not applicable

67,808

26-Jun-2019

22:11

Not applicable

Normnfkd.nlp

Not applicable

61,718

26-Jun-2019

22:11

Not applicable

Clrjit.dll

4.8.4067.0

561,432

05-Nov-2019

02:09

x86

Clr.dll

4.8.4067.0

8,044,520

05-Nov-2019

02:09

x86

Mscordacwks.dll

4.8.4067.0

1,315,096

05-Nov-2019

02:09

x86

Mscordbi.dll

4.8.4067.0

1,195,800

05-Nov-2019

02:09

x86

Mscorlib.ni.dll

4.8.4067.0

21,044,352

05-Nov-2019

02:09

x86

Peverify.dll

4.8.4067.0

190,464

05-Nov-2019

02:09

x86

Sos.dll

4.8.4067.0

775,136

05-Nov-2019

02:09

x86

Windows RT 8.1

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

4.8.4067.0

5,678,752

05-Nov-2019

02:05

Not applicable

Normidna.nlp

Not applicable

59,342

26-Jun-2019

22:11

Not applicable

Normnfc.nlp

Not applicable

47,076

26-Jun-2019

22:11

Not applicable

Normnfd.nlp

Not applicable

40,566

26-Jun-2019

22:11

Not applicable

Normnfkc.nlp

Not applicable

67,808

26-Jun-2019

22:11

Not applicable

Normnfkd.nlp

Not applicable

61,718

26-Jun-2019

22:11

Not applicable

Clrjit.dll

4.8.4067.0

687,352

05-Nov-2019

02:05

Not applicable

Clr.dll

4.8.4067.0

7,476,176

05-Nov-2019

02:05

Not applicable

Mscordacwks.dll

4.8.4067.0

1,358,824

05-Nov-2019

02:05

Not applicable

Mscordbi.dll

4.8.4067.0

1,212,672

05-Nov-2019

02:05

Not applicable

Mscorlib.ni.dll

4.8.4067.0

22,699,144

05-Nov-2019

02:09

Not applicable

Sos.dll

4.8.4067.0

685,000

05-Nov-2019

02:05

Not applicable

x64 Windows 8.1 and Windows Server 2012 R2

File property

Value

Amd64_12bf98110085a49afe2d40225bea3e0c_b03f5f7f11d50a3a_4.0.9696.16910_none_9f521142e1e65c55.manifest

Not applicable

912

07-Nov-2019

05:42

Not applicable

Amd64_45fce526f62628d66fa22437cde0bdff_b03f5f7f11d50a3a_4.0.9696.16910_none_d0117937189865b3.manifest

Not applicable

922

07-Nov-2019

05:42

Not applicable

Amd64_4ee237ccda81f60511a2b385e1bddc78_b03f5f7f11d50a3a_4.0.9696.16910_none_27ad47028c3484e2.manifest

Not applicable

922

07-Nov-2019

05:42

Not applicable

Amd64_5546b65711e0a1bfbe30c461b35675a2_31bf3856ad364e35_4.0.9696.16910_none_fbc1ada52de42028.manifest

Not applicable

654

07-Nov-2019

05:42

Not applicable

Amd64_6ca4689c671bc28d4a8c98a44200ac31_b77a5c561934e089_4.0.9696.16910_none_61873a79a1e4dd55.manifest

Not applicable

900

07-Nov-2019

05:42

Not applicable

Amd64_7df6fe95f8df50c42789d71af12617a7_b03f5f7f11d50a3a_4.0.9696.16910_none_6a6f51d25616361e.manifest

Not applicable

920

07-Nov-2019

05:42

Not applicable

Amd64_90849f92c7d52c87d48819deb1501cbe_b03f5f7f11d50a3a_4.0.9696.16910_none_5311f12cde58cd40.manifest

Not applicable

918

07-Nov-2019

05:42

Not applicable

Amd64_aef7fefefa8a6256533e177ecc4e748e_b03f5f7f11d50a3a_4.0.9696.16910_none_a9540f86dd020fe5.manifest

Not applicable

928

07-Nov-2019

05:42

Not applicable

Amd64_cb9917a6a030b921bb4562b8b964b112_b03f5f7f11d50a3a_4.0.9696.16910_none_aba21e9b8a8bfa90.manifest

Not applicable

912

07-Nov-2019

05:42

Not applicable

Amd64_mscorlib_b77a5c561934e089_4.0.9696.16910_none_55ef37783b3506cc.manifest

Not applicable

129,186

07-Nov-2019

05:42

Not applicable

Amd64_netfx4-clrjit_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_58d395f30305c6ac.manifest

Not applicable

2,152

07-Nov-2019

05:42

Not applicable

Amd64_netfx4-clr_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_74c355f36dfebb8b.manifest

Not applicable

29,935

07-Nov-2019

05:42

Not applicable

Amd64_netfx4-compatjit_dll_31bf3856ad364e35_4.0.9696.16910_none_b60cfa05491c826c.manifest

Not applicable

2,123

07-Nov-2019

05:42

Not applicable

Amd64_netfx4-mscordacwks_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_1a3c628f826d681b.manifest

Not applicable

3,640

07-Nov-2019

05:42

Not applicable

Amd64_netfx4-mscordbi_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_3bb1016a9535e78b.manifest

Not applicable

2,919

07-Nov-2019

05:42

Not applicable

Amd64_netfx4-mscorlib_ni_b03f5f7f11d50a3a_4.0.9696.16910_none_09f1ca8c494f61da.manifest

Not applicable

2,095

07-Nov-2019

05:42

Not applicable

Amd64_netfx4-peverify_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_6c2458954659dd1c.manifest

Not applicable

2,052

07-Nov-2019

05:42

Not applicable

Amd64_netfx4-sos_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_1bf460a4b3516271.manifest

Not applicable

2,032

07-Nov-2019

05:42

Not applicable

Update.mum

Not applicable

2,176

07-Nov-2019

05:42

Not applicable

X86_mscorlib_b77a5c561934e089_4.0.9696.16910_none_9d9c6e4f4fb12fd2.manifest

Not applicable

110,596

07-Nov-2019

05:18

Not applicable

X86_netfx4-clrjit_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_a080ccca1781efb2.manifest

Not applicable

2,144

07-Nov-2019

05:18

Not applicable

X86_netfx4-clr_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_bc708cca827ae491.manifest

Not applicable

29,927

07-Nov-2019

05:18

Not applicable

X86_netfx4-mscordacwks_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_61e9996696e99121.manifest

Not applicable

3,622

07-Nov-2019

05:18

Not applicable

X86_netfx4-mscordbi_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_835e3841a9b21091.manifest

Not applicable

2,911

07-Nov-2019

05:18

Not applicable

X86_netfx4-mscorlib_ni_b03f5f7f11d50a3a_4.0.9696.16910_none_519f01635dcb8ae0.manifest

Not applicable

2,087

07-Nov-2019

05:18

Not applicable

X86_netfx4-peverify_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_b3d18f6c5ad60622.manifest

Not applicable

2,044

07-Nov-2019

05:18

Not applicable

X86_netfx4-sos_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_63a1977bc7cd8b77.manifest

Not applicable

2,024

07-Nov-2019

05:18

Not applicable

x86 Windows 8.1

File property

Value

Update.mum

Not applicable

1,762

07-Nov-2019

05:19

Not applicable

X86_02d46d747a03c29f1e846f4eca122c4b_b03f5f7f11d50a3a_4.0.9696.16910_none_49369da86ca3d4a1.manifest

Not applicable

630

07-Nov-2019

05:19

Not applicable

X86_3bdff13a66885dff8cf6f3b100cf0250_b03f5f7f11d50a3a_4.0.9696.16910_none_a86db03211f7553a.manifest

Not applicable

622

07-Nov-2019

05:19

Not applicable

X86_4afefdb131563228e0f2279be6046e26_b03f5f7f11d50a3a_4.0.9696.16910_none_4aca397f834ccedc.manifest

Not applicable

627

07-Nov-2019

05:19

Not applicable

X86_8c9734f11fa81b4b87e4ebb917d44924_b03f5f7f11d50a3a_4.0.9696.16910_none_d5aa4689c18fd05d.manifest

Not applicable

625

07-Nov-2019

05:19

Not applicable

X86_8e0dfcd5fda26fef810f1878c929073f_b03f5f7f11d50a3a_4.0.9696.16910_none_3baca03ff877b925.manifest

Not applicable

627

07-Nov-2019

05:19

Not applicable

X86_b6b0ae33f919ec74a95c90cecc54291d_b77a5c561934e089_4.0.9696.16910_none_18f2f360a6a8dd5e.manifest

Not applicable

616

07-Nov-2019

05:19

Not applicable

X86_d89fa322e76b4e357d5c26de9f329b9c_b03f5f7f11d50a3a_4.0.9696.16910_none_94488d63d0c57af7.manifest

Not applicable

622

07-Nov-2019

05:19

Not applicable

X86_f0e23a3065134c19754331bb714463f2_b03f5f7f11d50a3a_4.0.9696.16910_none_2db047793e83c87a.manifest

Not applicable

626

07-Nov-2019

05:19

Not applicable

X86_mscorlib_b77a5c561934e089_4.0.9696.16910_none_9d9c6e4f4fb12fd2.manifest

Not applicable

110,596

07-Nov-2019

05:18

Not applicable

X86_netfx4-clrjit_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_a080ccca1781efb2.manifest

Not applicable

2,144

07-Nov-2019

05:18

Not applicable

X86_netfx4-clr_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_bc708cca827ae491.manifest

Not applicable

29,927

07-Nov-2019

05:18

Not applicable

X86_netfx4-mscordacwks_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_61e9996696e99121.manifest

Not applicable

3,622

07-Nov-2019

05:18

Not applicable

X86_netfx4-mscordbi_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_835e3841a9b21091.manifest

Not applicable

2,911

07-Nov-2019

05:18

Not applicable

X86_netfx4-mscorlib_ni_b03f5f7f11d50a3a_4.0.9696.16910_none_519f01635dcb8ae0.manifest

Not applicable

2,087

07-Nov-2019

05:18

Not applicable

X86_netfx4-peverify_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_b3d18f6c5ad60622.manifest

Not applicable

2,044

07-Nov-2019

05:18

Not applicable

X86_netfx4-sos_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_63a1977bc7cd8b77.manifest

Not applicable

2,024

07-Nov-2019

05:18

Not applicable

Windows RT 8.1

File property

Value

Arm_116d18252dfc5265487ea9b3c92e0a48_b03f5f7f11d50a3a_4.0.9696.16910_none_610f3cb5ac82d702.manifest

Not applicable

625

07-Nov-2019

05:45

Not applicable

Arm_1730662d37ba82b383648838e57ef71f_b03f5f7f11d50a3a_4.0.9696.16910_none_963aeb41469b3999.manifest

Not applicable

622

07-Nov-2019

05:45

Not applicable

Arm_81ce8a067425f2c2b59bc8fad25bcb1b_b03f5f7f11d50a3a_4.0.9696.16910_none_9d9245fceb67c05e.manifest

Not applicable

630

07-Nov-2019

05:45

Not applicable

Arm_8ce97b31d2dfeffcd9bf98cf76751e82_b03f5f7f11d50a3a_4.0.9696.16910_none_95315345830f9c60.manifest

Not applicable

622

07-Nov-2019

05:45

Not applicable

Arm_9340f8ff9051ec1daaf49db8cc788cd3_b77a5c561934e089_4.0.9696.16910_none_b9d122577c13cb02.manifest

Not applicable

616

07-Nov-2019

05:45

Not applicable

Arm_9bac7647b4622fbc1d3000495b5e9c71_b03f5f7f11d50a3a_4.0.9696.16910_none_53dbb1d237749eb8.manifest

Not applicable

626

07-Nov-2019

05:45

Not applicable

Arm_bfbda167a140c5e1ebe207b875b2b45b_b03f5f7f11d50a3a_4.0.9696.16910_none_3ec4d827d0fcd877.manifest

Not applicable

627

07-Nov-2019

05:45

Not applicable

Arm_mscorlib_b77a5c561934e089_4.0.9696.16910_none_9d9c3aeb4fb181bc.manifest

Not applicable

110,596

07-Nov-2019

05:45

Not applicable

Arm_netfx4-clrjit_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_a08099661782419c.manifest

Not applicable

2,144

07-Nov-2019

05:45

Not applicable

Arm_netfx4-clr_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_bc705966827b367b.manifest

Not applicable

29,927

07-Nov-2019

05:45

Not applicable

Arm_netfx4-mscordacwks_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_61e9660296e9e30b.manifest

Not applicable

3,622

07-Nov-2019

05:45

Not applicable

Arm_netfx4-mscordbi_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_835e04dda9b2627b.manifest

Not applicable

2,911

07-Nov-2019

05:45

Not applicable

Arm_netfx4-mscorlib_ni_b03f5f7f11d50a3a_4.0.9696.16910_none_519ecdff5dcbdcca.manifest

Not applicable

2,087

07-Nov-2019

05:45

Not applicable

Arm_netfx4-sos_dll_b03f5f7f11d50a3a_4.0.9696.16910_none_63a16417c7cddd61.manifest

Not applicable

2,024

07-Nov-2019

05:45

Not applicable

Update.mum

Not applicable

1,762

07-Nov-2019

05:45

Not applicable

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