Applies to:
Microsoft .NET Framework 4.8
Summary
Security improvements
There are no new security improvements in this release. This update is cumulative and contains all previously released security improvements.
Quality and reliability improvements
|
CLR1 |
- In scenarios with both high numbers of assemblies and high numbers of GC heaps, Server GC can encounter serious lock contention during generation 2 GCs.A config switch has been introduced as a workaround.It can either be enabled from a .config file: <configuration>  <runtime>    <GCStaticsNoLock enabled="true"/>  </runtime> </configuration> Or by setting environment variable COMPLUS_GCStaticsNoLockto a non-zero value. If the config switch is not enabled, behavior is unchanged compared to previous versions. |
|
Winforms |
- Addresses an issue where some Windows Forms applications that use ToolStrip controls with ToolStripControlHost, and run under UIA Accessibility Tools, could make Accessibility Tools unresponsive. - Addresses a regression in the ComboBox item accessible object where Accessibility Tools was not able to distinguish between identical items in the ComboBox and was becoming unresponsive. |
1 Common Language Runtime (CLR)
Known issues in this update
Microsoft is not currently aware of any issues in this update.
Additional information about this update
The following articles contain additional information about this update as it relates to individual product versions.
-
5004872 Description of the Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5004872)
How to obtain and install the update
Before installing this update
Prerequisite:
To apply this update, you must have .NET Framework 4.8 installed.
Install this update
|
Release Channel |
Available |
Next Step |
|
Windows Update and Microsoft Update |
Yes |
None. This update will be downloaded and installed automatically from Windows Update. |
|
Microsoft Update Catalog |
Yes |
To get the standalone package for this update, go to the Microsoft Update Catalog website. |
|
Windows Server Update Services (WSUS) |
Yes |
This update will automatically sync with WSUS if you configure Products and Classifications as follows: Product:Windows Server 2012 Classification: Updates |
Update removal information
To remove this update, use the Programs and Features item in Control Panel.
Update restart information
This update does not require a system restart after you apply it unless files that are being updated are locked or are being used.
Update replacement information
This update replaces previously released updates 5004230.
File Information
|
File name |
File version |
File size |
Date |
Time |
Platform |
SP requirement |
Service branch |
|
Presentationframework-systemdata.dll |
4.8.4395.0 |
17,800 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Presentationframework.dll |
4.8.4395.0 |
6,283,640 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Reachframework.dll |
4.8.4110.0 |
677,656 |
04-Dec-2019 |
02:55 |
x86 |
None |
Not applicable |
|
Smdiagnostics.dll |
4.8.4261.0 |
66,328 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
Smsvchost.exe |
4.8.4121.0 |
139,056 |
07-Dec-2019 |
06:03 |
x86 |
None |
Not applicable |
|
System.activities.presentation.dll |
4.8.4150.0 |
2,127,128 |
09-Jan-2020 |
19:46 |
x86 |
None |
Not applicable |
|
System.activities.dll |
4.8.4261.0 |
1,526,528 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.configuration.dll |
4.8.4190.0 |
421,536 |
05-Jun-2020 |
05:04 |
x86 |
None |
Not applicable |
|
System.core.dll |
4.8.4395.0 |
1,549,080 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
System.deployment.dll |
4.8.4290.0 |
1,593,624 |
30-Sep-2020 |
01:40 |
x86 |
None |
Not applicable |
|
System.drawing.design.dll |
4.8.4210.0 |
125,192 |
30-Jun-2020 |
01:55 |
x86 |
None |
Not applicable |
|
System.drawing.dll |
4.8.4395.0 |
595,728 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
System.identitymodel.services.dll |
4.8.4261.0 |
191,352 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.identitymodel.dll |
4.8.4261.0 |
1,086,744 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.net.sockets.dll |
4.8.4121.0 |
30,360 |
07-Dec-2019 |
06:03 |
x86 |
None |
Not applicable |
|
System.runtime.serialization.dll |
4.8.4261.0 |
1,047,312 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.security.dll |
4.8.4261.0 |
320,280 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.servicemodel.activities.dll |
4.8.4261.0 |
555,384 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.servicemodel.channels.dll |
4.8.4261.0 |
150,904 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.servicemodel.discovery.dll |
4.8.4261.0 |
301,432 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.servicemodel.internals.dll |
4.8.4261.0 |
246,528 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.servicemodel.washosting.dll |
4.8.4261.0 |
33,144 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.servicemodel.web.dll |
4.8.4261.0 |
321,792 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.servicemodel.dll |
4.8.4261.0 |
6,383,896 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
System.speech.dll |
4.8.4210.0 |
676,736 |
30-Jun-2020 |
01:55 |
x86 |
SPE |
MSIL_SYSTEM.SP |
|
System.web.applicationservices.dll |
4.8.4330.0 |
63,768 |
05-Jan-2021 |
01:30 |
x86 |
None |
Not applicable |
|
System.web.extensions.dll |
4.8.4330.0 |
1,842,448 |
05-Jan-2021 |
01:30 |
x86 |
None |
Not applicable |
|
System.windows.controls.ribbon.dll |
4.8.4395.0 |
743,824 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
System.windows.forms.datavisualization.dll |
4.8.4210.0 |
1,712,512 |
30-Jun-2020 |
01:55 |
x86 |
None |
Not applicable |
|
System.windows.forms.dll |
4.8.4410.0 |
5,918,488 |
26-Jun-2021 |
01:40 |
x86 |
None |
Not applicable |
|
System.workflow.activities.dll |
4.8.4110.0 |
1,051,112 |
04-Dec-2019 |
02:55 |
x86 |
None |
Not applicable |
|
System.workflow.componentmodel.dll |
4.8.4110.0 |
1,557,272 |
04-Dec-2019 |
02:55 |
x86 |
None |
Not applicable |
|
System.workflow.runtime.dll |
4.8.4110.0 |
503,064 |
04-Dec-2019 |
02:55 |
x86 |
None |
Not applicable |
|
System.xaml.dll |
4.8.4395.0 |
632,104 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
System.dll |
4.8.4380.0 |
3,554,584 |
30-Apr-2021 |
09:50 |
x86 |
None |
Not applicable |
|
Uiautomationclientsideproviders.dll |
4.8.4395.0 |
354,176 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Uiautomationclient.dll |
4.8.4395.0 |
170,872 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Uiautomationprovider.dll |
4.8.4395.0 |
41,848 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Uiautomationtypes.dll |
4.8.4395.0 |
215,928 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Windowsbase.dll |
4.8.4395.0 |
1,298,808 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Windowsformsintegration.dll |
4.8.4150.0 |
105,240 |
09-Jan-2020 |
19:46 |
x86 |
None |
Not applicable |
|
Mscorlib.dll |
4.8.4410.0 |
5,670,776 |
26-Jun-2021 |
01:40 |
x86 |
None |
Not applicable |
|
Normidna.nlp |
Not applicable |
59,342 |
25-Jun-2019 |
22:46 |
Not applicable |
None |
Not applicable |
|
Normnfc.nlp |
Not applicable |
47,076 |
25-Jun-2019 |
22:46 |
Not applicable |
None |
Not applicable |
|
Normnfd.nlp |
Not applicable |
40,566 |
25-Jun-2019 |
22:46 |
Not applicable |
None |
Not applicable |
|
Normnfkc.nlp |
Not applicable |
67,808 |
25-Jun-2019 |
22:46 |
Not applicable |
None |
Not applicable |
|
Normnfkd.nlp |
Not applicable |
61,718 |
25-Jun-2019 |
22:46 |
Not applicable |
None |
Not applicable |
|
Aspnet_perf.dll |
4.8.4330.0 |
36,232 |
05-Jan-2021 |
01:30 |
x86 |
SPN |
X86_NETFX4-ASP |
|
Aspnet_state_perf.h |
Not applicable |
318 |
04-Jan-2021 |
23:56 |
Not applicable |
SPN |
X86_NETFX4-ASP |
|
Aspnet_state_perf.ini |
Not applicable |
42,996 |
05-Jan-2021 |
01:31 |
Not applicable |
SPN |
X86_NETFX4-ASP |
|
Aspnet_wp.exe |
4.8.4330.0 |
39,824 |
05-Jan-2021 |
01:30 |
x86 |
SPN |
X86_NETFX4-ASP |
|
Clrjit.dll |
4.8.4410.0 |
554,888 |
26-Jun-2021 |
01:40 |
x86 |
None |
Not applicable |
|
Clr.dll |
4.8.4410.0 |
8,040,328 |
26-Jun-2021 |
01:40 |
x86 |
None |
Not applicable |
|
Dfdll.dll |
4.8.4290.0 |
178,040 |
30-Sep-2020 |
01:40 |
x86 |
None |
Not applicable |
|
Globalmonospace.compositefont |
Not applicable |
26,040 |
30-Jan-2021 |
02:50 |
Not applicable |
SPA |
X86_NETFX4-GLOBALMONOSP |
|
Globalsansserif.compositefont |
Not applicable |
26,489 |
30-Jan-2021 |
02:50 |
Not applicable |
None |
Not applicable |
|
Globalserif.compositefont |
Not applicable |
29,779 |
30-Jan-2021 |
02:50 |
Not applicable |
None |
Not applicable |
|
Globaluserinterface.compositefont |
Not applicable |
264,986 |
30-Jan-2021 |
02:50 |
Not applicable |
None |
Not applicable |
|
Mscordacwks.dll |
4.8.4410.0 |
1,307,512 |
26-Jun-2021 |
01:40 |
x86 |
None |
Not applicable |
|
Mscordbi.dll |
4.8.4410.0 |
1,188,728 |
26-Jun-2021 |
01:40 |
x86 |
None |
Not applicable |
|
Mscoreei.dll |
4.8.4180.0 |
581,920 |
26-Mar-2020 |
23:11 |
x86 |
None |
Not applicable |
|
Mscorsvc.dll |
4.8.4330.0 |
454,024 |
05-Jan-2021 |
01:30 |
x86 |
None |
Not applicable |
|
Mscorsvw.exe |
4.8.4330.0 |
125,872 |
05-Jan-2021 |
01:30 |
x86 |
None |
Not applicable |
|
Ngentask.exe |
4.8.4330.0 |
79,824 |
05-Jan-2021 |
01:30 |
x86 |
None |
Not applicable |
|
Ngen.exe |
4.8.4330.0 |
144,344 |
05-Jan-2021 |
01:30 |
x86 |
None |
Not applicable |
|
Penimc.dll |
14.8.4395.0 |
11,656 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Penimc2_v0400.dll |
4.8.4395.0 |
99,704 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Penimc_v0400.dll |
4.8.4395.0 |
18,296 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Peverify.dll |
4.8.4410.0 |
182,648 |
26-Jun-2021 |
01:40 |
x86 |
None |
Not applicable |
|
Presentationhost_v0400.dll.mui |
4.8.4395.0 |
77,704 |
26-May-2021 |
00:23 |
Not applicable |
None |
Not applicable |
|
Presentationhost_v0400.dll |
4.8.4395.0 |
233,848 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Presentationnative_v0400.dll |
4.8.4395.0 |
923,000 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Servicemodel.mof |
Not applicable |
88,383 |
08-Nov-2019 |
23:28 |
Not applicable |
None |
Not applicable |
|
Servicemodel.mof.uninstall |
Not applicable |
896 |
08-Nov-2019 |
23:28 |
Not applicable |
None |
Not applicable |
|
Servicemonikersupport.dll |
4.8.4261.0 |
24,456 |
02-Sep-2020 |
21:05 |
x86 |
None |
Not applicable |
|
_smsvchostperfcounters.h |
Not applicable |
702 |
06-Dec-2019 |
22:20 |
Not applicable |
None |
Not applicable |
|
_smsvchostperfcounters.ini |
Not applicable |
133,894 |
07-Dec-2019 |
06:04 |
Not applicable |
None |
Not applicable |
|
_smsvchostperfcounters_d.ini |
Not applicable |
39 |
08-Nov-2019 |
03:11 |
Not applicable |
None |
Not applicable |
|
Smsvchost.exe.config |
Not applicable |
2,262 |
25-Jul-2019 |
21:42 |
Not applicable |
None |
Not applicable |
|
Sos.dll |
4.8.4410.0 |
767,352 |
26-Jun-2021 |
01:40 |
x86 |
None |
Not applicable |
|
System.core.dll |
4.8.4395.0 |
1,549,080 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
System.web.extensions.dll |
4.8.4330.0 |
1,842,448 |
05-Jan-2021 |
01:30 |
x86 |
None |
Not applicable |
|
System.windows.forms.datavisualization.dll |
4.8.4210.0 |
1,712,512 |
30-Jun-2020 |
01:55 |
x86 |
None |
Not applicable |
|
Webengine4.dll |
4.8.4330.0 |
564,616 |
05-Jan-2021 |
01:30 |
x86 |
None |
Not applicable |
|
Webengine.dll |
4.8.4330.0 |
19,328 |
05-Jan-2021 |
01:30 |
x86 |
None |
Not applicable |
|
Workflowservicehostperformancecounters.dll |
4.8.4110.0 |
89,368 |
04-Dec-2019 |
02:55 |
x86 |
None |
Not applicable |
|
Wpfgfx_v0400.dll |
4.8.4395.0 |
1,618,816 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
Globalmonospace.compositefont |
Not applicable |
26,040 |
30-Jan-2021 |
02:50 |
Not applicable |
None |
Not applicable |
|
Globalsansserif.compositefont |
Not applicable |
26,489 |
30-Jan-2021 |
02:50 |
Not applicable |
None |
Not applicable |
|
Globalserif.compositefont |
Not applicable |
29,779 |
30-Jan-2021 |
02:50 |
Not applicable |
None |
Not applicable |
|
Globaluserinterface.compositefont |
Not applicable |
264,986 |
30-Jan-2021 |
02:50 |
Not applicable |
None |
Not applicable |
|
Presentationcore.dll |
4.8.4395.0 |
3,674,496 |
26-May-2021 |
00:23 |
x86 |
None |
Not applicable |
|
System.data.dll |
4.8.4290.0 |
3,476,360 |
30-Sep-2020 |
01:40 |
x86 |
None |
Not applicable |
|
System.printing.dll |
4.8.4110.0 |
399,640 |
04-Dec-2019 |
02:55 |
x86 |
None |
Not applicable |
|
System.web.dll |
4.8.4330.0 |
5,410,184 |
05-Jan-2021 |
01:30 |
x86 |
None |
Not applicable |
Information about protection and security
-
Protect yourself online: Windows Security support
-
Learn how we guard against cyber threats: Microsoft Security
