This week, we released the February 2022 Security and Quality Rollup for .NET Framework.
Security
The February Security and Quality Rollup Update does not contain any new security improvements. See January 2022 Security and Quality Rollup for the latest security updates.
Quality and Reliability
This release contains the following quality and reliability improvements.
CLR1
Addresses rare crashes and hangs that can appear in cases where a GC occurs while another thread is in the middle of certain special paths used to invoke shared-generic code from non-shared-generic contexts.
WPF2
Addresses a hang when scrolling a list control where both these conditions are
UseLayoutRounding is enabled, and
The item margin is not a multiple of the rounding quantum. (The quantum is a function of the DPI scaling in effect.)
Addresses an exception “Height must be non-negative” that can occur when adding items or groups to the collection displayed by an ItemsControl.
Addresses an issue where a shared ContextMenu stops displaying after it fails to display once because its owner was removed from the visual tree.
1 Common Language Runtime (CLR)
2 Windows Presentation Foundation (WPF)
Getting the Update
The Security and Quality Rollup is available via Windows Update, Windows Server Update Services, and Microsoft Update Catalog.
Microsoft Update Catalog
You can get the update via the Microsoft Update Catalog. For Windows 10, NET Framework 4.8 updates are available via Windows Update, Windows Server Update Services, Microsoft Update Catalog. Updates for other versions of .NET Framework are part of the Windows 10 Monthly Cumulative Update.
**Note**: Customers that rely on Windows Update and Windows Server Update Services will automatically receive the .NET Framework version-specific updates. Advanced system administrators can also take use of the below direct Microsoft Update Catalog download links to .NET Framework-specific updates. Before applying these updates, please ensure that you carefully review the .NET Framework version applicability, to ensure that you only install updates on systems where they apply.
The following table is for Windows 10 and Windows Server 2016+ versions.
Product Version
Cumulative Update
Windows 11
.NET Framework 3.5, 4.8
Catalog
5009469
Microsoft server operating systems version 21H2
.NET Framework 3.5, 4.8
Catalog
5009470
Windows 10 21H2
.NET Framework 3.5, 4.8
Catalog
5009467
Windows 10 21H1
.NET Framework 3.5, 4.8
Catalog
5009467
Windows 10, version 20H2 and Windows Server, version 20H2
.NET Framework 3.5, 4.8
Catalog
5009467
Windows 10 1909
.NET Framework 3.5, 4.8
Catalog
5010483
Windows 10 1809 (October 2018 Update) and Windows Server 2019
.NET Framework 3.5, 4.7.2
Catalog
5009472
.NET Framework 3.5, 4.8
Catalog
5009468
Windows 10 1607 (Anniversary Update) and Windows Server 2016
.NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2
Catalog
5010359
.NET Framework 4.8
Catalog
5010460
The following table is for earlier Windows and Windows Server versions.
Product Version
Security and Quality Rollup
Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2
.NET Framework 3.5
Catalog
5008868
.NET Framework 4.5.2
Catalog
5008870
.NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2
Catalog
5010465
.NET Framework 4.8
Catalog
5010462
Windows Server 2012
.NET Framework 3.5
Catalog
5008865
.NET Framework 4.5.2
Catalog
5008869
.NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2
Catalog
5010464
.NET Framework 4.8
Catalog
5010461
Windows 7 SP1 and Windows Server 2008 R2 SP1
.NET Framework 3.5.1
Catalog
5008867
.NET Framework 4.5.2
Catalog
5008860
.NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2
Catalog
5010458
.NET Framework 4.8
Catalog
5010457
Windows Server 2008
.NET Framework 2.0, 3.0
Catalog
5008866
.NET Framework 4.5.2
Catalog
5008860
.NET Framework 4.6
Catalog
5010458
Previous Monthly Rollups
The last few .NET Framework Monthly updates are listed below for your convenience:
.NET Framework January 2022 Cumulative Update Preview
.NET Framework January 2022 Security and Quality Rollup Updates
.NET Framework November 2021 Cumulative Update
.NET Framework October 2021 Security and Quality Rollup
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