.NET Framework January 2022 Cumulative Update Preview

Today, we are releasing the January 2022 Cumulative Update Preview for .NET Framework.

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 Cumulative Update Preview 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, version 21H2

.NET Framework 3.5, 4.8
Catalog
5009467

Windows 10, version 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 1809 (October 2018 Update) and Windows Server 2019

5009823

.NET Framework 3.5, 4.7.2
Catalog
5009472

.NET Framework 3.5, 4.8
Catalog
5009468

 

Previous Monthly Rollups

The last few .NET Framework Monthly updates are listed below for your convenience:

.NET Framework January 2021 Cumulative Update
.NET Framework November 2021 Cumulative Update
.NET Framework October 2021 Security and Quality Rollup

The post .NET Framework January 2022 Cumulative Update Preview appeared first on .NET Blog.

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