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.
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.
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)
The Cumulative Update Preview is available via Windows Update, Windows Server Update Services, and 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.
Microsoft server operating systems version 21H2
Windows 10, version 21H2
Windows 10, version 21H1
Windows 10, version 20H2 and Windows Server, version 20H2
Windows 10 1809 (October 2018 Update) and Windows Server 2019
Previous Monthly Rollups
The last few .NET Framework Monthly updates are listed below for your convenience:
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