Win Update KB5022404 Cumulative Update .NET Framework 3.5 and 4.8.1 (22H2)

KB5023327 Out-of-band Cumulative Update .NET Framework 4.8.1 (22H2)

January 31, 2023 - KB5023327 Update for .NET Framework 4.8.1 for Windows 11, version 22H2 The January 31, 2023 update for Windows 11, version 22H2 includes improvements in .NET Framework 4.8.1. Before you install this update, see the Prerequisites and Restart requirement sections. Summary...

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January 26, 2023 - KB5022404 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2​

The January 26, 2023 update for Windows 11, version 22H2 includes cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequisites and Restart requirement sections.

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

WPF1

- Addresses an issue in propagation of ElementHost controls Visible property to underlying HwndWrapper. - Addresses an issue that restores VirtualizingScrollPanel scrolling behavior for CollectionChange event. - Addresses an issue to ignore Win32LastError when calling GetWindowText and GetWindowTextLength methods. - Addresses Null Reference Exception when ToolTip is visible property is overridden to be always be false.

Networking

- Addresses an issue in the Socket.EndReceiveFrom method that may lead to AccessViolationException in rare scenarios.

1Windows Presentation Foundation (WPF)

Known issues in this update​

Microsoft is not currently aware of any issues in this update.

How to get this update​

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.
Windows Update for Business	No	None. These changes will be included in the next security update to this channel. For more information about Windows Update for Business go to the Windows Update for Business website.
Microsoft Update Catalog	Yes	To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS)	No	You can import this update into WSUS manually. See the Microsoft Update Catalog for instructions.

File information

For a list of the files that are provided in this update, download the file information for cumulative update.

Prerequisites​

To apply this update, you must have .NET Framework 3.5 or 4.8.1 installed.

Restart requirement​

You must 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.

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January 26, 2023-KB5022404 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 - Microsoft Support

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