Release Date:January 19, 2023
Version: .NET Framework 3.5 and 4.8.1
Note:Â Revised on Jun 20, 2023 to add known issue.
The January 19, 2023 update for Windows 10, version 20H2, Windows 10 Version 21H1,Windows 10 Version 21H2 and Windows 10 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
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WPF1 |
- Addresses an issue in propagation of ElementHost controls Visible property to underlying HwndWrapper. - Addresses an issue that restores System.Windows.Controls.VirtualizingStackPanel scrolling behavior for CollectionChange event. - Addresses an issue to ignore Win32LastError when calling GetWindowText and GetWindowTextLength methods. - Addresses an issue to allow override the control to always have IsOpen property set to false for third party library created class using the ToolTip class as the base. |
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Networking |
- Addresses an issue in the Socket.EndReceiveFrom method that may lead to AccessViolationException in rare scenarios. |
1Windows Presentation Foundation (WPF)
Additional information about this update
The following articles contain additional information about this update as it relates to individual product versions.
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5022474 Description of the Cumulative Update Preview for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10, version 20H2 (KB5022474)
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5022478 Description of the Cumulative Update Preview for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 (KB5022478)
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5022476 Description of the Cumulative Update Preview for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 (KB5022476)
Known issues in this update
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Symptom |
After installing this update, WPF apps may have a change in behavior. For more information about this issue, see KB5022083 |
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Workaround |
To mitigate this issue, see KB5022083. |
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Resolution |
This issue has been resolved in the June 13, 2023 Security and Quality Rollup and Cumulative Update. If you used any workaround or mitigations for this issue, they are no longer needed, and we recommend you remove them. To remove workaround review the workaround or alternative workaround which was applied for instructions. The workaround should be removed prior to installing the June update. |
How to get this update
Install this update
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Release Channel |
Available |
Next Step |
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Windows Update and Microsoft Update |
Yes |
None. This update will be downloaded and installed automatically from Windows Update. |
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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. |
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Microsoft Update Catalog |
Yes |
To get the standalone package for this update, go to the Microsoft Update Catalog website. |
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Windows Server Update Services (WSUS) |
No |
You can import this update into WSUS manually via 5022476 and 5022478 and 5022474. 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.
How to obtain help and support for this update
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Help for installing updates: Windows Update FAQ
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Protect yourself online and at home: Windows Security support
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Local support according to your country: International Support
