June 25, 2024-KB5039866 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2
Applies To
.NETRelease Date:June 25, 2024
Version: .NET Framework 3.5 and 4.8.1
The June 25, 2024 update for Windows 11, version 22H2 and Windows 11, version 23H2 includes security and 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
|
Winforms |
- Addresses an issue with the size of memory leaks associated with AccessibleObjects held in memory due to ref-counting. |
|
.NET Fundamentals |
- Addresses an issue with x509 certificate use under PPL in Azure AD. |
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 |
Go to Settings > Update & Security > Windows Update. In the Optional updates available area, you’ll find the link to download and install the update. |
|
Windows Update for Business |
Yes |
Go to Settings > Update & Security > Windows Update. In the Optional updates available area, you’ll find the link to download and install the update. |
|
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.
How to obtain help and support for this update
-
Help for installing updates: Windows Update FAQ
-
Protect yourself online and at home: Windows Security support
-
Local support according to your country: International Support
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