Win Update KB5028851 Cumulative Update .NET Framework 3.5 and 4.8.1 (22H2)

KB5028017 Cumulative Update Preview .NET Framework 3.5 and 4.8.1 (22H2)

July 26, 2023 - KB5028017 Cumulative Update Preview for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 The July 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...

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July 11, 2023 - KB5028851 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2​

The July 11, 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

CLR1

This update addresses a change that affects how you use the X509Certificate, X509Certificate2, or X509Certificate2Collection classes. When you use them to import a PKCS#12 blob that contains a private key, the calling application might get an exception. The exception message is, “System.Security.Cryptography.CryptographicException: PKCS12 (PFX) without a supplied password has exceeded maximum allowed iterations. See KB5025823 Change in how .NET applications import X.509 certificates - Microsoft Support for more information.” To learn more, seeKB5028608.

1Common Language Runtime (CLR)

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)	Yes	This update will automatically sync with WSUS if you configure as follows: Product: Windows 11, version 22H2 Classification: Updates

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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July 11, 2023-KB5028851 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 - Microsoft Support

support.microsoft.com

.NET Framework July 2023 Security and Quality Rollup Updates - .NET Blog

July 2023 Security and Quality Rollup Updates for .NET Framework

devblogs.microsoft.com