The Update BureauKB5041964: Cumulative update for .NET Framework, versions 3.5 and 4.8.1, on Windows Server 2022, August 2024. Fixes ListView rendering and ASP.NET project slowdowns
In short
Addresses reliability issues in .NET Framework, including ListView rendering and slowdowns in some large ASP.NET projects. It includes previously released security improvements but no new ones.
Does it affect you? Applies to: Windows Server 2022 devices with .NET Framework 3.5 or 4.8.1 installed.
What changes
Fixes 4 changes
.NET Fundamentals
Verified in package
4 items
-
Automated tools can render the smaller entries inside a list view.1
Addresses an issue rendering UI automation ListView sub items.
-
The update addresses a case where modifying binary-formatted data could bypass a check before the data was read.2
Addresses an issue with bypassing the serialization binder with binary formatter mutations.
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ASP.NET Web Forms SmartNavigation no longer includes meta tag information about the Recreational Software Advisory Council or content-rating schema.3
Addresses an issue to remove meta tag information referencing "Recreational Software Advisory Council" and the content-rating schema from ASP.Net WebForms SmartNavigation feature.
-
Some large ASP.NET projects can avoid slowdowns caused by conflicts between Visual Studio design-time and debug/runtime compilation.4
Addresses an issue with .NET Framework interaction with Visual Studio to avoid conflicts between design-time and debug/runtime compilation of some .NET Framework ASP.NET projects.
Improvement 1 change
.NET Libraries
For: Applications using .NET
-
The update replaces a zlib file with the latest version.5
Addresses an issue by updating the zlib file to the latest version.
Technical details
Data sheet · Security · Downloads · Components Click to collapse or expand
Data sheet
- Released
- 2024-08-13
- Classification
- Updates
- Type
- Cumulative update
- Restart
- Required
- Replaces
- KB5037929
- Replaced by
- KB5044035
| Version | File version | Channel |
|---|---|---|
| 3.5 | 2.0.50727.9179 | General availability |
| 4.8.1 | 4.8.9266.0 | General availability |
Security
No vulnerabilities are listed for this update.
Downloads (Microsoft Update Catalog)
x64
Windows Server 2022
72.1 MB
Updated components
89 files changed since the previous update for the same versions.
| Top changed components | Files |
|---|---|
| WPF | 22 |
| .NET runtime (CLR) | 14 |
| ASP.NET | 10 |
Verified in package: changed files confirm .NET Fundamentals.
Sources
Updated
Cited passages from Microsoft's official notes (5)
-
1.
Addresses an issue to render UI automation ListView sub items.
support.microsoft.com -
2.
Addresses an issue with bypass serialization binder with binary formatter mutations.
support.microsoft.com -
3.
Addresses an issue to remove meta tag information referencing "Recreational Software Advisory Council" and the content-rating schema from ASP.Net WebForms SmartNavigation feature.
support.microsoft.com -
4.
Addresses an issue .NET Framework interaction with Visual Studio to avoid conflicts between design-time and debug/runtime compilation of some .NET Framework ASP.NET project that could result in slowed developer experience for large projects.
support.microsoft.com -
5.
Addresses an issue to update zlib file to latest version.
support.microsoft.com
Checked automatically: 8 of 8 checks passed, 5 quoted passages · compared with Microsoft's page on Oct 20, 2026
- Quotes found in the official pages: passed
- Numbers found in the sources: passed
- Vulnerabilities from the dossier only: passed
- Links to allowed domains only: passed
- Every official change covered: passed
- Readable plain text: passed
- Changes confirmed by the file list: passed
- Sources agree: passed
A second AI read the text against the sources: correctness 4/5, clarity 4/5, completeness 5/5. How we work
Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake