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KB5041167

KB5041167: Cumulative update for .NET Framework, versions 3.5 and 4.8, on Windows 10 22H2, July 2024. Fixes .NET list rendering and ASP.NET project slowdowns

In short

Addresses .NET issues involving automated list rendering, data safety checks, ASP.NET page metadata, and slowdowns in large projects using Visual Studio.

Does it affect you? Applies to: Devices running Windows 10, version 22H2, with .NET Framework 3.5 or 4.8 installed.

File version
2.0.50727.9177 · 4.8.4744.0
Restart
Required
Review notes Additional details from the official release notes (3) Read notes
  • In short The update addresses an issue involving the serialization binder and BinaryFormatter mutations. Microsoft lists it as a quality and reliability improvement and says there are no new security improvements in this release.
  • In detail The update addresses an issue involving the serialization binder and BinaryFormatter mutations. Microsoft lists it as a quality and reliability improvement and says there are no new security improvements in this release.
  • What changes The update addresses an issue involving the serialization binder and BinaryFormatter mutations. Microsoft lists it as a quality and reliability improvement and says there are no new security improvements in this release.

The official sources are linked at the end of the page.

What changes

Fixes 5 changes

.NET Libraries

  • A component used to compress data is updated to the latest zlib version.1
    Addresses an issue to update the zlib file to the latest version.

.NET Fundamentals

Verified in package 4 items
  • Sub-items in automated interface lists can now render properly.2
    Addresses an issue to render UI automation ListView sub items.
  • The update addresses a case where modified data could get around a .NET safety check.3
    Addresses an issue with bypass serialization binder with binary formatter mutations.
  • ASP.NET WebForms SmartNavigation pages no longer include metadata for certain content-rating labels.4
    Removes meta tag information referencing "Recreational Software Advisory Council" and the content-rating schema from the ASP.Net WebForms SmartNavigation feature.
  • The update addresses conflicts that could slow down work on large ASP.NET projects in Visual Studio.5
    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.

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2024-07-23
Classification
Updates
Type
Cumulative update
Restart
Required
VersionFile versionChannel
3.5 2.0.50727.9177 General availability
4.8 4.8.4744.0 General availability

Security

No vulnerabilities are listed for this update.

Updated components

103 files changed since the previous update for the same versions.

Top changed componentsFiles
WPF33
.NET runtime (CLR)18
ASP.NET15

Verified in package: changed files confirm .NET Fundamentals.

Sources

Updated
Cited passages from Microsoft's official notes (5)
  1. 1. Addresses an issue to update zlib file to latest version. support.microsoft.com
  2. 2. Addresses an issue to render UI automation ListView sub items. support.microsoft.com
  3. 3. Addresses an issue with bypass serialization binder with binary formatter mutations. support.microsoft.com
  4. 4. 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
  5. 5. 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
Checked automatically: 8 of 8 checks passed, 5 quoted passages · compared with Microsoft's page on Nov 8, 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