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.NET Framework 3.5 / 4.8.1 .NET Framework 3.5 / 4.8.1 Optional preview
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KB5041168

KB5041168: Cumulative update for .NET Framework, versions 3.5 and 4.8.1, on Windows 10 22H2, July 2024. ListView rendering, zlib, and ASP.NET issues addressed

In short

Addresses several .NET Framework reliability issues, including ListView rendering, serialization, and ASP.NET project compilation problems.

Does it affect you? Applies to: Devices running Windows 10 Version 22H2 with .NET Framework 3.5 or 4.8.1 installed.

File version
2.0.50727.9177 · 4.8.9261.0
Restart
Required

What changes

Fixes 5 changes

.NET Libraries

For: Devices with .NET Framework 3.5 or 4.8.1

  • The update addresses an issue with bringing the zlib file up to its latest version.1

.NET Fundamentals

Verified in package 4 items
  • The update addresses a problem that could prevent UI automation from rendering ListView subitems.2
    The issue involves rendering UI automation ListView subitems.
  • The update addresses an issue where binary formatter mutations could bypass the serialization binder.3
  • The update addresses meta tag information in the ASP.NET WebForms SmartNavigation feature.4
    The information references the Recreational Software Advisory Council and the content-rating schema.
  • The update addresses compilation conflicts that could slow development on large ASP.NET projects.5
    It addresses conflicts between design-time and debug/runtime compilation when .NET Framework interacts with Visual Studio.

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
4.8.1 4.8.9261.0 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. 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 5/5, clarity 3/5, 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