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.NET Framework 3.5 / 4.8 .NET Framework 3.5 / 4.8 Optional preview
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KB5055063

KB5055063: Cumulative update for .NET Framework, versions 3.5 and 4.8, on Windows 10 22H2, March 2025. Reliability updates for .NET 3.5, 4.8 and 4.8.1

In short

Includes cumulative quality and reliability improvements for .NET Framework 3.5, 4.8 and 4.8.1. It adds no new security improvements and has no known issues.

Does it affect you? Applies to: Devices running Windows 10, version 22H2, with .NET Framework 3.5, 4.8 or 4.8.1.

Restart
Required

What changes

Improvement 1 change

.NET Framework

For: Windows 10, version 22H2 devices

  • Includes quality and reliability improvements for .NET Framework 3.5, 4.8 and 4.8.1.1
    The page refers to linked articles for the list of improvements but does not describe individual changes.

Technical details

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

Data sheet

Released
2025-03-25
Classification
Updates
Type
Cumulative update
Restart
Required
Replaces
KB5050593
Replaced by
KB5057056
VersionFile versionChannel
3.5 General availability
4.8 General availability

Security

No vulnerabilities are listed for this update.

Downloads (Microsoft Update Catalog)

Sources

Updated
Cited passages from Microsoft's official notes (1)
  1. 1. For a list of improvements that were released with this update, please see the article links in the Additional Information section of this article. support.microsoft.com
Checked automatically: 8 of 8 checks passed, 1 quoted passage · 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 5/5, clarity 5/5, 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