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Recorded 28 Oct 2026 at 08:37 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.

Windows updateMicrosoft release information, MSRC and Windows release health

KB5065426

Windows 11, version 24H2: KB5065426 · 2025-09 B · OS build 26100.6584

What it said

KB
KB5065426
Windows versions and builds
Windows 11, version 24H2: 26100.6584 (2025-09 B); Windows Server 2025: 26100.6584 (2025-09 B)
Applies to
Windows 11, version 24H2, Windows Server 2025
Restart required
Not stated in collected security fixes
CVEs fixed
Unknown: security evidence or the required release is incomplete
Known issues caused
None in the collected release health data
Known issues resolved
None in the collected release health data
Included security update
None identified in the collected release tables
CVEs listed directly for this KB
Unknown: security evidence or the required release is incomplete
Missing security release
September 2025
Published
9 Sep 2025 00:00 UTC

Source evidence when recorded

Windows 11 releases
Complete at observationRead 28 Oct 2026 at 08:36 UTC
Windows Server releases
IncompleteRead 28 Oct 2026 at 08:36 UTC
Microsoft security releases
Complete at observationRead 28 Oct 2026 at 08:36 UTC
Windows known issues
Complete at observationRead 28 Oct 2026 at 08:36 UTC

Coverage describes the sources at this observation. A complete read then does not establish their current position.

What changed

  1. Applies to: Windows Server 2025 → Windows 11, version 24H2, Windows Server 2025
  2. Issues resolved: Unknown: known-issue evidence is incomplete or retained → None in the collected release health data · Known issues: Unknown: known-issue evidence is incomplete or retained → None in the collected release health data
  3. Issues resolved: None in the collected release health data → Unknown: known-issue evidence is incomplete or retained · Known issues: None in the collected release health data → Unknown: known-issue evidence is incomplete or retained
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (17)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 28 Oct 2026 · 08:37:56 UTC Applies toWindows Server 2025 → Windows 11, version 24H2, Windows Server 2025
  2. 28 Oct 2026 · 08:37:56 UTC Windows versions and buildsWindows Server 2025: 26100.6584 (2025-09 B) → Windows 11, version 24H2: 26100.6584 (2025-09 B); Windows Server 2025: 26100.6584 (2025-09 B)
  3. 28 Oct 2026 · 08:37:56 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  4. 28 Oct 2026 · 08:37:56 UTC Source coverage: windows-11-releasesCurrent
  5. 28 Oct 2026 · 08:37:56 UTC Link: Support articlehttps://support.microsoft.com/topic/september-9-2025-kb5065426-update-for-windows-server-2025-os-build-26100-6584-6a59dc6a-1ff2-48f4-b375-81e93deee5dd → https://support.microsoft.com/help/5065426
  6. 28 Oct 2026 · 08:37:56 UTC SummaryWindows Server 2025: KB5065426 · 2025-09 B · OS build 26100.6584 → Windows 11, version 24H2: KB5065426 · 2025-09 B · OS build 26100.6584
  7. 23 Oct 2026 · 09:33:49 UTC Known issues resolvedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  8. 23 Oct 2026 · 09:33:49 UTC Known issues causedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  9. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-known-issuesIncomplete → Current
  10. 23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
  11. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-server-releasesIncomplete → Current
  12. 23 Oct 2026 · 08:31:50 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  13. 23 Oct 2026 · 08:31:50 UTC Known issues causedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  14. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  15. 23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  16. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  17. 14 Oct 2026 · 11:22:42 UTC Source coverage: msrc-cvrfIncomplete → Current
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 11 Nov 22:09 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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