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Recorded 6 Nov 2026 at 16:31 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

KB5061977

Windows 11, version 24H2: KB5061977 · 2025-05 OOB · OS build 26100.4066

What it said

KB
KB5061977
Windows versions and builds
Windows 11, version 24H2: 26100.4066 (2025-05 OOB); Windows Server 2025: 26100.4066 (2025-05 OOB)
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 affecting this update
Unknown: known-issue evidence is incomplete or retained
Known issues resolved
Unknown: known-issue evidence is incomplete or retained
Included security update
KB5058411
CVEs listed directly for this KB
Unknown: security evidence or the required release is incomplete
Missing security release
May 2025
Published
27 May 2025 00:00 UTC
Known issues caused
None in the collected release health data

Source evidence when recorded

Windows 11 releases
IncompleteRead 6 Nov 2026 at 15:16 UTC
Windows Server releases
IncompleteRead 6 Nov 2026 at 15:16 UTC
Microsoft security releases
IncompleteRead 6 Nov 2026 at 15:16 UTC
Windows known issues
IncompleteRead 6 Nov 2026 at 16:26 UTC

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

What changed

  1. 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
  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
  4. Known issues: None in the collected release health data
  5. Included security update: None identified in the collected release tables → KB5058411 · Applies to: Windows Server 2025 → Windows 11, version 24H2, Windows Server 2025
  6. Included security update: KB5058411 → None identified in the collected release tables
  7. 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
  8. 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 (45)

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

  1. 6 Nov 2026 · 16:31:02 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  2. 6 Nov 2026 · 16:31:02 UTC Known issues affecting this updateNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  3. 6 Nov 2026 · 16:31:02 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  4. 6 Nov 2026 · 16:31:02 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  5. 6 Nov 2026 · 16:31:02 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  6. 6 Nov 2026 · 16:31:02 UTC Source coverage: windows-11-releasesCurrent → Incomplete
  7. 5 Nov 2026 · 23:42:03 UTC Known issues resolvedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  8. 5 Nov 2026 · 23:42:03 UTC Known issues affecting this updateUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  9. 5 Nov 2026 · 23:42:03 UTC Source coverage: windows-known-issuesIncomplete → Current
  10. 5 Nov 2026 · 23:42:03 UTC Source coverage: windows-server-releasesIncomplete → Current
  11. 5 Nov 2026 · 23:42:03 UTC Source coverage: windows-11-releasesIncomplete → Current
  12. 5 Nov 2026 · 22:41:52 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  13. 5 Nov 2026 · 22:41:52 UTC Known issues affecting this updateNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  14. 5 Nov 2026 · 22:41:52 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  15. 5 Nov 2026 · 22:41:52 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  16. 5 Nov 2026 · 22:41:52 UTC Source coverage: windows-11-releasesCurrent → Incomplete
  17. 2 Nov 2026 · 17:30:39 UTC Source coverage: msrc-cvrfIncomplete → Current
  18. 2 Nov 2026 · 16:27:39 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  19. 29 Oct 2026 · 20:19:26 UTC Known issues affecting this updateNone in the collected release health data
  20. 28 Oct 2026 · 13:54:09 UTC Source coverage: windows-server-releasesIncomplete → Current
  21. 28 Oct 2026 · 08:37:56 UTC Missing security releaseNone identified in collected security coverage → May 2025
  22. 28 Oct 2026 · 08:37:56 UTC CVEs listed directly for this KBNone in the collected security releases → Unknown: security evidence or the required release is incomplete
  23. 28 Oct 2026 · 08:37:56 UTC Included security updateNone identified in the collected release tables → KB5058411
  24. 28 Oct 2026 · 08:37:56 UTC CVEs fixedNone in the collected security releases → Unknown: security evidence or the required release is incomplete
  25. 28 Oct 2026 · 08:37:56 UTC Applies toWindows Server 2025 → Windows 11, version 24H2, Windows Server 2025
  26. 28 Oct 2026 · 08:37:56 UTC Windows versions and buildsWindows Server 2025: 26100.4066 (2025-05 OOB) → Windows 11, version 24H2: 26100.4066 (2025-05 OOB); Windows Server 2025: 26100.4066 (2025-05 OOB)
  27. 28 Oct 2026 · 08:37:56 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  28. 28 Oct 2026 · 08:37:56 UTC Source coverage: windows-11-releasesCurrent
  29. 28 Oct 2026 · 08:37:56 UTC Link: Support articlehttps://support.microsoft.com/topic/may-27-2025-kb5061977-os-build-26100-4066-out-of-band-80725b43-c0a1-48a4-9b82-058efffb6228 → https://support.microsoft.com/help/5061977
  30. 28 Oct 2026 · 08:37:56 UTC SummaryWindows Server 2025: KB5061977 · 2025-05 OOB · OS build 26100.4066 → Windows 11, version 24H2: KB5061977 · 2025-05 OOB · OS build 26100.4066
  31. 26 Oct 2026 · 06:24:14 UTC Missing security releaseMay 2025 → None identified in collected security coverage
  32. 26 Oct 2026 · 06:24:14 UTC CVEs listed directly for this KBUnknown: security evidence or the required release is incomplete → None in the collected security releases
  33. 26 Oct 2026 · 06:24:14 UTC Included security updateKB5058411 → None identified in the collected release tables
  34. 26 Oct 2026 · 06:24:14 UTC CVEs fixedUnknown: security evidence or the required release is incomplete → None in the collected security releases
  35. 23 Oct 2026 · 09:33:49 UTC Known issues resolvedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  36. 23 Oct 2026 · 09:33:49 UTC Known issues causedUnknown: known-issue evidence is incomplete or retained → None in the collected release health data
  37. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-known-issuesIncomplete → Current
  38. 23 Oct 2026 · 09:33:49 UTC Source coverage: msrc-cvrfIncomplete → Current
  39. 23 Oct 2026 · 09:33:49 UTC Source coverage: windows-server-releasesIncomplete → Current
  40. 23 Oct 2026 · 08:31:50 UTC Known issues resolvedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  41. 23 Oct 2026 · 08:31:50 UTC Known issues causedNone in the collected release health data → Unknown: known-issue evidence is incomplete or retained
  42. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-known-issuesCurrent → Incomplete
  43. 23 Oct 2026 · 08:31:50 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  44. 23 Oct 2026 · 08:31:50 UTC Source coverage: windows-server-releasesCurrent → Incomplete
  45. 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 18:25 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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