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Recorded 4 Nov 2026 at 13:26 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.

Microsoft 365 roadmapMicrosoft 365 roadmap

Microsoft Purview: Purview Information Protection | Classifier Simulation Mode (Health Monitoring)

Microsoft Purview introduces the Classifier Simulation Mode, the first phase of the broader Classifier Health Monitoring Platform.

What it said

Roadmap ID
523201
Status
In development
General availability target
Not stated
Preview target
Not stated
Products
Microsoft Purview
Clouds
Worldwide (Standard Multi-Tenant)
Release phases
General Availability
Platforms
Web
Added to the roadmap
5 Nov 2025 00:00 UTC
Last changed
5 Nov 2025 00:00 UTC

Source evidence when recorded

merill-message-center-archive
Complete at observationRead 4 Nov 2026 at 13:06 UTC

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

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 (52)

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

  1. 4 Nov 2026 · 13:26:53 UTC Last changed14 Jul 2026 22:41 UTC → 5 Nov 2025 00:00 UTC
  2. 4 Nov 2026 · 13:26:53 UTC Preview targetOctober CY2026 → Not stated
  3. 4 Nov 2026 · 13:26:53 UTC General availability targetNovember CY2026 → Not stated
  4. 4 Nov 2026 · 13:26:53 UTC Source coverage: microsoft-365-roadmapIncomplete → Not collected
  5. 4 Nov 2026 · 13:26:53 UTC Source coverage: merill-message-center-archiveCurrent
  6. 4 Nov 2026 · 13:26:53 UTC Link: Purview/roadmap?topic=Purview&period=all#items → No longer listed in this observation
  7. 4 Nov 2026 · 13:26:53 UTC Link: Microsoft roadmap entryhttps://www.microsoft.com/en-us/microsoft-365/roadmap?id=523201 → No longer listed in this observation
  8. 4 Nov 2026 · 13:26:53 UTC Link: Microsoft Purview/roadmap?topic=Microsoft%20Purview&period=all#items
  9. 4 Nov 2026 · 13:26:53 UTC SummaryMicrosoft Purview introduces the Classifier Simulation Mode, the first phase of the broader Classifier Health Monitoring Platform. This capability enables you to test, analyze, and optimize custom classifiers on production data before publishing them, hence offering a reliable means of verifying the effectiveness of classifiers before committing them to live environments. Custom classifiers are powerful tools but can sometimes include inefficient regex patterns or overly broad logic, leading to Noisy classifier due to high matches, False positives and High scanning latency Simulation Mode mitigates these risks by allowing you to validate classifier quality and performance before publishing, helping ensure healthy, performant, and more precise classification outcomes. → Microsoft Purview introduces the Classifier Simulation Mode, the first phase of the broader Classifier Health Monitoring Platform.
  10. 4 Nov 2026 · 13:10:08 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  11. 4 Nov 2026 · 11:04:04 UTC Last changed5 Nov 2025 00:00 UTC → 14 Jul 2026 22:41 UTC
  12. 4 Nov 2026 · 11:04:04 UTC Preview targetNot stated → October CY2026
  13. 4 Nov 2026 · 11:04:04 UTC General availability targetNot stated → November CY2026
  14. 4 Nov 2026 · 11:04:04 UTC Source coverage: merill-message-center-archiveCurrent → Not collected
  15. 4 Nov 2026 · 11:04:04 UTC Source coverage: microsoft-365-roadmapCurrent
  16. 4 Nov 2026 · 11:04:04 UTC Link: Microsoft Purview/roadmap?topic=Microsoft%20Purview&period=all#items → No longer listed in this observation
  17. 4 Nov 2026 · 11:04:04 UTC Link: Purview/roadmap?topic=Purview&period=all#items
  18. 4 Nov 2026 · 11:04:04 UTC Link: Microsoft roadmap entryhttps://www.microsoft.com/en-us/microsoft-365/roadmap?id=523201
  19. 4 Nov 2026 · 11:04:04 UTC SummaryMicrosoft Purview introduces the Classifier Simulation Mode, the first phase of the broader Classifier Health Monitoring Platform. → Microsoft Purview introduces the Classifier Simulation Mode, the first phase of the broader Classifier Health Monitoring Platform. This capability enables you to test, analyze, and optimize custom classifiers on production data before publishing them, hence offering a reliable means of verifying the effectiveness of classifiers before committing them to live environments. Custom classifiers are powerful tools but can sometimes include inefficient regex patterns or overly broad logic, leading to Noisy classifier due to high matches, False positives and High scanning latency Simulation Mode mitigates these risks by allowing you to validate classifier quality and performance before publishing, helping ensure healthy, performant, and more precise classification outcomes.
  20. 4 Nov 2026 · 10:01:18 UTC Last changed14 Jul 2026 22:41 UTC → 5 Nov 2025 00:00 UTC
  21. 4 Nov 2026 · 10:01:18 UTC Preview targetOctober CY2026 → Not stated
  22. 4 Nov 2026 · 10:01:18 UTC General availability targetNovember CY2026 → Not stated
  23. 4 Nov 2026 · 10:01:18 UTC Source coverage: microsoft-365-roadmapIncomplete → Not collected
  24. 4 Nov 2026 · 10:01:18 UTC Source coverage: merill-message-center-archiveCurrent
  25. 4 Nov 2026 · 10:01:18 UTC Link: Purview/roadmap?topic=Purview&period=all#items → No longer listed in this observation
  26. 4 Nov 2026 · 10:01:18 UTC Link: Microsoft roadmap entryhttps://www.microsoft.com/en-us/microsoft-365/roadmap?id=523201 → No longer listed in this observation
  27. 4 Nov 2026 · 10:01:18 UTC Link: Microsoft Purview/roadmap?topic=Microsoft%20Purview&period=all#items
  28. 4 Nov 2026 · 10:01:18 UTC SummaryMicrosoft Purview introduces the Classifier Simulation Mode, the first phase of the broader Classifier Health Monitoring Platform. This capability enables you to test, analyze, and optimize custom classifiers on production data before publishing them, hence offering a reliable means of verifying the effectiveness of classifiers before committing them to live environments. Custom classifiers are powerful tools but can sometimes include inefficient regex patterns or overly broad logic, leading to Noisy classifier due to high matches, False positives and High scanning latency Simulation Mode mitigates these risks by allowing you to validate classifier quality and performance before publishing, helping ensure healthy, performant, and more precise classification outcomes. → Microsoft Purview introduces the Classifier Simulation Mode, the first phase of the broader Classifier Health Monitoring Platform.
  29. 4 Nov 2026 · 07:16:39 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  30. 3 Nov 2026 · 10:16:39 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  31. 3 Nov 2026 · 09:13:39 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  32. 28 Oct 2026 · 08:37:56 UTC Link: Microsoft roadmap entryhttps://www.microsoft.com/microsoft-365/roadmap?id=523201 → https://www.microsoft.com/en-us/microsoft-365/roadmap?id=523201
  33. 26 Oct 2026 · 18:49:55 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  34. 26 Oct 2026 · 17:48:57 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  35. 26 Oct 2026 · 06:24:14 UTC Link: Microsoft 365 Message Center Archive by Merill Fernandohttps://mc.merill.net/message/RM523201
  36. 25 Oct 2026 · 20:06:13 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  37. 25 Oct 2026 · 18:13:50 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  38. 24 Oct 2026 · 11:31:34 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  39. 24 Oct 2026 · 09:51:08 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  40. 23 Oct 2026 · 09:33:49 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  41. 23 Oct 2026 · 08:31:50 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  42. 22 Oct 2026 · 18:42:24 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  43. 22 Oct 2026 · 17:41:25 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  44. 21 Oct 2026 · 20:45:25 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  45. 21 Oct 2026 · 19:44:24 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  46. 18 Oct 2026 · 14:54:30 UTC Link: Purview/roadmap?topic=Purview&period=all#items
  47. 15 Oct 2026 · 14:22:54 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  48. 15 Oct 2026 · 13:21:54 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  49. 15 Oct 2026 · 12:20:54 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  50. 15 Oct 2026 · 11:19:54 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
  51. 14 Oct 2026 · 11:54:40 UTC Source coverage: microsoft-365-roadmapIncomplete → Current
  52. 14 Oct 2026 · 11:22:42 UTC Source coverage: microsoft-365-roadmapCurrent → Incomplete
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 20:03 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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