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Some sources, documents or advisories need attention: 270/271 feeds/APIs · 464/464 docs · 8/9 advisories · checked 02:26 UTC Customize Public modeDiscuss ChangeIntel on Discord

AD functional level upgrade planning

Timelines and exceptions · All guidance changes

Active Directory · Official Microsoft guidanceObserved changes retained

Observed content change

1 removed passage (18 words). The changed wording mentions dates and deadlines. Review the source to confirm the effect.

May need admin actionCheck the dates against your plans.

Date or deadline wording
RemovedIdentifying your functional level upgrade
[removed: Applies to: ✅ Windows Server 2025, ✅ Windows Server 2022, ✅ Windows Server 2019, ✅ Windows Server 2016]

Microsoft's wording from Microsoft source, © Microsoft Corporation, under CC BY 4.0. ChangeIntel marks removed and added words, drops formatting and shortens long unchanged stretches.

Read the current Microsoft source · Link to this observation · Compare any two versions

Sections to inspect

  • Identifying your functional level upgrade

Up to 12 section headings from retained before/after evidence. The current source may have changed again.

Why this was flagged

The changed words, with a few words around them, matched these rule categories: dates and deadlines. These matches identify subjects to assess; they do not establish a policy change or applicability.

Observation details · observed 12 Oct 19:50 UTC
Observed by ChangeIntel
12 Oct 19:50 UTC
Source update metadata
14 Apr 23:21 UTC
First observed on this installation
5 Oct 17:50 UTC
Last successful check
25 Oct 22:58 UTC
Next check due
today 04:58 UTC

Observation time is not publication time, and a comparison does not establish an effective date. Full source bodies are not published; this page holds generated summaries, section headings and, as the page's license allows, Microsoft's changed wording. A documentation edit does not confirm feature availability in an environment.

This is an earlier observation; review the latest in My radar.

Timeline

From the capture of 12 Oct 19:50 UTC · an earlier observation

Requirements, exceptions and scope

Extracted automatically from Microsoft's wording. Confirm dates, conditions and whether they apply to you in the source before acting; a month or quarter is a window, not a day.

How this timeline changed

Changes between ChangeIntel's readings of the page, between commits of its source file where Microsoft publishes it, in Internet Archive copies of pages that keep no other history, and entries from Microsoft's own change log (dated as Microsoft dates them). Edits between readings that neither records are unknown.

52 earlier changes
Observed history and review priority

Captured 12 Oct 19:50 UTC; extracted 22 Oct 18:57 UTC. Extractor: microsoft-1/9/d9863eb412f92fa5ec3a8ca32e2dd7cfe8095530f456ecb1866608d1166a435d.

Earlier unavailable versions and edits between checks are unknown. A missing statement requires review; it does not mean the policy was cancelled. Recovered historical statements are not original revision snapshots.

Retained observations · 19

Compact evidence remains available after full document bodies expire. Earlier extractions can have different vocabulary or capture limitations.

Microsoft's edits

History on GitHub

Commits to the page's source in MicrosoftDocs/windowsserverdocs, with Microsoft's own messages. Commit dates can be hours or days before Learn publishes the change. ChangeIntel keeps a copy of each diff, so an edit stays readable here if GitHub stops serving it. Read today 00:34 UTC.

  1. Apply suggestions from code review Served on LearnView diff
  2. New Upgrade in-place article View diff
  3. Fix validation warning View diff
  4. Fix validation warning View diff
  5. Removing special character View diff
  6. Fixing merge conflict View diff
  7. Bulk update to remove preview suffix View diff
  8. Removing local applies to for AD DS View diff
  9. Updating to align with Active Directory Functional Levels View diff
  10. Updates View diff
  11. removed 2008, 2008 R2, 2003, 2000 content and mentions and added tip View diff
  12. Robin minor edits 1 View diff
  13. additional edits 2 View diff
  14. additional edits View diff
  15. 2025 2016 and edits View diff
5 metadata-only edits · author, dates or topic labels, no article text
  1. Update WindowsServerDocs/identity/ad-ds/plan/Identifying-Your-Functional-Level-Upgrade.md Metadata onlyView diff
  2. Apply suggestions from code review Metadata onlyView diff
  3. Bulk update ms.topic, author: robinharwood Metadata onlyView diff
  4. Replace the non-skilling ms.authors Metadata onlyView diff
  5. minor edits final Metadata onlyView diff

Retained observations

  • 23 Oct 09:55 UTC

    Source metadata changed; retained article content is unchanged.

  • 12 Oct 19:50 UTC · shown above
  • 6 Oct 17:57 UTC

    Source metadata changed; retained article content is unchanged.

  • 5 Oct 17:50 UTC

    Baseline for retained history; no earlier retained text to compare.

What changed

First observed 18 Oct 2026

No field changes are shown for this selection.

Cite this recorded revision to keep the same title, summary, facts and links when the page changes.

A day selects the latest observation by the end of that UTC day; today's selection can change until midnight. History starts when this installation records it.

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 26 Oct 02:26 UTC · 270 of 271 readable · 268 fully read · documentation 464/464 current

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