Release notes for Microsoft Edge extensions

[mikehoffms]

Summary:

• Added Jan 2026 relnotes.
  • Replaced /extensions/whats-new/released-features.md by /extensions/release-notes/index.md.
• New archive.md page contains older relnotes.
  • Added Detailed contents.
  • Changed from h2 Feature change, to: h2 Month Year, h4 Feature change.
• Globally in repo, changed from "What's New" to "What's new".
  • As upstream did. Corp style & industry style changed to sentence-case titles & headings.
• Globally in repo, changed from "Release Notes" to "Release notes".
• Broke out MV2 content into a new, "deprecated" article.
  • b/c MV3 article (which had this "todo") contains field names, possibly referred to by incoming RelNotes.

Related PRs:

• Release notes for Microsoft Edge extensions #3665
• Add "Release notes" section in Readme microsoft/MicrosoftEdge-Extensions#486

Rendered articles for review:

• Release notes for Microsoft Edge extensions

  • /extensions/release-notes/index.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/extensions/release-notes/index?branch=pr-en-us-3665
  • External preview: https://github.com/MicrosoftDocs/edge-developer/blob/user/mikehoffms/extensions-relnotes/microsoft-edge/extensions/release-notes/index.md
  • Planned live: https://learn.microsoft.com/microsoft-edge/extensions/release-notes/
  • New (replacement) article/dir/file.

• Archived release notes for Microsoft Edge extensions

  • /extensions/release-notes/archive.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/extensions/release-notes/archive?branch=pr-en-us-3665
  • External preview: https://github.com/MicrosoftDocs/edge-developer/blob/user/mikehoffms/extensions-relnotes/microsoft-edge/extensions/release-notes/archive.md
  • Planned live: https://learn.microsoft.com/microsoft-edge/extensions/release-notes/archive
  • New page.

• Released features for Microsoft Edge extensions (deleted)

  • /extensions/whats-new/released-features.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/extensions/whats-new/released-features?branch=pr-en-us-3665
  • External preview: https://github.com/MicrosoftDocs/edge-developer/blob/user/mikehoffms/extensions-relnotes/microsoft-edge/extensions/whats-new/released-features.md
  • Before/live: https://learn.microsoft.com/microsoft-edge/extensions/whats-new/released-features
  • Deleted this file. Moved content to the new file.
  • Defined a redirect.
  • No longer the target for redirects; updated those redirects.

• Release notes for Microsoft Edge extensions 144

  • /extensions/release-notes/144.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/extensions/release-notes/144?branch=pr-en-us-3665
  • External preview: https://github.com/MicrosoftDocs/edge-developer/blob/user/mikehoffms/extensions-relnotes/microsoft-edge/extensions/release-notes/144.md
  • Planned live: https://learn.microsoft.com/microsoft-edge/extensions/release-notes/144
  • Added this prototype article, release-specific.

---

Incidental articles

• Manifest file format for extensions

  • /extensions/getting-started/manifest-format.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/extensions/getting-started/manifest-format?branch=pr-en-us-3665
  • External preview: https://github.com/MicrosoftDocs/edge-developer/blob/user/mikehoffms/extensions-relnotes/microsoft-edge/extensions/getting-started/manifest-format.md
  • Before/live: https://learn.microsoft.com/microsoft-edge/extensions/getting-started/manifest-format
  • Moved out the MV2 content.
    • Found & applied this "todo" comment while looking for field names mentioned in incoming relnotes.

• Manifest V2 file format for extensions (deprecated)

  • /extensions/getting-started/manifest-format-v2.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/extensions/getting-started/manifest-format-v2?branch=pr-en-us-3665
  • External preview: https://github.com/MicrosoftDocs/edge-developer/blob/user/mikehoffms/extensions-relnotes/microsoft-edge/extensions/getting-started/manifest-format-v2.md
  • Planned live: https://learn.microsoft.com/microsoft-edge/extensions/getting-started/manifest-format-v2
  • New article.

• /developer/index.yml

• /devtools/about-tools.md

• /devtools/crash-analyzer/index.md

• /devtools/landing/index.yml

• /devtools/overview.md

• /devtools/whats-new/143.md

• /devtools/whats-new/2019/12/devtools.md

• ...

• Develop for the web with Microsoft Edge > heading

  • /develop-web-microsoft-edge.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/develop-web-microsoft-edge?branch=pr-en-us-3665
  • External preview: https://github.com/MicrosoftDocs/edge-developer/blob/user/mikehoffms/extensions-relnotes/microsoft-edge/develop-web-microsoft-edge.md
  • Before/live: https://learn.microsoft.com/microsoft-edge/develop-web-microsoft-edge
  • Changelist:

• Remotely debug Surface Duo emulators > heading

  • /devtools/remote-debugging/surface-duo-emulator.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/devtools/remote-debugging/surface-duo-emulator?branch=pr-en-us-3665
  • External preview: https://github.com/MicrosoftDocs/edge-developer/blob/user/mikehoffms/extensions-relnotes/microsoft-edge/devtools/remote-debugging/surface-duo-emulator.md
  • Before/live: https://learn.microsoft.com/microsoft-edge/devtools/remote-debugging/surface-duo-emulator
  • Changelist:

• Remotely debug Windows devices > heading

  • /devtools/remote-debugging/windows.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/devtools/remote-debugging/windows?branch=pr-en-us-3665
  • External preview:
  • Before/live: https://learn.microsoft.com/microsoft-edge/devtools/remote-debugging/windows
  • Changelist:

• Microsoft Edge extensions documentation > Foo card - Extensions landing page

  • /extensions/landing/index.yml
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/extensions/landing/index?branch=pr-en-us-3665
  • External preview:
  • Before/live: https://learn.microsoft.com/microsoft-edge/extensions/landing/
  • Changelist:

• View Microsoft Edge extensions analytics dashboard > heading

  • /extensions/publish/extensions-analytics.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/extensions/publish/extensions-analytics?branch=pr-en-us-3665
  • External preview:
  • Before/live: https://learn.microsoft.com/microsoft-edge/extensions/publish/extensions-analytics
  • Changelist:

• Reply to user reviews of an extension > heading

  • /extensions/publish/reply-user-reviews.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/extensions/publish/reply-user-reviews?branch=pr-en-us-3665
  • External preview:
  • Before/live: https://learn.microsoft.com/microsoft-edge/extensions/publish/reply-user-reviews
  • Changelist:

• Roadmap for Microsoft Edge extensions > heading

  • /extensions/whats-new/roadmap.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/extensions/whats-new/roadmap?branch=pr-en-us-3665
  • External preview:
  • Before/live: https://learn.microsoft.com/microsoft-edge/extensions/whats-new/roadmap
  • Ignore; other PR deletes article.

• TOC

  • toc.yml
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/extensions/whats-new/released-features?branch=pr-en-us-3665
  • External preview:
  • Before/live: https://learn.microsoft.com/microsoft-edge/extensions/whats-new/released-features
  • Changelist:

• Release notes for Microsoft Edge web platform > heading

  • /web-platform/release-notes/index.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/web-platform/release-notes/index?branch=pr-en-us-3665
  • External preview:
  • Before/live: https://learn.microsoft.com/microsoft-edge/web-platform/release-notes/
  • Changelist:

---

Redirects to test before merge

Redirect 1

tagging:

"source_path": "../microsoft-edge/extensions-chromium/whats-new/released-features.md",
"redirect_url": "/microsoft-edge/extensions/release-notes/index",

url to test:
https://review.learn.microsoft.com/microsoft-edge/extensions-chromium/whats-new/released-features?branch=pr-en-us-3665
result: ok
arrive at:
https://review.learn.microsoft.com/en-us/microsoft-edge/extensions/release-notes/?branch=pr-en-us-3665

Redirect 2

tagging:

"source_path": "../microsoft-edge/extensions-chromium/whats-new/roadmap.md",
"redirect_url": "/microsoft-edge/extensions/release-notes/index",

url to test:
https://review.learn.microsoft.com/microsoft-edge/extensions-chromium/whats-new/roadmap?branch=pr-en-us-3665
result: ok
arrive at:
https://review.learn.microsoft.com/en-us/microsoft-edge/extensions/release-notes/?branch=pr-en-us-3665

Redirect 3

tagging:

"source_path": "../microsoft-edge/extensions/whats-new/roadmap.md",
"redirect_url": "/microsoft-edge/extensions/release-notes/index",

url to test:
https://review.learn.microsoft.com/microsoft-edge/extensions/whats-new/roadmap?branch=pr-en-us-3665
result: ok
arrive at:
https://review.learn.microsoft.com/en-us/microsoft-edge/extensions/release-notes/?branch=pr-en-us-3665

Redirect 4

tagging:

"source_path": "../microsoft-edge/extensions/whats-new/released-features.md",
"redirect_url": "/microsoft-edge/extensions/release-notes/index",

url to test:
https://review.learn.microsoft.com/microsoft-edge/extensions/whats-new/released-features?branch=pr-en-us-3665
result: ok
arrive at:
https://review.learn.microsoft.com/en-us/microsoft-edge/extensions/release-notes/?branch=pr-en-us-3665

Redirect 5

tagging:

"source_path": "../microsoft-edge/extensions/enterprise/match-patterns.md",
"redirect_url": "/microsoft-edge/extensions/developer-guide/match-patterns",

url to test:
https://review.learn.microsoft.com/microsoft-edge/extensions/enterprise/match-patterns?branch=pr-en-us-3665
result: ok
arrive at:
https://review.learn.microsoft.com/en-us/microsoft-edge/extensions/developer-guide/match-patterns?branch=pr-en-us-3665

---

Redirects to test after merge

• https://learn.microsoft.com/microsoft-edge/extensions-chromium/whats-new/released-features
• https://learn.microsoft.com/microsoft-edge/extensions-chromium/whats-new/roadmap
• https://learn.microsoft.com/microsoft-edge/extensions/whats-new/roadmap
• https://learn.microsoft.com/microsoft-edge/extensions/whats-new/released-features
• https://learn.microsoft.com/microsoft-edge/extensions/enterprise/match-patterns

AB#60486139

[G-u-r-j-e-e-t]

"LGTM - PM"

[captainbrosset]

LGTM, modulo a couple of comments.

[learn-build-service-prod]

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[mikehoffms]

LGTM - Writer/Editor

[learn-build-service-prod]

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