Microsoft Edge 150 web platform release notes (Jul. 2026) by captainbrosset · Pull Request #3824 · MicrosoftDocs/edge-developer

captainbrosset · 2026-06-02T15:47:05Z

Rendered article for review:

Microsoft Edge 150 web platform release notes (Jul. 2026)
- /web-platform/release-notes/150.md
- Internal preview: https://review.learn.microsoft.com/microsoft-edge/web-platform/release-notes/150?branch=pr-en-us-3824
- External preview:
- Planned live: https://learn.microsoft.com/microsoft-edge/web-platform/release-notes/150
- New article.
toc.yml
- Added 150.
- Archived 140.
Microsoft Edge 142 web platform release notes (Oct. 2025)
- /web-platform/release-notes/142.md
- Internal preview: https://review.learn.microsoft.com/microsoft-edge/web-platform/release-notes/142?branch=pr-en-us-3824
- External preview:
- Planned live: https://learn.microsoft.com/microsoft-edge/web-platform/release-notes/142
- Removed section:
  - AccentColor and AccentColorText system colors
Microsoft Edge 146 web platform release notes (Mar. 2026)
- /web-platform/release-notes/146.md
- Internal preview: https://review.learn.microsoft.com/microsoft-edge/web-platform/release-notes/146?branch=pr-en-us-3824
- External preview:
- Planned live: https://learn.microsoft.com/microsoft-edge/web-platform/release-notes/146
- Removed section:
  - Web app scope system accent color
Microsoft Edge 147 web platform release notes (Apr. 2026)
- /web-platform/release-notes/147.md
- Internal preview: https://review.learn.microsoft.com/microsoft-edge/web-platform/release-notes/147?branch=pr-en-us-3824
- External preview:
- Planned live: https://learn.microsoft.com/microsoft-edge/web-platform/release-notes/147
- Removed section:
  - Web App Origin Migration
Microsoft Edge 148 web platform release notes (May 2026)
- /web-platform/release-notes/148.md
- Internal preview: https://review.learn.microsoft.com/microsoft-edge/web-platform/release-notes/148?branch=pr-en-us-3824
- External preview:
- Planned live: https://learn.microsoft.com/microsoft-edge/web-platform/release-notes/148
- Linked to specific wv2 relnotes anchor.
Microsoft Edge 149 web platform release notes (Jun. 2026)
- /web-platform/release-notes/149.md
- Internal preview: https://review.learn.microsoft.com/microsoft-edge/web-platform/release-notes/149?branch=pr-en-us-3824
- External preview:
- Planned live: https://learn.microsoft.com/microsoft-edge/web-platform/release-notes/149
- Removed sections:
  - Disable SVG filters on cross-origin iframes and plugins
  - Get notified when the scrollBy and scrollTo methods complete
/scripts/beta-release-notes-template.njk
- "See also" link templates: removed "()", to prevent build error.
- Linked to "Site compatibility-impacting changes coming to Microsoft Edge".
/scripts/web-platform-release-notes.js
- Fixed period after 3-letter month abbreviation.

AB#62543609

captainbrosset · 2026-06-03T12:41:24Z

+<!-- ------------------------------ -->
+#### Animatable zoom
+
+<!-- todo: feature is not 100% guaranteed to ship in 150. Verify if listed at https://chromestatus.com/roadmap before merging. -->


feature is not 100% guaranteed to ship in 150. Verify if listed at https://chromestatus.com/roadmap before merging

captainbrosset · 2026-06-03T12:41:28Z

+<!-- ------------------------------ -->
+#### Allow optional rounding parameter for `polygon()`
+
+<!-- todo: feature is not 100% guaranteed to ship in 150. Verify if listed at https://chromestatus.com/roadmap before merging. -->


feature is not 100% guaranteed to ship in 150. Verify if listed at https://chromestatus.com/roadmap before merging

captainbrosset · 2026-06-03T12:41:32Z

+
+#### `AccentColor` and `AccentColorText` system colors
+
+<!-- todo: feature is not 100% guaranteed to ship in 150. Verify if listed at https://chromestatus.com/roadmap before merging. -->


feature is not 100% guaranteed to ship in 150. Verify if listed at https://chromestatus.com/roadmap before merging

mikehoffms

LGTM - Writer/Editor

learn-build-service-prod · 2026-06-05T18:21:50Z

Learn Build status updates of commit 5974e54:

✅ Validation status: passed

File	Status	Preview URL
microsoft-edge/toc.yml	✅Succeeded	View
microsoft-edge/web-platform/release-notes/142.md	✅Succeeded	View
microsoft-edge/web-platform/release-notes/146.md	✅Succeeded	View
microsoft-edge/web-platform/release-notes/147.md	✅Succeeded	View
microsoft-edge/web-platform/release-notes/148.md	✅Succeeded	View
microsoft-edge/web-platform/release-notes/149.md	✅Succeeded	View
microsoft-edge/web-platform/release-notes/150.md	✅Succeeded	View
scripts/beta-release-notes-template.njk	✅Succeeded
scripts/web-platform-release-notes.js	✅Succeeded

For more details, please refer to the build report.

learn-build-service-prod · 2026-06-05T18:24:07Z

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

mikehoffms · 2026-06-05T18:29:31Z

+| `focusgroup` HTML attribute | Standardizes keyboard navigation for composite widgets such as toolbars, tabs, menus, and radio groups. | [Register](https://developer.microsoft.com/microsoft-edge/origin-trials/trials/6d4b86e7-230c-4d23-ab2b-ee8d05f18702) |
+| URL and eval hashes in CSP script-src | Introduces url- and eval- hashes for `script-src` CSP directives, replacing hostname-based allowlists and `unsafe-eval`. | [Register](https://developer.microsoft.com/microsoft-edge/origin-trials/trials/6bd50a0d-6f30-425f-beba-034be41bb013) |
+| Web Install API | Allows a website to install another website as a web app by using `navigator.install()`. | [Register](https://developer.microsoft.com/microsoft-edge/origin-trials/trials/bcf7d28f-6bdf-45d8-9207-63c97a042407) |
+| <!-- new -->`OpaqueRange` | Enables creating live ranges over text inside `<input>` and `<textarea>` elements that automatically update as the user edits.  These ranges support geometry methods such as `getBoundingClientRect()` and the CSS Custom Highlight API, which enables use cases such as caret-positioned popups and inline spell-check highlighting directly on form controls, without cloning elements or exposing internal DOM structure. | [Register](https://developer.microsoft.com/en-us/microsoft-edge/origin-trials/trials/5f4620e8-2969-4579-a5c6-304b8fae7200) |


For the OT table, copied rows from 149.md based on the Register GUID.
In rows that are not in 149.md, added a  flag, which can be removed.
@captainbrosset pls review wording of 6 OT rows marked .

mikehoffms · 2026-06-05T18:32:42Z

+| WebAssembly custom descriptors | Stores data associated with source-level types more efficiently, in custom descriptor objects. | [Register](https://developer.microsoft.com/microsoft-edge/origin-trials/trials/f1227421-7d96-4380-b588-cbe9806aa7a3) |
+| Soft navigation heuristics | Exposes soft-navigation heuristics for collecting performance metrics in single-page apps. | [Register](https://developer.microsoft.com/microsoft-edge/origin-trials/trials/ec952482-49f0-4980-a451-13ea3f9a7220) |
+| WebNN | Build and execute hardware-accelerated machine-learning models directly in your web app. | [Register](https://developer.microsoft.com/microsoft-edge/origin-trials/trials/19857284-cf52-484b-8b09-8ca50ac9dccb) |
+| `focusgroup` HTML attribute | Standardizes keyboard navigation for composite widgets such as toolbars, tabs, menus, and radio groups. | [Register](https://developer.microsoft.com/microsoft-edge/origin-trials/trials/6d4b86e7-230c-4d23-ab2b-ee8d05f18702) |


If focusgroup is confirmed to be shipping with 150 (see regular section https://review.learn.microsoft.com/en-us/microsoft-edge/web-platform/release-notes/150?branch=pr-en-us-3824#focusgroup-attribute above), then remove this origin trial row.

learn-build-service-prod · 2026-06-05T19:32:35Z

Learn Build status updates of commit 5208dd6:

✅ Validation status: passed

File	Status	Preview URL
microsoft-edge/toc.yml	✅Succeeded	View
microsoft-edge/web-platform/release-notes/142.md	✅Succeeded	View
microsoft-edge/web-platform/release-notes/146.md	✅Succeeded	View
microsoft-edge/web-platform/release-notes/147.md	✅Succeeded	View
microsoft-edge/web-platform/release-notes/148.md	✅Succeeded	View
microsoft-edge/web-platform/release-notes/149.md	✅Succeeded	View
microsoft-edge/web-platform/release-notes/150.md	✅Succeeded	View
scripts/beta-release-notes-template.njk	✅Succeeded
scripts/web-platform-release-notes.js	✅Succeeded

For more details, please refer to the build report.

learn-build-service-prod · 2026-06-05T19:32:52Z

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

New web platform release notes for 150

00e01cb

mikehoffms added the cat: webplatform Web Platform-related content. label Jun 2, 2026

mikehoffms added 2 commits June 2, 2026 12:14

Merge branch 'main' into web-platform-release-notes-150

2adfd7c

initial cleanup, toc

75dd791

mikehoffms added the in-progress label Jun 2, 2026

mikehoffms changed the title ~~New web platform release notes for 150~~ Microsoft Edge 150 web platform release notes (Jul. 2026) Jun 2, 2026

mikehoffms reviewed Jun 2, 2026

View reviewed changes

Comment thread microsoft-edge/web-platform/release-notes/150.md

MicrosoftDocs deleted a comment from learn-build-service-prod Bot Jun 2, 2026

move css sections up

e8fe3f4

MicrosoftDocs deleted a comment from learn-build-service-prod Bot Jun 2, 2026

esc elems in link text, update localtoc

f109ddc

MicrosoftDocs deleted a comment from learn-build-service-prod Bot Jun 2, 2026

Moved features, covered CSS and HTML

8fc4fcd

MicrosoftDocs deleted a comment from learn-build-service-prod Bot Jun 3, 2026

Fix date formatting

3f78bfe

MicrosoftDocs deleted a comment from learn-build-service-prod Bot Jun 3, 2026

captainbrosset added 2 commits June 3, 2026 12:29

Edits for Web APIs

dcb2c5b

OT

b4336fb

captainbrosset removed the in-progress label Jun 3, 2026

captainbrosset marked this pull request as ready for review June 3, 2026 12:37

MicrosoftDocs deleted a comment from learn-build-service-prod Bot Jun 3, 2026

captainbrosset commented Jun 3, 2026

View reviewed changes

Comment thread microsoft-edge/web-platform/release-notes/150.md Outdated

Apply suggestion from @captainbrosset

dd8dc82

MicrosoftDocs deleted a comment from learn-build-service-prod Bot Jun 3, 2026

Apply suggestion from @captainbrosset

9f169c8

mikehoffms reviewed Jun 3, 2026

View reviewed changes

Comment thread microsoft-edge/web-platform/release-notes/150.md Outdated

mikehoffms added 2 commits June 3, 2026 10:30

porperty, attr="value"

6930fc5

abbrev table col2 intros

76fff2d

MicrosoftDocs deleted a comment from learn-build-service-prod Bot Jun 3, 2026

captainbrosset and others added 2 commits June 4, 2026 09:34

Apply suggestion from @captainbrosset

fbcfd46

copy OT rows from 149 to 150

5974e54

MicrosoftDocs deleted a comment from learn-build-service-prod Bot Jun 5, 2026

mikehoffms approved these changes Jun 5, 2026

View reviewed changes

mikehoffms reviewed Jun 5, 2026

View reviewed changes

en-us

5208dd6

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Microsoft Edge 150 web platform release notes (Jul. 2026)#3824

Microsoft Edge 150 web platform release notes (Jul. 2026)#3824
captainbrosset wants to merge 16 commits into
mainfrom
web-platform-release-notes-150

captainbrosset commented Jun 2, 2026 •

edited by mikehoffms

Loading

Uh oh!

Uh oh!

captainbrosset Jun 3, 2026

Uh oh!

captainbrosset Jun 3, 2026

Uh oh!

captainbrosset Jun 3, 2026

Uh oh!

Uh oh!

Uh oh!

mikehoffms left a comment

Uh oh!

learn-build-service-prod Bot commented Jun 5, 2026

Uh oh!

learn-build-service-prod Bot commented Jun 5, 2026

Uh oh!

mikehoffms Jun 5, 2026 •

edited

Loading

Uh oh!

mikehoffms Jun 5, 2026

Uh oh!

learn-build-service-prod Bot commented Jun 5, 2026

Uh oh!

learn-build-service-prod Bot commented Jun 5, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants


		#### `AccentColor` and `AccentColorText` system colors

		<!-- todo: feature is not 100% guaranteed to ship in 150. Verify if listed at https://chromestatus.com/roadmap before merging. -->

Conversation

captainbrosset commented Jun 2, 2026 • edited by mikehoffms Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

Uh oh!

captainbrosset Jun 3, 2026

Choose a reason for hiding this comment

Uh oh!

captainbrosset Jun 3, 2026

Choose a reason for hiding this comment

Uh oh!

captainbrosset Jun 3, 2026

Choose a reason for hiding this comment

Uh oh!

Uh oh!

Uh oh!

mikehoffms left a comment

Choose a reason for hiding this comment

Uh oh!

learn-build-service-prod Bot commented Jun 5, 2026

✅ Validation status: passed

Uh oh!

learn-build-service-prod Bot commented Jun 5, 2026

PoliCheck Scan Report

✅ No issues found

More information about PoliCheck

Uh oh!

mikehoffms Jun 5, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Choose a reason for hiding this comment

Uh oh!

mikehoffms Jun 5, 2026

Choose a reason for hiding this comment

Uh oh!

learn-build-service-prod Bot commented Jun 5, 2026

✅ Validation status: passed

Uh oh!

learn-build-service-prod Bot commented Jun 5, 2026

PoliCheck Scan Report

✅ No issues found

More information about PoliCheck

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

captainbrosset commented Jun 2, 2026 •

edited by mikehoffms

Loading

mikehoffms Jun 5, 2026 •

edited

Loading