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These release notes provide information about new features and nonsecurity updates that are included in the Microsoft Edge Stable and Extended Stable Channels.
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Contents - August - September 2026
| Channel | Latest Major Version | Latest Minor Version |
|---|---|---|
| Stable 154 | 154.0.4258.37 (September 24, 2026) | - |
| Extended Stable 152 | 152.0.4191.53 (August 27, 2026) | 152.0.4191.96 (September 21, 2026) |
Version 154.0.4258.37: September 24, 2026 (Stable) - Main Release
Release Summary
| Category | Description |
|---|---|
| Announcements | Announcements about unload event changes and WIP and MDAG retirement in Microsoft Edge. |
| Feature Updates | Updates to profile setup, third-party sign-in, and password details in Microsoft Edge. |
| Policy Updates | New and updated policies in Microsoft Edge. |
| Security | Stable channel security updates are listed here. |
Announcements
Deprecating the unload event. Microsoft Edge is changing the default behavior of the web platform unload event. As the rollout progresses, pages will no longer run unload event handlers unless the site explicitly permits them.
In Edge 152 and 153, unload handlers will stop firing by default for 60% of page loads unless the site explicitly enables them through Permissions Policy.
In Edge 154, the rollout will increase to 80% of page loads.
In Edge 155, the rollout will reach 100% of page loads.
The unload event is not a dependable way to save data, perform cleanup, or report the end of a session. Browsers and operating systems can suspend or terminate pages without firing it, and this can prevent pages from using the back/forward cache, which may make back and forward navigation slower.
Web developers should migrate to lifecycle events and APIs designed for these scenarios. The long-term direction of the web platform is to remove support for unload.
Retiring Windows Information Protection (WIP) and Microsoft Defender Application Guard (MDAG) in Microsoft Edge. The WIP and MDAG code paths are being retired from Microsoft Edge, aligning Edge with the Windows platform. Windows deprecated both technologies and removed them in Windows 11, version 24H2.
Only tenants that configured WIP or MDAG in Microsoft Edge are impacted by this change. Both features are off by default and require an admin to turn them on, so tenants that never enabled them are not affected. In practice this is a small, Windows 10 population. Both features were committed for Windows 10 only, and both are already unavailable on Windows 11, version 24H2.
For organizations using WIP, use Microsoft Purview Information Protection, Microsoft Purview endpoint DLP, and Data Loss Prevention and also Intune app protection policies for data protections instead of WIP.
For organizations using MDAG, use the built-in Microsoft Edge for Business security capabilities and Microsoft Edge natively supports hardware isolation instead. Also further, Microsoft Defender SmartScreen, Enhanced Security Mode, Data Loss Prevention, and website typo protection is available.
The change rolls out through the normal Microsoft Edge release channels, and will reach general availability with Microsoft Edge Stable 154 around September 24, 2026.
Feature Updates
Improved profile setup in the first run experience. Microsoft Edge now includes a close (X) button in the upper-right corner of the new profile setup during the first run experience. When setup is canceled, Microsoft Edge automatically removes the incomplete profile to prevent unused profiles from being retained.
Sign in to Edge with a Google account. Users can now sign in to Microsoft Edge using a Google account in addition to a Microsoft account from the profile menu and Edge sign-in screen. The feature is available on Windows and macOS devices. Admins can control availability using the NonMicrosoftAccountSignInEnabled policy.
Enhanced Key Icon with Credential Details, Copy Actions, and Notes. The key icon in Microsoft Edge's address bar now lets users open a detailed panel for any saved credential. From there, users can copy a username, reveal and copy a password, and add personal notes to each login. Users can keep security questions, account purposes, or recovery details with credentials without opening Settings or the full password manager.
Policy Updates
New policies
- AutofillSettings - Block AutoFill data types for specific sites
Note
For the latest web platform features and updates, see the Microsoft Edge 154 web platform release notes (Sep. 2026).
Version 152.0.4191.53: August 27, 2026 (Stable) - Main Release
Release Summary
| Category | Description |
|---|---|
| Announcements | Announcements about the unload event deprecation and the new 2-week release cadence in Microsoft Edge. |
| Feature Updates | Updates to sign-in options, password management, Copilot controls, and notification protections in Microsoft Edge. |
| Policy Updates | New and updated policies in Microsoft Edge. |
| Security | Stable channel security updates are listed here. |
Announcements
Deprecating the unload event. Microsoft Edge is changing the default behavior of the web platform unload event. As the rollout progresses, pages will no longer run unload event handlers unless the site explicitly permits them.
In Edge 152 and 153, unload handlers will stop firing by default for 60% of page loads unless the site explicitly enables them through Permissions Policy.
In Edge 154, the rollout will increase to 80% of page loads.
In Edge 155, the rollout will reach 100% of page loads.
The unload event is not a dependable way to save data, perform cleanup, or report the end of a session. Browsers and operating systems can suspend or terminate pages without firing it, and this can prevent pages from using the back/forward cache, which may make back and forward navigation slower.
Web developers should migrate to lifecycle events and APIs designed for these scenarios. The long-term direction of the web platform is to remove support for unload.
Microsoft Edge has completed the move to a 2-week cadence for updates. We have adopted a new, 2-week release cycle for major versions. For more information, see Faster updates, enterprise-friendly schedule: the new Microsoft Edge release cycle - Microsoft Edge Blog.
Feature Updates
Automatically unsubscribe users from notifications sent by scam and malicious sites. Microsoft Edge now helps further protect users from malicious web notifications. When a notification leads users to a site that Microsoft Defender SmartScreen blocks as a scam, phishing, or malware page, Edge automatically stops that source from sending users further notifications. Edge lets users know when this happens. Users can review and restore any of these sites anytime under
edge://settings/privacy/sitePermissions/allPermissions/notifications. Note: This is a controlled feature rollout. If you don't see this change, check back as we continue the rollout.Sign in to Edge with an Apple account. Users can now sign in to Microsoft Edge using an Apple account in addition to the Microsoft account from the profile menu and Edge sign-in screen. Available for Windows and macOS devices. Admins can control availability to this feature using the NonMicrosoftAccountSignInEnabled policy. Note: This is a controlled feature rollout. If you don't see this change, check back as we continue the rollout.
Real-time video translation retirement. Real-time video translation is being retired through a gradual rollout. Availability may vary across environments during the rollout. The LiveVideoTranslationEnabled policy will be deprecated in a future update.
Enhanced Key Icon with Credential Details, Copy Actions, and Notes. The key icon in Edge's address bar now lets users click into any saved credential to view a detailed panel. From there, users can copy a username, reveal and copy a password, and add personal notes to each login. Keep track of security questions, account purpose, or recovery details right alongside credentials, without opening Settings or the full password manager. Note: This is a controlled feature rollout. If you don't see this change, check back as we continue the rollout.
Drop is retired. We're simplifying Microsoft Edge. Drop is retired in Microsoft Edge version 152.
New Copilot Cowork policy. Copilot Cowork may perform tasks such as creating tabs, taking screenshots, and interacting with web pages. Admins can now control availability of this feature using the CopilotCoworkToolActionsEnabled policy, which corresponds to the Allow Cowork to take actions on your behalf setting in
edge://settings/ai. This policy applies only when Cowork Browsing is enabled at the tenant level in the M365 admin center.Clarification of WebView2 DowngradeVersion policy. The DowngradeVersion policy allows admins to temporarily roll back specific applications to a previous WebView2 Evergreen Runtime version (N-1 or N-2). The policy requires an exact 4-part numeric WebView2 Runtime version, for example 151.0.2178.0. Admins can find the exact 4-part version number in the Microsoft Edge release notes for Stable Channel. Major-version-only values are not supported. If no exact matching folder is found, the policy has no effect and the runtime defaults to the BrowserExecutableFolder policy or the Evergreen runtime, which is the default auto-updating runtime.
Update for LocalNetworkAccessRestrictionsTemporaryOptOut policy. The planned removal of the LocalNetworkAccessRestrictionsTemporaryOptOut policy has been updated. The policy is now scheduled for removal after Microsoft Edge version 156; previously it was version 152.
Updated Copilot policy. Admins can now control availability of the video transcription feature using the EdgeEntraCopilotPageContext policy, which corresponds to the Allow Copilot to transcribe your video setting in
edge://settings/ai.
Policy Updates
New policies
- CopilotCoworkToolActionsEnabled - Allow Cowork to take actions on your behalf
- UpdateOnZeroWindowEnabled - Controls background automatic relaunch when all browser windows are closed
- BackForwardCacheForWebSocketsAllowed - Allow Back/Forward Cache for WebSockets
Additional policy changes
- ShowHistoryThumbnails - The ShowHistoryThumbnails policy has been removed.
Note
For the latest web platform features and updates, see the Microsoft Edge 152 web platform release notes (Aug. 2026).
Version 152.0.4191.96: September 21, 2026 (Extended Stable) - Update 5
Release Summary
| Category | Description |
|---|---|
| Fixes | Fixed various bugs and performance issues. |
Version 152.0.4191.88: September 17, 2026 (Extended Stable) - Update 4
Release Summary
| Category | Description |
|---|---|
| Fixes | Fixed various bugs and performance issues. |
Version 152.0.4191.77: September 10, 2026 (Extended Stable) - Update 3
Release Summary
| Category | Description |
|---|---|
| Fixes | Fixed various bugs and performance issues. |
Version 152.0.4191.66: September 04, 2026 (Stable) - Update 2
Release Summary
| Category | Description |
|---|---|
| Fixes | Fixed various bugs and performance issues. |
| Security | Stable channel security updates are listed here. |
Version 152.0.4191.62: September 02, 2026 (Stable) - Update 1
Release Summary
| Category | Description |
|---|---|
| Fixes | Fixed various bugs and performance issues. |
| Security | Stable channel security updates are listed here. |
See also
- All the security updates are listed in Release notes for Microsoft Edge Security Updates.
- Archived release notes for Microsoft Edge Stable Channel are located in Archived release notes for Microsoft Edge Stable Channel.
- Microsoft Edge Enterprise landing page.
- Explore all previous releases.
To understand Microsoft Edge channels, see the Overview of the Microsoft Edge channels.
Note
For the Stable Channel, updates roll out progressively over one or more days. To learn more, see Progressive rollouts for Microsoft Edge updates.
Microsoft Edge Web Platform constantly evolves to improve user experience, security, and privacy. To learn more, see Site compatibility-impacting changes coming to Microsoft Edge.