Microsoft Edge安定版

These release notes provide information about new features and nonsecurity updates that are included in the Microsoft Edge Stable and Extended Stable Channels.
Contents - August - September 2026
Stable 153
153.0.4234.32 (September 10, 2026)
Extended Stable 152
152.0.4191.53 (August 27, 2026)
152.0.4191.77 (September 11, 2026)
Version 153.0.4234.32: September 10, 2026 (Stable)
Announcements about retiring windows information protection and deprecating unload event.
Tracking prevention when browsing InPrivate, Changes to local IP address detection, Fading tabs experience retired, Summarize videos toggle in YouTube video menu and Update to WebView2 DowngradeVersion policy.
Announcement
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.
This 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
Administrators who need the lookup to follow a particular network can set a destination that routes over it, using the new PacMyIpAddressIPv4ProbeAddress and PacMyIpAddressIPv6ProbeAddress policies.
Policy updates
New polices
HttpHeaderInjection - Configure HTTP Header Injection for specific URL patterns
LaunchEdgeOnWindowsStartupEnabled - Launch Microsoft Edge on Windows startup
(省略されました)

152.0.4191.53 (August 27, 2026)
Version 152.0.4191.53: August 27, 2026 (Stable)

Contents - July - August 2026
Stable 152
152.0.4191.52 (August 27, 2026)
Stable 151
151.0.4129.59 (July 31, 2026)
151.0.4129.107 (August 24, 2026)
Version 152.0.4191.52: August 27, 2026 (Stable)
Announcements about the unload event deprecation and the new 2-week release cadence in Microsoft Edge.
Updates to sign-in options, password management, Copilot controls, and notification protections in Microsoft Edge.
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.
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.
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.
Drop is retired. We're simplifying Microsoft Edge. Drop is retired in Microsoft Edge 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.
CopilotCoworkToolActionsEnabled - Allow Cowork to take actions on your behalf
UpdateOnZeroWindowEnabled - Controls background automatic relaunch when all browser windows are closed
(省略されました)

Contents - July 2026
Stable 151
151.0.4129.59 (July 31, 2026)
-
Extended Stable 150
150.0.4078.48 (July 02, 2026)
150.0.4078.110 (July 31, 2026)
Version 151.0.4129.59: July 31, 2026 (Stable)
Release Summary
Category
Description
Announcements
Announcements about Microsoft Translator requirements and Drop retirement in Microsoft Edge.
Feature Updates
Updates to clipboard suggestions, passkey sync, Sidebar, and macOS support in Microsoft Edge.
Fixes for third-party extensions in Microsoft Edge.
Policy Updates
New and updated policies in Microsoft Edge.
Announcements
(省略されました)

Add to Plans
Contents - May - July 2026
150.0.4078.65 (July 9, 2026)
Version 150.0.4078.65: July 09, 2026 (Stable)
Release Summary
Category
Description
Fixes
Fixed various bugs and performance issues.
Security
Stable channel security updates are listed here.
Version 150.0.4078.50: July 02, 2026 (Stable) macOS
Release Summary
Category
Description
Fixes
Fixed various bugs and performance issues.
Security
Stable channel security updates are listed here.
(省略されました)

Stable 150
150.0.4078.48 (July 02, 2026)
N/A
149.0.4022.98 (June 26, 2026)
Version 150.0.4078.48: July 2, 2026 (Stable)
Updates macOS, Workspaces Migration, and Sidebar Retirement.
Announcements
Migrating data for saved Workspaces from OneDrive/SharePoint to Edge Sync service
Removing the collaboration/share functionality of this feature
Feature Updates
Clarify choices surrounding third-party cookie settings. Language under 'Settings > Privacy, search, and services > Cookies' is updated to better describe the choices users have when managing third-party cookies.
Intune MAM Protected Downloads. The protected downloads feature for Intune MAM now saves downloaded files to the 'Documents > Microsoft Edge > Downloads' folder in OneDrive.
Policy Updates
New policies
AllowSocketPoolSizeRandomizationForProxies - Allow socket pool size randomization for proxies
NonMicrosoftAccountSignInEnabled - Enable sign-in to Microsoft Edge using non-Microsoft accounts
StrictMimetypeCheckForWorkerScriptsEnabled - Enable strict MIME type checking for worker scripts
Note
For the latest web platform features and updates, see the Microsoft Edge 150 web platform release notes (Jul. 2026).
(省略されました)

Subscribe via RSS | Previous Releases | Known Issues
Contents - May - June 2026
Stable 149
149.0.4022.52 (June 04, 2026)
Stable 148
148.0.3967.54 (May 07, 2026)
148.0.3967.96 (May 28, 2026)
Version 149.0.4022.52: June 04, 2026 (Stable)
Updates to passkey sync, Collections retirement, and Copilot Chat policy controls in Microsoft Edge.
Security
Announcement
Clarify choices surrounding third-party cookie settings. Language under Settings > Privacy, search, and services > Cookies are clarified to better describe the choices users have in managing third-party cookies.
Intune MAM Protected Downloads. The protected downloads feature for Intune MAM is now available for BYOD (Bring Your Own Device) devices, which aren't managed by a tenant.
CopilotAddressBarSuggestionsEnabled - Enable Copilot address bar suggestions
CpuPerformanceTierOverride - Override for the CPU performance tier
DataUrlInWebWorkerOpaqueOriginEnabled - Enable opaque origins for data URLs in Web Workers
DefaultLocalFontsSetting - Default Local Fonts permission setting
ForceForegroundPriorityForUrls - Force foreground priority for specific URLs
LocalFontsAllowedForUrls - Allow Local Fonts permission on these sites
(省略されました)

Reading mode
Contents - April - May 2026
Stable 148
148.0.3967.54 (May 07, 2026)
Stable 147
147.0.3912.60 (April 10, 2026)
147.0.3912.98 (April 30, 2026)
Version 148.0.3967.54: May 07, 2026 (Stable)
Announcements about Workspaces v2 migration and Microsoft 365 Copilot Chat in Microsoft Edge.
Updates to Copilot New Tab Page, AI settings, autofill, and authentication in Microsoft Edge.
Security Updates
Updated AI settings page. Settings for Copilot features now are housed under one AI settings page to create a cohesive setting experience. Existing admin controls and policy configurations continue to apply.
AllowBrowsingWithCopilot - Controls the availability of browsing with Copilot in Microsoft Edge.
BrowsingWithCopilotAllowList - Browsing with Copilot Allowed URLs
BrowsingWithCopilotBlockList - Browsing with Copilot Blocked URLs
ConfigureNTPFeedTabVisibility - Configure whether the Discover or Work feed tabs are shown on the New Tab Page.
CopilotNewTabPageEnabled - Enable the Copilot new tab page
DeveloperToolsAvailabilityAllowlist - List of URL patterns for which developer tools are allowed to be opened
DeveloperToolsAvailabilityBlocklist - List of URL patterns for which developer tools are blocked
(省略されました)

Contents - March - April 2026
Channel
147.0.3912.60 (April 10, 2026)
-
146.0.3856.59 (March 13, 2026)
146.0.3856.109 (April 06, 2026)
Version 147.0.3912.60: April 10, 2026 (Stable)
Release Summary
Category
Description
Announcements
Announcements about changes to Microsoft Edge.
Feature Updates
Updates to new and existing features in Microsoft Edge.
Policy Updates
New and updated policies in Microsoft Edge.
Security
Stable channel security updates are listed here.
Announcements
(省略されました)

Contents - January - March 2026
Release Channel
146.0.3856.59 (March 13, 2026)
N/A
Stable
145.0.3800.97 (March 6, 2026)
Version 146.0.3856.59: March 13, 2026 (Stable)
Release Summary
Category
Description
Feature Updates
New features and enhancements for the browser.
Policy Updates
Updated policies for better security and usability.
Security
Stable channel security updates are listed here.
Announcement
Microsoft Edge supported operating systems for macOS. Edge version 150 is currently planned to be the last release that supports macOS 12 (Monterey). Under this plan, Edge version 151 or later will require macOS 13 (Ventura) or later.
Migrating data for saved Workspaces from OneDrive/SharePoint to the Edge Sync service.
(省略されました)

Copy Markdown
Print
Microsoft Edge release notes for Stable and Extended Stable Channels
These release notes provide information about new features and nonsecurity updates that are included in the Microsoft Edge Stable and Extended Stable Channels.
Previous Releases | Known Issues
Contents - January - February 2026
Channel
Latest Major Version
Latest Minor Version
Stable
145.0.3800.58 (February 14, 2026)
-
Stable & Extended Stable
144.0.3719.82 (January 16, 2026)
144.0.3719.115 (February 05, 2026)
Version 145.0.3800.58: February 14, 2026 (Stable)
Release Summary
Category
Description
(省略されました)