These release notes provide information about new features and nonsecurity updates that are included in the Microsoft Edge Stable Channel.
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.
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.
Version 139.0.3405.86: August 7, 2025
Fixed various bugs and performance issues, feature updates, policy updates, and web platform release notes.
Stable channel security updates are listed here.
Fixes
Fixed an issue where MIP-protected PDF files from different sovereign cloud environments (including GCCH) failed to open and instead displayed the error message: “Need permissions. Contact the owner of the file to give you permissions.”
Fixed an issue, which affected IE mode, including errors when displaying PDF files, running Java applets, and showing the Information Bar in IE mode.
Improved reliability
Fixed a browser crash that occurred on first launch when the BrowserSignin policy was enabled and configured to "Force (2) = Force users to sign-in to use the browser (all profiles)."
Feature updates
Open external links in another profile when recommended by external applications. When Microsoft Edge is set as the default browser to open external links from applications, Microsoft Edge must determine which profile to open the links. Users can control which profile to use through the “Default profile for external links” setting. Applications such as Microsoft Teams or Outlook can also recommend a profile for the links. Currently, the user setting is prioritized over application recommendations. With this feature, the application recommended profile is given priority, instead of the profile selected in the setting. Admins can control the availability of the feature using the EdgeOpenExternalLinksWithAppSpecifiedProfile policy. Note: This is a controlled feature rollout. If you don't see this feature, check back as we continue our rollout.
Changes to Wallet in Microsoft Edge. Wallet is being phased out to support a streamlined experience within Microsoft Edge. This affects the Wallet feature in Settings and the Mini Wallet found by clicking the profile icon in the top banner. Users are directed to the new Passwords, Payment, and Personal Information management experience in Settings. Also, a new Password management experience is available in Settings. For more information, see Changes to Wallet in Microsoft Edge. Note: This is a controlled feature rollout. If you don't see this feature, check back as we continue our rollout.
Introducing a new policy that can enable/disable Microsoft 365 Copilot Chat in Edge for Business from showing in the toolbar. Edge for Business now has a dedicated policy, Microsoft365CopilotChatIconEnabled, to enable and disable Copilot in Edge from showing in the Edge toolbar. When both this policy and HubsSidebarEnabled are configured, this policy takes precedence in determining whether Copilot appears in the toolbar. If this policy isn't configured and HubsSidebarEnabled is disabled, Copilot will remain hidden. In a future release, this policy is the sole control for managing Copilot's visibility in the toolbar.
Real-time notifications for compromised passwords. Microsoft Edge is integrating an in-context password breach notification system. This feature proactively informs users if their saved login credentials have been compromised in known data breaches, enabling them to take immediate action to secure their accounts. Admins can control availability to this feature using the PasswordMonitorAllowed policy. Note: This is a controlled feature rollout. If you don't see this feature, check back as we continue our rollout.
Edge Settings Improvements. Edge Settings is migrating to WebUI2 to boost page responsiveness and introducing a series of minor visual and content upgrades to improve overall usability and utility. This includes optimizing for concise wording of individual settings, simplifying the number of pages and reorganizing content, and creating a cohesive user interface.
New Autofill Personal Information Settings Configuration. A web form field collection consent toggle will be available in Autofill settings (edge://settings/autofill/personalInfo). This allows users to consent to Microsoft Edge collecting web form field labels (e.g., "First Name," "Email") to improve Autofill suggestion accuracy. Only field labels are collected and not user-entered data. The web field labels are stored securely per Microsoft's privacy standards.
This new setting is manageable via existing policies in Autofill (e.g., AutofillAddressEnabled), EdgeAutofillMlEnabled. AutofillAddressEnabledis the parent setting forEdgeAutofillMlEnabled. The EdgeAutofillMlEnabled policy is the parent of this new setting, thus turning off the EdgeAutofillMlEnabled policy turns off this setting.
Web AI APIs for prompt and writing assistance. Microsoft Edge now implements the Writing Assistance APIs and the Prompt API(for Edge extensions) with a local language model, Phi-4-mini, that is built into the browser. These easy-to-use JavaScript APIs are made available via Edge flags (set to Enabled, by default only for the Summarizer and Prompt API for extensions) so that sites and extensions can apply AI capabilities on the web. The small language model is downloaded as the first time any of these APIs is used and later shared across all domains, serving local AI use-cases with reduced cost, network independence, and increased privacy (since data input to the model doesn't leave the user’s device). Admins can control the availability of these APIs via the GenAILocalFoundationalModelSettings policy. These APIs are currently not implemented in China. Read the announcement here, and feel free to provide feedback.
Enhancements to Performance and Secure network. Browser essentials is now separated into two distinct experiences (Performance and Secure Network) - both available from the Settings and more menu (“…” on the menu bar).
Reset Microsoft Edge enterprise sync. For users having problems syncing browsing data across other signed-in devices, they can reset sync data from the Microsoft servers via Edge Settings edge://settings/profiles/sync/reset. This option should only be used if the sync data is available on one of the user's devices or if they want to delete all sync data from the servers. Note: In Microsoft Edge 139, reset sync is enabled for users encountering a "No permissions" MIP error and in Microsoft Edge 140, reset sync is enabled for users encountering a "Service disabled" MIP error.
Update to Microsoft AutoUpdate policy. The MAUEnabled policy allowed admins to continue using Microsoft AutoUpdate on macOS. Since Microsoft Edge now uses EdgeUpdate, the MAUEnabled policy is planned to be obsoleted in Microsoft Edge version 140.
Policy updates
New policies
EdgeOpenExternalLinksWithAppSpecifiedProfile - Prioritize App specified profile to open external links
EnableUnsafeSwiftShader - Allow software WebGL fallback using SwiftShader
MandatoryExtensionsForInPrivateNavigation - Specify extensions users must allow in order to navigate using InPrivate mode
Microsoft365CopilotChatIconEnabled - Control whether Microsoft 365 Copilot Chat shows in the Microsoft Edge for Business toolbar
OnSecurityEventEnterpriseConnector - Configuration policy for Microsoft Edge for Business Reporting Connectors
Obsoleted policies
KeyboardFocusableScrollersEnabled - Enable keyboard focusable scrollers (obsolete)
SelectParserRelaxationEnabled - Controls whether the new HTML parser behavior for the SELECT element is enabled (obsolete)
Note
For the latest web platform features and updates, see Microsoft Edge 139 web platform release notes (August 2025)
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