Announcements about Workspaces v2 migration and Microsoft 365 Copilot Chat in Microsoft Edge.

Version 148.0.3967.54: May 07, 2026 (Stable)

Release Summary

Announcements: Announcements about Workspaces v2 migration and Microsoft 365 Copilot Chat in Microsoft Edge.

Feature Updates: Updates to Copilot New Tab Page, AI settings, autofill, and authentication in Microsoft Edge.
Policy Updates: New and updated policies in Microsoft Edge.
Security Updates: Stable channel security updates are listed here.

Announcements

• Migration to improved V2 architecture for Workspaces. Workspaces, introduced in Edge in 2022, allows users to create durable sets of tabs that can be saved and shared with others. In order to improve reliability and performance of this feature, the following changes are being made:

1. Migrating data for saved Workspaces from OneDrive/SharePoint to Edge Sync service
2. Removing the collaboration/share functionality of this feature

• For organizations who have disabled Sync through policy, the existing v1 Workspace data will still be migrated to the new architecture. New v2 Workspaces created after migration won't sync across devices and will remain local to each device. This update occurs on a progressive rollout beginning in Edge Stable v145 and will continue rolling out in Edge v148.
• Microsoft 365 Copilot Chat. The Edge internal container page that hosts compliant M365 Copilot chat in the sidebar has been updated. Blocking internal edge:// or chrome-untrusted:// URLs isn't recommended as this may lead to unexpected errors and will disable the Microsoft 365 Sidebar Copilot Chat experience.

Feature Updates

• M365 Copilot Search relevance using work browsing history. With admin approval, Microsoft Edge can now send selected work-related browsing history from third-party apps to Microsoft 365 Copilot to improve search result ranking. When a user searches on Microsoft 365 Copilot Search, M365 Copilot will also surface results from work browsing history when relevant, helping users find recently visited work pages faster. Admins can control availability of this feature using the ShareBrowsingHistoryWithCopilotSearchAllowed policy.
• Password affiliation service. Password autofill suggestions in Edge are currently based on top-level domain matching, which means the same credentials can be suggested on sites like account.microsoft.com and office.microsoft.com. With this feature, Edge groups related domains together across various desktop and mobile properties called affiliations. When a customer visits a URL, the Edge client queries the affiliations backend to obtain "affiliated groups" for that URL. The process involves sending a hash of the visited URLs to the service, which then returns a list of affiliated URLs and ensures that the relevant credentials will be displayed in the autofill suggestions across affiliated domains. Admins must use both the PasswordManagerEnabled and PrimaryPasswordSetting policies together to control access to this feature. Configuring both policies allow admins to ensure no passwords get saved, lookups for autofill are disabled and affiliation endpoint won't be queried.
• Copilot New Tab Page. Search, chat, and explore the web from one search box with Copilot suggested actions and curated work content to help your users get things done faster on the new, refreshed Copilot New Tab Page. Users can also view personalized news and activities. Admins can control availability to this feature using the CopilotNewTabPageEnabled policy.
• Shadow AI. Currently admins can set Purview DLP policies to protect sensitive data from being sent to any Generative AI apps, users get blocked from sending their prompts to LLM when this is triggered and stops their workflow. This new add-on to the feature shows a new UI that will give users the option to be redirected to M365 Copilot, which will open and navigate to this M365 Copilot tab and allow them to send the same prompt there.
• Enhanced Autofill. For desktop users, Microsoft Edge can now autofill additional document types-including passports, driver's licenses, and other specialized forms-on top of your saved addresses. Note: This is a controlled feature rollout. If you don't see this feature, check back as we continue our rollout.
• Allow M365 authentication popups in work profiles. When users are signed in with a work account, some Microsoft 365 sites (for example, microsoft.com, cloud.microsoft, and microsoft365.com) may open authentication pop-up windows to Microsoft sign-in endpoints such as login.microsoftonline.com, login.live.com, or login.microsoft.com. These pop-ups are required to complete sign-in. Microsoft Edge now allows authentication pop-up windows from Microsoft first-party services by default. Admins can control availability to this feature using the M365AuthPopupsInWorkEnabled policy. Note: This is a controlled feature rollout. If you don't see this feature, check back as we continue our rollout.
• 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.

Policy Updates
New policies

• 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
• M365AuthPopupsInWorkEnabled - Allow M365 authentication popups in work profiles
• M365LinksAutoOpenCopilotEnabled - Automatically open Copilot side pane with contextual insights for links opened from Outlook
• MaxConnectionsPerProxyForWebSocket - Maximum number of concurrent connections to the proxy server for WebSocket requests
• SetNTPDefaultFeedTab - Set the default New Tab Page feed tab to Work or Discover
• SharedWorkerExtendedLifetimeEnabled - Enable the extended lifetime option for SharedWorkers