Microsoft released Microsoft Edge 145 (version 145.0.3800.97) to the Stable channel in February 2026. The latest release brings important new features, changes, and security-related improvements for enterprise and business users. This article covers what’s new in Microsoft Edge 145, including Workspaces V2 changes, Intune MAM support, Copilot enhancements, new enterprise policies, and security protections.
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What’s new in Microsoft Edge 145 (145.0.3800.97)?
The Microsoft Edge 145.0.3800.58 Stable update focuses heavily on enterprise productivity, security, and manageability. Highlights include:
- Migration of Workspaces to a new V2 architecture
- Cross-tenant support using Intune MAM in Edge for Business
- New Copilot “chat” label and PDF actions like Summarize and Explain
- New watermarking and protected clipboard features for data protection
- Stronger controls for extensions, autofill, and password affiliation
- Multiple new policies for admins to fine-tune user experience and security
Workspaces V2 and sync changes
Edge 145 begins the migration of Workspaces to an improved V2 architecture:
- Workspace data moves from OneDrive/SharePoint to Edge Sync service, improving reliability and performance.
- The collaboration / share functionality of Workspaces is removed.
- For organizations with Sync disabled via policy:
- Existing v1 Workspace data is still migrated to the new architecture.
- New v2 Workspaces created after migration become local-only and won’t sync across devices.
- This rollout starts progressively with Edge Stable v145 and is expected to be fully rolled out from Edge Stable v146.
- Organizations can opt out in v145 by contacting Microsoft CSS before the rollout begins.
This is an important architectural change that admins should communicate to users who rely on shared Workspaces.
Intune MAM and Edge for Business improvements
The Microsoft Edge 145 update expands Edge for Business with cross-tenant support using Intune MAM:
- Allows organizations to apply Intune App Protection Policies to Edge for Business even on devices managed by another tenant.
- Enforces data protection controls such as:
- Clipboard boundaries
- Watermarking
- Protected downloads
- Downloads initiated in Edge can be redirected to OneDrive for Business instead of local disk.
- Adds leak controls for screenshots and DevTools when data protection is enabled.
- Designed for cross-tenant scenarios like contractors, mergers, and acquisitions.
- Currently in public preview.
This makes Edge 145 especially valuable for organizations working with multi-tenant or contractor-heavy environments.
Copilot and PDF enhancements
Microsoft continues to integrate Copilot more deeply into Edge 145:
- Copilot icon update: The icon in the toolbar now includes the label “chat”, making it clearer for users.
- New Copilot actions in PDF reader:
- Adds “Summarize” and “Explain” alongside the existing “Ask Copilot” option.
- Users can generate a concise summary or simplified explanation for an entire PDF or a selected portion.
- These features respect existing enterprise controls and policies.
In addition, PDF Read Aloud has been updated to:
- Start faster and be more reliable.
- Maintain the same Read Aloud experience and entry points.
- Be available only in the new PDF viewer in Edge.
Enterprise policies added or changed in Edge 145
The Microsoft Edge 145 Stable update introduces several new enterprise policies and adjusts how some existing settings behave.
New and updated feature behaviors
AutoplayAllowed policy change:
- When Disabled, Edge now sets media autoplay to “Block” on all sites.
- Previously, Disabled meant “Limit”, which still allowed autoplay on high-engagement sites or active WebRTC streams.
Navigation improvements for Progressive Web Apps (PWAs):
- Edge better decides whether a clicked link should open an installed PWA or open a browser tab, improving the PWA experience.
Enterprise preview for pre-release builds:
- Users can receive pre-release Edge builds directly in their Stable Edge app.
- Built-in rollback lets them switch between pre-release and Stable easily.
- Admins configure this in the Microsoft 365 admin center (public preview).
Refreshed profile flyout:
- Cleaner, clearer profile menu that makes it easier to distinguish work vs personal profiles.
- Preserves organization branding and improves sign-in clarity.
Securely enable AI-generated applications:
- New Safe Hosting extension for AI-generated code execution.
- Controlled by the EdgeSafeHostingExtensionEnabled policy.
Watermarking Protection in Edge for Business (public preview):
- Overlays a persistent watermark on sensitive content to deter unauthorized sharing.
Protected Clipboard in Edge for Business (public preview):
- Uses Purview DLP policies to define trusted boundaries across managed cloud apps.
- Keeps sensitive data safe while still allowing external data to be pasted in when needed.
Password affiliation service:
- Groups related domains as affiliations so the right password suggestions appear across linked sites.
- Admins manage this via PasswordManagerEnabled and PrimaryPasswordSetting policies together.
- Rolled out in a controlled manner, so not all tenants will see it immediately.
The update improves WebGL performance on systems without a real GPU by leveraging Microsoft’s WARP software-based graphics engine. It also resolves various bugs and performance issues present in previous versions.
New policies in Microsoft Edge 145
The following new policies are introduced in the Edge 145.0.3800.58 update:
- DefaultIdleDetectionSetting – Default idle detection setting.
- EdgeSafeHostingExtensionEnabled – Control Microsoft Edge Safe Hosting Extension.
- EditProfileEnabled – Enable or disable editing profile in settings.
- IdleDetectionAllowedForUrls – Allow idle detection on specified sites.
- IdleDetectionBlockedForUrls – Block idle detection on specified sites.
- PasswordManagerPasskeysEnabled – Enable saving passkeys to the password manager.
- ProxyOverrideRules – Configure proxy override rules.
- StaticStorageQuotaEnabled – Control whether storage quota APIs return static values.
- WebAppInstallByUserEnabled – Enable or disable web app installation directly from the browser.
Obsolete policies
- LocalNetworkAccessRestrictionsEnabled – Now marked obsolete.
- UserAgentReduction – Now marked obsolete.
Admins should review these changes to ensure GPOs, Intune profiles, and management baselines are updated accordingly.
Security improvements and extension protections
While detailed Stable channel security updates are listed separately by Microsoft, Edge 145 includes several changes that improve the overall security posture:
- Protection against malicious sideloaded extensions:
- Edge can now detect and revoke malicious sideloaded extensions, reducing the risk from untrusted sources.
- Watermarking Protection and Protected Clipboard (in preview) help enforce data loss prevention (DLP) strategies within the browser.
- Intune MAM integration and password affiliation improve how security and identity are handled across tenants and domains.
For full vulnerability details and CVE references, Microsoft directs admins to the Edge Security Updates release notes.
Should you install the Microsoft Edge 145 update now?
For most organizations, updating to Microsoft Edge 145.0.3800.58 Stable is recommended, especially if you:
- Rely on Edge for Business and Intune for application protection.
- Want to adopt Workspaces V2 early and prepare for the removal of shared Workspaces.
- Need better extension security, data protection, and PDF/Copilot enhancements.
However, admins should:
- Review the Workspaces migration and confirm it won’t disrupt shared workflows.
- Validate new policies like AutoplayAllowed, WebAppInstallByUserEnabled, and EdgeSafeHostingExtensionEnabled in a pilot group before wide rollout.
- Monitor the public preview features (watermarking, protected clipboard, enterprise preview) via targeted release.
Because Stable channel updates roll out progressively, some users may receive the update slightly later.
How to check your Microsoft Edge version
To see if you’re already running Microsoft Edge 145 (145.0.3800.58) or a later build:
- Open Microsoft Edge.
- Click the three-dot (⋯) menu in the top-right corner.
- Select Settings.
- Go to Help and feedback > About Microsoft Edge.
- On the About page, check the Version number.
If your Edge browser hasn’t updated yet, it will automatically download and install the latest Stable build when it becomes available for your device and tenant.
If your browser hasn’t updated yet, Edge will automatically download and install the new version once available.
Frequently Asked Questions
The Edge 145 update introduces Workspaces V2, cross-tenant Intune MAM support, Copilot improvements in the toolbar and PDF reader, new enterprise features like watermarking and protected clipboard, additional password and autofill controls, and several new admin policies.
Yes. Edge 145 starts migrating Workspaces data from OneDrive/SharePoint to Edge Sync service and removes the share/collaboration capability. In organizations with sync disabled, existing Workspaces are migrated, but new v2 Workspaces will be local-only and won’t sync across devices.
With cross-tenant support using Intune MAM, you can apply Intune App Protection Policies to Edge for Business profiles even on devices managed by another tenant. This helps protect data with clipboard restrictions, watermarking, and download controls in cross-tenant scenarios like contractors and mergers.
Yes. Edge 145 adds several policies, including DefaultIdleDetectionSetting, EdgeSafeHostingExtensionEnabled, EditProfileEnabled, PasswordManagerPasskeysEnabled, ProxyOverrideRules, StaticStorageQuotaEnabled, and WebAppInstallByUserEnabled, plus new URL-scoped controls for idle detection.
On most systems, Edge updates automatically. To force a check, go to Settings > Help and feedback > About Microsoft Edge. The browser will check for updates and install the latest Stable version if it’s available for your device.
