Outlook for Android will update text and image file previewers with a unified interface matching Word, Excel, and PowerPoint previews. The rollout starts late April 2026, completing by mid-May. Changes include updated icons, action order, and a new Expand button. No action is required.

Outlook for iOS will update attachment actions and previewer experience worldwide from late April to mid-May 2026. New actions include "Preview" and "Send a copy," with renamed actions for consistency. Changes apply by default to all users; no action is required, but user notification is optional.

Microsoft 365 Copilot (Premium) in PowerPoint will let users choose AI models, including OpenAI and Anthropic’s Claude, when editing presentations. This feature, enabled by default, rolls out worldwide from April to May 2026, maintaining existing security and compliance controls with admin option...

We are announcing changes to the email summary in Outlook for Sales

Microsoft 365 Copilot Dashboard will automatically provide AI-generated intelligent summaries by late May 2026, highlighting adoption trends and usage insights for admins. Suggested prompts aid deeper analysis. The feature is on by default, requires no configuration, has no user impact, and can b...

Microsoft Secure Score will add a new recommendation to block outbound traffic from mshta.exe in Microsoft Defender for Endpoint, starting public preview in late March 2026. This reduces risk from attacks using mshta.exe, requires admin action to enable, and impacts compliance monitoring and data...

The Windows 365 In development page for Enterprise and Frontline has been updated with upcoming features expected to roll out soon. Organizations should review and share this information with IT teams and update documentation as needed. No compliance issues have been identified.

Microsoft Teams will retire its legacy third-party meeting and call control APIs on June 30, 2026, removing external hardware/app control of meeting functions in the desktop client. Native Teams controls and supported integration models remain unaffected. Organizations should review and notify us...

The Microsoft Intune service update for March 2026 introduces a new service build, visible in the Tenant Status blade. Users should review the latest features on the What's new page and related blogs to prepare for changes and stay informed about ongoing updates.

Microsoft has identified an issue affecting installation of the March 2026 Windows

(Updated 3-31-2026: The March 2026 Windows non-security preview update has been replaced

We've released updates to the following update channel for Microsoft