Microsoft 365 Message Center

Comprehensive archive of Microsoft 365 service updates and feature announcements.

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Message Details	Services	Published	Last Updated
Microsoft 365 Copilot: Intelligent Summaries in Copilot Dashboard MC1266912	Microsoft Viva	Mar 31, 2026	Mar 31, 2026
Microsoft Purview \| Data Loss Prevention MC1266907	Microsoft 365 suite Microsoft Purview	Mar 31, 2026	Mar 31, 2026
Microsoft Secure Score: New recommendation for Microsoft Defender for Endpoint MC1266905	Microsoft Defender XDR	Mar 31, 2026	Mar 31, 2026
Microsoft Teams: Retirement of legacy third‑party meeting and call control APIs MC1266901Major ChangeAction Required	Microsoft Teams	Mar 31, 2026	Mar 31, 2026
What’s new in the Microsoft Intune service update for March 2026 MC1266895	Microsoft Intune	Mar 31, 2026	Mar 31, 2026
Updates available for Microsoft 365 Apps for Current Channel MC1266850	Microsoft 365 apps	Mar 31, 2026	Mar 31, 2026
Updated Filter Pane in SharePoint Document Libraries and Lists MC1229956	SharePoint Online	Feb 9, 2026 Updated	Mar 31, 2026
Retirement of -Credential parameter when connecting to Exchange Online PowerShell MC1248389Major Change	Exchange Online	Mar 10, 2026 Updated	Mar 31, 2026
Dynamics 365 Sales - Engage leads with deeper knowledge by connecting any data source to Sales Development agent MC1266651	Dynamics 365 Apps	Mar 31, 2026	Mar 31, 2026
Microsoft 365 Copilot: Graph APIs for agent and app management MC1173195	Microsoft 365 Copilot Chat	Oct 15, 2025 Updated	Mar 31, 2026
Outlook: Support for recommended and automatically applied sensitivity labels in Outlook for iOS and Android MC1247891	Exchange Online	Mar 9, 2026 Updated	Mar 31, 2026
Microsoft 365 Copilot \| PowerPoint now supports enterprise image libraries via AEM (Adobe Experience Manager) MC1217648	Microsoft 365 apps	Jan 14, 2026 Updated	Mar 31, 2026
Improved copy and paste support for @mentions and shared contacts in Microsoft Teams MC1250273	Microsoft Teams	Mar 12, 2026 Updated	Mar 31, 2026
High Volume Email for Microsoft 365 now generally available MC1243552	Exchange Online	Mar 4, 2026 Updated	Mar 31, 2026
Flexible layout for Teams meetings with resizable divider MC1190199	Microsoft Teams	Nov 26, 2025 Updated	Mar 31, 2026
Microsoft Teams Rooms: Front-of-room view control for Town Halls on Android MC1182706	Microsoft Teams	Nov 4, 2025 Updated	Mar 31, 2026
Planner tab support for Shared and Private Channels in Microsoft Teams MC1262590Major Change	Planner Microsoft Teams	Mar 26, 2026 Updated	Mar 31, 2026
Dynamics 365 Sales - Connect Fabric Lakehouse data to AI‑powered sales research MC1266582	Dynamics 365 Apps	Mar 31, 2026	Mar 31, 2026
Microsoft 365 admin center: Organizational Messages to support email delivery MC1189665	Microsoft 365 suite Microsoft 365 Copilot Chat	Nov 25, 2025 Updated	Mar 30, 2026
Microsoft Teams: New experience when users minimize the meeting window MC1266027	Microsoft Teams	Mar 30, 2026	Mar 30, 2026
One-time email passcodes for external presenters in Teams events MC1266026	Microsoft Teams	Mar 30, 2026	Mar 30, 2026
Update on custom domain guidance for Teams Event emails MC1266025	Microsoft Teams	Mar 30, 2026	Mar 30, 2026
Microsoft 365 Copilot: Comprehensive Copilot metrics in Copilot Analytics MC1266023	Microsoft Viva	Mar 30, 2026	Mar 30, 2026
Microsoft Teams: Auto-detect spoken language in multilingual meetings MC1266022	Microsoft Teams	Mar 30, 2026	Mar 30, 2026
Microsoft 365 Copilot: New chat-first design for the Copilot mobile app MC1266021	Microsoft 365 apps Microsoft 365 Copilot Chat	Mar 30, 2026	Mar 30, 2026
Microsoft Purview: eDiscovery (Premium) – Review set per case limit increase MC1266018Major Change	Microsoft Purview	Mar 30, 2026	Mar 30, 2026
Microsoft Purview \| Data Security Investigations – Introducing new personal data examination MC1266016Major Change	Microsoft Purview	Mar 30, 2026	Mar 30, 2026
Microsoft Purview \| Information Protection: Sensitivity label grouping modernization MC1111778	Microsoft 365 suite	Jul 8, 2025 Updated	Mar 30, 2026
Microsoft Edge: Copilot new tab page MC1250274	Microsoft 365 suite	Mar 12, 2026 Updated	Mar 30, 2026
Brand impersonation protection for Teams Calling MC1219793	Microsoft Teams	Jan 21, 2026 Updated	Mar 30, 2026
Dynamics 365 Contact Center - Identify your customers with enhanced authentication MC1265792	Dynamics 365 Apps	Mar 30, 2026	Mar 30, 2026
Dynamics 365 Contact Center – Evaluate multiple conversations using Quality Evaluation Agent MC1265787	Dynamics 365 Apps	Mar 30, 2026	Mar 30, 2026
Events in Meet app – Introducing a redesigned, unified Events experience in Microsoft Teams MC1227087	Microsoft Teams	Feb 5, 2026 Updated	Mar 30, 2026
Microsoft 365 Copilot: Admins will be able to enable third‑party model providers for specific users and groups MC1263276	Microsoft 365 suite	Mar 27, 2026 Updated	Mar 30, 2026
Copilot Cowork now available in Frontier MC1265767	Microsoft 365 Copilot Chat	Mar 30, 2026	Mar 30, 2026
Auto Critique and Model Council features in Researcher (Frontier program) MC1265765	Microsoft 365 Copilot Chat	Mar 30, 2026	Mar 30, 2026
Microsoft Teams: Collaborative Notes in Chats MC1148543Major Change	Microsoft Teams	Sep 5, 2025 Updated	Mar 30, 2026
Dynamics 365 Customer Insights - Journeys - Boost engagement with Copilot-powered conversational text messages MC1265755	Dynamics 365 Apps	Mar 30, 2026	Mar 30, 2026
Dynamics 365 Customer Service – Case sentiment insights MC1265753	Dynamics 365 Apps	Mar 30, 2026	Mar 30, 2026
Dynamics 365 Customer Service - Simulate case‑resolution flows before production MC1265750	Dynamics 365 Apps	Mar 30, 2026	Mar 30, 2026
Microsoft Teams: Secure file and Loop sharing in external 1:1, group and meeting chats MC1181772	Microsoft Teams	Oct 31, 2025 Updated	Mar 30, 2026
Dynamics 365 Contact Center - Consent-Based Recording for Voice Interactions MC1265742	Dynamics 365 Apps	Mar 30, 2026	Mar 30, 2026
Microsoft Teams: New slash command in compose to create workflows MC1254553Major Change	Microsoft Teams	Mar 17, 2026 Updated	Mar 30, 2026
Microsoft Teams: Building‑level insights on the Teams Rooms Pro Management portal recommended actions page MC1257308	Microsoft Teams	Mar 20, 2026 Updated	Mar 30, 2026
Dynamics 365 Customer Service - Unify next‑step suggestions across Microsoft AI and custom agents MC1265733	Dynamics 365 Apps	Mar 30, 2026	Mar 30, 2026
Dynamics 365 Customer Service - Enhance timeline with AI-driven filtering and attribution MC1265732	Dynamics 365 Apps	Mar 30, 2026	Mar 30, 2026
Microsoft 365 apps for Mac suite installer now includes the Microsoft 365 Copilot app MC1230456	Microsoft 365 suite Microsoft 365 apps	Feb 10, 2026 Updated	Mar 30, 2026
Dynamics 365 Contact Center - Cancel voice consult with external number MC1265722	Dynamics 365 Apps	Mar 30, 2026	Mar 30, 2026
Dynamics 365 Contact Center - Use SMS channel to engage with customers proactively MC1265721	Dynamics 365 Apps	Mar 30, 2026	Mar 30, 2026
Dynamics 365 Sales - Find, filter, and sort using natural language with smart grid MC1265717	Dynamics 365 Apps	Mar 30, 2026	Mar 30, 2026