Microsoft 365 Message Center

Comprehensive archive of Microsoft 365 service updates and feature announcements.

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Message Details
Services
Published
Actions
Microsoft Purview: Insider Risk Management-AI app selection for Generative AI apps indicators
MC1309841
Microsoft Purview
May 14, 2026
Planner is now available in Outlook and Microsoft 365 Copilot
MC1309747
Exchange Online
Planner
May 13, 2026
Microsoft 365 Copilot: Copilot chat pane and Summary feature in OneNote Mobile (Android)
MC1309746
Microsoft 365 apps
May 13, 2026
Microsoft Teams: Report external users for security concerns
MC1309744
Microsoft Teams
May 13, 2026
Viva Engage: Email updates for frontline users without an active Exchange mailbox
MC1309743
Microsoft Viva
May 13, 2026
Microsoft Purview | Data Loss Prevention - Enrich Defender alerts Graph API with DLP event data
MC1309741
Microsoft Purview
May 13, 2026
Using groups to enable Frontier access in the Frontier Admin Control
MC1309739
Microsoft 365 suite
May 13, 2026
PowerPoint for the web: "Review this presentation" skill in Copilot
MC1309737
Microsoft 365 apps
Microsoft 365 Copilot Chat
May 13, 2026
PowerPoint for Mac: "Review this presentation" skill in Copilot
MC1309736
Microsoft 365 apps
Microsoft 365 Copilot Chat
May 13, 2026
PowerPoint for Windows desktop: "Review this presentation" skill in Copilot
MC1309735
Microsoft 365 apps
Microsoft 365 Copilot Chat
May 13, 2026
PowerPoint for the web: “Visualize this slide” skill in Copilot
MC1309733
Microsoft 365 for the web
Microsoft 365 Copilot Chat
May 13, 2026
PowerPoint for Mac: “Visualize this slide” skill in Copilot
MC1309732
Microsoft 365 apps
Microsoft 365 Copilot Chat
May 13, 2026
PowerPoint for Windows desktop: “Visualize this slide” skill in Copilot
MC1309731
Microsoft 365 apps
Microsoft 365 Copilot Chat
May 13, 2026
Outlook Mobile: Follow a meeting option
MC1248393
Exchange Online
Mar 10, 2026
Updated
Microsoft 365 Copilot Mobile App: Capability to drive awareness via Notifications on M365 Admin Center
MC1308856
Microsoft 365 Copilot Chat
May 12, 2026
Updated
Microsoft Teams: External domains anomalies report
MC1219794
Microsoft Teams
Jan 21, 2026
Updated
Microsoft Purview | Data Loss Prevention- DLP to restrict processing external emails in M365 Copilot and Copilot Chat
MC1301714
Microsoft Purview
Microsoft 365 Copilot Chat
May 5, 2026
Updated
Microsoft SharePoint: Retirement of IDCRL authentication protocol and enforcement of OpenID Connect and OAuth protocols
MC1184649Major ChangeAction Required
SharePoint Online
Microsoft OneDrive
Nov 11, 2025
Updated
Microsoft Teams: Meeting Participants Can Request Collaborative Annotation Sessions
MC1019312
Microsoft Teams
Feb 28, 2025
Updated
Microsoft Teams: Distinguish invites among Attendee, Presenter, and Co-organizer emails
MC1009930
Microsoft Teams
Feb 19, 2025
Updated
Updates available for Microsoft 365 Apps for Monthly Enterprise Channel
MC1309508
Microsoft 365 apps
May 13, 2026
Microsoft Purview Content Explorer and Data Explorer: Data Classification List Viewer role required for data access
MC1308860
Microsoft 365 suite
Microsoft Purview
May 12, 2026
Improving Activity Explorer load performance with updated default time range
MC1308858
Microsoft 365 suite
Microsoft Purview
May 12, 2026
Action required: Upgrade macOS 13 devices to maintain Teams desktop access
MC1308857Major ChangeAction Required
Microsoft Teams
May 12, 2026
Collect Diagnostics change to Get Diagnostics for Outlook Mobile and Mac
MC1308855
Microsoft 365 apps
May 12, 2026
Microsoft 365 Copilot: Admins can manage agents at scale with bulk lifecycle actions
MC1308854
Microsoft 365 suite
May 12, 2026
Microsoft Teams: New chat sections for muted and meeting chats
MC1269864Major Change
Microsoft Teams
Apr 3, 2026
Updated
Microsoft 365 Copilot: Multimodal capture in Copilot Notebooks in the OneNote mobile app (iOS)
MC1275566
Microsoft 365 apps
Apr 9, 2026
Updated
Outlook: Support for recommended and automatically applied sensitivity labels in Outlook for iOS and Android
MC1247891
Exchange Online
Mar 9, 2026
Updated
Events in Meet app – Introducing a redesigned, unified Events experience in Microsoft Teams
MC1227087
Microsoft Teams
Feb 5, 2026
Updated
Transitioning Teams Android Device Management from Teams admin Center to the Teams Rooms Pro Management portal
MC1227622Major Change
Microsoft Teams
Microsoft 365 for the web
Feb 6, 2026
Updated
Microsoft Teams Town halls (Teams Premium): Upload custom backgrounds in Manage what attendees see
MC1307982
Microsoft Teams
May 12, 2026
Microsoft 365 Copilot: Copilot chat pane and Summary feature in OneNote Mobile (iPhone)
MC1307979
Microsoft 365 apps
May 12, 2026
Microsoft Teams: AI-powered notes for in-person meetings with Facilitator in Teams Rooms on Android
MC1307888
Microsoft Teams
May 11, 2026
HTML formatting now supported for Message center posts synced to Planner
MC1307883
Microsoft 365 suite
May 11, 2026
Microsoft Teams: Miracast support for Teams Rooms on Windows (Teams Rooms Pro only)
MC1186374
Microsoft Teams
Nov 15, 2025
Updated
Microsoft Loop – Admin Usage Reports
MC929020
Microsoft 365 apps
Nov 8, 2024
Updated
Microsoft Teams Copilot without transcription becomes default for meetings - conversation history now persists
MC1139493
Microsoft Teams
Aug 22, 2025
Updated
Microsoft Loop – Require Existing Microsoft 365 Group for New Loop workspaces
MC929022
Microsoft 365 apps
Nov 8, 2024
Updated
Updated UI for Copilot Chat entry point in Word, Excel and PowerPoint apps
MC1189000
Microsoft 365 apps
Nov 22, 2025
Updated
OneDrive: Simplified file transfer for departing employees
MC1164381
Microsoft OneDrive
Oct 2, 2025
Updated
Microsoft Teams: AI-powered notes for in-person meetings with Facilitator in Teams Rooms on Windows
MC1307512
Microsoft Teams
May 11, 2026
Dynamics 365 Customer Service- Estimate AI credits for agents from forecasted demand
MC1307183
Dynamics 365 Apps
May 11, 2026
Microsoft Power Automate - Automate administrator-level desktop applications in unattended runs
MC1307177
Microsoft Power Automate
May 11, 2026
Updates to SharePoint home sites
MC1304293Major Change
SharePoint Online
May 8, 2026
Microsoft Purview Insider Risk Management: View AI interaction messages for anonymized users
MC1304292
Microsoft Purview
May 8, 2026
Microsoft Purview: Data loss prevention inline controls for prompts in Microsoft Foundry apps and agents
MC1304291
Microsoft Purview
May 8, 2026
2026 Microsoft 365 Packaging Update
MC1304290Major Change
Exchange Online
Microsoft Intune+1 more
May 8, 2026
Lock-free coauthoring in Microsoft Word
MC1304289
Microsoft 365 apps
May 8, 2026
Microsoft Exchange Online: Upcoming secure-by-default changes for Exchange APIs
MC1304287
Exchange Online
May 8, 2026