Microsoft 365 Message Center

Comprehensive archive of Microsoft 365 service updates and feature announcements.

Showing 890 recently active messages. Use Ctrl K to search all 3350 archived updates.

Loading the full active message index for filtering and pagination. The page starts with a crawlable snapshot to keep the initial HTML fast.
Message Details
Services
Published
Actions
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
Microsoft 365 Copilot (including Copilot Chat): Admin notifications for Copilot mobile app on macOS
MC1308856
Microsoft 365 Copilot Chat
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
Microsoft 365 admin center - Usage reports: Agent usage (preview)
MC1148545
Microsoft 365 suite
Sep 5, 2025
Updated
Microsoft Purview: Data Lifecycle Management - Retention support Microsoft Teams call logs
MC1261586Major Change
Microsoft Purview
Mar 25, 2026
Updated
Microsoft Teams: Chat with anyone with an email address
MC1182004Major Change
Microsoft Teams
Oct 31, 2025
Updated
Microsoft Power Automate - Compare flow versions
MC1303745
Microsoft Power Automate
May 8, 2026
Microsoft Entra: Upcoming changes to federatedTokenValidationPolicy default settings
MC1303719Action Required
Microsoft Entra
May 7, 2026
Default compose font: Administrators can allow users to change the default font in Outlook for iOS and Android
MC1303717
Exchange Online
May 7, 2026
SharePoint News web part: New Filmstrip layout and multi-site news support
MC1303716
SharePoint Online
May 7, 2026
New Feature: Account Manager in Outlook for Windows
MC1129718
Exchange Online
Microsoft 365 apps
Aug 5, 2025
Updated
Retirement of SharePoint One-Time Passcode (SPO OTP) and transition to Microsoft Entra B2B
MC1243549Major Change
SharePoint Online
Microsoft OneDrive
Mar 4, 2026
Updated
Microsoft Teams: Catch up in Teams mobile
MC1260707
Microsoft Teams
Mar 24, 2026
Updated
Microsoft 365 Copilot: Business justification for Copilot license requests
MC1227088
Microsoft 365 suite
Feb 5, 2026
Updated
Microsoft 365 Copilot: New chat-first design for the Copilot mobile app
MC1266021
Microsoft 365 apps
Microsoft 365 Copilot Chat
Mar 30, 2026
Updated
Microsoft Outlook: Automatically display automapped calendars
MC906502
Microsoft 365 for the web
Microsoft 365 apps
Oct 7, 2024
Updated
Dynamics 365 Customer Service - Enable enhanced screen recording controls for admins
MC1302880
Dynamics 365 Apps
May 6, 2026
Updated
Outlook: Support for storing S/MIME certificates in contacts in new Outlook
MC1302908
Exchange Online
Microsoft 365 apps
May 6, 2026
Microsoft Purview compliance portal: Purview SDK embedded in Agent Framework SDK
MC1302905
Microsoft Purview
May 6, 2026
Viva Engage Communities and Storylines in Teams – Individual enablement controls
MC1302904
Microsoft Teams
Microsoft Viva
May 6, 2026
Teams meeting templates: Fundamentals and security upgrade
MC1302903
Microsoft Teams
May 6, 2026
Unlocking deeper Copilot insights with enhanced Power BI filtering
MC1302902
Microsoft Viva
May 6, 2026
Dynamics 365 Project Operations – Use stocked products in resource-based deployments
MC1302876
Dynamics 365 Apps
May 6, 2026