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Microsoft 365 Message Center

Comprehensive archive of Microsoft 365 service updates and feature announcements.

Showing 733 recently active messages. Use Ctrl K to search all 3054 archived updates.

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New admin control for AI‑generated code previews in Microsoft 365 Copilot Pages
MC1254560
Microsoft 365 Copilot Chat
Mar 17, 2026
Microsoft Purview compliance portal: Endpoint DLP classification support for Azure RMS–protected Office documents
MC1254558
Microsoft Purview
Mar 17, 2026
Purview DSPM’s Data Risk Assessments now support item-level investigation and remediation of SharePoint
MC1254556
Microsoft Purview
Mar 17, 2026
Upcoming retirement of select threat detections in Microsoft Defender for Cloud Apps
MC1254554Major Change
Microsoft Defender XDR
Mar 17, 2026
Microsoft Teams: New slash command in compose to create workflows
MC1254553Major Change
Microsoft Teams
Mar 17, 2026
Copilot Notebooks: New features coming to Frontier Public
MC1254552
Microsoft 365 apps
Mar 17, 2026
Power Apps - Custom theming for model-driven apps is becoming generally available
MC1254543
Power Apps
Mar 17, 2026
DLP policies will be able to block Copilot processing of sensitivity‑labeled files in all storage locations
MC1234661
Microsoft 365 suite
Microsoft 365 apps+1 more
Feb 19, 2026
Updated
Retirement of the Semi-Annual Enterprise Channel option in the Office Customization Tool
MC1249427Major Change
Microsoft 365 apps
Mar 12, 2026
Updated
Microsoft Purview | Microsoft Foundry integration with Microsoft Purview for AI
MC1202976
Microsoft Purview
Dec 22, 2025
Updated
[Reminder] Microsoft Teams Premium Self-Service Trials (Originally announced in MC670435)
MC1181209
Microsoft Teams
Oct 29, 2025
Updated
Dynamics 365 Sales - Improve opportunity context with AI-based data enrichment
MC1254454
Dynamics 365 Apps
Mar 17, 2026
Dynamics 365 Sales - Modern, in-flow email template picker for Sequences
MC1254451
Dynamics 365 Apps
Mar 17, 2026
Build SharePoint automations with Workflows—now aligned with the Teams experience
MC1138798
SharePoint Online
Microsoft Teams
Aug 20, 2025
Updated
Outlook: Support for recommended and automatically applied sensitivity labels in Outlook for iOS and Android
MC1247891
Exchange Online
Mar 9, 2026
Updated
Microsoft Purview | Data Loss Prevention – Adaptive scopes for DLP for SharePoint
MC1234571
Microsoft Purview
Feb 18, 2026
Updated
Microsoft Teams - Native MacOS screen and window sharing in Teams meetings
MC1187801
Microsoft Teams
Nov 18, 2025
Updated
Microsoft Teams: Apps now supported in Private Channels
MC1197145
Microsoft Teams
Dec 15, 2025
Updated
Microsoft Purview: Data Loss Prevention - Security Store now available to discover DLP integrations
MC1247882
Microsoft Purview
Mar 9, 2026
Updated
Outlook Mobile: Follow a meeting option
MC1248393
Exchange Online
Mar 10, 2026
Updated
Whiteboards created in Teams channels will now be stored in SharePoint
MC1253753Major Change
Microsoft Teams
Mar 16, 2026
Microsoft Teams: Manage multiple phone numbers within one Teams account
MC1253752Major Change
Microsoft Teams
Mar 16, 2026
Microsoft 365 Copilot: Upload local files now supports .eml and .msg file types
MC1253750
Microsoft 365 Copilot Chat
Mar 16, 2026
Microsoft Entra: Passkeys in Microsoft registration campaigns
MC1253746
Microsoft Entra
Mar 16, 2026
Microsoft 365 Copilot Apps installation on devices with Microsoft 365 Apps
MC1152323Major Change
Microsoft 365 apps
Microsoft 365 Copilot Chat
Sep 12, 2025
Updated
Dynamics 365 Sales - Get additional Dataverse storage capacity
MC1253515
Dynamics 365 Apps
Mar 16, 2026
Dynamics 365 Customer Service - Control evaluation volume with sampling
MC1253514
Dynamics 365 Apps
Mar 16, 2026
Trust DigiCert Global Root G2 certificate authority to avoid Exchange Online email disruption
MC1224565Major ChangeAction Required
Exchange Online
Jan 30, 2026
Updated
Power Apps - Download wrapped apps directly from Dataverse
MC1253499
Power Apps
Mar 16, 2026
Microsoft 365 Copilot: Q&A in Read Aloud enables real-time voice interactions
MC1183010
Microsoft 365 Copilot Chat
Nov 5, 2025
Updated
Microsoft Loop – Require Existing Microsoft 365 Group for New Loop workspaces
MC929022
Microsoft 365 apps
Nov 8, 2024
Updated
Microsoft Outlook for iOS/Android: Improved Contacts with profile enrichment and duplicate management
MC1093912
Exchange Online
Microsoft 365 apps
Jun 13, 2025
Updated
Microsoft 365 Copilot: Podcast voice interactions make audio experiences conversational
MC1183009
Microsoft 365 apps
Nov 5, 2025
Updated
Consult and merge into a meeting or group call via Dual-Tone Multi-Frequency (DTMF)
MC1183611
Microsoft Teams
Nov 7, 2025
Updated
Microsoft Teams: Meeting participants can request collaborative annotation sessions
MC1019312
Microsoft Teams
Feb 28, 2025
Updated
Microsoft 365 Copilot: Business justification for Copilot license requests
MC1227088
Microsoft 365 suite
Feb 5, 2026
Updated
Microsoft Viva Glint: AI-generated survey insights with Copilot highlights
MC1247887
Microsoft Viva
Microsoft 365 Copilot Chat
Mar 9, 2026
Updated
Microsoft Secure Score: New recommendations for Microsoft Defender for Endpoint
MC1251207
Microsoft Defender XDR
Mar 13, 2026
Microsoft Teams: Identify external bots joining your Teams meetings
MC1251206
Microsoft Teams
Mar 13, 2026
Prevent/Fix: Microsoft Purview | Activity Explorer - Total count includes duplicate results
MC1251201
Microsoft 365 suite
Microsoft Purview
Mar 13, 2026
Microsoft Viva Engage | Email sender domain migration from @yammer.com to @engage.mail.microsoft
MC1251200
Microsoft Viva
Mar 13, 2026
(Update)Microsoft Entra ID: General Availability of passkey profiles and migration for existing Passkeys (FIDO2) tenants
MC1221452Major Change
Microsoft Entra
Jan 23, 2026
Updated
Outlook: retiring “Contact Masking” (hide suggested recipients) - March 31, 2026
MC1234566Major ChangeAction Required
Microsoft 365 suite
Feb 18, 2026
Updated
Microsoft 365 Copilot: Planner Agent rename and rollout to premium and basic plans
MC1250279
Planner
Mar 12, 2026
Updated
Content Security Policies (CSP) are coming to SharePoint Online and might impact your custom SPFx solutions
MC1193419Major Change
SharePoint Online
Dec 9, 2025
Updated
Microsoft Teams on the web: New Private Preview for Sign in with Apple and Google for consumers may affect enterprise
MC1102784
Microsoft Teams
Jun 25, 2025
Updated
Microsoft Teams: Private chat for organizers and presenters in structured meetings, webinars, and town halls
MC1188222Major Change
Microsoft Teams
Nov 19, 2025
Updated
Microsoft Teams: Admin setting for simpler meeting passcodes (numeric‑only)
MC1232096
Microsoft Teams
Feb 14, 2026
Updated
Sensitivity labels available soon for Viva Engage communities
MC1250283
Microsoft Viva
Mar 12, 2026
Microsoft Edge: Copilot new tab page
MC1250274
Microsoft 365 suite
Mar 12, 2026
Improved copy and paste support for @mentions and shared contacts in Microsoft Teams
MC1250273
Microsoft Teams
Mar 12, 2026
Introducing awards and certifications section in M365 profile card
MC1250272
Microsoft 365 apps
Mar 12, 2026
Power Apps - Public preview for Microsoft 365 Copilot chat in model-driven apps
MC1250069
Power Apps
Mar 12, 2026
Power Apps - Public preview for Microsoft 365 Copilot chat in canvas apps
MC1250062
Power Apps
Mar 12, 2026
Microsoft Teams: Distinguish invites among Attendee, Presenter, and Co-organizer emails
MC1009930
Microsoft Teams
Feb 19, 2025
Updated
Upcoming change: disabling Teams meeting recording expiration notification emails
MC1245635Major Change
Microsoft Teams
Mar 6, 2026
Updated
High Volume Email for Microsoft 365 upcoming general availability
MC1243552
Exchange Online
Mar 4, 2026
Updated
Copilot entry point changes in Word and handoff to Agent in chat
MC1240704
Microsoft 365 apps
Feb 27, 2026
Updated
Find your files quickly and easily on Word, Excel and PowerPoint App home pages
MC1249435
Microsoft 365 suite
Microsoft 365 apps
Mar 12, 2026
Microsoft Teams: Live transcription in Teams Rooms on Android
MC1249432
Microsoft Teams
Mar 12, 2026
Microsoft Purview | Information Protection – Override manually applied labels and Remove labels with Auto-labeling
MC1249431Major Change
Microsoft 365 suite
Microsoft Purview
Mar 12, 2026
Microsoft Purview compliance portal: Data Security Investigations introduces new soft purge mitigation action
MC1249429
Microsoft Purview
Mar 12, 2026
Retirement of the Semi-Annual Enterprise Channel installation option for unmanaged devices
MC1249428Major Change
Microsoft 365 suite
Mar 12, 2026
Microsoft Purview DLP: Unmanaged cloud app protection with Microsoft Purview and the Island Enterprise Browser
MC1249424
Microsoft Purview
Mar 12, 2026
Microsoft Viva: Viva Glint - Survey Designer Role
MC1218413
Microsoft Viva
Jan 16, 2026
Updated
Microsoft Viva: Viva Glint – New permissions
MC1217642Major Change
Microsoft Viva
Jan 14, 2026
Updated
Microsoft Loop – User Accessible Recycle Bin for Loop workspaces
MC929021
Microsoft 365 apps
Nov 8, 2024
Updated
Microsoft Purview | Information Protection - Content Explorer: Unscanned data and Classification History summary metrics
MC1217640
Microsoft 365 suite
Microsoft Purview
Jan 14, 2026
Updated
Microsoft 365 Copilot: Updates to PowerPoint on‑canvas features with Agent mode
MC1243550
Microsoft 365 Copilot Chat
Mar 4, 2026
Updated
New features coming to Microsoft 365 Copilot Chat for Outlook, Word, Excel, and PowerPoint
MC1187671Major Change
Microsoft 365 Copilot Chat
Nov 18, 2025
Updated
Microsoft Viva: Satisfaction rate metric for Microsoft 365 Copilot in the Copilot analytics dashboard
MC1248394
Microsoft Viva
Mar 10, 2026
Retirement of -Credential parameter when connecting to Exchange Online PowerShell
MC1248389Major Change
Exchange Online
Mar 10, 2026
Plan for Change: Windows Autopatch is enabling hotpatch updates by default
MC1248388
Microsoft Intune
Mar 10, 2026
Updates available for Microsoft 365 Apps for all channels
MC1248387
Microsoft 365 apps
Mar 10, 2026
SharePoint: Migrate the Maps web part to Azure Maps
MC1222981Major Change
SharePoint Online
Jan 28, 2026
Updated
SharePoint: AI citations analytics for documents and pages
MC1247902
SharePoint Online
Mar 9, 2026
Microsoft Entra passkeys on Windows now support phishing-resistant sign-in
MC1247893
Microsoft Entra
Mar 9, 2026
Microsoft Edge: Microsoft 365 Copilot will support summarization and contextual grounding
MC1187682
Microsoft 365 suite
Nov 18, 2025
Updated
Microsoft Purview DLP: New policy configuration options available for inline network and Edge for Business
MC1247881
Microsoft Purview
Mar 9, 2026
Microsoft Intune In Development for March 2026 is now available
MC1247878
Microsoft Intune
Mar 9, 2026
Microsoft Purview | Insider risk management- Insider risk management for risky agents
MC1200579
Microsoft Purview
Dec 19, 2025
Updated
Microsoft Outlook Mobile adds support for DLP policy tips and enforcement
MC1129716
Microsoft 365 apps
Aug 5, 2025
Updated
Microsoft Outlook for Windows: Add attachments while offline
MC1125491
Exchange Online
Microsoft 365 apps
Jul 30, 2025
Updated
Microsoft Purview | Communication Compliance: Policy alerts improvements
MC920304
Microsoft Purview
Oct 28, 2024
Updated
Microsoft Teams: File attachment control now enabled by default in external 1:1 and group chats
MC1181772
Microsoft Teams
Oct 31, 2025
Updated
Power Apps - Enable online mode to access Dataverse for Canvas apps
MC1247618
Power Apps
Mar 9, 2026
Power Apps - Configure offline profile using FetchXML editor
MC1247603
Power Apps
Mar 9, 2026
Microsoft 365: Modern Access Request and Access Denied web page
MC1188599
SharePoint Online
Microsoft OneDrive+1 more
Nov 21, 2025
Updated
Microsoft Outlook: Copilot Chat available in shared and delegate mailboxes
MC1246031Major Change
Microsoft 365 apps
Microsoft 365 Copilot Chat
Mar 6, 2026
Microsoft Purview | Insider Risk Management – Enhancements to the Data Security Triage Agent
MC1246005
Microsoft Purview
Mar 6, 2026
Endpoint Data Loss Prevention: Always-on diagnostics for Windows endpoints (Phase 2)
MC1246003
Microsoft Purview
Mar 6, 2026
Prevent/Fix: Microsoft Baseline Security Mode has automatically trigger Entra Conditional Access policy creation
MC1246002
Microsoft Entra
Mar 6, 2026
Always-on diagnostics for Endpoint DLP – Turned on by default
MC1246001Major Change
Microsoft Purview
Mar 6, 2026
Microsoft Teams Copilot without transcription becomes default for meetings - conversation history now persists
MC1139493
Microsoft Teams
Aug 22, 2025
Updated
Microsoft 365 Copilot: Graph APIs for agent and app management
MC1173195
Microsoft 365 Copilot Chat
Oct 15, 2025
Updated
Microsoft 365 Copilot: Introducing infinite scroll for chat history
MC1237701
Microsoft 365 Copilot Chat
Feb 23, 2026
Updated
Advanced Hunting: new actions to block attachments and top-level URL domains
MC1237728
Microsoft Defender XDR
Feb 23, 2026
Updated
Purview Communication Compliance: Temporary delays in processing due to planned infrastructure migration
MC1214183
Microsoft Purview
Jan 6, 2026
Updated
Microsoft 365 Copilot: Updated handling of entity inserts in the Copilot Chat input box
MC1230892
Microsoft 365 Copilot Chat
Feb 11, 2026
Updated
AI Admin RBAC updates
MC1245636
Microsoft Entra
Mar 6, 2026
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