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Microsoft 365 Message Center

Comprehensive archive of Microsoft 365 service updates and feature announcements.

Showing 739 recently active messages. Use Ctrl K to search all 3038 archived updates.

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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
Retirement of the Semi-Annual Enterprise Channel option in the Office Deployment Service
MC1249427Major Change
Microsoft 365 apps
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
Outlook Mobile: Follow a meeting option
MC1248393
Exchange Online
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
Outlook: Support for recommended and automatically applied sensitivity labels in Outlook for iOS and Android
MC1247891
Exchange Online
Mar 9, 2026
Microsoft Viva Glint: AI-generated survey insights with Copilot highlights
MC1247887
Microsoft Viva
Mar 9, 2026
Microsoft Edge: Microsoft 365 Copilot will support summarization and contextual grounding
MC1187682
Microsoft 365 suite
Nov 18, 2025
Updated
Microsoft Purview: Data Loss Prevention - Security Store now available to discover DLP integrations
MC1247882
Microsoft Purview
Mar 9, 2026
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
Dynamics 365 Customer Service - Generate long-term forecasts up to three years
MC1226042
Dynamics 365 Apps
Feb 2, 2026
Updated
Microsoft Teams: Ad-hoc room reservation from Teams Rooms on Windows console
MC1245225
Microsoft Teams
Mar 5, 2026
Microsoft 365 Copilot: People agent availability update
MC1245224Major Change
Microsoft 365 Copilot Chat
Mar 5, 2026
Outlook: Share Word, Excel and PowerPoint local files via the new Outlook for Windows
MC1245222
Exchange Online
Mar 5, 2026
Microsoft Defender for iOS: End of support for iOS 16 devices
MC1245219Major Change
Microsoft Defender XDR
Mar 5, 2026
Targeted file and folder restores in Microsoft 365 Backup
MC1245216Major Change
Microsoft 365 suite
SharePoint Online+1 more
Mar 5, 2026
Microsoft Loop – Departed User Content Workflows for User-Owned Loop workspaces
MC929014
Microsoft 365 apps
Nov 8, 2024
Updated
Microsoft 365: Enrich profile cards with custom properties from third-party systems
MC1193692
Exchange Online
Dec 10, 2025
Updated
Introducing the new SharePoint experience
MC1240699
SharePoint Online
Feb 27, 2026
Updated
Power Apps - Enable push notifications in custom branded apps
MC1244930
Power Apps
Mar 5, 2026
Microsoft Purview | Insider Risk Management - Ability to preview content in Insider Risk Management Alerts
MC1244281
Microsoft Purview
Mar 4, 2026
Microsoft Teams Rooms: Front-of-room view control for Town Halls on Android
MC1182706
Microsoft Teams
Nov 4, 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
Dynamics 365 Customer Insights- Data - Select appropriate field values from a list when working with segments conditions
MC1218646
Dynamics 365 Apps
Jan 16, 2026
Updated
Microsoft Teams: Changes to Teams Events licensing
MC1243553
Microsoft Teams
Mar 4, 2026
Microsoft Teams: Channel Agent feature updates
MC1243546
Microsoft Teams
Mar 4, 2026
Updates available for Microsoft 365 Apps for Current Channel
MC1243523
Microsoft 365 apps
Mar 3, 2026
Enhancing Model Context Protocol (MCP) based agents with rich interactive UI widgets support
MC1227627
Microsoft 365 Copilot Chat
Feb 6, 2026
Updated
Microsoft 365 Copilot app: Unified plus (+) menu
MC1227086
Microsoft 365 Copilot Chat
Feb 5, 2026
Updated
Microsoft Purview Insider Risk Management: Pay-as-you-go model for generative AI apps
MC1242784
Microsoft 365 suite
Microsoft Purview
Mar 3, 2026
Set a custom name for the OneDrive sync folder
MC1242782
Microsoft OneDrive
Mar 3, 2026
Microsoft Teams Rooms on Android: License-based management updates for DM-synced devices
MC1242781
Microsoft Teams
Mar 3, 2026
Set expiration policies for "People in your organization" sharing links in SharePoint and OneDrive
MC1242772
SharePoint Online
Microsoft OneDrive
Mar 2, 2026
What’s new in the Microsoft Intune service update for February 2026
MC1242766
Microsoft Intune
Mar 2, 2026
Microsoft Outlook: Automatically display automapped calendars
MC906502
Microsoft 365 for the web
Microsoft 365 apps
Oct 7, 2024
Updated
New Feature: Account Manager in Outlook for Windows
MC1129718
Exchange Online
Microsoft 365 apps
Aug 5, 2025
Updated
Microsoft Purview: New Personalization settings
MC1030008
Microsoft Purview
Mar 12, 2025
Updated
SharePoint Framework domain isolated web parts retirement
MC792601Major Change
SharePoint Online
May 13, 2024
Updated
SharePoint Add-In retirement in Microsoft 365
MC693865Major Change
SharePoint Online
Nov 27, 2023
Updated
Azure ACS retirement in Microsoft 365
MC693863Major Change
SharePoint Online
Nov 27, 2023
Updated
SharePoint 2013 workflow retirement
MC542767Major Change
SharePoint Online
Microsoft OneDrive
Apr 17, 2023
Updated
Teams admin center: Troubleshoot meetings and calls with automatic issue identification and recommendations
MC1193405
Microsoft Teams
Dec 9, 2025
Updated
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