M365 Archive

Microsoft 365 Message Center Archive

A fast, searchable archive of 6,220 Microsoft 365 Message Center announcements and Roadmap items. Track tenant-relevant changes, rollout dates, and service updates — with the full revision history of every message.

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All Microsoft 365 Message Center and Roadmap announcements

MessageActions
MC1484009
Microsoft Defender for Office 365: New email submissions data in Advanced Hunting
Sep 30, 2026|Microsoft Defender XDR
MC1437671
Microsoft Entra: Authenticated password change in My Sign-Ins
Jul 23, 2026|Microsoft Entra
MC1486284
Microsoft Purview | Data Loss Prevention: Administrative Units support for DLP policies for Microsoft Copilot
Oct 2, 2026|Microsoft Purview
MC1477999
Microsoft Teams: Removing Copilot from the chat list
Sep 23, 2026|Microsoft Teams
MC1492276
Dynamics 365 Contact Center - Improved feature discoverability within Contact Center Admin Center
Oct 9, 2026|Dynamics 365 Apps
MC1492166
Microsoft Outlook: New event duplication capability
Oct 8, 2026|Exchange Online
MC1492165
Microsoft PowerPoint for Windows: Improved slide contextual menu consistency
Oct 8, 2026|Microsoft 365 apps
MC1492164
Microsoft PowerPoint for Mac: Improved slide contextual menu consistency
Oct 8, 2026|Microsoft 365 apps
MC1492163
Microsoft API Hub: Zendesk OAuth tokens will require expiration and automatic refresh
Oct 8, 2026|Power Apps in Microsoft 365
MC1492161
Microsoft 365 Copilot in PowerPoint: 'Clarify my thinking' skill for desktop
Oct 8, 2026|Microsoft 365 apps
MC1492160
Microsoft 365 Copilot in PowerPoint: 'Clarify my thinking' skill for web
Oct 8, 2026|Microsoft 365 apps
MC1492159
Microsoft 365 Copilot in PowerPoint: 'Clarify my thinking' skill for Mac
Oct 8, 2026|Microsoft 365 apps
MC1492156
Microsoft PowerPoint for Windows: Smarter Keep Source Formatting slide pasting experience
Oct 8, 2026|Microsoft 365 apps
MC1492155
Microsoft PowerPoint for Mac: Smarter Keep Source Formatting slide pasting experience
Oct 8, 2026|Microsoft 365 apps
RM574115
Outlook: Upcoming visual improvements and a more consistent Outlook experience
Oct 8, 2026|Outlook
RM574107
Microsoft Teams: Chat for organizers and presenters in structured meetings and webinars on Teams Rooms on Android
Oct 8, 2026|Microsoft Teams
RM574106
SharePoint: AI input widget and content preview in Copilot
Oct 8, 2026|SharePoint
RM573709
Dynamics 365 Project Operations: Review financial dimensions when approving expenses on mobile
Oct 8, 2026|Dynamics 365 Project Operations
RM573707
Dynamics 365 Project Operations: Track mileage expenses using kilometers
Oct 8, 2026|Dynamics 365 Project Operations
RM573706
Microsoft Teams: External presenter support for event group chat
Oct 8, 2026|Microsoft Teams
RM573625
Microsoft Teams: Event Chat now available for Events optimized for a large audience in GCC
Oct 8, 2026|Microsoft Teams
RM573453
Microsoft Teams: Streaming switchboard for Network Device Interface (NDI) Sources
Oct 8, 2026|Microsoft Teams
RM573446
Microsoft Copilot (Microsoft 365): Copilot Chat in OneNote can create, edit, and refine content
Oct 8, 2026|OneNote
RM573274
Planner: Refreshed experience and new capabilities
Oct 8, 2026|Planner
RM573252
Dynamics 365 Project Operations: Cancel packing slips for stocked item requirements
Oct 8, 2026|Dynamics 365 Project Operations
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