M365 Archive

Microsoft 365 Message Center Archive

A fast, searchable archive of 5,747 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
MC1440972
Microsoft Edge: Upgraded Copilot new tab page
Jul 27, 2026|Microsoft 365 suite
RM568370
Microsoft 365: Control access to Learning Activities and Teach
Jul 31, 2026|Microsoft 365
RM568369
Microsoft 365: Assign Different Content to Learning Groups in a Single Assignment
Jul 31, 2026|Microsoft 365
RM566322
OneNote: Multimodal capture in Copilot Notebooks (Windows)
Jun 18, 2026|OneNote
RM560823
Microsoft Edge: Work Search Banner for Google
Apr 21, 2026|Microsoft Edge
RM558435
Microsoft Edge: Security Update Alerts in the Edge management service
Mar 18, 2026|Microsoft Edge
RM557561
Microsoft Edge: Auto-open Copilot side pane for Outlook links
Feb 25, 2026|Microsoft Edge
RM554938
Microsoft Edge: Enhanced Autofill
Feb 11, 2026|Microsoft Edge
RM530578
Microsoft Edge: Tracking prevention when browsing InPrivate
Dec 3, 2025|Microsoft Edge
RM503772
Microsoft Copilot (Microsoft 365): [Copilot Extensibility] Users in DoD will be able to use custom engine agents
Oct 23, 2025|Microsoft Copilot (Microsoft 365)
RM503771
Microsoft Copilot (Microsoft 365): [Copilot Extensibility] Users in GCC-H will be able to use custom engine agents
Oct 17, 2025|Microsoft Copilot (Microsoft 365)
RM501111
Microsoft Copilot (Microsoft 365): [Copilot Extensibility] Users in GCC-M will able to use custom engine agents
Sep 24, 2025|Microsoft Copilot (Microsoft 365)
MC1435782Major
Microsoft Entra ID: Retirement of custom CSS positioning properties in custom branding
Jul 21, 2026|Microsoft Entra
MC1308855
Collect Diagnostics change to Get Diagnostics for Outlook Mobile and Mac
May 12, 2026|Microsoft 365 apps
MC1317197Major
Microsoft Teams: A refreshed in-meeting experience with simpler controls and a smarter share panel
May 20, 2026|Microsoft Teams
MC1440980MajorAction by Oct 1, 2026
Microsoft Teams: Update the Teams mobile app to maintain Calendar functionality
Jul 27, 2026|Microsoft Teams
MC1442612
Microsoft PowerPoint: Access your organization's brand templates in PowerPoint
Jul 29, 2026|Microsoft 365 apps
MC1326502
Shared and delegate mailbox scheduling for events
May 29, 2026|Microsoft Teams
MC1444064
Introduction of Macro Region Geography-Based Environment Provisioning
Jul 31, 2026|Dynamics 365 Apps
MC1443523
Microsoft 365 Copilot: Planner capabilities in Copilot chat
Jul 31, 2026|Planner
MC1443520
Microsoft Teams: Specify who has control of production tools in meetings and webinars
Jul 31, 2026|Microsoft Teams
MC1443518
Microsoft Teams: Expanded presenter visibility in Manage what attendees see
Jul 31, 2026|Microsoft Teams
MC1443517
Microsoft Teams: External presenters can manage event production controls
Jul 31, 2026|Microsoft Teams
MC1443514
Microsoft Planner: Planner Agent chat in basic plans
Jul 31, 2026|Planner
MC1443511
Microsoft Teams: Manage auto attendant shared voicemails in the Queues app
Jul 31, 2026|Microsoft Teams
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