MC1192217: Secure Boot AMA: Ask Microsoft Anything on December 10
Join us December 10, 2025, at 8:00 AM PST for a
Microsoft 365 Message Center
An archive of Message Center updates - curated and preserved for when Microsoft changes things faster than you can say "rolling out." Find the latest and past Message Center posts right here. Updated daily at 1am (UK time).
MC1192178: New Windows Autopatch reports on CVEs
A new Windows Autopatch report empowers your organization to prioritize update deployment,
MC1192003: Microsoft 365 Copilot: GPT-5 Mode selector adds Auto, Instant, and Thinking modes
Microsoft 365 Copilot now defaults to GPT-5 with a mode selector offering Auto, Quick response, and Think deeper options. The rollout begins December 3, 2025, affecting all users with no admin changes needed. User mode choices persist across chats and the feature is enabled by default.
MC1191984: Updates available for Microsoft 365 Apps for Current Channel
We've released updates to the following update channel for Microsoft
MC1191944: Microsoft Excel: Insert Data from Image retires starting July 2026
The Insert Data from Image feature in Excel for Windows Semi-Annual Enterprise Channel will retire in July 2026 with Version 2602. It remains until September 2026 in Version 2508. An enhanced version with Copilot chat is being developed for other channels.
MC1191924: Microsoft Entra ID: Enhance protection of the authentication experience by blocking external script injection
Microsoft Entra ID will enhance authentication security by enforcing a Content Security Policy that blocks external script injection, allowing only trusted Microsoft scripts. This rollout begins mid-October 2026, affecting browser-based sign-ins on login.microsoftonline.com, with no impact on Ent...
MC1191921: New enrollment dashboard and data deletion controls in Teams Admin Center
A new voice and face enrollment dashboard in Teams Admin Center will provide admins visibility into AI-related user data and allow deletion of enrollment data. Rolling out January 2026, it enhances data management without changing default enrollment or policies. No action is needed to enable it.
MC1191920: Improved People Skills Admin configuration
Three new admin features for managing People Skills in Microsoft 365 include turning off user experiences, configuring settings via the Admin Center without PowerShell, and importing custom skills libraries from local devices. These enhance privacy, deployment flexibility, and ease of management,...
MC1191916: Message preview for channels, mentions, and reactions notifications
Microsoft Teams will add message previews to channel, mention, and reaction notifications on Windows, Mac, and web starting mid-December 2025. Users can disable previews via notification settings. No admin action or policy changes are needed; the feature activates with client updates.
MC1191915: Microsoft Viva: Copilot Dashboard - Broader access to M365 Copilot Chat insights
Microsoft 365 Copilot Chat Adoption Metrics will roll out by January 2026 to tenants with at least one Copilot license, enabling default analytics in the Copilot Dashboard. It provides insights on usage trends, adoption by group, retention, app-level breakdowns, and filtering, with admin controls...
MC1191616: Microsoft Secure Score: New recommendations for Microsoft Defender for Endpoint
New Microsoft Secure Score recommendations for Microsoft Defender for Endpoint will roll out from late November to mid-December 2025, adding actions like disabling Remote Registry Service on Windows. Available to Microsoft 365 E5 or Defender for Endpoint Plan 2 customers, admins should review and...
MC1191612: Interpreter agent in Teams calls
Microsoft Teams will expand the Interpreter agent to support real-time speech-to-speech interpretation in calls starting January 2026 for users with a Microsoft 365 Copilot license. Users can choose languages, adjust audio balance, and select voice options. It works best in structured conversatio...