Microsoft 365 Message Center

Microsoft Teams group chat agents and bots will support Entra authentication starting November 3-6, 2025. Users without the Teams app or Entra consent receive a private prompt to install the app and grant permissions. This feature is enabled by default, requiring no admin action.

Microsoft Defender for Office 365 is enhancing quarantine for admins by listing messages by individual recipients, improving backend durability, and maintaining existing cmdlets with adjusted functionality. Rollout starts November 2025. No changes affect end users. Admins should update practices ...

We are announcing the ability to analyze action usage for agents in

Hotpatch updates, which are smaller than standard Windows updates, bring faster security

We are announcing the ability to view the performance of AI agents

We are announcing the ability to create offline profiles in the maker

Some organizations might have received incorrect Multiple Activation Keys (MAK) for Windows

On November 11, 2025, Windows 11, version 23H2 (Home and Pro editions)

PowerPoint will add Organization Images, allowing users to access company-approved logos and photos directly within the app starting late October 2025. Admins must configure a SharePoint Organization Assets Library to enable this default feature, ensuring brand compliance and simplifying image use.

Exchange ActiveSync Certificate-Based Authentication now supports TLS 1.3, routing traffic to new tenant-location-based endpoints. Most clients will redirect seamlessly, but organizations using Secure Email Gateways may need to update firewall settings. Rollout began globally, expanding to other ...

Microsoft Copilot in Outlook will expand to support all meeting types, including 1:1s, providing real-time contextual insights and chat-based preparation tools. This update, rolling out worldwide from mid-October to November 2025, is on by default and requires no admin changes. Users should be in...

Microsoft Defender for Cloud Apps will expand its dynamic threat detection model in November 2025, replacing legacy policies with more accurate, research-driven detections. This update improves threat detection accuracy and responsiveness, requires no admin action before rollout, and includes new...