Microsoft Purview Information Protection will enable admins to preview email attachments flagged for sensitive data directly in Activity explorer for Exchange Online, improving incident investigation without downloading emails. The feature rolls out from December 2025 to January 2026, is enabled by default, and requires no action.
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.
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 for access and exclusions.
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 implement these to enhance security.
Microsoft Defender for Office 365 expands AIR auto-remediation to malicious similarity clusters, automating approval of remediation actions without manual intervention. Rolling out worldwide mid to late December 2025, this feature reduces SOC workload and speeds threat response. It’s off by default and can be enabled in the Defender portal.
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 conversations and requires policy configuration.
Starting January 2026, Teams Phone porting requires a one-time Know Your Customer (KYC) process via Teams Admin Center. Admins must submit business info and documents for validation before port-in requests. Existing numbers are unaffected. This applies globally and includes all tenants, with role-based access control via Entra ID.
Starting March 1, 2026, EWS access will be blocked for mailboxes with Exchange Online Kiosk, Microsoft 365/Office 365 F1, and F3 licenses, which currently lack EWS rights. To maintain EWS access, users must be assigned licenses with EWS rights, or EWS requests will return HTTP 403 errors.
Viva Engage community admins can soon update cover photos directly from the Teams iOS app, aligning with existing capabilities on other platforms. This feature, enabled by default without admin setup, will roll out worldwide from late December 2025 to early January 2026. No compliance issues identified.
I've been working with Microsoft Technologies over the last ten years, mainly focused on creating collaboration and productivity solutions that drive the adoption of Microsoft Modern Workplace.
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