Microsoft 365 Message Center

Windows 10 support ends October 14, 2025; no updates except for ESU-enrolled commercial customers. Intune will maintain core management and support migration to Windows 11. Use Intune reports to identify and upgrade devices or enroll in ESU for security updates. Final Windows 10 version 22H2 rema...

We have a minor service update planned for your Microsoft Dataverse environment

Microsoft Teams introduces Channel Agent, an AI-powered assistant for each channel that summarizes conversations, drafts status reports, assigns tasks via Planner, and answers questions. Available in public preview from mid-September 2025, it requires specific Microsoft 365 and Copilot licenses a...

Knowledge Agent (preview) is a new AI-powered SharePoint feature launching mid-September 2025, unifying AI tools into a role-adaptive interface for content optimization and Copilot support. It changes agent licensing, adds intelligent actions, and allows admins to control site participation witho...

Viva Engage communities now have agents in Public Preview (from Sept 18, 2025) that draft AI-generated answers using community content. SharePoint grounding will enhance accuracy by late Sept. Admins can enable, configure auto-posting or review, and add SharePoint sites. General Availability is e...

Teams Town Hall now matches Teams Live Events in features, offering enhanced controls and attendee experiences. Users are encouraged to transition to Town Hall, as it supports large-scale virtual events and will replace Live Events in the future. Enable IT policies to prepare for this change.

Microsoft 365 LTI, a unified integration for LMS platforms like Canvas and Moodle, will be generally available worldwide on September 15, 2025. It streamlines access to Microsoft 365 tools within LMS, replaces retired Teams LTI tools, and requires admin deployment and communication for a smooth t...

Starting October 2025, Microsoft Edge on Windows will default to an Adobe-powered PDF viewer for enterprise users, improving performance, accessibility, and features. Rollout completes by March 2026. Admins can manage this via policies, with opt-out available until June 2026. No action needed if ...

Support for Office 2016, Office 2019, Visio 2016/2019, Project 2016/2019, and related apps ends October 14, 2025. After this, no updates or support will be provided, risking security, compliance, and performance. Upgrading to Microsoft 365 Apps or Office LTSC 2024 is recommended.

Microsoft Teams now supports SlimCore-based optimization for Citrix VDI, offering better performance and new features. Admins must update Citrix Studio policies to whitelist virtual channels (MSTEAMS, MSTEAM1, MSTEAM2) and deploy the Citrix Plugin. WebRTC optimization will be deprecated in the fu...

Microsoft Defender for Identity will add new Secure Score improvement actions by late 2025 to better identify identity risks. These include identifying privileged service accounts, removing stale AD accounts, and disabling Entra Seamless SSO. No admin action is needed, but review configurations a...

Starting October 2025, Microsoft will automatically install the Microsoft 365 Copilot app on Windows devices with Microsoft 365 desktop apps, except in the EEA. The app appears in the Start menu, enabled by default, with admins able to opt out and prepare users accordingly.