Service updates and retirement notices for Microsoft 365 scheduled primarily for early 2026. Key security enhancements include mandatory multi-factor authentication for administrators and the transition from legacy protocols to modern authentication in SharePoint and OneDrive. Several older features and applications, such as Microsoft Lens, the Sway desktop app, and SharePoint 2013 workflows, are being phased out in favor of newer integrated solutions like Power Automate and OneDrive scanning. Additionally, Microsoft is introducing new collaborative tools, including a private chat for meeting organizers in Teams and a migration utility for transferring content from Slack. Administrators are encouraged to audit their current configurations and notify users of these shifts to ensure a seamless transition before the various deadlines. This comprehensive roadmap serves as a guide for IT professionals to manage infrastructure changes and feature enhancements across the Microsoft ecosystem.

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