User-initiated insights with Copilot in classic Outlook for Windows allow users to highlight email text and prompt Copilot for contextual insights. Rolling out worldwide: Public Preview in May 2026, General Availability in October 2026. Feature is on by default for eligible users and integrates seamlessly without add-ins.
Applies to: Microsoft 365 Copilot Chat
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).