Microsoft Outlook's Copilot experience will be refreshed by September 2026 with a simplified, chat-centered design in both full-page and side pane views. Enhancements include improved navigation, chat layout, agent interaction, and Work IQ controls. No user or admin action is needed; administrators should update related documentation and inform users.
Applies to: Exchange Online
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).