Chat history in the Copilot navigation pane will be filtered by the current Copilot experience, with an option to view all chats. This change, rolling out April-May 2026, affects all Microsoft 365 users, requires no admin action, and does not impact data storage or compliance.
Applies to: Microsoft 365 Copilot Chat
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).