Copilot Notebooks will be available in Microsoft 365 Copilot Chat for Basic users starting mid-June 2026, providing a persistent AI-powered workspace to organize content. Notebook data is stored in user-owned SharePoint Embedded containers, counts toward SharePoint storage, and respects existing admin policies. No immediate action required.
Applies to: Microsoft 365 apps · Microsoft 365 Copilot Chat
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).