Microsoft 365 Copilot Chat now supports additional file types like CAD, ZIP, and MP4 for search grounding, enhancing response relevance. The rollout begins early August 2025, with no user interface changes. Users must have eligible Microsoft 365 Copilot licenses; the feature is enabled by default.
Applies to: Microsoft 365 suite
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).