M365 Copilot Agent Mode & Monetization Crisis

Copilot app merger confirmed with hard deadlines (Aug 18), feature retirements (Podcasts, Deep Research, Group Chat) and account separation. New security flaw patched (Varonis prompt injection in Copilot Personal). Microsoft internally uses Agent 365 to govern hundreds of thousands of agents, validating governance narrative. 30M paid seats, $100B Azure revenue. Excel COPILOT() retiring Sep 14; Copilot Pro ending Aug 1, 2026. Outlook Copilot writing partner rollout (mid-July to end of August 2026). Edge Copilot multi-tab/YouTube grounding GA. CoSnitch attack patched after eight-month delay. Optimize Copilot configuration guide published. Copilot in SharePoint rollout.