Copilot Cowork Under the Hood: Frontier, Work IQ, and the OneDrive Skills Model
On March 9, 2026, Microsoft introduced Copilot Cowork as the move from “Copilot can answer” to “Copilot can carry work forward.” On March 30, 2026, Microsoft said Cowork was available through the Frontier program. As of the Microsoft Learn and Support documentation updated in late March and early April 2026, Cowork is still explicitly documented as a preview/prerelease capability, gated through Frontier and still evolving. S1 S2 S3 S5 S8 That date sequence matters, because Cowork is not just another prompt box. It is Microsoft 365 Copilot’s first serious “plan to action” surface for long-running work: you describe an outcome, Cowork turns it into a plan, grounds it in your tenant context, loads skills, asks for approvals on sensitive steps, and keeps state in a visible task view while it works. S1 S2 S4 S8 S10 ...