Cursor 3 Ships Agents Window with Composer 2 on Kimi K2.5 Base: 39% CursorBench Jump, Design Mode, and Cloud-to-Local Handoff

Cursor·medium signal

Cursor 3 (April 2, 2026) replaces the Composer pane with a full-screen Agents Window for parallel agent execution across local, cloud, SSH, and worktree environments. Composer 2, built on Moonshot AI's Kimi K2.5 with 4x-scale RL, scores 61.3 vs 44.2 on CursorBench (39% improvement). Design Mode lets you annotate UI elements in-browser for precise visual feedback instead of describing changes in text. Worktree-based execution runs the same prompt across multiple models for side-by-side comparison. Cloud-to-local handoff lets you start a task in the cloud and pull results back seamlessly.