Cursor 3.3: Parallel Plan Execution, PR Split, and Subagent Configuration Control

Cursor Blog·high signal

Cursor 3.3 (May 7) ships 'Build in Parallel' — click it and Cursor identifies independent parts of your plan and runs them simultaneously using async subagents, keeping dependent steps sequenced. Also adds a built-in PR split workflow that uses chat context to identify logical slices, and lets you configure subagent model selection from settings (e.g., model: opus to always use newest Opus). Includes a new PR review experience with inline threads and commit-by-commit view.