GitHub Copilot App Adds Integrated Diff, Terminal, and Browser Panels for Seamless AI Code Review

GitHub has expanded its Copilot app to include three built‑in panels that let developers review, run, and preview AI‑generated code changes without leaving the interface. The new diff panel shows additions in green and deletions in red, allowing users to accept, comment, or request further edits. A terminal panel lets developers execute project commands directly, including launching development servers, while a browser panel opens the site for live testing. Together, the panels close the AI coding loop: review changes, run the code, test the UI, and then accept the modifications to create a pull request. The update removes the need to switch between an editor, terminal window, and web browser, giving developers a single, focused workspace for validating agent‑made changes.