Final Cut Pro X 10.3: major update to Apple's ... - Movie Machine
: With a single click, the timeline could be rearranged into distinct "lanes" for different roles, mimicking a traditional track-based layout while maintaining dynamic responsiveness. Final Cut Pro X 10.3
: The update allowed the browser or the timeline to occupy a full second display, a long-requested feature for professional workflows. Final Cut Pro X 10
To keep pace with evolving camera technology, 10.3 integrated deep support for modern broadcast standards. Final Cut Pro X 10.3