Apple updated Final Cut Pro yesterday to 10.4.5 with improvements to performance and stability.
- Improved performance when generating waveforms for clips with no audio channels
- Improves stability when sending a project to Compressor using the keyboard shortcut Shift-Command-E
- Improves stability when pasting Arabic or Hebrew text into a title
- Improves stability when switching tabs in the Timeline Index
No big features came to the app, just refinement. This is the first update to the app since 10.4.4 came in November, and that one was the big update.