Hmm I can see it both ways. To me it seems like it's saying, "these were previous firmware update notes that are also included in this update" rather than completely new, but with how it's worded it could be either. I'm not familiar enough with the old notes to know if they repeated or not.
EDIT: Actually, I'm pretty sure these are old updates, given the last line is "
- Improves the operational stability of the camera when using Imaging Edge Desktop (Remote) or Imaging Edge Mobile
Which is no longer used with this update (It's replaced by Creators App).