Listener (and good friend) Rally brings us our Dumb Question this week:
When MacOS High Sierra is installed, the photo and video formats are changed to HEIF and HEVF, respectively. I presume that means that the Photos library on the Mac is updated to this new format for all the pictures in the local library.
Is the iCloud Photos library also updated? If not, what happens when new HEIF photos are uploaded to the library?
I also have about 50 Photos libraries from our travels on my NAS device (i.e., they are not the system Photos library). How would they be managed under High Sierra when I use them in my videos?