photos on my mac does not show shared library
I have a macOS High Sierra running v 10.13.6
I recently signed up to iCloud for family sharing of our photos and that is working great on our iPhones. But I would like to see the photos in the Shared Library on the Mac.
At the moment the options to see the iCloud Shared Library I see in the linked support article are not showing for me....
Is my MAC too old ? Or can I update to later version of the OS to get these features on my MAC ?
How to use iCloud Shared Photo Library – Apple Support (AU)
Any help appreciated...
iMac