2019 iMac 27 5k doesn't upgrade to Sonoma
According to Apple, my 2019 iMac 27 5K with a Coffee Lake CPU should be
upgradeable to Sonoma, but it isn't.
Specs:
i5 3.0 ( Coffee Lake CPU ) 64RAM, 2TB SSD, 1.5TB available.
Current macOS Sequoia 15.7.1
Check for update results in = Your Mac is up to date
What am I missing...
iMac 27″