how do I tell if my "late 2015" iMac OS can be upgraded?
I have an older iMac desktop running Monterey 12.7.6. but need to update it to 13 or higher in order to use Turbo Tax 2024 software. How do I know if I can update my iMac since the system tells me it's already up to date. I have a "Late 2025" iMac.
iMac 27″, macOS 12.7