Larry, I‘m running Monterey which is older than Ventura on my 2014 mini and the Z8 is showing up. Make sure you have “install data files and security updates checked off “ as well as “check for updates” in the advanced section of “software updates” in the system preference section. Even though you can’t upgrade to Sonoma Apple has been sending out several security updates for older MacOS‘s . I just received on last week for Monterey.Hey Ralph, It’s not there. I have Ventura 13.6.4 which is up to date for my 2017 27” retina display unit. I tried to download Sonoma so I could load Z8/raw. Apple’s site said my computer is not compatible with Sonoma. All the other 2017 models are…. Go figure..