Not able to install Catalina on iMac (Retina 5K, 27-inch, Late 2015) using Software Update and getting these errors
Not able to install Catalina on iMac (Retina 5K, 27-inch, Late 2015) using Software Update and getting these errors " your mac is up to date - macOS mojave 10.14.6" and "the requested version (Catalina 10.5.1) of macOS is not available"
iMac Line (2012 and Later)
