Trying to upgrade to macOS 10.5 on iMac (21.5-inch, Mid 2011)
Trying to upgrade from version 10.13.6 to version 10.15 so I can install a new printer. Is this possible on this old iMac? Thx
iMac 21.5″, macOS 10.13
Assuming the new printer you want to install is AirPrint-compatible you do not need to upgrade macOS.
Most new printers are — or should be — AirPrint compatible. Newer operating systems such as Catalina (as you are contemplating) require AirPrint compatibility. Apple does not support anything else.
