Upgrading from EL Capitan to OS Catalina on iMAC 2007
I have a iMac Mid 2007 upgraded up to El Capitan.
I have upgraded the Memory to 4GB and it has over 80GB of storage out of 248GB to meet requirement.
Most of the Apps have the 64 bit option available as well.
Can't find the option to download and install the upgrade to Catalina. Any options ?
Thanks
iMac