Therefore, they cannot be installed and activated after upgrading to macOS Catalina. Older versions use 32-bit licensing components and installers. Incompatible versions (version 19.x and earlier) will not display in the ‘Older Versions’ list within the Creative Cloud desktop app. They are not supported in any way for use on macOS Catalina.Īdobe does not recommend that customers using old versions of Photoshop upgrade to macOS Catalina. No, legacy/perpetual versions of Photoshop were not designed or tested to work on macOS 10.15 (Catalina).