A: Never. Updating a cracked version will immediately brick the activation. You would need to uninstall and download a new crack.
: macOS 10.11 (El Capitan), 10.12 (Sierra), or 10.13 (High Sierra). Processor : Multicore Intel processor with 64-bit support.
Downloading Adobe Photoshop CC 2018 from third-party sites like AllMacWorlds carries significant security risks, as these "free" versions are typically cracked software that can contain malware. Users report mixed experiences with such sites, and these versions lack official support, updates, and safety. For a safe and legal installation, Adobe suggests using the Creative Cloud desktop app to access older versions or sourcing original installers. You can find community discussions on this topic on Install older version of Adobe product | Community