CC 2017 added support for the MacBook Pro Touch Bar (late 2016 models and newer). This allowed users to place shortcuts for common actions (History, Select Subject, Brush Size) directly on the Touch Bar. While this hardware feature has since been discontinued by Apple, it was a major selling point for CC 2017 at the time.
Note: Users attempting to run CC 2017 on modern macOS versions (Catalina, Big Sur, and later) may encounter compatibility issues due to the deprecation of 32-bit support and altered security permissions. adobe photoshop cc 2017 mac