in the software's title refers to a modified, unofficial version of the program. While Adobe itself only distributes installable versions that require a Creative Cloud subscription and administrative rights, community-made portable versions became popular for several reasons: No Installation:
: Improved "Color Adaptation" for Content-Aware Fill, Move, and Patch tools, allowing for more natural blending. Smart Object Improvements Adobe Photoshop CC 2014 V15.2.1.257 -Nov 2014- Portable
A selection tool that automatically selects the parts of an image that are in focus. in the software's title refers to a modified,
: These updates included smarter color adaptation, making the "Content-Aware Fill" and "Patch" tools more effective at blending replaced areas. and Patch tools