To run Photoshop CC 2015 smoothly, your machine should meet these basic specs:

Though later spun into Adobe XD, CC 2015 included a limited "Design Space" mode with repeat grids, better character styles, and fast SVG export.

For the first time, users could add up to 10 instances of the same layer style (such as multiple Drop Shadows or Strokes) to a single layer without duplicating it.

: Allowed designers to create multiple layouts for different screen sizes within a single document.