For smartphone version of desktop version? To be honest, I saw smartphone version a few weeks ago for the first and last time, so I can't compare it to the current version but I've gambled on Chips desktop version.
To be honest, there is a significant design change, I was a little shocked when I didn't see a navigation bar on the left side, it mostly became a landing page but to be honest, transition between old and new design is very smooth. I wish, there was a navigation on the main page vertically aligned or something like that for quick access. Overall, a new design is very game focused and user's attention is totally on it.