By settings, l mean changes in moves, stats, etc.
Like how Hypnosis' accuracy changes (60 to 70 or something?) through Generations.
I'm sorry if l'm being very vague, and it's difficult to give an example.
+EDIT: See the Hypnosis page; and how the accuracy is 70% instead of 60% in other games. What will happen in battles?
(This question only applies to D/P/Pt/HG/SS)
(+) Like, weren't there a few changes in moves, abilities, or stats from D/P/Pt to HG/SS, and when you battle on Wi-Fi, doesn't the game apply D/P/Pt changes instead?