There was recently a post bemoaning the lack of "real roleplaying" in the current RPG community (specifically in the D&D Adventurers League), suggesting that, since some point in its history, more thought is now given to combat and dice and less focus toward acting in character.
I'm very new to roleplaying, and my only D&D experience is with 3.5e (when I was completely new) and 5e (the rules of which I have studied a fair amount).
How, if at all, have the different editions of D&D changed their focuses on dice-rolling and character-based roleplaying? I'm looking for answers in terms of the rules or advice given in the rulebooks or other official sources.