Why Version Confusion Is So Common
Because the game kept its name, its artwork family and its interface layout across releases, while changing the numbers underneath. A player following a two-year-old video sees a screen that matches what is in front of them and reasonably assumes the advice matches too. The lane table is where the divergence shows, and almost nobody opens it.
Branded skins add another layer, since an operator's version may be based on either release with a different logo on top. Checking the mode selector and the lane table takes ten seconds and settles which board you are actually on.
What To Do With an Old Guide
Keep the parts about bankroll, turnover and stopping rules, which are release-independent. Discard anything naming a specific multiplier as a target, because those recommendations are tied to a lane structure that may not be the one on your screen.
How the modes differ is covered on the difficulty modes page, and every guide is listed on the home page.