The Rebirth of Maple World! (big bang)

When I started, a little after the third anniversary, GMS already had 4th job and all the continents it has today, even NLC.
A lot has changed since then, of course. Many world tour areas added, Phantom Forest and Crimsonwood keep, Pirates and all the jobs after. But those were additions, not remakes of existing stuff (except for the Vic Island mob rearrangement that came with Monster Book, and a few skill changes with the "rebalancing" patch). And all those changes were gradual.
Here we are talking major restructuring of everything, all at once. Mobs, maps, skills, formulas, quests... Too much for this old dog to accept as still being the same game.

All the sprites are the same. All the skills are pretty much the same. All the character's playstyles remain in tact, save for ultimate spamming mages. Yeah, a lot of the game changes, but the core stays the same. If you really have a problem with this, find a private server running 1x exp GMS v.89.