They did, but quite honestly they should have just renamed the framework; Angular 1->2 is less of an upgrade and more of a completely new framework that happens

They did, but quite honestly they should have just renamed the framework; Angular 1->2 is less of an upgrade and more of a completely new framework that happens to share the same name. It was a mistake imo, but one they made because Angular is a household name amongst web devs. From what I understand, they've done a better job from Angular 2-5.