If you started with React a few years ago, then React would have been brand spanking new, so change shouldn't have been too surprising then.

The question is, have things stabilized now? There's some evidence it has: Redux & Webpack have had the mindshare for almost 2 years now. But a lot of people now recommend mobx over redux, the redux plugin situation is still evolving, react-router seems to have finally got things right with version 4, et cetera.

That being said, I think the above sounds more pessimistic than it really is. For example, redux vs mobx is really two different use cases IMO.