I'm not sure what churn you are talking about, unless you mean the Angular 1 - Angular 2+ split? ng update is ridiculously easy, and the automatic code rewriti

I'm not sure what churn you are talking about, unless you mean the Angular 1 - Angular 2+ split? ng update is ridiculously easy, and the automatic code rewriting is generally sensible and easy to follow. When there are breaking changes, Angular takes care of the modifications for you. Generally I've felt like those changes resulted in a better expressed codebase (eg RxJS syntax improved massively from 5 to 6, lazy loaded routes are expressed with arrow functions now, etc). I assumed the React community was also migrating versions with codemods, but maybe React does not introduce any breaking changes?