Angular 1.0, June 2012

https://github.com/angular/angular.js/releases?after=v1.0.4

...

And I actually prefer ng-1 to the transpiling mess that is ng-2, as well as preferring to use functional composition rather than pseudo-static classes for the controller logic.

https://github.com/roboprog/ang-prog-enh

50 years later and we still haven't learned.

It seems to me that many big companies are asking for Java + Angular skills these days; and that many new projects are build using that stack. This has the effect that it is still very worthwhile to learn Angular 1. I don't think it is going anywhere soon, plenty of companies are invested in it.