* 1.x is called "AngularJS" and has documentation at [docs.angularjs.org](https://docs.angularjs.org)
* 2.x (and onwards) is called "Angular", has [significant changes](https://angular.io/guide/ajs-quick-reference) from 1.x, and has documentation at [angular.io/docs](https://angular.io/docs/)
* CiviCRM (as of version 4.7.x) use AngularJS 1.x
* Within AngularJS 1.x there are [some changes between minor versions](https://docs.angularjs.org/guide/migration)
