&quot;The primary theme for this release was to improve the upgrade path to Angular 2.&quot;<p>Why? Will developers really attempt to upgrade 1.x apps to 2.x apps? It&#x27;s well known 2.x is considerably different from 1.x.<p>I would think any apps using 2.x will be either freshly written using 2.x or AngularJS developers will simply move to React or something else.<p>It&#x27;s bad enough to make 2.x so considerably different from 1.x but to change 1.x to be &quot;more compatible&quot; with 2.x just seams ignorant to me.