what are the differences between angular2 and angular4

Question

can you please let me know the differences between angular2 and angular4. We know that there is a drastic change between angular1 and angular2. Is it repeated again for angular4.

Solution

There is nothing path breaking between angular 2 and angular 4 like angular 1 and angular 2. They are just doing it to maintain SEMVER(Sementic Versioning). Angular 2 is stable now so it would be better to prefer angular 2 instead of angular 4.

Angular 2 was a complete rewrite of AngularJS 1.x with many new concepts. Angular 4 however is the next version of Angular 2. The underlying concepts are still the same and if you have already learned Angular 2 you’re well prepared to switch to Angular 4 now.

The reason it’s Angular 4 and not Angular 3 is that the Angular Router package has already been in version 3 before. The Angular team would like to avoid confusion and decided to skip version 3 for Angular and continue with Version 4.

Update from comments

• Also, in Angular 4, animation functions are imported from @angular/animations instead of @angular/core

For more detail i have published this article read here

• Why Angular4 over Angular2 ?