What are the differences of various versions of Angular?

There are different versions of Angular framework. Let's see the features of all the various versions,

1. Angular 1:

• Angular 1 (AngularJS) is the first angular framework released in the year 2010.
• AngularJS is not built for mobile devices.
• It is based on controllers with MVC architecture.

2. Angular 2:

• Angular 2 was released in the year 2016. Angular 2 is a complete rewrite of Angular1 version.
• The performance issues that Angular 1 version had has been addressed in Angular 2 version.
• Angular 2 is built from scratch for mobile devices unlike Angular 1 version.
• Angular 2 is components based.

3. Angular 3:

• The following are the different package versions in Angular 2:
  • @angular/core v2.3.0
  • @angular/compiler v2.3.0
  • @angular/http v2.3.0
  • @angular/router v3.3.0
• The router package is already versioned 3 so to avoid confusion switched to Angular 4 version and skipped 3 version.

4. Angular 4:

• The compiler generated code file size in AOT mode is very much reduced.
• With Angular 4 the production bundles size is reduced by hundreds of KB’s.
• Animation features are removed from angular/core and formed as a separate package.
• Supports Typescript 2.1 and 2.2.
• Angular Universal
• New HttpClient

5. Angular 5:

• Angular 5 makes angular faster. It improved the loading time and execution time.
• Shipped with new build optimizer.
• Supports Typescript 2.5.
• Service Worker

6. Angular 6:

• It is released in May 2018.
• Includes Angular Command Line Interface (CLI), Component Development KIT (CDK), Angular Material Package, Angular Elements.
• Service Worker bug fixes.
• i18n
• Experimental mode for Ivy.
• RxJS 6.0
• Tree Shaking

7. Angular 7:

• It is released in October 2018.
• TypeScript 3.1
• RxJS 6.3
• New Angular CLI
• CLI Prompts capability provide an ability to ask questions to the user before they run. It is like interactive dialog between the user and the CLI
• With the improved CLI Prompts capability, it helps developers to make the decision. New ng commands ask users for routing and CSS styles types(SCSS) and ng add @angular/material asks for themes and gestures or animations.

8. Angular 8:
   • It is released in May 2019.
   • TypeScript 3.4
9. Angular 9:
   • It is released in February 2020.
   • TypeScript 3.7
   • Ivy enabled by default
10. Angular 10:
    • It is released in June 2020.
    • TypeScript 3.9
    • TSlib 2.0