title: What is the difference between ionic1, ionic2 and ionic3? Is ionic2 and ionic3 are same?
body: <p>I have created project with ionic cli 2.2.1. But when i enter into project directory and type "ionic info" it gives the following result.</p>
  
  <p>Your system information:</p>
  
  <p>Cordova CLI: 6.0.0 
  Ionic Framework Version: 3.2.1
  Ionic CLI Version: 2.2.3
  Ionic App Lib Version: 2.2.1
  Ionic App Scripts Version: 1.3.7
  ios-deploy version: Not installed
  ios-sim version: Not installed
  OS: Linux 4.4
  Node Version: v6.10.3
  Xcode version: Not installed</p>
  
  <p>my project structure is</p>
  
  <p>config.xml  ionic.config.json  package.json  resources  tsconfig.json  www
  hooks       node_modules       plugins       src        tslint.json</p>
  
  <p>Is this ionic2 project or ionic3 project.</p>