title: Best way to Migrate Angular JS framework version from 1.2.2 to latest 1.4.8?
body: <p>What should be the planning to Migrate Angular JS framework version from 1.2.2 to latest 1.4.8 ?  </p>
  
  <p>Application stack : ASP.NET, web, api, Angular JS</p>
  
  <ul>
  <li>Is it a good decision to migrate from 1.2.2 to 1.4.8 versions ? </li>
  <li>Can you please provide a checklist or important points I should think 
  before the migration ?</li>
  </ul>