title: Beta Release for a specific group of users on live site
body: <p>We have website/portal currently successfully running live. There was a module called Lets say "A". Which is already developed. </p>
  
  <p>Client asked to add some more tremendous amount of features and updates to that module. </p>
  
  <p>Now we need to give beta release of this new development to specific group of users and rest of the users will have same old application. </p>
  
  <p>Can anyone suggest a better and a kind of good standard approach to give beta releases on Live Site. </p>
  
  <p>Thanks</p>