title: What are the major changes from BO XI R3 and BO XI R4?
body: <p>Greetings!</p>
  
  <p>I am doing some research and i'm interested in what others may think of it:
  For whom have access to BO XI r4, what are in your opinion the major changes in the new releases?</p>
  
  <p>Is it worth upgrading ?</p>
  
  <p>Does it improve integration with existing SAP BW installations?</p>
  
  <p>Any insight will be very helpful!
  Thank you</p>
  
  <p>Fabio Prevedelli</p>