title: Dynamics CRM Online 2011 vs Dynamics CRM Online 2013 [API Changes]
body: <p>I am doing some research on building integrations for Microsoft Dynamics CRM Online.  The integration I am building will be for Dynamics CRM Online 2013, but I am curious if the 2013 version shares an API with the 2011 version.</p>
  
  <p>Does anyone know if an integration built for Dynamics CRM Online 2013 will be backwards compatible with Dynamics CRM Online 2011?  </p>
  
  <p>Any insight here would be appreciated.</p>
  
  <p>Also, if anyone has good resources for working with these API's using Ruby that would be awesome...</p>
  
  <p>Thanks!</p>