title: DocumentDB vs Cosmos DB - Are both same?
body: <p>I was using DocumentDB for the product and now I hear that there's no DocumentDB! There's this new Cosmos DB which Microsoft is building which is superset of DocumentDB. I'm really confused now. </p>
  
  <p>Is it only the name they changed or there are many more changes?
  Can someone shed a light on this?</p>