title: Will adding another embedded document into my MongoDB user model affect the older data without those embedded documents?
body: <p>In the project I've been working on, I've added a new field - an embedded document.  Will this addition affect data prior to the change?  From what I've read this shouldn't affect prior data, and this is actually one of the benefits of using MongoDB.  Its just the previous data won't have that field.</p>
  
  <p>Thanks!</p>