title: Is there a difference between the 2008 and 2009 namespace for Deep Zoom Images?
body: <p>I noticed that Deep Zoom Composer writes DZIs with a namespace of</p>
  
  <pre><code>http://schemas.microsoft.com/deepzoom/2009
  </code></pre>
  
  <p>However the official documentation and the only available schema refer to</p>
  
  <pre><code>http://schemas.microsoft.com/deepzoom/2008
  </code></pre>
  
  <p>XML dictates I cannot treat them as equivalent, although they seem to be. So does anyone know if there is a difference and even better, can point to some documentation?</p>