title: Where to add a version to an XSD schema?
body: <p>The application I work on has XML output that conforms to an XSD schema. As features are added to the application, the XSD changes and I would like to note the version of the schema in the XSD file.</p>
  
  <p>Perhaps I'm missing something, but I haven't found a built-in way to mark the version of the schema. </p>
  
  <p>How do you do it?</p>