title: Code contracts build reference assembly actions
body: <p>I am using code contracts and trying to understand which of the build options shall I use and when. The contract assembly build options are defined in project properties</p>
  
  <p><strong>Code Contracts -> Contract Reference Assembly</strong>:</p>
  
  <ul>
  <li>None </li>
  <li>Build</li>
  <li>DoNotBuild</li>
  </ul>
  
  <p>Any thoughts or recommendations?</p>