title: What is pa-version in jetspeed?
body: <p>What does the pa-version signify in jetspeed. Reading : <a href="http://portals.apache.org/jetspeed-2/deployguide/guide-registry.html" rel="nofollow">http://portals.apache.org/jetspeed-2/deployguide/guide-registry.html</a> the pa-version is mentioned :</p>
  
  <pre><code>   &lt;js:security-constraint-ref&gt;admin&lt;/js:security-constraint-ref&gt;
  
      &lt;dc:title&gt;Jetspeed-2 Administration Portlets&lt;/dc:title&gt;
      &lt;dc:title xml:lang="en"&gt;Jetspeed-2 Administration Portlets&lt;/dc:title&gt;
      &lt;dc:creator&gt;J2 Team&lt;/dc:creator&gt;
      &lt;js:metadata name="pa-version"&gt;2.2&lt;/js:metadata&gt;
  </code></pre>
  
  <p>When should I update this version number and what is it used for ?</p>
  
  <p>Update : I have seen projects where this number is set to 3.4 It seems these are custom projects using jetspeed portlet infrastructure. Should this not be also set to 2.2 ?</p>