title: Updating dll used by sharepoint webpart
body: <p>We have webparts that use dll's which are in the GAC.</p>
  
  <p>In the *.webpart file the dll is refered to in the type name tag. Here it is spesified with the version number.</p>
  
  <p>Is it possible to get the web part to use a different version of the dll, without having to redeploy the webpart?</p>
  
  <p>We have many pages that use the webpart. If we were to redeploy the webpart would we need to update all pages that used the webpart?</p>