title: How to update SharePoint feature?
body: <p>I've created and installed a custom Document Library as a feature to SharePoint (WSS3) installation. The installation and activation went fine and the feature is operational.</p>
  
  <p>However, now I need to change the feature schema.xml file but I can't find a way to update the changes to SharePoint. I guess it's done via the stsadm.exe tool but can't find documentation on how to actually perform the update. Is there a simple to command to update the feature with FeatureId or name? Or do I need to deactivate and uninstall it before readding it to the site?</p>
  
  <p>Thanks.</p>