Update Drupal Modules - skip a version? I've neglected a site for a while, and now I need to update some modules that are several versions out of date. Can I just jump to the newest version of the module or do I need to copy each version in order and run update.php each time?

Also, if several modules need updating, is it OK to copy all the files across and run update.php once, or do I need to copy each module individually and run the update each time?
As long as you're not skipping major Drupal versions (i.e. going from Drupal 5.x to Drupal 7.x), just jump to the new version(s).