I only upgraded to 3.1.4 the other day and had to do that manually now cannot upgrade to 3.2 either. At least this time it has not crashed the site however this is the message:
Fatal error: Call to undefined function update_core() in /home/theoldba/public_html/wordpress/wp-admin/includes/class-wp-upgrader.php on line 906
Looks like another manual upgrade - this is a timely exercise and not what I expected 2 days later!!!