I'm on the 3.6 beta.
Getting this error at the top of all pages:
Warning: include(/var/www/www.site.com/public_html/wp-content/advanced-cache.php): failed to open stream: No such file or directory in /var/www/www.site.com/public_html/wp-settings.php on line 58 Warning: include(): Failed opening '/var/www/www.site.com/public_html/wp-content/advanced-cache.php' for inclusion (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/www.site.com/public_html/wp-settings.php on line 58 Notice: has_cap was called with an argument that is deprecated since version 2.0! Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead. in /var/www/www.site.com/public_html/wp-includes/functions.php on line 2950
And this is after disabling and deleting the plugin folder.