I also can confirm both this bug and Robie's explanation for it. Additionally, I attached a copy of a potential replacement check plugin to Bug #1167621 along with some changes needed to update-notifier in order for that to work.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1031680 Title: check_apt always report 0 critical updates To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nagios-plugins/+bug/1031680/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs