Mailcleaner

In order to upgrade from a 2012.5 version, follow the traditional procedure:

aptitude update
aptitude safe-upgrade
cd /usr/mailcleaner
cvs -q update -dP
source lib/updates/update_binaries.sh
stabilizeBinaries
install/install_perl_libs.sh
install/install_sa.sh
/usr/mailcleaner/bin/check_db.pl --update
/etc/init.d/mailcleaner restart

You may have to reboot if you want to take advantage of the new kernel, but this isn't required for MailCleaner to continue working.