Please find below the link to the latest version of Protean Software.
Version 7.4.5621 (FR4.5) – Please only install this software if you are already running a version of 7.3 or 7.4. If you are running 7.2 or earlier then please contact the Support team to discuss your upgrade options.
Release notes for this version can be found here.
Protean upgrade guide can be found here.