The migration tool helps you to import data from other control panels (currently ISPConfig 2 and 3, Plesk 10 – 12.5 and Confixx 3) into a new ISPConfig 3 or ISPConfig 3.1 single- or multiserver installation. The tool can also be used to import the configuration and data from an ISPConfig 3 server into another ISPConfig 3 or ISPConfig 3.1 server, use cases are e.g. merging of several standalone servers into a new single or multiserver setup and also migrations where you want to move a complete ISPConfig installation from an old to a new server.
Users that own a Migration Tool license can download the new version through their SendOwl download link.
Read more about the ISPConfig Migration Tool here: http://www.ispconfig.org/add-ons/ispconfig-migration-tool/