Plesk Migrator is a new migration tool introduced in Plesk 12.5.
Plesk Migrator have following improvements over "Plesk Migration & Transfer Manager:
Better error reporting.
Automatic IP mapping during the migration.
Pre-migration and post-migration checks.
Plesk Migrator supports migration from the following source platforms:
Plesk for Linux and Plesk for Windows: 8.6, 9.5.4, 10.4, 11.0, 11.5, 12.0, and 12.5.
Additional information about Plesk Migrator can be found in documentation.
Plesk Migrator can be installed using Plesk Autoinstaller and accessed using Tools & Settings or Extensions section.