No specific info about version 4.0. Please visit the main page of dupeGuru on Mac Informer.
This app helps you find and remove duplicates within your iTunes library.
Create a bootable clone of your disk, with support of incremental backups.
iTunes Duplicates Cleaner helps you remove duplicates from iTunes library.
dupeGuru Music Edition is designed to detect duplicate audio files.
It offers an easy and convenient solution to find duplicate image files.