Dupin v2.8.5 Available
You can get it from the web page here or fire up your current version and click Check For Update from its application menu.
This latest version of Dupin: fixes a problem when Re-Playlisting whereby playlists stored in Folder Playlists would either not be correctly re-created or not put back to their source Folder Playlist; fixes an issue Re-Playlisting when dead tracks are extant; fixes a bug encountering empty playlists when using the Remove Duplicate Entries From Playlist tool; other minor fixes and enhancements.
The unregistered demo version of Dupin will display up to 20 sets of duplicate tracks per session and permit a single "Purge" operation per launch. All other features are unencumbered. A registration code for Dupin is $15.00.
More information and download is here.
(Thanks to the Beta-Testing Irregulars!)