• fix previously created playlists disappearing each time the app is loaded (regression introduced in v0.5.3)
• enable the localization of the app (many UI strings are still unlocalized, though) (#592)
• improved the cover image handling in the files music player (#582)
• workaround for an authentication issue on Ampache Plugin for Rhythmbox (#590)
• launch the files music player only for those audio files supported in the current browser (#591)
• when creating collection.json, skip tracks with DB problems insted of failing the whole process (related to #588)