Latest released version of Audiveris is 4.2 http://audiveris.kenai.com/docs/manual/releases.html
Regarding Debian packaging see http://kenai.com/projects/audiveris/forums/message-forum/topics/532683-Building-Audiveris-for-Debian -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
