Filling a bug for upgrade request was the procedure documented on the Ubuntu-fr (French LoCoTeam) documentation site (http://doc.ubuntu- fr.org/tutoriel/demande_mise_a_jour_paquet).
There is several other upgrade request accepted as bug, see https://bugs.launchpad.net/ubuntu/+bugs?field.tag=upgrade -- Upgrade mercury to stable release, possibly latest. https://launchpad.net/bugs/94720 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
