It would be great if you could utilize https://launchpad.net/~aria2-dev/ or omething like this to publish new releases of aria2.
Ubuntu's packaging of aria2 is really getting behind so filling up ppa with every new release might help to bring aria2 to wider audience and provide better feedback and testing reports.
Created PPA for 1.6.0: https://launchpad.net/~t-tujikawa/+archive/ppa