FYI http://askubuntu.com/questions/3167/what-is-difference-between-the-options-autoclean-autoremove-and-clean http://askubuntu.com/questions/3167/what-is-diffe

FYI http://askubuntu.com/questions/3167/what-is-difference-between-the-options-autoclean-autoremove-and-clean http://askubuntu.com/questions/3167/what-is-difference-betwe... It cleans out unnecessary packages. All the update does is download the latest available updates so it should not be prompting. My experience is that only upgrade/dist-upgrade will prompt. I've got a VM running ubuntu 16.04-beta and it seems to be fine.