Unattended upgrades ------------------- Enables the `unattended update/upgrade feature `__ in aptitude. Enable it to have your system automatically download and install security updates automatically with a set interval. Settings ~~~~~~~~ - ``update_interval``: Days between running ``apt-get update``. ``required`` - ``download_interval``: Days between running ``apt-get upgrade --download-only`` ``required`` - ``upgrade_interval``: Days between installing any security upgrades. ``required``