A few days ago I was moaning about how it wasn’t easy to keep a Debian machine updated compared to say Red Hat’s automagic up2date (paid subscription required) service.
Today I noticed a new package in a dapper dist-upgrade called unattended-upgrades. More information about unattended upgrades in the Ubuntu wiki.
Sweet! And under the GPL. Great. I’ve copied the initial version for online viewing of unattended upgrade source on my static site.