"The achievements of Ubuntu, the Ubuntu developers and the
Ubuntu community are easily measured by its success in fulfilling
its self-imposed mandate as a Linux that is easy to install, easy
to use, easy to update, and easy to manage.
"Ubuntu is based on a snapshot of the "unstable" tree of Debian,
which is merged into its current code release every six months
– and for most of its existence, Ubuntu could be described as
a subset of Debian Sid with the rough edges smoothed over, some
security features deprecated and some enhanced, the implementation
of proprietary blobs made easier, a bit of polish, a different
theme, and a lot less packages. "