On Sat, 2014-01-04 at 10:50 +0100, Mattia Verga wrote:

This is the first time I heard of DNF.
Looking at the page where differences between DNF and yum are
explained (http://akozumpl.github.io/dnf/cli_vs_yum.html) my question
is: do we really need DNF to replace yum?

Maybe I'm wrong, but it seems to me that DNF is no more than yum with
some different standard behavior and a couple of new command line
options. So why replace yum? If those changes are good why simply
don't change standard options in yum or add those new commands to yum?

Because yum's code is a mess. The primary point of the dnf rewrite is
not to alter the user interface, but to clean up the code itself.