Happy Friday!

What is the difference between the packages yum-autoupdate and yum-cron?

rpm -qi yum -cron says "Install this package if you want auto yum updates 
nightly via cron."

rpm -qi yum-autoupdate says "Automatically update your machine daily via 
yum."

The 2 pkgs seem to do the same thing (I just got bit by an automatic 
update when I knew yum-cron had not been installed). Apols for not having 
time to dig, but do experts know the few-sentence summary of the 
differences between these 2 pkgs?

Many many thanks!