Auto update

Is there some sort of auto-update feature in Linux?
Like some program I can run that checks my currently installed package
versions versus what is available and informs me if a newer version exists?
Or should I just memorize the version of every package I have installed?

How do others handle this?

See ya!
James B. Parker


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/