upgrading/downgrading - what does this mean?

[linux_learner]

smart upgrade --explain will tell you why.

On 9/12/06, Neal Becker <ndbecker2 at gmail.com> wrote:
> Channels have 12 new packages.
> Computing transaction...
>
> Upgrading packages (6):
>   bind-30:9.3.2-33.fc5 at x86_64
>   bind-libs-30:9.3.2-33.fc5 at x86_64
>   bind-utils-30:9.3.2-33.fc5 at x86_64
>   caching-nameserver-30:9.3.2-33.fc5 at x86_64
>   imlib-1:1.9.13-27 at i386
>   imlib-1:1.9.13-27 at x86_64
>
> Downgrading packages (1):
>   caching-nameserver-30:9.3.2-33.fc5 at x86_64
>
> Why is caching-nameserver upgrading and downgrading?
>
> Why is it doing anything at all?  I don't have caching-nameserver installed.
> rpm -q caching-nameserver
> package caching-nameserver is not installed
>