lots of pre-F10 packages in f10

[Bruno Wolff III]

On Sat, Mar 21, 2009 at 17:20:37 -0400,
  "D. Hugh Redelmeier" <hugh at mimosa.com> wrote:
> I just noticed that my Fedora 10 X86_64 installation DVD has a fair number 
> of packages labelled fc9 rather than fc10.  In fact some are
> fc<earlier>.

This is normal.

> Why would the packagers not rebuild all packages for a release?  Is
> there not a risk that some of these packages would be built against
> libraries that have changed?  I didn't think that the ABI for fc9 was
> supported by fc10.

Because it's a lot of work that normally isn't needed.

It does happen that all of the packages are being rebuilt for F11. There
were a few different reasons to do this, this time around.