[orca-list] Evolution not up to date

["Robin Kipp" <webmaster robin-kipp de>]

Hi all,
I've got a problem: on the Orca page about Evolution that it is
accessible since version 2.6.1.
However, apt-cache policy evolution shows that I only have version 2.22.
I tried apt-get update and then apt-get install evolution, but it keeps
telling me that I have the newest version. So, what can I do? Why are
the unstable packages so outdated?
Robin