[packagekit] Detecting DISTRO upgrades

[Richard Hughes]

Scenario:

User is using Fedora 7. Fedora 8 is released that day. The user is
prompted if they want to upgrade to the new version.

Questions:

* Do we deal with next-boot integration such like anaconda?
* Do we do pre-download or just install a new $(distro)-release file
* How do we know when the new distro is released? Metadata or RSS?

Ideas welcome.

Richard.