delta rpm's for RPM Fusion?

[Michael Schwendt]

On Thu, 14 May 2009 22:10:03 +0300, Jonathan wrote:

> FWIW, createrepo now creates the deltarpms in the Fedora infrastructure,
> rather than the presto-utils.
> 
> As for hardware resources, in Fedora we're not generating deltarpms for
> rpms larger than 100MB as [...]

What kind of repository inheritance is implemented by Fedora
Infrastructure for deltarpms?

For example, are F-11 deltarpms generated against F-10 Updates *and*
F-10? Or even a level deeper down to F-9 Updates plus F-9?