Quoting Jonathan S. Shapiro (shap@eros-os.org):
>
> Delta compression is clearly very important. I also think that
> get-specific-delta() will prove important, but I think that adding it to the
> protocol probably doesn't need to be done in version 0.1.
The reason that get-delta isn't always good enough is that if you allow for local checkins, you might end up generating a delta against a version that the recipient doesn't have.
-josh