Frank Shearar wrote:
> git just stores them, but can't tell you much about
> the difference between two versions of some object.

That would be enough to improve Etoys development, for example. We
don't necessarily need to know what changed: there is really only one
feature I seek. We need to have the new object, and be able to
reproduce a configuration that depends on a previous object.
Naturally, it would be nice to know who changed it and when, and read
a commit message, but if we can't tell if its colour or shape or pitch
changed (without looking at it) and we need to store complete copies
of both in a repository, then so be it.

David