@Eiji Multiple repos might work. The prepare_version function used the repo field in the changeset. So if your handling that already then the version records should get put in the correct repo. The versions helper function takes a :repo option, so that should work.
None of the other options are currently supported. I might try and tackle create this weekend. Your welcome to add feature request issues to the package to track these items.
I need to think about old new diff. We could add a diff map to the version object. The other option would be to provide a helper function to generate this from the database records on request.
If I can find the time this weekend, I’ll try to add an option to save create records. I can see the value of this from an auditing perspective.
