If the output wasn't there in the first place wouldn't it be possible to add new information in a backwards compatible way?
No, the format of the file does not allow that. Whether compatibility is a concern or not was not for me to decide. I assumed it is not a good idea to break tools this abruptly. I thought it would be better to add just a new way of getting dependencies (which has an extensible format, btw.), the old one can then be deprecated and removed sometime in the future.
