From story time meeting on 03-17:
* Different use cases: API, dump-files, Special:EntityData.
** Special:EntityData and API: we could put the version info in the same place as we have the revision info (revision ID)
** dump-files: skip that for now
** there should be a separate task for having that info in the database (we will not do it for now)
Idea by @daniel and @adrianheine:
having a header for meta-info that contains version(s) info, licence info, etc.. and put it into a separate file for dumps
@daniel can you describe this idea a bit more in detail?