Carl Worth writes: > We don't have any concept of versioning yet, but it would obviously be > easy to have a new version document with an increasing integer.
Adding a magic document for this isn't ideal as you have to make sure it can't appear in search results, etc. This is just the sort of thing which Xapian's "user metadata" is there for. It's essentially a key/value store which is versioned along with the rest of the Xapian database. So to set it: database.set_metadata("version", "1"); And to read (and default if not set): string version = database.get_metadata("version"); if (version.empty()) version = "0"; Cheers, Olly