SQLite.swift Value of type Connection has no member userVersion

I just upgraded to the branch of SQLite.swift for xCode 7 and Swift 2. Now along with a million other errors I am trying to correct I can't figure out what is the equivalent to the previous Database.userVersion? I know Database type has been replaced with the Connection type. But what do I check to know what version of schema changes a particular users has which I previous handled via the following code snippet:

private func migrate (){
    //dropTables()

    if db.userVersion == 0 {
        initializeDatabase()
        db.userVersion = 1
    }

    if db.userVersion == 1 {
        LogMsgSchema().createTable(con)
        db.userVersion = 2
    }

    if db.userVersion == 2 {
        CamerasSchema().updateTable(db, dbVersion: db.userVersion)
        PhotosSchema().updateTable(db, dbVersion: db.userVersion)
        db.userVersion = 3
    }

    if db.userVersion == 3 {
        CameraFeaturesSchema().createTable(db)
        db.userVersion = 4
    }
}