anchor.diff:                  w.Status <- Configuration.Pickler.Pickle WorkerStatus.Starting
                   w.Version <- ReleaseInfo.localVersion.ToString(4)
                   w.MaxJobs <- match maxJobs with None -> nullableDefault | Some mj -> nullable mj
  +                w.ConfigurationId <- Configuration.Pickler.Pickle config
                   do! Table.insertOrReplace<WorkerRecord> config table w //Worker might restart but keep id.
                   current <- Some w
           }
  
positive.code:     member val ProcessId          = pid               with get, set
      member val ProcessName        = pname             with get, set
      member val InitializationTime = joined            with get, set
      member val ConfigurationHash  = configurationHash with get, set
      member val MaxJobs            = Nullable<int>()   with get, set
      member val ActiveJobs         = Nullable<int>()   with get, set
      member val ProcessorCount     = Environment.ProcessorCount with get, set
  
negative.code:       InitializationTime : DateTimeOffset
        /// Last worker's heartbeat time.
        HeartbeatTime      : DateTimeOffset
        /// Worker activated ConfigurationId.
        ConfigurationId    : ConfigurationId
        /// Worker's MaxConcurrentJobCount.
        MaxJobCount        : int
        /// Workers' processor count.
  