For cluster and thread pools, you can now only send and receive serializable `JSON` data.
_This is not a limitation by poolifier but NodeJS._
-#### Public methods removed
+#### Public property replacements
-`numWorkers` method removed
-`nextWorker` method removed
+`numWorkers` property is now `numberOfWorkers`
+`nextWorker` property is now `nextWorkerIndex`
#### Internal (protected) properties and methods renaming