We update the withholding tax by states, Deed69.
As of now, the updated tax is unavailable in New Jersey. You might want to check what's included in the 21908 payroll update. It consists of the updated forms and payroll for the different states.
We will give you a piece of information once there's a new update release.
Payroll updates are delivered to all no matter what states you have set up for payroll. Everybody gets all the updated files. If the payroll version stayed at 21806 then the payroll update didn't work.
Try restarting your computer to make sure everything QB related is unloaded from memory. Then get the update again from the Employees menu. If you receive no errors, then deal with them, otherwise it probably worked.