New Bartok - Airplay 1 or 2?

Does the Bartok support Airplay 1 or the current version 2?

It supports AirPlay 1.

Thank you for the reply.
I am surprised that a newly released product does not confirm to the latest version of Airplay 2 which has been out for quite a while.
Is the Bartok hardware capable of supporting Airplay 2? If so are there plans for implementation?