WZPlayer not exist?

I could see a header for player WZPlayer.h. But there seem it doesn’t exist any more in the latest build (v1.0.3). Also, I couldn’t see any related build release notes about remove it. How can I find and use it?
I’m using iOS SDK.

Hi Hoc,

Our WZPlayer class is currently in beta and is not available in the public release at this time. Please check back in periodically in our iOS and Android Release Notes as to when it becomes available.

Michelle