Also waiting for a dealine here..
I think everyone is... Is this shipping with iOS 13? 13.1? Why is there no mention whatsoever of SIWA/Authentication Services updates in release notes/documentation:
There still seem to be outstanding questions from the team, like whether or not the email will be returned in subsequent tokens:
Are we just in the wrong place/using the wrong channels here? Why does there seem to be a complete vacuum with respect to hard information around *what* Apple is delivering and *when* ?