How long does the new Testflight Beta review process usually take? iOS app reviews generally take around a week or so. Since Apple now requires that new TestFlight beta apps go through the beta review process as well before we can send it to external testers, I have been wondering how long  this process will take.

I have just submitted an app for a beta review. What is the timeframe that I should expect the approval (or denial, for that matter) of the beta app to take?
Yesterday at 6 pm I uploaded my beta build for review and it's status was waiting for review. This morning the status had changes to "In review" but now, 13h later it's still "In review". I will update this post if my app build had been approved.

EDIT: A day later in the morning it was approved. The total proces from uploading to being reviewed took 1 and a half days.