Yeah maybe this was it. Any significant changes must be reviewed again. But from the way it sounds the author was not actively developing the application, so I

Yeah maybe this was it. Any significant changes must be reviewed again. But from the way it sounds the author was not actively developing the application, so I am not sure how many changes went into each 90 day revision, perhaps Apple does not look kindly on resubmitting a build just for the sake of resetting the TestFlight 90 day activity counter. This might be seen as a way to try and avoid deployment and the final app review process. The 90 day counter is mentioned here https://testflight.apple.com/ https://testflight.apple.com/ Look for it under "Testing" From the way I have understood the 90 day counter before is that the app should be updated with new functionality/patches to be more beta tested, otherwise your app is obviously not being developed so no need for beta testing anymore