9 beta 1 breaks Strava, Kinetic, Garmin Connect and Wahoo Fitness on iPhone 6+. Apps will launch but crash immediately. Appears to be Bluetooth-related e.g. Wahoo seems normal until you try to connect (via bluetooth) to a sensor, then immediate crash.
Fact that four different apps, from four competing companies, are all broken suggests (to me, anyway) that the problem is on Apple's side -- they've changed something that, before, was commonly used and accepted.