I upgraded from my iPhone 6 running iOS 10.x to an iPhone 8 running iOS 11.1 after work yesterday. This morning I noticed that I got no notifications from Rachio. When I go to the web based app, I see that the rain sensor activated last night around 9 pm. I didn't get that notification either. When I set up the new phone, I restored from a backup of my iPhone 6. I did get an email at 3:10 am that "A rain skip will be applied to your next watering schedule".