FCM Push notifications do not work on iOS 11

Question

I use Firebase as a backend. I also use FCM as one of the provided features from Firebase. FCM worked well in iOS 10, but after switching to iOS 11, push notifications stopp

Answer 1

Please update your FCM pod

pod ‘Firebase/Messaging’

to the latest version, which is 2.0.6

Installing FirebaseInstanceID (2.0.6)
Installing FirebaseMessaging (2.0.6)

It should work with iOS 11+ devices.