The WatchOS 6 beta 2 release notes states that a new key - apns-push-type -- is needed. It states: "To send a UserNotifications push to a watchOS device, a new
apns-push-type
key is now required as part of the APNs request header. Depending on the type of notification, this key can be set to alert
or background
and is supported across all Apple platforms." The question is whether the key is required for all apns push notifications or is this just if you have an independent Watch app and want to send a push notification to the Watch? I have not been able to find any documentation on this new key.