Notification management in iOS 10

[nathany]

There is a new header apns-collapse-id to update or remove notifications. It is a string identifying the notification.

Swift also has a removeDeliveredNotifications API for UNUserNotificationCenter but it's not yet clear how to remotely remove notifications. It may be as simple as a DELETE action rather than POST, but I'm awaiting further information.

[nathany]

Local and Remote Notification Programming Guide was updated on 2016-09-20
https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/Introduction.html#//apple_ref/doc/uid/TP40008194