Amazon Pinpoint now supports the apns-push-type header field for push notifications that you send using the Apple Push Notification service (APNs). Apple recently announced that this new header would be required for all push notifications sent to iOS 13 and WatchOS 6 devices. Beginning today, Amazon Pinpoint automatically adds this required header to all APNs messages that it sends. Amazon Pinpoint customers don’t have to perform any additional steps to include the header.
from Recent Announcements https://aws.amazon.com/about-aws/whats-new/2019/09/amazon-pinpoint-adds-support-for-the-apns-push-type-header-in-ap/