Apple Push Notification service now provides more authentication key options

Key now could be bound to specific bundle ID

Developers could use Developer Portal to set up two types of push notification authentication keys – team-scoped and topic-specific.

Team-scoped could be limited to development or production environments. Topic-specific keys could be associated with specific bundle ID to limit access. These keys provide greater control over notification being sent by teams within single organization.

Apple Developer: New features for APNs token authentication are now available