You can now take advantage of updated security options when creating new token authentication keys for the Apple Push Notification Service (APNs).
Team-scoped keys enables you to restrict your token authentication keys to either development or production environments, providing an additional layer of security and ensuring that keys are only used in their intended environments.
Subject-specific keys provides more granular control by enabling each key to be associated with a specific bundle ID, allowing for more streamlined and organized key management. This is especially beneficial for large organizations that manage multiple apps across multiple teams.
Your existing keys will continue to work for all push themes and environments. At this time, you do not need to update your keys unless you want to take advantage of the new capabilities.
For detailed instructions on how to secure your communications with APNs, read Establishing a token-based connection with APNs.