On December 6, 2024, I received the following email. Does this mean that there is something that needs to be done on the app side or on the Firebase side? Currently, in our project, we are using Firebase to set up push notifications. If anyone knows how to deal with this or has taken any action, could you tell me what specific steps you took? Action Required: Apple Push Notification Service Server Certificate Update As we announced in October, the Certification Authority (CA) for Apple Push Notification service (APNs) is changing. APNs will update the server certificates in sandbox on January 20, 2025, and in production on February 24, 2025. To continue using APNs without interruption, you’ll need to update your application’s Trust Store to include the new server certificate: SHA-2 Root : USERTrust RSA Certification Authority certificate. To ensure a smooth transition and avoid push notification delivery failures, please make sure that both old and new server certificates are included in the Trust Store before the cut-off date for each of your application servers that connect to sandbox and production. At this time, you don’t need to update the APNs SSL provider certificates issued to you by Apple.