Apple Push Notification service must incorporate the new root certificate (AAACertificateServices) - APNS certificate update [duplicate]

Question

I got this mail from Apple.

"On March 29, 2021, token and certificate-based HTTP/2 connections to the Apple Push Notification service must incorporate the new root certificate (AAACertificateServices 5/12/2020) which replaces the old GeoTrust Global CA root certificate. To ensure a seamless transition and to avoid push notification delivery failures, verify that both the old and new root certificates for the HTTP/2 interface are included in the Trust Store of each of your notification servers before March 29.

Note that Apple Push Notification service SSL provider certificates issued to you by Apple do not need be to updated at this time."

I configured Firebase as provider server and using APNS authentication Key.

Steps followed:
1.I downloaded AAA certificate
2.Opened in Keychain
3.Tried to export it as p12, not able to do it since it doesn't have private key. 4.Therefore can't export this certificate to Firebase server.

I'm not sure what to do from my end. No documentation for this on apple site or any other site.

To be more specific should I do anything from my end or this should be taken care of by provider server like Firebase?

I'm wondering how come these instructions are not clearly mentioned by Apple?

Answer 1

Since you're using Firebase, there's nothing to be done on your side. Firebase will handle the job for you, since they are the ones who communicate with Apple. The same applies for any Push service. You should only be concerned if you personally send Push requests to Apple servers.

A more complete explanation about this can be found here.