Push Notifications not received in Android mobile app

We use Google Firebase to push alert notifications to the Android mobile app. Firebase has announced the deprecation of their Legacy APIs, requiring migration to the HTTP v1 APIs, which we have implemented in version 12.8.270

Recently, Firebase announced that :

"FCM will begin gradually shutting down deprecated APIs starting from July 22, 2024. After this date, deprecated services will experience intermittent failures, with an increasing number of requests returning error responses."
Reference: https://firebase.google.com/support/faq#deprecated-api-shutdown

As a result, customers using earlier versions of OpManager are experiencing issues with push notifications not being properly sent to Android devices. This can be verified by checking the following error trace in the opmanager/mserr_0.txt log when Debug mode is enabled.

[09:07:13:489]|[09-18-2024]|[com.adventnet.opmanager.mserr]|[INFO]|[338]: Android Push notification response data: {"canonical_ids":0,"success":0,"failure":1,"results":[{"error":"DeprecatedApi"}],"multicast_id":xxxxx}|