Apple has provided now this certificate: Apple Push Notification service SSL (Sandbox & Production)
To be used in both development and production, The new APNS now supports HTTP2.
I'm using this Java library to send notifications: https://github.com/notnoop/java-apns
The problem is that I receive notifications in the development mode, But I can't receive any in the production mode.
Is the reason for that, Is that java-apns library does not support HTTP2?
Apple has deprecated the old HTTP and now is using HTTP2 protocol.
Please check this :answer
One Signal has updated it's library for this new change.