in order to support both Apple Push Notifications and Google Cloud Messages, the Rpush::App and Rpush::Notification classes are now bases classes. Application specific classes are Rpush::Apns::App and Rpush::Apns::Notification for Apple Push Notifications and Rpush::Gcm::App and Rpush::Gcm::Notification for Google Cloud Messages.

• the key column is now known as name. This value is now unique within the scope of the application type (Apns / Gcm) and the environment (sandbox / production)

• The app column has been removed.
• There is an app_id column, and an app belongs_to association to Rpush::App.