In AEM6.3, when viewing OSGi component configurations via the OSGi Console /system/console/configMgr, the applied configurations (the ones with checkboxes to the left of them) no longer show the Configuration Binding.
Screenshot showing missing Configuration Binding info:
This is working as designed, newer implementations of Declarative Services (as included in AEM6.3) do not bind configurations anymore when delivering them to a component. This is done to reduce resource consumption and avoid race conditions. In addition, configuration binding is a legacy feature from an OSGi specification point of view.
If you want to know whether your component has a configuration, you can go to the components tab, look at a component and see whether it has a PID.
Unbound configurations would no longer cause issues in AEM6.3 as they can no longer be bound.