In JBoss AMQ 6, when and why was the native JMS bridge deprecated?

Issue

The native JMS bridge that was deprecated is described here:
https://access.redhat.com/documentation/en-us/red_hat_jboss_a-mq/6.3/html/using_networks_of_brokers/fmqnetworksjmstojms-native

For 6.3, the supported JMS bridge is using Camel and is described here:
https://access.redhat.com/documentation/en-us/red_hat_jboss_a-mq/6.3/html/using_networks_of_brokers/fmqnetworksjmstojms-camel

I just wondered if it's possible to tell me when the native JMS bridge in AMQ was deprecated, and for what reasons?