The host configuration value is now referenceable.
Kong Gateway 3.1.x
Added support for managing queues and connection retries when sending messages to the upstream with
the queue_size,flush_timeout, and retry_count configuration parameters.
Kong Gateway 2.7.x
Added support for the distribution metric type.
Allow service, consumer, and status tags to be customized through the configuration parameters service_name_tag, consumer_tag, and status_tag.
Kong Gateway 2.6.x
The host and port configuration options can now be configured through the environment variables KONG_DATADOG_AGENT_HOST and KONG_DATADOG_AGENT_PORT.
This lets you set different destinations for each Kong node, which makes multi-DC setups easier, and in Kubernetes, lets you run a Datadog agent as a DaemonSet.