Update CHANGELOG.md

CHANGELOG.md

@@ -10,6 +10,7 @@ IMPROVEMENTS:
 
 * agent: Retry Join for Amazon AWS, Microsoft Azure, Google Cloud, and (new) SoftLayer is now handled through the https://github.com/hashicorp/go-discover library. With this all `-retry-join-{ec2,azure,gce}-*` parameters have been deprecated in favor of a unified configuration. See [`-retry-join`](https://www.consul.io/docs/agent/options.html#_retry_join) for details. [GH-3282,GH-3351]
 * agent: Reports a more detailed error message if the LAN or WAN Serf instance fails to bind to an address. [GH-3312]
+* agent: Added NS records and corrected SOA records to allow Consul's DNS interface to work properly with zone delegation. [GH-1301]
 * cli: Added a `-child-exit-code` option to `consul lock` so that it propagates an error code of 2 if the child process exits with an error. [GH-947]
 * docs: Added a new [Geo Failover Guide](https://www.consul.io/docs/guides/geo-failover.html) showing how to use prepared queries to implement geo failover policies for services. [GH-3328]
 * docs: Added a new [Consul with Containers Guide](https://www.consul.io/docs/guides/consul-containers.html) showing critical aspects of operating a Consul cluster that's run inside containers. [GH-3347]