* **LAN Network Segments:** (Consul Enterprise) Added a new [Network Segments](https://www.consul.io/docs/guides/segments.html) capability which allows users to configure Consul to support segmented LAN topologies with multiple, distinct gossip pools. [GH-3431]
* **WAN Join for Cloud Providers:** Added WAN support for retry join for cloud proivders via go-discover, including Amazon AWS, Microsoft Azure, Google Cloud, and SoftLayer. This uses the same "provider" syntax supported for `-retry-join` via the `-retry-join-wan` configuration. [GH-3406]
* **WAN Join for Cloud Providers:** Added WAN support for retry join for cloud providers via go-discover, including Amazon AWS, Microsoft Azure, Google Cloud, and SoftLayer. This uses the same "provider" syntax supported for `-retry-join` via the `-retry-join-wan` configuration. [GH-3406]
* **RPC Rate Limiter:** Consul agents in client mode have a new [`limits`](https://www.consul.io/docs/agent/options.html#limits) configuration that enables a rate limit on RPC calls the agent makes to Consul servers. [GH-3140]