* agent: Fixed a bug that could cause invalid memberlist protocol versions to propagate throughout the cluster. [[GH-3217](https://github.com/hashicorp/consul/issues/3217)]
* server: Fixed a race condition during server initialization and leadership monitoring. [[GH-5322](https://github.com/hashicorp/consul/pull/5322)]
* agent: only enable TLS on gRPC if the HTTPS API port is enabled [[GH-5287](https://github.com/hashicorp/consul/issues/5287)]
FEATURES:
* prepared queries: Enable ServiceMeta filtering for prepared queries. [[GH-5291](https://github.com/hashicorp/consul/pull/5291)]