* agent: Added an error at agent startup time if both `-ui` and `-ui-dir` are configured together. [GH-2576]
* agent: Added an error at agent startup time if both `-ui` and `-ui-dir` are configured together. [GH-2576]
* agent: Added the datacenter of a node to the catalog, health, and query API endpoints which contain a Node structure. [GH-2713]
* agent: Added the datacenter of a node to the catalog, health, and query API endpoints which contain a Node structure. [GH-2713]
* agent: Added the `ca_path`, `tls_cipher_suites`, and `tls_prefer_server_cipher_suites` options to give more flexibility around configuring TLS. [GH-2963]
* agent: Added the `ca_path`, `tls_cipher_suites`, and `tls_prefer_server_cipher_suites` options to give more flexibility around configuring TLS. [GH-2963]
* agent: Reduced the timeouts for the `-dev` server mode so that the development server starts up almost instantly. [GH-2984]
* api: Add ACL replication status endpoint. [GH-2947]
* api: Add ACL replication status endpoint. [GH-2947]
* cli: Show Raft protocol version in `operator raft list-peers` command.[GH-2929]
* cli: Show Raft protocol version in `operator raft list-peers` command.[GH-2929]