Bump to 8.16.4 (#2631)

Author: JoshMock

docs/changelog.asciidoc

@@ -1,6 +1,22 @@
 [[changelog-client]]
 == Release notes
 
+[discrete]
+=== 8.16.4
+
+[discrete]
+==== Fixes
+
+[discrete]
+===== Improved support for Elasticsearch `v8.16`
+
+Updated TypeScript types based on fixes and improvements to the Elasticsearch specification.
+
+[discrete]
+===== Report correct transport connection type in telemetry
+
+The client's telemetry reporting mechanism was incorrectly reporting all traffic as using `HttpConnection` when the default is `UndiciConnection`. https://github.com/elastic/elasticsearch-js/issues/2324[#2324]
+
 [discrete]
 === 8.16.3
 

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@elastic/elasticsearch",
-  "version": "8.16.3",
-  "versionCanary": "8.16.3-canary.0",
+  "version": "8.16.4",
+  "versionCanary": "8.16.4-canary.0",
   "description": "The official Elasticsearch client for Node.js",
   "main": "./index.js",
   "types": "index.d.ts",