Add release notes for 8.2.3

Author: github-actions[bot]

docs/guide/release-notes.asciidoc

@@ -1,6 +1,7 @@
 [[release-notes]]
 == Release notes
 
+* <<rn-8-2-3>>
 * <<rn-8-2-2>>
 * <<rn-8-2-1>>
 * <<rn-8-2-0>>
@@ -9,6 +10,37 @@
 * <<rn-8-1-0>>
 * <<rn-8-0-0>>
 
+[discrete]
+[[rn-8-2-3]]
+=== 8.2.3 (2022-06-15)
+
+[discrete]
+==== Documents
+
+* Added the `routing` parameter to the `msearch` API.
+
+[discrete]
+==== CAT
+
+* Added the `cat.component_templates` API.
+
+[discrete]
+==== Ingest
+
+* Added the `if_version` parameter to the `ingest.put_pipeline` API.
+
+[discrete]
+==== Security
+
+* Changed the `name` parameter for the `security.create_service_token` API from required to optional.
+* Added the `refresh` parameter to the `security.create_service_token` API.
+* Changed the name of `access` parameter to the `labels` parameter in the `security.update_user_profile_data` API.
+
+[discrete]
+==== Shutdown
+
+* Added the `timeout` and `master_timeout` parameters to the `shutdown.get_node`, `shutdown.delete_node`, and `shutdown.put_node` APIs.
+* Added the `reason`, `type`, `allocation_delay`, and `target_node_name` parameters to the `shutdown.put_node` API.
 
 [discrete]
 [[rn-8-2-2]]