Add release notes for 8.0.3 (#7110) (#7111)

* Add release notes for 8.0.3

* Fix bad link

* Update link in install documentation

Co-authored-by: Steve Gordon <[email protected]>

Author: github-actions[bot]

docs/install.asciidoc

@@ -5,7 +5,7 @@ This page shows you how to install the .NET client for {es}.
 
 IMPORTANT: The v8 client for .NET does not have complete feature parity with 
 the v7 `NEST` client. It may not be suitable for for all applications until 
-additional endpoints and features are supported. We therefore recommend you thoroughly review our <<release-notes-8.0.0,release notes>> before attempting to migrate existing applications to the `Elastic.Clients.Elasticsearch` library. Until the new client supports all endpoints and features your application requires, 
+additional endpoints and features are supported. We therefore recommend you thoroughly review our <<release-notes,release notes>> before attempting to migrate existing applications to the `Elastic.Clients.Elasticsearch` library. Until the new client supports all endpoints and features your application requires, 
 you may continue to use the 7.17.x release of the client to communicate with v8 
 Elasticsearch servers using compatibility mode. Refer to the 
 https://www.elastic.co/guide/en/elasticsearch/client/net-api/7.17/connecting-to-elasticsearch-v8.html[Connecting to Elasticsearch v8.x using the v7.17.x client documentation] for guidance on configuring the 7.17.x client.

docs/release-notes/release-notes-8.0.3.asciidoc

@@ -0,0 +1,17 @@
+[[release-notes-8.0.3]]
+== Release notes v8.0.3
+
+[discrete]
+=== Bug fixes
+
+- Fix field sort serialization (issue: 
+https://github.com/elastic/elasticsearch-net/issues/7074[#7074])
+
+[discrete]
+=== Enhancements
+
+[discrete]
+==== Update to Elastic.Transport 0.4.5
+
+Upgrades the client to depend on the 0.4.5 release of Elastic.Transport which 
+includes automatic sending of https://www.elastic.co/guide/en/elasticsearch/reference/current/rest-api-compatibility.html#rest-api-compatibility[REST API compatibility] headers for Elasticsearch requests.

docs/release-notes/release-notes.asciidoc

@@ -6,11 +6,13 @@
 [discrete]
 == Version 8.x
 
-* <<release-notes-8.0.0,Release notes v8.0.0>>
-* <<release-notes-8.0.1,Release notes v8.0.1>>
+* <<release-notes-8.0.3,Release notes v8.0.3>>
 * <<release-notes-8.0.2,Release notes v8.0.2>>
+* <<release-notes-8.0.1,Release notes v8.0.1>>
+* <<release-notes-8.0.0,Release notes v8.0.0>>
 
 include::breaking-change-policy.asciidoc[]
-include::release-notes-8.0.0.asciidoc[]
+include::release-notes-8.0.3.asciidoc[]
+include::release-notes-8.0.2.asciidoc[]
 include::release-notes-8.0.1.asciidoc[]
-include::release-notes-8.0.2.asciidoc[]
+include::release-notes-8.0.0.asciidoc[]