Updated CHANGELOG and release notes for 8.15.0

Author: ezimuel

CHANGELOG.md

@@ -1,4 +1,10 @@
-## release 8.14.0
+## Release 8.15.0
+
+Updated the APIs to Elasticsearch [8.15.0](https://www.elastic.co/guide/en/elasticsearch/reference/current/release-notes-8.15.0.html) and added the support of OpenTelemetry.
+Read the elastic-transport-php [README](https://github.com/elastic/elastic-transport-php?tab=readme-ov-file#opentelemetry)
+for more information about OpenTelemetry support.
+
+## Release 8.14.0
 
 This release introduces 3 new APIs and 10 EXPERIMENTAL APIs.
 

docs/release-notes.asciidoc

@@ -1,6 +1,7 @@
 [[release-notes]]
 == Release notes
 
+* <<rn-8-15-0>>
 * <<rn-8-14-0>>
 * <<rn-8-13-0>>
 * <<rn-8-12-0>>
@@ -46,6 +47,15 @@
 * <<rn-7-0-1>>
 * <<rn-7-0-0>>
 
+[discrete]
+[[rn-8-15-0]]
+=== 8.15.0
+
+* Updated the API endpoints to Elasticserach 8.15.0
+* Added the OpenTelemetry support, for more information
+  you can refer to the https://github.com/elastic/elastic-transport-php?tab=readme-ov-file#opentelemetry[elastic-transport-php]
+  documentation
+
 [discrete]
 [[rn-8-14-0]]
 === 8.14.0