Release notes for 9.0.6 (#18028) (#18172)

Author: mergify[bot]

docs/release-notes/index.md

@@ -137,6 +137,16 @@ The Elasticsearch Input now provides [support](https://github.com/logstash-plugi
 
 * Call connection check after connect [#61](https://github.com/logstash-plugins/logstash-output-tcp/pull/61)
 
+## 9.0.6 [logstash-9.0.6-release-notes]
+
+### Features and enhancements [logstash-9.0.6-features-enhancements]
+
+* Logging improvement while handling exceptions in the pipeline, ensuring that chained exceptions propagate enough information to be actionable. [#17934](https://github.com/elastic/logstash/pull/17934)
+
+### Plugins [logstash-plugin-9.0.6-changes]
+
+No change to the plugins in this release.
+
 ## 9.0.5 [logstash-9.0.5-release-notes]
 
 ### Features and enhancements [logstash-9.0.5-features-enhancements]
@@ -309,4 +319,4 @@ Check out the [security advisory](https://discuss.elastic.co/c/announcements/sec
 
 **Tcp Output - 7.0.0**
 
-* Remove deprecated SSL settings [#58](https://github.com/logstash-plugins/logstash-output-tcp/pull/58)
+* Remove deprecated SSL settings [#58](https://github.com/logstash-plugins/logstash-output-tcp/pull/58)