* <<logstash-8-15-1,Logstash 8.15.1>>

[[logstash-8-15-1]]

=== Logstash 8.15.1 Release Notes

[[notable-8.15.1]]

==== Performance improvements and notable issues fixed

* Fixed issue where `${VAR}` incorrectly treated array as a string https://github.com/elastic/logstash/pull/16375[#16375]

[[core-8.15.1]]

==== Other changes to Logstash core

* Emit warning message for java version less than 17. Starting from Logstash 9.0, the minimum required version of Java will be Java 17 https://github.com/elastic/logstash/pull/16370[#16370]

[[plugins-8.15.1]]

==== Plugin releases

*Elasticsearch Input - 4.20.4*

* Fixed issue where the `index` parameter was being ignored when using `response_type => aggregations` https://github.com/logstash-plugins/logstash-input-elasticsearch/pull/209[#209]

*Redis Input - 3.7.1*

* [Doc] Added `threads` option https://github.com/logstash-plugins/logstash-input-redis/pull/95[#95]

*Aws Integration - 7.1.8*

* Added support to all storage classes for s3 output https://github.com/logstash-plugins/logstash-integration-aws/pull/49[#49]

*Kafka Integration - 11.5.1*

* [Doc] Added only headers with UTF-8 encoded values are supported in `decorate_events` https://github.com/logstash-plugins/logstash-integration-kafka/pull/174[#174]

Plugins align with release 7.14.0