Version 8.17.9 of the Elastic Stack has been released, bringing several performance and stability enhancements across its components. Notably, Logstash's persistent queue demonstrates a marked increase in throughput when its workers are up-to-date, thanks to the removal of lock contention in pipeline workers which prioritizes queue writers when insufficient events are available to fill batches. This update offers significant advantages for pipelines configured with larger batch sizes. Users are encouraged to upgrade to this version from 8.17.8 to benefit from these improvements, and detailed release notes are available for those seeking more comprehensive information on the changes.