Elastic Stack 9.0.4 released

Version 9.0.4 of the Elastic Stack was released today. We recommend you upgrade to this latest version. We recommend 9.0.4 over the previous versions 9.0.3

The 9.0.4 Release contains various performance and stability improvements across the stack. Logstash's persistent queue now has significantly higher throughput when its workers are caught up. We eliminated lock contention in pipeline workers to ensure that queue writers have priority when there aren't yet enough events in the queue to fill batches. Pipelines tuned with larger batch sizes will see greater benefits.

For details of the issues that have been fixed and a full list of changes for each product in this version, please refer to the release notes.

https://www.elastic.co/blog/elastic-stack-9-0-4-released