Elastic Stack version 7.9.1 has been released, and users are strongly encouraged to upgrade to this latest version due to various bug fixes, most notably addressing a memory leak issue in Elasticsearch that occurs during document updates with a forced refresh and cluster state updates. This release is part of routine maintenance to enhance the overall performance and stability of Elastic Stack's components, including Elasticsearch, Kibana, Beats, and Logstash. For detailed information on all updates and fixes included in this version, users are advised to check the release notes for each individual product.