Version 6.8.23 of the Elastic Stack was released on January 13, 2022, featuring an update to Log4j version 2.17.1 for both Elasticsearch and Logstash. This patch release is recommended for users to upgrade to enhance security and performance. For detailed information on the changes included in this release, users are encouraged to consult the release notes specific to each product in the Elastic Stack, which comprises Elasticsearch, Kibana, Beats, and Logstash.