Version 8.8.1 of the Elastic Stack was released, featuring a new Generative AI connector and a Security Assistant for Elastic Security users. This update is recommended over previous 8.8.x versions, as it addresses a specific bug affecting APM servers upgraded from version 8.7 to 8.8.0, which caused indexing failures for certain aggregated metrics data streams, potentially leading to missing data in the APM UI. For a comprehensive list of fixed issues and changes across products in this release, users are advised to consult the release notes.