Elasticsearch 5.6.10, based on Lucene 6.6.1, has been released as the latest stable version in the 5.x series and is available for deployment on Elastic Cloud. This release addresses a sensitive data disclosure flaw in the repository-azure plugin, where Azure credentials could be logged inadvertently if the plugin is set to TRACE level. Additionally, a bug affecting bulk requests could cause divergence between primaries and replicas under certain conditions when the master is under load, particularly if a document's mapping update times out or is not acknowledged. Users are encouraged to download and test Elasticsearch 5.6.10, and provide feedback via Twitter, forums, or GitHub.