Elasticsearch announced that the core security features of the Elastic Stack are now free. This means that users can now encrypt network traffic, create and manage users, define roles that protect index and cluster level access, and fully secure Kibana with Spaces. These features are now free starting in versions 6.8.0 a 7.1.0. Along with this release Elasticearch made available Fundamentals of Securing Elasticsearch course available for free for a limited time (regularly $200).