Use this tag for version specific questions about Elasticsearch 2.0 - the distributed, RESTful search and analytics engine. When using this tag also include the more generic [elasticsearch] tag where possible.
Elasticsearch 2.0 takes huge strides forward in terms of speed, security, scalability, and hardware efficiency. It introduces a host of new features, including powerful new aggregations to do more analytics, cluster state diffs to support even larger clusters, compatibility with 2.0 versions of Shield (security), Marvel (monitoring), Watcher (alerts), and more.
