IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Upgrade Assistant API
editUpgrade Assistant API
editThis API is experimental and may be changed or removed completely in a future release. The underlying Upgrade Assistant concepts are stable, but the APIs for managing Upgrade Assistant are currently experimental.
The Upgrade Assistant API allows you to check the upgrade status of your Elasticsearch cluster and reindex indices that were created in the previous major version. The assistant helps you prepare for the next major version of Elasticsearch.