原文地址: https://www.elastic.co/guide/en/elasticsearch/reference/7.7/migration-api.html, 原文档版权归 www.elastic.co 所有
IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Migration APIsedit
The migration APIs simplify upgrading X-Pack indices from one version to another.