IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.
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Elastic Docs ›Elasticsearch Guide [8.0] ›Cross-cluster search, clients, and integrations

Reindex before upgrading

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Reindex before upgrading

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Before upgrading to Elasticsearch 8.0 and later, you must reindex any indices created in a 6.x version. We recommend using the Upgrade Assistant to guide you through this process.

For more information about upgrading, refer to Upgrading to Elastic 8.0.1.

For more information about reindexing, refer to Reindex.

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