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 # Java high-level REST client
 
+The OpenSearch Java high-level REST client will be deprecated starting with OpenSearch version 3.0.0 and will be removed in a future release. We recommend switching to the [Java client]({{site.url}}{{site.baseurl}}/clients/java/) instead.
+{: .warning}
+
 The OpenSearch Java high-level REST client lets you interact with your OpenSearch clusters and indices through Java methods and data structures rather than HTTP methods and JSON.
 
 ## Setup