Elasticsearch is poisonous ~(+﹏+)~

Please forgive me for taking the liberty that Elasticsearch is poisonous. Each time ElasticSearch is updated, some query APIs connection APIs ,and previous versions are incompatible, Old code cannot directly use the new elasticsearch.jar :sweat_smile:

Sure. Which client are you using?

The low level rest client should probably be more stable.

The old code uses elasticsearch 5.1.1 jar to connect the TCP server side. The new version elasticsearch 6.X is not compatible with the old version API call. I hope that API will retain the original way of calling.Thank you for the reply:sweat_smile:

With the low level client: yes.
With the high level client: no.

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