# Elasticsearch-rest-high-level-client-6.8.13 vs Elastic server 7.5.2

**URL:** <https://discuss.elastic.co/t/elasticsearch-rest-high-level-client-6-8-13-vs-elastic-server-7-5-2/274707>\
**Category:** Elasticsearch\
**Created:** [June 2, 2021, 7:40am UTC](https://discuss.elastic.co/t/elasticsearch-rest-high-level-client-6-8-13-vs-elastic-server-7-5-2/274707 "2021-06-02T07:40:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Prabaharan\_Kathiresa](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/prabaharan_kathiresa/32/49232_2.png) [@Prabaharan\_Kathiresa](https://discuss.elastic.co/u/Prabaharan_Kathiresa)\
**Post date:** [June 2, 2021, 7:40am UTC](https://discuss.elastic.co/t/elasticsearch-rest-high-level-client-6-8-13-vs-elastic-server-7-5-2/274707/1 "2021-06-02T07:40:18Z")

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Hi Team

We are trying to upgrade elastic server from 6.8.5 to 7.5.2. Now our micro services are using elasticsearch-rest-high-level-client version 6.8.13. We don't see any problems in communication between elastic server 7.5.2 and elasticsearch-rest-high-level-client-6.8.13.

In maven dependency tree I can see internally elasticsearch-rest-high-level-client-6.8.13 using elasticsearch-6.8.13 & elasticsearch-rest-client-6.8.13.

Question is, elasticsearch-rest-high-level-client-6.8.13 compatible with elastic server 7.5.2 ? Can I go ahead for production with elasticsearch-rest-high-level-client-6.8.13.

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [June 3, 2021, 10:33am UTC](https://discuss.elastic.co/t/elasticsearch-rest-high-level-client-6-8-13-vs-elastic-server-7-5-2/274707/2 "2021-06-03T10:33:16Z")

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You need to use the same version for the client and the server.  
This might change in the future as [a new Java Client](https://github.com/elastic/elasticsearch-java) is on its way.

> [@Prabaharan\_Kathiresa](#):
>
> Question is, elasticsearch-rest-high-level-client-6.8.13 compatible with elastic server 7.5.2 ?

No. It's not.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 1, 2021, 10:33am UTC](https://discuss.elastic.co/t/elasticsearch-rest-high-level-client-6-8-13-vs-elastic-server-7-5-2/274707/3 "2021-07-01T10:33:29Z")

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