# Using ES Java Rest Client version 6.3 with Elasticsearch version 6.2

**URL:** <https://discuss.elastic.co/t/using-es-java-rest-client-version-6-3-with-elasticsearch-version-6-2/141830>\
**Category:** Elasticsearch\
**Created:** [July 26, 2018, 6:05pm UTC](https://discuss.elastic.co/t/using-es-java-rest-client-version-6-3-with-elasticsearch-version-6-2/141830 "2018-07-26T18:05:15Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![BrobaFett](https://avatars.discourse-cdn.com/v4/letter/b/ecccb3/32.png) [@BrobaFett](https://discuss.elastic.co/u/BrobaFett)\
**Post date:** [July 26, 2018, 6:05pm UTC](https://discuss.elastic.co/t/using-es-java-rest-client-version-6-3-with-elasticsearch-version-6-2/141830/1 "2018-07-26T18:05:15Z")

</div>

Hi everyone,

I am trying to decide which Java client to use (its between Jest and the Elasticsearch Java Rest Client and I'd prefer to use the latter). I was comparing the supported APIs between 6.3 and 6.2 for the Elasticsearch Java Rest Client, and I noticed significant additions for 6.3.

Would there be any significant problem with using a 6.3 Java Rest Client for a 6.2 Elasticsearch Cluster?

I did take note of this page on compatibility: [https://www.elastic.co/guide/en/elasticsearch/client/java-rest/master/java-rest-high-compatibility.html](https://www.elastic.co/guide/en/elasticsearch/client/java-rest/master/java-rest-high-compatibility.html), but I wanted to ask here to confirm.

Thanks!

---

<div class="post-metadata">

**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:** [July 26, 2018, 7:00pm UTC](https://discuss.elastic.co/t/using-es-java-rest-client-version-6-3-with-elasticsearch-version-6-2/141830/2 "2018-07-26T19:00:40Z")

</div>

That should work well AFAIK.

---

<div class="post-metadata">

**Author:** ![BrobaFett](https://avatars.discourse-cdn.com/v4/letter/b/ecccb3/32.png) [@BrobaFett](https://discuss.elastic.co/u/BrobaFett)\
**Post date:** [July 26, 2018, 8:06pm UTC](https://discuss.elastic.co/t/using-es-java-rest-client-version-6-3-with-elasticsearch-version-6-2/141830/3 "2018-07-26T20:06:35Z")

</div>

Thanks for the quick reply. I'll give the 6.3 Java Client a try then.

To confirm, I wouldn't have to worry about any of 6.3's breaking changes affecting the Java Client? ([https://www.elastic.co/guide/en/elasticsearch/reference/current/breaking\_63\_api\_changes.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/breaking_63_api_changes.html)).

Thanks again. Appreciate the help.

---

<div class="post-metadata">

**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:** [July 26, 2018, 8:20pm UTC](https://discuss.elastic.co/t/using-es-java-rest-client-version-6-3-with-elasticsearch-version-6-2/141830/4 "2018-07-26T20:20:10Z")

</div>

Things might be deprecated but nothing should break IMO.

Give it a try.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 23, 2018, 8:20pm UTC](https://discuss.elastic.co/t/using-es-java-rest-client-version-6-3-with-elasticsearch-version-6-2/141830/5 "2018-08-23T20:20:11Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.