# Elasticsearch 6.3.2 rolling upgrade to 6.8.22, should the application elasticsearch-rest-high-level-client be upgraded to 6.8.22

**URL:** https://discuss.elastic.co/t/elasticsearch-6-3-2-rolling-upgrade-to-6-8-22-should-the-application-elasticsearch-rest-high-level-client-be-upgraded-to-6-8-22/306645
**Category:** Elasticsearch
**Tags:** language-clients
**Created:** [June 8, 2022, 7:36am UTC](https://discuss.elastic.co/t/elasticsearch-6-3-2-rolling-upgrade-to-6-8-22-should-the-application-elasticsearch-rest-high-level-client-be-upgraded-to-6-8-22/306645 "2022-06-08T07:36:22Z")
**Posts on this page:** 3
**Page:** 1

<div class="post-metadata">

### Author: ![qiuxb](https://avatars.discourse-cdn.com/v4/letter/q/48db29/32.png) [@qiuxb](https://discuss.elastic.co/u/qiuxb)
#### Post date: [June 8, 2022, 7:36am UTC](https://discuss.elastic.co/t/elasticsearch-6-3-2-rolling-upgrade-to-6-8-22-should-the-application-elasticsearch-rest-high-level-client-be-upgraded-to-6-8-22/306645/1 "2022-06-08T07:36:22Z")

</div>

Refer to an official article：

> **[Compatibility | Java REST Client \[6.8\] | Elastic](https://www.elastic.co/guide/en/elasticsearch/client/java-rest/6.8/java-rest-high-compatibility.html)**

The 6.0 client is able to communicate with any 6.x Elasticsearch node, while the 6.1 client is for sure able to communicate with 6.1, 6.2 and any later 6.x version, but there may be incompatibility issues when communicating with a previous Elasticsearch node version, for instance between 6.1 and 6.0, in case the 6.1 client supports new request body fields for some APIs that are not known by the 6.0 node(s).

So can it be considered that Java High Level REST Client  
6.3.2 Can access communication with Elasticsearch 6.8.22?

---

<div class="post-metadata">

### Author: ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [June 8, 2022, 11:55pm UTC](https://discuss.elastic.co/t/elasticsearch-6-3-2-rolling-upgrade-to-6-8-22-should-the-application-elasticsearch-rest-high-level-client-be-upgraded-to-6-8-22/306645/2 "2022-06-08T23:55:18Z")

</div>

> [@qiuxb](#):
>
> So can it be considered that Java High Level REST Client  
> 6.3.2 Can access communication with Elasticsearch 6.8.22?

Yes. But you won't have access to any of the newer features of Elasticsearch until you upgrade the client.

---

<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: [July 6, 2022, 11:56pm UTC](https://discuss.elastic.co/t/elasticsearch-6-3-2-rolling-upgrade-to-6-8-22-should-the-application-elasticsearch-rest-high-level-client-be-upgraded-to-6-8-22/306645/3 "2022-07-06T23:56:08Z")

</div>

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