# Why did Elastic release Elasticsearch Java API Client to replace the old High Level Client?

**URL:** <https://discuss.elastic.co/t/why-did-elastic-release-elasticsearch-java-api-client-to-replace-the-old-high-level-client/317749>\
**Category:** Elasticsearch\
**Created:** [October 30, 2022, 9:17am UTC](https://discuss.elastic.co/t/why-did-elastic-release-elasticsearch-java-api-client-to-replace-the-old-high-level-client/317749 "2022-10-30T09:17:02Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Michael\_Gattinger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/michael_gattinger/32/99690_2.png) [@Michael\_Gattinger](https://discuss.elastic.co/u/Michael_Gattinger)\
**Post date:** [October 30, 2022, 9:17am UTC](https://discuss.elastic.co/t/why-did-elastic-release-elasticsearch-java-api-client-to-replace-the-old-high-level-client/317749/1 "2022-10-30T09:17:02Z")

</div>

Did Elastic release the ESJAC to replace the old High Level Client because of the dispute with amazon about the Amazon Elasticsearch Service to make Elasticsearch in any matter incompatible with AES?

Thanks - Enomine

---

<div class="post-metadata">

**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [October 30, 2022, 9:34am UTC](https://discuss.elastic.co/t/why-did-elastic-release-elasticsearch-java-api-client-to-replace-the-old-high-level-client/317749/2 "2022-10-30T09:34:38Z")

</div>

I believe this was answered [here](https://discuss.elastic.co/t/why-had-elastic-released-a-complete-new-api-with-8-0/317292).

Amazon Elasticsearch Service has been renamed Amazon Opensearch Service and does no longer offer hosted Elasticsearch (apart from possibly some very old versions). Although Opensearch started as a clone of Elasticsearch 7.10.2, the two projects have been and are continuing to diverge, thereby requiring separate client libraries.

---

<div class="post-metadata">

**Author:** ![Michael\_Gattinger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/michael_gattinger/32/99690_2.png) [@Michael\_Gattinger](https://discuss.elastic.co/u/Michael_Gattinger)\
**Post date:** [October 30, 2022, 5:59pm UTC](https://discuss.elastic.co/t/why-did-elastic-release-elasticsearch-java-api-client-to-replace-the-old-high-level-client/317749/4 "2022-10-30T17:59:49Z")

</div>

I was so confused last days, i didn't even realized, that i have already asked this...

Its time to finish my masterthesis and get enough sleep 😄

Thanks - Enomine

---

<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:** [November 27, 2022, 6:00pm UTC](https://discuss.elastic.co/t/why-did-elastic-release-elasticsearch-java-api-client-to-replace-the-old-high-level-client/317749/5 "2022-11-27T18:00:47Z")

</div>

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