# Rest API client

**URL:** https://discuss.elastic.co/t/rest-api-client/335323
**Category:** Elasticsearch
**Tags:** language-clients
**Created:** [June 6, 2023, 10:53am UTC](https://discuss.elastic.co/t/rest-api-client/335323 "2023-06-06T10:53:02Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![mhr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mhr/32/119834_2.png) [@mhr](https://discuss.elastic.co/u/mhr)
#### Post date: [June 6, 2023, 10:53am UTC](https://discuss.elastic.co/t/rest-api-client/335323/1 "2023-06-06T10:53:02Z")

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Do i need to upgrade REST API client version 7.2.1 also after ES up-gradation from version 7.8 to 7.17.

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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 6, 2023, 12:41pm UTC](https://discuss.elastic.co/t/rest-api-client/335323/2 "2023-06-06T12:41:42Z")

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I don't think it's mandatory but I'd definitely do it.  
Then I'd start moving to the new Java Rest Client as the HLClient is deprecated and will not work with 8.x.

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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 4, 2023, 12:42pm UTC](https://discuss.elastic.co/t/rest-api-client/335323/3 "2023-07-04T12:42:35Z")

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