# Could you advise me on determining which version of JDK is embedded with Elasticsearch 7.17.14 on RHEL7 - OpenJDK 20 or 21?

**URL:** <https://discuss.elastic.co/t/could-you-advise-me-on-determining-which-version-of-jdk-is-embedded-with-elasticsearch-7-17-14-on-rhel7-openjdk-20-or-21/347294>\
**Category:** Elasticsearch\
**Created:** [November 16, 2023, 9:17am UTC](https://discuss.elastic.co/t/could-you-advise-me-on-determining-which-version-of-jdk-is-embedded-with-elasticsearch-7-17-14-on-rhel7-openjdk-20-or-21/347294 "2023-11-16T09:17:42Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Domnic\_Raj\_D](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/domnic_raj_d/32/126492_2.png) [@Domnic\_Raj\_D](https://discuss.elastic.co/u/Domnic_Raj_D)\
**Post date:** [November 16, 2023, 9:17am UTC](https://discuss.elastic.co/t/could-you-advise-me-on-determining-which-version-of-jdk-is-embedded-with-elasticsearch-7-17-14-on-rhel7-openjdk-20-or-21/347294/1 "2023-11-16T09:17:42Z")

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I have collected all breaking changes and deprecations of the ELK stack (Elasticsearch, Kibana, Logstash, Beats) for 7.9 to 7.17.14. Is there anything I need to focus on before moving to the upgrade plan? If you don't mind, are you aware of which version of JDK is embedded with Elasticsearch 7.17.14 - OpenJDK 20 or 21 - RHEL7?

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**Author:** ![Domnic\_Raj\_D](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/domnic_raj_d/32/126492_2.png) [@Domnic\_Raj\_D](https://discuss.elastic.co/u/Domnic_Raj_D)\
**Post date:** [December 9, 2023, 7:17am UTC](https://discuss.elastic.co/t/could-you-advise-me-on-determining-which-version-of-jdk-is-embedded-with-elasticsearch-7-17-14-on-rhel7-openjdk-20-or-21/347294/2 "2023-12-09T07:17:16Z")

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are you aware of which version of JDK is embedded with Elasticsearch 7.17.15 - OpenJDK 20 or 21 - RHEL7?

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**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\
**Post date:** [December 9, 2023, 1:23pm UTC](https://discuss.elastic.co/t/could-you-advise-me-on-determining-which-version-of-jdk-is-embedded-with-elasticsearch-7-17-14-on-rhel7-openjdk-20-or-21/347294/3 "2023-12-09T13:23:37Z")

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You can check on release notes [here](https://www.elastic.co/guide/en/elasticsearch/reference/7.17/release-notes-7.17.15.html#upgrade-7.17.15).

According to it is OpenJDK 21.

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**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [December 9, 2023, 5:52pm UTC](https://discuss.elastic.co/t/could-you-advise-me-on-determining-which-version-of-jdk-is-embedded-with-elasticsearch-7-17-14-on-rhel7-openjdk-20-or-21/347294/4 "2023-12-09T17:52:37Z")

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That's right. It's defined in the source tree here:

> <https://github.com/elastic/elasticsearch/blob/v7.17.15/build-tools-internal/version.properties#L4-L5>

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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:** [January 6, 2024, 5:53pm UTC](https://discuss.elastic.co/t/could-you-advise-me-on-determining-which-version-of-jdk-is-embedded-with-elasticsearch-7-17-14-on-rhel7-openjdk-20-or-21/347294/5 "2024-01-06T17:53:24Z")

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