# Any issue using 5.2.1 java transport client with Elasticsearch 5.1.1?

**URL:** https://discuss.elastic.co/t/any-issue-using-5-2-1-java-transport-client-with-elasticsearch-5-1-1/77019
**Category:** Elasticsearch
**Created:** [March 1, 2017, 4:15pm UTC](https://discuss.elastic.co/t/any-issue-using-5-2-1-java-transport-client-with-elasticsearch-5-1-1/77019 "2017-03-01T16:15:16Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![JonathanAaron](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jonathanaaron/32/24405_2.png) [@JonathanAaron](https://discuss.elastic.co/u/JonathanAaron)
#### Post date: [March 1, 2017, 4:15pm UTC](https://discuss.elastic.co/t/any-issue-using-5-2-1-java-transport-client-with-elasticsearch-5-1-1/77019/1 "2017-03-01T16:15:16Z")

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I know it's not a good idea to use mix elasticsearch versions, but I'm hoping there isn't any real issue doing this temporarily until I get all my environments running the same version.

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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: [March 29, 2017, 4:15pm UTC](https://discuss.elastic.co/t/any-issue-using-5-2-1-java-transport-client-with-elasticsearch-5-1-1/77019/2 "2017-03-29T16:15:27Z")

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