# Can i use NEST version 2.X as a client if the Elastic Search is still 1.x version

**URL:** <https://discuss.elastic.co/t/can-i-use-nest-version-2-x-as-a-client-if-the-elastic-search-is-still-1-x-version/58285>\
**Category:** Elasticsearch\
**Created:** [August 17, 2016, 6:41pm UTC](https://discuss.elastic.co/t/can-i-use-nest-version-2-x-as-a-client-if-the-elastic-search-is-still-1-x-version/58285 "2016-08-17T18:41:30Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![aadil79](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/aadil79/32/11434_2.png) [@aadil79](https://discuss.elastic.co/u/aadil79)\
**Post date:** [August 17, 2016, 6:41pm UTC](https://discuss.elastic.co/t/can-i-use-nest-version-2-x-as-a-client-if-the-elastic-search-is-still-1-x-version/58285/1 "2016-08-17T18:41:30Z")

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Can i use NEST version 2.X as a client if the Elastic Search is still 1.X version ?

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**Author:** ![danielmitterdorfer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/danielmitterdorfer/32/110510_2.png) [@danielmitterdorfer](https://discuss.elastic.co/u/danielmitterdorfer)\
**Post date:** [August 24, 2016, 9:37am UTC](https://discuss.elastic.co/t/can-i-use-nest-version-2-x-as-a-client-if-the-elastic-search-is-still-1-x-version/58285/2 "2016-08-24T09:37:42Z")

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Hi @aadil79,

that's unlikely to work given that the query syntax changed with Elasticsearch 2.x. So although some types of requests may work you will not be able to take full advantage of it.

Daniel

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**Author:** ![forloop](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/forloop/32/9021_2.png) [@forloop](https://discuss.elastic.co/u/forloop)\
**Post date:** [August 24, 2016, 10:55am UTC](https://discuss.elastic.co/t/can-i-use-nest-version-2-x-as-a-client-if-the-elastic-search-is-still-1-x-version/58285/3 "2016-08-24T10:55:42Z")

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No, NEST 2.x is not supported as compatible with 1.x; [check out the compatibility matrix for more details.](https://github.com/elastic/elasticsearch-net#compatibility-matrix)

You may find that many requests are compatible, but there are known breaking changes that will result in thrown exceptions, for example, the way that errors are returned in 1.x will break NEST 2.x, so **not recommended or supported**.

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**Author:** ![aadil79](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/aadil79/32/11434_2.png) [@aadil79](https://discuss.elastic.co/u/aadil79)\
**Post date:** [August 24, 2016, 12:26pm UTC](https://discuss.elastic.co/t/can-i-use-nest-version-2-x-as-a-client-if-the-elastic-search-is-still-1-x-version/58285/4 "2016-08-24T12:26:45Z")

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Thanks

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**Author:** ![aadil79](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/aadil79/32/11434_2.png) [@aadil79](https://discuss.elastic.co/u/aadil79)\
**Post date:** [August 24, 2016, 12:27pm UTC](https://discuss.elastic.co/t/can-i-use-nest-version-2-x-as-a-client-if-the-elastic-search-is-still-1-x-version/58285/5 "2016-08-24T12:27:07Z")

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Thank you.

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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 5, 2017, 10:25pm UTC](https://discuss.elastic.co/t/can-i-use-nest-version-2-x-as-a-client-if-the-elastic-search-is-still-1-x-version/58285/6 "2017-07-05T22:25:34Z")

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