# Update Elasticsearch 1.0 -\> 6.4

**URL:** <https://discuss.elastic.co/t/update-elasticsearch-1-0-6-4/163673>\
**Category:** Elasticsearch\
**Created:** [January 10, 2019, 7:57am UTC](https://discuss.elastic.co/t/update-elasticsearch-1-0-6-4/163673 "2019-01-10T07:57:03Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Dmitrij](https://avatars.discourse-cdn.com/v4/letter/d/a698b9/32.png) [@Dmitrij](https://discuss.elastic.co/u/Dmitrij)\
**Post date:** [January 10, 2019, 7:57am UTC](https://discuss.elastic.co/t/update-elasticsearch-1-0-6-4/163673/1 "2019-01-10T07:57:03Z")

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Hello. I need advice - how to do it. I have an elasticsearch 1.0 on my test server. I want to upgrade to version 6.4. It is important to keep the server working. How should I do this with minimal losses? Update one by one to each major version or go straight to 6.4?

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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:** [January 10, 2019, 8:35am UTC](https://discuss.elastic.co/t/update-elasticsearch-1-0-6-4/163673/2 "2019-01-10T08:35:12Z")

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A test server? Running version 1?

Anyway, I'd try a reindex from remote. In 6.4 reindex what you have in cluster 1 basically.

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**Author:** ![Dmitrij](https://avatars.discourse-cdn.com/v4/letter/d/a698b9/32.png) [@Dmitrij](https://discuss.elastic.co/u/Dmitrij)\
**Post date:** [January 10, 2019, 9:03am UTC](https://discuss.elastic.co/t/update-elasticsearch-1-0-6-4/163673/3 "2019-01-10T09:03:05Z")

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I support the old project. I decided to try it on a test server before upgrading production.  
I understand correctly - do you suggest using this method?  
[https://www.elastic.co/guide/en/elasticsearch/reference/current/reindex-upgrade-remote.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/reindex-upgrade-remote.html)

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<div class="post-metadata">

**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:** [January 10, 2019, 10:14am UTC](https://discuss.elastic.co/t/update-elasticsearch-1-0-6-4/163673/4 "2019-01-10T10:14:17Z")

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Yes.

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<div class="post-metadata">

**Author:** ![Dmitrij](https://avatars.discourse-cdn.com/v4/letter/d/a698b9/32.png) [@Dmitrij](https://discuss.elastic.co/u/Dmitrij)\
**Post date:** [January 10, 2019, 10:24am UTC](https://discuss.elastic.co/t/update-elasticsearch-1-0-6-4/163673/5 "2019-01-10T10:24:54Z")

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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:** [February 7, 2019, 10:24am UTC](https://discuss.elastic.co/t/update-elasticsearch-1-0-6-4/163673/6 "2019-02-07T10:24:59Z")

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