# ES upgrade 1.x to 5.x

**URL:** <https://discuss.elastic.co/t/es-upgrade-1-x-to-5-x/90777>\
**Category:** Elasticsearch\
**Created:** [June 26, 2017, 4:39am UTC](https://discuss.elastic.co/t/es-upgrade-1-x-to-5-x/90777 "2017-06-26T04:39:53Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Balamurali](https://avatars.discourse-cdn.com/v4/letter/b/90db22/32.png) [@Balamurali](https://discuss.elastic.co/u/Balamurali)\
**Post date:** [June 26, 2017, 4:39am UTC](https://discuss.elastic.co/t/es-upgrade-1-x-to-5-x/90777/1 "2017-06-26T04:39:54Z")

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Hi All,

Now we are using elasticsearch version 1.3.7, we are working on version up-gradation.

In our discussion, plan to check for upgrade 1.x to 5.x .

**if we done with direct data migration to 5.x from 1.x, what are possibility of complexities need to face on during and after this up-gradation.**

Please suggest us !!!

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [June 26, 2017, 9:08am UTC](https://discuss.elastic.co/t/es-upgrade-1-x-to-5-x/90777/2 "2017-06-26T09:08:12Z")

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You cannot do that, see [https://www.elastic.co/guide/en/elasticsearch/reference/5.4/setup-upgrade.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.4/setup-upgrade.html)

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**Author:** ![Balamurali](https://avatars.discourse-cdn.com/v4/letter/b/90db22/32.png) [@Balamurali](https://discuss.elastic.co/u/Balamurali)\
**Post date:** [June 26, 2017, 10:24am UTC](https://discuss.elastic.co/t/es-upgrade-1-x-to-5-x/90777/3 "2017-06-26T10:24:36Z")

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But we can do direct reindex 1.x to 5.x right ? [https://www.elastic.co/guide/en/elasticsearch/reference/5.4/reindex-upgrade.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.4/reindex-upgrade.html)

**what are possibility of complexities need to face on during and after this up-gradation.**

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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 26, 2017, 11:25am UTC](https://discuss.elastic.co/t/es-upgrade-1-x-to-5-x/90777/4 "2017-06-26T11:25:05Z")

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The mapping probably is the tricky part.

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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 24, 2017, 11:25am UTC](https://discuss.elastic.co/t/es-upgrade-1-x-to-5-x/90777/5 "2017-07-24T11:25:22Z")

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