# ES upgrade from 1.7.1 to 2.4

**URL:** <https://discuss.elastic.co/t/es-upgrade-from-1-7-1-to-2-4/91331>\
**Category:** Elasticsearch\
**Created:** [June 29, 2017, 6:22pm UTC](https://discuss.elastic.co/t/es-upgrade-from-1-7-1-to-2-4/91331 "2017-06-29T18:22:07Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![h41t3r](https://avatars.discourse-cdn.com/v4/letter/h/b5a626/32.png) [@h41t3r](https://discuss.elastic.co/u/h41t3r)\
**Post date:** [June 29, 2017, 6:22pm UTC](https://discuss.elastic.co/t/es-upgrade-from-1-7-1-to-2-4/91331/1 "2017-06-29T18:22:07Z")

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Hi, I'm looking to upgrade from 1.7.1 to 2.4 and then eventually to 5.X. Since 2.4 now supports dot characters in it's indices, can I assume that I can upgrade directly and keep my indices intact?

I've searched the forum and can see people have done a 1.7.X to 2.4, but not sure if they had ever used dot's in their indices.

Thanks

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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 29, 2017, 10:36pm UTC](https://discuss.elastic.co/t/es-upgrade-from-1-7-1-to-2-4/91331/2 "2017-06-29T22:36:19Z")

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[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) should guide you.

But yes, you can go from 1.7 to 2.4.

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [June 30, 2017, 5:21am UTC](https://discuss.elastic.co/t/es-upgrade-from-1-7-1-to-2-4/91331/3 "2017-06-30T05:21:17Z")

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You will however need to reindex data before moving to 5.x as indices created in 1.x can not be read by 5.x. You may therefore be better off reindexing into a new 5.x cluster directly.

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**Author:** ![h41t3r](https://avatars.discourse-cdn.com/v4/letter/h/b5a626/32.png) [@h41t3r](https://discuss.elastic.co/u/h41t3r)\
**Post date:** [July 5, 2017, 10:49am UTC](https://discuss.elastic.co/t/es-upgrade-from-1-7-1-to-2-4/91331/4 "2017-07-05T10:49:55Z")

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Thanks all

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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:** [August 2, 2017, 10:50am UTC](https://discuss.elastic.co/t/es-upgrade-from-1-7-1-to-2-4/91331/5 "2017-08-02T10:50:17Z")

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