# Upgrade ES 6 Index to 7 Without Reindex

**URL:** <https://discuss.elastic.co/t/upgrade-es-6-index-to-7-without-reindex/309940>\
**Category:** Elasticsearch\
**Created:** [July 18, 2022, 6:57pm UTC](https://discuss.elastic.co/t/upgrade-es-6-index-to-7-without-reindex/309940 "2022-07-18T18:57:08Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Jerjef](https://avatars.discourse-cdn.com/v4/letter/j/ecc23a/32.png) [@Jerjef](https://discuss.elastic.co/u/Jerjef)\
**Post date:** [July 18, 2022, 6:57pm UTC](https://discuss.elastic.co/t/upgrade-es-6-index-to-7-without-reindex/309940/1 "2022-07-18T18:57:08Z")

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I know this sounds obvious, but I need to ask to be sure.

I have an ES 6 index in an ES 7 instance. I know it's backward compatible, but is there a way or upgrading the index to an ES 7 schema without reindexing due to the extensive time it took to create it in the first place?

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:** [July 18, 2022, 10:19pm UTC](https://discuss.elastic.co/t/upgrade-es-6-index-to-7-without-reindex/309940/2 "2022-07-18T22:19:28Z")

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Have you run the upgrade assistant in Kibana to see if it flags any issues with the index?

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**Author:** ![Jerjef](https://avatars.discourse-cdn.com/v4/letter/j/ecc23a/32.png) [@Jerjef](https://discuss.elastic.co/u/Jerjef)\
**Post date:** [July 19, 2022, 11:12am UTC](https://discuss.elastic.co/t/upgrade-es-6-index-to-7-without-reindex/309940/3 "2022-07-19T11:12:58Z")

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I should clarify, this is meant to be a more general question about the scenario so I couldn't say for sure what the upgrade assistant may say, but I was curious if there was a way of bringing an ES 6 index to a version 7 index without doing a full reindex.

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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:** [July 19, 2022, 10:00pm UTC](https://discuss.elastic.co/t/upgrade-es-6-index-to-7-without-reindex/309940/4 "2022-07-19T22:00:31Z")

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It depends.

If there are no mapping changes needed then you should be fine to upgrade and there will be no impact. You should be ok to go from 6 to 7, but you probably/might need to reindex when you want to go from 7 to 8.

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**Author:** ![Jerjef](https://avatars.discourse-cdn.com/v4/letter/j/ecc23a/32.png) [@Jerjef](https://discuss.elastic.co/u/Jerjef)\
**Post date:** [July 19, 2022, 11:59pm UTC](https://discuss.elastic.co/t/upgrade-es-6-index-to-7-without-reindex/309940/5 "2022-07-19T23:59:21Z")

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Thanks. I'm very new to this. What would be involved in upgrading the index? I understand that ES 7 supports an ES 6 index, but how would I upgrade the index to 7?

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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:** [July 20, 2022, 12:05am UTC](https://discuss.elastic.co/t/upgrade-es-6-index-to-7-without-reindex/309940/6 "2022-07-20T00:05:35Z")

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Just upgrade Elasticsearch and you will be ok for that.

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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 17, 2022, 12:06am UTC](https://discuss.elastic.co/t/upgrade-es-6-index-to-7-without-reindex/309940/7 "2022-08-17T00:06:18Z")

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