# Upgrade ES to 5.4

**URL:** <https://discuss.elastic.co/t/upgrade-es-to-5-4/93719>\
**Category:** Elasticsearch\
**Created:** [July 19, 2017, 8:37am UTC](https://discuss.elastic.co/t/upgrade-es-to-5-4/93719 "2017-07-19T08:37:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SRK](https://avatars.discourse-cdn.com/v4/letter/s/258eb7/32.png) [@SRK](https://discuss.elastic.co/u/SRK)\
**Post date:** [July 19, 2017, 8:37am UTC](https://discuss.elastic.co/t/upgrade-es-to-5-4/93719/1 "2017-07-19T08:37:23Z")

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Hi,  
We currently use in our system elasticsearch 2.4 and we want to upgrade to 5.4.  
What are the major changes? Will we need data migration? Will our code that querying and inserting into the ES need to change?  
Thanks

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**Author:** ![TimV](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/timv/32/13162_2.png) [@TimV](https://discuss.elastic.co/u/TimV)\
**Post date:** [July 21, 2017, 7:07am UTC](https://discuss.elastic.co/t/upgrade-es-to-5-4/93719/2 "2017-07-21T07:07:08Z")

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There is an [upgrade guide](https://www.elastic.co/guide/en/elastic-stack/5.4/index.html) available online.

Please read through that and then come back with any specific questions you have.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 18, 2017, 7:07am UTC](https://discuss.elastic.co/t/upgrade-es-to-5-4/93719/3 "2017-08-18T07:07:14Z")

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