# Elastic search upgradtion

**URL:** https://discuss.elastic.co/t/elastic-search-upgradtion/109923
**Category:** Elasticsearch
**Created:** [December 1, 2017, 12:00pm UTC](https://discuss.elastic.co/t/elastic-search-upgradtion/109923 "2017-12-01T12:00:57Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![aravind\_apalya](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@aravind\_apalya](https://discuss.elastic.co/u/aravind_apalya)
#### Post date: [December 1, 2017, 12:00pm UTC](https://discuss.elastic.co/t/elastic-search-upgradtion/109923/1 "2017-12-01T12:00:57Z")

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Hi Team,

I am using the elastic search of version 0.95 from the past few years.  
Now I want to upgrade my elastic search.  
My worry is, is there any code change required to upgrade elastic search.  
And can I directly upgrade to v6 from v0.95?  
My application is large-scale application and there are vast methods in it.  
And I am trying to upgrade via rpm install.  
Can anyone explain clearly what are steps I need to follow from end to end  
I've already tried to upgrade v6 and v2, but it's not working.

Thanks,  
K.Aravind.

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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: [December 1, 2017, 12:20pm UTC](https://discuss.elastic.co/t/elastic-search-upgradtion/109923/2 "2017-12-01T12:20:15Z")

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No it’s not possible without a huge amount of work IMO.  
Like 0.90 -\> 1.7  
1.7 -\> 2.4  
2.4 -\> 5.6  
5.6 -\> 6.0

And probably a lot of changes on the client side.

Would be may be better to reindex from scratch?

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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: [December 29, 2017, 12:20pm UTC](https://discuss.elastic.co/t/elastic-search-upgradtion/109923/3 "2017-12-29T12:20:17Z")

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