# Upgrading kibana 3 to kibana 6.2
**URL:** https://discuss.elastic.co/t/upgrading-kibana-3-to-kibana-6-2/140087
**Category:** Kibana
**Created:** [July 16, 2018, 6:53am UTC](https://discuss.elastic.co/t/upgrading-kibana-3-to-kibana-6-2/140087 "2018-07-16T06:53:19Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@rkparkar](https://discuss.elastic.co/u/rkparkar)
#### Post date: [July 16, 2018, 6:53am UTC](https://discuss.elastic.co/t/upgrading-kibana-3-to-kibana-6-2/140087/1 "2018-07-16T06:53:20Z")
We are planning to upgrade kibana from 3 to 6.2
I have read that the dashboards arent compatible.
Need suggestions as to What can the best approach for the upgrade.
Also, what kind of changes are done that make the 2 versions incompatible? reason behind asking the question is to understand how difficult would it be to write a mapper code that would convert the json files of version 3 to that of version 6.2
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [July 16, 2018, 7:13am UTC](https://discuss.elastic.co/t/upgrading-kibana-3-to-kibana-6-2/140087/2 "2018-07-16T07:13:24Z")
Kibana 3 was based on facets, which were replaced in Elasticsearch by aggregations a long time ago. Kibana 3 is therefore a completely different code base to newer versions, so the only way to migrate is unfortunately to recreate the dashboards in the new version.
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### Author:  [@rkparkar](https://discuss.elastic.co/u/rkparkar)
#### Post date: [July 16, 2018, 8:54am UTC](https://discuss.elastic.co/t/upgrading-kibana-3-to-kibana-6-2/140087/3 "2018-07-16T08:54:35Z")
so , wouldnt it be possible to have some sort of a program that would convert the older version json file to newer one ?
what problems to you forsee in doing so ?
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [July 16, 2018, 9:40am UTC](https://discuss.elastic.co/t/upgrading-kibana-3-to-kibana-6-2/140087/4 "2018-07-16T09:40:56Z")
I recall this being deemed not possible even when we introduced Kibana 4 back in the day, as we otherwise most likely would have provided a migration tool. Since then a lot has changed in Elasticsearch and Kibana meaning that I doubt it is even at all possible.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 13, 2018, 9:41am UTC](https://discuss.elastic.co/t/upgrading-kibana-3-to-kibana-6-2/140087/5 "2018-08-13T09:41:14Z")
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