# Cannot Upgarde from 6.71 to 7.0

**URL:** <https://discuss.elastic.co/t/cannot-upgarde-from-6-71-to-7-0/185488>\
**Category:** Elasticsearch\
**Created:** [June 12, 2019, 5:40pm UTC](https://discuss.elastic.co/t/cannot-upgarde-from-6-71-to-7-0/185488 "2019-06-12T17:40:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![butzy](https://avatars.discourse-cdn.com/v4/letter/b/a587f6/32.png) [@butzy](https://discuss.elastic.co/u/butzy)\
**Post date:** [June 12, 2019, 5:40pm UTC](https://discuss.elastic.co/t/cannot-upgarde-from-6-71-to-7-0/185488/1 "2019-06-12T17:40:04Z")

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Hallo , I am absolut beginner.I cannot Upgrade from 6.7.1 to 7.0 and above .  
Can sombody guide me ?  
Thnaks

 ![Upgrade%20Assistant%201](https://us1.discourse-cdn.com/elastic/original/3X/1/6/1676314245aec3addcc509070618e5d3dc40e486.png) ![Upgrade%20Assistant%202%20Cluster](https://us1.discourse-cdn.com/elastic/original/3X/d/f/dfe58839542072106ba253b7a78dca24db634cea.png)

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**Author:** ![gbrown](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gbrown/32/34482_2.png) [@gbrown](https://discuss.elastic.co/u/gbrown)\
**Post date:** [June 12, 2019, 10:34pm UTC](https://discuss.elastic.co/t/cannot-upgarde-from-6-71-to-7-0/185488/2 "2019-06-12T22:34:49Z")

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As of 7.0, you must tell Elasticsearch what the nodes in your cluster are if you're running in [production mode](https://www.elastic.co/guide/en/elasticsearch/reference/7.0/bootstrap-checks.html#dev-vs-prod-mode). If you want to run in development mode, rather than production mode, you can set `discovery.type: single-node` in `elasticsearch.yml`, but this will limit your cluster to a single node and disable some other checks which help ensure that your cluster will run in a stable and performant manner.

You can find the documentation for this in the [docs for bootstrapping a cluster](https://www.elastic.co/guide/en/elasticsearch/reference/7.0/modules-discovery-bootstrap-cluster.html) and the [docs for the discovery settings](https://www.elastic.co/guide/en/elasticsearch/reference/7.0/discovery-settings.html).

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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:** [July 10, 2019, 10:35pm UTC](https://discuss.elastic.co/t/cannot-upgarde-from-6-71-to-7-0/185488/3 "2019-07-10T22:35:00Z")

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