# Kibana does not start after upgrade to 8.11.0

**URL:** <https://discuss.elastic.co/t/kibana-does-not-start-after-upgrade-to-8-11-0/346994>\
**Category:** Kibana\
**Created:** [November 13, 2023, 10:20am UTC](https://discuss.elastic.co/t/kibana-does-not-start-after-upgrade-to-8-11-0/346994 "2023-11-13T10:20:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tori](https://avatars.discourse-cdn.com/v4/letter/t/c57346/32.png) [@tori](https://discuss.elastic.co/u/tori)\
**Post date:** [November 13, 2023, 10:20am UTC](https://discuss.elastic.co/t/kibana-does-not-start-after-upgrade-to-8-11-0/346994/1 "2023-11-13T10:20:56Z")

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We recently upgraded our on-prem Elastic stack deployment to 8.11.0

Kibana refuses to start after the upgrade (/var/log/kibana/kibana.log):

```auto
{"service":{"node":{"roles":["background_tasks","ui"]}},"ecs":{"version":"8.6.1"},"@timestamp":"2023-11-13T15:41:04.944+05:30","message":"This version of Kibana (v8.11.0) is incompatible with the following Elasticsearch nodes in your cluster: v8.10.3 @ 192.168.1.116:9200 (192.168.1.116), v8.10.3 @ 192.168.1.120:9200 (192.168.1.120)","log":{"level":"ERROR","logger":"elasticsearch-service"},"process":{"pid":161557},"trace":{"id":"f4be38bdd32957ab1c4627aede647735"},"transaction":{"id":"311382389e48ff3a"}}

```

Elasticsearch has been upgraded to version 8.11.0 on all 3 nodes of the cluster.

Kibana seems to be incorrectly detecting 2 out of 3 nodes in the cluster to be running Elasticsearch version 8.10.3.

"Kibana server is not ready yet." is displayed when Kibana is accessed via browser.

How can this be fixed?

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<div class="post-metadata">

**Author:** ![tori](https://avatars.discourse-cdn.com/v4/letter/t/c57346/32.png) [@tori](https://discuss.elastic.co/u/tori)\
**Post date:** [November 15, 2023, 9:14am UTC](https://discuss.elastic.co/t/kibana-does-not-start-after-upgrade-to-8-11-0/346994/2 "2023-11-15T09:14:11Z")

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The problem was solved after the upgrade to 8.11.1

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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:** [December 13, 2023, 9:14am UTC](https://discuss.elastic.co/t/kibana-does-not-start-after-upgrade-to-8-11-0/346994/3 "2023-12-13T09:14:41Z")

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