Kibana does not start after upgrade to 8.11.0

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):

{"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 @ (, v8.10.3 @ (","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?

The problem was solved after the upgrade to 8.11.1

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