We are planning to upgrade kibana from version 4.5 to version 5 or 6 Below is existing version stack, anyone help whether only kibana up-gradation is compatible or not.
Logstash Version:-2.3.3
Elasticsearch Version:-2.3.2
Kibana Version:-4.5.0-linux-x64
If you want to upgrade Kibana, you will definitely need to upgrade Elasticsearch. Logstash upgrade is not needed but recommended if you want to take advantage of some new features.
You can check out the Elastic Support Matrix here for version compatibility: https://www.elastic.co/support/matrix#matrix_compatibility
Later versions of Elasticsearch and Kibana have to be the exact same version as plugins for both are version specific
Make sure that you are aware of any big changes between major version upgrades and look into the proper upgrade process for the specific version you are looking to change to: https://www.elastic.co/guide/en/elasticsearch/reference/master/setup-upgrade.html