Upgrade/Downgrade process
Cassandra and Elasticsearch will ensure always backwards compatibility.
Downgrade process will not downgrade also Cassandra and Elasticsearch.
Kubernetes automatic rollout update process (for application layer):
![](../../__attachments/3347221285/Kubernetes-Deployments-Rolling-Update-Configuration.gif?inst-v=ffa2d127-74f7-4a38-ac00-bc62b4eb8eb4)
Cassandra and Elasticsearch will ensure always backwards compatibility.
Downgrade process will not downgrade also Cassandra and Elasticsearch.
Kubernetes automatic rollout update process (for application layer):