<p>Updates the Apache Kafka version for the cluster.</p>
kafka_update_cluster_kafka_version(ClusterArn, ConfigurationInfo,
CurrentVersion, TargetKafkaVersion)
[required] <p>The Amazon Resource Name (ARN) of the cluster to be updated.</p>
<p>The custom configuration that should be applied on the new version of cluster.</p>
[required] <p>Current cluster version.</p>
[required] <p>Target Kafka version.</p>
svc$update_cluster_kafka_version( ClusterArn = "string", ConfigurationInfo = list( Arn = "string", Revision = 123 ), CurrentVersion = "string", TargetKafkaVersion = "string" )