Elastic Blog | Elasticsearch, Kibana, and ELK Stack Follow What's new in ECK 3.5 ECK 3.5 brings dynamic namespace management via label selectors, pause orchestration for safe maintenance windows, mutual TLS across all stack components, simplified resource specs, and a reduced operator memory footprint. https://www.elastic.co/blog/whats-new-elastic-cloud-on-kubernetes-3-5 elastic.co