# What's new in ECK 3.5

DevFeed: [What's new in ECK 3.5](<https://devfeed.tech/articles/what-s-new-in-eck-3-5-4846.md>)

Original publisher: [Read original article](<https://www.elastic.co/blog/whats-new-elastic-cloud-on-kubernetes-3-5>)

Author: Kostas Stamatakis

Published: 2026-08-20T00:00:00Z

Content type: release

Language: en

Sources: [Elastic Blog - Elasticsearch, Kibana, and ELK Stack](<https://devfeed.tech/sources/elastic-blog-elasticsearch-kibana-and-elk-stack.md>)

Topics: [Elastic Cloud](<https://devfeed.tech/topics/elastic-cloud.md>)

Tags: [cloud](<https://devfeed.tech/tags/cloud.md>), [cloud-native-kubernetes](<https://devfeed.tech/tags/cloud-native-kubernetes.md>), [elastic-cloud](<https://devfeed.tech/tags/elastic-cloud.md>), [elasticsearch](<https://devfeed.tech/tags/elasticsearch.md>), [feature](<https://devfeed.tech/tags/feature.md>), [infrastructure](<https://devfeed.tech/tags/infrastructure.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [memory](<https://devfeed.tech/tags/memory.md>), [onboarding](<https://devfeed.tech/tags/onboarding.md>), [orchestration](<https://devfeed.tech/tags/orchestration.md>), [platform](<https://devfeed.tech/tags/platform.md>), [release](<https://devfeed.tech/tags/release.md>), [resource](<https://devfeed.tech/tags/resource.md>), [scale](<https://devfeed.tech/tags/scale.md>), [security](<https://devfeed.tech/tags/security.md>), [selectors](<https://devfeed.tech/tags/selectors.md>), [tls](<https://devfeed.tech/tags/tls.md>), [workflows](<https://devfeed.tech/tags/workflows.md>)

## AI overview

ECK 3.5 adds label-selector-based namespace management, pausable orchestration for maintenance, and automatic mutual TLS client certificates across Elasticsearch-connected components.

## Source excerpt

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.