Elastic released ECK 3.5, introducing dynamic namespace management via label selectors, selective orchestration pausing during maintenance, and automatic stack-wide mutual TLS.

Key Details

• Dynamic namespace handling allows onboarding and offboarding namespaces with Kubernetes label selectors without restarting the operator.
• Pause orchestration selectively suspends spec-driven changes during maintenance windows while maintaining certificate rotation and health monitoring.
• Mutual TLS support expands automatically across all stack components connecting to Elasticsearch and Fleet Server.
• StackConfigPolicy introduces declarative Elasticsearch role definitions and dynamic substitution variables from ConfigMaps and Secrets.
• A top-level resources shorthand simplifies CPU and memory resource configuration across ECK custom resource definitions.

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