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Elastic Cloud on Kubernetes 3.1.0

Release Highlights

  • It is now possible to propagate metadata from the parent custom resource to the child resources created by the operator. If you add labels or annotations on an Elasticsearch, Kibana, or Agent resource, for example, these can be automatically propagated to the Pods, Services, and other resources created by the operator. Refer to the Propagate Labels and Annotations page for examples and more details.
  • To reduce the attack surface and improve overall security UBI images are now based on the UBI micro base image.

Features and enhancements

  • UBI: Use micro image instead of minimal #8704
  • Propagate metadata to children #8673 (issue: #2652)
  • Allow advanced configuration for fleet-managed Elastic Agents #8623 (issue: #8619)

Fixes

  • Set owner on service account Secret, update it when application is recreated #8716
  • fix: Cannot disable TLS in Logstash #8706 (issue: #8600)
  • Move from deprecated container input to filestream #8679 (issue: #8667)
  • Add automated workaround for 9.0.0 maps issue #8665 (issue: #8655)
  • Bump go.mod to v3 #8609
  • Helm: Add support for missing remoteClusterServer value #8612

Documentation improvements

  • [Helm] Fix examples/logstash/basic-eck.yaml #8695

Miscellaneous

Source: README.md, updated 2025-07-16