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⚠️ Important: Strimzi 0.46.1 supports only Kubernetes 1.25 and newer. Kubernetes 1.23 and 1.24 are not supported anymore.

⚠️ Support for ZooKeeper-based Apache Kafka clusters and for KRaft migration has been removed

Main changes since 0.46.0

This release contains the following new features and improvements:

  • Update CSV file for OLM installation to add missing permission for broker Pods to "get" nodes Kubernetes resource.
  • Allow the injection of annotations on the deployment object in Helm charts.

All changes can be found under the 0.46.1 milestone.

Watch out also for some notable changes, deprecations, and removals:

  • Support for ZooKeeper-based clusters and for migration from ZooKeeper-based clusters to KRaft has been removed. Please make sure all your clusters are using KRaft before upgrading to Strimzi 0.46.0 or newer!
  • Support for MirrorMaker 1 has been removed. Please make sure to migrate to MirrorMaker 2 before upgrading to Strimzi 0.46 or newer.
  • Strimzi EnvVar Configuration Provider (deprecated in Strimzi 0.38.0) and Strimzi MirrorMaker 2 Extensions (deprecated in Strimzi 0.28.0) plugins were removed from Strimzi container images. Please use the Apache Kafka EnvVarConfigProvider and Identity Replication Policy instead.
  • When using Kafka Connect or Kafka MirrorMaker 2 operands and upgrading from Strimzi 0.38 or older, make sure the StableConnectIdentities feature gate is enabled and StrimziPodSets are used before upgrading.
  • When using the Kafka operand and upgrading from Strimzi 0.34 or older, make sure the UseStrimziPodSets feature gate is enabled and StrimziPodSet resources are used before upgrading.
  • The storage overrides for configuring per-broker storage class are not supported anymore. If you are using the storage overrides, you should instead use multiple KafkaNodePool resources with a different storage class each. For more details about migrating from storage overrides, please follow the documentation.
  • The Open Policy Agent authorization (type: opa) has been deprecated and will be removed in the future. To use the Open Policy Agent authorizer, you can use the type: custom authorization.
  • Removed the statefulset.kubernetes.io/pod-name label from pods and external listeners Kubernetes Services.
  • If you have any custom setup leveraging such label, please use the strimzi.io/pod-name one instead.
  • The secrets list for mounting additional Kubernetes Secrets in type: custom authentication was deprecated and will be removed in the future. Please use the template section to configure additional volumes instead.
  • Kafka 4.0 and newer is using Log4j2 for logging instead of Reload4j/Log4j1. If you have any custom logging configuration, you might need to update it during the upgrade to Kafka 4.0.
  • Kubernetes events for Pod restarts no longer have the Pod as the regardingObject. If you are using regardingObject as a field-selector for listing events you must update the selector to specify the Kafka resource instead.
  • From Kafka 4.0.0, to enable the JMXReporter you must either enable metrics in .spec.kafka.metrics, or explicitly add JMXReporter in metric.reporters.

Upgrading from Strimzi 0.46.0

See the documentation for upgrade instructions.

Upgrading from Strimzi 0.22 or earlier

Direct upgrade from Strimzi 0.22 or earlier is not supported anymore! You have to upgrade first to one of the previous versions of Strimzi. You will also need to convert the CRD resources. For more details, see the documentation.

Container images

The following container images are part of this release:

Name Image
Operators quay.io/strimzi/operator@sha256:6a22e4968e9d409405423d12c04a0e3fecaea2ee2794bd27de7cf21f59453265
Apache Kafka 3.9.0 quay.io/strimzi/kafka@sha256:f3837f8cb2a60e906e84486128c41c398424f4085df2348e9e0486bfc12089fd
Apache Kafka 4.0.0 quay.io/strimzi/kafka@sha256:82273d873ce21a73f8f3118bf61627cb15734b43ea7ca92d43b290340b44e485
Strimzi Bridge quay.io/strimzi/kafka-bridge@sha256:3e1815aed3f74b8573cebfced66b2c78ca0cf7c746c26db2002380cd39d09ae6
Kaniko executor quay.io/strimzi/kaniko-executor@sha256:ef1a39c363e145041d80103c3c12da9429ce06cf21dff6fb1fb75d0c0ed9c35b
Maven Builder quay.io/strimzi/maven-builder@sha256:a13e82a59bc0b7c12bb6ff62b2def6d472d15df426076256a04c45e50782d868

What's Changed

Full Changelog: https://github.com/strimzi/strimzi-kafka-operator/compare/0.46.0...0.46.1

Source: README.md, updated 2025-06-19