⚠️ Important: Strimzi 0.39 is the last minor release with support for Kubernetes 1.21 and 1.22. From Strimzi 0.40 on, only Kubernetes 1.23 and newer will be supported.

Main changes since 0.38.0

This release contains the following new features and improvements:

• Add support for Apache Kafka 3.5.2 and 3.6.1
• The StableConnectIdentities feature gate moves to GA stage and is now permanently enabled without the possibility to disable it. All Connect and Mirror Maker 2 operands will now use StrimziPodSets.
• The KafkaNodePools feature gate moves to the beta stage and is enabled by default. If needed, KafkaNodePools can be disabled in the feature gates configuration in the Cluster Operator.
• The UnidirectionalTopicOperator feature gate moves to the beta stage and is enabled by default. If needed, UnidirectionalTopicOperator can be disabled in the feature gates configuration in the Cluster Operator.
• Improved Kafka Connect metrics and dashboard example files
• Allow specifying and managing KRaft metadata version
• Add support for KRaft to KRaft upgrades (Apache Kafka upgrades for the KRaft-based clusters)
• Improved Kafka Mirror Maker 2 dashboard example file
• Support for rolling updates of KRaft controller nodes

All changes can be found under the 0.39.0 milestone.

Maven artifacts

To test the Maven artifacts that are part of this release, use the staging repository by including the following in your pom.xml:

  <repositories>
    <repository>
      <id>staging</id>
      <url>https://oss.sonatype.org/content/repositories/iostrimzi-1206/</url>
    </repository>
  </repositories>

Upgrading from Strimzi 0.38.0

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: