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Strimzi

0.50.0Networking & Messaging
Jan 18, 2026

CHECK 1OTHER 1

Strimzi 0.50.0 includes Java 21 adoption for the operators, with compatibility exceptions for several modules. It also changes connector plugin version configuration, so existing settings that use the rejected option are affected.

Check if affected (1)

  • breakingThe connector.plugin.version option, forbidden in connector configurations

    Applies if you use connector.plugin.version in KafkaConnect or KafkaMirrorMaker2 connector configuration.

    Strimzi 0.50.0 forbids connector.plugin.version in the KafkaConnect CR at .spec.config and in the KafkaMirrorMaker2 CR at .spec.mirrors[].sourceConnector.config and .spec.mirrors[].checkpointConnector.config. Use the dedicated version field instead.

All 1 other recorded changesvalue changes 1

value changes (1)

  • Strimzi Operators are now using Java 21 as the runtime and language level. The only exceptions are the api, test, crd-annotations, and crd-generator modules, which use Java 11 as the language level for compatibility with older Java versions. These modules will remain using the Java 11 language level up to and including Strimzi 0.51. They will move to Java 21 language level in Strimzi 1.0.0. If you use one of these modules as a dependency in your Java project, you will need to upgrade to Java 21 as well.
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