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+---
+layout: post
+title:  "kroxylicious-junit5-extension release 0.16.0"
+date:   2026-08-12 00:00:00 +0000
+author: "Robert Young"
+author_url: "https://github.com/robobario"
+categories:  releases junit5-extension
+---
+
+The Kroxylicious project is very pleased to announce the [0.16.0](https://github.com/kroxylicious/kroxylicious-junit5-extension/releases/tag/v0.16.0) release of our Junit5 Extension.
+
+Highlights of this release:
+
+* Raised the project's Java baseline to 21, up from 17. Make sure your build targets Java 21 before you upgrade.
+* Bumped the Kafka dependency to 4.3.1.
+* Relaxed `@BrokerConfig` so you can now override the replication factor of internal topics (offsets, transaction state log, share coordinator state). This helps when testing coordinator failover across multi-broker clusters.
+
+### Feedback
+
+Please let us know, through [Slack](https://kroxylicious.slack.com) or [GitHub](https://github.com/kroxylicious/kroxylicious-junit5-extension/issues), if you find the extension interesting or helpful.