v4.0.0

This release targets Kafka 4.0.0. It only works in KRaft mode (Zookeeper is no longer used).

Major changes

• Java 17+: as Kafka Server 4.x requires Java 17+, so does embedded-kafka even though Kafka Clients/Streams are still available for Java 11+.
• Scala 2.13+: Kafka is not compiled against Scala 2.12 anymore, so does embedded-kafka.
• embedded-kafka 4.0.0 starts a Kafka server in combined mode (broker and controller) and no more a Zookeeper server.

Changes required in your code

As a user, you'll have to change your code to use controllerPort instead of zookeeperPort in places you were doing so:

- EmbeddedKafkaConfig(kafkaPort = 12345, zooKeeperPort = 54321)
+ EmbeddedKafkaConfig(kafkaPort = 12345, controllerPort = 54321)

Other changes

• feat: upgrade to Kafka 4.0.0 by @gaeljw in #562
• Update scala-library to 2.13.16 by @scala-steward in #540
• Update scala3-library to 3.3.5 by @scala-steward in #549
• Update sbt, scripted-plugin to 1.10.11 by @scala-steward in #559

Full Changelog: v3.9.0...v4.0.0