Hello Kafka users, developers, and client-developers, This is the second candidate for the release of Apache Kafka 3.9.1. This RC fixed the release tag off to a temporary branch issue (KAFKA-19166 <https://issues.apache.org/jira/browse/KAFKA-19166>) compared with RC0.
This is a bug-fix release with several fixes, and most importantly, it adds Java 23 support for 3.9 Release notes for the 3.9.1 release: https://dist.apache.org/repos/dist/dev/kafka/3.9.1-rc1/RELEASE_NOTES.html Please download, test, and vote by *Wednesday, April 30, 9:00 AM PT* Kafka's KEYS file containing PGP keys we use to sign the release: https://kafka.apache.org/KEYS * Release artifacts to be voted upon (source and binary): https://dist.apache.org/repos/dist/dev/kafka/3.9.1-rc1/ * Docker release artifacts to be voted upon: apache/kafka:3.9.1-rc1 https://hub.docker.com/layers/apache/kafka/3.9.1-rc1/images/sha256-459c4e12260a1426a4f53c357d6e0c52b58ed70ff4118de1ffceb3f131d64a2a apache/kafka-native:3.9.1-rc1 https://hub.docker.com/layers/apache/kafka-native/3.9.1-rc1/images/sha256-be97bd4564444cae8a9880a4eaa1a594df2d2e5ea0b8990228751cdef278faca * Maven artifacts to be voted upon: https://repository.apache.org/content/groups/staging/org/apache/kafka/ * Javadoc: https://dist.apache.org/repos/dist/dev/kafka/3.9.1-rc1/javadoc/ * Tag to be voted upon (off 3.9 branch) is the 3.9.1 tag: https://github.com/apache/kafka/releases/tag/3.9.1-rc1 * Documentation: https://kafka.apache.org/39/documentation.html * Protocol: https://kafka.apache.org/39/protocol.html * CI builds for the 3.9 branch: Unit/integration tests (There are some flaky tests): https://ci-builds.apache.org/job/Kafka/job/kafka/job/3.9/194/ System tests: http://jenkins.opensource4you.tw/job/kafka-e2e/304/ * Successful Docker Image Github Actions Pipeline for 3.9 branch: Docker Build Test Pipeline (JVM): https://github.com/apache/kafka/actions/runs/14597360082 Docker Build Test Pipeline (Native): https://github.com/apache/kafka/actions/runs/14597364430 Thanks, TengYao Chi
