Hi, The docs PR has been merged so the documentation and protocol for 4.1 are up: - https://kafka.apache.org/41/documentation.html - https://kafka.apache.org/41/protocol.html
The system tests have completed. I still got the network_degrade_test failure (tracked by https://issues.apache.org/jira/browse/KAFKA-19549). Also I reverted by mistake the temporary fix [0] I had made to the 4.1 branch for https://issues.apache.org/jira/browse/KAFKA-19581, so the Streams upgrade tests failed in the results, but they pass locally. - Core: https://drive.google.com/file/d/1-XdhozO1t78vWW4z127lweNa45DiYbmd/view?usp=drive_link - Non core: https://drive.google.com/file/d/1BLydIgKGBsV6B0UtnKJMNKNwAgz0ABGy/view?usp=drive_link 0: https://github.com/apache/kafka/commit/de16dd103af93bb68a329987ff19469941f85cbc Thanks, Mickael On Fri, Aug 29, 2025 at 12:54 PM Paolo Patierno <paolo.patie...@gmail.com> wrote: > > We ran all regression tests with Strimzi and everything looks good. > > +1 (non binding) > > Thanks, > Paolo > > On Wed, 27 Aug 2025 at 14:39, Mickael Maison <mickael.mai...@gmail.com> > wrote: > > > Hello Kafka users, developers and client-developers, > > > > This is the 4th candidate for release of Apache Kafka 4.1.0. > > > > The release brings many new features and improvements: > > - Mechanism for plugin to register metrics > > - Allow running multiple versions of connector plugins > > - Queue are now in preview access > > - New Streams rebalance protocol in early access > > - Support for OAuth jwt-bearer grant type > > - Improved metadata replication > > > > Release notes for the 4.1.0 release: > > https://dist.apache.org/repos/dist/dev/kafka/4.1.0-rc3/RELEASE_NOTES.html > > > > *** Please download, test and vote by Monday September 1 > > > > 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/4.1.0-rc3/ > > > > * Docker release artifacts to be voted upon: > > apache/kafka:4.1.0-rc3 > > apache/kafka-native:4.1.0-rc3 > > > > * 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/4.1.0-rc3/javadoc/ > > > > * Tag to be voted upon (off 4.1 branch) is the 4.1.0 tag: > > https://github.com/apache/kafka/releases/tag/4.1.0-rc3 > > > > * Documentation: > > https://kafka.apache.org/41/documentation.html > > PR (https://github.com/apache/kafka-site/pull/702) updated for RC3 is > > not merged yet > > > > * Protocol: > > https://kafka.apache.org/41/protocol.html > > PR (https://github.com/apache/kafka-site/pull/702) updated for RC3 is > > not merged yet > > > > * Successful CI builds for the 4.1 branch: > > Unit/integration tests: > > https://github.com/apache/kafka/actions/runs/17263427471 > > System tests: Tests are currently running, I'll post the results once > > they complete > > > > * Successful Docker Image Github Actions Pipeline for 4.1 branch: > > Docker Build Test Pipeline (JVM): > > https://github.com/apache/kafka/actions/runs/17263452575 > > Docker Build Test Pipeline (Native): > > https://github.com/apache/kafka/actions/runs/17263456887 > > > > Thanks, > > Mickael > > > > > -- > Paolo Patierno > > *Senior Principal Software Engineer @ IBM**CNCF Ambassador* > > Twitter : @ppatierno <http://twitter.com/ppatierno> > Linkedin : paolopatierno <http://it.linkedin.com/in/paolopatierno> > GitHub : ppatierno <https://github.com/ppatierno>
