Hi Mickael,
I did the following:
- Built from source with Java 17
- Validated all checksums and signatures
- Ran unit tests
- Spot checked the docs and java doc
- Ran the broker quickstarts including the docker images
- Ran the Kafka Streams quickstart
- Used classic and the new streams mode
- Ran through the instructions for the Early access of the Streams
Rebalance Protocol
+1(binding)
Thanks,
Bill
On Fri, Aug 29, 2025 at 12:36 PM Mickael Maison <mickael.mai...@gmail.com>
wrote:
> 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>
>
