Thanks Andrew and Jakub. I'll update the upgrade section.
System tests <https://confluent-open-source-kafka-system-test-results.s3-us-west-2.amazonaws.com/4.2/2026-09-21--002.015eaedd-afa4-4b27-90cf-1b6853b72587--1790059100--confluentinc--4.2--9acad608cc/report.html> passed, with 1 flaky test (kafkatest.tests.core.network_degrade_testClass: NetworkDegradeTest) that succeeded on a rerun <https://confluent-open-source-kafka-system-test-results.s3-us-west-2.amazonaws.com/4.2/2026-09-23--002.26e6354d-b4e5-4f57-8551-de99d2aaf86a--1790231853--confluentinc--4.2--b89caea97a/report.html> . I am waiting for further votes. Regards, Apoorv Mittal On Wed, Sep 23, 2026 at 3:52 PM Andrew Schofield <[email protected]> wrote: > Hi Apoorv, > Thanks for running the release. I performed the following validation: > > * Checked the release notes > * Built from source, ran quickstart and checked Kafka version > * Downloaded the binaries too, ran quickstart and checked Kafka version > * Downloaded the tagged assets from GitHub, unpacked and ran simple test > * Checked the javadoc > * Browsed the docs as md > * Downloaded and ran both Docker images > * Verified the checksums and signatures of the release artefacts > * Built a simple application using the 4.2.2 Maven artefacts > > I think you need to add a section to the upgrading docs. > > +1 (binding) > > Thanks, > Andrew > > On 2026/09/23 13:13:09 Jakub Scholz wrote: > > Great, thanks a lot. I did some manual smoke testing and also run all the > > Strimzi tests with it. And all seems to work fine for me ... so +1 > > non-binding. > > > > Thanks for running the release. > > > > Jakub > > > > On Tue, Sep 22, 2026 at 5:37 PM Apoorv Mittal <[email protected]> > > wrote: > > > > > I have re-uploaded the artifacts. Thanks Jakub for checking. > > > > > > Regards, > > > Apoorv Mittal > > > > > > > > > On Tue, Sep 22, 2026 at 4:08 PM Apoorv Mittal < > [email protected]> > > > wrote: > > > > > > > It looks like someone dropped the artifacts from the staging > repository. > > > I > > > > am checking. > > > > > > > > Regards, > > > > Apoorv Mittal > > > > > > > > > > > > On Tue, Sep 22, 2026 at 3:08 PM Jakub Scholz <[email protected]> > wrote: > > > > > > > >> Did the staged Maven artifacts disappear from the staging repo for > > > >> everyone > > > >> or only for me? I was able to pull them yesterday and earlier > today. But > > > >> 4.2.2 now seems to be gone. E.g.: > > > >> > > > >> > > > > https://repository.apache.org/content/groups/staging/org/apache/kafka/kafka_2.13/4.2.2/ > > > >> and so on. > > > >> > > > >> Thanks & Regards > > > >> Jakub > > > >> > > > >> On Mon, Sep 21, 2026 at 10:32 PM Apoorv Mittal < > > > [email protected]> > > > >> wrote: > > > >> > > > >> > Hello Kafka users, developers and client-developers, > > > >> > > > > >> > This is the second (RC1) candidate for release of Apache Kafka > 4.2.2. > > > >> > > > > >> > This is a bug fix release in the 4.2 line. > > > >> > > > > >> > Release notes for the 4.2.2 release: > > > >> > > > > >> > > > > https://dist.apache.org/repos/dist/dev/kafka/4.2.2-rc1/RELEASE_NOTES.html > > > >> > > > > >> > Please download, test and vote by *24 September, Monday 5PM PST* > > > >> > > > > >> > Kafka's KEYS file containing PGP keys we use to sign the release: > > > >> > https://downloads.apache.org/kafka/KEYS < > > > https://kafka.apache.org/KEYS> > > > >> > > > > >> > * Release artifacts to be voted upon (source and binary): > > > >> > https://dist.apache.org/repos/dist/dev/kafka/4.2.2-rc1/ > > > >> > > > > >> > * Docker release artifacts to be voted upon: > > > >> > apache/kafka:4.2.2-rc1 > > > >> > < > > > >> > > > > >> > > > > https://hub.docker.com/layers/apache/kafka/4.2.2-rc1/images/sha256-daa39dc85acd37b148fad74d6b22b60fa5f7fa05048a5c8aa3b654140c63dd58 > > > >> > > > > > >> > apache/kafka-native:4.2.2-rc1 > > > >> > < > > > >> > > > > >> > > > > https://hub.docker.com/layers/apache/kafka-native/4.2.2-rc1/images/sha256-eae4a5c3675030bb3c854eb89fab50bbb75fd2f7800d4385b0b3fda642852d2b > > > >> > > > > > >> > > > > >> > * 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/4.2.2-rc1/javadoc/index.html > > > >> > > > > >> > * Tag to be voted upon (off 4.2 branch) is the 4.2.2 tag: > > > >> > https://github.com/apache/kafka/releases/tag/4.2.2-rc1 > > > >> > > > > >> > * Documentation: > > > >> > https://kafka.apache.org/42/documentation.html > > > >> > > > > >> > * Protocol: > > > >> > https://kafka.apache.org/42/design/protocol > > > >> > > > > >> > * Successful CI builds for the 4.2 branch: > > > >> > Unit/integration tests: > > > >> > https://github.com/apache/kafka/actions/runs/35636810731 > > > >> > System tests: Before Test Only fix - > > > >> > > > > >> > > > > >> > > > > https://confluent-open-source-kafka-system-test-results.s3-us-west-2.amazonaws.com/4.2/2026-09-20--002.7c3ba21d-079a-4799-8f1e-1f798f499541--1789972353--confluentinc--4.2--0fbf14c557/report.html > > > >> > I have retriggered system tests though; will update the thread. > > > >> > > > > >> > * Successful Docker Image Github Actions Pipeline for 4.2 branch: > > > >> > Docker Build Test Pipeline (JVM): > > > >> > https://github.com/apache/kafka/actions/runs/35637052515 > > > >> > Docker Build Test Pipeline (Native): > > > >> > https://github.com/apache/kafka/actions/runs/35637084838 > > > >> > > > > >> > Regards, > > > >> > Apoorv Mittal > > > >> > > > > >> > > > > > > > > > >
