Hi Jiunn-Yang,

Thanks for running the 4.3.2 release.

I did the following to validate RC3:

- Verified checksums (md5/sha1/sha512) and GPG signatures
  - Artifacts: source, binary, site-docs, RELEASE_NOTES
  - Signed by Jiunn Yang Huang <[email protected]>
  - Key 062C22C0F467AF9A02D512B5504473FAF80CBBCB
- Verified GPG signatures of the Maven staging artifacts
  - 65 modules, all signed with the same key as the tarballs
- Built from source with JDK 17
  - Ran the core, clients and streams unit tests
- Ran quickstarts from the bundled site-docs against the binary dist
  - Broker quickstart
  - Kafka Streams WordCount quickstart
  - Used both the classic and streams (KIP-1071) group protocols
- Ran the same quickstarts against the Docker images
  - apache/kafka:4.3.2-rc3
  - apache/kafka-native:4.3.2-rc3
- Checked shipped jar versions for the dependency and CVE bumps
  - jackson-core and jackson-databind 2.21.7
  - log4j 2.25.5
  - jetty 12.0.37
  - lz4-java 1.11.4
  - snappy-java 1.1.10.11
- Exercised the rc3 dependency bumps against a local broker
  - lz4/snappy/zstd/gzip round trips, incl. broker recompression
  - Connect REST and partition reassignment JSON (Jackson)
- Exercised these fixes by hand, comparing against 4.3.1
  - Clients:
    - KAFKA-20700, KAFKA-20769
  - Streams:
    - KAFKA-20464
  - Group coordinator:
    - KAFKA-20434

- Docs still reference 4.3.1 quickstart etc - not a blocker we can do a
follow-up PR.

+1 (binding)

Thanks,
Bill

On Mon, Oct 12, 2026 at 6:20 AM Mickael Maison <[email protected]>
wrote:

> Hi,
>
> I did the following testing:
> - checked signatures and checksums
> - built from source
> - ran quickstart with Java 20 and both docker images
>
> Just one nit: the javadoc were generated with <html lang="zh">, so
> most browsers bring up the translation dialog when you open them
>
> + (binding)
>
> Thanks,
> Mickael
>
> On Mon, Oct 12, 2026 at 11:35 AM Jakub Scholz <[email protected]> wrote:
> >
> > +1 (non-binding). I used the staged binaries and Maven artifacts to run
> my
> > smoke tests & the Strimzi tests. All seems to work fine. Thanks for
> running
> > the release.
> >
> > Thanks & Regards
> > Jakub
> >
> > On Sun, Oct 11, 2026 at 4:07 PM 黃竣陽 <[email protected]> wrote:
> >
> > > Hello Kafka users, developers and client-developers,
> > >
> > > This is the fourth candidate for release of Apache Kafka 4.3.2.
> > >
> > > This is a bugfix release in 4.3 line.
> > >
> > > Release notes for the 4.3.2 release:
> > >
> https://dist.apache.org/repos/dist/dev/kafka/4.3.2-rc3/RELEASE_NOTES.html
> > > <
> https://dist.apache.org/repos/dist/dev/kafka/4.3.2-rc/RELEASE_NOTES.html>
> > >
> > > Please download, test and vote by Wednesday, October 14th, 9am PT
> > >
> > > Kafka's KEYS file containing PGP keys we use to sign the release:
> > > https://downloads.apache.org/kafka/KEYS
> > >
> > > * Release artifacts to be voted upon (source and binary):
> > > https://dist.apache.org/repos/dist/dev/kafka/4.3.2-rc3/ <
> > > https://dist.apache.org/repos/dist/dev/kafka/4.3.2-rc/>
> > >
> > > * Docker release artifacts to be voted upon:
> > > apache/kafka:4.3.2-rc3
> > > apache/kafka-native:4.3.2-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/4.3.2-rc3/javadoc/index.html
> > >
> > > * Tag to be voted upon (off 4.3 branch) is the 4.3.2-rc3 tag:
> > > https://github.com/apache/kafka/releases/tag/4.3.2-rc3
> > >
> > > * Documentation:
> > > https://kafka.apache.org/43/documentation.html
> > >
> > > * Protocol:
> > > https://kafka.apache.org/43/design/protocol
> > >
> > > * Successful CI builds for the 4.3 branch:
> > > Unit/integration tests:
> > > https://github.com/apache/kafka/actions/runs/38121352442
> > > System tests: [will provide it soon]
> > >
> > > * Successful Docker Image Github Actions Pipeline for 4.3 branch:
> > > Docker Build Test Pipeline (JVM):
> > > https://github.com/apache/kafka/actions/runs/38107480297
> > > Docker Build Test Pipeline (Native):
> > > https://github.com/apache/kafka/actions/runs/38107494688
> > >
> > > Thanks,
> > > Jiunn-Yang Huang
>

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