Hello all,

Voting is closed and RC3 passed by 
4 binding (Chia-Ping, Mickael, Bill, David) 
2 non-binding  (Jakub, Eric)

Best Regards,
Jiunn-Yang

> Eric Chang <[email protected]> 於 2026年10月13日 下午4:33 寫道:
> 
> Hi Jiunn-Yang,
> 
> Thanks for running the release. I verified 4.3.2-rc3 as follows:
> 
> - Verified the SHA512 checksums and GPG signatures of the source and
>  binary tarballs. They are signed by Jiunn Yang Huang, whose key is
>  in KEYS.
> - Built from source with JDK 17 (./gradlew clean build -x test).
> - Ran the clients and core unit tests. All core tests passed. One
>  clients test failed once (SaslAuthenticatorTest
>  .testValidSaslScramMechanisms). It passed in 5 reruns, and
>  SaslAuthenticatorTest is already flaky on Develocity, so I think it
>  is a flaky test.
> - Started a KRaft broker from the binary tarball with JDK 17. Produced
>  and consumed with none, gzip, snappy, lz4 and zstd compression.
> - Started apache/kafka:4.3.2-rc3 and apache/kafka-native:4.3.2-rc3
>  with the default config (using podman). Produce and consume work on
>  both.
> - Ran the full system tests on the rc3 commit (0a6c96d3):
>  https://jenkins.opensource4you.tw/job/kafka-e2e/975/
>  1116 tests, 1103 passed, 11 failed. I checked the logs of all 11
>  failures. They are known flaky tests or timing issues, and none of
>  them is related to this release.
> 
> +1 (non-binding)
> 
> Best,
> Eric
> 
> On Tue, Oct 13, 2026 at 4:05 PM David Jacot <[email protected]> wrote:
>> 
>> Hi Jiunn-Yang,
>> 
>> Thanks for running the release.
>> 
>> I did the following to validate RC3:
>> - Verified the signatures and checksums of the source, binary, site-docs
>>  and release notes artifacts, and of all the staged Maven artifacts
>> - Checked that the source tarball matches the 4.3.2-rc3 tag
>> - Built from source and ran the unit tests with JDK 17 and JDK 25
>> - Ran the quickstart with the binary on JDK 17 and JDK 25, with classic
>>  and consumer groups
>> - Did a rolling upgrade of a 3-node combined cluster from 4.3.1 to
>>  4.3.2 while producing and consuming (classic and consumer groups)
>> - Ran the apache/kafka and apache/kafka-native images
>> - Built a small producer/consumer/admin app against the staged Maven
>>  artifacts and ran it with JDK 17 and JDK 25
>> - Spot checked the release notes, Javadoc and documentation
>> 
>> +1 (binding)
>> 
>> Best,
>> David
>> 
>> On Mon, Oct 12, 2026 at 11:15 PM Bill Bejeck <[email protected]> wrote:
>>> 
>>> 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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