Hi Mickael,
I've done the following:
- Verified signature and checksum
- Built from source using JDK 17
- Ran all unit tests
- Failing (KAFKA-18912): MetadataSchemaCheckerToolTest.testVerifyEvolutionGit
- Flaky (first one is mentioned in KAFKA-18834):
./gradlew connect:runtime:test --tests LoggersTest --tests
OffsetUtilsTest -PmaxParallelForks=1 --rerun-tasks
- OffsetUtilsTest.testProcessPartitionKeyListWithElementsOfWrongType
- OffsetUtilsTest.testProcessPartitionKeyNotList
- OffsetUtilsTest.testProcessPartitionKeyListWithOneElement
- OffsetUtilsTest.testProcessPartitionKeyWithUnknownSerialization
- Flaky (KAFKA-19578): RemoteLogManagerTest#testCopyQuota
- Ran all integration tests
- Flaky (KAFKA-19452, fixed):
LogRecoveryTest.testHWCheckpointWithFailuresMultipleLogSegments
- Ran clients from Kafka examples module
- Tested share group using staging Maven artifacts
- Spot checked documentation
- Ran Docker image
The failing test is now fixed, the rest is flaky. If you can confirm
OffsetUtilsTest flakiness, I will open a dedicated Jiras.
Cheers
Fede
On Wed, Aug 27, 2025 at 2:39 PM 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
