Hi,
I did the following:
- checked the signatures and checksums
- built from source
- ran the tests
- Tested Docker Images:
-- can start
-- can create topics
- ran quickstart
- ran sample apps with consumer groups
- checked Java client interaction from artifacts (admin, producer, consumer
and streams)
- checked Tiered Storage offloads to remote storage (with Aiven's plugin)
- checked Kafka Connect
Verified on Linux with JDK 21
+1 (binding)
On Tue, May 12, 2026 at 5:31 PM Lucas Brutschy via dev <dev@kafka.apache.org>
wrote:
> +1 (non-binding)
>
> Verified on macOS arm64, JDK 17:
>
> * GPG signatures and SHA512 checksums for source, binary, and
> site-docs tarballs
> * LICENSE/NOTICE present
> * Built source with ./gradlew jar — BUILD SUCCESSFUL
> * git tag 4.2.1-rc4 commit matches the shipped jar's
> kafka-version.properties commitId
> * KRaft quickstart: format --standalone, broker start,
> t...