Heya Matthias, I have no issue with creating a new RC once the solution is in. The issue does sound critical enough to be fixed given that the previous method was removed.
Best, Christo On Wed, 3 Sept 2025 at 17:58, Matthias J. Sax <mj...@apache.org> wrote: > Hello, > > I hate to be the messenger (again), but we just found another critical > bug in Kafka Streams: https://issues.apache.org/jira/browse/KAFKA-19668 > > This one is a little bit more tricky, as it is technically not a > regression, ie, the issue exists since AK 3.3.0 release. However, with > AK 4.0.0 the problem become more real. Background: > > In AK 3.3.0 we added `processValues()` function (which has a bug we want > to fix now). The idea was, that `processValues()` would replace > `transformValues()` and we deprecated `transformValues()` in the same > release (AK 3.3). > > However, we don't know how many people actually migrated from > `transfromValues()` to `processValues()` in 3.x releases. With 4.0.0 > however, we did finally remove `transformValues()`, and thus users of > `transformValues()` are now forced to make the migration. > > Hence, we see it as critical issue for 4.x releases, and would like to > get a bug-fix included into 4.0.1. > > I am currently working on a PR (will open it later today, it's > technically a one-liner fix), but wanted to get this message out asap, > to assess how we think about this problem, and if we should get a new > RC? Getting a new RC might be simplest (even if the bug is not a > regression), instead of doing a 4.0.2 bug-fix release as follow up. > > Thoughts? > > Thanks a lot, > -Matthias > > > On 9/3/25 8:14 AM, Christo Lolov wrote: > > Hello! > > > > Thank you everyone for carrying out checks and pointing out misses on my > > side! > > > > I have opened 2 PRs against the asf-site repository: > > One contains the Javadocs as per RC1 - > > https://github.com/apache/kafka-site/pull/718 > > The other contains the site-docs as per RC1 - > > https://github.com/apache/kafka-site/pull/719 > > > > I noticed that on the site-docs there is a big diff generated for the > > protocol_messages.html, but on a spot-check these changes are part of > Kafka > > since the 4.0.0 release. Happy to correct any deficiencies on my side if > I > > am overlooking something obvious. > > > > Thanks once again for all the help! > > > > Best, > > Christo > > > > On Wed, 3 Sept 2025 at 15:19, Hong-Yi Chen <apala...@gmail.com> wrote: > > > >> Hi Christo, > >> > >> I verified 4.0.1-rc1 as follows: > >> > >> - Built and ran all unit and integration tests from the source tarball > >> (OpenJDK 23 Zulu) > >> - Verified basic produce and consume functionality > >> - Verified signatures and checksums of the downloaded artifacts > >> > >> +1 (non-binding) > >> > >> Thanks for the release! > >> Hong-Yi Chen > >> > >> Christo Lolov <christolo...@gmail.com> 於 2025年8月19日 週二 下午11:43寫道： > >> > >>> Hello Kafka users, developers and client-developers, > >>> > >>> This is the second candidate for release of Apache Kafka 4.0.1. > >>> > >>> Since this is a patch version it contains the bug fixes outlined in the > >>> release notes below! > >>> > >>> Release notes for the 4.0.1 release: > >>> > >> > https://dist.apache.org/repos/dist/dev/kafka/4.0.1-rc1/RELEASE_NOTES.html > >>> > >>> *** Please download, test and vote by Tuesday August 26. > >>> > >>> 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/4.0.1-rc1/ > >>> > >>> * Docker release artifacts to be voted upon: > >>> apache/kafka:4.0.1-rc1 > >>> apache/kafka-native:4.0.1-rc1 > >>> > >>> * 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/4.0.1-rc1/javadoc/ > >>> > >>> * Tag to be voted upon (off 4.0 branch) is the 4.0.1 tag: > >>> https://github.com/apache/kafka/releases/tag/4.0.1-rc1 > >>> > >>> * Successful CI builds for the 4.0 branch: > >>> Unit/integration tests: > >>> https://github.com/apache/kafka/actions/runs/17041863563 > >>> > >>> * Successful Docker Image Github Actions Pipeline for 4.0 branch: > >>> Docker Build Test Pipeline (JVM): > >>> https://github.com/apache/kafka/actions/runs/17068524479 > >>> Docker Build Test Pipeline (Native): > >>> https://github.com/apache/kafka/actions/runs/17068533707 > >>> > >>> Thanks, > >>> Christo > >>> > >> > > > >
