Hi Luke, Thanks for the heads up. I replied in the PR associated with the discussion. I'll copy my reply here too so everyone is aware:
I think it's fine to merge this as this renaming was accidental and unwanted. However we should probably add a note in notable changes in 4.0.0 to indicate the name has changed. I'm also happy to have this backported to 4.1, with also a note in the 4.1 notable changes indicating this mistake has been fixed This will require doing another RC, so we'll be able to pick up the few doc changes we were working on in parallel of the release. So closing this vote, I'll start working on another RC once these PRs are merged. Thanks, Mickael On Mon, Aug 4, 2025 at 4:29 AM Luke Chen <show...@gmail.com> wrote: > > Hi Mickael, > > Could you take a look at this issue, and see if we want to include this > patch into v4.1.0? > https://lists.apache.org/thread/83kqzk823xcxfj5w2t68sdftmo7t0bpz > > Thank you. > Luke > > On Sat, Aug 2, 2025 at 1:50 AM Jun Rao <j...@confluent.io.invalid> wrote: > > > I chatted with Andrew Schofield. So, share is not required in > > group.coordinator.rebalance.protocols to enable share consumers. One just > > needs to set share.version. > > > > Thanks, > > > > Jun > > > > On Fri, Aug 1, 2025 at 6:09 AM Paolo Patierno <paolo.patie...@gmail.com> > > wrote: > > > > > Hi Jun, > > > yes I think it's clearer now. Thanks. > > > > > > Paolo > > > > > > On Thu, 31 Jul 2025 at 22:31, Jun Rao <j...@confluent.io.invalid> wrote: > > > > > > > Hi, Paolo, > > > > > > > > Thanks for the context. Do you feel that the doc change addresses your > > > > concern? > > > > > > > > Jun > > > > > > > > On Thu, Jul 31, 2025 at 5:13 AM Paolo Patierno < > > paolo.patie...@gmail.com > > > > > > > > wrote: > > > > > > > > > Hi Jun, > > > > > thanks ... that PR came after a long discussion we had in the Strimzi > > > > > community > > > https://github.com/strimzi/strimzi-kafka-operator/issues/11685 > > > > > when found out about this behaviour ;-) > > > > > > > > > > Thanks, > > > > > Paolo > > > > > > > > > > On Wed, 30 Jul 2025 at 18:55, Jun Rao <j...@confluent.io.invalid> > > > wrote: > > > > > > > > > > > Hi, Paolo, > > > > > > > > > > > > There is a PR https://github.com/apache/kafka/pull/20268 for the > > doc > > > > > > change > > > > > > for ELR. > > > > > > > > > > > > Hi, Christo, > > > > > > > > > > > > Group rebalance is designed so that each partition is only consumed > > > by > > > > a > > > > > > single consumer instance at a time. Share consumer by design > > allows a > > > > > > single partition to be consumed by more than one consumer at any > > > time. > > > > > So, > > > > > > it doesn't need group.coordinator.rebalance.protocols. > > > > > > > > > > > > Thanks, > > > > > > > > > > > > Jun > > > > > > > > > > > > On Wed, Jul 30, 2025 at 6:14 AM Christo Lolov < > > > christolo...@gmail.com> > > > > > > wrote: > > > > > > > > > > > > > Heya! > > > > > > > > > > > > > > I tested creating a cluster using the binary tgz. Furthermore, I > > > went > > > > > > > through the enabling, producing, consuming, and disabling of > > > queues. > > > > > > > Lastly, I carried out the same steps on both Docker images. > > > > > > > > > > > > > > I went through the JavaDocs and clicked on links to confirm they > > > > work. > > > > > > > > > > > > > > I chose artifacts at random and confirmed that they are signed. > > > > > > > > > > > > > > I went through the release notes, and the OAuth jwt-bearer KIP is > > > > > > > classified as an improvement and not as a new feature. I am > > > uncertain > > > > > > > whether we have a standardised way of differentiating between > > them > > > > and > > > > > > > whether it is up to the KIP-implementer to correctly classify the > > > > JIRA > > > > > > > ticket. Either way, I don’t think this is a blocker. > > > > > > > > > > > > > > I cross-checked the upgrade.html with what is currently on the > > > > > > > kafka.apache.org website. It appears that in > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://github.com/apache/kafka-site/blob/abd4e2ac9d4da0c7e3c54203925725c9e2da653d/41/upgrade.html > > > > > > > (part of https://github.com/apache/kafka-site/pull/702/files) we > > > > have > > > > > > > upgrade notes for 4.1.0, 4.0.0 and 3.9.0 while on the website we > > > have > > > > > > > upgrade notes for 4.0.0 and 3.9.0. I suspect we mention only the > > > > latest > > > > > > > version and give a link to the previous one. In the latest PR, > > > > > however, I > > > > > > > believe we have 3 sections instead of just 2. > > > > > > > > > > > > > > It is a bit difficult to see whether the new addition to the > > > default > > > > of > > > > > > > group.coordinator.rebalance.protocols i.e. streams, is part of > > the > > > > > > > documentation. > > > > > > > > > > > > > > Along the same lines, is the share value needed for the same > > > > > > configuration? > > > > > > > There is no mention of it in > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/KAFKA/Queues+for+Kafka+%28KIP-932%29+-+Preview+Release+Notes > > > > > > > and I am able to produce and consume using the CLI tools without > > > it? > > > > > > > > > > > > > > I don't feel that my documentation-related queries are a blocker. > > > As > > > > > > > such +1 (binding) for this release candidate from me :) > > > > > > > > > > > > > > Best, > > > > > > > Christo > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Wed, 30 Jul 2025 at 08:08, Paolo Patierno < > > > > paolo.patie...@gmail.com > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > Of course, here my +1 (non binding) for the release :-) > > > > > > > > > > > > > > > > On Wed, 30 Jul 2025 at 08:15, Paolo Patierno < > > > > > paolo.patie...@gmail.com > > > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > HI, > > > > > > > > > within the Strimzi project we ran all the regression tests > > and > > > > > > > everything > > > > > > > > > seems to be fine. > > > > > > > > > We had to deal with a behavioural change in Kafka 4.1. It > > seems > > > > > that > > > > > > > now > > > > > > > > > ELR feature is enabled by default (while it was disabled in > > > 4.0) > > > > > and > > > > > > > when > > > > > > > > > it's enabled, you cannot change the min ISR broker > > > configuration > > > > > > (but, > > > > > > > if > > > > > > > > > enabled, it was the same with 4.0). > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > Paolo Patierno > > > > > > > > > > > > > > > > > > On Mon, 28 Jul 2025 at 20:48, Mickael Maison < > > > > > > mickael.mai...@gmail.com > > > > > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > >> Hi, > > > > > > > > >> > > > > > > > > >> Quick update about the system tests. > > > > > > > > >> > > > > > > > > >> Streams: > > > > > > > > >> If I make the change suggested by Matthias, all the Streams > > > > tests > > > > > > > pass. > > > > > > > > >> So we need to update the release process to not run into > > this > > > > > issue. > > > > > > > > >> Either we don't only merge the RC tags into the release > > branch > > > > > after > > > > > > > > >> the vote, or we update the logic to not expect a SNAPSHOT > > > > version. > > > > > > > > >> > > > > > > > > >> Core: > > > > > > > > >> While trying to debug > > > > > > > > >> network_degrade_test.test_rate,name=rate-1000-latency-50, I > > > > > noticed > > > > > > it > > > > > > > > >> is also failing in my environment with 4.0.0. > > > > > > > > >> Also the test was already flaky when introduced, see > > > > > > > > >> > > > > > https://github.com/apache/kafka/pull/18247#issuecomment-2550372486, > > > > > > > so > > > > > > > > >> I think we can consider not a blocker. > > > > > > > > >> > > > > > > > > >> Thanks, > > > > > > > > >> Mickael > > > > > > > > >> > > > > > > > > >> On Sat, Jul 26, 2025 at 12:24 PM Andrew Schofield > > > > > > > > >> <andrew_schofield_j...@outlook.com> wrote: > > > > > > > > >> > > > > > > > > > >> > Hi, > > > > > > > > >> > I downloaded and tested 4.1.0 RC1. > > > > > > > > >> > > > > > > > > > >> > I successfully checked the enablement and administration > > of > > > > the > > > > > > > share > > > > > > > > >> > group and streams groups features. > > > > > > > > >> > > > > > > > > > >> > I also downloaded the documentation from the pending > > > > kafka-site > > > > > > PR. > > > > > > > > >> > I observe that it was necessary to manually change the > > > > #include > > > > > > > > >> > directives from 40 to 41 like this: > > > > > > > > >> > > > > > > > > > >> > <!--#include virtual="41/documentation.html" --> > > > > > > > > >> > > > > > > > > > >> > Once I'd done that, I could see the 4.1 documentation as > > > > > expected. > > > > > > > > >> > I guess that's part of the actual release process. > > > > > > > > >> > > > > > > > > > >> > Also checked the javadoc and that looks OK to me. > > > > > > > > >> > > > > > > > > > >> > +1 (non-binding) > > > > > > > > >> > > > > > > > > > >> > Thanks, > > > > > > > > >> > Andrew > > > > > > > > >> > > > > > > > > > >> > ________________________________________ > > > > > > > > >> > From: Kuan-Po Tseng <brandb...@gmail.com> > > > > > > > > >> > Sent: 22 July 2025 16:43 > > > > > > > > >> > To: dev@kafka.apache.org <dev@kafka.apache.org> > > > > > > > > >> > Subject: Re: [VOTE] 4.1.0 RC1 > > > > > > > > >> > > > > > > > > > >> > Hi folks, > > > > > > > > >> > > > > > > > > > >> > I tested upgrading Kafka from both 3.7.2 and 3.8.1 to > > 4.1.0 > > > > and > > > > > > > > >> everything > > > > > > > > >> > seems good: > > > > > > > > >> > - Three-node KRaft cluster; verified produce/consume > > records > > > > > > worked > > > > > > > > >> > correctly using `kafka-producer-perf-test.sh` and > > > > > > > > >> > `kafka-console-consumer.sh` before and after each server > > > > > upgrade. > > > > > > > > >> > - After upgrading one node to 4.1.0, saw repeated `The > > node > > > > does > > > > > > not > > > > > > > > >> > support UPDATE_RAFT_VOTER` logs — expected since server > > with > > > > > older > > > > > > > > >> versions > > > > > > > > >> > don't support this API. > > > > > > > > >> > - Once all nodes were upgraded, the message disappeared. > > > > > > Everything > > > > > > > > >> worked > > > > > > > > >> > as expected. > > > > > > > > >> > > > > > > > > > >> > +1 (non-binding) > > > > > > > > >> > > > > > > > > > >> > Best, > > > > > > > > >> > Kuan-Po Tseng > > > > > > > > >> > > > > > > > > > >> > On Tue, Jul 22, 2025 at 11:03 PM Chia-Ping Tsai < > > > > > > chia7...@gmail.com > > > > > > > > > > > > > > > > >> wrote: > > > > > > > > >> > > > > > > > > > >> > > hi > > > > > > > > >> > > If anyone wants to test 4.1.0-RC1 without the backport > > > fix, > > > > > > please > > > > > > > > >> simply > > > > > > > > >> > > configure the jdk_version to use another image. For > > > example: > > > > > > > > >> > > > > > > > > > > >> > > jdk_version="openjdk:17-bullseye" /bin/bash > > > > > > > > tests/docker/run_tests.sh > > > > > > > > >> > > > > > > > > > > >> > > Best, > > > > > > > > >> > > Chia-Ping > > > > > > > > >> > > > > > > > > > > >> > > Josep Prat <josep.p...@aiven.io.invalid> 於 2025年7月22日 > > 週二 > > > > > > > 下午10:56寫道： > > > > > > > > >> > > > > > > > > > > >> > > > Hi Mickael, > > > > > > > > >> > > > I don't think we need a new RC just because of these > > > > files. > > > > > > > > >> Technically > > > > > > > > >> > > > speaking these files are part of the source tarball > > > (which > > > > > we > > > > > > > > >> release), > > > > > > > > >> > > but > > > > > > > > >> > > > as they are test files, I wouldn't consider them as a > > > > > blocker > > > > > > > that > > > > > > > > >> would > > > > > > > > >> > > > grant a new RC. > > > > > > > > >> > > > > > > > > > > > >> > > > Best, > > > > > > > > >> > > > > > > > > > > > >> > > > On Tue, Jul 22, 2025 at 4:51 PM Mickael Maison < > > > > > > > > >> mickael.mai...@gmail.com > > > > > > > > >> > > > > > > > > > > > >> > > > wrote: > > > > > > > > >> > > > > > > > > > > > >> > > > > Hi, > > > > > > > > >> > > > > > > > > > > > > >> > > > > Quick update regarding the system tests. My > > > environment > > > > is > > > > > > > back > > > > > > > > >> but > > > > > > > > >> > > > > now we're hitting > > > > > > > > >> https://issues.apache.org/jira/browse/KAFKA-19501. > > > > > > > > >> > > > > > > > > > > > > >> > > > > Debian buster which is used in the system tests is > > out > > > > of > > > > > > > > support > > > > > > > > >> and > > > > > > > > >> > > > > it's apt repository has now been archived. It worked > > > > till > > > > > > last > > > > > > > > >> week > > > > > > > > >> > > > > but now it's gone so we get an error when building > > the > > > > > > Docker > > > > > > > > >> image. > > > > > > > > >> > > > > We had only updated trunk to use bullseye. I've just > > > > > > > backported > > > > > > > > >> the > > > > > > > > >> > > > > fix to 4.1: > > > > > > > > >> > > > > > > > > > > > > >> > > > > > > > > > > > >> > > > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://github.com/apache/kafka/commit/d5a3acda897890379edb8819f15b144fcea564b0 > > > > > > > > >> > > > > > > > > > > > > >> > > > > The fix is only in tests/docker/Dockerfile and > > > > > > > > >> tests/docker/ducker-ak. > > > > > > > > >> > > > > My understanding is that these files are not part of > > > any > > > > > of > > > > > > > the > > > > > > > > >> > > > > release artifacts. > > > > > > > > >> > > > > So I'm considering keeping the RC1 artifacts and > > > running > > > > > the > > > > > > > > >> system > > > > > > > > >> > > > > tests with the fix. > > > > > > > > >> > > > > > > > > > > > > >> > > > > Let me know if my understand is incorrect, or if > > you'd > > > > > > prefer > > > > > > > > >> building > > > > > > > > >> > > > > a new RC regardless. Obviously if we find issues > > with > > > > RC1, > > > > > > > we'll > > > > > > > > >> do > > > > > > > > >> > > > > another RC anyway. > > > > > > > > >> > > > > > > > > > > > > >> > > > > Thanks, > > > > > > > > >> > > > > Mickael > > > > > > > > >> > > > > > > > > > > > > >> > > > > > > > > > > > > >> > > > > > > > > > > > > >> > > > > On Mon, Jul 21, 2025 at 5:04 PM Mickael Maison < > > > > > > > > >> > > mickael.mai...@gmail.com > > > > > > > > >> > > > > > > > > > > > > >> > > > > wrote: > > > > > > > > >> > > > > > > > > > > > > > >> > > > > > Hello Kafka users, developers and > > client-developers, > > > > > > > > >> > > > > > > > > > > > > > >> > > > > > This is the second 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-rc1/RELEASE_NOTES.html > > > > > > > > >> > > > > > > > > > > > > > >> > > > > > *** Please download, test and vote by Friday July > > > 25. > > > > > > > > >> > > > > > > > > > > > > > >> > > > > > 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-rc1/ > > > > > > > > >> > > > > > > > > > > > > > >> > > > > > * Docker release artifacts to be voted upon: > > > > > > > > >> > > > > > apache/kafka:4.1.0-rc1 > > > > > > > > >> > > > > > apache/kafka-native:4.1.0-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/4.1.0-rc1/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-rc1 > > > > > > > > >> > > > > > > > > > > > > > >> > > > > > * Documentation: > > > > > > > > >> > > > > > https://kafka.apache.org/41/documentation.html > > > > > > > > >> > > > > > PR (https://github.com/apache/kafka-site/pull/702 > > ) > > > is > > > > > not > > > > > > > > >> merged yet > > > > > > > > >> > > > > > > > > > > > > > >> > > > > > * Protocol: > > > > > > > > >> > > > > > https://kafka.apache.org/41/protocol.html > > > > > > > > >> > > > > > PR (https://github.com/apache/kafka-site/pull/702 > > ) > > > is > > > > > not > > > > > > > > >> merged yet > > > > > > > > >> > > > > > > > > > > > > > >> > > > > > * Successful CI builds for the 4.1 branch: > > > > > > > > >> > > > > > Unit/integration tests: > > > > > > > > >> > > > > > > > > https://github.com/apache/kafka/actions/runs/16415760777 > > > > > > > > >> > > > > > System tests: The environment I use for running > > the > > > > > system > > > > > > > > >> tests is > > > > > > > > >> > > > > > under maintenance. If someone can run the system > > > > tests, > > > > > go > > > > > > > > >> ahead. > > > > > > > > >> > > > > > Otherwise I'll send an update once I'm able to run > > > > them. > > > > > > > > >> > > > > > > > > > > > > > >> > > > > > * Successful Docker Image Github Actions Pipeline > > > for > > > > > 4.1 > > > > > > > > >> branch: > > > > > > > > >> > > > > > Docker Build Test Pipeline (JVM): > > > > > > > > >> > > > > > > > > > > https://github.com/apache/kafka/actions/runs/16415783067 > > > > > > > > >> > > > > > Docker Build Test Pipeline (Native): > > > > > > > > >> > > > > > > > > > > https://github.com/apache/kafka/actions/runs/16415786103 > > > > > > > > >> > > > > > > > > > > > > > >> > > > > > Thanks, > > > > > > > > >> > > > > > Mickael > > > > > > > > >> > > > > > > > > > > > > >> > > > > > > > > > > > >> > > > > > > > > > > > >> > > > -- > > > > > > > > >> > > > [image: Aiven] <https://www.aiven.io/> > > > > > > > > >> > > > > > > > > > > > >> > > > *Josep Prat* > > > > > > > > >> > > > Sr. Engineering Director, Streaming Services, *Aiven* > > > > > > > > >> > > > josep.p...@aiven.io | +491715557497 > > > > > > > > >> > > > aiven.io <https://www.aiven.io/> | < > > > > > > > > >> > > https://www.facebook.com/aivencloud > > > > > > > > >> > > > > > > > > > > > > >> > > > <https://www.linkedin.com/company/aiven/> < > > > > > > > > >> > > > https://twitter.com/aiven_io> > > > > > > > > >> > > > *Aiven Deutschland GmbH* > > > > > > > > >> > > > Alexanderufer 3-7, 10117 Berlin > > > > > > > > >> > > > > > > > > > > > >> > > > Geschäftsführer: Oskari Saarenmaa, Hannu Valtonen, > > > > > > > > >> > > > > > > > > > > > >> > > > Kenneth Chen > > > > > > > > >> > > > Amtsgericht Charlottenburg, HRB 209739 B > > > > > > > > >> > > > > > > > > > > > >> > > > > > > > > > > >> > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > > Paolo Patierno > > > > > > > > > > > > > > > > > > *Senior Principal Software Engineer @ IBM**CNCF Ambassador* > > > > > > > > > > > > > > > > > > Twitter : @ppatierno <http://twitter.com/ppatierno> > > > > > > > > > Linkedin : paolopatierno < > > > > http://it.linkedin.com/in/paolopatierno> > > > > > > > > > GitHub : ppatierno <https://github.com/ppatierno> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > Paolo Patierno > > > > > > > > > > > > > > > > *Senior Principal Software Engineer @ IBM**CNCF Ambassador* > > > > > > > > > > > > > > > > Twitter : @ppatierno <http://twitter.com/ppatierno> > > > > > > > > Linkedin : paolopatierno < > > > http://it.linkedin.com/in/paolopatierno> > > > > > > > > GitHub : ppatierno <https://github.com/ppatierno> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > Paolo Patierno > > > > > > > > > > *Senior Principal Software Engineer @ IBM**CNCF Ambassador* > > > > > > > > > > Twitter : @ppatierno <http://twitter.com/ppatierno> > > > > > Linkedin : paolopatierno <http://it.linkedin.com/in/paolopatierno> > > > > > GitHub : ppatierno <https://github.com/ppatierno> > > > > > > > > > > > > > > > > > > -- > > > Paolo Patierno > > > > > > *Senior Principal Software Engineer @ IBM**CNCF Ambassador* > > > > > > Twitter : @ppatierno <http://twitter.com/ppatierno> > > > Linkedin : paolopatierno <http://it.linkedin.com/in/paolopatierno> > > > GitHub : ppatierno <https://github.com/ppatierno> > > > > >
