Hi Andrew, Feel free to backport to 4.1.
Thanks, Mickael On Wed, Jul 2, 2025 at 4:55 PM Andrew Schofield <andrew_schofield_j...@outlook.com> wrote: > > Hi Mickael, > We have found an NPE in the group coordinator while stress testing which > should probably be fixed. > There is a chance that a topic being looked up is not present in the metadata > image > in GroupCoordinatorService.onPartitionsDeleted. This is KAFKA-19454. > > Here's the trunk PR https://github.com/apache/kafka/pull/20090. > > Let me know what you think. We can have a more targeted 4.1 PR ready in > moments. > > Thanks, > Andrew > ________________________________________ > From: Mickael Maison <mickael.mai...@gmail.com> > Sent: 01 July 2025 14:58 > To: dev@kafka.apache.org <dev@kafka.apache.org> > Subject: Re: [DISCUSS] Apache Kafka 4.1.0 release > > Hi, > > Quick update on the status of 4.1.0. > > We are down to 3 open Jiras: > - KAFKA-19221: This is fixed in trunk and 4.1. The Jira is just opened > while the backport to 4.0 is happening. > - KAFKA-19184: This is a doc update for migrating static to dynamic > quorums. The PR is under review. > - KAFKA-19397: We don't have a fix at the moment but people are > actively working on it. > > Thanks, > Mickael > > On Wed, Jun 25, 2025 at 3:41 PM Mickael Maison <mickael.mai...@gmail.com> > wrote: > > > > Hi, > > > > Today is code freeze. I've started moving unresolved tickets targeting > > 4.1.0 to 4.2.0. > > The only exceptions are for blockers, fixing flaky tests or adding > > docs for a new feature. For anything else, please ask me before > > applying it to the 4.1 branch. > > > > Thanks, > > Mickael > > > > > > On Wed, Jun 18, 2025 at 12:14 PM Mickael Maison > > <mickael.mai...@gmail.com> wrote: > > > > > > Hi Greg, > > > > > > The release plan must match what we ship! > > > So if KIP-891 has already been merged and is in 4.1, yes it should be > > > part of the release plan. > > > > > > I've added it to the release plan. > > > > > > Thanks, > > > Mickael > > > > > > On Tue, Jun 17, 2025 at 6:06 PM Greg Harris > > > <greg.har...@aiven.io.invalid> wrote: > > > > > > > > Hi Mickael, > > > > > > > > KIP-891 [1] is/was merged and feature complete before the 4.1 branch was > > > > cut. > > > > And the JIRA was resolved [2] but wasn't given a fix version (oops) so > > > > it's > > > > not currently in the Release Plan. > > > > > > > > Can I add KIP-891 to the Release Plan? > > > > > > > > Thanks, > > > > Greg > > > > > > > > [1] > > > > https://cwiki.apache.org/confluence/display/KAFKA/KIP-891%3A+Running+multiple+versions+of+Connector+plugins > > > > [2] https://issues.apache.org/jira/browse/KAFKA-14410 > > > > > > > > > > > > On Thu, Jun 12, 2025 at 11:17 AM Mickael Maison > > > > <mickael.mai...@gmail.com> > > > > wrote: > > > > > > > > > Hi Justine, > > > > > > > > > > Ack, thanks for the update. > > > > > > > > > > Thanks, > > > > > Mickael > > > > > > > > > > On Thu, Jun 12, 2025 at 6:44 PM Justine Olshan > > > > > <jols...@confluent.io.invalid> wrote: > > > > > > > > > > > > Hey Mickael, > > > > > > > > > > > > Just a head's up, I'll be picking `KAFKA-19367: Fix InitProducerId > > > > > > with > > > > > TV2 > > > > > > double-increments epoch if ongoing transaction is aborted` into 4.1. > > > > > It's a > > > > > > relatively small bug fix, and as reviewer, I'm pretty confident in > > > > > > the > > > > > > testing behind it. > > > > > > > > > > > > Thanks > > > > > > Justine > > > > > > > > > > > > On Thu, Jun 12, 2025 at 3:21 AM Mickael Maison > > > > > > <mickael.mai...@gmail.com > > > > > > > > > > > > wrote: > > > > > > > > > > > > > Hi José, > > > > > > > > > > > > > > Thanks for the update. > > > > > > > I'm not really familiar with this KIP. If you can get it reviewed > > > > > > > and > > > > > > > merged this week and think it's not too risky to merge this now, > > > > > > > go > > > > > > > ahead and cherry-pick it to 4.1. > > > > > > > > > > > > > > Thanks, > > > > > > > Mickael > > > > > > > > > > > > > > On Wed, Jun 11, 2025 at 10:02 PM José Armando García Sancio > > > > > > > <jsan...@confluent.io.invalid> wrote: > > > > > > > > > > > > > > > > Hi Mickael, > > > > > > > > > > > > > > > > Thanks for working on the release. I have a PR for faster HWM > > > > > > > > propagation for the kraft cluster metadata partition. I expect > > > > > > > > the PR > > > > > > > > to get merged this week. Can I cherry pick it to the 4.1 branch > > > > > > > > when > > > > > > > > it is merged? > > > > > > > > > > > > > > > > PR: https://github.com/apache/kafka/pull/19800 > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > > > > > On Tue, Jun 10, 2025 at 2:03 PM Mickael Maison < > > > > > mickael.mai...@gmail.com> > > > > > > > wrote: > > > > > > > > > > > > > > > > > > Hi Chia-Ping, > > > > > > > > > > > > > > > > > > There isn't anything specific to 4.1.0, same rules as usual > > > > > > > > > apply. > > > > > > > > > > > > > > > > > > After feature freeze, we shouldn't merge new major features > > > > > > > > > into > > > > > 4.1. > > > > > > > > > Stabilization fixes are fine. > > > > > > > > > There is some flexibility with minor features but always > > > > > communicate > > > > > > > > > and ask in the release thread (here). > > > > > > > > > Bug fixes can be backported especially blockers, regressions > > > > > > > > > and > > > > > > > > > dependency updates to mitigate CVEs. > > > > > > > > > > > > > > > > > > Again if you're unsure, feel free to tag me in PRs or ask > > > > > > > > > here. > > > > > > > > > > > > > > > > > > The next milestone is code freeze on May 25. > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > Mickael > > > > > > > > > > > > > > > > > > > > > > > > > > > On Tue, Jun 10, 2025 at 6:35 PM Chia-Ping Tsai > > > > > > > > > <chia7...@gmail.com > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > hi Mickael > > > > > > > > > > > > > > > > > > > > Thanks for managing the 4.1 branch. > > > > > > > > > > Are there any rules of backporting to 4.1 that we need to > > > > > > > > > > know? > > > > > > > > > > > > > > > > > > > > Best, > > > > > > > > > > Chia-Ping > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Mickael Maison <mickael.mai...@gmail.com> 於 2025年6月10日 週二 > > > > > 下午11:47寫道： > > > > > > > > > > > > > > > > > > > > > Hi, > > > > > > > > > > > > > > > > > > > > > > With the help of Infra I was able to create the new 4.1 > > > > > > > > > > > branch: > > > > > > > > > > > https://github.com/apache/kafka/tree/4.1 > > > > > > > > > > > I'll explain the issue I found in another thread. > > > > > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > Mickael > > > > > > > > > > > > > > > > > > > > > > On Tue, Jun 10, 2025 at 2:53 PM Mickael Maison < > > > > > > > mickael.mai...@gmail.com> > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > Hi, > > > > > > > > > > > > > > > > > > > > > > > > We are now past feature freeze. > > > > > > > > > > > > My plan was to cut the 4.1 branch today, but with the > > > > > > > > > > > > new > > > > > branch > > > > > > > > > > > > protection rules we set [0] I'm not able to do so at the > > > > > moment. > > > > > > > I > > > > > > > > > > > > opened a Jira against Infra [1] and hopefully that will > > > > > > > > > > > > be > > > > > sorted > > > > > > > > > > > > soon. > > > > > > > > > > > > > > > > > > > > > > > > I'll post another update once the branch is cut. > > > > > > > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > Mickael > > > > > > > > > > > > > > > > > > > > > > > > 0: https://issues.apache.org/jira/browse/INFRA-26603 > > > > > > > > > > > > 1: https://issues.apache.org/jira/browse/INFRA-26900 > > > > > > > > > > > > > > > > > > > > > > > > On Mon, Jun 2, 2025 at 10:46 AM Mickael Maison < > > > > > > > mickael.mai...@gmail.com> > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > Hi PoAn, > > > > > > > > > > > > > > > > > > > > > > > > > > Since both KIPs were accepted before the deadline I've > > > > > added > > > > > > > them to > > > > > > > > > > > > > the release plan. In the future feel free to edit the > > > > > release > > > > > > > plan > > > > > > > > > > > > > yourself. > > > > > > > > > > > > > > > > > > > > > > > > > > Note that feature freeze is this week, so the goal is > > > > > > > > > > > > > to > > > > > merge > > > > > > > all > > > > > > > > > > > > > KIP-related code by the end of the week. If that's not > > > > > > > possible let me > > > > > > > > > > > > > know. > > > > > > > > > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > > Mickael > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Mon, Jun 2, 2025 at 9:14 AM PoAn Yang < > > > > > yangp...@gmail.com> > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > Hi Mickael, > > > > > > > > > > > > > > > > > > > > > > > > > > > > May I add KIP-1101 ( > > > > > > > https://cwiki.apache.org/confluence/x/FouMEw) > > > > > > > > > > > and > > > > > > > > > > > > > > KIP-1142 > > > > > > > > > > > > > > (https://cwiki.apache.org/confluence/x/AAqWF) > > > > > to > > > > > > > release > > > > > > > > > > > plan? > > > > > > > > > > > > > > These KIPs were accepted on April 17th and April > > > > > > > > > > > > > > 29th. > > > > > I’m > > > > > > > sorry for > > > > > > > > > > > not > > > > > > > > > > > > > > adding them to the release plan when they were > > > > > > > > > > > > > > accepted. > > > > > > > > > > > > > > > > > > > > > > > > > > > > For KIP-1101, we already merged consumer group PRs. > > > > > > > Remaining PRs > > > > > > > > > > > > > > are for share / stream groups and one for > > > > > > > > > > > > > > integration > > > > > test. > > > > > > > They’re > > > > > > > > > > > all ready > > > > > > > > > > > > > > for reviewing: > > > > > > > > > > > > > > * https://github.com/apache/kafka/pull/19802 > > > > > > > > > > > > > > * https://github.com/apache/kafka/pull/19796 > > > > > > > > > > > > > > * https://github.com/apache/kafka/pull/19856 > > > > > > > > > > > > > > > > > > > > > > > > > > > > For KIP-1142, it's almost finished. One remaining > > > > > > > > > > > > > > PR is > > > > > about > > > > > > > > > > > compatibility > > > > > > > > > > > > > > of missing metric. > > > > > > > > > > > > > > * https://github.com/apache/kafka/pull/19877 > > > > > > > > > > > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > > > PoAn > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On May 14, 2025, at 6:20 PM, Mickael Maison < > > > > > > > > > > > mickael.mai...@gmail.com> wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Hi, > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Reminder that today is KIP freeze. > > > > > > > > > > > > > > > If you have a KIP that has been approved before > > > > > > > > > > > > > > > the > > > > > end of > > > > > > > the day, > > > > > > > > > > > > > > > you can add it to the 4.1.0 release plan. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > The next milestone is feature freeze on June 4. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > > > > > > Mickael > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Tue, May 13, 2025 at 6:48 PM Mickael Maison < > > > > > > > > > > > mickael.mai...@gmail.com> wrote: > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > >> Hi Kirk, > > > > > > > > > > > > > > >> Yes it was approved before KIP freeze, so feel > > > > > > > > > > > > > > >> free to > > > > > > > add it to > > > > > > > > > > > the > > > > > > > > > > > > > > >> release plan. (I would have done it now but the > > > > > > > > > > > > > > >> wiki > > > > > > > seems to be > > > > > > > > > > > down > > > > > > > > > > > > > > >> at the moment) > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > >> Hi Jose, > > > > > > > > > > > > > > >> Ack > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > >> Thanks, > > > > > > > > > > > > > > >> Mickael > > > > > > > > > > > > > > >> > > > > > > > > > > > > > > >> On Tue, May 13, 2025 at 6:17 PM José Armando > > > > > > > > > > > > > > >> García > > > > > Sancio > > > > > > > > > > > > > > >> <jsan...@confluent.io.invalid> wrote: > > > > > > > > > > > > > > >>> > > > > > > > > > > > > > > >>> HI Mickael, > > > > > > > > > > > > > > >>> > > > > > > > > > > > > > > >>> I have added "KIP-1166: Improve high-watermark > > > > > > > replication" to > > > > > > > > > > > the > > > > > > > > > > > > > > >>> 4.1.0 release wiki page. > > > > > > > > > > > > > > >>> > > > > > > > > > > > > > > >>> Thanks, > > > > > > > > > > > > > > >>> -- > > > > > > > > > > > > > > >>> -José > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > -José > > > > > > > > > > > >
