Hi Christo, I'd like to give an update on progress for KIP-932 and KIP-1226. Today has been challenging because of build failures on account of an OOM in the client unit tests. We have now identified the troublesome commit and just merged a fix.
PRs for 3 of the remaining 5 subtasks for KIP-932 (https://issues.apache.org/jira/browse/KAFKA-16092) are ready but the build problems thwarted their completion. This is one code fix, a PR to mark interfaces as stable, and documentation. That leaves 1 subtask (https://issues.apache.org/jira/browse/KAFKA-17541) which should complete this week, and another (https://issues.apache.org/jira/browse/KAFKA-19865) which is documenting metrics. The final task for KIP-1226 has an approved PR which again has been hampered today by the builds. I wonder whether you could postpone cutting the release branch by one day until the morning of 21st. If not, we can cherry-pick, but I thought I'd ask. Thanks, Andrew On 2025/11/19 11:28:58 David Jacot wrote: > Hi Chisto, > > I have added KIP-1224 to the release plan because we completed the > implementation. > > Best, > David > > On Wed, Nov 19, 2025 at 11:06 AM Lucas Brutschy > <[email protected]> wrote: > > > Hi Christo, > > > > I have added KIP-1071 to the release plan. After EA in 4.1, this > > release will mark GA (stable & production-ready) for a limited feature > > set. We will add details to the Kafka Streams upgrade guide. > > > > Thanks, > > Lucas > > > > On Tue, Nov 18, 2025 at 2:44 PM Christo Lolov <[email protected]> > > wrote: > > > > > > Heya Andrew, > > > > > > Thanks a lot for adding the KIPs. > > > > > > On a separate note, tomorrow (19th of November) is the feature freeze > > > date. I will wait until the morning of the 20th to cut the release > > > branch and from then on any necessary commits should be cherry-picked > > > to that branch. > > > > > > Let me know if the freeze date needs adjustment! > > > > > > Best, > > > Christo > > > > > > On Tue, 18 Nov 2025 at 12:23, Andrew Schofield <[email protected]> > > wrote: > > > > > > > > Hi Christo, > > > > I've added a few KIPs to the 4.2 release plan. > > > > > > > > KIP-932 (Queues for Kafka) is planning to GA in 4.2. We have one PR > > still in progress and a few reviews. Documentation will extend past the > > feature freeze. > > > > KIP-1226 (Share group lag) is complete apart from one PR for > > integration tests which is under review and almost ready. > > > > KIP-1227 (Expose rack ID in member description) which is complete and > > was missing from the list. > > > > > > > > Thanks, > > > > Andrew > > > > > > > > On 2025/11/05 15:12:18 Christo Lolov wrote: > > > > > Heya! > > > > > > > > > > Sure, I will add them to the release plan. Let me know if there are > > problems with the implementation! > > > > > > > > > > Best, > > > > > Christo > > > > > > > > > > > On 4 Nov 2025, at 14:34, Chia-Ping Tsai <[email protected]> > > wrote: > > > > > > > > > > > > hi Christo > > > > > > > > > > > > Could we include KIP-1196 and KIP-1231 in the 4.2 release? Their > > implementations are simple, so I believe they can be completed in time for > > the feature freeze. > > > > > > > > > > > > Best, > > > > > > Chia-Ping > > > > > > > > > > > >> On 2025/11/03 09:39:48 Christo Lolov wrote: > > > > > >> Heya Justine, > > > > > >> > > > > > >> Sure, I will include it in the release plan! Let me know if you > > encounter issues with implementation or reviews! > > > > > >> > > > > > >> Best, > > > > > >> Christo > > > > > >> > > > > > >>>> On 30 Oct 2025, at 16:27, Justine Olshan > > <[email protected]> wrote: > > > > > >>> > > > > > >>> Hey Christo > > > > > >>> I was wondering if we could include KIP-1228 in the 4.2 release. > > We have > > > > > >>> the required votes -- we just didn't officially close the vote > > yet. > > > > > >>> I think we should also be able to implement it in time for the > > feature > > > > > >>> freeze. What do you think? > > > > > >>> > > > > > >>> Thanks, > > > > > >>> Justine > > > > > >>> > > > > > >>>> On Thu, Oct 30, 2025 at 12:28 AM Christo Lolov < > > [email protected]> > > > > > >>>> wrote: > > > > > >>>> > > > > > >>>> Hello! > > > > > >>>> > > > > > >>>> We have now passed the KIP freeze date for 4.2.0. The next goal > > is the > > > > > >>>> feature freeze on the 19th of November! > > > > > >>>> > > > > > >>>> Feel free to reachout on this thread if your changes are not > > getting > > > > > >>>> traction to meet that date! > > > > > >>>> > > > > > >>>> Best, > > > > > >>>> Christo > > > > > >>>> > > > > > >>>>> On Wed, 22 Oct 2025 at 11:16, Christo Lolov < > > [email protected]> > > > > > >>>>> wrote: > > > > > >>>>> > > > > > >>>>> Hello! > > > > > >>>>> > > > > > >>>>> This is to bump the 4.2.0 thread to the top of the mailing > > list! > > > > > >>>>> > > > > > >>>>> The KIP freeze date is 1 week from today on the 29th of > > October. > > > > > >>>>> Please ensure that you have the required number of binding > > votes for > > > > > >>>>> your KIP by that date if you would like it included in 4.2.0. > > > > > >>>>> > > > > > >>>>> Best, > > > > > >>>>> Christo > > > > > >>>>> > > > > > >>>>> On Thu, 2 Oct 2025 at 15:08, Mickael Maison < > > [email protected]> > > > > > >>>> wrote: > > > > > >>>>>> > > > > > >>>>>> Hi, > > > > > >>>>>> > > > > > >>>>>> I think moving code freeze to December 10 makes sense. > > > > > >>>>>> Many people will be off the last 2 weeks of December, so it's > > best to > > > > > >>>>>> not have deadlines then. > > > > > >>>>>> > > > > > >>>>>> Thanks, > > > > > >>>>>> Mickael > > > > > >>>>>> > > > > > >>>>>> On Thu, Oct 2, 2025 at 3:49 PM Christo Lolov < > > [email protected]> > > > > > >>>> wrote: > > > > > >>>>>>> > > > > > >>>>>>> Hello! > > > > > >>>>>>> > > > > > >>>>>>> Thanks for the review! > > > > > >>>>>>> > > > > > >>>>>>> I am okay with pulling all dates by 2 weeks earlier in time > > (barring > > > > > >>>> the > > > > > >>>>>>> 7th of January one). If there are no objections to the new > > dates I > > > > > >>>> will > > > > > >>>>>>> update them in the plan tomorrow! > > > > > >>>>>>> > > > > > >>>>>>> Best, > > > > > >>>>>>> Christo > > > > > >>>>>>> > > > > > >>>>>>> On Thu, 2 Oct 2025 at 07:14, Ismael Juma <[email protected]> > > wrote: > > > > > >>>>>>> > > > > > >>>>>>>> Hi Christo, > > > > > >>>>>>>> > > > > > >>>>>>>> Thanks for managing the release and for the proposed > > release plan. > > > > > >>>>>>>> > > > > > >>>>>>>> Given our desire to ship every 4 months, I think the > > proposed > > > > > >>>> dates should > > > > > >>>>>>>> be shifted a bit. The original plan was for 4.1 to ship in > > mid > > > > > >>>> July and for > > > > > >>>>>>>> 4.2 to ship in mid November. The former eventually shipped > > on > > > > > >>>> September 2nd > > > > > >>>>>>>> and with the current plan would probably result in 4.2 > > shipping in > > > > > >>>> late > > > > > >>>>>>>> January/early February. Given where we are, I would suggest > > > > > >>>> something like: > > > > > >>>>>>>> > > > > > >>>>>>>> KIP Freeze: October 29 (Wednesday) > > > > > >>>>>>>> Feature Freeze: November 19 (Wednesday) > > > > > >>>>>>>> Code Freeze: December 10 (Wednesday) > > > > > >>>>>>>> At least four weeks of stabilization will follow Code Freeze > > > > > >>>> (taking > > > > > >>>>>>>> holidays into account), meaning we expect to release no > > earlier > > > > > >>>> than > > > > > >>>>>>>> January 7 2026. > > > > > >>>>>>>> > > > > > >>>>>>>> Ideally, we'd get RC0 out before the holiday break and then > > > > > >>>> complete the > > > > > >>>>>>>> release by early/mid January. > > > > > >>>>>>>> > > > > > >>>>>>>> Thoughts? > > > > > >>>>>>>> > > > > > >>>>>>>> Ismael > > > > > >>>>>>>> > > > > > >>>>>>>> On Tue, Sep 30, 2025 at 6:09 AM Christo Lolov < > > > > > >>>> [email protected]> > > > > > >>>>>>>> wrote: > > > > > >>>>>>>> > > > > > >>>>>>>>> Hello! > > > > > >>>>>>>>> > > > > > >>>>>>>>> I would like to volunteer to be the release manager for the > > > > > >>>> Apache Kafka > > > > > >>>>>>>>> 4.2.0 release. > > > > > >>>>>>>>> > > > > > >>>>>>>>> If no one has any objections, you can find a proposed > > release > > > > > >>>> plan at > > > > > >>>>>>>>> > > > > > >>>> > > https://cwiki.apache.org/confluence/display/KAFKA/Release+Plan+4.2.0. > > > > > >>>>>>>>> > > > > > >>>>>>>>> Thanks, > > > > > >>>>>>>>> Christo > > > > > >>>>>>>>> > > > > > >>>>>>>> > > > > > >>>> > > > > > >> > > > > > > > >
