Hello All, A small documentation update has been added to the Compatibility, Deprecation, and Migration Plan section.
This addresses Windowed Key Serialization and how users with custom serializer implementations could be affected. The KIP now proposes a migration plan. If you have any questions or disagreements, please reply to this email thread. Thanks all, Uladzislau Blok On Mon, Jun 15, 2026 at 6:39 AM Matthias J. Sax <[email protected]> wrote: > > Thanks for the update. LGTM. > > > On 6/14/26 9:35 AM, Uladzislau Blok wrote: > > Hello All, > > > > I have a quick update regarding KIP-1321. During the implementation > > process, I found that deprecating the header-less > > KafkaStreams#queryMetadataForKey method is inconvenient for users, as > > it would require them to implement their own headers (given that > > RecordHeaders is not part of the public API). > > > > To provide more flexibility, I have removed the deprecation for this > > method. Please let me know if you have any objections. > > > > Best regards, > > Uladzislau Blok > > > > > > On Thu, Jun 11, 2026 at 9:45 PM Uladzislau Blok <[email protected]> wrote: > >> > >> Hello All, > >> > >> Thanks to everyone for voting. I would like to mention that the KIP > >> was slightly updated to address a few recent comments. These updates > >> explicitly document a few specific cases but do not introduce any new > >> code or functional changes; therefore, a new voting thread is not > >> required. > >> > >> The vote has passed with three binding +1 votes from: > >> - Matthias J. Sax > >> - Bill Bejeck > >> - Andrew Schofield > >> > >> Thank you all for participating! > >> > >> Best regards, > >> Uladzislau Blok > >> > >> > >> On Tue, Jun 9, 2026 at 9:04 PM Andrew Schofield <[email protected]> > >> wrote: > >>> > >>> +1 (binding) > >>> > >>> On 2026/06/09 17:08:28 Bill Bejeck wrote: > >>>> +1 (binding) > >>>> > >>>> On Fri, Jun 5, 2026 at 8:59 PM Matthias J. Sax <[email protected]> wrote: > >>>> > >>>>> +1 (binding) > >>>>> > >>>>> On 6/5/26 5:20 AM, Uladzislau Blok wrote: > >>>>>> Hello All, > >>>>>> I'd like to start a voting thread for the Kafka Streams KIP-1321 > >>>>>> Headers aware StreamPartitioner. > >>>>>> This KIP continues the effort to enable header semantics in Kafka > >>>>>> Streams, which started in KIP-1271 > >>>>>> > >>>>>> Discussion thread: > >>>>>> https://lists.apache.org/thread/7y7svyp3f560fzv1bgcr893vn258cn06 > >>>>>> KIP: https://cwiki.apache.org/confluence/x/pYwmGQ > >>>>>> > >>>>>> Thanks, > >>>>>> Uladzislau Blok. > >>>>> > >>>>> > >>>> >
