Hi all,

Thanks Wenchen for reviewing RC3 and raising the API doc issue.

Given the -1, I will cancel RC3 and prepare RC4 after the API doc fix is
merged and backported to branch-4.2. I plan to cut RC4 on Thursday.

Thanks,
Huaxin

On Tue, Jun 16, 2026 at 4:20 PM Holden Karau <[email protected]> wrote:

> Also it's Data+AI summit so I suspect a lot of folks are busy with that
> right now.
>
> On Tue, Jun 16, 2026 at 4:05 PM Wenchen Fan <[email protected]> wrote:
>
>> No open bug report for 4.2 so far, but I found an issue in the API doc:
>> https://github.com/apache/spark/pull/56551 . The generated proto java
>> classes and the new internal Types Framework ops classes are leaked into
>> the Scala API doc.
>>
>> Given we claim APIs in the API doc as public, I'm -1 to avoid releasing
>> unexpected public APIs.
>>
>> On Mon, Jun 15, 2026 at 6:38 PM huaxin gao <[email protected]>
>> wrote:
>>
>>> Hi all,
>>>
>>> The RC3 voting deadline has passed, but we have not received any votes
>>> yet.
>>>
>>> Since the previous 72-hour voting period included a weekend, I’ll keep
>>> the vote open and extend it for another 48 hours. Could community members
>>> please help review RC3 and vote when you have a chance? Binding votes from
>>> PMC members are especially needed to close the release vote.
>>>
>>> Also, SPARK-57452 <https://issues.apache.org/jira/browse/SPARK-57452>
>>> was raised to audit the 4.2 migration guide for potentially missing
>>> behavior-change notes, and it is currently marked as a blocker. Could the
>>> owners of the changes listed in SPARK-57452 please review the corresponding
>>> items and confirm whether any of them should block RC3? If you are aware of
>>> any other 4.2 behavior changes that require migration-guide updates, please
>>> also flag them.
>>>
>>> If you believe SPARK-57452 should block the release, please vote -1 and
>>> share the specific items that must be fixed before 4.2.0. Otherwise, please
>>> help verify RC3 and vote.
>>>
>>> Thanks,
>>> Huaxin
>>>
>>> On Fri, Jun 12, 2026 at 5:14 PM <[email protected]> wrote:
>>>
>>>> Please vote on releasing the following candidate as Apache Spark
>>>> version 4.2.0.
>>>>
>>>> The vote is open until Mon, 15 Jun 2026 18:14:21 PDT and passes if a
>>>> majority +1 PMC votes are cast, with
>>>> a minimum of 3 +1 votes.
>>>>
>>>> [ ] +1 Release this package as Apache Spark 4.2.0
>>>> [ ] -1 Do not release this package because ...
>>>>
>>>> To learn more about Apache Spark, please see https://spark.apache.org/
>>>>
>>>> The tag to be voted on is v4.2.0-rc3 (commit 560dc9d3c95):
>>>> https://github.com/apache/spark/tree/v4.2.0-rc3
>>>>
>>>> The release files, including signatures, digests, etc. can be found at:
>>>> https://dist.apache.org/repos/dist/dev/spark/v4.2.0-rc3-bin/
>>>>
>>>> Signatures used for Spark RCs can be found in this file:
>>>> https://downloads.apache.org/spark/KEYS
>>>>
>>>> The staging repository for this release can be found at:
>>>> https://repository.apache.org/content/repositories/orgapachespark-1523/
>>>>
>>>> The documentation corresponding to this release can be found at:
>>>> https://dist.apache.org/repos/dist/dev/spark/v4.2.0-rc3-docs/
>>>>
>>>> The list of bug fixes going into 4.2.0 can be found at the following
>>>> URL:
>>>> https://issues.apache.org/jira/projects/SPARK/versions/12356380
>>>>
>>>> FAQ
>>>>
>>>> =========================
>>>> How can I help test this release?
>>>> =========================
>>>>
>>>> If you are a Spark user, you can help us test this release by taking
>>>> an existing Spark workload and running on this release candidate, then
>>>> reporting any regressions.
>>>>
>>>> If you're working in PySpark you can set up a virtual env and install
>>>> the current RC via "pip install
>>>> https://dist.apache.org/repos/dist/dev/spark/v4.2.0-rc3-bin/pyspark-4.2.0.tar.gz
>>>> "
>>>> and see if anything important breaks.
>>>> In the Java/Scala, you can add the staging repository to your project's
>>>> resolvers and test
>>>> with the RC (make sure to clean up the artifact cache before/after so
>>>> you don't end up building with an out of date RC going forward).
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe e-mail: [email protected]
>>>>
>>>>
>
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