Do we want to wait for 4.3.0 to go out so we know we've got all of the
fixes backported from 4.3 into 4.2?

On Mon, Sep 28, 2026 at 10:39 AM huaxin gao <[email protected]> wrote:

> +1
>
> I checked:
>
> - The tag v4.2.1-rc1 matches the commit in the vote email (72c18760854)
>   and is contained in branch-4.2.
> - The version is 4.2.1 in both pom.xml and python/pyspark/version.py.
> - All expected artifacts are present (source, binary distributions,
>   pyspark/pyspark_client/pyspark_connect, SparkR), each with .asc and
>   .sha512.
> - Verified the SHA512 checksum of spark-4.2.1.tgz: OK.
> - Verified the GPG signature of spark-4.2.1.tgz: good signature from
>   "Szehon Ho (CODE SIGNING KEY) <[email protected]>".
>
> One minor note, not a blocker. The RC is signed with a new key:
>
>   pub   ed25519 2026-09-25 [SC]
>         9442 A261 0B63 B3F6 1860  285F 43F1 222E 5362 CCF5
>   uid   Szehon Ho (CODE SIGNING KEY) <[email protected]>
>
> That key is in dist/dev/spark/KEYS, and the signature verifies correctly
> against it. However, it is not yet in
> https://downloads.apache.org/spark/KEYS,
> which is the file linked in the vote email. Could you append the new key
> to the
> release KEYS?
>
> Thanks Szehon!
>
> On Mon, Sep 28, 2026 at 2:21 AM <[email protected]> wrote:
>
>> Please vote on releasing the following candidate as Apache Spark version
>> 4.2.1.
>>
>> The vote is open until Thu, 01 Oct 2026 03:11:20 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 4.2.1
>> [ ] -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 v4.2.1-rc1 (commit 72c18760854):
>> https://github.com/apache/spark/tree/v4.2.1-rc1
>>
>> The release files, including signatures, digests, etc. can be found at:
>> https://dist.apache.org/repos/dist/dev/spark/v4.2.1-rc1-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-1531/
>>
>> The documentation corresponding to this release can be found at:
>> https://dist.apache.org/repos/dist/dev/spark/v4.2.1-rc1-docs/
>>
>> The list of bug fixes going into 4.2.1 can be found at the following URL:
>> https://issues.apache.org/jira/projects/SPARK/versions/12357191
>>
>> 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/v4.2.1-rc1-bin/pyspark-4.2.1.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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