Hi, There have been a couple of things found on verification which are not a release blocker. The Windows source verification job failed on CI [1] due to an issue compiling on MSVC with the latest simdjson on conda (5.0.1) [2]. See more info on the issue but we could either use bundled simdjson or pin a lower simdjson version on the conda environment. The Wheels binary verification jobs fail on conda due to Python 3.15 not being available there yet, Py3.15 issued a RC3 instead of the official release which we expected to be ready. As a workaround we can add a patch to the verification script to use Py3.15 RC channel to verify the 3.15 wheels. The proposed patch has been tested as seen on the Verification PR here [3].
Regards, Raúl [1] https://github.com/ursacomputing/crossbow/actions/runs/37283676554/job/111677395254 [2] https://github.com/apache/arrow/issues/51690 [3] https://github.com/apache/arrow/pull/51752#issuecomment-5997877336 El lun, 5 oct 2026 a las 17:47, Raúl Cumplido (<[email protected]>) escribió: > > Hi, > > I would like to propose the following release candidate (RC0) of Apache > Arrow version 26.0.0. This is a release consisting of 337 > resolved GitHub issues[1]. > > This release candidate is based on commit: > 446167169a0dc547e00e1bc29f417a40c0ca267a [2] > > The source release rc0 is hosted at [3]. > The binary artifacts are hosted at [4][5][6][7][8][9]. > The changelog is located at [10]. > > Please download, verify checksums and signatures, run the unit tests, > and vote on the release. See [11] for the SHA-512 checksum for this RC and > [12] > for how to validate a release candidate. > > See also a verification result on GitHub pull request [13]. > > The vote will be open for at least 72 hours. > > [ ] +1 Release this as Apache Arrow 26.0.0 > [ ] +0 > [ ] -1 Do not release this as Apache Arrow 26.0.0 because... > > [1]: > https://github.com/apache/arrow/issues?q=is%3Aissue+milestone%3A26.0.0+is%3Aclosed > [2]: > https://github.com/apache/arrow/tree/446167169a0dc547e00e1bc29f417a40c0ca267a > [3]: https://dist.apache.org/repos/dist/dev/arrow/apache-arrow-26.0.0-rc0 > [4]: https://packages.apache.org/artifactory/arrow/almalinux-rc/ > [5]: https://packages.apache.org/artifactory/arrow/amazon-linux-rc/ > [6]: https://packages.apache.org/artifactory/arrow/centos-rc/ > [7]: https://packages.apache.org/artifactory/arrow/debian-rc/ > [8]: https://packages.apache.org/artifactory/arrow/ubuntu-rc/ > [9]: https://github.com/apache/arrow/releases/tag/apache-arrow-26.0.0-rc0 > [10]: > https://github.com/apache/arrow/blob/446167169a0dc547e00e1bc29f417a40c0ca267a/CHANGELOG.md > [11]: > c8769d4198f1c8e309e1e02e3d7e1db82706d98a7b500ae4e563d0ab504373c26de5141a5efa695541275fc95e8f4ef6a245a95f9ada7958f754e8e82145f9fd > [12]: https://arrow.apache.org/docs/developers/release_verification.html > [13]: https://github.com/apache/arrow/pull/51752
