Hmm it seems that the PyArrow wheel doesn’t actually install on my Mac. Sorry I didn’t report any source testing issues since my environment is pretty messed up..
(arrowvenv) (base) karlkatzen@chloes venv % python3 Python 3.8.3 (default, Jul 2 2020, 11:26:31) [Clang 10.0.0 ] :: Anaconda, Inc. on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import pyarrow as pa Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Users/karlkatzen/Documents/code/venv/arrowvenv/lib/python3.8/site-packages/pyarrow/__init__.py", line 63, in <module> import pyarrow.lib as _lib ImportError: dlopen(/Users/karlkatzen/Documents/code/venv/arrowvenv/lib/python3.8/site-packages/pyarrow/lib.cpython-38-darwin.so, 2): Symbol not found: __ZN5arrow10StopSource5tokenEv Referenced from: /Users/karlkatzen/Documents/code/venv/arrowvenv/lib/python3.8/site-packages/pyarrow/lib.cpython-38-darwin.so Expected in: /usr/local/lib/libarrow.400.dylib in /Users/karlkatzen/Documents/code/venv/arrowvenv/lib/python3.8/site-packages/pyarrow/lib.cpython-38-darwin.so What is __ZN5arrow10StopSource5tokenEv? > On Apr 27, 2021, at 11:23 PM, Micah Kornfield <emkornfi...@gmail.com> wrote: > > Oh, nice, I thought they just missed the cutoff. > > On Tue, Apr 27, 2021 at 8:19 PM Ying Zhou <yzhou7...@gmail.com> wrote: > >> They actually did. >> >> Ying >> >>> On Apr 27, 2021, at 11:11 PM, Micah Kornfield <emkornfi...@gmail.com> >> wrote: >>> >>> Did the ORC additions actually make it into 4.0? >>> >>> On Tue, Apr 27, 2021 at 7:55 PM Ying Zhou <yzhou7...@gmail.com> wrote: >>> >>>> Sure. I just added some info about the ORC writer. I think we need to >>>> update the documentation in both C++ and Python as well to include ORC. >> I >>>> will do it. >>>> >>>> Ying >>>> >>>>> On Apr 27, 2021, at 5:28 PM, Neal Richardson < >>>> neal.p.richard...@gmail.com> wrote: >>>>> >>>>> 4.0 blog post is still pretty bare and could use some help filling in: >>>>> https://github.com/apache/arrow-site/pull/104 >>>>> >>>>> Thanks, >>>>> Neal >>>>> >>>>> On Tue, Apr 27, 2021 at 1:55 PM Sutou Kouhei <k...@clear-code.com> >> wrote: >>>>> >>>>>> The remaining tasks: >>>>>> >>>>>> 3. [in-pr|Kou] upload binaries >>>>>> https://github.com/apache/arrow/pull/10172 >>>>>> 10. [Uwe] update conda recipes >>>>>> 12. [in-pr|Ian] update homebrew packages >>>>>> https://github.com/Homebrew/homebrew-core/pull/76060 >>>>>> >>>>>> I updated versions on JIRA: >>>>>> >>>>>> * >>>>>> >>>> >> https://cwiki.apache.org/confluence/display/ARROW/Release+Management+Guide#ReleaseManagementGuide-Markingthereleasedversionas%22RELEASED%22onJIRA >>>>>> * >>>>>> >>>> >> https://cwiki.apache.org/confluence/display/ARROW/Release+Management+Guide#ReleaseManagementGuide-StartingthenewversiononJIRA >>>>>> >>>>>> In <a4b2434e-b45c-e07d-fba5-20c3ad989...@gmail.com> >>>>>> "Re: [VOTE] Release Apache Arrow 4.0.0 - RC3" on Tue, 27 Apr 2021 >>>>>> 10:37:04 -0500, >>>>>> Paul Taylor <ptaylor.apa...@gmail.com> wrote: >>>>>> >>>>>>> JS packages have been uploaded. >>>>>>> >>>>>>> Paul >>>>>>> >>>>>>> On 4/27/21 9:47 AM, Neal Richardson wrote: >>>>>>>> R package has been accepted by CRAN. >>>>>>>> >>>>>>>> Neal >>>>>>>> >>>>>>>> On Tue, Apr 27, 2021 at 7:25 AM Krisztián Szűcs >>>>>>>> <szucs.kriszt...@gmail.com> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> I've just opened a PR with the updated documentation. >>>>>>>>> >>>>>>>>> The remaining tasks: >>>>>>>>> >>>>>>>>> 3. [in-pr|Kou] upload binaries >>>>>>>>> 6. [Paul] upload js packages >>>>>>>>> 10. [Uwe] update conda recipes >>>>>>>>> 12. [todo] update homebrew packages >>>>>>>>> 14. [Kou] update msys2 >>>>>>>>> 15. [Neal] update R packages >>>>>>>>> 16. [in-pr|Krisztian] update docs >>>>>>>>> >>>>>>>>> On Tue, Apr 27, 2021 at 2:42 PM Krisztián Szűcs >>>>>>>>> <szucs.kriszt...@gmail.com> wrote: >>>>>>>>>> On Tue, Apr 27, 2021 at 2:21 PM Paul Taylor < >>>> ptaylor.apa...@gmail.com >>>>>>> >>>>>>>>> wrote: >>>>>>>>>>> These look like the errors resolved in >>>>>>>>>>> https://github.com/apache/arrow/pull/10156. Can we cherry-pick >>>> that >>>>>>>>>>> commit to the release branch? >>>>>>>>>> Great, I'll cherry-pick that commit. >>>>>>>>>> >>>>>>>>>> Could you please release the JS packages to npm? I think the >>>>>>>>>> lerna.json needs to be updated before npm publish. >>>>>>>>>> >>>>>>>>>> Thank Paul! >>>>>>>>>>> >>>>>>>>>>> On 4/27/21 7:04 AM, Krisztián Szűcs wrote: >>>>>>>>>>>> I'd need some help to both release the JS packages using the new >>>>>>>>> lerna >>>>>>>>>>>> configuration and to fix the JS documentation generation [1]. We >>>>>>>>>>>> should backport these changes to the release-4.0.0 branch. >>>>>>>>>>>> >>>>>>>>>>>> [1]: >>>>>>>>> >>>>>> >>>> >> https://dev.azure.com/ursacomputing/crossbow/_build/results?buildId=4297&view=logs&j=0da5d1d9-276d-5173-c4c4-9d4d4ed14fdb&t=d9b15392-e4ce-5e4c-0c8c-b69645229181 >>>>>>>>>>>> On Tue, Apr 27, 2021 at 1:50 AM Sutou Kouhei < >> k...@clear-code.com> >>>>>>>>> wrote: >>>>>>>>>>>>> I'll also update MSYS2 packages: >>>>>>>>>>>>> >>>>>>>>>>>>> 1. [x] open a pull request to bump the version numbers in the >>>>>>>>> source code >>>>>>>>>>>>> 2. [x] upload source >>>>>>>>>>>>> 3. [kou] upload binaries >>>>>>>>>>>>> 4. [x] update website >>>>>>>>>>>>> 5. [x] upload ruby gems >>>>>>>>>>>>> 6. [ ] upload js packages >>>>>>>>>>>>> 8. [x] upload C# packages >>>>>>>>>>>>> 9. [x] upload rust crates >>>>>>>>>>>>> 10. [ ] update conda recipes >>>>>>>>>>>>> 11. [x] upload wheels/sdist to pypi >>>>>>>>>>>>> 12. [ ] update homebrew packages >>>>>>>>>>>>> 13. [x] update maven artifacts >>>>>>>>>>>>> 14. [kou] update msys2 >>>>>>>>>>>>> 15. [nealrichardson] update R packages >>>>>>>>>>>>> 16. [ ] update docs >>>>>>>>>>>>> >>>>>>>>>>>>> In <CAHM19a7wsHCv634KixUsO9F=Z_zoPuAPEwv33YzDnB4ir= >>>>>>>>> r...@mail.gmail.com> >>>>>>>>>>>>> "Re: [VOTE] Release Apache Arrow 4.0.0 - RC3" on Tue, 27 Apr >>>>>>>>> 2021 01:48:37 +0200, >>>>>>>>>>>>> Krisztián Szűcs <szucs.kriszt...@gmail.com> wrote: >>>>>>>>>>>>> >>>>>>>>>>>>>> On Tue, Apr 27, 2021 at 1:05 AM Andy Grove < >>>> andygrov...@gmail.com >>>>>>> >>>>>>>>> wrote: >>>>>>>>>>>>>>> The following Rust crates have been published: arrow, >>>>>>>>> arrow-flight, parquet, parquet_derive, datafusion >>>>>>>>>>>>>> Thanks Andy! >>>>>>>>>>>>>> >>>>>>>>>>>>>> The current status is: >>>>>>>>>>>>>> 1. [x] open a pull request to bump the version numbers in the >>>>>>>>> source code >>>>>>>>>>>>>> 2. [x] upload source >>>>>>>>>>>>>> 3. [kou] upload binaries >>>>>>>>>>>>>> 4. [x] update website >>>>>>>>>>>>>> 5. [x] upload ruby gems >>>>>>>>>>>>>> 6. [ ] upload js packages >>>>>>>>>>>>>> 8. [x] upload C# packages >>>>>>>>>>>>>> 9. [x] upload rust crates >>>>>>>>>>>>>> 10. [ ] update conda recipes >>>>>>>>>>>>>> 11. [x] upload wheels/sdist to pypi >>>>>>>>>>>>>> 12. [ ] update homebrew packages >>>>>>>>>>>>>> 13. [x] update maven artifacts >>>>>>>>>>>>>> 14. [ ] update msys2 >>>>>>>>>>>>>> 15. [nealrichardson] update R packages >>>>>>>>>>>>>> 16. [ ] update docs >>>>>>>>>>>>>>> On Mon, Apr 26, 2021 at 4:34 PM Andy Grove < >>>>>> andygrov...@gmail.com> >>>>>>>>> wrote: >>>>>>>>>>>>>>>> Yes, I can handle the Rust release. >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> On Mon, Apr 26, 2021, 4:17 PM Krisztián Szűcs < >>>>>>>>> szucs.kriszt...@gmail.com> wrote: >>>>>>>>>>>>>>>>> @Andy Grove could you please handle the rust release? >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> On Mon, Apr 26, 2021 at 11:51 PM Krisztián Szűcs >>>>>>>>>>>>>>>>> <szucs.kriszt...@gmail.com> wrote: >>>>>>>>>>>>>>>>>> 1. [x] open a pull request to bump the version numbers in >>>> the >>>>>>>>> source code >>>>>>>>>>>>>>>>>> 2. [x] upload source >>>>>>>>>>>>>>>>>> 3. [kou] upload binaries >>>>>>>>>>>>>>>>>> 4. [x] update website >>>>>>>>>>>>>>>>>> 5. [x] upload ruby gems >>>>>>>>>>>>>>>>>> 6. [ ] upload js packages >>>>>>>>>>>>>>>>>> 8. [x] upload C# packages >>>>>>>>>>>>>>>>>> 9. [ ] upload rust crates >>>>>>>>>>>>>>>>>> 10. [ ] update conda recipes >>>>>>>>>>>>>>>>>> 11. [in-progress] upload wheels/sdist to pypi >>>>>>>>>>>>>>>>>> 12. [ ] update homebrew packages >>>>>>>>>>>>>>>>>> 13. [x] update maven artifacts >>>>>>>>>>>>>>>>>> 14. [ ] update msys2 >>>>>>>>>>>>>>>>>> 15. [nealrichardson] update R packages >>>>>>>>>>>>>>>>>> 16. [ ] update docs >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> The JS post release task is failing with: >>>>>>>>>>>>>>>>>>>>> lerna ERR! ENOLERNA `lerna.json` does not exist, have >> you >>>>>>>>> run `lerna init`? >>>>>>>>>>>>>>>>>> I assume the lerna configuration should be updated >> including >>>>>>>>> the version number. >>>>>>>>>>>>>>>>>> @Paul Taylor could you please handle the JS release? >>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>> On Mon, Apr 26, 2021 at 9:01 PM Krisztián Szűcs >>>>>>>>>>>>>>>>>> <szucs.kriszt...@gmail.com> wrote: >>>>>>>>>>>>>>>>>>> The current status of the post-release tasks: >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> 1. [x] open a pull request to bump the version numbers >> in >>>>>>>>> the source code >>>>>>>>>>>>>>>>>>> 2. [x] upload source >>>>>>>>>>>>>>>>>>> 3. [can't do] upload binaries >>>>>>>>>>>>>>>>>>> 4. [x] update website >>>>>>>>>>>>>>>>>>> 5. [x] upload ruby gems >>>>>>>>>>>>>>>>>>> 6. [ ] upload js packages >>>>>>>>>>>>>>>>>>> 8. [ ] upload C# packages >>>>>>>>>>>>>>>>>>> 9. [ ] upload rust crates >>>>>>>>>>>>>>>>>>> 10. [ ] update conda recipes >>>>>>>>>>>>>>>>>>> 11. [kszucs] upload wheels/sdist to pypi >>>>>>>>>>>>>>>>>>> 12. [ ] update homebrew packages >>>>>>>>>>>>>>>>>>> 13. [kszucs] update maven artifacts >>>>>>>>>>>>>>>>>>> 14. [ ] update msys2 >>>>>>>>>>>>>>>>>>> 15. [nealrichardson] update R packages >>>>>>>>>>>>>>>>>>> 16. [ ] update docs >>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>> On Mon, Apr 26, 2021 at 8:19 PM Krisztián Szűcs >>>>>>>>>>>>>>>>>>> <szucs.kriszt...@gmail.com> wrote: >>>>>>>>>>>>>>>>>>>> The VOTE carries with 4 binding +1 and 5 non-binding +1 >>>>>>>>> votes. >>>>>>>>>>>>>>>>>>>> Thanks everyone! >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>> I'm starting the post release tasks and keep you posted >>>>>>>>> about the >>>>>>>>>>>>>>>>>>>> current status. >>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>> On Mon, Apr 26, 2021 at 6:06 PM Neal Richardson >>>>>>>>>>>>>>>>>>>> <neal.p.richard...@gmail.com> wrote: >>>>>>>>>>>>>>>>>>>>> +1 (binding) >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> GitHub Actions verifications are green and R artifact >>>>>>>>> builds are successful. >>>>>>>>>>>>>>>>>>>>> Neal >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>> On Mon, Apr 26, 2021 at 6:02 AM Krisztián Szűcs < >>>>>>>>> szucs.kriszt...@gmail.com> >>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>> On Sun, Apr 25, 2021 at 10:59 PM Sutou Kouhei < >>>>>>>>> k...@clear-code.com> wrote: >>>>>>>>>>>>>>>>>>>>>>> Here: https://github.com/apache/arrow/pull/10126 >>>>>>>>>>>>>>>>>>>>>> I've incorporated the automatic verification step to >> the >>>>>>>>> release >>>>>>>>>>>>>>>>>>>>>> procedure so we can start the VOTE after having >> positive >>>>>>>>> feedback from >>>>>>>>>>>>>>>>>>>>>> the verification tasks. >>>>>>>>>>>>>>>>>>>>>>> In <CAJPUwMCNJncvERS5Yvzfp25W8fUcgJFvy57= >>>>>>>>> hzrz9-a82+a...@mail.gmail.com> >>>>>>>>>>>>>>>>>>>>>>> "Re: [VOTE] Release Apache Arrow 4.0.0 - RC3" on >>>> Sun, >>>>>>>>> 25 Apr 2021 >>>>>>>>>>>>>>>>>>>>>> 15:12:30 -0500, >>>>>>>>>>>>>>>>>>>>>>> Wes McKinney <wesmck...@gmail.com> wrote: >>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> Have we run the GitHub Actions release >> verifications, >>>> or >>>>>>>>> can we do >>>>>>>>>>>>>>>>>>>>>>>> that? I will try to run the RC verification on my >> dev >>>>>>>>> machine (I >>>>>>>>>>>>>>>>>>>>>>>> recently reinstalled Linux so wasn't equipped to >>>>>>>>> immediately run the >>>>>>>>>>>>>>>>>>>>>>>> verification script) >>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>> On Sun, Apr 25, 2021 at 2:31 PM Jorge Cardoso Leitão >>>>>>>>>>>>>>>>>>>>>>>> <jorgecarlei...@gmail.com> wrote: >>>>>>>>>>>>>>>>>>>>>>>>> +1, based on Rust alone. All tests pass as they >>>> should. >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> Thanks a lot everyone for making this happen. >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> Best, >>>>>>>>>>>>>>>>>>>>>>>>> Jorge >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>> On Thu, Apr 22, 2021 at 5:17 PM Jonathan Keane < >>>>>>>>> j...@ursacomputing.com >>>>>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> +1 (non-binding) >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> Verified wheels, sources, and binaries on macOS >> 11.2 >>>>>>>>> using the >>>>>>>>>>>>>>>>>>>>>> verification >>>>>>>>>>>>>>>>>>>>>>>>>> script (except for Java Integration, Glib, and >>>> Ruby). >>>>>>>>> Like Antoine >>>>>>>>>>>>>>>>>>>>>> I ran >>>>>>>>>>>>>>>>>>>>>>>>>> into the same issue with Ruby. >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> I also installed Arrow and the R package locally + >>>> ran >>>>>>>>> some adhoc >>>>>>>>>>>>>>>>>>>>>> tests >>>>>>>>>>>>>>>>>>>>>>>>>> using some of our benchmarks. >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> I've also confirmed the RC (1 and 3) work using >> the >>>> R >>>>>>>>> distribution >>>>>>>>>>>>>>>>>>>>>> setup we >>>>>>>>>>>>>>>>>>>>>>>>>> have [1]. I will update those to point to the >>>> release >>>>>>>>> when it is >>>>>>>>>>>>>>>>>>>>>> ready. >>>>>>>>>>>>>>>>>>>>>>>>>> [1]: >>>>>>>>> https://github.com/r-windows/rtools-packages/pull/197 (and >>>>>>>>>>>>>>>>>>>>>> other >>>>>>>>>>>>>>>>>>>>>>>>>> linked PRs) >>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>> On Thu, Apr 22, 2021 at 9:23 AM David Li < >>>>>>>>> lidav...@apache.org> >>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>> +1 (non-binding) >>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>> Verified wheels, sources, and apt binaries on >>>> Ubuntu >>>>>>>>> 18.04. >>>>>>>>>>>>>>>>>>>>>>>>>>> Best, >>>>>>>>>>>>>>>>>>>>>>>>>>> David >>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>> On 2021/04/21 21:30:33, Krisztián Szűcs < >>>>>>>>> ksz...@apache.org> >>>>>>>>>>>>>>>>>>>>>> wrote: >>>>>>>>>>>>>>>>>>>>>>>>>>>> Hi, >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> I would like to propose the following release >>>>>>>>> candidate (RC3) >>>>>>>>>>>>>>>>>>>>>> of Apache >>>>>>>>>>>>>>>>>>>>>>>>>>>> Arrow version 4.0.0. This is a release >> consisting >>>> of >>>>>>>>> 719 >>>>>>>>>>>>>>>>>>>>>>>>>>>> resolved JIRA issues[1]. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> This release candidate is based on commit: >>>>>>>>>>>>>>>>>>>>>>>>>>>> f959141ece4d660bce5f7fa545befc0116a7db79 [2] >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> The source release rc3 is hosted at [3]. >>>>>>>>>>>>>>>>>>>>>>>>>>>> The binary artifacts are hosted at [4][5][6][7]. >>>>>>>>>>>>>>>>>>>>>>>>>>>> The changelog is located at [8]. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> Please download, verify checksums and >> signatures, >>>>>>>>> run the unit >>>>>>>>>>>>>>>>>>>>>> tests, >>>>>>>>>>>>>>>>>>>>>>>>>>>> and vote on the release. See [9] for how to >>>> validate >>>>>>>>> a release >>>>>>>>>>>>>>>>>>>>>>>>>> candidate. >>>>>>>>>>>>>>>>>>>>>>>>>>>> The vote will be open for at least 72 hours. >>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>> [ ] +1 Release this as Apache Arrow 4.0.0 >>>>>>>>>>>>>>>>>>>>>>>>>>>> [ ] +0 >>>>>>>>>>>>>>>>>>>>>>>>>>>> [ ] -1 Do not release this as Apache Arrow 4.0.0 >>>>>>>>> because... >>>>>>>>>>>>>>>>>>>>>>>>>>>> [1]: >>>>>>>>> >>>>>> >>>> >> https://issues.apache.org/jira/issues/?jql=project%20%3D%20ARROW%20AND%20status%20in%20%28Resolved%2C%20Closed%29%20AND%20fixVersion%20%3D%204.0.0 >>>>>>>>>>>>>>>>>>>>>>>>>>>> [2]: >>>>>>>>> >>>>>> >>>> >> https://github.com/apache/arrow/tree/f959141ece4d660bce5f7fa545befc0116a7db79 >>>>>>>>>>>>>>>>>>>>>>>>>>>> [3]: >>>>>>>>> >> https://dist.apache.org/repos/dist/dev/arrow/apache-arrow-4.0.0-rc3 >>>>>>>>>>>>>>>>>>>>>>>>>>>> [4]: >>>>>>>>> https://bintray.com/apache/arrow/centos-rc/4.0.0-rc3 >>>>>>>>>>>>>>>>>>>>>>>>>>>> [5]: >>>>>>>>> https://bintray.com/apache/arrow/debian-rc/4.0.0-rc3 >>>>>>>>>>>>>>>>>>>>>>>>>>>> [6]: >>>>>>>>> https://bintray.com/apache/arrow/python-rc/4.0.0-rc3 >>>>>>>>>>>>>>>>>>>>>>>>>>>> [7]: >>>>>>>>> https://bintray.com/apache/arrow/ubuntu-rc/4.0.0-rc3 >>>>>>>>>>>>>>>>>>>>>>>>>>>> [8]: >>>>>>>>> >>>>>> >>>> >> https://github.com/apache/arrow/blob/f959141ece4d660bce5f7fa545befc0116a7db79/CHANGELOG.md >>>>>>>>>>>>>>>>>>>>>>>>>>>> [9]: >>>>>>>>> >>>>>> >>>> >> https://cwiki.apache.org/confluence/display/ARROW/How+to+Verify+Release+Candidates >>>>>>> >>>>>> >>>> >>>> >> >>