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Bump the research-runtime group with 3 updates - #53

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Bump the research-runtime group with 3 updates#53
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Updates the requirements on polars, tzdata and fastexcel to permit the latest version.
Updates polars to 1.44.2

Release notes

Sourced from polars's releases.

Python Polars 1.44.2

🛠️ Other improvements

Thank you to all our contributors for making this release possible! @​EndPositive, @​dsprenkels, @​kdn36, @​lun3x, @​nameexhaustion and @​orlp

Commits
  • 1bd8ec1 Python Polars 1.44.2
  • ccc3842 refactor(rust): Reduce code monomorphization in eager joins (#29087)
  • 22f274b refactor(rust): Reduce serde monomorphization (#29088)
  • b069c83 feat(python): Add organization to Config.enable_monitoring (#29221)
  • d5a00ec ci: Skip tests that are currently failing on windows (#28962)
  • 22dc741 test(python): Update test for latest pyiceberg (#29090)
  • d1a325b fix: Include the library path in the plugin dlopen error message (#29213)
  • 461fe0e feat(python): Add a workspace argument to Config.enable_monitoring (#29196)
  • 0ced41b fix: Wrap IoError in PathIoError such that callers can extract untruncated pa...
  • 3b4075b refactor: Bump object_store for new DnsResolver trait (#29145)
  • Additional commits viewable in compare view

Updates tzdata to 2026.4

Release notes

Sourced from tzdata's releases.

2026.4: Release of upstream tzdata 2026d

Version 2026.4

Upstream version 2026d released 2026-09-11T22:21:07+00:00

Briefly:

Canada’s Northwest Territories moved to permanent -06 on 2026-08-21. Obsolescent settings like TZ="EST5EDT" now conform better to POSIX. Fix security, performance and porting bugs in zic and localtime.

Changes to future timestamps

Canada’s Northwest Territories will not fall back on 2026-11-01 and will stay on -06 year-round, matching Alberta’s recent change. Model this with its traditional abbreviation CST. Although the change to permanent -06 legally took place on 2026-08-21, temporarily model the change to occur on 2026-11-01 at 02:00 for the same reason as other recent temporary hacks. (Caution: see “NOTE FOR 2026b TEMPORARY HACK FOR CLDR AND CANADA” below.) This affects only America/Inuvik as the rest of the territory is covered by America/Edmonton, for which the equivalent change was released in 2026c.

Changes to past timestamps

Colombia’s 1992-05-02 spring forward was at 00:00, not 24:00.

Iran’s 1979-05-26 spring forward was at 00:00, not 24:00. (Thanks to N.F. Hase.)

The backward-compatibility names EST5EDT, CST6CDT, MST7MDT, and PST8PDT now conform better to POSIX. For example, EST5EDT now always uses the abbreviation "EST" for standard time (now always 5 hours behind UT) and "EDT" for daylight saving time, whereas it formerly had different UT offsets before standard time was introduced and sometimes used abbreviations like "LMT", "EWT" and "EPT", all contrary to POSIX. Also, though not required by POSIX these names now use US federal rules rather than rules of places like New York, reverting to 2024a behavior. This change affects only timestamps before 1966-10-30 at 01:00 standard time.

Other data changes

The temporary hacks used for North American timekeeping changes now work around a libstdc++ std::chrono bug in GCC 14.1-14.4, 15.1-15.2, and 16.1; see GCC bug 124851. This data change does not affect TZif files or timestamps. The change does not work around the related but less serious GCC bugs 116110 and 124513. These GCC bugs are all fixed in GCC 16.2.

Changes to documentation

URLs for release tarballs in tz-link.html have been updated to reflect their new canonical URLs on data.iana.org.

Changelog

Sourced from tzdata's changelog.

Version 2026.4

Upstream version 2026d released 2026-09-11T22:21:07+00:00

Briefly:

Canada’s Northwest Territories moved to permanent -06 on 2026-08-21. Obsolescent settings like TZ="EST5EDT" now conform better to POSIX. Fix security, performance and porting bugs in zic and localtime.

Changes to future timestamps

Canada’s Northwest Territories will not fall back on 2026-11-01 and will stay on -06 year-round, matching Alberta’s recent change. Model this with its traditional abbreviation CST. Although the change to permanent -06 legally took place on 2026-08-21, temporarily model the change to occur on 2026-11-01 at 02:00 for the same reason as other recent temporary hacks. (Caution: see “NOTE FOR 2026b TEMPORARY HACK FOR CLDR AND CANADA” below.) This affects only America/Inuvik as the rest of the territory is covered by America/Edmonton, for which the equivalent change was released in 2026c.

Changes to past timestamps

Colombia’s 1992-05-02 spring forward was at 00:00, not 24:00.

Iran’s 1979-05-26 spring forward was at 00:00, not 24:00. (Thanks to N.F. Hase.)

The backward-compatibility names EST5EDT, CST6CDT, MST7MDT, and PST8PDT now conform better to POSIX. For example, EST5EDT now always uses the abbreviation "EST" for standard time (now always 5 hours behind UT) and "EDT" for daylight saving time, whereas it formerly had different UT offsets before standard time was introduced and sometimes used abbreviations like "LMT", "EWT" and "EPT", all contrary to POSIX. Also, though not required by POSIX these names now use US federal rules rather than rules of places like New York, reverting to 2024a behavior. This change affects only timestamps before 1966-10-30 at 01:00 standard time.

Other data changes

The temporary hacks used for North American timekeeping changes now work around a libstdc++ std::chrono bug in GCC 14.1-14.4, 15.1-15.2, and 16.1; see GCC bug 124851. This data change does not affect TZif files or timestamps. The change does not work around the related but less serious GCC bugs 116110 and 124513. These GCC bugs are all fixed in GCC 16.2.

Changes to documentation

URLs for release tarballs in tz-link.html have been updated to reflect their new canonical URLs on data.iana.org.

... (truncated)

Commits
  • b4d2086 Update tzdata to version 2026d (#153)
  • 91a9022 Switch keyserver used for tarball GPG verification (#152)
  • c97164f Bump the actions group with 3 updates (#150)
  • 6c7fa78 Stop testing 3.8 and 3.9, test 3.15 and PyPy3 (#148)
  • d165386 Bump the Actions group with 2 updates (#149)
  • a442794 Update tzdata to version 2026c (#145)
  • 8f35937 Use the release environment for TestPyPI publishes (#146)
  • ba0b891 Few fixes to the maintaining doc
  • 9a7e6a0 Add Stan Ulbrych to license
  • 1cab5e2 Bump actions/checkout from 6.0.2 to 7.0.0 (#144)
  • Additional commits viewable in compare view

Updates fastexcel to 0.21.0

Release notes

Sourced from fastexcel's releases.

v0.21.0

What's Changed

Full Changelog: ToucanToco/fastexcel@v0.20.2...v0.21.0

Commits
  • 8f8ab15 chore: v0.21.0 (#503)
  • 1b5a70c chore(deps): bump the prod-deps group across 1 directory with 4 updates (#505)
  • cf9c32c chore(deps): bump calamine v0.35.0 -> v0.36.1 (#502)
  • 9633e46 chore(deps): bump pyo3 to 0.29 (#499)
  • e9f7307 chore(deps): bumped locked pyarrow version (#490)
  • 81664f7 chore(deps): bump anyhow in the prod-deps group across 1 directory (#501)
  • 97918ff chore(deps): bump actions/setup-python from 6 to 7 (#500)
  • 23c5f32 chore: clippy 0.1.97-compatible lints (#498)
  • 0e067b4 chore(deps): bump actions/checkout from 6 to 7 (#493)
  • 437d87f chore(deps): bump the prod-deps group with 2 updates (#497)
  • Additional commits viewable in compare view

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@dependabot
Bump the research-runtime group with 3 updates
a16528a 
Updates the requirements on [polars](https://github.com/pola-rs/polars), [tzdata](https://github.com/python/tzdata) and [fastexcel](https://github.com/ToucanToco/fastexcel) to permit the latest version.

Updates `polars` to 1.44.2
- [Release notes](https://github.com/pola-rs/polars/releases)
- [Commits](pola-rs/polars@py-1.34.0...py-1.44.2)

Updates `tzdata` to 2026.4
- [Release notes](https://github.com/python/tzdata/releases)
- [Changelog](https://github.com/python/tzdata/blob/master/NEWS.md)
- [Commits](python/tzdata@2024.1...2026.4)

Updates `fastexcel` to 0.21.0
- [Release notes](https://github.com/ToucanToco/fastexcel/releases)
- [Commits](ToucanToco/fastexcel@v0.12.0...v0.21.0)

---
updated-dependencies:
- dependency-name: polars
  dependency-version: 1.44.2
  dependency-type: direct:production
  dependency-group: research-runtime
- dependency-name: tzdata
  dependency-version: '2026.4'
  dependency-type: direct:production
  dependency-group: research-runtime
- dependency-name: fastexcel
  dependency-version: 0.21.0
  dependency-type: direct:production
  dependency-group: research-runtime
...

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@dependabot dependabot Bot added dependencies Pull requests that update a dependency file python Pull requests that update python code labels Oct 1, 2026
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Looks like these dependencies are updatable in another way, so this is no longer needed.

@dependabot dependabot Bot closed this Oct 2, 2026
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dependabot Bot deleted the dependabot/pip/research-runtime-e1c635bc95 branch October 2, 2026 07:09
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