Bump polars from 1.38.1 to 1.39.0

[dependabot]

Bumps polars from 1.38.1 to 1.39.0.

Release notes

Sourced from polars's releases.

Python Polars 1.39.0

🚀 Performance improvements

• Lower arg_{min,max} to streaming engine (#26845)
• Additional IR slice pushdown after filter pushdown (#26815)
• Streaming first/last on Enum through physical (#26783)
• Fast filter for scalar predicates (#26745)
• Allow SimpleProjection in streaming engine to rename (#26709)
• Streaming cloud download for scan_csv (#26637)
• Drop columns only needed for predicates after the predicate is applied (#26703)
• Run projection pushdown after predicate pushdown (#26688)
• Comparison literal downcasting (#26663)
• Add dynamic predicates for TopK (#26495)
• Increase minimum default parquet row group prefetch to 8 (#26632)
• Partial predicate conversion to PyArrow (#26567)
• Streaming cloud download for scan_ndjson / scan_lines (#26563)
• Grab GIL fewer times during Object join materialization (#26587)
• Improve CSV and NDJSON cloud sink performance (#26545)
• Tune cloud writer performance (#26518)
• Allow parallel InMemorySinks in streaming engine (#26501)
• Add streaming AsOf join node (#26398)
• Don't always rechunk on gather of nested types (#26478)

✨ Enhancements

• Support Expr for holidays in business day calculations (#26193)
• Parameter for pivot to always include value column name (#26730)
• Raise error in .collect_schema() when arr.get() is out-of-bounds (#26866)
• Extend Expr.reinterpret to all numeric types of the same size (#26401)
• Add missing_columns parameter to scan_csv (#26787)
• Clear no-op scan projections (#26858)
• Support nested datatypes for {min,max}_by (#26849)
• Support SQL ARRAY init from typed literals (#26622)
• Accept table identifier string in scan_iceberg() (#26826)
• Add a convenience make fresh command to the Makefile (#26809)
• Expose "use_zip64" Workbook option for write_excel (#26699)
• Add unstable LazyFrame.sink_iceberg (#26799)
• Add maintain order argument on implode (#26782)
• Speed up casting primitive to bool by at least 2x (#26823)
• Support ASCII format table input to pl.from_repr (#26806)
• Enable rowgroup skipping for float columns (#26805)
• Add expression context to errors (#26716)
• Add Decimal support for product reduction (#26725)
• Support all Iceberg V2 arrow types in sink_parquet arrow_schema parameter (#26669)
• Re-work behavior of arrow_schema parameter on sink_parquet (#26621)
• Add contains_dtype() method for Schema (#26661)
• Implement truncate as a "to_zero" rounding mode (#26677)
• More generic streaming GroupBy lowering (#26696)
• Create an Alignment TypeAlias (#26668)
• Add basic MemoryManager to track buffered dataframes for out-of-core support later (#26443)

... (truncated)

Commits

• 2bce04a chore: Use large linux-arm runner for release (#26898)
• d764326 Python Polars 1.39.0 (#26891)
• 3ebdb3a fix: Prevent Boolean arithmetic with integer literals producing Unknown t...
• fc24eea fix: Fix sink to partitioned S3 from Windows corrupted slashes (#26889)
• 9a78aa1 fix: Remove outdated warning about List columns in unique() (#26295) (#26890)
• d310d96 fix: Restore pyarrow predicate conversion for is_in (#26811)
• 9398fe9 fix: Release GIL before df.to_ndarray() to avoid deadlock (#26832)
• 7e1b813 fix: Fix panic on CSV count_rows with FORCE_ASYNC (#26883)
• f380d60 feat: Support Expr for holidays in business day calculations (#26193)
• 13f88c6 fix: Add scalar comparisons for UInt128 series (#26886)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.31%. Comparing base (ef83fbb) to head (da864a4).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #751   +/-   ##
=======================================
  Coverage   98.31%   98.31%           
=======================================
  Files          48       48           
  Lines        1485     1485           
=======================================
  Hits         1460     1460           
  Misses         25       25           

Flag	Coverage Δ
unittests	98.31% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[github-actions]

Thank you for your contribution @dependabot[bot] 🚀! Your github-pages is ready for download 👉 here 👈!
_{(The artifact expires on 2026-03-23T06:06:46Z. You can re-generate it by re-running the workflow here.)}