Narwhals

Changes

✨ Enhancements

- feat: add `clone` for dataframes (406)

Thank you to all our contributors for making this release possible!
EdAbati and MarcoGorelli

Changes

- add tpch q21 notebook, remove outdated scripts (398)
- patch: pandas-like drop hotfix (394)

✨ Enhancements

- feat: some pyarrow dataframe methods (404)

🐞 Bug fixes

- fix: `dtype` could not be passed to Series.__array__ (403)
- fix: raise if complex pandas aggregation would return empty results (397)

📖 Documentation

- docs: dataframe docstring via template (395)

📦 Build system

- build: try reducing wheel size (405)

🛠️ Other improvements

- chore: make from_iterable private (399)
- chore: factor `sort_test` out of `test_common` (400)

Thank you to all our contributors for making this release possible!
FBruzzesi and MarcoGorelli

Changes

- lower minimum pandas version to 0.25.3 (390 )

📖 Documentation

- docs: Change expression of merge example in `Why` (391)

Thank you to all our contributors for making this release possible!
MarcoGorelli and luke396

Changes

- add Hamilton to README (384)

✨ Enhancements

- feat: anti join (378)
- feat: add Expr.cast and Series.cast for PyArrow backend (389)
- feat: add Series.is_empty (385)
- feat: add .cat.get_categories to pyarrow (382)

📖 Documentation

- docs: Add contributing guide link to README.md (383)

Thank you to all our contributors for making this release possible!
FBruzzesi, MarcoGorelli and luke396

Changes

- allow slicing by sequence (380)
- feat: add is_ordered_categorical (377)

✨ Enhancements

- feat: add Expr.any, Expr.all, Series.any, and Series.all for PyArrow … (381)

🛠️ Other improvements

- chore: increase local test coverage to 100 (379)

Thank you to all our contributors for making this release possible!
MarcoGorelli

Changes

✨ Enhancements

- feat: cross join (347)
- feat: add unknown dtype for polars backend (376)

🛠️ Other improvements

- chore: make constructor_series in conftest (375)
- chore: add `constructor` fixture for tests (373)
- chore: add Missing pyarrow methods script (371)

Thank you to all our contributors for making this release possible!
FBruzzesi and MarcoGorelli