Narwhals

Changes

:rocket: Performance improvements

- perf: simplify pandas-like `with_columns` (1366)

:sparkles: Enhancements

- feat: add `DataFrame.pivot` for pandas like and Polars backend (546)

🐞 Bug fixes

- fix: pandas and arrow `to_dummies` with nulls (1040)

:book: Documentation

- docs: improve `new_series` docstring (1365)

:hammer_and_wrench: Other improvements

- test: unxfail `test_to_dummies_drop_first_na` for cudf (1364)
- chore: More typing in _polars (1363)
- chore: Improve typing in _polars/utils (1358)
- chore: add issue_deprecation_warning to generate_unique_token function (1359)
- chore: refactor `ArrowDataFrame.with_columns` (1345)

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

Changes

🚀 Performance improvements

- perf: Prefer getitem instead of loc for selecting multiple columns in pandas-like (1355)
- perf: replace loc with getitem in Dask (1356)

✨ Enhancements

- feat: support passing index object directly into maybe_set_index (1319)
- feat: add more parameters to the fill_null method (1149)
- feat: Adding support for Expr.map_batches (1269)
- feat: pyarrow automated inference of format `%Y%m%d%H%M%S` (1326)
- feat: add support for `median` (1212)
- feat: allow mapping in `replace_strict` method (1340)

🐞 Bug fixes

- fix: remove TODO in `PandasLikeDataFrame.to_dict` (1352)
- fix: Fix `nw.lit` out names (1347)

📖 Documentation

- docs: used by `tabmat` (1339)

🛠️ Other improvements

- test: fix docstrings tests in CI (1354)
- test: remove cuDF xfail for tests/series_only/to_list_test.py::test_to_list (1353)
- chore: Rename some internals (1351)
- ci: remove dask from tpch tests (1348)
- ci: pin websockets, fixup 3.13 doctests, remove unnecessary xfail (1343)
- test: Add a hypothesis test for __getitem__ (1098)

Thank you to all our contributors for making this release possible!
AlessandroMiola, DeaMariaLeon, FBruzzesi, IsaiasGutierrezCruz, MarcoGorelli, Riik, raisadz and sjdenny

Changes

- enabled inventory for intersphinx (1330)

🚀 Performance improvements

- perf: improve `ArrowGroupBy.__iter__` performances (1334)

✨ Enhancements

- feat: add `replace` and `replace_strict` (1327)
- feat: support to_list for cudf, note limitations (1335)
- feat: add `maintain_order` to Expr.unique and Series.unique (1333)

📖 Documentation

- docs: add "returns" documentation to functions.py (1331)
- docs: update README with entry in Appears on section (1332)

🛠️ Other improvements

- ci: trigger slow downstream libraries tests suites before release (1321)

Thank you to all our contributors for making this release possible!
AlessandroMiola, EdAbati, FBruzzesi, MarcoGorelli, marenwestermann, raisadz and srivarra

Changes

- expand "used by" (1317)

🚀 Performance improvements

- perf: improve with_columns for pandas-like when using nw.lit (1324)

📖 Documentation

- docs: add note about conversion as if from utc in convert_time_zone (1320)

Thank you to all our contributors for making this release possible!
MarcoGorelli, pre-commit-ci and pre-commit-ci[bot]

Changes

- Revert "depr: deprecate `strict` in `from_native` / `to_native` in favour of `pass_through`" (1311)

⚠️ Deprecations

- depr: deprecate `strict` in `from_native` / `to_native` in favour of `pass_through` (1308)

✨ Enhancements

- feat: add is_into_dataframe (1288)
- Enh: adding automated inferencing of format `%Y-%m-%dT%H:%M` in pyarrow (1292)

🐞 Bug fixes

- fix: consistent naming of positional arguments in from_native (1310)
- fix: `narwhals_to_native_dtype` raise if polars dtype is passed (1307)
- fix: fixed-offset datetime weren't being parsed (1303)
- fix: consistent to_numpy behaviour for tz-aware (1305)
- fix: np.datetime64 scalar with ns resolution was become int instead of datetime in to_py_scalar (1304)

📖 Documentation

- docs: document Stable API changes (1309)

🛠️ Other improvements

- Revert "Revert "depr: deprecate strict in from_native / `to_native` in favour of `pass_through` (1312)
- ci: add vegafusion in ci checks (1228)

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

Changes

✨ Enhancements

- feat: support dataframe.columns for interchange level (1285)

🛠️ Other improvements

- ci: add marimo tests back (1286)
- ci: set pre-commit autoupdate to run monthly instead of weekly (1281)

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