py-1.30.0

## 🚀 Performance improvements

- Switch eligible casts to non-strict in optimizer (#22850)
- Allow predicate passing set\_sorted (#22797)
- Increase default cross-file parallelism limit for new-streaming multiscan (#22700)
- Add elementwise execution mode for `list.eval` (#22715)
- Support optimised init from non-dict `Mapping` objects in `from_records` and frame/series constructors (#22638)
- Add streaming cross-join node (#22581)
- Switch off `maintain_order` in group-by followed by sort (#22492)

## ✨ Enhancements

- Load AWS `endpoint_url` using boto3 (#22851)
- Implemented `list.filter` (#22749)
- Support binaryoffset in search sorted (#22786)
- Add `nulls_equal` flag to `list/arr.contains` (#22773)
- Implement `LazyFrame.match_to_schema` (#22726)
- Improved time-string parsing and inference (generally, and via the SQL interface) (#22606)
- Allow for `.over` to be called without `partition_by` (#22712)
- Support `AnyValue` translation from `PyMapping` values (#22722)
- Support optimised init from non-dict `Mapping` objects in `from_records` and frame/series constructors (#22638)
- Support inference of `Int128` dtype from databases that support it (#22682)
- Add options to write Parquet field metadata (#22652)
- Add `cast_options` parameter to control type casting in `scan_parquet` (#22617)
- Allow casting `List<UInt8>` to `Binary` (#22611)
- Allow setting of regex size limit using `POLARS_REGEX_SIZE_LIMIT` (#22651)
- Support use of literal values as "other" when evaluating `Series.zip_with` (#22632)
- Allow to read and write custom file-level parquet metadata (#21806)
- Support PEP702 `@deprecated` decorator behaviour (#22594)
- Support grouping by `pl.Array` (#22575)
- Preserve exception type and traceback for errors raised from Python (#22561)
- Use fixed-width font in streaming phys plan graph (#22540)

## 🐞 Bug fixes

- Fix RuntimeError when serializing the same DataFrame from multiple threads (#22844)
- Fix map\_elements predicate pushdown (#22833)
- Fix reverse list type (#22832)
- Don't require numpy for search\_sorted (#22817)
- Add type equality checking for relevant methods (#22802)
- Invalid output for `fill_null` after `when.then` on structs (#22798)
- Don't panic for cross join with misaligned chunking (#22799)
- Panic on quantile over nulls in rolling window (#22792)
- Respect BinaryOffset metadata (#22785)
- Correct the output order of `PartitionByKey` and `PartitionParted` (#22778)
- Fallback to non-strict casting for deprecated casts (#22760)
- Clippy on new stable version (#22771)
- Handle sliced out remainder for bitmaps (#22759)
- Don't merge `Enum` categories on append (#22765)
- Fix unnest() not working on empty struct columns (#22391)
- Fix the default value type in `Schema` init (#22589)
- Correct name in `unnest` error message (#22740)
- Provide "schema" to `DataFrame`, even if empty JSON (#22739)
- Properly account for nulls in the `is_not_nan` check made in `drop_nans` (#22707)
- Incorrect result from SQL `count(*)` with `partition by` (#22728)
- Fix deadlock joining scanned tables with low thread count (#22672)
- Don't allow deserializing incompatible DSL (#22644)
- Incorrect null dtype from binary ops in empty group\_by (#22721)
- Don't mark `str.replace_many` with Mapping as deprecated (#22697)
- Gzip has maximum compression of 9, not 10 (#22685)
- Fix predicate pushdown of fallible expressions (#22669)
- Fix `index out of bounds` panic when scanning hugging face (#22661)
- Panic on `group_by` with literal and empty rows (#22621)
- Return input instead of panicking if empty subset in `drop_nulls()` and `drop_nans()` (#22469)
- Bump argminmax to 0.6.3 (#22649)
- DSL version deserialization endianness (#22642)
- Allow Expr.round() to be called on integer dtypes (#22622)
- Fix panic when filtering based on row index column in parquet (#22616)
- WASM and PyOdide compile (#22613)
- Resolve `get()` SchemaMismatch panic (#22350)
- Panic in group\_by\_dynamic on single-row df with group\_by (#22597)
- Add `new_streaming` feature to `polars` crate (#22601)
- Consistently use Unix epoch as origin for ``dt.truncate`` (except weekly buckets which start on Mondays) (#22592)
- Fix interpolate on dtype Decimal (#22541)
- CSV count rows skipped last line if file did not end with newline (#22577)
- Make nested strict casting actually strict (#22497)
- Make `replace` and `replace_strict` mapping use list literals (#22566)
- Allow pivot on `Time` column (#22550)
- Fix error when providing CSV schema with extra columns (#22544)
- Panic on bitwise op between Series and Expr (#22527)
- Multi-selector regex expansion (#22542)

## 📖 Documentation

- Add pre-release policy (#22808)
- Fix broken link to service account page in Polars Cloud docs (#22762)
- Add `match_to_schema` to API reference (#22777)
- Provide additional explanation and examples for the `value_counts` "normalize" parameter (#22756)
- Rework documentation for `drop`/`fill` for nulls/nans (#22657)
- Add documentation to new `RoundMode` parameter in `round` (#22555)
- Add missing `repeat_by` to API reference, fixup `list.get` (#22698)
- Fix non-rendering bullet points in `scan_iceberg` (#22694)
- Improve `insert_column` docstring (description and examples) (#22551)
- Improve `join` documentation (#22556)

## 📦 Build system

- Fix building `polars-lazy` with certain features (#22846)
- Add missing features (#22839)
- Patch pyo3 to disable recompilation (#22796)

## 🛠️ Other improvements

- Update Rust Polars versions (#22854)
- Add basic smoke test for free-threaded python (#22481)
- Update Polars Rust versions (#22834)
- Fix `nix build` (#22809)
- Fix flake.nix to work on macos (#22803)
- Unused variables on release build (#22800)
- Update cloud docs (#22624)
- Fix unstable `list.eval` performance test (#22729)
- Add proptest implementations for all Array types (#22711)
- Dispatch `.write_*` to `.lazy().sink_*(engine='in-memory')` (#22582)
- Move to all optimization flags to `QueryOptFlags` (#22680)
- Add test for `str.replace_many` (#22615)
- Stabilize `sink_*` (#22643)
- Add proptest for row-encode (#22626)
- Update rust version in nix flake (#22627)
- Add a nix flake with a devShell and package (#22246)
- Use a wrapper struct to store time zone (#22523)
- Add `proptest` testing for for parquet decoding kernels (#22608)
- Include equiprobable as valid quantile method (#22571)
- Remove confusing error context calling `.collect(_eager=True)` (#22602)
- Fix test\_truncate\_path test case (#22598)
- Unify function flags into 1 bitset (#22573)
- Display the operation behind `in-memory-map` (#22552)

Thank you to all our contributors for making this release possible!
@IvanIsCoding, @JakubValtar, @Julian-J-S, @LucioFranco, @MarcoGorelli, @WH-2099, @alexander-beedie, @borchero, @bschoenmaeckers, @cmdlineluser, @coastalwhite, @etiennebacher, @florian-klein, @itamarst, @kdn36, @mcrumiller, @nameexhaustion, @nikaltipar, @orlp, @pavelzw, @r-brink, @ritchie46, @stijnherfst, @teotwaki, @timkpaine and @wence-