Polars: py-0.20.3-rc.2 Release

🚀 Performance improvements

• don't needlessly allocate validity in concat/rechunk (#13288)
• add fast path to count_bits_set_by_offsets (#13253)
• make .dt.truncate('*mo') more than 3x faster (#13192)

✨ Enhancements

• change doc links to new url docs.pola.rs (#13290)
• support horizontal concatenation of LazyFrames (#13139)
• Rename Utf8 data type to String, keep Utf8 as alias (#13257)
• dispatch strict_cast via cast (#13255)
• Impl any/all for array type (#13250)
• add cancellable queries (#13178)
• add offset parameter to gather_every (#13156)
• Support Array dtype AnyValue Series construction (#12817)
• Allow step parameter in int_ranges to take an expression (#13148)
• make python map_batches safer (#13181)
• Implement count for DataFrame/LazyFrame (#13153)

🐞 Bug fixes

• sorting categorical lexically bugs on null values (#13271)
• improve replace on categoricals (#13223)
• round trip to JSON and back should preserve Enum type (#13267)
• fix return type hint of list series any/all (#13265)
• sink_csv deadlock (#13239)
• Correctly use read_parquet for all binary inputs (#13218)
• is_in operator for categoricals (#13205)
• Better handle mismatched dtypes in replace (#13213)
• Fix replace fast path by casting old input to the right data type (#13176)
• ndjson nested null schema inference (#13206)
• don't cast to unknown dtypes (#13197)
• maintain old join behavior in window expression (#13179)

🛠️ Other improvements

• Copy Makefile build commands to top level (#13293)
• Fix release flags (#13298)
• Re-enable consortium standard tests (#13296)
• Update CODEOWNERS (#13292)
• Add CPU compatibility check (#13134)
• Change base url of docs/guide to docs.pola.rs (#13281)
• Fix source link for dev docs (#13279)
• fix return type hint of list series any/all (#13265)
• Fix display of overloaded signatures (#13258)
• clean up bytecode parsing a bit (#13221)
• Add a couple of docstring examples to Series methods (#13244)
• remove unnecessary arg unpacking (#13241)
• update rustc (#13219)
• fix horizontal concatenation documentation (#13141)
• Replace blackdoc by ruff's new docstring formatter (#13182)
• Update ruff & ruff settings (#13126)
• Link to latest object_store docs in api doc (#13180)
• Fix failing test (#13171)

Thank you to all our contributors for making this release possible! @MarcoGorelli, @TNieuwdorp, @adamreeve, @alexander-beedie, @c-peters, @cjfuller, @dependabot, @dependabot[bot], @mcrumiller, @orlp, @petrosbar, @r-brink, @reswqa, @ritchie46, @robvanmieghem and @stinodego