v0.9.0

• Restore M4 daily train data with git lfs (#110)
• Bump polars to v0.19.12 (#109)
• TS feature extraction benchmarks (#60)
• Streak lengths (#100)
• add namespace + missing function in the namespace (#95)
• fractional differencing function and test (#104)
• More tse optimisations (#103)
• decorator logging infra (#102)
• plot_* accept LazyFrames too (#101)
• Update gitignore, pyproject.toml and pre-commit config (#96)
• Feat linear trend test (#93)
• Add simple tsfresh unit tests (#92)
• Unit tests (#90)
• fix wrong roll import (#86)
• add __version__ to __init__.py (#87)
• Fix typos + add new functions into polars namespace + unit tests (#77)
• fix variable name (#68)
• mention large panel datasets in headline (#76)
• Additional Features, Fixed Energy Ratios (#71)
• tsfresh abs features and change quantiles (#66)
• fixed autocorr + Lempel Ziv Complexity + Some failing tests (#67)
• Approx. entropy in eager mode (#61)
• fix+perf: Benford correlation and entropy features (#58)
• clean functions in tsfresh (#57)
• Uniformize docstrings (#56)
• typos and removed unused duplication of function number_peaks (#55)
• speed up energy_ratio (#50)
• tsfresh first stage perf and bugs (#49)
• Add count number of cwt peaks feature (#44)
• Bump polars to 0.19.1. (#28)

✨ Enhancements

• Rustify lempel_ziv_complexity (#107)
• add plotting.plot_entities (#98)
• perf+test: More tsfresh updates (#91)
• TS Namespace + Small bug fixes + Reorg (#64)
• Implement partial_autocorrelation (#63)
• Support pl.Expr and pl.Series tsfresh @mathieu (#37)
• tsfresh staging (#32)
• Add Yeo-Johnson transformer (#29)

🛠️ Other improvements

• Update pre-commit hooks: formatting with ruff, format pyproject.toml (#108)
• Add fractional diff to preprocessing tutorial (#106)
• Decrease core build size (#82)

Thank you to all our contributors for making this release possible!
@MathieuCayssol, @TomBurdge, @abstractqqq, @baggiponte, @claysmyth, @daryllimyt, @metaboulie, @ngriffiths13, @topher-lo and @vienneraphael