✨ Enhancements make unique expr serde and cmp (#8153) Enhanced parametric testing DataFrame generation (#8149) support negative index in pct_change (#8137) add log1p to list of mathematical functions (#8102) Bug fixes object conversion in anyvalue (#8155) Address a ~15% regression in import polars speed (#8151) validate map lenghts (#8147) fix row-wise init of UInt64 values that exceed Int64 upper bound (#8146) implement list\ constructor (#8143) add all primitives to av_buffer builder (#8140) struct is_in (#8139) fix wrong display name of binary expressions (#8131) ️ Other improvements Enhanced parametric testing DataFrame generation (#8149) Thank you to all our contributors for making this release possible! @alexander-beedie, @borc...
Performance improvements add fused multiply add optimization for expressions (#8690) use expression...
Highlights Array (backed by arrow::FixedSizeList datatype (#8943) Write dataframes as delta tables ...
Highlights Add syntactic sugar for col("foo") -> col.foo (#10874) ⚠️ Deprecations Rename Expr.is_...
Performance improvements less naive count (#8473) parallelise dataframe describe method (#8465) par...
Highlights support DataFrame init from pydantic model data (#8178) Performance improvements fail...
Performance improvements optimize str.replace_all (#7353) optimize str.replace ~2x improvement (#73...
Performance improvements improve group_tuples of high cardinality data ~10% (#7938) ✨ Enhancements...
Performance improvements optimize string kernels, (elide redundant allocs) (#7602) even faster pola...
Performance improvements optimize join inner materialization of single keys (#8405) parallelize sor...
Performance improvements don't initialize memory before row-encoding (#9435) further optimize datet...
Performance improvements speed up python object to AnyValue construction (#9840) use hash set in dr...
Performance improvements add optimizer passes and change initial order (#8811) fused multiply sub /...
Performance improvements use atoi in favor of lexical in strptime -25% (#7501) [csv] faster utf8 va...
Performance improvements use streaming instead of partitioned groupby (#7907) don't auto-stream gro...
✨ Enhancements add binary, boolean, categorical, date, object, and time selectors (#10806) Supports...
Performance improvements add fused multiply add optimization for expressions (#8690) use expression...
Highlights Array (backed by arrow::FixedSizeList datatype (#8943) Write dataframes as delta tables ...
Highlights Add syntactic sugar for col("foo") -> col.foo (#10874) ⚠️ Deprecations Rename Expr.is_...
Performance improvements less naive count (#8473) parallelise dataframe describe method (#8465) par...
Highlights support DataFrame init from pydantic model data (#8178) Performance improvements fail...
Performance improvements optimize str.replace_all (#7353) optimize str.replace ~2x improvement (#73...
Performance improvements improve group_tuples of high cardinality data ~10% (#7938) ✨ Enhancements...
Performance improvements optimize string kernels, (elide redundant allocs) (#7602) even faster pola...
Performance improvements optimize join inner materialization of single keys (#8405) parallelize sor...
Performance improvements don't initialize memory before row-encoding (#9435) further optimize datet...
Performance improvements speed up python object to AnyValue construction (#9840) use hash set in dr...
Performance improvements add optimizer passes and change initial order (#8811) fused multiply sub /...
Performance improvements use atoi in favor of lexical in strptime -25% (#7501) [csv] faster utf8 va...
Performance improvements use streaming instead of partitioned groupby (#7907) don't auto-stream gro...
✨ Enhancements add binary, boolean, categorical, date, object, and time selectors (#10806) Supports...
Performance improvements add fused multiply add optimization for expressions (#8690) use expression...
Highlights Array (backed by arrow::FixedSizeList datatype (#8943) Write dataframes as delta tables ...
Highlights Add syntactic sugar for col("foo") -> col.foo (#10874) ⚠️ Deprecations Rename Expr.is_...