Minarrow V0.15

Minarrow 0.15.0 accompanies the major release of Minarrow Python.

Added

• _into Datetime kernel variants for efficient non-allocations.
• _into Bitmask kernel variants for efficient non-allocations.
• UnsafeMut utility Buffer for handling cross-thread bitpacked writes.

Changed

• Improved name construction ergonomics.

Minarrow V0.14.0

1. Added _into mutable output buffer datetime variants supporting efficient parallelism.
2. Added TimePeriod enum consistency for datetime periods with automatic deref on string constituents i.e., week becomes TimePeriod::Week at the call-site.
3. Fixed BitmaskV lifetime.
4. Fixed BooleanArray length visibility.

Minarrow 0.13.0

See CHANGELOG.md for details

minarrow-pyo3 0.3.0

Changed

• Bumped minarrow dependency from 0.10.1 to 0.11.0.

Removed

• Unused nightly feature gates (allocator_api, slice_ptr_get,
  portable_simd) from the crate root. The underlying allocator-aware types
  are re-exported from minarrow, so the gates are not required at this
  crate's call sites.

minarrow 0.11.0

[0.11.0] - 2026-05-15

Added

• arrow-rs / polars import bridges (#70): symmetric from_apache_arrow /
  from_polars across Array, FieldArray, Table, SuperArray, and
  SuperTable, each with a try_* sibling returning Result<_, MinarrowError>.
  Adds From<&Series>, From<&RecordBatch>, From<&DataFrame>, and
  From<&[RecordBatch]> for .into() ergonomics.
• New feature-gated bridge modules src/ffi/arrow_rs.rs (cast_arrow) and
  src/ffi/polars.rs (cast_polars) centralising the export / import pairs (#70).
• MinarrowError::BridgeError variant carrying arrow-rs / polars FFI failures,
  with feature-gated From impls for ArrowError and PolarsError (#70).
• Matrix: strided LAPACK matrix getters, improved interoperability, and
  improved docs (#59, #62).
• Cross-tabulate string kernel.
• has_nulls accessor (#63).
• with_capacity for CategoricalArray<T> (#67).
• Filled missing trait impls: SuperTable From, TryFrom<Value> gaps,
  From<BooleanArrayV> for Value, plus other From impls (#67).
• Vec64 arm for the fa! macro.
• Zero-copy to_array escape path.
• Minimal log dependency.

Changed

• View -> owned conversions take a fast path when the view spans its full
  backing storage (offset 0, length matches the backing array): skips
  slice_clone and returns an Arc clone of the underlying allocation (#80).
• Polars Array / FieldArray / Table from_polars now route through
  SuperArray::from_polars / SuperTable::from_polars, correctly handling
  multi-chunked Series / DataFrame inputs (#76, #77).
• Bumped all dependencies to latest semver (#68).
• Breaking: renamed SuperArray::to_apache_arrow_chunks and
  SuperTable::to_apache_arrow_batches to to_apache_arrow (#70).

Removed

• Breaking: removed Array::to_apache_arrow_with_field and
  Array::to_polars_with_field. Wrap in a FieldArray and call its to_*()
  method when an explicit Field is needed (#70).

Fixed

• Per-call Box leak in the to_* export paths — ArrowArray / ArrowSchema
  heap wrappers were not freed after read() (#70).
• Categorical pandas -1 null sentinel handling (#69).
• Zero-sized shared buffer checks: round-trips through SharedBuffer for
  zero-row columns no longer panic on alignment assertions (#73).
• Polars default features (#77).
• Default features and the test harness; stale ref in benches.
• Pinned the toolchain via rust-toolchain.toml to work around an upstream
  issue.