polars-bio 0.31.0: VCF Zarr Support for Array-Native Variant Analytics
polars-bio 0.31.0 adds first-class support for VCF Zarr, giving Python users a fast, lazy, DataFusion-backed way to query VCF-derived Zarr stores with Polars.
releases
polars-bio 0.26.0: GTF Support and Smart Tag Type Inference
polars-bio 0.26.0 brings first-class GTF format support, automatic SAM tag type inference for custom/nanopore tags, and critical bug fixes for multi-partition writes and VCF contig metadata.
polars-bio 0.23.0: Faster Parsing and Python 3.14 Support
polars-bio 0.23.0 is here with significant parsing performance improvements across VCF, BAM, and FASTQ formats, plus first-day support for Python 3.14. This release bumps the underlying datafusion-bio-formats engine to 0.5.0, delivering up to 3.6x faster VCF parsing with no API changes required.