Release notes

Version 0.1.0

0.1.0 2026-11-02

Features

• First release of cuspa: GPU point-in-polygon assignment and transcript aggregation for spatial omics S Dicks

• Polygons holds Polygon and MultiPolygon geometry in flat GeoArrow-style buffers, and SpatialIndex indexes it on the GPU S Dicks

• assign_points() assigns each point to one polygon. Both it and overlap_pairs() take CuPy arrays or CUDA PyTorch tensors S Dicks

• overlap_pairs() returns every point-polygon match, including results with more than 2³¹ - 1 pairs pr11 S Dicks

• aggregate_to_cells() builds a sparse cells-by-genes CSRMatrix from batches of transcripts. It converts to CuPy or PyTorch sparse matrices without a copy through host memory S Dicks

• Add the cuspa.io adapters from_geoarrow(), from_geopandas(), from_spatialdata(), and transcripts_from_spatialdata() S Dicks

Misc

• The documentation has release notes and a version switcher: latest follows main, stable is the newest release, and each release keeps its own version S Dicks

• Publish cuspa-cu12 and cuspa-cu13 wheels for x86_64 and aarch64, and the cuspa source distribution S Dicks