[4.5.0a2] - 2026-02-27

• cells_to_h3shape/cells_to_geo now handle all valid cell sets, including sets that would produce global polygons crossing the antimeridian, poles, or are larger than a hemisphere
  • Duplicate cells now raise H3DuplicateInputError
  • Mixed-resolution cells now raise H3ResMismatchError
  • Internal: switch from linked-list to array-based C API for cells-to-polygon conversion