NEWS

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duckh3 0.2.0 (2026-10-11)

BUILD

• Requires DuckDB >= 1.5.6

• Requires duckspatial >= 1.3.0

ENHANCEMENTS

• Functions in vetorized mode automatically parse to UBIGINT when the input is a numeric vector.

• Error message on wrong CRS is now displayed correctly (#3).

NEW FEATURES

• New functions to convert polygon and linestring geometries to H3 cells (#2):
  • ddbh3_polygons_to_h3() / ddbh3_lines_to_h3() add a list column with the H3 cells intersecting each feature (string or UBIGINT).
  • ddbh3_polygons_to_spatial() / ddbh3_lines_to_spatial() return one row per intersecting cell, with geometry replaced by the cell hexagon boundary.
  • Polygons use DuckDB's experimental polygon polyfill (overlap containment by default); lines are polyfilled via a buffer-then-exact-trim strategy since they have no native polyfill (buffer_scale argument).

duckh3 0.1.0 (2026-04-24)

Learn more about this release here{target="_blank"}.

• Initial CRAN submission.