• Added -merge-layers flatten option, for removing overlaps when merging multiple polygon layers.
• Added -clean overlap-rule=[min-id|max-id|min-area|max-area] option.
• Added -join max-distance= option for point-to-point spatial joins.
• Added support for many-to-one point-to-point spatial joins.
• Added -join largest-overlap option for polygon-to-polygon spatial joins, to select a single polygon to join when multiple source polygons overlap a target polygon, based on area of overlap.
• Added undocumented -filter-points command.