v0.2.3

• Add -i id-field= option: import Topo/GeoJSON 'id' property to the specified data field
• Extend -o id-field= option to GeoJSON Features (previously TopoJSON only)

v0.2.2

• Update weighting function for weighted Visvalingam simplification
• Add support for loading mapshaper.js with RequireJS
• Improve display of information with -info command
• Add undocumented -dissolve2 command, which can dissolve overlapping polygons

v0.2.1

• Improve performance of -erase when erase layer contains many small polygons

v0.2.0

• New command line syntax
• New -clip and -erase commands
• Many bug fixes