v0.2.16

• Support for importing GeoJSON Features that contain GeometryCollections.
• Fix for issue #68: error clipping some shapes that abut a clip polygon.
• Skip fields with unsupported types when importing .dbf files (instead of throwing exception).
• Support for Node 0.12.x

v0.2.15

• Fixed bug affecting -join command
• Rename data fields to avoid name collisions

v0.2.14

• Add wildcard expansion for input filenames (to support filename expansion in the Windows command line).
• Speed up identification of interior points (-points inner command).
• Improve command line help.

v0.2.13

• Add -calc command for calculating simple statistics about a data layer using a JS expression. Functions include sum() median() average() min() max() count().
• Add function for finding interior points of polygon features, for anchoring symbols and labels.
• Add inner and centroid options to the -points command -- for creating a layer of centroids or interior points from a polygon layer
• Add -sort command for sorting the features in a layer
• -o id-field= now supports a comma-sep. list of field names -- useful for assigning ids to multiple TopoJSON objects with different data properties.

v0.2.12

• Add -filter-islands command with min-area, min-vertices and remove-empty options.
• Add -points command with x and y options, for creating a point layer from x, y coordinates in an attribute table.
• Add -o prettify option to generate human-readable GeoJSON and TopoJSON.
• mapshaper.applyCommands() now returns an array only if output includes more than one JSON object.
• Bug fixes

v0.2.11

• Halt when -merge-layers fails
• Print a warning if -innerlines output is null
• Apply snapping after multiple import files are merged/combined
• Let users apply arbitrarily large snap intervals instead of capping at avg. segment length
• Use APIError type for invalid API function call parameters
• Switch from async csv parsing using node-csv to synchronous parsing using d3.dsv
• Merge mapshaper.runCommandString() into mapshaper.runCommands()
• Add mapshaper.applyCommands() to tranform Geo/TopoJSON programmatically.

v0.2.10

• Bug fix for TopoJSON vertex thresholds generated by -o presimplify

v0.2.9

• Accept point and polyline type layers as targets of -clip and -erase commands
• -o presimplify option adds simplification thresholds to TopoJSON arc vertices.
• Bug fixes

v0.2.8

• Add -rename-layers <name(s)> for renaming one or more target layers

v0.2.7

• Bug fixes (issues #56 and #58)
• Improved output file type inference