v0.5.97

• Better warnings and error messages.

v0.5.96

• Added colors=random option to the -classify command.
• Added more sensible default behavior to the -classify command.

v0.5.95

• Added vertex deletion in "edit vertices" mode by double-clicking on non-endpoint vertices.

v0.5.94

• Added file_exists() test to -if/-elif expression context.

v0.5.93

• Add a vertex in "edit vertices" mode by dragging the midpoint of a segment.

v0.5.92

• Show vertices in the "drag vertices" editing mode.
• Added -c/--commands option to mapshaper-gui, for running console commands when data is first imported.

v0.5.91

• Added -print command, for printing messages to the console or terminal. Useful in conjunction with the -if/-elif/-else commands.
• Added field_exists(), field_type() and field_includes() functions to -if expressions.

v0.5.89

• Added help documentation for -symbols command.
• Added --name option to mapshaper-gui, for setting the layer names of imported files.

v0.5.88

• Added -if/-elif/-else/-endif commands for running commands selectively.
• Bug fixes

v0.5.87

• Added undo/redo to the "drag vertices" interactive editing mode.