February 21st, 2013· This version adds a GeoJSON backend, support for bitfields in the BMP format, and a minor change in the behavior of the alphamax parameter (a value of 0 now gives a true polygon).
August 22nd, 2011· A DXF backend was added.
· The output is in the drawing interchange format used by computer aided design software.
· The Gimppath backend was changed to be compatible with current versions of GIMP.
· The EPS, PDF, and SVG backends now use high-resolution bounding boxes.
· The default scaling of the EPS, PDF, and SVG backends is now fixed at 72dpi.
· A new option --flat was added to the SVG backend.
· A new option --tight was added to remove whitespace around the input image before calculating its scaling and placement.
December 22nd, 2010· The xfig and eps backends were improved, and a fixed pagesize PDF backend was added.
· Support for BMP version 4 and version 5 files, as well as top-down BMP files, was added.
· Minor speed improvements were made to Potrace and major speed improvements were made to mkbitmap.
· A Gaussian blur option was added to mkbitmap.
· Libtool is now used to build and optionally install the Potrace library.
· An optional simplified progress bar was added for dumb terminals.
· This release also contains some portability improvements, cross-compilation improvements, and minor bug fixes.
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