- PNM driver added, which outputs PBM/PGM/PPM format.
- CGM support added, By default, a CGM Plotter produces
binary-encoded version-3 CGM format, which conforms to the WebCGM
profile.
- pseudo-GIF driver added, using miGIF run-length encoding routines
- text string format now supports "\fP" macro for switching to
previous font (cf. troff; "\fR", "\fI", "\fB" supported too).
- libplotter: new C++ library. Provides base Plotter class, subclasses for
the different sorts of Plotter.
- new "dotdotdashed" line style added
- new thread save C/C++ API added (old API still supported)
- pic2plot: new utility, which can translate the pic language to any supported
graphics format, including X11.
- new function pentype() added to the API.
- many bug fixes. See the file 'NEWS' in the source distribution for a
complete list (a couple of pages).