### Changes

- pm3d filled area quadrangles are clipped smoothly to current zrange. This affects pm3d surfaces and also the faces of 3D boxes, polygons, etc.
- Revised syntax for plot style 'with parallelaxes'. See parallel (p. ). The histogram, parallelaxis, and spiderplot styles now use similar syntax that can iterate over plot elements: plot for [column=1:N] DATA using column
- Sampling generated by pseudofile '+' is affected by set trange.
- Offsets from set offsets are applied only to autoscaled axes. The documentation has always said this, but it was not applied consistently.
- Imaginary values returned by the using specifier of a 2D plot are treated as undefined values (NaN) rather than as real(value). This was always true for function plots and 3D data plots. E.g. the following two plots are equivalent. plot [-1:1] sqrt(x); plot [-1:1] '+' using 1:(sqrt($1)
- The set fontpath command is deprecated. The search path for fonts to be embedded in output from the postscript terminal has been revised.