ZPlot326.zip contains ZPlot.exe, ZPlot.hlp, title.zp, title.bmp, the palette files title.pl, eight.pl, eightr.pl and qjulia.pl, Dist326.txt, zplot.par and this file.
Eight.pl and eightr.pl are for use with orbit-trap plots, while qjulia.pl has been optimized for quaternion plots.
The sample files included with ZPlot3.12 may or may not work with ZPlot3.26 as shown, due to extensive internal changes. However, most of the sample 2D files are now included in ZPlot3.26 as part of an internal sample data base accessible through the Edit Formula window.