It essentially takes your GUI input and turns it into the following Ghostscript command: gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.6 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH ...
All types of floating point notations are working now; All types of complex number notations are working now; New types of binary and octal-number notations are supported; Long integer is removed.