+These programs will probably handle glyphs beyond the BMP properly, but
+that capability is considered experimental, as the focus was to cover
+the BMP. The @code{unihex2png} and @code{unipng2hex} programs handle
+the full Unicode code point range of 0x000000 through 0x10FFFF. The
+@code{unihex2bmp} and @code{unibmp2hex} programs support the full
+32-bit unsigned integer range of 0x00000000 through 0xFFFFFFFF, but
+have not been tested extensively beyond the Unicode BMP. The range of
+the C programs might be truncated in the future to only cover to
+0x10FFFF, the limit of the Unicode code point space.
+
+The latest release of the @code{hexdraw} program works correctly with .hex
+files having code points in the full Unicode range of U+0000 through U+10FFFF.
+