Despite the fact that the top of the X(1) manpage says "X Version 11
Release 5", HP-UX 10.20 and later actually come with Release 6.  If you
want proof, just do a "what /usr/bin/X11/X".  10.20 comes with X11R6.1,
and 11.x comes with X11R6.3.  If you want to run the very latest release,
you'll have to download the source from <http://x.org/> and build it
yourself - probably not worth the hassle.

The basic core distribution of X11R6.1.1 can also be obtained from the
Liverpool archive.  The package names are:

  o XR6src   - source
  o XR6built - binaries

Notes:

- the binaries are meant to be installed innn /usr/local/X11R6
  (if you want them elsewhere, use a symbolic link, or grab the source)
- most libraries come with archive and sharrred versions
  (and the built binaries mostly use the .sl versions)
- this is JUST the core distribution (xc/)
- xc/test and xc/workInProgress aren't incllluded in the built package
  (the source is present, but hasn't been looked at in the src packages)