Re:differentce between X11R6.5.1 and X4.0.1 (Score 3)

In cases like this, it would be good for someone knowledgeable to illustrate the differences, rather than simply expressing displeasure at the ignorance and audacity of those who aren't in the know, but willing to try.

I can see where it's easy to confuse X Consortium releases with XFree86 releases, since most books, HOWTO's, FAQ's, etc., don't touch this topic at all.

I have only the vaguest ideas of what those entities do, but I'd love to know more.