> "This was the first version that separates between a 'mark ii' and 
> 'mark iv' version."
> I guess I missed something important, but I am ignorant on the terms 
> "mark ii" and "mark iv" version.
> Searching contextgarden did not reveal an explanation to me.
> I would appreciate if someone can point me to some reading stuff.
See: http://www.pragma-ade.nl/general/manuals/mk.pdf

Greetings,

Jelle