In the distribution the MkIV files have suffix 'mkiv'. There are also files with suffix 'mkvi' and more will follow. The most significant difference is that these files use a different (and still somewhat experimental) syntax.
=== Mark VI ===
Mark VI is ''identical to Mark IV'' in every respect, except that when you define a new macro you can give parameters names instead of numbers. This make programming a great deal more pleasant. For example, instead of
<texcode>
\def\colortext[#1]#2%
{\color[#1]{#2}}
</texcode>
you can write
<texcode>
\def\colortext[#color]#text%
{\color[#color]{#text}}
</texcode>
To use Mark VI, add the comment {{code|1=% macros=mkvi}} as the first line of your file, or save the file with a <tt>.mkvi</tt> extension.
== Installation and maintenance ==