version Version of TeX or LaTeX

Version of TeX or LaTeX used to produce the mathematics.

Usage/Remarks

This attribute is not a generic version number; its use is limited to naming the version of the TeX or LaTeX specification used in the <tex-math> element.
Other version numbers that may be recorded in this tag set:
OPTIONAL on element: <tex-math>
Value Meaning
Text, numbers, or special characters Version of TeX or LaTeX used in the equation.
Restriction @version is an optional attribute; there is no default.
Tagged Sample

<tex-math> equation encoded with LaTeX version “LaTeX2e”

...
<tex-math id="M1" notation="LaTeX" version="LaTeX2e">
 <![CDATA[\documentclass{article}
 \begin{document}
 If $\sqrt{x} = 8$, then $x=64$.
 \end{document} ]]>
</tex-math>
...