A full version statement, which may be only a number, for data or software that is
cited or described
Remarks
The content of this element may be a simple version number (such as
“<version>16</version>” or
“<version>XII</version>”). More complex version statements may
contain a textual statement (“Fifth PC version, patches 2-3”), dates
that the dataset covers, the version number as an ordinal (“3rd” or
“3rd version”), or superscripted ordinals
(“4<sup>th</sup>” or
“10<sup>th</sup> version”). Whether or not the content is more than a simple number, the @designator attribute of this element can be used to hold the simple numerical or alphabetic
version number, if there is such a number (<version designator="16.2">16th version, second release</version>).