This element is defined and used differently in NISO STS than it is in JATS. Therefore, since the NISO STS Tag Sets inherit many JATS elements, the <edition> element has two different contexts with two different meanings.
Within standards-specific elements (such as <std-ident> and <std-ref>), an <edition> element gives the edition number for this standards document. (Note: Use of <edition> inside <std-ref> is discouraged.)
Within citation-related elements (such as <mixed-citation> and <related-object>), an <edition> element contains the full edition statement for the document being cited or described.
Any combination of:
Text, numbers, or special characters
Baseline Change Elements