Defines macros \includeversion{NAME} and \excludeversion{NAME}, each of which defines an environment NAME whose text is to be included or excluded from compilation.

Although the command syntax is very similar to that of comment, comment.sty is to be preferred to version.sty for documents where significant chunks of text may be excluded.

See also verbatim versions optional comment.

The authors are Stephen Bellantoni and Donald Arseneau.