(history clause ...)
clause = #:added version-expr | #:changed version-expr content-expr
version-expr : valid-version?
content-expr : content?
Normally, history should be used at the end of a defform, defproc, etc., entry, although it may also appear in a section that introduces a module (that has been added to a package). In the case of a changed entry, the content produced by content-expr should normally start with a capital letter and end with a period, but it can be a sentence fragment such as “Added a #:changed form.”
Added in version 1.1 of package scribble-lib.