the product is super old but maybe what you’re looking for is in the change log for BFO’s report generator. it looks like it goes back to the 1st beta release’s in 2001: https://bfo.com/viewtext/products/report/docs/CHANGELOG.txt?title=Big+Faceless+Report+Generator+Changelog or maybe the backing PDFLibrary product: https://bfo.com/viewtext/products/pdf/docs/CHANGELOG.txt?title=Big+Faceless+PDF+Library+CHANGELOG