The number frequently appears in technical manuals and professional "papers" as a section header rather than a software version:
: This section in naval manuals often describes the use of paper forms (like RPCCRs) that must be completed and scanned into PDF formats for maintenance close-outs. Academic or Professional Papers Cleaner-App Pro 8.2.3
If you are looking for a research paper regarding "cleaner" technologies, "useful paper" might be a literal description of a document such as: The number frequently appears in technical manuals and
If you are referring to a specific document or a particular version of a software tool, Cleaner-App Pro 8.2.3