"Rev 1-0" implies this is the first revision of the 251 build, making it a NEW cumulative update. It is highly recommended for all Delphi DS users.
: A data-logging tool that records multiple live data values during a test drive for later analysis. Intelligent System Scan (ISS) Delphi 100 251 Rev 1-0 Software Download -NEW
: Support for OBD-II standard vehicles manufactured from 1996 through approximately 2014. Installation and Technical Considerations "Rev 1-0" implies this is the first revision
This release is designed to support: