To check which version is in your processor, press the Status/Select button. The list of changes and instructions are included with the download - also be sure to use the latest operating manual. Download D2v Software v2.08
Download ARC Software v2.4 - Includes Utilities, Manuals, and Serial Commands. Mac users: This software can be installed through a Windows emulator and a USB to serial adapter (adapter's driver program must be properly installed)