The latest software version for the iCharger 308Duo, 406Duo, and 4010Duo is version 2.17 released January 12, 2015.
The revision history can be downloaded here:
To update your iCharger download and install the upgrader software (compatible with Windows XP, Vista, Windows 7, & Windows 8):
Now install the update file for your iCharger using the included USB cable:
• A step-by-step walkthrough of how to update your iCharger. Note: Device driver installation not required for the iCharger 4010Duo, 406Duo, or 308Duo
The latest version of LogView version 126.96.36.1991 (released April 29, 2014) for use in viewing iCharger, CellLog 8S, or PowerLog 6S data is available for download here: