The latest Ranger 2 software version is V6.04.04
The release notes for Ranger 2 software can be viewed below:
V6.04.04 (can only be installed on a PC running Windows® 10 OS and only supports Sonardyne 6G equipment)
V6.04.02 (can only be installed on a PC running Windows® 10 OS and only supports Sonardyne 6G equipment)
V6.02.04 (can only be installed on a PC running Windows® 7 OS and only supports Sonardyne 6G equipment)
V4.06.03 (can only be installed on a PC running Windows® 7 OS and supports Sonardyne 5G and 6G equipment)
For more information, please contact Sonardyne Support.