The first item of information on the 'Home' page is the software version that the PilotAware unit is running. Currently the naming convention for Software releases is named after the date it has been released.
Example: 20180520 = 20th May 2018.
PilotAware aims to releases software updates every 3 months, with The cost of software updates is included in the nominal yearly license fee.
If you require more information on updating the PilotAware software, please follow this link.