I checked on the official website and it appears that the latest version for DriverEasy was released on 2018.01.16 and this is the build number: 5.6.0.6935.
There are also some release notes as well which you can check at the following URL. I believe the software has a built-in module for updating. Start it and look in the main menu for an update button. This way you can update directly from the main interface without visiting any other websites.