The latest version of NB GPSMaster is 1.1.5 and available as an update to 1.1.6 from the main menu bar. However, the software downloads and updates its files and modules, but there is nowhere specified about the changes in any of the versions. There is a quick guide and that's it, no other files or release notes.
Also, no website is available to obtain additional information or details about the release notes/changelog.