The QNX CAR platform supports software updates by using Red Bend's vRapid Mobile® FOTA software (v8.0.1.29). You can apply updates from the HMI or the command line.
To apply an update, you'll need a software update package that includes, at a minimum, a delta file. The delta file describes the filesystem changes needed to upgrade your current system to a new version. You can obtain a delta file from your system provider or generate your own. The System Services Reference has instructions on generating a delta file.
If you update your system through the HMI, your update package must also include a manifest file, which you must write. The System Services Reference contains a sample manifest file.