The FileWave Client has a built in mechanism to manage Apple Software Updates. As of macOS Big Sur, this method is now deprecated by Apple and updates are handled via MDM instead.
For devices running macOS prior to Big Sur, this would involve Apple catalogues, downloaded from their server, used to reference which updates are appropriate per device. On Fileset creation, the related PKG installer would be pulled from Apple and then distributed to clients as standard PKG Filesets. Apple provide a catalogue per Major OS Version, listing all possible updates available online.
The FileWave Server would pull the current online catalogues daily and distribute this to clients. Clients would test against this local catalogue and if any updates were deemed necessary, they would be reported back to the FileWave Server. On creation and association of these Software Updates, the client would then instal the updates as per any other standard Fileset.