I have tried to update my Logos three times now and it keeps saying there is an update error.
Josh,
There was an issue with the Beta version we uploaded last night. You can get the updated version here: http://downloads.logos.com/LBS4/LBS4MacInstallerBeta/4.30.0.0130/Logos4Mac.dmg
Just drag the Logos 4 Icon to your applications folder and you should be good.