I wasn't sure if it was going to be an issue but sure enough after you apply the security update and restart (it donesnt force a restart but dont be deceived) the nvidia driver does not load because the build is different. just a heads up; theres no driver update from nvidia at time of me writing this. https://support.apple.com/en-us/HT208315 *Update* Script provided in post #17 which will set the driver to use the new version and load correctly, until nvidia comes out with a proper update. *Update 2* Driver released! go ahead and check for updates in the Nvidia control panel and you should be all set!