"Installation Note: The installer requires System Preferences to be launched during the installation process. Do not manually close System Preferences until after clicking Allow in the Security & Privacy Preferences, later in the process.
The installer also requires rebooting the system after the installation process. Do not launch any other applications until the process is complete and the system has been rebooted.
New in Release 3184.108.40.206.40.124:
(What follows the above on the D/L page is the same info as the previous drivers, so I won't repeat it all here.)
IMPORTANT: This graphics driver update contains a security improvement in the NVIDIA Driver Manager preference panel via a new Developers Tab.
If you have the previously recalled 3220.127.116.11.15.108 Web Driver installed, it is necessary that you uninstall that driver completely and replace it with this. See the Additional Information section for more details...."
The "Additional Information" tab on the download page has a step-by-step install guide.
(If you can't select the page's 'Accept' terms/conditions button, here's a direct download link.)
(As of post time, the download page's CUDA link goes to CUDA 418.105 from Feb. 27th, but check for CUDA update in Nvidia prefs in case there's anything later.)