Recently Apple modified macOS management controls and thus our ability to manage macOS updates for you. Certain updates are now required to be applied manually by users. All other software updates continue to be handled by the update management system.
Your computer may currently have macOS updates available. These security updates, which take approximately 20 minutes to install, are recommended for all users.
The ServiceDesk article below describes the process of installing these important updates.
Note: depending on your version of macOS, your computer may not have any updates available at this time.