macOS handles all system and driver updates for your Mac.

To check if any updates are available please do the following:

• Click on the Apple in the upper left corner of the screen
  
• Select "System Preferences...", then click "Software Update"
  
• Any available updates will be listed here, or you will be told your software is up to date
  

Please see Apple's support article "Keep your Mac up to date" for more information and for instructions on updating on older versions of macOS.

NOTE: It is recommended that you always keep your system up to date