Apple has released macOS High Sierra 10.13.4 for Mac users who are running High Sierra on their computers. Separately, Security Updates 2018-002 for MacOS Sierra and Mac OS X El Capitan are also available for Mac users running prior system software builds.
Thanks to OSX Daily
MacOS High Sierra 10.13.4 Update Released, Security Update 2018-002 for MacOS Sierra & El Capitan
