Home » Mac » Apple releases security update for macOS Mojave and High Sierra Mac Apple releases security update for macOS Mojave and High Sierra egadget March 26, 2020 1 View 0 Along with the release of macOS Catalina 10.15.4 , Apple has released security updates 2020-002 and the Safari update for macOS Mojave and High Sierra . To update macOS Mojave, go to System Preferences → Software Update . If you have High Sierra: open the Mac App Store → Updates . MacOS Catalina 10.15.4 Released, & Security Updates for Mojave & High Sierra Apple has released the final version of macOS Catalina 10.15.4 to all Mac users. The latest release of macOS Catalina includes bug fixes and enhancements, and also includes support for iCloud Drive? osxdaily.com