Similar to OS X El Capitan Beta 6, the fourth build of OS X El Capitan Public Beta is also considered a minor update featuring enhancement to the operating system, under-the-hood performance improvements, as well as bug fixes. Although both builds did bring a couple of minor changes including a new General icon in the System Preferences app as well as a new blue wallpaper.
OS X El Capitan Public Beta 4 is now available through Software Update or via the company's Beta Software Program for registered public beta testers.
