Apple Launches macOS Sierra Beta 4

Following the launch of macOS Sierra Beta 3 earlier this month, the company has officially launched a brand new build of its latest and greatest computer operating system, macOS Sierra Beta 4 build number 16A270f, to developers for download and testing.

Similar to the recent Beta release, the fourth beta build of macOS Sierra is also a minor update featuring:

  • Under-the-hood enhancements
  • Performance improvements
  • Other bug fixes
macOS Sierra Beta 4 is now rolling out as a free update through Software Update or via the Mac Dev Center for registered developers.