Apple Launches OS X 10.11.5 Beta 4 & Public Beta 4


Following the release of OS X 10.11.5 Beta 3 just one week ago, the company has officially launched a brand new build of OS X El Capitan, OS X 10.11.5 Beta 4 build number 15F31a, to developers for download and testing.

Alongside OS X 10.11.5 Beta 4, Apple has also released OS X 10.11.5 Public Beta 4 to public beta testers. Similar to the previous OS X 10.11.5 Beta 4, the fourth build of OS X 10.11.5 Beta is also a minor update featuring:

  • Performance enhancements 
  • Security improvements
  • Bug fixes
OS X 10.11.5 Beta 4 is now rolling out as a free update through Software Update or via the Mac Dev Center for registered developers, while registered public beta testers will get it via OTA Update or through Apple's Beta Software Program.