Apple Releases Third OS X El Capitan Beta for Developers and Public Participants
The new 15C40a build focuses on fixing bugs and further improving various features: Wi-Fi, graphics, networks, USB, Calendar, Notes, Photos and Spotlight.
Judging by the fact that the previous beta fordevelopers and testers was released only a week ago, the new version of the operating system is close to completion. 3 weeks have passed since the last OS X update (10.11.1), in which 150 new emojis were added.
You can upgrade from the previous beta of OS X 10.11.2 to this on the Updates tab in the Mac App Store. You can also download the update through the Developer Center or on the Apple website after registering for the testing program.
Along with this, iOS 9.2 beta 3 and tvOS 9.1 beta 2 were also released for public testing.