Apple just released the OS X 10.11.2 beta 5 (build 15C48a) for developers beta 4 was released on 11/17, about two weeks ago.
Again Apple asks that the focus of testing the new version be directed to the following items: graphics, Mail, Wi-Fi, Calendar, USB, Notes, Photos, Spotlight and network.
For now, the second major update of OS X El Capitan does not bring any visible changes, provided only with general improvements and bug fixes throughout the operating system.
Update · 11/30/2015 s 16:28
The new build is also available for Apple Beta Software Program participants.