Apple has released OS X 10.11.4 Beta 5 to developers and also to their beta testing program, in order to try out the software you either need to be a registered developer or enrolled in the Apple beta test program.
OS X 10.11.4 Beta 5 comes a week after the last beta and a bring a range of new features to Apple’s Mac range of computers.
Some of the new features included in OS X 10.11.4 Beta 5 are the ability to share Live Photos that have been recorded with the iPhone 6S and 6S Plus.
We are expecting Apple to release OS X 10.11.4 later this month along with iOS 9.3, they should land around the same time as the new iPhone SE and 9.7 inch iPad Pro. As soon as we get some more details on the exact release date, we will let you guys know
Source 9 to 5 Mac