Public beta testers get Apple's second build of OS X 10.11.4

The second pre-release beta of OS X 10.11.4, a forthcoming minor update for the El Capitan Mac operating system, is now available to test for members of Apple's public beta program.

OS X 10.11.4 beta 2 arrives two days after developers were issued the beta. The most noteworthy feature is the ability to view Live Photos taken with an iPhone 6s or iPhone 6s Plus in the Mac's Messages application.

In the new El Capitan betas, Live Photos show up in the Messages timeline and can be viewed in a preview window by double clicking on the image. The pop-up window includes both sound and motion, as well as options to open the Live Photo in Photos for editing and review.

The update also comes with secure Notes, coinciding with the same feature on iOS 9.3.

Developers and public testers alike access OS X 10.11.4 beta 2 through the Mac App Store's Software Update mechanism.