Apple has released the fourth developer beta for OS X El Capitan. Developers can download this update through the Mac App Store on a Mac running the previous beta version, or grab it from the Mac Developer Resource Center.

OS X 10.11 is expected to be released publicly in the fall, adding a number of improvements to the Mac experience. It will feature an enhanced Spotlight search, better window management, Safari improvements like pinned tabs, and performance improvements like bringing Apple's Metal graphics framework to the Mac.