Fifth build of OS X 10.11 El Capitan supplied to Apple's public beta testers

Members of Apple's public beta program can now download the update via the Mac App Store. Because it is pre-release software with bugs yet to be resolved, Apple advises users not to run El Capitan as their main operating system.

Users can opt in to Apple's Beta Software Program at the company's website. It's available for both OS X and iOS.

Tuesday's update arrives two weeks after the fourth public beta of OS X 10.11. The new public beta release is a somewhat strange move for Apple, arriving before an anticipated new developer beta.

Developers remain on their sixth beta of OS X El Capitan, which was released on Aug. 3 —  one day before the fourth public beta became available.

OS X 10.11 El Capitan is somewhat of a polish of last year's OS X 10.10 Yosemite update, refining things that were previously introduced. However, there are a handful of new features in the next-generation Mac update, including Split View, a better Mission Control, and various performance improvements such as Metal graphics processing.