Together with the watch OS 2.2 and iOS 9.3 beta 6 release, Apple also needed the sixth developer (and public) beta of OS X 10.11.4 to developers. The new beta is available to get through the Updates tab in the Mac App Store using a previous version of the El Capitan beta, which is accompanied by a standalone installer on Apple’s portal for developers.
How To Download And Install OS X El Capitan 10.11.4 beta 6
Step#1 Head over to the beta.apple.com.
Step#2 If you are enrolled in the Apple Beta Software Program already then click on ‘Sign In,’ if not then click on ‘Sign Up.’
You can also download the from a free third-party linkDownload OSX El Capitan Public Beta
Step#3 Enter your Apple ID credentials to sign in.
Step#4 Simply click on the ‘Enroll Your Devices’ button on top of the Apple Beta Software Program website.
Step#5 Scroll down and click on the blue ‘Download OS X El Capitan Public Beta’ button, which will open up the Mac App Store. Make sure you note down the ‘redemption code’ underneath it.
Step#6 Enter your redemption code in the small box below the ‘Redeem Code’ page. Click on ‘Redeem’ once you’re done.
If everything was performed correctly, then the OS X 10.11 El Capitan Public Beta installer will begin downloading. You can check its progress by either bringing up Launchpad, or by clicking on the ‘Purchases’ tab in the Mac App Store.
The company is rumored to hold a media event this month on the 21st, and should unveil the new 4-inch iPhone SE, a smaller 9.7-inch iPad Pro and new Watch bands.
If Apple’s upcoming media event is like previous events, the upcoming iOS 9.3, OS X El Capitan 10.11.4, tvOS 9.2 and watchOS 2.2 should release after the event.