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Apple issues second beta of OS X 10.11 El Capitan to developers

Just over two weeks after OS X 10.11 El Capitan was made official, Apple has supplied developers with the second beta of the new Mac operating system set to launch this fall.

Identified as build 15A204b, El Capitan beta 2 is now available to download through Apple's developer website. The pre-release software is intended for testing purposes only, and Apple cautions that it should not be used in a commercial operating environment or with important data.

A number of known issues unsurprisingly remain in the second beta of El Capitan, including problems when upgrading from OS X Lion or earlier. Issues are also present in Aperture, Disk Utility, iCloud Keychain, iPhoto, iTunes, Mail, Networking, Photos, Printing, SpriteKit, USB, Wi-Fi, and Language.

El Capitan is compatible with all Macs that can run OS X 10.10 Yosemite. While it is currently in beta, it will be a free upgrade available to Mac owners via the Mac App Store this fall.

Intended as mostly a refinement of Yosemite, El Capitan will still include a handful of new user-facing features. Most notably, the operating system includes a two-app viewing mode dubbed Split View, allowing users to quickly split screen space between two running apps.

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Apple has also tweaked Mission Control in El Capitan, making multi-window desktop management simpler. Mission Control now arranges open app windows relative to their positioning on the desktop.

10 Comments

exsangus 13 Years · 29 comments

This beta 2 no longer supports Xcode 6, so you will have to upgrade to Xcode 7 beta if you want to continue developing on a machine running El Capitan. So far seems to be a stable build.

howmanoid 10 Years · 14 comments

Running it without probe on a 12' MacBook. A bit laggy in places but that's betaware for you. Like the new window management and the ability to make/recv phone calls over wifi.

dewme 11 Years · 5937 comments

Curious to hear where others are seeing lagginess. I'm running El Cappy it on a mid-2011 MacBook Air with only 4GB RAM and it seems very stable and rather snappy. If this is beta quality I can't wait to see the final release. If you've been waiting for new release with a focus on robustness and stability rather than a slew of features your ship has come in.