Ars Technica: The developer beta of OS X El Capitan has been available since WWDC in June, but to get it you needed to sign up for one of Apple's $99-a-year developer accounts. Today, as promised, the company is expanding the beta to include any member of the general public with an Apple ID and the courage required to install it.
The urgent software update affects the most recent two versions of macOS, El Capitan and Yosemite
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El Capitan isn't without its problems...but here are the best tips on troubleshooting those annoying problems.
