For the first time since way back in 2000, Apple is letting the public have an early play with its latest OS, the newest of which is OS X Yosemite.
You'll be able to access the beta version of the operating system starting July 24 (that's tomorrow), ahead of its autumn/fall release.
The beta is totally free but you'll need to sign up over on Apple's site. Remember though, this is still in development, so you can expect a few bugs and crashes.
In fact, Apple recommends installing it on a secondary Mac in case, you know, you've just got one lying around.
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Our full preview of Yosemite will be up shortly. Stay tuned...