OS X Yosemite Public Beta Now Available

今天蘋果發表了 OS X Yosemite ( 優勝美地 ) 10.10 的 BETA 試用版了, 任何人都可以下載試用

In line with yesterday’s announcement, Apple today made available a pre-release version of OS X Yosemite to consumers who signed up for the company’s OS X public beta program. Public beta program members can access promo codes through the beta program website that allow them to download Yosemite from the Mac App Store for free.


Early reviews of the pre-release build are favorable, with several reviewers noting improvements in Safari, Messaging and Notifications. Notably missing from the beta, however, are the highly anticipated Continuity features that allow for the integration of OS X with an iPhone or iPad running iOS 8, as only Yosemite is included in the program.

To sign up for the beta program, users must have a Mac running OS X Mavericks and need to register with an Apple ID on Apple’s website. Apple cautions members to install the OS on a secondary Mac as it is beta software and may cause unexpected errors or other issues. Enrollment in the beta program is limited to the first one million registrants.

MacRumors readers who want to discuss the beta can do so in our Yosemite forum, which has tips on troubleshooting, comments on new features, and more.

Apple is expected to release OS X Yosemite to the general public later this year, possibly following an October event that also may be used to unveil the iWatch and new iPad models.

In case you haven’t received an email telling you that your beta download is waiting for you, you can go ahead to Apple’s website here (the Yosemite beta page) and log in. Once that’s done, a page with instructions should be available, alongside a download link and a redeem code.

The download link takes the user straight to Apple’s Mac App Store where the redeem code will be filled in automatically, at which point the download will start.

The Yosemite install is a 5.07GB download, which means it’ll take a while to complete so make sure you have enough storage space and enough battery left on your Mac. Once the download is finished, users will be able to install it on their machines.

Apple advises users to back up data on their Macs before performing the install, and