With your Mac ready, head to the Apple Beta Software Program site. With Time Machine, Apple couldn't make it any easier to create a backup. (Apple will do the same thing when you arrive at its Beta Software Program page). According to Apple, the following models are compatible:Įven if you are installing it on a partition or on an old Mac that is no longer mission-critical, I would strongly urge you to back up your Mac before installing the public beta. If you are going to use an old Mac, first make sure it can run High Sierra.
You can leave the Format as Mac OS Extended (Journaled, Encrypted).
If you can't wait, I suggest you install the beta on a secondary Mac if you have one or, failing that, on a separate partition on your primary Mac. As with any beta software, you may run into some issues and odd behaviors with MacOS High Sierra that should have you thinking twice about jumping in now instead of waiting for the final release to arrive this fall. All you need is an Apple ID.īefore you go out and update your Mac with the beta, however, you should use some caution. Apple has released the public beta of MacOS High Sierra, which means that you don't need a developer account to check out the next version of MacOS.