Use Profile Manager to prevent OS X Beta installations

You can use Profile Manager to make sure that pre-release software is not offered to Macs using OS X.

Prevent OS X Beta installations

Users enrolled in the OS X Beta program can see pre-release Apple software on their Macs. You can use Profile Manager in OS X Server v3.2.1 and later to block access to pre-release versions of OS X Yosemite available from this program.

  1. Type in the preference domain name com.apple.SoftwareUpdate
  2. Enter a key of AllowPreReleaseInstallation
  3. Set the key's type to Boolean.
  4. Leave the checkbox under the Value column deselected. This sets the key's value to False.

After saving these changes, push this profile out to your client systems. Macs using this profile can no longer install pre-release versions of OS X Yosemite from the OS X Beta Program.

If you’re not using Profile Manager, you can create your own profile. Download this file to see an example profile. Distribute your profile to your clients from an email message or a webpage. You can also use over-the-air profile delivery and configuration, or a Mobile Device Management server to distribute your profile.

These steps only block access to pre-release software from the OS X Beta Program. They do not prevent the installation of released versions of OS X.

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