Apple Releases macOS High Sierra 10.13.3 Beta to Developers [Download]

Apple has released macOS High Sierra 10.13.3 beta to developers for testing. The build number is 17D20a. The release contains bug fixes and unspecified improvements.

Installing macOS 10.13.3
● Back up your Mac.
Always back up your data and files before installing beta versions of macOS. If you have
multiple Mac computers, we strongly recommend installing on a secondary system. Backing up
files on a Mac is easy with Time Machine, the built-in backup utility.

● Enroll Your Mac in the Apple Developer Program
Download the macOS Developer Beta Access Utility from developer.apple.com and run the installer. Follow the onscreen instructions to enroll your Mac.


To check if your Mac is enrolled in the Apple Beta Software Program, open the App Store pane in System Preferences for the Mac App Store. If your Mac is enrolled, the message “Your computer is set to receive beta software update” is shown

● Install the macOS Developer Beta
After completing enrollment, install the developer beta from Updates in the Mac App Store. If there is not a developer beta available, you will receive a notification from the Mac App Store when it is released.

● Stop receiving beta updates
To stop receiving macOS beta updates:
1. Open the App Store pane in System Preferences.
2. Click on the Change button next to “Your computer is set to receive beta software updates”.
3. In the dialog that appears, click on Do Not Show Beta Software Updates.

Developers can download the Beta Access Utility from the link below. Please follow iClarified on Twitter, Facebook, or RSS for updates.


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