Apple releases another OS X Server 3.1 developer preview


Apple has seeded a new preview version of the upcoming OS X Server version 3.1. The update has a build number of 12S4122. OS X Server 3.1 is expected to be released at some point in the near future to accompany OS X 10.9.2, which was released last month.

Developers can grab the beta now from Apple’s Developer Center. The seed notes are below:


OS X Server Preview (Build 13S4122) Seed Note
OS X Server Preview (Build 13S4122) is now available for testing on OS X Mavericks 10.9.2 systems.
Minimum System Requirements

To install OS X Server Preview, you need one of these computers:
– iMac (Mid 2007 or newer)
– MacBook (Late 2008 Aluminum, or Early 2009 or newer)
– MacBook Pro (Mid/Late 2007 or newer)
– MacBook Air (Late 2008 or newer)
– Mac mini (Early 2009 or newer)
– Mac Pro (Early 2008 or newer)
– Xserve (Early 2009)

Your Mac needs:
– OS X Mavericks 10.9.2
– At least 2 GB of RAM
– At least 10 GB of available disk space (50 GB if you wish to use Caching Server)

Installation Instructions

Install OS X Server 3.1 Preview 13S4122 on a computer running OS X Mavericks 10.9.2.

This preview supports upgrade and migrations from OS X Snow Leopard Server 10.6.8 and newer to OS X Server 3.1 Preview 13S4122.

Noteworthy Change and Areas to Test

Profile Manager
– New My Devices portal access restrictions and device enrollment restrictions available on Users and Groups
– Activation Lock Bypass Code is retrieved automatically on enrollment of Supervised devices

Known Issues

– Profile Manager will not function following an upgrade or migration from OS X Server 2.x. This issue does not affect an upgrade or migration from OS X Server 3.0 or later.

Bug Reporting

This build is being provided to you for testing and development purposes. Should you encounter any problems, please submit a bug report using the online Bug Reporter at Please make sure to include “OS X Server (13S4122)” in the bug title and description. This information will ensure that your bug is processed quickly.
When reporting a bug, enter the following command in Terminal, then attach the output to the bug report:
$ sudo /Applications/
For complete instructions on submitting bug reports, please visit the Bug Reporting page at
Thank you for your support,
Worldwide Developer Relations
Apple, Inc.

Legal Notices
The OS X pre-release software identified above and the OS X Software Update Seed Configuration Utility are Apple Confidential Information and your use of such software is subject to your Registered Apple Developer Agreement, Mac Developer Program License Agreement, and the applicable license agreements accompanying such software. Distributing such software to anyone other than another Registered Apple Developer who is working for the same entity as you is considered a violation of your agreement with Apple and is damaging to both Apple and those who develop for the Apple platform. We sincerely appreciate your efforts to keep this Apple software Confidential.
You agree that you will not export or reexport any of the software or Confidential Information received from Apple (a) into (or to a national or resident of) any U.S. embargoed countries or (b) to anyone on the U.S. Treasury Department’s list of Specially Designated Nationals or the U.S. Department of Commerce Denied Person’s List or Entity List. You also agree that you will not use said software for any purposes where prohibited by United States law, including, without limitation, the development, design, manufacture or production of nuclear, missile, chemical or biological weapons.

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  1. ikir - 9 years ago

    Wow XServe is still supported! Nice!

  2. Garth Lahana - 9 years ago

    I really hope that the known issue of not being able to upgrade from 2.x is fixed by the time it’s released. For us it is a show-stopper bug as we are still stuck on 10.8.5. with server 2.x because our database has no devices after an upgrade to 10.9.x and server 3.x

  3. Steve Basile - 9 years ago

    When is Apple going to fix the bug in Time Machine on OS X Server? It’s been there for 2-3 versions.