If you're a developer and you've ever wished you had magical bots to help you build, analyze, and test your apps, well OS X Mavericks Server can do just that. And Apple has sent out an email saying so:
Take advantage of continuous integration in Xcode by creating bots with OS X Server for Mavericks that automate the process of building, analyzing, testing, and archiving your apps. As the bots do their work on the remote Mac, Xcode on your development machine displays the build and test reports. Bots can generate a regular release for your QA team, be configured to execute on every check-in, and even test your apps on connected iOS devices.
Get a redemption code from the Mac Dev Center to download OS X Server for OS X Mavericks from the Mac App Store.
Anyone trying it out, let me know how it works. (They follow the 3 Laws, right? ...Right?)