Apple Releases macOS High Sierra 10.13.1 Beta 3 to Developers

Posted in Apple News, macOS on 18/10/2017 by Chris Hauk


Apple on Tuesday seeded the third beta of the upcoming macOS High Sierra 10.13.1 update to developers. The seed comes a little over a week after they seeded the second beta of the operating system.

Apple Releases macOS High Sierra 10.13.1 Beta 3 to Developers

Registered developers can download macOS High Sierra 10.13.1 from the Apple Developer Center, of via the “Update” tab in Mac App Store on Macs with the proper profile has been installed.

The new beta appears to focus on under the hood changes, such as bug fixes, security fixes, performance boosts and other behind-the-scenes changes. The only front-facing change so far is the addition of new Unicode 10 emoji.

Notes and Known Issues


Known Issues

  • Clients of NSURLSessionStreamTask that use a non-secure connection fail to connect when an error occurs during PAC file evaluation and the system is configured for either Web Proxy Auto Discovery (WPAD) or Proxy Automatic Configuration (PAC). A PAC evaluation failure can occur when the PAC file contains invalid JavaScript or the HTTP host serving the PAC file is unreachable. (33609198) Workaround: Use startSecureConnection to establish a secure connection.

Safari Known Issues

  • Some webmail clients don’t load correctly. (34826998)

Vision Known Issues

  • VNFaceLandmarkRegion2D is currently unavailable in Swift. (33191123)
  • Facial landmarks identified by the Vision framework may flicker in temporal use cases, such as video. (32406440)


Chris Hauk

MacTrast Senior Editor, and self-described "magnificent bastard," Chris Hauk owns Phoenix Rising Services and writes for everyone's favorite "bad movie" website, Big Bad Drive-In.

His first Apple product was an iPod Classic 9 years ago, and he has since added a MacBook Pro, a number of iPads, iPhones, and multiple Apple TVs to his collection.

He lives somewhere in the deep Southern part of America. Yes, he has to pump in both sunshine and the Internet.