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macOS Mojave beta 2 Release Notes

macOS Mojave

macOS Mojave beta 2 is pre-release software. Do not use this pre-release software in a commercial operating environment or with important data. You should back up all of your data before installing this software and regularly back up data while using the software.

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.

Notes and Known Issues

New Issues

  • When using a MacBook (Early 2016 or newer) in clamshell mode attached to an external display, users might experience graphical artifacts on the built-in display if the clamshell is reopened.
    Workaround: Choose Shut Down from the Apple menu to power off your MacBook then turn it back on by pressing the power key.
  • Certain displays might be unusable with Mac Pro mid 2010 and mid 2012 models due to graphical artifacts.
  • Connecting an unsupported USB-C display might cause the built-in display of your Mac to turn off.
    Workaround: Disconnect the unsupported display.
  • Installation on iMac configured with a 3TB Fusion Drive is not currently supported.
    Workaround: Install macOS Mojave beta to an external drive.
  • After updating to macOS Mojave beta 2, you might be unable to proceed through Setup Assistant.
    Workaround: Hold the power button down until your Mac turns off then press it once to power it back on.

Resolved Issues

  • Recently added users might not be displayed at the login screen on Macs with FileVault enabled.
  • Applications might crash when launched by another process.
  • Aperture might crash on launch.

Known Issues

  • Location Services and its System Services might be disabled.
    Workaround: Use the Privacy tab of Security & Privacy System Preferences to enable Location Services and authorize System Services.
  • Dashboard widget backdrops might display visual artifacts.
  • Migrating from Microsoft Windows requires a new version of Windows Migration Assistant which will be available in an upcoming beta.
  • iMac Pro might be unable to boot from certain types of external media.
  • iOS devices running versions earlier than iOS 9 might not be recognized by macOS Mojave
  • When beginning installation of macOS Mojave beta on iMac Pro, your Mac might shut down instead of rebooting.
    Workaround: Press the power button once to continue installation.

32-bit Deprecation
New Issues

  • Unsigned 32-bit processes might hang on launch.
    Workaround: Relaunch the process.

New Features

  • 32-bit processes will now trigger an alert on launch.
  • Users can review 32-bit processes using the System Information application. The Software > Legacy Software report provides an overview of impacted software.

Known Issues

  • The presentation of certain 32-bit deprecation alerts might be delayed for some time after an application is launched.


  • Administrators are encouraged to review root-owned daemons and processes on behalf of non-administrator users, as these users may lack permissions required to resolve previously-installed 32-bit dependencies.

New Issues

  • AirDrop might not work in some apps.

Apple File System (APFS)
Resolved Issues

  • The APFS file defragmenter new in macOS Mojave is currently disabled and will be enabled in an upcoming beta.

Known Issues

  • After enabling or disabling FileVault, the volume will become invisible to pre-macOS Mojave systems until the encryption or decryption process completes.

Date & Time
Resolved Issues

  • Time Zone settings might require manual adjustment using Date & Time in System Preferences.

Disk Utility
Resolved Issues

  • Attempting to create new partitions on APFS-formatted Fusion Drives might result in error “Target disk too small for this operation.”

Known Issues

  • Important: Do not use Disk Utility while booted from Internet Recovery to erase an APFS Fusion container.
    Workaround: Use Disk Utility while booted into macOS Mojave.

New Issues

  • Users might be logged out unexpectedly when disconnecting an eGPU.

FaceTime and Messages
New Issues

  • Group FaceTime calls can’t be initiated between macOS Mojave beta 2 and the first iOS 12 beta release.
    Workaround: These users should update to iOS 12 beta 2.
  • Automatic enlargement of the speaker’s tile during a Group FaceTime call is not enabled while using external headphones.
    Workaround: Use the built-in speaker of your Mac.
  • Mac Pro mid 2010 and mid 2012 models might be unable to login to FaceTime and iMessage.

Resolved Issues

  • Group FaceTime is unavailable in macOS Mojave.

Find My Mac
Resolved Issues

  • Find My Mac might be unable to determine the location of your Mac.

New Issues

  • Inviting iOS 11 users who have multiple email addresses associated with their Apple ID to a home might not succeed.
    Workaround: Send the invitation to a different email address or phone number associated with the Apple ID of the iOS 11 user.

New Issues

  • When using Mac Pro mid 2010 and mid 2012 models, iTunes might unexpectedly quit on launch.

Resolved Issues

  • iWork apps might quit unexpectedly when displaying the first launch panel.
    Workaround: Ensure your iWork apps are updated to the latest version.

New Features

  • British English, Australian English, Canadian French, and Hong Kong Chinese (Traditional) localization has been added to macOS Mojave.

New Issues

  • When using Right-to-Left languages such as Arabic or Hebrew, New Built-in Mac Apps (News, Stocks, Voice Memos, and Home) order Menu items Left-to-Right instead of Right-to-Left.

Known Issues

  • Certain languages might exhibit clipped or misaligned layout.
  • Certain languages might display unlocalized text

Mac App Store
Resolved Issues


  • The Ask to Buy feature is unavailable in macOS Mojave beta.
  • Purchased history might be unavailable. Known Issues
    • Some users might encounter “Cannot connect to App Store.” after switching store locales.
      Workaround: Launch Terminal and execute the following command:
      defaults delete com.apple.appstore.commerce


    • The Stationery feature has been removed.

    New Issues

    • The appearance of Maps displayed within 3rd Party Apps isn’t dynamically updated when the Dark Map appearance setting is toggled in the Maps app.

    Resolved Issues

    • On certain Macs, Maps locations within applications might appear black.

    New Built-in Mac Apps
    New Issues

    • Voice Memos might not sync between devices even when enabled via System Preferences > iCloud > iCloud Drive > Voice Memos.
    • Users might hear an unexpected ‘pop’ sound at the beginning of Voice Memos recorded using macOS Mojave beta.
    • News, Stocks, Voice Memos, and Home might not launch.
      Workaround: Restart your Mac.
    • After dragging the playhead within a Voice Memo, the Replace button might not resume recording.

    Resolved Issues

    • On Macs with a Force Touch trackpad, News and Stocks might quit unexpectedly when you Force click text to look up the definition of a word.
    • Sharing and editing in Voice Memos is unavailable in macOS Mojave.

    New Issues

    • When using Mac Pro mid 2010 and mid 2012 models, Notes might unexpectedly quit on launch.

    Resolved Issues

    • Certain images might appear blank.

    New Features

    • 3rd Party Apps cannot access protected storage unless they are added to the Application Data category located in the Privacy tab of Security & Privacy System Preferences.

    New Issues

    • Although users may grant 3rd Party Apps permission to access protected storage, currently there is no method for granting permission to helper services or background daemons of these apps.

    Safari and WebKit
    Resolved Issues

    • Websites might be unable to prompt users to accept push notifications.
    • When Dark Mode is enabled, certain web pages might display a dark background.
    • Newly installed or modified content blockers might not run in Safari.
      Workaround: Use Safari Technology Preview for testing.


    • Legacy NPAPI browser plug-ins are no longer supported in Safari, with the exception of Adobe Flash. These plug-ins will not be loaded and cannot be re-enabled.

    Social Network Integrations

    • macOS Mojave no longer includes built-in integrations with social networking and media sites. Developers may use a sharing extension if this functionality is desired.

    Text Input
    Resolved Issues

    • The Option+Return shortcut to select Chinese characters while typing in Korean is unavailable in macOS Mojave.


About BjTechNews (1056 Articles)
An IT guy trying to learn everything about technology and sharing it with you all. I'm a blogger and video blogger who highlights daily news in the tech industry, promoting tips and hacks for fellow techies.

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