CTS Recommendation for macOS Catalina (10.15)

macOS Catalina

Apple released its newest operating system, macOS Catalina (10.15), on Oct. 7. Anyone using an iMac or MacBook device can upgrade to macOS Catalina for free through the App Store.

Recommended Actions

University-Managed Apple Devices

At this time, macOS Mojave (10.14) is the current operating system supported on university-managed Apple devices. CTS strongly recommends not upgrading to macOS Catalina on university-managed Apple devices.

If you believe you need to upgrade to macOS Catalina, contact the CTS Help Desk at 412.396.4357 or help@duq.edu.

Personally-Owned Apple Devices

Before upgrading to macOS Catalina on a personally-owned Apple device, CTS recommends adopting a "wait and see" approach. When a new operating system is first released, bugs and compatibility issues are often discovered. Use an earlier supported version of macOS until these bugs and compatibility issues are identified and fixed.

CTS also recommends backing up important files and data to an external drive prior to performing any major operating system upgrade. Doing so ensures your data is preserved in case the upgrade does not complete successfully.

Important Information About macOS Catalina

macOS Catalina no longer supports 32-bit applications. Upgrading to macOS Catalina may cause some existing applications on your device to stop functioning. Before upgrading to macOS Catalina, you will be shown a list of 32-bit applications installed on your Apple device. You can also determine whether an application is 32-bit or 64-bit by doing the following:

  1. Click the Apple icon in the top left corner of the screen.
  2. Select About This Mac.
  3. Click the System Report button located at the bottom of the window.
  4. Click Applications under the Software section on the left side of the window.
  5. Once the list of applications populates, scroll to the right to locate the 64-Bit column.

macOS Catalina also features new applications for music, TV and podcasts as well as cross-functionality with iPad devices. To learn more about what's new in macOS Catalina, visit www.apple.com/macos/catalina.