Is there a possibility to install software that was not "notarized" for macOS Catalina? I have an application that worked on macOS Mojave but cannot be installed anymore on macOS Catalina. I think the developers must "notarize" this software. Checking with spctl -a -vv my.app confirmed that it is rejected.

  1. What can an end user do about it to install it anyway until this process is finished?
  • I'm still able to right-click --> open which presents the option to open along with a cancel option, as in Mojave. – Ezekiel Elin Oct 30 '19 at 3:03

In macOS 10.14 and 10.15, when an app fails to install because it hasn’t been notarized or is from an unidentified developer, it will appear in System Preferences > Security & Privacy, under the General tab. Click Open Anyway to confirm your intent to open or install the app.

See Safely open apps on your Mac from Apple Support.

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