在系统更新后，系统设置的安全性的允许以下来源的应用程序的"任何来源"可能会被修改为"来自APP开发者"。
操作步骤：
So, I figured it out how to allow apps from anywhere. But learned its the order of operations on how to enable this option has changed. @etresoft was correct and you can still enable the setting, but you must do the following.
Follow the order exactly:
- Open up System Settings
- In System Settings, navigate to "Privacy & Security". Leave Window Open in the Background
- Open up Terminal (as separate window). DO NOT CLOSE System Settings
- In Terminal, run "sudo spctl --master-disable" --> Type Password --> Click Enter
- In System Settings, navigate out of "Privacy & Security" Page (For Example -- Click on "Lockscreen"), then navigate back to "Privacy & Security"
- In System Settings --> Privacy & Security Page --> Scroll Down to bottom --> Select "Allow Application From" --> Select "Anywhere" (the option will now appear) --> Type Password
- Completed
来源：
MacOS Sequoia -- "Allow Apps from Anywher... - Apple Community