In the Sierra Public Beta, Apple has changed the settings for running downloaded apps. If you really need to run that app and can’t figure out how, it can be frustrating. The settings are found in the General tab of the Security & Privacy system preference.
Note: This article was written using the Sierra Public Beta. It will be updated for each OS update, as well as for the final release in the fall.
To understand the changes, let’s look at what was offered before Sierra. Previously (or currently, if you’re not running Sierra), in El Capitan. the setting looked like this.
“Allow apps downloaded from” has three settings:
The major change is that Apple removed the Anywhere setting. If you had this setting selected in El Capitan and you’ve upgraded to Sierra, you won’t be able to open downloaded apps like you’re used to.
If you want to open an app that you didn’t buy in the Mac App Store and instead downloaded it from a developer on the internet, there are two way for opening the app.