I have solution! Solution Go to settings of your app to - you can access it by double-clicking on your root of your project in XCode Select your building Targets (left sidebar, there is project on top and targets under it) Here you will find Signing & Capabilities and for all/debug builds (depends on how you are building your app) Switch the Signing certificate from "Sign to run localy" to "Development" (Important!) You will need to enter your password and just do "Use always" or what will be the authentication message and this window will never come back! Why did this happend? My suggestion is that with the new update, the policies of applications on Mac have changed a bit. Before that the developer signing of app wasnt that necessary, now it is. It wil somehow know by your identities, that is your app and you are developing it and even it will change, it will know to allow you to run it. I didn't find any other explanation online, so this is maximum what i can do for you. If someone will find better reason why this is happening, white it here! (Also, sorry for my bad english) Šimon

I have same problem now! I dont have a solution to solve it, but if you have some new info, i will appreciate it like a lot. It is very frustrating