With the new alert dialogue in macOS 10.13.4 going live, Apple is now informing customers about the upcoming requirement for 64-bit apps sometime in the future as well. The dialogue box can be dismissed with the ‘OK’ button or users can click ‘Learn More…’ to access a newly published explainer document on 32-bit app compatibility with macOS High Sierra.Īpple warned developers back in June that a future update to macOS after the current High Sierra update would not run 32-bit apps ‘without compromise’, and 64-bit has been required for both app submissions and app updates to the Mac App Store since January 1. The alert will appear once per app when a user launches 32-bit software for the first when running the current macOS version.
After previously testing in beta, Apple is pushing a new 32-bit app warning live for users on macOS 10.13.4 starting at midnight local time.
