Apple has already pulled the plug on 32-bit apps in iOS with the release of the iOS 11 beta. Now comes news they’ll do the same on the macOS platform.
During its Platform State of the Union keynote at the Worldwide Developers Conference, Apple told developers that macOS High Sierra will be the “last macOS release to support 32-bit apps without compromises.”
Beginning in January 2018, Apple will require all new apps submitted to the Mac App Store to be 64-bit. All apps and app updates must be 64-bit by June of that year.
The next version of macOS, after “High Sierra,” will begin “aggressively” warning its users about the 32-bit app phase out. Apple began doing something similar with iOS 10, and as of the release of the iOS 11 beta, users attempting to open 32-bit apps are met with an alert informing them the app needs to be updated before it is allowed to run on iOS 11.