Apple To Mac Users: We Will End Support For 32-bit Apps

Apple To Mac Users: We Will End Support For 32-bit Apps

Apple To Mac Users: We Will End Support For 32-bit Apps

When you download macOS 10.13.4 and open a 32-bit app, you'll receive a notification that tells you the software is "not optimized" for the Mac.

In the meantime, Apple says that using 32-bit apps on macOS High Sierra 10.13.4 will have "no adverse effects" on computers or user data. To help explain what is going on, the message features a Learn More button.

Apple 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.

Apple is transitioning into 64-bit territory simply because apps built under this architecture are much easier to maintain, and perhaps because these apps are far more efficient than their 32-bit counterparts. Make sure future releases of your app are 64-bit compatible by using new diagnostic tools in Xcode 9.3 beta and testing on macOS 10.13.4 beta.

Users can check which apps are 32-bit or 64-bit by going to About this Mac and pressing System Report, scrolling down to Software and then selecting Applications. Still, when the big day finally rolls around, there will nearly certainly be complaints nonetheless. "The alert box's message reads: "'App' is not optimized for your Mac.

macOS has been 64-bit for years, but also supports 32-bit apps.

"At our Worldwide Developers Conference in 2017, Apple informed developers that macOS High Sierra would be the last version of macOS to run 32-bit apps without compromise", says the support page. Apple decided years ago to transition into 64-bit processors exclusively for the Mac, as well as the iPhone and iPad. "The developer of this app needs to update it to improve its compatibility." .

Start by navigating to the Apple logo in the top-left corner of the screen, clicking on it, and selecting "About This Mac". The technologies that define today's Mac experience-such as Metal graphics acceleration-work only with 64-bit apps.

Apple started that process in 2013 with its first 64-bit mobile processor, the A7. The information will be displayed only once and won't include any mention of if or when exactly Apple will nix 32-bit application support from its operating system, according to Computerworld.

What it isn't doing, however, is telling anyone when the 32-bit/64-bit split will actually arrive.

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