Apple begins preparing for the end of 32-bit support on macOS

Apple pushing 32-bit app warning live for macOS 10.13.4 as 64-bit transition continues

Mac 32-bit apps support is ending and users are being warned this week that it is time to move on, the tech website Ars Technica reported Wednesday. It no longer accepts 32-bit apps for listing on the Mac App Store so it may not be long before it hammers in the final nail.

macOS High Sierra doesn't actually change anything about the way 32-bit apps run on the Mac, but Apple is encouraging users of 32-bit apps to seek out 64-bit versions or contact developers before the transition is completed.

High Sierra (10.13), the current version of macOS, will be the last version to support 32-bit apps "without compromise".

Companies are actively trying to push developers and users towards 64-bit apps as this has more or less become the standard now for both mobile and computing devices. So how to you tell if your Mac has a 32-bit or 64-bit processor? And until then, there's a chance that the 32-bit apps will not work as well as their 64-bit counterparts as Apple optimizes its operating system updates for 64-bit processing.

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These apps will not be supported in a future version of macOS, Apple cautions.

Your app will still work after the alert appears; the main goal of the alert is to encourage users to update the app to a current 64-bit version. Furthermore, macOS is capable of running advanced 64-bit programs that have access to much more memory compared to 32-bit apps, and can potentially enable faster system performance. To ensure that the apps you purchase are as advanced as the Mac you run them on, all future Mac software will eventually be required to be 64-bit. The alert is similar to the ones that appeared when Apple transitioned iOS from 32-bit to 64-bit. When you select an individual application, you will see a field titled "64-bit (Intel)". "Using 32-bit software has no adverse effects on your data or your computer". So, until Apple shares more details, possibly at Apple's Worldwide Developers Conference (WWDC) in June, it can be assumed that the 32-bit apps will work until then.

Nevertheless, one thing is sure, that Apple is serious about phasing out the 32-bit apps soon. "Yes" indicates 64-bit; "No" indicates 32-bit. In January, Apple mandated that all new apps submitted for review should be 64-bit compatible. Still, users can already check which apps they're running on their Macs need to be updated before the transition happens. Further, a user also gets the option to delete it or keep it, even though the app can't be used, notes CNET. First, the Apple desktop OS has been around longer than the iOS.

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