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.
Apple representatives told the website that 32-bit apps will no longer be supported in future versions of macOS. Apple said on Thursday, users will begin seeing a message when they boot up apps that supports the 32-bit in macOS High Sierra 10.13.4 that reads: "This app needs to be updated by its developer to improve compatibility," per Ars Technica.
"Apple began the transition to 64-bit hardware and software technology for Mac over a decade ago, and is working with developers to transition their apps to 64-bit," Apple said in a statement on its support page Wednesday. "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.
"While developers optimize their apps for 64-bit compatibility, Apple is notifying customers when they are using an app based on 32-bit technology. This is done via a one-time alert that appears when you launch a 32-bit app," Apple continued.
Ars Technica said that Apple, though, has not said when 32-bit apps support would end entirely. The website said that 32-bit apps will still run normally for the immediate future, even though High Sierra is the last version to support 32-bit.
Apple explained that it is making the break from the 32-bit apps because of the advancing technology.
"All modern Macs include powerful 64-bit processors, and macOS runs advanced 64-bit apps, which can access dramatically more memory and enable faster system performance," Apple said in its statement.
"The technologies that define today's Mac experience — such as Metal graphics acceleration — work only with 64-bit apps. 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," Apple continued.
Apple's support document also includes a new "frequently asked questions" section that addresses concerns like potential data loss and 32-bit app support on macOS High Sierra, according to the website 9to5 Mac.
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