This is not quite a novelty. As we have already reported, Apple gave the first warning at the Worldwide Developers Conference (WWDC) 2017 that the current Mac OS, macOS High Sierra, is the latest software to support applications engineered. 32 bits. In the release of macOS 10.13.4, we also commented on this issue.
Just yesterday, Apple published a support article about this transition. In it, the company mentions that all recent Macs have powerful processors powered by 64-bit, and that its main difference (compared to 32-bit ones) is the much lower memory consumption and performance improvements. In addition, she mentions that:
Technologies that define the Mac experience today as Metal graphics acceleration work only with 64-bit applications. To make sure that the applications you use are as advanced as the Mac you run them on, all future Mac software will necessarily be 64-bit.
In addition to the note released, Apple also published a report on the App Store developer page.
While developers are upgrading their applications to this format, Apple has decided to give its consumers a warning through an alert that appears when a 32-bit application is opened, only once stating that the software is not optimized for the Mac. However, it can be used the same way, at least for now.
The company does not provide a deadline when all 32-bit applications will no longer work, however, it suggests that users contact their favorite application developers to learn more about the change if it has not been made. still. The schedule set out in WWDC17 detailed that as of January this year, all new applications should have the 64-bit framework, and by June 2018 all applications submitted to the Mac App Store (and updates) should be with this architecture.
To check if an application installed on your Mac is already 64-bit or not, just go to the menu bar, About This Mac System Reportgo to the area Software Applications and, in the list that appears, check if it says “Yes” in the column “64 Bit (Intel)”, right. If it says “No”, the app in question is still 32 bits and needs to be updated soon.