The release of iOS 11 is the beginning of the end for applications that have not yet been upgraded to 64-bit processors today. Apple has been insisting this community for a couple of years so that its applications adapt to this type of processors, but it seems that not only does it want iOS applications to be compatible with 64-bit processors, but now it is their turn to the macOS ecosystem. The guys from Cupertino have started sending an email to application developers reminding them of the need to upgrade your applications to 64-bit processors, as long as they want to be present in the Mac App Store.
But Apple has also published on the blog for developers the adaptation deadlines for the applications. In January 2018, all new apps submitted to the Mac App Store will need to offer support for 64-bit processors. As of June 2018, all applications submitted to the Mac App Store for update will also need to be 64-bit processor-enabled. In the same statement, Apple recommends that developers who offer their applications outside the App Store, that the adapt so they can continue to work in the next version of macOS.
According to Apple, High Sierra will be the last version that will allow 32-bit applications to be run without compatibility problems, But with the arrival of the next version of macOS, Apple will not offer support for these types of applications, so its operation will begin to not be as stable as it is today. The guys from Cupertino released yesterday, after many months of waiting, the first beta of macOS High Sierra, the next version of the operating system for Apple Mac computers.