Start64!As announced last year during the WWDC (Worldwide Developer Conference) event, Apple will deprecate support for 32-bit apps in future versions of its macOS operating system for Mac computers.

With the macOS High Sierra 10.13.4 software update released last month, Apple implemented a tool for application developers to test their apps for 64-bit compatibility as 32-bit deprecation is upon us with future macOS releases, and now it looks like users are being warned about 32-bit app compatibility as well.

"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 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," said Apple.