Macworld

How to find out if your Mac’s software is 32- or 64-bit

One of the major announcements (among many) at Apple’s 2018 WWDC was that macOS 10.14 Mojave, the current version of the Mac operating system, is the last version that supports 32-bit software. With macOS 10.15, only 64-bit software will be supported.

The clock is ticking. We’ll probably see macOS 10.15 this fall, after it’s previewed at WWDC this June. If you decide to upgrade

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