![]() ![]() What’s going on here, what should you do, and when should you do it? What’s Going On: 32-bit and 64-bit AppsOver a decade ago, Apple started to transition all the chips used in Macs, along with macOS itself, from a 32-bit architecture to a 64-bit architecture. ![]() Without getting into technical details, 64-bit systems and apps can access dramatically more memory and enjoy significantly faster performance.Apple knew it would take years before most people were running 64-bit hardware and 64-bit-savvy versions of macOS, so it allowed macOS to continue running older 32-bit apps. ![]()
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