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Which Macs will run Apple's macOS Big Sur?

Even as Apple abandoned the “X” for this year’s macOS upgrade, it retained the odd-even cycle for the refresh’s system requirements, knocking older systems in its MacBook, Air and iMac lines from the list able to run the operating system.

On Monday, the Cupertino, Calif. company unveiled mac OS 11, aka “Big Sur,” at a virtual Worldwide Developers Conference (WWDC). Apple dispensed with the numeral 10, expressed with the “X” it had used for its desktop operating system since 2001, moving up a whole number rather than the traditional tenth (which would have made Big Sur macOS 10.16). The free upgrade will ship this fall, almost certainly in September or October.

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macOS 11 will introduce a new look and design, one that Apple argued was the biggest change since the debut of OS X. It will also be the first desktop OS to run on the ARM-based systems Apple will begin rolling out later this year and in 2021.

This year’s even

Apple has used an odd-even cadence for its operating system upgrades’ requirements, alternately retaining the prior year’s models on the newest version’s support list in odd-numbered years with odd-numbered editions, as in 2019’s Catalina, macOS 10.15, and dropping models from the list during even-numbered years with even-numbered editions.

Big Sur would have been 10.16 if Apple had hewed to tradition, but it’s still an even-numbered upgrade because of its year. So it wasn’t a surprise when the system requirements were narrowed for the new OS.

According to Apple, these Macs will run Big Sur:

Copyright © 2020 IDG Communications, Inc.

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