iOS 27, iPadOS 27 and macOS 27 Name Their Devices Three Different Ways

Apple iPhone 18 Pro 2up
Image: Apple

Apple published three device lists for Monday’s updates and wrote each one by a different rule. iOS 27 names models, iPadOS 27 pairs generation numbers with chips, and macOS 27 Golden Gate uses model years plus the phrase Apple silicon.

Apple iPhone 18 Pro Photos app Apple Reference Image
iOS 27, iPadOS 27 and macOS 27 Golden Gate all ship free on September 14. Image: Apple

That matters more than a style note, because the list that mixes two systems is the only one that now disagrees with another Apple page, and the Mac list contains one machine that Apple’s own shorthand cannot describe.

ListHow devices are namedOldest entry
iOS 27Model names onlyiPhone 11, iPhone SE second generation
iPadOS 27Generation number plus a chipiPad 9th generation
macOS 27 Golden GateModel year plus Apple silicon2020 notebooks and Mac mini
Apple IntelligenceChips for iPad and Mac, names for iPhoneM1, A17 Pro, iPhone 15 Pro

iOS 27: model names, no chips, no years

The iPhone list runs 32 named models plus one line for “iPhone SE (2nd generation and later)”, from the iPhone Duo down to the iPhone 11. No chip appears anywhere in it, and no year does either.

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The consequence is that the iOS 27 list is the easiest of the three to check and the least informative about why the line falls where it does. Apple puts the chip story in a separate requirement for Apple Intelligence.

Apple iPhone 18 Pro A20 Pro chip
Chip names carry the compatibility rules on two of Apple's three lists. Image: Apple

iPadOS 27: two systems in one line

Apple’s iPad footnote reads “iPad Pro (4th generation and later, M1 and later), iPad Air (4th generation and later, M2 and later), iPad (9th generation and later, A16), iPad mini (6th generation, A17 Pro)”.

Every entry carries both a generation floor and a chip, and the iPad Air line is where it breaks down. Apple’s Apple Intelligence page gives the iPad Air “M1 and later” instead, so the same family carries two different chip floors on two live Apple pages.

The standard iPad line has a second oddity. It names A16, and no standard iPad appears on the Apple Intelligence device list at all, which lists only iPad Pro, iPad Air and iPad mini.

Apple iPhone Duo Siri AI
Siri AI, the feature whose device requirements these lists ultimately govern. Image: Apple

macOS 27 Golden Gate: years, and the one Mac the shorthand cannot cover

The Mac list reads “MacBook Neo (2026), MacBook Air with Apple silicon (2020 and later), MacBook Pro with Apple silicon (2020 and later), iMac with Apple silicon (2021 and later), Mac mini with Apple silicon (2020 and later), Mac Studio (2022 and later), Mac Pro with Apple silicon (2023)”.

Apple’s compressed shorthand for Apple Intelligence elsewhere is “Mac (M1+)”, and that phrase cannot describe the MacBook Neo, which Apple lists on the Apple Intelligence page as A18 Pro. It is the one Mac in the family with an iPhone-class chip name, which is why Apple always spells it out separately.

Chip naming is doing heavy lifting across this launch, as our explainer on the A20 Pro sets out for the phones. On the Mac it produces a list where six entries are dated and one is not.

What the naming choice costs a reader

  • The three lists cannot be compared row for row, because none of them use the same unit.
  • The only compatibility conflict in the family sits in the one list that mixes units.
  • Intel Macs appear on no list and in no published statement, so their absence is unexplained rather than stated.
  • Apple publishes no per-model memory figure on any of these pages, though the higher Apple Intelligence tier depends on one.

The release candidates hint at the same split. iOS 27 and iPadOS 27 shipped release candidates under one build string, 24A435, while macOS 27 has its own, 26A428, and a build number is the closest thing Apple gives to a statement that two of these are one train and the third is not. Both landed on September 9, the day of the keynote we covered live.

What Apple has not said

Apple has not said why the iPad list carries chips when the iPhone list does not, has not reconciled the iPad Air figures, and has not published anything about Intel Macs in relation to macOS 27 Golden Gate.

It has also published no release time for any of the three updates, no download size, and no statement that any of them roll out in stages. Everything above comes from the product pages Apple put up around the September 9 event.

iOS 27, iPadOS 27 and macOS 27 Golden Gate are all dated Monday, September 14, and all free. If any of these lists is corrected, that is the day it will happen.