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Tahoe is the last release that supports Intel Macs!
- Thread starter nortonandreev
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And then Snow Tahoe will release next year and strip the Intel code out 
Coincidentally macOS Tahoe is the latest release that supports Apple Silicon Macs too!
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The drop of 2020 MacBook Air feels slap in the face to lots of people. The 2020 Intel MacBook Air was released about half years before the M1 MacBook Pro and it is got dropped. The 2019 Mac Pro was sold all the way until 2023. So if someone brought a Intel Mac Pro in 2023, they only gets 2 OS updates.. and 4 years of support. And Mac Pro isn't cheap
Did they actually announce that during the WWDC keynote? If so, that's unusually courteous for Apple. In the past, they dropped support without notice. I don't think we had any notice prior to Snow Leopard being released that 10.5 was the last version of Mac OS X to support the PowerPC architecture.
Edit: Never mind – I see this is from the Platform State of the Union address.
Edit: Never mind – I see this is from the Platform State of the Union address.
Yeah, that was a bit weird. It's before the 6-7 years of major OS updates that most Macs get. My guess is the four cores on Ice Lake were just too weak.
Support is always based on product launch date rather than last sold date.
How can you be happy about that ? The most recent intel mac was just released 5 years ago, its not that long. Many poeple are mad about Microsoft stopping support for Windows 10 because it will make many computer still very usable obsolete, and you, you're happy that a trillion-rich company stop supporting a 5-6 years old computer that people pay a lot of money on it?
It change nothing to silicon macs owners if Apple still release update for intel macs and people don't change their computer as often as their cell phones.
The reason that Apple provided in its Platform of State Union, is that Apple wants to focus on Apple Silicon and provided features centred with Apple Silicon
But I feel supporting Intel doesn't contradict with that goal. Intel Macs only gets fraction of new features anyway, so Apple could have easily update Intel with more version updates.
I guess they really want people go purchase shiny new Apple Silicon Macs.
I feel some of Mac users, want macOS to be as light as possible, stripe away any code related with Intel.
But I would say, Apple could just disable codes related with Intel, rather than remove them all together. It probably easier and cheaper.
Anyway, Apple has every financial incentive to stop supporting old Intel machines and some Mac users wants macOS without Intel code.
Although I am kind not happy with Apple ditching Intel this fast, but my Macs from 2013 all the way up to M4 Mac mini are running macOS Sequoia. Once the OCLP is updated for macOS Tahoe, there will be two more years of security updates. I will see my option three years down the road.
Who cares. OS updates are thoroughly overestimated, IMO, - especially those with little UI novelty, which might be the case for quite a while now.
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IMO the true slap in the face happened when the MP was touted as the new 8th wonder of the world (along with that pricey monitor stand) and a return of the proper, expandable Mac Pro - and a few months later they announced their platform transition and made clear that it's a dead end and they would be switching to fixed memory and abandon PC GPUs. Heck, make that an uppercut followed up with a swift kick to the groin.
It is because iMac Pro has Skylake based CPU. It looks like macOS Tahoe dropped all 8th generation of Intel chip. The only Coffee Lake processor left is the 16 inch 2019 MacBook Pro.
However, 2020 MacBook Air with 10th Generation of Intel processor get dropped by Apple. The MacBook Pro 2019 15" also has 9th Intel processor also get dropped.
So the reason of dropping such large number of hardware is unclear. It seems that Apple just wants to drop as much Intel Mac as possible.
I don't think that, post Haswell, the generation of Intel chip is important in determining support or not. They all, I think, support the same instruction set.
The Apple T2 security chip is a more important change to Apple because it brings a boot (and encryption) security framework which is common to T2 Intel and Apple silicon. I suspect that Apple wanted to do this last year, but were persuaded to continue supporting the last non-T2 Mac - the 2019 iMac.