Apple released macOS 27, named Golden Gate, on September 14, 2026. The headline spec is not a feature: it is the first version of macOS built to run exclusively on Apple silicon. Every Mac with an Intel chip — no matter the year, no matter how much it cost — is left on the last version it can run, permanently.
That is a harder cutoff than the one before it. macOS 26 Tahoe, released a year earlier, still supported a handful of 2019 and 2020 Intel Macs at the high end. Golden Gate supports none. If your Mac has an Intel processor, this update was never going to install, and no future one will either.
Which Macs actually get it
Apple's own compatibility list — the same one echoed across every major Mac outlet covering the release — limits Golden Gate to Apple-silicon hardware from 2020 onward: MacBook Air and MacBook Pro models with Apple silicon from 2020 on, iMac from 2021, Mac mini from 2020, Mac Studio from 2022, and the 2023 Apple-silicon Mac Pro, alongside the new MacBook Neo announced this year. If your Mac shipped with an M-series chip, you are very likely covered. If it shipped with an Intel chip, checking the year will not change the answer.
The other deadline hiding inside this one
Even Apple-silicon owners have a countdown running, just a quieter one. Rosetta 2 — the layer that translates old Intel-built apps so they run on Apple silicon — was never meant to be permanent. Apple said as much at its WWDC 2025 Platforms State of the Union: Rosetta would stay available "as a general-purpose tool" through macOS 27, and after that only a narrow slice survives, aimed at older games that depend on Intel-based frameworks. Golden Gate is that last general-purpose version. If you run an M1 or M2 Mac and still depend on one Intel-only app — an old plugin, an unmaintained utility, a piece of studio software its developer stopped updating — this is the last major release where that app is guaranteed to open at all.
What does not change
An Intel Mac that already runs Tahoe keeps running Tahoe. Nothing about Golden Gate reaches backward to break an installed system, and Apple's usual pattern is to keep shipping security-only patches for the previous version for a stretch after a cutover — typically a year or two, though Apple has not published a specific end date for Tahoe's patches yet. That is a grace period, not a reprieve: no new features are coming to an Intel Mac again, from Apple or, eventually, from the developers who stop testing against an OS Apple no longer updates.
The same shape, a different company
Windows users are living a version of this argument right now with Windows 10's own support deadline, and the contrast is informative. Microsoft, facing backlash, quietly bought its holdouts an extra year of free security updates. Apple has offered Intel Mac owners no equivalent: no extension, no paid bridge program, just the date on the download page. Whether that gap is a business decision or the two companies simply owing different debts to different install bases is not something either has said — but the practical difference for someone deciding what to do with an aging Mac tonight is real.
What to actually do about it
If your Mac is Apple silicon, install when convenient; there is no rush, and nothing about Golden Gate breaks what already works. If it is Intel, the machine is not broken and does not need replacing today — Tahoe still receives security patches for now — but it has stopped moving forward, and the decision about what eventually replaces it is now a "when," not an "if."
If you are weighing whether an old Mac is worth keeping at all, the calculation is close to the one Galaxy owners are running this same week — a software calendar that quietly decides how much longer a working device stays current. Neither company is taking the machine away from you. Both are deciding, on their own schedule, how long they will keep building for it.
Last updated September 22, 2026