Compatibility notice

Apple Silicon, macOS, and your desktop software

What Apple's move away from Intel-based apps means for your desktop software — why the alert appears, what actually changes and when, and what (if anything) you need to do.

That message on your screen

If an alert from Apple sent you here, this is the page. Here is what it looks like — on macOS 26 Tahoe and on macOS 27 Golden Gate, the current release (Apple shipped it on September 14, 2026), which words the same situation more sharply and points at macOS 28 by number — a release that is not yet named, and not due until September 2027.

Apple macOS 26 alert titled Support Ending for Intel-based Apps, warning that this version of Rules includes a component that will not work with a future release of macOS.
macOS 26 Tahoe — “Support Ending for Intel-based Apps”, here for Rules.
Apple macOS 27 alert titled App Update Required, stating that this version of Rules includes a component that will not open in macOS 28, the next major release, and that an update may be available on the developer's website.
macOS 27 Golden Gate — “App Update Required”, here for Rules.

Nothing is broken and nothing is being switched off. If your AlphaCorr desktop software runs on your Mac today, it keeps running on that Mac — and the message itself can now be turned off.

The alert names whichever of your applications triggered it, and the exact phrasing varies a little by application and by macOS version — yours reads much like these. What it is telling you: that app uses Rosetta, Apple's translation layer that lets software built for Intel Macs run on Apple Silicon Macs, and Apple is winding Rosetta down. It appears on every Apple Silicon Mac, even ones the change may never actually reach — and it cannot appear on an Intel Mac at all, because Rosetta only exists on Apple Silicon.

Both versions of the alert link to the same Apple article: support.apple.com ↗

The short version

Apple does not force an existing Mac onto a future version of macOS. If your software works on your machine now, that does not change because a new macOS exists.

The genuine planning question is much narrower than the alert makes it sound: it concerns a new Mac purchased in late 2027 or later — or accidentally accepting the macOS 28 upgrade when it arrives (it is not due until September 2027). And the 27 line — which does not use Rosetta at all — resolves it well before then, perhaps as soon as the end of October 2026.

Prefer every case written out — build numbers, editions, older Intel Macs, what to do in each situation? The nitty-gritty →

Check your exact setup

Pick your product and we will tell you exactly where you stand.

Pick your product and we will tell you exactly where you stand.

Turn the alert off

The message is a separate matter from the transition, and it is one you can simply switch off: a small configuration profile, signed by us, installed in three steps and removable at any time. It changes nothing about the software or the transition — it only stops macOS posting the Intel-app notice (for every Intel app on that Mac, not only ours).

What actually changes, and when

Three dates, and they mean very different things. Only the last one involves anything stopping.

Release When Rosetta What it means for you
macOS 26 Tahoe September 2025 Available. macOS 26.4 and later show an alert when you open an app that needs it. Nothing is broken. Information only.
macOS 27 Golden Gate Shipped September 14, 2026 — the current macOS Still available — installed automatically the first time an Intel-built app needs it. Nothing is broken. The first run of Intel software may take an additional few seconds to a few minutes.
macOS 28 (not yet named) Expected September 2027 Removed for general use. A limited subset remains for Linux virtual machines and some older games. Generic apps that need Rosetta 2 stop running. This is the date the Apple alert is really about — and by then you won't need it.

Questions?

If you have a question about your installation, a Mac you are thinking of buying, or which release fits your machine, talk to us. We would rather answer a question early than have you plan around a guess.

AlphaCorr, LLC · 800 862-0795

Revision r3 · published 2026-09-16 · current.
macOS 27 Golden Gate shipped on September 14, 2026, and our current releases run on it as they did on the betas. The page now calls Golden Gate the current release and dates it; compatibility guidance, captures and the turn-off pointer are unchanged from r2.

Permanent link to this revision: /software/apple-silicon/r3

Revision history:

  • r1 · 2026-08-13
  • r2 · 2026-08-19
  • r3 · 2026-09-16 (current)