macOS 27 Golden Gate: The End of Rosetta 2 Is Now Official
Apple has drawn a clear line in the sand. With macOS 27 Golden Gate now entering beta testing, it has officially become the last major version of macOS to include full support for Rosetta 2 — the dynamic binary translation layer that has kept Intel-built applications running on Apple silicon Macs since the platform transition began in late 2020. For millions of Mac users who still rely on older Intel-compiled software, the clock is now ticking loudly.
This isn't entirely a surprise. Apple first outlined this timeline publicly at its Platforms State of the Union during WWDC 2025. But with Golden Gate now in developers' hands, that announcement has moved from a future warning to a present reality. Understanding what this change means — and what you should do before the next major macOS release arrives — is essential for anyone still running Intel-only apps on an Apple silicon Mac.
What Is Rosetta 2 and Why Has It Mattered So Much?
When Apple announced the transition from Intel processors to its own Apple silicon chips in June 2020, one of the biggest concerns among users and developers was software compatibility. Years of Mac applications had been compiled specifically for Intel's x86_64 architecture, and rewriting them for Apple's ARM-based chips takes significant time and resources.
Rosetta 2 was Apple's answer to that problem. Introduced alongside the M1 chip in late 2020, it is a dynamic binary translator that automatically converts Intel-compiled code so it can run on Apple silicon hardware — often with surprisingly good performance. In many cases, apps running through Rosetta 2 performed competitively with or even faster than the same apps running natively on the Intel hardware they were originally designed for, thanks to the raw power of Apple's chip architecture.
For five years, Rosetta 2 has served as a critical bridge, allowing users to upgrade to newer, faster Apple silicon Macs without immediately losing access to the software they depend on. It gave developers time to build native Apple silicon versions of their apps without leaving their user base stranded. Now, that bridge is entering its final stretch.
What Apple Said at WWDC 2025
During the Platforms State of the Union at WWDC 2025, Apple made its plans explicit. The company confirmed that Rosetta 2 would remain available as a general-purpose tool through macOS 27, giving developers two additional major macOS releases to complete their transitions. Apple's own words from that session leave little room for ambiguity:
"Rosetta was designed to make the transition to Apple silicon easier, and we plan to make it available for the next two major macOS releases — through macOS 27 — as a general-purpose tool for Intel apps to help developers complete the migration of their apps. Beyond this timeframe, we will keep a subset of Rosetta functionality aimed at supporting older unmaintained gaming titles, that rely on Intel-based frameworks."
That final note is worth paying attention to. Apple is not removing every trace of Rosetta functionality forever. A limited subset will reportedly survive beyond macOS 27, specifically to support older gaming titles that rely on Intel-based frameworks and are unlikely to ever receive native Apple silicon updates. However, this is a narrow carve-out — not a general reprieve for Intel-compiled productivity apps, creative tools, or utilities that users may depend on for their day-to-day work.
macOS 27 Golden Gate and the Intel Mac Exit
The Rosetta 2 sunset isn't the only significant transition happening with macOS 27 Golden Gate. This release is also the first version of macOS that is exclusively limited to Apple silicon Macs. Intel-based Mac hardware is no longer supported at all in Golden Gate, marking the complete end of the line for those older machines at the macOS level.
For Apple silicon Mac owners, however, the more personally relevant change is the Rosetta 2 deprecation. Even if your Mac runs the latest M-series chip perfectly, any Intel-only apps you depend on will stop functioning when the macOS release after Golden Gate arrives — unless either you or the app's developer takes action before that happens.
Apple Is Already Warning Users
Apple hasn't waited for macOS 27 to start preparing users for this change. Starting with macOS 26.4 and macOS 26.5, the operating system began surfacing a system alert whenever a user launches an Intel-only application. The alert flags that support for these apps will end in a future macOS release, giving users an early heads-up and an opportunity to seek alternatives or contact developers about native versions.
This kind of proactive notification is consistent with how Apple has handled past platform transitions. Warnings about 32-bit app deprecation appeared well before macOS Catalina removed support in 2019. The pattern is familiar: Apple signals the change early, gives developers time to adapt, then follows through. With Golden Gate now in beta, that follow-through is one major release away.
What This Means for Mac Users Right Now
If you are running any Intel-only applications on your Apple silicon Mac, now is the time to audit your software library and take stock of your options. Here are the key steps to consider:
- Identify which apps are Intel-only. On macOS, you can check this by opening the System Information app, navigating to Software and then Applications, and looking at the "Kind" column. Apps listed as "Intel" rather than "Apple" or "Universal" are running through Rosetta 2 and will be affected.
- Check for native Apple silicon updates. Many developers have already released universal or Apple silicon-native versions of their apps. Visit the developer's website or check the Mac App Store for the latest version and confirm whether it supports Apple silicon natively.
- Contact developers of critical tools. If an app you depend on still lacks a native Apple silicon version, reach out to the developer directly. WWDC 2025 and the Golden Gate beta are strong motivators for any developer who may have deprioritized this work.
- Identify alternatives if needed. For abandoned or unmaintained Intel-only software that will never receive an update, now is the time to research modern replacements so you are not caught off guard when support disappears.
The Bigger Picture: Apple's Silicon Transition Is Complete
The phasing out of Rosetta 2 is, in one sense, a sign of just how successful Apple's transition to Apple silicon has been. The M1 chip launched in November 2020. By most accounts, the platform transition — which Apple originally suggested would take about two years — was functionally complete well ahead of schedule. Apple silicon Macs rapidly became the performance leaders in the Mac lineup, and developer adoption of native builds followed quickly.
Rosetta 2 did exactly what it was designed to do: it made the transition smooth enough that users could adopt new hardware without disruption, and it bought developers the time they needed to modernize their apps. With macOS 27 Golden Gate marking its final full chapter, Rosetta 2 will go down as one of the most effective platform migration tools in computing history.
For users and developers still on the Intel side of the fence, the message from Apple could not be clearer. One major macOS release remains. Make the most of the time you have left.