Rosetta & Philae Mac OS
If you have a Mac with Apple silicon, you might be asked to install Rosetta in order to open an app.
- Rosetta is a dynamic binary translator developed by Apple Inc. For macOS, an application compatibility layer between different instruction set architectures.It gives developers and consumers a transition period in which to update their application software to run on newer hardware, by 'translating' it to run on the different architecture.
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Click Install, then enter your user name and password to allow installation to proceed. Rosetta will then be available for any of your apps that need it.
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Rosetta Hardscapes
About Rosetta
Rosetta 2 works in the background whenever you use an app built only for Mac computers with an Intel processor. It automatically translates the app for use with Apple silicon.
Rosetta Philae Comet Landing
In most cases, you won't notice any difference in the performance of an app that needs Rosetta. But you should contact the app developer to inquire about a version that can natively use the full power and performance of Apple silicon.
Which of your apps need Rosetta?
You can use Get Info to identify apps that need Rosetta or can use Rosetta:
- Select the app in the Finder.
- From the File menu in the menu bar, choose Get Info.
- View the information labeled Kind:
- Application (Intel) means the app supports only Intel processors and needs Rosetta to work on any Mac with Apple silicon.
- Application (Universal) means the app supports both Apple silicon and Intel processors, and uses Apple silicon by default.
The Info window for universal apps includes the setting “Open using Rosetta.” It enables email apps, web browsers, and other apps to use add-ons that haven't been updated to support Apple silicon. If an app doesn't recognize a plug-in, extension, or other add-on, quit the app, select this setting, and try again.