Some features, applications, and services may not be available in all regions or all languages.

Siri web answers are available in English (U.S., UK, Canada, India, and Australia).

Adaptive Lighting, Face Recognition, and Activity Zones in the Home app require an Apple TV, HomePod, or iPad set up as a home hub and compatible HomeKit accessory.

(and I miss this design) I have a 2011 MacBook Pro that I dual boot Snow Leopard/ El Capitan on. Also it just ran better, and was the last truly skeuomorphic designed version of Mac OS. Requires iPhone or iPod with the latest version of iOS iPad with the latest version of iPadOS or Mac with the latest version of macOS. In spaces you could interact with the thumbnails of the windows within the (usually 4) virtual desktops on your mac.

Automatic device switching works with AirPods Max, AirPods Pro, AirPods (2nd generation), Powerbeats, Powerbeats Pro, and Beats Solo Pro.

The improved retouch tool in Photos requires MacBook Pro (15-inch and 16-inch models) introduced in 2016 or later, MacBook Pro (13-inch models) introduced in 2020, MacBook Air introduced in 2020, iMac (Retina 5K models) introduced in 2014 or later, iMac (Retina 4K models) introduced in 2017 or later, iMac Pro (all models), Mac mini introduced in 2020, or Mac Pro introduced in 2013 or later.

Electric vehicle routing requires an iPhone running iOS 14 and a compatible vehicle.

Cycling directions are available for the San Francisco Bay Area, Los Angeles, New York City, Shanghai, Beijing, and London.

Guides are available for the San Francisco Bay Area, Los Angeles, New York City, London, and more.

Performance will vary based on system configuration, application workload, and other factors. For earlier versions of Mac OS X, including Mac OS X Mavericks 10.9, Mac OS X Mountain Lion 10.8, Mac OS X Lion 10.7, Mac OS X Snow Leopard 10.6, Mac OS X Leopard 10.5, Mac OS X Tiger 10.4, and before, the process to obtain those installers differs a bit. Not all features are available on all devices. Prerelease Safari 14.0.1 tested with HD 1080p content Chrome v.75 and Firefox v81.0.1 tested with HD 720p content. Systems tested with WPA2 Wi-Fi network connection while running on battery power, with display brightness set to 12 clicks from bottom or 75%.

Testing conducted by Apple in October 2020 on production 1.4GHz quad-core Intel Core i5-based 13-inch MacBook Pro systems with 8GB RAM, 256GB SSD, and prerelease macOS Big Sur.Performance will vary based on usage, system configuration, network connection, and other factors. Tested with prerelease Safari 14.0.1 and Chrome v.121. Tested on production 1.4GHz quad-core Intel Core i5-based 13-inch MacBook Pro systems with 8GB RAM, 256GB SSD, and prerelease macOS Big Sur. Testing conducted by Apple in October 2020 by measuring page load performance of snapshot versions of 10 popular websites under simulated network conditions.Safari translation (beta) supports English, Spanish, Simplified Chinese, French, German, Russian, and Brazilian Portuguese.

Mac os x snow leopard emulator