Macworld macOS Big Sur 11.3 is now available Improved support for iPhone and iPad apps on M1 Macs, new Safari features, and more. body> Apple on Monday released macOS Big Sur 11.3, an update to the Mac operating system. The update includes improved support for AirTag, iPhone and iPad apps on Apple Silicon Macs, new Safari features, and more. Improving iPhone and iPad apps on M1 Macs If you have a Mac with Apple Silicon (the M1 chip) and have been running iPhone and iPad apps, this is an update you'll want to install. The update has new Touch Alternatives settings so you can set keyboard commands in place of touch input that you would usually perform on an iPhone or iPad. To enable Touch Alternatives, click on the app's name in the menu bar and select Preferences.