Big Sur runs on the following Macs: MacBook: Early 2015 and newer. MacBook Air: Mid 2013 and newer. MacBook Pro: Late 2013 and newer.
On your Mac, go to apple.com/macos/big-sur. Or, go to System Preferences > Software Update, and find MacOS Big Sur. Either way, click Upgrade Now. The download will start immediately, but may take while -- for my MacBook Air, it estimated about an hour.
How to free up space for macOS Big Sur?
Here's an overview of the Macs that will run Big Sur: MacBook models from early 2015 or later. MacBook Air models from 2013 or later. MacBook Pro models from 2013 or later.
macOS Big Sur is a solid release for several reasons. 1) It's the first Mac operating system that's compatible with Apple Silicon. 2) It cements the iOS-ification of the Mac more than previous versions of macOS. 3) It brings feature parity with several key stock iOS apps like Messages, Maps, and Photos.
Step 1: Select System Preferences from the Apple drop-down menu, then click Software Update. You can also download MacOS Big Sur on the App Store. Once the update appears and you confirm it's Big Sur, just click the Update button. Step 2: Once the update has been downloaded, it is time to install.
How to install a new copy of macOS Big Sur in Recovery Mode
macOS Big Sur: Compatible devices The new macOS 11 Big Sur is compatible with iMac 2014 and later, iMac Pro 2017 and later, Mac Pro 2013 and later, Mac Mini 2014 and later, MacBook Air 2013 and later, MacBook Pro Late 2013 and later, and MacBook 2015 and later.
MacBook Pro models from 2013 or later As long as your MacBook Pro doesn't predate the late 2013 models you'll be able to run Big Sur.
macOS Big Sur is compatible with most 2013 and later machines, outlined below: 2015 and later MacBook. 2013 and later MacBook Air. Late 2013 and later MacBook Pro.
Apple's Big Sur Update May Brick Certain MacBook Models, Owners Say. The problem affects MacBooks from 2013 and 2014. If your laptop is experiencing the problem, here's what you can do. If you own a MacBook Pro laptop from 2013 or 2014, you may want to hold off on installing the Big Sur update released last week.
How much space does macOS Big Sur need? If you've downloaded Big Sur or looked closely at its page on the App Store, you'll know that the installer/download size is 12.6GB.
macOS Monterey doesn't look as packed with features as the previous Apple update — Big Sur. Still, it contains many exciting new changes and essential improvements, requiring around 26GB of available storage space. The macOS Monterey installer itself takes 12.13GB, just around the same size as the Big Sur installer.
Open a Finder window and press Shift-Command-G to open the Go to Folder window. Type ~/Library/Caches in the blank box, click the Go button, and you will see the caches of all applications. Find the folder of the app whose cache you want to delete. Go into it, delete all its files, and then empty the trash.