Hold your Horses! :D
Use About This Mac to check the version of Mac operating system installed, and find out whether it's the latest (newest, most recent) version. Which macOS version is installed? From the Apple menu in the corner of your screen, choose About This Mac. Oct 02, 2021 Download: Mac OS Sierra 10.12 ISO and DMG Image. Mac OS High Sierra 10.13 ISO or DMG. Download only the stub installer means web installer is the main reason that only users may be downloading from the app store. The stub installer is mainly little in size. After running the stub installer, the real operating system will begin being introduced. Follow these steps to check for new Apple software updates on your Mac: 1. Go to Apple menu. Open the Apple menu in the top-left corner of the screen. Select Software Update option. Click About This Mac, then click Software Update in the window that opens. Check for available macOS updates. The System Preferences will appear and search. In our macOS Sierra review we test and rate the features, interface and ease of use of macOS 10.12, Apple's current desktop and laptop OS, and help you decide whether to make the upgrade.
You can upgrade to macOS Sierra from OS X Lion or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 8.8GB of available storage space.
MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid 2010 or later
Mac mini introduced in mid 2010 or later
iMac introduced in late 2009 or later
Mac Pro introduced in mid 2010 or later
To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple () menu. If your Mac isn't compatible with macOS Sierra, the installer will let you know.
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS Sierra
Mac Software 10.12 Vs Catalina 10.15
Mac Software 10.12
Jan 31, 2019 10:43 AM