In front of the multi-coloured bar, you will see the phrase, 'X.XX GB free out of XX.XX GB.' If you don't have at least 8 GB of free space, you should delete some old files.īefore you update macOS, don’t forget to: In the same About this Mac, menu select the 'Storage' tab. Cool, eh?ĭisk space: 8 GB of free space on the drive. Sierra is pretty lightweight, so you only need 2 GB of RAM to upgrade.

Click the Apple icon in the top left corner.Here’s how to find out which OS version you’re running now: Check your macOS for Sierra compatibility If your current operating system is OS X Lion (10.7), you can skip a few versions and upgrade directly to macOS High Sierra. To upgrade to Sierra from, say, Mavericks, you’ll have to consequently upgrade to Yosemite and then to El Capitan first. Here are the models of Macs that are compatible with macOS 10.12 and can upgrade to Sierra:ĭoes order matter when you upgrade macOS? How to upgrade macOS: Sierra 10.12 compatibility listĪs with the previous versions, macOS Sierra is available for a limited list of Mac models.

Macbook pro el capitan vs sierra