Apple recently unveiled macOS High Sierra, version 10.13 of its desktop and laptop OS. When the OS is generally available in the fall of 2017, it will be offered as a free upgrade to existing Mac users through the Mac app store. Here’s how you can get it.

SEE: Apple macOS High Sierra kills AutoPlay in Safari, uses machine learning to improve privacy

1. Check compatibility

The first step to downloading any new OS is to make sure your machine can actually run it. As a general rule, your machine must have 2GB of available memory and 8.8GB of available storage for the download. Your machine should also be running OS X version 10.7.5 or later.

In terms of which individual machines will run the upgrade, here is Apple’s official list of supported Macs:

  • MacBook (Late 2009 or newer)
  • MacBook Pro (Mid 2010 or newer)
  • MacBook Air (Late 2010 or newer)
  • Mac mini (Mid 2010 or newer)
  • iMac (Late 2009 or newer)
  • Mac Pro (Mid 2010 or newer)

If you aren’t sure what model Mac you have, click on the Apple icon in the top left corner of your screen and click About This Mac. In the window that pops up, you should see what model you have under the Overview tab.

There are a few other feature requirements that Apple has listed here.

2. Download and install macOS High Sierra

The macOS High Sierra download will be available through the Mac App Store. Start by clicking on the Mac App Store icon on the dock on your Mac.

Once available, the link to download macOS High Sierra will likely be prominently displayed on the Featured tab in the store. If it isn’t, type “macOS High Sierra” into the search bar at the top right, and it should be the first option available in the search results.

Since the upgrade is free, it should only say Get next to the download icon, instead of listing a price. Click on Get, and it should turn green and ask you if you want to install the update. Click Install.

The download will begin, and it will alert you once it is completed. You will need to restart the machine to complete the download, and you will likely need to sign back into your AppleID as well, so have your AppleID password handy.

Note: At the time of this writing, macOS High Sierra is only available in beta. Click here to sign up for the beta program to access macOS High Sierra early.