To upgrade to Yosemite, you'll need to know what type of hardware your Mac has, as well as which version of OS X you are using.

MacBook (late 2008 Aluminum or early 2009 or newer)įor a full list of hardware requirements, view the OS X Yosemite How to Upgrade page.

Below are the models that can be upgraded:

Hardware requirements: Your Mac will need to meet certain processor, memory, and hard drive requirements to install Yosemite.

Internet access: To install Yosemite, you will need to download it from the Mac App Store, which requires a working Internet connection.

OS X Snow Leopard, Lion, Mountain Lion, or Mavericks: If you are using an older version of OS X such as Leopard, you will need to upgrade to Snow Leopard (version 10.6.8) before upgrading to Yosemite.

Installing Yosemite on a PC is possible, but it requires more advanced techniques.

Apple Macintosh computer (Mac): Generally, you'll need to have a Mac in order to install OS X Yosemite.

If you're thinking about upgrading to Yosemite, you'll need to make sure your computer meets all of the software and hardware requirements. en/macosxyosemite/new-features-in-os-x-yosemite/content/ Upgrading to OS X Yosemite

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