6 or newer, although Apple recommends that you upgrade to Mac OS X 10. 8 for the latest compatibility fixes for OS X Lion installation. Stop reading and back up your Mac If you're in the process of getting ready to install OS X Lion and you're reading this article to get an opinion on it, then stop reading this and start backing up your Mac. You can let it back up while you read the rest. If you're just reading this for the heck of it and have no interest in installing OS X Lion, and you still don't have a backup, stop reading and go back up your Mac.
If you have backed up your Mac then you can continue.
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