HT201260: Find the OS X version and build number on your Mac
Learn about Find the OS X version and build number on your Mac
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Q: i have os x leopard can i upgrade to yosemite and if so how?
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May 28, 2015 5:15 AMby D.Cohen,Take a look at these support articles and download the combo update in case you face any difficulties:
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May 28, 2015 8:02 AMby Eric Root,Check that your computer is compatible with Mountain Lion/Mavericks/Yosemite.
To check the model number hold down the option/alt key, go to the Apple menu and select System Information.
- MacBook (Late 2008 Aluminum, or Early 2009 or newer) model number 5,1 or higher
- MacBook Pro (Mid/Late 2007 or newer) model number 3,1 or higher
Your Mac needs:
- OS X v10.6.8 or OS X Lion already installed
- 2 GB or more of memory (More is better - 4 GB minimum seems to be the consensus)
- 8 GB or more of available space
Check to make sure your applications are compatible. PowerPC applications are no longer supported after 10.6.
Applications Compatibility (2)
Do a backup before installing.
