Does time machine save states before and after osx updates?

Discussion in 'OS X Mountain Lion (10.8)' started by geestring, Sep 24, 2012.

  1. geestring macrumors newbie

    Jul 2, 2008
    I need to use xcode 4.5 which will require mountain lion; I'm on snow leopard.

    I'm just wondering if something messes up I can revert back to snow leopard, or at least retrieve files from it.


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