Ok. so my brother has snow leopard, and I have mountain lion. If my brother upgrades from leopard to mavericks, will all of the stuff he didn't get from mountain lion add onto mavericks? Like if he updated from leopard to maverick and I updated from mountain lion to mavericks, Would we have the same software? Or would you have to download mountain lion first and then mavericks to have everything? Do you know what I mean?
thanks
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