Installing new versions of Mountain Lion on top of old?

Discussion in 'OS X Mountain Lion (10.8)' started by NJRonbo, Apr 30, 2012.

  1. macrumors 68000

    Jan 10, 2007
    Hello Everyone!

    Have Mountain Lion DP3 installed. No problems. Very polished OS at this stage.

    Can I simply install future DP through final releases of Mountain Lion on top of what I have already or am I going to be forced to downgrade to Snow Leopard first?

    Thanks in advance
  2. macrumors G4

    Jul 17, 2002
    You cannot install release versions of MacOS X over developmental versions.
  3. macrumors member

    Mar 20, 2011
    For Lion this was not an issue. You simply redeem your GM code in the app store and install it. You were able to install over a DP without an problem.
  4. thread starter macrumors 68000

    Jan 10, 2007
    Okay, so the final version can be installed over the DP.

    That is what I was hoping to hear.

    Thank You
  5. macrumors newbie

    May 16, 2012
    So, if I don't have a GM code, and I was to purchase Mountain Lion from the App Store, would it still install over DP3 or not?
    Thanks :cool:

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