iOS9 and Mountain Lion compatibility

Discussion in 'iOS 9' started by JackP, Oct 21, 2015.

  1. JackP macrumors member

    Jun 3, 2009
    My Office computer is running Mountain Lion 10.8.5. We need to keep that OS as we have a proprietary piece of software that will only run on ML. I am considering getting a new iPhone which will obviously have iOS9 on it. I am syncing my Calendar & reminders, and notes through iCloud.

    Am I going to have issues with iOS9 & ML syncing?

  2. Eau Rouge macrumors regular

    Sep 21, 2013
    10.8.5 is now the minimum version of OSX required for iTunes. I have an old machine that I keep on Mountain Lion and while I don't sync any devices with it, browsing and file transfers work fine through iTunes. The only thing that does not work is Apple Music, which may or may not be important to you.
  3. JackP thread starter macrumors member

    Jun 3, 2009
    Thanks for your reply. Good to know about iTunes, but my main concern is the data syncing with the built in apps and ML. Anyone else know?
  4. techguy9 macrumors 6502


    Aug 16, 2014
    Atlanta, GA
    If you have upgraded to iCloud Drive, then apps that use iCloud to sync with iPhones will fail because they still use the old system.
  5. Eau Rouge macrumors regular

    Sep 21, 2013
    Right. This is especially true for Notes. As long as you don't update when prompted in iOS 9.x, they'll sync with a ML install, no problem. You'll miss out on some new functionality, however. Reminders and calendars sync without issue.
  6. frankieflowers macrumors newbie

    Apr 19, 2013
    Hello. I have a Mac Pro running Lion 10.8.5 and an iPhone 6 running ios 10.3.1 where I'm still using iCloud. I didn't upgrade to iCloud Drive because I would have to pay... Notes aren't syncing between devices. Please help me.

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5 October 21, 2015