I have an iPhone 4, and that's not likely to change any time soon (unless I break it). Being a 4, it can only use iOS 7; I can't install iOS 8 on it.
On my Mac, I've installed OS X 10.10 Yosemite. Yosemite offered to upgrade to iCloud Drive, BUT: I don't have iOS 8, so my iPhone wouldn't be able to use files in iCloud anymore, right? …the phone wouldn't be able to use iCloud Drive, right? And Yosemite needs iCloud Drive, so until I upgrade to iCloud Drive, my Mac can't use files in iCloud anymore, right? …Yosemite can't use the old system?
So what should I do? Do I have to choose to use iCloud with either my Mac or my iPhone? Should I go back to Mavericks? Is there something I'm missing, or is there any other way?
Best Answer
You are correct. From John Siracusa's extensive OS X 10.10 Yosemite review: (emphasis mine)
And Apple's KB page, specifically addressing iPhone 4 customers at the end:
As for what you should do, I guess there aren't many counterintuitive answers here: Either get by without iCloud until you get a newer iPhone, or elect to use other syncing services like Dropbox, Box, or SpiderOak.