支持苹果iOS 8和OS X 10.10系统的设备一览
iOS 8
iPhone 4S /iPhone 5 /iPhone 5C /iPhone 5S /iPod Touch 5th generation /iPad 2 /iPad with Retina Display /iPad Air /iPad Mini /iPad Mini with Retina Display
简单说，iPhone 4 被抛弃了...
OS X 10.10 Yosemite
iMac (mid-2007 or newer) / MacBook Air (late 2008 or newer) / MacBook (Late 2008 Aluminum, or Early 2009 or newer) / Mac Mini (Early 2009 or newer) / MacBook Pro (Mid/Late 2007 or newer) / Mac Pro (Early 2008 or newer) / Xserve (Early 2009)
iPhone 4S /iPhone 5 /iPhone 5C /iPhone 5S /iPod Touch 5th generation /iPad 2 /iPad with Retina Display /iPad Air /iPad Mini /iPad Mini with Retina Display
简单说，iPhone 4 被抛弃了...
OS X 10.10 Yosemite
iMac (mid-2007 or newer) / MacBook Air (late 2008 or newer) / MacBook (Late 2008 Aluminum, or Early 2009 or newer) / Mac Mini (Early 2009 or newer) / MacBook Pro (Mid/Late 2007 or newer) / Mac Pro (Early 2008 or newer) / Xserve (Early 2009)
回复 jun yin 在 #11 的 pid=4205340 的贴子
http://www.audiobar.net/viewthread.php?tid=444072 第7楼，我在10.9.3下直接升级的，但不敢保证所有人都能成功。