iOS13倒计时，系统新特性曝光，6款iPhone或将提前退场！
和国产手机不太一样的是，大家买国产手机往往不会在乎系统的升级问题，因为系统几乎是默认推送的并且更新的周期很快，不过对于iPhone手机来说，网友对于一款新iOS系统就显得格外关注的，因为一款新系统可能会直接决定了苹果是否能继续用下去的，苛刻的苹果一年也只默认更新一次系统升级，所以从iOS12更新到iOS13就让显得格外受到关注。
iPhone手机最大优势莫过于系统体验了，所以对于果粉来说升级系统显得格外有必要了，每一代的iOS更新都有很大的变化，甚至会极大影响iPhone手机的使用体验，很多时候苹果都会选择在开发者大会上公布自己的新系统，而如今苹果开发者大会WWDC的日期也锁定在了6月3号到6月7号，发布地址是加州，届时一年一度的iOS系统也将可能在当天亮相，作为一款新系统它到底有哪些新的系统特性呢？
可能是看到了安卓手机系统上有很多优秀的设计，所以苹果方面也开始放下姿态模仿安卓，目前被传得最火的就是iPhone将会带入暗黑模式，而这个模式将可能会在iOS13上得到体现，这是一款能够针对具备OLED屏幕iPhone进行的系统优化方案，也是一款类似安卓手机那种全黑背景色的主题，不仅让人有一种耳目一新的感觉，更是能起到节能的效果！
除了安卓系统外，目前被传得最火的还有苹果的分屏显示功能，因为现在苹果手机屏幕越来越大，而在一个屏幕上其实可操作性很高，目前的国产安卓手机大部分已经支持分屏操作的，而是iPhone迟迟没有带来这个设计，所以针对这个需求苹果可能会在新系统iOS13上针对大屏iPhone推出分屏显示的功能，这将是iOS13的最大亮点之一，但这在安卓手机上再普通不过的一个设计！
不过考虑到新系统对于系统的内存包括配置都有要求，所以按照苹果每年更新系统的规律来看，这一代开始可能经典的iPhone6s不再能支持最新的系统了，除此之外，iPhone5S、iPhoneSE、iPhone 6、iPhone 6Plus、iPhone5一共6款则将可能彻底退出历史舞台，新款的iPhone8、iPhone7等近些年的机型等均不受影响。不过目前已经有很多网友可能是被iOS11搞怕了，所以即便是能够支持升级，也不会继续升级新系统，很多老iPhone用户认为坚持最原始的系统才是最好的。
苹果开发者大会也马上来了，iOS13倒计时系统新特性曝光，6款iPhone或无缘更新提前退场的节奏了！你的iPhone还支持升级吗？
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