If you've been itching to try Windows 10 Mobile on your Windows Phone 8.1 device, we've got some bad news. Microsoft says older Lumias won't be upgraded until "early 2016," which is a slight delay from the "December" timeline it had offered before. For the time being, that means the only way to try the new OS is to buy the Lumia 950 or the 950 XL.
持有微软Windows Phone 8.1的Lumia用户，如果你一直在期待Windows 10 Mobile更新的话，很遗憾，这里有一个坏消息要告诉你了。早些时候，微软正式宣布将这部分产品的升级时间从原来的12月推迟至2016年初，换句话说，想马上体验最新版系统的话，就只有去买Lumia 950/950XL 这一个办法了。
Microsoft hasn't explained the reasons behind the postponement, although we suspect it's to give its new software some much-needed polish. While testing the Lumia 950, we noticed a number of bugs and performance hiccups that could and should be ironed out. Windows 10 is an important play for Microsoft.
至于延后的原因，微软并没有进行具体的说明。但我们猜测是需要更多的时间来完善新版本软件。而在测试新手机时，官方发现了许多系统bug以及卡顿现象，所以这都需要，也应该被完善。Windows 10对微软来说是非常重要的一步。

In a statement to ZDNet, a Microsoft spokesperson said:
以下是微软发言人在至顶网带来的官方说明:
"This November we introduced Windows 10 to phones including brand new features such as Continuum and Universal Windows Apps with the introduction of the Lumia 950 and 950 XL. The Windows 10 Mobile upgrade will begin rolling out early next year to select existing Windows 8 and 8.1 phones."
“11月，我们介绍了Windows 10手机版的全新的功能，如使用Lumia 950和950 XL展示的Continuum和通用Windows应用程序。Windows 10 Mobile更新将从从明年年初开始向适配的现有Windows 8和8.1手机推送。”
It's also unclear exactly which devices will be eligible for the upgrade next year. Microsoft has confirmed that handsets will need at least 8GB of internal storage, but that's about it.
现在也不清楚到底哪款机器能够在明年满足升级的要求。微软官方唯一确定的是手机需要至少8GB的内存，仅此而已。