这是Win10 xbox app跟Smartglass相关更新，XboxOne自己的更新还没公布
http://goo.gl/A5WUGs
Game DVR for PC games – The Game bar lets you record game clips of your
favorite Windows games.
xboxapp让你可以录制PC游戏影片
Screenshots – Take screenshots of Windows PC games by pressing Windows + Alt
+ PrtScr. Just as with Game DVR, you can also do this by clicking the “
Screenshot” button on the Game bar.
xboxapp让你按下以上组合键可以撷取PC游戏画面
Live Tiles – The Xbox tile on your Windows 10 start menu now welcomes you
back, showing off your gamerpic and letting you know when you have new
messages and activity alerts.
xboxapp支援动态砖
Avatar app – A new app is available in the Windows Store to customize your
Xbox avatar’s appearance and outfit your avatar with a vast collection of
items.
Avatar app上架，当然就是让你设定玩家人偶
User profile – You can see another gamer’s bio, location, reputation,
tenure, and other information in the more info page, including their animated
avatar.
xboxapp可以看其他玩家的地区，嗜好，简历
Real name sharing – Similar to the features we brought you in the March
update on Xbox One, you can now choose to share your real name on the Xbox
app with all of your friends or with everybody.
xboxapp可以设定姓名分享
In addition to keeping you connected to your games and friends, we’re giving
you even more control over the Xbox experience on Windows 10.
Xbox One Now Playing and media controls – The games and apps you’ve used
most recently on your Xbox One are now displayed when you connect the Xbox
app to your console. You can also use the Xbox app to pause, fast forward and
rewind.
连接到X1之后，会自动跳到最常使用的游戏与应用程式
Live TV streaming and PIP (picture in picture) support – For preview members
with an Xbox One Digital TV Tuner (in 16 European countries and Australia) or
a Hauppauge 955Q TV Tuner (available in the U.S. or Canada) attached to their
Xbox One, you can now stream live TV within your home from your Xbox One to
Windows 10 PC running the Xbox app.
Xbox controller drivers – The drivers for Xbox controllers are now included
with Windows 10, so you no longer have to download and install controller
drivers on Windows 10.
Win10内建X1手把驱动
The Xbox app will automatically update to the April preview version when it
becomes available in the Windows Store. Once you receive the update, your
version number should be 4.4.9014.0 or higher. You can verify the version
number of the Xbox app in Settings.
Xbox One and SmartGlass updates
The Xbox team continues to work hard to bring the many fan-requested features
on the Xbox Feedback site to Xbox One and Xbox One SmartGlass, with the
following items being available to preview members this month:
Over-the-air TV for the U.S. and Canada – Earlier this month, we announced
the preview for an Over-the-Air Tuner for the U.S. and Canada.
Power on and off from Xbox One SmartGlass – The beta versions of the Xbox
One SmartGlass apps for Windows, Windows Phone and Android will be updated to
let you turn your Xbox One on and off.
SmartGlass可以遥控X1开关机！
Wireless Display app – Try the Wireless Display app to cast photos stored on
your phone to your Xbox One, or to stream non-protected video content from
your PC to your Xbox.
Wireless Display app 可以"无线"连接同区网上的手机看照片，或是电脑看影片
User-selectable power mode – Select your preferred power mode, either
Instant-on or Energy-saving mode.
Voice messages – The ability to send and receive voice messages from the
Xbox One messages app continues in preview this month.
For more details about each of these features, check out the full story at
Xbox Wire. And stay tuned for more great Xbox features coming your way on
Xbox One and the Xbox app on Windows 10.