Here are the updates coming with MIUI 7 China Developer ROM 6.4.28
There is no major change happened though Xiaomi brought updates to weather app and card design app.
New White Design UI of Weather App:
Now weather app looking more elegant and simple with white background. The White background makes it more eye catching. Meanwhile, more colors are also allowed. Here is new looking weather app with white background:
New Card Design for Downloads:
New download card design now more visually clear now. It distinctively differentiates each section to get a clear view.