MIUI Forum app is the only official app to access Xiaomi MIUI Global Forum (en.miui.com/forum.php) where you can come to discover latest news and updates of MIUI ROM, Mi products, apps, themes, reviews, root tools, kernels, tutorials and more. With millions of MIUI fans from all over the world, you can also make some friends and talk about ROMs, phones, technology and anything you're interested in. We're trying our best to make it a place where brilliant minds shall never be lonely!

From version Xiaomi MIUI Forum 2.0.3:

New - Added 'About MIUI Forum' in Settings
Optimization - Improved stability and some bug fixes

All versions
December 28, 2018
March 14, 2018
September 14, 2017
July 15, 2017
April 7, 2017
January 19, 2017
December 27, 2016