MIUI 7 China Developer ROM 6.4.21 Full Changelog
Optimization - Increased buffering speed for some games
Optimization - Improved layout for message bubbles with S and XS-sized text
Optimization - Simplified sign-in process and creating Mi Account
New - Added Tencent engine to improve productivity of Cleaner's scans
Optimization - Improved algorithms for trash scans to clear up more space
Optimization - 'Back up apps' is updated to 'Back up device'. Support for backing up system settings. Allows restoring easily.
(assim que tiver tempo traduzo) sorry......
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