Original Chinese thread can be found here: http://www.miui.com/thread-247523-1-1.html
UPDATE NOTICE: Superuser Permissions need to be enabled via Superuser.apk menu enable superuser Permissions. (Superuser is found in Tools folder)
Update:
[Recommended] this week
1. Upgrade browser JavaScript engine to enhance the performance of JavaScript execution by 30%
2. Anti-eavesdropping functionality
3. Support replacing theme, wallpaper, ring tones and other resources when no SD card present
[System]
New hardware key supports screenshots, search, telephone key functions (support millet phone, Milestone, Desire Z. See System Settings -> System -> Key -> m key -> shortcuts)
Fix issue when repeatedly pressing hardware key, it restarted launcher.
Optimize system management interface login
[Telephone]
New automatic transfer switch allows APN (only CMWAP networking may be set)
New beginner's guide
Optimize the sound anti-eavesdropping functionality turned on to prohibit third-party program recording / monitoring the call status / control the volume, turn your speakers and other sound equipment for the operation of
T9 Pinyin less optimal results when the display match the number of contacts
Repair in some cases calls can not complete the lock screen wallpaper display problem
Fix vibration/sensor issues when flip phone to silent is enabled
[Contact]
New novice guide
Add/restore new contacts without guidance from online backup
Fix alphabet issues between O/P chars
[SMS]
Optimize the attachment into the message recording, according to MMS automatically stop recording length limit
Optimization to modify the default SMS ringtone service
Fix MMS sending status inaccuracies
[Lock screen, the status bar, notification board]
New DND mode toggle to notification bar (simple mode)
Fix FC when theming drop-down notification bar
Fix status bar novice guide recurring
Fix brightness mode bug in page-view notification toggles
Fix lockscreen music control issues when going to lockscreen before music has started to play
Fix lock screen charging animation and time display
[Desktop]
Optimization to speed up the home button long press the speed of recent task management
Repair of desktop gadgets (missing text issues)
[Theme]
Support unmounted SD card when changing theme, wallpaper, ringtone, and other resources (user will be prompted to migrate data when SD card is inserted)
Optimize local theme list loading speed
Optimize local theme style opening animation to come from bottom up, keep consistent with the rest of system
Change the order of some theme parts (lockscreen style moved to top)
Optimize details display to show "file name"
Optimize loading when there is no preview to display
Repair of ring tone FC issue
Repair custom notification sound, (alarm is displayed as the default)
Click a blank area of repair page for details of the problem leading to FC
Click for details page repair continuous application memory problems when FC
Repair the local cache invalidation in some cases lead to problems affecting the efficiency of loading
Fix default theme animated preview display problems
[Gallery]
Significantly improve the optimization of the thumbnail, a larger view of the definition
Fix transparent image thumbnail display unusual problems
Repair cross-screen when browsing the proportion of abnormal result set wallpaper problem
Page scrolling gallery SD card repair process by pressing the top of the problem switching directories FC
[Camera]
Fix FC when camera is turned on immediately after bootup
Fix FC when opening photo playback, change brightness, contrast, saturation immediately after opening camera app
[Browser]
Upgrading JavaScript engine (V8 JavaScript engine), web page JavaScript execution performance increase by 30%
Default navigation page optimization quick access to new location at the last
Repair management quick access to sites, return to navigate page refresh problem can not be timely
Repair dragging pages in "Global" site can not drag the issue page
[Music]
Optimize the use of local picture as album art support for resizing
[File Manager]
Repair list image is too large, leading to confusion in the list of thumbnail display problem
[Radio]
Optimized headphone pull open the flight mode no longer automatically exit radio, but pop-up dialog box shows
[Tape recorder]
Repair leading to the recording on the radio FC problem
[Back]
Click optimize the backup failed or abnormal items not directly delete the corresponding entry
Optimize the online backup server stability
Repair SD card space is insufficient, leading to some of the backup application is corrupted
Repair the local problem of the backup alarm led FC
[Calendar]
Optimization when there is no account, the first will be prompted to enter the calendar
After the menu item does not fix login problem update
Exchange can not repair the problem using the calendar
[License Manager]
Optimization will not open ROOT privileges by default (can be set to open)
[Download Management]
Added support for SD card free download
Add new download category "other"
Repair failed download the issue in the absence of records
[Set]
Optimize the ring, the system volume to 0, adjust the volume does not play a tone
Optimization settings in the slider segment display
Optimize the WLAN password prompt will pop up an error to re-enter
[System Update]
Click Check for Updates Repair rapid succession error dialog box will pop up problem
Never repair the network when switching to a network environment, the problem can not download the complete package
[Download Management]
Repair failed download failed can not receive a notification message problems
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