[Motorola Droid X2] trafalger888:
When they updated to the new weekly build there was updated framework if I am not mistaken

Either way here is the change log from miui.us

[This week recommended] Added a new version of music Optimized ringtones preview, download and select experience.

[System] Fixed when changing minutes, hour would change. Optimization of the I9100 updated the firmware package, version ZSLPG Optimization of the LT18I updated the firmware package, version 4.1.B.0.431 Optimization of the Honor updated the firmware package, version of the B919 Optimization of showing actual memory total Fixed issue where killing an app with long-press back would not release the memory. Fixed issues with volume and camera wake

[Phone] Added pressing volume button to turn off call waiting beep, can also be set in the phone settings Fixed issues with calling emergency Fixed some cases where the answer panel would disappear Fixed issue when setting a tone for no caller

[Contact] Added fullscreen view for contact image, click image in contact details. Added option to jump to birthday on calendar in contact details Added lunar birthday below the date of birth When editing a contact picture, an outline of a head will show Fixed issue with high resolution not showing right outline

[SMS] New birthday "Easter Egg" (happy birthday message on your birthday) Optimized searching by contact Fixed issue where CDMA could not prefix number with +

[Lock screen, status bar, notification bar] Added possible unlocking animations to lockscreen (shutters, folding, etc) New Variety lock screen supports using the local screenshots as a picture source Variety lock screen supports web query and xpath support to retrieve different parameters Variety lock screen supports the 3D rotation effect (lockscreen theme support is required)

[Themes] Optimized ringtones browse, listen, download and choose options Fixed some theme pack size displaying as 0 Fixed some cases where no thumbnail would be shown Fixed Youku icon to display incorrectly Fixed when clicking the first item of the list, the title bar having two-state problem Fixed "desktop" module not being able to be applied Fixed issue where restoring from backup containing a font would cause garbled text

[Camera] Add tap focus to video mode Added support for 16:9 full-screen format (modify photo size setting to take effect) Add a speed camera: Hold back on the lockscreen to immediately open camera Optimized compression method (default picture size will become larger, and can be adjusted in the settings) Optimized video mode, now can record up to 2 hours Fixed issue with color bar on side when shooting 5MP photo.

[Gallery] Fixed issue where when browsing pictures, image would slide around. Fixed issue where wrong thumbnails were given to images Fixed issue where after video playback the color was incorrect

[Music] Added new version of the music player

[Backup] Optimized low SD reminder message Fixed MMS force close when restoring high-volume backups

[Settings] Added setting for how long to hold the back key to kill app.

[File Manager] Optimize loading efficiency in file search

[Calendar] New month view, list view, increase lunar Optimized updating the calendar to reminder text description. Repaired issue where two birthday reminders would show for one contact Fuxed lunar date due to Daylight Savings Time

This week's changelog was gotten from the official MIUI.com forums, translated through Google and Bing, and then translated from the translations to what you read above, by me, blind.