[HTC Sensation] mEMBER83:
MIUI Changelog 2.9.21

[System]

Optimisation, when internal data is no longer mounted, migrate to the the OTG connection U disk

Fix some problems with intermittent phone reboots

[Phone]

New sound settings feature to set dial tone as piano tone (Phone -> Settings -> Other Settings > Dial tone Settings)

Optimisation of emergency call interface interactions

Fix problem when answering calls, the phone still continues to ring

Fix changing network type settings will be lost after phone restart due to settings save failure

Fix Network version of phone when changing the phone SIM card type (CDMA / GSM interchangeable), cell signal display is not shown correctly and other problems answering calls or using the Internet

Fix call interface does not show the contact name

Fix when making call using a Bluetooth headset, the contacts name is not displayed

[Contacts]

Fix "Unknown Caller" will not appear in the "Recent" list of contact numbers

Fix switching between Simplified and Traditional Chinese, may cause contact search problems

[Messaging]

Fix MMS cannot complete sync to MiCloud

Fix multiple texting may cause FC errors

Fix SMS session editor page content interface dislocation issues

Fix network SMS switch sometimes automatically appears as closed / disabled

Fix in some rare cases, when message is sent will lead to FC errors

Fix sending MMS picture, after editing picture, rotation editing change is lost

[Lock screen, status bar and notification bar]

Fix when using standard toggles mode, notification bar switch when clicking on "more" leads to FC error

Fix in some cases, misuse prevention does not take effect after being enabled

Fix in some cases when using GPS, collapsing the status bar is problematic

[Desktop]

Optimise first time loading free desktop information prompts

[Themes]

Fix themes in some interfaces may display unusual problems

When you delete an application from Theme, ringtone does not copy to the ringtones directory

[Gallery]

Optimise album download logic: changed to download thumbnail previews and support for scrolling through items while still downloading

Fix Gallery Home, "photos" narrow thumbnail problems

Fix when selecting full view and clicking the 'share' menu item, modify default system style

[Music]

New feature, manually adjust the lyric speed by dragging up and down on lyrics, allows you to control the lyric speed to sync better to your music

[File Explorer]

New MiDrive function, if the service is not available a prompt will be displayed

Optimise loading speed of SD card folder contents

Optimisation problems, when pulling out SD card. The folder navigation 'path/directory' drop-down menu does not display

Fix problem when browsing, empty folder when you pull out the SD card, the interface displays unusual problems

[FM Radio] [Supported devices only]

Added support for listening to radio in Airplane mode without mobile data connection being active

New, when you unplug headphones a re-insert them, FM will continue broadcast

[Notes]

New batch editing mode, supports deletion of pinned notes

Optimisation in list or grid mode when deleting items

Optimise sticky notes desktop widget style

Optimise support for sharing a note containing a picture

Fix in some cases, notes folder list does not display correctly

Fix problem where the notes folder cannot be renamed

[Other]

Fix Flashlight is unable to be opened

[Video Player]

Optimisation of vertical screen display movie progress indicator

Optimisation of video not playing prompt behaviour

Fix Gallery Desktop widgets cannot open avi files

My Update is coming tomorrow.