[Lockscreen, Status bar, Notification shade]
New - Incoming calls or messages will only show in the Status bar during a full - screen task (5-13)

[Music]
Optimization - Optimized UI and fixed some bugs (Nexus 7 II) (5-15)

[Mail]
New - Support viewing thumbnails in attachment managing page (5-15)
New - Support viewing unread mails by one click and marking a mail as read by one click (5-15)
Optimization - Download attachments when there's no WiFi (5-15)
Optimization - Search using the server when using an exchange account (5-15)
Optimization - Optimized operating logic when there's not enough space to download the attachments (5-15)
Optimization - Optimized operating logic of Drafts. An email will only be saved as a draft if the server decides the operation is meaningful (5-15)
Optimization - Canceled response when swiping right in Drafts, Outbox and Sent folders (5-15)
Optimization - Attachment types icons align in the center. Support viewing bmp. and gif. types of pictures (5-15)
Optimization - Removed the double - byte space characters at the beginning and end of the senders' names (5-15)
Optimization - Optimized UI and texts at downloading (5-15)
Fix - The notification signal in the Status bar would still show after clearing the new emails notification (5-13)
Fix - Pictures inserted into the emails could not show (5-15)
Fix - After deleting an account, attachments downloaded from the account would also be deleted (5-15)
Fix - Emails in the Exchange account could not auto-sycn if system auto-sync was turned off (5-15)
Fix -  Sometimes, refresh repeatedly would cause abnormality in data usage (5-15)
Fix - Could not set up an account manually if auto setup failed (5-15)
Fix - Contact details information was dislocated when clicking the contact avatar in email details page (5-15)

[Browser]
Optimization - Support using abbreviations when putting in website addresses (Nexus 7 II) (5-14)

[Security]Fix - Sometimes couldn't use Cleaner (5-10)