New features:
View your total grade for each course
New "My files” feature for browsing and downloading your private and course files
New collapsible "Courses” menu for browsing courses
Improvements:
Design polishing and optimization (notifications, calendar events and settings page)
Grade retrieval optimized (faster with latest version of local_mobile plugin)
Grade error handling improved
Fixes:
Fixed display errors when browsing some types of activities
https://tracker.moodle.org/issues/?jql=project%20%3D%20MOBILE%20AND%20fixVersion%20%3D%20%221.6%22
http://docs.moodle.org/dev/Moodle_Mobile_Release_Notes#Moodle_Mobile_1.6