This release is removing many permissions from the application, and is the first step for Android 6.0 permissions.
There is a new subtitle engine, for complex text and Unicode support..
We've changed the notification, the lockscreen and the Bluetooth control to be more standard. We've worked to simplify the code and use more standard libraries and widgets.
The previous major version, 1.6.0 added many things, but mostly accelerated the video playback speed for 4K support.