Whats new in Android O for developer

From recent I/O 2017 some of the features which Google has brought are to the developers.

1. Pictures in Pictures
   If you have already declared the  configChanges="true" than you don't have to mention  supportsPictureInPicture="true"
     
2. Color Management 
   Support for wide-gamut displays
   16-bit PNG, ICC profiles PNG/Webp/JPEG
   color accurate rendering of bitmaps
   
   New utilities color
3. Multi-DisplayMulti-display = Multi-Window
   user controlled or app controlled  with ActivityOptions
   Test Configuration Changes
4. Media ......Continued.....
   
5. Kotlin new programming language introduce, quite similar to JAVA, just with optimised syntax.