Full list of changes/improvements:
*Update to My Game & Apps to allow sorting of games and application lists, and separate queue lists for games, applications and installs
*Ability to delete game and application save data
*Improved installation and DLC management
*Addition of the controller battery power indicator
*Improved UI for accessing friends, achievements, messages, and party chat
*Game DVR app to be included in the Xbox OneGuide as an app channel
*Update to the boot progress indicators for system update
*Improve consistency of UX for update & install progress
*Separate game, application, and install queue lists
*Addition of USB keyboard support
*Stability and performance update
*Improved NAT detection
*Network Troubleshooter improvements
*Blu-ray quality improvements
*Significant performance and stability improvements