Start now has transparency.
Virtual Desktop improved-you can now drag a window to a Virtual Desktop! Previously, you had to right-click and use a context menu. You can also drag a window to the “+” icon to both create a Virtual Desktop and move the window to it in single step.
Cortana now also works on the desktop in China, the UK, France, Italy, Germany, and Spain – in addition to the U.S
Introduced a network fly-out from the taskbar when you click on the network icon for quick access to your network settings
The Photos app has been updated to support RAW files.The updated Live Tile for the Photos app will now include your photos on OneDrive in the recent photo rotation where previously you would only see local photos.
An updated experience for handwriting panel recognition optimized for short text entry.
Lock screen looks awesome.