This video explains and shows the new features found in iMovie for iOS Version 2.2.

iMovie 10.1 Update: https://www.youtube.com/watch?v=BEcz-H1SzqI

Full changelog from apple about what’s new in iMovie 2.2 for iOS 9:

– Create and share movies at stunning 4K resolution (3840 x 2160) on compatible iOS devices
– Create and share movies with 1080p HD video at 60 frames per second for smoother, more true-to-life action
– Use 3D Touch on iPhone 6s and iPhone 6s Plus to quickly start a new movie right from the Home Screen
– Desktop-class performance on iPad Pro with the ability to edit multiple streams of 4K video and use shortcuts with the Smart Keyboard
– Enhanced interface on iPad Pro with full-height Media Browser and pixel-for-pixel 1080 HD Viewer
– Connect a keyboard and use simple shortcuts to edit movies quickly
– Option to hide Media Browser while editing a movie
– Option to disable Ken Burns animation on a photo
– Redesigned Project Details view lets you watch movies and trailers before opening them
– Redesigned Video view lets you see more of your library while browsing videos and photos on iPad
– Improved Inspector controls with easy-to-read text labels on iPad
– Support for Slide Over and Split View when multitasking with the iMovie Extension for Photos
– Redesigned Audio browser in the iMovie Extension lets you easily browse and hear music
– Performance and stability improvements
– Support for Canadian French, Hindi, and Traditional Chinese (Hong Kong)

This update video also shows keyboard shortcuts.