

Apple says the update also includes stability improvements to streamline the performance of the app. A full list of bug fixes is below:
The 10.1.1 update follows the October release of the major iMovie 10.1 update, which introduced support for 4K video editing and 1080p videos at 60 frames per second.What's New in Version 10.1.1
- Resolves an issue with YouTube sharing that could prevent sign in for users with multiple accounts
- Fixes a problem that could prevent White Balance adjustments from being applied to clips
- Sony XAVC S clips captured at 100 fps or 120 fps now play correctly
- Resolves an issue that could lead to incorrect display of still images
- Clips are now copied when dragged from the Project Media container to events in the Library list
- Stability improvements
iMovie can be downloaded from the Mac App Store for $14.99, but Apple also provides the software free with a new Mac purchase and has done so for several years now. [Direct Link]
Article Link: iMovie for Mac Updated With YouTube Bug Fix, Stability Improvements