Here's the release note:
- Updated to Android OS 5.0.1 which contains some bug fixes
- Improvements in system performance, particularly in multitasking
- New effects Live HD
- Power menu is back, based on user feedback
- Memory optimizations
- Supports OpenGL 4.5
- Improvements in localization
In short, there are no big news, but only the classic bug fix that follow a major update like a lollipop; the rollout should already be started, then let us know in the comments if you have already received.