Is full with new features like:
- learn feature into started application;
- introducing Unity Package Manager;
- Services: Performance Reporting Service with support for native crashes on Android;
- Timeline support for Avatar Masks on Animation Tracks;
- Video with pixel aspect ratio support for non-square pixel;
- WebGL come with linear rendering to WebGL 2.0;
- OSX: support for Retina in macOS standalone builds;
- 2D: with Tilemap;
- Editor: fix scripts editor, script compilation times and splitting your project's scripts;
- Graphics: Implemented Display-P3 color gamut support for iOS and macOS;
- VR: Updated Oculus to version 1.14;
...and more
You can read one full page of changes and features from new Unity - here.