Full release notes: https://developer.unigine.com/en/devl...
Numerous performance optimizations
VR in-the-core: no plugins, unified API, wider range of VR devices
(Experimental) animation system improvements
Asynchronous shader compilation
New engine event system
Multiple visual improvements
UNIGINE SDK is a real-time 3D engine and tools, completely free for small indie developers: https://unigine.com/get-unigine/