Unreal Engine 4.23 was released today. A few of the new features are listed as follows:
 – Unreal Engine’s new physics and destruction system called Chaos (Beta)  
 – Virtual texturing, which is a new way to handle very large textures (Beta)   
 – Unreal Insights, a new unified profiling experience (Beta)    
 – HoloLens 2 native support (Beta)   
– Ray tracing improvements   
– Niagara improvements   
– Virtual production improvements
The full release notes are listed HERE.
The Chaos destruction system was previewed back in March at GDC in the video below:
