Original Post
Release 2.5.5 of Diligent Engine packs a lot of new features.
Post-Processing Effects

Screen-Space Ambient Occlusion



PBR Material Improvements:
- Clearcoat
- Anisotropy
- Sheen
- Iridescence
Another major new feature is Hydrogent, an implementation of the Hydra rendering API in Diligent Engine.

Check out Diligent Engine on GitHub.