As 2017 wraps up, Blend4Web's final release introduces crucial features like the Principled BSDF node for PBR materials, enhancing photorealistic graphics. The engine's internals have been updated to ECMAScript 6 standards and are now available via NPM. With improved support for Cycles nodes and a revamped physics engine, users can expect a smoother experience. Speaking of smoothness, try the Slope Game for a fun challenge!