0.97.3 (version)

0.97.3 - 06/05/2016

 * 1) New Metal/Plastic Material with GGX NDF
 * 2) Post Effects
 * : Exposure, when the scene is too dark, you can increase this
 * : Vignette
 * : Gamma Correction
 * 1) Pick up Sun/Sky Color from Palette
 * 2) Better Quality of Soft Shadow
 * : on the top right, enable stochastic sampling for better indirect illumination
 * 1) *It's slower (~50%) and noisy (requires   samples)
 * 2) *Use it for indoor scenes, larger exposure, or final render

Source
Update log of official website.