I've uploaded YafaRay-E v2.0.2 with some fixes respect to v2.0.1:
- Fixed crash when Blend materials were used and their components were also blend, which had some component materials missing
- Max value for the dark noise factor parameter expanded to 1.0 to allow even darker areas to have better AA sampling
- Fix for Oren Nayar to avoid generating white/black dots when used together with bump mapping
- Fix for black dots using HDRI spherical and Coated Glossy
More information at this forum thread.