Any Forum/board Software Written In Yii?

I’m not sure if this is right place. I read some categories and I’m not sure if it fits here.

If not then mod help me move in right place.

I need a link to open source board/forum software written in Yii if Exists. I read MyBB was considering moving to Yii but I cannot find the last decision. Is there such a thing? I mean some serious software not something like YiiForo or Forum Extension in extensions repos