add change log for new extractor design
add change log for new extractor design

wuhuatianbao007/orange,thisverygoodhhhh/orange,thisverygoodhhhh/orange,jxskiss/orange,jxskiss/orange,sumory/orange,wuhuatianbao007/orange,thisverygoodhhhh/orange,jxskiss/orange,sumory/orange,wuhuatianbao007/orange,sumory/orange