A new version of Bengali Train data released just 4 month before. Could any one update for Bengali Wikisource?
https://github.com/tesseract-ocr/tessdata/blob/master/ben.traineddata
Last time Uer:Phe update/improve bengali OCR, https://bn.wikisource.org/wiki/user_talk:Jayantanth#OCR, but now OCR Button not appeared at edit mode.