Hi, I am going to upgrade sheepdog from 0.6.0 to 0.7.x with keeping the object. SD_FORMAT_VERSION is same between 0.6.0 and 0.7.x. I understand that the data format is same and it is safe. Is it right ? -------------------------- Masahiro Tsuji A.T.WORKS, INC URL http://www.atworks.co.jp