Package: yowsup-cli Version: 2.4.102-1~bpo8+1 Severity: important Package from jessie-backports
https://github.com/tgalal/yowsup/search?utf8=%E2%9C%93&q=old_version does not return any file containing the string "old_version" so I'm guessing that this issue might be caused by a library not being up to date with Whatsapp current protocol. $ yowsup-cli registration -c .yowsup -r sms -C 43 -p 33609537924 yowsup-cli v2.0.15 yowsup v2.4.102 Copyright (c) 2012-2016 Tarek Galal http://www.openwhatsapp.org This software is provided free of charge. Copying and redistribution is encouraged. If you appreciate this software and you would like to support future development please consider donating: http://openwhatsapp.org/yowsup/donate INFO:yowsup.common.http.warequest:{"status":"fail","reason":"old_version"} status: fail reason: old_version