Error a la hora de actualizar

Error: no such option: --upgrade

A alguien le a ocurrido esto? en la versión 9

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ola @albertfns si no esta en v9, puede leer aqui

ERPNext Version 9 will be released on 26th September 2017

We have removed --upgrade options from bench update command. Instead now, it will take your input (Y/N) before upgrading to a major version.

ciao