autoGrantPermissions is not working with an app having googleServicesVersion as "21.0.1"

earlier our app was using googleServicesVersion “17.0.1” , now we bumped up the googleServicesVersion to “21.0.1” and with this autoGrantPermissions capability is not working

Sorry, but this report is not helpful. Could you be more specific about what exactly was working and what not, provide server logs, etc? Help us to help you.