Google app engine : Viewing the different versions of your app
your app is you_project_id.appspot.com
you can view different versions of your app by adding versionnumber and dash in front of that
example: (URLs aren’t mean to work)
my example project url is:
http://coolaproject-1231-1231.appspot.com
i can view both version 1 and version 2
to view version 1 it would be
http://1-dot-coolaproject-1231-1231.appspot.com
to view version 2 it would be
http://2-dot-coolaproject-1231-1231.appspot.com
etc.