Backup: Is there any specific code difference for odoo 8 and odoo 9
My answer is YES ,
You cannot just put the module designed for odoo8 in odoo9 add-ons, it will not work.
There were major changes in ODOO9, I found the difference in the module / model:
- In stock
- In payment
- in delivery
- Website editor
- Mail (email.template replaces mail.template)
js, backbone.js raw js/jquery.
- Js [use doo.define require.js]
- jsonRpc require ('web.ajax');
ODOO9 .
, .