Context : Copyleft relies on universal Copyright laws to enforce freedom for a piece of work. The Free Software Foundation defines four freedoms: use, modify, distribute, and distribute modifications. To guarantte these freedoms to every user, GPL forbids any restriction coming from other licenses.
From GPLv2 for TinyERP 1.0-4.0 to AGPLv3 for Odoo 8.0, Odoo software license is following up the changes of GPL, which is a strong copyleft license, but it suffers from the ASP loophole and lacks a linking exception. And AGPL v3 is not well suited for the CMS features. LGPL was created to fix this, by adding a linking exception on top of GPL. Odoo 9 changes license to LGPL v3, becomes Odoo Community Edition, it will pemit selling Odoo Apps. Odoo Enterprises Edition will contain a set of new Apps on top of Odoo Community.
Odoo 9 community
- Odoo Software can be used, modified, distributed by anyone.
- Odoo project is fully hosted on GitHub, access to anyone (source code, bug reports, pull requests)
- All translations are on Transifex.com
Odoo 9 enterprise :
- Proprietary license applies to Enterprise Apps only
using requires Odoo Enterprise subscription
modifications are allowed
distribution only to Odoo Enterprise subscribers