先看一張表格
起步時叫TinyERP，微小的ERP；
發展中期叫做OpenERP，開放的ERP；
歷經10年積累的軟件，客戶群，開發支持用戶群，開始構築自己的商業模式。到8版本，改名為Odoo。
同時，軟件協議也緊跟GUN的版本更新。
https://www.odoo.com/documentation/user/9.0/legal/licenses/licenses.html
odoo9的licenses原文
Odoo 9 Community Edition
Odoo 9 Community Edition is licensed under LGPL version 3 (also known as LGPLv3). See also the GPL FAQ and the compatibility matrix.
Odoo 9 Enterprise Edition
Odoo 9 Enterprise Edition is licensed under the Odoo Enterprise Edition License v1.0, defined as follows:
Odoo Enterprise Edition License v1.0
This software and associated files (the "Software") can only be used (executed, modified, executed after modifications) with a valid Odoo Enterprise Subscription for the correct number of users.
With a valid Partnership Agreement with Odoo S.A., the above permissions are also granted, as long as the usage is limited to a testing or development environment.
You may develop Odoo modules based on the Software and distribute them under the license of your choice, provided that it is compatible with the terms of the Odoo Enterprise Edition License (For example: LGPL, MIT, or proprietary licenses similar to this one).
You may use Odoo modules published under any license along with the Software, provided that their license is compatible with the terms of the Odoo Enterprise License (Including, but not limited to, any module published on the Odoo Apps Store on odoo.com/apps)
It is forbidden to publish, distribute, sublicense, or sell copies of the Software or modified copies of the Software.
The above copyright notice and this permission notice must be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Odoo Apps
Unless otherwise stated, Odoo Apps by Odoo SA (including the website themes) are published under the Odoo Proprietary License v1.0, defined as follows
Odoo Proprietary License v1.0
This software and associated files (the "Software") may only be used (executed, modified, executed after modifications) if you have purchased a valid license from the authors, typically via Odoo Apps, or if you have received a written agreement from the authors of the Software (see the COPYRIGHT file).
You may develop Odoo modules that use the Software as a library (typically by depending on it, importing it and using its resources), but without copying any source code or material from the Software. You may distribute those modules under the license of your choice, provided that this license is compatible with the terms of the Odoo Proprietary License (For example: LGPL, MIT, or proprietary licenses similar to this one).
It is forbidden to publish, distribute, sublicense, or sell copies of the Software or modified copies of the Software.
The above copyright notice and this permission notice must be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
=====================
odoo9的licenses譯文，僅供參考。
Odoo 9社區版
Odoo 9社區版根據LGPL version 3（也稱為LGPLv3）授權。另請參閱GPL FAQ和compatibility matrix。
Odoo 9企業版
Odoo 9企業版是Odoo企業版許可證1.0版的許可，日發如下：
Odoo企業版許可證1.0版
該軟件和相關文件（“軟件”）只能用於（執行，修改，修改后執行）與有效的Odoo企業訂購了正確的用戶。
與Odoo S.A.有效合作協議，上述權限也被授予，只要使用被限制在一個測試或開發環境。
您可以根據軟件開發Odoo模塊，並將根據您所選擇的許可證分發，只要它與Odoo企業版許可證的條款兼容（例如：LGPL，MIT，或專有許可與此類似）。
可以使用Odoo下的模塊和軟件一起的任何許可出版，條件是他們的許可證與Odoo企業許可證（包括條款兼容，但不限於，在Odoo應用商店上發表odoo.com/apps任何模塊）
它是被禁止出版，分發，或銷售軟件的副本或軟件的修改副本。
上述版權聲明和本許可聲明必須包含在所有副本或軟件的主要部分。
本軟件提供的“原樣”，沒有任何形式的明示或默示的擔保，包括但不限於適銷性，針對特定用途和非侵權的擔保的擔保。在任何情況下，作者或版權持有人承擔任何索賠，賠償或其他責任，不論是合同，侵權訴訟或者以其他方式，凡因，淘汰或與該軟件或使用或其他交易在連接軟件。
Odoo應用
除非另有說明，Odoo通過應用SA Odoo（包括網站的主題），均為Odoo專有許可V1.0下出版，日發如下
Odoo專有許可V1.0
該軟件和相關文件（“軟件”）僅可用於（執行，修改，修改后執行），如果你已經購買了從作者的有效許可證，通常通過Odoo應用程序，或者如果您收到的書面協議從該軟件的作者（見版權文件）。
您可以開發Odoo模塊使用該軟件作為一個庫（通常由依賴於它，將它導入並利用其資源），但沒有抄襲軟件的任何源代碼或材料。您可以根據您選擇的許可證分發這些模塊，只要該許可證是與Odoo專有許可條款（例如：LGPL，MIT，或專有許可與此類似）兼容。
它是被禁止出版，分發，或銷售軟件的副本或軟件的修改副本。
上述版權聲明和本許可聲明必須包含在所有副本或軟件的主要部分。
本軟件提供的“原樣”，沒有任何形式的明示或默示的擔保，包括但不限於適銷性，針對特定用途和不侵權的擔保的擔保。在任何情況下，作者或版權持有人承擔任何索賠，賠償或其他責任，不論是合同，侵權訴訟或者以其他方式，凡因，淘汰或與該軟件或使用或其他交易在連接軟件。
=========
Odoo 9 Community
odoo/odoo
LGPLv3 - can be used/modified/distributed by anyone
Project fully hosted on GitHub, access to anyone
Source code
Bug reports (also via Odoo Enterprise)
Pull Requests
Translations on Transifex.com
Odoo 9 Enterprise
odoo/enterprise
Proprietary license applies to Enterprise Apps only
→ Using requires Odoo Enterprise subscription
→ Modifications are allowed
→ Distribution only to Odoo Enterprise subscribers
Project fully hosted on GitHub, access to all partners
(+ some customers)
Source code
Bug reports (also via Odoo Enterprise)
Pull Requests
Translations on Transifex.com