MyOdoo exclusively under AGPL/LGPL

Advantages over proprietary Odoo Enterprise License

Open Source

Open source and open source works are works whose license terms state that you receive the corresponding source code when you receive them.

Open Source Software (short OSS) is licensed under one of the licenses recognized by the Open Source Initiative (OSI). This organization bases its evaluation on the criteria of the Open Source Definition. Among other things, these licenses include the right to freely copy, modify and change the software and distribute it as it is.

Open Source Software is almost identical to the Free Software definition in its purely functional definition, the difference lies in the values represented: in Free Software the basic principle is the freedom of the user (freedom over: control of the software, cooperation with others - seen as an important social, political and ethical concern), while in Open Source (linked to the Open Source Initiative) it is only the emphasis on practical use and the development method.

https://de.wikipedia.org/wiki/Open_source

GNU Affero General Public License

The GNU Affero General Public License, AGPL for short, is a license for Free Software with copyleft derived from the General Public License (GPL). In its original form, it was designed by Affero together with the Free Software Foundation (FSF) to protect the user's freedoms even for software that is made available as a service over a network, but is not passed on in the strict sense. This is not guaranteed by the GPL.

Section 13 requires that the source code of the work licensed under AGPL must be made available to all users of the work on the network. For example, such a work is a content management system running on a server on the Internet. The clients do not have direct access to the executable files of the application, only to their output, so the obligation to make the source code of the GPL available does not apply. In such cases, the availability of the source code for all users is ensured by the AGPL.

https://de.wikipedia.org/wiki/AGPL

Starting with Odoo 9 the license was changed from AGPL to LGPL 

GNU Lesser General Public License

GNU Lesser General Public License or LGPL (formerly GNU Library General Public License) is a license for Free Software developed by the Free Software Foundation (FSF). The LGPL allows developers and companies to use and embed LGPL software in their own (even proprietary) software without being forced by a strong copyleft to disclose the source code of their own software parts. Only the modification of LGPL software parts must be made possible for end users: For this reason, in the case of proprietary software, the LGPL parts are usually used in the form of a dynamic program library (e.g. DLL), in order to enable the necessary separation between proprietary and open source LGPL parts.

The LGPL was thus developed as a compromise between the strong copyleft of the GNU General Public License (GPL) and more permissive licenses such as the BSD license and the MIT license. The word "Lesser" (in the sense of "less") in the name of the license is intended to express that LGPL cannot guarantee end users complete freedom in the use of software, since only the LGPL parts, but not any proprietary software parts, grant end users the freedom to modify.

The LGPL was published in 1991 and immediately took version number 2 to match the GPL version 2 in terms of numbers. In 1999, the LGPL was slightly modified and versioned with 2.1, and the name was renamed to GNU Lesser General Public License to reflect the FSF's position that not all libraries should use the LGPL. Version 3 of the LGPL was released in 2007 to comply with additional permissions of GPL version 3.

https://de.wikipedia.org/wiki/GNU_Lesser_General_Public_License 

Legal basis

Applies to Odoo 8/9/10/11/12/13

This is explicitly not legal advice, but our simple presentation of the licensing situation. Please consult your lawyer in this regard! 

Most users assume that open source software is free. Odoo/OpenERP can be used freely if you follow the guidelines of Affero GPL or Therefore we have compiled the most important facts here to inform you about the legal aspects.

  1. Odoo 8 was released under the "Affero GPL" license and Odoo 9 / 10 under the "Lesser GPL" by Odoo S.A. in Brussels.

  2. It is subject to a so-called "copyleft", i.e. the processing of the software may only be further licensed under the same conditions, i.e. again with a "copyleft". This applies to AGPL. With v9/10/11, i.e. LGPL, a module can be released as AGPL, LGPL or in a proprietary license by the developer. 

  3. Own modules, e.g. apps are such edits and have to be licensed under the Affero GPL for v8. This ensures the basically free license of the software as a whole. As of v9 this also applies to modules published under AGPL or LGPL.

  4. The following Affero GPL rules may be otherwise specified: Scope of the disclaimer, other documentation of legal notices and authorship, exclusion of liability for origin, restriction of use for advertising purposes, restriction of the granting of trademark rights or exemption from liability in the event of passing on. This essentially also applies to LGPL.

  5. The source code must be transferred when a copy of the program is handed over ("convey"). This is also not possible with Odoo, because the source code is written in the programming language "Python" and is installed on the server. Even with proprietary modules like the Enterprise modules of Odoo the source code is also available on the server but may not be copied or modified.

  6. In case of remote access, the source code must be stored on the server and must be downloadable (AGPL/LGPL)

  7. If the source code is passed on, this must be specified: Modification, modification date and licensing of all software under the Affero GPL or LGPL In the case of distribution in object code, the following must also be provided as an alternative: Sourcecode on a durable medium, offer for each owner of the object over three years to surrender the source code or access to the server or to their computers ("peer-to-peer") to copy the source code without charge.

  8. Program protection is not allowed. By handing over a copy of the program, the licenser waives such a protection measure. The installation information also includes an activation key or similar. This only applies to AGPL/LGPL. A verification mechanism is integrated in the Enterprise modules which reports monthly to Odoo the installed modules and the users.

  9. With the copyright software license is also a corresponding patent licensed. Opposing patent protection is therefore ineffective. 

  10. Licenses under the Affero GPL are irrevocable. Therefore Odoo has completely revised the source code since v9 to change the license to LGPL.

  11. Licenses remain with the company successor.


Proprietary license must be well thought out.

We once took the trouble to analyze the "Odoo Proprietary License v1.0" under which Odoo Enterprise Modules and also many Apps are published in the Odoo Store from v9 on and marked the most important passages. Every Enterprise customer should have a look at and check the license. Since 2020 we are again an official Odoo partner because there is an increased demand for support also for the Enterprise version and the scope of the modules as well as the other possibilities offer advantages for us.

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).

Diese Software und zugehörige Dateien (die "Software") dürfen nur verwendet (ausgeführt, geändert, nach Änderungen ausgeführt), wenn Sie eine gültige Lizenz von den Autoren erworben haben, typischerweise über Odoo apps, oder wenn Sie eine schriftliche Vereinbarung von den Autoren der Software erhalten haben (siehe die Copyright-Datei).

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).

Sie können Odoo-Module entwickeln, die die Software als Bibliothek verwenden (typischerweise je nach IT, importieren und verwenden ihrer Ressourcen), aber ohne jeglichen Quelltext oder Material von der Software zu kopieren. Sie können diese Module unter der Lizenz Ihrer Wahl verteilen, vorausgesetzt, diese Lizenz ist mit den Bedingungen der Odoo proprietären Lizenz (zum Beispiel: LGPL, mit, oder proprietäre Lizenzen ähnlich dieser).

It is forbidden to publish, distribute, sublicense, or sell copies of the Software or modified copies of the Software.

Es ist verboten, Kopien der Software oder modifizierten Kopien der Software zu veröffentlichen, zu verteilen, zu lizenzieren oder zu verkaufen.

The above copyright notice and this permission notice must be included in all copies or substantial portions of the Software.

Die obige Copyright-Vermerk und dieser Lizenz-Hinweis muss in allen Exemplaren oder erheblichen Teilen der Software enthalten sein.

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.

DIE SOFTWARE WIRD "WIE SIE IST" BEREITGESTELLT, OHNE JEGLICHE AUSDRÜCKLICHE ODER STILLSCHWEIGENDE GEWÄHRLEISTUNG, EINSCHLIESSLICH ABER NICHT BESCHRÄNKT AUF DIE GEWÄHRLEISTUNG DER GEBRAUCHSTAUGLICHKEIT, EIGNUNG FÜR EINEN BESTIMMTEN ZWECK UND NICHTVERLETZUNG.

IN KEINEM FALL HAFTEN DIE URHEBER ODER URHEBERRECHTE FÜR JEGLICHE ANSPRÜCHE, SCHÄDEN ODER SONSTIGE HAFTUNG, OB IN EINER HANDLUNG DES VERTRAGES, UNERLAUBTER HANDLUNG ODER ANDERWEITIG, DIE SICH AUS, AUS ODER IN VERBINDUNG MIT DER SOFTWARE ODER DER VERWENDUNG ODER ANDEREN HANDLUNGEN IN DER SOFTWARE ERGEBEN.

You must be aware of that! 

If you opt for an Enterprise contract, on the one hand you enter into a contract with a Belgian company, waive the warranty and if the contract is terminated, you may no longer use the software, because protection mechanisms are integrated which you may not deactivate.