MySQL Open Source License Our software is 100% GPL (General Public License); if yours is 100% GPL compliant, then you have no obligation to pay us for the licenses. This is a great opportunity for the open source community and those of you who are developing open source software. The formal terms of the GPL license can be found in the GNU General Public License section of the MySQL Reference Manual. Please note that the General Public License can be restrictive, so if it doesn't meet your needs, you are better served by our Commercial License. Specifically: • MySQL is free use for those who are 100% GPL. If your application is licensed under GPL or compatible OSI license approved by MySQL AB, you are free to ship any GPL software of MySQL AB with your application ('application' means any type of software application, system, tool or utility). You do not need a separate signed agreement with MySQL AB, because the GPL license is sufficient. We do, however, recommend you contact us as there usually are good opportunities for partnership and co- marketing. • Under the Open Source License, you must release the complete source code for the application that is built on MySQL. You do not need to release the source code for components that are generally installed on the operating system on which your application runs, such as system header files or libraries. • Free use for those who never copy, modify or distribute. As long as you never distribute the MySQL Software in any way, you are free to use it for powering your application, irrespective of whether your application is under GPL license or not. • You are allowed to modify MySQL Software source code any way you like as long as the distributed derivative work is licensed under the GPL as well. • You are allowed to copy MySQL binaries and source code, but when you do so, the copies will fall under the GPL license. • Optional GPL License Exception for PHP. As a special exception, MySQL AB gives permission to distribute derivative works that are formed with GPL-licensed MySQL software and with software licensed under version 3.0 of the PHP license. You must obey the GNU General Public License in all respects for all of the code used other than code licensed under version 3.0 of the PHP license. • FOSS Exception. We have created a license exception which enables Free and Open Source software ("FOSS") to be able to include the GPL- licensed MySQL client libraries despite the fact that not all open source licenses are compatible with the GPL.Read more about the exception. 1 From www.mysql.com/company/legal/licensing/opensource-license.html et seq. 17 January 2005 Non-Profits, Academic Institutions, and Private Individuals If you represent a non-profit organization or an academic institution, we recommend you publish your application as an open source / free software project using the GPL license. Thereby, you are free to use MySQL software free of charge under the GPL license. We believe that if you have strong reasons to not publish your application in accordance with the GPL, you should purchase commercial licenses. If you are a private individual you are free to use MySQL software for your personal applications as long as you do not distribute them. If you distribute them, you must make a decision between the Commercial License and the GPL. Please note that even if you ship a free demo version of your own application, the above rules apply. Recommendations Please note that MySQL AB can only give advice on which license is right for you. The final judgment, of course can be made only by a court of law. With that said, we recommend the commercial license to all commercial and government organizations. This frees you from the broad and strict requirements of the GPL license. To all free software enthusiasts we recommend our products under the GPL license. We believe that MySQL AB is one of the world's largest companies that offers all its software under the GPL license. To anyone in doubt, we recommend the commercial license. It is never wrong. Thanks to our cost-effective way of producing software, we are able to sell our commercial licenses at prices well under the industry average. Older Versions Note that some older versions of the MySQL database server (prior to 3.23.19) are using the Version 4, March 5, 1995, license. See the documentation for the specific version for more information. When in Doubt If you have any questions on MySQL licensing, feel free to contact us: USA and Canada: + 1-425-743-5635 or online Germany, Austria, and Switzerland: +49-(0)7022-9256-30 or [email protected] Scandinavia (Sweden, Norway, and Denmark): +46 730 234 111 France: +33 (0)1.43.077.099 or [email protected] 2 From www.mysql.com/company/legal/licensing/opensource-license.html et seq. 17 January 2005 Finland: +358 (0)9 2517 5553 Spain, Portugal, and Latin America: [email protected] OSI = Open Source Initiative, www.opensource.org/licenses GPL = GNU General Public License, http://www.gnu.org/copyleft/gpl.html Version 4.1, 12 March 2004 3 From www.mysql.com/company/legal/licensing/opensource-license.html et seq. 17 January 2005 H GNU General Public License Version 2, June 1991 Copyright © 1989, 1991 Free Software Foundation, Inc. 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. 24.4 Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to 4 From www.mysql.com/company/legal/licensing/opensource-license.html et seq. 17 January 2005 know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. 24.5 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 1. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The ``Program'', below, refers to any such program or work, and a ``work based on the Program'' means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term ``modification''.) Each licensee is addressed as ``you''. Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 2. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program.