Gplv3 license wiki




















Howto explains how GPLv3 would be used and applied in various different circumstances -- how the license would work "in the real world," in other words. This can help illustrate specific principles and inform comments. Copyright law provides more information about how copyright works around the world. One of the goals for GPLv3 is to make the license work more effectively in many different countries, so this page can help explain why some changes have been made.

Test Cases provides examples of how the license works in particular situations. It is a way to characterize the license through its behavior, and also serves as a set of "test cases" to catch regressions across multiple license drafts. It is our hope to collect information about the GPL and how it works.

Many things about the GPL have not changed in GPLv3, but we now have an opportunity to help everyone understand complicated concepts about general public licensing for free software. Since this wiki should have everything you need to know about GPLv3, don't be afraid to add new content. If you're not sure where it should go, feel free to create a new page, or make your suggestions on Talk:Main Page.

WikiGnomes take note: substantial damaged is being caused by SPAMmers; entire pages are being wiped out. The systematic pattern of such abuse occurs in the area of products for individuals to use, which is precisely where it is most unacceptable.

Therefore, we have designed this version of the GPL to prohibit the practice for those products. If such problems arise substantially in other domains, we stand ready to extend this provision to those domains in future versions of the GPL, as needed to protect the freedom of users. Finally, every program is threatened constantly by software patents. States should not allow patents to restrict development and use of software on general-purpose computers, but in those that do, we wish to avoid the special danger that patents applied to a free program could make it effectively proprietary.

To prevent this, the GPL assures that patents cannot be used to render the program non-free. Propagation includes copying, distribution with or without modification , making available to the public, and in some countries other activities as well. Mere interaction with a user through a computer network, with no transfer of a copy, is not conveying. If the interface presents a list of user commands or options, such as a menu, a prominent item in the list meets this criterion. However, it does not include the work's System Libraries, or general-purpose tools or generally available free programs which are used unmodified in performing those activities but which are not part of the work.

For example, Corresponding Source includes interface definition files associated with source files for the work, and the source code for shared libraries and dynamically linked subprograms that the work is specifically designed to require, such as by intimate data communication or control flow between those subprograms and other parts of the work. The Corresponding Source need not include anything that users can regenerate automatically from other parts of the Corresponding Source.

All rights granted under this License are granted for the term of copyright on the Program, and are irrevocable provided the stated conditions are met. This License explicitly affirms your unlimited permission to run the unmodified Program. The output from running a covered work is covered by this License only if the output, given its content, constitutes a covered work. This License acknowledges your rights of fair use or other equivalent, as provided by copyright law.

You may make, run and propagate covered works that you do not convey, without conditions so long as your license otherwise remains in force. You may convey covered works to others for the sole purpose of having them make modifications exclusively for you, or provide you with facilities for running those works, provided that you comply with the terms of this License in conveying all material for which you do not control copyright.

Those thus making or running the covered works for you must do so exclusively on your behalf, under your direction and control, on terms that prohibit them from making any copies of your copyrighted material outside their relationship with you. Conveying under any other circumstances is permitted solely under the conditions stated below. Sublicensing is not allowed; section 10 makes it unnecessary. No covered work shall be deemed part of an effective technological measure under any applicable law fulfilling obligations under article 11 of the WIPO copyright treaty adopted on 20 December , or similar laws prohibiting or restricting circumvention of such measures.

When you convey a covered work, you waive any legal power to forbid circumvention of technological measures to the extent such circumvention is effected by exercising rights under this License with respect to the covered work, and you disclaim any intention to limit operation or modification of the work as a means of enforcing, against the work's users, your or third parties' legal rights to forbid circumvention of technological measures.

You may convey 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; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this License along with the Program.

You may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a fee. You may convey a work based on the Program, or the modifications to produce it from the Program, in the form of source code under the terms of section 4, provided that you also meet all of these conditions:. Inclusion of a covered work in an aggregate does not cause this License to apply to the other parts of the aggregate.

You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways:. A separable portion of the object code, whose source code is excluded from the Corresponding Source as a System Library, need not be included in conveying the object code work.

In determining whether a product is a consumer product, doubtful cases shall be resolved in favor of coverage. A product is a consumer product regardless of whether the product has substantial commercial, industrial or non-consumer uses, unless such uses represent the only significant mode of use of the product. The information must suffice to ensure that the continued functioning of the modified object code is in no case prevented or interfered with solely because modification has been made.

If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term regardless of how the transaction is characterized , the Corresponding Source conveyed under this section must be accompanied by the Installation Information.

But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product for example, the work has been installed in ROM.

The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network.

Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented and with an implementation available to the public in source code form , and must require no special password or key for unpacking, reading or copying.

Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions.

When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. Additional permissions may be written to require their own removal in certain cases when you modify the work.

You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission. Skip to content. Star Permalink master. Branches Tags. Could not load branches. Could not load tags. License GPLv3 Note to developers Note to businesses or individuals including this software in products Why did we pick this license over others?

Can I integrate Closed source i. Proprietary and Open Source? Raw Blame. Open with Desktop View raw View blame. Note to developers We very much appreciate you using our code to do fun and interesting things.



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