What do you need to know about GPLv3?

What do you need to know about GPLv3?

1. Anyone can copy, modify and distribute this software. 2. You have to include the license and copyright notice with each and every distribution. 3. You can use this software privately. 4. You can use this software for commercial purposes. 5. If you dare build your business solely from this code, you risk open-sourcing the whole code base. 6.

Do you have to have a GPL 3.0 license?

All code linked with GPL 3.0 source code must be disclosed under a GPL 3.0 compatible license.

Why is GPLv3 better than other free software licenses?

What this means for users and developers is that they’ll be able to work with GPLv3-covered software without worrying that a desperate contributor will try to sue them for patent infringement later. With these changes, GPLv3 affords its users more defenses against patent aggression than any other free software license.

What are the new clauses in the GPLv3?

The four main new clauses included in GPLv3 are: Compatibility regulations – License compatibility refers to situations where two separate components licensed under different conditions combine to form a new work. GPLv3 makes it easier to manage compatible licenses, specifically addressing code under the Apache V2.0 License.

Can you use a GPL library with a different license?

If you want to avoid these problems then you need to use things with a different license or at the very least the LGPL which will allow run-time calling of libraries without the viral-spread of the GPL conditions back to your code. When in doubt you need legal advice.

What does GPLv3 mean for Apache v2.0?

GPLv3 makes it easier to manage compatible licenses, specifically addressing code under the Apache V2.0 License. Digital rights management – New clauses attempt to restrict GPL software changes at will as users appealed to legal regulations (like DMCA) for technical protective measures.

Can a patent license be granted under GPLv3?

If a user decides to take the project’s code (incorporating my contributions) under GPLv3, does that mean I’ve automatically granted GPLv3’s explicit patent license to that user? If I distribute a GPLv3-covered program, can I provide a warranty that is voided if the user modifies the program?

Can you sell a modified version of the GPL?

You are allowed to sell copies of the modified program commercially, but only under the terms of the GNU GPL. Thus, for instance, you must make the source code available to the users of the program as described in the GPL, and they must be allowed to redistribute and modify it as described in the GPL.

Can a distributed GPL program violate its own license?

Infecting means derived program violate GPL, infected means GPL program violate its own license. No problem exists when you compile a distributed GPL source as act individual (person, org, company).

Can a modified version of the GPL be distributed?

No. The GPL says that your modified versions must carry all the freedoms stated in the GPL. Thus, anyone who receives a copy of your version from you has the right to redistribute copies (modified or not) of that version. You may not distribute any version of the work on a more restrictive basis.

How does the GPL restrict what people do in software?

As usual, the GNU GPL does not restrict what people do in software; it just stops them from restricting others. Tivoization is a dangerous attempt to curtail users’ freedom: the right to modify your software will become meaningless if none of your computers let you do it.

Can a GPLv3 license be terminated for any reason?

Whenever someone conveys software covered by GPLv3 that they’ve written or modified, they must provide every recipient with any patent licenses necessary to exercise the rights that the GPL gives them. In addition to that, if any licensee tries to use a patent suit to stop another user from exercising those rights, their license will be terminated.

What is the definition of a library in LGPLv3?

LGPLv3 § 0 defines the “Library” – a work that presents one or more interfaces at which a “use” can be made by an “Application.” Class inheritance is “deemed” a use of an interface.

Do you have to license a GPL library?

If you use a GPL library in your project, that creates a derivative work of the library, and your entire project has to be licensed under the GPL. One exception: if it’s the LGPL (Lesser/Linking GPL) then dynamically linking the library does not create a derivative and you’re free to license how you want.

What is the combination permission in LGPLv3 § 4?

LGPLv3 § 4 is the combination permission at the heart of LGPLv3. It restates the license limitation provision of LGPLv2.1 § 2 to clarify that the terms on the Combined Work may not prohibit user modification of the Library code, or the debugging of such modifications to the Library code by means of whatever reverse engineering is necessary.

What does the GPL say about providing source?

If you choose to provide source through a written offer, then anybody who requests the source from you is entitled to receive it. If you commercially distribute binaries not accompanied with source code, the GPL says you must provide a written offer to distribute the source code later.

Can a drawing be licensed under the GPL?

Any material that can be copyrighted can be licensed under the GPL. GPLv3 can also be used to license materials covered by other copyright-like laws, such as semiconductor masks. So, as an example, you can release a drawing of a physical object or circuit under the GPL.