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Questions tagged [gpl-3]

The General Public License, offered by GNU. Use this tag if the question involves version 3 of the license.

48 votes
11 answers
11k views

Is GPL "for research purposes only" self-contradictory?

So I used a piece of software which claims to be open source and is licensed under "GPL for research purposes only". As far as I know, GPL 2 and 3 are not themselves free, in sense that you can't ...
AndrejaKo's user avatar
  • 597
41 votes
2 answers
4k views

Do I have to change license of fork if mainstream changes license?

I forked a repository a year ago, which at the time had GPLv3 license. Mainstream repository has now applied AGPLv3 license. Do I have to change my license too ? My fork's last commit is over a year ...
Ataberk Özen's user avatar
39 votes
2 answers
4k views

Minified GPL code inside Javascript webapp

This answer on Chess Stack Exchange comes from the lead developer of a webapp for learning chess that integrates a version of Stockfish (a popular chess-playing program released under GPLv3) ...
Federico Poloni's user avatar
38 votes
3 answers
25k views

If I'm using a GPL 3 library in my project, can I license my project under MIT license?

If I'm using a library that is licensed under GPL v3 in my project, can I license my project under the MIT license? I tried to read the GPL v3 text but I cannot understand it without your assistance.
Andrew Savinykh's user avatar
36 votes
6 answers
3k views

Can I copy-paste a snippet from Stack Overflow into my GNU-GPL project?

I have found on Stack Overflow a 10-lines block of code that does exactly what I want. There is no license information in the post nor on the answerer's profile page, so the CC BY-SA 3.0 license of ...
Nicolas Raoul's user avatar
34 votes
2 answers
21k views

What exactly is Tivoization and why didn't Linus Torvalds like it in GPLv3?

I still don't understand what Tivoization is and why Linus Torvalds did not like it. Can you explain to me the big idea of Tivoization?
Ricardo's user avatar
  • 535
31 votes
4 answers
9k views

Can I use my own GPL'ed code in my closed source program?

Let's say that program A was made by me, with me being the sole copyright holder. If I license this program under the GPL-3.0, can I use that program in program B that is closed source?
sportzpikachu's user avatar
28 votes
7 answers
6k views

Embedding GPL code in proprietary software

Here's a tricky situation that I didn't encounter before: My company embeds a piece of slightly modified GPLv3 code into their otherwise proprietary application. They don't link a library or ...
Rody Oldenhuis's user avatar
26 votes
4 answers
5k views

Can an NDA block GPL freedom number 4?

Let's say a company modifies a GPLv3 software. All it's employees can use the modified software and have access to the modified source code. The company's employees don't have the right to distribute ...
ddreian's user avatar
  • 383
26 votes
3 answers
7k views

Is Apple allowed to distribute GPLv3-licensed software through its iOS App Store?

This question is specifically about GPLv3, LGPLv3, and Apple's App Store for iOS devices. Given the additional restrictions Apple imposes on iOS users (i.e. not allowing them to modify and run GPLv3 ...
Tenders McChiken's user avatar
26 votes
1 answer
7k views

What are the differences between GPL V2 and V3 licenses?

One of the most widely used and most popular free and open source software licences is the General Public License. I want to know in simple terms: what are the differences between GPL Version 2 and ...
Pandya's user avatar
  • 2,092
25 votes
1 answer
2k views

Can I release under AGPL a program that uses a GPL library?

I just wrote a program that embeds and uses a GNU-GPL library (GPLv3 or at your discretion any later version). Can I release my program under the GNU AGPL v3 license?
Nicolas Raoul's user avatar
24 votes
3 answers
9k views

Can I ignore an open source license if I checkout a version that was released prior to the code having any license?

There's a package on Github that was released fully without any license and it stayed this way for close to a year. Then just recently after no updates since the initial commit, a License was added. ...
vesperknight's user avatar
22 votes
5 answers
8k views

If I can't provide GPL source because a supplier did not provide it, am I at fault?

Let’s say that I paid a third-party company to develop a new application for me. I also make myself clear about the need to have the full property of the code at the end of the developing phase. I ...
Mburns's user avatar
  • 231
22 votes
1 answer
7k views

Is it legal for the author of an open source project to remove history of contributors' commits?

I am new to open-source world. I have contributed some code to an open-source project licensed under GPLv3 but with no contributor agreement license. Is it legal for the original author to upload the ...
Amazigh_05's user avatar

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