Questions tagged [relicensing]

Questions about changing the license of a work which has already been published under a different license (or published under all-rights-reserved copyright)

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60 views

Choice of and conversion between licenses

I have found an article with links to compare license types, but as there are so many, it's still very hard to decide, so I will have to keep reading, but what I hope to find are answers to the ...
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63 views

GPL v3 "Or Later Version" Clause -or- Counterfeiting the GPL [duplicate]

What stops someone from creating a newer version of the GPL? What prevents someone from creating a GPL v4 with permissive license terms and using the "or (at your option) any later version" ...
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24 views

How can I properly relicense MIT software to MPL 2.0 properly, while maintaining proper copyright notices

I have a project, it is a Rust one. From my understanding, with the MPL I must put a per-file header. Must I one-by-one add the MPL header to every file (perhaps including TOML files, etc.) or what? ...
2
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1answer
51 views

Can I redistribute to public domain a contribution I made to an MPL 2.0 licensed project?

I made a contribution to an MPL 2.0-licensed project a while ago. I am not the maintainer of this project, I don't own it and I'm not affiliated to it in any way (apart from this specific benevolent ...
2
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1answer
54 views

Does modifying build files (not source code) constitute a derivative work?

I am currently developing a library that uses libdwarf (licensed as LGPL 2.1). Suppose I modify the CMake files to get it to build with a different MSVCRT. What do I need to release and am I required ...
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0answers
24 views

Can the license of a previously distributed binary be changed? [duplicate]

Let's say I have a programme X licensed under the GPL, to which I am the sole contributor and copyright holder. I distribute the binaries for X and provide the source code online as required by the ...
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1answer
1k views

If a project only includes a copy of the GPL, can it be relicensed under any version?

There's a project that only includes a copy of the GNU GPLv2 accompanying it that I wish to combine with GPL-3.0-or-later code. Assume that simply including a license file applies it globally to the ...
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0answers
30 views

Do significant changes to code allow a license change from 3-BSD to something else? [duplicate]

Suppose person X writes some library foolib, licensing it under the 3-BSD license. Person Y now takes the foolib sources and develops it further, making significant changes: More functionality, ...
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2answers
390 views

Grant less restricted license from an AGPL project

I have developed a library which is licensed under AGPL. Before the library was licensed under MIT. I changed to AGPL because some commercial companies did use the library without commiting bugfixes ...
0
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1answer
67 views

Can I use a (modified) LGPL-2.1 library in my MIT-licensed library?

I am developing a Modbus library for use on microcontrollers. Internally, I am using an (apparently) heavily-modified version of libmodbus (slightly-modified from the version that comes with ...
18
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3answers
6k views

Can I relicense an abandoned GPL project if the copyright owners are no longer responsive?

Suppose I want to use GPL-copyrighted software in a closed-source project. With actively maintained projects I can contact the copyright holders to see if I can work out an agreement with them. But ...
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1answer
36 views

Modern Alternatives for the Common Public Attribution License

I am looking for a modern alternative or similar license to the Common Public Attribution License. Here are some of the specific license attributions that I am looking for: A requirement that the ...
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0answers
27 views

How do I go about having stuff licensed differently in a project licensed under a different license?

Suppose my project A is licensed under AGPL v3. Now I choose to include stuff (a filter list actually) from different sources, which are licensed under GPLv2, CC-BY 4.0, and I have combined them in a ...
6
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2answers
300 views

Does the BSD licence implicitly apply to derived work?

Moved from the discussion of this answer, which makes the following claim about BSD licences: The 3BSD licence requires (in clause 1) that your copyright notices be preserved, and that some licence ...
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0answers
25 views

BSD 3-Clause License Changed to GNU General Public License v2.0 [duplicate]

I had previously downloaded an open source project under the BSD 3-Clause, which I am planning to make use of in a commercial product. As far as I understand, this license will permit this in a closed ...
0
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1answer
63 views

Can a copy-left licensed software mutate to a permissive one? Can a permissive licence mutate to a copy-left one?

I am a bit lost with license compatibility and re-licensing. See this example: Author Alice is author and holds copyright of software under GPL3. This software supports plugins. Author Bob authors a ...
2
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1answer
97 views

When using a dependency with an Apache license but has sub-dependencies under GPL, do I need to open source my own code?

When using a dependency with an Apache license but has sub-dependencies under GPL, do I need to open source my own code? Based on my own research, it appears I would have to abide by the full line of ...
2
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1answer
230 views

Transpiled Source-Code License & Copyright Holder

Can Transpiled Output Source-Code Have Different License And Different Copyright Holder Than Input Source-Code ? Prj-A──>─┬─>Prj-TP──>────┬─>Prj-┐ (Apache) │(Python-to-C++)│ TP │ ...
2
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1answer
91 views

Can you use a less restrictive open source licence from the one your depedency has?

Without loss of generality, suppose you have an open source Java project with Gradle as the build system, and you want to add the MIT licence to it. Consider the cases: Case 1. From the build.gradle ...
1
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1answer
138 views

Is it a violation of the GPL (or any other license) for Linux images on Azure to have 'plans' associated with them in all future copies?

Some images on Azure are 'supported' via a 'plan' (see for example https://docs.microsoft.com/en-us/azure/virtual-machines/windows/cli-ps-findimage). See for example: https://azuremarketplace....
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5answers
8k views

Can there be a copyright on negative code?

This is a hypothetical question, but I am curious. Feel free to ignore it, when it seems too theoretical for you. Some people may know the situation that you implement a feature and in the end you ...
2
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2answers
94 views

Can code licensed under AGPL also be (re)licensed under LGPL by its contributor?

I have a puzzling question: Somebody contributed to a AGPL licensed project (he is not the owner). Now this code could also be applied to a different project licensed under LGPL. Could the author of ...
3
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1answer
59 views

Credit for re-used public domain code?

If I get some code off of the public domain, and I make major changes, can I re-license it and put my copyright on it?
38
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2answers
3k 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 ...
3
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1answer
92 views

Change license from Ritchey Extra Permissive License v2 to Zero-Clause BSD

Can I take something which is licensed under the Ritchey Extra Permissive License v2, and use the sub-licensing clause to distribute it under the Zero-Clause BSD license?
2
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2answers
73 views

Relicense a GPL 3 project which has other contributors

I am the author of an open-source program. I am the primary author, and the repository on github is owned by me. There are however, ~3 other individuals who have made a few dozen commits into the ...
1
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1answer
709 views

Using MIT/Apache License 2.0 project in a SaaS product, Limitations from its dependencies

I have a specific question with respect to using a project which is licensed under MIT/Apache 2.0 in a SAAS product (proprietary). The open source project have multiple dependencies, if any of the ...
4
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1answer
93 views

Can I change the license of a forked project from LGPLv3 to MIT?

I have forked a project with LGPLv3 license and I did there a lot of changes. Can I distribute a new version under the MIT license? Or only the possibility is to write the code from "scratch"? ...
1
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1answer
51 views

Tizen OS "sample" projects are all generated to contain the Flora license. Must derivative works also apply the Flora license?

When starting a new project in the Tizen Studio, you are given two options: Start with a template project Start with a sample project The sample projects (like several watches, several simple apps, ...
2
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1answer
125 views

How does monetization of opensource app works?

I have a couple of questions regarding making a PRO version of an app. If I want to make a PRO version with more features of my already existing open-sourced MIT licensed app, what changes should I ...
5
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1answer
497 views

Upstream re-licensing project from GPL-3.0 to MIT allowed?

Wappalyzer has recently been re-licensed to MIT; however, it was previously licensed under GPLv3. I had opened an issue to clarify whether it was GPL-3.0-or-only, or GPL-3.0-or-later before this ...
4
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2answers
820 views

Can I use open source code with Apache 2.0 license in my thesis?

Is it permissible? Do I need to specifically mention it somewhere in my thesis?
3
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1answer
112 views

Distribute binaries of GNU GPL licensed project without source as copyright holder

I don't quite understand what I, the copyright holder of a project, am permitted to do according to the license I have given my project. I want the source code for most versions of the project to be ...
1
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1answer
59 views

Any lasting licensing implications from previously used, subsequently dropped library dependencies or usage licenses?

I will start off with this excerpt from Qt's legal faq to give some context: 3.13. I have started development of a product using the open source version of Qt, can I now purchase a commercial ...
2
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1answer
120 views

Changing the open source license of a forked project (EUPL to GPL)

I believe context is important, so here is a little story. Let's imagine (all characters and events in this story - even those based on real people - are entirely fictional) that Alice has developed ...
10
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5answers
3k views

Is it possible to change the current GPLv3 license to something else?

Essentially I am just testing out stuff, here is my situation: I am developing a program which consists of several code files. I made a public repository on github where I regularly update those files....
4
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3answers
1k views

Can GPLv2 licensed software be re-published under LGPLv2.1?

I have read Can LGPL 2.1 licenses software be re-published under GPL 3.0? and followed link to GPL license compatibility matrix in the GPL FAQ, which is confusing me a bit: If I understand the table ...
65
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2answers
3k views

Relicensing content under CC-BY-SA

I have compiled a body of work from numerous contributors, who all licensed their individual works to me under CC-BY-SA version 3. Can I now instead redistribute their work under CC-BY-SA version 4?
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0answers
37 views

In the Apache-2.0 what changes do we need to state?

In Apache 2.0 do I need to disclose the scource as it is technically an addition ammounting up to a modification. Give some details on NOTICE if possible.
3
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2answers
71 views

Merging bug fixes from a project with a different license

Recently I discovered my project of mine (call it A), was cloned by another project (call it M) to create a port for a different platform. "A" was originally licensed as MIT, but has since been ...
1
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1answer
679 views

Relicensing from Apache-2.0 to Apache-or-MIT

I'd like to relicense one of my projects from Apache 2.0 to Apache-or-MIT dual license for consistency with the outer community (Rust — see here), and to allow GPLv2 compatibility, which I was ...
5
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1answer
158 views

Open-source license that should aware if I want monetize my project

I'm creating a website. Some of functionaly is using open-source libraries from npm, github, etc. I want to monetize my sites using ads, or even I want to create some sites template and sell to ...
2
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1answer
233 views

Copyright of modifications and derivative works of Python License 2 licensed software

I am writing a Python package in which I plan to vendorize a modified copy of part of another package that was released under Python License 2 (it is not part of the PSL and not subject to any other ...
1
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1answer
95 views

Using only certain files out of GPL code

The whole of atk1.0-2.4.0 is listed under GNU-GPLv2.0. Can I take certain files out of GNU GPL license code and use it under different license / no license, or is this considered as obfuscation of ...
4
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2answers
2k views

Clarification: Dual licensed under the MIT or GPL Version 2 licenses

I've been reading the differences between these two licenses for a few hours now and it is still quite not clear to me how this duality works. As far as I understood, the MIT license basically gives ...
4
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2answers
225 views

Is it possible to liberate source code through double-licensing changes?

Let me describe the situation: there's an old piece of software (a game) with source code publically available. Source code was (officially, legally) released with following non-free license: The ...
1
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0answers
29 views

What is a good strategy for gradually preparing a switch to a new version of a license / new license?

I was interested to discover the GPL Cooperation Commitment today, and more particularly the COMMITMENT file they propose to include in a project under GPL v2 or LGPL v2 or v2.1: https://github.com/...
12
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1answer
4k views

Can I change the license of a forked project to the MIT if the license of the parent project has changed from the GPL to the MIT?

Some time ago I have forked a project on the GitHub that used the GNU GPL v3 license. So I also had to use the GPL license in my fork. Recently, the author of the original project changed license to ...
6
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2answers
1k views

License validity of unreleased project

For educational purposes I've open sourced my blog on GitHub (https://github.com/nehalist/nehalist.io), which is based on a fork of an MIT licensed repo (https://github.com/gatsbyjs/gatsby-starter-...
5
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1answer
806 views

Can I change the license of re-written code?

The is a single file source code that I have used as a base for my little project. That source code already works as it is. The problem is its syntaxes, variable naming, spacing, and so many unused ...