Sage-Tips

Does MIT license allow modification?

Yes. You cannot “re-license” MIT-licensed code, and the MIT-licensed code will remain under the MIT License, but you can redistribute it as part of another project under any license you wish. You should make it clear that any changes that you make to the MIT-licensed code are released under your new license.

Can different portions of a code be released under different licenses?

The issue of license compatibility aside, you can certainly license different portions of your code differently and this is quite common for commercial software that has Open Source integrated into it.

Can you change the license of an open source project?

Each version of the product you release is governed by it’s own license, and if you are the sole developer, you can choose whatever license you want at any time, and change it at any time.

Is MIT GPL compatible?

The MIT License is compatible with many copyleft licenses, such as the GNU General Public License (GNU GPL). Any software licensed under the terms of the MIT License can be integrated with software licensed under the terms of the GNU GPL.

Is GPL a copyleft?

The GPL series are all copyleft licenses, which means that any derivative work must be distributed under the same or equivalent license terms. Prominent free software programs licensed under the GPL include the Linux kernel and the GNU Compiler Collection (GCC).

What is dual GPL?

Dual licensing usually refers to offering software under a proprietary license and an open source license. Dual licensing usually refers to licensing software under both a proprietary license and an open source license, typically the GPL.

Does the GPL license require the author to release the modified code?

Does the GPL license require the author to release the modified source code? GPL requires you to release the modified source code only if you release the modified program. If you’ve modified a program’s source code for personal use, there’s no need to release its source code.

What is the difference between the MIT License and the GPL?

The MIT license includes all the rights the GPL gives and more. And while people who receive your distribution only receive a GPL license to elements you added, they still receive an MIT license (from the original authors, not from you) to any elements contained in the work that the authors offered under that license.

Is it possible to change the code under the same license?

As far I can see, there is no restriction about the new code being licensed under the same license. Is it really so, or is there a minimum number of changes? In my case, I would change the jQuery plugin in normal Javascript code that is executed in a CMS. This essentially means that, among other things:

Can I use a different license for a GPLed codebase?

That said, you are right that the FSF explicitly permitsthe use of more relaxed (compatible) licences on your contributions to a GPLed codebase. You are also correct that the GPL requires that the derivative codebase be covered by the GPL in its entirety (eg, s5c GNU GPL v3).