4 ms·

This is going off-topic, but I'm curious. Does this mean I can take a GPL project, modify it, then sell the binaries+source for $$$ and refuse to release my mod

by Asooka 4y ago

This is going off-topic, but I'm curious. Does this mean I can take a GPL project, modify it, then sell the binaries+source for $$$ and refuse to release my modifications for free?

ForHackernews 4y ago
Yes, of course. You are required to make the patches of your modifications available under the GPL, but you are not required to distribute your modified binaries for free.
- pabs3 4y ago
  > You are required to contribute patches of your modifications back to the upstream project That is not required by the GPL, you only have to distribute source to people you distribute binaries to. Those people can decide to redistribute it (or not) to anyone (including upstream) of course, and they are bound by the same terms as you are.
  - ForHackernews 4y ago
    Yeah, edited.
jsty 4y ago
Yes, as long as you make the source available to customers under a GPL-compatible license (i.e. with no restrictions on their modification or distribution), you can charge whatever you like.
- HideousKojima 4y ago
  Though it only takes a single buyer publishing your changes to potentially undermine such a business model.
  - mananaysiempre 4y ago
    I think Red Hat’s approach is that they will refuse to sell you any more versions if you do that. I’m not sure if I like it or not.
    - HideousKojima 4y ago
      Not sure how they'd enforce that since you can republish anonymously. Also not sure how the various CentOS alternatives that have popped up in recent years would work in that case, they'd need to find a new person to buy it every time there's an update.
      - jks 4y ago
        With CentOS, Red Hat pulled a cunning move: they started supporting the project themselves, then after some time changed its direction from a repackaged white-box Red Hat to a fast-moving prerelease Red Hat. Now it's much harder for a bigger business to decide which of the CentOS-lookalikes to choose.
akagusu 4y ago
Your modifications will be GPL licensed so you still need to provide the source code for your modifications. Roughly speaking, with GPL binaries can cost someone money but source code is always free of charge.

by Asooka 4y ago

This is going off-topic, but I'm curious. Does this mean I can take a GPL project, modify it, then sell the binaries+source for $$$ and refuse to release my modifications for free?

ForHackernews 4y ago

Yes, of course. You are required to make the patches of your modifications available under the GPL, but you are not required to distribute your modified binaries for free.

pabs3 4y ago
> You are required to contribute patches of your modifications back to the upstream project That is not required by the GPL, you only have to distribute source to people you distribute binaries to. Those people can decide to redistribute it (or not) to anyone (including upstream) of course, and they are bound by the same terms as you are.
- ForHackernews 4y ago
  Yeah, edited.

jsty 4y ago

Yes, as long as you make the source available to customers under a GPL-compatible license (i.e. with no restrictions on their modification or distribution), you can charge whatever you like.

HideousKojima 4y ago
Though it only takes a single buyer publishing your changes to potentially undermine such a business model.
- mananaysiempre 4y ago
  I think Red Hat’s approach is that they will refuse to sell you any more versions if you do that. I’m not sure if I like it or not.
  - HideousKojima 4y ago
    Not sure how they'd enforce that since you can republish anonymously. Also not sure how the various CentOS alternatives that have popped up in recent years would work in that case, they'd need to find a new person to buy it every time there's an update.
    - jks 4y ago
      With CentOS, Red Hat pulled a cunning move: they started supporting the project themselves, then after some time changed its direction from a repackaged white-box Red Hat to a fast-moving prerelease Red Hat. Now it's much harder for a bigger business to decide which of the CentOS-lookalikes to choose.

akagusu 4y ago

Your modifications will be GPL licensed so you still need to provide the source code for your modifications. Roughly speaking, with GPL binaries can cost someone money but source code is always free of charge.