Contributor Agreement Workflow Update

Announcements
1

To make the acceptance of Blender’s contribution terms more explicit, pull requests will soon include an automated workflow that requires contributors to actively review and approve the terms under which their code is made available. Previously this was done by acknowledging them as part of the pull request form.

  • This needs to be done only once, and will be remembered for future PRs within the Blender project
  • The meaning and the goal of the contribution agreement is the same as the one currently used (see below)
  • Every contributor is asked to accept/confirm the contribution terms, even when existing agreements are already in place
  • If you are currently contributing on behalf of a company or corporation, you should have received direct communication about this. If not, please connect with Thomas Dinges on Blender Chat, or mail [email protected] to review the process.
  • This superseeds/addresses the topics discussed at Adopting a CLA for Blender contributions
Expand to see the Agreement

Blender Contributor Agreement

By submitting Your Contribution to the Blender project, You hereby agree to license your Contribution under one of the following licenses (“The License”), and to include the appropriate copyright notice required by The License.

  • GNU GPL License, Version 2 or later (for most Blender code)
  • Apache License 2.0 (for Cycles and other module code)
  • Creative Commons Attribution-ShareAlike 4.0 License (for documentation)
  • Other GNU GPL compatible licenses (determined by the module or area of contribution)

Hereby You certify that:

  1. The Contribution was created in whole or in part by You, and You have the right to submit it under The License; or
  2. The Contribution is based upon previous work that, to the best of Your knowledge, is covered under an appropriate open source license and You have the right under that license to submit that work with modifications, under The License; or
  3. The Contribution was provided directly to You by some other person who certified (1) or (2) and You have not modified it.

By default, copyright of your contribution remains with you.
If you rather transfer copyright to the Blender Foundation, please mention it in your contribution.

For any enquiry, reach out to [email protected].

Click on the checkbox to accept the terms as above.

Thanks,
Francesco

13 Likes
16 March 2026
4

Should we also add CC0 license for contributed assets?

1 Like
5

Or maybe lump it in with documentation? CC-SA seems fine as well?

6

“Other GNU GPL compatible licenses (determined by the module or area of contribution)” covers CC0 indirectly. I don’t think this was meant to explicitly list every license, just the most common ones.

If the agreement text changes, everybody would need to sign it again.

Assets need to be CC0, we want artists to be able to use them for any purpose without attribution.

2 Likes