The Unicode Consortium’s mission is to enable people around the world to use computers in any language. In furtherance of this mission, the Consortium makes its standards, specifications, software, and data freely available to all users around the world under its Unicode Terms of Use and various highly permissive open-source licenses. In order to make its products freely available in this manner, the Consortium needs permission from contributors to freely use, modify, and distribute their contributions as part of the Consortium’s products.
The Consortium has adopted a standard Contributor License Agreement (CLA) for this purpose. The Unicode CLA ensures that a contributor retains ownership of any intellectual property rights in their contribution while granting the Unicode Consortium the necessary legal rights to use, modify, and distribute that contribution in Consortium products. Unicode CLAs are based on the Apache Software Foundation's CLAs, which are well-known in the industry and widely adopted by many respected open source projects.
For further information, please see the Unicode Consortium Intellectual Property, Licensing & Technical Contribution Policies.