[License-review] For Approval: Convertible Free Software License, Version 1.1 (C-FSL v1.1)

Richard Fontana richard.fontana at opensource.org
Fri Dec 7 06:15:19 UTC 2018

In my most recent License Committee Report I recommended that the OSI
reject the Convertible Free Software License.

Subsequently, however, at its November board meeting, the OSI decided
to withhold approval of the Convertible Free Software License, pending
submission of a redrafted version.


On Wed, Sep 26, 2018 at 3:58 AM Elmar Stellnberger <estellnb at elstel.org> wrote:
> Full Name: Convertible Free Software License Version 1.1
> Short Identifier: C-FSL v1.1
> URL: https://www.elstel.org/license/C-FSL-v1.1.txt
> Rationale and Distinguish:
> While the BSD license allows the whole world to re-license and while
> re-licensing is virtually impossible with GPL since every contributor
> would need to consent the C-FSL license goes a practical intermediate
> way restricting the right to re-license to a group called the original
> authors. That way open source developers are not excluded from making
> business with others who want to base a proprietary product on the given
> piece of open source software.
> Proliferation Category & Legal Review:
> Other/Miscellaneous
> A lawyer from the EPA (Environmental Protection Agency, USA) has already
> checked C-FSL for its proliferation properties. He has found the license
> to be compatible with other open source licenses. He decided that C-FSL
> can be used together with the CC0 license in the FDtool (functional
> dependency mining tool) project.
> list of software which uses C-FSL v1.1.:
> qcoan: https://www.elstel.org/coan
> xchroot, confinedrv, bundsteg, debcheckroot, dbschemacmd: also found at
> www.elstel.org
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