All JUMBO code is distributed under the Open Source Artistic License (http://www.opensource.org). You are free to modify the code but if you do it may no longer be distributed under the name JUMBO (or a derivative) without permission of Peter Murray-Rust. Any distribution must acknowledge the origins and also include copies of the JUMBO source (see Artistic License for details). You may not claim that a modified version is a compliant CML system and may not assert that it reads or writes CML. CML Schema is distributed under a Creative Commons license, allowing redistribution but NOT derivative works. This is to ensure that the schema does not mutate.
Peter Murray-Rust Henry Rzepa
The CML SourceForge page under "Project Details" says "Artistic License", but I assume that's for JUMBO and not for CML itself.
I've searched and searched but found nothing else about this.
I've been talking about this with PMR, including discussion on the BO-discuss list. It appears that he's going to explicitly license it under the "Artistic License 2.0", which is less confusing than that Artistic License. I don't know if he's going to keep in the above listed restrictions on using the term "CML compliant" and if a modified version can claim to read CML. One problem is that CDK (or was that Bioclipse? Or both?) is distributing a modified version of the JUMBO code, and I'm certain they and PMR want to continue to say the package supports CML.
Imported from: http://blueobelisk.stackexchange.com/questions/102