Shen 17 is under a 3 clause BSD license.  Please look at license.pdf for a full understanding of BSD, copyright and licensing.

Ports derived from Shen 17 and conformant to the standard tests for testing Shen ports are listed in the downloads section of the Shen website www.shenlanguage.org along with their certification.  We recommend using certified ports since these are most likely to be conformant to our motto of 'write once, run anywhere'.  Please look at certification.pdf for details of how to get certification.

Happy programming.

Mark Tarver
3-2-15