General public license, version 3 (GPLv3)
A license that guarantees that software
can be (re-)distributed only as free software,
that is
no essential freedom can ever be taken away from it,
making it more just than
- GPLv2 (General Public License, Version 2),
 - BSD (Berkeley Software Distribution),
 - MIT (Massachusetts Institute of Technology),
 
and other free software licenses.