copyright holders of that license document, but changing it is governed by version 3 of the License, or (at your option) any later version. 15. Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT