...is not confusingly similar to this License, and must make it clear that your license contains terms that differ from this License. In so naming your license, you may not use any trademark of Licensor or any Contributor. 8. Disclaimer of Warranty. LICENSED PRODUCT IS PROVIDED UNDER THIS LICENSE ON AN AS IS BASIS, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES THAT THE LICENSED PRODUCT IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE...
--BitTorrent Open Source License, Version 1.0. (Paragraph 48.)