Except where it explicitly says otherwise, the material found on the Quilt Web site is made available under the Apache License, which you may review by clicking here .
Certain material is marked as being available under the Artistic License , a copy of which is here. In all such cases the copyright holder is named and reference is made to the Artistic License.
Both of these are Open Source licenses. See Open Source for more information on various types of open source licenses.
The Quilt distribution includes jar files for other open source software. These are covered by their own licenses, which should be consulted.