Source: Apache Software Foundation
Story Link: http://jakarta.apache.org/site/elsewhere.html#20040121.1
The Apache Software Foundation Board has approved version 2.0, of the Apache license.
"The goals of this license revision have been to reduce the number of frequently asked questions, to allow the license to be reusable without modification by any project (including non-ASF projects), to allow the license to be included by reference instead of listed in every file, to clarify the license on submission of contributions, to require a patent license on contributions that necessarily infringe the contributor's own patents, and to move comments regarding Apache and other inherited attribution notices to a location outside the license terms (the NOTICE file).The result is a license that is compatible with other open source licenses, such as the GPL, and yet still remains true to the original goals of the Apache Group and supportive of collaborative development across both nonprofit and commercial organizations.
All packages produced by the ASF will be implicitly licensed under the Apache License, version 2.0, unless otherwise explicitly stated."