Why not continue to use the New BSD License as previously used by Jasig projects?
The New BSD License is a very simple and straightforward open source license. Its simplicity is both its greatest strength and its greatest weakness. This license simply does not provide enough protection for either contributors or adopters to really understand the terms under which the software is being shared. Jasig wanted to move to a more comprehensive license that fully defined the nature of the agreement and provided clearer protection to all the parties involved.
