All Milyn components are currently distributed under the GNU Lesser General Public License (LGPL). See http://www.gnu.org/licenses/lgpl.txt.

In the true spirit of the haus, it is our intention to make the licensing of all Milyn components as business friendly as possible. If you find the licensing of any of these components to be restrictive in any way, please contact us.

Why do we use the LGPL License?

For the same reasons as Hibernate.