The pfSense project has changed its license and clarified some of its copyright and trademark conditions. "pfSense is moving to the Apache License 2.0 in order to align the goals of the project with other (unannounced) offerings from Netgate. The Apache License 2.0 is a permissive license similar to the MIT License. The main conditions of this license require preservation of copyright and license notices. Where the 2-Clause and 3-Clause BSD licenses provides no direct language around the areas of copyright, patents and trademarks, the Apache License does. The Apache License is very clear that individual contributors grant copyright license to anyone who receives the code, that their contribution is free from patent encumbrances (and if it is not, that they license that patent to anyone who receives the code,) and that use of Trademarks extends only as far as is necessary to use the product." The full announcement has more details on the license change and pfSense's trademark policy.