In the modern world, software patents are a significant threat for the Open Source software. Therefore, I have decided to switch from the original BSD license to Apache-2 license. Whilst Apache license has the same permissive clauses as BSD license has there is an explicit definition of software patents in Apache license. The Apache License contains both a patent grant and a patent retaliation clause.

Another terms of licensing have not been changed: you can still use the code in your projects and you are not obliged to open your modifications to the code like you need in GPL. Contributed code is still licensed under BSD license.