Complex sentence: The project maintains strict policies on licensing and prefers the open-source BSD licence and its variants--in the past this has led to a comprehensive license audit and moves to remove or replace code under licences found less acceptable.
Split into simpler sentences: The project maintains strict policies on licensing and prefers the open-source BSD licence and its variants. In the past this has led to a comprehensive license audit and moves to remove or replace code under licences found less acceptable.