Complex sentence: On 1 February 2011 Red Gate announced that.NET Reflector would become a commercial product as of version 7, which was released on 14 March 2011.
Split into simpler sentences: On 1 February 2011 Red Gate announced that.NET Reflector would become a paid-for product as of version 7. The first paid-for version was released on 14 March 2011.