I've been following the development and growing maturity of MuseScore for years. This is a big milestone. In the past years, we've seen a weakening and decline of the leading proprietary programs in this space, with Finale (http://www.sibeliusblog.com/news/layoffs-and-reorganization-...) and Sibelius (http://www.sibeliusblog.com/people/avids-michael-ost-speaks-...) suffering from lack of investment, reorganisation, and a growing aversion to vendor lock-in (http://blog.adamspiers.org/2013/02/25/music-industry-learns-...). In that context, it's a huge win for libre software to have MuseScore running strong, with the best release ever, and other recent milestones like the completion of the Open Well-Tempered Clavier project.

Thumbs up to all 400+ contributors involved!