According to http://www.debian.org/News/2009/20090729 http://www.debian.org/News/2009/20090729 the current policy is a two-year release schedule, with the next

According to http://www.debian.org/News/2009/20090729 http://www.debian.org/News/2009/20090729 the current policy is a two-year release schedule, with the next release expected in Q1/2 2012.