5.7.6 is what we call a "Development Milestone Release", and is stated to be of approximately release candidate quality. We do not have a release date, but we'

5.7.6 is what we call a "Development Milestone Release", and is stated to be of approximately release candidate quality. We do not have a release date, but we're committed to a 2-3 year release cycle, with 5.6 being the last release in Feb 2013.