Yes. Significant reorganizations of functionality not yet in the platform took place between 7.6.3 and 7.8.1 time frames. When we add that functionality (aeson, for example), it pulls a bunch of that functionality into the platform (builder, for example). If we release HP on 7.6.3, then either we don't include the new functionality at all (the decision back last Fall when we considered this), or we release on 7.6.3, with the new functionality, but have to accept that the APIs will wholly change when we release with 7.8.x down the road.