What's new in Ember rc.7?

Is there any information anywhere about the changes made in any of the Ember RC candidates other than the changelog on Github (https://github.com/emberjs/ember.js/blob/master/CHANGELOG) ?

A lot of these changes sound awesome, but I don’t have any context for them other than the 1-liner. For instance, does “correctly preserve a views container” mean that the silly ContainerView being destroyed upon every route transition issue has been resolved?

I want to talk about the cool new toys!

The blog has a few notes as well.

Have a look at the rc7 Changelog too.