The 1.7 release is another great upgrade to the solid Django ecosystem. Personally I am very much looking forward to native migrations (another step forward from South, which by itself was awesome) as well as some of the new custom QuerySet and Manager functionality.
That said, there seems to be a slight hiccup in third-party apps moving towards 1.7, since those that have existing South migrations are in the dilemma of whether to break backwards compatibility in moving to the native migrations framework. Also there is a nice chunk of deprecated APIs (such as @transaction.atomic) that many projects will throw warnings about now, until those are patched.
Personaly, I've already started migrating projects to 1.7 in anticipation of an upcoming release in the next few weeks.
Kudos!