https://www.djangoproject.com/weblog/2013/nov/06/django-16-r...
The release notes are here:
https://docs.djangoproject.com/en/1.6/releases/1.6/
Also: if you downloaded the package in the period between the parent link going up, and now, you might want to grab it again. The first roll of the 1.6 package (which wasn't announced, so we could do final checks first) failed to update our trove classifier, so the package was regenerated, which changed its signature and checksums.