September 2, 2014
Django 1.6.7 fixes several bugs in 1.6.6, including a regression related to a security fix in that release.
Allowed inherited and m2m fields to be referenced in the admin (#23329).
Fixed a crash when using QuerySet.defer() with select_related() (#23370).
QuerySet.defer()
select_related()
Django 1.6.8 release notes
Django 1.6.6 release notes
Dec 25, 2023