========================== Django 3.0.2 release notes ========================== *January 2, 2020* Django 3.0.2 fixes several bugs in 3.0.1. Bugfixes ======== * Fixed a regression in Django 3.0 that didn't include columns referenced by a ``Subquery()`` in the ``GROUP BY`` clause (:ticket:`31094`). * Fixed a regression in Django 3.0 where ``QuerySet.exists()`` crashed if a queryset contained an aggregation over a ``Subquery()`` (:ticket:`31109`). * Fixed a regression in Django 3.0 that caused a migration crash on PostgreSQL 10+ when adding a foreign key and changing data in the same migration (:ticket:`31106`). * Fixed a regression in Django 3.0 where loading fixtures crashed for models defining a :attr:`~django.db.models.Field.default` for the primary key (:ticket:`31071`).