============================Django 1.11.13 release notes============================*May 1, 2018*Django 1.11.13 fixes several bugs in 1.11.12.Bugfixes========* Fixed a regression in Django 1.11.8 where altering a field with a uniqueconstraint may drop and rebuild more foreign keys than necessary(:ticket:`29193`).* Fixed crashes in ``django.contrib.admindocs`` when a view is a callableobject, such as ``django.contrib.syndication.views.Feed`` (:ticket:`29296`).* Fixed a regression in Django 1.11.12 where ``QuerySet.values()`` or``values_list()`` after combining an annotated and unannotated queryset with``union()``, ``difference()``, or ``intersection()`` crashed due to mismatchingcolumns (:ticket:`29286`).