Triaged
-------
https://code.djangoproject.com/ticket/26680 - more than one row returned by a subquery used as an expression (duplicate)
https://code.djangoproject.com/ticket/23518 - Subquery does not respect explicit __exact (fixed)
https://code.djangoproject.com/ticket/26681 - save_as=True and inlines in ModelAdmin raises ValidationError (duplicate)
https://code.djangoproject.com/ticket/26695 - views.generic.base.View.options() documentation doesn't match code (fixed)
https://code.djangoproject.com/ticket/26706 - ManyToMany clear doesn't clear the items from the object but deletes from db (worksforme)
Reviewed/committed
------------------
https://github.com/django/django/pull/6648 - Fixed #26653 -- Made SyndicationFeed.latest_post_date() return time in UTC.
https://github.com/django/django/pull/6652 - Fixed #26691 -- Removed checking for a file's existence before deleting.
https://github.com/django/django/pull/6632 - Fixed #26616 -- Improved error message when AppConfig.name is invalid.
https://github.com/django/django/pull/6606 - Fixed #26617 -- Added distinct argument to contrib.postgres's StringAgg.
https://github.com/django/django/pull/6690 - Fixed #26699 -- Clarify doc theming difference in documentation
https://github.com/django/django/pull/6678 - Fixed #26686 -- Fixed crash when registering model signals with abstract senders.
https://github.com/django/django/pull/6668 - Fixed #26672 -- Fixed HStoreField to raise ValidationError instead of crashing on non-dict JSON input.
https://github.com/django/django/pull/6689 - Fixed #26526 -- Documented QuerySet.latest()'s dependency on database ordering.
https://github.com/django/django/pull/6650 - Fixed #26638 -- Allowed callable arguments for QuerySet.get_or_create()/update_or_create() defaults.
https://github.com/django/django/pull/6704 - Fixed #15250 -- Avoided extra query on some multi-table inheritance queries.
https://github.com/django/django/pull/6697 - Fixed #26698 -- Fixed PostgreSQL dbshell crash on an empty database name.
https://github.com/django/django/pull/6603 - Fixed #26604 -- Added a multiple file upload example to topics/http/file-uploads.txt.
https://github.com/django/django/pull/6703 - Fixed #12666 -- Added EMAIL_USE_LOCALTIME setting.
https://github.com/django/django/pull/6707 - Fixed #26628 -- Changed CSRF logger to django.security.csrf.
https://github.com/django/django/pull/6708 - Fixed #25127 -- Documented how to organize models in a package.
https://github.com/django/django/pull/6563 - Fixed #19963 -- Added support for date_hierarchy across relations.
Reviews of core dev work
------------------------
https://github.com/django/django/pull/6688 - Fixed #26337 -- Added i18n note about using a non-English base language