Triaged
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https://code.djangoproject.com/ticket/26326 - Admin related object pop-ups not working (worksforme)
https://code.djangoproject.com/ticket/26327 - Add JSON_AGG to contrib.postgres (accepted)
https://code.djangoproject.com/ticket/26313 - Show labels next to ManyToMany with raw_id_fields (wontfix)
https://code.djangoproject.com/ticket/26329 - StaticFilesStorage permits leading slash, CachedStaticFilesStorage doesn't (accepted)
https://code.djangoproject.com/ticket/26332 - BaseCache.get_or_set() doesn't always return a value (accepted)
https://code.djangoproject.com/ticket/26334 - django.contrib.auth forms shouldn't strip whitespace from password fields (accepted)
https://code.djangoproject.com/ticket/26335 - Show SQL if migration fails (needsinfo)
https://code.djangoproject.com/ticket/26344 - EmailMultiAlternatives ignores alternatives when it has attachments and body is empty (accepted)
https://code.djangoproject.com/ticket/26346 - Error in makemigrations while changing DateTimeField default value from timezone aware datetime to naive datetime.now() (duplicate)
https://code.djangoproject.com/ticket/26349 - A cookie named "?" breaks CSRF (invalid)
Authored
--------
https://github.com/django/django/pull/6263 - Fixed #26324 -- Fixed DurationField with fractional seconds on SQLite.
https://github.com/django/django/pull/6284 - Fixed #26294 -- Clarified call_command()'s handling of args and options.
Reviewed/committed
------------------
https://github.com/django/django/pull/6251 - Fixed #26325 -- Fixed crash in MultiPartParser on filenames that normalize to an empty string.
https://github.com/django/django/pull/6222 - Fixed #25933 -- Allowed an unprefixed default language in i18n_patterns().
https://github.com/django/django/pull/6214 - Fixed #26289 -- Enabled shell tab completion on systems using libedit.
https://github.com/django/django/pull/6008 - Fixed #25971 -- Made BrokenLinkEmailsMiddleware ignore APPEND_SLASH redirects.
https://github.com/django/django/pull/5876 - Fixed #26033 -- Added Argon2 password hasher.
https://github.com/django/django/pull/6250 - Fixed #26332 -- Fixed a race condition in BaseCache.get_or_set().
https://github.com/django/django/pull/6269 - Fixed #25865 -- Made OSMGeoAdmin require GDAL only if transformation is needed.
https://github.com/django/django/pull/6131 - Fixed #25143 -- Added ArrayField.from_db_value().
https://github.com/django/django/pull/6281 - Fixed #26239 -- Added a note about how auto_now works with QuerySet.update()
https://github.com/django/django/pull/6280 - Fixed #26343 -- Sent user_login_failed signal if an auth backend raises PermissionDenied.
https://github.com/django/django/pull/6099 - Fixed #25364 -- Added support for all selenium's browsers in tests.
https://github.com/django/django/pull/6283 - Fixed #26283 -- Fixed removal of trailing nulls for SplitArrayField.