Triaged
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https://code.djangoproject.com/ticket/26222 - In migrating older project, after pip upgrade of Django to 1.9.2, Gunicorn crashes on failure to find validation (invalid)
https://code.djangoproject.com/ticket/26215 - FloatRangeField/IntegerRangeField with None as a range boundary doesn't round trip in serialization (accepted)
https://code.djangoproject.com/ticket/26220 - Allow SingleObjectTemplateResponseMixin to get a template_name from form_class if it's a ModelForm (accepted)
https://code.djangoproject.com/ticket/26223 - Squashing migrations with preserve_default=False keeps the default (accepted)
https://code.djangoproject.com/ticket/26232 - i18n unit test fails on xgettext in /usr/local/bin (accepted)
https://code.djangoproject.com/ticket/26228 - 500 Exceptions not logged if firewall blocks outgoing SMTP (needsinfo)
https://code.djangoproject.com/ticket/26233 - docstring of django.db.models.Q causes warning when building Sphinx docs for my project (fixed)
https://code.djangoproject.com/ticket/26226 - prefetch_related with Prefetch with queryset with explicit Ordering Ignored - single order_by (accepted)
https://code.djangoproject.com/ticket/26243 - Note in deployment checklist that PYTHONHASHSEED is randomized by default as of Python 3.3 (fixed)
https://code.djangoproject.com/ticket/26245 - Change of primary_key Field on Child Table with One-to-one Relationship Create Duplicated Record (duplicate)
https://code.djangoproject.com/ticket/26246 - Migrations fail when `'django.contrib.sites'` is included in INSTALLED_APPS (invalid)
https://code.djangoproject.com/ticket/26235 - POST to delete protected fk relationship raises ProtectedError (accepted)
https://code.djangoproject.com/ticket/26234 - Add `css_classes` parameter to Form.as_*() methods (wontfix)
Authored
--------
https://github.com/django/djangoproject.com/pull/635 - Prevented a missing search index while rebuilding the docs.
Reviewed/committed
------------------
https://github.com/django/django/pull/6129 - Fixed #26193 -- Made urlize() trim multiple trailing punctuation.
https://github.com/django/django/pull/6130 - Fixed #26126 -- Fixed transient failure of test_max_age_expiration
https://github.com/django/django/pull/6128 - Fixed #26212 -- Made forms.FileField and translation.lazy_number() picklable.
https://github.com/django/django/pull/6143 - Fixed #24727 -- Prevented ClearableFileInput from masking exceptions on Python 2.
https://github.com/django/django/pull/5585 - Fixed #25735 -- Added support for test tags to DiscoverRunner.
https://github.com/django/django/pull/6142 - Refs #19353 -- Added tests for using custom user models with built-in auth forms.
https://github.com/django/django/pull/5574 - Fixed #25687 -- Documented how to add database function support to third-party backends.
https://github.com/django/django/pull/6150 - Fixed #26219 -- Fixed crash when filtering by Decimal in RawQuery.
https://github.com/django/django/pull/6148 - Fixed #26107 -- Added option to int_list_validator() to allow negative integers.
https://github.com/django/django/pull/5658 - Fixed #25349 -- Allowed a ModelForm to unset a fields with blank=True, required=False.
https://github.com/django/django/pull/6165 - Fixed #25653 -- Made --selenium run only the selenium tests.
Reviews of core dev work
------------------------
https://github.com/django/django/pull/6145 - Fixed #26215 -- Fixed RangeField.value_to_string() serialization