---
title: "Django 1.8.1 リリースノート"
version: 6.0
locale: ja
source: https://docs.djangoproject.com/ja/6.0/releases/1.8.1/
canonical: https://djangodocs.dev/ja/6.0/releases/1.8.1/
---
# Django 1.8.1 リリースノート

*May 1, 2015*

Django 1.8.1 fixes several bugs in 1.8 and includes some optimizations in the
migrations framework.

## バグ修正

- Added support for serializing [`timedelta`](https://docs.python.org/3/library/datetime.html#datetime.timedelta) objects in
  migrations ([#24566](https://code.djangoproject.com/ticket/24566)).
- Restored proper parsing of the [`testserver`](/ja/6.0/ref/django-admin/#django-admin-testserver) command's positional
  arguments (fixture names) ([#24571](https://code.djangoproject.com/ticket/24571)).
- Prevented `TypeError` in translation functions `check_for_language()` and
  `get_language_bidi()` when translations are deactivated ([#24569](https://code.djangoproject.com/ticket/24569)).
- Fixed [`squashmigrations`](/ja/6.0/ref/django-admin/#django-admin-squashmigrations) command when using
  [`SeparateDatabaseAndState`](/ja/6.0/ref/migration-operations/#django.db.migrations.operations.SeparateDatabaseAndState)
  ([#24278](https://code.djangoproject.com/ticket/24278)).
- Stripped microseconds from `datetime` values when using an older version of
  the MySQLdb DB API driver as it does not support fractional seconds
  ([#24584](https://code.djangoproject.com/ticket/24584)).
- Fixed a migration crash when altering
  [`ManyToManyField`](/ja/6.0/ref/models/fields/#django.db.models.ManyToManyField)s ([#24513](https://code.djangoproject.com/ticket/24513)).
- Fixed a crash with `QuerySet.update()` on foreign keys to one-to-one fields
  ([#24578](https://code.djangoproject.com/ticket/24578)).
- Fixed a regression in the model detail view of
  [`admindocs`](/ja/6.0/ref/contrib/admin/admindocs/#module-django.contrib.admindocs) when a model has a reverse foreign key
  relation ([#24624](https://code.djangoproject.com/ticket/24624)).
- Prevented arbitrary file inclusions in [`admindocs`](/ja/6.0/ref/contrib/admin/admindocs/#module-django.contrib.admindocs)
  ([#24625](https://code.djangoproject.com/ticket/24625)).
- Fixed a crash with `QuerySet.update()` on foreign keys to instances with
  `uuid` primary keys ([#24611](https://code.djangoproject.com/ticket/24611)).
- Fixed database introspection with SQLite 3.8.9 (released April 8, 2015)
  ([#24637](https://code.djangoproject.com/ticket/24637)).
- Updated `urlpatterns` examples generated by [`startproject`](/ja/6.0/ref/django-admin/#django-admin-startproject) to
  remove usage of referencing views by dotted path in
  `django.conf.urls.url()` which is deprecated in Django 1.8
  ([#24635](https://code.djangoproject.com/ticket/24635)).
- Fixed queries where an expression was referenced in `order_by()`, but
  wasn't part of the select clause. An example query is
  `qs.annotate(foo=F('field')).values('pk').order_by('foo'))`
  ([#24615](https://code.djangoproject.com/ticket/24615)).
- Fixed a database table name quoting regression ([#24605](https://code.djangoproject.com/ticket/24605)).
- Prevented the loss of `null`/`not null` column properties during field
  alteration of MySQL databases ([#24595](https://code.djangoproject.com/ticket/24595)).
- Fixed JavaScript path of `contrib.admin`’s related field widget when using
  alternate static file storages ([#24655](https://code.djangoproject.com/ticket/24655)).
- Fixed a migration crash when adding new relations to models
  ([#24573](https://code.djangoproject.com/ticket/24573)).
- Fixed a migration crash when applying migrations with model managers on
  Python 3 that were generated on Python 2 ([#24701](https://code.djangoproject.com/ticket/24701)).
- Restored the ability to use iterators as queryset filter arguments
  ([#24719](https://code.djangoproject.com/ticket/24719)).
- Fixed a migration crash when renaming the target model of a many-to-many
  relation ([#24725](https://code.djangoproject.com/ticket/24725)).
- Removed flushing of the test database with [`test --keepdb`](/ja/6.0/ref/django-admin/#cmdoption-test-keepdb), which
  prevented apps with data migrations from using the option ([#24729](https://code.djangoproject.com/ticket/24729)).
- Fixed `makemessages` crash in some locales ([#23271](https://code.djangoproject.com/ticket/23271)).
- Fixed help text positioning of `contrib.admin` fields that use the
  `ModelAdmin.filter_horizontal` and `filter_vertical` options
  ([#24676](https://code.djangoproject.com/ticket/24676)).
- Fixed `AttributeError: function 'GDALAllRegister' not found` error when
  initializing `contrib.gis` on Windows.

## Optimizations

- Changed `ModelState` to deepcopy fields instead of deconstructing and
  reconstructing ([#24591](https://code.djangoproject.com/ticket/24591)). This speeds up the rendering of model
  states and reduces memory usage when running [`manage.py migrate`](/ja/6.0/ref/django-admin/#django-admin-migrate) (although other changes in this release may negate any performance
  benefits).