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174 lines
6.3 KiB
Plaintext
===============================
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Django 1.2 beta 1 release notes
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===============================
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February 5, 2010
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Welcome to Django 1.2 beta 1!
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This is the second in a series of preview/development releases leading
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up to the eventual release of Django 1.2, currently scheduled to take
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place in March 2010. This release is primarily targeted at developers
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who are interested in trying out new features and testing the Django
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codebase to help identify and resolve bugs prior to the final 1.2
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release.
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As such, this release is *not* intended for production use, and any
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such use is discouraged.
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This document covers changes since the Django 1.2 alpha release; the
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:doc:`1.2 alpha release notes </releases/1.2-alpha-1>` cover new and
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updated features in Django between 1.1 and 1.2 alpha.
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Deprecations and other changes in 1.2 beta
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==========================================
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This beta release deprecates two portions of public API, and
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introduces a potentially backwards-incompatible change to
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another. Under :doc:`our API stability policy </misc/api-stability>`,
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deprecation proceeds over multiple release cycles: initially, the
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deprecated API will raise ``PendingDeprecationWarning``, followed by
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raising ``DeprecationWarning`` in the next release, and finally
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removal of the deprecated API in the release after that. APIs
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beginning the deprecation process in Django 1.2 will be removed in the
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Django 1.4 release.
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Unit test runners
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-----------------
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Django 1.2 changes the test runner tools to use a class-based
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approach. Old style function-based test runners will still work, but
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should be updated to use the new :ref:`class-based runners
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<topics-testing-test_runner>`.
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Syndication feeds
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-----------------
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The ``django.contrib.syndication.feeds.Feed`` class is being
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replaced by the :class:`django.contrib.syndication.views.Feed` class.
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The old ``feeds.Feed`` class is deprecated. The new class has an
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almost identical API, but allows instances to be used as views.
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Also, in accordance with `RSS best practices`_, RSS feeds will now
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include an ``atom:link`` element. You may need to update your tests to
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take this into account.
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For more information, see the full :doc:`syndication framework
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documentation </ref/contrib/syndication>`.
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.. _RSS best practices: http://www.rssboard.org/rss-profile
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Cookie encoding
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---------------
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Due to cookie-handling bugs in Internet Explorer, Safari, and possibly
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other browsers, Django's encoding of cookie values was changed so that
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the characters comma (',') and semi-colon (';') are treated as
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non-safe characters, and are therefore encoded as ``\054`` and
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``\073`` respectively. This could produce backwards incompatibilities
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if you are relying on the ability to set these characters directly in
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cookie values.
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What's new in 1.2 beta
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======================
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This 1.2 beta release marks the final feature freeze for Django 1.2;
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while most feature development was completed for 1.2 alpha (which
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constituted a freeze on major features), a few other new features were
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added afterward and so are new as of 1.2 beta.
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Object-level permissions
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------------------------
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A foundation for specifying permissions at the per-object level was
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added in Django 1.2 alpha but not documented with the alpha release.
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The default authentication backends shipped with Django do not
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currently make use of this, but third-party authentication backends
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are free to do so. See the :doc:`authentication docs </topics/auth/index>`
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for more information.
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Permissions for anonymous users
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-------------------------------
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If you provide a custom authentication backend with the attribute
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``supports_anonymous_user`` set to ``True``, the ``AnonymousUser``
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class will check the backend for permissions, just as the normal
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``User`` does. This is intended to help centralize permission
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handling; apps can always delegate the question of whether something
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is allowed or not to the authorization/authentication system. See the
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:doc:`authentication docs </topics/auth/index>` for more details.
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``select_related()`` improvements
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---------------------------------
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The ``select_related()`` method of ``QuerySet`` now accepts the
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``related_name`` of a reverse one-to-one relation in the list of
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fields to select. One-to-one relations will not, however, be traversed
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by a depth-based ``select_related()`` call.
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The Django 1.2 roadmap
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======================
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Before the final Django 1.2 release, at least one additional
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preview/development releases will be made available. The current
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schedule consists of at least the following:
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* Week of **March 2, 2010**: First Django 1.2 release
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candidate. String freeze for translations.
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* Week of **March 9, 2010**: Django 1.2 final release.
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If necessary, additional beta or release-candidate packages will be
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issued prior to the final 1.2 release. Django 1.2 will be released
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approximately one week after the final release candidate.
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What you can do to help
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=======================
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In order to provide a high-quality 1.2 release, we need your
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help. Although this beta release is, again, *not* intended for
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production use, you can help the Django team by trying out the beta
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codebase in a safe test environment and reporting any bugs or issues
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you encounter. The Django ticket tracker is the central place to
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search for open issues:
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* https://code.djangoproject.com/timeline
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Please open new tickets if no existing ticket corresponds to a problem
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you're running into.
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Additionally, discussion of Django development, including progress
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toward the 1.2 release, takes place daily on the django-developers
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mailing list:
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* http://groups.google.com/group/django-developers
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... and in the ``#django-dev`` IRC channel on ``irc.freenode.net``. If you're
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interested in helping out with Django's development, feel free to join the
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discussions there.
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Django's online documentation also includes pointers on how to
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contribute to Django:
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* :doc:`How to contribute to Django </internals/contributing/index>`
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Contributions on any level -- developing code, writing documentation
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or simply triaging tickets and helping to test proposed bugfixes --
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are always welcome and appreciated.
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Development sprints for Django 1.2 will also be taking place at PyCon
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US 2010, on the dedicated sprint days (February 22 through 25), and
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anyone who wants to help out is welcome to join in, either in person
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at PyCon or virtually in the IRC channel or on the mailing list.
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