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Wagtail 1.6 release notes - IN DEVELOPMENT
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.. contents::
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What's new
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Minor features
~~~~~~~~~~~~~~

 * Page slugs now allow unicode on Django >= 1.9 (Behzad Nategh)
 * Image upload form in image chooser now performs client side validation so that the selected file is not lost in the submission (Jack Paine)
 * oEmbed URL for audioBoom was updated (Janneke Janssen)
 * Remember tree location in page chooser when switching between Internal / External / Email link (Matt Westcott)
 * ``FieldRowPanel`` now creates equal-width columns automatically if ``col*`` classnames are not specified (Chris Rogers)
 * Form builder now validates against multiple fields with the same name (Richard McMillan)
 * The 'choices' field on the form builder no longer has a maximum length (Johannes Spielmann)
 * The wagtailimages.Filter model has been removed, and converted to a Python class instead (Gagaro)
 * Multiple ChooserBlocks inside a StreamField are now prefetched in bulk, for improved performance (Michael van Tellingen, Roel Bruggink, Matt Westcott)


Bug fixes
~~~~~~~~~

 * Email templates and document uploader now support custom ``STATICFILES_STORAGE`` (Jonny Scholes)
 * Removed alignment options (deprecated in HTML and not rendered by Wagtail) from ``TableBlock`` context menu (Moritz Pfeiffer)
 * Fixed incorrect CSS path on ModelAdmin's "choose a parent page" view
 * Prevent empty redirect by overnormalisation
 * "Remove link" button in rich text editor didn't trigger "edit" event, leading to the change to sometimes not be persisted (Matt Westcott)


Upgrade considerations
======================

Form builder ``FormField`` models require a migration
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The ``choices`` field on the ``wagtailforms.models.AbstractFormField`` model has been changed from a ``CharField`` to a ``TextField``, to allow it to be of unlimited length. If you are using the ``wagtailforms`` module in your project, you will need to run ``python manage.py makemigrations`` and ``python manage.py migrate`` after upgrading, in order to apply this change to your form page models.

``wagtailimages.Filter`` model has been removed
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The ``wagtailimages.Filter`` model has been removed, and replaced with a ``Filter`` class instead. This class can be imported from the same location as the model: ``wagtail.wagtailimages.models.Filter``. The ``Filter`` class has the same API as the ``Filter`` model did, with the exception that Model methods such as ``Filter.save()``, and ``Filter.objects.get()`` have been removed.

``TagSearchable`` needs removing from custom image / document model migrations
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The mixin class ``wagtail.wagtailadmin.taggable.TagSearchable``, used internally by image and document models, has been deprecated. If you are using custom image or document models in your project, the migration(s) which created them will contain frozen references to ``wagtail.wagtailadmin.taggable.TagSearchable``, which must now be removed. The line:

.. code-block:: python

    import wagtail.wagtailadmin.taggable

should be replaced by:

.. code-block:: python

    import wagtail.wagtailsearch.index

and the line:

.. code-block:: python

    bases=(models.Model, wagtail.wagtailadmin.taggable.TagSearchable),

should be updated to:

.. code-block:: python

    bases=(models.Model, wagtail.wagtailsearch.index.Indexed),