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wagtail/docs/releases/2.3.rst

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===============================
Wagtail 2.3 (LTS) release notes
===============================
*October 23, 2018*
.. contents::
:local:
:depth: 1
Wagtail 2.3 is designated a Long Term Support (LTS) release. Long Term Support releases will continue to receive maintenance updates as necessary to address security and data-loss related issues, up until the next LTS release (typically a period of 8 months).
Note that Wagtail 2.3 will be the last release branch to support Django 1.11.
What's new
==========
Added Django 2.1 support
~~~~~~~~~~~~~~~~~~~~~~~~
Wagtail is now compatible with Django 2.1. Compatibility fixes were contributed by Ryan Verner and Matt Westcott.
Improved color contrast
~~~~~~~~~~~~~~~~~~~~~~~~
Colour contrast within the admin interface has been improved, and now complies with WCAG 2 level AA. This was completed by Coen van der Kamp and Naomi Morduch Toubman based on earlier work from Edd Baldry, Naa Marteki Reed and Ben Enright.
Other features
~~~~~~~~~~~~~~
* Added 'scale' image filter (Oliver Wilkerson)
* Added meta tag to prevent search engines from indexing admin pages (Karl Hobley)
* EmbedBlock now validates against recognized embed providers on save (Bertrand Bordage)
* Made cache control headers on Wagtail admin consistent with Django admin (Tomasz Knapik)
* Notification emails now include an "Auto-Submitted: auto-generated" header (Dan Braghis)
* Image chooser panels now show alt text as title (Samir Shah)
* Added ``download_url`` field to images in the API (Michael Harrison)
* Dummy requests for preview now preserve the HTTP Authorization header (Ben Dickinson)
Bug fixes
~~~~~~~~~
* Respect next param on login (Loic Teixeira)
* InlinePanel now handles relations that specify a related_query_name (Aram Dulyan)
* before_delete_page / after_delete_page hooks now run within the same database transaction as the page deletion (Tomasz Knapik)
* Seek to the beginning of image files when uploading, to restore compatibility with django-storages Google Cloud and Azure backends (Mikalai Radchuk)
* Snippet chooser modal no longer fails on snippet models with UUID primary keys (Sævar Öfjörð Magnússon)
* Restored localization in date/time pickers (David Moore, Thibaud Colas)
* Tag input field no longer treats 'б' on Russian keyboards as a comma (Michael Borisov)
* Disabled autocomplete dropdowns on date/time chooser fields (Janneke Janssen)
* Split up ``wagtail.admin.forms`` to make it less prone to circular imports (Matt Westcott)
* Disable linking to root page in rich text, making the page non-functional (Matt Westcott)
* Pages should be editable and save-able even if there are broken page or document links in rich text (Matt Westcott)
* Avoid redundant round-trips of JSON StreamField data on save, improving performance and preventing consistency issues on fixture loading (Andy Chosak, Matt Westcott)
* Users are not logged out when changing their own password through the Users area (Matt Westcott)
Upgrade considerations
======================
``wagtail.admin.forms`` reorganized
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The ``wagtail.admin.forms`` module has been split up into submodules to make it less prone to producing circular imports, particularly when a custom user model is in use. The following (undocumented) definitions have now been moved to new locations:
+----------------------------------------------+---------------------------------------+
| Definition | New location |
+==============================================+=======================================+
| LoginForm | wagtail.admin.forms.auth |
+----------------------------------------------+---------------------------------------+
| PasswordResetForm | wagtail.admin.forms.auth |
+----------------------------------------------+---------------------------------------+
| URLOrAbsolutePathValidator | wagtail.admin.forms.choosers |
+----------------------------------------------+---------------------------------------+
| URLOrAbsolutePathField | wagtail.admin.forms.choosers |
+----------------------------------------------+---------------------------------------+
| ExternalLinkChooserForm | wagtail.admin.forms.choosers |
+----------------------------------------------+---------------------------------------+
| EmailLinkChooserForm | wagtail.admin.forms.choosers |
+----------------------------------------------+---------------------------------------+
| CollectionViewRestrictionForm | wagtail.admin.forms.collections |
+----------------------------------------------+---------------------------------------+
| CollectionForm | wagtail.admin.forms.collections |
+----------------------------------------------+---------------------------------------+
| BaseCollectionMemberForm | wagtail.admin.forms.collections |
+----------------------------------------------+---------------------------------------+
| BaseGroupCollectionMemberPermissionFormSet | wagtail.admin.forms.collections |
+----------------------------------------------+---------------------------------------+
| collection_member_permission_formset_factory | wagtail.admin.forms.collections |
+----------------------------------------------+---------------------------------------+
| CopyForm | wagtail.admin.forms.pages |
+----------------------------------------------+---------------------------------------+
| PageViewRestrictionForm | wagtail.admin.forms.pages |
+----------------------------------------------+---------------------------------------+
| SearchForm | wagtail.admin.forms.search |
+----------------------------------------------+---------------------------------------+
| BaseViewRestrictionForm | wagtail.admin.forms.view_restrictions |
+----------------------------------------------+---------------------------------------+
The following definitions remain in ``wagtail.admin.forms``: ``FORM_FIELD_OVERRIDES``, ``DIRECT_FORM_FIELD_OVERRIDES``, ``formfield_for_dbfield``, ``WagtailAdminModelFormMetaclass``, ``WagtailAdminModelForm`` and ``WagtailAdminPageForm``.