wagtail 1.6rc1 on Python PyPI

Provisional Django 1.10 support
Added the include_block template tag for improved StreamField template inclusion (Matt Westcott, Mikalai Radchuk)
Page slugs now allow unicode on Django >= 1.9 (Behzad Nategh)
Explorer sidebar menu now limits the displayed pages to the ones the user has permission for (Robert Rollins, Matt Westcott)
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)
Multiple ChooserBlocks inside a StreamField are now prefetched in bulk, for improved performance (Michael van Tellingen, Roel Bruggink, Matt Westcott)
Add new EmailBlock and IntegerBlock (Oktay Altay)
Added a new FloatBlock, DecimalBlock and a RegexBlock (Oktay Altay, Andy Babic)
Wagtail version number is now shown on the settings menu (Chris Rogers)
Added a system check to validate that fields listed in search_fields are defined on the model (Josh Schneier)
Added formal APIs for customising the display of StructBlock forms within the page editor (Matt Westcott)
wagtailforms.models.AbstractEmailForm now supports multiple email recipients (Serafeim Papastefanos)
Added ability to delete users through Settings -> Users (Vincent Audebert; thanks also to Ludolf Takens and Tobias Schmidt for alternative implementations)
Page previews now pass additional HTTP headers, to simulate the page being viewed by the logged-in user and avoid clashes with middleware (Robert Rollins)
Added back buttons to page delete and unpublish confirmation screens (Matt Westcott)
Recognise Flickr embed URLs using HTTPS (Danielle Madeley)
Success message when publishing a page now correctly respects custom URLs defined on the specific page class (Chris Darko)
Required blocks inside StreamField are now indicated with asterisks (Stephen Rice)
Fix: Email templates and document uploader now support custom STATICFILES_STORAGE (Jonny Scholes)
Fix: Removed alignment options (deprecated in HTML and not rendered by Wagtail) from TableBlock context menu (Moritz Pfeiffer)
Fix: Fixed incorrect CSS path on ModelAdmin's "choose a parent page" view
Fix: Prevent empty redirect by overnormalisation (Franklin Kingma, Ludolf Takens)
Fix: "Remove link" button in rich text editor didn't trigger "edit" event, leading to the change to sometimes not be persisted (Matt Westcott)
Fix: RichText values can now be correctly evaluated as booleans (Mike Dingjan, Bertrand Bordage)
Fix: wagtailforms no longer assumes an .html extension when determining the landing page template filename (kakulukia)
Fix: Fixed styling glitch on bi-colour icon + text buttons in Chrome (Janneke Janssen)
Fix: StreamField can now be used in an InlinePanel (Gagaro)
Fix: StreamField block renderings using templates no longer undergo double escaping when using Jinja2 (Aymeric Augustin)
Fix: RichText objects no longer undergo double escaping when using Jinja2 (Aymeric Augustin, Matt Westcott)
Fix: Saving a page by pressing enter key no longer triggers a "Changes may not be saved message" (Sean Muck, Matt Westcott)
Fix: RoutablePageMixin no longer breaks in the presence of instance-only attributes such as those generated by FileFields (Fábio Macêdo Mendes)
Fix: The --schema-only flag on update_index no longer expects an argument (Karl Hobley)
Fix: Added file handling to support custom user add/edit forms with images/files (Eraldo Energy)
Fix: Placeholder text in modeladmin search now uses the correct template variable (Adriaan Tijsseling)
Fix: Fixed bad SQL syntax for updating URL paths on Microsoft SQL Server (Jesse Legg)