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* Added support for viewing previous revisions of pages, and previewing or rolling back to earlier versions
* Introduced collections, for image / document organisation
* The Wagtail userbar on the frontend has been redesigned, and no longer depends on an iframe (Thomas Winter, Gareth Price).
* The page editor now produces a warning if the user navigates away without saving changes
* 'Add document' interface now supports uploading multiple documents at once
* The `Document` model can now be overridden using the new `WAGTAILDOCS_DOCUMENT_MODEL` setting (Alex Gleason)
* Wagtail no longer depends on django-compressor
* The page search interface now searches all fields instead of just the title (Kait Crawford)
* Snippets now support a custom `edit_handler` property (Mikalai Radchuk)
* Date/time pickers now respect the locale's 'first day of week' setting (Peter Quade)
* Refactored the way forms are constructed for the page editor, to allow custom forms to be used
* Notification message on publish now indicates whether the page is being published now or scheduled for publication in future (Chris Rogers)
* Server errors when uploading images / documents through the chooser modal are now reported back to the user (Nigel Fletton)
* Added a hook `insert_global_admin_css` for inserting custom CSS throughout the admin backend (Tom Dyson)
* Added a hook `construct_explorer_page_queryset` for customizing the set of pages displayed in the page explorer
* Page models now perform field validation, including testing slugs for uniqueness within a parent page, at the model level on saving
* Page slugs are now auto-generated at the model level on page creation if one has not been specified explicitly
* The `Page` model now has two new methods `get_site()` and `get_url_parts()` to aid with customizing the page URL generation logic
* Upgraded jQuery to 2.2.1 (Charlie Choiniere)
* Multiple homepage summary items (`construct_homepage_summary_items` hook) now better vertically spaced (Nicolas Kuttler)
* Email notifications can now be sent in HTML format (Mike Dingjan)
* `StreamBlock` now has provision for throwing non-field-specific validation errors
* Wagtail now works with Willow 0.3, which supports auto-correcting the orientation of images based on EXIF data
* New translations for Hungarian, Swedish (Sweden) and Turkish
* Fix: Custom page managers no longer raise an error when used on an abstract model
* Fix: Wagtail's migrations are now all reversible (Benjamin Bach)
* Fix: Deleting a page content type now preserves existing pages as basic Page instances, to prevent tree corruption
* Fix: The `Page.path` field is now explicitly given the "C" collation on PostgreSQL to prevent tree ordering issues when using a database created with the Slovak locale
* Fix: Wagtail's compiled static assets are now put into the correct directory on Windows (Aarni Koskela)
* Fix: `ChooserBlock` now correctly handles models with primary keys other than `id` (alexpilot11)
* Fix: Fixed typo in Wistia oEmbed pattern (Josh Hurd)
* Fix: Added more accurate help text for the Administrator flag on user accounts (Matt Fozard)
* Fix: Tags added on the multiple image uploader are now saved correctly
* Fix: Documents created by a user are no longer deleted when the user is deleted
* Fix: Fixed a crash in `RedirectMiddleware` when a middleware class before `SiteMiddleware` returns a response (Josh Schneier)
* Fix: Fixed error retrieving the moderator list on pages that are covered by multiple moderator permission records (Matt Fozard)
* Fix: Ordering pages in the explorer by reverse 'last updated' time now puts pages with no revisions at the top
* Fix: WagtailTestUtils now works correctly on custom user models without a ``username`` field (Adam Bolfik)
* Fix: Logging in to the admin as a user with valid credentials but no admin access permission now displays an error message, rather than rejecting the user silently
* Fix: StreamBlock HTML rendering now handles non-ASCII characters correctly on Python 2 (Mikalai Radchuk)
* Fix: Fixed a bug preventing pages with a OneToOneField from being copied (Liam Brenner)
* Fix: SASS compilation errors during Wagtail development no longer cause exit of Gulp process, instead throws error to console and continues (Thomas Winter)
* Fix: Explorer page listing now uses specific page models, so that custom URL schemes defined on Page subclasses are respected
* Fix: Made settings menu clickable again in Firefox 46.0a2 (Juha Kujala)
* Fix: User management index view no longer assumes the presence of `username`, `first_name`, `last_name` and `email` fields on the user model (Eirik Krogstad)