Changes from 2.16rc1:

• Formalised Django 4.0 support (Matt Westcott)
• Changed security contact address to security@wagtail.org (Jake Howard)
• Fix: Implement correct check for SQLite installations without full-text search support (Matt Westcott)
• Fix: Prevent error on redirects with route path set for a non-RoutablePageMixin page, and removed field from form (Andy Babic)

Full 2.16 changelog:

• Added support for Django 4.0
• Removed support for Django 3.0 and 3.1
• Removed support for Python 3.6
• Added persistent IDs for ListBlock items, allowing commenting and improvements to revision comparisons (Matt Westcott, Tidjani Dia, with sponsorship from NHS)
• Added Aging Pages report (Tidjani Dia)
• Added automatic redirect creation feature (Andy Babic, with sponsorship from The National Archives)
• Added page_slug_changed signal for pages (Andy Babic)
• Add more SketchFab oEmbed patterns for models (Tom Usher)
• Add collapse option to StreamField, StreamBlock, and ListBlock which will load all sub-blocks initially collapsed (Matt Westcott)
• Private pages can now be fetched over the API (Nabil Khalil)
• Added alias_of field to the pages API (Dmitrii Faiazov)
• Add support for Azure CDN and Front Door front-end cache invalidation (Tomasz Knapik)
• Improved styling of workflow timeline modal view (Tidjani Dia)
• Add secondary actions menu in edit page headers (Tidjani Dia)
• Removed WOFF fonts
• Add system check for missing core Page fields in search_fields (LB (Ben Johnston))
• Improve CircleCI frontend & backend build caches, add automated browser accessibility test suite in CircleCI (Thibaud Colas)
• Add a 'remember me' checkbox to the admin sign in form, if unticked (default) the auth session will expire if the browser is closed (Michael Karamuth, Jake Howard)
• When returning to image or document listing views after editing, filters (collection or tag) are now remembered (Tidjani Dia)
• Improve the visibility of field error messages, in Windows high-contrast mode and out (Jason Attwood)
• Improve implementations of visually-hidden text in explorer and main menu toggle (Martin Coote)
• Add locale labels to page listings (Dan Braghis)
• Add locale labels to page reports (Dan Braghis)
• Change release check domain to releases.wagtail.org (Jake Howard)
• Add the user who submitted a page for moderation to the "Awaiting your review" homepage summary panel (Tidiane Dia)
• When moving pages, default to the current parent section (Tidjani Dia)
• admin/expanding_formset.js has been renamed to admin/expanding-formset.js (LB (Ben Johnston))
• Change docs URL to docs.wagtail.org (Jake Howard)
• Update links to wagtail.io to point to new domain wagtail.org (Jake Howard)
• Add borders to TypedTableBlock to help visualize rows and columns (Scott Cranfill)
• Set default submit button label on generic create views to 'Create' instead of 'Save' (Matt Westcott)
• Improve display of image listing for long image titles (Krzysztof Jeziorny)
• Use SVG icons in admin home page site summary items (Jérôme Lebleu)
• Ensure site summary items wrap on smaller devices on the admin home page (Jérôme Lebleu)
• Rework Workflow task chooser modal to align with other chooser modals, using consistent pagination and leveraging class based views (Matt Westcott)
• Implemented a locale switcher on the forms listing page in the admin (Dan Braghis)
• Implemented a locale switcher on the page chooser modal (Dan Braghis)
• Implemented the wagtail_site template tag for Jinja2 (Vladimir Tananko)
• Change webmaster to website administrator in the admin (Naomi Morduch Toubman)
• Added documentation for creating custom submenus in the admin menu (Sævar Öfjörð Magnússon)
• Choice blocks in StreamField now show label rather than value when collapsed (Jérôme Lebleu)
• Added documentation to clarify configuration of user-uploaded files (Cynthia Kiser)
• Change security contact address to security@wagtail.org (Jake Howard)
• Fix: Accessibility fixes for Windows high contrast mode; Dashboard icons colour and contrast, help/error/warning blocks for fields and general content, side comment buttons within the page editor, dropdown buttons (Sakshi Uppoor, Shariq Jamil, LB (Ben Johnston), Jason Attwood)
• Fix: Rename additional 'spin' CSS animations to avoid clashes with other libraries (Kevin Gutiérrez)
• Fix: default_app_config deprecations for Django >= 3.2 (Tibor Leupold)
• Fix: Refresh page from database on create before passing to hooks. Page aliases get correct first_published_date and last_published_date (Dan Braghis)
• Fix: Additional login form fields from WAGTAILADMIN_USER_LOGIN_FORM are now rendered correctly (Michael Karamuth)
• Fix: Icon only button styling issue on small devices where height would not be set correctly (Vu Pham)
• Fix: Add padding to the Draftail editor to ensure ol items are not cut off (Khanh Hoang)
• Fix: Prevent opening choosers multiple times for Image, Page, Document, Snippet (LB (Ben Johnston))
• Fix: Ensure subsequent changes to styles files are picked up by Gulp watch (Jason Attwood)
• Fix: Ensure that programmatic page moves are correctly logged as 'move' and not 'reorder' in some cases (Andy Babic)